Ignition detection circuit of lampblack purification device and control method of ignition detection circuit

Abstract

An ignition detection circuit of a lampblack purification device comprises a control unit, a drive unit, a main vibration loop, a high-voltage transformer and a high-voltage static output loop, and is characterized in that the input end of an ignition protection unit is connected with a second primary input coil of the high-voltage transformer, a continuous pulse ignition detection end and an intermittent pulse ignition detection end of the ignition protection unit are respectively connected with a feedback end of the control unit, the control output end of the control unit is connected with the input end of the drive unit, the output end of the drive unit is connected with the input end of the main vibration loop, the output end of the main vibration loop is connected with a first primary input coil of the high-voltage transformer, and the output end of the high-voltage transformer is connected with the input end of the high-voltage static output loop. A group of primary input coils are additionally arranged in the high-voltage transformer, an ignition protection unit circuit is led in, the aim of accurately judging ignition types and ignition frequency is achieved by detecting voltage change values generated through continuous ignition and intermittent ignition, and fire hazards caused by improper ignition are effectively avoided.

Description

technical field [0001] The invention relates to an oil fume purification device, in particular to an ignition detection circuit of a kitchen high-voltage electrostatic oil fume removal purification device and a control method for the ignition detection circuit. Background technique [0002] A large amount of high-concentration oily fumes generated during food cooking and processing will float over the city for a long time after being directly discharged, directly threatening the health of urban residents. In order to reduce the pollution of cooking oil fume to the environment, kitchen range hoods are usually equipped with oil fume purifiers. In the prior art, there are generally the following methods for oil fume purification: mechanical oil fume purifier, water mist spray type oil fume purifier, and electrostatic oil fume purifier. Among them, electrostatic technology has higher purification efficiency , can remove most of the oil fume, and the electrostatic oil fume purif...

AI Technical Summary

Problems solved by technology

[0004] Usually, there are two metal discharge ends arranged inside the high-voltage electrostatic purification device. When the distance between the two discharge ends becomes smaller for some reason or is filled with other media, it is very easy for the electrostatic device to continue to spark, resulting in a hidden danger of fire.

In addition, when the two discharge end faces are covered by impurities, intermittent frequent ignition is also prone to occur. The impurities on the discharge end faces are easily ignited and burned after being heated for many times, and there is also a fire hazard.

Images