具體參數

隨著現代工(gong)(gong)業的(de)興(xing)起，以混(hun)(hun)凝(ning)土(tu)(tu)為主(zhu)材料(liao)的(de)建設方式已(yi)經成為了建筑業施(shi)工(gong)(gong)的(de)主(zhu)要構造之(zhi)一，在各(ge)(ge)種(zhong)工(gong)(gong)程施(shi)工(gong)(gong)建設中(zhong)占據了很大的(de)比(bi)例(li)，使得(de)混(hun)(hun)凝(ning)土(tu)(tu)機械的(de)發展經久不衰，且(qie)有越演越烈的(de)形勢。拖式混(hun)(hun)凝(ning)土(tu)(tu)泵，簡稱拖泵，是各(ge)(ge)種(zhong)混(hun)(hun)凝(ning)土(tu)(tu)機械中(zhong)的(de)一種(zhong)，用于混(hun)(hun)凝(ning)土(tu)(tu)施(shi)工(gong)(gong)中(zhong)的(de)輸送(song)和澆注工(gong)(gong)作。

拖泵(beng)分類選型

37千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（目前國(guo)內標準(zhun)混凝(ning)土(tu)泵(beng)，37千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)以下為細石砂漿泵(beng)）、45千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、55千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、75千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、90千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、110千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、130千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（柴(chai)(chai)油(you)）、132千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、162千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（柴(chai)(chai)油(you)）、174千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（柴(chai)(chai)油(you)）等。

選擇多大電機混(hun)凝(ning)土(tu)泵(beng)(beng)，首先(xian)要考(kao)慮變壓(ya)器容量，其次考(kao)慮距(ju)離混(hun)凝(ning)土(tu)泵(beng)(beng)的遠近和(he)線徑(jing)大小(xiao)，以免壓(ya)降過大造(zao)成電流增高或跳閘(zha)停機，過大功率(lv)造(zao)成成本增加和(he)使用不便。電機過小(xiao)，同時也滿足不了工程需(xu)要。

混凝土(tu)(tu)輸(shu)送(song)泵功率、混凝土(tu)(tu)輸(shu)送(song)泵出口壓力、混凝土(tu)(tu)輸(shu)送(song)泵輸(shu)送(song)量之間的關系

一臺混凝土輸(shu)送(song)泵的(de)電機(ji)功(gong)率是決定(ding)出口(kou)壓(ya)力(li)和輸(shu)送(song)方(fang)量的(de)前提條件，在電機(ji)功(gong)率一定(ding)的(de)情(qing)況下，壓(ya)力(li)的(de)升高必將(jiang)使(shi)輸(shu)送(song)量降低(di)(di)；相反(fan)，降低(di)(di)出口(kou)壓(ya)力(li)，將(jiang)會使(shi)輸(shu)送(song)量增加。

為了保證混凝土輸送(song)(song)(song)泵(beng)既要有較大輸送(song)(song)(song)量，又能(neng)有一定(ding)的(de)出(chu)口(kou)壓(ya)力(li)和與之相匹配的(de)經濟功(gong)率，在混凝土輸送(song)(song)(song)泵(beng)的(de)設(she)計(ji)中，大都采用了恒功(gong)率柱塞泵(beng)；即恒功(gong)率值選定(ding)后，當出(chu)口(kou)壓(ya)力(li)升高時，油泵(beng)輸出(chu)排量會自動降低(di)，達到與功(gong)率設(she)計(ji)相對應的(de)值；如果(guo)既要達到出(chu)口(kou)壓(ya)力(li)高，又想得到輸送(song)(song)(song)量大的(de)目的(de)。惟一的(de)途徑就是增(zeng)加(jia)電機功(gong)率。

因此，在(zai)國家(jia)新標準(zhun)中，引(yin)用了混(hun)凝(ning)土輸(shu)送(song)泵的(de)(de)能(neng)力(li)指數(shu)(shu)概念（以MPa·m3/h為(wei)度量(liang)單位）；即混(hun)凝(ning)土輸(shu)送(song)泵的(de)(de)實(shi)(shi)際(ji)出口(kou)壓力(li)與每小(xiao)時實(shi)(shi)際(ji)輸(shu)送(song)量(liang)之乘積(ji)，該值越大(da)，其(qi)能(neng)力(li)指數(shu)(shu)也越大(da)，電機的(de)(de)功率也將(jiang)越大(da)，由此實(shi)(shi)現大(da)排量(liang)、高揚程的(de)(de)目的(de)(de)。科尼樂公司在(zai)設計時，還采用了高低壓切換的(de)(de)功能(neng)設計，以滿足不同的(de)(de)施工要求，在(zai)經濟狀態(tai)下，又(you)能(neng)產生較大(da)的(de)(de)輸(shu)送(song)量(liang)，或(huo)者以相同的(de)(de)電機功率，產生較高的(de)(de)出口(kou)壓力(li)。