JP4706263B2 - High pressure vessel-accommodated water electrolysis hydrogen generator and method for operating the device - Google Patents
High pressure vessel-accommodated water electrolysis hydrogen generator and method for operating the device Download PDFInfo
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Description
本発明は、固体高分子電解質膜を用いて、水の電気分解により高圧の水素ガスを発生させる水電解水素発生装置に関し、より詳しくは、低圧水素ガス例えば１０ＭＰａ程度、および、数十ＭＰａ、例えば燃料電池車をガソリン車と同等距離走行させるのに水素ステーションで必要とされる少なくとも４０ＭＰａ、好ましくは８０ＭＰａの高圧水素ガスを発生することができる水電解水素発生装置に関し、特に容器収納型水電解槽に関する。 The present invention relates to a water electrolysis hydrogen generator that generates high-pressure hydrogen gas by electrolysis of water using a solid polymer electrolyte membrane, and more specifically, low-pressure hydrogen gas, for example, about 10 MPa, and several tens of MPa, for example, BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water electrolysis hydrogen generator capable of generating high-pressure hydrogen gas of at least 40 MPa, preferably 80 MPa, which is required at a hydrogen station to travel a fuel cell vehicle at the same distance as a gasoline vehicle. About.
高分子電解質膜を用いて水を電解し、陽極に酸素を、陰極に水素を発生させる固体高分子型水電解槽と、水電解槽の陰極にて発生した水素と水を分離する水素気液分離器と、水電解槽の陽極にて発生した酸素と水を分離する酸素気液分離器と、純水タンクから水電解槽へ水を供給する給水ポンプを有する給水ラインとを備えている水電解水素発生装置は、既に知られている。容器収納型水電解水素発生装置は、上記のような固体高分子型水電解槽を所定の高圧を維持することができる容器内に収めたものである。 A polymer electrolyte membrane that electrolyzes water, generates oxygen at the anode and hydrogen at the cathode, and a hydrogen gas / liquid that separates water and hydrogen generated at the cathode of the water electrolysis tank Water having a separator, an oxygen gas-liquid separator that separates oxygen and water generated at the anode of the water electrolysis tank, and a water supply line having a water supply pump that supplies water from the pure water tank to the water electrolysis tank An electrolytic hydrogen generator is already known. The container-accommodating water electrolysis hydrogen generator is a container in which the solid polymer water electrolysis tank as described above is stored in a container capable of maintaining a predetermined high pressure.
従来の容器収納型水電解水素発生装置では、装置立上げの際に、水電解により水素と酸素を発生させて容器内および気液分離器内の圧力を定常圧まで上昇させていた（特許文献１参照）。 In a conventional container-accommodating water electrolysis hydrogen generator, hydrogen and oxygen are generated by water electrolysis when the apparatus is started up to increase the pressure in the container and the gas-liquid separator to a steady pressure (Patent Document) 1).
上記のような構造では、容器内および気液分離器内の圧力を大気圧から数十ＭＰａに上げる場合、数十分から数時間もの長い時間を要していた。時間短縮のために供給水を高圧で供給することは可能であるが、同時に陰極側（水素側）を昇圧させて電解質膜の両側に差圧が生じないようにしないと電解質膜が破損してしまう。
本発明は、上記のような実状に鑑み、短時間で定常圧力になるように運転でき、かつ電解質膜の両側に差圧が生じないように圧力を制御できる高圧水素発生装置を提供することを課題とする。 In view of the above circumstances, the present invention provides a high-pressure hydrogen generator that can be operated so as to reach a steady pressure in a short time and can control the pressure so that a differential pressure does not occur on both sides of the electrolyte membrane. Let it be an issue.
