Labyrinth valve cage structure of high-pressure stop valve based on pressure gradient self-cleaning

By designing a labyrinthine valve cage structure for a high-pressure shut-off valve based on pressure gradient self-cleaning, impurities are automatically removed using the fluid pressure gradient, solving the problems of easy clogging and limited flow regulation in traditional valve cages, and achieving the effects of automatic cleaning and flow control.

CN224315614UActive Publication Date: 2026-06-02GUONENG NINGXIA YUANYANG LAKE SECOND POWER GENERATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUONENG NINGXIA YUANYANG LAKE SECOND POWER GENERATION CO LTD
Filing Date
2025-07-02
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional high-pressure shut-off valves with labyrinth cages are prone to clogging, have high maintenance costs, and limited flow regulation, making them unable to meet high flow rate requirements.

Method used

A labyrinthine valve cage structure for a high-pressure shut-off valve based on pressure gradient self-cleaning is designed. It utilizes fluid pressure gradient to automatically remove impurities and achieves automatic impurity cleaning and flow control through a large-size drain port and a stepped multi-stage flow channel.

Benefits of technology

It achieves automatic removal of impurities without manual disassembly and cleaning, maintaining the valve's flow capacity and meeting flow requirements under different operating conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of high-pressure stop valve labyrinth valve cage structures based on pressure gradient self-cleaning, it is related to high-pressure fluid control equipment technical field, the high-pressure stop valve labyrinth valve cage structure based on pressure gradient self-cleaning, including valve seat, the top end of the valve seat is fixedly connected with throttling section, the outer wall of the throttling section is equipped with a plurality of throttling ports, and the top end of the throttling section is equipped with connecting port, the inner wall of the connecting port is fixedly connected with self-cleaning blowdown pipe, the top end of the self-cleaning blowdown pipe is fixedly connected with top end connecting seat, the top end of the top end connecting seat is penetrated with valve core, and the top end of the top end connecting seat is equipped with top end limiting slot.The high-pressure stop valve labyrinth valve cage structure based on pressure gradient self-cleaning of the utility model, it has without external intervention, utilize fluid self pressure gradient to realize impurity dynamic cleaning, top big window keeps throttling function under high pressure difference, provide additional flow capacity under emergency condition.
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