Fuel cell system and ship

Abstract

The utility model discloses a fuel cell system and ship, the fuel cell system includes fuel supply part, intercooler, fuel cell and secondary gasification part, fuel supply part has first supply runner and second supply runner, fuel cell has first feed inlet and second feed inlet, the second supply runner is communicated with intercooler, and the secondary gasification part has second feed inlet and second feed inlet. The intercooler is respectively communicated with one of the second feeding hole and the secondary gasification part, the secondary gasification part is communicated with the second feeding hole, the fuel cell is also provided with a cooling liquid outlet and a cooling liquid inlet, the cooling liquid outlet is communicated with the secondary gasification part, and the secondary gasification part is communicated with the cooling liquid outlet and the cooling liquid inlet. The cooling liquid outlet is communicated with the secondary gasification part, so that heat generated by the fuel cell can be utilized to heat the secondary gasification part, the energy loss of the fuel cell system is reduced, and the energy utilization rate of the fuel cell system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a fuel cell system and a ship with the fuel cell system. Background Art

[0002] Hydrogen energy is recognized as a clean energy source in the world. With the introduction of the country's 3060 carbon peak and carbon neutrality development plan, hydrogen energy has risen to the status of a strategic energy commodity.

[0003] In the field of fuel cells, hydrogen and air are usually used as fuel cells. Hydrogen and air are introduced into the fuel cell for electrochemical reactions to generate electricity. During the operation of the fuel cell, about 40%-50% of heat energy is generated, which causes the temperature of the fuel cell to rise. When the temperature of the fuel cell is too high, the electrolyte membrane in the fuel cell is easily dehydrated, shrunk, or even ruptured, causing irreversible damage, reducing the stability and durability of the battery. Therefore, a cooling system is provided for the fuel cell to cool the fuel cell.

[0004] In addition, the temperature requirement for hydrogen when the fuel cell is working is 0-40 degrees Celsius, while the temperature of liquid hydrogen in the liquid hydrogen storage bottle is around -253 degrees Celsius. The temperature difference in the middle requires the use of a vaporizer to heat the liquid hydrogen into gaseous hydrogen so that the temperature of the hydrogen reaches the required temperature of the fuel cell.

[0005] In the related art, in the existing fuel cell system, a device for heating liquid hydrogen is provided to make the temperature of hydrogen reach the required temperature of the fuel cell, which leads to large energy loss of the existing fuel cell system and low energy utilization rate of the existing fuel cell system. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a fuel cell system that reduces energy loss and realizes efficient conversion and utilization of energy in the fuel cell system.

[0007] The fuel cell system according to the utility model comprises:

[0008] A fuel supply portion, the fuel supply portion having a first supply flow channel and a second supply flow channel;

[0009] Intercooler;

[0010] A fuel cell, the fuel cell having a first feed inlet and a second feed inlet, and an intercooler communicating with the first supply flow channel and the first feed inlet;

[0011] The second gasification section, the second supply flow channel is connected to the intercooler, the intercooler is connected to the second feed port and the secondary gasification section respectively, and the secondary gasification section is connected to the second feed port;

[0012] The fuel cell also has a coolant outlet and a coolant inlet. The coolant outlet is communicated with the secondary gasification part, and the secondary gasification part conducts the coolant outlet and the coolant inlet.

[0013] According to the fuel cell system of the utility model, the coolant outlet is selectively connected to the secondary gasification part, and the heat generated by the fuel cell can be used to heat the secondary gasification part, thereby reducing the energy loss of the fuel cell system and improving the energy utilization rate of the fuel cell system.

[0014] In some examples of the present invention, the secondary gasification section includes a first subsection and a second subsection, one end of the first subsection is connected to the intercooler, and the other end of the first subsection is connected to the second feed port or the second subsection;

[0015] The first sub-section and the second sub-section are sequentially connected between the second supply channel and the second feed port;

[0016] The coolant outlet is connected to the second sub-section, and the second sub-section conducts the coolant outlet and the coolant inlet. In some examples of the utility model, the fuel cell system also includes: a heat sink, the heat sink has a heat sink inlet and a heat sink outlet, the heat sink inlet is connected to the coolant outlet, and the heat sink outlet is connected to the coolant inlet.

[0017] In some examples of the present invention, the fuel cell further has an exhaust gas outlet, which is connected to the first subsection or the environment. The first subsection connects the exhaust gas outlet and the environment so that the exhaust gas generated by the fuel cell selectively flows through the first subsection.

[0018] In some examples of the present invention, the fuel cell system further includes: a plurality of gasifiers, each gasifier having a first medium pipeline and a second medium pipeline;

[0019] The plurality of gasifiers include: a first gasifier, a second gasifier and a plurality of third gasifiers, the first gasifier is an intercooler, the second gasifier is a first sub-unit, and the plurality of third gasifiers constitute a second sub-unit. In some examples of the present invention, the first medium pipeline of the first gasifier is connected to the first supply flow channel and the first feed inlet;

[0020] The second medium pipeline of the first gasifier is connected between the second supply flow channel and the second feed inlet, or

[0021] The second medium pipeline of the first gasifier is connected between the second supply flow channel and the secondary gasification part.

[0022] In some examples of the present invention, the first medium pipeline of the second gasifier is connected between the exhaust gas outlet and the environment, and the second medium pipeline of the second gasifier is selectively connected to the second feed port or the second sub-section. In some examples of the present invention, multiple second medium pipelines of multiple third gasifiers are sequentially connected in series, and the second medium pipelines of two adjacent third gasifiers are connected, the second medium pipeline of the third gasifier at one end is connected to the second medium pipeline of the second gasifier, and the second medium pipeline of the third gasifier at the other end is connected to the second feed port;

[0023] In two adjacent third gasifiers, the second medium pipeline of the third gasifier located on the upstream side is connected to the second medium pipeline or the second feed port of the third gasifier located on the downstream side. In some examples of the utility model, a phase change material is provided in the gasifier, and the phase change material is used to store heat and transfer heat between the first medium pipeline and the second medium pipeline.

[0024] The ship according to the utility model comprises the above-mentioned fuel cell system.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 is a structural schematic diagram of a fuel cell system according to an embodiment of the utility model;

[0028] Figure 2 is a front view of a gasifier according to an embodiment of the utility model;

[0029] Figure 3 is a cross-sectional view of a gasifier according to an embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the coordination of the first medium pipeline, the second medium pipeline, the heat dissipation structure and the second shell according to an embodiment of the utility model;

[0031] Figure 5 It is a schematic diagram of the coordination of the first medium pipeline, the second medium pipeline, the first partition plate, the second partition plate and the heat dissipation structure according to an embodiment of the utility model.

[0032] Reference numerals:

[0033] Fuel cell system 1000;

[0034] First supply flow channel 21; compressor 211;

[0035] A second supply flow channel 22; a hydrogen storage element 222;

[0036] Intercooler 23;

[0037] Fuel cell 24; first feed inlet 241; second feed inlet 242; exhaust gas outlet 243; coolant outlet 244; coolant inlet 245; second fuel recovery outlet 246;

[0038] Secondary gasification section 25; first subsection 251; second subsection 252;

[0039] Gasifier 100; gasifier body 1; gasification space 10; first space 10a; second space 10b; third space 10c; subspace 10d;

[0040] First housing 11; first interface 110; second housing 12; third housing 13; second interface 130;

[0041] First medium pipeline 2; second medium pipeline 3; straight pipe section 310; curved pipe section 320;

[0042] Heat dissipation structure 40;

[0043] A first partition 51; a second partition 52;

[0044] A first gasifier 101; a second gasifier 102;

[0045] The third gasifier 103; the third gasifier one 103a; the third gasifier two 103b; the third gasifier three 103c;

[0046] A first three-way valve 261; a second three-way valve 262; a third three-way valve 263; a fourth three-way valve 264; a fifth three-way valve 265; and a sixth three-way valve 266;

[0047] Humidifier 27;

[0048] Muffler 28; muffler inlet 281; muffler outlet 282;

[0049] Heat dissipation element 29; heat dissipation inlet 291; heat dissipation outlet 292;

[0050] Ion filter 30; cooling circulation pump 31; gas-liquid separator 32; electric heating device 33; temperature monitoring device 34; fuel circulation pump 35. DETAILED DESCRIPTION

[0051] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0052] In the field of fuel cell systems, hydrogen and air are usually used as fuel for fuel cells. The temperature requirement for hydrogen when the fuel cell is working is 0-40 degrees Celsius, while the temperature of liquid hydrogen in liquid hydrogen storage bottles is around -253 degrees Celsius. The temperature difference in the middle requires the use of a vaporizer to heat the liquid hydrogen into gaseous hydrogen so that the temperature of the hydrogen reaches the required temperature of the fuel cell. When hydrogen that does not meet the temperature standard enters the fuel cell system, it cannot fully participate in the reaction, causing waste and reducing the overall power generation efficiency of the fuel cell.

[0053] Based on this, the utility model provides a fuel cell system 1000 that can reduce the energy loss of the fuel cell system and improve the energy utilization rate.

[0054] Reference below Figure 1 A fuel cell system 1000 according to an embodiment of the present invention is described. The fuel cell system 1000 can be applied to a ship, but the present invention is not limited thereto. The fuel cell system 1000 can also be applied to a vehicle or an aircraft, etc. When the fuel cell system 1000 is applied to a vehicle, the vehicle is constructed as a pure electric or hybrid vehicle. When the fuel cell system 1000 is applied to an aircraft, the aircraft is constructed as a pure electric or hybrid aircraft. This application is described by taking the application of the fuel cell system 1000 on a ship as an example.

[0055] like Figure 1 As shown, the fuel cell system 1000 according to the embodiment of the present utility model includes a fuel supply unit, an intercooler 23, a fuel cell 24 and a secondary gasification unit 25. The fuel supply unit has a first supply flow channel 21 and a second supply flow channel 22.

[0056] The fuel cell 24 has a first feed port 241 and a second feed port 242. The intercooler 23 connects the first supply channel 21 and the first feed port 241. The second supply channel 22 connects the intercooler 23. The intercooler 23 connects the second feed port 242 and the secondary gasification section 25 respectively. The secondary gasification section 25 is also connected to the second feed port 242. The fuel cell 24 also has a coolant outlet 244 and a coolant inlet 245. The coolant outlet 244 is connected to the secondary gasification section 25. The secondary gasification section 25 conducts the coolant outlet 244 and the coolant inlet 245.

[0057] The coolant outlet 244 is provided to be connected to the secondary gasification section 25, so that the heat generated by the fuel cell 24 can be transferred to the secondary gasification section 25 through the coolant, so that the internal temperature of the secondary gasification section 25 is increased, thereby heating the hydrogen in the secondary gasification section 25 to ensure that the temperature of the hydrogen reaches the standard before flowing into the fuel cell 24 for electrochemical reaction.

[0058] like Figure 1 As shown, in some embodiments, the fuel supply unit can supply air and hydrogen to the fuel cell 24, the air is supplied to the fuel cell 24 through the first supply channel 21, and the hydrogen is supplied to the fuel cell 24 through the second supply channel 22, so that the fuel cell 24 undergoes an electrochemical reaction to generate electrical energy.

[0059] like Figure 1 As shown, in some embodiments, the fuel supply unit may include a compressor 211, which is disposed in the first supply flow channel 21. The compressor 211 is used to compress the air flowing through the first supply flow channel 21. Since the air has a certain temperature after being compressed by the compressor 211, the air flowing into the primary gasification unit 23 is in a high-temperature state.

[0060] In addition, the fuel supply unit may also include a hydrogen storage element 222, which is used to store hydrogen. In some embodiments, in order to facilitate the storage of hydrogen, the hydrogen is subjected to low-temperature treatment to form liquid hydrogen for storage. Since the temperature of the hydrogen flowing into the fuel cell 24 to participate in the electrochemical reaction has certain requirements, before the liquid hydrogen flows into the fuel cell 24, the low-temperature liquid hydrogen needs to be introduced into the intercooler 23, and the high-temperature air that has been compressed is also introduced into the intercooler 23. When the air and liquid hydrogen flow through the intercooler 23, the heat of the air is used to heat the liquid hydrogen, so that at least part of the liquid hydrogen is heated and vaporized to form hydrogen.

[0061] After passing through the intercooler 23, the air flows into the fuel cell 24 to participate in the electrochemical reaction. When the temperature of the hydrogen in the intercooler 23 reaches the required temperature of the fuel cell 24, the hydrogen in the intercooler 23 flows into the fuel cell 24 to participate in the electrochemical reaction. When the temperature of the hydrogen in the intercooler 23 does not reach the required temperature of the fuel cell 24, the hydrogen in the intercooler 23 flows to the secondary gasification section 25 to be heated again, so that the temperature of the hydrogen reaches the required temperature of the fuel cell 24 and then flows into the fuel cell 24 to participate in the electrochemical reaction, thereby ensuring the working stability of the fuel cell 24.

[0062] A certain amount of heat is generated during the operation of the fuel cell 24. The coolant flowing through the fuel cell 24 fully absorbs the heat generated by the fuel cell 24 and is discharged from the fuel cell 24 through the coolant outlet 244. When the coolant outlet 244 is connected to the secondary gasification part 25, the coolant carrying heat flows through the secondary gasification part 25, thereby transferring the heat to the secondary gasification part 25, so that the secondary gasification part 25 has a certain amount of heat, and this part of the heat can be used to heat the hydrogen flowing through the secondary gasification part 25, so that the hydrogen is further heated up, so that the temperature of the hydrogen reaches the required temperature of the fuel cell 24, thereby ensuring that the hydrogen flowing into the fuel cell 24 to participate in the electrochemical reaction can reach the required temperature of the fuel cell 24. In addition, since the heat generated during the operation of the fuel cell 24 is used to heat the hydrogen, there is no need to set up a device for reheating the hydrogen in the battery system 1000, which can not only reduce the energy loss of the fuel cell system 1000, but also improve the energy utilization rate of the fuel cell system 1000.

[0063] In addition, when the hydrogen flows through the secondary gasification section 25, when the coolant outlet 244 is connected to the secondary gasification section 25, the secondary gasification section 25 connects the coolant outlet 244 and the coolant inlet 245 so that the coolant can circulate between the fuel cell 24 and the secondary gasification section 25, which not only transfers the heat generated by the fuel cell 24 to the secondary gasification section 25, but also reduces the temperature of the fuel cell 24, so that the fuel cell 24 is maintained in a suitable operating temperature range, thereby ensuring the working performance of the fuel cell 24.

[0064] Therefore, according to the fuel cell system 1000 of the embodiment of the present invention, not only the energy loss of the fuel cell system 1000 can be reduced, but also the energy utilization rate of the fuel cell system 1000 can be improved.

[0065] In some embodiments of the present invention, Figure 1 As shown, the secondary gasification section 25 includes a first subsection 251 and a second subsection 252. One end of the first subsection 251 is connected to the intercooler 23, and the other end of the first subsection 251 is connected to the second feed port 242 or the second subsection 252. When the other end of the first subsection 251 is connected to the second subsection 252, the first subsection 251 and the second subsection 252 are connected in sequence between the second supply channel 22 and the second feed port 242. The coolant outlet 244 is selectively connected to the second subsection 252. When the coolant outlet 244 is connected to the second subsection 252, the second subsection 252 conducts the coolant outlet 244 and the coolant inlet 245 to use the heat generated by the fuel cell 24 to heat the hydrogen flowing through the second subsection 252, so that the temperature of the hydrogen reaches the required temperature of the fuel cell 24 and then flows into the fuel cell 24.

[0066] In some embodiments, Figure 1 As shown, when the temperature of the hydrogen in the intercooler 23 does not reach the required temperature of the fuel cell 24, the hydrogen in the intercooler 23 flows to the first subsection 251, and the hydrogen can be further heated in the process of flowing through the first subsection 251. It should be supplemented that there are two situations in the process of hydrogen flowing through the first subsection 251. The first subsection 251 heats the hydrogen flowing through the first subsection 251, or the first subsection 251 does not heat the hydrogen flowing through the first subsection 251. When the temperature of the hydrogen in the first subsection 251 reaches the required temperature of the fuel cell 24, the hydrogen flowing through the first subsection 251 flows into the second feed port 242, so that the hydrogen flows into the fuel cell 24 to participate in the electrochemical reaction. When the temperature of the hydrogen in the first subsection 251 does not reach the required temperature of the fuel cell 24, the hydrogen flowing through the first subsection 251 flows into the second subsection 252, so that the hydrogen flowing into the second subsection 252 is further heated, so that the hydrogen reaches the required temperature of the fuel cell 24 and flows into the fuel cell 24.

[0067] In some embodiments, when the coolant outlet 244 is connected to the second sub-section 252, the second sub-section 252 conducts the coolant outlet 244 and the coolant inlet 245, thereby transferring the heat generated during the operation of the fuel cell 24 to the second sub-section 252, so that the second sub-section 252 can heat up the hydrogen flowing through the second sub-section 252 again, so that the hydrogen flowing through the second sub-section 252 reaches the required temperature of the fuel cell 24.

[0068] In some embodiments of the present invention, Figure 1 As shown, the battery system 1000 may also include: a heat sink 29, the heat sink 29 has a heat sink inlet 291 and a heat sink outlet 292, the heat sink inlet 291 is connected to the coolant outlet 292, and the heat sink outlet 292 is connected to the coolant inlet 245. The coolant flowing through the fuel cell 24 can be dissipated by the heat sink 29 to reduce the temperature of the coolant, so that the coolant can flow into the fuel cell 24 again for cooling the fuel cell 24, so that the fuel cell 24 is maintained in a suitable operating temperature range to ensure the working performance of the fuel cell 24.

[0069] In some embodiments, when the hydrogen does not need to be further heated by the second sub-section 252, the heat dissipation inlet 291 is connected to the coolant outlet 292 so that the coolant flows through the heat sink 29. The coolant releases heat in the process of flowing through the heat sink 29, thereby reducing the temperature of the heat sink 29, so that the coolant flows into the fuel cell 24 again for cooling the fuel cell 24. When the hydrogen needs to be further heated by the second sub-section 252, the heat dissipation inlet 291 is not connected to the coolant outlet 292, and the coolant outlet 292 is connected to the second sub-section 252 so that the second sub-section 252 conducts the coolant outlet 244 and the coolant inlet 245, so that the heat generated during the operation of the fuel cell 24 is transferred to the second sub-section 252 through the coolant, so that the hydrogen flowing through the second sub-section 252 is heated again, so that the hydrogen flowing through the second sub-section 252 reaches the required temperature of the fuel cell 24, and at the same time reduces the temperature of the coolant, so that the coolant flows into the fuel cell 24 again for cooling the fuel cell 24.

[0070] In some embodiments, during the operation of the fuel cell system 1000, when the heat of the coolant needs to be stored in the second sub-section 252, the second sub-section 252 can also connect the heat dissipation inlet 291 and the coolant outlet 292 to store the heat in the second sub-section 252 when the coolant flows through the second sub-section 252.

[0071] In some embodiments, when the fuel cell system 1000 is used in a ship, the heat sink 29 can be set on the hull. When the ship is sailing in the water, the heat sink 29 is suitable for being immersed in the water. When the coolant flows through the heat sink 29, the heat of the coolant is released into the water through the heat sink 29 to reduce the temperature of the coolant.

[0072] In some embodiments of the present invention, Figure 1 As shown, the fuel cell 24 also has an exhaust gas outlet 243, and the exhaust gas outlet 243 is connected to the first sub-section 251 or the environment. When the exhaust gas outlet 243 is connected to the first sub-section 251, the first sub-section 251 conducts the exhaust gas outlet 243 and the environment, so that the exhaust gas generated by the fuel cell 24 selectively flows through the first sub-section 251. When the first sub-section 251 conducts the exhaust gas outlet 243 and the environment, the exhaust gas generated by the fuel cell 24 flows through the first sub-section 251. Since the exhaust gas has a higher temperature, the heat of the exhaust gas can be used to heat the hydrogen flowing through the first sub-section 251, so as to achieve the effect of heating the hydrogen again.

[0073] In some embodiments, Figure 1As shown, when the hydrogen needs to be further heated after passing through the first subsection 251, the exhaust gas outlet 243 is connected to the first subsection 251, so that the first subsection 251 conducts the exhaust gas outlet 243 and the environment, and the exhaust gas is discharged into the atmosphere after passing through the first subsection 251. In the process of the exhaust gas flowing through the first subsection 251, the hydrogen flowing through the first subsection 251 is heated to achieve the effect of heating the hydrogen again when flowing through the first subsection 251. At the same time, by using the heat of the exhaust gas to heat the hydrogen, not only the energy loss of the fuel cell system 1000 can be reduced, but also the energy utilization rate of the fuel cell system 1000 can be improved.

