CN220398029U - Drying device based on flue gas waste heat of thermal power plant - Google Patents
Drying device based on flue gas waste heat of thermal power plant Download PDFInfo
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- CN220398029U CN220398029U CN202320629415.XU CN202320629415U CN220398029U CN 220398029 U CN220398029 U CN 220398029U CN 202320629415 U CN202320629415 U CN 202320629415U CN 220398029 U CN220398029 U CN 220398029U
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- flue gas
- thermal power
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- air
- heat exchanger
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000003546 flue gas Substances 0.000 title claims abstract description 86
- 238000001035 drying Methods 0.000 title claims abstract description 62
- 239000002918 waste heat Substances 0.000 title claims abstract description 24
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 239000000523 sample Substances 0.000 claims description 20
- 239000000428 dust Substances 0.000 claims description 9
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000009529 body temperature measurement Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 241000206607 Porphyra umbilicalis Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of recycling of thermal power plants, and particularly discloses a drying device based on flue gas waste heat of a thermal power plant. Comprising the following steps: an air heat exchanger and a drying room; the air heat exchanger comprises a flue gas inlet, a flue gas outlet, an air inlet and an air outlet; the flue gas inlet is connected with a flue gas outlet of the thermal power plant; a first induced draft fan is arranged between the flue gas inlet and the flue gas outlet of the thermal power plant; the flue gas outlet is used for discharging flue gas after heat exchange; the air inlet and the air inlet are connected with the drying room. According to the utility model, the flue gas of the thermal power plant is subjected to heat exchange with the clean air in the drying room through the air heat exchanger, so that the waste heat of the flue gas of the thermal power plant is effectively utilized, the energy utilization rate is improved, the clean air is not directly contacted with the flue gas of the thermal power plant, the harmlessness during drying is ensured, and the safety is improved.
Description
Technical Field
The utility model belongs to the technical field of recycling of thermal power plants, and particularly relates to a drying device based on flue gas waste heat of a thermal power plant.
Background
At present, thermal power generation belongs to a large main support of an electric power source, and high-utility energy becomes a hot content of industry research. Meanwhile, the flue gas waste heat utilization technology is a centralized expression of a high-efficiency energy concept, particularly cascade energy utilization, is one of core principles followed by the flue gas utilization technology, namely, comprehensively analyzes the energy quality based on a thermodynamic principle, and achieves the aim of fully utilizing different grade energy sources in the flue gas. In recent years, various large thermal power enterprises have many researches in the direction of recycling flue gas waste heat, but the problems of low utilization efficiency and the like still exist.
High-temperature flue gas is discharged from a burner, is subjected to desulfurization, denitrification and dust removal pretreatment, is driven by a draught fan to be discharged into the atmosphere from a chimney, the temperature of the discharged flue gas can reach about 100 ℃, and the waste of resources is directly caused by the discharge of the flue gas.
Disclosure of Invention
The utility model aims to provide a drying device based on flue gas waste heat of a thermal power plant, which aims to solve the technical problem of low energy utilization rate caused by direct discharge of flue gas of the conventional thermal power plant.
In order to achieve the above purpose, the utility model is realized by adopting the following scheme:
drying device based on waste heat of flue gas of thermal power plant includes:
an air heat exchanger and a drying room;
the air heat exchanger comprises a flue gas inlet, a flue gas outlet, an air inlet and an air outlet;
the flue gas inlet is connected with a flue gas outlet of the thermal power plant;
a first induced draft fan is arranged between the flue gas inlet and the flue gas outlet of the thermal power plant;
the flue gas outlet is used for discharging flue gas after heat exchange;
the air inlet and the air inlet are connected with the drying room.
The utility model further improves that: the top of the drying room is provided with an exhaust port, and a dehumidifying fan is arranged in the exhaust port.
The utility model further improves that: and an insulating layer is arranged on the outer side of the drying room.
The utility model further improves that: the flue gas outlet of the thermal power plant and the flue gas inlet of the air heat exchanger are provided with a first baffle, the outer side of the flue gas outlet of the air heat exchanger is provided with a second baffle, the air inlet of the air heat exchanger and the drying room are provided with a third baffle, and the air outlet of the air heat exchanger and the drying room are provided with a fourth baffle.
The utility model further improves that: and a flue gas outlet of the air heat exchanger is connected with a chimney through a pipeline.
The utility model further improves that: the temperature measuring device is characterized in that a first temperature measuring probe is arranged between the first baffle and the first induced draft fan, a second temperature measuring probe is arranged between the third baffle and an air inlet of the air heat exchanger, and a third temperature measuring probe is arranged between the fourth baffle and an air outlet of the air heat exchanger.
The utility model further improves that: and a fourth temperature measuring probe is arranged in the drying room.
