Waste heat recovery overall device for external exhaust of glass annealing furnace

Abstract

A waste heat recovery overall device for external exhaust of a glass annealing furnace comprises an inlet flue branch pipe, an inlet flue main pipe, a damper regulating valve, a waste heat recovery overall device body, an outlet flue, an induced draft fan, a chimney and the like, wherein the waste heat recovery overall device body comprises a steam superheater, an evaporator, and an economizer. Atpresent, the cooling air of the glass annealing kiln is discharged to the outside due to the small air volume and dispersed air volume, and consequently energy waste is caused; and the waste heat recovery overall device for external exhaust of the glass annealing furnace is used for collecting the external exhaust heat recovery, and utilizes the heat source to the maximum extent to generate superheated steam.

Description

technical field [0001] The invention relates to an integral device for recovering waste heat from exhaust air outside a glass annealing kiln. Background technique [0002] At present, in the glass production process, most of the exhaust air outside the glass annealing kiln is directly discharged into the atmosphere, and a small number of glass annealing kilns have a small amount of inefficient recycling of waste heat on the premise of opening the exhaust outlet to discharge the cooling air, and a large amount of heat energy wasted. The main reason why it is difficult to efficiently recover and utilize the waste heat of the external exhaust air is that the temperature and air pressure in the glass annealing kiln are strictly controlled, and the stability of the temperature and air pressure is very high. A slight fluctuation will seriously affect the quality of glass production, resulting in defective Second, the exhaust air volume outside the glass annealing kiln is small, a...

AI Technical Summary

Problems solved by technology

[0002] At present, in the glass production process, most of the exhaust air outside the glass annealing kiln is directly discharged into the atmosphere. A small number of glass annealing kilns have a small amount of inefficient recycling of waste heat on the premise of opening the exhaust outlet to discharge the cooling air, and a large amount of heat energy. be wasted

The main reason why it is difficult to efficiently recycle the waste heat of the external exhaust air is that the temperature and air pressure in the glass annealing kiln are strictly controlled, and the stability of the temperature and air pressure is very high. A slight fluctuation will seriously affect the quality of glass production, resulting in defective Second, the exhaust air volume outside the glass annealing kiln is small, and the exhaust outlets are scattered, which is inconvenient for recycling

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