Nonmetal composite hydrogen conveying hose with multi-form hydrogen blocking layers

Abstract

The invention discloses a non-metal composite hydrogen conveying hose with a multi-form hydrogen blocking layer. The non-metal composite hydrogen conveying hose comprises a non-metal inner pipe, a non-metal fiber reinforcement layer and a non-metal outer protection pipe which are sequentially arranged from inside to outside in a sleeving mode. The non-metal inner pipe sequentially comprises an organic hydrogen-resistant coating, a composite fiber lining pipe and a barrier layer from inside to outside; the non-metal fiber reinforced layer sequentially comprises a fiber pre-impregnated winding layer and a reinforcing rib layer from inside to outside; the non-metal inner pipe and the non-metal fiber reinforced layer are bonded with each other by adopting thermosetting polyurethane; the non-metal fiber reinforcement layer and the non-metal outer protection pipe are connected in a non-bonding mode. The non-metal composite hose has good hydrogen leakage prevention capacity and flexibility and can be used for high-pressure hydrogen conveying.

Description

Technical Field

[0001] The invention belongs to the technical field of new energy development and utilization, and relates to a non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer. Background Art

[0002] The widespread use of traditional fossil energy releases a large amount of greenhouse gases, which has a serious impact on the global ecological environment. At the same time, with the continuous exploitation of humans, the depletion of fossil energy is also an inevitable problem. Therefore, in recent years, countries around the world have taken action to actively search for secondary energy.

[0003] Hydrogen energy has the advantages of abundant reserves, high calorific value, and pollution-free combustion products. It is a secondary energy source with great development prospects and is known as the "ultimate energy source". In order to realize the large-scale utilization of hydrogen energy, it is necessary to carry out research on related issues such as hydrogen transportation methods and transportation safety. Pipeline hydrogen transportation is currently the most economical and efficient large-scale long-distance hydrogen transportation method.

[0004] When using existing pipelines for hydrogen blending or building new steel pipelines for pure hydrogen transportation, hydrogen embrittlement problems such as hydrogen bubbling and hydrogen-induced cracking are inevitable, which can lead to failure or leakage of the hydrogen pipeline and other accidents, causing serious damage to the steel pipe body and the environment around the pipeline. Therefore, it is necessary to carry out research on new hydrogen pipelines. Using non-metallic materials as hydrogen pipeline pipes is an effective way to avoid hydrogen embrittlement problems. At present, hydrogen pipelines usually wrap high-strength steel wire around the non-metallic inner pipe to meet the pipeline strength requirements, but this also increases the risk of hydrogen embrittlement in the pipeline to a certain extent.

[0005] Hydrogen molecules are very small in size, and are more likely to leak when passing through weak points in the pipe wall and the connection between the pipe and the equipment. At the same time, the molecular weight of hydrogen is also very small, which leads to a faster diffusion rate of hydrogen and is more likely to cause serious combustion and explosion accidents. Therefore, it is crucial to prevent hydrogen from leaking from the pipeline. However, most existing non-metallic composite hydrogen hoses use a single-layer hydrogen barrier structure. When the hydrogen barrier layer is damaged or the transmission pressure is high, it cannot be guaranteed that the hydrogen pipeline has good leakage prevention capabilities. Summary of the invention

[0006] The object of the present invention is to provide a non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer.

[0007] The non-metallic composite hose of the present invention has good hydrogen leakage prevention capability and flexibility, and can be used for high-pressure hydrogen transportation. The pipeline body is composed of three parts: a non-metallic inner tube, a non-metallic fiber reinforcement layer, and a non-metallic outer protective tube, and the non-metallic inner tube and the non-metallic fiber reinforcement layer are bonded to each other. The non-metallic inner tube is composed of three parts: an organic hydrogen barrier coating, a composite fiber liner tube, and a barrier layer; the non-metallic fiber reinforcement layer is composed of two parts: a fiber prepreg 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 a liquid unsaturated silicone resin that can quickly absorb hydrogen.

[0008] The present invention provides a non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer, comprising a non-metallic inner tube, a non-metallic fiber reinforcement layer and a non-metallic outer protective tube which are sequentially sleeved from the inside to the outside; The non-metallic inner tube comprises, from the inside to the outside, an organic hydrogen barrier coating, a composite fiber lining tube and a barrier layer; The non-metallic fiber reinforcement layer is composed of a fiber prepreg winding layer and a reinforcing rib layer from the inside to the outside; The non-metallic inner tube and the non-metallic fiber reinforced layer are bonded to each other using thermosetting polyurethane; the non-metallic fiber reinforced layer and the non-metallic outer protective tube are connected in a non-bonding manner.

