CN114368171A - Preparation method of high-pressure gas storage tank without inner container - Google Patents
Preparation method of high-pressure gas storage tank without inner container Download PDFInfo
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- CN114368171A CN114368171A CN202210279265.4A CN202210279265A CN114368171A CN 114368171 A CN114368171 A CN 114368171A CN 202210279265 A CN202210279265 A CN 202210279265A CN 114368171 A CN114368171 A CN 114368171A
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- inner container
- storage tank
- carbon fiber
- gas storage
- pressure gas
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/386—Automated tape laying [ATL]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/58—Applying the releasing agents
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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
- F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
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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
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/0663—Synthetics in form of fibers or filaments
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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
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/21—Shaping processes
- F17C2209/2154—Winding
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention relates to a preparation method of a high-pressure gas storage tank without an inner container, which comprises the following steps: manufacturing a removable inner container; coating release liquid which is easy to demould on the outer surface of the inner container, and then winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by the design, wherein the winding of the carbon fiber unidirectional tape needs to be carried out under the condition of heating; the high-pressure gas storage tank prepared by the method reduces the weight by more than 20%, increases the storage capacity by 10% of the cavity volume, has lower cost and higher production efficiency, adopts a continuous carbon fiber thermoplastic unidirectional tape, is environment-friendly and recyclable, adopts an instant winding and instant heating curing process, greatly improves the production efficiency, and can be used for storing hydrogen gas of more than 70 MPa.
Description
Technical Field
The invention belongs to the technical field of high-pressure gas storage tanks, and particularly relates to a preparation method of a high-pressure gas storage tank without an inner container.
Background
A high-pressure gas storage tank, a metal tank for storing gas fuel. The gas storage pressure is 15-35 MPa or even higher, the volume in the tank is fixed, the storage capacity is adjusted according to the storage pressure, the storage capacity is cylindrical or spherical, and a spherical tank is generally adopted when the storage capacity is large.
The high-pressure gas storage tank disclosed in the prior art is an IIV type aluminum alloy inner container and an IV type HDPE inner container, the hydrogen storage density of the high-pressure gaseous hydrogen storage tank is severely limited by the pressure, the hydrogen storage pressure must be increased to increase the hydrogen density, and the requirements on the size, weight, safety and storage cost of the container are high. The high-pressure gas storage tank in the prior art is provided with the inner container, so that the weight of the gas storage tank is increased, the storage capacity is reduced, the production cost is high, the production efficiency is low, and the like.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a preparation method of a high-pressure gas storage tank without an inner container, the gas storage tank prepared by the method reduces the weight by more than 20%, the volume of a cavity is increased by 10%, the cost is low, the production efficiency is high, and the gas storage tank is used for storing hydrogen gas with the pressure of more than 70 MPa.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a high-pressure gas storage tank without an inner container comprises the following steps:
(1) manufacturing a removable inner container;
(2) coating release liquid which is easy to demould on the outer surface of the inner container, and then winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by the design, wherein the winding of the carbon fiber unidirectional tape needs to be carried out under the heating condition, and the carbon fiber unidirectional tape is wound and heated at the same time;
(3) and removing the inner container to obtain the high-pressure gas storage tank without the inner container.
Further, the removable inner container in the step (1) is an inner container made of a high polymer material, an inner container made of 3D printing or an inner container with a deformable skeleton.
Further, the high polymer material is expanded polystyrene.
The inner container can also be manufactured by adopting a 3D printing technology, a 3D printed sand core inner container model is adopted to fill the volume of the inner container to be used as a framework support for winding the carbon fiber unidirectional tape, and after the inner container is completely wound and formed, sand is dissolved in the sand core model to be removed.
Furthermore, the inner container with the deformable framework is of an eight-claw supporting structure.
Furthermore, the eight-claw supporting structure is made of metal or engineering plastics.
The eight-claw support structure is used as a framework support for winding the carbon fiber unidirectional tape, after the carbon fiber unidirectional tape is completely wound, the inner container with a deformable framework is taken out, and the eight-claw support structure can be taken out from an opening of the air storage tank in a reduced volume.
Further, the release solution in the step (2) is an acrylic acid synthetic resin polymer.
The release liquid is coated on the outer surface of the liner, so that subsequent demolding of the carbon fiber is facilitated.
Further, the heating temperature in the step (2) is 300-.
Further, the thermoplastic carbon fiber unidirectional tape in the step (2) is wound in a positive and negative 45-degree winding mode.
The thermoplastic carbon fiber unidirectional tape on the outer surface of the inner container is wound at a positive and negative 45-degree angle by a robot programmed manipulator, and the carbon fiber unidirectional tape is continuously heated and solidified by an instant heating device while being wound.
Further, the inner container made of the polymer material in the step (3) is removed by a combustion and dissolution method, the inner container made by 3D printing is removed by a dissolution method, and the inner container with a deformable framework is taken out by structural deformation.
Further, the combustion dissolution method comprises the steps of firstly heating at 100-150 ℃ for 25-35min, and then adding acetone for dissolution, wherein the dissolution method is acetone dissolution.
The liner made of the high polymer material is taken out by a combustion and dissolution method, and the method comprises the following specific steps: after the carbon fiber unidirectional tape is wound, heating at the temperature of 100-150 ℃ for 25-35min, melting and deforming the high polymer material at the moment, separating the high polymer material from the carbon fiber unidirectional tape, and putting the high polymer material into acetone at the moment, wherein the temperature is not far lower than the melting point of the carbon fiber, and the carbon fiber cannot deform, and the high polymer material is dissolved in the acetone and taken out to form the liner-free high-pressure air storage tank.
The inner container manufactured by 3D printing in the invention is removed by a dissolution method, which comprises the following steps: and after the carbon fiber unidirectional tape is wound, immersing the carbon fiber unidirectional tape into acetone, dissolving the sand core mold glue in the 3D printed sand core mold liner into the acetone, and taking out the sand core mold liner to obtain the liner-free high-pressure gas storage tank.
The liner with the deformable framework is taken out by adopting structural deformation, and the liner is specifically as follows: after the carbon fiber unidirectional tape is wound, the eight-claw supporting structure can be taken out from the opening of the gas storage tank in a reduced volume.
The chemical raw materials adopted in the invention are all commercial products.
Compared with the prior art, the invention has the beneficial effects that:
the high-pressure gas storage tank prepared by the method reduces the weight by more than 20%, increases the storage capacity by 10% of the cavity volume, has lower cost and higher production efficiency, adopts a continuous carbon fiber thermoplastic unidirectional tape, is environment-friendly and recyclable, adopts an instant winding and instant heating curing process, greatly improves the production efficiency, and is used for storing hydrogen gas of more than 70 MPa.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1
The preparation method of the high-pressure gas storage tank without the inner container comprises the following steps:
(1) preparing an inner container from expanded polystyrene;
(2) coating a layer of acrylic acid synthetic resin polymer on the outer surface of the liner to facilitate subsequent demolding of carbon fibers, winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by design after the acrylic acid synthetic resin polymer is coated, winding the thermoplastic carbon fiber unidirectional tape on the outer surface of the liner at a temperature of plus or minus 45 ℃ by a manipulator programmed by a robot, and continuously heating and curing the carbon fiber unidirectional tape by an instant heating device while winding, wherein the heating and curing temperature is 300 ℃;
(3) the liner is removed by adopting a combustion dissolution method, which comprises the following specific steps: after the carbon fiber unidirectional tape is wound, heating for 35min at 100 ℃, melting and deforming the high polymer material, separating from the carbon fiber unidirectional tape, putting the carbon fiber unidirectional tape into acetone, dissolving the high polymer material in the acetone, and taking out the high polymer material to obtain the liner-free high-pressure air storage tank.
Example 2
The preparation method of the high-pressure gas storage tank without the inner container comprises the following steps:
(1) preparing an inner container from expanded polystyrene;
(2) coating a layer of acrylic acid synthetic resin polymer on the outer surface of the liner to facilitate subsequent demolding of carbon fibers, winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by design after the acrylic acid synthetic resin polymer is coated, winding the thermoplastic carbon fiber unidirectional tape on the outer surface of the liner at a temperature of plus or minus 45 ℃ by a manipulator programmed by a robot, and continuously heating and curing the carbon fiber unidirectional tape by an instant heating device while winding, wherein the heating and curing temperature is 400 ℃;
(3) the liner is removed by adopting a combustion dissolution method, which comprises the following specific steps: after the carbon fiber unidirectional tape is wound, heating for 30min at 125 ℃, melting and deforming the high polymer material, separating from the carbon fiber unidirectional tape, putting the carbon fiber unidirectional tape into acetone, dissolving the high polymer material in the acetone, and taking out the high polymer material to obtain the liner-free high-pressure air storage tank. .
Example 3
The preparation method of the high-pressure gas storage tank without the inner container comprises the following steps:
(1) preparing an inner container from expanded polystyrene;
(2) coating a layer of acrylic acid synthetic resin polymer on the outer surface of the liner to facilitate subsequent demolding of carbon fibers, winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by design after the acrylic acid synthetic resin polymer is coated, winding the thermoplastic carbon fiber unidirectional tape on the outer surface of the liner at a temperature of 500 ℃ by adopting a positive and negative 45-degree winding manipulator programmed by a robot, and continuously heating and curing the carbon fiber unidirectional tape by an instant heating device while winding;
(3) the liner is removed by adopting a combustion dissolution method, which comprises the following specific steps: after the carbon fiber unidirectional tape is wound, heating at 150 ℃ for 25min, melting and deforming the high polymer material, separating the high polymer material from the carbon fiber unidirectional tape, putting the high polymer material into acetone, dissolving the high polymer material in the acetone, and taking out the high polymer material to obtain the liner-free high-pressure air storage tank.
