Measurement method for steam valve and measurement device for steam valve
US12287045B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Dec 13, 2022 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Dec 13, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A measurement method for a steam valve according to at least one embodiment of the present disclosure, includes: a step of measuring acceleration of a valve stem when a slave valve is opened by driving the valve stem with an actuator from a fully closed state of a master valve and the slave valve; a step of detecting a timing at which the slave valve is fully opened, based on the measured acceleration of the valve stem; and a step of calculating an amount of movement of the valve stem from a reference position to a position where the slave valve is fully opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.