JPH0336781Y2 - - Google Patents
Info
- Publication number
- JPH0336781Y2 JPH0336781Y2 JP1985027795U JP2779585U JPH0336781Y2 JP H0336781 Y2 JPH0336781 Y2 JP H0336781Y2 JP 1985027795 U JP1985027795 U JP 1985027795U JP 2779585 U JP2779585 U JP 2779585U JP H0336781 Y2 JPH0336781 Y2 JP H0336781Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- pipe
- outer tube
- divided
- bellows
- 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
- 238000000034 method Methods 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 19
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 229910052708 sodium Inorganic materials 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- 238000005070 sampling Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 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
Landscapes
- Supports For Pipes And Cables (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
本考案は高温流体輸送用二重管に係わり、特
に、高速増殖炉プラントにおける液体ナトリウム
等の流体を取り扱う管に好適な二重管に関する。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a double pipe for transporting high-temperature fluids, and particularly to a double pipe suitable for handling fluids such as liquid sodium in fast breeder reactor plants.
「従来の技術及びその問題点」
一般に、高速増殖炉プラントにおける液体ナト
リウム等の流体を取り扱う管にあつては、万一管
から流体が漏洩した場合に、その検出を容易にし
て、漏洩流体が微少なうちに阻止することが必要
とされている。"Prior art and its problems" In general, in the case of pipes that handle fluids such as liquid sodium in fast breeder reactor plants, in the event that fluid leaks from the pipe, it is easy to detect and prevent the leaking fluid from occurring. It is necessary to prevent it while it is still small.
そこで、従来では、液体ナトリウム輸送用プロ
セス管の回りを内装板により覆つて内装板外側に
保温施工し、プロセス間と内装板との間からサン
プリングすることにより漏洩の検出を行なうとと
もに、床、壁、天井等にライナを貼付して、漏洩
流体が内装板の間を通つて流出した場合の火災の
発生を抑制するようにしている。 Therefore, in the past, the process pipe for transporting liquid sodium was covered with an interior board, and heat was insulated on the outside of the interior board, and leaks were detected by sampling from between the processes and between the interior board, and A liner is attached to the ceiling or the like to prevent a fire from occurring if leaked fluid flows out between the interior panels.
しかしながら、このような構断であると、配管
にともなつてその周囲の床、壁、天井等にライナ
を配設する必要が生じて、配設構造が複雑になる
という問題点がある。 However, with such a structure, there is a problem that liners must be provided on the floor, wall, ceiling, etc. around the piping, making the arrangement structure complicated.
「考案の目的及びその達成手段」
本考案は前記問題点を有効に解決して、配設構
造を簡略化するとともに、高速増殖炉プラントの
液体ナトリウム等の高温流体を輸送する場合の健
全性を高めることを目的とするもので、プロセス
管の回りに、管軸方向に間隔をおいて複数に分割
されるとともにその分割部分が相互にベローズに
より連結された外管を設け、該外管の分割部分の
一つに、これを固定状態に支持するリジツトサポ
ートを設け、かつ、他の分割部分に、プロセス管
と一体のスナツバを設けたことを特徴として、プ
ロセス管からの万一の流体漏洩時に漏洩流体を外
管により密閉して、該外管により前記従来例にお
けるライナの代用をさせるとともに、プロセス管
と外管とをベローズを介して別個に支持する如く
して、これらの間の熱伸縮差をベローズおよびス
ナツバにより吸収するようにしたものである。"Purpose of the invention and means for achieving the same" The present invention effectively solves the above-mentioned problems, simplifies the installation structure, and improves the integrity of transporting high-temperature fluids such as liquid sodium in fast breeder reactor plants. The purpose of this method is to provide an outer tube around the process tube that is divided into a plurality of parts at intervals in the tube axis direction, and the divided parts are connected to each other by bellows. One of the parts is equipped with a rigid support to support it in a fixed state, and the other divided part is equipped with a snubber that is integrated with the process pipe, which prevents fluid from leaking from the process pipe. At times, the leaked fluid is sealed by the outer tube, and the outer tube is used in place of the liner in the conventional example, and the process tube and the outer tube are separately supported via bellows to reduce heat between them. The difference in expansion and contraction is absorbed by the bellows and snap flap.
「実施例」
以下、本考案が適用された高速増殖炉の液体ナ
トリウム輸送管の実施例について第１図および第
２図を参照して説明する。"Example" Hereinafter, an example of a liquid sodium transport pipe for a fast breeder reactor to which the present invention is applied will be described with reference to FIGS. 1 and 2.
第１図は本考案の一実施例を示すもので、流体
輸送用プロセス管１の回りに、管軸方向に間隔を
おいて複数に分割されるとともにその分割部分
Ａ・Ｂ・Ｃ…がベローズ２により相互に連結され
てなる外管３が設けられた二重管構造とされてい
る。そして、該外管３に、その分割部分の一つ、
第１図では分割部分Ｃをその近傍の構造物４に固
定するリジツトサポート５が一体に設けられ、か
つ、該リジツトサポート５からベローズ２を介し
て離間した他の分割部分Ｂに、プロセス管１と一
体のクランプ６が設けられ、該クランプ６に、こ
れを近傍の構造物７にその間の相対移動を許容し
た状態に支持するスナツバ８が設けられたもので
ある。また、プロセス管１と外管３との間のリン
グ状空間９には、断熱材１０がプロセス管１の外
周部を覆うように設けられるとともに、窒素等の
不活性ガスが封入されている。そして、該リング
状空間９に連通されるサンプリング管１１が前記
外管３に連結され、該サンプリング管１１を経由
して前記不活性ガスが循環させられるようになつ
ている。なお、断熱材１０の中にはプロセス管１
に巻き付けられた取り付け用バンド１２を介して
予熱ヒータ１３が設けられる。 FIG. 1 shows an embodiment of the present invention, in which a fluid transport process tube 1 is divided into a plurality of parts at intervals in the pipe axis direction, and the divided parts A, B, C, etc. are bellows. It has a double tube structure including outer tubes 3 which are interconnected by tubes 2 and 3. Then, in the outer tube 3, one of the divided parts,
In FIG. 1, a rigid support 5 for fixing a divided part C to a structure 4 in the vicinity is provided integrally, and another divided part B separated from the rigid support 5 via a bellows 2 is provided with a process. A clamp 6 is provided integrally with the pipe 1, and a snubber 8 is provided on the clamp 6 to support the clamp 6 on a nearby structure 7 while allowing relative movement therebetween. Further, in the ring-shaped space 9 between the process tube 1 and the outer tube 3, a heat insulating material 10 is provided so as to cover the outer circumference of the process tube 1, and an inert gas such as nitrogen is filled. A sampling tube 11 communicating with the ring-shaped space 9 is connected to the outer tube 3, and the inert gas is circulated through the sampling tube 11. Note that the process pipe 1 is inside the heat insulating material 10.
A preheater 13 is provided via an attachment band 12 wrapped around the.
このような構造とすることにより、プロセス管
１から万一流体が漏洩した場合に、漏洩流体を外
管３によりリング状空間９内に密閉して直接外部
に流出させないようにするとともに、その化学反
応を不活性ガスにより防止することができるもの
である。したがつて、前記従来例のような床等を
覆うライナの代用を外管３により行ない得て、該
ライナの省略を可能とし、配管構造の簡略化を図
ることができるものである。なお、前記漏洩流体
は、不活性ガスの循環経路の一部を構成している
サンプリング管１１により迅速に検出することが
できる。 With this structure, even if fluid leaks from the process tube 1, the leaked fluid is sealed in the ring-shaped space 9 by the outer tube 3 to prevent it from directly flowing outside, and the chemical reaction is prevented. This can be prevented by using an inert gas. Therefore, the outer pipe 3 can be used in place of the liner that covers the floor and the like as in the conventional example, making it possible to omit the liner and simplifying the piping structure. Note that the leaked fluid can be quickly detected by the sampling pipe 11 that forms part of the inert gas circulation path.
また、リング状空間９内の断熱材１０は、高温
状態の液体ナトリウムを輸送するプロセス管１と
外管３との間の熱伝達を抑制して、液体ナトリウ
ムの温度低下を防止することができる。この場
合、プロセス管１が高温になつて外管３との間に
熱膨張差が乗じた場合、プロセス管１と該プロセ
ス管１にクランプ６により一体の前記他の分割部
分Ｂとの半径方向外方の熱膨張がスナツバ８によ
り吸収されるとともに、該スナツバ８と外管３支
持用リジツトサポート５とが連結用ベローズ２を
介して外管３の各分割部分Ｂ・Ｃにそれぞれ別個
に取り付けられた状態で構造物４，７に支持され
ていることにより、両分割部分Ｂ・Ｃの間のベロ
ーズ２により両管１，３の間の半径方向の熱膨張
差を吸収し得、かつ、外管３の各ベローズ２によ
り管軸方向の熱膨張差も吸収し得て、熱応力の発
生を低減することができるものである。 Furthermore, the heat insulating material 10 in the ring-shaped space 9 can suppress heat transfer between the process tube 1 and the outer tube 3 that transport liquid sodium in a high temperature state, thereby preventing a drop in the temperature of the liquid sodium. . In this case, when the process tube 1 becomes high temperature and a difference in thermal expansion is multiplied between the process tube 1 and the outer tube 3, the process tube 1 and the other divided portion B integrated with the process tube 1 are connected in the radial direction by the clamp 6. The outer thermal expansion is absorbed by the snubber 8, and the snubber 8 and the rigid support 5 for supporting the outer tube 3 are separately attached to each divided portion B and C of the outer tube 3 via the connecting bellows 2. By being supported by the structures 4 and 7 in the attached state, the difference in thermal expansion in the radial direction between the two pipes 1 and 3 can be absorbed by the bellows 2 between the two divided parts B and C, and The bellows 2 of the outer tube 3 can also absorb the difference in thermal expansion in the tube axis direction, thereby reducing the occurrence of thermal stress.
第２図は本考案の他の実施例を示すもので、リ
ング状空間９の漏洩流体のサンプリング専用とし
て、外管３の外周部に断熱材（この場合保温材）
１０および予熱ヒータ１３を設け、これらのメン
テナンスを容易にしたものである。 FIG. 2 shows another embodiment of the present invention, in which a heat insulating material (in this case, a heat insulating material) is provided on the outer periphery of the outer tube 3 for exclusive use of sampling leakage fluid in the ring-shaped space 9.
10 and a preheater 13 are provided to facilitate their maintenance.
「考案の効果」
以上説明したように、本考案の高温流体輸送用
二重管によれば、次のような効果を奏することが
できる。"Effects of the Invention" As explained above, the double pipe for transporting high temperature fluid of the present invention can provide the following effects.
(i) プロセス管の回りに外管を設けた二重管構造
としたので、プロセス管から万一流体が漏洩し
た場合に、漏洩流体を外管により密閉して外部
への流出を防止し得、従来例のような床等を覆
うライナを省略することを可能にして、配管構
造の簡略化を図ることができる。(i) Since it has a double-tube structure with an outer tube around the process tube, even if fluid leaks from the process tube, the leaked fluid can be sealed by the outer tube and prevented from leaking to the outside. It is possible to omit the liner that covers the floor etc. as in the conventional example, and the piping structure can be simplified.
(ii) 外管の分割部分を連結するベローズを介して
二つの分割部分に外管支持用リジツトサポート
とプロセス管支持用スナツバとをそれぞれ配設
して、両管を別個に支持させる如くしたので、
両管の間に熱膨張差が生じた場合に、これをス
ナツバおよび外管のベローズにより吸収し得
て、熱応力の発生を防止して、施設の健全性を
高めることができる。(ii) A rigid support for supporting the outer tube and a snubber for supporting the process tube are respectively disposed in the two divided parts via a bellows that connects the divided parts of the outer tube, so that both tubes are supported separately. So,
If a thermal expansion difference occurs between the two tubes, this can be absorbed by the snubber and the bellows of the outer tube, preventing the generation of thermal stress and improving the health of the facility.
第１図は本考案を高速増殖炉プラントにおける
液体ナトリウム輸送用管に適用した一実施例を示
す縦断面図、第２図は本考案の他の実施例を示す
縦断面図である。
１……プロセス管、２…ベローズ、３……外
管、４，７……構造物、５……リジツトサポー
ト、６……クランプ、８……スナツバ、１０……
断熱材、１１……サンプリング管。
FIG. 1 is a longitudinal cross-sectional view showing one embodiment in which the present invention is applied to a pipe for transporting liquid sodium in a fast breeder reactor plant, and FIG. 2 is a longitudinal cross-sectional view showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Process tube, 2...Bellows, 3...Outer tube, 4, 7...Structure, 5...Rigid support, 6...Clamp, 8...Snap bar, 10...
Insulation material, 11...sampling tube.
Claims (1)
隔をおいて複数に分割されるとともにその分割部
分が相互にベローズにより連結された外管を設
け、該外管の分割部分の一つに、これを固定状態
に支持するリジツトサポートを設け、かつ、他の
分割部分に、前記プロセス管と一体のスナツバを
設けたことを特徴とする高温流体輸送用二重管。 An outer tube is provided around the process tube for fluid transport, the outer tube being divided into a plurality of parts at intervals in the tube axis direction, and the divided parts are connected to each other by bellows, and one of the divided parts of the outer pipe is provided with: 1. A double pipe for transporting high-temperature fluid, characterized in that a rigid support is provided to support the process pipe in a fixed state, and a snubber integrated with the process pipe is provided in another divided part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985027795U JPH0336781Y2 (en) | 1985-02-27 | 1985-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985027795U JPH0336781Y2 (en) | 1985-02-27 | 1985-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61142983U JPS61142983U (en) | 1986-09-03 |
| JPH0336781Y2 true JPH0336781Y2 (en) | 1991-08-05 |
Family
ID=30525077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985027795U Expired JPH0336781Y2 (en) | 1985-02-27 | 1985-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0336781Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321867A (en) * | 2006-05-31 | 2007-12-13 | Taiyo Nippon Sanso Corp | Flexible tube |
-
1985
- 1985-02-27 JP JP1985027795U patent/JPH0336781Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321867A (en) * | 2006-05-31 | 2007-12-13 | Taiyo Nippon Sanso Corp | Flexible tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61142983U (en) | 1986-09-03 |
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