Title:
PLATE-TYPE HEAT EXCHANGER, HEAT PUMP DEVICE COMPRISING PLATE-TYPE HEAT EXCHANGER, AND HEAT PUMP-TYPE HEATING/COOLING HOT WATER SUPPLY SYSTEM COMPRISING HEAT PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/176565
Kind Code:
A1
Abstract:
This plate-type heat exchanger is configured such that: a plurality of heat transfer plates having openings at the four corners and having an outer wall part on an end are layered; the heat transfer plates are joined to each other by brazing at portions thereof; a first flow passage in which a first fluid flows and a second flow passage in which a second fluid flows are formed alternately with the heat transfer plates as a boundary and are continuous with the openings at the four corners; and formed are a first header which causes the first fluid to flow in and out, and a second header which causes the second fluid to flow in and out. The plate-type heat exchanger, wherein: at least one of the heat transfer plates that sandwiches the first flow passage or the second flow passage is constituted by stacking two metal plates; and between the two metal plates, there exists a minute flow passage, which is formed in a heat exchange region where the first fluid and the second fluid exchange heat with each other, as well as a peripheral leak passage, which is formed outside the minute flow passage and communicates with the outside and which has a greater hydraulic diameter than that of the minute flow passage.
Inventors:
SUN FAMING (JP)
YOSHIMURA SUSUMU (JP)
EIJIMA YOSHITAKA (JP)
SHIRAISHI SHO (JP)
ABE RYOSUKE (JP)
YOKOI MASAHIRO (JP)
SUZUKI KAZUTAKA (JP)
YOSHIMURA SUSUMU (JP)
EIJIMA YOSHITAKA (JP)
SHIRAISHI SHO (JP)
ABE RYOSUKE (JP)
YOKOI MASAHIRO (JP)
SUZUKI KAZUTAKA (JP)
Application Number:
PCT/JP2019/007857
Publication Date:
September 19, 2019
Filing Date:
February 28, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F28F3/08; F25B1/00; F25B39/04; F28F3/00; F28F3/04
Foreign References:
| JP2012127597A | 2012-07-05 | |||
| JP2016099093A | 2016-05-30 | |||
| JP2016090217A | 2016-05-23 | |||
| JP2007232337A | 2007-09-13 | |||
| JPH05507787A | 1993-11-04 | |||
| JP2006183969A | 2006-07-13 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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