Comprehensive umbilical cable for composite hydrogen transmission

Abstract

The invention relates to the technical field of hydrogen transmission equipment, and provides a composite umbilical cable for composite hydrogen transmission, which comprises a hydrogen transmission pipe, a sheath protection layer, a functional pipeline and a filler. The hydrogen conveying pipe is used for conveying hydrogen. The sheath protection layer is arranged on the outer side of the hydrogen conveying pipe in a sleeving mode, and an installation cavity is formed between the sheath protection layer and the hydrogen conveying pipe. A functional pipeline and filler are arranged in the mounting cavity, the functional pipeline extends in the axial direction of the hydrogen conveying pipe, and the filler is filled between the functional pipeline and the cavity wall of the mounting cavity. According to the comprehensive umbilical cable for composite hydrogen transmission, the hydrogen transmission pipe is arranged in the cable to transmit hydrogen, the functional pipeline is arranged on the outer side of the hydrogen transmission pipe, the functional pipeline is a pipeline of a matched system, the pipeline arrangement of the hydrogen transmission pipe and the matched system can be completed only through one-time construction laying, the construction efficiency can be effectively improved, and the laying cost can be reduced; the problems that in the prior art, pipelines of a matching system for pipeline hydrogen transportation are difficult to lay, and the laying cost is high are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen transmission equipment, and in particular to an integrated umbilical cable for composite hydrogen transmission. Background Art

[0002] In the prior art, hydrogen is widely used as a chemical raw material gas in the fields of petroleum refining, synthetic ammonia, etc. At the same time, hydrogen energy is also an important clean energy. The transportation methods of hydrogen mainly include short-distance long-tube trailers, tank trucks and long-distance pipeline transportation. Pipeline hydrogen transportation has the advantages of large volume, safety and high efficiency. In the related technology, pipeline hydrogen transportation usually adopts two types of hydrogen pipelines: one, large outer diameter / rigid pipeline, single function and low anti-permeability performance; two, small diameter flexible pipeline combined with limited functional units, with small transportation flow.

[0003] When transporting hydrogen via long-distance pipelines, supporting control, power, and monitoring systems are also required. These systems have numerous pipelines, are difficult to lay, and have high costs. Summary of the invention

[0004] The present invention provides an integrated umbilical cable for composite hydrogen transmission, which is used to solve the defects of difficult pipeline laying and high laying cost of the supporting system of pipeline hydrogen transmission in the prior art.

[0005] The present invention provides an integrated umbilical cable for composite hydrogen transmission, comprising: A hydrogen delivery pipe, which is used to deliver hydrogen; A sheath protective layer, wherein the sheath protective layer is sleeved on the outside of the hydrogen transmission pipe, and an installation cavity is formed between the sheath protective layer and the hydrogen transmission pipe; A functional pipeline and a filler are arranged in the installation cavity. The functional pipeline extends along the axial direction of the hydrogen transmission pipe, and the filler is filled between the functional pipeline and the cavity wall of the installation cavity.

[0006] According to the composite umbilical cable for hydrogen transmission of the present invention, the functional pipeline includes one or more of a high-voltage cable, a low-voltage cable, a stranded wire, a hydraulic pipe, and an optical fiber.

[0007] According to the composite umbilical cable for hydrogen transmission of the present invention, when the functional pipeline includes a high-voltage cable, the three-phase cables of the high-voltage cable are arranged at intervals along the circumference of the installation cavity, and the angle between the central axis of two adjacent phase cables and the perpendicular line to the central axis of the hydrogen transmission pipe is 120°.

[0008] According to the composite umbilical cable for hydrogen transmission of the present invention, when there are multiple functional pipelines, the multiple functional pipelines are circumferentially surrounded on the outside of the hydrogen transmission pipe, and the multiple functional pipelines are arranged in a single layer.

