A sampling device for the production of canned gas

By designing a sampling device driven by a three-way valve and a hydraulic rod, the problems of gas sample contamination and compositional changes in the existing technology have been solved, and the purity and detection accuracy of gas sampling have been achieved.

CN224552830UActive Publication Date: 2026-07-24CHONGQING KAIYI SPECIAL GAS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING KAIYI SPECIAL GAS CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing canned gas sampling devices rely on manual operation after sampling, which makes gas samples susceptible to contamination or changes in composition, affecting the accuracy of detection.

Method used

A sampling device comprising a three-way valve, a hydraulic rod, and a sealing structure was designed. The hydraulic rod drives the stop block and linkage to ensure that the sampling port opens only when needed, preventing gas leakage and the mixing of outside air. The U-shaped air inlet and sealing design ensure gas purity and detection accuracy.

Benefits of technology

It effectively reduces gas leakage and the mixing of outside air, improving the purity of the sampled gas and the accuracy of the test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of sampling devices for canned gas production, belong to gas sampling technical field, the sampling device for canned gas production, including three-way valve, the upper surface of three-way valve is fixedly connected with connecting block, the first hydraulic rod is installed on the connecting block upper end, the switch door is rotatably connected in the installation box front end, sampling assembly is installed on the installation box, and the sampling assembly can sample gas in three-way valve, the utility model is set by setting sampling assembly, by sealing structure and linkage design, avoid air mixing or sample leakage, ensure that the gas collected comes from target tank completely, simultaneously, also improve the accuracy and reliability of detection result, by setting first hydraulic rod, block and sampling port, when block is driven to descend by first hydraulic rod, by extruding linkage member to drive sealing element to descend, the passage between sampling port and sampling tank is opened, reduce gas leakage risk in non-sampling stage.
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