In terms of the specific aspects involved in the negative pressure fan, its cooling can be said to be important, and it must be understood and mastered, otherwise our learning is incomplete. Therefore, since it has a certain degree of importance, it is not too late in the following, so let's do it well so that we can grasp it in time and use it reasonably for the benefit of ourselves.

    1.Notes on the cooling of negative pressure fans

    In terms of negative pressure fan cooling, for all of us, especially learners, we should know and master, mainly:

    (1) Check the opening and closing action of the regulating valve in the negative pressure fan and some other related valves, whether it is flexible and reliable, and whether the mark is clearly visible to avoid problems and cause adverse effects.

    (2) For each component on the negative pressure fan, a comprehensive inspection should be performed without any omissions, mainly to see if there are any abnormalities or problems, and whether the voltage and current of the fan are within the normal range and whether their fluctuations are Normal wait. Because if the above problems occur, it will affect the cooling effect of the negative pressure fan.

    (3) In the installation of the negative pressure fan, to be correct and in place, there must not be a slight deviation, so as not to affect its cooling effect.

    2. What are the relevant factors in the cooling of negative pressure fans?

    In terms of the cooling of the negative pressure fan, its related factors, through the working principle of the fan, it can be known that in the rotation speed, the number of impeller blades, the blade installation angle and the chord length, if they are well matched, then it can be The negative pressure fan has a good cooling effect. In addition, if the number of blades, the blade installation angle, and the blade section chord length are determined, then the speed can be determined to match it.

    In addition, it should be noted that under the given design technical parameters, the speed of the negative pressure fan should be the design speed. This is better, and it should avoid too large or too small problems, so as not to affect the negative pressure fan. The cooling effect affects the performance of the fan.