KR102265486B1 - Fuel cell module, Fuel cell stack module system, water electrolyzer cell module, water electrolyzer cell module system, Fuel cell-water electrolyzer cell module and Fuel cell-water electrolyzer cell module system having function of bypassing fuel and power - Google Patents

Abstract

An embodiment of the present invention provides a fuel cell-water electrolysis composite cell stack tower in which the fuel cell-water electrolysis composite cell stacks are stacked so that external air is sequentially supplied; a supply pipe for supplying any one of water and hydrogen fuel to the fuel cell-water electrolysis composite cell stacks; a drain pipe for discharging a fuel reactant generated by a fuel reaction in the fuel cell-water electrolysis composite cell stack to the outside; a supply valve part installed for each fuel pipe connected to the fuel cell-water electrolysis composite cell stacks of the supply pipe part and including supply valves for selectively supplying or blocking fuel to the fuel cell-water electrolysis composite cell stacks; a power circuit for outputting power generated in the fuel cell-water electrolysis composite cell stacks or for supplying power for water electrolysis; and bypass switches for bypassing the output power or water electrolysis power of the failed fuel cell-water electrolysis composite cell stack when a faulty fuel cell-water electrolysis composite cell stack occurs among the fuel cell-water electrolysis composite cell stack. It provides a fuel cell-water electrolysis complex module comprising; a power bypass circuit comprising.

Description

Fuel cell module, fuel cell module system, water electrolysis module, water electrolysis module system, fuel cell-water electrolysis complex module, and fuel cell-water electrolysis complex module system with power and fuel bypass function {Fuel cell module, fuel cell stack module system, water electrolyzer cell module, water electrolyzer cell module system, Fuel cell-water electrolyzer cell module and Fuel cell-water electrolyzer cell module system having function of bypassing fuel and power}

The present invention relates to a fuel cell and water electrolysis, and more particularly, when a failure occurs in a specific cell stack in a water electrolysis module, a fuel cell module, or a fuel cell-water electrolysis complex module, which is a set of cell stacks composed of a plurality of cell stacks. By bypassing the fuel (gas or water) of the cell stack and the generated output or input power for water electrolysis when it occurs, power generation or water electrolysis of the entire water electrolysis fuel cell or fuel cell-water electrolysis complex module or system Fuel cell module, fuel cell module system, water electrolysis module, water electrolysis module system, fuel cell-water electrolysis combined module and fuel cell-water electrolysis combined module system will be.

Due to the continuous increase in the use of fossil fuels since the industrial revolution, we are facing problems of shortage of fossil fuels and global warming.

^{Accordingly, in order to be able to replace fossil fuels while dramatically reducing the emission of CO 2} as a way to minimize environmental problems, solar power generation, solar power generation, wind power generation, development of bio fuels, or fuel suppression using hydrogen, etc. development of eco-friendly energy has been made continuously.

A fuel cell using double hydrogen is the most environmentally friendly because hydrogen chemically reacts with oxygen to convert water into water and generates electrical energy and heat at the same time, and it emits only water as a result of energy production. As it is attracting attention as an energy source without fear of exhaustion, development for the current hydrogen energy era is continuously being made.

In the case of a fuel cell performing power generation using such hydrogen, in the prior art such as Korean Patent No. 10-0986500 and Korean Patent Publication No. 2005-276511 for large-capacity power generation, fuel cell stacks are stacked to form a fuel cell stack. A method of constructing a tower and generating a large amount of power by connecting fuel cell stacks in series is being applied.

However, in the case of the above-mentioned prior arts, when a failure occurs in a specific fuel cell stack during the construction of the fuel cell stack tower, the fuel cell stack is replaced or hydrogen or hydrogen-containing gas ( Hydrogen rich gas) and electric power could not be bypassed at the same time, so the faulty fuel cell cell stack acted as a cold spot, and a smooth chemical reaction could not be performed, resulting in deterioration of power generation performance.

Therefore, it is required to develop a fuel cell module or a fuel cell module system that is easy to maintain and that can continuously generate power in the event of a failure.

In addition, according to the hydrogenation era, maintenance is easy for a stable supply of hydrogen fuel, and the development of a water electrolysis module or a water electrolysis module system that can continuously perform water electrolysis in the event of a failure is required.

Republic of Korea Patent Registration No. 10-0986500 Republic of Korea Patent Publication No. 2005-276511

In order to solve the problems of the prior art and satisfy the requirements, an embodiment of the present invention provides a fuel cell or a water electrolysis module that is a cell module composed of a plurality of fuel cell cells or water electrolysis cell stacks or a set of cell modules In the event of a failure in a specific cell stack in the system, by bypassing the supply fuel and output power or input power of the cell stack, the total number of power generation or electrolysis modules or water electrolysis module systems for the entire fuel cell module or fuel cell system Provides fuel cell module, fuel cell module system, water electrolysis module, water electrolysis module system, fuel cell-water electrolysis complex module, and fuel cell-water electrolysis complex module system with power and fuel bypass function that enables electrolysis to continue It is a technical problem to be solved.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

In order to achieve the above technical problem, an embodiment of the present invention, a fuel cell cell stack tower in which the fuel cell stacks are stacked so that external air is sequentially supplied; a fuel gas pipe for supplying fuel gas to the fuel cell stacks; a drain pipe for discharging water, which is a product of the fuel gas reaction in the fuel cell stacks, to the outside; a fuel gas valve unit installed for each fuel gas pipe connected to the fuel cell stacks of the fuel gas pipe unit and including fuel gas valves for selectively supplying or blocking fuel gas to the fuel cell stacks; a power output circuit for outputting power generated by the fuel cell stacks; and an output power bypass circuit including bypass switches for bypassing the faulty fuel cell cell to be excluded from the power output circuit when a faulty fuel cell stack occurs in the fuel cell stack. A fuel cell module is provided.

