CN216928644U - High pressure safety vented hydrogen system - Google Patents
High pressure safety vented hydrogen system Download PDFInfo
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- CN216928644U CN216928644U CN202123193763.7U CN202123193763U CN216928644U CN 216928644 U CN216928644 U CN 216928644U CN 202123193763 U CN202123193763 U CN 202123193763U CN 216928644 U CN216928644 U CN 216928644U
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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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Abstract
The present invention provides a high pressure safety vented hydrogen system comprising: the hydrogen supply pipeline is sequentially connected with a gas cylinder, a filter and a galvanic pile, a cylinder valve is arranged at the outlet of the gas cylinder, and a pressure reducing valve and a first ball valve are sequentially arranged on the hydrogen supply pipeline between the filter and the galvanic pile; the high-pressure safe exhaust hydrogen system provided by the utility model has the advantages that through reasonable arrangement of all parts in the system, the number of equipment involved in the hydrogen pipelines is reduced, the risks of equipment failure and pipeline joint leakage are reduced, and meanwhile, the one-way valve arranged in the safety pipeline is utilized to ensure smooth high-pressure exhaust under dangerous conditions.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a high-pressure safe exhaust hydrogen system.
Background
The fuel cell is a device for directly converting chemical energy of fuel into electric energy, can continuously output the electric energy only by introducing the fuel and oxidant, has the advantages of high energy conversion rate, cleanness, environmental protection and no need of charging, and has become an important direction for the development of new energy automobiles due to the characteristics of long endurance and short hydrogenation time of fuel cell automobiles.
In the hydrogen system of the fuel cell in the prior art, a mode that a high-pressure exhaust pipeline is directly connected with a low-pressure exhaust pipeline is often adopted, for example, in chinese patent CN208014810U, when the high-pressure pipeline is discharged, the safety valve in the low-pressure pipeline is directly impacted, which is extremely dangerous, and in addition, the equipment redundancy in the hydrogen-involved pipeline greatly increases the risks of equipment failure and pipeline joint leakage.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides a high-pressure safe exhaust hydrogen system, which reduces the number of devices in each hydrogen-related pipeline and ensures smooth high-pressure exhaust in dangerous situations.
In order to solve the above-mentioned technical problem, the present invention provides a high-pressure safety-exhausted hydrogen system, comprising:
the hydrogen supply device comprises a hydrogen supply pipeline, and a gas cylinder, a filter and a galvanic pile which are sequentially connected with each other and arranged on the hydrogen supply pipeline, wherein a cylinder valve is arranged at the outlet of the gas cylinder, and a pressure reducing valve and a first ball valve are sequentially arranged on the hydrogen supply pipeline between the filter and the galvanic pile;
and one end of the safety pipeline is communicated with the hydrogen supply pipeline between the pressure reducing valve and the first ball valve, the other end of the safety pipeline is communicated with the atmosphere, and a safety valve and a first one-way valve are sequentially arranged on the safety pipeline.
Preferably, the pressure reducing valve is a mechanical pressure reducing valve, and under the condition that the maximum flow of the mechanical pressure reducing valve can meet the requirement of rear-end gas consumption, the flow of the rear end of the mechanical pressure reducing valve can adjust the characteristic of change in real time along with the change of the gas consumption, so that flow control parts such as a flow sensor and the like and a corresponding control circuit are omitted.
Preferably, the high-pressure safe exhaust hydrogen system further comprises a controller, wherein the pressure reducing valve is electrically connected with the controller, and normal hydrogen supply is realized through the controller.
Preferably, still be provided with low pressure sensor and high pressure sensor on the hydrogen supply pipeline, low pressure sensor and high pressure sensor link to each other with the controller electrical property, monitor the gas circuit pressure of the hydrogen system of high pressure safety exhaust in real time through the controller.
Preferably, the high-pressure safe exhaust hydrogen system further comprises an evacuation pipeline, one end of the evacuation pipeline is communicated with the hydrogen supply pipeline between the pressure reducing valve and the first ball valve, the other end of the evacuation pipeline is communicated with the atmosphere, a second ball valve is arranged on the evacuation pipeline, hydrogen in the pipeline is manually discharged into the atmosphere through the evacuation pipeline, wherein the gas path sequentially passes through the gas cylinder, the cylinder valve, the filter, the pressure reducing valve and the second ball valve, and finally the hydrogen is discharged into the atmosphere.
Preferably, a temperature sensor is arranged on the bottle valve and electrically connected with the controller, and the controller monitors the temperature of the position of the bottle valve in real time.
Preferably, the cylinder valve is provided with an exhaust passage directly communicating with the atmosphere, and the exhaust passage is provided with a high-temperature protection valve, so that when the temperature is too high, the high-temperature protection valve provided in the exhaust passage is automatically opened, and the exhaust passage directly exhausts the atmosphere.
Preferably, the high-pressure safe exhaust hydrogen system further comprises a hydrogenation pipeline, one end of the hydrogenation pipeline is communicated with the hydrogen supply pipeline between the filter and the cylinder valve, the other end of the hydrogenation pipeline is connected with the hydrogenation port, the hydrogenation pipeline is further sequentially provided with a second one-way valve and a pressure gauge for hydrogenation of the gas cylinder, and when the high-pressure safe exhaust hydrogen system is hydrogenated, the gas circuit sequentially passes through the hydrogenation port, the second one-way valve, the pressure gauge, the cylinder valve and the gas cylinder.
Preferably, the pressure gauge is a mechanical pressure gauge, and can monitor the pressure of high-pressure gas of the high-pressure safety exhaust hydrogen system under the condition of not electrifying.
Preferably, the hydrogen system for high-pressure safe exhaust further comprises a hydrogen concentration sensor, and the hydrogen concentration sensor is connected with the controller and used for monitoring the hydrogen concentration of the ambient air and rapidly reacting according to the corresponding concentration.
As described above, the high-pressure safely exhausted hydrogen system of the present invention has the following advantageous effects: when the high-pressure safe exhaust hydrogen system is used for supplying hydrogen to the galvanic pile, the hydrogen supply gas path sequentially comprises a gas cylinder, a cylinder valve, a filter, a pressure reducing valve and a first ball valve, and finally enters the galvanic pile; when the pipeline pressure of the high-pressure safety exhaust hydrogen system is too high and exhaust is needed, the exhaust gas path sequentially passes through the gas cylinder, the cylinder valve, the filter, the pressure reducing valve, the safety valve and the first one-way valve and finally enters the atmosphere, and the first one-way valve ensures that high-pressure gas can only be exhausted from the hydrogen system in one way and cannot impact the safety valve in the rear-end pipeline reversely, so that danger is caused; according to the high-pressure safe exhaust hydrogen system, through reasonable arrangement of all parts in the system, the number of equipment related to hydrogen pipelines is reduced, the risks of equipment failure and pipeline joint leakage are reduced, and meanwhile, the high-pressure exhaust is ensured to be smooth under dangerous conditions by utilizing the one-way valve arranged in the safe pipeline.
Drawings
Fig. 1 shows a schematic diagram of a high pressure safety vented hydrogen system of the present invention.
Description of the element reference numerals
1 gas cylinder
2 bottle valve
21 temperature sensor
22 third check valve
23 relief valve
24 fourth check valve
25 high-temperature protection valve
3 Filter
4 pressure reducing valve
5 first ball valve
6 electric pile
7 safety valve
8 first check valve
9 second ball valve
10 hydrogenation port
11 second check valve
12 pressure gauge
13 low pressure sensor
14 high pressure sensor
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1, the present invention provides a high-pressure safely exhausted hydrogen system, comprising:
the hydrogen supply device comprises a hydrogen supply pipeline, and a gas cylinder 1, a filter 3 and a galvanic pile 6 which are sequentially connected with the hydrogen supply pipeline, wherein a cylinder valve 2 is arranged at the outlet of the gas cylinder 1, and a pressure reducing valve 4 and a first ball valve 5 are sequentially arranged on the hydrogen supply pipeline between the filter 3 and the galvanic pile 6;
and one end of the safety pipeline is communicated with the hydrogen supply pipeline between the pressure reducing valve 4 and the first ball valve 5, the other end of the safety pipeline is communicated with the atmosphere, and a safety valve 7 and a first one-way valve 8 are sequentially arranged on the safety pipeline.
