CN108421642A - A kind of electric precipitation high-voltage pulse power source - Google Patents
A kind of electric precipitation high-voltage pulse power source Download PDFInfo
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- CN108421642A CN108421642A CN201810392923.4A CN201810392923A CN108421642A CN 108421642 A CN108421642 A CN 108421642A CN 201810392923 A CN201810392923 A CN 201810392923A CN 108421642 A CN108421642 A CN 108421642A
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- 238000001556 precipitation Methods 0.000 title claims abstract description 24
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 230000005684 electric field Effects 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 210000001367 artery Anatomy 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000002452 interceptive effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 210000003462 vein Anatomy 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000013081 microcrystal Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005457 optimization Methods 0.000 description 9
- 238000011160 research Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
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Classifications
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- 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
- B03C3/68—Control systems therefor
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Abstract
The present invention relates to a kind of electric precipitation high-voltage pulse power sources, including：Main loop module：For completing distributing function；Pulsed low voltage module：For giving pulse case to provide low-voltage dc power supply；Pulse tank module：Protection is absorbed when giving pulse transformer for DC power supply to be become pulse voltage, and being switched to IGBT；Control tank module：For completing to signal acquisitions such as high voltage pulse power mains input current voltage, secondary output current voltage, transformer temperature, IGBT temperature, concentration of emissions, and according to the different working method of the frequency of feedback signal adjusting inverter, generation；Pulse transformer module：Boosting for completing pulse voltage generates negative high voltage pulse；Coupling module：For completing, by the coupling of negative high voltage pulse and basic negative direct current high voltage, electric field to be transported to after coupling.The present invention improves pulse output performance, improves dust removing effects；Improved structure reduces calorific value, improves stability；More preferably to the dust removing effects of large capacity electric field.
Description
Technical field
The present invention relates to a kind of high-voltage pulse power sources, more particularly, to a kind of electric precipitation high-voltage pulse power source.
Background technology
High-voltage electrostatic dust separator is a kind of industrial flue gas cleaning equipment, and technology maturation makes relatively easy, maintenance cost
It is low, it is used widely in the industries such as electric power, cement, metallurgy, coloured, chemical industry.High voltage supply system is to determine electric precipitator effect
The key of rate, power supply mode, the difference of the method for operation and control mode, efficiency of dust collection to electrostatic precipitator and stable
Property have important influence.With continuous improvement of the country to industrial dust discharged concentration requirement in recent years, a few years ago in the market
Widely applied single phase poaer supply and three phase mains have begun to be eliminated gradually, and the market of high frequency electric source is also gradually expanding, but
It is if to reach 15mg/m3Concentration of emission, then must use superimposed pulses fundamental wave pulse power technology.Pulse power mesh
It is preceding that gradually market uses at home.
Compared with traditional high-voltage DC power supply, no matter in terms of reducing discharge or energy saving high-voltage pulse power source is
Aspect all has greater advantage.From the point of view of emission reduction effect, high-voltage pulse power source can generate higher corona voltage, Ke Yiyou
Effect improves absorption of the deduster to high resistivity dust, to improve dust removing effects.From the point of view of in terms of energy saving, high-voltage pulse electric
Source it is possible to prevente effectively from back corona phenomenon generation, so as to avoid waste electric current and save energy consumption.Current high-tension pulse
Power supply also generally existing some technological deficiencies are rushed, most important problem is that output power is less than normal, in application, can go out on big electric field
Existing crest voltage is less than normal, the bad problem of dust removing effects.
