CN211936380U - Device for treating VOCs (volatile organic compounds) by using pulse corona and catalyst - Google Patents
Device for treating VOCs (volatile organic compounds) by using pulse corona and catalyst Download PDFInfo
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- CN211936380U CN211936380U CN202020093301.4U CN202020093301U CN211936380U CN 211936380 U CN211936380 U CN 211936380U CN 202020093301 U CN202020093301 U CN 202020093301U CN 211936380 U CN211936380 U CN 211936380U
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Abstract
A pulsed corona co-catalyst treatment device for VOCs comprises a pulsed corona box, a catalyst box and a catalyst box, wherein the left side of the front end of the pulsed corona box is provided with a square opening matched with the catalyst box; the pulse corona box is formed by longitudinally superposing three single metal boxes with the same shape and structure; the single metal box is provided with an opening A on the front side face of the square opening, and a vertically arranged wiring board I, a wiring board II, a grounding electrode plate I and a grounding electrode plate II are arranged in the single metal box; an even number of copper electrodes are arranged on the first wiring board and the second wiring board; the catalytic box is arranged in the square opening and is attached to the pulse corona box; an opening B is formed in the rear side face of the catalytic box, the opening B is sealed by a baffle plate partition plate A which is vertically arranged to form an accommodating cavity, and at least one baffle plate partition plate B which is vertically arranged is installed in the accommodating cavity; the baffle plate A and the baffle plate B are provided with a plurality of through holes all over the surface. The device has good treatment effect and low energy consumption, and can effectively reduce the generation amount of byproducts generated in the treatment process.
Description
Technical Field
The utility model belongs to the technical field of VOCs's processing, concretely relates to pulse corona is catalyst processing VOCs device in coordination.
Background
At present, Volatile Organic Compounds (VOCs) become airborne dust, SO2、NOXFollowed by another major contaminant. In the traditional treatment technology, a combustion method, an adsorption method, a condensation method and the like are mostly adopted, the combustion method is easy to pollute the environment, the adsorption method is not ideal in treatment effect and low in efficiency, the condensation method is high in energy consumption, and in order to overcome the defects in the technology, a low-temperature plasma method is developed by professionals. The low-temperature plasma has the advantages of high efficiency, quickness, low energy consumption and the like when purifying and treating the waste gas with low concentration and large air quantity, but the low-temperature plasma technology can generate a plurality of byproducts including gaseous intermediate organic matters (such as O) when degrading VOCs (volatile organic compounds)3And equal NOX) And solid aerosols, and the like.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a pulse corona is catalyst treatment VOCs device in coordination, the device treatment effect is good, the energy consumption is low, and can effectively reduce the formation volume of the accessory substance that produces in the processing procedure.
In order to achieve the purpose, the utility model provides a device for treating VOCs by using pulse corona and catalyst, which comprises a catalytic box and a pulse corona box;
a square opening matched with the catalytic box is formed in the left side of the front end of the pulse corona box; the pulse corona box is formed by longitudinally superposing three single metal boxes with the same shape and structure; the single metal box is provided with an opening A on the front side face of the square opening, and a vertically arranged wiring board I, a wiring board II, a grounding electrode plate I and a grounding electrode plate II are arranged in the single metal box; the left side surface and the right side surface of the first wiring board are respectively provided with an even number of copper electrodes, the first wiring board is made of insulating materials, is positioned in the middle of the square opening and extends in the front-back direction, the rear end of the first wiring board is fixedly connected with the rear end plate of the single metal box, and the front end of the first wiring board extends to a position close to the square opening; the second grounding electrode plate is positioned at the right end of the square opening, the front end of the second grounding electrode plate is connected with the rear end of the side end plate in the middle of the single metal box, the rear end of the second grounding electrode plate extends towards the rear end plate of the single metal box, and a gas passing channel is reserved between the second grounding electrode plate and the rear end plate of the single metal box; the wiring board II is made of an insulating material and is arranged on the inner side of the right end plate of the single metal box in a fitting mode, an even number of copper electrodes are arranged on the inner side face of the wiring board II, and the grounding copper electrode plate I is arranged on the inner side of the left end plate of the single metal box in a fitting mode; the rear end of the single metal box is provided with an air port B and an air port A which are respectively positioned on the upper cover plate and the lower cover plate on the left side of the wiring board I, and the front end of the single metal box is provided with an air port C and an air port D which are respectively positioned on the upper cover plate and the lower cover plate on the right side of the grounding electrode plate II; after the three monomer metal boxes are longitudinally overlapped, a gas port A on the lower monomer metal box is used as a total gas inlet of the pulse corona box, a gas port B and a gas port D on the lower monomer metal box are both sealed by a plugging plate, a gas port D on the middle monomer metal box is communicated with a gas port C on the lower monomer metal box, a gas port C and a gas port A on the middle monomer metal box are both sealed by a plugging plate, a gas port A on the upper monomer metal box is communicated with a gas port B on the middle monomer metal box, a gas port C on the upper monomer metal box is used as a total gas outlet of the pulse corona box, and a gas port B and a gas port D on the upper monomer metal box are both sealed by a; the first grounding electrode plate and the second grounding electrode plate are grounded through the single metal box; the copper electrode is connected with an external high-voltage narrow pulse power supply through a wire through hole arranged on the single metal box;
the catalytic box is arranged in the square opening and is attached to the pulse corona box; the rear side surface of the catalytic box is provided with an opening B, the opening B is sealed by a baffle plate A which is vertically arranged to form an accommodating cavity, at least one baffle plate B which is vertically arranged and extends in the front-back direction is arranged in the accommodating cavity, and the baffle plate B divides the accommodating cavity into a plurality of cavity spaces; the baffle plate A and the baffle plate B are provided with a plurality of through holes all over the surface.
Furthermore, in order to facilitate assembly, disassembly and transportation, the right side surface of the catalysis box is provided with a magnetic attraction back plate in a fitting manner, and is fixedly connected with the pulse corona box in a suction manner through the magnetic attraction back plate; the single metal boxes on the upper side and the middle part, and the middle part and the lower side are fixedly connected through sheet magnets in an attracting mode.
Further, in order to enable gas to pass through smoothly, an arc-shaped transition plate is further arranged in the single metal box, the arc-shaped transition plate is vertically arranged and is arranged close to the rear end plate of the single metal box, one end of the arc-shaped transition plate is connected with the first wiring board, the other end of the arc-shaped transition plate is connected with the right side plate of the single metal box, and the concave surface faces to the front side.
Furthermore, the copper electrode is in a cone shape, the tip end of the copper electrode is arranged away from the wiring board one or two places of the wiring board, and a plurality of hollow holes are distributed on the cone surface; the spacing between adjacent copper electrodes is the same. The arrangement of the hollow holes can form a plurality of electrodes with small curvature radius, so that a plurality of corona regions can be formed conveniently, and the problems of small corona regions and non-uniform electron current density in the traditional needle plate type pulse corona method are solved.
Preferably, the one-piece metal case is made of ferritic stainless steel.
