Title:
SHELL TUBE HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/2015/002451
Kind Code:
A1
Abstract:
The present invention provides a shell tube heat exchanger, comprising: a shell having a coolant inlet, a coolant outlet, a water inlet, and a water outlet; a tube sheet partitioning an inside of the shell into a water path and a coolant path, the tube sheet having a through hole part; and a tube supported by the tube sheet, the tube communicating with the water path so that water passes through the tube, wherein the tube comprises an inner tube through which water passes, the inner tube formed of a copper material; an outer tube surrounding at least a portion of an outer circumferential surface of the inner tube, the outer tube contacting a coolant in the coolant path, wherein the outer tube is formed of an aluminum material; and a packing joined with the inner tube, the packing brought in tight contact with the through hole part, wherein the packing is formed of a copper material. The aluminum-material outer tube may be prevented from being corroded by water with minimized material costs.
Inventors:
HONG SEOK PYO (KR)
JANG JAE KYOO (KR)
MOON JUNG WOOK (KR)
LEE JU SEOK (KR)
JANG JAE KYOO (KR)
MOON JUNG WOOK (KR)
LEE JU SEOK (KR)
Application Number:
PCT/KR2014/005891
Publication Date:
January 08, 2015
Filing Date:
July 02, 2014
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
F28D7/10; F28F9/013
Foreign References:
| US8470097B2 | 2013-06-25 | |||
| US20110083619A1 | 2011-04-14 | |||
| KR20110004147A | 2011-01-13 | |||
| US6620969B1 | 2003-09-16 | |||
| JPH07310994A | 1995-11-28 |
Attorney, Agent or Firm:
PARK, Byung Chang (Kangnam-gu, Seoul 135-080, KR)
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