CN110953477A - Special-shaped honeycomb type hydrogen high-pressure storage and transportation device and manufacturing method thereof - Google Patents
Special-shaped honeycomb type hydrogen high-pressure storage and transportation device and manufacturing method thereof Download PDFInfo
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- CN110953477A CN110953477A CN201911207731.2A CN201911207731A CN110953477A CN 110953477 A CN110953477 A CN 110953477A CN 201911207731 A CN201911207731 A CN 201911207731A CN 110953477 A CN110953477 A CN 110953477A
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- inner cavity
- gas storage
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- 238000003860 storage Methods 0.000 title claims abstract description 57
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 43
- 239000001257 hydrogen Substances 0.000 title claims abstract description 43
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000007789 gas Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 5
- 238000010146 3D printing Methods 0.000 claims description 3
- 238000003486 chemical etching Methods 0.000 claims description 3
- 238000010147 laser engraving Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 7
- 239000004917 carbon fiber Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- 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
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0147—Shape complex
- F17C2201/0161—Honeycomb
-
- 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
-
- 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 device comprises an air storage structure, wherein the air storage structure comprises an outer shell, the outer shell surrounds to form an inner cavity, truss ribs which are connected in a staggered mode are formed in the inner cavity, the truss ribs divide the inner cavity into a plurality of independent cavities, and the independent cavities are at least communicated with one independent cavity adjacent to the independent cavity. Under the condition of the same volume and hydrogen storage quality, the weight of the gas storage tank is only 30-40% of that of the traditional metal gas storage tank, and the cost of the gas storage tank is only 60% of that of the gas storage tank wound by all carbon fibers.
Description
Technical Field
The application relates to a hydrogen high-pressure storage and transportation structural unit, in particular to a special-shaped honeycomb type hydrogen high-pressure storage and transportation device and a manufacturing method thereof.
Background
In 2019, the hydrogen energy industry forms the main industry clusters of Jingjin Ji, Changtriangle, Zhu triangle and the like which are widely centered in the north. Now it has entered the demonstration stage of industrial scale and will explore the commercial operation in the future.
The fundamental problem of hydrogen energy development at the present stage is that the storage and transportation links are developed and lagged. The hydrogen volume energy density is extremely low, the hydrogen is extremely easy to explode, the hydrogen dispersed in various places is efficiently distributed to the hydrogen filling station, and the distributed use (such as hydrogen energy automobiles, distributed hydrogen energy power supply and the like) is ensured to be safe and reliable, so that the improvement of the storage and transportation efficiency and the hydrogen quality are important bottlenecks in the large-scale development of the hydrogen energy industry, and the safe, efficient and cheap hydrogen storage and transportation technology becomes the key for realizing the commercial application of the hydrogen energy.
The high-pressure gaseous hydrogen storage tank is a mainstream mobile hydrogen storage and transportation device in the industry at present, a passenger vehicle-mounted hydrogen storage tank generally stores about 6kg of high-pressure hydrogen, the driving mileage (600 km) is ensured, the volume and the weight of the hydrogen storage tank are about 240L and 130kg respectively, the foreign hydrogen storage pressure is 70MPa, the domestic pressure is 35MPa, metal materials are mostly adopted, the efficiency is low, the volume is huge, the weight is remarkable, the cost is extremely high, and the high-pressure gaseous hydrogen storage tank can only be used for large vehicles such as buses and trucks. The foreign hydrogen storage tank generally adopts a structure that a metal inner container is wound by carbon fibers, the cost of the high-pressure hydrogen storage tank of the passenger vehicle is estimated to be 5-6 ten thousand yuan, and the cost of the carbon fiber material is about 60-70%. Japan is the largest carbon fiber export country in the world, the global market share exceeds 95 percent, and the Japanese hydrogen fuel cell vehicle has cost advantage. Under the condition of strongly depending on carbon fiber import, the cost of the high-pressure hydrogen storage device in China is always high, and the development of the high-pressure storage and transportation device and the manufacturing technology becomes a key technology for restricting the popularization and the range application of hydrogen energy in China.
Disclosure of Invention
The invention aims to provide a special-shaped honeycomb type hydrogen high-pressure storage and transportation device and a manufacturing method thereof, which are used for realizing high-pressure storage and transportation of hydrogen.
In order to achieve the above object, the present invention provides the following technical solutions.
The embodiment of the application discloses special-shaped honeycomb type hydrogen high-pressure storage and transportation device, which comprises a gas storage structure, wherein the gas storage structure comprises an outer shell, the outer shell surrounds to form an inner cavity, truss ribs which are connected in a staggered mode are formed in the inner cavity, the truss ribs divide the inner cavity into a plurality of independent chambers, and the independent chambers are at least communicated with one independent chamber adjacent to the independent chambers.
Correspondingly, the manufacturing method of the special-shaped honeycomb type hydrogen high-pressure storage and transportation device is also disclosed, and the manufacturing method sequentially comprises the following steps:
s1 determining the outer shell shape;
s2, designing the shape of the truss rib by adopting software;
s3, performing equal-thickness or non-equal-thickness layering by adopting 3D printing and subdividing software, and arranging at least three groups of positioning devices;
s4, processing layer by laser engraving, precision milling or chemical etching;
s5 stacking, assembling and positioning in sequence according to the digital-analog sequence;
s6 adopting diffusion welding equipment at vacuum degree of 5 × 10-4Carrying out primary welding forming under the conditions of Pa, pressure of 6MPa, temperature of 460-520 ℃ and heat preservation and pressure maintaining for 2 hours, cooling to 200 ℃ along with the furnace, taking out and naturally cooling to room temperature;
and S7 welding the end socket structures at the two sides of the outer shell to connect the inflation inlet and the air outlet.
Preferably, in the above method for manufacturing the profiled honeycomb type hydrogen high-pressure storage and transportation device, in step S3, the number of the layered layers is determined by the number of the horizontal planes where the independent chambers are located.
Preferably, in the above method for manufacturing the profiled honeycomb type high-pressure hydrogen storage and transportation device, in step S7, the end enclosure structure is provided with a pressure sensor and a temperature sensor.
Compared with the prior art, the invention breaks through the design concept of the circular cavity section of the traditional gas storage tank, provides a multi-chamber high-pressure gas storage structure with a complex inner chamber, the structure is characterized in that the structure is similar to a honeycomb, has an independent or communicated multi-chamber structure, is made of high-strength aluminum alloy, can meet the pressure requirement of compressed hydrogen only depending on the strength of a material body, does not need to use a high-cost carbon fiber winding technology, has the pressure bearing capacity derived from truss ribs and high-strength shells which are connected in a criss-cross way in the inner chamber, does not depend on the strength of the shells in the traditional gas storage tank, effectively shares the internal pressure borne by the shells through numerical simulation analysis, can design the volume and the distribution of the cavities according to the pressure bearing range, can ensure that the design pressure is continuously adjustable within the yield limit range of the material body by adjusting the proportion, the weight of the gas storage tank is only 30-40% of that of the traditional metal gas storage tank, and the cost of the gas storage tank is only 60% of that of the gas storage tank wound by all carbon fibers.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a sectional view of a profiled honeycomb type hydrogen high-pressure storage and transportation device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail 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 embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the irregular honeycomb type high-pressure hydrogen storage and transportation device comprises a gas storage structure, wherein the gas storage structure comprises an outer shell 100, the outer shell 100 surrounds to form an inner cavity, truss ribs 200 which are connected in a staggered manner are formed in the inner cavity, the truss ribs 200 divide the inner cavity into a plurality of independent chambers 300, and the independent chambers 300 are at least communicated with one independent chamber 300 adjacent to the independent chamber 300.
In the technical scheme, the appearance is designed according to the use environment, the mode and the like, the high-pressure gas storage device is not limited to the circular appearance shown in the drawing, and can be designed into any other special-shaped shape, so that the high-pressure gas storage device is convenient to assemble and fix in practical use, the space utilization rate is improved, the material is determined according to the service environment state after the appearance is determined, the yield limit value of the body material is obtained, numerical simulation and stress analysis are carried out according to the requirements of pressure, gas storage (quality) space and the like, an independent or communicated multi-chamber internal structure is designed, and finally structural strength checking. The complex inner cavity structure is difficult to realize by adopting a traditional material reducing processing method, and aiming at the structural characteristics, the invention adopts an additive manufacturing method, namely a diffusion welding layered entity manufacturing method to process and manufacture the complex inner cavity structure of the invention, but the invention is not limited to the manufacturing method, other technologies such as a laser selective melting technology can also be realized, but the efficiency is lower than that of the diffusion welding layered entity manufacturing method, and the cost is high.
