A comprehensive reliability test device for nuclear-grade valves

By designing a comprehensive reliability testing device for nuclear-grade valves, rapid hot and cold switching and convenient replacement of test pieces were achieved, solving the problems of low hot and cold switching rate and difficulty in replacing test pieces in existing technologies, thereby improving testing efficiency and reducing costs.

CN115839840BActive Publication Date: 2026-01-27NUCLEAR POWER INSTITUTE OF CHINA
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Patent Information

Application Number
CN202211618113.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-15
Publication Date
2026-01-27
Estimated Expiration
2042-12-15

AI Technical Summary

Technical Problem

Existing nuclear-grade valve testing equipment has a low rate of hot-cold switching under complex operating conditions, long testing cycles, and difficulty in replacing test pieces, making it difficult to meet the requirements of new reactor types.

Method used

Design a comprehensive reliability test device for nuclear-grade valves, including a main circuit, a test system, and an intermediate test intervention system, which are set in parallel. The system can operate independently or in combination by controlling the valves. Combined with a swing stress loading device, a vibration stress and environmental temperature and humidity loading device, it can achieve rapid switching and component replacement.

Benefits of technology

It enables rapid switching between hot and cold modes and convenient replacement of test specimens, improving testing efficiency and reducing construction and testing costs.

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Abstract

The application discloses a kind of nuclear grade valve reliability comprehensive test device, including main loop, test system and test intermediate intervention system, the main loop and the test intermediate intervention system are connected in parallel, and the output of the main loop and the output of the test intermediate intervention system are communicated with the input of the test system, the output of the test system is communicated with the input of the main loop and the input of the test intermediate intervention system;The test system includes the swing stress loading device, vibration stress and environmental temperature and humidity loading device connected in parallel;The application is by being provided with two test circuits of main loop and test intermediate intervention system, and make main loop system and test intermediate intervention system with test system as center, realize parallel connection, by controlling valve opening and closing, realize two system separate work or simultaneous work ability.
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Citation Information

Patent Citations

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