CN219603709U - Intelligent hydrogen delivery system - Google Patents
Intelligent hydrogen delivery system Download PDFInfo
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- CN219603709U CN219603709U CN202223258701.4U CN202223258701U CN219603709U CN 219603709 U CN219603709 U CN 219603709U CN 202223258701 U CN202223258701 U CN 202223258701U CN 219603709 U CN219603709 U CN 219603709U
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- hydrogen
- gas
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- electromagnetic valve
- intelligent
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 127
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 127
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000007789 gas Substances 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000001914 filtration Methods 0.000 claims abstract description 26
- 238000001035 drying Methods 0.000 claims abstract description 11
- 230000001954 sterilising effect Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 10
- 239000002912 waste gas Substances 0.000 claims description 7
- 238000005868 electrolysis reaction Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 2
- 230000003796 beauty Effects 0.000 abstract 1
- 201000010099 disease Diseases 0.000 abstract 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 150000002431 hydrogen Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model relates to an intelligent hydrogen delivery system. By adopting the intelligent hydrogen conveying system provided by the utility model, the accurate and intelligent control of the hydrogen injection flow rate and purity can be realized through the electrolytic water tank, the hydrogen water separator, the gas drying device, the gas collecting bottle, the filtering device, the hydrogen purity analyzer, the two-position three-way electromagnetic valve, the buffer gas storage tank, the sterilizing device, the pressure control valve, the flow meter, the hydrogen concentration sensor, the electromagnetic valve, the central controller and the display module which are sequentially connected with the hydrogen main pipeline. Meanwhile, the system provided by the utility model has stronger instantaneity and controllability, and can prompt staff to intervene through the touch display screen when the system fails, and can automatically cut off the power supply of the electrolytic cell to protect the normal operation of the terminal equipment, so that the system can be widely applied to the fields of medical research, medical equipment, disease treatment and prevention, health maintenance and rehabilitation, beauty and skin care and the like.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, and particularly relates to an intelligent hydrogen delivery system.
Background
With the intensive research of hydrogen, the application of hydrogen in different fields is continuously mature and perfected, and meanwhile, the transportation mode of hydrogen is gradually focused on.
Under the current technical conditions, different hydrogen transportation modes have a certain degree of dangers. In addition, most of the existing hydrogen injection can not accurately control the flow rate, and the working difficulty is increased for staff; in the whole process, the workers are required to closely monitor and then adjust according to experience, so that the labor intensity of the workers is increased.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide an intelligent hydrogen conveying system so as to provide a device for conveying hydrogen with high accuracy and intellectualization, and the flow rate of hydrogen injection can be accurately and intelligently controlled.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an intelligent hydrogen delivery system comprises an electrolysis water tank, a hydrogen water separator, a gas drying device, a gas collecting bottle, a filtering device, a hydrogen purity analyzer, a two-position three-way electromagnetic valve, a buffer gas storage tank, a sterilizing device, a pressure control valve, a flow meter, a hydrogen concentration sensor and an electromagnetic valve which are sequentially connected with a hydrogen supply main pipeline,
the hydrogen-water separator comprises an air inlet hole, a water outlet hole and an air outlet hole;
the filtering device comprises a medium-efficiency filter screen and a high-efficiency filter screen;
the gas outlet of the hydrogen purity analyzer is communicated with the gas inlet of a two-position three-way electromagnetic valve, the first gas outlet of the two-position three-way electromagnetic valve is connected with the gas inlet of a buffer gas storage tank, and the second gas outlet of the two-position three-way electromagnetic valve is connected with the gas inlet of a waste gas collecting bottle;
the air outlet of the electromagnetic valve is connected with terminal equipment;
the system also comprises a central controller and a display module, wherein the electrolytic water tank, the filtering device, the hydrogen purity analyzer, the two-position three-way electromagnetic valve, the pressure control valve, the flow meter, the hydrogen concentration sensor and the electromagnetic valve are respectively and electrically connected with the central controller; the central controller is respectively and electrically connected with the power supply and the display module.
Further, the efficient filter screen is arranged at the air inlet end of the filter device, and the efficient filter screen is arranged at the air outlet end of the filter device;
the air inlet end of the filtering device is provided with an air inlet valve, and the air outlet end of the filtering device is provided with an air outlet valve.
