Heat exchange – Casing or tank enclosed conduit assembly – Manifold formed by casing section and tube sheet of assembly
Patent
1978-02-02
1980-09-30
Scott, Samuel
Heat exchange
Casing or tank enclosed conduit assembly
Manifold formed by casing section and tube sheet of assembly
165162, 122 32, 176 60, F28F 902, F28F 1300
Patent
active
042249830
ABSTRACT:
A heat exchange apparatus for transferring heat from a reactor gas coolant to a secondary fluid medium. The heat exchange apparatus comprises an elongated vertically extending hole in a concrete shield. Supported within the hole in spaced relation to the wall thereof is an elongated vertical extending tubular shroud which shroud has a gas entry at its lower end and a gas exit at its upper end. Means are provided for dividing the annular space between the shroud 16 and the wall of the hole into an upper and a lower region. Disposed in the shield is an inlet for reactor coolant which communicates with the lower region and is positioned vertically so as to be spaced above the gas entry to the shroud to thereby suppress natural convection during non-operating standby conditions of the apparatus. An outlet for reactor coolant, which is disposed in the shield, communicates with the upper region. A plurality of vertically extending, spaced apart bayonet tube assemblies are supported within the shroud and means are provided for passing secondary fluid through these tube assemblies. A circulator is provided for causing the reactor coolant to flow in through the inlet, downward in the annular space, into the shroud through the gas entry, upward through the shroud and out through the outlet during emergency conditions of the reactor.
REFERENCES:
patent: 3286767 (1966-11-01), Evans
patent: 3325374 (1967-06-01), Margen
patent: 3868994 (1975-03-01), Petrek
patent: 3923007 (1975-12-01), Schrader
patent: 4013121 (1977-03-01), Berger
patent: 4078899 (1978-03-01), Keller et al.
patent: 4098329 (1978-07-01), Culver
Gertsch Paul R.
McDaniels, Jr. John D.
Thurston Glenn C.
General Atomic Company
Scott Samuel
Streule, Jr. Theophil W.
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