The difference between industrial large fans and negative pressure fans is that industrial large fans and negative pressure fans have similar functions, that is, cooling and dehumidification. Therefore, people may hesitate to choose which one to choose. In fact, industrial large fans and negative pressure fans have some differences besides similar functions. By understanding the differences between the two, we can choose according to our own needs, What are the differences between industrial large fans and negative pressure fans? The answers provided below are expected to be helpful to everyone.

Differences between industrial large fans and negative pressure fans

1. Installation is different

(1) Installation of industrial large fans. Industrial large fans are generally installed above factories and workshops, which have a wide working range and allow a large portion of the area to be cool.

(2) Installation of negative pressure fan. Negative pressure fans are generally installed outside the workshop window and at the lower air outlet for easy external ventilation.

2. Different principles

(1) Principles of industrial fans. The cooling principle of industrial large fans is that the airflow is pushed from top to bottom in a conical shape towards the ground, and flows horizontally to the ground. When encountering horizontal airflow blocking or adjacent to the fan, it is pushed up to the roof, which can achieve effective all-round overall ventilation and personnel cooling for tall spaces. Unclosed spaces with low environmental requirements can also be effectively cooled.

(2) Working principle of negative pressure fan. Quickly reach a large exhaust volume when the fan is powered on and working. It can quickly create an air pressure difference between the indoor environment and the outdoor environment, forming a strong negative pressure, forcing the dirty and hot indoor air to be quickly discharged from the outdoor according to the flow direction we set, and the indoor air pressure will decrease.

3. Different effects

(1) Industrial fan effect. In terms of personnel cooling. The natural breeze generated by a large energy-saving fan blows on the human body, promoting the evaporation of sweat to carry away heat and cooling the body, bringing a cooling sensation. Usually, this cooling sensation can reach 5-8 ℃. In terms of natural ventilation, industrial fans can accelerate indoor air flow and achieve the effect of natural ventilation; In terms of dehumidification and dehumidification, the dehumidification effect of industrial fans is direct and effective, promoting air mixing throughout the entire space.

(2) Negative pressure fan effect. Due to sunlight shining on buildings, machinery, human bodies, and other heat sources, the temperature in places that require ventilation is higher than outdoors. The negative pressure fan can quickly exhaust the indoor hot air, keeping the room temperature at the same level as the outside temperature, and preventing the temperature inside the workshop from rising. The negative pressure fan only has the function of ventilation and cooling, without the function of refrigeration. Cooling is the feeling of the human body.

4. Different usage locations

(1) Places where industrial large fans are used. Large public buildings such as shopping malls, gyms, stations, airports, etc. promote air circulation, dispel odors, create a comfortable shopping and viewing environment, and increase sales. Moreover, mobile fans in industrial fans can be used in relatively open areas and are also more convenient to use.

(2) Place where negative pressure fans are used. For example, clothing factories, electronics factories, entertainment venues, pig farms, garden flowers, and other enclosed places that require cooling and humidity.