具體參數

拖泵(beng)分類選型

37千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)（目前(qian)國內標準(zhun)混凝(ning)土(tu)泵(beng)，37千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)以下為(wei)細(xi)石砂漿泵(beng)）、45千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、55千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、75千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、90千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、110千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、130千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)（柴(chai)油(you)(you)）、132千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、162千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)（柴(chai)油(you)(you)）、174千(qian)(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)（柴(chai)油(you)(you)）等等。

選擇(ze)多(duo)大(da)電(dian)機(ji)混凝(ning)土(tu)泵，首(shou)先要考慮變壓器容量，其次考慮距(ju)離混凝(ning)土(tu)泵的遠近和(he)(he)線徑大(da)小(xiao)(xiao)，以(yi)免壓降過大(da)造成電(dian)流增(zeng)高或(huo)跳閘停機(ji)，過大(da)功(gong)率造成成本增(zeng)加和(he)(he)使用不便。電(dian)機(ji)過小(xiao)(xiao)，同(tong)時也滿(man)足不了工程需要。

混凝土輸送(song)泵功率、混凝土輸送(song)泵出口壓力、混凝土輸送(song)泵輸送(song)量之間的(de)關系

一臺混凝土輸(shu)(shu)送(song)(song)泵的(de)電機功率是決定(ding)出口(kou)壓(ya)(ya)力(li)和(he)輸(shu)(shu)送(song)(song)方量(liang)的(de)前提條(tiao)件，在電機功率一定(ding)的(de)情況下(xia)，壓(ya)(ya)力(li)的(de)升高必將使(shi)輸(shu)(shu)送(song)(song)量(liang)降(jiang)低；相反(fan)，降(jiang)低出口(kou)壓(ya)(ya)力(li)，將會使(shi)輸(shu)(shu)送(song)(song)量(liang)增(zeng)加。

為了保(bao)證混凝土輸(shu)送(song)泵(beng)既要有(you)較大(da)輸(shu)送(song)量，又能有(you)一定(ding)的(de)(de)出口壓力(li)和與(yu)(yu)之相匹配的(de)(de)經濟功(gong)(gong)率(lv)(lv)，在(zai)混凝土輸(shu)送(song)泵(beng)的(de)(de)設(she)計中(zhong)，大(da)都采用(yong)了恒功(gong)(gong)率(lv)(lv)柱塞泵(beng)；即恒功(gong)(gong)率(lv)(lv)值選定(ding)后，當出口壓力(li)升(sheng)高時，油泵(beng)輸(shu)出排(pai)量會自動降低，達(da)到與(yu)(yu)功(gong)(gong)率(lv)(lv)設(she)計相對(dui)應的(de)(de)值；如果既要達(da)到出口壓力(li)高，又想得到輸(shu)送(song)量大(da)的(de)(de)目的(de)(de)。惟一的(de)(de)途徑(jing)就是增加(jia)電機功(gong)(gong)率(lv)(lv)。

因此，在(zai)國(guo)家新標準(zhun)中(zhong)，引用了(le)混(hun)凝(ning)土(tu)輸(shu)送(song)泵的(de)(de)(de)(de)(de)能(neng)(neng)(neng)力(li)(li)指數概念(nian)（以(yi)MPa·m3/h為(wei)度量(liang)(liang)單位）；即混(hun)凝(ning)土(tu)輸(shu)送(song)泵的(de)(de)(de)(de)(de)實際出口壓力(li)(li)與(yu)每小時實際輸(shu)送(song)量(liang)(liang)之乘積，該值越(yue)大，其能(neng)(neng)(neng)力(li)(li)指數也越(yue)大，電(dian)機(ji)的(de)(de)(de)(de)(de)功(gong)率(lv)也將越(yue)大，由此實現大排量(liang)(liang)、高(gao)揚程的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)。科尼(ni)樂公(gong)司在(zai)設(she)計時，還采用了(le)高(gao)低(di)壓切換(huan)的(de)(de)(de)(de)(de)功(gong)能(neng)(neng)(neng)設(she)計，以(yi)滿足不同的(de)(de)(de)(de)(de)施工要(yao)求，在(zai)經濟狀態(tai)下，又(you)能(neng)(neng)(neng)產生較大的(de)(de)(de)(de)(de)輸(shu)送(song)量(liang)(liang)，或者以(yi)相同的(de)(de)(de)(de)(de)電(dian)機(ji)功(gong)率(lv)，產生較高(gao)的(de)(de)(de)(de)(de)出口壓力(li)(li)。