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CN-224226944-U - Gas heating device by rising pipe waste heat

CN224226944UCN 224226944 UCN224226944 UCN 224226944UCN-224226944-U

Abstract

The utility model relates to the technical field of coking equipment, in particular to a device for heating coal gas by using waste heat of a rising pipe. The vertical type gas inlet main pipe comprises a rising pipe body, a gas inlet branch pipe, a gas inlet main pipe, a gas outlet branch pipe and a gas outlet main pipe, wherein the rising pipe body is of a vertical structure and comprises an inner barrel body, an outer barrel body and fins, the inner barrel body is arranged in the outer barrel body, a cavity is formed between the inner barrel body and the outer barrel body to form a jacket, the fins are fixedly connected to the outer wall of the inner barrel body and are positioned in the jacket, a raw gas inlet is formed in the lower portion of the rising pipe body, a raw gas outlet is formed in the upper portion of the rising pipe body, one end of the gas inlet branch pipe is fixedly connected to the outer barrel body and communicated with the jacket, the other end of the gas inlet branch pipe is communicated with the gas inlet main pipe, and one end of the gas outlet branch pipe is fixedly connected to the outer barrel body and communicated with the jacket and the other end of the gas outlet main pipe. The heat exchange medium is coal gas, the raw coal gas is used for heating the coal gas, raise the temperature of gas and reduce the heating gas consumption of coke oven.

Inventors

  • DUAN MENGLIN
  • XIAO CHANGZHI

Assignees

  • 中冶焦耐(大连)工程技术有限公司

Dates

Publication Date
20260512
Application Date
20250320

Claims (8)

  1. 1. The utility model provides a tedge waste heat heating gas device which characterized in that: Comprises a riser body, a gas inlet branch pipe, a gas inlet main pipe, a gas outlet branch pipe and a gas outlet main pipe; the rising pipe body is of a vertical structure and comprises an inner cylinder body, an outer cylinder body and fins, wherein the inner cylinder body is arranged in the outer cylinder body, a cavity is formed between the inner cylinder body and the outer cylinder body to form a jacket, and the fins are fixedly connected to the outer wall of the inner cylinder body and are positioned in the jacket; One end of the gas inlet branch pipe is fixedly connected with the outer cylinder body and communicated with the jacket, and the other end of the gas inlet branch pipe is communicated with the gas inlet main pipe; one end of the gas outlet branch pipe is fixedly connected with the outer cylinder body and communicated with the jacket, and the other end of the gas outlet branch pipe is communicated with the gas outlet main pipe.
  2. 2. The riser waste heat heating gas apparatus of claim 1, wherein: the flange is a jacket flange and is fixedly connected to the upper end and the lower end of the ascending pipe body.
  3. 3. The riser waste heat heating gas apparatus of claim 1, wherein: the ultrasonic descaling device comprises a host, a cable, a transducer and a waveguide, wherein the waveguide is fixedly connected to the flange, and the ultrasonic descaling device is used for removing impurities on the inner cylinder and the inner wall of the flange.
  4. 4. The riser waste heat heating gas apparatus of claim 1, wherein: still include the heat preservation, the heat preservation sets up outside the outer barrel.
  5. 5. The riser waste heat heating gas apparatus of claim 1, wherein: an expansion joint is arranged in the middle of the outer cylinder body.
  6. 6. The riser waste heat heating gas apparatus of claim 1, wherein: the fins are spiral fins.
  7. 7. The riser waste heat heating gas apparatus of claim 1, wherein: and the gas inlet branch pipe is provided with a gas inlet valve.
  8. 8. The riser waste heat heating gas apparatus of claim 1, wherein: and the gas outlet branch pipe is provided with a gas outlet valve.