請求項１に係る発明は、
圧力容器内に設置され、高分子電解質膜を用いて水を電解し、陽極に酸素、陰極に水素を発生させる水電解槽と、純水タンクから水電解槽へ水を送る給水ラインと、水電解槽の陰極にて発生した水素を水素タンクへ導く水素ラインと、水素タンクの上流にて水素ライン上に設けられかつ水素と水とを分離する水素気液分離器と、水素気液分離器と水素タンクの間にて水素ラインに設けられた水素圧制御弁と、水電解槽の陽極にて発生した酸素を陽極側に連通した圧力容器内から所望箇所へ導く酸素ラインと、酸素ラインに設けられた酸素圧制御弁とを備えてなる固体高分子型水電解装置において、
水素タンクから水素気液分離器へ水素を供給する水素供給ラインが配設され、水素供給ラインに圧力制御弁が設けられていることを特徴とする高圧容器収納型水電解水素発生装置である。
The invention according to claim 1
A water electrolyzer installed in a pressure vessel, electrolyzing water using a polymer electrolyte membrane, generating oxygen at the anode and hydrogen at the cathode, a water supply line for sending water from the pure water tank to the water electrolyzer, water A hydrogen line for introducing hydrogen generated at the cathode of the electrolytic cell to the hydrogen tank, a hydrogen gas / liquid separator provided on the hydrogen line upstream of the hydrogen tank and separating hydrogen and water, and a hydrogen gas / liquid separator A hydrogen pressure control valve provided in the hydrogen line between the hydrogen tank, an oxygen line for guiding oxygen generated at the anode of the water electrolysis tank to the desired location from the pressure vessel communicating with the anode side, and an oxygen line In a solid polymer type water electrolysis apparatus comprising an oxygen pressure control valve provided,
A high-pressure vessel-accommodating water electrolysis hydrogen generator characterized in that a hydrogen supply line for supplying hydrogen from a hydrogen tank to a hydrogen gas-liquid separator is provided, and a pressure control valve is provided in the hydrogen supply line.
請求項２に係る発明は、
圧力容器内に設置され、高分子電解質膜を用いて水を電解し、陽極に酸素、陰極に水素を発生させる水電解槽と、純水タンクから水電解槽へ水を送る給水ラインと、水電解槽の陰極にて発生した水素を陰極側に連通した圧力容器内から水素タンクへ導く水素ラインと、圧力容器と水素タンクの間にて水素ラインに設けられた水素圧制御弁と、水電解槽の陽極にて発生した酸素を酸素気液分離器を経て所望箇所へ導く酸素ラインと、酸素気液分離器の下流にて酸素ラインに設けられた酸素圧制御弁とを備えてなる固体高分子型水電解装置において、
水素タンクから水素気液分離器へ水素を供給する水素供給ラインが配設され、水素供給ラインに圧力制御弁が設けられていることを特徴とする高圧容器収納型水電解水素発生装置である。
The invention according to
A water electrolyzer installed in a pressure vessel, electrolyzing water using a polymer electrolyte membrane, generating oxygen at the anode and hydrogen at the cathode, a water supply line for sending water from the pure water tank to the water electrolyzer, water A hydrogen line for introducing hydrogen generated at the cathode of the electrolytic cell to the hydrogen tank from the pressure vessel communicating with the cathode side, a hydrogen pressure control valve provided in the hydrogen line between the pressure vessel and the hydrogen tank, and water electrolysis Solid oxygen comprising an oxygen line that guides oxygen generated at the anode of the tank to a desired location via an oxygen gas-liquid separator and an oxygen pressure control valve provided in the oxygen line downstream of the oxygen gas-liquid separator. In molecular water electrolysis equipment,
A high-pressure vessel-accommodating water electrolysis hydrogen generator characterized in that a hydrogen supply line for supplying hydrogen from a hydrogen tank to a hydrogen gas-liquid separator is provided, and a pressure control valve is provided in the hydrogen supply line.
請求項３に係る発明は、
請求項１または２記載の高圧容器収納型水電解水素発生装置の運転方法であって、同装置を常圧もしくは定常圧力より低い状態から立上げる際に水素供給ラインを経て水素タンクから気液分離器へ水素を供給すると共に、水電解槽の陽極側に圧力調整された電解用の水を供給することを特徴とする運転方法である。
The invention according to claim 3
The operation method of the high pressure vessel storage type water electrolysis hydrogen generator according to
請求項４に係る発明は、
請求項３記載の運転方法において、水素気液分離器の圧力と水電解槽の陽極側に供給すれる電解用の水の圧力差が１ＭＰａ以内になるように水供給圧力を調整することを特徴とする運転方法である。
The invention according to
4. The operation method according to claim 3, wherein the water supply pressure is adjusted so that the pressure difference between the pressure of the hydrogen gas-liquid separator and the pressure of water for electrolysis supplied to the anode side of the water electrolysis tank is within 1 MPa. This is the driving method.
本発明によれば、高圧水素発生装置を短時間で定常圧力になるように運転することができる。加えて、水素タンクに蓄えられていた水素を水素気液分離器に供給すると共にその圧力と同程度で電解用の水を電解槽に供給することにより、電解質膜の両側に差圧が生じないようにして電解質膜が破損するのを確実に防ぐことができる。 According to the present invention, the high-pressure hydrogen generator can be operated to reach a steady pressure in a short time. In addition, by supplying the hydrogen stored in the hydrogen tank to the hydrogen gas-liquid separator and supplying water for electrolysis to the electrolytic cell at the same level as the pressure, no differential pressure occurs on both sides of the electrolyte membrane. Thus, it is possible to reliably prevent the electrolyte membrane from being damaged.
本発明を具体的に説明するために、本発明の実施例をいくつか挙げる。 In order to illustrate the present invention, several examples of the present invention will be given.
実施例１
図１において、高圧容器収納型水電解水素発生装置は、圧力容器(1) 内に設置され、高分子電解質膜を用いて水を電解し、陽極に酸素、陰極に水素を発生させる水電解槽(2) と、純水タンク(3) から水電解槽(2) へ水を送る給水ライン(5) と、水電解槽(2) の陰極にて発生した水素を水素タンク(6) へ導く水素ライン(7) と、水素タンク(6) の上流にて水素ライン(7) 上に設けられかつ水素と水とを分離する水素気液分離器(8) と、水素気液分離器(8) と水素タンク(6) の間にて水素ライン(7) に設けられた水素圧制御弁(9) と、水電解槽(2) の陽極にて発生した酸素を陽極側に連通した圧力容器(1) 内から所望箇所へ導く酸素ライン(10)と、酸素ライン(10)に設けられた酸素圧制御弁(11)とを備えてなる。
Example 1
In FIG. 1, a high pressure vessel-accommodating water electrolysis hydrogen generator is installed in a pressure vessel (1) and electrolyzes water using a polymer electrolyte membrane to generate oxygen at the anode and hydrogen at the cathode. (2), the water supply line (5) for sending water from the pure water tank (3) to the water electrolyzer (2), and the hydrogen generated at the cathode of the water electrolyzer (2) is led to the hydrogen tank (6) A hydrogen line (7), a hydrogen gas-liquid separator (8) provided on the hydrogen line (7) upstream of the hydrogen tank (6) and separating hydrogen and water, and a hydrogen gas-liquid separator (8 ) And a hydrogen tank (6), a hydrogen pressure control valve (9) provided in the hydrogen line (7), and a pressure vessel in which oxygen generated at the anode of the water electrolysis tank (2) is communicated to the anode side (1) An oxygen line (10) leading from the inside to a desired location and an oxygen pressure control valve (11) provided in the oxygen line (10) are provided.
圧力容器(1)の底壁から純水タンク(3)へ水循環ライン(12)が配され、同ライン(12)から給水ライン(5) へバイパスライン(13)が配されている。水循環ライン(12)およびバイパスライン(13)にはそれぞれ水流量制御弁(14)(15)が設けられている。酸素ライン(10)には酸素側圧力計(16)が設けられている。給水ライン(5) には給水ポンプ(4) が設けられている。 A water circulation line (12) is arranged from the bottom wall of the pressure vessel (1) to the pure water tank (3), and a bypass line (13) is arranged from the line (12) to the water supply line (5). Water flow control valves (14) and (15) are provided in the water circulation line (12) and the bypass line (13), respectively. The oxygen line (10) is provided with an oxygen side pressure gauge (16). The water supply line (5) is provided with a water supply pump (4).
水素ライン(7) において水素気液分離器(8) から水素タンク(6) までの部分に並列して、水素タンク(6) から水素気液分離器(8) へ水素を供給する水素供給ライン(17)が配設されている。水素供給ライン(17)には圧力制御弁(18)および逆止弁(19)が設けられている。水素ライン(7) にも水素圧制御弁(9) の下流に逆止弁(20)が設けられ、また水素気液分離器(8) の下流には水素側圧力計(21)が設けられている。 A hydrogen supply line that supplies hydrogen from the hydrogen tank (6) to the hydrogen gas-liquid separator (8) in parallel with the hydrogen gas-liquid separator (8) to the hydrogen tank (6) in the hydrogen line (7). (17) is provided. The hydrogen supply line (17) is provided with a pressure control valve (18) and a check valve (19). The hydrogen line (7) is also provided with a check valve (20) downstream of the hydrogen pressure control valve (9), and a hydrogen side pressure gauge (21) is provided downstream of the hydrogen gas-liquid separator (8). ing.
酸素ライン(10)の酸素側圧力計(16)が圧力容器(1) 内の圧力を計測し、その計測値と水素側圧力計(21)で計測された水素圧との差圧が生じないように、酸素圧制御弁(11)および水流量制御弁(15)へこれらを制御する信号を送る。このようにして、酸素・水素の差圧制御は水素圧を基準として、それに追従するように酸素側の指令値を出して酸素側圧力を制御する。 The oxygen side pressure gauge (16) of the oxygen line (10) measures the pressure in the pressure vessel (1), and there is no difference between the measured value and the hydrogen pressure measured by the hydrogen side pressure gauge (21). Thus, signals for controlling these are sent to the oxygen pressure control valve (11) and the water flow rate control valve (15). In this way, the oxygen / hydrogen differential pressure control is based on the hydrogen pressure, and the oxygen side command value is output so as to follow the oxygen pressure to control the oxygen side pressure.
上記構成の高圧容器収納型水電解水素発生装置において、給水ライン(5) の給水ポンプ(4) を駆動させて電解用の水を純水タンク(3) から給水ライン(5) を経て水電解槽(2) の陽極側へ供給する。水電解で発生した酸素は水電解槽(2) の陽極側に連通している圧力容器(1) 内で水と気液分離され、酸素ライン(10)を経て所望箇所へ送られる。水電解で発生した水素は水素ライン(7) を経て水電解槽(2) から水素気液分離器(8) へ送られ、ここで水と気液分離され、さらに水素ライン(7) を経て水素タンク(6) へ送られ、ここに高圧状態で蓄えられ、必要に応じて水素ディスペンサー等の所望箇所へ供給される。 In the high-pressure vessel-accommodated water electrolysis hydrogen generator configured as described above, the water supply pump (4) of the water supply line (5) is driven to electrolyze water for electrolysis from the pure water tank (3) through the water supply line (5). Supply to the anode side of the tank (2). Oxygen generated by water electrolysis is gas-liquid separated from water in a pressure vessel (1) communicating with the anode side of the water electrolysis tank (2), and sent to a desired location via an oxygen line (10). Hydrogen generated by water electrolysis is sent from the water electrolysis tank (2) to the hydrogen gas-liquid separator (8) through the hydrogen line (7), where it is separated from water and gas-liquid, and further through the hydrogen line (7). It is sent to a hydrogen tank (6), where it is stored in a high-pressure state, and supplied to a desired location such as a hydrogen dispenser as necessary.
高圧容器収納型水電解水素発生装置を常圧もしくは定常圧力より低い状態から立上げる際には、水素タンク(6) 内に蓄えられた高圧水素を水素供給ライン(17)を経て水素気液分離器(8) へ供給し、同分離器(8) 内の水素圧を高める。これと同時に、この圧力と差圧がなるべく生じないように、好ましくは１ＭＰａ以下になるように、純水タンク(3) から水電解槽(2) の陽極側へ供給する電解用の水の圧力を調整する。 When starting up the high-pressure vessel-accommodated water electrolysis hydrogen generator from normal pressure or lower than steady pressure, high-pressure hydrogen stored in the hydrogen tank (6) is separated into hydrogen gas and liquid via the hydrogen supply line (17). To the separator (8) to increase the hydrogen pressure in the separator (8). At the same time, the pressure of the electrolyzed water supplied from the pure water tank (3) to the anode side of the water electrolysis tank (2) is preferably set to 1 MPa or less so that this pressure and the differential pressure do not occur as much as possible. Adjust.
