现在，由于离心风机性能的重要性，它将影响风机的使用寿命，因此，在使用离心风机之前，必须对离心风机的性能进行测试，以更好地了解其性能，并正确、合理地使用，以提高离心风机的整体性能，因此，在设备投入使用后，首先要掌握离心风机性能测试的方法和注意事项，如何正确使用离心风机性能测试设备，提高使用效率？

Now, due to the importance of centrifugal fan performance, it will affect the service life of the fan. Therefore, before using the centrifugal fan, the performance of the centrifugal fan must be tested to better understand its performance and use it correctly and reasonably, so as to improve the overall performance of the centrifugal fan. Therefore, after the equipment is put into use, First of all, we should master the methods and precautions of centrifugal fan performance test. How to correctly use the centrifugal fan performance test equipment to improve the use efficiency?

如何提升离心风机的性能测试和使用率

How to improve the performance test and utilization rate of centrifugal fan

测离心风机性能时，通过连接管将压力表与测气管测压孔连接，但连接前应注意检查压压管是否漏气，如漏气请不要使用，然后在力矩臂上加一重量，以测出力矩，使力矩臂保持水平，接着，安装待测的离心风机，拆卸其叶轮，启动电机，此时，如果力矩臂不是水平的，则增加重量，直至达到水平，同时，要求工作人员记录离心风机的空载转矩。

When measuring the performance of the centrifugal fan, connect the pressure gauge with the pressure tap of the measuring pipe through the connecting pipe, but before connecting, pay attention to check whether the pressure pipe leaks. If it leaks, please do not use it. Then add a weight to the torque arm to measure the torque and keep the torque arm horizontal. Then, install the centrifugal fan to be tested, remove its impeller and start the motor. At this time, If the torque arm is not horizontal, increase the weight until it reaches the level, and ask the staff to record the no-load torque of the centrifugal fan.

接着，安装离心风机叶轮，连接进气口和测试气管，转动联轴器，检查叶轮与进气口之间是否有划痕和摩擦，正常启动电机，在运行10分钟后，要求保持臂水平，等待风机稳定后，才能记录所需的参数值，另外，要通过降低流速来改变离心风机的工作状态，然后记录所采用的工况参数。

Then, install the centrifugal fan impeller, connect the air inlet and test air pipe, rotate the coupling, check whether there are scratches and friction between the impeller and the air inlet, start the motor normally, keep the arm horizontal after running for 10 minutes, and record the required parameter values after the fan is stable. In addition, change the working state of the centrifugal fan by reducing the flow rate, Then record the working condition parameters adopted.

一般情况下，离心风机有很多内部产生摩擦的原因，通过适当调整叶轮前板与集电器之间的间隙可以缓解这一问题，它不能从离心风机的推力衬套上拆下，其离心风机内的密封圈也可能与密封齿发生碰撞，只要更换密封圈，调整密封圈与密封齿之间的间隙即可达到更好的使用效果。

Generally, the centrifugal fan has many internal friction reasons. This problem can be alleviated by properly adjusting the gap between the impeller front plate and the collector. It cannot be removed from the thrust bushing of the centrifugal fan, and the sealing ring in the centrifugal fan may collide with the sealing teeth. As long as the sealing ring is replaced, Better use effect can be achieved by adjusting the clearance between the sealing ring and the sealing teeth.

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