Extractor hood adjustable air curtain device based on operating exhaust air volume

Abstract

The invention discloses an extractor hood adjustable air curtain device based on the operating exhaust air volume, and relates to the field of kitchenware. The extractor hood adjustable air curtain device comprises an air volume sensor used for monitoring the exhaust air volume of an extractor hood and an adjustable air curtain device body mounted on the outer side of a chassis of the extractor hood. The real-time exhaust air volume of the extractor hood is monitored through the air volume sensor, meanwhile, a signal is transmitted to an air curtain fan controller and a flow guiding blade controller, according to the relationship between the input exhaust air volume and air curtain outflow parameters, the rotating speed of a fan and the direction of flow guiding blades are adjusted to change the outflow parameters of an air curtain, namely the outflow speed and the outflow angle of the air curtain, and thus the outflow parameters of the air curtain are correspondingly changed under thecondition of changing the exhaust air volume of the extractor hood to achieve the purpose of better achieving the effect of the air curtain. The extractor hood adjustable air curtain device can copewith kitchen cooking lampblack control of the extractor hood under different operating conditions, and has the characteristics of flexibility, simpleness, convenience, high efficiency, energy saving,high practicability and the like.

Description

technical field [0001] The invention relates to the field of kitchen utensils, in particular to an adjustable air curtain device for range hoods based on the operating exhaust air volume. Background technique [0002] The range hood is an important local exhaust equipment in the kitchen, which plays the role of removing cooking fumes in the kitchen and creating a healthy and comfortable indoor living environment. Among them, the collection performance of the range hood is an important index to evaluate the quality of the range hood. There are many ways to improve the collection performance, such as increasing the exhaust air volume of the range hood, changing the form of the suction port of the range hood, or adding side panels, etc. Air curtain range hoods are also a way to improve capture performance. [0003] Compared with the traditional range hood, the air curtain type range hood adds an air curtain on the front side of the range hood, which aims to prevent the cookin...

AI Technical Summary

Problems solved by technology

In the design process of existing air curtain range hoods, the design method of fixed parameters is often adopted, that is, the same air curtain outflow parameters are used for different range hood exhaust volume gears, which cannot adapt to complex cooking Changes in the thermal plume

Research and practice have also proved that the air curtain parameters designed for a certain exhaust air volume will be ineffective or even have the opposite effect when used for other exhaust air volumes, and the air curtain cannot play its due role, which is not conducive to Control of kitchen cooking fume

At the same time, in practical applications, due to the impact of residential flue pressure fluctuations, the exhaust air volume of range hoods often deviates from the rated value under the corresponding gear, and the fixed-parameter air curtain cannot adapt to the complex kitchen environment in the cooking process.

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