離心風機使用過程中會出現哪些問題？怎麼解決

離心風機是一種將原動機機械能轉換為輸送氣體、給予氣體能量機械，它是水泥廠中不可少機械設備，主要有送離心風機、引離心風機、一次離心風機、密封離心風機和排離心風機等，離心風機實際運行中，特別是引離心風機運行條件較惡劣，故障率較高，迅速判斷離心風機運行中故障產生原因，采取有力措施解決故障是工廠連續安全運行保障。離心風機故障類型繁多，原因也很復雜，但經調查發現實際運行中離心風機故障大多是由軸承振動、軸承溫度高、動葉卡澀、保護裝置誤動造成的。
Centrifugal fan is a kind of mechanical energy that converts the mechanical energy of the original motive into the transport gas and gives the gas energy machinery. It is an indispensable mechanical equipment in the cement plant. It mainly includes the centrifugal fan, the centrifugal fan, the centrifugal fan, the sealed centrifugal fan and the centrifugal fan, etc., in the actual operation of the centrifugal fan, especially the centrifugal fan. The operation conditions are bad, the failure rate is high, and the cause of the failure of the centrifugal fan is quickly judged, and the effective measures to solve the fault are the guarantee of the continuous safe operation of the factory. The fault types of centrifugal blower are various and the reasons are very complicated, but it is found that the fault of centrifugal fan in actual operation is mostly caused by the vibration of the bearing, the high temperature of the bearing, the astringent of the movable leaf and the misoperation of the protective device.
一、離心風機軸承振動超標
離心風機軸承振動是運行中常見故障，離心風機振動會引起軸承和葉片損壞、螺栓松動、機殼和風道損壞等故障，嚴重危及離心風機安全運行。
離心風機軸承振動超標原因較多，如能針對不同現象分析原因采取恰當處理辦法，往往能起到事半功倍效果。
One, the bearing vibration exceeding standard of centrifugal fan
The vibration of centrifugal fan bearing is a common fault in operation. The vibration of centrifugal fan will cause damage of bearing and blade, loosening of bolt, damage of casing and air duct and so on, which seriously endangers the safe operation of centrifugal fan.
There are many reasons why the vibration of the centrifugal fan exceeds the standard. If we can take appropriate measures for different reasons, we can get twice the result with half the effort.
1、處理葉片非工作面積灰降低離心風機振動
這類缺陷常見於磨機引離心風機，現象主要表現為離心風機運行中振動突然上升。這是當氣體進入葉輪時，與旋轉葉片工作面存一定角度，流體力學原理，氣體葉片非工作面一定有旋渦產生，氣體中灰粒旋渦作用會慢慢沉積非工作面上。機翼型葉片*易積灰，當積灰達到一定重量時葉輪旋轉離心力作用將一部分大塊積灰甩出葉輪。各葉片上積灰不可能完全均勻一致，聚集或可甩走灰塊時間不一定同步，結果葉片積灰不均勻導致葉輪質量分佈不平衡，使離心風機振動增大。
這種情況下，通常隻需把葉片上積灰鏟除，葉輪又將重新達到平衡，減少離心風機振動。實際工作中，通常處理方法是臨時停機後打開離心風機機殼人孔門，檢修人員進入機殼內清除葉輪上積灰。這樣环境惡劣，存不安全因素，造成機組非計劃停運，檢修時間長，勞動強度大。
1. Deal with the non working area of blades and reduce the vibration of centrifugal fans.
This kind of defect is common in the centrifugal fan of the mill. The phenomenon is mainly due to the sudden rise in the vibration of the centrifugal fan. This is when the gas enters the impeller, and there is a certain angle with the working face of the rotating blade. The principle of fluid mechanics, the non working surface of the gas blade must have whirlpool, and the action of the gray particle swirl in the gas will slowly deposit on the non working surface. The wing blade is easy to accumulate ash, and when the ash reaches a certain weight, the impeller rotates centrifugal force to throw a large mass of ash out of the impeller. The dust accumulation on the blade can not be completely uniform, and the time of gathering or removing ash blocks is not always synchronized. The result of uneven ash accumulation results in uneven distribution of the mass distribution of the impeller and increases the vibration of the centrifugal fan.
In this case, the ash is usually removed and the impeller will be re balanced so as to reduce the vibration of the centrifugal fan. In actual work, the usual way of handling is to open the centrifugal fan shell and manhole door after temporary shutdown, and the maintenance personnel enter the casing to clear ash on the impeller. In such a bad environment, unsafe factors cause unplanned outage, long maintenance time and strong labor intensity.
2、風道系統振動導致引離心風機振動
煙、風道振動通常會引起離心風機受迫振動，離心風機出口擴散筒隨負荷增大，進、出風量增大，振動也會隨之改變。反之，離心風機進風口進風面積不平均，如擋板開閉不統一，也會引起葉輪振動。
2. Vibration of air duct system leads to vibration of centrifugal fan
The vibration of the smoke and air duct usually causes the forced vibration of the centrifugal fan. The inlet and outlet of the centrifugal fan will increase with the increase of the load, and the vibration will also change. Conversely, the inlet area of the centrifugal fan inlet is not uniform. If the baffle is closed, it will cause vibration of the impeller.
3、動、靜部分相碰引起離心風機振動
生產實際中引起動、靜部分相碰主要原因：
（1）葉輪和進風口（集流器）不在同一軸線上
（2）運行時間長後進風口損壞、變形。
（3）葉輪松動使葉輪晃動度大。
（4）軸承損壞
（5）主軸彎曲
不同情況采取不同處理方法。引起離心風機振動原因很多，其它如連軸器中心偏差大、基礎或機座剛性不夠、原動機振動引起等等，是多方面原因造成的結果。實際工作中應認真總結經驗，多積累數據，掌握設備狀態，摸清設備劣化規律，出現問題就能有放矢的采取相應措施解決。
3, the dynamic and static part of the collision caused the vibration of the centrifugal fan
The main reasons for the collision between moving parts and static parts in production practice are:
(1) impeller and inlet (collector) are not on the same axis.
(2) the running time is long and the back inlet is damaged and deformed.
(3) the loosening of the impeller makes the sloshing of the impeller large.
(4) bearing damage
(5) the bending of the spindle
Different treatments are taken in different situations. There are many reasons for the vibration of the centrifugal fan, such as the larg彩色沥清地坪e deviation of the center of the shaft, the lack of rigidity of the base or the frame, the vibration of the original motive, and so on. It is the result of many reasons. In actual work, we should carefully sum up experience, accumulate more data, master the state of equipment, and find out the law of equipment deterioration, and we should take the corresponding measures to solve the problem.
二、軸承溫度高Two. High temperature of bearing
離心風機軸承溫度異常升高原因有三類：潤滑不良、冷卻不夠、軸承異常。離心式離心風機軸承置於離心風機外，若是軸承疲勞磨損出現脫皮、麻坑、間隙增大引起溫度升高，一般可以聽軸承聲音和測量振動等方法來判斷，如是潤滑不良、冷卻不夠原因則是較容易判斷。而軸流離心風機軸承集中於軸承箱內，置於進氣室下方，當發生軸承溫度高時，離心風機運行，很難判斷是軸承有問題潤滑、冷卻問題。實際工作中應先從以下幾個方面解決問題。
There are three reasons for abnormal temperature rise of centrifugal fan bearing: poor lubrication, insufficient cooling and abnormal bearing. The centrifugal fan bearing is placed outside the centrifugal fan. If the bearing fatigue wear is peeled, flax pit, and gap increases the temperature increases, it can usually be judged by the methods of bearing sound and measuring vibration, such as bad lubrication and insufficient cooling, it is easier to judge. The axial flow centrifugal fan bearing is concentrated in the bearing box and placed under the intake chamber. When the bearing temperature is high, the centrifugal fan is r透水地坪unning. It is difficult to judge the problem of lubrication and cooling of the bearing. In actual work, we should first solve the problem from the following aspects.
1、加油是否恰當。應當定期工作要求給軸承箱加油。軸承加油後也會出現溫度高情況，主加油過多。這時現象為溫度持續不斷上升，到達某點後（一般比正常運行溫度高10℃～15℃左右）就會維持不變，然後會逐漸下降。1, whether the refueling is appropriate. Regular work should be required to refuel the bearing box. Bearing oil will also appear after the temperature is high, the main refueling too much. At this point, the temperature continues to rise, after reaching a point (generally 10 to 15 degrees centigrade above normal operating temperature) will remain unchanged, and then gradually decrease.
2、冷卻離心風機小，冷卻風量不足。軸承箱沒有有效冷卻，軸承溫度會升高，比較簡單同時又節約廠用電解決方法是輪轂側軸承設置壓縮空氣冷卻，當溫度低時可以不開啟壓縮空氣冷卻，溫度高時開啟壓縮空氣冷卻。2. The cooling centrifugal fan is small, and the cooling air volume is insufficient. There is no effective cooling of the bearing box, the bearing temperature will increase, and the solution is simple at the same time, and the solution method is to set the compressed air cooling for the hub side bearing. When the temperature is low, the compressed air can not be opened, and the compressed air is cooled when the temperature is high.
3、確認不存在上述問題後再檢查軸常見的離心風機承箱
3, confirm that there is no such problem before checking common centrifugal fan bearing box.
辛苦整理！轉載請註明來自http://www.wxmlfj.com/faq/120.html