CN210964369U

CN210964369U - Coke oven tedge waste heat recovery device

Info

Publication number: CN210964369U
Application number: CN201921622479.7U
Authority: CN
Inventors: 王国顺
Original assignee: Inner Mongolia Huanghe Industry And Trade Group Qianlishan Coal Coking Co ltd
Current assignee: Inner Mongolia Huanghe Industry And Trade Group Qianlishan Coal Coking Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-10
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a coke oven tedge waste heat recovery device, a heat preservation sleeve is sleeved outside an outer sleeve, a heating cavity is arranged between an inner sleeve and the outer sleeve, the side end of the inner side of the inner sleeve is spirally welded with a spiral heat conducting fin, the top position of one side of the outer sleeve is connected with a water inlet pipe, the side part of the outer sleeve is connected with a pressure relief pipe at the same side of the water inlet pipe, and the side part of the outer sleeve is connected with a water outlet pipe at the same side of a steam outlet pipe, the utility model can rapidly guide heat carried by raw gas entering the inner sleeve into the heating cavity through the inner sleeve, the outer sleeve, the heat preservation sleeve, the heating cavity, the spiral heat conducting fin, the water inlet pipe, the pressure relief pipe, the steam outlet pipe and the water outlet pipe, and then the cooling water is guided into the heating cavity to, meanwhile, the heat insulation sleeve avoids the phenomenon of heat dissipation in the outer sleeve.

Description

Coke oven tedge waste heat recovery device

Technical Field

The utility model relates to a waste heat recovery technical field specifically is a coke oven tedge waste heat recovery device.

Background

At present, with the high importance of a coking plant on resource recycling, the waste heat recovery of raw gas is one of the main ways for reducing the energy consumption of a coke oven, the former cooling mode is to spray a large amount of 70-75 ℃ circulating ammonia water to high-temperature raw gas, the high-temperature raw gas is cooled to 82-85 ℃ due to the large amount of evaporation of the circulating ammonia water, and then is cooled to 22-35 ℃ through a primary cooler, the raw gas carries out heat and is wasted, while the existing treatment mode is to make the high-temperature raw gas escaping from a coking chamber pass through an ascending pipe heat exchanger and enter a gas collecting pipe, and the raw gas escaping from the coking chamber through the ascending pipe at 650-850 ℃ carries out heat which accounts for 36% of the total output heat of the coke oven, so the research and development of the waste heat recovery and utilization technology of the raw gas is significant;

because traditional recovery unit lacks heat conduction and heat retaining subassembly when retrieving raw coke oven gas waste heat, lead to the heat can not be quick on the one hand leading-in to the outer tube in, the outer tube makes the inside heat of outer tube also appear losing the phenomenon easily owing to lack the heat preservation measure simultaneously, and then has reduced the efficiency of heat recovery.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coking coal stove tedge waste heat recovery device can effectively solve and propose in the above-mentioned background art because traditional recovery unit lacks heat conduction and heat retaining subassembly when retrieving raw coke oven gas waste heat, leads to the heat can not be quick to leading-in to the overcoat pipe in the one hand, and the outer tube is simultaneously owing to lack the heat preservation measure and make the inside heat of outer tube also appear the phenomenon of scattering and disappearing easily, and then has reduced the problem of heat recovery's efficiency.

In order to achieve the above object, the utility model provides a following technical scheme: a coke oven riser waste heat recovery device comprises an air inlet pipe, wherein a filter box is fixedly installed at the top of the air inlet pipe, an inner sleeve is installed at the top end of the air inlet pipe, an outer sleeve is sleeved outside the inner sleeve, a heat preservation sleeve is sleeved outside the outer sleeve, a heating cavity is formed between the inner sleeve and the outer sleeve, a spiral heat conducting fin is spirally welded at the edge end inside the inner sleeve, a water inlet pipe is connected at the top position of one side of the outer sleeve, a pressure relief pipe is connected at the same side of the edge part of the outer sleeve and the water inlet pipe, a steam discharge pipe is connected at the top position of the other side of the;

the top end and the bottom end of the inner sleeve are both provided with a first connecting flange, the top end of the inner sleeve is connected with an exhaust pipe, the top end of the air inlet pipe and the bottom end of the exhaust pipe are both provided with a second connecting flange, and the first connecting flange and the second connecting flange are fixedly connected through flange fixing bolts;

the filter box is characterized in that an embedded groove is formed in one side edge of the filter box, an installation frame plate is embedded and slidably connected in the embedded groove, a first filter screen is fixedly installed in the installation frame plate in an embedded mode, sealing strips are bonded at positions, located in the embedded groove, of two side edges of the installation frame plate, and a handle is fixedly installed at the edge of the installation frame plate.

Preferably, the water inlet pipe, the pressure relief pipe, the steam discharge pipe and the drain pipe penetrate through the heat insulation sleeve and the outer sleeve to be communicated with the heating cavity, and control valves are mounted on the edge portions of the water inlet pipe, the pressure relief pipe, the steam discharge pipe and the drain pipe.

Preferably, the pipeline connecting flange is installed on the bottom end of the air inlet pipe and the top end of the exhaust pipe, and installation screw holes are formed in the edge portion of the pipeline connecting flange.

Preferably, the sealing groove is formed in the position, corresponding to the sealing strip, of the side end of the inner side of the embedding groove, and the sealing strip is embedded in the sealing groove and is in fit connection with the sealing groove.

Preferably, the connecting groove has been seted up to the inboard top position department of blast pipe, the inside embedding of connecting groove installs the installation crown plate, fixed connection between the fixed screw of installation crown plate through its limit portion and the connecting groove, and the inboard embedding of installation crown plate installs the second filter screen.

Preferably, the inner diameter of the connecting groove is equal to the diameter of the mounting ring plate, and the fixing screw holes are formed in the positions, corresponding to the fixing screws, in the connecting groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. through interior sleeve pipe, outer tube, the insulation cover, the heating cavity, the spiral conducting strip, the inlet tube, the pressure release pipe, steam discharging pipe and drain pipe can be with getting into the quick leading-in to the heating cavity of the heat that interior intraductal crude gas of endotheca carried, recycle the inlet tube and heat the leading-in heating cavity of cooling water, make water conversion hot water and vapor so that carry out make full use of the heat, the phenomenon that the inside heat production of overcoat pipe scatters and disappears is avoided to the insulation cover simultaneously.

2. Can carry out filtration treatment to entering into interior sheathed tube raw coke oven gas through gomphosis groove, installation frame plate, first filter screen, sealing strip and handle, and then avoid the inside doped debris of raw coke oven gas to form including sheathed tube inner wall and pile up, lead to influencing interior sheathed tube heat conduction efficiency, first filter screen convenient to detach makes people become more convenient when changing it simultaneously.

3. Through first flange, second flange and flange fixing bolt be convenient for carry out quick connection between interior sheathed tube top and bottom and intake pipe and the blast pipe, and then make people become more convenient when dismantling the clearance between interior sleeve pipe, outer tube, intake pipe and blast pipe.

4. Through spread groove, installation crown plate, fixed screw and second filter screen can carry out the filtration once more to it when crude gas is discharged, and then make crude gas inside not producing debris when discharging, further reduced the follow-up degree of difficulty of handling crude gas.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the installation structure of the installation frame plate of the present invention;

fig. 3 is a cross-sectional view of the inner and outer sleeves of the present invention;

FIG. 4 is a schematic view of the installation structure of the installation ring plate of the present invention;

reference numbers in the figures: 1. an air inlet pipe; 2. a filter box; 3. an inner sleeve; 4. an outer sleeve; 5. a thermal insulation sleeve; 6. heating the cavity; 7. a spiral heat conducting fin; 8. a water inlet pipe; 9. a pressure relief pipe; 10. a steam discharge pipe; 11. a drain pipe; 12. a first connecting flange; 13. a second connecting flange; 14. a flange fixing bolt; 15. a fitting groove; 16. installing a frame plate; 17. a first filter screen; 18. a sealing strip; 19. a handle; 20. an exhaust pipe; 21. connecting grooves; 22. installing a ring plate; 23. fixing screws; 24. a second filter.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-4, the utility model provides a technical scheme, a coke oven riser waste heat recovery device, which comprises an air inlet pipe 1, a filter box 2 is fixedly installed on the top of the air inlet pipe 1, an inner sleeve pipe 3 is installed on the top of the air inlet pipe 1, an outer sleeve pipe 4 is sleeved outside the inner sleeve pipe 3, a heat preservation sleeve 5 is sleeved outside the outer sleeve pipe 4, a heating cavity 6 is arranged between the inner sleeve pipe 3 and the outer sleeve pipe 4, a spiral heat conducting fin 7 is spirally welded on the inner side end of the inner sleeve pipe 3, a water inlet pipe 8 is connected at the top position of one side of the outer sleeve pipe 4, a pressure relief pipe 9 is connected at the same side of the edge of the outer sleeve pipe 4 and the water inlet pipe 8, a steam discharge pipe 10 is connected at the top position of the other side of the outer sleeve pipe 4, a water discharge pipe 11 is connected at, control valves are arranged on the edges of the water inlet pipe 8, the pressure relief pipe 9, the steam discharge pipe 10 and the water discharge pipe 11, so that the water inlet pipe 8, the pressure relief pipe 9, the steam discharge pipe 10 and the water discharge pipe 11 can be conveniently communicated with the heating cavity 6, and the water inlet pipe 8, the pressure relief pipe 9, the steam discharge pipe 10 and the water discharge pipe 11 can be conveniently opened and closed;

the top end and the bottom end of the inner sleeve 3 are respectively provided with a first connecting flange 12, the top end of the inner sleeve 3 is connected with an exhaust pipe 20, the bottom end of the air inlet pipe 1 and the top end of the exhaust pipe 20 are respectively provided with a pipeline connecting flange, the edge parts of the pipeline connecting flanges are respectively provided with a mounting screw hole, so that the air inlet pipe 1 and the exhaust pipe 20 are conveniently connected with a raw gas connecting pipeline, the top end of the air inlet pipe 1 and the bottom end of the exhaust pipe 20 are respectively provided with a second connecting flange 13, and the first connecting flange 12 is fixedly connected with the second connecting flange 13 through;

the gomphosis groove 15 has been seted up to rose box 2 one side limit portion, the inside embedding sliding connection in gomphosis groove 15 has installation deckle board 16, the inboard embedding fixed mounting of installation deckle board 16 has first filter screen 17, first filter screen 17 is thick stainless steel filtration grid, the both sides limit end of installation deckle board 16 is located gomphosis groove 15 internal portion position department and all has bonded sealing strip 18, the inboard limit end of gomphosis groove 15 all has seted up the seal groove with sealing strip 18 corresponding position department, and sealing strip 18 inlays between the seal groove and the closure connection, make installation deckle board 16 possess higher leakproofness after inserting the gomphosis inslot 15, installation deckle board 16 limit end fixed mounting has handle 19.

Connecting groove 21 has been seted up to the inboard top position department of blast pipe 20, installation crown plate 22 is installed in the inside embedding of connecting groove 21, fixed connection between installation crown plate 22 and the connecting groove 21 through the fixed screw 23 of its limit portion, the internal diameter of connecting groove 21 equals with installation crown plate 22's diameter, and connecting groove 21 is inside to correspond position department with fixed screw 23 and has all seted up fixed screw, be convenient for be connected and fixed between installation crown plate 22 and the connecting groove 21, and the inboard embedding of installation crown plate 22 installs second filter screen 24, second filter screen 24 is thin stainless steel filtration grid.

The utility model discloses a theory of operation and use flow: in the practical application process of the coke oven ascending pipe waste heat recovery device, firstly, the gas inlet pipe 1 is connected with a raw coke oven gas pipeline through a pipeline connecting flange at the bottom of the gas inlet pipe, and then the water inlet pipe 8 is connected with an external cooling water pipeline;

when heat is actually recovered, raw gas with heat is guided into the filter box 2 through the air inlet pipe 1, coarse impurities doped in the raw gas are filtered through the first filter screen 17 inside the filter box 2, and therefore the phenomenon that the coarse impurities doped in the raw gas are attached to the inner wall of the inner sleeve 3 to cause accumulation is avoided, the first filter screen 17 is connected with the filter box 2 through the installation frame plate 16, and therefore people can more conveniently detach and clean the first filter screen 17;

after raw gas is filtered, the raw gas directly enters the inner sleeve 3, at the moment, heat carried in the raw gas is transferred to the heating cavity 6 by the aid of the spiral heat conducting fins 7, cooling water is heated by the aid of the heat, after the cooling water is heated, hot water can be timely conveyed by the aid of the drain pipe 11, further hot water carrying heat is prevented from being recycled by people, meanwhile, the steam discharge pipe 10 is opened, steam carrying heat is discharged at the moment, accordingly, people can conveniently utilize the steam carrying heat, the heat carried in the raw gas is utilized by the aid of the method, utilization efficiency of the heat in the raw gas is improved, meanwhile, the heat dissipation phenomenon of the heat in the heating cavity 6 can be avoided by the heat insulation sleeve 5 sleeved outside the outer sleeve 4, and the heat recycling effect is improved;

after raw coke oven gas passes through interior sleeve pipe 3 and outer tube 4 heat transfer, raw coke oven gas just directly enters into in the blast pipe 20 this moment, when raw coke oven gas is discharged from blast pipe 20, utilize the inside second filter screen 24 of blast pipe 20 to carry out filtration once more to discharged raw coke oven gas this moment, and then make raw coke oven gas inside not adulterate filth behind discharge blast pipe 20, second filter screen 24 is connected with blast pipe 20 through installation crown plate 22 simultaneously, and then make people become more convenient when clearing up second filter screen 24.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a coking coal stove tedge waste heat recovery device, includes intake pipe (1), its characterized in that: the filter box (2) is fixedly installed at the top of the air inlet pipe (1), the inner sleeve pipe (3) is installed at the top end of the air inlet pipe (1), the outer sleeve pipe (4) is sleeved outside the inner sleeve pipe (3), the heat preservation sleeve (5) is sleeved outside the outer sleeve pipe (4), the heating cavity (6) is formed between the inner sleeve pipe (3) and the outer sleeve pipe (4), the spiral heat conducting fins (7) are welded at the inner side edge end of the inner sleeve pipe (3) in a spiral mode, the water inlet pipe (8) is connected to the top position of one side of the outer sleeve pipe (4), the pressure relief pipe (9) is connected to the side of the outer sleeve pipe (4) and the water inlet pipe (8) at the same side, the steam discharge pipe (10) is connected to the top position of the;

the top end and the bottom end of the inner sleeve (3) are respectively provided with a first connecting flange (12), the top end of the inner sleeve (3) is connected with an exhaust pipe (20), the top end of the air inlet pipe (1) and the bottom end of the exhaust pipe (20) are respectively provided with a second connecting flange (13), and the first connecting flange (12) and the second connecting flange (13) are fixedly connected through flange fixing bolts (14);

the filter box is characterized in that an embedding groove (15) is formed in one side edge portion of the filter box (2), an installation frame plate (16) is connected to the embedding groove (15) in a sliding mode, a first filter screen (17) is fixedly installed on the inner side of the installation frame plate (16) in an embedding mode, sealing strips (18) are bonded to the positions, located in the embedding groove (15), of the two side edge ends of the installation frame plate (16), and a handle (19) is fixedly installed at the side edge ends of the installation frame plate (16).

2. The coke oven riser pipe waste heat recovery device of claim 1, wherein: the water inlet pipe (8), the pressure relief pipe (9), the steam discharge pipe (10) and the water discharge pipe (11) penetrate through the heat insulation sleeve (5) and the outer sleeve (4) to be communicated with the heating cavity (6), and control valves are mounted on the edge portions of the water inlet pipe (8), the pressure relief pipe (9), the steam discharge pipe (10) and the water discharge pipe (11).

3. The coke oven riser pipe waste heat recovery device of claim 1, wherein: the pipeline connecting flange is installed at the bottom end of the air inlet pipe (1) and the top end of the exhaust pipe (20), and installation screw holes are formed in the edge portion of the pipeline connecting flange.

4. The coke oven riser pipe waste heat recovery device of claim 1, wherein: the sealing grooves are formed in the positions, corresponding to the sealing strips (18), of the inner side edge ends of the embedding grooves (15), and the sealing strips (18) are embedded in the sealing grooves and are in fit connection with the sealing grooves.

5. The coke oven riser pipe waste heat recovery device of claim 1, wherein: connecting groove (21) have been seted up to blast pipe (20) inboard top position department, installation crown plate (22) are installed to connecting groove (21) inside embedding, fixed connection between fixed screw (23) and connecting groove (21) through its limit portion installation crown plate (22), and second filter screen (24) are installed in installation crown plate (22) inboard embedding.

6. The coke oven riser pipe waste heat recovery device of claim 5, wherein: the internal diameter of connecting groove (21) equals with the diameter of installation crown plate (22), and fixed screw has all been seted up with fixed screw (23) corresponding position department in connecting groove (21) inside.