JP6385305B2 - Hydrogen station - Google Patents

Hydrogen station Download PDF

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JP6385305B2
JP6385305B2 JP2015062917A JP2015062917A JP6385305B2 JP 6385305 B2 JP6385305 B2 JP 6385305B2 JP 2015062917 A JP2015062917 A JP 2015062917A JP 2015062917 A JP2015062917 A JP 2015062917A JP 6385305 B2 JP6385305 B2 JP 6385305B2
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hydrogen
pressure
stage compressor
compression
storage container
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JP2016183684A (en
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愛 蓑田
愛 蓑田
暁 山本
暁 山本
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Eneos Corp
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JXTG Nippon Oil and Energy Corp
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    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/45—Hydrogen technologies in production processes

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  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Fuel Cell (AREA)

Description

本発明は、水素ステーションに関し、特に、水素輸送用容器（水素トレーラ、カードルなど）から水素貯蔵用容器への充填用の圧縮手段、及び、水素貯蔵用容器からディスペンサー用の蓄圧器への充填用の圧縮手段を備える水素ステーションに関する。   The present invention relates to a hydrogen station, and in particular, a compression means for filling a hydrogen storage container (hydrogen trailer, curdle, etc.) into a hydrogen storage container, and filling from a hydrogen storage container to a pressure accumulator for a dispenser. It is related with the hydrogen station provided with the compression means.

特許文献１には、多段の水素圧縮機、特に圧縮前の水素を中間段に選択的に供給可能とすることで、圧縮段数を可変とした可変段圧縮機を備える水素ステーションが開示されている。
そして、特許文献１に開示の水素ステーションでは、水素発生装置又は水素カードルからの水素を圧縮してディスペンサー用の蓄圧器に供給する際に、水素発生装置からの低圧の水素を圧縮する場合は、水素を多段圧縮機の初段に供給し、水素カードルからの中圧の水素を圧縮する場合は、水素を多段圧縮機の中間段に供給することで、可変段で圧縮している。 Patent Document 1 discloses a hydrogen station including a multi-stage hydrogen compressor, particularly a variable-stage compressor in which the number of compression stages is variable by selectively allowing hydrogen before compression to be supplied to an intermediate stage. .
And in the hydrogen station disclosed in Patent Document 1, when compressing the hydrogen from the hydrogen generator or hydrogen curdle and supplying it to the pressure accumulator for the dispenser, when compressing the low-pressure hydrogen from the hydrogen generator, When hydrogen is supplied to the first stage of the multi-stage compressor and medium-pressure hydrogen from the hydrogen curdle is compressed, the hydrogen is supplied to the intermediate stage of the multi-stage compressor, thereby compressing in a variable stage.

特開２００７−２６３２４５号公報JP 2007-263245 A

ところで、水素トレーラ、カードルなどの水素輸送用容器から供給される水素を圧縮して水素貯蔵用容器に充填し、水素貯蔵用容器から供給される水素を圧縮してディスペンサー用の蓄圧器に充填する水素ステーションでは、水素貯蔵用容器への充填用と、蓄圧器への充填用とに、それぞれ圧縮機が必要となり、設備コストが大となる。   By the way, hydrogen supplied from a hydrogen transport container such as a hydrogen trailer or a curdle is compressed and filled into a hydrogen storage container, and the hydrogen supplied from the hydrogen storage container is compressed and filled into a pressure accumulator for a dispenser. In the hydrogen station, a compressor is required for filling the hydrogen storage container and for filling the pressure accumulator, respectively, which increases the equipment cost.

本発明は、このような実状に鑑み、特許文献１に記載のような可変段圧縮機を利用し、単一の可変段圧縮機で、水素貯蔵容器への充填と蓄圧器への充填とを行うことができる水素ステーションを提供することを第１の課題とする。   In view of such a situation, the present invention uses a variable stage compressor as described in Patent Document 1 and performs filling of a hydrogen storage container and filling of a pressure accumulator with a single variable stage compressor. It is a first object to provide a hydrogen station that can be used.

また、従来の水素ステーションでは、圧縮機とその前段の容器との間に水素の圧力を例えば０．６ＭＰａ程度まで減圧する減圧弁を備えている。これは、水素の運用効率を向上させるべく圧縮機の前段の容器内が極低圧となるまで水素を払い出しても、要求圧力まで圧縮可能なように圧縮段数が設定されることから、圧縮機の前段の容器内の圧力が高いときに過圧縮とならないように、圧縮機の入口側の圧力を減圧するためである。しかし、その分、要求圧力まで圧縮するために、圧縮コスト（圧縮機駆動のための消費電力）が嵩んでしまう。   Further, the conventional hydrogen station is provided with a pressure reducing valve for reducing the pressure of hydrogen to about 0.6 MPa, for example, between the compressor and the container in the preceding stage. This is because the number of compression stages is set so that compression is possible to the required pressure even if hydrogen is discharged until the inside of the container in the front stage of the compressor becomes extremely low pressure in order to improve the operation efficiency of hydrogen. This is because the pressure on the inlet side of the compressor is reduced so that overcompression does not occur when the pressure in the previous vessel is high. However, the compression cost (power consumption for driving the compressor) increases due to the compression to the required pressure.

本発明は、このような問題にも対処可能とするため、水素ステーションにおいて、圧縮機の前段の容器内の圧力の変化（低下）に応じた最適な圧縮機の制御を可能とするシステムを構築することを第２の課題とする。   In order to cope with such a problem, the present invention constructs a system that enables optimum control of the compressor in response to a change (decrease) in the pressure in the vessel in front of the compressor at the hydrogen station. This is a second problem.

上記第１の課題を解決するために、本発明では、水素輸送用容器から供給される水素を圧縮して水素貯蔵用容器に充填する第１の圧縮手段と、前記水素貯蔵用容器から供給される水素を圧縮してディスペンサー用の蓄圧器に充填する第２の圧縮手段と、を備える水素ステーションにおいて、前記第１及び第２の圧縮手段は、複数の圧縮段を有すると共に圧縮段数が可変な単一の可変段圧縮機と、前記可変段圧縮機を前記第１の圧縮手段として使用するように、前記可変段圧縮機の入口側に前記水素輸送用容器を配管接続し、前記可変段圧縮機の出口側に前記水素貯蔵用容器を配管接続する第１の接続形態、及び、前記可変段圧縮機を前記第２の圧縮手段として使用するように、前記可変段圧縮機の入口側に前記水素貯蔵用容器を配管接続し、前記可変段圧縮機の出口側に前記蓄圧器を配管接続する第２の接続形態、を選択的に切換え可能とする接続切換装置と、を含んで構成され、前記第１の接続形態と前記第２の接続形態とで、前記可変段圧縮機の圧縮段数を変化させる。
具体的には、前記第１の接続形態では、前記第２の接続形態と比べ、前記可変段圧縮機の圧縮段数を小さくする。 In order to solve the first problem, in the present invention, the first compression means for compressing the hydrogen supplied from the hydrogen transport container and filling the hydrogen storage container and the hydrogen storage container are supplied. And a second compression unit that compresses hydrogen into a pressure accumulator for a dispenser, and the first and second compression units have a plurality of compression stages and the number of compression stages is variable. A single variable stage compressor, and the hydrogen transport container is connected to the inlet side of the variable stage compressor so as to use the variable stage compressor as the first compression means, and the variable stage compression is performed. A first connection configuration in which the hydrogen storage container is piped to the outlet side of the machine, and the variable stage compressor is used on the inlet side of the variable stage compressor so as to use the variable stage compressor as the second compression means. Connect the hydrogen storage container by piping, A connection switching device capable of selectively switching the second connection configuration in which the pressure accumulator is pipe-connected to the outlet side of the variable-stage compressor, and includes the first connection configuration and the first connection configuration. 2, the number of compression stages of the variable stage compressor is changed.
Specifically, in the first connection form, the number of compression stages of the variable stage compressor is made smaller than that in the second connection form.

また、上記第２の課題を解決するために、本発明では、前記第１及び第２の圧縮手段は、前記水素輸送用容器内の圧力を検出する第１の圧力検出装置と、前記水素貯蔵用容器内の圧力を検出する第２の圧力検出装置と、前記水素輸送用容器内の圧力に応じて、前記第１の圧縮手段として使用するときの前記可変段圧縮機の圧縮段数を変化させる第１の圧縮段数制御装置と、前記水素貯蔵用容器内の圧力に応じて、前記第２の圧縮手段として使用するときの前記可変段圧縮機の圧縮段数を変化させる第２の圧縮段数制御装置と、を更に含んで構成される。具体的には、圧力が高いほど圧縮段数を小さくし、圧力が低下するに伴って圧縮段数を大きくする。   In order to solve the second problem, in the present invention, the first and second compression means include a first pressure detection device that detects a pressure in the hydrogen transport container, and the hydrogen storage. And a second pressure detecting device for detecting the pressure in the container, and the number of compression stages of the variable stage compressor when used as the first compression means is changed according to the pressure in the hydrogen transport container. A first compression stage number control device and a second compression stage number control device that changes the number of compression stages of the variable stage compressor when used as the second compression means according to the pressure in the hydrogen storage container. And further comprising. Specifically, the higher the pressure, the smaller the number of compression stages, and the greater the pressure, the larger the number of compression stages.

