HEAT EXCHANGER AND AIR CONDITIONER USING SAME

WIPO Patent Application WO/2018/173356

A1

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.

SASAKI SHIGEYUKI (JP)
SEKIYA SACHIO (JP)
MAITA HIROSHI (JP)
SATO DAIWA (JP)
ENDO TAKESHI (JP)
TSUKADA YOSHIHARU (JP)

PCT/JP2017/040420

September 27, 2018

November 09, 2017

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HITACHI JOHNSON CONTROLS AIR CONDITIONING INC (JP)

F25B41/00; F16L41/03; F25B39/02; F28F9/02

WO2013160952A1

2013-10-31

JP2013130386A	2013-07-04
JP2015055412A	2015-03-23
US4513587A	1985-04-30
JP2016080255A	2016-05-16
JP2010107068A	2010-05-13
JP2012137223A	2012-07-19
JPH04302964A	1992-10-26

POLAIRE I.P.C. (JP)

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