15962507131
15962507131
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News Center1.更換時(shi)(shi)，選用(yong)了與實(shi)際運(yun)(yun)行(xing)(xing)工(gong)況參數(shu)相接(jie)近的(de)離(li)(li)(li)(li)(li)心泵(beng)(beng)，保證了更換后(hou)的(de)泵(beng)(beng)始終(zhong)在(zai)狀態下運(yun)(yun)行(xing)(xing)。我(wo)們做了離(li)(li)(li)(li)(li)心泵(beng)(beng)更換前(qian)后(hou)效率(lv)對(dui)比(bi)實(shi)驗(yan)，實(shi)驗(yan)表明(ming)，更換低效、高耗離(li)(li)(li)(li)(li)心泵(beng)(beng)后(hou)，可(ke)提高泵(beng)(beng)效10％左(zuo)右。2.變頻(pin)節能技術的(de)應用(yong)。對(dui)設(she)計參數(shu)大于實(shi)際運(yun)(yun)行(xing)(xing)工(gong)況的(de)離(li)(li)(li)(li)(li)心泵(beng)(beng)，加裝(zhuang)變頻(pin)調(diao)速裝(zhuang)置后(hou)，始終(zhong)運(yun)(yun)行(xing)(xing)在(zai)區(qu)。3.在(zai)主要離(li)(li)(li)(li)(li)心泵(beng)(beng)上(shang)推(tui)廣應用(yong)節能的(de)永磁調(diao)速電機及雙功率(lv)電機等新(xin)型節能產(chan)品。4.離(li)(li)(li)(li)(li)心泵(beng)(beng)的(de)選擇。選用(yong)新(xin)泵(beng)(beng)時(shi)(shi)，應選大廠(chang)家生產(chan)的(de)泵(beng)(beng)，以保證離(li)(li)(li)(li)(li)心泵(beng)(beng)率(lv)。5.離(li)(li)(li)(li)(li)心泵(beng)(beng)的(de)維護。（1）要經常對(dui)離(li)(li)(li)(li)(li)心泵(beng)(beng)軸端(duan)密封進行(xing)(xing)檢查和調(diao)整，降低容積...
NBR丁(ding)氰(qing)橡膠密封(feng)(feng)圈:適(shi)(shi)合于(yu)石油系液壓(ya)油、甘醇(chun)(chun)系液壓(ya)油、二(er)酯系潤滑油、汽油、水、硅(gui)潤滑脂、硅(gui)油等介(jie)質中使用(yong)(yong)。是(shi)目(mu)前用(yong)(yong)途zui廣、成本zui低的橡膠密封(feng)(feng)件。不適(shi)(shi)用(yong)(yong)于(yu)極性(xing)溶(rong)劑(ji)之中（高溫(wen)泵機械(xie)密封(feng)(feng)），例如酮(tong)類、臭氧、硝基烴、MEK和氯仿。一般使用(yong)(yong)溫(wen)度范圍為-40~120℃。HNBR氫化丁(ding)氰(qing)橡膠密封(feng)(feng)圈:具有的抗(kang)腐蝕(shi)、抗(kang)撕(si)裂和抗(kang)壓(ya)縮變形特性(xing)，耐臭氧、耐陽(yang)光、耐天候性(xing)較好。比(bi)丁(ding)氰(qing)橡膠有更佳的抗(kang)磨性(xing)。適(shi)(shi)用(yong)(yong)于(yu)洗(xi)滌機械(xie)、汽車發動機系統及使用(yong)(yong)新(xin)型(xing)環保冷媒R134a的制冷系統中。不建議使用(yong)(yong)于(yu)醇(chun)(chun)類、...
多級泵(beng)的(de)檢(jian)修如(ru)果有(you)條件的(de)話，先看(kan)(kan)一(yi)遍制造廠的(de)維護(hu)說(shuo)明(ming)書及總裝配(pei)(pei)圖，看(kan)(kan)看(kan)(kan)有(you)哪些特殊的(de)地方需要注意。一(yi).解(jie)(jie)體(ti)時：1.拆止推軸(zhou)承前(qian)應利(li)用百分表(biao)測(ce)(ce)量出平衡盤間隙(xi)，并做好(hao)記(ji)錄；2.多級泵(beng)解(jie)(jie)體(ti)時必須將(jiang)各零件按原裝配(pei)(pei)順序做好(hao)記(ji)號，以(yi)免(mian)回(hui)裝時混亂(luan)、裝錯；3.不便于做記(ji)號的(de)小件（比如(ru)鍵(jian)）可與同級的(de)葉(xie)輪或導葉(xie)（中段）等放在一(yi)起(qi)。4.解(jie)(jie)體(ti)時可直觀感覺一(yi)下是否有(you)不正(zheng)常的(de)零件，比如(ru)配(pei)(pei)合松(song)動等。二.零件檢(jian)修：1.目測(ce)(ce)各零件表(biao)面是否正(zheng)常，各配(pei)(pei)合面必須無(wu)磕碰劃傷、無(wu)銹(xiu)蝕(shi)等；2.用量具實(shi)測(ce)(ce)關鍵(jian)配(pei)(pei)合部位(wei)公差是否...
目前我國(guo)(guo)電(dian)(dian)(dian)(dian)機(ji)(ji)生產企業(ye)眾(zhong)多，單一生產企業(ye)*普遍較低(di)(di)，市場集(ji)中(zhong)度不高。隨著中(zhong)國(guo)(guo)工業(ye)經濟的發展，電(dian)(dian)(dian)(dian)機(ji)(ji)得到廣泛(fan)應用(yong)(yong)。據統計，電(dian)(dian)(dian)(dian)機(ji)(ji)系(xi)統用(yong)(yong)電(dian)(dian)(dian)(dian)量(liang)約占(zhan)全(quan)國(guo)(guo)用(yong)(yong)電(dian)(dian)(dian)(dian)量(liang)的60%，其中(zhong)風機(ji)(ji)用(yong)(yong)電(dian)(dian)(dian)(dian)占(zhan)全(quan)國(guo)(guo)用(yong)(yong)電(dian)(dian)(dian)(dian)量(liang)的10.4%，泵(beng)類電(dian)(dian)(dian)(dian)機(ji)(ji)占(zhan)20.9%，壓縮機(ji)(ji)占(zhan)9.4%。但是，我國(guo)(guo)80%以上的電(dian)(dian)(dian)(dian)機(ji)(ji)產品效率比(bi)*進(jin)水平低(di)(di)2%-5%，電(dian)(dian)(dian)(dian)機(ji)(ji)系(xi)統效率比(bi)*進(jin)水平低(di)(di)10%-20%。因(yin)此，我國(guo)(guo)在提高電(dian)(dian)(dian)(dian)機(ji)(ji)系(xi)統效率、加強系(xi)統節能(neng)(neng)管理方面有著巨(ju)大需求。要(yao)為電(dian)(dian)(dian)(dian)動機(ji)(ji)。（高溫熱水循環(huan)泵(beng)）電(dian)(dian)(dian)(dian)動機(ji)(ji)在將電(dian)(dian)(dian)(dian)能(neng)(neng)轉換為機(ji)(ji)械能(neng)(neng)的同時，本身(shen)也損耗(hao)一部分能(neng)(neng)量(liang)，...
夏季是(shi)水泵使用頻率zui高(gao)的季節(jie)，對于(yu)農(nong)林業而言(yan)，由于(yu)勞(lao)動力成(cheng)本(ben)不(bu)斷(duan)升高(gao)，越來越多(duo)的人會選(xuan)(xuan)(xuan)擇水泵等機(ji)械排灌設施(shi)來代替(ti)人工(gong)作(zuo)業。zui近就常(chang)有(you)讀者(zhe)(zhe)水泵使用中(zhong)(zhong)的一(yi)(yi)些問題(ti)，記者(zhe)(zhe)從中(zhong)(zhong)選(xuan)(xuan)(xuan)取了幾個典(dian)型的問題(ti)向行(xing)(xing)業專家進行(xing)(xing)了咨詢并在這(zhe)里與(yu)大家分享。“動力配(pei)套不(bu)合理(li)”是(shi)目前在機(ji)械排灌中(zhong)(zhong)比較突(tu)出的現(xian)象，主要是(shi)“大馬(ma)拉小車”或“小馬(ma)拉大車”。比如，一(yi)(yi)臺水泵本(ben)應選(xuan)(xuan)(xuan)配(pei)17千(qian)瓦電動機(ji)，卻誤配(pei)成(cheng)22千(qian)瓦電動機(ji)，要是(shi)按(an)照年工(gong)作(zuo)3000小時計算，要多(duo)耗(hao)電1萬多(duo)千(qian)瓦時。這(zhe)就是(shi)所(suo)謂的“大馬(ma)拉小車”現(xian)象，不(bu)過這(zhe)種...
三(san)、引(yin)(yin)水(shui)(shui)(shui)(shui)(shui)(shui)方(fang)式(shi)(shi)(shi)的選(xuan)擇當(dang)(dang)機(ji)房靠近水(shui)(shui)(shui)(shui)(shui)(shui)源，水(shui)(shui)(shui)(shui)(shui)(shui)源含(han)沙(sha)量(liang)較(jiao)小，水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)變化幅度(du)(du)較(jiao)小，引(yin)(yin)水(shui)(shui)(shui)(shui)(shui)(shui)流量(liang)不大時，可(ke)選(xuan)用(yong)管(guan)(guan)式(shi)(shi)(shi)引(yin)(yin)水(shui)(shui)(shui)(shui)(shui)(shui)，岸坡較(jiao)陡時采用(yong)直管(guan)(guan)式(shi)(shi)(shi)，較(jiao)緩時用(yong)斜桿(gan)管(guan)(guan)式(shi)(shi)(shi)。當(dang)(dang)機(ji)房靠近水(shui)(shui)(shui)(shui)(shui)(shui)源，水(shui)(shui)(shui)(shui)(shui)(shui)源含(han)沙(sha)量(liang)較(jiao)大且岸坡巖基較(jiao)陡時，可(ke)選(xuan)用(yong)涵洞(dong)引(yin)(yin)水(shui)(shui)(shui)(shui)(shui)(shui)。當(dang)(dang)岸坡較(jiao)緩，出(chu)水(shui)(shui)(shui)(shui)(shui)(shui)建筑(zhu)物離水(shui)(shui)(shui)(shui)(shui)(shui)源較(jiao)遠時，可(ke)選(xuan)用(yong)明渠引(yin)(yin)水(shui)(shui)(shui)(shui)(shui)(shui)，以縮短壓力(li)(li)管(guan)(guan)道長度(du)(du)，降(jiang)低工程(cheng)造價。四、穿(chuan)墻管(guan)(guan)連接形式(shi)(shi)(shi)選(xuan)擇1.剛(gang)性連接對于(yu)取水(shui)(shui)(shui)(shui)(shui)(shui)泵站(zhan)，當(dang)(dang)機(ji)組采用(yong)落井(jing)式(shi)(shi)(shi)安裝方(fang)式(shi)(shi)(shi)（水(shui)(shui)(shui)(shui)(shui)(shui)泵和(he)動(dong)力(li)(li)機(ji)的基準(zhun)面(mian)(mian)(mian)均(jun)低于(yu)校核(he)洪水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)）或半落井(jing)式(shi)(shi)(shi)（水(shui)(shui)(shui)(shui)(shui)(shui)泵的基準(zhun)面(mian)(mian)(mian)低于(yu)校核(he)洪水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)，動(dong)力(li)(li)機(ji)的基準(zhun)面(mian)(mian)(mian)高于(yu)校核(he)洪水(shui)(shui)(shui)(shui)(shui)(shui)位(wei)）時，為了(le)...
軸封是防止(zhi)泵軸與殼體處泄(xie)漏(lou)而設置的(de)密(mi)封裝置。常用的(de)軸封形式有(you)填(tian)料(liao)密(mi)封、機(ji)械密(mi)封和(he)動(dong)(dong)力(li)封。往(wang)復泵的(de)軸封通常是填(tian)料(liao)密(mi)封。當輸送(song)不(bu)(bu)允泄(xie)漏(lou)介質(zhi)時。可采(cai)用隔膜(mo)式往(wang)復泵。旋(xuan)轉式泵（含葉片式泵、轉子泵等(deng)）的(de)軸封主要有(you)填(tian)料(liao)密(mi)封、機(ji)械密(mi)封和(he)動(dong)(dong)力(li)密(mi)封。1．填(tian)料(liao)密(mi)封填(tian)料(liao)密(mi)封結構簡單、價格便宜、維修方便，但泄(xie)漏(lou)量大功耗損失(shi)大。因(yin)此填(tian)料(liao)料(liao)密(mi)封用于輸送(song)一般介質(zhi)，如水；一般不(bu)(bu)適用于石油及化工介質(zhi)，特別是不(bu)(bu)能用在貴重、易爆(bao)和(he)有(you)毒(du)介質(zhi)中(zhong)。2．機(ji)械密(mi)封機(ji)械密(mi)封（也稱端(duan)面密(mi)封）的(de)密(mi)封效(xiao)果好(hao)，（高(gao)溫泵）泄(xie)漏(lou)量很(hen)小，...
軸(zhou)承(cheng)冷卻BTX進料泵(beng)(beng)(beng)在催化劑再生時(shi)，運(yun)行溫度接近上(shang)限，一(yi)般應(ying)(ying)對軸(zhou)承(cheng)箱進行冷卻，降低油溫。軸(zhou)封(feng)對軸(zhou)封(feng)的(de)(de)要求雖然高，但單端面機械(xie)密封(feng)已能滿足(zu)要求。不過因為(wei)壓(ya)力高，介質(zhi)粘度小，一(yi)般都應(ying)(ying)選(xuan)用內裝式平衡型機械(xie)密封(feng)。中心線支(zhi)撐(cheng)(cheng)橫鍵(jian)定(ding)位(wei)（熱油循(xun)環(huan)泵(beng)(beng)(beng)）臥式泵(beng)(beng)(beng)溫度超過177℃時(shi)，通(tong)常(chang)都要使用中心線支(zhi)撐(cheng)(cheng)的(de)(de)泵(beng)(beng)(beng)體(ti)，以(yi)避免泵(beng)(beng)(beng)體(ti)受熱后單向膨脹危及泵(beng)(beng)(beng)的(de)(de)正常(chang)運(yun)行。同時(shi)，支(zhi)撐(cheng)(cheng)面上(shang)應(ying)(ying)設有橫鍵(jian)固(gu)定(ding)泵(beng)(beng)(beng)的(de)(de)軸(zhou)向位(wei)置。耐(nai)磨密封(feng)環(huan)由(you)于介質(zhi)粘度低（2.1~3.1mPa.s），為(wei)減小內泄漏，提率，維(wei)持泵(beng)(beng)(beng)自愛溫度變化時(shi)的(de)(de)性能穩定(ding)...
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