A non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers

Abstract

This invention discloses a non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer. The non-metallic composite hydrogen transport hose of this invention includes, from the inside out, a non-metallic inner tube, a non-metallic fiber reinforcement layer, and a non-metallic outer protective tube. The non-metallic inner tube consists of, from the inside out, an organic hydrogen barrier coating, a composite fiber lining, and a barrier layer. The non-metallic fiber reinforcement layer consists of, from the inside out, a fiber pre-impregnated winding layer and a reinforcing rib layer. The non-metallic inner tube and the non-metallic fiber reinforcement layer are bonded together with thermosetting polyurethane. The non-metallic fiber reinforcement layer and the non-metallic outer protective tube are connected in a non-adhesive manner. This non-metallic composite hose of the present invention has good hydrogen leakage prevention capability and flexibility, and can be used for high-pressure hydrogen transport.

Description

Technical Field

[0001] This invention belongs to the field of new energy development and utilization technology, and relates to a non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers. Background Technology

[0002] The widespread use of traditional fossil fuels has released large amounts of greenhouse gases, severely impacting the global ecological environment. Furthermore, with continuous human exploitation, the depletion of fossil fuels is an inevitable problem. Therefore, in recent years, countries around the world have taken action to actively seek secondary energy sources.

[0003] Hydrogen energy boasts advantages such as abundant reserves, high calorific value, and pollution-free combustion products, making it a promising secondary energy source often hailed as the "ultimate energy source." To achieve large-scale utilization of hydrogen energy, it is necessary to conduct research on hydrogen transportation methods and related safety issues. Pipeline hydrogen transportation is currently the most economical and efficient method for large-scale, long-distance hydrogen transportation.

[0004] When using existing pipelines for hydrogen blending or constructing new steel pipelines for pure hydrogen transport, hydrogen embrittlement problems such as hydrogen bubbling and hydrogen-induced cracking are unavoidable. These problems can lead to pipeline failures or leaks, causing serious damage to the steel pipe itself and the surrounding environment. Therefore, research into new types of hydrogen transport pipelines is necessary. Using non-metallic materials as the pipe material for hydrogen transport pipelines is an effective way to avoid hydrogen embrittlement. Currently, hydrogen transport pipelines typically use a non-metallic inner tube wrapped with high-strength steel wire to meet strength requirements, but this also increases the risk of hydrogen embrittlement to some extent.

[0005] Hydrogen molecules are very small, making them more prone to leakage when passing through weak points in pipe walls and at connections between pipes and equipment. Furthermore, the small molecular weight of hydrogen leads to its faster diffusion rate, increasing the risk of serious combustion and explosion accidents. Therefore, preventing hydrogen leakage from pipelines is crucial. However, most existing non-metallic composite hydrogen transport hoses employ a single-layer hydrogen-barrier structure. When the hydrogen-barrier layer is damaged or the transport pressure is high, the hydrogen transport pipeline cannot guarantee adequate leak-proof capabilities. Summary of the Invention

[0006] The purpose of this invention is to provide a non-metallic composite hydrogen transport hose with multiple types of hydrogen barrier layers.

[0007] This invention relates to a non-metallic composite hose that exhibits excellent hydrogen leakage prevention and flexibility, enabling its use in high-pressure hydrogen transportation. The main body of the hose consists of three parts: a non-metallic inner tube, a non-metallic fiber reinforcement layer, and a non-metallic outer protective tube, all bonded together. The non-metallic inner tube comprises an organic hydrogen-blocking coating, a composite fiber lining, and a barrier layer; the non-metallic fiber reinforcement layer consists of a fiber pre-impregnated winding layer and a reinforcing rib layer; and the space between the non-metallic fiber reinforcement layer and the non-metallic outer protective tube is filled with liquid unsaturated silicone resin capable of rapidly absorbing hydrogen.

[0008] This invention provides a non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, comprising a non-metallic inner tube, a non-metallic fiber reinforcement layer, and a non-metallic outer protective tube arranged sequentially from the inside to the outside.

