CN216092962U - CO discharged by extremely low secondary aerosol2Trapping device - Google Patents

CO discharged by extremely low secondary aerosol2Trapping device Download PDF

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Publication number
CN216092962U
CN216092962U CN202121948137.1U CN202121948137U CN216092962U CN 216092962 U CN216092962 U CN 216092962U CN 202121948137 U CN202121948137 U CN 202121948137U CN 216092962 U CN216092962 U CN 216092962U
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tower
aerosol
spraying
stage
absorption
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CN202121948137.1U
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刘含笑
崔盈
王少权
斯洪良
周号
郭柳成
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Zhejiang Feida Environmental Science and Technology Co Ltd
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Zhejiang Feida Environmental Science and Technology Co Ltd
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    • 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
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

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Abstract

The utility model provides CO with extremely low secondary aerosol emission2The trapping device comprises a pretreatment device, an absorption tower and a regeneration tower, wherein the absorption tower comprises a tower body, and an absorbent rich liquid outflow device, an air inlet, a multi-stage CO (carbon monoxide) device and a multi-stage CO outflow device which are arranged on the tower body from bottom to top in sequence2Spray absorbing layer, aerosol removing device and exhaustThe output end of the pretreatment device is connected with the gas inlet of the absorption tower and contains CO2Through multi-stage CO2Spraying absorption layer for absorbing and trapping CO2Collecting aerosol particles in the flue gas by an aerosol removing device, and discharging the clean flue gas through an exhaust port, wherein the multi-stage CO is2Spraying liquid of the spraying absorption layer absorbs CO in the flue gas2The latter is rich liquid and is conveyed to the regeneration tower for analysis through the absorbent rich liquid outflow device. The device can ensure that the emission of aerosol is less than or equal to 1ppm and can improve CO2The absorption and trapping efficiency is improved, the absorbent aerosol can be reused after being compounded, and the utilization rate of the absorbent is effectively improved.

Description

CO discharged by extremely low secondary aerosol2Trapping device
[ technical field ] A method for producing a semiconductor device
The utility model relates to CO2The technical field of treatment, in particular to CO with extremely low secondary aerosol emission2A trapping device.
[ background of the utility model ]
CO2As the most predominant greenhouse gas, it causes many environmental problems, and therefore CO2The capture technology has become the focus of attention in the world, and the existing CO2The trapping device only adopts the spraying device to trap CO2And the absorbent is not recycled, the aerosol removal efficiency is low, the environment is polluted, a large amount of absorbent is wasted, the economy is influenced, and the CO with extremely low secondary aerosol emission is provided2A trapping device.
[ Utility model ] content
The utility model aims to solve the problems in the prior art and provides CO with extremely low secondary aerosol emission2The trapping device can ensure high efficiency of removing the aerosol and improve the utilization rate of the absorbent.
In order to achieve the purpose, the utility model provides CO with extremely low secondary aerosol emission2The trapping device comprises a pretreatment device, an absorption tower and a regeneration tower, wherein the absorption tower comprises a tower body, and an absorbent rich liquid outflow device, an air inlet, a multi-stage CO (carbon monoxide) device and a multi-stage CO outflow device which are arranged on the tower body from bottom to top in sequence2Spray absorbing layer, aerosol removing device and exhaustThe output end of the pretreatment device is connected with the gas inlet of the absorption tower and contains CO2Through multi-stage CO2Spraying absorption layer for absorbing and trapping CO2Collecting aerosol particles in the flue gas by an aerosol removing device, and discharging the clean flue gas through an exhaust port, wherein the multi-stage CO is2Spraying liquid of the spraying absorption layer absorbs CO in the flue gas2The latter is rich liquid, and the absorbent rich liquid outflow device is used for conveying the rich liquid discharged from the absorption tower to the regeneration tower for analysis.
Preferably, the absorbent rich liquid outflow device conveys the rich liquid to the bottom of the regeneration tower, the rich liquid and the lean liquid at the bottom of the regeneration tower are subjected to heat exchange and temperature rise and then enter the middle part of the regeneration tower, and the desorbed absorbent flows out from the bottom of the regeneration tower, becomes the lean liquid and is then injected back to the absorption tower through the lean liquid conveying device.
Preferably, the absorption tower further comprises a multi-stage cooling device, the multi-stage cooling device is a three-stage cooling device, and the multi-stage CO is discharged from the absorption tower2The spraying absorption layer is four-stage CO2Spray absorbing layer, adjacent two poles of CO2A primary cooling device is arranged between the spraying absorption layers.
Preferably, the aerosol removal device comprises a first continuous spraying and condensing device, a cooling device and an electric defogging device which are arranged in sequence from bottom to top, wherein a flocculating agent is contained in cooling water sprayed by the first continuous spraying and condensing device and is used for condensing small-particle-size particles escaping from the absorbent into clusters, and the cooling device is a heat exchanger.
Preferably, the electric defogging device is a conductive glass fiber reinforced plastic wet-type electric defogging device, and an intermittent spraying layer is arranged at the top of the electric defogging device.
Preferably, the electric defogging device comprises conductive glass fiber reinforced plastic polar plates and a cathode system, wherein the conductive glass fiber reinforced plastic polar plates are arranged in parallel, a gas channel is formed in the conductive glass fiber reinforced plastic polar plates, the cathode system comprises a plurality of cathode wires which are respectively arranged in the gas channel of the conductive glass fiber reinforced plastic polar plates, and a plurality of discharging spikes are uniformly distributed on the cathode wires.
Preferably, the pretreatment device is a spray tower, and the spray tower is used for spraying water and alkali liquor and removing dust and acid gas in the flue gas.
The utility model has the beneficial effects that:
the very low secondary aerosol emission of CO of the present invention2The trapping device can ensure that the emission of aerosol is less than or equal to 1ppm, and improve CO2The absorption and trapping efficiency is improved, and the absorbent aerosol trapped by the aerosol removal device can be reused after being compounded, so that the utilization rate of the absorbent is effectively improved.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a very low secondary aerosol emission CO of the present invention2The structure schematic diagram of the trapping device;
FIG. 2 is a very low secondary aerosol emission CO of the present invention2The internal structure of the absorption tower of the trapping device is shown schematically;
FIG. 3 is a very low secondary aerosol emission CO of the present invention2The structure schematic diagram of the electric defogging device of the trapping device;
FIG. 4 is a very low secondary aerosol emission CO of the present invention2The section of the conductive glass fiber reinforced plastic polar plate of the trapping device is schematic.
[ detailed description ] embodiments
