CN109489919A - Hydrogen Fuel-cell Vehicles hydrogen pipeline is vented leakage detection apparatus and its exhaust leak hunting method - Google Patents
Hydrogen Fuel-cell Vehicles hydrogen pipeline is vented leakage detection apparatus and its exhaust leak hunting method Download PDFInfo
- Publication number
- CN109489919A CN109489919A CN201811634118.4A CN201811634118A CN109489919A CN 109489919 A CN109489919 A CN 109489919A CN 201811634118 A CN201811634118 A CN 201811634118A CN 109489919 A CN109489919 A CN 109489919A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- pipeline
- exhaust
- solenoid valve
- hydrogen fuel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 192
- 239000001257 hydrogen Substances 0.000 title claims abstract description 192
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 192
- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 10
- 239000000446 fuel Substances 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 48
- 229910052757 nitrogen Inorganic materials 0.000 claims description 24
- 239000000945 filler Substances 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 3
- 238000003786 synthesis reaction Methods 0.000 claims 3
- 230000009514 concussion Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 239000011800 void material Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/30—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds using progressive displacement of one fluid by another
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a kind of Hydrogen Fuel-cell Vehicles hydrogen pipelines to be vented leakage detection apparatus, Hydrogen Fuel-cell Vehicles include hydrogen system assembly, hydrogen fuel cell, hydrogen system assembly, hydrogen fuel cell pass through connection by metal hose, three-way connection is set on metal hose, two straightthrough ports of three-way connection are separately connected hydrogen system assembly and hydrogen fuel cell, and the third connectivity mouth of three-way connection connects exhaust pipe；Exhaust solenoid valve is set on exhaust pipe.By adopting the above technical scheme, the void gas in pipeline is discharged using pipeline inside and outside differential pressure, not only saved cost but also is convenient for operating；It is easier to arrange using corrugated flexible metal tube, will not cause to wear because of interference；Three-way connection and electromagnetic valve device allow not to be operated the interface connected in the exhaust leak detection course of work, and avoiding frequently dismounting leads to damage of components；After the completion of work is hunted leak in exhaust, without electric solenoid valve in non-artificial intervention, state is not changed vulnerable to the interference of the factors such as mechanical concussion.
Description
Technical field
The invention belongs to the technical fields of new-energy automobile dynamical system.More particularly it relates to a kind of hydrogen fuel
Battery car hydrogen pipeline is vented leakage detection apparatus.In addition, the invention further relates to the exhaust leak hunting methods of the device.
Background technique
Electric car is mainly using vehicle power supply as the automobile of power, since it does not generate exhaust pollution, almost to environment
It is " no pollution ", there is vast potential for future development.Simultaneously hydrogen again be and its danger gas.It mixes with air and easily burns,
Also accident is continuous for energy-storage battery, and circuit is complicated on vehicle, and firing accident is inevitable.Therefore, Hydrogen Fuel-cell Vehicles hydrogen system and hydrogen pipeline
Leakproofness must be guaranteed, while need to be mixed with other gases less as far as possible in hydrogen.
But in the prior art, for the inspection of zero connection sealing of hydrogen system, there are no being relatively applicable in and
Mature method；Equally, for gas useless or even harmful in hydrogen system, a good method is discharged it not yet.It is existing
There is the scheme of technology to carry out complicated dismounting, seriously affects efficiency, and effect is ideal not to the utmost.
Summary of the invention
The present invention provides a kind of Hydrogen Fuel-cell Vehicles hydrogen pipeline exhaust leakage detection apparatus, and the purpose is to will be mixed into having in system
Evil gas discharge, checks the connection sealing of system.
To achieve the goals above, the technical scheme adopted by the invention is as follows:
Hydrogen Fuel-cell Vehicles hydrogen pipeline of the invention is vented leakage detection apparatus, and the Hydrogen Fuel-cell Vehicles include that hydrogen system is total
At, hydrogen fuel cell, the hydrogen system assembly, hydrogen fuel cell pass through connection by metal hose；On the metal hose
Three-way connection is set, and two straightthrough ports of the three-way connection are separately connected hydrogen system assembly and hydrogen fuel cell, described
The third connectivity mouth of three-way connection connects exhaust pipe；Exhaust solenoid valve is set on the exhaust pipe.