[0009] The non-metallic inner tube consists of an organic hydrogen barrier coating, a composite fiber lining tube, and a barrier layer from the inside out.

[0010] The non-metallic fiber reinforcement layer consists of a fiber prepreg winding layer and a reinforcing rib layer from the inside out.

[0011] The non-metallic inner tube and the non-metallic fiber reinforcement layer are bonded together with thermosetting polyurethane; the non-metallic fiber reinforcement layer and the non-metallic outer protective tube are connected in a non-adhesive manner.

[0012] In the aforementioned non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, the organic hydrogen barrier coating in the non-metallic inner tube is applied to the inner wall of the composite fiber liner tube by spraying and then baked to form a stable surface coating; the composite fiber liner tube and the barrier layer are formed by multi-layer heating co-extrusion.

[0013] In the aforementioned non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, the composite fiber inner liner, the reinforcing rib layer, and the non-metallic outer protective tube are made of polyethylene and / or polyvinylidene fluoride.

[0014] In the aforementioned non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, the organic hydrogen barrier coating is made of at least one of polyvinylidene fluoride, polytetrafluoroethylene, and modified polyvinylidene fluoride, and the modified polyvinylidene fluoride is preferably APTES-GO modified polyvinylidene fluoride; the APTES-GO modified polyvinylidene fluoride is an APTES-GO modified PVDF organic hydrogen barrier coating, which is made of the following components: 0.05%~1.5% by mass of APTES-GO (aminopropyltriethoxysilane-silanized graphene oxide) filler, 10%~25% by mass of PVDF (polyvinylidene fluoride), and the balance being DMF (N,N-dimethylformamide);

[0015] The organic hydrogen barrier coating is a single-layer structure with a thickness of 10~100μm.

[0016] The preparation method of the APTES-GO modified PVDF organic hydrogen barrier coating in this invention includes the following steps:

[0017] (1) Preparation of APTES-GO filler: First, graphene oxide (GO) is added to aminopropyltriethoxysilane (APTES) to make the mass concentration of GO reach 0.05~0.4 g / mL (e.g. 0.06 g / mL, 0.08 g / mL, 0.1 g / mL, 0.2 g / mL, 0.3 g / mL, etc.); then a dispersant is added for dilution, and the diluted system is dispersed; then the dispersed system is separated into solid and liquid to obtain a solid material, and the solid material is dried to obtain aminopropyltriethoxysilane-silanized graphene oxide (APTES-GO) filler;

[0018] (2) Preparation of APTES-GO modified PVDF organic hydrogen barrier coating: APTES-GO filler and PVDF powder are mixed in a DMF environment, and the mass fraction of APTES-GO is controlled to be 0.05%~1.5% (e.g. 0.05%, 0.08%, 0.10%, 0.2%, 0.5%, 0.8%, 1.0%, 1.2%, 1.4%, 1.5%, etc.), and the mass fraction of PVDF powder is 10%~25% (e.g. 11%, 12%, 14%, 16%, 18%, 20%, 22%, 24%), with DMF as the balance, to obtain a mixed system; the mixed system is dispersed to obtain APTES-GO modified PVDF organic hydrogen barrier coating, namely, aminopropyltriethoxysilane silanized graphene oxide modified polyvinylidene fluoride.

[0019] In the above-mentioned non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, the barrier layer includes an adhesive matrix layer and hydrogen barrier powder particles dispersed in the adhesive matrix layer.

[0020] The adhesive substrate layer is made of polyethyleneamine resin, and the hydrogen barrier powder particles are concave particles made of hydrogen barrier powder.

[0021] The thickness of the barrier layer can be 0.1~500μm.

[0022] In the aforementioned non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, the hydrogen barrier powder is selected from at least one of graphene powder, nano-clay powder, and molybdenum powder.

[0023] In the aforementioned non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, in the cross-section of the adhesive matrix layer, the hydrogen barrier powder particles are arranged in parallel with the axial direction offset by half or one hydrogen barrier powder particle length, and the hydrogen permeability of the hydrogen barrier powder particles should be less than 3.5 × 10⁻⁶. -9 mol·m / m 2 For applications requiring higher hydrogen barrier properties, the hydrogen permeability of the hydrogen barrier powder particles should be further optimized to be less than 1.5 × 10⁻⁶ MPa. -12 mol·m / m 2 ·s·MPa.