Referring to fig. 1-2, the present invention is directed to a very low secondary aerosol emission of CO2The trapping device comprises a pretreatment device 1, an absorption tower 2 and a regeneration tower 3, wherein the absorption tower 2 comprises a tower body, and an absorbent rich liquid outflow device 21, an air inlet 22 and a plurality of stages of CO arranged on the tower body from bottom to top in sequence2A spray absorption layer 23, an aerosol removing device 25 and an exhaust port 26, wherein the output end of the pretreatment device 1 is connected with the air inlet 22 of the absorption tower 2 and contains CO2Through multi-stage CO2The spraying absorption layer 23 absorbs and traps CO2Then the aerosol particles in the flue gas are collected by the aerosol removing device 25, and the clean flue gas is discharged through the exhaust port 26, wherein the multi-stage CO is2The spraying liquid of the spraying absorption layer 23 absorbs CO in the flue gas2The latter is rich liquid, the absorptionThe rich solvent outflow device 21 is used to send the rich solvent discharged from the absorption tower 2 to the regeneration tower 3 for analysis.
Further, the absorbent rich liquid outflow device 21 conveys the rich liquid to the bottom of the regeneration tower 3, the rich liquid exchanges heat with the lean liquid at the bottom of the regeneration tower 3, the temperature of the rich liquid is raised, the rich liquid enters the middle of the regeneration tower 3, the desorbed absorbent flows out from the bottom of the regeneration tower 3 to become the lean liquid, and the lean liquid is injected back to the absorption tower 2 through the lean liquid conveying device.
Further, the absorption tower 2 further comprises a multi-stage cooling device 24, the multi-stage cooling device 24 is a three-stage cooling device, and the multi-stage CO is carried out2The spray absorption layer 23 is four-stage CO2Spray absorbing layer, adjacent two poles of CO2A primary cooling device is arranged between the spraying absorption layers.
Further, the aerosol removing device 25 comprises a first continuous spraying and condensing device 251, a cooling device 252 and an electric defogging device 253 which are sequentially arranged from bottom to top, wherein the cooling device 252 is a heat exchanger, a flocculating agent is contained in cooling water sprayed by the first continuous spraying and condensing device 251 and the intermittent spraying layer 254, and small-particle-size particles escaping from the absorbent are condensed into clusters and gradually absorb water to be enlarged after being condensed and cooled, so that efficient removal in a subsequent electric defogger is realized, and polar lines are arranged in the electric defogging device, so that efficient trapping of aerosol particles can be realized, and corona sealing is effectively avoided.
Further, referring to fig. 3 and 4, the electric defogging device 253 is a conductive glass fiber reinforced plastic wet-type electric defogging device, and an intermittent spraying layer 254 is disposed on the top of the electric defogging device 253. In this embodiment, electric defogging device 253 includes electrically conductive glass steel polar plate 2531 and negative pole system, electrically conductive glass steel polar plate 2531 arranges side by side, and inside has the gas passage that the cross-section is the hexagonal shape, negative pole system includes that a plurality of sets up the negative pole line 2532 in electrically conductive glass steel polar plate 2531's gas passage respectively, the equipartition has a plurality of point thorn that discharges on the negative pole line 2532, and the point thorn is many and near apart from the polar plate of electrically conductive glass steel polar plate, can provide stronger discharge current, avoids thin aerosol granule to cause the corona to seal.
Further, the pretreatment device 1 is a spray tower, and the spray tower is used for spraying water and alkali liquor and removing dust and acid gas in the flue gas.
The working process of the utility model is as follows:
the utility model relates to CO with extremely low secondary aerosol emission2A trapping device containing CO during operation2After large particle impurities and acid gases are removed by the pretreatment device 1, the flue gas passes through multi-stage CO2The spraying absorption layer 23 absorbs and traps CO2After the aerosol particles in the flue gas are collected by the aerosol removing device 25, the clean flue gas is discharged through the exhaust port 26. Wherein, by four stages of CO2The spraying absorption layer can absorb more than 99% of CO in the flue gas2Absorption and trapping, spraying amount of absorbent and CO in flue gas2The molar ratio of the amount is more than 1.5:1, and the excessively sprayed absorbent and the secondary aerosol formed by the absorbent are efficiently removed through an aerosol removing device 25 at the upper end of the tower body. The three-stage cooling device can ensure CO2The adsorption reaction is controlled in a proper temperature range, and the temperature range is generally 40-50 ℃.
Multistage CO2The spraying liquid of the spraying absorption layer 23 absorbs CO in the flue gas2The later form is rich liquid (50-55 ℃), the rich liquid flows out from the bottom of the absorption tower 2, enters the bottom of the regeneration tower 3, exchanges heat with lean liquid, increases the temperature, enters the middle part (85-95 ℃) of the regeneration tower 3, the desorbed absorbent flows out from the bottom of the regeneration tower, is changed into lean liquid, is injected back to the absorption tower 2, and CO is desorbed2Storage may be by compressed storage.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims (7)

1. CO discharged by extremely low secondary aerosol2A trapping device, characterized in that: comprises a pretreatment device (1), an absorption tower (2) and a regeneration tower (3), wherein the absorption tower (2) comprises a tower body, and an absorbent rich liquid outflow device (21), an air inlet (22) and a plurality of stages of CO arranged on the tower body from bottom to top in sequence2A spray absorbing layer (23), an aerosol removal device (25) and an exhaust port (26), the spray absorbing layerThe output end of the pretreatment device (1) is connected with the air inlet (22) of the absorption tower (2) and contains CO2Through multi-stage CO2The spraying absorption layer (23) absorbs and traps CO2Then the aerosol particles in the flue gas are collected by an aerosol removing device (25), the clean flue gas is discharged through an exhaust port (26), and the multi-stage CO is used for removing CO2The spraying liquid of the spraying absorption layer (23) absorbs CO in the flue gas2The latter is a rich liquid, and the absorbent rich liquid outflow device (21) is used for conveying the rich liquid discharged from the absorption tower (2) to the regeneration tower (3) for analysis.
2. A very low secondary aerosol emission of CO as claimed in claim 12A trapping device, characterized in that: the absorbent rich liquid outflow device (21) conveys the rich liquid to the bottom of the regeneration tower (3), the rich liquid and the barren liquid at the bottom of the regeneration tower (3) exchange heat and rise in temperature and then enter the middle of the regeneration tower (3), and the desorbed absorbent flows out from the bottom of the regeneration tower (3) and is changed into barren liquid which is then injected into the absorption tower (2) through the barren liquid conveying device.
3. A very low secondary aerosol emission of CO as claimed in claim 12A trapping device, characterized in that: the absorption tower (2) further comprises a multi-stage cooling device (24), the multi-stage cooling device (24) is a three-stage cooling device, and the multi-stage CO is2The spray absorption layer (23) is four-stage CO2Spray absorbing layer, adjacent two poles of CO2A primary cooling device is arranged between the spraying absorption layers.
4. A very low secondary aerosol emission of CO as claimed in claim 12A trapping device, characterized in that: the aerosol removing device (25) comprises a first continuous spraying and condensing device (251), a cooling device (252) and an electric defogging device (253) which are sequentially arranged from bottom to top, wherein a flocculating agent is contained in cooling water sprayed by the first continuous spraying and condensing device (251) and used for condensing small-particle-size particles escaping from an absorbent into clusters, and the cooling device (252) is a heat exchanger.
5. A process as claimed in claim 4Very low secondary aerosol emission of CO2A trapping device, characterized in that: the electric defogging device (253) is a conductive glass fiber reinforced plastic wet-type electric defogging device, and an intermittent spraying layer (254) is arranged at the top of the electric defogging device (253).
6. A very low secondary aerosol emission CO as claimed in claim 52A trapping device, characterized in that: the electric defogging device (253) comprises a conductive glass fiber reinforced plastic polar plate (2531) and a cathode system, wherein the conductive glass fiber reinforced plastic polar plate (2531) is arranged in parallel, a gas channel is formed in the conductive glass fiber reinforced plastic polar plate, the cathode system comprises a plurality of cathode wires (2532) which are arranged in the gas channel of the conductive glass fiber reinforced plastic polar plate (2531) respectively, and a plurality of discharging spikes are uniformly distributed on the cathode wires (2532).
7. A very low secondary aerosol emission of CO as claimed in claim 12A trapping device, characterized in that: the pretreatment device (1) is a spray tower, and the spray tower is used for spraying water and alkali liquor and removing dust and acid gas in flue gas.
CN202121948137.1U 2021-08-19 2021-08-19 CO discharged by extremely low secondary aerosol2Trapping device Active CN216092962U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121948137.1U CN216092962U (en) 2021-08-19 2021-08-19 CO discharged by extremely low secondary aerosol2Trapping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121948137.1U CN216092962U (en) 2021-08-19 2021-08-19 CO discharged by extremely low secondary aerosol2Trapping device

Publications (1)

Publication Number Publication Date
CN216092962U true CN216092962U (en) 2022-03-22

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Application Number Title Priority Date Filing Date
CN202121948137.1U Active CN216092962U (en) 2021-08-19 2021-08-19 CO discharged by extremely low secondary aerosol2Trapping device

Country Status (1)

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CN (1) CN216092962U (en)

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