WO2013141524A1 - System for burying nuclear fuel rods - Google Patents

System for burying nuclear fuel rods Download PDF

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Publication number
WO2013141524A1
WO2013141524A1 PCT/KR2013/002097 KR2013002097W WO2013141524A1 WO 2013141524 A1 WO2013141524 A1 WO 2013141524A1 KR 2013002097 W KR2013002097 W KR 2013002097W WO 2013141524 A1 WO2013141524 A1 WO 2013141524A1
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Prior art keywords
nuclear fuel
fuel rod
fuel rods
underground tunnel
pressure vessel
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PCT/KR2013/002097
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French (fr)
Korean (ko)
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윤한울
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Yoon Han Oul
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Publication of WO2013141524A1 publication Critical patent/WO2013141524A1/en

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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • G21F9/20—Disposal of liquid waste
    • G21F9/24—Disposal of liquid waste by storage in the ground; by storage under water, e.g. in ocean
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/34—Disposal of solid waste
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/34—Disposal of solid waste
    • G21F9/36—Disposal of solid waste by packaging; by baling

Definitions

  • the present invention relates to a nuclear fuel rod embedding system for securing nuclear fuel rods from a nuclear power plant accident by dropping the nuclear fuel rods underground and filling them with sand, thereby preventing the nuclear fuel rods from melting and radioactive leakage caused by ground exposure.
  • the nuclear fuel rod embedding system is a nuclear fuel rod embedding system in which the nuclear fuel rod is dropped underground when the nuclear fuel rod is in danger of melting, and the nuclear fuel rod is removably accommodated therein.
  • a pressure vessel with an opening;
  • a lid mounted to close the open lower end of the pressure vessel; It is preferable to include; lid fixing means for detachably mounting the lid to the pressure vessel.
  • the lid is preferably disposed below the nuclear fuel rod to support and support the nuclear fuel rod.
  • a sand store is stored sand to be put on the nuclear fuel rods.
  • an elevator that can descend along the underground tunnel.
  • the nuclear fuel rod is preferably separated from the pressure vessel and free fall to reach the bottom of the underground tunnel.
  • the present invention by dropping the nuclear fuel rod underground, it is possible to prevent the ground exposure of the radioactive material due to the melting of the nuclear fuel rod, the soil in the ground and the sand can absorb the heat generated from the nuclear fuel rod, radioactivity There is an effect that can safely follow-up work while preventing the outflow of the material.
  • FIG. 1 is a view for explaining a nuclear fuel rod embedded system according to an embodiment of the present invention.
  • Nuclear fuel rod buried system as a device for free-falling the nuclear fuel rod buried underground in the case of danger of melting the nuclear fuel rod due to an accident of a nuclear power plant, as shown in Figure 1, nuclear fuel rod 120 ), An elevator 200, an underground tunnel 300, and a sand warehouse 400.
  • the nuclear fuel rod 120 is a nuclear fuel rod that is a raw material for nuclear power generation, and is located inside the pressure vessel 150 disposed inside the reactor 160.
  • the reactor 160 is made of concrete, and the pressure vessel 150 is made of metal to withstand high pressure and high heat.
  • the underground tunnel 300 is an underground tunnel excavated perpendicularly below the nuclear fuel rod 120.
  • the underground tunnel 300 comprehensively examines the geological survey of the ground 500 directly below the reactor 160 at the time of construction of the nuclear power plant, the existence of the groundwater channel, and the distance from the sea.
  • the nuclear fuel rods 120 are constructed to a depth that is sufficiently safe from the radiation spill that they will emit.
  • the width of the underground tunnel 300 is determined in consideration of the size of the nuclear fuel rod 120 and the safety of the ground under the reactor 160.
  • a predetermined amount of boric acid 310 is stored at the bottom of the underground tunnel 300. Since the boric acid 310 serves to catch neutrons to meet nuclear fuel and prevent a fission reaction, the underground tunnel 300 of the underground tunnel 300 To suppress the nuclear reaction of the nuclear fuel rods 120 dropped to the bottom.
  • An open lower end of the pressure vessel 150 is equipped with a lid 100 capable of closing the opened lower end of the pressure vessel 150.
  • Both sides of the lid 100 is equipped with a cap bolt 110, when the worker loosens the cap bolt 110 by manpower, the lid 100 is made to fall down.
  • the lid 100 is made as small as possible to facilitate the operation.
  • the cap bolt 110 is a lid fixing means for detachably mounting the cap 100 to the pressure vessel 150.
  • the lid 100 is disposed below the nuclear fuel rod 120 and is coupled to the lower surface of the nuclear fuel rod 120 by a connecting shaft 130. That is, the lid 100 and the connecting shaft 130 is supported by supporting the nuclear fuel rod 120.
  • the lid 100 is provided to be loaded on the elevator 200 located below the lid 100 after free fall along the connection passage 140 together with the nuclear fuel rod 120 in an emergency.
  • connection passage 140 is a passage for connecting the lower end of the pressure vessel 150 and the underground tunnel 300, and is sealed for safety so that all confirmation is a separate detection sensor.
  • the elevator 200 After confirming that the fuel rod 120 is loaded on the elevator 200, when the worker opens the elevator lever 210 holding the elevator 200 by manpower, the elevator 200 is connected to the underground tunnel ( Free fall down along 300).
  • the elevator lever 210 is an elevator fixing means for fixing the elevator 200 detachably to the upper end of the underground tunnel 300.
  • the elevator 200 freely falls freely in a state in which the elevator wheel 220 rotatably attached to the elevator 200 gently rolls along the elevator rail 240.
  • Boric acid 230 is stored at the lower end of the elevator 200, and the boric acid 230 undergoes nuclear reaction of the nuclear fuel rod 120 when the elevator 200 drops to the bottom of the underground tunnel 300. Will be suppressed.
  • the sand warehouse 400 is constructed at an upper end of the underground tunnel 300 so that the free fall of the sand 410 is fast, and includes a sand passage 420 and a sand inlet 430.
  • the sand passage 420 is an underground passage connecting the lower end of the sand warehouse 400 and the inner circumferential surface of the underground tunnel 300 to each other.
  • the sand inlet 430 is a hole provided in the underground tunnel 300 side of the sand passage 420, the sand 410 stored in the sand storage 400 is discharged.
  • the worker After confirming that the nuclear fuel rods 120 loaded on the elevator 200 fell safely to the bottom of the underground tunnel 300, the worker moves the sand 410 stored in the sand warehouse 400 into the underground tunnel 300. Put it on the floor.
  • the nuclear fuel rod embedding system having the above-described configuration drops the nuclear fuel rod 120 to the bottom of the underground tunnel 300 by using the elevator 200 in the event of a nuclear power plant accident, and includes boric acid (230, 310) and sand (410).
  • boric acid 230, 310
  • sand 410
  • the nuclear fuel rod buried system, the internal soil of the underground tunnel 300 and the injected sand 410 may absorb the high heat generated from the nuclear fuel rod 120, in a state that prevents the outflow of radioactive material There is an advantage that the worker can safely work on accidents.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Oceanography (AREA)
  • Sustainable Development (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Abstract

The present invention relates to a system for burying nuclear fuel rods, and has the advantages of preventing the exposure of the nuclear fuel rods above the ground and radioactive contamination according to the exposure thereof by manufacturing the bottom portion of a pressure container to be opened so that the nuclear fuel rods can be buried in an underground tunnel when there is risk of the fuel rods melting due to an accident in a nuclear power plant, connecting the bottom portion of the pressure container and the nuclear fuel rods to each other through a connection axis, dropping the nuclear fuel rods underground using an elevator provided at the entrance of the underground tunnel when the risk of the fuel rods melting occurs, and closing the underground tunnel by dropping sand prepared in advance underground.

Description

핵연료봉 매립 시스템Nuclear Fuel Rod Landfill System
본 발명은 원자력 발전소의 사고로 인한 핵연료봉의 용해 위험시 핵연료봉을 지하로 낙하시키고 모래로 매립시킴으로써 핵연료봉의 용해와 지상노출로 인한 방사능 유출로부터 안전하게 하기 위한 핵연료봉 매립 시스템에 관한 것이다.The present invention relates to a nuclear fuel rod embedding system for securing nuclear fuel rods from a nuclear power plant accident by dropping the nuclear fuel rods underground and filling them with sand, thereby preventing the nuclear fuel rods from melting and radioactive leakage caused by ground exposure.
지금까지는 원자력 발전소의 사고로 인한 핵연료봉의 용해 위험시에 아무런 대책을 찾지 못한 채 빠른 핵연료봉의 용해와 핵연료봉의 노출로 이어져 왔다. 핵연료봉의 지상노출 후에 주변을 막고 위에서 덮어 보려는 계획을 세워보지만 강력한 방사능 유출로 인하여 사람이 접근하기 어려운 상황 속에서 작업은 제대로 진행되지 못하고 계속 방사능 오염 지역만 확산 되고 있는 실정이다.Until now, it has been leading to rapid melting of fuel rods and exposure of fuel rods without any countermeasures in case of danger of melting fuel rods due to the accident of nuclear power plant. After ground exposure of the nuclear fuel rods, the plan is to block the surroundings and cover them from above. However, due to the strong radiation leakage, the work is not progressing properly, and only the radioactive contaminated areas continue to spread.
따라서, 본 발명의 목적은 핵연료봉의 용해와 지상노출로 인한 인명피해와 계속적인 방사능 유출을 막기 위한 핵연료봉 매립 시스템을 제공함에 있다.Accordingly, it is an object of the present invention to provide a nuclear fuel rod embedding system for preventing nuclear rods from melting and ground exposure to prevent human injury and continuous radiation leakage.
이러한 목적을 달성하기 위하여 본 발명에 따른 핵연료봉 매립 시스템은, 핵연료봉의 용해 위험시 상기 핵연료봉을 지하로 낙하시켜 매립하는 핵연료봉 매립 시스템으로서, 상기 핵연료봉이 탈착 가능하게 내부에 수용되어 있으며, 하단부가 개구되어 있는 압력용기; 상기 핵연료봉이 낙하하여 수납될 수 있는 지하 터널로서, 상기 압력용기의 개구된 하단부와 연결되어 있으며, 미리 정한 깊이로 굴착되어 있는 지하 터널;을 포함하며, 상기 압력용기로부터 분리된 상기 핵연료봉이 낙하하여 상기 지하 터널의 바닥에 매립되는 것을 특징으로 한다.In order to achieve this purpose, the nuclear fuel rod embedding system according to the present invention is a nuclear fuel rod embedding system in which the nuclear fuel rod is dropped underground when the nuclear fuel rod is in danger of melting, and the nuclear fuel rod is removably accommodated therein. A pressure vessel with an opening; An underground tunnel in which the nuclear fuel rods may be dropped and accommodated, the underground tunnel connected to the lower end of the pressure vessel and excavated to a predetermined depth; and including the nuclear fuel rod separated from the pressure vessel to fall. It is characterized in that the buried in the bottom of the underground tunnel.
여기서, 상기 압력용기의 개구된 하단부를 폐쇄할 수 있도록 장착된 뚜껑; 상기 뚜껑을 상기 압력용기에 탈착 가능하게 장착하는 뚜껑 고정 수단;을 포함하는 것이 바람직하다.Here, a lid mounted to close the open lower end of the pressure vessel; It is preferable to include; lid fixing means for detachably mounting the lid to the pressure vessel.
여기서, 상기 뚜껑은, 상기 핵연료봉의 하방에 배치되어 상기 핵연료봉을 받쳐서 지지하는 것이 바람직하다.Here, the lid is preferably disposed below the nuclear fuel rod to support and support the nuclear fuel rod.
여기서, 상기 지하 터널의 바닥으로 상기 핵연료봉이 낙하된 후, 상기 핵연료봉 위에 투입될 모래가 저장되어 있는 모래창고를 포함하는 것이 바람직하다.Here, after the nuclear fuel rods fall to the bottom of the underground tunnel, it is preferable to include a sand store is stored sand to be put on the nuclear fuel rods.
여기서, 상기 압력용기로부터 분리된 상기 핵연료봉을 상기 지하 터널의 바닥으로 운반하기 위한 장치로서, 상기 지하 터널을 따라 하강할 수 있는 엘리베이터를 포함하는 것이 바람직하다.Here, as a device for transporting the nuclear fuel rod separated from the pressure vessel to the bottom of the underground tunnel, it is preferable to include an elevator that can descend along the underground tunnel.
여기서, 상기 핵연료봉은, 상기 압력용기로부터 분리된 후 자유 낙하하여 상기 지하 터널의 바닥에 도달하는 것이 바람직하다.Here, the nuclear fuel rod is preferably separated from the pressure vessel and free fall to reach the bottom of the underground tunnel.
여기서, 별도의 전력 공급이나 에너지 공급이 없는 상황에서도, 작업자의 인력만으로 작동될 수 있는 것이 바람직하다.Here, even in a situation where there is no separate power supply or energy supply, it is preferable that the operator can be operated only by the manpower.
본 발명에 따르면, 상기 핵연료봉을 지하로 낙하시킴으로써 핵연료봉의 용해로 인한 방사능 물질의 지상 노출을 방지할 수 있으며, 지하 지반에 있는 흙과 투입된 모래가 핵연료봉으로부터 발생되는 열을 흡수할 수 있으며, 방사능 물질의 외부 유출을 막은 상태에서 안전하게 후속 작업을 할 수 있는 효과가 있다.According to the present invention, by dropping the nuclear fuel rod underground, it is possible to prevent the ground exposure of the radioactive material due to the melting of the nuclear fuel rod, the soil in the ground and the sand can absorb the heat generated from the nuclear fuel rod, radioactivity There is an effect that can safely follow-up work while preventing the outflow of the material.
도 1은 본 발명의 일 실시예인 핵연료봉 매립 시스템을 설명하기 위한 도면이다.1 is a view for explaining a nuclear fuel rod embedded system according to an embodiment of the present invention.
이하에서는, 본 발명의 바람직한 일 실시예인 핵연료봉 매립 시스템을 구체적으로 설명하기로 한다. 다만 이는 본 발명의 바람직 예시로 제시된 것이며 어떠한 의미로도 이에 의해 본 발명이 제한되는 것으로 해석될 수는 없다. 여기에 기재되지 않은 내용은 이 기술 분야에서 숙련된 자이면 충분히 기술적으로 유추할 수 있는 것이므로 그 설명을 생략하기로 한다.Hereinafter, a nuclear fuel rod embedding system which is a preferred embodiment of the present invention will be described in detail. However, it is presented as a preferred example of the present invention and in no sense can be construed as limiting the present invention. Details that are not described herein will be omitted since those skilled in the art can sufficiently infer technically.
본 발명의 일 실시예인 핵연료봉 매립 시스템은, 원자력 발전소의 사고로 인한 핵연료봉의 용해 위험시 상기 핵연료봉을 지하로 자유 낙하시켜 매립하기 위한 장치로서, 도 1에 도시된 바와 같이, 핵연료봉(120)과, 엘리베이터(200)와, 지하 터널(300)과, 모래창고(400)를 포함하여 구성된다.Nuclear fuel rod buried system according to an embodiment of the present invention, as a device for free-falling the nuclear fuel rod buried underground in the case of danger of melting the nuclear fuel rod due to an accident of a nuclear power plant, as shown in Figure 1, nuclear fuel rod 120 ), An elevator 200, an underground tunnel 300, and a sand warehouse 400.
상기 핵연료봉(120)은, 원자력 발전의 원료가 되는 핵연료봉으로서, 원자로(160)의 내부에 배치된 압력용기(150)의 내부에 위치하고 있다.The nuclear fuel rod 120 is a nuclear fuel rod that is a raw material for nuclear power generation, and is located inside the pressure vessel 150 disposed inside the reactor 160.
상기 원자로(160)는 콘크리트로 튼튼하게 건설되며, 상기 압력용기(150)는 금속으로 고압 및 고열에 견디도록 제조되어 있다.The reactor 160 is made of concrete, and the pressure vessel 150 is made of metal to withstand high pressure and high heat.
상기 지하 터널(300)은, 상기 핵연료봉(120)의 하방에 수직하게 굴착된 지하 터널이다.The underground tunnel 300 is an underground tunnel excavated perpendicularly below the nuclear fuel rod 120.
상기 지하 터널(300)은, 원자력 발전소 건설 당시 원자로(160) 바로 밑부분 지면(500)에 대한 지질조사와, 지하수로의 존재 여부 조사와, 바다와의 거리 등을 종합적으로 검토한 후에, 상기 핵연료봉(120)이 방출하게 될 방사능 유출로부터 충분히 안전한 깊이로 건설된다.The underground tunnel 300 comprehensively examines the geological survey of the ground 500 directly below the reactor 160 at the time of construction of the nuclear power plant, the existence of the groundwater channel, and the distance from the sea. The nuclear fuel rods 120 are constructed to a depth that is sufficiently safe from the radiation spill that they will emit.
상기 지하 터널(300)의 폭은, 상기 핵연료봉(120)의 크기와 상기 원자로(160) 아래 지반의 안전성을 고려하여 정하게 된다.The width of the underground tunnel 300 is determined in consideration of the size of the nuclear fuel rod 120 and the safety of the ground under the reactor 160.
상기 지하 터널(300)의 바닥에는 미리 정한 양의 붕산(310)이 저장되어 있는데, 상기 붕산(310)은 핵연료와 만나 핵분열반응을 일으키지 못하도록 중성자를 붙잡는 역할을 하므로, 상기 지하 터널(300)의 바닥에 낙하된 상기 핵연료봉(120)의 핵반응을 억제하게 된다.A predetermined amount of boric acid 310 is stored at the bottom of the underground tunnel 300. Since the boric acid 310 serves to catch neutrons to meet nuclear fuel and prevent a fission reaction, the underground tunnel 300 of the underground tunnel 300 To suppress the nuclear reaction of the nuclear fuel rods 120 dropped to the bottom.
상기 압력용기(150)의 개구된 하단부에는, 상기 압력용기(150)의 개구된 하단부를 폐쇄할 수 있는 뚜껑(100)이 장착된다.An open lower end of the pressure vessel 150 is equipped with a lid 100 capable of closing the opened lower end of the pressure vessel 150.
상기 뚜껑(100)의 양쪽에는 뚜껑볼트(110)가 장착되어 있는데, 상기 뚜껑볼트(110)를 작업자가 인력으로 풀면, 상기 뚜껑(100)이 밑으로 떨어지도록 만든다. 여기서, 상기 뚜껑(100)은 최대한 작게 만들어 작업을 쉽게 할 수 있도록 한다.Both sides of the lid 100 is equipped with a cap bolt 110, when the worker loosens the cap bolt 110 by manpower, the lid 100 is made to fall down. Here, the lid 100 is made as small as possible to facilitate the operation.
본 실시예에서는 상기 뚜껑볼트(110)가, 상기 뚜껑(100)을 상기 압력용기(150)에 탈착 가능하게 장착하는 뚜껑 고정 수단이 된다.In the present embodiment, the cap bolt 110 is a lid fixing means for detachably mounting the cap 100 to the pressure vessel 150.
상기 뚜껑(100)은, 상기 핵연료봉(120)의 하방에 배치되며, 연결축(130)에 의하여 상기 핵연료봉(120)의 하면과 결합되어 있다. 즉, 상기 뚜껑(100) 및 연결축(130)은 상기 핵연료봉(120)을 받쳐서 지지하게 된다.The lid 100 is disposed below the nuclear fuel rod 120 and is coupled to the lower surface of the nuclear fuel rod 120 by a connecting shaft 130. That is, the lid 100 and the connecting shaft 130 is supported by supporting the nuclear fuel rod 120.
상기 뚜껑(100)은, 비상시에 상기 핵연료봉(120)과 함께 연결통로(140)를 따라 자유 낙하한 후, 상기 뚜껑(100)의 하방에 위치한 상기 엘리베이터(200)에 실릴 수 있도록 마련된다 The lid 100 is provided to be loaded on the elevator 200 located below the lid 100 after free fall along the connection passage 140 together with the nuclear fuel rod 120 in an emergency.
상기 연결통로(140)는, 상기 압력용기(150)의 하단부와 상기 지하 터널(300)을 연결하는 통로로서, 안전을 위하여 밀폐되어 있으므로 모든 확인은 별도의 감지 센서로 한다.The connection passage 140 is a passage for connecting the lower end of the pressure vessel 150 and the underground tunnel 300, and is sealed for safety so that all confirmation is a separate detection sensor.
상기 엘리베이터(200)에 상기 핵연료봉(120)이 실어졌음을 확인한 후에, 작업자가 인력으로 상기 엘리베이터(200)를 고정하고 있는 엘리베이터 레버(210)를 열면, 상기 엘리베이터(200)가 상기 지하 터널(300)을 따라 아래로 자유 낙하된다.After confirming that the fuel rod 120 is loaded on the elevator 200, when the worker opens the elevator lever 210 holding the elevator 200 by manpower, the elevator 200 is connected to the underground tunnel ( Free fall down along 300).
본 실시예에서는 상기 엘리베이터 레버(210)가, 상기 엘리베이터(200)를 상기 지하 터널(300)의 상단부에 탈착 가능하게 고정하는 엘리베이터 고정 수단이 된다.In the present embodiment, the elevator lever 210 is an elevator fixing means for fixing the elevator 200 detachably to the upper end of the underground tunnel 300.
상기 엘리베이터(200)는, 상기 엘리베이터(200)에 회전 가능하게 부착된 엘리베이터 바퀴(220)가 엘리베이터 레일(240)을 따라 부드럽게 굴러가는 상태에서, 안전하게 자유 낙하 된다.The elevator 200 freely falls freely in a state in which the elevator wheel 220 rotatably attached to the elevator 200 gently rolls along the elevator rail 240.
상기 엘리베이터(200)의 하단부에는 붕산(230)이 저장되어 있으며, 상기 붕산(230)은 상기 엘리베이터(200)가 상기 지하 터널(300)의 바닥에 낙하 되었을 때 상기 핵연료봉(120)의 핵반응을 억제하게 된다. Boric acid 230 is stored at the lower end of the elevator 200, and the boric acid 230 undergoes nuclear reaction of the nuclear fuel rod 120 when the elevator 200 drops to the bottom of the underground tunnel 300. Will be suppressed.
상기 모래창고(400)는, 상기 모래(410)의 자유 낙하가 빠르게 될 수 있도록 상기 지하 터널(300)의 상단부에 건설되며, 모래통로(420)와, 모래투입구(430)를 포함한다.The sand warehouse 400 is constructed at an upper end of the underground tunnel 300 so that the free fall of the sand 410 is fast, and includes a sand passage 420 and a sand inlet 430.
상기 모래통로(420)는, 상기 모래창고(400)의 하단부와 상기 지하 터널(300)의 내주면을 서로 연결하는 지하 통로이다.The sand passage 420 is an underground passage connecting the lower end of the sand warehouse 400 and the inner circumferential surface of the underground tunnel 300 to each other.
상기 모래투입구(430)는, 상기 모래통로(420)의 상기 지하 터널(300) 측에 마련된 구멍으로서, 상기 모래창고(400)에 저장된 모래(410)가 토출되는 구멍이다.The sand inlet 430 is a hole provided in the underground tunnel 300 side of the sand passage 420, the sand 410 stored in the sand storage 400 is discharged.
상기 엘리베이터(200)에 실린 핵연료봉(120)이 안전하게 지하 터널(300)의 바닥으로 낙하 되었음을 확인한 후에, 작업자는 모래창고(400)에 저장되어 있는 모래(410)를 상기 지하 터널(300)의 바닥으로 투입한다. After confirming that the nuclear fuel rods 120 loaded on the elevator 200 fell safely to the bottom of the underground tunnel 300, the worker moves the sand 410 stored in the sand warehouse 400 into the underground tunnel 300. Put it on the floor.
상술한 구성의 핵연료봉 매립 시스템은, 원전 사고시에 상기 핵연료봉(120)을 상기 엘리베이터(200)를 이용하여 상기 지하 터널(300)의 바닥으로 낙하시키고, 붕산(230, 310)과 모래(410)를 이용하여 지하로 낙하된 상기 핵연료봉(120)을 매립함으로써, 상기 핵연료봉(120)의 용해로 인한 방사능 물질의 지상 노출을 방지할 수 있는 장점이 있다.The nuclear fuel rod embedding system having the above-described configuration drops the nuclear fuel rod 120 to the bottom of the underground tunnel 300 by using the elevator 200 in the event of a nuclear power plant accident, and includes boric acid (230, 310) and sand (410). By embedding the nuclear fuel rod 120 dropped to the ground using the), there is an advantage that can prevent the ground exposure of the radioactive material due to the dissolution of the nuclear fuel rod (120).
그리고, 상기 핵연료봉 매립 시스템은, 상기 지하 터널(300)의 내부 흙과 투입된 모래(410)가 상기 핵연료봉(120)으로부터 발생되는 고열을 흡수할 수 있으며, 방사능 물질의 외부 유출을 막은 상태에서 작업자가 안전하게 사고 수습 작업을 할 수 있는 장점이 있다.In addition, the nuclear fuel rod buried system, the internal soil of the underground tunnel 300 and the injected sand 410 may absorb the high heat generated from the nuclear fuel rod 120, in a state that prevents the outflow of radioactive material There is an advantage that the worker can safely work on accidents.
또한, 상기 핵연료봉 매립 시스템은, 전력 공급이 되지 않거나 배터리 장치가 가동하지 못하여 핵연료봉(120)이 용해될 위험이 있을 상황에서 수동으로 핵연료봉(120)을 지하로 빠르고도 안전하게 자유 낙하시키고, 상비시켜놓은 모래(410)를 빠르게 자유 낙하시킴으로써, 핵연료봉(120)의 방사능 유출을 방지할 수 있는 장점이 있다.In addition, the nuclear fuel rod buried system, freely dropping the nuclear fuel rod 120 to the ground quickly and safely in a situation that there is a risk that the fuel rod 120 is not dissolved because the power supply is not supplied or the battery device is not operated, By freely falling free fall of sand (410), there is an advantage that can prevent the radiation leakage of the nuclear fuel rod (120).

Claims (7)

  1. 핵연료봉의 용해 위험시 상기 핵연료봉을 지하로 낙하시켜 매립하는 핵연료봉 매립 시스템으로서,A nuclear fuel rod embedding system for dropping the nuclear fuel rod underground and buried in case of danger of dissolution of the nuclear fuel rod,
    상기 핵연료봉이 탈착 가능하게 내부에 수용되어 있으며, 하단부가 개구되어 있는 압력용기;A pressure vessel in which the nuclear fuel rod is detachably housed and having a lower end opened;
    상기 핵연료봉이 낙하하여 수납될 수 있는 지하 터널로서, 상기 압력용기의 개구된 하단부와 연결되어 있으며, 미리 정한 깊이로 굴착되어 있는 지하 터널;An underground tunnel in which the nuclear fuel rods may be dropped and accommodated, the underground tunnel being connected to an open lower end of the pressure vessel and being excavated to a predetermined depth;
    을 포함하며,Including;
    상기 압력용기로부터 분리된 상기 핵연료봉이 낙하하여 상기 지하 터널의 바닥에 매립되는 것을 특징으로 하는 핵연료봉 매립 시스템The nuclear fuel rod buried system, characterized in that the nuclear fuel rod separated from the pressure vessel is dropped and buried in the bottom of the underground tunnel.
  2. 제 1항에 있어서,The method of claim 1,
    상기 압력용기의 개구된 하단부를 폐쇄할 수 있도록 장착된 뚜껑;A lid mounted to close the opened lower end of the pressure vessel;
    상기 뚜껑을 상기 압력용기에 탈착 가능하게 장착하는 뚜껑 고정 수단;Lid fixing means for detachably mounting the lid to the pressure vessel;
    을 포함하는 것을 특징으로 하는 핵연료봉 매립 시스템Nuclear fuel rod embedded system comprising a
  3. 제 2항에 있어서,The method of claim 2,
    상기 뚜껑은,The lid is
    상기 핵연료봉의 하방에 배치되어 상기 핵연료봉을 받쳐서 지지하는 것을 특징으로 하는 핵연료봉 매립 시스템A nuclear fuel rod embedded system disposed below the nuclear fuel rod to support and support the nuclear fuel rod
  4. 제 1항에 있어서,The method of claim 1,
    상기 지하 터널의 바닥으로 상기 핵연료봉이 낙하된 후, 상기 핵연료봉 위에 투입될 모래가 저장되어 있는 모래창고를 포함하는 것을 특징으로 하는 핵연료봉 매립 시스템After the nuclear fuel rods fall to the bottom of the underground tunnel, the nuclear fuel rods buried system comprising a sand storage for storing the sand to be put on the nuclear fuel rods
  5. 제 1항에 있어서,The method of claim 1,
    상기 압력용기로부터 분리된 상기 핵연료봉을 상기 지하 터널의 바닥으로 운반하기 위한 장치로서, 상기 지하 터널을 따라 하강할 수 있는 엘리베이터를 포함하는 것을 특징으로 하는 핵연료봉 매립 시스템A device for transporting the fuel rods separated from the pressure vessel to the bottom of the underground tunnel, the fuel rod embedded system comprising an elevator that can descend along the underground tunnel.
  6. 제 1항에 있어서,The method of claim 1,
    상기 핵연료봉은,The nuclear fuel rods,
    상기 압력용기로부터 분리된 후 자유 낙하하여 상기 지하 터널의 바닥에 도달하는 것을 특징으로 하는 핵연료봉 매립 시스템The nuclear fuel rod buried system, which is separated from the pressure vessel and free-falls to reach the bottom of the underground tunnel.
  7. 제 1항에 있어서,The method of claim 1,
    별도의 전력 공급이나 에너지 공급이 없는 상황에서도, 작업자의 인력만으로 작동될 수 있는 것을 특징으로 하는 핵연료봉 매립 시스템Nuclear fuel rod buried system, characterized in that it can be operated only by the worker's personnel, even in the absence of a separate power supply or energy supply
PCT/KR2013/002097 2012-03-20 2013-03-15 System for burying nuclear fuel rods WO2013141524A1 (en)

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Application Number Priority Date Filing Date Title
KR10-2012-0028006 2012-03-20
KR1020120028006A KR20130106468A (en) 2012-03-20 2012-03-20 Fuel rods landfill underground tunnel and a device

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0836098A (en) * 1994-01-25 1996-02-06 Commiss Energ Atom Device for arranging material into drilled well
JPH09288200A (en) * 1996-04-23 1997-11-04 Kajima Corp Waste treatment facility
JP2000131496A (en) * 1998-10-22 2000-05-12 Shimizu Corp Storage method and facility of activated concrete
JP2010083675A (en) * 2008-10-03 2010-04-15 Kajima Corp Method for transporting waste by air capsule
US20110054234A1 (en) * 2008-02-21 2011-03-03 Hans Georgii A Method for Storing Hazardous Materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0836098A (en) * 1994-01-25 1996-02-06 Commiss Energ Atom Device for arranging material into drilled well
JPH09288200A (en) * 1996-04-23 1997-11-04 Kajima Corp Waste treatment facility
JP2000131496A (en) * 1998-10-22 2000-05-12 Shimizu Corp Storage method and facility of activated concrete
US20110054234A1 (en) * 2008-02-21 2011-03-03 Hans Georgii A Method for Storing Hazardous Materials
JP2010083675A (en) * 2008-10-03 2010-04-15 Kajima Corp Method for transporting waste by air capsule

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