Study on Control Quality of Valve Outlet Blockage Fault

Abstract:

The flow characteristic and differential pressure-flow of outlet blockage fault and trouble-free for control valve are simulated by CFD. The study shows that the vortex at the bottom of control valve outlet is main reason for the outlet blockage fault, relative gain of flow characteristic curve for outlet blockage is increased, the flow percentage of outlet blockage compared with trouble-free is maximum value at relative opening is 60% and 100%, the pressure - flow percentage reaches maximum value at differential pressure is 800 kPa.

• Periodical: Advanced Materials Research (Volume 983)
• Pages: 424-427
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.983.424
• Online since: June 2014
• Authors: Yan Tao An*, Ru Jian Ma, Dong Zhao
• Keywords: Blockage, Control Valve, Differential Pressure, Flow Characteristic

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