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Title:
STAINLESS STEEL HEAT EXCHANGER, GAS WATER HEATER AND MANUFACTURING METHOD OF HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2019/196661
Kind Code:
A1
Abstract:
A stainless steel heat exchanger (100), a gas water heater, and a manufacturing method of the heat exchanger (100). The stainless steel heat exchanger (100) comprises: a mounting plate (3); a plurality of heat exchange tubes (4) fixedly connected to the mounting plate (3) by means of a first welding portion (8); a communicating structure having a communicating space (6), ends of two or more heat exchange tubes (4) being communicated with one another by means of the communicating space (6) to form a flow channel, and the communicating structure is connected to the mounting plate (3) and/or the heat exchange tubes (4); and an isolating portion configured to isolate the first welding portion (8) from the flow channel. According to the stainless steel heat exchanger (100), the gas water heater and the heat exchanger (100), the welding portion of the heat exchanger cannot be prone to being corroded, and the service life is prolonged.

Inventors:
QIU, Bu (336 Yaoxin Avenue, Nanjing Economic and Technological Development ZoneNanjing, Jiangsu 8, 210038, CN)
ZHOU, Xiaowei (336 Yaoxin Avenue, Nanjing Economic and Technological Development ZoneNanjing, Jiangsu 8, 210038, CN)
DUAN, Qingbin (336 Yaoxin Avenue, Nanjing Economic and Technological Development ZoneNanjing, Jiangsu 8, 210038, CN)
Application Number:
CN2019/080056
Publication Date:
October 17, 2019
Filing Date:
March 28, 2019
Export Citation:
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Assignee:
A.O.SMITH (CHINA) WATER HEATER CO., LTD. (336 Yaoxin Avenue, Nanjing Economic and Technological Development ZoneNanjing, Jiangsu 8, 210038, CN)
International Classes:
F24H9/18; F28F21/08
Foreign References:
CN106440375A2017-02-22
JPS58123094A1983-07-22
CN103994579A2014-08-20
JPS54129550A1979-10-08
JPS61107100A1986-05-24
CN104197770A2014-12-10
CN204345923U2015-05-20
CN104015019A2014-09-03
CN206347912U2017-07-21
US4689279A1987-08-25
CN108387000A2018-08-10
CN208059323U2018-11-06
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (16th Fl, Block A Corporate Square,No.35 Jinrong Street, Beijing 3, 100033, CN)
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