PURPOSE: To provide a compact cooling device which improves the cooling efficiency by biologically combining a heat accumualtor or heat exchanger and a cylindrical cooling jacket, and at the same time, prevents a high temperature compressed refrigerant gas from directly coming into contact on the inner surface of a high pressure container, especially at the upper part.
CONSTITUTION: A cylindrical cooling jacket 15 with a passage for refrigerant 14 inside is provided on the inner surface side of a high pressure container 1 in order to form a space between the upper surface of a heat insulating layer 5 which is arranged in a high pressure chamber 4 in the high pressure container 1 and the lower surface of a lid member 2. A heat accumulator 17 or heat exchanger is provided in a space in a cylindrical part 16 of the cooling jacket 15, and the heat accumulator 17 or heat exchanger has a passage 18 which introduces a compressed refrigerant gas which ascends from a furnace chamber through an upper compressed refrigerant gas circulating hole 9 to the lower surface side of the lid member 2, at the time of cooling.
NAKAI TOMOMITSU
NARUKAWA YUTAKA
| JPH0538221A | 1993-02-19 | |||
| JPH02140592A | 1990-05-30 | |||
| JPH0273600U | 1990-06-05 |