VALVE OPENING DETECTION DEVICE

• Main Author: HIJIKATA KENJI
• Format: Patent
• Language: English; Japanese
• Published: 30.11.2023
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINE PLANTS IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

To provide a valve opening detection device for a turbine safety device that enables the structure to be simplified, enables the number of contacts to be easily increased and enables timing of a contact operation to be easily changed.SOLUTION: A valve opening detection device 100 includes: a mounting case 2 covering an extending/contracting rod 12 of an actuator 11 of a valve; one or a plurality of detector mounting rails 3 disposed in parallel with a central axis of the rod on the inner side of the mounting case 2; and one or a plurality of detectors 1 for detecting the rod 12 movably mounted to the detector mounting rails 3.SELECTED DRAWING: Figure 2 【課題】装置の構造を簡素化でき、接点数の増設、接点動作のタイミング変更が容易にできるタービン保安装置用の弁開度検出装置を得る。【解決手段】弁開度検出装置１００は、弁のアクチュエータ１１の伸縮するロッド１２を覆う取付ケース２と、取付ケース２の内側にロッドの中心軸に平行に配置された１つまたは複数の検出器取付レール３と、検出器取付レール３に移動可能に取り付けられたロッド１２を検出する１つまたは複数の検出器１とを備える。【選択図】図２