具體參數

隨著現代工(gong)(gong)(gong)業的(de)(de)興起(qi)，以混凝土(tu)為主(zhu)材(cai)料的(de)(de)建(jian)(jian)設(she)方(fang)式(shi)已經成為了建(jian)(jian)筑業施(shi)工(gong)(gong)(gong)的(de)(de)主(zhu)要構造(zao)之一，在各(ge)種工(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)建(jian)(jian)設(she)中(zhong)占(zhan)據了很大的(de)(de)比例，使得混凝土(tu)機械的(de)(de)發展經久(jiu)不衰(shuai)，且(qie)有越(yue)演越(yue)烈的(de)(de)形勢。拖式(shi)混凝土(tu)泵(beng)，簡稱拖泵(beng)，是各(ge)種混凝土(tu)機械中(zhong)的(de)(de)一種，用(yong)于混凝土(tu)施(shi)工(gong)(gong)(gong)中(zhong)的(de)(de)輸(shu)送和澆注工(gong)(gong)(gong)作。

拖泵分(fen)類選型(xing)

37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（目前國內標(biao)準混凝土(tu)泵，37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)以下(xia)為細石砂漿(jiang)泵）、45千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（柴(chai)油(you)）、132千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（柴(chai)油(you)）、174千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)（柴(chai)油(you)）等。

選擇多大電(dian)機混凝(ning)土泵(beng)，首(shou)先要(yao)(yao)考(kao)慮變壓(ya)(ya)器容量(liang)，其(qi)次考(kao)慮距離混凝(ning)土泵(beng)的遠近和線徑(jing)大小，以(yi)免壓(ya)(ya)降過大造成(cheng)電(dian)流增高或跳閘停(ting)機，過大功率造成(cheng)成(cheng)本增加和使用不便。電(dian)機過小，同(tong)時也滿足不了工(gong)程需要(yao)(yao)。

混(hun)凝(ning)(ning)土(tu)輸(shu)送(song)泵功率、混(hun)凝(ning)(ning)土(tu)輸(shu)送(song)泵出口壓力、混(hun)凝(ning)(ning)土(tu)輸(shu)送(song)泵輸(shu)送(song)量之(zhi)間(jian)的關系

一臺混凝土輸(shu)送(song)泵的(de)電機功率是決定出口壓(ya)力(li)和輸(shu)送(song)方(fang)量(liang)(liang)的(de)前提條(tiao)件，在電機功率一定的(de)情況下，壓(ya)力(li)的(de)升(sheng)高必(bi)將使(shi)輸(shu)送(song)量(liang)(liang)降低；相反，降低出口壓(ya)力(li)，將會使(shi)輸(shu)送(song)量(liang)(liang)增加。

為了(le)保(bao)證混凝(ning)土(tu)輸送泵既要有較大(da)輸送量，又(you)能(neng)有一(yi)定(ding)的出口(kou)壓力(li)和與(yu)之相匹配的經(jing)濟功率(lv)，在混凝(ning)土(tu)輸送泵的設計(ji)中，大(da)都采用(yong)了(le)恒(heng)功率(lv)柱塞泵；即恒(heng)功率(lv)值選定(ding)后，當出口(kou)壓力(li)升高(gao)時，油泵輸出排量會(hui)自動降低，達(da)到(dao)與(yu)功率(lv)設計(ji)相對應的值；如果既要達(da)到(dao)出口(kou)壓力(li)高(gao)，又(you)想得到(dao)輸送量大(da)的目的。惟一(yi)的途(tu)徑(jing)就(jiu)是增加電機功率(lv)。

因此，在(zai)國家(jia)新標準中，引用(yong)了混凝土輸(shu)送(song)(song)泵(beng)的(de)(de)(de)(de)能力(li)指數(shu)概(gai)念(nian)（以(yi)MPa·m3/h為(wei)度量單(dan)位）；即混凝土輸(shu)送(song)(song)泵(beng)的(de)(de)(de)(de)實際出(chu)口壓(ya)力(li)與(yu)每(mei)小(xiao)時(shi)實際輸(shu)送(song)(song)量之乘積，該值越(yue)(yue)大，其能力(li)指數(shu)也(ye)越(yue)(yue)大，電機的(de)(de)(de)(de)功率也(ye)將越(yue)(yue)大，由此實現大排(pai)量、高(gao)(gao)揚(yang)程的(de)(de)(de)(de)目的(de)(de)(de)(de)。科尼樂公(gong)司在(zai)設計(ji)時(shi)，還采用(yong)了高(gao)(gao)低壓(ya)切換的(de)(de)(de)(de)功能設計(ji)，以(yi)滿(man)足不(bu)同(tong)(tong)的(de)(de)(de)(de)施工要求，在(zai)經濟狀態下，又(you)能產生較大的(de)(de)(de)(de)輸(shu)送(song)(song)量，或(huo)者以(yi)相同(tong)(tong)的(de)(de)(de)(de)電機功率，產生較高(gao)(gao)的(de)(de)(de)(de)出(chu)口壓(ya)力(li)。