KR102244133B1 - Connection type fuel cell system - Google Patents

Abstract

Disclosed is a connected fuel cell system. The connected fuel cell system comprises: a hot box module unit including a hot box module for accommodating one or more fuel cell stacks and a hot BOP module, and a first accommodation member for accommodating the hot box module; a cold BOP module unit including a cold BOP module for supplying air and fuel gas into the hot BOP module, and a second accommodation member for accommodating the cold BOP module; and an electric BOP module unit including an electric BOP module for controlling operations of the fuel cell stacks, the hot BOP module, and the cold BOP module, and a third accommodation member for accommodating the electric BOP module, wherein one from among the second accommodation member and the third accommodation member is stacked on the other so as to be assembled together, and the first accommodation member is provided to be higher than the second accommodation member and the third accommodation member so as to be assembled into side portions of the second accommodation member and the third accommodation member. Accordingly, hot gas in the hot box module can be easily discharged.

Description

Connected fuel cell system {CONNECTION TYPE FUEL CELL SYSTEM}

The present invention relates to a connected fuel cell system, and more particularly, to a connected fuel cell system capable of assembling and separating between a hot box module, a cold BOP module, and an electric BOP module.

Fuel cells that generate electricity through the electrochemical reaction of hydrogen and oxygen

Due to the simple conversion step, high efficiency, and eco-friendly characteristics of a non-polluting generator, recent research has been actively conducted.

In particular, among the fuel cells, a solid oxide fuel cell (SOFC) is a fuel cell that uses ceramic as an electrolyte and operates at a high temperature of about 600 to 1000°C, and includes a molten carbonate fuel cell (MCFC) and a phosphoric acid fuel cell (PAFC). , Polymer fuel cell (PEFC), among other types of fuel cells, has several advantages in that it is the most efficient and has less pollution, and it does not require a fuel reformer, and combined power generation is possible.

In a high-temperature operating fuel cell system such as a solid oxide fuel cell and a molten carbonate fuel cell, a single cell stack is generally provided using an insulating material, and a hot BOP (Balance Of Plant) module for supplying high-temperature reformed fuel and air to the stack is provided. It is sealed to form a hot box module and applied, together with a cold BOP module and an electric BOP module.

However, in the conventional fuel cell system, when a failure of the fuel cell system occurs, the entire fuel cell system must be replaced, and thus maintenance cost is high.

In addition, there is a problem that a separate jig for fixing and arranging the pipe is required for the configuration of the pipe in the cold BOP module.

In addition, there is a problem in that it is difficult to discharge hot gas inside the hot box module.

Therefore, the problem to be solved by the present invention is easy maintenance, easy connection and arrangement of pipes, independent movement of the hot box module, cold BOP module, and electric BOP module, and the arrangement position of the system is firmly fixed. And, it is to provide a connected fuel cell system capable of easily discharging hot gas in a hot box module.

A connected fuel cell system according to an embodiment of the present invention includes a hot box module unit including a hot box module accommodating at least one fuel cell stack and a hot BOP module, and a first accommodating member accommodating the hot box module; A cold BOP module unit including a cold BOP module supplying air and fuel gas into the hot BOP module and a second receiving member accommodating the cold BOP module; And an electric BOP module unit including an electric BOP module for controlling the operation of the fuel cell stack, the hot BOP module and the cold BOP module, and a third receiving member accommodating the electric BOP module, and the second receiving member And any one of the third accommodating members is stacked on top of the other and assembled with each other, and the first accommodating member is provided at a height higher than that of the second accommodating member and the third accommodating member. It is characterized in that it is assembled to the side portions of the third receiving member.

In one embodiment, it may further include a ventilation member provided on the upper surface of the hot box module to be connected in fluid communication with the inside of the hot box module.

In one embodiment, a first position fixing device provided on one side of the bottom surface of the first receiving member for fixing the position of the first receiving member on the ground; And provided on one side of the bottom of the receiving member located under the other receiving member among the second receiving member and the third receiving member to fix the positions of the second receiving member and the third receiving member on the ground. It may further include a second position fixing device.

