東莞市(shi)銳鑫(xin)機電有限公司
聯系人:劉君燕/13539086677
24小時服(fu)務(wu)熱線:13763247345
座(zuo)機:400-1501660
郵箱(xiang):[email protected]
網址:21yantai.cn
地址:東(dong)莞市虎門鎮捷(jie)東(dong)南路9號
B棟401
具體參(can)數(shu)
隨著(zhu)現代工(gong)(gong)業(ye)的(de)興起,以混凝(ning)土為主(zhu)材料(liao)的(de)建(jian)設方式已經成為了建(jian)筑業(ye)施(shi)工(gong)(gong)的(de)主(zhu)要構造之(zhi)一,在(zai)各(ge)(ge)種(zhong)工(gong)(gong)程(cheng)施(shi)工(gong)(gong)建(jian)設中(zhong)占據(ju)了很大的(de)比(bi)例,使(shi)得混凝(ning)土機械(xie)的(de)發展經久不衰,且有越(yue)演越(yue)烈(lie)的(de)形勢。拖式混凝(ning)土泵,簡(jian)稱拖泵,是各(ge)(ge)種(zhong)混凝(ning)土機械(xie)中(zhong)的(de)一種(zhong),用于混凝(ning)土施(shi)工(gong)(gong)中(zhong)的(de)輸送和澆注工(gong)(gong)作。
拖(tuo)泵(beng)分類選型
37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(目前國內標準(zhun)混凝土泵,37千(qian)(qian)(qian)(qian)瓦(wa)(wa)以下(xia)為細石(shi)砂(sha)漿泵)、45千(qian)(qian)(qian)(qian)瓦(wa)(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(wa)(柴(chai)(chai)(chai)油)、132千(qian)(qian)(qian)(qian)瓦(wa)(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(wa)(柴(chai)(chai)(chai)油)、174千(qian)(qian)(qian)(qian)瓦(wa)(wa)(柴(chai)(chai)(chai)油)等。
選(xuan)擇多大(da)電機混凝土泵,首先要考慮(lv)變壓器(qi)容量,其(qi)次考慮(lv)距離混凝土泵的遠近和(he)線徑大(da)小,以免壓降(jiang)過(guo)大(da)造成(cheng)電流增(zeng)高或跳(tiao)閘停機,過(guo)大(da)功率造成(cheng)成(cheng)本(ben)增(zeng)加和(he)使用不便。電機過(guo)小,同時(shi)也滿足不了工(gong)程需(xu)要。
混凝(ning)土(tu)輸(shu)送泵(beng)(beng)功率(lv)、混凝(ning)土(tu)輸(shu)送泵(beng)(beng)出口壓力、混凝(ning)土(tu)輸(shu)送泵(beng)(beng)輸(shu)送量之間的關系
一臺混凝土輸送(song)(song)泵的(de)電機功(gong)率是決定出(chu)口壓力(li)和(he)輸送(song)(song)方(fang)量(liang)的(de)前(qian)提條件,在電機功(gong)率一定的(de)情況下(xia),壓力(li)的(de)升高必將使(shi)輸送(song)(song)量(liang)降(jiang)低;相(xiang)反,降(jiang)低出(chu)口壓力(li),將會使(shi)輸送(song)(song)量(liang)增加(jia)。
為了保證(zheng)混凝(ning)土(tu)輸(shu)送(song)(song)泵(beng)既要有較大(da)輸(shu)送(song)(song)量(liang),又能(neng)有一定的(de)(de)出(chu)口(kou)(kou)壓(ya)力(li)和(he)與(yu)之相(xiang)匹配的(de)(de)經濟(ji)功(gong)(gong)(gong)(gong)率(lv),在混凝(ning)土(tu)輸(shu)送(song)(song)泵(beng)的(de)(de)設計中,大(da)都采用了恒功(gong)(gong)(gong)(gong)率(lv)柱塞泵(beng);即恒功(gong)(gong)(gong)(gong)率(lv)值選定后(hou),當出(chu)口(kou)(kou)壓(ya)力(li)升高(gao)時,油泵(beng)輸(shu)出(chu)排量(liang)會自動降低,達(da)到與(yu)功(gong)(gong)(gong)(gong)率(lv)設計相(xiang)對應的(de)(de)值;如果既要達(da)到出(chu)口(kou)(kou)壓(ya)力(li)高(gao),又想得到輸(shu)送(song)(song)量(liang)大(da)的(de)(de)目(mu)的(de)(de)。惟一的(de)(de)途徑就是增加(jia)電機功(gong)(gong)(gong)(gong)率(lv)。
因此,在(zai)國家新標準中(zhong),引用(yong)了混(hun)(hun)凝(ning)土輸(shu)送(song)泵的(de)(de)(de)能(neng)(neng)力指(zhi)數概念(以MPa·m3/h為(wei)度量單位);即混(hun)(hun)凝(ning)土輸(shu)送(song)泵的(de)(de)(de)實際出(chu)口壓力與每小時實際輸(shu)送(song)量之乘積,該值越(yue)大,其能(neng)(neng)力指(zhi)數也越(yue)大,電機的(de)(de)(de)功(gong)率(lv)也將越(yue)大,由此實現大排(pai)量、高(gao)揚程的(de)(de)(de)目的(de)(de)(de)。科尼樂公司在(zai)設(she)計時,還采(cai)用(yong)了高(gao)低壓切換的(de)(de)(de)功(gong)能(neng)(neng)設(she)計,以滿(man)足不同的(de)(de)(de)施工要求,在(zai)經濟(ji)狀態下,又能(neng)(neng)產生較大的(de)(de)(de)輸(shu)送(song)量,或(huo)者(zhe)以相(xiang)同的(de)(de)(de)電機功(gong)率(lv),產生較高(gao)的(de)(de)(de)出(chu)口壓力。