Analysis on single valve regulation's influence on transution process of pump system

作者：Feng Wei Min^*; Zuo Lei; Yuan Bo; Chen Bo

来源：Journal of Engineering Thermophysics, 2010, 31(SUPPL.): 153-156.

• Adverse currents
• Comparative analysis
• Operation principles
• Outlet valve
• Practical use
• Pump system
• Start-ups
• Transient flow
• Valve positions
• Valve regulation
• Water hammer pressure

As the valve position changes, the water hammer produced by accidental pump-stop and its influence on pump system changes. This paper analyzed the operation principle of two kinds of single valve regulation mode which were modes of pump outlet valve and valve at the end of pipe. Combined with practical use, comparative analysis between two modes, were made which shows that when transient flow control valve was settled at the end of pipe to do single valve regulation, there would start up a step-up water hammer wave which spreads by adverse current. The step-up wave would make a negative superposition with the step-down water hammer wave produced on the pump outlet side, which would control the oscillatory of water hammer pressure process more effectively.

• 出版日期2010