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What is the point of choosing a fan

Release time:

2023-08-29

The function of the fan is a function within the high power range. It is divided into five characteristics according to the flow rate. When selected, it shall be subject to the function table. The full pressure value of the qualified product of the fan shall not exceed 5% under the rated flow rate. The function selection table is the function under the standard state. The atmospheric pressure under the standard state is 101325Pa,t = 20, and the relative temperature Ψ = 50% air state. The fan device mode can be divided into vertical or horizontal type.

The function of the fan is a function within the high power range. It is divided into five characteristics according to the flow rate. When selected, it shall be subject to the function table. The full pressure value of the qualified product of the fan shall not exceed 5% under the rated flow rate. The function selection table is the function under the standard state. The atmospheric pressure under the standard state is 101325Pa,t = 20, and the relative temperature Ψ = 50% air state. The fan device mode can be divided into vertical or horizontal type.

Bearing temperature overrun is one of the main reasons for bearing damage. The main reasons for the high temperature of the bearing are as follows: poor smooth quality. The purpose of smoothing is to make the dynamic part not directly contact with the conflict, but constitute the conflict between the solid and the liquid. If the quantity of smooth oil is lacking or the quality is poor, the dynamic part will directly conflict with heat, or the heat cannot be taken away by the smooth oil, which will increase the bearing temperature.

Poor assembly quality of tumbling bearings. If the tightening force between the inner sleeve and the shaft is not good, the gap between the outer sleeve and the bearing seat is too large or too small. Poor bearing quality. Sliding bearing scraping quality is poor, Wujin contact is not good or out of the tire; Rolling bearing rolling surface has cracks, chipping, peeling, etc.

Will damage the stability and uniformity of the oil film, the surface of the bearing heat. The sealing felt is too tight and generates heat. Bearing oscillation is too large and accept the impact load, seriously affecting the stability of the smooth oil film bearing cooling water lack or interruption, affecting the heat out, and the bearing temperature.