WO2020173076A1

WO2020173076A1 - Gas-liquid separation device for cell stack, and fuel cell employing same

Info

Publication number: WO2020173076A1
Application number: PCT/CN2019/105351
Authority: WO
Inventors: 李勇; 邓佳; 韦庆省; 王宏旭; 梁未栋; 李国坚; 张振涛; 赵勇富; 刘静; 易勇
Original assignee: 中山大洋电机股份有限公司
Priority date: 2019-02-28
Filing date: 2019-09-11
Publication date: 2020-09-03
Also published as: CN209418656U

Abstract

A gas-liquid separation device for a cell stack, and a fuel cell employing the same. The device comprises a main block (1) and an adapter plate (2), and at least one set of connection holes (21) are provided at the adapter plate (2). The main block (1) is provided with a main hydrogen channel (11) for hydrogen circulation, a main air channel (12) for air circulation, and a main coolant channel (13) for coolant circulation. The main hydrogen channel (11), the main air channel (12) and the main coolant channel (13) are vertically oriented and mutually separated. The main block (1) is provided with several hydrogen flow-separation channels (14), several air flow-separation channels (15), and several coolant flow-separation channels (16). An end of each hydrogen flow-separation channel (14) is connected to the main hydrogen channel (11), an end of each air flow-separation channel (15) is connected to the main air channel (12), and an end of each coolant flow-separation channel (16) is connected to the main coolant channel (13). The invention has a logical structural design. The configuration of the main channels and the flow-separation channels enables a logical layout, facilitates various inspections and maintenance work, and provides multiple useful functions.

Description

Stack gas-liquid distribution device and fuel cell used in the same

Technical field:

The utility model relates to an electric stack gas-liquid distribution device and a fuel cell used in the same.

Background technique:

The existing fuel cell includes a stack module, that is, the fuel cell stack is the core part of the hydrogen fuel cell. The hydrogen and the oxygen in the air cover the stack module to produce chemical reactions. There are many parts installed at the inlet and outlet of the stack module: Pressure sensor, temperature sensor, hydrogen inlet and outlet silicone tube, coolant inlet and outlet silicone tube, air inlet and outlet silicone tube, clamp, hydrogen inlet connector, hydrogen circulation pump connector, hydrogen return pump coolant connector, pressure relief connector, coolant connector , Air connector, port connector insulation block, sensor connector, etc.; among them, the hydrogen inlet silicone tube, the coolant silicone tube, and the air inlet silicone tube are used to transport the reactant gas and coolant; the clamp is used to fix the sealed port connector and inlet Hydrogen connector, hydrogen circulation pump connector, coolant connector, air connector, sensor connector and air inlet silicone tube, coolant silicone tube, air inlet silicone tube connection; insulating spacer is used to increase the port connector, silicone tube and stack The pressure relief connector is used for hydrogen pressure protection; the hydrogen return pump cooling connector is used for cooling the hydrogen return pump; the pressure sensor is used to detect the coolant pressure and air supply pressure entering the system and output signals; the temperature sensor is used to detect The temperature of the coolant entering the system and the temperature of the air supply and output signals;

The gas-liquid distribution device currently used in the stack module has the following technical problems: 1) The structure is too simple and unreasonable, the function is single, and it does not have additional functions, such as no flow path detection function, no temperature and pressure detection function, cooling The gas produced by the coolant in the liquid main channel at a high temperature is discharged, and the original structure has no exhaust port.

Utility model content:

The purpose of the utility model is to provide a stack gas-liquid distribution device and a fuel cell applied thereto, which can avoid and solve the technical problems of unreasonable structure setting, single function, and various inconveniences during use in the prior art.

The purpose of the utility model is achieved through the following technical solutions.

A gas-liquid distribution device for a stack includes a block body and an adapter plate. The adapter plate is installed on one side of the block body. At least one group of connecting holes is provided on the adapter plate, and each group of connecting holes includes At least one hydrogen hole, at least one air hole and at least one cooling liquid hole, characterized in that: the main body of the aggregate is provided with a hydrogen main channel for hydrogen to circulate, and the main body of the aggregate is provided with a hydrogen main channel for air to circulate. An air main flow channel is provided on the main body of the block with a cooling liquid main flow channel for cooling liquid to circulate. The hydrogen main flow channel, the air main flow channel and the cooling liquid main flow channel are vertically oriented and separated from each other. There are several hydrogen split channels, several air split channels and several coolant split channels. One end of the several hydrogen split channels is respectively connected with the hydrogen main channel, and the other end of the several hydrogen split channels is connected with the hydrogen holes on the adapter plate; several air split channels One end of the cooling fluid is connected to the air main flow channel, and the other ends of the air branching channels are connected to the air holes on the adapter plate; one end of the cooling liquid branching channel is connected to the cooling liquid main channel, and the other ends of the cooling liquid branching channels are connected to the rotating The coolant holes on the connecting plate are connected.

The plurality of hydrogen sub-flow passages, several air sub-flow passages and several cooling liquid sub-flow passages on the main body of the agglomeration block are oriented transversely and separated from each other.

The hydrogen main flow channel is perpendicular to the plurality of hydrogen flow channels, the air main flow channel is vertical to the air flow channels, and the cooling liquid main flow channel is perpendicular to the plurality of cooling liquid flow channels.

The upper and lower ends of the hydrogen main channel, air main channel and coolant main channel are respectively provided with openings. Among them, an elbow is installed in the through hole of at least one end of the hydrogen main channel, air main channel and coolant main channel, and the other end is opened. A cover or elbow is installed inside, one end of the elbow is connected with the through hole, and the other end of the elbow is installed with a pipe.

A plurality of process holes are provided on the main body of the agglomeration block, and the plurality of process holes are respectively connected with a plurality of hydrogen branch channels, a plurality of air branch channels and a plurality of cooling liquid branch channels, and a plug is installed on the process holes for sealing.

A plurality of protrusions are provided on the outer edge of the main body of the aggregate, and the plurality of protrusions are provided with threaded holes, and the plurality of threaded holes are respectively communicated with the hydrogen main flow channel, the air main flow channel and the coolant main flow channel, so A temperature sensor or pressure sensor or joint with an external thread structure is installed on the threaded hole.

A sealing gasket is arranged between the adapter plate and the main body of the block, and the hydrogen holes, air holes and cooling liquid holes of each group of connecting holes are respectively distributed from top to bottom.

An elbow is installed on the upper opening of the hydrogen main flow channel, and a cover is installed on the lower end opening of the hydrogen main flow channel; a cover is installed on the upper opening of the air main flow channel, and an elbow is installed on the lower end opening of the air main flow channel; An elbow or cap is installed on the upper opening of the coolant main channel, and an elbow is installed on the lower opening of the coolant main channel.

A fuel cell includes a stack module, an input stack gas-liquid distribution device, and an output stack distribution device. The stack module is formed by stacking several fuel cell units from bottom to top. Each fuel cell One side of the monomer is provided with a hydrogen input port, an air input port and a cooling liquid input port. The hydrogen input port, air input port and cooling liquid input port are respectively distributed from top to bottom, and the other side is provided with There are a hydrogen output port, an air output port, and a coolant output port. The hydrogen output port, the air output port, and the coolant output port are respectively distributed from top to bottom in sequence. The hydrogen input port, the air input port and the coolant input port Connect the input stack gas-liquid distribution device, the hydrogen output port, the air output port and the coolant output port are respectively connected with the output stack distribution device, characterized in that: the output stack distribution device is connected to the input stack gas-liquid The distribution device is a gas-liquid distribution device for a stack as described above. The gas-liquid distribution device for a stack includes a block body and an adapter plate. The adapter plate is installed on one side of the block body. At least one set of connecting holes is provided on the connecting plate, and each set of connecting holes includes at least one hydrogen hole, at least one air hole and at least one cooling liquid hole. The plurality of hydrogen holes, air holes and cooling liquid holes are respectively arranged from top to bottom. The main body of the block is assembled with the stack module through the adapter plate, and the hydrogen input port, the air input port and the coolant input port of the fuel cell unit are respectively connected to the stack gas-liquid distribution device The hydrogen holes, air holes, and coolant holes of the plate are in one-to-one correspondence, and the hydrogen outlet, air outlet, and coolant outlet of the fuel cell unit are respectively connected with the hydrogen output of the adapter plate of the stack gas-liquid distribution device. The holes, air holes and coolant holes are in one-to-one correspondence.

The main body of the aggregate block of the gas-liquid distribution device of the input stack is provided with a hydrogen main channel for hydrogen to circulate, the main block body is provided with an air main channel for air circulation, and the main body of the aggregate is provided with A coolant main flow channel for cooling liquid to circulate, the upper and lower ends of the hydrogen main flow channel, the air main flow channel and the coolant main flow channel are respectively provided with openings, the upper end opening of the hydrogen main flow channel is equipped with an elbow, and the lower end is opened A cover is installed; the upper opening of the air main channel is equipped with a cover, and the lower end opening is equipped with an elbow; the upper opening of the coolant main channel is equipped with a cover, and the lower end opening is equipped with an elbow.

The main body of the block body of the output stack gas-liquid distribution device is provided with a hydrogen main channel for hydrogen to circulate, the main body of the block is provided with an air main channel for air circulation, and the main body of the block is provided with A coolant main flow channel for cooling liquid to circulate, the upper and lower ends of the hydrogen main flow channel, the air main flow channel and the coolant main flow channel are respectively provided with openings, the upper end opening of the hydrogen main flow channel is equipped with an elbow, and the lower end is opened A cover is installed; the upper opening of the air main channel is equipped with a cover, and the lower end opening is equipped with an elbow; the upper and lower openings of the coolant main channel are both equipped with an elbow.

Compared with the prior art, the utility model has the following effects:

1) The utility model includes a block body and an adapter plate. The adapter plate is installed on one side of the block body. At least one group of connecting holes is provided on the adapter plate, and each group of connecting holes includes at least one hydrogen. Holes, at least one air hole and at least one coolant hole, characterized in that: the main body of the aggregate is provided with a hydrogen main channel for hydrogen to circulate, and the main body of the aggregate is provided with an air main channel for air to circulate , The main body of the agglomeration block is provided with a coolant main flow channel for cooling liquid to circulate, the hydrogen main flow channel, the air main flow channel and the cooling liquid main flow channel are vertically oriented and separated from each other, and the main body of the block is provided with a plurality of hydrogen The splitter, several air splitters and a number of coolant splitters. One end of the hydrogen splitter is connected to the hydrogen main channel, and the other end of the hydrogen splitter is connected to the hydrogen hole on the adapter plate; one end of the several air splitter is respectively Connected with the air main channel, the other ends of the several air distribution channels are connected with the air holes on the adapter plate; one end of the several cooling liquid distribution channels is respectively connected with the cooling liquid main channel, and the other ends of the several cooling liquid distribution channels are connected with the adapter plate The coolant holes are connected and the structure design is reasonable. Through the design of the main flow channel and the branch flow channel, the layout is more reasonable, convenient for various inspections and maintenance, with more functions and complete functions.

2) The other advantages of the utility model are described in detail in the embodiment section.

Description of the drawings:

Fig. 1 is a perspective view of the gas-liquid distribution device of the Chinese reactor of the present invention;

Figure 2 is a three-dimensional exploded view of the gas-liquid distribution device for the reactor of the present invention;

Fig. 3 is a top view of the gas-liquid distribution device of the power reactor of the present invention;

Figure 4 is a cross-sectional view of A-A in Figure 3;

Figure 5 is a cross-sectional view of B-B in Figure 3;

Figure 6 is a rear view of the gas-liquid distribution device for the reactor of the present invention;

Figure 7 is a cross-sectional view of C-C in Figure 6;

Figure 8 is a cross-sectional view of D-D in Figure 6;

Figure 9 is a cross-sectional view of E-E in Figure 6;

Figure 10 is an exploded view of the partial structure of the gas-liquid distribution device for the reactor of the present invention;

Figure 11 is a partial structural exploded view of the reactor gas-liquid distribution device of the utility model from another angle;

Figure 12 is a partial schematic diagram of the fuel cell of the present invention;

Figure 13 is an exploded view of the fuel cell structure of the utility model;

Figure 14 is a flow distribution diagram of the fuel cell of the present invention.

detailed description:

Hereinafter, the present utility model will be further described in detail through specific embodiments in conjunction with the drawings.

Example one:

As shown in Figures 1 to 11, this embodiment provides a stack gas-liquid distribution device, which includes a block main body 1 and an adapter plate 2, which is installed on one side of the block main body 1. At least one set of connecting holes 21 is provided on the adapter plate 2, and each set of connecting holes 21 includes at least one hydrogen hole 211, at least one air hole 212 and at least one coolant hole 213, characterized in that: The main body 1 is provided with a hydrogen main passage 11 for hydrogen to circulate, the aggregate main body 1 is provided with an air main passage 12 for air to circulate, and the aggregate main body 1 is provided with a cooling device for cooling liquid. The liquid main flow channel 13, the hydrogen main flow channel 11, the air main flow channel 12 and the cooling liquid main flow channel 13 are vertically oriented and separated from each other. The main body 1 of the block is provided with a plurality of hydrogen flow channels 14, a plurality of air flow channels 15, and a number of Coolant flow channel 16, one end of a plurality of hydrogen flow channels 14 is respectively connected with the hydrogen main channel 11, the other end of the plurality of hydrogen flow channels 14 is communicated with the hydrogen hole 211 on the adapter plate 2; The main flow passage 12 is connected, and the other ends of the several air distribution passages 15 are connected to the air holes 212 on the adapter plate 2; one end of the several cooling liquid distribution passages 16 is respectively connected to the cooling liquid main passage 13, and the other end of the several cooling liquid distribution passages 16 It is connected with the coolant hole 213 on the adapter plate 2 and has a reasonable structure design. Through the design of the main runner and the branch runner, the layout is more reasonable, convenient for various inspections and maintenance, and has more functions and perfect functions.

The plurality of hydrogen distribution channels 14, a plurality of air distribution channels 15 and a plurality of cooling liquid distribution channels 16 on the main body 1 of the agglomeration block are oriented laterally and separated from each other, and have a simple structure and a reasonable layout.

The hydrogen main flow channel 11 and the plurality of hydrogen flow channels 14 are vertical, the air main flow channel 12 and the air flow channels 15 are vertical, and the coolant main flow channel 13 and the cooling liquid branch channels 16 are vertical. Vertical, simple structure.

The upper and lower ends of the hydrogen main passage 11, the air main passage 12, and the cooling liquid main passage 13 are respectively provided with through holes 10, wherein at least one end of the hydrogen main passage 11, the air main passage 12 and the cooling liquid main passage 13 An elbow 3 is installed in the hole 10, and a cover 4 or an elbow 3 is installed in the through hole 10 at the other end. One end of the elbow 3 is connected with the through hole 10, and the other end of the elbow 3 is equipped with a pipe. The structure is simple. Easy to manufacture and easy to install.

A plurality of process holes 17 are provided on the main body 1 of the agglomeration block, and the plurality of process holes 17 are respectively communicated with a plurality of hydrogen branch channels 14, a plurality of air branch channels 15 and a plurality of cooling liquid branch channels 16, and the process holes 17 are installed There is a plug 5 for sealing, which is used as a gas inlet when the system is leak-tight, which is convenient for quality monitoring.

A plurality of protrusions 18 are provided on the outer edge of the main body 1 of the aggregate, and the plurality of protrusions 18 are provided with threaded holes 181. The threaded holes 181 are respectively connected to the hydrogen main passage 11, the air main passage 12 and The coolant main flow channel 13 is connected, and the threaded hole 181 is equipped with a temperature sensor 182 or a pressure sensor 183 or a joint 184 with an external thread structure. The structure is simple and tight, and the installation is convenient, which is convenient for detecting the gas temperature and pressure inside the flow channel. .

A sealing gasket is provided between the adapter plate 2 and the main body 1 of the block, and the hydrogen holes 211, air holes 212 and cooling liquid holes 213 of each group of connecting holes 21 are distributed from top to bottom, which is convenient for installation and Air tightness is guaranteed.

An elbow 3 is installed on the upper opening 10 of the hydrogen main flow channel 11, and a cover 4 is installed on the lower opening 10 of the hydrogen main flow channel 11; a cover 4 is installed on the upper opening 10 of the air main flow channel 12, and the air main flow channel 12 An elbow 3 is installed on the lower end opening 10 of the cooling liquid main channel 13; an elbow 3 or a cover 4 is installed on the upper opening 10 of the cooling liquid main channel 13, and an elbow 3 is installed on the lower end opening 10 of the cooling liquid main channel 13, and the cooling liquid main channel An elbow 3 is installed on the upper end of 13 to facilitate the discharge of the gas generated by the cooling liquid in a high temperature state, the structure is simple, and the manufacturing is easy and the installation is convenient.

Embodiment two:

As shown in Figure 7, Figure 8, Figure 9, and Figure 12 to Figure 14, this embodiment provides a fuel cell, including a stack module 6, an input stack gas-liquid distribution device 7 and an output stack distribution device 8 The stack module 6 is formed by stacking several fuel cell units 60 from bottom to top. Each fuel cell unit 60 is provided with a hydrogen input port 601, an air input port 602, and a cooling system on one side. The liquid input port 603, the hydrogen input port 601, the air input port 602, and the coolant input port 603 are respectively distributed from top to bottom, and the other side is provided with a hydrogen output port 604, an air output port 605 and a coolant output Port 606, the hydrogen output port 604, the air output port 605, and the cooling liquid output port 606 are respectively distributed from top to bottom, and the hydrogen input port 601, the air input port 602 and the cooling liquid input port 603 are connected to the input stack gas The liquid distribution device 7, the hydrogen output port 604, the air output port 605, and the coolant output port 606 are respectively connected to the output stack distribution device 8, characterized in that: the output stack distribution device 8 and the input stack gas-liquid The distribution device 7 is a stack gas-liquid distribution device described in the first embodiment. The stack gas-liquid distribution device includes a block body 1 and an adapter plate 2. At least one set of connections is provided on the adapter plate 2 Holes 21, each group of connecting holes 21 includes at least one hydrogen hole 211, at least one air hole 212, and at least one cooling liquid hole 213, and the plurality of hydrogen holes 211, air holes 212 and cooling liquid holes 213 are respectively arranged from top to bottom Distributed in sequence, the adapter plate 2 is installed on one side of the block body 1, and the block body 1 is assembled with the stack module 6 through the adapter plate 2. The hydrogen input port of the fuel cell unit 60 601, the air input port 602, and the coolant input port 603 are respectively in one-to-one correspondence with the hydrogen holes 211, the air holes 212, and the coolant holes 213 of the adapter plate 2 of the stack gas-liquid distribution device 7, and the fuel cell unit The hydrogen output port 604, the air output port 605, and the coolant output port 606 of the 60 are in one-to-one correspondence with the hydrogen holes 211, the air holes 212, and the coolant holes 213 of the adapter plate 2 of the output stack distribution device 8, which reduces The parts of the gas-liquid distribution structure of the stack improve the space utilization rate of the fuel cell.

The main block body 1 of the input stack gas-liquid distribution device 7 is provided with a hydrogen main channel 11 for hydrogen to circulate, and the main block main body 1 is provided with an air main channel 12 for air to circulate. The block body 1 is provided with a coolant main flow channel 13 for cooling liquid to circulate, and the upper and lower ends of the hydrogen main flow channel 11, the air main flow channel 12 and the cooling liquid main channel 13 are respectively provided with openings 10, the hydrogen main flow channel The upper opening 10 of 11 is equipped with an elbow 3, and the lower end opening 10 is equipped with a cover 4; the upper opening 10 of the air main duct 12 is equipped with a cover 4, and the lower end opening 10 is equipped with an elbow 3; The upper opening 10 of the liquid main channel 13 is equipped with a cover 4, and the lower opening 10 is equipped with an elbow 3, which has a simple structure, easy manufacture and convenient installation.

The main block body 1 of the output stack gas-liquid distribution device is provided with a hydrogen main channel 11 for hydrogen to circulate, and the block main body 1 is provided with an air main channel 12 for air to circulate. The main body 1 is provided with a coolant main flow channel 13 for cooling liquid to circulate. The upper and lower ends of the hydrogen main flow channel 11, the air main flow channel 12 and the coolant main flow channel 13 are respectively provided with openings 10, and the hydrogen main flow channel 11 An elbow 3 is installed in the upper opening 10 of the airflow channel, and a cover 4 is installed in the lower opening 10; a cover 4 is installed in the upper opening 10 of the air main duct 12, and an elbow 3 is installed in the lower opening 10; Both the upper and lower openings 10 of the main runner 13 are equipped with elbows 3, and the upper end of the coolant runner 13 is equipped with elbows 3 to facilitate the discharge of the gas generated by the coolant under high temperature conditions. The structure is simple, easy to manufacture and easy to install.

The above embodiments are the preferred embodiments of the utility model, but the embodiments of the utility model are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the utility model are all The equivalent replacement methods are all included in the protection scope of the present invention.

Claims

A gas-liquid distribution device for a stack comprises a main body (1) and an adapter plate (2). The adapter plate (2) is installed on one side of the main body (1), and the adapter plate ( 2) At least one set of connecting holes (21) is provided, and each set of connecting holes (21) includes at least one hydrogen hole (211), at least one air hole (212) and at least one cooling liquid hole (213), characterized by: The main body (1) of the agglomeration block is provided with a hydrogen main channel (11) for the circulation of hydrogen, and the main body (1) is provided with an air main channel (12) for the circulation of air. The main body (1) is provided with a coolant main flow channel (13) through which the cooling liquid can circulate. The hydrogen main flow channel (11), the air main flow channel (12) and the coolant main flow channel (13) are vertically oriented and separated from each other, The main body (1) of the agglomeration block is provided with a plurality of hydrogen flow channels (14), a plurality of air flow channels (15) and a plurality of cooling liquid flow channels (16), and one end of the plurality of hydrogen flow channels (14) is respectively connected with the hydrogen main flow channel (11) Connected, the other end of the several hydrogen split channels (14) is connected with the hydrogen holes (211) on the adapter plate (2); one end of the several air split channels (15) is respectively connected with the air main channel (12), and several The other end of the air distribution channel (15) is connected with the air hole (212) on the adapter plate (2); one end of a plurality of cooling liquid distribution channels (16) is respectively connected with the cooling liquid main channel (13), and several cooling liquid distribution channels The other end of (16) is communicated with the coolant hole (213) on the adapter plate (2).
The stack gas-liquid distribution device according to claim 1, characterized in that: the plurality of hydrogen gas distribution channels (14), a plurality of air distribution channels (15) and a plurality of cooling liquid distribution channels (16) are oriented transversely And separated from each other.
The stack gas-liquid distribution device according to claim 1 or 2, characterized in that: the main hydrogen main channel (11) and a plurality of hydrogen sub-flow channels (14) are vertical, and the air main channel ( 12) is vertical to a plurality of air distribution channels (15), and the cooling liquid main channel (13) is vertical to a plurality of cooling liquid distribution channels (16).
A stack gas-liquid distribution device according to claim 1 or 2, characterized in that the upper and lower ends of the hydrogen main channel (11), the air main channel (12) and the coolant main channel (13) are respectively provided with An opening (10), in which an elbow (3) is installed in the opening (10) at least one end of the hydrogen main flow channel (11), the air main flow channel (12) and the cooling liquid main flow channel (13), and the opening (10) at the other end A cover (4) or an elbow (3) is installed in ), one end of the elbow (3) is connected with the opening (10), and the other end of the elbow (3) is installed with a pipe.
A stack gas-liquid distribution device according to claim 3, characterized in that: the main body (1) is provided with a plurality of process holes (17), and the plurality of process holes (17) are connected with a plurality of The hydrogen splitter (14), a plurality of air splitter (15) and a plurality of cooling liquid splitter (16) are connected, and a plug (5) is installed on the process hole (17) for sealing.
A stack gas-liquid distribution device according to claim 3, characterized in that: the outer edge of the aggregate body (1) is provided with a plurality of bumps (18), and the plurality of bumps (18) ) Is provided with threaded holes (181), the threaded holes (181) are respectively communicated with the hydrogen main channel (11), the air main channel (12) and the coolant main channel (13), the threaded holes (181) A temperature sensor (182) or a pressure sensor (183) or a connector (184) with an external thread structure is installed on it.
A stack gas-liquid distribution device according to claim 3, characterized in that: a gasket is provided between the adapter plate (2) and the main body (1) of the block, and each group of connecting holes (21) The hydrogen holes (211), air holes (212) and cooling liquid holes (213) of) are respectively distributed from top to bottom.
The stack gas-liquid distribution device according to claim 4, characterized in that: an elbow (3) is installed on the upper opening (10) of the hydrogen main flow channel (11), and the lower end of the hydrogen main flow channel (11) A cover (4) is installed on the opening (10); a cover (4) is installed on the upper opening (10) of the air main duct (12), and an elbow is installed on the lower end opening (10) of the air main duct (12) (3); The elbow (3) or the cover (4) is installed on the upper opening (10) of the coolant main channel (13), and the elbow is installed on the lower end opening (10) of the coolant main channel (13) (3).
A fuel cell includes a stack module (6), an input stack gas-liquid distribution device (7) and an output stack distribution device (8). The stack module (6) is composed of several fuel cell monomers ( 60) Stacked from bottom to top, each fuel cell unit (60) is provided with a hydrogen input port (601), an air input port (602) and a coolant input port (603) on one side, so The hydrogen input port (601), air input port (602), and coolant input port (603) are distributed from top to bottom, and the other side is equipped with a hydrogen output port (604), air output port (605) and Coolant output port (606), the hydrogen output port (604), air output port (605), and cooling liquid output port (606) are distributed from top to bottom, the hydrogen input port (601), air input port (602) and the coolant input port (603) are connected to the stack gas-liquid distribution device (7), the hydrogen output port (604), the air output port (605) and the coolant output port (606) are respectively connected to the output power The stack distribution device (8) is connected, characterized in that: the output stack distribution device (8) and the input stack gas-liquid distribution device (7) are described in any one of the above claims 1 to 8 A stack gas-liquid distribution device, the stack gas-liquid distribution device comprising a block body (1) and an adapter plate (2), the adapter plate (2) is provided with at least one set of connecting holes (21) , Each group of connecting holes (21) includes at least one hydrogen hole (211), at least one air hole (212) and at least one coolant hole (213), the plurality of hydrogen holes (211) and air holes (212) And the coolant holes (213) are distributed from top to bottom, the adapter plate (2) is installed on one side of the block main body (1), and the block main body (1) passes through the adapter plate (2) and The stack module (6) is assembled together, and the hydrogen input port (601), air input port (602), and coolant input port (603) of the fuel cell unit (60) are respectively connected to the gas-liquid distribution device of the input stack (7) The hydrogen holes (211), air holes (212) and coolant holes (213) of the adapter plate (2) of (7) are in one-to-one correspondence, and the hydrogen output port (604) of the fuel cell unit (60) , The air outlet (605) and the coolant outlet (606) are respectively connected with the hydrogen holes (211), air holes (212) and coolant holes (213) of the adapter plate (2) of the output stack distribution device (8) ) One-to-one correspondence connection.
The fuel cell according to claim 9, characterized in that: the main body (1) of the agglomerate body (1) of the input stack gas-liquid distribution device (7) is provided with a hydrogen main flow channel (11) for the flow of hydrogen, The main body (1) is provided with an air main channel (12) for air circulation, and the main body (1) is provided with a coolant main channel (13) for cooling liquid. The upper and lower ends of the hydrogen main channel (11), the air main channel (12) and the coolant main channel (13) are respectively provided with openings (10), and the upper end opening (10) of the hydrogen main channel (11) is installed with a curved Head (3), the lower end opening (10) is equipped with a cover (4); the upper opening (10) of the air main duct (12) is equipped with a cover (4), and the lower end opening (10) is equipped with a curved Head (3); the upper opening (10) of the cooling liquid main channel (13) is equipped with a cover (4), and the lower opening (10) is equipped with an elbow (3).
A fuel cell according to claim 9, characterized in that: the main body (1) of the block body (1) of the output stack gas-liquid distribution device is provided with a hydrogen main flow channel (11) for the flow of hydrogen, and the set The block main body (1) is provided with an air main flow channel (12) for air circulation, and the block main body (1) is provided with a cooling liquid main flow channel (13) for cooling liquid to circulate, and the hydrogen main flow channel (11) The upper and lower ends of the air main channel (12) and the coolant main channel (13) are respectively provided with openings (10), and the upper end opening (10) of the hydrogen main channel (11) is provided with an elbow (3). ), the lower end opening (10) is equipped with a cover (4); the upper end opening (10) of the air main duct (12) is equipped with a cover (4), and the lower end opening (10) is equipped with an elbow (3) ); The upper and lower openings (10) of the coolant main channel (13) are both installed with elbows (3).