CN211289565U - Hydrogenation device of vehicle-mounted hydrogen storage system - Google Patents
Hydrogenation device of vehicle-mounted hydrogen storage system Download PDFInfo
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- CN211289565U CN211289565U CN201922248870.1U CN201922248870U CN211289565U CN 211289565 U CN211289565 U CN 211289565U CN 201922248870 U CN201922248870 U CN 201922248870U CN 211289565 U CN211289565 U CN 211289565U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The utility model relates to a hydrogenation device of a vehicle-mounted hydrogen storage system, which comprises a preposed gas distributor, a primary pressure reducing mechanism and a secondary pressure reducing mechanism, wherein the primary pressure reducing mechanism and the secondary pressure reducing mechanism are internally provided with pressure reducing structures, and the pressure reducing structures are piston type pressure reducing valves; the prepositive gas distributor is arranged in the first-stage pressure reducing mechanism and comprises a hydrogen inlet, a first outlet and a second outlet, wherein the first outlet and the second outlet are communicated with the hydrogen inlet; the first outlet is connected with a vehicle-mounted hydrogen storage cylinder, the second outlet is connected with an inlet of the second-stage pressure reducing mechanism, and a pressure reducing structure is arranged in a channel of the second outlet; the second-stage pressure reducing mechanism is provided with a hydrogen outlet, a pressure sensor mounting port and a hydrogen discharge port which are communicated with an inlet channel of the second-stage pressure reducing mechanism; a pressure reducing structure is arranged in the inlet channel, the hydrogen outlet is connected with the fuel cell end, and a pressure sensor is arranged in the pressure sensor mounting hole; the hydrogen discharge port is connected with the safety discharge structure. Compared with the prior art, the utility model has the advantages of compact structure, safe in utilization, with low costs.
Description
Technical Field
The utility model relates to a hydrogenation unit especially relates to a hydrogenation unit of on-vehicle hydrogen storage system.
Background
With the increasing expansion of the hydrogen energy industry, the selectivity of a large number of parts related to hydrogen media is greatly increased while the hydrogen energy is developed in a large scale, but the safety of the hydrogen is ensured to be an inevitable factor when the hydrogen is used as a flammable and explosive substance. Chinese patent CN 208014810U discloses various vehicle-mounted hydrogen systems, which include a hydrogen storage cylinder system, a hydrogenation pipeline, a hydrogen supply pipeline and an evacuation pipeline, wherein the hydrogen storage cylinder system is respectively connected with the hydrogenation pipeline, the hydrogen supply pipeline and the evacuation pipeline; the emptying pipeline comprises a high-pressure emptying needle valve and a collecting pipeline, and the collecting pipeline is connected to the emptying pipeline through a valve; the hydrogen supply system comprises a plurality of hydrogen pipelines and connecting interfaces of the pipelines, and the pipelines and the connecting interfaces are easy to become hydrogen leakage points, thereby bringing greater potential safety hazards to the system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydrogenation device of a vehicle-mounted hydrogen storage system for overcoming the defect that hydrogen is easy to leak in the prior art.
The purpose of the utility model can be realized through the following technical scheme:
a hydrogenation device of a vehicle-mounted hydrogen storage system comprises a preposed gas distributor, a primary pressure reducing mechanism and a secondary pressure reducing mechanism; the first-stage pressure reducing mechanism and the second-stage pressure reducing mechanism are internally provided with pressure reducing structures which are piston type pressure reducing valves;
the preposed gas distributor is arranged in the first-stage pressure reducing mechanism and comprises a hydrogen inlet, a first outlet and a second outlet, wherein the first outlet and the second outlet are communicated with the hydrogen inlet; the first outlet is connected with a vehicle-mounted hydrogen storage cylinder, the second outlet is connected with an inlet of the second-stage pressure reducing mechanism, and a pressure reducing structure is arranged in a channel of the second outlet;
the second-stage pressure reducing mechanism is provided with a hydrogen outlet, a pressure sensor mounting port and a hydrogen discharge port which are communicated with an inlet of the second-stage pressure reducing mechanism; the hydrogen outlet is connected with the fuel cell end, and a pressure sensor is arranged in the pressure sensor mounting hole; the hydrogen discharge port is connected with the safety discharge structure.
The first-stage pressure reducing mechanism and the second-stage pressure reducing mechanism are provided with pressure reducing cavities, piston type pressure reducing valve cores are arranged in the pressure reducing cavities to form pressure reducing structures, and the piston type pressure reducing valve cores and the pressure reducing cavities are sealed through double sealing rings.
The safety relief structure is a safety relief valve.
And the primary pressure reducing mechanism is also provided with a manual emptying structure communicated with the front gas distributor.
The manual emptying structure is a manual emptying valve.
And a filter is arranged at the hydrogen inlet of the preposed gas distributor.