[0009] In the above-mentioned non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layers, 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 co-extruded by multi-layer heating.

[0010] In the above-mentioned non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layers, the composite fiber liner tube, the reinforcing rib layer and the non-metallic outer protective tube are made of polyethylene and / or polyvinylidene fluoride.

[0011] In the above-mentioned non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layer, the organic hydrogen barrier coating is made of at least one of polyvinylidene fluoride, polytetrafluoroethylene and modified polyvinylidene fluoride, and further the modified polyvinylidene fluoride is preferably APTES-GO modified polyvinylidene fluoride; the APTES-GO modified polyvinylidene fluoride is APTES-GO modified PVDF organic hydrogen barrier coating, which includes the following components: APTES-GO (silanized graphene oxide with aminopropyl triethoxysilane) filler with a mass fraction of 0.05% to 1.5%, PVDF (polyvinylidene fluoride) with a mass fraction of 10% to 25%, and the balance is DMF (N,N-dimethylformamide); The organic hydrogen barrier coating is a single-layer structure with a thickness of 10-100 μm.

[0012] In the present invention, the preparation method of the APTES-GO modified PVDF organic hydrogen barrier coating comprises the following steps: (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 to dilute the system, and the diluted system is dispersed; then, the dispersed system is separated from the solid and liquid to obtain a solid substance, and the solid substance is dried to obtain aminopropyltriethoxysilane silanized graphene oxide (APTES-GO) filler; (2) Preparation of APTES-GO modified PVDF organic hydrogen barrier coating: APTES-GO filler and PVDF powder were mixed in a DMF environment, and the mass fraction of APTES-GO was controlled to be 0.05%~1.5% (for example, 0.05%, 0.08%, 0.10%, 0.2%, 0.5%, 0.8%, 1.0%, 1.2%, 1.4%, 1.5%, etc.), the mass fraction of PVDF powder was controlled to be 10%~25% (for example, 11%, 12%, 14%, 16%, 18%, 20%, 22%, 24%), and the remainder was DMF to obtain a mixed system; the mixed system was dispersed to obtain an APTES-GO modified PVDF organic hydrogen barrier coating, i.e., polyvinylidene fluoride modified with graphene oxide silanized with aminopropyltriethoxysilane.

[0013] In the above-mentioned non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layer, the barrier layer includes an adhesive matrix layer and hydrogen barrier powder particles dispersed in the adhesive matrix layer; The bonding substrate layer is made of polyethylene amine resin material, and the hydrogen barrier powder particles are "concave" shaped particles made of hydrogen barrier powder; The thickness of the barrier layer may be 0.1-500 μm.

[0014] In the above-mentioned non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layers, the hydrogen barrier powder is selected from at least one of graphene powder, nano-clay powder and molybdenum powder.

[0015] In the above-mentioned non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layer, in the cross section of the bonding matrix layer, the hydrogen barrier powder is arranged in parallel with half or one length of the hydrogen barrier powder staggered in the axial direction, and the hydrogen permeability of the hydrogen barrier powder should be less than 3.5×10 -9 mol·m / m 2 ·s·MPa. When there is a higher requirement for hydrogen barrier ability, the hydrogen permeability of hydrogen barrier powder should be further preferably less than 1.5×10 -12 mol·m / m2 ·s·MPa.

[0016] In the above-mentioned non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layer, the fiber prepreg winding layer is a multi-layer structure, the winding angle is 60-80°, and the number of layers is 3-6; 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 made of carbon fiber.

[0017] In the above-mentioned non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layer, in the non-metallic fiber reinforced layer, the reinforcing rib layer is arranged on the outer wall of the fiber prepreg winding layer in two ways: spiral winding or axial winding; The reinforcing rib layer is connected to the outer wall of the fiber prepreg winding layer by an adhesive and is cured by heating.

[0018] In the above-mentioned non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layer, the cavity formed between the non-metallic fiber reinforced layer and the non-metallic outer protective tube is filled with liquid having hydrogen absorption function; The liquid with hydrogen absorbing function includes unsaturated silicone resin.

[0019] In the present invention, the liquid with hydrogen absorption function can be regularly injected with new liquid unsaturated silicone resin from one end of the pipeline in a displacement manner to ensure that the liquid has excellent hydrogen absorption performance; The liquid with hydrogen absorption function can specifically be an unsaturated silicone resin, which can maintain stable physical and chemical properties in a wide temperature range and complex environment.

[0020] The present invention adopts the above technical solution, which has the following advantages: 1. The non-metallic composite hydrogen transmission hose with a multi-form hydrogen barrier layer provided by the present invention comprises a non-metallic inner tube, a non-metallic fiber reinforced layer and a non-metallic outer protective tube. The non-metallic inner tube and the non-metallic fiber reinforced layer are bonded to each other, which can ensure that the pipeline has a certain flexibility while achieving high-pressure hydrogen transmission.

[0021] 2. The non-metallic composite hydrogen transport hose provided by the present invention is made of non-metallic materials as a whole, which can fundamentally avoid the occurrence of hydrogen embrittlement problems. The main part of the non-metallic inner tube and the non-metallic outer protective tube are both made of high-density polyethylene materials. While ensuring the strength of the pipeline, it can also effectively resist corrosion from the transport medium and the external environment, thereby extending the service life of the hydrogen transport hose.

[0022] 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 thickness of the organic hydrogen barrier coating and the barrier layer is thinner than that of the normal hydrogen barrier layer, which can greatly reduce the thickness of the hydrogen transport 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 accidental damage to the single-layer hydrogen barrier layer and thus causing leakage of the hydrogen transport pipeline, thereby improving the structural and functional integrity of the hydrogen transport hose.

[0023] 4. The barrier layer provided by the present invention has evenly arranged "concave"-shaped hydrogen barrier powder particles, and each row of hydrogen barrier powder particles is arranged axially staggered by half or one length of the hydrogen barrier powder, thereby ensuring the hydrogen barrier performance of the barrier layer to the greatest extent. The barrier layer matrix material is selected from materials with corrosion resistance to further ensure the structural and functional integrity of the non-metallic composite hydrogen transport hose.

[0024] 5. The non-metallic fiber reinforced layer provided by the present invention includes a fiber prepreg winding layer and a reinforcing rib layer, wherein the fiber prepreg winding layer with a multi-layer structure provides good compressive 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 compressive resistance of the hydrogen transport hose.

[0025] 6. No adhesive is used between the non-metallic outer protective tube and the non-metallic fiber reinforced layer provided by the present invention, so that the outer protective layer of the pipeline can be manufactured and transported separately from the remaining parts, reducing the cost of pipeline transportation and installation. During actual installation, the outer protective layer is directly put on the outside of the fiber reinforced layer of the pipeline, greatly reducing the installation time of the hydrogen transport hose.

[0026] 7. The present invention fills the gaps between the non-metallic fiber reinforced layer and the non-metallic outer protective tube with liquid unsaturated silicone resin having high physical and chemical stability, which can achieve the function of absorbing hydrogen at room temperature and pressure, and effectively prevent hydrogen from leaking out of the pipeline.

[0027] 8. The liquid unsaturated silicone resin of the present invention is independent of the overall structure of the pipeline and can be replaced from one end of the pipeline by liquid displacement, thereby ensuring that the pipeline has good hydrogen resistance.

[0028] 9. The present invention adopts three different forms of hydrogen barrier layers, which not only ensures the good hydrogen barrier performance of the non-metallic hydrogen hose, but also avoids the problem of hydrogen leakage caused by accidental failure of a hydrogen barrier layer in the pipeline, greatly improving the reliability of the non-metallic composite hydrogen hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the cross-sectional structure of the non-metallic composite hydrogen transport hose with multi-form hydrogen barrier layers of the present invention; Figure 2 It is a schematic diagram of the structure of the non-metallic composite hydrogen transport hose with annular reinforcement ribs of the present invention; Figure 3 This is a schematic diagram of the structure of the non-metallic composite hydrogen transport hose with axial reinforcement ribs of the present invention; Figure 4 It is an axial cross-sectional view of the non-metal inner tube of the non-metal composite hydrogen transport hose with multi-form hydrogen barrier layers of the present invention; Figure 5 This is an axial cross-sectional view of the barrier layer of the non-metal inner tube of the non-metal composite hydrogen transport hose of the present invention; Figure 6 is an axial cross-sectional view of a non-metallic fiber reinforced layer of a non-metallic composite hydrogen transport hose with annular reinforcement ribs according to the present invention; Figure 7 It is an axial cross-sectional view of the non-metallic fiber reinforced layer of the non-metallic composite hydrogen transport hose with axial reinforcing ribs of the present invention; The marks in the figure: 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 liner tube; 13 barrier layer; 131 matrix layer; 132 hydrogen barrier powder particles. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0031] like Figures 1 to 3 As shown, the present invention provides a non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer, which comprises, from the inside to the outside, 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 comprises, from the inside to the outside, an organic hydrogen barrier coating 11, a composite fiber liner tube 12 and a barrier layer 13, the non-metallic fiber reinforcement layer 2 comprises, from the inside to the outside, a fiber prepreg winding layer 21 and a reinforcing rib layer 22, and the non-metallic inner tube 1 and the non-metallic fiber reinforcement layer 2 are bonded to each other.

[0032] In the above embodiment, if Figure 4 As shown, the composite fiber liner tube 12 and the barrier layer 13 are made into a non-metallic inner tube preform by a multi-layer heating co-extrusion process, and then the organic hydrogen barrier coating 11 is sprayed on the inner wall of the composite fiber liner tube 12, and finally a stable surface coating is formed by baking to form a stable non-metallic inner tube 1, thereby ensuring that the non-metallic inner tube 1 has excellent hydrogen barrier properties.

[0033] In the above embodiment, preferably, the material of the organic hydrogen barrier coating 11 is APTES-GO modified polyvinylidene fluoride.

[0034] Furthermore, the preparation method of the APTES-GO modified PVDF organic hydrogen barrier coating comprises the following steps: (1) Preparation of APTES-GO filler: First, GO was added to APTES to make the mass concentration of GO 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°C water bath to uniformly mix and disperse; then, the dispersed system was centrifuged at 5000 rpm for 8 min in a high-speed centrifuge, and the supernatant was removed to obtain a solid substance, and the solid substance was dried in a vacuum environment at 70°C for 24 h to obtain APTES-GO filler; (2) Preparation of APTES-GO modified PVDF organic hydrogen barrier coating: APTES-GO filler and PVDF were mixed in a DMF environment, with the mass fraction of APTES-GO controlled to be 1%, the mass fraction of PVDF powder controlled to be 20%, and the remainder being DMF to obtain a mixed system; the mixed system was uniformly stirred and mixed at 500 rpm in a constant temperature water bath at 80°C for 24 hours to obtain an APTES-GO modified PVDF organic hydrogen barrier coating.

[0035] In the above embodiment, preferably, the material of the composite fiber liner tube 12 is high-density polyethylene.

[0036] In the above embodiment, if Figure 5 As shown, the barrier layer 13 includes a base layer 131 with an adhesive function and hydrogen-barrier powder particles 132. The material of the base layer 131 can be one or more of polyethylene, polypropylene, polyethylene terephthalate and silicate compounds, and the material of the hydrogen-barrier powder can be one or more of graphene powder, nanoclay powder and molybdenum powder.

[0037] In the above embodiment, preferably, the material of the base layer 131 can be polyethylene amine resin with anti-corrosion effect.

[0038] In the above embodiment, the hydrogen barrier powder particles 132 are made into "concave" particles, so that when hydrogen contacts the hydrogen barrier powder and diffuses to both sides, hydrogen can be temporarily collected, thereby improving the hydrogen barrier performance of the barrier layer.

[0039] In the above embodiment, preferably, the hydrogen barrier powder particles 132 should be evenly arranged in a direction parallel to the pipeline axis, and form a stable barrier layer 13 through a curing process to ensure that the non-metallic composite hydrogen transport hose has good hydrogen barrier properties.

[0040] In the above embodiment, the non-metallic inner tube 1 and the non-metallic fiber reinforced layer 2 are bonded by thermosetting polyurethane.

[0041] In the above embodiment, the fiber prepreg winding layer 21 and the reinforcing rib layer 22 are first bonded and then heated and cured to form an integrated stable non-metallic fiber reinforced layer 2. The fiber prepreg winding layer 21 is a multi-layer structure with a winding angle of 60-80° and 3-6 layers.

[0042] In the above embodiment, if 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 a spiral winding or axial manner, and finally a stable non-metallic fiber reinforced layer 2 is obtained by further heating and curing.

[0043] In the above embodiment, 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.

[0044] In the above embodiment, preferably, the material of the reinforcing rib layer 22 can be high-density polyethylene.

[0045] In the above embodiment, there is no bonding between the non-metallic outer protective tube 3 and the non-metallic fiber reinforced layer 2. This facilitates the transportation and installation of the non-metallic composite hydrogen transport hose. When used on site, the non-metallic outer protective tube 3 can be directly sleeved on the outside of the non-metallic fiber reinforced layer 2 and fit closely with the reinforcing rib layer 22.

[0046] In the above embodiment, liquid with hydrogen absorption function is injected into the cavity formed by the non-metallic outer protective tube 3, the non-metallic fiber reinforced layer 2 and the reinforcing rib layer 22, so as to achieve pipeline sealing and ensure the hydrogen barrier performance of the non-metallic composite hydrogen transport hose.

[0047] In the above embodiment, the injected liquid with hydrogen absorption function is independent of the overall structure of the non-metallic composite hydrogen hose, and new liquid unsaturated silicone resin can be regularly injected at one end of the pipeline in a displacement manner to ensure that the non-metallic composite hydrogen hose as a whole has good hydrogen resistance.

[0048] In the above embodiment, preferably, the material of the non-metallic outer protective tube 3 can be high-density polyethylene.

[0049] In the above embodiment, preferably, the liquid having the hydrogen absorption function may be a liquid unsaturated silicone resin that can maintain stable physical and chemical properties in a wide temperature range and in a complex environment.

[0050] The present invention is described only with the above embodiments, and the structure, location and connection of each component can be changed. Based on the technical solution of the present invention, any improvement or equivalent transformation of individual components based on the principle of the present invention should not be excluded from the protection scope of the present 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 sleeved from the inside to the outside; The non-metallic inner tube comprises, from the inside to the outside, an organic hydrogen barrier coating, a composite fiber lining tube and a barrier layer; The non-metallic fiber reinforcement layer is composed of a fiber prepreg winding layer and a reinforcing rib layer from the inside to the outside; The non-metallic inner tube and the non-metallic fiber reinforced layer are bonded to each other using thermosetting polyurethane; the non-metallic fiber reinforced layer and the non-metallic outer protective tube are connected in a non-bonded manner.

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

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 liner pipe, the reinforcing rib layer and the non-metallic outer protective pipe 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 any one of claims 1 to 3, 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 10-100 μm.

5. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to any one of claims 1 to 4, characterized in that: The barrier layer comprises an adhesive matrix layer and hydrogen barrier powder particles dispersed in the adhesive matrix layer; The bonding substrate layer is made of polyethylene amine resin material, and the hydrogen-blocking powder particles are concave particles made of hydrogen-blocking materials; The thickness of the barrier layer is 0.1-500 μm.

6. The non-metallic composite hydrogen transport hose with 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 multi-form hydrogen barrier layer according to claim 5 or 6, characterized in that: In the cross section of the bonding matrix layer, the hydrogen barrier powder is arranged in parallel with a staggered half or one length of the hydrogen barrier powder along the axial direction, and the hydrogen permeability of the hydrogen barrier powder is less than 3.5×10 -9 mol·m / m 2 ·s·MPa.

8. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to any one of claims 1 to 7, characterized in that: The fiber prepreg winding layer is a multi-layer structure, the winding angle is 60-80°, and the number of layers is 3-6; The fiber prepreg winding layer is made of at least one material selected from the group consisting of polyester fiber, aramid fiber and glass fiber.

9. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to any one of claims 1 to 8, characterized in that: In the non-metallic fiber reinforced layer, the reinforcing rib layer is arranged on the outer wall of the fiber prepreg winding layer in two ways: spiral winding or axial winding; The reinforcing rib layer is connected to the outer wall of the fiber prepreg winding layer by an adhesive and is cured by heating.

10. The non-metallic composite hydrogen transport hose with a multi-form hydrogen barrier layer according to any one of claims 1 to 9, characterized in that: The cavity formed between the non-metallic fiber reinforced layer and the non-metallic outer protective tube is filled with liquid having hydrogen absorption function; The liquid with hydrogen absorbing function includes unsaturated silicone resin.

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