JPS63101594A - Bayonet joint for cryogenic piping - Google Patents
Bayonet joint for cryogenic pipingInfo
- Publication number
- JPS63101594A JPS63101594A JP61242950A JP24295086A JPS63101594A JP S63101594 A JPS63101594 A JP S63101594A JP 61242950 A JP61242950 A JP 61242950A JP 24295086 A JP24295086 A JP 24295086A JP S63101594 A JPS63101594 A JP S63101594A
- Authority
- JP
- Japan
- Prior art keywords
- bayonet
- male
- female
- flange
- cryogenic
- 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
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 description 16
- 239000012530 fluid Substances 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002990 reinforced plastic Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/18—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like adapted for joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/141—Arrangements for the insulation of pipes or pipe systems in which the temperature of the medium is below that of the ambient temperature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Thermal Insulation (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は極低温配管用バイオネット継手に係り、特に超
伝導マグネット容器などのように配管との間を電気的１
と絶縁する必要のある配管接続部に好適な極低温配管用
バイオネット継手に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bayonet joint for cryogenic piping.
This invention relates to a bayonet joint for cryogenic piping that is suitable for piping connections that need to be insulated.
従来は、特開昭５９−８３８９１号に記載のように、金
属製のフランジおよびバイオネット差込部がそのままで
、バイオネット差込部が差し込まれ、フランジがボルト
、ナツトで締め付けて取り付けられていた。Conventionally, as described in Japanese Patent Application Laid-Open No. 59-83891, the bayonet insertion part was inserted while the metal flange and bayonet insertion part remained as they were, and the flange was attached by tightening with bolts and nuts. Ta.
上記従来技術は、トランスファーチェーブでつないだ機
器間の絶縁の点について配慮がされておらず、超電導マ
グネット容器に漏電等が発生した場合に、バイオネット
継手を伝わって冷凍機本体に電流が流れ、この電流によ
って生じる磁場等の外乱化より、冷凍機を制御するため
の計器やセンサー等が異常作動する恐れがあるという問
題があった。The above conventional technology does not take into account the insulation between the devices connected by the transfer chain, and when a leakage occurs in the superconducting magnet container, current flows through the bayonet joint to the refrigerator body. There is a problem in that instruments, sensors, etc. for controlling the refrigerator may operate abnormally due to disturbances such as the magnetic field generated by this current.
本発明の目的は、機器と他の機器とをつなぐ極低温配管
ｌこおいて、両者を電気的化絶縁することのできる極低
温配管用バイオネット継手を提供することにある。An object of the present invention is to provide a bayonet joint for cryogenic piping that can electrically insulate equipment and other equipment from each other.
上記目的は、極低温配管用バイオネット継手の雄、雌両
バイオネットの金属部が接触しないように、フランジ部
およびバイオネット差込部に絶縁材を配設することによ
って達成される。The above object is achieved by disposing an insulating material on the flange portion and the bayonet insertion portion so that the metal portions of both the male and female bayonets of the bayonet joint for cryogenic piping do not come into contact with each other.
極低温配管用バイオネット継手のフランジ部およびバイ
オネット差込部ｊこ絶縁材を配設することＪこより、雄
、離開バイオネットの金属部の接触がなくなるので、機
器と他の機器とを電気的に絶縁することができる。Placing insulating material on the flange part and bayonet insertion part of the bayonet joint for cryogenic piping eliminates contact between the male and detachable bayonet metal parts, so there is no electrical connection between the equipment and other equipment. can be insulated.
以下、本発明の一実施例を第１図〜第３図により説明す
る。第１図は、極低温配管の雄側挿入管と真空断熱され
た機器の雌側ポート部との取合点を示す縦半断面図であ
る。An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 is a vertical half-sectional view showing the connection point between the male insertion tube of the cryogenic pipe and the female port of the vacuum-insulated device.
