JP2016188675A - Hydrogen gas compression and storage device and hydrogen gas compression and storage method - Google Patents

Hydrogen gas compression and storage device and hydrogen gas compression and storage method Download PDF

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JP2016188675A
JP2016188675A JP2015069097A JP2015069097A JP2016188675A JP 2016188675 A JP2016188675 A JP 2016188675A JP 2015069097 A JP2015069097 A JP 2015069097A JP 2015069097 A JP2015069097 A JP 2015069097A JP 2016188675 A JP2016188675 A JP 2016188675A
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勝之助 島田
Katsunosuke Shimada
勝之助 島田
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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
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • 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
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Abstract

PROBLEM TO BE SOLVED: To provide a hydrogen gas compression and storage device and a hydrogen gas compression and storage method which enable hydrogen gas to be compressed and stored at home.SOLUTION: A hydrogen gas compression and storage device comprises: a hydrogen gas supply unit; two hydrogen gas compression towers; a fluid pump; and a hydrogen gas storage tank. Each hydrogen gas compression tower has a movable partition plate to separate an interior thereof into a hydrogen gas region and a fluid region with volumes of the hydrogen gas region and the liquid region fluctuated with a move of the partition plate. Each hydrogen gas compression tower is also connected to the hydrogen gas supply unit, a suction side and a delivery side of the fluid pump and the hydrogen gas storage tank. The hydrogen gas compression and storage device also has a switch valve to allow only either one of the hydrogen gas compression towers to be communicated. A hydrogen gas compression and storage method uses the hydrogen gas compression and storage device.SELECTED DRAWING: Figure 1

Description

本発明は、定置型燃料電池や燃料電池車両に水素ガスを供給可能な水素ガス圧縮貯蔵装置及び水素ガス圧縮貯蔵方法に関する。   The present invention relates to a hydrogen gas compression storage device and a hydrogen gas compression storage method capable of supplying hydrogen gas to a stationary fuel cell or a fuel cell vehicle.

最近、家庭用電源として定置型燃料電池を設置するケースが増えており、また燃料電池自動車の実用化も図られている。これらの燃料電池は水素ガスを燃料としていることから、家庭で水素ガスを製造・貯蔵する装置への関心が高まっている。   Recently, there have been an increasing number of cases where stationary fuel cells are installed as household power sources, and fuel cell vehicles have been put into practical use. Since these fuel cells use hydrogen gas as a fuel, there is an increasing interest in devices that produce and store hydrogen gas at home.

特許文献１には、以下の発明が記載されている。
１．含水素燃料を改質して改質ガスを得る改質装置と、前記改質ガスから不要物を除去して高純度の水素ガスを精製する水素精製装置と、前記水素ガスを貯蔵するとともに、定置型燃料電池に前記水素ガスを供給するための第１水素貯蔵装置と、前記水素ガスを貯蔵するとともに、燃料電池車両に前記水素ガスを供給するための第２水素貯蔵装置と、前記水素ガスの供給先を前記第１水素貯蔵部と前記第２水素貯蔵部とに切り替え制御する制御装置と、を備えることを特徴とする水素ガス製造発電システム。
２．含水素燃料を改質して改質ガスを得る改質装置と、前記改質ガスから不要物を除去して高純度の水素ガスを精製する水素精製装置と、前記水素ガスを貯蔵するとともに、定置型燃料電池に前記水素ガスを供給するための第１水素貯蔵装置と、前記水素ガスを貯蔵するとともに、燃料電池車両に前記水素ガスを供給するための第２水素貯蔵装置とを備える水素ガス製造発電システムの運転方法であって、前記水素精製装置で精製される前記水素ガスの濃度を検出する工程と、前記検出された水素濃度が所定値未満である際に、前記第１水素貯蔵装置に前記水素ガスを供給する工程と、前記検出された水素濃度が所定値以上である際に、前記第２水素貯蔵装置に前記水素ガスを供給する工程と、を有することを特徴とする水素ガス製造発電システムの運転方法。 Patent Document 1 describes the following invention.
1. A reformer for reforming the hydrogen-containing fuel to obtain a reformed gas, a hydrogen purifier for purifying high-purity hydrogen gas by removing unnecessary substances from the reformed gas, and storing the hydrogen gas, A first hydrogen storage device for supplying the hydrogen gas to a stationary fuel cell; a second hydrogen storage device for storing the hydrogen gas and supplying the hydrogen gas to a fuel cell vehicle; and the hydrogen gas And a control device that controls switching between the first hydrogen storage unit and the second hydrogen storage unit.
2. A reformer for reforming the hydrogen-containing fuel to obtain a reformed gas, a hydrogen purifier for purifying high-purity hydrogen gas by removing unnecessary substances from the reformed gas, and storing the hydrogen gas, Hydrogen gas comprising a first hydrogen storage device for supplying the hydrogen gas to a stationary fuel cell, and a second hydrogen storage device for storing the hydrogen gas and supplying the hydrogen gas to a fuel cell vehicle A method of operating a production power generation system, the step of detecting the concentration of the hydrogen gas purified by the hydrogen purifier, and the first hydrogen storage device when the detected hydrogen concentration is less than a predetermined value Supplying the hydrogen gas to the second hydrogen storage device when the detected hydrogen concentration is equal to or higher than a predetermined value. Manufacturing power generation system The method of operation.

特開２００５−２９３９５９号公報JP 2005-293959 A

燃料電池自動車には、一回の水素ガス補給で走行できる距離を確保するために水素ガスを高圧で充填する高圧タンクが設けられている。この高圧タンクに水素ガスを充填するためには、水素ガス貯蔵タンクに充填されている水素ガスを高圧に維持しなければならない。また、水素ガスを貯蔵するための装置を家庭に設置することを考慮すると、水素ガス貯蔵タンクの大きさをできるだけ小さくすべきであり、その意味でも水素ガス貯蔵タンクに充填されている水素ガスを高圧に維持しなければならない。しかし、そのような高圧を実現するための水素ガス圧縮装置自体が大きくなってしまい、一般の家庭に設置することは難しいという問題があった。   A fuel cell vehicle is provided with a high-pressure tank that is filled with hydrogen gas at a high pressure in order to secure a distance that can be traveled with a single replenishment of hydrogen gas. In order to fill the high pressure tank with hydrogen gas, the hydrogen gas filled in the hydrogen gas storage tank must be maintained at a high pressure. In consideration of installing a device for storing hydrogen gas in the home, the size of the hydrogen gas storage tank should be as small as possible. In this sense, the hydrogen gas filled in the hydrogen gas storage tank should be reduced. Must be maintained at high pressure. However, the hydrogen gas compression device itself for realizing such a high pressure becomes large, and there is a problem that it is difficult to install in a general household.

そこで、本発明は、家庭でも水素ガスを圧縮・貯蔵可能な水素ガス圧縮貯蔵装置及び水素ガス圧縮貯蔵方法を提供することを目的とする。   Then, an object of this invention is to provide the hydrogen gas compression storage apparatus and hydrogen gas compression storage method which can compress and store hydrogen gas also at home.

本発明に係る水素ガス圧縮貯蔵装置は、水素ガス供給装置と、水素ガス圧縮塔の２つと、液体ポンプと、水素ガス貯蔵タンクとを有し、
前記水素ガス圧縮塔は、内部を水素ガス領域と液体領域に仕切る可動式の仕切り板を有し、前記仕切り板が移動することで前記水素ガス領域と前記液体領域の容積が変動するものであり、
前記水素ガス圧縮塔の前記水素ガス領域には、
前記水素ガス供給装置から前記水素ガス領域に水素ガスを供給するための水素ガス供給ラインが接続されるとともに、いずれか一方の前記水素ガス圧縮塔の水素ガス領域にのみ水素ガスが供給されるように切り替え可能な水素ガス供給バルブが接続されており、かつ
前記水素ガス領域から水素ガスを排出して前記水素ガス貯蔵タンクに水素ガスを供給するための水素ガス排出ラインが接続されるとともに、いずれか一方の前記水素ガス圧縮塔の水素ガス領域からのみ水素ガスが排出されるように切り替え可能な水素ガス排出バルブが接続されており、
前記水素ガス圧縮塔の前記液体領域には、
前記液体領域から液体を排出して前記液体ポンプのサクション側に液体を供給するための液体排出ラインが接続されるとともに、いずれか一方の前記水素ガス圧縮塔の液体領域からのみ液体が排出されるように切り替え可能な液体排出バルブが接続されており、かつ
前記液体ポンプのデリバリ側から前記液体領域に液体を供給するための液体供給ラインが接続されるとともに、いずれか一方の前記水素ガス圧縮塔の液体領域にのみ液体が供給されるように切り替え可能な液体供給バルブが接続されている。 The hydrogen gas compression storage device according to the present invention includes a hydrogen gas supply device, two hydrogen gas compression towers, a liquid pump, and a hydrogen gas storage tank.
The hydrogen gas compression tower has a movable partition plate that divides the interior into a hydrogen gas region and a liquid region, and the volume of the hydrogen gas region and the liquid region varies as the partition plate moves. ,
In the hydrogen gas region of the hydrogen gas compression tower,
A hydrogen gas supply line for supplying hydrogen gas from the hydrogen gas supply device to the hydrogen gas region is connected, and hydrogen gas is supplied only to the hydrogen gas region of one of the hydrogen gas compression towers. A hydrogen gas supply valve that can be switched to and connected to a hydrogen gas discharge line for discharging the hydrogen gas from the hydrogen gas region and supplying the hydrogen gas to the hydrogen gas storage tank. A switchable hydrogen gas discharge valve is connected so that hydrogen gas is discharged only from the hydrogen gas region of one of the hydrogen gas compression towers,
In the liquid region of the hydrogen gas compression tower,
A liquid discharge line for discharging the liquid from the liquid region and supplying the liquid to the suction side of the liquid pump is connected, and the liquid is discharged only from the liquid region of one of the hydrogen gas compression towers. A switchable liquid discharge valve is connected, and a liquid supply line for supplying liquid from the delivery side of the liquid pump to the liquid region is connected, and any one of the hydrogen gas compression towers A switchable liquid supply valve is connected so that the liquid is supplied only to the liquid region.

本発明に係る水素ガス圧縮貯蔵方法は、上記の水素ガス圧縮貯蔵装置を用いて水素ガスを圧縮・貯蔵する方法であって、
（ａ）水素ガス供給装置から水素ガス供給ラインを通じて一方の水素ガス圧縮塔Ａの水素ガス領域に水素ガスが供給されるとともに、前記水素ガス圧縮塔Ａの液体領域から液体が排出され液体排出ラインを通じて液体ポンプのサクション側に供給され、かつ液体ポンプのデリバリ側から液体供給ラインを通じて他方の水素ガス圧縮塔Ｂの液体領域に液体が供給されるとともに、前記水素ガス圧縮塔Ｂの水素ガス領域から水素ガスが排出され水素ガス排出ラインを通じて水素ガス貯蔵タンクに供給される工程と、
（ｂ）前記水素ガス供給バルブが水素ガス圧縮塔Ａ側から水素ガス圧縮塔Ｂ側に切り替わるとともに、前記水素ガス排出バルブが水素ガス圧縮塔Ｂ側から水素ガス圧縮塔Ａ側に切り替わり、かつ前記液体供給バルブが水素ガス圧縮塔Ｂ側から水素ガス圧縮塔Ａ側に切り替わるとともに、前記液体排出バルブが水素ガス圧縮塔Ａ側から水素ガス圧縮塔Ｂ側に切り替わる工程と、
（ｃ）水素ガス供給装置から水素ガス供給ラインを通じて水素ガス圧縮塔Ｂの水素ガス領域に水素ガスが供給されるとともに、前記水素ガス圧縮塔Ｂの液体領域から液体が排出され液体排出ラインを通じて液体ポンプのサクション側に供給され、かつ液体ポンプのデリバリ側から液体供給ラインを通じて水素ガス圧縮塔Ａの液体領域に液体が供給されるとともに、前記水素ガス圧縮塔Ａの水素ガス領域から水素ガスが排出され水素ガス排出ラインを通じて水素ガス貯蔵タンクに供給される工程と、
（ｄ）前記水素ガス供給バルブが水素ガス圧縮塔Ｂ側から水素ガス圧縮塔Ａ側に切り替わるとともに、前記水素ガス排出バルブが水素ガス圧縮塔Ａ側から水素ガス圧縮塔Ｂ側に切り替わり、かつ前記液体供給バルブが水素ガス圧縮塔Ａ側から水素ガス圧縮塔Ｂ側に切り替わるとともに、前記液体排出バルブが水素ガス圧縮塔Ｂ側から水素ガス圧縮塔Ａ側に切り替わる工程と
を有する。 A hydrogen gas compression storage method according to the present invention is a method for compressing and storing hydrogen gas using the above hydrogen gas compression storage device,
(A) Hydrogen gas is supplied from the hydrogen gas supply device to the hydrogen gas region of one of the hydrogen gas compression towers A through the hydrogen gas supply line, and the liquid is discharged from the liquid region of the hydrogen gas compression tower A. And the liquid is supplied from the delivery side of the liquid pump to the liquid region of the other hydrogen gas compression tower B through the liquid supply line, and from the hydrogen gas region of the hydrogen gas compression tower B. A process in which hydrogen gas is discharged and supplied to a hydrogen gas storage tank through a hydrogen gas discharge line;
(B) the hydrogen gas supply valve is switched from the hydrogen gas compression tower A side to the hydrogen gas compression tower B side, and the hydrogen gas discharge valve is switched from the hydrogen gas compression tower B side to the hydrogen gas compression tower A side, and The liquid supply valve is switched from the hydrogen gas compression tower B side to the hydrogen gas compression tower A side, and the liquid discharge valve is switched from the hydrogen gas compression tower A side to the hydrogen gas compression tower B side;
(C) Hydrogen gas is supplied from the hydrogen gas supply device to the hydrogen gas region of the hydrogen gas compression tower B through the hydrogen gas supply line, and liquid is discharged from the liquid region of the hydrogen gas compression tower B and liquid is supplied through the liquid discharge line. The liquid is supplied to the suction side of the pump, and the liquid is supplied from the delivery side of the liquid pump to the liquid region of the hydrogen gas compression tower A through the liquid supply line, and the hydrogen gas is discharged from the hydrogen gas region of the hydrogen gas compression tower A And a process of supplying the hydrogen gas storage tank through the hydrogen gas discharge line;
(D) The hydrogen gas supply valve is switched from the hydrogen gas compression tower B side to the hydrogen gas compression tower A side, and the hydrogen gas discharge valve is switched from the hydrogen gas compression tower A side to the hydrogen gas compression tower B side, and The liquid supply valve is switched from the hydrogen gas compression tower A side to the hydrogen gas compression tower B side, and the liquid discharge valve is switched from the hydrogen gas compression tower B side to the hydrogen gas compression tower A side.

本発明によれば、家庭でも水素ガスを圧縮・貯蔵可能な水素ガス圧縮貯蔵装置及び水素ガス圧縮貯蔵方法を提供できる。   ADVANTAGE OF THE INVENTION According to this invention, the hydrogen gas compression storage apparatus and hydrogen gas compression storage method which can compress and store hydrogen gas at home can be provided.

本発明に係る水素ガス圧縮貯蔵装置の構成例を示す図である。It is a figure which shows the structural example of the hydrogen gas compression storage apparatus which concerns on this invention. 本発明の一実施形態に係る水素ガス圧縮貯蔵装置の運転時における水素ガス圧縮塔の状態を示す図である。It is a figure which shows the state of the hydrogen gas compression tower at the time of operation | movement of the hydrogen gas compression storage apparatus which concerns on one Embodiment of this invention. 本発明の他の一実施形態に係る水素ガス圧縮貯蔵装置の運転時における水素ガス圧縮塔の状態を示す図である。It is a figure which shows the state of the hydrogen gas compression tower at the time of operation | movement of the hydrogen gas compression storage apparatus which concerns on other one Embodiment of this invention.

本発明に係る水素ガス圧縮貯蔵装置の構成例を図１に示す。図１の水素ガス圧縮貯蔵装置は、水素ガス供給装置１と、２つの水素ガス圧縮塔２ａ・２ｂと、液体ポンプ６と、水素ガス貯蔵タンク７ａ・７ｂとを有している。   A configuration example of a hydrogen gas compression storage device according to the present invention is shown in FIG. The hydrogen gas compression storage device of FIG. 1 includes a hydrogen gas supply device 1, two hydrogen gas compression towers 2a and 2b, a liquid pump 6, and hydrogen gas storage tanks 7a and 7b.

水素ガス供給装置１は、水素ガスを供給できるものであればよく、水素ガス発生装置でもよく、水素ガスボンベでもよい。水素ガス発生装置としては、例えば、水の電気分解装置を用いることができる。水の電気分解装置では、通常、酸性水溶液、アルカリ性水溶液、又は中性水溶液を用いるが、電気分解されるのは水であるので、一般の家庭で手軽に補給することができる。   The hydrogen gas supply device 1 may be any device that can supply hydrogen gas, and may be a hydrogen gas generator or a hydrogen gas cylinder. As the hydrogen gas generator, for example, a water electrolyzer can be used. In an electrolysis apparatus for water, an acidic aqueous solution, an alkaline aqueous solution, or a neutral aqueous solution is usually used. However, since water is electrolyzed, it can be easily replenished in a general household.

水の電気分解装置には、太陽光発電装置が電気を供給可能に接続されていることが好ましい。このように、住宅の屋根等に設置された太陽光パネルに照射された太陽の光エネルギーを利用して水を電気分解することができる。太陽光発電装置の発電能力は、例えば３〜４ｋＷ程度で運転することができる。   It is preferable that a solar power generator is connected to the water electrolyzer so as to supply electricity. Thus, water can be electrolyzed using the light energy of the sun irradiated to the solar panel installed on the roof of a house. The power generation capacity of the solar power generation device can be operated at about 3 to 4 kW, for example.

水素ガス圧縮塔２ａ・２ｂは、それぞれ、内部を水素ガス領域４ａ・４ｂと液体領域５ａ・５ｂに仕切る可動式の仕切り板３ａ・３ｂを有している。そして、仕切り板３ａ・３ｂが移動することで、水素ガス領域４ａ・４ｂと液体領域５ａ・５ｂの容積が変動するようになっている。仕切り板３ａ・３ｂは、水素ガス圧縮塔２ａ・２ｂの内部を水素ガス領域４ａ・４ｂと液体領域５ａ・５ｂとに区分けし、かつ水素ガス領域４ａ・４ｂと液体領域５ａ・５ｂの容積が変動するように可動な状態であればよく、必ずしも水素ガス領域４ａ・４ｂと液体領域５ａ・５ｂを完全に仕切るものである必要はない。仕切り板３ａ・３ｂは、通常、液体領域５ａ・５ｂに充填する液体（水など）に浮く処理をした樹脂製であるが、他の材質でも構わない。   The hydrogen gas compression towers 2a and 2b have movable partition plates 3a and 3b that partition the interior into hydrogen gas regions 4a and 4b and liquid regions 5a and 5b, respectively. As the partition plates 3a and 3b move, the volumes of the hydrogen gas regions 4a and 4b and the liquid regions 5a and 5b change. The partition plates 3a and 3b divide the interior of the hydrogen gas compression towers 2a and 2b into hydrogen gas regions 4a and 4b and liquid regions 5a and 5b, and the volumes of the hydrogen gas regions 4a and 4b and the liquid regions 5a and 5b It may be in a movable state so as to fluctuate, and the hydrogen gas regions 4a and 4b and the liquid regions 5a and 5b are not necessarily completely separated. The partition plates 3a and 3b are usually made of a resin that is floated on a liquid (water or the like) that fills the liquid regions 5a and 5b, but other materials may be used.

水素ガス圧縮塔２ａ・２ｂの水素ガス領域４ａ・４ｂには、水素ガス領域４ａ・４ｂに水素ガスを供給するための水素ガス供給ライン１１・１１ａ・１１ｂが接続されている。そして、図１の装置では、１本の水素ガス供給ライン１１から２本の水素ガス供給ライン１１ａ・１１ｂに分岐する箇所に、水素ガス供給バルブ２１が設置されている。水素ガス供給バルブ２１は、上流側の水素ガス供給ライン１１と、下流側の水素ガス供給ライン１１ａ・１１ｂのいずれか一方のみとを連通させるものであり、下流側の水素ガス供給ライン１１ａ・１１ｂのどちらと連通させるか切り替え可能なものである。こうすることで、いずれか一方の水素ガス圧縮塔の水素ガス領域にのみ水素ガスが供給される構造となる。   Hydrogen gas supply lines 11, 11a, 11b for supplying hydrogen gas to the hydrogen gas regions 4a, 4b are connected to the hydrogen gas regions 4a, 4b of the hydrogen gas compression towers 2a, 2b. In the apparatus of FIG. 1, a hydrogen gas supply valve 21 is installed at a location where one hydrogen gas supply line 11 branches into two hydrogen gas supply lines 11a and 11b. The hydrogen gas supply valve 21 communicates only one of the upstream hydrogen gas supply line 11 and the downstream hydrogen gas supply lines 11a and 11b, and the downstream hydrogen gas supply lines 11a and 11b. It is possible to switch between which one to communicate with. By doing so, the hydrogen gas is supplied only to the hydrogen gas region of one of the hydrogen gas compression towers.

そして、図１の装置のように、水素ガス供給ライン１１が水素ガス供給装置１に接続される。こうすることで、水素ガス供給装置１から供給される水素ガスが、水素ガス供給ライン１１及び水素ガス供給ライン１１ａ・１１ｂを通じて、水素ガス圧縮塔２ａ・２ｂの水素ガス領域４ａ・４ｂに供給される構造となる。   And the hydrogen gas supply line 11 is connected to the hydrogen gas supply apparatus 1 like the apparatus of FIG. By doing so, the hydrogen gas supplied from the hydrogen gas supply device 1 is supplied to the hydrogen gas regions 4a and 4b of the hydrogen gas compression towers 2a and 2b through the hydrogen gas supply line 11 and the hydrogen gas supply lines 11a and 11b. It becomes a structure.

また、水素ガス圧縮塔２ａ・２ｂの水素ガス領域４ａ・４ｂには、水素ガス領域４ａ・４ｂから水素ガスを排出するための水素ガス排出ライン１２・１２ａ・１２ｂが接続されている。そして、図１の装置では、２本の水素ガス排出ライン１２ａ・１２ｂが１本の水素ガス排出ライン１２に合流する箇所に、水素ガス排出バルブ２２が設置されている。水素ガス排出バルブ２２は、上流側の水素ガス排出ライン１２ａ・１２ｂのいずれか一方のみと、下流側の水素ガス排出ライン１２とを連通させるものであり、上流側の水素ガス排出ライン１２ａ・１２ｂのどちらと連通させるか切り替え可能なものである。こうすることで、いずれか一方の水素ガス圧縮塔の水素ガス領域からのみ水素ガスが排出される構造となる。   Also, hydrogen gas discharge lines 12, 12 a, and 12 b for discharging hydrogen gas from the hydrogen gas regions 4 a and 4 b are connected to the hydrogen gas regions 4 a and 4 b of the hydrogen gas compression towers 2 a and 2 b. In the apparatus of FIG. 1, a hydrogen gas discharge valve 22 is installed at a location where the two hydrogen gas discharge lines 12 a and 12 b merge with the single hydrogen gas discharge line 12. The hydrogen gas discharge valve 22 communicates only one of the upstream hydrogen gas discharge lines 12a and 12b with the downstream hydrogen gas discharge line 12, and the upstream hydrogen gas discharge lines 12a and 12b. It is possible to switch between which one to communicate with. By doing so, the hydrogen gas is discharged only from the hydrogen gas region of one of the hydrogen gas compression towers.

そして、図１の装置のように、水素ガス排出ライン１２が水素ガス貯蔵タンク７ａ・７ｂに接続される。こうすることで、水素ガス圧縮塔２ａ・２ｂの水素ガス領域４ａ・４ｂから排出される水素ガスが、水素ガス排出ライン１２ａ・１２ｂ及び水素ガス排出ライン１２を通じて、水素ガス貯蔵タンク７ａ・７ｂに供給される構造となる。   As in the apparatus of FIG. 1, the hydrogen gas discharge line 12 is connected to the hydrogen gas storage tanks 7a and 7b. By doing so, the hydrogen gas discharged from the hydrogen gas regions 4a and 4b of the hydrogen gas compression towers 2a and 2b passes through the hydrogen gas discharge lines 12a and 12b and the hydrogen gas discharge line 12 to the hydrogen gas storage tanks 7a and 7b. The structure is supplied.

水素ガス圧縮塔２ａ・２ｂの液体領域５ａ・５ｂには、液体領域５ａ・５ｂから液体を排出するための液体排出ライン１３・１３ａ・１３ｂが接続されている。そして、図１の装置では、２本の液体排出ライン１３ａ・１３ｂが１本の液体排出ライン１３に合流する箇所に、液体排出バルブ２３が設置されている。液体排出バルブ２３は、上流側の液体排出ライン１３ａ・１３ｂのいずれか一方のみと、下流側の液体排出ライン１３とを連通させるものであり、上流側の液体排出ライン１３ａ・１３ｂのどちらと連通させるか切り替え可能なものである。こうすることで、いずれか一方の水素ガス圧縮塔の液体領域からのみ液体が排出される構造となる。   Liquid discharge lines 13, 13a and 13b for discharging liquid from the liquid regions 5a and 5b are connected to the liquid regions 5a and 5b of the hydrogen gas compression towers 2a and 2b. In the apparatus of FIG. 1, a liquid discharge valve 23 is installed at a location where the two liquid discharge lines 13 a and 13 b merge into the single liquid discharge line 13. The liquid discharge valve 23 communicates only one of the upstream liquid discharge lines 13a and 13b with the downstream liquid discharge line 13, and communicates with either of the upstream liquid discharge lines 13a and 13b. It can be switched. By doing so, the liquid is discharged only from the liquid region of one of the hydrogen gas compression towers.

そして、図１の装置のように、液体排出ライン１３が液体ポンプ６のサクション側に接続される。こうすることで、水素ガス圧縮塔２ａ・２ｂの液体領域５ａ・５ｂから排出される液体が、液体排出ライン１３ａ・１３ｂ及び液体排出ライン１３を通じて、液体ポンプ６のサクション側に供給される構造となる。   And the liquid discharge line 13 is connected to the suction side of the liquid pump 6 like the apparatus of FIG. By doing so, the liquid discharged from the liquid regions 5a and 5b of the hydrogen gas compression towers 2a and 2b is supplied to the suction side of the liquid pump 6 through the liquid discharge lines 13a and 13b and the liquid discharge line 13. Become.

また、水素ガス圧縮塔２ａ・２ｂの液体領域５ａ・５ｂには、液体領域５ａ・５ｂに液体を供給するための液体供給ライン１４・１４ａ・１４ｂが接続されている。そして、図１の装置では、１本の液体供給ライン１４から２本の液体供給ライン１４ａ・１４ｂに分岐する箇所に、液体供給バルブ２４が設置されている。液体供給バルブ２４は、上流側の液体供給ライン１４と、下流側の液体供給ライン１４ａ・１４ｂのいずれか一方のみとを連通させるものであり、下流側の液体供給ライン１４ａ・１４ｂのどちらと連通させるか切り替え可能なものである。こうすることで、いずれか一方の水素ガス圧縮塔の液体領域にのみ液体が供給される構造となる。   Liquid supply lines 14, 14 a, and 14 b for supplying liquid to the liquid regions 5 a and 5 b are connected to the liquid regions 5 a and 5 b of the hydrogen gas compression towers 2 a and 2 b. In the apparatus of FIG. 1, a liquid supply valve 24 is installed at a location where one liquid supply line 14 branches into two liquid supply lines 14a and 14b. The liquid supply valve 24 connects the upstream liquid supply line 14 and only one of the downstream liquid supply lines 14a and 14b, and communicates with either of the downstream liquid supply lines 14a and 14b. It can be switched. By doing so, the liquid is supplied only to the liquid region of one of the hydrogen gas compression towers.

そして、図１の装置のように、液体供給ライン１４が液体ポンプ６のデリバリ側に接続される。こうすることで、液体ポンプ６のデリバリ側から供給される液体が、液体供給ライン１４及び液体供給ライン１４ａ・１４ｂを通じて、水素ガス圧縮塔２ａ・２ｂの液体領域５ａ・５ｂに供給される構造となる。   And the liquid supply line 14 is connected to the delivery side of the liquid pump 6 like the apparatus of FIG. By doing so, the liquid supplied from the delivery side of the liquid pump 6 is supplied to the liquid regions 5a and 5b of the hydrogen gas compression towers 2a and 2b through the liquid supply line 14 and the liquid supply lines 14a and 14b. Become.

なお、図１の装置では、水素ガス供給ライン１１ａ・１１ｂ及び水素ガス排出ライン１２ａ・１２ｂ、並びに液体排出ライン１３ａ・１３ｂ及び液体供給ライン１４ａ・１４ｂが、それぞれ独立した配管として水素ガス圧縮塔２ａ・２ｂに接続されているが、両方の機能を有する配管を介して水素ガス圧縮塔２ａ・２ｂに接続されていても構わない。例えば、図３（ａ）に示すように、水素ガス供給ライン１１ａ・１１ｂ及び水素ガス排出ライン１２ａ・１２ｂを共通化させた水素ガス供給排出ライン１５ａ・１５ｂ、並びに液体排出ライン１３ａ・１３ｂ及び液体供給ライン１４ａ・１４ｂを共通化させた液体供給排出ライン１６ａ・１６ｂが、それぞれ水素ガス圧縮塔２ａ・２ｂに接続されている構成としてもよい。   1, the hydrogen gas supply lines 11a and 11b and the hydrogen gas discharge lines 12a and 12b, and the liquid discharge lines 13a and 13b and the liquid supply lines 14a and 14b are provided as independent pipes, respectively. Although connected to 2b, it may be connected to the hydrogen gas compression towers 2a and 2b via piping having both functions. For example, as shown in FIG. 3 (a), hydrogen gas supply lines 11a and 11b and hydrogen gas discharge lines 12a and 12b, hydrogen gas supply and discharge lines 15a and 15b, and liquid discharge lines 13a and 13b and liquid are combined. The liquid supply / discharge lines 16a and 16b that share the supply lines 14a and 14b may be connected to the hydrogen gas compression towers 2a and 2b, respectively.

ここで、水素ガス圧縮塔２ａ・２ｂでは、水素ガスの供給と液体の排出が同時に行われ、又は水素ガスの排出と液体の供給が同時に行われる。したがって、本発明に係る水素ガス圧縮貯蔵装置は、一方の水素ガス圧縮塔で水素ガスの供給と液体の排出が同時に行われるように水素ガス供給バルブ２１及び液体排出バルブ２３が連動して切り替わり、かつ他方の水素ガス圧縮塔で水素ガスの排出と液体の供給が同時に行われるように水素ガス排出バルブ２２及び液体供給バルブ２４が連動して切り替わる機構を有することが好ましい。   Here, in the hydrogen gas compression towers 2a and 2b, the supply of hydrogen gas and the discharge of liquid are performed simultaneously, or the discharge of hydrogen gas and the supply of liquid are performed simultaneously. Therefore, in the hydrogen gas compression storage device according to the present invention, the hydrogen gas supply valve 21 and the liquid discharge valve 23 are switched in conjunction so that hydrogen gas supply and liquid discharge are simultaneously performed in one hydrogen gas compression tower, In addition, it is preferable to have a mechanism in which the hydrogen gas discharge valve 22 and the liquid supply valve 24 are switched in conjunction so that the hydrogen gas is discharged and the liquid is supplied simultaneously in the other hydrogen gas compression tower.

液体領域５ａ・５ｂには、液体として水が充填されていることが好ましい。他の液体でも構わないが、水であれば一般の家庭で手軽に利用することができる。   The liquid regions 5a and 5b are preferably filled with water as a liquid. Other liquids may be used, but water can be easily used in ordinary households.

液体ポンプ６としては、例えば市販の送液ポンプを用いることができる。液体ポンプ６の吐出圧力は、水素ガスを圧縮する観点から高い方が好ましく、例えば１５〜８０ＭＰａの吐出圧力を持つ送液ポンプを用いることが好ましい。なお、本発明では、液体排出ライン１３が液体ポンプ６のサクション側に接続されているが、こうすることで、液体ポンプ６のデリバリ側に接続された液体供給ライン１４から高圧で液体を吐出することができるようになる。   As the liquid pump 6, for example, a commercially available liquid feed pump can be used. The discharge pressure of the liquid pump 6 is preferably higher from the viewpoint of compressing hydrogen gas, and for example, a liquid feed pump having a discharge pressure of 15 to 80 MPa is preferably used. In the present invention, the liquid discharge line 13 is connected to the suction side of the liquid pump 6. By doing so, the liquid is discharged at a high pressure from the liquid supply line 14 connected to the delivery side of the liquid pump 6. Will be able to.

高圧で吐出された液体は、一方の水素ガス圧縮塔の液体領域に到達し、仕切り板を押し上げる。そして、その仕切り板によって押し出されるように、その水素ガス圧縮塔の水素ガス領域に存在する水素ガスが高圧で排出され、水素ガス貯蔵タンクに高圧の状態で貯蔵される。   The liquid discharged at high pressure reaches the liquid region of one of the hydrogen gas compression towers and pushes up the partition plate. Then, the hydrogen gas existing in the hydrogen gas region of the hydrogen gas compression tower is discharged at a high pressure so as to be pushed out by the partition plate, and stored in the hydrogen gas storage tank at a high pressure.

なお、図１では、２つの水素ガス圧縮塔２ａ・２ｂが１セット設置されているが、２つの水素ガス圧縮塔２ａ・２ｂを２セット以上設置してもよい。２つの水素ガス圧縮塔２ａ・２ｂを直列に２セット又はそれ以上設置することで、より高い圧力で水素ガスを貯蔵できるようになる。２つの水素ガス圧縮塔２ａ・２ｂを直列に２セット以上設置する場合、その間に一時的な水素ガス保管タンクを設置してもよい。   In FIG. 1, one set of two hydrogen gas compression towers 2a and 2b is installed, but two or more sets of two hydrogen gas compression towers 2a and 2b may be installed. By installing two sets or more of the two hydrogen gas compression towers 2a and 2b in series, hydrogen gas can be stored at a higher pressure. When two or more sets of two hydrogen gas compression towers 2a and 2b are installed in series, a temporary hydrogen gas storage tank may be installed between them.

ま水素ガス供給ライン１１の途中には、例えば、水素精製装置が設置されていてもよい。水素ガス排出ライン１２の途中には、図１に示すように、ドライヤー３１を設置する事が好ましい。こうすることで、水素ガス中の液体（水など）を除去することができる。それ以外に、水素ガス排出ライン１２の途中に水素濃度検出装置が接続されていてもよい。   In the middle of the hydrogen gas supply line 11, for example, a hydrogen purifier may be installed. It is preferable to install a dryer 31 in the middle of the hydrogen gas discharge line 12 as shown in FIG. By doing so, a liquid (such as water) in the hydrogen gas can be removed. In addition, a hydrogen concentration detection device may be connected in the middle of the hydrogen gas discharge line 12.

水素ガス排出ライン１２には、水素ガス貯蔵タンク７ａ・７ｂが接続されている。水素ガス貯蔵タンク７ａ・７ｂは、水素ガス圧縮塔２ａ・２ｂから高圧で排出された水素ガスを高圧の状態で貯蔵するものである。図１では、水素ガス排出ライン１２には、弁３２ａ・３２ｂを介して１本の水素ガス貯蔵タンク７ａと２本の水素ガス貯蔵タンク７ｂが接続されている。   Hydrogen gas storage tanks 7 a and 7 b are connected to the hydrogen gas discharge line 12. The hydrogen gas storage tanks 7a and 7b store the hydrogen gas discharged from the hydrogen gas compression towers 2a and 2b at a high pressure in a high pressure state. In FIG. 1, one hydrogen gas storage tank 7a and two hydrogen gas storage tanks 7b are connected to the hydrogen gas discharge line 12 via valves 32a and 32b.

