CN216677687U - Flue gas carbon dioxide trapping apparatus of thermal power factory - Google Patents
Flue gas carbon dioxide trapping apparatus of thermal power factory Download PDFInfo
- Publication number
- CN216677687U CN216677687U CN202122548470.XU CN202122548470U CN216677687U CN 216677687 U CN216677687 U CN 216677687U CN 202122548470 U CN202122548470 U CN 202122548470U CN 216677687 U CN216677687 U CN 216677687U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- unit
- carbon dioxide
- thermal power
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 84
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000003546 flue gas Substances 0.000 title claims abstract description 71
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 42
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims abstract description 24
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 66
- 239000003513 alkali Substances 0.000 claims description 46
- 239000000498 cooling water Substances 0.000 claims description 15
- 238000005273 aeration Methods 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract description 4
- 230000002378 acidificating effect Effects 0.000 abstract description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract description 2
- 239000002912 waste gas Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
Abstract
A flue gas carbon dioxide capture device of a thermal power plant comprises a flue gas filtering unit, a flue gas cooling and water-lifting unit, a power unit and a carbon dioxide absorption unit; one end of the flue gas filtering unit is connected with a chimney of a thermal power plant, the other end of the flue gas filtering unit is connected with the power unit, and the flue gas cooling and water lifting unit is arranged between the power unit and the flue gas filtering unit; the power unit is connected with the carbon dioxide absorption unit. The device can collect and utilize the acidic waste gas such as carbon dioxide and the like which pollute the environment and are discharged from the chimney of the thermal power plant. The obtained product is mainly sodium carbonate and has certain application value.
Description
Technical Field
The utility model belongs to the technical field of carbon dioxide capture, and particularly relates to a flue gas carbon dioxide capture device of a thermal power plant.
Background
Coal is used as fuel in a thermal power plant, and a large amount of carbon dioxide released after the coal is combusted is discharged into the atmosphere along with flue gas. This means that the hydro-power generation enterprise will face extremely serious challenges. However, the thermal power industry in China starts late, and advanced experience and corresponding supporting measures for capturing and fixing carbon dioxide are not provided. This leads to the dilemma of life and death that the thermal power industry faces in the large background of "carbon spike, carbon neutralization". How to realize carbon dioxide capture and collection is a key ring for relieving the dilemma of thermal power enterprises.
Disclosure of Invention
The utility model aims to provide a flue gas carbon dioxide capture device of a thermal power plant to solve the problems.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a flue gas carbon dioxide capture device of a thermal power plant comprises a flue gas filtering unit, a flue gas cooling and water-lifting unit, a power unit and a carbon dioxide absorption unit; one end of the flue gas filtering unit is connected with a chimney of a thermal power plant, the other end of the flue gas filtering unit is connected with the power unit, and the flue gas cooling and water lifting unit is arranged between the power unit and the flue gas filtering unit; the power unit is connected with the carbon dioxide absorption unit.
Further, the flue gas filtering unit is a flue gas filter, and the flue gas filter is connected to a chimney of a thermal power plant through a pipeline.
Furthermore, the other end of the flue gas filtering unit is connected with a carbon dioxide absorption unit through a pipeline, a power unit is arranged on the pipelines of the carbon dioxide absorption unit and the flue gas filtering unit, and the power unit is a fan.
Further, the flue gas cooling water lifting unit comprises a flue gas cooling water pipeline and a condensed water collecting pool; the flue gas cooling water pipeline is arranged on a pipeline between the power unit and the flue gas filtering unit, and the bottom of the pipeline where the flue gas cooling water pipeline is located is connected with the condensed water collecting tank.
Furthermore, the bottom of the pipeline where the flue gas cooling water pipeline is located is in a slope shape, so that a confluence structure is formed.
