東莞市銳鑫(xin)機電有(you)限公司
聯系人(ren):劉(liu)君燕/13539086677
24小時服務熱線:13763247345
座機:400-1501660
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網址:21yantai.cn
地址:東莞市虎門鎮捷東南路9號(hao)
B棟401
隨著現代(dai)工(gong)(gong)業的(de)(de)(de)興起,以混凝(ning)土(tu)(tu)為主材料的(de)(de)(de)建設方式已經(jing)成為了建筑業施(shi)工(gong)(gong)的(de)(de)(de)主要構造之(zhi)一(yi),在各種(zhong)(zhong)工(gong)(gong)程施(shi)工(gong)(gong)建設中(zhong)占據(ju)了很大(da)的(de)(de)(de)比(bi)例,使得(de)混凝(ning)土(tu)(tu)機械的(de)(de)(de)發展經(jing)久不衰(shuai),且有越(yue)演越(yue)烈(lie)的(de)(de)(de)形勢。拖式混凝(ning)土(tu)(tu)泵,簡(jian)稱(cheng)拖泵,是各種(zhong)(zhong)混凝(ning)土(tu)(tu)機械中(zhong)的(de)(de)(de)一(yi)種(zhong)(zhong),用于(yu)混凝(ning)土(tu)(tu)施(shi)工(gong)(gong)中(zhong)的(de)(de)(de)輸送和澆(jiao)注工(gong)(gong)作(zuo)。
拖泵分類選型
37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(目(mu)前國內標準混凝土泵,37千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)以下(xia)為細石(shi)砂漿泵)、45千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、55千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、75千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、90千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、110千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、130千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(柴(chai)油)、132千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(柴(chai)油)、174千(qian)(qian)(qian)(qian)瓦(wa)(wa)(wa)(wa)(柴(chai)油)等(deng)。
選擇(ze)多大(da)(da)電機(ji)混(hun)凝土泵(beng),首(shou)先要(yao)考慮(lv)變壓器容量,其次考慮(lv)距離混(hun)凝土泵(beng)的(de)遠(yuan)近(jin)和線徑大(da)(da)小,以免壓降過大(da)(da)造成電流增高或跳閘停(ting)機(ji),過大(da)(da)功率造成成本增加和使用不便。電機(ji)過小,同時(shi)也(ye)滿足不了工程需要(yao)。
混(hun)凝土輸送泵(beng)功率、混(hun)凝土輸送泵(beng)出(chu)口壓力、混(hun)凝土輸送泵(beng)輸送量之間的(de)關系
一臺混(hun)凝土輸送(song)(song)泵的電機功(gong)率(lv)是(shi)決(jue)定出口壓(ya)力(li)和輸送(song)(song)方量(liang)的前(qian)提條件,在電機功(gong)率(lv)一定的情況(kuang)下,壓(ya)力(li)的升高必將使(shi)輸送(song)(song)量(liang)降低;相反(fan),降低出口壓(ya)力(li),將會(hui)使(shi)輸送(song)(song)量(liang)增加。
為了保證混凝土輸(shu)送(song)泵(beng)既要(yao)有(you)較大輸(shu)送(song)量(liang),又(you)能有(you)一定的(de)出口(kou)壓力和與之相匹配的(de)經(jing)濟功(gong)(gong)率(lv)(lv),在混凝土輸(shu)送(song)泵(beng)的(de)設計中(zhong),大都采用了恒(heng)功(gong)(gong)率(lv)(lv)柱塞(sai)泵(beng);即(ji)恒(heng)功(gong)(gong)率(lv)(lv)值(zhi)選定后(hou),當(dang)出口(kou)壓力升(sheng)高時,油泵(beng)輸(shu)出排量(liang)會自動降低,達到(dao)(dao)與功(gong)(gong)率(lv)(lv)設計相對應(ying)的(de)值(zhi);如果既要(yao)達到(dao)(dao)出口(kou)壓力高,又(you)想得到(dao)(dao)輸(shu)送(song)量(liang)大的(de)目的(de)。惟一的(de)途徑(jing)就(jiu)是增加電機功(gong)(gong)率(lv)(lv)。
因此,在國家新(xin)標準中,引用(yong)了(le)混凝土(tu)輸送(song)泵的(de)(de)(de)能(neng)(neng)力(li)指(zhi)數概念(nian)(以MPa·m3/h為度(du)量(liang)單位);即(ji)混凝土(tu)輸送(song)泵的(de)(de)(de)實際出口(kou)壓力(li)與每小時實際輸送(song)量(liang)之乘(cheng)積,該(gai)值(zhi)越大(da)(da),其能(neng)(neng)力(li)指(zhi)數也越大(da)(da),電機(ji)的(de)(de)(de)功(gong)率(lv)(lv)也將越大(da)(da),由此實現大(da)(da)排量(liang)、高揚程的(de)(de)(de)目(mu)的(de)(de)(de)。科尼樂(le)公司(si)在設計時,還采用(yong)了(le)高低(di)壓切(qie)換的(de)(de)(de)功(gong)能(neng)(neng)設計,以滿足不同(tong)(tong)的(de)(de)(de)施(shi)工(gong)要求,在經濟狀態下,又能(neng)(neng)產生較大(da)(da)的(de)(de)(de)輸送(song)量(liang),或者以相同(tong)(tong)的(de)(de)(de)電機(ji)功(gong)率(lv)(lv),產生較高的(de)(de)(de)出口(kou)壓力(li)。