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2019 - 12 - 25
对于组(zu)(zu)成罗(luo)茨螺杆真(zhen)(zhen)(zhen)空(kong)(kong)机(ji)(ji)(ji)组(zu)(zu),罗(luo)茨泵(beng)(beng)(beng)(beng)与前(qian)(qian)(qian)级(ji)泵(beng)(beng)(beng)(beng)的(de)泵(beng)(beng)(beng)(beng)速(su)比(bi)(bi)选(xuan)择非常(chang)重要(yao)。因(yin)为(wei)罗(luo)茨泵(beng)(beng)(beng)(beng)的(de)压(ya)(ya)(ya)缩(suo)(suo)(suo)比(bi)(bi)非常(chang)有限(xian)。该压(ya)(ya)(ya)缩(suo)(suo)(suo)比(bi)(bi)决(jue)定了前(qian)(qian)(qian)一(yi)(yi)(yi)级(ji)泵(beng)(beng)(beng)(beng)的(de)容量,因(yin)为(wei)压(ya)(ya)(ya)缩(suo)(suo)(suo)比(bi)(bi)与泵(beng)(beng)(beng)(beng)送(song)(song)速(su)度(du)成反比(bi)(bi)。压(ya)(ya)(ya)缩(suo)(suo)(suo)比(bi)(bi)选(xuan)择在(zai)(zai)2~10之(zhi)(zhi)间(jian)。此外,应考虑(lv)要(yao)求进行(xing)预(yu)退(tui)出。  真(zhen)(zhen)(zhen)空(kong)(kong)设备(bei)(bei)是(shi)作(zuo)(zuo)为(wei)各种(zhong)机(ji)(ji)(ji)械(xie)设备(bei)(bei)中(zhong)使用的(de)辅(fu)助设备(bei)(bei)。如果(guo)时(shi)(shi)间(jian)在(zai)(zai)正常(chang)操(cao)作(zuo)(zuo)中(zhong)比(bi)(bi)预(yu)泵(beng)(beng)(beng)(beng)时(shi)(shi)间(jian)好得(de)多,则可(ke)以选(xuan)择较(jiao)小的(de)预(yu)泵(beng)(beng)(beng)(beng)(压(ya)(ya)(ya)缩(suo)(suo)(suo)比(bi)(bi)可(ke)以更大(da)(da))。如果(guo)真(zhen)(zhen)(zhen)空(kong)(kong)密封性(xing)较(jiao)大(da)(da),并且(qie)要(yao)求很快被预(yu)泵(beng)(beng)(beng)(beng)送(song)(song),将使用更大(da)(da)的(de)预(yu)泵(beng)(beng)(beng)(beng)送(song)(song)。有时(shi)(shi),为(wei)了充分发挥设备(bei)(bei)的(de)效率,在(zai)(zai)机(ji)(ji)(ji)组(zu)(zu)前(qian)(qian)(qian)面安(an)装一(yi)(yi)(yi)个较(jiao)大(da)(da)的(de)前(qian)(qian)(qian)置(zhi)泵(beng)(beng)(beng)(beng),在(zai)(zai)正常(chang)运行(xing)后停止,使用一(yi)(yi)(yi)个较(jiao)小的(de)前(qian)(qian)(qian)置(zhi)泵(beng)(beng)(beng)(beng)保持(chi)来节省功率。  选(xuan)择前(qian)(qian)(qian)级(ji)泵(beng)(beng)(beng)(beng)时(shi)(shi),还需(xu)要(yao)考虑(lv)罗(luo)茨真(zhen)(zhen)(zhen)空(kong)(kong)机(ji)(ji)(ji)组(zu)(zu)极限(xian)压(ya)(ya)(ya)力的(de)要(yao)求。对于极限(xian)真(zhen)(zhen)(zhen)空(kong)(kong)度(du)较(jiao)高(gao)的(de)要(yao)求(最高(gao)1× 10-3帕~ 1× 10-2帕压(ya)(ya)(ya)力)一(yi)(yi)(yi)般(ban),选(xuan)用双级(ji)旋(xuan)叶(ye)油(you)封机(ji)(ji)(ji)械(xie)泵(beng)(beng)(beng)(beng)或(huo)双级(ji)滑(hua)燕机(ji)(ji)(ji)械(xie)泵(beng)(beng)(beng)(beng)作(zuo)(zuo)为(wei)前(qian)(qian)(qian)级(ji)泵(beng)(beng)(beng)(beng)。极限(xian)真(zhen)(zhen)(zhen)空(kong)(kong)度(du)要(yao)求在(zai)(zai)(1× 10-2Pa ~ 1× 10-1Pa)之(zhi)(zhi)间(jian)可(ke)选(xuan)用单级(ji)油(you)封机(ji)(ji)(ji)械(xie)泵(beng)(beng)(beng)(beng)作(zuo)(zuo)为(wei)前(qian)(qian)(qian)置(zhi)泵(beng)(beng)(beng)(beng),极限(xian)真(zhen)(zhen)(zhen)空(kong)(kong)度(du)要(yao)求在(zai)(zai)133-1333 Pa之(zhi)(zhi)间(jian)可(ke)选(xuan)用往复真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)(beng)或(huo)液环真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)(beng)作(zuo)(zuo)为(wei)前(qian)(qian)(qian)置(zhi)泵(beng)(beng)(beng)(beng)。  当选(xuan)择往复式(shi)或(huo)液环式(shi)粗真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)(beng)作(zuo)(zuo)为(wei)罗(luo)茨真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)(beng)作(zuo)(zuo)为(wei)前(qian)(qian)(qian)级(ji)泵(beng)(beng)(beng)(beng)时(shi)(shi),前(qian)(qian)(qian)级(ji)泵(beng)(beng)(beng)(beng)的(de)泵(beng)(beng)(beng)(beng)速(su)一(yi)(yi)(yi)般(ban)为(wei)罗(luo)茨真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)(beng)的(de)1/2-1/4,不(bu)能(neng)过(guo)大(da)(da),否(fou)(fou)则压(ya)(ya)(ya)缩(suo)(suo)(suo)比(bi)(bi)过(guo)大(da)(da),导致(zhi)罗(luo)茨真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)(beng)(beng)(beng)排气(qi)(qi)温度(du)高(gao),不(bu)能(neng)工作(zuo)(zuo)正常(chang)。还需(xu)要(yao)考虑(lv)泵(beng)(beng)(beng)(beng)送(song)(song)气(qi)(qi)体(ti)中(zhong)的(de)是(shi)否(fou)(fou)是(shi)否(fou)(fou)含(han)(han)有腐(fu)蚀性(xing)介质,以及是(shi)否(fou)(fou)是(shi)否(fou)(fou)含(han)(han)有大(da)(da)量或(huo)微量的(de)可(ke)冷凝(ning)气(qi)(qi)体(ti)。  如果(guo)含(han)(han)有腐(fu)蚀性(xing)气(qi)(qi)体(ti),不(bu)能(neng)选(xuan)用...
2019 - 12 - 28
真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)负(fu)压(ya)(ya)站(zhan)是以(yi)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)罐(guan)(guan)为真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)储存设(she)(she)备(bei)的(de)(de)(de)(de)(de)(de)(de)整套系(xi)(xi)(xi)(xi)统(tong)(tong)。它有很好的(de)(de)(de)(de)(de)(de)(de)性(xing)(xing)(xing)能(neng)(neng)(neng)和(he)用途(tu)。与(yu)传统(tong)(tong)设(she)(she)备(bei)相比(bi),该(gai)设(she)(she)备(bei)大(da)大(da)节约(yue)了大(da)量(liang)成本。下(xia)面将介绍该(gai)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)系(xi)(xi)(xi)(xi)统(tong)(tong)设(she)(she)备(bei)的(de)(de)(de)(de)(de)(de)(de)性(xing)(xing)(xing)能(neng)(neng)(neng)特(te)(te)点(dian)和(he)工(gong)(gong)作(zuo)(zuo)原理。  一、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)负(fu)压(ya)(ya)站(zhan)工(gong)(gong)作(zuo)(zuo)原理  1.设(she)(she)置真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)系(xi)(xi)(xi)(xi)统(tong)(tong)的(de)(de)(de)(de)(de)(de)(de)上限(xian)和(he)下(xia)限(xian)。系(xi)(xi)(xi)(xi)统(tong)(tong)启动(dong)(dong)(dong)(dong)(dong)后,其(qi)中(zhong)(zhong)一台真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)将开始工(gong)(gong)作(zuo)(zuo),直(zhi)到真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)罐(guan)(guan)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)高于(yu)(yu)(yu)(yu)-0.08兆(zhao)帕(pa)的(de)(de)(de)(de)(de)(de)(de)上限(xian),操(cao)作(zuo)(zuo)将自(zi)动(dong)(dong)(dong)(dong)(dong)停止(zhi)。真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)罐(guan)(guan)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)将被自(zi)动(dong)(dong)(dong)(dong)(dong)止(zhi)回阀自(zi)动(dong)(dong)(dong)(dong)(dong)切断。  2.如(ru)(ru)果(guo)由于(yu)(yu)(yu)(yu)工(gong)(gong)作(zuo)(zuo)需要(yao),真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)罐(guan)(guan)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)低(di)于(yu)(yu)(yu)(yu)-0.06兆(zhao)帕(pa)的(de)(de)(de)(de)(de)(de)(de)下(xia)限(xian)值(zhi),另一个(ge)将自(zi)动(dong)(dong)(dong)(dong)(dong)启动(dong)(dong)(dong)(dong)(dong),直(zhi)到真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)罐(guan)(guan)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)被抽至(zhi)-0.08兆(zhao)帕(pa)的(de)(de)(de)(de)(de)(de)(de)上限(xian)值(zhi),该(gai)循环将自(zi)动(dong)(dong)(dong)(dong)(dong)重(zhong)复运行(xing),以(yi)保(bao)持(chi)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)罐(guan)(guan)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)在(zai)上限(xian)值(zhi)和(he)下(xia)限(xian)值(zhi)之间。  3.对于(yu)(yu)(yu)(yu)经常(chang)使用真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)源且所需泵(beng)(beng)(beng)(beng)送量(liang)不太(tai)大(da)的(de)(de)(de)(de)(de)(de)(de)场合,使用真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)负(fu)压(ya)(ya)站(zhan)系(xi)(xi)(xi)(xi)统(tong)(tong)比(bi)直(zhi)接使用真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)节能(neng)(neng)(neng)很多,大(da)大(da)提(ti)高了真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)的(de)(de)(de)(de)(de)(de)(de)使用寿命(ming)。  二、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)负(fu)压(ya)(ya)站(zhan)性(xing)(xing)(xing)能(neng)(neng)(neng)特(te)(te)点(dian)  1.启动(dong)(dong)(dong)(dong)(dong)后:  整个(ge)操(cao)作(zuo)(zuo)过程可(ke)(ke)以(yi)实现全自(zi)动(dong)(dong)(dong)(dong)(dong)控(kong)制。在(zai)操(cao)作(zuo)(zuo)过程中(zhong)(zhong),真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)系(xi)(xi)(xi)(xi)统(tong)(tong)各(ge)部分的(de)(de)(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)在(zai)其(qi)允许范(fan)围内(nei)上下(xia)波动(dong)(dong)(dong)(dong)(dong),波动(dong)(dong)(dong)(dong)(dong)范(fan)围可(ke)(ke)根据(ju)用户要(yao)求进行(xing)调整。如(ru)(ru)果(guo)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)度(du)低(di)于(yu)(yu)(yu)(yu)设(she)(she)定值(zhi),报警(jing)器(qi)将发出(chu)警(jing)告。  2.该(gai)站(zhan)配有汽水(shui)分离器(qi),可(ke)(ke)以(yi)节约(yue)用水(shui),减少环境污染。  3.系(xi)(xi)(xi)(xi)统(tong)(tong)在(zai)无人操(cao)作(zuo)(zuo)的(de)(de)(de)(de)(de)(de)(de)情(qing)况下(xia)自(zi)动(dong)(dong)(dong)(dong)(dong)控(kong)制,真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)系(xi)(xi)(xi)(xi)统(tong)(tong)在(zai)停电时(shi)可(ke)(ke)以(yi)自(zi)动(dong)(dong)(dong)(dong)(dong)关闭。  如(ru)(ru)果(guo)你(ni)想(xiang)购买(mai)一个(ge)高质量(liang)的(de)(de)(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)负(fu)压(ya)(ya)站(zhan),你(ni)必须(xu)首先了解设(she)(she)备(bei)的(de)(de)(de)(de)(de)(de)(de)性(xing)(xing)(xing)能(neng)(neng)(neng)和(he)工(gong)(gong)作(zuo)(zuo)原理。只(zhi)有这样(yang),你(ni)才能(neng)(neng)(neng)知(zhi)道用什么标准来选择设(she)(she)备(bei)。日常(chang)维护有利(li)于(yu)(yu)(yu)(yu)提(ti)高设(she)(she)备(bei)的(de)(de)(de)(de)(de)(de)(de)使用寿命(ming)。  恒才机电真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)厂(chang)家(jia)主要(yao)产(chan)品...