Further, the carbon dioxide absorption unit comprises an alkali liquor storage tank, an aeration device, an alkali liquor circulating pump and a spraying device; the inlet of the alkali liquor storage tank is connected with the power unit through a pipeline, the aeration devices are arranged on the side surface and the bottom of the alkali liquor storage tank, and the aeration devices are connected with the pipeline of the inlet; the top of alkali lye holding vessel is provided with the blast pipe, sets up spray set on the blast pipe, and spray set passes through the tube coupling alkali lye holding vessel, sets up the alkali lye circulating pump between alkali lye holding vessel and the spray set.
Furthermore, the designed position of the full alkali liquid level of the alkali liquid storage tank is lower than that of the power unit.
Further, industrial sodium hydroxide solution with concentration% is stored in the alkali liquor storage tank.
Compared with the prior art, the utility model has the following technical effects:
the device can collect and utilize the acidic waste gas such as carbon dioxide and the like which pollute the environment and are discharged from the chimney of the thermal power plant. The obtained product is mainly sodium carbonate and has certain application value.
The flue gas water lifting technology is integrated, so that the water consumption of a power plant can be effectively reduced, and the environment-friendly efficiency is improved.
The device does not influence the operation of the power plant unit when absorbing the carbon dioxide discharged from the chimney.
The environmental protection efficiency is higher, and multistage carbon dioxide absorbing device can thoroughly absorb chimney exhaust carbon dioxide, can effectively reduce carbon emission, and the exhaust residual gas does not produce any adverse effect to the environment almost.
Drawings
FIG. 1 is a schematic view of a carbon dioxide fixing device in flue gas of a thermal power plant.
Wherein: a chimney 1 of a thermal power plant; a flue gas filter 2; a fan 3; a flue gas cooling water pipeline 4; a condensed water collecting tank 5; an alkali liquor storage tank 6, an aeration device 7, an alkali liquor circulating pump 8 and a spraying device 9.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
referring to fig. 1, the apparatus is shown in fig. 1 and is divided into the following units: the device comprises a flue gas filtering unit, a flue gas cooling and water lifting unit, a power unit and a carbon dioxide absorption unit. The large fan provides power to extract the exhaust gas of the chimney 1 of the thermal power plant, and the processes of filtering, water lifting and final fixation of carbon dioxide in the flue gas are completed, so that the purposes of one process and multiple purposes are realized.
A filtering unit: mainly consisting of a smoke filter 2. The residual fly ash in the exhaust gas of the chimney is intercepted by the filter, so that the guarantee is provided for subsequent products.
Flue gas cooling water lift unit: mainly comprises a flue gas cooling water pipeline 4 arranged in an air duct, a condensed water converging device and a condensed water collecting pool 5. After passing through the filtering unit, after the flue gas extracted by the fan 3 contacts with a cooling water pipeline arranged in the air duct, water vapor in the flue gas is condensed, collected by a condensed water converging device at the bottom of the air duct and finally converged into a condensed water collecting pool 5. The condensed water converging device has a certain gradient and can prevent the condensed water from flowing into the fan automatically. The condensed water in the condensed water collecting tank 5 can be recycled through the pump set, so that the consumption of water resources is reduced, and the cost is saved. And an overflow pipeline is designed at the top of the condensed water collecting tank and is directly discharged to the industrial wastewater collecting tank.
A power unit: mainly comprises a high-power fan. The power is provided by a fan, the flue gas of the chimney is extracted, filtered, cooled and water-extracted, and then the flue gas is blown into a carbon dioxide collecting pool with a high-concentration sodium hydroxide solution. The fan provides power for the whole process.
