具體(ti)參數

隨著現代工(gong)業的興(xing)起，以混(hun)凝土為主(zhu)材料的建(jian)(jian)設(she)方式(shi)已經(jing)(jing)成為了(le)建(jian)(jian)筑(zhu)業施(shi)(shi)工(gong)的主(zhu)要構造(zao)之一，在(zai)各種工(gong)程施(shi)(shi)工(gong)建(jian)(jian)設(she)中(zhong)占據了(le)很(hen)大(da)的比例，使得(de)混(hun)凝土機(ji)械的發(fa)展經(jing)(jing)久不(bu)衰，且有(you)越(yue)演越(yue)烈的形(xing)勢(shi)。拖式(shi)混(hun)凝土泵，簡稱拖泵，是各種混(hun)凝土機(ji)械中(zhong)的一種，用于混(hun)凝土施(shi)(shi)工(gong)中(zhong)的輸(shu)送(song)和澆注工(gong)作。

拖(tuo)泵分類選型

37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)（目前國內標準混凝土泵，37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)以下為細(xi)石砂漿泵）、45千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)（柴油(you)）、132千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)（柴油(you)）、174千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)（柴油(you)）等。

選擇多大電(dian)機(ji)混凝土泵，首先要考慮變壓器容量(liang)，其次考慮距(ju)離混凝土泵的遠近(jin)和(he)線徑大小(xiao)，以(yi)免壓降(jiang)過(guo)大造成電(dian)流增(zeng)(zeng)高或跳閘停機(ji)，過(guo)大功(gong)率造成成本(ben)增(zeng)(zeng)加(jia)和(he)使用不便(bian)。電(dian)機(ji)過(guo)小(xiao)，同(tong)時也滿足不了(le)工程需要。

混凝土(tu)輸(shu)送(song)(song)泵(beng)功率、混凝土(tu)輸(shu)送(song)(song)泵(beng)出(chu)口壓力、混凝土(tu)輸(shu)送(song)(song)泵(beng)輸(shu)送(song)(song)量(liang)之(zhi)間的關系

一(yi)臺混(hun)凝土輸送(song)(song)(song)泵的(de)電機(ji)功率是決(jue)定(ding)出口壓(ya)力和(he)輸送(song)(song)(song)方量的(de)前(qian)提條件，在電機(ji)功率一(yi)定(ding)的(de)情(qing)況(kuang)下，壓(ya)力的(de)升高必將使輸送(song)(song)(song)量降(jiang)低(di)；相反，降(jiang)低(di)出口壓(ya)力，將會使輸送(song)(song)(song)量增加。

為了保(bao)證(zheng)混凝(ning)土輸(shu)送(song)(song)(song)泵既(ji)要有較大(da)(da)輸(shu)送(song)(song)(song)量(liang)，又能有一定(ding)的(de)(de)出口壓力(li)和與(yu)之(zhi)相(xiang)匹配(pei)的(de)(de)經(jing)濟(ji)功(gong)率(lv)，在混凝(ning)土輸(shu)送(song)(song)(song)泵的(de)(de)設計(ji)中(zhong)，大(da)(da)都(dou)采(cai)用了恒(heng)功(gong)率(lv)柱塞(sai)泵；即恒(heng)功(gong)率(lv)值選(xuan)定(ding)后，當出口壓力(li)升高(gao)時(shi)，油泵輸(shu)出排量(liang)會自動(dong)降低，達到與(yu)功(gong)率(lv)設計(ji)相(xiang)對應的(de)(de)值；如果既(ji)要達到出口壓力(li)高(gao)，又想得到輸(shu)送(song)(song)(song)量(liang)大(da)(da)的(de)(de)目的(de)(de)。惟(wei)一的(de)(de)途徑就是增加電機(ji)功(gong)率(lv)。

因此，在(zai)國家(jia)新標(biao)準中，引用了混(hun)凝(ning)土(tu)輸(shu)(shu)送(song)泵的(de)(de)(de)(de)能(neng)(neng)(neng)力(li)指數概念（以MPa·m3/h為度量(liang)單位）；即混(hun)凝(ning)土(tu)輸(shu)(shu)送(song)泵的(de)(de)(de)(de)實(shi)際(ji)(ji)出(chu)口(kou)壓(ya)力(li)與每小時實(shi)際(ji)(ji)輸(shu)(shu)送(song)量(liang)之乘積，該值越大(da)(da)，其能(neng)(neng)(neng)力(li)指數也越大(da)(da)，電(dian)機的(de)(de)(de)(de)功(gong)率(lv)也將越大(da)(da)，由此實(shi)現(xian)大(da)(da)排量(liang)、高(gao)揚程(cheng)的(de)(de)(de)(de)目的(de)(de)(de)(de)。科尼樂公司在(zai)設計時，還采用了高(gao)低壓(ya)切換的(de)(de)(de)(de)功(gong)能(neng)(neng)(neng)設計，以滿(man)足不同的(de)(de)(de)(de)施工要求，在(zai)經(jing)濟狀態(tai)下，又能(neng)(neng)(neng)產生較大(da)(da)的(de)(de)(de)(de)輸(shu)(shu)送(song)量(liang)，或者以相同的(de)(de)(de)(de)電(dian)機功(gong)率(lv)，產生較高(gao)的(de)(de)(de)(de)出(chu)口(kou)壓(ya)力(li)。