Beyond Petroleum Equipment

14

2021

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01

What is the reason for the leakage of the mud pump accessory packing? How to maintain it?

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The deterioration of the filling material for mud pump accessories is one of the main reasons for a large amount of water leakage and short service life of the pump filling material.

The deterioration of the filling material for mud pump accessories is one of the main reasons for a large amount of water leakage and short service life of the pump filling material. In addition, the reasons for this failure include loss of elasticity and poor quality of the filling material.
Among many fillers, asbestos fillers are currently relatively widely used. After drying thoroughly and hardening, blocky phenomena will form. The mud pump accessories will increase the contact area with the pump shaft, reduce pressure, and increase wear. The following is a specific introduction to the causes of pump packing leakage.
The filling replacement cycle is too long, resulting in aging of the filling material; Poor packaging quality, loose structure, and easy wear and tear. These are the reasons for the leakage of the mud pump accessory packing. At this point, it is necessary to replace the packaging. In addition, during the operation of the pump, if the packing gland is too tight, the packing will push the packing pump shaft, causing water in the water seal ring to fail due to insufficient cooling and lubrication, resulting in overheating and hardening of the packing. At this time, the mud pump accessories should tighten the packing gland until the water dribbles out.
The inner ring of the water seal ring of the mud pump accessory is too small, the number of small holes on the ring is insufficient or blocked, the installation position of the water seal ring is incorrect, and the water seal pipe is blocked; The small gap between the packing gland and the pump shaft can also cause water leakage in the pump packing. Packing is an important component of mud pump accessories, and its normal operation is closely related to packaging. Therefore, it is necessary to regularly check during daily use.
To ensure the long-term normal operation of drilling mud pumps and increase their service life, it is necessary to carry out daily inspection and protection work, and regularly inspect them. If abnormal mechanical phenomena are not detected, it will affect work and bring unnecessary trouble, so daily inspections cannot be ignored.

 

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