Dear masters, please help analyze the issue of high-frequency vibration
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The 135MW turbine in Nanjing is experiencing severe vibration when the opening degree of the #1 high-pressure throttle is above 70%; the vibration intensity decreases when the opening degree is below 70%. Could someone please help analyze this? Thank you
Full name of the high-profile valve. Valves come in various types; it’s best to send a picture or diagram, as visual references make things clearer and are useful for reference. Answers are guessed and for reference only. The valve actuator positioner should be checked; it’s advisable to clean it, service it, or try replacing it.