罗茨风机常见故障及处理措施罗茨风机使用中常出现风机风量不足、电机超载、过热、异响、无法正常启动及振动大等故障，学会分析常见故障原因并了解相应的处理措施。

　　罗茨风机在日常使用过程中，难免会发生故障，了解罗茨风机常见故障、分析风机故障原因，才能知道怎么去处理或维修罗茨风机故障。

　　一、罗茨风机风量不足

　　风机风量不足是罗茨风机常见故障，发生故障后可检查风机皮带是否打滑掉转;罗茨风机间隙是否增大;风机进口阻力是否增大。当我们分析出故障原因后，可通过调整罗茨风机皮带张力、调整间隙、清洗风机过滤器，来恢复罗茨风机风量。

　　罗茨风机常见故障流量不足原因和解决方法：

　　1)进口过滤堵塞——清除过滤器的灰尘和堵塞物;

　　2)叶轮磨损，间隙增大得太多——修复间隙;

　　3)皮带打滑——拉紧皮带并增加根数;

　　4)进口压力损失大——调整进口压力达到规定值;

　　5)管道造成通风泄漏——检查并修复管道。

　　二、电机超载

　　当罗茨风机出现电机超载故障时，我们可以排查罗茨风机过滤网是否堵塞负荷大;风机实际运行压力是否超过出厂铭牌时标定的额定工作压力，检查叶轮与气缸摩擦是否异常;我们可以通过清洗过滤器，控制实际压力以及调整间隙来降低风机过载，处理罗茨风机电机超载现象。

　　罗茨风机常见故障电机超载原因和解决方法：

　　1)与规定压力相比，压差大，即背压或进口压力大;——降低压力到规定值;

　　2)与设备要求的流量相比，风机流量太大，因而压力增大——将多余气体排放出去或降低鼓风机转速;

　　3)进口过滤堵塞，出口管道障碍或堵塞——清除障碍物;

　　4)转动部件相碰和摩擦卡住——立即停机，检查原因;

　　5)油位太高——将油位调到正确位置。

　　6)窄V型皮带过热，振动过大，皮带轮过小——调整皮带轮尺寸。

　　三、罗茨风机过热

　　当罗茨风机发生过热故障时，可检查罗茨风机油箱是否冷却不良;风机转子和气缸壁摩擦是否异常;是否升压太大，润滑油是否添加过量;我们可以通过检查冷却水或油量，调整间隙，检查吸入和排出压力，同时控制油量的措施来处理罗茨风机过热故障。对于温度相对较高的工况环境下，为了保证风机的运转稳定可靠，可选择使用水冷式罗茨鼓风机。

　　罗茨风机常见故障温度过高原因和解决方法：

　　1)油箱内油太多、太稠、太脏——降低油位或换油;

　　2)过滤器或消声器堵塞——清除堵物;

　　3)压力高于规定值——降低通过鼓风机的压差;

　　4)叶轮过度磨损，间隙大——修复间隙;

　　5)通风不好，室内温度高，造成进口温度高——开设通风口，降低室温;

　　6)运转速度太低，皮带打滑——加大转速，防止皮带打滑。

　　四、罗茨风机异响

　　当罗茨风机发生异响故障时，应检查可调齿轮和转子的位置是否失调，检查轴承磨损是否严重，齿轮是否损伤。我们可通过按规定位置校正并锁紧，更换罗茨风机轴承，更换设备齿轮等措施来处理罗茨风机异响故障。

　　罗茨风机常见故障叶轮与叶轮摩擦原因和解决方法：

　　1)叶轮上有污染杂质，造成间隙过小——清除污物，并检查内件有无损坏;

　　2)齿轮磨损，造成侧隙大——调整齿轮间隙，若齿轮侧隙大于平均值30%～50%应更换齿轮;

　　3)齿轮固定不牢，不能保持叶轮同步——重新装配齿轮，保持锥度 配合接触面积达75%;

　　4)轴承磨损致使游隙增大——更换轴承。

　　五、罗茨风机无法正常启动

　　当罗茨风机设备发生无法正常启动故障时，可检查进排气口是否堵塞或阀门是否未打开，电气是否出现问题;我们可以通过清理或打开风机阀门、检修风机电气来处理罗茨风机无法正常启动故障。友情提示：很多罗茨风机无法正常启动是因为齿轮油不足造成同步齿轮卡死了哦！

　　罗茨风机常见故障风机漏油或油泄露到机壳中的原因和解决方法：

　　1)油箱位太高，由排油口漏出——降低油位;

　　2)密封磨损，造成轴端漏油——更换密封;

　　3)压力高于规定值——降低压力到规定值;

　　4)墙板和油箱的通风口堵塞，造成油泄漏到机壳中——疏通通风口，中间腔装上具有2mm孔径的旋塞，打开墙板下的旋塞。

　　六、罗茨风机振动大

　　应检查罗茨风机基本是否稳固，对轮是否赵正，轴承磨损是否异常。我们可通过对罗茨风机进行加固、紧固，找正对轮，更换轴承来处理罗茨风机振动大的故障。

　　罗茨风机常见故障异常或者振动原因和解决方法：

　　1)滚动轴承游隙超过规定值或轴承座磨损——更换轴承或轴承座;

　　2)齿轮侧隙过大，不对中，固定不紧——重装齿轮并确保侧隙;

　　3)由于外来物和灰尘造成叶轮与叶轮、叶轮与机壳撞击——清洗鼓风机，检查机壳是否损坏;

　　4) 由于过载、轴变形造成叶轮碰撞——检查背压，检查叶轮是否对中，并调整好间隙;

　　5) 由于过热造成叶轮与机壳进口处磨擦——检查过滤器及背压，加大叶轮与机壳进口处间隙;

　　6) 由于积垢或异物使叶轮失去平衡——清洗叶轮与机壳，确保叶轮工作间隙;

　　7) 地脚螺栓及其他紧固件松动——拧紧地脚螺栓并调平底座。

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　　Common faults and treatment measures of Roots blower in use, roots blower often has faults such as insufficient fan air volume, motor overload, overheating, abnormal noise, unable to start normally and large vibration. Learn to analyze the causes of common faults and understand the corresponding treatment measures.

　　Roots blower will inevitably break down in the process of daily use. Only by understanding the common faults of Roots blower and analyzing the causes of fan faults can we know how to deal with or repair roots blower faults.

　　1、 Insufficient air volume of Roots blower

　　Insufficient air volume of the fan is a common fault of Roots fan. After the fault occurs, check whether the fan belt slips and rotates; Whether the clearance of Roots blower increases; Whether the inlet resistance of the fan increases. After we analyze the cause of the fault, we can restore the air volume of Roots blower by adjusting the belt tension of Roots blower, adjusting the gap, and cleaning the blower filter.

　　Reasons and solutions for insufficient flow of Roots blower:

　　1) Inlet filter blockage - remove the dust and blockage of the filter;

　　2) The impeller is worn and the clearance is increased too much - repair the clearance;

　　3) Belt slipping - tighten the belt and increase the number;

　　4) Large inlet pressure loss - adjust the inlet pressure to the specified value;

　　5) Ventilation leakage caused by the pipe - check and repair the pipe.

　　2、 Motor overload

　　In case of motor overload fault of Roots blower, we can check whether the filter screen of Roots blower is blocked and loaded; Whether the actual operating pressure of the fan exceeds the rated working pressure calibrated on the factory nameplate, and check whether the friction between the impeller and the cylinder is abnormal; We can reduce the fan overload by cleaning the filter, controlling the actual pressure and adjusting the clearance, and deal with the overload of Roots blower motor.

　　Causes and solutions of motor overload:

　　1) Compared with the specified pressure, the pressure difference is large, that is, the back pressure or inlet pressure is large—— Reduce the pressure to the specified value;

　　2) Compared with the flow required by the equipment, the fan flow is too large, so the pressure increases - discharge the excess gas or reduce the blower speed;

　　3) The inlet filtration is blocked, and the outlet pipeline is blocked or blocked - remove the obstacles;

　　4) Collision and friction of rotating parts - stop the machine immediately and check the cause;

　　5) The oil level is too high - adjust the oil level to the correct position.

　　6) The narrow V-belt is overheated, the vibration is too large, and the pulley is too small - adjust the pulley size.

　　3、 Roots blower overheating

　　When the roots blower overheats, check whether the oil tank of the roots blower has poor cooling; Whether the friction between the fan rotor and the cylinder wall is abnormal; Whether the pressure rise is too high and whether the lubricating oil is added too much; We can deal with the overheating fault of Roots blower by checking the cooling water or oil volume, adjusting the clearance, checking the suction and discharge pressure, and controlling the oil volume at the same time. For working conditions with relatively high temperature, in order to ensure the stable and reliable operation of the fan, water-cooled roots blower can be selected.

