An apparatus for increasing the uniformity of a fuel cell sheet molding compound stock

Abstract

The utility model belongs to raw material battery production technical field, concretely is a kind of device that increases fuel cell mould pressing plate raw material uniformity, including mix even inner tube and mix even outer tube, the interlayer space between mix even outer tube and mix even inner tube is filled with heating liquid, mix even inner tube is connected with vacuumizing device by filter assembly, the filter assembly includes dust cloth bag for filtering raw material, in the utility model, by filling into heating liquid between mix even outer tube and mix even inner tube interlayer space, for heating the raw material in mix even inner tube, the mobility of raw material in mix even inner tube can be improved by heating raw material, it is favorable to improve the effect of mixing, the structural performance of raw material can be improved, reduce the agglomeration phenomenon, mix even inner tube is connected with vacuumizing device by filter assembly, prevent raw material oxidation, improve the purity of raw material, it is favorable to optimize the microstructure of raw material.

Description

Technical Field

[0001] This utility model relates to the field of raw material battery production technology, specifically a device for increasing the uniformity of raw materials in fuel cell molding plates. Background Technology

[0002] A fuel cell is an electrochemical cell that converts the chemical energy of fuel and oxidant into electrical energy through a redox reaction. In the fuel cell manufacturing process, the raw materials must first be mixed. During the production of fuel cell molding plates, the uniformity of the raw materials has a crucial impact on the performance of the molding plates. Existing production equipment has shortcomings in the raw material mixing and distribution stages, making it difficult to ensure uniform distribution of the raw materials within the molding plates. This leads to unstable performance of the molding plates, affecting the overall efficiency and lifespan of the fuel cell. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the prior art, this utility model provides a device for increasing the uniformity of raw materials for fuel cell molding plates.

[0004] An apparatus for increasing the uniformity of raw materials for fuel cell molding plates includes a mixing inner cylinder and a mixing outer cylinder, wherein a heated liquid is filled in the interlayer space between the mixing outer cylinder and the mixing inner cylinder, and the mixing inner cylinder is connected to a vacuum device via a filter assembly, the filter assembly including a dustproof cloth bag for filtering the raw materials.

[0005] Furthermore, the mixing outer cylinder is fixedly connected to the dual-channel rotary connector, which includes a dual-channel sealing column. The side wall of the dual-channel sealing column is provided with a liquid outlet and a liquid inlet. The dual-channel sealing column is provided with a hot channel and a cool channel parallel to its axis. The liquid outlet and the liquid inlet are respectively connected to the interlayer space through the cool channel and the hot channel.

[0006] Furthermore, the dual-channel sealing column is rotatably connected to the supporting column via bearings. Sealing rings are provided on both sides of the liquid outlet and liquid inlet on the outer wall of the dual-channel sealing column. A sealing sleeve is rotatably connected to the outer wall of the dual-channel sealing column via connecting bearings. An annular sealing heating channel is formed between the adjacent sealing rings, the dual-channel sealing column, and the sealing sleeve. The sealing sleeve is provided with a liquid outlet pipe and a liquid inlet pipe. The liquid outlet pipe and the liquid inlet pipe are respectively connected to the liquid outlet and the liquid inlet through their corresponding sealing heating channels.

[0007] Furthermore, the inlet pipe is connected to the heating box via a liquid pump, the outlet pipe is connected to the heating box via a pipe, and the heating box is equipped with a heater.

[0008] Furthermore, the dustproof bag is fitted onto the filter support, the filter support is connected to the vacuum pipe, the vacuum pipe is rotatably connected to the mixing inner cylinder via a rotary joint, the rotary joint is connected to the hollow rotating shaft, the hollow rotating shaft is fixedly connected to the mixing outer cylinder, the hollow rotating shaft is connected to the vacuum device via a pipe, and the central axis of the hollow rotating shaft coincides with the central axis of the dual-channel rotating connector.

[0009] Furthermore, a first bevel gear is sleeved on the hollow rotating shaft, the first bevel gear meshes with a second bevel gear, the second bevel gear is connected to a drive motor, the drive motor is fixedly mounted on the housing, and the hollow rotating shaft is rotatably connected to the housing through bearings.

