JP2021046602A5 - - Google Patents
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- JP2021046602A5 JP2021046602A5 JP2019171837A JP2019171837A JP2021046602A5 JP 2021046602 A5 JP2021046602 A5 JP 2021046602A5 JP 2019171837 A JP2019171837 A JP 2019171837A JP 2019171837 A JP2019171837 A JP 2019171837A JP 2021046602 A5 JP2021046602 A5 JP 2021046602A5
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- JP
- Japan
- Prior art keywords
- water electrolysis
- liquid separation
- separation tank
- hydrogen
- oxygen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- 238000005868 electrolysis reaction Methods 0.000 claims description 51
- 239000007788 liquid Substances 0.000 claims description 27
- 238000000926 separation method Methods 0.000 claims description 27
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 15
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 12
- 229910001882 dioxygen Inorganic materials 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 239000005518 polymer electrolyte Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
Description
前記水素側気液分離タンクには、当該水素側気液分離タンク内の水位を検出するセンサが設けられ、当該センサによって所定の高い水位を検知した際には、エラーが発生したとみなされるように構成されている場合、前記電源装置がＯＦＦになって前記水電解システムの運転が停止した後、運転再開時には、一定時間、当該センサによって前記所定の高い水位を検知してもエラーが発生したとみなさないように構成してもよい。
これによって圧力調整を正常に行っている結果として水素側気液分離タンク内の水位が上昇しても、エラーとはみなされず、水電解システムの運転再開を適切に実行することができる。
別な観点によれば、次の方法も提案できる。
すなわち、固体高分子電解質膜を有する水電解セルを有する水電解装置によって原料水を水電解する方法であって、
前記水電解装置で発生した水素ガスを前記水電解装置外に放出する水素ガス放出路に水素側気液分離タンクを設け、
前記水電解装置で発生した酸素ガスを前記水電解装置外に放出する酸素ガス放出路に酸素側気液分離タンクを設け、
前記酸素側気液分離タンクと水素側気液分離タンクとを圧力調整流路で接続し、前記圧力調整流路は、前記酸素側気液分離タンクからの流体のみが前記水素側気液分離タンクに流れるようにしたことを特徴とする、水電解方法。
またさらに次の方法も提案できる。
固体高分子電解質膜を有する水電解セルを有する水電解装置によって原料水を水電解して水素を製造する方法であって、
前記水電解装置で発生した水素ガスを前記水電解装置外に放出する水素ガス放出路と、前記水電解装置で発生した酸素ガスを前記水電解装置外に放出する酸素ガス放出路との間に、圧力調整流路を設け、当該圧力調整流路は、前記酸素ガス放出路からの流体のみが前記水素ガス放出路に流れるようにしたことを特徴とする、水素製造方法。
The hydrogen-side gas-liquid separation tank is provided with a sensor for detecting the water level in the hydrogen-side gas-liquid separation tank, and when the sensor detects a predetermined high water level, it is assumed that an error has occurred. , an error occurred even if the sensor detected the predetermined high water level for a certain period of time when the water electrolysis system was restarted after the power supply was turned off and the operation of the water electrolysis system was stopped. It may be configured not to consider
As a result, even if the water level in the hydrogen-side gas-liquid separation tank rises as a result of normal pressure adjustment, it is not regarded as an error, and the operation of the water electrolysis system can be properly restarted.
From another point of view, the following method can also be proposed.
That is, a method of water electrolysis of raw water by a water electrolysis device having a water electrolysis cell having a solid polymer electrolyte membrane,
A hydrogen-side gas-liquid separation tank is provided in a hydrogen gas discharge passage for discharging hydrogen gas generated in the water electrolysis device to the outside of the water electrolysis device,
An oxygen-side gas-liquid separation tank is provided in an oxygen gas discharge passage for discharging oxygen gas generated in the water electrolysis device to the outside of the water electrolysis device,
The oxygen-side gas-liquid separation tank and the hydrogen-side gas-liquid separation tank are connected by a pressure adjustment channel, and the pressure adjustment channel allows only the fluid from the oxygen-side gas-liquid separation tank to flow into the hydrogen-side gas-liquid separation tank. A water electrolysis method, characterized in that it is made to flow into.
