CN114464820B - Equipment for fuel cell GDL hydrophobic process - Google Patents
Equipment for fuel cell GDL hydrophobic process Download PDFInfo
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- CN114464820B CN114464820B CN202210363000.2A CN202210363000A CN114464820B CN 114464820 B CN114464820 B CN 114464820B CN 202210363000 A CN202210363000 A CN 202210363000A CN 114464820 B CN114464820 B CN 114464820B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/8807—Gas diffusion layers
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses equipment for a fuel cell GDL (gas diffusion layer) dewatering process, which relates to the field of clean energy and comprises a solution pool, wherein the inner cavity of the solution pool is rotatably provided with a plurality of vacuum adsorption rollers and a roller, the outer side of the solution pool is provided with a power mechanism, and the upper end surface of the solution pool is provided with a dewatering mechanism; the surface of the vacuum adsorption roller sequentially passes through GDL materials; the device comprises a material feeding device, a traction dewatering mechanism, a baking device, a traction discharging mechanism, a winding device and two density measuring instruments, wherein the material feeding device, the traction dewatering mechanism, the baking device, the traction discharging mechanism and the winding device are sequentially arranged in the moving direction of the GDL material; the water repellency and the water repellency uniformity of the GDL material are shown by comparing the difference of the surface densities detected by two density measuring instruments. The invention effectively permeates the hydrophobic liquid into the GDL material, reduces the hydrophobic time of the GDL material, has good hydrophobic uniformity within +/-1 percent, and has high production efficiency and good hydrophobic effect.
Description
Technical Field
The invention relates to the field of clean energy, in particular to equipment for a GDL (gas diffusion layer) hydrophobic process of a fuel cell.
Background
Proton exchange membrane fuel cell is a novel clean energy use technique, because it can produce the water of liquid in the course of the work, consequently, require fuel cell's gas diffusion layer to possess certain hydrophobic property, in the prior art, proton exchange membrane fuel cell generally adopts GDL carbon paper as the basic material of gas diffusion layer, however GDL carbon paper does not possess hydrophobic property, consequently, need to carry out hydrophobic treatment to GDL carbon paper, current GDL carbon paper hydrophobic method generally adopts hydrophobic methods such as ordinary pressure spraying, ordinary pressure flooding, supersound flooding, often use laboratory paraphernalia to carry out the production of experimental nature, the production efficiency is low, GDL carbon paper hydrophobic capacity and homogeneity are difficult to guarantee.
Disclosure of Invention
The present invention is directed to an apparatus for a fuel cell GDL hydrophobic process to solve the problems set forth in the background art described above.
In order to achieve the purpose, the invention provides the following technical scheme: the device for the GDL drainage process of the fuel cell comprises a solution pool, wherein a plurality of vacuum adsorption rollers and a roller are rotatably arranged in an inner cavity of the solution pool, the vacuum adsorption rollers are arranged in a triangular shape, a power mechanism is arranged on the outer side of the solution pool, a water removal mechanism is arranged on the upper end face of the solution pool, and the surfaces of the vacuum adsorption rollers sequentially pass through GDL materials; a material placing device, a traction dewatering mechanism, a baking device, a traction discharging mechanism and a winding device are sequentially arranged in the moving direction of the GDL material, and the solution tank is positioned between the material placing device and the traction dewatering mechanism; the device also comprises two density measuring instruments, wherein one density measuring instrument is positioned between the emptying device and the solution pool, and the other density measuring instrument is positioned between the traction discharging mechanism and the winding device. The GDL material after being drained in the solution pool is extruded and removed by the traction dewatering mechanism, residual PTFE emulsion on the surface of the GDL material is removed by the combined action of the dewatering mechanism and the traction dewatering mechanism, the GDL material is dried by the baking device, the GDL material is subjected to position correction and tensile force treatment by the traction discharging mechanism, so that the tensile force of the GDL material reaches a certain standard, the density measuring instrument performs density detection on the GDL material, the discharging device and the winding device perform tensile force treatment on the GDL material respectively, a certain drainage standard is reached, the effect of the discharging device in the dewatering process is optimal, and the high-quality dewatering effect is kept. The hydrophobic amount and the hydrophobic uniformity of the GDL material are shown by comparing the difference of the surface densities detected by the two density measuring instruments.
