CN107081046A - A kind of pulse generating unit for gas cleaning - Google Patents
A kind of pulse generating unit for gas cleaning Download PDFInfo
- Publication number
- CN107081046A CN107081046A CN201710485934.2A CN201710485934A CN107081046A CN 107081046 A CN107081046 A CN 107081046A CN 201710485934 A CN201710485934 A CN 201710485934A CN 107081046 A CN107081046 A CN 107081046A
- Authority
- CN
- China
- Prior art keywords
- pulse
- generating unit
- pulse generating
- energy
- insulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B01D53/32—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 by electrical effects other than those provided for in group B01D61/00
- B01D53/323—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 by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
- B03C3/70—Applications of electricity supply techniques insulating in electric separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma Technology (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention provides a kind of pulse generating unit for gas cleaning, on the one hand the device improves the technical scheme that traditional pulse generating means sets pulse power insulator and discharge electrode insulator respectively, directly the pulse power is connected with discharge electrode with an insulator, so as to reduce cable length and the inductance in loop, rising edge of a pulse is diminished, improve the efficiency that unit of electrical energy produces plasma；On the other hand by using tandem high pressure switches set, the voltage of primary pulse is added, so as to reduce the no-load voltage ratio of pulse transformer, the efficiency of pulse transformer is improved；Gas cleaning is used it for improve gas cleaning efficiency on the basis of reduction energy consumption, meet environmental requirement.Test result indicates that, the pulse generating unit that the present invention is provided, which is used for gas cleaning, to be reduced to flue gas pollutant concentration of emission：SO2 35mg/m3, NOx 50mg/m3, dust 5mg/m3；And 38KV, energy-conservation 24% are reduced to by 50KW compared to traditional pulse generating means power consumption.
Description
Technical field
The present invention relates to atmosphere pollution Treatment process field, more specifically, it is related to a kind of for gas cleaning
Pulse generating unit.
Background technology
In recent years, increasingly serious with China's environmental problem, the environmental protection standard of China also get over by more and more higher, environmental protection policy
Come stricter.Such as《Fossil-fuel power plant atmospheric pollutant emission standard (GB 13223-2011)》Define the thermal power generation of key area
The flue gas pollutant concentration of emission limit value of factory is：SO2 50mg/m3, NOx 100mg/m3, dust 20mg/m3；And National Development and Reform Committee,
Chinese Ministry of Environmental Protection, National Energy Board combined what is printed and distributed in 2014《Coal electricity energy-saving and emission-reduction upgrading and transformation action plan (2014-2020
Year)》, the flue gas pollutant concentration of emission limit value in the thermal power plant of some areas is entered one and is reduced to：SO2 35mg/m3,
NOx 50mg/m3, dust 10mg/m3.In addition, the provincial standard more tightened up than national standard, such as Shanxi have also been put into effect in some provinces
General office of provincial people's government《Implementation guideline on promoting the whole province's Thermal generation unit minimum discharge》, the firepower of Shanxi Province is sent out
The flue gas pollutant concentration of emission limit value of power plant enters one and is reduced to：SO2 35mg/m3, NOx 50mg/m3, dust 5mg/m3.And
And, issued according in November, 2016《Control pollutant emission licence system embodiment》, the discharge implementation total amount control of pollutant
System, it is meant that under certain condition, the concentration of emission of pollutant will further decrease.Therefore, skill is administered for atmosphere pollution
For art, it is badly in need of Innovation ＆ environment technology.
At present, pulsed plasma flue gases purification as it is a kind of it is novel, can realize multiple pollutant integration
The atmosphere pollution Treatment process of removing, by researcher's extensive concern.The technology be using gas discharge produce grade from
Daughter chemically reacts produce pollutant component, the method for generating innocuous substance.Specifically, gas discharge is produced between electrode
Neutral molecule, has been excited into free radical, with H by raw plasma2Exemplified by O molecules, H and OH can be provoked into free
Base, these free radicals are by SO2Become H2SO4, NOxBecome HNO3, simple substance Hg becomes HgO etc.；Wherein, H2SO4And HNO3One can be entered
Step is with adding the NH in reactor3Gas changes into ammonium sulfate and ammonium nitrate, and ammonium sulfate, ammonium nitrate and HgO are solids
Matter, can be collected, so as to realize the purified treatment of flue gas in the electrostatic field that gas discharge is produced.
But, the key of the technology is to provide pulse voltage, it is necessary to using pulse generating unit, on the one hand due to commercially available
Low-voltage semiconductor switch pressure voltage it is general in 2000-3000V, therefore, use the arteries and veins of the pulse generating unit of single switch
The no-load voltage ratio for rushing transformer is larger, typically more than 30, and the no-load voltage ratio of armature winding and secondary windings is big, and system inductance is big, pulse
Forward position is delayed, so that reactor energy injection efficiency is low, energy consumption big, and high energy consumption seriously constrains pulsed plasma flue gas one
The development of body purification techniques, in the demonstration project of some early stages, power consumption is about the 2% of power plant generated energy, therefore, the skill
Art occurred so far, large-scale engineer applied not being realized from 1986；It is used for gas cleaning in another aspect conventional art
Pulse generating unit voltage waveform in, rising edge is too slow, cause unit of electrical energy produce plasma it is less efficient so that
Constrain gas cleaning efficiency, it is impossible to meet increasingly strict flue gas pollutant emission concentration standard.
