CN115275266A - Fixed knot constructs, on-vehicle hydrogen system and commercial car - Google Patents
Fixed knot constructs, on-vehicle hydrogen system and commercial car Download PDFInfo
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- CN115275266A CN115275266A CN202210814506.0A CN202210814506A CN115275266A CN 115275266 A CN115275266 A CN 115275266A CN 202210814506 A CN202210814506 A CN 202210814506A CN 115275266 A CN115275266 A CN 115275266A
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- hydrogen
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- hydrogen storage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0444—Concentration; Density
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04664—Failure or abnormal function
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
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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
Abstract
The invention discloses a fixed structure, a vehicle-mounted hydrogen system and a commercial vehicle, which are used for reducing the safety risk of a hydrogen storage system, wherein the fixed structure is provided with a hydrogen storage chamber and a valve chamber, and the hydrogen storage chamber is used for placing a hydrogen storage piece; the valve chamber is used for placing a valve component. The fixing structure provided by the invention has the advantages that the valve component with higher leakage risk is arranged in the valve cavity above the fixing structure, the diffusion range of the leaked hydrogen is reduced, the hydrogen leakage detection sensitivity is improved, and the safety of the gas used for commercial vehicles is improved as much as possible.
Description
Technical Field
The invention belongs to the technical field of vehicle-mounted hydrogen systems of commercial vehicles, and particularly relates to a fixed structure, a vehicle-mounted hydrogen system and a commercial vehicle.
Background
Commercial vehicles are vehicles for transporting people and goods, including both passenger cars and trucks. The on-vehicle hydrogen system of freight train generally adopts vertical on-vehicle hydrogen system, and more uses the cuboid frame, and the gas cylinder level is arranged, and the pipeline dispersion is arranged in the system frame of gas cylinder valve one side, when putting with correct mounting means, sees from gas cylinder valve direction, and system's overall height is greater than total width.
The vehicle-mounted hydrogen system of the current commercial vehicle has potential safety hazards.
Disclosure of Invention
In order to solve the technical problems, the invention provides a fixing structure, a vehicle-mounted hydrogen system and a commercial vehicle, wherein a valve component with higher leakage risk is arranged in a valve cavity above the fixing structure, hydrogen can be concentrated in the valve cavity when leaking, the diffusion range is reduced, the hydrogen leakage detection sensitivity is improved, and the safety of gas used for the commercial vehicle is improved as much as possible.
The technical scheme of the invention is as follows:
in one aspect, the present invention provides a fixing structure for fixing a hydrogen storage supplying mechanism having a hydrogen storage member and a valve assembly which are communicated with each other, the fixing structure being provided with:
the hydrogen storage chamber is used for placing the hydrogen storage piece;
a valve chamber for housing the valve assembly.
In some embodiments, the valve chamber has a cross-sectional area perpendicular to the height direction that decreases in a direction from the hydrogen storage member to the valve assembly.
In some embodiments, the top of the valve chamber has a tip for placement of a concentration sensor.
In some embodiments, one of the cavity walls of the valve cavity is disposed obliquely with respect to the height direction, the fixing structure is provided with a plurality of ventilation openings communicated with the valve cavity, and at least one of the ventilation openings is disposed on the obliquely disposed cavity wall.
In some embodiments, the fixed structure comprises a housing and an internal partition, the internal cavity of the housing being separated into the valve chamber and the hydrogen storage chamber by the internal partition.
In some embodiments, the inner partition is obliquely disposed.
In a second aspect, the present invention provides a vehicle-mounted hydrogen system for a commercial vehicle, the vehicle-mounted hydrogen system comprising:
the aforementioned fixed structure;
the hydrogen storage and supply mechanism comprises a hydrogen storage piece and a valve component which are communicated, and the hydrogen storage piece and the valve component are respectively arranged in the hydrogen storage chamber of the fixed structure and the valve chamber.
In some embodiments, the on-board hydrogen system further comprises a concentration sensor disposed at a highest point of the valve chamber.
In a third aspect, the present invention further provides a commercial vehicle, including:
a vehicle body;
the vehicle-mounted hydrogen system is connected to the vehicle body, and the valve assembly of the vehicle-mounted hydrogen system is arranged above the hydrogen storage piece.
In some embodiments, the vehicle body comprises:
a cab, a top of the valve chamber of the fixed structure being higher than the cab.
The beneficial effects of the invention at least comprise:
the fixing structure provided by the invention is provided with a hydrogen storage chamber and a valve chamber, wherein the hydrogen storage chamber is used for placing a hydrogen storage piece; the valve chamber is used for placing the valve component. The valve components comprise valves such as a pressure reducing valve, an unloading valve and the like and pipelines communicated with the valves, the joints of the valves and the pipelines belong to high leakage risk positions, the high leakage risk valve components are collectively arranged in a valve chamber and are separated from the hydrogen storage piece and the cylinder valve, once the valve components leak, hydrogen is collectively arranged in the valve chamber, when the valve components are installed, the valve chamber is arranged above the hydrogen storage chamber, the leaked hydrogen floats upwards due to the characteristic of low density, and the probability of the hydrogen diffusing towards the hydrogen storage chamber is lower, so that the diffusion range of the leaked hydrogen can be reduced, and the space range of the hydrogen possibly accumulating is reduced; when the hydrogen leakage is not serious, because the volume of the vehicle-mounted chamber in the prior art is very large, the concentration distribution of a small amount of leaked hydrogen in the large-volume vehicle-mounted chamber is uneven, the average concentration is very low, the concentration sensor is difficult to detect or even can not detect the hydrogen leakage, but the flammable and explosive risks still exist; the volume of the valve cavity in the application is far smaller than that of the vehicle-mounted cavity in the prior art, so that a small amount of leaked hydrogen is concentrated in a small valve cavity range, the average concentration of the leaked hydrogen in the valve cavity is higher than that in the prior art, the concentration sensor can detect that the hydrogen is leaked in the valve cavity in a short time, the sensitivity of hydrogen leakage detection is improved, and an operator can quickly react to process the hydrogen; when the hydrogen leakage is serious, the valve chamber can also gather the leaked hydrogen, the hydrogen leakage at the position can be monitored in a short time, and the operator can quickly react to process the hydrogen leakage; the fixed knot that this application embodiment provided constructs will reveal the higher valve member of risk and locate the valve cavity of top in, can concentrate on the valve cavity when hydrogen is revealed, reduces the diffusion range after hydrogen reveals to promote hydrogen leakage detection sensitivity, improve the security of commercial car gas as far as possible.
Drawings
Fig. 1 shows a schematic structural view of a fixing structure according to a first embodiment.
Fig. 2 shows a schematic mechanism diagram of the on-vehicle hydrogen system of the second embodiment.
Fig. 3 shows a side view of fig. 2.
Fig. 4 shows a schematic structural view of a commercial vehicle according to a third embodiment.
Description of reference numerals:
10-commercial vehicle;
100-vehicle body, 110-cab;
200-vehicle-mounted hydrogen system, 210-fixed structure, 211-hydrogen storage chamber, 212-valve chamber, 213-ventilation opening, 214-shell, 215-inner partition, 216-access door, 217-hinge, 218-locking mechanism, 220-hydrogen supply storage mechanism, 221-hydrogen storage piece and 222-valve component.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.
The vehicle-mounted hydrogen system of the commercial vehicle is characterized in that a hydrogen cylinder, a valve assembly and a pipeline are arranged in a frame, the frame is externally coated with a skin to form a vehicle-mounted cavity, a vent is arranged on the skin and used for hydrogen diffusion which is possibly leaked, the hydrogen pipeline is large in internal pressure, dispersed and more in joints of the valve assembly, so that the possibility of hydrogen leakage is high, the space of the vehicle-mounted cavity is relatively closed and the volume of the vehicle-mounted cavity is large, hydrogen is gathered in the vehicle-mounted cavity, but is relatively dispersed, difficult to detect by a sensor in time and even undetected, and the vehicle-mounted hydrogen system has flammable and explosive risks and is large in potential safety hazard.
In order to reduce the risk that the hydrogen of commercial vehicle hydrogen storage system leaks back inflammable and explosive, this application provides a fixed knot structure, on-vehicle hydrogen system and commercial vehicle.
Example one
The embodiment of the application provides a fixed knot constructs, this fixed knot constructs and is used for the fixed confession hydrogen storage mechanism that has hydrogen storage member and valve member that is linked together, the valve member of the risk of highly revealing is located in the valve cavity of top, the higher gas storage member of security and the cylinder valve are located in the hydrogen storage cavity of below, hydrogen density is less, in case take place hydrogen and reveal, hydrogen upwards floats, can concentrate the hydrogen of revealing in the valve cavity of top, make hydrogen can not diffuse to the hydrogen storage cavity, the diffusion range of hazardous gas has been reduced, and promote hydrogen and leak the detection sensitivity, the security performance of vehicle has been improved.
