CN201064737Y - Three-phase high voltage power supply for electric precipitation - Google Patents
Three-phase high voltage power supply for electric precipitation Download PDFInfo
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- CN201064737Y CN201064737Y CNU2007201087169U CN200720108716U CN201064737Y CN 201064737 Y CN201064737 Y CN 201064737Y CN U2007201087169 U CNU2007201087169 U CN U2007201087169U CN 200720108716 U CN200720108716 U CN 200720108716U CN 201064737 Y CN201064737 Y CN 201064737Y
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- power supply
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- electric precipitation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
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Abstract
The utility model belongs to the power supply technique field for electric precipitation, relating to a three-phase high-voltage power supply. The utility model comprises a main circuit switch that is composed of a circuit breaker in series connection with a contactor, and the main circuit switch is connected with the power supply; a bidirectional triode thyristor circuit is connected with a main circuit switch, an input/output board and a three-phase high-voltage silicon rectifier; a three-phase high-voltage silicon rectifier inputs the DC high voltage obtained through the rectifier to the electrostatic precipitator after the filter resistance; an input/output board is connected with the three-phase high-voltage silicon rectifier and the vibration board; a digital signal processing controller is connected with the input/output board, the digital signal processing controller regulates the conduction angle of the bidirectional triode thyristor automatically, the slow opening and closing are achieved, then the contactor is tripped off , making the main circuit impact to drop to the lowest. The utility model solves the problems that the current three-phase power has poor anti-interference performance with slow data sampling, poor graphic display capability, and the used reactor has high noise with great loss and high failure rate, etc.
Description
[technical field]
The utility model belongs to the electric precipitation power technique fields, particularly a kind of electric precipitation three-phase high-voltage dc source that is applicable to the full electric field optimal control in dynamic of high-voltage electrostatic dust separator.
[background technology]
Electric cleaner is the equipment that utilizes electric power that dust is separated from air-flow.The purification process of dust-contained airflow in electric cleaner can be in three stages: 1, gas ionization and dust are charged: apply dc high voltage between corona discharge electrode and dust collector pole, make near the gas ionization the corona discharge electrode, produce a large amount of negative ions.In the corona zone, cation is inhaled in the past by corona discharge electrode immediately, and anion is then because of being moved by ordering about to dust collector pole of electric field force.2, dust deposit: after charged dust arrives dust collector pole, emit negative electrical charge and deposition.3, deashing: the dust collection is gone into ash bucket.
Power supply is one of parts of electric cleaner key.Present electric precipitation has power supply balance, utilization rate of electrical advantages of higher with three phase mains, but also exists the weak point of some.At first, its main control chip adopts 16 single-chip microcomputers or following configuration, and its anti-interference is poor, data sampling speed is slow, a little less than the graphics display capability; Secondly, the structural design that adds reactor is adopted on the former limit of its rectifier transformer, and in the use, the electric cleaner loss is big, noise big, complex process, fault rate height; Once more, can not accept as boiler load signal, flue gas turbidity signal, electric field strength signal, also lack and other controller between carry out intelligent data exchange and communication, its function singleness, efficiency is low and managerial ability a little less than; At last, voltage rapping function falls in nothing.So, be necessary present electric cleaner is done some improvement and innovation with the three-phase high-voltage power supply, to overcome the above-mentioned shortcoming that exists.
[summary of the invention]
The utility model discloses a kind of electric precipitation three-phase high-voltage power supply, solved that existing three phase mains interference free performance is poor, data sampling speed is slow, graphics display capability is weak, use big, the problems such as loss is big, fault rate height of reactor noise, the dc voltage ripple that also has power factor height, output is little, improve the advantage of output dc voltage and electric current, and by participations control such as boiler load and discharging turbidity signal and increase and fall voltage rapping function, improve efficiency of dust collection, reduce concentration of emission, energy-conservation, reduction rapping frequency, increase the service life.
