Comparative Analysis Of Commonly Used Methods Of Ventilation And Cooling In Factories
At present, the following methods are mainly used to cool down factories:
- Ventilator exhaust air cooling
- Compression refrigeration cooling
- Negative pressure wet curtain ventilation, cooling and air conditioning system.
Below, analyze and compare these three factory ventilation and cooling methods:
Ventilator exhaust cooling
It uses a fan to cool down. The ventilation and cooling equipment includes electric fans, blowers, axial flow fans, centrifugal fans, etc. It is characterized by low price, easy installation, obvious ventilation effect, and poor cooling effect.
Compression refrigeration cooling
The principle is to use the refrigerant vapor compression method. Its equipment includes central air conditioners, purification air conditioners and split air conditioners, such as central air conditioners. The cooling effect is the best, but the investment cost is high, the operating cost is high, the amount of fresh air generated is small, and the air quality is poor. This type of ventilation and cooling equipment generally requires professionals to maintain, and is not suitable for solving the ventilation of large-area production workshops such as factories. Cooling issue.
Negative pressure wet curtain ventilation, cooling and air conditioning system
It is said to be an air conditioner, but it is not actually an air conditioner, but the effect is better than that of an air conditioner. The principle it uses is water curtain water evaporative refrigeration, and its products include water curtain wall + fan-type negative pressure exhaust and water curtain fan (commonly known as environmentally friendly air conditioners).
The characteristics of these two types of products are low investment. The purchase cost is only 1/4 of the air conditioner. The operating cost is only 1/8 of the air conditioner. At the same time, it is simple to install and maintain. The most important thing is that it has good effect and its indoor temperature Generally, it can be reduced to 5-10 degrees. In hot summer, the temperature of the factory workshop can be basically kept within 30 degrees. Maintaining ventilation at the same time is the cooling method currently used in most factories.