Invention content
The above-mentioned technical problem of the present invention is mainly to be addressed by following technical proposals：
A kind of electric precipitation high-voltage pulse power source, which is characterized in that including：
Main loop module：For completing distributing function；
Pulsed low voltage module：For giving pulse case to provide low-voltage dc power supply；
Pulse tank module：It is inhaled when giving pulse transformer for DC power supply to be become pulse voltage, and being switched to IGBT
Receive protection；
Control tank module：For completing to high voltage pulse power mains input current voltage, secondary output current voltage, becoming
The signal acquisitions such as depressor temperature, IGBT temperature, concentration of emission, and it is different according to the frequency of feedback signal adjusting inverter, generation
Working method；
Pulse transformer module：Boosting for completing pulse voltage generates negative high voltage pulse；
Coupling module：For completing, by the coupling of negative high voltage pulse and basic negative direct current high voltage, electricity to be transported to after coupling
.
As an optimization, main loop module includes sequentially connected breaker and A.C. contactor.
As an optimization, the three-phase transformer and rectifier bridge that pulsed low voltage module includes and connects, inductance is connected across whole
It flows on bridge.
As an optimization, pulse tank module includes the IGBT that IGBT drives and is drivingly connected with IGBT, is connected across on IGBT
Sequentially connected Absorption Capacitance and absorption resistance.
As an optimization, control tank module includes：
Impulse controller：Generate high-voltage pulse signal；
Control power module：For controlling power supply；
Conversion module is isolated in analog signals：For analog signals to be converted into digital signal；
Conversion module is isolated in digital quantity signal：For converting digital signals into analog signals；
As an optimization, control tank module also provides RS485 interfaces, RJ45 Ethernet interfaces and man-machine interactive interface.
As an optimization, pulse transformer module includes pulse transformer and resonant capacitance connected to it.
As an optimization, coupling module includes high-voltage capacitance, high voltage induction.
As an optimization, pulse transformer uses the special iron core of Superfine crystal material, to ensure enough instantaneous outputs；Arteries and veins
It rushes in output loop, IGBT selects German Infineon chip, and uses multi-channel parallel structure, instantaneous when ensureing that pulse exports
Input power is sufficiently large.Protective loop is absorbed using large bulk capacitance, fast recovery diode, high-power resistance composition, is absorbed
The energy impact that IGBT is generated when turning off；IGBT driving communications use optical-fibre communications, it is ensured that drive signal is interference-free；Pulse is female
Line is filtered using LC, ensures that pollution will not be generated to power grid when IGBT actions.
As an optimization, control tank module is when the pulse power is superimposed operation with fundamental power supply, by control tank module according to work
The variation of condition, the voltage and current to being transported to body of deduster carries out comparing calculation, automatically selects best control parameter, described
Control parameter includes high voltage pulse power mains input current voltage, secondary output current voltage, transformer temperature, IGBT temperature
Degree, concentration of emission.
Therefore, the invention has the advantages that：Pulse output performance is promoted, dust removing effects are improved；Improved structure reduces hair
Heat improves stability；More preferably to the dust removing effects of large capacity electric field.
Description of the drawings
Attached drawing 1 is a kind of schematic diagram of the present invention.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment：
In order to promote output performance, by software emulation and field test, through verifying repeatedly, it is good to have obtained stability, peace
Quan Xinggao, energy consumption small circuit structure and parts selection.
The present invention relates to IDE17 type electric precipitation high-voltage pulse power sources and the versatile interface of basic DC power supply to design skill
Art can be superimposed and be uniformly controlled with the basic DC power supply of any producer, including high frequency electric source, power frequency single phase poaer supply, power frequency three
The electric precipitations high-voltage DC power supply such as phase power supply.
Using high-voltage capacitance plus additional device superimposing technique, it can not only ensure that pulse output was interference-free, but also base can be reduced
Interfering with each other between wave and pulse, while the pulse fan-out capability when big electric field is applied can be met.
Using two-stage RCD absorbing circuits, the first order is main absorbing circuit, and absorption diode high current restores two poles soon
Pipe, capacitance use large capacity Absorption Capacitance, resistance to use high temperature resistant high-power resistance；The second level is protection absorbing circuit, is absorbed
The supper-fast low current diode of diode, capacitance uses low capacity high-performance Absorption Capacitance, for protecting IGBT module.Through meter
After calculation primarily determines that device parameters, Multi simulation running add experiment, parts selection is determined.
