CN102107157B - Intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal - Google Patents
Intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal Download PDFInfo
- Publication number
- CN102107157B CN102107157B CN 200910266743 CN200910266743A CN102107157B CN 102107157 B CN102107157 B CN 102107157B CN 200910266743 CN200910266743 CN 200910266743 CN 200910266743 A CN200910266743 A CN 200910266743A CN 102107157 B CN102107157 B CN 102107157B
- Authority
- CN
- China
- Prior art keywords
- diode
- voltage
- output
- sampling resistor
- frequency
- 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.)
- Active
Links
- 239000000428 dust Substances 0.000 title abstract description 38
- 238000005070 sampling Methods 0.000 claims abstract description 84
- 238000012545 processing Methods 0.000 claims abstract description 19
- 230000009977 dual effect Effects 0.000 claims description 28
- 238000004804 winding Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 23
- 238000001556 precipitation Methods 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 21
- 238000013016 damping Methods 0.000 claims description 18
- 208000035126 Facies Diseases 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 24
- 229910052710 silicon Inorganic materials 0.000 abstract description 24
- 239000010703 silicon Substances 0.000 abstract description 24
- 230000005684 electric field Effects 0.000 abstract description 21
- 238000010276 construction Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000012717 electrostatic precipitator Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Landscapes
- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses an intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal. The direct current power supply comprises a three-phase air switch with a tripper, a three-phase rectifier, a filter, a single-phase medium-frequency inverter, an air switch, a medium-frequency step-up transformer, a medium-frequency double half-wave rectifier, a first high-voltage direct current output sampling circuit, a second high-voltage direct current output sampling circuit, an isolating driver and a digital signal processing (DSP) controller, wherein the medium-frequency double half-wave rectifier of the direct current power supply is used for outputting two paths of direct current high voltage; the two paths of direct current high voltage are fed back to the DSP controller through two paths of sampling circuits; and a control signal is output to the single-phase medium-frequency inverter by the DSP controller to adjust frequency and amplitude. The direct current power supply has the characteristics of high output voltage, balanced power grid input and capability of greatly reducing pollution to a power grid and improving the utilization efficiency of power; and a medium-frequency high-voltage silicon rectifier double-output transformer which is matched with the direct current power supply has the characteristics of small volume, light weight, low manufacturing cost and high efficiency. The direct current power supply has a wide application range and can be applied to construction of a new dust removal electric field, synergetic reconstruction of an old electric field and the like.
Description
Technical field
The invention belongs to the high pressure electrostatic precipitation technology field, particularly relate to a kind of electric precipitation that relates to intermediate frequency technology, dual output transformer technology and automated control technology Intelligent medium-frequency high-voltage dual output dc source.
Background technology
Owing in industrial production, can produce a large amount of flue gases and flying dust inevitably, and also contain a large amount of fine particles dust in the flue gas, to cause serious environmental pollution if these flying dusts and dust directly be discharged in the environment, thereby not only ecological environment is caused in various degree destruction, and bring harm for people's health.In quite a while in the past, electric cleaner has been played the part of very important role in the process of control atmosphere pollution, perform meritorious deeds never to be obliterated; Yet, along with people to improving constantly that living environment requires, environmental protection organization is also corresponding has both at home and abroad put into effect new discharge standard, and control and the electric dust-removing equipment of pollution sources had higher requirement.Under the pressing hard of new situations, although the efficiency of dust collection of the electric cleaner of prior art can reach more than 99%, but because present conventional electric cleaner all is supporting single phase industrial frequence power supply, cause the input of power supply three-phase uneven, the quadratic average low voltage, the current density of electric field is little, and back corona phenomenon easily occurs, and fails the discharging of the following particle of PM2.5um is realized effectively control.People have also done many improvement to this therebetween, such as having developed controlled silicon industrial frequency phase-controlled power, amplitude modulation LC constant-current source of input being changed into three-phase etc., also doing many work aspect system's control, such as the FEEDBACK CONTROL amount is made into electric current by voltage, power adjustment has adopted single-chip microcomputer etc.Make a general survey of on it, it all is the objective requirement that does not catch up with environmental protection standard " energy-saving and cost-reducing, sustainable development ", its key problem is that the operating frequency of power supply is power frequency 50HZ, cause power transformer and the filter inductor capacitor volume of power supply huge, energy-consuming consumptive material, expend the space, and affect the raising of efficiency of dust collection.This traditional low frequency rectifier power source T/R of electric cleaner mainly contains five large shortcomings: the one, and operating frequency is low, and conversion efficiency is low to moderate below 75%, consume electric power; The 2nd, operating frequency is low, so that transformer and wave filter volume are large, Heavy Weight has expended a large amount of copper and iron, does not meet sustainable development, and price is high again simultaneously, and cost performance is low; The 3rd, power supply is input as two-phase 380v AC power frequency supply, is again that operating frequency phase is regulated, and causes input power factor to be low to moderate below 0.7, and electrical network is caused very large electromagnetic interference, and Electro Magnetic Compatibility is poor, does not meet the natural harmony development; The 4th, the Industrial Frequency Transformer that bulky power supply control and regulation cabinet and isolation boosting are used lives in two separate places, and expends the space, increases capital cost; The 5th, output ripple is large, cause corona voltage low, waveform is again single power frequency ripple, so that can't adapt to the operating mode of high specific resistance, do not reach the new demand (China's firepower electrical plant dust emission standard in 2004 is reduced to 50 milligrams/cubic metre by 200 milligrams/cubic metre of the original nineties) of field of Environment Protection dust emission standard.Although have a kind of electric cleaner to change five electric fields into from three electric fields, still do not reach the requirement of 50mg/m3 concentration of emission.Effectively Retrofit on electrostatic precipitator is especially transformed the old deduster that body has been finalized the design, is equipped with state-of-the-art power technology, intelligent control and improves the key that the efficient that fine particle is collected is only transformation.Therefore, in order to adapt to the development need of society, it is imperative to use the new electric cleaner of new principle or new mechanism research and development.
Along with the continuous progress of technology, particularly power electronic device of new generation such as IGBT, the high frequency electric source that the application of IPM etc., three-phase equilibrium input again can the Effective Raise efficiency of dust collections is coming into the market abroad.Corresponding high pressure silicon rectifying transformer just becomes that volume is little, lightweight, loss is few, low cost and technological performance.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art, a kind of electric precipitation Intelligent medium-frequency high-voltage dual output dc source is provided, it not only can be exported stably voltage, provide higher DC voltage to electric cleaner, and have can energy savings, automaticity height, good stability, non-failure operation time is long, efficiency of dust collection is high characteristics, its medium-frequency high-voltage silicon rectifying transformer of joining has that volume is little, lightweight, low cost, characteristics that efficient is high.
The technical solution adopted for the present invention to solve the technical problems is: a kind of electric precipitation Intelligent medium-frequency high-voltage dual output dc source comprises:
One or three facies tract electrical apparatus release air switches are used for connecting the alternating current input of three-phase 380V50Hz;
One three-phase rectifier, the rectification processing is carried out in input to three-phase 380V50Hz alternating current;
One wave filter carries out filtering to input signal and processes;
One single-phase mid-frequency inverter is processed into the output of single-phase mid-frequency AC signal with the direct current signal inversion of inputting;
One air switch;
One intermediate frequency step-up transformer is compressed into the capable processing of boosting to the medium frequency alternating current of input, changes the output of medium-frequency high-voltage alternating current into;
One intermediate frequency double half-wave rectification device carries out double half-wave rectification to the intermediate frequency High Level AC Voltage and processes, and is provided with the output of two road high voltage direct currents;
The first HVDC output sample circuit gathers electric current, voltage signal that first via HVDC is exported;
The second HVDC output sample circuit gathers electric current, voltage signal that the second road HVDC is exported;
One driver for isolating; And
One dsp controller is analyzed, is calculated and process input signal, and control signal corresponding to output;
The input of three facies tract electrical apparatus release air switches connects respectively the alternating current input of three-phase 380V50Hz, the output of three facies tract electrical apparatus release air switches is connected to the three-phase rectifier input, the alternating current of three-phase 380V50Hz is defeated by three-phase rectifier by three facies tract electrical apparatus release air switches, by three-phase rectifier the alternating current of three-phase 380V50Hz is carried out rectification and processes; The first input current signal, first input voltage signal of three facies tract electrical apparatus release air switch collection processes, and this signal exported to respectively dsp controller; The output of three-phase rectifier is connected to the input of wave filter, and the signal after three-phase rectifier is processed rectification is exported to wave filter and carried out the filtering processing; The output of wave filter is connected to the input of single-phase mid-frequency inverter, and wave filter carries out frequency conversion and inversion processing with rectification, filtered DC signal output to the single-phase mid-frequency inverter; The output of single-phase mid-frequency inverter is connected to the input of intermediate frequency step-up transformer by air switch, and the single-phase mid-frequency inverter is to intermediate frequency step-up transformer output midfrequent AC signal, and the intermediate frequency step-up transformer is to the processing of boosting of this midfrequent AC signal; The temperature signal of the electric current of single-phase mid-frequency inverter collection process, and export to dsp controller; The output of intermediate frequency step-up transformer is connected to the input of intermediate frequency double half-wave rectification device, midfrequent AC signal after the intermediate frequency step-up transformer will boost is exported to intermediate frequency double half-wave rectification device, intermediate frequency double half-wave rectification device carries out double half-wave rectification to the midfrequent AC signal after boosting to be processed, and exports two tunnel high direct voltage signals; The input of the first HVDC output sample circuit and the second HVDC output sample circuit is connected to respectively the output of intermediate frequency double half-wave rectification device, and the first HVDC output sample circuit, the second HVDC output sample circuit are exported the processing of taking a sample to two road HVDCs of intermediate frequency double half-wave rectification device respectively; The output of the first HVDC output sample circuit and the second HVDC output sample circuit is connected to respectively dsp controller; The output of dsp controller is connected to the control input end of single-phase mid-frequency inverter by driver for isolating, and dsp controller can be regulated the control signal of single-phase mid-frequency inverter output amplitude and frequency to the output of single-phase mid-frequency inverter.
Described intermediate frequency step-up transformer comprises secondary windings T1; Described intermediate frequency double half-wave rectification device is made of diode D1, diode D2, diode D3 and diode D4; Described the first HVDC output sample circuit is made of the first current sampling resistor R11 and the first voltage sampling resistor R12; Described the second HVDC output sample circuit is made of the second current sampling resistor R21 and second voltage sample resistance R22; The end of secondary windings T1 is connected with the negative pole of diode D1 and the positive pole of diode D2 respectively, and the other end of secondary windings T1 is connected with the negative pole of diode D3 and the positive pole of diode D4 respectively; The positive pole of diode D1 is connected to the end of the first voltage sampling resistor R12, and the other end of the first voltage sampling resistor R12 is connected to the end of the first current sampling resistor R11, and the other end of the first current sampling resistor R11 is connected to the negative pole of diode D4; The positive pole of diode D3 is connected to the end of second voltage sample resistance R22, and the other end of second voltage sample resistance R22 is connected to the end of the second current sampling resistor R21, and the other end of the second current sampling resistor R21 is connected to the negative pole of diode D2; The positive pole of diode D1 is connected to the first load by a damping resistance R10; The positive pole of diode D3 is connected to the second load by a damping resistance R20.
Described intermediate frequency step-up transformer comprises secondary windings T1; Described intermediate frequency double half-wave rectification device is made of diode D1, diode D2, diode D3 and diode D4; Described the first HVDC output sample circuit is made of the first current sampling resistor R11 and the first voltage sampling resistor R12; Described the second HVDC output sample circuit is made of the second current sampling resistor R21 and second voltage sample resistance R22; The end of secondary windings T1 is connected with the negative pole of diode D1 and the positive pole of diode D2 respectively, and the other end of secondary windings T1 is connected with the negative pole of diode D3 and the positive pole of diode D4 respectively; The positive pole of diode D1 is connected to the end of the first voltage sampling resistor R12, and the other end of the first voltage sampling resistor R12 is connected to the end of the first current sampling resistor R11, and the other end of the first current sampling resistor R11 is connected to the negative pole of diode D4; The positive pole of diode D3 is connected to the end of second voltage sample resistance R22, and the other end of second voltage sample resistance R22 is connected to the end of the second current sampling resistor R21, and the other end of the second current sampling resistor R21 is connected to the negative pole of diode D2; The positive pole of diode D1 is connected with an end of a capacitor C 1 by a damping resistance R10, and the other end of capacitor C 1 is connected to load; The positive pole of diode D3 is connected with the negative pole of a diode D5 by a damping resistance R20, and the positive pole of diode D5 is connected to load.
Described intermediate frequency step-up transformer comprises secondary windings T1; Described intermediate frequency double half-wave rectification device is made of diode D1, diode D2, diode D3 and diode D4; Described the first HVDC output sample circuit is made of the first current sampling resistor R11 and the first voltage sampling resistor R12; Described the second HVDC output sample circuit is made of the second current sampling resistor R21 and second voltage sample resistance R22; The end of secondary windings T1 is connected with the negative pole of diode D1 and the positive pole of diode D2 respectively, and the other end of secondary windings T1 is connected with the negative pole of diode D3 and the positive pole of diode D4 respectively; The positive pole of diode D1 is connected to the end of the first voltage sampling resistor R12, and the other end of the first voltage sampling resistor R12 is connected to the end of the first current sampling resistor R11, and the other end of the first current sampling resistor R11 is connected to the negative pole of diode D4; The positive pole of diode D3 is connected to the end of the second current sampling resistor R21, and the other end of the second current sampling resistor R21 is connected to the end of second voltage sample resistance R22, and the other end of second voltage sample resistance R22 is connected to the negative pole of diode D2; The positive pole of diode D1 is connected to the first load by a damping resistance R10; The negative pole of diode D2 is connected to the second load by a damping resistance R20.
The invention has the beneficial effects as follows, compare with the power frequency high voltage silicon commutating power supply of routine, the present invention adopts three facies tract electrical apparatus release air switches, three-dimensional rectifier, single-phase mid-frequency inverter, intermediate frequency step-up transformer, intermediate frequency double half-wave rectification device, dsp controller to consist of the dual output dc source, the intermediate frequency double half-wave rectification device of this dc source is exported two tunnel high direct voltages, and feed back to dsp controller by two road sample circuits, by dsp controller to single-phase mid-frequency inverter output control signal with regulating frequency and amplitude.After adopting this structure, so that the present invention not only output voltage is high, electrical network input balance, can significantly reduce the pollution of electrical network and improve power utilization efficient, and its medium-frequency high-voltage silicon rectifier dual output transformer of joining has that volume is little, lightweight, low cost, characteristics that efficient is high.In addition, the present invention is widely used, and it both can be applied to the construction of new dedusting electric field, also can be applied to the transformation for increasing productiion capacity of old electric field; The present invention adopts Computer Control Technology, can realize Digital Control, with organic the coupling together of work with each equipment of electric dust removing system, thereby makes its co-ordination, reaches optimum Working.
Below in conjunction with drawings and Examples the present invention is described in further detail; But a kind of electric precipitation of the present invention is not limited to embodiment with Intelligent medium-frequency high-voltage dual output dc source.
Description of drawings
Fig. 1 is theory diagram of the present invention;
Fig. 2 is embodiment one partial circuit syndeton schematic diagram of the present invention;
Fig. 3 is embodiment two partial circuit syndeton schematic diagrames of the present invention;
Fig. 4 is embodiment three partial circuit syndeton schematic diagrames of the present invention.
The specific embodiment
See also shown in Figure 1ly, a kind of electric precipitation of the present invention is with Intelligent medium-frequency high-voltage dual output dc source, and it comprises:
One or three facies tract electrical apparatus release air switches 11 are used for connecting the alternating current input of three-phase 380V50Hz;
One three-phase rectifier 2, the rectification processing is carried out in input to three-phase 380V50Hz alternating current;
One wave filter 3 carries out filtering to input signal and processes;
One single-phase mid-frequency inverter 4 is processed into the output of single-phase mid-frequency AC signal with the direct current signal inversion of inputting;
One air switch 12;
One intermediate frequency step-up transformer 5 is compressed into the capable processing of boosting to the medium frequency alternating current of input, changes the output of medium-frequency high-voltage alternating current into;
One intermediate frequency double half-wave rectification device 6 carries out double half-wave rectification to the intermediate frequency High Level AC Voltage and processes, and is provided with the output of two road high voltage direct currents;
The first HVDC output sample circuit 71 gathers current signal I21, voltage signal U21 that first via HVDC is exported;
The second HVDC output sample circuit 72 gathers current signal I22, voltage signal U22 that the second road HVDC is exported;
One driver for isolating 8;
One dsp controller 9 is analyzed, is calculated and process input signal, and control signal corresponding to output;
The input of three facies tract electrical apparatus release air switches 11 connects respectively the alternating current input of three-phase 380V50Hz, the output of three facies tract electrical apparatus release air switches 11 is connected to three-phase rectifier 2 inputs, the alternating current of three-phase 380V50Hz is defeated by three-phase rectifier 2 by three facies tract electrical apparatus release air switches 11, carries out rectification by the alternating current of 2 couples of three-phase 380V50Hz of three-phase rectifier and processes; Three facies tract electrical apparatus release air switches 11 gather the first input current signal I11, the first input voltage signal U11 of process, and this signal (being electric current I 11, voltage U 11) is exported to respectively dsp controller 9; The output of three-phase rectifier 2 is connected to the input of wave filter 3, and the signal after three-phase rectifier 2 is processed rectification is exported to wave filter 3 and carried out the filtering processing; The output of wave filter 3 is connected to the input of single-phase mid-frequency inverter 4, and wave filter 3 carries out frequency conversion and inversion processing with rectification, filtered DC signal output to single-phase mid-frequency inverter 4; The output of single-phase mid-frequency inverter 4 is connected to the input of intermediate frequency step-up transformer 5 by air switch 12, and single-phase mid-frequency inverter 4 is to intermediate frequency step-up transformer 5 output midfrequent AC signals, the processing of boosting of 5 pairs of these midfrequent AC signals of intermediate frequency step-up transformer; Single-phase mid-frequency inverter 4 gathers the temperature signal of the electric current of process, and exports to dsp controller 9; The output of intermediate frequency step-up transformer 5 is connected to the input of intermediate frequency double half-wave rectification device 6, midfrequent AC signal after intermediate frequency step-up transformer 5 will boost is exported to intermediate frequency double half-wave rectification device 6, midfrequent AC signal after 6 pairs of intermediate frequency double half-wave rectification devices boost carries out double half-wave rectification to be processed, and exports two tunnel high direct voltage signals; The input of the first HVDC output sample circuit 71 and the second HVDC output sample circuit 72 is connected to respectively the output of intermediate frequency double half-wave rectification device 6, and the first HVDC output sample circuit 71, the second HVDC output sample circuit 72 are exported the processing of taking a sample to two road HVDCs of intermediate frequency double half-wave rectification device respectively; The output of the first HVDC output sample circuit 71 and the second HVDC output sample circuit 72 is connected to respectively dsp controller 9, i.e. the first HVDC output sample circuit 71 is exported to dsp controller 9, the second HVDCs output sample circuit 72 with electric current I 21, voltage U 21 electric current I 22, voltage U 22 is exported to dsp controller 9; Comparison is analyzed in 9 pairs of each road inputs of dsp controller (temperature signal, electric current I 21, voltage U 21, electric current I 22, the voltage U 22 of the electric current of electric current I 11, voltage U 11,4 outputs of single-phase mid-frequency inverter), the output of generation control signal, the output of dsp controller 9 is connected to the control input end of single-phase mid-frequency inverter 4 by driver for isolating 8, and dsp controller 9 can be regulated the control signal of single-phase mid-frequency inverter output amplitude and frequency to 4 outputs of single-phase mid-frequency inverter.
