Water-gas membrane connecting mode

By using a water-air membrane connection method, and by combining a thin-film structure with a stable gas, the problem of insufficient connection strength of offshore photovoltaic platforms has been solved, enabling the expansion and maintenance of offshore photovoltaic platforms with high stability and low cost.

CN121106601APending Publication Date: 2025-12-12TIANJIN UNIV
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Patent Information

Application Number
CN202511404174.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Existing offshore photovoltaic platform connection structures suffer from problems such as insufficient connection strength, poor stability, high installation and maintenance difficulty, and high cost.

Method used

The water-air membrane connection method is adopted, which utilizes a connection system composed of a membrane body, lugs, shaft holes and floats in a thin film structure. Through the cooperation of stable gas and connecting springs, the flexibility and stability are improved.

Benefits of technology

It significantly improves the wind and wave resistance of offshore photovoltaic platforms, the structure is easy to assemble, reduces costs, and can adaptively adjust buoyancy when floating on the water, thus improving safety and stability.

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Abstract

The invention belongs to the technical field of photovoltaic power generation, and particularly relates to a water-gas membrane connection mode which comprises a membrane body of a thin-film structure; the lugs are uniformly arranged on the upper side and the lower side of the peripheral side surface of the film body; the shaft holes and the lugs which correspond to each other are distributed in a staggered manner and are meshed with each other; the shaft body is movably connected to the interior of the shaft hole; the floating plate is positioned between the staggered meshing positions of the lug and the shaft hole on the same side of the membrane body; the water-gas membrane connecting mode is low in cost, has certain flexibility, can float along with waves, is high in stability, is not easy to damage, can remarkably improve the wind and wave resistance of the platform, is convenient to assemble and connect in structure, meets the eco-friendly requirement, and can meet the requirement for large-scale production if the area of the photovoltaic platform needs to be enlarged or the photovoltaic platform needs to be maintained and overhauled. According to the invention, the addition and replacement of a new water-gas membrane become more convenient, and the new water-gas membrane can be quickly connected with an original platform through the device, so that the expansion and replacement of the platform are realized.
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Description

Technical Field

[0001] This invention belongs to the field of photovoltaic power generation technology, specifically a water vapor membrane connection method. Background Technology

[0002] With the increasing demand for renewable energy, offshore floating photovoltaic (PV) systems have received widespread attention due to their advantages such as being located in a vast water environment, having ample sunlight, and higher power generation efficiency. In recent years, offshore floating PV structures have been applied on a large scale, and the technology in the field has further developed. The types of PV platforms are becoming more diversified and functionally integrated, making them an important carrier for promoting marine energy development. Their lifespan directly determines the lifespan of offshore PV systems.

[0003] Publication No. CN115092337A discloses a connection structure for an offshore photovoltaic platform, including: a first connection structure and a second connection structure disposed between two adjacent offshore photovoltaic platform modules; wherein, the first connection structure is used to connect the two adjacent offshore photovoltaic platform modules, and the first connection structure is configured to enable the two adjacent offshore photovoltaic platform modules to pitch; the connection structure has low connection efficiency and poor connection effect.

[0004] Publication No. CN115158566A discloses a connection structure for an offshore photovoltaic platform, comprising: an elastic connection device and an anti-collision device disposed between two adjacent offshore photovoltaic platform modules; wherein, the elastic connection device is respectively connected to the two adjacent offshore photovoltaic platform modules, and the elastic connection device has extensibility and elasticity; the anti-collision device is respectively disposed on the opposite sides of the two adjacent offshore photovoltaic platform modules; this connection structure has poor stability and low safety.

[0005] Because the marine environment is more complex than the terrestrial environment, there are higher requirements for the structure of offshore photovoltaic platforms. Currently, flexible offshore photovoltaic connection structures suffer from problems such as insufficient connection strength, high installation and maintenance difficulty, and high material and construction costs. Summary of the Invention

[0006] To address the above problems, this invention provides a water-air film connection method.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a water-air film connection method, comprising: The membrane body is a thin film structure; Ear pieces, wherein the ear pieces are evenly disposed on the upper and lower sides of the peripheral side of the membrane; The shaft hole is correspondingly misaligned with the lug and meshes with it; A shaft body, which is movably connected to the inside of a shaft hole; A float plate is located between the ear plate and the misaligned engagement position of the shaft hole on the same side of the membrane.

[0008] Preferably, the membrane body has a plurality of hinges evenly distributed on its peripheral side, the other side of the hinges being fixedly connected to the side wall of the ear piece, the inclination angle of the ear piece matching the outer surface of the shaft hole, and the outer surfaces corresponding when the ear piece and the shaft hole are staggered and spliced.

