JP2008291891A - High pressure tank - Google Patents

High pressure tank Download PDF

Info

Publication number
JP2008291891A
JP2008291891A JP2007136621A JP2007136621A JP2008291891A JP 2008291891 A JP2008291891 A JP 2008291891A JP 2007136621 A JP2007136621 A JP 2007136621A JP 2007136621 A JP2007136621 A JP 2007136621A JP 2008291891 A JP2008291891 A JP 2008291891A
Authority
JP
Japan
Prior art keywords
valve
tank body
pressure tank
tank
plug valve
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
Application number
JP2007136621A
Other languages
Japanese (ja)
Other versions
JP5007809B2 (en
Inventor
Hirokazu Otsubo
弘和 大坪
Kazuya Fujise
和也 藤瀬
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP2007136621A priority Critical patent/JP5007809B2/en
Publication of JP2008291891A publication Critical patent/JP2008291891A/en
Application granted granted Critical
Publication of JP5007809B2 publication Critical patent/JP5007809B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To promptly discharge gas in a tank even if a fire breaks out on an opposite side (an end side) to a fusible plug valve of a high pressure tank. <P>SOLUTION: The high pressure tank comprises a tank main body 2 storing gas inside, a valve 4 provided at an opening portion 3 of the tank main body 2, the fusible plug valve 5 provided at or near the valve 4, and an opening means forming a gas discharging passage when a part separated from the fusible plug valve 5 of the tank main body 2 is heated. The opening means includes a heat transfer member 6 transferring heat at, for example, a heated part to the fusible plug valve. The heat transfer member 6 is, for example, an aluminum thin plate included in an outer wall of the tank main body 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は高圧タンクに関する。さらに詳述すると、本発明は圧縮ガスなどを収容する高圧タンクに関する。   The present invention relates to a high-pressure tank. More specifically, the present invention relates to a high-pressure tank that contains compressed gas and the like.

圧縮ガスなどを収容する高圧タンク（ガスボンベ）には、雰囲気温度が何らかの理由で異常上昇した際、溶栓が解けて開放するという構造の安全弁（本明細書ではこれを溶栓弁ともいう）が装着されているものがある。例えば火災などにより高圧タンクの温度が異常上昇した場合、当該溶栓弁が作動することによってタンクがバーストするのが未然に防がれる（例えば特許文献１参照）。
特開２００５−３１５２９４号公報 A high-pressure tank (gas cylinder) that contains compressed gas has a safety valve (this is also referred to as a plug valve in this specification) that opens when the ambient temperature abnormally rises for some reason. Some are attached. For example, when the temperature of the high-pressure tank rises abnormally due to a fire or the like, bursting of the tank is prevented by operating the fusing valve (see, for example, Patent Document 1).
JP 2005-315294 A

上述のような溶栓弁を備えた高圧タンクについては、仮に当該高圧タンクのエンド側（上述の溶栓弁や口金とは反対の例えばタンク底側）において火災が生じたとしても溶栓弁を迅速に作動させてタンク内のガスを放出することが重要である。   For high-pressure tanks equipped with the above-mentioned plug valve, even if a fire occurs on the end side of the high-pressure tank (for example, the tank bottom side opposite to the above-mentioned plug valve or base), It is important to operate quickly and release the gas in the tank.

そこで、本発明は、当該高圧タンクのうち溶栓弁とは反対側（エンド側）において火災が生じたような場合にもタンク内のガスを迅速に放出できるようにした高圧タンクを提供することを目的とする。   Therefore, the present invention provides a high-pressure tank capable of quickly releasing the gas in the tank even when a fire occurs on the side (end side) opposite to the plug valve in the high-pressure tank. With the goal.

上述のように高圧タンクのエンド側（溶栓弁とは反対の側）で火災が生じたような場合、例えばタンクのＦＲＰ層が焼かれる等し、層が薄くなると内圧を保持できなくなり、内圧が大きい場合には当該部分を起点にバーストに至るおそれもある。本発明の高圧タンクはかかる問題を検討した結果得られた着想に基づくものであり、内部にガスを収容するタンク本体と、該タンク本体の開口部に設けられるバルブと、該バルブまたはその近傍に設けられる溶栓弁と、タンク本体のうち溶栓弁から離間した部位が加熱された場合にガスの放出路を形成する開放手段と、を備えている。この構成によれば、仮に当該高圧タンクのエンド側（開口部とは反対の側）が火災等により加熱されたとしてもガスの放出路を形成してタンク内のガスを放出することが可能である。   As described above, when a fire occurs on the end side of the high-pressure tank (the side opposite to the plug valve), for example, the FRP layer of the tank is baked. If the value is large, there is a risk of bursting starting from that portion. The high-pressure tank of the present invention is based on an idea obtained as a result of examining such a problem, and includes a tank body that contains gas therein, a valve provided at an opening of the tank body, and the valve or the vicinity thereof. A fusing valve provided; and an opening means for forming a gas discharge path when a portion of the tank body that is separated from the fusing valve is heated. According to this configuration, even if the end side (the side opposite to the opening) of the high-pressure tank is heated by a fire or the like, it is possible to form a gas discharge path and release the gas in the tank. is there.

