JPS631549Y2 - - Google Patents
Info
- Publication number
- JPS631549Y2 JPS631549Y2 JP14171781U JP14171781U JPS631549Y2 JP S631549 Y2 JPS631549 Y2 JP S631549Y2 JP 14171781 U JP14171781 U JP 14171781U JP 14171781 U JP14171781 U JP 14171781U JP S631549 Y2 JPS631549 Y2 JP S631549Y2
- Authority
- JP
- Japan
- Prior art keywords
- sheath
- tube
- filter member
- large diameter
- insulating spacer
- 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.)
- Expired
Links
- 125000006850 spacer group Chemical group 0.000 claims description 22
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 description 18
- 238000012856 packing Methods 0.000 description 6
- 239000000356 contaminant Substances 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
- Installation Of Bus-Bars (AREA)
Description
【考案の詳細な説明】
本考案は管路気中ケーブルの如きガス絶縁母線
におけるシース管に対する絶縁スペーサ取付部に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insulating spacer mounting portion for a sheath tube in a gas insulated bus bar such as a conduit aerial cable.
従来のガス絶縁母線における絶縁スペーサ取付
部は、第１図に示すように第１のシース管１の端
部にソケツト状の大径管部２が溶接部３を介して
取付けられ、第２のシース管４の端部につば部５
が溶接部６を介して取付けられている。大径管部
２の中には絶縁スペーサ７が挿入され、その次に
フランジ部５が挿入されて絶縁スペーサ７の外周
部は大径管部２の立上り部分２Ａとつば部５とで
挾持されている。大径管部２内の第２のシース管
４の外周にはつば部５に当接するようにＯリング
の如きパツキン８が嵌合され、このパツキン８を
押すように大径管部２と第２のシース管４との間
に押し輪９が挿入され、パツキン８を圧縮した状
態で大径管部２と押し輪９及び押し輪９と第２の
シース管４とが溶接部１０，１１で気密に溶接接
続されている。また、溶接部１０，１１の気密性
を確認するためにパツキン８の位置と溶接部１０
との間の大径管部２には気密確認用タツプ孔１２
が設けられている。 As shown in FIG. 1, the insulating spacer attachment part of a conventional gas insulated busbar has a socket-shaped large-diameter tube part 2 attached to the end of a first sheath tube 1 via a welded part 3, and a second A collar 5 is attached to the end of the sheath tube 4.
is attached via a weld 6. The insulating spacer 7 is inserted into the large-diameter tube section 2, and then the flange section 5 is inserted, and the outer circumference of the insulating spacer 7 is sandwiched between the rising portion 2A of the large-diameter tube section 2 and the collar section 5. ing. A gasket 8 such as an O-ring is fitted onto the outer periphery of the second sheath tube 4 inside the large diameter tube section 2 so as to abut against the collar 5. A pushing ring 9 is inserted between the second sheath tube 4 and the large diameter tube part 2 and the second sheath tube 4 are welded at welded parts 10 and 11 with the packing 8 compressed. and are hermetically welded together. In addition, in order to confirm the airtightness of the welded parts 10 and 11, the position of the packing 8 and the welded part 10 are
There is a tap hole 12 for checking airtightness in the large diameter pipe section 2 between the
is provided.
このような絶縁スペーサ取付部においては、パ
ツキン８をつば部５と押し輪９とで締付けている
ので、溶接時の金属粉やカーボン等の汚損物はシ
ース管１，４内に侵入しない。また、溶接部１
０，１１の気密確認は、パツキン８と溶接部１
０，１１との間の密閉された空間にタツプ孔１２
より気体を高圧力で封入して溶接部１０，１１か
ら気体の漏洩がないことを確認することにより行
なう。溶接部１０，１１に欠陥のないことが確認
されたら、タツプ孔１２を溶接により密封する。 In such an insulating spacer mounting portion, the packing 8 is tightened by the collar portion 5 and the push ring 9, so that contaminants such as metal powder and carbon during welding do not enter the sheath tubes 1 and 4. In addition, welded part 1
0 and 11 airtightness check is done on packing 8 and welded part 1.
