CN-224230731-U - Coke oven flue gas waste heat recovery device

Abstract

The utility model belongs to the technical field of coke oven waste heat utilization, and particularly discloses a coke oven flue gas waste heat recovery device which is used for solving the technical problem that waste heat cannot be effectively recovered due to flue gas flow resistance generated in a flue gas waste heat utilization process; the heat extraction main pipe is provided with a waste heat pipe in a surrounding and cladding mode, on one hand, the heat transfer arrangement of the high-temperature coke oven smoke is realized through the wrapping mode of the fluid to be transferred, the uniform arrangement of the annular divergent heat transfer component is matched, so that the high-temperature smoke cannot generate flow resistance in the flowing process, on the other hand, the synchronous heat transfer process of different fluids is realized through the guide structure matched with the mode of multi-fluid opposite running, the waste heat utilization efficiency of the high-temperature coke oven smoke is improved, the uniform heat conduction is realized under the interaction of the two, and the waste heat recovery and utilization efficiency of the coke oven smoke is realized while the heat loss is reduced.

Inventors

• LIU JIANGTAO
• CUI BING
• ZHAO YONGFENG
• YUAN JUN
• CHEN FANGFANG

Assignees

• 临涣焦化股份有限公司

Dates

Publication Date

20260512

Application Date

20250605

Claims (6)

1. 1. The coke oven flue gas waste heat recovery device comprises a heat extraction main pipe (1), and is characterized in that a waste heat pipe (2) is arranged on the outer side of the heat extraction main pipe (1) in a surrounding and coating mode, and the fluid flowing directions of the heat extraction main pipe (1) and the waste heat pipe (2) are opposite; The utility model discloses a heat extraction pipe, including waste heat pipe (2) and heat dissipation main pipe, a plurality of fluid send pipe (5) are installed jointly to the one end of waste heat pipe (2), a plurality of fluid intake pipe (6) are installed jointly to the other end of waste heat pipe (2), heat transfer guide ring (12) of arranging the setting are installed in the middle part suspension of heat extraction main pipe (1), the outside of heat transfer guide ring (12) is connected with heat conduction rod (13) that runs through to waste heat pipe (2) inside, install on heat conduction rod (13) with heat extraction main pipe (1) concentric homothermal pipe (14) that set up.
2. 2. The coke oven flue gas waste heat recovery device according to claim 1, wherein an air inlet pipe (3) is installed at one end of the heat extraction main pipe (1), an air inlet (8) is formed in the lower end of the air inlet pipe (3) and is communicated with the interior of the heat extraction main pipe (1), and an exhaust pipe (4) is installed at the other end of the heat extraction main pipe (1).
3. 3. A coke oven flue gas waste heat recovery device according to claim 2, wherein the inlet pipe (3) is vertical and facing downwards and the outlet pipe (4) is also vertical and facing upwards.
4. 4. A coke oven flue gas waste heat recovery device according to claim 2, wherein a baffle plate (11) is arranged on the lower side of the inner end of the main heat extraction pipe (1) close to the air inlet pipe (3), a guide post (15) aligned with the pipe orifice of the air inlet pipe (3) is arranged on the upper end of the baffle plate (11), and the section of the guide post (15) gradually diffuses from outside to inside.
5. 5. The coke oven flue gas waste heat recovery device according to claim 1, wherein the end part of the fluid feeding pipe (5) corresponding to each waste heat pipe (2) is provided with a split flow outlet (16), and the end part of the fluid feeding pipe (6) corresponding to each waste heat pipe (2) is provided with a split flow inlet (10).
6. 6. The coke oven flue gas waste heat recovery device according to claim 5, wherein one end of the fluid feed pipe (5) is provided with a discharge port (7), and one end of the fluid feed pipe (6) is provided with an inlet port (9).