[0009] According to the integrated umbilical cable for composite hydrogen transmission of the present invention, a plurality of partitions are arranged in the installation cavity, and the plurality of partitions divide the installation cavity into a plurality of sub-installation cavities; a plurality of the functional pipelines are installed in the sub-installation cavities in a one-to-one correspondence, and each of the sub-installation cavities and the corresponding functional pipelines are filled with the filler.

[0010] According to the integrated umbilical cable for composite hydrogen transmission of the present invention, an installation hole adapted to the corresponding functional pipeline is formed in the filler in each of the sub-installation cavities, and the installation hole is used to accommodate the functional pipeline.

[0011] According to the composite umbilical cable for hydrogen transmission of the present invention, the hydrogen transmission pipe is a nylon anti-permeation material pipe.

[0012] According to the composite umbilical cable for hydrogen transmission of the present invention, a reinforcement layer is further provided on the outside of the hydrogen transmission pipe, and the reinforcement layer includes a first carbon fiber layer, a metal layer, and a second carbon fiber layer; The first carbon fiber layer covers the outside of the hydrogen transmission pipe, and the first carbon fiber layer is formed by wrapping a carbon fiber tape; the metal layer covers the outside of the first carbon fiber layer; the second carbon fiber layer covers the outside of the metal layer, and the second carbon fiber layer is formed by wrapping a carbon fiber tape.

[0013] According to the composite umbilical cable for hydrogen transmission of the present invention, a plastic waterproof sealing layer is further provided on the outer side of the reinforcement layer.

[0014] According to the composite umbilical cable for hydrogen transmission of the present invention, the sheath protective layer comprises a bundle layer, a metal wire layer and an outer sheath layer; The wrapping tape layer covers the side of the filler away from the hydrogen transmission pipe; the metal wire layer covers the wrapping tape layer, and the metal wire layer is formed by winding a plurality of metal wires around the wrapping tape layer; the outer sheath layer covers the metal wire layer and fills the gaps between the plurality of metal wires.

[0015] The composite hydrogen transmission integrated umbilical cable of the present invention is provided with a hydrogen transmission pipe inside the cable to transport hydrogen, and a functional pipeline is laid on the outside of the hydrogen transmission pipe. The functional pipeline is the pipeline of the supporting system, and only one construction and laying is required to complete the laying of the hydrogen transmission pipe and the pipeline of the supporting system, which can effectively improve the construction efficiency and reduce the laying cost, and effectively solve the problem of difficult laying of the pipeline of the supporting system of pipeline hydrogen transmission in the prior art and high laying cost. At the same time, the outer cover of the functional pipeline is provided with a sheath protective layer, and the gap between the sheath protective layer, the hydrogen transmission pipe and the functional pipeline is filled with a filler. The sheath protective layer can cooperate with the filler to fix and protect the hydrogen transmission pipe and the functional pipeline, thereby improving the compressive performance of the entire composite hydrogen transmission integrated umbilical cable, so that the composite hydrogen transmission integrated umbilical cable can meet the long-distance transmission requirements in a high-pressure environment.

[0016] Furthermore, structures such as the sheath protective layer and filler can improve the compressive performance of the hydrogen transmission pipe, so that flexible pipes with larger outer diameters can be used as hydrogen transmission pipes, thereby increasing the transmission flow rate and reducing the loss of hydrogen during the transportation process. At the same time, the hydrogen transmission pipe and various functional pipelines are integrated, and only one construction and installation is required to meet the needs of various systems. The laying is simple and the cost is low.

[0017] Furthermore, the functional pipelines can be combined arbitrarily according to actual needs, and the number of each functional pipeline can be one or more. Through the integration of functional pipelines and hydrogen transmission pipes, the transmission requirements of all complex systems can be met through a composite hydrogen transmission umbilical cable, which is conducive to reducing the workload and cost of laying cables.

[0018] Specifically, the functional pipeline may include high-voltage cables and low-voltage cables, which can realize the shared transmission of hydrogen and electricity over long distances.

[0019] Furthermore, the three-phase cables of the high-voltage cable are evenly spaced around the hydrogen transmission pipe so as to effectively reduce the electromagnetic distribution density of the integrated umbilical cable for composite hydrogen transmission and avoid local heating.

[0020] Furthermore, the hydrogen transmission pipe is a nylon anti-permeation material pipe, which can enhance the anti-permeation performance of the umbilical cable, thereby effectively reducing the loss of hydrogen during the transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of an integrated umbilical cable for composite hydrogen transmission provided in an embodiment of the present invention.

[0023] Reference numerals: 1. Integrated umbilical cable for composite hydrogen transmission; 11. Hydrogen transmission pipe; 12. Sheath protective layer; 13. Functional pipelines; 131. High-voltage cables; 132. Low-voltage cables; 133. Stranded wires; 134. Hydraulic pipes; 135. Optical fibers; 14. Filling; 15. partition; 16. reinforcement layer; 161. first carbon fiber layer; 162. metal layer; 163. second carbon fiber layer. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Combine the following Figure 1 The composite umbilical cable for hydrogen transmission of the present invention is described.

[0026] like Figure 1 As shown, the present invention provides an integrated umbilical cable 1 for composite hydrogen transmission, comprising: a hydrogen transmission pipe 11, a sheath protective layer 12, a functional pipeline 13 and a filler 14. The hydrogen transmission pipe 11 is used to transport hydrogen. The sheath protective layer 12 is sleeved on the outside of the hydrogen transmission pipe 11, and an installation cavity is formed between the sheath protective layer 12 and the hydrogen transmission pipe 11. The functional pipeline 13 and the filler 14 are arranged in the installation cavity, and the functional pipeline 13 extends along the axial direction of the hydrogen transmission pipe 11, and the filler 14 is filled between the functional pipeline 13 and the cavity wall of the installation cavity.

[0027] In this embodiment, the hydrogen transmission pipe 11 is used to transport hydrogen. It is understandable that the wall of the hydrogen transmission pipe 11 can be made of anti-leakage material to reduce or avoid leakage loss of hydrogen when it is transported in the hydrogen transmission pipe 11. The outer side of the hydrogen transmission pipe 11 is provided with a sheath protective layer 12. It is understandable that the sheath protective layer 12 of this embodiment is not directly attached to the outer peripheral wall of the hydrogen transmission pipe 11, but there is a certain gap between the outer peripheral wall of the hydrogen transmission pipe 11, so that an installation cavity is formed between the hydrogen transmission pipe 11 and the sheath protective layer 12, and the installation cavity is used to accommodate the functional pipeline 13. It is understandable that the functional pipeline 13 is a pipeline of a supporting system for hydrogen transmission, such as a cable, an infusion pipeline, etc. At the same time, by filling the filler 14 between the functional pipeline 13 and the wall of the installation cavity, the filler 14 can be used to fix the functional pipeline 13 and support the sheath protective layer 12, so as to prevent the functional pipeline 13 from being suspended in the installation cavity and shaking or bumping in the installation cavity. In addition, the sheath protective layer 12 can cooperate with the filler 14 to provide pressure protection for the hydrogen transmission pipe 11 and the functional pipeline 13, thereby improving the pressure bearing capacity of the composite umbilical cable 1 for composite hydrogen transmission, and making the composite umbilical cable 1 for composite hydrogen transmission suitable for deep-sea high-pressure environment.

[0028] The composite hydrogen transmission integrated umbilical cable 1 of the present invention is provided with a hydrogen transmission pipe 11 inside the cable to transport hydrogen, and a functional pipeline 13 is laid on the outside of the hydrogen transmission pipe 11. The functional pipeline 13 is the pipeline of the supporting system, and only one construction and laying is required to complete the laying of the hydrogen transmission pipe 11 and the pipeline of the supporting system, which can effectively improve the construction efficiency and reduce the laying cost, and effectively solve the problems of difficult pipeline laying and high laying cost of the supporting system of pipeline hydrogen transmission in the prior art. At the same time, the outer cover of the functional pipeline 13 is provided with a sheath protective layer 12, and the gap between the sheath protective layer 12, the hydrogen transmission pipe 11 and the functional pipeline 13 is filled with a filler 14. The sheath protective layer 12 can cooperate with the filler 14 to fix and protect the hydrogen transmission pipe 11 and the functional pipeline 13, thereby improving the compressive performance of the entire composite hydrogen transmission integrated umbilical cable 1, so that the composite hydrogen transmission integrated umbilical cable 1 can meet the long-distance transportation requirements in a high-pressure environment. It can be understood that the sheath protective layer 12, filler 14 and other structures can improve the compressive performance of the hydrogen transmission pipe 11, so that a flexible pipe with a larger outer diameter can be used as the hydrogen transmission pipe 11, thereby increasing the transmission flow rate and reducing the loss of hydrogen during the transportation process. At the same time, the hydrogen transmission pipe 11 and various functional pipelines 13 are integrated, and only one construction and installation are required to meet the needs of various systems. The laying is simple and the cost is low.

[0029] It is understandable that the number of functional pipelines 13 and the function of each functional pipeline 13 can be arranged according to specific usage requirements.

[0030] In some embodiments, Figure 1 As shown, the functional pipeline 13 includes one or more of a high-voltage cable 131 , a low-voltage cable 132 , a stranded wire 133 , a hydraulic pipe 134 , and an optical fiber 135 .

[0031] In this embodiment, the functional pipeline 13 may include one or more pipelines to achieve the supporting function of hydrogen transportation.

[0032] Specifically, the high-voltage cable 131 is mainly used for long-distance power transmission. By providing the high-voltage cable 131, it is possible to achieve long-distance shared transmission of hydrogen and electric energy, and reduce hydrogen loss during long-distance transmission. Specifically, the composite hydrogen transmission integrated umbilical cable 1 of the present invention can be used for shared transmission of hydrogen and electric energy at sea, reducing transportation costs and losses.

[0033] The low-voltage cable 132 is mainly used to transmit low-voltage electrical signals, which can be used to transmit control instructions, etc.

[0034] The stranded wire 133 is usually a metal wire, and the stranded wire 133 can be used as a load-bearing structure in the composite umbilical cable 1 for hydrogen transmission to enhance the compressive performance of the composite umbilical cable 1 for hydrogen transmission.

[0035] The hydraulic pipe 134 can be used to transport liquids. Specifically, the hydraulic pipe 134 can be connected to the valve on the hydrogen pipe 11 to control the opening and closing of the valve through hydraulic pressure. Alternatively, the hydraulic pipe 134 can also be used to transport chemicals or fuels required during the operation and maintenance of the transportation equipment, such as rust remover, diesel, alcohol, etc.

[0036] The optical fiber 135 is used to transmit optical signals. It should be noted that the optical signals transmitted by the optical fiber 135 can be used as information carriers for information transmission and can also be used to monitor the shape changes and temperature changes of the composite hydrogen transmission integrated umbilical cable 1. Specifically, the transmitting end of the optical fiber 135 transmits an optical signal of a specific waveform through the optical fiber 135, and the receiving end of the optical fiber 135 is provided with a monitoring device, which can receive the optical signal and feedback the linear changes and temperature changes of the composite hydrogen transmission integrated umbilical cable 1 according to the waveform changes of the optical signal, so that the staff can detect the operation of the composite hydrogen transmission integrated umbilical cable 1, find the abnormal operation points in time and take corresponding maintenance measures. Since the optical fiber 135 is small in size and light in weight, it is convenient to lay it out, and it will not have a significant impact on the size of the composite hydrogen transmission integrated umbilical cable 1; the transmission speed of the optical signal in the optical fiber 135 is fast, so that the linear shape and temperature changes of the composite hydrogen transmission integrated umbilical cable 1 can be monitored in real time, so that the staff can find the abnormality of the composite hydrogen transmission integrated umbilical cable 1 in time and take corresponding maintenance measures.

