CN203458966U - Low temperature plasmas catalysis denitration device - Google Patents
Low temperature plasmas catalysis denitration device Download PDFInfo
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- CN203458966U CN203458966U CN201320585683.2U CN201320585683U CN203458966U CN 203458966 U CN203458966 U CN 203458966U CN 201320585683 U CN201320585683 U CN 201320585683U CN 203458966 U CN203458966 U CN 203458966U
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Abstract
The utility model discloses a low temperature plasmas catalysis denitration device which comprises a positive pole device and a negative pole device, wherein the positive pole device and negative pole device are arranged inside an insulation box; the outer surface of the insulation box is coated with a housing; a smoke inlet is formed at one end of the housing; a smoke outlet is formed at the other end of the housing; a plurality of supporting pieces are connected between the positive pole device and the negative pole device. The oxidation and degradation of nitric oxides are promoted by spraying a catalyst on the surface of an positive pole while the oxidation of sulfur dioxide is inhibited, so that the denitration efficiency is effectively improved, and the energy consumption is reduced; stainless steel plate hollow type burrs are adopted, the edges of pole plates are in sliding arc shapes, reinforcing steel bars coated with ceramic tubes or insulated pipes are used for supporting between the pole plates, so that the stability of the pole plates is guaranteed, and the accuracy of a distance between the positive pole plate and the passive pole plate is guaranteed.
Description
Technical field
The utility model relates to field of environment protection, relates in particular to a kind of low temperature plasma catalytic denitration device.
Background technology
Denitration of boiler smoke is the requirement of current environmental protection; existing low nitrogen burning technology, SCR technology and SNCR technology cannot meet all users' requirement; low temperature plasma denitration has the advantages that strong adaptability, floor space are little, multiple pollutant comprehensively removes that ability is strong; can remove with the nitric oxide in degraded flue gas by the efficient oxidation; and sulfur dioxide, Elemental Mercury are had to oxidation; for organic pollution, there is degradation, effectively solved smoke pollution of boiler problem.
Low temperature plasma denitration technology has high pressure pulse discharge to produce low temperature plasma and dielectric barrier discharge produces two kinds of modes of low temperature plasma, and because low temperature plasma has strong oxidation to sulfur dioxide, so consumed energy is large, and cost is high.Traditional electrode layout and suspension type are difficult to guarantee that electrode spacing is accurate simultaneously, and guiding discharge is inhomogeneous, and the low-temperature plasma bulk concentration of generation is low, and region is little.It is large that existing low temperature plasma denitrification apparatus exists energy consumption, and efficiency is low, the problem of poor stability.
Utility model content
The deficiency existing for solving prior art, the utility model discloses a kind of low temperature plasma catalytic denitration device, this device utilizes anode surface spraying catalyst to promote the oxidation of nitrogen oxide and degraded to suppress oxidizing sulfur dioxide simultaneously, effectively improve denitration efficiency, reduce energy consumption simultaneously, utilize corrosion resistant plate hollow type prickle, panel edges adopts smooth arc shape, between pole plate, adopt the reinforced bar support of earthenware or insulation tube parcel, guaranteed pole plate stability, guaranteed and positive plate between distance accurate.
For achieving the above object, concrete scheme of the present utility model is as follows:
A kind of low temperature plasma catalytic denitration device, comprise anode assembly and cathode assembly, anode assembly and cathode assembly are placed in insulated case, the coated outside of insulated case housing, one end of described housing is provided with gas approach, the other end of housing is provided with exhanst gas outlet, between described anode assembly and cathode assembly, by some support members, connects.
Described cathode assembly comprises minus plate, the panel edges of minus plate adopts smooth arc shape, the centre of minus plate is provided with a row and supports fixing hole, the both sides of minus plate are provided with two symmetrical rows and support fixing hole, adjacent two rows support between fixing hole and are provided with two row's prickles, described prickle is corrosion resistant plate hollow type prickle, and between adjacent row's prickle, distance is at least the spacing of 1.5 times of minus plates and positive plate.
Described anode assembly comprises the corrosion resistant plate positive plate of surface spraying titanium deoxide catalyst, and positive plate is provided with and support fixing hole corresponding on minus plate.
The support fixing hole of described minus plate and positive plate is connected by support member, described support member is the reinforcing bar of earthenware or insulation tube parcel, the center of minus plate and positive plate is respectively equipped with corresponding power supply axis hole, between power supply axis hole, pass power supply reinforcing bar, the external supporting high-voltage pulse power source of power supply reinforcing bar.
Described supporting high-voltage pulse power source is nanosecond class pulse generator for EDM or the Microsecond grade pulse power.
The power of supporting high-voltage pulse power source: P=5*Q
P is the performance number of supporting high-voltage pulse power source, and Q is the numerical value of flue gas treating capacity, and the unit of the power of supporting high-voltage pulse power source is watt that the unit of flue gas treating capacity is Nm
3/ h.
When supporting the use nanosecond class pulse generator for EDM, the distance between positive plate and minus plate: d1=0.6*u1
D1 is positive plate that nanosecond class pulse generator for EDM is corresponding and the distance value between minus plate, u1 is the power supply rated output voltage value that nanosecond class pulse generator for EDM is corresponding, the anode that nanosecond class pulse generator for EDM is corresponding and the unit of the distance between negative electrode are millimeter, and the power supply rated output voltage unit that nanosecond class pulse generator for EDM is corresponding is kilovolt.
When supporting the use the Microsecond grade pulse power, the distance between positive plate and minus plate: d2=0.9*u2
D2 is positive plate that the Microsecond grade pulse power is corresponding and the distance value between minus plate, u2 is the power supply rated output voltage value that the Microsecond grade pulse power is corresponding, the anode that the Microsecond grade pulse power is corresponding and the unit of the distance between negative electrode are millimeter, and the power supply rated output voltage unit that the Microsecond grade pulse power is corresponding is kilovolt.
Cathode assembly adopts corrosion resistant plate hollow type prickle, has guaranteed pole plate stability, guaranteed and positive plate between distance accurate.
The plus high-pressure pulse power produces low temperature plasma with the form of catalyst coat dielectric barrier discharge, nitric oxide is oxidized and is degraded, simultaneous oxidation part sulfur dioxide, mercury and degradable organic pollutant.
The corrosion resistant plate electrode spraying titanium deoxide catalyst of anode assembly, has effectively improved low temperature plasma to nitric oxide production decomposition and oxidation, has reduced the oxidation of low temperature plasma to sulfur dioxide, has improved energy utilization efficiency.
Cathode assembly adopts corrosion resistant plate hollow type prickle, and panel edges adopts smooth arc shape, adopts the reinforced bar support of earthenware or insulation tube parcel between pole plate, has guaranteed pole plate stability, guaranteed and positive plate between distance accurate.Pole plate center adopts the reinforcing bar power supply of earthenware or insulation tube parcel, also provides support function simultaneously, the external high-voltage pulse power source of power supply reinforcing bar.
The beneficial effects of the utility model:
Utilize anode surface spraying catalyst to promote the oxidation of nitrogen oxide and degraded to suppress oxidizing sulfur dioxide simultaneously, effectively improve denitration efficiency, reduce energy consumption simultaneously, utilize corrosion resistant plate hollow type prickle, panel edges adopts smooth arc shape, the reinforced bar support that adopts earthenware or insulation tube parcel between pole plate, has guaranteed pole plate stability, guaranteed and positive plate between distance accurate.
Accompanying drawing explanation
Fig. 1 the utility model structural representation;
Fig. 2 minus plate structural representation of the present utility model;
Fig. 3 anode plate structure schematic diagram of the present utility model;
In figure, 1. smoke inlet 2. minus plate 3. positive plate 4. exhanst gas outlet 5. prickles 6. support fixing hole 7. power supply axis holes.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is elaborated:
As shown in Figure 1, a kind of low temperature plasma catalytic denitration device, comprise anode assembly and cathode assembly, anode assembly and cathode assembly are placed in insulated case, the coated outside of insulated case housing, one end of described housing is provided with gas approach 1, and the other end of housing is provided with exhanst gas outlet 4, between described anode assembly and cathode assembly, by some support members, connects.
Described cathode assembly comprises minus plate 2, the panel edges of minus plate 2 adopts smooth arc shape, the centre of minus plate 2 is provided with a row and supports fixing hole 6, the both sides of minus plate 2 are provided with two symmetrical rows and support fixing hole 6, adjacent two rows support between fixing hole 6 and are provided with two row's prickles 5, described prickle 5 is corrosion resistant plate hollow type prickle 5, and between adjacent row's prickle 5, distance is at least the spacing of 1.5 times of minus plates 2 and positive plate 3.
Described anode assembly comprises the corrosion resistant plate positive plate 3 of surface spraying titanium deoxide catalyst, and positive plate 3 is provided with and support fixing hole 6 corresponding on minus plate 2.
The support fixing hole 6 of described minus plate 2 and positive plate 3 is connected by support member, described support member is the reinforcing bar of earthenware or insulation tube parcel, the center of minus plate 2 and positive plate 3 is respectively equipped with corresponding power supply axis hole 7, between power supply axis hole 7, pass power supply reinforcing bar, the external supporting high-voltage pulse power source of power supply reinforcing bar.
Described supporting high-voltage pulse power source is nanosecond class pulse generator for EDM or the Microsecond grade pulse power.
The power of supporting high-voltage pulse power source: P=5*Q
P is the performance number of supporting high-voltage pulse power source, and Q is the numerical value of flue gas treating capacity, and the unit of the power of supporting high-voltage pulse power source is watt that the unit of flue gas treating capacity is Nm
3/ h.
When supporting the use nanosecond class pulse generator for EDM, the distance between anode and negative electrode: d1=0.6*u1
D1 is anode that nanosecond class pulse generator for EDM is corresponding and the distance value between negative electrode, u1 is the power supply rated output voltage value that nanosecond class pulse generator for EDM is corresponding, the anode that nanosecond class pulse generator for EDM is corresponding and the unit of the distance between negative electrode are millimeter, and the power supply rated output voltage unit that nanosecond class pulse generator for EDM is corresponding is kilovolt.
When supporting the use the Microsecond grade pulse power, the distance between anode and negative electrode: d2=0.9*u2
D2 is anode that the Microsecond grade pulse power is corresponding and the distance value between negative electrode, u2 is the power supply rated output voltage value that the Microsecond grade pulse power is corresponding, the anode that the Microsecond grade pulse power is corresponding and the unit of the distance between negative electrode are millimeter, and the power supply rated output voltage unit that the Microsecond grade pulse power is corresponding is kilovolt.
After dedusting, flue gas enters denitrification apparatus by smoke inlet 1, minus plate 2 pole plate 3 electric discharge that faces south at negative electrode prickle 5 places after power supply, producing low temperature plasma is oxidized and degrades nitric oxide in flue gas, simultaneous oxidation part sulfur dioxide, mercury and degradable organic pollutant, the reinforcing bar that minus plate wraps up by earthenware supports through supporting fixing hole 6, center reinforcing bar is through the power supply of the external high-voltage pulse power source target of power supply axis hole 7 plate, positive plate ground connection, power supply adopts rising front to be less than the high-voltage pulse electric of 200 nanoseconds, flue gas after processing is discharged from exhanst gas outlet 4.
Claims (7)
1. a low temperature plasma catalytic denitration device, it is characterized in that, comprise anode assembly and cathode assembly, anode assembly and cathode assembly are placed in insulated case, the coated outside of insulated case housing, one end of described housing is provided with gas approach, and the other end of housing is provided with exhanst gas outlet, between described anode assembly and cathode assembly, by some support members, connects.
2. a kind of low temperature plasma catalytic denitration device as claimed in claim 1, it is characterized in that, described cathode assembly comprises minus plate, the panel edges of minus plate adopts smooth arc shape, the centre of minus plate is provided with a row and supports fixing hole, and the both sides of minus plate are provided with two symmetrical rows and support fixing hole, and adjacent two rows support between fixing hole and are provided with two row's prickles, described prickle is corrosion resistant plate hollow type prickle, and between adjacent row's prickle, distance is at least the spacing of 1.5 times of minus plates and positive plate;
Described anode assembly comprises the corrosion resistant plate positive plate of surface spraying titanium deoxide catalyst, and positive plate is provided with and support fixing hole corresponding on minus plate.
3. a kind of low temperature plasma catalytic denitration device as claimed in claim 2, it is characterized in that, the support fixing hole of described minus plate and positive plate is connected by support member, described support member is the reinforcing bar of earthenware or insulation tube parcel, the center of minus plate and positive plate is respectively equipped with corresponding power supply axis hole, between power supply axis hole, pass power supply reinforcing bar, the external supporting high-voltage pulse power source of power supply reinforcing bar.
4. a kind of low temperature plasma catalytic denitration device as claimed in claim 3, is characterized in that, described supporting high-voltage pulse power source is nanosecond class pulse generator for EDM or the Microsecond grade pulse power.
5. a kind of low temperature plasma catalytic denitration device as claimed in claim 4, is characterized in that the power of described supporting high-voltage pulse power source: P=5*Q
Wherein, the performance number that P is supporting high-voltage pulse power source, Q is the numerical value of flue gas treating capacity, the unit of the power of supporting high-voltage pulse power source is watt that the unit of flue gas treating capacity is Nm
3/ h.
6. a kind of low temperature plasma catalytic denitration device as claimed in claim 4, is characterized in that, when described supporting high-voltage pulse power source is used nanosecond class pulse generator for EDM, and the distance between positive plate and minus plate: d1=0.6*u1
Wherein, d1 is positive plate that nanosecond class pulse generator for EDM is corresponding and the distance value between minus plate, u1 is the power supply rated output voltage value that nanosecond class pulse generator for EDM is corresponding, the anode that nanosecond class pulse generator for EDM is corresponding and the unit of the distance between negative electrode are millimeter, and the power supply rated output voltage unit that nanosecond class pulse generator for EDM is corresponding is kilovolt.
7. a kind of low temperature plasma catalytic denitration device as claimed in claim 4, is characterized in that, when described supporting high-voltage pulse power source is used the Microsecond grade pulse power, and the distance between positive plate and minus plate: d2=0.9*u2
Wherein, d2 is positive plate that the Microsecond grade pulse power is corresponding and the distance value between minus plate, u2 is the power supply rated output voltage value that the Microsecond grade pulse power is corresponding, the anode that the Microsecond grade pulse power is corresponding and the unit of the distance between negative electrode are millimeter, and the power supply rated output voltage unit that the Microsecond grade pulse power is corresponding is kilovolt.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585683.2U CN203458966U (en) | 2013-09-22 | 2013-09-22 | Low temperature plasmas catalysis denitration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585683.2U CN203458966U (en) | 2013-09-22 | 2013-09-22 | Low temperature plasmas catalysis denitration device |
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| CN203458966U true CN203458966U (en) | 2014-03-05 |
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| CN201320585683.2U Expired - Fee Related CN203458966U (en) | 2013-09-22 | 2013-09-22 | Low temperature plasmas catalysis denitration device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107233785A (en) * | 2016-03-29 | 2017-10-10 | 苏州迈沃环保工程有限公司 | The method and system of exhuast gas desulfurization denitration are carried out using super-pressure low temperature plasma |
| CN107376606A (en) * | 2017-09-04 | 2017-11-24 | 杭州天明环保工程有限公司 | A kind of flue gas plasma reactor and filtrating equipment of flue gas |
| CN108383199A (en) * | 2018-03-29 | 2018-08-10 | 南京中意昂环境科技发展有限公司 | A method of utilizing corona treatment water |
| CN108636072A (en) * | 2018-07-06 | 2018-10-12 | 大唐环境产业集团股份有限公司 | A kind of equipment for denitrifying flue gas based on low-temperature plasma |
-
2013
- 2013-09-22 CN CN201320585683.2U patent/CN203458966U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107233785A (en) * | 2016-03-29 | 2017-10-10 | 苏州迈沃环保工程有限公司 | The method and system of exhuast gas desulfurization denitration are carried out using super-pressure low temperature plasma |
| CN107376606A (en) * | 2017-09-04 | 2017-11-24 | 杭州天明环保工程有限公司 | A kind of flue gas plasma reactor and filtrating equipment of flue gas |
| CN108383199A (en) * | 2018-03-29 | 2018-08-10 | 南京中意昂环境科技发展有限公司 | A method of utilizing corona treatment water |
| CN108636072A (en) * | 2018-07-06 | 2018-10-12 | 大唐环境产业集团股份有限公司 | A kind of equipment for denitrifying flue gas based on low-temperature plasma |
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Granted publication date: 20140305 Termination date: 20170922 |