Impeller structure of centrifugal lampblack filter

Abstract

The invention relates to an impeller structure of a centrifugal lampblack filter, which comprises a multi-wing type centrifugal impeller body (1) and is characterized by also comprising a meshy side filtering plate (2); and the side filtering plate (2) is externally fixed on the outer periphery of the multi-wing type centrifugal impeller body (1) so as to be capable of rotating at high speed together with the multi-wing type centrifugal impeller body (1). The impeller structure only increases the meshy side filtering plate (2) based on the original structure of the multi-wing type centrifugal impeller body (1); therefore, the structure and the preparing technique thereof are simple and reasonable and the cost is low, thus being convenient for popularization and application in large batch; moreover, the impeller body can not exert larger blowing force on the side filtering plate or a front filtering plate and the noise is low; the purifying effect of the impeller structure is higher by more than 100 percent of the traditional method through actual detection, which means that the purifying rate exceeds 60 percent; the purifying effect is good; moreover, the effect of the impeller structure to the air amount does not exceed 4 percent through actual detection and the effect of the of the impeller structure to the air pressure does not exceed 2 percent.

Description

technical field [0001] The invention relates to a centrifugal oil fume filter device for range hoods, in particular to an impeller structure of the centrifugal oil fume filter device. Background technique [0002] The oil fume filter device of the household range hood is installed with a filter at the air inlet of the centrifugal fan. The centrifugal force of the impeller on the fan is used to separate the oil fume. The air with oil fume is sucked by the negative pressure generated by the high-speed rotating fan, and the air touches the filter and After the impeller condenses, the oil fume is separated and finally drops into the oil receiving box in the oil fume filter device. The method has been tested by the environmental protection department, and the purification rate is 20%-30% in the case of a large amount of oil fume. [0003] In order to increase the purification effect, there is a Chinese utility model patent "centrifugal filter oil fume purifier" with patent numbe...

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Problems solved by technology

[0004] The purification effect of the above-mentioned centrifugal filter type oil fume purifier is obviously improved, but most of the parts involved in the whole machine need to be specially equipped with a centrifugal filter wheel on the output shaft, and the centrifugal filter wheel is composed of a mesh wheel frame and a mesh wheel frame It is composed of radially arranged filter wires on the top, so the structure and manufacturing process are complicated, the cost is high, and it cannot be popularized and applied in batches; and after testing, the air volume of the aforementioned centrifugal filter type oil fume purifier loses more than 25% of the whole machine, resulting in oil fume inhalation The capacity is reduced; in addition, during the working process of the aforementioned structure, the wind impeller has a greater blowing force on the centrifugal filter wheel, so the noise increases by more than 2dB; the aforementioned centrifugal filter type oil fume purifier is inconvenient to clean. Centrifugal filter wheel, as well as the detachable and washable wind impeller; since the centrifugal filter wheel should be installed on the output shaft of the motor before the wind impeller, it is necessary to install the output shaft of the motor and the centrifugal filter wheel on the output shaft The remote end, so the output shaft of the motor is subjected to a large force, which is easy to cause the output shaft of the motor to vibrate during the working process, which is easy to generate noise and damage the motor

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