Heat exchange and sound elimination integrated device, fuel cell heat dissipation system and fuel cell

Abstract

The present application relates to the technical field of fuel cell, and discloses a heat exchange and noise elimination integrated device, a fuel cell heat dissipation system and a fuel cell. Air flow enters a first expansion cavity with suddenly increased cross section through an air inlet pipe, and then enters a heat exchange assembly for heat exchange. The air flow after heat exchange enters a second expansion cavity with suddenly increased cross section, and interference noise elimination is realized by multiple reflections of the air flow. The heat exchange assembly is arranged in a heat exchange and noise elimination shell, so that heat exchange and noise elimination are integrated. The heat exchange and noise elimination integrated device occupies a small space, cancels the connecting pipeline required by the split arrangement of the heat exchanger and the noise eliminator in the prior art, reduces the number of parts, reduces the cost, and improves the integration of the fuel cell heat dissipation system.

Description

Technical Field

[0001] This invention relates to the field of fuel cell technology, and in particular to an integrated heat exchange and noise reduction device, a fuel cell heat dissipation system, and a fuel cell. Background Technology

[0002] For devices that require both heat exchange and noise reduction, heat exchangers are typically used for heat exchange, and silencers are used for noise reduction. However, heat exchangers and silencers are usually installed separately and connected by pipes, resulting in a large number of components, a large space occupation, and high costs.

[0003] Therefore, there is an urgent need for an integrated heat exchange and noise reduction device to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to propose an integrated heat exchange and noise reduction device, a fuel cell heat dissipation system, and a fuel cell, so as to achieve integrated heat exchange and noise reduction, reduce the number of parts, improve the integration degree, reduce the space occupied, and reduce the cost.

[0005] To achieve this objective, firstly, the present invention adopts the following technical solution:

[0006] The integrated heat exchange and noise reduction device includes:

[0007] A heat exchange silencing shell, wherein an air inlet pipe and an air outlet pipe are respectively connected to both ends of the heat exchange silencing shell in the first direction, and the heat exchange silencing shell is connected to a heat exchange inlet and a heat exchange outlet;

[0008] A heat exchange assembly is installed inside the heat exchange silencing housing, and divides the inner cavity of the heat exchange silencing housing into a first expansion cavity communicating with the air inlet pipe and a second expansion cavity communicating with the air outlet pipe; the heat exchange assembly has a first flow channel and a second flow channel, the first expansion cavity and the second expansion cavity are connected through the first flow channel, one end of the second flow channel is connected to the heat exchange inlet, and the other end is connected to the heat exchange outlet.

[0009] As a preferred technical solution of the above-mentioned heat exchange and noise reduction integrated device, the first flow channel is provided in multiple ways, and the multiple first flow channels are distributed sequentially along the second direction.

[0010] As a preferred technical solution of the above-mentioned heat exchange and noise reduction integrated device, the heat exchange component includes a plurality of flow channel plates that are perpendicular to the second direction and distributed sequentially at intervals along the second direction. Each flow channel plate has a sub-flow channel, and a first flow channel is formed between two adjacent flow channel plates.

[0011] Multiple flow channel plates distributed along the second direction are connected in sequence to form a wave-shaped second flow channel.

[0012] As a preferred technical solution of the above-mentioned heat exchange and noise reduction integrated device, the surface of the flow channel plate is formed with a plurality of spaced protrusions.

[0013] As a preferred technical solution of the above-mentioned heat exchange and noise reduction integrated device, a reinforcing rib is provided in the first flow channel between two adjacent flow channel plates, and the two ends of the reinforcing rib in the second direction are respectively connected to the two flow channel plates.

[0014] As a preferred technical solution of the above-mentioned integrated heat exchange and noise reduction device, the heat exchange component includes:

[0015] Two heat exchange brackets are spaced apart along the first direction and installed on the heat exchange and sound-absorbing shell;

[0016] A heat exchange tube is disposed between two heat exchange supports and fixedly installed on the heat exchange supports. The heat exchange tube extends along the first direction and is provided in multiples. The multiple heat exchange tubes are spaced apart and connected in sequence to form the second flow channel. The first flow channel is formed between the multiple heat exchange tubes. The heat exchange support is provided with a connecting hole that extends along the first direction and communicates with the first flow channel.

[0017] As a preferred technical solution of the above-mentioned integrated heat exchange and noise reduction device, the surface of the heat exchange tube is provided with a plurality of spaced protrusions.

