NOVELTY - Device comprises an UV light reactor selects water vapor as a working raw material of an optical stack. The stack body of the UV light reactor is a honeycomb-shaped hollow multi-tube device. An optical stack core body for functioning on the water vapor is installed on a pipe chamber of the stack body of the UV light reactor. The stack body of the UV light reactor further comprises a front end cover and a rear end cover of the optical stack. The high pressure water vapor enters a front end chamber of the optical stack via a steam inlet port.    USE - The device is useful for decomposing water vapor into hydrogen and oxygen.    ADVANTAGE - The device has strong pressure support ability of the optical stack; has good anti-hydrogen permeation property, anti-corrosion property, antioxidant property, anti-hydrogen embrittlement property and thermal stability of the stack body.    DETAILED DESCRIPTION - Device comprises an UV light reactor selects water vapor as a working raw material of an optical stack. The stack body of the UV light reactor is a honeycomb-shaped hollow multi-tube device. An optical stack core body for functioning on the water vapor is installed on a pipe chamber of the stack body of the UV light reactor. The stack body of the UV light reactor further comprises a front end cover and a rear end cover of the optical stack. The high pressure water vapor enters a front end chamber of the optical stack via a steam inlet port. Each stack core of the optical stack via a vapor penetration hole enters through the front end support frame of the lamp pipe of each unit optical stack pipe. The water vapor is irradiated by the strong UV light in the stack core environment. The water molecule is decomposed under the action of a photocatalyst and a tearing electric field. The decomposed hydrogen penetrates a hydrogen sieve under the action of the pressure and the electric field to enter a recycling chamber of the UV light reactor and is conveyed out via a hydrogen outlet port. The generated oxygen is retained in the stack core and analyzed by the data of a water molecule probe in the stack core to obtain the reaction degree of the stack core in time. A control valve of the oxygen outlet port is opened when there is no water molecule or few water molecules. The generated oxygen enters into a rear end cover valve and is discharged via the oxygen outlet port. The water vapor is filled with the stack core again. Each stack core has a radial electric field while working. Digital testing instruments and information control electromagnetic valves are arranged at the water vapor inlet port, the hydrogen outlet port, the oxygen outlet port and a discharge port. The entire UV light reactor has an information controlling ability. The UV light reactor further equipped with a series of complete insulation and waste heat recycling devices for consuming less energy. The optical stacks are stacked, connected in parallel and combined.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the device for decomposing water vapor into hydrogen and oxygen.    Inlet (31)