CN219674191U - Comprehensive utilization device for flue gas waste heat of gas boiler - Google Patents
Comprehensive utilization device for flue gas waste heat of gas boiler Download PDFInfo
- Publication number
- CN219674191U CN219674191U CN202222862719.9U CN202222862719U CN219674191U CN 219674191 U CN219674191 U CN 219674191U CN 202222862719 U CN202222862719 U CN 202222862719U CN 219674191 U CN219674191 U CN 219674191U
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- Prior art keywords
- valve
- heat exchanger
- pipeline
- fixedly connected
- heat
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- 239000002918 waste heat Substances 0.000 title claims abstract description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000003546 flue gas Substances 0.000 title claims abstract description 23
- 239000007789 gas Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 15
- 238000004321 preservation Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 abstract description 6
- 238000009833 condensation Methods 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model relates to the technical field of flue gas waste heat utilization, in particular to a comprehensive utilization device of flue gas waste heat of a gas boiler, which comprises: the heat exchanger comprises a heat exchanger main body, a heat exchanger inlet valve is fixedly connected to the left side of the heat exchanger main body through a pipeline, an emptying valve is fixedly connected to the left side of the heat exchanger inlet valve through a pipeline, a regulating valve is fixedly connected to the left side of the emptying valve through a pipeline, a water supply pump is fixedly connected to the left side of the regulating valve through a pipeline, a booster pump inlet valve is fixedly connected to the left side of the water supply pump through a pipeline, a flowmeter is fixedly connected to the left side of the booster pump inlet valve through a pipeline, and a partition valve is fixedly connected to the left side of the flowmeter through a pipeline. According to the waste heat utilization device, after the condensation water is pressurized, the condensation water is sent into the heat exchanger main body to exchange heat with the flue gas, and hot water after heat exchange is sent into the deaerator again, so that the purposes of reducing the exhaust gas temperature and improving the heat efficiency of the boiler are achieved.
Description
Technical Field
The utility model relates to the technical field of flue gas waste heat utilization, in particular to a comprehensive utilization device for flue gas waste heat of a gas boiler.
Background
The boiler is a large main device for production operation of a thermal power generation enterprise, and generates higher temperature in the operation smoke discharging process of the boiler, the higher temperature is often accompanied by huge energy loss, and the problem is often ignored by most manufacturers, so that a large amount of energy is lost in the operation of the boiler, which is not only unfavorable for the economic benefit of the enterprise, but also brings adverse social influence to the violation of the national advocated resource-saving and environment-friendly society.
For this, chinese application number: CN202023127745.4 discloses a flue gas waste heat recovery device of a gas boiler, which comprises a housin, the bottom fixed mounting of casing has the mounting panel, the heat insulating board is installed in the outside of casing, two outer end interfaces are installed to the bilateral symmetry of heat insulating board, the top of casing is provided with the spread groove, the inside of casing is provided with the cavity, the inside central point department of cavity puts fixed mounting and cuts off, the equal fixed mounting in both sides of cutting off has the heat-conducting plate, the rivers pipeline is installed to the inside last side of heat-conducting plate, the supporting sleeve is installed in the outside of rivers pipeline, the installation baffle that is located the casing inside is all installed at the upper and lower both ends of cutting off, cut off and install the baffle and pass through the connecting piece and be connected, supporting structure is installed to the inside lower side symmetry of heat-conducting plate, two strip-shaped plates are installed to the inside symmetry of heat-conducting plate. The flue gas waste heat recovery device of the gas boiler improves the heat conducting performance, improves the waste heat recovery efficiency, and is convenient for assembling a plurality of devices.
When the waste heat utilization device is used, only the waste heat recovery efficiency is improved, the waste heat is not effectively used, and the waste heat utilization device cannot be directly applied to a thermal power generation enterprise using a boiler.
Therefore, in order to solve the problems, a flue gas waste heat comprehensive utilization device of a gas boiler is provided.
