JP2005257340A - Gas leak detection device for high-pressure tank system - Google Patents

Gas leak detection device for high-pressure tank system Download PDF

Info

Publication number
JP2005257340A
JP2005257340A JP2004066226A JP2004066226A JP2005257340A JP 2005257340 A JP2005257340 A JP 2005257340A JP 2004066226 A JP2004066226 A JP 2004066226A JP 2004066226 A JP2004066226 A JP 2004066226A JP 2005257340 A JP2005257340 A JP 2005257340A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
gas
pressure
high
space
control 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.)
Withdrawn
Application number
JP2004066226A
Other languages
Japanese (ja)
Inventor
Osamu Yumita
修 弓田
Original Assignee
Toyota Motor Corp
トヨタ自動車株式会社
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

Links

Images

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 or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/50Fuel cells

Abstract

<P>PROBLEM TO BE SOLVED: To propose a gas leak detection device capable of performing high-precision gas leak detection, without requiring a high-resolution pressure sensor. <P>SOLUTION: This gas leak detection device is a device for detecting gas leakage in a fuel gas pipeline (21) of a high-pressure hydrogen tank system (10) for mounting on a fuel battery car, and is provided with a control valve (A5) for separating the gas pipeline (21) into a plurality of closed spaces, a differential pressure sensor (P) for detecting the pressure difference between closed spaces separated by the control valve (A5), and a deciding means (30) for deciding gas leakage, based on the pressure difference detected by the pressure sensor (P). Since gas leakage in the gas pipeline (21) is detected, by separating the gas pipeline (21) into a plurality of closed spaces and detecting the differential pressure between closed spaces, high-precision gas leak detection can be performed, even if a high-resolution pressure sensor is not used. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は高圧タンクシステムのガス漏れ検出装置に関し、特に、燃料電池車両搭載用の高圧水素タンクシステムに好適なガス漏れ検出装置に関する。 The present invention relates to a gas leakage detection system of the high-pressure tank system, in particular, relates to suitable gas leakage detection system into a high-pressure hydrogen tank system for a fuel cell vehicle mounted.

燃料電池をオンボード発電機として搭載する燃料電池車両においては車両の航続距離を延ばすために高圧水素タンクをより高圧化する傾向にある(例えば35〜70MPa)。 In the fuel cell vehicle equipped with a fuel cell as an on-board generator tends to higher pressure the high-pressure hydrogen tank to extend the cruising range of the vehicle (e.g. 35~70MPa). 一方、燃料電池システムのガス漏れ対策として、特開2003−148252号公報には燃料ガスの配管系統に圧力センサを設置し、圧力センサが検出した圧力降下量が所定値以上になったときに、燃料ガスの供給系統を遮断する構成が提案されている。 On the other hand, the gas leakage countermeasure of the fuel cell system, the JP 2003-148252 install the pressure sensor in the piping system of the fuel gas, when the pressure drop detected by the pressure sensor exceeds a predetermined value, configured to cut off the supply system of the fuel gas has been proposed.
特開2003−148252号公報 JP 2003-148252 JP

しかし、高圧水素タンクの高圧化に伴い、広範囲のガス圧を検出できる圧力センサが必要になる。 However, with the high pressure of the high-pressure hydrogen tank, it is necessary to pressure sensor that can detect a wide range of gas pressure. 圧力センサのレンジを広くとると、センサの分解能は必然的に低くなる(ダイナミックレンジは小さくなる)ため、燃料ガス配管系統のガス漏れによる微小な圧力変化を検出することが困難となる。 Taking wide range of the pressure sensor, the resolution of the sensor for inevitably low (dynamic range becomes smaller), it is difficult to detect a minute pressure change due to gas leakage in the fuel gas piping system.

そこで、本発明は高分解能の圧力センサを要することなく、高精度なガス漏れ検出を行えるガス漏れ検出装置を提案することを課題とする。 Accordingly, the present invention without requiring a pressure sensor of high resolution, it is an object to propose a gas leakage detection system that can perform highly accurate gas leak detection.

上記の課題を解決するため、本発明のガス漏れ検出装置は高圧タンクシステムのガス配管系統におけるガス漏れを検出するための装置であって、ガス配管系統を複数の空間に分離する制御弁と、制御弁によって分離された空間同士の圧力差を検出する差圧センサと、差圧センサが検出した圧力差に基づいてガス漏れを判定する判定手段と、を備える。 To solve the above problems, an apparatus for gas leakage detection system of the present invention for detecting a gas leak in the gas piping system of the high-pressure tank system, and a control valve which separates the gas piping system into a plurality of spaces, comprising a differential pressure sensor for detecting a pressure difference between the space between separated by the control valve, a determination unit configured to determine gas leakage based on the pressure differential pressure sensor has detected, the. ガス配管系統を複数の空間に分離し、空間同士の差圧を検出することでガス配管系統のガス漏れを検出できるため、高分解能の圧力センサがなくても高精度なガス漏れ検出を行うことができる。 Gas piping system into a plurality of spaces, it is possible to detect a gas leak in the gas piping system by detecting the differential pressure between the spaces, that even without the pressure sensor of high resolution with high accuracy gas leak detection can. 制御弁によって分離される各空間は密閉空間であることが望ましいが、必ずしも密閉空間である必要はなく、例えば、各空間から同一条件でガスが放出されている状態ならば、ガス漏れ検出が可能である。 Although it is desirable each space separated by the control valve is a closed space, not necessarily closed space, for example, if a state in which the gas under the same conditions from the space is released, allows gas leakage detection it is. また、制御弁によって分離された複数の空間のうち何れかの空間が密閉空間でなくても、各空間の圧力差の変化状態等からガス漏れ検出が可能である。 Also, any space among a plurality of spaces separated by the control valve is not closed space, it is possible gas leakage detection from such state of change of the pressure difference between the spaces.

ここで、制御弁はガス配管系統の上流に設置された高圧タンクからその下流に至る経路上に配設されており、閉弁することによってガス配管系統を制御弁よりも下流側の第1の空間と、制御弁よりも上流側の第2の空間とに分離し、差圧センサは第1の空間と第2の空間の圧力差を検出し、判定手段は制御弁が閉弁することによって分離された第1の空間と第2の空間の圧力差に基づいてガス漏れを判定するように構成してもよい。 The control valve is disposed on a path on the downstream from the high pressure tank is installed upstream of the gas piping system, the first on the downstream side of the control valve of the gas piping system by closing and space, separated into a second space on the upstream side of the control valve, by the differential pressure sensor detects the pressure difference between the first space and the second space, determination means for control valve is closed it may be configured to determine the gas leak on the basis of the pressure difference between the separated first and second spaces. 第2の空間として、例えば、高圧タンクから制御弁に至る空間が好適である。 As a second space, for example, it is preferable space leading to the control valve from the high pressure tank.

本発明のガス漏れ検出装置はあらゆる高圧タンクシステムのガス漏れ判定に適用することができ、例えば、燃料電池車両搭載用の高圧水素タンクシステムの燃料ガス配管系統のガス漏れ判定に好適である。 Gas leakage detection system of the present invention can be applied to a gas leakage judgment of all the high-pressure tank system, for example, it is suitable for the gas leakage determination of the fuel gas piping system of the high-pressure hydrogen tank system for a fuel cell vehicle mounted.

本発明によれば、ガス配管系統を複数の空間に分離し、空間同士の差圧を検出することでガス配管系統のガス漏れを検出できるため、高分解能の圧力センサがなくても高精度なガス漏れ検出を行うことができる。 According to the present invention, the gas piping system into a plurality of spaces, it is possible to detect a gas leak in the gas piping system by detecting the differential pressure between the space, also high precision without pressure sensor with high resolution it is possible to perform the gas leakage detection.

