回转式风机，涵盖罗茨风机、螺杆风机、滑片风机等多种类型，在长期连续运行过程中，受多种因素影响，极易出现各类故障，进而对其性能表现和使用寿命造成显著影响。以下将对常见故障问题进行系统性梳理，并深入剖析其产生原因，同时针对性地提出有效解决方法。

Rotary fans, including Roots fans, screw fans, slide fans, and other types, are prone to various failures due to various factors during long-term continuous operation, which can significantly affect their performance and service life. The following will systematically sort out common fault problems, analyze their causes in depth, and propose targeted and effective solutions.

在风量不足或压力下降方面，故障成因呈现多元化特点。进气滤网因灰尘、杂质不断积累，逐渐堵塞，严重阻碍进气通道的顺畅性，致使进气量大幅减少；叶轮或转子在长期运转过程中持续磨损，导致其与壳体之间的间隙不断增大，引发内部泄漏加剧，从而削弱风机的送气能力；系统中管道、法兰或密封部位出现漏气情况，使得本该输出的气体逸散，造成压力下降；对于皮带传动型风机而言，皮带或联轴器因张紧力不足，或是长期使用产生磨损，出现打滑现象，影响动力传输效率，最终导致风量和压力无法达到正常水平。针对这些问题，相应的解决措施为定期清洁或更换进气滤网，建议每 3 个月进行一次细致检查，及时清除堵塞物以保障进气通畅；对转子与壳体之间的间隙进行精确检测，一旦发现间隙超标，需及时对转子进行修复处理，若磨损严重则应果断更换转子；采用肥皂水涂抹的方式对系统各部位进行漏气点检测，发现漏气后，及时紧固法兰螺栓，或更换密封性能良好的垫片；严格按照厂家制定的标准，对皮带张力进行精准调整，若皮带磨损严重则需及时更换新皮带，确保动力传输稳定高效。

In terms of insufficient air volume or pressure drop, the causes of faults exhibit diverse characteristics. The intake filter screen gradually becomes clogged due to the accumulation of dust and impurities, seriously hindering the smoothness of the intake passage and resulting in a significant reduction in intake volume; The continuous wear of impellers or rotors during long-term operation leads to an increasing gap between them and the casing, which exacerbates internal leakage and weakens the air supply capacity of the fan; Leakage occurs in pipelines, flanges, or sealing parts of the system, causing the gas that should have been output to escape and resulting in a pressure drop; For belt driven fans, the belt or coupling may slip due to insufficient tension or long-term use, affecting power transmission efficiency and ultimately leading to abnormal air volume and pressure. The corresponding solution to these problems is to regularly clean or replace the intake filter screen. It is recommended to conduct a detailed inspection every 3 months and promptly remove blockages to ensure smooth intake; Accurately detect the gap between the rotor and the housing. Once the gap exceeds the standard, the rotor should be repaired in a timely manner. If the wear is severe, the rotor should be replaced promptly; Use soapy water to detect air leaks in various parts of the system. If any leaks are found, tighten the flange bolts in a timely manner or replace gaskets with good sealing performance; Strictly follow the standards set by the manufacturer to accurately adjust the belt tension. If the belt is severely worn, it needs to be replaced with a new belt in a timely manner to ensure stable and efficient power transmission.

风机出现过热，即轴承或壳体温度过高的情况，其根源主要涉及多个关键环节。润滑油不足或劣化是重要诱因，油位过低无法提供充足润滑，油品老化后其润滑性能显著下降，均会导致部件间摩擦加剧，产生大量热量；对于水冷型风机，冷却系统故障是导致过热的直接原因，冷却水流量不足或管道堵塞，无法及时带走运行过程中产生的热量，致使温度持续攀升；过载运行同样不容忽视，当系统阻力过大，或者排气压力超出风机额定工作压力时，风机长时间处于超负荷运转状态，必然会产生过多热量；轴承损坏也是常见因素，因润滑不良或长期疲劳磨损，导致轴承出现卡滞现象，加剧摩擦，进而引发过热。针对这些问题，有效的解决办法包括定期检查油位，及时补充润滑油，为保障良好的润滑效果，推荐使用 ISO VG 220 齿轮油；对水冷型风机的冷却器进行全面清理，仔细检查整个冷却水系统，确保冷却水流量达到或超过 2m³/h，以维持良好的散热性能；通过合理调整工况，加装安全阀或采用变频控制等技术手段，避免风机超压运行，确保其在安全、高效的工作区间内运转；当轴承出现损坏时，及时更换耐高温、性能优良的轴承，建议选用 SKF、NSK 等知名品牌产品，以提升风机运行的稳定性和可靠性。

The overheating of the fan, that is, the high temperature of the bearings or housing, is mainly caused by multiple key links. Insufficient or deteriorated lubricating oil is an important cause. If the oil level is too low to provide sufficient lubrication, the lubrication performance of the oil will significantly decrease after aging, which will lead to increased friction between components and generate a large amount of heat; For water-cooled fans, cooling system failure is the direct cause of overheating. Insufficient cooling water flow or pipeline blockage prevents timely removal of heat generated during operation, resulting in continuous temperature rise; Overload operation cannot be ignored either. When the system resistance is too high or the exhaust pressure exceeds the rated working pressure of the fan, the fan will be in an overloaded state for a long time, which will inevitably generate excessive heat; Bearing damage is also a common factor, as poor lubrication or long-term fatigue wear can lead to bearing jamming, exacerbating friction and ultimately causing overheating. Effective solutions to these issues include regularly checking the oil level and replenishing lubricating oil in a timely manner. To ensure good lubrication, it is recommended to use ISO VG 220 gear oil; Thoroughly clean the cooler of the water-cooled fan, carefully inspect the entire cooling water system, and ensure that the cooling water flow rate reaches or exceeds 2m ³/h to maintain good heat dissipation performance; By adjusting the working conditions reasonably, installing safety valves or using frequency conversion control and other technical means, the fan can avoid overpressure operation and ensure its safe and efficient operation within the working range; When the bearing is damaged, it is recommended to replace it with a high-temperature resistant and high-performance bearing in a timely manner. It is suggested to choose well-known brands such as SKF and NSK to improve the stability and reliability of the fan operation.

异常振动或噪音大是回转式风机运行过程中较为常见且危害较大的故障。其产生原因主要集中在多个核心部件和安装环节。转子动平衡失效是关键因素，叶轮表面粘附杂质，或是因腐蚀导致质量分布不均，破坏了转子的平衡状态，在高速旋转时引发剧烈振动和噪音；联轴器或皮带轮安装过程中存在偏差，当偏差超过 0.05mm/m 时，会导致传动过程中受力不均，产生振动和异常噪音；地脚螺栓在长期振动作用下逐渐松动，使得风机固定不牢，运行时产生晃动，进而引发振动和噪音；对于罗茨风机而言，同步齿轮磨损后，齿轮啮合不良，在运转过程中产生强烈冲击，形成明显的噪音。针对这些故障原因，对应的解决方案为对转子进行彻底清洁，并重新进行精确的动平衡校准，将不平衡量严格控制在≤1g 的范围内，确保转子运转平稳；运用激光对中仪对联轴器同心度进行精准校正，将偏差调整至 ±0.02mm，保证传动部件的安装精度；及时紧固地脚螺栓，为进一步增强稳定性，必要时可加装减震垫，减少振动传递；对齿轮磨损情况进行细致检查，若磨损程度严重，则需及时更换齿轮组，恢复风机的正常运行状态。

Abnormal vibration or loud noise are common and harmful faults in the operation of rotary fans. The main reasons for its occurrence are concentrated in multiple core components and installation stages. The failure of rotor dynamic balance is a key factor. Impurities adhering to the impeller surface or uneven mass distribution due to corrosion can disrupt the balance state of the rotor, causing severe vibration and noise during high-speed rotation; There may be deviations during the installation of couplings or pulleys. When the deviation exceeds 0.05mm/m, it can cause uneven force distribution during the transmission process, resulting in vibration and abnormal noise; The foundation bolts gradually loosen under long-term vibration, causing the fan to be loosely fixed and shaking during operation, which in turn leads to vibration and noise; For Roots blowers, after the synchronous gear wears out, the gear meshing is poor, resulting in strong impact and significant noise during operation. The corresponding solution for these fault causes is to thoroughly clean the rotor and perform precise dynamic balance calibration again, strictly controlling the unbalance within the range of ≤ 1g to ensure smooth operation of the rotor; Using laser to accurately calibrate the concentricity of the coupling device, adjusting the deviation to ± 0.02mm to ensure the installation accuracy of the transmission components; Timely tighten the anchor bolts, and if necessary, install shock-absorbing pads to further enhance stability and reduce vibration transmission; Conduct a detailed inspection of gear wear, and if the wear is severe, replace the gear set in a timely manner to restore the normal operation of the fan.

