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CN-122009414-A - Rope net supporting, flexible boundary and compartment cooperative floating type thin film photovoltaic anti-deformation device

CN122009414ACN 122009414 ACN122009414 ACN 122009414ACN-122009414-A

Abstract

The invention discloses a rope net supporting, flexible boundary and compartment cooperation floating type film photovoltaic deformation resistance device, which relates to the fields of new energy technology and ocean engineering equipment, and comprises an annular pontoon and a film bearing structure paved in the annular pontoon, wherein the film bearing structure comprises an upper film and a bottom film, radial connecting ropes and circumferential connecting ropes are fixedly arranged on the outer surfaces of the upper film and the bottom film, one ends of the radial connecting ropes are radially arranged and fixed on a film center area buoy in the center of the film, and the other ends of the radial connecting ropes are fixed on the edges of the upper film and the bottom film.

Inventors

  • ZHANG XIANTAO
  • CAI YUHANG
  • LIU HANYU
  • LUO WENPING
  • ZHAO YIWEI
  • ZHANG YUNYING
  • CHEN YONGQIANG

Assignees

  • 上海交通大学三亚崖州湾深海科技研究院

Dates

Publication Date
20260512
Application Date
20260305

Claims (10)

  1. 1. Rope net support, flexible boundary and compartment cooperate floating film photovoltaic anti-deformation device, including annular flotation pontoon (1) and shop in film bearing structure in annular flotation pontoon (1), its characterized in that: The film bearing structure comprises an upper film (2) and a bottom film (14); The outer surfaces of the upper layer film (2) and the bottom layer film (14) are fixedly provided with radial connecting ropes (6) and circumferential connecting ropes (7), the radial connecting ropes (6) are radially arranged, one end of each radial connecting rope is fixed on a film center area buoy (8) in the center of the film, and the other end of each radial connecting rope is fixed on the edges of the upper layer film (2) and the bottom layer film (14), and the circumferential connecting ropes (7) are annularly arranged and are intersected and fixed with the radial connecting ropes (6) to form a grid together; The edges of the upper film (2) and the bottom film (14) are wrapped with a wrapping edge (11), an elastic limiting block (13) is arranged on the inner side of the annular pontoon (1), and the wrapping edge (11) is connected with the elastic limiting block (13) through a flexible sling rope (12); The upper film (2) and the bottom film (14) are connected in a sealing way to form a plurality of independent inflatable compartments (15), and each inflatable compartment (15) is provided with an inflation valve (16).
  2. 2. The grid support, flexible border and compartment co-floating film photovoltaic anti-deformation device according to claim 1, characterized in that the circumferential connecting ropes (7) are arranged in regular octagons and the arrangement density of the circumferential connecting ropes (7) increases gradually from the periphery of the upper film (2) and the lower film (14) to the central area.
  3. 3. The grid support, flexible border and compartment co-floating film photovoltaic anti-deformation device according to claim 1, characterized in that the radial connection strings (6) and the circumferential connection strings (7) are fixed at the intersection point by flexible clips and that the radial connection strings (6) and the circumferential connection strings (7) are glued to the outer surfaces of the upper film (2) and the lower film (14) by means of an adhesive.
  4. 4. The grid support, flexible border and compartment cooperative floating film photovoltaic anti-deformation device according to claim 1, characterized in that the length of the flexible sling cord (12) is 10% -15% shorter than the linear distance between the edges of the upper and lower films (2, 14) and the elastic stopper (13), and the flexible sling cord (12) has elastic elongation.
  5. 5. The rope net supporting, flexible boundary and compartment cooperative floating type thin film photovoltaic anti-deformation device according to claim 1, wherein the elastic limiting block (13) is made of polyurethane material, the flexible sling soft rope (12) is made of polyester fiber material, and the wrapping edge (11) is made of wear-resistant nylon material.
  6. 6. The rope net supported, flexible border and compartment co-floating film photovoltaic anti-deformation device according to claim 1, characterized in that the inflated compartment (15) is a hexagonal compartment separated between the upper film (2) and the lower film (14) by a heat sealing process.
  7. 7. The rope net support, flexible border and compartment cooperative floating thin film photovoltaic anti-deformation device according to claim 1 or 6, characterized in that each of the inflatable compartments (15) is further provided with a pressure sensor (17), the pressure sensor (17) being in signal connection with the inflation valve (16).
  8. 8. The rope net supporting, flexible boundary and compartment cooperative floating type film photovoltaic anti-deformation device according to claim 1, wherein the film central area buoy (8) is connected with the central area of the upper layer film (2) through an upper side fixing rope (9) and is connected with the central area of the bottom layer film (14) through a lower side fixing rope (18), the outer end of the upper side fixing rope (9) is connected with the annular buoy (1) through an upper fixing block (10), the outer end of the lower side fixing rope (18) is connected with the annular buoy (1) through a lower fixing block (19), and a plurality of upper side fixing ropes (9) and lower side fixing ropes (18) are respectively and uniformly arranged.
  9. 9. The rope net supporting, flexible boundary and compartment cooperative floating type thin film photovoltaic anti-deformation device according to claim 1, wherein mooring ropes (4) are uniformly arranged on the outer side of the annular pontoon (1) through connecting ropes (5), mooring buoys (3) are fixedly arranged at the connection positions of the mooring ropes (4) and the outer side connecting ropes (5), and each three groups of outer side connecting ropes (5) correspond to one group of mooring ropes (4).
  10. 10. The rope net supporting, flexible boundary and compartment cooperative floating type thin film photovoltaic anti-deformation device according to claim 9, wherein the outer end of the radial connecting rope (6) corresponds to the position of the elastic limiting block (13), and the inner end of the mooring rope (4) is connected to the elastic limiting block (13).

