WATER HEAT EXCHANGER, MANUFACTURING METHOD OF WATER HEAT EXCHANGER, AND REFRIGERATION CYCLE APPARATUS
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United States of America Patent
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Issued Date -
Oct 20, 2022
app pub date -
Jul 22, 2020
filing date -
Sep 4, 2019
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Abstract
To provide a water heat exchanger, a manufacturing method of the water heat exchanger, and a refrigeration cycle apparatus capable of preventing corrosion of a brazing material and deterioration of a refrigerant. The water heat exchanger according to the present embodiment includes a plurality of stacked heat-exchange plates, a joint (9) provided on at least one cover plate (14) of a pair of cover plates sandwiching the plurality of heat exchange plates, a first refrigerant pipe (10) brazed to the joint (9) by a brazing material (11), and a protector (12) provided to prevent contact between the brazing material (11) and the refrigerant circulating to the plurality of heat exchange plates through the first refrigerant pipe (10) and the joint (9).
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