CN106179756A - Method for realizing electric precipitation of high-frequency high-voltage SIR power supply - Google Patents
Method for realizing electric precipitation of high-frequency high-voltage SIR power supply Download PDFInfo
- Publication number
- CN106179756A CN106179756A CN201510210866.XA CN201510210866A CN106179756A CN 106179756 A CN106179756 A CN 106179756A CN 201510210866 A CN201510210866 A CN 201510210866A CN 106179756 A CN106179756 A CN 106179756A
- Authority
- CN
- China
- Prior art keywords
- frequency
- voltage
- output
- power supply
- igbt
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001556 precipitation Methods 0.000 title claims description 9
- 239000000428 dust Substances 0.000 claims abstract description 26
- 230000008859 change Effects 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000012717 electrostatic precipitator Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 238000005367 electrostatic precipitation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Electrostatic Separation (AREA)
Abstract
The invention relates to a method for realizing electric dust removal of a high-frequency high-voltage SIR power supply, which comprises the steps of inputting a three-phase 380V 50-60 HZ alternating current power supply, forming 520V direct current voltage through three-phase controllable rectification and filtering, then inputting the voltage to a high-frequency rectifier transformer through high-frequency inversion of an IGBT module, forming 70kv through high-frequency transformation and rectification, and supplying the voltage to a polar plate of an electric dust remover through a current-limiting resistor R0. And the output current, the output voltage and the output pulse are fed back to the DSP controller to change the pulse working frequency or the pulse width and are sent to the IGBT full-bridge high-frequency inverter through the isolation driver so as to adjust the output current and the output voltage. The output open circuit protection, the short circuit protection, the overheat protection of the transformer oil and the IGBT, the output flashover control and processing and the like are all realized by the DSP controller.
Description
Technical field
The present invention relates to the electrostatic precipitation technology of a kind of novel power supply, be specifically related to the implementation method of a kind of high-frequency and high-voltage power supply being applicable to electric precipitation field.Belong to field of environment protection.
Background technology
While modern industry high speed development, inevitably bring problem of environmental pollution.Can discharge substantial amounts of dust in the production process of industrial products, dust spreads with the wind can severe contamination air, harm health of human body.Therefore before industrial smoke is discharged in air, it must be carried out dust disposal.Traditional dust collection method mainly has two kinds, and one is filtering technique, dust and air is separated；Another kind is by centrifugal action, makes gas come with dust separation；Both approaches industrially has an application, but all has that efficiency is low, process the shortcomings such as exhaust gas volumn is the tallest and the biggest, energy consumption is high.In recent years, along with the progress of Power Electronic Technique, electrostatic precipitator technology is developed rapidly, and owing to its efficiency of dust collection is high, energy consumption is little, process dust granules wide ranges and operating cost is low, has obtained increasing attention and application.
Its operation principle of electrostatic precipitator is: when in flue gas, dust grit is by high-voltage electrostatic field; collide and charged (or charged in ion diffusion motion) with interelectrode negative ions and electronics; the grit of electronics and ion anisotropy electrode movement long-pending be attached on opposite electrode under the effect of electric field force on band; the dust on electrode is made to fall in collection ash bucket by modes such as rappings; the flue gas by electric cleaner is made to be purified; reach to protect air, the purpose of protection environment.
Electrostatic precipitation has become as requisite dedusting means in China's basic industries such as Coal dressing, mining site, power plant, metallurgy, oil, chemical industry at present.
From the eighties in last century to now, the high-voltage suppling power that field of Environment Protection electric cleaner is used is essentially all and uses input for biphase controlled silicon industrial frequency phase-controlled power, this has also been done many improvement by people therebetween, such as have developed the controlled silicon industrial frequency phase-controlled power that input is changed into three-phase, amplitude modulation LC constant-current source etc., have also been made much work in terms of system control, such as feedback control amount is made into electric current by voltage, power supply regulation have employed single-chip microcomputer etc..Make a general survey of on it, be all do not catch up with environmental protection standard improve constantly and save energy and reduce the cost, the objective requirement of sustainable development, its key problem be the operating frequency of power supply be power frequency 50HZ, the power transformer and the filter inductor capacitor that cause power supply are bulky, energy-consuming consumptive material, expend space, and affect the raising of efficiency of dust collection.
Being summed up, this traditional low frequency rectifier power source T/R of electric cleaner mainly has five big shortcomings: one is that operating frequency is low, conversion efficiency as little as less than 75%, expends electric energy；Two is that operating frequency is low, and transformator and wave filter volume are big, and Heavy Weight expends substantial amounts of copper and ferrum, do not meets sustainable development, and price is the highest simultaneously, and cost performance is low；Three be power supply input for biphase 380v AC power frequency supply, be again operating frequency phase regulation, cause input power factor as little as less than 0.7, electrical network is caused the biggest electromagnetic interference, Electro Magnetic Compatibility is poor, does not meets natural harmony and develops；Four is that the Industrial Frequency Transformer of bulky power supply control and regulation cabinet and isolation boosting lives in two separate places, and expends space, increases capital cost；Five is that output ripple is big, cause corona voltage low, waveform is again single power frequency ripple, make to adapt to the operating mode of high specific resistance, do not reach the new demand (China's firepower electrical plant dust emission standard was reduced to 50 milligrams/cubic metre by 200 milligrams/cubic metre of the original nineties in 2004) of field of Environment Protection dust emission standard.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of can be under the precondition that its body of dedusting is not transformed, substitute existing industrial frequency rectifying power supply completely, simultaneously while improving efficiency of dust collection, drastically increase power factor, reduce energy resource consumption, and do not increase other device any.
The object of the present invention is achieved like this: the implementation method of a kind of high-frequency and high-voltage SIR power supply electric precipitation, said method comprising the steps of:
Step one, input three-phase 380V/50 ~ 60HZ alternating current power supply, be filtered into about 520V DC voltage through three phase rectifier；
Step 2, DC voltage through IGBT inverter bridge, resonant capacitance Cs, resonant inductance Ls and high frequency transformer composition high-frequency resonant formula inverter circuit, high-frequency inversion, frequency 15 ~ 50kHZ, input to high frequency transformer again；
Step 3, inversion waveform boost through high frequency transformer, about 70kv, then after high-frequency rectification bridge rectification, obtain voltage waveform on ESP, supply cathode of electric dust collector plate.
Step 4, output electric current, voltage, feed back to dsp controller and change pulsed operation frequency or pulse width and give IGBT full-bridge high-frequency inverter so that output current output voltage to be adjusted through driver for isolating.
The protection of step 5, output open circuit, short-circuit protection, transformer oil and the overtemperature protection of IGBT, output flashover control and process etc. are realized in the lump by digital signal processor DSP controller.
Compared with prior art, the invention has the beneficial effects as follows:
The high-frequency high-voltage switch power source SIR that the present invention uses is operated in more than 20kHZ, and compared with conventional T/R, high-frequency high-voltage switch power source SIR provides the output of the most pulsation-free direct current, and this electrostatic precipitator enable is run with spark generation point voltage.High-frequency high-voltage switch power source SIR improves supply voltage and the electric current of electrostatic precipitator, and for the thin and dust of low resistivity, electric cleaner dust emission concentration significantly reduces.If calculated by 25%, then under above-mentioned identical operating mode, high frequency switch power SIR output to exceed 56% than controlled silicon industrial frequency phase control rectifier power supply T/R, thus decreases dust emission concentration, improves efficiency of dust collection.
Accompanying drawing explanation
Fig. 1 be high-frequency and high-voltage SIR power supply electric precipitation of the present invention realize theory diagram.
Fig. 2 is medium-high frequency Switching Power Supply of the present invention and the output DC voltage waveform of controllable silicon phase control rectifier power supply T/R.
Fig. 3 is the LCC loop topology figure of high-frequency and high-voltage SIR power supply electric precipitation of the present invention.
Detailed description of the invention
As can be seen from Figure 1: the output valley point voltage that conventional electric dust collector controllable silicon power frequency phase control rectifier power supply T/R produces, lower by 25% than the output DC voltage that high-frequency high-voltage switch power source SIR produces.Valley point voltage is pilot spark in electrostatic dust remover electric field.Electric spark can suppress ionization, significantly limits the average voltage being added on electrode, has a strong impact on the efficiency of dust collection of electric cleaner.