本発明によれば、水素輸送用容器から水素貯蔵用容器への充填と、水素貯蔵用容器から蓄圧器への充填とを、１つの圧縮機で賄うことができ、しかも、それぞれに適した圧縮段数で圧縮を行うことができ、設備コストの低減等を図ることができる。   According to the present invention, the filling from the hydrogen transport container to the hydrogen storage container and the filling from the hydrogen storage container to the pressure accumulator can be covered by a single compressor, and compression suitable for each is provided. Compression can be performed by the number of stages, and the equipment cost can be reduced.

また、圧縮機の前段の容器内の圧力を検出し、これに応じて圧縮段数を制御することで、圧力が高いときは、圧縮段数を小さくして、圧縮コストの低下を図り、払い出しによって圧力が低下したときは、圧縮段数を大きくして、要求される充填圧力を確保することができ、最適な圧縮機の制御が可能となる。   Also, by detecting the pressure in the container at the front stage of the compressor and controlling the number of compression stages accordingly, when the pressure is high, the number of compression stages is reduced to reduce the compression cost. When the pressure decreases, the number of compression stages can be increased to ensure the required filling pressure, and optimal compressor control is possible.

本発明の第１実施形態を示す水素ステーションのシステム図System diagram of a hydrogen station showing a first embodiment of the present invention 本発明の第２実施形態を示す水素ステーションのシステム図System diagram of a hydrogen station showing a second embodiment of the present invention 本発明の第３実施形態を示す水素ステーションのシステム図System diagram of a hydrogen station showing a third embodiment of the present invention

以下、本発明の実施の形態について、詳細に説明する。
図１は本発明の第１実施形態を示す水素ステーションのシステム図である。 Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a system diagram of a hydrogen station showing a first embodiment of the present invention.

本実施形態の水素ステーションには、外部から、水素輸送用容器を用いて、水素が搬入される。水素輸送用容器としては、大型のボンベを束ねて搭載した自走式の水素トレーラ、又は、車両により搬送されて荷卸しされる小型のボンベ（シリンダ）を束ねた形の水素カードルなどがあり、特に限定されるものではない。但し、以下の説明では、便宜上、水素トレーラ１を用いるものとして説明する。   Hydrogen is carried into the hydrogen station of the present embodiment from the outside using a hydrogen transport container. Examples of the hydrogen transport container include a self-propelled hydrogen trailer in which large cylinders are bundled and mounted, or a hydrogen curdle in which small cylinders (cylinders) that are transported and unloaded by vehicles are bundled. It is not particularly limited. However, in the following description, it demonstrates as what uses the hydrogen trailer 1 for convenience.

本実施形態の水素ステーションは、水素トレーラ１から供給される水素を中圧（例えば４５ＭＰａ）で貯蔵する、全体として大容量の、水素貯蔵用容器（以下単に「貯蔵用容器」という）２と、ディスペンサー４により燃料電池自動車（ＦＣＶ）５へ供給する高圧（例えば８２ＭＰａ）の水素を蓄圧する、全体として小容量の、蓄圧器３と、を備える。   The hydrogen station of this embodiment stores hydrogen supplied from the hydrogen trailer 1 at an intermediate pressure (for example, 45 MPa), and has a large-capacity hydrogen storage container (hereinafter simply referred to as “storage container”) 2 as a whole. And an accumulator 3 having a small capacity as a whole and accumulating high-pressure (for example, 82 MPa) hydrogen supplied to the fuel cell vehicle (FCV) 5 by the dispenser 4.

貯蔵用容器２へは、水素トレーラ１が到着したときに、水素トレーラ１から供給される水素を圧縮して充填する。
蓄圧器３へは、ディスペンサー４によるＦＣＶ５への充填ごと、又は蓄圧器３内の水素が所定量消費されるごとなどに、貯蔵用容器２から供給される水素を圧縮して充填する。
ここで、貯蔵用容器２への圧縮充填、及び、蓄圧器３への圧縮充填のため、単一の可変段圧縮機６が用いられる。 When the hydrogen trailer 1 arrives at the storage container 2, the hydrogen supplied from the hydrogen trailer 1 is compressed and filled.
The pressure accumulator 3 is compressed and filled with hydrogen supplied from the storage container 2 every time the dispenser 4 fills the FCV 5 or whenever a predetermined amount of hydrogen in the pressure accumulator 3 is consumed.
Here, a single variable stage compressor 6 is used for compressing and filling the storage container 2 and compressing and filling the accumulator 3.

可変段圧縮機６は、複数のレシプロ型の圧縮段（本実施形態では第１〜第５シリンダ）を有すると共に圧縮段数が可変である。
可変段圧縮機６は、具体的には、中央のクランク式回転駆動部１０の回りに半径方向に放射状に第１〜第５シリンダ１１〜１５を有し、各シリンダ１１〜１５内にはクランク式回転駆動部１０のクランク軸により駆動されて往復動するピストン（図示せず）を有している。そして、各シリンダ１１〜１５のシリンダヘッドとピストンとの間にポンプ室（図示せず）が形成され、各ポンプ室には吸入ポートａ１〜ａ５と吐出ポートｂ１〜ｂ５とが設けられている。尚、吸入ポートａ１〜ａ５及び吐出ポートｂ１〜ｂ５にはそれぞれ一方向弁（図示せず）が装着されている。 The variable stage compressor 6 has a plurality of reciprocating compression stages (first to fifth cylinders in this embodiment) and the number of compression stages is variable.
Specifically, the variable-stage compressor 6 has first to fifth cylinders 11 to 15 radially in the radial direction around the center crank-type rotary drive unit 10, and each cylinder 11 to 15 has a crank. And a reciprocating piston (not shown) driven by the crankshaft of the rotary drive unit 10. A pump chamber (not shown) is formed between the cylinder head of each cylinder 11 to 15 and the piston, and suction ports a1 to a5 and discharge ports b1 to b5 are provided in each pump chamber. A one-way valve (not shown) is attached to each of the suction ports a1 to a5 and the discharge ports b1 to b5.

そして、前段のシリンダ１１〜１４の吐出ポートｂ１〜ｂ４と後段のシリンダ１２〜１５の吸入ポートａ２〜ａ５とを連通路ｃ１〜ｃ４により接続することで、５段の圧縮機を構成している。
この５段の圧縮機は、第１シリンダ１１の吸入ポートａ１から水素を吸入し、５段で圧縮して、第５シリンダ１５の吐出ポートｂ５から吐出する。 Then, the discharge ports b1 to b4 of the front cylinders 11 to 14 and the suction ports a2 to a5 of the rear cylinders 12 to 15 are connected by communication passages c1 to c4 to constitute a five-stage compressor. .
The five-stage compressor sucks hydrogen from the suction port a1 of the first cylinder 11, compresses it in five stages, and discharges it from the discharge port b5 of the fifth cylinder 15.

一方、第２シリンダ１２の吸入ポートａ２への連通路ｃ１に切換弁ｄ２を設けて、４段用吸入通路ｅ２を接続することで、４段の圧縮機を構成可能としている。
４段の圧縮機として使用する場合は、４段用吸入通路ｅ２及び切換弁ｄ２を用いて、第２シリンダ１２の吸入ポートａ２から水素を吸入し、４段で圧縮して、第５シリンダ１５の吐出ポートｂ５から吐出する。この場合、使用しない圧縮段（第１シリンダ１１）については、負荷をより低減するように、吸入側と吐出側とを連通させるなどするとよい。 On the other hand, a switching valve d2 is provided in the communication path c1 to the suction port a2 of the second cylinder 12 and the four-stage suction path e2 is connected, so that a four-stage compressor can be configured.
When the compressor is used as a four-stage compressor, hydrogen is sucked from the suction port a2 of the second cylinder 12 using the four-stage suction passage e2 and the switching valve d2, and compressed in the four stages. From the discharge port b5. In this case, for the compression stage (first cylinder 11) that is not used, the suction side and the discharge side may be communicated so as to further reduce the load.

言い換えれば、可変段圧縮機６は、圧縮前の水素を、第１圧縮段である第１シリンダ１１、又は、これより後段の第２シリンダ１２に、選択的に吸入可能に構成することで、可変段（５段圧縮機及び４段圧縮機）を実現している。   In other words, the variable stage compressor 6 is configured so that hydrogen before compression can be selectively sucked into the first cylinder 11 that is the first compression stage, or the second cylinder 12 that is subsequent thereto. Variable stage (5-stage compressor and 4-stage compressor) is realized.

ここにおいて、可変段圧縮機６の第２シリンダ１２の吸入ポートａ２に切換弁ｄ２を介してつながる４段用吸入通路ｅ２には、入口側から順に、水素トレーラ１との接続用のカップリング２０、開閉弁２１、減圧弁２２が設けられる。
従って、水素トレーラ１は、開閉弁２１、減圧弁２２を介して、可変段圧縮機６の４段用吸入通路ｅ２（第２シリンダ１２の吸入ポートａ２）に接続される。減圧弁２２の減圧圧力は例えば０．６ＭＰａに設定される。 Here, a four-stage intake passage e2 connected to the intake port a2 of the second cylinder 12 of the variable-stage compressor 6 via a switching valve d2 is connected in order from the inlet side to the coupling 20 for connection with the hydrogen trailer 1. The on-off valve 21 and the pressure reducing valve 22 are provided.
Accordingly, the hydrogen trailer 1 is connected to the four-stage intake passage e <b> 2 (the intake port a <b> 2 of the second cylinder 12) of the variable stage compressor 6 through the on-off valve 21 and the pressure reducing valve 22. The decompression pressure of the decompression valve 22 is set to 0.6 MPa, for example.

