一、潛水泵怎么使用
(一)使用環境要求
1、有安全可靠的電源(yuan)。
2、出水管(guan)口與水池水面落(luo)差要(yao)小于揚程。
3、要選擇相對潔凈的(de)水源。
(二)啟動
1、11千瓦以下的潛水泵允(yun)許直接啟(qi)動,13千瓦(wa)以上的(de)潛(qian)水(shui)泵(beng)應配備降壓啟(qi)動柜,來保護(hu)潛(qian)水(shui)泵(beng)的(de)安(an)全(quan)運行。
2.、為了避免(mian)潛水(shui)泵轉子瞬(shun)間上竄及減小啟動負荷,潛水(shui)泵啟動時(shi)應把(ba)出口閥門行(xing)程關至3/4處(chu)(留1/4氣隙,以便放(fang)氣),待(dai)啟動出水(shui)后緩(huan)緩(huan)打開,至水(shui)泵工況點控(kong)制(zhi)在(zai)適當位(wei)置。
3、啟動完畢開始運(yun)(yun)轉后,應(ying)加強監護及觀測(ce)水位(wei)變(bian)化,保(bao)證潛水泵(beng)在工況范圍內運(yun)(yun)行(xing),待(dai)潛水泵(beng)運(yun)(yun)行(xing)平穩后方可(ke)投入正式運(yun)(yun)轉。
4、潛水泵第一(yi)次投入運行5小時后,停(ting)機迅速測量熱(re)絕緣電阻,其值不(bu)低于0.5MΩ,才能繼(ji)續使用。
(三)運行
1、潛水(shui)泵應(ying)在(zai)設計工況(kuang)點工作,此(ci)時軸向(xiang)力適中,泵效(xiao)最(zui)(zui)高,最(zui)(zui)經濟(ji)可靠。
2、潛水泵每運行8小時(shi)要全面(mian)檢查(cha)一次,各個儀表(biao)有無變(bian)化,電路節點是否(fou)發(fa)熱,聲(sheng)音是否(fou)正常(chang),正常(chang)工作電流是否(fou)大(da)于電機名牌的額(e)定值。
注意(yi),有下列情況之一的(de),應立即停泵(beng):
1)泵(beng)的(de)工作電(dian)流忽然高出電(dian)機(ji)額定電(dian)流的(de)。
2)出水(shui)量不正常,間隙性出水(shui),含(han)沙量加大。
3)電機絕緣電阻(zu)低于0.5兆歐的(de)。
4)機組有明顯(xian)的噪(zao)音震動加劇的。
5)電(dian)網電(dian)壓(ya)不足,低于(yu)額定電(dian)壓(ya)5%的。
6)保(bao)險(xian)絲燒(shao)壞一相。
7)輸水(shui)管路損壞。
(四)停泵
潛水(shui)(shui)泵停機前,為防(fang)止水(shui)(shui)的倒流(liu),在(zai)切斷電(dian)源的同(tong)時要關(guan)閉閥(fa)門,重(zhong)新啟動時間隔(ge)20分鐘以(yi)上。
二、潛水電泵使用注意事項
1、安裝漏電保護器
漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)護(hu)器也叫保(bao)命器,它的(de)作用(yong)從(cong)“保(bao)命器”這三(san)個字就可以(yi)理解。因(yin)為潛水(shui)泵在水(shui)下工作,容易(yi)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)造成電(dian)(dian)(dian)(dian)(dian)能損失甚至引發觸電(dian)(dian)(dian)(dian)(dian)事(shi)故。如果裝有漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)護(hu)器,只要(yao)潛水(shui)泵漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)值(zhi)超(chao)過(guo)(guo)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)護(hu)器的(de)動(dong)作電(dian)(dian)(dian)(dian)(dian)流值(zhi)(一(yi)般不超(chao)過(guo)(guo)30毫(hao)安),漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)護(hu)器就會切斷(duan)潛水(shui)泵的(de)電(dian)(dian)(dian)(dian)(dian)源,避免(mian)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)浪(lang)費電(dian)(dian)(dian)(dian)(dian)能,確保(bao)安全。
