NUCLEAR POWER PLANT INSTRUMENTATION DEVICE

• Main Authors: FUSHIMI ATSUSHI, HANAMI HIDEKI, HARA ISAO, BABA ATSUSHI, KUWANA RYO, NIIMA DAISUKE, ITO TAKASHI, ARITA SETSUO
• Format: Patent
• Language: English; Japanese
• Published: 24.08.2015
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide a nuclear power plant instrumentation device that can certainly suppress generation of air bubbles in a connecting passage and hence improves the reliability and maintainability for a long term.SOLUTION: The nuclear power plant instrumentation device 10 includes: a tubular connecting passage disposed in a part for measuring the measurement fluids Fh and Fl in a primary system of a nuclear power plant 100; an encapsulation liquid L filled into the connecting passage; pressure receiving diaphragms 13 and 13' that are disposed so as to block one opening in the connecting passage, and receive the pressures of the measurement fluids Fh and Fl; a pressure sensor 15 disposed in the other opening in the connecting passage in an exposed state to the encapsulation liquid L; and a hydrogen storage material disposed inside the connecting passage. 【課題】導圧路内においての気泡の発生を確実に抑えることができ、これにより、長期にわたって信頼性とともに保守性の向上が図られた原子力プラント計装装置を提供する。【課題手段】原子力プラント１００一次系における測定流体Ｆｈ，Ｆｌを計測する部位に設けられる管状の導圧路と、導圧路内に充填された封入液Ｌと、導圧路における一方の開口を閉塞する状態で設けられ測定流体Ｆｈ，Ｆｌの圧力を受圧する受圧ダイアフラム１３，１３'と、封入液Ｌに晒された状態で導圧路における他方の開口に設けられた圧力センサ１５と、導圧路の内部に設けられた水素吸蔵材とを有する原子力プラント計装装置１０。【選択図】図１