5分鐘前 武漢莫諾螺桿泵配件價格合理「多圖」[螺耐斯10e361c]內(nèi)容：管柱脫落是自由式管柱結(jié)構(gòu)經(jīng)常發(fā)生的一種現(xiàn)象，這是由于正常運轉(zhuǎn)時轉(zhuǎn)子旋轉(zhuǎn)對定子產(chǎn)生的摩擦扭矩方向?qū)嶋H上是定子及油管的連接螺紋的卸扣方向，如果摩擦力矩大于油管扣的上扣扭矩，油管就脫扣。當(dāng)尾管很重時，還會出現(xiàn)螺紋擄扣。當(dāng)管柱脫落時，通過作業(yè)重新連接好就能恢復(fù)生產(chǎn)。如果未發(fā)生螺紋擄扣，可以采取對扣方式打撈，如果發(fā)生擄扣，必須下打撈工具進(jìn)行打撈。Column shedding is a common phenomenon of free tube structure, which is due to the direction of rotation of the friction torque generated by the stator rotor during normal operation is actually a stator and tubing connection1 screw shackle direction, if the friction torque is greater than the pipe le on torque, oil pipe tripping. When the tail pipe is very heavy, there will also be a thread caption. When the pipe column falls off, the production can be restored by reconnecting the work. If the le is not threaded, it can be salvaged by the way of the le. If the le occurs, the fishing tool must be salvaged.

管柱脫落的故障現(xiàn)象是：運行電流很低，基本上是電機的空載電流，除了有一股一股的氣外，井口基本上無產(chǎn)液，正發(fā)循環(huán)時油套連通。The failure phenomenon of the string is: the running current is very low, basically the motor's no load current. Besides the gas with a single strand of gas, the wellhead basically has no liquid production, and the oil sleeve is connected when circulating.減少管柱脫落的措施有：將油管上扣扭矩由原來的值提高到值；采用油管螺紋墊片；定子上的裝卸短節(jié)采用防松螺紋連接；采用油管錨或張力封隔器固定螺桿泵。The measures to reduce the falling off of the pipe string are as follows: increase the torque from the original value to the maximum value; use the oil pipe screw gasket; the loading and unloading joint on the stator is connected by loosening screw thread; and use the oil pipe anchor or tension packer to fix the screw pump.

定轉(zhuǎn)子過早磨損Premature wear of fixed rotor定轉(zhuǎn)子過早磨損主要是由于定轉(zhuǎn)子的間隙過小引起的。The premature wear of the fixed rotor is mainly caused by the small gap between the fixed rotor and the rotor.油管與抽油桿柱磨損Oil pipe and rod string wear油管與抽油桿柱磨損的原因一是因為井斜抽油桿貼在油管壁上引起的，可以通過加抽油桿扶正器使抽油桿柱居中來減輕或消除，另一個原因是定轉(zhuǎn)子不同心及轉(zhuǎn)子的偏心運動造成的，在定子以上加一節(jié)內(nèi)徑較大的回轉(zhuǎn)筒即可避免。Tubing and sucker rod wear reason is because the deviation of sucker rod attached to the tubing wall caused by heating, pumping rod centralizer make the rod center to reduce or eliminate, another reason is caused by the eccentric motion of the rotor and the rotor are not concentric, avoid a day the diameter of rotary cylinder in the stator can be larger than.

單螺桿泵工作時，兩端分別作用著液體的吸排壓力，因此對螺桿要產(chǎn)生軸向推力。螺桿泵廠家建議對于壓差小于10千克力/cm2的小型泵，可以采用止推軸承。此外，還通過主動螺桿的中央油孔將高壓油引入各螺桿軸套的底部，從而在螺桿下端產(chǎn)生一個與軸向推力方向相反的平衡推力。

單螺桿泵和其它容積泵一樣，當(dāng)泵的排出口完全封閉時，泵內(nèi)的壓力就會上升到使泵損壞或使電動機過載的危險程度。所以，螺桿泵廠家建議使用時在泵的吸排口處，就必須設(shè)置安全閥。