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A pressure compensation system

A technology of pressure compensation and pressure, which is applied in the field of hydraulic system oil tank pressure regulation, and can solve the problem of low compensation sensitivity

Active Publication Date: 2022-03-01
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, due to the resistance of the movement itself or the jamming of impurities, it will cause the problem of low compensation sensitivity

Method used

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0028] Please refer to Figure 1 to Figure 3 , the pressure compensation system provided by this application may include: pressure tracking valve 5, compensator 6, drive pump 1, first accumulator 4, check valve 3, overflow valve 7, second accumulator 8, two-position Three-way reversing valve 2, fuel tank 10.

[0029] The pressure tracking valve 5 has a working port A, a target port X, an oil return port T, and an oil inlet P. Among them, the working port A is connected to the oil t...

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Abstract

The application discloses a pressure compensation system, which includes a compensator, a drive pump, a first accumulator and a pressure tracking valve. The pressure tracking valve has a target port X, an oil return port T, an oil inlet P and a The working port A connected to the oil tank, the target port X is connected to the compensator, the oil return port T is connected to the inlet of the driving pump, the oil inlet P is connected to the outlet of the driving pump, and the interface of the first accumulator is set at the oil inlet P On the pipeline between the outlet of the driving pump. The pressure compensation system provided by this application uses a pressure tracking valve to adjust the pressure of the working port A to always follow the pressure of the target port X, so as to ensure that the pressure of the oil tank of the hydraulic system always follows the change of the downhole environmental pressure.

Description

technical field [0001] The present application relates to the technical field of hydraulic system oil tank pressure adjustment, and more specifically, relates to a pressure compensation system. Background technique [0002] Deep well electromechanical equipment generally has a hydraulic system. In order to ensure that these components are not damaged by the pressure of deep water, pressure balance compensation measures must be taken, that is, when the liquid filled in the hydraulic system shrinks under the deep well pressure, use the pressure The compensator compensates the liquid medium for the hydraulic system; when the water depth decreases and the pressure reduces the expansion of the liquid medium, the excess liquid medium in the hydraulic system can flow back into the pressure compensator. [0003] Pressure compensators in the prior art generally adopt the forms of various springs, compressed gas, and bellows. However, in practical applications, due to the resistance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B1/02F15B11/05F15B13/02
CPCF15B1/025F15B11/05F15B13/02F15B13/026F15B2211/212F15B2211/465F15B2211/625
Inventor 刘伟周赛群肖前龙胡骞袁佳莹杨阳谢永洋
Owner CHINA RAILWAY CONSTR HEAVY IND