Crane accessories double blade radiator, crane accessories

型号：

双扇叶散热器

Double blade radiator
Introduction, oil-impregnated bearings are sleeve bearings that use sliding friction. They use lubricating oil as a lubricant and drag reducer. They have low operating noise and low manufacturing costs during initial use, but this kind of bearing wears out. Seriously, there is a big gap in service life compared with ball bearings. Moreover, when this kind of bearing is used for a long time, due to the oil seal (computer radiator products cannot use high-end oil seals, generally ordinary paper oil seals), the lubricating oil will gradually evaporate, and dust will also enter the bearing, causing the fan to Problems such as slower rotation speed, increased noise, and in severe cases, severe vibrations caused by eccentricity of the fan due to bearing wear.
The double-blade radiator is not immune to the dust. Due to the wind flow, the wind pressure generated by the radiator fins is not pressed down vertically, but spreads in an annular shape. This is like a ceiling fan on the roof of your home. The air flow below is often not as strong as the outside of the ceiling fan, and the dust in the air will circulate around the outside with the wind speed and adhere to the heat dissipation fins around the fan, causing the air flow to be blocked. At the same time, the return air caused by the blockage of the fins will increase. A large amount of dust will be drawn into the fan blades, reducing the service life of the radiator. Water vapor in the air adheres to the fan blades, causing dust to adhere to the fan blades, increasing the weight of the blades and reducing the speed. The radiator bearings rotate at high speed. As time goes by, , there is oily substance overflowing the bearings, sticking to the radiator, and accumulating more dust.
The fan speed of the double-blade radiator is determined by the number of turns of the coil in the motor, the operating voltage, the number of fan pages, inclination angle, height, diameter and bearing system. When the fan structure is fixed, the rotation speed of the DC fan (that is, the fan using DC power) changes synchronously with the change of the operating voltage. The fan's speed can be measured through the internal speed signal, or it can be measured externally. External measurement uses other instruments to see how fast the fan rotates. Internal measurement can be done directly inside or through software. The internal measurement error is relatively large.
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