Understand the principle and structure of mechanical seals

Overview of mechanical seal 1. Define a device to prevent fluid leakage composed of at least one pair of end faces perpendicular to the rotation axis under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal to keep fit and slide relatively. 2. Basic structure The mechanical seal is generally composed of four major parts: ① A pair of sealing end faces composed of a static ring (static ring) and a rotating ring (moving ring). The sealing end face is sometimes called a friction pair and is a mechanical seal Core; ② Compensation buffer mechanism based on elastic elements (or magnetic elements); ③ Auxiliary sealing mechanism; ④ Transmission mechanism that rotates the moving ring and the shaft together.