CN217541567U

CN217541567U - Coke oven ascending pipe heat exchanger

Info

Publication number: CN217541567U
Application number: CN202221338037.1U
Authority: CN
Inventors: 许文军; 徐成
Original assignee: Shandong Dongzun Huatai Environmental Protection Technology Co ltd
Current assignee: Shandong Dongzun Huatai Environmental Protection Technology Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-10-04
Anticipated expiration: 2032-05-31

Abstract

A coke oven ascending pipe heat exchanger comprises a first heat exchange pipe, a second heat exchange pipe and a third heat exchange pipe, wherein the first heat exchange pipe, the second heat exchange pipe and the third heat exchange pipe are sequentially arranged from left to right, a smoke inlet pipe is connected and arranged at the left end of the first heat exchange pipe, a smoke outlet pipe is connected and arranged at the right end of the third heat exchange pipe, a first connecting pipe is connected and arranged between the right end of the first heat exchange pipe and the left end of the second heat exchange pipe, a second connecting pipe is connected and arranged at the lower side of the second heat exchange pipe, a first water feeding pipe is connected and arranged at one side of the middle part of the second water feeding pipe, the other end of the first water feeding pipe is connected and arranged at the upper side of the first heat exchange pipe, a third water feeding pipe is connected and arranged at one side of the middle part of the third water feeding pipe, and the other end of the second water feeding pipe is connected and arranged at the upper side of the second heat exchange pipe. Compared with the prior art, the utility model the advantage lies in: the heat exchange can be carried out independently, the multistage heating heat exchange can be carried out, and the heat exchange mode can be adjusted according to the temperature requirement of industrial water.

Description

Coke oven ascending pipe heat exchanger

Technical Field

The utility model relates to the technical field of heat exchange equipment, in particular to a coke oven ascending pipe heat exchanger.

Background

The efficient recycling of waste heat resources generated in the coking process is the main direction and potential of energy conservation of green coke-oven plants with resource conservation and environmental friendliness, and is also one of the main ways for improving the efficiency. Analysis shows that the crude gas overflowing from the coking chamber through the riser at 650-800 ℃ carries out heat which accounts for about 36 percent of the total heat of the coke oven. In order to cool the high-temperature raw gas, a large amount of 70-75 ℃ circulating ammonia water must be sprayed, the high-temperature raw gas is cooled to 82-85 ℃ due to the evaporation of a large amount of unreal ammonia water, and then is cooled to 22-35 ℃ through a primary cooler, and the heat brought by the raw gas is wasted. There are therefore a wide variety of coke oven risers available to capture and utilize this heat.

The existing coke oven ascending pipe has the following problems: 1. the external temperature of the ascending pipe is very high, and the heat waste is large; 2. the heat exchange temperature is single, and the heat exchange water temperature can not be adjusted according to the industrial water requirement, so that the heat waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coke oven tedge heat exchanger, including heat exchange tube one, heat exchange tube two and heat exchange tube three, heat exchange tube one, heat exchange tube two and heat exchange tube three are arranged in proper order from a left side to the right side, heat exchange tube one left end is connected and is equipped with into the tobacco pipe, the connection of heat exchange tube three right-hand members is equipped with out the tobacco pipe, it is equipped with connecting pipe one to connect between heat exchange tube one right-hand member and the two left ends of heat exchange tube, it is equipped with connecting pipe two to connect between two right-hand members of heat exchange tube and the three left ends of heat exchange tube, heat exchange tube one side connection is equipped with drain pipe one, drain pipe one lower part is equipped with water control valve one, the connection of two downside of heat exchange tube is equipped with drain pipe two, drain pipe two lower parts are equipped with water control valve two, the connection of two middle part sides of drain pipe is equipped with water supply pipe one, the one other end of water supply pipe is connected with heat exchange tube one upside, water supply pipe one lower part is equipped with water control valve three, three lower part is equipped with water control valve four, three middle part connection of drain pipe is equipped with water supply pipe two.

As an improvement: the first water supply pipe is wound on the outer side of the first connecting pipe, and the second water supply pipe is wound on the outer side of the second connecting pipe.

As an improvement: the upper side of the heat exchange tube I is connected with a water inlet tube I, the upper side of the heat exchange tube II is connected with a water inlet tube II, and the upper side of the heat exchange tube III is connected with a water inlet tube III.

As an improvement: the first heat exchange tube, the second heat exchange tube and the third heat exchange tube have the same internal structure.

As an improvement: the left and right sides of the first heat exchange tube, the second heat exchange tube and the third heat exchange tube are respectively provided with connecting plates in an integrated forming mode, a multi-component smoke tube penetrates through the connecting plates and is arranged between the two groups of connecting plates, and sealing connecting rings are connected between the two ends of the smoke tube and the connecting plates.

As an improvement: and the axes of the multiple groups of smoke distributing pipes are parallel to the axes of the first heat exchange pipe, the second heat exchange pipe and the third heat exchange pipe respectively.

Compared with the prior art, the utility model the advantage lies in: the heat exchanger is provided with three groups of heat exchange tubes, wherein the three groups of heat exchange tubes are provided with independent water inlet tubes and independent water outlet tubes, so that heat exchange can be carried out independently, water supply tubes are arranged among the three groups of heat exchange tubes, multi-stage heating heat exchange can be carried out, and the heat exchange mode can be adjusted according to the temperature requirement of industrial water; two sets of connecting pipes are the heat dissipation material, make the inside heat temperature of three group's heat exchange tubes decrease progressively to at the heat transfer in-process that heaies up, the connecting pipe can be with the flow pipe in heat transfer to the outside, can not cause the heat waste.

Drawings

FIG. 1 is a front view of a coke oven riser heat exchanger of the present invention;

FIG. 2 is a schematic view of the internal structure of a heat exchange tube of a coke oven ascending tube heat exchanger

Reference numerals comparison table:

1. a first heat exchange tube; 2. a second heat exchange tube; 3. a third heat exchange pipe; 4. a smoke inlet pipe; 5. discharging the smoke tube; 6. a first connecting pipe; 7. a second connecting pipe; 8. a first water inlet pipe; 9. a first water drainage pipe; 10. a first water control valve; 11. a water inlet pipe II; 12. a second water drainage pipe; 13. a second water control valve; 14. a first water supply pipe; 15. a water control valve III; 16. a sealing connection ring; 17. a water inlet pipe III; 18. a third water drainage pipe; 19. a fourth water control valve; 20. a water supply pipe II; 21. a fifth water control valve; 22. a connecting plate; 23. a smoke distributing pipe.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

As shown in fig. 1-2, a coke oven ascension pipe heat exchanger comprises a first heat exchange pipe 1, a second heat exchange pipe 2 and a third heat exchange pipe 3, wherein the first heat exchange pipe 1, the second heat exchange pipe 2 and the third heat exchange pipe 3 are sequentially arranged from left to right, a smoke inlet pipe 4 is connected and arranged at the left end of the first heat exchange pipe 1, a smoke outlet pipe 5 is connected and arranged at the right end of the third heat exchange pipe 3, a first connecting pipe 6 is connected and arranged between the right end of the first heat exchange pipe 1 and the left end of the second heat exchange pipe 2, a second connecting pipe 7 is connected and arranged between the right end of the second heat exchange pipe 2 and the left end of the third heat exchange pipe 3, a first drain pipe 9 is connected and arranged at the lower side of the first heat exchange pipe 9, a first water control pipe 10 is arranged at the lower part of the first drain pipe 2, a second drain pipe 12 is connected and arranged at the lower part of the second drain pipe 12, a first water supply pipe 14 is connected and arranged at one side of the middle part of the second drain pipe 12, a first water supply pipe 14 is connected and arranged at the upper side of the first heat exchange pipe 1, a third water supply pipe 15 is arranged at the lower part of the heat exchange pipe 3, a third water supply pipe 18 is connected and arranged at the lower part of the drain pipe 18, a third water supply pipe 20, a water supply pipe 20 is arranged at the lower part of the drain pipe 20, and a water supply pipe 20.

The first water supply pipe 14 is wound on the outer side of the first connecting pipe 6, and the second water supply pipe 20 is wound on the outer side of the second connecting pipe 7.

The upper side of the first heat exchange tube 1 is connected with a first water inlet pipe 8, the upper side of the second heat exchange tube 2 is connected with a second water inlet pipe 11, and the upper side of the third heat exchange tube 3 is connected with a third water inlet pipe 17.

The heat exchange tubes I1, II 2 and III 3 are identical in internal structure.

The left side and the right side of the heat exchange tube I1, the heat exchange tube II 2 and the heat exchange tube III 3 are respectively provided with connecting plates 22 in an integrated forming mode, a multi-component smoke tube 23 penetrates through and is connected between the two groups of connecting plates 22, sealing connecting rings 16 are connected between the two ends of the smoke tube 23 and the connecting plates 22, the heat exchange area is enlarged through the multi-component smoke tube 23, and heat waste is reduced.

The axes of the multiple groups of smoke distributing pipes 23 are parallel to the axes of the heat exchange pipe I1, the heat exchange pipe II 2 and the heat exchange pipe III 3.

The utility model discloses when the concrete implementation, the heat that the raw coke oven gas was taken out sends into heat exchange tube one 1, in heat exchange tube two 2 and the heat exchange tube three 3 in proper order through going into tobacco pipe 4, connecting pipe one 6 and connecting pipe two 7 are the heat dissipation material, make the heat temperature of heat exchange tube one 1, the heat exchange tube two 2 and the heat exchange tube three 3 inside progressively decrease, when needing to carry out independent heat transfer, through inlet pipe one 8, inlet pipe two 11 and inlet pipe three 17 respectively to heat exchange tube one 1, heat exchange tube two 2 and heat exchange tube three 3 water injection, close water control valve three 15 and water control valve five 21, make water supply pipe one 14 and water supply pipe two 20 cut off, open water control valve one 10, water control valve two 13 and water control valve four 19, can adjust the heat transfer temperature according to the velocity of rivers, carry out the heat transfer and obtain industrial hot water, discharge through drain pipe one 9, drain pipe two 12 and drain pipe three 18; when industrial hot water with higher temperature is needed, multi-stage heating heat exchange can be carried out, firstly, the second water control valve 13 and the fourth water control valve 19 are closed, the third water control valve 15 and the fifth water control valve 21 are opened, the first water control valve 10 is opened, at the moment, external water supply is not needed for the first water inlet pipe 8 and the second water inlet pipe 11, external water supply is carried out only through the third water inlet pipe 17, water is injected into the third heat exchange pipe 3 through the third water inlet pipe 17 to carry out primary heat exchange, the hot water after primary heat exchange is sent into the second heat exchange pipe 2 through the third water discharge pipe 18 and the second water supply pipe 20, secondary heat exchange is carried out again to enable the water temperature to rise again, the hot water after secondary heat exchange is sent into the first heat exchange pipe 1 through the second water discharge pipe 12 and the first water supply pipe 14, third heat exchange is carried out again to enable the water temperature to rise for the third time, the heat exchange temperature is adjusted according to the flow rate of the water, and the industrial hot water meeting the requirements is discharged through the first water discharge pipe 9.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a coke oven tedge heat exchanger, includes heat exchange tube one (1), heat exchange tube two (2) and heat exchange tube three (3), its characterized in that: the heat exchange tube I (1), the heat exchange tube II (2) and the heat exchange tube III (3) are sequentially arranged from left to right, the left end of the heat exchange tube I (1) is connected with a smoke inlet tube (4), the right end of the heat exchange tube III (3) is connected with a smoke outlet tube (5), a first connecting tube (6) is connected between the right end of the heat exchange tube I (1) and the left end of the heat exchange tube II (2), a second connecting tube (7) is connected between the right end of the heat exchange tube II (2) and the left end of the heat exchange tube III (3), a first drain tube (9) is connected to the lower side of the heat exchange tube I (1), a first water control valve (10) is arranged on the lower portion of the first drain tube I (9), a second drain tube (12) is connected to the lower side of the heat exchange tube II (2), a second water control valve (13) is arranged on the lower portion of the second drain tube (12), a first water supply tube (14) is connected to one side of the middle portion of the second drain tube II (12), the other end of the first water supply tube (14) is connected to the upper side of the heat exchange tube I (1), a third water supply tube (14) is connected to one side of the drain tube (18), a third water supply tube (18) is arranged on one side of the heat exchange tube (18), a water supply tube (20) and a fourth water supply tube (20) are connected to the drain tube (20), the lower part of the second water supply pipe (20) is connected with a fifth water control valve (21).

2. The coke oven riser heat exchanger of claim 1, wherein: the first water supply pipe (14) is wound on the outer side of the first connecting pipe (6), and the second water supply pipe (20) is wound on the outer side of the second connecting pipe (7).

3. The coke oven riser heat exchanger of claim 1, wherein: the upper side of the first heat exchange tube (1) is connected with a first water inlet pipe (8), the upper side of the second heat exchange tube (2) is connected with a second water inlet pipe (11), and the upper side of the third heat exchange tube (3) is connected with a third water inlet pipe (17).

4. The coke oven riser heat exchanger of claim 1, wherein: the heat exchange tube I (1), the heat exchange tube II (2) and the heat exchange tube III (3) are identical in internal structure.

5. The coke oven riser heat exchanger of claim 4, wherein: the left side and the right side of the heat exchange tube I (1), the heat exchange tube II (2) and the heat exchange tube III (3) are respectively provided with a connecting plate (22) in an integrated forming mode, the two groups of connecting plates (22) are connected through a multi-component smoke tube (23), and a sealing connecting ring (16) is connected between the two ends of the smoke tube (23) and the connecting plates (22).

6. The coke oven riser heat exchanger of claim 5, wherein: the axes of the multiple groups of smoke distributing pipes (23) are respectively parallel to the axes of the heat exchange pipe I (1), the heat exchange pipe II (2) and the heat exchange pipe III (3).