Coke oven raw gas rising pipe waste heat recovery device

Abstract

The invention relates to a coke oven raw gas rising pipe waste heat recovery device, which belongs to the technical field of heat energy recovery and utilization. The device includes upper and lower headers surrounding the inner wall of the coke oven raw gas rising pipe, and the upper and lower headers respectively lead a group of separate heat pipes through the inner wall of the coke oven raw gas rising pipe to connect the upper and lower headers to absorb heat. At the same time, they communicate upwardly with the two ends of the heat release end of the separated heat pipe through connecting pipelines, and the heat release end of the separate heat pipe is located in the heat exchange drum. The invention realizes rapid recovery of heat, and because the separated heat pipe is adopted, the arrangement is convenient, and by increasing the pressure of steam production, the wall temperature of the heat pipe can be ensured to be above the dew point of raw gas tar, so no coking problem will occur; and the separated heat pipe The amount of working medium in the tube is small, even if the heat tube is damaged, the steam-water mixture in the entire steam drum will not leak into the carbonization chamber like the water jacket, so it will not cause safety accidents and can ensure the safe operation of the coke oven.

Description

technical field [0001] The invention relates to a waste heat recovery device, in particular to a coke oven raw gas riser waste heat recovery device, which belongs to the technical field of heat energy recovery and utilization. Background technique [0002] The iron and steel industry is a high-input, high-output industry, as well as a high-energy-consumption industry. In recent years, with the increasingly tense energy supply, the domestic and foreign iron and steel industries have paid more and more attention to the application of new energy-saving technologies. is one of them. As far as the applicant knows, this technology has not been successfully applied in iron and steel enterprises, and many iron and steel enterprises still use the traditional way of spraying ammonia water to cool the raw gas, resulting in a large amount of waste heat resources that cannot be recycled and lost in vain. [0003] In 1971, some iron and steel enterprises first adopted the riser jacket he...

AI Technical Summary

Problems solved by technology

These are not separated from the basic structure of the jacketed heat exchanger, so there are still problems of coking at the root of the jacket and leakage of the water jacket. In severe cases, it will cause the steam drum water to leak into the carbonization chamber and cause a safety accident.

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