Turbo expander test environment simulation device

The utility model discloses an environment simulation device, belongs to the technical field of turbo expanders, and particularly relates to a turbo expander test environment simulation device which comprises an equipment pressure tank and a turbo expander installed in the equipment pressure tank. And the turbine air inlet group, the turbine air outlet group, the compression wheel air inlet group and the compression wheel air outlet group are connected with the turbine expansion machine through pipelines. And the turbine air inlet group, the turbine air outlet group, the compression wheel air inlet group and the compression wheel air outlet group are used for carrying out environment simulation test on the turbo expander at different flight heights, so that the expansion refrigeration effect of the turbo expander at different flight heights in different environment air pressures can be tested, the structure is simple, the construction cost is low, the performance is excellent, and the application range is wid