CN204620218U - A kind of electric precipitation pulse power - Google Patents
A kind of electric precipitation pulse power Download PDFInfo
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- CN204620218U CN204620218U CN201520200149.4U CN201520200149U CN204620218U CN 204620218 U CN204620218 U CN 204620218U CN 201520200149 U CN201520200149 U CN 201520200149U CN 204620218 U CN204620218 U CN 204620218U
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Abstract
The utility model discloses a kind of electric precipitation pulse power, its drip irrigation device includes main power source, DC power supply circuit, DSP embedded Control circuit, pulse transformer circuit, main power source is by exporting basic DC voltage after DC power supply circuit, basis DC voltage is for generation of the basic electric field force of electric precipitation electric field, pulse transformer circuit produces the high-voltage pulse signal being used for electric precipitation electric field, high-voltage pulse signal superposes with basic electric field force and produces negative high voltage voltage signal and act in electric precipitation electric field, by basic DC voltage superposing the mode that high-voltage pulse is powered to electric precipitation electric field, change the pattern that original constant electrical power is powered, the electric field force provided the foundation for electric precipitation electric field and for the charged high energy pulse of dust, improve the trapping ability of electric cleaner fine solid particle, improve the flashover point of electric precipitation electric field, solve the inverse corona problem of high resistivity dust, effectively increase the efficiency of dust collection of electric cleaner, reduce energy consumption.
Description
Technical field
The utility model relates to a kind of dust pelletizing system, and in particular, it relates to a kind of electric precipitation pulse power.
Background technology
Along with the development of modern industry, environmental problem is more and more valued by the people with reference to air pollution, water pollutions, noise pollution etc., and central especially air pollution problems inherent is attached most importance to.And dust in industrial production and smog cause air-polluting arch-criminal, in order to reduce its discharge, various dust suppression must be taked to be controlled.
Conventional industrial dedusting equipment is electrostatic precipitator.Electrostatic precipitator is made up of dedusting body and high-voltage power supply, and high voltage source is emphasis in whole electrostatic precipitator and core.High voltage source provides high pressure negative electricity for deduster electric field, and the gas in electric field ionizes under the effect of high pressure negative electricity, and the negative electricity of generation is from making dust charged, and dust, by after electrode adsorption, makes it fall into ash bucket by rapping.
The parameter weighing dust electric conductivity quality is called the ratio resistance of dust, and ratio resistance is one and important parameter affecting dust removal performance.For the dust of middle low resistivity, promoting corona current by lifting secondary current density can improve dust removing effects, but power consumption increases large, makes major part current waist in the electric field; For the dust of middle high specific resistance, in dc source, improve charged effect by increasing secondary power output, but easily cause inverse corona that efficiency of dust collection is reduced.
At present, most widely used electrostatic precipitator power supply is power frequency supply in the industry.But there is a lot of defect in power frequency supply: power-efficient is low, efficiency of dust collection is low, flashing discharges, volume is large, high cost.Known by experiment, in dc source, by interval or charge ratio power (pulse power supply) can inverse corona be avoided, but average voltage significantly reduces, and crest voltage does not change, and improves efficiency of dust collection limited.
Along with the raising that Environmental protection requires, electrostatic precipitator power frequency supply is more and more difficult meets new environmental protection standard, and will replace original electric cleaner power frequency supply completely and waste with causing a large amount of human and material resources.Therefore, what has utilized original electric dust-removing power supply with reference to, the dedusting power source that ESP Efficiency is higher and development is sent as an envoy to is imperative.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is that providing a kind of can improve the efficiency of dust collection of electric cleaner and the electric precipitation pulse power of reduction energy consumption.
For achieving the above object, the utility model provides with reference to lower technical scheme: a kind of electric precipitation pulse power, include main power source, DC power supply circuit, DSP embedded Control circuit, pulse transformer circuit, isolating switch, cooling system, described main power source is by exporting basic DC voltage after DC power supply circuit, described basic DC voltage is for generation of the basic electric field force of electric precipitation electric field, described pulse transformer circuit produces the high-voltage pulse signal being used for electric precipitation electric field, described high-voltage pulse signal superposes with basic electric field force and produces negative high voltage voltage signal and act in electric precipitation electric field, described DSP embedded Control circuit exports the control signal controlling DC power supply circuit and pulse transformer circuit respectively, described isolating switch is coupled on DC power supply circuit and pulse transformer circuit simultaneously, described isolating switch is that two cutter tetrad isolating switches produce four kinds of electric field force duties for controlling electric precipitation electric field, described cooling system is used for the radiating treatment of all circuits.
By adopting technique scheme, by superposing high-voltage pulse signal on basic DC voltage, and the power supply after superposition is supplied to electric precipitation electric field.Such power supply mode changes the pattern that original constant electrical power is powered, the electric field force provided the foundation for electric precipitation electric field and for the charged high energy pulse of dust, improve the trapping ability of electric cleaner fine solid particle, improve the flashover point of electric precipitation electric field, solve the inverse corona problem of high resistivity dust, effectively increase the efficiency of dust collection of electric cleaner, reduce energy consumption.Meanwhile, adopt the scheme that reuses of original power supply, effectively reduce the wasting of resources, reduce the difficulty of construction reformation, greatly saved cost.
The utility model is set to further: described DC power supply circuit includes dc source thyristor driving circuit, described pulse transformer circuit includes pulse power thyristor driving circuit, IGBT drive circuit, described DSP embedded Control circuit includes DSP control core unit
Described dc source thyristor driving circuit includes optical fiber interface, described DSP control core unit controls the direct current thyristor dc power supply on electric cleaner by optical fiber interface, main power source is changed into the basic dc source that electric cleaner is powered, and export basic DC voltage, for electric precipitation electric field provides basic electric field force
Described IGBT drive circuit output pulse width frequency control signal control impuls power supply thyristor driving circuit exports high-voltage pulse signal, described DSP control core unit is connected with IGBT drive circuit, pulsewidth after being modulated by output and frequency signal are in IGBT drive circuit, described IGBT drive circuit is exported accordingly for the pulse duration frequency control signal of control impuls power supply thyristor driving circuit, makes the pulse frequency of pulse power thyristor driving circuit at 0-100Hz continuously adjustabe.
The utility model is set to further: described isolating switch, contact ground connection, a contact receive basic DC voltage, a contact reception high-voltage pulse signal, last contact connects electric precipitation electric field, and described isolating switch manually controls to make electric precipitation electric field generation ground connection, isolated foundation DC voltage, separately high-voltage pulse signal and basic DC voltage and high-voltage pulse signal superpose four kinds of duties.
The utility model is set to further: described DC power supply circuit also includes pulse distribution, three-phase rectifier transformer, filter capacitor and filter inductance, described pulse distribution exports three-phase alternating-current supply, after three-phase rectifier transformer, filter capacitor and filter inductance, 0-2500V DC voltage can be exported.
The utility model is set to further: described pulse transformer circuit also includes pulse transformer, the once survey winding of described pulse transformer is in series with storage capacitor and IGBT switch successively, on described IGBT switch, inverse parallel has diode, is connected after the secondary side winding serial coupling capacitor of described pulse transformer with isolating switch.
The utility model is set to further: described DSP embedded Control circuit also includes photoelectric isolating circuit, and described DSP control core unit is connected with DC power supply circuit and pulse transformer circuit respectively by photoelectric isolating circuit.
The utility model has following advantage: by superposing of basic DC voltage and high-voltage pulse signal, significantly can improve pulse energy, the charged time is made to rise to Microsecond grade from Millisecond, and this power supply mode changes the pattern that original constant electrical power is powered, the electric field force provided the foundation for electric precipitation electric field and for the charged high energy pulse of dust, improve the trapping ability of electric cleaner fine solid particle, improve the flashover point of electric precipitation electric field, solve the inverse corona problem of high resistivity dust, effectively increase the efficiency of dust collection of electric cleaner, reduce energy consumption.
Adopt the scheme that reuses of original power supply, original electric precipitation dc source is made the best use of everything, does not cause the wasting of resources.This electric precipitation pulse power, easy for installation, be specially adapted to continue utilize former rectification to become the occasion increasing and decreasing row again, or reduce discharging tight occasion in transformation man-hour.The efficiency of dust collection of electric dust-removing equipment can be significantly improved when not changing deduster body and increasing electric field.
Accompanying drawing explanation
Fig. 1 is the circuit structure block diagram of a kind of electric precipitation pulse power of the utility model;
Fig. 2 is the power principle figure of a kind of electric precipitation pulse power of the utility model;
Fig. 3 is the electric field ground connection working state figure of a kind of electric precipitation pulse power of the utility model;
Fig. 4 is that the electric field of a kind of electric precipitation of the utility model pulse power connects basic dc source working state figure;
Fig. 5 is that the electric field of a kind of electric precipitation pulse power of the utility model connects high-voltage pulse signal working state figure;
Fig. 6 is that the electric field of a kind of electric precipitation pulse power of the utility model meets negative high voltage voltage ratings figure;
Fig. 7 is the negative high voltage voltage waveform after the superposition of a kind of electric precipitation pulse power of the utility model.
In figure: 1, DC power supply circuit; 2, DSP embedded Control circuit; 3, pulse transformer circuit; 4, isolating switch; 5, cooling system.
Detailed description of the invention
Shown in 7, a kind of electric precipitation pulse power of the present embodiment, include main power source, DC power supply circuit 1, DSP embedded Control circuit 2, pulse transformer circuit 3, isolating switch 4, cooling system 5, described main power source is by exporting basic DC voltage after DC power supply circuit 1, described basic DC voltage is for generation of the basic electric field force of electric precipitation electric field, described pulse transformer circuit 3 produces the high-voltage pulse signal being used for electric precipitation electric field, described high-voltage pulse signal superposes with basic electric field force and produces negative high voltage voltage signal and act in electric precipitation electric field.
Described DSP embedded Control circuit 2 exports the control signal controlling DC power supply circuit 1 and pulse transformer circuit 3 respectively, described isolating switch 4 is coupled on DC power supply circuit 1 and pulse transformer circuit 3 simultaneously, described isolating switch 4 is that two cutter tetrad isolating switches 4 produce four kinds of electric field force duties for controlling electric precipitation electric field, and described cooling system 5 is for the radiating treatment of all circuits.
Described DC power supply circuit 1 includes dc source thyristor driving circuit, and described pulse transformer circuit 3 includes pulse power thyristor driving circuit, IGBT drive circuit, and described DSP embedded Control circuit 2 includes DSP control core unit,
Described dc source thyristor driving circuit includes optical fiber interface, described DSP control core unit controls the direct current thyristor dc power supply on electric cleaner by optical fiber interface, main power source is changed into the basic dc source that electric cleaner is powered, and export basic DC voltage, for electric precipitation electric field provides basic electric field force
Described IGBT drive circuit output pulse width frequency control signal control impuls power supply thyristor driving circuit exports high-voltage pulse signal, described DSP control core unit is connected with IGBT drive circuit, pulsewidth after being modulated by output and frequency signal are in IGBT drive circuit, described IGBT drive circuit is exported accordingly for the pulse duration frequency control signal of control impuls power supply thyristor driving circuit, makes the pulse frequency of pulse power thyristor driving circuit at 0-100Hz continuously adjustabe.
Described isolating switch 4, contact ground connection, a contact receive basic DC voltage, a contact reception high-voltage pulse signal, last contact connects electric precipitation electric field, and described isolating switch 4 manually controls to make electric precipitation electric field generation ground connection, isolated foundation DC voltage, separately high-voltage pulse signal and basic DC voltage and high-voltage pulse signal superpose four kinds of duties.
