Heat exchanger system
AssigneeSulzer Brothers Limited
InventorMax Weber
Life of this patent
Estimating the term…
Abstract
The heat exchanger system is used for gas-cooled high-temperature reactors. The high-temperature primary gas passes over a nest of blind tubes and thereafter flows over the tubes of a plurality of counter-current heat-exchangers disposed about a jacket encasing the blind tubes. The cool working gas flows into the system via a header and then passes through the tubes of the counter-current heat-exchangers before passing into the blind tubes. The working gas is exhausted via insert tubes within the blind tubes. The maximum temperatures on the heat exchanger surfaces occur at the closed ends of the blind tubes. However, these parts are substantially stress free in normal operation. The heat exchanger system may be constructed to permit ready disassembly of the insert tubes for inspection and replacement purposes.
Claims14
A heat exchange system for a gas-cooled high-temperature reactor comprising
- a cylindrical jacket for guiding a flow of hot primary gas longitudinally therethrough;
- a plurality of blind tubes disposed axially within said jacket for passage of the hot primary gas thereover;
- a plurality of counter-current heat exchangers disposed about said jacket in parallel relation to said blind tubes and in communication with the flow of primary gas for passage of the primary gas thereover, each said heat exchanger having means therein for passage of a flow of working gas in counter-current to the primary gas;
- and
- a plurality of insert tubes in communication with said means of said heat exchangers, each said insert tube being disposed coaxially in a respective blind tube to define an annular gap for passage of a working gas therethrough from said heat exchanger means to the interior of said respective insert tube.
Dependencies are inferred from the claim text.