JPS6365873B2 - - Google Patents
Info
- Publication number
- JPS6365873B2 JPS6365873B2 JP13195283A JP13195283A JPS6365873B2 JP S6365873 B2 JPS6365873 B2 JP S6365873B2 JP 13195283 A JP13195283 A JP 13195283A JP 13195283 A JP13195283 A JP 13195283A JP S6365873 B2 JPS6365873 B2 JP S6365873B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- pressure
- ejector
- oil
- liquefied
- 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.)
- Expired
Links
- 239000003921 oil Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 42
- 238000000034 method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Description
【発明の詳細な説明】
この発明は冷凍循環系によるガス液化冷却方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas liquefaction cooling method using a refrigeration circulation system.
アフター・クーラを備えたガスを圧縮するコン
プレツサと、少なくとも一部分ガスを液化する冷
却手段と、液化されたガスを収容する直列に接続
された２組のタンクとを有し、冷却手段に続いて
設けられた第１のタンクのガス室がコンプレツサ
の吸込側と接続されており、第２のタンクのガス
室がエゼクタの吸込側と接続されており、エゼク
タの吐出側がコンプレツサの吸込側と、エゼクタ
の噴射ビーム入口がコンプレツサの吐出側と接続
されたガス液化装置は公知である（特開昭54−
89976号）。 A compressor for compressing a gas with an after-cooler, a cooling means for at least partially liquefying the gas, and two sets of tanks connected in series for containing the liquefied gas, the compressor being provided subsequent to the cooling means. The gas chamber of the first tank is connected to the suction side of the compressor, the gas chamber of the second tank is connected to the suction side of the ejector, and the discharge side of the ejector is connected to the suction side of the compressor and the ejector. A gas liquefaction device in which the injection beam inlet is connected to the discharge side of a compressor is known (Japanese Patent Application Laid-Open No. 1989-1999).
No. 89976).
この公知の装置ではガス圧縮機は冷却工程へ送
られるガスのほかに、エゼクタの噴射流体として
用いられるガスも同時に圧縮しなければならな
い。エゼクタ用のガスは、実際に冷却工程に送ら
れ液化冷凍に用いられるガスの10〜20％の量に上
るのが一般であるから、ガス圧縮機は大型とな
り、その消費エネルギーもそれだけ多く必要とす
ることになる。 In this known device, the gas compressor must simultaneously compress not only the gas that is sent to the cooling process but also the gas that is used as the injection fluid of the ejector. Generally, the amount of gas for the ejector is 10 to 20% of the gas actually sent to the cooling process and used for liquefaction refrigeration, so the gas compressor is large and requires a correspondingly large amount of energy. I will do it.
この発明は、上記のような公知装置（方法）を
改良し、一層少ないエネルギーで目的を達するガ
ス液化冷却方法を提供するものであり、圧縮され
たガスを冷媒との熱交換及び膨張によつて液化
し、液化されたガスの貯留帯域における気化ガス
を、高圧流体を噴射流体とするエゼクタで吸引し
て昇圧し、このガスを液体除去後に前記圧縮工程
にかけることを特徴とするものである。 This invention improves the known apparatus (method) as described above and provides a gas liquefaction cooling method that achieves the objective with even less energy. The method is characterized in that the vaporized gas in the storage zone of the liquefied gas is suctioned and pressurized by an ejector using a high-pressure fluid as an injection fluid, and this gas is subjected to the compression step after the liquid is removed.
この発明によれば、気化ガス吸引用エゼクタの
噴射流体として圧縮に多くのエネルギーを消費す
るガスを使用せず、圧縮（昇圧）エネルギーが少
なくてすむ液体を使用するので消費エネルギーを
少なくすることができるし、またエゼクタでの圧
縮比もガスによる場合と比較して大きくとれる。 According to this invention, a gas that consumes a lot of energy for compression is not used as the injection fluid of the ejector for sucking vaporized gas, but a liquid that requires less compression (pressurization) energy is used, so energy consumption can be reduced. In addition, the compression ratio in the ejector can be increased compared to when using gas.
次に、図面を用いて本発明の方法を詳細に説明
する。 Next, the method of the present invention will be explained in detail using the drawings.
図は、本発明の方法の１実施例を示すフローシ
ートである。 The figure is a flow sheet illustrating one embodiment of the method of the invention.
液化すべきガスはガス圧縮機１で所要圧力まで
圧縮され、アフター・クーラ２で冷却され油分を
除去された後、管路３から熱交換器４で後記する
気化冷ガスと間接熱交換して少なくともその一部
が液化するまで冷却される。次いで一部液化した
ガスは、膨張弁５により所要圧まで減圧されて完
全に液化し、タンク６に貯留されて、液化ガスと
して取出したり、必要に応じてタンク６内で、被
冷却物の冷却に使用される。 The gas to be liquefied is compressed to a required pressure in a gas compressor 1, cooled in an aftercooler 2 to remove oil, and then indirectly heat exchanged with vaporized cold gas, which will be described later, from a pipe 3 in a heat exchanger 4. It is cooled until at least a portion of it liquefies. The partially liquefied gas is then reduced to a required pressure by the expansion valve 5 and completely liquefied, stored in a tank 6 and taken out as liquefied gas, or used to cool objects to be cooled in the tank 6 as needed. used for.
タンク６内で気化したガスは管路７から取出さ
れ、前記熱交換器４で被冷却ガスの冷却に使用さ
れ、常温付近まで昇温してエゼクタ８の吸入部９
に送られる。エゼクタ８の噴射流体入口１０に
は、前記ガス圧縮機１に付属する潤滑油昇圧ポン
プ１１で昇圧された潤滑油が管路１２を通つて送
られる。エゼクタ８に送られてきた管路７からの
ガスは前記高圧油によつて吸引され、大気圧付近
まで昇圧して管路１３から吐出される。吐出され
たガスは油分離器１４で油と分離された後、管路
１５から前記ガス圧縮機１に導入され、ガス冷却
循環系が完成される。油分離器１４で分離された
油は管路１６によつてポンプ１１に戻される。１
７はガス圧縮機１への潤滑油供給管、１８は同じ
く戻り管路である。 The gas vaporized in the tank 6 is taken out from the pipe line 7, used for cooling the gas to be cooled in the heat exchanger 4, and heated to around room temperature, and then transferred to the suction section 9 of the ejector 8.
sent to. Lubricating oil pressurized by a lubricating oil booster pump 11 attached to the gas compressor 1 is sent to the injection fluid inlet 10 of the ejector 8 through a pipe line 12. The gas from the pipe line 7 sent to the ejector 8 is sucked by the high-pressure oil, raised to near atmospheric pressure, and discharged from the pipe line 13. The discharged gas is separated from oil in an oil separator 14, and then introduced into the gas compressor 1 through a pipe 15, thereby completing a gas cooling circulation system. The oil separated in the oil separator 14 is returned to the pump 11 through a pipe 16. 1
7 is a lubricating oil supply pipe to the gas compressor 1, and 18 is a return pipe.
このように本発明では、エゼクタ８の噴射流体
として、油を用いるので昇圧のためのエネルギー
の少なくてすむポンプが使用でき、公知装置より
経済的に優れている。また噴射流体として油（液
体）を使用することにより、エゼクタにおける圧
縮比も、ガスを使用した場合に比べて大きくとる
ことができる。しかも、上記実施例では、昇圧用
ポンプとしてガス圧縮機の潤滑油用付属ポンプを
使用しているので、このポンプの容量を大きくし
たとしても（公知装置では、本発明より容量の大
きいガス圧縮機を使用する）一層有利に本発明を
実施できる。しかし、本発明は上記実施例に限定
されるものでなく、噴射流体としての油の昇圧
を、ガス圧縮機の付属ポンプと別個のポンプで行
つてもよいことはもちろんである。この場合、ポ
ンプが別個であるから噴射流体は油に限られるこ
とはなく、水その他の液体も使用することができ
る。液化すべきガスとしては、窒素、水素、ヘリ
ウム等何でもよいが、油を噴射流体とする場合は
酸素は除かれる。 As described above, in the present invention, since oil is used as the injection fluid of the ejector 8, a pump that requires less energy for pressure increase can be used, and is economically superior to known devices. Furthermore, by using oil (liquid) as the injection fluid, the compression ratio in the ejector can be increased compared to when gas is used. Moreover, in the above embodiment, the attached pump for lubricating oil of the gas compressor is used as the pressure boosting pump, so even if the capacity of this pump is increased (in the known device, a gas compressor with a larger capacity than the present invention is used). The present invention can be carried out even more advantageously using However, the present invention is not limited to the above-described embodiment, and it goes without saying that the pressure of oil as the injection fluid may be increased by a pump separate from the pump attached to the gas compressor. In this case, since the pump is separate, the injection fluid is not limited to oil, but water or other liquids can also be used. The gas to be liquefied may be any gas such as nitrogen, hydrogen, helium, etc., but when oil is used as the injection fluid, oxygen is excluded.
上記実施例では、熱交換器４の冷却源として液
化したガスの気化冷ガスのみを用いているが、他
の冷却源、たとえば、ヘリウムを液化する際に液
化窒素を併用することもできる。 In the above embodiment, only the vaporized cold gas of the liquefied gas is used as the cooling source for the heat exchanger 4, but other cooling sources such as liquefied nitrogen can also be used when helium is liquefied.
添付図面は本発明方法の一実施例を示すフロー
シートであり、図中、１はガス圧縮機、２はアフ
ター・クーラ、４は熱交換器、５は膨張弁、６は
タンク、８はエゼクタ、９は吸入部、１０は噴射
流体入口、１１は潤滑油昇圧ポンプ、１４は油分
離器であり、その他は管路を示す。
The attached drawing is a flow sheet showing an embodiment of the method of the present invention, and in the drawing, 1 is a gas compressor, 2 is an aftercooler, 4 is a heat exchanger, 5 is an expansion valve, 6 is a tank, and 8 is an ejector. , 9 is a suction part, 10 is an injection fluid inlet, 11 is a lubricating oil pressure pump, 14 is an oil separator, and the others are pipelines.
Claims (1)
よつて液化し、液化されたガスの貯留帯域におけ
る気化ガスを、高圧液体を噴射流体とするエゼク
タで吸引して昇圧し、このガスを液体除去後に前
記圧縮工程にかけることを特徴とするガス液化冷
却方法。 ２ 前記高圧液体が高圧油である特許請求の範囲
第１項のガス液化冷却方法。 ３ 前記高圧油が、前記圧縮工程における潤滑油
とともに昇圧される特許請求の範囲第２項のガス
液化冷却方法。[Claims] 1. Compressed gas is liquefied by heat exchange with a refrigerant and expansion, and vaporized gas in a storage zone of the liquefied gas is sucked by an ejector using high-pressure liquid as an injection fluid to increase the pressure. A gas liquefaction cooling method characterized in that the gas is subjected to the compression step after liquid removal. 2. The gas liquefaction cooling method according to claim 1, wherein the high pressure liquid is high pressure oil. 3. The gas liquefaction cooling method according to claim 2, wherein the pressure of the high-pressure oil is increased together with the lubricating oil in the compression step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13195283A JPS6026276A (en) | 1983-07-21 | 1983-07-21 | Method of liquefying and cooling gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13195283A JPS6026276A (en) | 1983-07-21 | 1983-07-21 | Method of liquefying and cooling gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6026276A JPS6026276A (en) | 1985-02-09 |
| JPS6365873B2 true JPS6365873B2 (en) | 1988-12-19 |
Family
ID=15070042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13195283A Granted JPS6026276A (en) | 1983-07-21 | 1983-07-21 | Method of liquefying and cooling gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026276A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5829201B2 (en) * | 2011-11-18 | 2015-12-09 | 住友重機械工業株式会社 | refrigerator |
-
1983
- 1983-07-21 JP JP13195283A patent/JPS6026276A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6026276A (en) | 1985-02-09 |
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