Features and functions of negative pressure fan

　　It is believed that many people have come into contact with objects such as exhaust fans. What are the characteristics and functions of negative pressure fan as one of them? In general, the fan is the cooling principle of air convection and negative pressure ventilation. It is by the installation site relative to the doors and windows of natural inhalation of fresh air, the indoor hot gas quickly out of the outdoor, other ventilation is not good place, refrigeration ventilation effect can reach 90% - 97%.

　　1、 Features:

　　The whole machine adopts CAD / CAM design, with low investment cost, large air volume, low noise, low energy consumption, stable operation, long service life and high efficiency. The shutter can be opened and closed automatically, which is dustproof, waterproof and beautiful. It can be used for air blowing and exhaust, and is a better  for cooling and ventilation in modern workshop. Environmental protection and energy saving fan will become the mainstream of ventilation and cooling equipment market.

　　2、 Function:

　　1. Ventilation: installed outside the workshop window. It is generally used to remove odor from the air outlet. It is widely used in chemical plants.

　　2. Combined with wet curtain: used for cooling workshop in hot summer. No matter how hot your workshop is, the wet curtain negative pressure fan system can reduce the workshop temperature to about 30 ℃ under certain humidity.

　　3. Scope of application:

　　A. It is suitable for heat treatment plant, foundry, plastic plant, aluminum profile plant, shoemaking plant, leather plant, electroplating plant, printing and dyeing plant, chemical plant and other high temperature or odor workshop.

　　B. It is suitable for labor-intensive enterprises, such as garment factories, assembly workshops, Internet cafes, etc.

　　C. Greenhouse ventilation cooling, livestock farms cooling.

　　D. It is more suitable for the places that need cooling and humidity. Such as cotton spinning factory, wool factory, hemp factory, weaving factory, chemical fiber factory, warp knitting factory, deformation factory, knitting factory, silk factory, socks factory, etc. E. It is suitable for warehousing and logistics

　　4. For the exhaust fan: the general exhaust fan (commonly known as fan) performance is poor, a fan can not blow a few people, negative pressure fan can not, whether it is used on the ground or hanging in the air. General 1000 square meters of workshop use 4 sets, that is, the effect of wind blowing through the house.