Hydrogen cylinder is arranged in the hydrogen system assembly, and filler is arranged in the hydrogen cylinder bottleneck.
In the hydrogen system assembly, from the hydrogen cylinder bottleneck to three-way connection, hydrogen system electromagnetism is set gradually
Valve, pressure reducing valve.
In the hydrogen system assembly, pressure gauge is set between the pressure reducing valve and three-way connection.
The metal hose is corrugated flexible metal tube.
The three-way connection is T font three-way connection.
The hydrogen fuel cell is proton exchange membrane hydrogen fuel cell.
In order to realize goal of the invention identical with above-mentioned technical proposal, the present invention also provides the Hydrogen Fuel-cell Vehicles
Hydrogen pipeline is vented the exhaust leak hunting method of leakage detection apparatus, and the course of work is as follows:
Step 1, air-discharging:
It is filled into hydrogen cylinder after nitrogen is pressurizeed by supercharging equipment, opens the hydrogen system electromagnetism in hydrogen system assembly
Valve, nitrogen is by entering metal hose after hydrogen system solenoid valve and pressure reducing valve, finally into hydrogen fuel cell；
Wait a few minutes, observe hydrogen system pressure tabular value tend towards stability after, at triple valve exhaust solenoid valve power
Make its opening, due to pipeline inside and outside differential pressure, nitrogen can carry air and quickly overflow in pipeline, to reach the mesh of discharge air
's；
The course of work number of repetition of this step is more, and air content is lower in hydrogen system, hydrogen pipeline；
Step 2, leak detection:
After the completion of air exhaust, continue the rated operating pressure that the nitrogen in hydrogen cylinder is pressurized to hydrogen cylinder, at this time three
The exhaust solenoid valve at logical place is closed, and hydrogen system solenoid valve is opened, and pressure reducing valve is opened；Observed pressure meter reading, after standing one hour
Observed pressure meter reading again indicates that hydrogen system, hydrogen pipeline leakproofness are good if reading is unchanged；It opens and is vented at three-way connection
Solenoid valve discharges the nitrogen in pipeline；
Step 3, denitrogen gas:
It is filled into hydrogen cylinder after hydrogen is pressurizeed by supercharging equipment, opens the hydrogen system electromagnetism in hydrogen system assembly
Valve, hydrogen is by entering metal hose after hydrogen system solenoid valve and pressure reducing valve, finally into hydrogen fuel cell；
After waiting a few minutes, observation hydrogen system pressure tabular value to tend towards stability, make to the exhaust solenoid valve power supply at triple valve
It is opened, and due to pipeline inside and outside differential pressure, nitrogen can carry air and quickly overflow in pipeline, to achieve the purpose that nitrogen is discharged；
The course of work number of repetition of this step is more, and nitrogen content is lower in hydrogen system, hydrogen pipeline.
The present invention by adopting the above technical scheme, using pipeline inside and outside differential pressure discharges the void gas in pipeline, both saves
It is convenient for operating again in cost-saving；Use corrugated flexible metal tube that pipeline can be made to be easier to arrange in narrow space, and will not
Because interference causes to wear；Three-way connection and electromagnetic valve device allow in the exhaust leak detection course of work not to having connected
Interface operated, avoid frequently dismount lead to damage of components；After the completion of work is hunted leak in exhaust, without electric solenoid valve non-
In the case of human intervention, state is not changed vulnerable to the interference of the factors such as mechanical concussion.
Detailed description of the invention
Label in content and figure shown in attached drawing is briefly described as follows:
Fig. 1 is the structural diagram of the present invention.
In the figure, it is marked as
1, hydrogen fuel cell, 2, metal hose, 3, three-way connection, 4, exhaust solenoid valve, 5, exhaust pipe, 6, pressure gauge, 7,
Pressure reducing valve, 8, hydrogen system solenoid valve, 9, filler, 10, hydrogen cylinder, 11, hydrogen system assembly,
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Illustrate, to help those skilled in the art to have more complete, accurate and deep reason to inventive concept of the invention, technical solution
Solution.
Structure of the invention as shown in Figure 1 is vented leakage detection apparatus, the hydrogen combustion for a kind of Hydrogen Fuel-cell Vehicles hydrogen pipeline
Material battery car includes hydrogen system assembly 11, hydrogen fuel cell 1, and the hydrogen system assembly 11, hydrogen fuel cell 1 are soft by metal
Pipe 2 connects.When having assembled a Hydrogen Fuel-cell Vehicles, need to vehicle hydrogen system and hydrogen pipeline are exhausted, leakproofness is tested
Card is to guarantee safety in utilization.
In order to overcome the drawbacks of the prior art, it realizes and the pernicious gas being mixed into system is discharged, check the connection of system
The goal of the invention of leakproofness, the technical scheme adopted by the invention is as follows:
As shown in Figure 1, Hydrogen Fuel-cell Vehicles hydrogen pipeline of the invention is vented leakage detection apparatus, on the metal hose 2
Three-way connection 3 is set, and two straightthrough ports of the three-way connection 3 are separately connected hydrogen system assembly 11 and hydrogen fuel cell 1, institute
The third connectivity mouth for the three-way connection 3 stated connects exhaust pipe 5；Exhaust solenoid valve 4 is set on the exhaust pipe 5.
Wherein, 11 gas outlet of hydrogen system assembly is connected by hydrogen supply hose and three-way connection 3,1 hydrogen of hydrogen fuel cell into
Port is connected by hydrogen supply hose and three-way connection 3, and exhaust solenoid valve 4 is mounted on the remaining interface of three-way connection 3.Exhaust electricity
4 other end of magnet valve runs in tracheae 5.
The connection of hydrogen system assembly gas outlet, two sections of hydrogen supply hoses, three-way connection, hydrogen fuel cell air inlet constitutes whole
A pipeline assembly to hydrogen fuel cell feed hydrogen.
Displacement work conveniently and efficiently can be exhausted to hydrogen system, hydrogen pipeline with above structure, check hydrogen system and
The connection sealing of hydrogen fuel cell.The three-way connection 3 and solenoid valve are the main component used when exhaust leak detection.
Hydrogen cylinder 10 is arranged in the hydrogen system assembly 11, and filler 9 is arranged in 10 bottleneck of hydrogen cylinder.
The hydrogen system assembly includes hydrogen cylinder, solenoid valve, pressure gauge, pressure reducing valve.Specifically:
In the hydrogen system assembly 11, from 10 bottleneck of hydrogen cylinder to three-way connection 3, hydrogen system is set gradually
Solenoid valve 8, pressure reducing valve 7.
In the hydrogen system assembly 11, pressure gauge 6 is set between the pressure reducing valve 7 and three-way connection 3.
The metal hose 2 is corrugated flexible metal tube.
The three-way connection 3 is T font three-way connection.
The hydrogen fuel cell 1 is proton exchange membrane hydrogen fuel cell.
The hydrogen fuel cell is proton exchange membrane hydrogen fuel cell.
The solenoid valve only individually connects electric work when in use.
