東莞市銳(rui)鑫機電(dian)有限公司
聯(lian)系人:劉君燕/13539086677
24小時(shi)服務熱(re)線(xian):13763247345
座(zuo)機(ji):400-1501660
網址(zhi):21yantai.cn
地(di)址:東(dong)莞市虎門(men)鎮捷東(dong)南路9號
B棟401
隨著現代工(gong)(gong)業的(de)興(xing)起,以(yi)混(hun)凝(ning)(ning)土(tu)為(wei)主材料的(de)建(jian)設(she)方式(shi)已經成(cheng)為(wei)了建(jian)筑(zhu)業施工(gong)(gong)的(de)主要構造之一,在各(ge)種(zhong)(zhong)工(gong)(gong)程施工(gong)(gong)建(jian)設(she)中(zhong)占據(ju)了很大的(de)比例,使得混(hun)凝(ning)(ning)土(tu)機械的(de)發展(zhan)經久(jiu)不(bu)衰(shuai),且有越演越烈的(de)形勢。拖式(shi)混(hun)凝(ning)(ning)土(tu)泵,簡稱拖泵,是各(ge)種(zhong)(zhong)混(hun)凝(ning)(ning)土(tu)機械中(zhong)的(de)一種(zhong)(zhong),用于混(hun)凝(ning)(ning)土(tu)施工(gong)(gong)中(zhong)的(de)輸送和澆注工(gong)(gong)作。
拖泵分類選型
37千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)(目前(qian)國內(nei)標準混凝土泵(beng),37千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)以(yi)下為(wei)細石(shi)砂漿泵(beng))、45千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、55千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、75千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、90千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、110千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、130千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)(柴(chai)油(you))、132千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)、162千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)(柴(chai)油(you))、174千(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(wa)(柴(chai)油(you))等(deng)。
選(xuan)擇多大(da)電機混凝(ning)土(tu)泵,首先要(yao)考慮變壓(ya)器容量,其(qi)次考慮距(ju)離混凝(ning)土(tu)泵的遠(yuan)近和線徑大(da)小,以免壓(ya)降過(guo)大(da)造成(cheng)電流增高或跳閘停(ting)機,過(guo)大(da)功率(lv)造成(cheng)成(cheng)本增加和使(shi)用不便。電機過(guo)小,同(tong)時也滿(man)足不了工程需要(yao)。
混凝土(tu)輸(shu)(shu)送泵功(gong)率、混凝土(tu)輸(shu)(shu)送泵出口壓力、混凝土(tu)輸(shu)(shu)送泵輸(shu)(shu)送量之間的關(guan)系
一臺混凝土(tu)輸(shu)(shu)送泵(beng)的電機(ji)(ji)功(gong)率(lv)是決(jue)定出口壓力(li)(li)和輸(shu)(shu)送方量(liang)的前(qian)提條(tiao)件,在電機(ji)(ji)功(gong)率(lv)一定的情況下,壓力(li)(li)的升高必將使輸(shu)(shu)送量(liang)降低(di);相(xiang)反,降低(di)出口壓力(li)(li),將會使輸(shu)(shu)送量(liang)增(zeng)加(jia)。
為(wei)了保證混凝土輸(shu)(shu)(shu)送泵既(ji)要(yao)有(you)較大輸(shu)(shu)(shu)送量(liang),又能有(you)一定的(de)出(chu)口壓力(li)和與之相匹配(pei)的(de)經濟功(gong)(gong)(gong)率,在混凝土輸(shu)(shu)(shu)送泵的(de)設(she)計中(zhong),大都采(cai)用(yong)了恒功(gong)(gong)(gong)率柱塞泵;即(ji)恒功(gong)(gong)(gong)率值(zhi)選定后,當出(chu)口壓力(li)升高時(shi),油泵輸(shu)(shu)(shu)出(chu)排量(liang)會自動降低,達到(dao)與功(gong)(gong)(gong)率設(she)計相對應的(de)值(zhi);如(ru)果既(ji)要(yao)達到(dao)出(chu)口壓力(li)高,又想得到(dao)輸(shu)(shu)(shu)送量(liang)大的(de)目的(de)。惟一的(de)途(tu)徑就是增加電機功(gong)(gong)(gong)率。
因此,在(zai)國家新標準(zhun)中,引用了(le)混(hun)凝(ning)土(tu)輸(shu)送(song)泵的(de)能(neng)(neng)力(li)(li)指數(shu)(shu)概(gai)念(以(yi)MPa·m3/h為(wei)度(du)量單位);即混(hun)凝(ning)土(tu)輸(shu)送(song)泵的(de)實際(ji)出口壓力(li)(li)與每(mei)小時(shi)實際(ji)輸(shu)送(song)量之乘積,該值越大(da)(da),其能(neng)(neng)力(li)(li)指數(shu)(shu)也越大(da)(da),電機的(de)功(gong)率也將越大(da)(da),由此實現大(da)(da)排量、高揚程的(de)目的(de)。科尼(ni)樂公司在(zai)設(she)計時(shi),還采用了(le)高低壓切換的(de)功(gong)能(neng)(neng)設(she)計,以(yi)滿足不(bu)同的(de)施工要求,在(zai)經濟狀態下,又(you)能(neng)(neng)產生較(jiao)大(da)(da)的(de)輸(shu)送(song)量,或(huo)者以(yi)相同的(de)電機功(gong)率,產生較(jiao)高的(de)出口壓力(li)(li)。