The manufacturing method of the special-shaped honeycomb type hydrogen high-pressure storage and transportation device sequentially comprises the following steps:
s1 determining the shape of the outer case 100;
s2, designing the shape of the truss rib 200 by adopting software;
s3, 3D printing subdivision software is adopted to carry out equal-thickness or non-equal-thickness layering, the number of layering layers is determined by the number of horizontal planes where the independent chambers 300 are located, and at least three groups of positioning devices are arranged;
s4, processing layer by laser engraving, precision milling or chemical etching;
s5 stacking, assembling and positioning in sequence according to the digital-analog sequence;
s6 adopting diffusion welding equipment at vacuum degree of 5 × 10-4Carrying out primary welding forming under the conditions of Pa, pressure of 6MPa, temperature of 460-520 ℃ and heat preservation and pressure maintaining for 2 hours, cooling to 200 ℃ along with the furnace, taking out and naturally cooling to room temperature;
s7 welding end enclosure structures at two sides of the outer shell 100 to connect the inflation inlet and the air outlet, wherein the end enclosure structures are provided with pressure sensors and temperature sensors.
Compared with the prior art, the invention has the advantages that the inner cavity multi-chamber honeycomb structure effectively separates the inner cavity of the gas storage tank and is integrally connected with the outer wall, the stress mode that the traditional gas storage tank only depends on the strength of the outer wall to bear the internal pressure is changed, the ribs on the wall surface of the cavity which is criss-cross in the inner part have the functions of strengthening the outer wall and dividing the pressure, the pressure bearing capacity of the structure can be close to the yield limit of a solid material according to the volume ratio of the cavity and the solid part, the pressure resistance of the gas storage tank is obviously improved, the gas storage tank is particularly suitable for hydrogen storage and transportation with higher design pressure, the structure is not limited by the appearance due to the technical idea of material increase manufacturing, the gas storage tank can be designed into a special-shaped structure, is particularly suitable for hydrogen energy vehicles.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (4)
1. The special-shaped honeycomb type high-pressure hydrogen storage and transportation device is characterized by comprising a gas storage structure, wherein the gas storage structure comprises an outer shell, the outer shell surrounds to form an inner cavity, truss ribs which are connected in a staggered mode are formed in the inner cavity, the truss ribs divide the inner cavity into a plurality of independent chambers, and the independent chambers are at least communicated with one independent chamber adjacent to the independent chambers.
2. The method for manufacturing the special-shaped honeycomb type hydrogen high-pressure storage and transportation device according to claim 1, which sequentially comprises the following steps:
s1 determining the outer shell shape;
s2, designing the shape of the truss rib by adopting software;
s3, performing equal-thickness or non-equal-thickness layering by adopting 3D printing and subdividing software, and arranging at least three groups of positioning devices;
s4, processing layer by laser engraving, precision milling or chemical etching;
s5 stacking, assembling and positioning in sequence according to the digital-analog sequence;
s6 adopting diffusion welding equipment at vacuum degree of 5 × 10-4Carrying out primary welding forming under the conditions of Pa, pressure of 6MPa, temperature of 460-520 ℃ and heat preservation and pressure maintaining for 2 hours, cooling to 200 ℃ along with the furnace, taking out and naturally cooling to room temperature;
and S7 welding the end socket structures at the two sides of the outer shell to connect the inflation inlet and the air outlet.
3. The method of claim 2, wherein in step S3, the number of layers is determined by the number of levels of the independent chambers.
4. The method of claim 2, wherein in step S7, the sealing structure is provided with a pressure sensor and a temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911207731.2A CN110953477B (en) | 2019-11-29 | 2019-11-29 | Special-shaped honeycomb type hydrogen high-pressure storage and transportation device and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911207731.2A CN110953477B (en) | 2019-11-29 | 2019-11-29 | Special-shaped honeycomb type hydrogen high-pressure storage and transportation device and manufacturing method thereof |
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| CN110953477A true CN110953477A (en) | 2020-04-03 |
| CN110953477B CN110953477B (en) | 2024-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041488A1 (en) * | 2020-08-28 | 2022-03-03 | 上海市洁能科技有限公司 | Material composition for use in hydrogen storage structure, material for use in hydrogen storage structure, and hydrogen storage single tube |
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| CN110953477B (en) | 2024-03-08 |
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