Device for detecting oxygen in hydrogen

The invention discloses a device for detecting oxygen in hydrogen, and relates to the technical field of hydrogen oxygen content detection, and the device comprises an analysis assembly which comprises an oxygen transmitter used for detecting the oxygen content of to-be-detected gas and a gas passing pipeline connected with the gas inlet end and the gas outlet end of the oxygen transmitter; the gas transmission assembly comprises a to-be-detected gas pipeline and a verification gas pipeline, and the to-be-detected gas pipeline and the verification gas pipeline are both connected with the gas inlet end of the gas passing pipeline; and the protection assembly comprises a gas-liquid separator which is mounted at the front end of the oxygen transmitter in a preposed manner and is arranged on a to-be-detected gas pipeline. By arranging the protection assembly, gas-liquid separation and drying treatment are carried out on gas to be detected, water vapor in the gas to be detected is removed, and a sensor in an oxyge