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Wednesday, July 10 • 10:50 - 11:10
SELF-EXCITED VIBRATION OF VALVE CAUSED BY HYDRODYNAMIC FORCE

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Vibration of the pipe line is main reason of pipe connector to be loosen and leaking out working medium from the connector. To ensure the reliability of pipe line in operation, vibration of the pipe line must be decreased or avoided. Besides machine linked to the pipe line, valve in the pipe line is also one kind of vibration source to the pipe line because liquid passing through the valve can cause valve to vibrate. Thermostat control valve is a kind of self-adjust valve used in oil pipe line for protecting machines. To control the oil temperature in selected range the thermostat control valve can adjust the oil flows to the heating branch pipe and cooling branch pipe as the oil temperature is changed. But when it adjusts flow of oil, vibration will be taken place in the valve. This kind of valve vibration may cause pipe line vibration and damage the thermal rod of the thermostat control valve. The mechanism of how this kind of valve vibration taken place will be shown in this paper. Some of suggestion about decreasing or avoiding this kind of vibration on the oil pipe line will be given in this paper based on the conclusion of investigation.


Wednesday July 10, 2019 10:50 - 11:10 EDT
Outremont 4
  T06 Industr. and occup. Noise & vib., SS04 Adv in machin noise & vibr cntrl

Attendees (6)