In one embodiment, a plurality of first moving devices are provided on all sides of the bottom surface of the first receiving member to enable the movement of the first receiving member; And a plurality of second receiving members and a plurality of third receiving members provided on all sides of the bottom of the receiving member positioned under the other receiving member of the second receiving member and the third receiving member to enable movement of the second receiving member and the third receiving member. It includes 2 moving devices, and each of the first moving devices and each of the second moving devices may include a fixing member provided to be elevating and descending from one side.

In one embodiment, it may further include a pipe connection module assembled to one side of the second receiving member.

According to the connected fuel cell system according to the present invention, the connection and arrangement of pipes is easy, so that maintenance is possible for each replacement cycle, each BOP module can be moved independently, the arrangement position of the system is firmly fixed, and the hot box module There is an advantage such as being able to easily discharge the hot gas inside.

In addition, it is possible to implement a low-space and high-capacity system by installing a plurality of systems, and there is an effect of enabling large-capacity power generation with one unique system during mass production.

1 is a view showing the appearance of a connected fuel cell system according to an embodiment of the present invention.
2 is a view showing the configuration of the ventilation member shown in FIG.
3 is a view showing the configuration of the first position fixing device and the second position fixing device shown in FIG.
FIG. 4 is a diagram illustrating a configuration of a plurality of first moving devices and a plurality of second moving devices shown in FIG. 1.
5 is a view for explaining the configuration of a pipe connection module of the connected fuel cell system according to an embodiment of the present invention.

Hereinafter, a linked fuel cell system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the present invention, various modifications may be made and various forms may be applied, and specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific form disclosed, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals have been used for similar elements. In the accompanying drawings, the dimensions of the structures are shown to be enlarged than the actual size for clarity of the present invention.

Terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of the presence or addition.

Unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in the present application. Does not.

1 is a view showing the appearance of a connected fuel cell system according to an embodiment of the present invention.

Referring to FIG. 1, a connected fuel cell system according to an embodiment of the present invention may include a hot box module unit 100, a cold BOP module unit 200, and an electric BOP module unit 310.

The hot box module unit 100 may include a hot box module 110 and a first accommodating member 120 accommodating the hot box module 110.

The hot box module 110 may include one or more fuel cell stacks (not shown) and a hot BOP module (not shown). In this case, the fuel cell stack may include a solid oxide fuel cell (SOFC) stack or a molten carbonate fuel cell (MCFC) stack operating at a high temperature, and the hot BOP module converts hydrocarbon fuel to convert the reformed fuel. A reformer (not shown) supplied to the fuel cell stack, a vaporizer supplying water vapor to the reformer, a combustor that burns unreacted gas discharged from the fuel cell stack, and heat of the high-temperature combustion gas generated by the combustor is used. Thus, it may include one or more selected from one or more heat exchangers that heat fuel, air, and the like. The hot BOP module may be disposed above or below the fuel cell stack.

The hot box module 110 may include an insulation material (not shown) surrounding the fuel cell stack and the hot BOP module, and a case surrounding the outside of the insulation material.

The first accommodating member 120 may accommodate the hot box module 110. For example, the first accommodating member 120 may include a plurality of first frames 121 covering corners of the case of the hot box module 110.

The cold BOP module unit 200 may include a cold BOP module 210 and a second accommodating member 220.

The cold BOP module 210 may supply air and fuel gas into the hot BOP module. The cold BOP module 210 may include a first outer case. For example, the first outer case may have a hexahedral shape. The cold BOP module 210 may be applied without limitation to known cold BOP devices, and thus a detailed description thereof will be omitted.

The second accommodating member 220 may include a plurality of second frames 221 covering corners of the first outer case of the cold BOP module 210.

The electric BOP module unit 310 may include an electric BOP module 310 and a third accommodating member 320 accommodating the electric BOP module 310.

The electric BOP module 310 may control operations of the fuel cell stack, the hot BOP module, and the cold BOP module. The electric BOP module 310 may include a second outer case. For example, the second outer case may have a hexahedral shape. Since the electric BOP module 310 can be applied without limitation to known electric BOP devices, a detailed description thereof will be omitted.

The third accommodating member 320 may include a plurality of third frames 321 covering corners of the second outer case of the electric BOP module 310.

One of the second and third receiving members 220 and 320 may be stacked on top of the other and assembled with each other. For example, the third accommodating member 320 may be stacked on the second accommodating member 220.

The first accommodating member 120 is provided at a height higher than that of the second accommodating member 220 and the third accommodating member 320 so that the second accommodating member 220 and the third accommodating member 320 Can be assembled on the side parts. For example, it can be assembled with bolts and nuts between frames.

2 is a view showing the configuration of the ventilation member shown in FIG.

Meanwhile, the connected fuel cell system according to an embodiment of the present invention may further include a ventilating member 400.

The ventilation member 400 may discharge hot gas inside the hot box module 110 to the outside. The ventilating member 400 may be provided on an upper surface of the hot box module 110 and may be connected to the inside of the hot box module 110 in fluid communication. Referring to FIG. 2, as an example, the ventilation member 400 may include a first exhaust pipe part 410, a gas dispersion induction part 420, a second exhaust pipe part 430, and an intake fan 440.

The first exhaust pipe part 410 may be connected to the upper surface of the case of the hot box module 110 in fluid communication. There is no particular limitation on the shape of the first exhaust pipe part 410, and may be, for example, a cylindrical shape.

The gas dispersion induction part 420 may be disposed above the first exhaust pipe part 410, and the lower end may be formed to be larger than the cross-sectional size of the first exhaust pipe part 410. The gas dispersion induction part 420 may be arranged such that the first exhaust pipe part 410 is inserted into the gas dispersion induction part 420, and at this time, a part of the length of the first exhaust pipe part 410 is inserted, and An annular gas discharge opening 421 may be formed around the first exhaust pipe part 410.

The second exhaust pipe part 430 is located coaxially with the first exhaust pipe part 410 and extends from the upper surface of the gas dispersion induction part 420 to be connected in fluid communication with the inside of the first exhaust pipe part 410.

The intake fan 440 may be provided at the upper end of the second exhaust pipe part 430, and may inhale hot gas inside the hot box module 110 and discharge it to the outside.

3 is a view showing the configuration of the first position fixing device and the second position fixing device shown in FIG.

Meanwhile, the linked fuel cell system according to an embodiment of the present invention may further include a first position fixing device 510 and a second position fixing device 520.

The first position fixing device 510 may be provided on one side of the bottom of the first receiving member 120 to fix the position of the first receiving member 120 on the ground.

The second position fixing device 520 is provided on one side of the bottom of the receiving member located under the other receiving member among the second receiving member 220 and the third receiving member 320, and the second receiving member on the ground. The positions of 220 and the third accommodating member 320 may be fixed.

Referring to FIG. 3, as an example, the first position fixing device 510 and the second position fixing device 520 are connected to the frame of the first receiving member 120 or the frame of the second receiving member 220. It may include fixing brackets 511 and 521 having a'b' shape and fixing pins 512 and 522 provided on a horizontal surface of the fixing brackets 511 and 521. The fixing pins 512 and 522 may penetrate the ground or be supported on the ground.

FIG. 4 is a diagram illustrating a configuration of a plurality of first moving devices and a plurality of second moving devices shown in FIG. 1.

Meanwhile, the linked fuel cell system according to an embodiment of the present invention may include a plurality of first moving devices 610, a plurality of second moving devices 620, and a fixing member 630.

The plurality of first moving devices 610 may be provided on all sides of the bottom surface of the first receiving member 120 so that the first receiving member can be moved.

The plurality of second moving devices 620 are provided on all sides of the bottom of the receiving member positioned under the other receiving member among the second receiving member 220 and the third receiving member 320, and the second receiving member 220 and the third receiving member 320 may be moved.

Referring to FIG. 4, each of the first moving devices 610 and each of the second moving devices 620 may include a fixing member 630 provided to be elevating and descending from one side. There is no particular limitation on the structure capable of elevating the fixing member 630, and for example, it may be provided to elevate and descend in a rotary or slide manner. This fixing member 630 may descend and adhere to the ground, and at this time, the first moving device 610 and the second moving device 620 may be fixed, and height adjustment and balance adjustment according to the slope of the ground are possible. Can be set.

5 is a view for explaining the configuration of a pipe connection module of the connected fuel cell system according to an embodiment of the present invention.

Meanwhile, the connected fuel cell system according to an embodiment of the present invention may further include a pipe connection module 700.

Referring to FIG. 5, the pipe connection module 700 may be assembled on one side of the second accommodation member 220. For example, the pipe connection module 700 may include a pipe configuration plate 710 and a plurality of pipe connection adapters 720.

The piping configuration plate 710 may have a rectangular plate shape, and may be assembled to the frame of the second accommodating member 220.

A plurality of pipe connection adapters 720 may be randomly arranged on the pipe configuration plate 710. A plurality of pipe connection adapters 720 may be used to connect pipes supplying air and fuel gas of the cold BOP module 210.

The linked fuel cell system according to an embodiment of the present invention has the following advantages.

First, since the hot box module unit 100, the cold BOP module unit 200, and the electric BOP module unit 310 can be assembled and separated from each other as a bolting structure, maintenance for each BOP can be facilitated, and electricity usage capacity There is an advantage in that the parallel or serial connection between the systems according to the can be facilitated.

Second, since the pipe connection module 700 for connecting the pipe for supplying air and fuel gas of the cold BOP module 210 is assembled on one side of the cold BOP module 200, a separate pipe module for the arrangement of the pipe There is an advantage in that the problem of having a jig can be solved, and connection and arrangement of pipes can be facilitated.

Third, since a plurality of first moving devices 610 and a plurality of second moving devices 620 are provided, it is easy to move each BOP module for system maintenance, and each of the first moving devices 610 and each There is an advantage that it is possible to fix, adjust the height, and adjust the balance of the moving device through the fixing member 630 provided in the second moving device 620 of the.

Fourth, the arrangement position of the system can be fixed by the fixing pins 512 and 522 of the first positioning device 510 and the second positioning device 520, and by fixing the fixing pins 512 and 522 It has a dustproof structure and has the advantage that the placement position can be firmly fixed.

Fifth, since the ventilation member 400 is provided, there is an advantage that the hot gas in the hot box module 110 can be easily discharged to the outside.

The description of the presented embodiments is provided to enable any person skilled in the art to use or practice the present invention. Various modifications to these embodiments will be apparent to those of ordinary skill in the art, and general principles defined herein can be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention is not to be limited to the embodiments presented herein, but is to be construed in the widest scope consistent with the principles and novel features presented herein.

Claims (5)

A hot box module unit including a hot box module accommodating at least one fuel cell stack and a hot BOP module, and a first accommodating member accommodating the hot box module;
A cold BOP module unit including a cold BOP module supplying air and fuel gas into the hot BOP module and a second receiving member accommodating the cold BOP module;
An electric BOP module unit including an electric BOP module for controlling the operation of the fuel cell stack, the hot BOP module and the cold BOP module, and a third receiving member accommodating the electric BOP module; And
It is provided on the upper surface of the hot box module and includes a ventilation member fluidly connected to the inside of the hot box module,
The ventilation member,
A first exhaust pipe part fluidly connected to the upper surface of the case of the hot box module;
A gas dispersion induction part accommodating an upper end of the first exhaust pipe part and forming an annular gas discharge opening around the inserted first exhaust pipe part; And
Characterized in that it comprises a; a second exhaust pipe portion extending from the upper surface portion of the gas dispersion induction portion and connected in fluid communication with the inside of the first exhaust pipe portion,
Connected fuel cell system. The method of claim 1,
The ventilating member further comprises an intake fan provided at an upper end of the second exhaust pipe part and configured to intake gas inside the hot box module and discharge it to the outside.
Connected fuel cell system. The method of claim 1,
A first position fixing device provided on one side of the bottom surface of the first receiving member to fix the position of the first receiving member on the ground; And
A second receiving member and a third receiving member, which is provided on one side of the bottom of the receiving member located under the other receiving member, to fix the positions of the second receiving member and the third receiving member on the ground. 2 characterized in that it further comprises a position fixing device,
Connected fuel cell system. The method of claim 1,
A plurality of first moving devices provided on all sides of the bottom surface of the first receiving member to enable movement of the first receiving member; And
A plurality of second housing members are provided on all sides of the bottom of the housing member located under the other housing member among the second housing member and the third housing member to enable movement of the second housing member and the third housing member. Including a moving device,
Each of the first moving device and each of the second moving devices comprises a fixing member provided to be elevating and descending from one side,
Connected fuel cell system. The method of claim 1,
It characterized in that it further comprises a pipe connection module assembled to one side of the second receiving member,
Connected fuel cell system.

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