この場合、開放手段は、例えば加熱された部位の熱を溶栓弁へと伝達する伝熱部材を含む。伝熱部材がタンク本体の外壁に内蔵されていてもよい。伝熱部材は例えばアルミニウム製の薄板からなる。例えば当該高圧タンクの開口部側からエンド側にわたり長尺状の複数の伝熱部材を周方向に間隔をあけて設けた場合、雰囲気温度の異常上昇がタンク本体の開口部側からエンド側におけるいずれの箇所にて生じたとしても、伝熱部材を介して溶栓弁に熱を伝達し、溶融させることができる。   In this case, an opening means contains the heat-transfer member which transmits the heat | fever of the site | part heated, for example to a fusing valve. The heat transfer member may be built in the outer wall of the tank body. The heat transfer member is made of a thin plate made of aluminum, for example. For example, when a plurality of elongate heat transfer members are provided at intervals in the circumferential direction from the opening side to the end side of the high-pressure tank, any abnormal increase in the atmospheric temperature may occur from the opening side to the end side of the tank body. Even if it arises in this location, heat can be transferred to the plug valve via the heat transfer member and melted.

また、本発明にかかる高圧タンクにおいて、開放手段は、加熱された部位が所定温度に達したことを検出するセンサと、該センサによる検出信号を受けてガス放出路を強制的に形成するガス放出路形成装置と、からなる。この場合のガス放出路形成装置は、溶栓弁を所定温度まで加熱するためのヒータであり、あるいは、タンク本体のうち溶栓弁以外のいずれかの部位を変形させてガス放出路を強制的に形成するものである。   Further, in the high-pressure tank according to the present invention, the opening means includes a sensor for detecting that the heated portion has reached a predetermined temperature, and a gas discharge forcibly forming a gas discharge path upon receiving a detection signal from the sensor. And a path forming device. The gas discharge path forming device in this case is a heater for heating the plug valve to a predetermined temperature, or the gas discharge path is forcibly changed by deforming any part of the tank body other than the plug valve. Is formed.

センサは、例えば所定温度で断線するヒューズからなる。この場合のヒューズは、線状に形成され、タンク本体の開口部側から該開口部とは反対のエンド側に沿って配設されていることが好ましい。あるいは、当該ヒューズが、タンク本体の開口部側から該開口部とは反対のエンド側に沿って間隔をあけて複数設けられていることも好ましい。   The sensor is composed of, for example, a fuse that is disconnected at a predetermined temperature. In this case, the fuse is preferably formed in a linear shape and disposed along the end side opposite to the opening from the opening side of the tank body. Or it is also preferable that the said fuse is provided with two or more spacing along the end side opposite to this opening part from the opening part side of a tank main body.

本発明の高圧タンクによれば、当該高圧タンクのうち溶栓弁とは反対側（エンド側）において火災が生じたような場合にもタンク内のガスを迅速に放出することができる。   According to the high-pressure tank of the present invention, the gas in the tank can be quickly released even when a fire occurs on the opposite side (end side) of the high-pressure tank to the plug valve.

以下、図面を参照して、本発明の実施形態に係る高圧タンクについて説明する。
なお、以下に記載される実施形態は、本発明を説明するための例示であり、本発明をこれらの実施形態にのみ限定するものではない。したがって、本発明は、その要旨を逸脱しない限り、様々な形態で実施することができる。例えば、以下の実施形態では、燃料電池車両に搭載する燃料ガス（高圧水素）の高圧タンクなどに本発明を適用した場合を例示しているが、本発明はこれに限られず、別の種類の圧縮ガスや液化ガスを収容する高圧タンクに適用することができる。 Hereinafter, a high-pressure tank according to an embodiment of the present invention will be described with reference to the drawings.
In addition, embodiment described below is the illustration for demonstrating this invention, and this invention is not limited only to these embodiment. Therefore, the present invention can be implemented in various forms without departing from the gist thereof. For example, in the following embodiment, the case where the present invention is applied to a high-pressure tank of fuel gas (high-pressure hydrogen) mounted on a fuel cell vehicle is illustrated, but the present invention is not limited to this, and other types The present invention can be applied to a high-pressure tank that stores compressed gas or liquefied gas.

