JPH0326392Y2 - - Google Patents
Info
- Publication number
- JPH0326392Y2 JPH0326392Y2 JP1986052591U JP5259186U JPH0326392Y2 JP H0326392 Y2 JPH0326392 Y2 JP H0326392Y2 JP 1986052591 U JP1986052591 U JP 1986052591U JP 5259186 U JP5259186 U JP 5259186U JP H0326392 Y2 JPH0326392 Y2 JP H0326392Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- outer tube
- pipe
- piping
- vacuum
- 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
- 239000012530 fluid Substances 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
この考案は、低温液化ガスを供給または輸送す
るための配管に係り、特に、適度の可撓性をもつ
とともに、最高使用圧力の向上を図つた真空断熱
配管に関するものである。[Detailed description of the invention] "Industrial application field" This invention relates to piping for supplying or transporting low-temperature liquefied gas, and is particularly designed to have appropriate flexibility and improve maximum working pressure. This article relates to vacuum insulated piping.
「従来の技術およびその問題点」
一般に、液化炭酸ガス、液化窒素等の低温流体
を配管により移送または供給する場合には、その
流体の物性上、断熱性の高い配管を用いることが
必要である。"Prior art and its problems" Generally, when transporting or supplying low-temperature fluids such as liquefied carbon dioxide or liquefied nitrogen through piping, it is necessary to use highly insulated piping due to the physical properties of the fluid. .
従来、この種の配管の構造として、次の，
に示す真空断熱配管が知られている。 Conventionally, the structure of this type of piping is as follows:
The vacuum insulated piping shown in is known.
低温流体が流通する内管と、該内管と適宜の
間隔をもつて配設された外管と、これら内管と
外管の一部に設けられて該内管および外管の長
さ方向の変位を許容する膨張継手とから構成さ
れたものであつて、前記外管と内管とがステン
レス鋼または銅によつて形成された構造。 An inner pipe through which low-temperature fluid flows, an outer pipe disposed at an appropriate interval from the inner pipe, and a pipe provided at a part of the inner pipe and the outer pipe in the longitudinal direction of the inner pipe and the outer pipe. an expansion joint that allows displacement of the outer tube and the inner tube, the outer tube and the inner tube being made of stainless steel or copper.
低温流体が流通する内管と、該内管に適宜の
間隔をもつて配設された外管とから構成され
て、これら内管と外管とがベローズによつて形
成されて長さ方向に対して変位を許容するとと
もに、可撓性をもつようにした構造。 It is composed of an inner pipe through which low-temperature fluid flows, and an outer pipe arranged at an appropriate interval in the inner pipe, and these inner pipe and outer pipe are formed by bellows and A structure that allows for displacement and is flexible.
そして、上記の断熱配管，では、内管と外
管との間の間〓部を所望の真空度で排気し高い断
熱性能が得られるようにしている。 In the above-mentioned heat-insulating piping, the space between the inner pipe and the outer pipe is evacuated to a desired degree of vacuum to obtain high heat-insulating performance.
しかしながら、上記の真空断熱配管による
と、該配管に可撓性がないため、配管を現場状況
に合わせて製作しなければならないばかりか、施
工が複雑になり、しかも、膨張継手の許容圧が10
Kg／cm2程度であるため、これ以上の圧力流体が必
要な場合は容易に対応できないという問題があつ
た。また、の断熱配管の場合には、配管自体に
可撓性があることから配管施工が容易にはなる
が、一方でコストが高くなり、の配管同様最高
使用圧力が10Kg／cm2以下に制限されるという欠点
があつた。 However, with the vacuum insulated piping described above, since the piping is not flexible, it not only has to be manufactured according to the site conditions, but the construction is complicated, and the allowable pressure of the expansion joint is 10
Since the pressure is about Kg/cm 2 , there was a problem that if a higher pressure fluid was required, it could not be easily handled. In addition, in the case of insulated piping, the piping itself is flexible, which makes piping construction easier, but on the other hand, it increases the cost, and like the piping, the maximum working pressure is limited to 10 kg/cm 2 or less. It had the disadvantage of being exposed to.
「問題点を解決するための手段」
この考案は、上記の事情に鑑みてなされたもの
であつて、可撓性をもつにもかかわらず、高圧で
低温流体の輸送を行うことが可能な真空断熱配管
を得ることを目的とし、この目的を達成するため
に、ステンレス製のベローズによつて形成される
外管と、該外管内に適宜の間〓をもつて挿入さ
れ、かつ、なまし銅により形成されてその内部を
流体が通過する内管と、前記内外管の間〓部に介
在させた断熱材とを備えて、前記内外管の間〓部
を真空排気するようにしている。``Means for solving the problem'' This idea was made in view of the above circumstances, and is a vacuum that can transport low-temperature fluids at high pressure despite its flexibility. The purpose is to obtain a thermally insulated pipe, and to achieve this purpose, an outer tube formed by a stainless steel bellows and an annealed copper tube inserted with a suitable distance into the outer tube. The inner tube is formed of a metal tube through which a fluid passes, and a heat insulating material is interposed between the inner and outer tubes, and the inner tube is evacuated.
「作用」
この考案による真空断熱配管によれば、内管の
全部または一部がベローズによつて構成されると
ともに、断熱材を介在させて内管が設けられ、か
つ該内管がなまし銅によつて形成されているの
で、可撓性が良く、しかも大きな使用圧力を許容
することができる。"Function" According to the vacuum insulated piping according to this invention, all or part of the inner pipe is composed of bellows, the inner pipe is provided with a heat insulating material interposed, and the inner pipe is made of annealed copper. Since it is made of , it has good flexibility and can tolerate a large working pressure.
「実施例」
以下、この考案の実施例について図面を参照し
て説明する。"Embodiments" Hereinafter, embodiments of this invention will be described with reference to the drawings.
図において、符号１はなまし銅によつて長尺に
形成されて、内部を液化窒素、液化炭酸ガス等の
低温流体が流通する内管であつて、その端部は、
取付金具１ａを介して低温液化ガスを消費する装
置あるいは移送する貯槽等（図示せず）に接続さ
れている。 In the figure, reference numeral 1 denotes an inner tube made of annealed copper and through which a low-temperature fluid such as liquefied nitrogen or liquefied carbon dioxide flows.
It is connected to a device that consumes the low-temperature liquefied gas or a storage tank for transferring the gas (not shown) via the mounting bracket 1a.
また、前記内管１は、ステンレス鋼によつて形
成された外管２に適宜の間隔をもつて挿通されて
いる。この外管２は、パイプ部材３，４と、パイ
プ部材４に連結されてその長さ方向の変位を許容
するとともに、可撓性をもつたベローズ５とがら
なるものであつて、前記パイプ部材３の端部に配
設された端末金具６により内管２の外面に固定さ
れている。 Further, the inner tube 1 is inserted through an outer tube 2 made of stainless steel at an appropriate interval. The outer tube 2 is made up of pipe members 3 and 4 and a flexible bellows 5 that is connected to the pipe member 4 to allow displacement in the length direction. It is fixed to the outer surface of the inner tube 2 by a terminal fitting 6 disposed at the end of the tube.
また、内外管の間隔部で、かつ該内管１の外周
面には、該内管１を保温するための断熱材１１が
巻き付けられており、この断熱材１１は、ポリエ
ステルフイルム（商品名．マイラー）にアルミニ
ウムを蒸着、積層したものであつて、スペーサ材
となるとともに、真空処理することによりスーパ
ーインシユレーシヨンが形成され、極めて高い断
熱効果が得られるようになつている。また、前記
断熱材１１の外面には、前記断熱材１１を内管１
の外周面に固着するためのフツ素樹脂（商品名．
テフロン）チユーブ１３がスパイラル状に巻き付
けられている。 In addition, a heat insulating material 11 is wrapped around the outer peripheral surface of the inner tube 1 at the interval between the inner and outer tubes to keep the inner tube 1 warm, and this heat insulating material 11 is made of polyester film (trade name). It is made by vapor-depositing and laminating aluminum on (Mylar) and serves as a spacer material, and when vacuum treated, super insulation is formed, resulting in an extremely high heat insulation effect. Further, the heat insulating material 11 is attached to the outer surface of the inner pipe 1.
Fluororesin (product name) for adhering to the outer peripheral surface of the
Teflon tube 13 is wound in a spiral shape.
一方、前記パイプ部材３の壁面には、前記内外
管の間〓部１２を真空排気するための真空排気弁
２０が設けられている。また、前記外管２のベロ
ーズ５の外周面は、ステンレススチールワイヤな
どからなる可撓性に富む編組やネツト７で被覆さ
れている。 On the other hand, a vacuum exhaust valve 20 is provided on the wall surface of the pipe member 3 to evacuate the space 12 between the inner and outer tubes. Further, the outer peripheral surface of the bellows 5 of the outer tube 2 is covered with a highly flexible braid or net 7 made of stainless steel wire or the like.
次に、上記の真空断熱配管の組み立て方を工程
順に説明する。 Next, how to assemble the vacuum insulation piping described above will be explained step by step.
(1) 内管１に断熱材１１を巻き付ける。(1) Wrap the insulation material 11 around the inner pipe 1.
(2) 断熱材１１の外周面にスペーサ１３をスパイ
ラル状に巻き付けて、該断熱材１１を内管１に
固定する。(2) The spacer 13 is wound spirally around the outer peripheral surface of the heat insulating material 11 to fix the heat insulating material 11 to the inner tube 1.
(3) 断熱材１１の巻かれた内管１を外管２に挿入
する。(3) Insert the inner tube 1 wrapped with the heat insulating material 11 into the outer tube 2.
(4) 前記外管２の端部と内管１の外面とに末端金
具６を溶接により固定して、該内管１と外管２
とを連結する。(4) The end fitting 6 is fixed to the end of the outer tube 2 and the outer surface of the inner tube 1 by welding, and the inner tube 1 and the outer tube 2 are connected together.
Connect with.
(5) 真空排気弁２０に真空ポンプ（図示せず）を
接続し、間〓部１２内を排気して、該間〓部１
２を真空状態にする。(5) Connect a vacuum pump (not shown) to the vacuum exhaust valve 20 to evacuate the inside of the gap section 12, and
2 into a vacuum state.
上記の真空断熱配管においては、外管２の径が
内管１のそれと比べて相対的に大きいため該外管
２の剛性が高く、これによつて、該外管２にフレ
キシビリテイを持たせるために、ベローズ５を使
用し、一方、内管１の径が外管２の径と比較して
相対的に小さいため剛性が低く、これにより、内
管１に可撓性を持たせるために、該内管１の材料
になまし銅を使用するようにしている。 In the vacuum insulated piping described above, since the diameter of the outer tube 2 is relatively larger than that of the inner tube 1, the rigidity of the outer tube 2 is high, thereby giving the outer tube 2 flexibility. On the other hand, since the diameter of the inner tube 1 is relatively small compared to the diameter of the outer tube 2, the rigidity is low, so that the inner tube 1 has flexibility. In addition, annealed copper is used as the material for the inner tube 1.
また、前記内管１になまし銅を用いることによ
つて、高い使用圧力を許容することができる他以
下に示す効果を有する。 Furthermore, by using annealed copper for the inner tube 1, a high working pressure can be tolerated, and the following effects are also obtained.
内管１に長尺のなまし銅管を使用しているの
で、溶接箇所が少なくなり、製作原価の低減を
図ることができる。 Since a long annealed copper tube is used for the inner tube 1, the number of welding points is reduced, and manufacturing costs can be reduced.
