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Anonymous users2024-01-24What is the ratio of smoke exhaust and fresh air in the kitchen? Kiss! Hello, I'm glad to answer for you <> pro ratio 1:
To 1: The indoor atmospheric pressure in the kitchen is about greater than 1 atmosphere, and the person breathes more comfortably, so the air supply should be greater than the exhaust air, so the ratio of fresh air supply volume to exhaust air volume is more appropriate, (the indoor is not closed). 1. The overall exhaust air volume is 40-60 times per hour according to the kitchen space.
For example, the total area of the kitchen is 160 square meters, and the height is 3 meters. The ventilation volume required is 160X3X60=28800m3 Locally, according to the windward side of the kitchen exhaust hood (the circumference of the exhaust hood minus the length of the wall against the wall), the wind speed per second is about meters. For example, the circumference of the kitchen hood is 25 meters, of which the length of the excavation wall is 10 meters.
The ventilation volume is required to be 3600X (25-10) two: calculate the static pressure required by the fan according to the situation of the pipeline: 1. Determine the cross-sectional area of the air duct according to the air volume and wind speed (wind speed of about 10-15 meters per second).
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