Air mixing device and chimney system comprising air mixing device

Abstract

The invention discloses an air mixing device which comprises a small-ring flange, a large-ring flange and an inner barrel, and the lower caliber of the inner barrel is smaller than the inner diameterof the small-ring flange, and the upper caliber of the inner barrel is smaller than the inner diameter of the large-ring flange; and a plurality of blades are arranged around the outer side of the inner barrel, and connected with the small-ring flange and the large-ring flange. In the rising process of smoke, high-speed airflow is gradually expanded and reduced on the inner side and the outer sideof the inner barrel, negative pressure is locally formed, and external cold air can be drawn in. High-temperature and high-humidity flue gas discharged from the chimney is cooled to form white fog, and the white fog enters a white smoke eliminating device, and then is captured and eliminated by the white smoke eliminating device. In such mode that central and peripheral smoke is entrained in a staggered mode, the structure is simple, and the cost is low; the overall entrainment effect can be remarkably improved, and a foundation is laid for obtaining a good effect of chimney white smoke elimination in the next step. The invention further provides a chimney system which has the corresponding advantages.

Description

Technical field [0001] The present invention relates to the field of flue gas emissions, and more particularly to a mixing air device and a chimney system including the mixing device. Background technique [0002] In the thermal power industry and other industries, the overall level of water utilization efficiency is still low, with considerable savings. Actively take effective measures to improve the comprehensive utilization of water, saving water, becoming a necessary condition for industrial society sustainable development and improving market competitiveness, and is also related to sustainable development of the entire economic society. [0003] At present, the chimney of many industries often discharges "white smoke", "white smoke" is actually water, "white smoke" emission is actually the waste of water resources. [0004] In addition to resource waste, "white smoke" also affects the visibility of surrounding residential areas and traffic roads, destroying the environment o...

AI Technical Summary

Problems solved by technology

[0004] In addition to the waste of resources, "white smoke" also affects the visibility of surrounding residential areas and traffic roads, and damages the urban environment; in addition, it may also cause the humidity in the downwind area to rise, and the plume fog falls on the ground, causing the road surface around the cooling tower to become wet. Slippery or icy, which brings a great safety hazard to the surrounding traffic, affects the safe production of the factory, and affects the safe operation of the production equipment around the cooling tower

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