Summary of mechanical seal device and application demand. The axial momentum of 04mm rotor is 0. The mechanical seal of 1mm device stops and the positioning end face of the seal housing is straight to the shaft. 04mm mechanical seal device is necessary Shaft sleeve seal cavity seal Liquid dynamic pressure bearing Common shaft housing shaft

1) It is necessary to select suitable types of mechanical seals and match the data according to the working conditions of marine mechanical seals and main engines; Ability to ensure normal operation and service life of seals

2) The radial runout of the shaft (shaft sleeve) at the mechanical seal of the device shall be ≤ 0. 04mm; Axial displacement of rotor ≤ 0. 1mm.

3) Sealing end cover (or housing) of mechanical seal stop ring of the device; Straightness of positioning end face to shaft ≤ 0. 04mm.

4) When the mechanical seal is installed; It is necessary to clean the shaft (shaft sleeve), seal chamber, seal end cover and mechanical seal; Avoid any impurities from entering the sealing area

5) When the temperature of the transport medium is too high or too low, or is rich in foreign particles, flammable, explosive, or toxic; It is necessary to refer to relevant specifications of mechanical seal; Adopt corresponding methods such as blocking, flushing, cooling and filtering

6) Mechanical seal device; It shall be properly smooth according to the product device instructions; Ensure the dimensions of the mechanical seal

7) It is necessary for the equipment to be filled with media before operation; To avoid seal failure due to interference

8) Mechanical seal driven by single tension spring in the sample; The rotation direction of tension spring shall be selected reasonably; It is usually seen from the end of the stop ring; When the shaft turns clockwise; The right tension spring shall be selected, and the left tension spring shall be selected on the contrary