Working principle and maintenance of Roots blower
Working principle of Roots blower
Roots blower is a type of positive displacement fan, which mainly relies on the relative motion of two blade rotors (usually three bladed impellers) in the cylinder to compress and transport gas. The following are the detailed steps of the working principle of Roots blower:
1. Impeller rotation: When the motor drives one of the impellers to rotate, the other impeller will rotate synchronously at the same speed and in the opposite direction through the action of the synchronous gear.
2. Gas suction and compression: Due to the gaps between impellers, impellers and casings, and impellers and wall panels, a vacuum state is formed at the inlet during the rotation of the impeller, and air is sucked into the inlet chamber under atmospheric pressure. As the impeller continues to rotate, two of the blades of each impeller form a sealed chamber with the wall panel and casing, and the air in the intake chamber is continuously carried to the exhaust chamber by the sealed chamber formed by these two blades. Also, because the impellers in the exhaust chamber are interlocked, the air between the two blades is squeezed out.
3. Gas exhaust: Through continuous inhalation and compression, air is continuously transported from the inlet to the outlet, completing the entire gas transportation process.
Roots blowers have the advantages of simple structure, easy manufacturing, low vibration, low noise, long-lasting performance, long-term continuous operation, high volume utilization rate, high volume efficiency, compact structure, and flexible installation methods. They are widely used in various fields such as aquaculture oxygenation, sewage treatment aeration, cement conveying, pneumatic conveying, flue gas desulfurization and denitrification, ventilation, etc.
Maintenance of Roots blower
In order to extend the service life and improve the stability of Roots blowers, regular maintenance and upkeep are necessary. Here are some key maintenance steps and precautions:
1. Regular cleaning: Regularly clean the fan room, maintain a clean environment and good ventilation, and prevent impurities such as dust and moisture from entering the interior of the fan. At the same time, regularly clean the casing, air inlet, and air outlet of the Roots blower to prevent dust accumulation from affecting heat dissipation and ventilation efficiency.
2. Filter replacement: Regularly clean or replace the filter to prevent dust and impurities from entering the interior of the blower, ensuring the normal operation of the machine.
3. Lubrication: According to the manufacturer's recommendations, regularly lubricate the bearings, gears, and other components of the Roots blower to ensure smooth machine operation. Rolling bearings need to be lubricated once a week, while shaft sealing devices need to be regularly oiled to ensure sealing effectiveness.
4. Tightening inspection: Regularly inspect the fastening of various parts of the Roots blower, including bolts, nuts, locating pins, etc., to prevent malfunctions caused by looseness. Pay special attention to the fastening of key parts such as bearing seats and couplings to ensure their stability and reliability.
5. Testing: Regular performance and operational status testing of Roots blowers, including measurement and calibration of parameters such as pressure, flow rate, temperature, and vibration. By detecting and resolving potential problems in a timely manner, we can prevent the occurrence of malfunctions.
6. Reasonable use: Strictly follow the user manual of the Roots blower to avoid overloading and operation. Pay attention to monitoring the temperature and vibration of the fan during operation to ensure that it is within the normal range.
7. Environmental improvement: Improve the working environment of Roots blower as much as possible, reduce the impact of adverse factors such as high or low temperature, pressure, flow rate, etc. on the blower.
8. Training: Ensure that the users have relevant operational skills and knowledge, understand the working principle and common troubleshooting methods of Roots blowers. Regularly train and enhance operators to improve their maintenance and emergency response capabilities.
In addition, in the event of a malfunction or performance degradation of the Roots blower, timely maintenance and replacement of damaged components should be carried out. During maintenance, the manufacturer's maintenance manual and instructions should be followed to ensure the quality of the repair.
In summary, through regular maintenance and upkeep, reasonable operation and use, training and improvement of operational skills, as well as timely repair and replacement measures, the service life of Roots blowers can be effectively extended, and their stability and reliability can be improved.