[0010] Furthermore, the mezzanine space is divided into two relatively independent spaces by a baffle plate and a flow plate. The baffle plate is located between the hot channel and the cold channel. The baffle plate and the flow plate are arranged opposite to each other. The flow plate is provided with a plurality of connecting holes, which are used to connect the two relatively independent spaces in the mezzanine space.

[0011] Furthermore, the mixing outer cylinder has a sealing cap at the top opening and a discharge valve at the bottom opening.

[0012] Furthermore, the filter support is a hollow columnar structure, and ventilation holes are evenly distributed on the outer wall of the filter support.

[0013] Due to the adoption of the above technical solutions, the beneficial technical effects of this utility model are as follows: In this utility model, heating liquid is filled into the interlayer space between the mixing outer cylinder and the mixing inner cylinder to heat the raw materials in the mixing inner cylinder. Heating the raw materials can improve their fluidity in the mixing inner cylinder, which is beneficial to improving the mixing effect, improving the structural properties of the raw materials, and reducing agglomeration. The mixing inner cylinder is connected to a vacuum device through a filter assembly. The vacuum device helps to provide a vacuum state in the mixing inner cylinder, prevents the raw materials from oxidizing, improves the purity of the raw materials, and helps to optimize the microstructure of the raw materials. The dustproof bag can effectively filter the raw materials, and at the same time, gas and water vapor can be discharged through the dustproof bag and the vacuum device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a device for increasing the uniformity of raw materials in fuel cell molding plates according to the present invention;

[0015] Figure 2 This is a front view of a device for increasing the uniformity of raw materials in fuel cell molding plates according to the present invention;

[0016] Figure 3 This is a top view of a device for increasing the uniformity of raw materials in fuel cell molding plates according to the present invention;

[0017] Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0018] Figure 5 This utility model Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0019] Figure 6 This utility model Figure 4 Enlarged schematic diagram of region E in the middle;

[0020] Figure 7 This is a schematic diagram of the structure of the filter assembly in this utility model;

[0021] Figure 8 This is a cross-sectional structural diagram of the filter assembly in this utility model;

[0022] Figure 9 This is a schematic diagram of the structure of the dual-channel rotary connector in this utility model;

[0023] Figure 10 This is a side view of the dual-channel rotary connector in this utility model;

[0024] Figure 11 This utility model Figure 10 A schematic diagram of the cross-sectional structure along the CC direction;

[0025] Figure 12 This utility model Figure 10 Schematic diagram of the cross-sectional structure in the DD direction;

[0026] Figure 13 This is an exploded structural diagram of the dual-channel rotary connector in this utility model.

[0027] In the diagram: 1. Inner mixing cylinder; 2. Outer mixing cylinder; 3. Interlayer space; 4. Dustproof bag; 5. Double-channel rotary connector; 51. Double-channel sealing column; 52. Liquid outlet; 53. Liquid inlet; 54. Hot channel; 55. Cool channel; 56. Sealing ring; 57. Sealing sleeve; 571. Liquid outlet pipe; 572. Liquid inlet pipe; 58. Connecting bearing; 59. Sealed heating channel; 6. Support column; 7. Liquid pump; 8. Heating box; 9. Heater; 10. Filter support; 11. Vacuum pipe; 12. Rotary joint; 13. Hollow rotating shaft; 14. Vacuum device; 15. First bevel gear; 16. Second bevel gear; 17. Drive motor; 18. Box body; 19. Baffle plate; 20. Flow plate; 21. Connecting hole; 22. Sealing cover; 23. Discharge valve; 24. Ventilation hole. Detailed Implementation

[0028] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0029] according to Figure 1-13 As shown, an apparatus for increasing the uniformity of raw materials for fuel cell molding plates includes a mixing inner cylinder 1 and a mixing outer cylinder 2. The interlayer space 3 between the mixing outer cylinder 2 and the mixing inner cylinder 1 is filled with heated liquid. The mixing inner cylinder 1 is connected to a vacuum device 14 through a filter assembly, and the filter assembly includes a dustproof cloth bag 4 for filtering the raw materials.

