A, ventilation principle
Negative pressure fan to the outside of the air so that the indoor air pressure drops, the indoor air becomes thinner, forming a negative pressure zone, the air flows into the room due to the air pressure difference compensation. In the practical application of industrial plants, negative pressure fans are installed on one side of the plant, the air inlet on the other side of the plant room, the air from the air inlet to the negative pressure fan to form a convection blowing. In this process, near the negative pressure fan near the doors and windows remain closed, forcing the air from the air inlet side of the doors and windows to compensate for the inflow of the workshop. The air flows into the workshop from the air inlet in a queue and in an orderly manner, flows through the workshop and is discharged from the workshop by the negative pressure fan. The air exchange is thorough and efficient, and the air exchange rate can be as high as 99%.
Through specific engineering design, according to the need to design the speed of air exchange and wind speed, any high heat, harmful gases, dust and fumes can be quickly discharged from the workshop, any ventilation problems can be completely solved at once. The effect of ventilation can be achieved within a few seconds from the opening of the fan.
Two, cooling principle
1, ventilation cooling: due to sunlight irradiation of buildings, machinery and equipment, the human body and other heat sources lead to the need to ventilate the place where the temperature is higher than outdoor. Negative pressure fan can be indoor hot air quickly discharged, so that the room temperature and the outside temperature is equal, not to the workshop temperature rise.
2, air flow to take away the body heat, air flow to accelerate the evaporation of sweat and absorb the body heat, so that the body feels cool, and the natural wind as cool.
3, negative pressure fan only ventilation cooling effect, there is no refrigeration function, cool is the feeling of the human body. Negative pressure fan can reduce the temperature of how much the statement is ignorant.
4, and water curtain with the use of the hottest time in the summer can be the workshop temperature control within 28 degrees Celsius. But the cool feeling of the human body can be compared with the air conditioning, a little longer to the water curtain will feel cold and can not stand.
What are the advantages of negative pressure fan
1, good quality: negative pressure fan is the introduction of German technology to produce high-quality negative pressure fan.
2, ultra-convenient: negative pressure fan manual shutter control, in the absence of fan operation can be normal light ventilation.
3, low investment: negative pressure fan single pumping volume, applicable to a wide area, is the central air-conditioning 1/5 of the total investment, the same type of ventilation and cooling project with the highest cost-effective.
4, ultra-environmental: negative pressure fan without compressor, no refrigerant, no pollution, low noise.
5, very healthy: negative pressure fan for the workshop to provide fresh and clean air, increase the oxygen content of the air.
6, very simple: negative pressure fan easy to install, less maintenance, easy to operate, without professional maintenance.
7, ultra-durable: negative pressure fan using heavy aluminum die-casting blades, high temperature resistance, no aging, no deformation.