Daily maintenance and maintenance of magnetic suspension blower

The daily maintenance of magnetic suspension blower mainly includes the following aspects:

Appearance and installation environment inspection

Cleaning: regularly clean the dust, oil stains and other impurities on the surface of the fan. Wipe the fan shell with a clean soft cloth, and focus on cleaning the air inlet and air outlet to prevent foreign objects from entering. Brush can be used to sweep away dust and small particles.

Environmental temperature and humidity: ensure that the temperature of the fan installation site is between 0-40 degrees Celsius and the humidity is appropriate, so as to avoid that the performance of the motor is affected by too high temperature or the electrical components are affected by too high humidity.

Inspection of installation foundation: check whether the installation foundation is firm, and vibration during the operation of the fan may cause the fan with weak foundation to shift, resulting in loose pipe connection and other problems, and at the same time ensure sufficient surrounding space and good ventilation.

Electrical system maintenance

Connection inspection: check the electrical connection parts such as wire connectors, plugs and sockets regularly to ensure that there is no looseness or oxidation in fastening. If the oxidation of connectors is found, professional cleaners and tools can be used to clean and fasten them.

Inspection of electrical components: check the working status of electrical components such as frequency converter and controller, check whether there is fault code on the display screen of frequency converter, record the operating parameters and compare them with the normal range, and regularly clean the dust in the electrical control cabinet with compressed air tank or small vacuum cleaner.

Mechanical parts inspection

Impeller inspection: check whether the impeller is worn, deformed or cracked. Dismantle some pipes regularly, visually check with a flashlight, and check whether the fastening bolts of the impeller are loose. Tighten them with a torque wrench according to the specified torque value.

Bearing inspection: check whether the monitoring parameters of magnetic suspension bearings, such as suspension force and displacement, are normal, and check the bearing cooling system to ensure smooth pipelines and normal coolant flow and temperature.

Seal inspection: check the seal parts such as shaft seal and casing seal of the fan to prevent gas leakage. If there is leakage at the seal, first check whether the seal is damaged or aging. If there is slight leakage, adjust or tighten the mounting bolt of the seal, and if it is seriously damaged, it needs to be replaced.

Monitoring and recording of operation parameters

Parameter recording: Regularly record the operating parameters such as air volume, wind pressure, speed, current and voltage, compare the parameters in different periods, find out the performance changes of the fan in time, record the operating time and arrange the maintenance cycle reasonably.

Performance evaluation: according to the recorded parameters, use professional evaluation software or performance curve to evaluate the performance of the fan, and judge whether it is in the best working state. When the performance drops obviously, it needs to be comprehensively inspected and repaired.

Filter maintenance

Generally, the primary filter cotton is replaced once a month, and the intermediate filter is replaced once every 2-3 months, depending on the local air dust content, or the filter material can be replaced in time according to the pressure difference system parameters.