Example 4
The preparation method of the high-pressure gas storage tank without the inner container comprises the following steps:
(1) the method comprises the following steps of (1) filling the volume of an inner container by adopting a 3D printed inner container, wherein the inner container is used as a framework support for winding a carbon fiber unidirectional tape;
(2) coating a layer of acrylic acid synthetic resin polymer on the outer surface of the liner to facilitate subsequent demolding of carbon fibers, winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by design after the acrylic acid synthetic resin polymer is coated, winding the thermoplastic carbon fiber unidirectional tape on the outer surface of the liner at a temperature of plus or minus 45 ℃ by a manipulator programmed by a robot, and continuously heating and curing the carbon fiber unidirectional tape by an instant heating device while winding, wherein the heating and curing temperature is 300 ℃;
(3) the inner container is removed by adopting a dissolving method, which comprises the following steps: and after the carbon fiber unidirectional tape is wound, immersing the carbon fiber unidirectional tape into acetone, dissolving the sand core mold glue in the 3D printed sand core mold liner into the acetone, and taking out the sand core mold liner to obtain the liner-free high-pressure gas storage tank.
Example 5
The preparation method of the high-pressure gas storage tank without the inner container comprises the following steps:
(1) the method comprises the following steps of (1) filling the volume of an inner container by adopting a 3D printed inner container, wherein the inner container is used as a framework support for winding a carbon fiber unidirectional tape;
(2) coating a layer of acrylic acid synthetic resin polymer on the outer surface of the liner to facilitate subsequent demolding of carbon fibers, winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by design after the acrylic acid synthetic resin polymer is coated, winding the thermoplastic carbon fiber unidirectional tape on the outer surface of the liner at a temperature of plus or minus 45 ℃ by a manipulator programmed by a robot, and continuously heating and curing the carbon fiber unidirectional tape by an instant heating device while winding, wherein the heating and curing temperature is 400 ℃;
(3) the inner container is removed by adopting a dissolving method, which comprises the following steps: and after the carbon fiber unidirectional tape is wound, immersing the carbon fiber unidirectional tape into acetone, dissolving the sand core mold glue in the 3D printed sand core mold liner into the acetone, and taking out the sand core mold liner to obtain the liner-free high-pressure gas storage tank.
Example 6
The preparation method of the high-pressure gas storage tank without the inner container comprises the following steps:
(1) the method comprises the following steps of (1) filling the volume of an inner container by adopting a 3D printed inner container, wherein the inner container is used as a framework support for winding a carbon fiber unidirectional tape;
(2) coating a layer of acrylic acid synthetic resin polymer on the outer surface of the liner to facilitate subsequent demolding of carbon fibers, winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by design after the acrylic acid synthetic resin polymer is coated, winding the thermoplastic carbon fiber unidirectional tape on the outer surface of the liner at a temperature of 500 ℃ by adopting a positive and negative 45-degree winding manipulator programmed by a robot, and continuously heating and curing the carbon fiber unidirectional tape by an instant heating device while winding;
(3) the inner container is removed by adopting a dissolving method, which comprises the following steps: and after the carbon fiber unidirectional tape is wound, immersing the carbon fiber unidirectional tape into acetone, dissolving the sand core mold glue in the 3D printed sand core mold liner into the acetone, and taking out the sand core mold liner to obtain the liner-free high-pressure gas storage tank.
Example 7
The preparation method of the high-pressure gas storage tank without the inner container comprises the following steps:
(1) the method comprises the following steps of manufacturing a skeleton-deformable inner container which is an eight-claw support structure made of engineering plastics, wherein the eight-claw support structure is used as a skeleton support for winding a carbon fiber unidirectional belt;
(2) coating a layer of acrylic acid synthetic resin polymer on the outer surface of the liner to facilitate subsequent demolding of carbon fibers, winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by design after the acrylic acid synthetic resin polymer is coated, winding the thermoplastic carbon fiber unidirectional tape on the outer surface of the liner at a temperature of plus or minus 45 ℃ by a manipulator programmed by a robot, and continuously heating and curing the carbon fiber unidirectional tape by an instant heating device while winding, wherein the heating and curing temperature is 300 ℃;
(3) and taking out the liner with the deformable skeleton, wherein the eight-claw support structure can reduce the volume and take out the liner from the opening of the gas storage tank, so as to obtain the liner-free high-pressure gas storage tank.
