CN211118735U - Hydrogen supply system - Google Patents
Hydrogen supply system Download PDFInfo
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- CN211118735U CN211118735U CN201921904497.4U CN201921904497U CN211118735U CN 211118735 U CN211118735 U CN 211118735U CN 201921904497 U CN201921904497 U CN 201921904497U CN 211118735 U CN211118735 U CN 211118735U
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- hydrogen
- cylinder
- hydrogen supply
- fuel cell
- supply system
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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
- Y02E60/32—Hydrogen storage
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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
- Y02E60/34—Hydrogen distribution
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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
- Y02E60/50—Fuel cells
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a hydrogen supply system, including hydrogen cylinder, adapter, pressure-increasing piece, inflatable spare, hydrogen supply bottle, bottle valve gear and fuel cell, the export of hydrogen cylinder with the one end of adapter is connected, the other end of adapter with the entry linkage of pressure-increasing piece, the export of pressure-increasing piece with inflatable spare connects, bottle valve gear connect in the bottleneck department of hydrogen supply bottle, just be equipped with the inflation inlet on the bottle valve gear, inflatable spare connect in the inflation inlet, with will hydrogen in the hydrogen cylinder the bottleneck fills in the hydrogen supply bottle, still be equipped with the gas outlet on the bottle valve gear, the gas outlet pass through the pipeline with fuel cell connects, with to fuel cell supplies hydrogen. Therefore, the technical scheme provided by the utility model will the hydrogen supply bottle is as the buffer flask for hydrogen can not direct to fuel cell air feed, with the potential safety hazard when reducing hydrogen gas bottle hydrogen supply.
Description
Technical Field
The utility model relates to a hydrogen supply technical field, in particular to hydrogen supply system.
Background
Generally, a fuel cell is a device that directly converts chemical energy of fuel into electrical energy through an electrochemical reaction without combustion. Such fuel cells are zero emission power generation systems used as vehicle power sources, laser device power sources, and the like. In a fuel cell, a fuel cell stack including a fuel cell assembly in which a plurality of unit cells are stacked and other peripheral elements generates electricity, hydrogen is supplied to an anode as a fuel gas, and oxygen is supplied to a cathode as an oxidant.
In a fuel cell vehicle, a hydrogen storage tank is mounted for storing hydrogen gas supplied from a hydrogen refueling station located outside the vehicle and supplying the hydrogen gas to a fuel cell stack for generating electricity. However, the characteristics of hydrogen gas such as leakage, explosiveness, hydrogen brittleness and the like cause certain potential safety hazards to fuel cell vehicles, and the safety of the new energy power system becomes a concern.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydrogen supply system has solved the big problem of potential safety hazard when hydrogen storage tank supplies hydrogen to fuel cell stack.
In order to achieve the purpose, the utility model provides a hydrogen supply system, which comprises a hydrogen cylinder, an adapter, a pressurizing piece, an inflating piece, a hydrogen supply cylinder, a cylinder valve device and a fuel cell;
the outlet of the hydrogen cylinder is connected with one end of the adapter, the other end of the adapter is connected with the inlet of the pressurizing piece, and the outlet of the pressurizing piece is connected with the inflating piece;
the cylinder valve device is connected to the bottleneck of the hydrogen supply cylinder, an inflation inlet is arranged on the cylinder valve device, and the inflation piece is connected to the inflation inlet so as to inflate the bottleneck of the hydrogen in the hydrogen cylinder into the hydrogen supply cylinder;
and the cylinder valve device is also provided with an air outlet, and the air outlet is connected with the fuel cell through a pipeline so as to supply hydrogen to the fuel cell.
Further, the hydrogen supply system further comprises a pneumatic quick connector, and the pneumatic quick connector is connected between the air outlet and the fuel cell.
Further, the pneumatic quick coupling is provided with a pressure testing device for testing the hydrogen pressure of the gas outlet, and the pressure testing device is located at one end of the pneumatic quick coupling connected with the gas outlet.
Further, the hydrogen supply system further comprises a safety valve, and the safety valve is arranged between the pneumatic quick connector and the fuel cell.
Further, the hydrogen supply system also comprises a connecting piece with three ends, wherein the first end of the connecting piece is connected to the adapter, the second end of the connecting piece is connected to the inlet of the pressurizing piece, and the third end of the connecting piece is connected with a discharge pipeline.