[0074] In some embodiments, when the heat of the exhaust gas needs to be stored in the first subsection 251 during operation of the fuel cell system 1000, the first subsection 251 can also connect the exhaust gas outlet 243 and the environment to store the heat in the first subsection 251 when the exhaust gas flows through the first subsection 251.

[0075] In some embodiments, when the fuel cell system 1000 does not need to apply the heat of the exhaust gas to the first subsection 251 , the exhaust gas outlet 243 can be directly connected to the environment, so that the exhaust gas generated by the fuel cell 24 is directly discharged into the environment.

[0076] In some embodiments, the fuel cell system 1000 may further include a muffler 28 having a muffler inlet 281 and a muffler outlet 282. The muffler inlet 281 is connected to the exhaust gas outlet 243 and the first sub-section 251, and the muffler outlet 282 is connected to the environment so that the exhaust gas can be muffled during the process of being discharged into the environment, thereby reducing the noise generated by the fuel cell system 1000.

[0077] In some embodiments of the present invention, Figure 1 As shown, the fuel cell system 1000 also includes: a plurality of gasifiers 100, each gasifier 100 has a first medium pipeline 2 and a second medium pipeline 3, the plurality of gasifiers include a first gasifier 101, a second gasifier 102 and a plurality of third gasifiers 103, the first gasifier 101 is an intercooler, the second gasifier 102 is a first sub-section 251, and the plurality of third gasifiers 103 constitute a second sub-section 252.

[0078] In some embodiments, Figure 3 As shown, the first medium pipeline 2 is used to flow through the first medium, and the second medium pipeline 3 is used to flow through the second medium. In the process that the first medium and the second medium flow through the first medium pipeline 2 and the second medium pipeline 3 respectively, heat exchange continues between the first medium located in the first medium pipeline 2 and the second medium located in the second medium pipeline 3 to achieve the effect of heat exchange.

[0079] In some embodiments, in combination Figure 1and Figure 3 As shown, in the first gasifier 101, the first medium pipeline 2 is used for air to flow through, and the second medium pipeline 3 is used for liquid hydrogen to flow through. Since the air flowing into the first medium pipeline 2 has been compressed to a high-temperature state, and the liquid hydrogen flowing into the second medium pipeline 3 is in a low-temperature state, during the process in which the air and liquid hydrogen flow through the first medium pipeline 2 and the second medium pipeline 3 respectively, the liquid hydrogen can absorb the heat of the air to form hydrogen.

[0080] In some embodiments, in combination Figure 1 and Figure 3 As shown, in the second gasifier 102, the first medium pipeline 2 is used for exhaust gas to flow through, and the second medium pipeline 3 is used for hydrogen to flow through. Since the exhaust gas flowing into the first medium pipeline 2 is in a high temperature state compared to the hydrogen flowing through the second medium pipeline 3, during the process in which the air and hydrogen flow through the first medium pipeline 2 and the second medium pipeline 3 respectively, the hydrogen can absorb the heat of the air to achieve the effect of heating up the hydrogen again during the process of flowing through the first sub-section 251.

[0081] In some embodiments, in combination Figure 1 and Figure 3 As shown, in the third gasifier 103, the first medium pipeline 2 is used for flowing coolant, and the second medium pipeline 3 is used for flowing hydrogen. Since the coolant flowing into the first medium pipeline 2 is in a high temperature state compared to the hydrogen flowing through the second medium pipeline 3, the hydrogen can absorb the heat of the coolant in the process of the coolant and the hydrogen flowing through the first medium pipeline 2 and the second medium pipeline 3 respectively, so as to achieve the effect of heating the hydrogen again in the process of flowing through the second sub-section 252.

[0082] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the first medium pipeline 2 of the first gasifier 101 is connected to the first supply channel 21 and the first feed port 241, or the second medium pipeline 3 of the first gasifier 101 is connected between the second supply channel 22 and the second feed port 242, or the second medium pipeline 3 of the first gasifier 101 is connected between the second supply channel 22 and the secondary gasification part 25, so that the hydrogen flowing through the first gasifier 101 reaches the required temperature of the fuel cell 24 and flows into the fuel cell 24 to participate in the electrochemical reaction.

[0083] In some embodiments, in combination Figure 1 and Figure 3As shown, the first medium pipeline 2 of the first vaporizer 101 is connected to the first supply channel 21. When the fuel cell system 1000 is in working state, air flows through the first medium pipeline 2 of the first vaporizer 101 along the first supply channel 21 and then flows into the first feed port 241, so that the air enters the fuel cell system 1000 to participate in the electrochemical reaction. In the process of the air flowing through the first medium pipeline 2 of the first vaporizer 101, the heat of the air is used to heat the liquid hydrogen flowing through the second medium pipeline 3 of the first vaporizer 101 to heat and heat up the liquid hydrogen, so that the liquid hydrogen is gasified to form hydrogen. When the temperature of the hydrogen reaches the required temperature of the fuel cell 24 When the temperature of the hydrogen does not reach the required temperature of the fuel cell 24, the second medium pipeline 3 of the first gasifier 101 connects the second supply channel 22 with the second feed port 242, so that the hydrogen can flow into the second sub-portion 252 to participate in the electrochemical reaction. When the temperature of the hydrogen does not reach the required temperature of the fuel cell 24, the second medium pipeline 3 of the first gasifier 101 connects the second supply channel 22 with the second sub-portion 252, so that the hydrogen can flow to the second sub-portion 252, so that the hydrogen can be heated again in the process of flowing through the second sub-portion 252, so that the hydrogen can flow into the fuel cell 24 to participate in the electrochemical reaction after the hydrogen reaches the required temperature of the fuel cell 24.

[0084] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the first medium pipeline 2 of the second gasifier 102 is connected between the exhaust gas outlet 243 and the environment, and the second medium pipeline 3 of the second gasifier 102 is selectively connected to the second feed port 242 or the second sub-section 252, so that the hydrogen flowing through the second gasifier 102 reaches the required temperature of the fuel cell 24 and flows into the fuel cell 24 to participate in the electrochemical reaction.

[0085] In some embodiments, in combination Figure 1 and Figure 3 As shown, when the heat of the exhaust gas is not needed, the exhaust gas outlet 243 can be directly connected to the environment so that the exhaust gas does not need to flow through the first medium pipeline 2 of the second gasifier 102. When the heat of the exhaust gas is needed, the first medium pipeline 2 of the second gasifier 102 is connected between the exhaust gas outlet 243 and the environment so that the exhaust gas needs to flow through the second gasifier 102 before being discharged into the environment through the exhaust gas outlet 243. In this way, the heat of the exhaust gas can be used to heat the hydrogen in the second medium pipeline 3 flowing through the second gasifier 102. The heat of the exhaust gas is absorbed by the hydrogen flowing through the second gasifier 102, so as to achieve the effect of heating the hydrogen again in the process of flowing through the second gasifier 102.

[0086] When the temperature of the hydrogen reaches the required temperature of the fuel cell 24 while flowing through the second gasifier 102, the second medium pipeline 3 of the second gasifier 102 is connected between the second medium pipeline 3 of the first gasifier 101 and the second feed port 242, so that the hydrogen can flow into the fuel cell 24 through the second feed port 242 to participate in the electrochemical reaction. When the temperature of the hydrogen does not reach the required temperature of the fuel cell 24, the second medium pipeline 3 of the second gasifier 102 is connected between the second medium pipeline 3 of the first gasifier 101 and the second sub-section 252, so that the hydrogen can flow to the second sub-section 252, so that the hydrogen can be heated again while flowing through the second sub-section 252, so that the hydrogen can flow into the fuel cell 24 to participate in the electrochemical reaction after reaching the required temperature of the fuel cell 24.

[0087] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, multiple second medium pipelines 3 of multiple third gasifiers 103 are connected in series in sequence, and the second medium pipelines 3 of two adjacent third gasifiers 103 are connected, the second medium pipeline 3 of the third gasifier 103 located at one end is connected with the second medium pipeline 3 of the second gasifier 102, and the second medium pipeline 3 of the third gasifier 103 located at the other end is connected with the second feed port 242, and in two adjacent third gasifiers 103, the second medium pipeline 3 of the third gasifier 103 located on the upstream side is connected with the second medium pipeline 3 or the second feed port 242 of the third gasifier 103 located on the downstream side.

[0088] In order to facilitate the explanation of the technical solution of the utility model, Figure 1 and Figure 3 As shown, in some embodiments of the present invention, the second sub-section 252 having three third gasifiers 103 is used as an example for description, wherein the three third gasifiers 103 include a third gasifier one 103a, a third gasifier two 103b, and a third gasifier three 103c. It should be noted that although the present invention is described by taking the second sub-section 252 having three third gasifiers 103 as an example, the present invention is not limited to this, and the second sub-section 252 may have one or other number of third gasifiers 103.

[0089] Combination Figure 1 and Figure 3 As shown, the third gasifier two 103b is connected to the third gasifier one 103a and the third gasifier three 103c, and the second medium pipeline 3 of the third gasifier two 103b is connected in series between the second medium pipeline 3 of the third gasifier one 103a and the second medium pipeline 3 of the third gasifier three 103c, and the second medium pipeline 3 of the third gasifier two 103b is selectively connected to the second medium pipeline 3 of the third gasifier one 103a and the second medium pipeline 3 of the third gasifier three 103c.

[0090] like Figure 1 As shown, the second medium pipe of the third gasifier 103a is selectively connected with the second medium pipe 3 of the second gasifier 102, so that the hydrogen in the second medium pipe 3 of the second gasifier 102 can selectively flow into the second medium pipe of the third gasifier 103a according to the situation, that is, the second medium pipe 3 of the third gasifier 103 located at one end is selectively connected with the second medium pipe 3 of the second gasifier 102, so as to achieve the effect of hydrogen selectively flowing from the first sub-section 251 into the second sub-section 252 for heating.

[0091] Since the second medium pipeline 3 of the third gasifier 103a is connected with the second medium pipeline 3 or the second feed port 242 of the third gasifier 2 103b, the hydrogen in the second medium pipeline 3 of the third gasifier 103a can selectively flow into the second medium pipeline 3 of the third gasifier 2 103b or the fuel cell 24 according to the situation.

[0092] The second medium pipeline 3 of the third gasifier 2 103b is connected to the second medium pipeline 3 of the third gasifier 2 103b or the second feed port 242, so that the hydrogen in the second medium pipeline 3 of the third gasifier 2 103b can selectively flow into the second medium pipeline 3 of the third gasifier 3 103c or the fuel cell 24 according to the situation.

[0093] The second medium pipeline 3 of the third gasifier 103c is connected to the second feed port 242, so that the hydrogen in the second medium pipeline 3 located in the third gasifier 103b flows into the fuel cell 24, that is, the second medium pipeline 3 of the third gasifier 103 located at the other end is connected to the second feed port 242.

[0094] In addition, when the second medium pipelines 3 of two adjacent third gasifiers 103 are connected, along the hydrogen flow direction, in the two adjacent third gasifiers 103, the second medium pipeline 3 of the third gasifier 103 located on the upstream side is connected with the second medium pipeline 3 or the second feed port 242 of the third gasifier 103 located on the downstream side. For example, when the second medium pipeline 3 of the third gasifier 103a is connected with the second medium pipeline 3 of the third gasifier 2 103b, hydrogen can flow from the second medium pipeline 3 of the third gasifier 103 on the upstream side (i.e., the third gasifier 1 103a) into the second medium pipeline 3 or the fuel cell 24 of the third gasifier 103 on the downstream side (i.e., the third gasifier 2 103b).

[0095] In some embodiments of the present invention, Figure 3 As shown, a phase change material is provided in the gasifier 100 , and the phase change material is used to store heat and transfer heat between the first medium pipeline 2 and the second medium pipeline 3 .

[0096] Phase change material refers to a material that changes its state and provides latent heat without changing its temperature. The process of changing physical properties is called phase change process. At this time, the phase change material will absorb or release a large amount of latent heat. In some embodiments, the phase change material may include paraffin and graphite. By adjusting the content of graphite in the paraffin, the performance of the phase change material can be adjusted.

[0097] The phase change material is arranged in the gasifier 100. In some embodiments, the phase change material can absorb the heat of the first medium flowing through the first medium pipeline 2 to store the heat in the phase change material, and the phase change material improves the heat transfer efficiency, so that the heat of the first medium flowing through the first medium pipeline 2 can be transferred to the second medium flowing through the second medium pipeline 3 through the phase change material, thereby reducing heat loss.

[0098] In some embodiments, since the phase change material has the property of storing heat, in the first gasifier 101, the phase change material can be used to store the heat of the air, so that the liquid hydrogen flowing through the first gasifier 101 can be fully heated; in the second gasifier 102, the phase change material can be used to store the heat of the exhaust gas, so that the hydrogen flowing through the second gasifier 102 can be fully heated; in the third gasifier 103, the phase change material can be used to store the heat of the cooling water, so that the hydrogen flowing through the third gasifier 103 can be fully heated.

[0099] like Figure 1 As shown, in some embodiments, the fuel cell system 1000 may also include a first three-way valve 261, and the three valve ports of the first three-way valve 261 are respectively connected to the second supply channel 22, the second feed port 242 and the secondary gasification part 25. Through the first three-way valve 261, the second supply channel 22 can be selectively connected to the second feed port 242 or the secondary gasification part 25. When the temperature of the hydrogen after passing through the intercooler 23 reaches the required temperature of the fuel cell 24, the second supply channel 22 is connected to the second feed port 242 to allow the hydrogen to flow into the fuel cell 24. When the temperature of the hydrogen after passing through the intercooler 23 does not reach the required temperature of the fuel cell 24, the second supply channel 22 is connected to the secondary gasification part 25, so that the hydrogen flows into the secondary gasification part 25 and heats up again.

[0100] like Figure 1As shown, in some embodiments, one of the three valve ports of the first three-way valve 261 is connected to the first sub-portion 251, so that the second supply flow channel 22 and the first sub-portion 251 are selectively connected through the first three-way valve 261. When the temperature of the hydrogen after passing through the intercooler 23 reaches the required temperature of the fuel cell 24, the second supply flow channel 22 and the first sub-portion 251 are disconnected through the first three-way valve 261, so that the hydrogen flows directly into the fuel cell 24. When the temperature of the hydrogen after passing through the intercooler 23 does not reach the required temperature of the fuel cell 24, the second supply flow channel 22 is connected to the first sub-portion 251, and the hydrogen flows into the first sub-portion 251, so that the hydrogen can be heated again in the secondary gasification section 25.

[0101] In addition, the first subsection 251 is also connected to the second feed port 242 or the second subsection 252. After flowing through the first subsection 251, the hydrogen can flow into the fuel cell 24 through the second feed port 242, or, after flowing through the first subsection 251, the hydrogen flows into the second subsection 252 and then flows into the fuel cell 24 through the second subsection 252 after further heating.

[0102] It should be noted that, when the temperature of the hydrogen flowing through the first subsection 251 reaches the required temperature of the fuel cell 24, the first subsection 251 is connected with the second feed port 242 so that the hydrogen flowing through the first subsection 251 can flow directly into the fuel cell 24; when the temperature of the hydrogen flowing through the first subsection 251 does not reach the required temperature of the fuel cell 24, the first subsection 251 is connected with the second subsection 252 so that the hydrogen flows into the second subsection 252 for heating after flowing through the first subsection 251, so that it can flow into the fuel cell 24 after the temperature of the hydrogen reaches the required temperature of the fuel cell 24.

[0103] like Figure 1 As shown, in some embodiments, the fuel cell system 1000 may also include a second three-way valve 262, and the three valve ports of the second three-way valve 262 are respectively connected to the first sub-section 251, the second feed port 242 and the second sub-section 252. Through the second three-way valve 262, the first sub-section 251 can be selectively connected to the second feed port 242 or the second sub-section 252. When the temperature of the hydrogen after passing through the first sub-section 251 reaches the required temperature of the fuel cell 24, the first sub-section 251 is connected to the second feed port 242, so that the hydrogen flows directly into the fuel cell 24. When the temperature of the hydrogen after passing through the first sub-section 251 does not reach the required temperature of the fuel cell 24, the first sub-section 251 is connected to the second sub-section 252, so that the hydrogen flows into the second sub-section 252 for heating, so that when the temperature of the hydrogen reaches the required temperature of the fuel cell 24, the hydrogen flows into the fuel cell 24 through the second sub-section 252.

[0104] Combination Figure 1 and Figure 3As shown, in some embodiments, the fuel cell system 1000 may further include a third three-way valve 263, the three valve ports of the third three-way valve 263 are respectively connected to the exhaust gas outlet 243, the first medium pipeline 2 of the second gasifier 102 and the environment, and the third three-way valve 263 is used to enable the exhaust gas outlet 243 to selectively connect to the environment through the first medium pipeline 2 of the second gasifier 102, so that the exhaust gas selectively flows through the first medium pipeline 2 of the second gasifier 102, thereby achieving the effect of selectively utilizing the heat of the exhaust gas to increase the temperature inside the second gasifier 102.

[0105] Combination Figure 1 and Figure 3 As shown, in some embodiments, the fuel cell system 1000 may further include a fourth three-way valve 264, the three valve ports of the fourth three-way valve 264 are respectively connected to the second medium pipeline 3 of the third gasifier 103a, the second medium pipeline 3 of the third gasifier 103b and the second feed port 242, and the fourth three-way valve 264 is used to allow the hydrogen in the second medium pipeline 3 of the third gasifier 103a to selectively flow into the third gasifier 2 103b and the fuel cell 24.

[0106] Combination Figure 1 and Figure 3 As shown, in some embodiments, the fuel cell system 1000 may further include a fifth three-way valve 265, the three valve ports of which are respectively connected to the second medium pipeline 3 of the third gasifier two 103b, the second medium pipeline 3 of the third gasifier three 103c and the second feed port 242, so that the hydrogen in the second medium pipeline 3 of the third gasifier two 103b can selectively flow into the third gasifier three 103c and the fuel cell 24 through the fifth three-way valve 265.

[0107] Combination Figure 1 and Figure 3 As shown, in some embodiments, the fuel cell system 1000 may further include a sixth three-way valve 266, the three valve ports of the sixth three-way valve 266 are respectively connected to the coolant outlet 244, the first medium pipeline 2 of the third gasifier 103 at the other end, and the heat dissipation inlet 291, so that the coolant flows into the second sub-section 252 or the heat dissipation element 29 through the sixth three-way valve 266.

[0108] Combination Figure 1 and Figure 3As shown, in some embodiments, the fuel cell system 1000 may also include a humidifier 27, which is connected between the intercooler 23 and the first feed port 241. It can also be understood that the humidifier 27 is connected between the first medium pipeline 2 of the first gasifier 101 and the first feed port 241. When the air is discharged from the first gasifier 101, it flows into the humidifier 27 for humidification treatment, and then the humidified air flows into the fuel cell 24 through the first feed port 241 for electrochemical reaction.

[0109] When the air flows through the first gasifier 101, it releases heat to the liquid hydrogen, the temperature of the air decreases, and there is a risk that the humidity of the air cannot meet the reaction requirements of the fuel cell 24. Therefore, a humidifier 27 is connected between the intercooler 23 and the first feed port 241, so that the humidity of the air flowing into the fuel cell 24 can be increased, so that the air can meet the reaction requirements of the fuel cell 24, thereby ensuring the working stability of the fuel cell 24.

[0110] In some embodiments of the present invention, Figure 1 As shown, the fuel cell system 1000 may further include an ion filter 30, one end of the ion filter 30 is connected to the first medium pipeline 2 of the third gasifier 103 and the heat dissipation outlet 292, and one end of the ion filter 30 is connected to the coolant inlet 245, so that the coolant needs to pass through the ion filter 30 before flowing into the fuel cell 24. The ion filter 30 is used to filter the ions contained in the coolant, thereby ensuring the working stability of the fuel cell 24.

[0111] In some embodiments of the present invention, Figure 1 As shown, the fuel cell system 1000 may further include a cooling circulation pump 31, which is connected between the coolant outlet 244 and the sixth three-way valve 266. The cooling circulation pump 31 is used to pump the coolant to the sixth three-way valve 266 to promote the circulation of the coolant.

[0112] In some embodiments of the present invention, Figure 1 As shown, the fuel cell 24 may also have a hydrogen recovery port 246, which is connected to the second feed port 242 so that hydrogen that has not been completely reacted in the fuel cell 24 can flow into the fuel cell 24 again for reaction.

[0113] In some embodiments of the present invention, Figure 1 As shown, the fuel cell system 1000 may further include a fuel circulation pump 35 , which is connected between the hydrogen recovery port 246 and the second feed port 242 , and is used to pump the hydrogen discharged from the hydrogen recovery port 246 to the second feed port 242 .

[0114] In some embodiments of the present invention, Figure 1 As shown, the fuel cell system 1000 may also include a gas-liquid separator 32, which is connected between the fuel circulation pump 35 and the second feed port 242. The gas-liquid separator 32 is used to separate the hydrogen discharged from the hydrogen recovery port 246 into gas and liquid to ensure the working stability of the fuel cell 24.

[0115] In some embodiments of the present invention, Figure 1 As shown, the fuel cell system 1000 may further include an electric heating device 33 , which selectively heats the hydrogen flowing into the fuel cell 24 through the second feed port 242 , thereby further ensuring that the temperature of the hydrogen reaches the required temperature of the fuel cell 24 .

[0116] In some embodiments of the present invention, Figure 1 As shown, the fuel cell system 1000 may further include a plurality of temperature monitoring devices 34, which are matched with a plurality of gasifiers 100, and the temperature monitoring devices 34 are used to monitor the temperature of the hydrogen flowing through the corresponding gasifiers 100 to control the flow direction of the hydrogen.

[0117] For example, a temperature monitoring device 34 is used to monitor the temperature of the hydrogen in the first gasifier 101, so as to collect whether the temperature of the hydrogen in the first gasifier 101 reaches the required temperature of the fuel cell 24, thereby allowing the hydrogen in the first gasifier 101 to selectively flow into the fuel cell 24 and the second gasifier 102.

[0118] In addition, the temperature monitoring device 34 can also be used to monitor the temperature of the hydrogen flowing into the fuel cell 24 through the second feed port 242, so that the electric heating device 33 selectively heats the hydrogen flowing into the fuel cell 24 through the second feed port 242, thereby further ensuring that the temperature of the hydrogen reaches the required temperature of the fuel cell 24.

[0119] In some embodiments, Figure 3 As shown, the gasifier 100 includes a gasifier body 1, a first medium pipeline 2 and a second medium pipeline 3. A gasification space 10 is defined in the gasifier body 1. At least part of the structure of the first medium pipeline 2 and at least part of the structure of the second medium pipeline 3 are located in the gasification space 10. The first medium flowing through the first medium pipeline 2 exchanges heat with the second medium flowing through the second medium pipeline 3.

[0120] In some embodiments, a phase change material is disposed in the gasification space 10 so that the first medium pipeline 2 and the second medium pipeline 3 transfer heat through the phase change material.

[0121] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the gasifier body 1 may include a first shell 11 , a second shell 12 and a third shell 13 , and the second shell 12 is fixedly connected between the first shell 11 and the third shell 13 to form the gasifier body 1 , so that a gasification space 10 is defined in the gasifier body 1 .

[0122] like Figure 3 As shown, in some embodiments, the first shell 11 defines a first space 10a, the second shell 12 defines a second space 10b, the third shell 13 defines a third space 10c, and the gasification space 10 includes the first space 10a, the second space 10b and the third space 10c.

[0123] like Figure 2 and Figure 3 As shown, in some embodiments, the first shell 11 forms a first interface 110 connected to the first space 10a, the third shell 13 forms a second interface 130 connected to the third space 10c, the entire structure of the first medium pipeline 2 is located in the gasification space 10, and the first medium pipeline 2 is penetrated into the second space 10b, one end of the first medium pipeline 2 is connected to the first space 10a, and the other end of the first medium pipeline 2 is connected to the third space 10c, so that the first interface 110 and the second interface 130 are connected.

[0124] During the process of the first medium flowing through the first medium pipeline 2 flowing through the gasification space 10, the first medium can flow into the first space 10a through the first interface 110, and then the first medium flows through the second space 10b through the first medium pipeline 2 and flows into the third space 10c, and finally the first medium is discharged from the third space 10c through the second interface 130, thereby achieving the effect of the first medium flowing through the gasification space 10 and exchanging heat with the second medium flowing through the second medium pipeline 3.

[0125] In addition, in some embodiments, part of the structure of the first medium pipeline 2 is located in the gasification space 10. Along the length direction of the first medium pipeline 2, one end of the first medium pipeline 2 is penetrated through the first shell 11, and the other end of the first medium pipeline 2 is penetrated through the third shell 13, that is, the first medium pipeline 2 is penetrated through the gasifier body 1, so that part of the structure of the first medium pipeline 2 is located in the gasification space 10.

[0126] like Figure 3 As shown, in some embodiments, part of the structure of the second medium pipeline 3 is located in the gasification space 10 , and along the extension direction of the second medium pipeline 3 , both ends of the second medium pipeline 3 extend out of the second shell 12 .

[0127] In addition, in some embodiments, the second shell 12 can be formed with a third interface and a fourth interface, and the entire structure of the second medium pipeline 3 is located in the gasification space 10. Along the extension direction of the second medium pipeline 3, one end of the second medium pipeline 3 is fixedly connected to the second shell 12 and communicated with the third interface, and the other end of the second medium pipeline 3 is fixedly connected to the second shell 12 and communicated with the fourth interface, so that the second medium pipeline 3 is located in the gasification space 10 and communicates with the third interface and the fourth interface, and the second medium can flow into the second medium pipeline 3 through the third interface and be discharged from the second medium pipeline 3 from the fourth interface.

[0128] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the gasifier 100 includes a plurality of second medium pipelines 3 . The plurality of second medium pipelines 3 is provided to increase the flow rate of the second medium flowing through the gasifier 100 .

[0129] In some embodiments of the present invention, Figure 3 As shown, along the first direction of the gasifier 100, the first direction is Figure 3 In the X direction shown in , a plurality of adjacent and independent subspaces 10d are formed in the gasification space 10, each of which is provided with a partial structure of the second medium pipeline 3, and the subspace 10d is provided with a phase change material, and the phase change material in each subspace 10d exchanges heat with the corresponding part of the second medium pipeline 3, so as to achieve the effect of heat exchange between the phase change material in the subspace 10d and the second medium located in the second medium pipeline 3. Figure 2 As shown, in some embodiments of the present invention, three sub-spaces 10d are formed in the second space 10b as an example.

[0130] In some embodiments of the present invention, Figure 3 As shown, the properties of the phase change materials in at least two subspaces 10d are different. In some embodiments, the phase change material may include paraffin and graphite. By adjusting the graphite content in the paraffin, the properties of the phase change material can be adjusted. For example, the graphite content of the phase change material in one subspace 10d is different from the graphite content of the phase change material in another subspace 10d.

[0131] In some embodiments of the present invention, the gasifier 100 may further include an insulation layer, which covers the outer surface of the gasifier body 1, so as to prevent the heat in the gasification space 10 from being released into the environment, thereby avoiding heat loss in the gasification space 10 and reducing heat loss of the gasifier 100.

[0132] In some embodiments of the present invention, Figure 3 and Figure 5As shown, the gasifier 100 may further include a first partition plate 51 and a second partition plate 52 , which are arranged at intervals along the first direction to separate the gasification space 10 into three subspaces 10 d.

[0133] like Figure 3 and Figure 5 As shown, in some embodiments, the first medium pipeline 2 is provided through the first partition 51 and the second partition 52, and in the first direction, the first partition 51 and the second partition 52 are spaced apart, the first partition 51 and the second partition 52 are suitable for being assembled in the second space 10b, and the edge of the first partition 51 and the edge of the second partition 52 are fixedly connected to the inner peripheral wall of the second shell 12, so that the first partition 51 and the second partition 52 are divided into three sub-spaces 10d in the second space 10b. Phase change materials with different properties are arranged in the three sub-spaces 10d, so that the overall temperature in the second space 10b is evenly distributed, thereby avoiding the second medium flowing through the second medium pipeline 3 from being overcooled.

[0134] In some embodiments of the present invention, Figure 3 and Figure 5 As shown, the gasifier 100 may further include a heat dissipation structure 40, which is disposed in the first medium pipeline 2 and located in the gasification space 10. The heat dissipation structure 40 is used to increase the heat exchange area between the first medium flowing through the first medium pipeline 2 and the phase change material in the gasification space 10, thereby improving the heat exchange efficiency between the first medium and the phase change material.

[0135] like Figure 3 and Figure 5 As shown, in some embodiments, the gasifier 100 includes a plurality of heat dissipation structures 40, and the plurality of heat dissipation structures 40 are arranged in sequence along the first direction, and two adjacent heat dissipation structures 40 are spaced apart. By providing a plurality of heat dissipation structures 40, the heat exchange area is further increased to further improve the heat exchange efficiency between the first medium flowing through the first medium pipeline 2 and the phase change material in the gasification space 10.

[0136] like Figure 3 and Figure 5 As shown, in some embodiments, the heat dissipation structure 40 is constructed as a circular plate structure, the first medium pipeline 2 is penetrated by multiple heat dissipation structures 40, and the heat dissipation structure 40 is fixed to the outer peripheral wall of the first medium pipeline 2, and the heat flowing through the first medium is transferred to the heat dissipation structure 40 through the first medium pipeline 2, and the heat is released together through the first medium pipeline 2 and the heat dissipation structure 40, thereby increasing the heat exchange area.

[0137] In some embodiments of the present invention, Figure 3 and Figure 5As shown, the second medium pipeline 3 may include a plurality of straight pipe sections 310 and a plurality of curved pipe sections 320, wherein the curved pipe sections 320 are connected between two adjacent straight pipe sections 310, and the straight pipe sections 310 and the curved pipe sections 320 are adjacent to each other in sequence, so that when the size of the second medium pipeline 3 in the first direction is constant, the extension length of the second medium pipeline 3 can be extended, thereby extending the time for the second medium flowing through the second medium pipeline 3 to flow through the second medium pipeline 3, so that the second medium flowing through the second medium pipeline 3 can fully exchange heat.

[0138] The ship according to the embodiments of the present invention includes the fuel cell system 1000 in some of the above embodiments. It should be noted that the features and advantages described above for the fuel cell system 1000 are also applicable to the ship and will not be repeated here.

[0139] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0140] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fuel cell system (1000), characterized in that: include: A fuel supply portion, the fuel supply portion having a first supply flow channel (21) and a second supply flow channel (22); Intercooler (23); A fuel cell (24), the fuel cell (24) having a first feed port (241) and a second feed port (242), the intercooler (23) being in communication with the first supply channel (21) and the first feed port (241); A secondary gasification section (25), the second supply flow channel (22) is in communication with the intercooler (23), the intercooler (23) is in communication with the second feed port (242) and the secondary gasification section (25), respectively, and the secondary gasification section (25) is in communication with the second feed port (242); The fuel cell (24) further comprises a cooling liquid outlet (244) and a cooling liquid inlet (245), wherein the cooling liquid outlet (244) is in communication with the secondary gasification section (25), and the secondary gasification section (25) conducts the cooling liquid outlet (244) and the cooling liquid inlet (245).

2. The fuel cell system (1000) according to claim 1, characterized in that: The secondary gasification section (25) comprises a first subsection (251) and a second subsection (252), one end of the first subsection (251) is in communication with the intercooler (23), and the other end of the first subsection (251) is in communication with the second feed port (242) or the second subsection (252); The first sub-section (251) and the second sub-section (252) are sequentially connected between the second supply channel (22) and the second feed port (242); The cooling liquid outlet (244) is in communication with the second sub-portion (252), and the second sub-portion (252) connects the cooling liquid outlet (244) and the cooling liquid inlet (245).

3. The fuel cell system (1000) according to claim 2, characterized in that: Also includes: A heat sink (29), wherein the heat sink has a heat sink inlet (291) and a heat sink outlet (292), wherein the heat sink inlet (291) is in communication with the coolant outlet (244), and the heat sink outlet (292) is in communication with the coolant inlet (245).

4. The fuel cell system (1000) according to claim 2, characterized in that: The fuel cell (24) also has an exhaust gas outlet (243), which is connected to the first sub-section (251) or the environment. The first sub-section (251) connects the exhaust gas outlet (243) and the environment so that the exhaust gas generated by the fuel cell (24) selectively flows through the first sub-section (251).

5. The fuel cell system (1000) according to claim 4, characterized in that: Also includes: A plurality of gasifiers (100), each of the gasifiers (100) having a first medium pipeline (2) and a second medium pipeline (3); The plurality of gasifiers (100) include: a first gasifier (101), a second gasifier (102) and a plurality of third gasifiers (103), wherein the first gasifier (101) is the intercooler (23), the second gasifier (102) is the first subsection (251), and the plurality of third gasifiers (103) constitute the second subsection (252).

6. The fuel cell system (1000) according to claim 5, characterized in that: The first medium pipeline (2) of the first gasifier (101) is in communication with the first supply channel (21) and the first feed port (241); The second medium pipeline (3) of the first gasifier (101) is connected between the second supply channel (22) and the second feed port (242), or The second medium pipeline (3) of the first gasifier (101) is connected between the second supply flow channel (22) and the secondary gasification section (25).

7. The fuel cell system (1000) according to claim 5, characterized in that: The first medium pipeline (2) of the second gasifier (102) is connected between the exhaust gas outlet (243) and the environment, and the second medium pipeline (3) of the second gasifier (102) is connected to the second feed port (242) or the second sub-section (252).

8. The fuel cell system (1000) according to claim 7, characterized in that: The plurality of second medium pipelines (3) of the plurality of third gasifiers (103) are sequentially connected in series, and the second medium pipelines (3) of two adjacent third gasifiers (103) are connected, the second medium pipeline (3) of the third gasifier (103) at one end is connected to the second medium pipeline (3) of the second gasifier (102), and the second medium pipeline (3) of the third gasifier (103) at the other end is connected to the second feed port (242); In two adjacent third gasifiers (103), the second medium pipeline (3) of the third gasifier (103) located on the upstream side is connected to the second medium pipeline (3) or the second feed port (242) of the third gasifier (103) located on the downstream side.

9. The fuel cell system (1000) according to claim 5, characterized in that: The gasifier (100) is provided with a phase change material, and the phase change material is used to store heat and transfer heat between the first medium pipeline (2) and the second medium pipeline (3).

10. A ship, characterized in that: Comprising a fuel cell system (1000) according to any one of claims 1-9.

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