Moreover, the following method can also be proposed.
A method for producing hydrogen by water electrolysis of raw water using a water electrolysis device having a water electrolysis cell having a solid polymer electrolyte membrane, comprising:
Between a hydrogen gas release passage for releasing hydrogen gas generated in the water electrolysis device to the outside of the water electrolysis device and an oxygen gas release passage for releasing the oxygen gas generated in the water electrolysis device to the outside of the water electrolysis device 1. A method for producing hydrogen, characterized in that a pressure adjusting channel is provided, and the pressure adjusting channel is configured so that only the fluid from the oxygen gas releasing channel flows into the hydrogen gas releasing channel.
Claims (9)
前記水電解装置に直流電力を供給する電源装置と、
前記水電解装置に原料水を供給する原料水供給路と、
前記水電解装置で発生した水素ガスを、水素側気液分離タンクを経由して前記水電解装置外に放出する水素ガス放出路と、
前記水電解装置で発生した酸素ガスを、酸素側気液分離タンクを経由して前記水電解装置外に放出する酸素ガス放出路と、
を有し、
前記酸素側気液分離タンクと前記水素側気液分離タンクとは圧力調整流路で接続され、
当該圧力調整流路は、前記酸素側気液分離タンクからの水のみが前記水素側気液分離タンクに流れるように構成されていることを特徴とする、水電解システム。 A water electrolysis system having a water electrolysis device using a water electrolysis cell having a solid polymer electrolyte membrane,
a power supply device that supplies DC power to the water electrolysis device;
a raw water supply channel for supplying raw water to the water electrolysis device;
a hydrogen gas discharge path for discharging hydrogen gas generated in the water electrolysis device to the outside of the water electrolysis device via a hydrogen-side gas-liquid separation tank;
an oxygen gas release path for releasing oxygen gas generated in the water electrolysis device to the outside of the water electrolysis device via an oxygen-side gas-liquid separation tank;
has
The oxygen-side gas-liquid separation tank and the hydrogen-side gas-liquid separation tank are connected by a pressure adjustment channel,
The water electrolysis system, wherein the pressure adjustment channel is configured so that only water from the oxygen-side gas-liquid separation tank flows to the hydrogen-side gas-liquid separation tank.
当該センサによって所定の低い水位を検知した際には、エラーが発生したとみなされるように構成され、
前記電源装置がＯＦＦになって前記水電解システムの運転が停止した後、運転再開時には、一定時間、当該センサによって前記所定の低い水位を検知してもエラーが発生したとみなさないように構成されたことを特徴とする、請求項１～５のいずれか一項に記載の水電解システム。 The oxygen-side gas-liquid separation tank is provided with a sensor for detecting the water level in the oxygen-side gas-liquid separation tank,
When the sensor detects a predetermined low water level, it is considered that an error has occurred,
After the power supply is turned off and the operation of the water electrolysis system is stopped, when the operation is restarted, even if the sensor detects the predetermined low water level for a certain period of time, it is not regarded as an error occurrence. The water electrolysis system according to any one of claims 1 to 5, characterized in that
当該センサによって所定の高い水位を検知した際には、エラーが発生したとみなされるように構成され、
前記電源装置がＯＦＦになって前記水電解システムの運転が停止した後、運転再開時には、一定時間、当該センサによって前記所定の高い水位を検知してもエラーが発生したとみなさないように構成されたことを特徴とする、請求項１～６のいずれか一項に記載の水電解システム。 The hydrogen-side gas-liquid separation tank is provided with a sensor for detecting the water level in the hydrogen-side gas-liquid separation tank,
When the sensor detects a predetermined high water level, it is considered that an error has occurred,
After the power supply is turned off and the operation of the water electrolysis system is stopped, when the operation is restarted, even if the sensor detects the predetermined high water level for a certain period of time, it is not regarded as an error occurrence. The water electrolysis system according to any one of claims 1 to 6, characterized in that
前記水電解装置で発生した水素ガスを前記水電解装置外に放出する水素ガス放出路に水素側気液分離タンクを設け、A hydrogen-side gas-liquid separation tank is provided in a hydrogen gas discharge passage for discharging hydrogen gas generated in the water electrolysis device to the outside of the water electrolysis device,
前記水電解装置で発生した酸素ガスを前記水電解装置外に放出する酸素ガス放出路に酸素側気液分離タンクを設け、An oxygen-side gas-liquid separation tank is provided in an oxygen gas discharge passage for discharging oxygen gas generated in the water electrolysis device to the outside of the water electrolysis device,
前記酸素側気液分離タンクと水素側気液分離タンクとを圧力調整流路で接続し、前記圧力調整流路は、前記酸素側気液分離タンクからの流体のみが前記水素側気液分離タンクに流れるようにしたことを特徴とする、水電解方法。The oxygen-side gas-liquid separation tank and the hydrogen-side gas-liquid separation tank are connected by a pressure adjustment channel, and the pressure adjustment channel allows only the fluid from the oxygen-side gas-liquid separation tank to flow into the hydrogen-side gas-liquid separation tank. A water electrolysis method, characterized in that it is made to flow to.
前記水電解装置で発生した水素ガスを前記水電解装置外に放出する水素ガス放出路と、前記水電解装置で発生した酸素ガスを前記水電解装置外に放出する酸素ガス放出路との間に、圧力調整流路を設け、当該圧力調整流路は、前記酸素ガス放出路からの流体のみが前記水素ガス放出路に流れるようにしたことを特徴とする、水素製造方法。Between a hydrogen gas release passage for releasing hydrogen gas generated in the water electrolysis device to the outside of the water electrolysis device and an oxygen gas release passage for releasing the oxygen gas generated in the water electrolysis device to the outside of the water electrolysis device 1. A method for producing hydrogen, characterized in that a pressure adjusting channel is provided, and the pressure adjusting channel is configured so that only the fluid from the oxygen gas releasing channel flows into the hydrogen gas releasing channel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019171837A JP7436171B2 (en) | 2019-09-20 | 2019-09-20 | water electrolysis system |
| JP2024018086A JP2024045484A (en) | 2019-09-20 | 2024-02-08 | water electrolysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019171837A JP7436171B2 (en) | 2019-09-20 | 2019-09-20 | water electrolysis system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2024018086A Division JP2024045484A (en) | 2019-09-20 | 2024-02-08 | water electrolysis system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021046602A JP2021046602A (en) | 2021-03-25 |
| JP2021046602A5 true JP2021046602A5 (en) | 2022-10-21 |
| JP7436171B2 JP7436171B2 (en) | 2024-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2019171837A Active JP7436171B2 (en) | 2019-09-20 | 2019-09-20 | water electrolysis system |
| JP2024018086A Pending JP2024045484A (en) | 2019-09-20 | 2024-02-08 | water electrolysis system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2024018086A Pending JP2024045484A (en) | 2019-09-20 | 2024-02-08 | water electrolysis system |
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| JP (2) | JP7436171B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2022227148A1 (en) * | 2022-01-28 | 2023-08-17 | Kabushiki Kaisha Toshiba | Electrochemical reaction device and electrochemical reaction method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038289A (en) | 2000-07-26 | 2002-02-06 | Shinko Pantec Co Ltd | Hydrogen/oxygen supplying system |
| JP4537547B2 (en) | 2000-07-26 | 2010-09-01 | 株式会社神鋼環境ソリューション | Hydrogen and oxygen supply system |
| WO2002027814A2 (en) | 2000-09-28 | 2002-04-04 | Proton Energy Systems, Inc. | Regenerative electrochemical cell system and method for use thereof |
| JP5033312B2 (en) | 2005-03-10 | 2012-09-26 | 日立造船株式会社 | Solid polymer water electrolyzer |
| JP2007100204A (en) | 2005-10-07 | 2007-04-19 | Mitsubishi Corp | Method and apparatus for producing high pressure hydrogen |
| JP5455874B2 (en) | 2010-11-19 | 2014-03-26 | 高砂熱学工業株式会社 | Hydrogen production method and hydrogen production system |
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- 2019-09-20 JP JP2019171837A patent/JP7436171B2/en active Active
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