東莞(guan)市銳鑫機電有限公司
聯(lian)系人(ren):劉君燕/13539086677
24小時服務熱線:13763247345
座機:400-1501660
郵箱(xiang):[email protected]
網址:21yantai.cn
地址:東(dong)莞市虎門(men)鎮捷東(dong)南路9號
B棟401
隨著(zhu)現代工(gong)業(ye)的(de)(de)興起(qi),以混(hun)(hun)凝土為主(zhu)材料的(de)(de)建(jian)設方式已經成為了建(jian)筑業(ye)施(shi)工(gong)的(de)(de)主(zhu)要構造之一,在各(ge)種(zhong)工(gong)程施(shi)工(gong)建(jian)設中(zhong)(zhong)占據(ju)了很大的(de)(de)比(bi)例,使(shi)得混(hun)(hun)凝土機(ji)械的(de)(de)發展(zhan)經久(jiu)不衰,且有越演越烈的(de)(de)形勢。拖式混(hun)(hun)凝土泵(beng),簡稱拖泵(beng),是各(ge)種(zhong)混(hun)(hun)凝土機(ji)械中(zhong)(zhong)的(de)(de)一種(zhong),用于混(hun)(hun)凝土施(shi)工(gong)中(zhong)(zhong)的(de)(de)輸送和澆注工(gong)作(zuo)。
拖泵分類選型
37千(qian)(qian)(qian)(qian)瓦(wa)(目前國(guo)內標準混凝土泵,37千(qian)(qian)(qian)(qian)瓦(wa)以下為細(xi)石砂(sha)漿泵)、45千(qian)(qian)(qian)(qian)瓦(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(柴油(you))、132千(qian)(qian)(qian)(qian)瓦(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(柴油(you))、174千(qian)(qian)(qian)(qian)瓦(wa)(柴油(you))等(deng)。
選擇多大電(dian)機(ji)混(hun)凝土泵,首(shou)先要考(kao)慮變壓(ya)器容(rong)量,其次考(kao)慮距離混(hun)凝土泵的遠近和(he)(he)線(xian)徑大小,以免壓(ya)降過(guo)大造成電(dian)流增高(gao)或跳(tiao)閘停機(ji),過(guo)大功率造成成本增加和(he)(he)使用不便。電(dian)機(ji)過(guo)小,同時(shi)也滿足(zu)不了工程需要。
混凝土(tu)輸(shu)送(song)泵功(gong)率、混凝土(tu)輸(shu)送(song)泵出口壓(ya)力(li)、混凝土(tu)輸(shu)送(song)泵輸(shu)送(song)量(liang)之間的關(guan)系
一臺混凝土輸送泵的電機功率(lv)是(shi)決定出口(kou)壓(ya)力和輸送方量的前提條件,在電機功率(lv)一定的情況下,壓(ya)力的升(sheng)高(gao)必將(jiang)使輸送量降(jiang)(jiang)低;相反,降(jiang)(jiang)低出口(kou)壓(ya)力,將(jiang)會使輸送量增加。
為了保(bao)證(zheng)混凝(ning)土輸(shu)(shu)送(song)(song)(song)泵既(ji)要有較大(da)輸(shu)(shu)送(song)(song)(song)量(liang)(liang),又能有一(yi)定(ding)的出(chu)口壓(ya)力和與(yu)之(zhi)相匹(pi)配的經濟功(gong)率(lv),在混凝(ning)土輸(shu)(shu)送(song)(song)(song)泵的設計中,大(da)都采用(yong)了恒功(gong)率(lv)柱塞泵;即恒功(gong)率(lv)值選定(ding)后,當出(chu)口壓(ya)力升高時,油泵輸(shu)(shu)出(chu)排量(liang)(liang)會(hui)自動降低(di),達到與(yu)功(gong)率(lv)設計相對應的值;如果既(ji)要達到出(chu)口壓(ya)力高,又想得到輸(shu)(shu)送(song)(song)(song)量(liang)(liang)大(da)的目的。惟一(yi)的途徑(jing)就是(shi)增(zeng)加電(dian)機功(gong)率(lv)。
因此,在(zai)國家(jia)新標(biao)準中,引(yin)用了(le)混(hun)凝土(tu)輸送(song)(song)泵(beng)的(de)(de)能(neng)力(li)(li)指數概念(以MPa·m3/h為度量單(dan)位);即(ji)混(hun)凝土(tu)輸送(song)(song)泵(beng)的(de)(de)實(shi)際(ji)出口(kou)壓(ya)(ya)力(li)(li)與(yu)每小(xiao)時實(shi)際(ji)輸送(song)(song)量之乘積,該值(zhi)越大(da),其能(neng)力(li)(li)指數也越大(da),電機的(de)(de)功(gong)率也將越大(da),由此實(shi)現大(da)排量、高揚程的(de)(de)目的(de)(de)。科尼樂公(gong)司在(zai)設(she)計(ji)時,還采用了(le)高低壓(ya)(ya)切換的(de)(de)功(gong)能(neng)設(she)計(ji),以滿(man)足(zu)不(bu)同的(de)(de)施工要求,在(zai)經濟(ji)狀態下(xia),又能(neng)產(chan)生較大(da)的(de)(de)輸送(song)(song)量,或者以相同的(de)(de)電機功(gong)率,產(chan)生較高的(de)(de)出口(kou)壓(ya)(ya)力(li)(li)。