CN220453693U - Boiler flue gas waste heat circulation heating device - Google Patents
Boiler flue gas waste heat circulation heating device Download PDFInfo
- Publication number
- CN220453693U CN220453693U CN202320958864.9U CN202320958864U CN220453693U CN 220453693 U CN220453693 U CN 220453693U CN 202320958864 U CN202320958864 U CN 202320958864U CN 220453693 U CN220453693 U CN 220453693U
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- Prior art keywords
- heat exchange
- heat
- exchange box
- filter screen
- box
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Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000003546 flue gas Substances 0.000 title claims abstract description 18
- 239000002918 waste heat Substances 0.000 title claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
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- Chimneys And Flues (AREA)
Abstract
The utility model relates to a boiler flue gas waste heat circulation heating device in the technical field of waste heat recycling equipment, which comprises a heat exchange box; the heat exchange box is provided with an air inlet and an air outlet; the heat exchange box is internally provided with a first heat exchange coil, and an outlet of the first heat exchange coil is communicated with a medium inlet pipe of the second heat exchange coil through a guide pipe; the bottom of the heat exchange box is fixedly provided with a filter screen, the air inlet is positioned on the heat exchange box below the filter screen, the heat exchange box below the filter screen is also provided with a dust discharging port with a switch valve, the air outlet is positioned on the heat exchange box above the filter screen, and the heat exchange coil is positioned in the heat exchange box above the filter screen. The utility model has reasonable structure and simple operation, can exchange heat from the inside and the outside of the heat exchange box at the same time, has high heat exchange efficiency and good effect, reduces the heat loss, improves the utilization rate of the heat, can preliminarily filter the waste gas during heat exchange, and avoids a large amount of dust from being stuck on the second heat exchange coil pipe to influence the heat exchange effect.
Description
Technical Field
The utility model belongs to the technical field of waste heat recycling equipment, and particularly relates to a boiler flue gas waste heat recycling heat supply device.
Background
In the using process of the boiler, the flue can discharge waste gas containing a large amount of heat, and the direct discharge of the waste gas can be reduced
The utilization rate of the heat is low, so that the energy is not only saved, but also the environment is not protected; patent document with application number CN 205372701U discloses a boiler flue gas waste heat circulation heating system, which comprises an air inlet pipeline, a blower, a dust removing device, a boiler flue gas waste heat heating box, an air outlet pipeline, a cold water pipeline, a chimney, a drying device, a hot water circulation heating pipeline, a hot water tank, a hot water pipeline, a catalytic heating device and an outlet pipeline; the catalyst is arranged in the blower, the air inlet end of the blower is connected with an air inlet pipeline, the air outlet end of the blower is connected with one end of the dust removal device, a curved flue gas heating pipeline is arranged in the boiler flue gas waste heat heating box, one end of the curved flue gas heating pipeline is connected with the other end of the dust removal device, and the other end of the curved flue gas heating pipeline is connected with one end of the air outlet pipeline; the water inlet of the boiler flue gas waste heat heating box is connected with one end of a cold water pipeline, and the water outlet is connected with one end of a water outlet pipeline;
the catalytic heating device is internally provided with a catalytic box, and a hot water circulation heating pipeline is arranged on the outer surface of the catalytic box in a surrounding manner. The boiler flue gas of this patent is carrying out waste heat utilization behind dust collector, can lose a large amount of heat in the dust removal process, is unfavorable for waste heat utilization. Therefore, there is a need for a boiler flue gas waste heat cycle heating apparatus that solves the above-mentioned problems.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a boiler flue gas waste heat circulation heating device, which comprises a heat exchange box; the heat exchange box is provided with an air inlet and an air outlet; the heat exchange box is internally provided with a second heat exchange coil, and an outlet of the second heat exchange coil is communicated with a medium inlet pipe of the second heat exchange coil through a guide pipe;
the bottom of the heat exchange box is fixedly provided with a filter screen, the air inlet is positioned on the heat exchange box below the filter screen, the heat exchange box below the filter screen is also provided with a dust exhaust port with a switch valve, the air exhaust port is positioned on the heat exchange box above the filter screen, and the heat exchange coil is positioned in the heat exchange box above the filter screen. The high-temperature waste gas exhausted by the boiler is introduced into the heat exchange box, the heat exchange coil I outside the heat exchange box and the heat exchange coil II in the heat exchange box can absorb and exchange heat of the waste gas in an inner-outer fit manner, the heat exchange effect is improved, meanwhile, the arrangement of the filter screen can perform preliminary filtration on the waste gas during heat exchange, and the influence on the heat exchange effect of the heat exchange coil II due to the fact that a large amount of dust is adhered to the heat exchange coil II is avoided.
