Fluorine-lined breather valve

By designing a fluoropolymer-lined breathing valve with separate inhalation and exhalation valves, combined with a cyclone flow-blocking mechanism and optimized flow channel structure, the problems of high flow resistance and corrosive gas retention in breathing valves have been solved. This has achieved rational flow channel design and sensitive opening and closing, making it suitable for stable operation in highly corrosive media environments.

CN117006286BActive Publication Date: 2026-06-26ZHEJIANG YONGLIAN VALVE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG YONGLIAN VALVE
Filing Date
2023-08-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing breather valves suffer from high internal flow resistance and the tendency for corrosive gases to accumulate, making cleaning difficult.

Method used

Design a fluoropolymer-lined breathing valve with a fluoroplastic-lined fireproof valve body. Separate inhalation and exhalation valves are provided. Combined with a cyclone flow obstruction mechanism, the flow channel structure is optimized, including a buffered unidirectional flow structure and a guide sleeve to reduce flow resistance and prevent liquid accumulation in the cyclone.

Benefits of technology

It achieves rationalization of valve flow channels, reduces flow resistance, improves opening and closing sensitivity, is suitable for stable operation in highly corrosive media environments, and reduces maintenance costs.

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Abstract

The present application relates to a kind of fluorine-lined breathing valve, including the fire damper body with fluoroplastic lining, the fire damper body has access port, suction port, exhalation port, suction flow channel, exhalation flow channel and cleaning port;It also includes access flange, fire damper core, suction flange, suction valve flap guide sleeve, suction valve flap, insect screen, exhalation flange, exhalation valve flap, exhalation valve cover, exhalation valve flap guide sleeve, cyclone resistance mechanism and cleaning end cover;Cyclone resistance mechanism is the structure of buffering type one-way flow, relative fire damper body has the state of following and the state of reverse flow, in the state of following, cyclone resistance mechanism flow end and suction port form gas inlet area, cyclone resistance mechanism reverse flow end and exhalation flow channel form gas outlet area;In the state of reverse flow, cyclone resistance mechanism flow end and suction port form pressure maintaining area, cyclone resistance mechanism reverse flow end and exhalation flow channel form high pressure area.The present application has the advantages of smaller flow resistance and not easy to accumulate corrosive gas, and it is easy to clean.
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