CN220489193U - Flue gas waste heat recovery device - Google Patents
Flue gas waste heat recovery device Download PDFInfo
- Publication number
- CN220489193U CN220489193U CN202321894074.5U CN202321894074U CN220489193U CN 220489193 U CN220489193 U CN 220489193U CN 202321894074 U CN202321894074 U CN 202321894074U CN 220489193 U CN220489193 U CN 220489193U
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- Prior art keywords
- flue gas
- heat exchange
- pipe
- exchange box
- threaded
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 239000003546 flue gas Substances 0.000 title claims abstract description 93
- 239000002918 waste heat Substances 0.000 title claims abstract description 17
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000000779 smoke Substances 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- 239000003517 fume Substances 0.000 abstract 2
- 239000003500 flue dust Substances 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the technical field of power plant boilers, in particular to a flue gas waste heat recovery device which can filter flue dust convenient to clean and improve practicability while meeting the heat exchange of circulating water; including flue gas heat exchange box, exhaust fume pipe, inlet tube, water pump, outlet pipe and spiral heat exchange water pipe, flue gas heat exchange box output is linked together with exhaust fume pipe inner, still includes: the filter mechanism is used for filtering smoke dust particles in the heat exchange process and comprises a threaded rod, a threaded pipe, a top plate, a smoke inlet pipe, a spiral groove seat, a filter screen frame, a mounting ring and bolts, the output end of the transmission mechanism is connected with the bottom end of the threaded rod, the outer side of the threaded rod is connected with the inner side of the threaded pipe in a threaded manner, the top end of the threaded pipe is connected with the front side of the bottom end of the top plate, a group of spiral groove seats are respectively arranged in the left side and the right side of the top plate, the mounting ring is fixed in the spiral groove seat through bolts, the bottom end of the mounting ring is connected with the top end of the filter screen frame, and the inner side of the top plate top end is communicated with the inner end of the smoke inlet pipe.
Description
Technical Field
The utility model relates to the technical field of power plant boilers, in particular to a flue gas waste heat recovery device.
Background
A power plant boiler is a boiler that is used by a power plant to generate electricity. The general capacity is larger, the main power unit is 600MW, and the capacity of the ultra-supercritical boiler is up to 1000MW. The utility boilers are mainly of two types: pulverized coal furnaces and circulating fluidized bed boilers. These two types of boilers are the main types used in power stations. The biggest difference between fluidized bed furnaces and pulverized coal furnaces is the different states of fuel, i.e. liquid and pulverized coal.
In the use of power plant boiler, the flue gas that discharges usually contains corresponding waste heat recovery device, and current boiler flue gas waste heat recoverer like chinese publication No. CN205002644U is used with the fuel boiler cooperation, lets the flue gas that produces when using the fuel boiler pass through flue gas import, flue gas chamber and flue gas export, and when flue gas passed through the flue gas chamber, a large amount of heat energy in the flue gas heated the heat pipe, then transmitted in the heat exchange chamber, can heat the indoor water or the air of heat exchange through the heating plate. The cross section area of the flue gas chamber is larger than that of the flue gas inlet, and when the flue gas enters the flue gas chamber through the flue gas inlet, the flow speed of the flue gas is reduced, so that some solid particles are deposited in the flue gas chamber and are not directly discharged into the air. In summary, it has the positive effect of recovering part of the thermal energy and reducing the emissions of solid particles.
But the device is inconvenient to the clearance of the indoor filtering particles clearance of flue gas, and the practicality is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the smoke waste heat recovery device which can filter smoke dust convenient to clean and improve the practicability while meeting the heat exchange of circulating water.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flue gas waste heat recovery device, including flue gas heat exchange box, exhaust pipe, inlet tube, water pump, outlet pipe and spiral heat exchange water pipe, flue gas heat exchange box output is linked together with exhaust pipe inner, and flue gas heat exchange box one side is connected with the inlet tube, is provided with the water pump on the inlet tube, and spiral heat exchange water pipe sets up in the flue gas heat exchange box, and the inlet tube output is linked together with spiral heat exchange water pipe input, and flue gas heat exchange box opposite side is provided with the outlet pipe, and spiral heat exchange water pipe output is linked together with the outlet pipe input, still includes:
the filter mechanism is used for filtering smoke dust particles in the heat exchange process and comprises a threaded rod, a threaded pipe, a top plate, a smoke inlet pipe, a spiral groove seat, a filter screen frame, a mounting ring and bolts, the output end of the transmission mechanism is connected with the bottom end of the threaded rod, the outer side of the threaded rod is connected with the inner side of the threaded pipe in a threaded manner, the top end of the threaded pipe is connected with the front side of the bottom end of the top plate, a group of spiral groove seats are respectively arranged in the left side and the right side of the top plate, the mounting ring is fixed in the spiral groove seat through bolts, the bottom end of the mounting ring is connected with the top end of the filter screen frame, and the inner side of the top plate top end is communicated with the inner end of the smoke inlet pipe.
Preferably, the transmission mechanism comprises a transmission case, a first constraint sleeve, a driving connecting rod, a twisting disc, a small-diameter bevel gear, a second constraint sleeve and a large-diameter bevel gear, wherein the rear end of the transmission case is connected with the lower side of the front end of the flue gas heat exchange case, the first constraint sleeve is arranged in the middle of the front side of the transmission case, the driving connecting rod is rotationally constrained in the first constraint sleeve, the front side of the driving connecting rod is connected with the middle of the rear side of the large-diameter bevel gear, the rear side of the driving connecting rod is connected with the middle of the front side of the twisting disc, the middle of the upper side of the transmission case is provided with the second constraint sleeve, the lower side of the threaded rod is rotationally constrained in the second constraint sleeve, the bottom end of the threaded rod is connected with the middle of the top end of the small-diameter bevel gear, and the small-diameter bevel gear is meshed with the large-diameter bevel gear.
Preferably, the flue gas heat exchange box further comprises a heat insulation layer, and the inner side wall of the flue gas heat exchange box is connected with the outer side of the heat insulation layer.
Preferably, the flue gas heat exchange box further comprises fixing plates, and two sides of the rear end of the flue gas heat exchange box are respectively connected with the inner ends of a group of fixing plates.
Preferably, the flue gas heat exchange box further comprises a sealing ring contact pad, and the side of the top end ring of the flue gas heat exchange box is connected with the bottom end of the sealing ring contact pad.
Preferably, the flue gas heat exchange box further comprises a constraint frame, wherein the upper side of the front end of the flue gas heat exchange box is connected with the rear end of the constraint frame, and the inner side of the constraint frame is in sliding connection with the outer side of the threaded pipe.
Advantageous effects
Compared with the prior art, the utility model provides a flue gas waste heat recovery device, which has the following beneficial effects:
when the top plate is covered on the top end of the flue gas heat exchange box, the filter screen frame is positioned on the inner side of the flue gas heat exchange box, flue gas is fed through the flue gas feeding pipe, meanwhile, the water pump acts on the water feeding pipe to feed cold water, the water is fed into the spiral heat exchange water pipe for heat exchange, heated water is discharged through the water discharging pipe, the flue gas is filtered by the filter screen frame and discharged through the flue gas discharging pipe, when the inside of the filter screen frame is required to be cleaned, the threaded rod is enabled to rotate through the transmission mechanism, the threaded rod is assembled with the threaded pipe in a threaded manner to drive the top plate to be upwards, so that the filter screen frame is upwards taken out, the bolts are screwed in the spiral groove seat to be detached, the mounting ring can be separated from the top plate, the filter screen frame is taken out for cleaning, and smoke dust convenient to clean can be filtered when the circulating water heat exchange is met, and the practicability is improved.
Drawings
FIG. 1 is an axial view of a schematic structural diagram of the present utility model;
FIG. 2 is a left side view of FIG. 1 in accordance with the present utility model;
FIG. 3 is a rear view of FIG. 1 of the present utility model;
fig. 4 is a view showing the internal structure of the transmission case of the present utility model.
The reference numerals in the drawings: 1. a flue gas heat exchange box; 2. a smoke exhaust pipe; 3. a water inlet pipe; 4. a water pump; 5. a water outlet pipe; 6. a spiral heat exchange water pipe; 7. a threaded rod; 8. a threaded tube; 9. a top plate; 10. a smoke inlet pipe; 11. a screw groove seat; 12. a filter screen frame; 13. a mounting ring; 14. a bolt; 15. a transmission case; 16. a first constraint sleeve; 17. a drive link; 18. twisting the disc; 19. bevel gears with small diameters; 20. a second constraint sleeve; 21. a thermal insulation layer; 22. a fixing piece; 23. sealing the contact ring pad; 24. a restraint frame; 25. large diameter bevel gears.
Detailed Description
Examples
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-4, a flue gas waste heat recovery device, including flue gas heat exchange box 1, exhaust pipe 2, inlet tube 3, water pump 4, outlet pipe 5 and spiral heat exchange water pipe 6, flue gas heat exchange box 1 output is linked together with exhaust pipe 2 inner, flue gas heat exchange box 1 one side is connected with inlet tube 3, is provided with water pump 4 on the inlet tube 3, spiral heat exchange water pipe 6 sets up in flue gas heat exchange box 1, inlet tube 3 output is linked together with spiral heat exchange water pipe 6 input, flue gas heat exchange box 1 opposite side is provided with outlet pipe 5, spiral heat exchange water pipe 6 output is linked together with outlet pipe 5 input, still include:
the filter mechanism is used for filtering smoke dust particles in the heat exchange process and comprises a threaded rod 7, a threaded pipe 8, a top plate 9, a smoke inlet pipe 10, a spiral groove seat 11, a filter screen frame 12, a mounting ring 13 and bolts 14, the output end of the transmission mechanism is connected with the bottom end of the threaded rod 7, the outer side of the threaded rod 7 is in threaded connection with the inner side of the threaded pipe 8, the top end of the threaded pipe 8 is connected with the front side of the bottom end of the top plate 9, a group of spiral groove seats 11 are respectively arranged in the left side and the right side of the top plate 9, the mounting ring 13 is fixed in the spiral groove seats 11 through the bolts 14, the bottom end of the mounting ring 13 is connected with the top end of the filter screen frame 12, and the inner side of the top end of the top plate 9 is communicated with the inner end of the smoke inlet pipe 10; when the top plate 9 is covered on the top end of the flue gas heat exchange box 1, the filter screen frame 12 is positioned on the inner side of the flue gas heat exchange box 1, flue gas is fed through the smoke inlet pipe 10, meanwhile, the water pump 4 acts on the water inlet pipe 3 to feed cold water, the water enters the spiral heat exchange water pipe 6 to exchange heat, heated water is discharged through the water outlet pipe 5, the flue gas is filtered by the filter screen frame 12 to be discharged through the smoke outlet pipe 2, when the inside of the filter screen frame 12 is required to be cleaned, the threaded rod 7 is rotated through the transmission mechanism, the threaded rod 7 is screwed with the threaded pipe 8 to drive the top plate 9 to be upwards, the filter screen frame 12 is taken out, the bolts 14 are screwed in the screw groove seat 11, the mounting ring 13 can be separated from the top plate 9, and the filter screen frame 12 is taken out for cleaning, so that the smoke and dust which is convenient to clean can be filtered when the circulating water is required to exchange heat is met, and the practicability is improved.
The transmission mechanism comprises a transmission case 15, a first constraint sleeve 16, a driving connecting rod 17, a twisting disc 18, a small-diameter bevel gear 19, a second constraint sleeve 20 and a large-diameter bevel gear 25, wherein the rear end of the transmission case 15 is connected with the lower side of the front end of the flue gas heat exchange case 1, the first constraint sleeve 16 is arranged in the middle of the front side of the transmission case 15, the driving connecting rod 17 is rotationally constrained in the first constraint sleeve 16, the front side of the driving connecting rod 17 is connected with the middle of the rear side of the large-diameter bevel gear 25, the rear side of the driving connecting rod 17 is connected with the middle of the front side of the twisting disc 18, the middle of the upper side of the transmission case 15 is provided with the second constraint sleeve 20, the lower side of the threaded rod 7 is rotationally constrained in the second constraint sleeve 20, the bottom end of the threaded rod 7 is connected with the middle of the top end of the small-diameter bevel gear 19, and the small-diameter bevel gear 19 is meshed with the large-diameter bevel gear 25; the twisting disc 18 is twisted, the large-diameter bevel gear 25 is driven to rotate by the driving connecting rod 17 under the restraint of the restraint sleeve I16, and the large-diameter bevel gear 25 is meshed with the small-diameter bevel gear 19, so that the small-diameter bevel gear 19 drives the threaded rod 7 to rotate under the restraint of the restraint sleeve II 20, and the expansion transmission effect is achieved.
The flue gas heat exchange box further comprises a heat insulation layer 21, wherein the inner side wall of the flue gas heat exchange box 1 is connected with the outer side of the heat insulation layer 21; the heat insulation layer 21 can insulate heat, so that heat loss of the flue gas in the flue gas heat exchange box 1 is reduced, and the reliability is improved.
The flue gas heat exchange box further comprises fixing plates 22, and two sides of the rear end of the flue gas heat exchange box 1 are respectively connected with the inner ends of one group of the fixing plates 22; the flue gas heat exchange box 1 can be fixed at the corresponding position through the fixing piece 22, so that the stability is improved.
The flue gas heat exchange box further comprises a sealing ring contact pad 23, and the side of the top end ring of the flue gas heat exchange box 1 is connected with the bottom end of the sealing ring contact pad 23; in the closed state of the top plate 9, the sealing ring contact pad 23 performs contact sealing, thereby improving reliability.
The smoke heat exchange box further comprises a restraint frame 24, wherein the upper side of the front end of the smoke heat exchange box 1 is connected with the rear end of the restraint frame 24, and the inner side of the restraint frame 24 is in sliding connection with the outer side of the threaded pipe 8; the movable track of the threaded pipe 8 can be restrained by the restraint frame 24, so that the stability is improved.
In sum, when a flue gas waste heat recovery device is used, when the top plate 9 is covered on the top end of the flue gas heat exchange box 1, the filter screen frame 12 is positioned on the inner side of the flue gas heat exchange box 1, flue gas is fed by the smoke inlet pipe 10, meanwhile, the water pump 4 acts on the water inlet pipe 3 to feed cold water, the water enters the spiral heat exchange water pipe 6 for heat exchange, heated water is discharged by the water outlet pipe 5, the flue gas filters particles through the filter screen frame 12, the flue gas is discharged by the smoke exhaust pipe 2, when the inside of the filter screen frame 12 is required to be cleaned, the screwing disc 18 is screwed, the large-diameter bevel gear 25 is driven to rotate by the driving connecting rod 17 under the restraint of the restraint sleeve I16, the large-diameter bevel gear 25 is meshed with the small-diameter bevel gear 19, the small-diameter bevel gear 19 drives the threaded rod 7 to rotate by the restraint sleeve II 20, the threaded rod 7 is in threaded fit with the threaded pipe 8, and is restrained by the restraint frame 24 in a sliding way, the threaded pipe 8 drives the top plate 9 to be upwards, so that the filter screen frame 12 is upwards taken out, the bolts 14 are screwed out in the spiral groove seat 11, the mounting ring 13 and the top plate 9 are separated, so that the frame 12 is taken out, in a heat insulating layer 21 is required, the heat insulating layer is cleaned, the heat insulating layer 1 is reduced, the heat is dissipated, the reliability of the flue gas is improved, the reliability is the heat exchange box is kept in the heat, and the heat is sealed, and the reliability is kept in the heat, and the heat exchange box is sealed, and the contact and the reliability is kept in the heat, and the heat is sealed, and the state is kept in the state by the heat, and is sealed.
The water pump 4 is a well-known device directly purchased in the market for those skilled in the art, only the water pump is used here, and the structure and the function of the water pump are not improved, and the water pump 4 is provided with a control switch matched with the water pump, the mounting position of the control switch is selected according to the actual use requirement, so that the operation control of an operator is facilitated.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a flue gas waste heat recovery device, including flue gas heat exchange box (1), exhaust pipe (2), inlet tube (3), water pump (4), outlet pipe (5) and spiral heat transfer water pipe (6), flue gas heat exchange box (1) output is linked together with exhaust pipe (2) inner, flue gas heat exchange box (1) one side is connected with inlet tube (3), be provided with water pump (4) on inlet tube (3), spiral heat transfer water pipe (6) set up in flue gas heat exchange box (1), inlet tube (3) output is linked together with spiral heat transfer water pipe (6) input, flue gas heat exchange box (1) opposite side is provided with outlet pipe (5), spiral heat transfer water pipe (6) output is linked together with outlet pipe (5) input, its characterized in that still includes:
the filter mechanism is used for smoke and dust particle filtration in the heat exchange process, the filter mechanism comprises a threaded rod (7), a threaded pipe (8), a top plate (9), a smoke inlet pipe (10), a spiral groove seat (11), a filter screen frame (12), a mounting ring (13) and bolts (14), the output end of the transmission mechanism is connected with the bottom end of the threaded rod (7), the outer side of the threaded rod (7) is connected with the inner side of the threaded pipe (8) in a threaded manner, the top end of the threaded pipe (8) is connected with the front side of the bottom end of the top plate (9), a group of spiral groove seats (11) are respectively arranged in the left side and the right side of the top plate (9), the mounting ring (13) is fixed in the spiral groove seats (11) through bolts (14), the bottom end of the mounting ring (13) is connected with the top end of the filter screen frame (12), and the inner side of the top plate (9) top end is communicated with the inner end of the smoke inlet pipe (10).
2. The flue gas waste heat recovery device according to claim 1, wherein: the transmission mechanism comprises a transmission case (15), a first constraint sleeve (16), a driving connecting rod (17), a twisting disc (18), a small-diameter bevel gear (19), a second constraint sleeve (20) and a large-diameter bevel gear (25), wherein the rear end of the transmission case (15) is connected with the lower side of the front end of the flue gas heat exchange case (1), the middle part of the front side of the transmission case (15) is provided with the first constraint sleeve (16), the driving connecting rod (17) is rotationally constrained in the first constraint sleeve (16), the front side of the driving connecting rod (17) is connected with the middle part of the rear side of the large-diameter bevel gear (25), the rear side of the driving connecting rod (17) is connected with the middle part of the front side of the twisting disc (18), the middle part of the upper side of the transmission case (15) is provided with the second constraint sleeve (20), the lower side of the threaded rod (7) is rotationally constrained in the second constraint sleeve (20), the bottom end of the threaded rod (7) is connected with the middle part of the top of the small-diameter bevel gear (19), and the small-diameter bevel gear (19) is meshed with the large-diameter bevel gear (25).
3. The flue gas waste heat recovery device according to claim 1, wherein: the flue gas heat exchange box further comprises a heat insulation layer (21), and the inner side wall of the flue gas heat exchange box (1) is connected with the outer side of the heat insulation layer (21).
4. The flue gas waste heat recovery device according to claim 1, wherein: the flue gas heat exchange box also comprises fixing pieces (22), and two sides of the rear end of the flue gas heat exchange box (1) are respectively connected with the inner ends of a group of fixing pieces (22).
5. The flue gas waste heat recovery device according to claim 1, wherein: the flue gas heat exchange box further comprises a sealing ring contact pad (23), and the top end ring side of the flue gas heat exchange box (1) is connected with the bottom end of the sealing ring contact pad (23).
6. The flue gas waste heat recovery device according to claim 1, wherein: the flue gas heat exchange box further comprises a constraint frame (24), wherein the upper side of the front end of the flue gas heat exchange box (1) is connected with the rear end of the constraint frame (24), and the inner side of the constraint frame (24) is in sliding connection with the outer side of the threaded pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321894074.5U CN220489193U (en) | 2023-07-18 | 2023-07-18 | Flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321894074.5U CN220489193U (en) | 2023-07-18 | 2023-07-18 | Flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220489193U true CN220489193U (en) | 2024-02-13 |
Family
ID=89833191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321894074.5U Active CN220489193U (en) | 2023-07-18 | 2023-07-18 | Flue gas waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220489193U (en) |
-
2023
- 2023-07-18 CN CN202321894074.5U patent/CN220489193U/en active Active
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