CN109578809B - Leakage monitoring device applied to hydrogen supply system - Google Patents
Leakage monitoring device applied to hydrogen supply system Download PDFInfo
- Publication number
- CN109578809B CN109578809B CN201811639991.2A CN201811639991A CN109578809B CN 109578809 B CN109578809 B CN 109578809B CN 201811639991 A CN201811639991 A CN 201811639991A CN 109578809 B CN109578809 B CN 109578809B
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- CN
- China
- Prior art keywords
- hydrogen
- concentration detector
- hydrogen concentration
- supply system
- gas cylinder
- 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.)
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Links
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 125
- 239000001257 hydrogen Substances 0.000 title claims abstract description 125
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 238000012806 monitoring device Methods 0.000 title claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 27
- 239000011229 interlayer Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims description 10
- 239000000446 fuel Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 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 invention discloses a leakage monitoring device applied to a hydrogen supply system, which comprises: the device comprises a gas cylinder arranged outside a hydrogen storage bottle valve, a first hydrogen concentration detector arranged on the hydrogen storage bottle valve, a second hydrogen concentration detector arranged in the gas cylinder, a controller electrically connected with the first hydrogen concentration detector and the second hydrogen concentration detector, and a monitor connected with the controller; the controller calculates the hydrogen leakage rate based on the received hydrogen concentration measured by the first hydrogen concentration detector and the second hydrogen concentration detector and feeds the hydrogen leakage rate back to the monitor; the gas cylinder is double-layered, and a constant temperature medium is introduced into the interlayer; the gas cylinder is connected with the hydrogen storage bottle valve through a fastener. The invention can effectively detect the leakage condition of the hydrogen storage bottle and increase the use safety of the hydrogen supply system.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted hydrogen supply systems, in particular to a leakage monitoring device applied to a hydrogen supply system.
Background
Hydrogen is considered as the most abundant clean energy source at present, and is gradually applied to various fields in production and life, and in recent years, hydrogen automobiles are greatly developed. The end product of hydrogen after releasing energy in the fuel cell is clean water, zero emission of carbon dioxide is achieved, no burden is placed on the environment, and hydrogen fuel cells are widely regarded as an ultimate solution for future energy sources.
However, the problem of leakage of the hydrogen supply system always affects the use safety of hydrogen, so how to effectively monitor and diagnose the leakage point of the hydrogen supply system is important for the safe use of the hydrogen supply system, and simultaneously provides more convenient guidance for the overhaul of the hydrogen supply system, reduces the use safety risk of the hydrogen supply system and also reduces the overhaul cost.
Disclosure of Invention
In view of this, the embodiment of the invention provides a leakage monitoring device applied to a hydrogen supply system, which can monitor the hydrogen concentration condition of a hydrogen storage bottle mouth in real time in the use process of the hydrogen supply system, help a user to know the leakage condition of the hydrogen supply system, and improve the use safety of the hydrogen supply system.
In order to achieve the above purpose, the present invention adopts a technical scheme that: a leak monitoring apparatus for use in a hydrogen supply system, comprising: the hydrogen storage device comprises a gas cylinder arranged outside a hydrogen storage bottle valve, a first hydrogen concentration detector arranged on the hydrogen storage bottle valve, a second hydrogen concentration detector arranged in the gas cylinder, a controller electrically connected with the first hydrogen concentration detector and the second hydrogen concentration detector, and a monitor connected with the controller;
the controller calculates the hydrogen leakage rate based on the received hydrogen concentration measured by the first hydrogen concentration detector and the second hydrogen concentration detector and feeds the hydrogen leakage rate back to the monitor;
the gas cylinder is double-layered and comprises an inner layer and an outer layer, and a constant temperature medium is introduced into an interlayer between the inner layer and the outer layer; the gas cylinder is connected with the hydrogen storage bottle valve through a fastener.
Further, a gasket is arranged between the gas cylinder and the hydrogen storage bottle valve, and the gasket is compacted and sealed through the fastener.
Further, the gasket is a rubber ring.
Further, the fasteners are nuts and bolts.
Further, the fastener includes at least two sets.
Further, an upper flow guide pipe and a lower flow guide pipe are respectively arranged on the gas cylinder, and the constant temperature medium enters an interlayer between the inner layer and the outer layer through the upper flow guide pipe and flows out through the lower flow guide pipe.
Further, the monitor includes: the hydrogen concentration detector is used for detecting the hydrogen concentration measured by the first hydrogen concentration detector and the second hydrogen concentration detector, and the alarm is sent out by the alarm.
The technical scheme provided by the embodiment of the invention has the beneficial effects that: (1) All connecting pipelines and joints among all functional components are omitted in an integrated manner, the structural size is greatly reduced, the leakage points of the system are greatly reduced, and the integrated type solar energy system has an overpressure protection and unidirectional flow guide function; (2) The operation is simple, the hydrogen supply system of the hydrogen fuel cell automobile is safer and more reliable, the hydrogen supply system can be independently arranged on the automobile body, the assembly efficiency of the system is greatly improved, and the product cost is also greatly reduced; (3) The remote monitoring is realized, and operators can acquire the leakage condition of the hydrogen supply system in real time and conveniently and timely handle the abnormality.
Drawings
Fig. 1 is a schematic structural view of a leak monitoring apparatus applied to a hydrogen supply system according to the present invention.
In the figure: the hydrogen storage bottle comprises a 1-hydrogen storage bottle valve, a 2-hydrogen storage bottle opening, a 3-gas cylinder, a 4-first hydrogen concentration detector, a 5-second hydrogen concentration detector, a 6-controller, a 7-monitor, an 8-display, a 9-alarm, 11-fasteners, 12-nuts, 13-bolts, 14-inner layers and 15-outer layers.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention discloses a leakage monitoring device applied to a hydrogen supply system, which comprises a gas cylinder 3 arranged outside a hydrogen storage bottle valve 1, a first hydrogen concentration detector 4 arranged on the hydrogen storage bottle valve 1, a second hydrogen concentration detector 5 arranged in the gas cylinder 3, a controller 6 electrically connected with both the first hydrogen concentration detector 4 and the second hydrogen concentration detector 5, and a monitor 7 connected with the controller 6.
The gas cylinder 3 is positioned outside the hydrogen storage bottle valve 1 to form a sealed space for testing the hydrogen leakage of the hydrogen storage bottle valve 1. A gasket is arranged between the gas cylinder 3 and the hydrogen storage bottle valve 1, and the gasket is compacted and sealed by a fastener 11. Preferably, the gasket is a rubber ring. Preferably, the fastening member 11 is a nut 12 and a bolt 13. The fastener 11 includes at least two sets.
Preferably, the gas cartridge 3 is double-layered, comprising an inner layer 14 and an outer layer 15. The upper flow guide pipe and the lower flow guide pipe are respectively arranged on the gas cylinder 3, the upper flow guide pipe and the lower flow guide pipe can be respectively arranged at the upper end and the lower end of the gas cylinder 3, a constant temperature medium (including but not limited to gas or liquid and the like) can enter an interlayer between the inner layer 14 and the outer layer 15 through the upper flow guide pipe and flow out through the lower flow guide pipe, and the internal environment temperature of the gas cylinder 3 is kept constant through the circulation flow of the constant temperature medium, so that the hydrogen concentration or the hydrogen leakage rate under the constant temperature can be conveniently and accurately tested.
The first hydrogen concentration detector 4 is arranged at the hydrogen storage bottle mouth 2 and is used for measuring the hydrogen concentration of the hydrogenation port; the second hydrogen concentration detector 5 is used to measure the hydrogen concentration in the gas cylinder 3. The first hydrogen concentration detector 4 and the second hydrogen concentration detector 5 may be connected to the controller 6 by wired or wireless means, and transmit the hydrogen concentrations measured by the first hydrogen concentration detector and the second hydrogen concentration detector to the controller 6. The monitor 7 may be connected to the controller 6 by wired or wireless means, and the monitor 7 includes: a display 8 and an alarm 9, wherein the controller 6 controls the display 8 to display the hydrogen concentration, and an operator can directly check the result through the display 8; the controller 6 gives an alarm by controlling the alarm 9 to alert the operator without the operator having to monitor on site.
The controller 6 may calculate the hydrogen leakage rate from the two hydrogen concentrations measured by the first hydrogen concentration detector 4 and the second hydrogen concentration detector 5, and set an alarm threshold value, and if the hydrogen leakage rate exceeds the alarm threshold value, control the alarm 9 to issue an alarm. The controller 6 can monitor the leakage condition of a plurality of hydrogen storage bottles of the hydrogen supply system at the same time, and directly check the leakage condition of each hydrogen storage bottle through the display 8.
The technical scheme provided by the embodiment of the invention has the beneficial effects that: (1) All connecting pipelines and joints among all functional components are omitted in an integrated manner, the structural size is greatly reduced, the leakage points of the system are greatly reduced, and the integrated type solar energy system has an overpressure protection and unidirectional flow guide function; (2) The operation is simple, the hydrogen supply system of the hydrogen fuel cell automobile is safer and more reliable, the hydrogen supply system can be independently arranged on the automobile body, the assembly efficiency of the system is greatly improved, and the product cost is also greatly reduced; (3) The remote monitoring is realized, and operators can acquire the leakage condition of the hydrogen supply system in real time and conveniently and timely handle the abnormality.
Noteworthy are: in the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, as will be understood by those of ordinary skill in the art, in view of the specific meaning of the terms in the present invention.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the protection sought herein.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. A leak monitoring device for a hydrogen supply system, characterized by: comprising the following steps: the hydrogen storage device comprises a gas cylinder arranged outside a hydrogen storage bottle valve, a first hydrogen concentration detector arranged on the hydrogen storage bottle valve, a second hydrogen concentration detector arranged in the gas cylinder, a controller electrically connected with the first hydrogen concentration detector and the second hydrogen concentration detector, and a monitor connected with the controller;
the controller calculates the hydrogen leakage rate based on the received hydrogen concentration measured by the first hydrogen concentration detector and the second hydrogen concentration detector and feeds the hydrogen leakage rate back to the monitor;
the gas cylinder is double-layered and comprises an inner layer and an outer layer, and a constant temperature medium is introduced into an interlayer between the inner layer and the outer layer; the gas cylinder is connected with the hydrogen storage bottle valve through a fastener.
2. The leak monitoring apparatus for a hydrogen supply system according to claim 1, wherein: a gasket is arranged between the gas cylinder and the hydrogen storage bottle valve, and the gasket is compacted and sealed through the fastener.
3. The leak monitoring apparatus for a hydrogen supply system according to claim 2, wherein: the gasket is a rubber ring.
4. The leak monitoring apparatus for a hydrogen supply system according to claim 1, wherein: the fasteners are nuts and bolts.
5. The leak monitoring apparatus for a hydrogen supply system as claimed in claim 4, wherein: the fastener includes at least two sets.
6. The leak monitoring apparatus for a hydrogen supply system according to claim 1, wherein: an upper flow guide pipe and a lower flow guide pipe are respectively arranged on the gas cylinder, and the constant temperature medium enters an interlayer between the inner layer and the outer layer through the upper flow guide pipe and flows out through the lower flow guide pipe.
7. The leak monitoring apparatus for a hydrogen supply system according to claim 1, wherein: the monitor includes: the hydrogen concentration detector is used for detecting the hydrogen concentration measured by the first hydrogen concentration detector and the second hydrogen concentration detector, and the alarm is sent out 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 CN109578809A (en) | 2019-04-05 |
| CN109578809B true CN109578809B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811639991.2A Active CN109578809B (en) | 2018-12-29 | 2018-12-29 | Leakage monitoring device applied to hydrogen supply system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN109578809A (en) | 2019-04-05 |
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