東(dong)莞市銳鑫(xin)機電有限(xian)公司
聯系(xi)人:劉君燕(yan)/13539086677
24小時服務熱線:13763247345
座機:400-1501660
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地址(zhi):東(dong)莞市虎門(men)鎮(zhen)捷(jie)東(dong)南路(lu)9號(hao)
B棟401
隨著現代工(gong)業的(de)(de)興起,以混(hun)凝土(tu)為(wei)主(zhu)材料的(de)(de)建設方式(shi)已(yi)經成(cheng)為(wei)了(le)建筑業施工(gong)的(de)(de)主(zhu)要構造之(zhi)一(yi),在各(ge)種(zhong)(zhong)工(gong)程施工(gong)建設中(zhong)占據(ju)了(le)很大(da)的(de)(de)比例,使(shi)得混(hun)凝土(tu)機械的(de)(de)發展經久不衰,且有(you)越(yue)演(yan)越(yue)烈的(de)(de)形勢。拖式(shi)混(hun)凝土(tu)泵,簡稱拖泵,是各(ge)種(zhong)(zhong)混(hun)凝土(tu)機械中(zhong)的(de)(de)一(yi)種(zhong)(zhong),用于混(hun)凝土(tu)施工(gong)中(zhong)的(de)(de)輸送和澆注(zhu)工(gong)作。
拖泵分類選型
37千(qian)(qian)(qian)(qian)瓦(wa)(目前(qian)國內(nei)標準混(hun)凝土(tu)泵(beng),37千(qian)(qian)(qian)(qian)瓦(wa)以下為細石砂漿泵(beng))、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(chai)油)、132千(qian)(qian)(qian)(qian)瓦(wa)、162千(qian)(qian)(qian)(qian)瓦(wa)(柴(chai)油)、174千(qian)(qian)(qian)(qian)瓦(wa)(柴(chai)油)等。
選擇(ze)多(duo)大(da)電(dian)(dian)機混(hun)凝土泵(beng),首先要考慮變壓器容量,其次考慮距離混(hun)凝土泵(beng)的(de)遠近(jin)和線徑大(da)小,以(yi)免壓降過大(da)造成(cheng)電(dian)(dian)流增(zeng)(zeng)高或(huo)跳閘停機,過大(da)功率造成(cheng)成(cheng)本增(zeng)(zeng)加和使用(yong)不便。電(dian)(dian)機過小,同時(shi)也滿足不了(le)工程(cheng)需要。
混凝(ning)(ning)土(tu)輸(shu)送(song)泵功率、混凝(ning)(ning)土(tu)輸(shu)送(song)泵出口壓力、混凝(ning)(ning)土(tu)輸(shu)送(song)泵輸(shu)送(song)量之間的關系
一臺混(hun)凝土輸(shu)送(song)泵的(de)電機(ji)功率是決(jue)定(ding)出口壓(ya)(ya)力(li)和(he)輸(shu)送(song)方量的(de)前提條(tiao)件,在電機(ji)功率一定(ding)的(de)情況(kuang)下(xia),壓(ya)(ya)力(li)的(de)升高必將使(shi)輸(shu)送(song)量降低(di);相反,降低(di)出口壓(ya)(ya)力(li),將會使(shi)輸(shu)送(song)量增加(jia)。
為(wei)了保(bao)證混凝土輸(shu)送(song)(song)泵既要(yao)有較大輸(shu)送(song)(song)量,又能有一定的(de)出(chu)口壓(ya)(ya)力和與(yu)之相(xiang)匹配的(de)經濟功(gong)(gong)率(lv),在混凝土輸(shu)送(song)(song)泵的(de)設計(ji)中,大都(dou)采用了恒功(gong)(gong)率(lv)柱塞(sai)泵;即恒功(gong)(gong)率(lv)值選(xuan)定后,當出(chu)口壓(ya)(ya)力升(sheng)高時,油泵輸(shu)出(chu)排量會自(zi)動降低,達到與(yu)功(gong)(gong)率(lv)設計(ji)相(xiang)對(dui)應的(de)值;如果既要(yao)達到出(chu)口壓(ya)(ya)力高,又想得到輸(shu)送(song)(song)量大的(de)目的(de)。惟(wei)一的(de)途徑(jing)就是(shi)增加電機功(gong)(gong)率(lv)。
因此(ci),在(zai)(zai)國家新標準(zhun)中,引用(yong)(yong)了混(hun)凝土輸送(song)(song)泵(beng)(beng)的(de)(de)(de)能力(li)指數(shu)概(gai)念(以MPa·m3/h為度量單位(wei));即混(hun)凝土輸送(song)(song)泵(beng)(beng)的(de)(de)(de)實際出口壓(ya)(ya)力(li)與每小時(shi)(shi)實際輸送(song)(song)量之乘積,該值越(yue)大(da)(da),其能力(li)指數(shu)也越(yue)大(da)(da),電(dian)機的(de)(de)(de)功率(lv)也將越(yue)大(da)(da),由此(ci)實現大(da)(da)排量、高(gao)揚程的(de)(de)(de)目的(de)(de)(de)。科(ke)尼樂公司在(zai)(zai)設計(ji)時(shi)(shi),還采用(yong)(yong)了高(gao)低壓(ya)(ya)切(qie)換(huan)的(de)(de)(de)功能設計(ji),以滿足不(bu)同(tong)的(de)(de)(de)施工要求,在(zai)(zai)經濟狀(zhuang)態下,又能產生較(jiao)(jiao)大(da)(da)的(de)(de)(de)輸送(song)(song)量,或(huo)者以相同(tong)的(de)(de)(de)電(dian)機功率(lv),產生較(jiao)(jiao)高(gao)的(de)(de)(de)出口壓(ya)(ya)力(li)。