| 摘要 |
PROBLEM TO BE SOLVED: To provide a space environment testing device provided with a piping connection structure capable of opening/closing a door and certainly carrying out an introduction and a conduction out of liquefied nitrogen without removing coolant pipes for feeding liquefied nitrogen even when a door part shroud is cooled at a free boiling system. SOLUTION: The space environment testing device has a door 5 openably/ closably supported to an end of a vacuum container through a hinge 20 and is provided with the door part shroud in the door. The body side coolant piping 1 for cooling the door part shroud in which liquefied nitrogen flows and a shroud side coolant piping 6a drawn out from the door part shroud to the outside of the door are formed by bendable and flexible heat-insulation pipes 21 provided at a hinge side. A piping retaining means 22 for horizontally retaining it while permitting a bending deformation of the flexible heat-insulation pipes at the time of opening/closing the door is provided.
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