Device for removing white smoke through refrigerating and heating method

Abstract

The invention discloses a device for removing white smoke through a refrigerating and heating method, and belongs to the technical field of chemical engineering and environment protection. The problems that an existing device is high in device occupied area and energy consumption are mainly solved. The device is mainly characterized in that the smoke humidity is reduced by means of a refrigerating and heating principle, devices for achieving gas functions mainly include a pipeline system, a compressing system, a cooling system, a heating system and a throttling system, the pipeline system comprises a smoke pipeline and chimney, a smoke buffering device and a liquid emptying valve, the gas outlet end of the smoke buffering device is connected with the smoke pipeline and chimney, the liquid emptying valve is arranged on the smoke buffering device, the compressing system is a compressor, the cooling system comprises a smoke refrigerating pipe arranged in the smoke buffering device and a valve at the inlet and outlet end of the smoke refrigerating pipe, the heating system comprises a smoke heating pipe arranged in the smoke pipeline and chimney and a valve at the inlet and outlet end of the smoke heating pipe, the throttling system is a capillary device, and the compressor, the smoke heating pipe, the capillary device and the smoke refrigerating pipe are sequentially connected through pipelines. The device has the advantages of being simple in structure, small in energy consumption and wide in application range and is mainly used for reducing smoke humidity and relative humidity in factory exhaust gas emission.

Description

Technical field [0001] The invention belongs to the technical field of chemical engineering and environmental protection. Specifically, it relates to a device for removing white smoke by cooling and heating. Background technique [0002] Many industrial production processes emit flue gas with high water vapor content. Water vapor itself is not a pollutant, but part of the water vapor combined with dust with a small particle size will easily form aerosols, which are saturated with water vapor in the flue gas. The formed white smoke will cause landscape pollution, make factory exhaust emissions fail the acceptance check, and endanger human health. In order to prevent landscape pollution, appropriate methods must be used to reduce the humidity and relative humidity of the flue gas. [0003] In the announcement number CN101279182, a method and device for eliminating white smoke in industrial flue gas are announced, which is characterized in that before the industrial flue gas is disc...

AI Technical Summary

Problems solved by technology

The patented process and equipment of this invention are relatively simple, but this method is greatly affected by the environment, region and the water content of the flue gas. When the air humidity is relatively high or the water content of the flue gas itself is relatively high, a large amount of air needs to be mixed. There will be unfavorable factors such as increasing the equipment footprint and increasing energy consumption.

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