Described DC power supply circuit 1 also includes pulse distribution, three-phase rectifier transformer, filter capacitor and filter inductance, described pulse distribution exports three-phase alternating-current supply, after three-phase rectifier transformer, filter capacitor and filter inductance, 0-2500V DC voltage can be exported.
Described pulse transformer circuit 3 also includes pulse transformer, the once survey winding of described pulse transformer is in series with storage capacitor and IGBT switch successively, on described IGBT switch, inverse parallel has diode, is connected after the secondary side winding serial coupling capacitor of described pulse transformer with isolating switch 4.
Described DSP embedded Control circuit 2 also includes photoelectric isolating circuit, and described DSP control core unit is connected with DC power supply circuit 1 and pulse transformer circuit 3 respectively by photoelectric isolating circuit.
With reference to shown in Fig. 2, the described electric precipitation pulse power by two power supplys for dedusting electric field provides power supply.First power supply, hereinafter referred to as dc source 1, is the dc source in original electric cleaner, belongs to the device that reuses, for circuit provides basic dc source.Second power supply, hereinafter referred to as the pulse power 3, for circuit provides high-voltage pulse.
Dc source is connected on isolating switch 4 by coupling inductance, belong to the electric supply installation of former electric cleaner, the pulse power controls the direct current thyristor dc power supply of dc source by optical fiber interface, former dc source is transformed into the basic dc source that electric cleaner is powered, export basic DC voltage, be supplied to the electric field force that electric precipitation electric field is basic.
With reference to the pulse transformer circuit 3 shown in Fig. 2, pulse transformer T winding is by a storage capacitor C1 IGBT switch Q and anti-paralleled diode D in parallel, secondary side winding serial coupling capacitor C2 is connected with Electric Field in ESP, and coupling capacitance C2 can prevent the short circuit of pulse transformer T and high-voltage DC power supply.
Further, pulse transformer winding is connected with DC power supply circuit 1, and Secondary Winding is connected with dc source by an isolating switch 4, with reference to shown in figure, switched by isolating switch 4 state, high-voltage pulse superposes with basic DC voltage and is supplied to electric precipitation electric field.
Described DC power supply circuit 1, comprise pulse distribution, three-phase rectifier transformer, filter capacitor and filter inductance, pulse distribution exports three-phase alternating current, through silicon-controlled voltage regulation, three-phase rectifier transformer, three phase full bridge rectification, electric capacity and filter inductance after filtering, exports 0-2500V direct current.
Before pulses generation, now IGBT switch Q disconnects, and DC power supply circuit 1 charges to+Upulse for storage capacitor; Coupling capacitance by dc source for it charges to-Udc.The leakage inductance of storage capacitor, coupling capacitance, pulse transformer and electric field electric capacity together form a series resonant circuit.IGBT conducting, resonance circuit closes, and the positive half period of sine-wave current is by IGBT, and when current zero-crossing point, controller control IGBT turns off, and electric current negative half-cycle passes through through diode D, and feedback energy is to storage capacitor C1 reverse charge.A cycle of oscillation completes, and forms an action of low-voltage pulse.This action of low-voltage pulse boosts through pulse transformer, forms high-voltage pulse.High-voltage pulse is superimposed upon on the DC voltage of dc source generation by coupling capacitance, the waveform supply deduster electric field after superposition.
The described electric precipitation pulse power also includes the isolating switch 4 of two cutter tetrads, changes working state of electrical dust remover by switching over, with reference to shown in Fig. 3, and contact ground; Contact web plug-in strip is connected with dc source; Contact is connected with Electric Field in ESP; Contact web plug-in strip is connected with the pulse power.When two plug-in strips, all beat on contact, electric cleaner is in ground state, and when plug-in strip is beaten on contact, plug-in strip is beaten on contact, and the pulse power provides voltage for electric cleaner, with reference to shown in Fig. 4; When plug-in strip is beaten on contact, plug-in strip is beaten on contact, and dc source provides voltage for electric cleaner separately, with reference to shown in Fig. 5; When two plug-in strips, all beat on contact, the pulse power exports high-voltage pulse and is superimposed upon on the DC voltage of dc source output, and the power supply after superposition is supplied to electric precipitation electric field, with reference to shown in Fig. 6.
With reference to shown in Fig. 1, DSP embedded Control circuit 2 comprises main power source, dc source thyristor driving circuit, pulse power thyristor driving circuit, IGBT drive circuit, photoelectric isolating circuit, DSP control core unit.Main power source is powered for other functional circuits.The connection of hardware system peripheral interface circuit and DSP key control unit all adopts Phototube Coupling scheme.DSP key control unit is by adjustment PWM pulse-width signal, convert thereof into analog input dc source thyristor driving circuit, dc source thyristor driving circuit controls dc source thyristor driving circuit trigger impulse by optical fiber interface and exports, regulate turn on thyristors angle, thus change the size that dc source exports basic DC voltage; DSP control core unit adjustment PWM pulse-width signal, convert thereof into analog input pulse power thyristor driving circuit, control impuls power supply thyristor driving circuit trigger impulse exports, and regulates turn on thyristors angle, thus changes pulse voltage amplitude; Controller controls the pulsewidth and the frequency that export pulse to the pulsewidth of the pulse-width modulation PWM waveform of IGBT, frequency by adjustment, makes the pulse frequency of the pulse power be 0-100Hz, continuously adjustabe.The communication of impulse power electrical source and host computer and touch-screen manual operator is completed by communicating circuit; Exception and troubleshooting is carried out by exception handling circuit and analog quantity acquisition circuit monitoring power supply; possess short-circuit protection, open-circuit-protection, over-voltage over-current protection; real-time adjustment input pulse busbar voltage is to ensure the functions such as stable output; possess frequency modulation, amplitude modulation, the wide function of tune simultaneously, have that efficiency of dust collection is high, energy consumption and performance good, security reliability high.
Fig. 7 is the voltage (U that this pulse power is supplied to electric precipitation electric field
eSP) waveform.When the isolating switch 4 of the pulse power is operated in overlay model, dc source provides a negative dc voltage for Electric Field in ESP, and the pulse power provides a high-voltage pulse, and two voltages, through coupling inductance and coupling capacitance superposition, form negative high voltage electricity U
eSP, supply Electric Field in ESP uses.
The above is only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. an electric precipitation pulse power, it is characterized in that: include main power source, DC power supply circuit, DSP embedded Control circuit, pulse transformer circuit, isolating switch, described main power source is by exporting basic DC voltage after DC power supply circuit, described basic DC voltage is for generation of the basic electric field force of electric precipitation electric field, described pulse transformer circuit produces the high-voltage pulse signal being used for electric precipitation electric field, described high-voltage pulse signal superposes with basic electric field force and produces negative high voltage voltage signal and act in electric precipitation electric field, described DSP embedded Control circuit exports the control signal controlling DC power supply circuit and pulse transformer circuit respectively, described isolating switch is coupled on DC power supply circuit and pulse transformer circuit simultaneously.
2. a kind of electric precipitation pulse power according to claim 1, it is characterized in that: described DC power supply circuit includes dc source thyristor driving circuit, described pulse transformer circuit includes pulse power thyristor driving circuit, IGBT drive circuit, described DSP embedded Control circuit includes DSP control core unit
Described dc source thyristor driving circuit includes optical fiber interface, and described DSP control core unit controls the direct current thyristor dc power supply on electric cleaner by optical fiber interface,
Described IGBT drive circuit output pulse width frequency control signal control impuls power supply thyristor driving circuit exports high-voltage pulse signal, described DSP control core unit is connected with IGBT drive circuit, pulsewidth after being modulated by output and frequency signal are in IGBT drive circuit, described IGBT drive circuit is exported accordingly for the pulse duration frequency control signal of control impuls power supply thyristor driving circuit, makes the pulse frequency of pulse power thyristor driving circuit at 0-100Hz continuously adjustabe.
