Mud-water separation equipment manufacturers explain the working process of drilling fluid sand pump

Release time:

May 11,2023

In fact, drilling fluid sand pump is one of the important equipment of drilling solid control equipment. Its main function is to provide drilling fluid with constant pressure and displacement for drilling fluid desander, desilter and jet mixing device. At present, the sand pumps used in the drilling site are large displacement centrifugal pumps, which can be divided into horizontal sand pumps and vertical sand pumps according to their structural forms.

In fact, drilling fluid sand pump is one of the important equipment of drilling solid control equipment. Its main function is to provide drilling fluid with constant pressure and displacement for drilling fluid desander, desilter and jet mixing device. At present, the sand pumps used in the drilling site are large displacement centrifugal pumps, which can be divided into horizontal sand pumps and vertical sand pumps according to their structural forms.
In addition. Because the drilling fluid containing mud and sand is easy to enter the stuffing box, the shaft sleeve is seriously worn, which is the main reason for the failure of the sand pump. The maple seal is a sealing device composed of a pair or several pairs of moving rings and static rings. It relies on the pressure of the elastic element and the sealing medium to generate appropriate pressure on the end face of the rotating static and dynamic ring, so that they fit closely, thereby maintaining a thin layer of liquid film to achieve the purpose of sealing. The mechanical seals used on sand pumps usually last only 5-6 months. The sealing surface of the shaft seal of the drilling fluid sand pump wears rapidly. Bottom failure. There are many reasons: it may be improper lubrication management, spring built-in and blocked by sand particles, resulting in ineffective movement of the moving ring, vibration of the pump body, etc.
Mud-water separation equipment manufacturers explain the working process of drilling fluid sand pump

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The reliability of sand pump equipment will directly affect the performance of drilling fluid sand removal and desilter, and then affect the normal operation of the whole drilling solid control system. The sand pump used in the drilling site is above the horizontal sand pump, and the failure of the horizontal sand pump is caused by the seal. Packing seal is characterized by simple structure, but short life, usually every day to add 1 filling section. At the same time, the degree of compaction of the packing is not well mastered, the shaft power increases if the packing is too tight, the packing heats up, and the packing and shaft sleeve are easily burned. If the pressure is too loose, the sealing effect will not be obtained, resulting in leakage of mud.

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