Corrosion-resistant enamel pipe type smoke condensing and heat exchanging device

Abstract

The invention discloses a corrosion-resistant enamel pipe type smoke condensing and heat exchanging device which is mounted at a smoke exhausting port of a desulfurizing tower. The device comprises asupporting seat, a heat exchanging device support, enamel pipes and collecting boxes, wherein the heat exchanging device support comprises a plurality of supporting frame sets which are overlapped from top to bottom; each supporting frame set comprises a plurality of supporting frames which are arranged at equal intervals and in parallel, and the supporting frames at the bottommost layer is fixedto the supporting seat; a plurality of enamel pipes are mounted at equal intervals and in parallel on the supporting frames to form an enamel pipe set; a clearance between any two adjacent enamel pipes form a smoke channel; the collecting boxes are mounted at two ends of the supporting frames; ports in two ends of the enamel pipes correspondingly extend into the collecting boxes and are in drawing-pulling connection with the collecting boxes; and the collecting boxes on the supporting frame set at any layer sequentially intercommunicate through a pipe body. According to the device, the enamelpipes are used as heat exchanging assemblies; and the device has the characteristics of being high in corrosion resistance, and high in heat exchanging efficiency.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a flue gas condensation heat exchanger with corrosion-resistant enamel tubes. Background technique [0002] In recent years, with the development of the economy, environmental problems have become more and more prominent. In order to deal with the increasingly serious problem of air pollution, the country has introduced stricter air pollutant emission standards. To remove SO contained in fossil fuel flue gas 2 At present, the limestone-gypsum desulfurization technology is mainly used in China. The temperature of the flue gas treated by this desulfurization method is relatively low, generally around 50°C. The water vapor in the flue gas is basically in a saturated state, and the flue gas contains some harmful substances. Fine particles and soluble salts are the precursors for the formation of PM2.5 aerosols. At the same time, after the low-temperature wet flue gas is disc...

AI Technical Summary

Problems solved by technology

To remove SO contained in fossil fuel flue gas 2 At present, the limestone-gypsum desulfurization technology is mainly used in China. The temperature of the flue gas treated by this desulfurization method is relatively low, generally around 50°C. The water vapor in the flue gas is basically in a saturated state, and the flue gas contains some harmful substances. Fine particles and soluble salts are the precursors for the formation of PM2.5 aerosols. At the same time, after the low-temperature wet flue gas is discharged from the chimney, the water vapor will condense into mist droplets, thus forming a long white plume at the chimney outlet. cause large visual pollution

In order to eliminate the white smoke plume after desulfurization, and reduce harmful fine particles and soluble salts to be placed in the atmosphere, various localities in China have introduced relevant environmental protection measures and technical solutions, requiring the flue gas after desulfurization to be cooled and condensed first. Emission, the main purpose is to reduce the water vapor content in the flue gas, so as to achieve the purpose of eliminating the white smoke plume, but the condensed water will cause great corrosion to the condensing equipment

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