Description

Coke oven flue gas waste heat recovery device Technical Field The utility model relates to the technical field of coke oven waste heat utilization, in particular to a coke oven flue gas waste heat recovery device. Background The coke oven is used as core equipment of the coking industry, the temperature of the flue gas generated in the operation process is up to more than 300 ℃, a large amount of unutilized waste heat resources are contained, and the direct discharge of the flue gas of the traditional coke oven not only causes energy waste, but also aggravates environmental pollution. In recent years, waste heat recovery technology has become a key direction of industrial energy conservation, and the core objective is to convert sensible heat and latent heat in flue gas into available energy sources, such as steam, hot water or electric power, through efficient heat transfer devices. In the prior art, refer to a coke oven flue gas waste heat recovery device based on environmental protection transformation of patent publication No. CN220959765U, it is through outer magnetism inhale the ring magnetism and inhale the ring and remove about in the flue gas conveying passageway in the drive of ring, realize coke oven flue gas pipeline's clearance, but its structure is complicated, and the wearing and tearing of subassembly are inhaled to the extremely easy emergence magnetism of flue gas waste heat utilization's long-term in-process, and increase flue gas flow resistance to be unfavorable for waste heat effective recovery. In view of the above technical drawbacks, a solution is now proposed. Disclosure of utility model The utility model aims to provide a coke oven flue gas waste heat recovery device which solves the problem that waste heat cannot be effectively recovered due to flue gas flow resistance generated in a flue gas waste heat utilization process. The utility model discloses a coke oven flue gas waste heat recovery device, which comprises a main heat extraction pipe, wherein waste heat pipes are arranged on the outer side of the main heat extraction pipe in a surrounding and wrapping mode, the fluid flowing directions of the main heat extraction pipe and the waste heat pipes are opposite, one ends of a plurality of waste heat pipes are provided with fluid conveying pipes together, the other ends of the waste heat pipes are provided with fluid inlet pipes together, the middle of the main heat extraction pipe is provided with heat transfer guide rings in a suspending mode, the outer side of the heat transfer guide rings is connected with heat conducting rods penetrating into the waste heat pipes, and the heat conducting rods are provided with uniform heat pipes concentric with the main heat extraction pipe. Preferably, an air inlet pipe is installed at one end of the heat extraction main pipe, an air inlet is formed in the lower end of the air inlet pipe and is communicated with the inside of the heat extraction main pipe, and an exhaust pipe is installed at the other end of the heat extraction main pipe. Preferably, the air inlet pipe is vertical and faces downward, and the air outlet pipe is also vertical and faces upward. Preferably, a baffle is arranged at the lower side of the inner end of the heat extraction main pipe, which is close to the air inlet pipe, a guide post aligned with the pipe orifice of the air inlet pipe is arranged at the upper end of the baffle, and the section of the guide post gradually spreads from outside to inside. Preferably, the fluid feeding pipe is provided with a split flow outlet corresponding to the end part of each waste heat pipe, and the fluid feeding pipe is provided with a split flow inlet corresponding to the end part of each waste heat pipe. Preferably, one end of the fluid feeding pipe is provided with a discharge port, and one end of the fluid inlet pipe is provided with an inlet port. The utility model has the beneficial effects that: (1) According to the utility model, on one hand, the heat transfer arrangement of the high-temperature coke oven smoke is realized in a wrapping mode of the fluid to be transferred, and the uniform arrangement of the annular divergent heat transfer component is matched, so that the high-temperature smoke can not generate flow resistance in the flowing process; (2) The waste heat utilization process is that the waste heat of the coke oven flue gas is led out to the main heat extraction pipe, the wrapping arrangement of the waste heat pipe is carried out on the periphery of the main heat extraction pipe, and then the annular divergent heat transfer component is utilized to complete the heat conduction of the coke oven flue gas, so that the low-temperature fluid in the waste heat pipe is effectively heated, the purpose of utilizing the waste heat of the coke oven flue gas is achieved, the flowing resistance is not generated in the process of utilizing the waste heat of the flue gas, the heat conduction is carried out in real time, a