High-pressure valve service life testing device

A technology of life test device and high-pressure valve, which is applied in the direction of mechanical valve test, etc., can solve the problems of lack of prevention of high-pressure valve life test method and evaluation standard, blank test device, etc., and achieve the effect of unmanned and long-term stable operation

Pending Publication Date: 2020-06-12
SHANGHAI MARINE EQUIP RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-pressure valve life test device to solve the current problems of blank test devices, high-pressure valve life test methods and evaluation standards, etc.

Method used

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  • High-pressure valve service life testing device
  • High-pressure valve service life testing device

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Embodiment Construction

[0019] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, a high-pressure valve life test device provided by the present invention includes a tested valve 1, a high-pressure simulation container 2, a valve internal pressure output system, a valve external pressure output system, a signal acquisition, storage and control system 3, and a gas-liquid pipe Road and other components. The tested valve 1 is an electric drive valve, which can realize automatic opening and closing; the valve 1a of the electric drive valve is placed in a high-pressure analog container 2, and a torque sensor 1c is installed between the valve 1a of the electric drive valve and the electric drive head 1b, and the It is used to measure the opening and closing torque of the valve; a strain gauge 1d is installed on the key position of the valve body of the valve 1a to measure the deformation of the valve s...

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Abstract

The invention relates to a high-pressure valve service life test device. An electrically-driven valve to be tested is placed in a high-pressure simulation container, a torque sensor is installed between the valve to be tested and an electric drive head, a strain gauge is installed on a valve body, and the valve to be tested is connected with a valve internal pressure output system and used for simulating internal pressure loads borne by the inner wall of the valve body in the opening and closing process of the valve to be tested. The high-pressure simulation container is connected with a valveexternal pressure output system and used for simulating an external pressure load borne by the outer wall of the tested valve under the deep sea high-pressure environment condition; a collection, storage and control system is connected with a torque sensor, the strain gauge, an electrically-driven tested valve, a valve internal pressure output system and a pressure transmitter so as to be used for respectively controlling the automatic opening and closing of the electrically-driven tested valve, applying an internal pressure load, an external pressure load and internal and external simultaneous pressure loads to the electrically-driven tested valve, and realizing the fatigue life test of the electrically-driven tested valve under the action of the dynamic pressure load.

Description

technical field [0001] The invention relates to a deep-sea high-pressure valve test device, in particular to a high-pressure valve life test device. Background technique [0002] At present, a lot of research has been carried out at home and abroad on conventional valve life test technology, and various life test devices or platforms have been designed, forming a complete set of test methods for evaluating valve life indicators. In particular, my country has formulated the corresponding test standard CB / T 3397 93 "Static Pressure Life Test of Marine Valves" in terms of life test of marine valves under static pressure environment. However, the research on the life test technology of high pressure valves is still insufficient, especially the research on the life test technology of high pressure valves under the combined effects of high water pressure, water pressure pulsation and valve cavitation is basically blank. So far, there has not been an effective test method for eval...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/003
CPCG01M13/003
Inventor 冯飞李子杰宋雍陈荣
Owner SHANGHAI MARINE EQUIP RES INST
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