CN212362078U - Power plant's boiler flue gas waste heat recovery device - Google Patents
Power plant's boiler flue gas waste heat recovery device Download PDFInfo
- Publication number
- CN212362078U CN212362078U CN202020532771.6U CN202020532771U CN212362078U CN 212362078 U CN212362078 U CN 212362078U CN 202020532771 U CN202020532771 U CN 202020532771U CN 212362078 U CN212362078 U CN 212362078U
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- Prior art keywords
- flue gas
- case
- tank
- pipe
- gas case
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 227
- 239000003546 flue gas Substances 0.000 title claims abstract description 227
- 238000011084 recovery Methods 0.000 title claims abstract description 37
- 239000002918 waste heat Substances 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000007789 gas Substances 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 claims 7
- 238000011069 regeneration method Methods 0.000 claims 7
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001172 regenerating effect Effects 0.000 description 17
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a power boiler flue gas waste heat recovery device, including first flue gas case, backheat water tank, second flue gas case and backheat gas case, the backheat water tank sets up the top at first flue gas case, the backheat gas case sets up the top at the second flue gas case, all be provided with the heat pipe between first flue gas case and the backheat water tank and between second flue gas case and the backheat gas case, the bottom of first flue gas case and second flue gas case all is provided with flue gas case blow off pipe, the surface lower extreme of first flue gas case is provided with first flue gas intake pipe. The utility model discloses a set up first flue gas case, backheat water tank, second flue gas case, backheat gas case, three first flue gas intake pipe and three first flue gas outlet duct, cold water waste heat recovery and cold air waste heat recovery combine together for heat in the boiler flue gas can be thoroughly retrieved, and can fully contact with the heat pipe at recovery in-process flue gas, and the recovery effect obtains improving greatly.
Description
Technical Field
The utility model relates to a waste heat recovery technical field specifically is a power boiler flue gas waste heat recovery device.
Background
The flue gas is the main way of wasting energy of general energy consumption equipment, for example the boiler is discharged fume and is consumed energy about 15%, and other equipment such as forming machine, drying-machine and kiln of printing and dyeing industry mainly consume energy all through smoke emission, flue gas waste heat recovery mainly converts the heat that the flue gas carried into can the heat that utilizes through certain heat transfer mode, because the energy shortage, further develop along with energy-conserving work, it becomes more important to retrieve the flue gas waste heat, but current power plant boiler flue gas waste heat recovery device heat pipe and flue gas contact inadequately abundant, heat recovery is thorough inadequately, heat waste is more serious, therefore it is necessary to improve prior art, in order to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
An object of the utility model is to provide a power boiler flue gas waste heat recovery device to the current power boiler flue gas waste heat recovery device heat pipe that provides in solving above-mentioned background art is not enough abundant with the flue gas contact, and heat recovery is thorough inadequately, the more serious problem of heat waste.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a power plant boiler flue gas waste heat recovery device comprises a first flue gas tank, a regenerative water tank, a second flue gas tank and a regenerative gas tank, wherein the regenerative water tank is arranged above the first flue gas tank, the regenerative gas tank is arranged above the second flue gas tank, heat pipes are arranged between the first flue gas tank and the regenerative water tank and between the second flue gas tank and the regenerative gas tank, flue gas tank blow-off pipes are arranged at the bottoms of the first flue gas tank and the second flue gas tank, a first flue gas inlet pipe is arranged at the lower end of the surface of the first flue gas tank, a first flue gas outlet pipe is arranged at the upper end of the surface of the first flue gas tank, a cold water inlet pipe is arranged at the lower end of one side of the regenerative water tank, a hot water outlet pipe is arranged at the upper end of the other side of the regenerative water tank, a water tank blow-off pipe is arranged at the lower end of the other side of the regenerative water tank, a flue gas inlet cover is arranged at one side of the second flue gas tank, the flue gas is provided with second flue gas intake pipe on the gas inlet cover, pass through the pipe connection between second flue gas intake pipe and the first flue gas outlet duct, the opposite side of second flue gas case is provided with the flue gas and goes out the gas hood, the flue gas is given vent to anger and is provided with second flue gas outlet duct on covering, one side of backheating gas case sets up cold air inlet cover, the cold air is provided with the cold air intake pipe on the air inlet cover, the opposite side of backheating gas case sets up hot air and goes out the gas hood, the hot air is given vent to anger and is provided with the hot air outlet duct on the cover.
Preferably, first flue gas case, backheat water tank, second flue gas case and backheat the gas case and all set up to cylindric, just heat pipe between first flue gas case and the backheat water tank and between second flue gas case and the backheat gas case all is provided with a plurality of, a plurality of the heat pipe is the even setting of dot matrix form.
Preferably, the extension line of the first flue gas inlet pipe is tangent to the side face of the first flue gas box, the number of the first flue gas inlet pipes is three, and the number of the first flue gas inlet pipes is three.
Preferably, the extension line of first flue gas outlet duct is tangent with the side of first flue gas case, first flue gas outlet duct is provided with threely, three first flue gas outlet duct evenly sets up around the surface of first flue gas case along the circumference.
Preferably, the airflow direction in the second flue gas box and the airflow direction in the back heating air box are opposite.
Preferably, the flue gas inlet hood, the flue gas outlet hood, the cold air inlet hood and the hot air outlet hood are all internally provided with air equalizing plates.
Preferably, the second flue gas case is provided with threely, three the second flue gas case evenly sets up around first flue gas case along the circumference, first flue gas case is fixed on first brace table, the second flue gas case is fixed on second brace table, first brace table and second brace table are all fixed on the bottom plate.
(III) advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a set up backheat water tank and backheat gas tank, cold water waste heat recovery and cold air waste heat recovery combine together for heat in the boiler flue gas can be thoroughly retrieved, and the heat obtains rational utilization, reduction in production cost.
(2) The utility model discloses a set up three first flue gas intake pipe and three first flue gas outlet duct for the boiler flue gas gets into more even to first flue gas incasement, and the flue gas is at first flue gas incasement internal rotation spiral rising, and the contact of flue gas and heat pipe is more complete, so waste heat recovery effect is better.
(3) The utility model discloses a set up three second flue gas case and three backheat gas case, the flue gas can carry out the two-stage section and backheat, and the flue gas is divided into the triplex, by the equal aerofoil dispersion back of flue gas, can contact completely with the heat pipe of second flue gas incasement.
Drawings
FIG. 1 is a front sectional view of the present invention;
FIG. 2 is an enlarged view of the connection structure between the second flue gas box and the heat recovery gas box in FIG. 1 according to the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
fig. 4 is a cross-sectional view taken along line B-B of fig. 1 according to the present invention.
The reference numbers in the figures are: 1. a first flue gas box; 2. a heat regenerative water tank; 3. a heat pipe; 4. a first flue gas inlet pipe; 5. a blow-off pipe of the flue gas tank; 6. a first flue gas outlet pipe; 7. a cold water inlet pipe; 8. a hot water outlet pipe; 9. a blow-off pipe of the water tank; 10. a second flue gas box; 11. a heat recovery air box; 12. a second flue gas inlet pipe; 13. a flue gas inlet hood; 14. a flue gas outlet cover; 15. a second flue gas outlet pipe; 16. a cool air inlet hood; 17. a cold air inlet pipe; 18. a hot air outlet pipe; 19. a hot air outlet cover; 20. a wind equalizing plate; 21. a first support table; 22. a base plate; 23. a second support table.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: a power plant boiler flue gas waste heat recovery device comprises a first flue gas tank 1, a heat recovery water tank 2, a second flue gas tank 10 and a heat recovery gas tank 11, wherein the heat recovery water tank 2 is arranged above the first flue gas tank 1, the heat recovery gas tank 11 is arranged above the second flue gas tank 10, heat pipes 3 are respectively arranged between the first flue gas tank 1 and the heat recovery water tank 2 and between the second flue gas tank 10 and the heat recovery gas tank 11, flue gas tank blow-off pipes 5 are respectively arranged at the bottoms of the first flue gas tank 1 and the second flue gas tank 10, when the flue gas tank is used for a long time, impurities are generated between flue gas and the heat pipes 3 and are discharged from the flue gas tank blow-off pipes 5, the first flue gas 4 is arranged at the lower end of the surface of the first flue gas tank 1, a first flue gas outlet pipe 6 is arranged at the upper end of the surface of the first flue gas tank 1, a cold water inlet pipe 7 is arranged at the lower end of one side of the heat recovery water tank 2, and a hot water outlet pipe 8 is arranged at the, the lower end of the other side of the regenerative water tank 2 is provided with a water tank blow-off pipe 9, one side of the second flue gas tank 10 is provided with a flue gas inlet hood 13, a second flue gas inlet pipe 12 is arranged on the flue gas inlet hood 13, the second flue gas inlet pipe 12 is connected with the first flue gas outlet pipe 6 through a pipeline, the other side of the second flue gas tank 10 is provided with a flue gas outlet hood 14, a second flue gas outlet pipe 15 is arranged on the flue gas outlet hood 14, one side of the regenerative water tank 11 is provided with a cold air inlet hood 16, a cold air inlet pipe 17 is arranged on the cold air inlet hood 16, the other side of the regenerative water tank 11 is provided with a hot air outlet hood 19, a hot air outlet pipe 18 is arranged on the hot air outlet hood 19, and the flue gas inlet hood 13, the flue gas outlet hood 14, the cold air inlet hood 16 and the hot air outlet hood 19 are all set to.
