JP2984812B2 - Method and apparatus for filling compressed fuel gas into cylinder - Google Patents
Method and apparatus for filling compressed fuel gas into cylinderInfo
- Publication number
- JP2984812B2 JP2984812B2 JP6270683A JP27068394A JP2984812B2 JP 2984812 B2 JP2984812 B2 JP 2984812B2 JP 6270683 A JP6270683 A JP 6270683A JP 27068394 A JP27068394 A JP 27068394A JP 2984812 B2 JP2984812 B2 JP 2984812B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- filling
- fuel gas
- gas
- compressed
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、天然ガス等の燃料ガス
を圧縮して自動車の車載ボンベ等に供給する圧縮燃料ガ
ス充填する方法と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 method and apparatus for compressing a fuel gas such as natural gas and supplying the compressed fuel gas to a vehicle-mounted cylinder or the like.
【０００２】[0002]
【従来の技術】従来、自動車用燃料として、ガソリンや
軽油のほかプロパン、ブタン等を主成分とする液化燃料
ガスが用いられてきた。更に炭酸ガスの排出量の少ない
メタン等を主成分とする天然ガス等の燃料ガスを自動車
燃料として用いることが試みられている。メタン等の燃
料ガスは常温では液化せず、これを自動車の燃料タンク
に充填する際には、容量を小さくするために、高圧の圧
縮ガスとして充填する必要がある。圧縮燃料ガスを自動
車に供給するには、高圧の蓄ガス器に貯留した圧縮燃料
ガスをその圧力差を利用して車載ボンベに充填するので
あるが、蓄ガス器内の圧力が低下するにつれて、車載ボ
ンベへの充填速度が遅くなる。しかし燃料ガスステーシ
ョンでは、短時間で能率よく充填する必要がある。2. Description of the Related Art Conventionally, liquefied fuel gas mainly composed of propane, butane, etc. in addition to gasoline and light oil has been used as automobile fuel. Further, attempts have been made to use a fuel gas such as natural gas mainly composed of methane or the like, which emits a small amount of carbon dioxide, as a vehicle fuel. Fuel gas such as methane does not liquefy at room temperature, and when filling it into a fuel tank of an automobile, it is necessary to fill it as high-pressure compressed gas in order to reduce the capacity. In order to supply the compressed fuel gas to the vehicle, the compressed fuel gas stored in the high-pressure gas storage is filled into the vehicle cylinder using the pressure difference, but as the pressure in the gas storage decreases, The filling speed of the on-board cylinder decreases. However, in a fuel gas station, it is necessary to efficiently fill the fuel in a short time.
【０００３】そのため従来は図１に示すような圧縮燃料
ガス充填装置により充填が行われている。この装置では
高圧蓄ガス器１と可変圧蓄ガス器２を備え、ガス貯留タ
ンクまたはガス導管からの燃料ガスを圧縮機ユニット３
で高圧に圧縮し、これを開閉弁４及び開閉弁５を経て、
高圧蓄ガス器１及び可変圧蓄ガス器２のそれぞれに高圧
で貯留する。自動車６の車載ボンベに充填する際には、
先ず開閉弁７を開き、可変圧蓄ガス器２よりディスペン
サーユニット８を経て車載ボンベに充填する。ディスペ
ンサーユニット８には質量流量計９、開閉弁１０及び圧
力変換器１３を備える。可変圧蓄ガス器２及び高圧蓄ガ
ス器１の出口にはそれぞれ圧力変換器１１及び１２を備
え、圧力変換器１３と可変圧蓄ガス器２出口の圧力変換
器１１の検出圧力の差が一定の圧力差以下に達すると、
充填速度が低下するので、その圧力差を検知して、一定
以下になると、開閉弁７を閉じ開閉弁１４を開き、高圧
蓄ガス器１から更に高圧の燃料ガスを供給する。[0003] For this reason, conventionally, filling is performed by a compressed fuel gas filling apparatus as shown in FIG. This apparatus includes a high-pressure gas storage device 1 and a variable-pressure gas storage device 2, and supplies fuel gas from a gas storage tank or a gas conduit to a compressor unit 3.
Is compressed to a high pressure through the on-off valve 4 and the on-off valve 5,
High-pressure gas is stored in each of the high-pressure gas storage 1 and the variable-pressure gas storage 2. When filling the vehicle cylinder of the car 6,
First, the on-off valve 7 is opened, and the vehicle-mounted cylinder is charged from the variable pressure gas storage device 2 through the dispenser unit 8. The dispenser unit 8 includes a mass flow meter 9, an on-off valve 10, and a pressure converter 13. At the outlets of the variable pressure gas accumulator 2 and the high pressure gas accumulator 1, pressure transducers 11 and 12 are provided, respectively, so that the difference between the detected pressures of the pressure transducer 13 and the pressure transducer 11 at the outlet of the variable pressure gas accumulator 2 is constant. When the pressure difference reaches
Since the charging speed decreases, the pressure difference is detected, and when the pressure difference falls below a certain level, the on-off valve 7 is closed and the on-off valve 14 is opened, and the high-pressure gas storage device 1 supplies a higher-pressure fuel gas.
【０００４】このように車載ボンベ内の圧力が比較的低
圧の間は可変圧蓄ガス器２より供給し、充填が進んで車
載ボンベが比較的高圧になり、充填速度が低下すると高
圧蓄ガス器１に切り換えることにより、全体としての充
填時間を短縮し、また圧縮機ユニット３による燃料ガス
の圧縮動力を節減しようとしている。As described above, while the pressure in the on-board cylinder is relatively low, the gas is supplied from the variable pressure gas storage unit 2 and the filling is advanced and the on-board cylinder becomes relatively high pressure. By switching to 1, the overall charging time is shortened, and the compression power of the fuel gas by the compressor unit 3 is reduced.
