離心風機出現了動平衡不良的故障問題，是不是葉輪引起的？今天我們就這個問題展開說說，其實，造成離心風機動平衡不良的因素有很多，不能從單方面考慮，具體內容如下：

 一、風機葉輪出現不平衡現象而造成的；風機在長期運行過程中，葉輪表面積聚大量的粉塵或異物、葉輪在運轉期間出現了磨損或腐蝕情況、葉輪出現了松動現象及葉輪修補后沒有做動平衡處理等；

 二、風機軸承故障造成的；軸承出現了磨損或斷裂、軸承箱的固定螺栓出現松動現象、軸承安裝不到位（例如：聯軸器未做對中處理）等；

 三、風管系統或其他設備產生的震動，造成了離心風機動平衡不良的情況；

 引起離心風機動平衡不良的因素有很多，所以我們不能只根據片面狀態去判定，需要使用震動平衡儀去逐一排查，找到問題的根本所在，再進行處理解決。

The centrifugal fan has a problem of poor dynamic balance, is it caused by the impeller? Today we will talk about this problem. In fact, there are many factors that cause poor dynamic balance of centrifugal fans, which cannot be considered unilaterally. The specific contents are as follows:

1、 The fan impeller is unbalanced; During the long-term operation of the fan, a large amount of dust or foreign matter accumulates on the surface of the impeller, the impeller is worn or corroded during the operation, the impeller is loose, and the impeller is not balanced after repair;

2、 Caused by fan bearing failure; The bearing is worn or broken, the fixing bolts of the bearing box are loose, and the bearing is not installed properly (for example, the coupling is not aligned);

3、 Vibration generated by air duct system or other equipment causes poor dynamic balance of centrifugal fan;

There are many factors that cause poor dynamic balance of centrifugal fan, so we can't judge according to one-sided state only. We need to use a vibration balancer to check one by one, find the root of the problem, and then deal with it.