JPS59193396A - Shielding plug - Google Patents

Shielding plug

Info

Publication number
JPS59193396A
JPS59193396A JP58069035A JP6903583A JPS59193396A JP S59193396 A JPS59193396 A JP S59193396A JP 58069035 A JP58069035 A JP 58069035A JP 6903583 A JP6903583 A JP 6903583A JP S59193396 A JPS59193396 A JP S59193396A
Authority
JP
Japan
Prior art keywords
plug
shielding plug
cooling
shielding
reactor
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.)
Pending
Application number
JP58069035A
Other languages
Japanese (ja)
Inventor
正人 進藤
庄司 孝一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP58069035A priority Critical patent/JPS59193396A/en
Publication of JPS59193396A publication Critical patent/JPS59193396A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Landscapes

  • Closures For Containers (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】 [発明の技術分野] 本発明は高速増殖炉の原子炉容器の上端開口部をX($
′iJる遮蔽プラグに関する。
[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a fast breeder reactor with an upper end opening of a nuclear reactor vessel
Regarding the shielding plug.

[発明の挾14; rl(I 1llr B1 トソ(
7) 問題貞1一般(・二高速増殖炉C′は、原子炉内
で発生づる放則線、熱〜′の)席蔽ib J、び冷却)
Δどし−C使用されるす1〜リウノ\の外気との接触を
防止り゛るため、原子炉容器の1端間11部に近11蔽
プラグが配設され−C−いる。
[The frame of invention 14; rl(I 1llr B1 toso(
7) Problem 1 General (2 Fast breeder reactor C' is a radiation line generated in the reactor, heat~') Sealing ib J, and cooling)
In order to prevent the reactor vessel from coming into contact with the outside air, a shielding plug is installed between one end of the reactor vessel.

ぞしく、従来この遮蔽プラグには、11、(蔽プラグを
イM成りる主要強度部イオを低温に紐持するため、また
各種電気1111品等を備えノー制御棒駆動(幾(11
1の据(=Jけ而Cある上板の表面篇)亀を一定基rj
(値以上に−づるため+!U蔽プラグを(14成りる主
要強瓜部vJ’−F部に冷却層が配設されCおり、従っ
てこの遮蔽プラグは非7iiに入掛かりなものどなっく
いる1゜すな4つら、従来の遮蔽プラグは冷lJj層を
併iえ(いるため、での輔])向長さが非°畠にi:=
 < ’、tす、また、この冷却層のための冷lJI設
備および配?スを必要どりるため、これに(りJlli
 シーc原子炉げ屋が人ε\くなるという問題がある。
Conventionally, this shielding plug has been equipped with 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, etc., of various electrical components, etc., in order to keep the main strength part 2, which constitutes the shield plug, at a low temperature.
1 of 1 (= the surface of the upper board) turtle is a certain base rj
(To exceed the value, +!U shielding plug is installed.) (A cooling layer is provided in the 14-piece main part vJ'-F, so this shielding plug is not a non-7ii entry type.) The conventional shielding plug has a cold lJj layer and the length in the direction is not i:=
<',t Also, what is the cold lJI equipment and arrangement for this cooling layer? In order to get the required
There is a problem that C-C reactor enthusiasts become people ε\.

ざらに、この冷却層は多数の(1へ成物品にJ、リイ1
η成されかつ複筒な形状をしC8−,3す、シール部も
非常に多く、この結末、シール材古のメンデナンス時の
作業性が悪く、この作業に多大な時間を必要とし、原子
炉の稼働率を低下させるという問題がある。
Roughly speaking, this cooling layer has a large number of
C8-,3 has a double-tube shape and has a large number of sealing parts, which results in poor workability during maintenance of old sealing material and a large amount of time required for this work. There is a problem that the operating rate of the system is reduced.

[発明の[1的1 本発明はかかる従来の事情に対処しでなされたものて゛
、遮蔽プラグ上面を簡易な冷却装置により冷却し、従来
遮蔽ブ゛ラグ内に配設される冷却h’jiを除去し、遮
蔽プラグの構造を単純化するとともにメンデヅンス時に
お(、プる作業性の向上された遮蔽プラグを提供しよう
とするb a)t−ある。
[Object 1 of the Invention] The present invention has been made in order to deal with such conventional circumstances. It is an object of the present invention to provide a shielding plug which eliminates the problem, simplifies the structure of the shielding plug, and improves workability during maintenance.

[ブト明の概要] ”J−’cKわら本発明は、炉心を収容する原子炉容器
のト端開ロ部を)ぶ蔽する遮蔽プラグと、この遮蔽プラ
グ−にに立設され前記炉心内の反応度を制御する複数の
制(a11棒駆動)幾構と、これらの制御棒駆動機構の
間にかつ前記j卑蔽プラグ士面に配設され、前記遮蔽プ
ラグ上ulを冷却する冷fJ1装置とからなることを特
徴とで−る遮蔽プラグである。
[Summary of Butomei] "J-'cK Wara The present invention includes a shielding plug that covers the top end opening of a reactor vessel that houses a reactor core, and a plurality of controls (a11 rod drive) for controlling the reactivity of A shielding plug characterized by comprising a device.

[発明の実/101例1 以FA、発明の汀線4′図面に示−11一実施例につい
−U 1iii明り〈0゜ 第1図(31、本発明の一実施例のj!jL jVゾラ
グを示すもので、この遮蔽プラグはシ;(1炉容器1上
面(こ配設される固定プラク2と、Jの固定プラグ2に
穿設されるI?1通荘内に挿入支持される大回転プラグ
3と、この大回転プラク3に穿設(\れる貫通孔内に回
転自イ」lこ1φ人吏持される小回りす、プラク4とか
ら+1木部分が(111成されCいる。
[Acts of the Invention/101 Example 1 Hereinafter, FA, Shoreline of the Invention 4' Shown in the Drawing - 11 Regarding One Embodiment - U 1iii Light <0° Fig. 1 (31, j!jL jV Zorag of an Embodiment of the Invention This shielding plug consists of a fixed plaque 2 installed on the upper surface of the furnace vessel 1, and a large rotary plug inserted and supported in the I?1 hole drilled in the fixed plug 2 of J. 3, and a small turning wheel which is held by a 1φ man in the through hole drilled in this large rotating plaque 3, and a +1 wooden part (111) is formed from the plaque 4.

(しC,これらの固定プラク2、大回転プラク3a′−
3よび小回転プラグ4はそれぞれ−に部からト仮、5 
8  %  J  l’  、 !’)  C、放ni
l 線iU @ イイ\ 6a  、 6b  、 6
C83、l ’C1’熱J+冒b9!体7a 、71)
、−/Cにより(111成されCいる1゜ 固定プラグ2には大回転プラグ3を回lIt、−する大
回転プラク駆動1幾横8が配設され、。した大回転グー
ラグ3には小回転プラク4を回転覆る小回転プラグ駆動
機J7’: 9が配設され乙いる。また、原子炉容器1
1而と固定プラグ2どの間にtユソールヅレー1〜10
が配設され、大回転プラグ3および小回転プラグ4[5
1それぞれ大回転プラグ軸受り11および小回転プラク
軸受(J12により支持されでいる。
(C, these fixed plaques 2, large rotating plaques 3a'-
3 and small rotation plug 4 are respectively
8% Jl',! ') C, arrogance
l line iU @ good @ 6a , 6b , 6
C83,l 'C1' heat J+expansion b9! Body 7a, 71)
, -/C (111) A 1° fixed plug 2 is provided with a large rotation plug drive 1 and 8 for rotating a large rotation plug 3, and a small rotation plaque 4 is installed on the large rotation plug 3 A small rotating plug drive machine J7': 9 is installed to rotate the reactor vessel 1.
1 to 10 between the fixing plug and the fixing plug.
is arranged, a large rotation plug 3 and a small rotation plug 4 [5
1 are supported by a large rotation plug bearing 11 and a small rotation plug bearing (J12), respectively.

また、固定プラグ2にばシュー1〜型燃料出し入れ拡1
3が配設され、小回転プラグ4には炉心上部機構14J
3よび制御棒駆動]幾4M 15が配設され−Cいる。
In addition, the fixed plug 2 has a shoe 1-type fuel inlet/outlet expansion 1.
3 is arranged, and the small rotating plug 4 is equipped with a core upper mechanism 14J.
3 and control rod drive] 4M 15 are installed.

J′なりち、小回転プラグ4上面には、第2図iDよび
第3図に示すよう)こ、炉心内の反応度を制御する多数
の制御枠駆動(幾4f+; 15が立設されCいる。
On the upper surface of the small rotating plug 4, there are a number of control frame drives (4f+; 15) erected to control the reactivity in the reactor core (as shown in Figures 2D and 3). There is.

ぞして、これらの制御棒駆動(幾tM 15の間には小
回転プラグ4上面を空気により冷却づる冷却−リ−る冷
却装置16が配設されCいる。
A cooling device 16 for cooling the upper surface of the small rotating plug 4 with air is disposed between these control rod drives (15).

この冷却装置′16は小回転プラグ4」−面と一定の間
隔をおいて小回転プラグ4十に載置される冷却用ダク1
〜17と、この冷IA用ダク1〜17に図示しない送風
(幾からの冷却空気を供給するダク1〜」]部配銘18
と、冷却用ダク1〜17の下面に配設され、冷ム[j空
気を小回転プラグ4上面に噴出するノズル19どから構
成されている。そして、冷却用ダク1〜17 i、、I
第2図に示りJ、うに、制御棒駆動機構15の間隙をぬ
つ(形成されている。
This cooling device '16 is a cooling duct 1 placed on the small rotating plug 40 at a constant distance from the surface of the small rotating plug 4''.
~17, and an air blower (not shown in the drawings) for the cold IA ducts 1~17 (Duc 1~ that supplies cooling air from several sources)] Part numbering 18
The nozzle 19 is disposed on the lower surface of the cooling ducts 1 to 17 and is configured to eject cold air onto the upper surface of the small rotating plug 4. And cooling ducts 1 to 17 i,,I
As shown in FIG. 2, the gap between the control rod drive mechanism 15 is removed.

−リーなわら、一般に遮蔽プラグにII[!設される各
種機器のうり、最し温度的に厳しい条イ!1にあるのは
小回転ジーノブ4に配設される制御捧駆動別4S’t 
15C′あり、鴻ffi&プラグ上面の訂容温(、H%
 iJ、これにJ、り決定され、この実施例(゛は小回
転−グラブ4十面の温度制限(1((が70 ’Cに設
定され(いる。
- Generally speaking, II [! Of all the equipment that will be installed, this is the most temperature-severe area! 1 has a control drive separate 4S't installed in the small rotation gee knob 4.
There is 15C', the correction temperature on the top surface of Kofufi & plug (, H%
iJ, and J are determined, and in this example (' is the small rotation-temperature limit for the 40 sides of the glove (1) is set at 70'C.

しかし−(、以上のj、うに(1う成された遮蔽プラグ
では、原」″−力I運転時原子炉内で光11.シた熱の
一部が小回転プラグ4内を伝わり小回転プラク4−11
面(こ達づ−るが、図示しない送j・];1機に、」、
リタク]〜上部配管′1ε3を・通り冷却用タクト17
内に流入し、例えば40℃の冷7JI空気がノズル15
)から小回転プラク4十面に1n出され、この時の吹イ
・」(プ流速を、例えば10秒5 m以上にゴることに
J、り小回転プラグ4を制限淘1豆70℃以下に保つこ
とがCきる。
However, in the shielding plug created above, part of the heat generated by the light 11. during operation of the reactor is transmitted through the small rotation plug 4, causing a small rotation. Plaque 4-11
To one aircraft,
Cooling tact 17 through the upper pipe '1ε3
For example, cold 7JI air of 40°C flows into the nozzle 15.
) from the small rotating plug 40, and at this time the flow velocity should be set to 5 m or more for 10 seconds, for example. C can be kept below.

また以上のようにiM成された遮蔽プラグでは、燃オ′
ミ1交換11.1や各種機器のメンテプンス時笠の原子
炉停止時には、容易にタフ1へ上部配管18および冷却
用グクト17が小回転プラグ4十から取外され、十分な
作業スペースを確保しながIう制御棒駆動機Mi i 
5の交換作業、Oリング交換作業等のη′!t々のイア
1業が行なわれる。
In addition, in the shielding plug made with iM as described above, the combustion
When the reactor is shut down during Mi1 replacement 11.1 or maintenance of various equipment, the upper piping 18 and the cooling gut 17 can be easily removed from the small rotating plug 40 to ensure sufficient work space. Long control rod drive machine Mi
η′ for replacement work of 5, O-ring replacement work, etc. The first works of t are performed.

[発明の効果J 以上)小べたように本発明の遮蔽ブラダによれば、従来
のように遮蔽プラグ内に冷却層を設(Iることなく遮蔽
プラグ上面を冷l、[1装置により冷却J−るようにし
たの(′、遮蔽プラグを非常に簡易なものと覆ることが
でき、これにイ」随して原子炉建屋の縮小J3よび遮蔽
プラグの二1ス1−低減を図ることがC゛ぎる。
[Effects of the Invention J] As mentioned above, according to the shielding bladder of the present invention, the upper surface of the shielding plug can be cooled without providing a cooling layer inside the shielding plug as in the conventional case. - The shielding plug can be covered with a very simple one, and this also makes it possible to reduce the size of the reactor building and reduce the number of shielding plugs. Too C.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例の遮蔽プラグを承り縦断面図
、第2図は第1図の上面図、第3図は第2図のへ−A線
に沿う断面図C゛ある。 2・・・・・・・・・・・固定プラグ 3・・・・・・・・・・・・大回転プラグ4・・・・・
・・・・・・・小回転プラグ5a 、5b 、5c、 
−・・上 板(5a 、 (5+) 、6C・・・放用
線遮蔽体7;+  、  71)  、  −7c  
・・・ 熱)兎 m’i、  f本コ 5) ・・・ 
・・・ ・・・ ・・・ 制 等If  4i !!1
1区任・力 ■逅(か118・・・・・・・・・・・・
ツク1〜上部配管19・・・・・・・・・・・・ノズル 代理人弁理士   須 山 佐 −
FIG. 1 is a longitudinal sectional view of a shielding plug according to an embodiment of the present invention, FIG. 2 is a top view of FIG. 1, and FIG. 3 is a sectional view taken along line A--A in FIG. 2. 2...Fixed plug 3...Large rotation plug 4...
......Small rotation plugs 5a, 5b, 5c,
-...Top plate (5a, (5+), 6C...Radiation shield 7;+, 71), -7c
・・・ fever) rabbit m'i, f book 5) ・・・
・・・ ・・・ ・・・ If 4i! ! 1
1st Ward Responsibility/Power ■Meeting (Ka118・・・・・・・・・・・・
Tsuku 1 ~ Upper piping 19... Nozzle agent Patent attorney Suyama Sa -

Claims (2)

【特許請求の範囲】[Claims] (1)炉心を収容する原子炉容器の上端開口部を遮蔽す
る遮蔽プラグと、この遮蔽プラグ上に立設され前記炉心
内の反応度を制御する複数の制御棒駆動機構と、前記遮
蔽プラグ上面の前記制御棒駆動機構の間に配設され前記
遮蔽プラグ上面を冷却する冷却装置どを備えたことを特
徴ど一す−る遮蔽プラグ。
(1) A shielding plug that shields the upper end opening of the reactor vessel that houses the reactor core, a plurality of control rod drive mechanisms that are erected on the shielding plug and that control the reactivity in the core, and the upper surface of the shielding plug. A shielding plug characterized in that it is provided with a cooling device disposed between the control rod drive mechanism and cooling the upper surface of the shielding plug.
(2)冷却装置は遮蔽プラグ上面と一定の間隔をおいC
前記遮蔽プラグ上に載置される冷却用ダクトと、この冷
却用タフi・に冷却空気を供給す”る空気供給装置と、
前記冷却用ダク1への底部に配設され前記冷却空気を前
記遮蔽プラグ」二面へ噴出−リーるノズルとからなるこ
とを特徴とする特許請求の範囲第1項記載の遮蔽プラグ
(2) The cooling device should be spaced a certain distance from the top surface of the shielding plug.
a cooling duct placed on the shielding plug; an air supply device that supplies cooling air to the cooling duct;
2. The shielding plug according to claim 1, further comprising a nozzle disposed at the bottom of the cooling duct 1 to eject the cooling air to two sides of the shielding plug.
JP58069035A 1983-04-19 1983-04-19 Shielding plug Pending JPS59193396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58069035A JPS59193396A (en) 1983-04-19 1983-04-19 Shielding plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58069035A JPS59193396A (en) 1983-04-19 1983-04-19 Shielding plug

Publications (1)

Publication Number Publication Date
JPS59193396A true JPS59193396A (en) 1984-11-01

Family

ID=13390919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58069035A Pending JPS59193396A (en) 1983-04-19 1983-04-19 Shielding plug

Country Status (1)

Country Link
JP (1) JPS59193396A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6892538B2 (en) 2001-11-13 2005-05-17 Hyundai Motor Company Apparatus for controlling exhaust attack angle for a variable turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6892538B2 (en) 2001-11-13 2005-05-17 Hyundai Motor Company Apparatus for controlling exhaust attack angle for a variable turbine

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