2019 - 12 - 31
爪(zhua)(zhua)(zhua)型(xing)(xing)干式(shi)(shi)(shi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)的(de)(de)应用太多(duo)了,因为(wei)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)的(de)(de)类(lei)型(xing)(xing)众多(duo),广(guang)泛用于塑料机械(xie)、农(nong)药化(hua)(hua)工(gong)(gong)、染料化(hua)(hua)工(gong)(gong)、砖瓦机械(xie)、低(di)(di)温设备、造(zao)纸(zhi)机械(xie)、医药化(hua)(hua)工(gong)(gong)、食品机械(xie)、工(gong)(gong)业电炉(lu)、电子(zi)(zi)(zi)行业、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)设备、石油(you)化(hua)(hua)工(gong)(gong)、冶金、矿山(shan)和(he)地基处理等领域。  1.爪(zhua)(zhua)(zhua)型(xing)(xing)干式(shi)(shi)(shi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)概(gai)述  爪(zhua)(zhua)(zhua)型(xing)(xing)干式(shi)(shi)(shi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)利用连(lian)接在(zai)两轴(zhou)(zhou)(zhou)上的(de)(de)成(cheng)(cheng)对(dui)的(de)(de)爪(zhua)(zhua)(zhua)型(xing)(xing)转(zhuan)子(zi)(zi)(zi)之(zhi)(zhi)(zhi)间(jian)(jian)、转(zhuan)子(zi)(zi)(zi)与(yu)(yu)泵(beng)(beng)(beng)(beng)腔(qiang)(qiang)(qiang)内(nei)壁之(zhi)(zhi)(zhi)间(jian)(jian)以及(ji)转(zhuan)子(zi)(zi)(zi)与(yu)(yu)隔(ge)板(ban)(ban)之(zhi)(zhi)(zhi)间(jian)(jian)进(jin)行有间(jian)(jian)隙、无(wu)摩擦的(de)(de)啮合所形成(cheng)(cheng)的(de)(de)密闭腔(qiang)(qiang)(qiang)的(de)(de)容积大小变(bian)化(hua)(hua)来完成(cheng)(cheng)吸排气(qi)过程。  2.爪(zhua)(zhua)(zhua)型(xing)(xing)干式(shi)(shi)(shi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)结(jie)构(gou)  爪(zhua)(zhua)(zhua)型(xing)(xing)干式(shi)(shi)(shi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)的(de)(de)结(jie)构(gou),一(yi)(yi)般采用多(duo)级(ji)转(zhuan)子(zi)(zi)(zi)串(chuan)联(lian),或罗茨转(zhuan)子(zi)(zi)(zi)与(yu)(yu)多(duo)级(ji)转(zhuan)子(zi)(zi)(zi)串(chuan)联(lian)的(de)(de)形式(shi)(shi)(shi),组(zu)成(cheng)(cheng)多(duo)级(ji)爪(zhua)(zhua)(zhua)型(xing)(xing)干式(shi)(shi)(shi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)。  四级(ji)泵(beng)(beng)(beng)(beng)腔(qiang)(qiang)(qiang)依(yi)次串(chuan)联(lian),每(mei)级(ji)泵(beng)(beng)(beng)(beng)腔(qiang)(qiang)(qiang)内(nei)各有一(yi)(yi)对(dui)共(gong)轭啮合,做同(tong)(tong)步反向运动(dong)的(de)(de)爪(zhua)(zhua)(zhua)型(xing)(xing)转(zhuan)子(zi)(zi)(zi)。  四级(ji)泵(beng)(beng)(beng)(beng)腔(qiang)(qiang)(qiang)中的(de)(de)第一(yi)(yi)级(ji)泵(beng)(beng)(beng)(beng)腔(qiang)(qiang)(qiang)为(wei)吸气(qi)级(ji),其吸气(qi)容积比后面(mian)三级(ji)大,形成(cheng)(cheng)级(ji)间(jian)(jian)压缩(suo)。  四对(dui)转(zhuan)子(zi)(zi)(zi)装在(zai)二根平行轴(zhou)(zhou)(zhou)上,轴(zhou)(zhou)(zhou)由(you)上下两端轴(zhou)(zhou)(zhou)承支撑,泵(beng)(beng)(beng)(beng)腔(qiang)(qiang)(qiang)级(ji)与(yu)(yu)级(ji)之(zhi)(zhi)(zhi)间(jian)(jian)有隔(ge)板(ban)(ban),隔(ge)板(ban)(ban)上有吸排气(qi)通道。  电动(dong)机倒立安装,经过渡齿轮将(jiang)动(dong)力传递到转(zhuan)子(zi)(zi)(zi)轴(zhou)(zhou)(zhou)上,转(zhuan)子(zi)(zi)(zi)轴(zhou)(zhou)(zhou)由(you)一(yi)(yi)对(dui)同(tong)(tong)步时(shi)限齿轮带(dai)动(dong)及(ji)调(diao)整和(he)固定转(zhuan)子(zi)(zi)(zi)的(de)(de)相位(wei)。  转(zhuan)子(zi)(zi)(zi)之(zhi)(zhi)(zhi)间(jian)(jian)及(ji)转(zhuan)子(zi)(zi)(zi)与(yu)(yu)泵(beng)(beng)(beng)(beng)腔(qiang)(qiang)(qiang)内(nei)部留有微小缝隙,转(zhuan)子(zi)(zi)(zi)悬浮于泵(beng)(beng)(beng)(beng)腔(qiang)(qiang)(qiang)使得(de)过流部分无(wu)任何实质性(xing)接触摩擦,也(ye)不需要润滑,这就(jiu)保证(zheng)了爪(zhua)(zhua)(zhua)泵(beng)(beng)(beng)(beng)可以长期稳定保持极限真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)、抽速、压缩(suo)比不变(bian),寿命长。  3.爪(zhua)(zhua)(zhua)型(xing)(xing)干式(shi)(shi)(shi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)特点  泵(beng)(beng)(beng)(beng)腔(qiang)(qiang)(qiang)内(nei)不含油(you)类(lei)等任何介质、清洁抽空(kong)(kong)(kong)(kong),对(dui)环境无(wu)污染。  真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度(du)高,可达3Pa。  结(jie)构(gou)简单,易于操作和(he)维护,运行成(cheng)(cheng)本低(di)(di)。  ...
2020 - 01 - 07
01.离(li)(li)(li)(li)心(xin)(xin)(xin)泵(beng)(beng)(beng)(beng)的(de)(de)(de)(de)工作原(yuan)理  水(shui)泵(beng)(beng)(beng)(beng)开(kai)动(dong)前(qian),先将(jiang)泵(beng)(beng)(beng)(beng)和进(jin)(jin)水(shui)管灌(guan)满(man)水(shui)。当叶轮(lun)(lun)(lun)飞快旋(xuan)转(zhuan)(zhuan)时,叶轮(lun)(lun)(lun)内(nei)的(de)(de)(de)(de)液(ye)(ye)体(ti)(ti)(ti)在(zai)叶轮(lun)(lun)(lun)内(nei)叶片的(de)(de)(de)(de)推动(dong)下也(ye)跟着旋(xuan)转(zhuan)(zhuan)起(qi)来,从而(er)使(shi)液(ye)(ye)体(ti)(ti)(ti)获得(de)了离(li)(li)(li)(li)心(xin)(xin)(xin)力(li),并沿着叶片流(liu)(liu)道从叶轮(lun)(lun)(lun)的(de)(de)(de)(de)中(zhong)(zhong)心(xin)(xin)(xin)往外运动(dong),然后(hou)从叶片的(de)(de)(de)(de)端部被甩出(chu)进(jin)(jin)入泵(beng)(beng)(beng)(beng)壳内(nei)的(de)(de)(de)(de)蜗(wo)室或扩散(san)管(或导轮(lun)(lun)(lun))。当液(ye)(ye)体(ti)(ti)(ti)流(liu)(liu)到(dao)扩散(san)管时,由于(yu)液(ye)(ye)流(liu)(liu)的(de)(de)(de)(de)断面(mian)积渐渐扩大(da),流(liu)(liu)速(su)减慢(man),将(jiang)一部分动(dong)能(neng)(neng)转(zhuan)(zhuan)化为(wei)静能(neng)(neng)头,使(shi)压(ya)力(li)上(shang)升(sheng),最后(hou)从排(pai)出(chu)管压(ya)出(chu)。与此(ci)同(tong)时,在(zai)叶轮(lun)(lun)(lun)中(zhong)(zhong)心(xin)(xin)(xin)由于(yu)液(ye)(ye)体(ti)(ti)(ti)被甩出(chu)产生了局(ju)部真空,因而(er)吸液(ye)(ye)池(chi)(chi)内(nei)的(de)(de)(de)(de)液(ye)(ye)体(ti)(ti)(ti)在(zai)液(ye)(ye)面(mian)压(ya)力(li)作用(yong)下就从吸入管源源不断地被吸入泵(beng)(beng)(beng)(beng)内(nei)。叶轮(lun)(lun)(lun)连(lian)续旋(xuan)转(zhuan)(zhuan),将(jiang)液(ye)(ye)体(ti)(ti)(ti)不断地由吸液(ye)(ye)池(chi)(chi)送(song)(song)往高(gao)处(chu)(chu)或压(ya)力(li)容器。综上(shang)所(suo)(suo)述,离(li)(li)(li)(li)心(xin)(xin)(xin)泵(beng)(beng)(beng)(beng)之所(suo)(suo)以能(neng)(neng)够输送(song)(song)液(ye)(ye)体(ti)(ti)(ti),主要靠(kao)离(li)(li)(li)(li)心(xin)(xin)(xin)力(li)的(de)(de)(de)(de)作用(yong),故称(cheng)为(wei)离(li)(li)(li)(li)心(xin)(xin)(xin)泵(beng)(beng)(beng)(beng)。  02.离(li)(li)(li)(li)心(xin)(xin)(xin)泵(beng)(beng)(beng)(beng)的(de)(de)(de)(de)特点  1. 气(qi)(qi)缚(fu)(fu)现(xian)(xian)象:离(li)(li)(li)(li)心(xin)(xin)(xin)泵(beng)(beng)(beng)(beng)启动(dong)时,若(ruo)泵(beng)(beng)(beng)(beng)内(nei)没有灌(guan)液(ye)(ye)或灌(guan)液(ye)(ye)不满(man),泵(beng)(beng)(beng)(beng)壳内(nei)就会有空气(qi)(qi),由于(yu)空气(qi)(qi)密度很(hen)低(di),旋(xuan)转(zhuan)(zhuan)后(hou)产生的(de)(de)(de)(de)离(li)(li)(li)(li)心(xin)(xin)(xin)力(li)小,使(shi)叶轮(lun)(lun)(lun)中(zhong)(zhong)心(xin)(xin)(xin)区所(suo)(suo)形成(cheng)(cheng)的(de)(de)(de)(de)低(di)压(ya)不足(zu)以将(jiang)贮(zhu)槽内(nei)的(de)(de)(de)(de)液(ye)(ye)体(ti)(ti)(ti)吸入泵(beng)(beng)(beng)(beng)内(nei),虽启动(dong)离(li)(li)(li)(li)心(xin)(xin)(xin)泵(beng)(beng)(beng)(beng)也(ye)不能(neng)(neng)输送(song)(song)液(ye)(ye)体(ti)(ti)(ti)。此(ci)种(zhong)现(xian)(xian)象称(cheng)为(wei)气(qi)(qi)缚(fu)(fu),表示离(li)(li)(li)(li)心(xin)(xin)(xin)泵(beng)(beng)(beng)(beng)无自吸能(neng)(neng)力(li),所(suo)(suo)以必须(xu)在(zai)启动(dong)前(qian)向壳内(nei)灌(guan)满(man)液(ye)(ye)体(ti)(ti)(ti)。  2. 汽(qi)蚀(shi)现(xian)(xian)象:离(li)(li)(li)(li)心(xin)(xin)(xin)泵(beng)(beng)(beng)(beng)在(zai)运转(zhuan)(zhuan)中(zhong)(zhong),若(ruo)其过流(liu)(liu)部分的(de)(de)(de)(de)局(ju)部区域(通常是叶轮(lun)(lun)(lun)叶片进(jin)(jin)口稍后(hou)的(de)(de)(de)(de)某处(chu)(chu))因为(wei)某种(zhong)原(yuan)因,抽送(song)(song)液(ye)(ye)体(ti)(ti)(ti)的(de)(de)(de)(de)压(ya)力(li)降低(di)到(dao)当时温度下的(de)(de)(de)(de)液(ye)(ye)体(ti)(ti)(ti)汽(qi)化压(ya)力(li)时,液(ye)(ye)体(ti)(ti)(ti)便在(zai)该(gai)处(chu)(chu)开(kai)始汽(qi)化,产生大(da)量蒸汽(qi),形成(cheng)(cheng)气(qi)(qi)泡(pao),当含有大(da)量气(qi)(qi)泡(pao)的(de)(de)(de)(de)液(ye)(ye)体(ti)(ti)(ti)向前(qian)经叶轮(lun)(lun)(lun)内(nei)的(de)(de)(de)(de)高(gao)压(ya)区时,气(qi)(qi)泡(pao)周(zhou)围的(de)(de)(de)(de)高(gao)压(ya)液(ye)(ye)体(ti)(ti)(ti)致(zhi)使(shi)气(qi)(qi)泡(pao)急剧地缩小以至破裂(lie)。在(zai)气(qi)(qi)泡(pao)凝结(jie)破裂(lie)的(de)(de)(de)(de)同(tong)时,...
