CN219638905U - Flue gas waste heat power generation system - Google Patents
Flue gas waste heat power generation system Download PDFInfo
- Publication number
- CN219638905U CN219638905U CN202321116806.8U CN202321116806U CN219638905U CN 219638905 U CN219638905 U CN 219638905U CN 202321116806 U CN202321116806 U CN 202321116806U CN 219638905 U CN219638905 U CN 219638905U
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- CN
- China
- Prior art keywords
- flue gas
- heat exchange
- power generation
- generation system
- spray
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000003546 flue gas Substances 0.000 title claims abstract description 54
- 239000002918 waste heat Substances 0.000 title claims abstract description 27
- 238000010248 power generation Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 44
- 238000000605 extraction Methods 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 4
- 230000005674 electromagnetic induction Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 9
- 239000002912 waste gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The utility model relates to the field of flue gas waste heat recycling, in particular to a flue gas waste heat power generation system, which comprises: a flue gas duct; the heat exchange device is positioned at the tail part of the flue gas pipeline, and a heat exchange medium is arranged in the heat exchange device and used for carrying out heat exchange on the flue gas to generate steam; the steam turbine is connected with the heat exchange device and is positioned at the rear end of the heat exchange device and is used for generating electricity and conveying the electricity to a power grid through the transformer; and the heating device is used for heating the heat exchange device. Through utilizing heating device as the assistance, make heating device heat transfer device to make heat transfer device can be better carry out the heat transfer, the heat transfer medium in the heat transfer device can produce more stable air current so that the steam turbine better generates electricity, makes the electric current of steam turbine electricity generation more stable, so that user's use.
Description
Technical Field
The utility model relates to the field of flue gas waste heat recycling, in particular to a flue gas waste heat power generation system.
Background
In the process of smelting and calcining metal ores or manufacturing coke, a large amount of waste heat of flue gas can be generated, if the flue gas is directly filtered and discharged into the atmosphere, a large amount of heat is wasted, and the heat can also cause the temperature rise in local areas, so that the waste heat of the flue gas is gradually mainly used for generating power to illuminate the family lights, but in the process of generating power, the waste heat of the flue gas is different due to the temperature difference of the flue gas, the flow of the flue gas is suddenly high or suddenly low, so that the generated current is unstable in the process of generating power by utilizing the waste heat of the flue gas, the phenomenon of suddenly large or small is easy to occur, the electric appliance is easy to damage due to the suddenly large or small current, and the use of a user is influenced.
Disclosure of Invention
In order to improve the stability of current generated by the flue gas waste heat, the utility model provides a flue gas waste heat power generation system, which is characterized in that a heating device is used as an aid to heat a heat exchange device, so that the heat exchange device can exchange heat better, a heat exchange medium in the heat exchange device can generate more stable air flow to facilitate a steam turbine to generate power better, and the current generated by the steam turbine is more stable to facilitate the use of a user.
The utility model provides a smoke waste heat power generation system, which adopts the following technical scheme:
a flue gas waste heat power generation system comprising:
a flue gas duct;
the heat exchange device is positioned at the tail part of the flue gas pipeline, and a heat exchange medium is arranged in the heat exchange device and used for carrying out heat exchange on the flue gas to generate steam;
the steam turbine is connected with the heat exchange device and is positioned at the rear end of the heat exchange device and is used for generating electricity and conveying the electricity to a power grid through the transformer; and
and the heating device is used for heating the heat exchange device.
Preferably, the heating device adopts open fire heating, and the heating device is positioned below the heat exchange device.
Preferably, the heating device adopts electromagnetic induction heating, the heating device is a coil, and the coil is wound on the heat exchange device.
Preferably, the flue gas waste heat power generation system further comprises an exhaust gas purification device, and the exhaust gas purification device is connected with an exhaust pipeline of the steam turbine.
Preferably, the heat exchange device comprises a tank body, a spray pipe and a spray head;
the spray pipes are arranged on the inner wall of the tank body, the number of the spray heads is multiple, and the spray heads are uniformly distributed on the spray pipes.
Preferably, the spray nozzle adopts a mist spray nozzle.
Preferably, a plurality of spray heads are uniformly distributed on the spray pipe.
Preferably, the heat exchange device further comprises a filter pump body, and the filter pump body is provided with an extraction pipeline and a return pipeline;
one end of the extraction pipeline is connected with the bottom of the tank body, and the other end of the extraction pipeline is connected with the extraction end of the filter pump body;
one end of the return pipeline is connected with the discharge end of the filter pump body, and the other end of the return pipeline is connected with the top of the tank body;
the dust collecting device is characterized in that a filter screen is arranged in the return pipeline, a dust collecting box is connected to the return pipeline, and the dust collecting box is located below the filter screen.
Preferably, the dust collection box comprises a box body and a bottom plate, the bottom plate is detachably connected to the bottom of the box body, a plugboard is sealed on the dust collection box in a sliding mode, and the plugboard can be connected with the box body in a sealing mode.
Preferably, the heat exchange device further comprises a spray pump body, the extraction end of the spray pump body is communicated with the return pipeline, the extraction end of the spray pump body is positioned at the rear end of the filter screen, and the discharge end of the spray pump body is connected with the spray pipe.
In summary, the utility model has the following beneficial technical effects:
1. according to the utility model, the heating device is used as an aid, so that the heating device is used for heating the heat exchange device, the heat exchange device can perform heat exchange better, and the heat exchange medium in the heat exchange device can generate more stable air flow so as to facilitate the steam turbine to perform power generation better, so that the generated current of the steam turbine is more stable, and the use of a user is facilitated.
2. According to the utility model, the spray pipe and the spray head are arranged in the tank body, so that the heat exchange device can better and faster adsorb dust in the flue gas, and the dust is filtered by the filter pump body and the filter screen, so that impurities entering the steam turbine are reduced.
Drawings
FIG. 1 is a system diagram of an embodiment of the present utility model.
Fig. 2 is a schematic structural view of a heat exchange device in an embodiment of the present utility model.
Reference numerals illustrate: 1. a flue gas pipeline; 2. a heat exchange device; 21. a tank body; 22. a shower pipe; 23. a spray head; 24. filtering the pump body; 25. extracting a pipeline; 26. a return line; 261. a filter screen; 27. a dust collection box; 271. a case; 272. a bottom plate; 273. inserting plate; 28. spraying a pump body; 3. a steam turbine; 4. a heating device; 5. an exhaust gas purifying device.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The embodiment of the utility model discloses a flue gas waste heat power generation system.
Referring to fig. 1, the flue gas waste heat power generation system comprises a flue gas pipeline 1, a heat exchange device 2, a steam turbine 3 and a heating device 4.
The flue gas pipeline is connected with a boiler or a calciner, the heat exchange device 2 is used for heat exchange of flue gas, a heat exchange solution is contained in the heat exchange device 2, water or water solution can be adopted as the heat exchange solution, the exhaust end of the flue gas pipeline is communicated with the bottom of the heat exchange device 2, and flue gas is directly discharged into the heat exchange solution, so that the heat exchange solution exchanges heat with the flue gas.
The heat exchange device 2 is arranged at the tail part of the flue gas pipeline 1, the steam turbine 3 is arranged at the rear end of the heat exchange device 2, the steam turbine 3 generates power by utilizing heat exchange gas generated by the heat exchange device 2, the power generation end of the steam turbine 3 is connected with the transformer, and then power generated by the steam turbine 3 is transmitted to a power grid through the transformer.
The heating device 4 can adopt open fire heating or electromagnetic induction heating, if the heating device 4 adopts open fire heating, the heating device 4 is arranged right below the heat exchange device 2, and the heating device 4 is utilized to directly heat the outside of the heat exchange device 2; if electromagnetic heating is used for the heating device 4, the heating device 4 is a coil, and the coil is wound outside the heat exchanging device 2.
Specifically, after the flue gas heat exchange is completed and the power generation by the steam turbine 3 is completed, the flue gas is required to be subjected to waste gas treatment, so that the rear end of the steam turbine 3 is further provided with the waste gas purifying device 5, and the waste gas purifying device 5 is connected with an exhaust pipe of the steam turbine 3.
Referring to fig. 2, in particular, the heat exchange device 2 includes a tank 21, a shower pipe 22, a shower head 23, a filter pump body 24, an extraction line 25, and a return line 26.
The bottom of the tank body 21 is provided with supporting leg legs, and the tank body 21 adopts a cylindrical structure.
The shower pipe 22 coils on the inner wall of the tank body 21, the spray heads 23 adopt vaporific spray heads, the number of the spray heads 23 is a plurality of, the spray heads 23 are uniformly distributed on the shower pipe 22, and the spray heads 23 face the inner direction of the tank body 21 so as to absorb the heat of the flue gas better.
One end of the extraction pipe 25 is connected to the extraction end of the filter pump body 24, the other end of the extraction pipe 25 is connected to the bottom of the tank body 21, one end of the return pipe 26 is connected to the discharge end of the filter pump body 24, and the other end of the return pipe 26 is connected to the top of the tank body 21. And a filter screen 261 is fixed on the inner wall of the return line 26, and the filter screen 261 filters the heat exchange solution flowing through the return line 26. Specifically, a dust box 27 is fixedly installed on the return pipeline 26, impurities filtered by the filter screen 261 fall into the dust box 27, and the dust box 27 is positioned right below the filter screen 261.
Specifically, the dust box 27 includes a box body 271 and a bottom plate 272, wherein the box body 271 is located at the bottom of the return line 26, and the box body 271 is in sealing connection with the return line 26, the box body 271 is located under the filter screen 261, the bottom plate 272 is detachably connected to the bottom fixed to the box body 271, and specifically, the bottom plate 272 is fixed to the bottom of the box body 271 through bolting.
In order to facilitate the impurities filtered by the filter screen 261 to fall into the tank 271, the filter screen 261 may be obliquely installed and fixed in the return pipe.
Referring to fig. 2, in order to facilitate the operator to take out the impurities in the case 271, the case 271 is further inserted with a plugboard 273, the plugboard 273 is slidably sealed on the case 271, one end of the plugboard 273 may abut against the inner wall of the case 271, preferably, the end of the plugboard 273 may be fixed on the case 271, and the other end of the plugboard 273 may drive the plugboard 273 to slide on the case 271, so that the impurities above the plugboard 273 fall into the case 271 between the plugboard 273 and the bottom board 272, and then the plugboard 273 is inserted again, and the bottom board 272 is removed, so that the impurities can be taken out.
The heat exchange device 2 further comprises a spray pump body 28, wherein the extraction end of the spray pump body 28 is communicated with the return pipeline 26, specifically, the extraction end of the spray pump body 28 is positioned at the rear end of a filter screen 261 on the loop pipeline, and the discharge end of the spray pump body 28 is communicated with the spray pipe 22.
When the device is used, the heat exchange solution continuously exchanges heat with the flue gas and generates steam, the steam and the flue gas enter the steam turbine 3 together and generate power by the steam turbine 3, electricity is transmitted to a power grid through a transformer, and gas generated by the steam turbine 3 is transmitted to the waste gas purification device 5 for waste gas treatment. In the process of heat exchange between the heat exchange solution and the flue gas, the filtering pump body 24 continuously extracts the heat exchange solution to filter impurities therein and store the impurities through the box body 271, staff can take out the impurities through the disassembly and the installation of the plugboard 273 and the bottom plate 272, one part of the filtered heat exchange solution directly flows back into the tank body 21, the other part of the filtered heat exchange solution is sent into the spray pipe 22 through the spray pump body 28 and exchanges heat with the flue gas in the tank body 21 after being sprayed out by the spray head 23, and generated steam enters the steam turbine 3 to generate electricity.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (10)
1. A flue gas waste heat power generation system, comprising:
a flue gas duct;
the heat exchange device is positioned at the tail part of the flue gas pipeline, and a heat exchange medium is arranged in the heat exchange device and used for carrying out heat exchange on the flue gas to generate steam;
the steam turbine is connected with the heat exchange device and is positioned at the rear end of the heat exchange device and is used for generating electricity and conveying the electricity to a power grid through the transformer; and
and the heating device is used for heating the heat exchange device.
2. The flue gas waste heat power generation system according to claim 1, wherein the heating device is heated by open fire, and the heating device is located below the heat exchange device.
3. The flue gas waste heat power generation system according to claim 1, wherein the heating device adopts electromagnetic induction heating, the heating device is a coil, and the coil is wound on the heat exchange device.
4. The flue gas waste heat power generation system according to claim 1, further comprising an exhaust gas purification device connected to an exhaust pipe of the steam turbine.
5. A flue gas waste heat power generation system according to any one of claims 1 to 4, wherein the heat exchange means comprises a tank, a shower pipe and a nozzle;
the spray pipes are arranged on the inner wall of the tank body, the number of the spray heads is multiple, and the spray heads are uniformly distributed on the spray pipes.
6. The flue gas waste heat power generation system of claim 5, wherein the spray head is a mist spray head.
7. The flue gas waste heat power generation system of claim 5, wherein a plurality of said spray heads are uniformly distributed on the spray pipe.
8. The flue gas waste heat power generation system according to claim 5, wherein the heat exchange device further comprises a filter pump body, and the filter pump body is provided with an extraction pipeline and a return pipeline;
one end of the extraction pipeline is connected with the bottom of the tank body, and the other end of the extraction pipeline is connected with the extraction end of the filter pump body;
one end of the return pipeline is connected with the discharge end of the filter pump body, and the other end of the return pipeline is connected with the top of the tank body;
the dust collecting device is characterized in that a filter screen is arranged in the return pipeline, a dust collecting box is connected to the return pipeline, and the dust collecting box is located below the filter screen.
9. The flue gas waste heat power generation system according to claim 8, wherein the dust collection box comprises a box body and a bottom plate, the bottom plate is detachably connected to the bottom of the box body, a plugboard is sealed on the dust collection box in a sliding manner, and the plugboard can be connected with the box body in a sealing manner.
10. The flue gas waste heat power generation system according to claim 8, wherein the heat exchange device further comprises a spray pump body, the extraction end of the spray pump body is communicated with the return pipeline, the extraction end of the spray pump is positioned at the rear end of the filter screen, and the discharge end of the spray pump body is connected with the spray pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116806.8U CN219638905U (en) | 2023-05-10 | 2023-05-10 | Flue gas waste heat power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116806.8U CN219638905U (en) | 2023-05-10 | 2023-05-10 | Flue gas waste heat power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219638905U true CN219638905U (en) | 2023-09-05 |
Family
ID=87821771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321116806.8U Active CN219638905U (en) | 2023-05-10 | 2023-05-10 | Flue gas waste heat power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219638905U (en) |
-
2023
- 2023-05-10 CN CN202321116806.8U patent/CN219638905U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |