Title:
MEASURING METHOD FOR STEAM VALVE AND MEASURING DEVICE FOR STEAM VALVE
Document Type and Number:
WIPO Patent Application WO/2023/149090
Kind Code:
A1
Abstract:
A measuring method for a steam valve according to at least one embodiment of the present disclosure comprises a step for measuring the acceleration of a valve stem when the valve stem is driven by an actuator to open a sub valve from a fully closed state of a main valve and the sub valve, a step for detecting the timing of full opening of the sub valve on the basis of the measured acceleration of the valve stem, and a step for calculating a movement of the valve stem from a reference position to a position where the sub valve is fully opened.
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WO/2022/082167 | SYSTEM AND METHOD FOR VALVE SEAT ARRANGEMENTS |
Inventors:
NISHIDA SHINGO (JP)
HIROTA KAZUO (JP)
SUZUKI FUMIYUKI (JP)
HATA MASAKI (JP)
HIROTA KAZUO (JP)
SUZUKI FUMIYUKI (JP)
HATA MASAKI (JP)
Application Number:
PCT/JP2022/045769
Publication Date:
August 10, 2023
Filing Date:
December 13, 2022
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI POWER LTD (JP)
MITSUBISHI POWER LTD (JP)
International Classes:
F16K1/44; F01D17/10; F16K37/00
Domestic Patent References:
WO2020138307A1 | 2020-07-02 |
Foreign References:
JPS5825502A | 1983-02-15 | |||
JP2016205584A | 2016-12-08 | |||
JP2017160890A | 2017-09-14 |
Attorney, Agent or Firm:
SSIP PATENT ATTORNEY CORPORATION (JP)
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