Temperature control type gas-water separator and fuel cell assembly with same

Abstract

The utility model relates to the field of fuel cells, in particular to a temperature control type gas-water separator and a fuel cell assembly with the same, the temperature control type gas-water separator comprises a gas-water separator body, the gas-water separator body comprises a gas-water separator shell, and a gas-water separator back plate is arranged on the gas-water separator shell; an air cooling mechanism is arranged on a back plate of the gas-water separator; the air cooling mechanism comprises a cooling fan arranged on a back plate of the gas-water separator; according to the gas-water separator disclosed by the utility model, effective heat exchange is carried out between the cover plate baffle and the outer wall of the cover plate and internal hydrogen, meanwhile, the radiating power is controlled by the radiating fins of the outer cover plate through the fan, and the internal temperature is jointly controlled through the temperature sensor; through the measures, the moisture temperature can be effectively controlled, and when the hydrogen humidity is too high, the temperature is reduced to separate more water; and when higher humidity is needed, heat dissipation can be reduced, so that more hydrogen moisture enters the fuel cell.

Description

Technical Field

[0001] The utility model relates to the field of fuel cells, in particular to a temperature-controlled gas-water separator and a fuel cell assembly with the gas-water separator. Background Art

[0002] Proton exchange membrane fuel cell (PEMFC) is one of the most promising and popular fuel cell technologies. It has many advantages such as no pollution, high energy conversion rate, short charging time, low operating temperature and low noise. It can be widely used in many fields such as transportation vehicles, cogeneration, fixed base stations, mobile portable devices, drones, military equipment, etc.

[0003] Hydrothermal management of fuel cells has always been a key issue in this field. During operation, it is particularly necessary to control the humidity and liquid water volume at the anode inlet to ensure reasonable humidification inside the fuel cell while reducing the risk of flooding.

[0004] The existing gas-water separator realizes gas-water separation directly through fluid action. In the labyrinth structure of a gas-water separator for a fuel cell disclosed in patent CN113745582B, the separation efficiency is increased by using a labyrinth structure.

[0005] Since gas humidity is closely related to temperature control, existing technologies cannot achieve temperature control of the gas-water separator, resulting in the inability to regulate the intake air humidity, thereby affecting the fuel cell's water and heat management and even causing fuel cell flooding.

[0006] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing gas-water separator. Utility Model Content

[0007] The purpose of the utility model is to provide a novel temperature-controlled gas-water separator capable of controlling the humidity of fuel cell intake air according to needs.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A temperature-controlled gas-water separator comprises a gas-water separator body, wherein the gas-water separator body comprises a gas-water separator shell, and the gas-water separator shell is provided with a gas-water separator back plate;

[0010] An air cooling mechanism is provided on the back plate of the gas-water separator;

[0011] The air cooling mechanism includes a heat dissipation fan arranged on the back plate of the air-water separator.

[0012] The back plate of the gas-water separator is also provided with a fin mechanism; the fin mechanism includes a plurality of heat dissipation fins arranged on the back plate of the gas-water separator.

[0013] Adjacent heat dissipation fins are arranged in parallel and at intervals.

[0014] The cooling fan covers the fin mechanism; the cooling fan is connected to the air-water separator back plate through a connecting component, and the connecting component includes a connecting column arranged on the air-water separator back plate; the cooling fan is connected to the connecting column through a fastener.

[0015] The heat dissipation fan is connected to the back plate of the air-water separator through a plurality of connecting components, and each of the connecting components is distributed on the periphery of the fin mechanism.

[0016] The gas-water separator back plate includes a back plate body, a cover plate outer wall is provided on the back plate body, and a cover plate baffle for gas-water separation is provided inside the cover plate outer wall;

[0017] The gas-water separator housing comprises an annular housing, and the annular housing is provided with a fitting flange;

[0018] The area of ​​the outer wall of the cover plate is smaller than the area of ​​the back plate body;

[0019] The back plate body of the gas-water separator back plate is fitted on the fitting flange.

[0020] A fuel cell assembly comprises an end plate, on which the temperature-controlled gas-water separator is provided.

[0021] The advantages of the present invention are:

[0022] The utility model discloses a temperature-controlled gas-water separator and a fuel cell assembly with the gas-water separator.

[0023] The gas-water separator disclosed by the utility model effectively exchanges heat with internal hydrogen through the cover baffle and the cover outer wall. At the same time, the external cover heat dissipation fins control the heat dissipation power through the fan and the internal temperature is controlled jointly by the temperature sensor.

[0024] The above measures can effectively control the moisture temperature. When the hydrogen humidity is too high, the temperature can be lowered to separate more water. When higher humidity is required, heat dissipation can be reduced to allow more hydrogen moisture to enter the fuel cell. Based on the above design, humidity control of the hydrogen path of the fuel cell stack can be easily achieved, thereby providing better operating conditions for the fuel cell stack. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following is a brief description of the contents and marks in the drawings of the utility model specification:

[0026] Figure 1 It is a structural diagram of the present utility model.

[0027] Figure 2 This is an exploded view of the present invention.

[0028] Figure 3 This is a front view of the back plate of the gas-water separator of the present utility model.

[0029] Figure 4 It is a rear view of the back plate of the gas-water separator of the present utility model.

[0030] Figure 5 It is an axonometric drawing of the shell of the gas-water separator of the present utility model.

[0031] The marks in the above figure are:

[0032] 1. Air-water separator back plate, 2. Air-water separator housing, 3. Fin mechanism, 4. Cooling fan, 5. Connecting parts, 6. Temperature sensor. DETAILED DESCRIPTION

[0033] The following describes the preferred embodiment with reference to the accompanying drawings to further illustrate the specific implementation of the present invention.

[0034] A temperature-controlled gas-water separator comprises a gas-water separator body, the gas-water separator body comprises a gas-water separator shell 2, a gas-water separator back plate 1 is provided on the gas-water separator shell 2; an air cooling mechanism is provided on the gas-water separator back plate 1; the air cooling mechanism comprises a cooling fan 4 provided on the gas-water separator back plate 1; the gas-water separator back plate 1 comprises a back plate body 11, a cover plate outer wall 12 is provided on the back plate body 11, and a cover plate baffle 13 for gas-water separation is provided inside the cover plate outer wall 12; the utility model discloses The gas-water separator effectively exchanges heat with the internal hydrogen through the cover baffle 13 and the cover outer wall 12. At the same time, the external cover heat dissipation fins 31 control the heat dissipation power through the fan, and the internal temperature is jointly controlled by the temperature sensor 6. The above measures can effectively control the water temperature, and when the hydrogen humidity is too high, the temperature can be lowered to separate more water; when higher humidity is required, the heat dissipation can be reduced to allow more hydrogen moisture to enter the fuel cell; based on the above design, the humidity control of the hydrogen path of the fuel cell stack can be easily achieved, thereby providing better operating conditions for the fuel cell stack.

[0035] specific;

[0036] The temperature-controlled gas-water separator disclosed by the utility model can control the temperature inside the gas-water separator by setting an air cooling mechanism; in subsequent use, when the humidity of hydrogen is too high, the temperature can be lowered to separate more water; when higher humidity is required, heat dissipation can be reduced to allow more hydrogen water to enter the fuel cell; thereby, the humidity of the incoming gas can be effectively controlled.

[0037] In the utility model, the temperature-controlled gas-water separator includes a gas-water separator body, which includes a gas-water separator shell 2, and a gas-water separator back plate 1 is provided on the gas-water separator shell 2; the gas-water separator shell 2 and the gas separator cover plate constitute the main structure of the gas-water separator. In the utility model, the gas-water separator shell 2 and the gas-water separator back plate 1 are both hollow in design, which facilitates the arrangement and placement of other components inside the gas-water separator.

[0038] In the utility model, an air cooling mechanism is provided on the back plate 1 of the air-water separator; the setting of the air cooling mechanism can optimize the heat dissipation effect of the air-water separator. In subsequent use, the air-water separation effect can be optimized according to whether the temperature in the air-water separator needs to be controlled.

[0039] In the utility model, the air cooling mechanism includes a cooling fan 4 provided on the back plate 1 of the gas-water separator; the use of the cooling fan 4 can change the heat exchange efficiency of the gas-water separator by controlling whether the cooling fan 4 is started and the wind speed, so that the heat dissipation power can be controlled by the fan, and the internal temperature of the gas-water separator can be jointly controlled by the temperature sensor 6; the above measures can effectively control the water temperature, and when the hydrogen humidity is too high, the temperature can be lowered to separate more water; when higher humidity is required, the heat dissipation can be reduced to allow more hydrogen moisture to enter the fuel cell.