A carbon dioxide absorption unit: mainly comprises an alkali liquor storage tank 6, an aeration device 7, an alkali liquor circulating pump 8, a spraying device 9 and the like. The alkali liquor storage tank 6 stores the industrial sodium hydroxide solution with the concentration of 30 percent. Aeration devices are arranged at the periphery and the bottom of the alkali liquor storage tank 6. The designed position of the alkali liquor storage tank 6 when full of alkali liquor is lower than the fan, so that the alkali liquor is prevented from being poured into the fan. The flue gas that the fan was carried is blown into the alkali lye holding vessel through aeration equipment 7, and acidic oxides such as carbon dioxide, sulfur dioxide, nitrogen oxide in the flue gas are absorbed by sodium hydroxide solution and are fixed. And discharging the residual tail gas through an exhaust port at the upper part of the alkali liquor storage tank. The alkali liquor circulating pump 8 conveys the sodium hydroxide solution at the bottom of the alkali liquor to an exhaust port at the upper part of the alkali liquor storage tank, and the sodium hydroxide solution is sprayed into an exhaust pipeline through the spraying device 9. The spraying device consists of a plurality of stages of spraying pipelines which are staggered from top to bottom and from left to right. The sodium hydroxide liquid drops sprayed into the exhaust pipeline are mixed with the residual gas exhausted upwards through the exhaust pipeline in a counter-current mode, and the residual acidic oxides such as carbon dioxide and the like in the residual gas are absorbed, so that the purpose of thorough absorption is achieved. An alkali liquor feeding port is arranged at the upper part of the alkali liquor storage tank, and the alkali liquor is conveyed to the alkali liquor storage tank before starting. The lower part of the alkali liquor storage tank is provided with a discharge hole, and the alkali liquor after repeated absorption is conveyed to the next unit through the discharge hole for further purification treatment.
Method of operation
Before starting, the unit is in a running state, and smoke is always discharged from the chimney. The cooling water line should be flowed by circulating cooling water.
A starting step:
step1 the lye storage tank is filled with 30% NaOH solution, the NaOH level should be higher than all aeration devices.
step2, start the fan. And continuously absorbing the chimney flue gas for the whole system.
step3, starting the alkali liquor circulating pump to circulate the sodium hydroxide.
When the level of the condensed water tank is high, a reuse water pump is started to pump the condensed water tank to a low level in time.
A stopping step:
step1 when the pH of the solution in the lye storage tank drops to 12, the blower was stopped. Opening the discharge port to transfer the alkali liquor to the next-stage device for separation and purification.
step2, when the alkali liquid level is reduced to the upper part of the alkali liquid circulating pump, the alkali liquid circulating pump is stopped. And transferring all the alkali liquor to the next-stage treatment device.
After the alkali liquor is conveyed, new sodium hydroxide solution is injected again. Again following the start-up procedure.
Claims (8)
1. A flue gas carbon dioxide capture device of a thermal power plant is characterized by comprising a flue gas filtering unit, a flue gas cooling and water-lifting unit, a power unit and a carbon dioxide absorption unit; one end of the flue gas filtering unit is connected with a chimney (1) of a thermal power plant, the other end of the flue gas filtering unit is connected with the power unit, and the flue gas cooling and water lifting unit is arranged between the power unit and the flue gas filtering unit; the power unit is connected with the carbon dioxide absorption unit.
2. The flue gas carbon dioxide capture device of the thermal power plant of claim 1, characterized in that the flue gas filtering unit is a flue gas filter (2), and the flue gas filter is connected to the stack of the thermal power plant through a pipeline.
3. The flue gas carbon dioxide capture device of the thermal power plant according to claim 1, wherein the other end of the flue gas filtering unit is connected with the carbon dioxide absorption unit through a pipeline, and the pipelines of the carbon dioxide absorption unit and the flue gas filtering unit are provided with a power unit, and the power unit is a fan (3).
4. The flue gas carbon dioxide capture device of the thermal power plant according to claim 1, wherein the flue gas cooling water-lifting unit comprises a flue gas cooling water pipeline (4) and a condensed water collecting tank (5); the flue gas cooling water pipeline (4) is arranged on a pipeline between the power unit and the flue gas filtering unit, and the bottom of the pipeline where the flue gas cooling water pipeline (4) is located is connected with the condensed water collecting tank (5).
5. The flue gas carbon dioxide capture device of the thermal power plant according to claim 4, wherein the bottom of the pipeline where the flue gas cooling water pipeline (4) is located is slope-shaped to form a confluence structure.
