Novel wet type oily fume purifier and application thereof

Abstract

The present invention relates to a novel wet type oily fume purifier. The purifier comprises a housing, a circulation water tank, an oily fume inlet port, an oily fume discharge port, an air exhaust fan, a rectification section, a purification section, a spraying section and a demisting section. The top of the housing is provided with the oily fume discharge port while being in communication with the interior of the housing. The air exhaust fan is connected with the oily fume discharge port. The air exhaust fan provides the negative-pressure power for the oily fume discharge port. The bottom of the housing is provided with the circulation water tank. Above the circulation water tank, the housing is provided with the oily fume inlet port in communication with the interior of the housing. Between the oily fume discharge port and the oily fume inlet port, the rectification section, the purification section, the spraying section and the demisting section are sequentially and coaxially arranged from bottom to top inside the housing. The purification section, the spraying section and the demisting section are arranged at intervals. According to the invention, the removal efficiency of the purifier for oily fume particles with the diameters thereof larger than 2 mum is up to over 90%. Therefore, the purifier is high in oily fume purification efficiency and low in cost. The defect in the prior art that the filter section of a conventional filtration type purifier is frequently cleaned to be easily blocked in the prior art can be overcome.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, in particular to a novel wet-process oil fume purifier and its application. Background technique [0002] With the development of the national economy and the improvement of people's living standards, the catering industry has developed vigorously, and cooking fume pollution has become the third largest source of air pollution in cities after industrial pollution and traffic pollution. Studies have shown that cooking fume emitted by the catering industry has become one of the important sources of organic matter in urban particulate matter; cooking fume contains a variety of mutagenic and carcinogenic substances, which are closely related to the occurrence of respiratory diseases such as lung cancer, so the problem of cooking fume pollution has become an urgent problem to be solved . [0003] Most of the existing oil fume treatment technologies adopt mechanical, filter, electrost...

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Problems solved by technology

[0003] Most of the existing oil fume treatment technologies adopt mechanical, filter, electrostatic, or a combination of them. Mechanical oil fume purifiers are only effective for large particles of oil droplets, because small particles cannot be retained and follow the smoke. The exhaust gas is discharged into the atmosphere, and the purification efficiency of oil fume is low. After purification, the oil fume can hardly meet the emission standard after purification.

With the prolongation of the operation time, the filter oil fume purifier has the problem that the filter material is easy to block, resulting in an increase in pressure drop, and the filter material needs to be replaced or cleaned regularly, which is troublesome to maintain, high in operating costs, and the fan power is large, which is prone to noise pollution

The electrostatic type has the disadvantage that viscous oil droplets are easy to adhere to the discharge electrode and the dust collection electrode, which leads to a decrease in the purification efficiency of the electrostatic oil fume purification equipment after a period of operation, especially for the poor fluidity of the collected oil mist. more prominent

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