How to realize the automatic lubrication of the beam pumping unit?
Beam pumping unit is widely used in crude oil recovery and is an important part of artificial lift. The safe, reliable and long-term operation of beam pumping unit is related to oil well production and investors' income. In order to realize the stable operation of beam pumping unit, the timing and quantitative lubrication of each moving part is indispensable. At present, the common lubrication method of beam pumping unit is that workers hold the oil gun to climb to the lubrication point and inject grease manually. The main problems of this operation are as follows: 1. Shutdown operation is required, so crude oil production will be delayed. 2. Workers need to climb the upstream beam for climbing operation, there is a great potential safety hazard, and the labor intensity of workers is high. 3. The lubricating grease is not filled timely and insufficient, which leads to the damage of the pumping unit and affects the service life of the equipment.
In view of these problems, Shengji group has developed a new type of beam pumping unit automatic lubrication system, which can automatically inject grease into the middle seat bearing, tail seat bearing and crank pin bearing of the pumping unit at fixed time and quantity, which perfectly solves this oilfield production problem.
The working principle of the automatic lubrication device is that the DC motor drives the gear to decelerate, the plunger makes reciprocating motion through the eccentric wheel, the lubricant enters the lubrication system through the oil outlet through the one-way valve through the oil suction and discharge process, and the lubricant is injected from the oil outlet one by one through the progressive distributor according to the specified sequence and sent to each lubrication point. The process is fully automatic control and easy to operate. It can not only realize continuous oil injection, but also inject oil regularly and quantitatively according to the needs to fully lubricate the lubricating points.
The automatic lubrication system adopts progressive distributor. According to the needs of different grease quantity of middle seat assembly, tailstock assembly and left and right crank pin assembly, the flow rate is 2:2:1. The total displacement is 3ml/min, the middle seat assembly is 1ml/min, the tailstock assembly is 1ml/min, the left and right crank pin assemblies are 0.5ml/min, and the lubrication is not uneven.
The whole system adopts modular design and can be installed on all beam pumping units. It is easy to install, transport and operate.