Wednesday, 9 November 2011

Pressure Vessel

Pressure vessels are specialized storage vessels or tanks that are designed to operate at above normal pressure-vesselpressures (above 15 p.s.i.g). These vessels are used to maintain air, nitrogen, water, refrigerants, ammonia, propane and other reactor fuels.
The walls of pressure vessels are thicker than normal vessels/tanks and provide greater protection while using explosive or other hazardous chemicals.
These specialized vessels, generally have an in-built temperature control system and this can help to keep volatile chemicals in inert states; it can also be used to change the state of the material in order to use it for transportation. Gauges are provided with this equipment to read internal pressures and temperature.

Types and Uses of Pressure Vessels
Pressure vessels are used in a variety of industrial applications. There are different varieties of pressure vessels depending on their area of application. They are known as industrial compressed air receivers and domestic hot water storage tanks in private sectors. They are used in diving cylinder, distillation towers, recompression chamber, autoclaves in mining or oil refineries and petrochemical plants. They are used in pharmaceutical industry, nuclear reactor vessel, habitat of a space ship, submarine, pneumatic reservoir, rail vehicle airbrake reservoir. They are the storage vessels for liquified gases like ammonia, butane, chlorine, propane, and LPG.

Dangers Associated with Pressure Vessels
The pressure vessels when not used proper can be very dangerous. Infact many fatal accidents have occurred in the history of their operation and development. Cracked and damaged pressure vessels can lead to leakage or rupture failures. Potential hazards related to leaked pressure vessels are poisonings, fires, suffocations, and explosion hazards. Rupture failures can cause considerable damage to life and property. Hence the safe design, installation, operation, and maintenance of pressure vessels as per appropriate codes and standards are very necessary to worker's safety and health. As a result, their operation, design, manufacture are regulated by engineering authorities backed up by laws. All pressure vessels are manufactured with the maximum safe operating pressure and temperature.

Application of Pressure Vessel
  • Pharmaceuticals
  • Cosmetics
  • Food and Beverage
  • Plastic Processing
  • Power Generation
  • Chemicals
  • Paper and Pulp etc.