CN115588761A - Hydrogen fuel cell stack defect detection device and detection method thereof - Google Patents
Hydrogen fuel cell stack defect detection device and detection method thereof Download PDFInfo
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- CN115588761A CN115588761A CN202211361445.3A CN202211361445A CN115588761A CN 115588761 A CN115588761 A CN 115588761A CN 202211361445 A CN202211361445 A CN 202211361445A CN 115588761 A CN115588761 A CN 115588761A
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- 238000001514 detection method Methods 0.000 title claims abstract description 116
- 239000000446 fuel Substances 0.000 title claims abstract description 83
- 239000001257 hydrogen Substances 0.000 title claims abstract description 31
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 230000007547 defect Effects 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 53
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04664—Failure or abnormal function
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0276—Sealing means characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to the technical field of detection of hydrogen fuel cells, in particular to a hydrogen fuel cell stack defect detection device and a detection method thereof, wherein the detection device comprises a transportation assembly, a fuel cell, a lifting assembly and a detection assembly, and has the beneficial effects that: through the cooperation that sets up lift drive and sealed detection case to form sealed environment, make fuel cell work through admitting air, utilize and detect interior pressure and reach the problem that whether leaks gas of detecting fuel cell, the drive of cooperation conveyer belt forms the station switching of material loading, detection and unloading, realizes automatic detection, and the operation degree of difficulty is low, is applicable to big batch detection, and the mill of being convenient for uses.
Description
Technical Field
The invention relates to the technical field of detection of hydrogen fuel cells, in particular to a hydrogen fuel cell stack defect detection device and a detection method thereof.
Background
The fuel cell stack is formed by combining a plurality of single cells, and defects or wrong operation modes of raw materials and parts can affect the normal operation of the whole stack in the assembly and operation stages of the stack.
The hydrogen fuel cell generates electricity by utilizing the principle of reversely electrolyzing water, so that continuous water drainage and gas supply are required for the hydrogen fuel cell, the requirement on the air tightness of the hydrogen fuel cell is high, and once leakage occurs, safety accidents are easily caused.
When the hydrogen fuel cell is detected in the prior art, the data comparison of the hydrogen amount and the water yield needs to be carried out, so that the problem of leakage is solved, the detection mode is low in efficiency, the detection precision requirement is high, large-batch detection is difficult to carry out, the detection operation difficulty is high, and the requirement of large-batch detection in a factory is not facilitated.
Disclosure of Invention
The present invention is directed to a device and a method for detecting defects of a hydrogen fuel cell stack, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a hydrogen fuel cell stack defect detection apparatus, the detection apparatus comprising:
the conveying assembly comprises a circulating conveying belt driven by a driving roller, a plurality of groups of positioning material holes which are distributed at intervals and linearly distributed are arranged on the conveying belt, and a bearing tray is clamped in the positioning material holes;
the lower end of the fuel cell is arranged on the bearing tray, the two sides of the upper end of the fuel cell are provided with interface components, and the upper end of the fuel cell is provided with a connecting end;
the lifting assembly is fixedly arranged in the middle inner cavity of the circulating conveyor belt and comprises a telescopic column, a top plate is arranged at the end part of the telescopic column, and the upper end of the top plate is opposite to the bearing tray;
the detection assembly, the detection assembly is installed in the upper end of conveyer belt, and the detection assembly includes detection case and end cover, and the lower extreme port of detection case is just to the roof, and the upper end sealing connection of detection case has end cover, and horizontal flexible installation has sealing connection assembly in the inner chamber of detection case, end cover's upper end symmetry is provided with air intake pump and air pump, and air intake pump and air pump pass through sealing connection assembly sealing connection interface assembly, and the manometer of detection inner chamber atmospheric pressure is installed in the upper end grafting of end cover.
Preferably, the transportation subassembly includes the transportation frame, the conveyer belt is installed on the transportation frame, and the drive roller passes through motor drive, and the driving roller bearing rotates to be installed on the transportation frame, is provided with middle frame in the middle of the lower extreme of transportation frame, the lower extreme of flexible post is fixed on middle frame.
Preferably, be provided with four groups of side channels that the circumference array distributes on the location material hole, the lower extreme of holding the tray is provided with the holding ring, and the outer wall of holding ring is provided with the sidebar of pegging graft with the side channel cooperation, the inner wall in outer wall laminating location material hole of holding ring, and the lower extreme of holding ring is provided with the locating hole, be provided with the toper end of pegging graft with the locating hole cooperation on the roof.
Preferably, the middle of the upper end of the bearing tray is provided with a mounting groove which is matched and spliced with the fuel cell, the upper end of the bearing tray is provided with a first sealing ring, the inner side of the lower end of the detection box is provided with a circular first sealing groove, the bearing tray is attached to the lower end face of the detection box under the driving of the telescopic column, and the first sealing ring is spliced in the first sealing groove.
Preferably, the lower extreme of detection case is provided with frame type groove, and the upper end of middle frame is provided with the crossbeam frame, frame type groove joint is on the crossbeam frame, through first connecting piece fixed connection between frame type groove and the crossbeam frame, end cover passes through second connecting piece sealing connection at the upper end port of detection case.
Preferably, the interface module includes air inlet interface, exhaust interface and the interface of intaking, the interface connection of admitting air pump transportation hydrogen, the exhaust interface connection air pump of exhausting, air inlet interface, exhaust interface and the interface of intaking all extend to the upper end of end cover through connecting folding pipe, are provided with the display screen in the middle of the upper end of end cover, and the upper end inner wall of detection case is provided with the socket, fuel cell's upper end is provided with the connection end, and the connection end is pegged graft on the socket.
Preferably, the upper end of detection case is provided with a pair of ear seat, transversely is provided with telescopic link driven sealing connection assembly on the ear seat, sealing connection assembly is including linking board, ladder pipe and threaded sleeve, be provided with even pipe in the ladder pipe, the ladder pipe is fixed on linking the board, and the tip screw thread of ladder pipe has cup jointed threaded sleeve, links the board and connects the telescopic link, and the lower extreme of linking the board is provided with the slider of slidable mounting on the ear seat, links the pipe and cooperates sealed the grafting with the interface module.
Preferably, the end of the air inlet interface, the air exhaust interface and the water inlet interface on the interface component is provided with a second sealing groove, the outer side of the connecting pipe is provided with a second sealing ring, the second sealing ring is inserted in the second sealing groove, the outer wall of the interface component is provided with a circular ring groove, a circular air bag is pressed between the stepped pipe and the threaded sleeve pipe, and the air bag is pressed on the outer wall of the circular ring groove.
Preferably, the outer wall of threaded sleeve is provided with four groups of mounting holes that circumference array distributes, the outer wall of gasbag is provided with fixed ring, is provided with the third connecting piece of grafting on the mounting hole on the fixed ring, and the outer wall of gasbag bonds on the inner wall of fixed ring, and the inner chamber of gasbag is provided with four groups of elastic cords that circumference array distributes, is provided with on the gasbag and connects the trachea, be provided with the gas pocket on the terminal surface of ladder pipe, connect the trachea and peg graft in the gas pocket, the admission line in the interface module is connected to the other end of gas pocket.
A detection method implemented by the apparatus for detecting defects in a hydrogen fuel cell stack, the detection method comprising the steps of:
conveying and feeding, namely placing the bearing tray on a conveyor belt, positioning and installing the fuel cell through the bearing tray, and transversely conveying through the conveyor belt;
the lifting drive drives the bearing tray to rise through the telescopic column, so that the fuel cell is positioned in the detection box, the bearing tray seals the lower end port of the detection box, and the telescopic rod drives the sealing connection assembly to realize the feeding connection of the fuel cell;
detecting air inflow, namely, introducing air into the fuel cell through an air inflow pump, monitoring the change of the internal pressure of the detection box through a pressure gauge, if large fluctuation is generated, the air tightness of the fuel cell is low, and detecting the power supply of the fuel cell through a display screen;
reset and unload, through flexible post drive fuel cell decline reset, keep away from the detection station through the conveyer belt transmission, be convenient for unload of fuel cell and tray.
Compared with the prior art, the invention has the beneficial effects that:
the lifting detection box is matched with the lifting drive box, so that a sealed environment is formed, the fuel cell works through air inlet, the problem of detecting whether the fuel cell leaks air or not by detecting internal pressure is solved, station switching of feeding, detecting and discharging is formed by matching with the drive of the conveying belt, automatic detection is realized, the operation difficulty is low, and the lifting detection box is suitable for large-scale detection and convenient for factories to use.
Drawings
FIG. 1 is a schematic perspective view of a detection box according to the present invention;
FIG. 2 is a perspective view of the seal connection assembly of the present invention;
FIG. 3 is a schematic perspective view of a fuel cell according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is a schematic perspective view of the tray of the present invention;
FIG. 6 is a schematic perspective view of the bladder of the present invention;
FIG. 7 is a side view of the three-dimensional structure of the detection box of the present invention;
FIG. 8 is a perspective view of the conveyor belt of the present invention;
FIG. 9 is a schematic structural view of the present invention;
FIG. 10 is an enlarged view of the structure of FIG. 9 at A;
FIG. 11 is an enlarged view of the structure at B in FIG. 10;
FIG. 12 is a perspective view of the tray of the present invention;
FIG. 13 is a perspective view of the threaded sleeve of the present invention;
fig. 14 is a schematic perspective view of the stepped pipe of the present invention.
In the figure: 1. a transport rack; 2. a conveyor belt; 3. positioning a material hole; 4. a drive roller; 5. a support tray; 6. a middle frame; 7. a telescopic column; 8. a top plate; 9. a detection box; 10. a first seal ring; 11. a fuel cell; 12. an interface component; 13. connecting the end heads; 14. a first connecting member; 15. a first seal groove; 16. sealing the connecting assembly; 17. a display screen; 18. sealing the end cap; 19. an exhaust pump; 20. a cross beam frame; 21. a side groove; 22. a frame-shaped groove; 23. an intake pump; 24. connecting the folding pipes; 25. a second connecting member; 26. a pressure gauge; 27. a socket; 28. an ear mount; 29. connecting plates; 30. a stepped pipe; 31. a slider; 32. connecting pipes; 33. a threaded bushing; 34. an air bag; 35. elastic bands; 36. a third connecting member; 37. fixing the circular ring; 38. mounting grooves; 39. connecting an air pipe; 40. air holes; 41. a second seal ring; 42. mounting holes; 43. a positioning ring; 44. positioning holes; 45. side strips; 46. a circular groove; 47. a telescopic rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 14, the present invention provides a technical solution:
example 1:
a hydrogen fuel cell stack defect detection device comprises a transportation assembly, a fuel cell 11, a lifting assembly and a detection assembly.
The conveying assembly comprises a circulating conveying belt 2 driven by a driving roller 4, a plurality of groups of positioning material holes 3 which are distributed at intervals and distributed in a linear mode are formed in the conveying belt 2, and a bearing tray 5 is clamped in the positioning material holes 3.
Through setting up the horizontal conveying that 2 realization bearing tray 5 of conveyer belt to form material loading, detection, the automatic station switching of unloading, through the cooperation of location material hole 3 with bearing tray 5, realize bearing tray 5's location installation.
The lower end of the fuel cell 11 is arranged on the bearing tray 5, the two sides of the upper end of the fuel cell 11 are provided with interface components 12, and the upper end of the fuel cell 11 is provided with a connecting end 13.
The support tray 5 supports and mounts the fuel cell 11 during detection.
Lifting unit fixed mounting is in the middle inner chamber of endless conveyor 2, and lifting unit includes flexible post 7, and the tip of flexible post 7 is provided with roof 8, and the upper end of roof 8 is just to holding tray 5.
The tray 5 is driven by the telescopic column 7 to rise into the detection box 9.
Detection element installs in the upper end of conveyer belt 2, detection element includes detection case 9 and end cover 18, the lower extreme port of detection case 9 is just to roof 8, the upper end sealing connection of detection case 9 has end cover 18, horizontal flexible installation has sealing connection assembly 16 in the inner chamber of detection case 9, end cover 18's upper end symmetry is provided with air intake pump 23 and air discharge pump 19, air intake pump 23 and air discharge pump 19 pass through 16 sealing connection interface assembly 12 of sealing connection assembly, the manometer 26 of detection inner chamber atmospheric pressure is installed in the upper end grafting of end cover 18.
A sealed detection environment is formed by the detection box 9, the sealing end cover 18 and the bearing plate 5, 16 is sealed and fed to the fuel cell 11 through sealing connection, so that raw materials such as hydrogen, oxygen and the like are subjected to fuel cell, reverse electrolyzed water reaction is realized, the purpose of generating electric energy is achieved, and in the air inlet process, the internal pressure of the detection box 9 is monitored through the pressure gauge 26.
If the internal pressure of the detection box 9 changes, the air tightness of the fuel cell 11 is low, hydrogen and the like leak, otherwise, the detection is qualified, automatic detection is realized, the operation difficulty is low, the detection box is suitable for large-scale detection, and the detection box is convenient for use in factories
Example 2:
on the basis of embodiment 1, in order to prevent the dislocation of the bearing tray 5 and cause the installation angle of the fuel cell 11 to be incorrect, so that the interface component 12 cannot be connected with the sealing connection component 16, the transportation component comprises a transportation frame 1, the conveyor belt 2 is installed on the transportation frame 1, the driving roller 4 is driven by a motor, the driving roller 4 is rotatably installed on the transportation frame 1 through a bearing, the middle frame 6 is arranged in the middle of the lower end of the transportation frame 1, and the lower end of the telescopic column 7 is fixed on the middle frame 6.
The fixed installation of the transportation assembly and the lifting assembly is realized through the middle frame 6 and the transportation frame 1.
Four groups of side grooves 21 distributed in a circumferential array are arranged on the positioning material hole 3, a positioning ring 43 is arranged at the lower end of the bearing tray 5, a side strip 45 matched and spliced with the side grooves 21 is arranged on the outer wall of the positioning ring 43, the outer wall of the positioning ring 43 is attached to the inner wall of the positioning material hole 3, a positioning hole 44 is arranged at the lower end of the positioning ring 43, and a conical end head matched and spliced with the positioning hole 44 is arranged on the top plate 8.
Through the cooperation that sets up sidebar 45 and side channel 21, realize the location grafting installation of tray 5, prevent tray 5 lateral angle skew, utilize the cooperation of locating hole 44 and roof 8, realize accurate grafting lift drive, further improved the motion stability that lift drive detected.
Example 3:
in addition to embodiment 2, in order to improve the sealing performance of the lower end port of the detection box 9, a mounting groove 38 that fits and is inserted into the fuel cell 11 is provided in the middle of the upper end of the support tray 5, a first seal ring 10 is provided at the upper end of the support tray 5, an annular first seal groove 15 is provided inside the lower end of the detection box 9, the support tray 5 is attached to the lower end surface of the detection box 9 by driving the telescopic column 7, and the first seal ring 10 is inserted into the first seal groove 15.
Through the cooperation of first sealing washer 10 and first seal groove 15, realize that the extrusion formula between tray 5 and the detection case 9 lower terminal surface closely laminates.
Example 4:
on the basis of embodiment 3, in order to implement installation of the detection box 9, a frame-shaped groove 22 is further provided at the lower end of the detection box 9, a beam frame 20 is provided at the upper end of the middle frame 6, the frame-shaped groove 22 is clamped on the beam frame 20, the frame-shaped groove 22 and the beam frame 20 are fixedly connected through a first connecting piece 14, and the sealing end cover 18 is hermetically connected at the upper end port of the detection box 9 through a second connecting piece 25.
The positioning installation of the detection box 9 is realized through the matching of the beam frame 20 and the frame type groove 22, and the fixing of the detection box 9 is realized through the second connection 25.
Example 5:
on the basis of embodiment 3, in order to carry out further detection to fuel cell 11, still have and include the interface that admits air at interface module 12, exhaust interface and the interface of intaking, admit air interface connection admission pump 23 transportation hydrogen, exhaust interface connection exhaust pump 19, the interface that admits air, exhaust interface and the interface of intaking all extend to the upper end of end cover 18 through connecting folding tube 24, be provided with display screen 17 in the middle of the upper end of end cover 18, the upper end inner wall of detection case 9 is provided with socket 27, the upper end of fuel cell 11 is provided with connection end 13, connection end 13 pegs graft on socket 27.
Through the cooperation of connecting end 13 and socket 27, realize detecting fuel cell 11's operating efficiency, be convenient for simultaneously retrieve the electric energy that produces in the testing process, avoid causing the waste of resource.
Example 6:
in addition to embodiment 5, in order to realize the automatic detection connection of the fuel cell 11, a pair of ear seats 28 is disposed at the upper end of the detection box 9, a sealing connection assembly 16 driven by an expansion link 47 is laterally disposed on the ear seats 28, the sealing connection assembly 16 includes a connecting plate 29, a stepped pipe 30 and a threaded sleeve 33, a connecting pipe 32 is disposed in the stepped pipe 30, the stepped pipe 30 is fixed on the connecting plate 29, the threaded sleeve 33 is sleeved on the end portion of the stepped pipe 30 in a threaded manner, the connecting plate 29 is connected with the expansion link 47, a slider 31 slidably mounted on the ear seat 28 is disposed at the lower end of the connecting plate 29, and the connecting pipe 32 is in matched, sealed and inserted with the interface assembly 12.
The drive of the sealing connection assembly 16 is effected by the provision of the telescopic rod 47, so that the connecting tube 32 is connected to the interface assembly 12 under transverse drive.
Example 7:
on the basis of embodiment 6, in order to improve the sealing performance of the connection, a second sealing groove is arranged at the end of the air inlet, the air outlet and the water inlet on the interface component 12, a second sealing ring 41 is arranged at the outer side of the connecting pipe 32, the second sealing ring 41 is inserted into the second sealing groove, an annular groove 46 is arranged on the outer wall of the interface component 12, an annular air bag 34 is pressed between the stepped pipe 30 and the threaded sleeve 33, and the air bag 34 is pressed on the outer wall of the annular groove 46.
Through the cooperation that sets up second sealing washer 41 and second seal groove, realize the sealed of connecting pipe 32 grafting port position, through the extrusion inflation of gasbag 34, further improve the leakproofness of connecting pipe 32 hookup location, avoid hookup location to leak and cause the interference to the testing result.
Example 8:
in addition to embodiment 7, in order to further improve the sealing performance of the connection position, four sets of mounting holes 42 are provided on the outer wall of the threaded sleeve 33, the four sets of mounting holes are distributed in a circumferential array, a fixed ring 37 is provided on the outer wall of the air bag 34, a third connecting piece 36 inserted into the mounting hole 42 is provided on the fixed ring 37, the outer wall of the air bag 34 is adhered to the inner wall of the fixed ring 37, four sets of elastic bands 35 distributed in a circumferential array are provided in the inner cavity of the air bag 34, a connecting air pipe 39 is provided on the air bag 34, an air hole 40 is provided on the end face of the stepped pipe 30, the connecting air pipe 39 is inserted into the air hole 40, and the other end of the air hole 40 is connected to the air inlet pipe in the interface module 12.
Through connecting the inlet duct with gasbag 34 to make at fuel cell 11 during operation, gasbag 34 remains the inflation of admitting air all the time, thereby makes the inseparable pressfitting of outer wall of gasbag 34 on ring groove 46, realizes further sealed, simultaneously through setting up elastic cord 35, thereby after detecting the completion with before detecting, gasbag 34 drives to the outside, makes the smooth grafting of interface module 12 in stepped pipe 30, the installation and the dismantlement of being convenient for.
The detection method implemented by the hydrogen fuel cell stack defect detection device comprises the following steps:
conveying and feeding, namely placing the bearing tray 5 on the conveyor belt 2, positioning and installing the fuel cell 11 through the bearing tray 5, and transversely conveying through the conveyor belt 2;
the lifting drive is realized, the support tray 5 is driven to ascend through the telescopic column 7, so that the fuel cell 11 is positioned in the detection box 9, the support tray 5 seals the lower end port of the detection box 9, and the sealing connection assembly 16 is driven through the telescopic rod 47, so that the feeding connection of the fuel cell 11 is realized;
air inlet detection, namely, air is fed into the fuel cell 11 through an air inlet pump 23, the change of the internal pressure of the detection box 9 is monitored through a pressure gauge 26, if large fluctuation occurs, the air tightness of the fuel cell is low, and the power supply of the fuel cell 11 is detected through a display screen 17;
reset unloading, through flexible post 7 drive fuel cell 11 decline reset, keep away from the detection station through the transmission of conveyer belt 2, be convenient for fuel cell 11 and hold unloading of tray 5.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A hydrogen fuel cell stack defect detection device is characterized in that: the detection device includes:
the conveying assembly comprises a circulating conveying belt (2) driven by a driving roller (4), a plurality of groups of positioning material holes (3) which are distributed at intervals and distributed in a linear mode are formed in the conveying belt (2), and a bearing tray (5) is clamped in the positioning material holes (3);
the lower end of the fuel cell (11) is arranged on the bearing tray (5), the two sides of the upper end of the fuel cell (11) are provided with interface components (12), and the upper end of the fuel cell (11) is provided with a connecting end (13);
the lifting assembly is fixedly arranged in the middle inner cavity of the circulating conveyor belt (2), the lifting assembly comprises a telescopic column (7), a top plate (8) is arranged at the end part of the telescopic column (7), and the upper end of the top plate (8) is opposite to the bearing tray (5);
detection module, detection module installs the upper end at conveyer belt (2), and detection module includes detection case (9) and end cover (18), and the lower extreme port of detection case (9) is just to roof (8), and the upper end sealing connection of detection case (9) has end cover (18), and horizontal flexible in the inner chamber of detection case (9) installs sealing connection subassembly (16), the upper end symmetry of end cover (18) is provided with air intake pump (23) and air discharge pump (19), and air intake pump (23) and air discharge pump (19) are through sealing connection subassembly (16) sealing connection interface assembly (12), and manometer (26) of detection inner chamber atmospheric pressure are installed in the grafting of the upper end of end cover (18).
2. The apparatus for detecting defects in a hydrogen fuel cell stack according to claim 1, characterized in that: the transportation assembly comprises a transportation frame (1), the conveying belt (2) is installed on the transportation frame (1), the driving roller (4) is driven by a motor, the bearing of the driving roller (4) is rotatably installed on the transportation frame (1), a middle frame (6) is arranged in the middle of the lower end of the transportation frame (1), and the lower end of the telescopic column (7) is fixed on the middle frame (6).
3. The apparatus for detecting defects in a hydrogen fuel cell stack according to claim 1, characterized in that: four groups of side grooves (21) distributed in a circumferential array are arranged on the positioning material holes (3), positioning rings (43) are arranged at the lower ends of the bearing plates (5), side strips (45) matched with the side grooves (21) in an inserting mode are arranged on the outer walls of the positioning rings (43), the outer walls of the positioning rings (43) are attached to the inner walls of the positioning material holes (3), positioning holes (44) are formed in the lower ends of the positioning rings (43), and conical ends matched with the positioning holes (44) in an inserting mode are arranged on the top plate (8).
4. A hydrogen fuel cell stack defect detecting apparatus according to claim 2, characterized in that: the fuel cell detection device is characterized in that a mounting groove (38) which is matched and spliced with a fuel cell (11) is formed in the middle of the upper end of the bearing tray (5), a first sealing ring (10) is arranged at the upper end of the bearing tray (5), an annular first sealing groove (15) is formed in the inner side of the lower end of the detection box (9), the bearing tray (5) is attached to the lower end face of the detection box (9) under the driving of the telescopic column (7), and the first sealing ring (10) is spliced in the first sealing groove (15).
5. The apparatus for detecting defects in a hydrogen fuel cell stack according to claim 4, characterized in that: the lower extreme of detection case (9) is provided with frame type groove (22), and the upper end of middle frame (6) is provided with crossbeam frame (20), frame type groove (22) joint is on crossbeam frame (20), through first connecting piece ((14) fixed connection between frame type groove (22) and crossbeam frame (20), end cover (18) are through second connecting piece (25) sealing connection at the upper end port of detection case (9).
6. The apparatus for detecting defects in a hydrogen fuel cell stack according to claim 1, wherein: interface module (12) are including admitting air the interface, exhaust interface and the interface of intaking, the interface connection of admitting air pump (23) transportation hydrogen, exhaust interface connection exhaust pump (19), interface, exhaust interface and the upper end of intaking all extend to end cover (18) through connecting folding tube (24) of admitting air, are provided with display screen (17) in the middle of the upper end of end cover (18), and the upper end inner wall of detection case (9) is provided with socket (27), the upper end of fuel cell (11) is provided with connection end (13), connects end (13) and pegs graft on socket (27).
