Environment-friendly and energy-saving smoke exchange method for power generation

Abstract

The invention discloses an environment-friendly and energy-saving smoke exchange method for power generation. The environment-friendly and energy-saving smoke exchange method comprises the steps of connecting an infusion tube into a through hole in the middle of a heat conduction tube in a clamped mode and enabling the outer wall of the infusion tube to be attached to the inner wall of the through hole in the middle of the heat conduction tube; installing sealing rings inside a first groove and a second groove, locating the planar end faces of the sealing rings on the sides, provided with threaded holes, of a middle plate and side plates, installing fastening bolts, enabling the tail ends of the fastening bolts to be attached to the end faces of the planar sides of the sealing rings, screwing the fastening bolts, and enabling the arc-surface sides of the sealing rings to be attached to wedge-shaped surfaces of sealing grooves through the fastening bolts. According to the method, a shell structure is made of ceramic, so that the corrosion resistance is good; an elastic middle supporting structure is adopted, and therefore the phenomenon that the heat conduction tube is expanded and exploded due to smoke heat transfer hardly occurs; an input tube made of ceramic is arranged, and therefore the problem that existing tubes are easily corroded can be avoided.

Description

technical field [0001] The invention relates to an environmentally friendly and energy-saving flue gas exchange method for power generation, belonging to the field of energy conservation and environmental protection. Background technique [0002] The heat exchanger can exchange the heat in the high-temperature flue gas produced by iron and steel smelting with the low-temperature liquid, so that the low-temperature liquid can be heated up for waste heat power generation. When the existing heat exchanger structure is used for the heat exchange of flue gas produced in iron and steel smelting, it is easy to be damaged due to the presence of corrosive substances in the flue gas of iron and steel smelting, which affects the service life, and, during use, the seal is used to seal The structure is easy to age, and at the same time, due to the high rigidity of the structure, it is easy to expand when transporting smoke, and there is a safety hazard of explosion. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an environmentally friendly and energy-saving flue gas exchange method for power generation and its installation method, which can improve the problems existing in the prior art. By using ceramics to make the shell structure, it can achieve good corrosion resistance. At the same time, due to the use of an elastic middle support structure, the heat conduction tube is not easy to expand and explode due to the heat transfer of the flue gas. By setting the input tube structure made of ceramics, the problem that the existing tube body is easy to corrode can be avoided.