JPS61243259A - Low temperature device - Google Patents
Low temperature deviceInfo
- Publication number
- JPS61243259A JPS61243259A JP8362585A JP8362585A JPS61243259A JP S61243259 A JPS61243259 A JP S61243259A JP 8362585 A JP8362585 A JP 8362585A JP 8362585 A JP8362585 A JP 8362585A JP S61243259 A JPS61243259 A JP S61243259A
- Authority
- JP
- Japan
- Prior art keywords
- low temperature
- refrigerator
- heat
- temperature region
- space
- 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.)
- Granted
Links
Landscapes
- Control Of Temperature (AREA)
- Devices That Are Associated With Refrigeration Equipment (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) [Summary] 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、高温領域と低温領域の２系統の冷凍機からな
り低温を発生するための低温装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a low temperature device for generating low temperature, which includes two systems of refrigerators, one in a high temperature region and one in a low temperature region.
本発明は、圧縮空間、冷却器、蓄冷器及び膨張空間より
構成される１箇の低温領域冷凍機又は、圧縮空間、冷却
器、蓄冷器、熱交換器及び膨張空間より構成される複数
筒の低温領域冷凍機であるスターリングサイクル冷凍機
、ブルミャサイクル冷凍機、ギフオードサイクル冷凍機
、ギフオードマクマホンサイクル冷凍機等と、高温領域
冷凍機であるスターリングサイクル冷凍機、ギフオード
マクマホンサイクル冷凍機、ツルベイサイクル冷凍・機
、ブルミャサイクル冷凍機、クロードサイクル冷凍機等
を組み合せ、略５に以下の温度の冷凍を発生せしめる冷
凍装置に利用できるもので、この冷凍装置は、液体ヘリ
ウムで冷却された超伝導磁石を収納しているクライオス
タットに取り付け、クライオスタットに侵入する熱↓こ
よって蒸発するヘリウム蒸気を再び液化せしめ、クライ
オスタット内の液体ヘリウムの量を常に一定に保持せし
める冷却装置等に利用される。The present invention provides a low-temperature area refrigerator consisting of a compression space, a cooler, a regenerator, and an expansion space, or a multiple cylinder refrigerator consisting of a compression space, a cooler, a regenerator, a heat exchanger, and an expansion space. Stirling cycle refrigerators, Burmya cycle refrigerators, Gifford cycle refrigerators, Gifford McMahon cycle refrigerators, etc., which are low temperature region refrigerators, and Stirling cycle refrigerators, Gifford McMahon cycle refrigerators, which are high temperature region refrigerators. It can be used in a refrigeration system that combines a Tsurubay cycle refrigeration machine, a Burmya cycle refrigeration machine, a Claude cycle refrigeration machine, etc., and generates refrigeration at a temperature of approximately 5 or below.This refrigeration system is cooled with liquid helium. It is attached to a cryostat that houses a superconducting magnet, and the helium vapor that evaporates as a result of the heat that enters the cryostat is liquefied again, and used in cooling devices that keep the amount of liquid helium in the cryostat constant at all times. .
（従来の技術）
従来、低温装置としては、米国特許第４，３３５．５７
９号明細書に示される低温装置が既に知られている。こ
のものは、第２図に示される如く、動力源１０１によっ
て回転されるクランクシャフト１０２、該クランクシャ
フト１０２によって摺動されるピストン１０３、膨張空
間１０４．１０５及び低温部１０６．１０７を有する高
温領域の冷凍機と、動力源１０８によって回転されるク
ランクシャフト１０９．該クランクシャフト１０９によ
って摺動されるピストン１１０，１１１、圧縮空間１１
２、膨張空間１１３、放熱部１１４及び蓄冷器１１５を
有する低温領域の冷凍機を備えている。放熱部１１４は
、低温部１０７と熱的に結合され、低温領域の冷凍機の
圧縮空間１１２で発生する動作ガスの圧縮熱が低温部１
０７で吸熱されるようになっている。又、低温領域の冷
凍機の圧縮シリンダ１１６及び膨張シリンダ１１７は。(Prior Art) Conventionally, as a cryogenic device, U.S. Patent No. 4,335.57
The cryogenic device shown in Patent No. 9 is already known. As shown in FIG. 2, this includes a crankshaft 102 rotated by a power source 101, a piston 103 slid by the crankshaft 102, a high temperature area having an expansion space 104, 105 and a low temperature part 106, 107. refrigerator, and a crankshaft 109 . rotated by the power source 108 . Pistons 110, 111 slid by the crankshaft 109, compression space 11
2. It is equipped with a refrigerator in a low temperature region that has an expansion space 113, a heat radiation section 114, and a regenerator 115. The heat dissipation section 114 is thermally coupled to the low temperature section 107, and the heat of compression of the working gas generated in the compression space 112 of the refrigerator in the low temperature region is transferred to the low temperature section 1.
Heat is absorbed at 07. Also, the compression cylinder 116 and expansion cylinder 117 of the refrigerator in the low temperature region.
低温部１０６と予冷板１１８を介して熱的に結合され、
常温部から圧縮空間１１２及び膨張空間１１３に流入す
る熱を減少させている。thermally coupled to the low temperature section 106 via a precooling plate 118;
Heat flowing into the compression space 112 and the expansion space 113 from the room temperature section is reduced.
（発明が解決しようとする問題点）
しかし、この従来の低温装置では、圧縮シリンダ１１６
及び膨張シリンダ１１７を高温領域の冷凍機の低温部１
０６で予冷板１１８を介して冷却しているにもかかわら
ず１例えば圧縮空間１１２の温度がＩＯＫレベル、膨張
空間１１３の温度が４にレベルの時、低温部１０６の温
度が２０にレベルで、典型的な値として、圧縮空間１１
２に数ワット、膨張空間１１３に０．５ワット程度の熱
侵入が存在する。このため、装置全体の効率が劣化し、
低温領域の冷凍機の膨張空間１１３で同一の冷凍出力を
得るには、低温装置全体に大きな入力が必要となり、装
置が大型化し、重量も増大する欠点がある。これは、低
温領域の冷凍機の圧縮空間１１２及び膨張空間１１３が
、シリンダ１１６．１１７内に摺動配置されるピストン
１１１゜１１０によって形成されているため、ピストン
とシリンダ間に形成されピストンの摺動を許容するため
の間隙に動作ガスが侵入し、この動作ガスが常温部から
運ぶ熱、及びピストンを伝わる熱を充分小さくできない
ためである。(Problems to be Solved by the Invention) However, in this conventional low temperature device, the compression cylinder 116
and the expansion cylinder 117 in the low temperature section 1 of the refrigerator in the high temperature region.
For example, when the temperature of the compression space 112 is at the IOK level and the temperature of the expansion space 113 is at the level of 4, the temperature of the low-temperature part 106 is at the level of 20, despite cooling via the pre-cooling plate 118 at 06. As a typical value, the compressed space 11
There is heat intrusion of several watts into the expansion space 113 and about 0.5 watt into the expansion space 113. This reduces the overall efficiency of the device,
In order to obtain the same refrigeration output in the expansion space 113 of the refrigerator in the low-temperature region, a large input is required for the entire low-temperature apparatus, which has the drawback of increasing the size and weight of the apparatus. This is because the compression space 112 and expansion space 113 of the refrigerator in the low-temperature region are formed by the pistons 111 and 110 that are slidably disposed within the cylinders 116 and 117. This is because the working gas enters the gap that allows the piston to move, and the heat carried by this working gas from the normal temperature section and the heat transmitted through the piston cannot be sufficiently reduced.
そこで、本発明は、上記従来技術の問題点を解決し、常
温部からの熱侵入を低減させて冷凍効率を向上させるこ
とができる低温装置を提供することを目的とするもので
ある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a low-temperature apparatus that can solve the above problems of the prior art, reduce heat intrusion from the normal temperature section, and improve refrigeration efficiency.
（問題点を解決するための手段）
上記目的を達成するため、本発明は、上記低温装置にお
いて、低温領域の冷凍機を構成する１箇以上の圧縮空間
及び１箇以上の膨張空間のうち。(Means for Solving the Problems) In order to achieve the above object, the present invention provides the above-mentioned low-temperature apparatus with one or more compression spaces and one or more expansion spaces constituting a refrigerator in a low-temperature region.
１箇以上の該空間を動力源と連結される連結部材によっ
て伸縮するベローズによって構成したことを特徴とする
ものである。It is characterized in that one or more of the spaces are configured by bellows that expand and contract by a connecting member that is connected to a power source.
本発明の低温装置の構成は上記の如くであるので、圧縮
空間乃至は膨張空間内の動作ガスが、ベローズによって
その内部に保持され、常温部から隔離されるので、動作
ガスによる常温部からの熱侵入を効果的に低減すること
ができる。Since the structure of the low-temperature apparatus of the present invention is as described above, the working gas in the compression space or the expansion space is held inside by the bellows and is isolated from the normal temperature part, so that the working gas is removed from the normal temperature part. Heat intrusion can be effectively reduced.
（実施例）
以下、本発明を図示の一実施例に基づいて詳細に説明す
る。(Example) Hereinafter, the present invention will be described in detail based on an illustrated example.
第１図は本発明の一実施例を示す図であり、同図に示す
低温装置は、低温領域の冷凍機１ｏと高温領域の冷凍機
１１よりなる。高温領域の冷凍機１１は、モーター等の
動力源に連結されるクランクシャフト（図示せず）と連
動されるピストン１２．１３、シリンダ１４．１５内に
ピストン１２．１３によって夫々形成される圧縮空間１
６と膨張空間１７、放熱部１８及び蓄冷器１９を有する
。一方、低温領域の冷凍機１０は、モーター等の動力源
に連結されるクランクシャフト（図示せず）等と連動さ
れるロンド状の連結部材２０．２１を有し、この連結部
材２０．２１の下端には、その内部に膨張空間２２と圧
縮空間２３を夫々形成するベローズ２４．２５が固定さ
れている。ベローズ２４．２５の他端は、支持円筒２６
．２７に夫々固着さ ゛れている。上記連結部材
２０．２１及び支持円筒２６．２７は熱伝導性の小さな
部材により形成される。FIG. 1 is a diagram showing an embodiment of the present invention, and the cryogenic apparatus shown in the figure is composed of a refrigerator 1o in a low temperature region and a refrigerator 11 in a high temperature region. The refrigerator 11 in the high temperature region has a piston 12.13 that is linked to a crankshaft (not shown) connected to a power source such as a motor, and a compression space formed by the piston 12.13 in a cylinder 14.15. 1
6, an expansion space 17, a heat radiation section 18, and a regenerator 19. On the other hand, the refrigerator 10 in the low temperature region has a rond-shaped connecting member 20.21 that is interlocked with a crankshaft (not shown) that is connected to a power source such as a motor. At the lower end, bellows 24,25 are fixed, which form an expansion space 22 and a compression space 23, respectively. The other end of the bellows 24.25 is connected to the support cylinder 26.
．． 27, respectively. The connecting member 20.21 and the supporting cylinder 26.27 are formed by a small thermally conductive member.
圧縮空間２３と膨張空間２２との間は、放熱部２８及び
蓄冷器２９によって連通している。放熱部２８には、高
温領域の冷凍機１１の低温動作ガスが出入りできる流路
３０を設ける。連結部材２０及び２１の上端は夫々クラ
ンクシャフト等に連結されて往復運動する連結棒３１及
び３２にベローズ３３及び３４を介して固定し、これら
のベロ−ズ３３．３４の一端を真空容器３５に取り付け
ている。The compression space 23 and the expansion space 22 communicate with each other through a heat radiating section 28 and a regenerator 29 . The heat radiation section 28 is provided with a flow path 30 through which low-temperature operating gas of the refrigerator 11 in the high-temperature region can enter and exit. The upper ends of the connecting members 20 and 21 are fixed via bellows 33 and 34 to connecting rods 31 and 32 that are connected to a crankshaft or the like and move reciprocally, respectively, and one end of these bellows 33 and 34 is connected to a vacuum container 35. It is installed.
（作用）
圧縮空間２３、放熱部２８．蓄冷器２９及び膨張空間２
２によって構成される低温領域の冷凍機１０の圧縮空間
２３及び膨張空間２２の容積は。(Function) Compression space 23, heat radiation part 28. Regenerator 29 and expansion space 2
The volumes of the compression space 23 and expansion space 22 of the refrigerator 10 in the low-temperature region configured by 2 are as follows.
動力源、クランクシャフト等に連動するベローズ２５及
び２４の往復運動によって変動し、変動の位相差を膨張
ベローズ２４が圧縮ベローズ２５に対して略９０度進む
ように駆動することにより、膨張空間２２で冷凍を発生
し、圧縮空間２３で圧縮熱を発生する。上記圧縮熱及び
圧縮部２３に常温より侵入する熱は、放熱部２８におい
て高温領域の冷凍機１１の低温動作ガスによって吸収さ
れ。Fluctuations occur due to the reciprocating motion of the bellows 25 and 24 that are linked to a power source, crankshaft, etc., and by driving the expansion bellows 24 so that it advances approximately 90 degrees relative to the compression bellows 25, the phase difference of the fluctuation is controlled in the expansion space 22. Refrigeration is generated, and compression heat is generated in the compression space 23. The compression heat and the heat that enters the compression section 23 from room temperature are absorbed by the low-temperature operating gas of the refrigerator 11 in the high-temperature region in the heat radiating section 28 .
上記の熱は高温領域の冷凍機の冷凍負荷となる。The above heat becomes a refrigeration load on the refrigerator in the high temperature region.
膨張空間２２をベローズ２４で構成し、一端を断熱連結
部材２０と連動させ、他端を断熱支持円筒２６で固定す
ることにより、従来のピストン・シリンダタイプ冷凍機
において、ピストン・シリンダとの間隙に存在する動作
ガスが膨張空間に運ぶ熱を無くし、又、ピストン及びシ
リンダを伝わる伝導熱も低減し、膨張部２２で発生する
膨張仕事を有効に冷凍出力として外部に取り出すことが
できる。By constructing the expansion space 22 with a bellows 24, one end of which is interlocked with the heat insulating connecting member 20, and the other end fixed with a heat insulating support cylinder 26, the gap between the piston and the cylinder can be secured in a conventional piston/cylinder type refrigerator. The heat carried by the existing working gas to the expansion space is eliminated, and the conductive heat transmitted through the piston and cylinder is also reduced, so that the expansion work generated in the expansion section 22 can be effectively extracted to the outside as refrigeration output.
一方、圧縮空間２３をベローズ２５で構成し。On the other hand, the compression space 23 is configured with a bellows 25.
一端を断熱連結部材２１と連動させ、他端を断熱支持円
筒２７で固定することにより、前記の膨張空間２２と同
様に、圧縮部２３に侵入する熱を低減でき、従って、高
温領域の冷凍機の冷凍負荷を低減することができる。By interlocking one end with the heat insulating connecting member 21 and fixing the other end with the heat insulating support cylinder 27, it is possible to reduce the heat entering the compression section 23 in the same way as the expansion space 22, and therefore the refrigerator in the high temperature region refrigeration load can be reduced.
膨張空間２２（圧縮空間２３）の容積変化は、ベローズ
２４（２５）の一端に固定した断熱連結部材２０（２１
）の往復運動で行われる。この連結部材２０（２１）は
、真空容器３５を大気に対して真空気密する、常温部の
ベローズ３３（３４）の一端に固定されている。この端
面には、さらに常温部の駆動機構の往復運動を伝える連
結棒３１（３２）が固定されており、連結棒３１ （３
２）の往復運動は。The volume change of the expansion space 22 (compression space 23) is controlled by the heat insulating connecting member 20 (21) fixed to one end of the bellows 24 (25).
) is performed in a reciprocating motion. This connecting member 20 (21) is fixed to one end of a bellows 33 (34) in a normal temperature section that makes the vacuum container 35 vacuum-tight from the atmosphere. A connecting rod 31 (32) that transmits the reciprocating motion of the drive mechanism of the normal temperature section is further fixed to this end surface.
2) The reciprocating motion is.
ベローズ３３（３４）を介して直接断熱連結部材２０（
２１）に伝わる。The heat insulating connection member 20 (
21).
なお、上記実施例では、膨張空間２２及び圧縮空間２３
の双方をベローズによって形成したが。In addition, in the above embodiment, the expansion space 22 and the compression space 23
Both sides were formed by bellows.
いずれか一方の空間のみをベローズによって形成しても
よく、また該空間を２個以上設けてもよい。Only one of the spaces may be formed by a bellows, or two or more spaces may be provided.
また高温領域の冷凍機における圧縮空間及び／又は膨張
空間もベローズによって形成してもよい。Further, the compression space and/or expansion space in a refrigerator in a high temperature region may also be formed by bellows.
（発明の効果）
以上詳述したように、本発明によれば、低温領域の冷凍
機の動作ガスは上記ベローズ２５及び２４によって完全
に外部から遮断されているので、ピストン・シリンダタ
イプの冷凍機のように、常温部からの熱侵入による冷凍
効率を劣化するようなことはなく、更には、駆動部で用
いられる潤滑油、あるいは摺動部のシール材の摩耗粉等
の不純物が動作ガスに混入することがなく、蓄冷材の汚
染、放熱部内の流路３ｏの表面汚染等が原因となる冷凍
機の性能劣化も起きないので、その効果は極めて大きい
。(Effects of the Invention) As detailed above, according to the present invention, the operating gas of the refrigerator in the low temperature region is completely shut off from the outside by the bellows 25 and 24, so that the piston-cylinder type refrigerator As shown in the figure, the refrigeration efficiency will not be degraded due to heat intrusion from the room-temperature part, and furthermore, impurities such as lubricating oil used in the drive part or abrasion powder of the sealing material of the sliding part will not enter the operating gas. The effect is extremely large because there is no contamination of the cold storage material, no deterioration in the performance of the refrigerator due to contamination of the cool storage material, surface contamination of the flow path 3o in the heat dissipation section, etc.
第１図は本発明の一実施例に係る低温装置を示す説明図
、
第２図は従来の低温装置を示す説明図である。
１０・・・低温領域の冷凍機。
１１・・・高温領域の冷凍機、
２ｏ、２１・・・連結部材、 ２２・・・膨張空間２３
・・・圧縮空間、 ２４．２５ベローズ、２８
・・・放熱部 ２９・・・蓄冷器。
特許出願人 科学技術庁長官官房会計課長代理人弁
理士 中 村 尚
第２図FIG. 1 is an explanatory diagram showing a low temperature apparatus according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a conventional low temperature apparatus. 10... Refrigeration machine in low temperature range. 11... High temperature region refrigerator, 2o, 21... Connecting member, 22... Expansion space 23
...compressed space, 24.25 bellows, 28
...Heat radiation part 29...Regenerator. Patent applicant Takashi Nakamura, Patent attorney, Director, Accounting Division, Director-General's Secretariat, Science and Technology Agency Figure 2
Claims (1)
生させるための低温装置において、前記低温領域の冷凍
機を構成する１箇以上の圧縮空間及び１箇以上の膨張空
間のうち、１箇以上の該空間を動力源と連結される連結
部材によって伸縮するベローズによって構成したことを
特徴とする低温装置。In a cryogenic device for generating low temperature, which consists of two systems of refrigerators, a high temperature region and a low temperature region, one of one or more compression spaces and one or more expansion spaces constituting the refrigerator in the low temperature region. A low temperature apparatus characterized in that the space described above is constituted by a bellows that expands and contracts by a connecting member connected to a power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8362585A JPS61243259A (en) | 1985-04-20 | 1985-04-20 | Low temperature device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8362585A JPS61243259A (en) | 1985-04-20 | 1985-04-20 | Low temperature device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61243259A true JPS61243259A (en) | 1986-10-29 |
| JPH0481096B2 JPH0481096B2 (en) | 1992-12-22 |
Family
ID=13807653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8362585A Granted JPS61243259A (en) | 1985-04-20 | 1985-04-20 | Low temperature device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61243259A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014020719A (en) * | 2012-07-20 | 2014-02-03 | Toshiba Corp | Stirling type refrigerator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644555A (en) * | 1979-09-17 | 1981-04-23 | Aisin Seiki | Refrigerating system |
| JPS59158959A (en) * | 1983-03-02 | 1984-09-08 | 株式会社日立製作所 | Expansion machine |
-
1985
- 1985-04-20 JP JP8362585A patent/JPS61243259A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644555A (en) * | 1979-09-17 | 1981-04-23 | Aisin Seiki | Refrigerating system |
| JPS59158959A (en) * | 1983-03-02 | 1984-09-08 | 株式会社日立製作所 | Expansion machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014020719A (en) * | 2012-07-20 | 2014-02-03 | Toshiba Corp | Stirling type refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0481096B2 (en) | 1992-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3218815A (en) | Cryogenic refrigeration apparatus operating on an expansible fluid and embodying a regenerator | |
| US5182914A (en) | Rotary dipole active magnetic regenerative refrigerator | |
| EP1158256A2 (en) | Pulse-tube cryorefrigeration apparatus using an integrated buffer volume | |
| US5107683A (en) | Multistage pulse tube cooler | |
| JP2020031160A (en) | Superconducting magnet cooling device and superconducting magnet cooling method | |
| JPS61256158A (en) | Refrigeration system | |
| JP2005515386A (en) | A cryopump with a two-stage pulse tube refrigerator | |
| US4852356A (en) | Cryogenic cooler | |
| JP2836175B2 (en) | refrigerator | |
| JPS61243259A (en) | Low temperature device | |
| US5406801A (en) | Thermally operated refrigerator | |
| Gifford et al. | A new refrigeration system for 4.2 K | |
| Price et al. | Two stage hybrid cryocooler development | |
| JPH0412378B2 (en) | ||
| JPS61225556A (en) | Cryogenic cooling device | |
| JPH01281372A (en) | Cooling device | |
| JPH03286970A (en) | Cooling system | |
| JP3363697B2 (en) | Refrigeration equipment | |
| JPS6245460B2 (en) | ||
| JP2942045B2 (en) | Pulse tube refrigerator | |
| JPH0660769B2 (en) | How to efficiently absorb heat energy at low temperatures | |
| Curlier | Cryocooler technologies | |
| JPH0583827B2 (en) | ||
| Bradshaw et al. | Mechanical cooling systems for use in space | |
| JPH0350949B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |