JPH0492197A - Storage tank for extremely low temperature liquid and gas blowing precooling method of pipeline - Google Patents
Storage tank for extremely low temperature liquid and gas blowing precooling method of pipelineInfo
- Publication number
- JPH0492197A JPH0492197A JP20390890A JP20390890A JPH0492197A JP H0492197 A JPH0492197 A JP H0492197A JP 20390890 A JP20390890 A JP 20390890A JP 20390890 A JP20390890 A JP 20390890A JP H0492197 A JPH0492197 A JP H0492197A
- Authority
- JP
- Japan
- Prior art keywords
- storage tank
- low temperature
- extremely low
- supplying
- temperature liquid
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 4
- 238000007664 blowing Methods 0.000 title abstract description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- OJYGBLRPYBAHRT-UHFFFAOYSA-N alphachloralose Chemical compound O1C(C(Cl)(Cl)Cl)OC2C(O)C(C(O)CO)OC21 OJYGBLRPYBAHRT-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、極低温液体用貯蔵タンクおよび配管系の液充
填に適用される極低温液体用貯蔵タンクおよび配管のガ
ス吹込み予冷法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gas injection precooling method for cryogenic liquid storage tanks and piping, which is applied to liquid filling of cryogenic liquid storage tanks and piping systems.
第２図に示すように、極低温液体を取扱う貯蔵タンクお
よび配管系５は、内部での蒸発を抑制するだめに、断熱
施工ａが成されている。As shown in FIG. 2, the storage tank and piping system 5 that handle the cryogenic liquid are thermally insulated (a) in order to suppress evaporation inside.
一方、貯蔵タンクおよび配管系５に極低温液体を導入す
るためには、常温状態から徐々に極低温液体温度（−１
００℃以下）まで冷却する必要がある。急冷を行なうと
熱衝撃のため構造部材の破損を引き起こすことがある。On the other hand, in order to introduce the cryogenic liquid into the storage tank and piping system 5, the cryogenic liquid temperature (-1
It is necessary to cool down to 00°C or below. Rapid cooling can cause damage to structural members due to thermal shock.
そのため、貯槽又はローリ−３から液導入を行なう場合
には、出目弁４の開度を絞り液の流出量を抑えてその液
の低温蒸発ガスによる冷却が従来実施されている。Therefore, when liquid is introduced from the storage tank or the lorry 3, the opening of the outlet valve 4 is limited to suppress the amount of liquid flowing out, and the liquid is cooled by low-temperature evaporated gas.
［発明が解決しようとする課題］
上記従来の方法では、貯蔵タンクおよび配管系５が大型
な場合には、液流路の片寄り（下側だけ走る）により片
冷えが起り、高い熱応力が発生する恐れがあった。[Problems to be Solved by the Invention] In the above-mentioned conventional method, when the storage tank and piping system 5 are large, the liquid flow path is lopsided (running only on the lower side), causing unilateral cooling and high thermal stress. There was a risk that this would occur.
又、被冷却体すなわち貯蔵タンクおよび配管系の構造重
量の冷却熱量に対して導入可能な極低温液流量（入熱に
よって蒸発し得る液量によって定まる）の差が大きく、
冷却に要する時間が長くなった。In addition, there is a large difference in the flow rate of cryogenic liquid that can be introduced (determined by the amount of liquid that can be evaporated due to heat input) with respect to the amount of cooling heat for the structural weight of the object to be cooled, that is, the storage tank and piping system.
The time required for cooling has become longer.
本発明と上記課題を解決するため次の手段を講する。 In order to solve the present invention and the above problems, the following measures are taken.
すなわち、極低温液体用貯蔵タンクおよび配管のガス吹
込み予冷法として、極低温液体用貯蔵タンクおよび配管
系に極低温液体を供給する場合、供給端から極低温液体
を供給するとともに同供給端部にガスを吹き込み極低温
液体を強制的に蒸発させて上記極低温液体用貯蔵タンク
および配管系を予冷するようにした。That is, when supplying a cryogenic liquid to a cryogenic liquid storage tank and piping system as a gas injection precooling method for a cryogenic liquid storage tank and piping, the cryogenic liquid is supplied from the supply end, and the cryogenic liquid is also supplied from the supply end. The cryogenic liquid was forcibly evaporated by blowing gas into the tank to pre-cool the cryogenic liquid storage tank and piping system.
