A special high-voltage power supply for electrostatic oil fume purification equipment based on voltage doubler circuit technology

Abstract

The invention provides a high-voltage power source special for electrostatic lampblack purification treatment equipment based on a voltage doubling circuit technology. The high-voltage power source comprises a filtering rectification circuit, a PFM chopping circuit, a PFM control circuit, a high-voltage transformer circuit, a voltage doubling circuit, a high-voltage sampling circuit, a current sampling circuit, a high-voltage closed-loop control circuit, a discharge over-current protection circuit, an overvoltage protection circuit and a user feedback interface circuit. According to the high-voltage power source special for the electrostatic lampblack purification treatment equipment, the special high-voltage power source can be used for carrying out closed-loop processing on output high voltage, meanwhile, the electrostatic lampblack purification treatment equipment is easy to discharge, the characteristic that flammable lampblack is accumulated easily, and sensitive protection can becarried out; and the problem that the output high-voltage proportion change of an ionization electrode and a collection electrode is large is improved, so that the error of the proportion is lower than 1%, and the treatment effect of the electrostatic lampblack purification treatment equipment is continuous and stable.

Description

technical field [0001] The invention belongs to the field of high-voltage technology, and in particular relates to a special high-voltage power supply for electrostatic oil fume purification equipment. Background technique [0002] Electrostatic oil fume purification equipment is widely used in oil fume purification treatment, such as oil fume treatment from restaurants and barbecues, factory waste gas treatment, etc. The high-voltage power supply used in the existing electrostatic oil fume purification equipment is an open-loop output, and the output high voltage cannot be controlled. The high-voltage output is unstable, and the electrostatic oil fume purification treatment effect is unstable due to voltage changes, which affects the treatment effect. Secondly, because the high voltage is controlled in an open loop, the electric field of the electrostatic precipitator is easy to breakdown and discharge, and there is a great potential safety hazard. The existing high-voltag...

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Problems solved by technology

Although the intelligent high-voltage power supply for kitchen fume purifiers provided by the invention can greatly improve the service life of the high-voltage power supply, the high-voltage is an open-loop output, which not only cannot control the output high voltage, but also has unstable high-voltage output, which affects the processing effect. The high voltage is controlled in an open loop, and the electric field of the electrostatic precipitator is easy to breakdown and discharge, which poses a great safety hazard

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