JPH02130355A - Cold heat accumulator for cryogenic use - Google Patents
Cold heat accumulator for cryogenic useInfo
- Publication number
- JPH02130355A JPH02130355A JP28445188A JP28445188A JPH02130355A JP H02130355 A JPH02130355 A JP H02130355A JP 28445188 A JP28445188 A JP 28445188A JP 28445188 A JP28445188 A JP 28445188A JP H02130355 A JPH02130355 A JP H02130355A
- Authority
- JP
- Japan
- Prior art keywords
- regenerator
- cold heat
- compressed
- rare earth
- cryogenic
- 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
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims abstract 2
- 229910045601 alloy Inorganic materials 0.000 claims abstract 2
- 150000001875 compounds Chemical class 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 19
- 239000001307 helium Substances 0.000 abstract description 11
- 229910052734 helium Inorganic materials 0.000 abstract description 11
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract 1
- 239000011232 storage material Substances 0.000 description 11
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 6
- 229910052738 indium Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- 241000243321 Cnidaria Species 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000002371 helium Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910000634 wood's metal Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/003—Gas cycle refrigeration machines characterised by construction or composition of the regenerator
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明はＧＭ冷凍機、スターリング冷凍機、つ゛イル
マイヤー冷凍機等の蓄冷式極低温冷凍機に見
（吏用される極低温蓄冷器に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to cryogenic regenerators that can be found (used) in regenerator type cryogenic refrigerators such as GM refrigerators, Stirling refrigerators, and Steelmeyer refrigerators. It is something.
［従来の技術］
第６図（ａ）〜（（１）はρ１えば特開昭６１−２２８
２６３に示された従来の蓄冷器を示す断面図であり、図
において（２）はディス１−リビュータ、（３）は容器
、（４）はフィルター、（６）はヘリウムガス、（１３
）、（１４）は蓄冷材で（１３）はパイプ状のもの（１
４）はワイヤ状のものである。（７）は高温部ボート、
（８）は低温部ボートである。[Prior art] Fig. 6(a) to ((1) is ρ1, for example, JP-A-61-228
263 is a sectional view showing the conventional regenerator shown in FIG.
), (14) are cold storage materials, and (13) are pipe-shaped ones (1
4) is wire-shaped. (7) is a high temperature section boat;
(8) is a low temperature section boat.
次に動作について説明する。上流ｆｆｌ膨張部（図示せ
ず）で例えば約１０■（に冷却された高圧のヘリウムガ
ス（６）を容器（３）の高温部ボートから導入＃例えば
Ｇｄｒ（ｈ等からなる蓄冷材（１３）と熱交換し、次第
に４ Ｋ近くまで冷却され低温部ボートから排出される
。このヘリウムガスを低温側１δ１張部（図示せず）で
膨張させ被冷却体（１図示せず）を冷却する。ディスト
リビュータ（２）は軸方向の断熱をし、ヘリウムガス（
６）の流れを一様にするものである１３５弓ｉｆ＆のヘ
リウムガス（６）は低温側ボートから導入され蓄冷材（
１３）を冷却し次式に１０ Ｋ近くまで昇温され高温部
ボートから排出される。Next, the operation will be explained. High-pressure helium gas (6) cooled to, for example, about 10 mm in the upstream ffl expansion section (not shown) is introduced from the high-temperature part boat of the container (3). The helium gas is gradually cooled to nearly 4 K and discharged from the low-temperature section boat.This helium gas is expanded in the low-temperature side 1δ1 tension section (not shown) to cool the object to be cooled (1 not shown). The distributor (2) is insulated in the axial direction and has helium gas (
Helium gas (6) of 135 bow if &, which uniformizes the flow of (6), is introduced from the low-temperature side boat and cools the regenerator material (6).
13) is cooled and raised to a temperature of nearly 10 K using the following equation, and then discharged from the high-temperature part of the boat.
極低温ではヘリウムガスの比熱が大きくなるので上記の
動作をさせるための蓄冷材の旦が多くをる。量を増すた
めに、蓄冷器を大きくすると蓄冷器中のガスの容積が増
えるので、圧１ｉｔ（ｆｆｌ（図示せず）が圧縮しなけ
ればならないヘリウムガス（６）の量が増え冷凍機の効
率が低下する。このため、蓄冷材（１３）、（１４）を
容器にすきまなく入れる必要がある。しかし、すきまを
つめ過ぎるとヘリウノ、ガス（６）が流れる際の圧力損
失が多くなり、効率５型−
従来の極低温蓄冷器は円柱状もしくは円筒状の蓄冷材を
用いているがＧ ｄ Ｒｈ等の希土類物質は非常にもろ
く円柱状や円筒状に加工することは非常に難かしい、ま
たその、形状から従来の蓄冷器は内部のガスの容積が大
きくなり、容積の制（１も難かしいという欠点があった
。At extremely low temperatures, the specific heat of helium gas increases, so it takes a lot of time for the regenerator to perform the above operation. In order to increase the volume, if the regenerator is made larger, the volume of gas in the regenerator increases, so the pressure 1it (ffl (not shown)) increases the amount of helium gas (6) that must be compressed, increasing the efficiency of the refrigerator. For this reason, it is necessary to put the cold storage materials (13) and (14) into the container without any gaps.However, if the gaps are too closed, the pressure loss when the gas (6) flows will increase, which will reduce the efficiency. Type 5 - Conventional cryogenic regenerators use cylindrical or cylindrical regenerator materials, but rare earth materials such as G d Rh are extremely fragile and difficult to process into cylindrical or cylindrical shapes. Due to its shape, conventional regenerators have a large internal gas volume, which has the disadvantage of making it difficult to limit the volume.
また、動作中の振動やガスの移動で蓄冷材が牽粍し微粉
末が生じ膨張部のシール部等に付着し能力を低下させる
原因になる。In addition, vibrations and gas movement during operation cause the regenerator material to be stretched, resulting in fine powder that adheres to the seal portion of the expansion section and reduces performance.
この発明は上記のような問題点を解消するためになされ
たもので、加工が容易であり、かつ、内一
この発明に係る極低温蓄冷器は、粒状の希土類物質例え
ばＧ ｄ Ｒｈを設定された体積まで圧縮し板状とし、
これを低熱１云導物質からなるディス１〜リビユータを
介して複数個、低熱伝導物質からなる容器に納めたもの
である。またこの発明の別の発明に関する蓄冷器は粒状
の希土類物質の表面を柔らかい金属またはω１脂でコー
ティングした後に上記方法によって蓄冷器を形成したも
のである。This invention was made in order to solve the above-mentioned problems, and is easy to process, and in particular, the cryogenic regenerator according to this invention is made of a granular rare earth material such as G d Rh. It is compressed to the same volume and made into a plate shape.
A plurality of these are placed in a container made of a low heat conductive material via a disk 1 to a reviewer made of a low heat conductive material. A regenerator according to another aspect of the present invention is one in which the surface of a granular rare earth material is coated with a soft metal or ω1 fat, and then the regenerator is formed by the above method.
［ｆＹ用コ
この発明における蓄冷器は蓄冷材中のガスの容積を設定
された値に設定しであるので圧縮しなければならないヘ
リウムガスの量と圧力損失のバランスを最ｉｆヒするこ
とが容易になり、その結果冷凍機の能力を向上できる。[For fY] Since the regenerator in this invention sets the volume of gas in the regenerator material to a predetermined value, it is easy to maintain the best balance between the amount of helium gas that must be compressed and the pressure loss. As a result, the capacity of the refrigerator can be improved.
また、蓄冷材の表面をコーティングしであるので小さな
圧力で圧縮でき圧１１ａ ｆ＆、コーティング層がバイ
ンド材となるので蓄冷材のはがれや移動がなくなりひい
ては微粉末の発生を低減できるので信頼性の高い冷凍機
が得られる。In addition, since the surface of the regenerator material is coated, it can be compressed with a small pressure.The coating layer acts as a binding material, eliminating peeling and movement of the regenerator material, which in turn reduces the generation of fine powder, making it highly reliable. A refrigerator is obtained.