Technical solution adopted in the utility model: electric precipitation three-phase high-voltage power supply comprises:
The major loop switch links to each other with power supply, is formed by breaker and contactor serial connection;
The bidirectional triode thyristor loop links to each other with major loop switch, input/output board and three-phase high-voltage silicon rectifier;
Three-phase high-voltage silicon rectifier, the high direct voltage that obtains by this rectifier are imported electric cleaner after through resistance filtering;
Input/output board links to each other with three-phase high-voltage silicon rectifier, rapping plate;
The Digital Signal Processing controller, the Digital Signal Processing controller links to each other with input/output board, and the Digital Signal Processing controller is regulated the angle of flow of bidirectional triode thyristor automatically, realizes slow opening and closing, and the tripping contactor makes the major loop impact reduce to minimum then.
Described electric precipitation three-phase high-voltage power supply, the Digital Signal Processing controller adopts 32 microcomputer chips.
Described electric precipitation three-phase high-voltage power supply, Digital Signal Processing controller possess and centralized control system and other controller between intelligent data exchange and communication function.
Described electric precipitation three-phase high-voltage power supply, input/output board are accepted boiler load signal, flue gas turbidity signal, electric field strength signal, transport to the Digital Signal Processing controller after treatment and participate in control.
Described electric precipitation three-phase high-voltage power supply, the Digital Signal Processing controller now falls the voltage rapping to deduster by input/output board, rapping are firm and hard.
Described electric precipitation three-phase high-voltage power supply, the three-phase high-voltage silicon rectifier adopts high impedance structures, comprises once and secondary coil.
Described electric precipitation three-phase high-voltage power supply, the rapping plate is by actuating mechanism controls and protection, and executing agency is made up of breaker, electrothermal relay, contactor.
Described electric precipitation three-phase high-voltage power supply, the rapping plate is by actuating mechanism controls and protection, and executing agency is made up of bidirectional triode thyristor.
Described electric precipitation three-phase high-voltage power supply is incorporated the rapping plate into after the breaker of executing agency, electrothermal relay and the contactor encapsulation.
Described electric precipitation three-phase high-voltage power supply is incorporated the rapping plate into after the bidirectional triode thyristor encapsulation of executing agency.
Electric precipitation of the present utility model passes through major loop switch and bidirectional triode thyristor loop with the Digital Signal Processing controller of three-phase high-voltage power supply, realize slowly opening and slowly closing load, tripping contactor then, major loop is impacted reduces to minimum level, improved equipment reliability, increase the service life.Controller adopts i.e. 32 the industrial microcomputer chips of DSP28XX, improves its interference free performance, data sampling speed and graphics display capability.Rectifier transformer adopts the high impedance structures design, has improved the efficient of rectifier transformer, has overcome that loss is big, noise big, complex process, shortcoming that fault rate is high.
Electric precipitation of the present utility model is not only accepted as boiler load signal, flue gas turbidity signal, electric field strength signal with the three-phase high-voltage power supply and is participated in accurately control, and also can carry out exchanges data and communication between controller and centralized control system and other controller.The utility model possesses the voltage of falling rapping function simultaneously, improve efficiency of dust collection, reduce concentration of emission, significantly energy-conservation, reduce rapping frequency and life-saving.
Except above-mentioned advantage, the also compatible advantage of common three phase mains is a kind of desirable renewal product with the three-phase high-voltage power supply for electric precipitation of the present utility model.
[description of drawings]
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is a controller function schematic block diagram of the present utility model.
Fig. 3 is an input/output board function schematic block diagram of the present utility model.
Fig. 4 is a rapping plate function schematic block diagram of the present utility model.
The structural representation of Fig. 5 the utility model embodiment two.
The structural representation of Fig. 6 the utility model embodiment three.
In the diagram, major loop switch 1, bidirectional triode thyristor loop 2, three-phase high-voltage silicon rectifier 3, DSP (Digital Signal Processing) controller 4, I/O (input and output) plate 5, rapping plate 6, executing agency 7 of electric motor of shaker, electric cleaner 8.
[specific embodiment]
Below in conjunction with accompanying drawing the utility model embodiment is elaborated.
Embodiment one: shown in Fig. 1,2,3,4, major loop switch 1 links to each other with power supply A, B, C, and major loop switch 1 is formed by breaker and contactor serial connection; Bidirectional triode thyristor loop 2 links to each other with major loop switch 1, input/output board 5 and three-phase high-voltage silicon rectifier 3, and one-piece type bidirectional triode thyristor structure is adopted in bidirectional triode thyristor loop 2.Three-phase high-voltage silicon rectifier 3 links to each other with electric cleaner 8 by resistance R 1; Input/output board 5 links to each other with three-phase high-voltage silicon rectifier 3, rapping plate 6, in three-phase high-voltage silicon rectifier 3, resistance R 2, R3 and R4 are voltage sampling and current sampling, after its sampled signal is handled by I/O plate 5, input dsp controller 4 forms a closed loop automatic control system.Digital Signal Processing controller 4 links to each other with input/output board 5, and Digital Signal Processing controller 4 adopts i.e. 32 the industrial microcomputer chips of DSP28XX.Power supply A, B, C pass through the breaker and the contactor of major loop switch 1, through bidirectional triode thyristor loop 2 by the dsp controller 4 control angles of flow, the elementary winding input of input three-phase high-voltage silicon rectifier 3, secondary boosts the back by 6 high voltage silicon rectifier stack bridge rectifiers, obtain the high direct voltage of negative polarity, then through resistance R 1 filtering input electric cleaner 8.
As shown in Figure 2, the control flow summary of dsp controller 4: the outer signals that master controller CPU gathers the I/O plate by data amplification, conditioning, isolating interface circuit, after gathering the input control signal of keyboard simultaneously, master controller CPU carries out data storage and computing by RAM memory, clock and data storage, on the one hand operation result is outwards carried signal by the I/O plate, be controlled at display graphics and parameter on the liquid crystal display by 13305 liquid crystal on the other hand, carry out mutual communication by two serial ports and centralized control system and other controller simultaneously.
After boiler load signal, flue gas turbidity signal, electric field strength signal were transported to 5 modulation of I/O plate, input dsp controller 4 participated in control.Dsp controller 4 has the communication interface between centralized control system interface and the multi-controller.Dsp controller 4 is amplified anode and cathode rapping signal by 5 conversions of I/O plate by 6 modulation of rapping plate, directly control the contactor of electric motor loop, makes the computing Based Intelligent Control of anode and cathode electric motor of shaker according to dsp controller 4.Rapping plate 6 becomes the signal transition of dsp controller 4 signal of an executing agency of operable automatically electric motor of shaker.Executing agency 7 of the electric motor of shaker that links to each other with rapping plate 6 is made up of breaker, electrothermal relay, a contactor, be used to control motor startup, stop and protecting.
Embodiment two: as shown in Figure 5, the operating part in executing agency 7 of electric motor of shaker adopts the bidirectional triode thyristor Based Intelligent Control, realizes soft shutoff, and this structure does not have mechanical contact, has prolonged service life.Other content of present embodiment is identical with embodiment one.
Embodiment three: as shown in Figure 6, with the operating part in executing agency 7 of electric motor of shaker, adopt packaging to add in the rapping plate 6 as the bidirectional triode thyristor of breaker, electrothermal relay, contactor or the embodiment two of embodiment one, be integrated on the circuit board.Like this, not only improve integrated level, and fault rate is low, use or replace convenience.Other content of present embodiment is identical with embodiment one.
Claims (10)
1. electric precipitation three-phase high-voltage power supply comprises: the major loop switch, link to each other with power supply, and form by breaker and contactor serial connection;
The bidirectional triode thyristor loop links to each other with major loop switch, input/output board and three-phase high-voltage silicon rectifier;
Three-phase high-voltage silicon rectifier, the high direct voltage that obtains by this rectifier are imported electric cleaner after through resistance filtering;
Input/output board links to each other with three-phase high-voltage silicon rectifier, rapping plate; It is characterized in that: also comprise the Digital Signal Processing controller, the Digital Signal Processing controller links to each other with input/output board, and the Digital Signal Processing controller is regulated the angle of flow of bidirectional triode thyristor automatically.
2. electric precipitation three-phase high-voltage power supply according to claim 1 is characterized in that: the Digital Signal Processing controller adopts 32 microcomputer chips.
3. electric precipitation three-phase high-voltage power supply according to claim 2 is characterized in that: Digital Signal Processing controller and centralized control system and other controller link.
4. according to each described electric precipitation three-phase high-voltage power supply of claim 1-3, it is characterized in that: the sample circuit of input/output board and boiler load signal, flue gas turbidity signal, electric field strength signal links.
5. according to each described electric precipitation three-phase high-voltage power supply of claim 1-3, it is characterized in that: Digital Signal Processing controller and rapping plate link.
6. electric precipitation three-phase high-voltage power supply according to claim 1 is characterized in that: the three-phase high-voltage silicon rectifier adopts high impedance structures, comprises once and secondary coil.
7. electric precipitation three-phase high-voltage power supply according to claim 1 is characterized in that: the rapping plate is by actuating mechanism controls and protection, and executing agency is made up of breaker, electrothermal relay, contactor.
8. electric precipitation three-phase high-voltage power supply according to claim 7 is characterized in that: the rapping plate is by actuating mechanism controls and protection, and executing agency is made up of bidirectional triode thyristor.
9. electric precipitation three-phase high-voltage power supply according to claim 7 is characterized in that: incorporate the rapping plate into after the breaker of executing agency, electrothermal relay and the contactor encapsulation.
10. electric precipitation three-phase high-voltage power supply according to claim 8 is characterized in that: incorporate the rapping plate into after the bidirectional triode thyristor encapsulation of executing agency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201087169U CN201064737Y (en) | 2007-04-25 | 2007-04-25 | Three-phase high voltage power supply for electric precipitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201087169U CN201064737Y (en) | 2007-04-25 | 2007-04-25 | Three-phase high voltage power supply for electric precipitation |
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| Publication Number | Publication Date |
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| CN201064737Y true CN201064737Y (en) | 2008-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201087169U Expired - Fee Related CN201064737Y (en) | 2007-04-25 | 2007-04-25 | Three-phase high voltage power supply for electric precipitation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780436B (en) * | 2009-01-20 | 2012-12-12 | 金华大维电子科技有限公司 | Digital signal processor (DSP) embedded controller for electric dust-removing three-phase high-voltage direct-current power supply |
| CN102107157B (en) * | 2009-12-28 | 2013-04-03 | 厦门锐传科技有限公司 | Intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal |
| CN106972467A (en) * | 2017-02-20 | 2017-07-21 | 浙江师范大学 | A kind of power frequency constant flow high pressure power supply with hardware open loop protection circuit |
| CN110943493A (en) * | 2019-10-31 | 2020-03-31 | 厦门龙净环保节能科技有限公司 | Three-phase direct current high voltage power supply intermittent power supply circuit for electric precipitation |
| CN111974551A (en) * | 2020-08-05 | 2020-11-24 | 大唐淮南洛河发电厂 | System for reducing power consumption of electrostatic dust collector and control method thereof |
-
2007
- 2007-04-25 CN CNU2007201087169U patent/CN201064737Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780436B (en) * | 2009-01-20 | 2012-12-12 | 金华大维电子科技有限公司 | Digital signal processor (DSP) embedded controller for electric dust-removing three-phase high-voltage direct-current power supply |
| CN102107157B (en) * | 2009-12-28 | 2013-04-03 | 厦门锐传科技有限公司 | Intelligent medium-frequency high-voltage double-output direct current power supply for electric dust removal |
| CN106972467A (en) * | 2017-02-20 | 2017-07-21 | 浙江师范大学 | A kind of power frequency constant flow high pressure power supply with hardware open loop protection circuit |
| CN106972467B (en) * | 2017-02-20 | 2019-10-01 | 浙江师范大学 | A kind of power frequency constant flow high pressure power supply with hardware open loop protection circuit |
| CN110943493A (en) * | 2019-10-31 | 2020-03-31 | 厦门龙净环保节能科技有限公司 | Three-phase direct current high voltage power supply intermittent power supply circuit for electric precipitation |
| CN110943493B (en) * | 2019-10-31 | 2021-11-30 | 厦门龙净环保节能科技有限公司 | Three-phase direct current high voltage power supply intermittent power supply circuit for electric precipitation |
| CN111974551A (en) * | 2020-08-05 | 2020-11-24 | 大唐淮南洛河发电厂 | System for reducing power consumption of electrostatic dust collector and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20120425 |