HEAT EXCHANGER, REFRIGERATION CYCLE DEVICE, AND AIR CONDITIONING DEVICE

This heat exchanger comprises a heat exchanger body having: a heat transmission pipe through which a fluid passes and which has a groove formed in the inner surface thereof, the groove being a recessspirally extending in the direction of the pipe axis; and a fin that is in contact with the heat tran...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	UGAJIN YUKI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION HEAT EXCHANGE IN GENERAL HEAT PUMP SYSTEMS HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	This heat exchanger comprises a heat exchanger body having: a heat transmission pipe through which a fluid passes and which has a groove formed in the inner surface thereof, the groove being a recessspirally extending in the direction of the pipe axis; and a fin that is in contact with the heat transmission pipe to promote heat exchange of the fluid. If a flow path length L, which is the length of the heat transmission pipe, from the heat exchanger inlet to the heat exchanger outlet between which the fluid flows, is not greater than 10 m, the lead angle theta formed between the pipe axis andthe groove satisfies 25 degrees