［命珊カ実施例］ 以下、この発明の一実施例を図について説明する。[Life coral example] An embodiment of the present invention will be described below with reference to the drawings.
第１図において、（１）は蓄冷材（４）はフィルター（
５）ｌよスペーサーであり曲は従来と同じものである。In Figure 1, (1) is the cold storage material (4) is the filter (
5) L is a spacer and the song is the same as before.
蓄冷材（１）は蓄冷器内のガスの容器と、ヘリウムガス
（６）が流れる際の圧力損失のバランスを考えて定めら
れた体積まで圧縮されているので、冷凍機の効率を向上
できる。The regenerator material (1) is compressed to a volume determined by taking into consideration the balance between the gas container in the regenerator and the pressure loss when the helium gas (6) flows, thereby improving the efficiency of the refrigerator.
第２図（ａ）〜（ｅ）にこの発明の蓄冷器の製作法につ
いて示す、始めに一定量の蓄冷材（１）を入れ、プレス
（９）で定められた体債に圧縮する。その後ディストリ
ビュータ（２）と蓄冷材（１）を入れ、プレスする。同
様のプロセスを繰り返すと完成する。FIGS. 2(a) to 2(e) show a method for manufacturing a regenerator of the present invention. First, a certain amount of regenerator material (1) is put in and compressed into a predetermined shape using a press (9). After that, the distributor (2) and the cold storage material (1) are put in and pressed. Repeat the same process to complete.
第３図（ａ）（ｂ）に示すように、蓄冷材（１）を柔ら
かい金属からなるコーテイング材（１０） （例えばイ
ンジウム）でコーティングしたものを容器（３）に入れ
上述したように定められた（ｌｒｃ ｍまで圧Ｉｊｈす
る。この時、インジウム（１０）がつぶれ、すきまを埋
めるので少ない力で圧縮でき、また、インジウム（ｌＯ
）同志が接合し合い強固な蓄冷材層を形成する。As shown in FIGS. 3(a) and 3(b), a cold storage material (1) coated with a coating material (10) made of a soft metal (for example, indium) is placed in a container (3) and the material is heated as described above. Pressure Ijh is applied to (lrc m). At this time, indium (10) is crushed and fills the gap, so it can be compressed with less force, and indium (lO
) The comrades join together to form a strong cold storage material layer.
また第４図に示すように蓄冷材（１）をガイドリング（
１１）に入れた状態でプレスしたものを積層する方式を
用いれば製作が容易になり、かつ周りからのもれを小さ
くできる。In addition, as shown in Figure 4, the cold storage material (1) is attached to the guide ring (
11) If a method is used in which pressed materials are laminated in a container, manufacturing becomes easier and leakage from the surroundings can be reduced.
また第５図に示すようにプレスの型の面に凹部をつけれ
ば蓄冷材の表面に凸部（１２）を設けれるので、これを
７１層すればディストリビュータをなくすことが可能に
なる。Furthermore, as shown in FIG. 5, if a recess is formed on the surface of the press die, a convex portion (12) can be provided on the surface of the cold storage material, so if 71 layers are formed, it is possible to eliminate the distributor.
なお上記実施例では蓄冷材をインジウムでコーティング
することを示したが、池の金属、例えば鉛や半田、ウッ
ドメタル等でも良い、また、テフロン等の樹脂でも同様
の効果が得られる。Although the above embodiment shows that the cold storage material is coated with indium, it may be coated with a metal such as lead, solder, wood metal, etc., or a resin such as Teflon may also be used to obtain the same effect.
ｌ岬
なお上記実施愉ではディストリビュータ（２）を用いる
例について示したが使用しない蓄冷器に応用できること
は明らかである。In the above implementation, an example using the distributor (2) was shown, but it is clear that it can be applied to a regenerator that does not use the distributor (2).
また断面が円形のものについて示したが方形その池の形
状でも可能であることはいうまでもない
また、上記実施例では外置き型の蓄冷器について図示し
たがディスプレーサ−に内蔵する型の蓄冷器に適応でき
ることはいうまでもない。In addition, although the cross section is shown as being circular, it goes without saying that a rectangular or pond-shaped regenerator is also possible.Also, in the above embodiment, an external regenerator is shown, but a regenerator that is built into a displacer is used. Needless to say, it can be adapted to
［発明の効果］
以上のように、この発明によれば粒状の蓄冷材を圧縮し
て、内部のガスの旦を制御卸できるので冷凍機の効率が
向上する。[Effects of the Invention] As described above, according to the present invention, the granular cold storage material can be compressed and the internal gas volume can be controlled and discharged, thereby improving the efficiency of the refrigerator.
またこの発明の別の発明によれば蓄冷材の表面を柔らか
い金属もしくは樹脂でココティングしたらのをプレスし
たので強固でかつ１紋粉末の発生も少なくなるので冷凍
機の信頼性が向上する。According to another aspect of the present invention, the surface of the cold storage material is coated with a soft metal or resin and then pressed, which makes it strong and reduces the generation of powder particles, thereby improving the reliability of the refrigerator.
第３図（ａ）（ｂ）、ほこの発明の別の発明の実施例に
よる極低温蓄冷器の製（Ｐ法を示す断面図、第４図、夕
、（３）は容器、（６）はヘリウムガス、（１０）はバ
インド材。
なお、図中、同一符号は同一又は相当部分を示す。Figures 3(a) and (b): Manufacturing of a cryogenic regenerator according to another embodiment of Hoko's invention (cross-sectional view showing the P method; Figure 4, (3) is a container; (6) (10) is a helium gas, and (10) is a binding material. In the figures, the same reference numerals indicate the same or equivalent parts.
Claims (2)
金または化合物を圧縮し板状に成形したものを低熱伝導
材料からなるディストリビュータを介して複数個低熱伝
導材料からなる容器内に納めた構造を特徴とする極低温
用蓄冷器。(1) An alloy or compound containing granular rare earth metals with large specific heat at extremely low temperatures is compressed and formed into a plate shape, which is placed in a container made of a low heat conductive material via a distributor made of a low heat conductive material. A cryogenic regenerator with a unique structure.
でコーティングしてバインド材としたことを特徴とする
極低温蓄冷器。(2) A cryogenic regenerator characterized in that the surface of a granular rare earth material is coated with a soft metal or resin to serve as a binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28445188A JPH02130355A (en) | 1988-11-09 | 1988-11-09 | Cold heat accumulator for cryogenic use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28445188A JPH02130355A (en) | 1988-11-09 | 1988-11-09 | Cold heat accumulator for cryogenic use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02130355A true JPH02130355A (en) | 1990-05-18 |
Family
ID=17678710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28445188A Pending JPH02130355A (en) | 1988-11-09 | 1988-11-09 | Cold heat accumulator for cryogenic use |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02130355A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02309158A (en) * | 1989-05-23 | 1990-12-25 | Toshiba Corp | Ultra-low temperature refrigerator |
| JPH03129257A (en) * | 1989-10-13 | 1991-06-03 | Toshiba Corp | Extremely low-temperature freezer |
| JPH0452467A (en) * | 1990-06-20 | 1992-02-20 | Toshiba Corp | Cryogenic refrigerator |
| JPH0640772U (en) * | 1992-10-30 | 1994-05-31 | 巍洲 橋本 | Low temperature regenerator |
| JPH0719790A (en) * | 1993-02-22 | 1995-01-20 | Tektronix Inc | Preparation of core for heat exchanger |
-
1988
- 1988-11-09 JP JP28445188A patent/JPH02130355A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02309158A (en) * | 1989-05-23 | 1990-12-25 | Toshiba Corp | Ultra-low temperature refrigerator |
| JPH03129257A (en) * | 1989-10-13 | 1991-06-03 | Toshiba Corp | Extremely low-temperature freezer |
| JPH0452467A (en) * | 1990-06-20 | 1992-02-20 | Toshiba Corp | Cryogenic refrigerator |
| JPH0640772U (en) * | 1992-10-30 | 1994-05-31 | 巍洲 橋本 | Low temperature regenerator |
| JPH0719790A (en) * | 1993-02-22 | 1995-01-20 | Tektronix Inc | Preparation of core for heat exchanger |
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