Drainage and exhaust pipeline of thermal power boiler

By introducing filtering components and heat recovery components into the exhaust pipe of thermal power boilers, the problems of heat waste and impurity intrusion are solved, heat recovery and stop valve protection are achieved, and the operating efficiency and life of the equipment are improved.

CN223412034UActive Publication Date: 2025-10-03HUADIAN QUDONG POWER GENERATION CO LTD
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Patent Information

Application Number
CN202422960085.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-10-03
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

The exhaust pipe of the existing boiler is directly discharged into the air, resulting in heat energy waste, and the lack of a filtering device causes impurities to enter the stop valve, causing damage and shortening its service life.

Method used

A thermal power boiler drainage and exhaust pipe was designed, which includes a filter component and a heat recovery component. Impurities are filtered through the filter, heat is recovered by the heat absorber, and hot water is circulated through the pump and water tank. The hot water is introduced into the exhaust pipe through the smoke collection hood to achieve heat recovery and impurity filtration.

Benefits of technology

It effectively utilizes the heat energy in the exhaust gas, prolongs the service life of the stop valve, reduces the entry of impurities, and improves the operating efficiency and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a thermal power boiler drainage and exhaust pipeline, and relates to the technical field of boiler drainage and exhaust pipelines. The device comprises a drainage pipe, a filtering assembly is connected to the drainage pipe, an exhaust pipe is connected to the outer side surface of the drainage pipe, an exhaust valve is connected to the exhaust pipe, a heat energy recovery assembly is connected to the exhaust valve, and the heat energy recovery assembly comprises an exhaust fume collecting hood. Hot air is exhausted through the exhaust valve, the exhausted hot air can be exhausted through the smoke exhaust pipe, heat energy in the exhausted hot air can be absorbed by the heat absorption piece, water in the water tank can be guided into the connecting pipe by starting the pump, the heat energy in the water tank can be absorbed by the heat absorption piece, the heat energy in the water tank can be absorbed by the heat absorption piece, the heat energy in the water tank can be absorbed by the heat absorption piece, and the heat energy in the water tank can be absorbed by the heat absorption piece. Water can enter the annular calandria through the connecting pipe, heat on the heat absorption pieces is absorbed by the water in the annular calandria, the water absorbing heat energy can return to the water tank through the backflow pipe, and hot water can be guided out through the guide pipe.
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