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WO2009079900A1 - Alimentation électrique haute tension pour un dispositif de précipitation statique - Google Patents

Alimentation électrique haute tension pour un dispositif de précipitation statique Download PDF

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Publication number
WO2009079900A1
WO2009079900A1 PCT/CN2008/000703 CN2008000703W WO2009079900A1 WO 2009079900 A1 WO2009079900 A1 WO 2009079900A1 CN 2008000703 W CN2008000703 W CN 2008000703W WO 2009079900 A1 WO2009079900 A1 WO 2009079900A1
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WO
WIPO (PCT)
Prior art keywords
voltage
power supply
circuit
current
voltage power
Prior art date
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Ceased
Application number
PCT/CN2008/000703
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English (en)
Chinese (zh)
Inventor
Yue Zhang
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2009079900A1 publication Critical patent/WO2009079900A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/66—Applications of electricity supply techniques
    • B03C3/68—Control systems therefor

Definitions

  • the invention relates to a power supply device, in particular to an electrostatic precipitator high voltage power supply.
  • the existing electrostatic precipitator has a power supply of only a simple high-voltage rectification output circuit, and no current-voltage automatic adjustment design, which makes the electrostatic precipitator unable to adapt to different regions, different climates, different environments, different humidity, and different working conditions.
  • Work under For example, in some humid and rainy places in the south of China, the air insulation resistance is small, and the existing electrostatic precipitator has no current regulation gear. Therefore, the current is too large to be effectively controlled under humid conditions, which may cause equipment to burn and be safe. Poor performance.
  • the electrodes and the electric board are covered with thick dust. The electric field of the attached objects on these electrodes is easily broken down, which also affects the service life and personal safety of the equipment.
  • the electrostatic precipitator In another dry and low temperature area, if the electrostatic precipitator is required to achieve the desired effect, it is necessary to increase the voltage or increase the current. In addition, the electrode arc discharge of the electrostatic precipitator removes dust, sterilizes and removes mosquitoes, which inevitably lowers the voltage and current. If it cannot be automatically adjusted, it will seriously affect the normal operation of the electrostatic precipitator. Therefore, the automatic adjustment of the current and voltage of the power supply is critical to the service life and technical performance of the electrostatic precipitator.
  • the technical problem to be solved by the present invention is: solving the problems existing in the above prior art, and providing a condition for adapting to different regions, different climates, different environments, different working conditions, and adapting to arc discharge, dust removal, sterilization, and mosquito removal. Automatic adjustment of current and voltage, stable operation, safe and reliable, long service life, and good technical performance.
  • the electrostatic precipitator automatically adjusts the high voltage power supply.
  • the technical solution adopted by the invention is: the high-voltage power source of the electrostatic precipitator, including a switching power supply, a high-voltage power supply, a current-voltage control circuit, the invention is also connected with an automatic adjustment module, and the automatic adjustment module detects the load current of the high-voltage power supply and continues Time, conversion circuit, logic After the gate array and the amplifier are connected, the current and voltage control circuits of the high voltage power supply respectively provide a reference voltage, thereby adjusting the control switching power supply and the high voltage power supply.
  • the high voltage power supply is also connected with a fault protection circuit.
  • the switching regulator power supply supplies the working power of the full circuit of the high voltage power supply
  • the high voltage power supply includes an oscillating circuit, a transformer boosting circuit, a high voltage rectifying circuit
  • the current voltage control circuit includes a current voltage detecting sampling circuit, a comparison circuit, and an output connection switch.
  • the power supply voltage feedback terminal adjusts the Vcc stable voltage and current.
  • the automatic adjustment module is composed of a current sampling circuit, a pulse conversion circuit, a logic gate array, and an amplification circuit which are sequentially connected.
  • a voltage dividing circuit is composed of a resistor and an adjustable potentiometer, and the adjustable potentiometer is a limit voltage component.
  • the current control circuit includes a comparison circuit, and one input end of the comparison circuit is connected to the current detection sampling circuit, and the other input end of the comparison circuit is a reference voltage terminal, and the output end of the automatic adjustment module is connected, and the output end of the comparison circuit is connected with feedback. To the voltage feedback terminal of the switching power supply.
  • the voltage control circuit includes a comparison circuit, one input terminal of the comparison circuit is connected to the voltage detection circuit, and the other input terminal is a reference voltage terminal, and is connected to the output end of the automatic adjustment module, and the output end of the comparison circuit is fed back to the voltage of the switching power supply. Feedback side,
  • a fault protection circuit is further connected between the voltage detecting circuit and the oscillating circuit, and the fault protection circuit includes a comparison circuit, a voltage feedback circuit, a flip circuit, a switch circuit, a fault alarm circuit, and an input of the comparison circuit.
  • the terminal is connected to the voltage detecting circuit, and the other input terminal of the comparing circuit is connected to the reference voltage, and the comparison circuit outputs the passing voltage.
  • the feedback circuit, the flip circuit, the switch circuit, and the operating power of the oscillating circuit are connected and controlled.
  • the fault alarm circuit is controlled by the output of the flip circuit and the switch circuit.
  • the invention not only designs a constant voltage control circuit and a constant current control circuit, but also has a maximum voltage limiting circuit and a fault protection circuit, and has complete functions, in particular, an automatic adjustment control circuit for the high voltage power supply of the automatic adjustment module is also designed, which is
  • the technical performance of the whole machine is greatly improved, and the electrostatic precipitator can adapt to various regions, different climates, different environments, different seasons, different humidity, different working conditions, and the power supply of the electrostatic precipitator is always in the best working condition.
  • the electrostatic precipitator electrode is always in the optimal voltage and current parameters, and can be automatically adjusted in multiple gears to avoid electric sparks, short circuit of power supply, burning equipment due to too much electric field and dust, and burnt equipment. For people, It also has a security protection.
  • the invention Especially for high-voltage electrode arcing, dust removal, sterilization, mosquito removal, it can automatically adjust the current and voltage, so that the electrostatic precipitator high voltage power supply is always in the best technical performance. Therefore, the invention has novel concept, reasonable design, complete functions, good adaptability, stable operation, safety and reliability, and greatly improves the quality and technical performance of the electrostatic precipitator.
  • the switching power supply generates Vcc and is regulated by IC1 (78L06) to 5V and then supplied to the power supply.
  • HV 1-3 and 4-5 form an oscillating circuit. After HV 6-7 generates high voltage, it is rectified by D8 and outputs 5- 6KV high voltage to provide dust removal voltage to the precipitator.
  • the voltage divider circuit consists of R6, R7 and R42.
  • R42 is the adjustable potentiometer to adjust the maximum voltage.
  • the detected voltage is sent to P2 of comparator IC3.
  • the voltage of pin 2 of IC3 is compared with the reference voltage of pin 3 of IC3.
  • P1 is fed back to the b pole of Q5 to control the on and off of Q5.
  • the voltage divider circuit consists of R6, R 7 and R42.
  • R42 is an adjustable potentiometer to limit the maximum voltage.
  • the detected voltage is sent to P5 of comparator IC4, IC4 is LM358, and the reference voltage of P6.
  • Constant current control :
  • the current is converted to voltage by R 32 and R 33, and the voltage on R33 is input to P2 of IC4 via R34, compared with P3 and output to P5 of IC3 via P1.
  • the voltage is regulated by P7.
  • the voltage feedback end fed back to the switching power supply adjusts the Vcc steady current, and the negative feedback is realized by the resistor R35 to achieve stable operation.
  • the automatic adjustment module operates at a voltage of 9V. It is connected to the high-voltage power supply through CN1A and CN1B.
  • the functions of each pin are: CN1A's P1 is the power ground, P2 is the power supply sampling, P3 is the power supply positive, CN1B's Pl and P2 feet are automatically adjusted.
  • the amplified output of the module provides different reference voltages for the current and voltage control circuits.
  • the automatic adjustment module is connected to CN1 of the high voltage power supply through two connectors. CN1A is 3 bits, input voltage and current signals, and CN1B is 2 bits. The control signal is thus output.
  • the automatic adjustment module detects the magnitude and duration of the load current, and the IC3 converts the current signal into a pulse signal to the logic gate array to realize the logic function. After conversion, the output is amplified by Ql, Q2, Q3, Q4, and passed through CN2. The shift signal is sent to the high voltage power supply, and different reference voltages are respectively provided to IC3 and IC4 to realize automatic adjustment and control of the third gear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electrostatic Separation (AREA)

Abstract

La présente invention concerne une alimentation électrique haute tension pour un dispositif de précipitation statique. Elle comprend un circuit de commutation, un circuit haute tension, un régulateur de tension, et un régulateur de courant. L'alimentation électrique haute tension comporte au minimum deux modes de fonctionnement permettant le réglage de la tension ou du courant. Lorsque la tension ou l'intensité dépasse une valeur prédéfinie, l'alimentation électrique haute tension fait baisser automatiquement un niveau de fonctionnement. Si la tension ou le courant ne dépasse pas une valeur prédéfinie pendant un certain temps, l'alimentation électrique fait monter automatiquement un niveau de fonctionnement.
PCT/CN2008/000703 2007-12-10 2008-04-07 Alimentation électrique haute tension pour un dispositif de précipitation statique Ceased WO2009079900A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710192558 2007-12-10
CN200710192558.4 2007-12-10

Publications (1)

Publication Number Publication Date
WO2009079900A1 true WO2009079900A1 (fr) 2009-07-02

Family

ID=40800705

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Application Number Title Priority Date Filing Date
PCT/CN2008/000703 Ceased WO2009079900A1 (fr) 2007-12-10 2008-04-07 Alimentation électrique haute tension pour un dispositif de précipitation statique

Country Status (2)

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CN (1) CN101653746B (fr)
WO (1) WO2009079900A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103441678B (zh) * 2013-08-21 2015-12-09 中国人民解放军海军工程大学 大容量隔离型直流换流器变pi变频率控制方法
CN106423567B (zh) * 2016-12-05 2018-10-19 福建龙净环保股份有限公司 一种高压电源组控制方法及控制系统
CN107120160B (zh) * 2017-06-01 2024-05-28 山东大学 基于高压静电除尘原理的尾气净化装置及其应用
CN108144747A (zh) * 2017-12-20 2018-06-12 杭州尚斯维雅环境科技有限公司 一种净化空气的方法及空气净化装置
CN111420807B (zh) * 2019-08-06 2022-06-24 义乌工商职业技术学院 静电除尘器快速保护系统控制方法
CN112152193A (zh) * 2020-09-23 2020-12-29 北京瀚悦达科技股份有限公司 一种高压电源二级保护系统
CN115276429A (zh) * 2022-08-17 2022-11-01 深圳市和泰云智能科技有限公司 一种高压电源驱动电路

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB726556A (en) * 1953-02-07 1955-03-23 Dieter Otto Heinrich Improvements relating to voltage control means
US4267502A (en) * 1979-05-23 1981-05-12 Envirotech Corporation Precipitator voltage control system
CN2057371U (zh) * 1989-10-21 1990-05-23 邯郸市环境保护设备总厂 高压静电除尘器电源装置
JPH0857350A (ja) * 1994-08-18 1996-03-05 Fuji Electric Co Ltd 電気集塵器用電源装置の制御方法
CN2431582Y (zh) * 2000-07-06 2001-05-23 陈品森 电压自动分级补偿装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200970551Y (zh) * 2006-09-25 2007-11-07 北京信实德环保科技有限公司 静电除尘器电源控制器及其远程控制系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB726556A (en) * 1953-02-07 1955-03-23 Dieter Otto Heinrich Improvements relating to voltage control means
US4267502A (en) * 1979-05-23 1981-05-12 Envirotech Corporation Precipitator voltage control system
CN2057371U (zh) * 1989-10-21 1990-05-23 邯郸市环境保护设备总厂 高压静电除尘器电源装置
JPH0857350A (ja) * 1994-08-18 1996-03-05 Fuji Electric Co Ltd 電気集塵器用電源装置の制御方法
CN2431582Y (zh) * 2000-07-06 2001-05-23 陈品森 电压自动分级补偿装置

Also Published As

Publication number Publication date
CN101653746B (zh) 2012-05-30
CN101653746A (zh) 2010-02-24

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