High-pressure valve service life testing device

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...

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.

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