Electrostatic cooking fume purifying device and extractor hood provided with same

Abstract

The invention relates to an electrostatic cooking fume purifying device and an extractor hood provided with the same. The electrostatic cooking fume purifying device comprises a shell and a dust collecting region which is located in the shell. The electrostatic cooking fume purifying device is characterized in that the dust collecting region comprises at least two second electrode plates which arearranged in parallel in a spaced mode, and the interval between every two adjacent second electrode plates is equal; and the electrostatic cooking fume purifying device further comprises an adjustingstructure capable of adjusting the interval between every two adjacent second electrode plates. When the concentration of cooking fumes is too large, the intervals between the second electrode platesare decreased through the adjusting structure, the field intensity is increased under the same voltage, and thus the capacity to adsorb cooking fume particles is improved; and when the concentrationof cooking fumes is relatively small, the intervals between the second electrode plates can be increased, the field intensity is decreased under the same voltage, and thus on the basis of adsorbing asmall number of cooking fume particles, energy is saved, using cost is reduced, and the cooking fume purifying effect is improved.

Description

technical field [0001] The invention relates to an electrostatic oil fume purification device and a range hood applied with the device. Background technique [0002] In order to reduce the pollution of oil fume to the indoor and outdoor environment, and reduce the rejection of catering enterprises by the public, especially the public around the area, it is necessary to use oil fume purification devices. The oil fume purification devices commonly used in the prior art include: mechanical oil fume purification devices, water mist spray Shower type oil fume purification device and electrostatic oil fume purification device. [0003] Among them, the working principle of the electrostatic oil fume purification device is: use a high-voltage electrostatic field to ionize the gas passing through the electrodes, and then adsorb it on the electrodes to achieve the purpose of purifying the oil fume. Commonly used electrostatic devices are divided into two types: the modular design of ...

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Problems solved by technology

[0004] In the above-mentioned existing electrostatic oil fume purification device, when the oil fume flow rate of the range hood changes, the electric field strength can only be changed by changing the voltage of the dust collecting electrode to adapt to the change in flow rate, thereby improving the efficiency of electrostatic oil fume removal, and changing The voltage of the dust collector requires a high-cost power supply circuit board, resulting in high cost of use; and the general power supply can only realize step-by-step voltage regulation, which will cause energy waste to a certain extent and affect the purification effect

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