図１では、水素ガス貯蔵タンク７ａには家庭用電源としての定置型燃料電池３３が接続されており、２本の水素ガス貯蔵タンク７ｂには燃料電池自動車に水素ガスを供給するための水素ディスペンサ３４が接続されている。このように、少なくとも１つの水素ガス貯蔵タンクに定置型燃料電池が接続され、残りの水素ガス貯蔵タンクに水素ディスペンサが接続されることで、定置型燃料電池に水素ガスを供給可能となり、かつ燃料電池自動車にも水素ガスを供給可能となる。水素ガス貯蔵タンク７ａ・７ｂへの水素ガスの振り分けは、特許文献１に記載の方法で行うことができる。   In FIG. 1, a stationary fuel cell 33 as a household power source is connected to the hydrogen gas storage tank 7a, and a hydrogen dispenser for supplying hydrogen gas to the fuel cell vehicle is connected to the two hydrogen gas storage tanks 7b. 34 is connected. As described above, the stationary fuel cell is connected to at least one hydrogen gas storage tank, and the hydrogen dispenser is connected to the remaining hydrogen gas storage tank, so that hydrogen gas can be supplied to the stationary fuel cell and the fuel can be supplied. Hydrogen gas can also be supplied to battery cars. The distribution of the hydrogen gas to the hydrogen gas storage tanks 7a and 7b can be performed by the method described in Patent Document 1.

以上のような水素ガス圧縮貯蔵装置を用いて水素ガスを圧縮・貯蔵する方法について、水素ガス圧縮塔２ａ・２ｂの運転時における状態を示す図２及び図３を参照しつつ説明する。なお、図２及び図３に記載された２本の水素ガス圧縮塔のうち、左側を水素ガス圧縮塔Ａと称し、右側を水素ガス圧縮塔Ｂと称する。   A method of compressing and storing hydrogen gas using the hydrogen gas compression storage apparatus as described above will be described with reference to FIGS. 2 and 3 showing the states of the hydrogen gas compression towers 2a and 2b during operation. 2 and 3, the left side is referred to as a hydrogen gas compression tower A, and the right side is referred to as a hydrogen gas compression tower B.

まず、図２（ａ）及び図３（ａ）に示すように、水素ガス圧縮塔Ａで水素ガスの供給と液体の排出が同時に行われるように水素ガス供給バルブ及び液体排出バルブがセットされ、また水素ガス圧縮塔Ｂで水素ガスの排出と液体の供給が同時に行われるように水素ガス排出バルブ及び液体供給バルブがセットされる。   First, as shown in FIGS. 2 (a) and 3 (a), the hydrogen gas supply valve and the liquid discharge valve are set so that the supply of hydrogen gas and the discharge of liquid are performed simultaneously in the hydrogen gas compression tower A, Further, the hydrogen gas discharge valve and the liquid supply valve are set so that the hydrogen gas is discharged and the liquid is supplied simultaneously in the hydrogen gas compression tower B.

この状態で、図２（ａ）及び図３（ａ）に示すように、水素ガス圧縮塔Ａの水素ガス領域には、水素ガス供給装置から水素ガス供給ラインを通じて水素ガスが供給される。それにより、水素ガス圧縮塔Ａの仕切り板が押し下げられる。そして、水素ガス圧縮塔Ａの液体領域からは液体が排出され液体排出ラインを通じて液体ポンプのサクション側に供給される。一方、水素ガス圧縮塔Ｂの液体領域には、液体ポンプのデリバリ側から液体供給ラインを通じて液体が供給される。それにより、水素ガス圧縮塔Ｂの仕切り板が押し上げられる。そして、水素ガス圧縮塔Ｂの水素ガス領域からは水素ガスが排出され水素ガス排出ラインを通じて水素ガス貯蔵タンクに供給される。   In this state, as shown in FIGS. 2 (a) and 3 (a), hydrogen gas is supplied to the hydrogen gas region of the hydrogen gas compression tower A from the hydrogen gas supply device through the hydrogen gas supply line. Thereby, the partition plate of the hydrogen gas compression tower A is pushed down. And liquid is discharged | emitted from the liquid area | region of the hydrogen gas compression tower A, and is supplied to the suction side of a liquid pump through a liquid discharge line. On the other hand, the liquid is supplied to the liquid region of the hydrogen gas compression tower B from the delivery side of the liquid pump through the liquid supply line. Thereby, the partition plate of the hydrogen gas compression tower B is pushed up. And hydrogen gas is discharged | emitted from the hydrogen gas area | region of the hydrogen gas compression tower B, and is supplied to a hydrogen gas storage tank through a hydrogen gas discharge line.

その後、図２（ｂ）及び図３（ｂ）に示すように、水素ガス圧縮塔Ａの仕切り板は押し下げられ続けて水素ガス圧縮塔Ａの最下部に到達し、水素ガス圧縮塔Ｂの仕切り板は押し上げられ続けて水素ガス圧縮塔Ｂの最上部に到達する。   Thereafter, as shown in FIGS. 2B and 3B, the partition plate of the hydrogen gas compression tower A continues to be pushed down to reach the lowermost part of the hydrogen gas compression tower A, and the partition of the hydrogen gas compression tower B The plate continues to be pushed up and reaches the top of the hydrogen gas compression tower B.

この段階で、バルブの切り替えが行われる。すなわち、水素ガス圧縮塔Ａで水素ガスの排出と液体の供給が同時に行われるように水素ガス排出バルブ及び液体供給バルブがセットされ、また水素ガス圧縮塔Ｂで水素ガスの供給と液体の排出が同時に行われるように水素ガス供給バルブ及び液体排出バルブがセットされる。前述のように、各バルブが連動して切り替わることで行われることが好ましい。   At this stage, the valve is switched. That is, the hydrogen gas discharge valve and the liquid supply valve are set so that the hydrogen gas is discharged and the liquid is supplied simultaneously in the hydrogen gas compression tower A, and the hydrogen gas is supplied and the liquid is discharged in the hydrogen gas compression tower B. A hydrogen gas supply valve and a liquid discharge valve are set to be performed simultaneously. As described above, it is preferable that each valve is switched in conjunction with each other.

この状態で、図２（ｃ）及び図３（ｃ）に示すように、水素ガス圧縮塔Ｂの水素ガス領域には、水素ガス供給装置から水素ガス供給ラインを通じて水素ガスが供給される。それにより、水素ガス圧縮塔Ｂの仕切り板が押し下げられる。そして、水素ガス圧縮塔Ｂの液体領域からは液体が排出され液体排出ラインを通じて液体ポンプのサクション側に供給される。一方、水素ガス圧縮塔Ａの液体領域には、液体ポンプのデリバリ側から液体供給ラインを通じて液体が供給される。それにより、水素ガス圧縮塔Ａの仕切り板が押し上げられる。そして、水素ガス圧縮塔Ａの水素ガス領域からは水素ガスが排出され水素ガス排出ラインを通じて水素ガス貯蔵タンクに供給される。   In this state, as shown in FIGS. 2C and 3C, hydrogen gas is supplied to the hydrogen gas region of the hydrogen gas compression tower B from the hydrogen gas supply device through the hydrogen gas supply line. Thereby, the partition plate of the hydrogen gas compression tower B is pushed down. Then, the liquid is discharged from the liquid region of the hydrogen gas compression tower B and supplied to the suction side of the liquid pump through the liquid discharge line. On the other hand, the liquid is supplied to the liquid region of the hydrogen gas compression tower A from the delivery side of the liquid pump through the liquid supply line. Thereby, the partition plate of the hydrogen gas compression tower A is pushed up. And hydrogen gas is discharged | emitted from the hydrogen gas area | region of the hydrogen gas compression tower A, and is supplied to a hydrogen gas storage tank through a hydrogen gas discharge line.

その後、図２（ｄ）及び図３（ｄ）に示すように、水素ガス圧縮塔Ｂの仕切り板は押し下げられ続けて水素ガス圧縮塔Ｂの最下部に到達し、水素ガス圧縮塔Ａの仕切り板は押し上げられ続けて水素ガス圧縮塔Ａの最上部に到達する。   Thereafter, as shown in FIGS. 2 (d) and 3 (d), the partition plate of the hydrogen gas compression tower B continues to be pushed down to reach the lowermost part of the hydrogen gas compression tower B, and the partition of the hydrogen gas compression tower A The plate continues to be pushed up and reaches the top of the hydrogen gas compression tower A.

この段階で、バルブの切り替えが行われる。すなわち、水素ガス圧縮塔Ａで水素ガスの供給と液体の排出が同時に行われるように水素ガス供給バルブ及び液体排出バルブがセットされ、また水素ガス圧縮塔Ｂで水素ガスの排出と液体の供給が同時に行われるように水素ガス排出バルブ及び液体供給バルブがセットされる。前述のように、各バルブが連動して切り替わることで行われることが好ましい。   At this stage, the valve is switched. That is, the hydrogen gas supply valve and the liquid discharge valve are set so that the hydrogen gas supply and the liquid discharge are simultaneously performed in the hydrogen gas compression tower A, and the hydrogen gas discharge and the liquid supply are performed in the hydrogen gas compression tower B. The hydrogen gas discharge valve and the liquid supply valve are set to be performed simultaneously. As described above, it is preferable that each valve is switched in conjunction with each other.

そして、図２（ａ）及び図３（ａ）の状態に戻る。これらの工程を繰り返し行うことで、水素ガスを圧縮貯蔵することができる。   And it returns to the state of Fig.2 (a) and FIG. 3 (a). By repeating these steps, hydrogen gas can be compressed and stored.

以上のような本発明によれば、水素ガス貯蔵タンクに高圧で水素ガスを貯蔵することができるため、一般の家庭でも設置可能となる。   According to the present invention as described above, hydrogen gas can be stored in the hydrogen gas storage tank at a high pressure, so that it can be installed even in a general household.

１ 水素ガス供給装置
２ａ 水素ガス圧縮塔
２ｂ 水素ガス圧縮塔
３ａ 仕切り板
３ｂ 仕切り板
４ａ 水素ガス領域
４ｂ 水素ガス領域
５ａ 液体領域
５ｂ 液体領域
６ 液体ポンプ
７ａ 水素ガス貯蔵タンク
７ｂ 水素ガス貯蔵タンク
１１ 水素ガス供給ライン
１１ａ 水素ガス供給ライン
１１ｂ 水素ガス供給ライン
１２ 水素ガス排出ライン
１２ａ 水素ガス排出ライン
１２ｂ 水素ガス排出ライン
１３ 液体排出ライン
１３ａ 液体排出ライン
１３ｂ 液体排出ライン
１４ 液体供給ライン
１４ａ 液体供給ライン
１４ｂ 液体供給ライン
１５ａ 水素ガス供給排出ライン
１５ｂ 水素ガス供給排出ライン
１６ａ 液体供給排出ライン
１６ｂ 液体供給排出ライン
２１ 水素ガス供給バルブ
２２ 水素ガス排出バルブ
２３ 液体排出バルブ
２４ 液体供給バルブ
３１ ドライヤー
３２ａ 弁
３２ｂ 弁
３３ 定置型燃料電池
３４ 水素ディスペンサ DESCRIPTION OF SYMBOLS 1 Hydrogen gas supply apparatus 2a Hydrogen gas compression tower 2b Hydrogen gas compression tower 3a Partition plate 3b Partition plate 4a Hydrogen gas area 4b Hydrogen gas area 5a Liquid area 5b Liquid area 6 Liquid pump 7a Hydrogen gas storage tank 7b Hydrogen gas storage tank 11 Hydrogen Gas supply line 11a Hydrogen gas supply line 11b Hydrogen gas supply line 12 Hydrogen gas discharge line 12a Hydrogen gas discharge line 12b Hydrogen gas discharge line 13 Liquid discharge line 13a Liquid discharge line 13b Liquid discharge line 14 Liquid supply line 14a Liquid supply line 14b Liquid Supply line 15a Hydrogen gas supply / discharge line 15b Hydrogen gas supply / discharge line 16a Liquid supply / discharge line 16b Liquid supply / discharge line 21 Hydrogen gas supply valve 22 Hydrogen gas discharge valve 23 Liquid discharge valve 24 Liquid supply valve 31 Dryer 2a valve 32b valve 33 stationary fuel cell 34 the hydrogen dispenser

Claims (8)

水素ガス供給装置と、水素ガス圧縮塔の２つと、液体ポンプと、水素ガス貯蔵タンクとを有し、
前記水素ガス圧縮塔は、内部を水素ガス領域と液体領域に仕切る可動式の仕切り板を有し、前記仕切り板が移動することで前記水素ガス領域と前記液体領域の容積が変動するものであり、
前記水素ガス圧縮塔の前記水素ガス領域には、
前記水素ガス供給装置から前記水素ガス領域に水素ガスを供給するための水素ガス供給ラインが接続されるとともに、いずれか一方の前記水素ガス圧縮塔の水素ガス領域にのみ水素ガスが供給されるように切り替え可能な水素ガス供給バルブが設置されており、かつ
前記水素ガス領域から水素ガスを排出して前記水素ガス貯蔵タンクに水素ガスを供給するための水素ガス排出ラインが接続されるとともに、いずれか一方の前記水素ガス圧縮塔の水素ガス領域からのみ水素ガスが排出されるように切り替え可能な水素ガス排出バルブが設置されており、
前記水素ガス圧縮塔の前記液体領域には、
前記液体領域から液体を排出して前記液体ポンプのサクション側に液体を供給するための液体排出ラインが接続されるとともに、いずれか一方の前記水素ガス圧縮塔の液体領域からのみ液体が排出されるように切り替え可能な液体排出バルブが設置されており、かつ
前記液体ポンプのデリバリ側から前記液体領域に液体を供給するための液体供給ラインが接続されるとともに、いずれか一方の前記水素ガス圧縮塔の液体領域にのみ液体が供給されるように切り替え可能な液体供給バルブが設置されている水素ガス圧縮貯蔵装置。 A hydrogen gas supply device, two hydrogen gas compression towers, a liquid pump, and a hydrogen gas storage tank;
The hydrogen gas compression tower has a movable partition plate that divides the interior into a hydrogen gas region and a liquid region, and the volume of the hydrogen gas region and the liquid region varies as the partition plate moves. ,
In the hydrogen gas region of the hydrogen gas compression tower,
A hydrogen gas supply line for supplying hydrogen gas from the hydrogen gas supply device to the hydrogen gas region is connected, and hydrogen gas is supplied only to the hydrogen gas region of one of the hydrogen gas compression towers. A hydrogen gas supply valve is installed, and a hydrogen gas discharge line for discharging the hydrogen gas from the hydrogen gas region and supplying the hydrogen gas to the hydrogen gas storage tank is connected. A switchable hydrogen gas discharge valve is installed so that hydrogen gas is discharged only from the hydrogen gas region of the one of the hydrogen gas compression towers,
In the liquid region of the hydrogen gas compression tower,
A liquid discharge line for discharging the liquid from the liquid region and supplying the liquid to the suction side of the liquid pump is connected, and the liquid is discharged only from the liquid region of one of the hydrogen gas compression towers. And a liquid supply line for supplying liquid to the liquid region from the delivery side of the liquid pump is connected, and one of the hydrogen gas compression towers is provided. A hydrogen gas compression storage device in which a switchable liquid supply valve is installed so that the liquid is supplied only to the liquid region. 一方の水素ガス圧縮塔で水素ガスの供給と液体の排出が同時に行われるように前記水素ガス供給バルブ及び前記液体排出バルブが連動して切り替わり、かつ他方の水素ガス圧縮塔で水素ガスの排出と液体の供給が同時に行われるように前記水素ガス排出バルブ及び前記液体供給バルブが連動して切り替わる機構をさらに有する請求項１に記載の水素ガス圧縮貯蔵装置。   The hydrogen gas supply valve and the liquid discharge valve are switched in conjunction so that the supply of hydrogen gas and the discharge of liquid are performed simultaneously in one hydrogen gas compression tower, and the discharge of hydrogen gas is performed in the other hydrogen gas compression tower. The hydrogen gas compression storage apparatus according to claim 1, further comprising a mechanism in which the hydrogen gas discharge valve and the liquid supply valve are switched so as to be simultaneously supplied with liquid. 前記液体領域に水が充填されている請求項１又は２に記載の水素ガス圧縮貯蔵装置。   The hydrogen gas compression storage apparatus according to claim 1 or 2, wherein the liquid region is filled with water. 前記水素ガス排出ラインの途中にドライヤーが設置されている請求項１〜３のいずれか１項に記載の水素ガス圧縮貯蔵装置。   The hydrogen gas compression storage apparatus of any one of Claims 1-3 with which the drier is installed in the middle of the said hydrogen gas discharge line. 水素ガス排出ラインには弁を介して複数の水素ガス貯蔵タンクが接続されており、少なくとも１つの水素ガス貯蔵タンクには定置型燃料電池が接続され、残りの水素ガス貯蔵タンクには水素ディスペンサが接続されている請求項１〜４のいずれか１項に記載の水素ガス圧縮貯蔵装置。   A plurality of hydrogen gas storage tanks are connected to the hydrogen gas discharge line via valves, a stationary fuel cell is connected to at least one hydrogen gas storage tank, and a hydrogen dispenser is connected to the remaining hydrogen gas storage tanks. The hydrogen gas compression storage apparatus of any one of Claims 1-4 connected. 水素ガス供給装置が、水の電気分解装置である請求項１〜５のいずれか１項に記載の水素ガス圧縮貯蔵装置。   The hydrogen gas compression storage device according to any one of claims 1 to 5, wherein the hydrogen gas supply device is a water electrolysis device. 前記水の電気分解装置には、太陽光発電装置が電気を供給可能に接続されている請求項６に記載の水素ガス圧縮貯蔵装置。   The hydrogen gas compression storage apparatus according to claim 6, wherein a photovoltaic power generation apparatus is connected to the water electrolysis apparatus so as to be able to supply electricity. 請求項１〜７のいずれか１項に記載の水素ガス圧縮貯蔵装置を用いて水素ガスを圧縮・貯蔵する方法であって、
（Ａ）水素ガス供給装置から水素ガス供給ラインを通じて一方の水素ガス圧縮塔Ａの水素ガス領域に水素ガスが供給されるとともに、前記水素ガス圧縮塔Ａの液体領域から液体が排出され液体排出ラインを通じて液体ポンプのサクション側に供給され、かつ液体ポンプのデリバリ側から液体供給ラインを通じて他方の水素ガス圧縮塔Ｂの液体領域に液体が供給されるとともに、前記水素ガス圧縮塔Ｂの水素ガス領域から水素ガスが排出され水素ガス排出ラインを通じて水素ガス貯蔵タンクに供給される工程と、
（Ｂ）前記水素ガス供給バルブが水素ガス圧縮塔Ａ側から水素ガス圧縮塔Ｂ側に切り替わるとともに、前記水素ガス排出バルブが水素ガス圧縮塔Ｂ側から水素ガス圧縮塔Ａ側に切り替わり、かつ前記液体供給バルブが水素ガス圧縮塔Ｂ側から水素ガス圧縮塔Ａ側に切り替わるとともに、前記液体排出バルブが水素ガス圧縮塔Ａ側から水素ガス圧縮塔Ｂ側に切り替わる工程と、
（Ｃ）水素ガス供給装置から水素ガス供給ラインを通じて水素ガス圧縮塔Ｂの水素ガス領域に水素ガスが供給されるとともに、前記水素ガス圧縮塔Ｂの液体領域から液体が排出され液体排出ラインを通じて液体ポンプのサクション側に供給され、かつ液体ポンプのデリバリ側から液体供給ラインを通じて水素ガス圧縮塔Ａの液体領域に液体が供給されるとともに、前記水素ガス圧縮塔Ａの水素ガス領域から水素ガスが排出され水素ガス排出ラインを通じて水素ガス貯蔵タンクに供給される工程と、
（Ｄ）前記水素ガス供給バルブが水素ガス圧縮塔Ｂ側から水素ガス圧縮塔Ａ側に切り替わるとともに、前記水素ガス排出バルブが水素ガス圧縮塔Ａ側から水素ガス圧縮塔Ｂ側に切り替わり、かつ前記液体供給バルブが水素ガス圧縮塔Ａ側から水素ガス圧縮塔Ｂ側に切り替わるとともに、前記液体排出バルブが水素ガス圧縮塔Ｂ側から水素ガス圧縮塔Ａ側に切り替わる工程と
を有する水素ガス圧縮貯蔵方法。 A method for compressing and storing hydrogen gas using the hydrogen gas compression storage device according to any one of claims 1 to 7,
(A) Hydrogen gas is supplied from the hydrogen gas supply device to the hydrogen gas region of one of the hydrogen gas compression towers A through the hydrogen gas supply line, and the liquid is discharged from the liquid region of the hydrogen gas compression tower A. And the liquid is supplied from the delivery side of the liquid pump to the liquid region of the other hydrogen gas compression tower B through the liquid supply line, and from the hydrogen gas region of the hydrogen gas compression tower B. A process in which hydrogen gas is discharged and supplied to a hydrogen gas storage tank through a hydrogen gas discharge line;
(B) The hydrogen gas supply valve is switched from the hydrogen gas compression tower A side to the hydrogen gas compression tower B side, and the hydrogen gas discharge valve is switched from the hydrogen gas compression tower B side to the hydrogen gas compression tower A side, and The liquid supply valve is switched from the hydrogen gas compression tower B side to the hydrogen gas compression tower A side, and the liquid discharge valve is switched from the hydrogen gas compression tower A side to the hydrogen gas compression tower B side;
(C) Hydrogen gas is supplied from the hydrogen gas supply device to the hydrogen gas region of the hydrogen gas compression tower B through the hydrogen gas supply line, and liquid is discharged from the liquid region of the hydrogen gas compression tower B and liquid is supplied through the liquid discharge line. The liquid is supplied to the suction side of the pump, and the liquid is supplied from the delivery side of the liquid pump to the liquid region of the hydrogen gas compression tower A through the liquid supply line, and the hydrogen gas is discharged from the hydrogen gas region of the hydrogen gas compression tower A And a process of supplying the hydrogen gas storage tank through the hydrogen gas discharge line;
(D) The hydrogen gas supply valve is switched from the hydrogen gas compression tower B side to the hydrogen gas compression tower A side, the hydrogen gas discharge valve is switched from the hydrogen gas compression tower A side to the hydrogen gas compression tower B side, and A method of compressing and storing hydrogen gas, wherein the liquid supply valve is switched from the hydrogen gas compression tower A side to the hydrogen gas compression tower B side, and the liquid discharge valve is switched from the hydrogen gas compression tower B side to the hydrogen gas compression tower A side. .
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