2020 - 01 - 10
真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)技(ji)术可(ke)(ke)(ke)以(yi)(yi)(yi)在(zai)食(shi)用(yong)(yong)(yong)菌(jun)产(chan)业(ye)中(zhong)有多种应用(yong)(yong)(yong)。今天,螺杆真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)制造(zao)商将与(yu)每(mei)个(ge)人一起看看他们能(neng)拥有什么。  如果真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)技(ji)术应用(yong)(yong)(yong)于食(shi)用(yong)(yong)(yong)菌(jun)产(chan)业(ye),它可(ke)(ke)(ke)能(neng)涉(she)(she)及(ji)食(shi)用(yong)(yong)(yong)菌(jun)的(de)栽培(pei)和(he)(he)后(hou)(hou)期(qi)(qi)加(jia)(jia)工(gong)。  培(pei)养(yang)过(guo)(guo)(guo)程中(zhong)可(ke)(ke)(ke)能(neng)涉(she)(she)及(ji)的(de)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)应用(yong)(yong)(yong)包括真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)浸渍(zi)(zi)、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)抽吸、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)发(fa)(fa)酵(jiao)(jiao)、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷却等(deng)(deng)。首先,将培(pei)养(yang)材料(liao)浸泡(pao)在(zai)水中(zhong),并通(tong)过(guo)(guo)(guo)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)浸渍(zi)(zi)快(kuai)速均匀地预湿(shi),为后(hou)(hou)续灭(mie)菌(jun)处理(li)创造(zao)条件。其次,培(pei)养(yang)料(liao)在(zai)运输(shu)和(he)(he)进(jin)料(liao)过(guo)(guo)(guo)程中(zhong)可(ke)(ke)(ke)以(yi)(yi)(yi)通(tong)过(guo)(guo)(guo)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)抽吸进(jin)行(xing)多点运输(shu),避(bi)免物料(liao)泄漏和(he)(he)污染。然(ran)后(hou)(hou)在(zai)培(pei)养(yang)料(liao)的(de)发(fa)(fa)酵(jiao)(jiao)过(guo)(guo)(guo)程中(zhong),抽真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)后(hou)(hou)通(tong)入氧气进(jin)行(xing)发(fa)(fa)酵(jiao)(jiao),可(ke)(ke)(ke)以(yi)(yi)(yi)实(shi)现均匀的(de)发(fa)(fa)酵(jiao)(jiao)过(guo)(guo)(guo)程,同时缩(suo)短发(fa)(fa)酵(jiao)(jiao)周(zhou)期(qi)(qi),废气更容易处理(li);最后(hou)(hou)对(dui)袋内(nei)混合菌(jun)进(jin)行(xing)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)灭(mie)菌(jun)和(he)(he)冷却处理(li),使得灭(mie)菌(jun)过(guo)(guo)(guo)程更加(jia)(jia)彻底,缩(suo)短了加(jia)(jia)工(gong)时间,减少了空(kong)(kong)(kong)(kong)(kong)(kong)(kong)间占用(yong)(yong)(yong),避(bi)免了污染,提(ti)高了食(shi)用(yong)(yong)(yong)菌(jun)产(chan)量(liang)。  除(chu)了培(pei)养(yang)过(guo)(guo)(guo)程之外,食(shi)用(yong)(yong)(yong)菌(jun)收获后(hou)(hou)的(de)贮(zhu)藏(zang)和(he)(he)加(jia)(jia)工(gong)可(ke)(ke)(ke)能(neng)涉(she)(she)及(ji)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)保藏(zang)、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)干燥(zao)和(he)(he)其他操作。为了抑(yi)制食(shi)用(yong)(yong)(yong)菌(jun)收获后(hou)(hou)的(de)呼吸,可(ke)(ke)(ke)以(yi)(yi)(yi)采用(yong)(yong)(yong)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)保鲜(xian)来延(yan)长贮(zhu)藏(zang)时间。对(dui)黑木耳和(he)(he)银(yin)耳等(deng)(deng)再加(jia)(jia)工(gong)的(de)需求将涉(she)(she)及(ji)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)干燥(zao)和(he)(he)其他应用(yong)(yong)(yong),除(chu)此之外,还可(ke)(ke)(ke)能(neng)涉(she)(she)及(ji)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)预冷、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)冷却、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)浸渍(zi)(zi)等(deng)(deng)。  恒才(cai)(cai)机电真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)厂家(jia)主要产(chan)品(pin)有2BV、V、VG、VI、VZ、VN、LRP系(xi)列水环真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng),X、GVD系(xi)列旋片(pian)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng),ZJ系(xi)列罗茨真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng),GXS、DHS、VSD、GHS系(xi)列螺杆真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng),DZS系(xi)列爪(zhua)泵(beng)(beng),中(zhong)央真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)系(xi)统等(deng)(deng)产(chan)品(pin)。公司代理(li)有阿特拉斯(si).科(ke)普(pu)柯(atlas),司倍克(ke)speck产(chan)品(pin).真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)厂家(jia)恒才(cai)(cai)机电凭借多年的(de)生产(chan)...
2020 - 01 - 15
旋片(pian)(pian)(pian)(pian)(pian)真空(kong)泵(beng)的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)声(sheng)通(tong)常是(shi)指当泵(beng)的(de)(de)(de)温(wen)度(du)稳定时,在(zai)极限真空(kong)下测(ce)得的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)声(sheng)水(shui)平。  它包(bao)括泵(beng)本身的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)音(yin)(yin)和电机的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)音(yin)(yin)。对(dui)(dui)(dui)于(yu)用(yong)户而言,它还关注泵(beng)温(wen)度(du)不(bu)(bu)稳定时的(de)(de)(de)启(qi)(qi)动(dong)(dong)阶(jie)段(duan)噪(zao)(zao)(zao)(zao)(zao)声(sheng)、不(bu)(bu)同(tong)入口(kou)压(ya)(ya)力下的(de)(de)(de)运行(xing)(xing)噪(zao)(zao)(zao)(zao)(zao)声(sheng)以(yi)及(ji)气(qi)(qi)体(ti)开启(qi)(qi)镇流器的(de)(de)(de)运行(xing)(xing)噪(zao)(zao)(zao)(zao)(zao)声(sheng)。因(yin)(yin)此(ci)。应(ying)该考虑许(xu)多(duo)因(yin)(yin)素。  旋片(pian)(pian)(pian)(pian)(pian)真空(kong)泵(beng)的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)声(sheng)源如(ru)下  (1)转(zhuan)子对(dui)(dui)(dui)缸(gang)体(ti)的(de)(de)(de)影(ying)响,泵(beng)的(de)(de)(de)剩余容(rong)积和排气(qi)(qi)死(si)区(qu)内压(ya)(ya)力油(you)的(de)(de)(de)发声(sheng)。  (2)排气(qi)(qi)阀(fa)片(pian)(pian)(pian)(pian)(pian)对(dui)(dui)(dui)阀(fa)座和支架的(de)(de)(de)影(ying)响。  (3)盒子里的(de)(de)(de)回声(sheng)和气(qi)(qi)泡破(po)裂。  (4)轴承噪(zao)(zao)(zao)(zao)(zao)声(sheng)。  (5)大量油(you)气(qi)(qi)撞(zhuang)击挡油(you)板产生的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)音(yin)(yin)。  (6)其他。如(ru)传动(dong)(dong)引起的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)音(yin)(yin)、风冷式泵(beng)的(de)(de)(de)风扇噪(zao)(zao)(zao)(zao)(zao)音(yin)(yin)等。  (7)电机噪(zao)(zao)(zao)(zao)(zao)声(sheng),这是(shi)一(yi)个关键因(yin)(yin)素。  旋片(pian)(pian)(pian)(pian)(pian)真空(kong)泵(beng)的(de)(de)(de)设计和处(chu)理建议(yi)如(ru)下:  1.旋片(pian)(pian)(pian)(pian)(pian)对(dui)(dui)(dui)气(qi)(qi)缸(gang)壁的(de)(de)(de)影(ying)响  如(ru)果(guo)使用(yong)不(bu)(bu)当的(de)(de)(de)设计、制(zhi)造或(huo)材料导(dao)(dao)致旋片(pian)(pian)(pian)(pian)(pian)滑动(dong)(dong)不(bu)(bu)顺畅,或(huo)者因(yin)(yin)为存在(zai)死(si)气(qi)(qi)隙,不(bu)(bu)可压(ya)(ya)缩的(de)(de)(de)油(you)会(hui)导(dao)(dao)致旋片(pian)(pian)(pian)(pian)(pian)头(tou)部不(bu)(bu)总是(shi)靠近(jin)气(qi)(qi)缸(gang)壁运行(xing)(xing),这将导(dao)(dao)致旋片(pian)(pian)(pian)(pian)(pian)撞(zhuang)击气(qi)(qi)缸(gang)壁。因(yin)(yin)此(ci),宜(yi)采用(yong)圆弧面分(fen)隔进出口(kou)的(de)(de)(de)结(jie)构(gou)(gou)。用(yong)排气(qi)(qi)导(dao)(dao)槽消(xiao)除死(si)区(qu)。采用(yong)线分(fen)离结(jie)构(gou)(gou)时,排气(qi)(qi)端点到切(qie)点的(de)(de)(de)距离应(ying)尽可能(neng)缩短。对(dui)(dui)(dui)于(yu)70l/s以(yi)下的(de)(de)(de)旋片(pian)(pian)(pian)(pian)(pian)泵(beng),考虑到旋片(pian)(pian)(pian)(pian)(pian)的(de)(de)(de)实(shi)际(ji)厚度(du),建议(yi)取(qu)7 ~ Lomm,大泵(beng)取(qu)大值。当太近(jin)时,由(you)于(yu)转(zhuan)弯  如(ru)果(guo)转(zhuan)子旋转(zhuan)到切(qie)点位置时密封效果(guo)不(bu)(bu)好,那么副转(zhuan)子槽的(de)(de)(de)存在(zai)以(yi)及(ji)转(zhuan)子头(tou)仅(jin)与一(yi)个窄条(tiao)的(de)(de)(de)接触将影(ying)响泵(beng)的(de)(de)(de)泵(beng)速,甚至泵(beng)的(de)(de)(de)极限压(ya)(ya)力。可以(yi)看出,这种(zhong)结(jie)构(gou)(gou)不(bu)(bu)能(neng)完全消(xiao)除排气(qi)(qi)死(si)区(qu),限制(zhi)了降(jiang)噪(zao)(zao)(zao)(zao)(zao)水(shui)平。  应(ying)该指出,转(zhuan)子和槽之间(jian)的(de)(de)(de)间(jian)隙过(guo)大会(hui)降(jiang)低性能(neng)。...
2020 - 02 - 19
真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)是(shi)指使(shi)(shi)用(yong)机械,物理,化(hua)学(xue)(xue)或物理化(hua)学(xue)(xue)方法(fa)排(pai)(pai)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)送容(rong)(rong)器以(yi)获得真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)的(de)(de)(de)装(zhuang)(zhuang)置或设备。一般而言,真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)是(shi)使(shi)(shi)用(yong)各种方法(fa)来改善,产(chan)生和(he)(he)维持封闭(bi)空(kong)(kong)(kong)(kong)(kong)间(jian)中的(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)的(de)(de)(de)装(zhuang)(zhuang)置。  真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)分类(lei)  根据真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)工(gong)作原理,真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)基本上(shang)可(ke)以(yi)分为两类(lei),即可(ke)变(bian)容(rong)(rong)量(liang)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)和(he)(he)动(dong)(dong)量(liang)传(chuan)递(di)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)。  可(ke)变(bian)容(rong)(rong)量(liang)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)是(shi)一种真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng),它利(li)用(yong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)容(rong)(rong)积的(de)(de)(de)周期性变(bian)化(hua)来完(wan)成(cheng)吸(xi)气(qi)和(he)(he)排(pai)(pai)气(qi),从(cong)而达到抽气(qi)的(de)(de)(de)目的(de)(de)(de)。气(qi)体(ti)(ti)(ti)(ti)在离(li)开(kai)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)之前被压缩。  动(dong)(dong)量(liang)传(chuan)递(di)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(分子(zi)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng))依靠高速旋(xuan)(xuan)(xuan)(xuan)转(zhuan)(zhuan)(zhuan)的(de)(de)(de)叶片或高速射流将动(dong)(dong)量(liang)传(chuan)递(di)给(ji)气(qi)体(ti)(ti)(ti)(ti)或气(qi)体(ti)(ti)(ti)(ti)分子(zi),从(cong)而使(shi)(shi)气(qi)体(ti)(ti)(ti)(ti)从(cong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)的(de)(de)(de)入口连续传(chuan)输(shu)到其出(chu)口。  可(ke)变(bian)容(rong)(rong)量(liang)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)分为:往(wang)复(fu)式,旋(xuan)(xuan)(xuan)(xuan)转(zhuan)(zhuan)(zhuan)式(旋(xuan)(xuan)(xuan)(xuan)片,滑阀(fa),液环、浇注区,螺旋(xuan)(xuan)(xuan)(xuan),爪形(xing)转(zhuan)(zhuan)(zhuan)子(zi))和(he)(he)其他(ta)类(lei)型。  浇注区和(he)(he)冷刀区的(de)(de)(de)设备使(shi)(shi)用(yong)可(ke)变(bian)容(rong)(rong)量(liang)的(de)(de)(de)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)。下(xia)(xia)面(mian)详细(xi)描(miao)述可(ke)变(bian)容(rong)(rong)量(liang)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)。  可(ke)变(bian)容(rong)(rong)量(liang)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)分类(lei)  1、往(wang)复(fu)式真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)  通(tong)过活塞在泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)中的(de)(de)(de)往(wang)复(fu)运(yun)动(dong)(dong),气(qi)体(ti)(ti)(ti)(ti)被吸(xi)入,压缩和(he)(he)排(pai)(pai)出(chu)。也称(cheng)为活塞真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)。有(you)关详细(xi)说(shuo)明,请(qing)参见以(yi)下(xia)(xia)视频:  2、旋(xuan)(xuan)(xuan)(xuan)片真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)  利(li)用(yong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)腔(qiang)内转(zhuan)(zhuan)(zhuan)子(zi)零件的(de)(de)(de)旋(xuan)(xuan)(xuan)(xuan)转(zhuan)(zhuan)(zhuan)运(yun)动(dong)(dong),气(qi)体(ti)(ti)(ti)(ti)被吸(xi)入,压缩和(he)(he)排(pai)(pai)出(chu)。它大(da)致分为以(yi)下(xia)(xia)几(ji)类(lei):  1)油封真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)  它是(shi)一种旋(xuan)(xuan)(xuan)(xuan)转(zhuan)(zhuan)(zhuan)可(ke)变(bian)容(rong)(rong)量(liang)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng),它使(shi)(shi)用(yong)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)油来密(mi)封泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)中运(yun)动(dong)(dong)部件之间(jian)的(de)(de)(de)间(jian)隙,并减少泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)中的(de)(de)(de)有(you)害(hai)空(kong)(kong)(kong)(kong)(kong)间(jian)。该(gai)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)通(tong)常配有(you)气(qi)镇设备。它主要(yao)包括旋(xuan)(xuan)(xuan)(xuan)转(zhuan)(zhuan)(zhuan)叶片真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng),固定叶片真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng),滑阀(fa)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)和(he)(he)摆线真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)。  2)液环真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)  泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)壳(qiao)中带有(you)多叶片的(de)(de)(de)偏(pian)心(xin)(xin)转(zhuan)(zhuan)(zhuan)子(zi)。当(dang)其旋(xuan)(xuan)(xuan)(xuan)转(zhuan)(zhuan)(zhuan)时,工(gong)作流体(ti)(ti)(ti)(ti)在泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)壳(qiao)处抛出(chu),形(xing)成(cheng)与泵(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)(beng)壳(qiao)同心(xin)(xin)的(de)(de)(de)液环。...
最(zui)新资讯 了解公司的最新活动及(ji)打(da)折(zhe)促销(xiao)
2020 - 04 - 09
中(zhong)(zhong)小(xiao)(xiao)(xiao)型(xing)(xing)(xing)(xing)(xing)无(wu)(wu)油真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)与大中(zhong)(zhong)型(xing)(xing)(xing)(xing)(xing)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)最显着的(de)(de)(de)(de)(de)(de)(de)差别(bie)就是(shi)说(shuo)在(zai)(zai)(zai)身(shen)型(xing)(xing)(xing)(xing)(xing)上的(de)(de)(de)(de)(de)(de)(de)差别(bie),中(zhong)(zhong)小(xiao)(xiao)(xiao)型(xing)(xing)(xing)(xing)(xing)无(wu)(wu)油真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)比(bi)较好运(yun)(yun)送(song)(song),解(jie)(jie)决了(le)难(nan)运(yun)(yun)送(song)(song)的(de)(de)(de)(de)(de)(de)(de)难(nan)题(ti),那么(me)中(zhong)(zhong)小(xiao)(xiao)(xiao)型(xing)(xing)(xing)(xing)(xing)无(wu)(wu)油泵(beng)(beng)到底是(shi)如何的(de)(de)(de)(de)(de)(de)(de)?非(fei)常(chang)容(rong)易出现什么(me)常(chang)见(jian)故障(zhang)?下边(bian)就来了(le)解(jie)(jie)一下。  小(xiao)(xiao)(xiao)型(xing)(xing)(xing)(xing)(xing)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)指的(de)(de)(de)(de)(de)(de)(de)就是(shi)说(shuo)微(wei)型(xing)(xing)(xing)(xing)(xing)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng),由于(yu)体型(xing)(xing)(xing)(xing)(xing)小(xiao)(xiao)(xiao)一般 把微(wei)型(xing)(xing)(xing)(xing)(xing)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)称为(wei)小(xiao)(xiao)(xiao)型(xing)(xing)(xing)(xing)(xing)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)。微(wei)型(xing)(xing)(xing)(xing)(xing)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(即小(xiao)(xiao)(xiao)型(xing)(xing)(xing)(xing)(xing)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng))就是(shi)指:具有一进一出的(de)(de)(de)(de)(de)(de)(de)抽真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)嘴(zui)(zui)、排气(qi)管(guan)嘴(zui)(zui)各(ge)(ge)一个,而且在(zai)(zai)(zai)进口处(chu)可以(yi)不(bu)(bu)断产(chan)生真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)或空(kong)(kong)(kong)气(qi)压力(li);排气(qi)管(guan)嘴(zui)(zui)处(chu)产(chan)生微(wei)正压力(li);工(gong)作中(zhong)(zhong)物质(zhi)关键(jian)为(wei)汽体,容(rong)积精(jing)巧的(de)(de)(de)(de)(de)(de)(de)一种(zhong)仪器设备(bei)(bei)。  小(xiao)(xiao)(xiao)型(xing)(xing)(xing)(xing)(xing)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)机(ji)械故障(zhang)及解(jie)(jie)决方(fang)案(an):  1.罩壳裂(lie)痕裂(lie)开  真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)因锻造(zao)、生产(chan)加(jia)(jia)工(gong)缺点,热应力(li)及过(guo)载运(yun)(yun)作等缘故常(chang)常(chang)造(zao)成(cheng) 构件(jian)出现裂(lie)痕或破裂(lie)状况。基本的(de)(de)(de)(de)(de)(de)(de)修(xiu)补(bu)方(fang)式是(shi)选用(yong)电焊(han)焊(han)接,或是(shi)是(shi)选用(yong)“冷焊(han)”技术性(xing),能(neng)够(gou)防(fang)止焊(han)接应力(li)形(xing)变,另外塬材料(liao)优(you)良的(de)(de)(de)(de)(de)(de)(de)粘合力(li)和(he)(he)抗压强度(du)(du)、耐腐蚀(shi)等综合型(xing)(xing)(xing)(xing)(xing)能(neng),能(neng)够(gou)最大限(xian)度(du)(du)地考虑各(ge)(ge)种(zhong)各(ge)(ge)样(yang)机(ji)器设备(bei)(bei)构件(jian)的(de)(de)(de)(de)(de)(de)(de)应用(yong)规定,进而在(zai)(zai)(zai)最少成(cheng)本费的(de)(de)(de)(de)(de)(de)(de)资(zi)金(jin)(jin)投入(ru)下合理确保生产(chan)制(zhi)造(zao),安全(quan)性(xing)、便(bian)捷、靠谱。  2.泵(beng)(beng)轴滚(gun)(gun)动(dong)轴承位损坏  真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)传动(dong)系(xi)统(tong)部位损坏是(shi)广(guang)泛存在(zai)(zai)(zai)的(de)(de)(de)(de)(de)(de)(de)不(bu)(bu)足,在(zai)(zai)(zai)其中(zhong)(zhong)包含滚(gun)(gun)动(dong)轴承位、带座(zuo)轴承、滚(gun)(gun)动(dong)轴承室(shi)、健槽及外螺纹等部位,传统(tong)式方(fang)式以(yi)焊(han)补(bu)和(he)(he)电刷镀(du)喷漆主导(dao),运(yun)(yun)用(yong)纤维材料(liao)修(xiu)补(bu),能(neng)免拆装,免机(ji)械加(jia)(jia)工(gong)。既无(wu)(wu)焊(han)补(bu)焊(han)接应力(li)危害,修(xiu)补(bu)薄厚都不(bu)(bu)受(shou)到限(xian)制(zhi),另外商品(pin)所具备(bei)(bei)的(de)(de)(de)(de)(de)(de)(de)金(jin)(jin)属(shu)复(fu)合材料(liao)不(bu)(bu)具有的(de)(de)(de)(de)(de)(de)(de)忍(ren)让(rang)性(xing),可消化(hua)吸收机(ji)器设备(bei)(bei)的(de)(de)(de)(de)(de)(de)(de)冲击(ji)性(xing)振(zhen)动(dong),防(fang)止再度(du)(du)损坏的(de)(de)(de)(de)(de)(de)(de)将会,并(bing)大大的(de)(de)(de)(de)(de)(de)(de)增(zeng)加(jia)(jia)...