Example 8
The preparation method of the high-pressure gas storage tank without the inner container comprises the following steps:
(1) the method comprises the following steps of manufacturing a skeleton-deformable inner container which is an eight-claw support structure made of metal iron, wherein the eight-claw support structure is used as a skeleton support for winding a carbon fiber unidirectional belt;
(2) coating a layer of acrylic acid synthetic resin polymer on the outer surface of the liner to facilitate subsequent demolding of carbon fibers, winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by design after the acrylic acid synthetic resin polymer is coated, winding the thermoplastic carbon fiber unidirectional tape on the outer surface of the liner at a temperature of plus or minus 45 ℃ by a manipulator programmed by a robot, and continuously heating and curing the carbon fiber unidirectional tape by an instant heating device while winding, wherein the heating and curing temperature is 400 ℃;
(3) and taking out the liner with the deformable skeleton, wherein the eight-claw support structure can reduce the volume and take out the liner from the opening of the gas storage tank, so as to obtain the liner-free high-pressure gas storage tank.
Example 9
The preparation method of the high-pressure gas storage tank without the inner container comprises the following steps:
(1) the method comprises the following steps of manufacturing a skeleton-deformable inner container which is an eight-claw support structure made of engineering plastics, wherein the eight-claw support structure is used as a skeleton support for winding a carbon fiber unidirectional belt;
(2) coating a layer of acrylic acid synthetic resin polymer on the outer surface of the liner to facilitate subsequent demolding of carbon fibers, winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by design after the acrylic acid synthetic resin polymer is coated, winding the thermoplastic carbon fiber unidirectional tape on the outer surface of the liner at a temperature of 500 ℃ by adopting a positive and negative 45-degree winding manipulator programmed by a robot, and continuously heating and curing the carbon fiber unidirectional tape by an instant heating device while winding;
(3) and taking out the liner with the deformable skeleton, wherein the eight-claw support structure can reduce the volume and take out the liner from the opening of the gas storage tank, so as to obtain the liner-free high-pressure gas storage tank.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A preparation method of a high-pressure gas storage tank without an inner container is characterized by comprising the following steps:
(1) manufacturing a removable inner container;
(2) coating release liquid which is easy to demould on the outer surface of the inner container, and then winding the thermoplastic carbon fiber unidirectional tape to reach the strength and thickness required by the design, wherein the winding of the carbon fiber unidirectional tape needs to be carried out under the heating condition, and the carbon fiber unidirectional tape is wound and heated at the same time;
(3) and removing the inner container to obtain the high-pressure gas storage tank without the inner container.
2. The method for preparing the high-pressure gas storage tank without the inner container according to claim 1, wherein the removable inner container in the step (1) is an inner container made of a high polymer material, an inner container made by 3D printing or an inner container with a deformable skeleton.
3. The method for preparing a high-pressure gas storage tank without an inner container according to claim 2, wherein the high polymer material is expanded polystyrene.
4. The method for preparing the high-pressure air storage tank without the inner container as claimed in claim 2, wherein the inner container with the deformable skeleton is an eight-claw support structure.
5. The method for manufacturing a high-pressure gas storage tank without an inner container according to claim 4,
the eight-claw supporting structure is made of metal or engineering plastics.
6. The method for preparing a high-pressure gas storage tank without an inner container as claimed in claim 1, wherein the release liquid in the step (2) is an acrylic synthetic resin polymer.
7. The method as claimed in claim 1, wherein the heating temperature in step (2) is 300-500 ℃.
8. The method for manufacturing the high-pressure air storage tank without the inner container according to claim 1, wherein the thermoplastic carbon fiber unidirectional tape in the step (2) is wound in a winding manner of plus or minus 45 degrees.
9. The method for preparing the high-pressure gas storage tank without the inner container according to claim 2, wherein the inner container made of the polymer material in the step (3) is removed by a combustion and dissolution method, the inner container made by 3D printing is removed by a dissolution method, and the inner container with a deformable framework is taken out by structural deformation.
10. The method as claimed in claim 9, wherein the combustion dissolution method comprises heating at 150 ℃ and 100 ℃ for 25-35min, and adding acetone for dissolution.
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| CN202210279265.4A CN114368171A (en) | 2022-03-22 | 2022-03-22 | Preparation method of high-pressure gas storage tank without inner container |
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| CN202210279265.4A CN114368171A (en) | 2022-03-22 | 2022-03-22 | Preparation method of high-pressure gas storage tank without inner container |
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| CN115095789A (en) * | 2022-06-30 | 2022-09-23 | 东南大学 | Lining-free deep-cooling high-pressure hydrogen storage cylinder and preparation device thereof |
| CN115095789B (en) * | 2022-06-30 | 2023-08-18 | 东南大学 | Lining-free cryogenic high-pressure hydrogen storage cylinder and preparation device thereof |
| WO2024040631A1 (en) * | 2022-08-24 | 2024-02-29 | 禾材高科(苏州)有限公司 | Preparation method for inner-container-free high-pressure gas storage tank |
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