Disclosure of Invention
The utility model aims to provide a comprehensive utilization device for flue gas waste heat of a gas boiler, which aims to solve the problems that the waste heat utilization device only improves the waste heat recovery efficiency when in use, does not effectively use the waste heat and cannot be directly applied to thermal power generation enterprises using boilers.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a gas boiler flue gas waste heat comprehensive utilization device, includes: the heat exchanger comprises a heat exchanger main body, the left side of heat exchanger main body is through pipeline fixedly connected with heat exchanger inlet valve, the left side of heat exchanger inlet valve is through pipeline fixedly connected with relief valve, the left side of relief valve is through pipeline fixedly connected with governing valve, the left side of governing valve is through pipeline fixedly connected with feed water pump, the left side of feed water pump is through pipeline fixedly connected with booster pump inlet valve, the left side of booster pump inlet valve is through pipeline fixedly connected with flowmeter, the left side of flowmeter is through pipeline fixedly connected with partition valve, the left side of partition valve is through pipeline fixedly connected with bearing seal heater, the right side of heat exchanger inlet valve is through pipeline fixedly connected with heat exchanger outlet valve, the right side of heat exchanger outlet valve is through pipeline fixedly connected with heat exchanger outlet main valve, the right side of heat exchanger outlet main valve is through insulation structure connection with deaerator, insulation structure includes the insulation tube, insulation tube fixedly installed between heat exchanger outlet main valve and the ware, the upper and lower two sides of deaerator pipe are through pipeline fixedly connected with flowmeter, the two sides of insulation tube is provided with the stopper, the two side of heat exchanger outlet main valve is connected with the heat exchanger outlet main valve through pipeline fixedly connected with heat exchanger outlet main valve, the heat exchanger outlet main valve through pipeline fixedly connected with heat preservation pad, the inside surface of the heat preservation pad.
Preferably, a drain valve is installed at the bottom of the heat exchanger main body, a safety valve is arranged on a pipeline between the heat exchanger inlet valve and the emptying valve, and a temperature transmitter is arranged on a pipeline between the regulating valve and the water feeding pump.
Preferably, the limiting block and the limiting groove are of strip-shaped structures, and the limiting block is matched with the limiting groove.
Preferably, both sets of said housings are of semi-circular configuration.
Preferably, the sealing gasket is tightly attached to the outer surface of the heat-insulating pipe.
Preferably, the heat preservation pad is arc-shaped structure, the heat preservation pad is laminated with the surface of insulating tube.
Compared with the prior art, the utility model has the beneficial effects that: according to the waste heat utilization device, after the condensation water is pressurized, the condensation water is sent into the heat exchanger main body to exchange heat with the flue gas, and hot water after heat exchange is sent into the deaerator again, so that the purposes of reducing the exhaust gas temperature and improving the heat efficiency of the boiler are achieved.
Be provided with heat exchanger main part and insulation construction, after the unit operation is normal, slowly open the block valve, open booster pump inlet valve, open the blow-down valve and exhaust, close the blow-down valve after waiting that water is discharged, open heat exchanger inlet valve, open the blowoff valve, wash the heat exchanger main part, after water quality is clear, satisfy the condensate index, close the blowoff valve, open heat exchanger export total valve, start the feed pump, open the governing valve, operate the flowmeter and control flow, make the condensate after the pressure boost, send into inside the heat exchanger main part through the pipeline, exchange heat with the flue gas, send the hot water after the heat transfer into the deaerator again, thereby reach the purpose that reduces exhaust gas temperature, improve boiler thermal efficiency.
Drawings
FIG. 1 is a schematic elevational view of the heat exchanger body of the present utility model;
FIG. 2 is a schematic top view of the heat exchanger body of the present utility model;
FIG. 3 is a schematic view of an exploded view of the insulation structure of the present utility model;
fig. 4 is a schematic cross-sectional elevation view of the structure of the insulating tube of the present utility model.
In the figure: 1. a heat exchanger body; 11. a heat exchanger inlet valve; 12. a blow-off valve; 13. a regulating valve; 14. a water feed pump; 15. a booster pump inlet valve; 16. a flow meter; 17. a block valve; 18. a shaft seal heater; 19. a heat exchanger outlet valve; 110. a heat exchanger outlet main valve; 111. a deaerator; 2. a thermal insulation structure; 21. a heat preservation pipe; 22. a limiting block; 23. a housing; 24. a limit groove; 25. a sealing gasket; 26. a thermal insulation pad; 27. and (5) a bolt.
