Among centrifugal fans, in addition to centrifugal fans, there are some other types, such as centrifugal induced draft fans, and both of them are website products. Therefore, it is necessary to know about them so that you can have a comprehensive understanding of website products. , Instead of just focusing on one. And the following is an introduction to the centrifugal induced draft fan, so that everyone can gain some professional knowledge from it.

1. In the process drawing, are there many ways to represent centrifugal induced draft fans? Are there standards or regulations?

From the current point of view, there are many ways to express centrifugal induced draft fans in the process drawings, but there are no standards or regulations. Therefore, the answer to question 1 is yes, and the answer to question 2 is no. In addition, in the standard drawing, the fan model and the three parameters of power, air pressure and air volume will be marked next to the fan.

2. Is there a big difference between a centrifugal induced draft fan and a centrifugal blower?

Centrifugal induced draft fan and centrifugal blower, although these are two common and commonly used fans, they are obviously different. First of all, in the installation position, the two are different. The former is installed at the end of the system, and the latter is installed At the front end of the system. Secondly, in terms of performance and application range, these two are also different and there are differences.

3. How to increase the inlet negative pressure of the centrifugal induced draft fan? In addition. Under normal circumstances, how to calculate the power of the fan?

If you want to increase the negative pressure at the inlet of the centrifugal induced draft fan, you can appropriately increase the fan frequency or reduce the pipe resistance. These two measures can be used to achieve the goal.

The power calculation of the centrifugal induced draft fan has a corresponding calculation formula, which is:

Centrifugal induced draft fan power = fan air volume * actual pressure / gas density / fan efficiency

Through this calculation formula, the specific value of the fan power can be obtained, but you need to pay attention to the conversion between the units to avoid errors.

4. Is the wind blade of the centrifugal induced draft fan swaying or wailing? What is it related to?

In a centrifugal induced draft fan, whether its blades are whirlwind or waived wind depends mainly on the type of impeller used by the fan. If it is a forward impeller, then the blades are waived. If it is a backward and airfoil, The wind blade is the wind, or cut wind. Therefore, centrifugal induced draft fan blades sling or wind, mainly related to the form of the impeller.