CN219454796U - Waste heat recovery device of boiler - Google Patents
Waste heat recovery device of boiler Download PDFInfo
- Publication number
- CN219454796U CN219454796U CN202223120875.4U CN202223120875U CN219454796U CN 219454796 U CN219454796 U CN 219454796U CN 202223120875 U CN202223120875 U CN 202223120875U CN 219454796 U CN219454796 U CN 219454796U
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- Prior art keywords
- heat recovery
- waste heat
- wall
- thick bamboo
- recovery device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model relates to the technical field of waste heat recovery, and discloses a waste heat recovery device of a boiler. This waste heat recovery device of boiler, the flue gas is along the waste heat recovery section of thick bamboo bottom contact of blocking the blade when upwards flowing the discharge, it rotates to promote to block the blade through the ascending thrust of flue gas, it rotates to block the blade drive location axle, the location axle drives the inner wall of arc scraper blade to waste heat recovery section of thick bamboo and scrapes, thereby clear up waste heat recovery section of thick bamboo inner wall voluntarily, prevent that the smoke and dust adhesion from influencing waste heat recovery section of thick bamboo inner wall and to thermal absorption recovery efficiency at waste heat recovery section of thick bamboo inner wall, cold water is along the downflow of heat absorption hole, waste heat recovery section of thick bamboo inner wall absorbs the heat in the flue gas, the heat of discharge flue gas has been reduced, the waste of energy has been reduced in the inside aquatic of absorption flue gas heat transfer to the heat absorption hole, the heating efficiency of boiler has been improved.
Description
Technical Field
The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery device of a boiler.
Background
When the boiler heats raw materials of burning to water in the course of the work, the flue gas that the burning produced is discharged through the chimney, and exhaust flue gas temperature is higher, leads to the heat extravagant, and ordinary flue gas heat recovery unit is when carrying out the work, and the heat absorption surface adsorbs the dust in the adhesion flue gas easily, leads to the heat absorption capacity on heat absorption surface to reduce, influences heat recovery's efficiency.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a waste heat recovery device of a boiler, which solves the problems that the heat of boiler smoke is wasted, and the adhesion between smoke dust in discharged smoke and a heat absorption surface influences the heat recovery efficiency.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a waste heat recovery device of boiler, includes the end barrel, fixed flange is installed to the bottom outer wall of end barrel, waste heat recovery section of thick bamboo is installed through the flange to the top of end barrel, the locating support is installed to the inner wall of end barrel and the position that is located near the top, the locating pile is installed to the one end that the locating support is far away from end barrel, the locating shaft is installed through the bearing rotation in the top of locating pile, the top outer wall of locating shaft installs the barrier blade, the inside insulating chamber that has seted up of lateral wall of waste heat recovery section of thick bamboo, the outside water cavity has been seted up to the inside position that is located the insulating chamber outside of end barrel, the outside water pipeline is installed to the position that is close to the outside water cavity bottom, and the inside intercommunication of outside water pipeline and outside water cavity, the inside and the position that is located the insulating chamber inboard have seted up the heat absorption hole of waste heat recovery section of thick bamboo, the intercommunication opening has been seted up between the top of outside water cavity and the top of heat absorption hole, the inside and the position that is located the intercommunication opening outside installs communicating pipe, intercommunication opening and the bottom of water pipe and heat recovery section of thick bamboo are just to the bottom surface of thick bamboo and drain pipe, the bottom surface intercommunication drain pipe is located the bottom of the end of barrel.
Preferably, the blocking blade is spiral, an arc scraping plate is arranged on the outer wall of the positioning shaft and positioned in the waste heat recovery cylinder, and the outer end of the arc scraping plate is contacted with the inner wall of the waste heat recovery cylinder.
Preferably, the top of the blocking blade is provided with a groove from inside to outside, and the outer end of the blocking blade is lower than the middle end.
Preferably, the inside of the heat insulation cavity is vacuum.
Preferably, the positioning pile is conical.
Preferably, the inner diameter of the waste heat recovery cylinder is larger than the inner diameter of the bottom end of the bottom cylinder.
