CN211513996U - Flue gas carbon dioxide trapping device of coal-fired power plant - Google Patents
Flue gas carbon dioxide trapping device of coal-fired power plant Download PDFInfo
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- CN211513996U CN211513996U CN201921709925.8U CN201921709925U CN211513996U CN 211513996 U CN211513996 U CN 211513996U CN 201921709925 U CN201921709925 U CN 201921709925U CN 211513996 U CN211513996 U CN 211513996U
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Abstract
The utility model relates to a gas cleaning technical field just discloses a coal fired power plant flue gas carbon dioxide entrapment device, including the absorption tower, the absorption chamber has been seted up in the absorption tower, the draught fan that absorption tower left side bottom fixedly connected with and absorption chamber are linked together, draught fan left side fixedly connected with rose box, rose box left side fixedly connected with desulfurizer. This coal fired power plant flue gas carbon dioxide entrapment device can produce the flue gas that carries carbon dioxide in a large number when having solved present thermal power, and coal fired power plant mainly separates carbon dioxide from the flue gas through carbon dioxide entrapment solvent low temperature absorption carbon dioxide, the mechanism of high temperature analytic carbon dioxide, but current carbon dioxide entrapment device entrapment effect is not good, can't fully entrap the carbon dioxide in the flue gas, will have the consumption of entrapment solvent after using a period in addition, the problem of the entrapment cost of improvement.
Description
Technical Field
The utility model relates to a flue gas purification technical field specifically is a coal fired power plant flue gas carbon dioxide entrapment device.
Background
Flue gas refers to gaseous substances which are generated when fossil fuels such as coal and the like are combusted and pollute the environment, because the substances are usually discharged from a flue or a chimney, most of the flue gas generation process is caused by insufficient fuel and incomplete combustion, and because the flue gas has higher temperature, the flue gas can be used as a heat carrier for high-temperature reaction, the components of the flue gas are nitrogen, carbon dioxide, oxygen, water vapor, sulfide and the like, and inorganic pollutants account for more than ninety-nine percent; the contents of dust, powder slag and sulfur dioxide are less than one percent, and the dust, the powder slag and the sulfur dioxide are subjected to treatment by a gas purification device and then are emptied so as to reduce the pollution to the environment, and if the furnace is not operated normally, carbon monoxide, nitrogen oxide and other harmful gases are generated.
At present, flue gas carrying a large amount of carbon dioxide is generated in thermal power generation, carbon dioxide is separated from the flue gas mainly by a mechanism that a carbon dioxide collecting solvent absorbs the carbon dioxide at low temperature and analyzes the carbon dioxide at high temperature in a coal-fired power plant, but the existing carbon dioxide collecting device is poor in collecting effect and cannot fully collect the carbon dioxide in the flue gas, the collecting solvent is consumed after the carbon dioxide collecting device is used for a period of time, and the collecting cost is increased, so that the flue gas carbon dioxide collecting device for the coal-fired power plant is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a coal fired power plant flue gas carbon dioxide entrapment device, it is effectual to possess the entrapment, effectively reduce the consumption of entrapment solvent among the entrapment process, reduce the advantage of entrapment cost, can produce the flue gas that carries carbon dioxide in a large number when having solved present thermal power, coal fired power plant mainly absorbs carbon dioxide through carbon dioxide entrapment solvent low temperature, the mechanism of the analytic carbon dioxide of high temperature separates carbon dioxide from the flue gas, but current carbon dioxide entrapment device entrapment effect is not good, carbon dioxide in the unable abundant entrapment flue gas, and will have the consumption of entrapment solvent after using a period, the problem of the entrapment cost of improvement.
(II) technical scheme
For realizing that above-mentioned entrapment is effectual, effectively reduce the consumption of entrapment in-process entrapment solvent, reduce the purpose of entrapment cost, the utility model provides a following technical scheme: the utility model provides a coal fired power plant flue gas carbon dioxide entrapment device, includes the absorption tower, the absorption chamber has been seted up in the absorption tower, the draught fan that absorption tower left side bottom fixedly connected with is linked together with the absorption chamber, draught fan left side fixedly connected with rose box, rose box left side fixedly connected with desulfurizer, desulfurizer left side fixedly connected with flue gas intake pipe, absorption tower bottom fixedly connected with and the rich liquid pump that the absorption chamber is linked together, the delivery port department fixedly connected with heat exchanger of rich liquid pump, exchange chamber has been seted up in the heat exchanger, fixedly connected with heat exchange tube in the exchange chamber, absorption tower right side fixedly connected with runs through and extends to the absorption chamber in and the shower of two, fixed mounting has the first guide plate that is located the shower top in the absorption chamber, fixed mounting has the second guide plate that is located between two showers in the absorption chamber, the heat exchanger comprises a heat exchanger and is characterized in that the top of the heat exchanger is fixedly connected with a heater communicated with an exchange cavity, the right side of the heater is fixedly connected with a desorption tower, a desorption cavity is formed in the desorption tower, steam-water separators are fixedly mounted in the absorption cavity and the desorption cavity, a carbon dioxide discharge pipe communicated with the desorption cavity is fixedly connected to the top of the desorption tower, a barren pump communicated with the desorption cavity is fixedly connected to the bottom of the desorption tower, and a water outlet of the barren pump is fixedly connected with a heat exchange pipe through a liquid outlet pipe.
Preferably, the top of the absorption tower is fixedly connected with a flue gas discharge pipe communicated with the absorption cavity, the filter box is internally and slidably connected with two filter plates, and the front side of the filter box is rotatably connected with a maintenance door.
Preferably, the left side of the absorption tower is provided with an air inlet positioned at the bottom of the spray pipes, and the two spray pipes are fixedly connected with the heat exchange pipe through connecting pipes.
Preferably, the heat exchange tube is an S-shaped copper tube, and the bottom of the spray tube is fixedly connected with more than three atomizing nozzles.
Preferably, the areas of the first guide plate and the second guide plate are equal to the cross-sectional area of the absorption cavity, the left side of the first guide plate is provided with a first through hole, and the right side of the second guide plate is provided with a second through hole.
Preferably, the steam-water separator on the left side is located at the top of the first guide plate, and a water inlet which is matched with the heater and is located at the bottom of the steam-water separator on the right side is formed in the left side of the desorption tower.
(III) advantageous effects
Compared with the prior art, the utility model provides a coal fired power plant flue gas carbon dioxide entrapment device possesses following beneficial effect:
the flue gas carbon dioxide trapping device for the coal-fired power plant has the advantages that the flue gas sequentially passes through the desulfurizer and the filter box along the flue gas inlet pipe through the draught fan, so that sulfides and dust in the flue gas are removed, the dust is prevented from entering the absorption cavity and being combined with a trapping solvent to cause the consumption of the trapping solvent, the trapping solvent is atomized by arranging the spray pipe, so that the trapping solvent is fully contacted and absorbed with the carbon dioxide in the absorption cavity, the flue gas is fully contacted with the atomizing solvent by arranging the first guide plate and the second guide plate, the solvent is prevented from being discharged without complete contact due to the fact that the first through hole is formed in the left side of the first guide plate and the second through hole is formed in the right side of the second guide plate, the flue gas is prevented from being discharged without complete contact, the steam-water separator is arranged, the discharge of part of the, the aim of reducing the capturing cost is that the rich solution after capturing is pumped into the exchange cavity by the rich solution pump, then carries out heat exchange with the lean solution in the heat exchange tube, and then further heats the rich solution by the heater, so that the carbon dioxide in the rich solution is separated out in the desorption cavity, the separated high-temperature lean solution enters the heat exchange tube for heat exchange under the conveying of the lean solution pump, and finally is atomized and sprayed out by the spray pipe to continuously capture the carbon dioxide, thereby completing the capturing of the carbon dioxide, thereby effectively solving the problem that the flue gas carrying a large amount of carbon dioxide is generated in the current thermal power generation, the coal-fired power plant mainly separates the carbon dioxide from the flue gas by the mechanism that the carbon dioxide capturing solvent absorbs the carbon dioxide at low temperature and analyzes the carbon dioxide at high temperature, but the capturing effect of the current carbon dioxide capturing device is poor, and the problem of the trapping solvent consumption after a certain period of use, which increases the trapping cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a partial sectional view of the present invention.
In the figure: the device comprises an absorption tower 1, an absorption cavity 2, an induced draft fan 3, a filter box 4, a desulfurizer 5, a flue gas inlet pipe 6, a liquid enrichment pump 7, a heat exchanger 8, an exchange cavity 9, a heat exchange pipe 10, a spray pipe 11, a first guide plate 12, a second guide plate 13, a heater 14, a desorption tower 15, a desorption cavity 16, a steam-water separator 17, a carbon dioxide discharge pipe 18, a barren liquid pump 19 and a liquid outlet pipe 20.
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. 1-2, a flue gas carbon dioxide capturing device for a coal-fired power plant comprises an absorption tower 1, an absorption cavity 2 is arranged in the absorption tower 1, the top of the absorption tower 1 is fixedly connected with a flue gas discharge pipe communicated with the absorption cavity 2, the bottom of the left side of the absorption tower 1 is fixedly connected with an induced draft fan 3 communicated with the absorption cavity 2, the left side of the induced draft fan 3 is fixedly connected with a filter box 4, the filter box 4 is internally and slidably connected with two filter plates, the front side of the filter box 4 is rotatably connected with a maintenance door, the left side of the filter box 4 is fixedly connected with a desulfurizer 5, the left side of the desulfurizer 5 is fixedly connected with a flue gas inlet pipe 6, the bottom of the absorption tower 1 is fixedly connected with a pregnant solution pump 7 communicated with the absorption cavity 2, the water outlet of the pregnant solution pump 7 is fixedly connected with a heat exchanger 8, the heat exchange tube 10 is an S-shaped copper tube, the right side of the absorption tower 1 is fixedly connected with two spray tubes 11 which penetrate through and extend into the absorption cavity 2, the left side of the absorption tower 1 is provided with an air inlet positioned at the bottom of the spray tubes 11, the two spray tubes 11 are both fixedly connected with the heat exchange tube 10 through connecting tubes, the bottom of the spray tubes 11 is fixedly connected with more than three atomizing nozzles, the absorption cavity 2 is internally and fixedly provided with a first guide plate 12 positioned at the top of the spray tubes 11, the absorption cavity 2 is internally and fixedly provided with a second guide plate 13 positioned between the two spray tubes 11, the areas of the first guide plate 12 and the second guide plate 13 are both equal to the cross-sectional area of the absorption cavity 2, the left side of the first guide plate 12 is provided with a first through hole, the right side of the second guide plate 13 is provided with a second through hole, the top of the heat exchanger 8, a desorption cavity 16 is formed in the desorption tower 15, a steam-water separator 17 is fixedly mounted in each of the absorption cavity 2 and the desorption cavity 16, the steam-water separator 17 on the left side is located at the top of the first guide plate 12, a water inlet which is matched with the heater 14 and is located at the bottom of the steam-water separator 17 on the right side is formed in the left side of the desorption tower 15, a carbon dioxide discharge pipe 18 which is communicated with the desorption cavity 16 is fixedly connected to the top of the desorption tower 15, a lean liquid pump 19 which is communicated with the desorption cavity 16 is fixedly connected to the bottom of the desorption tower 15, and a water outlet of the lean liquid pump 19 is fixedly connected with the heat.
When in use, the flue gas is enabled to sequentially pass through the desulfurizer 5 and the filter box 4 along the flue gas inlet pipe 6 through the draught fan 3, so that sulfides and dust in the flue gas are removed, the dust is prevented from entering the absorption cavity 2 and being combined with a trapping solvent to cause the consumption of the trapping solvent, the trapping solvent is enabled to be atomized by arranging the spray pipe 11, so as to be fully contacted and absorbed with carbon dioxide in the absorption cavity 2, the flue gas is fully contacted with the atomizing solvent by arranging the first guide plate 12 and the second guide plate 13, because the left side of the first guide plate 12 is provided with a first through hole, and the right side of the second guide plate 13 is provided with a second through hole, so that part of the flue gas is prevented from being discharged without being fully contacted, the flue gas can be prevented from being discharged with part of the atomizing solvent carried by the flue gas by arranging the steam-water separator 17, the solvent loss, the aim of reducing the capturing cost is that the rich solution after capturing is input into the exchange cavity 9 by the rich solution pump 7, then carries out heat exchange with the lean solution in the heat exchange tube 10, the rich solution is further heated by the heater 14, so that the carbon dioxide in the rich solution is separated in the desorption cavity 16, the separated high-temperature lean solution enters the heat exchange tube 10 for heat exchange under the conveying of the lean solution pump 19, and finally is atomized and sprayed out by the spray tube 11 to continuously capture the carbon dioxide, thereby completing the capturing of the carbon dioxide.
To sum up, the flue gas carbon dioxide trapping device of the coal-fired power plant enables the flue gas to sequentially pass through the desulfurizer 5 and the filter box 4 along the flue gas inlet pipe 6 through the draught fan 3, so that sulfides and dust in the flue gas are removed, the dust is prevented from entering the absorption cavity 2 and being combined with a trapping solvent to cause the consumption of the trapping solvent, the trapping solvent is atomized by arranging the spray pipe 11, so that the trapping solvent is fully contacted and absorbed with the carbon dioxide in the absorption cavity 2, the flue gas is fully contacted with the atomizing solvent by arranging the first guide plate 12 and the second guide plate 13, because the left side of the first guide plate 12 is provided with the first through hole, and the right side of the second guide plate 13 is provided with the second through hole, so that part of the flue gas is prevented from being discharged without being fully contacted, and the flue gas can be prevented from carrying part, thereby achieving the purposes of good capturing effect, effectively reducing the consumption of capturing solvent in the capturing process and reducing the capturing cost, the rich solution after capturing is input into the exchange cavity 9 by the rich solution pump 7, then carries out heat exchange with the barren solution in the heat exchange tube 10, and further heats the rich solution by the heater 14, so that the carbon dioxide in the rich solution is separated out in the desorption cavity 16, the separated high-temperature barren solution enters the heat exchange tube 10 for heat exchange under the conveying of the barren solution pump 19, and finally is atomized and sprayed out by the spray tube 11 to continuously capture the carbon dioxide, thereby completing the capturing of the carbon dioxide, thereby effectively solving the problem that a large amount of flue gas carrying the carbon dioxide is generated in the current thermal power generation, the coal-fired power plant mainly separates the carbon dioxide from the flue gas by the mechanism that the carbon dioxide capturing solvent absorbs the carbon dioxide at low temperature and analyzes the carbon, however, the conventional carbon dioxide capturing device has a problem that the capturing effect is poor, the carbon dioxide in the flue gas cannot be captured sufficiently, and the capturing solvent is consumed after the device is used for a period of time, which increases the capturing cost.
It is to be noted that 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (6)
1. A coal fired power plant flue gas carbon dioxide capture device, includes absorption tower (1), its characterized in that: the absorption tower is characterized in that an absorption cavity (2) is formed in the absorption tower (1), an induced draft fan (3) which is communicated with the absorption cavity (2) is fixedly connected to the bottom of the left side of the absorption tower (1), a filter box (4) is fixedly connected to the left side of the induced draft fan (3), a desulfurizer (5) is fixedly connected to the left side of the filter box (4), a flue gas inlet pipe (6) is fixedly connected to the left side of the desulfurizer (5), a liquid enrichment pump (7) which is communicated with the absorption cavity (2) is fixedly connected to the bottom of the absorption tower (1), a heat exchanger (8) is fixedly connected to the water outlet of the liquid enrichment pump (7), a heat exchange cavity (9) is formed in the heat exchanger (8), a heat exchange tube (10) is fixedly connected to the inner side of the heat exchange cavity (9), a spray tube (11) which is two in number and runs through and, a first guide plate (12) positioned at the top of the spray pipe (11) is fixedly arranged in the absorption cavity (2), a second guide plate (13) positioned between the two spray pipes (11) is fixedly arranged in the absorption cavity (2), the top of the heat exchanger (8) is fixedly connected with a heater (14) communicated with the exchange cavity (9), a desorption tower (15) is fixedly connected on the right side of the heater (14), a desorption cavity (16) is arranged in the desorption tower (15), a steam-water separator (17) is fixedly arranged in the absorption cavity (2) and the desorption cavity (16), the top of the desorption tower (15) is fixedly connected with a carbon dioxide discharge pipe (18) communicated with the desorption cavity (16), the bottom of the desorption tower (15) is fixedly connected with a barren liquor pump (19) communicated with the desorption cavity (16), the water outlet of the barren liquor pump (19) is fixedly connected with the heat exchange tube (10) through a liquid outlet tube (20).
2. The coal fired power plant flue gas carbon dioxide capture plant of claim 1 wherein: the absorption tower (1) top fixedly connected with and absorption chamber (2) be linked together's flue gas delivery pipe, sliding connection has the filter that quantity is two in rose box (4), rose box (4) front side swivelling joint has the maintenance door.
3. The coal fired power plant flue gas carbon dioxide capture plant of claim 1 wherein: the absorption tower (1) left side is seted up and is located the air inlet of shower (11) bottom, two shower (11) all are through connecting pipe and heat exchange tube (10) fixed connection.
4. The coal fired power plant flue gas carbon dioxide capture plant of claim 1 wherein: the heat exchange tube (10) is an S-shaped copper tube, and the bottom of the spray tube (11) is fixedly connected with more than three atomizing nozzles.
5. The coal fired power plant flue gas carbon dioxide capture plant of claim 1 wherein: the area of the first guide plate (12) and the area of the second guide plate (13) are equal to the cross-sectional area of the absorption cavity (2), the left side of the first guide plate (12) is provided with a first through hole, and the right side of the second guide plate (13) is provided with a second through hole.
6. The coal fired power plant flue gas carbon dioxide capture plant of claim 1 wherein: the left side catch water (17) is located first guide plate (12) top, the water inlet that matches with heater (14) and be located right side catch water (17) bottom is seted up in desorber (15) left side.
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| CN201921709925.8U CN211513996U (en) | 2019-10-12 | 2019-10-12 | Flue gas carbon dioxide trapping device of coal-fired power plant |
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| CN201921709925.8U CN211513996U (en) | 2019-10-12 | 2019-10-12 | Flue gas carbon dioxide trapping device of coal-fired power plant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229213A (en) * | 2020-10-27 | 2021-01-15 | 余凤飞 | Smelting furnace for efficiently smelting and purifying tail gas |
| CN112938975A (en) * | 2021-02-18 | 2021-06-11 | 杭州京旺科技有限公司 | Carbon dioxide enrichment facility in flue gas |
| CN113350975A (en) * | 2021-05-28 | 2021-09-07 | 北京民利储能技术有限公司 | Carbon dioxide carbon capturing and desorbing device and implementation method thereof |
| CN115178056A (en) * | 2022-07-29 | 2022-10-14 | 北京石大油源科技开发有限公司 | Efficient capturing method and device for medium and high-concentration carbon dioxide |
| CN115318069A (en) * | 2022-07-22 | 2022-11-11 | 江苏方朔环境科技有限公司 | Carbon dioxide trapping and sealing device |
| CN115945045A (en) * | 2022-11-15 | 2023-04-11 | 原初科技（北京）有限公司 | Coal-fired power plant flue carbon dioxide capturing device and use method thereof |
| CN117339351A (en) * | 2023-12-04 | 2024-01-05 | 广州佰宏新能源科技股份有限公司 | Low-energy-consumption carbon dioxide capturing device and method |
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2019
- 2019-10-12 CN CN201921709925.8U patent/CN211513996U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229213A (en) * | 2020-10-27 | 2021-01-15 | 余凤飞 | Smelting furnace for efficiently smelting and purifying tail gas |
| CN112938975A (en) * | 2021-02-18 | 2021-06-11 | 杭州京旺科技有限公司 | Carbon dioxide enrichment facility in flue gas |
| CN112938975B (en) * | 2021-02-18 | 2022-06-03 | 杭州京旺科技有限公司 | Carbon dioxide enrichment facility in flue gas |
| CN113350975A (en) * | 2021-05-28 | 2021-09-07 | 北京民利储能技术有限公司 | Carbon dioxide carbon capturing and desorbing device and implementation method thereof |
| CN115318069A (en) * | 2022-07-22 | 2022-11-11 | 江苏方朔环境科技有限公司 | Carbon dioxide trapping and sealing device |
| CN115178056A (en) * | 2022-07-29 | 2022-10-14 | 北京石大油源科技开发有限公司 | Efficient capturing method and device for medium and high-concentration carbon dioxide |
| CN115945045A (en) * | 2022-11-15 | 2023-04-11 | 原初科技（北京）有限公司 | Coal-fired power plant flue carbon dioxide capturing device and use method thereof |
| CN115945045B (en) * | 2022-11-15 | 2023-07-11 | 原初科技（北京）有限公司 | Device for capturing carbon dioxide in flue of coal-fired power plant and application method of device |
| CN117339351A (en) * | 2023-12-04 | 2024-01-05 | 广州佰宏新能源科技股份有限公司 | Low-energy-consumption carbon dioxide capturing device and method |
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