| 摘要 |
1537006 Fast reactor COMMISSARIAT A L'ENERGIE ATOMIQUE 23 March 1977 [29 March 1976 4 May 1976] 12260/77 Heading G6C In a fast reactor cooled by liquid metal, each heat exchanger 12 has an annular shape defined by inner and outer shells 28, 29, arranged around hot metal inlet conduit 21 and includes a plurality of heat transfer tubes 34 which are arranged in concentric circles between the shells and which extend vertically over the greater part of their length between upper and lower tube plates 36, 35 which, in conjunction with the shells, define outlet and inlet manifolds for an intermediate coolant fluid. The heat exchanger is connected to an inner, hot coolant, vessel by conduit 21 which comprises two concentric parts 24, 25 which are sealed together by liquid metal in the space 26 between them, the level in the space 26 being maintained by inert gas pressure in space 30. The space between the wall 17 of the inner vessel and a baffle 40 may be filled with stagnant liquid metal or by a flow of cool liquid metal, and the conduit 21 may be surrounded by stagnant liquid metal, Fig. 3 (not shown). The heat transfer tubes 34 may be bent outwardly or inwardly through 90 degrees adjacent their lower ends, Fig. 4, (not shown).
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