JP2000088195A - Adsorption type gas storage device - Google Patents
Adsorption type gas storage deviceInfo
- Publication number
- JP2000088195A JP2000088195A JP10258452A JP25845298A JP2000088195A JP 2000088195 A JP2000088195 A JP 2000088195A JP 10258452 A JP10258452 A JP 10258452A JP 25845298 A JP25845298 A JP 25845298A JP 2000088195 A JP2000088195 A JP 2000088195A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- storage tank
- gas storage
- adsorbent
- storage device
- 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- Withdrawn
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
(57)【要約】
【課題】 効率よく吸着材の加熱、冷却を行うことがで
きる吸着式ガス貯蔵装置を提供する。
【解決手段】 吸着材１２が収容されたガス貯蔵槽１０
には、ガス吸蔵時に、吸着熱により高温となったガスを
外部ガス供給装置１４に回帰させる弁３０及びガス回帰
通路２８が設けられている。また、エンジンへのガス供
給時には、ガス及び吸着材１２を加熱するための熱交換
器３６及び電気ヒータ３８が設けられたガス強制循環通
路３２が設けられ、ガスポンプ３４によりガスが強制循
環される。これにより、ガス貯蔵槽１０内のガス及び吸
着材１２を冷却及び加熱する場合に、常にガスを流動さ
せながら行うことができ、熱交換効率を向上させること
ができる。
(57) [Problem] To provide an adsorption type gas storage device capable of efficiently heating and cooling an adsorbent. SOLUTION: Gas storage tank 10 in which adsorbent 12 is stored.
Is provided with a valve 30 and a gas return passage 28 for returning the gas heated to a high temperature by the heat of adsorption to the external gas supply device 14 at the time of gas occlusion. Further, when supplying gas to the engine, a gas forced circulation passage 32 provided with a heat exchanger 36 for heating the gas and the adsorbent 12 and an electric heater 38 is provided, and the gas is forcibly circulated by a gas pump 34. Accordingly, when cooling and heating the gas and the adsorbent 12 in the gas storage tank 10, the cooling and heating can be performed while the gas is constantly flowing, and the heat exchange efficiency can be improved.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車載用の吸着式ガ
ス貯蔵装置の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an on-vehicle adsorption gas storage device.
【０００２】[0002]
【従来の技術】従来より、天然ガスやメタンあるいは水
素といったガス燃料により駆動されるエンジンに燃料と
なるガスを供給するためのガス貯蔵装置が提案されてい
る。かかるガス貯蔵装置においては、ガスを貯蔵するガ
ス貯蔵槽の中に吸着材を収容し、この吸着材にガスを吸
着させることによりガスの貯蔵量を増加させている。2. Description of the Related Art Conventionally, there has been proposed a gas storage device for supplying a fuel gas to an engine driven by a gas fuel such as natural gas, methane or hydrogen. In such a gas storage device, an adsorbent is accommodated in a gas storage tank that stores gas, and the gas is adsorbed by the adsorbent to increase the amount of stored gas.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記従来の吸
着式ガス貯蔵装置においては、活性炭等の吸着材に天然
ガスやメタン等のガスが吸着、脱離するときに、吸着熱
による温度上昇や脱離に伴う吸熱による温度低下が生じ
る。これらの温度変化をできるだけ小さくしないと、吸
着時には吸着材の温度上昇により吸着量が低下し、脱離
時には吸着材の温度低下により吸着材への吸着量が増加
する結果脱離量が低下するという問題があった。従っ
て、上記温度変化を小さくするための熱交換システムが
必要となる。However, in the above-mentioned conventional adsorption type gas storage device, when a gas such as natural gas or methane is adsorbed or desorbed on an adsorbent such as activated carbon, the temperature rise due to heat of adsorption or the like may be caused. A temperature drop occurs due to heat absorption accompanying the desorption. If these temperature changes are not made as small as possible, the amount of adsorption will decrease due to the temperature rise of the adsorbent during adsorption, and the amount of adsorption to the adsorbent will increase due to the temperature decrease of the adsorbent during desorption, resulting in a decrease in the amount of desorption There was a problem. Therefore, a heat exchange system for reducing the temperature change is required.
【０００４】特開昭６１−２５８９６１号公報にも、か
かる熱交換の必要性が指摘されている。しかし、本先行
技術においては、熱交換システムの具体的な構造等は開
示されていない。この熱交換システムとして、吸着材が
収容されているガス貯蔵槽を外部から冷却あるいは加熱
する方法も考えられる。しかし、ガス貯蔵槽を介した加
熱、冷却では、活性炭等の吸着材の熱伝導率が非常に小
さいことから効率の良い熱交換を行わせることができな
いという問題があった。[0004] Japanese Patent Application Laid-Open No. 61-258961 also points out the necessity of such heat exchange. However, this prior art does not disclose a specific structure or the like of the heat exchange system. As this heat exchange system, a method of externally cooling or heating a gas storage tank containing an adsorbent is also conceivable. However, in the heating and cooling through the gas storage tank, there is a problem that efficient heat exchange cannot be performed because the thermal conductivity of the adsorbent such as activated carbon is very small.
【０００５】本発明は、上記従来の課題に鑑みなされた
ものであり、その目的は、効率よく吸着材の加熱、冷却
を行うことができる吸着式ガス貯蔵装置を提供すること
にある。[0005] The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide an adsorption-type gas storage device capable of efficiently heating and cooling an adsorbent.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、車載用の吸着式ガス貯蔵装置であって、
吸着材を収容し、ガスを吸着貯蔵するガス貯蔵槽と、ガ
ス貯蔵槽の外部に設けられた熱交換手段と、ガス貯蔵槽
と熱交換手段との間でガス貯蔵槽に貯蔵されたガスを循
環させる循環手段と、を備えたことを特徴とする。In order to achieve the above object, the present invention is directed to an on-vehicle adsorption type gas storage device,
A gas storage tank that contains the adsorbent and adsorbs and stores the gas, a heat exchange means provided outside the gas storage tank, and a gas stored in the gas storage tank between the gas storage tank and the heat exchange means. And a circulating means for circulating.
【０００７】また、上記吸着式ガス貯蔵装置において、
熱交換手段は、エンジンの冷却排液が導入される熱交換
器と電気ヒータとにより構成され、ガス貯蔵槽の圧力が
所定値より低い場合に、エンジン始動時には電気ヒータ
により循環ガスが加熱され、エンジン始動後冷却排液が
所定温度以上となった後は熱交換器により循環ガスが加
熱されることを特徴とする。In the above-mentioned adsorption type gas storage device,
The heat exchange means is constituted by a heat exchanger into which the engine cooling waste liquid is introduced and an electric heater, and when the pressure of the gas storage tank is lower than a predetermined value, the circulating gas is heated by the electric heater when the engine is started, After the engine is started, the circulating gas is heated by the heat exchanger after the temperature of the cooling waste liquid reaches a predetermined temperature or higher.
【０００８】また、車載用の吸着式ガス貯蔵装置であっ
て、吸着材を収容し、ガスを吸着貯蔵するガス貯蔵槽
と、低温貯蔵されたガスを供給する外部ガス供給装置か
らガス貯蔵槽にガスを受け入れ、貯蔵する際に、吸着材
から発生する吸着熱により温度が上昇したガスを前記ガ
ス貯蔵槽から外部ガス供給装置に回帰させるガス回帰手
段と、を備えることを特徴とする。[0008] Further, the present invention relates to an adsorption type gas storage device for a vehicle, which stores an adsorbent and adsorbs and stores a gas, and an external gas supply device which supplies gas stored at a low temperature to a gas storage tank. When the gas is received and stored, gas recirculation means for returning the gas whose temperature has been raised by the heat of adsorption generated from the adsorbent from the gas storage tank to the external gas supply device is provided.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態（以下
実施形態という）を、図面に従って説明する。Embodiments of the present invention (hereinafter referred to as embodiments) will be described below with reference to the drawings.