By software analysis and verification experimental verification, the radiator structure of main heating device is determined.Complete machine heat dissipation uses circulated air
Cooling system.Circulating air cooling system is made of high-speed centrifugal fan, inserted sheet flat radiator, transformer corrugate fin, controller.
The research to form effective air duct is mainly combined to high-speed centrifugal fan and inserted sheet flat radiator
Independent research pulse transformer, and multi-channel parallel structure is used in main circuit, using a variety of filtering, anti-interference
With the measure of absorption so that output pulse width is less than 100us, and voltage build-up rate is higher than 2kV/us, and current-rising-rate is higher than 10A/
us.It is that voltage is not less than 80kV to export pulse power, and electric current is not less than 100A.
17 type electric precipitation high-voltage pulse power sources, output form are fundamental wave and superimposed pulses, are similar to constant-current source, dash forward
So dangerous bigger of the open circuit than DC power supply.And in actual use, open circuit suddenly can not be absolutely avoided or due to behaviour
Make the open running slipped up.At this moment if cannot judge simultaneously starting protection, equipment at once will produce in a short period of time
Raw high voltage, can directly result in transformer and burn.To overcome the problems, such as this, transformer high-low-voltage winding pressure resistance technique,
Hardware circuit quickly judges, software synthesis judges to have done numerous studies experiment in terms of processing, thoroughly solves the problems, such as this.
With reference to embodiment, this case is specifically described.
17 type electric precipitations high-voltage pulse power source modular construction point：Main loop module, pulsed low voltage module, pulse case mould
Block, control tank module, pulse transformer module, coupling module.Main loop module：Mainly it is made of breaker, A.C. contactor,
It is main to complete distributing function；Pulsed low voltage module：It is made of three-phase transformer, rectifier bridge, inductance, it is main to complete to carry to pulse case
For low-voltage dc power supply；Pulse tank module：It is made of IGBT, IGBT driving, diode, Absorption Capacitance, absorption resistance, it is main complete
Protection is absorbed when giving pulse transformer at DC power supply is become pulse voltage, and being switched to IGBT；Control tank module：By arteries and veins
Controller, control power module, analog signals isolation conversion module, digital quantity signal isolation conversion module composition are rushed, is completed
To high voltage pulse power mains input current voltage, secondary output current voltage, transformer temperature, IGBT temperature, concentration of emission
Etc. signal acquisitions, and the frequency of inverter adjusted according to feedback signal, generates different working method, while RS485 being provided and is connect
Mouth, RJ45 Ethernet interfaces and man-machine interactive interface；Pulse transformer module：It is made of, completes pulse transformer, resonant capacitance
The boosting of pulse voltage generates negative high voltage pulse；Coupling module：It is mainly made of high-voltage capacitance, high voltage induction, completion will be born
The coupling of high-voltage pulse and basic negative direct current high voltage, electric field is transported to after coupling.High-voltage pulse power source is using independent development
Single field distribution formula low pressure controller unloads the concentration of grey mode etc. by the mode of heating to rapping mode, porcelain axis ash bucket, material position
The optimal control of electric precipitator control panel is realized in control, and redundancy networking is simple and reliable, improves the efficiency of dust collection of deduster,
It economizes on resources.
The present invention is mainly with the following functions：
1,17 type electric precipitation high-voltage pulse power sources pulse power export new construction, instantaneous output be up to 24MW with
On.
By the method for software emulation and field test, through repetition test, it is good to have obtained stability, safe, energy consumption
Small circuit structure and parts selection
2, the versatile interface designing technique of 17 type electric precipitation high-voltage pulse power sources and basic DC power supply.
The working method of the pulse power is to be transported to electric precipitation electric field after being superimposed with basic DC power supply.It is set to realize
Compatibility between standby, the 17 type pulse powers considered in design be superimposed with various forms of DC high-voltage power supplies use it is simultaneous
Appearance problem can be superimposed and be uniformly controlled with the basic DC power supply of any producer, including high frequency electric source, power frequency single phase poaer supply, work
The electric precipitations high-voltage DC power supply such as frequency three phase mains.
3,17 type electric precipitations high-voltage pulse power source uses modularized design, compact-sized reasonable, and it is convenient to replace, maintenance
It is low.The single field distribution formula low pressure controller of high voltage pulse power power supply joint directly controls multiloop low-voltage equipment, redundancy group
It nets simple and reliable.
3, the embedded pulse power source control device of independent research passes through and changes input voltage, pulse width, pulse frequency etc.
Power parameter is realized for different operating modes and automatically adjusts high fundamental wave output voltage, and pulse width 1-100us, pulse are automatically adjusted
Frequency 0-300Hz, pulse busbar voltage 0-2000V are to control the adaptive best power supply technique of pulse output voltage.
Pulse power source control system, when the pulse power is superimposed operation with fundamental power supply, by control system according to operating mode
Variation, the voltage and current to being transported to body of deduster carry out comparing calculation, automatically select best control parameter, realize best
Fundamental wave and impulse ratio save power consumption to greatest extent while maintaining high efficiency of dust collection.
6, independent research pulse transformer, and multi-channel parallel structure is used in main circuit, using a variety of filtering, anti-dry
Disturb and absorb measure so that output pulse width is less than 100us, and voltage build-up rate is higher than 2kV/us, and current-rising-rate is higher than
10A/us。
Independent research pulse transformer, using the special iron core of Superfine crystal material, to ensure enough instantaneous outputs；Arteries and veins
It rushes in output loop, IGBT selects the larger product of company of German Infineon, and uses multi-channel parallel structure, to ensure pulse
Instantaneous input power when output is sufficiently large.Protection is absorbed using large bulk capacitance, fast recovery diode, high-power resistance composition
Circuit absorbs the energy impact generated when IGBT shutdowns；IGBT driving communications use optical-fibre communications, it is ensured that drive signal is not by dry
It disturbs；Pulse busbar is filtered using LC, ensures that pollution will not be generated to power grid when IGBT actions.Above various measures so that output
Pulse pulse width is less than 100us, and voltage build-up rate is higher than 2kV/us, and current-rising-rate is higher than 10A/us.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of electric precipitation high-voltage pulse power source, which is characterized in that including：
Main loop module：For completing distributing function；
Pulsed low voltage module：For giving pulse case to provide low-voltage dc power supply；
Pulse tank module：It absorbs and protects when giving pulse transformer for DC power supply to be become pulse voltage, and being switched to IGBT
Shield；
Control tank module：For completing to high voltage pulse power mains input current voltage, secondary output current voltage, transformer
The signal acquisitions such as temperature, IGBT temperature, concentration of emission, and according to the different work of the frequency of feedback signal adjusting inverter, generation
Make mode；
Pulse transformer module：Boosting for completing pulse voltage generates negative high voltage pulse；
Coupling module：For completing, by the coupling of negative high voltage pulse and basic negative direct current high voltage, electric field to be transported to after coupling.
2. a kind of electric precipitation high-voltage pulse power source according to claim 1, which is characterized in that main loop module include according to
The breaker and A.C. contactor of secondary connection.
3. a kind of electric precipitation high-voltage pulse power source according to claim 1, which is characterized in that pulsed low voltage module includes
And the three-phase transformer and rectifier bridge of connection, inductance are connected across on rectifier bridge.
4. a kind of electric precipitation high-voltage pulse power source according to claim 1, which is characterized in that pulse tank module includes
The IGBT that IGBT drives and is drivingly connected with IGBT, sequentially connected Absorption Capacitance and the absorption resistance being connected across on IGBT.
5. a kind of electric precipitation high-voltage pulse power source according to claim 1, which is characterized in that controlling tank module includes：
Impulse controller：Generate high-voltage pulse signal；
Control power module：For controlling power supply；
Conversion module is isolated in analog signals：For analog signals to be converted into digital signal；
Conversion module is isolated in digital quantity signal：For converting digital signals into analog signals.
6. a kind of electric precipitation high-voltage pulse power source according to claim 1, which is characterized in that control tank module also provides
RS485 interfaces, RJ45 Ethernet interfaces and man-machine interactive interface.
7. a kind of electric precipitation high-voltage pulse power source according to claim 1, which is characterized in that pulse transformer module packet
Include pulse transformer and resonant capacitance connected to it.
8. a kind of electric precipitation high-voltage pulse power source according to claim 1, which is characterized in that coupling module includes high pressure
Capacitance, high voltage induction.
9. a kind of electric precipitation high-voltage pulse power source according to claim 1, which is characterized in that pulse transformer is using super
The special iron core of micro crystal material, to ensure enough instantaneous outputs；In pluse output circuit, IGBT selects German Infineon core
Piece, and multi-channel parallel structure is used, it is sufficiently large with Instantaneous input power when ensureing pulse output；Using large bulk capacitance, soon
Recovery diode, high-power resistance composition absorb protective loop, absorb the energy impact generated when IGBT shutdowns；IGBT drivings are logical
Letter uses optical-fibre communications, it is ensured that drive signal is interference-free；Pulse busbar is filtered using LC, and ensureing will not be to electricity when IGBT is acted
Net generates pollution.
10. a kind of electric precipitation high-voltage pulse power source according to claim 1, which is characterized in that control tank module is in arteries and veins
Rush power supply be superimposed with fundamental power supply operation when, by control tank module according to the variation of operating mode, to being transported to the electricity of body of deduster
Current voltage carries out comparing calculation, automatically selects best control parameter, the control parameter includes that high voltage pulse power power supply is defeated
Enter Current Voltage, secondary output current voltage, transformer temperature, IGBT temperature, concentration of emission, using two-stage RCD absorbing circuits,
The first order is main absorbing circuit, and absorption diode high current fast recovery diode, capacitance is using large capacity Absorption Capacitance, resistance
Using high temperature resistant high-power resistance；The second level is protection absorbing circuit, absorption diode supper-fast low current diode, capacitance
Using low capacity high-performance Absorption Capacitance, for protecting IGBT module.
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| CN201810392923.4A CN108421642A (en) | 2018-04-27 | 2018-04-27 | A kind of electric precipitation high-voltage pulse power source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622230A (en) * | 2018-12-18 | 2019-04-16 | 福建卫东环保股份有限公司 | Pulsed high voltage generator is in boiler flue gas purifying equipment |
| CN113843043A (en) * | 2021-10-29 | 2021-12-28 | 华能平凉发电有限责任公司 | Comprehensive dust removal method and device for reducing resistance of air-smoke system |
| CN114918044A (en) * | 2022-06-17 | 2022-08-19 | 安徽工业大学 | System and method for removing anode powder scale of electric dust remover by using high-frequency electric pulse |
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| CN109622230A (en) * | 2018-12-18 | 2019-04-16 | 福建卫东环保股份有限公司 | Pulsed high voltage generator is in boiler flue gas purifying equipment |
| CN113843043A (en) * | 2021-10-29 | 2021-12-28 | 华能平凉发电有限责任公司 | Comprehensive dust removal method and device for reducing resistance of air-smoke system |
| CN113843043B (en) * | 2021-10-29 | 2024-04-26 | 华能平凉发电有限责任公司 | Comprehensive dust removing method and device for reducing resistance of air and smoke system |
| CN114918044A (en) * | 2022-06-17 | 2022-08-19 | 安徽工业大学 | System and method for removing anode powder scale of electric dust remover by using high-frequency electric pulse |
| CN114918044B (en) * | 2022-06-17 | 2023-08-29 | 安徽工业大学 | System and method for removing anode powder dirt of electric dust remover by utilizing high-frequency electric pulse |
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