People who like to eat light meals do not need to install a large suction range hood in the kitchen. If it is light like a salad, then of course it is not needed; but like light Chinese food, like tomato scrambled eggs, my answer It is necessary, because Chinese food is to be fried, of course, the fumes are indispensable.
Therefore, the key to the problem is: How many suction hoods should you choose?
How much suction can't be expressed by numbers, because suction is an unmeasurable indicator, even without a unit of measurement, but the two factors that determine the size of the suction can be expressed by numbers: one is the air volume; the other is the wind pressure.
1, the air volume of the hood
The amount of air determines the amount of smoke exhausted, and the larger the amount of wind, the more smoke that can be discharged. At present, the air volume of the range hood sold in the market is, from small to large, less than or equal to 10 cubic meters / min, 11-14 cubic meters / min, 15-17 cubic meters / min, 18-20 cubic meters / min greater than or equal to There are five kinds of 21 cubic meters / min.
Generally speaking, less than 14 cubic meters per minute is considered to be too small (excluding 14 cubic meters). If the air volume is too small, the exhaust fumes are slow and unclean, and the situation of the monks may occur from time to time. If it is too large, it will take away oxygen, and the flame will become smaller. The cooking will naturally be unstable; the air volume will increase the noise and affect the comfort of cooking; if it is more than 20 cubic meters, the air volume will be too large.
The latest national standard, the air volume value is greater than or equal to 10 cubic meters / min, and my national public smoke pipe design can generally accommodate 15 cubic meters / min of air exhaust.
Therefore, like a light Chinese meal, it is enough to choose a range hood with a wind volume of 15-17 cubic meters / min.
2. Wind pressure of the range hood
The wind pressure affects the speed of smoke exhaust. The higher the wind pressure, the faster the speed of smoke exhaustion and the better the effect of exhausting smoke.
The value specified by the state is 80Pa, but the wind pressure of the range hood on the market is mostly at 300Pa. In other words, under normal circumstances, the range hood of 300Pa wind pressure can meet the needs of Chinese food.
If the floor is high or the exhaust pipe is long, consider choosing a range hood with a larger wind pressure.
Summary: Like the light Chinese food, it is also steamed, boiled, stewed, and fried. This means that there will be a large amount of soot. If the frequency of cooking is high, it is necessary to choose a suction hood with a large suction.
As for the suction force: the air volume is 15-17 cubic meters / min;
The wind pressure is around 300Pa.
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