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CN101934085A - Low-temperature plasma catalytic purification module - Google Patents

Low-temperature plasma catalytic purification module Download PDF

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Publication number
CN101934085A
CN101934085A CN2009100407638A CN200910040763A CN101934085A CN 101934085 A CN101934085 A CN 101934085A CN 2009100407638 A CN2009100407638 A CN 2009100407638A CN 200910040763 A CN200910040763 A CN 200910040763A CN 101934085 A CN101934085 A CN 101934085A
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CN
China
Prior art keywords
low
temperature plasma
purification module
catalytic purification
frame structure
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Granted
Application number
CN2009100407638A
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Chinese (zh)
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CN101934085B (en
Inventor
王宝柱
范洪波
赵卫兵
沈浩
郭奕文
向丰华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Yujie Environmental System Technology Co ltd
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YUJIE NEW MATERIAL CO Ltd DONGGUAN CITY
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Priority to CN2009100407638A priority Critical patent/CN101934085B/en
Publication of CN101934085A publication Critical patent/CN101934085A/en
Application granted granted Critical
Publication of CN101934085B publication Critical patent/CN101934085B/en
Expired - Fee Related legal-status Critical Current
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  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The invention relates to the technical field of air pollution purifying equipment, in particular to a low-temperature plasma catalytic purification module comprising an outer frame structure, a discharge needle support, a plurality of corona discharge needles and catalyst-coated polar plates, wherein the discharge needle support is arranged in the outer frame structure through an insulating support; the plurality of corona discharge needles are arranged on the discharge needle support; and the catalyst-coated polar plates are respectively arranged between every two neighboring corona discharge needles at intervals, and one ends of the catalyst-coated polar plates are connected with the outer frame structure. The low-temperature plasma catalytic purification module also comprises a high-voltage pulse power supply respectively and electrically connected with the discharge needle support and the outer frame structure. The low-temperature plasma catalytic purification module has the advantages of simple structure, low manufacturing cost, good air processing effect and infinite and repeated use and can greatly improve air quality.

Description

A kind of low-temperature plasma catalytic purification module
Technical field:
This utility model relates to the air cleaning facility technical field, especially refers to a kind of low-temperature plasma catalytic purification module.
Background technology:
The organic compound of effumability (VOCs) has multiple source in the atmosphere, it all has very big harm to health and natural environment, therefore, the method of the discharging of the organic compound (VOCs) of positive active research minimizing of people or inhibition effumability, or adopt adsorption method, reclaim these emissions, or be broken down into and be nontoxic chemical compound.The successful methods that has had at present some to handle volatile organic compound, as activated carbon granule, NACF, pure silicon molecular sieves etc. can adsorb effectively, reclaim these organic compound; Catalytic combustion decomposition of gaseous organic pollution is CO 2And H 2O etc. also can pollution abatement, but the technology of handling low concentration, big flow organic exhaust gas still fails to solve at all, adopting low temperature nonequilibrium plasma catalysis technique to carry out TREATMENT OF VOCs is the technology of rising in recent years, has solved the indeterminable problem of traditional method.
The source of foul gas mainly is links such as sewage disposal pumping station, activated sludge mixing, sludge dewatering, garbage disposal, part chemical industry synthesis flow, and the gas of generation has mental retardation degree, low characteristics such as smell, conventional method is difficult remove or cost too high.Raising along with people's standard of living, the public also strengthens day by day to the requirement that improves environmental quality, odor pollution has become current China town dweller and has complained one of the most intensive environmental problem, some developed countries have formulated relevant environmental protection law, the discharging of strict these gaseous contaminants of control.China also takes place the source to the municipal wastewater treatment plant stench as a main evaluation object, and has taked various measures to prevent malodorous diffusion, and the public is exactly an abnormal smells from the patient to the problem of being concerned about most in the wastewater treatment equipment running.Studies show that concerning the people, the importance of low concentration abnormal smells from the patient mainly is the mental pressure that they produced, and is not only the harm to human body, niff may cause anorexia, reduces amount of drinking water, weakens and breathes, and causes feeling sick, vomiting and psychological interference.When situation was serious, niff may make being wounded in one's self esteem of the people and the public, disturbed human communication, influenced construction investment, reduced the economic status of society, hindered development, and simultaneously, some odor compound is (as H 2S) toxic under the state of high concentration, may further cause more social problem.Because the composition of diffuse source foul smell is quite complicated in the sewerage, and mostly is partial uncontrollable discharge source, many times be the short time burst, be difficult to capture and collect, bring difficulty to improvement.Toluene industry actual treatment mainly contains methods such as charcoal absorption, membrane separation technique, thermal oxide, catalytic combustion at present, but because workshop discharging organic pollution has characteristics such as flow velocity is fast, flow is big, concentration is low, above technology is restricted in the application process of reality, therefore is necessary to study a kind of new organic exhaust gas improvement technology.
Lower temperature plasma technology is applied in air purification field, and multinomial patent is disclosed, low temperature plasma and catalyst synergistic purification technology are the technical methods of new development in recent years, solve the lower problem of simple use plasma for purification efficient preferably, and had the part technology to begin to apply for a patent.Most patented technologies, employing be parallel facial prickle-flat discharging structure, be fit to big flow use, but efficient is lower; Use spool formula discharging structure, reaction efficiency is higher, but it is less to handle air mass flow, is difficult to industrialization and uses.
The utility model content:
The purpose of this utility model is intended to overcome the deficiencies in the prior art, provides a kind of simple in structure, low cost of manufacture, the low-temperature plasma catalytic purification module that gas treatment is effective.
In order to achieve the above object, this utility model adopts following technical scheme:
A kind of low-temperature plasma catalytic purification module, it comprises frame structure, be located at spray point support in the frame structure by insulating support, be located at a plurality of corona discharge needles on the spray point support and be located at application catalyst pole plate between adjacent two corona discharge needles at interval; Described application catalyst pole plate one end is connected with frame structure; Also comprise a high-voltage pulse power source, described high-voltage pulse power source is electrically connected with spray point support and frame structure respectively.
The wherein said application catalyst pole plate of being located between adjacent two corona discharge needles is at least one, and application catalyst pole plate and spray point support out of plumb.
Two on wherein said application catalyst pole plate is the setting of " V " font.
The bottom of two application catalyst pole plates of " V " font setting of wherein said being connects by the air-flow flow disturbing cover.
The front end of wherein said air-flow flow disturbing cover is curved.
Wherein said corona discharge needle becomes equidistant setting with two application catalyst pole plates being located at about it.
Wherein said application catalyst pole plate is combined by a plurality of application catalyst dividing plates, forms the internal gas flow passage between adjacent two application catalyst dividing plates.
The housing of the wherein said frame structure that is connected with application catalyst pole plate one end is provided with additional discharge end.
The beneficial effects of the utility model are: this utility model mainly comprises frame structure, be located at spray point support in the frame structure by insulating support, be located at a plurality of corona discharge needles on the spray point support and be located at application catalyst pole plate between adjacent two corona discharge needles at interval; Described application catalyst pole plate one end is connected with frame structure; Comprise that also a described high-voltage pulse power source of high-voltage pulse power source is electrically connected with spray point support and frame structure respectively.This utility model is simple in structure firm, easy to operate, and the suitability is strong, organic, foul gas in capturing effectively and purify air.Main body realizes its purpose in the following way: 1, discharge process produces high level short wavelength ultraviolet, the organic foul gas of radiolysis; 2, produce a large amount of ozone, oxidation Decomposition Organic substance or the like in the discharge process.
Description of drawings:
Fig. 1 is this utility model overall structure sketch map;
Fig. 2 is an A place structure for amplifying sketch map among Fig. 1.
1-" V " discharging structure, 2-application catalyst pole plate, 3-application catalyst dividing plate, 4-internal gas flow passage, the 5-corona discharge needle, the 6-frame structure, 7-spray point support, the 8-insulating support, the 9-high-voltage pulse power source, 10-air-flow flow disturbing cover, 11-adds discharge end
The specific embodiment:
Below in conjunction with accompanying drawing this utility model is described further.
As shown in Figure 1 and Figure 2, the new a kind of low-temperature plasma catalytic purification module of this practicality, it comprises frame structure 6, be fixed at spray point support 7 in the frame structure 6 by insulating support 8, be located at a plurality of corona discharge needles 5 on the spray point support 7 and be located at interval application catalyst pole plate 2 between adjacent two corona discharge needles 5, the quantity of application catalyst pole plate 2 and arrangement angle can be carried out different settings according to the pollutant of air flow rate and processing are different; Described application catalyst pole plate 2 one ends are connected with the end face of frame structure 6; This utility model also comprises a high-voltage pulse power source 9, and described high-voltage pulse power source 9 is electrically connected with spray point support 7 and frame structure 6 respectively, forms effective electric field between application catalyst pole plate 2 and corona discharge needle 5.Frame structure 6 main other metal materials of aluminium alloy, rustless steel or process protection that use are made.
In this utility model, corona discharge needle 5 can select for use prickle or inert metal line to make, preferred rustless steel prickle in this utility model.In addition, the used power supply of this utility model is not limited to high-voltage pulse power source 9, and other also can as dc pulse superposition power supply and noninductive dc pulse superposition power supply.The used high-voltage pulse power source 9 of this utility model has the arc defencive function of jumping and sensitive regulatory function etc.; when situations such as arcing, short circuit occurring at this utility model; can in time play a protective role, the indication and after arcing, short-circuit conditions are eliminated of reporting to the police being provided, recover automatically.
The described application catalyst pole plate of being located between adjacent two corona discharge needles 52 is at least one, and application catalyst pole plate 2 and spray point support 7 out of plumb, its arrangement angle can be done different the setting according to the difference of air mass flow to be processed and processing pollutant.
The application catalyst pole plate of being located between adjacent two corona discharge needles 52 preferred two described in the utility model, these two application catalyst pole plates 2 generally are the setting of " V " font, and other set-up mode that meets the object of the invention certainly also can.
The bottom of two application catalyst pole plates 2 of " V " font setting of described being connects by air-flow flow disturbing cover 10, and the front end of air-flow flow disturbing cover 10 is curved; In addition, corona discharge needle 5 is equidistant setting with two application catalyst pole plates 2 being located at about it, and about 5 two application catalyst pole plates of corona discharge needle 2 form V-type discharging structure 1.Air-flow enters this utility model from frame structure 6 bottoms, and out-of-date when air flow stream, in air-flow flow disturbing cover 10 guiding V-type discharging structures 1 zone, and under the effect of air-flow flow disturbing cover 10, air-flow will form a large amount of eddy current, improve the reaction probability effectively.
Described application catalyst pole plate 2 is combined by a plurality of application catalyst dividing plates 3, forms internal gas flow passage 4 between adjacent two application catalyst dividing plates 3, and such being provided with mainly is in order to increase the contact area with air-flow, to improve reaction efficiency.Certainly application catalyst pole plate 2 can also adopt other structure, as metal beehive material, foam metal material or other planar structure with good breathability and bigger serface of being made of conductive material.In a word, the material that helps increasing with the air-flow contact area all meets requirement of the present utility model.
The housing of the described frame structure 6 that is connected with application catalyst pole plate 2 one ends is provided with additional discharge end 11, can further increase the power level of the low temperature plasma volume of individual module, has strengthened disposal ability of the present utility model.
Certainly, the above technical scheme is a preferred embodiments of the present utility model, be not to limit this utility model practical range, so all equivalences of doing according to the described structure of this utility model claim, feature and principle change or modify, and are included in this utility model claim.

Claims (8)

1. low-temperature plasma catalytic purification module, it is characterized in that: it comprises frame structure (6), be located at spray point support (7) in the frame structure (6) by insulating support (8), be located at spray point support (7) and go up a plurality of corona discharge needles (5) and be located at application catalyst pole plate (2) between adjacent two corona discharge needles (5) at interval; Described application catalyst pole plate (2) one ends are connected with frame structure (6); Also comprise a high-voltage pulse power source (9), described high-voltage pulse power source (9) is electrically connected with spray point support (7) and frame structure (6) respectively.
2. a kind of low-temperature plasma catalytic purification module according to claim 1, it is characterized in that: the described application catalyst pole plate of being located between adjacent two corona discharge needles (5) (2) is at least one, and application catalyst pole plate (2) and spray point support (7) out of plumb.
3. a kind of low-temperature plasma catalytic purification module according to claim 2, it is characterized in that: described application catalyst pole plate (2) is two, is the setting of " V " font.
4. a kind of low-temperature plasma catalytic purification module according to claim 3 is characterized in that: the bottom of two application catalyst pole plates (2) of " V " font setting of described being connects by air-flow flow disturbing cover (10).
5. a kind of low-temperature plasma catalytic purification module according to claim 4, it is characterized in that: the front end of described air-flow flow disturbing cover (10) is curved.
6. a kind of low-temperature plasma catalytic purification module according to claim 4 is characterized in that: described corona discharge needle (5) becomes equidistant setting with two application catalyst pole plates (2) of being located at about it.
7. a kind of low-temperature plasma catalytic purification module according to claim 4, it is characterized in that: described application catalyst pole plate (2) is formed by a plurality of application catalyst dividing plates (3) stack combinations, forms internal gas flow passage (4) between adjacent two application catalyst dividing plates (3).
8. according to any described a kind of low-temperature plasma catalytic purification module of claim 1 to 7, it is characterized in that: the housing of the described frame structure (6) that is connected with application catalyst pole plate (2) one ends is provided with additional discharge end (11).
CN2009100407638A 2009-07-01 2009-07-01 Low-temperature plasma catalytic purification module Expired - Fee Related CN101934085B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100407638A CN101934085B (en) 2009-07-01 2009-07-01 Low-temperature plasma catalytic purification module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100407638A CN101934085B (en) 2009-07-01 2009-07-01 Low-temperature plasma catalytic purification module

Publications (2)

Publication Number Publication Date
CN101934085A true CN101934085A (en) 2011-01-05
CN101934085B CN101934085B (en) 2012-11-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2449810Y (en) * 2000-09-13 2001-09-26 莱州市活性碳纤维厂 Multifunctional plasma enhanced catalytic purifier
WO2005021160A1 (en) * 2003-08-29 2005-03-10 Daikin Industries, Ltd. Gas treating apparatus
CN1678355A (en) * 2002-09-05 2005-10-05 山英建设株式会社 Air purifier
CN1927408A (en) * 2006-09-26 2007-03-14 西安交通大学 Indoor air purification method by using medium for blocking off low-temperature plasma generated by discharge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2449810Y (en) * 2000-09-13 2001-09-26 莱州市活性碳纤维厂 Multifunctional plasma enhanced catalytic purifier
CN1678355A (en) * 2002-09-05 2005-10-05 山英建设株式会社 Air purifier
WO2005021160A1 (en) * 2003-08-29 2005-03-10 Daikin Industries, Ltd. Gas treating apparatus
CN1927408A (en) * 2006-09-26 2007-03-14 西安交通大学 Indoor air purification method by using medium for blocking off low-temperature plasma generated by discharge

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Address after: Jiangning District of Nanjing City, Jiangsu province 211100 streets moling Road No. 12 mo Zhou

Patentee after: Nanjing Yujie Environmental System Technology Co.,Ltd.

Address before: Dongguan City, Guangdong province 523000 Dongguan town of Changping City Huang Mai yuan Cun Zhu Yuan Gong Ye Qu Yu Jie new material Co. Ltd.

Patentee before: DONGGUAN UNICLEAR NEW-MATERIAL Co.,Ltd.

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Granted publication date: 20121107