具體參數

隨著現(xian)代(dai)工(gong)(gong)(gong)業的(de)(de)(de)(de)(de)興起，以混(hun)凝(ning)土(tu)為(wei)(wei)主材料的(de)(de)(de)(de)(de)建設(she)方式已經(jing)成為(wei)(wei)了(le)建筑業施(shi)工(gong)(gong)(gong)的(de)(de)(de)(de)(de)主要構造之(zhi)一，在各種(zhong)工(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)建設(she)中占據了(le)很大的(de)(de)(de)(de)(de)比例，使(shi)得混(hun)凝(ning)土(tu)機(ji)械(xie)的(de)(de)(de)(de)(de)發展經(jing)久不衰，且有越(yue)演越(yue)烈(lie)的(de)(de)(de)(de)(de)形勢(shi)。拖(tuo)式混(hun)凝(ning)土(tu)泵，簡稱拖(tuo)泵，是各種(zhong)混(hun)凝(ning)土(tu)機(ji)械(xie)中的(de)(de)(de)(de)(de)一種(zhong)，用(yong)于混(hun)凝(ning)土(tu)施(shi)工(gong)(gong)(gong)中的(de)(de)(de)(de)(de)輸送和澆注工(gong)(gong)(gong)作。

拖(tuo)泵分類選型

37千(qian)(qian)(qian)(qian)瓦(wa)(wa)（目前國內標準(zhun)混(hun)凝土(tu)泵(beng)，37千(qian)(qian)(qian)(qian)瓦(wa)(wa)以下(xia)為(wei)細石砂(sha)漿泵(beng)）、45千(qian)(qian)(qian)(qian)瓦(wa)(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(wa)（柴(chai)(chai)油）、132千(qian)(qian)(qian)(qian)瓦(wa)(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(wa)（柴(chai)(chai)油）、174千(qian)(qian)(qian)(qian)瓦(wa)(wa)（柴(chai)(chai)油）等(deng)。

選擇多(duo)大(da)電機混凝土(tu)泵，首先要考慮變壓器容量，其(qi)次考慮距離混凝土(tu)泵的遠近和線徑大(da)小(xiao)，以免壓降(jiang)過大(da)造成電流增高或跳閘停機，過大(da)功(gong)率造成成本增加和使用不便。電機過小(xiao)，同時(shi)也滿(man)足(zu)不了(le)工(gong)程需要。

混(hun)(hun)凝土(tu)輸送(song)(song)泵(beng)功率(lv)、混(hun)(hun)凝土(tu)輸送(song)(song)泵(beng)出口壓力、混(hun)(hun)凝土(tu)輸送(song)(song)泵(beng)輸送(song)(song)量之間的關系

一(yi)臺混凝土輸(shu)(shu)送(song)(song)泵的電(dian)(dian)機(ji)功率是決定出口壓(ya)力(li)和(he)輸(shu)(shu)送(song)(song)方量的前提(ti)條件，在電(dian)(dian)機(ji)功率一(yi)定的情況下，壓(ya)力(li)的升高必將使(shi)輸(shu)(shu)送(song)(song)量降(jiang)低(di)；相反，降(jiang)低(di)出口壓(ya)力(li)，將會使(shi)輸(shu)(shu)送(song)(song)量增加。

為了保(bao)證混凝(ning)土輸送(song)泵(beng)既(ji)要(yao)有(you)較大輸送(song)量，又能有(you)一(yi)定(ding)的(de)出(chu)(chu)口壓力和與(yu)(yu)之相匹(pi)配(pei)的(de)經濟功(gong)(gong)率，在混凝(ning)土輸送(song)泵(beng)的(de)設計(ji)中，大都采用(yong)了恒功(gong)(gong)率柱塞泵(beng)；即恒功(gong)(gong)率值選定(ding)后，當出(chu)(chu)口壓力升高(gao)(gao)時，油(you)泵(beng)輸出(chu)(chu)排量會自動降(jiang)低，達(da)到與(yu)(yu)功(gong)(gong)率設計(ji)相對應的(de)值；如果既(ji)要(yao)達(da)到出(chu)(chu)口壓力高(gao)(gao)，又想(xiang)得到輸送(song)量大的(de)目的(de)。惟一(yi)的(de)途徑就是增加電機功(gong)(gong)率。

因此(ci)，在國家新標準中，引用(yong)了(le)混凝土輸送(song)(song)泵的(de)(de)(de)能(neng)(neng)(neng)力(li)指數概念（以(yi)MPa·m3/h為度量單(dan)位）；即混凝土輸送(song)(song)泵的(de)(de)(de)實際(ji)出(chu)口壓力(li)與每小時實際(ji)輸送(song)(song)量之乘(cheng)積，該值(zhi)越(yue)大(da)(da)，其能(neng)(neng)(neng)力(li)指數也越(yue)大(da)(da)，電機的(de)(de)(de)功(gong)率也將越(yue)大(da)(da)，由此(ci)實現(xian)大(da)(da)排量、高(gao)揚(yang)程的(de)(de)(de)目的(de)(de)(de)。科尼樂公司在設計時，還采(cai)用(yong)了(le)高(gao)低壓切換(huan)的(de)(de)(de)功(gong)能(neng)(neng)(neng)設計，以(yi)滿足不(bu)同的(de)(de)(de)施工要求，在經濟(ji)狀態下，又能(neng)(neng)(neng)產(chan)(chan)生較(jiao)大(da)(da)的(de)(de)(de)輸送(song)(song)量，或者以(yi)相(xiang)同的(de)(de)(de)電機功(gong)率，產(chan)(chan)生較(jiao)高(gao)的(de)(de)(de)出(chu)口壓力(li)。