Slurry pump suitable for pumping large-diameter slurry particles

Abstract

The invention discloses a slurry pump suitable for pumping large-diameter slurry particles. The slurry pump comprises a fluid end and a power end, a plurality of liquid pumping systems are arranged between the fluid end and the power end, and each liquid pumping system comprises a valve box body and a plunger; a liquid inlet is formed in the lower end of each valve box body, a liquid outlet is formed in the upper end of each valve box body, an inner cavity of the valve box body is formed in each valve box body, each valve box body is arranged at the fluid end, a liquid outlet valve is arranged at the upper end of the inner cavity of each valve box body, and a liquid inlet valve is arranged at the lower end of the inner cavity of each valve box body; the power end is provided with plunger left mounting holes in the left sides of all the valve box bodies, plunger right mounting holes are formed in the left side faces of all the valve box bodies, and the plungers are mounted in the plunger left mounting holes and the plunger right mounting holes. The liquid inlet amount of the slurry pump is guaranteed, the liquid outlet valves can be self-adjusted when slurry temporarily has high pressure, and the problem that the large-diameter slurry particles enter a sealing system and cause sealing failure in frequent movement of the plungers can be effectively prevented.

Description

technical field [0001] The invention relates to the technical field of mud pumps, in particular to a mud pump suitable for pumping mud particles with large diameters. Background technique [0002] Mud pump is a very important production equipment in the oil field industry and an important part of drilling equipment. It is mainly used for deep well and shallow well operations in oil fields. It can complete water blocking and oil displacement operations to oil wells, and can also be used for cement plugging during oil field workover. , channel sealing, well washing, sand washing and cementing operations, near and long-distance transportation of crude oil and pressure testing, etc. [0003] The plunger of the existing mud pump is made of metal materials. Since the plunger has to move repeatedly and withstand a certain high pressure, the plunger has high requirements for machining accuracy, especially when the medium contains sand with a large particle size. Reciprocating motio...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a mud pump suitable for extracting mud particles containing large diameters, so as to solve the problems in the above-mentioned background technology that if the mud pump leaks, whether it is lubricating oil leakage or component damage caused by uneven pressure in the cylinder , causing safety hazards

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