東莞市銳鑫機(ji)電有限公司
聯(lian)系人:劉君(jun)燕/13539086677
24小時服務(wu)熱線(xian):13763247345
座機:400-1501660
網址:21yantai.cn
地(di)址:東莞市虎門鎮捷東南路9號
B棟(dong)401
隨著現(xian)代工(gong)(gong)業的(de)興起(qi),以混凝土(tu)為(wei)主(zhu)材料的(de)建(jian)設(she)(she)方(fang)式(shi)(shi)已經(jing)成為(wei)了建(jian)筑業施工(gong)(gong)的(de)主(zhu)要構造之一,在(zai)各(ge)種(zhong)工(gong)(gong)程施工(gong)(gong)建(jian)設(she)(she)中(zhong)(zhong)(zhong)占據了很大的(de)比例,使得混凝土(tu)機械(xie)的(de)發展(zhan)經(jing)久不衰,且(qie)有越演(yan)越烈的(de)形勢。拖式(shi)(shi)混凝土(tu)泵(beng),簡稱拖泵(beng),是(shi)各(ge)種(zhong)混凝土(tu)機械(xie)中(zhong)(zhong)(zhong)的(de)一種(zhong),用于混凝土(tu)施工(gong)(gong)中(zhong)(zhong)(zhong)的(de)輸送和澆注工(gong)(gong)作。
拖泵分類選型
37千(qian)瓦(wa)(wa)(wa)(wa)(目前國(guo)內(nei)標準混凝(ning)土泵,37千(qian)瓦(wa)(wa)(wa)(wa)以下為細石(shi)砂(sha)漿泵)、45千(qian)瓦(wa)(wa)(wa)(wa)、55千(qian)瓦(wa)(wa)(wa)(wa)、75千(qian)瓦(wa)(wa)(wa)(wa)、90千(qian)瓦(wa)(wa)(wa)(wa)、110千(qian)瓦(wa)(wa)(wa)(wa)、130千(qian)瓦(wa)(wa)(wa)(wa)(柴(chai)油(you))、132千(qian)瓦(wa)(wa)(wa)(wa)、162千(qian)瓦(wa)(wa)(wa)(wa)(柴(chai)油(you))、174千(qian)瓦(wa)(wa)(wa)(wa)(柴(chai)油(you))等。
選擇多大電(dian)機混凝土泵,首先要考(kao)慮變壓器(qi)容量,其次考(kao)慮距離混凝土泵的(de)遠近和線徑大小(xiao),以免(mian)壓降過大造成電(dian)流增(zeng)高或跳(tiao)閘停(ting)機,過大功率造成成本增(zeng)加(jia)和使用不(bu)便。電(dian)機過小(xiao),同時也滿足(zu)不(bu)了(le)工程需要。
混凝(ning)土輸送泵功率、混凝(ning)土輸送泵出口壓力、混凝(ning)土輸送泵輸送量之(zhi)間的關系
一(yi)臺混(hun)凝土(tu)輸(shu)送(song)(song)泵的電機(ji)功率(lv)(lv)是決定出口壓力和輸(shu)送(song)(song)方量的前提條件,在(zai)電機(ji)功率(lv)(lv)一(yi)定的情況下(xia),壓力的升高必將使(shi)輸(shu)送(song)(song)量降低;相(xiang)反,降低出口壓力,將會使(shi)輸(shu)送(song)(song)量增(zeng)加。
為(wei)了保證(zheng)混凝土輸(shu)送(song)(song)泵(beng)既要有較大(da)輸(shu)送(song)(song)量,又(you)能有一定的(de)出(chu)口壓(ya)力和與之相匹(pi)配(pei)的(de)經濟功(gong)(gong)率(lv)(lv),在混凝土輸(shu)送(song)(song)泵(beng)的(de)設(she)計中(zhong),大(da)都采用了恒(heng)功(gong)(gong)率(lv)(lv)柱(zhu)塞泵(beng);即恒(heng)功(gong)(gong)率(lv)(lv)值選定后,當出(chu)口壓(ya)力升高時(shi),油泵(beng)輸(shu)出(chu)排量會(hui)自動降(jiang)低,達到與功(gong)(gong)率(lv)(lv)設(she)計相對應的(de)值;如果既要達到出(chu)口壓(ya)力高,又(you)想(xiang)得到輸(shu)送(song)(song)量大(da)的(de)目的(de)。惟一的(de)途徑就是增加電機功(gong)(gong)率(lv)(lv)。
因此,在國(guo)家新標準(zhun)中,引用了混凝(ning)土輸(shu)送(song)泵(beng)(beng)的(de)(de)能力指(zhi)數概念(以(yi)MPa·m3/h為度量(liang)單位);即混凝(ning)土輸(shu)送(song)泵(beng)(beng)的(de)(de)實(shi)際出(chu)口(kou)壓力與每(mei)小時實(shi)際輸(shu)送(song)量(liang)之乘積,該值(zhi)越(yue)(yue)大(da)(da),其能力指(zhi)數也越(yue)(yue)大(da)(da),電(dian)機的(de)(de)功(gong)(gong)率(lv)也將越(yue)(yue)大(da)(da),由(you)此實(shi)現大(da)(da)排量(liang)、高揚(yang)程的(de)(de)目的(de)(de)。科(ke)尼樂公司在設(she)計(ji)(ji)時,還采用了高低壓切(qie)換的(de)(de)功(gong)(gong)能設(she)計(ji)(ji),以(yi)滿足不同(tong)的(de)(de)施工要求(qiu),在經濟狀態(tai)下,又能產(chan)生(sheng)較大(da)(da)的(de)(de)輸(shu)送(song)量(liang),或者(zhe)以(yi)相同(tong)的(de)(de)電(dian)機功(gong)(gong)率(lv),產(chan)生(sheng)較高的(de)(de)出(chu)口(kou)壓力。