[0009] Preferably, the shaft hole is provided with a plug hole, the inner wall of the plug hole is sealed and fixed to the outer surface of the shaft body, and the outer surface of the shaft body is in contact with the inner wall of the lug.

[0010] Preferably, the membrane body has a membrane cavity inside, the membrane cavity stores a stable gas, and the density inside the membrane cavity is less than the density of the external liquid.

[0011] Preferably, the upper and lower ear pieces and shaft holes on the same side of the membrane body are misaligned and engaged to form a cavity. The interior of the cavity is misaligned and fixed to the outer surface of the float plate. The float plate has buoyancy and its density is less than that of the external liquid.

[0012] Preferably, the top and bottom of the float plate are provided with a plurality of sliding grooves, the sliding grooves are filled with stabilizing gas, and a top rod is slidably connected inside the sliding groove. The ends of the top rods are in support contact with the outer surfaces of the lugs and the shaft holes.

[0013] Preferably, the inner wall of the sliding groove is provided with a plurality of connecting springs, the other end of which is fixedly connected to the end of the top rod, and the connecting spring is elastic.

[0014] Preferably, both the sliding groove and the membrane body have multiple through holes, and a flow tube is provided inside each through hole. The other end of the flow tube passes through the membrane body and is connected to the inside of the membrane cavity. The gas inside the sliding groove and the membrane cavity is connected by the flow tube.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, the water vapor membrane connection method has low cost, certain flexibility, can float with the waves, has high stability, is not easily damaged, can significantly improve the platform's resistance to wind and waves, and the structure is easy to assemble and connect. At the same time, it takes into account the needs of ecological friendliness. If it is necessary to expand the area of ​​the photovoltaic platform or carry out maintenance and repair, this invention makes it more convenient to add or replace new water vapor membranes. New water vapor membranes can be quickly connected to the original platform through this invention to realize the expansion and replacement of the platform.

[0016] 2. In this invention, the water-air membrane connection method adaptively adjusts the buoyancy of the membrane by means of the flow of stable gas when encountering floating water, thereby ensuring the stable support effect of the membrane and improving the stability and integrity of the membrane.

[0017] 3. In this invention, when the force on the membrane is too great, the ear plate and shaft hole are limited and supported by the elastic force of the connecting spring and the air pressure, which effectively avoids the ear plate and shaft hole from exerting a squeezing force on the floating plate and causing damage, thereby improving the safety and protection of each part. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention from the right view. Figure 3 This is a top-view three-dimensional structural diagram of the present invention; Figure 4 This is a three-dimensional structural diagram of the hinge structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the second embodiment of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a frontal three-dimensional view of the internal structure of the second embodiment of the present invention; Figure 8 for Figure 7 Enlarged view of point B in the middle; Figure 9 This is a partial exploded three-dimensional structural diagram of the second embodiment of the present invention.

[0019] In the diagram: 1. Membrane body; 2. Hinge; 3. Ear plate; 4. Shaft hole; 5. Cavity; 6. Insertion hole; 7. Membrane cavity; 8. Shaft body; 9. Float plate; 10. Sliding groove; 11. Push rod; 12. Connecting spring; 13. Through hole; 14. Flow tube. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] First Embodiment like Figures 1-4As shown, membrane 1 is a thin film structure and is the core part of the structure. Its main function is to provide buoyancy and float on the water surface. Membrane 1 has a membrane cavity 7 inside, which stores a stable gas, such as nitrogen. The density inside the membrane cavity 7 is less than the density of the external liquid. Therefore, the membrane 1 can provide buoyancy, which facilitates subsequent activities using the membrane 1.

[0022] Ear plates 3 are evenly distributed on the upper and lower sides of the membrane body 1. Ear plates 3 are not directly connected to the membrane body 1. Instead, ear plates 3 mainly serve to support and facilitate subsequent meshing and splicing. Shaft holes 4 are staggered with ear plates 3 and mesh with each other. Therefore, after the meshing and splicing of multiple adjacent ear plates 3 and shaft holes 4, the desired effect of splicing multiple membrane bodies 1 is achieved, which is more adaptable and meets the connection requirements of actual water-air membranes.