Description

Gas heating device by rising pipe waste heat Technical Field The utility model relates to the technical field of coking equipment, in particular to a device for heating coal gas by using waste heat of a rising pipe. Background The heat loss in the coking process mainly comprises 4 parts of furnace outlet red Jiao Xianre, raw gas sensible heat, coke oven flue gas sensible heat and furnace body surface heat dissipation. The temperature of the raw coke oven gas is about 650-750 ℃, and the sensible heat of the raw coke oven gas accounts for about 36% of the heat distribution of the coke oven. The method for treating the raw gas in the coking industry at the present stage is to spray a certain amount of circulating ammonia water at 70-75 ℃ to the raw gas, and the raw gas can be recycled and treated by the chemical production section along with the heat absorption and evaporation of the circulating ammonia water and the reduction of the temperature of the raw gas. Such process treatment results in serious waste of raw gas sensible heat. The coke oven raw gas waste heat utilization technology is an environment-friendly new technology for recovering the sensible heat of raw gas, realizing energy conservation and emission reduction and creating economic benefits. However, deformation and leakage are easy to occur in the application process of the coke oven riser waste heat utilization technology. And when the problems occur, the working medium cannot be prevented from entering the carbonization chamber of the coke oven, and the safety and stability of the coke oven production cannot be ensured. Meanwhile, the temperature (more than or equal to 450 ℃) of the inner wall of the riser evaporator cannot be effectively controlled, a large amount of tar condensation temperature area cannot be avoided, and the problems of coking oil in the riser, graphitization blocking of the riser and environmental protection (smoking) caused by the coking oil in the riser are easily caused. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides a rising pipe waste heat heating gas device, wherein a heat exchange medium is gas, the gas is heated by raw gas, the gas temperature is increased, and the heating gas consumption of a coke oven is reduced. In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme: The rising pipe waste heat gas heating device comprises a rising pipe body, a gas inlet branch pipe, a gas inlet main pipe, a gas outlet branch pipe and a gas outlet main pipe, wherein the rising pipe body is of a vertical structure and comprises an inner barrel body, an outer barrel body and fins, the inner barrel body is arranged in the outer barrel body, a cavity is formed between the inner barrel body and the outer barrel body to form a jacket, the fins are fixedly connected to the outer wall of the inner barrel body and are positioned in the jacket, a raw gas inlet is formed in the lower portion of the rising pipe body, a raw gas outlet is formed in the upper portion of the rising pipe body, one end of the gas inlet branch pipe is fixedly connected to the outer barrel body and communicated with the jacket, the other end of the gas outlet branch pipe is fixedly connected to the outer barrel body and communicated with the jacket, and the other end of the gas outlet branch pipe is communicated with the gas outlet main pipe. Further, the lifting pipe comprises a flange, wherein the flange is a jacket flange and is fixedly connected with the upper end and the lower end of the lifting pipe body. Further, the ultrasonic descaling device comprises a host, a cable, a transducer and a waveguide, wherein the waveguide is fixedly connected to the flange, and the ultrasonic descaling device is used for removing impurities on the inner cylinder and the inner wall of the flange. Further, the heat-insulating sleeve further comprises a heat-insulating layer, and the heat-insulating layer is arranged outside the outer cylinder. Further, an expansion joint is arranged in the middle of the outer cylinder body. Further, the fins are spiral fins. Further, a gas inlet valve is arranged on the gas inlet branch pipe. Further, a gas outlet valve is arranged on the gas outlet branch pipe. Compared with the prior art, the utility model has the beneficial effects that: 1) The utility model relates to a vertical type rising pipe body which comprises an outer cylinder body, an inner cylinder body and fins fixedly connected with the inner cylinder body, wherein a cavity between the outer cylinder body and the inner cylinder body is a jacket, the lower part of the rising pipe body is a raw gas inlet, the upper part of the rising pipe body is a raw gas outlet, and a gas pipeline is communicated with the jacket. The heat exchange medium is coal gas, and the raw coal gas is heated by the structure, so that the temperature of the coal gas is increased, and the heat