JPS61278794A - Supply and exhaust duct equipment on the reactor operating floor - Google Patents
Supply and exhaust duct equipment on the reactor operating floorInfo
- Publication number
- JPS61278794A JPS61278794A JP60119735A JP11973585A JPS61278794A JP S61278794 A JPS61278794 A JP S61278794A JP 60119735 A JP60119735 A JP 60119735A JP 11973585 A JP11973585 A JP 11973585A JP S61278794 A JPS61278794 A JP S61278794A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust duct
- air supply
- air
- crane
- supply
- 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.)
- Granted
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
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
- Accessories Of Cameras (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、沸騰水型原子力発電設備の使用済燃料プール
が設置されている原子炉運転階の給排気ダクトシステム
に係り、特に、運転階における作業環境改善および放射
能汚染低減効果にすぐれた給排気ダクト装置に関するも
のである。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a supply/exhaust duct system for a reactor operating floor in which a spent fuel pool of a boiling water nuclear power generation facility is installed, and in particular, to This invention relates to an air supply/exhaust duct device that is effective in improving the working environment and reducing radioactive contamination.
従来の原子炉運転階の換気方法は第４図に示すように、
ドライヤ・セパレータプール５側に床面上壁面給気ダク
ト２を設置して、新鮮空気を運転階床に給気し、各ドラ
イヤ・セパレータプール５、原子炉ウェル６、使用済燃
料プール７壁面に埋込まれた排気用ダクト３および使用
済燃料プール側床面上の壁面に設置された排気用ダクト
１から排気することにより、運転階の作業環境の維持を
おこなっていたまた、上記のプール壁面の埋込ダクト３
はプールから飛散される放射性物質の捕集を目的として
設置されているものである。The conventional ventilation method for the reactor operating floor is as shown in Figure 4.
An air supply duct 2 on the floor above the wall is installed on the side of the dryer/separator pool 5 to supply fresh air to the operating floor and to the wall of each dryer/separator pool 5, reactor well 6, and spent fuel pool 7. The work environment on the operating floor was maintained by exhausting air from the embedded exhaust duct 3 and the exhaust duct 1 installed on the wall above the floor on the spent fuel pool side. embedded duct 3
are installed for the purpose of collecting radioactive materials scattered from the pool.
ところが、従来の埋込ダクトの捕集能力（プールから飛
散される放射性物質の捕集能力）は必ずしも充分でない
ことが最近に至って明らかとなり、これに代るものとし
て、例えば第４図に仮想線で示したように、天井屋根ト
ラス１０に排気ダクト１を設けると共に、建屋の壁面付
近に給気ダクト（図示せず）を設ける方法が考えられる
。こうした創作は本出願人から別途出願済みのものであ
る。However, it has recently become clear that the collection capacity of conventional buried ducts (capturing radioactive materials scattered from pools) is not necessarily sufficient. As shown in Figure 1, a possible method is to provide the exhaust duct 1 in the ceiling roof truss 10 and also provide an air supply duct (not shown) near the wall of the building. These creations have been filed separately by the applicant.
しかし、建屋の壁面付近に給気ダクトを設けると、床面
上に大形の仮置物を置いたときに排気を妨げる虞れが有
る上に、天井クレーン８の吊具１７やその吊持物が前記
給気ダクトに衝突する虞れも有る。However, if the air supply duct is installed near the wall of the building, there is a risk that the exhaust air will be obstructed when large temporary objects are placed on the floor. There is also a risk of collision with the air supply duct.
本発明は上述の事情に鑑みて為されたもので、原子炉運
転階の室内空間の上方寄りの個所から効率良く給気する
ことができ、しかも、天井クレーンと干渉したり、床上
の仮置物によって換気を妨げられたりする虞れの無い給
排気ダクト装置を提供しようとするものである。換気を
良くすることによって、作業環境内に放射性物質が滞留
しなくなり１作業者の被ばく危険性が軽減されることを
当然に期待できることとなる。The present invention has been made in view of the above-mentioned circumstances, and it is possible to efficiently supply air from a point near the upper part of the indoor space on the reactor operation floor, and to avoid interference with overhead cranes and to prevent temporary installations on the floor. It is an object of the present invention to provide an air supply/exhaust duct device that is free from the risk of hindering ventilation. By improving ventilation, it can be naturally expected that radioactive materials will not accumulate in the working environment and the risk of radiation exposure for each worker will be reduced.
上記の目的を達成するため１本発明の装置は。 To achieve the above object, one aspect of the present invention is an apparatus.
天井クレーンを備えた原子炉運転階の給排気用ダクト装
置において、上記天井クレーンのクレーンガータの鉄骨
構造物を板状部材で覆って風道を構成し、かつ、上記の
風道に給気用の開口を設けたことを特徴とする。In a supply/exhaust duct system for a reactor operation floor equipped with an overhead crane, the steel structure of the crane gutter of the overhead crane is covered with a plate-like member to form a wind passage, and the air passage is used for supplying air. It is characterized by having an opening.
次に、本発明の１実施例を第１図乃至第３因について説
明する。Next, one embodiment of the present invention will be explained with reference to FIG. 1 to the third factor.
第２図は、原子炉運転階を、ドライヤ・セパレータプー
ル５・原子炉ウェル６・使用済燃料プール７の列設方向
と平行な垂直面で切断した断面図である。第１図は第２
図の１−１断面図であり。FIG. 2 is a sectional view of the reactor operating floor taken along a vertical plane parallel to the direction in which the dryer, separator pool 5, reactor well 6, and spent fuel pool 7 are arranged. Figure 1 is 2
It is a 1-1 sectional view of the figure.
第３図は第１図の■部拡大詳細図である。FIG. 3 is an enlarged detailed view of the section ``■'' in FIG. 1.
沸騰水型原子力発電設備の原子炉運転階は、第２図に示
すごとく、使用済燃料を貯蔵するための使用済燃料プー
ル７と、原子炉圧力容器を解放して使用済燃料を移動す
るための原子炉ウェル６と、原子炉圧力容器中のドライ
ヤ・セパレータを仮置きするためのドライヤ・セパレー
タプール５とが設置され、定期点検期間中はこれら３つ
のプールは満水状態となっている。また運転階には、ド
ライヤ・セパレート等を吊り上げるための１２５＄クレ
ーン８が設置されている。また運転階には、作業員の作
業環境を維持するために、新鮮な空気を運転階に供給す
る給気ダクト２２、及び天井トラス取付形の排気ダクト
１（第１図参照）を設けて給排気ダクト装置が構成され
ている。As shown in Figure 2, the reactor operating floor of boiling water nuclear power generation equipment includes a spent fuel pool 7 for storing spent fuel and a pool for releasing the reactor pressure vessel and moving the spent fuel. A reactor well 6 and a dryer/separator pool 5 for temporarily storing the dryer/separator in the reactor pressure vessel are installed, and these three pools are filled with water during the regular inspection period. Additionally, a 125-dollar crane 8 is installed on the operating floor to lift dryers, separates, etc. In addition, in order to maintain the working environment for workers, the operating floor is equipped with an air supply duct 22 that supplies fresh air to the operating floor, and a ceiling truss-mounted exhaust duct 1 (see Figure 1). An exhaust duct device is configured.
第１図に示した給気ダクト２２の構成を第３図について
詳細に説明する。第１図に示した■′部は、ｍ部（第３
図）と対称である。The configuration of the air supply duct 22 shown in FIG. 1 will be explained in detail with reference to FIG. Part ■' shown in Figure 1 is part m (third
It is symmetrical to the figure).
天井クレーンのクレーンガータ１１の壁面のふところ部
を風道として利用するように、その鉄骨構造にプレート
１３を取り付ける。第３図に示した９はクレーンの桁、
１２はクレーン用レール、４は原子炉建屋外壁、１５は
クレーンガータの支持台である。A plate 13 is attached to the steel structure of the overhead crane so that the bottom part of the wall surface of the crane gutter 11 of the overhead crane is used as a wind passage. 9 shown in Figure 3 is the girder of the crane.
12 is a crane rail, 4 is a reactor building outer wall, and 15 is a support stand for a crane gutter.
第２図に示すように、クレーンガータ１１に、丸形の給
気口１４を列設し、この給気口１４から運転階に新鮮な
空気を供給する。As shown in FIG. 2, the crane gutter 11 is provided with a row of round air supply ports 14, through which fresh air is supplied to the operating floor.
第３図に示す如く、前記の給気口１４には風量調整用の
シャッタ１６を設置し、多数の給気口１４からほぼ同風
量の空気を供給するため、その開度を調節できるように
なっている。As shown in FIG. 3, a shutter 16 for adjusting the air volume is installed in the air supply port 14, and in order to supply almost the same amount of air from a large number of air supply ports 14, the degree of opening can be adjusted. It has become.
また、給気口１４の形状が丸型となっているためクレー
ンガータ１１の強度を著しく低下させる虞れが無い。Further, since the air supply port 14 has a round shape, there is no possibility that the strength of the crane gutter 11 will be significantly reduced.
また、本発明を適用すると、給気ダクトの給気口１４の
高さは必然的に天井クレーンのガータ１１の高さとなり
、床面に対して相当の高所に位置する。このため、床面
に器具類を仮置きしても給排気を妨げる虞れが無い。Furthermore, when the present invention is applied, the height of the air supply port 14 of the air supply duct is inevitably the same as the height of the gutter 11 of the overhead crane, and is located at a considerable height relative to the floor surface. Therefore, even if instruments are temporarily placed on the floor, there is no risk of interfering with air supply and exhaust.
本実施例においては、天井クレーンのクレーンガータと
一体型に構成した給気ダクトにより、運転床の新鮮空気
を供給できるので下記の効果も確認された。In this example, fresh air can be supplied from the operating floor by the air supply duct integrated with the crane gutter of the overhead crane, and the following effects were also confirmed.
（ａ）使用済燃料プール、原子炉ウェルおよびドライヤ
・セパレータプール線上に平行して建屋壁面に給気ダク
トを設置することが可能である。(a) It is possible to install an air supply duct on the building wall parallel to the spent fuel pool, reactor well, and dryer separator pool line.
（ｂ）上記（ａ）項の結果として、壁面給気、天井排気
の新換気ダクトシステムが可能となり、プールからの拡
散放射能捕集効果にとって著しい向上となる。(b) As a result of item (a) above, a new ventilation duct system with wall air supply and ceiling exhaust will be possible, which will significantly improve the effectiveness of collecting diffuse radioactivity from the pool.
（Ｃ）給気ダクトとクレーンガータが一体型となるため
、給気ダクト用サポート等が省略でき、Ｎ酪化が図られ
ると同時に経済性が向上する。(C) Since the air supply duct and the crane gutter are integrated, supports for the air supply duct, etc. can be omitted, and at the same time, the use of nitrogen is achieved and economical efficiency is improved.
以上詳述したように、本発明の給排気ダクト装置を適用
すると、原子炉運転階の室内空間の上方寄りの個所から
効率良く給気することができ、しかも、天井クレーンと
干渉したり、床上の仮置物によって換気を妨げられたり
する虞れが無いという優れた実用的効果を奏し、作業員
の被ばく低減に貢献するところ多大である。As described in detail above, when the supply and exhaust duct device of the present invention is applied, air can be efficiently supplied from a point near the upper part of the indoor space on the reactor operating floor. It has an excellent practical effect in that there is no risk of ventilation being obstructed by temporary objects, and it greatly contributes to reducing radiation exposure to workers.
第１図乃至第３図は本発明の１実施例を示し、第１図は
第２図のＩ−Ｉ断面図、第２図は第１図の■−■断面図
、第３図は第１図の■部拡大詳細図である。第４図は先
行技術に係る給排気ダクト装置の説明図である。
１・・・排気ダクト、２・・・給気ダクト、３・・・プ
ール埋込ダクト、４・・・原子炉建屋外壁、５・・・ド
ライヤ・セパレータプール、６・・・原子炉ウェル、７
・・・使用済燃料プール、８・・・天井クレーン、９・
・・クレーン桁、１１・・・クレーンガータ、１２・・
・天井クレーン用レール、１３・・・プレート、１４・
・・給気口、１５・・・クレーンガータ支持台、１６・
・・シャッター。
２１・・・排気ダクト、２２・・・給気ダクト。1 to 3 show one embodiment of the present invention, FIG. 1 is a sectional view taken along line II in FIG. 2, FIG. 2 is a sectional view taken along ■-■ in FIG. This is an enlarged detailed view of the ■ part in Figure 1. FIG. 4 is an explanatory diagram of an air supply/exhaust duct device according to the prior art. 1... Exhaust duct, 2... Air supply duct, 3... Pool embedded duct, 4... Reactor building outer wall, 5... Dryer separator pool, 6... Reactor well, 7
... Spent fuel pool, 8... Overhead crane, 9.
...Crane girder, 11...Crane girder, 12...
・Rail for overhead crane, 13...Plate, 14・
・・Air supply port, 15・・Crane gutter support stand, 16・
··shutter. 21...Exhaust duct, 22...Air supply duct.
Claims (1)
ト装置において、上記天井クレーンのクレーンガータの
鉄骨構造物を板状部材で覆つて風道を構成し、かつ、上
記の風道に給気用の開口を設けたことを特徴とする原子
炉運転階の給排気ダクト装置。1. In a supply/exhaust duct system for a reactor operation floor equipped with an overhead crane, the steel structure of the crane gutter of the overhead crane is covered with a plate-like member to form a wind passage, and the air passage is supplied with air to the air passage. A supply/exhaust duct device for a nuclear reactor operating floor characterized by having an opening for air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60119735A JPS61278794A (en) | 1985-06-04 | 1985-06-04 | Supply and exhaust duct equipment on the reactor operating floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60119735A JPS61278794A (en) | 1985-06-04 | 1985-06-04 | Supply and exhaust duct equipment on the reactor operating floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61278794A true JPS61278794A (en) | 1986-12-09 |
| JPH0575080B2 JPH0575080B2 (en) | 1993-10-19 |
Family
ID=14768829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60119735A Granted JPS61278794A (en) | 1985-06-04 | 1985-06-04 | Supply and exhaust duct equipment on the reactor operating floor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61278794A (en) |
-
1985
- 1985-06-04 JP JP60119735A patent/JPS61278794A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0575080B2 (en) | 1993-10-19 |
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