Heat exchanger

Details Heat exchanger Heat exchanger

2005-01-11

2005-01-11

McKinnon, Terrell (Department: 3743)

Heat exchange

Expansion and contraction relieving or absorbing means

C165S162000, C165S160000

Reexamination Certificate

active

06840309

ABSTRACT:
A heat exchanger comprising a pressure vessel (1). A plurality of serpentines (8) convey a fluid to be heated through the pressure vessel (1) in one direction. A duct (9) surrounding the serpentines (8) conveys a second fluid in the opposite direction to give up its heat to the first fluid. The duct (9) is spaced from the pressure vessel (1) and is surrounded with thermal insulation (23). An opening in the duct (9) equalizes the pressure between the inside and the outside of the duct (9) which is also supported against expansion caused by the pressure inside the duct (9) exceeding the pressure outside the duct (9).

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