[0037] It is understandable that the above functional pipelines 13 can be combined arbitrarily according to actual needs, and the number of each functional pipeline 13 can be one or more. Through the integration of the functional pipelines 13 and the hydrogen transmission pipe 11, the transmission requirements of all complex systems can be achieved through a composite hydrogen transmission integrated umbilical cable 1, which is conducive to reducing the workload and cost of laying cables.

[0038] In some embodiments, Figure 1 As shown, when the functional pipeline 13 includes a high-voltage cable 131, the three-phase cables of the high-voltage cable 131 are arranged at intervals along the circumference of the installation cavity, and the angle between the central axis of two adjacent phase cables and the perpendicular line to the central axis of the hydrogen transmission pipe 11 is 120°.

[0039] In this embodiment, when the functional pipeline 13 includes a high-voltage cable 131, since the high-voltage cable 131 includes at least a three-phase cable, the three-phase cable is evenly and spacedly arranged along the circumference of the installation cavity. The magnetic fields generated around the three-phase cables can offset each other near the middle of the hydrogen transmission pipe 11, so as to effectively reduce the electromagnetic distribution density of the composite umbilical cable 1 for hydrogen transmission, reduce the concentrated heating caused by the electromagnetic field at the position of the hydrogen transmission pipe 11, and avoid the local temperature in the composite umbilical cable 1 for hydrogen transmission being too high due to the concentrated heating caused by the electromagnetic field of the high-voltage cable 131, thereby affecting the normal operation and service life of the cable.

[0040] In a specific embodiment, Figure 1 As shown, the functional pipeline 13 includes two high-voltage cables 131, and the three-phase cables of the two high-voltage cables 131 are arranged alternately in the installation cavity, so that the angle between the central axis of the adjacent two-phase cables of the same high-voltage cable 131 and the vertical line of the central axis of the hydrogen transmission pipe 11 is 120°.

[0041] In some embodiments, when there are multiple functional pipelines 13 , the multiple functional pipelines 13 are circumferentially surrounded by the outer side of the hydrogen transmission pipe 11 , and the multiple functional pipelines 13 are arranged in a single layer.

[0042] In this embodiment, there are multiple functional pipelines 13. It is understandable that the multiple functional pipelines 13 may include multiple pipelines of the same type or multiple pipelines, which can be adjusted according to the application scenario and use requirements of the composite hydrogen transmission integrated umbilical cable 1. The multiple functional pipelines 13 are arranged in a single layer around the outer side of the hydrogen transmission pipe 11, which is conducive to reducing the radial size of the entire composite hydrogen transmission integrated umbilical cable 1, and the structure is more compact and reliable.

[0043] In some embodiments, Figure 1 As shown, a plurality of partitions 15 are arranged in the installation cavity, and the plurality of partitions 15 divide the installation cavity into a plurality of sub-installation cavities. A plurality of functional pipelines 13 are installed in the sub-installation cavities in a one-to-one correspondence, and a filler 14 is filled between each sub-installation cavity and the corresponding functional pipeline 13 .

[0044] In this embodiment, by arranging multiple partitions 15 in the installation cavity to divide the installation cavity into multiple independent sub-installation cavities, multiple functional pipelines 13 can be installed one by one in each sub-installation cavity, which makes it more convenient for installers to install each functional pipeline 13 in the installation cavity and also facilitates the arrangement of the functional pipelines 13. Each sub-installation cavity is filled with a filler 14 to fix the functional pipeline 13 in the sub-installation cavity to prevent the functional pipeline 13 from shaking or bumping.

[0045] It should be noted that the number and types of functional pipelines 13 can be adjusted according to actual needs, and the number of functional pipelines 13 may not be sufficient to fill all sub-installation cavities; when the number of functional pipelines 13 is less than the number of sub-installation cavities, the sub-installation cavity where no functional pipeline 13 is installed can be completely filled with fillers 14 to ensure uniform mass distribution in the entire installation cavity and uniform support for the outer sheath protective layer 12.

[0046] Specifically, in some embodiments, Figure 1 As shown, a mounting hole adapted to the corresponding functional pipeline 13 is formed in the filler 14 in each sub-mounting cavity, and the mounting hole is used to accommodate the functional pipeline 13.

[0047] In this embodiment, by setting a mounting hole adapted to the functional pipeline 13 in the filler 14 and installing the functional pipeline 13 in the mounting hole, the filler 14 can better contact the functional pipeline 13 and limit and fix the functional pipeline 13, thereby better preventing the functional pipeline 13 from shaking and bumping.

[0048] Optionally, in some embodiments, the aperture of the mounting hole may be slightly larger than the outer diameter of the corresponding functional pipeline 13 (for example, the aperture of the mounting hole may be 10% larger than the corresponding functional pipeline 13), so that the functional pipeline 13 can have a certain degree of freedom in the mounting hole and can shake slightly but not shake or bump too much.

[0049] In some embodiments, the hydrogen delivery pipe 11 is a nylon anti-permeation material pipe, which can effectively prevent the hydrogen in the hydrogen delivery pipe 11 from leaking outward, thereby effectively reducing the loss of hydrogen during the transportation process.

[0050] Specifically, a PA-11 nylon tube or a PA-12 nylon tube may be used.

[0051] In some embodiments, Figure 1 As shown, a reinforcing layer 16 is also provided on the outside of the hydrogen transmission pipe 11, and the reinforcing layer 16 includes a first carbon fiber layer 161, a metal layer 162 and a second carbon fiber layer 163. The first carbon fiber layer 161 covers the outside of the hydrogen transmission pipe 11, and the first carbon fiber layer 161 is formed by wrapping a carbon fiber tape. The metal layer 162 covers the outside of the first carbon fiber layer 161. The second carbon fiber layer 163 covers the outside of the metal layer 162, and the second carbon fiber layer 163 is formed by wrapping a carbon fiber tape.

[0052] In the present embodiment, a reinforcement layer 16 is provided on the outside of the hydrogen transmission pipe 11. The reinforcement layer 16 includes a first carbon fiber layer 161, a metal layer 162 and a second carbon fiber layer 163 stacked from the inside to the outside. The two carbon fiber layers and the metal layer 162 therebetween can form a reinforced skeleton structure, thereby supporting and reinforcing the hydrogen transmission pipe 11, improving the pressure bearing capacity of the hydrogen transmission pipe 11, and meeting the performance requirements of deep-sea long-distance hydrogen transmission.

[0053] Specifically, the reinforcement layer 16 can be coated on the outside of the nylon anti-permeation material tube to strengthen the structural strength of the nylon anti-permeation material tube and improve the pressure bearing capacity on both sides of the tube.

[0054] In some embodiments, a plastic waterproof sealing layer is further provided on the outer side of the reinforcement layer 16 .

[0055] In this embodiment, a plastic waterproof sealing layer is coated on the outside of the reinforcing layer 16, which can effectively prevent water from penetrating into the hydrogen transmission pipe 11 and affecting the quality of hydrogen in the hydrogen transmission pipe 11; at the same time, the plastic waterproof sealing layer also has the characteristics of wear resistance and corrosion resistance, which can effectively prevent the outer layer of the hydrogen transmission pipe 11 from corrosion and wear, so as to meet the performance requirements of deep-sea long-distance hydrogen transmission.

[0056] In some embodiments, the sheath protective layer 12 includes a wrapping tape layer, a metal wire layer and an outer sheath layer. The wrapping tape layer covers the side of the filler 14 away from the hydrogen transmission pipe 11. The metal wire layer covers the wrapping tape layer, and the metal wire layer is formed by winding a plurality of metal wires around the wrapping tape layer. The outer sheath layer covers the metal wire layer and fills the gaps between the plurality of metal wires.

