罗茨风机的传动方式有直连和皮带连接两种，通常选用的是皮带传动，因为直连的罗茨风机，风机的转速和电机的转速是同步的，而普通的4级电机的转速1470转，选用其他级数的电机成本又高所以大家一般选用4级的电机，采用皮带传动的方式既经济又耐用。

There are two transmission modes of Roots blower: direct connection and belt connection. Belt transmission is usually used, because the rotation speed of the fan and the motor of the direct connection roots blower are synchronous, while the rotation speed of the ordinary 4-stage motor is 1470 rpm. The cost of selecting other stages of motor is high. Therefore, the 4-stage motor is generally selected, and the belt transmission mode is economical and durable.

采用三角带传动就面临这一个问题，罗茨风机的转速与电机的转速不同怎样计算呢？可以用以下公式计算：电机转速*电机转速=风机转速*风机转速。

The use of V-belt drive is faced with this problem. How to calculate the speed of Roots blower is different from that of motor? It can be calculated with the following formula: motor speed * motor speed = fan speed * fan speed.

通过这个公式不难看出只要罗茨风机皮带轮的尺寸恒定，而罗茨风机的转速又通过流量和压力参数的要求可以从说明书上查的出来，罗茨风机的转速也以定好，电机的转速也是恒定的，那么计算出电机带轮的尺寸就轻而易举了。

Through this formula, it is not difficult to see that as long as the size of the belt pulley of the roots blower is constant, and the speed of the roots blower can be checked from the manual according to the requirements of the flow and pressure parameters, the speed of the roots blower is also fixed, and the speed of the motor is also constant, it is easy to calculate the size of the motor pulley.

拧紧锁紧三叶罗茨风机的螺母和调整螺钉。降低入口温度和出口压力。在某些情况下，三叶罗茨风机使用时间较长，偶尔会发出尖叫声，这可能是皮带松脱，三叶罗茨风机转速不稳定，有快有慢，齿轮在转速不稳定的情况下容易发出尖叫声。

Tighten the nuts and adjusting screws for locking the three blade roots blower. Reduce the inlet temperature and outlet pressure. In some cases, the three blade roots blower has been used for a long time and occasionally makes a squeal, which may be due to the loose belt, unstable rotation speed of the three blade roots blower, fast speed and slow speed, and the gear is easy to make a squeal when the rotation speed is unstable.

降低风机出口，而不是在风机出口，应在管道出口处降低，也会增加风机的压力，这也需要配合电机的电流值，不能盲目地提高或降低。

To reduce the outlet of the fan, not at the outlet of the fan, it should be reduced at the outlet of the pipe, which will also increase the pressure of the fan, which also needs to cooperate with the current value of the motor, and can not be blindly increased or decreased.

风机的性能直接影响到我们处理的污水的质量和能耗。低压三叶罗茨风机又称低压三叶罗茨风机，高压三叶罗茨风机在污水处理中不同于普通离心式罗茨风机。不清空是非常危险的错误操作。转动方向是从皮带轮侧面向左转动。

The performance of the fan directly affects the quality and energy consumption of the sewage we treat. Low pressure three leaf roots blower is also called low pressure three leaf roots blower. High pressure three leaf roots blower is different from ordinary centrifugal roots blower in sewage treatment. Not clearing is a very dangerous mistake. The direction of rotation is from the side of the pulley to the left.

罗茨风机的转速高低判断标准要看罗茨风机具体机型而定，小风机可以转速高一点，主要是源自罗茨风机生产加工制造时动平衡测试仪的精 密度，精 密度越高转速可以越大，不过目前动平衡测试仪精 密度比较有限，所有大的罗茨风机转速就要低一点，小的罗茨风机就可以转速高一点。选罗茨风机的时候，建议选择中低转速，防止出现高转速，这样才能是罗茨风机的使用寿命延长。

The criterion for judging the speed of Roots blower depends on the specific model of Roots blower. The small blower can rotate a little higher, which is mainly due to the precision of the dynamic balance tester during the production, processing and manufacturing of Roots blower. The higher the precision, the greater the speed. However, the precision of the dynamic balance tester is relatively limited at present, and the speed of all large roots blowers is lower, A small roots blower can speed up a bit. When selecting roots blower, it is recommended to select medium and low speed to prevent high speed, so as to prolong the service life of Roots blower.

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