Method and system for utilizing materials of differing thermal properties to increase furnace run length
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United States of America Patent
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Dec 26, 2017
Grant Date -
Sep 11, 2014
app pub date -
Mar 6, 2014
filing date -
Mar 7, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
In one aspect, the present invention relates to a furnace having a heated portion arranged adjacent to an unheated portion. A plurality of straight tubes are formed of a first material and are at least partially disposed in the heated portion. A plurality of return bends are operatively coupled to the plurality of straight tubes. The plurality of return bends are formed of a second material and are at least partially disposed in the unheated portion. The first material exhibits a maximum temperature greater than the second material thereby facilitating increased run time of the furnace. The second material exhibits wear-resistance properties greater than the first material thereby facilitating wear-resistance of the furnace.
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