具體參數

隨著現(xian)代(dai)工(gong)業的興起，以混(hun)凝土(tu)為主材料的建(jian)設(she)方式(shi)已經成為了建(jian)筑(zhu)業施(shi)工(gong)的主要構(gou)造之一，在各種工(gong)程施(shi)工(gong)建(jian)設(she)中(zhong)占(zhan)據了很大的比(bi)例，使得混(hun)凝土(tu)機械的發展經久不衰，且有越演越烈的形勢。拖式(shi)混(hun)凝土(tu)泵，簡稱拖泵，是各種混(hun)凝土(tu)機械中(zhong)的一種，用于混(hun)凝土(tu)施(shi)工(gong)中(zhong)的輸送和澆注工(gong)作。

拖泵分類(lei)選型

37千(qian)(qian)(qian)(qian)(qian)瓦（目前國(guo)內標準(zhun)混凝土泵，37千(qian)(qian)(qian)(qian)(qian)瓦以(yi)下(xia)為(wei)細石砂漿(jiang)泵）、45千(qian)(qian)(qian)(qian)(qian)瓦、55千(qian)(qian)(qian)(qian)(qian)瓦、75千(qian)(qian)(qian)(qian)(qian)瓦、90千(qian)(qian)(qian)(qian)(qian)瓦、110千(qian)(qian)(qian)(qian)(qian)瓦、130千(qian)(qian)(qian)(qian)(qian)瓦（柴油(you)）、132千(qian)(qian)(qian)(qian)(qian)瓦、162千(qian)(qian)(qian)(qian)(qian)瓦（柴油(you)）、174千(qian)(qian)(qian)(qian)(qian)瓦（柴油(you)）等。

選擇多(duo)大(da)(da)(da)電機(ji)混(hun)凝土(tu)泵，首先要考(kao)慮變壓(ya)(ya)器容量(liang)，其次考(kao)慮距(ju)離混(hun)凝土(tu)泵的(de)遠近和(he)線徑大(da)(da)(da)小(xiao)，以免壓(ya)(ya)降過大(da)(da)(da)造成電流增高或跳(tiao)閘停機(ji)，過大(da)(da)(da)功率造成成本增加和(he)使(shi)用不便。電機(ji)過小(xiao)，同(tong)時(shi)也滿(man)足不了工(gong)程需要。

混(hun)凝(ning)土輸送(song)(song)泵(beng)功率、混(hun)凝(ning)土輸送(song)(song)泵(beng)出(chu)口壓力、混(hun)凝(ning)土輸送(song)(song)泵(beng)輸送(song)(song)量之間(jian)的(de)關系

一(yi)臺混凝土輸(shu)送(song)泵的電機功率是決定出(chu)口壓力(li)和(he)輸(shu)送(song)方量的前提條(tiao)件，在電機功率一(yi)定的情況(kuang)下，壓力(li)的升高必將使(shi)輸(shu)送(song)量降低(di)；相反(fan)，降低(di)出(chu)口壓力(li)，將會使(shi)輸(shu)送(song)量增(zeng)加。

為了(le)保證(zheng)混凝(ning)土(tu)輸(shu)(shu)送(song)泵(beng)既(ji)(ji)要有較大(da)輸(shu)(shu)送(song)量，又能有一(yi)定的出(chu)口壓力和(he)與(yu)之相匹配(pei)的經(jing)濟功(gong)率，在混凝(ning)土(tu)輸(shu)(shu)送(song)泵(beng)的設(she)計中，大(da)都(dou)采用了(le)恒(heng)(heng)功(gong)率柱塞泵(beng)；即(ji)恒(heng)(heng)功(gong)率值選(xuan)定后，當出(chu)口壓力升高時，油泵(beng)輸(shu)(shu)出(chu)排量會自動降(jiang)低，達到(dao)(dao)與(yu)功(gong)率設(she)計相對應的值；如果既(ji)(ji)要達到(dao)(dao)出(chu)口壓力高，又想得到(dao)(dao)輸(shu)(shu)送(song)量大(da)的目的。惟一(yi)的途徑就是(shi)增加(jia)電機功(gong)率。

因此，在國家新標準中，引用了混(hun)凝(ning)土(tu)輸(shu)(shu)送(song)泵的(de)能力指數概念（以MPa·m3/h為(wei)度(du)量(liang)(liang)單(dan)位）；即混(hun)凝(ning)土(tu)輸(shu)(shu)送(song)泵的(de)實際(ji)出口壓(ya)力與每小(xiao)時實際(ji)輸(shu)(shu)送(song)量(liang)(liang)之(zhi)乘積(ji)，該(gai)值越大(da)，其能力指數也(ye)越大(da)，電機的(de)功(gong)(gong)(gong)率(lv)(lv)也(ye)將越大(da)，由(you)此實現(xian)大(da)排量(liang)(liang)、高(gao)揚(yang)程(cheng)的(de)目(mu)的(de)。科尼樂公司(si)在設(she)(she)計(ji)時，還采用了高(gao)低壓(ya)切換的(de)功(gong)(gong)(gong)能設(she)(she)計(ji)，以滿足(zu)不同(tong)的(de)施工要求，在經濟狀態下，又能產(chan)生(sheng)較(jiao)大(da)的(de)輸(shu)(shu)送(song)量(liang)(liang)，或(huo)者以相同(tong)的(de)電機功(gong)(gong)(gong)率(lv)(lv)，產(chan)生(sheng)較(jiao)高(gao)的(de)出口壓(ya)力。