Cooking fume drainage structure applied in double-fan exhaust hood and double-fan exhaust hood

Abstract

The invention relates to the field of cooking fume diversion carried out by an exhaust hood, in particular to a cooking fume drainage structure applied in a double-fan exhaust hood and the double-fan exhaust hood. The cooking fume drainage structure is of an integral structure, and comprises a volute tongue and a diversion plate, wherein the volute tongue is located at the first end of an axial direction of the diversion plate, and is provided with a first volute shell installing position; the diversion plate is provided with a second volute shell installing position, and comprises a first fan diversion plate and a second fan diversion plate; both the first fan diversion plate and the second fan diversion plate are curved plates, and are arranged oppositely; and air outlet plate ends of the first fan diversion plate and the second fan diversion plate are intersected to form a herringbone shape. According to the cooking fume drainage structure applied in the double-fan exhaust hood and the double-fan exhaust hood provided by the invention, the diversion plate is formed by the first fan diversion plate and the second fan diversion plate which are the curved plates, form the herringbone shape, and face to a first volute shell and a second volute shell of the volute shell, cooking fume passes through the diversion plate, and the curved plate structure of the diversion plate can be beneficial to reducing the impact backflow of an airflow at an air outlet part, reducing the vortex phenomenon, and reducing the noise of fluid impact.

Description

technical field [0001] The invention relates to the field of diversion of oil smoke by a hood, in particular to a oil fume drainage structure applied to a double-fan range hood and the double-fan range hood. Background technique [0002] At present, range hoods generally include: single-motor range hoods and dual-motor range hoods. In the single-motor range hood, there are certain differences in the range hood effects on both sides, and good range hood effects cannot be achieved at the same time. The existence of the dual-motor structure will reduce the difference in the effect of the oil suction on both sides, and have a good oil absorption effect on both sides. In the range hood products, in order to pursue a good range hood effect, the range hood will adopt a double fan structure. figure 1 with figure 2 The design is the existing double-fan volute structure on the market. This range hood adopts a middle plate on the middle surface of the outlet of the left volute 01 a...

AI Technical Summary

Problems solved by technology

In the existing technical solution, the middle plate adopts the direct-facing partition 03. When the gas is discharged from the volute, there will be a backflow after the airflow hits the direct-facing partition, and the backflow will counteract the subsequent airflow. When the flow velocity increases to a certain value, the backflow and the follow-up airflow will form a strong vortex, resulting in more obvious disturbance of the air outlet, resulting in more loss of air volume and greater noise.

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