JP2002106794A - Liquid hydrogen storage device - Google Patents

Liquid hydrogen storage device

Info

Publication number
JP2002106794A
JP2002106794A JP2000300688A JP2000300688A JP2002106794A JP 2002106794 A JP2002106794 A JP 2002106794A JP 2000300688 A JP2000300688 A JP 2000300688A JP 2000300688 A JP2000300688 A JP 2000300688A JP 2002106794 A JP2002106794 A JP 2002106794A
Authority
JP
Japan
Prior art keywords
liquid hydrogen
hydrogen storage
pressure
tank
gas
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.)
Withdrawn
Application number
JP2000300688A
Other languages
Japanese (ja)
Inventor
Yasuki Yoshida
泰樹 吉田
Koichi Takaku
晃一 高久
Shuichi Togasawa
秀一 斗ヶ沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2000300688A priority Critical patent/JP2002106794A/en
Publication of JP2002106794A publication Critical patent/JP2002106794A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/32Hydrogen storage

Abstract

PROBLEM TO BE SOLVED: To reduce a discharge amount of boil-off gas of liquid hydrogen discharged from a liquid hydrogen storage tank. SOLUTION: This liquid hydrogen storage device 3 comprises a liquid hydrogen storage tank 5 placed in a vacuum tank 12, a releasing valve 6 and a safety valve 7. When a pressure in the liquid hydrogen storage tank 5 reaches a working pressure P1, the releasing valve 6 opens to release gaseous hydrogen 9 in the liquid hydrogen storage tank 5 to the exterior. The working pressure P1 of the releasing valve 6 is set to a pressure (for example, 3 MPa) higher than the critical pressure (about 1.3 MPa) where the boiling point of the liquid hydrogen 8 reaches critical point.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、液体水素を貯蔵
する液体水素貯蔵装置に関し、特に、液体水素を燃料と
する内燃機関自動車や燃料電池自動車等への搭載に好適
な液体水素貯蔵装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid hydrogen storage device for storing liquid hydrogen, and more particularly to a liquid hydrogen storage device suitable for mounting on an internal combustion engine vehicle or a fuel cell vehicle using liquid hydrogen as fuel. It is.

【0002】[0002]

【従来の技術】液体水素を貯蔵タンクに貯蔵する場合、
貯蔵タンク内には外部の熱によって液体水素が気化して
生じた水素ガス(以下、ボイルオフガスと称す)が、液
体水素の液相の上に充満しており、そのままにしておく
とタンク内の圧力が上昇してしまうので、貯蔵タンク内
のボイルオフガスは適宜に外部に排出する必要がある。
この種の従来技術としては、例えば、水素輸送船に搭載
した液体水素貯蔵タンクにおいて発生したボイルオフガ
スを水素吸蔵合金中に回収する方法が知られている(特
開平5−180397号公報)。これは、液体水素を貯
蔵する液体水素貯蔵タンクとボイルオフガス回収用の水
素吸蔵合金タンクとを配管によって連通し、液体水素貯
蔵タンク内で発生したボイルオフガスを水素吸蔵合金タ
ンクに導いて水素吸蔵合金中に吸蔵させるというもので
ある。この場合、水素吸蔵合金を約100゜Cのエンジ
ン廃熱等で加熱することにより、水素吸蔵合金に吸蔵さ
れた水素を取り出すことができる。
2. Description of the Related Art When storing liquid hydrogen in a storage tank,
In the storage tank, hydrogen gas (hereinafter referred to as boil-off gas) generated by vaporization of liquid hydrogen by external heat is filled above the liquid phase of liquid hydrogen. Since the pressure increases, the boil-off gas in the storage tank needs to be appropriately discharged to the outside.
As a prior art of this kind, for example, a method is known in which a boil-off gas generated in a liquid hydrogen storage tank mounted on a hydrogen transport ship is recovered in a hydrogen storage alloy (Japanese Patent Laid-Open No. 5-180397). In this method, the liquid hydrogen storage tank for storing liquid hydrogen and the hydrogen storage alloy tank for recovering boil-off gas are connected by pipes, and the boil-off gas generated in the liquid hydrogen storage tank is led to the hydrogen storage alloy tank so that the hydrogen storage alloy is released. It is to store it inside. In this case, the hydrogen stored in the hydrogen storage alloy can be taken out by heating the hydrogen storage alloy with engine waste heat of about 100 ° C. or the like.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、LaN
5やMm系のAB5型の水素吸蔵合金の水素貯蔵量は
水素吸蔵合金重量の約1wt%と低く、さらに、水素吸
蔵合金の密度が約8g/cm3とかなり大きいため、ボ
イルオフガスの回収が長期に亘る場合には、大重量の水
素吸蔵合金が必要であった。そのため、液体水素を燃料
とする内燃機関自動車や燃料電池自動車等に、液体水素
貯蔵タンクと水素吸蔵合金タンクを搭載してボイルオフ
ガスを処理するのは、非現実的である。そこで、この発
明は、液体水素を燃料とする内燃機関自動車や燃料電池
自動車への搭載に好適で、且つ、ボイルオフガスの発生
量を抑制可能な液体水素貯蔵装置を提供するものであ
る。
However, LaN
hydrogen storage amount of i 5 and Mm system AB5 type hydrogen storage alloy is as low as about 1 wt% of the hydrogen storage alloy by weight, further, the density of the hydrogen storage alloy is considerably large as about 8 g / cm 3, recovering the BOG However, in the case of a long period of time, a heavy hydrogen storage alloy was required. Therefore, it is impractical to treat a boil-off gas by mounting a liquid hydrogen storage tank and a hydrogen storage alloy tank on an internal combustion engine vehicle or a fuel cell vehicle that uses liquid hydrogen as fuel. Therefore, the present invention provides a liquid hydrogen storage device suitable for mounting on an internal combustion engine vehicle or a fuel cell vehicle using liquid hydrogen as a fuel and capable of suppressing the amount of boil-off gas generated.