2018 - 06 - 01
真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)是使(shi)一(yi)(yi)些具有(you)很高(gao)的(de)(de)(de)(de)(de)沸(fei)(fei)点化(hua)合(he)物(wu)(wu)(wu)化(hua)合(he)物(wu)(wu)(wu)沸(fei)(fei)腾,降低化(hua)合(he)物(wu)(wu)(wu)沸(fei)(fei)腾时(shi)的(de)(de)(de)(de)(de)压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li),一(yi)(yi)但压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)降低到化(hua)合(he)物(wu)(wu)(wu)的(de)(de)(de)(de)(de)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(在一(yi)(yi)定的(de)(de)(de)(de)(de)温(wen)度下(xia)(xia)),化(hua)合(he)物(wu)(wu)(wu)就(jiu)(jiu)开始(shi)沸(fei)(fei)腾,蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)作用(yong)就(jiu)(jiu)可(ke)(ke)进行的(de)(de)(de)(de)(de)技术,且以(yi)(yi)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)汽(qi)化(hua)器(qi)的(de)(de)(de)(de)(de)形(xing)式常见(jian)于实(shi)验室。真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)工艺(yi)在石油化(hua)工中使(shi)用(yong)较普遍(bian),与(yu)大(da)(da)气(qi)(qi)(qi)(qi)压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)下(xia)(xia)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)相比,它有(you)许(xu)多特点,使(shi)沸(fei)(fei)点降低;分解聚合(he)物(wu)(wu)(wu)危险(xian)性(xing)小,能够(gou)低温(wen)处(chu)理(li);容(rong)易加(jia)热,热损失小;空(kong)(kong)(kong)(kong)(kong)气(qi)(qi)(qi)(qi)中的(de)(de)(de)(de)(de)氧、水蒸(zheng)(zheng)(zheng)(zheng)气(qi)(qi)(qi)(qi)等成分的(de)(de)(de)(de)(de)影响减小湘对(dui)挥发度大(da)(da);平(ping)衡关系改变(如共沸(fei)(fei)点消失等) 按蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)系统操作压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)的(de)(de)(de)(de)(de)不(bu)同,真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)可(ke)(ke)分为: ①减压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)常见(jian)的(de)(de)(de)(de)(de)减压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)过程,大(da)(da)多在104Pa以(yi)(yi)上的(de)(de)(de)(de)(de)压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)范(fan)围(wei)(wei)内操作。减压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)机理(li)与(yu)常压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)差不(bu)多,常压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)装(zhuang)(zhuang)置(zhi)形(xing)式基(ji)本上可(ke)(ke)用(yong)。 ②粗真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)范(fan)围(wei)(wei)为1.O*104Pa-2.7x102Pa,气(qi)(qi)(qi)(qi)体(ti)(ti)的(de)(de)(de)(de)(de)流(liu)动属粘(zhan)滞态。在这(zhei)个压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)范(fan)围(wei)(wei)内进行蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)操作是容(rong)易实(shi)现的(de)(de)(de)(de)(de)。 ③低真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)范(fan)围(wei)(wei)为2.7*102Pa-1.OPa,此时(shi)气(qi)(qi)(qi)(qi)体(ti)(ti)接近(jin)过渡流(liu)状态,对(dui)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)装(zhuang)(zhuang)置(zhi)的(de)(de)(de)(de)(de)选(xuan)型(xing)、设计、制(zhi)造、安装(zhuang)(zhuang)、操作等都有(you)较为严格(ge)的(de)(de)(de)(de)(de)要(yao)求。 ④准(zhun)分子蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)范(fan)围(wei)(wei)为1.0-1.0*10-2Pa,此时(shi),气(qi)(qi)(qi)(qi)体(ti)(ti)分子的(de)(de)(de)(de)(de)平(ping)均自(zi)由程与(yu)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)尺(chi)寸相近(jin),气(qi)(qi)(qi)(qi)体(ti)(ti)呈过渡流(liu)状态。 ⑤分子蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)操作压(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)力(li)在1.33*10-2Pa以(yi)(yi)下(xia)(xia)。在分子蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)或准(zhun)分子蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)装(zhuang)(zhuang)置(zhi)中,气(qi)(qi)(qi)(qi)体(ti)(ti)的(de)(de)(de)(de)(de)流(liu)动为分子的(de)(de)(de)(de)(de)自(zi)由运动,也(ye)就(jiu)(jiu)是说,可(ke)(ke)以(yi)(yi)忽视该系统中的(de)(de)(de)(de)(de)其它分子的(de)(de)(de)(de)(de)碰撞和干扰,此时(shi),蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)过程受来自(zi)液面的(de)(de)(de)(de)(de)蒸(zheng)(zheng)(zheng)(zheng)发所(suo)支(zhi)配(pei)。 真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)蒸(zheng)(zheng)(zheng)(zheng)馏(liu)(liu)(liu)(liu)(liu)(liu)(liu)装(zhuang)(zhuang)置(zhi): 1、间...
2018 - 08 - 02
雕(diao)刻机专用(yong)(yong)(yong)(yong)真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)选型怎么选呢(ni)?下面(mian)来了解一下几个重点。一、真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)常温作业介(jie)质(zhi)(zhi)(0-50℃),单纯抽(chou)(chou)(chou)水(shui)(shui)(shui)或(huo)(huo)溶液(ye),不(bu)(bu)必(bi)水(shui)(shui)(shui)气两用(yong)(yong)(yong)(yong),但(dan)(dan)(dan)要求(qiu)(qiu)具有(you)(you)(you)(you)(you)自(zi)吸(xi)能(neng)力,并对流量和输出(chu)压(ya)(ya)力有(you)(you)(you)(you)(you)要求(qiu)(qiu)。阐明:抽(chou)(chou)(chou)的(de)作业介(jie)质(zhi)(zhi)是(shi)水(shui)(shui)(shui)、非油(you)性、不(bu)(bu)是(shi)强腐蚀的(de)液(ye)体(ti)等溶液(ye)(不(bu)(bu)能(neng)含有(you)(you)(you)(you)(you)固体(ti)颗(ke)粒(li)等)、有(you)(you)(you)(you)(you)必(bi)要有(you)(you)(you)(you)(you)自(zi)吸(xi)功(gong)用(yong)(yong)(yong)(yong)。二、真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)常温作业介(jie)质(zhi)(zhi)(0-50℃),需(xu)求(qiu)(qiu)抽(chou)(chou)(chou)水(shui)(shui)(shui)或(huo)(huo)气体(ti)(可(ke)能(neng)水(shui)(shui)(shui)气混合(he)或(huo)(huo)空(kong)(kong)(kong)转、干(gan)转场合(he)),垂青体(ti)积、噪音、接连运用(yong)(yong)(yong)(yong)等功(gong)用(yong)(yong)(yong)(yong)。阐明:要求(qiu)(qiu)水(shui)(shui)(shui)气两用(yong)(yong)(yong)(yong)、能(neng)够(gou)长(zhang)时(shi)间干(gan)转、不(bu)(bu)损坏(huai)(huai)泵(beng)(beng)(beng)(beng);24小(xiao)时(shi)接连运转;体(ti)积特(te)别小(xiao)、噪音低,但(dan)(dan)(dan)对流量、压(ya)(ya)力要求(qiu)(qiu)不(bu)(bu)高(gao)。1、用(yong)(yong)(yong)(yong)微(wei)型泵(beng)(beng)(beng)(beng)抽(chou)(chou)(chou)气或(huo)(huo)抽(chou)(chou)(chou)真(zhen)(zhen)空(kong)(kong)(kong),但(dan)(dan)(dan)有(you)(you)(you)(you)(you)时(shi)会(hui)有(you)(you)(you)(you)(you)液(ye)态水(shui)(shui)(shui)进入泵(beng)(beng)(beng)(beng)腔。2、要求(qiu)(qiu)微(wei)型泵(beng)(beng)(beng)(beng)既能(neng)抽(chou)(chou)(chou)气又能(neng)抽(chou)(chou)(chou)水(shui)(shui)(shui)。3、用(yong)(yong)(yong)(yong)微(wei)型泵(beng)(beng)(beng)(beng)抽(chou)(chou)(chou)水(shui)(shui)(shui),但(dan)(dan)(dan)有(you)(you)(you)(you)(you)些(xie)时(shi)候(hou)可(ke)能(neng)泵(beng)(beng)(beng)(beng)没有(you)(you)(you)(you)(you)水(shui)(shui)(shui)可(ke)抽(chou)(chou)(chou),处于“干(gan)转”状况。某些(xie)传统水(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)害(hai)怕“干(gan)转”,“干(gan)转”乃至会(hui)损坏(huai)(huai)泵(beng)(beng)(beng)(beng)。而WKA系列(lie)产(chan)品本(ben)质(zhi)(zhi)上是(shi)一种复(fu)合(he)功(gong)用(yong)(yong)(yong)(yong)泵(beng)(beng)(beng)(beng),它(ta)集成(cheng)了真(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)(beng)(beng)和水(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)的(de)功(gong)用(yong)(yong)(yong)(yong),有(you)(you)(you)(you)(you)人把(ba)它(ta)叫作“真(zhen)(zhen)空(kong)(kong)(kong)水(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)”。因而,在没有(you)(you)(you)(you)(you)水(shui)(shui)(shui)的(de)情况下,它(ta)会(hui)抽(chou)(chou)(chou)真(zhen)(zhen)空(kong)(kong)(kong),有(you)(you)(you)(you)(you)水(shui)(shui)(shui)的(de)时(shi)候(hou)它(ta)就(jiu)抽(chou)(chou)(chou)水(shui)(shui)(shui)。无论(lun)是(shi)抽(chou)(chou)(chou)气状况仍(reng)是(shi)抽(chou)(chou)(chou)水(shui)(shui)(shui)状况,都归于正常作业领域,也就(jiu)无所谓“干(gan)转”损害(hai)。4、主要用(yong)(yong)(yong)(yong)微(wei)型泵(beng)(beng)(beng)(beng)抽(chou)(chou)(chou)水(shui)(shui)(shui),但(dan)(dan)(dan)不(bu)(bu)期(qi)望在抽(chou)(chou)(chou)水(shui)(shui)(shui)前(qian)(qian)靠(kao)人工加“引水(shui)(shui)(shui)”(有(you)(you)(you)(you)(you)些(xie)水(shui)(shui)(shui)泵(beng)(beng)(beng)(beng)在作业前(qian)(qian)需(xu)求(qiu)(qiu)人工参加一些(xie)“引水(shui)(shui)(shui)”,这样泵(beng)(beng)(beng)(beng)才能(neng)把(ba)低处的(de)水(shui)(shui)(shui)抽(chou)(chou)(chou)上来,不(bu)(bu)然泵(beng)(beng)(beng)(beng)无法抽(chou)(chou)(chou)水(shui)(shui)(shui)乃至损坏(huai)(huai)),即期(qi)望泵(beng)(beng)(beng)(beng)有(you)(you)(you)(you)(you)“自(zi)吸(xi)”功(gong)用(yong)(yong)(yong)(yong)。这时(shi)就(jiu)能(neng)够(gou)选PHW、WKA系列(lie)产(chan)品,它(ta)们的(de)利(li)益就(jiu)在于:没有(you)(you)(you)(you)(you)接触到水(shui)(shui)(shui)时(shi),它(ta)就(jiu)抽(chou)(chou)(chou)真(zhen)(zhen)空(kong)(kong)(kong),构成(cheng)真(zhen)(zhen)空(kong)(kong)(kong)后靠(kao)气压(ya)(ya)把(ba)水(shui)(shui)(shui)压(ya)(ya)上来,而后开...
2018 - 10 - 14
水(shui)环(huan)(huan)(huan)式(shi)(shi)真(zhen)(zhen)(zhen)空(kong)泵(beng)的(de)(de)(de)介(jie)质(zhi)温(wen)度(du):(1)水(shui)环(huan)(huan)(huan)式(shi)(shi)真(zhen)(zhen)(zhen)空(kong)泵(beng)泵(beng)体内有必要(yao)补充冷却作(zuo)(zuo)业(ye)液(ye)(ye)(ye),以补偿(chang)运(yun)(yun)用(yong)中随气(qi)(qi)体排出的(de)(de)(de)部分(fen)(fen)液(ye)(ye)(ye)体。作(zuo)(zuo)业(ye)液(ye)(ye)(ye)的(de)(de)(de)作(zuo)(zuo)业(ye)温(wen)度(du)一(yi)般(ban)在(zai)0~40℃之间,或低(di)(di)(di)于沸点(dian)(dian)10℃。但为(wei)确保(bao)用(yong)最(zui)小量(liang)作(zuo)(zuo)业(ye)液(ye)(ye)(ye)到达(da)最(zui)佳作(zuo)(zuo)业(ye)状态,一(yi)般(ban)应(ying)(ying)将其温(wen)度(du)操控在(zai)15℃左(zuo)右,这(zhei)样(yang)才干到达(da)液(ye)(ye)(ye)环(huan)(huan)(huan)式(shi)(shi)真(zhen)(zhen)(zhen)空(kong)泵(beng)的(de)(de)(de)最(zui)佳效果。(2)液(ye)(ye)(ye)环(huan)(huan)(huan)式(shi)(shi)真(zhen)(zhen)(zhen)空(kong)泵(beng)轴密(mi)(mi)封(feng)(feng)液(ye)(ye)(ye)与作(zuo)(zuo)业(ye)液(ye)(ye)(ye)应(ying)(ying)运(yun)(yun)用(yong)相同介(jie)质(zhi),这(zhei)样(yang)能够将轴密(mi)(mi)封(feng)(feng)液(ye)(ye)(ye)回收(shou)至(zhi)作(zuo)(zuo)业(ye)液(ye)(ye)(ye)中,削减作(zuo)(zuo)业(ye)液(ye)(ye)(ye)用(yong)量(liang),一(yi)般(ban)轴密(mi)(mi)封(feng)(feng)液(ye)(ye)(ye)流(liu)量(liang)操控为(wei)0.5dm3/min。(3)液(ye)(ye)(ye)环(huan)(huan)(huan)泵(beng)所抽(chou)(chou)输(shu)的(de)(de)(de)介(jie)质(zhi)有必要(yao)完全符合产品运(yun)(yun)用(yong)要(yao)求(qiu),即不(bu)溶(rong)于作(zuo)(zuo)业(ye)液(ye)(ye)(ye),并且对泵(beng)体无腐蚀。一(yi)般(ban)抽(chou)(chou)输(shu)介(jie)质(zhi)温(wen)度(du)应(ying)(ying)操控在(zai)0~80℃,因而咱们出产中所抽(chou)(chou)输(shu)的(de)(de)(de)窑气(qi)(qi)温(wen)度(du)应(ying)(ying)预(yu)(yu)先降温(wen)至(zhi)80℃以下(xia),方能到达(da)最(zui)佳效果。(4)因为(wei)真(zhen)(zhen)(zhen)空(kong)泵(beng)所抽(chou)(chou)输(shu)介(jie)质(zhi)为(wei)窑气(qi)(qi),含(han)CO2,CO等有毒物质(zhi),为(wei)确保(bao)无渗(shen)漏(lou),清洗中,应(ying)(ying)常常查看填料函是否(fou)到达(da)预(yu)(yu)定(ding)密(mi)(mi)封(feng)(feng)液(ye)(ye)(ye)压(ya)(ya)(ya)力,查看密(mi)(mi)封(feng)(feng)液(ye)(ye)(ye)流(liu)量(liang)或压(ya)(ya)(ya)力指示值,调理阀(fa)门,确保(bao)密(mi)(mi)封(feng)(feng)液(ye)(ye)(ye)压(ya)(ya)(ya)力正常,在(zai)这(zhei)种特别情(qing)况(kuang)下(xia),应(ying)(ying)该挑选(xuan)具有防腐蚀性(xing)的(de)(de)(de)原料,如(ru)304、316、316L不(bu)锈钢原料等等水(shui)环(huan)(huan)(huan)式(shi)(shi)真(zhen)(zhen)(zhen)空(kong)泵(beng)的(de)(de)(de)机(ji)(ji)体温(wen)度(du):一(yi)、水(shui)环(huan)(huan)(huan)式(shi)(shi)真(zhen)(zhen)(zhen)空(kong)泵(beng)机(ji)(ji)体温(wen)度(du)原因剖析1、水(shui)环(huan)(huan)(huan)式(shi)(shi)真(zhen)(zhen)(zhen)空(kong)泵(beng)电机(ji)(ji)功率大(da),作(zuo)(zuo)业(ye)电流(liu)大(da),发(fa)热量(liang)大(da)。2、电扇叶片数较(jiao)少,发(fa)生的(de)(de)(de)风量(liang)小。3、电扇转速低(di)(di)(di),风压(ya)(ya)(ya),风量(liang)小。4、真(zhen)(zhen)(zhen)空(kong)泵(beng)电机(ji)(ji)地点(dian)(dian)母线(xian)电压(ya)(ya)(ya)为(wei)380V,因为(wei)电缆压(ya)(ya)(ya)降及负荷分(fen)(fen)配不(bu)均,电机(ji)(ji)实践(jian)所加电压(ya)(ya)(ya)只要(yao)365V,真(zhen)(zhen)(zhen)空(kong)泵(beng)电压(ya)(ya)(ya)偏低(di)(di)(di)形成运(yun)(yun)转电流(liu)大(da)。5、电动机(ji)(ji)附有尘(chen)埃、油污(wu),降低(di)(di)(di)了...
2018 - 12 - 14
一(yi)(yi)、高(gao)温(wen)(wen)(wen)油(you)(you)泵(beng)(beng)(beng)应用于如下行(xing)业(ye)工(gong)(gong)艺 :•塑胶(jiao)工(gong)(gong)业(ye)和(he)铸造工(gong)(gong)业(ye)中(zhong)的(de)(de)模具温(wen)(wen)(wen)度(du)(du)(du)(du)控制设备(bei) •大(da)(da)(da)型油(you)(you)炸(zha)、烘(hong)培设备(bei)所(suo)使用的(de)(de)高(gao)温(wen)(wen)(wen)食用油(you)(you)和(he)食品、动(dong)物饲(si)料(liao)加(jia)热(re)干燥(zao) •橡塑胶(jiao)皮革工(gong)(gong)业(ye)之滚轮压合(he)和(he)熔(rong)炉的(de)(de)加(jia)热(re) •染整工(gong)(gong)业(ye)中(zhong)染剂桶槽(cao)加(jia)热(re) •钻油(you)(you)平台及油(you)(you)船槽(cao)内原油(you)(you)加(jia)热(re) •造纸工(gong)(gong)业(ye)中(zhong)的(de)(de)加(jia)热(re) 二、高(gao)温(wen)(wen)(wen)油(you)(you)泵(beng)(beng)(beng)选型几个重(zhong)要(yao)参数:1、流(liu)(liu)(liu)(liu)量是选油(you)(you)泵(beng)(beng)(beng)的(de)(de)重(zhong)要(yao)性(xing)能(neng)数据之一(yi)(yi),它直(zhi)接关(guan)系到整个装(zhuang)置的(de)(de)的(de)(de)生产能(neng)力和(he)输(shu)送能(neng)力。如设计院工(gong)(gong)艺设计中(zhong)能(neng)算(suan)出(chu)泵(beng)(beng)(beng)正(zheng)常、最(zui)(zui)小、最(zui)(zui)大(da)(da)(da)三种流(liu)(liu)(liu)(liu)量。选择(ze)泵(beng)(beng)(beng)时,以最(zui)(zui)大(da)(da)(da)流(liu)(liu)(liu)(liu)量为(wei)依(yi)据,兼顾正(zheng)常流(liu)(liu)(liu)(liu)量,在没(mei)有(you)最(zui)(zui)大(da)(da)(da)流(liu)(liu)(liu)(liu)量时,通常可取正(zheng)常流(liu)(liu)(liu)(liu)量的(de)(de)1.1倍作(zuo)为(wei)最(zui)(zui)大(da)(da)(da)流(liu)(liu)(liu)(liu)量。2、油(you)(you)泵(beng)(beng)(beng)的(de)(de)温(wen)(wen)(wen)度(du)(du)(du)(du),要(yao)选择(ze)操(cao)作(zuo)流(liu)(liu)(liu)(liu)体(ti)的(de)(de)最(zui)(zui)大(da)(da)(da)要(yao)求(qiu)的(de)(de)温(wen)(wen)(wen)度(du)(du)(du)(du),比方流(liu)(liu)(liu)(liu)体(ti)最(zui)(zui)大(da)(da)(da)的(de)(de)温(wen)(wen)(wen)度(du)(du)(du)(du)要(yao)求(qiu)是350,但泵(beng)(beng)(beng)的(de)(de)实际最(zui)(zui)大(da)(da)(da)操(cao)作(zuo)温(wen)(wen)(wen)度(du)(du)(du)(du)却是320,那便会造成漏油(you)(you)或(huo)者(zhe)泵(beng)(beng)(beng)直(zhi)接坏(huai)掉不能(neng)运(yun)行(xing),所(suo)以一(yi)(yi)定要(yao)选择(ze)合(he)适的(de)(de)或(huo)者(zhe)大(da)(da)(da)于最(zui)(zui)大(da)(da)(da)的(de)(de)操(cao)作(zuo)流(liu)(liu)(liu)(liu)体(ti)温(wen)(wen)(wen)度(du)(du)(du)(du)的(de)(de)泵(beng)(beng)(beng)。3、装(zhuang)置系统所(suo)需的(de)(de)扬(yang)程(cheng)是选泵(beng)(beng)(beng)的(de)(de)又一(yi)(yi)重(zhong)要(yao)性(xing)能(neng)数据,一(yi)(yi)般要(yao)用放(fang)大(da)(da)(da)5%—10%余(yu)量后扬(yang)程(cheng)来选型。4、装(zhuang)置系统的(de)(de)管路布置条(tiao)件指的(de)(de)是送液(ye)(ye)高(gao)度(du)(du)(du)(du)送液(ye)(ye)距离送液(ye)(ye)走向,吸如侧(ce)最(zui)(zui)低液(ye)(ye)面,排出(chu)侧(ce)最(zui)(zui)高(gao)液(ye)(ye)面等一(yi)(yi)些数据和(he)管道规(gui)格及其(qi)长度(du)(du)(du)(du)、材料(liao)、管件规(gui)格、数量等,以便进(jin)行(xing)系梳扬(yang)程(cheng)计算(suan)和(he)汽蚀余(yu)量的(de)(de)校核。5、液(ye)(ye)体(ti)性(xing)质,包括液(ye)(ye)体(ti)介质名称,物理(li)性(xing)质,化学性(xing)质和(he)其(qi)它性(xing)质,物理(li)性(xing)质有(you)温(wen)(wen)(wen)度(du)(du)(du)(du)c密度(du)(du)(du)(du)d,粘度(du)(du)(du)(du)u,介质中(zhong)固体(ti)颗粒直(zhi)径和(he)气体(ti)的(de)(de)含量等,这涉(she)及到系统的(de)(de)扬(yang)程(cheng),...
2019 - 04 - 03
真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)泵的(de)(de)(de)参数(shu)知识大全,今天总结了(le)一(yi)下(xia),跟(gen)着(zhe)一(yi)起来了(le)解学(xue)习一(yi)下(xia)吧1、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)区(qu)域(yu)划分2、长度(du):公(gong)制(zhi)(zhi)(zhi)-英(ying)(ying)制(zhi)(zhi)(zhi)对(dui)照(zhao)(zhao)表(biao)(biao)(biao)3、重量:公(gong)斤-磅(bang)(bang)-央(yang)士(shi)(shi)对(dui)照(zhao)(zhao)表(biao)(biao)(biao)4、各(ge)种真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)计(ji)及(ji)规管对(dui)照(zhao)(zhao)表(biao)(biao)(biao)5、绝对(dui)温度(du)、摄(she)氏(shi)、华(hua)氏(shi)温度(du)对(dui)照(zhao)(zhao)表(biao)(biao)(biao)6、抽气(qi)速(su)率(lv)(lv)单(dan)位(wei)(wei)换算(suan)表(biao)(biao)(biao)7、各(ge)种水(shui)(shui)的(de)(de)(de)电阻率(lv)(lv)(欧姆)8、20℃空(kong)(kong)气(qi)在不同(tong)(tong)压(ya)(ya)强(qiang)(qiang)(qiang)下(xia)的(de)(de)(de)分子(zi)平均自由程9、常用压(ya)(ya)强(qiang)(qiang)(qiang)单(dan)位(wei)(wei)换算(suan)表(biao)(biao)(biao)10、不同(tong)(tong)压(ya)(ya)强(qiang)(qiang)(qiang)下(xia)空(kong)(kong)气(qi)分子(zi)密度(du)11、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)油(you)脂的(de)(de)(de)主要性能12、力单(dan)位(wei)(wei)的(de)(de)(de)换算(suan)13、功(gong)率(lv)(lv)单(dan)位(wei)(wei)换算(suan)14、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)封膏特性15、各(ge)种橡胶(jiao)特性表(biao)(biao)(biao)16、面积单(dan)位(wei)(wei)换算(suan)17、容积单(dan)位(wei)(wei)换算(suan)18、1号真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)机械泵油(you)的(de)(de)(de)主要性能指(zhi)标19、国(guo)产扩散(san)泵油(you)性能指(zhi)标20、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)泵的(de)(de)(de)种类及(ji)其工作范围21、水(shui)(shui)在各(ge)种温度(du)下(xia)的(de)(de)(de)饱合蒸气(qi)压(ya)(ya)  1、真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)区(qu)域(yu)划分真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)区(qu)域(yu)压(ya)(ya)强(qiang)(qiang)(qiang)范围托(Torr)帕(Pa)低真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)760~10101325~1333中(zhong)真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)10~10-31333~1.33×10-1高真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)10-3~10-81.33×10-1~10-6超高真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)10-8~10-1210-6~10-10极高真(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)<10-12<10-10 2、重量:公(gong)斤-磅(bang)(bang)-央(yang)士(shi)(shi)对(dui)照(zhao)(zhao)表(biao)(biao)(biao)单(dan)位(wei)(wei)公(gong)斤(kg)英(ying)(ying)磅(bang)(bang)(Ib)央(yang)士(shi)(shi)(oz)1公(gong)斤12.235.271磅(bang)(bang)0.451161央(yang)士(shi)(shi)0.030.0613、长度(du):公(gong)制(zhi)(zhi)(zhi)-英(ying)(ying)制(zhi)(zhi)(zhi)对(dui)照(zhao)(zhao)表(biao)(biao)(biao)单(dan)位(wei)(wei)米(m)英(ying)(ying)尺(ft)英(ying)(ying)寸(in)1米(1m)13.2839.371英(ying)(ying)尺(1ft)0.30518.331英(ying)(ying)寸0.0254121   ...
2019 - 06 - 27
一(yi)、 设(she)(she)(she)计真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)机组的(de)(de)(de)(de)(de)条件  1、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)的(de)(de)(de)(de)(de)已知参数(shu),  如放气(qi)的(de)(de)(de)(de)(de)表(biao)面(mian)积和(he)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)的(de)(de)(de)(de)(de)体(ti)(ti)积,所需的(de)(de)(de)(de)(de)最大吸气(qi)量(liang)和(he)极(ji)限(xian)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)度(du),预抽时(shi)间和(he)达(da)到(dao)极(ji)限(xian)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)的(de)(de)(de)(de)(de)抽气(qi)时(shi)间等.  2、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)内的(de)(de)(de)(de)(de)气(qi)体(ti)(ti)源情况,  真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)内的(de)(de)(de)(de)(de)大气(qi),真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)内表(biao)面(mian)放气(qi),真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)的(de)(de)(de)(de)(de)动密封处、静(jing)密封处的(de)(de)(de)(de)(de)漏气(qi),壳(qiao)体(ti)(ti)渗透气(qi)体(ti)(ti),被处理材料(liao)放出的(de)(de)(de)(de)(de)气(qi)体(ti)(ti),工艺过(guo)程需要(yao)而引入的(de)(de)(de)(de)(de)气(qi)体(ti)(ti),  3、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)内的(de)(de)(de)(de)(de)特殊要(yao)求(qiu),  工艺过(guo)程中是(shi)否(fou)产生尘灰、金属(shu)喷溅、腐蚀性气(qi)体(ti)(ti)、水蒸(zheng)气(qi)等,真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)内是(shi)否(fou)要(yao)求(qiu)无油(you)、无振(zhen)动等。    二、真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)机组设(she)(she)(she)计计算(suan)的(de)(de)(de)(de)(de)一(yi)般程序  A.真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)内总(zong)放气(qi)量(liang)的(de)(de)(de)(de)(de)计算(suan);  B.确定真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)室(shi)(shi)(shi)的(de)(de)(de)(de)(de)有效(xiao)抽速;  C.粗配(pei)(pei)主泵(beng)(beng)和(he)粗配(pei)(pei)前级真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng);  D.根据要(yao)求(qiu)选择(ze)阀门、捕集器、除(chu)尘器等真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)元件;  E.绘制真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)统装(zhuang)配(pei)(pei)草图(tu)(tu),确定各部分的(de)(de)(de)(de)(de)尺寸;  F.梢确(复核)计算(suan)各真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)的(de)(de)(de)(de)(de)参数(shu),如果(guo)粗选的(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)泵(beng)(beng)达(da)不(bu)到(dao)要(yao)求(qiu),就(jiu)需要(yao)重新选泵(beng)(beng)和(he)配(pei)(pei)泵(beng)(beng),直到(dao)满足各参数(shu)要(yao)求(qiu)为(wei)止;  G.绘制真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)统装(zhuang)配(pei)(pei)图(tu)(tu);  H.绘制零件图(tu)(tu),绘制施工图(tu)(tu)。  这八条设(she)(she)(she)计计算(suan)步骤是(shi)非标(biao)准设(she)(she)(she)计不(bu)可缺少的(de)(de)(de)(de)(de)。随(sui)着真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)设(she)(she)(she)备的(de)(de)(de)(de)(de)不(bu)断(duan)发展,随(sui)着各种新型(xing)的(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)机组的(de)(de)(de)(de)(de)不(bu)断(duan)出现(xian),真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)统设(she)(she)(she)计过(guo)程会(hui)不(bu)断(duan)简化.现(xian)在已有定型(xing)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)机组,若可以(yi)直接选择(ze)定型(xing)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)机组来获(huo)得所需真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)统,便可省(sheng)去麻烦的(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)系(xi)统设(she)(she)(she)计。
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螺杆真空(kong)泵节能(neng)减排

日(ri)期: 2021-06-03
来源:
浏览次(ci)数: 3

  随着人(ren)与(yu)自然的关系越来越融(rong)洽(qia),节(jie)能(neng)减排的理念(nian)已(yi)经深入人(ren)心。使用螺杆真空(kong)泵(beng)也必须遵(zun)循这个原则,掌握一定的节(jie)能(neng)技巧——这些(xie)措施可以降低企业开支。

螺杆真空泵节能减排

  1、螺杆真空(kong)泵倾斜安装,减少(shao)弯头或(huo)旋转蜗壳,使出水(shui)(shui)口面向(xiang)水(shui)(shui)池。

  2、缩短管道(dao):拆(chai)除(chu)1米钢管,10小时(shi)可节约(yue)柴油0.21公(gong)斤(jin)。

  3、加大(da)出(chu)水管(guan)(guan)(guan)直径,如(ru)将(jiang)4米长10厘米出(chu)水软管(guan)(guan)(guan)换成15厘米管(guan)(guan)(guan),10小时可节(jie)油0.5公斤。

  4、当(dang)水可以(yi)保持干净时,可以(yi)拆下(xia)过滤器。

  5、更(geng)换节流孔(kong)环,调整轴(zhou)向间隙(xi),防止叶轮(lun)节流孔(kong)环与轴(zhou)向间隙(xi)不正确。使用时应(ying)根据螺杆真(zhen)空泵(beng)的(de)出厂(chang)说明书进(jin)行调整。这里需要(yao)注意要(yao)求(qiu),避(bi)免操作不当造成设备损坏。

  6、及时排除设备管路堵塞:在进水管、叶轮或(huo)旁(pang)通壳流道内(nei)残留异物,会减少(shao)出水量。

  7、避免螺(luo)杆真(zhen)空(kong)泵进风口和(he)进风口,出水量会明显减少。需(xu)要对所(suo)有密封部(bu)位进行检查,出现问(wen)题(ti)需(xu)要及时解(jie)决(jue)。

  8、联轴(zhou)器直接驱(qu)动(dong)代(dai)替平带(dai),提高驱(qu)动(dong)效率。

  9、取消“高(gao)射炮”式出水口,增加能耗。

  为(wei)了让螺杆真(zhen)空泵在使用过(guo)程中有(you)更(geng)好(hao)的(de)节(jie)能效果,我(wo)们(men)需要(yao)定期进(jin)行(xing)清(qing)洁和维护,防止(zhi)杂质长时间积聚(ju)在设备中,产生负荷。此外,必须(xu)有(you)可能发生浪费的(de)地方,进(jin)行(xing)改(gai)进(jin)。


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螺(luo)杆(gan)(gan)三罗茨真(zhen)(zhen)(zhen)空(kong)(kong)机组_罗茨螺(luo)杆(gan)(gan)真(zhen)(zhen)(zhen)空(kong)(kong)系(xi)统(tong)设计(ji)的工(gong)(gong)作原理:打开冷(leng)却水、冷(leng)冻液供应(ying)阀门,确保冷(leng)凝器(qi)(qi)和回收器(qi)(qi)工(gong)(gong)作条件具备(bei)后(hou)(hou),先启动螺(luo)杆(gan)(gan)真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng),在系(xi)统(tong)内(nei)建(jian)立真(zhen)(zhen)(zhen)空(kong)(kong);打开被(bei)抽反应(ying)釜阀门,被(bei)抽气体(ti)经(jing)(jing)反应(ying)釜本(ben)身自动的冷(leng)凝器(qi)(qi)和回收分(fen)离后(hou)(hou),到达真(zhen)(zhen)(zhen)空(kong)(kong)系(xi)统(tong)的前置综合处理器(qi)(qi),再(zai)进行充(chong)分(fen)冷(leng)凝、捕(bu)集、分(fen)离、压缩后(hou)(hou),被(bei)螺(luo)杆(gan)(gan)真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)抽出(chu);被(bei)抽气体(ti)排出(chu)螺(luo)杆(gan)(gan)真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)后(hou)(hou),再(zai)经(jing)(jing)过排气冷(leng)凝、分(fen)离、回收后(hou)(hou)进一步降低排放(fang)气体(ti)中的可凝气体(ti)含量,环保节能的真(zhen)(zhen)(zhen)空(kong)(kong)机组解决方案。主要配置:罗茨真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)、螺(luo)杆(gan)(gan)真(zhen)(zhen)(zhen)空(kong)(kong)泵(beng)、冷(leng)凝器(qi)(qi)、热(re)交(jiao)换器(qi)(qi)
发(fa)布时间: 2021 - 04 - 22
DP型无(wu)(wu)油等(deng)螺(luo)(luo)距螺(luo)(luo)杆(gan)真(zhen)空泵(beng)(beng)(beng)(beng)(beng)产品(pin)概况(kuang)干式(shi)螺(luo)(luo)杆(gan)真(zhen)空泵(beng)(beng)(beng)(beng)(beng),是利用(yong)(yong)(yong)(yong)(yong)一对(dui)旋向相反的螺(luo)(luo)杆(gan)转子(zi),在泵(beng)(beng)(beng)(beng)(beng)壳中作同步(bu)高(gao)速(su)啮合(he)旋转运(yun)动(dong),产生吸气(qi)(qi)(qi)和排(pai)(pai)气(qi)(qi)(qi)作用(yong)(yong)(yong)(yong)(yong)的抽气(qi)(qi)(qi)设(she)备。采用(yong)(yong)(yong)(yong)(yong)免(mian)维(wei)护(hu)(hu)设(she)计技术解(jie)决了真(zhen)空泵(beng)(beng)(beng)(beng)(beng)维(wei)护(hu)(hu)麻烦和费(fei)用(yong)(yong)(yong)(yong)(yong)高(gao)的问(wen)题(ti)。真(zhen)空泵(beng)(beng)(beng)(beng)(beng)工作腔(qiang)内无(wu)(wu)需润滑(hua)油和密封(feng)液(ye),可(ke)(ke)(ke)回收各类可(ke)(ke)(ke)凝性(xing)气(qi)(qi)(qi)体,解(jie)决了蒸汽(qi)喷射(she)泵(beng)(beng)(beng)(beng)(beng)、滑(hua)阀泵(beng)(beng)(beng)(beng)(beng)、旋片泵(beng)(beng)(beng)(beng)(beng)、液(ye)环(huan)(huan)泵(beng)(beng)(beng)(beng)(beng)等(deng)可(ke)(ke)(ke)能(neng)对(dui)系统介质造(zao)成的污(wu)染和对(dui)环(huan)(huan)境(jing)造(zao)成的污(wu)染问(wen)题(ti),同时回收物还(hai)能(neng)创造(zao)附加(jia)经(jing)济效益(yi)。主要(yao)特(te)点•抽速(su)范围广,可(ke)(ke)(ke)直排(pai)(pai)大气(qi)(qi)(qi),单(dan)泵(beng)(beng)(beng)(beng)(beng)使(shi)用(yong)(yong)(yong)(yong)(yong)即可(ke)(ke)(ke)达到多级串(chuan)联的效果。单(dan)级设(she)计可(ke)(ke)(ke)以获得(de)5PA的真(zhen)空度(du)。•可(ke)(ke)(ke)采用(yong)(yong)(yong)(yong)(yong)氮气(qi)(qi)(qi)吹扫,清(qing)洗维(wei)护(hu)(hu)操(cao)作简单(dan),维(wei)修方便。•螺(luo)(luo)杆(gan)材质为整体式(shi)球墨铸(zhu)铁强度(du)高(gao)、性(xing)能(neng)稳定。•螺(luo)(luo)杆(gan)间相互不(bu)接触无(wu)(wu)摩擦,不(bu)需要(yao)润滑(hua)油脂(zhi),无(wu)(wu)油污(wu)反流(liu),无(wu)(wu)废(fei)(fei)气(qi)(qi)(qi)废(fei)(fei)液(ye)排(pai)(pai)放,清(qing)洁环(huan)(huan)保(bao)能(neng)耗低(di)(di)。•泵(beng)(beng)(beng)(beng)(beng)腔(qiang)内部及零件可(ke)(ke)(ke)根据需要(yao)进行(xing)表面防腐处理,适(shi)用(yong)(yong)(yong)(yong)(yong)于化(hua)工制药行(xing)业的特(te)殊要(yao)求。•螺(luo)(luo)杆(gan)经(jing)过精细动(dong)平(ping)衡校正,运(yun)转平(ping)稳,噪声低(di)(di)、振动(dong)小(xiao),使(shi)用(yong)(yong)(yong)(yong)(yong)寿命长(zhang)。
发布时间: 2021 - 03 - 24
DP型无(wu)油(you)变(bian)螺(luo)(luo)距(ju)螺(luo)(luo)杆(gan)(gan)真(zhen)空(kong)(kong)泵(beng)(beng)产品(pin)概(gai)况VDP型无(wu)油(you)干(gan)式变(bian)螺(luo)(luo)距(ju)螺(luo)(luo)杆(gan)(gan)真(zhen)空(kong)(kong)泵(beng)(beng)具有两个反(fan)向旋转(zhuan)(zhuan)变(bian)螺(luo)(luo)距(ju)螺(luo)(luo)杆(gan)(gan)转(zhuan)(zhuan)子(zi)(zi)。其(qi)在泵(beng)(beng)壳中作同步高速啮合运(yun)动(dong)(dong),完(wan)成(cheng)进排气(qi)工作循环(huan)(huan)。变(bian)螺(luo)(luo)距(ju)螺(luo)(luo)杆(gan)(gan)相比普(pu)通(tong)螺(luo)(luo)杆(gan)(gan)具有更佳的(de)压缩和抽(chou)速效率(lv),排气(qi)温度(du)更低(di)、噪声(sheng)更小、能(neng)耗更少。其(qi)泵(beng)(beng)腔无(wu)油(you)运(yun)转(zhuan)(zhuan)清洁(jie)环(huan)(huan)保,是油(you)封式、喷(pen)射式、液环(huan)(huan)式真(zhen)空(kong)(kong)泵(beng)(beng)的(de)最佳换代产品(pin)。变(bian)螺(luo)(luo)杆(gan)(gan)转(zhuan)(zhuan)子(zi)(zi)可(ke)(ke)(ke)实现客户定制化(hua)设计与(yu)制造,最佳满足客户需求。主要(yao)特点•与(yu)等螺(luo)(luo)距(ju)螺(luo)(luo)杆(gan)(gan)泵(beng)(beng)相比,抽(chou)气(qi)效率(lv)更高,能(neng)耗更低(di)。•抽(chou)速范围(wei)广,可(ke)(ke)(ke)直排大(da)气(qi),单泵(beng)(beng)使(shi)用即可(ke)(ke)(ke)达到多级(ji)串(chuan)联的(de)效果。单级(ji)设计可(ke)(ke)(ke)以获得5PA的(de)真(zhen)空(kong)(kong)度(du)。•可(ke)(ke)(ke)采(cai)用氦气(qi)吹扫,清洗维(wei)护操作简单,维(wei)修方(fang)便(bian)。•螺(luo)(luo)杆(gan)(gan)材质为整体式球墨铸铁强度(du)高、性(xing)能(neng)稳(wen)定。•螺(luo)(luo)杆(gan)(gan)间相互不接触无(wu)摩擦,不需要(yao)润(run)滑(hua)油(you)脂,无(wu)油(you)污反(fan)流,无(wu)废(fei)气(qi)废(fei)液排放,清洁(jie)环(huan)(huan)保能(neng)耗低(di)。•泵(beng)(beng)腔内部及零件可(ke)(ke)(ke)根据需要(yao)进行表面防腐处理,适(shi)用于化(hua)工制药(yao)行业(ye)的(de)特殊要(yao)求。•螺(luo)(luo)杆(gan)(gan)经(jing)过精细(xi)动(dong)(dong)平衡校正,运(yun)转(zhuan)(zhuan)平稳(wen),噪声(sheng)低(di)、振动(dong)(dong)小,使(shi)用寿命长。
医院中(zhong)央(yang)真(zhen)空(kong)(kong)系统(tong)(tong)得益于我们十多年的(de)真(zhen)空(kong)(kong)泵(beng)制(zhi)作经验(yan),设计出DZS系列(lie)中(zhong)央(yang)真(zhen)空(kong)(kong)系统(tong)(tong)。按照EN ISO 7396-1标准(zhun)进(jin)行(xing)制(zhi)造,这些系统(tong)(tong)符合医疗组(zu)织要求,例如(ru)医院、诊所、家庭护(hu)理,分(fen)析实验(yan)室等等。DZS系列(lie)泵(beng)组(zu)主要由3泵(beng)系统(tong)(tong)构成,以保证在(zai)突发情况下仍能连续(xu)工作;真(zhen)空(kong)(kong)罐上配(pei)备有(you)真(zhen)空(kong)(kong)开关(guan)控制(zhi)面板(ban),使用触摸屏系统(tong)(tong),可对整个(ge)泵(beng)组(zu)的(de)动作进(jin)行(xing)检查和(he)编排。根(gen)据EN ISO 7396-1标准(zhun),配(pei)备抗菌过(guo)滤器;DZS爪泵(beng)可以作为成套系统(tong)(tong)提(ti)供,或者作为独(du)立元件整合到已有(you)的(de)真(zhen)空(kong)(kong)泵(beng)组(zu)上。
发(fa)布时间: 2021 - 03 - 24
DZS干(gan)式爪(zhua)(zhua)泵(beng)真(zhen)空(kong)(kong)机组 医(yi)疗(liao)负压系统,在(zai)医(yi)疗(liao)行业真(zhen)空(kong)(kong)应用(yong)(yong)随着国家对排放物(wu)的控制和节能减排的倡导,爪(zhua)(zhua)式泵(beng)已经渐(jian)渐(jian)取代水(shui)(shui)环(huan)(huan)真(zhen)空(kong)(kong)泵(beng)在(zai)医(yi)疗(liao)负压系统中的应用(yong)(yong),它的特(te)点(dian)是:1、爪(zhua)(zhua)式泵(beng)应用(yong)(yong)于(yu)医(yi)疗(liao)行业抽(chou)真(zhen)空(kong)(kong)是相当理想的。爪(zhua)(zhua)式泵(beng)的干(gan)式运(yun)行原理意味着其(qi)不会产生任(ren)何(he)污(wu)染性排出物(wu)。 避(bi)免了水(shui)(shui)环(huan)(huan)真(zhen)空(kong)(kong)泵(beng)中水(shui)(shui)的二次(ci)污(wu)染问(wen)题;2、爪(zhua)(zhua)式泵(beng)由于(yu)具(ju)有无油增压腔体,使(shi)用(yong)(yong)非(fei)常安全(quan)。适合抽(chou)放麻醉气体;3、效率高(gao),比(bi)水(shui)(shui)环(huan)(huan)泵(beng)效率高(gao)50%以上,装配功率小;4、爪(zhua)(zhua)式泵(beng)干(gan)式运(yun)行,无磨损,抽(chou)气工作(zuo)效率极高(gao)且几乎免维护;5、爪(zhua)(zhua)式泵(beng)获得持续(xu)真(zhen)空(kong)(kong)或压力的工作(zuo)电流频率为(wei)20-60Hz;6、可实行变频控制,可24H连续(xu)运(yun)行;避(bi)免了水(shui)(shui)环(huan)(huan)真(zhen)空(kong)(kong)泵(beng)连续(xu)运(yun)行时,水(shui)(shui)温升高(gao),效率下降的缺陷;7、全(quan)进口主机标准产品,满(man)足个性化(hua)配置;深圳恒才将根(gen)据每个客户的不同(tong)需求进行不同(tong)的个性化(hua)选配,更符(fu)合你的贴身要求;8、爪(zhua)(zhua)式泵(beng)使(shi)用(yong)(yong)旋爪(zhua)(zhua)技术产生真(zhen)空(kong)(kong)和压力。
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