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Title:
HEAT EXCHANGER AND AIR CONDITIONER USING SAME
Document Type and Number:
WIPO Patent Application WO/2018/173356
Kind Code:
A1
Abstract:
A heat exchanger comprising a heat transfer tube inserted from the horizontal direction with respect to a vertical fin suffers from the problem of power consumption reduction being difficult because the heat transfer area of the entire heat exchanger is not utilized due to an unbalanced flow occurring in the flow of refrigerant from a header to a plurality of heat transfer tubes. In order to resolve this problem, provided is a heat exchanger comprising an inflow-side header, an outflow-side header, a plurality of heat transfer tubes connecting between the headers, and a fin that expands the heat transfer area of the heat transfer tubes, wherein: the inflow-side header comprises a gas-liquid mixing unit into which a gas-liquid two-phase refrigerant flows via an inlet pipe, a plurality of header spaces that are disposed in the upper part of the gas-liquid mixing unit and that are divided vertically by a partitioning plate, and a plurality of communication channels by which the gas-liquid mixing unit directly communicates with the header spaces; each header space is connected to at least one heat transfer tube; and each communication channel has at least one opening inside the gas-liquid mixing unit.

Inventors:
SASAKI Shigeyuki (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
SEKIYA Sachio (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
MAITA Hiroshi (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
SATO Daiwa (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
ENDO Takeshi (Inc. 16-1, Kaigan 1-chome, Minato-k, Tokyo 22, 〒1050022, JP)
TSUKADA Yoshiharu (Inc. 16-1, Kaigan 1-chome, Minato-k, Tokyo 22, 〒1050022, JP)
Application Number:
JP2017/040420
Publication Date:
September 27, 2018
Filing Date:
November 09, 2017
Export Citation:
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Assignee:
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (16-1, Kaigan 1-chome Minato-k, Tokyo 22, 〒1050022, JP)
International Classes:
F25B41/00; F16L41/03; F25B39/02; F28F9/02
Domestic Patent References:
WO2013160952A12013-10-31
Foreign References:
JP2013130386A2013-07-04
JP2015055412A2015-03-23
US4513587A1985-04-30
JP2016080255A2016-05-16
JP2010107068A2010-05-13
JP2012137223A2012-07-19
JPH04302964A1992-10-26
Attorney, Agent or Firm:
POLAIRE I.P.C. (13-11, Nihonbashikayabacho 2-chome Chuo-k, Tokyo 25, 〒1030025, JP)
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