罗茨鼓风机是不允许在正传的情况下突然反转，早前二叶的风机反转转子会立刻打烂。三叶罗茨风机也会出现齿轮打坏，解决此问题的***好办法就是要装止回阀，并且要保证止回阀能够安全闭合。
Roots blower is not allowed in the story in case of sudden reversal, earlier fan reversal rotor two leaf will be immediately broken. Clover Roots blower will also appear gear broken, the best way to solve this problem is to install the check valve, check valve and to ensure safe closure.
一般情况下罗茨风机是可以反转的，但必须是在风机停止情况下启动。如果长期反转运行，风机在出厂前需作前后端面间隙的调整。
General blower can be reversed, but must be started in the fan stops case. If long-term reversal operation, fan required before and after the gap in the factory before the adjustment.
风机突然停电或因出风口的压力回座，正向的惯性转动和出口反压造成风机的反转而使风机齿轮，联轴器打烂，严重者可能打坏转子或者整个风机。
Fan or a sudden power outage due to outlet pressure back seat, positive inertial rotation and exit pressure caused by fan reversal and the fan gear, shaft coupling break, serious may break or the entire wind turbine rotor.
罗茨风机是可以反转的，一般要求与原有管道断开以后才可以反转，而且必须在风机完全停止以后才能反转。 
Roots blower can be reversed, after the general requirements and the original pipe disconnect can reverse, but also must be completely stopped before the reversal in fan.
你的罗茨风机停电跳车，转子、联轴器总是被打烂，***好在风机出口前部或者风机出口处安装逆止阀，防止管道内反压对罗茨风机本身的影响。
Roots blower power you jump, rotor, shaft coupling is ***ashed, the best in the outlet of the blower fan at the front or at the outlet check valve, to prevent the pipe back pressure effects on Roots blower itself.