The cooling principle of negative pressure fans

The manufacturer of high-pressure centrifugal fans tells you that the negative pressure high-pressure fan uses the principle of air convection and negative pressure ventilation for cooling. Fresh air is naturally drawn in from the opposite side of the installation location - the main entrance or window, and the hot air in the room is quickly and forcibly expelled outdoors. All ventilation problems can be improved, and the cooling and ventilation effect can reach 90%-97%.

The powerful advantages of negative pressure centrifugal fans:

1. The project requires less investment and has low energy consumption. With the same cooling rate, the one-time project investment is approximately one-sixth of that of central air conditioning, and the operating cost is about one-tenth of that of central air conditioning.

2. Powerful cooling effect. In summer, the temperature can drop by 5 to 15 degrees or more, and the higher the average temperature, the greater the cooling effect (the indoor temperature can be reduced to 25 to 30 degrees).

3. Fresh air and humidity. The gas cleanliness reaches 99%.

Brief description of negative pressure fan

Negative pressure fans are a new type of ventilator, belonging to axial flow fans. They are called negative pressure fans because they are mainly used in negative pressure ventilation and cooling projects. The negative pressure ventilation and cooling project encompasses two aspects of meaning: ventilation and cooling. The problems of ventilation and cooling are addressed separately. Negative pressure fans are also used in industries such as positive pressure wet curtain mobile environmental protection air conditioners, positive pressure exhaust fans, and positive pressure hair dryers. The negative pressure fan features a huge volume, an oversized air passage, an oversized blade diameter, an extremely large air volume, ultra-low energy consumption, a low speed ratio, and low noise. Negative pressure fans are mainly classified into galvanized steel plate square negative pressure fans and fiberglass reinforced plastic anti-corrosion triangular negative pressure fans based on their structural materials. At present, the structure and performance parameters of all galvanized steel plate square negative pressure fans on the market are basically the same. The classification of negative pressure fan models and specifications will be described in detail. FRP anti-corrosion triangular negative pressure fans are classified into belt type and direct connection type based on different transmission system methods. The classification of negative pressure fan models and specifications will be described in detail.