CN114747060A

CN114747060A - Connected fuel cell system

Info

Publication number: CN114747060A
Application number: CN202080081827.3A
Authority: CN
Inventors: 成朠晙; 李俊雨; 池峻求
Original assignee: Meike Electric Power Co ltd
Current assignee: Meike Electric Power Co ltd
Priority date: 2019-11-29
Filing date: 2020-11-26
Publication date: 2022-07-12
Anticipated expiration: 2040-11-26
Also published as: WO2021107630A1; KR102244133B1; CN114747060B

Abstract

The connection type fuel cell system of the present invention is characterized by comprising: a hot box module part including a hot box module for accommodating one or more fuel cell stacks and a hot BOP module, and a first accommodating member for accommodating the hot box module, a cold BOP module part including a cold BOP module for supplying air and fuel gas to the inside of the hot BOP module, and a second accommodating member for accommodating the cold BOP module, and an electric BOP module part including an electric BOP module for controlling the operations of the fuel cell stacks, the hot BOP module, and the cold BOP module, and a third accommodating member for accommodating the electric BOP module; any one of the second accommodating member and the third accommodating member is stacked on the other and assembled with each other; the first accommodating member has a height higher than the second and third accommodating members, and is assembled to side surfaces of the second and third accommodating members.

Description

Connected fuel cell system

Technical Field

The present invention relates to a connection type fuel cell system, and more particularly, to a connection type fuel cell system capable Of assembling and disassembling a hot box module, a cold BOP (BOP) module, and an electric BOP module.

Background

Recently, fuel cells that generate electricity by electrochemical reaction of hydrogen and oxygen have been actively studied for their environmental characteristics such as simple energy conversion steps, high efficiency, and pollution-free power generators.

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 ℃, and among various types of fuel cells such as a Molten Carbonate Fuel Cell (MCFC), a Phosphate Acid Fuel Cell (PAFC), and a polymer fuel cell (PEFC), there are various advantages that not only the efficiency is the highest and the pollution is the lowest, but also the power generation can be performed in combination without fuel.

In a fuel cell system operating at high temperature such as a solid oxide fuel cell, a molten carbonate fuel cell, etc., a single cell stack and a hot BOP (balance Of plant) module for supplying reforming fuel and air at high temperature to the stack are generally sealed by using an insulating material, thereby forming a hot box module and applying it, and at the same time, a cold BOP module and an electric BOP module are also applied.

However, the conventional fuel cell system has a problem of high maintenance cost because the entire fuel cell system needs to be replaced when the fuel cell system malfunctions.

In addition, in order to configure a pipe in a cold BOP module, there is also a problem that a separate jig for fixing and configuring the pipe is required.

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

Disclosure of Invention

Technical problem to be solved

Therefore, an object of the present invention is to provide a connected fuel cell system, which is convenient to maintain, to connect and configure pipes, to independently move a hot box module, a cold BOP module, and an electric BOP module, to fix and fix a configuration position of the system, and to conveniently discharge hot gas in the hot box module.

Means for solving the problems

A connection type fuel cell system according to an embodiment of the present invention is characterized by comprising: a hot box module part including a hot box module for accommodating one or more fuel cell stacks and accommodating a hot BOP module, and a first accommodating member for accommodating the hot box module, a cold BOP module part including a cold BOP module for supplying air and fuel gas to the inside of the hot BOP module, and a second accommodating member for accommodating the cold BOP module, and an electric BOP module part including an electric BOP module for controlling the operations of the fuel cell stacks, the hot BOP module, and the cold BOP module, and a third accommodating member for accommodating the electric BOP module; any one of the second accommodating member and the third accommodating member is stacked on the other and assembled with each other; the first accommodating member has a height higher than the second and third accommodating members, and is assembled to side surfaces of the second and third accommodating members.

In an embodiment, a ventilation member may be further included, which is disposed on an upper surface of the heat box module and is connected to an inside of the heat box module in a manner enabling fluid-dredging.

In an embodiment, the method may further include: the first position fixing device is arranged on one side of the bottom surface of the first accommodating part and used for fixing the position of the first accommodating part on the ground; and a second position fixing device disposed at one side of a bottom surface of an accommodating part, which is a lower accommodating part of the second accommodating part and the third accommodating part, for fixing positions of the second accommodating part and the third accommodating part on the ground.

