Detection device for simulating pipeline permeability in hydrogen/helium service environment

The utility model belongs to the technical field of detection equipment, and particularly relates to a detection device for simulating pipeline permeability in a hydrogen/helium service environment. A detection device for simulating pipeline permeability in a hydrogen/helium service environment comprises a gas input module, a sealed chamber sample module, a gas output module and a permeable gas detection box which are sequentially connected, and the gas input module comprises a hydrogen/helium supply source, a gas supply pipeline and a gas inlet pipeline; the sealed chamber sample module comprises an environment sealed chamber, an asbestos thermal insulation layer, a precise tube furnace and a sample to be detected are sequentially arranged in the environment sealed chamber, the gas output module comprises a diffusion pump and a gas outlet pipeline, and the tail end of the gas outlet pipeline is communicated with the permeable gas detection box. According to the utility model, the seepage pressure change data