JPS6346808U

JPS6346808U -

Info

Publication number: JPS6346808U
Application number: JP14057486U
Authority: JP
Priority date: 1986-09-16
Filing date: 1986-09-16
Publication date: 1988-03-30

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例の正断面図、第２
図は第１図のものの要部斜視図、第３図は他の実
施例の正断面図、第４図は従来の極低温容器の正
断面図である。１……液体ヘリウム槽、３……真空断熱槽、８
……排気口、９……液体窒素容器、２０……輻射
熱シールド、２１……下部集合配管、２２……上
部集合配管、２３……分枝配管、２５……気液分
離器。なお、各図中、同一符号は同一又は相当部
分を示す。 Figure 1 is a front sectional view of one embodiment of this invention, Figure 2 is a front sectional view of an embodiment of this invention.
The figures are a perspective view of a main part of the one shown in FIG. 1, FIG. 3 is a front sectional view of another embodiment, and FIG. 4 is a front sectional view of a conventional cryogenic container. 1...Liquid helium tank, 3...Vacuum insulation tank, 8
... Exhaust port, 9 ... Liquid nitrogen container, 20 ... Radiant heat shield, 21 ... Lower collecting pipe, 22 ... Upper collecting pipe, 23 ... Branch pipe, 25 ... Gas-liquid separator. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of Claim for Utility Model Registration] (1) A cylindrical vacuum insulation tank, a cylindrical liquid helium tank that accommodates a superconducting magnet and liquid helium and is disposed within the vacuum insulation tank, and the liquid helium tank and the a cylindrical radiant heat shield disposed surrounding the liquid helium tank between the vacuum insulation tank; and a lower assembly disposed substantially parallel to the axis of the radiant heat shield at the lower and upper portions of the outer periphery of the radiant heat shield. piping, an upper collecting pipe, an annular branch pipe connecting the lower collecting pipe and the upper collecting pipe and closely arranged on the radiant heat shield, and a liquid nitrogen container disposed outside the vacuum insulation tank. A cryogenic container comprising: a liquid injection pipe connecting a supply pipe from the top to the lower collecting pipe; and an exhaust port for discharging evaporated liquid nitrogen gas from the upper collecting pipe to the outside of the vacuum insulation tank. (2) The cryogenic container according to claim 1, wherein the branch piping is brazed to the radiant heat shield. (3) The cryogenic container according to claim 1 of the utility model registration claim, which is equipped with a plurality of branch pipes. (4) The cryogenic container according to claim 1, wherein the lower collecting pipe and the upper collecting pipe are brazed to a radiant heat shield. (5) The cryogenic container according to claim 1, which is equipped with a gas-liquid separator provided at the exhaust port. (6) The cryogenic container according to claim 1, which is equipped with a liquid nitrogen container installed at a higher location than the vacuum insulation tank. (7) The cryogenic container according to claim 6, which is provided with an exhaust pipe extending from the exhaust port and opening into the gas space inside the liquid nitrogen container. (8) The cryogenic container according to claim 1, wherein the radiant heat shield is made of either copper or aluminum.