The role of multistage centrifugal pump packing

Category: Water pump knowledge

2024-06-27

Filler has a wide range of applications and can be used in various chemical, petroleum, pharmaceutical and liquid transportation industries. However, the quality of the filler must be guaranteed, and the filler should be replaced in accordance with the prescribed time limit to ensure the efficiency and safety of the centrifugal pump.

multistage centrifugal pumpIt is generally composed of impeller, pump casing, guide vane, bearing, mechanical seal, etc. Its working principle is to rely on a higher speed impeller to bring the liquid into the pump shell to form a high-speed rotating fluid. Under the action of the guide vane, the kinetic energy of the fluid is converted into pressure energy, which is finally output through the pump outlet.

Principle of 1. packing

The principle of the packing is to obtain a close contact and form a reliable seal through the compression deformation of the packing. The filler is usually made of resin, graphite, asbestos and other materials, and has a certain degree of plasticity. Packing along the axial, radial and circumferential uniform compression, forming a good sealing force. At the same time, the lubricant in the packing can also lubricate the sealing parts, reducing wear and friction.

The role of 2. fillers

Packing is one of the indispensable parts of centrifugal pump. The packing ring rotates around the pump shaft and uses centrifugal force to transport the liquid from the suction end of the pump to the outlet. The main functions of the packing are as follows:

1. Protective seal

The main function of the packing is to play a sealing role to avoid liquid leakage. Packing selection and installation quality directly affect the centrifugal pump sealing. Good packing can ensure the sealing of the pump, reduce leakage and extend the service life of the pump.

2. Reduce leakage

The packing forms a sealing layer at the shaft seal of the centrifugal pump, so that the internal liquid of the pump cannot be leaked, which effectively reduces the occurrence of leakage and ensures the safety and stability of production.

3. Improve the efficiency of the pump

The correct selection and installation of suitable packing can greatly improve the efficiency of the pump. Appropriate packing can reduce the pressure loss in the pump and reduce the friction loss, thereby increasing the speed of the pump, increasing the delivery flow, and improving the efficiency of the pump.

Previous: What is the role of mechanical seal ring

Next: Gasoline industry multi-stage pump how to repair and maintenance

Contact Us

Free Hotline:+86 18142662779

Fixed telephone:+86 19313001794      

Mobile:+86 18142662779(WeChat/WhatsAPP)

E-mail:info@sanchangpump.net