The utility model also comprises other components which can ensure that the boiler flue gas waste heat circulation heating device is normally used, such as a control component of a stepping motor, and a control component (such as a water pump, an air pump and the like) for controlling the heat exchange medium to flow in the first heat exchange coil and the second heat exchange coil, which are all conventional technical means in the field. In addition, the undefined device or component in the present utility model adopts conventional technical means in the field and is conventional equipment in the field.
The working principle of the utility model is as follows: the boiler exhaust high temperature waste gas lets in the heat exchange box, and heat exchange coil pipe I outside the heat exchange box and heat exchange coil pipe II in the heat exchange box can inside and outside complex absorb the heat transfer to the heat of waste gas, have improved the heat transfer effect, and the setting of filter screen can carry out preliminary filtration to waste gas when the heat transfer simultaneously, avoids a large amount of dust to be stained with and glues on heat exchange coil pipe II, influences heat transfer effect of heat exchange coil pipe II. In the heat exchange process, the heat exchange medium in the second heat exchange coil can exchange heat with the hot waste gas in the heat exchange box efficiently and uniformly.
The heat exchange box has the beneficial effects of reasonable structure and simple operation, can exchange heat from the inside and the outside of the heat exchange box, has high heat exchange efficiency and good effect, reduces heat loss, improves the utilization rate of heat, can perform preliminary filtration on waste gas during heat exchange, and avoids a large amount of dust from being adhered to the second heat exchange coil pipe to influence the heat exchange effect.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a boiler flue gas waste heat recycling heat supply device in embodiment 1;
in the figure: 1. a heat exchange box; 2. an air inlet; 3. an exhaust port; 4. a first heat exchange coil; 5. a filter screen; 6. a second heat exchange coil; 7. a medium inlet pipe; 8. a medium outlet pipe; 9. a conduit; 14. and a dust exhaust port.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, and in which embodiments of the utility model are shown. All other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this utility model.
Examples
As shown in fig. 1, the utility model provides a boiler flue gas waste heat circulation heating device, which comprises a heat exchange box 1; the heat exchange box 1 is provided with an air inlet 2 and an air outlet 3; the outside of the heat exchange box 1 is wound with a first heat exchange coil pipe 4, a second heat exchange coil pipe 6 is arranged in the heat exchange box 1, and the outlet of the first heat exchange coil pipe 4 is communicated with a medium inlet pipe 7 of the second heat exchange coil pipe 6 through a conduit 9;
the bottom of the heat exchange box 1 is fixedly provided with a filter screen 5, the air inlet 2 is positioned on the heat exchange box 1 below the filter screen 5, the heat exchange box 1 below the filter screen 5 is also provided with a dust exhaust port 14 with a switch valve, the air outlet 3 is positioned on the heat exchange box 1 above the filter screen 5, and the heat exchange coil two 6 is positioned in the heat exchange box 1 above the filter screen 5. The high-temperature waste gas exhausted by the boiler is introduced into the heat exchange box 1, the first heat exchange coil 4 outside the heat exchange box 1 and the second heat exchange coil 6 inside the heat exchange box 1 can absorb and exchange heat of the waste gas in an inner-outer fit manner, the heat exchange effect is improved, meanwhile, the arrangement of the filter screen 5 can perform preliminary filtration on the waste gas during heat exchange, and the influence on the heat exchange effect of the second heat exchange coil 6 due to the fact that a large amount of dust is adhered to the second heat exchange coil 6 is avoided.
The embodiments of the present utility model have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (1)
1. A boiler flue gas waste heat circulation heating device comprises a heat exchange box; the heat exchange box is provided with an air inlet and an air outlet; the method is characterized in that: the heat exchange box is internally provided with a second heat exchange coil, and an outlet of the second heat exchange coil is communicated with a medium inlet pipe of the second heat exchange coil through a guide pipe;
the bottom of the heat exchange box is fixedly provided with a filter screen, the air inlet is positioned on the heat exchange box below the filter screen, the heat exchange box below the filter screen is also provided with a dust exhaust port with a switch valve, the air exhaust port is positioned on the heat exchange box above the filter screen, and the heat exchange coil is positioned in the heat exchange box above the filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320958864.9U CN220453693U (en) | 2023-04-25 | 2023-04-25 | Boiler flue gas waste heat circulation heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320958864.9U CN220453693U (en) | 2023-04-25 | 2023-04-25 | Boiler flue gas waste heat circulation heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220453693U true CN220453693U (en) | 2024-02-06 |
Family
ID=89735731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320958864.9U Active CN220453693U (en) | 2023-04-25 | 2023-04-25 | Boiler flue gas waste heat circulation heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220453693U (en) |
-
2023
- 2023-04-25 CN CN202320958864.9U patent/CN220453693U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |