Fuel cell structure integrating multiple throttle valves and intercooler

Abstract

The utility model provides a fuel cell structure integrating a plurality of throttle valves and an intercooler. The utility model discloses a fuel cell structure integrating multiple throttle valves and an intercooler. The fuel cell structure comprises an intercooler body, wherein a flange is fixedly arranged at the air outlet end of the intercooler body; the purging connector is installed on the connecting part and located at the small air outlet flow dividing opening, and the connecting part is fixedly arranged on the flange. The fuel cell structure integrating the plurality of throttle valves and the intercooler provided by the utility model solves the problems that the throttle valves are usually arranged on a shunting pipeline on an air side in the existing technical scheme, so that the pipeline design is complicated due to excessive throttle valves, the requirement on space is high, and the cost is low. The defects that in the prior art, a throttle valve is arranged on a middle pipeline, an additional support is added, cost is increased, assembly is complex and the like are caused, and the assembling efficiency of a fuel cell engine is affected are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel cells, in particular to a fuel cell structure integrating a plurality of throttle valves and an intercooler. Background Art

[0002] The hydrogen fuel cell system has the advantages of zero emission and fast hydrogen refueling. It can effectively solve the problems of long charging time and short driving range of lithium batteries. It is a new energy vehicle power system with broad development prospects. Hydrogen fuel cells are usually composed of components such as the stack, hydrogen system, air system, thermal management system and control system. The stack is the core component of the fuel cell system, and its interface integrates the mechanical interfaces of the above-mentioned hydrogen system, air system, thermal management system and other components. For the air system, the air is pressurized by the air compressor and then enters the intercooler and humidifier through the pipeline, and finally enters the fuel cell stack through the pipeline. In order to control the air flow, throttles such as bypass valves and stop valves need to be arranged on the connecting pipelines from the intercooler to the humidifier, the intercooler to the fuel cell stack, and the intercooler to the tail exhaust. In order to maintain the stability of the air inlet pressure, a throttle such as a back pressure valve needs to be arranged on the pipeline. In order to avoid air compressor surge and adjust the intake metering ratio of low-temperature cold start, a throttle such as an intake bypass valve needs to be arranged on the pipeline. Therefore, the fuel cell engine needs to arrange many throttles on the outlet side of the intercooler to ensure the diversion of air. The existing technical solutions usually arrange throttles on the diversion pipeline on the air side. Too many throttles will cause complex pipeline design and high space requirements. In addition, there is a situation where the gas flow is unevenly distributed in the pipeline, resulting in insufficient performance. In addition, the throttle arranged on the intermediate pipeline will increase additional support, resulting in increased costs, complex assembly and other problems, affecting the assembly efficiency of the fuel cell engine.

[0003] However, existing technical solutions usually arrange throttles on the bypass pipeline on the air side. Too many throttles will make the pipeline design complicated and have high space requirements. In addition, there is an uneven flow distribution of gas in the pipeline, resulting in insufficient performance. In addition, the throttle is arranged in the middle pipeline, which will add additional support, resulting in increased costs, complicated assembly and other problems, which affect the assembly efficiency of the fuel cell engine. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a fuel cell structure integrating multiple throttles with an intercooler, so as to solve the problem that the existing technical solutions usually arrange the throttles on the bypass pipeline on the air side. Too many throttles will cause complex pipeline design and high space requirements, and there will be uneven flow distribution of gas in the pipeline, resulting in insufficient performance. In addition, the arrangement of the throttle on the intermediate pipeline will increase additional support, resulting in increased costs, complicated assembly and other problems, which affect the assembly efficiency of the fuel cell engine.

[0005] According to a first aspect of the utility model, a fuel cell structure integrating multiple throttle valves with an intercooler is provided, comprising: an intercooler body, a flange being fixedly provided at an outlet end of the intercooler body;

[0006] A connecting part, wherein the connecting part has a first cavity for accommodating air, a main air inlet, a plurality of large air outlet diversion ports, and at least one small air outlet diversion port are provided on the connecting part, the main air inlet, the plurality of large air outlet diversion ports, and the at least one small air outlet diversion port are all connected with the first cavity, a purge joint is installed on the connecting part, and the purge joint is located at the small air outlet diversion port, the connecting part is fixedly provided on the flange, and the main air inlet is provided correspondingly to the air outlet end of the intercooler body;

[0007] Multiple throttles, the number of which matches the number of the multiple large air outlet diversion ports, are installed on the connecting portion, and the multiple throttles are respectively located at the corresponding large air outlet diversion ports.

