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the maximum allowable value of fan bearing FEATURE
Fan at the beginning of work part of bearing vibration is small, but as the running time longer, fan dust will not even attached to the impeller, the gradual destruction of fan dynamic balance, so that the bearing vibration increase gradually, once the vibration to fan the maximum allowed 11mm/s ( amplitude value representation the maximum allowable values below), the wind turbine must be shut down repair ( removal of dust accumulation, redo dynamic balance ). Because it was very dangerous, users should never be forced to use. In fan vibration approaches the dangerous value, measuring instrument with alarm. Vibration of fan bearing the maximum allowable value for:
( 1) bearing vibration speed effectively displayed: 11mm/s.
( 2) bearing amplitude display for the following values:
A. motor synchronous speed of 3000 rpm: the maximum allowed value is: 0.1mm ( double amplitude )
B. motor synchronous speed of 1500 rpm: the maximum allowed value is: 0.2mm ( double amplitude )
C. motor synchronous speed of 1000 rpm.: maximum allowed value is: 0.31mm ( double amplitude )
d. motor synchronous speed of 750 RPM: the maximum allowed value is: 0.4mm ( double amplitude )
e. motor synchronous speed of 600 rpm: the maximum allowed value is: 0.5mm ( double amplitude )
F. motor synchronous speed of 500 rpm when: the maximum allowable value is: 0.6mm ( double amplitude )
风机刚开始工作时轴承部位的振动很小，但是随着运转时间的加长，风机内粉尘会不均匀的附着在叶轮上，逐渐破坏风机的动平衡，使轴承振动逐渐加大，一旦振动达到风机允许的最大值11mm/s时（用振幅值表示的最大允许值如下），风机必须停机修理（清除粉尘堆积，重做动平衡）。因为这时已是非常危险的，用户千万不可强行使用。在风机振动接近危险值时，有测振仪表的会报警。
风机轴承振动的最大允许值为：
（1）用轴承震动速度有效显示时为：11mm/s。
（2）用轴承振幅显示时为以下值：
a. 电机同步转速为3000转/分时： 最大允许值为：0.1mm（双振幅）
b. 电机同步转速为1500转/分时： 最大允许值为：0.2mm（双振幅）
c. 电机同步转速为1000转/分时： 最大允许值为：0.31mm（双振幅）
d. 电机同步转速为750转/分时： 最大允许值为：0.4mm（双振幅）
e. 电机同步转速为600转/分时： 最大允许值为：0.5mm（双振幅）
f. 电机同步转速为500转/分时： 最大允许值为：0.6mm（双振幅）
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Judul: the maximum allowable value of fan bearing
Rating: 100% based on 99998 ratings. 5 user reviews.
Ditulis Oleh 02:09
Rating: 100% based on 99998 ratings. 5 user reviews.
Ditulis Oleh 02:09
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