7. The apparatus for detecting defects in a hydrogen fuel cell stack according to claim 6, characterized in that: the upper end of detection case (9) is provided with a pair of ear seat (28), transversely is provided with telescopic link (47) driven sealing connection assembly (16) on ear seat (28), sealing connection assembly (16) are including company's board (29), ladder pipe (30) and threaded sleeve pipe (33), be provided with in ladder pipe (30) company's pipe (32), ladder pipe (30) are fixed on company's board (29), and threaded sleeve pipe (33) have been cup jointed to the tip screw thread of ladder pipe (30), and telescopic link (47) are connected in company's board (29), and the lower extreme of company's board (29) is provided with slider (31) of slidable mounting on ear seat (28), and company's pipe (32) and interface module (12) cooperation are sealed to be pegged graft.
8. A hydrogen fuel cell stack defect detecting apparatus according to claim 7, characterized in that: the tip of the interface of admitting air, exhaust interface and the interface of intaking on interface module (12) is provided with the second seal groove, the outside of connecting pipe (32) is provided with second sealing washer (41), and second sealing washer (41) are pegged graft in the second seal groove, and the outer wall of interface module (12) is provided with annular ring groove (46) of circle, the pressfitting has annular gasbag (34) of circle between ladder pipe (30) and threaded sleeve (33), gasbag (34) pressfitting is on the outer wall of ring groove (46).
9. The apparatus for detecting defects in a hydrogen fuel cell stack according to claim 8, wherein: the outer wall of the threaded sleeve (33) is provided with four groups of mounting holes (42) distributed in a circumferential array mode, the outer wall of the air bag (34) is provided with a fixed ring (37), a third connecting piece (36) inserted in the mounting holes (42) is arranged on the fixed ring (37), the outer wall of the air bag (34) is bonded on the inner wall of the fixed ring (37), four groups of elastic bands (35) distributed in a circumferential array mode are arranged in an inner cavity of the air bag (34), a connecting air pipe (39) is arranged on the air bag (34), an air hole (40) is formed in the end face of the stepped pipe (30), the connecting air pipe (39) is inserted in the air hole (40), and the other end of the air hole (40) is connected with an air inlet pipeline in the interface component (12).
10. A detection method implemented by the hydrogen fuel cell stack defect detection apparatus according to any one of claims 1 to 9, characterized in that: the detection method comprises the following steps:
conveying and feeding, namely placing the bearing tray (5) on the conveyor belt (2), positioning and installing the fuel cell (11) through the bearing tray (5), and transversely conveying through the conveyor belt (2);
the lifting drive is used for driving the bearing tray (5) to ascend through the telescopic column (7), so that the fuel cell (11) is positioned in the detection box (9), the bearing tray (5) seals the lower end port of the detection box (9), and the telescopic rod (47) drives the sealing connection assembly (16) to realize the feeding connection of the fuel cell (11);
air inlet detection, wherein air is fed into the fuel cell (11) through an air inlet pump (23), the change of the internal pressure of the detection box (9) is monitored through a pressure gauge (26), if large fluctuation occurs, the air tightness of the fuel cell is low, and the power supply of the fuel cell (11) is detected through a display screen (17);
reset unloading, the fuel cell (11) is driven to descend through the telescopic column (7) to reset, the detection station is far away through the transmission of the conveyor belt (2), and the unloading of the fuel cell (11) and the bearing tray (5) is facilitated.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116989944A (en) * | 2023-09-27 | 2023-11-03 | 晋中学院 | Automatic detector for hydrogen fuel cell leakage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214407927U (en) * | 2021-04-29 | 2021-10-15 | 上海申风投资管理有限公司 | Air tightness detection device for fuel cell stack |
| CN113932975A (en) * | 2021-11-19 | 2022-01-14 | 上海青氢科技有限公司 | Automatic detection device for air tightness of assembled fuel cell stack |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214407927U (en) * | 2021-04-29 | 2021-10-15 | 上海申风投资管理有限公司 | Air tightness detection device for fuel cell stack |
| CN113932975A (en) * | 2021-11-19 | 2022-01-14 | 上海青氢科技有限公司 | Automatic detection device for air tightness of assembled fuel cell stack |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116989944A (en) * | 2023-09-27 | 2023-11-03 | 晋中学院 | Automatic detector for hydrogen fuel cell leakage |
| CN116989944B (en) * | 2023-09-27 | 2023-12-19 | 晋中学院 | Automatic detector for hydrogen fuel cell leakage |
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