JPH10227886A - Radiation shield body - Google Patents
Radiation shield bodyInfo
- Publication number
- JPH10227886A JPH10227886A JP9030059A JP3005997A JPH10227886A JP H10227886 A JPH10227886 A JP H10227886A JP 9030059 A JP9030059 A JP 9030059A JP 3005997 A JP3005997 A JP 3005997A JP H10227886 A JPH10227886 A JP H10227886A
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- reactor
- radiation shield
- shield body
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は沸騰水型原子炉施
設のタービン設備の放射線遮へいに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to radiation shielding of turbine equipment of a boiling water reactor facility.
【0002】[0002]
【従来の技術】従来のタービン本体及びタービン本体周
り配管に対する放射線遮へい体は、機器及び配管周りを
図4,図5に示すように鋼板11によって線量当量率低
減を図っている。2. Description of the Related Art In a conventional radiation shield for a turbine body and a piping around the turbine body, the dose equivalent rate is reduced by using a steel plate 11 around the equipment and the piping as shown in FIGS.
【0003】[0003]
【発明が解決しようとする課題】原子炉運転中では効果
的な遮へい性能を得るためにタービン本体及びタービン
本体周り配管からの放射線、特にガンマ線に対する放射
線遮へいは、密度の大きい、かつ汎用性の高い鋼板を遮
へい体として使用している。また、タービン本体等の定
期検査時は、機器及び配管周りの鋼板遮へい体を取り除
く分解作業が必要である。In order to obtain effective shielding performance during operation of a nuclear reactor, radiation shielding from the turbine body and the piping around the turbine body, particularly gamma rays, is highly dense and versatile. A steel plate is used as a shield. In addition, at the time of periodic inspection of the turbine body and the like, it is necessary to perform a disassembling operation to remove a steel sheet shield around the equipment and piping.
【0004】近年、タービン設備を収納するタービン建
屋と発電所周辺の距離が接近していることから、鋼板を
更に厚くすることにより遮へい性能を強化し線量当量率
の低減を図っているが、分解作業を容易な作業とするた
めに本遮へい体の軽量化の必要性が高くなっている。In recent years, since the distance between the turbine building that houses the turbine equipment and the vicinity of the power plant has been reduced, the shielding performance has been enhanced by further increasing the thickness of the steel sheet to reduce the dose equivalent rate. There is an increasing need to reduce the weight of the shield to make the work easier.
【0005】本発明の目的は、原子炉運転中では効果的
な遮へい性能を有し、放射線遮へい体を分解する場合は
軽量化できる放射線遮へい体を提供することにある。It is an object of the present invention to provide a radiation shield which has an effective shielding performance during operation of a nuclear reactor and which can be reduced in weight when disassembling the radiation shield.
【0006】[0006]
【課題を解決するための手段】上記目的を達成するため
に、原子炉運転中は、タービン本体及びタービン周り配
管の上部にタンクを設置し、そのタンク内に水を満たし
て放射線遮へい体とした。In order to achieve the above object, a tank is installed above the turbine body and piping around the turbine during operation of the reactor, and the tank is filled with water to form a radiation shield. .
【0007】タービン本体及びタービン周り配管の上部
に水タンクを設置することにより、原子炉運転中は鋼板
に代わる遮へい性能を有することができる。一方、原子
炉運転停止中は、タンクから水を取り除くことによって
遮へい体の軽量化が図られ、放射線遮へい体の分解が容
易にできる。また、従来の構造である鋼板放射線遮へい
体を分解し仮置きしていた床に対する荷重も低減でき
る。[0007] By installing a water tank above the turbine body and the piping around the turbine, it is possible to have a shielding performance instead of a steel plate during operation of the reactor. On the other hand, during shutdown of the reactor, the water is removed from the tank to reduce the weight of the shield, and the radiation shield can be easily disassembled. Further, the load on the floor where the conventional steel plate radiation shield is disassembled and temporarily placed can be reduced.
【0008】[0008]
【発明の実施の形態】本発明の一実施例を図1,図2に
より説明する。同図で2はタービン本体、3はタービン
周りの配管である。水タンク1は、これらの機器及び配
管の上部に従来の鋼板性放射線遮へい体の代わりに設置
した放射線遮へい体である。また、水タンク1内の水を
回収,供給するためのタンク6及びポンプ7を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. In the figure, reference numeral 2 denotes a turbine body, and reference numeral 3 denotes piping around the turbine. The water tank 1 is a radiation shield installed above these devices and pipes instead of the conventional steel plate radiation shield. Also, a tank 6 and a pump 7 for collecting and supplying water in the water tank 1 are shown.
【0009】他の実施例を図3により説明する。同図で
8はタービン本体等を収納している建屋以外の建屋内に
ある水貯留設備の貯蔵タンク又は貯蔵槽であり、その周
りは、貯蔵槽内の水を原子炉ウェル9に供給するための
ポンプ10で構成されている。Another embodiment will be described with reference to FIG. In the figure, reference numeral 8 denotes a storage tank or a storage tank of a water storage facility in a building other than the building that houses the turbine body and the like, around which water in the storage tank is supplied to the reactor well 9. Pump 10.
【0010】原子炉施設には、原子炉運転中にはほとん
ど使用せず、原子炉停止時には原子炉ウェル内に水を満
たし放射線遮へい体として使用するために水供給用の貯
蔵タンク又は貯蔵槽8がある。図2に示す構成にするこ
とにより、タービン本体等に遮へい体を必要とする原子
炉運転中に対し、原子炉運転停止中には水を溜めておく
必要のない貯蔵タンク又は貯蔵槽8をタービン本体等の
周りの水タンク1で代用して、原子炉運転中と運転停止
中に水回収・供給を行うことができる。[0010] The reactor facility is hardly used during the operation of the reactor, and when the reactor is shut down, a water storage tank or storage tank 8 is provided to fill the reactor well with water and use it as a radiation shield. There is. With the configuration shown in FIG. 2, the storage tank or the storage tank 8 that does not need to store water while the reactor is stopped is operated while the reactor is in operation, which requires a shielding body on the turbine body or the like. The water tank 1 around the main body or the like can be used as a substitute to recover and supply water during the operation of the reactor and during shutdown.
【0011】[0011]
【発明の効果】本発明によれば定期検査時には水タンク
内の水を回収することで放射線遮へい体重量の軽量化が
可能となり分解も容易となる。According to the present invention, the weight of the radiation shield can be reduced and the disassembly is facilitated by collecting the water in the water tank at the time of the periodic inspection.
【0012】別途必要であった水貯留設備(貯蔵タンク
又は貯蔵槽)がタービン本体等を取り囲む放射線遮へい
体の水タンクと共用できるため、従来の水貯留設備(貯
蔵タンク又は貯蔵槽8)が削減、又は不要とすることが
できる。Since the separately required water storage equipment (storage tank or storage tank) can be shared with the radiation shielding water tank surrounding the turbine body and the like, the conventional water storage equipment (storage tank or storage tank 8) is reduced. Or unnecessary.
【図1】本発明の一実施例のタービン本体及びタービン
周りの遮へい体設置の説明図。FIG. 1 is an explanatory view of a turbine main body and installation of shields around the turbine according to an embodiment of the present invention.
【図2】本発明の一実施例のタービン本体及びタービン
周りの遮へい体設置の説明図。FIG. 2 is an explanatory view of a turbine main body and installation of shields around the turbine according to one embodiment of the present invention.
【図3】水貯蔵設備と機能を共用した場合の説明図。FIG. 3 is an explanatory diagram in the case of sharing a function with a water storage facility.
【図4】従来のタービン本体及びタービン周りの遮へい
体設置の説明図。FIG. 4 is an explanatory view of a conventional turbine main body and installation of shields around the turbine.
【図5】従来のタービン本体及びタービン周りの遮へい
体設置の説明図。FIG. 5 is an explanatory view of a conventional turbine main body and installation of shields around the turbine.
1…水タンク、2…タービン本体、3…タービン周りの
配管、4…支持構造、5…ベント、6…タンク、7,1
0…ポンプ、8…貯蔵タンク又は貯蔵槽、9…原子炉ウ
ェル、11…鋼板。DESCRIPTION OF SYMBOLS 1 ... Water tank, 2 ... Turbine main body, 3 ... Piping around turbine, 4 ... Support structure, 5 ... Vent, 6 ... Tank, 7, 1
0: pump, 8: storage tank or storage tank, 9: reactor well, 11: steel plate.
フロントページの続き (72)発明者 武井 幹郎 茨城県日立市幸町三丁目2番1号 日立エ ンジニアリング株式会社内 (72)発明者 大野 重則 茨城県日立市幸町三丁目2番1号 日立エ ンジニアリング株式会社内Continued on the front page (72) Inventor Mikio Takei 3-2-1 Sachimachi, Hitachi-shi, Ibaraki Prefecture Within Hitachi Engineering Co., Ltd. (72) Inventor Shigenori Ohno 3-2-1 Sachimachi, Hitachi-shi, Hitachi, Hitachi Inside Engineering Co., Ltd.
Claims (1)
中はタービン本体及び上記タービン本体周り配管の上部
に水タンクを設置することを特徴とする放射線遮へい
体。1. A radiation shield in a boiling water reactor facility, wherein a water tank is installed above the turbine body and piping around the turbine body during operation of the reactor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9030059A JPH10227886A (en) | 1997-02-14 | 1997-02-14 | Radiation shield body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9030059A JPH10227886A (en) | 1997-02-14 | 1997-02-14 | Radiation shield body |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH10227886A true JPH10227886A (en) | 1998-08-25 |
Family
ID=12293263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9030059A Pending JPH10227886A (en) | 1997-02-14 | 1997-02-14 | Radiation shield body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH10227886A (en) |
-
1997
- 1997-02-14 JP JP9030059A patent/JPH10227886A/en active Pending
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