Novel cyclone type high-efficiency energy-saving environment-friendly range hood

Abstract

The invention discloses a novel cyclone type high-efficiency energy-saving environment-friendly range hood. The range hood has the advantages of high efficiency, energy conservation, cleanness, environmental protection, economy, durability, easy processing, non-cleaning of impellers, realization of comprehensive optimization of indoor environment, environment inside the hood and outdoor environment further and the like. A structure of the novel cyclone type high-efficient energy-saving environment-friendly range hood comprises a draught fan, an oil filter, a cover shell, a lampblack cover, a jacklight and a multiposition keyswitch; a shell of the draught fan is a conical or cylindrical three-bin joint device with an air inlet and an air outlet; and the lower part of the device is provided with a lampblack filter.

Description

technical field [0001] The invention relates to a novel swirl type high-efficiency, energy-saving and environment-friendly range hood, which belongs to the technical field of indoor air purification. technical background [0002] Since July 1987, Shanghai Yandeng Factory took the range hood produced in Taiwan as a sample and successfully imitated the first range hood in the mainland. In order to achieve rapid development, product quality has also been continuously improved. Range hoods have been developed in my country for nearly 30 years, and there are hundreds of brands, large and small. Among them, Boss, Shuaikang, Fotile, etc. are active in the front line. In recent years, range hoods of foreign brands have gradually Influx into our market. These brands cover high, medium and low levels and products at all price points. In terms of style, it can be divided into two categories: top suction type and side suction type. The two types of products also have appearance design...

AI Technical Summary

Problems solved by technology

[0003] 1. Severe oil accumulation: all the oil smoke must be discharged outside through the impeller, which will cause uneven oil accumulation on the fan impeller, and the impeller will gradually lose its dynamic balance when rotating. Not only will the mechanical noise increase, but the smoking effect will also become worse and worse.

[0004] 2. Inefficient energy consumption: all the smoke must be discharged outside through the impeller.

When the impeller does work on the oil fume, the oil fume must contact the high-speed rotating impeller and flow over its surface, which naturally brings about the problem of collision and friction between the oil fume and the impeller and the inner wall of the casing. Energy, and will produce greater noise and wear, resulting in low fan efficiency, high energy consumption, loud noise, and short life

[0005] 3. Difficulty in cleaning: The impellers of the main range hood products on the market are generally multi-blade (50-52 pieces) squirrel-cage structure. The main feature of this structure is that the distance between the blades is relatively narrow. Not only directly affects the effect of oil fume suction and exhaust, but also difficult to clean

In addition, the blades are thin, low in strength, and easily deformed by scrubbing vigorously. Practice has proved that the service life of the current range hood will be greatly shortened after being disassembled and washed.

[0006] 4. Poor environmental protection: The main function of the range hood is not only to keep the kitchen clean, but also to ensure that the fumes discharged outdoors meet the national emission standards

All the smoke must be discharged outside through the impeller. When there is a lot of smoke, some of the smoke that cannot be sucked and exhausted by the fan in time will spread into the room and cause indoor environmental pollution.

In addition, single-layer oil fume filters are commonly used for oil fume separation at present, and the separation degree of oil fume is low, so that the purification rate of oil fume discharged outdoors is low, resulting in different degrees of outdoor environmental pollution

[0007] In order to solve the above problems, many researchers at home and abroad have carried out long-term and arduous research, and have successively adopted a series of measures such as improving the machine shape structure, wind wheel surface treatment, adding purifiers, installing oil fume hoods, using filters, and separating oil fumes. However, since the traditional theoretical framework that all fumes are sucked and exhausted through the impeller has never been jumped out, it can only treat the symptoms but not the root cause. Therefore, although some performances have been improved and improved, no breakthroughs have been made.

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