[0024] In the above-mentioned non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, the fiber pre-impregnated winding layer has a multi-layer structure with a winding angle of 60~80° and 3~6 layers.

[0025] The fiber prepreg winding layer is made of at least one material selected from polyester fiber, aramid fiber and glass fiber, and is more preferably carbon fiber.

[0026] In the aforementioned non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, the reinforcing ribs in the non-metallic fiber reinforcement layer are arranged on the outer wall of the fiber pre-impregnated winding layer in either a spiral winding or axial manner.

[0027] The reinforcing rib layer is attached to the outer wall of the fiber prepreg winding layer by an adhesive and cured by heating.

[0028] In the aforementioned non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers, the cavity formed between the non-metallic fiber reinforcement layer and the non-metallic outer protective tube is filled with a liquid that has hydrogen absorption function.

[0029] The liquid with hydrogen absorption function includes unsaturated organosilicon resin.

[0030] In this invention, the liquid with hydrogen absorption function can be periodically injected with new liquid unsaturated organosilicon resin from one end of the pipe in a displacement manner to ensure that the liquid has excellent hydrogen absorption performance.

[0031] The liquid with hydrogen absorption function can be an unsaturated organosilicon resin, which can maintain stable physicochemical properties over a wide temperature range and in complex environments.

[0032] The present invention adopts the above technical solution, which has the following advantages:

[0033] 1. The non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers provided by the present invention consists of three parts: a non-metallic inner tube, a non-metallic fiber reinforcement layer, and a non-metallic outer protective tube. The non-metallic inner tube and the non-metallic fiber reinforcement layer are bonded to each other, which can ensure that the pipeline has a certain degree of flexibility while achieving high-pressure hydrogen transport.

[0034] 2. The non-metallic composite hydrogen transport hose provided by this invention is made entirely of non-metallic materials, which can fundamentally avoid the problem of hydrogen embrittlement. The main body of the non-metallic inner tube and the non-metallic outer protective tube are both made of high-density polyethylene material, which can effectively resist the corrosion of the transported medium and the external environment while ensuring the strength of the pipe, thus extending the service life of the hydrogen transport hose.

[0035] 3. The non-metallic inner tube provided by the present invention consists of three parts: an organic hydrogen barrier coating, a composite fiber inner lining tube, and a barrier layer. The organic hydrogen barrier coating and the barrier layer are thinner than the normal hydrogen barrier layer, which can significantly reduce the thickness of the hydrogen delivery hose. At the same time, the double-layer hydrogen barrier structure is more stable than the traditional single-layer hydrogen barrier layer, which can avoid the problem of hydrogen pipeline leakage caused by accidental damage to the single-layer hydrogen barrier layer, and improve the integrity of the hydrogen delivery hose structure and function.

[0036] 4. The barrier layer provided by the present invention has uniformly arranged "concave" shaped hydrogen-blocking powder particles. Each row of hydrogen-blocking powder particles is staggered by half or one hydrogen-blocking powder particle length along the axial direction, which maximizes the hydrogen-blocking performance of the barrier layer. The base material of the barrier layer is selected to be a material with anti-corrosion properties, which further ensures the integrity of the structure and function of the non-metallic composite hydrogen transport hose.

[0037] 5. The non-metallic fiber reinforcement layer provided by the present invention includes a fiber prepreg winding layer and a reinforcing rib layer. The multi-layer fiber prepreg winding layer provides good pressure resistance for the pipeline, and the reinforcing ribs arranged in a circumferential spiral or axial form on the outside of the fiber prepreg winding layer further enhance the pressure resistance of the hydrogen delivery hose.

[0038] 6. The non-metallic outer protective tube and the non-metallic fiber reinforcement layer provided by the present invention do not use adhesives, so that the outer protective layer of the pipeline can be manufactured and transported separately from the rest of the pipeline, reducing the cost of pipeline transportation and installation. In actual installation, the outer protective layer is directly put on the outside of the pipeline fiber reinforcement layer, which greatly reduces the installation time of hydrogen transmission hose.

