Fuel cell and feeding system

Abstract

The utility model relates to the technical field of fuel cells, and discloses a fuel cell and a feeding system, and the fuel cell comprises a reaction cavity, a first connecting block and a second connecting block. The reaction cavity is used for carrying out chemical reaction, and a plurality of first through holes and a plurality of second through holes are formed in the reaction cavity; the first connecting block is connected to the reaction cavity, a plurality of first channels are formed in the first connecting block, and the plurality of first channels are respectively communicated with the plurality of first through holes in a sealing manner; the second connecting block is connected to the reaction cavity, a plurality of second channels are formed in the second connecting block, and the second channels communicate with the second through holes in a sealed mode; wherein the cross sections, perpendicular to the axes, of the first channels are the same in shape and size, and the cross sections, perpendicular to the axes, of the second channels are the same in shape and size. According to the fuel cell and the feeding system disclosed by the invention, the problem of low power supply efficiency of the cell is solved or improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fuel cells, in particular to a fuel cell and a fuel supply system. BACKGROUND

[0002] A fuel cell is a power generation device that directly converts the chemical energy of fuel and oxygen into electrical energy, and its basic principle is based on the redox reaction of fuel and oxygen occurring at the electrode.

[0003] A fuel supply channel is provided on the fuel cell, which is mainly responsible for introducing fuel and oxygen into the fuel cell, separating the generated water, and ensuring the effective distribution and transmission of these fluids in the fuel cell system.

[0004] In related technologies, the fuel supply channel is in the shape of a trumpet mouth from the direction of transportation. Along the direction of transportation, the end close to the fuel cell is set as a large mouth. When fuel or oxygen is transported, the space suddenly increases at the trumpet mouth, causing turbulence of fuel or oxygen, resulting in errors in the flow measurement of fuel and oxygen, and the flow of fuel and oxygen cannot be accurately controlled, reducing the efficiency of the entire battery system. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the present application provides a fuel cell and a fuel supply system to solve or improve the problem of low battery power supply efficiency.

[0006] In a first aspect, the present application provides a fuel cell, comprising:

[0007] A reaction cavity for chemical reaction, the reaction cavity is provided with a plurality of first through holes and a plurality of second through holes;

[0008] A first connecting block connected to the reaction cavity, the first connecting block is provided with a plurality of first channels, and the plurality of first channels are in sealed communication with the plurality of first through holes, respectively;

[0009] A second connecting block connected to the reaction cavity, the second connecting block is provided with a plurality of second channels, and the plurality of second channels are in sealed communication with the plurality of second through holes, respectively;

[0010] Wherein, the shape of the cross section of each first channel perpendicular to its axis is the same and the size is equal, and the shape of the cross section of each second channel perpendicular to its axis is the same and the size is equal.

[0011] In the embodiment, the first and second through holes are in communication with the reaction cavity, the first connecting block is connected to the reaction cavity and has first channels corresponding to the first through holes, the first channels are used to deliver or output the reaction gas for generating electric energy into the reaction cavity, the second connecting block is connected to the reaction cavity and has second channels corresponding to the second through holes, and the second channels are used to deliver or output the reaction gas for generating electric energy into the reaction cavity. The cross section of the first channel perpendicular to the axis is constant in size, and the cross section of the second channel perpendicular to the axis is constant in size. It can be known that the volume inside the first channel does not change along the axis direction, and the volume inside the second channel does not change along the axis direction. The reaction gas is prevented from being turbulent during passing through the first and second channels. Therefore, the pressure is stable everywhere during the reaction gas passing through the first and second channels and being delivered into the reaction cavity. The delivery amount of the reaction gas delivered into the reaction cavity can be accurately detected, the accuracy of the reaction gas ratio is improved, and the battery power supply efficiency is improved.

[0012] In an alternative embodiment, the first channels include an air input channel, a cooling liquid input channel and a fuel output channel, all in communication with the reaction cavity.

[0013] The second channels include an air output channel, a cooling liquid output channel and a fuel input channel, all in communication with the reaction cavity.