In order to realize goal of the invention identical with above-mentioned technical proposal, the present invention also provides the Hydrogen Fuel-cell Vehicles
Hydrogen pipeline is vented the exhaust leak hunting method of leakage detection apparatus, and the course of work is as follows:
Step 1, air-discharging:
It is filled into hydrogen cylinder 10 after nitrogen is pressurizeed by supercharging equipment, opens the hydrogen system electromagnetism in hydrogen system assembly
Valve 8, nitrogen is by entering metal hose 2 after hydrogen system solenoid valve 8 and pressure reducing valve 7, finally into hydrogen fuel cell；
Wait a few minutes, observe hydrogen system 6 value of pressure gauge tend towards stability after, at triple valve exhaust solenoid valve 4 supply
Electricity makes its opening, and due to pipeline inside and outside differential pressure, nitrogen can carry air and quickly overflow in pipeline, to reach the mesh of discharge air
's；
The course of work number of repetition of this step is more, and air content is lower in hydrogen system, hydrogen pipeline；
Step 2, leak detection:
After the completion of air exhaust, continue the rated operating pressure that the nitrogen in hydrogen cylinder 10 is pressurized to hydrogen cylinder 10, this
Exhaust solenoid valve 4 at Shi Santong is closed, and hydrogen system solenoid valve 8 is opened, and pressure reducing valve 7 is opened；Observed pressure table 6 is read, and is stood
Observed pressure table 6 is read again after one hour, if reading is unchanged, indicates that hydrogen system, hydrogen pipeline leakproofness are good；Three are opened to connect
Exhaust solenoid valve 4 at head, discharges the nitrogen in pipeline；
Step 3, denitrogen gas:
It is filled into hydrogen cylinder 10 after hydrogen is pressurizeed by supercharging equipment, opens the hydrogen system electromagnetism in hydrogen system assembly
Valve 8, hydrogen is by entering metal hose 2 after hydrogen system solenoid valve 8 and pressure reducing valve 7, finally into hydrogen fuel cell 1；
After waiting a few minutes, observation 6 value of hydrogen system pressure gauge to tend towards stability, power to the exhaust solenoid valve 4 at triple valve
Make its opening, due to pipeline inside and outside differential pressure, nitrogen can carry air and quickly overflow in pipeline, to reach the mesh of discharge nitrogen
's；
The course of work number of repetition of this step is more, and nitrogen content is lower in hydrogen system, hydrogen pipeline.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.
Claims (8)
1. Hydrogen Fuel-cell Vehicles hydrogen pipeline is vented leakage detection apparatus, the Hydrogen Fuel-cell Vehicles include hydrogen system assembly (11), hydrogen
Fuel cell (1), the hydrogen system assembly (11), hydrogen fuel cell (1) are connected by metal hose (2), it is characterised in that:
Three-way connection (3) are set on the metal hose (2), two straightthrough ports of the three-way connection (3) are separately connected hydrogen
The third connectivity mouth of system synthesis (11) and hydrogen fuel cell (1), the three-way connection (3) connects exhaust pipe (5)；Described
Exhaust solenoid valve (4) are set on exhaust pipe (5).
2. Hydrogen Fuel-cell Vehicles hydrogen pipeline described in accordance with the claim 1 is vented leakage detection apparatus, it is characterised in that: the hydrogen system
Filler (9) are arranged in hydrogen cylinder (10) bottleneck in system assembly (11) setting hydrogen cylinder (10).
3. Hydrogen Fuel-cell Vehicles hydrogen pipeline is vented leakage detection apparatus according to claim 2, it is characterised in that: in the hydrogen
In system synthesis (11), from hydrogen cylinder (10) bottleneck to three-way connection (3), sets gradually hydrogen system solenoid valve (8), subtracts
Pressure valve (7).
4. Hydrogen Fuel-cell Vehicles hydrogen pipeline described in accordance with the claim 3 is vented leakage detection apparatus, it is characterised in that: in the hydrogen
In system synthesis (11), pressure gauge (6) are set between the pressure reducing valve (7) and three-way connection (3).
5. Hydrogen Fuel-cell Vehicles hydrogen pipeline described in accordance with the claim 1 is vented leakage detection apparatus, it is characterised in that: the metal
Hose (2) is corrugated flexible metal tube.
6. Hydrogen Fuel-cell Vehicles hydrogen pipeline described in accordance with the claim 1 is vented leakage detection apparatus, it is characterised in that: the threeway
Connector (3) is T font three-way connection.
7. Hydrogen Fuel-cell Vehicles hydrogen pipeline described in accordance with the claim 1 is vented leakage detection apparatus, it is characterised in that: the hydrogen combustion
Expect that battery (1) is proton exchange membrane hydrogen fuel cell.
8. hunting leak according to the exhaust of the exhaust leakage detection apparatus of Hydrogen Fuel-cell Vehicles hydrogen pipeline described in any one of claims 1 to 7
Method, it is characterised in that: the exhaust leak hunting method course of work is as follows:
Step 1, air-discharging:
It is filled into hydrogen cylinder (10) after nitrogen is pressurizeed by supercharging equipment, opens the hydrogen system solenoid valve in hydrogen system assembly
(8), nitrogen enters metal hose (2) afterwards by hydrogen system solenoid valve (8) and pressure reducing valve (7), finally into hydrogen fuel cell；
Wait a few minutes, observe hydrogen system pressure gauge (6) value tend towards stability after, at triple valve exhaust solenoid valve (4) supply
Electricity makes its opening, and due to pipeline inside and outside differential pressure, nitrogen can carry air and quickly overflow in pipeline, to reach the mesh of discharge air
's；
The course of work number of repetition of this step is more, and air content is lower in hydrogen system, hydrogen pipeline；
Step 2, leak detection:
After the completion of air exhaust, continue the rated operating pressure that the nitrogen in hydrogen cylinder (10) is pressurized to hydrogen cylinder (10), this
Exhaust solenoid valve (4) at Shi Santong is closed, and hydrogen system solenoid valve (8) is opened, and pressure reducing valve (7) is opened；Observed pressure table (6) is read
Number, observed pressure table (6) is read again after standing one hour, if reading is unchanged, indicates that hydrogen system, hydrogen pipeline leakproofness are good；
Exhaust solenoid valve (4) at three-way connection is opened, the nitrogen in pipeline is discharged；
Step 3, denitrogen gas:
It is filled into hydrogen cylinder (10) after hydrogen is pressurizeed by supercharging equipment, opens the hydrogen system solenoid valve in hydrogen system assembly
(8), hydrogen enters metal hose (2) afterwards by hydrogen system solenoid valve (8) and pressure reducing valve (7), finally arrives hydrogen fuel cell (1)
In；
After waiting a few minutes, observation hydrogen system pressure gauge (6) value to tend towards stability, power to the exhaust solenoid valve (4) at triple valve
Make its opening, due to pipeline inside and outside differential pressure, nitrogen can carry air and quickly overflow in pipeline, to reach the mesh of discharge nitrogen
's；
The course of work number of repetition of this step is more, and nitrogen content is lower in hydrogen system, hydrogen pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634118.4A CN109489919A (en) | 2018-12-29 | 2018-12-29 | Hydrogen Fuel-cell Vehicles hydrogen pipeline is vented leakage detection apparatus and its exhaust leak hunting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634118.4A CN109489919A (en) | 2018-12-29 | 2018-12-29 | Hydrogen Fuel-cell Vehicles hydrogen pipeline is vented leakage detection apparatus and its exhaust leak hunting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109489919A true CN109489919A (en) | 2019-03-19 |
Family
ID=65713243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811634118.4A Pending CN109489919A (en) | 2018-12-29 | 2018-12-29 | Hydrogen Fuel-cell Vehicles hydrogen pipeline is vented leakage detection apparatus and its exhaust leak hunting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109489919A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254295A (en) * | 2019-05-15 | 2019-09-20 | 重庆长安汽车股份有限公司 | A kind of hydrogen gas leakage processing system, method and automobile for hydrogen cell automobile |
| CN110793724A (en) * | 2019-10-31 | 2020-02-14 | 北京海德利森科技有限公司 | Vehicle-mounted hydrogen storage system leak detection device and method |
| CN111157180A (en) * | 2019-12-30 | 2020-05-15 | 中国科学院光电研究院 | System and method for measuring ground leakage of airship |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982910Y (en) * | 2006-12-22 | 2007-11-28 | 上海燃料电池汽车动力***有限公司 | Pressure keeping and leakage detection device of vehicular gas supply pipe of fuel cell |
| CN101324485A (en) * | 2008-07-11 | 2008-12-17 | 清华大学 | Test device and method for detecting security of fuel battery passenger car hydrogen feed system |
| CN209181975U (en) * | 2018-12-29 | 2019-07-30 | 汉腾汽车有限公司 | A kind of Hydrogen Fuel-cell Vehicles hydrogen pipeline exhaust leakage detection apparatus |
-
2018
- 2018-12-29 CN CN201811634118.4A patent/CN109489919A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982910Y (en) * | 2006-12-22 | 2007-11-28 | 上海燃料电池汽车动力***有限公司 | Pressure keeping and leakage detection device of vehicular gas supply pipe of fuel cell |
| CN101324485A (en) * | 2008-07-11 | 2008-12-17 | 清华大学 | Test device and method for detecting security of fuel battery passenger car hydrogen feed system |
| CN209181975U (en) * | 2018-12-29 | 2019-07-30 | 汉腾汽车有限公司 | A kind of Hydrogen Fuel-cell Vehicles hydrogen pipeline exhaust leakage detection apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254295A (en) * | 2019-05-15 | 2019-09-20 | 重庆长安汽车股份有限公司 | A kind of hydrogen gas leakage processing system, method and automobile for hydrogen cell automobile |
| CN110254295B (en) * | 2019-05-15 | 2022-10-11 | 重庆长安汽车股份有限公司 | Hydrogen leakage treatment system and method for hydrogen fuel cell automobile and automobile |
| CN110793724A (en) * | 2019-10-31 | 2020-02-14 | 北京海德利森科技有限公司 | Vehicle-mounted hydrogen storage system leak detection device and method |
| CN111157180A (en) * | 2019-12-30 | 2020-05-15 | 中国科学院光电研究院 | System and method for measuring ground leakage of airship |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109489919A (en) | Hydrogen Fuel-cell Vehicles hydrogen pipeline is vented leakage detection apparatus and its exhaust leak hunting method | |
| CN111609309A (en) | Skid-mounted hydrogenation station | |
| CN111609306B (en) | Safe and reliable's multi-functional hydrogen unloads system | |
| CN105699021A (en) | Vehicle fuel evaporation system air tightness detection method | |
| CN112331883A (en) | Movable fuel cell automobile and hydrogen supply device for fuel cell stack test | |
| CN111911798A (en) | Skid-mounted hydrogenation device for new energy automobile | |
| CN209181975U (en) | A kind of Hydrogen Fuel-cell Vehicles hydrogen pipeline exhaust leakage detection apparatus | |
| CN109580229A (en) | A kind of consecutive pressurization system syndication platform experimental rig | |
| CN203688152U (en) | Novel gas pressure reducer verifying device | |
| CN203132786U (en) | Valve parallel-connection pressure testing device | |
| CN208566176U (en) | A kind of hydrogen storage vessel, hydrogen storage vessel valve and fuel cell car | |
| CN213420663U (en) | High-pressure hydrogen storage and supply detection system | |
| CN112128626B (en) | High-pressure hydrogen storage and supply detection system | |
| CN210533632U (en) | Electric locomotive main drier connecting pipeline airtightness under-locomotive test device | |
| CN212204008U (en) | 70MPa hydrogenation machine injection system | |
| CN213120998U (en) | Multifunctional fuel cell stack leak hunting platform | |
| CN201651754U (en) | Portable single-tube LNG filling device | |
| CN221196987U (en) | Hydrogen tube bundle type container unloading device | |
| CN202193608U (en) | Car-mounted oil injection system | |
| CN216386185U (en) | Gas circuit system for checking gas meter sealing performance and ventilating detection | |
| CN112186221A (en) | Vehicle-mounted hydrogen supply device of hydrogen fuel cell passenger car | |
| CN212408251U (en) | Detection device for vehicle-mounted hydrogen system | |
| CN217111443U (en) | Liquid oxygen supply system | |
| CN212513515U (en) | Plug wire joint sealing test tool and sealing test system | |
| CN210442037U (en) | Valve leakage test testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190319 |
|
| WD01 | Invention patent application deemed withdrawn after publication |