CN104084011A - Low-temperature plasma waste gas purifying system - Google Patents
Low-temperature plasma waste gas purifying system Download PDFInfo
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- CN104084011A CN104084011A CN201410337000.0A CN201410337000A CN104084011A CN 104084011 A CN104084011 A CN 104084011A CN 201410337000 A CN201410337000 A CN 201410337000A CN 104084011 A CN104084011 A CN 104084011A
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Abstract
The invention relates to a low-temperature plasma waste gas purifying system. The low-temperature plasma waste gas purifying system comprises a box body as well as a controller and a display arranged on the box body, wherein the box body is internally provided with an air inlet, a gas-liquid filtering net, at least two processing chambers and an air outlet from left to right, and a gas re-mixing chamber is arranged between two adjacent processing chambers; the processing chambers are internally provided with multiple stainless steel tubes which are parallel to one another, a mace is arranged in each stainless steel tube in a hanging manner, the stainless steel tubes and the mace are all arranged along the running direction of airflow, the mace and the inner walls of the stainless steel tubes are not contacted, and the mace and the stainless steel tubes are respectively connected with positive and negative poles of high voltage. Compared with the prior art, the low-temperature plasma waste gas purifying system provided by the invention has the advantages that high-energy electrons are generated in the stainless steel tubes under the accelerating action of an electric field; when average energies of the electrons exceed a target governing object molecule chemical bond property, a molecule bond is ruptured, a purpose of eliminating a gaseous pollutant is achieved, contaminant molecules are easy to efficiently decompose through multi-level processing, the processing energy consumption is low, and secondary pollution is avoided.
Description
Technical field
The present invention relates to waste gas purification apparatus technical field, particularly a kind of low temperature plasma waste gas cleaning system.
Background technology
Along with the development of industrial economy, the volatility waste gas that the industries such as chemical industry, oil and coating produce is increasing, and these waste gas have not only brought serious pollution to environment, also the health of human body have been produced to great harm.Process now these waste gas, conventionally adopt combustion method, oxidizing process etc., but these methods all exist expense higher and easily cause the defects such as secondary pollution.At present, lower temperature plasma technology is remarkable aspect gaseous contaminant improvement, low temperature plasma be continue solid-state, liquid, material the 4th state after gaseous state, when applied voltage reaches the discharge voltage of gas, gas is just breakdown, generation comprises electronics, various ions, atom and free radical are at interior mixture, although electron temperature is very high in discharge process, but heavy particle temperature is very low, whole system presents low-temperature condition, so be called low temperature plasma, the basic principle that adopts lower temperature plasma technology to carry out waste gas purification is: under the acceleration of electric field, produce high energy electron, when high energy electron average energy surpasses target improvement thing molecular chemistry bond energy, molecular scission, reach the object of eliminating gaseous contaminant, this technology is easy to make contaminant molecule efficiently to decompose, it has become current research forward position.But because plasma is a cross discipline comprising on the basic subjects such as discharge physics, discharge chemistry, Chemical Reaction Engineering, electronic technology and material science, therefore, this technology is not yet ripe at present, and the cost of at present a lot of low temperature plasma waste gas cleaning devices is high and still can produce secondary pollution.
In order to address the above problem, now propose a kind ofly can avoid secondary pollution and the low multistage low temperature plasma waste gas cleaning system of cost.
Summary of the invention
The present invention has overcome above-mentioned the deficiencies in the prior art, has proposed a kind ofly can avoid secondary pollution and the low multistage low temperature plasma waste gas cleaning system of cost.
Technical scheme of the present invention is achieved in that
A kind of low temperature plasma waste gas cleaning system, comprise: casing and be fixedly installed on controller and the display on casing, in casing, be provided with successively from left to right air inlet, gas-liquid filter net, at least two process chambers and air outlet, between two adjacent process chambers, be provided with gas mixing chamber again; In process chamber, be provided with the many stainless-steel pipes that are parallel to each other, in every stainless-steel pipe, be installed with a mace that is covered with pointed tooth, stainless-steel pipe and mace are all the direction of travel settings along air-flow, and mace does not contact with the inwall of stainless-steel pipe and both connect respectively the both positive and negative polarity of high-tension electricity.Between mace and stainless-steel pipe, do not contact to provide arcing distance; Mace connects anodal, stainless-steel pipe connects negative pole, mace is realized point discharge, in stainless-steel pipe, produce electric field and produce corona phenomenon, under the acceleration of electric field, produce high energy electron, when high energy electron average energy surpasses target improvement thing molecular chemistry bond energy, molecular scission, reaches the object of eliminating gaseous contaminant.
