To provide a plate-type water heat exchanger capable of reducing a waste material of a plate material in shaping a plate constituting a flat tube for water.
A heat exchanger 10 is a laminated plate-type water heat exchanger, and includes a flat tube 20, a flat porous tube 40 and an inlet/outlet distribution tube 50. The flat tube 20 comprises a metallic plate having a left bulging part, a right bulging part, and a connecting part. The left bulging part has a left opening for forming a left inlet/outlet part 32. The right bulging part has a right opening for forming a right inlet/outlet part 31. The connecting part is straightly extended, and connects the left bulging part and the right bulging part. Further the connecting part configures a flow channel part 23. The left bulging part and the right bulging part are disposed on positions outside of a virtual extended part of the connecting part. The shape of the left opening and the right opening formed on the left bulging part and the right bulging part is the slot shape long in the first direction in which the flow channel part 23 is extended.
KIN GENEI
FUJINO HIROKAZU
YOSHIOKA TAKASHI
KIKUNO TOMOKAZU
AOKI YUKI
OTA SHOGO
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