Fuel cell engine and intercooler-humidifier combined structure thereof

Abstract

The utility model relates to the technical field of fuel cell engines, and discloses a fuel cell engine and an intercooler-humidifier combined structure thereof, and the intercooler-humidifier combined structure comprises a humidifier which comprises an air inlet and outlet group arranged on the side surface; the intercooler and the humidifier are arranged in a stacked mode in the vertical direction, a high-pressure air outlet of the intercooler is formed in the end face facing the humidifier, and a gas-liquid inlet and outlet set is arranged on the side face of the intercooler. The humidifier and the intercooler are stacked in the vertical direction, so that the intercooler has a space capable of extending in the horizontal direction, the intercooler with a larger heat dissipation area can be additionally arranged according to the requirement of the fuel cell engine, the heat exchange efficiency of the intercooler can be improved, and the heat efficiency of the fuel cell engine is further optimized; and the air inlet and outlet group and the gas-liquid inlet and outlet group which are arranged in the horizontal direction can also reduce the bending of the pipeline, so that the installation cost of the pipeline is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell engines, in particular to a fuel cell engine and an intercooler-humidifier combined structure thereof. Background Art

[0002] The fuel cell system requires a large amount of air during operation. Generally, the air is supplied by an air compressor. However, the temperature of the air after being compressed by the air compressor will exceed the air temperature required by the fuel cell stack, so it needs to be cooled by an intercooler before being supplied to the fuel cell stack. At the same time, the fuel cell stack also has requirements for the air intake humidity, so a humidifier is also required to humidify the dry air. At present, the humidifier and intercooler of the fuel cell system are generally arranged horizontally or separately. The above arrangement will occupy a large horizontal space, making it impossible for the intercooler to extend in the horizontal direction. Since the heat dissipation pipes of the intercooler are generally arranged horizontally, the horizontal area is limited, which makes it difficult for the intercooler to obtain a large heat dissipation area. The heat transfer is easy to reach the bottleneck, affecting the overall efficiency of the fuel cell engine; on the other hand, the pipelines of the intercooler and humidifier in the horizontal direction will also have to be bent to avoid other pipelines due to the small horizontal volume. Utility Model Content

[0003] The purpose of the utility model is to provide a fuel cell engine and its intercooler-humidifier combination structure, which is beneficial to improving the heat exchange efficiency of the intercooler, further optimizing the thermal efficiency of the fuel cell engine, and on the other hand can also reduce the bending of the pipeline and reduce the installation cost of the pipeline.

[0004] In order to achieve the above object, the utility model provides an intercooler-humidifier combination structure of a fuel cell engine, comprising:

[0005] A humidifier, the humidifier comprising an air inlet and outlet group arranged on the side;

[0006] An intercooler is provided, wherein the intercooler and the humidifier are stacked in a vertical direction, the high-pressure air outlet of the intercooler is provided on the end face facing the humidifier, and a gas-liquid inlet and outlet group is provided on the side of the intercooler.

[0007] Compared with the prior art, the intercooler-humidifier combination structure of a fuel cell engine in the embodiment of the utility model has the following beneficial effects: the humidifier and the intercooler are stacked in the vertical direction, so that the intercooler has space that can be extended in the horizontal direction, and an intercooler with a larger heat dissipation area can be added according to the needs of the fuel cell engine, which is beneficial to improving the heat exchange efficiency of the intercooler and further optimizing the thermal efficiency of the fuel cell engine. On the other hand, the air inlet and outlet groups and the gas-liquid inlet and outlet groups arranged in the horizontal direction can also reduce the bending of the pipeline and reduce the installation cost of the pipeline.

[0008] In the intercooler-humidifier combination structure of the fuel cell engine of the embodiment of the utility model, the humidifier is arranged on the top of the intercooler.

[0009] The intercooler-humidifier combination structure of the fuel cell engine of the embodiment of the utility model further includes a fixing structure, which is arranged on the adjacent sides of the humidifier and the intercooler to fix the humidifier and the intercooler.

[0010] In the intercooler-humidifier combination structure of the fuel cell engine of the embodiment of the utility model, the fixing structure includes a first extension portion extending toward the humidifier and a second extension portion extending toward the intercooler.

[0011] In the intercooler-humidifier combination structure of the fuel cell engine of the embodiment of the utility model, the first extension portion is fixed to the humidifier by a first bolt, the intercooler includes a boss extending in a horizontal direction, and the second extension portion is fixed to the boss by a second bolt.

[0012] In the intercooler-humidifier combination structure of the fuel cell engine of the embodiment of the utility model, at least two fixed structures are provided, and at least two fixed structures are symmetrically distributed on both sides of the humidifier and the intercooler.

[0013] The intercooler-humidifier combination structure of the fuel cell engine of the embodiment of the utility model, the humidifier includes a first side and a second side adjacently connected, the air inlet and outlet group includes an exhaust gas outlet and a wet air inlet arranged on the first side, and also includes a dry air outlet arranged on the second side.

[0014] The intercooler-humidifier combination structure of the fuel cell engine of the embodiment of the utility model, the intercooler includes a third side and an inlet box body connected to each other, the gas-liquid inlet and outlet group includes a coolant outlet and a box purge gas outlet arranged on the third side, and the gas-liquid inlet and outlet group also include a coolant inlet and an intercooler inlet arranged on the inlet box body.

[0015] The intercooler-humidifier combination structure of the fuel cell engine of the embodiment of the utility model has a throttle assembly disposed on one side of the humidifier, and the throttle assembly includes an air intake interface and a throttle joint.

[0016] The utility model also provides a fuel cell engine, comprising the intercooler-humidifier combination structure of the fuel cell engine described in any one of the above embodiments.

[0017] Compared with the prior art, a fuel cell engine according to an embodiment of the utility model has the following beneficial effects: the fuel cell engine includes a humidifier and an intercooler which are interconnected and communicated with each other, and the humidifier and the intercooler are stacked in the vertical direction inside the space of the engine, so that the engine has more space conducive to the horizontal extension of the intercooler, and an intercooler with a larger heat dissipation area can be added according to the needs of the fuel cell engine, which is beneficial to improving the heat exchange efficiency of the intercooler and further optimizing the thermal efficiency of the fuel cell engine. On the other hand, the air inlet and outlet groups and the gas-liquid inlet and outlet groups arranged in the horizontal direction can also reduce the bending of the pipeline and reduce the installation cost of the pipeline.

[0018] 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

[0019] Figure 1 It is a schematic diagram of an intercooler-humidifier combination structure of a fuel cell engine of an embodiment of the utility model from one perspective;

[0020] Figure 2 It is a schematic diagram of another perspective of the intercooler-humidifier combination structure of the fuel cell engine of the embodiment of the utility model;

[0021] In the figure, 1. humidifier; 11. first side; 12. second side; 13. exhaust gas outlet; 14. wet air inlet; 15. dry air outlet; 2. intercooler; 21. third side; 22. inlet box; 23. coolant outlet; 24. box purge gas outlet; 25. coolant inlet; 26. intercooler inlet; 3. fixed structure; 4. throttle assembly; 41. air intake interface; 42. throttle joint. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] like Figure 1 and Figure 2 As shown, an intercooler-humidifier combination structure of a fuel cell engine in a preferred embodiment of the utility model comprises a humidifier 1 and an intercooler 2, wherein the humidifier 1 comprises an air inlet and outlet group arranged on the side, and humidification operation and exhaust gas discharge in the humidifier 1 are performed through the air inlet and outlet group on the side; the intercooler 2 and the humidifier 1 are stacked in a vertical direction, and the high-pressure air outlet of the intercooler 2 is opened on the end face facing the humidifier 1, and the high-pressure air inlet of the humidifier 1 is opened on the end face facing the intercooler 2, and the high-pressure air inlet and outlet are opened on the end face where the intercooler 2 and the humidifier 1 are in close contact, which can reduce pipeline consumables and ensure the sealing effect; a gas-liquid inlet and outlet group is arranged on the side of the intercooler 2 to ensure the gas supply and coolant supply of the intercooler 2.

[0027] The humidifier 1 and the intercooler 2 are stacked in the vertical direction so that the intercooler 2 has space to extend in the horizontal direction. An intercooler 2 with a larger heat dissipation area can be added according to the needs of the fuel cell engine, which is beneficial to improving the heat exchange efficiency of the intercooler 2 and further optimizing the thermal efficiency of the fuel cell engine. On the other hand, the air inlet and outlet groups and the gas-liquid inlet and outlet groups arranged in the horizontal direction can also reduce the bending of the pipeline and reduce the installation cost of the pipeline.

[0028] In some embodiments of the utility model, the humidifier 1 is arranged on the top of the intercooler 2, the high-pressure air outlet of the intercooler 2 is opened upward, and the inlet of the humidifier 1 is opened downward, and the high-pressure air enters the humidifier 1 from bottom to top. The structure of the humidifier 1 and the intercooler 2 stacked up and down allows the heat dissipation area of ​​the intercooler 2 to have sufficient expansion space, which is conducive to replacing intercoolers 2 of different specifications to adapt to fuel cell engines with different power requirements.

[0029] In some embodiments of the utility model, a fixing structure 3 is further included, which is arranged on the adjacent sides of the humidifier 1 and the intercooler 2 to fix the humidifier 1 and the intercooler 2. The fixing structure 3 spans the adjacent sides of the humidifier 1 and the intercooler 2 to connect and fix the humidifier 1 and the intercooler 2, so that the humidifier 1 and the intercooler 2 remain stable during operation and will not undergo relative displacement due to engine vibration, thereby ensuring that the humidifier 1 and the intercooler 2 are firmly fixed.

[0030] In some embodiments of the utility model, the fixing structure 3 includes a first extension portion 31 extending toward the humidifier 1 and a second extension portion 32 extending toward the intercooler 2. The first extension portion 31 extends upward and is fixed to the side wall of the humidifier 1, and the second extension portion 32 extends downward and is fixed to the side wall of the intercooler 2. The first extension portion 31 and the second extension portion 32 are fixedly connected. By fixing the fixing structure 3 of the intercooler 2 and the humidifier 1 at the same time, the intercooler 2 and the humidifier 1 are firmly fixed and not easy to slip.

[0031] In some embodiments of the present invention, the first extension portion 31 is fixed to the humidifier 1 by a first bolt 311, the intercooler 2 includes a boss extending in a horizontal direction, and the second extension portion 32 is fixed to the boss by a second bolt 322. By bolting, the intercooler 2 and the humidifier 1 are firmly fixed and easy to disassemble and assemble, which is beneficial to the inspection and maintenance of the fuel cell engine.

[0032] In some embodiments of the utility model, at least two fixing structures 3 are provided, and at least two fixing structures 3 are symmetrically distributed on both sides of the humidifier 1 and the intercooler 2. Multiple fixing structures 3 can also be provided to strengthen the connection between the humidifier 1 and the intercooler 2 in multiple directions, so that the fixation of the intercooler 2 and the humidifier 1 is more secure and stable.

[0033] In some embodiments of the utility model, the humidifier 1 includes a first side surface 11 and a second side surface 12 that are adjacent to each other, and the first side surface 11 and the second side surface 12 are perpendicular to each other. The air inlet and outlet group includes a waste gas outlet 13 and a wet air inlet 14 arranged on the first side surface 11, which are used for the exhaust gas discharge and wet air entry of the humidifier 1. The waste gas outlet 13 and the wet air inlet 14 are arranged far apart and do not affect each other. The air inlet and outlet group also includes a dry air outlet 15 arranged on the second side surface 12, and the dry air outlet 15 is far away from the waste gas outlet 13 and the wet air inlet 14 to prevent interference with the above-mentioned pipelines, forming a bent pipe, and increasing costs.

[0034] In some embodiments of the utility model, the intercooler 2 includes a third side 21 and an inlet box 22 connected to each other, and the gas-liquid inlet and outlet group includes a coolant outlet 23 and a box purge gas outlet 24 arranged on the third side 21, the coolant outlet 23 is used to discharge the coolant after heat exchange is completed, and the box purge gas outlet 24 is used to discharge the air used for convection heat exchange with the cold exhaust, both of which take away heat inside the intercooler 2; the gas-liquid inlet and outlet group also include a coolant inlet 25 and an intercooler inlet 26 arranged on the inlet box 22, which are used for the entry of coolant and high-pressure and high-temperature gas, respectively, and are not close to the coolant outlet 23 to prevent influence and interference.

[0035] In some embodiments of the present invention, a throttle assembly 4 is provided on one side of the humidifier 1 , and the throttle assembly 4 includes an air inlet interface 41 and a throttle joint 42 . The throttle is used to input gas from the outside to ensure the normal operation of the humidifier 1 .

[0036] The fuel cell engine of the preferred embodiment of the utility model includes the intercooler 2 and humidifier 1 structure of the fuel cell engine described in any one of the above embodiments. The fuel cell engine includes a humidifier 1 and an intercooler 2 that are connected and communicated with each other. The humidifier 1 and the intercooler 2 are stacked in the vertical direction inside the engine space, so that there is more space in the engine that is conducive to the extension of the intercooler 2 in the horizontal direction. An intercooler 2 with a larger heat dissipation area can be added according to the needs of the fuel cell engine, which is conducive to improving the heat exchange efficiency of the intercooler 2 and further optimizing the thermal efficiency of the fuel cell engine. On the other hand, the air inlet and outlet groups and the gas-liquid inlet and outlet groups arranged in the horizontal direction can also reduce the bending of the pipeline and reduce the installation cost of the pipeline.

[0037] In summary, the embodiment of the utility model provides a fuel cell engine and its intercooler 2 and humidifier 1 structure, which, on the one hand, can add an intercooler 2 with a larger heat dissipation area according to the needs of the fuel cell engine, which is beneficial to improving the heat exchange efficiency of the intercooler 2 and further optimizing the thermal efficiency of the fuel cell engine. On the other hand, the air inlet and outlet groups and the gas-liquid inlet and outlet groups arranged in the horizontal direction can also reduce the bending of the pipeline and reduce the installation cost of the pipeline.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A combined intercooler-humidifier structure for a fuel cell engine, characterized in that: include: A humidifier, the humidifier comprising an air inlet and outlet group arranged on the side; An intercooler is provided, wherein the intercooler and the humidifier are stacked in a vertical direction, the high-pressure air outlet of the intercooler is provided on the end face facing the humidifier, and a gas-liquid inlet and outlet group is provided on the side of the intercooler.

2. The intercooler-humidifier combination structure of the fuel cell engine according to claim 1, characterized in that: The humidifier is arranged on the top of the intercooler.

3. The intercooler-humidifier combination structure of the fuel cell engine according to claim 1, characterized in that: The invention also comprises a fixing structure, wherein the fixing structure is arranged on adjacent sides of the humidifier and the intercooler to fix the humidifier and the intercooler.

4. The intercooler-humidifier combination structure of the fuel cell engine according to claim 3, characterized in that: The fixing structure includes a first extending portion extending toward the humidifier and a second extending portion extending toward the intercooler.

5. The intercooler-humidifier combination structure of the fuel cell engine according to claim 4, characterized in that: The first extension portion is fixed to the humidifier by a first bolt, the intercooler includes a boss extending in a horizontal direction, and the second extension portion is fixed to the boss by a second bolt.

6. The intercooler-humidifier combination structure of the fuel cell engine according to claim 3, characterized in that: At least two fixed structures are provided, and the at least two fixed structures are symmetrically distributed on both sides of the humidifier and the intercooler.

7. The intercooler-humidifier combination structure of a fuel cell engine according to claim 1, characterized in that: The humidifier includes a first side surface and a second side surface that are adjacently connected. The air inlet and outlet group includes an exhaust gas outlet and a wet air inlet disposed on the first side surface, and also includes a dry air outlet disposed on the second side surface.

8. The intercooler-humidifier combination structure of a fuel cell engine according to claim 1, characterized in that: The intercooler includes a third side and an inlet box body connected to each other, the gas-liquid inlet and outlet group includes a coolant outlet and a box purge gas outlet arranged on the third side, and the gas-liquid inlet and outlet group also include a coolant inlet and an intercooler inlet arranged on the inlet box body.

9. The intercooler-humidifier combination structure of a fuel cell engine according to claim 1, characterized in that: A throttle assembly is arranged on one side of the humidifier, and the throttle assembly comprises an air intake interface and a throttle joint.

10. A fuel cell engine, characterized in that: An intercooler-humidifier combination structure of a fuel cell engine comprising any one of claims 1-9.

Images