【００１０】図１には、本発明に係る吸着式ガス貯蔵装
置の構成のブロック図が示される。図１において、ガス
貯蔵槽１０の内部には、活性炭等の吸着材１２が収容さ
れており、外部ガス供給装置１４から供給された天然ガ
スやメタン等の燃料用のガスは、吸着材１２に吸着され
てガス貯蔵槽１０に吸着貯蔵される。なお、外部ガス供
給装置１４からは、ガス供給通路１６を介してガス貯蔵
槽１０にガスが供給され、その際に圧力調整器１８によ
り所定の圧力まで降圧される。この場合の圧力として
は、例えば３５気圧程度に調整される。ガス貯蔵槽１０
の中に収容された吸着材１２は、入口側のフィルタ２０
と出口側のフィルタ２２とで覆われており、外部ガス供
給装置１４からガスを受け入れる際及びガス貯蔵槽１０
からエンジンにガスを供給する際には、必ずこれらのフ
ィルタ２０、２２をガスが通過する構成となっている。FIG. 1 is a block diagram showing a configuration of an adsorption type gas storage device according to the present invention. In FIG. 1, an adsorbent 12 such as activated carbon is accommodated in a gas storage tank 10, and a fuel gas such as natural gas or methane supplied from an external gas supply device 14 is supplied to the adsorbent 12. The gas is adsorbed and stored in the gas storage tank 10. In addition, the gas is supplied from the external gas supply device 14 to the gas storage tank 10 via the gas supply passage 16, and at this time, the pressure is reduced to a predetermined pressure by the pressure regulator 18. The pressure in this case is adjusted to, for example, about 35 atm. Gas storage tank 10
The adsorbent 12 accommodated in the filter 20
And a filter 22 on the outlet side, when receiving gas from the external gas supply device 14 and in the gas storage tank 10.
When the gas is supplied to the engine from, the gas always passes through these filters 20 and 22.
【００１１】なお、エンジンには、圧力調整器２４によ
り所定の圧力、例えば３気圧程度に調整された後、ガス
供給通路２６を介してガスが供給される。The gas is supplied to the engine through a gas supply passage 26 after being adjusted to a predetermined pressure, for example, about 3 atm by a pressure regulator 24.
【００１２】外部ガス供給装置１４からガスを受け入れ
る際には、吸着材１２にガスが吸着され、吸着熱が発生
する。外部ガス供給装置１４から供給されるガスの温度
は、およそ０℃程度に低温貯蔵してあり、これによって
ある程度冷却がなされるが、これだけでは不十分であ
る。そこで、本実施形態に係るガス貯蔵槽１０において
は、この冷却効果を更に高めるために、吸着材１２から
発生する吸着熱により温度が上昇したガスを、ガス回帰
通路２８を介して外部ガス供給装置１４に回帰させる構
成となっている。ガス貯蔵槽１０から外部ガス供給装置
１４に温度が上昇したガスを回帰させる際には、ガス回
帰通路２８に設けられた弁３０を開とする。これによ
り、吸着材１２の吸着熱により温度が上昇したガスは、
外部ガス供給装置１４に回帰され、外部ガス供給装置１
４から温度の低いガスがガス貯蔵槽１０に供給されるの
で、吸着材１２の吸着熱を効率よくガス貯蔵槽１０の外
部に除去することができ、吸着材１２の冷却を効率よく
行うことができる。従って、ガス貯蔵槽１０へのガスの
吸蔵時にも、吸着材１２の温度上昇を抑制することがで
き、吸着材１２の温度上昇による吸着貯蔵量の低下を抑
制することができる。なお、ガス貯蔵槽１０へのガスの
充填が完了し、吸着材１２の吸着熱の発生がなくなった
時点で弁３０を閉とする。When the gas is received from the external gas supply device 14, the gas is adsorbed by the adsorbent 12 and generates heat of adsorption. The temperature of the gas supplied from the external gas supply device 14 is stored at a low temperature of about 0 ° C., whereby the cooling is performed to some extent, but this is not sufficient. Therefore, in the gas storage tank 10 according to the present embodiment, in order to further enhance the cooling effect, the gas whose temperature has been increased by the heat of adsorption generated from the adsorbent 12 is supplied to the external gas supply device via the gas return passage 28. It is configured to return to 14. When returning the gas whose temperature has risen from the gas storage tank 10 to the external gas supply device 14, the valve 30 provided in the gas return passage 28 is opened. Thus, the gas whose temperature has increased due to the heat of adsorption of the adsorbent 12 is
Returned to the external gas supply device 14, the external gas supply device 1
Since the gas having a low temperature is supplied to the gas storage tank 10 from 4, the heat of adsorption of the adsorbent 12 can be efficiently removed to the outside of the gas storage tank 10, and the adsorbent 12 can be efficiently cooled. it can. Therefore, even when the gas is stored in the gas storage tank 10, a rise in the temperature of the adsorbent 12 can be suppressed, and a decrease in the amount of adsorbed storage due to the rise in the temperature of the adsorbent 12 can be suppressed. The valve 30 is closed when the filling of the gas into the gas storage tank 10 is completed and the heat of adsorption of the adsorbent 12 is stopped.
【００１３】次に、圧力調整器２４で約３気圧に調整さ
れたガスをガス供給通路２６を介してエンジンに供給す
る場合の動作について説明する。この場合には外部ガス
供給装置１４からのガス供給は行われず、またガス回帰
通路２８の弁３０は閉とされる。エンジンにガスを供給
する場合には、ガス貯蔵槽１０の圧力が徐々に低下して
ゆくが、これに加えて吸着材１２からのガスの脱離によ
る吸熱で吸着材１２の温度も低下し、ガス貯蔵槽１０の
圧力の低下が更に加速される。この結果、ガス貯蔵槽１
０内の吸着材１２に吸着されたガスはほとんど脱離でき
なくなり、エンジンへのガス供給が困難となる。そこ
で、この温度低下によるガス貯蔵槽１０の圧力低下を防
ぐために、ガス貯蔵槽１０の外部に設けられたガス強制
循環通路３２に、ガスポンプ３４によりガス貯蔵槽１０
内のガスを強制的に循環させる。ガス強制循環通路３２
には、エンジンの冷却に使用され、約８５℃程度の高温
となった冷却廃液が導入される熱交換器３６が設けられ
ている。従って、ガス貯蔵槽１０内のガスがガスポンプ
３４によりガス強制循環通路３２を強制的に循環される
と、熱交換器３６によりこの循環ガスが加熱され、ガス
貯蔵槽１０内のガス及び吸着材１２の温度を上昇させる
ことができる。これにより、吸着材１２からのガスの脱
離が促進され、ガス貯蔵槽１０内の圧力が上昇するの
で、エンジンへのガス供給を支障なく行うことができ
る。Next, the operation when the gas adjusted to about 3 atm by the pressure regulator 24 is supplied to the engine through the gas supply passage 26 will be described. In this case, the gas is not supplied from the external gas supply device 14, and the valve 30 of the gas return passage 28 is closed. When supplying gas to the engine, the pressure of the gas storage tank 10 gradually decreases, but in addition to this, the temperature of the adsorbent 12 also decreases due to heat absorption due to desorption of the gas from the adsorbent 12, The pressure drop in the gas storage tank 10 is further accelerated. As a result, the gas storage tank 1
The gas adsorbed by the adsorbent 12 within 0 is hardly desorbed, and it becomes difficult to supply the gas to the engine. Therefore, in order to prevent the pressure of the gas storage tank 10 from dropping due to the temperature drop, the gas storage tank 10 is inserted into the gas forced circulation passage 32 provided outside the gas storage tank 10 by the gas pump 34.
The gas inside is forced to circulate. Gas forced circulation passage 32
Is provided with a heat exchanger 36, which is used for cooling the engine and in which a cooling waste liquid having a high temperature of about 85 ° C. is introduced. Therefore, when the gas in the gas storage tank 10 is forcibly circulated through the gas forced circulation passage 32 by the gas pump 34, the circulating gas is heated by the heat exchanger 36, and the gas and the adsorbent 12 in the gas storage tank 10 are heated. Temperature can be increased. Thereby, desorption of the gas from the adsorbent 12 is promoted, and the pressure in the gas storage tank 10 increases, so that gas supply to the engine can be performed without any trouble.
【００１４】なお、このようなガスの強制循環は、ガス
貯蔵槽１０の圧力がエンジンへガスを供給するために必
要な所定圧力を下回ったときのみ実施すればよい。The forced circulation of the gas may be performed only when the pressure in the gas storage tank 10 falls below a predetermined pressure required for supplying gas to the engine.
【００１５】上述したガス強制循環通路３２には、熱交
換器３６による循環ガスの加熱を補うために、電気ヒー
タ３８も設けられている。これは、例えばガス貯蔵槽１
０内のガス残量が少なくなり、その圧力が所定値よりも
下回っている状態でエンジンを始動する際に、エンジン
の冷却廃液が低温であり循環ガスの加熱を行えないよう
な場合でも電気ヒータ３８による加熱を行えるようにす
るためのものである。すなわち、熱交換器３６のみで
は、エンジン始動時等で冷却水が低温の状態にあり、ガ
ス貯蔵槽１０の圧力も低い時にエンジンが始動不能とな
ることがあるが、電気ヒータ３８を設けることによりこ
れを防止することができる。エンジン始動後、エンジン
の冷却廃液の温度が例えば８５℃程度の所定温度以上と
なった場合には、電気ヒータ３８を停止し、熱交換器３
６による加熱に切り換えればよい。The above-mentioned gas forced circulation passage 32 is also provided with an electric heater 38 to supplement the heating of the circulation gas by the heat exchanger 36. This is, for example, the gas storage tank 1
When starting the engine in a state where the gas remaining amount in the fuel tank is low and the pressure is lower than a predetermined value, the electric heater is used even when the cooling liquid of the engine is at a low temperature and the circulating gas cannot be heated. This is to make it possible to perform the heating by 38. That is, with the heat exchanger 36 alone, the cooling water is in a low temperature state at the time of engine start or the like, and the engine may not be able to start when the pressure of the gas storage tank 10 is low, but by providing the electric heater 38 This can be prevented. When the temperature of the engine cooling waste liquid becomes equal to or higher than a predetermined temperature of, for example, about 85 ° C. after the engine is started, the electric heater 38 is stopped and the heat exchanger 3 is turned off.
6 may be switched to heating.
【００１６】ここで、上述したガス強制循環通路３２及
びガスポンプ３４により本発明に係る循環手段が構成さ
れ、熱交換器３６及び電気ヒータ３８により本発明に係
る熱交換手段が構成される。また、ガス回帰通路２８が
本発明に係るガス回帰手段に該当する。Here, the circulating means according to the present invention is constituted by the gas forced circulation passage 32 and the gas pump 34 described above, and the heat exchanging means according to the present invention is constituted by the heat exchanger 36 and the electric heater 38. The gas return passage 28 corresponds to the gas return means according to the present invention.
【００１７】以上のような構成によれば、ガス貯蔵槽１
０内の吸着材１２の温度を下げる場合にも、上げる場合
にも常に内部のガスを動かしながら熱交換することにな
る。これにより、熱交換効率を向上させることができる
ので、ガス貯蔵槽１０内に熱交換を促進するためのフィ
ン等を設ける必要がなくなる。これにより、ガス貯蔵槽
１０の容積をより有効にガスの貯蔵に使用することがで
きる。また、吸着材１２の冷却を効率的に行えるので、
ガス貯蔵槽１０へのガスの充填速度も高くすることがで
き、充填時間の短縮化を図れる。According to the above configuration, the gas storage tank 1
Regardless of whether the temperature of the adsorbent 12 within the temperature range is lowered or raised, heat exchange is performed while always moving the gas inside. Thereby, the heat exchange efficiency can be improved, so that there is no need to provide fins or the like for promoting heat exchange in the gas storage tank 10. Thereby, the volume of the gas storage tank 10 can be used more effectively for storing gas. Also, since the adsorbent 12 can be efficiently cooled,
The filling speed of the gas into the gas storage tank 10 can be increased, and the filling time can be shortened.
【００１８】なお、吸着式ガス貯蔵装置を車載用途に使
用する場合には、限られたスペースに装置を積み込む必
要がある。本発明の吸着式ガス貯蔵装置は、図１に示さ
れるように、ガス回帰通路２８、ガス強制循環通路３
２、ガスポンプ３４、熱交換器３６、電気ヒータ３８等
がガス貯蔵槽１０の外部に設けられている。従って、ガ
ス貯蔵槽１０を小型化できる上、ガス貯蔵槽１０とそれ
以外の装置とを別々に配置でき、配置上の自由度を高め
ることができる。以上より、本発明の吸着式ガス貯蔵装
置は、車載用途に極めて好都合となっている。When the adsorption type gas storage device is used for a vehicle, it is necessary to load the device in a limited space. As shown in FIG. 1, the adsorption type gas storage device of the present invention includes a gas return passage 28, a gas forced circulation passage 3
2. A gas pump 34, a heat exchanger 36, an electric heater 38 and the like are provided outside the gas storage tank 10. Therefore, the gas storage tank 10 can be reduced in size, and the gas storage tank 10 and other devices can be separately arranged, so that the degree of freedom in arrangement can be increased. As described above, the adsorption type gas storage device of the present invention is extremely convenient for use in vehicles.
