A new energy special filtering type corrugated pipe stop valve

By introducing a filter screen and bellows assembly into the gate valve, combined with sealing packing and guide protrusion structure, the problems of poor sealing effect and leakage are solved, resulting in better sealing performance and longer seal ring life.

CN116877705BActive Publication Date: 2026-05-29ZHEJIANG NEWTON FLUID CONTROL
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG NEWTON FLUID CONTROL
Filing Date
2023-07-06
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing gate valves suffer from poor sealing performance, easy leakage between the valve stem and valve cover, and uneven stress on the sealing seat and valve core leading to aging of the sealing ring.

Method used

A special-purpose filter-type bellows gate valve for new energy is designed. By setting up a filter screen and bellows assembly, solid particles in the filter medium are filtered out. Combined with sealing packing and abutment sealing ring, a double seal is achieved to improve the sealing effect. Furthermore, the force on the ball valve core is evenly distributed through the cooperation of the guide protrusion and the return spring.

Benefits of technology

It improves the sealing effect between the ball valve core and the valve seat, reduces media leakage, extends the service life of the sealing ring, and enhances the sealing performance between the valve stem and the valve cover.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116877705B_ABST
    Figure CN116877705B_ABST
Patent Text Reader

Abstract

The application discloses a new energy special filtering type corrugated pipe stop valve, and aims to solve the problem of poor sealing effect between a valve core and a valve seat in the prior art. The application solves the above technical problem through the following technical scheme: comprising a valve body and a valve cover, the valve body and the valve cover cooperate to form a cavity, the two sides of the valve body are respectively provided with a water inlet channel and a water outlet channel which are communicated with the cavity, the water inlet channel is connected with an inclined blowdown channel, and the blowdown channel is communicated with the cavity through a vertical channel; a valve rod assembly comprising a valve rod, the valve rod is arranged in the valve cover, and the bottom of the valve rod is provided with a ball head valve core; a filter assembly comprising a filter screen arranged in the blowdown channel. Through the arrangement of the filter screen, the medium can be filtered, the solid particles are reduced to adhere to the sealing abutting ring, the sealing performance between the ball head valve core and the sealing abutting ring is improved, and the sealing effect between the ball head valve core and the valve seat is improved.
Need to check novelty before this filing date? Find Prior Art