貯蔵用容器２の出口側は、開閉弁２３、減圧弁２４を介して、可変段圧縮機６の第１シリンダ１１の吸入ポートａ１に接続される。減圧弁２４の減圧圧力は例えば０．６ＭＰａに設定される。   The outlet side of the storage container 2 is connected to the suction port a1 of the first cylinder 11 of the variable stage compressor 6 via the on-off valve 23 and the pressure reducing valve 24. The decompression pressure of the decompression valve 24 is set to 0.6 MPa, for example.

可変段圧縮機６の最終圧縮段である第５シリンダ１５の吐出ポートｂ５からの出口配管は、２つに分岐し、一方は開閉弁２５、減圧弁２６を介して、貯蔵用容器２の入口側に接続され、他方は開閉弁２７、減圧弁２８を介して、蓄圧器３の入口側に接続される。減圧弁２６の減圧圧力は貯蔵用容器２の要求圧力に応じて例えば４５ＭＰａに設定される。減圧弁２８の減圧圧力は蓄圧器３の要求圧力に応じて例えば８２ＭＰａに設定される。   The outlet pipe from the discharge port b5 of the fifth cylinder 15 which is the final compression stage of the variable stage compressor 6 branches into two, one of which is the inlet of the storage container 2 via the on-off valve 25 and the pressure reducing valve 26. The other side is connected to the inlet side of the pressure accumulator 3 via the on-off valve 27 and the pressure reducing valve 28. The decompression pressure of the decompression valve 26 is set to 45 MPa, for example, according to the required pressure of the storage container 2. The decompression pressure of the decompression valve 28 is set to 82 MPa, for example, according to the required pressure of the accumulator 3.

開閉弁２１、２３、２５、２７及び切換弁ｄ２は、制御装置３０により制御される。
制御装置３０は、水素トレーラ１から貯蔵用容器２への圧縮充填時に、開閉弁２１、２５を開き、切換弁ｄ２を４段用吸入通路ｅ２と第２シリンダ１２の吸入ポートａ２とを連通させる位置に切換える。このとき、開閉弁２３、２７は閉状態に保持される。
制御装置３０は、また、貯蔵用容器２から蓄圧器３への圧縮充填時に、開閉弁２３、２７を開き、切換弁ｄ２を第１シリンダ１１の吐出ポートｂ１と第２シリンダ１２の吸入ポートａ２とを連通させる位置に切換える。このとき、開閉弁２１、２５は閉状態に保持される。 The on-off valves 21, 23, 25, 27 and the switching valve d2 are controlled by the control device 30.
The control device 30 opens the on-off valves 21 and 25 and causes the switching valve d2 to communicate with the suction passage e2 for the fourth stage and the suction port a2 of the second cylinder 12 when compressing and filling the storage container 2 from the hydrogen trailer 1. Switch to position. At this time, the on-off valves 23 and 27 are kept closed.
The control device 30 also opens the on-off valves 23 and 27 at the time of compression and filling from the storage container 2 to the pressure accumulator 3, and switches the switching valve d2 between the discharge port b1 of the first cylinder 11 and the suction port a2 of the second cylinder 12. Switch to the position where is connected. At this time, the on-off valves 21 and 25 are kept closed.

従って、開閉弁２１、２５及び開閉弁２３、２７は、可変段圧縮機６を貯蔵用容器２充填用の第１の圧縮手段として使用するように、可変段圧縮機６の入口側に水素トレーラ１を配管接続し、可変段圧縮機６の出口側に貯蔵用容器２を配管接続する第１の接続形態、及び、可変段圧縮機６を蓄圧器３充填用の第２の圧縮手段として使用するように、可変段圧縮機６の入口側に貯蔵用容器２を配管接続し、可変段圧縮機６の出口側に蓄圧器３を配管接続する第２の接続形態、を選択的に切換え可能とする接続切換装置に相当する。
また、前記第１の接続形態と前記第２の接続形態とで、可変段圧縮機６の圧縮段数を変化させる。具体的には、前記第１の接続形態では、前記第２の接続形態と比べ、可変段圧縮機６の圧縮段数を小さくする。 Therefore, the on-off valves 21 and 25 and the on-off valves 23 and 27 are provided with hydrogen trailers on the inlet side of the variable stage compressor 6 so that the variable stage compressor 6 is used as the first compression means for filling the storage container 2. 1 is connected to the outlet and the storage container 2 is connected to the outlet side of the variable stage compressor 6, and the variable stage compressor 6 is used as the second compression means for filling the pressure accumulator 3. As described above, the second connection configuration in which the storage container 2 is connected to the inlet side of the variable stage compressor 6 and the accumulator 3 is connected to the outlet side of the variable stage compressor 6 can be selectively switched. It corresponds to a connection switching device.
Further, the number of compression stages of the variable stage compressor 6 is changed between the first connection form and the second connection form. Specifically, in the first connection form, the number of compression stages of the variable stage compressor 6 is made smaller than that in the second connection form.

次に第１実施形態の作用を説明する。
水素トレーラ１が到着すると、水素トレーラ１は荷卸しのためカップリング２０に接続される。このとき、制御装置３０によって、開閉弁２１、２５が開き、切換弁ｄ２は４段用吸入通路ｅ２と第２シリンダ１２の吸入ポートａ２とを連通する位置に切換えられる。尚、開閉弁２３、２７は閉じている。 Next, the operation of the first embodiment will be described.
When the hydrogen trailer 1 arrives, the hydrogen trailer 1 is connected to the coupling 20 for unloading. At this time, the on / off valves 21 and 25 are opened by the control device 30, and the switching valve d2 is switched to a position where the four-stage suction passage e2 and the suction port a2 of the second cylinder 12 communicate with each other. The on-off valves 23 and 27 are closed.

このとき、水素トレーラ１内の水素は、開閉弁２１を通って減圧弁２２で例えば０．６ＭＰａまで減圧された後、切換弁ｄ２を通って可変段圧縮機６の第２シリンダ１２に吸入される。これにより、水素は第２〜第５シリンダ１２〜１５により４段で圧縮される。例えば、１段当たりの圧縮比を３．０とすると、４段で８１倍となり、０．６ＭＰａから４８．６ＭＰａまで昇圧される。   At this time, the hydrogen in the hydrogen trailer 1 is sucked into the second cylinder 12 of the variable stage compressor 6 through the switching valve d2 after being depressurized to 0.6 MPa by the pressure reducing valve 22 through the on-off valve 21. The Thereby, hydrogen is compressed in four stages by the second to fifth cylinders 12 to 15. For example, if the compression ratio per stage is 3.0, it is 81 times in 4 stages and the pressure is increased from 0.6 MPa to 48.6 MPa.

可変段圧縮機６の第５シリンダ１５の吐出ポートｂ５より吐出された水素は、開閉弁２５を通って減圧弁２６で例えば４５ＭＰａまで減圧された後、貯蔵用容器２内に充填される。   The hydrogen discharged from the discharge port b5 of the fifth cylinder 15 of the variable stage compressor 6 is reduced to, for example, 45 MPa by the pressure reducing valve 26 through the opening / closing valve 25 and then filled into the storage container 2.

貯蔵用容器２内に貯蔵されている中圧の水素を高圧にして蓄圧器３に蓄圧する際は、制御装置３０によって、開閉弁２３、２７を開き、切換弁ｄ２を第１シリンダ１１の吐出ポートｂ１と第２シリンダ１２の吸入ポートａ２とを連通する位置に切換える。尚、開閉弁２１、２５は閉じている。   When the intermediate pressure hydrogen stored in the storage container 2 is made high and stored in the pressure accumulator 3, the control device 30 opens the on-off valves 23 and 27, and the switching valve d2 is discharged from the first cylinder 11. The port b1 and the suction port a2 of the second cylinder 12 are switched to a communicating position. The on-off valves 21 and 25 are closed.

このとき、貯蔵用容器２内の水素は、開閉弁２３を通って減圧弁２４で例えば０．６ＭＰａまで減圧された後、可変段圧縮機６の第１シリンダ１１に吸入される。これにより、水素は第１〜第５シリンダ１１〜１５により５段で圧縮される。例えば、１段当たりの圧縮比を３．０とすると、５段で２４３倍となり、０．６ＭＰａから１４５．８ＭＰａまで昇圧される。   At this time, the hydrogen in the storage container 2 is sucked into the first cylinder 11 of the variable stage compressor 6 after being decompressed to 0.6 MPa by the pressure reducing valve 24 through the on-off valve 23. Thereby, hydrogen is compressed in five stages by the first to fifth cylinders 11 to 15. For example, when the compression ratio per stage is 3.0, the pressure is increased by 243 times in 5 stages and increased from 0.6 MPa to 145.8 MPa.

可変段圧縮機６の第５シリンダ１５の吐出ポートｂ５より吐出された水素は、開閉弁２７を通って減圧弁２８で例えば８２ＭＰａまで減圧された後、蓄圧器３内に充填される。
蓄圧器３内に蓄圧された高圧の水素は、適宜、ディスペンサー４により、ＦＣＶ５に差圧充填される。 The hydrogen discharged from the discharge port b5 of the fifth cylinder 15 of the variable stage compressor 6 is reduced to, for example, 82 MPa by the pressure reducing valve 28 through the on-off valve 27 and then filled in the pressure accumulator 3.
The high-pressure hydrogen accumulated in the accumulator 3 is appropriately filled into the FCV 5 by the dispenser 4.

本実施形態によれば、水素トレーラ１から貯蔵用容器２への充填と、貯蔵用容器２から蓄圧器３への充填とを、１つの圧縮機６で賄うことができ、しかも、それぞれに適した圧縮段数で圧縮を行うことができ、設備コストの低減等を図ることができる。   According to the present embodiment, the filling from the hydrogen trailer 1 to the storage container 2 and the filling from the storage container 2 to the pressure accumulator 3 can be covered by one compressor 6 and are suitable for each. The compression can be performed with the number of compression stages, and the equipment cost can be reduced.

また、本実施形態では、水素トレーラ１から可変段圧縮機６への入口配管、及び、貯蔵用容器２から可変段圧縮機６への入口配管のそれぞれに、可変段圧縮機６の入口側要求圧力に応じて減圧圧力が設定された減圧弁２２、２４を有する。これにより、圧縮コストは増大するものの、水素トレーラ１や貯蔵用容器２から水素を十分に払い出すことができ、水素の運用効率が向上する。   Further, in the present embodiment, the inlet side request of the variable stage compressor 6 is required for each of the inlet pipe from the hydrogen trailer 1 to the variable stage compressor 6 and the inlet pipe from the storage container 2 to the variable stage compressor 6. There are pressure reducing valves 22 and 24 in which the pressure reducing pressure is set according to the pressure. Thereby, although compression cost increases, hydrogen can be fully discharged from the hydrogen trailer 1 and the storage container 2, and the operation efficiency of hydrogen improves.

また、本実施形態では、可変段圧縮機６から貯蔵用容器２への出口配管、及び、可変段圧縮機６から蓄圧器３への出口配管のそれぞれに、貯蔵用容器２及び蓄圧器３の要求圧力に応じて減圧圧力が設定された減圧弁２６、２８を有する。これにより、貯蔵用容器２及び蓄圧器３の要求圧力を確実に実現することができる。   Further, in the present embodiment, the storage container 2 and the pressure accumulator 3 are respectively connected to the outlet pipe from the variable stage compressor 6 to the storage container 2 and the outlet pipe from the variable stage compressor 6 to the pressure accumulator 3. There are pressure reducing valves 26 and 28 in which the pressure reducing pressure is set according to the required pressure. Thereby, the required pressure of the storage container 2 and the pressure accumulator 3 can be reliably realized.

図２は本発明の第２実施形態を示す水素ステーションのシステム図である。図２において、図１と同一要素には同一符号を付して説明を省略し、異なる要素について説明する。   FIG. 2 is a system diagram of a hydrogen station showing a second embodiment of the present invention. In FIG. 2, the same elements as those in FIG. 1 are denoted by the same reference numerals, description thereof is omitted, and different elements are described.

本実施形態では、圧縮機６の第４シリンダ１４の吐出ポートｂ４からの連通路ｃ４に切換弁ｆ４を設けて、４段用吐出通路ｇ４を接続することで、４段の圧縮機を構成可能としている。
４段の圧縮機として使用する場合は、第１シリンダ１１の吸入ポートａ１から水素を吸入し、４段で圧縮して、第４シリンダ１４の吐出ポートｂ４から、切換弁ｆ４及び４段用吐出通路ｇ４を用いて、吐出する。 In the present embodiment, a four-stage compressor can be configured by providing a switching valve f4 in the communication path c4 from the discharge port b4 of the fourth cylinder 14 of the compressor 6 and connecting the four-stage discharge path g4. It is said.
When used as a four-stage compressor, hydrogen is sucked from the suction port a1 of the first cylinder 11, compressed in four stages, and discharged from the discharge port b4 of the fourth cylinder 14 to the switching valve f4 and the four-stage discharge. It discharges using the passage g4.

言い換えれば、本実施形態の可変段圧縮機６は、圧縮後の水素を、最終圧縮段である第５シリンダ１５、又は、これより前段の第４シリンダ１４から、選択的に吐出可能に構成することで、可変段（５段圧縮機及び４段圧縮機）を実現している。   In other words, the variable stage compressor 6 of the present embodiment is configured so that the compressed hydrogen can be selectively discharged from the fifth cylinder 15 as the final compression stage or the fourth cylinder 14 at the preceding stage. This realizes a variable stage (5-stage compressor and 4-stage compressor).

ここにおいて、可変段圧縮機６の第１シリンダ１１の吸入ポートａ１への入口配管は、２つに分岐し、一方の分岐路には、入口側から順に、水素トレーラ１との接続用のカップリング２０、開閉弁２１、減圧弁２２が設けられる。
従って、水素トレーラ１は、開閉弁２１、減圧弁２２を介して、可変段圧縮機６の第１シリンダ１１の吸入ポートａ１に接続される。減圧弁２２の減圧圧力は例えば０．６ＭＰａに設定される。 Here, the inlet piping to the suction port a1 of the first cylinder 11 of the variable stage compressor 6 is branched into two, and one of the branch passages is connected to the hydrogen trailer 1 in order from the inlet side. A ring 20, an on-off valve 21, and a pressure reducing valve 22 are provided.
Accordingly, the hydrogen trailer 1 is connected to the suction port a1 of the first cylinder 11 of the variable stage compressor 6 via the on-off valve 21 and the pressure reducing valve 22. The decompression pressure of the decompression valve 22 is set to 0.6 MPa, for example.

そして、可変段圧縮機６の第１シリンダ１１の吸入ポートａ１への入口配管の他方の分岐路には、貯蔵用容器２の出口側が開閉弁２３、減圧弁２４を介して接続される。減圧弁２４の減圧圧力は例えば０．６ＭＰａに設定される。   The outlet side of the storage container 2 is connected to the other branch passage of the inlet pipe to the suction port a <b> 1 of the first cylinder 11 of the variable stage compressor 6 via the opening / closing valve 23 and the pressure reducing valve 24. The decompression pressure of the decompression valve 24 is set to 0.6 MPa, for example.

可変段圧縮機６の第４シリンダ１４の吐出ポートｂ４に切換弁ｆ４を介してつながる４段用吐出通路ｇ４は、開閉弁２５、減圧弁２６を介して、貯蔵用容器２の入口側に接続される。減圧弁２６の減圧圧力は貯蔵用容器２の要求圧力に応じて例えば４５ＭＰａに設定される。
可変段圧縮機６の第５シリンダ１５の吐出ポートｂ５からの出口配管は、開閉弁２７、減圧弁２８を介して、蓄圧器３の入口側に接続される。減圧弁２８の減圧圧力は蓄圧器３の要求圧力に応じて例えば８２ＭＰａに設定される。 A four-stage discharge passage g4 connected to the discharge port b4 of the fourth cylinder 14 of the variable-stage compressor 6 via the switching valve f4 is connected to the inlet side of the storage container 2 via the on-off valve 25 and the pressure reducing valve 26. Is done. The decompression pressure of the decompression valve 26 is set to 45 MPa, for example, according to the required pressure of the storage container 2.
The outlet pipe from the discharge port b5 of the fifth cylinder 15 of the variable stage compressor 6 is connected to the inlet side of the pressure accumulator 3 via the on-off valve 27 and the pressure reducing valve 28. The decompression pressure of the decompression valve 28 is set to 82 MPa, for example, according to the required pressure of the accumulator 3.

開閉弁２１、２３、２５、２７及び切換弁ｆ４は、制御装置３０により制御される。
制御装置３０は、水素トレーラ１から貯蔵用容器２への圧縮充填時に、開閉弁２１、２５を開き、切換弁ｆ４を第４シリンダ１４の吐出ポートｂ４と４段用吐出通路ｇ４とを連通させる位置に切換える。このとき、開閉弁２３、２７は閉状態に保持される。
制御装置３０は、また、貯蔵用容器２から蓄圧器３への圧縮充填時に、開閉弁２３、２７を開き、切換弁ｆ４を第４シリンダ１４の吐出ポートｂ４と第５シリンダ１５の吸入ポートａ５とを連通させる位置に切換える。このとき、開閉弁２１、２５は閉状態に保持される。 The on-off valves 21, 23, 25, 27 and the switching valve f4 are controlled by the control device 30.
The control device 30 opens the on-off valves 21 and 25 and causes the switching valve f4 to communicate with the discharge port b4 of the fourth cylinder 14 and the four-stage discharge passage g4 at the time of compression filling from the hydrogen trailer 1 to the storage container 2. Switch to position. At this time, the on-off valves 23 and 27 are kept closed.
The control device 30 also opens the on-off valves 23 and 27 and compresses the switching valve f4 at the discharge port b4 of the fourth cylinder 14 and the suction port a5 of the fifth cylinder 15 at the time of compression filling from the storage container 2 to the pressure accumulator 3. Switch to the position where is connected. At this time, the on-off valves 21 and 25 are kept closed.

次に第２実施形態の作用を説明する。
水素トレーラ１が到着すると、水素トレーラ１は荷卸しのためカップリング２０に接続される。このとき、制御装置３０によって、開閉弁２１、２５が開き、切換弁ｆ４は第４シリンダ１４の吐出ポートｂ４と４段用吐出通路ｇ４とを連通する位置に切換えられる。尚、開閉弁２３、２７は閉じている。 Next, the operation of the second embodiment will be described.
When the hydrogen trailer 1 arrives, the hydrogen trailer 1 is connected to the coupling 20 for unloading. At this time, the control device 30 opens the on-off valves 21 and 25, and the switching valve f4 is switched to a position where the discharge port b4 of the fourth cylinder 14 communicates with the four-stage discharge passage g4. The on-off valves 23 and 27 are closed.

このとき、水素トレーラ１内の水素は、開閉弁２１を通って減圧弁２２で例えば０．６ＭＰａまで減圧された後、可変段圧縮機６の第１シリンダ１１に吸入される。これにより、水素は第１〜第４シリンダ１１〜１４により４段で圧縮される。   At this time, the hydrogen in the hydrogen trailer 1 is sucked into the first cylinder 11 of the variable stage compressor 6 after being decompressed to 0.6 MPa by the pressure reducing valve 22 through the on-off valve 21. Thereby, hydrogen is compressed in four stages by the first to fourth cylinders 11 to 14.

可変段圧縮機６の第４シリンダ１４の吐出ポートｂ４より吐出された水素は、切換弁ｆ４、４段用吐出通路ｇ４、開閉弁２５を通って減圧弁２６で例えば４５ＭＰａまで減圧された後、貯蔵用容器２内に充填される。   The hydrogen discharged from the discharge port b4 of the fourth cylinder 14 of the variable stage compressor 6 is reduced in pressure to, for example, 45 MPa by the pressure reducing valve 26 through the switching valve f4, the four-stage discharge passage g4, and the opening / closing valve 25, The storage container 2 is filled.

貯蔵用容器２内に貯蔵されている中圧の水素を高圧にして蓄圧器３に蓄圧する際は、制御装置３０によって、開閉弁２３、２７を開き、切換弁ｆ４を第４シリンダ１４の吐出ポートｂ４と第５シリンダ１５の吸入ポートａ５とを連通する位置に切換える。尚、開閉弁２１、２５は閉じている。   When the intermediate pressure hydrogen stored in the storage container 2 is made high and accumulated in the accumulator 3, the control device 30 opens the on-off valves 23 and 27, and the switching valve f4 is discharged from the fourth cylinder 14. The position is switched to a position where the port b4 and the suction port a5 of the fifth cylinder 15 communicate with each other. The on-off valves 21 and 25 are closed.

このとき、貯蔵用容器２内の水素は、開閉弁２３を通って減圧弁２４で例えば０．６ＭＰａまで減圧された後、可変段圧縮機６の第１シリンダ１１に吸入される。これにより、水素は第１〜第５シリンダ１１〜１５により５段で圧縮される。   At this time, the hydrogen in the storage container 2 is sucked into the first cylinder 11 of the variable stage compressor 6 after being decompressed to 0.6 MPa by the pressure reducing valve 24 through the on-off valve 23. Thereby, hydrogen is compressed in five stages by the first to fifth cylinders 11 to 15.

可変段圧縮機６の第５シリンダ１５の吐出ポートｂ５より吐出された水素は、開閉弁２７を通って減圧弁２８で例えば８２ＭＰａまで減圧された後、蓄圧器３内に充填される。
蓄圧器３内に蓄圧された高圧の水素は、適宜、ディスペンサー４により、ＦＣＶ５に差圧充填される。 The hydrogen discharged from the discharge port b5 of the fifth cylinder 15 of the variable stage compressor 6 is reduced to, for example, 82 MPa by the pressure reducing valve 28 through the on-off valve 27 and then filled in the pressure accumulator 3.
The high-pressure hydrogen accumulated in the accumulator 3 is appropriately filled into the FCV 5 by the dispenser 4.

第２実施形態によれば、第１実施形態とほぼ同様の効果が得られる。   According to the second embodiment, substantially the same effect as the first embodiment can be obtained.

図３は本発明の第３実施形態を示す水素ステーションのシステム図である。図３において、図１と同一要素には同一符号を付して説明を省略し、異なる要素について説明する。   FIG. 3 is a system diagram of a hydrogen station showing a third embodiment of the present invention. In FIG. 3, the same elements as those in FIG. 1 are denoted by the same reference numerals, description thereof is omitted, and different elements are described.

本実施形態では、圧縮機６の第２シリンダ１２の吸入ポートａ２への連通路ｃ１に切換弁ｄ２を設けて、４段用吸入通路ｅ２を接続することで、４段の圧縮機を構成可能としている。
また、圧縮機６の第３シリンダ１３の吸入ポートａ３への連通路ｃ２に切換弁ｄ３を設けて、３段用吸入通路ｅ３を接続することで、３段の圧縮機を構成可能としている。
また、圧縮機６の第４シリンダ１４の吸入ポートａ４への連通路ｃ３に切換弁ｄ４を設けて、２段用吸入通路ｅ４を接続することで、２段の圧縮機を構成可能としている。
また、圧縮機６の第５シリンダ１４の吸入ポートａ５への連通路ｃ４に切換弁ｄ５を設けて、１段用吸入通路ｅ５を接続することで、１段の圧縮機を構成可能としている。 In the present embodiment, a four-stage compressor can be configured by providing a switching valve d2 in the communication path c1 to the suction port a2 of the second cylinder 12 of the compressor 6 and connecting the four-stage suction path e2. It is said.
Further, a switching valve d3 is provided in the communication path c2 to the suction port a3 of the third cylinder 13 of the compressor 6 and the three-stage suction path e3 is connected, so that a three-stage compressor can be configured.
In addition, a switching valve d4 is provided in the communication path c3 to the suction port a4 of the fourth cylinder 14 of the compressor 6 and the two-stage suction path e4 is connected, whereby a two-stage compressor can be configured.
Further, a switching valve d5 is provided in the communication path c4 to the suction port a5 of the fifth cylinder 14 of the compressor 6 and the first-stage suction path e5 is connected, whereby a one-stage compressor can be configured.

言い換えれば、可変段圧縮機６は、圧縮前の水素を、第１圧縮段である第１シリンダ１１、又は、これより後段の第２〜第５シリンダ１２〜１５に、選択的に吸入可能に構成することで、可変段（５段圧縮機〜１段圧縮機）を実現している。   In other words, the variable-stage compressor 6 can selectively suck hydrogen before compression into the first cylinder 11 that is the first compression stage or the second to fifth cylinders 12 to 15 that are later than the first compression stage. By configuring, a variable stage (5-stage compressor to 1-stage compressor) is realized.

ここにおいて、水素トレーラ１との接続用のカップリング２０からの水素通路には、カップリング２０側から順に、圧力センサ３１、開閉弁２１が設けられ、これらの下流側は、この例では４つに分岐して、それぞれに開閉弁４２〜４５と減圧弁５２〜５５とが設けられる。尚、開閉弁４２〜４５は開閉弁２１の開時にいずれか１つが選択的に開となる。
そして、各減圧弁５２〜５５（各開閉弁４２〜４５）の下流側は、可変段圧縮機６の第２〜第５シリンダ１２〜１５の吸入ポートａ２〜ａ５に切換弁ｄ２〜ｄ５を介してつながる４段〜１段用吸入通路ｅ２〜ｅ５（又はその一方の分岐路）に接続されている。
減圧弁５２の減圧圧力は例えば０．６ＭＰａ、減圧弁５３の減圧圧力は例えば１．８ＭＰａ、減圧弁５４の減圧圧力は例えば５．４ＭＰａ、減圧弁５５の減圧圧力は例えば１６．２ＭＰａに設定される。但し、減圧弁５２〜５５は省略可能である。 Here, in the hydrogen passage from the coupling 20 for connection with the hydrogen trailer 1, a pressure sensor 31 and an on-off valve 21 are provided in this order from the coupling 20 side, and there are four downstreams in this example. The on / off valves 42 to 45 and the pressure reducing valves 52 to 55 are respectively provided. One of the on-off valves 42 to 45 is selectively opened when the on-off valve 21 is opened.
And the downstream side of each pressure-reduction valve 52-55 (each on-off valve 42-45) is connected to the suction ports a2-a5 of the 2nd-5th cylinders 12-15 of the variable stage compressor 6 via the switching valves d2-d5. Connected to the four-stage to first-stage suction passages e2 to e5 (or one of the branch paths).
The pressure reducing pressure of the pressure reducing valve 52 is set to 0.6 MPa, the pressure reducing pressure of the pressure reducing valve 53 is set to 1.8 MPa, the pressure reducing pressure of the pressure reducing valve 54 is set to 5.4 MPa, and the pressure reducing pressure of the pressure reducing valve 55 is set to 16.2 MPa, for example. The However, the pressure reducing valves 52 to 55 can be omitted.

貯蔵用容器２の出口側には、圧力センサ３２、開閉弁２３が順に設けられ、これらの下流側は、この例では３つに分岐して、それぞれに開閉弁６１〜６３と減圧弁７１〜７３とが設けられる。尚、開閉弁６１〜６３は開閉弁２３の開時にいずれか１つが選択的に開となる。
そして、減圧弁７１（開閉弁６１）の下流側は、可変段圧縮機６の第１シリンダ１１の吸入ポートａ１に直接接続され、減圧弁７２、７３（開閉弁６２、６３）の下流側は、可変段圧縮機６の第２、第３シリンダ１２、１３の吸入ポートａ２、ａ３に切換弁ｄ２、ｄ３を介してつながる４段、３段用吸入通路ｅ２、ｅ３の他方の分岐路に接続されている。
減圧弁７１の減圧圧力は例えば０．６ＭＰａ、減圧弁７２の減圧圧力は例えば１．８ＭＰａ、減圧弁７３の減圧圧力は例えば５．４ＭＰａに設定される。但し、減圧弁７１〜７３は省略可能である。 A pressure sensor 32 and an opening / closing valve 23 are provided in this order on the outlet side of the storage container 2, and these downstream sides are branched into three in this example, and the opening / closing valves 61 to 63 and the pressure reducing valves 71 to 71 are respectively provided. 73 is provided. One of the on-off valves 61 to 63 is selectively opened when the on-off valve 23 is opened.
The downstream side of the pressure reducing valve 71 (open / close valve 61) is directly connected to the suction port a1 of the first cylinder 11 of the variable stage compressor 6. The downstream side of the pressure reducing valves 72, 73 (open / close valves 62, 63) , Connected to the other branch of the four- and three-stage intake passages e2 and e3 connected to the suction ports a2 and a3 of the second and third cylinders 12 and 13 of the variable-stage compressor 6 via the switching valves d2 and d3. Has been.
The pressure reducing pressure of the pressure reducing valve 71 is set to 0.6 MPa, the pressure reducing pressure of the pressure reducing valve 72 is set to 1.8 MPa, for example, and the pressure reducing pressure of the pressure reducing valve 73 is set to 5.4 MPa, for example. However, the pressure reducing valves 71 to 73 can be omitted.

可変段圧縮機６の最終圧縮段である第５シリンダ１５の吐出ポートｂ５からの出口配管は、２つに分岐し、一方は開閉弁２５、減圧弁２６を介して、貯蔵用容器２の入口側に接続され、他方は開閉弁２７、減圧弁２８を介して、蓄圧器３の入口側に接続される。減圧弁２６の減圧圧力は貯蔵用容器２の要求圧力に応じて例えば４５ＭＰａに設定される。減圧弁２８の減圧圧力は蓄圧器３の要求圧力に応じて例えば８２ＭＰａに設定される。   The outlet pipe from the discharge port b5 of the fifth cylinder 15 which is the final compression stage of the variable stage compressor 6 branches into two, one of which is the inlet of the storage container 2 via the on-off valve 25 and the pressure reducing valve 26. The other side is connected to the inlet side of the pressure accumulator 3 via the on-off valve 27 and the pressure reducing valve 28. The decompression pressure of the decompression valve 26 is set to 45 MPa, for example, according to the required pressure of the storage container 2. The decompression pressure of the decompression valve 28 is set to 82 MPa, for example, according to the required pressure of the accumulator 3.

開閉弁２１、２３、２５、２７、４２〜４５、６１〜６３及び切換弁ｄ２〜ｄ５は、制御装置３０により制御される。
圧力センサ３１は、第１の圧力検出装置として、水素トレーラ１内の水素の圧力を検出する。圧力センサ３２は、第２の圧力検出装置として、貯蔵用容器２内の水素の圧力を検出する。これらの圧力センサ３１、３２の検出信号は制御装置３０に入力される。 The on-off valves 21, 23, 25, 27, 42 to 45, 61 to 63 and the switching valves d2 to d5 are controlled by the control device 30.
The pressure sensor 31 detects the pressure of hydrogen in the hydrogen trailer 1 as a first pressure detection device. The pressure sensor 32 detects the pressure of hydrogen in the storage container 2 as a second pressure detection device. Detection signals from these pressure sensors 31 and 32 are input to the control device 30.

制御装置３０は、水素トレーラ１から貯蔵用容器２への圧縮充填時に、開閉弁２１、２５を開くと共に、圧力センサ３１により検出される水素トレーラ１内の水素圧力に応じて、目標とする４５ＭＰａ以上の圧縮後圧力を得るように、圧縮段数を定めて、開閉弁４２〜４５のいずれか１つを選択的に開く。また、開閉弁４２〜４５の選択的に開くと同時に、対応する切換弁ｄ２〜ｄ５を選択的に切換える。このとき、開閉弁２３、２７は閉状態に保持される。
制御装置３０は、また、貯蔵用容器２から蓄圧器３への圧縮充填時に、開閉弁２３、２７を開くと共に、圧力センサ３２により検出される貯蔵用容器２内の水素圧力に応じて、目標とする８２ＭＰａ以上の圧縮後圧力を得るように、圧縮段数を定めて、開閉弁６１〜６３のいずれか１つを選択的に開く。開閉弁６２又は６３を開いた場合は、これと同時に、対応する切換弁ｄ２又はｄ３を選択的に切換える。このとき、開閉弁２１、２５は閉状態に保持される。 The control device 30 opens the on-off valves 21 and 25 when compressing and filling the storage container 2 from the hydrogen trailer 1, and sets a target 45 MPa according to the hydrogen pressure in the hydrogen trailer 1 detected by the pressure sensor 31. The number of compression stages is determined so as to obtain the pressure after compression, and any one of the on-off valves 42 to 45 is selectively opened. At the same time as the on-off valves 42 to 45 are selectively opened, the corresponding switching valves d2 to d5 are selectively switched. At this time, the on-off valves 23 and 27 are kept closed.
The control device 30 also opens the on-off valves 23 and 27 and compresses the target according to the hydrogen pressure in the storage container 2 detected by the pressure sensor 32 during compression filling from the storage container 2 to the pressure accumulator 3. In order to obtain a pressure after compression of 82 MPa or more, the number of compression stages is determined, and any one of the on-off valves 61 to 63 is selectively opened. When the on-off valve 62 or 63 is opened, the corresponding switching valve d2 or d3 is selectively switched at the same time. At this time, the on-off valves 21 and 25 are kept closed.

従って、開閉弁２１、２５及び開閉弁２３、２７は、可変段圧縮機６を貯蔵用容器２充填用の第１の圧縮手段として使用するように、可変段圧縮機６の入口側に水素トレーラ１を配管接続し、可変段圧縮機６の出口側に貯蔵用容器２を配管接続する第１の接続形態、及び、可変段圧縮機６を蓄圧器３充填用の第２の圧縮手段として使用するように、可変段圧縮機６の入口側に貯蔵用容器２を配管接続し、可変段圧縮機６の出口側に蓄圧器３を配管接続する第２の接続形態、を選択的に切換え可能とする接続切換装置に相当する。   Therefore, the on-off valves 21 and 25 and the on-off valves 23 and 27 are provided with hydrogen trailers on the inlet side of the variable stage compressor 6 so that the variable stage compressor 6 is used as the first compression means for filling the storage container 2. 1 is connected to the outlet and the storage container 2 is connected to the outlet side of the variable stage compressor 6, and the variable stage compressor 6 is used as the second compression means for filling the pressure accumulator 3. As described above, the second connection configuration in which the storage container 2 is connected to the inlet side of the variable stage compressor 6 and the accumulator 3 is connected to the outlet side of the variable stage compressor 6 can be selectively switched. It corresponds to a connection switching device.

開閉弁４２〜４５は、水素トレーラ１内の圧力に応じて、前記第１の圧縮手段として使用するときの可変段圧縮機６の圧縮段数を変化させる第１の圧縮段数制御装置に相当する。
開閉弁７１〜７３は、貯蔵用容器２内の圧力に応じて、前記第２の圧縮手段として使用するときの可変段圧縮機６の圧縮段数を変化させる第２の圧縮段数制御装置に相当する。 The on-off valves 42 to 45 correspond to a first compression stage number control device that changes the number of compression stages of the variable stage compressor 6 when used as the first compression means according to the pressure in the hydrogen trailer 1.
The on-off valves 71 to 73 correspond to a second compression stage number control device that changes the number of compression stages of the variable stage compressor 6 when used as the second compression means according to the pressure in the storage container 2. .

次に第３実施形態の作用を説明する。
水素トレーラ１が到着すると、水素トレーラ１は荷卸しのためカップリング２０に接続される。このとき、制御装置３０によって、開閉弁２１、２５が開く。開閉弁２３、２７は閉じている。
また、制御装置３０によって、圧力センサ３１の信号に基づいて、水素トレーラ１内の圧力が検出され、これに応じて、開閉弁４２〜４５のいずれか１つが選択的に開く。また、対応する切換弁ｄ２〜ｄ５が選択的に切換えられる。 Next, the operation of the third embodiment will be described.
When the hydrogen trailer 1 arrives, the hydrogen trailer 1 is connected to the coupling 20 for unloading. At this time, the control device 30 opens the on-off valves 21 and 25. The on-off valves 23 and 27 are closed.
Further, the control device 30 detects the pressure in the hydrogen trailer 1 based on the signal of the pressure sensor 31, and according to this, any one of the on-off valves 42 to 45 is selectively opened. Further, the corresponding switching valves d2 to d5 are selectively switched.