（第１実施形態）
まず、本発明の第１実施形態に係る高圧タンクを説明する。
図１は第１実施形態に係る高圧タンクを説明する概略側断面図である。
図１に示すように、高圧タンク１Ａは、内部に高圧ガス（例えば水素ガス）を充填保管するためのタンク本体２と、このタンク本体２の一端（先端）に設けられた開口部３とを有している。開口部３には図示しない口金部材が設けられており、この口金部材にバルブアッセンブリであるバルブ（タンクバルブ）４が装着されている。バルブ４には、例えば、燃料電池に繋がる配管が接続され、このバルブ４を介してタンク本体２内のガスが配管を介して燃料電池に供給される。
さらにこのバルブ４には溶栓弁５が設けられており、この溶栓弁５によってタンク本体２の内外に連通する図示しない流路が閉鎖されている。この溶栓弁５は、可溶合金からなるもので、所定温度となると可溶合金が軟化溶融して開放し、その結果、タンク本体２内が流路を介して外部に連通した状態となる。 (First embodiment)
First, the high pressure tank according to the first embodiment of the present invention will be described.
FIG. 1 is a schematic sectional side view illustrating a high-pressure tank according to the first embodiment.
As shown in FIG. 1, a high-pressure tank 1A includes a tank body 2 for filling and storing a high-pressure gas (for example, hydrogen gas) therein, and an opening 3 provided at one end (tip) of the tank body 2. Have. A base member (not shown) is provided in the opening 3, and a valve (tank valve) 4 that is a valve assembly is mounted on the base member. For example, a pipe connected to the fuel cell is connected to the valve 4, and the gas in the tank body 2 is supplied to the fuel cell via the valve 4 via the pipe.
Further, the valve 4 is provided with a plug valve 5, and a flow path (not shown) communicating with the inside and outside of the tank body 2 is closed by the plug valve 5. The plug valve 5 is made of a fusible alloy. When the predetermined temperature is reached, the fusible alloy is softened and melted and opened, and as a result, the inside of the tank body 2 is in communication with the outside through the flow path. .

タンク本体２は、細長であり有底の略円筒形状に形成されており、例えば、合成樹脂製のライナーの外周側を、ガラス繊維や炭素繊維などからなる繊維強化層で補強して構成されている。
このタンク本体２には、バルブ４が設けられた先端側（開口部３側）から後端側（エンド側）にわたって、長尺状に形成された複数の伝熱部材６が設けられている。これら伝熱部材６は、熱伝導性に優れた、例えばアルミニウムなどの金属材料等からなるもので、タンク本体２の前後方向（軸方向）に沿って周方向に間隔をあけて設けられている。タンク本体２が例えばＧＦＲＰ層を含む構造の場合、伝熱部材（例えばアルミニウム製の薄板）６をガラス層内に巻き込むようにして設けることができる。 The tank body 2 is elongated and has a substantially cylindrical shape with a bottom. For example, the tank body 2 is formed by reinforcing the outer peripheral side of a synthetic resin liner with a fiber reinforced layer made of glass fiber or carbon fiber. Yes.
The tank body 2 is provided with a plurality of heat transfer members 6 formed in an elongated shape from the front end side (opening 3 side) where the valve 4 is provided to the rear end side (end side). These heat transfer members 6 are made of a metal material such as aluminum having excellent thermal conductivity, and are provided at intervals in the circumferential direction along the front-rear direction (axial direction) of the tank body 2. . When the tank body 2 has a structure including a GFRP layer, for example, a heat transfer member (for example, an aluminum thin plate) 6 can be provided so as to be wound into the glass layer.

上記構造の高圧タンク１Ａにおいて、例えば、火炎などによってバルブ４の周囲の雰囲気温度が異常上昇すると、バルブ４の溶栓弁５の可溶合金が軟化溶融することにより、タンク本体２内が外部に連通される。その結果、タンク本体２内のガスが外部に放出され、タンク本体２の内圧上昇が抑制される。
また、この高圧タンク１Ａでは、その長手方向の後方側（エンド側）にて火炎など温度上昇が生じると、その熱がタンク本体２に埋め込まれた複数の伝熱部材６を介してタンク本体２の先端側にも伝達され、開口部３やバルブ４の近傍の温度が上昇する。 In the high-pressure tank 1A having the above-described structure, for example, when the ambient temperature around the valve 4 rises abnormally due to a flame or the like, the fusible alloy of the plug valve 5 of the valve 4 softens and melts, so that the inside of the tank body 2 is exposed to the outside. Communicated. As a result, the gas in the tank body 2 is released to the outside, and an increase in the internal pressure of the tank body 2 is suppressed.
Further, in the high-pressure tank 1A, when a temperature rise such as a flame occurs on the rear side (end side) in the longitudinal direction, the heat of the tank body 2 passes through a plurality of heat transfer members 6 embedded in the tank body 2. The temperature in the vicinity of the opening 3 and the valve 4 rises.

そして、このバルブ４やその周囲の温度が異常に上昇すると、バルブ４の溶栓弁５の可溶合金が軟化溶融することにより、タンク本体２内が外部に連通され、その結果、タンク本体２内のガスが外部に放出され、タンク本体２の内圧上昇が抑制される。   When the temperature of the valve 4 and its surroundings is abnormally increased, the soluble alloy of the plug valve 5 of the valve 4 is softened and melted, whereby the inside of the tank body 2 is communicated with the outside. As a result, the tank body 2 The internal gas is released to the outside, and the increase in internal pressure of the tank body 2 is suppressed.

