All-round collecting and discharging system for smoke liquid-state media

Abstract

The invention relates to a flue gas liquid medium collection and discharge system, including: an active collection device, a passive collection device and a discharge device, wherein the active collection device collects the flue gas liquid medium near the inner wall of the chimney and the condensed acid attached to the inner wall of the chimney, and the passive mobile device collects The condensed acid collected at the corbel and the condensed acid flowing down the inner wall of the chimney are finally discharged to the acid collection pool at the bottom of the chimney through the glass fiber reinforced plastic acid discharge pipe of the discharge device or diverted to a designated discharge location outside the chimney. This device realizes "regional treatment and centralized discharge", and completely solves the problems of corrosion of the internal structure and lining of the chimney and leakage of the chimney caused by the large accumulation of condensed acid in the chimney anti-corrosion treatment, especially in the field of condensed acid collection and discharge. , and alleviate the chimney rain problem.

Description

technical field [0001] The invention belongs to the field of collection and discharge of flue gas liquid medium in a chimney, and in particular relates to a novel all-purpose collection and discharge system of flue gas liquid medium. Background technique [0002] Power plant chimneys have long been designed as buildings, with emphasis on structure and insulation. Before desulfurization, the flue gas temperature of the chimney is above 120 degrees Celsius. The sulfur dioxide, sulfur trioxide, hydrogen fluoride, hydrogen chloride and other acidic corrosive gases in the flue gas will basically not condense into acid to corrode the chimney. The actual life of the chimney is much longer than 30 years. . After the flue gas is desulfurized, the exhaust gas temperature drops below the acid dew point, and the horizontal flue and chimney will generate condensate at any time, and the anti-corrosion metal materials and acid-resistant brick linings will be continuously corroded. In the...

AI Technical Summary

Problems solved by technology

[0004] The flue gas liquid medium collection and discharge system in the prior art mainly passively collects the condensed acid liquid collected at the corbel and the condensed acid liquid flowing down the inner wall of the chimney, but it cannot complete the collection and discharge of the flue gas liquid medium near the inner wall of the chimney and the inner wall of the chimney. Active collection of attached condensed acid, resulting in the latter still corroding the inner wall of the chimney

Some acid discharge devices in the prior art can only collect the acid liquid on the inner wall of the cow leg, or can only collect the acid liquid in the flue gas that will be discharged from the top of the chimney

[0005] Chinese patent application No. 201310363807.7 discloses a condensate collection device outside the inner wall of the wet chimney, which is used to collect the acid liquid in the flue gas discharged from the top of the chimney, but the amount of collection is very small, and it does not solve the problem of the inner wall of the chimney. Corrosion and leakage of corbels

[0006] Chinese patent application No. 201320527359.5 discloses a chimney inner cylinder condensate collection and discharge system and a chimney, which can only passively collect the acid on the inner wall of the chimney, but cannot collect the acid in the flue gas in the chimney

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