Optical storage straight flexible cable with corrosion-resistant effect and protection structure thereof

Abstract

The invention discloses an optical storage straight flexible cable with a corrosion-resistant effect and a protection structure thereof, and particularly relates to the technical field of optical storage straight flexible, the optical storage straight flexible cable comprises a photovoltaic power generation mechanism, the photovoltaic power generation mechanism comprises an annular floating body pipe floating on the water surface, and a high-elastic film is arranged on the inner ring of the annular floating body pipe; a plurality of photovoltaic panels are uniformly laid on the high-elastic film; an installation ring is concentrically arranged on the annular floating body pipe, the installation ring and the annular floating body pipe are arranged in parallel, a protection mechanism is arranged on the installation ring, and the protection mechanism comprises a plurality of protection sleeves fixedly installed on the installation ring. According to the invention, by arranging the protection structure, when the high-elastic film fluctuates up and down along with waves, the cable between the photovoltaic panel and the mounting ring can be limited in the protection sleeve to swing in a small range, so that the deformation amplitude of the cable is effectively reduced, and the service life of the cable is remarkably prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of optical storage, direct current, and flexible technology. More specifically, the present invention relates to an optical storage, direct current, and flexible cable with corrosion resistance and its protection structure. Background Art

[0002] The optical storage, direct current, and flexible system is a new type of comprehensive energy utilization system that combines photovoltaic power generation, energy storage, direct current power distribution, and flexible control technologies, aiming to achieve efficient energy utilization, flexible scheduling, and low carbonization. Among them, the photovoltaic power station is the core component of the optical storage, direct current, and flexible system, and generates electricity through large-scale photovoltaic panels.

[0003] Since the floor area of the photovoltaic panels is large, but the land area suitable for building photovoltaic power stations is limited, marine photovoltaic power generation projects have gradually been carried out. For example, the deep-sea and far-sea floating photovoltaic power generation project uses annular pipe fittings assembled from high-density polyethylene (HDPE) prefabricated pipe fittings as floating body units, and sets 4 mooring points and multiple cables on the outer side of the floating body unit to be anchored to the seabed, which greatly improves the stability of the floating body. A high-strength elastic film (thickness 0.3 - 0.5 mm) is laid in the middle of the floating body to directly contact seawater and vertically fluctuate with the waves (amplitude ±0.5 m). Then, customized photovoltaic modules are connected to the film through prefabricated connectors, and the cables connected to the photovoltaic modules are tied around the floating body and finally transported to the energy storage station through submarine cables. By utilizing the cooling effect of the water body, the operating temperature of the photovoltaic modules can be reduced by 5 - 10°C, and the power generation efficiency can be increased by more than 10%.

[0004] In order to effectively utilize the cooling effect of seawater, the film needs to always maintain the largest possible contact area with seawater. Therefore, the film will fluctuate synchronously with the waves, and the photovoltaic modules installed on the film will also fluctuate synchronously. At this time, the cables on the photovoltaic modules and the connection segments tied to the floating body will continuously swing, bend, and stretch due to the large fluctuation difference between the floating body and the film. Large-amplitude deformations occurring at high frequencies for a long time will seriously reduce the service life of the cables, thereby significantly reducing the overall service life of the equipment. Summary of the Invention

[0005] An optical storage, direct current, and flexible cable with corrosion resistance and its protection structure provided by the present invention aims to solve the problem that the cables on the existing photovoltaic modules and the connection segments tied to the floating body will continuously swing, bend, and stretch due to the large fluctuation difference between the floating body and the film. Large-amplitude deformations occurring at high frequencies for a long time will seriously reduce the service life of the cables, thereby significantly reducing the overall service life of the equipment.

