JPS61239195A - Exchanger for driving mechanism of control rod - Google Patents
Exchanger for driving mechanism of control rodInfo
- Publication number
- JPS61239195A JPS61239195A JP60080185A JP8018585A JPS61239195A JP S61239195 A JPS61239195 A JP S61239195A JP 60080185 A JP60080185 A JP 60080185A JP 8018585 A JP8018585 A JP 8018585A JP S61239195 A JPS61239195 A JP S61239195A
- Authority
- JP
- Japan
- Prior art keywords
- control rod
- drive mechanism
- rod drive
- crd
- section
- 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
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
- Vehicle Body Suspensions (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Threshing Machine Elements (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〕
本発明は制御棒駆動機構交換装置、さらに詳細には、原
子炉定期検査に際し、原子炉圧力容器と一体に取り付け
られている制御棒駆動機構ノ・ウジングに対する制御棒
駆動機構の着脱・搬送作業をおこなう、制御棒駆動機構
交換装置の改良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 control rod drive mechanism replacement device, and more particularly, to a control rod drive mechanism replacement device that is installed integrally with a nuclear reactor pressure vessel during periodic nuclear reactor inspections. - This relates to improvement of a control rod drive mechanism exchange device that performs the work of attaching, detaching, and transporting the control rod drive mechanism to the housing.
制御棒駆動機構（以下、ＣＲＤと略称する）の交換作業
は、原子炉定期検査時におこなわれる。The control rod drive mechanism (hereinafter abbreviated as CRD) is replaced during regular reactor inspections.
このＣＲＤの交換作業は、高放射線量率の雰囲気下でお
こなわれるため、作業者の放射線被曝低減対策は不可欠
の条件である。Since this CRD replacement work is performed in an atmosphere with a high radiation dose rate, it is essential to take measures to reduce radiation exposure of workers.
ここで、従来形ＣＲＤ交換装置の構成を第８図にもとづ
いて説明する。Here, the configuration of the conventional CRD exchange device will be explained based on FIG. 8.
第８図において、１は原子炉圧力容器を示し、原子炉圧
力容器１は、原子炉格納容器２内において、ペデスタル
３上に据え付けられている。原子炉圧力容器１の下部に
は、ＣＲＤハウジング４および中性子計測用ハウジング
５が突出して設けられておシ、このＣＲＤハウジング４
および中性子計測用ハウジング５も原子炉圧力容器１の
一部を構成シテいる。６はＣＲ，Ｄハウジング４内に収
納されたＣＡＤであって、ＣＡＤ６は、通常８本のボル
トでハウジング４に取シ付けられておシ、現行において
、上記したＣＡＤ６は、５年に一度の割合で保守・点検
が義務づけられている。In FIG. 8, 1 indicates a reactor pressure vessel, and the reactor pressure vessel 1 is installed on a pedestal 3 within a reactor containment vessel 2. A CRD housing 4 and a neutron measurement housing 5 are provided in a protruding manner at the bottom of the reactor pressure vessel 1.
The neutron measurement housing 5 also constitutes a part of the reactor pressure vessel 1. 6 is a CAD housed in the CR, D housing 4, and the CAD 6 is normally attached to the housing 4 with eight bolts. Maintenance and inspection are required based on the percentage.
ＣＡＤ６の保守・点検に際し、ＣＲ，Ｄノ・ウジング４
に対するＣＡＤ６の着脱・搬送作業を自動的に遠隔操作
する従来形ＣＲＤ交換装置が第８図に符号８で総称され
ており、ＣＲＤ交換装置８は、原子炉圧力容器１の下方
に位置して、ペデスタル空間１７内に配設されている。When maintaining and inspecting CAD6, CR, D-Using 4
A conventional CRD exchange device that automatically and remotely controls the attachment/detachment/transfer work of the CAD 6 to the reactor is collectively designated by the reference numeral 8 in FIG. 8, and the CRD exchange device 8 is located below the reactor pressure vessel 1. It is arranged within the pedestal space 17.
また、ＣＲり搬出入口１８が、ペデスタル３に設けられ
ている。ペデスタル空間１７部分に位置して、ペデスタ
ル３の内周壁には、ブラケット１９が突出して設けられ
ており、ブラケット１９上に環状レール２０が敷設され
ている。しかして、符号８で総称したＣＲ，Ｄ交換装置
は、上記環状レール２０上を水平 。Further, a CR loading/unloading entrance 18 is provided in the pedestal 3. A bracket 19 is provided protruding from the inner circumferential wall of the pedestal 3, located in the pedestal space 17, and an annular rail 20 is laid on the bracket 19. Therefore, the CR and D exchange devices collectively designated by reference numeral 8 run horizontally on the annular rail 20.
に旋回移動するものであって、従来、ＣＲり交換−装置
８は、後述するＣＲＤ着脱部９とＣＲＤ搬送部１２とが
それぞれ独立して設けられている。Conventionally, the CR replacement device 8 is provided with a CRD attachment/detachment section 9 and a CRD conveyance section 12, each of which will be described later, independently.
ＣＲ，Ｄ着脱部９は、旋回移動台車７ＩＣ設けられたレ
ール上を走行する走行台車１０と、ＣＲＤ取付ボルトの
取付・取外しならびに制御棒とＣＡＤ６とのカップリン
グ・アン男ツブリング、さらＫはＣＲＤハウジング４お
よびＯＲ，Ｄ６かちのドレン処理機能を有するＣＲＤ着
脱ヘッド１１とによ輌 って構成されている
。また、ＣＲＤ搬送部１２は、旋回移動台車７ＩＩＣ設
けられたレール上を走行する“走行台車１３と、マスト
１４と、マスト１４を直立・横転駆動するマスト駆動機
構１５と、ＯＲ，Ｄハウジング４に対するＣＡＤ６の引
抜・挿入動作をおこなうマスト収納タイプのＣＡＤカー
ト１６とによって構成されている。The CR, D attachment/detachment section 9 is used to attach and remove a running cart 10 that runs on a rail provided with a rotating movable cart 7IC, and a CRD mounting bolt, as well as a coupling between a control rod and a CAD 6, and K is a CRD. It is composed of a housing 4 and a CRD attachment/detachment head 11 having a drain processing function of OR and D6. The CRD conveying section 12 also includes a traveling truck 13 that runs on a rail provided with a turning movable truck 7IIC, a mast 14, a mast drive mechanism 15 that drives the mast 14 upright or horizontally, and an OR and D housing 4. It is comprised of a mast storage type CAD cart 16 that performs operations for pulling out and inserting CAD 6.
従来形ＣＲＤ交換装置７の構成は以上のごときであり、
上記したＣＲＤ交換装置７によるＣＡＤ６の交換作業は
、ＣＲＤ着脱部９とＣＲＤ搬送部１２との連けい動作に
よっておこなう。The configuration of the conventional CRD exchange device 7 is as described above.
The replacement work of the CAD 6 by the above-mentioned CRD replacement device 7 is performed by the continuous operation of the CRD attachment/detachment section 9 and the CRD transport section 12.
すなわち、ＣＲＤ着脱部９のヘッダー１１によってＣＲ
Ｄハウジング４から取シ外されたＣＡＤ６は、ＣＲＤ搬
送部１２のＣＲＤカート１６に引き渡され、ＣＡＤ６を
受は取ったＣＲ，Ｄ搬送部１２は、その後、マスト駆動
機構１５の駆動にょシマスト１４を水平に横転させるこ
とにより、ＣＲ，Ｄ搬出人口１８からＣＡＤ６を取り出
し、搬出入口１１−ら取シ出された〇Ｒ，Ｄ６はその後
、保守・点検作業工程へと移される。That is, the header 11 of the CRD attachment/detachment section 9
The CAD 6 removed from the D housing 4 is delivered to the CRD cart 16 of the CRD transport unit 12, and the CR and D transport unit 12 that received the CAD 6 then drives the mast 14 of the mast drive mechanism 15. By horizontally rolling it over, the CAD 6 is taken out from the CR, D carry-out port 18, and the 〇R, D6 taken out from the carrying-out entrance 11- is then transferred to the maintenance/inspection work process.
程を経ておこなわれる。It is done in stages.
従来形ＣＲＩ）交換装置８によっておこなわれるＣＡＤ
６の交換作業は以上のとおシであるが、従来は、ＣＲＤ
着脱部９とＣＲＤ搬送部１２とをそれぞれ独立に構成し
、上記ＣＲり着脱部９とＣＲＤ搬送部１２との連けい動
作によってＣＡＤ６の交換をおこなうようにしているた
め、ＣＲ１Ｄ着脱部９とＣＲＤ搬送部１２との間でＣＲ
，Ｄ６を受渡しするに際しては、双方の走行台車１０と
１３との位置決め制御を精度よくおこなわなければなら
ない。また、ＣＲ，Ｄ６の搬出入に先立ち、マスト駆動
機構１５の、駆動によりマスト１４を水平に横転させる
必要があるが、長尺物であるカート収納マスト１４の横
転に際しては、ＣＲＤ着脱部９を退避させなければなら
ず、特に、ＣＲＤ６゜６・・・・・・のうち、ペデスタ
ル３に近い外周寄シのＣＲＤ６を交換するに際しては、
マスト１４の横転に先立ってＣＲＤ着脱部９とペデスタ
ル３の壁面に取り付けられている各種機器、配管などが
接触するおそれがあるため、作業員によるペデスタル空
間１７内の目視監視が必要となる。CAD performed by conventional CRI) exchange device 8
The replacement work in step 6 is as described above, but conventionally, CRD
The attachment/detachment section 9 and the CRD conveyance section 12 are each configured independently, and the CAD 6 is exchanged by the linked operation of the CR attachment/detachment section 9 and the CRD conveyance section 12. CR with Section 12
, D6, the positioning control of both traveling carts 10 and 13 must be performed with high precision. Furthermore, prior to loading and unloading the CR, D6, it is necessary to horizontally roll the mast 14 by driving the mast drive mechanism 15, but when the cart storage mast 14, which is a long object, rolls over, the CRD attaching/detaching section 9 must be rotated. In particular, when replacing the CRD 6 near the outer periphery near the pedestal 3 among the CRD 6゜6...
Before the mast 14 overturns, there is a risk that the CRD attachment/detachment section 9 will come into contact with various devices, piping, etc. attached to the wall of the pedestal 3, so visual monitoring of the inside of the pedestal space 17 by a worker is required.
本発明は、上記した従来形ＣＲＤ交換装置に改良を加え
たものであって、その目的とするところは、従来に比べ
て装置の位置決めが大幅に簡便化でき、作業員による目
視監視項目も削減され安全性の高い、しかも装置そのも
のをコンパクト化することのできる、実利性にすぐれた
ＣＲＤ交換装置を提供しようとするものである。The present invention is an improvement on the conventional CRD exchange device described above, and its purpose is to greatly simplify the positioning of the device compared to the conventional method, and to reduce visual monitoring items for workers. The object of the present invention is to provide a highly practical CRD exchanging device that is highly safe and can be made compact.
上記目的を達成するため、本発明は、原子炉圧力容器と
一体に取シ付けられているＣＲＤハウジングに対してＣ
ＲＤの着脱を機械的におこなうＣＲＤ着脱着脱、上記Ｃ
Ｒ，Ｄ着説部との間でＣＢりの受渡しをおこなった後横
転してＣＲＤの搬出入をおこなうＣＢ、Ｄ搬送部とを備
えてなるＣＲＤ交換装置において、上記ＣＲＤ着脱着脱
ＣＢり搬送部とを一体に構成し、かつ、ＣＲＤをＣＢり
着脱部とＣＲＤ搬送部間に受渡しするＣＲＤ支持部およ
びＣＲＤをＣＲＤ支持部に受渡し状態にし、ＣＲＤ着説
部をＣＲＤ搬送部より外側に離脱可能な機構を持ち、Ｃ
ＲＤ着脱着脱昇降動作せしめるリフターをＣＲＤ搬送部
に装着してなることを特徴とするものである。In order to achieve the above object, the present invention provides a CRD housing that is integrally attached to a reactor pressure vessel.
CRD attachment/detachment that mechanically attaches and detaches the RD, above C
In a CRD exchange device comprising a CB and D transport section that transfers the CB to and from the R and D loading sections and then rolls over to carry in and take out the CRD, the above CRD attachment/detachment/detachment CB transfer section is provided. and a CRD support section that transfers the CRD between the CB attachment/detachment section and the CRD conveyance section, and a CRD loading section that can be detached from the CRD conveyance section when the CRD is in a state of being delivered to the CRD support section. It has a mechanism, C
The present invention is characterized in that a lifter for lifting and lowering the RD is attached to the CRD conveying section.
以下、本発明を、第１図〜第７図の一実施例にもとづい
て詳細に説明する。第１図はＣＨＤ着脱搬送部が直立状
態にちる本発明装置の全体構成説明図、第２図はＣＲＤ
着脱搬送部が横転状態にある本発明装置の全体構成図で
ある。Hereinafter, the present invention will be explained in detail based on an embodiment shown in FIGS. 1 to 7. Figure 1 is an explanatory diagram of the overall configuration of the device of the present invention in which the CHD attachment/detachment section is in an upright state, and Figure 2 is an illustration of the CRD.
FIG. 2 is an overall configuration diagram of the apparatus of the present invention in which the attachment/detachment conveyance section is in an overturned state.
第１図および第２図において、第８図に示す従来例と同
一符号は同一部分を示す。In FIGS. 1 and 2, the same reference numerals as in the conventional example shown in FIG. 8 indicate the same parts.
ＣＲＤ６の保守・点検に際し、ＣＲＤハウジング４に対
するＣＲＤ６の着脱・搬送を機械的に操作する本発明の
ＣＲＤ交換装置が第１図および第２図に符号２１で総称
されており、ＣＲＤ交換装置２１は、従来と同様、原子
炉圧力容器１の下方に位置して、ペデスタル空間１７内
に配設されている。また、従来と同様、ペデスタル空間
１７部分に位置して、ペデスタルａの内周壁には、ブラ
ケット１９が突出して設けられており、ブラケット１９
上に環状レール２０が敷設されている。しかして、符号
２１で総称したＣＲＤ交換装置は、上記レール２０上を
水平に旋回移動するものであって、本発明において、Ｃ
ＲＤ交換装置２１は、後述するように、ＣＲ，Ｄ着脱部
とＣＲ，Ｄ搬送部とが一体に構成されている。A CRD replacement device of the present invention that mechanically operates the attachment/detachment/transfer of the CRD 6 to/from the CRD housing 4 during maintenance/inspection of the CRD 6 is collectively designated by the reference numeral 21 in FIGS. 1 and 2, and the CRD replacement device 21 is , is located below the reactor pressure vessel 1 and disposed within the pedestal space 17, as in the past. Further, as in the past, a bracket 19 is provided in the pedestal space 17 portion and protrudes from the inner circumferential wall of the pedestal a.
An annular rail 20 is laid on top. Therefore, the CRD exchanging device, generally designated by the reference numeral 21, is one that pivots horizontally on the rail 20, and in the present invention, the CRD exchanging device is
As will be described later, the RD exchange device 21 has a CR/D attaching/detaching section and a CR/D transport section integrally constructed.
すなわち、本発明において、ＣＲＤ着脱搬送部は、旋回
移動台車７に設けられたレール上を走行する走行台車２
２と、マスト２３と、マスト２３を直立・横転駆動する
マスト駆動機構２４と、ＣＲＤハウジング４に対するＣ
ＲＤ６の引抜・挿入動作をおこなうマスト収納タイプの
ＣＲＤカート２５と、ＣＢり取付ボルトの取付・取外な
らびに制御棒とＣＲＤ６とのカップリング・アンカップ
リング、さらにはＣＲＤハウジング４およびＣＲ，Ｄ６
からのドレン処理機能を有するＣＨＤ着脱ヘッド２６と
によって構成されている。That is, in the present invention, the CRD attachment/detachment conveyance unit is the traveling carriage 2 that runs on the rails provided on the swinging carriage 7.
2, a mast 23, a mast drive mechanism 24 for driving the mast 23 upright and horizontally, and a C for the CRD housing 4.
A mast storage type CRD cart 25 for pulling out and inserting the RD6, installing and removing CB mounting bolts, coupling and uncoupling between the control rod and the CRD6, and the CRD housing 4 and CR, D6.
The CHD attachment/detachment head 26 has a drain processing function.
第３図は本発明装置の要部であるＣＲＤ着脱搬送部の詳
細を示す第１図の部分拡大図で、第３図においては、図
面を見易くするため、マスト２３からＣＲ，Ｄカート２
５を除いた場合を示し、マスト２３にＣＲＤカート２５
を収納した場合を第４図に示す。また、第５図は第４図
の平面図、第６図は第４図のＡ−Ａ断面図、第７図は第
４図のＢ−Ｂ断面図である。FIG. 3 is a partially enlarged view of FIG. 1 showing details of the CRD attachment/detachment section, which is a main part of the apparatus of the present invention.
5 is excluded, and the CRD cart 25 is attached to the mast 23.
Fig. 4 shows the case in which it is stored. 5 is a plan view of FIG. 4, FIG. 6 is a sectional view taken along line AA in FIG. 4, and FIG. 7 is a sectional view taken along line BB in FIG. 4.
第３図ないし第７図において、Ｃ几ＤハウジングにＣＲ
Ｄを取り付けるには、第７図に示すＣＲＤカート２５の
リフター、２７上にＣＲ，Ｄを載置し、リフター２７に
よ、！７、ＣＲＤをマスト２３のＣＲ，Ｄ支持金具２８
の位置にまで上昇させる。In Figures 3 to 7, CR is attached to C housing D.
To attach D, place CR and D on the lifter 27 of the CRD cart 25 shown in FIG. 7. Attach the CRD to the CR and D support fittings 28 of the mast 23.
Raise it to the position of
なお、ＣＲ，Ｄカート２５に装着されているりフタ−２
７は当該り７ター２７に嵌合されている左右一対のスク
リューロッド２９ａおよび２９ｂに正逆方向の回転力を
与えることにより、当該スクリューロッド２９ａ、２９
ｂの軸方向に往復動するよう構成されている。In addition, the lid 2 attached to the CR, D cart 25
7 applies rotational force in the forward and reverse directions to the pair of left and right screw rods 29a and 29b fitted to the 7ter 27, thereby rotating the screw rods 29a, 29.
It is configured to reciprocate in the axial direction of b.
また、リフター２７が昇降する際リンク３２ａまたはリ
ンク３２ｂを押すことによｆｉｃＲＤカート２５に装着
されているＣＲＤ把持金具３３を開閉動作せしめるよう
構成されている。ＣＲＤがＣＲＤ支持金具２８によって
支持される位置に達し、リフター２７が停止したならば
次にＣＲＤ支持金具２８をエアーシリンダ３５により水
千に移動させ、当該支持金具２８によってＣＨＤを支持
する。Further, when the lifter 27 moves up and down, by pushing the link 32a or the link 32b, the CRD gripping fitting 33 mounted on the ficRD cart 25 is opened and closed. When the CRD reaches a position where it is supported by the CRD support fittings 28 and the lifter 27 stops, the CRD support fittings 28 are then moved vertically by the air cylinder 35, and the CHD is supported by the support fittings 28.
上記のようにしてＣＢり支持金具２８によりＣＲＤを支
持したならばリフター２７を下降させマス）２３１Ｃ取
シ付けられているＣＲＤ着脱ヘッド２６をエアーシリン
ダ３６ａ、３８ｂによりＣＲＤの直下に水平移動させる
。なお、ＣＲＤ把持金具３３は、ＣＲＤ着脱ヘッド２６
をＯＲ，Ｄの直下に移動させる際の軸受３１によって押
されて開動作し、ＣＲＤ着脱ヘッド２６を元の位置にも
どすと復帰バネ３４によって閉動作するように構成され
ている。Ｃｆｔ、Ｄ着脱ヘッド２６がＯＲ，Ｄの真下に
移動したならば、再びリフター２７を上昇させ、ＣＲ，
Ｄ着脱ヘッド２６の下部に取シ付けられている昇降パイ
プ３０を押し上げ、ＣＲＤ着脱ヘッド２６上にＣＢ、Ｄ
を載置する。ＣＲＤ着脱へ置に後退させる。その後、リ
フター２７によってＣＡＤ着脱ヘッド２６の昇降パイプ
３０をさらに上昇させ、ＣＲＤハウジングＫＣＲ，Ｄを
挿入し、ＣＲ，Ｄ着脱ヘッド２６に装着されているボル
トレンチ（図示なし）によってＯＲ，Ｄ取付ボルトを締
め、ＣＲＤハウジングに対するＣＲＤの取付作業が完了
する。After the CRD is supported by the CB support fitting 28 as described above, the lifter 27 is lowered and the CRD attachment/detachment head 26 attached to the mass 231C is horizontally moved directly below the CRD by the air cylinders 36a and 38b. Note that the CRD gripping fitting 33 is attached to the CRD attachment/detachment head 26.
When the CRD attachment/detachment head 26 is returned to its original position, it is closed by a return spring 34. Once the Cft, D attachment/detachment head 26 has moved to just below the OR, D, the lifter 27 is raised again, and the CR,
Push up the elevating pipe 30 attached to the lower part of the D attachment/detachment head 26, and place the CB and D on the CRD attachment/detachment head 26.
Place. Move back to CRD installation/removal position. Thereafter, the lifting pipe 30 of the CAD attachment/detachment head 26 is further raised by the lifter 27, the CRD housing KCR, D is inserted, and the OR, D mounting bolts are tightened using a bolt wrench (not shown) attached to the CR, D attachment/detachment head 26 , and the installation work of the CRD to the CRD housing is completed.
ＣＡＤハウジングからＣＦＬＤを敗り外す場合は、ＣＨ
Ｄ着脱ヘッド２６の昇降パイプ３０をＣＲＤカート、２
５のり７ター２７上にセットし、リフター２７を上昇さ
せてパイプ３０を押し上げ、取外、 ｆ″″。、Ｄ
ＥＣ，″′Ｄ″６へｙ ）’ ２６ ｔ ＊ Ｖ ）
ｌ−５ＣＲＤ着脱ヘッド２６のボルトレンチによってＣ
ＲＤ取付ボルトを緩め、ＣＲ，ＤハウジングおよびＣＲ
，Ｄからのドレンを処理した後、リフター２７を下降さ
せる。ＣＲＤがＣＡＤ支持金具２８′ の位
置にまで下降したならばり７ター２７を停止し、ＣＲ，
Ｄ支持金具２８をエアーシリンダ３５により水平に移動
させて、当該ＯＲ，Ｄ支持金具２８でＯＲ，Ｄを支持し
、再びリフター２７を下降させる。上記のようにして、
す７ター２７が下降すると、このリフター２７の下降動
作にともなって、昇降パイプ３０も下降を開始するが、
パイプ３０は軸受３１にＣＲＤ着脱ヘッド２６の下端瀘
当接することによってこれ以上の下降が制限されるから
、す７ター２７かさらに下降を読けると、パイプ３０は
リフター２７から離れる。したがって、１ こ
の状態でＣＲＤ着脱ヘッド２６をエアーシリンダ３６ａ
、３６ｂにより元の位置に水平移動させ、再びリフター
２７を上昇させて、リフター２７上にＣＲ，Ｄが載置さ
れたならば、その状態でＣＲ，Ｄ支持金具２８をエアー
シリンダ３５により元の位置に水平移動させ、リフター
２７を元の位置にまで下降させ、ＣＨＤ６をＣＲＤカー
ト２５に収納する。なお、その後の手順であるマスト駆
動機構２４の駆動によりマスト２３を水平に横転させる
操作は従来と同様である。When removing the CFLD from the CAD housing, use CH
CRD cart, 2
5. Set the glue 7 on the tar 27, raise the lifter 27 to push up the pipe 30, and remove it. ,D
EC, ``'D'' to 6y)' 26 t * V)
C with the bolt wrench of the l-5CRD attachment/detachment head 26.
Loosen the RD mounting bolts and remove CR, D housing and CR.
, D, the lifter 27 is lowered. Once the CRD has been lowered to the position of the CAD support bracket 28', stop the 7-tar 27 and move the CR,
The D support fitting 28 is moved horizontally by the air cylinder 35, the OR and D are supported by the OR and D support fittings 28, and the lifter 27 is lowered again. As above,
When the lifter 27 descends, the elevating pipe 30 also starts descending as the lifter 27 descends.
Since the lower end of the CRD attachment/detachment head 26 is in contact with the bearing 31, the pipe 30 is restricted from descending any further, so when the stopper 27 is able to descend further, the pipe 30 separates from the lifter 27. Therefore, 1. In this state, the CRD attachment/detachment head 26 is moved to the air cylinder 36a.
, 36b to the original position, lifter 27 is raised again, and CR, D is placed on the lifter 27. The lifter 27 is lowered to the original position, and the CHD 6 is stored in the CRD cart 25. Note that the subsequent procedure of horizontally rolling the mast 23 by driving the mast drive mechanism 24 is the same as in the conventional method.
本発明は以上のごとき構成よりなシ、従来独立に構成さ
れていたＣＲＤ着脱部とＣＲＤ搬送部とを一体に構成し
、ＣＡＤの支持金具とその移動機構およびＣＢり着脱部
移動機構を備えかつＣＲＤ着脱部、を昇降せしめるリフ
ターをＣＲＤ搬送部に装着せしめたことＫより、第８図
に示す従来形ＣＲＤ交換装置８のように１独立して構成
されているＣＲＤ着脱部９とＣＲＤ搬送部１２との間で
ＣＡＤ６を受渡しする必要はなく、シたがって、従来の
ように、ＣＲＤ着脱着脱０走行台車１０とＣＲＤ搬送部
１２の走行台車１３との位置決め制御を精度よくおこな
われなければならないといつ九作業から解放されるもの
であって、ＣＲＤ交換装置の位置決め作業は、従来より
も大幅に簡便化される。また、ＣＲＤ６の搬出入に際し
てマスト２３を横転する場合、第８図に示す従来形ＣＲ
Ｄ交換装置８のように、マスト１４の横転動作に支障と
ならないよう、ＣＲＤ着脱部９を退避させる泌要はない
から、ペデスタル３に近い外周寄シの、ＣＲＤ６を交換
するに際しても、従来のように、ＣＲＤ着脱部９とペデ
スタル３の壁面に取り付けられている各種機器、配管な
どとが接触するといった危惧はなくなり、作業員による
ペデスタル空間１７内の目視監視項目を削減することが
できる。The present invention has the above-mentioned configuration, integrates the CRD attachment/detachment section and the CRD conveyance section, which were conventionally configured independently, and includes a CAD support fitting and its movement mechanism, and a CB attachment/detachment section movement mechanism. Since a lifter for raising and lowering the CRD attachment/detachment part is attached to the CRD conveyance part, the CRD attachment/detachment part 9 and the CRD conveyance part, which are constructed independently, as in the conventional CRD exchange device 8 shown in FIG. There is no need to transfer the CAD 6 to and from the CRD transport section 12, and therefore, the positioning control between the CRD attachment/detachment zero traveling trolley 10 and the traveling trolley 13 of the CRD transport section 12 must be performed with high accuracy as in the conventional manner. The positioning work of the CRD exchange device is greatly simplified compared to the conventional method. In addition, when the mast 23 is overturned when loading and unloading the CRD 6, the conventional CR
Unlike the D exchange device 8, there is no need to evacuate the CRD attachment/detachment part 9 so as not to interfere with the rollover operation of the mast 14. Thus, there is no fear that the CRD attachment/detachment section 9 will come into contact with various devices, piping, etc. attached to the wall surface of the pedestal 3, and the visual monitoring items in the pedestal space 17 by workers can be reduced.
さらに、従来独立して構成されていたＣＲＤ着脱部９と
ＣＲＤ搬送部１２とを一体に構成できるということは、
ＣＲＤ交換装置２１そのものをコンパクト化できること
を意味し、狭いペデスタル空間１７内を有効に活用する
ことができる。Furthermore, the fact that the CRD attachment/detachment section 9 and the CRD conveyance section 12, which were conventionally configured independently, can be configured integrally means that
This means that the CRD exchange device 21 itself can be made compact, and the inside of the narrow pedestal space 17 can be effectively utilized.
以上詳述したように１本発明によれば、従来に比べて装
置の位置決めが大幅に簡便化され、作業員による目視監
視項目も削減され、しかも装置そのものをコンパクト化
することのできる、実利性にすぐれたＣＲり交換装置を
得ることができるという効果がある。As detailed above, according to the present invention, the positioning of the device is greatly simplified compared to the conventional method, the visual monitoring items for workers are reduced, and the device itself can be made more compact. This has the effect that an excellent CR replacement device can be obtained.
第１図〜第７図は本発明に係る制御棒駆動機構（Ｃ几Ｄ
）交換装置の一実施例を示し、第１図はＣＲＤ着脱搬送
部が直立状態にある本発明装置の全体構成説明図、第２
図はＣＲＤ着脱搬送部が横転状態にある本発明装置の全
体構成説明図、第３図は本発明装置の要部であるＣＲＤ
着脱搬送部の詳細を示す第１図の部分拡大図、第４図は
第３図のＣＲＤ着脱搬送部にＣＲＤカートを収納した状
態を示す第１図の部分拡大図、第５図は第４図のと独立
しているＣＲＤ搬送部が直立状態にある従来形ＣＲ，Ｄ
交換装置の全体構成説明図である。
１・・・原子炉圧力容器、２・・・原子炉格納容器、３
・・・ペデスタル、４・・・ＣＲＤハウシング、６・・
・ＣＲＤ。
７・・・旋回移動台車、１７・・・ペデスタル空間、１
８・・・ＣＲＤ搬出入口、１９・・・ブラケット、２０
・・・環状レール、２１・・・ＣＲＤ交換装置、２２・
・・走行台車、２３・・・マスト、２４・・・マスト駆
動機構、２５・・・ＣＲＤカート、２６・・・ＣＲＤ着
脱ヘッド、２７・・・リフター、２８・・・ＣＲ，Ｄ支
持金具、２９ａ。
２９ｂ・・・スクリューロッド、３０・・・昇降パイプ
、３１・・・軸受、３２ａ、３２ｂ・・・リンク、３３
・・・ＣＲり把持金具、３４・・・復帰バネ、３５・・
・エアーシリンダ、３６ａ、３６ｂ・・・エアーシリン
ダ。Figures 1 to 7 show the control rod drive mechanism (C-D) according to the present invention.
) shows one embodiment of the exchanging device, FIG.
The figure is an explanatory diagram of the overall configuration of the device of the present invention with the CRD attachment/detachment section in an overturned state, and Figure 3 shows the CRD which is the main part of the device of the present invention.
FIG. 4 is a partial enlarged view of FIG. 1 showing the CRD cart stored in the CRD attachment/detachment section of FIG. 3, and FIG. 5 is a partial enlarged view of FIG. Conventional CR, D with an independent CRD transport section in an upright position as shown in the figure
FIG. 2 is an explanatory diagram of the overall configuration of a switching device. 1... Reactor pressure vessel, 2... Reactor containment vessel, 3
...Pedestal, 4...CRD housing, 6...
・CRD. 7... Rotating moving trolley, 17... Pedestal space, 1
8... CRD loading/unloading entrance, 19... Bracket, 20
... Annular rail, 21 ... CRD exchange device, 22.
... Traveling trolley, 23... Mast, 24... Mast drive mechanism, 25... CRD cart, 26... CRD detachable head, 27... Lifter, 28... CR, D support metal fittings, 29a. 29b...Screw rod, 30...Elevating pipe, 31...Bearing, 32a, 32b...Link, 33
...CR gripping bracket, 34...Return spring, 35...
・Air cylinder, 36a, 36b...Air cylinder.
Claims (1)
駆動機構ハウジングに対して制御棒駆動機構の着脱をお
こなう制御棒駆動機構着脱部と、上記制御棒駆動機構着
脱部との間で制御棒駆動機構の受渡しをおこなった後横
転して制御棒駆動機構の搬出入をおこなう制御棒駆動機
構搬送部とを備えてなる制御棒駆動機構交換装置におい
て、上記制御棒駆動機構着脱部と制御棒駆動機構搬送部
とを一体に構成し、かつ制御棒駆動機構着脱部を昇降動
作せしめるリフターを制御棒駆動機構搬送部に装着して
なることを特徴とする制御棒駆動機構交換装置。 ２、制御棒駆動機構搬送部と制御棒駆動機構着脱部との
間で制御棒駆動機構の受渡しをおこなう時に一時制御棒
、駆動機構の下部をささえる制御棒駆動機構支持部を制
御棒駆動機構搬送部に装着してなることを特徴とする特
許請求の範囲第１項記載の制御棒駆動機構交換装置。 ３、制御棒駆動機構着脱部と制御棒駆動機構搬送部の制
御棒駆動機構取扱中心を一致させ、操作の簡便化を計っ
たことを特徴とする特許請求の範囲第１項記載の制御棒
駆動機構交換装置。 ４、制御棒駆動機構受渡し時に一時制御棒駆動機構の下
部をささえる制御棒駆動機構支持部を制御棒駆動機構搬
送部に備えるとともに、制御棒駆動機構着脱部が制御棒
駆動機構搬送部より外方向に移動し制御棒枢動機構搬送
部に制御棒駆動機構を収納可能としたことを特徴とする
特許請求の範囲第３項に記載の制御棒駆動機構交換装置
。 ５、前記リフターまたは制御棒駆動機構着脱部の動作に
より把持動作せしめる制御棒駆動機構把持部を制御棒駆
動機構搬送部に装着してなることを特徴とする特許請求
の範囲第１項記載の制御棒駆動機構交換装置。[Scope of Claims] 1. A control rod drive mechanism attachment/detachment section for attaching and detaching the control rod drive mechanism to and from the control rod drive mechanism housing that is integrally attached to the reactor pressure vessel, and the control rod drive mechanism attachment/detachment section. and a control rod drive mechanism transfer section that transfers the control rod drive mechanism between the control rod drive mechanism and then rolls over to transport the control rod drive mechanism in and out. A control rod drive mechanism exchange characterized in that an attachment/detachment part and a control rod drive mechanism conveyance part are integrally configured, and a lifter for raising and lowering the control rod drive mechanism attachment/detachment part is attached to the control rod drive mechanism conveyance part. Device. 2. When transferring the control rod drive mechanism between the control rod drive mechanism transport part and the control rod drive mechanism attachment/detachment part, temporarily transport the control rod drive mechanism support part that supports the lower part of the control rod and drive mechanism to the control rod drive mechanism transport part. 2. The control rod drive mechanism changing device according to claim 1, wherein the control rod drive mechanism changing device is mounted on a control rod drive mechanism. 3. The control rod drive according to claim 1, characterized in that the control rod drive mechanism handling centers of the control rod drive mechanism attachment/detachment section and the control rod drive mechanism transfer section are aligned to simplify operation. Mechanism exchange device. 4. The control rod drive mechanism transport section is equipped with a control rod drive mechanism support section that temporarily supports the lower part of the control rod drive mechanism when the control rod drive mechanism is delivered, and the control rod drive mechanism attaching/detaching section is installed outward from the control rod drive mechanism transfer section. 4. The control rod drive mechanism exchange device according to claim 3, wherein the control rod drive mechanism can be moved to and housed in the control rod pivot mechanism transport section. 5. The control according to claim 1, characterized in that a control rod drive mechanism gripping part that is gripped by the operation of the lifter or the control rod drive mechanism attaching/detaching part is attached to the control rod drive mechanism transport part. Rod drive mechanism exchange device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60080185A JPS61239195A (en) | 1985-04-17 | 1985-04-17 | Exchanger for driving mechanism of control rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60080185A JPS61239195A (en) | 1985-04-17 | 1985-04-17 | Exchanger for driving mechanism of control rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61239195A true JPS61239195A (en) | 1986-10-24 |
Family
ID=13711306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60080185A Pending JPS61239195A (en) | 1985-04-17 | 1985-04-17 | Exchanger for driving mechanism of control rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61239195A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4973443A (en) * | 1988-10-26 | 1990-11-27 | Westinghouse Electric Corp. | System for removing and installing a control rod drive |
| US5019325A (en) * | 1988-10-26 | 1991-05-28 | Westinghouse Electric Corp. | Method for removing and installing a control rod drive |
| US6501813B1 (en) * | 1997-06-11 | 2002-12-31 | Kabushiki Kaisha Toshiba | Control rod/fuel support grapple |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329497A (en) * | 1976-08-30 | 1978-03-18 | Toshiba Corp | Exchanging device of control rod driving mechanism |
-
1985
- 1985-04-17 JP JP60080185A patent/JPS61239195A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329497A (en) * | 1976-08-30 | 1978-03-18 | Toshiba Corp | Exchanging device of control rod driving mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4973443A (en) * | 1988-10-26 | 1990-11-27 | Westinghouse Electric Corp. | System for removing and installing a control rod drive |
| US5019325A (en) * | 1988-10-26 | 1991-05-28 | Westinghouse Electric Corp. | Method for removing and installing a control rod drive |
| US6501813B1 (en) * | 1997-06-11 | 2002-12-31 | Kabushiki Kaisha Toshiba | Control rod/fuel support grapple |
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