Automatic flue gas on / off device

CN116556628BActive Publication Date: 2026-05-26BEIJING LEYE HYDRAULIC PNEUMATIC EQUIP TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING LEYE HYDRAULIC PNEUMATIC EQUIP TECH CO LTD
Filing Date
2022-08-16
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing technologies, the opening/closing of ultra-large flues requires the cooperation of manual labor and large hoisting equipment, which is labor-intensive, poses high safety hazards, and affects equipment utilization efficiency and enterprise economic benefits.

Method used

An automatic flue gas duct opening/closing device was designed, including a pair-type flange, a flange lifting/locking mechanism, a composite sealing plate, a composite sealing plate winding mechanism, and a traction mechanism. It realizes automatic control switching of the flue gas duct and uses a hydraulic cylinder and a chain traction mechanism to seal and open the flue gas duct.

Benefits of technology

Reliable sealing and opening of flues can be achieved without shutting down parallel units, avoiding safety hazards from manual operation, reducing labor intensity, and improving equipment efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116556628B_ABST
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Abstract

This invention provides an automatic flue gas duct on / off device, which enables remote automatic control of flue gas duct switching without shutting down parallel generating units. The device includes: a flange lifting / locking mechanism, a composite sealing plate, a composite sealing plate winding mechanism, and a traction mechanism; a pair of lower flange assemblies are connected to a compensator via a pair of upper flange assemblies; the flange lifting / locking mechanism is used to lift the pair of upper flange assemblies, creating an opening space between them and the pair of lower flange assemblies; or to pull down the flange of the compensator assembly, locking it to the pair of lower flange assemblies or the sealing plate; the composite sealing plate winding mechanism is used to release or retract the sealing plate; when the sealing plate winding mechanism releases the sealing plate, the sealing plate, under the traction of the traction mechanism, enters the opening space between the pair of upper and lower flange assemblies, thus sealing the flue gas duct.
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