[0008] Optionally, the number of large air outlet diversion ports is three, the number of small air outlet diversion ports is one, the main air inlet is arranged on one side of the connecting part, the three large air outlet diversion ports and one small air outlet diversion port are respectively arranged on the other four side surfaces of the connecting part adjacent to the main air inlet, and the three large air outlet diversion ports are arranged one-to-one correspondingly to the three throttle valves.

[0009] Optionally, the three throttles are a stop valve, an inlet bypass valve and a bypass valve, the stop valve is connected to the inlet of the humidifier, the bypass valve is connected to the outlet of the humidifier, and the inlet bypass valve is connected to the tail exhaust port.

[0010] Optionally, the stop valve and the bypass valve are arranged opposite to each other.

[0011] Optionally, a small outlet branch port is connected to an air inlet purge port of the fuel cell stack via a purge joint.

[0012] Through the utility model, a fuel cell structure integrating multiple throttles with an intercooler is provided, and a flange is fixedly arranged at the air outlet end of the intercooler body; a first cavity for accommodating air is provided inside the connecting part, and a main air inlet, multiple large air outlet diversion ports and at least one small air outlet diversion port are provided on the connecting part, and the main air inlet, multiple large air outlet diversion ports and at least one small air outlet diversion port are all connected with the first cavity, a purge joint is installed on the connecting part, and the purge joint is located at the small air outlet diversion port, the connecting part is fixedly arranged on the flange, and the main air inlet and the air outlet end of the intercooler body are arranged correspondingly; the number of multiple throttles matches the number of multiple large air outlet diversion ports, multiple throttles are installed on the connecting part, and the multiple throttles are respectively arranged at the corresponding large air outlet diversion ports, the structural integration of the present application is high, not only multiple throttles can be integrated, but also at least one purge joint can be integrated, the assembly process is simple, redundant parts are reduced, and costs can be reduced. Therefore, the utility model solves the problem that the existing technical solutions usually arrange throttle valves on the diversion pipeline on the air side. Too many throttle valves will cause complex pipeline design and high space requirements, and there will be uneven flow distribution of gas in the pipeline, resulting in insufficient performance. In addition, the arrangement of the throttle valve on the intermediate pipeline will increase additional support, resulting in increased costs, complicated assembly and other problems, which affect the assembly efficiency of the fuel cell engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure from a first perspective of a fuel cell structure integrating multiple throttle valves and an intercooler provided by the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure from a second perspective of a fuel cell structure integrating multiple throttle valves and an intercooler provided by the utility model;

[0015] Figure 3 A schematic diagram of the overall structure from a third perspective of a fuel cell structure integrating multiple throttle valves and an intercooler provided by the utility model;

[0016] Figure 4 It is a structural schematic diagram of a first perspective of a connecting portion in a fuel cell structure integrating multiple throttle valves and an intercooler provided by the utility model;

[0017] Figure 5 It is a structural schematic diagram of a second perspective of a connecting portion in a fuel cell structure integrating multiple throttle valves and an intercooler provided by the utility model;

[0018] Figure 6 The utility model provides a schematic structural diagram of a combination of a connecting portion and a purge joint in a fuel cell structure integrating multiple throttle valves and an intercooler.

[0019] List of reference numerals:

[0020] 10. Intercooler body; 20. Flange; 30. Connection part; 31. Main air inlet; 32. Large air outlet; 33. Small air outlet; 40. Purge joint; 50. Throttle; 60. Stop valve; 70. Inlet bypass valve; 80. Bypass valve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Reference Figures 1 to 6 The utility model provides a fuel cell structure integrating multiple throttles with an intercooler, which can solve the problem that the existing technical solutions usually arrange throttles on the air side of the bypass pipeline. Too many throttles will cause complex pipeline design and high space requirements. In addition, there is an uneven flow distribution of gas in the pipeline, resulting in insufficient performance. In addition, the arrangement of the throttle on the intermediate pipeline will increase additional support, resulting in increased costs, complicated assembly and other problems, which affect the assembly efficiency of the fuel cell engine.

[0025] The utility model provides a fuel cell structure integrating multiple throttle valves with an intercooler, comprising: an intercooler body 10, a connecting portion 30 and multiple throttle valves 50, the outlet end of the intercooler body 10 is fixedly provided with a flange 20; the connecting portion 30 has a first cavity for accommodating air inside, a main air inlet 31, multiple large outlet split ports 32 and at least one small outlet split port 33 are provided on the connecting portion 30, the main air inlet 31, multiple large outlet split ports 32 and at least one small outlet split port 33 are all connected to the first cavity, a purge joint 40 is installed on the connecting portion 30, and the purge joint 40 is located at the small outlet split port 33, the connecting portion 30 is fixedly provided on the flange 20, and the main air inlet 31 is provided corresponding to the outlet end of the intercooler body 10;

[0026] The number of the plurality of throttle valves 50 matches the number of the plurality of large outlet flow diversion ports 32 . The plurality of throttle valves 50 are mounted on the connecting portion 30 , and the plurality of throttle valves 50 are respectively located at the corresponding large outlet flow diversion ports 32 .

[0027] Among them, since the present application is a special-shaped structure, the throttle 50 can be placed according to the overall layout requirements to meet different layout requirements; a plurality of mounting holes are provided on the connecting portion 30, and a plurality of throttles 50 are installed on the connecting portion 30 through the mounting holes; the plurality of throttles 50 and the intercooler body 10 are all controlled by a control system.

[0028] In addition, the structure of the connection part 30 can also be used for hydrogen and water, and the present application is used for air.

[0029] The utility model provides a fuel cell structure integrating multiple throttles with an intercooler, wherein a flange 20 is fixedly provided at the air outlet end of the intercooler body 10; a first cavity for accommodating air is provided inside the connecting portion 30, a main air inlet 31, multiple large air outlet diversion ports 32 and at least one small air outlet diversion port 33 are provided on the connecting portion 30, the main air inlet 31, multiple large air outlet diversion ports 32 and at least one small air outlet diversion port 33 are all connected to the first cavity, a purge joint 40 is provided on the small air outlet diversion port 33, the connecting portion 30 is fixedly provided on the flange 20, and the main air inlet 31 is arranged corresponding to the air outlet end of the intercooler body 10; the number of the multiple throttles 50 matches the number of the multiple large air outlet diversion ports 32, and the multiple throttles 50 are respectively arranged on the corresponding large air outlet diversion ports 32, the structural integration of the present application is high, not only can multiple throttles 50 be integrated, but also at least one purge joint 40 can be integrated, the assembly process is simple, redundant parts are reduced, and the cost can be reduced. Therefore, the utility model solves the problem that the existing technical solutions usually arrange throttle valves on the diversion pipeline on the air side. Too many throttle valves will cause complex pipeline design and high space requirements, and there will be uneven flow distribution of gas in the pipeline, resulting in insufficient performance. In addition, the arrangement of the throttle valve on the intermediate pipeline will increase additional support, resulting in increased costs, complicated assembly and other problems, which affect the assembly efficiency of the fuel cell engine.

[0030] See also Figures 4 to 5 Optionally, the number of large air outlet diversion ports 32 is three, the number of small air outlet diversion ports 33 is one, the main air inlet 31 is arranged on one side of the connecting portion 30, and the three large air outlet diversion ports 32 and one small air outlet diversion port 33 are respectively arranged on the other four side surfaces of the connecting portion 30 adjacent to the main air inlet 31, and the three large air outlet diversion ports 32 are arranged in one-to-one correspondence with the three throttle valves 50.

[0031] See also Figure 1 to Figure 2 Optionally, the three throttle valves 50 are a stop valve 60, an inlet bypass valve 70 and a bypass valve 80, the stop valve 60 is connected to the inlet of the humidifier, the bypass valve 80 is connected to the outlet of the humidifier, and the inlet bypass valve 70 is connected to the tail exhaust port.

[0032] See also Figure 2 Optionally, the stop valve 60 and the bypass valve 80 are arranged opposite to each other.

[0033] Reference Figure 6 Optionally, a small outlet branch port 33 is connected to an air inlet purge port of the fuel cell stack through a purge connector 40 .

[0034] Among them, the provision of a small gas outlet branch port 33 can supply purge gas to the fuel cell stack.

[0035] Working principle: The present application sets a main air inlet 31 and multiple large air outlet diversion ports 32 to ensure the distribution of gas, and throttle valves 50 are respectively assembled on the connecting part 30. The air flow rate is distributed by controlling the opening of different throttle valves 50, so that the air flows to the fuel cell stack, humidifier and tail exhaust port respectively. In addition, at least one small air outlet diversion port 33 is set on the connecting part 30, and its setting can supply gas for purge gas to the fuel cell stack. This manifold structure has a high degree of integration, and can integrate not only the throttle valve 50 but also the small air outlet diversion ports 33. The assembly process is simple, and redundant parts are reduced, which can reduce costs. Since the structure is a special-shaped structure, the throttle valve 50 can be placed according to the overall layout requirements to meet different layout requirements.

[0036] In summary, the utility model provides a fuel cell structure integrating multiple throttle valves with an intercooler, wherein a flange 20 is fixedly arranged at the outlet end of the intercooler body 10; a first cavity for accommodating air is provided inside the connecting portion 30, and a main air inlet 31, multiple large air outlet diversion ports 32 and at least one small air outlet diversion port 33 are provided on the connecting portion 30, and the main air inlet 31, multiple large air outlet diversion ports 32 and at least one small air outlet diversion port 33 are all connected to the first cavity, and a small air outlet diversion port 33 is provided on the connecting portion 30. The purge joint 40 and the connecting part 30 are fixedly provided on the flange 20, and the main air inlet 31 is arranged corresponding to the air outlet end of the intercooler body 10; the number of the plurality of throttle valves 50 matches the number of the plurality of large air outlet diversion ports 32, and the plurality of throttle valves 50 are respectively arranged on the corresponding large air outlet diversion ports 32. The structural integration of the present application is relatively high, and it can not only integrate a plurality of throttle valves 50, but also integrate at least one purge joint 40. The assembly process is simple, and redundant parts are reduced, which can reduce costs. Therefore, the utility model solves the problem that the existing technical solutions usually arrange throttle valves on the air side diversion pipeline, too many throttle valves will cause complex pipeline design, and the space requirements are relatively high. In addition, there is a situation where the gas flow distribution in the pipeline is uneven, resulting in insufficient performance. In addition, the arrangement of the throttle valve on the intermediate pipeline will increase additional support, resulting in increased costs, complex assembly, and other problems, which affect the assembly efficiency of the fuel cell engine.

[0037] It should be noted that not all steps and modules in the above-mentioned processes and system structure diagrams are necessary, and some steps or modules can be ignored according to actual needs. The execution order of each step is not fixed and can be adjusted as needed. The system structure described in the above-mentioned embodiments can be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or some components in multiple independent devices may be implemented together.

[0038] In the above embodiments, the hardware module can be implemented mechanically or electrically. The above text shows and describes the present invention in detail through the accompanying drawings and preferred embodiments, but the present invention is not limited to these disclosed embodiments. Based on the above embodiments, those skilled in the art can know that the code review methods in the above different embodiments can be combined to obtain more embodiments of the present invention, and these embodiments are also within the protection scope of the present invention.

Claims

1. A fuel cell structure integrating multiple throttle valves and an intercooler, characterized in that: include: An intercooler body (10), wherein a flange (20) is fixedly provided at the air outlet end of the intercooler body (10); A connecting portion (30), wherein the connecting portion (30) has a first cavity for accommodating air, and the connecting portion (30) is provided with a main air inlet (31), a plurality of large air outlet diversion ports (32) and at least one small air outlet diversion port (33); the main air inlet (31), the plurality of large air outlet diversion ports (32) and the at least one small air outlet diversion port (33) are all in communication with the first cavity, a purge joint (40) is mounted on the connecting portion (30), and the purge joint (40) is located at the small air outlet diversion port (33); the connecting portion (30) is fixedly mounted on the flange (20), and the main air inlet (31) is arranged corresponding to the air outlet end of the intercooler body (10); A plurality of throttle valves (50), the number of the plurality of throttle valves (50) matches the number of the plurality of large air outlet diversion ports (32), the plurality of throttle valves (50) are mounted on the connecting portion (30), and the plurality of throttle valves (50) are respectively located at corresponding large air outlet diversion ports (32).

2. A fuel cell structure integrating multiple throttle valves and an intercooler according to claim 1, characterized in that: The number of the large air outlet diversion ports (32) is three, the number of the small air outlet diversion ports (33) is one, the main air inlet (31) is arranged on a side surface of the connecting portion (30), the three large air outlet diversion ports (32) and the one small air outlet diversion port (33) are respectively arranged on the other four side surfaces of the connecting portion (30) adjacent to the main air inlet (31), and the three large air outlet diversion ports (32) are arranged in one-to-one correspondence with the three throttle valves (50).

3. A fuel cell structure integrating multiple throttle valves and an intercooler according to claim 2, characterized in that: The three throttle valves (50) are respectively a stop valve (60), an inlet bypass valve (70) and a bypass valve (80); the stop valve (60) is connected to the inlet of the humidifier, the bypass valve (80) is connected to the outlet of the humidifier, and the inlet bypass valve (70) is connected to the tail exhaust port.

4. A fuel cell structure integrating multiple throttle valves and an intercooler according to claim 3, characterized in that: The stop valve (60) and the bypass valve (80) are arranged opposite to each other.

5. A fuel cell structure integrating multiple throttle valves and an intercooler according to claim 2, characterized in that: One of the small outlet branch ports (33) is connected to the air inlet purge port of the fuel cell stack via the purge connector (40).

Images