In order to achieve the above technical object, another embodiment of the present invention, two or more fuel cell stack towers in which fuel cell stacks are stacked so that external air is sequentially supplied; a fuel gas pipe for supplying fuel gas to the fuel cell stacks; a drain pipe for discharging water, which is a product of the fuel gas reaction in the fuel cell stacks, to the outside; a fuel gas valve unit installed for each fuel gas pipe connected to the fuel cell stacks of the fuel gas pipe unit and including fuel gas valves for selectively supplying or blocking fuel gas to the fuel cell stacks; a power output circuit for outputting power generated by the fuel cell stacks; and an output power bypass circuit including bypass switches for bypassing the faulty fuel cell cell to be excluded from the power output circuit when a faulty fuel cell stack occurs in the fuel cell stack. A fuel comprising a plurality of fuel cell modules, wherein the fuel cell cell stack towers included in the fuel cell modules are connected in any one of series, parallel, or series-parallel mixed manner within the power output circuit. A battery module system is provided.

The fuel cell stack may further include a sensor that detects and outputs an abnormality of the fuel cell stack.

The fuel cell module or fuel cell module system of the embodiments of the present invention is characterized in that it further includes a control unit configured to perform control of bypassing the failed fuel cell stacks when a failed fuel cell stack occurs. .

In order to achieve the above technical object, another embodiment of the present invention provides a water electrolysis cell stack tower in which water electrolysis cell stacks are stacked so that external water is supplied; a water supply pipe for supplying water to the electrolysis cell stacks; a hydrogen discharge pipe for discharging hydrogen electrolyzed in the water electrolysis cell stacks; a water supply pipe valve part installed for each water supply pipe connected to the water electrolysis cell stacks of the water supply pipe part and including water supply pipe valves for selectively supplying or blocking water to the water electrolysis cell stacks; a power supply circuit for supplying power for water electrolysis to the electrolysis cell stacks; and a water electrolysis power bypass circuit including bypass switches that cut off power supply for water electrolysis to a faulty water electrolysis cell stack in the water electrolysis cell stack and bypass switches including bypass switches provides

In order to achieve the above technical object, another embodiment of the present invention provides two or more water electrolysis cell stack towers in which water electrolysis cell stacks are stacked so that external water is supplied; a water supply pipe for supplying water to the electrolysis cell stacks; a hydrogen discharge pipe for discharging hydrogen electrolyzed in the water electrolysis cell stacks; a water supply pipe valve part installed for each water supply pipe connected to the water electrolysis cell stacks of the water supply pipe part and including water supply pipe valves for selectively supplying or blocking water to the water electrolysis cell stacks; a power supply circuit for supplying power for water electrolysis to the electrolysis cell stacks; and a water electrolysis power bypass circuit including bypass switches that cut off power supply for water electrolysis to the faulty water electrolysis cell stack in the water electrolysis cell stack; and a water electrolysis power bypass circuit including bypass switches. and water electrolysis cell stack towers included in the water electrolysis modules are connected in any one of series, parallel, or series-parallel mixed manner to receive power for the water electrolysis. provide the system.

The water electrolysis module and the water electrolysis cell stack constituting the water electrolysis module system may further include a sensor that detects and outputs an abnormality of the water electrolysis cell stack.

The water electrolysis module or water electrolysis module system of the embodiments of the present invention further includes a control unit that controls to bypass the water and power supplied to the faulty water electrolysis cell stacks when a faulty water electrolysis cell stack occurs It is characterized in that it is configured.

In order to achieve the above technical object, another embodiment of the present invention provides a fuel cell-water electrolysis composite cell stack tower in which a fuel cell-water electrolysis composite cell stack is stacked so that external air is sequentially supplied; a supply pipe for supplying any one of water and hydrogen fuel to the fuel cell-water electrolysis composite cell stacks; a drain pipe for discharging a fuel reactant generated by a fuel reaction in the fuel cell-water electrolysis composite cell stack to the outside; a supply valve part installed for each fuel pipe connected to the fuel cell-water electrolysis composite cell stacks of the supply pipe part and including supply valves for selectively supplying or blocking fuel to the fuel cell-water electrolysis composite cell stacks; a power circuit for outputting power generated in the fuel cell-water electrolysis composite cell stacks or for supplying power for water electrolysis; and bypass switches for bypassing the output power or water electrolysis power of the failed fuel cell-water electrolysis composite cell stack when a faulty fuel cell-water electrolysis composite cell stack occurs among the fuel cell-water electrolysis composite cell stack. It provides a fuel cell configured including; a power bypass circuit including: a water electrolysis module.

In order to achieve the above technical object, another embodiment of the present invention provides a fuel cell-water electrolysis composite cell stack tower in which a fuel cell-water electrolysis composite cell stack is stacked so that external air is sequentially supplied; a supply pipe for supplying any one of water and hydrogen fuel to the fuel cell-water electrolysis composite cell stacks; a drain pipe for discharging a fuel reactant generated by a fuel reaction in the fuel cell-water electrolysis composite cell stack to the outside; a supply valve part installed for each fuel pipe connected to the fuel cell-water electrolysis composite cell stacks of the supply pipe part and including supply valves for selectively supplying or blocking fuel to the fuel cell-water electrolysis composite cell stacks; a power circuit for outputting power generated in the fuel cell-water electrolysis composite cell stacks or for supplying power for water electrolysis; and bypass switches for bypassing the output power or water electrolysis power of the failed fuel cell-water electrolysis composite cell stack when a faulty fuel cell-water electrolysis composite cell stack occurs among the fuel cell-water electrolysis composite cell stack. and a plurality of fuel cell-water electrolysis complex modules configured to include, wherein the fuel cell-water electrolysis complex cell stack towers of the fuel cell-water electrolysis complex modules are in the power output circuit. in serial. It provides a fuel cell-water electrolysis complex module system, characterized in that it is connected in a parallel or series-parallel hybrid method.

The fuel cell-water electrolysis complex module and the fuel cell-water electrolysis complex cell stack constituting the fuel cell-water electrolysis complex module system include a sensor that detects and outputs an abnormality of the fuel cell-water electrolysis complex cell stack It is characterized in that it further comprises.

