Air curtain range hood
A technology of range hood and air curtain, applied in the field of kitchen air purification equipment, can solve problems such as user discomfort
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Embodiment 1
[0049] Such as Figure 1 to Figure 7 As shown, the air curtain range hood according to this embodiment is characterized by comprising: a first air curtain device 11 for generating a first air curtain 1110 capable of shielding oil smoke; a second air curtain device 12 for A second air curtain 1120 capable of shielding oil smoke and controlling the flow condition of the first air curtain 1110 is generated; at the same height, the flow rate of the second air curtain 1120 is greater than the flow rate of the first air curtain 1110.
[0050] The "same height" refers to a certain height relative to the horizontal plane formed by the top of the air curtain range hood when it is in use. The range of the "height" is the effective distance for shielding the airflow of the air curtain. The effective distance of the air flow of the shielding air curtain refers to: when the air flow intensity / air velocity / air flow of the shielding air curtain is attenuated to 30% to 70% of the corresponding a...
Embodiment 2
[0054] Such as Figure 1 to Figure 7 As shown, the difference between the air curtain range hood in this embodiment and the foregoing embodiment is that the air curtain range hood controls the first air curtain 1110 by controlling the flow condition of the second air curtain 1120 Flow status. Preferably, the first air curtain 1110 and the second air curtain 1120 together constitute at least part of a shielding air curtain for shielding oily smoke.
[0055] Further, the first air curtain 1110 and the second air curtain 1120 in this embodiment are at least parallel to the airflow directions at their respective starting ends. Preferably, the included angle is less than 15°. The flow direction of the first air curtain 1110 and / or the second air curtain 1120 is adjustable at least at the beginning. Preferably, the first air curtain device 11 and / or the second air curtain device 12 includes a deflectable wind deflector provided to match its air outlet, and the first air curtain 1110 ...
Embodiment 3
[0058] Such as Figure 1 to Figure 3 As shown, the difference between the air curtain range hood described in this embodiment and the foregoing embodiment is that the air curtain range hood controls the airflow beginning of the second air curtain 1120 and the first air curtain 1110. The relative position of the beginning of the airflow in the horizontal direction controls the flow condition of the first air curtain 1110.
[0059] Preferably, the air curtain range hood in this embodiment includes a suction port for sucking oil fume, and the air curtain range hood controls the airflow beginning end of the second air curtain 1120 and / or the first air curtain 1110 The relative position between the beginning of the air flow and the suction port controls the flow condition of the first air curtain 1110. For example, in the case where the relative velocity difference between the first wind curtain 1110 and the second wind curtain 1120 is constant at a certain height, the closer the dis...
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Abstract
Description
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Application Information
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