Referring to fig. 1 to 3, a fixing structure 210 provided in the embodiment of the present disclosure is provided with a hydrogen storage chamber 211, a valve chamber 212, and a vent 213, wherein the hydrogen storage chamber 211 is used for placing a hydrogen storage member 221; the valve chamber 212 is used to house a valve assembly 222. The valve components 222 comprise valves such as a pressure reducing valve, an unloading valve, a manual emptying valve and the like and pipelines communicated with the valves, the joints of the valves and the pipelines belong to high leakage risk positions, the high leakage risk valve components 222 are collectively arranged in the valve chamber 212 and are separated from the hydrogen storage part 221 and the cylinder valve, once leakage occurs, hydrogen is collectively arranged in the valve chamber 212, when the hydrogen storage chamber is installed, the valve chamber 212 is arranged above the hydrogen storage chamber 211, leaked hydrogen floats upwards due to the characteristic of low density, and the possibility that the hydrogen diffuses towards the hydrogen storage chamber 211 below is low, so that the diffusion range of the leaked hydrogen can be reduced, and the space range in which the hydrogen can be gathered is reduced; when hydrogen leakage is not serious, the volume of a vehicle-mounted chamber in the prior art is very large, the concentration distribution of a small amount of leaked hydrogen in the large-volume vehicle-mounted chamber is not uniform, the average concentration is very low, a concentration sensor cannot detect the hydrogen leakage, but the risk of flammability and explosiveness still exists; the volume of the valve cavity 212 in the application is far smaller than that of a vehicle-mounted cavity in the prior art, so that a small amount of leaked hydrogen is concentrated in the range of the very small valve cavity 212, the average concentration of the leaked hydrogen in the valve cavity 212 is higher than that in the prior art, the concentration sensor can detect that the hydrogen leaks in the valve cavity 212 within a very short time of leakage, the sensitivity of hydrogen leakage detection is improved, and an operator can quickly react to process the hydrogen leakage; when the hydrogen leakage is serious, the valve chamber 212 can also gather the leaked hydrogen, the hydrogen leakage at the position can be monitored in a short time, and the operator can quickly react to process the hydrogen leakage; the fixed knot that the embodiment of this application provided constructs 210 will reveal the higher valve member 222 of risk and locate the valve chamber 212 of top in, can concentrate on valve chamber 212 when hydrogen is revealed, reduces the diffusion range after hydrogen reveals to promote hydrogen leakage detection sensitivity, improve the security of commercial car gas as far as possible.
In addition, the relative position between the valve chamber 212 and the hydrogen storage chamber 211 may be that the valve chamber 212 is above, the hydrogen storage chamber 211 is below, or the valve chamber 212 and the hydrogen storage chamber 211 are at the same height, although in other embodiments, the valve chamber 212 may be below, and the hydrogen storage chamber 211 is above; preferably, the valve chamber 212 is above and the hydrogen storage chamber 211 is below. The valve chamber 212 may also house a filter, the interface of which may also leak hydrogen.
In some embodiments, the cross-sectional area of the valve chamber 212 perpendicular to the height direction decreases in the direction from the hydrogen storage member 221 to the valve assembly 222, that is, the space of the valve chamber 212 gradually decreases from the hydrogen storage member 221 to the valve assembly 222, so that once hydrogen leakage occurs, the leaked hydrogen is favorably floated up and accumulated at the top of the smaller space of the valve chamber 212, thereby reducing the diffusion range of the leaked hydrogen.
Specifically, in some embodiments, the top of the valve chamber 212 has a tip for placing a concentration sensor, when hydrogen leakage occurs in the valve assembly 222, the leaked hydrogen floats upwards due to low density and is concentrated on the top of the valve chamber 212 with a small space, so that the tip of the valve chamber 212 is the position with the highest hydrogen concentration, and the concentration sensor is placed at the position with the highest hydrogen concentration, so that the concentration sensor can sensitively detect that hydrogen is accumulated in the valve chamber 212, and can be used for performing targeted maintenance on the valve assembly 222 in the valve chamber 212 to solve the hydrogen leakage problem. The top of the valve chamber 212 may be an arch, the top of the arch forms a tip, the top wall of the valve chamber 212 may be disposed obliquely, the highest position of the top wall forms a tip, and the shape of the valve chamber 212 is not particularly limited.
Preferably, in some embodiments, one of the cavity walls of the valve cavity 212 is disposed obliquely with respect to the height direction, the fixing structure 210 is provided with a plurality of ventilation openings 213 communicating with the valve cavity 212, at least one ventilation opening 213 is disposed on the obliquely disposed cavity wall, when the fixing structure is installed, the highest point of the obliquely disposed cavity wall is close to the tail of the vehicle, and the lowest point of the obliquely disposed cavity wall is close to the head of the vehicle, during the driving of the vehicle, relative displacement is generated between the vehicle and the surrounding air, and the surrounding air enters from the ventilation opening 213 of the obliquely disposed cavity wall and is exhausted from the other ventilation openings 213, so that the diffusion of the gas in the valve cavity 212 is accelerated, and once leakage occurs, the dilution of hydrogen can be rapidly realized; in addition, the inclined cavity wall forms a streamline design, so that wind resistance in the running process of the vehicle can be reduced.
In some embodiments, the stationary structure 210 includes a housing 214 and an internal partition 215, the interior of the housing 214 being separated into a valve chamber 212 and a hydrogen storage chamber 211 by the internal partition 215. The hydrogen storage chamber 211 and the valve chamber 212 are separated by the inner partition plate 215, so that the exchange between the gas in the valve chamber 212 and the gas in the hydrogen storage chamber 211 is avoided, the diffusion range of the leaked hydrogen is limited, and the safety performance of the vehicle is improved. The inner partition 215 may be made of a metal plate, and may be made of a thin iron sheet. Specifically, the inner partition 215 is disposed obliquely, and a sensor for detecting the hydrogen concentration in the hydrogen storage chamber 211 may be disposed at a portion of the inner partition 215 having a higher height.
In some embodiments, the fixing structure 210 is further provided with two openable and closable access doors 216, and the two access doors 216 are respectively used for opening or closing the valve chamber 212 and the hydrogen storage chamber 211 so as to maintain the valve assembly 222 of the valve chamber 212 and the hydrogen storage piece 221 and the cylinder valve of the hydrogen storage chamber 211. The access door 216 may be hinged to the housing 214, and in particular, the access door 216 may be connected to the housing 214 by hinges 217. The shell 214 and/or the access door 216 are/is provided with a locking mechanism 218, so that the access door 216 is prevented from being opened and closed during the running process of the vehicle, and safety problems such as collision and the like are avoided. The locking mechanism 218 may be implemented by a structure of a positioning pin and a positioning hole, for example, a positioning hole is provided on the housing 214, a positioning pin is provided on the access door 216, and the positioning pin and the positioning hole are provided in a matching manner; or a positioning pin is arranged on the shell 214, a positioning hole is arranged on the access door 216, and the positioning pin is matched with the positioning hole. The above is merely an example of the locking mechanism 218, and the locking mechanism 218 may refer to other disclosures in the prior art, which are not limited herein.
In addition, the hydrogen storage chamber 211 may be communicated with a plurality of vents 213, so that the gas circulation inside and outside the hydrogen storage chamber 211 is increased by using the air flow during the vehicle running, and the safety risk caused by the accumulation of hydrogen in the hydrogen storage chamber 211 after the hydrogen is leaked is avoided. The valve chamber 212 of the fixing structure 210 may have a triangular prism shape, the hydrogen storage chamber 211 has a rectangular parallelepiped shape, and two edges of the valve chamber 212 are respectively connected to two parallel edges of the rectangular parallelepiped top surface of the hydrogen storage chamber 211. The hydrogen storage part 221 can also be provided with a hydrogenation port, after the hydrogen stored in the hydrogen storage part 221 is used up, the hydrogen storage part 221 can be hydrogenated through the hydrogenation port, and the reinforcing port is also arranged in the hydrogen storage chamber 211.
Taking the valve chamber 212 as an example above and the hydrogen storage chamber 211 as an example below, in use of the fixing structure 210 provided in the embodiment of the present application, the valve assembly 222 with high risk of leakage is disposed in the valve chamber 212 above, and the gas storage element and the cylinder valve with high safety are disposed in the hydrogen storage chamber 211 below, so that the density of hydrogen is low, once hydrogen leakage occurs, hydrogen floats upwards, and leaked hydrogen can be concentrated in the valve chamber 212 above, so that hydrogen cannot diffuse into the hydrogen storage chamber 211, the diffusion range of hazardous gases is reduced, and the safety performance of a vehicle is improved; the hydrogen floats to the tip of the valve chamber 212 due to the small concentration, so that the hydrogen concentration at the tip is the highest, the concentration sensor at the tip can quickly detect the hydrogen aggregation, the sensitivity is high, and a reference basis is provided for maintaining the position.
Example two
Based on the same inventive concept as the first embodiment, the embodiment of the application provides a vehicle-mounted hydrogen system 200, which is used for a commercial vehicle, the vehicle-mounted hydrogen system 200 can detect that hydrogen leakage generates aggregation, and can also aggregate the leaked hydrogen in a smaller range, so that the investigation range of the hydrogen leakage is reduced, and problems can be found and repaired more quickly.
Referring to fig. 2 to 3, an in-vehicle hydrogen system 200 according to an embodiment of the present application includes a fixing structure 210 and a hydrogen storage mechanism 220 according to the first embodiment, the hydrogen storage mechanism 220 includes a hydrogen storage element 221 and a valve assembly 222, which are communicated with each other, and the hydrogen storage element 221 and the valve assembly 222 are respectively disposed in a hydrogen storage chamber 211 and a valve chamber 212 of the fixing structure 210. The hydrogen storage member 221 may be a common hydrogen cylinder or gas cylinder; the valve assembly 222 includes, but is not limited to, a pressure reducing valve, an unloading valve, an emptying valve, and a pipeline connected to the pressure reducing valve, the pressure reducing valve and the emptying valve, and the valve assembly 222 is disposed in the upper valve chamber 212, which saves most of the length of the unloading port emptying pipeline and the unloading valve emptying pipeline of the pressure reducing valve, compared with the conventional solution of the vehicle-mounted hydrogen system 200; meanwhile, when the exhaust operation is carried out, an additional emptying pipe tool does not need to be prepared, the height of the emptying valve is high and is difficult to reach, and the safety risk caused by misoperation of non-professional personnel can be avoided.
In some embodiments, the on-board hydrogen system 200 further includes a concentration sensor disposed at the highest point of the valve chamber 212, when the concentration sensor detects that the concentration is too high, it indicates that hydrogen accumulation has occurred, and the location where hydrogen leakage occurs can be determined as the valve assembly 222 in the valve chamber 212. The concentration sensor is arranged at the highest point of the valve chamber 212, and leaked hydrogen can float to the topmost part due to the characteristic of low density, so that the concentration sensor is more sensitive to detect hydrogen leakage and accumulation; in addition, the vehicle-mounted hydrogen system 200 further includes a concentration sensor disposed in the hydrogen storage chamber 211, and when hydrogen leakage occurs in the hydrogen storage unit 221, a change in hydrogen concentration in the hydrogen storage chamber 211 can be detected. The concentration sensor of the valve chamber 212 and the concentration sensor of the hydrogen storage chamber 211 are electrically connected with the controller, and when hydrogen leakage occurs, the hydrogen leakage investigation range can be reduced by judging the number of the concentration sensor, so that problems can be found and maintained more quickly.
In some embodiments, the hydrogen storage members 221 are provided in plurality, the valve assembly 222 is respectively communicated with the hydrogen storage members 221 through a manifold, the gas port of each hydrogen storage member 221 is provided with a cylinder valve, the manifold is communicated with each cylinder valve, the valve chamber 212 is arranged above, and the hydrogen storage chamber 211 is arranged below, so that the length of the manifold is not increased, and the length of the emptying pipeline is also reduced; the hydrogen storage members 221 may be arranged in a matrix, and the arrangement direction of the header pipes may be from the leftmost hydrogen storage member 221 of the bottommost layer to the middle hydrogen storage member 221 of the bottommost layer, the rightmost hydrogen storage member 221 of the middle layer, the leftmost hydrogen storage member 221 of the middle layer, and so on, to form a zigzag winding pipe.
The vehicle-mounted hydrogen system 200 provided by the embodiment of the application is used for commercial vehicles, the vehicle-mounted hydrogen system 200 can detect that hydrogen leakage generates aggregation, can aggregate the leaked hydrogen in a smaller range, reduces the investigation range of hydrogen leakage, improves the sensitivity of hydrogen leakage detection, and is convenient for finding problems and overhauling quickly; meanwhile, the length of the emptying pipeline is shortened, and the cost is saved.
EXAMPLE III
Based on the same inventive concept as the embodiment, the embodiment of the application provides a commercial vehicle, the commercial vehicle is provided with a vehicle-mounted hydrogen system 200 matched with the commercial vehicle, the height of a valve assembly 222 of the vehicle-mounted hydrogen system 200 with high leakage risk is higher than that of a cab, the diffusion of hydrogen which may leak is accelerated by means of convection generated in a vehicle form, and the safety performance is high.
Referring to fig. 4, a commercial vehicle 10 according to an embodiment of the present disclosure includes a vehicle body 100 and a vehicle-mounted hydrogen system 200 according to a second embodiment, wherein the vehicle-mounted hydrogen system 200 is connected to the vehicle body 100, and a valve assembly 222 of the vehicle-mounted hydrogen system 200 is disposed above a hydrogen storage member 221.
In some embodiments, the vehicle body 100 includes the cab 110, and the valve chamber 212 of the fixing structure 210 is higher than the cab 110, and may enter the valve chamber 212 by convection generated by vehicle driving, so that hydrogen may be rapidly diffused when hydrogen leakage occurs. In addition, the top of the valve chamber 212 is arranged obliquely and faces the vehicle head, so that the wind resistance generated in the running process of the vehicle is favorably reduced.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A fixing structure for fixing a hydrogen storage supplying mechanism having a hydrogen storage member and a valve assembly which are communicated with each other, said fixing structure being provided with:
the hydrogen storage chamber is used for placing the hydrogen storage piece;
a valve chamber for housing the valve assembly.
2. The fixation structure of claim 1, wherein a cross-sectional area of the valve chamber perpendicular to a height direction decreases in a direction from the hydrogen storage member to the valve assembly.
3. A fixation structure as claimed in claim 2, characterized in that the top of the valve chamber has a tip for placing a concentration sensor.
4. The fixture according to claim 3, wherein one of the walls of the valve chamber is disposed obliquely with respect to the height direction, the fixture is provided with a plurality of ventilation openings communicating with the valve chamber, and at least one of the ventilation openings is disposed on the obliquely disposed wall.
5. A fixation structure as claimed in any one of claims 1 to 4, wherein the fixation structure comprises a housing and an internal partition, the internal cavity of the housing being separated into the valve chamber and the hydrogen storage chamber by the internal partition.
6. The fixing structure according to claim 5, wherein the inner partition is disposed obliquely.
7. An on-board hydrogen system for a commercial vehicle, comprising:
the fixation structure of any one of claims 1-6;
the hydrogen supply mechanism comprises a hydrogen storage piece and a valve component which are communicated with each other, and the hydrogen storage piece and the valve component are respectively arranged in the hydrogen storage chamber of the fixed structure and the valve chamber.
8. The vehicle hydrogen system of claim 7 further comprising a concentration sensor located at the highest point of the valve chamber.
9. A commercial vehicle, comprising:
a vehicle body;
the vehicular hydrogen system of any of claims 7-8, attached to the vehicle body, a valve assembly of the vehicular hydrogen system being disposed above the hydrogen storage member.
10. The commercial vehicle of claim 9, wherein the vehicle body comprises:
a cab, a top of the valve chamber of the fixed structure being higher than the cab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814506.0A CN115275266A (en) | 2022-07-11 | 2022-07-11 | Fixed knot constructs, on-vehicle hydrogen system and commercial car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814506.0A CN115275266A (en) | 2022-07-11 | 2022-07-11 | Fixed knot constructs, on-vehicle hydrogen system and commercial car |
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| CN115275266A true CN115275266A (en) | 2022-11-01 |
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| CN202210814506.0A Pending CN115275266A (en) | 2022-07-11 | 2022-07-11 | Fixed knot constructs, on-vehicle hydrogen system and commercial car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658719A (en) * | 2023-04-17 | 2023-08-29 | 东风汽车集团股份有限公司 | Connector, medium storage system and vehicle |
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2022
- 2022-07-11 CN CN202210814506.0A patent/CN115275266A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658719A (en) * | 2023-04-17 | 2023-08-29 | 东风汽车集团股份有限公司 | Connector, medium storage system and vehicle |
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