図1は本実施形態に係わる高圧水素タンクシステムの構成を示している。 Figure 1 shows the structure of a high-pressure hydrogen tank system according to the present embodiment. 高圧水素タンクシステム10は燃料電池車両搭載用の水素供給システムとして構成されており、水素ガスを高圧(例えば35〜70MPa)に充填した複数の高圧水素タンク11〜14と、これらの高圧水素タンク11〜14から燃料電池スタック(図示せず)へ燃料ガス(水素ガス)を供給するための燃料ガス配管系統21と、燃料ガス配管系統21を複数の密閉空間に分離するための制御弁A5と、制御弁A5によって分離された密閉空間同士の圧力差を検出する差圧センサ(又は差圧計)Pと、差圧センサPが検出した圧力差に基づいてガス漏れを判定する制御部30を主要構成として備えている。 High-pressure hydrogen tank system 10 is configured as a hydrogen supply system for a fuel cell vehicle mounted with a plurality of high-pressure hydrogen tank 11 to 14 were charged to a high pressure (e.g. 35~70MPa) hydrogen gas, these high-pressure hydrogen tank 11 a fuel gas piping system 21 for supplying fuel gas (hydrogen gas) to the fuel cell stack (not shown) from to 14, and a control valve A5 for separating fuel gas piping system 21 into a plurality of sealed spaces, the main components and the differential pressure sensor (or differential pressure gauge) P for detecting and controlling unit 30 judges gas leakage on the basis of the pressure differential pressure sensor P detects the pressure difference between the sealed space between separated by the control valve A5 It has as.

燃料ガス配管系統21は複数の分岐管21a〜21dに分岐して複数の水素タンク11〜14に接続している。 The fuel gas piping system 21 is branched into a plurality of branch pipes 21a~21d are connected to a plurality of hydrogen tanks 11 to 14. 各々の分岐管21a〜21dには水素タンク11〜14の元栓バルブ(電磁遮断弁)A1〜A4が配設されている。 Stopcock valve (electromagnetic shutoff valve) Al to A4 of the hydrogen tanks 11 to 14 is disposed in each of the branch pipes 21a to 21d. 燃料ガス配管系統21を流れる燃料ガスは調圧弁(レギュレータ)A6によって所定圧に調圧(減圧)された後、燃料電池スタックに供給される。 After being pressure regulating (low pressure) to the predetermined pressure by the fuel gas pressure regulating valve (regulator) A6 flowing through the fuel gas pipe system 21, it is supplied to the fuel cell stack. 制御部30は高圧水素タンクシステム10を制御するシステムコントローラとして機能し、元栓バルブA1〜A4を開閉制御して燃料電池スタックへの燃料ガスの供給を行う高圧水素タンク11〜14を切り替える。 The control unit 30 functions as a system controller for controlling the high-pressure hydrogen tank system 10, switches the high-pressure hydrogen tank 11 to 14 for supplying the fuel gas to the fuel cell stack main cock valve A1~A4 opening and closing control to. 燃料ガス配管系統21の上流に設置された高圧水素タンク11〜14からその下流に至る経路上(ここでは、調圧弁A6と分岐管21a〜21dとの間の任意の箇所)には制御弁A5が配設されており、制御弁A5が閉弁されることによって、燃料ガス配管系統21は制御弁A5よりも下流側の密閉空間(ここでは、制御弁A5から調圧弁A6に至る空間)SP1と、制御弁A5よりも上流側の密閉空間(ここでは、高圧水素タンク11〜14から制御弁A5に至る空間)SP2に分離される。 The path extending from the high pressure hydrogen tank 11 to 14 disposed upstream of the fuel gas piping system 21 to the downstream (in this case, any point between the regulating valve A6 branch pipes 21a to 21d) control valve to A5 There is disposed, a control valve A5 is closed, the fuel gas piping system 21 downstream enclosed space (here, the space leading to the pressure regulating valve A6 from the control valve A5) than the control valve A5 SP1 When (here, the space leading to the control valve A5 from the high-pressure hydrogen tank 11 to 14) enclosed space upstream of the control valve A5 is separated into SP2. ガス漏れ判定時に調圧弁A6が全閉するときは、密閉空間SP1は制御弁A5から調圧弁A6に至る空間であるが、調圧弁A6が全閉しないときは、密閉空間SP1は制御弁A5から燃料電池スタックの入口弁又は出口弁に至る空間としてもよい。 When gas leakage judgment during the pressure regulating valve A6 is fully closed, when it closed space SP1 is a space leading to the pressure regulating valve A6 from the control valve A5, the pressure regulating valve A6 is not fully closed, the enclosed space SP1 from the control valve A5 or as a space leading to the inlet valve or outlet valve of the fuel cell stack.

