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        消防泵的自檢方式

        文字:[大][中][小] 2017-10-5    瀏覽次數:1613    

          自(zi)檢方(fang)(fang)式(shi)(shi)為(wei)消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)給水系統中(zhong)(zhong)消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵的(de)(de)日常檢測提供了一種方(fang)(fang)法。在消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵自(zi)檢中(zhong)(zhong),不僅可防(fang)(fang)(fang)(fang)(fang)止消(xiao)(xiao) 防(fang)(fang)(fang)(fang)(fang)泵的(de)(de)銹蝕卡死(si),還(huan)可對(dui)電(dian)機(ji)過(guo)載、短路、過(guo)壓、缺相、欠壓、過(guo)熱(re)等作出(chu)報警。消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵的(de)(de)自(zi)檢對(dui)提高系統的(de)(de)管理(li)(li)水平不失(shi)為(wei)一種技(ji)術進步(bu)。在2 種消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵自(zi)檢方(fang)(fang)式(shi)(shi)中(zhong)(zhong),均能體現出(chu)自(zi)檢對(dui)消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵的(de)(de)維(wei)護作用(yong),但低(di)速自(zi)檢方(fang)(fang)式(shi)(shi)僅運行(xing)了消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵啟動中(zhong)(zhong)的(de)(de)一個初(chu)級階段,不能完全反(fan)映出(chu)今后消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵實際運行(xing)的(de)(de)工(gong)況(kuang)。此外(wai),消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵自(zi)檢的(de)(de)結果反(fan)饋(kui)到(dao)消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)控制(zhi)中(zhong)(zhong)心后,需要人(ren)工(gong)作出(chu)進一步(bu)的(de)(de)判斷。故消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵自(zi)檢方(fang)(fang)式(shi)(shi)不能完全代替人(ren)工(gong)對(dui)消(xiao)(xiao)防(fang)(fang)(fang)(fang)(fang)泵的(de)(de)維(wei)護管理(li)(li)。

          自檢方(fang)式的分析

          常(chang)速(su)自(zi)檢(jian)(jian)方(fang)式(shi)(shi)(shi)在(zai)一(yi)定的(de)(de)(de)(de)時(shi)間(jian)內模擬了消(xiao)(xiao)(xiao)防(fang)(fang)給(gei)水的(de)(de)(de)(de)實際工(gong)況。其檢(jian)(jian)測(ce)的(de)(de)(de)(de)是消(xiao)(xiao)(xiao)防(fang)(fang)泵啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)、正常(chang)運(yun)行的(de)(de)(de)(de)全過程。而在(zai)管路設計(ji)上(shang)(shang)需作(zuo)(zuo)改進。最重(zhong)要(yao)的(de)(de)(de)(de)是要(yao)防(fang)(fang)止(zhi)旁通管路上(shang)(shang)的(de)(de)(de)(de)電(dian)磁閥(fa)故障,必須做(zuo)到(dao)在(zai)自(zi)檢(jian)(jian)時(shi)打開,自(zi)檢(jian)(jian)完(wan)成(cheng)后(hou)及時(shi)關閉(bi)。低(di)速(su)自(zi)檢(jian)(jian)方(fang)式(shi)(shi)(shi)不(bu)需對消(xiao)(xiao)(xiao)防(fang)(fang)泵的(de)(de)(de)(de)管路作(zuo)(zuo)改動(dong)(dong)(dong)(dong),但其檢(jian)(jian)測(ce)的(de)(de)(de)(de)僅是消(xiao)(xiao)(xiao)防(fang)(fang)泵正常(chang)工(gong)況中的(de)(de)(de)(de)一(yi)個階(jie)段(duan)。消(xiao)(xiao)(xiao)防(fang)(fang)泵可分為直接啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)和間(jian)接啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong),功率較大的(de)(de)(de)(de)需要(yao)間(jian)接啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)。而間(jian)接啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)有Y/ △降壓(ya)啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)、自(zi)耦降壓(ya)啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)、軟啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)器啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)等方(fang)式(shi)(shi)(shi)。在(zai)消(xiao)(xiao)(xiao)防(fang)(fang)泵運(yun)行中,軟啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)器啟(qi)(qi)(qi)動(dong)(dong)(dong)(dong)僅是消(xiao)(xiao)(xiao)防(fang)(fang)泵運(yun)行的(de)(de)(de)(de)一(yi)個前期(qi)階(jie)段(duan),其后(hou)才是正常(chang)的(de)(de)(de)(de)運(yun)行。變頻(pin)方(fang)法(fa)也(ye)未能(neng)運(yun)行到(dao)工(gong)頻(pin)階(jie)段(duan)。但對于防(fang)(fang)止(zhi)消(xiao)(xiao)(xiao)防(fang)(fang)泵的(de)(de)(de)(de)銹蝕,低(di)速(su)自(zi)檢(jian)(jian)方(fang)式(shi)(shi)(shi)還是有一(yi)定的(de)(de)(de)(de)作(zuo)(zuo)用。相對而言,它(ta)具有低(di)頻(pin)驅動(dong)(dong)(dong)(dong)、低(di)速(su)轉動(dong)(dong)(dong)(dong)、設備低(di)功耗運(yun)行的(de)(de)(de)(de)特(te)點。