[0014] The monitoring device is used to monitor the temperature and pressure of the air input channel, the cooling liquid input channel, the air output channel and the cooling liquid output channel, and to monitor the pressure of the fuel output channel and the fuel input channel.

[0015] In an alternative embodiment, the monitoring device includes:

[0016] The first temperature and pressure sensor is installed in the air input channel and is used to detect the temperature and pressure in the air input channel.

[0017] The second temperature and pressure sensor is installed in the cooling liquid input channel and is used to detect the temperature and pressure in the cooling liquid input channel.

[0018] The first pressure sensor is installed in the fuel output channel and is used to detect the pressure in the fuel output channel.

[0019] In an alternative embodiment, the monitoring device further includes:

[0020] The third temperature and pressure sensor is installed in the air output channel and is used to detect the temperature and pressure in the air output channel.

[0021] A fourth temperature and pressure sensor is installed in the cooling liquid output channel to detect the temperature and pressure in the cooling liquid output channel.

[0022] A second pressure sensor is installed in the fuel input channel to detect the pressure in the fuel input channel.

[0023] In an alternative embodiment, the cooling liquid input channel comprises a first segment and a second segment in communication, the first segment and the second segment are bent at a first preset angle, a rounded corner is arranged at the connection between the first segment and the second segment, the second segment is in communication with one of the first through holes, and the second temperature and pressure sensor is installed in the second segment.

[0024] In an alternative embodiment, the cooling liquid output channel comprises a third segment and a fourth segment in communication, the third segment and the fourth segment are bent at a second preset angle, a rounded corner is arranged at the connection between the third segment and the fourth segment, the fourth segment is in communication with one of the second through holes, and the fourth temperature and pressure sensor is installed in the fourth segment.

[0025] In an alternative embodiment, the material of the reaction cavity, the first connecting block and the second connecting block is self-repairing plastic material.

[0026] In a second aspect, the application further provides a fuel supply system applied to the fuel cell.

[0027] The fuel supply system comprises:

[0028] A fuel storage tank is provided with a discharge port.

[0029] An atomizing nozzle is in communication with the discharge port at its inlet end and in communication with the fuel input channel at its outlet end.

[0030] A controller is electrically connected to the atomizing nozzle to control the particle size of the fuel.

[0031] In this embodiment, the fuel in the fuel storage tank is delivered to the atomizing nozzle to atomize the fuel, reduce the diameter of the fuel particles, increase the overall reaction contact area, and improve the reaction rate of the fuel in the reaction cavity.

[0032] In an alternative embodiment, the fuel supply system further comprises:

[0033] A steam-water separator is provided with a material inlet, a drain port and a first exhaust end, the material inlet is in communication with the fuel output channel, the drain port is provided with a drain valve, the drain valve is provided with a first drain end, and the first drain end is in communication with the inlet end of the atomizing nozzle.

[0034] An ejector, an input end of the ejector being communicated with the first exhaust end and the discharge port, an output end of the ejector being communicated with the feed end of the atomizing nozzle through a pipeline.

[0035] In an alternative embodiment, a humidity sensor is further included, the humidity sensor being installed in the pipeline between the atomizing nozzle and the fuel input channel, the humidity sensor being electrically connected with the controller.

[0036] In an alternative embodiment, a heat exchanger is further included, a feed end of the heat exchanger being communicated with the discharge port of the fuel storage tank, an output end of the heat exchanger being communicated with the input end of the ejector. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0038] Figure 1 A structure schematic diagram of a first connecting block in a fuel cell according to an embodiment of the present application;

[0039] Figure 2 A structure schematic diagram of a second connecting block in a fuel cell according to an embodiment of the present application;

[0040] Figure 3 A sectional view of a second connecting block in a fuel cell according to an embodiment of the present application;

[0041] Figure 4 A structure schematic diagram of a fuel supply system according to an embodiment of the present application.