【0004】[0004]

【課題を解決するための手段】上記課題を解決するため
に、請求項1に記載した発明は、液体水素(例えば、後
述する実施の形態における液体水素8)を貯蔵する液体
水素貯蔵タンク(例えば、後述する実施の形態における
液体水素貯蔵タンク5)と、前記液体水素貯蔵タンクの
内部圧力が水素の沸点が臨界に達する臨界圧力よりも高
くなったときに前記液体水素貯蔵タンク内の水素ガス
(例えば、後述する実施の形態における水素ガス9)を
外部に放出する開放弁(例えば、後述する実施の形態に
おける開放弁6)と、を備えることを特徴とする液体水
素貯蔵装置(例えば、後述する実施の形態における3)
である。
In order to solve the above-mentioned problems, the invention described in claim 1 is directed to a liquid hydrogen storage tank (for example, a liquid hydrogen storage tank for storing liquid hydrogen 8 in an embodiment described later). A liquid hydrogen storage tank 5 in an embodiment to be described later) and a hydrogen gas in the liquid hydrogen storage tank when the internal pressure of the liquid hydrogen storage tank becomes higher than a critical pressure at which the boiling point of hydrogen reaches a critical level. For example, a liquid hydrogen storage device (e.g., described below) including an opening valve (e.g., an opening valve 6 according to an embodiment described below) that discharges a hydrogen gas 9 according to an embodiment described below to the outside. 3) in the embodiment
It is.

【0005】液体水素の沸点は圧力と相関関係があり、
圧力の上昇に伴って沸点が上昇するが、所定の圧力にな
ると沸点は上限値に達し、それ以上圧力を上昇させても
沸点は平衡して一定になる。この沸点が平衡し始める圧
力が臨界圧力である。この発明の液体水素貯蔵装置で
は、液体水素貯蔵タンクの内部圧力が臨界圧力よりも高
い所定の圧力に達するまでは開放弁が開かないので、前
記タンク内の圧力上昇に伴う沸点の上昇により液体水素
が気化しにくくなる雰囲気を、前記タンク内の圧力が臨
界圧力に達するまで継続させることができる。
[0005] The boiling point of liquid hydrogen has a correlation with pressure,
Although the boiling point rises with an increase in pressure, the boiling point reaches an upper limit value when the pressure reaches a predetermined value, and the boiling point equilibrates and becomes constant even when the pressure is further increased. The pressure at which the boiling point begins to equilibrate is the critical pressure. In the liquid hydrogen storage device of the present invention, the opening valve does not open until the internal pressure of the liquid hydrogen storage tank reaches a predetermined pressure higher than the critical pressure. Can be continued until the pressure in the tank reaches a critical pressure.

【0006】[0006]

【発明の実施の形態】以下、この発明に係る液体水素貯
蔵装置の一実施の形態を図1から図3の図面を参照して
説明する。なお、この実施の形態は、燃料電池自動車に
搭載された液体水素貯蔵装置の態様である。図1は、燃
料電池自動車1の概略構成を示し、燃料電池自動車1
は、水素を燃料とする燃料電池2と、液体水素を貯蔵す
る液体水素貯蔵装置3とを備え、液体水素貯蔵装置3に
貯蔵された液体水素は気化されて水素ガスとなり、この
水素ガスが燃料として水素供給管4を介して燃料電池2
に供給される。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a liquid hydrogen storage device according to the present invention will be described below with reference to FIGS. This embodiment is an embodiment of a liquid hydrogen storage device mounted on a fuel cell vehicle. FIG. 1 shows a schematic configuration of a fuel cell vehicle 1.
Comprises a fuel cell 2 using hydrogen as fuel, and a liquid hydrogen storage device 3 for storing liquid hydrogen. The liquid hydrogen stored in the liquid hydrogen storage device 3 is vaporized into hydrogen gas, and this hydrogen gas is used as fuel. As fuel cell 2 via hydrogen supply pipe 4
Supplied to

【0007】図2は、液体水素貯蔵装置3の構成図であ
り、液体水素貯蔵装置3は、真空タンク12内に設置さ
れた液体水素貯蔵タンク(以下、タンクと略す)5と、
開放弁6と、安全弁7とを備えている。タンク5の内部
には液体水素8が貯蔵されており、タンク5内の上部空
間は、液体水素8が気化して生じた水素ガス9が充満し
ている。タンク5の上部には、タンク5内の上部空間か
ら水素ガス9を送出するための水素ガス出口管10が取
り付けられており、水素ガス出口管10は真空タンク1
2の外側において、燃料電池2に水素ガス9を導く前記
水素供給管4と、水素ガス9を外部に放出するための放
出管11に分岐されている。
FIG. 2 is a configuration diagram of the liquid hydrogen storage device 3. The liquid hydrogen storage device 3 includes a liquid hydrogen storage tank (hereinafter abbreviated as a tank) 5 installed in a vacuum tank 12,
An opening valve 6 and a safety valve 7 are provided. Liquid hydrogen 8 is stored in the tank 5, and the upper space in the tank 5 is filled with hydrogen gas 9 generated by vaporizing the liquid hydrogen 8. A hydrogen gas outlet pipe 10 for sending hydrogen gas 9 from an upper space in the tank 5 is attached to an upper portion of the tank 5, and the hydrogen gas outlet pipe 10 is connected to the vacuum tank 1.
Outside the fuel cell 2, the hydrogen supply pipe 4 for guiding the hydrogen gas 9 to the fuel cell 2 and a discharge pipe 11 for discharging the hydrogen gas 9 to the outside are branched.

【0008】この放出管11に開放弁6と安全弁7が互
いに並列に並んで設置されている。開放弁6は、タンク
5内の圧力が所定の作動圧力P1に達すると開放してタ
ンク5内の水素ガス9を外部に逃がし、タンク5内の圧
力が前記作動圧力P1を越えないようにするためのもの
である。一方、安全弁7は、万が一、タンク5内の圧力
が開放弁6の作動圧力P1を越えているにもかかわらず
開放弁6が作動しない時に、タンク5内の水素ガス9を
緊急排気するためのものであり、安全弁7の作動圧力P
2は開放弁6の作動圧力P1よりも若干大きい圧力に設定
されている(P2>P1)。
An opening valve 6 and a safety valve 7 are installed in the discharge pipe 11 in parallel with each other. The release valve 6 opens when the pressure in the tank 5 reaches a predetermined operating pressure P1 to release the hydrogen gas 9 in the tank 5 to the outside so that the pressure in the tank 5 does not exceed the operating pressure P1. It is for. On the other hand, the safety valve 7 is provided for urgently exhausting the hydrogen gas 9 in the tank 5 when the opening valve 6 does not operate even though the pressure in the tank 5 exceeds the operating pressure P1 of the opening valve 6. Operating pressure P of the safety valve 7
2 is set to a pressure slightly higher than the operating pressure P1 of the opening valve 6 (P2> P1).

【0009】タンク5は真空タンク12内に設置されて
おり、真空断熱されてはいるものの、外部の熱を受けて
液体水素8が沸点以上に加熱されると、液体水素8が気
化して水素ガス(即ち、ボイルオフガス)が生じ、その
結果、タンク5内の圧力が上昇する。ところで、図3に
示すように、水素の沸点は圧力と相関関係があり、圧力
の上昇に伴って沸点が上昇するが、所定の圧力(約1.
3MPa)になると沸点は上限値(約−240゜C)に
達し、それ以上圧力を上昇させても沸点はそれ以上上昇
せず、平衡して一定温度になる。この沸点が平衡し始め
る圧力が臨界圧力である。つまり、水素は臨界圧力に達
するまでは圧力が高い方が気化しにくく、臨界圧力以上
では気化し易さは変化しないということができる。
The tank 5 is installed in a vacuum tank 12 and is insulated by vacuum. However, when the liquid hydrogen 8 is heated to a boiling point or higher by receiving external heat, the liquid hydrogen 8 is vaporized and hydrogenated. Gas (ie, boil-off gas) is generated, and as a result, the pressure in the tank 5 increases. By the way, as shown in FIG. 3, the boiling point of hydrogen has a correlation with the pressure, and the boiling point rises as the pressure rises.
When the pressure reaches 3 MPa, the boiling point reaches the upper limit (about -240 ° C.). Even if the pressure is further increased, the boiling point does not increase any more, and the temperature equilibrates to a constant temperature. The pressure at which the boiling point begins to equilibrate is the critical pressure. In other words, it can be said that hydrogen is less likely to evaporate at a higher pressure until it reaches the critical pressure, and that the ease of vaporization does not change at a pressure higher than the critical pressure.

【0010】このことから、開放弁6が開放される作動
圧力P1を臨界圧力よりも高い圧力に設定すると、タン
ク5内の圧力が作動圧力P1に達するまでは開放弁6が
作動しないので、タンク5内の圧力上昇に伴う沸点の上
昇により液体水素8が気化しにくくなる雰囲気を、タン
ク5内の圧力が臨界圧力に達するまで継続させることが
できる。そこで、この液体水素貯蔵装置1では、開放弁
6の作動圧力P1を、前記臨界圧力よりも高い圧力(例
えば、3MPa)に設定することにした。また、これに
伴い、当然のことながら、タンク5を、開放弁6の作動
圧力P1よりも高い圧力に耐え得るようにした。
Therefore, if the operating pressure P1 at which the opening valve 6 is opened is set to a pressure higher than the critical pressure, the opening valve 6 does not operate until the pressure in the tank 5 reaches the operating pressure P1, so that the tank The atmosphere in which the liquid hydrogen 8 is less likely to evaporate due to the increase in the boiling point accompanying the increase in the pressure in the tank 5 can be continued until the pressure in the tank 5 reaches the critical pressure. Therefore, in the liquid hydrogen storage device 1, the operating pressure P1 of the opening valve 6 is set to a pressure higher than the critical pressure (for example, 3 MPa). Accordingly, as a matter of course, the tank 5 can withstand a pressure higher than the operating pressure P1 of the opening valve 6.

【0011】このようにすると、液体水素8の沸点を約
−240゜Cまで上昇させることができるので、ボイル
オフガスの発生を抑制することができる。したがって、
ボイルオフガスをタンク5内に貯蔵しておける期間(即
ち、開放弁6が作動するまでの期間)を長く保つことが
でき、また、液体水素8を気化させずに液体のまま貯蔵
しておける期間を長く保つことができる。また、この実
施の形態のように車両など移動体に液体水素貯蔵装置1
を搭載した場合には、定置型の液体水素タンクと比べ
て、使用されない期間が長くなる可能性がある。例え
ば、車両を空港に1ヶ月間放置する場合などが考えられ
る。そのような時に、ボイルオフガスをタンク5内に長
く貯蔵しておけるので、燃料である水素ガス9が開放弁
6から放出される回数を減らすことができ、水素ガス9
の放出量を低減することができるので、結果的に、車両
の燃費が向上する。
In this manner, the boiling point of the liquid hydrogen 8 can be raised to about -240 ° C., so that the generation of boil-off gas can be suppressed. Therefore,
A period during which the boil-off gas can be stored in the tank 5 (that is, a period until the opening valve 6 operates) can be kept long, and a period during which the liquid hydrogen 8 can be stored in a liquid state without being vaporized. Can be kept long. Further, as in this embodiment, the liquid hydrogen storage device 1
In the case where is mounted, there is a possibility that the period of non-use is longer than that of the stationary liquid hydrogen tank. For example, a case where the vehicle is left at the airport for one month can be considered. In such a case, since the boil-off gas can be stored in the tank 5 for a long time, the number of times that the hydrogen gas 9 as the fuel is released from the open valve 6 can be reduced, and the hydrogen gas 9
As a result, the fuel consumption of the vehicle is improved.

【0012】さらに、液体水素貯蔵タンク5のほかに、
水素吸蔵合金タンクのようなタンクを設ける必要がない
ので、水素貯蔵システムの構成が簡単になり、且つ、軽
量にでき、車両搭載性に優れている。また、タンク5内
を高圧に保持できるので、車両始動時などに液体水素貯
蔵装置3から燃料電池2へ急速に水素ガス9を供給する
ことができる。
Further, in addition to the liquid hydrogen storage tank 5,
Since there is no need to provide a tank such as a hydrogen storage alloy tank, the configuration of the hydrogen storage system is simplified, the weight can be reduced, and the vehicle can be easily mounted. Further, since the inside of the tank 5 can be maintained at a high pressure, the hydrogen gas 9 can be rapidly supplied from the liquid hydrogen storage device 3 to the fuel cell 2 at the time of starting the vehicle.

【0013】ちなみに、この実施の形態の燃料電池自動
車1に搭載された液体水素貯蔵装置3において開放弁6
の作動圧力P1を3MPaに設定して、この燃料電池自
動車1を放置したところ、開放弁6は1週間作動するこ
とがなく、ボイルオフガスが外部に放散されなかった。
これに対して、これと全く同じシステムを用いて開放弁
6の作動圧力P1だけを470kPaに変えた燃料電池
自動車1を放置した場合には、1日毎に開放弁6が作動
し、ボイルオフガスが外部に放散された。
Incidentally, in the liquid hydrogen storage device 3 mounted on the fuel cell vehicle 1 of this embodiment, the opening valve 6
When the operating pressure P1 was set at 3 MPa and the fuel cell vehicle 1 was left undisturbed, the opening valve 6 did not operate for one week, and the boil-off gas was not released to the outside.
On the other hand, when the fuel cell vehicle 1 in which only the operating pressure P1 of the opening valve 6 is changed to 470 kPa using the same system as above is left, the opening valve 6 is activated every day and the boil-off gas is discharged. Dissipated outside.

【0014】〔他の実施の形態〕尚、この発明は前述し
た実施の形態に限られるものではなく、例えば、液体水
素貯蔵装置は、水素を燃料とする内燃機関自動車に搭載
することも可能である。また、開放弁6の作動圧力P1
は、水素の臨界圧力である1.3MPa以上であれば、
前記実施の形態の3MPaに限定されない。
[Other Embodiments] The present invention is not limited to the above-described embodiment. For example, a liquid hydrogen storage device can be mounted on an internal combustion engine vehicle using hydrogen as fuel. is there. In addition, the operating pressure P1 of the release valve 6
Is 1.3 MPa or more, which is the critical pressure of hydrogen,
It is not limited to 3 MPa in the above embodiment.

【0015】[0015]

【発明の効果】以上説明してきたように、請求項1に記
載した発明によれば、液体水素貯蔵タンク内の圧力上昇
に伴う水素の沸点の上昇により液体水素が気化しにくく
なる雰囲気を、前記タンク内の圧力が臨界圧力に達する
まで継続させることができるので、液体水素が気化され
て生じるボイルオフガスの発生を抑制することができ、
ボイルオフガスを前記タンク内に貯蔵しておける期間を
長く保つことができ、液体水素を気化させずに液体のま
ま貯蔵しておける期間を長く保つことができるという優
れた効果が奏される。
As described above, according to the first aspect of the present invention, the atmosphere in which liquid hydrogen hardly vaporizes due to an increase in the boiling point of hydrogen accompanying an increase in pressure in the liquid hydrogen storage tank is provided. Since it is possible to continue until the pressure in the tank reaches the critical pressure, it is possible to suppress the generation of boil-off gas generated by vaporizing liquid hydrogen,
An excellent effect is obtained in that the period in which the boil-off gas can be stored in the tank can be kept long, and the period in which the liquid hydrogen can be stored in a liquid state without being vaporized can be kept long.

【図面の簡単な説明】[Brief description of the drawings]

【図1】 この発明に係る液体水素貯蔵装置を搭載した
燃料電池自動車の構成図である。
FIG. 1 is a configuration diagram of a fuel cell vehicle equipped with a liquid hydrogen storage device according to the present invention.

【図2】 この発明に係る液体水素貯蔵装置の一実施の
形態の構成図である。
FIG. 2 is a configuration diagram of an embodiment of a liquid hydrogen storage device according to the present invention.

【図3】 液体水素の沸点と圧力との関係を示す図であ
る。
FIG. 3 is a diagram showing the relationship between the boiling point of liquid hydrogen and pressure.

【符号の説明】[Explanation of symbols]

3・・・液体水素貯蔵装置 5・・・液体水素貯蔵タンク 6・・・開放弁 8・・・液体水素 9・・・水素ガス 3 ... Liquid hydrogen storage device 5 ... Liquid hydrogen storage tank 6 ... Opening valve 8 ... Liquid hydrogen 9 ... Hydrogen gas

───────────────────────────────────────────────────── フロントページの続き (72)発明者 斗ヶ沢 秀一 埼玉県和光市中央1丁目4番1号 株式会 社本田技術研究所内 Fターム(参考) 3E072 AA03 BA11  ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Shuichi Togazawa 1-4-1 Chuo, Wako-shi, Saitama F-term in Honda R & D Co., Ltd. (reference) 3E072 AA03 BA11

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 液体水素を貯蔵する液体水素貯蔵タンク
と、 前記液体水素貯蔵タンクの内部圧力が水素の沸点が臨界
に達する臨界圧力よりも高くなったときに前記液体水素
貯蔵タンク内の水素ガスを外部に放出する開放弁と、を
備えることを特徴とする液体水素貯蔵装置。
1. A liquid hydrogen storage tank for storing liquid hydrogen, and a hydrogen gas in the liquid hydrogen storage tank when an internal pressure of the liquid hydrogen storage tank becomes higher than a critical pressure at which a boiling point of hydrogen reaches a critical level. A liquid hydrogen storage device, comprising:
JP2000300688A 2000-09-29 2000-09-29 Liquid hydrogen storage device Withdrawn JP2002106794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000300688A JP2002106794A (en) 2000-09-29 2000-09-29 Liquid hydrogen storage device

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Publications (1)

Publication Number Publication Date
JP2002106794A true JP2002106794A (en) 2002-04-10

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Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009093888A (en) * 2007-10-05 2009-04-30 Honda Motor Co Ltd Fuel cell system
JP2015203502A (en) * 2014-04-16 2015-11-16 バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフトBayerische Motoren Werke Aktiengesellschaft Method for producing tank, in particular, motor vehicle tank
KR20170119677A (en) * 2015-02-24 2017-10-27 바르실라 핀랜드 오이 Valve system of a fuel tank, especially of an lng tank
JP2018204722A (en) * 2017-06-06 2018-12-27 川崎重工業株式会社 Gas release system
CN114033968A (en) * 2021-10-29 2022-02-11 深圳市氢瑞燃料电池科技有限公司 Liquid hydrogen storage device of fuel cell

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009093888A (en) * 2007-10-05 2009-04-30 Honda Motor Co Ltd Fuel cell system
JP2015203502A (en) * 2014-04-16 2015-11-16 バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフトBayerische Motoren Werke Aktiengesellschaft Method for producing tank, in particular, motor vehicle tank
KR20170119677A (en) * 2015-02-24 2017-10-27 바르실라 핀랜드 오이 Valve system of a fuel tank, especially of an lng tank
JP2018507990A (en) * 2015-02-24 2018-03-22 ワルトシラ フィンランド オサケユキチュア Valve system for fuel tanks, especially LNG tanks
KR102066779B1 (en) 2015-02-24 2020-02-17 바르실라 핀랜드 오이 Valve system for an lng tank
JP2018204722A (en) * 2017-06-06 2018-12-27 川崎重工業株式会社 Gas release system
CN114033968A (en) * 2021-10-29 2022-02-11 深圳市氢瑞燃料电池科技有限公司 Liquid hydrogen storage device of fuel cell

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