東莞市銳(rui)鑫機(ji)電有限(xian)公司(si)
聯系人:劉君(jun)燕/13539086677
24小時服務熱線(xian):13763247345
座機:400-1501660
網址:21yantai.cn
地(di)址(zhi):東莞市虎門鎮捷東南路9號
B棟401
隨著(zhu)現代(dai)工(gong)業的(de)興起,以混(hun)(hun)凝土為主材料(liao)的(de)建設(she)(she)方式已經成為了(le)建筑業施(shi)工(gong)的(de)主要(yao)構造(zao)之一(yi)(yi),在各種(zhong)(zhong)工(gong)程施(shi)工(gong)建設(she)(she)中(zhong)(zhong)占據了(le)很大的(de)比(bi)例(li),使(shi)得混(hun)(hun)凝土機(ji)械的(de)發展經久(jiu)不衰,且(qie)有(you)越演越烈的(de)形勢。拖式混(hun)(hun)凝土泵(beng),簡稱拖泵(beng),是各種(zhong)(zhong)混(hun)(hun)凝土機(ji)械中(zhong)(zhong)的(de)一(yi)(yi)種(zhong)(zhong),用于(yu)混(hun)(hun)凝土施(shi)工(gong)中(zhong)(zhong)的(de)輸送和澆注工(gong)作。
拖泵分類選型
37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(目前國內標準混凝土泵,37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)以下(xia)為細石砂漿(jiang)泵)、45千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(柴油(you))、132千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(柴油(you))、174千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(柴油(you))等(deng)。
選擇多大(da)電機混(hun)(hun)凝土泵,首先要考(kao)慮變(bian)壓器容(rong)量,其次考(kao)慮距(ju)離(li)混(hun)(hun)凝土泵的遠近和線(xian)徑大(da)小,以免壓降過大(da)造(zao)成(cheng)電流增高或跳閘停(ting)機,過大(da)功率造(zao)成(cheng)成(cheng)本增加和使用不便。電機過小,同時也滿足不了(le)工程需要。
混凝(ning)(ning)土(tu)輸(shu)送(song)泵(beng)(beng)功率、混凝(ning)(ning)土(tu)輸(shu)送(song)泵(beng)(beng)出口壓力、混凝(ning)(ning)土(tu)輸(shu)送(song)泵(beng)(beng)輸(shu)送(song)量之間的關系
一臺混凝土(tu)輸送(song)泵的電機(ji)功(gong)率(lv)是決定(ding)出(chu)口壓(ya)力和輸送(song)方量的前提條件,在電機(ji)功(gong)率(lv)一定(ding)的情況(kuang)下,壓(ya)力的升(sheng)高必將使輸送(song)量降(jiang)低(di)(di);相反,降(jiang)低(di)(di)出(chu)口壓(ya)力,將會使輸送(song)量增加(jia)。
為了保證混凝土輸(shu)送(song)泵(beng)既要有(you)(you)較(jiao)大(da)(da)(da)輸(shu)送(song)量,又(you)能有(you)(you)一(yi)定(ding)的(de)出(chu)口(kou)(kou)壓(ya)力和(he)與(yu)之(zhi)相(xiang)匹配的(de)經濟功率(lv),在混凝土輸(shu)送(song)泵(beng)的(de)設(she)計(ji)中,大(da)(da)(da)都采用了恒功率(lv)柱塞泵(beng);即恒功率(lv)值(zhi)選定(ding)后,當出(chu)口(kou)(kou)壓(ya)力升高(gao)時,油泵(beng)輸(shu)出(chu)排量會(hui)自動(dong)降低,達(da)到與(yu)功率(lv)設(she)計(ji)相(xiang)對應的(de)值(zhi);如果既要達(da)到出(chu)口(kou)(kou)壓(ya)力高(gao),又(you)想得到輸(shu)送(song)量大(da)(da)(da)的(de)目(mu)的(de)。惟(wei)一(yi)的(de)途徑就(jiu)是增加電(dian)機功率(lv)。
因此,在國(guo)家(jia)新標準中,引用了混凝土輸送泵的(de)(de)能(neng)力指數概念(以(yi)(yi)MPa·m3/h為度(du)量單位(wei));即混凝土輸送泵的(de)(de)實(shi)(shi)際出口(kou)壓(ya)(ya)(ya)力與(yu)每(mei)小時(shi)(shi)實(shi)(shi)際輸送量之乘(cheng)積,該值越大,其(qi)能(neng)力指數也越大,電機的(de)(de)功率(lv)也將(jiang)越大,由此實(shi)(shi)現大排量、高揚程的(de)(de)目的(de)(de)。科尼(ni)樂(le)公司(si)在設(she)(she)計(ji)時(shi)(shi),還采用了高低壓(ya)(ya)(ya)切換的(de)(de)功能(neng)設(she)(she)計(ji),以(yi)(yi)滿足不(bu)同的(de)(de)施工要求,在經濟狀態(tai)下(xia),又(you)能(neng)產(chan)生較大的(de)(de)輸送量,或(huo)者以(yi)(yi)相同的(de)(de)電機功率(lv),產(chan)生較高的(de)(de)出口(kou)壓(ya)(ya)(ya)力。