1、 Motor phase failure operation

这是三相异步电机的杀手，电机正常运行时三相负载为对称负载，因此三相电流基本保持平衡，大小相等，如果运行中电机缺相（三相绕组中任一相断开的现象叫缺相），风机振动将会变大、出现异常声音、转速下降、电流增加，电机温度将会急剧升高，从而导致电机烧坏，质量一般的电机多十几分钟就会烧坏。

This is the killer of three-phase asynchronous motors. During normal operation of motors, the three-phase loads are symmetrical loads, so the three-phase currents are basically balanced and equal. If the motor is short of phase during operation (the phenomenon that any phase of the three-phase windings is disconnected is called phase loss), the fan vibration will increase, abnormal sound will appear, the rotation speed will decrease, the current will increase, and the motor temperature will rise sharply, resulting in the motor burning out, Motors of ordinary quality will burn out in more than ten minutes.

二、轴承损坏

2、 Bearing damage

由于罗茨风机长时间不间断地运行致使电机本体运行温升过高，而轴承补充加油脂不及时造成轴承缺油直轴承损坏、会出现轴弯曲、皮带断裂等现象，致使定、转子摩擦（俗称扫膛）引起铁心温度急剧上升，烧毁槽绝缘、匝间绝缘，从面造成绕组匝间短路或对地“放炮”。严重时会使定子铁心倒槽、错位、转轴磨损、端盖报废等。

Due to the continuous operation of Roots blower for a long time, the operating temperature rise of the motor body is too high, and the failure to add grease to the bearing in time causes the bearing to be short of oil until the bearing is damaged, the shaft will be bent, the belt will be broken, and so on. As a result, the friction between the stator and rotor (commonly known as bore sweeping) will cause the core temperature to rise sharply, burn the slot insulation and turn to turn insulation, and cause the winding turn to turn short circuit or "blasting" to the ground from the surface. In serious cases, the stator core will be inverted, misaligned, the rotating shaft will be worn, and the end cover will be scrapped.

正和罗茨风机车间

Zhenghe roots blower workshop

三、风阀关闭的情况下会造成过载烧毁

3、 When the air valve is closed, it will cause overload and burn

由于罗茨风机启动后风阀未有打开或打开的量不够。而风机在此情况运行下，致使由于罗茨风机电机本体运行温度急剧上升直烧毁风口或风阀复位后，而风机未及时关闭，而风机在此情况运行下，也会致使由于电机本体运行温度急剧上升直烧毁。如果是保护功能正常（加装合适的热继电器），一般不会发生。但是，要注意的是，因热继电器无法校验，并且保护数值也不十分准确，选型不合适等等加上人为设置成自动复位，所以需要保护的时候，往往起不到作用，也可能多次保护以后，没有找到原因，人为调高保护数值。使保护失效。

Because the air valve is not opened or the opening amount is not enough after the roots blower is started. When the fan operates under this condition, the operating temperature of the motor body of Roots blower rises sharply until the tuyere is burned or the air valve is reset, but the fan is not closed in time. When the fan operates under this condition, the operating temperature of the motor body rises sharply until it is burned. If the protection function is normal (add a suitable thermal relay), it will not happen generally. However, it should be noted that because the thermal relay can not be calibrated, and the protection value is not very accurate, the selection is not appropriate, etc., and the manual setting is automatic reset, it often does not work when protection is needed. It may also be that after several times of protection, the reason is not found, and the protection value is manually increased. To disable the protection.

四、受潮

4、 Damp

因为配电柜或电机进水或受潮造成的绝缘降低，也是常见的损坏原因，但是没有办法作防护。只能使用中注意和定期摇绝缘。在电机没爆以前，烘干、重新浸漆可解决。尤其是用变频器驱动的电机，更要小心此项，不然可能连变频器一块报销。

Insulation degradation caused by water ingress or moisture in the distribution cabinet or motor is also a common cause of damage, but there is no way to protect it. Only pay attention to and shake the insulation regularly during use. Before the motor explodes, it can be solved by drying and re dipping. Especially for the motor driven by the frequency converter, be more careful about this item, otherwise it may be reimbursed together with the frequency converter.

五、其它

5、 Other

另外还有的不是很常见的原因：如电压过低或过高，震动造成接线柱松脱相间短路，虫鼠危害、进口电机电压与国内电压不配合。各种减压起动回路故障造成不转换，罗茨风机电机长时间低压工作等。因此，在使用前注意预先检查各项指标后在启动，可以减小事故率。

In addition, there are other reasons that are not very common: for example, the voltage is too low or too high, the terminal is loose and the phase to phase short circuit is caused by vibration, insects and rats are harmful, and the voltage of imported motor does not match the domestic voltage. Failure of various reduced pressure starting circuits results in non switching and long-term low-voltage operation of Roots blower motor. Therefore, the accident rate can be reduced by paying attention to checking all indicators in advance before use and starting.

以上就是为大家介绍的有关山东罗茨风机的详细的介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以的态度,为您提供服务http://www.sddyfd.com/

The above is the detailed introduction about Shandong roots blower. I hope it can help you. If you have any questions, please contact us. We will provide you with services in a professional manner http://www.sddyfd.com/