Solid oxide fuel cell power generation system

Abstract

The invention relates to the technical field of fuel cells, in particular to a solid oxide fuel cell power generation system. Comprising a box body, a power generation module, a fuel supply module and an air supply module, the box body is provided with a heat preservation cavity, the power generation module comprises a plurality of fuel cells, the fuel supply module and the air supply module are connected with the fuel cells, and fuel and air are supplied to the fuel cells respectively, so that the fuel cells generate power; the power generation module generates power through all the fuel cells at the same time, the power generation power of the power generation system can be remarkably improved, and due to the fact that all the fuel cells are internally provided with the heat preservation cavities, waste heat generated in the working process of the fuel cells enters the heat preservation cavities, and heat is supplied to all the fuel cells while the heat is supplied to all the fuel cells. And heat can be supplied to fuel and air of the fuel supply module and the air supply module, so that the heat of the heat preservation cavity can be fully utilized, and the power generation power of the power generation system is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, and in particular to a solid oxide fuel cell power generation system. Background Art

[0002] Solid Oxide Fuel Cell (SOFC) is a new type of energy conversion device with the characteristics of high power generation efficiency, wide fuel adaptability, and clean and environmental protection. It can directly convert the chemical energy of fuels such as methane and hydrogen into electrical energy or thermal energy without producing any harmful substances.

[0003] For example, a SOFC power generation system disclosed in the patent document with publication number CN110896228A includes multiple SOFC power generation devices, each of which includes a SOFC power generation unit and a PCS unit. The PCS unit includes an inverter and a DC voltage converter. The SOFC power generation system achieves external power generation through power generation of the SOFC power generation unit and current conversion of the PCS unit.

[0004] Since the SOFC power generation unit generates a large amount of heat during the power generation process, it is difficult for existing SOFC power generation systems to utilize this heat, resulting in a reduction in the power generation capacity of the SOFC power generation system, making it difficult to meet the power demand of high-power power facilities such as ships. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose a solid oxide fuel cell power generation system to solve the technical problem that the solid oxide fuel cell power generation system in the prior art is difficult to effectively utilize the heat generated by the power generation unit during the power generation process.

[0006] In order to achieve the above technical objectives, the technical solution of the present invention provides a solid oxide fuel cell power generation system, comprising: The box body is provided with a heat preservation chamber; A power generation module, comprising a plurality of fuel cells, each of which is arranged in parallel and disposed inside the heat preservation chamber; A fuel supply module, which is disposed in the heat preservation chamber and connected to each of the fuel cells, and is used to supply fuel to each of the fuel cells; The air supply module is connected to each of the fuel cells and is used to supply air to each of the fuel cells.

[0007] In some embodiments, the power generation system also includes a heat exchange module and a tail gas pipe, the heat exchange module is provided with a tail gas cavity and an air cavity, the air supply module is connected to the air cavity, and the two ends of the tail gas pipe are respectively connected to the tail gas cavity and the tail gas outlet of each fuel cell.

[0008] In some embodiments, the heat exchange module includes a plurality of heat exchangers, each of which is arranged at intervals on the top of the box body and fits against the top surface of the box body, and the exhaust cavity and the air cavity are arranged in each of the heat exchangers.

[0009] In some embodiments, the power generation system also includes a recovery module, and the heat exchange module is also provided with an exhaust gas outlet, the exhaust gas outlet is connected to the exhaust gas cavity, and the recovery module is connected to the exhaust gas outlet for discharging condensed water discharged from the exhaust gas outlet.

[0010] In some embodiments, the recovery module includes a recovery main pipe, several water outlet branch pipes and several exhaust pipes, one end of each water outlet branch pipe is connected to the exhaust gas outlet, the other end of each water outlet branch pipe is connected to the recovery main pipe, and each exhaust pipe is connected to the recovery main pipe.

[0011] In some embodiments, the recovery module further includes a plurality of recovery branch pipes, one end of each of the recovery branch pipes is connected to the recovery main pipe, and the other end of each of the recovery branch pipes extends to the insulation chamber.

[0012] In some embodiments, the air supply module includes an air intake pipe and an air supply pipe, and the heat exchange module is also provided with an air inlet port and an air outlet port, one end of the air intake pipe is connected to the atmosphere and extends toward the ground, and the other end of the air intake pipe is connected to the air inlet port, and both ends of the air supply pipe are respectively connected to the air outlet port and each of the fuel cells.

[0013] In some embodiments, the air supply module further includes an air intake fan connected to each of the air supply pipes.

[0014] In some embodiments, a plurality of air baffles are disposed inside the heat exchange module, the air cavity is located on the peripheral side of the tail gas cavity and forms an air flow channel extending from the air inlet to the air outlet, and each of the air baffles is fixed to the side wall of the air flow channel and extends toward the air inlet.

[0015] In some embodiments, adjacent air blocking plates are arranged in a staggered manner, and each of the air blocking plates is provided with a plurality of air holes arranged at intervals.

[0016] Compared with the prior art, the beneficial effects of the solid oxide fuel cell power generation system provided by the present invention include: by setting a box body, a power generation module, a fuel supply module and an air supply module, the box body is provided with a heat preservation chamber, the power generation module includes a plurality of fuel cells, the fuel supply module and the air supply module are connected with each fuel cell, and fuel and air are respectively supplied to each fuel cell, so that each fuel cell generates electricity, and the power generation module generates electricity through each fuel cell at the same time, which can significantly improve the power generation power of the power generation system, and because each fuel cell is arranged in the heat preservation chamber, the waste heat generated during the operation of the fuel cell will enter the heat preservation chamber, while providing heat for each fuel cell, it can also provide heat for the fuel and air of the fuel supply module and the air supply module, so that the heat of the heat preservation chamber can be fully utilized, thereby significantly improving the power generation power of the power generation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a solid oxide fuel cell power generation system provided in an embodiment of the present invention.

[0018] Figure 2 A schematic structural diagram of a solid oxide fuel cell power generation system provided in an embodiment of the present invention.

[0019] Figure 3 A cross-sectional view of a heat exchanger of a solid oxide fuel cell power generation system provided in an embodiment of the present invention.

[0020] Among them, the reference numerals in the figure are: 10—Box 11—Insulation Chamber 20—Power Generation Module 30 - fuel supply module 40 - air supply module 41 - air intake pipe 42—air supply pipe 43—air intake fan 50—heat exchange module 51 - tail gas cavity 52 - air cavity 53 - heat exchanger 54—air inlet 55—air outlet 56—exhaust inlet 57—air blocking plate 58—recovery port 60—exhaust pipe 70—recovery module 71—recovery main pipe 72—water outlet branch pipe 73 - exhaust pipe 74 - recovery branch pipe 80 - exhaust fan 511—receiving groove 512—arc-shaped flow guide surface 521—air flow channel 571—Stomata. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] An embodiment of the present invention provides a solid oxide fuel cell power generation system, which improves the power generation capacity of the power generation system by utilizing the waste heat generated during the power generation process of the power generation system, thereby solving the technical problem in the prior art that it is difficult for the solid oxide fuel cell power generation system to effectively utilize the heat generated during the power generation process of the power generation unit, resulting in the power generation capacity of the power generation system being difficult to meet the power demand of high-power power facilities such as ships and island power stations. At the same time, by recovering water vapor in the exhaust gas, the technical problem of water shortage in ships and island power station facilities is solved.

[0023] The solid oxide fuel cell power generation system of this embodiment is as follows Figure 1 and 2 As shown, it includes a box body 10, a power generation module 20, a fuel supply module 30 and an air supply module 40, the box body 10 is provided with a heat preservation chamber 11; the power generation module 20 includes a plurality of fuel cells, each of which is arranged in parallel and arranged in the heat preservation chamber 11; the fuel supply module 30 is arranged in the heat preservation chamber 11 and is connected to each fuel cell for supplying fuel to each fuel cell; the air supply module 40 is connected to each fuel cell for supplying air to each fuel cell.

[0024] Specifically, the solid oxide fuel cell power generation system is provided with a box body 10, a power generation module 20, a fuel supply module 30 and an air supply module 40. The box body 10 is provided with an insulation chamber 11. The power generation module 20 includes a plurality of fuel cells. The fuel supply module 30 and the air supply module 40 are connected to each fuel cell, and fuel and air are respectively supplied to each fuel cell, so that each fuel cell generates electricity. The power generation module 20 generates electricity through each fuel cell at the same time, which can significantly improve the power generation power of the power generation system. Since each fuel cell is arranged in the insulation chamber 11, the waste heat generated during the operation of the fuel cell will enter the insulation chamber 11. While providing heat for each fuel cell, it can also provide heat for the fuel and air of the fuel supply module 30 and the air supply module 40, so that the heat of the insulation chamber 11 can be fully utilized, thereby significantly improving the power generation power of the power generation system. Through the provision of the box body 10, the power generation system can be formed as a whole, thereby facilitating the installation, arrangement and maintenance of the power generation system.

[0025] In this embodiment, the utilization of heat from the power generation module 20 includes the utilization of heat from the power generation module 20 itself during its operation and the utilization of heat from the high-temperature exhaust gas generated by the power generation module 20. The heat generated from its own operation enters the insulation chamber 11 and is transferred to each fuel cell by the insulation chamber 11. The heat from the high-temperature exhaust gas is utilized by exchanging heat with the air passing into each fuel cell.

[0026] It can be understood that the fuel of each fuel cell stack can be hydrogen, methane, etc., and the oxygen in the air serves as an oxidant to provide the fuel for electrochemical reaction to generate electricity.

[0027] In this embodiment, Figure 2 As shown, the fuel supply module 30 includes a fuel tank, a desulfurizer, a filter, an electric stop valve, a manual stop valve and a flow meter connected in sequence. The fuel is first desulfurized by the desulfurizer and then flows through the filter, and then filtered by the filter, and then passes through the electric stop valve, manual stop valve and flow meter in sequence, and finally enters each fuel cell.

[0028] In one embodiment, Figure 1 and 2 As shown, the power generation system also includes a heat exchange module 50 and an exhaust pipe 60. The heat exchange module 50 is provided with an exhaust cavity 51 and an air cavity 52. ​​The air supply module 40 is connected to the air cavity 52. ​​The two ends of the exhaust pipe 60 are respectively connected to the exhaust cavity 51 and the exhaust outlet of each fuel cell. Specifically, the high-temperature exhaust gas generated during the operation of each fuel cell will directly enter the exhaust pipe 60, and then enter the exhaust cavity 51 through the exhaust pipe 60. The air will enter the air supply module 40 from the air cavity 52, and then be supplied to each fuel cell by the air supply module 40. The high-temperature exhaust gas exchanges heat with the air in the exhaust cavity 51 and the air cavity 52, and the heat is supplied to the air, so that the air is heated and heated, thereby realizing the utilization of the heat in the exhaust gas, improving the power generation of the fuel cell, and meeting the power demand of large-scale power facilities such as ships and island power stations.

[0029] It can be understood that the heat exchange module 50 can be any heat exchange structure that can perform heat exchange between exhaust gas and air, and the heat exchange module 50 can be arranged at any position such as inside or outside the box body 10.

[0030] In one embodiment, Figure 1 and 2As shown, the heat exchange module 50 includes a plurality of heat exchangers 53, each heat exchanger 53 is arranged at intervals on the top of the box body 10 and fits with the top surface of the box body 10, and the tail gas cavity 51 and the air cavity 52 are arranged in each heat exchanger 53. Specifically, the heat exchange module 50 is provided with a plurality of heat exchangers 53, and then the heat exchange between the tail gas and the air can be realized through the synchronous cooperation of each heat exchanger 53, thereby improving the heat exchange efficiency. The heat exchanger 53 is arranged on the top of the box body 10, and then there is no need to set other supporting components for support, which facilitates the installation of the heat exchanger 53. The heat exchanger 53 fits with the top surface of the box body 10, so that the heat of the box body 10 can be absorbed, and the heat is fully utilized.

[0031] In one embodiment, Figure 1 and 2 As shown, the air supply module 40 includes an air intake pipe 41 and an air supply pipe 42, and the heat exchange module 50 is also provided with an air inlet 54 and an air outlet 55. One end of the air intake pipe 41 is connected to the atmosphere and extends toward the ground, and the other end of the air intake pipe 41 is connected to the air intake port 54. Both ends of the air supply pipe 42 are connected to the air outlet 55 and each fuel cell, respectively. Specifically, during the process of air supplying each fuel cell stack, the air enters the air cavity 52 through the air intake pipe 41, and after heat exchange with the high-temperature exhaust gas in the exhaust cavity 51 in the air cavity 52, the air enters each fuel cell stack through the air supply pipe 42. The air intake pipe 41 can facilitate the air to enter the heat exchange module 50, and prevent the air after heat exchange from diffusing outward from the air intake port 54, causing heat waste. Moreover, the end of the air intake pipe 41 connected to the atmosphere extends toward the ground, which can effectively prevent rainwater from entering the air cavity 52 through the air intake pipe 41.

[0032] In this embodiment, Figure 1 and 2 As shown, a plurality of tail gas pipes 60, air intake pipes 41 and air supply pipes 42 are provided, one end of each tail gas pipe 60 is connected to the tail gas outlet of each fuel cell, the other end of each tail gas pipe 60 is connected to the tail gas inlet 56 of each heat exchanger 53, each air intake pipe 41 is connected to the air inlet 54 of each heat exchanger 53, one end of each air supply pipe 42 is connected to the air outlet 55 of each heat exchanger 53, and the other end of each air supply pipe 42 is connected to the cathode air inlet of each fuel cell.

[0033] In one embodiment, Figure 1 and 2As shown, the air supply module 40 further includes an air intake fan 43, which is connected to each air supply pipe 42. Specifically, through the suction effect of the air intake fan 43, air can be sucked into the air cavity 52 through the air intake pipe 41, and then the air in the air cavity 52 is sucked into each fuel cell. The air intake fan 43 can provide a driving force for the supply of air to each fuel cell. At the same time, the air temperature can be controlled by controlling the air intake flow rate, thereby facilitating the control of the power generation power of each fuel cell and improving the stability of the power generation system.

[0034] In this embodiment, Figure 2 As shown, a plurality of air intake fans 43 are provided, and each air intake fan 43 is installed on each air supply pipe 42 respectively.

[0035] In one embodiment, Figure 3 As shown, a plurality of air blocking plates 57 are arranged inside the heat exchange module 50, and the air cavity 52 is located on the peripheral side of the tail gas cavity 51 and forms an air flow channel 521 extending from the air inlet to the air outlet, and each air blocking plate 57 is fixed to the side wall of the air flow channel 521 and extends in the direction of the air inlet 54. Specifically, the air cavity 52 can better exchange heat with the tail gas in the tail gas cavity 51 by being arranged on the peripheral side of the tail gas cavity 51, and the air flow channel 521 can allow the air to flow in the air cavity 52 in an orderly manner from the air inlet to the air outlet, and the air blocking plate 57 can provide resistance to the flow of air in the direction of the air outlet by extending in the direction of the air inlet 54, thereby reducing the air flow rate, so that the air can fully exchange heat with the tail gas in the tail gas cavity 51, and fully utilize the heat of the tail gas.

[0036] In one embodiment, Figure 3 As shown, adjacent air blocking plates 57 are staggered, and each air blocking plate 57 is provided with a plurality of air holes 571 arranged at intervals. Specifically, through the staggered arrangement of the air blocking plates 57 and the arrangement of the air holes 571, the air in the air flow channel 521 can form a turbulent flow, so that the temperature of the air is kept uniform, and the power generation efficiency of each fuel cell is improved.

[0037] In the present embodiment, since the main component of the exhaust gas is water vapor, a large amount of condensed water is generated due to the temperature reduction during the exhaust gas heat exchange process. The present embodiment can significantly reduce the exhaust gas temperature while improving the exhaust gas-air heat exchange efficiency through the arrangement of the air flow channel 521 and the air baffle plate 57, thereby liquefying the water vapor in the exhaust gas to generate a large amount of condensed water, which is convenient for centralized recovery and avoids the waste of water vapor due to the exhaust gas discharge.

[0038] In one embodiment, Figures 1 to 3As shown, the power generation system further includes a recovery module 70, and the heat exchange module 50 is further provided with an exhaust outlet 58, the exhaust outlet 58 is communicated with the exhaust chamber 51, and the recovery module 70 is connected to the exhaust outlet 58, for discharging condensed water discharged from the exhaust outlet 58. Specifically, the exhaust gas in the exhaust chamber 51 and the condensed water generated in the exhaust gas liquefaction process will be discharged from the exhaust outlet 58 into the recovery module 70, and will be uniformly discharged by the recovery module 70, so as to realize the centralized treatment of the condensed water, and then facilitate the subsequent recycling of the condensed water, so as to provide additional water sources for water-scarce power facilities such as ships and pirate power stations.

[0039] In one embodiment, Figure 3 As shown, the side wall of the tail gas cavity 51 is provided with a receiving groove 511, which extends along the circumference of the tail gas cavity 51 and is located at the lower side of the tail gas outlet 58. The condensed water in the tail gas cavity 51 will flow down from the side wall of the tail gas cavity 51 and enter the receiving groove 511, and will be received by the receiving groove 511. When the condensed water reaches a certain height, it will flow out from the tail gas outlet 58 and enter the recovery module 70. The receiving groove 511 can prevent the condensed water from flowing back from the tail gas pipe 60 while facilitating the discharge of the condensed water, thereby improving the recovery rate of the condensed water.

[0040] In one embodiment, Figure 3 As shown, an arc-shaped guide surface 512 is provided at the top of the tail gas cavity 51, and the arc-shaped guide surface 512 extends to the side wall of the tail gas cavity 51. The condensed water condensed on the top wall of the tail gas cavity 51 can be guided to the side wall of the tail gas cavity 51 through the arc-shaped guide surface 512, and finally enter the receiving groove 511, thereby preventing the condensed water on the top of the tail gas cavity 51 from dripping into the tail gas pipe 60, thereby improving the recovery rate of the condensed water.

[0041] In one embodiment, Figure 1 and 2 As shown, the recovery module 70 includes a recovery main pipe 71, a plurality of water outlet branches 72 and a plurality of exhaust pipes 73. One end of each water outlet branch pipe 72 is connected to the exhaust outlet 58, and the other end of each water outlet branch pipe 72 is connected to the recovery main pipe 71. Each exhaust pipe 73 is connected to the recovery main pipe 71. Specifically, the condensed water and unliquefied exhaust gas in the exhaust cavity 51 will enter the recovery main pipe 71 from each water outlet branch pipe 72. The exhaust gas can be further liquefied at the recovery main pipe 71, thereby reducing the amount of water vapor in the exhaust gas and improving the recovery rate of the condensed water. The remaining unliquefied exhaust gas will be discharged through each exhaust pipe 73.

[0042] In one embodiment, Figure 1 and 2 As shown, the tail gas discharge end of the exhaust pipe 73 extends toward the ground. Specifically, this arrangement can prevent rainwater from entering the exhaust pipe 73 from the tail gas discharge end of the exhaust pipe 73.

[0043] In some embodiments, Figure 1 and 2 As shown, the recovery module 70 further includes a plurality of recovery branches 74, one end of each recovery branch 74 is connected to the recovery main pipe 71, and the other end of each recovery branch 74 extends to the insulation chamber 11. Specifically, the condensed water of the recovery main pipe 71 will be discharged from each recovery branch 74 into the insulation chamber 11, and collected by the insulation chamber 11, so that there is no need to set up a separate water storage device to store water, which is convenient for the subsequent use of the condensed water. By storing the condensed water in the insulation chamber, an additional water source is provided for water-scarce power facilities such as ships and pirate power stations.

[0044] In this embodiment, the box body 10 is provided with an overflow pipe (not marked in the figure), and the overflow pipe can be used for discharging condensed water in the box body 10.

[0045] In this embodiment, Figure 1 and 2 As shown, the power generation system further includes a temperature monitor and an exhaust fan 80. The temperature monitor is disposed in the heat preservation chamber 11 to detect the temperature of the heat preservation chamber 11. The exhaust fan 80 is installed in the box body 10 to exhaust the gas in the heat preservation chamber 11. Specifically, when the temperature of the heat preservation chamber 11 is too high, the exhaust fan 80 is started to exhaust the gas in the heat preservation chamber 11, thereby ensuring the safety of the operation of the power generation module 20.

[0046] The specific working principle of the solid oxide fuel cell power generation system provided by the embodiment of the present invention is as follows: when the power generation system is performing power generation operation, the fuel is supplied to each fuel cell by the fuel supply module 30, the air intake fan 43 is started, and the air is sucked into the air cavity 52 of each heat exchanger 53 through the air intake pipe 41, and then the air in the air cavity 52 is sucked into each fuel cell, so that each fuel cell generates electricity, and the exhaust gas generated by each fuel cell will enter the exhaust cavity 51 of each heat exchanger 53 from each exhaust pipe 60, and exchange heat with the air in the air cavity 52, so as to realize the utilization of the exhaust gas heat and improve the power generation efficiency of the fuel cell, and part of the exhaust gas is liquefied to form condensed water, and the formed condensed water and exhaust gas will enter the recovery main pipe 71 through each water outlet branch pipe 72, and the exhaust gas will be discharged through each exhaust pipe 73, and the condensed water will be discharged from each recovery branch pipe 74 into the insulation cavity 11, and then overflow from the overflow pipe to realize the recycling of the condensed water.

[0047] The solid oxide fuel cell power generation system of this embodiment is mainly used in facilities such as ships and island power stations with large power consumption and water resources, and can provide high-power electricity and supplement water sources for ships, island power stations and other facilities. The solid oxide fuel cell power generation system of this embodiment is provided with a box 10 to insulate the power generation system, and at the same time provides an installation for the heat exchange module 50. Through the centralized heat exchange of the heat exchange module 50 at the top of the box, while fully utilizing the heat of the exhaust gas, the liquefied condensed water in the exhaust gas can be collected and recovered to the box 10 through the recovery module 70, so as to realize the recycling of water vapor in the exhaust gas. Then, by setting the power generation system in facilities such as ships and island power stations, it can meet the power demand of high-power power facilities such as ships and island power stations, and provide additional water sources for facilities such as ships and island power stations, solving the water use problem of facilities such as ships and island power stations.

[0048] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A solid oxide fuel cell power generation system, characterized in that: include: The box body is provided with a heat preservation chamber; A power generation module, comprising a plurality of fuel cells, each of which is arranged in parallel and disposed inside the heat preservation chamber; A fuel supply module, which is disposed in the heat preservation chamber and connected to each of the fuel cells, and is used to supply fuel to each of the fuel cells; and An air supply module, connected to each of the fuel cells, for supplying air to each of the fuel cells; The heat exchange module is provided with an exhaust cavity and an air cavity, and the air supply module is connected with the air cavity. The tail gas pipe has two ends which are respectively connected to the tail gas cavity and the tail gas outlet of each fuel cell.

2. The solid oxide fuel cell power generation system according to claim 1, characterized in that: The heat exchange module includes a plurality of heat exchangers, each of which is arranged at intervals on the top of the box body and fits with the top surface of the box body, and the tail gas cavity and the air cavity are arranged in each of the heat exchangers.

3. The solid oxide fuel cell power generation system according to claim 1, characterized in that: The power generation system also includes a recovery module, and the heat exchange module is also provided with an exhaust gas outlet, the exhaust gas outlet is communicated with the exhaust cavity, and the recovery module is connected to the exhaust gas outlet for discharging condensed water discharged from the exhaust gas outlet.

4. The solid oxide fuel cell power generation system according to claim 3, characterized in that: The recovery module includes a recovery main pipe, a plurality of water outlet branches and a plurality of exhaust pipes, one end of each of the water outlet branches is connected to the exhaust gas outlet, the other end of each of the water outlet branches is connected to the recovery main pipe, and each of the exhaust pipes is connected to the recovery main pipe.

5. The solid oxide fuel cell power generation system according to claim 4, characterized in that: The recovery module further comprises a plurality of recovery branch pipes, one end of each of the recovery branch pipes is connected to the recovery main pipe, and the other end of each of the recovery branch pipes extends to the heat preservation chamber.

6. The solid oxide fuel cell power generation system according to claim 1, characterized in that: The air supply module includes an air intake pipe and an air supply pipe, and the heat exchange module is also provided with an air inlet and an air outlet. One end of the air intake pipe is connected to the atmosphere and extends toward the ground, and the other end of the air intake pipe is connected to the air inlet. Both ends of the air supply pipe are respectively connected to the air outlet and each of the fuel cells.

7. The solid oxide fuel cell power generation system according to claim 6, characterized in that: The air supply module further comprises an air intake fan, and the air intake fan is connected to each of the air supply pipes.

8. The solid oxide fuel cell power generation system according to claim 6, characterized in that: A plurality of air baffles are arranged inside the heat exchange module, the air cavity is located on the peripheral side of the tail gas cavity and forms an air flow channel extending from the air inlet to the air outlet, and each of the air baffles is fixed to the side wall of the air flow channel and extends toward the air inlet.

9. The solid oxide fuel cell power generation system according to claim 8, characterized in that: The adjacent air blocking plates are arranged in a staggered manner, and each of the air blocking plates is provided with a plurality of air holes arranged at intervals.

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