When the high-pressure safe exhaust hydrogen system is used for supplying hydrogen to the galvanic pile 6, the hydrogen supply gas path sequentially comprises a gas cylinder 1, a cylinder valve 2, a filter 3, a pressure reducing valve 4 and a first ball valve 5, and finally enters the galvanic pile 6; when the pressure of the pipeline of the high-pressure safety exhaust hydrogen system is too high and exhaust is needed, the exhaust gas path passes through the gas cylinder 1, the cylinder valve 2, the filter 3, the pressure reducing valve 4, the safety valve 7 and the first one-way valve 8 in sequence and finally enters the atmosphere, and the first one-way valve 8 ensures that high-pressure gas can only be exhausted from the hydrogen system in one way and cannot impact the safety valve 7 in the pipeline at the rear end reversely, so that danger is caused.
In this embodiment, as shown in fig. 1, the pressure reducing valve 4 is a mechanical pressure reducing valve, and when the maximum flow of the mechanical pressure reducing valve can meet the demand for rear-end gas consumption, the flow at the rear end of the mechanical pressure reducing valve can adjust the characteristic of change in real time along with the change of the gas consumption, and flow control parts such as a flow sensor and corresponding control circuits are omitted.
In this embodiment, as shown in fig. 1, the high-pressure safe hydrogen discharge system further includes a controller, and the pressure reducing valve 4 is electrically connected to the controller to realize normal hydrogen supply.
In this embodiment, as shown in fig. 1, a low pressure sensor 13 and a high pressure sensor 14 are further disposed on the hydrogen supply pipeline, the low pressure sensor 13 and the high pressure sensor 14 are electrically connected to the controller, and the controller monitors the gas path pressure of the high-pressure safety exhaust hydrogen system in real time.
In this embodiment, as shown in fig. 1, the high-pressure safe hydrogen discharge system further includes an evacuation pipeline, one end of the evacuation pipeline is communicated with the hydrogen supply pipeline between the pressure reducing valve 4 and the first ball valve 5, the other end of the evacuation pipeline is communicated with the atmosphere, a second ball valve 9 is disposed on the evacuation pipeline, hydrogen in the pipeline is manually discharged into the atmosphere through the evacuation pipeline, wherein the gas path sequentially passes through the gas cylinder 1, the cylinder valve 2, the filter 3, the pressure reducing valve 4 and the second ball valve 9, and is finally discharged into the atmosphere.
In this embodiment, as shown in fig. 1, a temperature sensor 21 is disposed on the cylinder valve 2, and the temperature sensor 21 is electrically connected to the controller, so as to monitor the temperature of the position of the cylinder valve 2 in real time through the controller.
In this embodiment, as shown in fig. 1, the high-pressure safe exhaust hydrogen system further includes a hydrogenation pipeline, one end of the hydrogenation pipeline is connected to the hydrogen supply pipeline between the filter 3 and the cylinder valve 2, the other end of the hydrogenation pipeline is connected to the hydrogenation port 10, the hydrogenation pipeline further sequentially includes a second check valve 11 and a pressure gauge 12 for hydrogenation of the gas cylinder 1, and when the high-pressure safe exhaust hydrogen system is hydrogenated, the gas circuit sequentially passes through the hydrogenation port 10, the second check valve 11, the pressure gauge 12, the cylinder valve 2 and the gas cylinder 1.
Further, in the present embodiment, as shown in fig. 1, the cylinder valve 2 is provided with an exhaust passage directly communicating with the atmosphere, a hydrogen supply passage for supplying hydrogen to the stack 6, and an intake passage for charging the gas cylinder 1; when the temperature is too high, the high-temperature protection valve 25 arranged on the exhaust passage is automatically opened, the exhaust passage directly exhausts air to the atmosphere, the air supply passage is communicated with the exhaust passage, and the valve can be manually opened to exhaust air to the atmosphere through the air supply passage and the exhaust passage; still further, in this embodiment, as shown in fig. 1, a third check valve 22 and an overflow valve 23 are further sequentially disposed on the hydrogen supply pipeline, when the pressure of the cylinder valve 2 is too high, the overflow valve 23 can play a role of gas buffering, and as another embodiment, the same effect can also be achieved by externally connecting the overflow valve 23 in the pipeline; further, in the present embodiment, as shown in fig. 1, hydrogen gas enters the gas cylinder 1 through the intake passage, and a fourth check valve 24 is further provided on the intake passage.
In the present embodiment, as shown in fig. 1, the pressure gauge 12 is a mechanical pressure gauge, and can monitor the pressure of the high-pressure gas in the high-pressure safety exhaust hydrogen system without supplying power.
In this embodiment, the hydrogen system for high-pressure safe exhaust further comprises a hydrogen concentration sensor, and the hydrogen concentration sensor is connected with the controller for monitoring the hydrogen concentration of the ambient air and rapidly reacting according to the corresponding concentration.
In conclusion, the hydrogen system for high-pressure safe exhaust has the advantages that the reasonable arrangement of all parts in the system simplifies the number of equipment related to hydrogen pipelines, reduces the risks of equipment failure and pipeline joint leakage, and simultaneously ensures smooth high-pressure exhaust under dangerous conditions by utilizing the one-way valve arranged in the safe pipeline. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A high pressure, safe vented hydrogen system, comprising:
the hydrogen supply device comprises a hydrogen supply pipeline, and a gas cylinder (1), a filter (3) and a galvanic pile (6) which are sequentially connected with each other and arranged on the hydrogen supply pipeline, wherein a cylinder valve (2) is arranged at the outlet of the gas cylinder (1), and a pressure reducing valve (4) and a first ball valve (5) are sequentially arranged on the hydrogen supply pipeline between the filter (3) and the galvanic pile (6);
and one end of the safety pipeline is communicated with the hydrogen supply pipeline between the pressure reducing valve (4) and the first ball valve (5), the other end of the safety pipeline is communicated with the atmosphere, and a safety valve (7) and a first one-way valve (8) are sequentially arranged on the safety pipeline.
2. The high-pressure safely vented hydrogen system of claim 1, wherein: the pressure reducing valve (4) adopts a mechanical pressure reducing valve.
3. The high-pressure safely vented hydrogen system of claim 1, wherein: the high-pressure safe exhaust hydrogen system further comprises a controller, and the pressure reducing valve (4) is electrically connected with the controller.
4. The high-pressure safely vented hydrogen system of claim 3, wherein: still be provided with low pressure sensor (13) and high pressure sensor (14) on the hydrogen supply pipeline, low pressure sensor (13) and high pressure sensor (14) and controller electrical connection.
5. The high-pressure safely vented hydrogen system of claim 1, wherein: the high-pressure safe exhaust hydrogen system further comprises an evacuation pipeline, one end of the evacuation pipeline is communicated with a hydrogen supply pipeline between the pressure reducing valve (4) and the first ball valve (5), the other end of the evacuation pipeline is communicated with the atmosphere, and a second ball valve (9) is arranged on the evacuation pipeline.
6. The high-pressure safely vented hydrogen system of claim 3, wherein: the cylinder valve (2) is provided with a temperature sensor (21), and the temperature sensor (21) is electrically connected with the controller.
7. The high-pressure safely vented hydrogen system of claim 1, wherein: the cylinder valve (2) is provided with an exhaust passage which is directly communicated with the atmosphere, and the exhaust passage is provided with a high-temperature protection valve (25).
8. The high-pressure safely vented hydrogen system of claim 1, wherein: the high-pressure safe exhaust hydrogen system further comprises a hydrogenation pipeline, one end of the hydrogenation pipeline is communicated with a hydrogen supply pipeline between the filter (3) and the cylinder valve (2), the other end of the hydrogenation pipeline is connected with a hydrogenation port (10), and the hydrogenation pipeline is further sequentially provided with a second one-way valve (11) and a pressure gauge (12).
9. The high-pressure safety-exhausted hydrogen system according to claim 8, characterized in that: the pressure gauge (12) is a mechanical pressure gauge.
10. The high-pressure safety-exhausted hydrogen system according to claim 3, characterized in that: the high-pressure safe exhaust hydrogen system further comprises a hydrogen concentration sensor, and the hydrogen concentration sensor is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123193763.7U CN216928644U (en) | 2021-12-17 | 2021-12-17 | High pressure safety vented hydrogen system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123193763.7U CN216928644U (en) | 2021-12-17 | 2021-12-17 | High pressure safety vented hydrogen system |
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| Publication Number | Publication Date |
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| CN216928644U true CN216928644U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123193763.7U Active CN216928644U (en) | 2021-12-17 | 2021-12-17 | High pressure safety vented hydrogen system |
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| CN (1) | CN216928644U (en) |
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2021
- 2021-12-17 CN CN202123193763.7U patent/CN216928644U/en active Active
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