Atmospheric and overpressure range hoods
A range hood, overpressure technology, applied in the direction of removing oil fume, lighting and heating equipment, space heating and ventilation, etc., can solve the problem of low air pressure
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[0024] In the first implementation form, the range hood has a casing, a built-in fan, and a ventilation device. The ventilation device is a section of pipeline passing through the wall, and the indoor opening of the pipeline has blades that can be opened and closed by rotation (the blades can also be opened and closed in opposite directions or by shafts).
[0025] Turn on the range hood, and the oil fume under the casing is exhausted through the fan. When the range hood is turned on, the vane at the mouth of the pipe is rotated by wire control, the oil fume is discharged, the indoor air pressure is reduced, and the pipe inhales air from the outside. When the cooker hood is turned off, the fan and the rotating blades are turned off at the same time.
[0026] In the second implementation form, the range hood has a casing, a built-in fan, and a ventilation device. The ventilation device is a section of pipeline through the wall. There is an electric fan in the pipeline that ca...
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