　　Causes and solutions of high temperature of Roots blower:

　　1) The oil in the oil tank is too much, too thick, and too dirty - reduce the oil level or change the oil;

　　2) Filter or muffler blockage - remove the blockage;

　　3) Pressure higher than the specified value - reduce the differential pressure through the blower;

　　4) The impeller is excessively worn and the clearance is large - repair the clearance;

　　5) Poor ventilation, high indoor temperature, resulting in high inlet temperature - Open vents to reduce room temperature;

　　6) The running speed is too low and the belt slips - increase the speed to prevent the belt from slipping.

　　4、 Abnormal noise of Roots blower

　　In case of abnormal sound fault of Roots blower, check whether the position of adjustable gear and rotor is misadjusted, whether the bearing is seriously worn and whether the gear is damaged. We can deal with the abnormal sound fault of Roots blower by correcting and locking according to the specified position, replacing the bearings of Roots blower and replacing the gears of equipment.

　　Causes and solutions of impeller impeller friction:

　　1) There are pollutants and impurities on the impeller, resulting in too small clearance - remove the dirt and check whether the internals are damaged;

　　2) Gear wear, resulting in large side clearance - adjust the gear clearance. If the gear side clearance is greater than 30% - 50% of the average value, replace the gear;

　　3) The gear is not fixed firmly, and the impeller cannot be kept synchronized - reassemble the gear, and keep the taper fit contact area up to 75%;

　　4) Bearing wear increases the clearance - replace the bearing.

　　5、 Roots blower fails to start normally

　　When the roots blower fails to start normally, check whether the air inlet and exhaust ports are blocked, whether the valves are not opened, and whether there are electrical problems; We can deal with the failure of Roots blower to start normally by cleaning or opening the blower valve and overhauling the blower electrical. Tips: many roots blowers fail to start normally because the synchronous gear is stuck due to insufficient gear oil!

　　Causes and solutions of fan oil leakage or oil leakage into the casing:

　　1) The oil tank is too high and leaks through the oil drain - reduce the oil level;

　　2) The seal is worn, causing oil leakage at the shaft end - replace the seal;

　　3) Pressure higher than the specified value - reduce the pressure to the specified value;

　　4) The air vent of the wall panel and the oil tank is blocked, causing oil leakage into the chassis - dredge the air vent, install a cock with 2mm aperture in the middle chamber, and open the cock under the wall panel.

　　6、 Roots blower has large vibration

　　Check whether the roots blower is basically stable, whether the coupling is Zhao Zheng, and whether the bearing wear is abnormal. We can deal with the fault of large vibration of Roots blower by strengthening and fastening roots blower, aligning the opposite wheel and replacing the bearing.

　　Roots blower abnormal or vibration causes and solutions:

　　1) The clearance of rolling bearing exceeds the specified value or the bearing seat is worn - replace the bearing or bearing seat;

　　2) The side clearance of the gear is too large, misaligned, and the fixing is not tight - reinstall the gear and ensure the side clearance;

　　3) Impact between impeller and impeller, impeller and casing caused by foreign objects and dust - clean the blower and check whether the casing is damaged;

　　4) Impeller collision due to overload and shaft deformation - check the back pressure, check whether the impeller is centered, and adjust the clearance;

　　5) Friction between impeller and casing inlet caused by overheating - check the filter and back pressure, and increase the clearance between impeller and casing inlet;

　　6) The impeller is out of balance due to dirt or foreign matters - clean the impeller and casing to ensure the working clearance of the impeller;

　　7) Anchor bolts and other fasteners are loose - tighten the anchor bolts and level the base.

　　Common faults and treatment measures of Roots blower Shanghai Ruizhe environmental protection produces and sells all kinds of Roots blower, roots vacuum pump, fountain aerator equipment, undertakes pneumatic conveying system engineering, water pollution control aeration engineering, aquaculture oxygenation engineering, and produces and sells all kinds of sewage treatment pumps, centrifugal pumps, slurry pumps, etc. If there are some maintenance problems in the fault you encounter, for example: there are no replacement parts for the imported roots blower! You can contact us Shanghai Ruizhe. As a Roots blower manufacturer, we not only produce and sell roots blowers, but also undertake the repair, door-to-door maintenance and other businesses of various types of Roots blowers!