具體參數

隨(sui)著(zhu)現代工(gong)(gong)(gong)業的(de)(de)(de)(de)興(xing)起，以(yi)混凝土為主材料的(de)(de)(de)(de)建設(she)方式已經成為了(le)建筑業施(shi)(shi)工(gong)(gong)(gong)的(de)(de)(de)(de)主要構造之一(yi)，在各種(zhong)工(gong)(gong)(gong)程施(shi)(shi)工(gong)(gong)(gong)建設(she)中占據了(le)很(hen)大(da)的(de)(de)(de)(de)比例，使得混凝土機械的(de)(de)(de)(de)發展經久不衰，且(qie)有越演越烈的(de)(de)(de)(de)形勢。拖式混凝土泵(beng)，簡稱拖泵(beng)，是各種(zhong)混凝土機械中的(de)(de)(de)(de)一(yi)種(zhong)，用(yong)于混凝土施(shi)(shi)工(gong)(gong)(gong)中的(de)(de)(de)(de)輸送和澆注工(gong)(gong)(gong)作。

拖泵(beng)分類選型

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

選擇(ze)多大電機混凝土(tu)泵(beng)，首先(xian)要考慮變壓(ya)器(qi)容量，其次考慮距離混凝土(tu)泵(beng)的遠近和線徑大小，以免(mian)壓(ya)降過大造成電流增高(gao)或跳閘停機，過大功率造成成本增加和使用不(bu)(bu)便。電機過小，同時也滿足不(bu)(bu)了工程需要。

混(hun)(hun)凝(ning)土(tu)輸送(song)(song)(song)泵功率、混(hun)(hun)凝(ning)土(tu)輸送(song)(song)(song)泵出口(kou)壓(ya)力、混(hun)(hun)凝(ning)土(tu)輸送(song)(song)(song)泵輸送(song)(song)(song)量之間的關系

一臺混凝土輸(shu)(shu)(shu)送(song)泵的電(dian)機(ji)功率是決定出(chu)口(kou)壓力(li)和輸(shu)(shu)(shu)送(song)方量(liang)的前提(ti)條件，在電(dian)機(ji)功率一定的情況下，壓力(li)的升高必(bi)將使輸(shu)(shu)(shu)送(song)量(liang)降(jiang)低(di)；相反，降(jiang)低(di)出(chu)口(kou)壓力(li)，將會使輸(shu)(shu)(shu)送(song)量(liang)增加。

為了保(bao)證(zheng)混凝土輸(shu)(shu)送(song)泵既要(yao)有較(jiao)大(da)輸(shu)(shu)送(song)量(liang)，又能有一(yi)定(ding)的出(chu)(chu)口壓(ya)力(li)和(he)與之相匹配的經濟功率(lv)，在混凝土輸(shu)(shu)送(song)泵的設(she)計中(zhong)，大(da)都采(cai)用了恒功率(lv)柱(zhu)塞泵；即恒功率(lv)值(zhi)選定(ding)后，當出(chu)(chu)口壓(ya)力(li)升高時，油泵輸(shu)(shu)出(chu)(chu)排量(liang)會自動降低，達到與功率(lv)設(she)計相對應(ying)的值(zhi)；如果既要(yao)達到出(chu)(chu)口壓(ya)力(li)高，又想得到輸(shu)(shu)送(song)量(liang)大(da)的目的。惟(wei)一(yi)的途徑就是增(zeng)加電機功率(lv)。

因此，在國家(jia)新(xin)標準中，引用了(le)混凝土(tu)輸送(song)(song)泵的(de)(de)能(neng)力指數概念(nian)（以MPa·m3/h為度(du)量(liang)單位）；即混凝土(tu)輸送(song)(song)泵的(de)(de)實(shi)(shi)際(ji)(ji)出(chu)口(kou)壓(ya)力與每小時實(shi)(shi)際(ji)(ji)輸送(song)(song)量(liang)之乘積，該(gai)值越大，其能(neng)力指數也越大，電機的(de)(de)功(gong)率(lv)也將越大，由此實(shi)(shi)現大排(pai)量(liang)、高(gao)(gao)揚程的(de)(de)目的(de)(de)。科尼(ni)樂公(gong)司在設計時，還采(cai)用了(le)高(gao)(gao)低壓(ya)切(qie)換的(de)(de)功(gong)能(neng)設計，以滿(man)足(zu)不同的(de)(de)施(shi)工要求，在經濟狀態下，又能(neng)產生(sheng)較大的(de)(de)輸送(song)(song)量(liang)，或者以相同的(de)(de)電機功(gong)率(lv)，產生(sheng)較高(gao)(gao)的(de)(de)出(chu)口(kou)壓(ya)力。