【００１９】上述した本発明に係る吸着式ガス貯蔵装置
は、例えば水素エンジン用の水素吸蔵合金を内蔵した水
素貯蔵槽にも応用することができる。図２（ａ）、
（ｂ）には、従来の水素貯蔵槽の断面図が示される。図
２（ａ）において、水素貯蔵槽１００の内部には、水素
吸蔵合金１０２が収容されており、この冷却を行うため
の冷却水通路１０４が内蔵されている。図２（ｂ）に
は、この冷却水通路１０４の部分拡大図が示される。冷
却水通路１０４には、熱交換効率を高めるためのフィン
１０６が設けられており、水素吸蔵合金１０２は、実際
にはこのフィン１０６の間に詰め込まれた形となってい
る。このため、水素貯蔵槽１００の内容積のうち、相当
程度が冷却水通路１０４及びフィン１０６で占められて
おり、容積効率が極めて悪くなっている。これは、本従
来例の熱交換方式が、水素貯蔵槽１００内で静止してい
るガスに対して熱交換を行う方式であるためである。The above-described adsorption type gas storage device according to the present invention can be applied to a hydrogen storage tank containing a hydrogen storage alloy for a hydrogen engine, for example. FIG. 2 (a),
(B) is a sectional view of a conventional hydrogen storage tank. In FIG. 2A, a hydrogen storage alloy 102 is accommodated in a hydrogen storage tank 100, and a cooling water passage 104 for cooling the hydrogen storage alloy 102 is built in. FIG. 2B is a partially enlarged view of the cooling water passage 104. Fins 106 for improving heat exchange efficiency are provided in the cooling water passage 104, and the hydrogen storage alloy 102 is actually packed between the fins 106. For this reason, the cooling water passage 104 and the fins 106 occupy a considerable part of the internal volume of the hydrogen storage tank 100, and the volume efficiency is extremely poor. This is because the heat exchange method of the conventional example is a method in which heat exchange is performed on a gas that is stationary in the hydrogen storage tank 100.
【００２０】これに対して、本発明に係る吸着式ガス貯
蔵装置においては、図１に示されるように、冷却及び加
熱のいずれの場合にも常に内部のガスを流動させながら
行うため、熱交換効率が高くなり、図２に示されたよう
なフィン１０６を用いる必要がなくなる。従って、水素
貯蔵槽１００に本発明を応用すれば、その容積効率を大
きく向上させることができる。On the other hand, in the adsorption-type gas storage device according to the present invention, as shown in FIG. Efficiency is increased and the need to use fins 106 as shown in FIG. 2 is eliminated. Therefore, if the present invention is applied to the hydrogen storage tank 100, the volumetric efficiency can be greatly improved.
【００２１】[0021]
【発明の効果】以上説明したように、本発明によれば、
ガス貯蔵槽内のガス及び吸着材を加熱または冷却する場
合に、常にガスを流動させながら行うため、熱交換効率
を高くすることができる。このため、ガス貯蔵槽内に余
分な熱交換設備を設ける必要がなくなり、ガス貯蔵槽の
容積効率を高くすることができるとともに、ガス充填も
短時間で行うことが可能となる。As described above, according to the present invention,
When heating or cooling the gas and the adsorbent in the gas storage tank, the heating and cooling are performed while the gas is constantly flowing, so that the heat exchange efficiency can be increased. Therefore, there is no need to provide an extra heat exchange facility in the gas storage tank, and the volume efficiency of the gas storage tank can be increased, and gas filling can be performed in a short time.
【００２２】また、ガス及び吸着材の冷却及び加熱用の
設備は、ガス貯蔵槽の外部に設けることができるので、
ガス貯蔵槽及び冷却、加熱設備の配置の自由度が高ま
り、車載用として使用するために極めて好都合となる。Further, the equipment for cooling and heating the gas and the adsorbent can be provided outside the gas storage tank.
The degree of freedom in the arrangement of the gas storage tank and the cooling and heating equipment is increased, which is extremely convenient for use in vehicles.
【図１】 本発明に係る吸着式ガス貯蔵装置の構成のブ
ロック図である。FIG. 1 is a block diagram of a configuration of an adsorption type gas storage device according to the present invention.
【図２】 従来における水素貯蔵槽の構成を示す断面図
である。FIG. 2 is a cross-sectional view showing a configuration of a conventional hydrogen storage tank.
１０ ガス貯蔵槽、１２ 吸着材、１４ 外部ガス供給
装置、１６，２６ ガス供給通路、１８，２４ 圧力調
整器、２０，２２ フィルタ、２８ ガス回帰通路、３
０ 弁、３２ ガス強制循環通路、３４ ガスポンプ、
３６ 熱交換器、３８ 電気ヒータ、１００ 水素貯蔵
槽、１０２ 水素吸蔵合金、１０４ 冷却水通路、１０
６ フィン。Reference Signs List 10 gas storage tank, 12 adsorbent, 14 external gas supply device, 16, 26 gas supply passage, 18, 24 pressure regulator, 20, 22, filter, 28 gas return passage, 3
0 valve, 32 gas forced circulation passage, 34 gas pump,
36 heat exchanger, 38 electric heater, 100 hydrogen storage tank, 102 hydrogen storage alloy, 104 cooling water passage, 10
6 fins.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松浦 幸三 愛知県豊田市トヨタ町１番地 トヨタ自動 車株式会社内 Ｆターム(参考） 3E072 AA03 DA05 DB03 EA10 GA30 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kozo Matsuura 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation F-term (reference) 3E072 AA03 DA05 DB03 EA10 GA30
Claims (3)
槽に貯蔵されたガスを循環させる循環手段と、を備えた
ことを特徴とする吸着式ガス貯蔵装置。1. An adsorption type gas storage device for a vehicle, comprising: a gas storage tank that stores an adsorbent and adsorbs and stores a gas; a heat exchange unit provided outside the gas storage tank; A circulating means for circulating the gas stored in the gas storage tank between the storage tank and the heat exchange means.
いて、前記熱交換手段は、エンジンの冷却排液が導入さ
れる熱交換器と電気ヒータとにより構成され、前記ガス
貯蔵槽の圧力が所定値より低い場合に、エンジン始動時
には電気ヒータにより循環ガスが加熱され、エンジン始
動後前記冷却排液が所定温度以上となった後は熱交換器
により循環ガスが加熱されることを特徴とする吸着式ガ
ス貯蔵装置。2. The adsorption type gas storage device according to claim 1, wherein the heat exchange means is constituted by a heat exchanger into which engine cooling wastewater is introduced and an electric heater, and the pressure of the gas storage tank is reduced. When the temperature is lower than the predetermined value, the circulating gas is heated by the electric heater at the time of starting the engine, and the circulating gas is heated by the heat exchanger after the cooling waste liquid reaches a predetermined temperature or more after the engine is started. Adsorption type gas storage device.
記ガス貯蔵槽にガスを受け入れ、貯蔵する際に、吸着材
から発生する吸着熱により温度が上昇したガスを前記ガ
ス貯蔵槽から前記外部ガス供給装置に回帰させるガス回
帰手段と、を備えることを特徴とする吸着式ガス貯蔵装
置。3. An adsorption type gas storage device for use in a vehicle, comprising: a gas storage tank for storing an adsorbent and adsorbing and storing a gas; and an external gas supply device for supplying a low-temperature stored gas. A gas recirculation means for returning a gas whose temperature has increased due to heat of adsorption generated from an adsorbent from the gas storage tank to the external gas supply device when receiving and storing the gas. Gas storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10258452A JP2000088195A (en) | 1998-09-11 | 1998-09-11 | Adsorption type gas storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10258452A JP2000088195A (en) | 1998-09-11 | 1998-09-11 | Adsorption type gas storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000088195A true JP2000088195A (en) | 2000-03-31 |
Family
ID=17320418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10258452A Withdrawn JP2000088195A (en) | 1998-09-11 | 1998-09-11 | Adsorption type gas storage device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000088195A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006207785A (en) * | 2005-01-24 | 2006-08-10 | Atsushi Tominaga | Hydrogen filling apparatus |
| JP2009068627A (en) * | 2007-09-14 | 2009-04-02 | Aim Tech:Kk | LPG recovery device and LPG regeneration device |
| CN104075110A (en) * | 2013-03-28 | 2014-10-01 | 通用汽车环球科技运作有限责任公司 | Method of increasing storage capacity of natural gas tank |
-
1998
- 1998-09-11 JP JP10258452A patent/JP2000088195A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006207785A (en) * | 2005-01-24 | 2006-08-10 | Atsushi Tominaga | Hydrogen filling apparatus |
| JP2009068627A (en) * | 2007-09-14 | 2009-04-02 | Aim Tech:Kk | LPG recovery device and LPG regeneration device |
| CN104075110A (en) * | 2013-03-28 | 2014-10-01 | 通用汽车环球科技运作有限责任公司 | Method of increasing storage capacity of natural gas tank |
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| Date | Code | Title | Description |
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| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20040122 |