上記手段により、極低温液体の供給端から極低温液体用
貯蔵タンクおよび配管系へ極低温液体が供給されるとと
もに同供給端部に常温ガスが吹き込まれ、極低／ＩＩ′
ａ体が強制的に蒸発される。その後上記極低温液体用貯
蔵タンクおよび配管系へ導入される。By the above means, the cryogenic liquid is supplied from the cryogenic liquid supply end to the cryogenic liquid storage tank and the piping system, and normal temperature gas is blown into the supply end.
The a-form is forcibly evaporated. It is then introduced into the cryogenic liquid storage tank and piping system.
したがって、配管および貯蔵タンク系内に均一な大量の
低温度のガスを満たずことか可能になり均一かつ急速な
予冷ができるようになる。Therefore, it is possible to fill the piping and storage tank system with a large volume of uniformly low temperature gas, allowing for uniform and rapid precooling.
また、吹き込む常温ガスの流量および蕉発する極低温液
体の流量を可変にすれば、冷却速度を適切な時間にコン
トロールできるようになる。Furthermore, by varying the flow rate of the room-temperature gas blown in and the flow rate of the cryogenic liquid emitted, the cooling rate can be controlled at an appropriate time.
［実施例］ 本発明の一実施例を第１Ｅにより説明する。[Example] An embodiment of the present invention will be described with reference to 1E.
極低温液体用貯蔵タンクおよび配管系５の人口ａに貯槽
またはローリ−３から出目弁４を持つ供給管６の出口端
（供給端）がつながれれる。また常温ガス供給ｆＡｌか
ら供給弁２を経てガス供給管７が上記供給管６の出口端
部に接続される。The outlet end (supply end) of a supply pipe 6 having an outlet valve 4 from the storage tank or lorry 3 is connected to the storage tank for cryogenic liquids and the port a of the piping system 5 . Further, a gas supply pipe 7 is connected from the normal temperature gas supply fAl through the supply valve 2 to the outlet end of the supply pipe 6.
以上の構成において、極低温液体用貯蔵タンクおよび配
管系５を予冷する場合、出口弁４を開き、極低温液体が
貯槽（又はローリ−）３から出目弁４を通して出てきた
所で常温ガス源１から常温ガスの供給弁２を介して常温
ガスを吹込んでやり、強制的に低温ガスを出口端部で発
生させ、下流側の貯蔵タンクおよび配管系５を予冷却す
る。このとき、常温ガスの供給弁２の開度を調整すると
ともに、極低温液体の貯槽５の出口弁４の開度を変え、
供給する極低温液体の量を制御でき予冷時間を任意に定
めることができる。In the above configuration, when pre-cooling the cryogenic liquid storage tank and the piping system 5, the outlet valve 4 is opened and the room temperature gas is Cold gas is injected from the source 1 through the cold gas supply valve 2, forcing cold gas to be generated at the outlet end to pre-cool the downstream storage tank and piping system 5. At this time, the opening degree of the room temperature gas supply valve 2 is adjusted, and the opening degree of the outlet valve 4 of the cryogenic liquid storage tank 5 is changed.
The amount of cryogenic liquid supplied can be controlled and the pre-cooling time can be arbitrarily determined.
このようにして、極低温液体を強制的に蒸発させ大量の
低温ガスを発生させることにより、配管および貯蔵タン
ク系５内に均一な温度のガスを満たすことが可能になり
片冷えを防止できる。In this way, by forcibly evaporating the cryogenic liquid and generating a large amount of low-temperature gas, it is possible to fill the piping and storage tank system 5 with gas at a uniform temperature, thereby preventing uneven cooling.
更に、吹き込む常温ガスの流量および蒸発する極低温液
体の流量を可変にすれば、冷却速度を適切な時間にコン
トロールできるようになる。Furthermore, by varying the flow rate of the room temperature gas blown in and the flow rate of the cryogenic liquid evaporated, it becomes possible to control the cooling rate at an appropriate time.
以上の場合、常温ガスは極低温液体と同種のものを使用
するが、貯蔵極低温液体の純度が問題にならない場合に
は、異種のものでもよい。In the above case, the same type of normal temperature gas as the cryogenic liquid is used, but if the purity of the stored cryogenic liquid is not an issue, a different type of gas may be used.
以上に説明したように本発明によれば大量の低温ガスを
導入することができ、貯蔵タンクおよび配管系の均一か
つ急速な予冷ができるようになる。As explained above, according to the present invention, a large amount of low-temperature gas can be introduced, and the storage tank and piping system can be uniformly and rapidly precooled.
第１図は本発明の一実施例の系統図、第２図は従来例の
系統図である。
１・・・常温ガス供給源、 ２・・・常温ガスの供給弁
、３・・・極低温液体貯槽又はローリ−
４・・・貯槽（又はローリ−）の出口弁、５・・・貯蔵
タンク、配管系（被冷却体）。FIG. 1 is a system diagram of an embodiment of the present invention, and FIG. 2 is a system diagram of a conventional example. 1... Normal temperature gas supply source, 2... Normal temperature gas supply valve, 3... Cryogenic liquid storage tank or lorry 4... Outlet valve of storage tank (or lorry), 5... Storage tank , piping system (cooled object).
Claims (1)
給する場合、供給端から極低温液体を供給するとともに
同供給端部にガスを吹き込み極低温液体を強制的に蒸発
させて上記極低温液体用貯蔵タンクおよび配管系を予冷
することを特徴とする極低温液体用貯蔵タンクおよび配
管のガス吹込み予冷法。When supplying a cryogenic liquid to a cryogenic liquid storage tank or piping system, the cryogenic liquid is supplied from the supply end, and gas is blown into the supply end to forcibly evaporate the cryogenic liquid. A gas injection precooling method for storage tanks and piping for cryogenic liquids, characterized by precooling storage tanks and piping systems for cryogenic liquids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2203908A JP2941380B2 (en) | 1990-08-02 | 1990-08-02 | Gas injection pre-cooling method for storage tanks and pipes for cryogenic liquids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2203908A JP2941380B2 (en) | 1990-08-02 | 1990-08-02 | Gas injection pre-cooling method for storage tanks and pipes for cryogenic liquids |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0492197A true JPH0492197A (en) | 1992-03-25 |
| JP2941380B2 JP2941380B2 (en) | 1999-08-25 |
Family
ID=16481692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2203908A Expired - Fee Related JP2941380B2 (en) | 1990-08-02 | 1990-08-02 | Gas injection pre-cooling method for storage tanks and pipes for cryogenic liquids |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2941380B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235616A (en) * | 2014-09-23 | 2014-12-24 | 成都安美固丹田新能源科技有限公司 | Positive-negative pressure protector |
| CN104315331A (en) * | 2014-10-20 | 2015-01-28 | 江苏鸿昌特种车辆有限公司 | Novel low-temperature liquid storage tank |
| JP2016180479A (en) * | 2015-03-24 | 2016-10-13 | 株式会社新領域技術研究所 | Method and system for transferring liquid helium |
| CN111779967A (en) * | 2020-06-28 | 2020-10-16 | 中国寰球工程有限公司 | Wharf platform pipeline cold insulation system and method of offshore LNG receiving station |
| CN114673936A (en) * | 2022-03-17 | 2022-06-28 | 北京航天试验技术研究所 | Liquid oxygen propellant full-supercooling filling system and method based on three-stage segmented cooling |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280398A (en) * | 1985-10-02 | 1987-04-13 | Hitachi Ltd | Very low temperature refrigerant supplying method and device |
-
1990
- 1990-08-02 JP JP2203908A patent/JP2941380B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280398A (en) * | 1985-10-02 | 1987-04-13 | Hitachi Ltd | Very low temperature refrigerant supplying method and device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235616A (en) * | 2014-09-23 | 2014-12-24 | 成都安美固丹田新能源科技有限公司 | Positive-negative pressure protector |
| CN104315331A (en) * | 2014-10-20 | 2015-01-28 | 江苏鸿昌特种车辆有限公司 | Novel low-temperature liquid storage tank |
| JP2016180479A (en) * | 2015-03-24 | 2016-10-13 | 株式会社新領域技術研究所 | Method and system for transferring liquid helium |
| CN111779967A (en) * | 2020-06-28 | 2020-10-16 | 中国寰球工程有限公司 | Wharf platform pipeline cold insulation system and method of offshore LNG receiving station |
| CN114673936A (en) * | 2022-03-17 | 2022-06-28 | 北京航天试验技术研究所 | Liquid oxygen propellant full-supercooling filling system and method based on three-stage segmented cooling |
| CN114673936B (en) * | 2022-03-17 | 2023-05-16 | 北京航天试验技术研究所 | Liquid oxygen propellant full supercooling filling system and method based on three-stage sectional cooling |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2941380B2 (en) | 1999-08-25 |
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