JPH0367865U

JPH0367865U -

Info

Publication number: JPH0367865U
Application number: JP12642289U
Authority: JP
Priority date: 1989-10-27
Filing date: 1989-10-27
Publication date: 1991-07-03

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による冷凍装置の
冷媒回路図、第２図Ａ，Ｂは、そのシエルコイル
式熱交換器の断面図、第３図Ａ，Ｂは従来の一般
的な多管式熱交換器の断面図、第４図は従来の冷
凍装置の分解斜視図、第５図はその冷媒回路図で
ある。これらの図において、１は圧縮機、２は擬
縮器、１１，１２は第１、第２の絞り装置、７は
多管式熱交換器、７ａは内管、７ｂは外管、７ｅ
は第１の流路、１０はシエルコイル式熱交換器、
１０ｈはコイル状内管、１０ｅは外筒、１０ｇは
第２の流路である。なお、各図中、同一符号は同
一、又は相当部分を示す。 Fig. 1 is a refrigerant circuit diagram of a refrigeration system according to an embodiment of this invention, Figs. 2 A and B are sectional views of the shell coil type heat exchanger, and Figs. 3 A and B are conventional general multi-layer heat exchangers. FIG. 4 is an exploded perspective view of a conventional refrigeration system, and FIG. 5 is a refrigerant circuit diagram thereof. In these figures, 1 is a compressor, 2 is a pseudo-condenser, 11 and 12 are first and second expansion devices, 7 is a multi-tube heat exchanger, 7a is an inner tube, 7b is an outer tube, and 7e is a
is the first flow path, 10 is a shell coil heat exchanger,
10h is a coiled inner tube, 10e is an outer tube, and 10g is a second flow path. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

In a refrigeration system having a refrigerant circuit including a compressor, a pseudo-compressor, a throttle device, and a heat exchanger that exchanges heat between the refrigerant supplied through the throttle device and the fluid to be cooled, a plurality of inner pipes and , an outer tube into which these inner tubes are inserted, a refrigerant supplied into the inner tube through a first expansion device, and a second tube formed between the outer tube and the inner tube. The refrigerant circuit has a multi-tubular heat exchanger that exchanges heat with a fluid passing through a flow path, an inner tube wound into a coil, and an outer tube into which the coiled inner tube is inserted. The refrigerant is diverted from the liquid pipe section and supplied into the coiled inner tube through a second throttle device, and the refrigerant is sent out from the multi-tube heat exchanger and is between the outer tube and the coiled inner tube. The heat exchanger is configured by a shell coil type heat exchanger that exchanges heat with the fluid passing through a second flow path formed in the shell coil type heat exchanger, and the heat exchange amount of the shell coil type heat exchanger A refrigeration system characterized in that the heat exchange amount is greater than or equal to that of a heat exchanger, and the second flow path area is greater than or equal to the first flow path area.