Preferably, the PTFE emulsion is filled in the inner cavity of the solution tank, a concentration detection switch is arranged on one side wall surface of the inner cavity of the solution tank, a liquid level detection switch is fixedly arranged on the other side wall surface of the inner cavity of the solution tank, the concentration and the liquid level height of the PTFE emulsion in the inner cavity of the solution tank can be detected through the concentration detection switch and the liquid level detection switch, and then the PTFE emulsion is properly added.
Preferably, installation driven voller and carry over pinch rolls are rotated to solution pond outer wall side, the carry over pinch rolls is located the top of driven voller, the carry over pinch rolls is connected driving motor, for the transportation GDL material provides transportation transmission power, be equipped with rabbling mechanism in the solution pond, the rabbling mechanism is right solution in the solution pond stirs the processing, can be with PTFE emulsion intensive mixing, improves its concentration uniformity.
Preferably, the power mechanism comprises a centrifugal pump positioned on one side of the solution pool, the centrifugal pump is respectively connected with the plurality of vacuum adsorption rollers and the bottom of the solution pool through pipelines, and the pipelines are provided with filters through which impurities in the PTFE emulsion are filtered.
As preferred, dewatering mechanism includes, the up end of solution pond both sides is equipped with the mount, all be equipped with the slide rail on the mount, two the symmetry is equipped with two vacuum suction head between the slide rail, the GDL material is two pass through between the vacuum suction head, mount fixed mounting pneumatic cylinder, the pneumatic cylinder with sliding connection to it is in to drive vacuum suction head slide on the slide rail, the vacuum suction head spout is at the orientation GDL material one side longitudinal symmetry rotates the installation gyro wheel, the GDL material with the gyro wheel contact slides, thereby prevents to damage GDL material surface.
As preferred, the blowing device includes displacement mechanism, tension guiding mechanism, displacement mechanism includes the chassis, be equipped with two linear guide on the chassis, two slidable mounting rack between the linear guide, linear guide drives the rack and slides, fixed mounting benchmark appearance on the chassis terminal surface, the benchmark appearance detects whether the position of GDL material is correct, rotate the installation on the rack inner chamber wall and unreel the axle, accomodate the axle, unreel the axle with accomodate hub connection driving motor, the accomodate axle is located unreel the axle top, unreel epaxially being equipped with the GDL material, accomodate epaxial complex film of placing, will unreel epaxially GDL material breaks away from the complex film winding is on accomodating the axle, accomodate axle one side and be equipped with rolling disc and linkage disc in proper order.
Preferably, the tension adjusting mechanism comprises a tension detecting roller rotatably arranged on the wall surface of the inner cavity of the rack, a potentiometer is arranged below the tension detecting roller, a driving swing arm is rotatably arranged on the potentiometer, a swing roller is rotatably arranged on the driving swing arm and is positioned on the opposite end surface of the potentiometer, a cylinder is rotatably arranged below the potentiometer and is rotatably connected with the driving swing arm, a conveying roller is rotatably arranged below the swing roller, the GDL material sequentially passes through the tension detecting roller, the swing roller and the conveying roller, when the GDL material passes through the tension detecting roller, the tension detecting roller performs tension detection on the GDL material and feeds the tension degree back to the cylinder, the cylinder drives the driving swing arm to rotate around the potentiometer, the tension of the GDL material is changed by changing the position of the swing roller, and the potentiometer detects the swing angle of the driving swing arm relative to the reference position, and simultaneously feeding back to the air cylinder, controlling the driving swing arm to move to a reference position, and controlling the air cylinder to move by combining the tension detection roller and the potentiometer, so that the GDL material reaches a certain tension standard and is prepared for subsequent hydrophobic treatment.
Preferably, the traction discharging mechanism comprises a discharging frame, a deviation rectifying system is fixedly installed on the discharging frame, a movable shaft is rotatably installed on the deviation rectifying system, a detector is arranged on one side of the deviation rectifying system, the detector is fixedly installed on the wall surface of the discharging frame, when the GDL material passes through the space between the detector and the deviation rectifying system, the detector is used for detecting whether the position of the GDL material deviates or not, when the deviation deviates, the deviation rectifying system drives the movable shaft to swing so that the movable shaft can adjust the conveying position to the reference position all the time, a roller is rotatably installed on the upper end surface of the discharging frame through a support, a tension adjusting mechanism is arranged on the discharging frame, the direction of the tension adjusting mechanism in the traction discharging mechanism is opposite to that of the tension adjusting mechanism on the discharging device, and a power shaft is rotatably installed on the wall surface of the discharging frame, the power shaft is connected with a power motor, a power driven shaft is rotatably arranged on the left side of the power shaft, and the power shaft and the power driven shaft are driven to provide kinetic energy for movement of the GDL material.
Preferably, the winding device includes the displacement mechanism and the tension adjustment mechanism, wherein the tension adjustment mechanism is disposed on the rack in the displacement mechanism, the tension adjustment mechanism in the winding device is opposite to the tension adjustment mechanism in the unwinding device, two transmission shafts are sequentially disposed on the rack, a linkage shaft is disposed on the transmission shafts, a storage shaft and a winding shaft are rotatably mounted on the wall of the rack, the storage shaft and the winding shaft are connected to a power motor, the storage shaft is located above the winding shaft, the GDL material processed by the tension adjustment mechanism is transported through the two transmission shafts, and meanwhile, the composite film on the storage shaft is wound on the winding shaft through the linkage shaft and the GDL material in a reunion manner.
In conclusion, the beneficial effects of the invention are as follows:
1. when the centrifugal pump drives the vacuum adsorption roller to absorb the hydrophobic liquid, the hydrophobic liquid can penetrate through the GDL material wrapped outside the vacuum adsorption roller, the hydrophobic liquid can effectively permeate into the GDL material, the hydrophobic time of the GDL material is reduced, meanwhile, the hydrophobic uniformity of the GDL material is very good, the uniformity can reach +/-1%, and the centrifugal pump has the characteristics of high production efficiency and good hydrophobic effect.
2. The GDL material processed by the tension adjusting mechanism can not generate the phenomena of accumulation and the like, when the PTFE emulsion penetrates through the GDL material with constant tension, the contact area of the PTFE emulsion and the GDL material is certain, the PTFE emulsion can be well contacted with the GDL material, and the high-quality hydrophobic effect is kept.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a whole full-section front view of an apparatus for a fuel cell GDL hydrophobic process according to the present invention;
FIG. 2 is a schematic sectional view of the solution tank of FIG. 1 according to the present invention;
FIG. 3 is a schematic structural view of the rear view power mechanism of the solution tank of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 5 is a schematic view of the overall structure of the water removing mechanism shown in FIG. 4 according to the present invention;
FIG. 6 is a schematic cross-sectional view taken at B-B of FIG. 5 in accordance with the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 6 at C according to the present invention;
FIG. 8 is an enlarged schematic view of the feeding device of FIG. 1;
FIG. 9 is an enlarged view of the structure of FIG. 8 at D according to the present invention;
FIG. 10 is an enlarged view of the drawing and discharging mechanism of FIG. 1;
fig. 11 is an enlarged schematic structural view of the winding device in fig. 1.
The scores in the figures are as follows: 10. a GDL material; 11. a solution pool; 12. a vacuum adsorption roller; 14. passing through a roller; 15. a traction discharging mechanism; 16. a driven roller; 17. a traction roller; 18. a concentration detection switch; 19. a liquid level detection switch; 20. a water removal mechanism; 21. a traction dewatering mechanism; 22. a stirring mechanism; 23. a chassis; 24. a linear guide rail; 25. a rack; 26. compounding film; 27. unwinding the reel; 28. a storage shaft; 29. rotating the disc; 30. a linkage disk; 31. a reference instrument; 32. a discharging frame; 33. a deviation rectifying system; 34. a movable shaft; 35. a roller; 36. a detector; 37. a power shaft; 38. a power driven shaft; 39. a winding shaft; 40. a storage shaft; 41. a linkage shaft; 42. a drive shaft; 43. a tension detection roller; 44. a cylinder; 45. a potentiometer; 46. driving the swing arm; 47. swinging the roller; 48. a transport roller; 49. a vacuum suction head; 50, a hydraulic cylinder; 51. a slide rail; 52. a fixed mount; 53. a roller; 54. a centrifugal pump; 55. a filter; 56. a pipeline; 57. a density measuring instrument; 58. a baking device; 59. a discharging device; 60. a winding device; 61. a power mechanism; 62. a displacement mechanism; 63. a tension adjusting mechanism.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The present invention is described in detail below with reference to fig. 1-11, in which an embodiment of the present invention is provided: a plurality of vacuum adsorption rollers 12 and a roller 14 are rotatably installed in an inner cavity of a solution pool 11, the vacuum adsorption rollers 12 are installed in a triangular shape, a GDL material bypasses the vacuum adsorption rollers 12, a power mechanism 61 is arranged on the outer side of the solution pool 11, the power mechanism 61 drives the vacuum adsorption rollers 12 to work, a water removal mechanism 20 is arranged on the upper end face of the solution pool 11, the surface of the vacuum adsorption roller 12 sequentially passes through a GDL material 10, and optionally, the GDL material 10 can be GDL carbon paper; in the moving direction of the GDL material 10, a discharging device 59, a traction dewatering mechanism 21, a baking device 58, a traction discharging mechanism 15 and a winding device 60 are sequentially arranged, and the solution pool 11 is positioned between the discharging device 59 and the traction dewatering mechanism 21; the drawing and dewatering mechanism 21 extrudes and removes the GDL material 10 after dewatering in the solution pool 11, the residual PTFE emulsion on the surface of the GDL material 10 is removed through the combined action of the dewatering mechanism 20 and the drawing and dewatering mechanism 21, the baking device 58 bakes the GDL material 10, dries the GDL material 10, and the drawing and discharging mechanism 15 corrects the position of the dried GDL material 10 and processes the tension of the GDL material 10, so that the tension of the GDL material 10 reaches a certain standard; the discharging device 59 and the winding device 60 respectively perform tension treatment on the GDL material 10 to reach a certain drainage standard, so that the effect is optimal in the drainage process, and the high-quality drainage effect is maintained. Two density meters 57 are also included; one of the density measuring instruments 57 is positioned between the emptying device 59 and the solution pool 11, and the other density measuring instrument 57 is positioned between the traction discharging mechanism 15 and the winding device 60. The density measuring instrument 57 performs density detection on the GDL material 10; the hydrophobic quantity and the hydrophobic uniformity are expressed by detecting the difference value of the surface density of the GDL material 10 by the density measuring instrument 57, the hydrophobic method that the normal pressure impregnation and the dense-pore roller water circulation penetrate through the GDL material 10 in the technical scheme is adopted to conduct hydrophobic treatment on the GDL material 10, the GDL material 10 is wound by 3 vacuum adsorption rollers 12 and is simultaneously impregnated in hydrophobic liquid, the hydrophobic liquid can penetrate through the GDL material 10, the hydrophobic liquid can effectively penetrate into the GDL material 10, the hydrophobic time of the GDL material 10 is shortened, meanwhile, the hydrophobic uniformity of the GDL material 10 is very good, the uniformity can reach within +/-1%, and the device has the characteristics of high production efficiency and good hydrophobic effect.
In one embodiment, the PTFE emulsion is filled in the inner cavity of the solution tank 11, a concentration detection switch 18 is installed on one side wall surface of the inner cavity of the solution tank 11, a liquid level detection switch 19 is fixedly installed on the other side wall surface of the inner cavity of the solution tank 11, and the concentration and the liquid level of the PTFE emulsion in the inner cavity of the solution tank 11 can be detected by the concentration detection switch 18 and the liquid level detection switch 19, so that the PTFE emulsion can be properly added.
In addition, in one embodiment, a driven roller 16 and a traction roller 17 are rotatably mounted on one side surface of the outer wall of the solution pool 11, the traction roller 17 is located above the driven roller 16, the traction roller 17 is connected with a power motor and provides transportation transmission power for transporting the GDL material 10, a stirring mechanism 22 is arranged in the solution pool 11, and the stirring mechanism 22 is used for stirring the solution in the solution pool 11, so that the PTFE emulsion can be fully mixed, and the concentration uniformity of the PTFE emulsion can be improved.
In addition, in one embodiment, the power mechanism 61 includes a centrifugal pump 54 disposed at one side of the solution tank 11, the centrifugal pump 54 is connected to the plurality of vacuum adsorption rollers 12 and the bottom of the solution tank 11 through a pipe 56, a filter 55 is disposed on the pipe 56, and impurities in the PTFE emulsion are filtered through the filter 55.