3. a kind of electric precipitation pulse power according to claim 2, it is characterized in that: described isolating switch, contact ground connection, a contact receive basic DC voltage, a contact reception high-voltage pulse signal, last contact connects electric precipitation electric field, and described isolating switch manually controls to make electric precipitation electric field generation ground connection, isolated foundation DC voltage, separately high-voltage pulse signal and basic DC voltage and high-voltage pulse signal superpose four kinds of duties.
4. a kind of electric precipitation pulse power according to claim 2, it is characterized in that: described DC power supply circuit also includes pulse distribution, three-phase rectifier transformer, filter capacitor and filter inductance, described pulse distribution exports three-phase alternating-current supply, after three-phase rectifier transformer, filter capacitor and filter inductance, export DC voltage.
5. a kind of electric precipitation pulse power according to claim 2, it is characterized in that: described pulse transformer circuit also includes pulse transformer, the once survey winding of described pulse transformer is in series with storage capacitor and IGBT switch successively, on described IGBT switch, reverse parallel connection has diode, is connected after the secondary side winding serial coupling capacitor of described pulse transformer with isolating switch.
6. a kind of electric precipitation pulse power according to claim 2, it is characterized in that: described DSP embedded Control circuit also includes photoelectric isolating circuit, described DSP control core unit is connected with DC power supply circuit and pulse transformer circuit respectively by photoelectric isolating circuit.
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| CN201520200149.4U CN204620218U (en) | 2015-04-03 | 2015-04-03 | A kind of electric precipitation pulse power |
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| CN201520200149.4U CN204620218U (en) | 2015-04-03 | 2015-04-03 | A kind of electric precipitation pulse power |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166548A (en) * | 2017-05-12 | 2017-09-15 | 华南理工大学 | Based on wireless intelligent compound air purifier system and its control method |
| WO2023025179A1 (en) * | 2021-08-27 | 2023-03-02 | 北京北方华创微电子装备有限公司 | Power source assembly, and plasma immersion ion implantation device and method for using same |
-
2015
- 2015-04-03 CN CN201520200149.4U patent/CN204620218U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166548A (en) * | 2017-05-12 | 2017-09-15 | 华南理工大学 | Based on wireless intelligent compound air purifier system and its control method |
| CN107166548B (en) * | 2017-05-12 | 2022-11-18 | 华南理工大学 | Wireless-based intelligent combined type air purifier system and control method thereof |
| WO2023025179A1 (en) * | 2021-08-27 | 2023-03-02 | 北京北方华创微电子装备有限公司 | Power source assembly, and plasma immersion ion implantation device and method for using same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 321031 Zhejiang province Jinhua City Jindong Cao Zhai Zhen West Industrial Park, building 3, 1, 2 Patentee after: ZHEJIANG DOWAY ADVANCED TECHNOLOGY CO., LTD. Address before: 321031 Zhejiang province Jinhua City Jindong Cao Zhai Zhen West Industrial Park, building 3, /1, 2 Patentee before: Jinhua Dawei Electronic Technology Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pulsed power supply for electric precipitation Effective date of registration: 20191016 Granted publication date: 20150909 Pledgee: China Co truction Bank Corp Jinhua branch Pledgor: ZHEJIANG DOWAY ADVANCED TECHNOLOGY CO., LTD. Registration number: Y2019330000116 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201229 Granted publication date: 20150909 Pledgee: China Co. truction Bank Corp Jinhua branch Pledgor: ZHEJIANG DOWAY ADVANCED TECHNOLOGY Co.,Ltd. Registration number: Y2019330000116 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A pulse power supply for electrostatic precipitator Effective date of registration: 20201231 Granted publication date: 20150909 Pledgee: China Co. truction Bank Corp Jinhua branch Pledgor: ZHEJIANG DOWAY ADVANCED TECHNOLOGY Co.,Ltd. Registration number: Y2020330001357 |
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