First flue gas case 1, backheat water tank 2, second flue gas case 10 and backheat gas case 11 all set up to cylindric, and first flue gas case 1 and backheat between the water tank 2 and second flue gas case 10 and backheat heat pipe 3 between the gas tank 11 all are provided with a plurality of, and a plurality of heat pipe 3 is the even setting of dot matrix form, and the setting up of a plurality of heat pipe 3 makes heat pipe 3 can fully contact with the flue gas, improves backheat efficiency.
The extension line of first flue gas intake pipe 4 is tangent with the side of first flue gas case 1, and first flue gas intake pipe 4 is provided with threely, and three first flue gas intake pipe 4 evenly sets up around the surface of first flue gas case 1 along the circumference, and when the flue gas entered from first flue gas intake pipe 4, along the inner wall spiral rising of first flue gas case 1 to the contact time of extension heat pipe 3 and flue gas, the event improves heat pipe 3's backheat effect.
Extension line of first flue gas outlet duct 6 is tangent with the side of first flue gas case 1, and first flue gas outlet duct 6 is provided with threely, and three first flue gas outlet duct 6 evenly sets up around the surface of first flue gas case 1 along the circumference.
The flow direction in the second flue gas box 10 and the back-heating air box 11 is opposite, so that the cool air in the back-heating air box 11 can be fully contacted with the heat pipes 3.
The flue gas inlet hood 13, the flue gas outlet hood 14, the cold air inlet hood 16 and the hot air outlet hood 19 are all internally provided with air-equalizing plates 20, and the air-equalizing plates 20 can thoroughly disperse flue gas and air, so that the flue gas and the air can be more thoroughly contacted with the heat pipe 3.
Second flue gas case 10 is provided with threely, three second flue gas case 10 evenly sets up around first flue gas case 1 along the circumference, first flue gas case 1 is fixed on first supporting bench 21, second flue gas case 10 is fixed on second supporting bench 23, first supporting bench 21 and second supporting bench 23 are all fixed on bottom plate 22, through setting up first supporting bench 21, bottom plate 22 and second supporting bench 23, make first flue gas case 1, backheat water tank 2, second flue gas case 10 and backheat gas case 11 become a whole, the management of being convenient for is maintained.
The working principle is as follows: high-temperature boiler flue gas enters the first flue gas tank 1 from the first flue gas inlet pipe 4, cold water enters the regenerative water tank 2 from the cold water inlet pipe 7, the high-temperature boiler flue gas rotates and spirally rises in the first flue gas tank 1, the heat pipe 3 in the first flue gas box 1 is fully contacted, the heat in the flue gas is transferred to the cold water in the regenerative water tank 2 by the heat pipe 3, the cold water in the regenerative water tank 2 is discharged from the hot water outlet pipe 8 after being heated, the flue gas is discharged from the first flue gas outlet pipe 6, enters the second flue gas box 10 from the second flue gas inlet pipe 12 through a pipeline, the cold air enters the regenerative air box 11 from the cold air inlet pipe 17, the flue gas in the second flue gas box 10 is fully contacted with the heat pipe 3, the heat in the flue gas is transferred to the cold air in the back-heating air box 11 by the heat pipes 3, the heated air is discharged from the hot air outlet pipe 18, and the flue gas with the heat recovery completed is discharged out of the second flue gas box 10 through the second flue gas outlet pipe 15.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a power boiler flue gas waste heat recovery device, includes first flue gas case (1), backheat water tank (2), second flue gas case (10) and backheat gas case (11), its characterized in that: the device is characterized in that the heat regeneration water tank (2) is arranged above the first flue gas tank (1), the heat regeneration air tank (11) is arranged above the second flue gas tank (10), heat pipes (3) are arranged between the first flue gas tank (1) and the heat regeneration water tank (2) and between the second flue gas tank (10) and the heat regeneration air tank (11), flue gas tank blow-off pipes (5) are arranged at the bottoms of the first flue gas tank (1) and the second flue gas tank (10), a first flue gas inlet pipe (4) is arranged at the lower end of the