High corrosion resistance heat exchanger
AssigneeSamsung Electronics Co., Ltd.
InventorsSungmin YOO, Myounghun KIM, Juik OH, Youngchan YOON, Sangjoe CHOI
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Abstract
A high corrosion resistance heat exchanger is disclosed, which has improved corrosion resistance. The improved corrosion resistance is achieved by controlling alloy components in a tube material and a fin material and inducing sacrificial corrosion of the fin material. The high corrosion resistance heat exchanger includes a tube having a channel formed therein to allow a refrigerant to flow, and a plurality of fins coupled to the outer circumferential surface of the tube. The fins may contain 0.1 wt % to 0.45 wt % of Mg, and 0.5 wt % to 0.8 wt % of Zn, a remainder wt % of Al.
Claims20
A high corrosion resistance heat exchanger comprising:
- a tube in which a channel is formed to allow a refrigerant to flow;
- and
- a plurality of fins coupled to an outer circumferential surface of the tube,
- wherein each fin included in the plurality of fins comprises 0.1 wt % to 0.45 wt % of magnesium (Mg), more than 0.5 wt % to 0.8 wt % or less of zinc (Zn), a remainder wt % of aluminum (Al).
A high corrosion resistance heat exchanger comprising:
- a tube extending in longitudinal direction, the tube including a channel formed therein to allow a refrigerant to flow;
- a plurality of fins coupled to an outer circumferential surface of the tube;
- and
- plate evaporators provided on both sides of the tube in a height direction extending orthogonal to the longitudinal direction,
- wherein the tube is provided so that a plurality of rows are connected in a zigzag manner, and
- wherein each fin included in the plurality of fins comprises 0.1 wt % to 0.45 wt % of magnesium (Mg), 0.1 wt % to 0.6 wt % of zinc (Zn), and remainder wt % of aluminum (Al).
A method of protecting a tube included in a heat exchanger from corrosion, the method comprising:
- forming the tube from a first weight percentage (wt %) of an alloy composition 1 to establish a first corrosion potential of the tube;
- and
- forming one or more fins included in the heat exchanger from a second weight percentage (wt %) of the alloy composition that is higher than the first weight percentage (wt %) of the heat exchanger tube to establish a second corrosion potential of the one or more fins that is lower than the first corrosion potential of the tube,
- wherein the second corrosion potential induces corrosion of the fin earlier than corrosion of the tube so as to protect the tube from corrosion.
Dependencies are inferred from the claim text.