[0030] In the above specific technical solution, heating liquid is filled into the interlayer space 3 between the mixing outer cylinder 2 and the mixing inner cylinder 1 to heat the raw materials in the mixing inner cylinder 1. Heating the raw materials can improve their fluidity in the mixing inner cylinder 1, which is beneficial to improving the mixing effect, improving the structural properties of the raw materials, and reducing agglomeration. The mixing inner cylinder 1 is connected to the vacuum device 14 through a filter assembly. The vacuum device 14 helps to provide a vacuum state in the mixing inner cylinder 1, prevents the raw materials from oxidizing, improves the purity of the raw materials, and helps to optimize the microstructure of the raw materials. The dustproof bag 4 can effectively filter the raw materials, and at the same time, gas and water vapor can be discharged through the dustproof bag 4 and the vacuum device 14.

[0031] The mixing outer cylinder 2 is fixedly connected to the dual-channel rotary connector 5. The dual-channel rotary connector 5 includes a dual-channel sealing column 51. The side wall of the dual-channel sealing column 51 is provided with a liquid outlet 52 and a liquid inlet 53. The dual-channel sealing column 51 is provided with a hot channel 54 and a cool channel 55 parallel to its axis. The liquid outlet 52 and the liquid inlet 53 are respectively connected to the interlayer space 3 through the cool channel 55 and the hot channel 54.

[0032] The dual-channel sealing column 51 is rotatably connected to the supporting column 6 via a bearing. Sealing rings 56 are provided on both sides of the liquid outlet 52 and the liquid inlet 53 on the outer wall of the dual-channel sealing column 51. A sealing sleeve 57 is rotatably connected to the outer wall of the dual-channel sealing column 51 via a connecting bearing 58. An annular sealing heating channel 59 is formed between the adjacent sealing rings 56, the dual-channel sealing column 51, and the sealing sleeve 57. The sealing sleeve 57 is provided with a liquid outlet pipe 571 and a liquid inlet pipe 572. The liquid outlet pipe 571 and the liquid inlet pipe 572 are respectively connected to the liquid outlet 52 and the liquid inlet 53 through their corresponding sealing heating channels 59.

[0033] The liquid inlet pipe 572 is connected to the heating box 8 via the liquid pump 7, and the liquid outlet pipe 571 is connected to the heating box 8 via a pipe. The heating box 8 is equipped with a heater 9.

[0034] In the above specific technical solution, the heating box 8 heats the liquid, preferably oil. The heater 9 in the heating box 8 heats the oil. After reaching the specified temperature, the liquid pump 7 works to deliver the heated oil to the inlet pipe 572 and into the sealed heating channel 59. The sealed heating channel 59 is provided with sealing rings 56 at both ends to form a sealed environment. Therefore, the heated oil will enter the hot channel 54 through the inlet hole 53 and then flow into the interlayer space 3. Preferably, the mixing inner cylinder 1 is provided with a temperature sensor. When the temperature of the mixing inner cylinder 1 drops to a certain range, the liquid pump 7 continues to input hot oil into the interlayer space 3. The hot oil in the interlayer space 3, whose temperature has dropped, flows from the outlet hole 52 through the cooling channel 55 into the sealed heating channel 59, and then returns to the heating box 8 through the outlet pipe 571, realizing the circulation of the heated oil and ensuring the continuous heating of the raw materials in the mixing inner cylinder 1.

[0035] It is worth noting that the sealed heating channel 59 connected to the liquid inlet 53 and the sealed heating channel 59 connected to the liquid outlet 52 are two relatively independent annular channels that separate the hot oil and the cold oil.

[0036] In practical use, the support column 6 is connected to the double-channel sealing column 51 through a bearing, providing support for the double-channel sealing column 51. The mixing outer cylinder 2 is fixedly connected to the double-channel sealing column 51. During the rotation of the mixing outer cylinder 2, the double-channel sealing column 51 is driven to rotate. The double-channel sealing column 51 and the sealing sleeve 57 are rotatably connected through the connecting bearing 58. The sealing sleeve 57 is fixedly installed on the support column 6, thereby ensuring that the liquid inlet and outlet directions of the liquid outlet pipe 571 and the liquid inlet pipe 572 remain unchanged, which is beneficial to the circulation of heating oil.

[0037] The dustproof bag 4 is fitted onto the filter support 10. The filter support 10 is connected to the vacuum pipe 11. The vacuum pipe 11 is rotatably connected to the mixing inner cylinder 1 via a rotary joint 12. The rotary joint 12 is connected to the hollow rotating shaft 13. The hollow rotating shaft 13 is fixedly connected to the mixing outer cylinder 2. The hollow rotating shaft 13 is connected to the vacuum device 14 via a pipe. The central axis of the hollow rotating shaft 13 coincides with the central axis of the dual-channel rotating connector 5.

[0038] The filter support 10 is a hollow columnar structure, and ventilation holes 24 are evenly distributed on the outer wall of the filter support 10.

[0039] In the above specific technical solution, the dustproof bag 4 is fitted onto the filter support 10. The top of the dustproof bag 4 is provided with a fastening ring to tightly fasten the dustproof bag 4 onto the filter support 10. The filter support 10 is a hollow columnar structure that provides air intake space for the dustproof bag 4. After the raw material is added into the mixing inner cylinder 1, the feed port is closed, the vacuum device 14 is started, and the vacuum pump starts to work, gradually extracting the air from the mixing inner cylinder 1 so that the mixing inner cylinder 1 reaches the set vacuum degree. During the vacuuming process, the changes in the value of the vacuum gauge are closely observed to ensure that the vacuum degree meets the requirements. The vacuum degassing time generally lasts for 10-30 minutes to fully remove the gas and volatile impurities in the raw material.

[0040] A first bevel gear 15 is sleeved on the hollow rotating shaft 13. The first bevel gear 15 meshes with a second bevel gear 16, which is connected to a drive motor 17. The drive motor 17 is fixedly mounted on the housing 18. The hollow rotating shaft 13 is rotatably connected to the housing 18 via bearings. By starting the drive motor 17, the inner mixing cylinder 1 and the outer mixing cylinder 2 are rotated.

[0041] In the actual operation, the liquid pump 7 begins to heat the raw materials in the mixing inner cylinder 1, while the drive motor 17 rotates the cylinder. Initially, the rotation speed is set to a low value to allow the raw materials to mix gently under stirring conditions. As the temperature gradually increases, the rotation speed is gradually increased according to changes in the flowability of the raw materials, promoting the uniformity of graphite particles. Throughout the stirring process, the intelligent temperature control system continuously monitors and adjusts the temperature inside the mixing tank, maintaining it within a set range. The drive motor 17 adjusts the stirring speed as needed based on the uniformity of the raw materials and process requirements.

[0042] The interlayer space 3 is divided into two relatively independent spaces by a baffle plate 19 and a flow plate 20. The baffle plate 19 is located between the hot channel 54 and the cool channel 55. The baffle plate 19 and the flow plate 20 are arranged opposite to each other. The flow plate 20 is provided with multiple connecting holes 21, which are used to connect the two relatively independent spaces in the interlayer space 3. The baffle plate 19 is located on both sides of the hot channel 54 and the cool channel 55. The heating liquid enters the interlayer space 3 through the hot channel 54 to heat the raw materials in the mixing inner cylinder 1. During the continuous introduction of the heating liquid, the heating liquid first passes through the half of the interlayer space 3 closest to the hot channel 54, then flows into the half of the interlayer space 3 closest to the cool channel 55, and then flows out through the cool channel 55, ensuring sufficient flow of the heating liquid in the interlayer space 3.

[0043] The mixing outer cylinder 2 has a sealing cover 22 at the top opening and a discharge valve 23 at the bottom opening. Preferably, both the sealing cover 22 and the discharge valve 23 have sealing structures, and a sealing gasket is provided at the connection with the mixing inner cylinder 1.

[0044] The above embodiments are merely exemplary embodiments of the present utility model and are not intended to limit the present utility model. The scope of protection of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present utility model.

Claims

1. An apparatus for increasing the uniformity of raw materials for fuel cell molding plates, comprising a mixing inner cylinder (1) and a mixing outer cylinder (2), characterized in that, The space (3) between the mixing outer cylinder (2) and the mixing inner cylinder (1) is filled with heated liquid. The mixing inner cylinder (1) is connected to the vacuum device (14) through a filter assembly. The filter assembly includes a dustproof bag (4) for filtering raw materials.

2. The device for increasing the uniformity of raw materials for fuel cell molding plates according to claim 1, characterized in that, The mixing outer cylinder (2) is fixedly connected to the dual-channel rotary connector (5). The dual-channel rotary connector (5) includes a dual-channel sealing column (51). The side wall of the dual-channel sealing column (51) is provided with a liquid outlet (52) and a liquid inlet (53). The dual-channel sealing column (51) is provided with a hot channel (54) and a cool channel (55) parallel to its axis. The liquid outlet (52) and the liquid inlet (53) are respectively connected to the interlayer space (3) through the cool channel (55) and the hot channel (54).

3. The apparatus for increasing the uniformity of raw materials for fuel cell molding plates according to claim 2, characterized in that, The dual-channel sealing column (51) is rotatably connected to the support column (6) via a bearing. On the outer wall of the dual-channel sealing column (51), sealing rings (56) are provided on both sides of the liquid outlet (52) and the liquid inlet (53). The outer wall of the dual-channel sealing column (51) is rotatably connected to a sealing sleeve (57) via a connecting bearing (58). An annular sealing heating channel (59) is formed between the adjacent sealing rings (56), the dual-channel sealing column (51), and the sealing sleeve (57). The sealing sleeve (57) is provided with a liquid outlet pipe (571) and a liquid inlet pipe (572). The liquid outlet pipe (571) and the liquid inlet pipe (572) are respectively connected to the liquid outlet (52) and the liquid inlet (53) via their corresponding sealing heating channels (59).

4. The apparatus for increasing the uniformity of raw materials for fuel cell molded plates according to claim 3, characterized in that, The inlet pipe (572) is connected to the heating box (8) via a liquid pump (7), and the outlet pipe (571) is connected to the heating box (8) via a pipe. The heating box (8) is equipped with a heater (9).

5. The apparatus for increasing the uniformity of raw materials for fuel cell molded plates according to claim 1, characterized in that, The dustproof bag (4) is fitted onto the filter support (10). The filter support (10) is connected to the vacuum pipe (11). The vacuum pipe (11) is rotatably connected to the mixing inner cylinder (1) through a rotary joint (12). The rotary joint (12) is connected to the hollow rotating shaft (13). The hollow rotating shaft (13) is fixedly connected to the mixing outer cylinder (2). The hollow rotating shaft (13) is connected to the vacuum device (14) through a pipe. The central axis of the hollow rotating shaft (13) coincides with the central axis of the dual-channel rotating connector (5).

6. The apparatus for increasing the uniformity of raw materials for fuel cell molded plates according to claim 5, characterized in that, A first bevel gear (15) is sleeved on the hollow shaft (13). The first bevel gear (15) meshes with a second bevel gear (16). The second bevel gear (16) is connected to a drive motor (17). The drive motor (17) is fixedly installed on the housing (18). The hollow shaft (13) is rotatably connected to the housing (18) through a bearing.

7. The apparatus for increasing the uniformity of raw materials for fuel cell molded plates according to claim 6, characterized in that, The interlayer space (3) is divided into two relatively independent spaces by a baffle plate (19) and a flow plate (20). The baffle plate (19) is located between the hot channel (54) and the cool channel (55). The baffle plate (19) and the flow plate (20) are set opposite to each other. The flow plate (20) is provided with a plurality of connecting holes (21). The connecting holes (21) are used to connect the two relatively independent spaces in the interlayer space (3).

8. The apparatus for increasing the uniformity of raw materials for fuel cell molded plates according to claim 6, characterized in that, The mixing outer cylinder (2) has a sealing cap (22) at the top opening and a discharge valve (23) at the bottom opening.

9. The apparatus for increasing the uniformity of raw materials for fuel cell molded plates according to claim 6, characterized in that, The filter support (10) is a hollow columnar structure, and ventilation holes (24) are evenly distributed on the outer wall of the filter support (10).

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