漏油问题多发生于齿轮箱或轴封部位，其背后存在多种潜在原因。油封在长期高温环境或持续运行过程中，逐渐老化，橡胶密封材质硬化、开裂，失去密封效果，导致润滑油泄漏；油位过高会使齿轮箱内部油压过大，多余的油液便会从呼吸阀渗出；轴封部位因长期与密封件摩擦，导致轴表面出现磨损沟槽，使得密封失效，引发漏油现象。针对这些问题，有效的解决措施为更换性能优良的油封，推荐采用氟橡胶或聚四氟乙烯材质的油封，以提升密封性能和使用寿命；在风机运行状态下，通过观察油窗，将油位调整至标准线位置，确保齿轮箱内油压正常；对于磨损的轴套，可根据实际情况进行修复处理，如采用镀铬工艺恢复轴的表面精度，若磨损严重则需及时更换新轴，从根本上解决漏油问题。

Oil leakage problems often occur in gearboxes or shaft seals, and there are multiple potential causes behind them. Oil seals gradually age in long-term high-temperature environments or continuous operation, causing rubber sealing materials to harden and crack, losing their sealing effect and leading to lubricant leakage; Excessive oil level will cause excessive oil pressure inside the gearbox, and excess oil will seep out from the breather valve; Due to long-term friction with the sealing components, the shaft seal has developed wear grooves on the surface, resulting in seal failure and oil leakage. To address these issues, an effective solution is to replace high-performance oil seals. It is recommended to use oil seals made of fluororubber or polytetrafluoroethylene material to improve sealing performance and service life; When the fan is running, adjust the oil level to the standard line position by observing the oil window to ensure that the oil pressure inside the gearbox is normal; For worn shaft sleeves, repair treatment can be carried out according to the actual situation, such as using chrome plating technology to restore the surface accuracy of the shaft. If the wear is severe, a new shaft needs to be replaced in a timely manner to fundamentally solve the oil leakage problem.

电机过载跳闸故障的产生，通常由以下几方面原因导致。电压不稳定是常见因素，当电网电压波动幅度超过 ±10% 时，会对电机正常运行产生严重影响，导致其过载跳闸；进口阻力过大，如滤网堵塞未及时清理，或是阀门未完全打开，会增加风机的运行负荷，迫使电机过载；风机内部出现卡滞情况，可能是异物意外进入风机内部，或是轴承损坏等原因，阻碍风机正常运转，进而引发电机过载跳闸。针对这些问题，相应的解决办法包括在电路中加装稳压器，或对整个供电线路进行全面检查，确保电压稳定在合理范围内；及时清理进口管道内的堵塞物，仔细检查并确保阀门处于完全打开状态，降低进气阻力；通过手动盘车的方式对风机进行检查，逐一排查并及时排除卡死故障，保障风机能够顺畅运行，避免电机因过载而跳闸 。

The occurrence of motor overload tripping faults is usually caused by the following reasons. Voltage instability is a common factor, and when the voltage fluctuation of the power grid exceeds ± 10%, it will have a serious impact on the normal operation of the motor, leading to overload tripping; Excessive import resistance, such as clogged filter screens that are not cleaned in a timely manner or valves that are not fully opened, can increase the operating load of the fan and force the motor to overload; If there is a stuck situation inside the fan, it may be due to foreign objects accidentally entering the fan or bearing damage, which hinders the normal operation of the fan and causes the motor to overload and trip. The corresponding solutions to these problems include installing voltage regulators in the circuit or conducting a comprehensive inspection of the entire power supply line to ensure that the voltage is stable within a reasonable range; Timely clean up the blockages in the inlet pipeline, carefully inspect and ensure that the valve is fully open, and reduce the intake resistance; By manually turning the fan, check and promptly eliminate any stuck faults, ensuring smooth operation of the fan and avoiding motor tripping due to overload.

本文由回转式风机友情奉献.更多有关的知识请点击:http://www.xinluquansheng.com我们将会对您提出的疑问进行详细的解答，欢迎您登录网站留言.

This article is a friendly contribution from the pneumatic conveying system For more information, please click: http://www.xinluquansheng.com We will provide detailed answers to your questions. You are welcome to log in to our website and leave a message