JPS5853880B2 - Compressed air system of nuclear power plant - Google Patents
Compressed air system of nuclear power plantInfo
- Publication number
- JPS5853880B2 JPS5853880B2 JP53141879A JP14187978A JPS5853880B2 JP S5853880 B2 JPS5853880 B2 JP S5853880B2 JP 53141879 A JP53141879 A JP 53141879A JP 14187978 A JP14187978 A JP 14187978A JP S5853880 B2 JPS5853880 B2 JP S5853880B2
- Authority
- JP
- Japan
- Prior art keywords
- compressed air
- air system
- nuclear power
- line
- power plant
- 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
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
-
- 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
- Pipeline Systems (AREA)
Description
【発明の詳細な説明】
本発明は原子力発電プラントに督ける圧縮空気系の改良
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in compressed air systems for nuclear power plants.
原子力発電プラントに釦ける圧縮空気系は、主に空気作
動用バルブや流量制御器に圧縮空気を供給する計装用圧
縮空気系、Ｐ・材の空気移送やフィルタの逆洗に用いら
れる圧縮空気を供給する所内用圧縮空気系等を有してい
るが、原子力発電プラントの運転にとっては、所内用圧
縮空気系と比べ計装用圧縮空気系の方がはるかに重要で
あるため、従来は、この計装用圧縮空気系と所内用圧縮
空気系とは、完全に独立した系統として槽底され、空気
圧縮機や周辺機器等はそれぞれの系統専用のものが配置
されていた。The compressed air system in a nuclear power plant is mainly an instrumentation compressed air system that supplies compressed air to air-operated valves and flow rate controllers, and a compressed air system that supplies compressed air for air transfer of P/materials and backwashing of filters. However, for the operation of a nuclear power plant, the instrumentation compressed air system is much more important than the in-house compressed air system, so conventionally this plan was The indoor compressed air system and the in-house compressed air system were installed at the bottom of the tank as completely independent systems, with air compressors and peripheral equipment dedicated to each system.
しかしながら、このようにそれぞれの系統を完全に独立
したものとし、各系統に専用の空気圧縮機、周辺機器等
を設けることは、全体の空気圧縮機、周辺機器等の設置
台数が増え、設備費用が増大するとともに、保守点検、
運転管理などに要する労力も大きくなる。However, making each system completely independent in this way and installing a dedicated air compressor, peripheral equipment, etc. for each system increases the total number of installed air compressors, peripheral equipment, etc., and increases equipment costs. With the increase in maintenance and inspection,
The effort required for operation management and the like also increases.
また計装用圧縮空気系は、プラントの通常運転停止に影
響を及ぼす機器に圧縮空気を供給するライン（以下ＩＡ
１ラインと称する）と、プラントの通常運転停止に影響
を及ぼさない機器に圧縮空気を供給するライン（以下Ｉ
Ａ２ラインと称する）とを有しているが、従来は、複数
のプラント構成機器が集中して配置されている機器グル
ープ、領域あるいは建屋などを１つの単位として配管し
、その単位ごとに配管された主配管から、それぞれの機
器に分岐配管するという方法が採用されていたため、こ
のＩＡ１ラインとＩＡ２ラインとは分離不可能であった
。In addition, the instrumentation compressed air system is a line (hereinafter referred to as IA
1 line), and a line that supplies compressed air to equipment that does not affect the normal shutdown of the plant (hereinafter referred to as I line).
However, conventionally, equipment groups, areas, or buildings in which multiple plant components are arranged in a concentrated manner are piped as one unit, and piping is performed for each unit. Since the method of branching piping from the main piping to each device was adopted, it was impossible to separate the IA1 line and IA2 line.
そのため、例えばＩＡ２ラインが破断漏洩事故を生じた
場合、ＩＡ１ラインも機能を失い、終局的には原子力発
電ブランドの運転出力低下ちるいはプラント停止にまで
影響を及ぼすことがある。Therefore, for example, if a rupture leakage accident occurs in the IA2 line, the IA1 line will also lose its function, which may ultimately affect the reduction in the operating output of the nuclear power generation brand or even the shutdown of the plant.
本発明はこのような点に鑑みてなされたものであり、計
装用圧縮空気系と所内用圧縮空気系との空気圧縮機を共
用化することにより、空気圧縮機の総台数を減少させ、
設備費用の減少化、運転制御の簡素化、保守点検性の容
易化を図ることのできる原子力発電プラントの圧縮空気
系を提供することを目的とする。The present invention has been made in view of these points, and by sharing the air compressor for the instrumentation compressed air system and the in-house compressed air system, the total number of air compressors can be reduced.
The object of the present invention is to provide a compressed air system for a nuclear power plant that can reduce equipment costs, simplify operation control, and facilitate maintenance and inspection.
また本発明の他の目的は、計装用圧縮空気系のうちＩＡ
１ラインとＩＡ２ラインとを系統的に分離可能とするこ
とにより、圧縮空気系の運転に関する信頼性を増すとと
もに、原子力発電プラントの運転稼働率を向上させるこ
とのできる原子力発電プラントの圧縮空気系を提供する
ことにある。Another object of the present invention is to
By making it possible to systematically separate the 1st line and the IA2 line, the compressed air system of a nuclear power plant can be improved, increasing the reliability of the operation of the compressed air system and improving the operational availability of the nuclear power plant. It is about providing.
以下図面を参照して本発明の一実施例について説明する
。An embodiment of the present invention will be described below with reference to the drawings.
図面は本発明による原子力発電プラントの圧縮空気系を
示す系統図である。The drawing is a system diagram showing a compressed air system of a nuclear power plant according to the present invention.
図にかいて符号１１は空気圧縮機であり、本実施例にか
いては全負荷の５０％容量の空気圧縮機１１を３台並列
に配設し、１台は予備の空気圧縮機とされている。In the figure, reference numeral 11 is an air compressor, and in this embodiment, three air compressors 11 with a capacity of 50% of the full load are arranged in parallel, and one is used as a backup air compressor. ing.
この３台の空気圧縮機１１は、すべての空気圧縮機１１
の下流側配管に接続される配管１２により１組の空気圧
縮機として１とめられ、この１組の空気圧縮機は、並設
された全負荷の５０条の容量を有する２台の空気貯槽１
３に配管接続されている。These three air compressors 11 are all air compressors 11
A set of air compressors is connected by a pipe 12 connected to the downstream pipe of the air compressor, and this set of air compressors consists of two air storage tanks 1 having a capacity of 50 full loads installed in parallel.
3 is connected to the piping.
この２台の空気貯槽１３も、それぞれの空気貯槽１３の
下流側配管に接続される配管１４により１組の空気貯槽
としてまとめられている。These two air storage tanks 13 are also combined into one set of air storage tanks by piping 14 connected to the downstream piping of each air storage tank 13.
そしてこの１組の空気貯槽は、計装用圧縮空気系１５と
所内用圧縮空気系１６とにそれぞれ配管接続されている
。This set of air storage tanks is connected to an instrumentation compressed air system 15 and an in-house compressed air system 16 through piping, respectively.
計装用圧縮空気系１５には、計装用として使用する比較
的良質な乾燥圧縮空気を供給するためフィルタ１７釦よ
びドライヤ１８が直列に配設されている。A filter 17 button and a dryer 18 are arranged in series in the instrumentation compressed air system 15 in order to supply relatively high quality dry compressed air used for instrumentation.
また計装用圧縮空気系１５はＩＡ、ライン（プラントの
通常運転停止に影響を及ぼす機器に圧縮空気を供給する
ライン）１９とＩＡ２ライン（プラントの通常運転停止
に影響を及ぼさない機器に圧縮空気を供給するライン）
２０とを有し、それぞれの機器に対し配管接続されてい
る。In addition, the instrumentation compressed air system 15 includes the IA line (line that supplies compressed air to equipment that affects the normal shutdown of the plant) and the IA2 line (line that supplies compressed air to equipment that does not affect the normal shutdown of the plant). supply line)
20, and is connected to each device via piping.
そしてＩＡ１ライン１９から分岐する■Ａ２ライン２０
の分岐管には止め弁２１が配設され、ＩＡ１ライン１９
とＩＡ２ライン２０とが分離可能とされている。■A2 line 20 branches from IA1 line 19
A stop valve 21 is installed in the branch pipe of the IA1 line 19.
and the IA2 line 20 can be separated.
これらの計装用圧縮空気系１５と所内用圧縮空気系１６
は、タービン建屋２２から原子炉建屋２３内さらには原
子炉格納容器２４内に配設されている。These instrumentation compressed air system 15 and office compressed air system 16
are arranged from the turbine building 22 to the reactor building 23 and further inside the reactor containment vessel 24.
また空気貯槽１３には圧力計２５が取り付けられ、この
圧力計２５からの圧力信号により弁の開閉動作を行う止
め弁２６が、所内用圧縮空気系１６の途中に配設されて
いる。A pressure gauge 25 is attached to the air storage tank 13, and a stop valve 26 that opens and closes the valve based on the pressure signal from the pressure gauge 25 is disposed in the middle of the compressed air system 16.
また空気貯槽１３の下流側に設けられた配管１４には、
さらに、空気圧縮機と空気貯槽とからなる隣接ユニット
（図示せず）に接続する連絡管２７が連結されている。In addition, in the piping 14 provided on the downstream side of the air storage tank 13,
Furthermore, a communication pipe 27 is connected to an adjacent unit (not shown) consisting of an air compressor and an air storage tank.
このように隣接ユニットに接続させることにより、例え
ば図に示した空気圧縮機１１と空気貯槽１３のユニット
が電源故障などのように稼働しなくなった場合にでも、
隣接ユニットから必要女圧縮空気を補給することができ
る。By connecting to adjacent units in this way, even if the unit of air compressor 11 and air storage tank 13 shown in the figure stops operating due to a power failure, etc.
Necessary compressed air can be supplied from adjacent units.
このような構成からなる本発明による原子力発電プラン
トの圧縮空気系の作用ならびに効果について説明する。The operation and effects of the compressed air system of the nuclear power plant according to the present invention having such a configuration will be explained.
まず共用化された空気圧縮機１１から吐出された圧縮空
気（通常約７ ｋｇ／ｃｒｉｉ ）は、脈動を防ぎ、ま
た空気圧縮機１１のすべてが故障したときも一定期間必
要な圧力の空気を保持するために空気貯槽１３に送り込
まれる。First, the compressed air (usually about 7 kg/crii) discharged from the shared air compressor 11 prevents pulsation and maintains the necessary pressure for a certain period of time even if all the air compressors 11 fail. The air is sent to the air storage tank 13 for this purpose.
空気貯槽１３から圧縮空気は、それぞれ計装用圧縮空気
系１５と所内用圧縮空気系１６とに分れて供給される。Compressed air is supplied from the air storage tank 13 to an instrumentation compressed air system 15 and an in-house compressed air system 16, respectively.
計装用圧縮空気系１５にかいては、フィルタ１７、
ドライヤ１８を通過することにより良質な乾燥空気とな
り、ＩＡ１ライン１９と■Ａ２ライン２０に分れてそれ
ぞれの機器に供給される。Regarding the instrumentation compressed air system 15, a filter 17,
By passing through the dryer 18, the air becomes high-quality dry air, which is divided into an IA1 line 19 and an A2 line 20 and supplied to each device.
また所内用圧縮空気系１６にかいては、比較的湿った圧
縮空気が原子力発電プラントの必要な個所に供給される
。Furthermore, the in-house compressed air system 16 supplies relatively humid compressed air to necessary locations in the nuclear power plant.
このような圧縮空気系の運転中にかいて、プラントの通
常運転停止に影響を及ぼさない機器や、それらの機器へ
の空気供給配管に漏洩事故などが発生した場合には、Ｉ
Ａ２ライン２０に配設されている止め弁２１を閉じ、Ｉ
Ａ１ライン１９と分離してＩＡ、ライン１９はそのまま
運転可能とし、プラント通常運転停止に影響を及ぼさな
いようにする。During the operation of such a compressed air system, if a leakage accident occurs in equipment that does not affect the normal operation of the plant or in the air supply piping to those equipment, the I
Close the stop valve 21 installed in the A2 line 20, and
Separated from the A1 line 19, the IA line 19 can be operated as is, so as not to affect the normal shutdown of the plant.
また空気貯槽１３に取り付けられた圧力計２５は、空気
圧縮機１１の負荷、無負荷運転の制御を行うと共に、空
気貯槽１３内の圧力が低下した場合、所内用圧縮空気系
１６に配設されている止め弁２６を閉とする圧力信号を
出す。In addition, a pressure gauge 25 attached to the air storage tank 13 controls the load and no-load operation of the air compressor 11, and when the pressure in the air storage tank 13 decreases, it is installed in the compressed air system 16. A pressure signal is issued to close the stop valve 26.
したがって、例えば所内用圧縮空気系１６に釦いて漏洩
事故などが発生しても、空気貯槽１３内の圧力低信号に
より止め弁２６が閉となり、計装用圧縮空気系１５を優
先的に運転することができる。Therefore, even if, for example, a leakage accident occurs due to a button being pressed in the office compressed air system 16, the stop valve 26 will close due to the low pressure signal in the air storage tank 13, and the instrumentation compressed air system 15 will be operated preferentially. Can be done.
このように本発明によれば、原子力発電プラント内に設
置された空気圧縮機転よび空気貯槽などの周辺機器を共
用することができるので、空気圧縮機や周辺機器の設置
台数を減らすことができる。As described above, according to the present invention, peripheral equipment such as an air compressor and an air storage tank installed in a nuclear power plant can be shared, so the number of installed air compressors and peripheral equipment can be reduced.
したがって設備費用の低減化、保守点検の容易化に効果
があるとともに、圧縮空気系全体の運転制御釦よび管理
が容易となる。Therefore, it is effective in reducing equipment costs and facilitating maintenance and inspection, and also facilitates operation control buttons and management of the entire compressed air system.
また計装用圧縮空気系のＩＡ□ラインとＩＡ２ラインと
を分離可能としたため、圧縮空気系の運転についての信
頼性が向上するとともに、原子力発電プラントの運転稼
働率を向上させることができる。Furthermore, since the IA□ line and IA2 line of the instrumentation compressed air system can be separated, the reliability of the operation of the compressed air system is improved, and the operation availability of the nuclear power plant can be improved.
図は本発明による原子力発電プラントの圧縮空気系を示
す系統図である。
１１・・・空気圧縮機、１３・・・空気貯槽、１５・・
・計装用圧縮空気系、１６・・・所内用圧縮空気系、１
９・・・ＩＡ１ライン、２０・・・■Ａ２ライン、２１
・・・止め弁、２４・・・原子炉格納容器。The figure is a system diagram showing a compressed air system of a nuclear power plant according to the present invention. 11... Air compressor, 13... Air storage tank, 15...
・Instrumentation compressed air system, 16... In-house compressed air system, 1
9...IA1 line, 20...■A2 line, 21
...Stop valve, 24...Reactor containment vessel.
Claims (1)
子力発電プラントの圧縮空気系に耘いて、前記計装用圧
縮空気系と所内用圧縮空気系とはそれぞれ空気圧縮機お
よび空気貯槽を共用してかり、前記計装用圧縮空気系は
、プラントの通常運転停止に影響を及ぼす機器への圧縮
空気供給ラインとプラントの通常運転停止に影響を及ぼ
さない機器への圧縮空気供給ラインとを有し、前記プラ
ントの通常運転停止に影響を及ぼさない機器への圧縮空
気供給ラインには止め弁が配設されて前記プラントの通
常運転停止に影響を及ぼす機器への圧縮空気供給ライン
と分離可能にされているとともに、前記所内用圧縮空気
系には、前記空気貯槽内の圧力信号による閉じる止め弁
が配設されていることを特徴とする原子力発電プラント
の圧縮空気系。1. Regarding the compressed air system of a nuclear power plant having an instrumentation compressed air system and an in-house compressed air system, the instrumentation compressed air system and the in-house compressed air system share an air compressor and an air storage tank, respectively. The instrumentation compressed air system has a compressed air supply line to equipment that affects the normal operation shutdown of the plant and a compressed air supply line to equipment that does not affect the normal operation shutdown of the plant, A stop valve is installed in the compressed air supply line to equipment that does not affect the normal operation shutdown of the plant, so that it can be separated from the compressed air supply line to the equipment that affects the normal operation shutdown of the plant. A compressed air system for a nuclear power plant, characterized in that the in-house compressed air system is provided with a stop valve that is closed by a pressure signal in the air storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53141879A JPS5853880B2 (en) | 1978-11-17 | 1978-11-17 | Compressed air system of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53141879A JPS5853880B2 (en) | 1978-11-17 | 1978-11-17 | Compressed air system of nuclear power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5567696A JPS5567696A (en) | 1980-05-21 |
| JPS5853880B2 true JPS5853880B2 (en) | 1983-12-01 |
Family
ID=15302279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53141879A Expired JPS5853880B2 (en) | 1978-11-17 | 1978-11-17 | Compressed air system of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5853880B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57142585A (en) * | 1981-02-27 | 1982-09-03 | Tokyo Shibaura Electric Co | Gas supply system for driving safety valve of nuclear power generation plant |
| JP6586894B2 (en) * | 2016-01-20 | 2019-10-09 | 中国電力株式会社 | Compressed air blow structure for reactor containment leak rate inspection |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5360481A (en) * | 1976-11-10 | 1978-05-31 | Hitachi Ltd | Innert gas feeding equipmen |
| JPS53141879A (en) * | 1977-05-16 | 1978-12-11 | Agency Of Ind Science & Technol | Moving direction controller of moving body |
-
1978
- 1978-11-17 JP JP53141879A patent/JPS5853880B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5567696A (en) | 1980-05-21 |
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