[0039] 7. The present invention fills the gaps between the non-metallic fiber reinforcement layer and the non-metallic outer protective tube with liquid unsaturated organosilicon resin with high physical and chemical stability, which can realize the function of absorbing hydrogen at normal temperature and pressure, and effectively prevent hydrogen from leaking out of the pipeline.

[0040] 8. The liquid unsaturated silicone resin of this invention is independent of the overall structure of the pipeline and can be replaced from one end of the pipeline by liquid displacement, ensuring that the pipeline has good hydrogen barrier performance.

[0041] 9. This invention employs three different types of hydrogen barrier layers, which, while ensuring the good hydrogen barrier performance of the non-metallic hydrogen transport hose, avoids the problem of hydrogen leakage caused by the accidental failure of a certain hydrogen barrier layer in the pipeline, thus greatly improving the reliability of the non-metallic composite hydrogen transport hose. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the cross-sectional structure of the non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers of the present invention.

[0043] Figure 2 This is a schematic diagram of the non-metallic composite hydrogen delivery hose structure with circumferential reinforcing ribs of the present invention;

[0044] Figure 3 This is a schematic diagram of the non-metallic composite hydrogen delivery hose structure with axial reinforcing ribs of the present invention;

[0045] Figure 4 This is an axial cross-sectional view of the non-metallic inner tube of the non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers of the present invention.

[0046] Figure 5 This is an axial cross-sectional view of the barrier layer of the non-metallic inner tube of the non-metallic composite hydrogen transport hose of this invention.

[0047] Figure 6 This is an axial cross-sectional view of the non-metallic fiber reinforcement layer of the non-metallic composite hydrogen delivery hose with circumferential reinforcing ribs of the present invention;

[0048] Figure 7 This is an axial cross-sectional view of the non-metallic fiber reinforcement layer of the non-metallic composite hydrogen delivery hose with axial reinforcing ribs of the present invention;

[0049] The various markers in the diagram:

[0050] 1 Non-metallic inner tube; 2 Non-metallic fiber reinforcement layer; 3 Non-metallic outer protective tube; 21 Fiber prepreg winding layer; 22 Reinforcing rib layer; 11 Organic hydrogen barrier coating; 12 Composite fiber inner lining tube; 13 Barrier layer; 131 Matrix layer; 132 Hydrogen barrier powder particles. Detailed Implementation

[0051] The present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to the following embodiments.

[0052] like Figures 1 to 3As shown, the present invention provides a non-metallic composite hydrogen transport hose with multiple hydrogen barrier layers. From the inside out, it consists of a non-metallic inner tube 1, a non-metallic fiber reinforcement layer 2, and a non-metallic outer protective tube 3. The non-metallic inner tube 1 consists of an organic hydrogen barrier coating 11, a composite fiber lining tube 12, and a barrier layer 13. The non-metallic fiber reinforcement layer 2 consists of a fiber prepreg winding layer 21 and a reinforcing rib layer 22. The non-metallic inner tube 1 and the non-metallic fiber reinforcement layer 2 are bonded to each other.

[0053] In the above embodiments, such as Figure 4 As shown, the composite fiber inner liner tube 12 and the barrier layer 13 are made into a non-metallic inner tube preform by multi-layer heating co-extrusion process. Then, the organic hydrogen barrier coating 11 is applied to the inner wall of the composite fiber inner liner tube 12 by spraying. Finally, a stable surface coating is formed by baking, forming a stable non-metallic inner tube 1, ensuring that the non-metallic inner tube 1 has excellent hydrogen barrier performance.

[0054] In the above embodiments, preferably, the material of the organic hydrogen barrier coating 11 is APTES-GO modified polyvinylidene fluoride.