【０００５】[0005]
【発明が解決しようとする課題】上記従来の圧縮燃料ガ
ス充填装置では、蓄ガス器とディスペンサーユニット８
の配管内の圧力差により、可変圧蓄ガス器２と高圧蓄ガ
ス器１を切り換えているが、この圧力差と充填の質量流
量とは比例せず、圧力差が同じであっても、蓄ガス器の
圧力が低いときは充填の質量流量は低下し、充填時間が
長くなる。又図１に示すような従来の圧縮燃料ガス充填
装置は、高価な圧力変換器と開閉弁を多数使用する複雑
な装置であるため、設備費用が嵩むという問題がある。In the conventional compressed fuel gas filling apparatus described above, the gas storage and the dispenser unit 8 are used.
Is switched between the variable pressure gas accumulator 2 and the high pressure gas accumulator 1 according to the pressure difference in the piping. However, this pressure difference is not proportional to the mass flow rate of the filling, and even if the pressure difference is the same, When the gas pressure is low, the mass flow of the filling decreases and the filling time increases. In addition, the conventional compressed fuel gas filling apparatus as shown in FIG. 1 is a complicated apparatus using a number of expensive pressure transducers and on-off valves, and thus has a problem that the equipment cost increases.
【０００６】従って本発明は、簡単な設備で、車載ボン
ベ等への燃料ガス充填時間を短縮し、燃料ガスの圧縮動
力を節減することができる車載ボンベ等への圧縮燃料ガ
ス充填方法及び装置を提供することを目的とする。Accordingly, the present invention provides a method and an apparatus for filling compressed fuel gas into a vehicle-mounted cylinder or the like which can shorten the time required to fill fuel gas into a vehicle-mounted cylinder or the like and save fuel gas compression power with simple equipment. The purpose is to provide.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成すべく、
本発明者は鋭意研究を重ねた結果、蓄ガス器とディスペ
ンサーユニット内の圧力差を検知して、圧縮燃料ガスを
供給する蓄ガス器を切替えるのではなく、ディスペンサ
ーユニット内の燃料ガスの質量流量を質量流量計により
検出して、その質量流量が一定値以下になると蓄ガス器
を切り換えることにより、装置を極めて簡単化すること
ができ、充填時間も短縮することができることを見出
し、本発明を完成するに至った。In order to achieve the above object,
As a result of repeated studies, the present inventor has found that the pressure difference between the gas storage device and the dispenser unit is not detected, and instead of switching the gas storage device that supplies the compressed fuel gas, the mass flow rate of the fuel gas in the dispenser unit is determined. Is detected by a mass flow meter, and when the mass flow rate becomes equal to or less than a certain value, the gas storage device is switched, whereby the apparatus can be extremely simplified and the filling time can be shortened. It was completed.
【０００８】即ち、本発明は燃料ガスを圧縮する圧縮機
ユニット、該圧縮機ユニットで圧縮した圧縮燃料ガスを
貯留する可変圧蓄ガス器及び高圧蓄ガス器、車載ボンベ
等への圧縮燃料ガスの充填を制御するディスペンサーユ
ニットをそれぞれ開閉弁又は逆止弁を備えた配管で接続
した充填装置により、圧縮機ユニットで圧縮した燃料ガ
スを車載ボンベ等に該ディスペンサーユニットを経て充
填する方法において、先ず該圧縮機ユニットにより該高
圧蓄ガス器及び該可変圧蓄ガス器に圧縮燃料ガスを所定
圧で充填しておき、次に該可変圧蓄ガス器より該ディス
ペンサーユニットを経て車載ボンベ等に圧縮燃料ガスを
充填すると共に、該圧縮機ユニットを運転して該圧縮機
ユニットの吐出ガスと可変圧蓄ガス器からのガスを合流
して充填し、該充填速度が所定の速度以下になったと
き、流路を切り換えて圧縮機ユニットの吐出圧縮燃料ガ
スと高圧蓄ガス器からの圧縮燃料ガスを合流して車載ボ
ンベ等に充填し、その充填速度が所定速度以下に達する
と、流路を切り換えて圧縮機ユニットの吐出圧縮燃料ガ
スのみを流して充填すると共に、上記一連の車載ボンベ
等への充填操作の途中で車載ボンベ等の充填圧が所定の
充填圧に達し、車載ボンベ等への圧縮燃料ガスの充填が
完了したときは、その時点で直ちに車載ボンベ等への充
填を停止することを特徴とするボンベへの圧縮燃料ガス
充填方法を要旨とする。That is, the present invention provides a compressor unit for compressing a fuel gas, a variable-pressure gas storage device and a high-pressure gas storage device for storing the compressed fuel gas compressed by the compressor unit, and a method for supplying the compressed fuel gas to a vehicle-mounted cylinder. In a method of filling a fuel gas compressed by a compressor unit into a vehicle-mounted cylinder or the like via the dispenser unit by a filling device in which a dispenser unit for controlling filling is connected by a pipe having an on-off valve or a check valve, respectively, The compressor unit fills the high-pressure gas storage device and the variable-pressure gas storage device with a compressed fuel gas at a predetermined pressure, and then sends the compressed fuel gas from the variable-pressure gas storage device to the on-board cylinder via the dispenser unit. The compressor unit is operated and the gas discharged from the compressor unit and the gas from the variable pressure accumulator are merged and filled. When the speed becomes equal to or lower than a predetermined speed, the flow path is switched, and the compressed fuel gas discharged from the compressor unit and the compressed fuel gas from the high-pressure gas storage unit are merged and charged into a vehicle cylinder or the like. When the speed becomes lower than the speed, the flow path is switched and only the compressed fuel gas discharged from the compressor unit is flowed to fill the tank. When the pressure is reached and the filling of the compressed fuel gas into the in-vehicle cylinder or the like is completed, the filling of the compressed gas into the in-vehicle cylinder or the like is stopped immediately at that time. .