このとき、水素トレーラ１内の水素は、開閉弁２１から、開閉弁４２〜４５のいずれか１つを通り、更に対応する切換弁ｄ２〜ｄ５を通って、可変段圧縮機６の第２〜第５シリンダ１２〜１５のいずれか１つに吸入される。これにより、水素は第２シリンダ１２に吸入された場合は４段で、第３シリンダ１３に吸入された場合は３段で、第４シリンダ１４に吸入された場合は２段で、第５シリンダ１５に吸入された場合は１段で、圧縮される。   At this time, the hydrogen in the hydrogen trailer 1 passes through any one of the on-off valves 42 to 45 from the on-off valve 21 and further through the corresponding switching valves d2 to d5, and the second to second of the variable stage compressor 6. It is sucked into any one of the fifth cylinders 12-15. Thus, when hydrogen is sucked into the second cylinder 12, it is four stages, when it is sucked into the third cylinder 13, it is three stages, when it is sucked into the fourth cylinder 14, it is two stages, and the fifth cylinder When it is inhaled into 15, it is compressed in one stage.

こうして、水素トレーラ１内の圧力が高いときは、例えば開閉弁４５又は４４が開いて、１段又は２段で圧縮され、水素トレーラ１内の水素の払い出しに伴って、水素トレーラ１内の圧力が低下すると、例えば開閉弁４３又は４２が開いて、３段又は４段で圧縮される。これにより、水素トレーラ１内の圧力変化にかかわらず、目標とする４５ＭＰａ以上の圧縮圧力が得られる。   Thus, when the pressure in the hydrogen trailer 1 is high, for example, the on-off valve 45 or 44 is opened and compressed in one or two stages, and the pressure in the hydrogen trailer 1 is discharged as the hydrogen in the hydrogen trailer 1 is discharged. Is lowered, for example, the on-off valve 43 or 42 is opened and compressed in three or four stages. Thereby, irrespective of the pressure change in the hydrogen trailer 1, the target compression pressure of 45 MPa or more is obtained.

可変段圧縮機６の第５シリンダ１５の吐出ポートｂ５より吐出された水素は、開閉弁２５を通って減圧弁２６で例えば４５ＭＰａまで減圧された後、貯蔵用容器２内に充填される。   The hydrogen discharged from the discharge port b5 of the fifth cylinder 15 of the variable stage compressor 6 is reduced to, for example, 45 MPa by the pressure reducing valve 26 through the opening / closing valve 25 and then filled into the storage container 2.

貯蔵用容器２内に貯蔵されている中圧の水素を高圧にして蓄圧器３に蓄圧する際は、制御装置３０によって、開閉弁２３、２７が開く。開閉弁２１、２５は閉じている。
また、制御装置３０によって、圧力センサ３２の信号に基づいて、貯蔵用容器２内の圧力が検出され、これに応じて、開閉弁６１〜６３のいずれか１つが選択的に開く。また、開閉弁６２又は６３が開く場合は、対応する切換弁ｄ２又はｄ３が切換えられる。 When the intermediate pressure hydrogen stored in the storage container 2 is made high and stored in the pressure accumulator 3, the control device 30 opens the on-off valves 23 and 27. The on-off valves 21 and 25 are closed.
Further, the control device 30 detects the pressure in the storage container 2 based on the signal from the pressure sensor 32, and according to this, any one of the on-off valves 61 to 63 is selectively opened. When the on-off valve 62 or 63 is opened, the corresponding switching valve d2 or d3 is switched.

このとき、貯蔵用容器２内の水素は、開閉弁２３から、開閉弁６１〜６３のいずれか１つを通り、更に対応する切換弁ｄ２、ｄ３を通って（但し開閉弁６２又は６３の選択時のみ）、可変段圧縮機６の第１〜第３シリンダ１１〜１３のいずれか１つに吸入される。これにより、水素は第１シリンダ１１に吸入された場合は５段で、第２シリンダ１２に吸入された場合は４段で、第３シリンダ１３に吸入された場合は３段で、圧縮される。   At this time, the hydrogen in the storage container 2 passes through any one of the on-off valves 61 to 63 from the on-off valve 23 and further through the corresponding switching valves d2 and d3 (however, the selection of the on-off valve 62 or 63 is selected). Only) and is sucked into one of the first to third cylinders 11 to 13 of the variable stage compressor 6. Thus, hydrogen is compressed in five stages when sucked into the first cylinder 11, in four stages when sucked into the second cylinder 12, and compressed in three stages when sucked into the third cylinder 13. .

こうして、貯蔵用容器２内の圧力が高いときは、例えば開閉弁６３が開いて、３段で圧縮され、貯蔵用容器２内の水素の払い出しに伴って、貯蔵用容器２内の圧力が次第に低下すると、例えば開閉弁６２が開いて、４段で、更には、例えば開閉弁６１が開いて、５段で圧縮される。これにより、貯蔵用容器２内の圧力変化にかかわらず、目標とする８２ＭＰａ以上の圧縮圧力が得られる。 Thus, when the pressure in the storage container 2 is high, for example, the on-off valve 63 is opened and compressed in three stages. As the hydrogen in the storage container 2 is discharged, the pressure in the storage container 2 gradually increases. When the pressure drops, for example, the on-off valve 62 is opened and compressed in four stages, and further, for example, the on-off valve 61 is opened and compressed in five stages. Thereby, the target compression pressure of 82 MPa or more is obtained irrespective of the pressure change in the storage container 2.

可変段圧縮機６の第５シリンダ１５の吐出ポートｂ５より吐出された水素は、開閉弁２７を通って減圧弁２８で例えば８２ＭＰａまで減圧された後、蓄圧器３内に充填される。
蓄圧器３内に蓄圧された高圧の水素は、適宜、ディスペンサー４により、ＦＣＶ５に差圧充填される。 The hydrogen discharged from the discharge port b5 of the fifth cylinder 15 of the variable stage compressor 6 is reduced to, for example, 82 MPa by the pressure reducing valve 28 through the on-off valve 27 and then filled in the pressure accumulator 3.
The high-pressure hydrogen accumulated in the accumulator 3 is appropriately filled into the FCV 5 by the dispenser 4.

第３実施形態によれば、水素トレーラ１から貯蔵用容器２への圧縮充填時に、水素トレーラ１内の圧力を検出し、これに応じて圧縮段数を制御することで、圧力が高いときは、圧縮段数を小さくして、圧縮コストの低下を図り、払い出しによって圧力が低下したときは、圧縮段数を大きくして、要求される充填圧力を確保することができる。
また、貯蔵用容器２から蓄圧器３への圧縮充填時に、貯蔵用容器２内の圧力を検出し、これに応じて圧縮段数を制御することで、圧力が高いときは、圧縮段数を小さくして、圧縮コストの低下を図り、払い出しによって圧力が低下したときは、圧縮段数を大きくして、要求される充填圧力を確保することができる。
また、圧縮機６の前段で減圧弁４２〜４５、７１〜７３を用いるとしても、調整用であり、大幅な減圧をするものではないので、エネルギーロスを低減することができる。 According to the third embodiment, when compressing and filling the storage container 2 from the hydrogen trailer 1, by detecting the pressure in the hydrogen trailer 1 and controlling the number of compression stages accordingly, when the pressure is high, When the number of compression stages is reduced to reduce the compression cost, and when the pressure is reduced by dispensing, the number of compression stages can be increased to ensure the required filling pressure.
In addition, the pressure in the storage container 2 is detected during compression filling from the storage container 2 to the pressure accumulator 3, and the number of compression stages is reduced when the pressure is high by controlling the number of compression stages accordingly. Thus, when the compression cost is reduced and the pressure is reduced by dispensing, the number of compression stages can be increased to ensure the required filling pressure.
Moreover, even if it uses the pressure reducing valves 42-45 and 71-73 in the front | former stage of the compressor 6, since it is for adjustment and does not perform large pressure reduction, an energy loss can be reduced.

第３実施形態（図３）では、水素トレーラ１から貯蔵用容器２への圧縮充填時には、４段〜１段に切換え可能とし、貯蔵用容器２から蓄圧器３への圧縮充填時には、５段〜３段に切換え可能としたが、これは図示の制約からであり、いずれの圧縮充填時においても５段〜１段に切換え可能としてもよい。
また、第３実施形態（図３）では、圧縮段数を小さくする際に、第１実施形態（図１）と同様、圧縮前の水素を第１圧縮段（第１シリンダ１１）より後段に吸入可能とするようにしたが、第２実施形態（図２）と同様に、圧縮後の水素を最終圧縮段（第５シリンダ１５）より前段から吐出可能とするようにしてもよい。 In the third embodiment (FIG. 3), it is possible to switch from four stages to one stage when compressing and filling the storage container 2 from the hydrogen trailer 1, and five stages when compressing and filling the storage container 2 to the pressure accumulator 3. Although it is possible to switch to ~ 3 stages, this is due to the restriction shown in the figure, and it is possible to switch from 5 stages to 1 stage at any compression filling.
Further, in the third embodiment (FIG. 3), when the number of compression stages is reduced, hydrogen before compression is sucked into the subsequent stage from the first compression stage (first cylinder 11), as in the first embodiment (FIG. 1). However, as in the second embodiment (FIG. 2), the compressed hydrogen may be discharged from the stage before the final compression stage (fifth cylinder 15).