Further, the connecting piece also comprises an exhaust switch, and the exhaust switch is arranged at the third end and used for opening or closing a pipeline between the third end and the discharge pipeline.
Further, the hydrogen supply system further comprises a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is arranged at the inlet of the pressurizing piece, and the second pressure sensor is arranged at the outlet of the pressurizing piece.
Further, a third pressure sensor for detecting the pressure of the hydrogen in the hydrogen supply bottle is arranged on the bottle valve device.
Further, the hydrogen supply system further comprises a power supply circuit, and the power supply circuit is electrically connected with the pressure boosting piece.
Further, the hydrogen cylinder is made of light polymer or composite material, and the hydrogen supply cylinder is made of light polymer or composite material.
The embodiment of the utility model provides an in, the hydrogen supply system includes hydrogen cylinder, adapter, increase parts, aerifys piece, hydrogen supply bottle, bottle valve device and fuel cell, the export of hydrogen cylinder with the one end of adapter is connected, the other end of adapter with the entry linkage of increase parts, the export of increase parts with aerify the piece and connect, bottle valve device connect in the bottleneck department of hydrogen supply bottle, just be equipped with the inflation inlet on the bottle valve device, aerify the piece connect in the inflation inlet, in order to incite somebody to action hydrogen in the hydrogen cylinder the bottleneck fills in the hydrogen supply bottle, still be equipped with the gas outlet on the bottle valve device, the gas outlet pass through the pipeline with fuel cell connects, in order to fuel cell supplies hydrogen. Therefore, the technical scheme provided by the utility model can pass through the adapter the supercharging piece the piece of inflating and the cylinder valve device will hydrogen in the hydrogen cylinder fills extremely supply the hydrogen cylinder, with after the hydrogen cylinder is full of hydrogen the fuel cell hydrogen supply is about to supply the hydrogen cylinder as the buffer flask for hydrogen can not direct to fuel cell air feed, potential safety hazard when reducing hydrogen cylinder hydrogen supply.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments or examples of the present invention, the drawings used in the embodiments or examples will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a hydrogen supply system according to an embodiment of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", "third", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a hydrogen supply system for supplying hydrogen gas to a fuel cell, which is a fuel cell stack in this embodiment.
In one embodiment, as shown in fig. 1, the hydrogen supply system includes a hydrogen cylinder 1, an adapter 2, a pressurizing member 3, an inflation member 4, a hydrogen supply cylinder 5, a cylinder valve device 6, and a fuel cell 7. The outlet of the hydrogen cylinder 1 is connected with one end of the adapter 2, the other end of the adapter 2 is connected with the inlet of the pressurizing piece 3, the outlet of the pressurizing piece 3 is connected with the inflating piece 4, the cylinder valve device 6 is connected with the cylinder opening of the hydrogen supply cylinder 5, an inflating opening 61 is arranged on the cylinder valve device 6, and the inflating piece 4 is connected with the inflating opening 61 so as to fill the hydrogen in the hydrogen cylinder 1 into the cylinder opening of the hydrogen supply cylinder 2. The hydrogen cylinder 1 is used for storing hydrogen, the hydrogen cylinder 1 is communicated with the pressurizing piece 3 through a high-pressure metal hose, the adapter 2 is arranged between the hydrogen cylinder 2 and the pressurizing piece 3, and the hydrogen stored in the hydrogen cylinder 1 is transmitted to the pressurizing piece 3 through the adapter 2.
Further, the pressurizing member 3 is communicated with the inflating member 4 through a high-pressure metal hose, the inflating member 4 is directly connected to the 61 of the inflating port of the cylinder valve device 6, and the pressurizing member 3 is used for increasing the pressure of the hydrogen gas filled in the hydrogen supply cylinder 5, so that the hydrogen gas in the hydrogen cylinder 1 can be filled in the hydrogen supply cylinder 5 along the pressurizing member 3, the inflating member 4 and the cylinder valve device 6. Wherein, the cylinder valve device 6 is used for separating or communicating the inflation port with the cylinder space of the hydrogen supply cylinder 5, that is, when the hydrogen supply cylinder 5 needs to be inflated, the cylinder valve device 6 is opened to communicate the inflation port 61 with the cylinder space of the hydrogen supply cylinder 5; after the hydrogen supply bottle 5 is completely inflated, the bottle valve device 6 is closed, so that the inflation port 61 is separated from the bottle inside space of the hydrogen supply bottle 5.