[0042] EXPLANATION OF REFERENCE NUMERALS:

[0043] 1, reaction cavity; 2, first connecting block; 201, air input channel; 202, cooling liquid input channel; 2021, first section; 2022, second section; 203, fuel output channel; 3, second connecting block; 301, air output channel; 302, cooling liquid output channel; 3021, third section; 3022, fourth section; 303, fuel input channel; 4, fuel storage tank; 5, atomizing nozzle; 6, controller; 7, steam-water separator; 8, ejector; 9, humidity sensor; 10, heat exchanger; 11, on-off valve; 12, first regulating valve; 13, second regulating valve; 14, first pressure gauge; 15, second pressure gauge; 16, third pressure gauge; 17, drain valve; 18, pressure relief valve; 19, first pressure sensor; 20, exhaust valve. DETAILED DESCRIPTION

[0044] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0045] A fuel cell is a power generation device that directly converts the chemical energy of fuel and oxygen into electrical energy, and its basic principle is based on the oxidation-reduction reaction of fuel and oxygen on the electrode.

[0046] A fuel cell is provided with a fuel supply channel, which is mainly responsible for introducing fuel and oxygen into the fuel cell, separating the generated water, and ensuring the effective distribution and transmission of these fluids in the fuel cell system.

[0047] In the related art, the fuel supply channel is in the shape of a trumpet mouth from the conveying direction, and along the conveying direction, the end close to the fuel cell is set as a large mouth. When conveying fuel or oxygen, the space suddenly increases at the trumpet mouth, causing turbulence of the fuel or oxygen, resulting in errors in the flow measurement of the fuel and oxygen, and the flow of the fuel and oxygen cannot be accurately controlled, reducing the efficiency of the entire battery system. In order to solve or improve the problem of low battery power supply efficiency, therefore, the present application provides a manifold assembly, a fuel supply system and a fuel cell.

[0048] The embodiments of the present application will be described below in conjunction with Figures 1 to 4 .

[0049] According to the embodiments of the present application, in one aspect, a fuel cell is provided, comprising: a reaction cavity 1, a first connecting block 2 and a second connecting block 3.

[0050] Specifically, the reaction cavity 1 is used for chemical reaction, and the reaction cavity 1 is provided with a plurality of first through holes and a plurality of second through holes;

[0051] The first connecting block 2 is connected to the reaction cavity 1, and a plurality of first channels are formed in the first connecting block 2, and the plurality of first channels are in sealed communication with the plurality of first through holes, respectively;

[0052] The second connecting block 3 is connected to the reaction cavity 1, and a plurality of second channels are formed in the second connecting block 3, and the plurality of second channels are in sealed communication with the plurality of second through holes, respectively;

[0053] Wherein, the shape of the cross section perpendicular to the axis of each first channel is the same and the size is equal, and the shape of the cross section perpendicular to the axis of each second channel is the same and the size is equal.

[0054] In this embodiment, the plurality of first through holes and the plurality of second through holes are in communication with the reaction cavity 1, the first connecting block 2 is connected to the reaction cavity 1, and a plurality of first channels are provided corresponding to the plurality of first through holes, the plurality of first channels being used to transport or output reaction gas used to generate electric energy into the reaction cavity 1, and the second connecting block 3 is connected to the reaction cavity 1, and a plurality of second channels are provided corresponding to the plurality of second through holes, the plurality of second channels being used to transport or output reaction gas used to generate electric energy into the reaction cavity 1.

[0055] The size of the cross section perpendicular to the axis of the first channel is constant, and the size of the cross section perpendicular to the axis of the second channel is constant, so it can be known that the volume inside the first channel does not change along the axis direction of the first channel, and the volume inside the second channel does not change along the axis direction of the second channel, preventing the reaction gas from being turbulent during passing through the first channel and the second channel. Therefore, the pressure at each place is stable during the reaction gas passing through the first channel and the second channel and being transported into the reaction cavity 1, which facilitates accurate detection of the amount of reaction gas transported into the reaction cavity 1, improves the accuracy of reaction gas proportioning, and improves the efficiency of battery power supply.

[0056] In one embodiment, the plurality of first channels includes an air input channel 201, a cooling liquid input channel 202, and a fuel output channel 203, all of which are in communication with the reaction cavity 1.

[0057] The plurality of second channels includes an air output channel 301, a cooling liquid output channel 302, and a fuel input channel 303, all of which are in communication with the reaction cavity 1.

[0058] A monitoring device is used to detect the temperature and pressure of the air input channel 201, the cooling liquid input channel 202, the air output channel 301, and the cooling liquid output channel 302, and to monitor the pressure of the fuel output channel 203 and the fuel input channel 303.

[0059] In this embodiment, air, fuel, and cooling liquid are transported into the reaction cavity 1 through the air input channel 201, the cooling liquid input channel 202, and the fuel input channel 303 to undergo a chemical reaction, and the remaining air is discharged from the air output channel 301, and the remaining fuel and reaction-generated water are discharged from the fuel output channel 203. The monitoring device detects the temperature and pressure of the air input channel 201, the cooling liquid input channel 202, the air output channel 301, and the cooling liquid output channel 302, so as to adjust the temperature and pressure when air is input, the temperature and pressure when cooling liquid is input, the temperature and pressure when air is output, the temperature and pressure when cooling liquid is output, the pressure when fuel is input, and the pressure when fuel is output at any time, so as to improve the reaction rate and improve the efficiency of the fuel cell.

[0060] Specifically, the fuel is hydrogen, and the air input channel 201 can input oxygen.

[0061] In one embodiment, the monitoring device comprises:

[0062] a first temperature and pressure sensor installed in the air input channel 201 for detecting the temperature and pressure in the air input channel 201;

[0063] a second temperature and pressure sensor installed in the cooling liquid input channel 202 for detecting the temperature and pressure in the cooling liquid input channel 202;

[0064] a first pressure sensor 19 installed in the fuel output channel 203 for detecting the pressure in the fuel output channel 203.

[0065] In one embodiment, the monitoring device further comprises:

[0066] a third temperature and pressure sensor installed in the air output channel 301 for detecting the temperature and pressure in the air output channel 301;

[0067] a fourth temperature and pressure sensor installed in the cooling liquid output channel 302 for detecting the temperature and pressure in the cooling liquid output channel 302;

[0068] a second pressure sensor installed in the fuel input channel 303 for detecting the pressure in the fuel input channel 303.

[0069] In this embodiment, the first temperature and pressure sensor, the second temperature and pressure sensor, the first pressure sensor 19, the third temperature and pressure sensor, the fourth temperature and pressure sensor, and the second pressure sensor are used to monitor the temperature and pressure of the air input channel 201, the cooling liquid input channel 202, the air output channel 301, and the cooling liquid output channel 302 in real time, and to monitor the pressure of the fuel output channel 203 and the fuel input channel 303.

[0070] In one embodiment, the cooling liquid input channel 202 comprises a first segment 2021 and a second segment 2022 connected in communication, the first segment 2021 and the second segment 2022 are bent at a first preset angle, a rounded corner is arranged at the connection between the inside of the first segment 2021 and the second segment 2022, the second segment 2022 is in communication with a first through hole, and the second temperature and pressure sensor is installed in the second segment 2022.

[0071] And / or, the cooling liquid output channel 302 comprises a third segment 3021 and a fourth segment 3022 connected in communication, the third segment 3021 and the fourth segment 3022 are bent at a second preset angle, a rounded corner is arranged at the connection between the inside of the third segment 3021 and the fourth segment 3022, the fourth segment 3022 is in communication with a second through hole, and the fourth temperature and pressure sensor is installed in the fourth segment 3022.

[0072] In this embodiment, the first section 2021 and the second section 2022 of the cooling liquid input channel 202 are connected in a bent manner, which can shorten the length in the direction of the vertical end plate, save the top space of the end plate, and the connection between the first section 2021 and the second section 2022 is provided with a rounded corner, which is less hindered when the cooling liquid is input.

[0073] The third section 3021 and the fourth section 3022 of the cooling liquid output channel 302 are connected in a bent manner, which can shorten the length in the direction of the vertical end plate, save the top space of the end plate, and the connection between the third section 3021 and the fourth section 3022 is provided with a rounded corner, which is less hindered when the cooling liquid is input.

[0074] Specifically, the first preset angle and the second preset angle are both 90°.

[0075] In one embodiment, the material of the reaction cavity 1, the first connecting block 2 and the second connecting block 3 is self-repairing plastic material.

[0076] After a long time of use, small cracks are generated on the reaction cavity 1, the first connecting block 2 or the second connecting block 3, but it is difficult for the staff to find, which leads to a deviation between the actual amount of fuel or air input and the theoretical amount, resulting in inaccurate data. However, it is difficult for the staff to find the small cracks. When the reaction cavity 1, the first connecting block 2 and the second connecting block 3 are made of self-repairing plastic material, the small cracks can be automatically repaired, improving the work efficiency.

[0077] According to the embodiments of the present application, on the other hand, a feeding system is also provided, which is applied to a fuel cell;

[0078] The feeding system comprises:

[0079] The fuel storage tank 4 is provided with a discharge port;

[0080] The atomizing nozzle 5 is in communication with the discharge port at the inlet end, and in communication with the fuel input channel 303 at the outlet end;

[0081] The controller 6 is electrically connected with the atomizing nozzle 5, and is used for controlling the granularity of the fuel.

[0082] In this embodiment, the fuel in the fuel storage tank 4 is transported to the atomizing nozzle 5, the fuel is atomized, the diameter of the fuel particles is reduced, the overall reaction contact area is improved, and the reaction rate of the fuel in the reaction cavity 1 is improved.

[0083] In one embodiment, the feeding system further comprises:

[0084] A steam-water separator 7 is provided with a material inlet, a water outlet and a first exhaust end, the material inlet is communicated with the fuel outlet channel 203, the water outlet is provided with a water valve 17, the water valve 17 is provided with a first water outlet end, the first water outlet end is communicated with the feeding end of the atomizing nozzle 5;

[0085] An ejector 8, the input end of the ejector 8 is communicated with the first exhaust end and the material outlet, the output end of the ejector 8 is communicated with the feeding end of the atomizing nozzle 5 through a pipeline.

[0086] In this embodiment, the unreacted fuel and the reaction generated water in the fuel outlet channel 203 are input into the steam-water separator 7, the fuel and the reaction generated water are separated, part of the reaction generated water is transported to the feeding end of the atomizing nozzle 5 through the first water outlet end, the fuel is atomized and humidified by the atomizing nozzle 5, and the reaction efficiency of the fuel in the reaction cavity 1 is improved. The ejector 8 provides power for the fuel transportation, increases the pressure of the fuel, and improves the atomization effect.

[0087] Specifically, a first pressure gauge 14 is arranged on the pipeline between the ejector 8 and the atomizing nozzle 5.

[0088] Specifically, the water valve 17 is provided with a second water outlet end, the second water outlet end is used for discharging the reaction generated water in the steam-water separator 7 which is not transported to the atomizing nozzle 5.

[0089] In one embodiment, a heat exchanger 10 is further included, the feeding end of the heat exchanger 10 is communicated with the material outlet of the fuel storage tank 4, the material outlet of the heat exchanger 10 is communicated with the input end of the delivery pump, the heat exchanger 10 is used for heating the fuel, increasing the temperature of the fuel, and improving the reaction efficiency of the fuel in the reaction cavity 1.

[0090] Specifically, a switch valve 11 is further included, the feeding end of the switch valve 11 is communicated with the material outlet of the heat exchanger 10, the material outlet of the switch valve 11 and the input end of the ejector 8 are communicated, and the switch valve 11 is used for controlling the fuel transportation.

[0091] Specifically, a first regulating valve 12 and a second regulating valve 13 are further included, the regulating range of the first regulating valve 12 is larger than that of the second regulating valve 13, the feeding ends of the first regulating valve 12 and the second regulating valve 13 are communicated with the material outlet of the switch valve 11 through a three-way connector, and the material outlets of the first regulating valve 12 and the second regulating valve 13 are communicated with the input end of the ejector 8 through a three-way connector. The first regulating valve 12 is adjusted first, the fuel transportation amount is controlled, when the fuel transportation amount is about to reach the preset value, the opening adjustment of the first regulating valve 12 is stopped, the second regulating valve 13 is opened, and the fuel transportation amount is finely adjusted, so as to improve the precision of the fuel transportation amount.

[0092] Specifically, a second pressure gauge 15 is arranged between the first regulating valve 12 and the ejector 8.

[0093] Specifically, a third pressure gauge 16 is arranged between the second regulating valve 13 and the ejector 8.

[0094] Specifically, a pressure relief valve 18 is further arranged, which is connected to the pipeline between the ejector 8 and the atomizing nozzle 5.

[0095] In an embodiment, a humidity sensor 9 is further arranged, which is arranged in the pipeline between the atomizing nozzle 5 and the fuel input channel 303, and is electrically connected to the controller 6, which is in communication with the drain valve 17.

[0096] In this embodiment, the humidity sensor 9 is used to detect the humidity of the fuel delivered by the atomizing nozzle 5 into the reaction chamber 1, and when the humidity does not reach the preset humidity, the controller 6 controls the first drain end of the drain valve 17 to increase the amount of reaction-generated water delivered to the atomizing nozzle 5. When the humidity exceeds the preset humidity, the controller 6 controls the first drain end of the drain valve 17 to stop delivering reaction-generated water to the atomizing nozzle 5.

[0097] In the following, an embodiment is described in combination with the accompanying drawings. Figures 1 to 3 The above all solutions are comprehensively described.

[0098] The fuel storage tank 4 stores hydrogen gas, the on-off valve 11 is opened, the hydrogen gas is heated to increase the temperature by the heat exchanger 10, the first regulating valve 12 is opened and the second regulating valve 13 is closed, and the ejector 8 is opened to deliver the hydrogen gas into the reaction chamber 1 through the fuel input channel 303. The hydrogen gas is atomized when passing through the atomizing nozzle 5 to increase the reaction rate of the hydrogen gas.

[0099] The regulating range of the first regulating valve 12 is greater than that of the second regulating valve 13, the inlet ends of the first regulating valve 12 and the second regulating valve 13 are in communication with the outlet end of the on-off valve 11 through a three-way connector, and the outlet ends of the first regulating valve 12 and the second regulating valve 13 are in communication with the input end of the ejector 8 through a three-way connector. The first regulating valve 12 is first adjusted to control the fuel delivery amount, and when the fuel delivery amount is about to reach the preset value, the opening adjustment of the first regulating valve 12 is stopped, the second regulating valve 13 is opened, and the fuel delivery amount is finely adjusted to improve the accuracy of the fuel delivery amount.

[0100] When the pressure in the fuel input channel 303 is greater than the preset value, the pressure relief valve 18 is opened to release the pressure.

[0101] After the whole supply system is running, the reacted hydrogen and the reaction generated water output from the fuel output channel 203 are transported to the steam-water separator 7, a drain valve 17 is installed on the drain port of the steam-water separator 7, the drain valve 17 is provided with a first drain end and a second drain end, the first drain end is communicated with the feed end of the atomizing nozzle 5 to humidify the fuel and improve the reaction efficiency of the fuel in the reaction cavity 1. The second drain end is used to drain the reaction generated water in the steam-water separator 7 which is not transported to the atomizing nozzle 5.

[0102] The steam-water separator 7 is provided with a second exhaust end, an exhaust valve 20 is installed on the second exhaust end, the second exhaust end is used to drain the gas in the steam-water separator 7 and improve the proportion of hydrogen in the steam-water separator 7. When the proportion of hydrogen is less than the preset value, the exhaust valve 20 is opened to drain the gas in the steam-water separator 7, and when the proportion of hydrogen in the steam-water separator 7 reaches the preset value, the first exhaust end is opened to transport the hydrogen to the ejector 8.

[0103] Specifically, when the pressure at the outlet of the ejector 8 is lower than that at the inlet, the fluid is sucked in by using the pressure difference. When the fluid passes through the contraction part in the ejector 8, the speed increases and the pressure decreases to generate a negative pressure area to suck in the fluid. The ejector 8 is a mechanical structure inside which the fluid is sucked in to reduce the failure rate.