Description

Rope net supporting, flexible boundary and compartment cooperative floating type thin film photovoltaic anti-deformation device Technical Field The invention relates to the field of new energy technology and ocean engineering equipment, in particular to a floating type supporting structure for an offshore or waterborne photovoltaic system, and especially relates to a rope net supporting and flexible boundary and compartment collaborative floating type thin film photovoltaic deformation resistance device for inhibiting thin film deformation through the synergistic effect of various structures. Background In recent years, offshore floating photovoltaic technology has been rapidly developed as an important branch of sustainable energy solutions. Among them, the thin film type floating photovoltaic system is attracting attention because it can realize a high-efficiency water cooling effect. The typical configuration is to use an annular pontoon to provide system buoyancy, and to lay a large-area flexible photovoltaic membrane within the annular pontoon frame and to bring it into direct contact with the body of water for cooling. However, existing floating thin film photovoltaic devices expose significant technical drawbacks under complex wind, wave, and current loads. The film structure is high in flexibility, and obvious deformation such as vertical sinking, local bulge or edge fold easily occurs under wave load. Particularly in the central area away from the boundary of the rigid pontoon, the deformations are more severe and difficult to control. The large deformation causes high concentration of local stress of the film, is extremely easy to cause material fatigue and tearing risk, and seriously threatens the safety and long-term stability of the whole photovoltaic array. In the prior art, the solution to the deformation of the film is single, for example, the effect is limited and the cost is high only by increasing the thickness of the film or locally reinforcing the film, or the completely rigid internal supporting frame is adopted, so that the weight and the cost are greatly increased, and the advantage of the film structure that the film structure passively adapts to waves is weakened. Disclosure of Invention The invention aims to overcome the defects in the prior art and provides a rope net supporting, flexible boundary and compartment cooperative floating type thin film photovoltaic anti-deformation device. The device is constrained and resists the deformation of the film from different dimensions through the synergistic effect of the rope net supporting system, the flexible boundary constraint structure and the double-layer inflatable compartment, and aims to solve the key problems of easy sinking, stress concentration and easy tearing of the film in the floating film photovoltaic, thereby remarkably improving the safety, stability and service life of the device in the severe water area environment. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a rope net supports, flexible boundary and compartment floating film photovoltaic anti-deformation device in coordination, includes annular flotation pontoon and lays in film bearing structure in the annular flotation pontoon, its characterized in that: The film bearing structure comprises an upper film and a bottom film; The outer surfaces of the upper layer film and the bottom layer film are fixedly provided with radial connecting ropes and circumferential connecting ropes, the radial connecting ropes are radially arranged, one end of each radial connecting rope is fixed on a film center area buoy in the center of the film, and the other end of each radial connecting rope is fixed on the edges of the upper layer film and the bottom layer film; the edges of the upper film and the bottom film are wrapped with a wrapping edge, an elastic limiting block is arranged on the inner side of the annular pontoon, and the wrapping edge is connected with the elastic limiting block through a flexible sling rope; The upper film and the bottom film are connected in a sealing way to form a plurality of independent inflation compartments, and each inflation compartment is provided with an inflation valve and a pressure sensor. According to the preferable technical scheme, eight radial connecting ropes are arranged, and the included angle between every two adjacent radial connecting ropes is 45 degrees, so that the surfaces of the films are uniformly covered. The circumferential connecting ropes are arranged in a regular octagon shape, and the arrangement density of the circumferential connecting ropes gradually increases from the periphery of the upper layer film and the bottom layer film to the central area. The axial rigidity bears the tensile force to limit the radial stretching displacement of the film, disperse the vertical deformation of the central area, sequentially encrypt the film from