          自檢方式的比較

          在消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)自(zi)檢(jian)(jian)方(fang)(fang)式(shi)(shi)中(zhong)(zhong),常速(su)(su)自(zi)檢(jian)(jian)方(fang)(fang)式(shi)(shi)和低速(su)(su)自(zi)檢(jian)(jian)方(fang)(fang)式(shi)(shi)均在消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)的(de)(de)(de)(de)維護(hu)中(zhong)(zhong)起到了一(yi)定(ding)的(de)(de)(de)(de)作用(yong)。從維護(hu)管理的(de)(de)(de)(de)角度看,它們都可(ke)在消(xiao)(xiao)(xiao)防給水(shui)(shui)系(xi)統(tong)中(zhong)(zhong)運(yun)用(yong)。相(xiang)對而(er)言,常速(su)(su)自(zi)檢(jian)(jian)方(fang)(fang)式(shi)(shi)能反映出消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)實(shi)際(ji)的(de)(de)(de)(de)運(yun)行工(gong)況(kuang)。從消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)故障(zhang)原因的(de)(de)(de)(de)角度看,消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)長期不用(yong)造成(cheng)的(de)(de)(de)(de)故障(zhang)主要(yao)是泵(beng)(beng)(beng)(beng)機組軸的(de)(de)(de)(de)咬合問(wen)題。電機啟(qi)動不完(wan)全(quan)的(de)(de)(de)(de)工(gong)況(kuang)問(wen)題較少,故過分強調消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)完(wan)整(zheng)工(gong)況(kuang)的(de)(de)(de)(de)運(yun)行,其意義不是很(hen)大。常速(su)(su)自(zi)檢(jian)(jian)方(fang)(fang)式(shi)(shi)適(shi)(shi)用(yong)于(yu)消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)從消(xiao)(xiao)(xiao)防水(shui)(shui)池吸水(shui)(shui)的(de)(de)(de)(de)情(qing)況(kuang),設(she)計中(zhong)(zhong)應合理考慮管路的(de)(de)(de)(de)布置。在運(yun)行中(zhong)(zhong)存(cun)在一(yi)定(ding)的(de)(de)(de)(de)問(wen)題,很(hen)快(kuai)可(ke)造成(cheng)超壓,在工(gong)程中(zhong)(zhong)應用(yong)不是很(hen)合適(shi)(shi)。而(er)常速(su)(su)自(zi)檢(jian)(jian)方(fang)(fang)式(shi)(shi)和低速(su)(su)自(zi)檢(jian)(jian)方(fang)(fang)式(shi)(shi)各有(you)其特點。低速(su)(su)自(zi)檢(jian)(jian)方(fang)(fang)式(shi)(shi)雖對消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)的(de)(de)(de)(de)運(yun)行檢(jian)(jian)測工(gong)況(kuang)不全(quan)面(mian),但對消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)管路的(de)(de)(de)(de)設(she)計無(wu)特殊要(yao)求(qiu),基本上可(ke)以適(shi)(shi)用(yong)于(yu)消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)自(zi)檢(jian)(jian)的(de)(de)(de)(de)技(ji)術要(yao)求(qiu)。它較適(shi)(shi)用(yong)于(yu)消(xiao)(xiao)(xiao)防泵(beng)(beng)(beng)(beng)直接從市政管網(wang)吸水(shui)(shui)的(de)(de)(de)(de)情(qing)況(kuang)。

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