Further, the cylinder valve device 6 is further provided with an air outlet 62, the air outlet 62 is connected with the fuel cell 7 through a pipeline to supply hydrogen to the fuel cell 7, so that the hydrogen in the hydrogen cylinder 1 can be filled into the hydrogen supply cylinder 5 through the adapter 2, the pressurizing member 3, the inflating member 4 and the cylinder valve device 6, and hydrogen is supplied to the fuel cell 7 after the hydrogen supply cylinder 5 is filled with hydrogen. Wherein the pipeline is a high-pressure metal pipeline.
Further, the hydrogen cylinder 1 and the hydrogen supply cylinder 5 are made of the same material, that is, the hydrogen cylinder 1 is made of a light polymer or a composite material, and the hydrogen supply cylinder 5 is made of a light polymer or a composite material. However, in other embodiments, the hydrogen cylinders 1 and the hydrogen supply cylinders 5 may be made of other materials, and are not limited herein.
In the embodiment of the present invention, the hydrogen supply system includes a hydrogen cylinder 1, an adapter 2, a pressurizing member 3, an inflation member 4, a hydrogen supply cylinder 5, a cylinder valve device 6, and a fuel cell 7. The outlet of the hydrogen cylinder 1 is connected with one end of the adapter 2, the other end of the adapter 2 is connected with the inlet of the pressurizing piece 3, the outlet of the pressurizing piece 3 is connected with the inflating piece 4, the cylinder valve device 6 is connected with the cylinder opening of the hydrogen supply cylinder 5, an inflating opening 61 is arranged on the cylinder valve device 6, the inflating piece 4 is connected with the inflating opening 61 so as to fill the hydrogen in the hydrogen cylinder 1 into the cylinder opening of the hydrogen supply cylinder 2, an air outlet 62 is further arranged on the cylinder valve device 6, and the air outlet 62 is connected with the fuel cell 7 through a pipeline so as to supply hydrogen to the fuel cell 7. Therefore, the utility model provides a technical scheme can pass through adapter 2 boost piece 3 inflate 4 and cylinder valve gear 6 will hydrogen in the hydrogen cylinder 1 fills into extremely supply hydrogen bottle 5, with after supply hydrogen bottle 5 is full of hydrogen gas fuel cell 7 supplies hydrogen, is about to supply hydrogen bottle 5 as the buffer flask for hydrogen can not directly to fuel cell 7 air feed reduces the potential safety hazard when hydrogen cylinder supplies hydrogen.
In one embodiment, the hydrogen supply system further comprises a pneumatic quick connector 8, and the pneumatic quick connector 8 is connected between the air outlet 62 and the fuel cell 7. Pneumatic quick-operation joint 8 is used for the quick-operation joint of air piping, pneumatic instrument to can realize intercommunication or disconnection, for example, supply hydrogen bottle 5 to suspend right when fuel cell 7 supplies hydrogen, the lasso of the main part of pneumatic quick-operation joint 8 moves when the other end, just the inside stainless steel ball that sets up of pneumatic quick-operation joint 8 rolls outwards automatically, and at this moment, the daughter of pneumatic quick-operation joint 8 is because of the mother and is broken off under the effort operation of daughter common valve spring force, and the valve of daughter and mother is closed separately promptly, blocks the flow of hydrogen in the twinkling of an eye.
Further, the cylinder valve device 6 further includes a pressure reducing valve (not shown) disposed at the gas outlet 62 to reduce the pressure of the hydrogen gas at the gas outlet 62 to the fuel cell 7, so as to ensure the pressure of the hydrogen gas supplied to the fuel cell 7, thereby improving the utilization rate of the hydrogen gas.
In one embodiment, in order to test the pressure of the hydrogen gas at the gas outlet 62, a pressure testing device (not shown) for testing the pressure of the hydrogen gas at the gas outlet 62 is disposed at the pneumatic quick coupling 8, and the pressure testing device is located at one end of the pneumatic quick coupling 8 connected to the gas outlet. The pressure testing device includes, but is not limited to, a pressure sensor, a pressure gauge, and the like, and is not limited herein.