Tap hole 12 in the sealed space between 0 and 11
This is done by sealing in gas at a higher pressure and confirming that there is no leakage of gas from the welded parts 10 and 11. When it is confirmed that there are no defects in the welded parts 10 and 11, the tap hole 12 is sealed by welding.
しかしながら、このような絶縁スペーサ取付部
では、パツキン８を使用しいるので、その圧縮の
ために構造が複雑になり、コスト高になる欠点が
ある。また、このような構造では、タツプ孔１２
を最終的に埋め戻した溶接箇所の気密確認ができ
ない欠点がある。更に、タツプ孔１２をあけない
場合には、溶接部１０，１１のうち、後から溶接
が行われる溶接部１０又は１１の溶接が終りに近
づいたとき、パツキン８と溶接部１０，１１との
間の間隙の内圧が溶接熱で高まり、空気が吹き出
すので、最後の溶接が行いにくくなる欠点があ
る。 However, since the packing 8 is used in such an insulating spacer mounting portion, the structure is complicated due to its compression, and the cost is high. In addition, in such a structure, the tap hole 12
There is a drawback that it is not possible to check the airtightness of the welded parts that are finally backfilled. Furthermore, if the tap hole 12 is not drilled, when the welding of the welding part 10 or 11, which will be welded later, approaches the end, the seal 8 and the welding part 10, 11 will be welded. The internal pressure in the gap increases due to welding heat, and air blows out, making it difficult to perform the final welding.
本考案の目的は、パツキンを使用しなくても溶
接時の汚損物のシース管内への侵入を防止でき、
しかも溶接熱による内圧の上昇を防止しつつ溶接
が行え、且つ気密確認も確実に行なえるガス絶縁
母線の絶縁スペーサ取付部を提供するにある。 The purpose of this invention is to prevent contaminants from entering the sheath pipe during welding without using a packing.
Moreover, it is an object of the present invention to provide an insulating spacer mounting portion for a gas insulated bus bar, which allows welding to be performed while preventing an increase in internal pressure due to welding heat, and also allows reliable airtightness confirmation.
本考案は双方のシース管の端部が向い合せに配
置され、一方の前記シース管の端部には大径管部
が設けられ、前記大径管部内に絶縁スペーサが配
置され、前記絶縁スペーサは前記大径管部の立上
り部分と他方の前記シース管の端部とで挟持さ
れ、前記大径管部の先端と前記他方のシース管と
は気密に溶接されて密封されているガス絶縁母線
の絶縁スペーサ取付部おいて、前記大径管部と前
記他方のシース管との間隙にフイルタ部材が圧縮
状態で介在されていることを特徴とする。 In the present invention, the ends of both sheath tubes are arranged to face each other, a large diameter tube section is provided at the end of one of the sheath tubes, an insulating spacer is arranged within the large diameter tube section, and the insulating spacer is a gas insulated bus bar which is sandwiched between a rising portion of the large diameter tube section and an end of the other sheath tube, and the tip of the large diameter tube section and the other sheath tube are hermetically welded and sealed. In the insulating spacer mounting portion, a filter member is interposed in a compressed state in the gap between the large diameter tube portion and the other sheath tube.
