What is the reason for the loud noise of Roots blower? In depth analysis and solutions
As a widely used gas conveying equipment in the industrial field, the noise generated during the operation of Roots blower has always been a focus of attention for users. This article will deeply analyze the reasons for the high noise of Roots blowers and provide effective solutions to help you reduce noise and improve the working environment.
1、 The main reason for the high noise of Roots blower
1. * * Mechanical noise**
Mechanical noise is one of the main sources of noise in Roots blowers, mainly including:
-Gear noise: Poor gear meshing or wear can lead to increased noise.
-Bearing noise: Insufficient or damaged bearing lubrication can produce high-frequency noise.
-Unbalanced rotor: Improper manufacturing or installation of the rotor can cause vibration and noise.
2. * * Aerodynamic noise**
Aerodynamic noise is generated by gas flow, mainly including:
-* * Intake noise * *: Turbulent noise generated when gas enters the fan.
-Exhaust noise: The jet noise generated when gas is discharged from the fan.
-Eddy noise: Eddy noise generated when gas flows inside a fan.
3. * * Structural noise**
Structural noise is generated by the vibration of the fan casing, mainly including:
-Shell resonance: Improper design or insufficient material strength of the fan shell can lead to resonance noise.
-Pipeline vibration: Improper connection or insufficient support of the inlet and outlet ducts can generate vibration noise.
2、 Solution to reduce the noise of Roots blower
1. * * Optimize mechanical design**
-* * Improve gear accuracy * *: Adopt high-precision gears and optimized meshing design to reduce gear noise.
-Strengthen bearing maintenance: Regularly inspect and replace bearings to ensure good lubrication.
-* * Balanced rotor * *: During the manufacturing and installation process, ensure the dynamic balance of the rotor and reduce vibration and noise.
2. * * Improve aerodynamic design**
-* * Optimize intake and exhaust port design * *: Use mufflers or flow deflectors to reduce intake and exhaust noise.
-* * Reduce eddy current noise * *: Optimize impeller and shell design to reduce eddy current generation in gas flow.
3. * * Strengthen structural design**
-* * Increase shell stiffness * *: Using high-strength materials and reinforced rib design to reduce shell resonance.
-Vibration reduction measures: Install vibration reduction pads at the connection between the fan base and the pipeline to reduce vibration transmission.
3、 Case sharing
The Roots blower in a certain chemical plant produces excessive noise, which affects the working environment of workers. After inspection, it was found that the main reasons were gear wear and shell resonance. By replacing high-precision gears and adding reinforcement ribs to the housing, noise is significantly reduced and the working environment is improved.
summarize
The main reasons for the high noise of Roots blowers include mechanical noise, aerodynamic noise, and structural noise. By optimizing mechanical design, improving aerodynamic design, and enhancing structural design, noise can be effectively reduced and the working environment can be improved.