制御部30は予め定められた所定条件下でガス漏れ判定モードに移行し、制御弁A5を開閉制御して燃料ガス供給系統21を複数の密閉空間SP1〜SP2に分離し、差圧センサPが検出した密閉区間同士の圧力差が予め定められた閾値を超えた場合に燃料ガス配管系統21にガス漏れが生じていると判定するガス漏れ判定手段として機能する。 The control unit 30 proceeds to a gas leak determination mode under predetermined conditions a predetermined, a fuel gas supply system 21 into a plurality of sealed spaces SP1~SP2 the control valve A5 closing control to the differential pressure sensor P is functions as a determining gas leak judgment means gas is leaking in the fuel gas piping system 21 when the pressure difference between the sealing section between the detected exceeds a predetermined threshold. 複数の密閉空間のうち何れかの密閉空間にガス漏れが生じている場合には、当該密閉空間のガス圧はガス漏れが生じてない他の密閉空間のガス圧と比較して相対的に低下するため、圧力差が生じる。 If the gas leakage has occurred in any of the enclosed space of the plurality of closed spaces, the gas pressure of the enclosed space is relatively reduced as compared to the gas pressure in the other sealed space gas leakage has not occurred to a pressure difference is generated. 例えば、密閉空間SP1のガス圧が密閉空間SP2のガス圧よりも低下して圧力差が閾値以上になった場合には、制御弁A5よりも下流側の配管に亀裂等が生じてガス漏れが生じていると推測できる。 For example, if the pressure difference was lower than the gas pressure of the closed space SP1 is the gas pressure in the enclosed space SP2 is equal to or greater than the threshold value, the gas leakage crack or the like occurs on the downstream side of the pipe than the control valve A5 is occur and to be able to guess. また、高圧水素タンク11〜14に連通する密閉空間SP2のガス圧が密閉空間SP1のガス圧よりも上昇して圧力差が閾値以上になった場合には、何れかの元栓バルブA1〜A4に開故障又は半開故障が生じて高圧水素タンク11〜14から燃料ガス配管系統21へ燃料ガスが漏出していることが推測できる。 Further, when the gas pressure in the enclosed space SP2 communicating with the high-pressure hydrogen tank 11 to 14 differential pressure rises than the gas pressure of the closed space SP1 is equal to or greater than the threshold value, to one of main tap valve A1~A4 fuel gas from the high-pressure hydrogen tank 11 to 14 occurs open fault or half open failure to the fuel gas piping system 21 can be inferred that the leaking. ここで、「開故障」とはバルブが開いたままになって閉弁できなくなる故障状態をいい、「半開故障」とはバルブが途中までしか閉弁せずに半開状態になる故障状態をいう。 Here, the "open failure" refers to the fault condition can not be closed remains the valve is opened, it refers to a fault condition to become a half-open state without only closed until the middle of the valve is the "half-open fault" . ガス漏れ判定では2つの密閉空間SP1,SP2が実質的に同圧である状態で差圧センサPが両空間の圧力差を検出し、この圧力差が閾値を超えた場合にガス漏れが生じていると判定する。 Gas leakage judgment two sealed spaces in SP1, SP2 is the differential pressure sensor P in a state that is substantially the same pressure detects the pressure difference between both spaces, gas leakage occurs in the case where the pressure difference exceeds a threshold value It determines that there. ガス漏れが生じてないときの密閉空間SP1,SP2同士の圧力差はそれ程大きくないため差圧センサPの検出レンジが狭くても、高精度なガス漏れ判定を行うことができる。 Even narrow detection range of the differential pressure sensor P for closed space SP1, SP2 pressure difference between is not so large when the gas leakage has not occurred, it is possible to perform highly accurate gas leakage determination. つまり、同コストの差圧センサを比較すると、検出レンジが狭い程、差圧センサの分解能を相対的に高めることができるので、差圧センサPとして低コストのセンサを選択しても、高精度なガス漏れ判定を行うに足りる十分な分解能が得られる。 That is, when comparing the differential pressure sensor of the same cost, as the narrow detection range, it is possible to relatively increase the resolution of the differential pressure sensor, selecting a low-cost sensor as differential pressure sensor P, Precision sufficient resolution is obtained sufficient to perform a gas leakage judgment.

燃料ガス配管系統21のガス漏れ判定を行うには、燃料ガスの供給経路上に配設された制御弁A5を閉弁する必要があるので、通常運転時以外のタイミング、例えば、システム起動直後、システム停止直前、又は燃料電池の要求負荷が小さいときにガス漏れ判定を行うのが望ましい。 To do gas leak judgment of the fuel gas piping system 21, it is necessary to close the control valve A5 disposed on the supply path of the fuel gas, the timing other than the normal operation, for example, immediately after the system startup, system stop immediately before, or fuel required load of the battery to perform the gas leakage determination when a small desirable. 特に、燃料電池と蓄電装置(二次電池又はキャパシタ)を混載したハイブリッド車両では、車両走行中であっても、蓄電装置から供給される電力で車両走行可能である場合は燃料電池の運転を停止して燃料ガス配管系統21のガス漏れ判定を行ってもよい。 In particular, in the fuel cell power storage device hybrid vehicle embedded with (secondary battery or capacitor), even while the vehicle is running, stops the operation of the fuel cell if possible vehicle travel by the power supplied from the power storage device it may be carried out gas leak judgment of the fuel gas piping system 21 in. 制御部30はガス漏れを検出すると、システム異常停止等の処理を行う。 When the control unit 30 detects a gas leak, it performs processing such as a system hang.

尚、制御弁A5としては、閉弁時の気密性の高いバルブが望ましく、オンオフ弁、リニア弁など各種のバルブを利用できるが、電磁遮断弁が好適である。 As the control valve A5, is preferably airtight valve when the valve is closed, on-off valve, can be utilized various valves such as a linear valve, the solenoid shut-off valve is suitable. また、制御弁A5と差圧センサPの個数はそれぞれ単一に限らず、複数であってもよい。 The number of control valves A5 and the differential pressure sensor P is not limited to a single respective, it may be plural. また、制御弁A5の配設箇所としては、燃料ガス配管系統21の特定位置に限られるものではなく、例えば、図2に示すように、調圧弁A6の下流側であってもよい。 As the distribution 設箇 plant control valve A5, is not limited to the particular position of the fuel gas piping system 21, for example, as shown in FIG. 2, it may be a downstream side of the pressure regulating valve A6. 差圧センサPは制御弁A5によって分離された下流側の密閉空間SP3と上流側の密閉空間SP4の差圧を検出できるように設置されている。 Differential pressure sensor P is installed so as to detect the differential pressure of the closed space SP4 closed space SP3 and upstream of the downstream side separated by the control valve A5. また、ガス漏れ判定の誤判定を避けるために、制御弁A5を閉弁して複数の密閉空間SP1,SP2(又は密閉空間SP3,SP4)を形成した場合には、これらの密閉空間SP1,SP2(又は密閉空間SP3,SP4)のガス圧が安定するまでの所定時間が経過してから差圧を検出するようにしてもよい。 Further, in order to avoid erroneous determination of gas leakage determination, when it closes the control valve A5 to form a plurality of sealed spaces SP1, SP2 (or enclosed space SP3, SP4), these closed spaces SP1, SP2 (or enclosed space SP3, SP4) gas pressure may be adapted to detect the differential pressure after the elapse of a predetermined time to stabilize. また、上述の説明では燃料電池車両に搭載される高圧水素タンクシステム10の燃料ガス漏れを検出する構成を例示したが、本発明はこれに限られるものではなく、各種の高圧タンクシステムのガス漏れ検出に適用できる。 Further, although the above description has exemplified the arrangement for detecting a fuel gas leak of the high-pressure hydrogen tank system 10 which is mounted on a fuel cell vehicle, the present invention is not limited to this, gas leakage various high-pressure tank system It can be applied to the detection.

本実施形態によれば、差圧センサPの検出レンジが狭くても、高精度なガス漏れ判定を行うことができる。 According to this embodiment, even if narrow detection range of the differential pressure sensor P, it is possible to perform highly accurate gas leakage determination. また、制御弁A5と差圧センサPを配設するだけで、高精度なガス漏れ検出装置が実現できるため、低コストである。 Further, just arranging the control valve A5 and the differential pressure sensor P, since the highly accurate gas leak detection device can be realized, and low cost.

本実施形態の高圧水素タンクシステムの構成図である。 It is a configuration diagram of a high-pressure hydrogen tank system of the present embodiment. 本実施形態の高圧水素タンクシステムの構成図である。 It is a configuration diagram of a high-pressure hydrogen tank system of the present embodiment.

符号の説明 DESCRIPTION OF SYMBOLS

10…高圧水素タンクシステム 11〜14…高圧水素タンク 21…燃料ガス配管系統 21a〜21d…分岐管 30…制御部 A1〜A4…元栓バルブ A5…制御弁 A6…調圧弁 P…差圧センサ 10 ... high-pressure hydrogen tank system 11-14 ... a high-pressure hydrogen tank 21 ... fuel gas piping system 21a to 21d ... branch pipe 30 ... control unit Al to A4 ... stopcock valve A5 ... control valve A6 ... regulating valve P ... differential pressure sensor

Claims (4)

  1. 高圧タンクシステムのガス配管系統におけるガス漏れを検出するための装置であって、 An apparatus for detecting a gas leak in the gas piping system of the high-pressure tank system,
    前記ガス配管系統を複数の空間に分離する制御弁と、 A control valve which separates the gas piping system into a plurality of spaces,
    前記制御弁によって分離された空間同士の圧力差を検出する差圧センサと、 A differential pressure sensor for detecting a pressure difference between the space between separated by the control valve,
    前記差圧センサが検出した圧力差に基づいてガス漏れを判定する判定手段と、 Determining means for determining gas leakage based on the pressure differential the differential pressure sensor detects,
    を備える、ガス漏れ検出装置。 The provided, gas leakage detection system.
  2. 請求項1に記載のガス漏れ検出装置であって、 A gas leakage detection system according to claim 1,
    前記制御弁はガス配管系統の上流に設置された高圧タンクからその下流に至る経路上に配設されており、閉弁することによって前記ガス配管系統を前記制御弁よりも下流側の第1の空間と、前記制御弁よりも上流側の第2の空間とに分離し、 The control valve is disposed on a path on the downstream from the high pressure tank is installed upstream of the gas piping system, the first downstream side of the control valve the gas piping system by closing and space, separated into a second space on the upstream side of the control valve,
    前記差圧センサは前記第1の空間と前記第2の空間の圧力差を検出し、 The differential pressure sensor detects the pressure difference between the second space and the first space,
    前記判定手段は前記制御弁が閉弁することによって分離された前記第1の空間と前記第2の空間の圧力差に基づいてガス漏れを判定する、ガス漏れ検出装置。 Said determination means determines the gas leakage based on a pressure difference between the between the separated first space second space by the control valve is closed, the gas leakage detection system.
  3. 請求項2に記載のガス漏れ検出装置であって、 A gas leakage detection system according to claim 2,
    前記第2の空間は高圧タンクから前記制御弁に至る空間である、ガス漏れ検出装置。 The second space is a space extending from the high-pressure tank to the control valve, the gas leakage detection system.
  4. 請求項1乃至請求項3のうち何れか1項に記載のガス漏れ検出装置であって、 A gas leakage detection system according to any one of claims 1 to 3,
    前記高圧タンクシステムは燃料電池車両搭載用の高圧水素タンクシステムであり、 The high-pressure tank system is a high-pressure hydrogen tank system for a fuel cell vehicle equipped with,
    前記ガス配管系統は前記高圧水素タンクシステムから燃料電池に水素ガスを供給するための燃料ガス配管系統である、ガス漏れ検出装置。 The gas piping system is a fuel gas piping system for supplying hydrogen gas to the fuel cell from the high-pressure hydrogen tank system, the gas leakage detection system.

JP2004066226A 2004-03-09 2004-03-09 Gas leak detection device for high-pressure tank system Withdrawn JP2005257340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004066226A JP2005257340A (en) 2004-03-09 2004-03-09 Gas leak detection device for high-pressure tank system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004066226A JP2005257340A (en) 2004-03-09 2004-03-09 Gas leak detection device for high-pressure tank system

Publications (1)

Publication Number Publication Date
JP2005257340A true true JP2005257340A (en) 2005-09-22

Family

ID=35083220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004066226A Withdrawn JP2005257340A (en) 2004-03-09 2004-03-09 Gas leak detection device for high-pressure tank system

Country Status (1)

Country Link
JP (1) JP2005257340A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100815308B1 (en) 2006-07-07 2008-03-19 현대자동차주식회사 Hydrogen Leak Detecting System And Method thereof For Fuel Cell Vehicle System
KR100849399B1 (en) 2008-04-29 2008-07-31 오희범 Multi-area gas leakage detection system using single gas detector
WO2008096801A1 (en) * 2007-02-05 2008-08-14 Toyota Jidosha Kabushiki Kaisha Fuel cell system
KR100911589B1 (en) 2007-12-12 2009-08-10 현대자동차주식회사 Airtight test apparatus for fuel cell stack
JP2010514622A (en) * 2006-12-29 2010-05-06 三星重工業株式会社Samsung Heavy Ind.Co.,Ltd. Test method for soundness of a secondary barrier in a liquefied gas tank
CN102156029A (en) * 2011-01-05 2011-08-17 重庆建设摩托车股份有限公司 Defect detection method of motorcycle fuel evaporation system
CN102706521A (en) * 2012-06-25 2012-10-03 昆山市恒安工业气体有限公司 Automatic airtightness detection system for voltage regulator
CN104122048A (en) * 2014-08-06 2014-10-29 苏州宝骅机械技术有限公司 High-pressure gas tightness detection system
JP2015132350A (en) * 2014-01-15 2015-07-23 トヨタ自動車株式会社 Valve device of tanks
CN105115676A (en) * 2015-08-14 2015-12-02 中国石油化工股份有限公司 A compressed natural gas dispenser hydrostatic pressure detection system
KR101620262B1 (en) * 2015-01-29 2016-05-12 한국가스공사 Leak Testing Apparatus of Ball valve for Natural Gas
JP2017220305A (en) * 2016-06-03 2017-12-14 本田技研工業株式会社 Fuel cell system and method for determining failure of fuel cell system

