Boiler afterheat recovery system with vertical low-resistance cooling system

Abstract

The invention discloses a boiler afterheat recovery system with a vertical low-resistance cooling system. The boiler afterheat recovery system comprises a boiler, afterheat recovery equipment, a smoke treatment device and a steam tank; the afterheat recovery equipment includes a heat exchange module, a first heat exchange pipe, a second heat exchange pipe and a heat exchange water tank; a first circulating pump is arranged between the heat exchange module and the first heat exchange pipe; the heat exchange module, the first heat exchange pipe and the first circulating pump form a refrigerant circulating loop; a first induced draft fan is arranged between a cyclone dust remover and the second heat exchange pipe; an intake pipe of the cyclone dust remover is communicated with a smoke outlet of the boiler; an exhaust pipe of the cyclone dust remover is communicated with an intake port of the second heat exchange pipe through the first induced draft fan; an exhaust port of the second heat exchange pipe is connected with the smoke treatment device by a second induced draft fan; multiple layers and multiple rows of high-density linear bent heat exchange pieces are arranged on the surface of the middle part of the second heat exchange pipe; the smoke treatment device comprises a filter chamber; a spraying device is arranged on the middle inner wall; and a settling pool is arranged at the lower end. The boiler afterheat recovery system is better in heat exchange effect, higher in afterheat recovery rate and more environment-friendly.

Description

technical field [0001] The invention relates to the technical field of heat supply and environmental protection, in particular to a boiler waste heat recovery system with a vertical low-resistance cooling system. Background technique [0002] During the operation of industrial boilers, there are problems such as high exhaust gas temperature, insufficient combustion, and low boiler thermal efficiency. The total amount of energy in the exhaust heat loss is huge. Making full use of this part of energy to heat the air and water, increasing the air temperature and feed water temperature can improve the fuel utilization rate to a certain extent. The recovery efficiency of the existing waste heat recovery and utilization equipment still has the problem of low application efficiency, and the problem of difficult cleaning of dust accumulation. Contents of the invention [0003] In order to solve the above problems, the present invention provides a boiler waste heat recovery system...

AI Technical Summary

Problems solved by technology

The recovery efficiency of the existing waste heat recovery and utilization equipment still has the problem of low application efficiency, and there is a problem that the dust accumulation is difficult to clean up

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