In one embodiment, the method comprises the following steps: a plurality of first moving means provided at four sides of a bottom surface of the first accommodating member to enable the first accommodating member to move, and a plurality of second moving means provided at four sides of a bottom surface of an accommodating member which is a lower accommodating member of the second and third accommodating members to enable the second and third accommodating members to move; each of the first moving means and each of the second moving means may include a fixed member that can be elevated and lowered at one side of each of the first moving means and each of the second moving means.

In an embodiment, a pipe connection module assembled at one side of the second receiving part may be further included.

Effects of the invention

The connection type fuel cell system according to the present invention has advantages in that maintenance can be performed every replacement cycle due to convenience in pipe connection and configuration, each BOP module can be independently moved, the configuration position of the system is fixed firmly, and it is possible to conveniently discharge hot gas and the like in the radiator module.

In addition, by providing a plurality of systems, a system with low space and large capacity can be realized, and a large capacity power generation can be realized by one unique system in mass production.

Drawings

Fig. 1 is a diagram showing an external appearance of a connection type fuel cell system of an embodiment of the present invention.

Fig. 2 is a view showing the structure of the ventilation member shown in fig. 1.

Fig. 3 is a view illustrating the structures of the first position fixing device and the second position fixing device shown in fig. 1.

Fig. 4 is a diagram for explaining the structures of the plurality of first moving devices and the plurality of second moving devices shown in fig. 1.

Fig. 5 is a diagram for explaining the structure of the pipe connection module of the connection type fuel cell system according to the embodiment of the present invention.

Detailed Description

Hereinafter, a connection type fuel cell system according to an embodiment of the present invention will be described in detail with reference to the drawings. Since the present invention can be modified in various ways, specific embodiments are shown in the drawings and will be described in detail in this specification. However, it should be understood that the embodiments of the concept of the present disclosure are not limited to the specific disclosure, but include all modifications, equivalents, and alternatives included in the spirit and technical scope of the present disclosure. In describing each of the figures, like reference numerals are used for like elements. In the drawings, the size of the structures is shown to be larger than the actual size for clarity of the invention.

The terms first, second, etc. may be used to describe various components, but the components are not limited to the terms. The terms are only used to distinguish one constituent element from another constituent element. For example, a first component may be named a second component, and similarly, a second component may also be named a first component, without departing from the scope of the disclosed concept.

The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. The terms "including" or "having" in the present specification are used to specify the presence of the stated features, numerals, steps, actions, components, or combinations thereof, and do not preclude the presence or addition of one or more other features, numerals, steps, actions, components, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Commonly used, pre-defined terms shall be construed to have a meaning that is consistent with their meaning in the context of the relevant art and shall not be construed to have an ideal or overly formal meaning unless expressly defined herein.

Fig. 1 is a diagram showing an external appearance of a connection type 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 part 100, a cold BOP module part 200, and an electric BOP module part 310.

The hot box module part 100 may include: a hot box module 110; and a first receiving part 120 for receiving the hot box module 110.

The hot box module 110 may include more than one fuel cell stack (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, etc. operating at a high temperature, and the hot BOP module may include one or more selected from the following components, etc.: a reformer (not shown) for supplying fuel reformed by reforming hydrocarbon fuel to the fuel cell stack, a vaporizer for supplying steam to the reformer, a burner for burning unreacted gas discharged from the fuel cell stack, and one or more heat exchangers for heating fuel, air, and the like by using heat of high-temperature combustion gas generated by the burner. The hot BOP module may be configured above or below the fuel cell stack.

The hot box module 110 may include: insulation (not shown) for surrounding the fuel cell stack and the hot BOP module; and a case for wrapping the outside of the heat insulating material.

The first receiving part 120 may receive the hot box module 110. As an example, the first receiving part 120 may be formed of a plurality of first frames 121 for covering each corner of the case of the hot box module 110.

The cold BOP module section 200 may include a cold BOP module 210 and a second containment component 220.

The cold BOP module 210 may supply air and fuel gas to the interior of the hot BOP module. The cold BOP module 210 may include a first outer housing. As an example, the first outer case may be a hexahedral shape. Since the cold BOP module 210 may apply a known cold BOP device without limitation, a detailed description thereof will be omitted.

The second receiving part 220 may be constructed of a plurality of second frames 221 for covering each corner of the first outer housing of the cold BOP module 210.

The electric BOP module part 310 may include: an electric BOP module 310; and a third receiving part 320 for receiving the electric BOP module 310.

The electric BOP module 310 may control the operation of the fuel cell stack, the hot BOP module, and the cold BOP module. The electric BOP module 310 may include a second outer housing. As an example, the second outer case may be a hexahedral shape. The electric BOP module 310 may apply a known cold BOP device without limitation, and thus a detailed description thereof will be omitted.

The third receiving part 320 may be constructed of a plurality of third frames 321 for covering each corner of the second outer case of the electro-BOP module 310.

Any one of the second receiving part 220 and the third receiving part 320 may be stacked on the other and assembled with each other. For example, the third receiving part 320 may be stacked on the second receiving part 220.

The first receiving part 120 has a height higher than the second receiving part 220 and the third receiving part 320, and may be assembled to the side surfaces of the second receiving part 220 and the third receiving part 320. For example, the frames may be assembled by bolts and nuts.

On the other hand, the connected fuel cell system according to an embodiment of the present invention may further include a ventilation part 400.

The ventilation part 400 may discharge hot air inside the hot box module 110 to the outside. The ventilation member 400 is provided on the upper surface of the hot box module 110, and may be connected to the inside of the hot box module 110 in a manner enabling fluid-dredging. Referring to fig. 2, the ventilation member 400 may include a first exhaust duct portion 410, a gas dispersion guide portion 420, a second exhaust duct portion 430, and an intake fan 440, as an example.

The first exhaust duct portion 410 may be connected to an upper surface of the case of the hot box module 110 to enable fluid dredging. The shape of the first exhaust pipe portion 410 is not particularly limited, and may be, for example, a cylindrical shape.

The gas dispersion guide part 420 is disposed above the first exhaust pipe part 410, and a lower end portion may be formed to be larger than a sectional size of the first exhaust pipe part 410. Such a gas dispersion guide part 420 may be configured such that the first exhaust pipe part 410 is inserted into the gas dispersion guide part 420, in which a portion of the length of the first exhaust pipe part 410 is inserted, and a ring-shaped gas discharge opening 421 may be formed at the circumference of the inserted first exhaust pipe part 410.

The second exhaust pipe part 430 may be located coaxially with the first exhaust pipe part 410, extend from an upper surface of the gas dispersion guide part 420, and may be connected to the inside of the first exhaust pipe part 410 in a fluid-dredgeable manner.

The intake fan 440 may be disposed at an upper end portion of the second exhaust duct part 430, and may suck the hot air inside the hot box module 110 and discharge it to the outside.

Fig. 3 is a view illustrating the structures of the first and second position fixing devices shown in fig. 1.

On the other hand, the connected fuel cell system according to an embodiment of the present invention may further include a first position fixture 510 and a second position fixture 520.

The first position fixture 510 may be disposed at one side of the bottom surface of the first accommodating part 120 for fixing the position of the first accommodating part 120 on the ground.

The second position fixing means 520 is disposed at one side of a bottom surface of the receiving part, which is a lower receiving part of the second receiving part 220 and the third receiving part 320, for fixing positions of the second receiving part 220 and the third receiving part 320 on the ground.

Referring to fig. 3, as an example, the first position fixing device 510 and the second position fixing device 520 may include: a "+" -shaped fixing bracket 511, 521 connected to the frame of the first receiving part 120 or the frame of the second receiving part 220; and fixing pins 512, 522 provided on horizontal surfaces of the fixing brackets 511, 521. The securing pins 512, 522 may penetrate the ground or be supported on the ground.

Fig. 4 is a diagram for explaining the structures of a plurality of first mobile devices and a plurality of second mobile devices shown in fig. 1.

On the other hand, the connected 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 disposed at four sides of the bottom surface of the first receiving part 120 to enable the first receiving part to move.

The plurality of second moving devices 620 may be disposed at four sides of a bottom surface of a receiving part, which is a lower receiving part of the second receiving part 220 and the third receiving part 320, to enable the second receiving part 220 and the third receiving part 320 to move.

