Cleaning and viewing of mechanical seals

Cleaning and checking the mechanical seal The operating principle of the mechanical seal requires that there is no impurities inside the mechanical seal. Before assembling the mechanical seal, clean the moving ring, static ring, shaft sleeve and other parts completely. The main points are as follows: 　　 1. Whether there are defects such as scratches and cracks on the surface of the dynamic ring, these shortcomings will cause severe leakage of the mechanical seal. If possible, you can use special tools to check whether the sealing surface is flat or not. The pressure water will enter the dynamic ring sealing surface of the mechanical seal after assembly, separate the dynamic ring, and the mechanical seal will fail. When necessary, the tooling can be manufactured before assembling with a hydraulic test.　　 2. Check whether the dynamic ring seat has shortcomings that affect the seal. For example, whether the dynamic ring seat and the dynamic ring sealing rubber ring cooperate with the appearance of defects such as scars.　　 3. Check whether the mechanical seal compensation spring is damaged and deformed, and whether the tenacious coefficient has changed.　　4. Check whether there are burrs, groove marks and other shortcomings in the seal sleeve.　　5. Clean and check whether there are cracks, pores and other shortcomings in all sealing rubber rings, and measure whether the diameter of the rubber ring is within the working tolerance range.　　6. u200bu200bFor mechanical seals with water pumping organization, it is necessary to check whether the spiral line of the screw pump has defects such as cracks and broken wires. Keywords: mechanical seal