[0018] To achieve the above objectives, in a second aspect, the present invention also provides a fuel cell heat dissipation system, including the heat exchange and noise reduction integrated device described in any of the above embodiments, wherein the air inlet pipe is used to connect to the exhaust port of the fuel cell stack, the heat exchange inlet is used to connect to the coolant outlet of the fuel cell stack, and the heat exchange outlet is used to connect to the coolant inlet of the fuel cell stack.

[0019] The fuel cell cooling system also includes:

[0020] A radiator, wherein the medium inlet of the radiator is used to connect to the coolant outlet of the fuel cell stack, and the medium outlet of the radiator is used to connect to the coolant inlet of the fuel cell stack; the radiator has an upstream side and a downstream side arranged opposite to each other along the airflow direction;

[0021] A cooling fan that enables airflow from the upstream side to the downstream side;

[0022] A heat dissipation atomization unit is used to atomize water into water mist and spray the water mist towards the upstream side;

[0023] A ducting fan, the inlet of which is connected to the outlet pipe, and the outlet of which is connected to the inlet of the heat dissipation atomizing unit.

[0024] As a preferred technical solution for the aforementioned fuel cell heat dissipation system, the duct fan is located inside the air inlet pipe.

[0025] In order to achieve the above objectives, in a third aspect, the present invention also provides a fuel cell including the above-described fuel cell heat dissipation system.

[0026] The beneficial effects of this invention are as follows: The heat exchange and noise reduction integrated device, fuel cell heat dissipation system, and fuel cell provided by this invention allow airflow to enter the first expansion cavity with a suddenly increased cross-sectional area through the intake pipe, and then enter the heat exchange component for heat exchange. After heat exchange, the airflow enters the second expansion cavity with a suddenly increased cross-sectional area, and interference noise reduction is achieved by utilizing multiple reflections of the airflow. Moreover, the heat exchange component is set inside the heat exchange and noise reduction shell, realizing the integrated setting of heat exchange and noise reduction. The entire heat exchange and noise reduction integrated device occupies little space, eliminates the connecting pipes required for the separate setting of heat exchanger and silencer in the prior art, reduces the number of parts, lowers costs, and improves the integration of fuel cell heat dissipation system. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0028] Figure 1 This is a cross-sectional view of the first heat exchange and noise reduction integrated device provided in the embodiments of the present invention. Figure 1 ;

[0029] Figure 2 This is a cross-sectional view of the first heat exchange and noise reduction integrated device provided in the embodiments of the present invention. Figure 2 ;

[0030] Figure 3 This is a front view of the flow channel plate in the first heat exchange and noise reduction integrated device provided in this embodiment of the invention;

[0031] Figure 4 This is a cross-sectional view of the second integrated heat exchange and noise reduction device provided in the embodiments of the present invention. Figure 1 ;

[0032] Figure 5 This is a cross-sectional view of the second integrated heat exchange and noise reduction device provided in the embodiments of the present invention. Figure 2 ;

[0033] Figure 6 This is a schematic diagram of the fuel cell heat dissipation system provided in an embodiment of the present invention.

[0034] In the picture:

[0035] 1. Heat exchanger silencer shell; 11. Heat exchanger inlet; 12. Heat exchanger outlet; 13. Expansion chamber one; 14. Expansion chamber two; 15. Second expansion chamber; 2. Air inlet pipe; 3. Air outlet pipe; 4. Silencing pipe; 5. Silencing baffle; 6. Heat exchanger assembly; 61. First flow channel; 62. Second flow channel; 63. Flow channel plate; 64. Reinforcing rib; 65. Sub-flow channel; 67. Protrusion; 68. Heat exchanger bracket; 69. Heat exchanger tube;

[0036] 100. Radiator; 200. Cooling fan; 300. Heat dissipation atomization unit; 400. Heat exchange and noise reduction integrated device; 500. Exhaust fan; 600. Heat dissipation atomization control valve; 700. Exhaust valve; 800. Coolant control valve; 900. Exhaust atomization pipe; 1000. Fuel cell stack. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0038] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0041] like Figure 1 As shown, an embodiment of the present invention provides a heat exchange and noise reduction integrated device, including a heat exchange and noise reduction housing 1 and a heat exchange component 6. The heat exchange and noise reduction housing 1 is connected to an air inlet pipe 2 and an air outlet pipe 3 at its two ends in a first direction, and is connected to a heat exchange inlet 11 and a heat exchange outlet 12. The heat exchange component 6 is installed inside the heat exchange and noise reduction housing 1 and divides the inner cavity of the heat exchange and noise reduction housing 1 into a first expansion cavity communicating with the air inlet pipe 2 and a second expansion cavity 15 communicating with the air outlet pipe 3. The heat exchange component 6 has a first flow channel 61 and a second flow channel 62. The first expansion cavity and the second expansion cavity 15 are connected through the first flow channel 61. One end of the second flow channel 62 is connected to the heat exchange inlet 11 and the other end is connected to the heat exchange outlet 12.

[0042] The heat exchange and silencing integrated device 400 provided in this embodiment allows airflow to enter the first expansion cavity with a suddenly increased cross-sectional area through the air inlet pipe 2, and then enter the heat exchange component 6 for heat exchange. After heat exchange, the airflow enters the second expansion cavity 15 with a suddenly increased cross-sectional area, and interference silencing is achieved by multiple reflections of the airflow. Moreover, the heat exchange component 6 is set inside the heat exchange and silencing housing 1, realizing the integrated setting of heat exchange and silencing. The entire heat exchange and silencing integrated device 400 occupies little space, eliminates the connecting pipes required for the separate setting of heat exchanger and silencer in the prior art, reduces the number of parts, and lowers the cost.

[0043] In some embodiments, the heat exchange inlet 11 and the heat exchange outlet 12 are located at both ends of the heat exchange silencing shell 1 in the second direction, and the first direction is perpendicular to the second direction; a plurality of first flow channels 61 are provided, and the plurality of first flow channels 61 are distributed sequentially along the second direction.

[0044] like Figure 2 and Figure 3 As shown, the heat exchange assembly 6 includes a plurality of flow channel plates 63 arranged perpendicular to and spaced apart along the second direction. Each flow channel plate 63 has a sub-flow channel 65, and a first flow channel 61 is formed between two adjacent flow channel plates 63. The plurality of flow channel plates 63 arranged along the second direction are connected in sequence to form a wave-shaped second flow channel 62. By using the above-mentioned heat exchange assembly 6, the heat exchange area can be increased, and the heat exchange effect between the fluid in the first flow channel 61 and the fluid in the second flow channel 62 can be improved.

[0045] Optionally, the surface of the flow channel plate 63 is formed with a plurality of spaced protrusions 67. By providing the protrusions 67, the contact area between the flow channel plate 63 and the airflow can be increased and a turbulence effect can be provided, thereby improving the heat exchange effect. Exemplarily, the plurality of protrusions 67 are distributed in an array along a first direction and a second direction.

[0046] Optionally, a reinforcing rib 64 is provided in the first flow channel 61 between two adjacent flow channel plates 63, and the two ends of the reinforcing rib 64 are respectively connected to the two flow channel plates 63 in the second direction. This design can improve the structural strength of the flow channel plate 63.

[0047] In some other embodiments, such as Figure 4 and Figure 5 As shown, the heat exchange assembly 6 includes two heat exchange supports 68 and multiple heat exchange tubes 69. The two heat exchange supports 68 are spaced apart along a first direction and installed on the heat exchange and noise reduction housing 1. The heat exchange tubes 69 are disposed between the two heat exchange supports 68 and fixedly installed on the heat exchange supports 68. The heat exchange tubes 69 extend along the first direction, and the multiple heat exchange tubes 69 are spaced apart and sequentially connected to form a second flow channel 62. A first flow channel 61 is formed between the multiple heat exchange tubes 69. The heat exchange supports 68 are provided with a through hole that extends along the first direction and communicates with the first flow channel 61. Exemplarily, the multiple heat exchange tubes 69 are arranged in a circumferential and radial array along the heat exchange and noise reduction housing 1. Optionally, the surface of the heat exchange tubes 69 is provided with multiple spaced protrusions 67. The structure of this type of heat exchange tube 69 is similar in appearance to a corrugated pipe. By providing protrusions 67, the contact area between the heat exchange tubes 69 and the airflow can be increased and a turbulence effect can be achieved, thereby improving the heat exchange effect.

[0048] In some other embodiments, a sound-absorbing baffle 5 is provided inside the first expansion cavity, dividing the first expansion cavity into expansion cavity one 13 and expansion cavity two 14. The air inlet pipe 2 is connected to expansion cavity one 13, and expansion cavity two 14 is connected to the second expansion cavity 15 through the first flow channel 61. A sound-absorbing pipe 4 is provided on the sound-absorbing baffle 5, which is arranged to penetrate the sound-absorbing baffle 5 along a first direction. The sound-absorbing baffle 5 is provided with sound-absorbing holes, the diameter of which is smaller than the diameter of the sound-absorbing pipe 4. The airflow in the air inlet pipe 2 enters the expansion cavity two 14, which has a rapidly increasing cross-sectional area. The airflow in expansion cavity two 14 enters the expansion cavity one 13, which has a rapidly increasing cross-sectional area, through the sound-absorbing pipe 4. The airflow in expansion cavity one 13 enters the expansion cavity two 14, which has a rapidly increasing cross-sectional area, through the sound-absorbing holes, thereby increasing the number of airflow reflections and improving the noise reduction effect of interference silencing.

[0049] Optionally, the intake pipe 2 is installed through the sound-absorbing baffle 5, which serves to support the intake pipe 2 using the sound-absorbing baffle 5.

[0050] like Figure 6As shown, embodiments of the present invention also provide a fuel cell heat dissipation system and a fuel cell. The fuel cell includes a stack 1000 and the fuel cell heat dissipation system. The fuel cell heat dissipation system includes the aforementioned heat exchange and noise reduction integrated device 400, a radiator 100, a heat dissipation atomizing unit 300, and a induced flow fan 500. The intake pipe 2 is used as the exhaust port of the stack 1000. The heat exchange inlet 11 is connected to the coolant outlet of the stack 1000, and the heat exchange outlet 12 is connected to the coolant inlet of the stack 1000. The medium inlet of the radiator 100 is used to connect to the coolant outlet of the fuel cell stack 1000, and the medium outlet of the radiator 100 is used to connect to the coolant inlet of the stack 1000. The radiator 100 has an upstream side and a downstream side arranged opposite to each other. The cooling fan 200 enables airflow from the upstream side to the downstream side. The nozzle of the heat dissipation atomizing unit 300 is arranged facing the upstream side. The inlet of the induced flow fan 500 is connected to the exhaust pipe 3, and the outlet of the induced flow fan 500 is connected to the inlet of the heat dissipation atomizing unit 300.

[0051] It should be noted that the radiator 100 has multiple stacked heat dissipation fins, and an airflow channel is formed between two adjacent heat dissipation fins. The airflow direction within the airflow channel is from the upstream side to the downstream side. For example, the heat dissipation atomizing unit 300 is an atomizing nozzle.

[0052] The high-temperature coolant discharged from the fuel cell stack 1000 enters the radiator 100 and is cooled by the cooling fan 200. After the coolant in the radiator 100 is cooled down, it flows back into the fuel cell stack 1000 to cool the fuel cell stack 1000. If the cooling fan 200 cannot meet the heat dissipation requirements of the radiator 100, while the radiator 100 is being air-cooled by the cooling fan 200, a portion of the high-temperature coolant discharged from the fuel cell stack 1000 can be sent into the second flow channel 62 of the heat exchange and noise reduction integrated device 400, and the gas-water mixture discharged from the exhaust port of the fuel cell stack 1000 can be sent into the first flow channel 61 of the heat exchange and noise reduction integrated device 400. The high-temperature coolant discharged from the fuel cell stack 1000 can be used to heat up the gas-water mixture discharged from the exhaust port of the fuel cell stack 1000. The heated gas-water mixture is then sent by the induced draft fan 500 to the heat dissipation atomization unit 300 to atomize into water mist and spray it onto the surface of the radiator 100. This allows the water mist to absorb the heat emitted by the radiator 100. In addition, the cooling fan 200 enhances the air circulation around the radiator 100, which is conducive to the evaporation of water mist and the removal of heat from the radiator 100, thereby improving the cooling effect of the radiator 100. The gas-water mixture discharged from the exhaust port of the fuel cell stack 1000 is heated by the high-temperature coolant discharged from the fuel cell stack 1000 to form a high-temperature gas-water mixture. The high-temperature gas-water mixture is directly atomized by the heat dissipation atomization unit 300, which has a good atomization effect. Moreover, the water mist formed by atomization has a high temperature, which makes it easier for the water mist to evaporate after absorbing heat from the surface of the radiator 100, preventing the liquid water mist from accumulating on the surface of the radiator 100, thereby improving the cooling effect of the radiator 100.

[0053] Furthermore, the gas-water mixture discharged from the exhaust port of the fuel cell stack 1000 enters the first expansion chamber with a rapidly increasing cross-sectional area through the intake pipe 2, then enters the heat exchange component 6 for heat exchange and temperature increase, and then enters the second expansion chamber 15 with a rapidly increasing cross-sectional area. The interference noise reduction can be achieved by multiple reflections of the airflow, which plays a very good role in noise reduction.

[0054] In addition, the cooling fan 200 causes airflow from the upstream side to the downstream side, and the cooling atomizing unit 300 sprays water mist towards the upstream side of the radiator 100, so that the water mist can flow from the upstream side to the downstream side under the action of airflow, thereby improving the cooling effect of the radiator 100.

[0055] In some embodiments, the outlet of the second flow channel 62 is connected to the coolant inlet of the fuel cell stack 1000. While using the high-temperature coolant discharged from the fuel cell stack 1000 to heat the gas-water mixture discharged from the fuel cell stack 1000's exhaust port, the same process is achieved: using the gas-water mixture discharged from the fuel cell stack 1000's exhaust port to cool the high-temperature coolant discharged from the fuel cell stack 1000. Therefore, the coolant heated from the gas-water mixture discharged from the fuel cell stack 1000's exhaust port can be mixed with the coolant cooled by the radiator 100 and then sent into the fuel cell stack 1000. It should be noted that the outlet of the second flow channel 62 can also be connected to the medium inlet of the radiator 100, that is, the coolant heated from the gas-water mixture discharged from the fuel cell stack 1000's exhaust port and other coolant discharged from the fuel cell stack 1000's coolant outlet can be sent together into the radiator 100.

[0056] In some embodiments, the fuel cell cooling system further includes an exhaust pipe and an exhaust recirculation control valve assembly, the exhaust recirculation control valve assembly being able to control the outlet pipe 3 to selectively connect with the exhaust pipe or to the inlet of the cooling atomizing unit 300.

[0057] When the cooling fan 200 cannot meet the cooling requirements of the radiator 100, the exhaust pipe 3 can be connected to the inlet of the cooling atomizing unit 300 through the exhaust return control valve group. When the cooling fan 200 can meet the cooling requirements of the radiator 100, the exhaust pipe 3 can be connected to the exhaust pipe through the exhaust return control valve group, thereby directly discharging the gas-water mixture drained from the exhaust port of the fuel cell stack 1000 into the atmosphere or using it for other purposes.

[0058] Specifically, the exhaust recirculation control valve assembly includes a heat dissipation atomization control valve 600 and an exhaust valve 700. The heat dissipation atomization control valve 600 is located between the outlet of the induced draft fan 500 and the inlet of the heat dissipation atomization unit 300. The inlet of the exhaust valve 700 is connected between the inlet of the induced draft fan 500 and the exhaust pipe 3, and the outlet of the exhaust valve 700 is connected to the outside atmosphere. For example, both the heat dissipation atomization control valve 600 and the exhaust valve 700 are solenoid valves.

[0059] It should be noted that the exhaust return control valve group can also directly use a three-way valve. The inlet of the three-way valve is connected to the exhaust pipe 3, one outlet of the three-way valve is connected to the inlet of the induced draft fan 500, and the other outlet of the three-way valve is connected to the outside atmosphere.

[0060] In some embodiments, the fuel cell cooling system further includes a coolant control valve 800, which is located at the inlet of the second flow channel 62 and is a flow regulating valve.

[0061] When the coolant temperature at the coolant outlet of the fuel cell stack 1000 is too high, causing the cooling fan 200 to work alone and fail to meet the cooling requirements of the radiator 100, the coolant control valve 800 can be opened to send a portion of the coolant discharged from the coolant outlet of the fuel cell stack 1000 into the liquid-air heat exchanger. This heats the gas-water mixture discharged from the fuel cell stack 1000, thereby increasing the temperature of the water mist formed by atomization. This makes it easier for the water mist to evaporate after absorbing heat from the surface of the radiator 100, thus improving the cooling effect of the radiator 100.

[0062] Experiments revealed that heat dissipation gradually increased with increasing spray water temperature. By using a flow regulating valve 800 for the coolant control valve, the flow rate of coolant supplied to the liquid channel can be controlled. The higher the coolant temperature at the coolant outlet of the fuel cell stack 1000, the greater the flow rate of coolant supplied to the liquid channel. This improves the heat dissipation effect by increasing the temperature of the water mist sprayed onto the surface of the radiator 100.

[0063] In some embodiments, the pipe connecting the exhaust port of the fuel cell stack 1000 and the heat dissipation atomization inlet is an exhaust atomization pipe 900, which is an insulated pipe. Using a plastic pipe for the exhaust atomization pipe 900 provides insulation, reducing heat diffusion from the pipe itself into the surrounding air and preventing condensation of water vapor in the gas-water mixture. Exemplarily, the exhaust atomization pipe 900 is a plastic pipe. It should be noted that the exhaust atomization pipe 900 can also be made of other insulation materials or have an insulation layer installed on its inner or outer wall.

[0064] This embodiment also provides a fuel cell, including the aforementioned fuel cell cooling system. This fuel cell has the same beneficial effects as the aforementioned fuel cell cooling system, and will not be repeated here.

[0065] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. An integrated heat exchange and noise reduction device, characterized in that, include: Heat exchange silencer housing (1), the heat exchange silencer housing (1) is connected to an air inlet pipe (2) and an air outlet pipe (3) at both ends in the first direction, and the heat exchange silencer housing (1) is connected to a heat exchange inlet (11) and a heat exchange outlet (12). A heat exchange assembly (6) is installed inside the heat exchange silencing housing (1) and divides the inner cavity of the heat exchange silencing housing (1) into a first expansion cavity connected to the air inlet pipe (2) and a second expansion cavity (15) connected to the air outlet pipe (3); the heat exchange assembly (6) has a first flow channel (61) and a second flow channel (62), the first expansion cavity and the second expansion cavity (15) are connected through the first flow channel (61), one end of the second flow channel (62) is connected to the heat exchange inlet (11), and the other end is connected to the heat exchange outlet (12); The first flow channel (61) is provided in multiple ways, and the multiple first flow channels (61) are distributed sequentially along the second direction; The heat exchange assembly (6) includes a plurality of flow channel plates (63) that are perpendicular to the second direction and are distributed at intervals along the second direction. Each flow channel plate (63) has a sub-flow channel (65) and a first flow channel (61) is formed between two adjacent flow channel plates (63). Multiple flow channel plates (63) distributed along the second direction are connected in sequence to form a wave-shaped second flow channel (62). A reinforcing rib (64) is provided in the first flow channel (61) between two adjacent flow channel plates (63), and the reinforcing rib (64) is connected to the two flow channel plates (63) at both ends in the second direction respectively; The heat exchange assembly (6) includes: Two heat exchange brackets (68) are arranged at intervals along the first direction and installed on the heat exchange and sound-absorbing shell (1). A heat exchange tube (69) is disposed between two heat exchange supports (68) and fixedly installed on the heat exchange supports (68). The heat exchange tube (69) extends along the first direction and is provided in multiples. The multiple heat exchange tubes (69) are spaced apart and connected in sequence to form the second flow channel (62). The first flow channel (61) is formed between the multiple heat exchange tubes (69). The heat exchange support (68) is provided with a connecting hole that extends along the first direction and communicates with the first flow channel (61).

2. The integrated heat exchange and noise reduction device according to claim 1, characterized in that, The surface of the flow channel plate (63) has a plurality of spaced protrusions (67).

3. The integrated heat exchange and noise reduction device according to claim 1, characterized in that, The surface of the heat exchange tube (69) is provided with a plurality of spaced protrusions (67).

4. A fuel cell cooling system, characterized in that, Includes the heat exchange and noise reduction integrated device (400) as described in any one of claims 1 to 3, wherein the air inlet pipe (2) is used to connect to the exhaust port of the fuel cell stack (1000), the heat exchange inlet (11) is used to connect to the coolant outlet of the fuel cell stack (1000), and the heat exchange outlet (12) is used to connect to the coolant inlet of the fuel cell stack (1000); The fuel cell cooling system also includes: A radiator (100) has a medium inlet for connecting to the coolant outlet of a fuel cell stack (1000) and a medium outlet for connecting to the coolant inlet of the fuel cell stack (1000); the radiator (100) has an upstream side and a downstream side arranged opposite to each other along the airflow direction. A cooling fan (200) is provided that enables airflow from the upstream side to the downstream side; A heat dissipation atomization unit (300) is used to atomize water to form water mist and spray the water mist toward the upstream side; A duct fan (500) is provided, the inlet of which is connected to the outlet pipe (3), and the outlet of which is connected to the inlet of the heat dissipation atomizing unit (300).

5. The fuel cell heat dissipation system according to claim 4, characterized in that, The duct fan (500) is located inside the air inlet pipe (2).

6. A fuel cell, characterized in that, Includes the fuel cell cooling system as described in claim 4 or 5.

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