真空断熱層６により外部との断熱を行っている容器の上
蓋１に取付けられた極低温配管取付ポートは、ポート外
外管２．フランジ３．雌バイオネット４９機器内配管５
より成っており、極低温流体１９を内部に通している。The cryogenic piping attachment port attached to the upper lid 1 of the container, which is insulated from the outside by the vacuum insulation layer 6, is connected to the port outer tube 2. Flange 3. Female bayonet 49 equipment internal piping 5
The cryogenic fluid 19 is passed through the inside.
また、真空断熱層９により外部と断熱している配管の内
管８は、前記極低温流体１９を内部に通して移送してい
る。塩バイオネット７の外径は、雌バイオネット４の内
径より若干小さくなっており、外部よりの侵入熱が許容
値に入るのに必要な長さＬだけ、差込まれている。Further, the inner tube 8 of the piping, which is insulated from the outside by the vacuum insulation layer 9, transports the cryogenic fluid 19 through the inside. The outer diameter of the salt bayonet 7 is slightly smaller than the inner diameter of the female bayonet 4, and the salt bayonet 7 is inserted by a length L necessary for the intrusion heat from the outside to fall within an allowable value.
上述各部品は全て金属で製作１組立てられているため、
従来の場合には雄バイオネット側７ランジ１１と雌バイ
オネット側７ランジ３は、シール用Ｏリング１５を介し
てはいるものの、金属接触し電気的にも接続されている
と言える。All of the above-mentioned parts are manufactured and assembled from metal, so
In the conventional case, the male bayonet side 7 flange 11 and the female bayonet side 7 flange 3 are in metal contact and can be said to be electrically connected, although they are interposed via the sealing O-ring 15.
ところが本−実施例では、第１図に示すよう１こ塩バイ
オネット７のフランジ１１をスタブエンド１０を用いた
方式として、スタブエンド１０とフランジ１１との間に
電気絶縁材である強化プラスチックＦＲＰあるいは四弗
化エチレンなどのプラスチック材などを絶縁材スペーサ
１４として配設することによりフランジ１１，３間の絶
縁は確保できる。However, in this embodiment, as shown in FIG. 1, the stub end 10 is used as the flange 11 of the monosalt bayonet 7, and reinforced plastic FRP, which is an electrical insulating material, is used between the stub end 10 and the flange 11. Alternatively, the insulation between the flanges 11 and 3 can be ensured by disposing a plastic material such as tetrafluoroethylene as the insulating spacer 14.
また、雄、雌差込部においても、塩バイオネット７．４
の外径と、雌バイオネット４の内径の間に１か所以上（
本図では、先端部と根元部の２か所）の絶縁スペーサ１
７．１６を配設することにより雄、雌バイオネット７．
４間は完全に電気的に絶縁できる。Also, in the male and female insertion parts, Salt Bayonet 7.4
and the inner diameter of the female bayonet 4 at one or more places (
In this figure, there are two insulating spacers 1 (at the tip and at the base).
7.16 By arranging male and female bayonet 7.
4 can be completely electrically isolated.
なお、２ランジ１１，３のシール方式がＯリング１５を
用いず、シートガスケットなどを使用しても十分絶縁可
能である。この場合においても、雄。Note that even if the sealing method for the two flange 11, 3 does not use the O-ring 15 and uses a sheet gasket or the like, sufficient insulation can be achieved. In this case too, male.
雌バイオネットの巻込部での絶縁を確実にするため、絶
縁スペーサ１６．１７は併用するのが良い。Insulating spacers 16 and 17 are preferably used together to ensure insulation at the wound portion of the female bayonet.
本−実施例は、７ランジ側の絶縁材１４だけを配設する
場合においても、またバイオネット差込部の絶縁スペー
サ１６．１７およびこれに類するものを併用する場合も
共に有効である。This embodiment is effective both in the case where only the insulating material 14 on the 7-lunge side is provided and also in the case where the insulating spacers 16, 17 of the bayonet insertion part and the like are used together.
なお、雄、雌バイオネットのフランジ３，１１を締結す
るボルト１２．ナツト１３については、絶縁カラー１８
を介すか、または、樹脂コーティングなどを施した絶縁
ボルトあるいは強化プラスチックのボルトを利用するこ
とで絶縁可能である。In addition, the bolts 12. which fasten the flanges 3, 11 of the male and female bayonet. For nut 13, insulation collar 18
Insulation can be achieved by using insulating bolts coated with resin or reinforced plastic bolts.
以上、本−実施例によれば、磁性を嫌う容器、磁性が存
在しては困る容器などを取扱うライン化用いられる極低
温配管に有用である。すなわち、磁性を発する容器側で
、ノイズとなる磁性を絶縁できるという効果がある。As described above, the present embodiment is useful for cryogenic piping used in lines that handle containers that do not like magnetism, containers that do not want the presence of magnetism, and the like. That is, there is an effect that the magnetism that causes noise can be insulated on the side of the container that emits magnetism.
次に、本発明の他の実施例を第４図〜第５図により説明
する。第１図は、極低温配管の雄側挿入管と真空断熱さ
れた機器の雌側ポート部との取合を示す縦半断面図であ
る。Next, another embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG. 1 is a vertical half-sectional view showing the connection between the male insertion tube of the cryogenic piping and the female port of the vacuum-insulated device.
雌側ポートは、真空断熱層６Ｉこより外部より断熱され
ている機器容器の上蓋１に取付けられており、ポート外
外管２．フランジ３．雌バイオネット４および極低温流
体１９を通す機器内配管５より成っている。The female side port is attached to the upper lid 1 of the equipment container, which is insulated from the outside through a vacuum insulation layer 6I, and the outer port outer tube 2. Flange 3. It consists of a female bayonet 4 and internal piping 5 through which cryogenic fluid 19 passes.
雄側挿入管は、外管２１と極低温流体１９を流す内管２
５により真空断熱層２６を形成し、外部と断熱する極低
温配管の先端部にあり、雄バイオネット詔と内管２５と
フランジ２２より成っている。塩バイオネット２３と内
管あの画先端部は真空断熱層２６を形成するためのメク
ラスリーブ２４が取付けられている。The male side insertion tube includes an outer tube 21 and an inner tube 2 through which cryogenic fluid 19 flows.
5 forms a vacuum insulation layer 26, which is located at the tip of the cryogenic pipe that is insulated from the outside, and consists of a male bayonet collar, an inner pipe 25, and a flange 22. A blind sleeve 24 for forming a vacuum insulation layer 26 is attached to the tip of the salt bayonet 23 and the inner tube.
上記の部品は全て金属で製作１組立てられている為、通
常の場合、雄バイオネット側７ランジ２２と雌バイオネ
ット側フランジ３はシール用０リング１５を介してはい
るものの、金属接触し電気的にも接続されていると言え
る。また、雄側バイオネット２３と雌バイオネット４は
、対流を防止できて、接触しない程度の隙間を有してお
り、軸方向の侵入熱を許容値以内にするため、各々の挿
入長さをＬとしている。この挿入長さＬの全長にわたり
雄バイオネット２３と雌バイオネット４の隙間を常に保
つことは管口径が細くなるにつれ困難になり、剛性の弱
いものにおいては接触することがある。All of the above parts are manufactured and assembled from metal, so in normal cases, the male bayonet side 7 flange 22 and the female bayonet side flange 3 are in metal contact and electrically It can be said that they are also connected. In addition, the male bayonet 23 and the female bayonet 4 have a gap that prevents convection and does not allow them to come into contact with each other, and in order to keep the intrusion heat in the axial direction within the allowable value, the insertion length of each is adjusted. It is set to L. It becomes difficult to maintain a gap between the male bayonet 23 and the female bayonet 4 over the entire insertion length L as the pipe diameter becomes smaller, and if the tube diameter is weak, they may come into contact.
本発明は、雄バイオネット２３と雌バイオネット４の電
気的絶縁を可能にするものであり、まず、雄バイオネッ
ト２３の外側に雄バイオネット２３の外径より少し大き
い内径のテフロン等の絶縁チューブ３１を雄バイオネッ
ト２３の全面をおおうように取付ける。これは、雄バイ
オネット２３の外壁と雌バイオネット４の内壁が接触す
るのを防止するためのものであり、雄バイオネット２３
と絶縁チューブ３１との隙間は、極低温流体を流したと
きの寒冷により絶縁チューブ３１が収縮破損するのを防
止するためのものである。The present invention makes it possible to electrically insulate the male bayonet 23 and the female bayonet 4. First, an insulating material such as Teflon having an inner diameter slightly larger than the outer diameter of the male bayonet 23 is placed on the outside of the male bayonet 23. The tube 31 is attached so as to cover the entire surface of the male bayonet 23. This is to prevent the outer wall of the male bayonet 23 and the inner wall of the female bayonet 4 from coming into contact with each other.
The gap between the insulating tube 31 and the insulating tube 31 is provided to prevent the insulating tube 31 from being shrunk and damaged due to the cold caused by flowing the cryogenic fluid.
次に雄側の先端にストッパ３０を取付ける。これは、本
バイオネット継手の着脱時に絶縁チューブ３１がズした
り脱落したりするのを防止し、さらに、雄側先端部が雌
側ボートの雌バイオネット４の底と接触するのを防止す
るためのものであり、絶縁チューブ３１と同じくテフロ
ン等の絶縁材でできている。又、このストッパ３０自身
の脱落を防止するため、雄側先端のメクラスリーブ２４
に溝３４を付け、その溝あに固定するようにした。メク
ラスリーブ２４への取付は、ストッパ３０に１本の切目
を入れることにより可能である。Next, a stopper 30 is attached to the male end. This prevents the insulating tube 31 from slipping or falling off when the present bayonet joint is attached or detached, and also prevents the male end from coming into contact with the bottom of the female bayonet 4 of the female boat. Like the insulating tube 31, it is made of an insulating material such as Teflon. In addition, in order to prevent the stopper 30 itself from falling off, the blind sleeve 24 at the male end
A groove 34 is provided in the groove 34, and the device is fixed in the groove. Attachment to the blind sleeve 24 is possible by making one cut in the stopper 30.
また、フランジ部シート面の絶縁は、雄バイオネット側
フランジ２２と雌バイオネット側フランジ３との間に絶
縁シートガスケット３２をはさんで、両フランジ２２お
よび３を絶縁座３３、座２９を介してボルト２７とナツ
ト詔とで締め付けて取り付けた構造となっている。In addition, the insulation of the seat surface of the flange portion is achieved by sandwiching an insulating sheet gasket 32 between the male bayonet side flange 22 and the female bayonet side flange 3, and connecting both flanges 22 and 3 with an insulating seat 33 and a seat 29. It has a structure in which it is attached by tightening it with bolts 27 and nuts.
以上、本地の実施例によれば、前記一実施例と同様の効
果があるとともに、小型のもので、雄側挿入管および雌
側ポートの製作歪があったり、剛性が弱く曲り等発生し
た場合においても、挿入部の金属どうしの接触を完全に
防止でき、安定した電気的絶縁の確保に効果がある。As described above, according to the present embodiment, it has the same effect as the above-mentioned embodiment, and is small in size, and even if the male side insertion tube and the female side port have manufacturing distortion or are weak in rigidity and bending etc. Even in this case, it is possible to completely prevent metals in the insertion portion from coming into contact with each other, which is effective in ensuring stable electrical insulation.
本発明によれば、機器と他の機器とをつなぐ極低温配管
において、フランジ部およびバイオネット差込部を電気
的に絶縁できるという効果がある。According to the present invention, there is an effect that the flange portion and the bayonet insertion portion can be electrically insulated in cryogenic piping that connects equipment and other equipment.
第１図は本発明の極低温配管用バイオネット継手の一実
施例を示す縦半断面図、第２図は第１図のＡ部詳細図、
第３図は第１図のＢ部詳細図、第４図は本発明の極低温
配管用バイオネット継手の他の実施例を示す縦半断面図
、第５図は第４図のＣ部詳細図、第６図は第４図のＤ部
詳細図である。
３．１１および２２・・・・・・フランジ、４・・・・
・・雌バイオネット、７．２３・・・・・・雄バイオネ
ット、１０・・・・・・スタブエンド、１４．１６およ
び１７・・・・・・絶縁スペーサ、１８・・・・・・絶
縁カラー、３０・・・・・・ストッパ、３１・・・・・
・絶縁チューブ、３２・・・・・・絶縁シートガスケッ
ト、３３・・・・・・絶才４図
オ６図FIG. 1 is a vertical half-sectional view showing an embodiment of the bayonet joint for cryogenic piping of the present invention, FIG. 2 is a detailed view of section A in FIG. 1,
Fig. 3 is a detailed view of section B in Fig. 1, Fig. 4 is a vertical half-sectional view showing another embodiment of the bayonet joint for cryogenic piping of the present invention, and Fig. 5 is a detailed view of section C in Fig. 4. FIG. 6 is a detailed view of section D in FIG. 4. 3.11 and 22...flange, 4...
... Female bayonet, 7.23 ... Male bayonet, 10 ... Stub end, 14.16 and 17 ... Insulation spacer, 18 ... Insulation collar, 30... Stopper, 31...
・Insulation tube, 32...Insulation sheet gasket, 33...Excellent figure 4 O figure 6
Claims (1)
低温配管用バイオネット継手において、前記両バイオネ
ットの金属部が接触しないようにフランジ部およびバイ
オネット差込部に絶縁材を配設したことを特徴とする極
低温配管用バイオネット継手。1. In a bayonet joint for cryogenic piping consisting of a combination of male and female bayonets, an insulating material is provided at the flange part and the bayonet insertion part so that the metal parts of both bayonets do not come into contact with each other. A bayonet fitting for cryogenic piping characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61242950A JPS63101594A (en) | 1986-10-15 | 1986-10-15 | Bayonet joint for cryogenic piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61242950A JPS63101594A (en) | 1986-10-15 | 1986-10-15 | Bayonet joint for cryogenic piping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63101594A true JPS63101594A (en) | 1988-05-06 |
Family
ID=17096634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61242950A Pending JPS63101594A (en) | 1986-10-15 | 1986-10-15 | Bayonet joint for cryogenic piping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63101594A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003113973A (en) * | 2001-10-02 | 2003-04-18 | Natl Space Development Agency Of Japan | Very low temperature piping joint |
| WO2016051770A1 (en) * | 2014-09-30 | 2016-04-07 | 川崎重工業株式会社 | Guide mechanism for bayonet joint in vacuum-insulated double-walled pipe for low-temperature fluid |
| WO2016171144A1 (en) * | 2015-04-24 | 2016-10-27 | 古河電気工業株式会社 | Double pipe |
| WO2017179530A1 (en) * | 2016-04-11 | 2017-10-19 | 川崎重工業株式会社 | Coupling structure |
| JP2018021594A (en) * | 2016-08-03 | 2018-02-08 | 大陽日酸株式会社 | Bayonet joint |
-
1986
- 1986-10-15 JP JP61242950A patent/JPS63101594A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003113973A (en) * | 2001-10-02 | 2003-04-18 | Natl Space Development Agency Of Japan | Very low temperature piping joint |
| WO2016051770A1 (en) * | 2014-09-30 | 2016-04-07 | 川崎重工業株式会社 | Guide mechanism for bayonet joint in vacuum-insulated double-walled pipe for low-temperature fluid |
| WO2016171144A1 (en) * | 2015-04-24 | 2016-10-27 | 古河電気工業株式会社 | Double pipe |
| US10458592B2 (en) | 2015-04-24 | 2019-10-29 | Furukawa Electric Co., Ltd. | Double tube |
| WO2017179530A1 (en) * | 2016-04-11 | 2017-10-19 | 川崎重工業株式会社 | Coupling structure |
| CN108884958A (en) * | 2016-04-11 | 2018-11-23 | 川崎重工业株式会社 | Joint construction |
| JP2018021594A (en) * | 2016-08-03 | 2018-02-08 | 大陽日酸株式会社 | Bayonet joint |
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