Gas purification system

By employing synchronous control of multiple process valves and drive components in the pressure swing adsorption hydrogen purification system, the problem of a large number of valves and complex structures is solved, achieving simplified control and miniaturization of the system, which facilitates deployment and application in space-constrained scenarios.

CN122447643APending Publication Date: 2026-07-24STATE POWER INVESTMENT CORPORATION RESEARCH INSTITUTE +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE POWER INVESTMENT CORPORATION RESEARCH INSTITUTE
Filing Date
2025-01-23
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing pressure swing adsorption (PSA) hydrogen purification systems have a large number of valves with complex structures, resulting in high requirements for system control precision, which increases manufacturing costs and maintenance difficulty.

Method used

The system employs multiple process valves, each consisting of multiple valve cores and flow channels. The synchronous rotation of these multiple valve cores is achieved through a drive assembly, simplifying the control logic and integrating a compact structure, thereby reducing the number and complexity of valves.

Benefits of technology

The system simplifies the control logic and operation process of the gas purification system, improves the system's integration and miniaturization capabilities, reduces manufacturing and maintenance costs, and enhances the system's flexibility and adaptability.

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Abstract

The application provides a gas purification system, comprising a plurality of adsorption towers, a valve assembly and a driving assembly; the valve assembly comprises a plurality of process valves, each of the process valves comprises a plurality of valve cores and a plurality of groups of flow-through pipes corresponding to the valve cores, each group of flow-through pipes comprises two flow-through pipes, the two flow-through pipes are respectively used for being connected with a raw material gas pipe, or a product gas pipe, or a desorption gas pipe, or a top or bottom of the adsorption tower, and the valve core is used for controlling opening and closing between the two flow-through pipes of the corresponding group of flow-through pipes; the driving assembly is connected with the plurality of process valves, so as to drive the plurality of valve cores in the process valves to rotate synchronously, and to control opening and closing between different valve cores and the corresponding two flow-through pipes. The application solves the problem that the number of valves in the pressure swing adsorption hydrogen purification system in the prior art is large, the structure is complex, and the system control precision requirement is high.
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