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, an embodiment of the present utility model is provided:
the heat exchanger main body 1, the heat exchanger inlet valve 11, the blow valve 12, the regulating valve 13, the feed pump 14, the booster pump inlet valve 15, the flowmeter 16, the isolating valve 17, the shaft seal heater 18, the heat exchanger outlet valve 19, the heat exchanger outlet main valve 110 and the deaerator 111 used in the utility model are products which are directly purchased in the market, and the principle and the connection mode are all well known in the prior art by the person skilled in the art, so that the description is omitted herein.
The utility model provides a gas boiler flue gas waste heat comprehensive utilization device, includes: the heat exchanger comprises a heat exchanger main body 1, a heat exchanger inlet valve 11 is fixedly connected to the left side of the heat exchanger main body 1 through a pipeline, a vent valve 12 is fixedly connected to the left side of the heat exchanger inlet valve 11 through a pipeline, a regulating valve 13 is fixedly connected to the left side of the vent valve 12 through a pipeline, a water supply pump 14 is fixedly connected to the left side of the regulating valve 13 through a pipeline, a booster pump inlet valve 15 is fixedly connected to the left side of the water supply pump 14 through a pipeline, a flowmeter 16 is fixedly connected to the left side of the booster pump inlet valve 15 through a pipeline, a partition valve 17 is fixedly connected to the left side of the flowmeter 16 through a pipeline, a shaft seal heater 18 is fixedly connected to the left side of the partition valve 17 through a pipeline, a heat exchanger outlet valve 19 is fixedly connected to the right side of the heat exchanger inlet valve 11 through a pipeline, a heat exchanger outlet main valve 110 is fixedly connected to the right side of the heat exchanger outlet valve 19 through a pipeline, the right side of heat exchanger export master valve 110 is connected with deaerator 111 through insulation construction 2, insulation construction 2 includes insulating tube 21, insulating tube 21 fixed mounting is between heat exchanger export master valve 110 and deaerator 111, the fixed welding in upper and lower two sides of insulating tube 21 has stopper 22, the upper and lower both sides of insulating tube 21 are provided with shell 23, limit groove 24 has been seted up to the internal surface of shell 23, the left and right sides fixed mounting of shell 23 internal surface has sealed pad 25, the heat preservation pad 26 is installed to the front and back both sides of shell 23 internal surface, two sets of shells 23 pass through bolt 27 fixed connection, through after with the condensate water pressure boost, send into heat exchanger main part 1 and flue gas and exchange heat, send into deaerator 111 again with the hot water after the heat transfer, thereby reach the purpose that reduces exhaust gas temperature, improve boiler thermal efficiency.
Further, a drain valve is installed at the bottom of the heat exchanger main body 1, a safety valve is arranged on a pipeline between the heat exchanger inlet valve 11 and the emptying valve 12, a temperature transmitter is arranged on a pipeline between the regulating valve 13 and the water feeding pump 14, and the drain valve provides a path for the outflow of sewage inside the heat exchanger main body 1.
Further, the limiting block 22 and the limiting groove 24 are of long-strip-shaped structures, the limiting block 22 is matched with the limiting groove 24, guiding is provided for the installation of the surface of the heat insulation pipe 21 through the matching of the limiting block 22 and the limiting groove 24, the installation position of the shell 23 is fixed, deflection is avoided, and the tightness of the heat insulation structure 2 is affected.
Further, the two sets of shells 23 are all in a semicircular structure, and the two sets of shells 23 can be spliced into a circular ring so as to cover the surface of the heat-insulating pipe 21 in all directions.
Further, the sealing gasket 25 is tightly attached to the outer surface of the heat-insulating pipe 21, the sealing property between the outer shell 23 and the heat-insulating pipe 21 is improved due to the arrangement of the sealing gasket 25, and the damage of the heat-insulating gasket 26 caused by rainwater leaking into the heat-insulating pipe 21 is avoided.
Further, the heat-insulating pad 26 is of an arc-shaped structure, the heat-insulating pad 26 is attached to the outer surface of the heat-insulating pipe 21, and the heat-insulating pad 26 can reduce the loss of the internal temperature of the heat-insulating pipe 21, so that the temperature of hot water flowing through the heat-insulating pipe 21 can not be reduced, and the steam consumption of the deaerator 111 is reduced.
