WO2023136649A1 - 중수로 원자로구조물의 살수탱크 철거방법 - Google Patents
중수로 원자로구조물의 살수탱크 철거방법 Download PDFInfo
- Publication number
- WO2023136649A1 WO2023136649A1 PCT/KR2023/000632 KR2023000632W WO2023136649A1 WO 2023136649 A1 WO2023136649 A1 WO 2023136649A1 KR 2023000632 W KR2023000632 W KR 2023000632W WO 2023136649 A1 WO2023136649 A1 WO 2023136649A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tank
- cutting
- unit
- area
- heavy water
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/18—Emergency cooling arrangements; Removing shut-down heat
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C21/00—Apparatus or processes specially adapted to the manufacture of reactors or parts thereof
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/003—Nuclear facilities decommissioning arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/20—Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel
- G21C19/207—Assembling, maintenance or repair of reactor components
-
- 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 present invention relates to a method for dismantling a water spray tank of a heavy water reactor structure.
- An object to be solved by the present invention is to provide a method for dismantling the spray tank of the heavy water reactor structure, which can safely remove the spray tank structure, which is a concrete structure contaminated at the top of the heavy water reactor structure.
- a method for dismantling the water tank of a heavy water reactor structure for achieving the above object is a method of removing a water tank of a heavy water reactor structure, comprising: selecting a water tank of the heavy water reactor structure for removal; dismantling the first structure inside the water spray tank; fixing the water spray tank to a dome structure provided thereon through a mounting hole; Positioning a cutting unit on a second structure including a concrete structure inside the watering tank; and performing, by the cutting unit, a cutting process based on a forward or reverse rotation method with respect to the inner circumferential surface of the water spray tank.
- the cutting unit separates the upper body of the watering tank from the lower body through the cutting process and moves the separated upper body into the lower body.
- the cutting unit includes a base portion seated on the second structure and a driving portion positioned on the base portion while holding the upper body, wherein the driving portion is driven in a forward or reverse rotation manner along the circumferential portion.
- a cutting body is provided to perform the cutting process on the water spray tank, and the driving unit lowers the cut upper body while holding it upward so that the upper body enters the lower body.
- a recovery module located around the cutting unit and recovering the cut and processed objects scattered from the water spray tank by the cutting process, and the recovery module is located in a first area on one side with respect to the drive unit. It includes a recovery unit and a second recovery unit located in a second area on the other side with respect to the drive unit, wherein the first recovery unit rotates through the first area and the second area in a circumferential direction, When the cutting process is performed, the cutting work product generated on the first area is recovered, and the second collection unit rotates the cutting body through the first area and the second area in the circumferential direction to perform the cutting process. When performed, the cutting workpiece generated on the second area is recovered.
- a first induction module for guiding the cut workpiece to the first recovery unit is provided on the first area
- a second induction module for guiding the cut workpiece to the second recovery unit is provided on the second area.
- the first induction module has an upper end provided on the inner wall of the spray tank and the drive unit and a lower end tapered to the first recovery part, so that the cut workpiece is guided to the first recovery part
- the second The induction module has an upper end provided on the inner wall of the spray tank and the drive unit and a lower end tapered to the second recovery part, so that the cut workpiece is guided to the second recovery part.
- the first induction module to the second induction module include at least one of a metal material, a vinyl material, a plastic material, a fabric material, a rubber material, and a glass material.
- the first structure includes a spraying means inside the watering tank
- the second structure includes a concrete structure inside the watering tank.
- At least one of the water spray tank, the first structure, and the second structure is exposed to radioactivity and is contaminated.
- the present invention can provide a method for dismantling the spray tank of a heavy water reactor structure, which can safely remove the spray tank structure, which is a concrete structure contaminated at the top of the heavy water reactor structure.
- FIG. 1 is a flowchart sequentially illustrating a method of dismantling a spray tank of a heavy water reactor structure according to an embodiment of the present invention.
- Figure 2 is a view showing the configuration according to Figure 1;
- 3 to 7 are views showing a process of dismantling the watering tank.
- the method for removing the water tank of the heavy water reactor structure is a method of removing the water tank 110 of the heavy water reactor structure, and the water tank 110 for removal is selected. (See Fig. 2)
- the first structure 115 inside the watering tank 110 is removed.
- the spray tank 110 is fixed to the dome structure 120 provided thereon through mounting holes 161 and 162. (See Fig. 3)
- the cutting unit 130 is positioned on the second structure 125 including the concrete structure inside the watering tank 110. Next, the cutting unit 130 performs a cutting process based on a forward rotation or reverse rotation method with respect to the inner circumference of the water spray tank 110 . (See FIGS. 4 to 6)
- the cutting unit 130 separates the upper body 111 of the watering tank 110 from the lower body 112 through the cutting process, and the separated upper body 111 is inside the lower body 112. position to be moved. (See Fig. 7)
- the base part 131 of the cutting unit 130 is seated on the second structure 125 .
- the driving part 132 of the cutting unit 130 supports the upper body 111 and is positioned on the base part 131. (See Fig. 4)
- the cutting body 1321 of the driving unit 132 is driven along the circumference in a forward or reverse rotation manner.
- the cutting body 1321 performs the cutting process on the water spray tank 110. (See Fig. 5)
- the driving unit 132 lowers the upper body 111 while holding the cut upper body 111 upward so that the upper body 111 enters the lower body 112 .
- the collection modules 141 and 142 are located around the cutting unit 130 and recover the cut products scattered from the water spray tank 110 by the cutting process. (See FIGS. 5 to 7)
- the first recovery unit 141 of the recovery modules 141 and 142 is located in the first area S1 on one side with respect to the drive unit 132 .
- the second recovery part 142 of the recovery module 141 is located in the second region S2 on the other side with respect to the driving part 132 . (See Fig. 6)
- the first recovery unit 141 performs the cutting process while the cutting body 1321 rotates in the circumferential direction through the first area S1 and the second area S2, and the first area (S1) The cutting workpiece generated in phase is recovered. (See Fig. 6)
- the first induction module 151 guides the cutting workpiece to the first recovery part 141 on the first area S1.
- the second induction module 152 guides the cutting workpiece to the second recovery part 142 on the second area S2. (See Fig. 6)
- the first induction module 151 has an upper end provided on the inner wall of the spray tank 110 and the driving unit 132.
- the first induction module 151 is provided so that its lower end is tapered to the first recovery part 141, so that the cut workpiece is guided to the first recovery part 141. (See Fig. 6)
- the second induction module 152 has an upper end provided on the inner wall of the water spray tank 110 and the driving unit 132.
- the second induction module 152 is provided so that its lower end is tapered to the second recovery part 142, so that the cut workpiece is guided to the second recovery part 142. (See Fig. 6)
- the first induction module 151 to the second induction module 152 include at least one of a metal material, a vinyl material, a plastic material, a fabric material, a rubber material, and a glass material.
- the first structure 115 includes a spraying means inside the watering tank 110
- the second structure 125 includes a concrete structure inside the watering tank 110. At least one of the water spray tank 110, the first structure 115, and the second structure 125 may be exposed to and contaminated with radioactivity. (See FIGS. 2 to 3)
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
Claims (5)
- 중수로 원자로구조물의 살수탱크 철거방법으로서,철거를 위한 중수로 원자로구조물의 살수탱크가 선정되는 단계;상기 살수탱크 내부의 제1구조물이 철거되는 단계;상기 살수탱크가 상부에 구비되는 돔구조부에 장착구를 통해 고정되는 단계;상기 살수탱크 내부에 콘크리트구조물을 포함하는 제2구조물상에 절단유닛이 위치되는 단계; 및상기 절단유닛이 상기 살수탱크 내주면 둘레에 대하여 정회전 혹은 역회전방식에 기반하는 절단가공을 수행하는 단계를 포함하는, 중수로 원자로구조물의 살수탱크 철거방법.
- 제1항에 있어서,상기 절단유닛은,상기 절단가공을 통해 상기 살수탱크의 상부몸체가 하부몸체로부터 분리시키며 분리된 상기 상부몸체가 상기 하부몸체 내부로 위치이동 되도록 하는, 중수로 원자로구조물의 살수탱크 철거방법.
- 제2항에 있어서,상기 절단유닛은,상기 제2구조물에 안착되는 베이스부와,상기 상부몸체를 거치하며 상기 베이스부상에 위치되는 구동부를 포함하며,상기 구동부는,둘레부를 따라 정회전 또는 역회전 방식으로 구동되는 절단체가 구비되어 상기 살수탱크에 대한 상기 절단가공을 수행하며,상기 구동부는 절단된 상기 상부몸체를 상부로 거치한 채 하강하여 상기 상부몸체가 상기 하부몸체로 진입되도록 하는, 중수로 원자로구조물의 살수탱크 철거방법.
- 제3항에 있어서,상기 절단유닛 주변부에 위치되며 상기 절단가공에 의해 상기 살수탱크로부터 비산되는 절단가공물을 회수하는 회수모듈이 구비되며,상기 회수모듈은,상기 구동부를 기준으로 일측의 제1영역에 위치되는 제1회수부와, 상기 구동부를 기준으로 타측의 제2영역에 위치되는 제2회수부를 포함하며,상기 제1회수부는,상기 절단체가 상기 제1영역과 상기 제2영역을 둘레방향으로 회전경유하며 상기 절단가공을 수행하면 상기 제1영역상에서 발생되는 상기 절단가공물을 회수하며,상기 제2회수부는,상기 절단체가 상기 제1영역과 상기 제2영역을 둘레방향으로 회전경유하며 상기 절단가공을 수행하면 상기 제2영역상에서 발생되는 상기 절단가공물을 회수하는, 중수로 원자로구조물의 살수탱크 철거방법.
- 제4항에 있어서,상기 제1영역상에는 상기 절단가공물이 상기 제1회수부로 유도되도록 하는 제1유도모듈이 구비되며,상기 제2영역상에는 상기 절단가공물이 상기 제2회수부로 유도되도록 하는 제2유도모듈이 구비되는, 중수로 원자로구조물의 살수탱크 철거방법.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3240755A CA3240755A1 (en) | 2022-01-14 | 2023-01-13 | Method for removing dousing tank of heavy water reactor structure |
| US18/718,618 US20250182920A1 (en) | 2022-01-14 | 2023-01-13 | Method for removing dousing tank of heavy water reactor structure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2022-0005629 | 2022-01-14 | ||
| KR1020220005629A KR102694495B1 (ko) | 2022-01-14 | 2022-01-14 | 중수로 원자로구조물의 살수탱크 철거방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023136649A1 true WO2023136649A1 (ko) | 2023-07-20 |
Family
ID=87279442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2023/000632 Ceased WO2023136649A1 (ko) | 2022-01-14 | 2023-01-13 | 중수로 원자로구조물의 살수탱크 철거방법 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250182920A1 (ko) |
| KR (1) | KR102694495B1 (ko) |
| CA (1) | CA3240755A1 (ko) |
| WO (1) | WO2023136649A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10111397A (ja) * | 1996-10-03 | 1998-04-28 | Mitsubishi Heavy Ind Ltd | タンク撤去工法 |
| JP2013249595A (ja) * | 2012-05-30 | 2013-12-12 | Shimizu Corp | 原子炉格納容器内コンクリート構造物の解体方法及び原子炉格納容器内コンクリート構造物の解体装置 |
| KR101502395B1 (ko) * | 2014-04-28 | 2015-03-13 | 한국원자력연구원 | 피동 격납부 살수 및 냉각계통, 및 이를 구비하는 원전 |
| KR102300638B1 (ko) * | 2020-12-01 | 2021-09-09 | 한국수력원자력 주식회사 | 중수로 시설 해체 장치 |
| US20210296017A1 (en) * | 2018-07-27 | 2021-09-23 | Korea Atomic Energy Research Institute | Method of removing nuclear power plant radioactivation structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101507526B1 (ko) | 2013-08-09 | 2015-04-06 | 한국원자력연구원 | 원자력 시설 해체 부지의 복원을 위한 최적화 방법 |
| JP6822872B2 (ja) * | 2017-03-02 | 2021-01-27 | 株式会社東芝 | 解体方法及び解体装置 |
| JP6667916B1 (ja) * | 2019-03-13 | 2020-03-18 | 株式会社Winビジネスデベロップメント | タンク解体装置およびタンク解体方法 |
-
2022
- 2022-01-14 KR KR1020220005629A patent/KR102694495B1/ko active Active
-
2023
- 2023-01-13 CA CA3240755A patent/CA3240755A1/en active Pending
- 2023-01-13 WO PCT/KR2023/000632 patent/WO2023136649A1/ko not_active Ceased
- 2023-01-13 US US18/718,618 patent/US20250182920A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10111397A (ja) * | 1996-10-03 | 1998-04-28 | Mitsubishi Heavy Ind Ltd | タンク撤去工法 |
| JP2013249595A (ja) * | 2012-05-30 | 2013-12-12 | Shimizu Corp | 原子炉格納容器内コンクリート構造物の解体方法及び原子炉格納容器内コンクリート構造物の解体装置 |
| KR101502395B1 (ko) * | 2014-04-28 | 2015-03-13 | 한국원자력연구원 | 피동 격납부 살수 및 냉각계통, 및 이를 구비하는 원전 |
| US20210296017A1 (en) * | 2018-07-27 | 2021-09-23 | Korea Atomic Energy Research Institute | Method of removing nuclear power plant radioactivation structure |
| KR102300638B1 (ko) * | 2020-12-01 | 2021-09-09 | 한국수력원자력 주식회사 | 중수로 시설 해체 장치 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20230109858A (ko) | 2023-07-21 |
| US20250182920A1 (en) | 2025-06-05 |
| KR102694495B1 (ko) | 2024-08-09 |
| CA3240755A1 (en) | 2023-07-20 |
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