以下本考案の実施例を図面を参照して詳細に説
明する。第２図に示すように本実施例のガス絶縁
母線の絶縁スペーサ取付部においては、第１のシ
ース管１の端部にソケツト状の大径管部２が溶接
部３を介して設けられている。この大径管部２内
には絶縁スペーサ７が挿入され、その後から第２
のシース管４の先端部が挿入されている。絶縁ス
ペーサ７の外周部は大径管部２の立上り部分２Ａ
と第２のシース管４の先端とで挾持されている。
大径管部２と第２のシース管４との間の間隙１３
にはフイルタ部材１４が圧縮状態で介在されてい
る。大径管部２の端部と第２のシース管４とは溶
接部１５で気密に溶接接続されている。フイルタ
部材１４としては電気絶縁性であつて且つ耐熱性
の良好な例えばテトラフルオロエチレン繊維を交
差させた弾力性のあるものを用いる。このような
フイルタ部材１４は、挿入前は第３図Ａに示すよ
うに間隙１３の幅より厚い寸法をもつものであつ
て、間隙１３に挿入されると圧縮されて第３図Ｂ
に示すように薄くなる。フイルタ部材１４は、第
２のシース管４を大径管部２内に挿入した後で両
者の間隙１３に押し込んでもよいし、或は予め第
２のシース管４の外周に接着しておいて第２のシ
ース管４の挿入時に一緒に挿入してもよい。 Embodiments of the present invention will be described in detail below with reference to the drawings. As shown in FIG. 2, in the insulating spacer attachment part of the gas insulated bus bar of this embodiment, a socket-shaped large diameter pipe part 2 is provided at the end of the first sheath pipe 1 via a welded part 3. There is. An insulating spacer 7 is inserted into this large diameter pipe portion 2, and a second
The distal end of the sheath tube 4 is inserted. The outer peripheral part of the insulating spacer 7 is the rising part 2A of the large diameter pipe part 2
and the tip of the second sheath tube 4.
Gap 13 between large diameter tube section 2 and second sheath tube 4
A filter member 14 is interposed in a compressed state. The end of the large-diameter tube portion 2 and the second sheath tube 4 are welded together at a welded portion 15 in an airtight manner. The filter member 14 is made of an elastic material that is electrically insulating and has good heat resistance, such as crossed tetrafluoroethylene fibers. Before insertion, the filter member 14 has a dimension that is thicker than the width of the gap 13 as shown in FIG.
It becomes thinner as shown in . The filter member 14 may be inserted into the gap 13 between the second sheath tube 4 and the large diameter tube section 2, or may be adhered to the outer periphery of the second sheath tube 4 in advance. It may be inserted together when the second sheath tube 4 is inserted.
このような絶縁スペーサ取付部においては、フ
イルタ部材１４の目の大きさを適切に選定するこ
とにより、溶接時の金属粉やカーボン等の汚損物
は総てフイルタ部材１４でトラツプされるので、
これら汚損物がシース管１，４内に侵入するのを
阻止することができる。 In such an insulating spacer attachment part, by appropriately selecting the mesh size of the filter member 14, all contaminants such as metal powder and carbon during welding can be trapped by the filter member 14.
These contaminants can be prevented from entering the sheath tubes 1 and 4.
また、溶接部１５の気密確認は、線路全体の竣
工試験時にシース管１，４内に実使用圧力より高
い試験圧力（通常、最高使用圧力×1.25）が印加
され、この圧力がフイルタ部材１４の目を通つて
フイルタ部材１４と溶接部１５との間に伝達され
るので、この圧力により溶接部１５の欠陥の有無
の確認を行なうことができる。 In addition, to check the airtightness of the welded part 15, a test pressure higher than the actual working pressure (usually maximum working pressure x 1.25) is applied to the sheath pipes 1 and 4 during the completion test of the entire line, and this pressure is applied to the filter member 14. Since the pressure is transmitted between the filter member 14 and the welded portion 15 through the eye, the presence or absence of defects in the welded portion 15 can be confirmed by this pressure.
第４図は第２のシース管４の外周にフイルタ部
材１４を接着する場合の例を示したものである。
即ち、本実施例ではフイルタ部材１４を片面接着
テープ１６のテープ層１６ａ上に接着剤等で予め
接着しておき、この片面接着テープ１６の粘着層
１６ｂを第２のシース管４に接着することにより
フイルタ部材１４を第２のシース管４に接着する
例を示したものである。 FIG. 4 shows an example in which the filter member 14 is bonded to the outer periphery of the second sheath tube 4. As shown in FIG.
That is, in this embodiment, the filter member 14 is adhered in advance to the tape layer 16a of the single-sided adhesive tape 16 with an adhesive or the like, and the adhesive layer 16b of the single-sided adhesive tape 16 is adhered to the second sheath tube 4. This figure shows an example in which the filter member 14 is bonded to the second sheath tube 4 by using the following method.
第５図は先端外周にフイルタ部材１４を第４図
に示すようにして取付た第２のシース管４を大径
管部２内に挿入した状態を示したものである。 FIG. 5 shows a state in which the second sheath tube 4, which has a filter member 14 attached to the outer periphery of the distal end as shown in FIG. 4, is inserted into the large diameter tube portion 2.
以上説明したように本考案に係るガス絶縁母線
の絶縁スペーサ取付部は、大径管部とシース管と
の間の間隙にフイルタ部材を圧縮状態で介在させ
たので、溶接時に汚損物がシース管内に入るのを
このフイルタ部で阻止できることは勿論である
が、次のような効果を合わせて得ることができ
る。 As explained above, in the insulating spacer attachment part of the gas insulated bus bar according to the present invention, the filter member is interposed in a compressed state in the gap between the large diameter pipe part and the sheath pipe, so that contaminants are not contained in the sheath pipe during welding. Of course, this filter section can prevent the entry of foreign substances, but the following effects can also be obtained.
(イ) フイルタ部材は通気性を有するので、シース
管内に圧力をかけることにより、該圧力をフイ
ルタ部材を介して各溶接部へかけることがで
き、従つてタツプ孔を用いないでも総ての溶接
部の気密確認を一度の与圧で行うことができ
る。(b) Since the filter member has air permeability, by applying pressure inside the sheath pipe, that pressure can be applied to each welding part through the filter member, and therefore all welding can be performed without using tap holes. The airtightness of the area can be checked with one pressurization.
(ロ) 大径管部と他方のシース管との溶接時には、
溶接熱によるフアイルタ部材と溶接部との間の
間隙の内圧の上昇が、該フイルタ部材を通して
シース管内へ放圧されることにより防止される
ので、溶接部の最後の溶接時に空気が吹き出す
ことがなく、支障なく最後の溶接を行うことが
できる。(b) When welding the large diameter pipe and the other sheath pipe,
An increase in the internal pressure in the gap between the filter member and the welded part due to welding heat is prevented by releasing the pressure into the sheath pipe through the filter member, so air does not blow out during the final welding of the welded part. , the final welding can be carried out without any problems.
(ハ) フイルタ部材をそのクツシヨン作用を利用し
て圧縮状態にして介在させているので、押し輪
が不要になる。(c) Since the filter member is interposed in a compressed state using its cushioning action, a push ring is not required.
(ニ) シース管の加工が簡単になる。(d) Processing of the sheath pipe becomes easier.
(ホ) 治具を用いてパツキンを締付ける作業が不要
になり、現場作業が早くなる。(e) It becomes unnecessary to use a jig to tighten the gaskets, which speeds up on-site work.
第１図は従来の絶縁スペーサ取付部の要部縦断
面図、第２図は本考案に係る絶縁スペーサ取付部
の一実施例を示す要部縦断面図、第３図Ａ，Ｂは
本実施例で用いているフイルタ部材の挿入前の状
態と挿入後の状態の斜視図、第４図はフイルタ部
材を第２のシース管に接着テープで装着した状態
の要部縦断面図、第５図は第４図に示す第２のシ
ース管を大径管部に挿入した状態の要部縦断面図
である。
１……第１のシース管、２……大径管部、３，
１５……溶接部、４……第２のシース管、７……
絶縁スペーサ、１３……間隙、１４……フイルタ
部材。
Fig. 1 is a longitudinal cross-sectional view of a main part of a conventional insulating spacer mounting part, Fig. 2 is a longitudinal cross-sectional view of a main part showing an embodiment of an insulating spacer mounting part according to the present invention, and Fig. 3 A and B are a longitudinal cross-sectional view of a main part of a conventional insulating spacer mounting part. FIG. 4 is a perspective view of the filter member used in the example before and after insertion; FIG. 4 is a longitudinal sectional view of the main part of the filter member attached to the second sheath tube with adhesive tape; FIG. 5 FIG. 5 is a vertical cross-sectional view of the main part of the second sheath tube shown in FIG. 4 inserted into the large diameter tube section. DESCRIPTION OF SYMBOLS 1...First sheath pipe, 2...Large diameter pipe part, 3,
15... Welded part, 4... Second sheath pipe, 7...
Insulating spacer, 13... gap, 14... filter member.
Claims (1)
一方の前記シース管の端部には大径管部が設けら
れ、前記大径管部内に絶縁スペーサが配置され、
前記絶縁スペーサは前記大径管部の立上り部分と
他方の前記シース管の端部とで挟持され、前記大
径管部の先端と前記他方のシース管とは気密に溶
接されて密封されているガス絶縁母線の絶縁スペ
ーサ取付部において、前記大径管部と前記他方の
シース管との間隙にフイルタ部材が圧縮状態で介
在されていることを特徴とするガス絶縁母線の絶
縁スペーサ取付部。 The ends of both sheath tubes are arranged facing each other,
A large-diameter tube portion is provided at an end of one of the sheath tubes, and an insulating spacer is disposed within the large-diameter tube portion;
The insulating spacer is sandwiched between the rising portion of the large diameter tube and the other end of the sheath tube, and the tip of the large diameter tube and the other sheath tube are hermetically welded and sealed. An insulated spacer attachment portion for a gas insulated bus bar, wherein a filter member is interposed in a compressed state in a gap between the large diameter tube portion and the other sheath tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14171781U JPS5846220U (en) | 1981-09-24 | 1981-09-24 | Insulation spacer mounting part of gas insulated bus bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14171781U JPS5846220U (en) | 1981-09-24 | 1981-09-24 | Insulation spacer mounting part of gas insulated bus bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5846220U JPS5846220U (en) | 1983-03-29 |
| JPS631549Y2 true JPS631549Y2 (en) | 1988-01-14 |
Family
ID=29934791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14171781U Granted JPS5846220U (en) | 1981-09-24 | 1981-09-24 | Insulation spacer mounting part of gas insulated bus bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5846220U (en) |
-
1981
- 1981-09-24 JP JP14171781U patent/JPS5846220U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5846220U (en) | 1983-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5338070A (en) | Diameter-reducing member joint device | |
| US3949596A (en) | Leak test fixture and method for using same | |
| CN210603768U (en) | Helium mass spectrometer leak detection device for butt weld of pipe and tube | |
| JPS631549Y2 (en) | ||
| JPH09133603A (en) | Method and apparatus for inspection of airtightness of composite insulating tube | |
| JP5148798B2 (en) | Sealing socket and how to attach it to the tube | |
| JPS626819Y2 (en) | ||
| JPS6027370B2 (en) | Airtightness inspection method for plastic pipe terminal connections | |
| JPH0311518Y2 (en) | ||
| JP3393984B2 (en) | Welding plug airtightness test equipment | |
| JPS6032422B2 (en) | Metal sheath connection method for aerial cables | |
| JPH10116530A (en) | Double sealed terminal header | |
| JPS6145693Y2 (en) | ||
| JPH07293763A (en) | Pipe body connecting structure | |
| JPS6234070Y2 (en) | ||
| JPS61273115A (en) | Cable piercing section for nuclear reactor housing equipment | |
| KR100701848B1 (en) | Heat insulating attachments for a conduit pipe | |
| JP2860355B2 (en) | Sealing device at branch connection of gas conduit | |
| JPS58360Y2 (en) | Gas-filled cable connection mechanism | |
| KR960010290Y1 (en) | Pipe joints | |
| JPS5825010B2 (en) | Flexible conduit gas-filled cable sheath connection | |
| JPH0710704U (en) | Connection of metal tube with plastic coated filament | |
| JP3128327B2 (en) | Leak test equipment for reactor containment pipe penetration | |
| JPS62233585A (en) | Composite pipe | |
| JP2656420B2 (en) | How to join branch pipes |