具體參數

隨(sui)著現代工(gong)(gong)業的興起，以(yi)混(hun)(hun)凝(ning)土(tu)(tu)為主(zhu)材料的建(jian)(jian)設方式已經(jing)成為了(le)建(jian)(jian)筑業施工(gong)(gong)的主(zhu)要構造之一，在各(ge)種工(gong)(gong)程施工(gong)(gong)建(jian)(jian)設中(zhong)(zhong)占據了(le)很(hen)大的比例，使得混(hun)(hun)凝(ning)土(tu)(tu)機械(xie)的發(fa)展經(jing)久不衰，且有越演越烈的形(xing)勢。拖式混(hun)(hun)凝(ning)土(tu)(tu)泵，簡稱拖泵，是各(ge)種混(hun)(hun)凝(ning)土(tu)(tu)機械(xie)中(zhong)(zhong)的一種，用(yong)于混(hun)(hun)凝(ning)土(tu)(tu)施工(gong)(gong)中(zhong)(zhong)的輸送和(he)澆注工(gong)(gong)作。

拖泵分類選(xuan)型

37千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)（目(mu)前(qian)國內標準混凝(ning)土泵，37千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)以(yi)下為細(xi)石砂漿泵）、45千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、55千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、75千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、90千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、110千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、130千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)（柴(chai)油(you)）、132千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、162千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)（柴(chai)油(you)）、174千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)（柴(chai)油(you)）等。

選擇多(duo)大(da)電(dian)機(ji)混(hun)凝(ning)(ning)土(tu)泵(beng)，首(shou)先(xian)要考慮變壓(ya)器容量，其次考慮距(ju)離混(hun)凝(ning)(ning)土(tu)泵(beng)的遠近和線(xian)徑大(da)小，以免壓(ya)降過大(da)造(zao)成(cheng)電(dian)流增高或跳(tiao)閘停機(ji)，過大(da)功率造(zao)成(cheng)成(cheng)本增加和使用不便。電(dian)機(ji)過小，同時也滿足不了工程需(xu)要。

混(hun)凝土輸送(song)(song)泵功(gong)率(lv)、混(hun)凝土輸送(song)(song)泵出(chu)口(kou)壓(ya)力、混(hun)凝土輸送(song)(song)泵輸送(song)(song)量之間的關系

一(yi)(yi)臺(tai)混凝土輸送(song)泵的(de)(de)電(dian)(dian)機功率(lv)是決定(ding)出口壓力和輸送(song)方量(liang)的(de)(de)前提條件，在電(dian)(dian)機功率(lv)一(yi)(yi)定(ding)的(de)(de)情(qing)況(kuang)下，壓力的(de)(de)升高(gao)必(bi)將使(shi)輸送(song)量(liang)降(jiang)低；相(xiang)反，降(jiang)低出口壓力，將會使(shi)輸送(song)量(liang)增加。

為了(le)保證混(hun)凝土(tu)輸(shu)送(song)泵(beng)既(ji)(ji)要(yao)有(you)較(jiao)大輸(shu)送(song)量(liang)，又(you)能有(you)一定的(de)(de)出口壓力和與之相匹配的(de)(de)經濟功(gong)(gong)率，在(zai)混(hun)凝土(tu)輸(shu)送(song)泵(beng)的(de)(de)設計中，大都采(cai)用了(le)恒(heng)功(gong)(gong)率柱(zhu)塞泵(beng)；即恒(heng)功(gong)(gong)率值選定后，當出口壓力升高時，油泵(beng)輸(shu)出排量(liang)會自(zi)動降低，達(da)(da)到(dao)(dao)與功(gong)(gong)率設計相對應(ying)的(de)(de)值；如果既(ji)(ji)要(yao)達(da)(da)到(dao)(dao)出口壓力高，又(you)想得到(dao)(dao)輸(shu)送(song)量(liang)大的(de)(de)目的(de)(de)。惟一的(de)(de)途徑(jing)就是(shi)增加電機功(gong)(gong)率。

因此(ci)，在(zai)國家新(xin)標準中，引用了混(hun)凝土輸(shu)送泵的(de)能(neng)力(li)指數概(gai)念(nian)（以(yi)MPa·m3/h為度量單位）；即混(hun)凝土輸(shu)送泵的(de)實際出口壓(ya)力(li)與每小時實際輸(shu)送量之乘(cheng)積，該值越大，其能(neng)力(li)指數也越大，電機(ji)的(de)功率(lv)也將越大，由此(ci)實現(xian)大排(pai)量、高揚程(cheng)的(de)目(mu)的(de)。科尼樂公司在(zai)設(she)計時，還采用了高低壓(ya)切換的(de)功能(neng)設(she)計，以(yi)滿足(zu)不同的(de)施工要求，在(zai)經濟狀態(tai)下(xia)，又能(neng)產生較大的(de)輸(shu)送量，或者以(yi)相同的(de)電機(ji)功率(lv)，產生較高的(de)出口壓(ya)力(li)。