Control method and system of zero-spark high-pressure electrostatic precipitation power-supply

An electrostatic dust removal and control system technology, applied in the direction of power supply technology, electrostatic separation, etc., can solve the problems of dust removal voltage adjustment, dust removal efficiency drop, electrode damage, etc., and achieve the effect of increasing detection speed, realizing real-time detection, and improving dust removal efficiency

Inactive Publication Date: 2009-05-06
HEBEI UNIV OF TECH
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The spark tracking control has the following problems: (1) Due to the existence of sparks in the dust removal electric field, the dust removal efficiency is greatly reduced when the sparks appear, resulting in a decrease in the total dust removal efficiency;
[0007] (2) Due to the existence of sparks in the dust removal electric field, certain damages are caused to the electrodes;
[0008] (3) In order to increase the tracking speed of the dust removal voltage, the spark rate must be increased, but increasing the spark rate will cause a decrease in the dust removal efficiency and damage to the electrodes, so a contradiction arises;
[0009] (4) When the flue gas composition, concentration, humidity, temperature and other parameters change, the dust removal voltage cannot be adjusted quickly
This kind of control has the following problems: Since the changes in the flue gas composition, concentration, humidity, temperature and other parameters will cause the change of the dielectric breakdown voltage, so only the detection of the flue gas inlet temperature cannot obtain the accurate optimal setting value of the dust removal voltage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control method and system of zero-spark high-pressure electrostatic precipitation power-supply
  • Control method and system of zero-spark high-pressure electrostatic precipitation power-supply
  • Control method and system of zero-spark high-pressure electrostatic precipitation power-supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Further describe the present invention below in conjunction with embodiment and accompanying drawing thereof, but it does not limit the claims of the present invention.

[0039] As shown in the figure, 1 is the dust removal electrode, 2 is the additional detection electrode, 3 is the high-frequency transformer, 4 is the inductor, 5 is the high-voltage silicon stack of the dust removal power supply, 6 is the high-frequency transformer, 7 is the inductor, and 8 is the spark voltage generation High voltage silicon stack of circuit cells.

[0040] The dust removal voltage circuit unit and the spark voltage detection unit constitute a complete electrostatic dust removal power supply system.

[0041] The specific composition of the microcomputer controller is: microprocessor (CPU).

[0042] An analog-to-digital conversion unit (AD) is used to convert the collected analog voltage of the additional electrode into a digital value for processing by the CPU.

[0043] The digital...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a control method and a control system of zero-spark high-voltage electrostatic dedusting power supply, the system comprises an additional detecting electrode, a spark voltage generating circuit unit, a high-voltage measuring circuit and a microcomputer control unit. Through an additional electrode device that is arranged in a flue gas passage, the detecting electrode is connected with a detecting voltage generating circuit, disruptive critical voltage of the additional electrode is detected, and the critical disruptive voltage of a dedusting electric field is computed by a linear relation. The control method and system of the disruptive critical voltage detection of flue gas medium are characterized by simple structure, quick response speed, zero-spark in the dedusting electric field, and the like.

Description

technical field [0001] The present invention relates to a control method and system for high-voltage electrostatic precipitator power supply, in particular to a control method and system for zero-spark high-voltage electrostatic precipitator power supply, specifically a method for automatically detecting the critical breakdown voltage of the flue gas medium by adding additional sampling electrodes, and The dust removal electric field voltage can be adjusted in real time according to the detection results, and has the characteristics of simple structure, fast response speed, and no spark in the dust removal electric field. Background technique [0002] The basic principle of high-voltage electrostatic precipitator is: the high-voltage electrostatic precipitator is composed of two corona electrodes and dust-collecting electrodes with opposite polarities. When working, a DC high voltage is applied between the corona electrode and the dust collecting electrode to cause corona di...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B03C3/68
Inventor 郝岩彪孙建广吴永俭
Owner HEBEI UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products