Sumitomo Electric Industries, Limited

The Tokyo Electric Power Company, Incorporated

Michihiko Watanabe

Shoichi Honjo

Yoshihisa Takahashi

Tomoo Mimura

Kimiyoshi Matsuo

Terumitsu Aiba

To provide a thermal insulation piping with no radially projecting part from a periphery thereof, so as to facilitate insertion of the thermal insulation piping into a pipeline or equivalent. In a thermal insulation tubehaving a vacuum layer between an inner tubeand an outer tube, an evacuation portfor vacuum evacuation is oriented parallel with a longitudinal direction of the thermal insulation piping at an end of the thermal insulation tube. This construction can produce the thermal insulation tubewith no radially projecting part from a periphery thereof, thus providing improved workability when the thermal insulation piping is contained in the pipeline or equivalent. Further, a flexible pipe(s)is/are preferably connected to the evacuation port(s). This can allow increased positional tolerances in the connection of the evacuation port(s) to a vacuum evacuation device.

Vacuum-insulated pipe

A baking method for heating an object (an inner pipe, an outer pipe) having a vacuum layer formed therein to remove gas molecules occluded in the object, wherein the object itself is made to be a heat production element for heating. By making the baking object a heat production element, the object can be heated directly and the heating can be energy-efficient. Moreover, additional heating means such as a heater or gas is unnecessary, which enables simplification of a configuration of a baking device. Therefore, a baking method is obtained which enables energy-efficient heating and, in particular, uniform heating of a long or large object.

Baking method

Growing community of inventors

Osaka, Japan

Michihiko Watanabe