A pressure vessel is essentially a vessel containing pressure obtained from heat application either from a direct or indirect source. The vessel proper normally terminates at -
>Face of first flange in the bolted flange connections
>The foremost circumferential joint for the welded end connections, or
>Primary threaded joint in the threaded connections
Some fine and common examples of pressure vessels include anhydrous ammonia tanks, compressed gas storage tanks (nitrogen tanks, air, oxygen, etc.), autoclaves, refrigerant vessels, chemical reactors, hot water storage tanks and hydro pneumatic tanks.
Difference Between Pressure Vessels & Boilers
The basic difference between the two is that the former is designed for holding fluids at high pressure, whereas the latter hold liquids for the purpose of boiling them with the help of a heat source. Boilers are made to generate a lot of steam for powering something, like propelling a steam engine or generating electricity. Since boilers have to withstand an enormous amount of pressure, they can be regarded as a type of pressure vessel. However, it is possible that they exist simply for creating steam or hot water at a normal pressure.
Inspection Of Pressure Vessels
If a pressure vessel accidentally falls, it would do so in a catastrophic way and release a huge amount of energy as well as contents of the tank. The results of such a disaster can be varied -
>Projectiles moving at a high speed
>Shock wave generated by vessel contents
>Jeopardisation of safety of the personnel present
>Comprise of critical components
>Release of toxic or hazardous contents, production loss, environmental pollution, etc.
Pressure vessel inspection is a vital measure that can help to avert devastating accidents triggered by fall of such tanks. It can prevent great property damage and injury to workers.
Significance Of Regular Maintenance
Though inspections are extremely vital and substantially help to keep dangerous mishaps at bay, they can only determine safety of a vessel during the performance of the inspection. Once that is over, it is duty of the pressure vessel owner to exercise regular maintenance for preventing associated risks. In case any damage is encountered, no matter how small or big it is, it must at once be resolved with the help of licensed, qualified and reputed professionals in Dubai.
Thus, long story short, pressure vessels are used for a variety of purposes in different industries, but they must be manufactured, inspected and regularly repaired to prevent accidents.
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