Because the formula of transformer voltage turns ratio is: N=10
8/ (4.44fBA), wherein N is voltage turns ratio, and f is the operating frequency of transformer, and B is iron-core magnetic induction intensity, and A is that core section is long-pending, and therefore when the operating frequency f of transformer was higher, voltage turns ratio N was less, and then the weight of transformer, volume are less.As seen, a kind of electric precipitation of the present invention Intelligent medium-frequency high-voltage dual output dc source, its transformer is compared with the power frequency high voltage silicon rectifying transformer of routine, amass in the identical situation at iron-core magnetic induction intensity and core section, because the operating frequency of its transformer is higher, so the weight and volume of its transformer is less.
A kind of electric precipitation of the present invention has following three kinds of typical application with Intelligent medium-frequency high-voltage dual output dc source in electric precipitation.
Embodiment one, and a kind of electric precipitation of the present invention Intelligent medium-frequency high-voltage dual output dc source can be simultaneously for two electric fields provide power supply, and its partial circuit connection diagram sees also shown in Figure 2, and it can provide power supply for simultaneously electric field 1 and electric field 2.Intermediate frequency step-up transformer 5 of the present invention comprises secondary windings T1; Intermediate frequency double half-wave rectification device 6 is made of diode D1, diode D2, diode D3 and diode D4; The first HVDC output sample circuit 71 is made of the first current sampling resistor R11 and the first voltage sampling resistor R12; The second HVDC output sample circuit 72 is made of the second current sampling resistor R21 and second voltage sample resistance R22; The end of secondary windings T1 is connected with the negative pole of diode D1 and the positive pole of diode D2 respectively, and the other end of secondary windings T1 is connected with the negative pole of diode D3 and the positive pole of diode D4 respectively; The positive pole of diode D1 is connected to the end of the first voltage sampling resistor R12, and the other end of the first voltage sampling resistor R12 is connected to the end of the first current sampling resistor R11, and the other end of the first current sampling resistor R11 is connected to the negative pole of diode D4; The positive pole of diode D3 is connected to the end of second voltage sample resistance R22, and the other end of second voltage sample resistance R22 is connected to the end of the second current sampling resistor R21, and the other end of the second current sampling resistor R21 is connected to the negative pole of diode D2; The positive pole of diode D1 is connected to the first load by a damping resistance R10, namely is connected to the corona wire of electric field 1 by a high voltage isolator; The positive pole of diode D3 is connected to the second load by a damping resistance R20, namely is connected to the corona wire of electric field 2 by a high voltage isolator.
A kind of electric precipitation of the present invention Intelligent medium-frequency high-voltage dual output dc source, because its intermediate frequency double half-wave rectification device 6 adopts two half-wave power supplies, two high-voltage output ends are arranged, and the polarity of these two high-voltage output ends can just can be born, amplitude is changeable, adjustable continuously, not only can power continuously but also can adopt intermittent power supply, so that the present invention can give two electric field power supplies, and feeding back to control system owing to its each high-voltage output end (is electric current I 21, voltage U 21, electric current I 22, voltage U 22), so that it can be controlled flexibly to each high-voltage output end, this is equivalent to the power frequency high voltage silicon rectifying transformer of two routines, but in control, be better than again the power frequency silicon rectifying transformer, it can implement control and centralized Control to each high-voltage output end according to on-the-spot needs, and do not need to realize by communication, so its reliability and real-time all are higher than conventional power frequency high voltage silicon rectifying transformer.For power frequency supply, if change its full-wave rectification into double half-wave rectification, then the circuit of its each output will only have original half, and for intermediate frequency power supply, then the electric current of each halfwave rectifier output can reach the electric current of exporting when power frequency supply is full-wave rectification.
Embodiment two, a kind of electric precipitation of the present invention Intelligent medium-frequency high-voltage dual output dc source, and it can supply with an electric field pulse and direct current double loop power supply, and its partial circuit connection diagram sees also shown in Figure 3.Intermediate frequency step-up transformer 5 of the present invention comprises secondary windings T1; Intermediate frequency double half-wave rectification device 6 is made of diode D1, diode D2, diode D3 and diode D4; The first HVDC output sample circuit 71 is made of the first current sampling resistor R11 and the first voltage sampling resistor R12; The second HVDC output sample circuit 72 is made of the second current sampling resistor R21 and second voltage sample resistance R22; The end of secondary windings T1 is connected with the negative pole of diode D1 and the positive pole of diode D2 respectively, and the other end of secondary windings T1 is connected with the negative pole of diode D3 and the positive pole of diode D4 respectively; The positive pole of diode D1 is connected to the end of the first voltage sampling resistor R12, and the other end of the first voltage sampling resistor R12 is connected to the end of the first current sampling resistor R11, and the other end of the first current sampling resistor R11 is connected to the negative pole of diode D4; The positive pole of diode D3 is connected to the end of second voltage sample resistance R22, and the other end of second voltage sample resistance R22 is connected to the end of the second current sampling resistor R21, and the other end of the second current sampling resistor R21 is connected to the negative pole of diode D2; The positive pole of diode D1 is connected with an end of a capacitor C 1 by a damping resistance R10, and the other end of capacitor C 1 is connected to load, namely is connected to the corona wire of electric field by a high voltage isolator; The positive pole of diode D3 is connected with the negative pole of a diode D5 by a damping resistance R20, and the positive pole of diode D5 is connected to load.
The superiority of pulse power supply has obtained people's attention in electric precipitation.The high performance pulse power of development and application also becomes current raising efficiency of dust collection, lowers an important process of electric precipitation cost.In same electric cleaner, use pulse power supply can obtain to have improved the particle migration velocity, thereby improved electric dust-collecting efficiency than the higher corona discharge power of conventional industrial frequency rectifying power supply.Being applied in the pulse power of industrial electro dedusting most typical is exactly to adopt the high-voltage DC power supply of a high-voltage pulse power source and a conventional industrial frequency rectifying to connect to form.At present domestic and international electric precipitation pulse power supply power supply adopts the design of superposition pulse voltage on the direct current basic voltage mostly, need to consist of two cover power supplys with two transformers, be respectively applied to produce dc base voltage and pulse voltage, therefore the structure of power supply and control system more complicated all is expensive.The present invention can adopt the power model modulation to form pulse signal and 400Hz half-wave inverter signal, then by transformer boost, rectification obtains pulse and DC voltage, the waveform of its output approaches or is equivalent to the pulse power waveform that is comprised of dc source and pulse power stack, and its high-voltage pulse width is 30～200 μ S.Therefore, the present invention has simple in structure, the reliability high.In addition, the present invention is directed to not the on year-on-year basis dust of resistance, also can by adjusting respectively dc base voltage, pulse frequency and dutycycle, make it the dust removing effects that reaches best.
Embodiment three, and a kind of electric precipitation of the present invention also can be the lens type dust pelletizing system power supply is provided with Intelligent medium-frequency high-voltage dual output dc source, and its partial circuit connection diagram sees also shown in Figure 4.Intermediate frequency step-up transformer 5 of the present invention comprises secondary windings T1; Intermediate frequency double half-wave rectification device 6 is made of diode D1, diode D2, diode D3 and diode D4; The first HVDC output sample circuit 71 is made of the first current sampling resistor R11 and the first voltage sampling resistor R12; The second HVDC output sample circuit 72 is made of the second current sampling resistor R21 and second voltage sample resistance R22; The end of secondary windings T1 is connected with the negative pole of diode D1 and the positive pole of diode D2 respectively, and the other end of secondary windings T1 is connected with the negative pole of diode D3 and the positive pole of diode D4 respectively; The positive pole of diode D1 is connected to the end of the first voltage sampling resistor R12, and the other end of the first voltage sampling resistor R12 is connected to the end of the first current sampling resistor R11, and the other end of the first current sampling resistor R11 is connected to the negative pole of diode D4; The positive pole of diode D3 is connected to the end of the second current sampling resistor R21, and the other end of the second current sampling resistor R21 is connected to the end of second voltage sample resistance R22, and the other end of second voltage sample resistance R22 is connected to the negative pole of diode D2; The positive pole of diode D1 is connected to the first load by a damping resistance R10, and high direct voltage U1 namely is provided; The negative pole of diode D2 is connected to the second load by a damping resistance R20, and high direct voltage U2 namely is provided.
In lens type high voltage electrostatic dust collection system, not only need the negative corona utmost point but also need the positive corona utmost point, if just need to consist of two cover power supplys with two transformers with conventional power frequency high voltage silicon rectifying transformer, be respectively applied to produce the negative corona utmost point and the positive corona utmost point, therefore the structure of power supply and control system more complicated all, price is also expensive.The present invention can produce respectively the negative corona utmost point and the positive corona utmost point, and the amplitude of the negative corona utmost point and the positive corona utmost point is changeable, adjustable continuously, both can power continuously and also can adopt intermittent power supply, is highly suitable for the adjusting of lens type high voltage electrostatic dust collection system.Like this, a medium-frequency high-voltage silicon rectifier dual output transformer just is equivalent to two high pressure silicon rectifying transformers, and only needs a control system, and this had both reduced cost, had improved again the reliability and stability of whole system.
A kind of electric precipitation of the present invention Intelligent medium-frequency high-voltage dual output dc source, its medium-frequency high-voltage silicon rectifier dual output transformer is compared with conventional power frequency high voltage silicon rectifying transformer, long-pending lower at identical core section, the former is about the latter's 1/8 by used copper material, the former is about the latter's 1/6 by used cold-rolled orientation silicon steel sheet consumption, the former volume is about the latter's 1/4, and the former cost is about the latter's 1/6.The present invention can also reduce the loss of silicon rectifying transformer, improve efficiency of dust collection: compare with conventional power frequency high voltage silicon commutating power supply and can save energy more than 30%, if and the electric current phase shortage is empty when counting single-phase work in decreases, medium-frequency high-voltage silicon rectifier dual output power supply actual energy-conservation near 40%.Medium-frequency high-voltage silicon rectifier dual output power acquisition is exported with three-phase, and its efficiency of dust collection is greater than 0.95.The secondary voltage of medium-frequency high-voltage silicon rectifier dual output power supply output is steady, crest voltage and virtual value, mean voltage are basically identical, under identical breakdown voltage, its secondary output average voltage can improve more than 20%, the current density of electric field can be enhanced about more than once, and namely exports the secondary output current and doubles; For identical load, the effective output that adopts the comparable conventional power frequency high voltage silicon rectifying transformer of medium-frequency high-voltage silicon rectifier dual output transformer to be enhanced about more than once; Be conducive to improve the corona discharge power of some electric current and voltages application scenario on the low side, be conducive to overcome the operational effect of high concentrate dust, thereby improve efficiency of dust collection; Can reduce the specific area that gathers dust for newly-designed body, reduce the deduster gross weight, reduce cost.
The different of electric dust-removing power supply and normal power supplies maximum are exactly: when dust runs up to a certain degree or voltage peak when being higher than between anode and cathode gas breakdown voltage electric field flashover can occur, concerning power-supply system, be equivalent to surge, and this phenomenon can reach 150 beats/mins when serious.This system can adopt dsPIC33F chip and up-to-date intelligent power module to form the Intelligent medium-frequency power control system, supply frequency is adjustable from 0Hz to 1000Hz, and 1000Hz medium-frequency high-voltage silicon rectifier dual output transformer forms electric precipitation Intelligent medium-frequency high-voltage power supply jointly.What control section adopted is advanced at present singlechip chip, and adapted high reliability peripheral chip forms, and can detect and control in full-time territory.Be connected with electrical network, be furnished with thermal trip, current transformer, can to faults such as apparatus overload, short circuit and power model punctures, realize immediately protection in conjunction with " overvoltage, over-current detection unit ".Detect through technical supervision department, fully can 150 flashovers/minute environment under stable operation.Adopt the transmission of Low ESR signal and waveform shaping circuit design, improved the antijamming capability under the condition that equipment is abominable in the electric field operating mode, flue gas changes complexity and the mains by harmonics component is many.Adopt the configuration of high impedance (impedance voltage 35～42%) intermediate-frequency transformer, improved the C-V characteristic to the electric field power supply.Be furnished with anti-corona rapping interlock interface, during to the high resistivity dust deashing, automatically convert intermittent power supply to, namely improved the vibration dust-cleaning effect and suppressed again reentrainment of dust.Can connect transmissometer, by the closed-loop control of transmissometer feedback signal formation electric cleaner, the flue gas operating mode of root a tree name transmissometer monitoring is adjusted electric current, the voltage of output in real time; Can guarantee that dust removal efficiency can save mass energy consumption again.Adopt the CAN bus structures to realize easily and the host computer networking, friendly man-machine interface is arranged, make operation control become simple, flexibly.
Improve the efficiency of dust collection of electric cleaner, reduce dust emission, to reach new environmental protection standard, except enlarging and improving the electric cleaner body, the way of more economical practicality is paid attention to system exactly, finds out weak link, realizes Optimal Control.The output crest voltage that conventional power frequency high voltage silicon commutating power supply produces is higher by about 20% than output dc voltage of the present invention.The crest voltage height is easy flashover in electrostatic dust remover electric field.In case the flashover phenomenon is arranged, control system will be controlled, and reduce voltage, limit significantly the average voltage that is added on the electrode, have a strong impact on the efficiency of dust collection of electric cleaner.The invention provides almost pulsation-free direct current output, this is so that electrostatic precipitator can with the operation of flashover point voltage, improve the average voltage that is added on the electrode greatly.Compare with conventional power frequency high voltage cabinet rectifier power source, the present invention has excellent flashover control performance, and its analysis by voltage current waveform in the electric field is changed can be judged very exactly flashover, and make optimization process; The present invention has improved supply voltage and the electric current of electrostatic precipitator, and for thin and dust low resistivity, the electric cleaner dust emission concentration significantly reduces, and has improved efficiency of dust collection; The present invention adopts electronic computer, realizes that numeral 5 changes controls, thereby the work of each equipment of electric dust removing system organically can be coupled together, and makes its co-ordination, to reach Optimal Control.
The present invention adopts Digital Control, has following advantage: at first, Digital Control can adopt advanced control method (such as self adaptation control) and Intelligent Control Strategy, so that the automaticity of electric cleaner ESP is higher; Secondly, control is flexible, and system upgrade is convenient, can arrange online, revise operational factor, remote opening and powered-down; The 3rd, can in same hardware system, realize the control of two kinds of different principle, such as the wide control of accent that can in take frequency modulation as the master, realize under some particular case; The 4th, Digital Transmission is higher than analog quantity transmission reliability, has further improved the reliability of power supply, is easy to standardization; The 5th, system maintenance easy; The 6th, system conformance is good, and cost is low, and many hardware circuits have been saved in the use of interrupt routine and branched program, and it is convenient to manufacture; The 7th, be easy to form the parallel running system, enlarge power supply capacity, satisfy the demand of large power, electrically deduster; The system control function that can have both at last, the electric cleaner device systems.
The present invention can also adopt fuzzy concept aspect Computer Control Technology, used the fuzzy mathematics operation method, and is provided with the expert teacher experience database, so that equipment has very high artificial intelligence control level.This artificial intelligent control system can be according to the different working conditions of different user, different time, automatic discrimination also automatically is chosen in the various control characteristic the sort of control characteristic of dust removing effects the best and controls, and can Always Online" from the motion tracking working condition, constantly from the various control characteristic, automatically select the control characteristic of dust removing effects the best.This has just guaranteed that electric cleaner can long-term stability move expeditiously.The present invention is adopting full isolation coupling mode aspect the high pressure feedback signal, thereby can avoid the impact of surge voltage, guarantees the safe and reliable of components and parts; The present invention is aspect spark rate control, and its spark rate can be brought up to more than 1000 beats/mins even can be higher.
Above-described embodiment only is used for further specifying a kind of electric precipitation of the present invention Intelligent medium-frequency high-voltage dual output dc source; but the present invention is not limited to embodiment; every foundation technical spirit of the present invention all falls in the protection domain of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (4)
1. an electric precipitation is characterized in that: comprising with Intelligent medium-frequency high-voltage dual output dc source:
One or three facies tract electrical apparatus release air switches are used for connecting the alternating current input of three-phase 380V50Hz;
One three-phase rectifier, the rectification processing is carried out in input to three-phase 380V50Hz alternating current;
One wave filter carries out filtering to input signal and processes;
One single-phase mid-frequency inverter is processed into the output of single-phase mid-frequency AC signal with the direct current signal inversion of inputting;
One air switch;
One intermediate frequency step-up transformer is compressed into the capable processing of boosting to the medium frequency alternating current of input, changes the output of medium-frequency high-voltage alternating current into;
One intermediate frequency double half-wave rectification device carries out double half-wave rectification to the intermediate frequency High Level AC Voltage and processes, and is provided with the output of two road high voltage direct currents;
The first HVDC output sample circuit gathers electric current, voltage signal that first via HVDC is exported;
The second HVDC output sample circuit gathers electric current, voltage signal that the second road HVDC is exported;
One driver for isolating; And
One dsp controller is analyzed, is calculated and process input signal, and control signal corresponding to output;
The input of three facies tract electrical apparatus release air switches connects respectively the alternating current input of three-phase 380V50Hz, the output of three facies tract electrical apparatus release air switches is connected to the three-phase rectifier input, the alternating current of three-phase 380V50Hz is defeated by three-phase rectifier by three facies tract electrical apparatus release air switches, by three-phase rectifier the alternating current of three-phase 380V50Hz is carried out rectification and processes; The first input current signal, first input voltage signal of three facies tract electrical apparatus release air switch collection processes, and this signal exported to respectively dsp controller; The output of three-phase rectifier is connected to the input of wave filter, and the signal after three-phase rectifier is processed rectification is exported to wave filter and carried out the filtering processing; The output of wave filter is connected to the input of single-phase mid-frequency inverter, and wave filter carries out frequency conversion and inversion processing with rectification, filtered DC signal output to the single-phase mid-frequency inverter; The output of single-phase mid-frequency inverter is connected to the input of intermediate frequency step-up transformer by air switch, and the single-phase mid-frequency inverter is to intermediate frequency step-up transformer output midfrequent AC signal, and the intermediate frequency step-up transformer is to the processing of boosting of this midfrequent AC signal; The temperature signal of the electric current of single-phase mid-frequency inverter collection process, and export to dsp controller; The output of intermediate frequency step-up transformer is connected to the input of intermediate frequency double half-wave rectification device, midfrequent AC signal after the intermediate frequency step-up transformer will boost is exported to intermediate frequency double half-wave rectification device, intermediate frequency double half-wave rectification device carries out double half-wave rectification to the midfrequent AC signal after boosting to be processed, and exports two tunnel high direct voltage signals; The input of the first HVDC output sample circuit and the second HVDC output sample circuit is connected to respectively the output of intermediate frequency double half-wave rectification device, and the first HVDC output sample circuit, the second HVDC output sample circuit are exported the processing of taking a sample to two road HVDCs of intermediate frequency double half-wave rectification device respectively; The output of the first HVDC output sample circuit and the second HVDC output sample circuit is connected to respectively dsp controller; The output of dsp controller is connected to the control input end of single-phase mid-frequency inverter by driver for isolating, and dsp controller can be regulated the control signal of single-phase mid-frequency inverter output amplitude and frequency to the output of single-phase mid-frequency inverter.