The content of the invention
In view of this, it is an object of the invention to provide a kind of pulse generating unit for gas cleaning, the present invention is carried
The pulse generating unit of confession is used for gas cleaning and can improved gas cleaning efficiency on the basis of reduction energy consumption, meet environmental protection
It is required that.
The invention provides a kind of pulse generating unit for gas cleaning, including：
Power supply fuel tank；
It is arranged on the pulse power of the power supply fuel tank internal；
The pulse power includes：
Energy-storage capacitor, the input of the energy-storage capacitor is connected with dc source；
The pulse transformer that input is connected with the output end of the energy-storage capacitor, the pulse transformer and energy storage electricity
Tandem high pressure switches set and the first magnetic switch are in series between container；
The first magnetic compression capacitor that input is connected with the output end of the pulse transformer, the first magnetic compression electricity
The output end of container is provided with the second magnetic switch；
The second magnetic compression capacitor that input is connected with the output end of the first magnetic compression capacitor, second magnetic
The output end of compression capacitor is provided with the 3rd magnetic switch；
It is arranged on the insulator of the power supply tank bottoms；
The field case being connected with the insulator；
Be arranged on the discharge electrode inside the field case, the input of the discharge electrode under the cladding of insulator with institute
The output end for stating the second magnetic compression capacitor is connected.
It is preferred that, the oil in the power supply fuel tank carries out forced circulation by oil pump；It is described to carry out the oily of forced circulation
Flow velocity is 0.5m/s~1.5m/s.
It is preferred that, the energy-storage capacitor is made up of the pulsed capacitance connection in series-parallel of multiple low inductance；
The voltage stabilization of the energy-storage capacitor is in 8KV~12KV.
It is preferred that, the pulse transformer is the pulse transformer with Fe-based amorphous alloy iron core.
It is preferred that, the tandem high pressure switches set is in series by multiple reverse-conducting transistors；The reverse-conducting is brilliant
The number of body pipe is 5~20.
It is preferred that, metal fin is provided between two neighboring reverse-conducting transistor.
It is preferred that, first magnetic switch is iron based nano crystal magnetic switch.
It is preferred that, the conducting voltage of second magnetic switch is 80KV~120KV.
It is preferred that, the insulator draws insulator for the internal high pressure provided with electric heater unit；The insulator is stretched into
In field case.
Present invention also offers a kind of application of pulse generating unit in pulsed plasma gas cleaning；The pulse
Generating means is the pulse generating unit for gas cleaning described in above-mentioned technical proposal.
The invention provides a kind of pulse generating unit for gas cleaning, including：Power supply fuel tank；It is arranged on the electricity
The pulse power of source fuel tank internal；The pulse power includes：Energy-storage capacitor, the input and direct current of the energy-storage capacitor
Power supply is connected；The pulse transformer that input is connected with the output end of the energy-storage capacitor, the pulse transformer and energy storage
Tandem high pressure switches set and the first magnetic switch are in series between capacitor；Input is connected with the output end of the pulse transformer
The first magnetic compression capacitor, the output end of the first magnetic compression capacitor is provided with the second magnetic switch；Input and described the
The second connected magnetic compression capacitor of the output end of one magnetic compression capacitor, the output end of the second magnetic compression capacitor is provided with
3rd magnetic switch；It is arranged on the insulator of the power supply tank bottoms；The field case being connected with the insulator；It is arranged on institute
State the discharge electrode inside field case, the input of the discharge electrode under the cladding of insulator with the second magnetic compression electric capacity
The output end of device is connected.Compared with prior art, on the one hand the pulse generating unit that the present invention is provided improves traditional pulse hair
Generating apparatus sets the technical scheme of pulse power insulator and discharge electrode insulator respectively, directly with an insulator that pulse is electric
Source is connected with discharge electrode, so as to reduce cable length and the inductance in loop, rising edge of a pulse is diminished, improves unit of electrical energy
Produce the efficiency of plasma；On the other hand by using tandem high pressure switches set, the voltage of primary pulse is added, so as to subtract
The no-load voltage ratio of small pulse transformer, improves the efficiency of pulse transformer；It follows that the pulse generating unit that the present invention is provided is used for
Gas cleaning can improve gas cleaning efficiency, meet environmental requirement on the basis of reduction energy consumption.Test result indicates that, this
The pulse generating unit that invention is provided, which is used for gas cleaning, to be reduced to flue gas pollutant concentration of emission：SO2 35mg/m3,
NOx 50mg/m3, dust 5mg/m3；And 38KV, energy-conservation 24% are reduced to by 50KW compared to traditional pulse generating means power consumption.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the structural representation of the pulse generating unit provided in an embodiment of the present invention for gas cleaning；
Fig. 2 is that the pictorial diagram of insulator in the pulse generating unit provided in an embodiment of the present invention for gas cleaning is (outer
Portion)；
Fig. 3 is that the pictorial diagram of insulator in the pulse generating unit provided in an embodiment of the present invention for gas cleaning is (interior
Portion)；
Fig. 4 is the pictorial diagram of discharge electrode in the pulse generating unit provided in an embodiment of the present invention for gas cleaning；
The structural representation for the pulse generating unit for gas cleaning that Fig. 5 provides for comparative example.
Embodiment
Below in conjunction with the embodiment of the present invention, technical scheme is clearly and completely described, it is clear that institute
The embodiment of description is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this hair
The scope of bright protection.
The invention provides a kind of pulse generating unit for gas cleaning, including：
Power supply fuel tank；
It is arranged on the pulse power of the power supply fuel tank internal；
The pulse power includes：
Energy-storage capacitor, the input of the energy-storage capacitor is connected with dc source；
The pulse transformer that input is connected with the output end of the energy-storage capacitor, the pulse transformer and energy storage electricity
Tandem high pressure switches set and the first magnetic switch are in series between container；
The first magnetic compression capacitor that input is connected with the output end of the pulse transformer, the first magnetic compression electricity
The output end of container is provided with the second magnetic switch；
The second magnetic compression capacitor that input is connected with the output end of the first magnetic compression capacitor, second magnetic
The output end of compression capacitor is provided with the 3rd magnetic switch；
It is arranged on the insulator of the power supply tank bottoms；
The field case being connected with the insulator；
Be arranged on the discharge electrode inside the field case, the input of the discharge electrode under the cladding of insulator with institute
The output end for stating the second magnetic compression capacitor is connected.
Fig. 1 is referred to, Fig. 1 is the structural representation of the pulse generating unit provided in an embodiment of the present invention for gas cleaning
Figure, wherein, 1 is power supply fuel tank, and 2 be energy-storage capacitor, and 3 be pulse transformer, and 4 be tandem high pressure switches set, and 5 be that the first magnetic is opened
Close, 6 be the first magnetic compression capacitor, and 7 be the second magnetic switch, and 8 be the second magnetic compression capacitor, and 9 be the 3rd magnetic switch, and 10 be exhausted
Edge, 11 be field case, and 12 be discharge electrode.
In the present invention, the pulse generating unit for gas cleaning include power supply fuel tank (1), the pulse power, absolutely
Edge (10), field case (11) and discharge electrode (12).In the present invention, cooling is filled with the power supply fuel tank (1)
Oil, can make the pulse power have preferable heat endurance；To the energy-storage capacitor (2) in the pulse power, the first magnetic compression electricity
Container (6) and the second magnetic compression capacitor (8), the present invention are realized cold in oil by being placed in power supply fuel tank (1)
But, so as to improve heat-sinking capability, reliability is improved；And to the tandem high pressure switches set (4) in the pulse power, pulse transformer
(3) the larger component of caloric value such as, the present invention passes through carries out diversion Design to oily runner in power supply fuel tank (1), limits cooling
Circulating cooling is carried out under certain flow rate with oil, it is ensured that its normal work.In the present invention, the oil in the power supply fuel tank (1)
It is preferred that carrying out forced circulation by oil pump；The oily flow velocity for carrying out forced circulation is preferably 0.5m/s~1.5m/s, more excellent
Elect 1m/s as.
In the present invention, the pulse power is arranged on power supply fuel tank (1) inside, for producing the arteries and veins for gas cleaning
Rush voltage.In the present invention, the pulse power includes：
Energy-storage capacitor (2), the input of the energy-storage capacitor is connected with dc source；
The pulse transformer (3) that input is connected with the output end of the energy-storage capacitor (2), the pulse transformer
(3) tandem high pressure switches set (4) and the first magnetic switch (5) are in series between energy-storage capacitor (2)；
The first magnetic compression capacitor (6) that input is connected with the output end of the pulse transformer (3), first magnetic
The output end of compression capacitor (6) is provided with the second magnetic switch (7)；
The second magnetic compression capacitor (8) that input is connected with the output end of the first magnetic compression capacitor (6), it is described
The output end of second magnetic compression capacitor (8) is provided with the 3rd magnetic switch (9).
In the present invention, the energy-storage capacitor (2) is used to form primary pulse；The energy-storage capacitor (2) is provided with defeated
Enter end and output end, wherein, the input of the energy-storage capacitor (2) is connected with dc source, so as to realize charging；The storage
The output end of energy capacitor (2) is connected with the input of pulse transformer (3), so that energy-storage capacitor (2) and pulse transforming
Device (3) side inductance forms LC resonance and produces current impulse.
In the present invention, the dc source by series parallel resonance circuit conversion be Constant Electric Current to energy-storage capacitor (2)
Charged, the charging interval, it is not specifically limited to this by the present invention preferably within 1ms.
In the present invention, the energy-storage capacitor (2) is preferably made up of the pulsed capacitance connection in series-parallel of multiple low inductance；It is described
The voltage of energy-storage capacitor (2) is preferred stable in 8KV~12KV, so as to be conducive to controlling the no-load voltage ratio of pulse transformer (3).
In the present invention, the pulse transformer (3) is used to boost primary pulse；The pulse transformer (3) is provided with
Input and output end, wherein, the input of the pulse transformer (3) is connected with the output end of the energy-storage capacitor (2),
So that low-pressure side of the pulse transformer (3) with energy-storage capacitor (2) in pulse transformer (3) forms closed circuit；The arteries and veins
The output end for rushing transformer (3) is connected with the input of the first magnetic compression capacitor (6), so that pulse transformer (3) and the
One magnetic compression capacitor (6) forms closed circuit in the high-pressure side of pulse transformer (3).In the present invention, the pulse transforming
Device (3) is preferably the pulse transformer with Fe-based amorphous alloy iron core, it is possible to increase efficiency.
In the present invention, it is in series with tandem high pressure switches set between the pulse transformer (3) and energy-storage capacitor (2)
(4) and the first magnetic switch (5), so that energy-storage capacitor (2), tandem high pressure switches set (4), the first magnetic switch (5) and pulse
Transformer (3) is sequentially connected in series to form closed circuit in the low-pressure side of pulse transformer (3).In the present invention, the tandem high pressure
Switches set (4) can increase the voltage of primary pulse, so as to reduce the no-load voltage ratio of pulse transformer, improve the effect of pulse transformer
Rate.In the present invention, the tandem high pressure switches set (4) is preferably in series by multiple reverse-conducting transistors (RSD)；It is described
The number of reverse-conducting transistor is preferably 5~20, more preferably 8~10.
In the present invention, it is preferably provided with metal fin between two neighboring reverse-conducting transistor；The heat dissipation metal
Piece can increase the area of dissipation of two neighboring reverse-conducting transistor, so that tandem high pressure switches set (4) can stablize work
Make.In the present invention, the metal fin is clamped on the contact surface of two neighboring reverse-conducting transistor, then uses insulation material
Material is fastened, and the present invention does not have special limit to the connected mode of the metal fin and two neighboring reverse-conducting transistor
System.In the present invention, the area of dissipation of the metal fin is preferably the contact surface face of two neighboring reverse-conducting transistor
Long-pending 10 times~15 times.
In the present invention, first magnetic switch (5) can turn on after magnetic core saturation, for tandem high pressure switches set
(4) turned on when reversely preliminary filling is triggered.In the present invention, first magnetic switch (5) is preferably iron based nano crystal magnetic switch.
In the present invention, the first magnetic compression capacitor (6) is used for the pulse voltage that will be boosted through pulse transformer (3)
The first second compression sharpening is carried out, gas cleaning effect is improved；The first magnetic compression capacitor (6) is provided with input and output
End, wherein, the input of the first magnetic compression capacitor (6) is connected with the output end of the pulse transformer (3), so that
Pulse transformer (3) forms closed circuit with the first magnetic compression capacitor (6) in the high-pressure side of pulse transformer (3)；Described
The output end of one magnetic compression capacitor (6) is connected with the input of the second magnetic compression capacitor (8), for will be through the first magnetic compression
The pulse voltage that the second compression of capacitor (6) first is sharpened carries out the second second compression sharpening.In the present invention, first magnetic compression
Capacitor (6) is preferably made up of the pulsed capacitance connection in series-parallel of multiple low inductance, and it is not specifically limited to this by the present invention.
In the present invention, the output end of the first magnetic compression capacitor (6) is provided with the second magnetic switch (7), for the
The voltage of one magnetic compression capacitor (6) reaches to be turned on when output is required.In the present invention, second magnetic switch (7) is preferably
Iron based nano crystal magnetic switch.In the present invention, the conducting voltage of second magnetic switch (7) is preferably 80KV~120KV, more excellent
Elect 100KV as.
In the present invention, the second magnetic compression capacitor (8) is used to for the first time press through the first magnetic compression capacitor (6)
The pulse voltage that contracting is sharpened carries out the second second compression sharpening, further improves gas cleaning effect；The second magnetic compression electric capacity
Device (8) is provided with input and output end, wherein, input and first magnetic compression of the second magnetic compression capacitor (8)
The output end of capacitor (6) is connected；The output end of the second magnetic compression capacitor (8) and the input of the discharge electrode (12)
It is connected, for exporting the pulse voltage for gas cleaning to electric field.In the present invention, the second magnetic compression capacitor (8)
It is preferred that the pulsed capacitance connection in series-parallel by multiple low inductance is constituted, it is not specifically limited to this by the present invention.
In the present invention, the output end of the second magnetic compression capacitor (8) is provided with the 3rd magnetic switch (9), for the
The voltage of two magnetic compression capacitors (8) reaches to be turned on when output is required.In the present invention, the 3rd magnetic switch (9) is preferably
Iron based nano crystal magnetic switch.In the present invention, the conducting voltage of the 3rd magnetic switch (9) is preferably 80KV~120KV, more excellent
Elect 100KV as.
In the present invention, the insulator (10) is arranged on power supply fuel tank (1) bottom, the reality of the insulator (10)
Thing figure is referring to shown in Fig. 2~3.In the present invention, the insulator (10) is used between field case (11) and discharge electrode (12)
Realize insulation.In the present invention, the insulator (10) is preferably that the internal high pressure provided with electric heater unit draws insulator；If
Put under conditions of electric heater unit ensure that insulator (10) and smoke contacts, surface does not condense.
In the present invention, the field case (11) is connected with the bottom of insulator (10).In the present invention, the insulation
Sub (10) are preferably extended into field case.In the present invention, discharge electrode (12) is provided with inside the field case (11), it is described to put
The pictorial diagram of electrode (12) is as shown in Figure 4.In the present invention, cladding of the input of the discharge electrode (12) in insulator (10)
It is lower to be connected with the output end of the second magnetic compression capacitor (8).
Present invention also offers a kind of application of pulse generating unit in pulsed plasma gas cleaning；The pulse
Generating means is the pulse generating unit for gas cleaning described in above-mentioned technical proposal.In the present invention, it is described to be used for cigarette
The course of work of the pulse generating unit of gas purification is as follows：
First, dc source is that Constant Electric Current charges to energy-storage capacitor (2) by series parallel resonance circuit conversion, is reached
To after operating voltage, provide reverse trigger current to tandem high pressure switches set (4) and turn on, now the first magnetic switch (5) due to
Magnetic core saturation is also switched on, and energy-storage capacitor (2) and pulse transformer (3) side inductance form LC resonance and produce primary pulse；
Then, primary pulse boosts through pulse transformer (3), then carries out first time pressure through the first magnetic compression capacitor (6)
Contracting is sharpened, and voltage reaches when output is required that the second magnetic switch (7) is turned on, and further carries out the through the second magnetic compression capacitor (8)
Second-compressed is sharpened, and voltage reaches to be turned on by the 3rd magnetic switch (9) again when output is required, voltage pulse output is in insulator (10)
Cladding under to discharge electrode (12)；
Finally, pulse voltage carries out gas cleaning by discharge electrode (12) in field case (11) to gas discharge.
The invention provides a kind of pulse generating unit for gas cleaning, including：Power supply fuel tank；It is arranged on the electricity
The pulse power of source fuel tank internal；The pulse power includes：Energy-storage capacitor, the input and direct current of the energy-storage capacitor
Power supply is connected；The pulse transformer that input is connected with the output end of the energy-storage capacitor, the pulse transformer and energy storage
Tandem high pressure switches set and the first magnetic switch are in series between capacitor；Input is connected with the output end of the pulse transformer
The first magnetic compression capacitor, the output end of the first magnetic compression capacitor is provided with the second magnetic switch；Input and described the
The second connected magnetic compression capacitor of the output end of one magnetic compression capacitor, the output end of the second magnetic compression capacitor is provided with
3rd magnetic switch；It is arranged on the insulator of the power supply tank bottoms；The field case being connected with the insulator；It is arranged on institute
State the discharge electrode inside field case, the input of the discharge electrode under the cladding of insulator with the second magnetic compression electric capacity
The output end of device is connected.Compared with prior art, on the one hand the pulse generating unit that the present invention is provided improves traditional pulse hair
Generating apparatus sets the technical scheme of pulse power insulator and discharge electrode insulator respectively, directly with an insulator that pulse is electric
Source is connected with discharge electrode, so as to reduce cable length and the inductance in loop, rising edge of a pulse is diminished, improves unit of electrical energy
Produce the efficiency of plasma；On the other hand by using tandem high pressure switches set, the voltage of primary pulse is added, so as to subtract
The no-load voltage ratio of small pulse transformer, improves the efficiency of pulse transformer；It follows that the pulse generating unit that the present invention is provided is used for
Gas cleaning can improve gas cleaning efficiency, meet environmental requirement on the basis of reduction energy consumption.Test result indicates that, this
The pulse generating unit that invention is provided, which is used for gas cleaning, to be reduced to flue gas pollutant concentration of emission：SO2 35mg/m3,
NOx 50mg/m3, dust 5mg/m3；And 38KV, energy-conservation 24% are reduced to by 50KW compared to traditional pulse generating means power consumption.
In order to further illustrate the present invention, it is described in detail below by following examples.
Embodiment 1
Using the pulse generating unit for gas cleaning described in above-mentioned technical proposal, wherein, tandem high pressure switches set
(4) it is in series by 10 reverse-conducting transistors, the operating voltage of each reverse-conducting transistor is 1KV, and tandem high pressure is opened
Pass group (4) operating voltage is 10KV；The design capacitance amount of energy-storage capacitor (2) is 2 μ F, rated insulation voltage value 16KV, in design work
It is 100J to make storage energy under voltage 10KV；
The design no-load voltage ratio of pulse transformer (3) is 10, and design output voltage is 100KV, it is desirable to pulse transformer (3) leakage inductance
For 5 μ H；The pulsactor of first magnetic switch (5) is 3 μ H, and wiring inductance is less than 2 μ H, pulse transformer (3) is exported in pulse
The time of liter is about 10 μ s；
Pulse transformer (3) output voltage is the pulse that 100KV, pulsewidth are 20us, the first magnetic compression electric capacity to 15nF
Device (6) charges, when voltage reaches 100KV, the second magnetic switch (7) conducting, further exports the second magnetic compression electric capacity to 15nF
Device (8) is charged, when voltage reaches 100KV, and the 3rd magnetic switch (9) conducting, two grades of magnetic compression for completing pulse voltage are sharpened, and are obtained
Pulse voltage is 100KV, pulse front edge 200ns, pulse width 500ns；
The pulse voltage carries out gas cleaning by discharge electrode (12) in field case (11) to gas discharge.
Flue gas flow to be clean is 20000m3Waste concentration is contaminated in/h, raw flue gas is respectively：SO2 50mg/m3, NOx
100mg/m3, dust 20mg/m3, carry out pollutant concentration after gas cleaning and be reduced to SO2 35mg/m3, NOx 50mg/m3, dust
5mg/m3.Meanwhile, the power consumption for the pulse generating unit for gas cleaning that embodiment 1 is provided is 38KW.
Embodiment 2
Using the pulse generating unit for gas cleaning described in above-mentioned technical proposal, wherein, tandem high pressure switches set
(4) it is in series by 8 reverse-conducting transistors, the operating voltage of each reverse-conducting transistor is 1KV, tandem high pressure switch
Group (4) operating voltage is 8KV；The design capacitance amount of energy-storage capacitor (2) is 2 μ F, rated insulation voltage value 16KV, in design work electricity
It is 64J to press storage energy under 8KV；
The design no-load voltage ratio of pulse transformer (3) is 10, and design output voltage is 80KV, it is desirable to pulse transformer (3) leakage inductance
For 5 μ H；The pulsactor of first magnetic switch (5) is 3 μ H, and wiring inductance is less than 2 μ H, pulse transformer (3) is exported in pulse
The time of liter is about 10 μ s；
Pulse transformer (3) output voltage is the pulse that 80KV, pulsewidth are 20us, the first magnetic compression capacitor to 15nF
(6) charge, when voltage reaches 80KV, the second magnetic switch (7) conducting further exports the second magnetic compression capacitor to 15nF
(8) charge, when voltage reaches 80KV, the 3rd magnetic switch (9) conducting, two grades of magnetic compression for completing pulse voltage are sharpened, and obtain arteries and veins
Voltage is rushed for 80KV, pulse front edge 200ns, pulse width 500ns；
The pulse voltage carries out gas cleaning by discharge electrode (12) in field case (11) to gas discharge.
Flue gas flow to be clean is 20000m3Waste concentration is contaminated in/h, raw flue gas is respectively：SO2 50mg/m3, NOx
100mg/m3, dust 20mg/m3, carry out pollutant concentration after gas cleaning and be reduced to SO2 35mg/m3, NOx 50mg/m3, dust
5mg/m3。
Comparative example
Using embodiment 1 provide the pulse generating unit for gas cleaning, distinguish be by insulator (10) according to
The design method of traditional pulse generating means sets pulse power insulator and discharge electrode insulator shown in Figure 5 respectively, its
In, 1 is power supply fuel tank, and 2 be energy-storage capacitor, and 3 be pulse transformer, and 4 be tandem high pressure switches set, and 5 be the first magnetic switch, 6
It is the second magnetic switch for the first magnetic compression capacitor, 7,8 be the second magnetic compression capacitor, and 9 be the 3rd magnetic switch, and 10 be pulse electricity
Source insulator, 11 be field case, and 12 be discharge electrode, and 13 be discharge electrode insulator.
The power consumption for the pulse generating unit for gas cleaning that comparative example is provided is 50KW.
The described above of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.It is right
A variety of modifications of these embodiments will be apparent for those skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with principles disclosed herein and features of novelty
Most wide scope.
