具體參數

隨(sui)著現代工(gong)(gong)業(ye)的(de)(de)(de)興(xing)起，以混凝土(tu)為主材(cai)料的(de)(de)(de)建(jian)設方(fang)式已經成為了建(jian)筑業(ye)施工(gong)(gong)的(de)(de)(de)主要構造之一，在各種(zhong)工(gong)(gong)程施工(gong)(gong)建(jian)設中(zhong)(zhong)占據了很大(da)的(de)(de)(de)比例，使得混凝土(tu)機械的(de)(de)(de)發展經久不衰，且有越演越烈的(de)(de)(de)形勢。拖式混凝土(tu)泵，簡(jian)稱拖泵，是各種(zhong)混凝土(tu)機械中(zhong)(zhong)的(de)(de)(de)一種(zhong)，用(yong)于(yu)混凝土(tu)施工(gong)(gong)中(zhong)(zhong)的(de)(de)(de)輸(shu)送和澆注工(gong)(gong)作。

拖(tuo)泵分類(lei)選(xuan)型

37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（目前國(guo)內標準(zhun)混凝土(tu)泵，37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)以下為(wei)細(xi)石砂漿泵）、45千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（柴油）、132千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（柴油）、174千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（柴油）等。

選擇(ze)多大(da)電(dian)機(ji)(ji)混(hun)凝土(tu)泵(beng)(beng)，首先要考(kao)慮(lv)變壓器容(rong)量，其次考(kao)慮(lv)距離(li)混(hun)凝土(tu)泵(beng)(beng)的(de)遠近和線徑大(da)小，以免壓降過(guo)大(da)造(zao)成(cheng)電(dian)流增(zeng)(zeng)高(gao)或跳閘停機(ji)(ji)，過(guo)大(da)功率造(zao)成(cheng)成(cheng)本增(zeng)(zeng)加和使用不便。電(dian)機(ji)(ji)過(guo)小，同時也滿足不了(le)工程需要。

混(hun)凝(ning)(ning)土輸(shu)送泵(beng)功率、混(hun)凝(ning)(ning)土輸(shu)送泵(beng)出口壓力、混(hun)凝(ning)(ning)土輸(shu)送泵(beng)輸(shu)送量(liang)之間的關系

一臺混凝土輸(shu)(shu)送(song)泵(beng)的(de)電(dian)(dian)機功率是決定出口壓力和輸(shu)(shu)送(song)方量(liang)的(de)前提條件，在電(dian)(dian)機功率一定的(de)情(qing)況下，壓力的(de)升高必(bi)將(jiang)使輸(shu)(shu)送(song)量(liang)降低(di)；相反，降低(di)出口壓力，將(jiang)會使輸(shu)(shu)送(song)量(liang)增加。

為了保證混凝土(tu)輸(shu)送(song)泵既要有(you)較大輸(shu)送(song)量，又(you)能有(you)一(yi)定(ding)的(de)(de)出(chu)(chu)口(kou)壓(ya)力和與之相匹配的(de)(de)經(jing)濟功(gong)(gong)率(lv)，在混凝土(tu)輸(shu)送(song)泵的(de)(de)設計中，大都采(cai)用了恒(heng)(heng)功(gong)(gong)率(lv)柱(zhu)塞泵；即恒(heng)(heng)功(gong)(gong)率(lv)值(zhi)選定(ding)后，當出(chu)(chu)口(kou)壓(ya)力升(sheng)高時，油泵輸(shu)出(chu)(chu)排量會(hui)自動降(jiang)低，達到(dao)與功(gong)(gong)率(lv)設計相對應(ying)的(de)(de)值(zhi)；如(ru)果(guo)既要達到(dao)出(chu)(chu)口(kou)壓(ya)力高，又(you)想得到(dao)輸(shu)送(song)量大的(de)(de)目(mu)的(de)(de)。惟一(yi)的(de)(de)途徑就是增加電機功(gong)(gong)率(lv)。

因此，在國家新標準中，引用了混(hun)凝(ning)土輸送(song)泵(beng)的(de)能(neng)力(li)指數概念（以MPa·m3/h為度量(liang)單位(wei)）；即混(hun)凝(ning)土輸送(song)泵(beng)的(de)實(shi)際(ji)出(chu)(chu)口壓(ya)力(li)與每小(xiao)時實(shi)際(ji)輸送(song)量(liang)之乘積，該值越(yue)大(da)，其能(neng)力(li)指數也(ye)越(yue)大(da)，電機的(de)功率也(ye)將越(yue)大(da)，由此實(shi)現大(da)排量(liang)、高(gao)揚程(cheng)的(de)目(mu)的(de)。科尼樂公(gong)司在設計(ji)時，還采用了高(gao)低壓(ya)切換的(de)功能(neng)設計(ji)，以滿足不(bu)同(tong)的(de)施(shi)工要求，在經濟狀態下，又能(neng)產生較(jiao)大(da)的(de)輸送(song)量(liang)，或者以相同(tong)的(de)電機功率，產生較(jiao)高(gao)的(de)出(chu)(chu)口壓(ya)力(li)。