WO2020111964A1 - Система ультразвукового контроля надзонного пространства ядерного реактора - Google Patents
Система ультразвукового контроля надзонного пространства ядерного реактора Download PDFInfo
- Publication number
- WO2020111964A1 WO2020111964A1 PCT/RU2018/000913 RU2018000913W WO2020111964A1 WO 2020111964 A1 WO2020111964 A1 WO 2020111964A1 RU 2018000913 W RU2018000913 W RU 2018000913W WO 2020111964 A1 WO2020111964 A1 WO 2020111964A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylindrical rods
- ultrasonic
- axis
- space
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
- G21C17/022—Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
- G21C17/025—Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators for monitoring liquid metal coolants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/003—Remote inspection of vessels, e.g. pressure vessels
- G21C17/007—Inspection of the outer surfaces of vessels
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/222—Constructional or flow details for analysing fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/27—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the material relative to a stationary sensor
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02854—Length, thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/102—Number of transducers one emitter, one receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/262—Linear objects
- G01N2291/2626—Wires, bars, rods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Definitions
- the invention relates to nuclear technology and can be used to monitor the state of the overhead space of a nuclear reactor with a liquid metal coolant.
- the principle of operation of the ultrasonic monitoring system is based on the excitation and response of ultrasonic signals reflected from structural elements located in the space (controlled gap) between the upper level of the heads of the fuel assemblies and the lower level of the rotary plugs of a nuclear reactor cooled by an opaque coolant, for example, liquid sodium. This system is used for detection in a controlled space.
- Systems in which a scanning ultrasound beam propagates in the horizontal direction refers to horizontal sound vision systems. They are designed to obtain analogs of the optical image of objects located or trapped in the oversized space of reactors cooled by opaque liquid metal coolants.
- the control of optically opaque overhead spaces in reactors can be accomplished through the use of ultrasonic waves propagating in liquid metal coolants.
- ultrasonic signals are applicable in reactors with opaque heat carriers (sodium, lead, etc.) and can provide analogs of the optical image of objects with good resolution.
- a special reactor is installed in a nuclear reactor reflector of ultrasound and by decreasing the signal from it, one judges the presence of an object falling into the zone of action of the ultrasound beam.
- control systems for the overhead space of a reactor are developed taking into account the design of a particular reactor and cannot be transferred to another reactor without certain alterations related to adaptation to the design features of the overhead space of each specific apparatus.
- the device comprises an ultrasonic transducer located on a rod connected to an ultrasonic generator and, through an amplifier, with a signal processing and identification device, an ultrasound reflector.
- the rod is rotated with an ultrasonic transducer with a constant angular velocity and is moved in height after each revolution. During one revolution, ultrasonic pulses are sequentially emitted, and reflected reflected in the gaps between them.
- a known system of ultrasonic monitoring of the position of structural elements in the overhead space of a nuclear reactor with a liquid metal coolant (US patent Ns 4290849), including an ultrasonic transducer for emitting and receiving a pulsed ultrasonic signal, means for rotating the sensor at a given angle, reflectors, primary and secondary, having several planes oriented in the scanning direction, means for supplying power to the transducer; and means for displaying the ultrasonic signal.
- the incident ultrasonic wave is sequentially reflected from the additional ultrasound reflector, the main reflector and the object (if there is one) located in the gap between the CPS bodies and the fuel assembly heads, and then returns to the ultrasonic transducer along the already traveled path.
- the planes of the reflectors are placed at different distances from the transducer.
- two segments of straight lines corresponding to the path of the ultrasound beam from the ultrasound source to the ultrasound reflector and from the ultrasound reflector to the ultrasound receiver are indicated as the location of the detected obstacle, and no answer is given on which of the segments the obstacle is located.
- the objective of this technical solution is to increase the reliability of detection of obstacles in a controlled oversized space and to determine the location.
- an ultrasonic control system for the overhead space of a nuclear reactor with a liquid metal coolant including an ultrasound reflector and a scanning ultrasonic mechanism with drives, containing a support rod with hermetic ultrasonic transducers, the acoustic axis of which coincides with one of the horizontal planes crossing the space filled with the liquid metal coolant controlled gap between the lower marks of the disengaged organs of the CPS and the upper marks of the heads of the fuel assemblies
- the ultrasound reflector is made in the form of a ring on which at least one row of vertical cylindrical rods, the ring is attached to one of the heat shields surrounding the active zone, mainly closest to the body of the nuclear reactor, moreover, the step with which the cylindrical rods are located in a row is less than the step between the assemblies (step of the reactor grating).