[0055] Furthermore, the preparation method of APTES-GO modified PVDF organic hydrogen barrier coating includes the following steps:

[0056] (1) Preparation of APTES-GO packing material: First, GO was added to APTES to make the GO mass concentration reach 0.2 g / mL; then ethanol was added to dilute the solution by 62.5 times, and the diluted system was stirred at 500 rpm for 4 h in a 70℃ water bath to disperse it evenly; then the dispersed system was centrifuged at 5000 rpm for 8 min in a high-speed centrifuge to remove the supernatant and obtain solid material. The solid material was dried in a vacuum environment at 70℃ for 24 h to obtain APTES-GO packing material.

[0057] (2) Preparation of APTES-GO modified PVDF organic hydrogen barrier coating: APTES-GO filler and PVDF are mixed in DMF environment, and the mass fraction of APTES-GO is controlled to be 1%, the mass fraction of PVDF powder is 20%, and the balance is DMF to obtain a mixed system; the mixed system is dispersed by uniformly stirring at 500 rpm for 24 h in a constant temperature water bath at 80℃ to obtain APTES-GO modified PVDF organic hydrogen barrier coating.

[0058] In the above embodiments, preferably, the material of the composite fiber liner tube 12 is high-density polyethylene.

[0059] In the above embodiments, such as Figure 5As shown, the barrier layer 13 includes a substrate layer 131 with adhesive function and hydrogen-blocking powder particles 132. The substrate layer 131 can be made of one or more of polyethylene, polypropylene, polyethylene terephthalate and silicate compounds, and the hydrogen-blocking powder can be made of one or more of graphene powder, nano clay powder and molybdenum powder.

[0060] In the above embodiments, preferably, the substrate layer 131 material can be selected as a polyethyleneamine resin with anti-corrosion effect.

[0061] In the above embodiments, the "concave" shaped particles made of hydrogen-blocking powder particles 132 can temporarily collect hydrogen when hydrogen comes into contact with the hydrogen-blocking powder and diffuses to both sides, thereby improving the hydrogen-blocking performance of the barrier layer.

[0062] In the above embodiments, preferably, the hydrogen-blocking powder particles 132 should be uniformly arranged in a direction parallel to the pipeline axis, and a stable barrier layer 13 should be formed by curing treatment to ensure that the non-metallic composite hydrogen transport hose has good hydrogen-blocking performance.

[0063] In the above embodiment, the non-metallic inner tube 1 and the non-metallic fiber reinforcement layer 2 are bonded together by thermosetting polyurethane.

[0064] In the above embodiments, the fiber prepreg winding layer 21 and the reinforcing rib layer 22 are first bonded together and then heated and cured to form an integrated stable non-metallic fiber reinforcing layer 2. The fiber prepreg winding layer 21 has a multi-layer structure with a winding angle of 60~80° and 3~6 layers.

[0065] In the above embodiments, such as Figure 6 , 7 As shown, the fiber prepreg winding layer 21 is first preheated, and then the reinforcing rib layer 22 with adhesive is arranged on the outer wall of the fiber prepreg winding layer 21 in either a spiral winding or axial manner. Finally, a stable non-metallic fiber reinforcement layer 2 is obtained by further heating and curing.

[0066] In the above embodiments, the material of the fiber prepreg winding layer 21 is polyester fiber, preferably aramid fiber, glass fiber, and more preferably carbon fiber, to ensure that the pipeline has good pressure-bearing performance.

[0067] In the above embodiments, preferably, the material of the reinforcing rib layer 22 can be high-density polyethylene.

[0068] In the above embodiment, there is no adhesive between the non-metallic outer protective tube 3 and the non-metallic fiber reinforcement layer 2. This facilitates the transportation and installation of the non-metallic composite hydrogen delivery hose. When used on-site, the non-metallic outer protective tube 3 can be directly sleeved over the outside of the non-metallic fiber reinforcement layer 2 and tightly fitted to the reinforcing rib layer 22.

[0069] In the above embodiment, a liquid with hydrogen absorption function is injected into the cavity formed by the non-metallic outer protective tube 3, the non-metallic fiber reinforcement layer 2 and the reinforcing rib layer 22, so as to achieve pipeline sealing while ensuring the hydrogen barrier performance of the non-metallic composite hydrogen transport hose.

