Global Patent Index - EP 0800048 A4

EP 0800048 A4 19990707 - HEAT EXCHANGER

Title (en)

HEAT EXCHANGER

Title (de)

WÄRMETAUSCHER

Title (fr)

ECHANGEUR DE CHALEUR

Publication

EP 0800048 A4 19990707 (EN)

Application

EP 95902945 A 19941214

Priority

  • BR 9408636 A 19941214
  • JP 9402090 W 19941214

Abstract (en)

[origin: EP0800048A1] A heat exchanger formed so as to enable a large amount of fluid to be heat exchanged efficiently, and the construction thereof to be simplified. A heat exchange flow passage (10) is provided on the inner side of a heat exchange vessel into and from which liquefied nitrogen, a heat transfer medium is supplied and discharged. The heat exchange flow passage (10) includes a plurality of stages of annular pipes (18) in which adjacent annular pipes (18) communicate with each other at a plurality of portions thereof, which are staggered circumferentially in different sets of stages, via communication pipes (19), tanks (20, 21) being provided so as to communicate with a supply port and discharge port respectively of the flow passage. The tank (20) communicates with a supply pipe (11), and the tank (21) with a discharge pipe (12). Since the positions of inlet ports and outlet ports of the annular pipes (18) are staggered circumferentially, a fluid is introduced in a turbulent state into the heat exchange flow passage (10) as it impinges repeatedly upon wall surface of the passage (10), in such a manner that the fluid is influenced much by the temperature of the same wall surface. <IMAGE>

IPC 1-7

F28D 1/06

IPC 8 full level

F28D 1/02 (2006.01); F28D 7/00 (2006.01)

CPC (source: EP)

F28D 1/0213 (2013.01); F28D 7/005 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0800048 A1 19971008; EP 0800048 A4 19990707; EP 0800048 B1 20030416; AU 1200295 A 19960703; AU 705772 B2 19990603; BR 9408636 A 19971223

DOCDB simple family (application)

EP 95902945 A 19941214; AU 1200295 A 19941214; BR 9408636 A 19941214