Rotary jet flow blowing-suction type vortex range hood

Abstract

The invention belongs to the technical field of rotary jet flow blowing-suction type vortex range hoods, and particularly relates to a rotary jet flow blowing-suction type vortex range hood. The rangehood is provided with an annular groove sealing rotary disc driven by a rotary disc driving motor, so that a rotary jet flow upper cover and a rotary jet flow lower cover which are fixedly mounted onthe annular groove sealing rotary disc rotate together; and inlet air is increased in pressure through an air inlet centrifugal fan and discharged into an air inlet flow-equalizing and pressure-equalizing cylinder to be separately guided into a slit jet nozzles to be ejected in the longitudinal lower direction, and guided into a smoke guide jet nozzles to be horizontally ejected in the axis direction, and the tornado air vortex field effect is generated jointly in cooperation with rotary air suction cyclone of a smoke exhaust centrifugal fan in the center. The range hood is capable of rapidlygathering and exhausting lampblack generated in the cooking process, high in suction rate, low in working noise and capable of greatly purifying the kitchen environment, and belongs to the field of kitchen range hood manufacturing.

Description

technical field [0001] The invention relates to a range hood, in particular to a swirling jet blowing type vortex range hood. Background technique [0002] For the family and catering industry, at present, the range hood commonly installed in the kitchen is a kind of kitchen appliance that can quickly extract the oil fume generated during the cooking process to the outside, and purify the kitchen environment. machine and side suction range hood. The oil suction process of the traditional range hood is a point-sink type suction, and the negative pressure suction airflow is used as the control airflow. The speed on the axis of the suction port decays extremely quickly as the distance from the control point increases, and the effective suction distance And the suction range is small, resulting in a relatively low oil fume suction rate. Existing top-suction and side-suction range hoods have the following unresolved shortcomings: [0003] 1. The oil fume absorption rate of the...

AI Technical Summary

Problems solved by technology

[0003] 1. The oil fume absorption rate of the negative pressure suction range hood in the form of point sink suction is low, generally only 60%-80%, and the undischarged oil fume pollutants will pollute the indoor environment and endanger the use physical health

[0004] 2. Generally, the power of the centrifugal fan of the range hood is between 160-260W, which consumes a lot of power. However, increasing the power of the centrifugal fan to increase the air volume to achieve a better range hood effect will lead to higher energy consumption and more noise

[0005] 3. Because the traditional range hood uses a high-power centrifugal fan, the wind noise is relatively large during operation, especially after a period of use, the uneven adhesion of oil stains on the centrifugal fan blades causes the dynamic balance of the centrifugal fan blades to deteriorate , resulting in greater noise and vibration of the range hood

[0006] 4. The top-suction range hood is large in size due to the need for a large range of smoke collection, and has square edges and corners. Users are prone to bump their heads when cooking.

In order to avoid bumping, when the range hood is installed at a higher position, it is easy to cause the phenomenon of oil fume dispersion, and the oil fume absorption rate is lower

[0007] 5. If the side-suction range hood is too close to the gas stove, it will suck the flame of the gas stove and cause part of the heat generated by the gas combustion to be sucked away by the range hood, wasting gas

Moreover, once the flame is inhaled, there is a potential safety hazard that the oil in the range hood will be ignited and cause a fire.

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