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100815308B1 (en) 2006-07-07 2008-03-19 현대자동차주식회사 Hydrogen Leak Detecting System And Method thereof For Fuel Cell Vehicle System
JP2010514622A (en) * 2006-12-29 2010-05-06 三星重工業株式会社Samsung Heavy Ind.Co.,Ltd. Test method for soundness of a secondary barrier in a liquefied gas tank
US8802310B2 (en) 2007-02-05 2014-08-12 Toyota Jidosha Kabushiki Kaisha Fuel cell system
WO2008096801A1 (en) * 2007-02-05 2008-08-14 Toyota Jidosha Kabushiki Kaisha Fuel cell system
JP2008192468A (en) * 2007-02-05 2008-08-21 Toyota Motor Corp Fuel cell system
KR100911589B1 (en) 2007-12-12 2009-08-10 현대자동차주식회사 Airtight test apparatus for fuel cell stack
KR100849399B1 (en) 2008-04-29 2008-07-31 오희범 Multi-area gas leakage detection system using single gas detector
CN102156029A (en) * 2011-01-05 2011-08-17 重庆建设摩托车股份有限公司 Defect detection method of motorcycle fuel evaporation system
CN102706521A (en) * 2012-06-25 2012-10-03 昆山市恒安工业气体有限公司 Automatic airtightness detection system for voltage regulator
JP2015132350A (en) * 2014-01-15 2015-07-23 トヨタ自動車株式会社 Valve device of tanks
CN104122048A (en) * 2014-08-06 2014-10-29 苏州宝骅机械技术有限公司 High-pressure gas tightness detection system
KR101620262B1 (en) * 2015-01-29 2016-05-12 한국가스공사 Leak Testing Apparatus of Ball valve for Natural Gas
CN105115676A (en) * 2015-08-14 2015-12-02 中国石油化工股份有限公司 A compressed natural gas dispenser hydrostatic pressure detection system
JP2017220305A (en) * 2016-06-03 2017-12-14 本田技研工業株式会社 Fuel cell system and method for determining failure of fuel cell system

Similar Documents

Publication Publication Date Title
KR20100012401A (en) Apparatus and method for diagnosing car
US8342157B2 (en) Checking functionality of fuel tank vapor pressure sensor
US7127937B1 (en) Method for leak detection in gas feeding systems with redundant valves
US20070193340A1 (en) Gas leak detection device and method for same
US20090064764A1 (en) Anomaly judgment device
JP2007165237A (en) Fuel cell system and mobile body
US20090292399A1 (en) Method for detecting malfunction of valve on the downstream side of throttle mechanism of pressure type flow control apparatus
JP2006134861A (en) Fuel cell system and gas leakage detection method
JP2006156320A (en) Stopping method of gas consumption apparatus
JP2005339847A (en) Fuel cell system
JP2006294447A (en) Fault determination apparatus
JP2000303909A (en) Gas fuel supply system of vehicle
US20060231144A1 (en) Method of discharging high pressure storage vessels
JP2004327297A (en) Fuel charge control system
US20070056643A1 (en) Tank manifold assembly
US20110155278A1 (en) Cng time fill system and method with safe fill technology
US20100089127A1 (en) Passive Leak Detection Devices and Systems for Detecting Gas Leaks
JP2008223784A (en) Fuel supply device and vehicle
JP2006210055A (en) Abnormality detecting device
CN201816581U (en) Locomotive parking and braking safety cutoff device
CN203771037U (en) Backup-redundancy pneumatic control loop system
US20070012362A1 (en) Method for opening tank shut-off valves in gas feeding systems with connected tanks
US20030019481A1 (en) Fuel vapor treatment system
JP2003201921A (en) Gas fuel supplying device
JP2006140132A (en) Fuel supply system

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20061127

A761 Written withdrawal of application

Free format text: JAPANESE INTERMEDIATE CODE: A761

Effective date: 20071207