5分鐘前 湖北螺桿泵連軸桿承諾守信「螺耐斯」[螺耐斯10e361c]內(nèi)容: 7、配件壽命: 轉(zhuǎn)子泵:長(zhǎng),由于部件之間沒有摩擦,轉(zhuǎn)子泵的磨損件使用壽命很長(zhǎng),對(duì)過流部件的磨損主要來自與介質(zhì)中的磨蝕性和腐蝕性成分。 單螺桿泵:低,轉(zhuǎn)子和定子之間的摩擦,介質(zhì)中顆粒物等同時(shí)影響磨損件的使用壽命,偏心旋轉(zhuǎn)的轉(zhuǎn)子產(chǎn)生的應(yīng)力全部被定子承受,這樣加劇了部件之間的磨損,即使是輸送沒有任何顆粒物的介質(zhì),泵的定子也會(huì)逐漸磨損。 8、備件成本: 轉(zhuǎn)子泵:很低,轉(zhuǎn)子泵的可調(diào)轉(zhuǎn)子與可更換轉(zhuǎn)子尖使得備件成本降到了,可更換襯板和機(jī)械密封的成本也非常低配件成本只占整泵的10%~15%左右。 單螺桿泵:很高,由于螺桿泵廠家之間激烈的價(jià)格戰(zhàn),

輸送的液體粘稠度特別高也會(huì)導(dǎo)致機(jī)器不能吸上來液體,如果是因?yàn)橐后w粘度數(shù)值非常高,只能降低機(jī)器的轉(zhuǎn)動(dòng)速度,然后提升液體的溫度,這樣就可以使液體的粘度數(shù)值降低,或者可以轉(zhuǎn)而使用立式的機(jī)器,使用設(shè)備一段時(shí)間之后不能吸收液體,很有可能是因?yàn)槎ㄗ踊蜣D(zhuǎn)子出現(xiàn)損壞導(dǎo)致的,單螺桿泵廠家建議大家及時(shí)檢查更換全新的定子或轉(zhuǎn)子。進(jìn)出口子管道上面的閥門沒有開啟或開啟程度不夠,只需要開啟進(jìn)出口的閥門就可以了。

1、井下螺桿泵的工況,即井筒流體進(jìn)入敞開腔室的流量大小與敞開腔室的壓差和流體粘度等因素有關(guān)。1. The working co
nditi of the downhole screw pump, that is, the flow of the wellbore fluid into the open chamber, is related to the pssure difference of the open chamber and the viscosity of the fluid.A、壓差對(duì)工況的影響The effect of A and pssure difference on the working condition如果忽略流體的蒸汽壓力、井筒動(dòng)液面和泵吸入口的摩阻損失,則打開一個(gè)敞開的腔室所建立的生產(chǎn)壓差為0.1Mpa,只要在吸入口及腔室之間的壓降小于形成一個(gè)腔室所建立的壓差,井筒流體將全部充滿腔室,則螺桿泵可以達(dá)到其理論攝排量。

B、流體粘度對(duì)工況的影響The effect of B and fluid viscosity on the working condition隨著流體粘度的增加,由于產(chǎn)生較高的壓降使泵的排量下降。As the viscosity of the fluid increases, the displacement of the pump decreases as a result of high pssure drop.C、泵磨損影響Effect of C and pump wear螺桿泵的工作轉(zhuǎn)速通常為40至500r/min,為減少由于磨損而帶來的維修工作量,應(yīng)當(dāng)隨流體的磨蝕性增加而降低泵的轉(zhuǎn)速。研究表明,泵的磨損與流體流速成正比,但是低的轉(zhuǎn)速對(duì)井下泵的使用壽命又產(chǎn)生不利的影響。The working speed of the screw pump is usually 40 to 500r/min. In order to reduce the maintenance workload caused by wear, the speed of the pump should be reduced with the increase of the abrasive wear of the fluid. The study shows that the wear of the pump is proportio
nal to the flow velocity of the fluid, but the low speed of the pump has a negative effect on the life of the downhole pump.
