High-temperature flue gas waste heat utilization device

Abstract

The invention belongs to the technical field of environmental protection, particularly relates to a high-temperature flue gas waste heat utilization device. Aiming at solving the problems that a traditional high-temperature flue gas heat recovery device is generally simple in structure, flue gas is directly introduced into the device for heat exchange, the wall surface of a heat exchange componentis prone to be attached with dust, and then the heat recovery effect is affected, the following scheme is provided. According to the scheme, the novel device comprises a heat exchange tank, a water outlet is formed in the bottom end of the heat exchange tank, and a water outlet hopper is welded to the inner wall of the water outlet. According to the novel device, by arranging an automatic drainage mechanism, when the temperature of water in the heat exchange tank continuously rises, and the internal pressure rises to a certain value, a sealing top plate is pressed to be separated from a fixing ring, so that the water flows out; and in the process of losing magnetic adsorption of magnetic blocks, the water flows out and impacts, along with the water outlet hopper, a flow dividing blockingpiece and a supporting plate with a semispherical plate, so that continuous pulling force is generated on the sealing top plate, and then it is guaranteed that the sealing top plate is far away from the fixing ring, and the automatic drainage is smoothly carried out.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a device for utilizing waste heat of high-temperature flue gas. Background technique [0002] Air pollution is also called air pollution. According to the definition of the International Organization for Standardization, air pollution usually refers to: due to human activities or natural processes, some substances enter the atmosphere, present a sufficient concentration, reach a sufficient time, and thus endanger the environment. A phenomenon of human comfort, health, and welfare or the environment. Smoke is a mixture of gas and smoke and is the main cause of air pollution in residential areas. The composition of the flue gas is very complex. The gas includes water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, and nitrogen oxides. The smoke includes fuel ash, coal particles, oil droplets, and pyrolysis products. Therefo...

AI Technical Summary

Problems solved by technology

Some high-temperature flue gas is directly discharged into the outside world, which not only causes air particle pollution and heat pollution, but also causes waste of heat

[0003] Therefore, in the face of high-temperature flue gas treatment, it is necessary to perform heat recovery treatment. The traditional high-temperature flue gas heat recovery device generally has a relatively simple structure. The flue gas is generally directly passed into the interior of the device for heat exchange, and the heat exchange components avoid easy attachment. Dust will reduce the heat exchange efficiency between the heat exchange components and the heat exchange medium, thereby affecting the heat recovery effect, so there are certain limitations

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