How Seal Gas Compressor Works. Dry Gas Seal and barrier gas control systems are specially designed to supply gas at the correct pressure and flow to the dry gas seals. The main objective of both types of control methods is to positively sweep the seal gas across the process gas labyrinth to prevent a.
Compressor process seals are designed to seal the rotating assembly in the stationary compressor case to prevent the process gas in the compressor from getting to the atmosphere and to prevent the atmosphere from getting into the process gas. Kinetic energy increases potential energystatic pressure by slowing the flow through a diffuser. These seals operate at high pressures using a high purity seal gas.
Typical dry gas seals have a tandem configuration providing a back-up seal should the primary seal fail.
A seal oil system continuously provides cool clean seal oil to the seals at the proper differential pressure over seal gas reference pressure temperature and flow rate. As the gas moves in the increasing smaller inner pocket the temperature and pressure increase to the desired discharged pressure. The number and style of rings that are required depend upon the gas duty temperatures pressures and piston design. A seal oil system continuously provides cool clean seal oil to the seals at the proper differential pressure over seal gas reference pressure temperature and flow rate.
