Modified Mechanical Face Seal Geometry

Abstract

The major factor affecting the mechanical seal in today’s working generation is the flexible hydraulic force and dynamic spring force applied on the surface of the rotating phase of mechanical face seal in working condition. Mechanical seal in industrial pump is used to prevent the excess leakage of fluid to the environment and prevent flowing it to the electrical part. Standard leakage which is followed in industry is 10 drops/day. Crossing the limit of the standard leakage leads to loss in large scale. This paper gives the simulation view of original mechanical seal and modified mechanical seal by von mises stress and hydraulic force and also the distorted view of the seal. The finite element analysis is carried out on the mechanical face seal and simulation is done for installing in centrifugal pump. The successful operations of the mechanical face seal are dependent on a large number of variables including face geometry, method of mounting and support to react the forces, face elastic modulus, pressure differential across the seal, area of face exposed to process liquid, flow regime of liquid in the seal chamber, flow rate of any cooling in the seal chamber, thermal and heat transfer properties of the liquid.