羅茨鼓風機在使用中假如維護保養不可當，有可能會發生風機出現異常噪聲或是振動，減少風機的使用期限。傳動系統三角帶張松緊度不適合，導致皮帶打滑、過緊或是過松;調節三角帶支撐力。再次拆換滾動軸承，拆換軸承潤滑油。

　　羅茨鼓風機在使用中假如維護保養不可當，有可能會發生風機出現異常噪聲或是振動，減少風機的使用期限。為了防止此類情況發生，應當搞好風機的日常維護和查驗并紀錄。假如羅茨風機早已發生響聲出現異常或是振動，能夠依照下列各類逐一開展清查，并挑選相應措施解決困難。

　　1.傳動系統三角帶張松緊度不適合，導致皮帶打滑、過緊或是過松;調節三角帶支撐力。

　　2.風機皮帶輪或電動機皮帶輪歪斜，調節皮帶盤;皮帶盤和保護罩磨擦，調節傳動帶罩。

　　3.管路引起共鳴;根據消聲器和支撐架清除管路共鳴點;

　　4.羅茨風機減壓閥漏汽;調節減壓閥;

　　5.羅茨風機排氣壓力忽然升高，導致過壓，又可以分成下列幾種狀況。

　　A.閘閥關掉，必須充足開啟閘閥;

　　B.閘閥損壞或是閘閥擰反了方位，需要更換或是反向擰;

　　C.水位線過高，必須減少水位線;

　　D.進氣口或管路阻塞，必須消除臟物;

　　E.氣旋太強，必須減少轉速比或是排氣管。

　　6.機油欠缺或是衰老;再次換機油，必須220#中負載工業齒輪油。

　　7.軸承油(無鹽黃油)欠缺或是衰老，滾動軸承磨損嚴重;再次拆換滾動軸承，拆換軸承潤滑油。

　　8.翻轉軸承游隙超出標準值或帶座軸承損壞;替換滾動軸承或帶座軸承。

　　9.羅茨風機傳動齒輪側隙太大，不對中，固定不動太松;重新安裝傳動齒輪并保證側隙。

　　10.羅茨風機路基硬度不足;必須**路基抗壓強度;地腳螺絲以及他標準件松脫，扭緊地腳螺絲并校正基座。

　　11.葉輪和葉輪、葉輪和機殼碰撞導致異常響聲，風機振動，這種狀況又可以分成下述幾類狀況。

　　A.因為負載、軸形變導致葉輪撞擊;查驗背壓式，查驗葉輪是不是對中，必須拆卸維修，調整好空隙。

　　B.因為羅茨風機超溫，導致葉輪與機殼進口的處摩擦;查驗過濾裝置及背壓式，增加葉輪與機殼進口的處空隙。

　　C.因為結垢或臟東西使葉輪不平衡;清理葉輪與機殼，保證葉輪工作中空隙。

　　D.因為外來物和塵土導致葉輪與葉輪、葉輪與機殼碰撞;清理鼓風機，查驗機殼是不是毀壞。

　　根據之上這一系列對羅茨風機的查驗，主要能夠清除噪音大、風機響聲出現異常或風機振動的現象。

　If the roots blower is not properly maintained during use, abnormal noise or vibration may occur to the blower, reducing the service life of the blower. The tension of the V-belt of the transmission system is not appropriate, resulting in belt slipping, over tightening or over loosening; Adjust the support force of the V-belt. Remove and replace the rolling bearing again, and remove and replace the bearing lubricating oil.

　　If the roots blower is not properly maintained during use, abnormal noise or vibration may occur to the blower, reducing the service life of the blower. In order to prevent such cases, routine maintenance, inspection and records of the fan shall be made. If the roots blower has already had abnormal sound or vibration, it can be checked one by one according to the following types, and corresponding measures can be selected to solve the difficulties.

　　1. the tension of the V-belt of the transmission system is not appropriate, resulting in belt slipping, over tightening or over loosening; Adjust the support force of the V-belt.

　　2. if the fan pulley or motor pulley is skewed, adjust the pulley; Friction between the belt pulley and the protective cover, adjust the drive belt cover.

　　3. resonance caused by pipeline; Remove the resonance point of the pipeline according to the muffler and support frame;

　　4. the pressure reducing valve of Roots blower leaks steam; Adjust the pressure reducing valve;

　　5. the exhaust pressure of Roots blower rises suddenly, resulting in overpressure, which can be divided into the following conditions.

　　A. When the gate valve is closed, the gate valve must be fully opened;

　　B. The gate valve is damaged or the gate valve is screwed reversely, so it needs to be replaced or screwed reversely;

　　C. If the water level is too high, the water level must be reduced;

　　D. If the air inlet or pipeline is blocked, the dirt must be eliminated;

　　E. The cyclone is too strong, so the speed ratio or exhaust pipe must be reduced.

　　6. lack of engine oil or aging; The industrial gear oil must be loaded in 220\.

　　7. the bearing oil (salt free butter) is deficient or aging, and the rolling bearing is seriously worn; Remove and replace the rolling bearing again, and remove and replace the bearing lubricating oil.

　　8. the clearance of overturned bearing exceeds the standard value or the bearing with seat is damaged; Replace rolling bearings or bearings with seats.

　　9. the drive gear of Roots blower is too large and misaligned, and fixed too loosely; Reinstall the drive gear and ensure side clearance.

　　10. the subgrade hardness of Roots blower is insufficient; The subgrade compressive strength must be improved; The anchor screw and other standard parts are loose. Tighten the anchor screw and correct the base.

　　11. the collision between impeller and impeller, impeller and casing causes abnormal sound and fan vibration, which can be divided into the following categories.

　　A. Impeller impact due to load and shaft deformation; Check the back pressure type, check whether the impeller is aligned, dismantle it for maintenance, and adjust the clearance.

　　B. Due to the overheating of Roots blower, the friction between impeller and casing inlet is caused; Check the filter device and back pressure type, and increase the gap between the impeller and the inlet of the casing.

　　C. The impeller is unbalanced due to scaling or dirt; Clean the impeller and casing to ensure the clearance during the operation of the impeller.

　　D. Impeller and impeller, impeller and casing collide due to foreign objects and dust; Clean the blower and check whether the casing is damaged.

　　According to the above series of inspections of Roots blower, it is mainly able to eliminate the phenomena of high noise, abnormal fan sound or fan vibration.