[0070] In the above embodiments, the injected liquid with hydrogen absorption function is independent of the overall structure of the non-metallic composite hydrogen transport hose. New liquid unsaturated organosilicon resin can be periodically injected into one end of the pipeline in a displacement manner to ensure that the non-metallic composite hydrogen transport hose as a whole has good hydrogen barrier performance.

[0071] In the above embodiments, preferably, the material of the non-metallic outer protective tube 3 can be high-density polyethylene.

[0072] In the above embodiments, preferably, the liquid with hydrogen absorption function can be a liquid unsaturated organosilicon resin that can maintain stable physicochemical properties over a wide temperature range and in complex environments.

[0073] This invention is illustrated only with reference to the above embodiments; the structure, location, and connection of each component can vary. Any improvements or equivalent modifications made to individual components based on the principles of this invention should not be excluded from the scope of protection of this invention.

Claims

1. A non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer, characterized in that, It includes a non-metallic inner tube, a non-metallic fiber reinforcement layer, and a non-metallic outer protective tube, which are sequentially arranged from the inside out; The non-metallic inner tube consists of an organic hydrogen barrier coating, a composite fiber lining tube, and a barrier layer from the inside out. The non-metallic fiber reinforcement layer consists of a fiber prepreg winding layer and a reinforcing rib layer from the inside out. The non-metallic inner tube and the non-metallic fiber reinforcement layer are bonded together with thermosetting polyurethane; the non-metallic fiber reinforcement layer and the non-metallic outer protective tube are connected in a non-bonded manner. The barrier layer includes an adhesive matrix layer and hydrogen-blocking powder particles dispersed in the adhesive matrix layer; In the cross-section of the adhesive matrix layer, the hydrogen-blocking powder particles are arranged in parallel with the axial direction offset by half or one hydrogen-blocking powder particle length, and the hydrogen permeability of the hydrogen-blocking powder particles is less than 3.5 × 10⁻⁶. -9 mol·m / m 2 ·s·MPa.

2. The non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layer according to claim 1, characterized in that, In the non-metallic inner tube, the organic hydrogen barrier coating is applied to the inner wall of the composite fiber liner tube by spraying and a stable surface coating is formed by baking; the composite fiber liner tube and the barrier layer are formed by multi-layer heating co-extrusion.

3. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to claim 1 or 2, characterized in that, The composite fiber inner liner, the reinforcing rib layer, and the non-metallic outer protective tube are made of polyethylene and / or polyvinylidene fluoride.

4. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to claim 1 or 2, characterized in that, The organic hydrogen barrier coating is made of at least one of polyvinylidene fluoride, polytetrafluoroethylene, and modified polyvinylidene fluoride. The organic hydrogen barrier coating is a single-layer structure with a thickness of 10~100μm.

5. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to claim 1 or 2, characterized in that, The adhesive substrate layer is made of polyethyleneamine resin, and the hydrogen barrier powder particles are concave particles made of hydrogen barrier powder. The thickness of the barrier layer is 0.1~500μm.

6. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to claim 5, characterized in that, The hydrogen-barrier powder is selected from at least one of graphene powder, nano-clay powder, and molybdenum powder.

7. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to claim 1 or 2, characterized in that, The fiber prepreg winding layer has a multi-layer structure with a winding angle of 60~80° and 3~6 layers. The fiber prepreg winding layer is made of at least one material selected from polyester fiber, aramid fiber and glass fiber.

8. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to claim 1 or 2, characterized in that, In the non-metallic fiber reinforcement layer, the reinforcing ribs are arranged on the outer wall of the fiber prepreg winding layer in either a spiral winding or axial manner. The reinforcing rib layer is attached to the outer wall of the fiber prepreg winding layer by an adhesive and cured by heating.

9. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to claim 1 or 2, characterized in that, The cavity formed between the non-metallic fiber reinforcement layer and the non-metallic outer protective tube is filled with a liquid that has hydrogen absorption function. The liquid with hydrogen absorption function includes unsaturated organosilicon resin.

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