実施例２
この実施例では、水電解槽(2) の陰極側が圧力容器(1) に連通している。高圧容器収納型水電解水素発生装置は、図２に示すように、圧力容器(1) 内に設置され、高分子電解質膜を用いて水を電解し、陽極に酸素、陰極に水素を発生させる水電解槽(2) と、純水タンク(3) から水電解槽(2) へ水を送る給水ライン(5) と、水電解槽(2) の陰極にて発生した水素を陰極側に連通した圧力容器(1) 内から水素タンク(6) へ導く水素ライン(7) と、圧力容器(1) と水素タンク(6) の間にて水素ライン(7) に設けられた水素圧制御弁(9) と、水電解槽(2) の陽極にて発生した酸素を酸素気液分離器(22)を経て所望箇所へ導く酸素ライン(10)と、酸素気液分離器(22)の下流にて酸素ライン(10)に設けられた酸素側圧力計(16)および酸素圧制御弁(11)とを備えてなる。
Example 2
In this embodiment, the cathode side of the water electrolyzer (2) communicates with the pressure vessel (1). As shown in FIG. 2, the high pressure vessel-accommodated water electrolysis hydrogen generator is installed in a pressure vessel (1), electrolyzes water using a polymer electrolyte membrane, and generates oxygen at the anode and hydrogen at the cathode. The water electrolysis tank (2), the water supply line (5) for sending water from the pure water tank (3) to the water electrolysis tank (2), and hydrogen generated at the cathode of the water electrolysis tank (2) communicate with the cathode side. Hydrogen line (7) leading from the pressure vessel (1) to the hydrogen tank (6), and a hydrogen pressure control valve provided in the hydrogen line (7) between the pressure vessel (1) and the hydrogen tank (6) (9), an oxygen line (10) for introducing oxygen generated at the anode of the water electrolysis tank (2) to a desired location via the oxygen gas-liquid separator (22), and a downstream of the oxygen gas-liquid separator (22) And an oxygen pressure gauge (16) and an oxygen pressure control valve (11) provided in the oxygen line (10).
酸素気液分離器(22)から純水タンク(3)へ水循環ライン(12)が配され、同ライン(12)から給水ライン(5) へバイパスライン(13)が配されている。水循環ライン(12)およびバイパスライン(13)にはそれぞれ水流量制御弁(14)(15)が設けられている。給水ライン(5) には給水ポンプ(4) が設けられている。 A water circulation line (12) is arranged from the oxygen gas-liquid separator (22) to the pure water tank (3), and a bypass line (13) is arranged from the line (12) to the water supply line (5). Water flow control valves (14) and (15) are provided in the water circulation line (12) and the bypass line (13), respectively. The water supply line (5) is provided with a water supply pump (4).
水素ライン(7) において圧力容器(1) から水素タンク(6) までの部分に並列して、水素タンク(6) から圧力容器(1) へ水素を供給する水素供給ライン(17)が配設されている。水素供給ライン(17)には圧力制御弁(18)および逆止弁(19)が設けられている。水素ライン(7) にも水素圧制御弁(9)の下流に逆止弁(20)が設けられ、また圧力容器(1) の下流には水素側圧力計(21)が設けられている。 A hydrogen supply line (17) for supplying hydrogen from the hydrogen tank (6) to the pressure vessel (1) is arranged in parallel with the portion from the pressure vessel (1) to the hydrogen tank (6) in the hydrogen line (7). Has been. The hydrogen supply line (17) is provided with a pressure control valve (18) and a check valve (19). The hydrogen line (7) is also provided with a check valve (20) downstream of the hydrogen pressure control valve (9), and a hydrogen side pressure gauge (21) is provided downstream of the pressure vessel (1).
酸素ライン(10)の酸素側圧力計(16)が圧力容器(1) 内の圧力を計測し、その計測値と水素側圧力計(21)で計測された水素圧との差圧が生じないように、酸素圧制御弁(11)および水流量制御弁(15)へこれらを制御する信号を送る。このようにして、酸素・水素の差圧制御は水素圧を基準として、それに追従するように酸素側の指令値を出して酸素側圧力を制御する。 The oxygen pressure gauge (16) in the oxygen line (10) measures the pressure in the pressure vessel (1), and there is no difference between the measured value and the hydrogen pressure measured by the hydrogen pressure gauge (21). Thus, signals for controlling these are sent to the oxygen pressure control valve (11) and the water flow rate control valve (15). In this way, the oxygen / hydrogen differential pressure control is based on the hydrogen pressure, and the oxygen side command value is output to control the oxygen side pressure so as to follow it.
上記構成の高圧容器収納型水電解水素発生装置において、給水ライン(5) の給水ポンプ(4) を駆動させて電解用の水を純水タンク(3) から給水ライン(5) を経て水電解槽(2) の陽極側へ供給する。水電解で発生した水素は水電解槽(2) の陰極側に連通している圧力容器(1) 内で水と気液分離され、水素ライン(7) を経て水素タンク(6) へ送られ、ここに高圧状態で蓄えられ、必要に応じて水素ディスペンサー等の所望箇所へ供給される。水電解で発生した酸素は酸素ライン(10)を経て水電解槽(2) から酸素気液分離器(22)へ送られ、ここで水と気液分離され、さらに酸素ライン(10)を経て所望箇所へ供給される。 In the high-pressure vessel-accommodated water electrolysis hydrogen generator configured as described above, the water supply pump (4) of the water supply line (5) is driven to electrolyze water for electrolysis from the pure water tank (3) through the water supply line (5). Supply to the anode side of the tank (2). Hydrogen generated by water electrolysis is separated from water and gas-liquid in a pressure vessel (1) communicating with the cathode side of the water electrolysis tank (2), and sent to the hydrogen tank (6) via the hydrogen line (7). Here, it is stored in a high-pressure state, and supplied to a desired location such as a hydrogen dispenser as necessary. Oxygen generated by water electrolysis is sent from the water electrolysis tank (2) to the oxygen gas-liquid separator (22) through the oxygen line (10), where it is separated from water and gas-liquid, and further through the oxygen line (10). It is supplied to a desired location.
高圧容器収納型水電解水素発生装置を常圧もしくは定常圧力より低い状態から立上げる際には、水素タンク(6) 内に蓄えられた高圧水素を水素供給ライン(17)を経て圧力容器(1) へ供給し、同容器(1) 内の水素圧を高める。これと同時に、この圧力と差圧がなるべく生じないように、好ましくは１ＭＰａ以下になるように、純水タンク(3) から水電解槽(2) の陽極側へ供給する電解用の水の圧力を調整する。 When starting up the high pressure vessel-accommodating water electrolysis hydrogen generator from the normal pressure or lower than the steady pressure, the high pressure hydrogen stored in the hydrogen tank (6) is passed through the hydrogen supply line (17) to the pressure vessel (1 ) To increase the hydrogen pressure in the vessel (1). At the same time, the pressure of the electrolyzed water supplied from the pure water tank (3) to the anode side of the water electrolysis tank (2) is preferably set to 1 MPa or less so that this pressure and the differential pressure do not occur as much as possible. Adjust.
実施例３
この実施例では、図３に示すように、純水タンク(3) から水電解槽(2) へ水を送る給水ライン(5) 、および、圧力容器(1)の底壁から純水タンク(6)へ水を循環する水循環ライン(12) は、 いずれも圧力容器(1) の底壁を経て水電解槽(2) に直接接続している。
Example 3
In this embodiment, as shown in FIG. 3, the water supply line (5) for sending water from the pure water tank (3) to the water electrolyzer (2), and the pure water tank ( The water circulation line (12) that circulates water to 6) is directly connected to the water electrolyzer (2) through the bottom wall of the pressure vessel (1).
その他の装置構成および装置運転は、実施例１のものと同じである。 Other apparatus configurations and apparatus operations are the same as those in the first embodiment.
(1) ：圧力容器
(2) ：水電解槽
(3) ：純水タンク
(5) ：給水ライン
(6) ：水素タンク
(7) ：水素ライン
(8) ：水素気液分離器
(9) ：水素圧制御弁
(10)：酸素ライン
(11)：酸素圧制御弁
(12)：水循環ライン
(13)：バイパスライン
(14)(15)：水流量制御弁
(16)：酸素側圧力計
(17)：水素供給ライン
(18)：圧力制御弁
(19)(20)：逆止弁
(21)：水素側圧力計
(22)：酸素気液分離器
(23)：リリーフ弁
(1): Pressure vessel
(2): Water electrolysis tank
(3): Pure water tank
(5): Water supply line
(6): Hydrogen tank
(7): Hydrogen line
(8): Hydrogen gas-liquid separator
(9): Hydrogen pressure control valve
(10): Oxygen line
(11): Oxygen pressure control valve
(12): Water circulation line
(13): Bypass line
(14) (15): Water flow control valve
(16): Oxygen side pressure gauge
(17): Hydrogen supply line
(18): Pressure control valve
(19) (20): Check valve
(21): Hydrogen pressure gauge
(22): Oxygen gas-liquid separator
(23): Relief valve
Claims (4)
水素タンクから水素気液分離器へ水素を供給する水素供給ラインが配設され、水素供給ラインに圧力制御弁が設けられていることを特徴とする高圧容器収納型水電解水素発生装置。 A water electrolyzer installed in a pressure vessel, electrolyzing water using a polymer electrolyte membrane, generating oxygen at the anode and hydrogen at the cathode, a water supply line for sending water from the pure water tank to the water electrolyzer, water A hydrogen line for introducing hydrogen generated at the cathode of the electrolytic cell to the hydrogen tank, a hydrogen gas / liquid separator provided on the hydrogen line upstream of the hydrogen tank and separating hydrogen and water, and a hydrogen gas / liquid separator A hydrogen pressure control valve provided in the hydrogen line between the hydrogen tank, an oxygen line for guiding oxygen generated at the anode of the water electrolysis tank to the desired location from the pressure vessel communicating with the anode side, and an oxygen line In a solid polymer type water electrolysis apparatus comprising an oxygen pressure control valve provided,
A high-pressure vessel-accommodating water electrolysis hydrogen generator comprising a hydrogen supply line for supplying hydrogen from a hydrogen tank to a hydrogen gas-liquid separator, and a pressure control valve provided on the hydrogen supply line.
水素タンクから水素気液分離器へ水素を供給する水素供給ラインが配設され、水素供給ラインに圧力制御弁が設けられていることを特徴とする高圧容器収納型水電解水素発生装置。 A water electrolyzer installed in a pressure vessel, electrolyzing water using a polymer electrolyte membrane, generating oxygen at the anode and hydrogen at the cathode, a water supply line for sending water from the pure water tank to the water electrolyzer, water A hydrogen line for introducing hydrogen generated at the cathode of the electrolytic cell to the hydrogen tank from the pressure vessel communicating with the cathode side, a hydrogen pressure control valve provided in the hydrogen line between the pressure vessel and the hydrogen tank, and water electrolysis Solid oxygen comprising an oxygen line that guides oxygen generated at the anode of the tank to a desired location via an oxygen gas-liquid separator and an oxygen pressure control valve provided in the oxygen line downstream of the oxygen gas-liquid separator. In molecular water electrolysis equipment,
A high-pressure vessel-accommodating water electrolysis hydrogen generator comprising a hydrogen supply line for supplying hydrogen from a hydrogen tank to a hydrogen gas-liquid separator, and a pressure control valve provided on the hydrogen supply line.
4. The operation method according to claim 3, wherein the water supply pressure is adjusted so that the pressure difference between the pressure of the hydrogen gas-liquid separator and the pressure of water for electrolysis supplied to the anode side of the water electrolysis tank is within 1 MPa. Driving method.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08239789A (en) * | 1995-03-01 | 1996-09-17 | Shinko Pantec Co Ltd | Hydrogen and oxygen generator |
| JPH08260176A (en) * | 1995-03-23 | 1996-10-08 | Mitsubishi Corp | High-purity gaseous hydrogen and oxygen generator |
| JP2002038290A (en) * | 2000-07-26 | 2002-02-06 | Shinko Pantec Co Ltd | Hydrogen/oxygen supplying system |
| JP2003096587A (en) * | 2001-09-21 | 2003-04-03 | Mitsubishi Heavy Ind Ltd | Gas generator |
| JP2004124148A (en) * | 2002-10-01 | 2004-04-22 | Mitsubishi Heavy Ind Ltd | Method for controlling pressure of generated hydrogen, and hydrogen-generating apparatus |
-
2005
- 2005-01-19 JP JP2005011613A patent/JP4706263B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08239789A (en) * | 1995-03-01 | 1996-09-17 | Shinko Pantec Co Ltd | Hydrogen and oxygen generator |
| JPH08260176A (en) * | 1995-03-23 | 1996-10-08 | Mitsubishi Corp | High-purity gaseous hydrogen and oxygen generator |
| JP2002038290A (en) * | 2000-07-26 | 2002-02-06 | Shinko Pantec Co Ltd | Hydrogen/oxygen supplying system |
| JP2003096587A (en) * | 2001-09-21 | 2003-04-03 | Mitsubishi Heavy Ind Ltd | Gas generator |
| JP2004124148A (en) * | 2002-10-01 | 2004-04-22 | Mitsubishi Heavy Ind Ltd | Method for controlling pressure of generated hydrogen, and hydrogen-generating apparatus |
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