See Fig. 2, the present invention relates to the implementation method of a kind of high-frequency and high-voltage SIR power supply electric precipitation, said method comprising the steps of:
Step one, input three-phase 380V/50 ~ 60HZ alternating current power supply, be filtered into about 520V DC voltage through three phase rectifier；
Step 2, DC voltage through IGBT inverter bridge, resonant capacitance Cs, resonant inductance Ls and high frequency transformer composition high-frequency resonant formula inverter circuit, high-frequency inversion (frequency 15 ~ 50kHZ), input to high frequency transformer, as shown in Figure 3 again；
Step 3, inversion waveform boost (about 70kv) through high frequency transformer, then after high-frequency rectification bridge rectification, obtain voltage waveform on ESP, supply cathode of electric dust collector plate.
Step 4, output electric current, voltage, feed back to dsp controller and change pulsed operation frequency or pulse width and give IGBT full-bridge high-frequency inverter so that output current output voltage to be adjusted through driver for isolating.
The protection of step 5, output open circuit, short-circuit protection, transformer oil and the overtemperature protection of IGBT, output flashover control and process etc. are realized in the lump by digital signal processor DSP controller.
Embodiment 1:
Certain steel mill 360m2Sintering device handpiece electric precipitation high frequency electric source is transformed, and 16 high frequency electric sources, for all electric fields of cleaner unit, substituted for original power frequency supply.Original power frequency supply, secondary voltage about 40kV, monthly average electricity consumption 890,000 kW, the moon electricity charge about 54.7 ten thousand yuan.After applying this high frequency electric source, secondary voltage increases to more than 60kV, substantially without flashover.Monthly average power consumption 510,000 kW, the moon electricity charge about 31.3 ten thousand yuan, power cost saving 23.4 ten thousand yuan.Electric energy about 42.6%.Concentration of emission is by the 48.5mg/Nm before transforming simultaneously3It is reduced to discharge improved 31.5mg/Nm3 。
Embodiment 2:
Yunnan power plant for self-supply of company 3# electric cleaner renovation and improving, 8 high frequency electric sources, with substituted for original power frequency supply.Power consumption after power consumption: 310kW/h transformation before transformation: 143kW/h electric energy: 54%.Concentration of emission is by the 200mg/Nm before transforming simultaneously3It is reduced to discharge improved 45mg/Nm3 。
Claims (1)
1. the implementation method of a high-frequency and high-voltage SIR power supply electric precipitation, it is characterised in that said method comprising the steps of:
Step one, input three-phase 380V/50 ~ 60HZ alternating current power supply, be filtered into about 520V DC voltage through three phase rectifier；
Step 2, DC voltage warp again
IGBT inverter bridge, resonant capacitance Cs, resonant inductance Ls and high frequency transformer composition high-frequency resonant formula inverter circuit, high-frequency inversion, frequency 15 ~ 50kHZ, input to high frequency transformer；
Step 3, inversion waveform boost through high frequency transformer, about 70kv, then after high-frequency rectification bridge rectification,
Obtain voltage waveform on ESP, supply cathode of electric dust collector plate；
Step 4, output electric current, voltage, feed back to dsp controller and change pulsed operation frequency or pulse width and give IGBT full-bridge high-frequency inverter so that output current output voltage to be adjusted through driver for isolating；
The protection of step 5, output open circuit, short-circuit protection, transformer oil and the overtemperature protection of IGBT, output flashover control and process etc. are realized in the lump by digital signal processor DSP controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210866.XA CN106179756A (en) | 2015-04-29 | 2015-04-29 | Method for realizing electric precipitation of high-frequency high-voltage SIR power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210866.XA CN106179756A (en) | 2015-04-29 | 2015-04-29 | Method for realizing electric precipitation of high-frequency high-voltage SIR power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106179756A true CN106179756A (en) | 2016-12-07 |
Family
ID=57458064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510210866.XA Pending CN106179756A (en) | 2015-04-29 | 2015-04-29 | Method for realizing electric precipitation of high-frequency high-voltage SIR power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106179756A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108187914A (en) * | 2018-01-17 | 2018-06-22 | 厦门龙净环保节能科技有限公司 | A kind of dedusting power control method, device and power-supply device |
| CN109604061A (en) * | 2018-10-26 | 2019-04-12 | 福建省青山纸业股份有限公司 | A kind of dust removal method of pulsed high frequency electric source |
| CN109962633A (en) * | 2017-12-25 | 2019-07-02 | 湖北新空电气有限公司 | A kind of high-power dedusting power source of permanent high-frequency and high-voltage of environmental protection |
| CN113399118A (en) * | 2021-05-13 | 2021-09-17 | 浙江天洁环境工程有限公司 | High-frequency power supply control system and electric dust removal device thereof |
| CN113996444A (en) * | 2021-10-29 | 2022-02-01 | 咸宁南玻玻璃有限公司 | Closed-loop control system for high-voltage electrostatic dust removal |
-
2015
- 2015-04-29 CN CN201510210866.XA patent/CN106179756A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962633A (en) * | 2017-12-25 | 2019-07-02 | 湖北新空电气有限公司 | A kind of high-power dedusting power source of permanent high-frequency and high-voltage of environmental protection |
| CN108187914A (en) * | 2018-01-17 | 2018-06-22 | 厦门龙净环保节能科技有限公司 | A kind of dedusting power control method, device and power-supply device |
| CN109604061A (en) * | 2018-10-26 | 2019-04-12 | 福建省青山纸业股份有限公司 | A kind of dust removal method of pulsed high frequency electric source |
| CN113399118A (en) * | 2021-05-13 | 2021-09-17 | 浙江天洁环境工程有限公司 | High-frequency power supply control system and electric dust removal device thereof |
| CN113996444A (en) * | 2021-10-29 | 2022-02-01 | 咸宁南玻玻璃有限公司 | Closed-loop control system for high-voltage electrostatic dust removal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106179756A (en) | Method for realizing electric precipitation of high-frequency high-voltage SIR power supply | |
| CN102107157B (en) | Intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal | |
| CN203840237U (en) | High-frequency pulse power source circuit, high-frequency multiplex high-voltage pulse power source and electric precipitator | |
| CN201404859Y (en) | Electric precipitation high frequency pulse feed high-voltage rectification power supply | |
| CN202475292U (en) | Electrostatic-precipitation high-frequency power supply control system | |
| CN101075783B (en) | Three-phase medium-frequency DC high-voltage power supply for ESP | |
| CN105080722A (en) | Anti-interference direct-current pulse power source for electrostatic dust collection | |
| CN205092785U (en) | Three phase current | |
| CN103986363A (en) | High-frequency multiple high voltage pulse generating method, high-frequency multiple high voltage pulse power supply and electric precipitator | |
| CN202410836U (en) | Frequency-variable intermediate-frequency power supply for electrostatic precipitation | |
| CN101850301A (en) | DC superposed pulse electric precipitation method | |
| CN201613181U (en) | Intelligent medium-frequency high-voltage dual-output direct current power supply for electric dust removal | |
| CN102909444B (en) | Pulsed power supply with parallel high-energy capacitors for electrosparking | |
| CN102755931A (en) | Variable-frequency medium-frequency power supply for electrostatic dust collection | |
| CN203862395U (en) | DC superimposed impulse high-voltage power supply for electric precipitator | |
| CN201048352Y (en) | Three-phase intermediate frequency DC high voltage power supply for ESP | |
| CN102097953A (en) | All-digital control secondary inverter high-voltage variable frequency rectangular wave alternating-current power supply device suitable for crude oil dehydration | |
| CN104253560A (en) | Direct current pulse power supply device for electric dust precipitation | |
| CN105195840B (en) | It is a kind of can automatic boosting electrical discharge machining pulse power control method | |
| CN101582646A (en) | Method and device for stacking power of high-frequency high-voltage direct-current switch power supply for electrostatic precipitator | |
| CN204669243U (en) | The soft voltage-stabilizing power supply of electrostatic precipitator high-frequency and high-voltage | |
| CN104759352A (en) | Electric precipitation pulse high voltage supply controller | |
| CN103997230A (en) | Intermediate frequency furnace based on full-wave chopped mode rectifying circuits | |
| CN102233301A (en) | High-frequency pulse power supply for electrostatic dust collector | |
| EP3612310B1 (en) | High-voltage power supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |
|
| WD01 | Invention patent application deemed withdrawn after publication |