The fuel cell-water electrolysis composite module or fuel cell-water electrolysis composite module system of the embodiments of the present invention bypasses the faulty fuel cell-water electrolysis composite cell stacks when a faulty fuel cell-water electrolysis composite cell stack occurs. It is characterized in that it is configured to further include a control unit for performing the control.

According to an embodiment of the present invention, when a failure occurs in a specific fuel cell stack in a fuel cell module or a fuel cell module system having a stack of fuel cell stacks to produce large power, the failed fuel cell stack Normal operation of the fuel cell module and fuel cell module system without responding to the failure by blocking the fuel gas and air supplied to the system and bypassing the output power to bypass the failed fuel cell stack. By making it possible to maintain the fuel cell module, it provides the effect of facilitating the capacity increase of the fuel cell module and the fuel cell module system.

According to another embodiment of the present invention, when a failure occurs in a specific water electrolysis cell stack in a water electrolysis module having a stack of water electrolysis cell stacks for mass production of hydrogen and oxygen or a water electrolysis module system, the faulty power faucet By blocking the water and power supplied to the cell stack and bypassing the faulty water electrolysis cell stack to exclude it from the production of hydrogen and oxygen, the water electrolysis module and the water electrolysis module without performing a response to the occurrence of a failure By allowing the normal operation of the system to be maintained, an effect of facilitating the increase in capacity of the water electrolysis module or the water electrolysis module system is provided.

According to another embodiment of the present invention, a fuel cell-water electrolysis composite module or fuel having a stack of fuel cell-water electrolysis composite cell stacks configured to parallel the production of electricity using hydrogen and production of hydrogen using water When a failure occurs in a specific fuel cell-water electrolysis complex cell stack in the cell-water electrolysis complex module system, the fuel and output power supplied to the failed fuel cell-water electrolysis complex cell stack are bypassed. Thus, the fuel cell-water electrolysis complex module or fuel cell-water electrolysis complex module or fuel cell-water electrolysis complex module or fuel cell-water electrolysis complex module or fuel cell-water electrolysis complex module can be maintained by maintaining normal operation of the fuel cell-water electrolysis complex module and fuel cell-water electrolysis complex module system It provides the effect of facilitating the increase in capacity of the complex module system.

The effects of the present invention are not limited to the above-described effects, and it should be understood to include all effects inferred from the configuration of the invention described in the detailed description or claims of the present invention.

The effects of the present invention are not limited to the above effects, but it should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a view of a fuel cell module 2 according to an embodiment of the present invention.
FIG. 2 is a view showing a fuel gas and power bypass state in the faulty fuel cell cell stack 13 of the fuel cell module 2 of FIG. 1 .
3 is a view of a water electrolysis module 1 of an embodiment of the present invention.
4 is a view showing a water and power bypass state in the faulty water electrolysis cell stack 113 of the water electrolysis module 1 of FIG. 3 .
5 is a view of a fuel cell-water electrolysis composite module 3 according to an embodiment of the present invention.
6 is a diagram illustrating a fuel gas and power bypass state in the faulty fuel cell-water electrolysis composite cell stack 13 of the fuel cell-water electrolysis composite module 3 of FIG. 5 .
7 is a water electrolysis module system 4 having a configuration in which a plurality of water electrolysis, fuel cells or fuel cell-water electrolysis complex cell stack towers 110, 10, and 1100 of another embodiment of the present invention are connected in series and interlock. , a view showing the fuel cell module system 5 or the fuel cell-water electrolysis complex module system 6 collectively.
8 is a water electrolysis module system 7 having a configuration in which a plurality of water electrolysis, fuel cells, or fuel cell-water electrolysis complex cell stack towers 110, 10, and 1100 of another embodiment of the present invention are connected in parallel and interlocked. , a view showing the fuel cell module system 8 or the fuel cell-water electrolysis complex module system 9 collectively.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member interposed therebetween. "Including cases where In addition, when it is said that a part "includes" a certain component, it means that other components may be further provided without excluding other components unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view of a fuel cell module 2 according to another embodiment of the present invention, and FIG. 2 is a fuel gas and power bypass state in the faulty fuel cell cell stack 13 of the fuel cell module 2 of FIG. 1 . It is a drawing showing

1 and 2, the fuel cell module 2 according to an embodiment of the present invention includes a fuel cell stack tower 10 in which fuel cell stacks 11 are stacked so that external air is sequentially supplied, and the The fuel gas pipe part 20 piped to supply fuel gas as fuel for power generation to the fuel cell cell stacks 11 , and unreacted water generated by the fuel cell reaction in the fuel cell cell stacks 11 . The drain pipe part 30 for discharging the residual fuel gas to the outside, is installed for each fuel gas pipe 21 connected to the fuel cell cell stacks 11 of the fuel gas pipe part 20, and is selective to the fuel cell stacks The fuel gas valve unit 40 including fuel gas valves 41 for supplying or blocking fuel gas to the The power output circuit 50 and the fuel cell stacks 11 are connected in parallel with the power output circuit 50 , and the faulty fuel cell stack 13 of the fuel cell stack 11 is The output power bypass circuit 60 including bypass switches 61 for bypassing the output to the power output circuit 50 of the adjacent normal fuel cell stack may be included.

In the above configuration, the fuel gas may be hydrogen or a hydrogen rich gas containing hydrogen as a fuel for the fuel cell reaction.

The fuel cell stack tower 10 may be configured by stacking fuel cell stacks 11 so that air supplied from the upper portion is sequentially supplied to the lower fuel cell stack 11 .

The fuel cell cells included in the fuel cell stacks 11 receive hydrogen gas to the anode side and air to the cathode side, and then, after the hydrogen at the anode side emits electrons and becomes positive ions, it is directed to the cathode side through the separator. It moves, and on the cathode side, oxygen is supplied with electrons emitted from hydrogen and combines with hydrogen cations to produce electricity by a chemical reaction to generate water. The fuel cell cells may be configured such that, when the separator is configured to transmit both hydrogen ions and oxygen ions, a fuel cell reaction is performed on both the anode and the cascade side to generate water and electricity.

The fuel cell stack 11 of the above configuration may further include a sensor S that detects and outputs a failure of the fuel cell stack 11 . In addition, the fuel cell module 2 receives and analyzes the detection signals of the sensors S, and controls to bypass the faulty fuel cell cell stacks 13 when a faulty fuel cell cell stack 13 occurs. It is characterized in that it is configured to further include a control unit 100 to perform.

The sensor S may include a temperature sensor, a current sensor, a voltage sensor, a hydrogen detection sensor, and the like, and may be configured to output a detection signal to the control unit 100 for controlling the bypass of the fuel cell stack. The sensors (S) may be connected to the controller 100 by wire or wirelessly, and may be configured as IoT sensors.

The fuel gas pipe part 20 is configured to include fuel supply pipes 21 for supplying fuel gas to the fuel cell stacks 11 .

The drain pipe part 30 is a drain pipe connected to the fuel cell stack 11 so as to discharge water and unreacted fuel gas generated by half of the fuel gas inside the fuel cell stack 11 . 31) are included.

The fuel gas valve unit 40 is respectively installed in the fuel gas pipe 21 and opens and closes according to the control of the control unit 100 to supply or block fuel gas to the fuel cell cell stacks 11 . It is configured to include valves (41).

The power output circuit 50 is configured to connect the adjacent fuel cell stacks 11 in series to output power by integrating the current and voltage generated in the fuel cell stacks 11 .

The output power bypass circuit 60 is switched opposite to a switch that short-circuits or opens an electrical connection between an output terminal and an input terminal between adjacent cells, and is switched between the output terminal and the input terminal between the adjacent cells. The output terminal of the adjacent fuel cell stack 11 and the input terminal of the next stage of the fuel cell stack 11 are connected so that the switch performing the electrical connection is opened when shorted, and shorted when opened. It is configured to include bypass switches 61 connected in series in parallel with the fuel cell cell stacks 11 to connect them.

In the fuel cell module 2 of FIG. 1 having the above-described configuration, when a failure occurs in a specific fuel cell stack 13 while generating electricity using fuel gas and air, the corresponding fuel cell stack 11 . At the same time as blocking the supply of fuel gas to the fuel cell stack 11 , a bypass function of bypassing and transmitting power input from the adjacent fuel cell stack 11 to the next fuel cell stack 11 is performed.

Specifically, the control unit 100 that receives a signal such as a temperature, voltage, current, or hydrogen gas detection signal measured by the sensor S configured in the faulty fuel cell cell stack 13 detects whether there is a fault in the received signal. Then, the bypass switch 63 connected in parallel to the fuel cell stack 11 between the input terminal and the output terminal of the faulty fuel cell stack 13 is short-circuited. When the bypass switch 61 is short-circuited, the output power of the normal fuel cell stack 11 input to the input terminal of the faulty fuel cell stack 13 does not pass through the faulty fuel cell cell stack 13 . It is bypassed so as to be input to the power input terminal of the normally operated fuel cell stack 11 positioned next through the bypass short-circuit switch 63 .

In this case, the control unit 100 shields the fuel gas valve 43 connected to the fuel gas pipe 21 of the faulty fuel cell stack 13 on which the power bypass has been performed, so that the faulty fuel cell cell stack 13 . Also cut off the fuel gas supply to the furnace.

3 is a view of a water electrolysis module 1 according to an embodiment of the present invention, and FIG. 4 is a water electrolysis module 1 of FIG. 3 with water and electrolysis power as fuel in the faulty water electrolysis cell stack 113 of FIG. 3 . It is a diagram showing the pass state.

3 and 4 , the water electrolysis module 1 of another embodiment of the present invention performs water electrolysis so that water containing a small amount of external hydrogen as a water electrolysis fuel is supplied to each water electrolysis cell stack 111 . The water electrolysis cell stack tower 110 in which the cell stacks 111 are stacked, the water supply pipe 200 piped to supply water to the water electrolysis cell stacks 111 , and the water electrolysis cell stacks 111 in the A hydrogen discharge pipe part 300 for discharging hydrogen and residual water generated by water electrolysis of water, and a water supply pipe 221 connected to the water electrolysis cell stacks 111 of the water supply pipe part 200 are installed for each The water supply pipe valve part 400 including water supply pipe valves 441 for selectively supplying or blocking water to the electrolysis cell stacks, and the electrolysis power of the water electrolysis cell stack tower 110 are supplied in series A power supply circuit 500 for supplying power for water electrolysis by connecting the stacked water electrolysis cell stacks 111, and the power supply circuit 500 to each of the positive and negative terminals of the water electrolysis cell stacks 111 and the electrolytic power bypass switches 611 installed in parallel with the electrolytic cell stack 111 to bypass the electrolytic power supplied to the faulty electrolytic cell stack 113 of the electrolytic cell stack 111 and bypass switching. It may be configured to include a water electrolytic power bypass circuit 610 that includes.

In the above configuration, each of the water electrolysis cell stacks 111 constituting the water electrolysis cell stack tower 110 generates a small amount of hydrogen as water electrolysis fuel supplied through the water supply pipe 221 of the water supply pipe part 200 . The water electrolysis cell stacks 111 are stacked so as to simultaneously receive the water including the water.

The water electrolysis cell stacks 111 are configured to include an anode, an anode, and an electrolyte that transfers both hydrogen ions or oxygen ions or hydrogen ions and oxygen ions therein.

In the case of the above-described configuration, when the electrolyte is an electrolyte that transmits oxygen ions, when DC power is supplied to the anode and the cathode after water is injected, hydrogen is generated by the electrolysis of water at the anode, and oxygen ions are transferred to the cathode through the electrolyte. It moves and is discharged through the air passage (Air). In contrast, when the electrolyte is an electrolyte that transfers hydrogen ions, when power is supplied to the anode and the cathode after water is injected, oxygen is generated by the electrolysis of water at the cathode, and the hydrogen ions move to the anode through the electrolyte. is emitted In addition, when the electrolyte is an electrolyte that transmits both hydrogen ions and oxygen ions, electrolysis of water occurs at both the anode and the cathode, so that hydrogen is generated at the anode and oxygen is generated at the cathode.

The electrolytic cell stacks 111 of the above-described configuration may further include a sensor S for detecting and outputting a failure of the electrolytic cell stack 111 . In addition, the electrolysis module 1 receives and analyzes the detection signals of the sensors S, and controls to bypass the faulty water electrolysis cell stacks 113 when a faulty water electrolysis cell stack 113 occurs. It is characterized in that it is configured to further include a control unit 900 to perform.

The sensor (S) is composed of a temperature sensor, a current sensor, a voltage sensor, a hydrogen detection sensor, a water leak sensor, a quantity sensor, etc. to receive a detection signal and output it to the control unit 900 for controlling the cell bypass. . The sensors S may be connected to the controller 900 by wire or wirelessly, and may be configured as IoT sensors.

The water supply pipe 200 includes water supply pipes 221 for supplying water to the electrolysis cell stacks 111 .

The hydrogen discharge pipe part 300 is configured to include hydrogen discharge pipes 331 for discharging hydrogen and residues generated by decomposition of water in the water electrolysis cell stacks 111 .

The water supply pipe valve part 400 is installed in each of the water supply pipes 221 and is opened and closed according to the control of the controller 900 to supply or block water to the water electrolysis cell stack 111 . It is configured to include valves 441 .

The power supply circuit unit 500 is configured to supply power for water electrolysis to the electrolytic cell stacks 111 stacked to receive electrolysis power in series.

The electrolytic power bypass circuit 600 is connected in parallel to each of the respective electrolytic cell stacks 111 with respect to the power supply circuit unit 500 of the electrolytic cell stacks 111 and then bypasses each electrolytic power. It is configured to be switched by the pass switch 611 and includes an electrolytic power bypass circuit 610 configured to bypass electrolytic power supplied to each electrolytic cell stack 111 .

In the water electrolysis module 1 of FIGS. 2 and 3 having the above configuration, a failure occurs in a specific water electrolysis cell stack 113 while producing hydrogen and oxygen by electrolyzing water using water and power supply. In this case, by blocking the supply of water and water electrolysis power to the water electrolysis cell stack 113 , the water electrolysis cell stack 113 having a failure in the water electrolysis module 1 is excluded from the production of hydrogen and oxygen. function will be performed.

Specifically, the control unit 900 that receives signals such as temperature, voltage, current, water level, leak, hydrogen or oxygen gas detection signal measured by the sensor S configured in the faulty water electrolysis cell stack 113 is the received signal After detecting whether there is a failure in the , when it is determined that there is a failure, the bypass switch 611 connected in parallel with the receiving electrolysis power supply circuit of the faulty receiving electrolysis cell stack 113 is short-circuited and at the same time, the water supply and By shielding the 441 , the bypass control for excluding the faulty water electrolysis cell stack 113 from the water electrolysis driving by the water electrolysis cell stack tower 110 is performed.

In the description of FIGS. 3 and 4 above, it has been described that the water electrolysis cell stacks 111 stacked on the water electrolysis cell stack tower 110 are stacked to receive electrolytic power in series, but the water electrolysis cell stack ( 111) may be stacked so as to receive electrolytic power in parallel in parallel as needed.

5 is a view of a fuel cell-water electrolysis composite module 3 according to an embodiment of the present invention, and FIG. 6 is a faulty fuel cell-water electrolysis composite cell stack of the fuel cell-water electrolysis composite module 3 of FIG. 5 ( 13) is a diagram showing the fuel gas and power bypass state.

5 and 6, in another embodiment of the present invention, a fuel cell-water electrolysis composite cell stack 1111 is stacked such that external air is sequentially supplied, and a fuel cell-water electrolysis composite cell stack tower 1100. , the fuel cell-water electrolysis composite cell stack 1111 , a supply pipe part 1200 for supplying either water or hydrogen fuel, and fuel gas in the fuel cell-water electrolysis composite cell stack 1111 . The fuel cell-water electrolysis complex of the drain pipe part 1300 and the supply pipe part 1300 for discharging fuel reactants such as water or hydrogen generated by any one of the fuel reaction of oxidation and reduction of air and water electrolysis to the outside. A supply valve 1410 installed for each fuel pipe 1210 connected to the cell stacks 1111 to selectively supply or block any one of hydrogen or water fuel to the fuel cell-water electrolysis composite cell stack 1111 . ) including a supply valve unit 1400, the fuel cell-power circuit 1500 for outputting power generated in the water electrolysis complex cell stacks 1111 or supplying power for water electrolysis, and the fuel cell- When a faulty fuel cell-water electrolysis composite cell stack 1113 occurs in the water electrolysis composite cell stack 1111, the faulty fuel cell-water electrolysis composite cell stack 1113 bypasses the output power or electrolysis power Provided is a fuel cell-water electrolysis complex module (3) configured including a power bypass circuit (1600) including bypass switches (1610).

The fuel cell-water electrolysis composite cell constituting the above-described fuel cell-water electrolysis composite cell stack 111 includes an anode, an air electrode, and an electrolyte that transfers both hydrogen or oxygen ions, so that hydrogen gas flows through the anode. When supplied, it operates as a fuel cell, and when water is supplied, it operates as a water electrolysis cell, so that the functions of the fuel cell and water electrolysis can be selectively performed.

When the fuel cell-water electrolysis composite cell stack 111 operates as a fuel cell cell stack, the fuel cell cells receive hydrogen gas to the anode side and air to the cathode side, and then the hydrogen at the anode side emits electrons. After becoming cations, they move to the cathode side through the separation membrane, and on the cathode side, the electrons emitted from hydrogen are supplied with oxygen and combined with hydrogen cations to produce electricity by a chemical reaction to generate water.

In contrast, when the fuel cell-water electrolysis composite cell stack 111 operates as a water electrolysis cell stack, water containing a small amount of hydrogen is supplied to the anode side, and electrolysis power is supplied through the anode and cathode sides, The supplied water is decomposed into hydrogen and oxygen to produce hydrogen and oxygen.

The fuel cell-water electrolysis composite cell stack 1111 constituting the fuel cell-water electrolysis composite module 3 is a sensor (S) that detects and outputs an abnormality of the fuel cell-water electrolysis composite cell stack 1111 . ) is further included.

In addition, in the fuel cell-water electrolysis composite module of the embodiment of the present invention having the above configuration, when a faulty fuel cell-water electrolysis composite cell stack 1113 occurs, the faulty fuel cell-water electrolysis composite cell stack 1113 is A control unit 1000 that cuts off the supply of fuel and bypasses the generated output power or power for water electrolysis via the faulty fuel cell-water electrolysis composite cell stack 1113 or not supplied further consists of including

In another embodiment of the present invention, the water electrolysis cell stack tower 110, the fuel cell cell stack tower 10, or the fuel cell-water electrolysis cell stack tower 1100 of FIGS. system can be configured.

7 illustrates a configuration in which a plurality of water electrolysis cell stack towers 110, a fuel cell cell stack tower 10, or a fuel cell-water electrolysis complex cell stack tower 1100 of another embodiment of the present invention are connected in series and interlock. Branch is a view showing the water electrolysis module system 4, the fuel cell module system 5, or the fuel cell-water electrolysis complex module system 6 collectively.

In FIG. 7 , the water electrolysis module system 4 includes two or more water electrolysis cell stack towers 110 in which water electrolysis cell stacks are stacked so that external water is supplied, and a small amount of hydrogen as a fuel to the water electrolysis cell stacks. A water supply pipe part 200 for supplying water including a hydrogen discharge pipe part 300 for discharging water and residual hydrogen generated by the water electrolysis reaction of the water electrolysis cell stacks 111, the water supply pipe part 200 ) installed for each water supply pipe 221 connected to the water electrolysis cell stacks 111 of the water electrolysis cell stack 111 including water supply pipe valves 441 for selectively supplying or blocking water to the water electrolysis cell stacks 111 A water supply pipe valve part 400 , a power supply circuit 500 for supplying power for water electrolysis to the water electrolysis cell stacks 111 , and a faulty water electrolysis cell stack 113 of the water electrolysis cell stack 111 ) and a plurality of electrolysis modules (1) including; a water electrolysis power bypass circuit 610 including bypass switches 611 that perform bypass switching to cut off the electrolysis power supplied to the The water electrolysis cell stack towers 110 included in the water electrolysis modules 1 are characterized in that they are connected in series to receive power for the water electrolysis.

The water electrolysis cell stacks 1111 constituting the water electrolysis module system 4 may further include a sensor S that detects and outputs an abnormality of the water electrolysis cell stack. In addition, the electrolysis module system 4 having the above configuration performs control of bypassing the water and power supplied to the faulty receiving electrolysis cell stack 1113 when the faulty receiving electrolytic cell stack 1113 occurs. It is characterized in that it is configured to further include a control unit (900).

In addition, in FIG. 7 , the fuel cell module system 5 according to another embodiment of the present invention includes a fuel cell cell stack tower 10 in which fuel cell stacks 11 are stacked so that external air is sequentially supplied, and the fuel cell The fuel gas pipe part 20 piped to supply fuel gas as fuel for power generation to the cell stacks 11 , water generated by a fuel cell reaction in the fuel cell cell stacks 11 and unreacted residual fuel The drain pipe part 30 for discharging gas to the outside is installed for each fuel gas pipe 21 connected to the fuel cell stacks 11 of the fuel gas pipe part 20 to selectively fuel the fuel cell stacks. A fuel gas valve unit 40 including fuel gas valves 41 for supplying or blocking gas, and a power output for outputting power generated from the fuel cell stacks 11 of the fuel cell cell stack tower 10 . The circuit 50 and the fuel cell stacks 11 are connected in parallel with the power output circuit 50 to output an output of the faulty fuel cell stack 13 among the fuel cell stacks 11 . Includes a plurality of fuel cell modules (2) configured to include an output power bypass circuit (60) including bypass switches (61) for bypassing the power output circuit (50) of an adjacent normal fuel cell stack And, the fuel cell cell stack towers (10) included in the fuel cell modules (2) are connected in series in the power output circuit (50) and are configured to interwork with each other.

The fuel cell stack 11 may further include a sensor S that detects and outputs an abnormality of the fuel cell stack. In addition, the fuel cell module system 5 having the above configuration further includes a control unit 100 configured to control to bypass the faulty fuel cell cell stacks 13 when a faulty fuel cell cell stack 12 occurs. is composed by

In addition, in FIG. 7 , in the fuel cell-water electrolysis composite module system 5 of another embodiment of the present invention, the fuel cell-water electrolysis composite cell stack 1111 is stacked so that external air is sequentially supplied. The fuel cell-water electrolysis complex cell stack (1100), the fuel cell-water electrolysis complex cell stack (1111), a supply pipe part 1200 for supplying any one fuel of water or hydrogen, the fuel cell-water electrolysis complex cell stack ( 1111) a drain pipe part 1300 for discharging fuel reactants such as water or hydrogen generated by any one fuel reaction of oxidation reduction or water electrolysis of fuel gas and air to the outside, the supply pipe part 1300 of the fuel cell-water electrolysis composite cell stacks 1111 of each of the fuel pipes 1210 connected to the fuel cell-water electrolysis composite cell stacks 1111 of A supply valve unit 1400 including supply valves 1410 for supplying or blocking , the fuel cell-power to output power generated in the water electrolysis composite cell stack 1111, or to supply power for water electrolysis When a faulty fuel cell-water electrolysis composite cell stack 1113 occurs among the circuit 1500 and the fuel cell-water electrolysis composite cell stack 1111 , the faulty fuel cell-water electrolysis composite cell stack 1113 is output and a power bypass circuit 1600 including bypass switches 1610 for bypassing electric power or electrolytic power.

The fuel cell-water electrolysis composite cell stack 1111 is configured to further include a sensor S that detects and outputs an abnormality of the fuel cell-water electrolysis composite cell stack 1111, and the fuel cell-water electrolysis composite cell stack 1111 The complex module system 9 further includes a control unit 900 that controls to bypass the failed fuel cell-water electrolysis complex cell stack 1113 when a faulty fuel cell-water electrolysis complex cell stack 1113 occurs. It is characterized in that it comprises.

8 is a configuration in which a plurality of water electrolysis cell stack towers 110, fuel cell cell stack towers 10, or fuel cell-water electrolysis composite cell stack towers 1100 of another embodiment of the present invention are connected in parallel and interlocked. Branch is a diagram of a water electrolysis module system 7 , a fuel cell module system 8 or a fuel cell-water electrolysis combined module system 9 .

Each of the water electrolysis cell stack tower 110, the fuel cell cell stack tower 10, or the fuel cell constituting the water electrolysis module system, the fuel cell module system, or the fuel cell water electrolysis complex module system having the configuration of FIG. The water electrolysis complex cell stack towers 1100 may be configured to interwork in parallel with each other as shown in FIG. 8, and have the same configuration as FIG. 7 except that the power circuit is configured in parallel, and thus detailed description thereof will be omitted. .

In addition, although not shown in the drawings, in the systems of FIGS. 7 and 8 , the above-described plurality of electrolysis cell stack towers 110 , fuel cell cell stack towers 10 or fuel cell-water electrolysis complex cell stack towers ( 1100) may be configured to mix series and parallel as needed.

That is, in the water electrolysis module system 1, the fuel cell module system 2 or the fuel cell-water electrolysis complex module system 3 according to another embodiment of the present invention, a plurality of electrolysis modules 1, a fuel cell module ( 2) Alternatively, the fuel cell-water electrolysis complex modules (3) are connected in series, parallel or series-parallel mixture according to the required capacity, and the water electrolysis module system (4, 7), the fuel cell module system (5, 8) or the fuel It becomes possible to increase the capacity of the battery-water electrolysis complex module systems 6 and 9 . At the same time, each of the water electrolysis cell stack 111, the fuel cell cell stack 11, or the fuel cell-water electrolysis complex cell stack 1111 operating in the large-sized system operates the faulty water electrolysis cell stack 113, Bypass for easily excluding the faulty fuel cell cell stack 13 or the faulty fuel cell-water electrolysis composite cell stack 1113 can be performed. It improves the reliability of operation and facilitates maintenance and management by minimizing the operation stop for the failure recovery of an enlarged water electrolysis, fuel cell, or fuel cell-water electrolysis complex module system.

The description of the present invention described above is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

1: Fuel cell module
2: Water electrolysis module
3: Fuel cell water electrolysis complex module
4: series water electrolysis module system
5: Series fuel cell module system
6: Series fuel cell-water electrolysis complex module system
7: Parallel water electrolysis module system
8: Parallel fuel cell module system
9: Parallel fuel cell-water electrolysis complex module system
10: fuel cell cell stack tower
11: Fuel cell cell stack
13: faulty fuel cell cell stack
20: fuel gas pipe part
21: fuel gas pipe
30: drain pipe part
31: drain pipe
40: fuel gas valve part
41: fuel gas valve
43: shut off fuel gas valve
50: power output circuit
60: output power bypass circuit
61: bypass switch
63: bypass short-circuit switch
90: air valve unit
91: air valve
93: shut-off air valve
100, 900, 1000: control unit
110: water electrolysis cell stack tower
111: water electrolysis cell stack
200: water supply pipe part
221: water supply pipe
300: hydrogen discharge pipe part
331: hydrogen discharge pipe
400: water supply pipe valve part
441: water supply line valve
500; power supply circuit
610: water electrolytic power bypass circuit
611: electrolytic power bypass switch
1100: fuel cell-water electrolysis complex cell stack tower
1111: fuel cell-water electrolysis composite cell stack
1200: supply pipe part
1210: fuel pipe
1300: drain pipe part
1310: drain pipe
1400: supply valve unit
1410: supply valve
1430: shut-off supply valve
1500: output-water electrolysis power circuit
1600: bypass circuit
1610: bypass switch
S: sensor

Claims (18)