The utility model further improves that: and a second induced draft fan is arranged between the flue gas outlet of the thermal power plant and the chimney.
The utility model further improves that: and a dust remover is arranged between the flue gas outlet of the thermal power plant and the first induced draft fan.
The utility model further improves that: and a baking frame is arranged in the drying room.
Compared with the prior art, the utility model at least comprises the following beneficial effects:
1. according to the utility model, the flue gas of the thermal power plant is subjected to heat exchange with clean air in the drying room through the air heat exchanger, so that the waste heat of the flue gas of the thermal power plant is effectively utilized, the energy utilization rate is improved, the clean air is not directly contacted with the flue gas of the thermal power plant, the harmlessness during drying is ensured, and the safety is improved;
2. according to the utility model, the baffles are arranged outside the flue gas inlet, the flue gas outlet, the air inlet and the air outlet of the air heat exchanger, so that the inlet and outlet of flue gas and air are controlled, the heat exchange process is fully performed, and the energy utilization rate is improved;
3. according to the utility model, the first induced draft fan sucks the smoke into the air heat exchanger, and the second induced draft fan discharges the smoke, so that the gas circulation speed is improved, and the working efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic structural view of a drying device based on flue gas waste heat of a thermal power plant;
in the figure: 1. a chimney; 2. an air heat exchanger; 3. a drying room; 41. a first temperature measurement probe; 42. a second temperature measurement probe; 43. a third temperature measurement probe; 44. a fourth temperature probe; 5. a baking frame; 61. a first baffle; 62. a second baffle; 63. a third baffle; 64. a fourth baffle; 7. a boiler of a thermal power plant; 8. a first induced draft fan; 9. a dust remover; 10. a heat preservation layer; 11. a second induced draft fan; 12. a dehumidifying fan.
Detailed Description
The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The following detailed description is exemplary and is intended to provide further details of the utility model. Unless defined otherwise, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the utility model.
Example 1
Drying device based on waste heat of flue gas of thermal power plant, as shown in fig. 1, include:
the device comprises a chimney 1, an air heat exchanger 2, a drying room 3 and a thermal power plant boiler 7, wherein the thermal power plant boiler 7 is connected with the chimney 1 through a pipeline, and a dust remover 9 and a second induced draft fan 11 are sequentially arranged in the pipeline between the thermal power plant boiler 7 and the chimney 1;
the air outlet of the dust remover 9 is connected with the flue gas inlet of the air heat exchanger 2 through a pipeline, and a first induced draft fan 8, a first temperature probe 41 and a first baffle 61 are sequentially arranged in the pipeline between the dust remover 9 and the flue gas inlet of the air heat exchanger 2;
the flue gas outlet of the air heat exchanger 2 is connected with a second induced draft fan 11 through a pipeline, and a second baffle plate 62 is arranged in the pipeline between the flue gas outlet of the air heat exchanger 2 and the second induced draft fan 11;
the air inlet of the air heat exchanger 2 is connected with the drying room 3 through a pipeline, and a third baffle 63 and a second temperature measuring probe 42 are arranged in the pipeline between the air inlet and the drying room 3;
the air outlet of the air heat exchanger 2 is connected with the drying room 3 through a pipeline, and a fourth baffle 64 and a third temperature measuring probe 43 are arranged in the pipeline between the air outlet and the drying room 3;
a fourth temperature probe 44 is arranged in the drying room 3, an insulating layer 10 is arranged on the outer wall of the drying room 3, an exhaust port is arranged at the top of the drying room 3, and a dehumidifying fan 12 is arranged in the exhaust port.
As a preferable scheme of the embodiment, different materials are selected according to products near the position of the thermal power plant to carry out drying work in the drying room 3, and laver is selected as the material in the drying room 3 in the embodiment.
Specifically, a baking frame 5 is arranged in the drying room 3, the baking frame 5 is provided with a plurality of layers, laver is paved on each layer, and the laver is dried by clean air after heat exchange.
Specifically, in the working process, the flue gas discharged by the boiler 7 of the thermal power plant is subjected to preliminary filtration through the dust remover 9, and the subsequent flue gas is sucked into the chimney 1 through the second induced draft fan 11 for discharge after heat exchange;
the first induced draft fan 8 is started to suck the flue gas into the air heat exchanger 2 for heat exchange, and the first temperature measuring probe 41 is used for monitoring the temperature of the flue gas entering the air heat exchanger 2;
the second temperature probe 42 is used for monitoring the initial temperature of the clean air entering the air heat exchanger 2;
the third temperature measurement probe 43 is used for monitoring the temperature of the clean air leaving the air heat exchanger 2, and ensuring that the air temperature is sufficient for drying;
the fourth temperature probe 44 is used for monitoring the temperature in the drying room 3;
the first baffle 61 is used for controlling the flue gas to enter the air heat exchanger 2, the second baffle 62 is used for controlling the clean air to enter the air heat exchanger 2, and the third baffle 63 is used for controlling the clean air after heat exchange to enter the drying room 3.
