Industrial negative pressure fan

Industrial negative pressure fan is a new type of ventilation fan, which belongs to the axial flow fan and is mainly used for negative pressure ventilation and cooling projects, so it is called negative pressure fan. Negative pressure ventilation and cooling projects involve both ventilation and cooling, and solve both problems at the same time. Negative pressure fans are also used in positive pressure water curtain environment air conditioning, positive pressure air supply, and positive pressure blowing. Negative pressure fans have the characteristics of large volume, super large air duct, large diameter of blades, large air volume, low energy consumption, low speed, low noise, etc. Negative pressure fans are mainly divided into galvanized steel plate square negative pressure fans and glass fiber horn negative pressure fans from the structural material point of view. 1. "The Significance of Negative Pressure Ventilation:   (1) Facilitates the prompt removal of excess heat…