And a hydrogen inlet of the preposed gas distributor is provided with a one-way valve.
The first-stage pressure reducing mechanism and the second-stage pressure reducing mechanism are arranged in an L shape.
The utility model discloses a theory of operation does:
when the utility model discloses install the back on the fuel cell car, on hydrogen filling device was connected to this product through on-vehicle filler, high-pressure hydrogen passed through filter, leading gas distributor and supplied with high-pressure gas to the fuel cell end through the second export all the way, and all the way is supplied with to on-vehicle hydrogen storage bottle end through first export.
When the fuel cell car normally uses, by high-pressure hydrogen storage cylinder gassing extremely the utility model discloses, then pass through the utility model discloses supply with to the fuel cell end, specifically, high-pressure hydrogen comes out from high-pressure hydrogen storage cylinder, gets into one-level decompression mechanism, stable back through one-level decompression gets high-pressure gas and reachs second grade decompression mechanism, reachs to set pressure after carry to fuel cell through the hydrogen export. And the manual emptying structure is used for emptying hydrogen conveniently and conveniently when a vehicle-mounted hydrogen storage system is maintained.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the hydrogenation device of the utility model integrates the vehicle-mounted hydrogen storage system filter, the pressure regulating valve, the safety relief valve, the preposed gas distributor, the pressure sensor and the manual maintenance emptying valve component, and reduces the use of pipelines in the installation and use process, thereby reducing the potential danger of hydrogen leakage and improving the safety of the system;
(2) the system has the characteristic of high integration, is convenient for the installation and maintenance of the vehicle-mounted hydrogen storage system, and reduces the cost of the vehicle-mounted hydrogen storage system;
(3) by adopting the piston type pressure reducing structure, the stability of output pressure is improved on the premise of ensuring the integral structure of the integrated valve, and meanwhile, the input requirement of a high-power galvanic pile is met.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
fig. 2 is a schematic diagram of the right-side view structure of the present invention;
in the figure, 1 is a front-mounted gas distributor, 2 is a hydrogen outlet, 3 is a first-stage pressure reducing mechanism, 4 is a second-stage pressure reducing mechanism, 5 is a safety relief structure, 6 is a pressure sensor, and 7 is a manual relief structure.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Examples
A hydrogenation device of a vehicle-mounted hydrogen storage system is shown in figures 1 and 2 and comprises a preposed gas distributor 1, a primary pressure reducing mechanism 3 and a secondary pressure reducing mechanism 4, wherein the primary pressure reducing mechanism 3 and the secondary pressure reducing mechanism 4 are arranged in an L shape; the preposed gas distributor 1 is arranged in the one-stage pressure reducing mechanism and comprises a hydrogen inlet (the back of the structure shown in figure 1, which is not shown in figure 1) and a first outlet (the first outlet is a downward pipe orifice shown in figure 1) and a second outlet which are communicated with the hydrogen inlet; a filter and a one-way valve are arranged at the hydrogen inlet along the hydrogen inlet direction; the first outlet is connected with a vehicle-mounted hydrogen storage cylinder, the second outlet is connected with an inlet of the second-stage pressure reducing mechanism 4, and a pressure reducing structure is arranged in a channel of the second outlet; the second-stage pressure reducing mechanism 4 is provided with a hydrogen outlet 2, a pressure sensor 6 mounting port and a hydrogen discharge port which are communicated with an inlet channel of the second-stage pressure reducing mechanism 4; a pressure reducing structure is arranged in the inlet channel, the hydrogen outlet 2 is connected with the fuel cell end, and a pressure sensor 6 is arranged in a mounting hole of the pressure sensor 6; the hydrogen gas release port is connected with the safety release structure 5. Wherein, the built-in piston relief pressure valve that has as decompression structure of one-level relief pressure mechanism and second grade relief pressure mechanism, one-level relief pressure mechanism 3 and second grade relief pressure mechanism 4 all are equipped with the decompression chamber, and the piston relief pressure valve core is placed in the decompression intracavity portion and is constituted foretell decompression structure, and piston relief pressure valve core and decompression chamber seal through the double seal ring and guarantee that gas can not take place to leak. The safety relief structure 5 is a safety relief valve; and the first-stage pressure reducing mechanism 3 is also provided with a manual emptying structure 7 communicated with the front gas distributor 1, and the manual emptying structure 7 is a manual emptying valve.
The working principle of the hydrogenation device in the embodiment is as follows:
when the utility model discloses install the back on the fuel cell car, on hydrogen filling device was connected to this product through on-vehicle filler, high-pressure hydrogen passed through filter, leading gas distributor 1 and supplied with high-pressure gas to the fuel cell end through the second export all the way, and all the way is supplied with to on-vehicle hydrogen storage bottle end through first export.
When the fuel cell car normally uses, by high-pressure hydrogen storage cylinder gassing extremely the utility model discloses, then pass through the utility model discloses supply with to the fuel cell end, specifically, high-pressure hydrogen comes out from high-pressure hydrogen storage cylinder, gets into one-level decompression mechanism 3, stable back through the one-level decompression gets high-pressure gas and reachs second grade decompression mechanism 4, reachs and carries to fuel cell through hydrogen export 2 after setting for pressure. And after the secondary decompression mechanism 4, the safety relief structures 5 are respectively installed for ensuring that the fuel reaches a fixed value and ensuring that the gas is not overpressurized and the fuel cell is prevented from being damaged, the pressure sensor 6 is used for monitoring the real-time output pressure and feeding the real-time output pressure back to the control end for control, and the manual emptying structure is used for conveniently emptying hydrogen when the vehicle-mounted hydrogen storage system is maintained.
The device of this embodiment has integrateed on-vehicle hydrogen storage system filter, pressure regulating valve, safe bleeder valve, leading gas distributor, pressure sensor and manual maintenance atmospheric valve subassembly, has reduced the use of pipeline in the installation use to it leaks to reduce probably to produce hydrogen and gets hidden danger and exist. In addition, the product is highly integrated, so that the installation and maintenance of the vehicle-mounted hydrogen storage system are convenient, and the cost of the vehicle-mounted hydrogen storage system is reduced.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (8)
1. A hydrogenation device of a vehicle-mounted hydrogen storage system is characterized by comprising a preposed gas distributor (1), a primary pressure reducing mechanism (3) and a secondary pressure reducing mechanism (4); the first-stage pressure reducing mechanism (3) and the second-stage pressure reducing mechanism (4) are internally provided with pressure reducing structures which are piston type pressure reducing valves;
the preposed gas distributor (1) is arranged in the first-stage pressure reducing mechanism and comprises a hydrogen inlet, a first outlet and a second outlet, wherein the first outlet and the second outlet are communicated with the hydrogen inlet; the first outlet is connected with a vehicle-mounted hydrogen storage cylinder, the second outlet is connected with an inlet of the second-stage pressure reducing mechanism (4), and a pressure reducing structure is arranged in a channel of the second outlet;
the secondary pressure reducing mechanism (4) is provided with a hydrogen outlet (2) communicated with an inlet of the secondary pressure reducing mechanism (4), a pressure sensor (6) mounting port and a hydrogen discharge port; the hydrogen outlet (2) is connected with the fuel cell end, and a pressure sensor (6) is arranged in the mounting hole of the pressure sensor (6); the hydrogen discharge port is connected with the safety discharge structure (5).
2. The hydrogenation device of a vehicle-mounted hydrogen storage system according to claim 1, wherein the primary pressure reduction mechanism and the secondary pressure reduction mechanism are provided with pressure reduction chambers, piston type pressure reduction valve cores are arranged in the pressure reduction chambers to form pressure reduction structures, and the piston type pressure reduction valve cores and the pressure reduction chambers are sealed by double sealing rings.
3. The hydrogenation apparatus of an on-vehicle hydrogen storage system according to claim 1, wherein the safety relief structure (5) is a safety relief valve.
4. The hydrogenation device of a vehicle-mounted hydrogen storage system according to claim 1, wherein the primary pressure reducing mechanism (3) is further provided with a manual emptying structure (7) communicated with the pre-gas distributor (1).
5. The hydrogenation device of an on-vehicle hydrogen storage system according to claim 4, wherein the manual emptying structure (7) is a manual emptying valve.
6. The hydrogenation device of an on-board hydrogen storage system according to claim 1, wherein the hydrogen gas inlet of the pre-gas distributor (1) is provided with a filter.
7. The hydrogenation device of an on-board hydrogen storage system according to claim 1, wherein the hydrogen inlet of the pre-gas distributor (1) is provided with a one-way valve.
8. The hydrogenation apparatus of a vehicle-mounted hydrogen storage system according to claim 1, wherein the primary pressure reducing mechanism (3) and the secondary pressure reducing mechanism (4) are arranged in an L-shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248870.1U CN211289565U (en) | 2019-12-14 | 2019-12-14 | Hydrogenation device of vehicle-mounted hydrogen storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248870.1U CN211289565U (en) | 2019-12-14 | 2019-12-14 | Hydrogenation device of vehicle-mounted hydrogen storage system |
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| Publication Number | Publication Date |
|---|---|
| CN211289565U true CN211289565U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922248870.1U Active CN211289565U (en) | 2019-12-14 | 2019-12-14 | Hydrogenation device of vehicle-mounted hydrogen storage system |
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| CN (1) | CN211289565U (en) |
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2019
- 2019-12-14 CN CN201922248870.1U patent/CN211289565U/en active Active
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