Negative pressure fans can be applied in everyone's daily life, but what makes negative pressure fans work? In fact, it is a machine that utilizes the basic principles of air circulation and negative pressure ventilation cooling to achieve actual cooling and ventilation effects. Low energy consumption, sturdy and durable, affordable. But how does the negative pressure fan start? What should I pay attention to?

Before starting the negative pressure fan, the regulating damper at the inlet of the centrifugal fan should be strictly closed to prevent misoperation and starting with load.

Check if there are any issues with the lubricating grease level of the sleeve bearing, the power supply condition of the cooling water pipe, the completeness of the coupling, and whether the anti impact plate is turned off.

Pay attention to the startup time and no-load current for any issues.

After the ammeter indicates the restoration of normal no-load current, the opening of the intake valve can be adjusted to a suitable position.

Verify that there are no abnormalities during the operation of the negative pressure fan.

What are the commonly used negative pressure fans in daily life?

When it comes to negative pressure fans, I believe everyone is familiar with them. I have told you at least a few dozen times. However, "Where does negative pressure fan usually occur?" Therefore, I will talk about this matter with everyone below.

1、 In agriculture and animal husbandry, negative pressure fans have long been used for greenhouse planting. Planting orchids or green plants can also use negative pressure fans.

2、 Animal husbandry, which is extended by greenhouse seeds, is the application of animal husbandry. As we all know, the natural environment of chickens, ducks, geese, and pigs directly affects the yield and survival rate of products. That is to say, the quality of the environment is related to the returns of animal husbandry.

3、 Industrial and Tuhe enterprises used to grow orchids, so many bosses have turned to using them for cooling industrial factories. More than a decade ago, this idea was implemented to this day. Negative pressure fan centrifugal fan is often seen, such as garment factory, shoe factory, small toy hardware factory, etc.

4、 In public places, almost all internet cafes and restaurants are equipped with negative pressure fans, which have low costs, high work efficiency, and can improve the harsh environment with dense population. Some large shopping malls, halls, fitness clubs, subway stations, and other places can all be used.