Vacuum detection device for hydrogen leakage detection

By designing a vacuum detection device, a vacuum chamber and semiconductor sensor are used to detect hydrogen leaks, overcoming the shortcomings of existing detection methods in terms of sensitivity and environmental adaptability, and achieving efficient and accurate hydrogen leak detection.

CN224286273UActive Publication Date: 2026-05-26JIANGSU SHENCHEN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU SHENCHEN TECH CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing hydrogen leak detection methods are insufficient in key performance indicators such as sensitivity, response time, and environmental adaptability, making it difficult to meet the growing demand for hydrogen safety applications.

Method used

A vacuum detection device is used. After evacuating the vacuum chamber, the hydrogen content is detected by a semiconductor sensor. Combined with the input of hydrogen from a high-pressure hydrogen cylinder and monitoring of pressure changes, the device can determine whether the hydrogen equipment is leaking. The device is also designed to be easy to maintain and install.

Benefits of technology

It achieves high sensitivity and high accuracy in hydrogen leak detection under any environment, and the device has high structural stability and strong adaptability, enabling it to work effectively under different environmental conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vacuum detection device for hydrogen leakage detection, particularly relates to the technical field of hydrogen leakage detection, and comprises a vacuum box body, one side of an inner cavity of the vacuum box body is provided with a vacuum cavity, and the other side of the inner cavity of the vacuum box body is provided with an equipment cavity. According to the utility model, firstly, hydrogen equipment to be detected or a sample piece to be detected is placed in the vacuum cavity, the vacuum pump is started to vacuumize the interior of the vacuum cavity, and whether the interior of the vacuum cavity leaks gas or not is judged by observing whether a detection value of the pressure sensor changes or not after vacuumizing is finished; then hydrogen in the high-pressure hydrogen cylinder is controlled to be input into hydrogen equipment to be detected or a sample piece to be detected, vacuumizing is conducted after a certain time, the hydrogen content is detected through the semiconductor sensor, whether leakage exists or not can be judged, and detection in the mode is not affected by the external environment; the method can be used for testing in any environment, and the detection sensitivity and accuracy can be improved.
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