管柱脱落的故障现象是：运行电流很低，基本上是电机的空载电流，除了有一股一股的气外，井口基本上无产液，正发循环时油套连通。The failure phenomenon of the string is: the running current is very low, basically the motor's no load current. Besides the gas w
莫诺螺杆泵配件
管柱脱落的故障现象是：运行电流很低，基本上是电机的空载电流，除了有一股一股的气外，井口基本上无产液，正发循环时油套连通。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.减少管柱脱落的措施有：将油管上扣扭矩由原来的值提高到值；采用油管螺纹垫片；定子上的装卸短节采用防松螺纹连接；采用油管锚或张力封隔器固定螺杆泵。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.
杆柱脱落Rod shedding杆柱脱落也是螺杆泵常发生的一种故障现象，表现为运行电流很低，井口也无产液，正反循环油套不连通，通过对扣或下入抽油杆打捞工具就可以进行处理来恢复生产。抽油杆脱落也有两种情况，一是脱扣，一是掳扣。造成脱扣的原因是停机后抽油杆柱扭转变形余能释放引起杆柱反转，可以采取在地面和抽油杆柱上安装防倒装置进行防止。造成杆柱掳扣的原因有三个：一个是稠油井在长时间关井后再启泵时，启动扭矩特别大，把螺纹损坏了；一个是油特别稠，螺杆泵长期在高扭矩下工作而把螺纹损坏；再有一个原因是定子部分脱胶，转子转不动造成的。
Ｅ、抽油杆扶正器E, sucker rod centralizer抽油杆扶正器由心轴和扶正筒组成，它接在两根抽油杆之间，被卡在两个抽油杆接箍之间。心轴也就是一要极短的抽油杆短节。扶正筒是一个内孔比心轴大１ＭＭ左右的空心塑料筒，外部有四个略比油管内径小的扶正翼，采取浇注成型。扶正筒可以围绕心轴转动，防止抽油杆旋转时与内壁接触而磨蚀油管，又可以让流体通过。The sucker rod centralizer is composed of the heart shaft and the upright cylinder, which is connected between the two sucker rods and is stuck between the two sucker rod hoops. The axis of the heart is also an extremely short rod short section. The centering cylinder is a hollow plastic tube inner hole Bixin shaft around 1MM, external four slightly smaller than the diameter of the tubing centralizer wing, adopt casting. The centralizer can revolve around the axis to prevent the sucker rod from touching the inner wall when it rotates, and it can also let the fluid pass through.
1、单螺杆泵严禁在泵腔无液体的情况下空运转，必须在启动前由泵进口把液体注入泵体后再启动螺杆泵，以免空转磨损螺杆泵定子。
2、启动单螺杆泵前还得必须先确定螺杆泵的运转方向，螺杆泵不能反转。
3、新安装或长时间停泵数天后的单螺杆泵，不能立即起动，也应该向泵体注入适量润滑剂或螺杆泵输送的液体，再用管子钳扳动螺杆泵几转后才可以起动。
4、不锈钢螺杆泵输送高粘度的液体或含有腐蚀性的介质后，应该用清水或者溶剂进行冲洗螺杆泵泵腔，防止堵塞以免造成下次起动螺杆泵时困难而损坏定子。
5、冬天使用单螺杆泵温度偏低不使用时应该排除泵体积液，防止泵体冻裂或者泵内结冰下次起动时拉坏定子。
6、使用过程中轴承箱内应定期加润滑油，发现轴端有渗流时，要及时处理或调换油封。
7、在运行中如发生异常情况，应立即停泵检查原因，排除故障。
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