Optionally, the pressure of the hydrogen gas at the gas outlet 62 ranges from 40KPa to 80KPa, so that the hydrogen gas supplied to the fuel cell 7 can be sufficiently combusted to save energy. In this embodiment, the pressure of the hydrogen gas at the gas outlet 62 is 60 KPa.
In one embodiment, in order to further enhance the safety performance during hydrogen supply, the hydrogen supply system further includes a safety valve 9, and the safety valve 9 is disposed between the pneumatic quick connector 8 and the fuel cell 7. The safety valve 9 is used for cutting off or communicating a pipeline between the hydrogen supply bottle 5 and the fuel cell 7 according to the working pressure and the temperature in the hydrogen supply bottle 5, namely when the working pressure and the temperature in the hydrogen supply bottle 5 are too high and hydrogen leakage or other accidents are possible to happen, the safety valve 9 can be closed to cut off the pipeline between the hydrogen supply bottle 5 and the fuel cell 7 to prevent accidents.
In one embodiment, the hydrogen supply system further comprises a connector 10 having three ends, a first end of the connector 10 is connected to the adapter 2, a second end of the connector 10 is connected to the inlet of the plenum 3, and a third end of the connector 10 is connected to a discharge pipe. Namely, after the hydrogen supply cylinder 5 is filled with hydrogen, the cylinder valve device 6 at the cylinder mouth of the hydrogen supply cylinder 5 is closed, the switch of the hydrogen cylinder 1 is closed, and the pressurizing piece 3 is closed, so that residual hydrogen in the pipeline can still exist, namely residual hydrogen can be discharged through the discharge pipeline connected with the third end of the connecting piece 10.
Further, the connector 10 further comprises an exhaust switch (not shown) disposed at the third end for opening or closing a pipeline between the third end and the exhaust pipeline. When the exhaust switch is turned on, communicating a pipeline between the third end and the exhaust pipeline to exhaust residual hydrogen; when the exhaust switch is turned off, the line between the third end and the exhaust line is disconnected, and at this time, the operation of filling hydrogen gas into the hydrogen supply cylinder 5 by the hydrogen cylinder 1 may be performed.
In an embodiment, the hydrogen supply system further comprises a first pressure sensor 11 and a second pressure sensor 11, the first pressure sensor 11 being provided at the inlet of the plenum 3 for detecting the pressure at the inlet of the plenum 3, and the second pressure sensor 12 being provided at the outlet of the plenum 3 for detecting the pressure at the outlet of the plenum 3.
Optionally, the pressure at the inlet of the plenum 3 is less than or equal to 15MPa and the pressure at the outlet of the plenum 3 is greater than or equal to 35 MPa.
In an embodiment, the cylinder valve device 6 is further provided with a third pressure sensor (not shown) for detecting the pressure of the hydrogen gas in the hydrogen supply cylinder 5, so as to detect the pressure of the hydrogen gas in the hydrogen supply cylinder 5 in real time through the third pressure sensor, when the pressure of the hydrogen gas in the hydrogen supply cylinder 5 reaches a predetermined value, the hydrogen gas in the hydrogen supply cylinder 5 is filled, the switch of the hydrogen supply cylinder 5 is closed, then the switch of the hydrogen cylinder 1 and the pressurization work of the pressurization member 3 are closed, and finally, the exhaust switch provided at the third end of the connecting member 10 is opened, so as to exhaust the residual hydrogen gas from the exhaust pipeline.
In an embodiment, the hydrogen supply system further includes a power supply circuit (not shown), and the power supply circuit is electrically connected to the pressurizing part 3 to cut off or connect the pressurizing operation of the pressurizing part 3 through the power supply circuit, that is, when the hydrogen supply bottle 5 is inflated, the power supply circuit energizes the pressurizing part 3 to operate the pressurizing part 3, that is, to provide inflation pressure for the inflation of the hydrogen supply bottle 5.
In the embodiment of the present invention, the hydrogen supply system includes a hydrogen cylinder 1, an adapter 2, a pressurizing member 3, an inflation member 4, a hydrogen supply cylinder 5, a cylinder valve device 6, and a fuel cell 7. The outlet of the hydrogen cylinder 1 is connected with one end of the adapter 2, the other end of the adapter 2 is connected with the inlet of the pressurizing piece 3, the outlet of the pressurizing piece 3 is connected with the inflating piece 4, the cylinder valve device 6 is connected with the cylinder opening of the hydrogen supply cylinder 5, an inflating opening 61 is arranged on the cylinder valve device 6, the inflating piece 4 is connected with the inflating opening 61 so as to fill the hydrogen in the hydrogen cylinder 1 into the cylinder opening of the hydrogen supply cylinder 2, an air outlet 62 is further arranged on the cylinder valve device 6, and the air outlet 62 is connected with the fuel cell 7 through a pipeline so as to supply hydrogen to the fuel cell 7. Therefore, the utility model provides a technical scheme can pass through adapter 2 boost piece 3 inflate 4 and cylinder valve gear 6 will hydrogen in the hydrogen cylinder 1 fills into extremely supply hydrogen bottle 5, with after supply hydrogen bottle 5 is full of hydrogen gas fuel cell 7 supplies hydrogen, is about to supply hydrogen bottle 5 as the buffer flask for hydrogen can not directly to fuel cell 7 air feed reduces the potential safety hazard when hydrogen cylinder supplies hydrogen.
The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the concepts of the present invention utilize the equivalent transformation made by the contents of the specification and the drawings, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A hydrogen supply system is characterized by comprising a hydrogen cylinder, an adapter, a pressurizing piece, an inflating piece, a hydrogen supply cylinder, a cylinder valve device and a fuel cell;
the outlet of the hydrogen cylinder is connected with one end of the adapter, the other end of the adapter is connected with the inlet of the pressurizing piece, and the outlet of the pressurizing piece is connected with the inflating piece;
the cylinder valve device is connected to the bottleneck of the hydrogen supply cylinder, an inflation inlet is arranged on the cylinder valve device, and the inflation piece is connected to the inflation inlet so as to inflate the bottleneck of the hydrogen in the hydrogen cylinder into the hydrogen supply cylinder;
and the cylinder valve device is also provided with an air outlet, and the air outlet is connected with the fuel cell through a pipeline so as to supply hydrogen to the fuel cell.
2. The hydrogen supply system according to claim 1, further comprising a pneumatic quick coupling connected between the gas outlet and the fuel cell.
3. The hydrogen supply system according to claim 2, wherein the pneumatic quick coupling is provided with a pressure test device for testing the pressure of the hydrogen gas at the gas outlet, the pressure test device being located at an end of the pneumatic quick coupling connected to the gas outlet.
4. The hydrogen supply system of claim 3 further comprising a safety valve disposed between the pneumatic quick connector and the fuel cell.
5. The hydrogen supply system of claim 1 further comprising a connector having three ends, a first end of the connector being connected to the adapter, a second end of the connector being connected to the inlet of the plenum, and a third end of the connector being connected to a discharge conduit.
6. The hydrogen supply system according to claim 5, wherein the connector further comprises an exhaust switch disposed at the third end for opening or closing a line between the third end and the exhaust conduit.
7. The hydrogen supply system according to claim 1, further comprising a first pressure sensor provided at an inlet of the plenum and a second pressure sensor provided at an outlet of the plenum.
8. The hydrogen supply system according to claim 1, wherein the cylinder valve device is further provided with a third pressure sensor for detecting the pressure of hydrogen gas in the hydrogen supply cylinder.
9. The hydrogen supply system of claim 1, further comprising a power supply circuit electrically connected to the pressure increasing member.
10. The hydrogen supply system of claim 1, wherein the hydrogen cylinders are made of a light polymer or composite material and the hydrogen supply cylinders are made of a light polymer or composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921904497.4U CN211118735U (en) | 2019-11-06 | 2019-11-06 | Hydrogen supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921904497.4U CN211118735U (en) | 2019-11-06 | 2019-11-06 | Hydrogen supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211118735U true CN211118735U (en) | 2020-07-28 |
Family
ID=71688550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921904497.4U Active CN211118735U (en) | 2019-11-06 | 2019-11-06 | Hydrogen supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211118735U (en) |
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2019
- 2019-11-06 CN CN201921904497.4U patent/CN211118735U/en active Active
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