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After-sale Service
Daily maintenance and upkeep of Shandong Roots blower manufacturers
Release time:
2016-09-12
Conduct a comprehensive inspection of all components of the wind turbine, checking whether the parts are complete, the tightness of the connections of each bolt and nut, the installation quality of all fasteners and locating pins, and the installation quality of the intake and exhaust pipelines and valves.
1. The fan should not be installed in areas frequently accessed by people to prevent injuries and burns.
2. The fan should not be installed in places where flammable, explosive, and corrosive gases may be generated to prevent fires and poisoning accidents.
3. According to the direction of the intake and exhaust ports and maintenance needs, there should be adequate space around the foundation.
4. When installing the fan, check whether the foundation is solid, whether the surface is flat, and whether the foundation is elevated above the ground.
5. When configuring the fan outdoors, a rain shelter should be installed.
6. The fan can be used for a long time in an environment with a temperature not exceeding 40°C. If it exceeds 40°C, cooling measures such as exhaust fans should be installed to extend the fan's lifespan.
7. When conveying air media, the dust content should generally not exceed 100mg/m3.
8. Operating precautions
• A comprehensive inspection of all components of the fan should be conducted, checking whether the parts are complete, the tightness of each bolt and nut, the installation quality of all fasteners and locating pins, and the installation quality of the intake and exhaust pipelines and valves.
• To ensure the safe operation of the blower, external loads such as pipelines, valves, and frames are not allowed.
• Check the alignment and centering quality of the blower and the motor.
• Check whether the base of the unit is fully supported and whether the anchor bolts are tightened.
• Inject the specified grade of mechanical oil into the oil tank up to the oil level line, with the lubricant grade being N220 medium load working gear oil.
• Check whether the motor's rotation direction meets the directional requirements.
• A belt cover (guard) should be installed at the pulley (coupling) to ensure safe operation.
• Fully open the intake and exhaust valves of the blower, rotate the fan rotor, it should rotate smoothly without impact or friction, and only after confirming everything is normal can the fan be started for trial operation.
9. Empty load trial operation of the blower
• Newly installed or overhauled fans should undergo an empty load trial operation.
• The concept of empty load operation for the Roots blower is: operating under the condition that the intake and exhaust valves are fully open.
• There should be no abnormal odors, smoke, or collision or friction sounds, and the radial vibration speed at the bearing should not exceed 6.3mm/s.
• Run under empty load for about 30 minutes; if the situation is normal, it can be put into load operation. If any abnormal operation is found, it should be checked and eliminated, and then an empty load trial operation should be performed again.
10. Normal load continuous operation of the blower.
• It is required to gradually and slowly adjust the load until the rated load is reached; it is not allowed to adjust directly to the rated load at once.
• The so-called rated load refers to the static pressure difference between the intake and exhaust ports, according to the pressure value marked on the nameplate. Under normal exhaust pressure conditions, attention should be paid to the pressure changes at the intake to avoid overload.
• During normal operation of the fan, it is strictly prohibited to completely close the intake and exhaust valves. Regular observation of pressure conditions is required, and whether the safety valve operates to exhaust during overload; otherwise, the safety valve should be adjusted in time, and overload operation is not allowed.
• Due to the characteristics of the Roots blower, it is not allowed to let the exhaust gas flow back directly into the intake port for a long time (changing the temperature of the intake port), otherwise, it will affect the safety of the machine. If backflow adjustment is needed, cooling measures must be taken.
• Regularly check the oil level position of the lubricant, conduct periodic inspections, and keep records to ensure oil quantity.
11. Stopping
The blower should not be suddenly stopped under full load; it must gradually unload before stopping to avoid damaging the machine. Regarding emergency stop principles, users can formulate their own detailed rules.
12. The safe operation and service life of the blower depend on correct and regular maintenance and care, and attention should be paid to any signs of accidents. In addition to general maintenance procedures, the following points should be emphasized.
• Check the fastening conditions of each part and whether the locating pins are loose.
• There should be no oil leakage inside the blower body.
• There should be no scaling, rust, or peeling inside the blower body.
• Pay attention to whether lubrication and heat dissipation are normal, check the quality of the lubricant, frequently listen for any unusual noises during blower operation, ensure the unit is not operating under non-compliant conditions, and regularly add grease.
• Overloading of the blower may not be immediately apparent, so attention should be paid to the trends in intake and exhaust pressure, bearing temperature, and motor current to determine whether the machine is operating normally.
• Before disassembling the machine, measure the fit sizes of each part, keep records, and mark the components to ensure that the original fit requirements are maintained after assembly.
• For new machines or those overhauled, the oil tank should be cleaned, and the operation should be carried out according to the usage steps. It is recommended to replace all lubricating oil after running for 8 hours.
• Maintenance and repair should be based on specific usage conditions to formulate a reasonable maintenance system, conduct periodic maintenance, and keep records. It is recommended to overhaul once a year and replace bearings and related wear parts.
• Major repairs of the blower are recommended to be carried out by this company or professional maintenance personnel.
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No. 1-3, West First Road North, Fenghuangshan Industrial Park, Puji Street, Zhangqiu District, Jinan City, Shandong Province
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