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High-voltage power supply of electrostatic dust collector

An electrostatic precipitator, high-voltage power supply technology, applied in electrostatic separation, instruments, electrical components, etc., can solve problems such as pulling down voltage and current, affecting the normal operation of electrostatic precipitators, avoiding sparks, improving quality and technical performance, good adaptability

Active Publication Date: 2012-05-30
张跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the arc discharge of the electrode of the electrostatic precipitator to remove dust, bacteria, and mosquitoes will inevitably lower the voltage and current. If it cannot be automatically adjusted, it will seriously affect the normal operation of the electrostatic precipitator.

Method used

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  • High-voltage power supply of electrostatic dust collector
  • High-voltage power supply of electrostatic dust collector
  • High-voltage power supply of electrostatic dust collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Control principle:

[0016] ●Adopt three levels of constant current and voltage limiting control, and each level of current is cured to a certain value.

[0017] ●The output voltage of each gear can not exceed the maximum voltage limit value, and a built-in potentiometer fine-tunes the maximum voltage limit of the third gear.

[0018] ●The electrostatic power supply automatically realizes the automatic switching of three gears. It automatically drops to 1 gear after 1 second of continuous arcing, and automatically raises to 1 gear if no arcing is detected once in 50 minutes.

[0019] ●When the electrostatic power supply fails to output high voltage and the external power supply is short-circuited, it will report a power failure.

[0020] Specific circuit analysis:

[0021] power supply:

[0022] ● After the switching power supply generates Vcc, it is regulated to 5V by IC1 (78L06), and then the IC on the power supply works. High pressure produces:

[0023] ●Q3, Q4,...

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Abstract

The invention discloses a high-voltage power supply of an electrostatic dust collector, which comprises a switch stabilized voltage power supply, a high-voltage power supply and a current-voltage control circuit. The high-voltage power supply of the electrostatic dust collector is also connected with an automatic regulation module; the automatic regulation module consists of a current sampling circuit, a pulse converting circuit, a logic gate array and an amplifying circuit which are connected in turn; the automatic regulation module detects the magnitude and duration of the current loaded bythe high-voltage power supply; and an output of the automatic regulation module is connected with the current-voltage control circuit and provides different reference voltages for the current-voltagecontrol circuit respectively. The high-voltage power supply of the electrostatic dust collector is controlled by multi-shift constant-current limit voltage, implements multi-shift automatic control for an electrostatic power supply and automatic alarm for power supply failure, and has the advantages of complete function, good adaptability and excellent technical performance.

Description

Technical field: [0001] The invention relates to a power supply device, in particular to a high-voltage power supply for an electrostatic precipitator. Background technique: [0002] The power supply of the existing electrostatic precipitator is generally only a simple high-voltage rectification output circuit, and there is no current and 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. next work. For example, in some humid and rainy places in southern my country, the air insulation resistance is small, and the existing electrostatic precipitator has no current adjustment gear, so the excessive current of the power supply under wet conditions cannot be effectively controlled, which may easily cause equipment burnout and safety. Poor performance. Another example is that in some places with high dust density, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C3/66H02M3/335
CPCB03C3/68
Inventor 张跃
Owner 张跃