Compared with the prior art, the utility model provides a waste heat recovery device of a boiler, which has the following beneficial effects:
1. this waste heat recovery device of boiler, flue gas along waste heat recovery section of thick bamboo inside upwards flow the bottom contact of stopping the blade when discharging, promote through the ascending thrust of flue gas and stop the blade and rotate, stop that the blade drives the locating shaft and rotate, the locating shaft drives the inner wall of arc scraper blade to waste heat recovery section of thick bamboo and scrape to clear up waste heat recovery section of thick bamboo inner wall voluntarily, prevent that smoke and dust adhesion from influencing waste heat recovery section of thick bamboo inner wall to thermal absorption recovery efficiency at waste heat recovery section of thick bamboo inner wall.
2. This waste heat recovery device of boiler, cold water pours into to the outer water cavity inside through the water adding pipeline, the cooling is followed outer water cavity inside and is upwards flowed, heat that the heat recovery section of thick bamboo leaned on the outside is absorbed through outer water cavity inside cold water and is heated, then cold water flows into the inside heat absorption hole of inboard through intercommunication opening and communicating pipe, cold water flows down along the heat absorption hole inside, heat in the flue gas is absorbed to waste heat recovery section of thick bamboo inner wall, the heat of exhaust flue gas has been reduced, the heat transfer of absorbing flue gas is to the inside aquatic in heat absorption hole, thereby the waste of energy has been reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a cross-sectional structure of the present utility model with the arcuate screed removed;
FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present utility model;
fig. 4 is an enlarged view of the structure of fig. 2B according to the present utility model.
Wherein: 1. a bottom cylinder; 2. a fixed flange; 3. a waste heat recovery cylinder; 4. a connecting flange plate; 5. positioning piles; 6. positioning a shaft; 7. blocking the blade; 8. a thermal insulation chamber; 9. an outer water chamber; 10. a water supply pipeline; 11. a heat absorbing hole; 12. a drain hole; 13. a drain pipe; 14. a communication opening; 15. a communicating pipe; 16. and (5) positioning the bracket.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model provides a waste heat recovery device of a boiler, which comprises a bottom cylinder body 1, wherein a fixed flange 2 is arranged on the outer wall of the bottom end of the bottom cylinder body 1, a waste heat recovery cylinder 3 is arranged at the top end of the bottom cylinder body 1 through a connecting flange 4, the length of the waste heat recovery cylinder 3 is not in actual length proportion, the inner wall of the waste heat recovery cylinder 3 is contacted with flue gas to absorb heat, a positioning bracket 16 is arranged on the inner wall of the bottom cylinder body 1 and is positioned near the top, a positioning pile 5 is arranged at one end of the positioning bracket 16 far away from the bottom cylinder body 1, a positioning shaft 6 is rotatably arranged at the top of the positioning pile 5 through a bearing, a blocking blade 7 is arranged on the outer wall of the top end of the positioning shaft 6, a heat insulation cavity 8 is arranged in the side wall of the waste heat recovery cylinder 3, an outer water cavity 9 is arranged in the waste heat recovery cylinder 3 and is positioned outside the heat insulation cavity 8, a water adding pipeline 10 is arranged on the outer wall of the waste heat recovery cylinder 3 and positioned near the bottom of the outer water cavity 9, the water adding pipeline 10 is communicated with the inside of the outer water cavity 9, a heat absorbing hole 11 is arranged in the waste heat recovery cylinder 3 and positioned at the inner side of the heat insulating cavity 8, a communication opening 14 is arranged between the top of the outer water cavity 9 and the top of the heat absorbing hole 11, a communicating pipe 15 is arranged in the heat insulating cavity 8 and positioned at the outer side of the communication opening 14, the top of the outer water cavity 9 is communicated with the top of the heat absorbing hole 11 by the communication opening 14 and the communicating pipe 15, a water draining hole 12 is arranged at the bottom of the waste heat recovery cylinder 3 and positioned at the position opposite to the bottom end of the heat absorbing hole 11, a water draining pipe 13 is arranged on the surface of the bottom cylinder 1, the water draining hole 12 penetrates through the bottom cylinder 1 and is communicated with the top of the water draining pipe 13, cold water is injected into the inner part of the outer water cavity 9 through the water adding pipeline 10, and the cold water flows upwards along the inner part of the outer water cavity 9, the heat of the waste heat recovery cylinder 3 near the outer side is absorbed and heated through the cold water in the outer water cavity 9, then the cold water flows into the inner side heat absorption hole 11 through the communication opening 14 and the communication pipe 15, the cold water flows downwards along the inner side of the heat absorption hole 11, the heat in the smoke is absorbed by the inner wall of the waste heat recovery cylinder 3, the heat of the discharged smoke is reduced, and the absorbed smoke heat is transferred into the water in the heat absorption hole 11, so that the energy waste is reduced.
Further, block blade 7 for heliciform, the outer wall of location axle 6 and be located the inside position of waste heat recovery section of thick bamboo 3 and install the arc scraper blade, the outer end that leans on of arc scraper blade and waste heat recovery section of thick bamboo 3 inner wall contact, the flue gas is along waste heat recovery section of thick bamboo 3 bottom contact of blocking blade 7 when upwards flowing the discharge, it rotates to promote to block blade 7 through the ascending thrust of flue gas, it rotates to block blade 7 drive location axle 6, location axle 6 drives the arc scraper blade and scrapes the inner wall of waste heat recovery section of thick bamboo 3, thereby clear up waste heat recovery section of thick bamboo 3 inner wall automatically, prevent that the smoke and dust adhesion from influencing waste heat recovery section of thick bamboo 3 inner wall to thermal absorption recovery efficiency at waste heat recovery section of thick bamboo 3 inner wall, and arc scraper blade rotates and can promote the flue gas outside, flue gas and waste heat recovery section of thick bamboo 3 inner wall contact and carry out the effect of heat transfer have been improved.
Further, the top of the blocking blade 7 is provided with a groove from inside to outside, the outer end of the blocking blade 7 is lower than the height of the middle end, and during raining, rainwater flows outwards along the top of the blocking blade 7, so that the rainwater is prevented from falling into the waste heat recovery cylinder 3.
Further, the vacuum is arranged in the heat insulation cavity 8, so that the heat insulation effect of the waste heat recovery cylinder 3 is improved.
Further, the positioning pile 5 is conical, and the flue gas is outwards diffused under the blocking of the positioning pile 5 when flowing upwards, so that the contact effect of the flue gas and the inner wall of the waste heat recovery cylinder 3 is improved.
Further, the inner diameter of the waste heat recovery cylinder 3 is larger than that of the bottom end of the bottom cylinder body 1, and the heat absorption area is increased and the heat recovery efficiency is improved by enlarging the flow inner diameter of the flue gas.
When in use, the bottom cylinder body 1 is connected with the top of the chimney through the fixed flange plate 2, the flue gas flows upwards along the inside of the bottom cylinder body 1, the flue gas is diffused outwards under the blocking of the positioning pile 5 and enters the inside of the waste heat recovery cylinder 3 when flowing upwards, the flue gas contacts with the bottom of the blocking blade 7 when flowing upwards and discharging along the inside of the waste heat recovery cylinder 3, the blocking blade 7 is pushed to rotate by the upward pushing force of the flue gas, the blocking blade 7 drives the positioning shaft 6 to rotate, the positioning shaft 6 drives the arc scraping plate to scrape the inner wall of the waste heat recovery cylinder 3, thereby automatically cleaning the inner wall of the waste heat recovery cylinder 3, preventing the smoke adhesion from affecting the heat absorption and recovery efficiency of the inner wall of the waste heat recovery cylinder 3 on the inner wall of the waste heat recovery cylinder 3, the arc scraping plate rotates to push the flue gas outwards, the effect of the contact of the flue gas and the inner wall of the waste heat recovery cylinder 3 is improved, the heat is absorbed through the inner wall of the waste heat recovery cylinder 3, meanwhile, cold water is injected into the outer water cavity 9 through the water adding pipeline 10, the cold water flows upwards along the inner portion of the outer water cavity 9, the waste heat recovery cylinder 3 is heated by absorbing the heat outside through the cold water in the outer water cavity 9, then the cold water flows into the inner heat absorbing hole 11 through the communication opening 14 and the communication pipe 15, the cold water flows downwards along the inner portion of the heat absorbing hole 11, the inner wall of the waste heat recovery cylinder 3 absorbs the heat in the smoke, the heat of the smoke is discharged, the absorbed smoke heat is transferred into the water in the inner portion of the heat absorbing hole 11, the water preheated by the heat absorbed by the waste heat recovery cylinder 3 is added into the boiler, so that the initial temperature of the water added into the boiler is improved, the heat loss is reduced, and the heating efficiency of the boiler is improved.
