Nuclear steam system containment
AssigneeThe Babcock & Wilcox Company
InventorFelix S. Jabsen
Life of this patent
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Abstract
An improved containment for radiation shielding and pressure suppression is presented. The arrangement, which is particularly suited for marine propulsion application, includes, in a preferred embodiment, a double wall containment shell including water as a biological shield, a divided wet well arrangement and means for precluding discontinuity of the radiation shielding effect due to shifting of the liquid in the wet well at various ship attitudes.
Claims38
An improved containment used for radiation shielding and pressure suppression comprising a dry well including a pressure vessel, a plurality of cocentric wall means, said plurality of cocentric wall means defining at least three annular regions about said dry well, a first annular region providing the containment used for radiation shielding, a second annular region which is substantially dry, a third annular region providing a wet well for relieving fluid pressure released from the pressure vessel into the dry well, and pipe connection means extending into the wet well from the dry well, a pool of liquid disposed to partially fill said third annular region, the upper and portion of the second and third annular regions having an enclosure, and a plurality of baffle plates extending vertically downward from said enclosure in said third annular region into said pool of liquid so as to circumferentially divide the upper portion of said third annular region into a plurality of circumferential upper portions.
An improved containment used for radiation shielding and pressure suppression in marine propulsion applications comprising a dry well including a pressure vessel, a plurality of cocentric wall means, said plurality of cocentric wall means defining at least three annular regions about said dry well, a first annular region providing the containment used for radiation shielding, a second annular region which is substantially dry, a third annular region providing a wet well for relieving fluid pressure released from the pressure vessel into the dry well, and pipe connection means extending into the wet well from the dry well, a pool of liquid disposed to partially fill the third annular region, the upper and portion of the second and third annular regions having an enclosure, and a plurality of baffle plates extending vertically downward from said enclosure in said third annular region into the pool of liquid so as to circumferentially divide the upper portion of the third annular region into a plurality of circumferential upper portions.
An improved containment used for radiation shielding and pressure suppression comprising a dry well including a pressure vessel, a plurality of cocentric wall means, said plurality of cocentric wall means defining at least three annular regions about said dry well, a first annular region providing the containment used for radiation shielding, a second annular region which is substantially dry, a third annular region providing a wet well for relieving fluid pressure released from the pressure vessel into the dry well, and pipe connection means extending into the wet well from the dry well, a pool of liquid disposed to partially fill the third region, the upper and portion of the second and third annular regions having an enclosure, and a plurality of baffle plates extending vertically downward from said enclosure in said third region into the pool of liquid so as to divide the upper portion of the third region into a plurality of spaced upper portions.
Dependencies are inferred from the claim text.