CN114110442A - Hydrogen leakage early warning device for hydrogen fuel cell passenger car - Google Patents
Hydrogen leakage early warning device for hydrogen fuel cell passenger car Download PDFInfo
- Publication number
- CN114110442A CN114110442A CN202111413601.1A CN202111413601A CN114110442A CN 114110442 A CN114110442 A CN 114110442A CN 202111413601 A CN202111413601 A CN 202111413601A CN 114110442 A CN114110442 A CN 114110442A
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- China
- Prior art keywords
- hydrogen
- early warning
- warning device
- fuel cell
- passenger car
- 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
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 168
- 239000001257 hydrogen Substances 0.000 title claims abstract description 168
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 168
- 239000000446 fuel Substances 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 10
- 239000011232 storage material Substances 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 29
- 238000012423 maintenance Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses a hydrogen leakage early warning device for a hydrogen fuel cell passenger car, which comprises a hydrogen leakage early warning device, wherein a first early warning mechanism is arranged in a first protective shell of the hydrogen leakage early warning device, and a second early warning mechanism is arranged in a second protective shell of the hydrogen leakage early warning device; the inner sleeves of the first protective shell and the second protective shell are arranged on the outer sleeve through a connecting plate; a hydrogen absorption cavity is arranged between the inner sleeve and the outer sleeve, and the inner wall of the hydrogen absorption cavity is provided with a solid hydrogen storage material; the hydrogen detector is arranged on the inner wall of the outer sleeve and is respectively in communication connection with the alarm and the electromagnetic valve on the hydrogen pipeline.
Description
Technical Field
The invention relates to the technical field of hydrogen fuel cell passenger cars, in particular to a hydrogen leakage early warning device for a hydrogen fuel cell passenger car.
Background
Chinese patent CN108679437B discloses a leak-proof hydrogen tank for a hydrogen powered vehicle, which belongs to the technical field of new energy vehicles and aims to solve the problems that the hydrogen tank of the hydrogen powered vehicle in the prior art is likely to leak in the using process and has potential safety hazards;
in the prior art, a hydrogen transmission pipeline for a hydrogen fuel cell passenger car is not of an integrated structure, so that the problem of hydrogen leakage can occur at a joint, and the problem of safety accidents caused by the hydrogen leakage to the external environment can occur; and the common leakage early warning device only plays a role of alarming and cannot timely process the hydrogen generated by leakage.
Disclosure of Invention
The invention aims to solve the problems of the background technology and provides a hydrogen leakage early warning device for a hydrogen fuel cell passenger car; and informing a driver and other workers to timely carry out flameout, maintenance and other work, and cutting off the gas circulation on the hydrogen pipeline by the electromagnetic valve and timely treating the leaked hydrogen.
The purpose of the invention can be realized by the following technical scheme:
a hydrogen leakage early warning device for a hydrogen fuel cell passenger car comprises a hydrogen leakage early warning device, wherein a first early warning mechanism is arranged in a first protective shell of the hydrogen leakage early warning device, and a second early warning mechanism is arranged in a second protective shell of the hydrogen leakage early warning device;
the inner sleeves of the first protective shell and the second protective shell are arranged on the outer sleeve through a connecting plate; a hydrogen absorption cavity is arranged between the inner sleeve and the outer sleeve, and the inner wall of the hydrogen absorption cavity is provided with a solid hydrogen storage material;
and a hydrogen detector is arranged on the inner wall of the outer sleeve and is respectively in communication connection with the alarm and the electromagnetic valve on the hydrogen pipeline.
As a further scheme of the invention: first protective housing and second protective housing are the rectangle structure, and first protective housing is located the top of hydrogen pipeline, and second protective housing is located the below of hydrogen pipeline.
As a further scheme of the invention: the first early warning mechanism and the second early warning mechanism are identical in structure.
As a further scheme of the invention: the inner walls of the first protective shell and the second protective shell are correspondingly connected with the outer sleeve through support rods.
As a further scheme of the invention: the middle part of the outer sleeve is provided with a groove matched with the inner sleeve, the inner sleeve is arranged in the groove of the outer sleeve, the middle part of the inner sleeve is provided with an annular groove matched with the connecting sleeve, and through holes are uniformly formed in the annular groove.
As a further scheme of the invention: a sealing gasket is arranged on the connecting plate, and a sealing ring is arranged on the inner sleeve.
As a further scheme of the invention: the bottom of first protective housing and the top of second protective housing are provided with the engaging lug respectively, and the semicircular structure and the hydrogen pipeline looks adaptation of engaging lug, two engaging lugs carry out interconnect through fastening bolt.
As a further scheme of the invention: the middle part of the connecting lug is of a semicircular structure, and the two sides of the connecting lug are of horizontal structures.
As a further scheme of the invention: the connecting lug is provided with a sealing layer.