Example 2
The application method of the drying device based on the flue gas waste heat of the thermal power plant is based on the drying device based on the flue gas waste heat of the thermal power plant, and comprises the following steps:
placing the objects to be dried in the drying room 3, and opening the first baffle 61, the second baffle 62, the third baffle 63 and the fourth baffle 64;
the first induced draft fan 8 is turned on to enable flue gas in the boiler 7 of the thermal power plant to enter the air heat exchanger 2 after passing through the dust remover 9;
the first baffle 61, the second baffle 62, the third baffle 63 and the fourth baffle 64 are closed, and the flue gas exchanges heat with air in the air heat exchanger 2;
after the heat exchange is finished, the fourth baffle plate 64 is opened, hot air flows into the drying room 3 from the air outlet of the air heat exchanger to be dried, and the moisture removal fan is opened to discharge moisture in the drying process so as to accelerate the drying speed;
the second baffle plate 62 and the second induced draft fan 11 are opened, and the flue gas in the air heat exchanger 2 flows out from the flue gas outlet and is discharged through the chimney 1.
It will be appreciated by those skilled in the art that the present utility model can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the utility model without departing from the spirit and scope of the utility model, which is intended to be covered by the claims.
Claims (10)
1. Drying device based on waste heat of flue gas of thermal power plant, its characterized in that includes:
an air heat exchanger (2) and a drying room (3);
the air heat exchanger (2) comprises a flue gas inlet, a flue gas outlet, an air inlet and an air outlet;
the flue gas inlet is connected with a flue gas outlet of the thermal power plant;
a first induced draft fan (8) is arranged between the flue gas inlet and the flue gas outlet of the thermal power plant;
the flue gas outlet is used for discharging flue gas after heat exchange;
the air inlet and the air inlet are connected with a drying room (3).
2. The drying device based on the flue gas waste heat of the thermal power plant according to claim 1, wherein an exhaust port is formed in the top of the drying room (3), and a dehumidifying fan (12) is arranged in the exhaust port.
3. The drying device based on the flue gas waste heat of the thermal power plant according to claim 1, wherein an insulating layer (10) is arranged on the outer side of the drying room (3).
4. The drying device based on the flue gas waste heat of the thermal power plant according to claim 1, wherein a first baffle is arranged between a flue gas outlet of the thermal power plant and a flue gas inlet of an air heat exchanger (2), a second baffle is arranged on the outer side of the flue gas outlet of the air heat exchanger (2), a third baffle is arranged between an air inlet of the air heat exchanger (2) and a drying room (3), and a fourth baffle is arranged between an air outlet of the air heat exchanger (2) and the drying room (3).
5. The drying device based on the waste heat of the flue gas of the thermal power plant according to claim 1, wherein the flue gas outlet of the air heat exchanger (2) is connected with the chimney (1) through a pipeline.
6. The drying device based on flue gas waste heat of a thermal power plant according to claim 4, wherein a first temperature measuring probe is arranged between the first baffle and the first induced draft fan (8), a second temperature measuring probe is arranged between the third baffle and an air inlet of the air heat exchanger (2), and a third temperature measuring probe is arranged between the fourth baffle and an air outlet of the air heat exchanger (2).
7. The drying device based on the flue gas waste heat of the thermal power plant according to claim 1, wherein a fourth temperature measuring probe is arranged in the drying room (3).
8. The drying device based on the flue gas waste heat of the thermal power plant according to claim 5, wherein a second induced draft fan (11) is arranged between the flue gas outlet of the thermal power plant and the chimney (1).
9. The drying device based on the flue gas waste heat of the thermal power plant according to claim 1, wherein a dust remover (9) is arranged between the flue gas outlet of the thermal power plant and the first induced draft fan.
10. The drying device based on the flue gas waste heat of the thermal power plant according to claim 1, wherein a baking frame (5) is arranged in the drying room (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320629415.XU CN220398029U (en) | 2023-03-27 | 2023-03-27 | Drying device based on flue gas waste heat of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320629415.XU CN220398029U (en) | 2023-03-27 | 2023-03-27 | Drying device based on flue gas waste heat of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220398029U true CN220398029U (en) | 2024-01-26 |
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ID=89613935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320629415.XU Active CN220398029U (en) | 2023-03-27 | 2023-03-27 | Drying device based on flue gas waste heat of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220398029U (en) |
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2023
- 2023-03-27 CN CN202320629415.XU patent/CN220398029U/en active Active
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