- an ultrasound reflector (rings with cylindrical rods) on a heat shield located at the closest distance from the reactor vessel provides control of the position of standard structures and detection of obstacles to rotation of the rotary plugs in the entire controlled volume of the overhead space.
- Cylindrical rods are arranged in rows at equal distances from the center of this ring and evenly around its circumference (for the convenience of automatically controlling the level of the reflected signal when an ultrasound beam scans an ultrasound reflector from a central cell):
- the height of the cylindrical rods is such that they cover the entire gap between the upper level of the heads of the fuel assemblies and the lower level of the rotary plugs of the reactor and the lower marks of the disconnected organs of the CPS, and provide the ability to perform layer-by-layer scanning in the entire controlled space.
- One of the cylindrical rods is located on the selected
- the distance from the center of this ring is uniquely determined by ultrasonic scanning by the time of arrival of the echo pulse. It is convenient to take the direction of the axis of the ultrasonic transducer to this rod as the reference point for the rotation angle of the ultrasonic transducer to use to more accurately calculate the angles of rotation in the scanning process.
- the step with which the cylindrical rods are located on the ring in a row is less than the step between the assemblies. Otherwise (at a larger step) those pop-up assemblies will not be detected which, when scanned by an ultrasound beam of an ultrasound reflector, will appear in the lumen between the cylindrical rods.
- the pop-up assembly does not overlap the entire controlled gap, and is included in it only by the upper narrow part (head) to the height of one layer of ultrasonic scanning, the shadow from the head may fall into the lumen between the cylindrical rods, and the ascent will not be detected by the system.
- the cylindrical rods of the next row are located in the lumen between the cylindrical rods of the previous row.
- one of the cylindrical rods is located at a selected (smaller or larger relative to the rest of the rods) distance from the center of this ring.
- the cylindrical rods are mounted on the ring so that they are on the extensions of the lines passing through the center of the active zone and the centers of the heads of the distant fuel assemblies.
- the lateral surface of the cylindrical rods is made rough, for example, in the form of a crosswise knurling, which increases the reflectivity of the cylindrical rods and ensures the return of the ultrasonic signal to the ultrasonic transducer regardless of its location (in the center or on the periphery of the controlled space) during the control process.
- At least one conical recess with a right angle at the apex ending in a through hole the axis of which coincides with the axis of the conical recess and the axis direction of the ultrasonic transducer and forms a right angle with the axis of the cylindrical rods, as an angular reflector on the lateral surface of cylindrical rods.
- the cylindrical rods can be arranged in the form of two (or more) annular rows offset relative to each other so that the rods of the outer row are relative to the direction of the center of the ring between adjacent rods of the inner row.
- Scanning ultrasonic mechanism with drives including a supporting rod with sealed ultrasonic transducers (emitter and receiver of ultrasonic signals) b they are installed in the space located under the fuel assembly overload channel located on the periphery of the small rotary plug of the reactor, or in the space freed up after removing the embedded pipe from the reactor, designed to be placed in the center of the active zone of the loop channel or other irradiation device.
- the cylindrical rods are mounted on the ring with a certain step, so that when they are alternately scanned, the ultrasonic signals reflected from neighboring rods and reaching the ultrasonic transducer overlap in space at least at a level of 0.707 in order to prevent the loss of an informative signal about the presence of an obstacle in space between directions to adjacent rods, for example, about the presence of a pop-up assembly.
- the step between the cylindrical rods is associated with the step between the assemblies and the diameter of the ultrasound beam at a level of 0.707, depending on the device of the transducer, the ultrasound frequency used, its propagation velocity in the medium, and the distance to the irradiated object, i.e. to neighboring rods, namely, the step between the cylindrical rods is set less than the step between the assemblies and is selected so that the ultrasonic rays reflected from neighboring rods overlap on the receiving surface of the ultrasonic transducer.
- FIG. 1 shows a vertical section of a reactor with elements of a sound vision system located outside the rotary plugs, where:
- FIG. 2 shows a horizontal section of a reactor with elements of an ultrasonic control system for the overhead space of a nuclear reactor located outside of rotary plugs, where:
- FIG. 3 shows a horizontal section of a nuclear reactor with elements of an ultrasonic space monitoring system, where:
- FIG. Figures 4-7 show different versions of conical recesses on the lateral surface of cylindrical rods, which is especially important for large reactors (core diameter 4 - 9 m).
- the device operates as follows.
- Ultrasonic transducers 12 and 13 emit in the liquid metal coolant 9 a sequence of ultrasonic signals propagating along liquid metal coolant 9 along the acoustic axis of each ultrasonic transducer, localized in space in the form of an ultrasonic beam, and during the time intervals between successively excited ultrasonic signals receive response ultrasonic signals reflected from structural elements located in the superzone of the nuclear reactor, namely, in a controlled the gap between the upper level of the heads of the fuel assemblies and the lower level of the rotary plugs (lower marks of the devices mounted on the rotary plugs).
- the ultrasonic transducer 12 By reducing the amplitude of the echo signals from the cylindrical rods 4 (the so-called bottom signals), one judges the presence of an obstacle shading the ultrasonic beam, and by the presence of an echo received in the time interval between the emitted and bottom signals, one concludes that there is an object with a surface that reflects part of the ultrasonic energy beam in the opposite direction. Fixing the ultrasonic transducer 12 at different heights and simultaneously rotating the probe 8, perform layer-by-layer scanning of the overhead space with an ultrasonic beam.
- FIG. 1 An example of the stationary placement of the sonic probe 8 in the reactor is shown in FIG. 1 and 2, an example of a removable embodiment is shown in FIG. 3.
- Ultrasonic Position Monitoring System of structural elements in the overhead space of a nuclear reactor is put into operation on a stopped reactor before overloading the core assemblies in order to confirm the absence of mechanical connection between the rotary plugs and the core.
- the ultrasonic transducer 12 When the sound-sensing probe 8 is stationary in the reactor, the ultrasonic transducer 12 emits a sequence of ultrasonic signals into the liquid metal coolant 9 and receives reflected signals coming in the opposite direction (an echo signal from one of the cylindrical rods 4 (“bottom” signal) and echo signals from objects that are in the way ultrasonic beam, such as unshocked organs of the CPS, the head or body of a pop-up or unfilled fuel assembly, hand bells, manipulation tools and foreign objects.
- the location of an object caught in the path of an ultrasonic beam is determined by the time of propagation of the echo signal and the azimuth of the ultrasonic transducer 12.
- this object doesn’t create an echo signal emitted from the background noise, it is detected by decreasing the amplitude of the “bottom” signal, and only the azimuth of the ultrasonic transducer 12 is used to determine the location. If a significant decrease in the amplitude is detected
- the "bottom” signal recorded when scanning the overhead space with an ultrasonic transducer 13, the intersection of the ultrasonic rays corresponding to the recorded azimuths indicates the most probable location of the object.
- the cylindrical rods 4 are oriented by the axes of the conical recesses to the axis of the ultrasonic transducer, and the angle at the top of the conical recesses is made direct to provide a mirror reflection of the scanning beam (Fig. 6).
- the axes of the conical recesses of the cylindrical rods 4 located in sector B are directed alternately: even — to the ultrasonic transducer 12, odd — to the ultrasonic transducer 13.
- the axes of the conical recesses of the cylindrical rods 4 located in sector G are directed to the ultrasonic transducer 13.
- the axes of the conical recesses cylindrical rods 4 located in sector B are directed alternately: even - to the converter 13, odd - to the converter 12.
- the axis of the conical recesses of the cylindrical rods 4 located in sector A are directed to the converter 12.
- the ultrasound reflector made in the form of a discontinuous row of cylindrical rods, provides a more accurate calculation of the angle of rotation of the transducer than the ultrasound reflector, made continuous, in the form of a continuous cylindrical screen.
- the step between the cylindrical rods should be commensurate with the step of the reactor lattice, and the diameter of the cylindrical rods with the diameter of the fuel assembly head.
- the diameter of the focal spot in which the main energy of the ultrasound beam is concentrated, it is advisable to choose commensurate with the apparent size of the conical recess. It depends on the size of the ultrasonic transducer, the ultrasound frequency used, the propagation velocity of the ultrasound in the medium, and the distance to the cylindrical rod.
- the minimum allowable pitch between cylindrical rods covered simultaneously with a focal spot corresponds to the Pearson criterion, according to which the echo signals from these rods are considered distinguishable. If the totality of influencing factors is such that echoes from neighboring cylindrical rods are difficult to distinguish, then the step between adjacent rods is increased, add a second row of such rods located on a concentric circle of a larger diameter in the gaps between the rods of the first row.
- the ultrasonic transducers 12 and 13 are installed in the central 14 and reloading 15 channels, respectively.
- large rotary plug 1 and small rotary plug 2 are shown conditionally.
- the cylindrical rods 4 can be made smooth with a conical recess oriented to the central channel 14, or with a part of the side surface free of a conical recess with a straight flange at the apex, and embossed, for example, in the form of a cross-shaped knurling (Figs. 5-7).
- the use of a relief form for the lateral surface of cylindrical rods makes it possible to use the mirror-shadow method for an ultrasonic transducer 13 located in a reloading 15 or any other channel suitable for installing the probe 8.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
Claims
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/297,403 US20220005620A1 (en) | 2018-11-26 | 2018-12-29 | Ultrasonic monitoring system of the nuclear reactor above core space |
| CN201880099770.2A CN113196417B (zh) | 2018-11-26 | 2018-12-29 | 核反应堆参考空间超声控制系统 |
| EP18941754.6A EP3916739B1 (en) | 2018-11-26 | 2018-12-29 | Nuclear reactor with system for ultrasonic monitoring of a space above the core of the nuclear reactor |
| BR112021010239-6A BR112021010239B1 (pt) | 2018-11-26 | 2018-12-29 | Sistema para monitoramento ultrassônico de um espaço acima do núcleo de um reator nuclear |
| JP2021529482A JP7261299B2 (ja) | 2018-11-26 | 2018-12-29 | 炉心直上空間の超音波検査システム |
| CA3121704A CA3121704A1 (en) | 2018-11-26 | 2018-12-29 | Ultrasonic monitoring system of the nuclear reactor above core space |
| KR1020217019484A KR102632149B1 (ko) | 2018-11-26 | 2018-12-29 | 원자로의 코어 공간에 대한 초음파 모니터링 시스템 |
| ZA2021/05388A ZA202105388B (en) | 2018-11-26 | 2021-07-29 | System for ultrasonic monitoring of a space above the core of a nuclear reactor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2018141726A RU2697664C1 (ru) | 2018-11-26 | 2018-11-26 | Система ультразвукового контроля надзонного пространства ядерного реактора |
| RU2018141726 | 2018-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020111964A1 true WO2020111964A1 (ru) | 2020-06-04 |
Family
ID=67640614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2018/000913 Ceased WO2020111964A1 (ru) | 2018-11-26 | 2018-12-29 | Система ультразвукового контроля надзонного пространства ядерного реактора |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20220005620A1 (ru) |
| EP (1) | EP3916739B1 (ru) |
| JP (1) | JP7261299B2 (ru) |
| KR (1) | KR102632149B1 (ru) |
| CN (1) | CN113196417B (ru) |
| CA (1) | CA3121704A1 (ru) |
| RU (1) | RU2697664C1 (ru) |
| WO (1) | WO2020111964A1 (ru) |
| ZA (1) | ZA202105388B (ru) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137084B (zh) * | 2021-11-26 | 2022-08-12 | 合肥聚能电物理高技术开发有限公司 | 一种east下偏滤器钨铜串的超声检测装置及方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290849A (en) * | 1977-10-26 | 1981-09-22 | Tokyo Shibaura Denki Kabushiki Kaisha | Nuclear reactor |
| SU1528235A1 (ru) * | 1987-12-21 | 1994-05-30 | Ю.П. Гребенкин | Устройство звуковидения ядерного реактора с жидкометаллическим теплоносителем |
| JP2000009702A (ja) * | 1998-06-24 | 2000-01-14 | Mitsubishi Heavy Ind Ltd | 超音波探傷装置 |
| RU29397U1 (ru) * | 2002-12-23 | 2003-05-10 | Федеральное государственное унитарное предприятие "Научно-исследовательский и конструкторский институт энерготехники им. Н.А.Доллежаля" | Ультразвуковое устройство для контроля положения перегрузочной машины ядерного реактора с жидкометаллическим теплоносителем |
| JP2010271319A (ja) * | 2009-05-25 | 2010-12-02 | Korea Atomic Energy Research Inst | ウェーブガイド超音波センサ装置 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4083225A (en) * | 1974-09-20 | 1978-04-11 | The United States Of America Government As Represented By The United States Department Of Energy | On-line ultrasonic gas entrainment monitor |
| JPS5834799B2 (ja) * | 1977-12-21 | 1983-07-28 | 株式会社東芝 | 原子炉 |
| JPS60219553A (ja) * | 1984-04-16 | 1985-11-02 | Toshiba Corp | 超音波透視装置 |
| JPS61140813A (ja) * | 1984-12-14 | 1986-06-27 | Toshiba Corp | 超音波透視装置 |
| JPS6446694A (en) * | 1987-08-17 | 1989-02-21 | Power Reactor & Nuclear Fuel | Device for diagnosing abnormality of nuclear reactor |
| JPH0634076B2 (ja) * | 1988-12-26 | 1994-05-02 | 株式会社東芝 | 超音波透視装置 |
| JPH05296985A (ja) * | 1992-04-21 | 1993-11-12 | Hitachi Constr Mach Co Ltd | 超音波用反射器 |
| FR2738636B1 (fr) * | 1995-09-08 | 1997-11-28 | Framatome Sa | Dispositif de controle non destructif par ultrasons d'une piece de forme allongee comportant un transducteur d'ultrasons et un miroir, et ses utilisations |
| DE102009047317A1 (de) * | 2009-10-01 | 2011-04-07 | Intelligendt Systems & Services Gmbh | Verfahren und Vorrichtung zur Ultraschallprüfung |
| JP2012078259A (ja) * | 2010-10-04 | 2012-04-19 | Mitsubishi Heavy Ind Ltd | 炉心頂部監視装置 |
| US9117554B2 (en) * | 2010-12-02 | 2015-08-25 | Ge-Hitachi Nuclear Energy Americas Llc | Core shroud weld inspection systems and methods |
| RU2513956C1 (ru) * | 2012-12-27 | 2014-04-20 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Способ строительства многозабойной скважины и отклоняющее устройство для его осуществления |
| EP2843401A1 (en) * | 2013-08-30 | 2015-03-04 | Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO | System and method for defect monitoring |
| RU2594889C1 (ru) * | 2015-05-29 | 2016-08-20 | Общество с ограниченной ответственностью "Научно-технический центр инноваций" | Ядерный реактор |
| RU2657325C1 (ru) * | 2017-06-05 | 2018-06-13 | Общество с ограниченной ответственностью "Акустические Контрольные Системы" | Способ ультразвукового контроля объектов из твёрдых материалов, ультразвуковой высокочастотный преобразователь для его реализации (варианты) и антенная решётка с применением способа |
| KR102112595B1 (ko) * | 2018-08-21 | 2020-06-02 | 앤스코 주식회사 | 스터드 볼트 검사 장치 및 이의 장착 방법 |
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2018
- 2018-11-26 RU RU2018141726A patent/RU2697664C1/ru active
- 2018-12-29 KR KR1020217019484A patent/KR102632149B1/ko active Active
- 2018-12-29 CA CA3121704A patent/CA3121704A1/en active Pending
- 2018-12-29 US US17/297,403 patent/US20220005620A1/en not_active Abandoned
- 2018-12-29 WO PCT/RU2018/000913 patent/WO2020111964A1/ru not_active Ceased
- 2018-12-29 JP JP2021529482A patent/JP7261299B2/ja active Active
- 2018-12-29 CN CN201880099770.2A patent/CN113196417B/zh active Active
- 2018-12-29 EP EP18941754.6A patent/EP3916739B1/en active Active
-
2021
- 2021-07-29 ZA ZA2021/05388A patent/ZA202105388B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290849A (en) * | 1977-10-26 | 1981-09-22 | Tokyo Shibaura Denki Kabushiki Kaisha | Nuclear reactor |
| SU1528235A1 (ru) * | 1987-12-21 | 1994-05-30 | Ю.П. Гребенкин | Устройство звуковидения ядерного реактора с жидкометаллическим теплоносителем |
| JP2000009702A (ja) * | 1998-06-24 | 2000-01-14 | Mitsubishi Heavy Ind Ltd | 超音波探傷装置 |
| RU29397U1 (ru) * | 2002-12-23 | 2003-05-10 | Федеральное государственное унитарное предприятие "Научно-исследовательский и конструкторский институт энерготехники им. Н.А.Доллежаля" | Ультразвуковое устройство для контроля положения перегрузочной машины ядерного реактора с жидкометаллическим теплоносителем |
| JP2010271319A (ja) * | 2009-05-25 | 2010-12-02 | Korea Atomic Energy Research Inst | ウェーブガイド超音波センサ装置 |
Non-Patent Citations (1)
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3916739A4 (en) | 2022-11-09 |
| KR102632149B1 (ko) | 2024-01-31 |
| JP7261299B2 (ja) | 2023-04-19 |
| CA3121704A1 (en) | 2020-06-04 |
| ZA202105388B (en) | 2022-10-26 |
| EP3916739A1 (en) | 2021-12-01 |
| KR20210094611A (ko) | 2021-07-29 |
| CN113196417A (zh) | 2021-07-30 |
| BR112021010239A2 (pt) | 2021-08-17 |
| RU2697664C1 (ru) | 2019-08-16 |
| EP3916739B1 (en) | 2025-10-29 |
| JP2022522572A (ja) | 2022-04-20 |
| US20220005620A1 (en) | 2022-01-06 |
| CN113196417B (zh) | 2024-12-27 |
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