6. The flue gas carbon dioxide capture device of the thermal power plant according to claim 1, wherein the carbon dioxide absorption unit comprises an alkali liquor storage tank (6), an aeration device (7), an alkali liquor circulating pump (8) and a spraying device (9); an inlet of the alkali liquor storage tank (6) is connected with the power unit through a pipeline, the aeration devices (7) are arranged on the side surface and the bottom of the alkali liquor storage tank (6), and the aeration devices (7) are connected with the pipeline of the inlet; the top of alkali lye holding vessel (6) is provided with the blast pipe, sets up spray set on the blast pipe, and spray set passes through pipe connection alkali lye holding vessel (6), sets up alkali lye circulating pump (8) between alkali lye holding vessel (6) and the spray set.
7. The flue gas carbon dioxide capture device of thermal power plant of claim 6, characterized in that the design position of the full lye level of the lye storage tank is lower than the power unit.
8. The flue gas carbon dioxide capture device of a thermal power plant of claim 6, characterized in that the lye storage tank stores industrial sodium hydroxide solution with concentration (30)% in the lye storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122548470.XU CN216677687U (en) | 2021-10-21 | 2021-10-21 | Flue gas carbon dioxide trapping apparatus of thermal power factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122548470.XU CN216677687U (en) | 2021-10-21 | 2021-10-21 | Flue gas carbon dioxide trapping apparatus of thermal power factory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216677687U true CN216677687U (en) | 2022-06-07 |
Family
ID=81830559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122548470.XU Active CN216677687U (en) | 2021-10-21 | 2021-10-21 | Flue gas carbon dioxide trapping apparatus of thermal power factory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216677687U (en) |
-
2021
- 2021-10-21 CN CN202122548470.XU patent/CN216677687U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100443412C (en) | Method for treating tail gas and waste water from rare earth finished ore acid method burning process | |
| CN103055675B (en) | Industrial smoke comprehensive treatment system and method based on advanced oxidation | |
| CN101532069B (en) | Device for recycling flue gas of steelmaking converters through full-dry purification and process thereof | |
| CN102350163B (en) | High-arsenic gold ore roasting flue gas treatment system and method for recovering arsenic and desulfurizing | |
| CN104874481A (en) | Wet type electrostatic dust collector for semidry method (CFB) waste water zero discharging | |
| CN204717660U (en) | Thermal power plant's hydrophobic development unit steam discharge retracting device | |
| WO2024082652A1 (en) | Tail gas treatment system in crushing and sorting process of scrapped power lithium battery | |
| CN102614775A (en) | Method for removing and recovering low concentration sulfur dioxide in industrial exhaust gas | |
| CN216677687U (en) | Flue gas carbon dioxide trapping apparatus of thermal power factory | |
| CN210772215U (en) | Smoke tower integrated smoke waste heat recovery device for waste incineration power plant | |
| CN210410191U (en) | Carbon black tail gas boiler flue gas takes off white system | |
| CN201684518U (en) | Tail gas treatment system of fuel cracking furnace | |
| CN218155574U (en) | Acidizing calcination flue gas processing system | |
| CN203556284U (en) | Flue gas cleaning, recycling and reusing system | |
| CN110894954A (en) | High-temperature tail gas purification and waste heat recovery system | |
| CN214914875U (en) | High-efficient deacidification device of msw incineration flue gas | |
| CN109432998A (en) | A kind of flue gas disappears white system and method | |
| CN210845774U (en) | Desulfurization and denitrification flue gas whitening system | |
| CN113357924A (en) | Energy-saving and water-saving solid-hazardous waste treatment system and method based on coupling carbon complementary collection | |
| CN201390760Y (en) | Gas flue absolute-dry type purification recovery utilization device of steel-making converter | |
| CN218901377U (en) | Flue gas desulfurization and denitrification device of anode furnace | |
| CN213790644U (en) | Flue gas sprays heat transfer and pollutant purification handles integration unit | |
| CN210332262U (en) | High-efficiency corrosion-resistant ultralow-emission desulfurization and denitrification device | |
| CN209865730U (en) | Wet flue gas desulfurization system for sintering machine | |
| CN213810698U (en) | High-efficient flue gas moisture recovery system that two flues were arranged |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |