JPH0173690U - - Google Patents
Info
- Publication number
- JPH0173690U JPH0173690U JP1987168540U JP16854087U JPH0173690U JP H0173690 U JPH0173690 U JP H0173690U JP 1987168540 U JP1987168540 U JP 1987168540U JP 16854087 U JP16854087 U JP 16854087U JP H0173690 U JPH0173690 U JP H0173690U
- Authority
- JP
- Japan
- Prior art keywords
- nitrogen
- gas
- product liquefied
- oxygen
- controlling
- 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 claims description 52
- 229910052757 nitrogen Inorganic materials 0.000 claims description 22
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 8
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 7
- 229910001882 dioxygen Inorganic materials 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims 3
- 238000005070 sampling Methods 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Description
第１図は、本考案に係る窒素ガスおよび／又は
酸素ガスの液化装置の系統図であり、実線部は従
来の系統図、点線部は本考案に係り、追加された
系統図、第２図は圧縮材の容量（％）と効率（η
）との関係を示すグラフである。
１……循環窒素圧縮機、２……Ｎｏ．１低圧循
環窒素圧縮機、３……Ｎｏ．２低圧循環窒素圧縮
機、４……窒素精留塔、５……窒素昇圧機、６…
…中圧膨張タービン、７……低圧膨張タービン、
８……フロン冷凍機、９……窒素、酸素予冷器、
１０……窒素、酸素冷却器、１１……窒素熱交換
器、１２……第１液化器、１３……第２液化器、
１４……液化窒素過冷却器、１５……原料酸素ガ
ス配管、１６……原料窒素ガス配管、１７……製
品液化酸素流量計、１８……製品液化窒素流量計
、１９……液化酸素抽出配管、２０……液化窒素
抽出配管、２１……窒素補給弁、２２……循環窒
素圧縮機バイパス弁、２３……Ｎｏ．１低圧窒素
循環圧縮機バイパス弁、２４……Ｎｏ．２低圧窒
素循環圧縮機バイパス弁、２５……流量調節弁、
２６……流量調節弁、２７……液面調節弁、２８
……温度調節弁、２９……温度調節弁、３０……
製品液化酸素抽出弁、３１……製品液化窒素抽出
弁、３２……制御用マイコン、３３……低圧窒素
熱交換器、Ｎ２……原料窒素ガス、ＰＮ２……製
品液化窒素ガス、Ｏ２……原料酸素ガス、ＰＯ２
……製品液化酸素ガス。
Fig. 1 is a system diagram of a nitrogen gas and/or oxygen gas liquefaction device according to the present invention, the solid line section is the conventional system diagram, the dotted line section is the system diagram added according to the present invention, and Fig. 2 are the capacity (%) and efficiency (η
) is a graph showing the relationship between 1... Circulating nitrogen compressor, 2... No. 1 Low pressure circulating nitrogen compressor, 3...No. 2. Low-pressure circulating nitrogen compressor, 4... Nitrogen rectifier, 5... Nitrogen booster, 6...
...medium pressure expansion turbine, 7...low pressure expansion turbine,
8...Freon refrigerator, 9...Nitrogen, oxygen precooler,
10... Nitrogen, oxygen cooler, 11... Nitrogen heat exchanger, 12... First liquefier, 13... Second liquefier,
14...Liquid nitrogen supercooler, 15...Material oxygen gas piping, 16...Material nitrogen gas piping, 17...Product liquefied oxygen flowmeter, 18...Product liquefied nitrogen flowmeter, 19...Liquid oxygen extraction piping , 20...Liquid nitrogen extraction piping, 21...Nitrogen supply valve, 22...Circulating nitrogen compressor bypass valve, 23...No. 1 Low pressure nitrogen circulation compressor bypass valve, 24...No. 2 low pressure nitrogen circulation compressor bypass valve, 25...flow control valve,
26...Flow rate control valve, 27...Liquid level control valve, 28
... Temperature control valve, 29 ... Temperature control valve, 30 ...
Product liquefied oxygen extraction valve, 31... Product liquefied nitrogen extraction valve, 32... Control microcomputer, 33... Low pressure nitrogen heat exchanger, N 2 ... Raw material nitrogen gas, PN 2 ... Product liquefied nitrogen gas, O 2 ... Raw material oxygen gas, PO2
...Product liquefied oxygen gas.
Claims (1)
寒冷源とし、液化窒素ガスの窒素純度を上げるた
めの窒素精留サイクルを有し、窒素ガスと酸素ガ
スとを同時に液化することのできる窒素ガスおよ
び酸素ガス液化装置において、 窒素精留サイクル系に複数の低圧循環窒素圧縮
機を具え、さらに製品液化ガス流量計と、この製
品液化ガス計量計の出力信号にもとづき製品液化
ガスの採取流量に応じて、複数の低圧循環窒素圧
縮機の組合せを変更して制御運転する制御装置を
具えたことを特徴とする窒素ガスおよび酸素ガス
の液化装置。[Scope of Claim for Utility Model Registration] The main cold source is a cold generation cycle using nitrogen gas circulation, and it has a nitrogen rectification cycle to increase the nitrogen purity of liquefied nitrogen gas, and simultaneously liquefies nitrogen gas and oxygen gas. The nitrogen rectification cycle system is equipped with multiple low-pressure circulating nitrogen compressors, and the product liquefied gas is controlled based on the output signal of the product liquefied gas flow meter and the product liquefied gas meter. A liquefaction device for nitrogen gas and oxygen gas, comprising a control device for controlling and controlling a combination of a plurality of low-pressure circulating nitrogen compressors according to the sampling flow rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987168540U JPH0173690U (en) | 1987-11-05 | 1987-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987168540U JPH0173690U (en) | 1987-11-05 | 1987-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0173690U true JPH0173690U (en) | 1989-05-18 |
Family
ID=31457806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987168540U Pending JPH0173690U (en) | 1987-11-05 | 1987-11-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0173690U (en) |
-
1987
- 1987-11-05 JP JP1987168540U patent/JPH0173690U/ja active Pending
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