Plate heat exchanger with channels for ‘leaking fluid’
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United States of America Patent
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Oct 20, 2015
Grant Date -
Oct 25, 2012
app pub date -
Apr 25, 2011
filing date -
Apr 25, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A double-wall heat exchanger includes a plurality of heat exchange plate pairs. Each heat exchange plate pair forms a double-wall structure including two heat exchange plates that are at least partially separated by a leak space. At least one weep hole is disposed through the plurality of heat exchange plate pairs and intersects the leak spaces of the plurality of plate pairs to channel leaking fluid from the leak spaces to a location outside of the heat exchanger. The at least one weep hole is positioned on a surface of the heat exchanger at a location that is spaced from a side boundary of the heat exchanger thereby enabling an operator of the heat exchanger to observe a leakage on the surface of the heat exchanger.
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