東莞市銳鑫(xin)機電有限公司
聯系人(ren):劉(liu)君燕/13539086677
24小時服務(wu)熱(re)線:13763247345
座機:400-1501660
網址(zhi):21yantai.cn
地址:東莞(guan)市虎門(men)鎮捷(jie)東南路9號(hao)
B棟(dong)401
隨著現代工(gong)(gong)(gong)業的(de)興起,以(yi)混(hun)凝(ning)(ning)土為主材(cai)料(liao)的(de)建設方式已經成為了建筑業施工(gong)(gong)(gong)的(de)主要(yao)構造之一(yi),在各(ge)種(zhong)工(gong)(gong)(gong)程施工(gong)(gong)(gong)建設中(zhong)(zhong)占據了很(hen)大(da)的(de)比(bi)例,使(shi)得混(hun)凝(ning)(ning)土機(ji)械(xie)的(de)發展經久不衰,且(qie)有越演越烈的(de)形勢(shi)。拖式混(hun)凝(ning)(ning)土泵(beng),簡稱拖泵(beng),是各(ge)種(zhong)混(hun)凝(ning)(ning)土機(ji)械(xie)中(zhong)(zhong)的(de)一(yi)種(zhong),用于混(hun)凝(ning)(ning)土施工(gong)(gong)(gong)中(zhong)(zhong)的(de)輸送和澆注工(gong)(gong)(gong)作。
拖泵分類選型
37千(qian)(qian)瓦(wa)(wa)(目前國(guo)內標準(zhun)混(hun)凝土泵(beng),37千(qian)(qian)瓦(wa)(wa)以下為(wei)細石砂漿泵(beng))、45千(qian)(qian)瓦(wa)(wa)、55千(qian)(qian)瓦(wa)(wa)、75千(qian)(qian)瓦(wa)(wa)、90千(qian)(qian)瓦(wa)(wa)、110千(qian)(qian)瓦(wa)(wa)、130千(qian)(qian)瓦(wa)(wa)(柴(chai)油(you))、132千(qian)(qian)瓦(wa)(wa)、162千(qian)(qian)瓦(wa)(wa)(柴(chai)油(you))、174千(qian)(qian)瓦(wa)(wa)(柴(chai)油(you))等。
選擇多大(da)電(dian)機(ji)混凝(ning)土(tu)泵,首(shou)先要考(kao)慮變壓器容量(liang),其次考(kao)慮距離(li)混凝(ning)土(tu)泵的(de)遠近和線徑大(da)小(xiao),以免(mian)壓降過(guo)大(da)造成(cheng)(cheng)電(dian)流增(zeng)高或跳閘停機(ji),過(guo)大(da)功率造成(cheng)(cheng)成(cheng)(cheng)本增(zeng)加(jia)和使用不便。電(dian)機(ji)過(guo)小(xiao),同時(shi)也滿(man)足不了工程(cheng)需要。
混(hun)(hun)凝土輸送泵功率、混(hun)(hun)凝土輸送泵出口壓力、混(hun)(hun)凝土輸送泵輸送量之間(jian)的關(guan)系(xi)
一臺混凝土(tu)輸(shu)送(song)泵的(de)電機功率(lv)是決定出(chu)口壓(ya)(ya)力(li)和輸(shu)送(song)方量的(de)前提條件,在(zai)電機功率(lv)一定的(de)情(qing)況(kuang)下,壓(ya)(ya)力(li)的(de)升高必將(jiang)使(shi)輸(shu)送(song)量降低;相(xiang)反,降低出(chu)口壓(ya)(ya)力(li),將(jiang)會使(shi)輸(shu)送(song)量增加。
為了保證混(hun)凝土輸(shu)(shu)送(song)泵(beng)既要(yao)有較大輸(shu)(shu)送(song)量,又能有一(yi)定的(de)出口壓力和與之相(xiang)匹(pi)配的(de)經濟功率(lv),在混(hun)凝土輸(shu)(shu)送(song)泵(beng)的(de)設計(ji)中,大都采用(yong)了恒(heng)功率(lv)柱塞泵(beng);即恒(heng)功率(lv)值(zhi)選定后,當出口壓力升高時,油泵(beng)輸(shu)(shu)出排(pai)量會自(zi)動降低(di),達(da)到與功率(lv)設計(ji)相(xiang)對應(ying)的(de)值(zhi);如果既要(yao)達(da)到出口壓力高,又想得到輸(shu)(shu)送(song)量大的(de)目的(de)。惟一(yi)的(de)途徑就(jiu)是增(zeng)加電(dian)機功率(lv)。
因(yin)此,在(zai)(zai)國(guo)家新標(biao)準中,引用了混凝土輸(shu)(shu)送(song)(song)(song)泵的(de)(de)(de)能力(li)指數概念(以(yi)(yi)MPa·m3/h為度量(liang)單(dan)位);即混凝土輸(shu)(shu)送(song)(song)(song)泵的(de)(de)(de)實(shi)(shi)(shi)際出(chu)口壓(ya)力(li)與每小時實(shi)(shi)(shi)際輸(shu)(shu)送(song)(song)(song)量(liang)之乘積,該值越(yue)大(da)(da),其能力(li)指數也(ye)越(yue)大(da)(da),電機(ji)的(de)(de)(de)功(gong)(gong)率(lv)也(ye)將越(yue)大(da)(da),由此實(shi)(shi)(shi)現(xian)大(da)(da)排(pai)量(liang)、高揚程的(de)(de)(de)目的(de)(de)(de)。科尼(ni)樂公司在(zai)(zai)設(she)計時,還(huan)采用了高低壓(ya)切換的(de)(de)(de)功(gong)(gong)能設(she)計,以(yi)(yi)滿足不同的(de)(de)(de)施工要(yao)求,在(zai)(zai)經(jing)濟(ji)狀態下,又能產生較大(da)(da)的(de)(de)(de)輸(shu)(shu)送(song)(song)(song)量(liang),或者(zhe)以(yi)(yi)相同的(de)(de)(de)電機(ji)功(gong)(gong)率(lv),產生較高的(de)(de)(de)出(chu)口壓(ya)力(li)。