JPH01111183A - Liquefied-gas storage vessel - Google Patents
Liquefied-gas storage vesselInfo
- Publication number
- JPH01111183A JPH01111183A JP26641287A JP26641287A JPH01111183A JP H01111183 A JPH01111183 A JP H01111183A JP 26641287 A JP26641287 A JP 26641287A JP 26641287 A JP26641287 A JP 26641287A JP H01111183 A JPH01111183 A JP H01111183A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- refrigerating machine
- inverter
- liquefied nitrogen
- capacity
- 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
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 43
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 18
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 7
- 238000003384 imaging method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/17—Re-condensers
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は液化ガス貯蔵容器に係り、特に容器内に被冷却
体を収納したものに好適な液化ガス貯蔵容器に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquefied gas storage container, and more particularly to a liquefied gas storage container suitable for storing an object to be cooled within the container.
従来の装置は、アイ・イー・イー・イー、トランザクシ
ョン オン エレクトロン デバイシーズ、ボリューム
イー デイ−３４，１（１９８７）第４頁から第７頁
（ＩＢＥＥ ＴＲＡＮ８ＡＣＴＩＯＮＳ ＯＮ
ＥＬＥＣＴＲＯＮ ＤｇＶＩＣＥ８゜ＶＯＬ Ｆｉ
Ｄ３４゜Ｎｏｔ、ＪＡＮＵＡＲＹ １９８７ＰＰ４−
７） において論じらｎている。Conventional devices are described in IE, Transactions on Electron Devices, Volume E Day-34, 1 (1987), pages 4 to 7 (IBEE TRAN8ACTIONS ON).
ELECTRON DgVICE8゜VOL Fi
D34゜Not, JANUARY 1987PP4-
7) is discussed in.
上記従来技術は、液体窒素の消耗を抑制するために装置
内に窒素ガス液化システムが組込まｎているが、窒素の
蒸発量と液化量をバランスさせることは困難で、液体窒
素槽を封じると加圧状態となるので安全弁等により大気
に窒素ガスを放出する。このため液体窒素が減るので人
力により定期的な供給をしなくてはならないという問題
があった。In the above conventional technology, a nitrogen gas liquefaction system is built into the device in order to suppress the consumption of liquid nitrogen, but it is difficult to balance the amount of nitrogen evaporation and the amount of liquefaction, and if the liquid nitrogen tank is sealed, the Since the pressure is high, nitrogen gas is released into the atmosphere using a safety valve, etc. As a result, the amount of liquid nitrogen decreases, and there is a problem in that it has to be periodically supplied manually.
本発明の目的は、この人力による定期的な液体ガスの供
給をなくすことのできる液化ガス貯蔵容器を提供するこ
とにある。An object of the present invention is to provide a liquefied gas storage container that can eliminate the need for regular manual supply of liquid gas.
上記目的は、密閉した容器内の圧力を測定する圧力計と
、圧力計の測定値とあらかじめ設定した値とを比較し比
較結果を出力する制御装置と、制御装置によって制御さ
れるインバータと、インバータに接続さｎ容器内に寒冷
発生部を挿入した冷凍機とを具備することにより、達成
さｎる。The above purpose is to provide a pressure gauge that measures the pressure inside a sealed container, a control device that compares the measured value of the pressure gauge with a preset value and outputs the comparison result, an inverter controlled by the control device, and an inverter. This is achieved by having a refrigerator connected to the container and a refrigerator having a cold generating section inserted into the container.
密閉した容器に取り付けた圧力計から制御装置に測定値
を入力し、制御装置によりあらかじめ設定した値と比較
し、比較した結果を信号に換えてインバータに出力し、
インバータを制御する。インバータによって、加圧状態
の時には冷凍機の液化能力を増化させ、負圧状態の時に
は冷凍機の液化能力を低下させて容器内の圧力バランス
を保つことにより１人力による定期的な液体窒素の供給
をなくすことができる。The measured value is input to the control device from the pressure gauge attached to the sealed container, compared with the value set in advance by the control device, and the comparison result is converted into a signal and output to the inverter.
Control the inverter. The inverter increases the liquefaction capacity of the refrigerator when the pressure is on, and reduces the liquefaction capacity of the refrigerator when the pressure is negative, thereby maintaining the pressure balance within the container. supply can be eliminated.
以下、本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
第１図は１例えば、ＭＲイメージング装置等に用いられ
ている液化ガス貯蔵容器であり、液化冷媒ガスとしては
１例えば、窒素ガスである。ＭＲイメージグ装置ｌ内に
ある液体窒素槽２には、窒素ガス液化用の冷凍機３およ
び液体窒素槽２内の圧力を測定する圧力計５が取付けら
れている。圧力計５からの信号は、圧力計５につながれ
た制御装置６に送られる。FIG. 1 shows a liquefied gas storage container used, for example, in an MR imaging apparatus, and the liquefied refrigerant gas is, for example, nitrogen gas. A liquid nitrogen tank 2 in the MR imaging apparatus 1 is equipped with a refrigerator 3 for liquefying nitrogen gas and a pressure gauge 5 for measuring the pressure inside the liquid nitrogen tank 2. A signal from the pressure gauge 5 is sent to a control device 6 connected to the pressure gauge 5.
次に制御装置６からの出力によりインバータフを制御す
る。インバータ７により冷凍機３を駆動させる圧縮機ユ
ニット４の能力をコントロールし。Next, the inverter is controlled by the output from the control device 6. The capacity of the compressor unit 4 that drives the refrigerator 3 is controlled by the inverter 7.
冷凍ａ３の寒冷発生量を変える。制御装置６は、この場
合、圧力計５によって測定した圧力値とあらかじめ設定
した基準圧力値とを比較し圧力差を算出して、この圧力
差に対応した信号をインバータ７に人力し、インバータ
７を制御する。Change the amount of cold generated by Frozen A3. In this case, the control device 6 calculates a pressure difference by comparing the pressure value measured by the pressure gauge 5 with a preset reference pressure value, and manually outputs a signal corresponding to this pressure difference to the inverter 7. control.
また、液体窒素槽２は真空断熱さｎた密閉容器であり、
このため、液体窒素（ＬＮ３）が蒸発すると液体窒素槽
２内の圧力は加圧さね、また、冷凍機３によって気化し
た窒素ガス（ＧＮ２ ）が凝縮されると液体窒素槽２内
の圧力は減圧さｎる。こｎを制御装置６によって制御す
る。圧力計５からの信号によって、設定圧力値よりも加
圧状態の時に・ ３ ・
は冷凍機３の液化能力を増加させ、負圧状態の時には冷
凍機３の冷凍能力低下させて圧力バランスを保つ。Further, the liquid nitrogen tank 2 is a vacuum-insulated sealed container,
Therefore, when the liquid nitrogen (LN3) evaporates, the pressure inside the liquid nitrogen tank 2 increases, and when the nitrogen gas (GN2) vaporized by the refrigerator 3 condenses, the pressure inside the liquid nitrogen tank 2 increases. Reduce pressure. This is controlled by a control device 6. Based on the signal from the pressure gauge 5, when the pressure is higher than the set pressure value, the liquefaction capacity of the refrigerator 3 is increased, and when the pressure is negative, the refrigeration capacity of the refrigerator 3 is decreased to maintain the pressure balance. .
以上、木−実施例によれば人力による定期的な液体窒素
の供給をしなくてよいという効果がある。As described above, the third embodiment has the advantage that it is not necessary to periodically supply liquid nitrogen manually.
本発明によれば、容器内の圧力によって冷凍機をインバ
ータ制御することにより、人力による定期的な液体窒素
の供給をなくすことができるという効果がある。According to the present invention, by controlling the refrigerator using an inverter based on the pressure inside the container, it is possible to eliminate the need for regular manual supply of liquid nitrogen.
第１図は本発明の一実施例である液化ガス貯蔵容器の構
成図である。
２・・・・・・液体窒素槽、３・・・・・・冷凍機、４
・・・・・・圧縮機ユニット、５・・・・・・圧力計、
６・・・・・・制御装置、７・ ４ ・FIG. 1 is a block diagram of a liquefied gas storage container according to an embodiment of the present invention. 2...Liquid nitrogen tank, 3...Freezer, 4
... Compressor unit, 5 ... Pressure gauge,
6... Control device, 7. 4.
Claims (1)
器内の圧力を測定する圧力計と、該圧力計の測定値とあ
らかじめ設定した値とを比較し比較結果を出力する制御
装置と、該制御装置によって制御されるインバータと、
該インバータに接続され前記容器内に寒冷発生部を挿入
した冷凍機とを具備したことを特徴とする液化ガス貯蔵
容器。1. In a storage container containing liquefied gas, a pressure gauge that measures the pressure inside the sealed container, a control device that compares the measured value of the pressure gauge with a preset value and outputs a comparison result, and the control device. an inverter controlled by the device;
A liquefied gas storage container comprising: a refrigerator connected to the inverter and having a cold generating section inserted into the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26641287A JPH01111183A (en) | 1987-10-23 | 1987-10-23 | Liquefied-gas storage vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26641287A JPH01111183A (en) | 1987-10-23 | 1987-10-23 | Liquefied-gas storage vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01111183A true JPH01111183A (en) | 1989-04-27 |
Family
ID=17430575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26641287A Pending JPH01111183A (en) | 1987-10-23 | 1987-10-23 | Liquefied-gas storage vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01111183A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01159576A (en) * | 1987-12-16 | 1989-06-22 | Hitachi Ltd | Cryostat |
| JPH04116363A (en) * | 1990-09-05 | 1992-04-16 | Mitsubishi Electric Corp | Cryogenic apparatus |
| JP2002106991A (en) * | 2000-09-29 | 2002-04-10 | Sanyo Electric Co Ltd | Helium compressor unit |
| EP1376033A3 (en) * | 2002-06-28 | 2005-08-03 | Sanyo Electric Co., Ltd. | Preserving system |
| US7251949B2 (en) | 2004-02-09 | 2007-08-07 | Sanyo Electric Co., Ltd. | Refrigerant system |
| WO2006125060A3 (en) * | 2005-05-17 | 2007-11-01 | Praxair Technology Inc | Cryogenic biological preservation unit with active cooling |
-
1987
- 1987-10-23 JP JP26641287A patent/JPH01111183A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01159576A (en) * | 1987-12-16 | 1989-06-22 | Hitachi Ltd | Cryostat |
| JPH04116363A (en) * | 1990-09-05 | 1992-04-16 | Mitsubishi Electric Corp | Cryogenic apparatus |
| JP2002106991A (en) * | 2000-09-29 | 2002-04-10 | Sanyo Electric Co Ltd | Helium compressor unit |
| EP1376033A3 (en) * | 2002-06-28 | 2005-08-03 | Sanyo Electric Co., Ltd. | Preserving system |
| US7251949B2 (en) | 2004-02-09 | 2007-08-07 | Sanyo Electric Co., Ltd. | Refrigerant system |
| WO2006125060A3 (en) * | 2005-05-17 | 2007-11-01 | Praxair Technology Inc | Cryogenic biological preservation unit with active cooling |
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