CN109578809A - A kind of leakage monitor applied to hydrogen-feeding system - Google Patents
A kind of leakage monitor applied to hydrogen-feeding system Download PDFInfo
- Publication number
- CN109578809A CN109578809A CN201811639991.2A CN201811639991A CN109578809A CN 109578809 A CN109578809 A CN 109578809A CN 201811639991 A CN201811639991 A CN 201811639991A CN 109578809 A CN109578809 A CN 109578809A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- density
- ground
- cover plate
- gas collecting
- 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.)
- Granted
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 94
- 239000001257 hydrogen Substances 0.000 claims abstract description 94
- 239000007789 gas Substances 0.000 claims abstract description 32
- 239000011229 interlayer Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 18
- 238000007689 inspection Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/03—Control means
- F17C2250/036—Control means using alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/07—Actions triggered by measured parameters
- F17C2250/072—Action when predefined value is reached
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0184—Fuel cells
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention discloses a kind of leakage monitor applied to hydrogen-feeding system, comprising: the gas collecting jar with ground-on cover plate outside hydrogen storage bottle cylinder valve, the first density of hydrogen detector on hydrogen storage bottle cylinder valve, the second density of hydrogen detector in gas collecting jar with ground-on cover plate, controller, the monitor connected to the controller being electrically connected with the first density of hydrogen detector and the second density of hydrogen detector；Gas collecting jar with ground-on cover plate forms sealing space outside hydrogen storage bottle cylinder valve, pass through the density of hydrogen in the first density of hydrogen detector and the second density of hydrogen detectors measure hydrogen storage bottle and in gas collecting jar with ground-on cover plate respectively, density of hydrogen of the controller based on received first density of hydrogen detector and the second density of hydrogen detectors measure, hydrogen gas leakage rate is calculated, and feeds back to monitor；Gas collecting jar with ground-on cover plate be it is double-deck, thermostatic medium is passed through in interlayer；Gas collecting jar with ground-on cover plate is connect with hydrogen storage bottle cylinder valve by fastener.The present invention can effectively detect the leakage situation of hydrogen storage bottle, increase the safety in utilization of hydrogen-feeding system.
Description
Technical field
The present invention relates to vehicle-mounted hydrogen-feeding system technical field more particularly to a kind of leakage monitoring dresses applied to hydrogen-feeding system
It sets.
Background technique
Hydrogen is considered as current the most abundant clean energy resource, and the every field being just gradually applied in production and living is close
Nian Lai, hydrogen energy automobile are even more to have obtained biggish development.Final product after hydrogen releases energy in a fuel cell is clean
Water, realize the zero-emission of carbon dioxide, there is no any burden to environment, hydrogen fuel cell is generally considered future source of energy
Ultimate solution.
But the leakage problem of hydrogen-feeding system always affect hydrogen using safe, therefore how effectively to monitor, examine
The leakage point of disconnected hydrogen-feeding system out is most important to the safe handling of hydrogen-feeding system, while providing the maintenance of hydrogen-feeding system more square
Just guidance reduces the security risk that hydrogen-feeding system uses, also reduces the cost of overhaul.
Summary of the invention
In view of this, the embodiment provides a kind of leakage monitors applied to hydrogen-feeding system, in hydrogen supply
The density of hydrogen situation of energy real-time monitoring hydrogen storage bottleneck during system use helps user to understand hydrogen-feeding system and leaks feelings
Condition improves hydrogen-feeding system safety in utilization.
To achieve the above object, present invention employs a kind of technical solutions: a kind of leakage monitoring applied to hydrogen-feeding system
Device, comprising: the gas collecting jar with ground-on cover plate outside hydrogen storage bottle cylinder valve, the first density of hydrogen detector on the hydrogen storage bottle cylinder valve,
The second density of hydrogen detector and the first density of hydrogen detector and the second density of hydrogen in the gas collecting jar with ground-on cover plate are examined
Survey the controller that device is electrically connected, the monitor connecting with the controller；
The gas collecting jar with ground-on cover plate forms sealing space outside hydrogen storage bottle cylinder valve, passes through the first density of hydrogen detector and second respectively
Density of hydrogen in density of hydrogen detectors measure hydrogen storage bottle and in gas collecting jar with ground-on cover plate, it is dense that the controller is based on received first hydrogen
The density of hydrogen of detector and the second density of hydrogen detectors measure is spent, calculates hydrogen gas leakage rate, and feed back to the monitor；
The gas collecting jar with ground-on cover plate is double-deck, including internal layer and outer layer, is passed through perseverance in the interlayer between the internal layer and outer layer
Warm medium；The gas collecting jar with ground-on cover plate is connect with hydrogen storage bottle cylinder valve by fastener.
Further, it is equipped with washer between the gas collecting jar with ground-on cover plate and hydrogen storage bottle cylinder valve, washer is compacted by the fastener
Sealing.
Further, the washer is rubber ring.
Further, the fastener is nuts and bolt.