図示の実施形態はあくまで本発明を例示するものであり、本発明は、説明した実施形態により直接的に示されるものに加え、特許請求の範囲内で当業者によりなされる各種の改良・変更を包含するものであることは言うまでもない。   The illustrated embodiments are merely examples of the present invention, and the present invention includes various improvements and modifications made by those skilled in the art within the scope of the claims in addition to those directly illustrated by the described embodiments. Needless to say, it is included.

１ 水素トレーラ（輸送用容器）
２ 貯蔵用容器
３ 蓄圧器
４ ディスペンサー
５ 燃料電池自動車（ＦＣＶ）
６ 可変段圧縮機
１０ クランク式回転駆動部
１１〜１５ シリンダ
ａ１〜ａ５ 吸入ポート
ｂ１〜ｂ５ 吐出ポート
ｃ１〜ｃ４ 連通路
ｄ２〜ｄ５ 切換弁
ｅ２〜ｅ５ ４段〜１段用吸入通路
ｆ４ 切換弁
ｇ４ ４段用吐出通路
２０ カップリング
２１、２３、２５、２７ 開閉弁
２２、２４、２６、２８ 減圧弁
３０ 制御装置
３１、３２ 圧力センサ
４２〜４５、６２〜６３ 開閉弁
５２〜５５、７１〜７３ 減圧弁 1 Hydrogen trailer (transport container)
2 Storage container 3 Accumulator 4 Dispenser 5 Fuel cell vehicle (FCV)
6 Variable Stage Compressor 10 Crank Type Rotation Drive Units 11-15 Cylinders a1-a5 Suction Ports b1-b5 Discharge Ports c1-c4 Communication Paths d2-d5 Switching Valves e2-e5 Four-stage discharge passage 20 Coupling 21, 23, 25, 27 On-off valve 22, 24, 26, 28 Pressure reducing valve 30 Control device 31, 32 Pressure sensors 42-45, 62-63 On-off valves 52-55, 71-73 Pressure reducing valve

Claims (5)

水素輸送用容器から供給される水素を圧縮して水素貯蔵用容器に充填する第１の圧縮手段と、前記水素貯蔵用容器から供給される水素を圧縮してディスペンサー用の蓄圧器に充填する第２の圧縮手段と、を備える水素ステーションであって、
前記第１及び第２の圧縮手段は、
複数の圧縮段を有すると共に圧縮段数が可変な単一の可変段圧縮機と、
前記可変段圧縮機を前記第１の圧縮手段として使用するように、前記可変段圧縮機の入口側に前記水素輸送用容器を配管接続し、前記可変段圧縮機の出口側に前記水素貯蔵用容器を配管接続する第１の接続形態、及び、前記可変段圧縮機を前記第２の圧縮手段として使用するように、前記可変段圧縮機の入口側に前記水素貯蔵用容器を配管接続し、前記可変段圧縮機の出口側に前記蓄圧器を配管接続する第２の接続形態、を選択的に切換え可能とする接続切換装置と、
前記水素輸送用容器から前記可変段圧縮機への入口配管、及び、前記水素貯蔵用容器から前記可変段圧縮機への入口配管のそれぞれに設けられ、前記可変段圧縮機の入口側要求圧力に応じて減圧圧力が設定された減圧弁と、
を含んで構成され、
前記第１の接続形態と前記第２の接続形態とで、前記可変段圧縮機の圧縮段数を変化させ、前記第１の接続形態では、前記第２の接続形態と比べ、前記可変段圧縮機の圧縮段数を小さくすることを特徴とする、水素ステーション。 A first compression means for compressing hydrogen supplied from a hydrogen transport container and filling the hydrogen storage container; and a first compression means for compressing hydrogen supplied from the hydrogen storage container and filling the dispenser pressure accumulator. A hydrogen station comprising two compression means,
The first and second compression means include
A single variable stage compressor having a plurality of compression stages and having a variable number of compression stages;
In order to use the variable stage compressor as the first compression means, the hydrogen transport container is connected to the inlet side of the variable stage compressor, and the hydrogen storage container is connected to the outlet side of the variable stage compressor. A first connection form for connecting the pipe to the container, and the hydrogen storage container is connected to the inlet side of the variable stage compressor so as to use the variable stage compressor as the second compression means; A connection switching device capable of selectively switching the second connection mode in which the pressure accumulator is pipe-connected to the outlet side of the variable stage compressor;
Provided in each of the inlet piping from the hydrogen transport container to the variable stage compressor and the inlet piping from the hydrogen storage container to the variable stage compressor, the required pressure on the inlet side of the variable stage compressor A pressure reducing valve with a pressure reducing pressure set accordingly,
Comprising
The number of compression stages of the variable stage compressor is changed between the first connection form and the second connection form . In the first connection form, the variable stage compressor is compared with the second connection form. A hydrogen station characterized in that the number of compression stages is reduced . 水素輸送用容器から供給される水素を圧縮して水素貯蔵用容器に充填する第１の圧縮手段と、前記水素貯蔵用容器から供給される水素を圧縮してディスペンサー用の蓄圧器に充填する第２の圧縮手段と、を備える水素ステーションであって、
前記第１及び第２の圧縮手段は、
複数の圧縮段を有すると共に圧縮段数が可変な単一の可変段圧縮機と、
前記可変段圧縮機を前記第１の圧縮手段として使用するように、前記可変段圧縮機の入口側に前記水素輸送用容器を配管接続し、前記可変段圧縮機の出口側に前記水素貯蔵用容器を配管接続する第１の接続形態、及び、前記可変段圧縮機を前記第２の圧縮手段として使用するように、前記可変段圧縮機の入口側に前記水素貯蔵用容器を配管接続し、前記可変段圧縮機の出口側に前記蓄圧器を配管接続する第２の接続形態、を選択的に切換え可能とする接続切換装置と、
前記水素輸送用容器内の圧力を検出する第１の圧力検出装置と、
前記水素貯蔵用容器内の圧力を検出する第２の圧力検出装置と、
前記水素輸送用容器内の圧力に応じて、前記第１の圧縮手段として使用するときの前記可変段圧縮機の圧縮段数を変化させる第１の圧縮段数制御装置と、
前記水素貯蔵用容器内の圧力に応じて、前記第２の圧縮手段として使用するときの前記可変段圧縮機の圧縮段数を変化させる第２の圧縮段数制御装置と、
を含んで構成されることを特徴とする、水素ステーション。 A first compression means for compressing hydrogen supplied from a hydrogen transport container and filling the hydrogen storage container; and a first compression means for compressing hydrogen supplied from the hydrogen storage container and filling the dispenser pressure accumulator. A hydrogen station comprising two compression means,
The first and second compression means include
A single variable stage compressor having a plurality of compression stages and having a variable number of compression stages;
In order to use the variable stage compressor as the first compression means, the hydrogen transport container is connected to the inlet side of the variable stage compressor, and the hydrogen storage container is connected to the outlet side of the variable stage compressor. A first connection form for connecting the pipe to the container, and the hydrogen storage container is connected to the inlet side of the variable stage compressor so as to use the variable stage compressor as the second compression means; A connection switching device capable of selectively switching the second connection mode in which the pressure accumulator is pipe-connected to the outlet side of the variable stage compressor;
A first pressure detection device for detecting the pressure in the hydrogen transport container;
A second pressure detection device for detecting the pressure in the hydrogen storage container;
A first compression stage number control device that changes the number of compression stages of the variable stage compressor when used as the first compression means in accordance with the pressure in the hydrogen transport container;
A second compression stage number control device that changes the number of compression stages of the variable stage compressor when used as the second compression means in accordance with the pressure in the hydrogen storage container;
A hydrogen station comprising: 前記可変段圧縮機は、圧縮前の水素を第１圧縮段又は第１圧縮段より後段に選択的に吸入可能に構成したことを特徴とする、請求項１又は請求項２記載の水素ステーション。 3. The hydrogen station according to claim 1, wherein the variable stage compressor is configured to be able to selectively suck hydrogen before compression into the first compression stage or the stage after the first compression stage. 4. 前記可変段圧縮機は、圧縮後の水素を最終圧縮段又は最終圧縮段より前段から選択的に吐出可能に構成したことを特徴とする、請求項１又は請求項２記載の水素ステーション。 3. The hydrogen station according to claim 1, wherein the variable stage compressor is configured to be able to selectively discharge compressed hydrogen from a final compression stage or a stage before the final compression stage. 4. 前記可変段圧縮機から前記水素貯蔵用容器への出口配管、及び、前記可変段圧縮機から前記蓄圧器への出口配管のそれぞれに、前記水素貯蔵用容器及び前記蓄圧器の要求圧力に応じて減圧圧力が設定された減圧弁を有することを特徴とする、請求項１〜請求項４のいずれか１つに記載の水素ステーション。 Depending on the required pressure of the hydrogen storage container and the pressure accumulator to the outlet pipe from the variable stage compressor to the hydrogen storage container and the outlet pipe from the variable stage compressor to the pressure accumulator, respectively. The hydrogen station according to any one of claims 1 to 4 , further comprising a pressure reducing valve in which a reduced pressure is set.
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