CN108722146A - A kind of flue gas desulfurization and denitration method generating the pulse power based on nanosecond plasma - Google Patents
A kind of flue gas desulfurization and denitration method generating the pulse power based on nanosecond plasma Download PDFInfo
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- CN108722146A CN108722146A CN201810385861.4A CN201810385861A CN108722146A CN 108722146 A CN108722146 A CN 108722146A CN 201810385861 A CN201810385861 A CN 201810385861A CN 108722146 A CN108722146 A CN 108722146A
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- flue gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention discloses a kind of flue gas desulfurization and denitration methods generating the pulse power based on nanosecond plasma, include the following steps：S1：Primary dedusting；S2：Humidifying cooling；S3：Reactor for treatment；S4：Final dusting；S5：Discharge.The present invention strictly controls the flue gas desulfurization and denitration method that the pulse power is generated based on nanosecond plasma, the pulse power is generated by using nanosecond plasma, its circuit uses highpowerpulse and magnetic compression technology, rectified three-phase circuit generates DC bus-bar voltage, Microsecond grade action of low-voltage pulse is generated through pulse generating unit, it is Microsecond grade high-voltage pulse through pulse booster boosting, again by compression device boil down to nanosecond high-voltage pulse, realize steepness pulse front edge, constriction pulse width, improve the purpose of repetition rate, to reach the requirement of the ultralow environment protection treating of desulphurization denitration dedusting, compared with other forms power supply, the efficiency that utilization rate of electrical and plasma generate is improved while reducing energy consumption.
Description
Technical field
It is specially a kind of that the pulse power is generated based on nanosecond plasma the present invention relates to fume treatment technical field
Flue gas desulfurization and denitration method.
Background technology
With the development of flue gas desulfurization and denitration technology, each state has all carried out the research of flue gas and desulfurizing and denitrifying technology,
Purpose, which is exploitation, has the new SOX/NOX combined desulfurization technologies for being less than tradition FGD and SCR group technology expenses, at present mostly
Number new process is in the development phase, and business application is not yet received.Dust is important one of pollution sources, the tail of coal-burning boiler discharge
Contain a large amount of SO2 in gas, nitrogen oxides also contains a large amount of flue dust, so while desulfurization and denitrogenation, it is necessary to which consideration removes
Dirt.
Corona discharge pulse flue gas desulfurization and denitrification technology is as existing desulphurization denitration technological means, existing desulphurization denitration
The power supply architecture that equipment uses, repetition rate is relatively low, and utilization rate of electrical and plasma generate less efficient, and energy consumption compared with
Greatly.
Invention content
The purpose of the present invention is to provide a kind of flue gas desulfurization and denitrifications generating the pulse power based on nanosecond plasma
Method, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：One kind generating pulse based on nanosecond plasma
The flue gas desulfurization and denitration method of power supply, includes the following steps：
S1：Primary dedusting, the flue gas in boiler are entered in deduster by pipeline and are removed under the introducing effect of wind turbine
Dirt processing；
S2：Humidifying cooling, the flue gas after dedusting enter progress spraying cooling processing in humidifying cooling tower by pipeline；
S3：Reactor for treatment, the flue gas after cooling enter in pulsed discharge desulfurization and denitrification reaction device, and enter in reactor
Ammonia is added in mouth, and corona discharge pulse acts synergistically with ammonia and converts SO2 and NOX to ammonium salt fine particle in reactor, and
It is collected as flue gas enters in collection of products device；
S4：Final dusting, the product not being collected are again introduced into deduster with flue gas and are dusted processing, product is inhaled
Receive removal；
S5：Clean gas after separation product in S4 is discharged from chimney for discharge.
Preferably, what the deduster in the step S1 and S4 was all made of is electric precipitator, and electric precipitator is supplied using direct current
The model of electric electric precipitator, electric precipitator is LPM type air shocking type bag dedusters.
Preferably, for the cooling temperature control in the step S2 at 60-80 DEG C, cooling method is that heat exchanger cools down and sprays
One kind in mist humidification is two kinds cooling.
Preferably, the spray liquid air volume ratio during the spray washing in the step S2 is 0.5-15L/M3。
Preferably, pulsed discharge mode generates the pulse power using nanosecond plasma in the step S3.
Preferably, the front-end and back-end of the collection of products device in the step S3 are respectively set sampling and are included in mouth and go out
Mouthful.
Preferably, the dedusting product obtained in the step S3 and step S4 is cleared up by increasing rapping intensity method
It eliminates.
Preferably, the chimney height used in the step S5 is not less than 45m.
Compared with prior art, the beneficial effects of the invention are as follows：Strictly control should be based on nanosecond plasma to the present invention
The flue gas desulfurization and denitration method for generating the pulse power generates the pulse power by using nanosecond plasma, and circuit uses
Highpowerpulse and magnetic compression technology, rectified three-phase circuit generate DC bus-bar voltage, and Microsecond grade is generated through pulse generating unit
Action of low-voltage pulse is Microsecond grade high-voltage pulse through pulse booster boosting, then by compression device boil down to nanosecond high-tension pulse
Steepness pulse front edge, constriction pulse width, the purpose for improving repetition rate are realized in punching, ultralow to reach desulphurization denitration dedusting
The requirement of environment protection treating improves utilization rate of electrical and plasma production compared with other forms power supply while reducing energy consumption
Raw efficiency.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Embodiment 1
A kind of flue gas desulfurization and denitration method being generated the pulse power based on nanosecond plasma, is included the following steps：
S1：Primary dedusting, the flue gas in boiler are entered in deduster by pipeline and are removed under the introducing effect of wind turbine
Dirt processing；
S2：Humidifying cooling, the flue gas after dedusting enter progress spraying cooling processing in humidifying cooling tower by pipeline；
S3：Reactor for treatment, the flue gas after cooling enter in pulsed discharge desulfurization and denitrification reaction device, and enter in reactor
Ammonia is added in mouth, and corona discharge pulse acts synergistically with ammonia and converts SO2 and NOX to ammonium salt fine particle in reactor, and
It is collected as flue gas enters in collection of products device；
S4：Final dusting, the product not being collected are again introduced into deduster with flue gas and are dusted processing, product is inhaled
Receive removal；
S5：Clean gas after separation product in S4 is discharged from chimney for discharge.
Specifically, what the deduster in the step S1 and S4 was all made of is electric precipitator, electric precipitator is supplied using direct current
The model of electric electric precipitator, electric precipitator is LPM type air shocking type bag dedusters.
Specifically, the cooling temperature control in the step S2 is at 60 DEG C, cooling method is that gentle spray drops in heat exchanger
One kind in humidification is two kinds cooling.
Specifically, the spray liquid air volume ratio during spray washing in the step S2 is 0.5-15L/M3。
Specifically, pulsed discharge mode generates the pulse power using nanosecond plasma in the step S3；Its
Circuit uses highpowerpulse and magnetic compression technology, rectified three-phase circuit to generate DC bus-bar voltage, produced through pulse generating unit
Raw Microsecond grade action of low-voltage pulse is Microsecond grade high-voltage pulse through pulse booster boosting, then by compression device boil down to nanosecond
Grade high-voltage pulse.
It is included in mouth specifically, sampling is respectively set in the front-end and back-end of the collection of products device in the step S3 and goes out
Mouthful.
Specifically, the dedusting product obtained in the step S3 and step S4 is cleared up by increasing rapping intensity method
It eliminates.
Specifically, the chimney height used in the step S5 is not less than 45m.
Embodiment 2
A kind of flue gas desulfurization and denitration method being generated the pulse power based on nanosecond plasma, is included the following steps：
S1：Primary dedusting, the flue gas in boiler are entered in deduster by pipeline and are removed under the introducing effect of wind turbine
Dirt processing；
S2：Humidifying cooling, the flue gas after dedusting enter progress spraying cooling processing in humidifying cooling tower by pipeline；
S3：Reactor for treatment, the flue gas after cooling enter in pulsed discharge desulfurization and denitrification reaction device, and enter in reactor
Ammonia is added in mouth, and corona discharge pulse acts synergistically with ammonia and converts SO2 and NOX to ammonium salt fine particle in reactor, and
It is collected as flue gas enters in collection of products device；
S4：Final dusting, the product not being collected are again introduced into deduster with flue gas and are dusted processing, product is inhaled
Receive removal；
S5：Clean gas after separation product in S4 is discharged from chimney for discharge.
Specifically, what the deduster in the step S1 and S4 was all made of is electric precipitator, electric precipitator is supplied using direct current
The model of electric electric precipitator, electric precipitator is LPM type air shocking type bag dedusters.
Specifically, the cooling temperature control in the step S2 is at 70 DEG C, cooling method is that gentle spray drops in heat exchanger
One kind in humidification is two kinds cooling.
Specifically, the spray liquid air volume ratio during spray washing in the step S2 is 0.5-15L/M3。
Specifically, pulsed discharge mode generates the pulse power using nanosecond plasma in the step S3；Its
Circuit uses highpowerpulse and magnetic compression technology, rectified three-phase circuit to generate DC bus-bar voltage, produced through pulse generating unit
Raw Microsecond grade action of low-voltage pulse is Microsecond grade high-voltage pulse through pulse booster boosting, then by compression device boil down to nanosecond
Grade high-voltage pulse.
It is included in mouth specifically, sampling is respectively set in the front-end and back-end of the collection of products device in the step S3 and goes out
Mouthful.
Specifically, the dedusting product obtained in the step S3 and step S4 is cleared up by increasing rapping intensity method
It eliminates.
Specifically, the chimney height used in the step S5 is not less than 45m.
Embodiment 3
A kind of flue gas desulfurization and denitration method being generated the pulse power based on nanosecond plasma, is included the following steps：
S1：Primary dedusting, the flue gas in boiler are entered in deduster by pipeline and are removed under the introducing effect of wind turbine
Dirt processing；
S2：Humidifying cooling, the flue gas after dedusting enter progress spraying cooling processing in humidifying cooling tower by pipeline；
S3：Reactor for treatment, the flue gas after cooling enter in pulsed discharge desulfurization and denitrification reaction device, and enter in reactor
Ammonia is added in mouth, and corona discharge pulse acts synergistically with ammonia and converts SO2 and NOX to ammonium salt fine particle in reactor, and
It is collected as flue gas enters in collection of products device；
S4：Final dusting, the product not being collected are again introduced into deduster with flue gas and are dusted processing, product is inhaled
Receive removal；
S5：Clean gas after separation product in S4 is discharged from chimney for discharge.
Specifically, what the deduster in the step S1 and S4 was all made of is electric precipitator, electric precipitator is supplied using direct current
The model of electric electric precipitator, electric precipitator is LPM type air shocking type bag dedusters.
Specifically, the cooling temperature control in the step S2 is at 80 DEG C, cooling method is that gentle spray drops in heat exchanger
One kind in humidification is two kinds cooling.
Specifically, the spray liquid air volume ratio during spray washing in the step S2 is 0.5-15L/M3。
Specifically, pulsed discharge mode generates the pulse power using nanosecond plasma in the step S3；Its
Circuit uses highpowerpulse and magnetic compression technology, rectified three-phase circuit to generate DC bus-bar voltage, produced through pulse generating unit
Raw Microsecond grade action of low-voltage pulse is Microsecond grade high-voltage pulse through pulse booster boosting, then by compression device boil down to nanosecond
Grade high-voltage pulse.
It is included in mouth specifically, sampling is respectively set in the front-end and back-end of the collection of products device in the step S3 and goes out
Mouthful.
Specifically, the dedusting product obtained in the step S3 and step S4 is cleared up by increasing rapping intensity method
It eliminates.
Specifically, the chimney height used in the step S5 is not less than 45m.
In summary：The present invention strictly controls the flue gas desulfurization and denitrification that the pulse power is generated based on nanosecond plasma
Method generates the pulse power by using nanosecond plasma, and circuit uses highpowerpulse and magnetic compression technology, three-phase
Rectification circuit generates DC bus-bar voltage, and Microsecond grade action of low-voltage pulse is generated through pulse generating unit, is through pulse booster boosting
Microsecond grade high-voltage pulse, then by compression device boil down to nanosecond high-voltage pulse, realize steepness pulse front edge, constriction pulse
Width, the purpose for improving repetition rate, to reach the requirement of the ultralow environment protection treating of desulphurization denitration dedusting, with other forms power supply
It compares, the efficiency that utilization rate of electrical and plasma generate is improved while reducing energy consumption.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of flue gas desulfurization and denitration method generating the pulse power based on nanosecond plasma, it is characterised in that：Including such as
Lower step：
S1：Primary dedusting, the flue gas in boiler are entered in deduster by pipeline under the introducing effect of wind turbine and are dusted place
Reason；
S2：Humidifying cooling, the flue gas after dedusting enter progress spraying cooling processing in humidifying cooling tower by pipeline；
S3：Reactor for treatment, the flue gas after cooling enter in pulsed discharge desulfurization and denitrification reaction device, and add in reactor inlet
Enter ammonia, it is ammonium salt fine particle that corona discharge pulse, which acts synergistically with ammonia by SO2 and NOX conversion, in reactor, and with
Flue gas, which enters in collection of products device, to be collected；
S4：Final dusting, the product not being collected are again introduced into deduster with flue gas and are dusted processing, and product absorption is gone
It removes；
S5：Clean gas after separation product in S4 is discharged from chimney for discharge.
2. flue gas desulfurization and denitration method according to claim 1, it is characterised in that：Deduster in the step S1 and S4
What is be all made of is electric precipitator, and electric precipitator uses direct current supply electric precipitator, and the model of electric precipitator is LPM type air shocking type bags
Deduster.
3. flue gas desulfurization and denitration method according to claim 1, it is characterised in that：Cooling temperature control in the step S2
For system at 60-80 DEG C, cooling method is one kind in two kinds of heat exchanger cooling and spray humidification cooling.
4. flue gas desulfurization and denitration method according to claim 1, it is characterised in that：Spray washing mistake in the step S2
Spray liquid air volume ratio in journey is 0.5-15L/M3。
5. flue gas desulfurization and denitration method according to claim 1, it is characterised in that：Pulsed discharge mode in the step S3
The pulse power is generated using nanosecond plasma.
6. flue gas desulfurization and denitration method according to claim 1, it is characterised in that：Collection of products dress in the step S3
Sampling meter entrance and exit is respectively set in the front-end and back-end set.
7. flue gas desulfurization and denitration method according to claim 1, it is characterised in that：It is obtained in the step S3 and step S4
Dedusting product by increase rapping intensity method carry out cleaning elimination.
8. flue gas desulfurization and denitration method according to claim 1, it is characterised in that：The chimney used in the step S5 is high
Degree is not less than 45m.
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| CN201810385861.4A CN108722146A (en) | 2018-04-26 | 2018-04-26 | A kind of flue gas desulfurization and denitration method generating the pulse power based on nanosecond plasma |
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| CN201810385861.4A CN108722146A (en) | 2018-04-26 | 2018-04-26 | A kind of flue gas desulfurization and denitration method generating the pulse power based on nanosecond plasma |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110115916A (en) * | 2019-01-30 | 2019-08-13 | 浙江大维高新技术股份有限公司 | The tapping equipment and technique of gas boiler flue gas |
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