In addition, in one embodiment, the water removal mechanism 20 includes that the upper end surfaces of two sides of the solution pool 11 are respectively provided with a fixed frame 52, the fixed frame 52 is provided with a sliding rail 51, two vacuum suction heads 49 are symmetrically arranged between the two sliding rails 51, the GDL material 10 passes between the two vacuum suction heads 49, the fixed frame 52 is fixedly provided with a hydraulic cylinder 50, the hydraulic cylinder 50 is connected with the sliding rail 51 so as to drive the vacuum suction heads 49 to slide on the sliding rails 51, the nozzles of the vacuum suction heads 49 are vertically and symmetrically rotated and installed with rollers 53 on the side facing the GDL material 10, and the GDL material 10 and the rollers 53 are in contact sliding, so as to prevent the surface of the GDL material from being damaged.
In addition, in one embodiment, the discharging device 59 includes a displacement mechanism 62 and a tension adjusting mechanism 63, the displacement mechanism 62 includes a chassis 23, two linear guide rails 24 are provided on the chassis 23, a stage 25 is slidably installed between the two linear guide rails 24, the linear guide rails 24 drive the stage 25 to slide, a reference instrument 31 is fixedly installed on an end surface of the chassis 23, the reference instrument 31 detects whether the GDL material 10 is correctly positioned, a unwinding shaft 27 and a storage shaft 28 are rotatably installed on a wall surface of an inner cavity of the stage 25, the unwinding shaft 27 and the storage shaft 28 are connected with a power motor, the storage shaft 28 is located above the unwinding shaft 27, the GDL material 10 is provided on the unwinding shaft 27, a composite film 26 is placed on the storage shaft 28, the composite film 26 separated from the GDL material 10 on the unwinding shaft 27 is wound on the storage shaft 28, a rotating disk 29 and a link disk 30 are provided in this order on the side of the storage shaft 28.
In addition, in one embodiment, the tension adjusting mechanism 63 includes a tension detecting roller 43 rotatably disposed on a wall surface of an inner cavity of the gantry 25, a potentiometer 45 is disposed below the tension detecting roller 43, a driving swing arm 46 is rotatably mounted on the potentiometer 45, a swing roller 47 is rotatably mounted on the driving swing arm 46 and located on an opposite end surface of the potentiometer 45, an air cylinder 44 is rotatably mounted below the potentiometer 45, the air cylinder 44 is rotatably connected with the driving swing arm 46, a transport roller 48 is rotatably mounted below the swing roller 47, the GDL material 10 passes through the tension detecting roller 43, the swing roller 47 and the transport roller 48 in sequence, when the GDL material 10 passes through the tension detecting roller 43, the tension detecting roller 43 detects the tension of the GDL material 10 and feeds the tension back to the air cylinder 44, the air cylinder 44 drives the driving swing arm 46 to rotate around the potentiometer 45, the tension of the GDL material 10 is changed by changing the position of the swing roller 47, meanwhile, the potentiometer 45 detects the swing angle of the driving swing arm 46 relative to the reference position, and simultaneously feeds back the swing angle to the air cylinder 44, the driving swing arm 46 is controlled to move towards the reference position, and the tension detection roller 43 and the potentiometer 45 are combined with the control air cylinder 44 to move, so that the GDL material achieves a certain tension standard and is prepared for subsequent hydrophobic treatment.
In addition, in an embodiment, the drawing and discharging mechanism 15 includes a discharging rack 32, a deviation rectifying system 33 is fixedly installed on the upper side of the discharging rack 32, a moving shaft 34 is rotatably installed on the deviation rectifying system 33, a detecting instrument 36 is arranged on one side of the deviation rectifying system 33, the detecting instrument 36 is fixedly installed on the wall surface of the discharging rack 32, when the GDL material 10 passes through between the detecting instrument 36 and the deviation rectifying system 33, the detecting instrument 36 faces the GDL material 10 to detect whether the GDL material 10 is deviated, when the deviation is deviated, the deviation rectifying system 33 drives the moving shaft 34 to swing so as to adjust the conveying position of the moving shaft to the reference position all the time, the upper end surface of the discharging rack 32 rotates to install the roller 35 through a bracket, a tension adjusting mechanism 63 is arranged on the discharging rack 32, the tension adjusting mechanism 63 in the drawing and discharging mechanism 15 is opposite to the tension adjusting mechanism 63 on the discharging device 59, go out and rotate installation power axle 37 on the work or material rest 32 wall, power axle 37 connects power motor, power axle 37 one side is rotated installation power driven shaft 38, power axle 37 with drive down for between the power driven shaft 38 the removal of GDL material 10 provides kinetic energy.
In addition, in one embodiment, the winding device 60 includes the displacement mechanism 62 and the tension adjustment mechanism 63, wherein the tension adjusting mechanism 63 is provided on the stage 25 in the displacement mechanism 62, the tension adjusting mechanism 63 in the winding device 60 is opposite to the tension adjusting mechanism 63 in the discharging device 59, two transmission shafts 42 are sequentially arranged on the upper side of the rack 25, a rotary linkage shaft 41 is arranged on the upper side of each transmission shaft 42, a storage shaft 40 and a winding shaft 39 are rotatably arranged on the wall surface of the rack 25, the storage shaft 40 and the winding shaft 39 are connected with a power motor, the storage shaft 40 is positioned above the take-up shaft 39, the GDL material 10 processed by the tension adjusting mechanism 63 is transported by the two drive shafts 42, meanwhile, the composite film 26 on the storage reel 40 is re-combined with the GDL material 10 by the linkage reel 41 and wound on the take-up reel 39.
In the specific embodiment, after the GDL material 10 is manually placed on the unreeling shaft 27, the motor is started, the motor drives the unreeling shaft 27 and the storage shaft 28 to rotate, the composite film 26 separated from the GDL material 10 is wound on the storage shaft 28, the GDL material 10 enters the tension adjusting mechanism 63, the GDL material 10 sequentially passes through the tension detecting roller 43, the swinging roller 47 and the transport roller 48, when the GDL material 10 passes through the tension detecting roller 43, the tension detecting roller 43 detects the tension of the GDL material 10 and transmits the tension to the cylinder 44, the cylinder 44 drives the driving swing arm 46 to rotate around the potentiometer 45, the tension of the GDL material 10 is changed by changing the position of the swinging roller 47, so that the potentiometer 45 receives the tension and feeds the tension back to the cylinder 44, the GDL material 10 achieves a certain tension standard by combining the tension detecting roller 43 and the potentiometer 45, and preparation is made for subsequent hydrophobic processing, then when the GDL material 10 passes through the reference instrument 31, the reference instrument 31 performs position detection on the GDL material 10 to detect whether deviation occurs, when deviation occurs, the linear guide rail 24 drives the rack 25 to further drive the whole body to move back and forth, so that the GDL material 10 is always at the reference position, the density measurement instrument 57 performs surface density detection, the PTFE emulsion enters the solution tank 11 through the driven roller 16 and the traction roller 17 to contact the vacuum adsorption roller 12, the centrifugal pump 54 drives the PTFE emulsion in the solution tank 11 to penetrate through the GDL material 10 to enter the vacuum adsorption roller 12, and then returns to the solution tank 11 through the pipeline 56 and the centrifugal pump 54, the PTFE emulsion can well penetrate through the GDL material 10 through the vacuum adsorption roller 12 to achieve the effect of vacuum adsorption, so that the GDL material is soaked in the hydrophobic liquid, when the centrifugal pump 54 sucks the hydrophobic liquid through the vacuum adsorption roller 12, the hydrophobic liquid can penetrate through the GDL material 10, the hydrophobic liquid can effectively permeate into the GDL material 10, the hydrophobic time of the GDL material 10 is reduced, meanwhile, the hydrophobic uniformity of the GDL material 10 is very good, the uniformity can reach within +/-1%, the production efficiency is high, the hydrophobic effect is good, meanwhile, the GDL material 10 processed by the tension adjusting mechanism 63 can not generate the phenomena of accumulation and the like, when the PTFE emulsion penetrates through the GDL material 10 with constant tension, the contact area of the PTFE emulsion and the GDL material 10 is constant, the PTFE emulsion can be in good contact with the GDL material 10, the high-quality hydrophobic effect is kept, meanwhile, the stirring mechanism 22 carries out stirring processing on the PTFE emulsion in the solution pool 11, the PTFE emulsion can be fully mixed, the concentration uniformity of the PTFE emulsion is improved, then the PTFE emulsion enters the dewatering mechanism 20, the vacuum 49 carries out vacuum suction processing on the GDL material 10 to remove the residues on the GDL material 10 completely, and is in contact with the GDL material 10 through the roller 53, the GDL material 10 slides in contact with the roller 53, so that the surface of the GDL material is prevented from being damaged, when the device is idle, the hydraulic cylinder 50 is started, the hydraulic cylinder 50 is brought to the vacuum suction head 49 through the slide rail 51 to move, the vacuum suction head 49 enters the PTFE emulsion in the solution pool 11, the problem that the device is damaged and is damaged due to the fact that the PTFE emulsion remaining on the vacuum suction head 49 is solidified when the device is idle is prevented, subsequent use is affected, then the GDL material 10 passes through the traction dewatering mechanism 21, the traction dewatering mechanism 21 carries out mechanical residue scraping on the GDL material 10 after being drained from the solution pool 11, foreign matters on the surface of the GDL material 10 are thoroughly scraped through the combined action of the dewatering mechanism 20 and the traction dewatering mechanism 21, the GDL material 10 enters the baking device 58 to be dried after the residue on the surface of the GDL material 10 is completely removed, and the GDL material 10 and the reference are prevented from being deviated due to long transportation required when the drying, the dried GDL material 10 enters a traction discharging mechanism 15, a detector 36 is used for detecting whether the position of the GDL material 10 deviates or not by facing the GDL material 10, when the deviation occurs, a deviation rectifying system 33 drives a moving shaft 34 to swing so that the adjusting and conveying position of the moving shaft is always towards a reference position, then the GDL material 10 is subjected to tension processing again through a tension adjusting mechanism 63 in the traction discharging mechanism 15, then the GDL material passes through the traction discharging mechanism 15 again, the surface density of the material before and after hydrophobic processing is detected, the hydrophobic amount is shown through comparison of the surface density before and after hydrophobic processing, finally the GDL material enters a rolling device 60, the GDL material 10 is subjected to tension processing again through a displacement mechanism 62 and a tension adjusting mechanism 63 in the rolling device 60 and is enabled to be in the reference position all the time, and then the GDL material 10 is transported through a transmission shaft 42, the power motor drives the storage shaft 40 and the winding shaft 39 to move, so that the detector 36 on the storage shaft 40 is attached to the surface of the GDL material 10 again through the linkage shaft 41 and then wound on the winding shaft 39.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (9)
1. An apparatus for the hydrophobic process of the GDL of a fuel cell, comprising a solution tank (11), characterized in that: the inner cavity of the solution pool (11) is rotatably provided with a plurality of vacuum adsorption rollers (12) and a roller (14), the outer side of the solution pool (11) is provided with a power mechanism (61), the upper end surface of the solution pool (11) is provided with a dewatering mechanism (20), and the surface of each vacuum adsorption roller (12) sequentially passes through a GDL (GDL) material (10); in the moving direction of the GDL material (10), a discharging device (59), a traction dewatering mechanism (21), a baking device (58), a traction discharging mechanism (15) and a winding device (60) are sequentially arranged, and the solution pool (11) is positioned between the discharging device (59) and the traction dewatering mechanism (21); the device also comprises two density measuring instruments (57), wherein one density measuring instrument (57) is positioned between the emptying device (59) and the solution pool (11), and the other density measuring instrument (57) is positioned between the traction discharging mechanism (15) and the winding device (60); the amount and uniformity of hydrophobicity of the GDL material (10) is indicated by comparing the difference in areal density detected by the two densitometers (57).
2. The apparatus of claim 1 for the hydrophobic process of the GDL of the fuel cell, wherein: the PTFE emulsion is arranged in the inner cavity of the solution tank (11), a concentration detection switch (18) is arranged on one side wall surface of the inner cavity of the solution tank (11), and a liquid level detection switch (19) is fixedly arranged on the other side wall surface of the inner cavity of the solution tank.
3. The apparatus of claim 1 for the hydrophobic process of the GDL of the fuel cell, wherein: solution pond (11) outer wall side rotates installation driven roller (16) and carry over pinch rolls (17), carry over pinch rolls (17) are located the top of driven roller (16), power motor is connected in carry over pinch rolls (17), be equipped with rabbling mechanism (22) in solution pond (11).
4. The apparatus of claim 1 for the hydrophobic process of the GDL of the fuel cell, wherein: the power mechanism (61) comprises a centrifugal pump (54) located on one side of the solution pool (11), the centrifugal pump (54) is connected with the vacuum adsorption rollers (12) through a pipeline (56) and connected with the bottom of the solution pool (11), and a filter (55) is arranged on the pipeline (56).
5. The device for the fuel cell GDL hydrophobic process as claimed in claim 1, wherein: dewatering mechanism (20) include, the up end of solution pond (11) both sides is equipped with mount (52) respectively, all be equipped with slide rail (51) on mount (52), two the symmetry is equipped with two vacuum suction head (49) between slide rail (51), GDL material (10) is two pass through between vacuum suction head (49), mount (52) fixed mounting pneumatic cylinder (50), pneumatic cylinder (50) with slide rail (51) are connected, vacuum suction head (49) spout is in the orientation GDL material (10) one side longitudinal symmetry rotates installation gyro wheel (53).
6. The apparatus of claim 1 for the hydrophobic process of the GDL of the fuel cell, wherein: the emptying device (59) comprises a displacement mechanism (62) and a tension adjusting mechanism (63), the displacement mechanism (62) comprises a bottom frame (23), two linear guide rails (24) are arranged on the bottom frame (23), a rack (25) is installed between the two linear guide rails (24) in a sliding mode, the linear guide rail (24) drives the rack (25) to slide, a reference instrument (31) is fixedly arranged on the bottom frame (23), the reference instrument (31) is used for detecting whether the GDL material (10) is positioned correctly or not, a unreeling shaft (27) and a containing shaft (28) are rotatably arranged on the wall surface of the inner cavity of the rack (25), the unreeling shaft (27) and the storage shaft (28) are connected with a power motor, the storage shaft (28) is positioned above the unreeling shaft (27), be equipped with on unreeling axle (27) GDL material (10), accomodate axle (28) one side and be equipped with rolling disc (29) and linkage disk (30) in proper order.
7. The apparatus of claim 6 for the hydrophobic process of the GDL of the fuel cell, wherein: tension guiding mechanism (63) include, rotate and set up tension detection roller (43) on rack (25) inner chamber wall, tension detection roller (43) below is equipped with potentiometre (45), rotate installation drive swing arm (46) on potentiometre (45), lie in on drive swing arm (46) rotate installation pendulum roller (47) on the opposite terminal surface of potentiometre (45), potentiometre (45) below is rotated installation cylinder (44), cylinder (44) with rotate between drive swing arm (46) and connect, it rotates installation transportation roller (48) to pendulum roller (47) below.
8. The apparatus of claim 1 for the hydrophobic process of the GDL of the fuel cell, wherein: the traction discharging mechanism (15) comprises a discharging frame (32), a deviation rectifying system (33) is fixedly arranged on the upper side of the discharging frame (32), a moving shaft (34) is rotatably arranged on the deviation rectifying system (33), a detector (36) is arranged on one side of the deviation rectifying system (33), the detector (36) is fixedly arranged on the wall surface of the discharging frame (32), the upper end surface of the discharging frame (32) is rotatably provided with a roller (35) through a bracket, a tension adjusting mechanism (63) is arranged on the discharging frame (32), the tension adjusting mechanism (63) in the traction discharging mechanism (15) is opposite to the tension adjusting mechanism (63) on the discharging device (59), go out on the work or material rest (32) wall and rotate installation power shaft (37), power shaft (37) are connected power motor, power shaft (37) one side is rotated installation power driven shaft (38).
9. The apparatus of claim 6 for the hydrophobic process of the GDL of the fuel cell, wherein: coiling mechanism (60) include displacement mechanism (62) with tension adjustment mechanism (63), wherein in displacement mechanism (62) be equipped with on rack (25) tension adjustment mechanism (63), in coiling mechanism (60) tension adjustment mechanism (63) with in blowing device (59) tension adjustment mechanism (63) opposite direction, rack (25) upside is equipped with two transmission shaft (42) in proper order, transmission shaft (42) upside is equipped with pivoted universal driving shaft (41), rotate the installation on rack (25) wall and store axle (40), rolling axle (39), store axle (40) rolling axle (39) connection driving motor, it is located to store axle (40) rolling axle (39) top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210363000.2A CN114464820B (en) | 2022-04-08 | 2022-04-08 | Equipment for fuel cell GDL hydrophobic process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210363000.2A CN114464820B (en) | 2022-04-08 | 2022-04-08 | Equipment for fuel cell GDL hydrophobic process |
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| CN114464820B true CN114464820B (en) | 2022-07-12 |
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| CN114464820A (en) | 2022-05-10 |
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