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    METHOD OF REMOVING NUCLEAR POWER PLANT RADIOACTIVATION STRUCTURE
    22.
    发明申请
    METHOD OF REMOVING NUCLEAR POWER PLANT RADIOACTIVATION STRUCTURE 有权

    公开(公告)号：US20210296017A1

    公开(公告)日：2021-09-23

    申请号：US17262394

    申请日：2019-05-22

    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

    Inventor： Kwanseong JEONG ,  Seung-Kook PARK ,  Inhye HAHM ,  Jae Hyun HA ,  Sang Bum HONG ,  Bum Kyoung SEO

    IPC: G21D1/00 ,  G21C19/32

    Abstract: The present disclosure relates to a method of removing a nuclear power plant activation structure. Specifically, an embodiment of the present disclosure may provide a method of removing a nuclear power plant activation structure including flattening at least a portion of a wall surface of a peripheral portion of a wall of a nuclear reactor, the wall including a buried portion in which a nuclear power plant activation structure is buried and the peripheral portion circumferentially surrounding the buried portion; installing a drilling device in the flattened peripheral portion and performing a drilling operation; removing the nuclear power plant activation structure from the buried portion; and cutting the removed nuclear power plant activation structure and storing pieces of the cut nuclear power plant activation structure in a shielding container.

    Method for removing cesium in clay mineral using hydrogen peroxide
    23.
    发明授权
    Method for removing cesium in clay mineral using hydrogen peroxide 有权

    公开(公告)号：US11059082B2

    公开(公告)日：2021-07-13

    申请号：US16154724

    申请日：2018-10-09

    Applicant: Korea Atomic Energy Research Institute

    Inventor： Il Gook Kim ,  Kune Woo Lee ,  Chan Woo Park ,  In Ho Yoon ,  Hee Man Yang ,  Bum Kyoung Seo

    IPC: B09C1/00 ,  B09C1/08 ,  G21F9/30 ,  C22B7/00 ,  C22B26/10 ,  C01D17/00 ,  G21F9/12

    Abstract: The present invention relates to a method for removing cesium in a clay mineral using hydrogen peroxide. According to the present invention, cesium in a clay mineral is removed using hydrogen peroxide, which serves to induce interlayer expansion of the clay mineral to allow a cation to easily enter an interlayer of the clay mineral, and thus cesium desorption efficiency can be further improved. Also, the method according to the present invention can be efficiently used to restore soil in residential areas widely contaminated with a radionuclide when a major accident such as Fukushima nuclear accident occurs as well as various sites of atomic energy facilities contaminated with a radionuclide. Also, since radiation-contaminated soil is treated with only hydrogen peroxide and cations, secondary environmental pollution caused by wastes can be significantly reduce and the waste disposing cost can also be saved.

    REMOTE DISMANTLING SYSTEM FOR NUCLEAR POWER PLANT AND NUCLEAR POWER PLANT HAVING SAME
    25.
    发明申请
    REMOTE DISMANTLING SYSTEM FOR NUCLEAR POWER PLANT AND NUCLEAR POWER PLANT HAVING SAME 有权

    公开(公告)号：US20210210236A1

    公开(公告)日：2021-07-08

    申请号：US17055743

    申请日：2019-05-09

    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

    Inventor： Dongjun HYUN ,  Changhoi KIM ,  Sunguk LEE ,  Shinyoung KANG

    IPC: G21D1/00 ,  G21F9/30 ,  G21C19/37

    Abstract: The present invention relates to a remote dismantling system for a nuclear power plant. The remote dismantling system comprises: a transfer system for transferring an object to be cut, the object being placed on one side of the transfer system; and a parallel vertical rail robot arm system arranged within the movement radius of the transfer system and comprising a cutting robot arm for cutting the object to be cut. The transfer system comprises a gantry crane and a jib crane which are arranged to be movable across each other and transfer the object to be cut. The parallel vertical rail robot arm system comprises a transfer robot arm arranged to be vertically movable along with the cutting robot arm in order to transfer finely cut pieces which have been cut from the object to be cut.

    UNDERWATER RADIATION MONITORING SYSTEM AND METHOD
    26.
    发明申请
    UNDERWATER RADIATION MONITORING SYSTEM AND METHOD 有权

    公开(公告)号：US20210208288A1

    公开(公告)日：2021-07-08

    申请号：US17079858

    申请日：2020-10-26

    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

    Inventor： Sung Hee JUNG ,  Jin Ho MOON ,  Jang Guen PARK

    IPC: G01T1/169

    Abstract: Provided are an underwater radiation monitoring system and method. The monitoring system includes a plurality of sensors configured to measure a value of underwater radiation in a measurement area in which underwater radiation is to be measured, the plurality of sensors being installed in the measurement area by being arranged in a form which is set on the basis of information about the measurement area; and an electronic device configured to identify a value of underwater radiation in the measurement area on the basis of the values of underwater radiation measured by the plurality of sensors, wherein at least one first sensor among the plurality of sensors is connected to the electronic device to collect measured values obtained from the at least one first sensor and a plurality of second sensors excluding the at least one first sensor and to transmit the collected measured values to the electronic device.

    ELECTRIC GRIPPING DEVICE
    27.
    发明申请
    ELECTRIC GRIPPING DEVICE 有权

    公开(公告)号：US20210162607A1

    公开(公告)日：2021-06-03

    申请号：US17267248

    申请日：2019-07-24

    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

    Inventor： Hocheol SHIN ,  Seung-Ho JUNG ,  You-Rak CHOI ,  Dongseok RYU ,  Jonghui HAN

    IPC: B25J15/02

    Abstract: An embodiment of the present invention to provide an electric gripping device that improves a coupling relationship between a two-fingered clamper module using a four-joint link and the actuator module to facilitate assembling and disassembling of the actuator module and the clamper module and minimizes a length of the electric gripper to easily secure a robot's work space or work direction when being connected to the robot.

    SENSOR TUBE OF HUMIDITY SENSOR, TUBE ASSEMBLY, AND HUMIDITY SENSOR SYSTEM
    28.
    发明申请
    SENSOR TUBE OF HUMIDITY SENSOR, TUBE ASSEMBLY, AND HUMIDITY SENSOR SYSTEM 有权

    公开(公告)号：US20210140905A1

    公开(公告)日：2021-05-13

    申请号：US17085657

    申请日：2020-10-30

    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE

    Inventor： Yeon Sik KIM ,  Tae Soon KWON ,  Dong Jin EUH ,  Hae Seob CHOI ,  Woo Shik KIM

    IPC: G01N27/12 ,  G01N27/22

    Abstract: A sensor tube according to the present disclosure includes a body including a body extension having opposite ends connected to measurement air connection pipes and an opening, the measurement air connecting pipes being connected to a humidity sensor to deliver moisture to the humidity sensor using measurement air or allow the measurement air released from the humidity sensor to flow therethrough, and the opening being formed in the body extension to cause an interior space of the body extension and the outside to be in communication with each other such that the moisture is introduced into the interior space of the body extension from the outside through the opening, and an opening/closing part that selectively opens or closes the opening by being operated by a difference in pressure between the interior space of the body extension and the outside.

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