具體參數

拖泵(beng)分(fen)類選型

37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)（目(mu)前國內(nei)標(biao)準(zhun)混(hun)凝(ning)土泵，37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)以下為(wei)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）等等。

選擇多大電機(ji)混(hun)凝土泵，首先(xian)要考(kao)慮(lv)(lv)變壓器容量，其次考(kao)慮(lv)(lv)距離混(hun)凝土泵的遠(yuan)近和線徑大小，以免壓降過大造(zao)成(cheng)(cheng)電流增(zeng)高或跳閘停(ting)機(ji)，過大功率造(zao)成(cheng)(cheng)成(cheng)(cheng)本增(zeng)加和使用(yong)不便。電機(ji)過小，同時也滿(man)足不了工程需要。

混(hun)(hun)凝(ning)土輸(shu)送泵功(gong)率、混(hun)(hun)凝(ning)土輸(shu)送泵出(chu)口壓力(li)、混(hun)(hun)凝(ning)土輸(shu)送泵輸(shu)送量之間(jian)的關系(xi)。

一臺(tai)混凝土輸送(song)泵(beng)的(de)(de)電機功(gong)率(lv)(lv)是決定(ding)出口壓(ya)(ya)力和輸送(song)方量(liang)的(de)(de)前提(ti)條(tiao)件，在(zai)電機功(gong)率(lv)(lv)一定(ding)的(de)(de)情況(kuang)下(xia)，壓(ya)(ya)力的(de)(de)升(sheng)高必(bi)將(jiang)使(shi)輸送(song)量(liang)降低(di)；相(xiang)反(fan)，降低(di)出口壓(ya)(ya)力，將(jiang)會使(shi)輸送(song)量(liang)增加。

為了保證混凝(ning)土輸(shu)(shu)(shu)送(song)(song)泵既(ji)要有(you)較(jiao)大(da)輸(shu)(shu)(shu)送(song)(song)量，又(you)能有(you)一(yi)定(ding)的(de)(de)出(chu)口(kou)壓力和與(yu)之相(xiang)匹(pi)配(pei)的(de)(de)經濟功(gong)(gong)(gong)(gong)率(lv)，在混凝(ning)土輸(shu)(shu)(shu)送(song)(song)泵的(de)(de)設計中(zhong)，大(da)都(dou)采用了恒(heng)功(gong)(gong)(gong)(gong)率(lv)柱塞泵；即(ji)恒(heng)功(gong)(gong)(gong)(gong)率(lv)值(zhi)選定(ding)后，當出(chu)口(kou)壓力升高時，油泵輸(shu)(shu)(shu)出(chu)排(pai)量會自動降低(di)，達到(dao)與(yu)功(gong)(gong)(gong)(gong)率(lv)設計相(xiang)對應(ying)的(de)(de)值(zhi)；如果既(ji)要達到(dao)出(chu)口(kou)壓力高，又(you)想(xiang)得到(dao)輸(shu)(shu)(shu)送(song)(song)量大(da)的(de)(de)目的(de)(de)。惟(wei)一(yi)的(de)(de)途徑就是增加電機功(gong)(gong)(gong)(gong)率(lv)。

因此，在國家新標準(zhun)中，引用(yong)了(le)混凝土輸送(song)(song)泵的(de)(de)能(neng)(neng)力指數(shu)概念（以(yi)MPa·m3/h為(wei)度量單位）；即混凝土輸送(song)(song)泵的(de)(de)實(shi)際出(chu)口壓力與每(mei)小時實(shi)際輸送(song)(song)量之乘(cheng)積，該值越(yue)(yue)大(da)(da)(da)，其能(neng)(neng)力指數(shu)也(ye)越(yue)(yue)大(da)(da)(da)，電機的(de)(de)功(gong)率也(ye)將越(yue)(yue)大(da)(da)(da)，由此實(shi)現大(da)(da)(da)排(pai)量、高(gao)揚程的(de)(de)目的(de)(de)。科尼(ni)樂公司在設(she)計(ji)時，還采用(yong)了(le)高(gao)低(di)壓切換的(de)(de)功(gong)能(neng)(neng)設(she)計(ji)，以(yi)滿(man)足(zu)不(bu)同的(de)(de)施工要求，在經(jing)濟狀態下，又能(neng)(neng)產生(sheng)較大(da)(da)(da)的(de)(de)輸送(song)(song)量，或(huo)者以(yi)相同的(de)(de)電機功(gong)率，產生(sheng)較高(gao)的(de)(de)出(chu)口壓力。