Referring to fig. 4, each of the first mobile devices 610 and each of the second mobile devices 620 may include a fixed member 630 that can be elevated and lowered at one side of each of the first mobile devices 610 and each of the second mobile devices 620.

The lifting structure of the fixing member 630 is not particularly limited, and may be configured to be lifted and lowered by rotation or sliding, for example. Such a fixing member 630 may be lowered and closely attached to the ground, and at this time, the first and second moving

devices

610 and 620 may be fixed, and height adjustment and balance adjustment may be performed according to the inclination of the ground.

On the other hand, 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 to one side of the second receiving part 220. As an example, the pipe connection module 700 may include a pipe arrangement plate 710 and a plurality of pipe connection adapters 720.

The pipe arrangement plate 710 may be a quadrangular plate shape, and may be assembled to a frame of the second receiving part 220.

A plurality of pipe connection adapters 720 may be arranged at random on the pipe arrangement plate 710. A plurality of pipe-connecting adapters 720 may be used to connect pipes that are pipes for air and fuel gas that supply the cold BOP modules 210.

The connected fuel cell system according to such an embodiment of the invention has the following advantages.

First, since the hot box module part 100, the cold BOP module part 200, and the electric BOP module part 310 are bolt structures, they can be assembled and disassembled with each other, so that it is possible to facilitate maintenance of each BOP, and have an advantage that it is possible to make parallel or series connection between systems convenient according to power consumption.

Second, since the pipe connection module 700 for connecting pipes for supplying air and fuel gas of the cold BOP module 210 is assembled at one side of the cold BOP module part 200, it is possible to solve the problem of having a separate pipe module jig for pipe arrangement and to have an advantage of convenience in connection and arrangement of pipes.

Third, since a plurality of first and second moving

devices

610 and 620 are provided, it is easy to move each BOP module when performing system maintenance, and fixing, height adjustment, and balance adjustment of the moving devices can be achieved by a fixing part 630 provided at each first and second moving

devices

610 and 620.

Fourth, the arrangement position of the system can be fixed by the fixing pins 512 and 522 of the first and

second position fixtures

510 and 520, and can have a shock-proof structure by the fixing of the fixing pins 512 and 522 and also be firmly fixed at the arrangement position.

Fifth, since the ventilation member 400 is provided, the hot air inside the hot box module 110 can be easily discharged to the outside.

The description of the illustrated embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features shown herein.

Claims

1. A connection type fuel cell system characterized in that,

the method comprises the following steps:

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 accommodating member for accommodating the hot box module,

a cold BOP module unit including a cold BOP module for supplying air and fuel gas to the inside of the hot BOP module, a second accommodating member for accommodating the cold BOP module, and

an electric BOP module unit having 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 housing member for housing the electric BOP module;

any one of the second accommodating member and the third accommodating member is stacked on the other and assembled with each other;

the first accommodating member has a height higher than the second and third accommodating members, and is assembled to side surfaces of the second and third accommodating members.

2. The connected fuel cell system according to claim 1,

and a ventilation member provided on an upper surface of the heat box module and connected to an inside of the heat box module in a manner enabling fluid-dredging.

3. The connected fuel cell system according to claim 1,

further comprising:

the first position fixing device is arranged on one side of the bottom surface of the first accommodating part and used for fixing the position of the first accommodating part on the ground; and

and the second position fixing device is arranged on one side of the bottom surface of the accommodating part, and the accommodating part is the lower accommodating part in the second accommodating part and the third accommodating part and is used for fixing the positions of the second accommodating part and the third accommodating part on the ground.

4. The connected fuel cell system according to claim 1,

the method comprises the following steps:

a plurality of first moving means provided around a bottom surface of the first accommodating member to enable the first accommodating member to move, an

A plurality of second moving devices provided around a bottom surface of an accommodating member that is a lower accommodating member of the second accommodating member and the third accommodating member so that the second accommodating member and the third accommodating member can move;

each of the first moving devices and each of the second moving devices includes a fixed part that can be lifted and lowered at one side of each of the first moving devices and each of the second moving devices, respectively.

5. The connected fuel cell system according to claim 1,

and a pipe connection module assembled at one side of the second receiving part.