一、潛水泵怎么使用
(一)使用環境要求
1、有安全可(ke)靠的電源。
2、出水(shui)管口(kou)與(yu)水(shui)池水(shui)面落差要小于揚程(cheng)。
3、要選擇相(xiang)對潔凈(jing)的水源(yuan)。
(二)啟動
1、11千瓦以下的潛水泵允許直(zhi)接啟(qi)動,13千瓦(wa)以上的潛(qian)水(shui)泵應配備降(jiang)壓(ya)啟(qi)動柜,來保護潛(qian)水(shui)泵的安全(quan)運行。
2.、為了避免(mian)潛(qian)水泵(beng)(beng)轉子瞬間上竄(cuan)及減小啟(qi)動(dong)負(fu)荷,潛(qian)水泵(beng)(beng)啟(qi)動(dong)時(shi)應把出口閥門行程關至(zhi)3/4處(chu)(留1/4氣(qi)隙(xi),以便放氣(qi)),待啟(qi)動(dong)出水后緩緩打(da)開(kai),至(zhi)水泵(beng)(beng)工況點控制在適當(dang)位置(zhi)。
3、啟動完畢開始運轉后,應(ying)加強監(jian)護及觀(guan)測水位(wei)變化,保證潛(qian)水泵(beng)(beng)在工況范圍內運行,待(dai)潛(qian)水泵(beng)(beng)運行平(ping)穩后方可投入正式運轉。
4、潛水(shui)泵第一次投入運行5小時后,停機迅速測量熱絕緣電阻,其值不(bu)低于0.5MΩ,才能(neng)繼(ji)續使(shi)用(yong)。
(三)運行
1、潛水泵(beng)應在設(she)計工況點工作,此(ci)時軸向力適中(zhong),泵(beng)效最(zui)高,最(zui)經濟可(ke)靠。
2、潛水泵(beng)每運行8小時要全(quan)面檢查一次,各個儀表有無變化,電路節點(dian)是(shi)否(fou)發(fa)熱,聲音是(shi)否(fou)正常,正常工作電流是(shi)否(fou)大于(yu)電機名牌的(de)額定值。
注意(yi),有下列情況之一的,應立即停泵:
1)泵的(de)工作電流忽然高出電機額定電流的(de)。
2)出水(shui)量(liang)不正常,間隙(xi)性出水(shui),含沙量(liang)加大。
3)電機絕(jue)緣電阻低(di)于0.5兆歐的(de)。
4)機組(zu)有(you)明顯的(de)噪音震(zhen)動加劇的(de)。
5)電網電壓不(bu)足,低于額定電壓5%的。
6)保險(xian)絲燒壞(huai)一相。
7)輸水管(guan)路損壞。
(四)停泵
潛(qian)水(shui)(shui)泵停機(ji)前,為防止水(shui)(shui)的倒流,在切(qie)斷電源的同時要關閉(bi)閥門,重(zhong)新啟動時間隔20分鐘以上。
二、潛水電泵使用注意事項
1、安裝漏電保護器
漏(lou)(lou)(lou)(lou)電(dian)(dian)(dian)保(bao)(bao)(bao)(bao)(bao)護器(qi)也叫保(bao)(bao)(bao)(bao)(bao)命器(qi),它的(de)作(zuo)用從“保(bao)(bao)(bao)(bao)(bao)命器(qi)”這三個字就可以(yi)理解。因為潛水泵在水下工作(zuo),容(rong)易漏(lou)(lou)(lou)(lou)電(dian)(dian)(dian)造成電(dian)(dian)(dian)能損失甚至引發觸電(dian)(dian)(dian)事(shi)故。如果(guo)裝有漏(lou)(lou)(lou)(lou)電(dian)(dian)(dian)保(bao)(bao)(bao)(bao)(bao)護器(qi),只要潛水泵漏(lou)(lou)(lou)(lou)電(dian)(dian)(dian)值超過(guo)(guo)漏(lou)(lou)(lou)(lou)電(dian)(dian)(dian)保(bao)(bao)(bao)(bao)(bao)護器(qi)的(de)動作(zuo)電(dian)(dian)(dian)流(liu)值(一般不超過(guo)(guo)30毫安),漏(lou)(lou)(lou)(lou)電(dian)(dian)(dian)保(bao)(bao)(bao)(bao)(bao)護器(qi)就會切斷潛水泵的(de)電(dian)(dian)(dian)源(yuan),避免漏(lou)(lou)(lou)(lou)電(dian)(dian)(dian)浪費電(dian)(dian)(dian)能,確保(bao)(bao)(bao)(bao)(bao)安全。
2、電源電壓異常莫開機
農村由于(yu)低(di)壓(ya)(ya)(ya)供電(dian)(dian)(dian)(dian)線路(lu)比(bi)較(jiao)長,線路(lu)的(de)末端電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)過(guo)(guo)低(di)是常有的(de)事。當(dang)相電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)低(di)于(yu)198伏,線電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)低(di)于(yu)342伏時(shi),潛水泵電(dian)(dian)(dian)(dian)機(ji)(ji)轉(zhuan)速下降,當(dang)達不到(dao)額(e)定(ding)轉(zhuan)速的(de)70%時(shi),啟動離心開(kai)關會閉合,造成啟動繞(rao)(rao)組長時(shi)間通電(dian)(dian)(dian)(dian)而發熱甚(shen)至燒壞繞(rao)(rao)組和電(dian)(dian)(dian)(dian)容器。相反,電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)過(guo)(guo)高引起電(dian)(dian)(dian)(dian)機(ji)(ji)過(guo)(guo)熱而燒壞繞(rao)(rao)組。因此(ci),潛水泵在(zai)作(zuo)業中(zhong),操作(zuo)者必須隨時(shi)觀察電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)值,若低(di)于(yu)額(e)定(ding)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)10%以下,高于(yu)額(e)定(ding)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)10%以上(shang),應(ying)使電(dian)(dian)(dian)(dian)機(ji)(ji)停(ting)止運轉(zhuan),找(zhao)出原(yuan)因并排除(chu)故障。
3、避免頻繁開關
不(bu)要頻繁地開關(guan)潛水泵,這(zhe)是因為電泵停轉時會產生回流,若(ruo)立即(ji)開機(ji),會使電機(ji)負載啟(qi)動(dong)(dong),導致啟(qi)動(dong)(dong)電流過大而燒(shao)壞繞(rao)組(zu)。由于啟(qi)動(dong)(dong)時電流很大,頻繁啟(qi)動(dong)(dong)也會燒(shao)壞潛水泵電動(dong)(dong)機(ji)繞(rao)組(zu)。
4、莫讓潛水電泵長期超負荷工作
為(wei)避免(mian)潛水電泵(beng)長期超負荷(he)工作,不(bu)要(yao)抽含沙量大的(de)(de)水并(bing)隨(sui)時觀(guan)察電流值是否在銘牌(pai)上規定(ding)的(de)(de)數值,若發現電流過大,應停機檢查。另外,電泵(beng)脫水運行的(de)(de)時間(jian)不(bu)宜過長,以免(mian)使(shi)電機過熱而燒(shao)毀。
5、電機的旋轉方向要正確
應(ying)搞清電(dian)機的(de)旋(xuan)轉(zhuan)方向(xiang),有許多類(lei)型的(de)潛水(shui)泵正轉(zhuan)和反(fan)轉(zhuan)時皆可出水(shui),但(dan)反(fan)轉(zhuan)時出水(shui)量小(xiao)、電(dian)流(liu)大,其(qi)反(fan)轉(zhuan)時間長了會(hui)損壞(huai)電(dian)機繞組。
6、電纜線安裝與潛水電泵的絕緣電阻要求
安(an)裝潛(qian)水(shui)泵(beng)時,電纜(lan)線(xian)要(yao)架空(kong),電源(yuan)線(xian)不要(yao)太長。潛(qian)水(shui)泵(beng)下水(shui)或提(ti)出(chu)時切勿使電纜(lan)受(shou)力,以免引起電源(yuan)線(xian)斷裂(lie)。潛(qian)水(shui)泵(beng)工作(zuo)時不要(yao)沉入泥(ni)中(zhong),否(fou)則會導(dao)致電機散(san)熱不良而燒壞電機繞(rao)組。安(an)裝時,電機的絕緣電阻(zu)不應低于0.5兆(zhao)歐(ou)。
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。