Electrolytic bath sealing structure and PEM electrolytic bath

By arranging a limiting rib structure in the sealing groove of the PEM electrolytic cell, the problem of the sealing ring sliding or slipping under high back pressure is solved, and the sealing performance and stability of the electrolytic cell are significantly improved.

CN119332267APending Publication Date: 2025-01-21FOSHAN XIANHU LAB
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Patent Information

Application Number
CN202411624326.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-01-21

AI Technical Summary

Technical Problem

In the prior art, the sealing ring of the PEM electrolytic cell is easily slipped or slipped under high back pressure conditions, resulting in a decrease in the sealing performance of the electrolytic cell and affecting stability and efficiency.

Method used

Design a sealing structure for an electrolytic cell. By setting a first limiting rib at the bottom of the sealing tank, the sealing ring contacts the limiting rib when clamped, and further contacts the pole frame through the second limiting rib to ensure sealing. Lateral fixation of the circle.

Benefits of technology

It effectively prevents the sealing ring from breaking away from the sealing groove under high pressure, significantly improves the sealing performance of the PEM electrolytic cell, and ensures long-term stable operation of the electrolytic cell.

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Abstract

The electrolytic bath sealing structure comprises a bipolar plate, a membrane electrode and a sealing ring, the bipolar plate is provided with a sealing groove, and a first limiting rib is arranged at the groove bottom of the sealing groove in a protruding mode; the sealing ring is arranged between the membrane electrode and the bipolar plate, is positioned in the sealing groove and is propped against the first limiting rib. The first limiting rib is arranged at the bottom of the sealing groove, when the sealing ring is clamped between the membrane electrode and the bipolar plate, the sealing ring abuts against the interior of the sealing groove, meanwhile, the sealing ring further abuts against the first limiting rib, and the first limiting rib further limits the lateral direction of the sealing ring, so that the stability of lateral fixing of the sealing ring is improved; the sealing ring is effectively prevented from being separated from the sealing groove under high pressure, the sealing performance of the PEM electrolytic cell in the operation process is remarkably improved, and long-term stable work of the electrolytic cell is ensured.
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Citation Information

Cited By

  • High-pressure-resistant sealing assembly and electrolytic bath device

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