Working principle: after the unit operates normally, the block valve 17 is slowly opened, the booster pump inlet valve 15 is opened, the emptying valve 12 is opened for exhausting, the emptying valve 12 is closed after water is exhausted, the heat exchanger inlet valve 11 is opened, the blow-down valve is opened, the heat exchanger main body 1 is flushed, after the water quality is clear and the condensed water index is met, the blow-down valve is closed, the heat exchanger outlet main valve 110 is opened, the water supply pump 14 is started, the regulating valve 13 is opened, and the flow meter 16 is operated to control the flow.
After the condensation water is pressurized, the condensation water is sent into the heat exchanger main body 1 through a pipeline to exchange heat with flue gas, hot water after heat exchange is sent into the deaerator 111 again, so that the purposes of reducing the exhaust gas temperature and improving the heat efficiency of the boiler are achieved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a gas boiler flue gas waste heat comprehensive utilization device, includes: the heat exchanger comprises a heat exchanger main body (1), a heat exchanger inlet valve (11) is fixedly connected to the left side of the heat exchanger main body (1) through a pipeline, an air release valve (12) is fixedly connected to the left side of the heat exchanger inlet valve (11) through a pipeline, a regulating valve (13) is fixedly connected to the left side of the air release valve (12) through a pipeline, a feed water pump (14) is fixedly connected to the left side of the regulating valve (13) through a pipeline, a booster pump inlet valve (15) is fixedly connected to the left side of the feed water pump (14) through a pipeline, a flowmeter (16) is fixedly connected to the left side of the booster pump inlet valve (15) through a pipeline, a partition valve (17) is fixedly connected to the left side of the flowmeter (16) through a pipeline, a shaft seal heater (18) is fixedly connected to the left side of the partition valve (17), a heat exchanger outlet valve (19) is fixedly connected to the right side of the heat exchanger inlet valve (11) through a pipeline, and a heat exchanger outlet main valve (110) is fixedly connected to the right side of the heat exchanger outlet valve (19) through a pipeline, and is characterized in that: the right side of heat exchanger export master valve (110) is connected with deaerator (111) through insulation construction (2), insulation construction (2) are including insulating tube (21), insulating tube (21) fixed mounting is between heat exchanger export master valve (110) and deaerator (111), the fixed welding in upper and lower two sides of insulating tube (21) has stopper (22), the upper and lower both sides of insulating tube (21) are provided with shell (23), spacing groove (24) have been seted up to the internal surface of shell (23), both ends fixed mounting has sealed pad (25) about shell (23) internal surface, heat preservation pad (26) are installed to both sides around shell (23) internal surface, two sets of shell (23) pass through bolt (27) fixed connection.
2. The gas boiler flue gas waste heat comprehensive utilization device according to claim 1, wherein: the bottom of the heat exchanger main body (1) is provided with a blow-down valve, a pipeline between the heat exchanger inlet valve (11) and the emptying valve (12) is provided with a safety valve, and a pipeline between the regulating valve (13) and the water feeding pump (14) is provided with a temperature transmitter.
3. The gas boiler flue gas waste heat comprehensive utilization device according to claim 1, wherein: the limiting block (22) and the limiting groove (24) are of strip-shaped structures, and the limiting block (22) and the limiting groove (24) are matched with each other.
4. The gas boiler flue gas waste heat comprehensive utilization device according to claim 1, wherein: both sets of said housings (23) are of semi-circular configuration.
5. The gas boiler flue gas waste heat comprehensive utilization device according to claim 1, wherein: the sealing gasket (25) is tightly attached to the outer surface of the heat preservation pipe (21).
6. The gas boiler flue gas waste heat comprehensive utilization device according to claim 1, wherein: the heat preservation pad (26) is of an arc-shaped structure, and the heat preservation pad (26) is attached to the outer surface of the heat preservation pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222862719.9U CN219674191U (en) | 2022-10-28 | 2022-10-28 | Comprehensive utilization device for flue gas waste heat of gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222862719.9U CN219674191U (en) | 2022-10-28 | 2022-10-28 | Comprehensive utilization device for flue gas waste heat of gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219674191U true CN219674191U (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222862719.9U Active CN219674191U (en) | 2022-10-28 | 2022-10-28 | Comprehensive utilization device for flue gas waste heat of gas boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219674191U (en) |
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2022
- 2022-10-28 CN CN202222862719.9U patent/CN219674191U/en active Active
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