DESIGN & ANALYSIS OF PRESSURE SAFETY RELEASE VALVE BY USING FINITE ELEMENT ANALYSIS

Mechanical Engineering

In chemical processing industry the pressure inside the vessel is increase due to many reasons. An important responsibility of a chemical plant designer is to make sure that a plant under design, can be operated safely, it is provided with primary, secondary safety arrangement. One of the dangerous situations that can be arises during operation inability of a system to a pressure higher than that for which it was designed. With designing pressure safety release valve for inside vessel pressure, we are giving priority to mechanical systems to release inside pressure. The reasons are many for increase/exceed inside pressure. The fulfillment for such condition is done using spring loaded nonreclosing pressure relief devices with clip ON arrangement. For instant opening of pressure safety release valve for chemical processing vessel, the inside pressure which is force to plate and release the inside pressure is not sufficient, so, at back side of plate required special stretched spring arrangement which can pull the plate after breaking of clip ON, clip ON is used to hold the plate with stretched spring positions. To design the clip ON is the concentrated work because if internal pressure goes beyond set pressure then the pressure safety release system should allow to release exceed inside pressure. To turn in emergency safety release system category valve should open in less than 2 second. Pressure safety release valve system design for 0.14 MPa. Other components also designed and checked which should not fail before the clip ON.

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