Claims (10)
1. a kind of pulse generating unit for gas cleaning, including：
Power supply fuel tank；
It is arranged on the pulse power of the power supply fuel tank internal；
The pulse power includes：
Energy-storage capacitor, the input of the energy-storage capacitor is connected with dc source；
The pulse transformer that input is connected with the output end of the energy-storage capacitor, the pulse transformer and energy-storage capacitor
Between be in series with tandem high pressure switches set and the first magnetic switch；
The first magnetic compression capacitor that input is connected with the output end of the pulse transformer, the first magnetic compression capacitor
Output end be provided with the second magnetic switch；
The second magnetic compression capacitor that input is connected with the output end of the first magnetic compression capacitor, second magnetic compression
The output end of capacitor is provided with the 3rd magnetic switch；
It is arranged on the insulator of the power supply tank bottoms；
The field case being connected with the insulator；
It is arranged on the discharge electrode inside the field case, the input of the discharge electrode is under the cladding of insulator with described
The output end of two magnetic compression capacitors is connected.
2. pulse generating unit according to claim 1, it is characterised in that the oil in the power supply fuel tank is entered by oil pump
Row forced circulation；The oily flow velocity for carrying out forced circulation is 0.5m/s~1.5m/s.
3. pulse generating unit according to claim 1, it is characterised in that the energy-storage capacitor is by multiple low inductance
Pulsed capacitance connection in series-parallel is constituted；
The voltage stabilization of the energy-storage capacitor is in 8KV~12KV.
4. pulse generating unit according to claim 1, it is characterised in that the pulse transformer is with Fe-based amorphous
The pulse transformer of alloy-iron core.
5. pulse generating unit according to claim 1, it is characterised in that the tandem high pressure switches set is by multiple reverse
Conducting transistor is in series；The number of the reverse-conducting transistor is 5~20.
6. pulse generating unit according to claim 5, it is characterised in that set between two neighboring reverse-conducting transistor
There is metal fin.
7. pulse generating unit according to claim 1, it is characterised in that first magnetic switch is iron based nano crystal magnetic
Switch.
8. pulse generating unit according to claim 1, it is characterised in that the conducting voltage of second magnetic switch is
80KV~120KV.
9. pulse generating unit according to claim 1, it is characterised in that the insulator is to be internal provided with electrical heating dress
The high pressure put draws insulator；The insulator is stretched into field case.
10. a kind of application of pulse generating unit in pulsed plasma gas cleaning；The pulse generating unit is right
It is required that the pulse generating unit for gas cleaning described in 1~9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485934.2A CN107081046B (en) | 2017-06-23 | 2017-06-23 | Pulse generating device for purifying flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485934.2A CN107081046B (en) | 2017-06-23 | 2017-06-23 | Pulse generating device for purifying flue gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107081046A true CN107081046A (en) | 2017-08-22 |
| CN107081046B CN107081046B (en) | 2023-10-17 |
Family
ID=59607091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710485934.2A Active CN107081046B (en) | 2017-06-23 | 2017-06-23 | Pulse generating device for purifying flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107081046B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110662337A (en) * | 2019-10-15 | 2020-01-07 | 浙江佳环电子有限公司 | Pulse corona plasma high-voltage power supply |
| CN111187646A (en) * | 2018-11-14 | 2020-05-22 | 西安闪光能源科技有限公司 | Method and device for producing hydrogen by using instantaneous supercritical coal |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5623171A (en) * | 1989-09-14 | 1997-04-22 | Hitachi Metals, Ltd. | High-voltage pulse generating circuit and electrostatic recipitator containing it |
| JPH09245936A (en) * | 1996-09-30 | 1997-09-19 | Masuda Yoshiko | Gas plasma processing device |
| US5845488A (en) * | 1996-08-19 | 1998-12-08 | Raytheon Company | Power processor circuit and method for corona discharge pollutant destruction apparatus |
| CN2667386Y (en) * | 2003-10-22 | 2004-12-29 | 西安交通大学 | Low-temperature plasma indoor air purifier |
| JP2005222779A (en) * | 2004-02-04 | 2005-08-18 | Ngk Insulators Ltd | Plasma processing device |
| CN102409525A (en) * | 2011-09-13 | 2012-04-11 | 上海理工大学 | Low temperature plasma generating device and control method thereof |
| CN102931867A (en) * | 2012-10-10 | 2013-02-13 | 西安交通大学 | Pulse voltage-multiplying generation device with repetition frequency |
| CN105024585A (en) * | 2015-08-05 | 2015-11-04 | 南京国电环保科技有限公司 | Serial-type pulse voltage generating device and method |
| CN105553322A (en) * | 2015-12-11 | 2016-05-04 | 浙江大维高新技术股份有限公司 | Power source device for plasma generation |
| CN106422704A (en) * | 2016-11-04 | 2017-02-22 | 浙江大学 | Integrated system for deeply removing various pollutants |
| CN206897141U (en) * | 2017-06-23 | 2018-01-19 | 杭州天明环保工程有限公司 | A kind of pulse generating unit for gas cleaning |
-
2017
- 2017-06-23 CN CN201710485934.2A patent/CN107081046B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5623171A (en) * | 1989-09-14 | 1997-04-22 | Hitachi Metals, Ltd. | High-voltage pulse generating circuit and electrostatic recipitator containing it |
| US5845488A (en) * | 1996-08-19 | 1998-12-08 | Raytheon Company | Power processor circuit and method for corona discharge pollutant destruction apparatus |
| JPH09245936A (en) * | 1996-09-30 | 1997-09-19 | Masuda Yoshiko | Gas plasma processing device |
| CN2667386Y (en) * | 2003-10-22 | 2004-12-29 | 西安交通大学 | Low-temperature plasma indoor air purifier |
| JP2005222779A (en) * | 2004-02-04 | 2005-08-18 | Ngk Insulators Ltd | Plasma processing device |
| CN102409525A (en) * | 2011-09-13 | 2012-04-11 | 上海理工大学 | Low temperature plasma generating device and control method thereof |
| CN102931867A (en) * | 2012-10-10 | 2013-02-13 | 西安交通大学 | Pulse voltage-multiplying generation device with repetition frequency |
| CN105024585A (en) * | 2015-08-05 | 2015-11-04 | 南京国电环保科技有限公司 | Serial-type pulse voltage generating device and method |
| CN105553322A (en) * | 2015-12-11 | 2016-05-04 | 浙江大维高新技术股份有限公司 | Power source device for plasma generation |
| CN106422704A (en) * | 2016-11-04 | 2017-02-22 | 浙江大学 | Integrated system for deeply removing various pollutants |
| CN206897141U (en) * | 2017-06-23 | 2018-01-19 | 杭州天明环保工程有限公司 | A kind of pulse generating unit for gas cleaning |
Non-Patent Citations (2)
| Title |
|---|
| 任燕 等: "《脉冲增强及移动电极技术在火电厂除尘改造中的应用》", 中国电力, vol. 49, no. 9, pages 181 - 184 * |
| 劳动部培训司编写: "《汽车电气构造、原理与检修 上 汽车电气设备》", 北京理工大学出版社, pages: 172 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187646A (en) * | 2018-11-14 | 2020-05-22 | 西安闪光能源科技有限公司 | Method and device for producing hydrogen by using instantaneous supercritical coal |
| CN111187646B (en) * | 2018-11-14 | 2021-03-23 | 西安闪光能源科技有限公司 | Method and device for producing hydrogen by using instantaneous supercritical coal |
| CN110662337A (en) * | 2019-10-15 | 2020-01-07 | 浙江佳环电子有限公司 | Pulse corona plasma high-voltage power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107081046B (en) | 2023-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Matsumoto et al. | Energy efficiency improvement of nitric oxide treatment using nanosecond pulsed discharge | |
| CN105958823A (en) | Current continuous high-gain switch voltage rise quasi-Z-source converter circuit | |
| CN102847610B (en) | DC composite pulse high voltage power supply for electrostatic precipitator | |
| CN104009633B (en) | A kind of electric current continuous high-gain DC-DC converter circuit | |
| CN205847093U (en) | A kind of electric current continuous high-gain boost switching quasi-Z source converter circuit | |
| CN101850301A (en) | DC superposed pulse electric precipitation method | |
| Dinelli et al. | Pulse power electrostatic technologies for the control of flue gas emissions | |
| CN203862395U (en) | DC superimposed impulse high-voltage power supply for electric precipitator | |
| CN107081046A (en) | A kind of pulse generating unit for gas cleaning | |
| CN205847124U (en) | A kind of switched inductors type mixes quasi-Z-source inverter | |
| CN103580501A (en) | Switched switch capacitor type AC-AC converter with fixed transformation ratio of 1/4 or 4 | |
| CN206897141U (en) | A kind of pulse generating unit for gas cleaning | |
| CN203507790U (en) | Double-medium low-temperature plasma reactor based on steep front edge nanosecond pulsed power supply | |
| CN106246296B (en) | The device and method of air plasma processing vehicle exhaust | |
| Bhattacharyya et al. | Performance of helical and straight-wire corona electrodes for NOx abatement under AC/pulse energizations | |
| CN201904738U (en) | Bipolar nanosecond high-voltage narrow-pulse generator | |
| CN204538976U (en) | Realize 1/2 nthe variable stage switching capacity type AC-AC converter of no-load voltage ratio | |
| CN204794715U (en) | A high voltage power supply for getting angry but, energy recuperation device and energy recuperation of bulk plasmon reactor | |
| CN204069467U (en) | A kind of soft switching power of activated plasma | |
| CN204179950U (en) | A kind of 2-3 type multiple no-load voltage ratio switching capacity type AC-AC converter | |
| CN101924489A (en) | Non-thermal plasma pulse power supply | |
| CN104779808A (en) | Variable switch capacitive type AC-AC convertor achieving 1/2 n no-load voltage ratio | |
| CN108421642A (en) | A kind of electric precipitation high-voltage pulse power source | |
| CN210356623U (en) | Pulse power supply for desulfurization and denitrification of industrial flue gas pulse corona plasma | |
| CN112054786A (en) | Nanosecond high-voltage pulse power supply, ozone generator and electrostatic dust collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |