Fuel cell intercooling humidification module and fuel cell system

Abstract

The present application relates to the technical field of fuel cells, and in particular relates to a fuel cell intercooling humidification module and a fuel cell system. Embodiments of the present application provide a fuel cell intercooling humidification module, comprising a cooling apparatus and an intercooling humidification apparatus. The cooling apparatus is provided with a first liquid inlet and a first liquid outlet. The intercooling humidification apparatus comprises a mounting assembly, and a spray head and an intercooler disposed in the mounting assembly, the spray head being disposed above the intercooler, the intercooler having an air channel and a liquid cooling channel, and the air channel being in communication with a first cavity. An inlet of the spray head and an inlet of the liquid cooling channel are both connected to the first liquid outlet. The mounting assembly is provided with a first air outlet and a second liquid outlet connected to the air channel, the first air outlet being used to output air, and the second liquid outlet being connected to the first liquid inlet. An outlet of the liquid cooling channel is connected to the first liquid inlet.

Description

Fuel cell intercooling and humidification module and fuel cell system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311259186.8 filed on September 27, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of fuel cell technology, and in particular to a fuel cell intercooling and humidification module and a fuel cell system. Background Art

[0004] Fuel cells, a new clean energy source, offer advantages such as simple structure, environmental friendliness, and high safety. Their continued development in recent years has promoted the widespread adoption of fuel cell vehicles. A key factor in the sustained and stable operation of fuel cells is the provision of appropriately humidified air for the reaction and the timely removal of generated water. In existing designs, the intercooler is positioned at the dry air inlet of the humidifier. The hot air is cooled by the intercooler before entering the humidifier for humidification and ultimately entering the fuel cell stack for the reaction. However, the large size of the intercooler and humidifier results in the fuel cell's entire air system occupying a significant amount of space within the vehicle, hindering integration.

[0005] Summary of the Invention

[0006] The present application provides a fuel cell intercooling and humidification module and a fuel cell system, which to some extent improves the technical problem in the existing related technology that the entire air system of the fuel cell occupies a large space in the vehicle, which is not conducive to integration.

[0007] In a first aspect, an embodiment of the present application provides a fuel cell intercooling and humidification module, comprising:

[0008] A cooling device having a first liquid inlet and a first liquid outlet;

[0009] An intercooler humidification device, comprising a mounting assembly, a nozzle and an intercooler disposed within the mounting assembly, the mounting assembly comprising a first chamber and a second chamber, the first chamber being disposed above the second chamber, the first chamber having a first air inlet for admitting air, the nozzle disposed in the first chamber, the intercooler disposed in the second chamber, the intercooler having an air passage and a coolant passage, the air passage being in communication with the first chamber;

[0010] The inlet of the nozzle and the inlet of the coolant channel are both connected to the first liquid outlet. The mounting assembly has a first air outlet and a second liquid outlet connected to the air channel. The first air outlet is used to output air, and the second liquid outlet is connected to the first liquid inlet; the outlet of the coolant channel is connected to the first liquid inlet.

[0011] In some optimized technical solutions, the installation assembly includes a main body and a gas-liquid separator, the first chamber and the second chamber are both arranged in the main body, the gas-liquid separator is arranged on the outside of the main body, the inlet of the gas-liquid separator is connected to the air channel, and the first air outlet and the second liquid outlet are arranged in the gas-liquid separator.

[0012] In some optimized technical solutions, the main body also includes a third chamber, the first chamber, the second chamber and the third chamber are arranged in sequence along the spraying direction, the air channel is connected to the third chamber, and the inlet of the gas-liquid separator is connected to the third chamber.

[0013] In some optimized technical solutions, the intercooler includes an intercooler shell, a cooling water pipe and fins, the intercooler shell has an intercooler cavity, the cooling water pipe and the fins are both arranged in the intercooler cavity, and the fins are connected to the cooling water pipe, the cooling water channel is arranged in the cooling water pipe, and the fins and the cooling water pipe form the air channel.

[0014] In some optimized technical solutions, the cooling device includes a water tank, a radiator and a water pump connected in sequence, the water tank is used to store coolant, the inlet of the water tank is configured as a first liquid inlet, and the outlet of the water pump is configured as a first liquid outlet.

[0015] In some optimized technical solutions, a first valve is provided on the pipeline between the nozzle inlet and the first liquid outlet, and a second valve is provided on the pipeline between the coolant channel inlet and the first liquid outlet.

[0016] In the second aspect, the technical solution of the present application also provides a fuel cell system, including a fuel cell stack and a fuel cell intercooling and humidification module as described based on the above technical solution, the fuel cell stack has a second air inlet, a second air outlet, a second liquid inlet and a third liquid outlet, the second air inlet is connected to the first air outlet, the second liquid inlet is connected to the first liquid outlet, and the third liquid outlet is connected to the first liquid inlet.

[0017] In some optimized technical solutions, the fuel cell system also includes an air filter, an air compressor and a back pressure valve, the air filter is connected to the air compressor, the air outlet of the air compressor is connected to the first air inlet, and the air inlet of the back pressure valve is connected to the second air outlet.

[0018] In a third aspect, the technical solution of the present application also provides another fuel cell system, including a fuel cell stack, a controller, a detector and a fuel cell intercooling and humidification module as described above, wherein the fuel cell stack has a second air inlet, a second air outlet, a second liquid inlet and a third liquid outlet, the second air inlet is connected to the first air outlet, the second liquid inlet is connected to the first liquid outlet, and the third liquid outlet is connected to the first liquid inlet, the detector is used to detect the temperature and humidity of the air entering the stack, the first valve, the second valve and the detector are all electrically connected to the controller, and the controller controls the first valve and the second valve to be opened or disconnected.

[0019] In some optimized technical solutions, when the detector detects that the spray water generated by the nozzle can meet the cooling demand of the fuel cell stack for the air, the controller controls the first valve to open and the second valve to close; when the detector detects that the spray water cannot meet the cooling demand of the air, the controller controls both the first valve and the second valve to open; when the detector detects that the humidity of the air entering the stack meets the demand of the fuel cell stack, the controller controls the first valve to close and the second valve to open; when the detector detects that the humidity and temperature of the air entering the stack both meet the demand of the fuel cell stack, the controller controls the first valve and the second valve to close.

[0020] The beneficial effects of this application are as follows:

[0021] The present application provides a fuel cell intercooling and humidifying module and a fuel cell system, including an intercooling and humidifying device. Since the intercooling and humidifying device includes a mounting assembly and a nozzle and an intercooler arranged in the mounting assembly, the mounting assembly includes a first chamber and a second chamber, the first chamber is arranged above the second chamber, the first chamber has a first air inlet for introducing air, the nozzle is arranged in the first chamber, the intercooler is arranged in the second chamber, the intercooler has an air channel and a coolant channel, and the air channel is connected to the first chamber, that is, the intercooling and humidifying device integrates the functions of intercooling and humidification at the same time, thereby improving the integration of the air system; since the cooling device has a first liquid inlet and the first liquid outlet, the inlet of the nozzle and the inlet of the coolant channel are both connected to the first liquid outlet, the mounting assembly has a first air outlet and a second liquid outlet communicated with the air channel, the first air outlet is used to output air, and the second liquid outlet is connected to the first liquid inlet; the outlet of the coolant channel is connected to the first liquid inlet, that is, the spray water used for humidification and the cooling water for the intercooler both come from the cooling device, so the spray water can humidify the air while also cooling the air, thereby reducing the cooling requirements for the intercooler, reducing the heat dissipation area of ​​the intercooler, and thereby reducing the volume of the intercooler, the production cost and the space occupied by the entire air system in the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application.

[0023] FIG1 is a schematic structural diagram of a fuel cell system provided in this embodiment;

[0024] FIG2 is a schematic structural diagram of the intercooling and humidifying device in FIG1 ;

[0025] FIG3 is a top view of the intercooler in FIG2 .