Further, the fastener includes at least two groups.
Further, upper diversion pipe and lower diversion pipe are respectively equipped on the gas collecting jar with ground-on cover plate, the thermostatic medium passes through institute
It states diversion pipe to enter in the interlayer between internal layer and outer layer, and is flowed out through the lower diversion pipe.
Further, the monitor includes: display and alarm, checks the first density of hydrogen by the display
The density of hydrogen of detector and the second density of hydrogen detectors measure, is sounded an alarm by the alarm.
The technical solution that the embodiment of the present invention provides has the benefit that (1) integrated form saves each functional component
Between whole connecting lines and connector, structure size substantially reduce, system leak source is greatly decreased, and have overpressure protection,
One-way guide flow function；(2) easy to operate, allow the hydrogen-feeding system more secure and reliable of hydrogen cell automobile, can independently be arranged in
On vehicle body, system assembly efficiency is greatly improved, and product cost can also be greatly reduced；(3) long-range monitoring is realized, operator can be real
When obtain hydrogen-feeding system leakage situation and convenient processing in time it is abnormal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the leakage monitor applied to hydrogen-feeding system of the invention.
In figure: 1- hydrogen storage bottle cylinder valve, 2- hydrogen storage bottleneck, 3- gas collecting jar with ground-on cover plate, 4- the first density of hydrogen detector, the second hydrogen of 5-
Concentration detector, 6- controller, 7- monitor, 8- display, 9- alarm, 10- washer, 11- fastener, 12- nut, 13-
Bolt, 14- internal layer, 15- outer layer, the upper diversion pipe of 16-, diversion pipe under 17-.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
As shown in Figure 1, embodiment of the invention discloses a kind of leakage monitors applied to hydrogen-feeding system, including set
In the gas collecting jar with ground-on cover plate 3 outside hydrogen storage bottle cylinder valve 1, the first density of hydrogen detector 4 on the hydrogen storage bottle cylinder valve 1, set on described
The second density of hydrogen detector 5 and the first density of hydrogen detector 4 and the second density of hydrogen detector 5 in gas collecting jar with ground-on cover plate 3
The controller 6 being electrically connected, the monitor 7 being connect with the controller 6.
The gas collecting jar with ground-on cover plate 3 is located at outside hydrogen storage bottle cylinder valve 1, sealing space is formed, to test the hydrogen of the hydrogen storage bottle cylinder valve 1
Leakage.It is equipped with washer 10 between the gas collecting jar with ground-on cover plate 3 and hydrogen storage bottle cylinder valve 1, the washer 10 is pressed and sealed by fastener 11.
Preferably, the washer 10 is rubber ring.Preferably, the fastener 11 is nut 12 and bolt 13.The fastener 11 to
It less include two groups.
Preferably, the gas collecting jar with ground-on cover plate 3 is double-deck, including internal layer 14 and outer layer 15.It is also set respectively on the gas collecting jar with ground-on cover plate 3
There are upper diversion pipe 16 and lower diversion pipe 17, the upper diversion pipe 16 and lower diversion pipe 17 can be located at the gas collecting jar with ground-on cover plate 3
Top and bottom, thermostatic medium (including but not limited to gas or liquid etc.) can enter internal layer 14 by the upper diversion pipe 16
It in interlayer between outer layer 15, and is flowed out through the lower diversion pipe 17, by circulating for thermostatic medium, so that the collection
The interior environment temperature of inflator 3 is kept constant, thus density of hydrogen or hydrogen gas leakage rate under convenient accurate test steady temperature.
The first density of hydrogen detector 4 is set at hydrogen storage bottleneck 2, for measuring the density of hydrogen for adding hydrogen mouth；It is described
Second density of hydrogen detector 5 is used to measure the density of hydrogen in gas collecting jar with ground-on cover plate 3.The first density of hydrogen detector 4 and second
Density of hydrogen detector 5 can be connect by wired or wireless mode with controller 6, and the density of hydrogen measured passes
It is defeated by the controller 6.The monitor 7 can be connect by wired or wireless mode with controller 6, the monitor 7
It include: display 8 and alarm 9, the controller 6 shows density of hydrogen by control display 8, and operator can pass through institute
It states display 8 and is directly viewable result；The controller 6 is sounded an alarm by controlling the alarm 9, to remind operator,
Without operator's on-site supervision.
Can be measured according to the first density of hydrogen detector 4 and the second density of hydrogen detector 5 two of the controller 6
Density of hydrogen calculates hydrogen gas leakage rate, and alarm threshold value is arranged, will be described in control if hydrogen gas leakage rate is more than alarm threshold value
Alarm 9 sounds an alarm.The controller 6 can monitor the leakage situation of multiple hydrogen storage bottles of hydrogen-feeding system simultaneously, and pass through
The display 8 is directly viewable the leakage situation of each hydrogen storage bottle.
