CN113877386A - Organic waste gas purifying equipment with low-temperature plasma synergistic adsorption function - Google Patents

Organic waste gas purifying equipment with low-temperature plasma synergistic adsorption function Download PDF

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Publication number
CN113877386A
CN113877386A CN202111254431.7A CN202111254431A CN113877386A CN 113877386 A CN113877386 A CN 113877386A CN 202111254431 A CN202111254431 A CN 202111254431A CN 113877386 A CN113877386 A CN 113877386A
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China
Prior art keywords
air
chamber
plasma
low
waste gas
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Pending
Application number
CN202111254431.7A
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Chinese (zh)
Inventor
钱黎明
袁良谋
陆晓飞
倪国华
杨春海
臧春之
李勇
卢明磊
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Anhui Guoke Environmental Protection Equipment Manufacturing Co ltd
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Anhui Guoke Environmental Protection Equipment Manufacturing Co ltd
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Application filed by Anhui Guoke Environmental Protection Equipment Manufacturing Co ltd filed Critical Anhui Guoke Environmental Protection Equipment Manufacturing Co ltd
Priority to CN202111254431.7A priority Critical patent/CN113877386A/en
Publication of CN113877386A publication Critical patent/CN113877386A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/32Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/80Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/818Employing electrical discharges or the generation of a plasma

Abstract

The invention discloses organic waste gas purification equipment with a low-temperature plasma synergistic adsorption function, which comprises a mixed air purification chamber, wherein an air inlet is formed in the mixed air purification chamber, a centrifugal wind wheel is rotatably installed in the mixed air purification chamber, air enters the air inlet along the axial direction of the centrifugal wind wheel, a plasma generation device comprises an ionization chamber, a plasma discharge module and a plasma discharge power supply, the plasma discharge module is installed in the ionization chamber, the plasma discharge module is electrically connected with the plasma discharge power supply to generate low-temperature plasma, the low-temperature plasma of a plasma injection system is conveyed into the mixed air purification chamber and is mixed with the axial air inlet, the adsorption chamber is communicated with the mixed air purification chamber, an active carbon adsorption module is arranged in the adsorption chamber, and an air outlet is formed in the adsorption chamber. The organic waste gas purifying equipment can improve the purifying effect and purifying efficiency of organic waste gas.

Description

Organic waste gas purifying equipment with low-temperature plasma synergistic adsorption function
Technical Field
The invention relates to the technical field of organic waste gas treatment, in particular to organic waste gas purification equipment with a low-temperature plasma synergistic adsorption function.
Background
Most industrial organic waste gas has the characteristics of low concentration, large air volume, multiple components and the like. The traditional treatment methods comprise an absorption method, an adsorption method, a condensation method and a biological method, and the traditional treatment process can not meet the treatment requirements.
In recent years, a low temperature plasma technology has attracted increasing attention, and plasma is called a fourth species existing form other than solid, liquid and gas, and is composed of electrons, ions, radicals and neutral particles, and the whole remains electrically neutral. In the low-temperature plasma, a large number of high-energy electrons and active particles generated by the high-energy electrons are generated, and then a series of complex physical and chemical reactions are initiated to convert complex macromolecular pollutants into simple micromolecular substances or convert toxic and harmful substances into nontoxic and harmless or low-toxic and low-harmful substances, so that the pollutants are degraded and removed. The low-temperature plasma technology has the characteristics of simple process, short treatment flow, less investment, small occupied area, high removal rate, low operation cost, wide application range and the like.
The existing equipment for treating organic waste gas by using low-temperature plasma has the problem that the residence reaction time of the waste gas is uncontrollable, the contact time of the waste gas and the low-temperature plasma is short or the mixture is not uniform, so that the waste gas cannot completely react with the low-temperature plasma, the waste gas treatment effect is poor, the efficiency is low, and the secondary pollution is caused.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides organic waste gas purification equipment with a low-temperature plasma synergistic adsorption function.
The invention provides organic waste gas purification equipment with a low-temperature plasma synergistic adsorption function, which comprises a mixed air purification chamber, a plasma generation device, a plasma injection system and an adsorption chamber, wherein the mixed air purification chamber is provided with a gas inlet and a gas outlet;
the mixed air purification chamber is provided with an air inlet, a centrifugal wind wheel is rotatably arranged in the mixed air purification chamber, the air inlet is opposite to the centrifugal wind wheel, so that air enters the air inlet along the axial direction of the centrifugal wind wheel, and the centrifugal wind wheel is connected with a driving device;
the plasma generating device comprises an ionization chamber, a plasma discharging module and a plasma discharging power supply, wherein the plasma discharging module is arranged in the ionization chamber and is electrically connected with the plasma discharging power supply to generate low-temperature plasma;
the plasma injection system is used for communicating the ionization chamber with the air mixing purification chamber, and conveying the low-temperature plasma in the ionization chamber into the air mixing purification chamber and mixing the low-temperature plasma with the axial inlet air;
the adsorption chamber is communicated with the air mixing purification chamber, an activated carbon adsorption module is arranged in the adsorption chamber, and an air outlet is arranged on the adsorption chamber.
Preferably, the plasma injection system comprises a fan, an air suction pipe and an air injection pipe, wherein the air inlet end of the fan is communicated with the ionization chamber through the air suction pipe, and the air outlet end of the fan is communicated with the air mixing purification chamber through the air injection pipe.
Preferably, the gas injection pipe is coaxially sleeved in a rotating shaft of the centrifugal wind wheel, one end of the gas injection pipe, which is positioned in the ionization chamber, is communicated with a gas distribution disc, the gas distribution disc is communicated with a plurality of gas distribution pipes, and the gas distribution pipes are provided with uniform gas distribution holes.
Preferably, the air distribution pipe is parallel to the axial direction of the centrifugal wind wheel, and the front end of the air distribution pipe is closed.
Preferably, the activated carbon adsorption modules are arranged in a zigzag manner in the adsorption chamber.
Preferably, an air-equalizing baffle is arranged in the adsorption chamber and is positioned between the activated carbon adsorption module and the air-mixing purification chamber, and uniform air holes are formed in the air-equalizing baffle.
Preferably, the driving device comprises a motor and a gear box, and an output shaft of the motor is in transmission connection with a rotating shaft of the centrifugal wind wheel through the gear box.
Preferably, the plasma generating device further comprises an electrical cabinet, and the plasma discharge power supply is installed in the electrical cabinet.
Preferably, the organic waste gas purifying apparatus further comprises a fixing box, and the fan and the driving device are installed in the fixing box.
Preferably, the air mixing purification chamber is in a volute shape.
Has the advantages that:
in the invention, the centrifugal wind wheel is arranged in the mixed air purification chamber of the organic waste gas purification equipment, the organic waste gas and the low-temperature plasma are guided to be uniformly mixed for reaction through the rotation of the centrifugal wind wheel, and the reaction time of the waste gas can be controlled by controlling the rotating speed, so that the purification effect and the purification efficiency of the organic waste gas can be improved.
Drawings
Fig. 1 is a cross-sectional top view of an organic waste gas purifying apparatus with a low-temperature plasma synergistic adsorption function proposed in this embodiment;
FIG. 2 is a sectional rear view of an organic exhaust gas purifying apparatus in an embodiment;
FIG. 3 is a perspective view of the centrifugal wind wheel, the air distribution plate and the air distribution pipe in the embodiment;
