Flexible film type hydrogen-sensitive sensor and hydrogen leakage monitoring and protecting system

The invention relates to the technical field of hydrogen safety protection, and discloses a flexible film type hydrogen-sensitive sensor and a hydrogen leakage monitoring protection system.The flexible film type hydrogen-sensitive sensor comprises a proton exchange membrane and a plurality of hydrogen-sensitive sensing elements arranged on the proton exchange membrane in an array mode; each hydrogen-sensitive sensing element is composed of a counter electrode and a sensing electrode which are correspondingly arranged on the two sides of a proton exchange membrane, and the proton exchange membrane is coated with a catalyst layer. The hydrogen leakage monitoring and protecting system comprises the flexible film type hydrogen-sensitive sensor. The flexible film type hydrogen-sensitive sensor is an electrochemical hydrogen-sensitive sensing element array, and the intervals and the number of hydrogen-sensitive sensing elements are determined according to the required positioning precision. When the hydrogen leaks,