東莞市銳鑫(xin)機電有(you)限(xian)公司
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B棟401
具體參數
隨著現代工(gong)業的(de)(de)(de)(de)興起(qi),以混(hun)(hun)凝(ning)土為主(zhu)材料的(de)(de)(de)(de)建(jian)設(she)方式(shi)已經成(cheng)為了(le)建(jian)筑業施(shi)(shi)工(gong)的(de)(de)(de)(de)主(zhu)要構造(zao)之一(yi),在各種(zhong)(zhong)工(gong)程施(shi)(shi)工(gong)建(jian)設(she)中占據了(le)很大的(de)(de)(de)(de)比例,使得混(hun)(hun)凝(ning)土機(ji)械的(de)(de)(de)(de)發展經久不衰,且(qie)有越(yue)演越(yue)烈的(de)(de)(de)(de)形勢。拖式(shi)混(hun)(hun)凝(ning)土泵(beng),簡稱拖泵(beng),是各種(zhong)(zhong)混(hun)(hun)凝(ning)土機(ji)械中的(de)(de)(de)(de)一(yi)種(zhong)(zhong),用于混(hun)(hun)凝(ning)土施(shi)(shi)工(gong)中的(de)(de)(de)(de)輸送(song)和澆注工(gong)作。
拖泵分類選型
37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(目前國內標準混凝土(tu)泵,37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)以下為細石砂漿泵)、45千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(柴油)、132千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(柴油)、174千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(柴油)等。
選擇多大電機(ji)(ji)混凝(ning)土泵,首先要(yao)(yao)考慮(lv)變壓器容量,其次(ci)考慮(lv)距離混凝(ning)土泵的遠近(jin)和線(xian)徑(jing)大小,以免壓降過(guo)大造成(cheng)電流增(zeng)高或跳閘停機(ji)(ji),過(guo)大功率造成(cheng)成(cheng)本增(zeng)加和使(shi)用不便。電機(ji)(ji)過(guo)小,同時(shi)也(ye)滿足(zu)不了工程需要(yao)(yao)。
混(hun)凝土(tu)輸(shu)送(song)(song)(song)泵(beng)功率、混(hun)凝土(tu)輸(shu)送(song)(song)(song)泵(beng)出口壓力(li)、混(hun)凝土(tu)輸(shu)送(song)(song)(song)泵(beng)輸(shu)送(song)(song)(song)量之(zhi)間(jian)的關系
一臺混(hun)凝(ning)土輸送(song)(song)泵的電機(ji)功率是決定(ding)出口(kou)壓力和輸送(song)(song)方量的前提(ti)條件,在電機(ji)功率一定(ding)的情(qing)況(kuang)下,壓力的升高必將使(shi)輸送(song)(song)量降低;相反(fan),降低出口(kou)壓力,將會(hui)使(shi)輸送(song)(song)量增加。
為(wei)了保證混(hun)凝土(tu)輸送(song)泵(beng)既要有較大(da)輸送(song)量,又能有一定的(de)出(chu)(chu)口壓力和與之相(xiang)匹配的(de)經濟(ji)功(gong)(gong)率(lv),在混(hun)凝土(tu)輸送(song)泵(beng)的(de)設計(ji)中,大(da)都采用了恒(heng)功(gong)(gong)率(lv)柱塞泵(beng);即恒(heng)功(gong)(gong)率(lv)值選定后,當出(chu)(chu)口壓力升高時,油泵(beng)輸出(chu)(chu)排量會自動(dong)降低,達到(dao)與功(gong)(gong)率(lv)設計(ji)相(xiang)對應的(de)值;如果既要達到(dao)出(chu)(chu)口壓力高,又想(xiang)得(de)到(dao)輸送(song)量大(da)的(de)目的(de)。惟一的(de)途徑就(jiu)是增加(jia)電機功(gong)(gong)率(lv)。
因此,在(zai)國(guo)家新標(biao)準中(zhong),引(yin)用了混凝土輸送泵(beng)的(de)(de)(de)能力指數概念(以(yi)MPa·m3/h為度量(liang)單位);即(ji)混凝土輸送泵(beng)的(de)(de)(de)實際出(chu)(chu)口壓力與每小(xiao)時實際輸送量(liang)之乘積,該值(zhi)越大(da),其(qi)能力指數也越大(da),電(dian)機的(de)(de)(de)功(gong)(gong)率也將越大(da),由此實現大(da)排量(liang)、高揚程的(de)(de)(de)目(mu)的(de)(de)(de)。科(ke)尼(ni)樂公司在(zai)設計(ji)時,還(huan)采用了高低壓切換的(de)(de)(de)功(gong)(gong)能設計(ji),以(yi)滿足不同的(de)(de)(de)施工要(yao)求,在(zai)經(jing)濟狀態下,又能產(chan)生(sheng)較大(da)的(de)(de)(de)輸送量(liang),或者以(yi)相同的(de)(de)(de)電(dian)機功(gong)(gong)率,產(chan)生(sheng)較高的(de)(de)(de)出(chu)(chu)口壓力。