[0104] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A fuel cell, characterized in that, include: A reaction chamber (1) is used for carrying out chemical reactions. The reaction chamber (1) is provided with a plurality of first through holes and a plurality of second through holes. A first connecting block (2) is connected to the reaction chamber (1). The first connecting block (2) has multiple first channels, and the multiple first channels are respectively sealed and connected to multiple first through holes. The second connecting block (3) is connected to the reaction chamber (1). The second connecting block (3) has multiple second channels, which are respectively sealed and connected to multiple second through holes. The first channels have the same shape and size in their cross-sections perpendicular to their axes, and the second channels have the same shape and size in their cross-sections perpendicular to their axes.

2. The fuel cell according to claim 1, characterized in that, The plurality of the first channels include an air input channel (201), a coolant input channel (202), and a fuel output channel (203), all of which are connected to the reaction chamber (1); The plurality of second channels include an air output channel (301), a coolant output channel (302), and a fuel input channel (303), all of which are connected to the reaction chamber (1); A monitoring device is used to monitor the temperature and pressure of the air input channel (201), the coolant input channel (202), the air output channel (301), and the coolant output channel (302), and to monitor the pressure of the fuel output channel (203) and the fuel input channel (303).

3. The fuel cell according to claim 2, characterized in that, The monitoring device includes: A first temperature and pressure sensor is installed in the air input channel (201) to detect the temperature and pressure in the air input channel (201); The second temperature and pressure sensor is installed in the coolant inlet channel (202) to detect the temperature and pressure in the coolant inlet channel (202); A first pressure sensor (19) is installed in the fuel output channel (203) to detect the pressure in the fuel output channel (203).

4. The fuel cell according to claim 3, characterized in that, The monitoring device also includes: A third temperature and pressure sensor is installed in the air output channel (301) to detect the temperature and pressure in the air output channel (301); A fourth temperature and pressure sensor is installed in the coolant output channel (302) to detect the temperature and pressure in the coolant output channel (302); A second pressure sensor is installed in the fuel input channel (303) to detect the pressure in the fuel input channel (303).

5. The fuel cell according to claim 4, characterized in that, The coolant inlet channel (202) includes a first section (2021) and a second section (2022) that are connected. The first section (2021) and the second section (2022) are bent at a first preset angle. The connection between the first section (2021) and the second section (2022) is provided with rounded corners. The second section (2022) is connected to a first through hole. The second temperature and pressure sensor is installed in the second section (2022). And / or, the coolant output channel (302) includes a connected third section (3021) and a fourth section (3022), the third section (3021) and the fourth section (3022) are bent at a second preset angle, the connection between the third section (3021) and the fourth section (3022) is provided with rounded corners, the fourth section (3022) is connected to a second through hole, and the fourth temperature and pressure sensor is installed in the fourth section (3022).

6. A feeding system, characterized in that, Applied to the fuel cell according to any one of claims 2 to 5; The feeding system includes: Fuel storage tank (4) is equipped with a discharge port; Atomizing nozzle (5), the inlet end of the atomizing nozzle (5) is connected to the outlet, and the outlet end of the atomizing nozzle (5) is connected to the fuel input channel (303); The controller (6) is electrically connected to the atomizing nozzle (5) and is used to control the particle size of the fuel.

7. The feeding system according to claim 6, characterized in that, Also includes: The steam-water separator (7) is provided with a material inlet, a drain outlet and a first exhaust end. The material inlet is connected to the fuel output channel (203). The drain outlet is provided with a drain valve (17). The drain valve (17) is provided with a first drain end. The first drain end is connected to the feed end of the atomizing nozzle (5). The ejector (8) has its input end connected to the first exhaust end and the discharge port, and its output end connected to the feed end of the atomizing nozzle (5) through a pipe.

8. The feeding system according to claim 7, characterized in that, A first pressure gauge (14) is installed on the pipe between the ejector (8) and the atomizing nozzle (5).

9. The feeding system according to claim 7, characterized in that, It also includes a humidity sensor (9), which is installed in the pipe between the atomizing nozzle (5) and the fuel input channel (303), and the humidity sensor (9) is electrically connected to the controller (6).

10. The feeding system according to claim 7, characterized in that, It also includes a heat exchanger (10), the inlet of which is connected to the outlet of the fuel storage tank (4), and the outlet of which is connected to the input of the ejector (8).

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