The utility model discloses in, a plurality of acceptor spaces that set up in the catalysis case can load multiple catalyst according to the different situation, and the setting of multiple catalyst can have the enrichment effect to VOCs, can be great improvement the concentration of VOCs in the catalysis case to the effect and the efficiency of handling VOCs have been improved. The monomer metal box is provided with opening A in square open-ended leading flank to can be through opening A and the inside intercommunication of baffling board baffle A on the catalysis case with the catalysis case, like this, the gas that gets into in the monomer metal box can be through the inner chamber of catalysis case, thereby can be convenient for utilize the catalyst to handle VOCs. The middle part and the right end of the single metal box are respectively provided with a first wiring board and a second wiring board, and copper electrodes are arranged on the first wiring board and the second wiring board respectively, so that corona discharge generated by applying pulse voltage can be facilitated. During corona discharge, electrons in the pulsed electric field collide with neutral molecules or atoms for ionization, resulting in an "electron avalanche" phenomenon. Electrons diffuse around at a much greater rate than the migration of ions, while the positive ions that stay in place accumulate. Due to the increase of local electron energy of an electric field and the continuous occurrence of new electron avalanches, the generated low-temperature plasma can activate lattice oxygen in the catalyst to generate a series of synergistic reactions such as electron holes, local heat effects and the like, so that the retention time and collision probability of VOCs in the reactor are increased, and the reaction energy requirement of the catalyst is reduced; in addition, the plasma has a large amount of micro-discharge between the catalysts, and can activate the catalysts and generate heat to release VOCs, so that a special and cyclic storage-discharge process is formed, and the aim of thoroughly decomposing the VOCs is fulfilled. The baffle plates A and B can promote the formation of turbulence, so that the problems of non-uniform electron current density and small discharge corona area in the needle plate type pulse corona method can be solved by utilizing the formed turbulence and the hollowed copper electrode; meanwhile, the catalyst is activated by utilizing a series of synergistic reactions of the enrichment effect of the catalyst on VOCs and electron holes, local heat effect and the like generated by activating lattice oxygen in the catalyst by low-temperature plasma, so that the retention time and collision probability of the VOCs are increased, and a cyclic storage-discharge process is formed; the device improves the service life of the catalyst in a geometric mode by using a multi-section reaction system, and avoids the problems of overlarge catalyst consumption, excessive intermediate products and the like in a one-section system. The device can combine together catalyst and faller formula pulse corona method, has not only improved the treatment effect to VOCs, can also improve treatment effeciency. Through the arrangement of the wiring board I and the grounding electrode plate II, an S-shaped air passing channel can be formed inside the box body of the single metal box, and the S-shaped air passing channel can delay the passing time of VOCs to be processed in the box body, so that the processing effect and the processing efficiency of the VOCs can be further improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a single metal box according to the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic structural view of a catalytic box of the present invention;
FIG. 5 is a schematic structural diagram of a copper electrode according to the present invention;
FIG. 6 is a schematic structural view of the middle plugging cover of the present invention;
fig. 7 is a schematic view of the assembly of the first wiring board or the second wiring board and the copper electrode in the present invention.
In the figure: 1. the device comprises a catalytic box, 2, a pulse corona box, 3, a sheet magnet, 4, a gas passing channel, 5, a copper electrode, 6, a wiring board I, 7, a grounding electrode plate I, 8, a wire passing opening, 9, an arc transition plate, 10, a baffle plate partition plate A, 11, a baffle plate partition plate B, 12, an opening A, 13, a wiring board II, 14, a grounding electrode plate II, 15, a gas port B, 16, a gas port A, 17, a gas port C, 18, a gas port D, 19, a total gas inlet, 20, a total gas outlet, 21, a single metal box, 22 and a magnetic back plate.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 to 7, a device for treating VOCs by using pulse corona and catalyst comprises a catalyst box 1 and a pulse corona box 2;
the left side of the front end of the pulse corona box 2 is provided with a square opening matched with the catalytic box 1; the pulse corona box 2 is formed by longitudinally superposing three single metal boxes 21 with the same shape and structure; the single metal box 21 is provided with an opening A12 on the front side surface of the square opening, and a vertically arranged wiring board I6, a wiring board II 13, a grounding electrode plate I7 and a grounding electrode plate II 14 are arranged in the single metal box; the left side surface and the right side surface of the wiring board I6 are respectively provided with an even number of copper electrodes 5, the wiring board I6 is made of insulating materials, is positioned in the middle of the square opening and extends in the front-back direction, the rear end of the wiring board I is fixedly connected with the rear end plate of the single metal box 21, and the front end of the wiring board I extends to a position close to the square opening; the second grounding electrode plate 14 is positioned at the right end of the square opening, the front end of the second grounding electrode plate is connected with the rear end of the side end plate in the middle of the single metal box 21, the rear end of the second grounding electrode plate extends towards the rear end plate of the single metal box 21, and a gas passing channel 4 is reserved between the second grounding electrode plate and the rear end plate of the single metal box 21; the wiring board II 13 is made of an insulating material and is mounted on the inner side of the right end plate of the single metal box 21 in a fitting manner, an even number of copper electrodes 5 are mounted on the inner side surface of the wiring board II 13, and the grounding copper electrode plate I7 is mounted on the inner side of the left end plate of the single metal box 21 in a fitting manner; the rear end of the single metal box 21 is provided with an air port B15 and an air port A16 which are respectively positioned on the upper cover plate and the lower cover plate on the left side of the wiring board I6, and the front end of the single metal box is provided with an air port C17 and an air port D18 which are respectively positioned on the upper cover plate and the lower cover plate on the right side of the grounding electrode plate II 14; after the three single metal boxes 21 are longitudinally overlapped, a gas port A16 on the lower single metal box 21 is used as a total gas inlet 19 of the pulse corona box 2, a gas port B15 and a gas port D18 on the lower single metal box 21 are both closed by a blocking plate, a gas port D18 on the middle single metal box 21 is communicated with a gas port C17 on the lower single metal box 21, a gas port C17 and a gas port A16 on the middle single metal box 21 are both closed by the blocking plate, a gas port A16 on the upper single metal box 21 is communicated with a gas port B15 on the middle single metal box 21, a gas port C17 on the upper single metal box 21 is used as a total gas outlet 20 of the pulse corona box 2, and a gas port B15 and a gas port D18 on the upper single metal box 21 are both closed by the; the first grounding electrode plate 7 and the second grounding electrode plate 14 are grounded through the single metal box 21; the copper electrode 5 is connected with an external high-voltage narrow pulse power supply through a wire through hole 8 arranged on the single metal box 21;
the catalytic box 1 is arranged in the square opening and is attached to the pulse corona box 2; the rear side face of the catalytic box 1 is provided with an opening B, the opening B is sealed by a baffle plate partition plate A10 which is vertically arranged to form an accommodating cavity, at least one baffle plate partition plate B11 which extends in the front-back direction and is vertically arranged is arranged in the accommodating cavity, and the baffle plate partition plate B11 divides the accommodating cavity into a plurality of cavity spaces; the baffle partition plate A10 and the baffle partition plate B11 are each provided with a plurality of through holes throughout the surface thereof.
In order to facilitate assembly, disassembly and transportation, the right side surface of the catalysis box 1 is provided with a magnetic back plate 22 in a fitting manner, and is fixedly connected with the pulse corona box 2 in a suction manner through the magnetic back plate 22; the upper single metal box 21 and the middle single metal box 21, and the middle single metal box 21 and the lower single metal box 21 are fixedly connected through the sheet-shaped magnet 3 in an attracting mode.
In order to enable the gas to pass through smoothly when the gas passes through, an arc transition plate 9 is further arranged in the single metal box 21, the arc transition plate 9 is vertically arranged and is arranged close to the rear end plate of the single metal box 21, one end of the arc transition plate is connected with the wiring board I6, the other end of the arc transition plate is connected with the right side plate of the single metal box 21, and the concave surface faces to the front side.
The copper electrode 5 is in a cone shape, the tip end of the copper electrode is arranged away from the first wiring board 6 or the second wiring board 13, and a plurality of hollow holes are formed in the cone surface all over; the spacing between adjacent copper electrodes 5 is the same. The arrangement of the hollow holes can form a plurality of electrodes with small curvature radius, so that a plurality of corona regions can be formed conveniently, and the problems of small corona regions and non-uniform electron current density in the traditional needle plate type pulse corona method are solved.
Preferably, the one-piece metal case 21 is made of ferritic stainless steel.
