Nuclear fission reactor, vented nuclear fission fuel module, methods therefor and a vented nuclear fission fuel module system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G21C-003/04
G21C-019/303
G21C-001/02
G21C-003/32
G21C-017/10
G21C-003/00
출원번호
US-0653206
(2009-12-08)
등록번호
US-8929505
(2015-01-06)
발명자
/ 주소
Ahlfeld, Charles E.
Hejzlar, Pavel
Hyde, Roderick A.
Ishikawa, Muriel Y.
McAlees, David G.
McWhirter, Jon D.
Myhrvold, Nathan P.
Odedra, Ashok
Tegreene, Clarence T.
Walter, Joshua C.
Weaver, Kevan D.
Weaver, Thomas Allan
Whitmer, Charles
Wood, Jr., Lowell L.
Zimmerman, George B.
출원인 / 주소
TerraPower, LLC
대리인 / 주소
Richardson, Robert R.
인용정보
피인용 횟수 :
0인용 특허 :
56
초록▼
Disclosed embodiments include methods of assembling a vented nuclear fission fuel module. Given by way of non-limiting example and not of limitation, an illustrative method of assembling a vented nuclear fission fuel module includes receiving a nuclear fission fuel element capable of generating a ga
Disclosed embodiments include methods of assembling a vented nuclear fission fuel module. Given by way of non-limiting example and not of limitation, an illustrative method of assembling a vented nuclear fission fuel module includes receiving a nuclear fission fuel element capable of generating a gaseous fission product. A valve body is coupled to the nuclear fission fuel element, and the valve body defines a plenum therein for receiving the gaseous fission product. A valve is disposed in communication with the plenum for controllably venting the gaseous fission product from the plenum. A flexible diaphragm is coupled to the valve for moving the valve. A cap is mounted on the valve, and a manipulator extendable to the cap for manipulating the cap is received.
대표청구항▼
1. A method of assembling a vented nuclear fission fuel module, comprising: receiving a nuclear fission fuel element capable of generating a gaseous fission product;coupling a valve body to the nuclear fission fuel element, the valve body defining a plenum therein for receiving the gaseous fission p
1. A method of assembling a vented nuclear fission fuel module, comprising: receiving a nuclear fission fuel element capable of generating a gaseous fission product;coupling a valve body to the nuclear fission fuel element, the valve body defining a plenum therein for receiving the gaseous fission product;disposing a valve in communication with the plenum for controllably venting the gaseous fission product from the plenum;coupling a flexible diaphragm to the valve for moving the valve;mounting a cap on the valve; andreceiving a manipulator extendable to the cap for manipulating the cap. 2. The method of claim 1, further comprising receiving a manipulator extendable to the valve for manipulating the valve. 3. The method of claim 1, further comprising: extending an articulated manipulator arm to the plenum; andcarrying a receptacle on the articulated manipulator arm, the receptacle being engageable with the plenum for receiving the gaseous fission product from the plenum. 4. The method of claim 1, wherein disposing a valve comprises disposing a valve responsive to a parameter chosen from pressure in the plenum and a type of gaseous fission product in the plenum. 5. The method of claim 1, further comprising disposing a sensor into operative communication with the plenum. 6. The method of claim 5, wherein disposing a sensor into operative communication with the plenum comprises disposing a sensor for sensing a parameter chosen from pressure in the plenum, a type of gaseous fission product in the plenum, and a radioactive fission product in the plenum. 7. The method of claim 5, wherein disposing a sensor into operative communication with the plenum comprises disposing a sensor chosen from a radiation sensor, a chemical sensor, and an optical sensor. 8. The method of claim 5, wherein disposing a sensor into operative communication with the plenum comprises disposing a transmitter. 9. The method of claim 8, wherein disposing a transmitter comprises disposing a transmitter configured to transmit an identification signal identifying said valve body. 10. The method of claim 1, further comprising receiving a canister surrounding the fuel element. 11. The method of claim 10, wherein receiving a canister comprises receiving a canister having a bottom portion defining a first opening; andwherein receiving a canister comprises receiving a canister having a side portion defining a second opening. 12. The method of claim 11, wherein receiving a canister comprises receiving a canister having a tube sheet therein having a contour shaped for guiding a coolant along a coolant flow path extending from the first opening and through the second opening. 13. The method of claim 11, wherein receiving a canister comprises receiving a canister having a ceramic tube sheet therein for dissipating heat and having a contour shaped for guiding a coolant along a coolant flow path extending from the first opening and through the second opening. 14. The method of claim 1, further comprising coupling a reservoir to the valve for receiving the gaseous fission product vented by the valve. 15. The method of claim 14, wherein coupling the reservoir to the valve comprises coupling a filter to the reservoir for separating a condensed phase fission product from the gaseous fission product. 16. The method of claim 15, wherein coupling a filter to the reservoir for separating a condensed phase fission product from the gaseous fission product comprises coupling a filter chosen from a HEPA filter, a semi-permeable membrane, an electrostatic collector, and a cold trap. 17. The method of claim 14, wherein coupling a reservoir to the valve comprises coupling the reservoir to a reactor vessel; andwherein coupling a reservoir to the reactor vessel comprises coupling a reservoir capable of being decoupled from the reactor vessel for removing the gaseous fission product from the reactor vessel. 18. The method of claim 14, wherein coupling a reservoir to the valve comprises coupling the reservoir to a reactor vessel; andwherein coupling a reservoir to the reactor vessel comprises coupling a reservoir capable of remaining coupled to the reactor vessel for storing the gaseous fission product at the reactor vessel. 19. The method of claim 1, further comprising coupling a controller to the valve for controlling operation of the valve. 20. A method of assembling a vented nuclear fission fuel module, comprising: receiving a plurality of nuclear fission fuel element bundles capable of generating a gaseous fission product;coupling a valve body to at least one of the plurality of nuclear fission fuel element bundles, the valve body defining a plenum therein for receiving the gaseous fission product;disposing a valve in the valve body and in communication with the plenum for controllably venting the gaseous fission product from the plenum;coupling a flexible diaphragm to the valve for moving the valve;threadably mounting a removable cap on the valve; andreceiving an articulated manipulator arm extendable to the cap for threadably dismounting the cap from the valve. 21. The method of claim 20, wherein coupling a flexible diaphragm to the valve comprises coupling a flexible diaphragm capable of moving the valve to a closed position. 22. The method of claim 20, further comprising receiving an articulated manipulator arm extendable to the valve for operating the valve. 23. The method of claim 20, further comprising: receiving an articulated manipulator arm extendable to the plenum; andcarrying a receptacle on the articulated manipulator arm and engageable with the plenum for receiving the gaseous fission product controllably vented from the plenum. 24. The method of claim 20, wherein disposing a valve in the valve body comprises disposing a valve responsive to a parameter chosen from pressure in the plenum and a type of gaseous fission product in the plenum. 25. The method of claim 20, further comprising disposing a sensor into operative communication with the plenum. 26. The method of claim 25, wherein disposing a sensor comprises disposing a sensor for sensing a parameter chosen from pressure in the plenum, a type of gaseous fission product, and a radioactive fission product. 27. The method of claim 25, wherein disposing a sensor comprises disposing a sensor chosen from a radiation sensor, a chemical sensor, and an optical sensor. 28. The method of claim 25, wherein disposing a sensor comprises disposing a transmitter. 29. The method of claim 28, wherein disposing a transmitter comprises disposing a transmitter configured to transmit an identification signal identifying the valve body. 30. The method of claim 20, further comprising receiving a canister surrounding at least one of the plurality of fuel element bundles. 31. The method of claim 30, wherein receiving a canister comprises receiving a canister having a bottom portion defining a flow opening; andwherein receiving a canister comprises receiving a canister having a side portion defining a flow port. 32. The method of claim 31, wherein receiving a canister comprises receiving a canister including a tube sheet therein having a contour on an underside surface thereof shaped for guiding a coolant along a curved coolant flow path extending from the flow opening and through the flow port. 33. The method of claim 31, wherein receiving a canister comprises receiving a canister including a ceramic tube sheet therein for dissipating heat and having a contour on an underside thereof shaped for guiding a coolant along a curved coolant flow path extending from the flow opening and through the flow port. 34. The method of claim 20, further comprising coupling a reservoir to the valve for receiving the gaseous fission product vented by the valve. 35. The method of claim 34, wherein coupling a reservoir to the valve comprises coupling the reservoir to a reactor vessel; andwherein coupling a reservoir to the reactor vessel comprises coupling a reservoir capable of being decoupled from the reactor vessel for removing the gaseous fission product from the reactor vessel. 36. The method of claim 34, wherein coupling a reservoir to the valve comprises coupling the reservoir to a reactor vessel; andwherein coupling a reservoir to the reactor vessel comprises coupling a reservoir capable of remaining coupled to the reactor vessel for storing the gaseous fission product at the reactor vessel. 37. The method of claim 20, wherein coupling a reservoir to the valve comprises coupling a reservoir having a removable filter for separating and capturing a condensed phase fission product from the gaseous fission product. 38. The method of claim 37, wherein coupling a reservoir having a removable filter comprises coupling a filter chosen from a HEPA filter, a semi-permeable membrane, an electrostatic collector, and a cold trap. 39. The method of claim 20, wherein disposing a valve in the valve body comprises disposing a valve operable to controllably vent the gaseous fission product according to a predetermined release rate for minimizing size of an associated gaseous fission product clean-up system. 40. The method of claim 20, further comprising coupling a controller to the valve for controlling operation of the valve.
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