A pneumatic gas butterfly valve radial seal test system and test method

By using a gas generator and a butterfly valve control system, the problems of low gas utilization and high cost in existing technologies have been solved, enabling sealing tests under various conditions and ensuring the accuracy and efficiency of test results.

CN118090081BActive Publication Date: 2026-06-23JIANGSU UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU UNIV OF SCI & TECH
Filing Date
2024-03-12
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In the existing technology, directly using an engine as a gas generating device for high-temperature sealing tests results in low gas utilization and high cost. Furthermore, sealing tests require testing multiple sets of data under various temperature and pressure conditions, while engines are usually set to a fixed working cycle, which cannot meet the actual test requirements.

Method used

The engine was replaced by a gas generator. The working environment of the pneumatic butterfly valve was simulated by the control of the gas heating device and the butterfly valve. High-precision pressure and temperature sensors were used for real-time monitoring. Combined with the variable volume auxiliary gas chamber pressure regulation and flow control solenoid valve, the gas recycling and quantitative control were realized to ensure the accuracy of the test results.

Benefits of technology

It reduced testing costs, improved gas utilization, ensured the accuracy of test results and the efficiency of multiple tests, and saved testing time.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN118090081B_ABST
    Figure CN118090081B_ABST
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Abstract

The application provides a kind of pneumatic gas butterfly valve radial seal test system and test method, including gas generating device, switch valve, gas heating device, first test butterfly valve and waste gas treatment device;The first test butterfly valve is connected with main gas pipeline, and the opening and closing or opening size of main gas pipeline is controlled by the butterfly plate rotatable along the valve shaft, the butterfly plate is three eccentric structure, further including the flange fixedly connected with valve body by being buckled on the outside of butterfly plate, and the gap between the flange and butterfly plate is provided with valve seat.Affirmative effect: the test system generates gas by gas generating device, secondary heating and pressure regulating method to meet the strict test requirements.Test gas can be recycled multiple times by gas heating device and cooling device for multiple variable tests, reducing test cost and improving gas utilization rate.
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