fig. 4 is a cross-sectional view of fig. 3.
Detailed Description
Referring to fig. 1 to 4, fig. 1 is a cross-sectional top view of an organic exhaust gas purifying device with a low-temperature plasma synergistic adsorption function provided in this embodiment, fig. 2 is a cross-sectional rear view of the organic exhaust gas purifying device, fig. 3 is a perspective view of a centrifugal wind wheel, an air distribution disc and an air distribution pipe, and fig. 4 is a cross-sectional view of fig. 3.
The organic waste gas purification equipment with the low-temperature plasma synergistic adsorption function comprises a mixed air purification chamber 1, a plasma generation device, a plasma injection system and an adsorption chamber 2.
Be equipped with air intake 3 on the casing of muddy wind clean room 1, mix the interior rotation of wind clean room 1 and install centrifugal wind wheel 4, air intake 3 is relative with centrifugal wind wheel 4, makes air intake 3 along the 4 axial air intakes of centrifugal wind wheel, and centrifugal wind wheel 4 is connected with the drive arrangement that can drive its pivoted, and drive arrangement specifically includes motor 5 and gear box 6, and motor 5 output shaft passes through gear box 6 and is connected with the pivot transmission of centrifugal wind wheel 4.
The plasma generating device comprises an ionization chamber 7, a plasma discharging module 8 and a plasma discharging power supply 9, wherein the plasma discharging module 8 is installed in the ionization chamber 7, and the plasma discharging module 8 is electrically connected with the plasma discharging power supply 9 to generate low-temperature plasma.
The plasma injection system communicates the ionization chamber 7 with the air mixing purification chamber 1, and is used for conveying low-temperature plasma in the ionization chamber 7 into the air mixing purification chamber 1 and mixing with axial inlet air. Specifically, the plasma injection system comprises a fan 10, an air suction pipe 11 and an air injection pipe 12, wherein the air inlet end of the fan 10 is communicated with the ionization chamber 7 through the air suction pipe 11, and the air outlet end of the fan 10 is communicated with the air mixing purification chamber 1 through the air injection pipe 12.
The adsorption chamber 2 is communicated with the air mixing purification chamber 1, an activated carbon adsorption module 13 is arranged in the adsorption chamber 2, an air outlet 14 is arranged on the adsorption chamber 2, and the activated carbon adsorption module 13 is used for filtering organic waste gas malodorous gas molecules which are not removed by low-temperature plasma in the part of air flow discharged to the air outlet 14 from the air mixing purification chamber 1.
According to the organic waste gas purification equipment of the embodiment, when the equipment works, organic waste gas enters the mixed air purification chamber 1 from the air inlet 3, the plasma discharge module 8 discharges air in the ionization chamber 7 to generate low-temperature plasma, and the low-temperature plasma is injected into the mixed air purification chamber 1 through the plasma injection system to be mixed with the organic waste gas, so that the purpose of purifying the organic waste gas is achieved.
When mixing, the driving device drives the centrifugal wind wheel 4 to rotate, the centrifugal wind wheel 4 enables the organic waste gas and the low-temperature plasma which enter axially to flow along the radial direction through centrifugal force, the organic waste gas and the low-temperature plasma are enabled to fully contact and react, and purification of the organic waste gas is accelerated. Meanwhile, the centrifugal wind wheel 4 guides the mixed air flow to flow into the adsorption chamber 2 along the inner wall of the air mixing purification chamber 1, so that the waste gas is filtered by the activated carbon adsorption module 13 and then discharged from the air outlet 14, and the organic waste gas treatment is completed.
In this embodiment, this organic waste gas purification equipment makes organic waste gas and plasma misce bene through the effect of centrifugal wind wheel 4 guide air current, still can control the time of waste gas reaction through control rotational speed to can improve organic waste gas's purifying effect, and make purification efficiency improve.
In a further embodiment, in order to better mix the low-temperature plasma with the axial intake air of the centrifugal wind wheel 4, it is preferable that the air injection pipe 12 is coaxially sleeved in the rotating shaft of the centrifugal wind wheel 4, one end of the air injection pipe 12 located in the ionization chamber 7 is communicated with an air distribution disc 15, the air distribution disc 15 is communicated with a plurality of air distribution pipes 16, and the air distribution pipes 16 are provided with uniform air distribution holes 17.
According to the gas injection pipe 12 which is coaxially arranged with the centrifugal wind wheel 4, the gas distribution disc 15 and the gas distribution pipe 16 which are communicated with the gas injection pipe 12, the low-temperature plasma can be uniformly conveyed to the middle position of the centrifugal wind wheel 4, so that the organic waste gas entering along the axial direction of the centrifugal wind wheel 4 is uniformly mixed with the low-temperature plasma, and the reaction efficiency and the reaction effect of the organic waste gas and the plasma can be further improved.
In this example, the air distribution pipe 16 is preferably axially parallel to the centrifugal wind wheel 4, and the front end of the air distribution pipe 16 is closed. Therefore, organic waste gas flowing along the axial direction of the centrifugal wind wheel 4 can be prevented from entering the gas distribution pipe 16, and the organic waste gas flow and the low-temperature plasma flow are prevented from colliding.
In a further embodiment, in order to improve the adsorption efficiency of the activated carbon adsorption modules 13 in the adsorption chamber 2 of the organic waste gas purification apparatus, the activated carbon adsorption modules 13 are arranged in a zigzag manner in the adsorption chamber 2. The activated carbon adsorption modules 13 arranged in a zigzag shape have a larger filtering area, so that the filtering and adsorbing efficiency of the exhaust gas can be improved.
In a further embodiment, an air-equalizing baffle 18 is further installed in the adsorption chamber 2, the air-equalizing baffle 18 is located between the activated carbon adsorption module 13 and the air-mixing purification chamber 1, and uniform air holes are formed in the air-equalizing baffle 18.
The air flow can enter the adsorption chamber 2 more uniformly through the air-equalizing baffle 18 and contact with the activated carbon adsorption module 13, so that the utilization rate and the filtering effect of the activated carbon adsorption module 13 are improved.
In some embodiments, the plasma generating device of the organic waste gas purifying apparatus further comprises an electrical cabinet 19, and the plasma discharge power supply 9 is installed in the electrical cabinet 19. The plasma discharge power supply 9 is separately installed through the electrical cabinet 19, so that the plasma discharge power supply 9 is separated from the plasma discharge module 8, and the safety of the equipment can be improved.
In some embodiments, the organic waste gas purifying apparatus further includes a fixing box 20, the fixing box 20 is installed at one side of the ionization chamber 7, and the blower 10 of the plasma injection system and the motor 5 and the gear box 6 of the driving device may be installed in the fixing box 20.
In the present embodiment, in order to make the centrifugal wind wheel 4 better guide the air flow to the adsorption chamber 2, the mixed air purification chamber 1 can be provided in a volute shape, i.e. similar to the structure of the casing of the centrifugal fan 10.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. An organic waste gas purifying device with a low-temperature plasma synergistic adsorption function is characterized by comprising a mixed air purifying chamber (1), a plasma generating device, a plasma injection system and an adsorption chamber (2);
an air inlet (3) is formed in the air mixing purification chamber (1), a centrifugal wind wheel (4) is rotatably mounted in the air mixing purification chamber (1), the air inlet (3) is opposite to the centrifugal wind wheel (4), so that air is axially fed into the air inlet (3) along the centrifugal wind wheel (4), and the centrifugal wind wheel (4) is connected with a driving device;
the plasma generating device comprises an ionization chamber (7), a plasma discharging module (8) and a plasma discharging power supply (9), wherein the plasma discharging module (8) is installed in the ionization chamber (7), and the plasma discharging module (8) is electrically connected with the plasma discharging power supply (9) to generate low-temperature plasma;
the plasma injection system is used for communicating the ionization chamber (7) with the air mixing purification chamber (1) and conveying the low-temperature plasma in the ionization chamber (7) into the air mixing purification chamber (1) and mixing the low-temperature plasma with the axial inlet air;
the adsorption chamber (2) is communicated with the air mixing purification chamber (1), an activated carbon adsorption module (13) is arranged in the adsorption chamber (2), and an air outlet (14) is arranged on the adsorption chamber (2).
2. The organic waste gas purification equipment with the low-temperature plasma synergistic adsorption function according to claim 1, wherein the plasma injection system comprises a fan (10), an air suction pipe (11) and an air injection pipe (12), the air inlet end of the fan (10) is communicated with the ionization chamber (7) through the air suction pipe (11), and the air outlet end of the fan (10) is communicated with the mixed air purification chamber (1) through the air injection pipe (12).
3. The organic waste gas purification equipment with the low-temperature plasma synergistic adsorption function according to claim 2, wherein the gas injection pipe (12) is coaxially sleeved in the rotating shaft of the centrifugal wind wheel (4), one end of the gas injection pipe (12) positioned in the ionization chamber (7) is communicated with a gas distribution disc (15), the gas distribution disc (15) is communicated with a plurality of gas distribution pipes (16), and the gas distribution pipes (16) are provided with uniform gas distribution holes (17).
4. The organic waste gas purification equipment with the low-temperature plasma synergistic adsorption function according to claim 3, wherein the gas distribution pipe (16) is parallel to the axial direction of the centrifugal wind wheel (4), and the front end of the gas distribution pipe (16) is closed.
5. The organic waste gas purification equipment with the low-temperature plasma synergistic adsorption function according to claim 1, wherein the activated carbon adsorption modules (13) are arranged in a zigzag manner in the adsorption chamber (2).
6. The organic waste gas purification equipment with the low-temperature plasma synergistic adsorption function according to claim 1, wherein an air-equalizing baffle (18) is installed in the adsorption chamber (2), the air-equalizing baffle (18) is positioned between the activated carbon adsorption module (13) and the air-mixing purification chamber (1), and uniform air holes are formed in the air-equalizing baffle (18).
7. The organic waste gas purification equipment with the low-temperature plasma synergistic adsorption function according to claim 1, wherein the driving device comprises a motor (5) and a gear box (6), and an output shaft of the motor (5) is in transmission connection with a rotating shaft of the centrifugal wind wheel (4) through the gear box (6).
8. The organic waste gas purification equipment with the low-temperature plasma synergistic adsorption function according to any one of claims 1 to 7, wherein the plasma generation device further comprises an electric cabinet (19), and the plasma discharge power supply (9) is installed in the electric cabinet (19).
9. The organic waste gas purification device with the low-temperature plasma synergistic adsorption function according to any one of claims 1 to 7, characterized in that the organic waste gas purification device further comprises a fixed box (20), and the fan (10) and the driving device are installed in the fixed box (20).
10. The organic waste gas purifying apparatus with low-temperature plasma synergistic adsorption function according to any one of claims 1 to 7, characterized in that the air-mixed purifying chamber (1) is in a volute shape.
CN202111254431.7A 2021-10-27 2021-10-27 Organic waste gas purifying equipment with low-temperature plasma synergistic adsorption function Pending CN113877386A (en)

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CN202111254431.7A CN113877386A (en) 2021-10-27 2021-10-27 Organic waste gas purifying equipment with low-temperature plasma synergistic adsorption function

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Application Number Priority Date Filing Date Title
CN202111254431.7A CN113877386A (en) 2021-10-27 2021-10-27 Organic waste gas purifying equipment with low-temperature plasma synergistic adsorption function

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CN113877386A true CN113877386A (en) 2022-01-04

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005037412A1 (en) * 2003-10-21 2005-04-28 Osaka Industrial Promotion Organization Method of treating exhaust gas and treating apparatus
CN206535372U (en) * 2017-03-07 2017-10-03 浙江澳蓝环保科技有限公司 New waste gas filtration and adsorption treatment device
CN107250549A (en) * 2015-03-16 2017-10-13 瓦特燃料电池公司 The centrifugal blower system mixed with internal gas and the gas-phase chemical reaction device including it
CN207042116U (en) * 2017-07-19 2018-02-27 上海履诚环境科技有限公司 A kind of processing unit for printing waste gas
CN108771988A (en) * 2018-06-21 2018-11-09 陈文� A kind of computational fluid dynamics mixer
CN212523604U (en) * 2020-06-08 2021-02-12 上海环境保护有限公司 Novel low temperature plasma exhaust-gas treatment equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005037412A1 (en) * 2003-10-21 2005-04-28 Osaka Industrial Promotion Organization Method of treating exhaust gas and treating apparatus
CN107250549A (en) * 2015-03-16 2017-10-13 瓦特燃料电池公司 The centrifugal blower system mixed with internal gas and the gas-phase chemical reaction device including it
CN206535372U (en) * 2017-03-07 2017-10-03 浙江澳蓝环保科技有限公司 New waste gas filtration and adsorption treatment device
CN207042116U (en) * 2017-07-19 2018-02-27 上海履诚环境科技有限公司 A kind of processing unit for printing waste gas
CN108771988A (en) * 2018-06-21 2018-11-09 陈文� A kind of computational fluid dynamics mixer
CN212523604U (en) * 2020-06-08 2021-02-12 上海环境保护有限公司 Novel low temperature plasma exhaust-gas treatment equipment

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Application publication date: 20220104

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