JP2002340236A - Flexible hose for cryogenic refrigerator - Google Patents
Flexible hose for cryogenic refrigeratorInfo
- Publication number
- JP2002340236A JP2002340236A JP2001141061A JP2001141061A JP2002340236A JP 2002340236 A JP2002340236 A JP 2002340236A JP 2001141061 A JP2001141061 A JP 2001141061A JP 2001141061 A JP2001141061 A JP 2001141061A JP 2002340236 A JP2002340236 A JP 2002340236A
- Authority
- JP
- Japan
- Prior art keywords
- flexible hose
- hose
- gas
- refrigerator
- flexible
- 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
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Thermal Insulation (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は極低温冷凍装置にお
けるヘリウム圧縮機ユニットと冷凍機ユニットをヘリウ
ムガス供給用の高圧管とヘリウムガス返送用の低圧管で
連結しているガスホースに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas hose in which a helium compressor unit and a refrigerator unit in a cryogenic refrigerator are connected by a high-pressure pipe for supplying helium gas and a low-pressure pipe for returning helium gas.
【０００２】[0002]
【従来の技術】ＧＭ式冷凍機やパルスチュ−ブ型冷凍機
等の極低温冷凍機を使用して物体を４Ｋ〜１０Ｋの極低
温に冷却する極低温冷凍装置Ｓは、通常、圧縮機ユニッ
トＣと冷凍機ユニットＲで構成されており、これら２つ
のユニットは電気配線で連結されている他、冷媒となる
ヘリウムガスを圧縮機から高圧にして冷凍機へ供給し、
冷凍機で低圧になったヘリウムガスを圧縮機へ返送する
ガスホースＨ（高圧管と低圧管）で連結されている。2. Description of the Related Art A cryogenic refrigerator S for cooling an object to a cryogenic temperature of 4K to 10K by using a cryogenic refrigerator such as a GM refrigerator or a pulse tube refrigerator is usually a compressor unit C. And a refrigerator unit R. These two units are connected to each other by electric wiring and supply helium gas as a refrigerant to the refrigerator at a high pressure from the compressor,
It is connected by a gas hose H (high-pressure pipe and low-pressure pipe) for returning helium gas, which has been reduced in pressure by the refrigerator, to the compressor.
【０００３】このガスホースは一般的にはステンレス製
のフレキシブルホースや銅製パイプが使用されている。
極低温冷凍装置Ｓを設置する場所がレイアウトの関係
で、圧縮機ユニットＣを図３に示すように屋外へ設置し
なければならない場合がある。そのような場合にはフレ
キシブルホースＨが屋外に敷設せざるを得なくなる。[0003] Generally, a stainless steel flexible hose or a copper pipe is used as the gas hose.
Due to the layout of the place where the cryogenic refrigeration system S is installed, the compressor unit C may need to be installed outdoors as shown in FIG. In such a case, the flexible hose H must be laid outdoors.
【０００４】ステンレス製のフレキシブルホースＨが屋
外の風雨にさらされる環境に敷設されると腐食によりガ
ス漏れや破裂する危険性があるため従来はその対策とし
て、00002460 ステンレスの材質を通常使用されるＳＵ
Ｓ３０３やＳＵＳ３０４等から耐 蝕性の強いＳＵＳ
３１６Ｌ等に変更する。00002461 ガス漏れの点検等メ
ンテナンスを頻繁に行い、腐食が進行したときはホー
スを交換する。00002462 腐食が進行し難い銅製パイ
プを使用する。等の対策が行なわれていた。[0004] If a stainless steel flexible hose H is laid in an outdoor environment exposed to the wind and rain, there is a danger of gas leakage and rupture due to corrosion.
SUS with strong corrosion resistance from S303 and SUS304
316L etc. 00002461 Frequent maintenance such as gas leak inspection is performed.
Replace the source. 00002462 Use a copper pipe that does not easily corrode. And other measures were taken.
【０００５】しかしながら、上記00002460の場合は材料
が高価になるとともに、設置場所が沿岸部等の塩分を含
む環境では腐食の問題が残り、00002461の場合はメンテ
ナンスにかかるコストや部品交換によるコストが高くつ
く。00002462の場合はコストが低く押さえられるもの
の、柔軟なフレキシブルホースに比べて配管が固定配管
となるため施工が煩雑になるという問題点があった。[0005] However, in the case of the above-mentioned 00002460, the material becomes expensive, and in a place where the installation location contains salt such as a coastal area, there remains a problem of corrosion. Get on. In the case of 00002462, although the cost is kept low, there is a problem that the piping is fixed piping compared to a flexible hose, so that the construction becomes complicated.
【０００６】[0006]
【発明が解決しようとする課題】本発明は屋外の環境に
おいて使用しても、腐食によるガス漏れや破裂の危険性
を回避でき、配管施工が煩雑でなく、メンテナンスコス
トや部品コストを低減できるフレキシブルホースを提供
することを目的とするものである。According to the present invention, even when used in an outdoor environment, the risk of gas leakage or rupture due to corrosion can be avoided, piping work is not complicated, and maintenance cost and parts cost can be reduced. It is intended to provide a hose.
【０００７】[0007]
【課題を解決するための手段】本発明は圧縮機ユニット
と冷凍機ユニットを連結するヘリウムガスホースであっ
て、該ガスホースはステンレス製フレキシブルホースを
耐候性があり且つ、柔軟性のある材料で空間部を形成さ
せて密封していることを特徴とする。SUMMARY OF THE INVENTION The present invention is a helium gas hose for connecting a compressor unit and a refrigerator unit, wherein the gas hose is made of a stainless steel flexible hose made of a weather-resistant and flexible material. Is formed and sealed.
【０００８】[0008]
【発明の実施の形態】本発明にかかる極低温冷凍装置用
フレキシブルホースの実施形態について図１を参照して
説明する。図１は本発明にかかる極低温冷凍装置用フレ
キシブルホースＨの一部切欠正面図である。１は従来か
ら使用されているＳＵＳ３０３やＳＵＳ３０４等の材質
からなるステンレス製のフレキシブルホースで、一端部
には圧縮機ユニットと、又、他端部には冷凍機ユニット
と接続する配管接続金具２、２が連結されている。本発
明は上記従来のステンレス製フレキシブルホース１およ
び配管接続金具２、２のホース１との接続部の外表面を
塩化ビニール等の軟質合成樹脂薄板３で密封している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a flexible hose for a cryogenic refrigerator according to the present invention will be described with reference to FIG. FIG. 1 is a partially cutaway front view of a flexible hose H for a cryogenic refrigerator according to the present invention. Numeral 1 is a stainless steel flexible hose made of a material such as SUS303 or SUS304 which has been conventionally used. One end of the flexible hose is connected to a compressor unit, and the other end is a pipe connection fitting 2 connected to a refrigerator unit. 2 are connected. In the present invention, the outer surfaces of the conventional stainless flexible hose 1 and the pipe connection fittings 2 and 2 connected to the hose 1 are sealed with a soft synthetic resin thin plate 3 such as vinyl chloride.
【０００９】図２は本発明にかかる極低温冷凍装置用フ
レキシブルホースＨの他の実施形態の一部切欠正面図で
ある。この実施形態は、上記従来のステンレス製フレキ
シブルホース１および配管接続金具２、２のホース１と
の接続部の外表面を合成樹脂製の蛇腹管或いは、外表面
が合成樹脂でコーティングされた金属性蛇腹管４で密封
している。FIG. 2 is a partially cutaway front view of another embodiment of the flexible hose H for a cryogenic refrigerator according to the present invention. In this embodiment, the outer surfaces of the conventional stainless steel flexible hose 1 and the pipe connection fittings 2 and 2 connected to the hose 1 are made of a synthetic resin bellows tube or a metallic material whose outer surface is coated with a synthetic resin. It is sealed with a bellows tube 4.
【００１０】次に本発明の作用について説明する。本発
明のフレキシブルホースは、従来のステンレス製フレキ
シブルホースを耐候性があり、かつ、柔軟性のある材料
で密封しているため、圧縮機ユニットが屋外に設置され
るような場合でも腐食によるガス漏れや破裂の危険性を
回避できるとともに、フレキシブルホースの柔軟性が損
なわれていないため極低温冷凍装置の敷設に際し、作業
性を損なうことがない。Next, the operation of the present invention will be described. The flexible hose of the present invention seals a conventional stainless steel flexible hose with a weather-resistant and flexible material, so that even when the compressor unit is installed outdoors, gas leakage due to corrosion can occur. And the risk of explosion can be avoided, and since the flexibility of the flexible hose is not impaired, workability is not impaired when laying the cryogenic refrigerator.
【００１１】さらに、長年月の使用により腐食等により
ステンレス製フレキシブルホース１からガス漏れが起き
たとしても、ステンレス製フレキシブルホース１を密封
している軟質合成樹脂薄板３或いは蛇腹管４との間の空
間部５内に漏洩したヘリウムガスが溜まるため、ヘリウ
ムリークディテクター等の検出器でのガス漏洩確認が容
易に実施できる。Further, even if gas leaks from the stainless steel flexible hose 1 due to corrosion or the like due to long-term use, even if the gas leaks from the soft synthetic resin thin plate 3 or the bellows tube 4 sealing the stainless steel flexible hose 1. Since the leaked helium gas accumulates in the space 5, the gas leak can be easily confirmed by a detector such as a helium leak detector.
【００１２】[0012]
【発明の効果】本発明はステンレス製フレキシブルホー
スを耐候性があり、かつ、柔軟性のある材料で密封して
いるため、圧縮機ユニットが屋外に設置されるような場
合でも腐食によるガス漏れや破裂の危険性を回避できる
とともに、フレキシブルホースの柔軟性が損なわれない
ので極低温冷凍装置の敷設に際し、作業性を損なうこと
がない。また、ステンレス製フレキシブルホースからガ
ス漏れが生じた場合は、該フレキシブルホースを密封し
ている空間内にヘリウムガスが溜まるのでガス漏れの発
見が容易にでき保守作業を迅速にできる。According to the present invention, since the stainless steel flexible hose is sealed with a weather-resistant and flexible material, even when the compressor unit is installed outdoors, gas leakage due to corrosion is prevented. The risk of rupture can be avoided, and the flexibility of the flexible hose is not impaired, so that workability is not impaired when laying the cryogenic refrigeration system. When gas leaks from a stainless steel flexible hose, helium gas accumulates in the space that seals the flexible hose, so that gas leaks can be easily found and maintenance work can be performed quickly.
【図１】本発明にかかる極低温冷凍装置用フレキシブル
ホースの実施形態の一部切欠正面図。FIG. 1 is a partially cutaway front view of an embodiment of a flexible hose for a cryogenic refrigerator according to the present invention.
【図２】本発明にかかる極低温冷凍装置用フレキシブル
ホースの他の実施形態の一部切欠正面図。FIG. 2 is a partially cutaway front view of another embodiment of the flexible hose for a cryogenic refrigerator according to the present invention.
【図３】極低温冷凍装置の圧縮機ユニットが屋外に設置
された状態の説明図。FIG. 3 is an explanatory view of a state in which a compressor unit of the cryogenic refrigeration apparatus is installed outdoors.
１ ステンレス製フレキシブルホース ２ 配管接続金具 ３ 軟質合成樹脂薄板 ４ 蛇腹管 ５ 空間部 Ｃ 圧縮機ユニット Ｈ ガスホース Ｒ 冷凍機 Ｓ 極低温冷凍装置 DESCRIPTION OF SYMBOLS 1 Stainless steel flexible hose 2 Pipe connection fitting 3 Soft synthetic resin thin plate 4 Bellows pipe 5 Space part C Compressor unit H Gas hose R Refrigerator S Cryogenic refrigerator
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１３年６月４日（２００１．６．４）[Submission date] June 4, 2001 (2001.6.4)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００４[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００４】ステンレス製のフレキシブルホースＨが屋
外の風雨にさらされる環境に敷設されると腐食によりガ
ス漏れや破裂する危険性があるため従来はその対策とし
て、 (1) ステンレスの材質を通常使用されるＳＵＳ３０３や
ＳＵＳ３０４等から耐蝕性の強いＳＵＳ３１６Ｌ等に変
更する。 (2) ガス漏れの点検等メンテナンスを頻繁に行い、腐食
が進行したときはホースを交換する。 (3) 腐食が進行し難い銅製パイプを使用する。 等の対策が行なわれていた。If a stainless steel flexible hose H is laid in an environment where it is exposed to the wind and rain outdoors, there is a danger of gas leakage or rupture due to corrosion. Conventionally, as a countermeasure, (1) a stainless steel material is usually used. SUS303 or SUS304 is changed to SUS316L or the like having high corrosion resistance. (2) Frequent maintenance such as inspection for gas leaks, and if corrosion progresses, replace the hose. (3) Use copper pipes that do not easily corrode. And other measures were taken.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００５】しかしながら、上記(1)の場合は材料が高
価になるとともに、設置場所が沿岸部等の塩分を含む環
境では腐食の問題が残り、(2)の場合はメンテナンスに
かかるコストや部品交換によるコストが高くつく。(3)
の場合はコストが低く押さえられるものの、柔軟なフレ
キシブルホースに比べて配管が固定配管となるため施工
が煩雑になるという問題点があった。[0005] However, in the case of the above (1), the material becomes expensive, and in the environment where the installation location contains salt such as a coastal area, there remains a problem of corrosion. Costs are high. (3)
In the case of (1), although the cost can be kept low, there is a problem that the construction is complicated because the piping is a fixed piping as compared with a flexible hose.
Claims (3)
るヘリウムガスホースであって、該ガスホースはステン
レス製フレキシブルホースを耐候性があり且つ、柔軟性
のある材料で空間部を形成させて密封していることを特
徴とする極低温冷凍装置用フレキシブルホース。1. A helium gas hose for connecting a compressor unit and a refrigerator unit, wherein the gas hose is formed by sealing a stainless steel flexible hose by forming a space with a weather-resistant and flexible material. A flexible hose for cryogenic refrigeration equipment.
質の塩化ビニール樹脂薄板であることを特徴とする請求
項１記載の極低温冷凍装置用フレキシブルホース。2. The flexible hose for a cryogenic refrigeration system according to claim 1, wherein the material having weather resistance and flexibility is a soft vinyl chloride resin thin plate.
成樹脂製の蛇腹管または、表面が合成樹脂でコーティン
グされた金属性蛇腹管であることを特徴とする請求項１
記載の極低温冷凍装置用フレキシブルホース。3. A bellows tube made of a synthetic resin or a metal bellows tube whose surface is coated with a synthetic resin, is made of a weather-resistant and flexible material.
The flexible hose for a cryogenic refrigeration apparatus according to the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001141061A JP2002340236A (en) | 2001-05-11 | 2001-05-11 | Flexible hose for cryogenic refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001141061A JP2002340236A (en) | 2001-05-11 | 2001-05-11 | Flexible hose for cryogenic refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002340236A true JP2002340236A (en) | 2002-11-27 |
Family
ID=18987567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001141061A Pending JP2002340236A (en) | 2001-05-11 | 2001-05-11 | Flexible hose for cryogenic refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002340236A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9095736B2 (en) | 2013-05-07 | 2015-08-04 | Engineered Corrosion Solutions, Llc | Corrosion monitoring in a fire sprinkler system |
| CN105276303A (en) * | 2015-12-08 | 2016-01-27 | 金剑 | Novel pipeline capable of preventing leakage and stoppage |
| WO2017069285A1 (en) * | 2015-10-23 | 2017-04-27 | 住友重機械工業株式会社 | Flexible connection pipe for very low-temperature refrigerator, and very low-temperature refrigerator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0385795U (en) * | 1989-12-15 | 1991-08-29 | ||
| JPH11325327A (en) * | 1998-04-23 | 1999-11-26 | Alcatel Cit | Flexible pipe |
| JP2001055241A (en) * | 1999-08-18 | 2001-02-27 | Dia Syst Kk | Container for frozon storage |
-
2001
- 2001-05-11 JP JP2001141061A patent/JP2002340236A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0385795U (en) * | 1989-12-15 | 1991-08-29 | ||
| JPH11325327A (en) * | 1998-04-23 | 1999-11-26 | Alcatel Cit | Flexible pipe |
| JP2001055241A (en) * | 1999-08-18 | 2001-02-27 | Dia Syst Kk | Container for frozon storage |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9095736B2 (en) | 2013-05-07 | 2015-08-04 | Engineered Corrosion Solutions, Llc | Corrosion monitoring in a fire sprinkler system |
| US9839802B2 (en) | 2013-05-07 | 2017-12-12 | Engineered Corrosion Solutions, LLC. | Corrosion monitoring in a fire sprinkler system |
| US11000718B2 (en) | 2013-05-07 | 2021-05-11 | Engineered Corrosion Solutions, Llc | Corrosion monitoring in a fire sprinkler system |
| WO2017069285A1 (en) * | 2015-10-23 | 2017-04-27 | 住友重機械工業株式会社 | Flexible connection pipe for very low-temperature refrigerator, and very low-temperature refrigerator |
| CN108351125A (en) * | 2015-10-23 | 2018-07-31 | 住友重机械工业株式会社 | Ultra-low temperature refrigerating device flexible connection pipe and ultra-low temperature refrigerating device |
| CN108351125B (en) * | 2015-10-23 | 2020-07-03 | 住友重机械工业株式会社 | Flexible connecting pipe for cryogenic refrigerator and cryogenic refrigerator |
| US11092271B2 (en) | 2015-10-23 | 2021-08-17 | Sumitomo Heavy Industries, Ltd. | Flexible connection pipe for cryocooler and cryocooler |
| CN105276303A (en) * | 2015-12-08 | 2016-01-27 | 金剑 | Novel pipeline capable of preventing leakage and stoppage |
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