【０００９】又他の本発明は燃料ガスを圧縮する圧縮機
ユニット、該圧縮機ユニットで圧縮した圧縮燃料ガスを
貯留する可変圧蓄ガス器及び高圧蓄ガス器、車載ボンベ
等への圧縮燃料ガスの充填を制御するディスペンサーユ
ニットをそれぞれ開閉弁又は逆止弁を備えた配管で接続
して備え有する圧縮燃料ガス充填装置において、該圧縮
機ユニットの吐出管を逆止弁、第１開閉弁を経て可変圧
蓄ガス器に配管により繋ぎ、一方該高圧蓄ガス器を第２
開閉弁を経てディスペンサーユニットに繋ぎ、該逆止弁
から該第１開閉弁に到る配管の途中から分岐して、別の
逆止弁を経て該第２開閉弁からディスペンサーユニット
に到る配管の途中に合流させ、更に該可変圧蓄ガス器か
ら該高圧蓄ガス器に逆止弁を経て繋ぎ、該ディスペンサ
ーユニットには充填速度を検出する質量流量計を備え、
該質量流量計で検出された質量流量が所定値以下に達し
た時、各開閉弁の開閉制御及び該圧縮機ユニットの運転
制御をする制御機構を備えたことを特徴とするボンベへ
の圧縮燃料ガス充填装置を要旨とする。Another aspect of the present invention is a compressor unit for compressing a fuel gas, a variable-pressure gas storage device and a high-pressure gas storage device for storing the compressed fuel gas compressed by the compressor unit, and a compressed fuel gas for a vehicle-mounted cylinder. In a compressed fuel gas filling apparatus having a dispenser unit for controlling the filling of a compressor connected and connected by a pipe provided with an open / close valve or a check valve, the discharge pipe of the compressor unit is connected via a check valve and a first open / close valve. A pipe is connected to the variable pressure gas accumulator, while the high pressure gas accumulator is connected to the second
It connects to the dispenser unit via the on-off valve, branches off from the middle of the pipe from the check valve to the first on-off valve, and connects to the pipe from the second on-off valve to the dispenser unit via another check valve. Merged on the way, further connected from the variable pressure gas accumulator to the high pressure gas accumulator via a check valve, the dispenser unit is provided with a mass flow meter for detecting the filling speed,
When the mass flow rate detected by the mass flow meter has reached a predetermined value or less, a control mechanism for controlling the opening and closing of each on-off valve and controlling the operation of the compressor unit is provided. The gist is a gas filling device.
【００１０】[0010]
【実施例】次に本発明のボンベへの圧縮燃料ガス充填方
法及び蓄ガス器へのガス充填方法を図面により詳細に説
明する。図２は本発明の車載ボンベへの圧縮燃料ガス充
填装置の一例の系統図である。３はガス貯留タンク（図
示せず）又はガス導管２９からの燃料ガスを高圧に圧縮
する圧縮機ユニットであり、圧縮機ユニットの吐出管は
逆止弁１４、配管１５、第１開閉弁１６、配管１７を経
て可変圧蓄ガス器２に繋がる。更に配管１５の途中から
分岐して逆止弁１８、第２開閉弁１９、配管２０を経て
高圧蓄ガス器１に接続される。配管１７の途中から分岐
した配管２１は逆止弁２２を経て配管２０に繋がる。逆
止弁１８から第２開閉弁１９に到る配管２３の途中から
分岐してディスペンサーユニット８に繋がる。ディスペ
ンサーユニット８内で配管は質量流量計９及び開閉弁２
４を経て、自動車６の充填口に接続するためのカプラー
２５に繋がる。２６は質量流量計９で検出し、電気信号
として出力される質量流量信号を受けて、所定値と大小
を比較して、第１開閉弁１６及び第２開閉弁１９の開閉
を制御する制御信号を出力する制御器である。可変圧蓄
ガス器２の出入口の配管１７には圧力変換器１１が接続
され、高圧蓄ガス器１の出入口の配管２０には圧力スイ
ッチ２７が接続されている。２８はディスペンサー圧力
検出器であり、圧力スイッチ又は圧力変換器よりなる。
その圧力が一定圧に達すれば、車載ボンベへの充填が完
了したことを示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a method for filling a cylinder with compressed fuel gas and a method for filling a gas storage device according to the present invention will be described in detail with reference to the drawings. FIG. 2 is a system diagram of an example of a device for filling compressed fuel gas into a vehicle-mounted cylinder according to the present invention. Reference numeral 3 denotes a compressor unit for compressing a fuel gas from a gas storage tank (not shown) or a gas conduit 29 to a high pressure, and a discharge pipe of the compressor unit includes a check valve 14, a pipe 15, a first on-off valve 16, The pipe 17 is connected to the variable pressure gas storage 2. Further, it branches from the middle of the pipe 15 and is connected to the high-pressure gas storage device 1 via the check valve 18, the second on-off valve 19, and the pipe 20. The pipe 21 branched from the middle of the pipe 17 is connected to the pipe 20 via the check valve 22. A branch from the middle of the pipe 23 from the check valve 18 to the second on-off valve 19 is connected to the dispenser unit 8. In the dispenser unit 8, the piping is a mass flow meter 9 and an on-off valve 2.
Via 4, it is connected to a coupler 25 for connection to the filling port of the motor vehicle 6. 26 is a control signal for controlling the opening and closing of the first on-off valve 16 and the second on-off valve 19 by receiving the mass flow rate signal detected by the mass flow meter 9 and output as an electric signal, comparing the magnitude with a predetermined value, Is a controller that outputs. The pressure converter 11 is connected to the piping 17 at the entrance and exit of the variable pressure gas storage device 2, and the pressure switch 27 is connected to the piping 20 at the entrance and exit of the high pressure gas storage device 1. Reference numeral 28 denotes a dispenser pressure detector, which comprises a pressure switch or a pressure transducer.
When the pressure reaches a certain pressure, it indicates that the filling of the vehicle-mounted cylinder has been completed.
【００１１】本発明の装置で使用される各開閉弁はその
形式は特に制限はないが、電磁、電動又はガス圧等によ
り遠隔操作によって開閉しうるものであって、圧縮燃料
ガスの高圧下で外部へのガスの漏洩がなく確実に開閉で
きるものであればよい。Although the type of each on-off valve used in the apparatus of the present invention is not particularly limited, it can be opened and closed remotely by electromagnetic, electric or gas pressure or the like. Any material can be used as long as it can be reliably opened and closed without leakage of gas to the outside.
【００１２】[0012]
【作用】図２に示す本発明のボンベへの圧縮燃料ガス充
填装置を用いて圧縮燃料ガスを自動車６の車載ボンベに
充填する方法を説明する。図２の高圧蓄ガス器１及び可
変圧蓄ガス器２には、後述の方法により圧縮機ユニット
３より予め高圧の燃料ガスが充分充填されている。高圧
蓄ガス器１及び可変圧蓄ガス器２への充填圧はとくに制
限はないが、例えば、車載ボンベに２００kgf/cm2 で充
填する場合には、各蓄ガス器には約２５０kgf/cm2 程度
まで充填する。The method for filling compressed gas in a cylinder of the automobile 6 using the apparatus for filling compressed gas in cylinders of the present invention shown in FIG. 2 will be described. The high-pressure gas storage device 1 and the variable-pressure gas storage device 2 in FIG. 2 are sufficiently filled with high-pressure fuel gas from the compressor unit 3 in advance by a method described later. The filling pressure for the high-pressure gas storage device 1 and the variable-pressure gas storage device 2 is not particularly limited. For example, when a vehicle-mounted cylinder is filled with 200 kgf / cm 2 , each gas storage device has approximately 250 kgf / cm 2. Fill to the extent.
【００１３】〔操作１ａ〕最初図２に示すように各開閉
弁１６、１９、２４はすべて閉じられた状態にある。
（以下の図面において、各開閉弁は閉状態を黒で、開状
態を白で示す。）先ずカプラー２５を自動車６の燃料充
填口に接続し、開閉弁２４及び第１開閉弁１６を開く
（図３）。可変圧蓄ガス器２より第１開閉弁１６、逆止
弁１８、ディスペンサーユニット８の質量流量計９、開
閉弁２４を経て圧縮燃料ガスが車載ボンベに充填され
る。[Operation 1a] Initially, as shown in FIG. 2, all of the on-off valves 16, 19 and 24 are in a closed state.
(In the following drawings, each on-off valve is shown in black when closed and open when white.) First, the coupler 25 is connected to the fuel filling port of the automobile 6, and the on-off valve 24 and the first on-off valve 16 are opened ( (Fig. 3). The compressed fuel gas is charged into the vehicle cylinder from the variable pressure gas storage 2 through the first on-off valve 16, the check valve 18, the mass flow meter 9 of the dispenser unit 8, and the on-off valve 24.
【００１４】〔操作１ｂ〕圧力変換器１１の出力が設定
下限値に達すると、圧縮機ユニット３が起動して、圧縮
機ユニット３からの圧縮燃料ガスと可変圧蓄ガス器２か
らの圧縮燃料ガスが合流して、ディスペンサーユニット
８を経て自動車６の車載ボンベに充填される。[Operation 1b] When the output of the pressure converter 11 reaches the set lower limit, the compressor unit 3 is started, and the compressed fuel gas from the compressor unit 3 and the compressed fuel gas from the variable pressure gas storage 2 are compressed. The gas merges and is filled into a vehicle cylinder of the automobile 6 via the dispenser unit 8.
【００１５】〔操作２〕質量流量計９で検出した質量流
量が所定値以下に達したことを制御器２６が検知する
と、制御器２６の出力信号により、第２開閉弁１９を開
き、第１開閉弁１６を閉じる（図４）。高圧蓄ガス器１
から高圧の圧縮燃料ガスは第２開閉弁１９を経て圧縮機
ユニット３からの圧縮燃料ガスに合流し、ディスペンサ
ーユニット８を経て自動車６の車載ボンベに再び速い充
填速度で充填される。[Operation 2] When the controller 26 detects that the mass flow rate detected by the mass flow meter 9 has reached a predetermined value or less, the second on-off valve 19 is opened by the output signal of the controller 26, and the first on-off valve 19 is opened. The on-off valve 16 is closed (FIG. 4). High pressure gas storage 1
The high-pressure compressed fuel gas merges with the compressed fuel gas from the compressor unit 3 through the second opening / closing valve 19, and is again charged into the vehicle-mounted cylinder of the automobile 6 through the dispenser unit 8 at a high filling speed.
【００１６】〔操作３〕更に質量流量計９の流量が設定
値以下に達すると、第２開閉弁１９を閉じ（図５）、圧
縮機ユニット３からの吐出ガスのみをディスペンサーユ
ニット８に送る。[Operation 3] When the flow rate of the mass flow meter 9 further falls below the set value, the second on-off valve 19 is closed (FIG. 5), and only the gas discharged from the compressor unit 3 is sent to the dispenser unit 8.
【００１７】〔操作４ａ〕ディスペンサーユニット８の
吐出圧が所定圧に達し、充填が完了すると開閉弁２４を
閉じ、第２開閉弁１９を開き、カプラー２５を切離す
（図６）。すると圧縮機ユニット３から吐出する圧縮燃
料ガスは逆止弁１８及び第２開閉弁１９を経て高圧蓄ガ
ス器１に充填される。[Operation 4a] When the discharge pressure of the dispenser unit 8 reaches a predetermined pressure and filling is completed, the on-off valve 24 is closed, the second on-off valve 19 is opened, and the coupler 25 is disconnected (FIG. 6). Then, the compressed fuel gas discharged from the compressor unit 3 is charged into the high-pressure gas storage device 1 via the check valve 18 and the second on-off valve 19.
【００１８】〔操作４ｂ〕高圧蓄ガス器１の圧力が所定
圧に達し、圧力スイッチ２７が作動すると、その出力信
号により、第２開閉弁１９を閉じ、第１開閉弁１６を開
く（図７）。すると圧縮機ユニット３から吐出する圧縮
燃料ガスは第１開閉弁１６を経て可変圧蓄ガス器２に充
填される。[Operation 4b] When the pressure of the high-pressure gas storage device 1 reaches a predetermined pressure and the pressure switch 27 is operated, the second on-off valve 19 is closed and the first on-off valve 16 is opened by the output signal thereof (FIG. 7). ). Then, the compressed fuel gas discharged from the compressor unit 3 is charged into the variable pressure gas storage device 2 via the first on-off valve 16.
【００１９】〔操作５〕圧力変換器１１で検知する圧力
が所定の充填圧に達すると、圧縮機ユニット３の運転を
停止し、第１開閉弁１６を閉じ、最初の図２の状態に戻
る。以上の充填制御方式をまとめると、図９に示すフロ
ーチャートとなる。[Operation 5] When the pressure detected by the pressure converter 11 reaches a predetermined filling pressure, the operation of the compressor unit 3 is stopped, the first on-off valve 16 is closed, and the initial state shown in FIG. 2 is returned. . The above charging control method is summarized as a flowchart shown in FIG.
【００２０】配管２０に接続される圧力スイッチ２７は
必ずしも必要不可欠ではない。圧力スイッチ２７を設け
ない場合には、上記〔操作４ａ〕、〔操作４ｂ〕を次の
ように変更する必要がある。The pressure switch 27 connected to the pipe 20 is not always essential. When the pressure switch 27 is not provided, the above [Operation 4a] and [Operation 4b] need to be changed as follows.
【００２１】〔操作４ａ−２〕ディスペンサーユニット
８の吐出圧が所定圧に達し、充填が完了すると開閉弁２
４を閉じ、第１開閉弁１６を開き、カプラー２５を切離
す（図８）。すると圧縮機ユニット３から吐出する圧縮
燃料ガスは第１開閉弁１６を経て可変圧蓄ガス器２に充
填される。[Operation 4a-2] When the discharge pressure of the dispenser unit 8 reaches a predetermined pressure and the filling is completed, the on-off valve 2
4 is closed, the first on-off valve 16 is opened, and the coupler 25 is disconnected (FIG. 8). Then, the compressed fuel gas discharged from the compressor unit 3 is charged into the variable pressure gas storage device 2 via the first on-off valve 16.
【００２２】〔操作４ｂ−２〕可変圧蓄ガス器２の圧力
が高圧蓄ガス器１の圧力よりも高くなると、自動的に逆
止弁２２が開き、可変圧蓄ガス器２と高圧蓄ガス器１の
両方に同時に充填される。[Operation 4b-2] When the pressure of the variable pressure gas accumulator 2 becomes higher than the pressure of the high pressure gas accumulator 1, the check valve 22 is automatically opened, and the variable pressure gas accumulator 2 and the high pressure gas Both vessels 1 are filled at the same time.
【００２３】しかし上記圧力スイッチ２７を設けた〔操
作４ａ〕及び〔操作４ｂ〕の方が好ましい。なぜなら、
〔操作４ａ〕及び〔操作４ｂ〕のごとく高圧蓄ガス器１
に優先的に圧縮燃料ガスを充填することにより、次の自
動車への充填を素早く行うことができる。即ち先ず高圧
蓄ガス器１に充填を完了しておけば、可変圧蓄ガス器２
への充填が完了する前でも、必要があれば次の自動車へ
の圧縮燃料ガスの充填を開始することができる。しかし
逆の順序で高圧蓄ガス器１より可変圧蓄ガス器２の方に
先に充填すれば、高圧蓄ガス器１への充填が完了するま
で、次の自動車６の車載ボンベへの充填開始を待つ必要
がある。However, [Operation 4a] and [Operation 4b] provided with the pressure switch 27 are more preferable. Because
[Operation 4a] and [Operation 4b] as in [High-pressure gas storage 1]
, The next vehicle can be charged quickly. That is, if the filling of the high-pressure gas storage 1 is completed first, the variable-pressure gas storage 2
Even before the filling of the vehicle is completed, if necessary, the filling of the next vehicle with the compressed fuel gas can be started. However, if charging is performed in the reverse order from the high-pressure gas storage device 1 to the variable-pressure gas storage device 2, the filling of the next vehicle 6 into the vehicle-mounted cylinder is started until the high-pressure gas storage device 1 is completely charged. Need to wait.
【００２４】図２において、圧力変換器１１と圧力スイ
ッチ２７の位置を入れ替えてもよいし、両者とも圧力ス
イッチを用いてもよい。その場合でも装置の上記操作方
法は本質的には変わりがない。ただ圧力変換器１１の代
わりに圧力スイッチを用いる場合は、制御装置の側で開
閉弁の切替えの設定圧力を変更することができず、最初
に圧力スイッチで作動圧を設定し、常にその圧力で開閉
弁等の切替えを行うことになる。In FIG. 2, the positions of the pressure converter 11 and the pressure switch 27 may be interchanged, or both may be pressure switches. Even in such a case, the above-described operation method of the apparatus is essentially unchanged. However, when a pressure switch is used instead of the pressure transducer 11, the set pressure for switching the on-off valve cannot be changed on the control device side, and the operating pressure is first set by the pressure switch, and the pressure is always set at that pressure. Switching of the on-off valve and the like is performed.
【００２５】上記の操作方法の説明は、全て車載ボンベ
が略空の状態で充填を開始し、可変圧蓄ガス器２及び高
圧蓄ガス器１の圧力が所定圧以下になるまで、車載ボン
ベへの充填が完了せず、〔操作３〕で最後に圧縮機ユニ
ット３から直接充填することにより、初めて車載ボンベ
への充填が完了する場合について説明したが、実際には
自動車６の車載ボンベにまだ圧縮燃料ガスが残っている
状態で充填を開始したり、車載ボンベの容量が小さい場
合には、上記〔操作３〕に到達する前の段階で充填が完
了する場合も勿論ある。The description of the above-mentioned operation method is as follows. The filling operation is started when the vehicle-mounted cylinder is almost empty and the pressure in the variable-pressure gas storage device 2 and the high-pressure storage device 1 is reduced to a predetermined pressure or less. In this case, the filling of the vehicle-mounted cylinder is completed for the first time by directly filling from the compressor unit 3 in [Operation 3]. When the filling is started in a state where the compressed fuel gas remains, or when the capacity of the on-vehicle cylinder is small, the filling may be completed at a stage before reaching the above [Operation 3].
【００２６】上記充填操作の途中で自動車６の車載ボン
ベへの充填が完了した場合には、直ちに開閉弁２４を閉
じ、カプラー２５を切り離す。そしてその充填完了がど
の操作の途中であるかによって、次の操作は当然異な
る。例えば〔操作１ｂ〕の途中で車載ボンベへの充填が
完了した場合には、高圧蓄ガス器１はまだ満タン状態に
あるから、そのまま〔操作４ｂ〕に移行して、圧縮機ユ
ニット３の吐出ガスを可変圧蓄ガス器２に充填する。If the filling of the vehicle cylinder of the automobile 6 is completed during the filling operation, the on-off valve 24 is closed immediately and the coupler 25 is disconnected. The next operation naturally differs depending on which operation the filling is completed. For example, when the filling of the on-board cylinder is completed during [Operation 1b], the high pressure gas storage device 1 is still full, so the operation proceeds to [Operation 4b] and the discharge of the compressor unit 3 is started. The gas is charged into the variable pressure gas accumulator 2.
【００２７】又〔操作２〕の途中で自動車６の車載ボン
ベへの充填が完了した場合には、高圧蓄ガス器１の圧力
は或る程度低下しているから、開閉弁２４を閉じ、カプ
ラー２５を切り離し、そのまま〔操作４ａ〕に移行し
て、高圧蓄ガス器１への充填を開始し、以後は上記〔操
作４ａ〕以後の順序で操作を続行する。When the filling of the cylinder of the automobile 6 is completed during the [operation 2], since the pressure of the high-pressure gas storage device 1 has decreased to some extent, the on-off valve 24 is closed and the coupler is closed. 25, the operation is shifted to [Operation 4a] as it is, and the filling of the high-pressure gas storage device 1 is started. Thereafter, the operation is continued in the order after [Operation 4a].
【００２８】本発明のボンベへの圧縮燃料ガス充填方法
及び装置は車載ボンベへの燃料ガスの充填だけでなく、
その他の高圧ガス容器への充填にも適用可能である。 The method and apparatus for filling a compressed fuel gas into a cylinder according to the present invention can be used not only for filling a fuel gas into a vehicle-mounted cylinder.
It is also applicable to filling other high pressure gas containers .
【００２９】[0029]
【発明の効果】本発明のボンベへの圧縮燃料ガス充填方
法及び装置によれば、簡単な設備を用いて圧縮燃料ガス
の自動車への充填を安全に行うことができ、設備費用を
節減することができる。また常に一定流量以上の充填速
度で充填を行うため、車載ボンベ等への燃料ガス充填時
間を短縮することができる。圧縮機ユニットからの圧縮
燃料ガスを直接車載ボンベ等に充填することができる。
更に車載ボンベ等の充填圧に応じて、所定の充填質量流
量を得るに必要な圧力の蓄ガス器から、又は必要な吐出
圧の圧縮機ユニットから直接、圧縮燃料ガスを充填する
ため、その燃料ガスの圧縮動力を節減することができ
る。According to the method and apparatus for filling compressed fuel gas into a cylinder according to the present invention, it is possible to safely fill a vehicle with compressed fuel gas using simple equipment, thereby reducing equipment costs. Can be. In addition, since the filling is always performed at a filling rate that is equal to or higher than a certain flow rate, the time for filling the vehicle-mounted cylinder or the like with the fuel gas can be reduced. The compressed fuel gas from the compressor unit can be directly charged into a vehicle cylinder or the like.
Further, in order to fill the compressed fuel gas directly from a gas accumulator having a pressure required to obtain a predetermined filling mass flow rate or a compressor unit having a required discharge pressure in accordance with a filling pressure of a vehicle-mounted cylinder or the like, Gas compression power can be saved.
【図１】従来の車載ボンベへの圧縮燃料ガス充填装置の
一例の系統図である。FIG. 1 is a system diagram of an example of a conventional apparatus for filling compressed fuel gas into a vehicle-mounted cylinder.
【図２】本発明のボンベへの圧縮燃料ガス充填装置の一
例の系統図である。FIG. 2 is a system diagram of an example of a device for filling compressed gas into a cylinder according to the present invention.
【図３】本発明のボンベへの圧縮燃料ガス充填装置の一
例の運転状況の説明図である。FIG. 3 is an explanatory diagram of an operation state of an example of the apparatus for filling compressed gas into a cylinder according to the present invention.
【図４】本発明のボンベへの圧縮燃料ガス充填装置の一
例の運転状況の説明図である。FIG. 4 is an explanatory diagram of an operation state of an example of the apparatus for filling a cylinder with compressed fuel gas according to the present invention.
【図５】本発明のボンベへの圧縮燃料ガス充填装置の一
例の運転状況の説明図である。FIG. 5 is an explanatory diagram of an operation state of an example of the apparatus for filling a cylinder with compressed fuel gas according to the present invention.
【図６】本発明のボンベへの圧縮燃料ガス充填装置の一
例の運転状況の説明図である。FIG. 6 is an explanatory diagram of an operation state of an example of the apparatus for filling compressed gas into a cylinder according to the present invention.
【図７】本発明のボンベへの圧縮燃料ガス充填装置の一
例の運転状況の説明図である。FIG. 7 is an explanatory diagram showing an operation state of an example of the apparatus for filling compressed gas into a cylinder according to the present invention.
【図８】本発明のボンベへの圧縮燃料ガス充填装置の別
の実施例の運転状況の説明図である。FIG. 8 is an explanatory diagram of an operation state of another embodiment of the apparatus for filling compressed gas into a cylinder according to the present invention.
【図９】本発明のボンベへの圧縮燃料ガス充填制御方式
のフローチャートである。FIG. 9 is a flowchart of a method for controlling the charging of compressed fuel gas into a cylinder according to the present invention.
１ 高圧蓄ガス器 ２ 可変圧蓄ガス器 ３ 圧縮機ユニット ４、５、７、１０、１４ 開閉弁 ６ 自動車 ８ ディスペンサーユニット ９ 質量流量計 １１、１２、１３ 圧力変換器 １４、１８、２２ 逆止弁 １５、１７、２０、２１、２３ 配管 １６ 第１開閉弁 １９ 第２開閉弁 ２４ 開閉弁 ２５ カプラー ２６ 制御器 ２７ 圧力スイッチ ２８ ディスペンサー圧力検出器 ２９ ガス導管 DESCRIPTION OF SYMBOLS 1 High pressure gas storage 2 Variable pressure gas storage 3 Compressor unit 4, 5, 7, 10, 14 On-off valve 6 Automobile 8 Dispenser unit 9 Mass flow meter 11, 12, 13 Pressure transducer 14, 18, 22 Non-return Valve 15, 17, 20, 21, 23 Piping 16 First on-off valve 19 Second on-off valve 24 On-off valve 25 Coupler 26 Controller 27 Pressure switch 28 Dispenser pressure detector 29 Gas conduit
フロントページの続き (72)発明者 川本 博史 大阪市中央区平野町４丁目１番２号 大 阪瓦斯株式会社内 (72)発明者 小林 明文 大阪市中央区平野町４丁目１番２号 大 阪瓦斯株式会社内 (56)参考文献 特開 平６−159595（ＪＰ，Ａ) 実開 平４−64700（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F17C 1/00 - 13/12 Continued on the front page (72) Inventor Hiroshi Kawamoto 4-1-2 Hirano-cho, Chuo-ku, Osaka-shi Inside Osaka Gas Co., Ltd. (72) Inventor Akifumi Kobayashi 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi Osaka (56) References JP-A-6-159595 (JP, A) JP-A-4-64700 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) F17C 1 / 00-13/12
Claims (5)
縮機ユニットで圧縮した圧縮燃料ガスを貯留する可変圧
蓄ガス器及び高圧蓄ガス器、車載ボンベ等への圧縮燃料
ガスの充填を制御するディスペンサーユニットをそれぞ
れ開閉弁又は逆止弁を備えた配管で接続した充填装置に
より、圧縮機ユニットで圧縮した燃料ガスを車載ボンベ
等に該ディスペンサーユニットを経て充填する方法にお
いて、先ず該圧縮機ユニットにより該高圧蓄ガス器及び
該可変圧蓄ガス器に圧縮燃料ガスを所定圧で充填してお
き、次に該可変圧蓄ガス器より該ディスペンサーユニッ
トを経て車載ボンベ等に圧縮燃料ガスを充填すると共
に、該圧縮機ユニットを運転して該圧縮機ユニットの吐
出ガスと可変圧蓄ガス器からのガスを合流して充填し、
該充填速度が所定の速度以下になったとき、流路を切り
換えて圧縮機ユニットの吐出圧縮燃料ガスと高圧蓄ガス
器からの圧縮燃料ガスを合流して車載ボンベ等に充填
し、その充填速度が所定速度以下に達すると、流路を切
り換えて圧縮機ユニットの吐出圧縮燃料ガスのみを流し
て充填すると共に、上記一連の車載ボンベ等への充填操
作の途中で車載ボンベ等の充填圧が所定の充填圧に達
し、車載ボンベ等への圧縮燃料ガスの充填が完了したと
きは、その時点で直ちに車載ボンベ等への充填を停止す
ることを特徴とするボンベへの圧縮燃料ガス充填方法。1. A compressor unit for compressing fuel gas, a variable pressure gas storage device and a high pressure gas storage device for storing the compressed fuel gas compressed by the compressor unit, and charging of the compressed fuel gas into a vehicle-mounted cylinder and the like. In a method of filling fuel gas compressed by a compressor unit into a vehicle-mounted cylinder or the like via the dispenser unit by a filling device in which the dispenser units to be connected are connected by pipes each having an on-off valve or a check valve, the compressor unit To fill the high-pressure gas storage device and the variable-pressure gas storage device with compressed fuel gas at a predetermined pressure, and then charge the compressed fuel gas from the variable-pressure gas storage device to a vehicle-mounted cylinder via the dispenser unit. Along with this, the compressor unit is operated and the discharge gas of the compressor unit and the gas from the variable pressure gas accumulator are combined and filled,
When the filling speed falls below a predetermined speed, the flow path is switched to combine the compressed fuel gas discharged from the compressor unit and the compressed fuel gas from the high-pressure gas storage unit and fill the vehicle-mounted cylinder or the like. When the pressure reaches a predetermined speed or less, the flow path is switched to allow only the compressed fuel gas discharged from the compressor unit to flow, and the filling pressure of the vehicle-mounted cylinder and the like is set to a predetermined value during the above-described series of charging operations for the vehicle-mounted cylinder and the like. When the filling pressure of the tank is reached and the filling of the compressed fuel gas into the vehicle-mounted cylinder or the like is completed, the filling of the vehicle-mounted cylinder or the like is stopped immediately at that time.
ユニットの吐出燃料ガスを先ず高圧蓄ガス器に充填し、
次いで該吐出燃料ガスを可変圧蓄ガス器に充填する請求
項１記載のボンベへの圧縮燃料ガス充填方法。2. After the filling of the on-board cylinder or the like is completed, the fuel gas discharged from the compressor unit is first charged into a high-pressure gas storage,
2. The method according to claim 1, wherein the discharged fuel gas is then charged into a variable pressure gas storage device.
縮機ユニットで圧縮した圧縮燃料ガスを貯留する可変圧
蓄ガス器及び高圧蓄ガス器、車載ボンベ等への圧縮燃料
ガスの充填を制御するディスペンサーユニットをそれぞ
れ開閉弁又は逆止弁を備えた配管で接続して備え有する
圧縮燃料ガス充填装置において、該圧縮機ユニットの吐
出管を逆止弁、第１開閉弁を経て可変圧蓄ガス器に配管
により繋ぎ、一方該高圧蓄ガス器を第２開閉弁を経てデ
ィスペンサーユニットに繋ぎ、該逆止弁から該第１開閉
弁に到る配管の途中から分岐して、別の逆止弁を経て該
第２開閉弁からディスペンサーユニットに到る配管の途
中に合流させ、更に該可変圧蓄ガス器から該高圧蓄ガス
器に逆止弁を経て繋ぎ、該ディスペンサーユニットには
充填速度を検出する質量流量計を備え、該質量流量計で
検出された質量流量が所定値以下に達した時、各開閉弁
の開閉制御及び該圧縮機ユニットの運転制御をする制御
機構を備えたことを特徴とするボンベへの圧縮燃料ガス
充填装置。3. A compressor unit for compressing the fuel gas, a variable pressure gas storage device and a high pressure gas storage device for storing the compressed fuel gas compressed by the compressor unit, and charging of the compressed fuel gas into a vehicle cylinder and the like. Fuel gas filling apparatus having a dispenser unit to be connected and connected by a pipe provided with an on-off valve or a check valve, respectively, wherein a discharge pipe of the compressor unit is connected to a variable-pressure storage gas through a check valve and a first on-off valve. To the dispenser unit via a second on-off valve, and branch off from the middle of the pipe from the check valve to the first on-off valve to form another check valve. Through the second open / close valve to the dispenser unit in the middle of the pipe, and further connects the variable pressure gas storage device to the high pressure gas storage device via a check valve, and the dispenser unit detects the filling speed. You A mass flow meter, and when the mass flow rate detected by the mass flow meter has reached a predetermined value or less, a control mechanism for controlling the opening and closing of each on-off valve and controlling the operation of the compressor unit. For filling compressed fuel gas into a compressed cylinder.
変換器の入口圧を検出する圧力スイッチを備え該圧力変
換器の出力信号により運転を制御する制御機構を備えた
請求項３記載のボンベへの圧縮燃料ガス充填装置。Claim 3 which includes a control mechanism for controlling the operation by the output signal of the pressure transducer comprises a pressure switch for detecting the inlet pressure of the pressure transducer for detecting the inlet pressure of the variable pressure accumulator gas unit An apparatus for filling compressed gas into a cylinder as described in the above.
イッチを備え該圧力スイッチの出力信号により運転を制
御する制御機構を備えた請求項４記載のボンベへの圧縮
燃料ガス充填装置。5. The apparatus according to claim 4, further comprising a pressure switch for detecting an inlet pressure of said high-pressure gas storage device, and a control mechanism for controlling operation by an output signal of said pressure switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6270683A JP2984812B2 (en) | 1994-10-08 | 1994-10-08 | Method and apparatus for filling compressed fuel gas into cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6270683A JP2984812B2 (en) | 1994-10-08 | 1994-10-08 | Method and apparatus for filling compressed fuel gas into cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08109999A JPH08109999A (en) | 1996-04-30 |
| JP2984812B2 true JP2984812B2 (en) | 1999-11-29 |
Family
ID=17489499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6270683A Expired - Fee Related JP2984812B2 (en) | 1994-10-08 | 1994-10-08 | Method and apparatus for filling compressed fuel gas into cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2984812B2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005127421A (en) * | 2003-10-23 | 2005-05-19 | Tatsuno Corp | Gas filling system |
| KR100699937B1 (en) * | 2006-06-09 | 2007-03-28 | 주식회사 효성 | Gas control panel |
| JP4714125B2 (en) * | 2006-11-16 | 2011-06-29 | 本田技研工業株式会社 | Gas fuel piping equipment |
| KR100804788B1 (en) * | 2007-03-19 | 2008-02-20 | 주식회사 엔케이 | Mobile type tube-trailer for charging CNG using compressor |
| JP5746962B2 (en) * | 2011-12-20 | 2015-07-08 | 株式会社神戸製鋼所 | Gas supply method and gas supply apparatus |
| JP5740688B2 (en) * | 2011-12-22 | 2015-06-24 | 日立オートモティブシステムズメジャメント株式会社 | Gas supply device |
| JP6279340B2 (en) | 2014-02-14 | 2018-02-14 | 株式会社神戸製鋼所 | Gas supply device, hydrogen station and gas supply method |
| JP6391428B2 (en) * | 2014-11-04 | 2018-09-19 | Ｊｘｔｇエネルギー株式会社 | Hydrogen filling method and hydrogen station |
| JP6526984B2 (en) * | 2015-02-20 | 2019-06-05 | 株式会社神戸製鋼所 | Gas filling system |
| EP3249281B1 (en) | 2016-05-23 | 2022-02-23 | Air Products And Chemicals, Inc. | Compressed gas dispensing |
| JP6586122B2 (en) * | 2017-03-15 | 2019-10-02 | 大陽日酸株式会社 | Hydrogen filling method of hydrogen station |
| JP7185277B2 (en) * | 2018-12-25 | 2022-12-07 | サムテック株式会社 | Hydrogen station and operating method of the hydrogen station |
-
1994
- 1994-10-08 JP JP6270683A patent/JP2984812B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08109999A (en) | 1996-04-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |