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Why can the negative pressure fan cool down? How to distinguish the performance of the negative pres

With the continuous promotion of negative pressure fans, more and more companies choose it. Why can the negative pressure fan cool? How to distinguish the performance of the negative pressure fan? Today we take a look.
What is the principle of how the negative pressure fan cools us?
1. Ventilation and cooling: the temperature of the place where ventilation is required is higher than the outdoor temperature due to heat sources such as sunlight, buildings, machinery, human body and other heat sources. The negative pressure fan can quickly discharge the indoor hot air, keeping the room temperature and the outside temperature flat, so that the temperature in the workshop will not continue to rise without circulation.
2. The air flow takes away the heat of the human body. The air flow accelerates the evaporation of sweat and absorbs the heat of the human body, so that the body feels cool, as cool as the natural wind. How does the negative pressure fan make the plant achieve the effect of cooling and ventilation?
3. The negative pressure fan only has the function of ventilation and cooling, without the function of cooling, no harm to human health, health and environmental protection.
Method for distinguishing the performance of negative pressure fan
1. To ensure dynamic balance. Everyone knows that dynamic balance is the basis for ensuring the effective operation of negative pressure fans. The negative pressure fan with good quality and excellent quality has low vibration and low noise during operation, which can greatly improve the working efficiency of the negative pressure fan.
2. In the treatment of noise, enterprises can judge the noise by changing the sound during the operation of the negative pressure fan.
3. When observing the air volume of the negative pressure fan, it can be judged by observing the condition of the blades of the front louver when the fan is in operation and the wind pressure when the negative pressure fan is working.
4. Judge whether the negative pressure fan meets the technical standards by measuring the current.
The cooling principle of the negative pressure fan and the method to distinguish the performance of the negative pressure fan are introduced here, I hope to help everyone!