Further, the air inlet valve and the air outlet valve are all electric control valves;
and the air inlet valve and the air outlet valve are respectively and electrically connected with the central controller.
Further, the air outlet of the filtering device is in through connection with the hydrogen supply main pipeline through a hydrogen supply branch pipeline provided with a one-way valve.
Further, an alarm is arranged on the hydrogen purity analyzer;
the alarm is electrically connected with the central controller.
Further, the alarm is an audible and visual alarm.
Further, a gas detection module is arranged in the buffer gas storage tank;
the gas detection module is electrically connected with the central controller.
Further, a pressure sensor is arranged in the pressure control valve;
the pressure sensor is electrically connected with the central controller.
Further, the display module adopts an LED touch display.
The beneficial effects of the utility model are as follows: by adopting the intelligent hydrogen conveying system provided by the utility model, the flow rate and purity of hydrogen injection can be accurately, intelligently and safely controlled through the electrolytic water tank, the hydrogen water separator, the gas drying device, the gas collecting bottle, the filtering device, the hydrogen purity analyzer, the two-position three-way electromagnetic valve, the buffer gas storage tank, the sterilizing device, the pressure control valve, the flow meter, the hydrogen concentration sensor, the electromagnetic valve, the central controller and the display module which are sequentially connected with the hydrogen main pipeline, and intelligent management, intelligent data processing and intelligent networking system management are realized. According to the utility model, the hydrogen electrolyzed by the electrolysis water tank passes through the hydrogen-water separator and then is subjected to drying and filtering treatment to obtain high-purity hydrogen, so that the hydrogen quality is further ensured. Meanwhile, the system provided by the utility model has stronger real-time performance and controllability, and when the system fails, various detection devices in the system can immediately detect the failure signal and send the failure signal to a touch display screen through a central controller to prompt staff to intervene; the alarm device is also used for completing alarm display and sound prompt of hydrogen failure in a hydrogen supply loop, and the power supply of the electrolytic tank can be automatically cut off to protect the normal operation of the terminal equipment.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent hydrogen transfer system according to an embodiment of the present utility model.
Fig. 2 is a schematic diagram of connection relationship between a central controller and other devices in a system according to an embodiment of the present utility model.
Fig. 3 is a schematic diagram of a composition structure of a display module according to an embodiment of the utility model.
In the figure, a 1-electrolysis water tank, a 2-hydrogen water separator, a 3-gas drying device, a 4-gas collecting bottle, a 5-filtering device, a 6-hydrogen purity analyzer, a 7-alarm, an 8-two-position three-way electromagnetic valve, a 9-waste gas collecting bottle, a 10-buffer gas storage tank, a 11-sterilization device, a 12-pressure sensor, a 13-pressure control valve, a 14-flow meter, a 15-hydrogen concentration sensor, a 16-electromagnetic valve, a 17-terminal, an air inlet of an A-two-position three-way electromagnetic valve 8, a first air outlet of a B-two-position three-way electromagnetic valve 8, a second air outlet of the C-two-position three-way electromagnetic valve 8, an air outlet of a D-waste gas collecting bottle 9, an air inlet of an E-terminal device 17, an M-medium-efficiency filter screen, an N-high-efficiency filter screen, an X-conveying pipeline and a Y-reflux pipeline.
Detailed Description
The technical solutions of the embodiments of the present utility model will be further clearly and completely described below with reference to the accompanying drawings and examples, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other examples obtained by those skilled in the art without making any inventive effort based on the examples in the present utility model are within the scope of protection of the present utility model.
It should be noted that, in the description of the embodiments of the present utility model, all directional terms (such as up, down, left, right, front, rear, horizontal, vertical … …) are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a particular state based on the orientation or positional relationship shown in the drawings, and if the particular state is changed, the directional terms are changed accordingly.
In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise specifically indicated and defined. For example, the connection can be fixed connection, detachable connection or integral connection; can be mechanically or electrically connected; can be directly connected, can be connected through an intermediary medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 3, the intelligent hydrogen delivery system provided by the embodiment of the utility model comprises an electrolytic water tank 1, a hydrogen-water separator 2, a gas drying device 3, a gas collecting bottle 4, a filtering device 5, a hydrogen purity analyzer 6, a two-position three-way electromagnetic valve 8, a buffer gas storage tank 10, a sterilizing device 11, a pressure control valve 13, a flow meter 14, a hydrogen concentration sensor 15 and an electromagnetic valve 16 which are sequentially connected by using a hydrogen supply main pipeline; wherein,,
the hydrogen-water separator 2 comprises an air inlet hole, a water outlet hole and an air outlet hole;
the gas drying device 3 is a common hydrogen drying device;
the filter device 5 comprises a medium-efficiency filter screen M and a high-efficiency filter screen N, wherein the medium-efficiency filter screen M is arranged at the air inlet end of the filter device 5, and the high-efficiency filter screen N is arranged at the air outlet end of the filter device 5; an air inlet valve is arranged at the air inlet end of the filtering device 5, and an air outlet valve is arranged at the air outlet end of the filtering device 5.
Specifically, the air inlet valve and the air outlet valve are electric control valves.
The gas outlet of the filtering device 5 is communicated with the hydrogen supply main pipeline through a hydrogen supply branch pipeline provided with a one-way valve.
The gas prepared by the electrolysis water tank 1 reaches the hydrogen-water separator 2 through the main hydrogen supply pipe (the conveying pipe X) through the air inlet hole, water separated by the hydrogen-water separator 2 is re-converged into the electrolysis water tank 1 through the water outlet hole and the reflux pipe Y, the gas separated by the hydrogen-water separator 2 enters the gas drying device 3 through the main hydrogen supply pipe through the air outlet hole for drying, the dried gas enters the gas collecting bottle 4 for buffering, the gas continuously enters the filtering device 5 through the main hydrogen supply pipe for thorough filtration, and the filtered gas is analyzed by the hydrogen purity analyzer 6.
Specifically, the filter device 5 may select a filter commonly used in the market, in the technical scheme of this embodiment, in order to further guarantee the filtering effect, the filter device 5 includes a middle-efficiency filter screen M and a high-efficiency filter screen N, the air outlet of the filter device 5 is connected with the hydrogen supply main pipe through a hydrogen supply branch pipe provided with a one-way valve, and the gas entering the filter device 5 flows into the hydrogen supply main pipe after being filtered through the double of the middle-efficiency filter screen M and the high-efficiency filter screen N, and is then conveyed to the air inlet of the hydrogen purity analyzer 6.
The gas outlet of the hydrogen purity analyzer 6 is communicated with the gas inlet A of the two-position three-way electromagnetic valve 8, the first gas outlet B of the two-position three-way electromagnetic valve 8 is connected with the gas inlet of the buffer gas storage tank 10, and the second gas outlet C of the two-position three-way electromagnetic valve 8 is connected with the gas inlet of the waste gas collecting bottle 9.
The gas outlet of the buffer gas storage tank 10 is communicated with the gas inlet of the sterilization device 11 through a main hydrogen supply pipe, the gas outlet of the sterilization device 11 is connected with a pressure control valve 13 through the main hydrogen supply pipe, and a pressure sensor 12 is arranged in the pressure control valve 13; the gas outlet of the pressure control valve 13 is connected with the gas inlet of the flow meter 14, the gas outlet of the flow meter 14 is connected with a hydrogen concentration sensor 15, and the hydrogen concentration sensor 15 is connected to a solenoid valve 16; the air outlet of the solenoid valve 16 is connected to the air inlet E of the terminal device 17.
The hydrogen purity analyzer 6 is provided with an alarm 7, if the hydrogen purity analyzer 6 fails, the alarm 7 is triggered to automatically alarm, gas is conveyed to the waste gas collecting bottle 9 through a second gas outlet C of the two-position three-way electromagnetic valve 8, and then the gas can be discharged outside through a gas outlet D of the waste gas collecting bottle 9; if the purity of the hydrogen is normal, the hydrogen from the hydrogen purity analyzer 6 is conveyed into a buffer gas storage tank 10 for buffering through a first gas outlet B of a two-position three-way electromagnetic valve 8. Then hydrogen is conveyed into the sterilizing device 11 through the main hydrogen supply pipeline for sterilizing treatment, the pressure is controlled through the pressure control valve 13, the hydrogen coming out through the pressure control valve 13 reaches the hydrogen concentration sensor 15 through the flow meter 14, and the output hydrogen is controlled by the electromagnetic valve 16 to be conveyed into the terminal equipment 17.
The electromagnetic valve 16 is a total electromagnetic valve of hydrogen in a main hydrogen supply pipeline of the system, an air inlet of the electromagnetic valve 16 is connected with an air outlet of the hydrogen concentration sensor 15, and an air outlet of the electromagnetic valve 16 is connected with an air inlet E of a terminal device 17 (application device).
Specifically, a gas detection module is disposed in the buffer gas storage tank 10.
The system also comprises a central controller and a display module. The electrolytic water tank 1, the air inlet valve and the air outlet valve of the filtering device 5, the hydrogen purity analyzer 6, the alarm 7, the two-position three-way electromagnetic valve 8, the gas detection module, the pressure sensor 12, the pressure control valve 13, the flow meter 14, the hydrogen concentration sensor 15 and the electromagnetic valve 16 are respectively and electrically connected with the central controller. The central controller is also respectively and electrically connected with a power supply and the display module. The central controller comprises a central processor, an A/D converter and a storage module, and the central processor is respectively connected with the A/D converter and the storage module. The storage module is preset with a hydrogen purity threshold value, a hydrogen supply main pipeline pressure threshold value, a flow threshold value, a hydrogen concentration threshold value and the like. The central controller can control the opening and closing of the electrolytic water tank 1, the air inlet valve and the air outlet valve of the filtering device 5, the alarm 7, the two-position three-way electromagnetic valve 8, the pressure control valve 13 and the electromagnetic valve 16, and can realize intelligent control.
When the electric signal of the hydrogen purity in the main hydrogen supply pipe detected by the hydrogen purity analyzer 6 is transmitted to the central controller and is converted into a digital signal through the A/D converter, the central processor compares the detected hydrogen purity with a preset hydrogen purity threshold value in the storage module, and if the hydrogen purity in the main hydrogen supply pipe detected by the hydrogen purity analyzer 6 is not lower than the threshold value in the storage module preset in the central controller and the hydrogen purity analyzer 6 does not have a fault, the system operates normally; if the hydrogen purity in the main hydrogen supply pipe detected by the hydrogen purity analyzer 6 is lower than a threshold value in a storage module preset in the central controller or the hydrogen purity analyzer 6 does not fail, the central controller starts the alarm 7 to remind a worker of manual intervention.
In a specific embodiment, the alarm 7 is an audible and visual alarm.
The display module is used for receiving and displaying information processed by the central processing unit from the central controller, and the displayed information comprises hydrogen purity information, gas concentration information, gas flow information, probe information of the pressure sensor and the like. In a specific embodiment, the display module employs an LED touch display. As shown in fig. 3, the display module includes a touch display screen, a control switch, a flashing light, and an interface circuit. Specifically, the touch display screen may be a liquid crystal screen, the flashing light may be an LED flashing light, and the interface circuit may be an SPI interface (serial peripheral interface). The content displayed by the touch display screen comprises: the system comprises detection result information such as gas type, purity, gas concentration value, flow, pressure, alarm threshold, fault alarm and the like, working state information of each device in the system, and selection buttons such as reset, determination, cancel and the like which need a worker to make a next decision. In addition, when the gas detection module is in a setting state, the touch display screen can be used for displaying input content and changing content.
According to the intelligent hydrogen conveying system provided by the embodiment of the utility model, in consideration of the fact that the requirement of the actual use process on the purity of hydrogen in the hydrogen supply main pipeline for an end user is high, in order to monitor the purity of hydrogen production in real time, the hydrogen supply main pipeline at the gas outlet of the filtering device 5 is provided with the hydrogen purity analyzer 6 for detecting the purity of the hydrogen in the hydrogen supply main pipeline at the position. The hydrogen purity analyzer 6 is electrically connected with the central controller, an alarm 7 is further arranged in the system, and if the hydrogen purity analyzer 6 detects that the hydrogen purity in the hydrogen supply main pipeline is lower than a threshold value in a storage module preset in the central controller or the hydrogen purity analyzer 6 fails, the central controller starts the alarm 7 to remind a worker of manual intervention. Once the system fails, various detection devices in the system can immediately detect failure signals and send the failure signals to a touch display screen for prompting through a central controller; the power supply of the electrolytic tank can be automatically cut off to protect the normal operation of the terminal equipment.
The above-described embodiments are merely illustrative of the principles of the present utility model and its effects, and are not intended to limit the utility model. Modifications and improvements to the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the present utility model. The present utility model is intended to include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. An intelligent hydrogen delivery system is characterized by comprising an electrolysis water tank (1), a hydrogen-water separator (2), a gas drying device (3), a gas collecting bottle (4), a filtering device (5), a hydrogen purity analyzer (6), a two-position three-way electromagnetic valve (8), a buffer gas storage tank (10), a sterilizing device (11), a pressure control valve (13), a flow meter (14), a hydrogen concentration sensor (15) and an electromagnetic valve (16) which are sequentially connected by using a hydrogen supply main pipeline,
the hydrogen-water separator (2) comprises an air inlet hole, a water outlet hole and an air outlet hole;
the filtering device (5) comprises a medium-efficiency filter screen (M) and a high-efficiency filter screen (N);
the gas outlet of the hydrogen purity analyzer (6) is communicated with the gas inlet (A) of the two-position three-way electromagnetic valve (8), the first gas outlet (B) of the two-position three-way electromagnetic valve (8) is connected with the gas inlet of the buffer gas storage tank (10), and the second gas outlet (C) of the two-position three-way electromagnetic valve (8) is connected with the gas inlet of the waste gas collecting bottle (9);
the air outlet of the electromagnetic valve (16) is connected with a terminal device (17);
the system also comprises a central controller and a display module, wherein the electrolytic water tank (1), the filtering device (5), the hydrogen purity analyzer (6), the two-position three-way electromagnetic valve (8), the pressure control valve (13), the flow meter (14), the hydrogen concentration sensor (15) and the electromagnetic valve (16) are respectively and electrically connected with the central controller; the central controller is respectively and electrically connected with the power supply and the display module.
2. An intelligent hydrogen delivery system according to claim 1, wherein: the medium-efficiency filter screen (M) is arranged at the air inlet end of the filter device (5), and the high-efficiency filter screen (N) is arranged at the air outlet end of the filter device (5);
an air inlet valve is arranged at the air inlet end of the filtering device (5), and an air outlet valve is arranged at the air outlet end of the filtering device (5).
3. An intelligent hydrogen delivery system according to claim 2, wherein: the air inlet valve and the air outlet valve are all electric control valves;
and the air inlet valve and the air outlet valve are respectively and electrically connected with the central controller.
4. An intelligent hydrogen delivery system according to claim 1, wherein: the gas outlet of the filtering device (5) is in through connection with the hydrogen supply main pipeline through a hydrogen supply branch pipeline provided with a one-way valve.
5. An intelligent hydrogen delivery system according to claim 1, wherein: an alarm (7) is arranged on the hydrogen purity analyzer (6);
the alarm (7) is electrically connected with the central controller.
6. The intelligent hydrogen delivery system of claim 5, wherein: the alarm (7) is an audible and visual alarm.
7. An intelligent hydrogen delivery system according to claim 1, wherein: a gas detection module is arranged in the buffer gas storage tank (10);
the gas detection module is electrically connected with the central controller.
8. An intelligent hydrogen delivery system according to claim 1, wherein: a pressure sensor (12) is arranged in the pressure control valve (13);
the pressure sensor (12) is electrically connected with the central controller.
9. An intelligent hydrogen delivery system according to claim 1, wherein: the display module adopts an LED touch display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223258701.4U CN219603709U (en) | 2022-12-06 | 2022-12-06 | Intelligent hydrogen delivery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223258701.4U CN219603709U (en) | 2022-12-06 | 2022-12-06 | Intelligent hydrogen delivery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219603709U true CN219603709U (en) | 2023-08-29 |
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ID=87754833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223258701.4U Active CN219603709U (en) | 2022-12-06 | 2022-12-06 | Intelligent hydrogen delivery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219603709U (en) |
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2022
- 2022-12-06 CN CN202223258701.4U patent/CN219603709U/en active Active
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