[0006] To achieve the above object, the present invention provides the following technical solution: A protection structure for a photovoltaic energy storage direct-current flexible cable with corrosion resistance, comprising: a photovoltaic power generation mechanism, the photovoltaic power generation mechanism includes an annular floating tube floating on the water surface, a high-elastic film is arranged on the inner circle of the annular floating tube, and a plurality of photovoltaic panels are evenly laid on the high-elastic film; An installation ring is concentrically arranged on the annular floating tube, the installation ring is arranged parallel to the annular floating tube, and a protection mechanism is arranged on the installation ring. The protection mechanism includes a plurality of protection sleeves fixedly installed on the installation ring, and both ends of the protection sleeve are open. One section of cable is arranged at both ends of the protection sleeve, and the two sections of cable are connected to each other at the ends close to each other by a cable. The cable is located inside the cable, and one section of the two sections of cable close to the high-elastic film is connected to the corresponding photovoltaic panel, and one section of the two sections of cable close to the installation ring is fixedly connected to the installation ring.

[0007] In a preferred embodiment, two protection bags are symmetrically arranged up and down in the protection sleeve. One end of the two protection bags close to the high-elastic film is communicated with the same annular connection bag, and a water pipe is arranged at one end of the two protection bags close to the installation ring, and the water pipe is externally connected with a circulating water supply device.

[0008] In a preferred embodiment, the cable is located in the middle of the two protection bags, and one end of the cable close to the high-elastic film penetrates through the annular connection bag, and the cable is adapted to the protection bag.

[0009] In a preferred embodiment, a plurality of support components are evenly sleeved on the annular floating tube, the support components are fixedly connected to the installation ring, and the support components are used to fixedly arrange the installation ring above the annular floating tube.

[0010] In a preferred embodiment, a plurality of cable fixing seats are evenly arranged on the high-elastic film, and one section of the cable connected to the photovoltaic panel is fixedly connected to the corresponding cable fixing seat.

[0011] In a preferred embodiment, a plurality of fixing rings are sleeved on the annular floating tube, a connecting rod is arranged on the fixing ring, and the connecting rod is fixedly connected to the corresponding protection sleeve.

[0012] In a preferred embodiment, a plurality of cable fixing clips are sleeved on the installation ring, and the cable fixing clips are fixedly connected to one section of the cable close to the installation ring.

[0013] In a preferred embodiment, a plurality of floating cylinders are evenly arranged on the outer side of the annular floating tube.

[0014] In a preferred embodiment, one end of the protection sleeve close to the high-elastic film is inclined downward.

[0015] A photovoltaic energy storage direct current and flexible cable with corrosion resistance effect. Cable 1 includes a conductor, and an insulating layer, a sheath and a corrosion-resistant layer are sequentially arranged on the outer side of the conductor from inside to outside. Cable 1 penetrates through the inside of a protective sleeve.

[0016] The beneficial effects of the present invention are as follows: By setting a protective structure, when the high-elastic film fluctuates up and down with the waves, the cable between the photovoltaic panel and the mounting ring can be restricted to swing slightly within the protective sleeve, thereby effectively reducing the deformation amplitude of the cable, and significantly improving the service life of the cable; By setting a protective bag that can be circularly filled with water, while absorbing the vibration force of the cable and reducing the vibration frequency of the cable, a part of the excess heat generated during the power transmission of the cable is also absorbed and taken away, thereby further improving the overall service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the mounting ring part of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the protection mechanism part of the present invention.

[0020] Figure 4 It is a sectional structural diagram of the protection mechanism part of the present invention.

[0021] Figure 5 It is a sectional structural diagram of Cable 1 and Cable 2 parts of the present invention.

[0022] Reference numerals are: 1, photovoltaic power generation mechanism; 11, annular floating tube; 12, high-elastic film; 13, support assembly; 14, mounting ring; 15, photovoltaic panel; 16, cable fixing seat; 17, fixing ring; 18, connecting rod; 19, cable fixing clip; 2, protection mechanism; 21, protective sleeve; 22, protection bag; 23, water pipe; 24, Cable 1; 241, conductor; 242, insulating layer; 243, sheath; 244, corrosion-resistant layer; 25, Cable 2; 3, floating cylinder. DETAILED DESCRIPTION OF THE INVENTION

[0023] The following further describes the present application in detail with reference to the drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0024] Refer to the attached drawings of the specification Figures 1 to 4, A protective structure for a photovoltaic energy storage direct current flexible cable with corrosion resistance, including: a photovoltaic power generation mechanism 1, the photovoltaic power generation mechanism 1 includes an annular floating tube 11 floating on the water surface, a high-elastic film 12 is arranged inside the annular floating tube 11, and a plurality of photovoltaic panels 15 are evenly laid on the high-elastic film 12; It should be noted that the photovoltaic power generation mechanism 1 is assembled by prefabricated pipe fittings made of high-density polyethylene (HDPE) or other materials with similar functions well-known to those skilled in the art, and the photovoltaic power generation mechanism 1 is hollow, so as to provide a certain supporting force for the whole device; Furthermore, the high-elastic film 12 is a high-strength elastic film, and the high-elastic film 12 is made of high-density polyethylene (HDPE) or other materials with similar functions well-known to those skilled in the art, and a nano anti-fouling coating can be coated on the surface of the high-elastic film 12 to inhibit the attachment of algae and shellfish, so as to significantly extend the cleaning cycle.

[0025] An installation ring 14 is concentrically arranged on the annular floating tube 11, the installation ring 14 is arranged parallel to the annular floating tube 11, a protection mechanism 2 is arranged on the installation ring 14, the protection mechanism 2 includes a plurality of protection sleeves 21 fixedly installed on the installation ring 14, and both ends of the protection sleeve 21 are open, and a section of cable one 24 is arranged at both ends of the protection sleeve 21. The ends of the two sections of cable one 24 close to each other are connected with a cable two 25. The cable two 25 is located inside the cable one 24. One section of the two sections of cable one 24 close to the high-elastic film 12 is communicated with the corresponding photovoltaic panel 15, and one section of the two sections of cable one 24 close to the installation ring 14 is fixedly connected with the installation ring 14.

[0026] It should be noted that the installation ring 14 is located above the annular floating tube 11, and the installation ring 14 is also a hollow annular tube with the same material as the annular floating tube 11; the cable two 25 is an elastic wire harness cable, and the cable two 25 is connected with the two sections of cable one 24 into an integral cable line. The telescopic range of the cable two 25 matches the fluctuation range of the high-elastic film 12 and a certain redundant space is reserved.

[0027] In this embodiment, the implementation scenario is specifically: the other end of a section of cable one 24 connected to the photovoltaic panel 15 extends into the corresponding protection sleeve 21, and a section of cable one 24 close to the installation ring 14 is fixed on the installation ring 14. Due to the setting of the cable two 25, when the high-elastic film 12 and the photovoltaic panel 15 fluctuate up and down with the waves, only small fluctuations will occur in the cable one 24 and the cable two 25 inside the protection sleeve 21, thus effectively reducing the deformation amplitude of the cable one 24 and the cable two 25, and then significantly improving the service life of the cable one 24 and the cable two 25.

[0028] Refer to the instruction manual appendix Figure 3 andFigure 4 , in this embodiment, two protective bags 22 are symmetrically arranged up and down inside the protective sleeve 21. One end of the two protective bags 22 close to the high-elastic film 12 is communicated with the same annular connecting bag, and one water pipe 23 is arranged at one end of the two protective bags 22 close to the mounting ring 14. The water pipe 23 is externally connected with a circulating water supply device.

[0029] It should be noted that the cross-section of the protective bag 22 is a semi-annular shape, and the inner diameter of its inner circle is larger than the overall diameter of the cable two 25. By connecting the upper and lower two protective bags 22 to the same annular connecting bag, the two protective bags 22 are communicated, which is similar to folding a water pipe once. One water pipe 23 is connected to one end of the two protective bags 22 far from the annular connecting bag. The water pipe 23 located above is the input end, and the water pipe 23 located below is the output end. The circulating water supply device connected to the water pipe 23 can pump seawater into the protective bag 22 for circulation. Through the seawater circulating in the protective bag 22, a large part of the heat generated by the cable one 24 and the cable two 25 can be absorbed and taken away, thereby further improving the service life of the equipment.

[0030] Refer to the attached drawings of the specification Figure 3 and Figure 4 , in this embodiment, the cable two 25 is located in the middle position between the two protective bags 22, and one end of the cable two 25 close to the high-elastic film 12 penetrates through the annular connecting bag, and the cable two 25 is adapted to the protective bag 22.

[0031] It should be noted that the annular connecting bag is circular, and there is a perforation in the middle through which the cable one 24 and the cable two 25 can pass. The protective bag 22 filled with water can absorb part of the vibration of the cable one 24 and the cable two 25 when the cable one 24 and the cable two 25 vibrate, and thus effectively reduces the deformation frequency of the cable one 24 and the cable two 25.

[0032] Refer to the attached drawings of the specification Figure 1 and Figure 2 , in this embodiment, a plurality of support components 13 are evenly sleeved on the annular floating tube 11. The support components 13 are fixedly connected with the mounting ring 14, and the support components 13 are used to fixedly arrange the mounting ring 14 above the annular floating tube 11.

[0033] It should be noted that the support components 13, the annular floating tube 11 and the mounting ring 14 are all detachably connected, and can be connected by bolts or other quick connectors, which is a well-known and mature technology for those skilled in the art and will not be elaborated in this embodiment.

[0034] Refer to the attached drawings of the specification Figure 1 and Figure 2, in this embodiment, a plurality of cable fixing seats 16 are uniformly arranged on the high-elastic film 12, and a section of cable one 24 connected to the photovoltaic panel 15 is fixedly connected to the corresponding cable fixing seat 16.

[0035] It should be noted that a plurality of photovoltaic panels 15 are arranged in series. Each string contains dozens or more photovoltaic panels 15, which can be adjusted according to the actual situation. And each string is connected to the busbar box by a single group of cable one 24. One end of the single group of cable one 24 can be fixed on the high-elastic film 12 through the cable fixing seat 16.

[0036] Refer to the attached drawings of the specification Figure 1 and Figure 2 , in this embodiment, a plurality of fixing rings 17 are sleeved on the annular floating body tube 11, and a connecting rod 18 is arranged on the fixing ring 17. The connecting rod 18 is fixedly connected to the corresponding protective sleeve 21.

[0037] It should be noted that the size of the protective sleeve 21 can be adjusted according to the actual situation. The fixing ring 17 and the connecting rod 18 can jointly support the protective sleeve 21 to improve the stability of the protective sleeve 21.

[0038] Refer to the attached drawings of the specification Figure 1 and Figure 2 , in this embodiment, a plurality of cable fixing clips 19 are sleeved on the mounting ring 14. The cable fixing clip 19 is fixedly connected to a section of cable one 24 close to the mounting ring 14.

[0039] It should be noted that the size specification of the cable fixing clip 19 can be adjusted according to the actual situation, and the cable fixing clip 19 and the mounting ring 14 are detachably connected, and can be connected by bolts or other quick connectors, which is a well-known mature technology in the art and will not be elaborated in this embodiment. Refer to the attached drawings of the specification Figure 1 , in this embodiment, a plurality of floating cylinders 3 are uniformly arranged on the outer side of the annular floating body tube 11.

[0040] It should be noted that the setting of the floating cylinders 3 can effectively improve the overall stability of the equipment.

[0041] Refer to the attached drawings of the specification Figure 1 and Figure 2 , in this embodiment, one end of the protective sleeve 21 close to the high-elastic film 12 is arranged to incline downward.

[0042] It should be noted that the inclination angle of the protective sleeve 21 can be adjusted according to the actual situation to adapt to the fluctuation of the sea waves.

[0043] Refer to the attached drawings of the specification Figure 5, in this embodiment, Cable 1 24 includes a conductor 241. An insulating layer 242, a sheath 243, and a corrosion-resistant layer 244 are sequentially arranged on the outer side of the conductor 241 from the inside out. Cable 1 24 penetrates through the inside of the protective sleeve 21.

[0044] It should be noted that since this device is in the ocean for a long time, the corrosiveness of the seawater environment is significantly stronger than that of the land environment. Therefore, it is necessary to improve the corrosion resistance of Cable 1 24 and Cable 2 25. The corrosion-resistant layer 244 can be made of polyethylene (PE), polyvinyl chloride (PVC), neoprene, or other materials with good corrosion resistance, thereby improving the water resistance, chemical corrosion resistance, and weather resistance of Cable 1 24 and Cable 2 25, and having a good resistance to seawater, salts, acids, alkalis, etc. These materials also have high elasticity and wear resistance, can provide good protection for the cable in the marine environment, and reduce damage caused by friction and vibration.

[0045] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A protective structure for a photovoltaic energy storage DC-AC flexible cable with corrosion resistance effect, comprising: Photovoltaic power generation mechanism (1), the photovoltaic power generation mechanism (1) includes an annular floating body tube (11) floating on the water surface, a high-elastic film (12) is arranged on the inner circle of the annular floating body tube (11), and a plurality of photovoltaic panels (15) are evenly laid on the high-elastic film (12); It is characterized in that an installation ring (14) is concentrically arranged on the annular floating body tube (11), the installation ring (14) is arranged parallel to the annular floating body tube (11), a protection mechanism (2) is arranged on the installation ring (14), the protection mechanism (2) includes a plurality of protection sleeves (21) fixedly installed on the installation ring (14), and both ends of the protection sleeve (21) are open, a section of cable one (24) is arranged at both ends of the protection sleeve (21), and a cable two (25) is connected to the mutually approaching ends of the two sections of cable one (24), the cable two (25) is located inside the cable one (24), and a section of the two sections of cable one (24) close to the high-elastic film (12) is connected to the corresponding photovoltaic panel (15), and a section of the two sections of cable one (24) close to the installation ring (14) is fixedly connected to the installation ring (14).

2. The protective structure of a light storage, DC-to-AC, and flexible cable with corrosion resistance according to claim 1, characterized in that Two protection bags (22) are symmetrically arranged up and down inside the protection sleeve (21), a same annular connection bag is connected to the ends of the two protection bags (22) close to the high-elastic film (12), and a water pipe (23) is arranged at the end of each of the two protection bags (22) close to the installation ring (14), and the water pipe (23) is externally connected to a circulating water supply device.

3. The protective structure of a photovoltaic energy storage DC flexible cable with corrosion resistance according to claim 2, characterized in that, The cable two (25) is located in the middle position between the two protection bags (22), and the end of the cable two (25) close to the high-elastic film (12) penetrates through the annular connection bag, and the cable two (25) is adapted to the protection bag (22).

4. The protective structure of a photovoltaic energy storage DC flexible cable with corrosion resistance according to claim 3, characterized in that, A plurality of support components (13) are evenly sleeved on the annular floating body tube (11), the support components (13) are fixedly connected to the installation ring (14), and the support components (13) are used to fixedly arrange the installation ring (14) above the annular floating body tube (11).

5. The protective structure of a light storage, direct current, flexible cable with corrosion resistance according to claim 4, characterized in that, A plurality of cable fixing seats (16) are evenly arranged on the high-elastic film (12), and a section of cable one (24) connected to the photovoltaic panel (15) is fixedly connected to the corresponding cable fixing seat (16).

6. The protective structure of a light storage, direct current, flexible cable with corrosion resistance according to claim 5, characterized in that, A plurality of fixing rings (17) are sleeved on the annular floating body tube (11), a connecting rod (18) is arranged on the fixing ring (17), and the connecting rod (18) is fixedly connected to the corresponding protection sleeve (21).

7. The protective structure of a photovoltaic energy storage DC-AC flexible cable with corrosion resistance according to claim 6, characterized in that, A plurality of cable fixing clips (19) are sleeved on the installation ring (14), and the cable fixing clips (19) are fixedly connected to a section of cable one (24) close to the installation ring (14).

8. The protective structure of a photovoltaic energy storage DC-AC flexible cable with corrosion resistance effect according to claim 7, characterized in that, A plurality of floating cylinders (3) are evenly arranged on the outer side of the annular floating body tube (11).

9. The protective structure of a light storage, direct current and flexible cable with corrosion resistance effect according to claim 8, characterized in that, The end of the protection sleeve (21) close to the high-elastic film (12) is inclined downward.

10. A photovoltaic energy storage DC flexible cable with corrosion resistance effect, comprising the protection structure as described in claim 9, characterized in that, The first cable (24) includes a conductor (241), and an insulating layer (242), a sheath (243), and a corrosion-resistant layer (244) are sequentially arranged on the outer side of the conductor (241) from the inside to the outside. The first cable (24) penetrates through the inside of the protective sleeve (21).

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