Principle and structure of Roots blower with mechanical seal:

Principle of Roots blower with mechanical seal

Mechanical seal is a shaft sealing device that resists leakage through one or several pairs of sliding end faces relative to the shaft under the action of fluid pressure and elastic force (or magnetic force) of compensation mechanism.

When Roots blower of mechanical seal works, the axial force generated by the pressure of seal fluid and the elastic force of elastic element makes the moving ring and fixed ring stick to each other and produce relative motion. Due to the close fit of the two sealing faces, a small gap is formed at the boundary (sealing interface) between the sealing faces. The pressurized medium will form a very thin liquid film through the gap and then generate resistance, so as to prevent the leakage of the medium and further lubricate the end face with the liquid film, thus obtaining long-term sealing effect.

Whenever the blower gas or methane gas is pressed, the mechanical seal Roots blower is usually made into a closed bearing housing, and a group of glands are used to seal the shaft at its penetration part. If hydrogen is pumped, it can be mechanically sealed by using Roots blower equipment. Mechanical design seals, also called end seals, are designed to limit the devices that manage the working environment and fluid leakage along the shaft. Now it seems that the mechanical system sealing technology in China is safe and reliable in operation, with small leakage and long service life. And the mechanical seal roots blower has automatic end face wear compensation, so there is no need for frequent maintenance. Its power loss is low, and the shaft is not worn. It is widely used in engineering machinery, electronic industry, petroleum university, chemical industry and other industries. In a class of rotating machinery. The sealing treatment method used by Roots blower is mechanical structure sealing.

Characteristics of mechanical seal root blower

·① Low noise. The inlet and outlet of the fan adopt spiral structure, so that the inlet and exhaust of the fan will gradually proceed with the rotation of the rotor, avoiding the pulsation and noise generated by the instantaneous opening and closing of the old fan, making the operation balanced and low noise. The muffler adopts advanced sound absorption materials and special structure, which effectively reduces the noise of the fan.

② The operation is stable without vibration. The advanced impeller special machining center is adopted to make the meshing clearance of the rotor even and form a balanced state. On this basis, a more accurate dynamic balance experiment was carried out on the rotor to make the fan run almost without vibration.

③ High efficiency and low energy consumption. The fan adopts a special design, and the aiming curve is an advanced composite line, with good sealing performance, less leakage and further improved volumetric efficiency.

·④ Long service life. The fan gear can be carburized and ground by 20CrMnTi, with the accuracy required to reach five levels and the tooth surface is more wear-resistant. The bearing system adopts a double row roller with large bearing management capacity imported from China. Therefore, we have increased the service life of the fan network.

·⑤ Clean the output air. The fan is designed with special structure to prevent oily substances from entering the shell, and the output air is free of oil.

The above is the introduction of the principle and structure of the mechanical seal Roots blower. I hope it can help you. If you have any questions, please call 13181700788. Xinqianshun Roots blower manufacturer looks forward to your investigation and cooperation!