surface of the first flue gas tank (1), a first flue gas outlet pipe (6) is arranged at the upper end of the surface of the first flue gas tank (1), a cold water inlet pipe (7) is arranged at the lower end of one side of the heat regeneration water tank (2), a hot water outlet pipe (8) is arranged at the upper end of the other side of the heat regeneration water tank (2), and a blow-off pipe (9) is arranged at the lower end of the other side of the heat regeneration water tank (, one side of second flue gas case (10) is provided with flue gas inlet hood (13), be provided with second flue gas inlet pipe (12) on flue gas inlet hood (13), pass through the pipe connection between second flue gas inlet pipe (12) and first flue gas outlet duct (6), the opposite side of second flue gas case (10) is provided with flue gas outlet hood (14), be provided with second flue gas outlet duct (15) on flue gas outlet hood (14), one side of backheating gas case (11) is provided with cold air inlet hood (16), be provided with cold air intake pipe (17) on cold air inlet hood (16), the opposite side of backheating gas case (11) is provided with hot air outlet hood (19), be provided with hot air outlet duct (18) on hot air outlet hood (19).
2. The power plant boiler flue gas waste heat recovery device of claim 1, characterized in that: first flue gas case (1), backheat water tank (2), second flue gas case (10) and backheat air tank (11) all set up to cylindric, just heat pipe (3) between first flue gas case (1) and backheat water tank (2) and between second flue gas case (10) and backheat air tank (11) all are provided with a plurality of, a plurality of heat pipe (3) are the even setting of dot matrix form.
3. The power plant boiler flue gas waste heat recovery device of claim 1, characterized in that: the extension line of first flue gas intake pipe (4) is tangent with the side of first flue gas case (1), first flue gas intake pipe (4) are provided with threely, and are three first flue gas intake pipe (4) evenly set up around the surface of first flue gas case (1) along the circumference.
4. The power plant boiler flue gas waste heat recovery device of claim 1, characterized in that: the extension line of first flue gas outlet duct (6) is tangent with the side of first flue gas case (1), first flue gas outlet duct (6) are provided with threely, and are three first flue gas outlet duct (6) evenly set up around the surface of first flue gas case (1) along the circumference.
5. The power plant boiler flue gas waste heat recovery device of claim 1, characterized in that: the direction of the air flow in the second flue gas box (10) is opposite to that in the back heating air box (11).
6. The power plant boiler flue gas waste heat recovery device of claim 1, characterized in that: and air equalizing plates (20) are arranged in the flue gas inlet hood (13), the flue gas outlet hood (14), the cold air inlet hood (16) and the hot air outlet hood (19).
7. The power plant boiler flue gas waste heat recovery device of claim 1, characterized in that: second flue gas case (10) are provided with threely, three second flue gas case (10) evenly set up around first flue gas case (1) along the circumference, first flue gas case (1) is fixed on first supporting bench (21), second flue gas case (10) are fixed on second brace table (23), first brace table (21) and second brace table (23) are all fixed on bottom plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020532771.6U CN212362078U (en) | 2020-04-13 | 2020-04-13 | Power plant's boiler flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020532771.6U CN212362078U (en) | 2020-04-13 | 2020-04-13 | Power plant's boiler flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212362078U true CN212362078U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020532771.6U Expired - Fee Related CN212362078U (en) | 2020-04-13 | 2020-04-13 | Power plant's boiler flue gas waste heat recovery device |
Country Status (1)
| Country | Link |
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| CN (1) | CN212362078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217932A (en) * | 2021-04-01 | 2021-08-06 | 青海湘和有色金属有限责任公司 | Boiler waste heat recycling mechanism and using method thereof |
-
2020
- 2020-04-13 CN CN202020532771.6U patent/CN212362078U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217932A (en) * | 2021-04-01 | 2021-08-06 | 青海湘和有色金属有限责任公司 | Boiler waste heat recycling mechanism and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 |