[0040] In addition, in the utility model, the gas-water separator back plate 1 includes a back plate body 11, a cover plate outer wall 12 is provided on the back plate body 11, and a cover plate baffle 13 for gas-water separation is provided inside the cover plate outer wall 12; in the utility model, the back plate body 11 is a plate structure as a whole, and a cover plate outer wall 12 is provided on the back plate body 11, and the cover plate outer wall 12 is a ring-shaped structure; an internal space is formed to facilitate the subsequent arrangement of the cover plate baffle 13, and at the same time, a plurality of cover plate baffles 13 are provided in the cover plate outer wall 12, and the plurality of cover plate baffles 13 are staggered; in the utility model, the cover plate baffle 13 acts as a blocking plate structure, and when used subsequently, the gas and water are separated based on the wall impact effect; the water formed by condensation is discharged from the drain outlet 25 below the gas-water separator.

[0041] In the present invention, a gas inlet 24, a gas outlet 23, a drain port 25 and a sensor mounting port 26 are provided on the gas-water separator body; the gas inlet 24 is used for the gas to be treated to enter the gas-water separator, and the gas outlet 23 is used for the discharge of the treated gas, while the drain port 25 is used to discharge the condensed and separated water from the gas-water separator to the outside of the gas-water separator; the sensor mounting port 26 is used to install a temperature sensor 6; at the same time, in the present invention, the gas inlet 24, the gas outlet 23, the drain port 25 and the sensor mounting port 26 are all arranged through the gas-water separator shell 2 and the gas-water separator back plate 1 at the same time.

[0042] In the present invention, a fin mechanism 3 is further provided on the gas-water separator back plate 1; the fin mechanism 3 includes a plurality of heat dissipation fins 31 provided on the gas-water separator back plate 1; the provision of the heat dissipation fins 31 can effectively increase the heat dissipation efficiency of the gas-water separator back plate 1.

[0043] At the same time, in the present invention, adjacent heat dissipation fins 31 are arranged in parallel at intervals; in the present invention, based on such an arrangement, the contact area between the fin mechanism 3 and the outside of the gas-water separator can be further increased, thereby better optimizing the heat dissipation effect.

[0044] Furthermore, in the present invention, the heat dissipation fan 4 is covered on the fin mechanism 3; based on such a setting, the heat dissipated through the fin mechanism 3 can be quickly discharged through the heat dissipation fan 4, thereby optimizing the heat dissipation effect.

[0045] In the present invention, the cooling fan 4 is connected to the air-water separator back plate 1 through a connecting component 5, and the connecting component 5 includes a connecting column 51 arranged on the air-water separator back plate 1; the cooling fan 4 is connected to the connecting column 51 through a fastener; the setting of the connecting component 5 facilitates the installation and arrangement of the cooling fan 4 on the air-water separator back plate 1; the connecting column 51 plays a supporting role, and the fastener can be a fastening screw or a connecting screw. Based on such a setting, the connection between the cooling fan 4 and the air-water separator back plate 1 is facilitated.

[0046] Furthermore, in the present invention, the cooling fan 4 is connected to the air-water separator back plate 1 through multiple connecting components 5. Such an arrangement ensures the stable installation of the cooling fan 4 on the air-water separator back plate 1. At the same time, in the present invention, each of the connecting components 5 is distributed on the periphery of the fin mechanism 3. Based on such an arrangement, the cooling fan 4 can better cover the fin mechanism 3.

[0047] Furthermore, in the utility model, the gas-water separator back plate 1 includes a back plate body 11, a cover plate outer wall 12 is provided on the back plate body 11, and a cover plate baffle 13 for gas-water separation is provided inside the cover plate outer wall 12; the gas-water separator shell 2 includes an annular shell, and a fitting flange is provided on the annular shell; the back plate body 11 in the gas-water separator back plate 1 is fitted on the fitting flange; the utility model is based on the above design, and in subsequent use, the cover plate outer wall 12 is inserted into the annular shell, and the back plate body 11 is fitted on the fitting flange, and the two are subsequently connected by screws or bolts; in order to ensure sealing, a sealing gasket is provided at the fitting position of the back plate body 11 and the fitting flange.

[0048] At the same time, the present invention requires that the area of ​​the cover plate outer wall 12 is smaller than the area of ​​the back plate body 11; the cover plate outer wall 12 is located in the central area of ​​the back plate body 11. Based on this setting, the vertical cross-section of the gas-water separator back plate 1 is T-shaped, which facilitates the installation and positioning between the gas-water separator back plate 1 and the gas-water separator shell 2.

[0049] A fuel cell assembly comprises an end plate, on which the temperature-controlled gas-water separator is provided.

[0050] specific:

[0051] The utility model discloses a temperature-controlled gas-water separator, comprising a gas-water separator body, wherein the gas-water separator body comprises a gas-water separator shell 2, and the gas-water separator shell 2 is provided with a gas-water separator backplate 1; by adding heat dissipation fins 31 to the gas-water separator backplate 1, the utility model backplate body 11, the backplate outer wall and the cover plate baffle 13 are designed as an integrated structure, which is an integrated molding structure, and heat is dissipated by an external heat dissipation fan 4 through the heat dissipation fins 31, and the fan speed can be adjusted by feedback from a temperature sensor 6 to perform temperature control; the problem that the anode humidity and drainage efficiency cannot be regulated is solved.

[0052] A temperature-controllable gas-water separator for a fuel cell comprises a gas-water separator back plate 1, a gas-water separator housing 2, a temperature sensor 6 and a cooling fan 4; the gas-water separator back plate 1 comprises a back plate body 11, a back plate outer wall and a cover plate baffle 13.

[0053] The utility model has at least one of the following advantages:

[0054] The utility model provides a temperature-controlled gas-water separator, in which the cover baffle 13 and the cover outer wall 12 effectively exchange heat with the internal hydrogen, while the heat dissipation fins 31 control the heat dissipation power through the fan and the internal temperature is jointly controlled by the temperature sensor 6.

[0055] The above measures can effectively control the water temperature. When the hydrogen humidity is too high, the temperature can be lowered to separate more water. When higher humidity is required, heat dissipation can be reduced to allow more hydrogen moisture to enter the fuel cell.

[0056] The utility model has a simple structure and can easily realize humidity control of the hydrogen path of the fuel cell stack, thereby providing better operating conditions for the fuel cell stack.

[0057] The temperature-controlled gas-water separator disclosed in the present utility model mainly includes a gas-water separator back plate 1, a gas-water separator shell 2, a temperature sensor 6 and a cooling fan 4; the cover plate outer wall 12 and the cover plate baffle 13 are embedded in the gas-water separator shell, and are used to separate gas and water and exchange heat with internal gas, and the cover plate cooling fins 31 are placed on the outside of the gas-water separator back plate 1, and heat is dissipated by the cooling fan 4.

[0058] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A temperature-controlled gas-water separator, characterized in that: It includes an air-water separator body, the air-water separator body includes an air-water separator shell, and the air-water separator shell is provided with an air-water separator back plate; An air cooling mechanism is provided on the back plate of the gas-water separator; The air cooling mechanism includes a heat dissipation fan arranged on the back plate of the air-water separator; The back plate of the gas-water separator comprises a back plate body, a cover plate outer wall is provided on the back plate body, and a cover plate baffle for gas-water separation is provided inside the cover plate outer wall.

2. A temperature-controlled gas-water separator according to claim 1, characterized in that: The back plate of the gas-water separator is also provided with a fin mechanism; the fin mechanism includes a plurality of heat dissipation fins arranged on the back plate of the gas-water separator.

3. A temperature-controlled gas-water separator according to claim 2, characterized in that: Adjacent heat dissipation fins are arranged in parallel and at intervals.

4. A temperature-controlled gas-water separator according to claim 2, characterized in that: The cooling fan covers the fin mechanism; the cooling fan is connected to the air-water separator back plate through a connecting component, and the connecting component includes a connecting column arranged on the air-water separator back plate; the cooling fan is connected to the connecting column through a fastener.

5. A temperature-controlled gas-water separator according to claim 4, characterized in that: The heat dissipation fan is connected to the back plate of the air-water separator through a plurality of connecting components, and each of the connecting components is distributed on the periphery of the fin mechanism.

6. The temperature-controlled gas-water separator according to claim 1, characterized in that: The gas-water separator housing comprises an annular housing, and the annular housing is provided with a fitting flange; The area of ​​the outer wall of the cover plate is smaller than the area of ​​the back plate body; The back plate body of the gas-water separator back plate is fitted on the fitting flange.

7. A fuel cell assembly, characterized in that: It comprises an end plate, on which is provided the temperature-controlled gas-water separator according to any one of claims 1 to 6.

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