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. Waste heat recovery device of boiler, including end barrel (1), its characterized in that: the utility model discloses a waste heat recovery device, including a bottom barrel (1), a fixing flange (2) is installed to the bottom outer wall of bottom barrel (1), waste heat recovery tube (3) is installed through flange (4) in the top of bottom barrel (1), locating support (16) are installed to the inner wall of bottom barrel (1) and are located the position near the top, locating pile (5) are installed to one end that locating support (16) kept away from bottom barrel (1), locating shaft (6) are installed through the bearing rotation in the top of locating pile (5), block blade (7) are installed to the top outer wall of locating shaft (6), insulating cavity (8) have been seted up to the inside of lateral wall of waste heat recovery tube (3), outer water cavity (9) have been seted up in the inside of waste heat recovery tube (3) and are located the position in the outside of insulating cavity (8), heating pipeline (10) are installed in the position near the bottom of outer water cavity (9) and are located the inside intercommunication, waste heat recovery tube (3) is inside and is located the position of insulating cavity (8), opening (11) are seted up between heat absorption hole (11) and top opening (11), the heat insulation cavity (8) is internally provided with a communicating pipe (15) at the position outside the communicating opening (14), the communicating opening (14) and the communicating pipe (15) are used for communicating the top of the outer water cavity (9) with the top of the heat absorption hole (11), the bottom of the waste heat recovery cylinder (3) is provided with a drain hole (12) at the position right opposite to the bottom end of the heat absorption hole (11), the surface of the bottom cylinder body (1) is provided with a drain pipe (13), and the drain hole (12) penetrates through the bottom cylinder body (1) and is communicated with the top end of the drain pipe (13).
2. The waste heat recovery device of a boiler according to claim 1, wherein: the blocking blades (7) are spiral, arc-shaped scraping plates are arranged on the outer wall of the positioning shaft (6) and located in the waste heat recovery cylinder (3), and the outer ends of the arc-shaped scraping plates are in contact with the inner wall of the waste heat recovery cylinder (3).
3. The waste heat recovery device of a boiler according to claim 1, wherein: the top of the blocking blade (7) is provided with a groove from inside to outside, and the outer end of the blocking blade (7) is lower than the middle end.
4. The waste heat recovery device of a boiler according to claim 1, wherein: the interior of the heat insulation cavity (8) is vacuum.
5. The waste heat recovery device of a boiler according to claim 1, wherein: the positioning pile (5) is conical.
6. The waste heat recovery device of a boiler according to claim 1, wherein: the inner diameter of the waste heat recovery cylinder (3) is larger than that of the bottom end of the bottom cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223120875.4U CN219454796U (en) | 2022-11-17 | 2022-11-17 | Waste heat recovery device of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223120875.4U CN219454796U (en) | 2022-11-17 | 2022-11-17 | Waste heat recovery device of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219454796U true CN219454796U (en) | 2023-08-01 |
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ID=87387456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223120875.4U Active CN219454796U (en) | 2022-11-17 | 2022-11-17 | Waste heat recovery device of boiler |
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| Country | Link |
|---|---|
| CN (1) | CN219454796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117702250A (en) * | 2023-11-16 | 2024-03-15 | 连城凯克斯科技有限公司 | Pressure release adjusting equipment for single crystal furnace |
-
2022
- 2022-11-17 CN CN202223120875.4U patent/CN219454796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117702250A (en) * | 2023-11-16 | 2024-03-15 | 连城凯克斯科技有限公司 | Pressure release adjusting equipment for single crystal furnace |
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