轴流风机在使用中最容易出现哪些异常现象

What are the most common anomalies of axial fans in use?

其实很多时候风机在使用中产生一些异常现象是很常见的，但是这些异常现象也往往导致了风机使用效率下降，让风机的使用在一定程度上受到损坏，有一部分的原因是用户在选择中的失误，不同的型号所带来的效果不同，如果被使用到不恰当的场所中，那么出现异常现象就在所难免了。

In fact, many times the fan in the use of some abnormal phenomena is very common, but these abnormal phenomena often lead to the use of fan efficiency decline, so that the use of the fan to a certain extent damaged, part of the reason is the user in the choice of errors, different models bring different results, such as If the fruit is used in an inappropriate place, abnormal phenomena will be unavoidable.

轴流风机根据不同的划分依据可以产生很多不同的类型，钢制风机、玻璃钢风机、塑料风机、PP风机、PVC风机、铝风机、不锈钢风机等，这些都是轴流风机中比较常见的几个类型，不同类型的风机在使用中出现的问题不同，因此解决的方法也存在很大的差异。

Axial-flow fans can produce many different types according to different classification basis. Steel fans, FRP fans, plastic fans, PP fans, PVC fans, aluminum fans, stainless steel fans, etc. These are the more common types of axial-flow fans. Different types of fans have different problems in use, therefore There are also great differences in solutions.

叶片产生裂纹或断裂时轴流风机最常见的一个现象，在送、引风机上均有可能发生，近几年在多个大型电厂已发生多宗；转子故障。如转子不平衡、转子振动等，最严重的甚至发生叶轮飞车事故；电机故障。如过电流等，严重时烧坏电机；油站漏油，调节油压不稳定。即影响风机的调节性能也威胁风机的安全。

One of the most common phenomena of axial-flow fans when blades crack or break is likely to occur in both feeding and induced draft fans. In recent years, many large power plants have occurred; rotor failure. Such as rotor imbalance, rotor vibration, and so on, the most serious accidents even happen to the impeller. Such as overcurrent, serious burn out motor; oil station leakage, regulating oil pressure instability. That is, the regulation performance of the fan is also a threat to the safety of the fan.

叶片磨损也是一个很典型的现象。主要是发生在引风机上。由于电器投入时机把握不好或电器故障，造成引风机磨损。这是燃煤电站引风机最轻易发生的故障。

Blade wear is also a typical phenomenon. It mainly happens on the induced draft fan. Due to poor timing of electrical input or electrical failure, the induced draft fan is worn out. This is the most easily occurring fault of the induced draft fan of a coal-fired power station.

一旦风机出现以上状况，先要停电停机，检查一下是不是流风机长期在失速条件下工作，气流压力脉动幅值显著增加，叶片共振受损；机身本身的机构没有问题，起动设计的是否合理；安装时留下的隐患，如轴系不平衡或联接不好，导致风机振动大、轴承、联轴器易损坏。

Once the fan appears the above situation, first to stop power, check whether the fan long-term stall conditions, gas pressure fluctuation amplitude significantly increased, blade resonance damage; the fuselage itself is not a problem, starting design is reasonable; installation of hidden dangers, such as shaft imbalance or connection Bad, resulting in large fan vibration, bearing and coupling easily damaged.

如果用户发现这些办法都不能解决风机所产生的问题，这个时候就需要对风机的类型进行考虑了，是不是由于类型选择的失败才导致的这些问题，一旦确定问题的原因所在，要立即寻找解决的方法来解决风机的这些问题。

If the user finds that none of these solutions can solve the problems caused by the fan, then it is necessary to consider the type of fan, is it due to the failure of type selection caused by these problems, once the cause of the problem is determined, to immediately find a solution to solve these problems of the fan.