Exhaust fan is the latest type of ventilator, which belongs to axial flow fan. It is called exhaust fan because it is mainly used in negative pressure ventilation and cooling projects.

The negative pressure ventilation and cooling project includes the meaning of ventilation and cooling, and the problems of ventilation and cooling are solved at the same time. Exhaust fan are also used in positive pressure evaporative air cooler, positive pressure air supply, positive pressure blowing and other fields. The exhaust fan has the characteristics of large volume, large air duct, large fan blade diameter, large exhaust air volume, ultra-low energy consumption, low speed and low noise. The exhaust fan is mainly divided into galvanized sheet square exhaust fan and glass fiber reinforced plastic horn-shaped exhaust fan from the structural material.

Exhaust fan products mainly have the following advantages

1. It integrates ventilation, ventilation and cooling.

2. Energy saving: less power consumption, only about 10% to 15% of the traditional air conditioner.

3. Environmental protection: Free of Freon (CFC).

4. Good cooling effect: After the outside air enters the room through the cooling water, the indoor temperature on the side of the cooling water curtain can reach a cooling effect of 5-10 degrees.

5. The return on investment is high, and the investment cost can be recovered within 2 to 3 years.

6. Quickly replace the turbid, hot and odorous air in the room and discharge it to the outside.

7. Effectively control the indoor environment, generate different wind speeds in the room, resulting in a cool wind effect, which makes people feel unusually comfortable and refreshing.

8. Reduce infectious diseases and effectively prevent the large-scale spread of viruses such as sudden influenza. Birds, mosquitoes, and flies are the vectors of infectious diseases. Because the water-type ventilation system is closed under negative pressure, the probability of the spread of the vectors will be reduced. , will enable the staff to work in a comfortable, safe and secure environment.

Due to the heat sources such as buildings, machinery and equipment, and the human body being irradiated by sunlight, the air temperature of the places that need ventilation is higher than that of the outdoors. The exhaust fan can quickly discharge the indoor hot air, so that the room temperature is equal to the outside temperature, and the temperature in the workshop will not rise. The above is the basic situation and introduction of the exhaust fan introduced by the editor today. I believe that my friends also have a certain understanding. I hope this article can help you.