What type of fan is generally used for kitchen air supplementation, and what kind of form

In the past, kitchen fresh fans generally used wind cabinets and the like, but now most of them have switched to environmentally friendly air conditioners as fresh fans.

Mainly because:

1. The wind cabinet is relatively bulky and not easy to install.

2. The power of the wind cabinet is generally large, and the power consumption is also relatively large.

3. The air volume of environmental protection air conditioner is large, but the power is low, that is, the energy consumption is low and the electricity cost is low.

3. Moreover, the environmentally friendly air conditioner not only sends fresh air, but also cools the cook, and is a filtered cool breeze, clean and cool.

Among them, Jiafeng environmental protection air conditioner is also well-known in the industry as a kitchen fresh fan, and its stable and effective characteristics are gradually replacing traditional cabinet machines.

In the kitchen ventilation, a certain amount of fresh air should be supplemented, and the air supply volume should be considered according to the exhaust air volume of 80 -90.

The negative pressure value in the kitchen is not good for more than 5Pa, because the negative pressure is too large, the furnace will be backwinded. Therefore, it is possible to regulate the speed of both the blower and the exhaust fan.

30 of the make-up air volume can be used as the post air supply, and the air supply outlet is directly and evenly arranged above the front side of the exhaust hood.

The kitchen air supply can directly use the outdoor fresh air, and only the coarse filter is set. In addition, in order to improve the working environment of cooking staff, it is advisable to install local or total cooling devices according to conditions. The relationship between the heat emitted by kitchen appliances and the cooling load of air conditioning can be calculated using the following formula:

When the heat source of the stove is gas:

qc=qeF1F2≈。

qc Kitchen air conditioning cooling load, kW;

qe Heat dissipation of kitchen equipment, kW;

F1 Simultaneous use coefficient of the device, take;

F2 The proportion of radiant heat from the surface in the input power of the device, which;

F3 Exhaust air heat exhaust coefficient, taken.

The heat source of the stove is the use of electricity and steam

In order to avoid the smell from the kitchen to the dining room, 60 percent of the air supply can be fed into the dining room, and then from the dining room to the kitchen. In view of the large amount of ventilation in the kitchen, such a large amount of make-up air flows through the dining room to the kitchen, which is not advisable in terms of energy saving and duct arrangement.