[0026] Description of the accompanying drawings:

[0027] 1-fuel cell intercooling and humidification module, 100-cooling device, 111-first liquid inlet, 120-radiator, 130-water pump, 131-first liquid outlet, 140-deionizer, 150-first valve, 160-second valve, 200-intercooling and humidification device, 210-installation component, 211-first chamber, 212-second chamber, 213-third chamber, 214-main body, 215-gas-liquid separator, 216-first gas outlet, 2 17-Second liquid outlet, 220-Nozzle, 230-Intercooler, 231-Intercooler housing, 232-Cooling water pipe, 233-Fin, 234-Air channel, 300-Fuel cell stack, 310-Second air inlet, 320-Second air outlet, 330-Second liquid inlet, 340-Third liquid outlet, 400-Air filter, 500-Air compressor, 600-Back pressure valve, 700-Muffler, 800-Drain valve, 900-Bypass valve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0030] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0032] The fuel cell system operates by converting hydrogen into electricity through a chemical reaction with oxygen in the air. The fuel cell system consists of a hydrogen system and an air system. The hydrogen system provides hydrogen, while the air system provides clean air at the appropriate flow rate, temperature, pressure, and humidity for the fuel cell stack. The air system primarily consists of several core components, including an air filter, air compressor, intercooler, humidifier, throttle, and backpressure valve. The air filter filters particles from the air; the air compressor pressurizes the air and coordinates with the throttle to ensure the appropriate flow rate and pressure in and out of the fuel cell stack, based on the fuel cell stack's needs. The air compressor's compression process causes the air temperature to rise sharply. The intercooler acts as a heat exchanger to cool the hot air leaving the compressor. The backpressure valve regulates the exhaust flow rate and air inlet pressure of the fuel cell stack. The humidifier exchanges heat and moisture between the high-temperature, high-humidity exhaust gas from the fuel cell stack's cathode outlet and the air at the compressor outlet, meeting the fuel cell stack's humidity requirements.

[0033] In the prior art, an intercooler is placed at the dry air inlet of the humidifier. After cooling through the intercooler, the hot gas enters the humidifier for humidification before ultimately entering the fuel cell stack to participate in the reaction. However, the large size of the intercooler and humidifier results in the entire fuel cell air system occupying a large space in the vehicle, making it difficult to integrate.

[0034] In order to solve the problems existing in the relevant technology to a certain extent, the embodiment of the present application provides a fuel cell intercooler humidification module and a fuel cell system, which can reduce the cooling requirements for the intercooler, reduce the heat dissipation area of ​​the intercooler, and thereby reduce the volume of the intercooler and the space occupied by the entire air system in the vehicle.

[0035] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0036] In conjunction with Figures 1 and 2, an embodiment of the present application provides a fuel cell intercooling and humidification module 1. In some embodiments, the fuel cell intercooling and humidification module 1 includes a cooling device 100 and an intercooling and humidification device 200. The cooling device 100 has a first liquid inlet 111 and a first liquid outlet 131; the intercooling and humidification device 200 includes a mounting assembly 210 and a nozzle 220 and an intercooler 230 disposed in the mounting assembly 210. The mounting assembly 210 includes a first chamber 211 and a second chamber 212. The first chamber 211 is disposed above the second chamber 212. The first chamber 211 has a first air inlet for introducing air. The nozzle 220 is disposed in the first chamber 211, and the intercooler 230 is disposed in the second chamber 212. It is arranged above the intercooler 230, and the intercooler 230 has an air channel 234 and a coolant channel, and the air channel 234 is connected to the first chamber 211; wherein, the inlet of the nozzle 220 and the inlet of the coolant channel are both connected to the first liquid outlet 131, and the mounting assembly 210 has a first air outlet 216 and a second liquid outlet 217 connected to the air channel 234, the first air outlet 216 is used to output air, and the second liquid outlet 217 is connected to the first liquid inlet 111; the outlet of the coolant channel is connected to the first liquid inlet 111.

[0037] Mounting assembly 210 is the foundational component of intercooler-humidifier device 200, providing mounting and protection for other components of intercooler-humidifier device 200. Both nozzle 220 and intercooler 230 are located within mounting assembly 210. Cooling device 100 includes first liquid inlet 111 for inputting coolant, and first liquid outlet 131 for outputting coolant. The inlet of nozzle 220 and the inlet of the coolant channel are both connected to first liquid outlet 131, allowing coolant to enter nozzle 220 and the coolant channel. Coolant entering nozzle 220 is ejected from the nozzle holes of nozzle 220 to form spray water, humidifying and cooling the air. Coolant entering the coolant channel directly cools the air. Notably, the coolant channel and air channel 234 in intercooler 230 are arranged in an interlaced and adjacent arrangement. The air channel 234 communicates with the first chamber 211, while the coolant channel is an independent channel. This allows coolant to remove heat from the air in air channel 234 as it flows through the coolant channel.

[0038] After the air enters the first chamber 211 from the first air inlet, the spray water generated by the nozzle 220 first humidifies and cools the air, and in this process the air will diffuse into the air channel 234 of the intercooler 230, and the spray water will also flow into the air channel 234. After the air enters the air channel 234, the coolant in the coolant channel cools the air again. The humidified and cooled air then flows out through the first air outlet 216 of the mounting assembly 210, while the spray water flows out from the second liquid outlet 217. Since the second liquid outlet 217 and the outlet of the coolant channel are both connected to the first liquid inlet 111, that is, the spray water and the coolant in the coolant channel are returned to the cooling device 100 after use, and then continue to flow to the nozzle 220 and the coolant channel through the first liquid outlet 131, realizing the circulation of the coolant.

[0039] The fuel cell intercooler and humidification module 1 provided in the present embodiment integrates a humidifier and an intercooler 230, and humidifies the air through a spraying process, eliminating the traditional humidifier used in related art. Furthermore, the spray water and the coolant used by the intercooler 230 both come from the coolant of the cooling device 100. Thus, the spray water not only humidifies the air but also cools it. Because the nozzle 220 assumes some of the cooling function, the cooling requirements for the intercooler 230 are reduced, reducing the heat dissipation area of ​​the intercooler 230, thereby reducing the volume of the intercooler 230, the manufacturing cost, and the space occupied by the entire air system in the vehicle.

[0040] In some embodiments, the mounting assembly 210 includes a main body 214 and a gas-liquid separator 215, the first chamber 211 and the second chamber 212 are both arranged in the main body 214, the gas-liquid separator 215 is arranged on the outside of the main body 214, the inlet of the gas-liquid separator 215 is connected to the air channel 234, and the first air outlet 216 and the second liquid outlet 217 are both arranged in the gas-liquid separator 215.

[0041] After the air enters the first chamber 211 from the first air inlet, the spray water generated by the nozzle 220 first humidifies and cools the air. During this process, the air will diffuse into the air channel 234 of the intercooler 230, and the spray water will also flow into the air channel 234. Since the inlet of the gas-liquid separator 215 is connected to the air channel 234, the spray water and air will both enter the gas-liquid separator 215 from the air channel 234 to achieve gas-liquid separation. Finally, the air is discharged from the first air outlet 216 and the spray water is discharged from the second liquid outlet 217.

[0042] Specifically, the gas-liquid separator 215 may be disposed below the second chamber 212 , and an inlet of the gas-liquid separator 215 covers the air channel 234 , so that spray water and air may directly flow into the gas-liquid separator 215 through the air channel 234 .

[0043] In some embodiments, the main body 214 includes a third chamber 213 , the first chamber 211 , the second chamber 212 and the third chamber 213 are arranged in sequence along the spraying direction, the air channel 234 is connected to the third chamber 213 , and the inlet of the gas-liquid separator 215 is connected to the third chamber 213 .

[0044] After air enters the first chamber 211 through the first air inlet, the spray water generated by the nozzle 220 first humidifies and cools the air. During this process, the air diffuses into the air passage 234 of the intercooler 230, and the spray water also flows into the air passage 234. Ultimately, the air and spray water converge in the third chamber 213, and the resulting gas-liquid mixture then enters the gas-liquid separator 215 from the third chamber 213. Specifically, the gas-liquid mixture first enters the third chamber 213 through the air passage 234, and then enters the gas-liquid separator 215 from the third chamber 213. Therefore, the gas-liquid separator 215 only needs to be in communication with the third chamber 213 and can be located on one side of the third chamber 213. The inlet of the gas-liquid separator 215 does not need to cover the air passage 234, which can reduce the size of the gas-liquid separator 215 and lower its cost.

[0045] Specifically, the cross-section of the main body 214 can be rectangular, and the cross-sections of the first chamber 211, the second chamber 212, and the third chamber 213 can also be rectangular, and the first chamber 211, the second chamber 212, and the third chamber 213 are arranged in parallel. Because the third chamber 213 only serves to collect flow and does not perform cooling or humidification functions, the volume of the third chamber 213 can be smaller than that of the first chamber 211 and the third chamber 213.

[0046] In some embodiments, in combination with Figure 3, the intercooler 230 includes an intercooler housing 231, a cooling water pipe 232 and a fin 233. The intercooler housing 231 has an intercooler cavity. The cooling water pipe 232 and the fin 233 are both arranged in the intercooler cavity, and the fin 233 is connected to the cooling water pipe 232. The cooling water channel is arranged in the cooling water pipe 232. The fin 233 and the cooling water channel form an air channel 234.

[0047] The cooling water channel is arranged in the cooling water pipe 232, and the fins 233 and the cooling water channel form an air channel 234, so that the cooling water channel and the air channel 234 are arranged closely together, so that the coolant can take away the heat of the air in the air channel 234 during the flow of the cooling liquid channel to cool the air.

[0048] Specifically, a plurality of fins 233 are provided on the cooling water pipe 232, wherein a triangular air channel 234 is formed between every two fins 233 and the corresponding parts of the cooling water pipe 232, thereby forming a plurality of air channels 234, so that the air can fully contact each section of the cooling water pipe 232 to achieve heat exchange, thereby improving the heat exchange efficiency of the air.

[0049] Of course, multiple cooling water pipes 232 can be arranged at intervals, and each cooling water pipe 232 is provided with multiple fins 233. The fins 233 and the corresponding parts of the cooling water pipes 232 can also form a semicircular, rectangular or other shape, which is not limited to this.

[0050] In some embodiments, the cooling device 100 includes a water tank, a radiator 120 and a water pump 130 connected in sequence. The water tank is used to store coolant. The inlet of the water tank is configured as a first liquid inlet 111, and the outlet of the water pump 130 is configured as a first liquid outlet 131.

[0051] That is, the spray water and the coolant in the coolant channel enter the water tank for storage through the first liquid inlet 111. After the water pump 130 is started, the coolant flows out of the water tank, first enters the radiator 120 for heat dissipation, and then flows into the nozzle 220 and the coolant channel from the outlet of the water pump 130, realizing the circulation of the coolant.

[0052] Specifically, the cooling device 100 further includes a deionizer 140 . After the coolant flows out from the first liquid outlet 131 , it first passes through the deionizer 140 to form deionized water, and then flows into the nozzle 220 and the coolant channel.

[0053] In some embodiments, a first valve 150 is provided on the pipeline between the inlet of the nozzle 220 and the first liquid outlet 131 , and a second valve 160 is provided on the pipeline between the inlet of the cooling liquid channel and the first liquid outlet 131 .

[0054] A first valve 150 is provided on the pipeline between the inlet of the nozzle 220 and the first liquid outlet 131, and a second valve 160 is provided on the pipeline between the inlet of the coolant channel and the first liquid outlet 131, so that the switching and flow adjustment of the spray water and coolant can be realized as needed.

[0055] The fuel cell intercooling and humidification module 1 provided in this application has four working modes:

[0056] When the spray water generated by the nozzle 220 can meet the cooling demand of the fuel cell stack 300 for the air, the first valve 150 is opened and the second valve 160 is closed. That is, only the spray water is used to humidify and cool the air, and the intercooler 230 does not work to save power.

[0057] When the spray water cannot meet the cooling demand of the air, the first valve 150 and the second valve 160 are opened, so that the spray water and the intercooler 230 cool the air at the same time to make the air meet the cooling demand.

[0058] When the humidity of the incoming air meets the requirements of the fuel cell stack 300, the air no longer needs to be humidified, the first valve 150 is closed, the second valve 160 is opened, and the intercooler 230 is used to cool the air only.

[0059] When the humidity and temperature of the air entering the stack meet the requirements of the fuel cell stack 300 , the air does not need to be humidified or cooled, so the first valve 150 and the second valve 160 can be closed.

[0060] That is, by controlling the opening and closing of first valve 150 and second valve 160, four operating modes are achieved, enabling more effective control of the air intake conditions entering the reactor. Of course, the flow rates of spray water and cooling water can also be adjusted through first valve 150 and second valve 160 to more precisely control the humidification and cooling effects on the air.

[0061] The present application provides a fuel cell intercooling and humidifying module 1, including an intercooling and humidifying device 200. Since the intercooling and humidifying device 200 includes a mounting assembly 210 and a nozzle 220 and an intercooler 230 arranged in the mounting assembly 210, the mounting assembly 210 includes a first chamber 211 and a second chamber 212, the first chamber 211 is arranged above the second chamber 212, the first chamber 211 has a first air inlet for introducing air, the nozzle 220 is arranged in the first chamber 211, the intercooler 230 is arranged in the second chamber 212, the intercooler 230 has an air channel 234 and a coolant channel, and the air channel 234 is connected to the first chamber 211, that is, the intercooling and humidifying device 200 integrates the functions of intercooling and humidification at the same time, thereby improving the integration of the air system; since the cooling device 100 It has a first liquid inlet 111 and a first liquid outlet 131, the inlet of the nozzle 220 and the inlet of the coolant channel are both connected to the first liquid outlet 131, the mounting assembly 210 has a first air outlet 216 and a second liquid outlet 217 connected to the air channel 234, the first air outlet 216 is used to output air, and the second liquid outlet 217 is connected to the first liquid inlet 111; the outlet of the coolant channel is connected to the first liquid inlet 111, that is, the spray water used for humidification and the cooling water for the intercooler 230 both come from the cooling device 100, so the spray water can cool the air while humidifying the air, thereby reducing the cooling requirements for the intercooler 230, reducing the heat dissipation area of ​​the intercooler 230, and thereby reducing the volume of the intercooler 230 and the space occupied by the entire air system in the vehicle.

[0062] Based on the same inventive concept, combined with Figure 1, an embodiment of the present application also provides a fuel cell system, including a fuel cell stack 300 and the fuel cell intercooling and humidification module 1 described above, the fuel cell stack 300 has a second air inlet 310, a second air outlet 320, a second liquid inlet 330 and a third liquid outlet 340, the second air inlet 310 is connected to the first air outlet 216, the second liquid inlet 330 is connected to the first liquid outlet 131, and the third liquid outlet 340 is connected to the first liquid inlet 111.

[0063] The air discharged from the first air outlet 216 enters the fuel cell stack 300 through the second air inlet 310 to take effect, and the coolant of the cooling device 100 enters the fuel cell stack 300 through the second liquid inlet 330 to cool the fuel cell stack 300, and then returns to the cooling device 100 through the third liquid outlet 340 to realize the recycling of the coolant.

[0064] In some embodiments, the fuel cell system also includes an air filter 400, an air compressor 500 and a back pressure valve 600, the air filter 400 is connected to the air compressor 500, the air outlet of the air compressor 500 is connected to the first air inlet, and the air inlet of the back pressure valve 600 is connected to the second air outlet 320.

[0065] That is, the air pressurized by the air compressor 500 enters the fuel cell intercooling and humidification module 1 through the first air inlet for humidification and cooling. After the humidified and cooled air enters the fuel cell stack 300 to participate in the reaction, the exhaust gas is discharged through the back pressure valve 600.

[0066] Of course, the fuel cell system also includes a muffler 700, a relief valve 800, and a bypass valve 900. Mufflers 700 can be installed in areas with high noise levels to effectively reduce noise and minimize environmental impact. For example, mufflers 700 can be installed between the air filter 400 and the air compressor 500, and behind the back pressure valve 600. The relief valve 800 is used to regulate the air flow entering the fuel cell stack 300, and the bypass valve 900 is used to seal the fuel cell stack 300 during shutdown.

[0067] The beneficial effects of the fuel cell system provided by the embodiment of the present application are the same as the beneficial effects of the cooling and humidifying module 1 in the fuel cell described above, and will not be repeated here.

[0068] Based on the same inventive concept, in combination with Figure 1, an embodiment of the present application also provides another fuel cell system, including a fuel cell stack 300, a controller, a detector and the fuel cell intercooling and humidification module 1 described above, the fuel cell stack 300 has a second air inlet 310, a second air outlet 320, a second liquid inlet 330 and a third liquid outlet 340, the second air inlet 310 is connected to the first air outlet 216, the second liquid inlet 330 is connected to the first liquid outlet 131, and the third liquid outlet 340 is connected to the first liquid inlet 111, the detector is used to detect the temperature and humidity of the air entering the stack, the first valve 150, the second valve 160 and the detector are all electrically connected to the controller, and the controller controls the first valve 150 and the second valve 160 to be opened or disconnected.

[0069] Specifically, the detector is a temperature and humidity sensor, which is used to detect the temperature and humidity of the air entering the stack.

[0070] In some embodiments, when the detector detects that the spray water generated by the nozzle 220 can meet the cooling demand of the fuel cell stack 300 for the air, the controller controls the first valve 150 to open and the second valve 160 to close; when the detector detects that the spray water cannot meet the cooling demand of the air, the controller controls both the first valve 150 and the second valve 160 to open; when the detector detects that the humidity of the air entering the stack meets the demand of the fuel cell stack 300, the controller controls the first valve 150 to close; when the detector detects that the humidity and temperature of the air entering the stack both meet the demand of the fuel cell stack 300, the controller controls the first valve 150 and the second valve 160 to close.

[0071] That is, air cooled only by spraying water is first allowed to enter the fuel cell stack 300. If the detector detects that the temperature of the air entering the stack meets the requirements, it is fed back to the controller, and the controller controls the first valve 150 to open and the second valve 160 to close. The air is humidified and cooled only by spraying water, and the intercooler 230 does not work to save power. When the detector detects that the temperature of the air entering the stack does not meet the requirements, the controller controls both the first valve 150 and the second valve 160 to open, so that the spraying water and the intercooler 230 cool the air at the same time to ensure that the air meets the cooling requirements.

[0072] When the detector detects that the humidity of the air entering the stack meets the requirements of the fuel cell stack 300, the air no longer needs to be humidified, and the controller controls the first valve 150 to close and the second valve 160 to open, and the air is only cooled by the intercooler 230; when the detector detects that the humidity and temperature of the air entering the stack meet the requirements of the fuel cell stack 300, the air does not need to be humidified or cooled, and the controller controls the first valve 150 and the second valve 160 to be closed.

[0073] The fuel cell system provided in the embodiment of the present application realizes four operating modes by controlling the opening and closing of the first valve 150 and the second valve 160 , which can more effectively control the air intake conditions entering the stack and ensure that the temperature and humidity of the air entering the stack meet the requirements to a certain extent.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", 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 present application. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0075] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0076] Although the embodiments of the present application 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 intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A fuel cell intercooling and humidification module, comprising: A cooling device having a first liquid inlet and a first liquid outlet; An intercooler humidification device, comprising a mounting assembly, a nozzle and an intercooler arranged in the mounting assembly, wherein the mounting assembly comprises a first chamber and a second chamber, wherein the first chamber is arranged above the second chamber, wherein the first chamber has a first air inlet for introducing air, wherein the nozzle is arranged in the first chamber, wherein the intercooler is arranged in the second chamber, wherein the intercooler has an air channel and a coolant channel, wherein the air channel is communicated with the first chamber; The inlet of the nozzle and the inlet of the coolant channel are both connected to the first liquid outlet, the mounting assembly has a first air outlet and a second liquid outlet connected to the air channel, the first air outlet is used to output air, and the second liquid outlet is connected to the first liquid inlet; the outlet of the coolant channel is connected to the first liquid inlet.

2. The fuel cell intercooling and humidifying module according to claim 1, wherein: The mounting assembly includes a main body and a gas-liquid separator, the first chamber and the second chamber are both arranged in the main body, the gas-liquid separator is arranged outside the main body, the inlet of the gas-liquid separator is connected to the air channel, and the first air outlet and the second liquid outlet are arranged in the gas-liquid separator.

3. The fuel cell intercooling and humidifying module according to claim 2, wherein: The main body includes a third chamber, the first chamber, the second chamber and the third chamber are arranged in sequence along the spraying direction, the air channel is communicated with the third chamber, and the inlet of the gas-liquid separator is communicated with the third chamber.

4. The fuel cell intercooling and humidifying module according to claim 1, wherein: The intercooler comprises an intercooler shell, a cooling water pipe and fins. The intercooler shell has an intercooler cavity. The cooling water pipe and the fins are both arranged in the intercooler cavity, and the fins are connected to the cooling water pipe. The cooling water channel is arranged in the cooling water pipe. The fins and the cooling water pipe form the air channel.

5. The fuel cell intercooling and humidifying module according to any one of claims 1 to 4, wherein: The cooling device comprises a water tank, a radiator and a water pump which are connected in sequence. The water tank is used to store coolant. The inlet of the water tank is configured as a first liquid inlet, and the outlet of the water pump is configured as a first liquid outlet.

6. The fuel cell intercooling and humidifying module according to any one of claims 1 to 4, wherein: A first valve is provided on the pipeline between the nozzle inlet and the first liquid outlet, and a second valve is provided on the pipeline between the coolant channel inlet and the first liquid outlet.

7. A fuel cell system, comprising a fuel cell stack and a fuel cell intercooling and humidification module as described in any one of claims 1 to 6, wherein the fuel cell stack has a second air inlet, a second air outlet, a second liquid inlet and a third liquid outlet, the second air inlet is connected to the first air outlet, the second liquid inlet is connected to the first liquid outlet, and the third liquid outlet is connected to the first liquid inlet.

8. The fuel cell system according to claim 7, wherein: The system also includes an air filter, an air compressor and a back pressure valve, wherein the air filter is connected to the air compressor, an air outlet of the air compressor is connected to the first air inlet, and an air inlet of the back pressure valve is connected to the second air outlet.

9. A fuel cell system, comprising a fuel cell stack, a controller, a detector and a fuel cell intercooling and humidification module as described in claim 6, wherein the fuel cell stack has a second air inlet, a second air outlet, a second liquid inlet and a third liquid outlet, the second air inlet is connected to the first air outlet, the second liquid inlet is connected to the first liquid outlet, the third liquid outlet is connected to the first liquid inlet, the detector is used to detect the temperature and humidity of air entering the stack, the first valve, the second valve and the detector are all electrically connected to the controller, and the controller controls the first valve and the second valve to be opened or disconnected.

10. The fuel cell system according to claim 9, wherein: When the detector detects that the spray water generated by the nozzle can meet the cooling demand of the fuel cell stack for the air, the controller controls the first valve to open and the second valve to close; when the detector detects that the spray water cannot meet the cooling demand of the air, the controller controls both the first valve and the second valve to open; when the detector detects that the humidity of the air entering the stack meets the demand of the fuel cell stack, the controller controls the first valve to close and the second valve to open; when the detector detects that the humidity and temperature of the air entering the stack both meet the demand of the fuel cell stack, the controller controls the first valve and the second valve to close.

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