JPH0575080B2 - - Google Patents
Info
- Publication number
- JPH0575080B2 JPH0575080B2 JP60119735A JP11973585A JPH0575080B2 JP H0575080 B2 JPH0575080 B2 JP H0575080B2 JP 60119735 A JP60119735 A JP 60119735A JP 11973585 A JP11973585 A JP 11973585A JP H0575080 B2 JPH0575080 B2 JP H0575080B2
- Authority
- JP
- Japan
- Prior art keywords
- air supply
- crane
- duct
- pool
- floor
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000002915 spent fuel radioactive waste Substances 0.000 description 9
- 238000009423 ventilation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000012857 radioactive material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 206010073306 Exposure to radiation Diseases 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000002285 radioactive 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
Landscapes
- Accessories Of Cameras (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
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、原子炉ウエル６、使用済燃料プール７の壁面
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２
１から排気することにより、運転階の作業環境の
維持をおこなつていたまた、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。
As shown in Figure 4, the conventional ventilation method for the reactor operating floor is to install an air supply duct 2 on the floor above the wall on the side of the dryer/separator pool 5 to supply fresh air to the operating floor. An exhaust duct 3 embedded in the walls of the dryer/separator pool 5, the reactor well 6, and the spent fuel pool 7, and an exhaust duct 2 installed on the wall above the floor on the spent fuel pool side.
The work environment on the operating floor was maintained by exhausting air from the pool.In addition, the above-mentioned embedded duct 3 in the pool wall was installed for the purpose of collecting radioactive materials scattered from the pool. be.
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つて明らかとな
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 by the lines, a method can be considered in which an exhaust duct 1 is provided on the ceiling roof truss 10 and an air supply duct (not shown) is provided 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１
７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 of blocking the exhaust air when large temporary objects are placed on the floor.
There is also a risk that 7 or its hanging objects may collide 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、床上の仮置物によつて換気を妨
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
によつて、作業環境内に放射性物質が滞留しなく
なり、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 was made in view of the above circumstances, and
Air supply and exhaust that can be efficiently supplied from a point near the upper part of the indoor space on the reactor operating floor, and that does not interfere with the overhead crane or prevent ventilation from being obstructed by temporary objects on the floor. The present invention aims to provide a duct device. By improving ventilation, it can be naturally expected that radioactive materials will not accumulate in the working environment and the risk of radiation exposure to workers will be reduced.
上記の目的を達成するため、本発明の装置は、
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。
In order to achieve the above object, the device of the present invention comprises:
In a supply/exhaust duct system for a reactor operating 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 supply/exhaust duct is configured to 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図に
ついて説明する。
Next, one embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG.
第２図は、原子炉運転階を、ドライヤ・セパレ
ータプール５・原子炉ウエル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−断面図であり、
第３図は第１図の部拡大詳細図である。 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. FIG. 1 is a - sectional view of FIG. 2,
FIG. 3 is an enlarged detailed view of a portion of 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エル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つている。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. reactor well 6
and a dryer/separator pool 5 for temporarily storing the dryer/separator in the reactor pressure vessel.
These three pools are fully filled with water during regular inspections. Also on the driving floor,
125 for lifting dryers, separates, etc.
$ Crane 8 is installed. 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、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. Section ' shown in FIG. 1 is symmetrical to section (FIG. 3).
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 crane girder, 12 is the crane rail,
4 is the outer wall of the reactor building, and 15 is a support stand for the 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, on the crane gutter 11,
Round air supply ports 14 are arranged in a row, and fresh air is supplied to the operating floor from the air supply ports 14.
第３図に示す如く、前記の給気口１４には風量
調整用のシヤツタ１６を設置し、多数の給気口１
４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つている。 As shown in FIG. 3, a shutter 16 for adjusting air volume is installed in the air supply port 14, and a large number of air supply ports 1
In order to supply almost the same amount of air from 4 to 4, the degree of opening can be adjusted.
また、給気口１４の形状が丸型となつているた
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。 Furthermore, 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１
１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。 Further, when the present invention is applied, the height of the air supply port 14 of the air supply duct is necessarily adjusted to the height of the gutter 1 of the overhead crane.
1 in height, and is located at a considerable height relative to the floor. 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、原子炉ウエルおよびドラ
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つて著しい向上
となる。(b) As a result of paragraph (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 diffused 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、簡
略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 can be omitted, resulting in simplification and improved economic efficiency.
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
によつ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. This has an excellent practical effect in that there is no risk of ventilation being obstructed by temporary objects, and it greatly contributes to reducing the radiation exposure of 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−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
エル、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……シヤツター、２１……排気ダ
クト、２２……給気ダクト。
1 to 3 show one embodiment of the present invention,
1 is a cross-sectional view taken from FIG. 2, FIG. 2 is a cross-sectional view taken from FIG. 1, and FIG. 3 is an enlarged detailed view of a portion of FIG. 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 base, 16...Shutter, 21...Exhaust duct, 22...Air supply duct.
Claims (1)
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 on 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 supply to the air passage is A supply/exhaust duct device for a nuclear reactor operating floor, characterized by having an opening for use in the operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60119735A JPS61278794A (en) | 1985-06-04 | 1985-06-04 | Airing duct unit for nuclear reactor operation stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60119735A JPS61278794A (en) | 1985-06-04 | 1985-06-04 | Airing duct unit for nuclear reactor operation stage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61278794A JPS61278794A (en) | 1986-12-09 |
| JPH0575080B2 true 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 | Airing duct unit for nuclear reactor operation stage |
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 |
|---|---|
| JPS61278794A (en) | 1986-12-09 |
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