IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0094498
(2011-04-26)
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등록번호 |
US-8351562
(2013-01-08)
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발명자
/ 주소 |
|
출원인 / 주소 |
- Holtec International, Inc.
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
73 |
초록
▼
A method for storing high level radioactive waste in a passively cooled cavity. In one embodiment, the invention comprises: (a) providing a container comprising an outer shell having an open top end and a hermetically closed bottom end, an inner shell forming a cavity, the inner shell positioned wit
A method for storing high level radioactive waste in a passively cooled cavity. In one embodiment, the invention comprises: (a) providing a container comprising an outer shell having an open top end and a hermetically closed bottom end, an inner shell forming a cavity, the inner shell positioned within the outer shell so as to form a space between the inner shell and the outer shell, and at least one opening in the inner shell that forms a passageway between the space and a bottom portion of the cavity; (b) lowering a hermetically sealed canister holding high level radioactive waste into the cavity via the open top end; and (c) positioning a lid having at least one inlet vent and at least one outlet vent atop the container such that the at least one inlet vent forms a passageway from an ambient atmosphere to the space and the at least one outlet vent forms a passageway from the cavity to the ambient atmosphere, the lid substantially enclosing the open top end.
대표청구항
▼
1. A method of storing high level radioactive waste comprising: (a) providing a container comprising an inner shell forming a cavity having a top and a bottom, an outer shell surrounding the inner shell so as to form a space therebetween, a floor, the inner and outer shells extending upward from the
1. A method of storing high level radioactive waste comprising: (a) providing a container comprising an inner shell forming a cavity having a top and a bottom, an outer shell surrounding the inner shell so as to form a space therebetween, a floor, the inner and outer shells extending upward from the floor, and at least one opening in the inner shell that forms a passageway from the space into the bottom of the cavity;(b) placing a canister containing high level radioactive waste into the cavity; and(c) subsequent to step (b), positioning a lid having at least one inlet vent and at least one outlet vent atop the inner and outer shells so that the at least one inlet vent forms a passageway from an ambient atmosphere to the space and the at least one outlet vent forms a passageway from the top of the cavity to the ambient atmosphere;wherein during step (b) the lid is not positioned atop the inner and outer shells and the container has an open top end. 2. The method of claim 1 wherein the space is an annular space that circumferentially surrounds the inner shell. 3. The method of claim 1 wherein the canister is a hermetically sealed multi-purpose canister. 4. The method of storing high level radioactive waste comprising: (a) providing a container comprising an inner shell forming a cavity having a top and a bottom, an outer shell concentric with and surrounding the inner shell so as to form an annular space therebetween, the annular space circumferentially surrounding the inner shell, a floor, the inner and outer shells extending upward from the floor, and at least one opening in the inner shell that forms a passageway from the annular space into the bottom of the cavity;(b) placing a canister containing high level waste into the cavity, wherein the cavity has a horizontal cross-section that accommodates no more than one of the canister; and(c) positioning a lid having at least one inlet vent and at least one outlet vent atop the inner and outer shells so that the at least one inlet vent forms a passageway from an ambient atmosphere to the annular space and the at least one outlet vent forms a passageway from the top of the cavity to the ambient atmosphere. 5. The method of claim 1 wherein step (b) further comprises lowering the canister into the cavity through the open top end, and wherein step (c) further comprises the lid substantially enclosing the open top end of the container. 6. The method of claim 1 wherein step (c) further comprises securing the lid to the container. 7. The method of claim 1 wherein step (a) comprises positioning the container so that at least a major portion of a height of the inner and outer shells are below grade, and wherein step (b) comprises lowering the canister containing high level radioactive waste into the cavity until the entire canister is below grade. 8. A method of storing high level radioactive waste comprising: (a) providing a container comprising an inner shell forming a cavity having a top and a bottom, an outer shell concentric with and surrounding the inner shell so as to form an annular space therebetween, the annular space circumferentially surrounding the inner shell, and at least one opening in the inner shell that forms a passageway from the annular space into the bottom of the cavity, a floor, the inner and outer shells extending upward from the floor, and a lid having at least one inlet vent and at least one outlet vent positioned atop the container;(b) removing the lid from the container and placing a canister containing high level waste into the cavity; and(c) positioning the lid atop the inner and outer shells so that the at least one inlet vent forms a passageway from an ambient atmosphere to the annular space and the at least one outlet vent forms a passageway from the top of the cavity to the ambient atmosphere. 9. The method of storing high level radioactive waste comprising: (a) providing a container comprising an inner shell forming a cavity having a top and a bottom, an outer shell concentric with and surrounding the inner shell so as to form an annular space therebetween, the annular space circumferentially surrounding the inner shell, a floor, the inner and outer shells extending upward from the floor, and at least one opening in the inner shell that forms a passageway from the annular space into the bottom of the cavity;(b) positioning a transfer cask containing a canister containing high level waste above the container, and lowering the canister from the transfer cask into the cavity; and(c) positioning a lid having at least one inlet vent and at least one outlet vent atop the inner and outer shells so that the at least one inlet vent forms a passageway from an ambient atmosphere to the annular space and the at least one outlet vent forms a passageway from the top of the cavity to the ambient atmosphere. 10. A method of storing high level radioactive waste comprising: (a) providing a container comprising an outer shell having an open top end and a hermetically closed bottom end, an inner shell forming a cavity, the inner shell positioned within the outer shell so as to form a space between the inner shell and the outer shell, a floor, the inner and outer shells extending upward from the floor, and at least one opening in the inner shell that forms a passageway between the space and a bottom portion of the cavity;(b) lowering a hermetically sealed canister holding high level radioactive waste into the cavity via the open top end; and(c) subsequent to step (b), positioning a lid having at least one inlet vent and at least one outlet vent atop the container such that the at least one inlet vent forms a passageway from an ambient atmosphere to the space and the at least one outlet vent forms a passageway from the cavity to the ambient atmosphere, the lid substantially enclosing the open top end. 11. The method of claim 10 wherein during step (b) the lid is not positioned atop the container, and wherein step (b) further comprises lowering the canister into the cavity through the open top end. 12. The method of claim 10 wherein step (a) comprises positioning the container so that at least a major portion of a height of the inner and outer shells are below grade, and wherein step (b) comprises lowering the canister of high level radioactive waste into the cavity until the entire canister is below grade. 13. A method of storing high level radioactive waste comprising: (a) providing a container comprising an outer shell having an open top end and a hermetically closed bottom end, an inner shell forming a cavity, the inner shell positioned within the outer shell so as to form a space between the inner shell and the outer shell, a floor, the inner and outer shells extending upward from the floor, and at least one opening in the inner shell that forms a passageway between the space and a bottom portion of the cavity;(b) lowering a hermetically sealed canister holding high level radioactive waste into the cavity via the open top end, wherein the cavity has a cross-section that accommodates no more than one of the canisters; and(c) positioning a lid having at least one inlet vent and at least one outlet vent atop the container such that the at least one inlet vent forms a passageway from the ambient atmosphere to the space and the at least one outlet vent forms a passageway from the cavity to the ambient atmosphere, the lid substantially enclosing the open top end. 14. The method of claim 10 wherein the space is a continuous annular space that circumferentially surrounds the inner shell. 15. A method of storing high level radioactive waste comprising: (a) providing a container comprising an outer shell having a hermetically closed bottom end, an inner shell forming a cavity, the inner shell positioned within the outer shell so as to form a space between the inner shell and the outer shell, a floor, the inner and outer shells extending upward from the floor, and at least one opening in the inner shell that forms a passageway between the space and a bottom portion of the cavity, and a lid having at least one inlet vent and at least one outlet vent positioned atop the container;(b) removing the lid from the container and lowering a hermetically sealed canister holding high level radioactive waste into the cavity via an open top end of the container; and(c) positioning the lid atop the container such that the at least one inlet vent forms a passageway from an ambient atmosphere to the space and the at least one outlet vent forms a passageway from the cavity to the ambient atmosphere, the lid substantially enclosing the open top end.
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