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Oil balancing system of reciprocating oil isolation membrane pump fluid end

A technology of diaphragm pump and liquid end, which is applied in variable capacity pump components, components of pumping devices for elastic fluids, pumps, etc., can solve problems such as pump failure, wear, and increased operating costs, and achieve improved The effect of service life, lower working temperature and sensitive response

Inactive Publication Date: 2008-08-20
SHANGHAI KAIQUAN PUMP IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the amount of oil replenishment is less than the required amount, the slurry will cause the wear of the liquid end, and when the wear is serious, the pump will not work normally; cost

Method used

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  • Oil balancing system of reciprocating oil isolation membrane pump fluid end

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Embodiment Construction

[0015] As shown in Figure 1, the air release valve 1 is located at the upper end of the cylinder body 2, the diaphragm 3 is located at the left side of the cylinder body 2, and the charge valve 4 is located at the lower end of the cylinder body 2, which is connected to the oil charge pump through pipelines and communicated with the oil circuit in the cylinder body , The cylinder body 2 is connected with the flow-passing parts through the oil isolation tank 5, the upper part of the oil isolation tank 5 is oil, the lower part is slurry, the oil level moves up and down continuously, and the upper and lower contacts a and b are set at the upper and lower limit positions of the oil level. When gas is generated at the top of the cylinder, a small amount of gas overflows from one-way valve A, one-way valve A closes, one-way valve B opens, and the gas is released from the release valve. The oil in the oil isolation tank 5 constantly flows away with the flowing slurry, the oil in the sy...

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Abstract

The invention relates to an oil balance system of a reciprocating oil separation diaphragm pump hydraulic end, in particular to the oil balance system of the reciprocating oil separation diaphragm pump which is suitable for delivering a high temperature and high pressure slurry with solid grains. The oil balance system comprises a cylinder body, a diaphragm, a deflation valve which is arranged on the upper end of the cylinder body and an oil supplementary valve which is arranged at the lower end of the cylinder body, and an oil separation tank. The oil balance system is characterized in that the oil separation diaphragm structure is adopted and the deflation system cooperates with the oil supplementary system so as to control the oil level in the separation tank to change within a safe range. The oil balance system of the invention has the beneficial effects of sensitive response, effectively controlling the oil level of the separation tank in the safe range when the oil supplementary pump supplements oil, preventing over-high or over-low oil level which causes the pump not to run normally, reducing the working temperature of the diaphragm and prolonging the service life of the diaphragm.

Description

technical field [0001] The invention relates to an oil balance system at the liquid end of a reciprocating oil isolation diaphragm pump, in particular to an oil balance system for a reciprocating oil isolation diaphragm pump suitable for transporting high temperature and high pressure slurry containing solid particles. Background technique [0002] Plunger pumps are generally used when transporting high-temperature and high-pressure media, but there is a certain amount of leakage, and diaphragm pumps can effectively solve the leakage problem. But diaphragms don't work well at high temperatures, so high temperatures must be addressed. Before the pump is started, there will be some air left in the pump chamber, and the oil in the pump chamber generally contains a small amount of gas. During the working process of the pump, these gases will gradually overflow and accumulate at the top of the pump chamber. If not discharged in time, it will affect the performance of the pump. w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/18F04B53/00F04B43/02
Inventor 李樯孟万里李春梅
Owner SHANGHAI KAIQUAN PUMP IND GROUP
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