JPS6122159A - Method of operating helium liquefying refrigerator - Google Patents
Method of operating helium liquefying refrigeratorInfo
- Publication number
- JPS6122159A JPS6122159A JP14231084A JP14231084A JPS6122159A JP S6122159 A JPS6122159 A JP S6122159A JP 14231084 A JP14231084 A JP 14231084A JP 14231084 A JP14231084 A JP 14231084A JP S6122159 A JPS6122159 A JP S6122159A
- Authority
- JP
- Japan
- Prior art keywords
- liquid helium
- storage tank
- liquid
- helium
- level
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (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】
〔発明の利用分野〕
本発明は、ヘリウム液化冷凍装置の運転方法に係り、特
に、真空保冷槽内に液体ヘリウム貯槽を有し、真空保冷
槽外に液体ヘリウム貯槽から液体ヘリウムが供給される
他の液体ヘリウム貯槽を有するヘリウム液化冷凍装置の
運転に好適なへりラム液化冷凍装置の運転方法に関する
ものである。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a method of operating a helium liquefaction refrigeration system, and in particular, it has a liquid helium storage tank inside a vacuum cold storage tank, and a liquid helium storage tank outside the vacuum cold storage tank. The present invention relates to a method for operating a helium liquefaction refrigeration system suitable for operating a helium liquefaction refrigeration system having another liquid helium storage tank to which liquid helium is supplied.
真空保冷槽内に液体ヘリウム貯槽を有し、真空保冷槽外
に液体ヘリウム貯槽から液体ヘリウムが供給される他の
液体ヘリウム貯槽を有するヘリウム液化冷凍装置として
、例えば、特關昭５８−１９５７５６号公報に示される
ようなものが知られている。As a helium liquefaction refrigerator having a liquid helium storage tank inside the vacuum cold storage tank and another liquid helium storage tank to which liquid helium is supplied from the liquid helium storage tank outside the vacuum cold storage tank, for example, Japanese Patent No. 195756/1987 discloses The ones shown in are known.
このヘリウム液化冷凍装置では、液体ヘリウム貯槽に貯
蔵されている液体ヘリウムの液面を、液体ヘリウム貯槽
に内設した電気ヒータを発熱させ液体ヘリウム貯槽内の
液体ヘリウムを蒸発させて制御しているが、しかし、真
空保冷槽外の他の液体ｌ＼ツリウム槽に貯蔵されている
液体ヘリウムの液面の制御は、これとは無関係に別々に
行う必要があり、液面制御システムが複雑化するという
問題がある。In this helium liquefaction refrigeration system, the liquid level of the liquid helium stored in the liquid helium storage tank is controlled by causing an electric heater installed in the liquid helium storage tank to generate heat to evaporate the liquid helium in the liquid helium storage tank. However, the level of liquid helium stored in the thulium tank must be controlled separately, making the level control system complicated. There's a problem.
本発明の目的は、真空保冷槽外の他の液体ヘリウム貯槽
に貯蔵されている液体ヘリウムの液面制御システムを簡
略化できるヘリウム液化冷凍装置の運転方法を提供する
ことにある。An object of the present invention is to provide a method for operating a helium liquefaction refrigeration system that can simplify the liquid level control system for liquid helium stored in another liquid helium storage tank outside the vacuum cold storage tank.
本発明は、真空保冷槽外の液体ヘリウム貯槽の液体ヘリ
ウムの液面制御な゛、真空保冷槽内の液体ヘリウム貯槽
の液体ヘリウムを該液体ヘリウム貯槽内で蒸発させて該
液体ヘリウム貯槽から他の液体ヘリウム貯槽への液体ヘ
リウム供給量を調節して行うことを特徴とするもので、
他の液体ヘリウム貯槽の液体ヘリウムの液面制御を液体
ヘリウム貯槽の液体ヘリウムの液面を制御せずに行える
ようにすることで、他の液体ヘリウム貯槽の液体ヘリウ
ムの液面制御システムを簡略化しようとするものである
。The present invention provides liquid helium level control in a liquid helium storage tank outside the vacuum cold storage tank. It is characterized by adjusting the amount of liquid helium supplied to the liquid helium storage tank.
By making it possible to control the liquid helium level in other liquid helium storage tanks without controlling the liquid helium level in the liquid helium storage tank, the liquid helium level control system in other liquid helium storage tanks is simplified. This is what I am trying to do.
本発明の一実施例を図面により説明する。 An embodiment of the present invention will be described with reference to the drawings.
図面で、ｌは真空断熱された真空保冷槽で、真空保冷槽
１内に熱交換器４〜８．寒冷発生源たる膨張タービン９
，１０．液体ヘリウム貯槽１１．ジュール・トムソン弁
（以下、ＪＴ弁と略）１３．高圧ガス配管１７．低圧ガ
ス配管１８等を収納している。In the drawing, 1 is a vacuum insulated tank, and heat exchangers 4 to 8 are installed in the vacuum tank 1. Expansion turbine 9 as a source of cold generation
,10. Liquid helium storage tank 11. Joule-Thomson valve (hereinafter abbreviated as JT valve) 13. High pressure gas piping 17. It houses low pressure gas piping 18, etc.
圧縮機２で昇圧されたヘリウムガスは圧縮機２の吐出配
管３を経て真空保冷槽ｌに送給され、その後、高圧ガス
配管１７を経て熱交換器４に入り、ここで低圧ガス配管
１８を流通する″戻りの低圧、低温のヘリウムガスによ
って冷却される。この他に、液体窒素を用いて冷却され
る場合もある。熱交換器４を出たヘリウ・ムガスの一部
は、膨張タービン９、ｌＯのラインに送られ、残りのヘ
リウムガスは、熱交換器５〜８を順次経て冷却され、最
終的にＪＴＴｉＢ２断熱膨張されて一部が液化される。The helium gas pressurized by the compressor 2 is sent to the vacuum cold storage tank l via the discharge pipe 3 of the compressor 2, and then enters the heat exchanger 4 via the high pressure gas pipe 17, where it is connected to the low pressure gas pipe 18. It is cooled by the low-pressure, low-temperature helium gas flowing back. In addition, liquid nitrogen may also be used for cooling. A part of the helium gas that has exited the heat exchanger 4 is passed through the expansion turbine 9. , IO line, and the remaining helium gas is cooled through heat exchangers 5 to 8 in sequence, and finally JTTiB2 is adiabatically expanded and a portion is liquefied.
ＪＴＴｉＢ２液化した液体ヘリウムは液体ヘリウム貯槽
１１に溜まり、液化しなかったヘリウムガスは、低圧ガ
ス配管１８を通り、熱交換器８〜４を順次通って高圧側
のヘリウムガスに寒冷を与え、自身は温度を上昇させて
、大気温度近（まで温度回復して真空保冷槽１を出て、
圧縮機２の吸入配管１ｚを経イ
て圧縮機２に戻される。JTTiB2 The liquefied liquid helium accumulates in the liquid helium storage tank 11, and the unliquefied helium gas passes through the low-pressure gas pipe 18 and sequentially through the heat exchangers 8 to 4 to cool the helium gas on the high-pressure side, and the helium gas itself cools. Raise the temperature, recover to near atmospheric temperature, and leave the vacuum cold storage tank 1.
It is returned to the compressor 2 through the suction pipe 1z of the compressor 2.
液体ヘリウム貯槽１１に溜った液体ヘリウムは、配管１
４およびｂを経て真空保冷槽１内の他の液体ヘリウム貯
槽１６に供給されて貯蔵される。液体ヘパ−フローする
ので、この他の液体ヘリウム貯槽１６の液体ヘリウムの
液面を制御する必要がある。The liquid helium accumulated in the liquid helium storage tank 11 is transferred to the pipe 1
4 and b, it is supplied to another liquid helium storage tank 16 in the vacuum cold storage tank 1 and stored therein. Since the liquid helium flows, it is necessary to control the liquid level of the liquid helium in the other liquid helium storage tank 16.
この方法として、他の液体ヘリウム貯槽１６の液面を超
電導液面計等で検出して、この信号を液面制御器に送り
、液面制御器からの信号により、例えば配管１４に自動
弁を設けてこの自動弁で他の液体ヘリウム貯槽１６への
送液量を調節する方法もあるが、この方法であると、今
度は液体ヘリウム貯槽１１に溜る液体ヘリウムの液面も
同様に制御する必要が生じる。This method involves detecting the liquid level in another liquid helium storage tank 16 using a superconducting liquid level gauge or the like, sending this signal to a liquid level controller, and using the signal from the liquid level controller to set an automatic valve in the piping 14, for example. There is also a method of adjusting the amount of liquid sent to other liquid helium storage tanks 16 using this automatic valve, but with this method, it is also necessary to control the level of liquid helium accumulated in the liquid helium storage tank 11 in the same way. occurs.
そこで、この場合は、液体ヘリウム貯槽１１に溜る液体
ヘリウムの液面は制御せずに他の液体ヘリウム貯槽１６
に送り、他の液体ヘリウム貯槽１６に液体ヘリウムが溜
り過ぎると、この液面を超電導層面検知器１９で検知し
、この信号を液面制御器４に送り、液面制御器４の制御
信号を電流調節揺回に送り、この電流調節器２２番こよ
り、第１の酸体ヘリウム貯槽１１に設けた加熱手段、例
えば、電気ヒータ加を調整することにより、過剰生成し
た液体ヘリウムを液体ヘリウム貯槽１１内で蒸発さｉる
ことにより、他の液体ヘリウム貯槽１６に送られる液体
ヘリウムの量を調節している。Therefore, in this case, the level of liquid helium accumulated in the liquid helium storage tank 11 is not controlled and the level of the liquid helium accumulated in the liquid helium storage tank 11 is not controlled.
When too much liquid helium accumulates in other liquid helium storage tanks 16, the superconducting layer level detector 19 detects this liquid level, sends this signal to the liquid level controller 4, and sends the liquid helium control signal to the liquid level controller 4. The excess liquid helium is transferred to the liquid helium storage tank 11 by adjusting the heating means provided in the first acid helium storage tank 11, for example, an electric heater, from the current regulator No. 22. The amount of liquid helium sent to other liquid helium storage tanks 16 is regulated by evaporation within the tank.
本実施例では、真空保冷槽外の他の液体ヘリウム貯槽の
液体ヘリウムの液面制御を、真空保冷槽内の液体ヘリウ
ム貯槽の液体ヘリウムの液面を制御せずに行えるため二
他のｉ体ヘリウム貯槽の液体ヘリウムの液面制御システ
ムを簡略化できる。In this embodiment, the liquid helium level in the other liquid helium storage tank outside the vacuum cold storage tank can be controlled without controlling the liquid helium level in the liquid helium storage tank inside the vacuum cold storage tank. The liquid helium level control system in the helium storage tank can be simplified.
□〔発明の効果〕
本発明は、以上説明したようｉこ、真空保冷槽外の他の
液体ヘリウム貯槽の液体ヘリウムの液面制御を、真空保
冷槽内の液体ヘリウム貯槽の液体ヘリウムを該液体ヘリ
ウム貯槽内で蒸発させて該液体ヘリウム貯槽からの他の
液体ヘリウム貯槽への液体ヘリウム供給量を調節して行
うことで、他の液体ヘリウム貯槽の液体ヘリウムの液面
制御を液体ヘリウム貯槽の液体ヘリウムの液面を制御せ
ずに行えるので、他の液体ヘリウム貯槽の液体ヘリラム
の液面制御システムを簡略化できるという効果がある。□ [Effects of the Invention] As explained above, the present invention can control the level of liquid helium in another liquid helium storage tank outside the vacuum cold storage tank by controlling the liquid helium in the liquid helium storage tank inside the vacuum cold storage tank. By evaporating liquid helium in a helium storage tank and adjusting the amount of liquid helium supplied from the liquid helium storage tank to other liquid helium storage tanks, the liquid level of the liquid helium in the other liquid helium storage tanks can be controlled. Since this can be done without controlling the helium liquid level, it has the effect of simplifying the liquid helium liquid level control system of other liquid helium storage tanks.
図面は、本発明を実施したヘリウム液化冷凍装置の一例
を示す系統図である。
■・・・・・・真空保冷槽、Ｊｌ・・・・・・液体ヘリ
ウム貯槽、１４．１５・・・・・・配管、１６・・・・
・・他の液体ヘリウム貯槽、１９・・・・・・超電導液
面検知器、加・・・・・・電気ヒータ、。４・・・・・
・液面制御器、ｎ・・・・・・電流調節器代理人 弁理
士 高 橋 明 夫
乃−−−電奴ヒータThe drawing is a system diagram showing an example of a helium liquefaction refrigeration system embodying the present invention. ■...Vacuum cold storage tank, Jl...Liquid helium storage tank, 14.15...Piping, 16...
...Other liquid helium storage tanks, 19...Superconducting liquid level detectors, heating...Electric heaters, etc. 4...
・Liquid level controller, n...Current regulator agent Patent attorney Akira Takahashi Yuno---Electric heater
Claims (1)
槽外に他の液体ヘリウム貯槽を有し、該他の液体ヘリウ
ム貯槽と前記液体ヘリウム貯槽とを配管で連結したヘリ
ウム液化冷凍装置において、前記他の液体ヘリウム貯槽
の液体ヘリウムの液面制御を、前記液体ヘリウム貯槽の
液体ヘリウムを該液体ヘリウム貯槽内で蒸発させて該液
外ヘリウム貯槽から他の液体ヘリウム貯槽への液体ヘリ
ウム供給量を調節して行うことを特徴とするヘリウム液
化冷凍装置の運転方法。1. In a helium liquefaction refrigeration system having an extra-liquid helium storage tank inside a vacuum cold storage tank and another liquid helium storage tank outside the vacuum cold storage tank, and connecting the other liquid helium storage tank and the liquid helium storage tank with piping. , the level of liquid helium in the other liquid helium storage tank is controlled by evaporating the liquid helium in the liquid helium storage tank in the liquid helium storage tank to supply the amount of liquid helium from the extra-liquid helium storage tank to the other liquid helium storage tank. 1. A method of operating a helium liquefaction refrigeration system, characterized in that the operation is carried out by adjusting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14231084A JPS6122159A (en) | 1984-07-11 | 1984-07-11 | Method of operating helium liquefying refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14231084A JPS6122159A (en) | 1984-07-11 | 1984-07-11 | Method of operating helium liquefying refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6122159A true JPS6122159A (en) | 1986-01-30 |
Family
ID=15312383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14231084A Pending JPS6122159A (en) | 1984-07-11 | 1984-07-11 | Method of operating helium liquefying refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6122159A (en) |
-
1984
- 1984-07-11 JP JP14231084A patent/JPS6122159A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6399459A (en) | Method and system of obtaining package of plurality of separate discrete low-temperature liquefied co2 | |
| JP3123126B2 (en) | Vacuum container with cooler | |
| JPS6060463A (en) | Liquefied gas generator | |
| JPS6122159A (en) | Method of operating helium liquefying refrigerator | |
| US20230304731A1 (en) | Facility and method for refrigerating a fluid | |
| JP2841955B2 (en) | Supercritical helium cooling device and operating method thereof | |
| JPH1019402A (en) | Low temperature refrigeration system by gas turbine | |
| JPH02136687A (en) | Utilization of cold heat effected by accumulating coil heat of low-temperature liquefied gas | |
| JPH0689955B2 (en) | Cryogenic refrigerator | |
| JP3113990B2 (en) | Helium liquefaction refrigeration apparatus and operating method thereof | |
| JPH0643647Y2 (en) | Cryogenic refrigerator | |
| JPS59117281A (en) | Cooling apparatus | |
| JP2602982B2 (en) | Cooling system | |
| JPH0317490A (en) | Production method of liquefied co2 | |
| JPS63152798A (en) | Method of storing cryogenic heat in cryogenic liquid storage tank | |
| JPS5951155B2 (en) | superconducting device | |
| JP2574823B2 (en) | Operation control method of cryogenic refrigeration refrigeration system | |
| JPS6266067A (en) | Helium cooling device | |
| JPS5816137A (en) | Water cooling device for air conditioner | |
| JPS59180270A (en) | Air liquefying method utilizing cold heat of liquefied natural gas | |
| JPH01150756A (en) | Cryogenic cooling device | |
| JPH0227828B2 (en) | ||
| JPH09106906A (en) | Conductive cooling superconducting magnet | |
| JPS615586A (en) | Control for refrigeration | |
| JPS63187066A (en) | Cryogenic refrigerator |