罗茨风机在同等转速，同等电压的情况下，功率越大，产生的压力越大，功率等于电压乘以电流。也就是说，在同等转速、同等电压的情况下，电流越大，功率越大。三相电动机的转速是固定的，憋压后电机负荷就大了，容易超电流，烧毁电机。罗茨风机是容积式风机，输送的气流与转数成正比。三叶型叶轮每转动一次两个叶轮进行三次吸·排气。与二叶型相比，气体脉动减少，负荷变化小，机械强度高，噪音低，振动小。在两个平行轴上设置了两个三叶型叶轮，轮子与椭圆形底盘内孔面和各叶轮之间始终保持较小的间隔。

At the same speed and voltage of Roots blower, the greater the power, the greater the pressure. The power is equal to the voltage multiplied by the current. In other words, at the same speed and voltage, the greater the current, the greater the power. The speed of the three-phase motor is fixed. After holding the pressure, the motor load is large, which is easy to exceed the current and burn the motor. Roots fan is a positive displacement fan, and the air flow conveyed is directly proportional to the number of revolutions. Each time the three blade impeller rotates, two impellers conduct suction and exhaust for three times. Compared with the two blade type, the gas pulsation is reduced, the load change is small, the mechanical strength is high, the noise is low and the vibration is small. Two three blade impellers are arranged on the two parallel shafts, and a small spacing is always maintained between the wheel and the inner hole surface of the oval chassis and each impeller.

由于叶轮朝相反的方向以一定的速度旋转，被箱体和叶轮包围的一定量的气体从吸入的一侧运输到排出的一侧。因为罗茨鼓风机属于恒流量风机，所以工作的主要参数是风量，输出压力取决于管道和负荷的变化，风量变化很小。罗茨风机是一种高压风机，罗茨鼓风机是容积式风机，输送的气流与转数成正比，将气体从吸入的一侧输送到排出的一侧。如果负载需要一定的压力效果，请使用离心风机。离心风机属于恒压风机，所以工作的主要参数是风压，输出气流取决于管道和负荷的变化，风压变化不大。离心风机，风压不大。空气的压缩过程通常是在几个工作叶轮或几个阶段的离心力的作用下进行的。离心风机属于平方转矩特性，罗茨风机基本属于恒转矩特性。

Since the impeller rotates at a certain speed in the opposite direction, a certain amount of gas surrounded by the box and impeller is transported from the suction side to the discharge side. Because roots blower belongs to constant flow fan, the main working parameter is air volume. The output pressure depends on the change of pipeline and load, and the change of air volume is very small. Roots blower is a kind of high-pressure fan. Roots blower is a positive displacement fan. The delivered air flow is directly proportional to the number of revolutions and transports the gas from the suction side to the discharge side. If the load requires a certain pressure effect, use a centrifugal fan. Centrifugal fan belongs to constant pressure fan, so the main working parameter is wind pressure. The output air flow depends on the change of pipeline and load, and the wind pressure changes little. Centrifugal fan, low wind pressure. The compression process of air is usually carried out under the action of several working impellers or several stages of centrifugal force. The centrifugal fan belongs to the square torque characteristic, and the Roots fan basically belongs to the constant torque characteristic.

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