Title:
CONDENSING HEAT EXCHANGER AND WATER HEATER HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2022/121376
Kind Code:
A1
Abstract:
A condensing heat exchanger (100) capable of reducing fan requirements, and a water heater having same. The condensing heat exchanger (100) comprises: a heat exchanger shell (110) having a flue gas inlet (101) and a flue gas outlet (102); and a heat exchange unit (104) located inside the heat exchanger shell (110). A side wall flue gas exhaust duct (105) in communication with the flue gas outlet (102) is provided between the heat exchange unit (104) and an inner side wall of the heat exchanger shell (110). The heat exchange unit (104) surrounds a flue gas intake duct (103) in communication with the flue gas inlet (101). The side wall flue gas exhaust duct (105) surrounds the heat exchange unit (104). The heat exchange unit (104) is internally provided with a heat exchange gas duct connecting the flue gas intake duct (103) to the side wall flue gas exhaust duct (105).
Inventors:
WANG WEI (CN)
ZHANG CHENGJUN (CN)
LIN KANG (CN)
ZHANG CHENGJUN (CN)
LIN KANG (CN)
Application Number:
PCT/CN2021/114193
Publication Date:
June 16, 2022
Filing Date:
August 24, 2021
Export Citation:
Assignee:
SMITH A O CHINA WATER HEATER (CN)
International Classes:
F24H1/43; F24H8/00; F24H9/00
Foreign References:
| JP2006317036A | 2006-11-24 | |||
| DE112005001061T5 | 2008-11-06 | |||
| CN107062598A | 2017-08-18 | |||
| CN101206102A | 2008-06-25 | |||
| CN112413899A | 2021-02-26 | |||
| CN213841355U | 2021-07-30 | |||
| CN1950648A | 2007-04-18 | |||
| CN202254310U | 2012-05-30 | |||
| JP2007127331A | 2007-05-24 | |||
| CN102679550A | 2012-09-19 | |||
| DE10136441A1 | 2003-02-13 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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