2. electric precipitation according to claim 1 is with Intelligent medium-frequency high-voltage dual output dc source, and it is characterized in that: described intermediate frequency step-up transformer comprises secondary windings T1; Described intermediate frequency double half-wave rectification device is made of diode D1, diode D2, diode D3 and diode D4; Described the first HVDC output sample circuit is made of the first current sampling resistor R11 and the first voltage sampling resistor R12; Described the second HVDC output sample circuit is made of the second current sampling resistor R21 and second voltage sample resistance R22; The end of secondary windings T1 is connected with the negative pole of diode D1 and the positive pole of diode D2 respectively, and the other end of secondary windings T1 is connected with the negative pole of diode D3 and the positive pole of diode D4 respectively; The positive pole of diode D1 is connected to the end of the first voltage sampling resistor R12, and the other end of the first voltage sampling resistor R12 is connected to the end of the first current sampling resistor R11, and the other end of the first current sampling resistor R11 is connected to the negative pole of diode D4; The positive pole of diode D3 is connected to the end of second voltage sample resistance R22, and the other end of second voltage sample resistance R22 is connected to the end of the second current sampling resistor R21, and the other end of the second current sampling resistor R21 is connected to the negative pole of diode D2; The positive pole of diode D1 is connected to the first load by a damping resistance R10; The positive pole of diode D3 is connected to the second load by a damping resistance R20.
3. electric precipitation according to claim 1 is with Intelligent medium-frequency high-voltage dual output dc source, and it is characterized in that: described intermediate frequency step-up transformer comprises secondary windings T1; Described intermediate frequency double half-wave rectification device is made of diode D1, diode D2, diode D3 and diode D4; Described the first HVDC output sample circuit is made of the first current sampling resistor R11 and the first voltage sampling resistor R12; Described the second HVDC output sample circuit is made of the second current sampling resistor R21 and second voltage sample resistance R22; The end of secondary windings T1 is connected with the negative pole of diode D1 and the positive pole of diode D2 respectively, and the other end of secondary windings T1 is connected with the negative pole of diode D3 and the positive pole of diode D4 respectively; The positive pole of diode D1 is connected to the end of the first voltage sampling resistor R12, and the other end of the first voltage sampling resistor R12 is connected to the end of the first current sampling resistor R11, and the other end of the first current sampling resistor R11 is connected to the negative pole of diode D4; The positive pole of diode D3 is connected to the end of second voltage sample resistance R22, and the other end of second voltage sample resistance R22 is connected to the end of the second current sampling resistor R21, and the other end of the second current sampling resistor R21 is connected to the negative pole of diode D2; The positive pole of diode D1 is connected with an end of a capacitor C 1 by a damping resistance R10, and the other end of capacitor C 1 is connected to load; The positive pole of diode D3 is connected with the negative pole of a diode D5 by a damping resistance R20, and the positive pole of diode D5 is connected to load.
4. electric precipitation according to claim 1 is with Intelligent medium-frequency high-voltage dual output dc source, and it is characterized in that: described intermediate frequency step-up transformer comprises secondary windings T1; Described intermediate frequency double half-wave rectification device is made of diode D1, diode D2, diode D3 and diode D4; Described the first HVDC output sample circuit is made of the first current sampling resistor R11 and the first voltage sampling resistor R12; Described the second HVDC output sample circuit is made of the second current sampling resistor R21 and second voltage sample resistance R22; The end of secondary windings T1 is connected with the negative pole of diode D1 and the positive pole of diode D2 respectively, and the other end of secondary windings T1 is connected with the negative pole of diode D3 and the positive pole of diode D4 respectively; The positive pole of diode D1 is connected to the end of the first voltage sampling resistor R12, and the other end of the first voltage sampling resistor R12 is connected to the end of the first current sampling resistor R11, and the other end of the first current sampling resistor R11 is connected to the negative pole of diode D4; The positive pole of diode D3 is connected to the end of the second current sampling resistor R21, and the other end of the second current sampling resistor R21 is connected to the end of second voltage sample resistance R22, and the other end of second voltage sample resistance R22 is connected to the negative pole of diode D2; The positive pole of diode D1 is connected to the first load by a damping resistance R10; The negative pole of diode D2 is connected to the second load by a damping resistance R20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910266743 CN102107157B (en) | 2009-12-28 | 2009-12-28 | Intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910266743 CN102107157B (en) | 2009-12-28 | 2009-12-28 | Intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102107157A CN102107157A (en) | 2011-06-29 |
| CN102107157B true CN102107157B (en) | 2013-04-03 |
Family
ID=44171504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910266743 Active CN102107157B (en) | 2009-12-28 | 2009-12-28 | Intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102107157B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957327A (en) * | 2011-08-31 | 2013-03-06 | 湖南丰日电源电气股份有限公司 | High voltage direct current power supply module controlled by DPS (data processing system) |
| CN102500468B (en) * | 2011-10-18 | 2015-09-23 | 艾尼科环保技术(安徽)有限公司 | A kind of electrostatic precipitator high pressure intermediate frequency power supply and method of supplying power to thereof |
| CN102457198A (en) * | 2012-01-16 | 2012-05-16 | 中钢集团天澄环保科技股份有限公司 | High-voltage power supply of electric dust collector |
| CN103280983A (en) * | 2013-05-03 | 2013-09-04 | 中国石油天然气集团公司 | Power source system of cable formation tester for oil well logging |
