具體參數

隨(sui)著現代工(gong)(gong)業的(de)興(xing)起，以混(hun)凝(ning)(ning)土(tu)為主(zhu)材料的(de)建(jian)設方式已經成(cheng)為了建(jian)筑業施工(gong)(gong)的(de)主(zhu)要構(gou)造之一(yi)，在(zai)各種(zhong)工(gong)(gong)程(cheng)施工(gong)(gong)建(jian)設中(zhong)占據了很大(da)的(de)比例(li)，使得混(hun)凝(ning)(ning)土(tu)機(ji)械的(de)發展(zhan)經久不衰，且有越演越烈的(de)形(xing)勢。拖式混(hun)凝(ning)(ning)土(tu)泵，簡稱拖泵，是各種(zhong)混(hun)凝(ning)(ning)土(tu)機(ji)械中(zhong)的(de)一(yi)種(zhong)，用于混(hun)凝(ning)(ning)土(tu)施工(gong)(gong)中(zhong)的(de)輸送和(he)澆注工(gong)(gong)作。

拖泵分類選型

37千(qian)(qian)(qian)(qian)瓦(wa)(wa)（目前國內標(biao)準混凝土泵，37千(qian)(qian)(qian)(qian)瓦(wa)(wa)以下為細石砂漿(jiang)泵）、45千(qian)(qian)(qian)(qian)瓦(wa)(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(wa)（柴油(you)(you)(you)）、132千(qian)(qian)(qian)(qian)瓦(wa)(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(wa)（柴油(you)(you)(you)）、174千(qian)(qian)(qian)(qian)瓦(wa)(wa)（柴油(you)(you)(you)）等。

選(xuan)擇多大(da)(da)電(dian)機(ji)混凝土(tu)泵(beng)，首先要考(kao)慮(lv)變(bian)壓器容量，其次考(kao)慮(lv)距(ju)離混凝土(tu)泵(beng)的遠(yuan)近和(he)線徑大(da)(da)小，以免壓降過(guo)大(da)(da)造成電(dian)流增高或跳閘停機(ji)，過(guo)大(da)(da)功率(lv)造成成本增加和(he)使用不便。電(dian)機(ji)過(guo)小，同時也滿足不了工程(cheng)需(xu)要。

混凝(ning)土(tu)輸送泵(beng)功率、混凝(ning)土(tu)輸送泵(beng)出口(kou)壓力、混凝(ning)土(tu)輸送泵(beng)輸送量之間的(de)關系(xi)

一(yi)臺混凝土輸(shu)(shu)送(song)(song)泵的(de)電(dian)(dian)機功(gong)(gong)率(lv)是(shi)決定出(chu)口壓(ya)力和輸(shu)(shu)送(song)(song)方量的(de)前提條(tiao)件，在電(dian)(dian)機功(gong)(gong)率(lv)一(yi)定的(de)情況下，壓(ya)力的(de)升(sheng)高必將(jiang)使輸(shu)(shu)送(song)(song)量降低(di)；相反，降低(di)出(chu)口壓(ya)力，將(jiang)會使輸(shu)(shu)送(song)(song)量增加。

為了保證混凝土輸(shu)送泵(beng)既要有(you)較(jiao)大輸(shu)送量(liang)，又能有(you)一定(ding)的(de)(de)(de)(de)(de)出(chu)口壓(ya)力(li)和與(yu)之(zhi)相匹配的(de)(de)(de)(de)(de)經濟功(gong)(gong)率(lv)，在混凝土輸(shu)送泵(beng)的(de)(de)(de)(de)(de)設計(ji)(ji)中，大都采用了恒(heng)功(gong)(gong)率(lv)柱塞泵(beng)；即(ji)恒(heng)功(gong)(gong)率(lv)值選定(ding)后(hou)，當出(chu)口壓(ya)力(li)升高時，油泵(beng)輸(shu)出(chu)排量(liang)會(hui)自動降低，達(da)(da)到(dao)與(yu)功(gong)(gong)率(lv)設計(ji)(ji)相對應(ying)的(de)(de)(de)(de)(de)值；如果(guo)既要達(da)(da)到(dao)出(chu)口壓(ya)力(li)高，又想得(de)到(dao)輸(shu)送量(liang)大的(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)。惟(wei)一的(de)(de)(de)(de)(de)途(tu)徑(jing)就是增(zeng)加電(dian)機(ji)功(gong)(gong)率(lv)。

因此(ci)，在(zai)(zai)國家(jia)新標準中，引(yin)用(yong)(yong)了混凝(ning)(ning)土輸送(song)(song)泵(beng)的(de)(de)能(neng)力指(zhi)數(shu)概念(nian)（以MPa·m3/h為(wei)度量單位(wei)）；即混凝(ning)(ning)土輸送(song)(song)泵(beng)的(de)(de)實(shi)際(ji)出口壓力與每小時實(shi)際(ji)輸送(song)(song)量之乘積，該值越大(da)，其能(neng)力指(zhi)數(shu)也越大(da)，電機(ji)(ji)的(de)(de)功(gong)率(lv)也將越大(da)，由(you)此(ci)實(shi)現大(da)排量、高(gao)(gao)揚程的(de)(de)目的(de)(de)。科尼樂公(gong)司在(zai)(zai)設計時，還(huan)采用(yong)(yong)了高(gao)(gao)低壓切換的(de)(de)功(gong)能(neng)設計，以滿足(zu)不同(tong)的(de)(de)施工要(yao)求，在(zai)(zai)經濟狀態下，又能(neng)產(chan)生較大(da)的(de)(de)輸送(song)(song)量，或者(zhe)以相同(tong)的(de)(de)電機(ji)(ji)功(gong)率(lv)，產(chan)生較高(gao)(gao)的(de)(de)出口壓力。