a fuel cell stack tower in which fuel cell stacks are stacked so that external air is sequentially supplied;
a fuel gas pipe for supplying fuel gas to the fuel cell stacks;
a drain pipe for discharging water, which is a product of the fuel gas reaction in the fuel cell stacks, to the outside;
a fuel gas valve unit including fuel gas valves installed for each fuel gas pipe connected to the fuel cell stacks of the fuel gas pipe unit and selectively supplying or blocking fuel gas to the fuel cell stacks;
a power output circuit for outputting power generated by the fuel cell stacks; and
an output power bypass circuit including bypass switches for bypassing the faulty fuel cell cell to be excluded from the power output circuit when a faulty fuel cell stack occurs in the fuel cell stack; and
The fuel cell module according to claim 1, further comprising: a control unit configured to control to bypass the fuel gas and power supplied to the failed fuel cell cell at the same time when a faulty fuel cell cell occurs. According to claim 1, wherein the fuel cell cell,
and a sensor for detecting and outputting an abnormality of the fuel cell cell. delete two or more fuel cell stack towers in which fuel cell stacks are stacked so that external air is sequentially supplied;
a fuel gas pipe for supplying fuel gas to the fuel cell stacks;
a drain pipe for discharging water, which is a product of the fuel gas reaction in the fuel cell stacks, to the outside;
a fuel gas valve unit including fuel gas valves installed for each fuel gas pipe connected to the fuel cell stacks of the fuel gas pipe unit and selectively supplying or blocking fuel gas to the fuel cell stacks;
a power output circuit for outputting power generated by the fuel cell stacks; and
an output power bypass circuit including bypass switches for bypassing the faulty fuel cell cell to be excluded from the power output circuit when a faulty fuel cell stack occurs in the fuel cell stack; including a fuel cell module of
The fuel cell stack towers included in the fuel cell modules are characterized in that they are connected in any one of series, parallel, or series-parallel mixed manner in the power output circuit,
The fuel cell module system according to claim 1, further comprising: a control unit configured to simultaneously bypass fuel gas and power supplied to the failed fuel cell cell stack when a faulty fuel cell cell stack occurs. 5. The method of claim 4, wherein the fuel cell stack comprises:
and a sensor for detecting and outputting an abnormality in the fuel cell stack. delete a water electrolysis cell stack tower in which water electrolysis cell stacks are stacked so that external water is supplied;
a water supply pipe for supplying water to the electrolysis cell stacks;
a hydrogen discharge pipe for discharging hydrogen electrolyzed in the water electrolysis cell stacks;
a water supply pipe valve part installed for each water supply pipe connected to the water electrolysis cell stacks of the water supply pipe part and including water supply pipe valves for selectively supplying or blocking water to the water electrolysis cell stacks;
a power supply circuit for supplying power for water electrolysis to the electrolysis cell stacks; and
and a water electrolysis power bypass circuit including bypass switches performing bypass switching to cut off power supply for water electrolysis to the faulty water electrolysis cell stack among the electrolysis cell stacks;
The water electrolysis module further comprising: when a faulty receiving electrolysis cell stack occurs, a control unit configured to control to bypass the water and power supplied to the faulty receiving electrolytic cell stack at the same time. 8. The method of claim 7, wherein the electrolytic cell stacks are:
The water electrolysis module, characterized in that it further comprises a sensor for detecting and outputting an abnormality of the electrolysis cell stack. delete two or more water electrolysis cell stack towers in which water electrolysis cell stacks are stacked so that external water is supplied;
a water supply pipe for supplying water to the electrolysis cell stacks;
a hydrogen discharge pipe for discharging hydrogen electrolyzed in the water electrolysis cell stacks;
a water supply pipe valve part installed for each water supply pipe connected to the water electrolysis cell stacks of the water supply pipe part and including water supply pipe valves for selectively supplying or blocking water to the water electrolysis cell stacks;
a power supply circuit for supplying power for water electrolysis to the electrolysis cell stacks; and
Water electrolysis modules including a; water electrolysis power bypass circuit including bypass switches that perform bypass switching to cut off the power supply for water electrolysis to the faulty water electrolysis cell stack among the electrolysis cell stacks and ,
The water electrolysis cell stack towers included in the water electrolysis modules are connected in any one of series, parallel, or series-parallel mixed manner, characterized in that they are configured to receive power for the water electrolysis,
The water electrolysis module system according to claim 1, further comprising: a control unit configured to control to bypass water and power supplied to the faulty electrolysis cell stack at the same time when a faulty electrolysis cell stack occurs. 11. The method of claim 10, wherein the electrolytic cell stack,
The water electrolysis module system, characterized in that it further comprises a sensor for detecting and outputting an abnormality of the electrolysis cell stack. delete a fuel cell-water electrolysis composite cell stack tower in which fuel cell-water electrolysis composite cell stacks are stacked so that external air is sequentially supplied;
a supply pipe for supplying any one of water and hydrogen fuel to the fuel cell-water electrolysis composite cell stacks;
a drain pipe for discharging a fuel reactant generated by a fuel reaction in the fuel cell-water electrolysis composite cell stack to the outside;
A supply valve unit including supply valves installed for each fuel pipe connected to the fuel cell-water electrolysis composite cell stacks of the supply pipe part and selectively supplying or blocking fuel to the fuel cell-water electrolysis composite cell stacks ;
a power circuit for outputting power generated in the fuel cell-water electrolysis composite cell stacks or for supplying power for water electrolysis; and
When a faulty fuel cell-water electrolysis composite cell stack occurs among the fuel cell-water electrolysis composite cell stack, bypass switches for bypassing the output power or water electrolysis power of the faulty fuel cell-water electrolysis composite cell stack are included. and a power bypass circuit that
When a faulty fuel cell-water electrolysis composite cell stack occurs, the control unit further comprises a control unit configured to simultaneously bypass the fuel and output power or electrolysis power supplied to the faulty fuel cell-water electrolysis composite cell stack. A fuel cell-water electrolysis complex module with ◈Claim 14 was abandoned at the time of payment of the registration fee.◈ The fuel cell-water electrolysis composite according to claim 13, wherein the fuel cell-water electrolysis composite cell stack further comprises a sensor that detects and outputs an abnormality of the fuel cell-water electrolysis composite cell stack. module. delete a fuel cell-water electrolysis composite cell stack tower in which fuel cell-water electrolysis composite cell stacks are stacked so that external air is sequentially supplied;
a supply pipe for supplying any one of water and hydrogen fuel to the fuel cell-water electrolysis composite cell stacks;
a drain pipe for discharging a fuel reactant generated by a fuel reaction in the fuel cell-water electrolysis composite cell stack to the outside;
A supply valve unit including supply valves installed for each fuel pipe connected to the fuel cell-water electrolysis composite cell stacks of the supply pipe part and selectively supplying or blocking fuel to the fuel cell-water electrolysis composite cell stacks ;
a power circuit for outputting power generated in the fuel cell-water electrolysis composite cell stacks or for supplying power for water electrolysis; and
When a faulty fuel cell-water electrolysis composite cell stack occurs among the fuel cell-water electrolysis composite cell stack, bypass switches for bypassing the output power or water electrolysis power of the faulty fuel cell-water electrolysis composite cell stack are included. A power bypass circuit comprising a plurality of fuel cell-water electrolysis complex modules configured including;
The fuel cell-water electrolysis composite cell stack towers of the fuel cell-water electrolysis composite modules are in series in the power output circuit. It is characterized in that it is connected in a parallel or series-parallel mixed method,
When a faulty fuel cell-water electrolysis composite cell stack occurs, the control unit further comprises a control unit configured to simultaneously bypass the fuel and output power or electrolysis power supplied to the faulty fuel cell-water electrolysis composite cell stack. A fuel cell-water electrolysis complex module system with ◈Claim 17 was abandoned when paying the registration fee.◈ The fuel cell-water electrolysis composite module according to claim 16, wherein the fuel cell-water electrolysis composite cell stack further comprises a sensor for detecting and outputting an abnormality of the fuel cell-water electrolysis composite cell stack. system. delete

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