JPH0792516B2 - Radiation shield - Google Patents
Radiation shieldInfo
- Publication number
- JPH0792516B2 JPH0792516B2 JP61106748A JP10674886A JPH0792516B2 JP H0792516 B2 JPH0792516 B2 JP H0792516B2 JP 61106748 A JP61106748 A JP 61106748A JP 10674886 A JP10674886 A JP 10674886A JP H0792516 B2 JPH0792516 B2 JP H0792516B2
- Authority
- JP
- Japan
- Prior art keywords
- shield
- shielding
- construction
- shielding material
- heating mechanism
- 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.)
- Expired - Lifetime
Links
- 230000005855 radiation Effects 0.000 title claims description 11
- 238000010276 construction Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 206010073306 Exposure to radiation Diseases 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000003795 desorption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、原子力発電プラントなどに配設される放射線
遮蔽装置に関するものである。Description: TECHNICAL FIELD The present invention relates to a radiation shielding device arranged in a nuclear power plant or the like.
（従来の技術） 原子力発電プラントにおいては、放射線の遮蔽対策とし
て鉛による遮蔽体が配設されており、該遮蔽体の従来構
築法としては、鉛ブロツクを所望時、所望箇所にその都
度積み上げて構築する方法、恒久的に構築、設置する方
法があり、さらに、大型重量物となる遮蔽体の重量を軽
減するために（耐震対策）、遮蔽体を球状の遮蔽材出入
れによつて構築する方法もある。(Prior Art) In a nuclear power plant, a shielding body made of lead is arranged as a radiation shielding measure. As a conventional construction method of the shielding body, a lead block is piled up at a desired position at a desired position each time. There is a method of building, a method of permanently building and installing, and in addition, in order to reduce the weight of the shield which becomes a large heavy object (anti-seismic measure), the shield is constructed by putting in and out a spherical shield material. There is also a method.
（発明が解決しようとする問題点） 従来の前記放射線遮蔽体において、鉛ブロツクを所望
時、所望箇所にその都度積み上げて構築する方法は、大
規模の場合は作業時間が著しく長くなりそれに伴う被曝
が無視できず、適用規模、箇所からの制約があり、遮蔽
体を恒久設備して構築、設置する方法は、大規模になる
とプラント運転中の耐震対策上からその支持枠の剛性を
高める必要があつて、構造が大型化し経済性面、プラン
ト配置計画面へのインパクトが非常に大きく、設置箇
所、規模が限定される。さらに、遮蔽体の重量軽減対策
（耐震対策）として球状の遮蔽材を必要に応じて出入れ
できるようにした構築法は、球相互間に空間ができ平均
密度の減少により遮蔽効果が低減され、遮蔽材の脱着時
に、変形、損傷（下部球）によつて排出できないで一部
残存されるとともに、構造が大型、複雑となり経済性
面、プラント配置計画面へのインパクトが非常に大き
く、設置箇所、規模が限定される、などの問題点があ
る。(Problems to be Solved by the Invention) In the conventional radiation shield, the method of constructing lead blocks by stacking them at desired places each time, when the scale is large, requires a significantly long working time, which results in exposure to radiation. Cannot be ignored, and there are restrictions from the scale of application and location, and the method of constructing and installing the shield with permanent equipment requires increasing the rigidity of the support frame for earthquake resistance measures during plant operation when the scale becomes large. At the same time, the size of the structure is large and the impact on the economy and plant layout is very large, and the installation location and scale are limited. In addition, as a measure to reduce the weight of the shield (anti-seismic measure), a construction method that allows spherical shielding materials to be put in and out as needed creates a space between the spheres, reducing the average density and reducing the shielding effect. When the shielding material is attached or detached, it cannot be discharged due to deformation or damage (lower sphere), and some of it remains, and the structure is large and complicated, which has a great impact on economic efficiency and plant layout planning. However, there are problems such as limited scale.
（問題点の解決手段） 本発明は、前記のような問題点に対処するために開発さ
れた放射線遮蔽装置であつて、遮蔽材の注入口と排出口
を備え加熱機構が添設された遮蔽材の充填施工空間を有
する遮蔽体施工兼支持枠と、加熱機構が添設された注入
弁付き遮蔽材運搬容器を具備したことにより、遮蔽体の
施工、脱着性能、放射線遮蔽性能を高めるとともに、遮
蔽体の強度増加、大幅な重量軽減を可能とし、前記のよ
うな問題点を解消している。(Means for Solving Problems) The present invention is a radiation shielding device developed to solve the above-mentioned problems, in which a shielding member is provided with an inlet and an outlet and a heating mechanism is additionally provided. By including a shield construction and support frame having a material filling construction space, and a shielding material transport container with an injection valve that is additionally provided with a heating mechanism, while enhancing the construction of the shield, desorption performance, and radiation shielding performance, The strength of the shield can be increased and the weight can be significantly reduced, and the above-mentioned problems are solved.
（作 用） 加熱機構が添設された注入弁付き遮蔽材運搬容器によつ
て、溶融された遮蔽材を遮蔽体施工兼支持枠に注入口か
ら注入すると、該遮蔽材は遮蔽体施工兼支持枠の充填施
工空間内に充填、固化されて遮蔽体に施工され、同充填
施工空間内で所望形状の遮蔽体が高密度で形成され前記
支持枠によつて支持されるとともに、添設された加熱機
構によつて前記遮蔽体を溶融して排出口から取出すこと
により脱着される。(Operation) When the molten shielding material is injected into the shield construction / support frame from the injection port by the shielding valve transportation container with the injection valve equipped with the heating mechanism, the shielding material is shielded / supported. It is filled and solidified in the filling construction space of the frame and is applied to the shielding body, and the shielding body of a desired shape is formed at a high density in the filling construction space and is supported by the supporting frame and is additionally provided. The shield is melted by the heating mechanism and taken out from the discharge port to be detached.
（実施例） 第１図に本発明の放射線遮蔽装置の一適用例を示し、第
２図ないし第４図に同放射線遮蔽装置の一実施例を示し
ており、第１図に示す原子力プラントにおいて、再循環
ポンプ（４）における保守点検時の主な線源としては、
炉心（12）と蒸気ドラム（１）間に設けられた出口管群
（２）があり、その対策として遮蔽体（３）の設置が必
要であつて、該遮蔽体（３）は、幅約13m、高さ約10mに
達する非常に大きい構造物となる。(Example) FIG. 1 shows an application example of the radiation shielding apparatus of the present invention, and FIGS. 2 to 4 show an example of the radiation shielding apparatus. In the nuclear power plant shown in FIG. The main sources of radiation during maintenance and inspection of the recirculation pump (4) are:
There is an outlet tube group (2) provided between the core (12) and the steam drum (1), and as a countermeasure against it, it is necessary to install a shield (3), and the shield (3) has a width of about It will be a very large structure with a height of 13m and a height of about 10m.
第２図ないし第４図に示す本発明の放射線遮蔽装置の一
実施例について説明すると、第２図に示すように遮蔽体
の形状に対応して形成された遮蔽材の充填施工空間（図
示省略）を有する箱状の遮蔽体施工兼支持枠（５）と、
注入弁付き遮蔽材運搬容器（９）とを具備し、前記遮蔽
体施工兼支持枠（５）は、遮蔽体の設置位置に配置され
ラグ（10）を介してサポート（15）で支持されるととも
に、上部に遮蔽材の注入口（６）を備え、下部に排出口
（８）と備え、さらに、第４図に示すように外面側に添
設された複数のヒータからなる加熱機構（11）が設けら
れ、その外側には保温材（16）が付設されている。An embodiment of the radiation shielding apparatus of the present invention shown in FIGS. 2 to 4 will be described. As shown in FIG. 2, a shielding material filling construction space formed corresponding to the shape of the shield (illustration omitted). A box-shaped shield construction / support frame (5) having
A shielding material transport container (9) with an injection valve is provided, and the shielding body construction / support frame (5) is arranged at the installation position of the shielding body and supported by a support (15) via a lug (10). A heating mechanism (11) is also provided which has an inlet (6) for the shielding material at the upper part, an outlet (8) at the lower part, and a plurality of heaters attached to the outer surface side as shown in FIG. ) Is provided, and a heat insulating material (16) is attached to the outside thereof.
さらに、前記注入弁付き遮蔽材運搬容器（９）は、第３
図に示すように外側に添設された複数のヒータからなる
加熱機構（11）が設けられているとともに、その外側に
保温材（16）が付設され、下部には注入弁（13）が設け
られた構成になつている。Further, the shielding material carrying container (9) with an injection valve is provided with a third
As shown in the figure, a heating mechanism (11) consisting of a plurality of heaters attached to the outside is provided, a heat insulating material (16) is attached to the outside, and an injection valve (13) is attached to the bottom. It has a specific configuration.
本発明の実施例は、前記のような構成になつており、第
２図に示すように遮蔽体施工兼支持枠（５）を遮蔽体設
置箇所に配置しラグ（10）でサポート（15）に連結して
恒久設備として配設する。The embodiment of the present invention is configured as described above, and as shown in FIG. 2, the shield construction / support frame (5) is arranged at the shield installation location and supported by the lug (10). Installed as a permanent facility by connecting to.
次に、注入弁付き遮蔽材運搬容器（９）をクレーン等で
吊持、運搬し注入弁（13）を注入口（６）上のホツパー
（７）上に配置し、加熱機構（11）で溶融されている遮
蔽材を、注入弁（13）からホツパー（７）、注入口
（６）を介して遮蔽体施工兼支持枠（５）内部の充填施
工空間内に注入、充填して固化することにより、第４図
に示すように遮蔽体施工兼支持枠（５）内に遮蔽体（1
4）が施工される。Next, the shielding material carrying container (9) with an injection valve is hung and carried by a crane or the like, the injection valve (13) is arranged on the hopper (7) above the injection port (6), and the heating mechanism (11) is used. The molten shielding material is injected from the injection valve (13) through the hopper (7) and the injection port (6) into the filling construction space inside the shield construction / support frame (5), and is filled and solidified. As a result, as shown in FIG. 4, the shield (1
4) is constructed.
該遮蔽体（14）は、遮蔽体施工兼支持枠（５）の充填施
工空間内で所望の厚さ、形状に一連にかつ密に形成され
るとともに、同支持枠（５）によつて支持される。The shield (14) is formed in a series in a desired thickness and shape in a filling construction space of the shield construction / support frame (5) and densely, and is supported by the support frame (5). To be done.
遮蔽体（14）の不要時は、加熱機構（11）によつて前記
遮蔽体（14）を溶融し排出口（８）を開いて排出して、
注入弁付き遮蔽材運搬容器（９）で受取つて搬出するこ
とにより行われる。When the shield (14) is unnecessary, the shield (14) is melted by the heating mechanism (11) and the discharge port (8) is opened to discharge.
It is carried out by receiving and carrying out with a shielding material transport container (9) with an injection valve.
（発明の効果） 本発明は、前記のような構成になっているので、遮蔽材
は加熱機構により流動状態として、使用することがで
き、これを遮蔽体施工兼支持枠内に注入することによ
り、遮蔽材は充填固化されて遮蔽体に施工され、遮蔽体
の施工が容易・迅速に行なわれ、而も遮蔽体の不要時は
遮蔽体施工兼支持枠内の加熱機構によって遮蔽材を溶融
し、これを排出できるため、遮蔽体は恒久的に作ること
なく耐震構造物としての設計が容易となる等の効果を有
する。(Effects of the Invention) Since the present invention has the above-described configuration, the shielding material can be used in a fluid state by the heating mechanism, and by injecting this into the shielding body construction / support frame. The shielding material is filled and solidified and applied to the shielding body, so that the shielding body can be installed easily and quickly, and when the shielding body is not needed, the shielding material is melted by the shielding body construction and the heating mechanism in the support frame. Since it can be discharged, it has the effect of facilitating the design as an earthquake-resistant structure without making the shield permanently.
さらに、加熱機構によつて前記遮蔽体を溶融し排出口か
ら容易、迅速に排出して脱着でき、遮蔽体の施工、脱着
に伴うコスト節減、被曝低減など多くの効果が得られ
る。Further, the shield can be melted by the heating mechanism and easily and quickly discharged from the discharge port to be attached / detached, and many effects such as construction of the shield, cost reduction due to attachment / detachment, and reduction of radiation exposure can be obtained.
以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるものである。Although the present invention has been described with reference to the embodiments, the present invention is of course not limited to such embodiments, and various design modifications can be made without departing from the spirit of the present invention. .
第１図は本発明の装置の一設置例を示す原子力プラント
の縦断面図、第２図は本発明装置の一実施例を示す斜視
図、第３図は注入弁付き遮蔽材運搬容器の拡大側面図、
第４図は遮蔽体施工兼支持枠の部分縦断面図である。 5:遮蔽体施工兼支持枠 6:注入口、8:排出口 9:注入弁付き遮蔽材運搬容器 13:注入弁、14:遮蔽体FIG. 1 is a longitudinal sectional view of a nuclear power plant showing an example of installation of the device of the present invention, FIG. 2 is a perspective view showing an embodiment of the device of the present invention, and FIG. 3 is an enlargement of a shielding material transport container with an injection valve. Side view,
FIG. 4 is a partial vertical sectional view of the shield construction / support frame. 5: Shield construction and support frame 6: Inlet port, 8: Outlet port 9: Shield material transport container with injection valve 13: Inject valve, 14: Shield
Claims (1)
添設された遮蔽材の充填施工空間を有する遮蔽体施工兼
支持枠と、加熱機構が添設された注入弁付き遮蔽材運搬
容器を具備したことを特徴とする放射線遮蔽装置。1. A shield constructing / supporting frame having a shielding material filling construction space provided with a shielding material injection port and a discharge mechanism and having a heating mechanism attached thereto, and a shielding material with an injection valve having a heating mechanism attached thereto. A radiation shielding device comprising a transport container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61106748A JPH0792516B2 (en) | 1986-05-12 | 1986-05-12 | Radiation shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61106748A JPH0792516B2 (en) | 1986-05-12 | 1986-05-12 | Radiation shield |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62263500A JPS62263500A (en) | 1987-11-16 |
| JPH0792516B2 true JPH0792516B2 (en) | 1995-10-09 |
Family
ID=14441533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61106748A Expired - Lifetime JPH0792516B2 (en) | 1986-05-12 | 1986-05-12 | Radiation shield |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0792516B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003280490A1 (en) * | 2002-07-01 | 2004-01-19 | Elekta Ab (Publ) | A mobile building unit as well as a building and a method for constructing the building |
| JP5545788B1 (en) * | 2013-07-07 | 2014-07-09 | 株式会社安藤・間 | Radiation shielding container, radiation shielding box, and method for containing radioactive waste |
| CN113972021B (en) * | 2020-07-23 | 2026-04-14 | 中核核电运行管理有限公司 | Modular combined shielding device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441080B2 (en) * | 1973-10-08 | 1979-12-06 | ||
| JPS5357197U (en) * | 1976-10-18 | 1978-05-16 |
-
1986
- 1986-05-12 JP JP61106748A patent/JPH0792516B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62263500A (en) | 1987-11-16 |
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