このように、上記第１実施形態に係る高圧タンク１Ａによれば、タンク本体２の先端側から後端側にわたって、長尺状に形成された複数の伝熱部材６を周方向に間隔をあけて設けたので、雰囲気温度の異常上昇がタンク本体２の先端側から後端側におけるいずれの箇所にて生じたとしても、複数の伝熱部材６を介してタンク本体２の先端側に設けた溶栓弁５に熱を伝達させて溶融させ、これにより、タンク本体２内のガスを外部に放出させてタンク本体２の内圧上昇を抑制することができる。
これにより、雰囲気温度の上昇による溶栓弁５を迅速に作動させることが可能となり、例えば火災によるタンクバーストといった二次災害に至る可能性を低くすることができる。 Thus, according to the high pressure tank 1A according to the first embodiment, the plurality of heat transfer members 6 formed in a long shape are spaced in the circumferential direction from the front end side to the rear end side of the tank body 2. Therefore, even if an abnormal increase in the atmospheric temperature occurs at any location from the front end side to the rear end side of the tank main body 2, it is provided at the front end side of the tank main body 2 via the plurality of heat transfer members 6. Heat can be transmitted to the fusing valve 5 to melt it, whereby the gas in the tank body 2 can be released to the outside and the increase in the internal pressure of the tank body 2 can be suppressed.
As a result, it is possible to quickly operate the plug valve 5 due to an increase in ambient temperature, and the possibility of a secondary disaster such as a tank burst due to a fire can be reduced.

（第２実施形態）
次に、第２実施形態に係る高圧タンクを説明する。
なお、上記第１実施形態に係る高圧タンク１Ａと同一構成・構造部分は、同一符号を付して説明を省略する。 (Second Embodiment)
Next, a high-pressure tank according to the second embodiment will be described.
In addition, the same structure and structure part as 1 A of high pressure tanks concerning the said 1st Embodiment attach | subject the same code | symbol, and abbreviate | omit description.

図２は第２実施形態に係る高圧タンクを説明する概略側断面図である。
図２に示すように、高圧タンク１Ｂには、バルブ４が設けられた先端側から後端側にわたって、タンク本体２の下方に線状のヒューズ１１が配設されている。このヒューズ１１は、所定の温度に達することにより溶融して断線する金属材料等で形成されている。 FIG. 2 is a schematic sectional side view for explaining a high-pressure tank according to the second embodiment.
As shown in FIG. 2, in the high-pressure tank 1B, a linear fuse 11 is disposed below the tank body 2 from the front end side where the valve 4 is provided to the rear end side. The fuse 11 is formed of a metal material or the like that melts and breaks when reaching a predetermined temperature.

また、バルブ４あるいはその近傍には、電気的に溶栓弁５を加熱し、可溶合金を軟化溶融させて開放させ、タンク本体２内を外部に連通させる加熱装置（開放手段）１２が設けられている。
このヒューズ１１には、加熱装置１２によって検出電流が流されており、このヒューズ１１が断線して検出電流が遮断されると、加熱装置１２によってバルブ４の溶栓弁５が加熱されるようになっている。 Further, a heating device (opening means) 12 is provided in or near the valve 4 to electrically heat the plug valve 5 to soften and melt the fusible alloy and open the tank body 2 to the outside. It has been.
A detection current is supplied to the fuse 11 by the heating device 12. When the fuse 11 is disconnected and the detection current is interrupted, the plug valve 5 of the valve 4 is heated by the heating device 12. It has become.

上記構造の高圧タンク１Ｂにおいて、例えば、火炎などによってタンク本体２の周囲の雰囲気温度が異常上昇し、タンク本体２の先端側から後端側にわたって設けられたヒューズ１１が所定温度となると、このヒューズ１１が断線し、検出電流が遮断される。これにより、加熱装置１２によってバルブ４の溶栓弁５が加熱され、この溶栓弁５の可溶合金が軟化溶融することにより、タンク本体２内が外部に連通される。その結果、タンク本体２内のガスが外部に放出され、タンク本体２の内圧上昇が抑制される。   In the high-pressure tank 1B having the above structure, for example, when the ambient temperature around the tank body 2 abnormally rises due to a flame or the like and the fuse 11 provided from the front end side to the rear end side of the tank body 2 reaches a predetermined temperature, this fuse 11 is disconnected and the detection current is cut off. As a result, the plug valve 5 of the valve 4 is heated by the heating device 12, and the inside of the tank body 2 is communicated to the outside by softening and melting the soluble alloy of the plug valve 5. As a result, the gas in the tank body 2 is released to the outside, and an increase in the internal pressure of the tank body 2 is suppressed.

このように、上記第２実施形態に係る高圧タンク１Ｂによれば、タンク本体２の先端側から後端側にわたって線状のヒューズ１１を温度センサとして設け、このヒューズ１１の断線結果に基づいてバルブ４を開放する開放手段である加熱装置１２を設けたので、雰囲気温度の異常上昇がタンク本体２の先端側から後端側におけるいずれの箇所にて生じたとしても、ヒューズ１１が温度の異常上昇によって断線することにより、加熱装置１２によってバルブ４の溶栓弁５が溶融されてタンク本体２を外部と連通させ、これにより、タンク本体２の内圧上昇を抑制することができる。
これにより、雰囲気温度の上昇によるバルブ４の作動のさらなる迅速化を図ることができる。 Thus, according to the high-pressure tank 1B according to the second embodiment, the linear fuse 11 is provided as a temperature sensor from the front end side to the rear end side of the tank body 2, and the valve is based on the disconnection result of the fuse 11. Since the heating device 12 is provided as an opening means for opening 4, the abnormal temperature rise of the fuse 11 occurs at any location from the front end side to the rear end side of the tank body 2. Is disconnected by the heating device 12 to melt the plug valve 5 of the valve 4 to allow the tank body 2 to communicate with the outside, thereby suppressing an increase in internal pressure of the tank body 2.
As a result, it is possible to further speed up the operation of the valve 4 due to an increase in the ambient temperature.

（第３実施形態）
次に、第３実施形態に係る高圧タンクを説明する。
なお、上記第１実施形態に係る高圧タンク１Ａと同一構成・構造部分は、同一符号を付して説明を省略する。 (Third embodiment)
Next, a high pressure tank according to a third embodiment will be described.
In addition, the same structure and structure part as 1 A of high pressure tanks concerning the said 1st Embodiment attach | subject the same code | symbol, and abbreviate | omit description.

図３は第３実施形態に係る高圧タンクを説明する概略側断面図である。
図３に示すように、高圧タンク１Ｃには、バルブ４が設けられた先端側から後端側に沿って間隔をあけて複数のヒューズ２１が設けられている。これらヒューズ２１は、所定の温度に達することにより溶融して断線する金属材料等で形成されており、例えば、タンク本体２を構成するライナーの外周側の繊維強化層に埋め込まれている。 FIG. 3 is a schematic sectional side view for explaining a high-pressure tank according to a third embodiment.
As shown in FIG. 3, the high-pressure tank 1 </ b> C is provided with a plurality of fuses 21 at intervals from the front end side where the valve 4 is provided to the rear end side. These fuses 21 are formed of a metal material or the like that melts and breaks when reaching a predetermined temperature, and is embedded in, for example, a fiber reinforced layer on the outer peripheral side of the liner constituting the tank body 2.

また、バルブ４には、電気的に溶栓弁５を加熱し、可溶合金を軟化溶融させて開放させ、タンク本体２内を外部に連通させる加熱装置２２が設けられている。これらヒューズ２１には、加熱装置２２によって検出電流が流されており、これらヒューズ２１の少なくともいずれかが断線して検出電流が遮断されると、加熱装置２２によってバルブ４の溶栓弁５が加熱されるようになっている。   Further, the valve 4 is provided with a heating device 22 that electrically heats the fusing valve 5 to soften and melt the fusible alloy and open the tank body 2 to the outside. The fuses 21 are supplied with detection current by the heating device 22, and when at least one of the fuses 21 is disconnected and the detection current is cut off, the heating device 22 heats the plug valve 5 of the valve 4. It has come to be.

上記構造の高圧タンク１Ｃにおいて、例えば、火炎などによってタンク本体２の周囲の雰囲気温度が異常上昇し、タンク本体２の先端側から後端側にわたって間隔をあけて設けられたヒューズ２１のいずれかが所定温度となると、そのヒューズ２１が断線し、検出電流が遮断される。これにより、加熱装置２２によってバルブ４の溶栓弁５が加熱され、この溶栓弁５の可溶合金が軟化溶融することにより、タンク本体２内が外部に連通される。その結果、タンク本体２内のガスが外部に放出され、タンク本体２の内圧上昇が抑制される。   In the high-pressure tank 1C having the above structure, for example, the ambient temperature around the tank body 2 abnormally rises due to a flame or the like, and any of the fuses 21 provided at intervals from the front end side to the rear end side of the tank main body 2 When the temperature reaches a predetermined temperature, the fuse 21 is disconnected and the detection current is interrupted. Thereby, the plug valve 5 of the valve 4 is heated by the heating device 22, and the inside of the tank body 2 is communicated to the outside by softening and melting the soluble alloy of the plug valve 5. As a result, the gas in the tank body 2 is released to the outside, and an increase in the internal pressure of the tank body 2 is suppressed.

このように、上記第３実施形態に係る高圧タンク１Ｃによれば、タンク本体２の先端側から後端側にわたって複数のヒューズ２１を温度センサとして間隔をあけて設け、これらヒューズ２１の断線結果に基づいてバルブ４を開放する開放手段である加熱装置２２を設けたので、雰囲気温度の異常上昇がタンク本体２の先端側から後端側におけるいずれの箇所にて生じたとしても、少なくともいずれかのヒューズ２１が温度の異常上昇によって断線することにより、加熱装置２２によってバルブ４の溶栓弁５が溶融されてタンク本体２を外部と連通させ、これにより、タンク本体２の内圧上昇を抑制することができる。
これにより、雰囲気温度の上昇によるバルブ４の作動のさらなる迅速化を図ることができる。 As described above, according to the high-pressure tank 1C according to the third embodiment, a plurality of fuses 21 are provided at intervals from the front end side to the rear end side of the tank body 2 as temperature sensors. Since the heating device 22 as an opening means for opening the valve 4 is provided on the basis of this, even if an abnormal increase in the atmospheric temperature occurs at any location from the front end side to the rear end side of the tank body 2, at least any one of them When the fuse 21 is disconnected due to an abnormal rise in temperature, the plug valve 5 of the valve 4 is melted by the heating device 22 to connect the tank body 2 to the outside, thereby suppressing an increase in internal pressure of the tank body 2. Can do.
As a result, it is possible to further speed up the operation of the valve 4 due to an increase in the ambient temperature.

なお、上述したように、本実施形態のヒューズ２１はタンク本体２を構成するライナーの外周側に埋め込まれているがこれは一例にすぎず、これ以外の形態であってもよく、例えば、当該ヒューズ２１はタンク本体２の外側表面に取り付けられていてもよい。要は、当該高圧タンクの後端側（本実施形態の場合、バルブ４や溶栓弁５とは逆の側）が火災等で加熱されたような場合に当該温度の異常な上昇を検出することができるものであれば設置の形態は特に限定されない。また、ヒューズ２１の代わりに温度を直接的に検出するセンサを利用してもよい。   As described above, the fuse 21 of the present embodiment is embedded in the outer peripheral side of the liner constituting the tank body 2, but this is only an example, and other forms may be used. The fuse 21 may be attached to the outer surface of the tank body 2. In short, when the rear end side of the high-pressure tank (the side opposite to the valve 4 or the plug valve 5 in this embodiment) is heated by a fire or the like, an abnormal rise in the temperature is detected. The installation form is not particularly limited as long as it can be used. Further, a sensor that directly detects the temperature may be used instead of the fuse 21.

あるいは、上述のように溶栓弁５を強制的に作動（溶融）させる以外に、バルブ４やタンク本体２に外力を作用させてガスの放出路を形成するようにしても構わない。すなわち、上述のヒューズ２１や温度センサ等によって温度の異常上昇を検出した場合、バルブ４やタンク本体２の一部を溶融したり粉砕したりする等してガス放出路を形成することにより、タンク内のガスを放出することが可能となる。溶融ないしは粉砕のための手段としては例えばヒータや火薬などを用いることができる。   Alternatively, in addition to forcibly operating (melting) the fusing valve 5 as described above, an external force may be applied to the valve 4 or the tank body 2 to form a gas discharge path. That is, when an abnormal rise in temperature is detected by the above-described fuse 21 or temperature sensor, the tank 4 is formed by forming a gas discharge path by melting or pulverizing a part of the valve 4 or the tank body 2. It becomes possible to release the gas inside. As a means for melting or crushing, for example, a heater or explosive can be used.

第１実施形態に係る高圧タンクを説明する概略側断面図である。It is a schematic sectional side view explaining the high pressure tank which concerns on 1st Embodiment. 第２実施形態に係る高圧タンクを説明する概略側断面図である。It is a schematic sectional side view explaining the high pressure tank which concerns on 2nd Embodiment. 第３実施形態に係る高圧タンクを説明する概略側断面図である。It is a schematic sectional side view explaining the high pressure tank which concerns on 3rd Embodiment.

符号の説明Explanation of symbols

１Ａ，１Ｂ，１Ｃ…高圧タンク、２…タンク本体、３…開口部、４…バルブ、５…溶栓弁、６…伝熱部材、１１，２１…ヒューズ（温度センサ）、１２，２２…加熱装置（開放手段）。   1A, 1B, 1C ... high pressure tank, 2 ... tank body, 3 ... opening, 4 ... valve, 5 ... fusing valve, 6 ... heat transfer member, 11,21 ... fuse (temperature sensor), 12, 22 ... heating Device (opening means).

Claims (10)

内部にガスを収容するタンク本体と、
該タンク本体の開口部に設けられるバルブと、
該バルブまたはその近傍に設けられる溶栓弁と、
前記タンク本体のうち前記溶栓弁から離間した部位が加熱された場合に前記ガスの放出路を形成する開放手段と、
を備えることを特徴とする高圧タンク。 A tank body containing gas inside,
A valve provided at the opening of the tank body;
A plug valve provided in or near the valve;
An opening means for forming the gas discharge path when a portion of the tank body that is separated from the plug valve is heated;
A high-pressure tank comprising: 前記開放手段は、前記加熱された部位の熱を前記溶栓弁へと伝達する伝熱部材を含む請求項１に記載の高圧タンク。   The high-pressure tank according to claim 1, wherein the opening means includes a heat transfer member that transfers heat of the heated portion to the plug valve. 前記伝熱部材が前記タンク本体の外壁に内蔵されている請求項２に記載の高圧タンク。   The high-pressure tank according to claim 2, wherein the heat transfer member is built in an outer wall of the tank body. 前記伝熱部材はアルミニウム製の薄板からなる請求項３に記載の高圧タンク。   The high-pressure tank according to claim 3, wherein the heat transfer member is made of an aluminum thin plate. 前記開放手段は、前記加熱された部位が所定温度に達したことを検出するセンサと、該センサによる検出信号を受けて前記ガス放出路を強制的に形成するガス放出路形成装置と、からなる請求項１に記載の高圧タンク。   The opening means includes a sensor that detects that the heated portion has reached a predetermined temperature, and a gas discharge path forming device that forcibly forms the gas discharge path in response to a detection signal from the sensor. The high pressure tank according to claim 1. 前記ガス放出路形成装置は、前記溶栓弁を所定温度まで加熱するためのヒータである請求項５に記載の高圧タンク。   The high-pressure tank according to claim 5, wherein the gas discharge path forming device is a heater for heating the plug valve to a predetermined temperature. 前記ガス放出路形成装置は、前記タンク本体のうち前記溶栓弁以外のいずれかの部位を変形させて前記ガス放出路を強制的に形成するものである請求項５に記載の高圧タンク。   The high pressure tank according to claim 5, wherein the gas discharge path forming device forcibly forms the gas discharge path by deforming any part of the tank body other than the plug valve. 前記センサは、所定温度で断線するヒューズからなる請求項５から７のいずれか一項に記載の高圧タンク。   The high-pressure tank according to any one of claims 5 to 7, wherein the sensor includes a fuse that is disconnected at a predetermined temperature. 前記ヒューズは、線状に形成され、前記タンク本体の前記開口部側から該開口部とは反対のエンド側に沿って配設されている請求項８に記載の高圧タンク。   The high-pressure tank according to claim 8, wherein the fuse is formed in a linear shape and is disposed along an end side opposite to the opening from the opening side of the tank body. 前記ヒューズは、前記タンク本体の前記開口部側から該開口部とは反対のエンド側に沿って間隔をあけて複数設けられている請求項８に記載の高圧タンク。   The high-pressure tank according to claim 8, wherein a plurality of the fuses are provided at intervals from the opening side of the tank body along an end side opposite to the opening.
JP2007136621A 2007-05-23 2007-05-23 High pressure tank Expired - Fee Related JP5007809B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007136621A JP5007809B2 (en) 2007-05-23 2007-05-23 High pressure tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007136621A JP5007809B2 (en) 2007-05-23 2007-05-23 High pressure tank

Publications (2)

Publication Number Publication Date
JP2008291891A true JP2008291891A (en) 2008-12-04
JP5007809B2 JP5007809B2 (en) 2012-08-22

Family

ID=40166834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007136621A Expired - Fee Related JP5007809B2 (en) 2007-05-23 2007-05-23 High pressure tank

Country Status (1)

Country Link
JP (1) JP5007809B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101113577B1 (en) 2009-10-01 2012-02-22 기아자동차주식회사 Fire safety apparatus of high-pressure gas fuel tank
KR101180996B1 (en) 2009-11-27 2012-09-07 기아자동차주식회사 Fire safety apparatus of high-pressure gas fuel tank
US8299144B2 (en) 2009-11-30 2012-10-30 Hyundai Motor Company TPO nanocomposites and methods of use
KR101509789B1 (en) * 2009-10-08 2015-04-06 현대자동차주식회사 Compressed Gas Safety System
JP2015175416A (en) * 2014-03-14 2015-10-05 トヨタ自動車株式会社 gas storage tank
DE102018202742A1 (en) * 2018-02-23 2019-08-29 Audi Ag Pressure tank for a motor vehicle and motor vehicle
US10525824B2 (en) 2017-08-09 2020-01-07 Toyota Jidosha Kabushiki Kaisha High-pressure vessel unit
JP2020085137A (en) * 2018-11-27 2020-06-04 トヨタ自動車株式会社 High-pressure tank
US11247554B2 (en) 2017-08-10 2022-02-15 Toyota Jidosha Kabushiki Kaisha High pressure container
US11407317B2 (en) 2018-12-10 2022-08-09 Toyota Jidosha Kabushiki Kaisha Vehicular gas supply system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020201040A1 (en) * 2020-01-29 2021-07-29 Robert Bosch Gesellschaft mit beschränkter Haftung Pressurized gas storage, fuel cell system with pressurized gas storage
JP2023131750A (en) * 2022-03-09 2023-09-22 日本化薬株式会社 Relief valve for high pressure tank

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5670199A (en) * 1979-11-07 1981-06-11 Sanko Kinzoku Kogyo Kk Case for metalic sealed container with safety valve and production thereof
JPH1019195A (en) * 1996-07-05 1998-01-23 Yazaki Corp Bulk container for liquefied gas
JPH10188903A (en) * 1996-12-27 1998-07-21 Toshiba Lighting & Technol Corp Discharge lamp, discharge lamp device and indicator using the same
JP2002195499A (en) * 2000-12-26 2002-07-10 Honda Motor Co Ltd Safety valve for high-pressure hydrogen tank
JP2005069417A (en) * 2003-08-27 2005-03-17 High Pressure Gas Safety Institute Of Japan High-pressure gas container
JP2005102997A (en) * 2003-09-30 2005-04-21 Rinnai Corp Rice cooker
JP2005315294A (en) * 2004-04-27 2005-11-10 Toyota Motor Corp High pressure tank
JP2005345276A (en) * 2004-06-03 2005-12-15 Japan Atom Energy Res Inst Radiation-resistant small-sized stop plug

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5670199A (en) * 1979-11-07 1981-06-11 Sanko Kinzoku Kogyo Kk Case for metalic sealed container with safety valve and production thereof
JPH1019195A (en) * 1996-07-05 1998-01-23 Yazaki Corp Bulk container for liquefied gas
JPH10188903A (en) * 1996-12-27 1998-07-21 Toshiba Lighting & Technol Corp Discharge lamp, discharge lamp device and indicator using the same
JP2002195499A (en) * 2000-12-26 2002-07-10 Honda Motor Co Ltd Safety valve for high-pressure hydrogen tank
JP2005069417A (en) * 2003-08-27 2005-03-17 High Pressure Gas Safety Institute Of Japan High-pressure gas container
JP2005102997A (en) * 2003-09-30 2005-04-21 Rinnai Corp Rice cooker
JP2005315294A (en) * 2004-04-27 2005-11-10 Toyota Motor Corp High pressure tank
JP2005345276A (en) * 2004-06-03 2005-12-15 Japan Atom Energy Res Inst Radiation-resistant small-sized stop plug

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101113577B1 (en) 2009-10-01 2012-02-22 기아자동차주식회사 Fire safety apparatus of high-pressure gas fuel tank
KR101509789B1 (en) * 2009-10-08 2015-04-06 현대자동차주식회사 Compressed Gas Safety System
KR101180996B1 (en) 2009-11-27 2012-09-07 기아자동차주식회사 Fire safety apparatus of high-pressure gas fuel tank
US8299144B2 (en) 2009-11-30 2012-10-30 Hyundai Motor Company TPO nanocomposites and methods of use
JP2015175416A (en) * 2014-03-14 2015-10-05 トヨタ自動車株式会社 gas storage tank
US10525824B2 (en) 2017-08-09 2020-01-07 Toyota Jidosha Kabushiki Kaisha High-pressure vessel unit
US11247554B2 (en) 2017-08-10 2022-02-15 Toyota Jidosha Kabushiki Kaisha High pressure container
US11701963B2 (en) 2017-08-10 2023-07-18 Toyota Jidosha Kabushiki Kaisha High pressure container
DE102018202742A1 (en) * 2018-02-23 2019-08-29 Audi Ag Pressure tank for a motor vehicle and motor vehicle
DE102018202742B4 (en) 2018-02-23 2021-09-02 Audi Ag Pressure tank for an automobile and an automobile
JP2020085137A (en) * 2018-11-27 2020-06-04 トヨタ自動車株式会社 High-pressure tank
JP7302164B2 (en) 2018-11-27 2023-07-04 トヨタ自動車株式会社 high pressure tank
US11407317B2 (en) 2018-12-10 2022-08-09 Toyota Jidosha Kabushiki Kaisha Vehicular gas supply system

Also Published As

Publication number Publication date
JP5007809B2 (en) 2012-08-22

Similar Documents

Publication Publication Date Title
JP5007809B2 (en) High pressure tank
US6382232B1 (en) Remote triggering system and retrofit kit for thermal-pressure relief devices
US7721750B2 (en) Modified heat pipe for activation of a pressure relief device
US5848604A (en) Thermally responsive pressure relief system
EP2979935B1 (en) Gas generator
CN102913674B (en) Hot pressure relief device
CN107293656B (en) Battery cover plate structure capable of exhausting air at high temperature and battery
US20150260347A1 (en) Gas containing tank
US11000717B2 (en) Sprinkler head
US20140097260A1 (en) Thermal Protection System For Pressurized Gas Cylinders In Vehicles
KR20110038284A (en) Compressed gas safety system
KR20110057716A (en) Fire safety apparatus of system storing highly pressurized gas
JP2005315294A (en) High pressure tank
CN106574742B (en) For protecting the device of motor vehicle high-pressure gas container
US11993142B2 (en) Motor vehicle having a pressure relief device that can be thermally activated, and method for pressure relief
EP3133687B1 (en) Container with heating device and safety device
JP2009041710A (en) Gas tank
JP2009121510A (en) Valve assembly and pressure container
CN110787391A (en) Ring formula extinguishing device, battery box, electric automobile
JP4318293B2 (en) High pressure gas container
JP2009121568A (en) Fuel gas supplying device and mobile body with it
CN111174103B (en) Hydrogen leakage prevention device
CN114641645B (en) Tank arrangement for temperature and pressure unloading of fuel cell tanks
JP4873156B2 (en) Melting plug
JP2006029577A (en) Fusible tap

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090807

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20111014

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111019

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111216

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120119

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120315

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120502

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120515

R151 Written notification of patent or utility model registration

Ref document number: 5007809

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150608

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees