Multifunctional integrated intercooling humidifier structure for hydrogen fuel cell

Abstract

The utility model discloses a multifunctional integrated intercooling humidifier structure for a hydrogen fuel cell, which relates to the technical field of hydrogen fuel cells and comprises a hydrogen storage tank, a hydrogen regulating system, an integrated intercooling humidifier, an air compressor, an air flow meter, an air filter, a box body, an electric pile and a tail discharge device, components integrated by the integrated intercooling humidifier comprise a hydrogen purging electromagnetic valve, a shunting adjusting throttle valve, a humidifier, a back pressure throttle valve, an air main path throttle valve, a bypass throttle valve, an air temperature and pressure sensor, an intercooler and an intercooler cooling water path opening and closing valve. The whole assembly has different functions, only single insulation treatment needs to be carried out, the insulation treatment mode is simple, an air flow channel is simple in structure and small in flow resistance, and meanwhile parts such as connecting pipelines and connecting joints between different assemblies are omitted.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel cells, and particularly to a multi-functional integrated intercooler humidifier structure for a hydrogen fuel cell. Background Art

[0002] In recent years, hydrogen fuel cell systems have been widely applied in different fields such as transportation, shipping, etc. The installed capacity of hydrogen fuel cell systems has increased exponentially. At the same time, with the development of multi-scenario applications of hydrogen fuel cell systems, the functions of their air supply systems have become more complex, and the number of system components involved has also become more and more large. At present, the air path of the fuel cell system needs to meet multiple functions, such as regulating the humidity of the incoming stack air, regulating the temperature of the incoming stack air, regulating the pressure of the incoming stack air, purging the escaping hydrogen in the box, purging the hydrogen path during shutdown, etc. To meet the above functional requirements, the air path involves various components such as intercoolers, humidifiers, throttle valves, solenoid valves, etc. Moreover, each component needs to be individually insulated when connected to the box, and the number of components required for connection between different systems is complex and the volume is large. Content of the Utility Model

[0003] To solve the above problems, that is, to solve the problems proposed in the above background art, the utility model proposes a multi-functional integrated intercooler humidifier structure for a hydrogen fuel cell, which includes a hydrogen storage tank, a hydrogen regulation system, an integrated intercooler humidifier, an air compressor, an air flow meter, an air filter, a box, a fuel cell stack and an exhaust device. The fuel cell stack is located in the box. The components integrated in the integrated intercooler humidifier include a hydrogen purge solenoid valve, a shunt regulation throttle valve, a humidifier, a back pressure throttle valve, an air main path throttle valve, a bypass throttle valve, an air temperature and pressure sensor, an intercooler, and an intercooler cooling water path opening and closing valve. The hydrogen storage tank is connected to the hydrogen regulation system, the integrated intercooler humidifier, the air compressor, the air flow meter, and the air filter in sequence through pipelines.

[0004] Preferably, the air compressor includes two branches. The air in the first branch directly enters the intercooler, and the second branch is connected to the intercooler cooling water path opening and closing valve.

[0005] Preferably, the output end of the intercooler humidifier includes five branches. The air in the first branch directly enters the box and then enters the exhaust device; the air in the second branch enters the hydrogen regulation system through the hydrogen purge solenoid valve and then enters the circulation pipeline of the fuel cell stack. After the hydrogen regulation system is shut down, the air flows into the exhaust device; the air in the third branch enters the exhaust device through the shunt regulation throttle valve; the air in the fourth branch enters the humidifier and then enters the fuel cell stack through the air main path throttle valve and the air temperature and pressure sensor; the air in the fifth branch is connected to the fourth branch through the bypass throttle valve, and after the reaction, it enters the exhaust device through the humidifier and the back pressure throttle valve.

[0006] The beneficial technical effects of the present utility model are as follows: The integrated intercooling humidifier integrates different components such as a hydrogen purge solenoid valve, a shunt regulating throttle valve, a humidifier, a backpressure throttle valve, an air main path throttle valve, a bypass throttle valve, and an air temperature and pressure sensor into one body. It has functions such as adjusting the humidity of the air entering the stack, adjusting the temperature of the air entering the stack, adjusting the pressure of the air entering the stack, purging the hydrogen escaping from the box body, and purging the hydrogen path during shutdown. The integrated intercooling humidifier only needs to be subjected to a single insulation treatment, and the insulation treatment method is simple. The air flow channel structure of the integrated intercooling humidifier is simple and has a small flow resistance. At the same time, components such as connecting pipes and connecting joints between different assemblies are omitted. Description of the Drawings

[0007] Figure 1 The structural schematic diagram of the present utility model is shown.

[0008] Reference Signs: 1, hydrogen storage tank; 2, hydrogen regulation system; 3, hydrogen purge solenoid valve; 4, shunt regulating throttle valve; 5, humidifier; 6, backpressure throttle valve; 7, air main path throttle valve; 8, bypass throttle valve; 9, air temperature and pressure sensor; 10, intercooler; 11, integrated intercooling humidifier; 12, air compressor; 13, on-off valve of the intercooler cooling water path; 14, air flow meter; 15, air filter; 16, box body; 17, fuel cell stack; 18, tail gas exhaust device. Detailed Embodiments

[0009] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0010] The utility model provides a multifunctional integrated intercooling humidifier structure for a hydrogen fuel cell, which comprises a hydrogen storage tank 1, a hydrogen regulating system 2, an integrated intercooling humidifier 11, an air compressor 12, an air flow meter 14, an air filter 15, a box body 16, an electric stack 17 and an exhaust device 18. The electric stack 17 is located inside the box body 16. The components integrated in the integrated intercooling humidifier 11 include a hydrogen purge solenoid valve 3, a shunt regulating throttle valve 4, a humidifier 5, a back pressure throttle valve 6, an air main path throttle valve 7, a bypass throttle valve 8, an air temperature and pressure sensor 9, an intercooler 10, and an intercooler cooling water circuit opening and closing valve 13. The hydrogen storage tank 1 is connected to the hydrogen regulating system 2, the integrated intercooling humidifier 11, the air compressor 12, the air flow meter 14, and the air filter 15 in sequence through pipelines. The air compressor 12 has two branches. The air in the first branch directly enters the intercooler 10, and the air in the second branch is connected to the intercooler cooling water circuit opening and closing valve 13. The output end of the intercooling humidifier 10 has five branches. The air in the first branch directly enters the box body 16 and then enters the exhaust device 18. The air in the second branch enters the hydrogen regulating system 2 through the hydrogen purge solenoid valve 3 and then enters the circulation pipeline of the electric stack 17. After the hydrogen regulating system 2 shuts down, the air flows into the exhaust device 18. The air in the third branch enters the exhaust device 18 through the shunt regulating throttle valve 4. The air in the fourth branch enters the humidifier 5 and then enters the electric stack 17 after passing through the air main path throttle valve 7 and the air temperature and pressure sensor 9. The air in the fifth branch is connected to the fourth branch through the bypass throttle valve 8, and after the reaction, it enters the exhaust device 18 through the humidifier 5 and the back pressure throttle valve 6.

[0011] Air passes through the air filter 15 and the air flow meter 14, and then is pressurized by the air compressor 12 and enters the integrated intercooler and humidifier 11. After the air enters the integrated intercooler and humidifier 11, it is divided into two paths. One path is not cooled and then passes through the on-off valve 13 of the intercooler cooling water circuit and converges with the main path air in front of the air temperature and pressure sensor 9 and enters the fuel cell stack 17. The other path is cooled by the intercooler 10 and then divided into five paths to achieve different functions. Among them, the air in the first branch enters the inside of the box 16 to realize the function of purging the escaped hydrogen in the box 16, and is discharged into the atmosphere through the tail gas exhaust device 18; the air in the second branch passes through the hydrogen purging solenoid valve 3 and enters the hydrogen path, purging the hydrogen inside the hydrogen chamber during the shutdown stage of the hydrogen regulation system 2 and being discharged into the atmosphere through the tail gas exhaust device 18; the air in the third branch directly enters the tail gas exhaust device 18 and is discharged into the atmosphere after passing through the shunt regulating throttle valve 4; the air in the fourth branch enters the humidifier 5 for humidification and then converges with the uncooled air after passing through the main air path throttle valve 7; the air in the fifth branch does not enter the humidifier 5 for humidification and directly passes through the bypass throttle valve 8 and then converges with the main path air and the uncooled air and enters the fuel cell stack 17 for reaction. After the reaction, the air passes through the humidifier 5 and the back pressure throttle valve 6 and then enters the tail gas exhaust device 18 and is discharged into the atmosphere. When the ambient temperature is lower than -10°C, the on-off valve 13 of the intercooler cooling water circuit is closed to reduce the heat loss of the incoming air to the stack. After the system starts normally in a low-temperature environment, when the water temperature of the cooling water circuit gradually rises to 30°C, the on-off valve 13 of the intercooler cooling water circuit is opened to resume the heat dissipation work of the intercooler 10 for the air.

