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1.发明公开公开(公告)号：US20230400046A1
公开(公告)日：2023-12-14
申请号：US18455542
申请日：2023-08-24
申请人： Sichuan University
发明人： Wenqiang LI , Yingdong LIU , Hai XIANG , Jiahao CHEN , Yingxin ZHAO , Jiawei WANG
摘要： A quick-detachable connecting device with a simplified thread structure includes a top nozzle, a connecting tube sleeve, a locking tube and a locking piece. The top nozzle is provided with a through hole, in which the connecting tube sleeve is assembled. The locking tube is accommodated in the through hole. An outer peripheral surface of the locking tube is provided with a second stopping structure, and an inner peripheral surface of the connecting tube sleeve is provided with a first stopping structure fitting the second stopping structure. The locking piece is movably arranged on the locking tube for circumferentially limiting or releasing the locking tube. A connection method using such connecting device is also provided.
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公开(公告)号：US20220148746A1
公开(公告)日：2022-05-12
申请号：US17094850
申请日：2020-11-11
申请人： GRANT CHARTERS , SUDESH AGGARWAL
发明人： GRANT CHARTERS , SUDESH AGGARWAL
摘要： Disclosed is a process method and system for upfront sampling and characterization to selectively and representatively sample for activation levels of nuclear reactor core irradiated metal alloy internal components using a specialized robust hard metal reactor bit hollow tungsten carbide sampling head in conjunction with bespoke angled sampling gantry. The invention relates to the field of a nuclear reactor metal alloy vacuum hollow sampling head, sampling gantry, and retrieval system. The nuclear-activated metal alloys are drilled and sampled using a TruProBit® metal cutting drill bit. The long hollow drill bit with a hollow metal sampling head traverses the nuclear reactor metal layers and void spaces to cut and retrieve only metal alloy samples. The dry vacuumed airflow picks up the discrete incremental sample of metal filings, chips, and dust produced by the hollow metal cutting edges of the sampling head into a filter and then analyzed for radionuclides of concern.
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公开(公告)号：US20220108809A1
公开(公告)日：2022-04-07
申请号：US17554967
申请日：2021-12-17
申请人： NuScale Power, LLC
发明人： Michael Keller , Ross I. Snuggerud
摘要： An in-core instrumentation system for a reactor module includes a plurality of in-core instruments connected to a containment vessel and a reactor pressure vessel at least partially located within the containment vessel. A reactor core is housed within a lower head that is removably attached to the reactor pressure vessel, and lower ends of the in-core instruments are located within the reactor core. The in-core instruments are configured such that the lower ends are concurrently removed from the reactor core as a result of removing the lower head from the reactor pressure vessel.
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公开(公告)号：US11037689B2
公开(公告)日：2021-06-15
申请号：US16075420
申请日：2017-02-10
申请人： FRAMATOME
发明人： Serge Roillet , Julien Valero
摘要： A repair device for underwater repair of a hole in a nuclear reactor part includes a holder (32), a cutting tool (22) held by the holder (32) and having at least one cutting tooth (70) for remachining an inner surface of the hole. The cutting tool (22) has a suction channel (44) extending into the cutting tool (22) between at least one inlet opening (46) and at least one outlet opening (48), a drive shaft (34) for rotating the cutting tool (22), the drive shaft (34) being held by the holder (32), and a suction tube (36) connected to the holder (32) and fluidly connected to the outlet opening (48) of the suction channel (44).
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5.发明授权公开(公告)号：US10692614B2
公开(公告)日：2020-06-23
申请号：US15774486
申请日：2016-11-17
发明人： Frédéric Gaulupeau
IPC分类号： F16L37/086 , G21C19/02 , F16L37/10 , G01K1/08 , G01K7/02 , G21C17/112
摘要： The invention relates to a sealing device (30) intended to be fixed against an edge of a tube and against a column. According to the invention, the body (3060) thereof comprises guides (3030), distributed around its cavity (316) between an inner side (3064) that opens into the cavity (316) and an outer side (3062) that opens out against a concentric clamping ring (305), mounted so as to rotate about the axis (A), fingers (303) integral with outer actuating members (3031) being guided in the guides (3030), the ring (305) having actuating zones (3051) that are able to be positioned against the members (3031) so as make the fingers (303) protrude into the cavity (316) by sliding in order to clamp the fingers (303) against the edge of the tube when the ring (305) and the base (306) are in a first position of relative rotation, the ring (305) and the base (306) being able to pass, by rotation about the axis (A), between the first position and a second position in which the zones (3051) are spaced apart from the members (3031) so as to allow the fingers (303) to be returned into the body (3060).
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公开(公告)号：US20200051704A1
公开(公告)日：2020-02-13
申请号：US16599758
申请日：2019-10-11
申请人： NuScale Power, LLC
发明人： Michael KELLER , Ross I. SNUGGERUD
摘要： An in-core instrumentation system for a reactor module includes a plurality of in-core instruments connected to a containment vessel and a reactor pressure vessel at least partially located within the containment vessel. A reactor core is housed within a lower head that is removably attached to the reactor pressure vessel, and lower ends of the in-core instruments are located within the reactor core. The in-core instruments are configured such that the lower ends are concurrently removed from the reactor core as a result of removing the lower head from the reactor pressure vessel.
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7.发明申请公开(公告)号：US20190341159A1
公开(公告)日：2019-11-07
申请号：US15774486
申请日：2016-11-17
发明人： Frédéric GAULUPEAU
IPC分类号： G21C19/02 , G01K1/08 , G01K7/02 , F16L37/086 , F16L37/10
摘要： The invention relates to a sealing device (30) intended to be fixed against an edge of a tube and against a column. According to the invention, the body (3060) thereof comprises guides (3030), distributed around its cavity (316) between an inner side (3064) that opens into the cavity (316) and an outer side (3062) that opens out against a concentric clamping ring (305), mounted so as to rotate about the axis (A), fingers (303) integral with outer actuating members (3031) being guided in the guides (3030), the ring (305) having actuating zones (3051) that are able to be positioned against the members (3031) so as make the fingers (303) protrude into the cavity (316) by sliding in order to clamp the fingers (303) against the edge of the tube when the ring (305) and the base (306) are in a first position of relative rotation, the ring (305) and the base (306) being able to pass, by rotation about the axis (A), between the first position and a second position in which the zones (3051) are spaced apart from the members (3031) so as to allow the fingers (303) to be returned into the body (3060).
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公开(公告)号：US20190299301A1
公开(公告)日：2019-10-03
申请号：US16345720
申请日：2017-11-07
发明人： Fritz Ziegelmeyer
摘要： The present disclosure relates to a drilling instrument for machining tubes in tube sheets of heat exchangers in a radioactive environment, comprising a transport device having clamping elements and having a drilling device with clamping fingers, which are arranged in each case on a common first side. The transport device and the drilling device are connected to a support device having a support plate on which a resting plate of the drilling device rests. In addition, the support plate is connected to the resting plate by way of at least one movable connecting element, and the resting plate is connected to the support plate in a play-free manner in a first position of the connecting element, wherein the resting plate exhibits predefinable play with regard to the carrier plate in a second position of the connecting element.
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公开(公告)号：US10304576B2
公开(公告)日：2019-05-28
申请号：US15376173
申请日：2016-12-12
发明人： Steven K. Waisanen
摘要： A transfer system for spent fuel canisters includes a carrier, a shielded bell trolley movable along the carrier and carrying a shielded bell, and a canister trolley movable along the carrier and carrying a lifting mechanism for raising and lowering the spent fuel canister into and out of the shielded bell. The canister trolley can move along the carrier independent of the shielded bell trolley and the shielded bell trolley can move along the carrier independent of the canister trolley. The shielded bell trolley and the canister trolley can be selectively interlocked for selected transfer operations.
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公开(公告)号：US10186335B2
公开(公告)日：2019-01-22
申请号：US14798730
申请日：2015-07-14
发明人： David Platt Ketcham
IPC分类号： G21C19/02 , G21C19/20 , G21C19/19 , G21C17/007 , G21C17/013 , G21C17/017 , G21C7/12
摘要： An automated high speed under vessel work platform with three automated axes comprising a 360° rotational horizontal axis, a linear horizontal axis via a traversing trolley, and a linear vertical axis via swappable task robots, which can also add fourth and fifth axes capabilities. The automated high speed under vessel work platform has the ability to drive to a specific location by typing the core location into the control software. The work platform can be operated manually via a hand wheel, or locally via a handheld pendant or from the control room. The work platform also has a camera for inspections and verification of the work.
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