JPS6114000Y2 - - Google Patents
Info
- Publication number
- JPS6114000Y2 JPS6114000Y2 JP1979114483U JP11448379U JPS6114000Y2 JP S6114000 Y2 JPS6114000 Y2 JP S6114000Y2 JP 1979114483 U JP1979114483 U JP 1979114483U JP 11448379 U JP11448379 U JP 11448379U JP S6114000 Y2 JPS6114000 Y2 JP S6114000Y2
- Authority
- JP
- Japan
- Prior art keywords
- reactor
- work
- pressure vessel
- lighting device
- present
- 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
Links
- 239000000446 fuel Substances 0.000 description 12
- 238000007689 inspection Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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
Description
【考案の詳細な説明】
本考案は沸騰水型原子炉において燃料交換その
他保守点検時の作業性向上を図るのに好適な水中
照明装置に関する。[Detailed Description of the Invention] The present invention relates to an underwater lighting device suitable for improving workability during fuel exchange and other maintenance inspections in a boiling water nuclear reactor.
定期点検の如く原子炉を止めて行う保守点検に
おいて原子炉内を照明するために水中照明を必要
とする。 Underwater lighting is required to illuminate the inside of a nuclear reactor during maintenance inspections such as periodic inspections when the reactor is shut down.
第１図は燃料交換作業時における原子炉圧力容
器まわりを示す。 Figure 1 shows the area around the reactor pressure vessel during fuel exchange work.
符号１は原子炉圧力容器であり、この原子炉圧
力容器の内部に燃料集合体２が収めれており、燃
料集合体２は内部支持構造物３によつて支持され
ている。 Reference numeral 1 denotes a reactor pressure vessel, and a fuel assembly 2 is housed inside this reactor pressure vessel, and the fuel assembly 2 is supported by an internal support structure 3.
原子炉圧力容器１の上方には燃料集合体２を交
換する場合に水を張るために原子炉ウエル４が設
けられていて燃料交換作業時の放射線被曝の遮蔽
を行つている。燃料交換作業は原子炉ウエル４の
上部に設けられた燃料交換機５から行われる。燃
料交換作業は水中下における遠隔作業のため作業
性が非常に悪く、その上従来の照明では広域用と
狭域用の２種類の照明具を必要な場所の近くに移
動して照明するため照明具のコードが動き水面が
ゆれて原子炉内が見えにくくなつたり、照明具が
保守点検時に作業の妨げをするという問題があ
り、作業者の放射線被曝を増大するという欠点が
あつた。 A reactor well 4 is provided above the reactor pressure vessel 1 to fill with water when replacing the fuel assembly 2, thereby shielding radiation exposure during fuel replacement work. The fuel exchange work is performed from a fuel exchange machine 5 provided at the top of the reactor well 4. Refueling work is very difficult to do because it is a remote operation under water.In addition, with conventional lighting, two types of lighting equipment, one for wide area and one for narrow area, are moved close to the required area. There were problems in that the cords of the equipment moved and the water surface swayed, making it difficult to see inside the reactor, and that the lighting equipment obstructed maintenance and inspection work, increasing workers' radiation exposure.
本考案は上述の事情を考慮してなされたもの
で、燃料交換作業時、保守点検作業時における作
業性を向上させる水中照明装置を提供することを
目的としている。 The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide an underwater lighting device that improves workability during fuel exchange work and maintenance inspection work.
以下図面を参照して本考案の一実施例を説明す
る第１図、第２図に示すように、本考案の水中照
明装置は水中照明具６を原子炉圧力容器１の内壁
の円周にリング状に配置されたサポート上の水密
容器内に配置したものである。 An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the underwater lighting device of the present invention has an underwater lighting device 6 placed around the circumference of the inner wall of the reactor pressure vessel 1. It is placed in a watertight container on a ring-shaped support.
第２図において符号１は原子炉圧力容器であ
る。この原子炉圧力容器１の内壁には支持ブラケ
ツト１２が数個所溶接されている。支持ブラケツ
ト１２の上に水中照明具６のリング１３が円周状
にのつている。 In FIG. 2, reference numeral 1 indicates a reactor pressure vessel. Support brackets 12 are welded to the inner wall of the reactor pressure vessel 1 at several locations. A ring 13 of the underwater lighting device 6 rests circumferentially on the support bracket 12.
第３図は本考案の詳細を示すもので、符号１６
はハロゲン電球で２重管のシングルコイルで構成
されコイルの振れ止めのリング２６が取り付けら
れている。使用電流は100Vで容量は1KWであ
る。ハワゲン電球１６を保護するために前部には
アクリル製のランプカバー１４が取付けてありさ
らに保護金網１５で保護されている。 Figure 3 shows details of the present invention, with reference numeral 16.
The lamp is a halogen light bulb composed of a double-tube single coil, and a ring 26 to prevent the coil from steadying is attached. The current used is 100V and the capacity is 1KW. To protect the Hawagen light bulb 16, an acrylic lamp cover 14 is attached to the front and is further protected by a protective wire mesh 15.
ハロゲン電球１６をソケツト１７に差込み落下
防止のためのランプサポート２７で取付支持され
ている。ハロゲン電球１６からの配線はリング１
３を貫通して防水用ゴムサヤ１８で保護されてい
る。 A halogen light bulb 16 is inserted into a socket 17 and is supported by a lamp support 27 to prevent it from falling. Wiring from halogen bulb 16 is ring 1
3 and is protected by a waterproof rubber sheath 18.
原子炉内をより明るくするためハロゲン電球１
６の裏側には反射板１９が設けられている。水中
照明具はキヤブタイヤケーブル２０で原子炉内か
ら作業フロアまで配線されており遠隔でスイツチ
の入切を行える符号２１は差込用のコンセントで
ある。 1 halogen bulb to brighten the inside of the reactor
A reflector 19 is provided on the back side of 6. The underwater lighting equipment is wired from inside the reactor to the work floor by a cab-tire cable 20, and reference numeral 21 denotes a plug socket that can be switched on and off remotely.
本考案の水中照明装置は水中照明具６を原子炉
圧力容器１の内壁の円周にリング状に配置された
サポート上の水密容器の内に配置したことにより
保守点検時に作業を妨げるという問題がなく、水
中照明具を移動した時に発生するコードによる水
面のゆれ問題もなく燃料交換その他保守点検時の
作業性向上を図ることができる。 The underwater lighting device of the present invention has the problem that the underwater lighting device 6 is disposed inside a watertight container on a support arranged in a ring shape around the inner wall of the reactor pressure vessel 1, which obstructs work during maintenance and inspection. Therefore, there is no problem of the water surface shaking due to the cord that occurs when the underwater lighting equipment is moved, and it is possible to improve work efficiency during fuel exchange and other maintenance inspections.
以上説明したように本考案によれば以下の如き
効果を奏する。 As explained above, the present invention provides the following effects.
原子炉を止めて行う定期点検時の燃料交換作業
その他保守点検作業時において原子炉内を全面に
照明できることにより水中における遠隔作業の作
業性向上を図るとともに作業者の放射線被曝量を
抵減させるという効果がある。また水中照明具を
固定しているため移動する作業がなくなり移動し
た時の水面のゆれ問題がなく、また作業の妨げる
という問題もなくなり作業性の向上が図れるとと
もに原子力発電所の稼業率をも向上させることが
できる。 By being able to illuminate the entire inside of the reactor during fuel replacement work and other maintenance work during periodic inspections when the reactor is shut down, it is said to improve the workability of remote underwater work and reduce radiation exposure for workers. effective. In addition, because the underwater lighting equipment is fixed, there is no need to move it, there is no problem with the water surface shaking when it is moved, and there is no problem of it interfering with work, improving work efficiency and increasing the operating rate of the nuclear power plant. can be done.
以上本考案を好適な実施例に基づいて説明した
が本考案によれば原子炉の燃料交換時の作業性を
向上させることができる。 The present invention has been described above based on preferred embodiments, but according to the present invention, workability during fuel exchange of a nuclear reactor can be improved.
第１図は原子炉圧力容器まわりを示す縦断面
図、第２図は本考案の一実施例を示す縦断面図、
第３図は本考案の要部を示す縦断面図である。
１……原子炉圧力容器、６……水中照明具、１
２……支持ブラケツト、１３……リング。
FIG. 1 is a vertical sectional view showing the area around the reactor pressure vessel, FIG. 2 is a vertical sectional view showing an embodiment of the present invention,
FIG. 3 is a longitudinal sectional view showing the main parts of the present invention. 1... Reactor pressure vessel, 6... Underwater lighting, 1
2...Support bracket, 13...Ring.
Claims (1)
れたサポート上の水密容器内に照明具を設けたこ
とを特徴とする水中照明装置。 An underwater lighting device characterized in that a lighting device is provided in a watertight container on a support arranged in a ring shape around the inner wall of a reactor pressure vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979114483U JPS6114000Y2 (en) | 1979-08-22 | 1979-08-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979114483U JPS6114000Y2 (en) | 1979-08-22 | 1979-08-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5633595U JPS5633595U (en) | 1981-04-02 |
| JPS6114000Y2 true JPS6114000Y2 (en) | 1986-04-30 |
Family
ID=29346734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979114483U Expired JPS6114000Y2 (en) | 1979-08-22 | 1979-08-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6114000Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6270591U (en) * | 1985-10-21 | 1987-05-06 |
-
1979
- 1979-08-22 JP JP1979114483U patent/JPS6114000Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5633595U (en) | 1981-04-02 |
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