The technical solution that the embodiment of the present invention provides has the benefit that (1) integrated form saves each functional component
Between whole connecting lines and connector, structure size substantially reduce, system leak source is greatly decreased, and have overpressure protection,
One-way guide flow function；(2) easy to operate, allow the hydrogen-feeding system more secure and reliable of hydrogen cell automobile, can independently be arranged in
On vehicle body, system assembly efficiency is greatly improved, and product cost can also be greatly reduced；(3) long-range monitoring is realized, operator can be real
When obtain hydrogen-feeding system leakage situation and convenient processing in time it is abnormal.
It is worth noting that: in the present invention unless specifically defined or limited otherwise, term " installation ", " connected ",
The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or one
Ground connection, can be mechanical connection, for the ordinary skill in the art, can understand above-mentioned art as the case may be
The concrete meaning of language in the present invention.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of leakage monitor applied to hydrogen-feeding system, it is characterised in that: include: the gas collection outside hydrogen storage bottle cylinder valve
Cylinder, the inspection of the first density of hydrogen detector on the hydrogen storage bottle cylinder valve, the second density of hydrogen in the gas collecting jar with ground-on cover plate
Survey device, the controller being electrically connected with the first density of hydrogen detector and the second density of hydrogen detector and the control
The monitor of device connection processed；
The gas collecting jar with ground-on cover plate forms sealing space outside hydrogen storage bottle cylinder valve, passes through the first density of hydrogen detector and the second hydrogen respectively
Concentration detector measures the density of hydrogen in hydrogen storage bottle and in gas collecting jar with ground-on cover plate, and the controller is examined based on received first density of hydrogen
The density of hydrogen of device and the second density of hydrogen detectors measure is surveyed, calculates hydrogen gas leakage rate, and feed back to the monitor；
The gas collecting jar with ground-on cover plate is double-deck, including internal layer and outer layer, and constant temperature Jie is passed through in the interlayer between the internal layer and outer layer
Matter；The gas collecting jar with ground-on cover plate is connect with hydrogen storage bottle cylinder valve by fastener.
2. the leakage monitor according to claim 1 applied to hydrogen-feeding system, it is characterised in that: the gas collecting jar with ground-on cover plate with
It is equipped with washer between hydrogen storage bottle cylinder valve, washer is pressed and sealed by the fastener.
3. the leakage monitor according to claim 2 applied to hydrogen-feeding system, it is characterised in that: the washer is rubber
Cushion rubber.
4. the leakage monitor according to claim 1 applied to hydrogen-feeding system, it is characterised in that: the fastener is
Nuts and bolt.
5. the leakage monitor according to claim 4 applied to hydrogen-feeding system, it is characterised in that: the fastener is extremely
It less include two groups.
6. the leakage monitor according to claim 1 applied to hydrogen-feeding system, it is characterised in that: in the gas collecting jar with ground-on cover plate
On be respectively equipped with diversion pipe and lower diversion pipe, the thermostatic medium is entered between internal layer and outer layer by the upper diversion pipe
In interlayer, and flowed out through the lower diversion pipe.
7. the leakage monitor according to claim 1 applied to hydrogen-feeding system, it is characterised in that: the monitor packet
Include: display and alarm check that the first density of hydrogen detector and the second density of hydrogen detector are surveyed by the display
The density of hydrogen of amount is sounded an alarm by the alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639991.2A CN109578809B (en) | 2018-12-29 | 2018-12-29 | Leakage monitoring device applied to hydrogen supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639991.2A CN109578809B (en) | 2018-12-29 | 2018-12-29 | Leakage monitoring device applied to hydrogen supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578809A true CN109578809A (en) | 2019-04-05 |
| CN109578809B CN109578809B (en) | 2024-02-06 |
Family
ID=65932687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811639991.2A Active CN109578809B (en) | 2018-12-29 | 2018-12-29 | Leakage monitoring device applied to hydrogen supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109578809B (en) |
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 |
| CN112649462A (en) * | 2020-12-25 | 2021-04-13 | 上海布尔自动化控制有限公司 | High-purity hydrogen energy detection system |
| CN112785819A (en) * | 2019-11-06 | 2021-05-11 | 中国石油化工股份有限公司 | High-pressure hydrogen equipment leakage alarm protection system and alarm protection method |
| WO2022029021A1 (en) | 2020-08-07 | 2022-02-10 | Cellcentric Gmbh & Co. Kg | Hydrogen leakage detection system and method |
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| 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 |
| CN112785819A (en) * | 2019-11-06 | 2021-05-11 | 中国石油化工股份有限公司 | High-pressure hydrogen equipment leakage alarm protection system and alarm protection method |
| WO2022029021A1 (en) | 2020-08-07 | 2022-02-10 | Cellcentric Gmbh & Co. Kg | Hydrogen leakage detection system and method |
| CN112649462A (en) * | 2020-12-25 | 2021-04-13 | 上海布尔自动化控制有限公司 | High-purity hydrogen energy detection system |
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