| CN103920594A (en) * | 2013-07-31 | 2014-07-16 | 金华大维电子科技有限公司 | High-voltage pulse power supply for electric precipitation |
| CN105689130A (en) * | 2014-11-25 | 2016-06-22 | 东北师范大学 | Negative-feedback dedusting system based on magnetic reinforcement |
| CN105515433A (en) * | 2015-12-27 | 2016-04-20 | 哈尔滨米米米业科技有限公司 | High-precision intermediate-frequency power source |
| CN106655797B (en) * | 2016-10-28 | 2018-11-30 | 西安建筑科技大学 | A kind of light-duty medium frequency heating power source and design method based on high-frequency rectification inversion |
| CN108187914B (en) * | 2018-01-17 | 2020-09-29 | 厦门龙净环保节能科技有限公司 | Power supply control method and device for dust removal and power supply equipment |
| CN108380391B (en) * | 2018-02-11 | 2024-01-30 | 洁通科技（北京）有限公司 | Ozone-free double-path four-voltage high-voltage electrostatic precipitator and control method thereof |
| CN110548597A (en) * | 2019-08-23 | 2019-12-10 | 天津华派集装箱制造有限公司 | Control method of high-frequency high-voltage electrostatic dust suppression power supply |
| CN112536153A (en) * | 2020-11-23 | 2021-03-23 | 西安热工研究院有限公司 | Novel energy-conserving optimization integrated management system of electricity dust removal |
| CN113241957B (en) * | 2021-04-20 | 2022-06-07 | 许昌学院 | Intelligent high-voltage corona control system |
| 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 |
| CN114100860B (en) * | 2022-01-29 | 2022-04-19 | 华能平凉发电有限责任公司 | Flashover voltage control method and device for electric dust collector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6611440B1 (en) * | 2002-03-19 | 2003-08-26 | Bha Group Holdings, Inc. | Apparatus and method for filtering voltage for an electrostatic precipitator |
| CN2852523Y (en) * | 2005-11-22 | 2006-12-27 | 福建龙净环保股份有限公司 | High-frequency high-voltage power supply for electrical dust collection |
| CN201064737Y (en) * | 2007-04-25 | 2008-05-28 | 金华大维电子科技有限公司 | Three-phase high voltage power supply for electric precipitation |
| CN201613181U (en) * | 2009-12-28 | 2010-10-27 | 厦门锐传科技有限公司 | Intelligent medium-frequency high-voltage dual-output direct current power supply for electric dust removal |
-
2009
- 2009-12-28 CN CN 200910266743 patent/CN102107157B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6611440B1 (en) * | 2002-03-19 | 2003-08-26 | Bha Group Holdings, Inc. | Apparatus and method for filtering voltage for an electrostatic precipitator |
| CN2852523Y (en) * | 2005-11-22 | 2006-12-27 | 福建龙净环保股份有限公司 | High-frequency high-voltage power supply for electrical dust collection |
| CN201064737Y (en) * | 2007-04-25 | 2008-05-28 | 金华大维电子科技有限公司 | Three-phase high voltage power supply for electric precipitation |
| CN201613181U (en) * | 2009-12-28 | 2010-10-27 | 厦门锐传科技有限公司 | Intelligent medium-frequency high-voltage dual-output direct current power supply for electric dust removal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102107157A (en) | 2011-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102107157B (en) | Intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal | |
| CN201613181U (en) | Intelligent medium-frequency high-voltage dual-output direct current power supply for electric dust removal | |
| CN107230983B (en) | Power spring application system based on power control and control method thereof | |
| CN101075783B (en) | Three-phase medium-frequency DC high-voltage power supply for ESP | |
| CN103394412B (en) | A kind of electric precipitation high-frequency impulse power power-supply | |
| CN201404859Y (en) | Electric precipitation high frequency pulse feed high-voltage rectification power supply | |
| CN2852523Y (en) | High-frequency high-voltage power supply for electrical dust collection | |
| CN103028494A (en) | Electrostatic-precipitation pulse power supply control system | |
| CN107733245B (en) | A kind of efficient amplitude modulation perseverance high-frequency electric dust removal power circuit | |
| CN103427681A (en) | High-frequency high-voltage electrostatic dust collection power source | |
| CN202410836U (en) | Frequency-variable intermediate-frequency power supply for electrostatic precipitation | |
| CN101820216A (en) | Alternating current boosting power factor correction circuit | |
| CN112886718B (en) | Resonance compensation type current transformer induction power taking system | |
| CN201504183U (en) | Three-phase, three-level, medium-frequency and high-voltage DC power supply for ESP | |
| CN100382416C (en) | Variable-frequency air-condition power supply power factor correcting device | |
| CN102755931A (en) | Variable-frequency medium-frequency power supply for electrostatic dust collection | |
| CN201048352Y (en) | Three-phase intermediate frequency DC high voltage power supply for ESP | |
| CN201616764U (en) | High-voltage direct-current power supply controlled by frequency converter | |
| CN203540712U (en) | High-frequency pulsed power supply for electric dust precipitation | |
| CN205356156U (en) | Intelligent high frequency and high voltage DC power supply based on DSP | |
| CN203018208U (en) | Electrostatic dust-removal pulse power source control system | |
| CN206585479U (en) | Constant flow high pressure power supply and electric cleaner | |
| CN102233301A (en) | High-frequency pulse power supply for electrostatic dust collector | |
| CN208754063U (en) | A kind of harmonic energy recycling circuit | |
| CN200954464Y (en) | DC. bias pulse high-voltage power supply of electric dust collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QINGNENG TECHNOLOGY CO., LTD. Effective date: 20140416 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140416 Address after: 361000 Fujian province Xiamen Software Park Siming District two room 104 No. 15 long expected Patentee after: XIAMEN RECH TECHNOLOGY Co.,Ltd. Patentee after: Cleanergy Technology Co.,Ltd. Address before: 361000, Xiamen Software Park, Fujian Province, two expect No. 15, Lane 104 Patentee before: XIAMEN RECH TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180608 Address after: 361000 Q second unit, 8 Xinfeng three road, torch garden, Xiamen torch high tech Zone, Fujian. Patentee after: XIAMEN RECH TECHNOLOGY Co.,Ltd. Address before: 361000 two Software Park No. 15, room 104, Siming District, Xiamen, Fujian Co-patentee before: Cleanergy Technology Co.,Ltd. Patentee before: XIAMEN RECH TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 361000 1502, zone a, innovation building, software park, torch high tech Zone, Xiamen, Fujian Patentee after: Xiamen Ruichuan Technology Co.,Ltd. Country or region after: China Address before: 361000 Q second unit, 8 Xinfeng three road, torch garden, Xiamen torch high tech Zone, Fujian. Patentee before: XIAMEN RECH TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |