東莞市銳鑫機電有限公司
聯系人:劉君燕/13539086677
24小時服務熱線:13763247345
座(zuo)機:400-1501660
網址:21yantai.cn
地址(zhi):東(dong)(dong)莞市虎門鎮捷東(dong)(dong)南(nan)路9號
B棟401
具(ju)體參數
隨著現代工(gong)業的興(xing)起(qi),以混(hun)凝土(tu)為主材(cai)料的建設方式已經成為了(le)建筑業施工(gong)的主要構造之一,在(zai)各種(zhong)工(gong)程施工(gong)建設中(zhong)(zhong)占據了(le)很(hen)大的比例,使(shi)得混(hun)凝土(tu)機(ji)械的發展經久不(bu)衰,且(qie)有(you)越演越烈(lie)的形勢。拖(tuo)式混(hun)凝土(tu)泵,簡稱拖(tuo)泵,是各種(zhong)混(hun)凝土(tu)機(ji)械中(zhong)(zhong)的一種(zhong),用于(yu)混(hun)凝土(tu)施工(gong)中(zhong)(zhong)的輸(shu)送和(he)澆注工(gong)作。
拖泵(beng)分(fen)類(lei)選型
37千(qian)(qian)(qian)瓦(wa)(wa)(目前國(guo)內標準混(hun)凝土泵,37千(qian)(qian)(qian)瓦(wa)(wa)以下為細石砂漿泵)、45千(qian)(qian)(qian)瓦(wa)(wa)、55千(qian)(qian)(qian)瓦(wa)(wa)、75千(qian)(qian)(qian)瓦(wa)(wa)、90千(qian)(qian)(qian)瓦(wa)(wa)、110千(qian)(qian)(qian)瓦(wa)(wa)、130千(qian)(qian)(qian)瓦(wa)(wa)(柴(chai)油(you))、132千(qian)(qian)(qian)瓦(wa)(wa)、162千(qian)(qian)(qian)瓦(wa)(wa)(柴(chai)油(you))、174千(qian)(qian)(qian)瓦(wa)(wa)(柴(chai)油(you))等。
選擇多大(da)電(dian)(dian)(dian)機(ji)混凝土泵,首先要考(kao)慮變壓(ya)器容量,其次考(kao)慮距離混凝土泵的遠(yuan)近和(he)線徑大(da)小,以免壓(ya)降過大(da)造成(cheng)電(dian)(dian)(dian)流增高(gao)或跳閘停機(ji),過大(da)功率造成(cheng)成(cheng)本增加和(he)使用不便(bian)。電(dian)(dian)(dian)機(ji)過小,同時也(ye)滿(man)足(zu)不了工程需要。
混(hun)凝土輸送(song)泵(beng)功率、混(hun)凝土輸送(song)泵(beng)出口壓力(li)、混(hun)凝土輸送(song)泵(beng)輸送(song)量之間(jian)的關系
一(yi)臺混凝(ning)土輸送(song)泵的電(dian)機功(gong)率(lv)是決定(ding)出口壓力(li)和輸送(song)方量的前提條件(jian),在電(dian)機功(gong)率(lv)一(yi)定(ding)的情況下,壓力(li)的升高必將使(shi)(shi)輸送(song)量降(jiang)低;相反,降(jiang)低出口壓力(li),將會使(shi)(shi)輸送(song)量增加。
為了保證混凝土輸(shu)送(song)(song)(song)泵(beng)既要(yao)有較(jiao)大輸(shu)送(song)(song)(song)量,又能(neng)有一定的出(chu)(chu)口壓力和與之相匹(pi)配(pei)的經濟功(gong)(gong)率(lv)(lv),在混凝土輸(shu)送(song)(song)(song)泵(beng)的設(she)(she)計中,大都(dou)采用了恒功(gong)(gong)率(lv)(lv)柱塞泵(beng);即(ji)恒功(gong)(gong)率(lv)(lv)值選(xuan)定后,當出(chu)(chu)口壓力升高時,油泵(beng)輸(shu)出(chu)(chu)排量會(hui)自(zi)動降(jiang)低,達到(dao)(dao)(dao)與功(gong)(gong)率(lv)(lv)設(she)(she)計相對(dui)應(ying)的值;如果(guo)既要(yao)達到(dao)(dao)(dao)出(chu)(chu)口壓力高,又想得(de)到(dao)(dao)(dao)輸(shu)送(song)(song)(song)量大的目的。惟一的途徑就是增加(jia)電機功(gong)(gong)率(lv)(lv)。
因(yin)此(ci),在國家新標準(zhun)中,引(yin)用(yong)了(le)混凝土輸送(song)泵的(de)(de)能力指(zhi)數概念(以MPa·m3/h為度量(liang)單(dan)位);即混凝土輸送(song)泵的(de)(de)實(shi)際出(chu)口壓力與每小時實(shi)際輸送(song)量(liang)之(zhi)乘積,該值越大(da),其能力指(zhi)數也越大(da),電機(ji)(ji)的(de)(de)功(gong)(gong)率也將越大(da),由此(ci)實(shi)現大(da)排量(liang)、高(gao)揚程的(de)(de)目的(de)(de)。科尼樂公(gong)司在設(she)計(ji)時,還采用(yong)了(le)高(gao)低壓切換(huan)的(de)(de)功(gong)(gong)能設(she)計(ji),以滿(man)足不同(tong)的(de)(de)施工要(yao)求(qiu),在經濟狀態下,又能產(chan)(chan)生較大(da)的(de)(de)輸送(song)量(liang),或者以相同(tong)的(de)(de)電機(ji)(ji)功(gong)(gong)率,產(chan)(chan)生較高(gao)的(de)(de)出(chu)口壓力。