JPH0684674A - Manufacture of heat resistant coil - Google Patents
Manufacture of heat resistant coilInfo
- Publication number
- JPH0684674A JPH0684674A JP4235926A JP23592692A JPH0684674A JP H0684674 A JPH0684674 A JP H0684674A JP 4235926 A JP4235926 A JP 4235926A JP 23592692 A JP23592692 A JP 23592692A JP H0684674 A JPH0684674 A JP H0684674A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- ceramic
- coating layer
- stainless steel
- electric wire
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 37
- 239000000945 filler Substances 0.000 claims abstract description 25
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 25
- 239000010935 stainless steel Substances 0.000 claims abstract description 25
- 239000011247 coating layer Substances 0.000 claims abstract description 20
- 238000005524 ceramic coating Methods 0.000 claims abstract description 12
- 238000007872 degassing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- Insulating Of Coils (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐熱コイルの製作方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a heat resistant coil.
【０００２】[0002]
【従来の技術】例えば加圧水型原子炉では、図５に示す
ように原子炉容器蓋ｄ上に設置した制御棒駆動装置ｃに
より複数の制御棒クラスタａを炉心槽ｂに挿入し或いは
引き抜くことにより、炉の出力を制御している。これら
の制御棒クラスタａを挿入、引抜き、保持するために
は、制御棒駆動装置ｃ内に電磁コイルを装着し、同コイ
ルの電磁力により制御棒駆動装置ｃ内の駆動リンクを作
動させる必要がある。2. Description of the Related Art In a pressurized water reactor, for example, as shown in FIG. 5, a plurality of control rod clusters a are inserted into or pulled out of a reactor core b by a control rod drive device c installed on a reactor vessel lid d. , Controlling the power of the furnace. In order to insert, pull out and hold these control rod clusters a, it is necessary to mount an electromagnetic coil in the control rod drive device c and operate the drive link in the control rod drive device c by the electromagnetic force of the coil. is there.
【０００３】原子炉が一定出力で運転しているときに
は、制御棒クラスタａを所定位置に保持するため、コイ
ルに連続的に電流を流して、コイルを常に励磁状態にし
ている。そのため、電流値によっては、コイルが自己発
熱して、コイルの温度がかなり上昇する。それに加え
て、原子炉容器からの熱もコイルに伝達されるので、コ
イルがかなりの高温（４００℃程度）になるのを避けら
れない。このため、コイルに耐熱コイルを使用してい
る。When the reactor is operating at a constant output, in order to hold the control rod cluster a at a predetermined position, a current is continuously applied to the coil so that the coil is always in an excited state. Therefore, depending on the current value, the coil self-heats and the temperature of the coil rises considerably. In addition to that, heat from the reactor vessel is also transferred to the coil, so that the coil is inevitably heated to a considerably high temperature (about 400 ° C.). For this reason, heat resistant coils are used for the coils.
【０００４】[0004]
【発明が解決しようとする課題】従来、耐熱コイルの許
容温度は、構成材料の限界温度の関係上、２００℃程度
であるが、前述のように相当の高温になるので、実際に
使用する場合には、強制冷却により、許容温度まで下げ
る必要がある。そのため、図６に示すように冷却空気ｅ
を制御棒駆動装置ｃのコイルの周辺へ送って、コイルを
２００℃程度まで強制的に下げている。Conventionally, the allowable temperature of the heat-resistant coil is about 200 ° C. due to the limit temperature of the constituent materials. However, as described above, the temperature is considerably high. Therefore, when actually used. Therefore, it is necessary to lower the temperature to an allowable temperature by forced cooling. Therefore, as shown in FIG.
Is sent to the periphery of the coil of the control rod drive device c, and the coil is forcibly lowered to about 200 ° C.
【０００５】また従来の耐熱コイルは、図７に示すよう
に、ステンレス製巻枠ｆと、同ステンレス製巻枠ｆに巻
き付けたコイル電線ｇと、同コイル電線ｇと上記ステン
レス製巻枠ｆとの間に充填した充填材ｈとにより構成さ
れている。この充填材ｈは、コイル電線ｇの固定、コイ
ル電線ｇ相互間の電気的絶縁の維持及び熱電導に供され
ているが、充填材ｈが外部に露出しているために、機械
的強度が弱くて、クラックが発生し易く、充填材ｈに僅
かなクラックが発生すると、コイルの耐湿性が低下する
という問題があった。As shown in FIG. 7, the conventional heat-resistant coil includes a stainless steel reel f, a coil wire g wound around the stainless steel reel f, the coil wire g, and the stainless steel reel f. And a filling material h filled between them. The filling material h is used for fixing the coil electric wire g, maintaining electrical insulation between the coil electric wires g, and thermoconducting. However, since the filling material h is exposed to the outside, the mechanical strength is high. There is a problem that the coil is weak and easily cracked, and when a slight crack is generated in the filler h, the moisture resistance of the coil is lowered.
【０００６】本発明は前記の問題点に鑑み提案するもの
であり、その目的とする処は、耐熱性を大幅に向上でき
る耐熱コイルの製作方法を提供しようとする点にある。The present invention is proposed in view of the above problems, and an object of the present invention is to provide a method for manufacturing a heat-resistant coil capable of greatly improving heat resistance.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明の耐熱コイルの製作方法は、セラミックス
コーティング層をもつコイル電線をステンレス製巻枠に
コイル状に巻き付け、次いで同コイル電線を加熱、焼結
し、同コイル電線を被覆しているセラミックスコーティ
ング層中の有機分を分解させて、ガス抜きを行うことに
より、同コーティング層をセラミックス化し、次いで上
記コイル電線をステンレス製外筒に嵌め込み、次いで同
ステンレス製外筒内のコイル電線の周りにセラミックス
系充填材を充填し、同セラミックス系充填材を加熱、焼
結して同セラミックス系充填材中の有機分を分解させ
て、ガス抜きを行うことにより、同充填材をセラミック
ス化することを特徴としている。In order to achieve the above object, a method of manufacturing a heat resistant coil according to the present invention is such that a coil electric wire having a ceramic coating layer is wound around a stainless steel reel in a coil shape, and then the coil electric wire is wound. Is heated and sintered to decompose the organic components in the ceramic coating layer covering the coil wire to degas, thereby converting the coating layer into ceramic, and then transforming the coil wire into a stainless steel outer cylinder. Then, the ceramic-based filler is filled around the coil electric wire inside the stainless steel outer cylinder, and the ceramic-based filler is heated and sintered to decompose the organic component in the ceramic-based filler, It is characterized in that the filling material is made into ceramic by degassing.
【０００８】[0008]
【作用】本発明は前記のように構成されており、先ずコ
イル電線をステンレス製巻枠にコイル状に巻き付け、次
いで同コイル電線を加熱、焼結し、同コイル電線を被覆
しているセラミックスコーティング層中の有機分を分解
させて、ガス抜きを行うことにより、同コーティング層
をセラミックス化し、次いで上記コイル電線をステンレ
ス製外筒に嵌め込み、次いで同ステンレス製外筒内のコ
イル電線の周りにセラミックス系充填材を充填し、同セ
ラミックス系充填材を加熱、焼結して同セラミックス系
充填材中の有機分を分解させて、ガス抜きを行うことに
より、同充填材をセラミックス化して、耐熱コイルを製
作する。The present invention is constructed as described above. First, the coil electric wire is wound around a stainless steel winding frame in a coil shape, and then the coil electric wire is heated and sintered to coat the coil electric wire. The coating layer is made ceramic by decomposing the organic component in the layer and degassing, then the coil electric wire is fitted into a stainless steel outer cylinder, and then the coil electric wire around the coil electric wire inside the stainless outer cylinder is made. The ceramic filler is filled, the ceramic filler is heated and sintered to decompose the organic components in the ceramic filler, and the gas is vented to make the filler ceramic and form a heat-resistant coil. To produce.
【０００９】[0009]
【実施例】次に本発明の耐熱コイルの製作方法を図１〜
図４に示す一実施例により説明すると、図１の１がステ
ンレス製巻枠、２がセラミックスシート、３がコイル電
線、４がセラミックス充填材、５が外筒、６が制御棒駆
動装置（図５、図６のｃ参照）の駆動軸である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a method for manufacturing a heat resistant coil of the present invention will be described with reference to FIGS.
Referring to one embodiment shown in FIG. 4, reference numeral 1 in FIG. 1 is a stainless steel reel, 2 is a ceramic sheet, 3 is a coil wire, 4 is a ceramic filler, 5 is an outer cylinder, and 6 is a control rod drive device (see FIG. 5, the drive shaft (see c in FIG. 6).
【００１０】図２は、上記コイル電線３の詳細を示して
いる。１２が銅線、１１が同銅線１２の表面に形成した
ニッケルメッキ層、１３が同ニッケルメッキ層１１の表
面に形成したセラミックスコーティング層、１０が同セ
ラミックスコーティング層１３の表面に形成したガラス
ファイバ層である。耐熱コイルを製作するに当たって
は、 （１）ステンレス製巻枠１（図３（ａ）参照）にセラミ
ックスシート２を貼付ける（図３（ｂ）参照）。 （２）次いでコイル電線３をステンレス製巻枠１にコイ
ル状に巻き付ける（図３（ｃ）参照）。 （３）次いでステンレス製巻枠１とコイル電線３とを加
熱・焼結炉に入れ、約４５０℃、５時間放置の条件で、
コイル電線３を加熱、焼結し、コイル電線３を被覆して
いるセラミックスコーティング層１３中の有機分を分解
させて、ガス抜きを行うことにより、同コーティング層
１３をセラミックス化する（図３（ｄ）参照）。 （４）次いでステンレス製巻枠１とコイル電線３とを加
熱・焼結炉から出し、コイル電線３をステンレス製外筒
５に嵌め込む（図３（ｅ）参照）。 （５）次いでステンレス製巻枠１とコイル電線３とステ
ンレス製外筒５とを真空槽に入れて、セラミックス系充
填材４をステンレス製外筒５内のコイル電線３の周りに
充填する。即ち、真空槽に入れたら、真空ポンプを作動
して、真空槽内を所定の真空度まで上げ、次いで真空槽
と真空ポンプとを繋ぐ配管途中の真空引きバルブを閉
じ、加圧源と充填材収納容器とを繋ぐ配管途中の加圧用
バルブを徐々に開いて、充填材収納容器内を加圧し、次
いで充填材収納容器からステンレス製外筒５内へ延びた
配管途中の充填用バルブを開いて、ペースト状のセラミ
ックス系充填材４をステンレス製外筒５内のコイル電線
３の周りに充填する（図３（ｆ）参照）。 （６）次いでステンレス製巻枠１とコイル電線３とステ
ンレス製外筒５とを真空槽から出して、加熱・焼結炉に
入れ、約２５０℃、５時間放置の条件で、セラミックス
系充填材４を加熱、焼結し、セラミックス系充填材４中
の有機分を分解させて、ガス抜きを行うことにより、同
充填材４をセラミックス化する（図３（ｇ）参照）。FIG. 2 shows the details of the coil electric wire 3. Reference numeral 12 is a copper wire, 11 is a nickel plating layer formed on the surface of the copper wire 12, 13 is a ceramic coating layer formed on the surface of the nickel plating layer 10, and 10 is a glass fiber formed on the surface of the ceramic coating layer 13. It is a layer. In manufacturing the heat-resistant coil, (1) the ceramic sheet 2 is attached to the stainless steel reel 1 (see FIG. 3A) (see FIG. 3B). (2) Next, the coil electric wire 3 is wound around the stainless steel reel 1 in a coil shape (see FIG. 3C). (3) Next, the stainless steel reel 1 and the coil electric wire 3 are placed in a heating / sintering furnace and left at about 450 ° C. for 5 hours,
The coil electric wire 3 is heated and sintered to decompose organic components in the ceramic coating layer 13 covering the coil electric wire 3 and perform degassing to convert the coating layer 13 into a ceramic (see FIG. 3 ( See d)). (4) Next, the stainless steel reel 1 and the coil electric wire 3 are taken out from the heating / sintering furnace, and the coil electric wire 3 is fitted into the stainless steel outer cylinder 5 (see FIG. 3 (e)). (5) Next, the stainless reel 1 and the coil electric wire 3 and the stainless outer cylinder 5 are put in a vacuum chamber, and the ceramic filler 4 is filled around the coil electric wire 3 in the stainless outer cylinder 5. That is, after putting it in the vacuum chamber, the vacuum pump is operated to raise the vacuum chamber to a predetermined degree of vacuum, and then the vacuum valve in the middle of the pipe connecting the vacuum chamber and the vacuum pump is closed, and the pressure source and the filling material are closed. Gradually open the pressurization valve in the middle of the pipe connecting to the storage container to pressurize the inside of the filling material storage container, then open the filling valve in the middle of the piping extending from the filling material storage container into the stainless steel outer cylinder 5. Then, the paste-like ceramic-based filler 4 is filled around the coil electric wire 3 in the stainless outer cylinder 5 (see FIG. 3 (f)). (6) Next, the stainless reel 1, the coil electric wire 3, and the stainless outer cylinder 5 are taken out of the vacuum chamber, placed in a heating / sintering furnace, and left at about 250 ° C. for 5 hours under the condition that the ceramic filler is used. 4 is heated and sintered to decompose organic components in the ceramic-based filler 4 and degas, thereby making the filler 4 ceramic (see FIG. 3 (g)).
【００１１】図４は、上記耐熱コイル製作方法の製作の
流れを示している。FIG. 4 shows a manufacturing flow of the above heat-resistant coil manufacturing method.
【００１２】[0012]
【発明の効果】本発明の耐熱コイルの製作方法は前記の
ようにセラミックスコーティング層をもつコイル電線を
ステンレス製巻枠にコイル状に巻き付け、次いで同コイ
ル電線を加熱、焼結し、同コイル電線を被覆しているセ
ラミックスコーティング層中の有機分を分解させて、ガ
ス抜きを行うことにより、同コーティング層をセラミッ
クス化し、次いで上記コイル電線をステンレス製外筒に
嵌め込み、次いで同ステンレス製外筒内のコイル電線の
周りにセラミックス系充填材を充填し、同セラミックス
系充填材を加熱、焼結して同セラミックス系充填材中の
有機分を分解させて、ガス抜きを行うことにより、同充
填材をセラミックス化するので、耐熱コイルの耐熱性を
大幅に向上できる。As described above, the method of manufacturing the heat-resistant coil of the present invention is such that the coil electric wire having the ceramic coating layer is wound around a stainless steel reel in a coil shape, and then the coil electric wire is heated and sintered. By decomposing the organic component in the ceramic coating layer that covers, and degassing, the coating layer is made into ceramic, then the coil wire is fitted into a stainless steel outer cylinder, and then inside the stainless steel outer cylinder. The ceramic-based filler is filled around the coil wire, and the ceramic-based filler is heated and sintered to decompose organic components in the ceramic-based filler, and degassing the filler Since the is made into ceramic, the heat resistance of the heat resistant coil can be greatly improved.
【図１】（ａ）は本発明の耐熱コイル製作方法により製
作される耐熱コイルの平面図、（ｂ）はその縦断側面図
である。FIG. 1A is a plan view of a heat-resistant coil manufactured by a heat-resistant coil manufacturing method of the present invention, and FIG. 1B is a vertical cross-sectional side view thereof.
【図２】コイル電線の詳細を示す縦断正面図である。FIG. 2 is a vertical sectional front view showing details of a coil electric wire.
【図３】本発明の耐熱コイル製作方法の一実施例を示す
工程説明図である。FIG. 3 is a process explanatory view showing an embodiment of the heat resistant coil manufacturing method of the present invention.
【図４】同耐熱コイル製作方法の製作の流れを示す説明
図である。FIG. 4 is an explanatory diagram showing a flow of manufacturing in the same heat-resistant coil manufacturing method.
【図５】同耐熱コイルの使用部位を示す説明図である。FIG. 5 is an explanatory view showing a use part of the heat resistant coil.
【図６】同耐熱コイルの使用部位を示す説明図である。FIG. 6 is an explanatory diagram showing a use part of the heat resistant coil.
【図７】（ａ）は従来の耐熱コイルの平面図、（ｂ）は
その縦断側面図である。FIG. 7A is a plan view of a conventional heat-resistant coil, and FIG. 7B is a longitudinal side view thereof.
１ ステンレス製巻枠 ２ セラミックスシート ３ コイル電線 ４ セラミックス充填材 ５ ステンレス製外筒 ６ 制御棒駆動装置の駆動軸 ７ 制御棒クラスタ ８ 炉心槽 ９ 制御棒駆動装置 １０ コイル電線３のガラスファイバ層 １１ コイル電線３のニッケルメッキ層 １２ コイル電線３の銅線 １３ コイル電線３のセラミックスコーティング層 DESCRIPTION OF SYMBOLS 1 Stainless steel reel 2 Ceramics sheet 3 Coil electric wire 4 Ceramics filler 5 Stainless steel outer cylinder 6 Control rod drive unit drive shaft 7 Control rod cluster 8 Reactor core 9 Control rod drive unit 10 Glass fiber layer 11 of coil electric wire 3 Coil Nickel plating layer of electric wire 3 Copper wire of coil electric wire 13 Ceramic coating layer of coil electric wire 3
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小林 佳道 兵庫県神戸市兵庫区和田崎町一丁目１番１ 号 三菱重工業株式会社神戸造船所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshimichi Kobayashi 1-1-1 Wadasaki-cho, Hyogo-ku, Kobe-shi, Hyogo Mitsubishi Heavy Industries Ltd. Kobe Shipyard
Claims (1)
ル電線をステンレス製巻枠にコイル状に巻き付け、次い
で同コイル電線を加熱、焼結し、同コイル電線を被覆し
ているセラミックスコーティング層中の有機分を分解さ
せて、ガス抜きを行うことにより、同コーティング層を
セラミックス化し、次いで上記コイル電線をステンレス
製外筒に嵌め込み、次いで同ステンレス製外筒内のコイ
ル電線の周りにセラミックス系充填材を充填し、同セラ
ミックス系充填材を加熱、焼結して同セラミックス系充
填材中の有機分を分解させて、ガス抜きを行うことによ
り、同充填材をセラミックス化することを特徴とした耐
熱コイルの製作方法。1. A coil electric wire having a ceramic coating layer is wound around a stainless steel reel in a coil shape, and then the coil electric wire is heated and sintered to remove organic components in the ceramic coating layer covering the coil electric wire. The coating layer is made ceramic by disassembling and degassing, then the coil wire is fitted into a stainless steel outer cylinder, and then a ceramic filler is filled around the coil wire in the stainless steel outer cylinder. Manufacturing of a heat-resistant coil characterized by heating and sintering the same ceramics-based filler to decompose organic components in the same ceramics-based filler and degassing the same to make it ceramics. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4235926A JPH0684674A (en) | 1992-09-03 | 1992-09-03 | Manufacture of heat resistant coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4235926A JPH0684674A (en) | 1992-09-03 | 1992-09-03 | Manufacture of heat resistant coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0684674A true JPH0684674A (en) | 1994-03-25 |
Family
ID=16993289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4235926A Pending JPH0684674A (en) | 1992-09-03 | 1992-09-03 | Manufacture of heat resistant coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0684674A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004253233A (en) * | 2003-02-20 | 2004-09-09 | Daikin Ind Ltd | Inorganic powder-containing resin-coated electric wire, two-layer coated electric wire, inorganic powder-containing resin-coated coil, two-layer coated electric wire coil, inorganic material-coated insulating coil and method of manufacturing the same, and electric device having inorganic material-coated insulating coil and manufacturing thereof Method |
| CN102290209A (en) * | 2011-04-25 | 2011-12-21 | 济南特变电气有限公司 | Porcelain-sealed dry type transformer coil |
| JP2016048245A (en) * | 2010-12-09 | 2016-04-07 | ウエスチングハウス・エレクトリック・カンパニー・エルエルシー | Electric control rod drive mechanism device in nuclear reactor internal structure |
-
1992
- 1992-09-03 JP JP4235926A patent/JPH0684674A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004253233A (en) * | 2003-02-20 | 2004-09-09 | Daikin Ind Ltd | Inorganic powder-containing resin-coated electric wire, two-layer coated electric wire, inorganic powder-containing resin-coated coil, two-layer coated electric wire coil, inorganic material-coated insulating coil and method of manufacturing the same, and electric device having inorganic material-coated insulating coil and manufacturing thereof Method |
| JP2016048245A (en) * | 2010-12-09 | 2016-04-07 | ウエスチングハウス・エレクトリック・カンパニー・エルエルシー | Electric control rod drive mechanism device in nuclear reactor internal structure |
| CN102290209A (en) * | 2011-04-25 | 2011-12-21 | 济南特变电气有限公司 | Porcelain-sealed dry type transformer coil |
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