管全体にフレキシビリテイがあるため、設置
の困難な壁貫通ピツト等の場所にも容易に管の
取付けを行うことが可能である。 Since the entire tube is flexible, the tube can be easily installed in difficult-to-install locations such as through-wall pits.
なお、上記の真空断熱配管では、外管２の一部
にベローズ５が使用されているが、使用態様によ
つては、外管２全部をベローズで構成しても良
い。 In the above-mentioned vacuum insulation piping, the bellows 5 is used in a part of the outer tube 2, but depending on the usage mode, the entire outer tube 2 may be made of bellows.
「考案の効果」
以上詳細に説明したように、この考案によれば
ステンレス製のベローズによつて形成された外管
と、該外筒内に挿入され、かつなまし銅により形
成された内管とを設けるとともに、前記外管と内
管との間の間〓部に断熱材を介在させ、前記間〓
部の真空排気を行うようにしたので、高い断熱効
果が得られるとともに、可撓性にも優れ、配管施
工が極めて容易になる。また、比較的高い圧力の
低温流体に容易に対応できるばかりか、低コスト
で生産できるという効果を奏する。"Effects of the invention" As explained in detail above, this invention has an outer tube formed of stainless steel bellows, and an inner tube inserted into the outer tube and formed of annealed copper. At the same time, a heat insulating material is interposed between the outer tube and the inner tube, and the gap between the outer tube and the inner tube is
Since the section is vacuum evacuated, it not only provides a high heat insulation effect, but also has excellent flexibility, making piping construction extremely easy. Moreover, it not only can easily handle low-temperature fluids at relatively high pressures, but also has the effect of being able to be produced at low cost.
第１図は、本考案の真空断熱配管の一例を示す
一部を切り欠いた側面図である。
１……内管、２……外管、５……ベローズ、１
１……断熱材、１２……間〓部。
FIG. 1 is a partially cutaway side view showing an example of vacuum insulation piping according to the present invention. 1...Inner pipe, 2...Outer pipe, 5...Bellows, 1
1...insulation material, 12...interval part.
Claims (1)
外管と、該外管内に適宜の間隙をもつて挿入さ
れ、かつ、なまし銅により形成されてその内部
を流体が通過する内管と、前記内外管の間〓部
に介在させた断熱材とを備えて、前記内外管の
間〓部を真空排気するようにした真空断熱配
管。 ２ 前記外管の一部がステンレス製直管でなるこ
とを特徴とする実用新案登録請求の範囲第１項
記載の真空断熱配管。[Claims for Utility Model Registration] 1. An outer tube formed by a stainless steel bellows, which is inserted into the outer tube with an appropriate gap, and which is made of annealed copper and has a structure in which a fluid flows through the outer tube. A vacuum insulated piping comprising an inner pipe passing through and a heat insulating material interposed between the inner and outer pipes, and evacuating the inner part between the inner and outer pipes. 2. The vacuum insulated piping according to claim 1, wherein a part of the outer tube is a stainless steel straight tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986052591U JPH0326392Y2 (en) | 1986-04-08 | 1986-04-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986052591U JPH0326392Y2 (en) | 1986-04-08 | 1986-04-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62163691U JPS62163691U (en) | 1987-10-17 |
| JPH0326392Y2 true JPH0326392Y2 (en) | 1991-06-07 |
Family
ID=30877896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986052591U Expired JPH0326392Y2 (en) | 1986-04-08 | 1986-04-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0326392Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57129996A (en) * | 1981-02-05 | 1982-08-12 | Nippon Kokan Kk | Vacuum and adiabatic pipings mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5782291U (en) * | 1980-11-10 | 1982-05-21 |
-
1986
- 1986-04-08 JP JP1986052591U patent/JPH0326392Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57129996A (en) * | 1981-02-05 | 1982-08-12 | Nippon Kokan Kk | Vacuum and adiabatic pipings mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62163691U (en) | 1987-10-17 |
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