[0012] The integrated intercooler and humidifier 11 integrates different components such as the hydrogen purging solenoid valve 3, the shunt regulating throttle valve 4, the humidifier 5, the back pressure throttle valve 6, the main air path throttle valve 7, the bypass throttle valve 8, and the air temperature and pressure sensor 9. It has functions such as regulating the humidity of the incoming air to the stack, regulating the temperature of the incoming air to the stack, regulating the pressure of the incoming air to the stack, purging the escaped hydrogen in the box, and purging the hydrogen path during shutdown. The integrated intercooler and humidifier 11 only needs to be subjected to a single insulation treatment, and the insulation treatment method is simple. The air flow channel structure of the integrated intercooler and humidifier 11 is simple and the flow resistance is small. At the same time, it omits components such as connecting pipes and connecting joints between different assemblies.

[0013] Although the present invention has been described with reference to the preferred embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0014] In the description of the present utility model, terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0015] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0016] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles or devices / equipment.

[0017] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A multifunctional integrated intercooler humidifier structure for a hydrogen fuel cell, comprising a hydrogen storage tank (1), a hydrogen regulating system (2), an integrated intercooler humidifier (11), an air compressor (12), an air flow meter (14), an air filter (15), a box (16), a fuel cell stack (17) and a tail exhaust device (18), characterized in that: The battery stack (17) is located in the box (16); the integrated components of the integrated intercooler humidifier (11) include a hydrogen purge solenoid valve (3), a shunt regulating throttle (4), a humidifier (5), a back pressure throttle (6), an air main throttle (7), a bypass throttle (8), an air temperature and pressure sensor (9), an intercooler (10), and an intercooler cooling water circuit opening and closing valve (13); the hydrogen storage tank (1) is connected to the hydrogen regulating system (2), the integrated intercooler humidifier (11), the air compressor (12), the air flow meter (14), and the air filter (15) in sequence through pipelines.

2. A multifunctional integrated intercooler humidifier structure for a hydrogen fuel cell according to claim 1, characterized in that: The air compressor (12) comprises two branches, the air in the first branch directly enters the intercooler (10), and the air in the second branch is connected to the intercooler cooling water circuit opening and closing valve (13).

3. The multifunctional integrated intercooler humidifier structure for a hydrogen fuel cell according to claim 1, characterized in that: The output end of the intercooler humidifier (10) includes five branches. The air of the first branch directly enters the box (16) and then enters the tail exhaust device (18); the air of the second branch enters the circulation pipeline from the hydrogen regulation system (2) to the fuel cell stack (17) through the hydrogen purge solenoid valve (3), and the air flows into the tail exhaust device (18) after the hydrogen regulation system (2) is shut down; the air of the third branch enters the tail exhaust device (18) through the bypass regulation throttle (4); the air of the fourth branch enters the humidifier (5) and then enters the fuel cell stack (17) through the main air throttle (7) and the air temperature and pressure sensor (9); the air of the fifth branch is connected to the fourth branch through the bypass throttle (8), and after the reaction, passes through the humidifier (5) and enters the tail exhaust device (18) through the back pressure throttle (6).

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