CN114086199A - PEM (proton exchange membrane) electrolytic hydrogen production device convenient to overhaul - Google Patents
PEM (proton exchange membrane) electrolytic hydrogen production device convenient to overhaul Download PDFInfo
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- CN114086199A CN114086199A CN202111557215.XA CN202111557215A CN114086199A CN 114086199 A CN114086199 A CN 114086199A CN 202111557215 A CN202111557215 A CN 202111557215A CN 114086199 A CN114086199 A CN 114086199A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
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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
- 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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention provides a PEM (proton exchange membrane) electrolytic hydrogen production device convenient to overhaul, which comprises a PEM electrolytic hydrogen production main body and further comprises: the fixed frame surrounds the bottom of the PEM electrolytic hydrogen production main body; the maintenance mechanism comprises a connecting seat, a carrying frame, a carrying plate and a moving part, wherein one end of the connecting seat is connected to the fixed frame in a sliding mode, the carrying frame is connected to the other end of the connecting seat, the carrying plate is connected to the carrying frame in a sliding mode, and the moving part is arranged on the carrying frame and used for enabling the carrying frame to move along the fixed frame; and the lifting mechanism is arranged on the carrying frame and connected to the carrying plate, and is used for driving the carrying plate to lift. The hydrogen production device is provided with the movable maintenance mechanism which is matched with the lifting mechanism, so that the hydrogen production equipment can be maintained and maintained more conveniently.
Description
Technical Field
The invention relates to the technical field of electrolytic hydrogen production, in particular to a PEM electrolytic hydrogen production device convenient to overhaul.
Background
The PEM water electrolysis hydrogen production adopts a perfluorinated sulfonic acid proton exchange membrane with good chemical stability, proton conductivity and gas separation as a solid electrolyte to replace a asbestos membrane, so that electron transfer can be effectively prevented, and the safety of the electrolytic cell is improved; compared with AE hydrogen production, the PEM water electrolysis hydrogen production has higher working current density, higher overall efficiency, higher hydrogen volume fraction, higher gas production pressure and higher dynamic response speed, can adapt to the fluctuation of renewable energy power generation, and is considered to be a water electrolysis hydrogen production technology with great development prospect, so that the PEM electrolysis hydrogen production device is widely applied in related fields;
for example, patent CN110016682B discloses a water electrolysis hydrogen plant, including the bottom plate, the top surface overlap joint of bottom plate has the water electrolysis case, the bottom fixed mounting of water electrolysis case has the supporting legs, and the bottom of water electrolysis case passes through supporting legs and bottom plate looks overlap joint, the right side fixed mounting of bottom plate top surface has fixed strip and magnetism to inhale the baffle, and the fixed strip is located the both sides of magnetism to inhale the baffle, the top overlap joint of fixed strip has the battery, the bottom fixed mounting of battery has support bar and adsorption plate. This water electrolysis hydrogen plant through twitching the battery, makes adsorption plate and magnetism inhale the baffle separation, makes battery and support bar and bottom plate and fixed strip slide and can tear out the battery, through will hang the ring and take out from hanging the pole, can take out trachea and air intake fill, wrench movement third connecting pipe can detach the notes liquid fill to reach and be convenient for carry out the effect of nimble dismouting to a plurality of subassemblies in a flexible way, it is more convenient to use.
However, in the prior art, the PEM electrolytic hydrogen production device has a large overall volume, which is mostly similar to the above patent, and lacks of a maintenance mechanism, so that the equipment maintenance is very inconvenient. Therefore, an electrolytic hydrogen production device with a maintenance mechanism is needed.
Disclosure of Invention
In view of this, a PEM electrolytic hydrogen production device convenient to overhaul is needed to be provided, which solves the technical problem that the hydrogen production device in the prior art lacks an overhaul mechanism.
In order to achieve the technical purpose, the technical scheme of the invention provides a PEM electrolytic hydrogen production device convenient to overhaul, which comprises a PEM electrolytic hydrogen production main body and further comprises:
the fixed frame surrounds the bottom of the PEM electrolytic hydrogen production main body;
the maintenance mechanism comprises a connecting seat, a carrying frame, a carrying plate and a moving part, wherein one end of the connecting seat is connected to the fixed frame in a sliding mode, the carrying frame is connected to the other end of the connecting seat, the carrying plate is connected to the carrying frame in a sliding mode, and the moving part is arranged on the carrying frame and used for enabling the carrying frame to move along the fixed frame;
and the lifting mechanism is arranged on the carrying frame and connected to the carrying plate, and is used for driving the carrying plate to lift.
Further, elevating system includes support frame, screw rod, elevator motor, connecting block and direction slide bar, the support frame connect in take the carrier, the screw rod rotate connect in the support frame, elevator motor set up in support frame and its output are connected to the screw rod, the one end set up threaded hole of connecting block, the other end are connected to carry the thing board, the connecting block warp screw hole threaded connection in the screw rod, the direction slide bar connect in the support frame is relative screw rod parallel arrangement, the direction slide bar is worn to establish the connecting block.
Furthermore, the fixing frame further comprises a plurality of positioning columns, and the positioning columns are arranged on the fixing frame in a surrounding mode at intervals.
Further, the lifting device comprises a locking mechanism, the locking mechanism comprises a lifting block, a locking motor, a driving gear, two racks, two clamping ends and a lifting end of the lifting block, the lifting block is connected to the carrying frame in a sliding manner, a groove is formed in the top of the lifting block, the locking motor is arranged on the lifting block, the output end of the locking motor is inserted into the groove, the driving gear is arranged in the groove and sleeved at the output end of the locking motor, the two racks are respectively arranged on two sides of the driving gear and meshed with the driving gear, the racks are connected to the inner wall of the groove in a sliding manner, the two clamping ends are arranged at the bottom of the lifting block and respectively connected to the two racks, the two racks can be driven to move relatively through the locking motor so as to drive the two clamping ends to clamp the positioning column, and the lifting end is arranged on the carrying frame and connected to the lifting block, the lifting block is driven to move up and down.
Furthermore, the lifting end comprises a fixing plate, a U-shaped seat, a transmission rod, two transmission gears, a derivation rack, a driving motor and a driving wheel, the fixing plate is connected to the supporting frame, the U-shaped seat is connected to the fixing plate, the transmission rod transversely penetrates through the U-shaped seat, the two transmission gears are respectively connected to two ends of the transmission rod, one end of the derivation rack is connected to the lifting block, the other end of the derivation rack is meshed with one of the transmission gears, the driving motor is arranged on the fixing plate, and the driving wheel is connected to the output end of the driving motor and meshed with the other transmission gear to drive the derivation rack to drive the lifting block to move up and down.
Further, fixed frame is opened and is equipped with the spout, still includes link gear, link gear includes linkage board, pivot and slider, the one end of linkage board is connected to the connecting seat, the pivot rotate connect in the other end of linkage board, the slider connect in pivot and rotate connect in the spout.
Furthermore, the device also comprises a limiting rod, wherein the limiting rod is arranged at the bottom of the fixing plate and is arranged opposite to the derivation rack.
Further, the moving member is a roller, and the roller is arranged at the bottom of the carrying frame.
Furthermore, one end of the clamping end is arc-shaped.
Furthermore, the height of the positioning column is smaller than the highest lifting height of the lifting block.
Compared with the prior art, the invention has the beneficial effects that: the hydrogen production device is provided with the maintenance mechanism, the maintenance mechanism is connected with the electrolytic hydrogen production main body, the electrolytic hydrogen production main body is also provided with the moving structure and the lifting structure, the maintenance mechanism is provided with the object carrying plate, an operator can take the maintenance mechanism, and the moving structure and the lifting structure are matched with each other, so that the operator can be moved to a place needing maintenance on the electrolytic hydrogen production main body according to the requirement, the structure is simple, and the use is convenient.
Drawings
FIG. 1 is a schematic diagram of a PEM electrolytic hydrogen production device which is convenient to overhaul according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a repair mechanism in a PEM electrolytic hydrogen production device convenient to repair according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a lifting mechanism in a PEM electrolytic hydrogen production device convenient to overhaul according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a locking mechanism in a PEM electrolytic hydrogen production device convenient to overhaul according to an embodiment of the invention;
FIG. 5 is a schematic structural diagram of a lifting end in a PEM electrolytic hydrogen production device convenient to overhaul according to an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a linkage mechanism in a PEM electrolytic hydrogen production device convenient to overhaul according to an embodiment of the invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1, the invention provides a PEM electrolytic hydrogen production device convenient for maintenance, which comprises a PEM electrolytic hydrogen production main body 100, and further comprises a fixed frame 1, a maintenance mechanism 2 and a lifting mechanism 3, wherein the fixed frame 1 is installed on the PEM electrolytic hydrogen production main body 100, the maintenance mechanism 2 is connected to the fixed frame 1 in a sliding manner, and the lifting mechanism 3 is arranged on the maintenance mechanism 2.
The PEM electrolytic hydrogen production main body 100 is used for completing water electrolysis hydrogen production work, the fixed frame 1 is installed on the PEM electrolytic hydrogen production main body 100 and is used for being connected with the maintenance mechanism 2, the maintenance mechanism 2 is used for carrying an operator and moving to a place where the PEM electrolytic hydrogen production main body 100 needs to be maintained, the lifting mechanism 3 is installed on the maintenance mechanism 2 and is used for adjusting the height of the maintenance mechanism 2, so that the PEM electrolytic hydrogen production main body 100 is suitable for being used for large-size PEM electrolytic hydrogen production main body 100, and the operation and maintenance work of the operator are facilitated.
The fixed frame 1 surrounds the bottom of the PEM electrolytic hydrogen production main body 100; the fixed frame 1 is further provided with a plurality of positioning columns 11, and the positioning columns 11 are arranged around the fixed frame 1 at intervals.
Referring to fig. 2, the maintenance mechanism 2 includes a connecting seat 21, a carrying frame 22, a carrying board 23 and a moving member 24, one end of the connecting seat 21 is slidably connected to the fixed frame 1, the carrying frame 22 is connected to the other end of the connecting seat 21, the carrying board 23 is slidably connected to the carrying frame 22, the moving member 24 is disposed on the carrying frame 22, the carrying board 23 is used for carrying an operator, a protection fence is further disposed on the carrying board 23, the moving member 24 is a roller, the roller is disposed at the bottom of the carrying frame 22, and is used for moving the carrying frame 22 relative to the fixed frame 1, and an engine can be further disposed on the carrying frame 22 for driving the carrying frame 22 to move.
Referring to fig. 3, elevating system 3 includes support frame 31, screw rod 32, elevator motor 33, connecting block 34 and direction slide bar 35, support frame 31 connect in take up frame 22, screw rod 32 rotate connect in support frame 31 and vertical connect in take up frame 22, elevator motor 33 set up in support frame 31 and its output are connected to screw rod 32, threaded hole is seted up to connecting block 34 one end, the other end is connected to carry thing board 23, connecting block 34 warp screw hole threaded connection in screw rod 32, direction slide bar 35 connect in support frame 31 and relative screw rod 32 parallel arrangement, direction slide bar 35 wears to establish connecting block 34. Can control screw rod 32 through elevator motor 33 and rotate, screw rod 32 can drive connecting block 34 and carry thing board 23 and rotate, but guide slide bar 35 wears to establish connecting block 34, has restricted connecting block 34's rotation and has formed the screw rod transmission structure, and at this moment, connecting block 34 can follow screw rod 32 oscilaltion to it goes up and down to drive and carry thing board 23, with this height of carrying thing board 23 of adjusting, can transport appointed position on PEM electrolysis hydrogen manufacturing main part 100 with operating personnel.
Referring to fig. 4, the hydrogen production apparatus further includes a locking mechanism 4, the locking mechanism 4 includes a lifting block 41, a locking motor 42, a driving gear 43, two racks 44, two clamping ends 45 and a lifting end 46 thereof, the lifting block 41 is slidably connected to the carrying frame 22 and the top thereof is provided with a groove 411, the locking motor 42 is mounted on the top of the lifting block 41 through a mounting bracket and the output end thereof is vertically inserted into the groove 411, the driving gear 43 is internally disposed in the groove 411 and sleeved at the output end of the locking motor 42, the two racks 44 are respectively disposed on two sides of the driving gear 43 and engaged with the driving gear 43, the racks 44 are slidably connected to the inner wall of the groove 411, the two clamping ends 45 are disposed at the bottom of the lifting block 41 and penetrate through the lifting block 41 and are respectively connected to the two racks 44, and the two racks 44 can be driven to relatively move by the locking motor 42, for driving the two clamping ends 45 to clamp the positioning column 11, the lifting end 46 is disposed on the mounting frame 22 and connected to the lifting block 41, so as to drive the lifting block 41 to move up and down. Wherein, the one end of exposed core 45 sets up to the arc, makes things convenient for it to press from both sides tight reference column 11, just the height of reference column 11 is less than the highest elevating height of elevator 41, during initial condition, exposed core 45 is located the top of reference column 11, carry on frame 22 and can move along fixed frame 1 through gyro wheel 24, after carrying on frame 22 removes to appointed position, through elevator 46 control elevator 41 and exposed core 45 decline for two exposed cores 45 are located the both sides of reference column 11 respectively, rethread locking motor 42 drives driving gear 43 and rotates, driving gear 43 then drives two racks 44 and exposed core 45 relative movement, then can control two exposed cores 45 and press from both sides tight reference column 11, with this fixed carrier 22, prevent it from removing once more when operating personnel overhaul equipment.
Referring to fig. 5, the lifting end 46 includes a fixing plate 461, a U-shaped seat 462, a transmission rod 463, two transmission gears 464, a derivation rack 465, a driving motor 466 and a driving wheel 467, the fixing plate 461 is connected to the supporting frame 31, the U-shaped seat 462 is connected to the fixing plate 461, the transmission rod 463 transversely penetrates through the U-shaped seat 462, the two transmission gears 464 are respectively connected to two ends of the transmission rod 463, one end of the derivation rack 465 is connected to the lifting block 41, the other end of the derivation rack 465 is meshed with one of the transmission gears 464, the driving motor 466 is disposed on the fixing plate 461, and the driving wheel 467 is connected to an output end of the driving motor 466 and meshed with the other transmission gear 464, so as to drive the derivation rack 465 to drive the lifting block 41 to move up and down. The fixing plate 461 is further provided with a limiting rod 468, the limiting rod 468 is mounted at the bottom of the fixing plate and is arranged opposite to the derivation rack 465, and is used for limiting the lifting heights of the derivation rack 465 and the lifting block 41, when the lifting block 41 needs to be controlled to move up and down, the driving motor 466 is started, the driving motor 466 drives the driving wheel 467 to rotate, the driving wheel 467 drives the transmission gear 464 and the transmission rod 463 to rotate, so that the transmission gear 464 is controlled to drive the derivation rack 465 to lift, the derivation rack 465 can drive the lifting block 41 to lift, thereby lifting of the two clamping ends 45 is completed, and the clamping ends 45 are not interfered by the positioning column 11 when the carrying frame 22 moves.
Referring to fig. 6, as a preferred embodiment, the fixed frame 1 is further provided with a chute 12, the hydrogen production apparatus further includes a linkage mechanism 5, the linkage mechanism 5 includes a linkage plate 51, a rotation shaft 52 and a sliding sheet 53, one end of the linkage plate 51 is connected to the connection seat 21, the rotation shaft 52 is rotatably connected to the other end of the linkage plate 51, and the sliding sheet 53 is connected to the rotation shaft 52 and rotatably connected to the chute 12. Wherein, the diameter of the sliding piece 53 is determined according to the size of the sliding chute 12, the sliding piece 53 is rotatably inserted into the sliding chute 12, and is also connected to the carrying frame 22, and can play a role of guiding the carrying frame 22 to move along the fixed frame 1.
The working principle of the embodiment provided by the invention is as follows: the hydrogen production device is provided with a fixed frame and an overhauling mechanism, the overhauling mechanism mainly comprises a carrying frame and a carrying plate capable of carrying people, the carrying frame is provided with a lifting mechanism and a locking mechanism, the bottom of the carrying frame is also provided with a roller and is connected with the fixed frame through a linkage mechanism, the carrying frame can move to a position needing to be overhauled of an electrolytic hydrogen production main body through the roller, then the lifting mechanism is used for controlling the carrying plate to lift, the carrying plate is carried with an operator to a required height, and then the locking mechanism is used for fixing the carrying frame to prevent the carrying frame from deviating.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. A PEM electrolytic hydrogen production device convenient to overhaul comprises a PEM electrolytic hydrogen production main body, and is characterized by also comprising:
the fixed frame surrounds the bottom of the PEM electrolytic hydrogen production main body;
the maintenance mechanism comprises a connecting seat, a carrying frame, a carrying plate and a moving part, wherein one end of the connecting seat is connected to the fixed frame in a sliding mode, the carrying frame is connected to the other end of the connecting seat, the carrying plate is connected to the carrying frame in a sliding mode, and the moving part is arranged on the carrying frame and used for enabling the carrying frame to move along the fixed frame;
and the lifting mechanism is arranged on the carrying frame and connected to the carrying plate, and is used for driving the carrying plate to lift.
2. An easy-to-service PEM electrolytic hydrogen plant of claim 1, characterized in that: elevating system includes support frame, screw rod, elevator motor, connecting block and direction slide bar, the support frame connect in take the carrier, the screw rod rotate connect in the support frame, elevator motor set up in support frame and its output are connected to the screw rod, the one end set up threaded hole of connecting block, the other end are connected to carry the thing board, the connecting block warp screw hole threaded connection in the screw rod, the direction slide bar connect in the support frame is relative screw rod parallel arrangement, the direction slide bar is worn to establish the connecting block.
3. The easy-to-service PEM electrolytic hydrogen plant of claim 2, characterized in that: still include the reference column, the quantity of reference column is a plurality of, and is a plurality of the reference column encircles and the interval set up in fixed frame.
4. An easy-to-service PEM electrolytic hydrogen plant according to claim 3, characterized in that: the lifting device is characterized by further comprising a locking mechanism, the locking mechanism comprises a lifting block, a locking motor, a driving gear, two racks, two clamping ends and lifting ends of the two clamping ends, the lifting block is connected to the carrying frame in a sliding mode, a groove is formed in the top of the lifting block, the locking motor is arranged on the lifting block, the output end of the locking motor is inserted into the groove, the groove is arranged in the driving gear in a sleeved mode, the two racks are arranged on the two sides of the driving gear respectively and are meshed with the driving gear, the racks are connected to the inner wall of the groove in a sliding mode, the two clamping ends are arranged at the bottom of the lifting block and are connected to the two racks respectively, the two racks can be driven to move relatively through the locking motor so as to drive the two clamping ends to clamp the positioning column, and the lifting ends are arranged on the carrying frame and are connected to the lifting block, the lifting block is driven to move up and down.
5. An easy-to-service PEM electrolytic hydrogen plant according to claim 4, characterized in that: the lifting end comprises a fixing plate, a U-shaped seat, a transmission rod, two transmission gears, a derivation rack, a driving motor and a driving wheel, the fixing plate is connected to the supporting frame, the U-shaped seat is connected to the fixing plate, the transmission rod transversely penetrates through the U-shaped seat, the two transmission gears are respectively connected to the two ends of the transmission rod, one end of the derivation rack is connected to the lifting block, the other end of the derivation rack is meshed with one of the transmission gears, the driving motor is arranged on the fixing plate, the driving wheel is connected to the output end of the driving motor and meshed with the other transmission gear, and the derivation rack is driven to move the lifting block up and down.
6. An easy-to-service PEM electrolytic hydrogen plant of claim 1, characterized in that: the fixed frame is opened and is equipped with the spout, still includes link gear, link gear includes linkage plate, pivot and slider, the one end of linkage plate is connected to the connecting seat, the pivot rotate connect in the other end of linkage plate, the slider connect in pivot and rotate connect in the spout.
7. An easy-to-service PEM electrolytic hydrogen plant of claim 5, characterized in that: the device also comprises a limiting rod, wherein the limiting rod is arranged at the bottom of the fixing plate and is opposite to the derivation rack.
8. An easy-to-service PEM electrolytic hydrogen plant of claim 1, characterized in that: the moving member is a roller, and the roller is arranged at the bottom of the carrying frame.
9. An easy-to-service PEM electrolytic hydrogen plant according to claim 4, characterized in that: one end of the clamping end is arc-shaped.
10. An easy-to-service PEM electrolytic hydrogen plant according to claim 4, characterized in that: the height of the positioning column is smaller than the highest lifting height of the lifting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111557215.XA CN114086199B (en) | 2021-12-18 | 2021-12-18 | PEM (proton exchange membrane) electrolytic hydrogen production device convenient to overhaul |
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|---|---|---|---|
| CN202111557215.XA CN114086199B (en) | 2021-12-18 | 2021-12-18 | PEM (proton exchange membrane) electrolytic hydrogen production device convenient to overhaul |
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| CN114086199A true CN114086199A (en) | 2022-02-25 |
| CN114086199B CN114086199B (en) | 2022-11-29 |
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| CN112027982A (en) * | 2020-08-17 | 2020-12-04 | 顾瑞升 | Lifting type power equipment maintenance device and use method thereof |
| CN212982412U (en) * | 2020-08-27 | 2021-04-16 | 杭州徕科光电有限公司 | Road lamp overhauling device |
| CN213824702U (en) * | 2020-11-04 | 2021-07-30 | 北京首钢气体有限公司 | Maintenance and gas supply control device for hydrogen production |
| CN214937843U (en) * | 2021-07-01 | 2021-11-30 | 乐氢(上海)能源科技有限公司 | PEM (proton exchange membrane) electrolytic cell for producing hydrogen from pure water |
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