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.
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
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.
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.
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.
Smart Images

Figure CN224315614U_ABST