Coke oven three-way bridge pipeline heat exchanger device

Abstract

The invention relates to the field of heat exchangers and particularly relates to a coke oven three-way bridge pipeline heat exchanger device. The coke oven three-way bridge pipeline heat exchanger device comprises a vertical pipe section and a horizontal pipe section connected with the vertical pipe section, wherein a smoke inlet is formed in the lower end of the vertical pipe section and a coke cleaning hole is formed in the upper end; a smoke outlet is formed in the tail end of the horizontal pipe section, wherein the device is characterized in that a heat exchange tube sleeve is arranged inside the vertical pipe section, wherein the heat exchange tube sleeve comprises a heat exchange inner sleeve and a heat exchange outer sleeve; an inlet pipe hole connected with the heat exchange outer sleeve is formed in the upper part of the vertical pipe section, and an outer pipe hole connected with the heat exchange outer sleeve is formed in the other side of the lower part of the vertical pipe section; a guide plate flow is respectively arranged on each of the inlet pipe hole and the outlet pipe hole; and a heat insulating layer is arranged on the outer wall of the heat exchange outer sleeve, and a heat conduction coating is arranged on the inner wall of the heat exchange inner sleeve. By adopting the coke oven three-way bridge pipeline heat exchanger device, the raw coke oven gas afterheat is reused, the utilization rate is increased and the energy is saved.

Description

technical field [0001] The invention relates to the field of heat exchangers, in particular to a coke oven tee bridge tube heat exchanger device. Background technique [0002] At present, the heat carried by the raw coal gas at 650°C to 800°C escaping from the carbonization chamber through the riser accounts for 36% of the total heat of the coke oven. In order to cool the high-temperature raw gas, it is necessary to spray a large amount of circulating ammonia water at 70°C to 75°C. The high-temperature raw gas is cooled to 82°C to 85°C due to the evaporation of a large amount of circulating ammonia water, and then cooled to 22°C to 35°C through the primary cooler. The heat taken out by the gas is wasted. About 75-80% of the heat released by gas when the gas collecting pipe is cooled is used to evaporate ammonia water, 10-15% makes ammonia water heat up, and the heat dissipation loss of gas collecting pipe accounts for about 10%. So far, no mature and reliable recycling dev...

AI Technical Summary

Problems solved by technology

So far, no mature and reliable recycling device has been put into operation. Many coking enterprises at home and abroad have done many experiments and researches on the recycling of raw gas waste heat in the rising pipe of the coke oven, and many units have carried out technical transformation and application, but It is not ideal for the treatment of high temperature, the treatment of harsh working conditions when starting and stopping, and the treatment of internal deposits of tar and coke

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