[0057] In this embodiment, a sheath protective layer 12 is arranged outside the filler 14, and the sheath protective layer 12 includes a bundle layer, a metal wire layer and an outer sheath layer stacked from the inside to the outside. The bundle layer can cooperate with the metal wire layer to form a load-bearing structure outside the installation cavity, which is used to maintain the shape of the composite hydrogen transmission integrated umbilical cable 1 and enhance the compressive performance of the composite hydrogen transmission integrated umbilical cable 1 to meet the demand for deep-sea long-distance hydrogen transmission. Furthermore, the outer sheath layer is coated with an outer sheath layer on the outside of the metal wire layer, and the outer sheath layer can play a role in waterproofing and corrosion resistance. At the same time, the outer sheath layer can fill the gaps between the metal wires of the metal wire layer, and further enhance the structural strength of the metal wire layer.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A composite umbilical cable for hydrogen transmission, characterized in that: include: A hydrogen delivery pipe, which is used to deliver hydrogen; A sheath protective layer, wherein the sheath protective layer is sleeved on the outside of the hydrogen transmission pipe, and an installation cavity is formed between the sheath protective layer and the hydrogen transmission pipe; A functional pipeline and a filler are arranged in the installation cavity. The functional pipeline extends along the axial direction of the hydrogen transmission pipe, and the filler is filled between the functional pipeline and the cavity wall of the installation cavity.

2. The integrated umbilical cable for composite hydrogen transmission according to claim 1, characterized in that: The functional pipelines include one or more of high-voltage cables, low-voltage cables, stranded wires, hydraulic pipes, and optical fibers.

3. The integrated umbilical cable for composite hydrogen transmission according to claim 2, characterized in that: When the functional pipeline includes a high-voltage cable, the three-phase cables of the high-voltage cable are arranged at intervals along the circumference of the installation cavity, and the angle between the central axis of two adjacent phase cables and the perpendicular line to the central axis of the hydrogen transmission pipe is 120°.

4. The integrated umbilical cable for composite hydrogen transmission according to any one of claims 1 to 3, characterized in that: In the case where there are multiple functional pipelines, the multiple functional pipelines are circumferentially surrounded by the outer side of the hydrogen transmission pipe, and the multiple functional pipelines are arranged in a single layer.

5. The integrated umbilical cable for composite hydrogen transmission according to claim 4, characterized in that: A plurality of partitions are arranged in the installation cavity, and the plurality of partitions divide the installation cavity into a plurality of sub-installation cavities; a plurality of functional pipelines are installed in the sub-installation cavities in a one-to-one correspondence, and each sub-installation cavity and the corresponding functional pipeline are filled with the filler.

6. The integrated umbilical cable for composite hydrogen transmission according to claim 5, characterized in that: A mounting hole adapted to the corresponding functional pipeline is formed in the filler in each of the sub-mounting cavities, and the mounting hole is used to accommodate the functional pipeline.

7. The integrated umbilical cable for composite hydrogen transmission according to claim 1, characterized in that: The hydrogen delivery pipe is a nylon anti-permeation material pipe.

8. The integrated umbilical cable for composite hydrogen transmission according to claim 1, characterized in that: The outer side of the hydrogen transmission pipe is also provided with a reinforcement layer, which includes a first carbon fiber layer, a metal layer and a second carbon fiber layer; The first carbon fiber layer covers the outside of the hydrogen transmission pipe, and the first carbon fiber layer is formed by wrapping a carbon fiber tape; the metal layer covers the outside of the first carbon fiber layer; the second carbon fiber layer covers the outside of the metal layer, and the second carbon fiber layer is formed by wrapping a carbon fiber tape.

9. The integrated umbilical cable for composite hydrogen transmission according to claim 8, characterized in that: A plastic waterproof sealing layer is also provided on the outer side of the reinforcement layer.

10. The integrated umbilical cable for composite hydrogen transmission according to claim 1, characterized in that: The sheath protective layer comprises a wrapping tape layer, a metal wire layer and an outer sheath layer; The wrapping tape layer covers the side of the filler away from the hydrogen transmission pipe; the metal wire layer covers the wrapping tape layer, and the metal wire layer is formed by winding a plurality of metal wires around the wrapping tape layer; the outer sheath layer covers the metal wire layer and fills the gaps between the plurality of metal wires.

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