The invention has the beneficial effects that:
(1) when hydrogen leakage occurs at the joint of the connecting sleeve and the hydrogen pipeline, the hydrogen detector firstly detects a hydrogen leakage signal and transmits the signal to the alarm and the electromagnetic valve on the hydrogen pipeline, the alarm sends out an alarm signal, a driver and other workers timely perform flameout, maintenance and other work, the electromagnetic valve cuts off gas circulation on the hydrogen pipeline, and meanwhile, leaked hydrogen enters the first early warning mechanism and the second early warning mechanism for processing, so that further large amount of hydrogen is prevented from leaking outwards, therefore, the hydrogen leakage early warning device can timely give an alarm to inform the workers of maintenance, large safety accidents are avoided, further hydrogen leakage can be controlled, safety problems cannot occur, and time is won for manual maintenance;
(2) by arranging the sealing layer, the sealing performance between an inner cavity formed by the first protective shell and the second protective shell and the outside is ensured, and the sealing performance of the hydrogen leakage early warning device is ensured again on the basis of the sealing gasket of the connecting plate and the sealing ring of the inner sleeve, so that the leaked hydrogen cannot contact with air; the two sealing structures can prevent the solid hydrogen storage material in the hydrogen absorption cavity from contacting with the hydrogen in the air, so that the hydrogen absorption cavity has the advantage of long service life;
(3) the first protection shell with the first early warning mechanism and the second protection shell with the second early warning mechanism are directly sleeved on the hydrogen pipeline, and the first protection shell and the second protection shell are fixedly connected through the fastening bolts, so that the hydrogen leakage early warning device is installed.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of a hydrogen leakage warning apparatus according to the present invention;
FIG. 3 is a schematic structural diagram of a second warning mechanism according to the present invention;
FIG. 4 is a schematic structural diagram of a first warning mechanism according to the present invention;
fig. 5 is a side view of the present invention.
In the figure: 1. a hydrogen gas conduit; 2. a first protective housing; 3. an alarm; 4. a hydrogen detector; 5. a first early warning mechanism; 6. a second early warning mechanism; 7. a support bar; 8. an outer sleeve; 9. an inner sleeve; 10. a connecting plate; 11. a solid hydrogen storage material; 12. connecting a sleeve; 13. a second protective housing; 14. a gasket; 15. a seal ring; 16. an annular groove; 17. a through hole; 18. connecting lugs; 19. fastening a bolt; 20. and (7) sealing the layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the present invention relates to a hydrogen leakage warning device for a hydrogen fuel cell passenger car, which includes a hydrogen pipeline 1, a connecting sleeve 12 and a hydrogen leakage warning device;
the two hydrogen pipelines 1 are connected with each other through a connecting sleeve 12, and a hydrogen leakage early warning device is sleeved on the connecting sleeve 12;
when the hydrogen leakage early warning device is used, the connection sleeve 12 and the hydrogen pipeline 1 are not integrated, so that the problem of hydrogen leakage can occur at the connection position, and the hydrogen leakage early warning device is arranged at the connection sleeve 12, so that when hydrogen is leaked, an alarm can be triggered in time, and meanwhile, the leakage position is sealed, and the problem of safety accidents caused by hydrogen leakage to the external environment is avoided;
the hydrogen leakage early warning device comprises a first protective shell 2, an alarm 3, a hydrogen detector 4, a first early warning mechanism 5, a second early warning mechanism 6 and a second protective shell 13, wherein the first protective shell 2 and the second protective shell 13 are both rectangular structures, the first protective shell 2 is positioned above a hydrogen pipeline 1, the second protective shell 13 is positioned below the hydrogen pipeline 1, the first early warning mechanism 5 is arranged in the first protective shell 2, and the second early warning mechanism 6 is arranged in the second protective shell 13;
wherein, a hydrogen detector 4 is arranged in the first protective shell 2, an alarm 3 is arranged on the outer wall of the first protective shell 2, and the hydrogen detector 4 is respectively in communication connection with the alarm 3 and an electromagnetic valve on a hydrogen pipeline; the model of the hydrogen detector 4 is PGD 3-C-H2;
when the hydrogen leakage early warning device is used, when hydrogen leakage occurs at the joint of the connecting sleeve 12 and the hydrogen pipeline 1, the hydrogen detector 4 firstly detects a hydrogen leakage signal and transmits the signal to the alarm 3 and the electromagnetic valve on the hydrogen pipeline, the alarm 3 sends out an alarm signal, a driver and other workers timely perform flameout, maintenance and other work, the electromagnetic valve cuts off gas circulation on the hydrogen pipeline, meanwhile, the leaked hydrogen enters the first early warning mechanism 5 and the second early warning mechanism 6 for processing, further leakage of a large amount of hydrogen is avoided, therefore, the hydrogen leakage early warning device can timely give an alarm, inform the workers of maintenance, avoid large safety accidents, control further leakage of hydrogen, avoid safety problems and strive for manual maintenance;
referring to fig. 3 and 4, the first warning mechanism 5 and the second warning mechanism 6 have the same structure, and each include a support rod 7, an outer sleeve 8, an inner sleeve 9, a connecting plate 10, a solid hydrogen storage material 11, a sealing gasket 14, a sealing ring 15, an annular groove 16, and a through hole 17; the supporting rod 7 is correspondingly arranged on the inner walls of the first protective shell 2 and the second protective shell 13, the supporting rod 7 is connected with the outer sleeve 8, a groove matched with the inner sleeve 9 is formed in the middle of the outer sleeve 8, the inner sleeve 9 is arranged in the groove of the outer sleeve 8, an annular groove 16 matched with the connecting sleeve 12 is formed in the middle of the inner sleeve 9, through holes 17 are uniformly formed in the annular groove 16, and the inner sleeve 9 is arranged on the horizontal plane of the outer sleeve 8 through a connecting plate 10; a hydrogen absorption cavity is arranged between the inner sleeve 9 and the outer sleeve 8, and the inner wall of the hydrogen absorption cavity is provided with a solid hydrogen storage material 11;
wherein, the hydrogen detector 4 is positioned on the inner wall of the outer sleeve 8; the outer sleeve 8 is of a semi-cylindrical structure, the inner sleeve 9 is also of a semi-cylindrical structure, and the diameter of the inner sleeve 9 is matched with that of the hydrogen pipeline 1; the outer sleeve 8 and the inner sleeve 9 are designed to be matched with the hydrogen pipeline 1 and the connecting sleeve 12, and when the hydrogen pipeline is installed, the outer sleeve 8 and the inner sleeve 9 are only required to be sleeved on the hydrogen pipeline 1, so that the corresponding installation is convenient;
a sealing gasket 14 is arranged on the connecting plate 10, a sealing ring 15 is arranged on the inner sleeve 9, and the first early warning mechanism 5 and the second early warning mechanism 6 can be in close contact with each other by arranging the sealing gasket 14 and the sealing ring 15, so that the sealing property of the first early warning mechanism 5 and the second early warning mechanism 6 which are connected together can be ensured;
when in use; when hydrogen leaks, hydrogen enters the hydrogen absorption cavity from the through hole 17 on the inner sleeve 9, the solid hydrogen storage material 11 in the hydrogen absorption cavity absorbs the leaked hydrogen, meanwhile, the hydrogen detector 4 detects a hydrogen leakage signal and transmits the signal to the alarm 3 to send an alarm signal, and the inner sleeve 9 is tightly sleeved on the connecting sleeve 12 through the sealing ring 15, so that the hydrogen can be effectively prevented from leaking to the external environment; therefore, the hydrogen leakage early warning device consisting of the first early warning mechanism 5 and the second early warning mechanism 6 realizes the functions of detecting hydrogen leakage and avoiding hydrogen leakage into the air; the problem that potential safety hazards exist due to the fact that a hydrogen pipeline of a hydrogen power automobile is likely to leak in the using process in the prior art is solved;
referring to fig. 5, the bottom of the first protective housing 2 and the top of the second protective housing 13 are respectively provided with a connecting lug 18, the middle of the connecting lug 18 is a semicircular structure, two sides of the connecting lug 18 are horizontal structures, the semicircular structure of the connecting lug 18 is matched with the hydrogen pipeline 1, and the two connecting lugs 18 are connected with each other through a fastening bolt 19;
the sealing layer 20 is arranged on the connecting lug 18, so that good sealing performance between an inner cavity formed by the first protective shell 2 and the second protective shell 13 and the outside is ensured, and the sealing performance of the hydrogen leakage early warning device is ensured again on the basis of the sealing gasket 14 of the connecting plate 10 and the sealing ring 15 of the inner sleeve 9, so that the leaked hydrogen cannot contact with air; the two sealing structures can prevent the solid hydrogen storage material 11 of the hydrogen absorption cavity from contacting with hydrogen in the air, so that the hydrogen absorption cavity has the advantage of long service life;
during the use, the first protective housing 2 that will be equipped with first early warning mechanism 5 and the direct cover of second protective housing 13 that is equipped with second early warning mechanism 6 are established on hydrogen pipeline 1, reuse fastening bolt 19 with first protective housing 2 and second protective housing 13 fixed connection get up to accomplish the installation to hydrogen leakage early warning device, when dismantling the maintenance, also as long as will spin off fastening bolt 19, alright open with hydrogen leakage early warning device, maintain its leakage point.
The working principle of the invention is as follows: when hydrogen leakage occurs at the joint of the connecting sleeve 12 and the hydrogen pipeline 1, the hydrogen detector 4 firstly detects a hydrogen leakage signal and transmits the signal to the alarm 3 and the electromagnetic valve on the hydrogen pipeline, the alarm 3 sends out an alarm signal, a driver and other workers timely perform flameout, overhaul and other works, the electromagnetic valve cuts off gas circulation on the hydrogen pipeline, and meanwhile, the leaked hydrogen enters the first early warning mechanism 5 and the second early warning mechanism 6 for processing; when leakage occurs, hydrogen enters the hydrogen absorption cavity from the through holes 17 on the inner sleeve 9, the solid hydrogen storage material 11 in the hydrogen absorption cavity absorbs the leaked hydrogen, the inner sleeve 9 is tightly sleeved on the connecting sleeve 12 through the sealing ring 15, and the sealing layer 20 is arranged on the connecting lug 18, so that the hydrogen can be effectively prevented from leaking to the external environment.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. A hydrogen leakage early warning device for a hydrogen fuel cell passenger car comprises a hydrogen leakage early warning device, and is characterized in that a first early warning mechanism (5) is arranged in a first protective shell (2) of the hydrogen leakage early warning device, and a second early warning mechanism (6) is arranged in a second protective shell (13) of the hydrogen leakage early warning device;
the inner sleeves (9) of the first protective shell (2) and the second protective shell (13) are arranged on the outer sleeve (8) through a connecting plate (10); a hydrogen absorption cavity is arranged between the inner sleeve (9) and the outer sleeve (8), and the inner wall of the hydrogen absorption cavity is provided with a solid hydrogen storage material (11);
the inner wall of the outer sleeve (8) is provided with a hydrogen detector (4), and the hydrogen detector (4) is respectively in communication connection with the alarm (3) and the electromagnetic valve on the hydrogen pipeline.
2. The hydrogen leakage early warning device for the hydrogen fuel cell passenger car according to claim 1, wherein the first protective housing (2) and the second protective housing (13) are both rectangular structures, the first protective housing (2) is located above the hydrogen pipeline (1), and the second protective housing (13) is located below the hydrogen pipeline (1).
3. The hydrogen gas leakage warning device for a hydrogen fuel cell passenger car according to claim 1, wherein the first warning mechanism (5) and the second warning mechanism (6) are identical in structure.
4. The hydrogen leakage early warning device for the hydrogen fuel cell passenger car according to claim 2, wherein the inner walls of the first protective housing (2) and the second protective housing (13) are respectively connected with the outer sleeve (8) through a support rod (7).
5. The hydrogen leakage early warning device for the hydrogen fuel cell passenger car as claimed in claim 4, wherein the middle of the outer sleeve (8) is provided with a groove matched with the inner sleeve (9), the inner sleeve (9) is installed in the groove of the outer sleeve (8), the middle of the inner sleeve (9) is provided with an annular groove (16) matched with the connecting sleeve (12), and through holes (17) are uniformly formed in the annular groove (16).
6. The hydrogen gas leakage warning device for the hydrogen fuel cell passenger car as claimed in claim 5, wherein the connecting plate (10) is provided with a sealing gasket (14), and the inner sleeve (9) is provided with a sealing ring (15).
7. The hydrogen leakage early warning device for the hydrogen fuel cell passenger car according to claim 2, wherein the bottom of the first protective housing (2) and the top of the second protective housing (13) are respectively provided with a connecting lug (18), the semicircular structure of the connecting lug (18) is matched with the hydrogen pipeline (1), and the two connecting lugs (18) are connected with each other through a fastening bolt (19).
8. The hydrogen leakage warning device for the hydrogen fuel cell passenger car as claimed in claim 7, wherein the middle of the engaging lug (18) is of a semicircular structure, and both sides of the engaging lug (18) are of a horizontal structure.
9. A hydrogen gas leakage warning device for a hydrogen fuel cell passenger car according to claim 8, wherein the engaging lug (18) is provided with a sealing layer (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111413601.1A CN114110442A (en) | 2021-11-25 | 2021-11-25 | Hydrogen leakage early warning device for hydrogen fuel cell passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111413601.1A CN114110442A (en) | 2021-11-25 | 2021-11-25 | Hydrogen leakage early warning device for hydrogen fuel cell passenger car |
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| Publication Number | Publication Date |
|---|---|
| CN114110442A true CN114110442A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111413601.1A Pending CN114110442A (en) | 2021-11-25 | 2021-11-25 | Hydrogen leakage early warning device for hydrogen fuel cell passenger car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962988A (en) * | 2022-06-07 | 2022-08-30 | 深圳康纳未来机器人有限公司 | Hydrogen filling equipment capable of detecting hydrogen leakage |
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| CN114962988B (en) * | 2022-06-07 | 2024-01-26 | 深圳康纳未来机器人有限公司 | Hydrogen filling equipment capable of detecting hydrogen leakage |
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