Shell and tube heat exchanger
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United States of America Patent
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Nov 28, 2023
Grant Date -
Mar 18, 2021
app pub date -
Mar 7, 2019
filing date -
Mar 22, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A shell and tube apparatus (1) includes an outer shell (2); a first tube bundle (3) and a second tube bundle (4) coaxial with each other; a first inner shell (5) and a second inner shell (6); the first inner shell surrounds the first tube bundle and is arranged between the two tube bundles; the second inner shell surrounds the second tube bundle and is arranged in the space between the second tube bundle and the outer shell (2); the first tube bundle (3) operates as a preheater; the second tube bundle (4) operates as a boiler; the coaxial inner shells (5, 6) define a counterflow path for a hot fluid which passes through the shell side.
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