The working process is as follows:
and (3) supplying the gas containing the VOCs with low concentration and large air volume after drying and dust removal into the pulse corona box 2 through the main air inlet 19, wherein the gas enters the single metal box 21 at the lower side in the pulse corona box 2, then passes through the single metal box 21 from left to right in an S-shaped manner, then enters the single metal box 21 at the middle part, then passes through the single metal box 21 from right to left in an S-shaped manner, then passes through the single metal box 21 from left to right in an S-shaped manner, and finally is discharged from the main air outlet 20. In the process, high-voltage narrow pulses are loaded by an external high-voltage narrow pulse power supply, and then a pulse electric field is generated near the copper electrode. When the gas passes through the corona region, VOCs are purified by high-energy electrons, ions and a large amount of active radicals and ultraviolet rays generated by ionizing the gas by the copper electrode 5 with the hollowed holes, and then enter the catalytic box 1 through the through holes on the baffle plate A10 (the catalyst in the catalytic box 1 has a large absorption capacity for VOCs). On one hand, baffle baffles A and B in the catalytic box 1 can produce turbulence to improve the collision frequency between high-energy particles and VOCs; on the other hand, the plasma also has a large number of micro-discharges between the catalysts, which can activate the catalysts and generate heat to release VOCs. This "storage-discharge" process extends the residence time of the VOCs inside the reactor. Therefore, the concentration of VOCs in the device is greatly improved, so that the frequency of collision of electrons, particles and activity based on pollutant molecules is greatly improved, and the degradation efficiency is greatly improved. The released and unpurified VOCs pass through the two pulse discharge regions in the single metal case 21 again, and enter the middle and upper single metal cases 21 in an S-shape in sequence to repeat the process. Finally, the purified gas is discharged through the general gas outlet 20 of the pulse corona box 2.
Claims (5)
1. A device for treating VOCs (volatile organic chemicals) by using pulse corona and a catalyst comprises a catalytic box (1) and is characterized by also comprising a pulse corona box (2);
the left side of the front end of the pulse corona box (2) is provided with a square opening matched with the catalysis box (1); the pulse corona box (2) is formed by longitudinally superposing three single metal boxes (21) with the same shape and structure; the single metal box (21) is provided with an opening A (12) on the front side face of the square opening, and a vertically arranged wiring board I (6), a wiring board II (13), a grounding electrode plate I (7) and a grounding electrode plate II (14) are arranged in the single metal box; the left side and the right side of the wiring board I (6) are respectively provided with an even number of copper electrodes (5), the wiring board I (6) is made of insulating materials, is positioned in the middle of the square opening and extends in the front-back direction, the rear end of the wiring board I is fixedly connected with the rear end plate of the single metal box (21), and the front end of the wiring board I extends to a position close to the square opening; the second grounding electrode plate (14) is positioned at the right end of the square opening, the front end of the second grounding electrode plate is connected with the rear end of the side end plate in the middle of the single metal box (21), the rear end of the second grounding electrode plate extends towards the rear end plate of the single metal box (21), and a gas passing channel (4) is reserved between the second grounding electrode plate and the rear end plate of the single metal box (21); the wiring board II (13) is made of an insulating material and is attached to the inner side of the right end plate of the single metal box (21), an even number of copper electrodes (5) are mounted on the inner side surface of the wiring board II (13), and the grounding electrode plate I (7) is attached to the inner side of the left end plate of the single metal box (21); the rear end of the single metal box (21) is provided with an air port B (15) and an air port A (16) which are respectively positioned on the upper cover plate and the lower cover plate on the left side of the wiring board I (6), and the front end of the single metal box is provided with an air port C (17) and an air port D (18) which are respectively positioned on the upper cover plate and the lower cover plate on the right side of the grounding electrode plate II (14); after the three monomer metal boxes (21) are longitudinally overlapped, a gas port A (16) on the lower monomer metal box (21) is used as a total gas inlet (19) of the pulse corona box (2), a gas port B (15) and a gas port D (18) on the lower monomer metal box (21) are both sealed by a plugging plate, a gas port D (18) on the middle monomer metal box (21) is communicated with a gas port C (17) on the lower monomer metal box (21), a gas port C (17) and a gas port A (16) on the middle monomer metal box (21) are both sealed by a plugging plate, a gas port A (16) on the upper monomer metal box (21) is communicated with a gas port B (15) on the middle monomer metal box (21), a gas port C (17) on the upper monomer metal box (21) is used as a total gas outlet (20) of the pulse corona box (2), and a gas port B (15) and a gas port D (18) on the upper monomer metal box (21) are both sealed by a plugging plate; the first grounding electrode plate (7) and the second grounding electrode plate (14) are grounded through the single metal box (21); the copper electrode (5) is connected with an external high-voltage narrow pulse power supply through a wire passing port (8) arranged on the single metal box (21);
the catalytic box (1) is arranged in the square opening and is attached to the pulse corona box (2); the rear side surface of the catalytic box (1) is provided with an opening B, the opening B is sealed by a baffle plate partition plate A (10) which is vertically arranged to form an accommodating cavity, at least one baffle plate partition plate B (11) which is vertically arranged and extends in the front-back direction is arranged in the accommodating cavity, and the baffle plate partition plate B (11) divides the accommodating cavity into a plurality of cavity spaces; the baffle plate A (10) and the baffle plate B (11) are provided with a plurality of through holes all over the surface.
2. The device for treating VOCs (volatile organic chemicals) by the aid of the pulse corona and the catalyst according to claim 1, wherein a magnetic back plate (22) is fittingly installed on the right side surface of the catalytic box (1) and fixedly connected with the pulse corona box (2) in a suction manner through the magnetic back plate (22); the upper single metal box (21) and the middle single metal box (21) and the lower single metal box (21) are fixedly connected in an attracting mode through the sheet-shaped magnet (3).
3. A device for treating VOCs by using pulse corona and catalyst as claimed in claim 1 or 2, wherein an arc transition plate (9) is further disposed in the single metal box (21), the arc transition plate (9) is vertically disposed and disposed close to the rear end plate of the single metal box (21), one end of the arc transition plate is connected with the first wiring board (6), the other end of the arc transition plate is connected with the right side plate of the single metal box (21), and the concave surface faces to the front side.
4. A device for treating VOCs with pulsed corona and catalyst as claimed in claim 3, wherein the copper electrode (5) is cone-shaped, the tip of the copper electrode is away from the first (6) or second (13) wiring board, and a plurality of holes are formed on the cone surface; the intervals between the adjacent copper electrodes (5) are the same.
5. A device for pulsed corona co-catalyst treatment of VOCs according to claim 4, wherein the monolithic metal case (21) is made of ferritic stainless steel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020093301.4U CN211936380U (en) | 2020-01-16 | 2020-01-16 | Device for treating VOCs (volatile organic compounds) by using pulse corona and catalyst |
| AU2020103321A AU2020103321A4 (en) | 2020-01-16 | 2020-11-09 | DEVICE FOR TREATING VOCs WITH PULSE CORONA AND CATALYST |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020093301.4U CN211936380U (en) | 2020-01-16 | 2020-01-16 | Device for treating VOCs (volatile organic compounds) by using pulse corona and catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211936380U true CN211936380U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020093301.4U Expired - Fee Related CN211936380U (en) | 2020-01-16 | 2020-01-16 | Device for treating VOCs (volatile organic compounds) by using pulse corona and catalyst |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211936380U (en) |
| AU (1) | AU2020103321A4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121095B (en) * | 2021-03-24 | 2023-04-25 | 湖北湛澜环保科技有限公司 | MRTO magnetic control medium-temperature plasma VOCs digestion device, system and process |
-
2020
- 2020-01-16 CN CN202020093301.4U patent/CN211936380U/en not_active Expired - Fee Related
- 2020-11-09 AU AU2020103321A patent/AU2020103321A4/en not_active Ceased
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| AU2020103321A4 (en) | 2021-01-14 |
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