Concrete purification process is: pollute waste gas and enter casing by air inlet, first waste gas need the pretreatment through high temperature gas-liquid filter net, filter out the particle in waste gas, after pretreated waste gas, enter process chamber, high energy electron in low temperature plasma in process chamber, free radical isoreactivity particle and waste gas generation effect, molecule in waste gas is decomposed within the extremely short time, produce ozone and water, final carbon dioxide and the water of producing, waste gas after process chamber enters gas mixing chamber again, gas again mixing chamber mixes the waste gas itself having in not degradable before waste gas and casing, make exhaust gas concentration even, for entering into the second process chamber, prepare, through gas again the waste gas of mixing chamber enter into the second process chamber and further decompose, avoid secondary pollution, finally carbon dioxide and water discharge air outlet are entered into atmosphere.
As preferably, in process chamber, be provided with the parallel and symmetrical stainless steel steelframe in two sides and be arranged on the parallel and symmetrical two sides stainless-steel sheet between the stainless steel steelframe of two sides, parallel between stainless steel steelframe and stainless-steel sheet; Stainless steel steelframe comprises steelframe frame and is arranged on many stainless steel steel bars in steelframe frame; Every stainless-steel pipe is vertically through two sides stainless-steel sheet; All extend at the two ends of described mace galvanized pipe, a part for galvanized pipe is exposed outside stainless-steel pipe, galvanized pipe the exposed termination in stainless-steel pipe outside be fixedly connected on and on stainless steel steel bar, make mace and be arranged on the unsettled axis through stainless-steel pipe of galvanized pipe on mace; Between steelframe frame and stainless-steel sheet, by ceramic insulator, be connected and fixed.Every stainless-steel pipe is vertically through two sides stainless-steel sheet, in order to fixing stainless-steel pipe, makes on the other hand to enter in stainless-steel pipe in exhaust gas centralized on the one hand; The two ends of mace are extended with galvanized pipe, and the low life-span of galvanized pipe cost is long; Galvanized pipe the exposed termination in stainless-steel pipe outside be fixedly connected on and on stainless steel steel bar, make mace and be arranged on the unsettled axis through stainless-steel pipe of galvanized pipe on mace, for mace provides arcing distance; Ceramic insulator is in order to separate both positive and negative polarity and to make stainless-steel pipe relative with stainless-steel sheet fixing.
As preferably, the contact portion of stainless-steel pipe and stainless-steel sheet is by being welded and fixed.Make like this stainless-steel pipe on stainless-steel sheet, be difficult for sliding.
As preferably, described galvanized pipe is bolted to connection on stainless steel steel bar.
As preferably, the two ends of described ceramic insulator are all bolted on stainless steel steelframe and stainless-steel sheet.
As preferably, described gas-liquid filter net is formed by stacking by 5～16 layers of stainless steel cloth, and gas-liquid filter net is equipped with in gas-liquid filter net framework, and gas-liquid filter net framework coordinates and is arranged in casing by being arranged on gas-liquid filter net slide rail in casing.Because gas-liquid filter net need to filter out granule dust, service time one is long, leaves more dust and easily causes stopping up soon at gas-liquid filter net, and gas-liquid filter net slide rail is set, has facilitated unpicking and washing and changing of gas-liquid filter net.
As preferably, between the process chamber adjacent with air outlet and air outlet, be provided with the activated charcoal strainer of honeycomb bulk, activated charcoal strainer is arranged in activated charcoal strainer framework, and activated charcoal strainer framework is arranged in casing by the activated charcoal strainer slide rail being arranged in casing.Activated charcoal strainer, in order to the harmful substance in further absorption waste gas, has realized further purification, activated charcoal strainer slide rail is set and has facilitated unpicking and washing and changing of activated charcoal strainer.
As preferably, at described air outlet place, be provided with air exhauster.Described air exhauster is in order to suck waste gas air inlet and purified gas is entered to atmosphere.
Adopted the invention has the beneficial effects as follows of technique scheme:
A kind ofly can avoid secondary pollution and the low multistage low temperature plasma waste gas cleaning system of cost.In the present invention, pollute waste gas and enter casing by air inlet, first waste gas need the pretreatment through high temperature gas-liquid filter net, filter out the particle in waste gas, after pretreated waste gas, enter process chamber, high energy electron in low temperature plasma in process chamber, free radical isoreactivity particle and waste gas generation effect, molecule in waste gas is decomposed within the extremely short time, produce ozone and water, final carbon dioxide and the water of producing, waste gas after process chamber enters gas mixing chamber again, gas again mixing chamber mixes the waste gas itself having in not degradable before waste gas and casing, make exhaust gas concentration even, for entering into next process chamber, prepare, through gas again the waste gas of mixing chamber enter into next process chamber and further decompose, avoid secondary pollution, finally carbon dioxide and water discharge air outlet are entered into atmosphere, the activated charcoal strainer being provided with at air outlet place, in order to the harmful substance in further absorption waste gas, has realized further purification, specifically, low-temperature plasma degradation pollutant basic principle is under the acceleration of electric field, produce high energy electron, when electronics average energy surpasses target improvement thing molecular chemistry bond energy, molecular scission, reach the object of eliminating gaseous contaminant, this technology is easy to make the efficient decomposition of contaminant molecule and processes energy consumption low.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present invention;
Fig. 2 is internal structure schematic diagram of the present invention;
Fig. 3 is the structural representation of stainless steel steelframe;
Fig. 4 is the assembling schematic diagram of stainless steel steelframe, stainless-steel sheet, stainless-steel pipe;
Fig. 5 is the cut-away view on Fig. 4 top view.
The specific embodiment
The specific embodiment of the present invention is as follows:
Embodiment: a kind of low temperature plasma waste gas cleaning system, as shown in Figure 1-2, comprise casing 1 and be fixedly installed on controller 2 and the display 3 on casing 1, in casing 1, be provided with successively from left to right air inlet 4, gas-liquid filter net 5, coagulation chamber 6, two stage treatment chamber 7 and air outlet 8, at air outlet, 8 places are provided with air exhauster 9, are provided with gas mixing chamber 10 again between coagulation chamber 6 and two stage treatment chamber 7; In coagulation chamber 6 and two stage treatment chamber 7, be provided with the many stainless-steel pipes that are parallel to each other 11, in every stainless-steel pipe 11, be installed with a mace 12 that is covered with pointed tooth, stainless-steel pipe 11 is all the direction of travel settings along air-flow with mace 12, mace 12 does not contact with the inwall of stainless-steel pipe 11 and both connect respectively the both positive and negative polarity of high-tension electricity, and the distance between mace 12 and the inwall of stainless-steel pipe 11 is 4.5cm.
Specifically, in coagulation chamber 6 and two stage treatment chamber 7, be provided with the parallel and symmetrical stainless steel steelframe 13 in two sides and be arranged on the parallel and symmetrical two sides stainless-steel sheet 14 between two sides stainless steel steelframe 13, parallel between stainless steel steelframe 13 and stainless-steel sheet 14; As shown in Figure 3, stainless steel steelframe 13 comprises steelframe frame 15 and is arranged on many stainless steel steel bars 16 in steelframe frame 15; As shown in Fig. 4-5, every stainless-steel pipe 11 is vertical through two sides stainless-steel sheet 14; All extend at the two ends of described mace 12 galvanized pipe 17, a part for galvanized pipe 17 is exposed outside stainless-steel pipe 11,17 exposed terminations in stainless-steel pipe 11 outsides of galvanized pipe are fixedly connected on stainless steel steel bar 16 and make mace 12 and the unsettled axis through stainless-steel pipe 11 of galvanized pipe 17 being arranged on mace 12, and mace 12 is 4.5cm with the distance of stainless-steel pipe 11 inwalls; Fixing by ceramic insulator 18 between steelframe frame 15 and stainless-steel sheet 14; Described stainless-steel pipe 11 and the contact portion of stainless-steel sheet 14 are by being welded and fixed; Described galvanized pipe 17 is bolted to connection on stainless steel steel bar 16; The two ends of described ceramic insulator 18 are all bolted on stainless steel steelframe 13 and stainless-steel sheet 14.
Gas-liquid filter net 5 is formed by stacking by 8 layers of stainless steel cloth, and gas-liquid filter net 5 is equipped with in gas-liquid filter net framework (not shown), and gas-liquid filter net framework coordinates and is arranged in casing 1 by being arranged on gas-liquid filter net slide rail 20 in casing 1; Between the two stage treatment chamber 7 adjacent with air outlet 8 and air outlet 8, be provided with the activated charcoal strainer 21 of honeycomb bulk, activated charcoal strainer 21 is arranged in activated charcoal strainer framework (not shown), and activated charcoal strainer framework is arranged in casing 1 by the activated charcoal strainer slide rail 23 being arranged in casing 1.In described coagulation chamber 6 and two stage treatment chamber 7, be provided with electrode slide rail 24 in order to realize whole dismounting and the replacing such as stainless steel steelframe 13, stainless-steel sheet 14, stainless-steel pipe 11.
The concrete course of work is, controller 2 is connected with casing 1 is inner with display 3, open controller 2, pollute waste gas and enter casing 1 by air inlet 4, first waste gas need the pretreatment through high temperature gas-liquid filter net 5, filter out the particle in waste gas, after pretreated waste gas, enter coagulation chamber 6, high energy electron in low temperature plasma in coagulation chamber 6, free radical isoreactivity particle and waste gas generation effect, molecule in waste gas is decomposed within the extremely short time, produce ozone and water, final carbon dioxide and the water of producing, waste gas after process chamber enters gas mixing chamber 10 again, gas again mixing chamber 10 mixes not degradable before waste gas and the interior waste gas having of casing 1 itself, make exhaust gas concentration even, for entering into two stage treatment chamber 7, prepare, through gas again the waste gas of mixing chamber 10 enter into two stage treatment chamber 7 and further decompose, avoid secondary pollution, finally carbon dioxide and water discharge air outlet 8 are entered into atmosphere, the activated charcoal strainer 21 being provided with at air outlet 8 places, in order to the harmful substance in further absorption waste gas, has realized further purification.
Claims (8)
1. a low temperature plasma waste gas cleaning system, comprise casing and be fixedly installed on controller and the display on casing, it is characterized in that: in casing, be provided with successively from left to right air inlet, gas-liquid filter net, at least two process chambers and air outlet, between two adjacent process chambers, be provided with gas mixing chamber again; In process chamber, be provided with the many stainless-steel pipes that are parallel to each other, in every stainless-steel pipe, be installed with a mace that is covered with pointed tooth, stainless-steel pipe and mace are all the direction of travel settings along air-flow, and mace does not contact with the inwall of stainless-steel pipe and both connect respectively the both positive and negative polarity of high-tension electricity.
2. a kind of low temperature plasma waste gas cleaning system according to claim 1, it is characterized in that: in process chamber, be provided with two parallel and symmetrical stainless steel steelframes and be arranged on two the parallel and symmetrical stainless-steel sheets between two stainless steel steelframes, parallel between stainless steel steelframe and stainless-steel sheet; Stainless steel steelframe comprises steelframe frame and is arranged on many stainless steel steel bars in steelframe frame; Every stainless-steel pipe is vertically through two stainless-steel sheets; All extend at the two ends of described mace galvanized pipe, a part for galvanized pipe is exposed outside stainless-steel pipe, galvanized pipe the exposed termination in stainless-steel pipe outside be fixedly connected on and on stainless steel steel bar, make mace and be arranged on the unsettled axis through stainless-steel pipe of galvanized pipe on mace; Between steelframe frame and stainless-steel sheet, by ceramic insulator, be connected and fixed.
3. a kind of low temperature plasma waste gas cleaning system according to claim 2, is characterized in that: described stainless-steel pipe and the contact portion of stainless-steel sheet are fixed by welding manner.
4. a kind of low temperature plasma waste gas cleaning system according to claim 2, is characterized in that: described galvanized pipe is bolted to connection on stainless steel steel bar.
5. a kind of low temperature plasma waste gas cleaning system according to claim 2, is characterized in that: the two ends of described ceramic insulator are bolted on respectively on stainless steel steelframe and stainless-steel sheet.
6. a kind of low temperature plasma waste gas cleaning system according to claim 1, it is characterized in that: described gas-liquid filter net is formed by stacking by 5～16 layers of stainless steel cloth, gas-liquid filter net is equipped with in gas-liquid filter net framework, and gas-liquid filter net framework coordinates and is arranged in casing by being arranged on gas-liquid filter net slide rail in casing.
7. a kind of low temperature plasma waste gas cleaning system according to claim 1, it is characterized in that: the activated charcoal strainer that is provided with honeycomb bulk between the process chamber adjacent with air outlet and air outlet, activated charcoal strainer is arranged in activated charcoal strainer framework, and activated charcoal strainer framework is arranged in casing by the activated charcoal strainer slide rail being arranged in casing.
8. a kind of low temperature plasma waste gas cleaning system according to claim 1, is characterized in that: at described air outlet place, be provided with air exhauster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410337000.0A CN104084011A (en) | 2014-07-15 | 2014-07-15 | Low-temperature plasma waste gas purifying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410337000.0A CN104084011A (en) | 2014-07-15 | 2014-07-15 | Low-temperature plasma waste gas purifying system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104722180A (en) * | 2015-03-03 | 2015-06-24 | 宁波东方盛大环保科技有限公司 | Plasma waste gas purifying equipment |
| CN106582222A (en) * | 2017-02-14 | 2017-04-26 | 太仓联洲机械设备有限公司 | Low-temperature plasma filter |
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2014
- 2014-07-15 CN CN201410337000.0A patent/CN104084011A/en active Pending
Patent Citations (8)
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| JPH1033937A (en) * | 1996-07-25 | 1998-02-10 | Mitsubishi Heavy Ind Ltd | Multi-step type reaction apparatus for treating waste gas |
| CN202206642U (en) * | 2011-09-06 | 2012-04-25 | 蒋建平 | Low temperature plasma processing device with corona discharge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104722180A (en) * | 2015-03-03 | 2015-06-24 | 宁波东方盛大环保科技有限公司 | Plasma waste gas purifying equipment |
| CN106582222A (en) * | 2017-02-14 | 2017-04-26 | 太仓联洲机械设备有限公司 | Low-temperature plasma filter |
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Application publication date: 20141008 |