離心風機為什麼會磨損？有哪些因素導致它磨損

造成離心風機磨損的因素有很多，而且多數是由於多重機理綜合作用的結果。典型的磨損有沖蝕磨損和擦傷式塵粒磨損。固體顆粒進入葉輪後與壁面相互作用，在離心流道的進口區域和整個軸向流道內，固體顆粒基本上是在氣流的夾帶及自身慣性的綜合作用下，以非零攻角在碰撞壁面，然後又反彈進入流道內，這樣引起的壁面材料磨損是典型的沖蝕磨損。而在離心流道的出口區域內，塵粒在流道內運動瞭較長的一段距離，大部分和壁面發生過多次碰撞，基本上沿著壓力表面滑動或滾動，並對著壁面有一定的壓力作用，這樣造成的背面材料的磨損屬於擦傷式塵粒磨損，塵粒在壓力面附近區域的集中更加劇瞭塵粒磨損的危害程度。
There are many factors that cause the wear of centrifugal fans, and most of them result from the combined action of multiple mechanisms. Typical wear is erosion wear and abrasive wear. Solid particles interact with the wall after entering the impeller. In the inlet环氧地坪 area of the centrifugal flow channel and the whole axial flow channel, the solid particles are basically under the integrated effect of the entrainment and self inertia of the air flow, and the non zero angle of attack is o印花地坪n the collision wall and then bounces into the flow channel. The wear of the wall material is typical. Erosion wear. In the outlet area of the centrifugal flow channel, the dust particles move a long distance in the flow path, most of which collide with the wall, basically sliding or rolling along the pressure surface, and having a certain pressure on the wall, so the wear of the back material belongs to the abrasion type of dust particles, and the dust particles are pressed. The concentration of the area near the force surface is more harmful to the wear of particles.
磨損的種類有：The types of wear are:
1 磨粒磨損
在風機中固體顆粒以一定的速度與零件表面作相對運動就會引起磨粒磨損。凸凹不平的接觸表面，因相對運動下的銼削效應或界面間分散的固體顆粒的研磨作用所導致的磨損。它對葉輪磨損的程度影響。
1 abrasive wear
In the fan, the relative movement of the solid particles with the surface of the parts at a certain speed will cause abrasive wear. The uneven surface of contact is caused by the filing effect under relative motion or the abrasive wear caused by dispersed solid particles between the interfaces. It affects the degree of abrasion of the impeller .
2 吸附磨損
其它條件相同時，即使提高加工表面的加工精度等級和潔凈度，使彼此貼合更好，但其磨損並不降低，反而因界面貼近，分子吸附作用顯著，加重瞭界面的磨損，稱此為吸附磨損。
2 adsorption wear
When the other conditions are the same, even improving the machining accuracy grade and cleanliness of the machined surface makes each other better, but the wear is not reduced, but the interface is close to the interface, and the molecular adsorption is significant, which aggravates the wear of the interface, which is called the adsorption wear.
3 沖刷磨損
因固體顆粒對金屬表面的沖刷而引起的表面擦傷稱為沖刷磨損。
3 scour wear
Surface abrasion caused by erosion of solid particles on the metal surface is known as erosion wear.
4 疲勞磨損
由於表面疲勞應力(或溫度或沖擊)引起表面裂紋或鱗屑脫落所致稱為疲勞磨損。 總之，從損壞的葉輪來看，各種形式的葉輪磨損的情況及部位不盡相同。但磨損形式主要為以上幾種且都為局部磨損。磨損的部位主要在葉片的工作面和靠近後盤處。
4 fatigue wear
Fatigue failure is caused by surface fatigue stress (or temperature or impact) causing surface cracks or scaling off. In short, from the damaged impeller, the wear and tear of various forms of impeller are different. However, the wear pattern is mainly composed of the above and local wear. The worn parts are mainly located in the working face of the blade and near the rear plate.
辛苦整理！轉載請註明來自http://www.wxmlfj.com/faq/118.html