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Differences between industrial large fans and negative pressure fans

Industrial large fans and negative pressure fans have similar functions, which are cooling and dehumidifying. Therefore, when choosing, people may hesitate and do not know which one to choose. In fact, there are some differences between industrial large fans and negative pressure fans besides their 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?
1. Different assembly
(1) Installation of industrial large fans. Industrial large fans are generally installed above industrial factories and their workshops, which have a wide range of work and can provide cooling for a large part of the area.
(2) Installation of negative pressure fan. Negative pressure fans are generally installed outside the workshop window and at the lower air outlet for convenient external ventilation.
2. The principle is different
(1) The principle of industrial large fans. The cooling principle of industrial large fans is that the cyclone forms a conical shape from top to bottom and promotes towards the road surface, with vertical flow on the ground. When encountering a horizontal cyclone that is isolated on the side or adjacent to the fan, it promotes upward to the flat roof, achieving effective overall ventilation for tall spaces and reasonable cooling for staff. Unclosed spaces with low environmental requirements can also be cooled reasonably.
(2) The working principle of negative pressure fan. Quickly achieve a larger exhaust volume when the fan is plugged in for operation. It can quickly create an air pressure difference between the indoor living environment and the outdoor environment, forming a strong negative pressure, driving dirty and hot gases in the room to be quickly discharged from the outdoor according to the flow direction set by everyone, and reducing the standard air pressure in the room.
3. Different efficacy effects
(1) The actual effect of industrial large fans. At the level of personnel cooling. The natural wind generated by a large energy-saving fan gently blows on the body, promoting the evaporation of sweat to carry away heat, and cooling the body, generating a cooling experience. Generally, this type of cooling experience can reach 5-8 ℃. In terms of air circulation, industrial large fans can accelerate indoor air flow and achieve air circulation effects; In terms of dehumidification and dehumidification, the dehumidification effect of industrial large fans is immediate and effective, as they promote the mixing of gases throughout the room.
(2) Actual effect of negative pressure fan. Due to the sunlight shining on buildings, mechanical equipment, bodies, and other heat sources, it is necessary to ventilate the site at a temperature higher than outdoors. The negative pressure fan can quickly exhaust the indoor heat flow, making the indoor temperature similar to the external environment temperature and preventing the temperature inside the workshop from rising. The negative pressure fan only has the effect of natural ventilation and cooling, and does not have the effect of cooling. Cooling is what the human body feels.
4. Different places of use
(1) Places where industrial large fans are used. Large public buildings such as shopping malls, sports venues, subway stations, airports, etc. promote indoor ventilation, eliminate odors, create a comfortable shopping and natural environment, and increase total sales. And the movable fan in the industrial fan can be used in relatively wide areas, which is also very convenient to use.
(2) Place where negative pressure fans are used. For example, clothing factories, hardware factories, leisure and entertainment clubs, breeding farms, garden flowers, and other enclosed areas require cooling and temperature control.