JPS58211696A - Removable device for internal pump - Google Patents
Removable device for internal pumpInfo
- Publication number
- JPS58211696A JPS58211696A JP57094819A JP9481982A JPS58211696A JP S58211696 A JPS58211696 A JP S58211696A JP 57094819 A JP57094819 A JP 57094819A JP 9481982 A JP9481982 A JP 9481982A JP S58211696 A JPS58211696 A JP S58211696A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- internal pump
- pump
- pump shaft
- guide rod
- 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
- Fertilizing (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】
本発明は原子炉冷却材を循環させるインターナルポンプ
の着脱装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an attachment/detachment device for an internal pump that circulates nuclear reactor coolant.
従来のインターナルポンプは第１図に示すように、圧力
容器１の底部に設けたボス部１ａにシール７、モータ部
８およびモータ部円筒９を内蔵するモータケース２ｆｔ
取付け、このモータケース２内の上部にディフューザ５
を有するストレッチチューブ６を挿入すると共に、この
ストレッチチューブ６内にインペラ３′！！−取付けた
シャフト４を挿入し、このシャフト４の下端をビン１０
ｔｌ−介してモータ部円筒９に固定し、前記モータケー
ス２の下端を盲栓１１を有するカバーよシ閉塞した構造
からなるウェットモータ型ボングである。As shown in FIG. 1, a conventional internal pump has a 2ft motor case in which a seal 7, a motor part 8, and a motor part cylinder 9 are built into a boss part 1a provided at the bottom of a pressure vessel 1.
Install the diffuser 5 at the top inside this motor case 2.
Insert the stretch tube 6 having the impeller 3' into the stretch tube 6! ! - Insert the attached shaft 4 and connect the lower end of this shaft 4 to the bin 10.
This wet motor type bong has a structure in which it is fixed to a motor cylinder 9 through a tl and the lower end of the motor case 2 is closed with a cover having a blind plug 11.
上記ポンプは第２図に示すように、インペラ３、ポンプ
シャフト４、ディユーザ５およびストレッチチューブ６
をそれぞれ分離して圧力容器１の上方側へ取り出すこと
が可能に、かつシール７、モータ部８、モータ円筒９、
ビン１０および盲栓１１はそれぞれ分離して圧力容器１
の下方側へ取り出すことが可能に構成されている。As shown in FIG. 2, the above pump includes an impeller 3, a pump shaft 4, a diuser 5 and a stretch tube 6.
can be separated and taken out to the upper side of the pressure vessel 1, and the seal 7, the motor part 8, the motor cylinder 9,
The bottle 10 and the blind stopper 11 are each separated into a pressure vessel 1.
It is configured so that it can be taken out to the lower side.
上記モータ部をモータケース２から取り外し、取シ付け
る時には、ポンプシャフト４の上端近くのフランジとス
トレッチチューブ６の頂部が接触し、またシール７が作
動することにより、圧力容−器１に冷却材を満したまま
でモータ部８の出し入れができるようになっている。
、
従来のモータ部８をモータケース２に取り付け、あるい
は取り外しをする装置は例えば第３図および第４図に示
すとおりである。すなわち、モータ部８をモータケース
２に取り付ける場合には、まず第３図に示すように移動
台車１２上で芯出し治具１３を使用し、モータ部８をポ
ンプシャフト４の真下に移動する。その後、特殊ナツｉ
モータ部８のフランジ８ａおよびモータケース２のフラ
ンジ２ａに取り付け、その両フランジｉ８ａ。When the motor section is removed from the motor case 2 and installed, the flange near the upper end of the pump shaft 4 comes into contact with the top of the stretch tube 6, and the seal 7 is activated, allowing coolant to flow into the pressure vessel 1. The motor section 8 can be taken in and out while the condition is filled.
A conventional device for attaching or detaching the motor unit 8 to or from the motor case 2 is shown in FIGS. 3 and 4, for example. That is, when attaching the motor section 8 to the motor case 2, first, as shown in FIG. After that, special natsu i
Attached to flange 8a of motor section 8 and flange 2a of motor case 2, both flanges i8a.
２ａネジ棒１４で連結し、移動台車１２を外し去ってネ
ジ台車ｌａをモータ部８の下に移動させ、モータ部８を
第４図に示すようにモータケース２内に取り付けていた
。2a are connected by a threaded rod 14, the movable carriage 12 is removed, the screw carriage la is moved below the motor section 8, and the motor section 8 is installed inside the motor case 2 as shown in FIG.
この場合、モータ部円筒９内にポンプシャフト４が円滑
に挿入されないと、ポンプシャフト４を突き上げてスト
レッチチューブ６頂部のシール機能を喪失させ、圧力容
器１内の冷却材を漏洩させる危険がある。このため従来
は第４図に示すようにポンプシャフト４の下端のネジ穴
４ａと床に埋設されたナツト１７をシャフト固定棒１５
で連結固定してモータ部８を取付けていた。またモータ
部８の取シ外しは、上記と逆の手順で行われていた。In this case, if the pump shaft 4 is not inserted smoothly into the motor cylinder 9, there is a risk that the pump shaft 4 will push up and the sealing function of the top of the stretch tube 6 will be lost, causing the coolant in the pressure vessel 1 to leak. For this reason, conventionally, as shown in FIG.
The motor part 8 was installed by connecting and fixing the parts. Further, the removal of the motor section 8 was performed in the reverse order to the above.
上記のように従来の手段は、モータケース直下の床にナ
ツトを埋め込んで、ポンプシャフト４を下向きに引張っ
ておく工事が必要であるばかりでなく、着脱作業に多く
の工具を使用し、作業工程も複雑で、かつ面倒である欠
点があった。As mentioned above, the conventional means not only requires work to embed a nut in the floor directly below the motor case and pull the pump shaft 4 downward, but also requires the use of many tools for attachment/detachment work, and the work process It also had the disadvantage of being complicated and troublesome.
本発明は上記欠点を解消し、モータ部をモータケース内
に容易に、かつ迅速に着脱することを目的とするもので
、ポンプシャフトの下端にガイド棒を垂下状態に取付け
、このガイド棒の下部にインターナルポンプのモータ部
を上下動させるリフターを取シ付けたことを特徴とする
ものである。The present invention aims to eliminate the above-mentioned drawbacks and to allow the motor section to be easily and quickly attached to and removed from the motor case. The pump is characterized by a lifter that moves the motor section of the internal pump up and down.
以下本発明の一実施例を図面について説明する。An embodiment of the present invention will be described below with reference to the drawings.
第５図において、２は圧力容器のボス部（図示せず）に
取付けられたモータケースで、このモータケース２内に
ポンプシャフト４を内蔵するモータ部円筒９を収納した
モータ部８がセットされている。このモータ部８のセッ
トハ、まず適当な移動台車（図示せず）に乗せられてモ
ータケース２の直下に運ばれてきたモータ部８のモータ
部円筒９に、モータリフタ１９例えばベローを取付けた
ガイド棒１８をモータ部８の下方から挿入し、ボンプン
ヤフト４の下端に設けたネジ４ａに固定する。ついで油
圧源２０から作動油をペロー１９内に注入すると、ペロ
ー１９は伸長してモータ部８を押し上げるので、モータ
８をモータケース２内に挿入してセットすることができ
る。In FIG. 5, reference numeral 2 denotes a motor case attached to the boss part (not shown) of the pressure vessel, and a motor part 8 housing a motor part cylinder 9 containing a pump shaft 4 is set inside this motor case 2. ing. To set up the motor section 8, first place the motor section cylinder 9 of the motor section 8, which has been placed on a suitable moving cart (not shown) and carried directly below the motor case 2, on a guide rod to which a motor lifter 19, for example, a bellows, is attached. 18 is inserted from below the motor part 8 and fixed to the screw 4a provided at the lower end of the punch shaft 4. Next, when hydraulic oil is injected into the perot 19 from the hydraulic source 20, the perot 19 expands and pushes up the motor section 8, so that the motor 8 can be inserted and set into the motor case 2.
本実施例は上記のような構成からなシ、その他の構成は
第１図に示す従来例と同一であるから図面および説明を
省略する。本実施例では上述したように、空気中に垂下
され、かつポンプシャフト４と一体に結合されたガイド
棒１８に、モータ部８を上下動させるリフター１９が取
付けられているため、モータ部円筒９内にポンプシャフ
ト４が円滑に挿入されなくとも、ポンプシャフト４を突
き上げて炉水を漏洩させることは絶対にない。したがっ
て従来のように床にネジ金埋め込んでポンプシャフト４
を下向きに引っ張っておく必要がなくなる。This embodiment does not have the above-mentioned configuration, and the other configurations are the same as the conventional example shown in FIG. 1, so the drawings and explanation will be omitted. In this embodiment, as described above, the lifter 19 for moving the motor section 8 up and down is attached to the guide rod 18 which is suspended in the air and is integrally connected to the pump shaft 4. Even if the pump shaft 4 is not inserted smoothly, the pump shaft 4 will never push up and leak reactor water. Therefore, as in the past, the pump shaft 4 is embedded in screws in the floor.
There is no need to pull it downward.
前記ガイド棒１８は、その外径をモータ部円筒 。The guide rod 18 has an outer diameter similar to that of the motor section cylinder.
９の下端内径との間に僅かの隙間金有する程度の寸法に
形成することが好ましい。またガイド棒１８全モータ部
８の下方から挿入してポンプシャフト４の下端のネジ穴
４ａに固定するだけで、ポンプシャフト４とモータ部円
筒９およびモータ部８の両中心を合致させることができ
る。なおモータ部８の下方にガイド棒１８を挿入する空
間がない場合には、ガイド棒１８を数本に分割して挿入
した後に連結するようにすればよい。It is preferable that the size is such that there is a slight clearance between the inner diameter of the lower end of the lower end and the inner diameter of the lower end. In addition, by simply inserting the guide rod 18 from below the entire motor section 8 and fixing it into the screw hole 4a at the lower end of the pump shaft 4, the centers of the pump shaft 4, the motor section cylinder 9, and the motor section 8 can be aligned. . Note that if there is no space below the motor section 8 to insert the guide rod 18, the guide rod 18 may be divided into several pieces, inserted, and then connected.
以上説明したように本発明によれば、従来のような床に
ナラトラ埋め込む工事および芯出し治具を不要となるば
かシでなく、モータ部とポンプ７ヤフトの中心合わせお
よびモータ部のモータケース内への取付け、取外しを容
易に、かつ迅速に行うことができる。As explained above, according to the present invention, there is no need for the conventional work of embedding the Naratra in the floor and the need for a centering jig, but it is possible to align the center of the motor part and the pump shaft 7, and to arrange the centering of the motor part within the motor case of the motor part. It can be easily and quickly installed and removed.
第１図および第２図は従来のインタナールポンプの縦断
面図および分解詳細図、第３図および第４図は従来のイ
ンターナルポンプの着脱状態を示す説明図、第５図は本
発明のインターナルポンプの着脱装置の一実施例を示す
要部断面である。
１・・・圧力容器、４・・・ポンプシャフト、８・・・
モータ部、１８・・・ガイド棒、１９・・・リフター。
第 １ 図
′ｆＪ ４ 図Figures 1 and 2 are longitudinal cross-sectional views and exploded detailed views of a conventional internal pump, Figures 3 and 4 are explanatory diagrams showing the conventional internal pump in an attached/detached state, and Figure 5 is an illustration of a conventional internal pump according to the present invention. 1 is a cross-sectional view of a main part showing an embodiment of an internal pump attachment/detachment device. 1...Pressure vessel, 4...Pump shaft, 8...
Motor part, 18... Guide rod, 19... Lifter. Figure 1'fJ Figure 4
Claims (1)
させるインターナルポンプにおいて、そのポンプシャフ
トの下端にガイド棒を垂下状態に取付け、このガイド棒
の下部にインターナルポンプのモータ部を上下動させる
リフターを取付けたことを特徴とするインターナルポン
プの着脱装置。In the internal pump that is installed at the bottom of the reactor pressure vessel and circulates the reactor coolant, a guide rod is attached to the lower end of the pump shaft in a hanging state, and the motor part of the internal pump is attached to the bottom of this guide rod so that the motor part of the internal pump can be moved up and down. An internal pump attaching/detaching device characterized by being equipped with a lifter for moving the internal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57094819A JPS58211696A (en) | 1982-06-04 | 1982-06-04 | Removable device for internal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57094819A JPS58211696A (en) | 1982-06-04 | 1982-06-04 | Removable device for internal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58211696A true JPS58211696A (en) | 1983-12-09 |
Family
ID=14120659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57094819A Pending JPS58211696A (en) | 1982-06-04 | 1982-06-04 | Removable device for internal pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58211696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6454290A (en) * | 1987-08-25 | 1989-03-01 | Japan Atomic Power | Motor handling device of internal pump |
-
1982
- 1982-06-04 JP JP57094819A patent/JPS58211696A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6454290A (en) * | 1987-08-25 | 1989-03-01 | Japan Atomic Power | Motor handling device of internal pump |
| JPH0531956B2 (en) * | 1987-08-25 | 1993-05-13 | Nippon Genshiryoku Hatsuden Kk |
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