2、電源電壓異常莫開機
農(nong)村由(you)于(yu)低壓(ya)供電(dian)(dian)(dian)(dian)線路(lu)比較長(chang),線路(lu)的末端電(dian)(dian)(dian)(dian)壓(ya)過(guo)(guo)低是常有的事。當相電(dian)(dian)(dian)(dian)壓(ya)低于(yu)198伏,線電(dian)(dian)(dian)(dian)壓(ya)低于(yu)342伏時(shi)(shi),潛(qian)水泵(beng)電(dian)(dian)(dian)(dian)機轉(zhuan)速下降(jiang),當達不到額(e)定(ding)轉(zhuan)速的70%時(shi)(shi),啟(qi)(qi)動離心開關會閉合,造成啟(qi)(qi)動繞組(zu)長(chang)時(shi)(shi)間通電(dian)(dian)(dian)(dian)而發熱甚至(zhi)燒(shao)壞繞組(zu)和電(dian)(dian)(dian)(dian)容器(qi)。相反,電(dian)(dian)(dian)(dian)壓(ya)過(guo)(guo)高(gao)引起電(dian)(dian)(dian)(dian)機過(guo)(guo)熱而燒(shao)壞繞組(zu)。因此,潛(qian)水泵(beng)在作(zuo)業中,操作(zuo)者必須隨時(shi)(shi)觀察(cha)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓(ya)值,若低于(yu)額(e)定(ding)電(dian)(dian)(dian)(dian)壓(ya)10%以(yi)下,高(gao)于(yu)額(e)定(ding)電(dian)(dian)(dian)(dian)壓(ya)10%以(yi)上(shang),應(ying)使電(dian)(dian)(dian)(dian)機停(ting)止運轉(zhuan),找出(chu)原因并排除故障(zhang)。
3、避免頻繁開關
不要頻(pin)繁地開關(guan)潛(qian)水泵,這是因為電(dian)泵停轉(zhuan)時(shi)會產生(sheng)回流,若立即(ji)開機(ji)(ji),會使電(dian)機(ji)(ji)負載啟動(dong),導致啟動(dong)電(dian)流過大而燒壞繞組。由于啟動(dong)時(shi)電(dian)流很大,頻(pin)繁啟動(dong)也(ye)會燒壞潛(qian)水泵電(dian)動(dong)機(ji)(ji)繞組。
4、莫讓潛水電泵長期超負荷工作
為(wei)避免(mian)潛水(shui)電泵長(chang)期超負(fu)荷工(gong)作(zuo),不要抽(chou)含沙量大(da)的(de)水(shui)并隨時(shi)(shi)觀察電流值是否在銘牌上規(gui)定的(de)數值,若發現電流過(guo)大(da),應停機檢查(cha)。另外,電泵脫水(shui)運行的(de)時(shi)(shi)間(jian)不宜過(guo)長(chang),以免(mian)使(shi)電機過(guo)熱(re)而燒毀。
5、電機的旋轉方向要正確
應(ying)搞清電機(ji)的旋轉(zhuan)(zhuan)方向(xiang),有許多類(lei)型的潛水(shui)泵正轉(zhuan)(zhuan)和(he)反轉(zhuan)(zhuan)時皆可出(chu)水(shui),但反轉(zhuan)(zhuan)時出(chu)水(shui)量(liang)小、電流大,其反轉(zhuan)(zhuan)時間長(chang)了(le)會損(sun)壞電機(ji)繞組。
6、電纜線安裝與潛水電泵的絕緣電阻要求
安裝(zhuang)潛(qian)(qian)水(shui)泵時(shi),電(dian)纜線要架空(kong),電(dian)源(yuan)線不(bu)要太長。潛(qian)(qian)水(shui)泵下(xia)水(shui)或(huo)提出時(shi)切勿使電(dian)纜受力,以免引起電(dian)源(yuan)線斷裂。潛(qian)(qian)水(shui)泵工作時(shi)不(bu)要沉(chen)入泥中,否則會導致電(dian)機(ji)散熱不(bu)良而燒壞電(dian)機(ji)繞組。安裝(zhuang)時(shi),電(dian)機(ji)的(de)絕緣電(dian)阻不(bu)應低(di)于0.5兆(zhao)歐。
7、勤查勤看發現問題及時修復
平時要經常檢查電機,如發現下蓋有裂紋、橡膠密封環損壞或失效等,應及時更換或修復,避免水滲入潛水泵。