[0023] Multiple hinges 2 are evenly provided on the periphery of the membrane body 1. The other side of the hinge 2 is fixedly connected to the side wall of the ear piece 3. The hinge 2 splices and fixes the multiple ear pieces 3 together. At the same time, the setting of the hinge 2 can further improve the support strength of the membrane body 1. The tilt angle of the ear piece 3 matches the outer surface of the shaft hole 4. When the ear piece 3 and the shaft hole 4 are spliced ​​in an alternating manner, their outer surfaces correspond. Therefore, after the corresponding multiple ear pieces 3 and shaft holes 4 are staggered and engaged, their outer surfaces are a smooth plane. This setting facilitates the subsequent improvement of buoyancy.

[0024] The shaft 8 is movably connected inside the shaft hole 4. The shaft 8 mainly inserts and fixes multiple shaft holes 4, effectively improving the connection strength and stability of the shaft holes 4. The shaft hole 4 is provided with an insertion hole 6. The inner wall of the insertion hole 6 is sealed and fixed to the outer surface of the shaft 8. The outer surface of the shaft 8 is in contact with the inner wall of the lug 3. The shaft 8 supports and fixes the interlocking lug 3 and the inner wall of the shaft hole 4, further improving the installation strength and support stability. At the same time, adjacent lug 3 and shaft hole 4 can rotate around the shaft 8 to a certain extent, further improving the activity stability and safety of multiple membranes 1.

[0025] The float plate 9 is located between the misaligned engagement position of the lug 3 and the shaft hole 4 on the same side of the membrane body 1. The float plate 9 not only improves the support stability between the upper and lower lugs 3 and the shaft hole 4 on the same side, but also adjusts the buoyancy of the membrane body 1, thereby ensuring the adaptive floating adjustment function of the membrane body 1 for different water surface conditions.

[0026] After the upper and lower ear pieces 3 and shaft hole 4 on the same side of the membrane 1 are misaligned and engaged, a cavity 5 is formed. The interior of the cavity 5 is misaligned and fixed to the outer surface of the float plate 9. The cavity 5 facilitates the insertion and fixing of the float plate 9. The float plate 9 has buoyancy and its density is less than that of the external liquid. Furthermore, the float plate 9 can further improve the floating strength and floating effect of the membrane 1.

[0027] In this embodiment, a stable gas is first filled into the membrane cavity 7 inside the membrane body 1 to ensure that the volume and size of the membrane body 1 meet the requirements. Then, multiple membrane bodies 1 are spliced ​​together. Specifically, an appropriate number of membrane bodies 1 are transported according to the actual situation, and the multiple membrane bodies 1 are arranged in a positive grid pattern. Then, the corresponding lugs 3 and shaft holes 4 are staggered and engaged, and shaft bodies 8 are inserted into multiple insertion holes 6. The shaft bodies 8 provide movable support for the multiple shaft holes 4. After both the upper and lower shaft bodies 8 are installed, the required float plates 9 are inserted into the cavity 5. The setting of the float plates 9 further improves the buoyancy and fixation stability of the membrane body 1, thereby meeting the adaptability and stability of the membrane body 1 to different water surface environments.

[0028] After the water vapor membrane is connected, the assembled water vapor membrane is placed in the water. With the buoyancy of the membrane body 1 and the floating plate 9, the platform formed by it floats on the water, thus meeting the actual use requirements.

[0029] Second Embodiment like Figure 5-9 As shown, when the above-mentioned water vapor membrane is used on the actual water surface, the water surface will continuously fluctuate and cause multiple water vapor membranes to swing up and down synchronously. Therefore, there will also be a certain degree of tilt angle between adjacent misaligned membranes 1. This tilt angle will cause the top of the membrane 1 to float up and down on the water surface and affect the stability of the membrane 1. At the same time, when the force on the top of the membrane 1 is uneven and the included angle between adjacent membranes 1 is too large, the lugs 3 and shaft holes 4 will squeeze the float 9 and cause damage to its structure. It may even cause one side of the membrane 1 to be submerged in the water and affect its buoyancy.

[0030] To address the aforementioned issues, this water-air membrane connection method further includes the following in practical use: multiple sliding grooves 10 are evenly provided on the top and bottom of the float plate 9. The sliding grooves 10 are positioned corresponding to multiple adjacent lugs 3 and shaft holes 4. A stabilizing gas is provided inside the sliding grooves 10, which can flow with the stabilizing gas inside the membrane cavity 7. A push rod 11 is slidably connected inside the sliding grooves 10. The ends of the push rods 11 are in support contact with the outer surfaces of the lugs 3 and shaft holes 4. Therefore, the push rods 11 support and protect the outer surfaces of the lugs 3 and shaft holes 4, preventing damage to the membrane 1 and the lugs 3 and shaft holes 4 themselves when the included angle between adjacent membrane bodies 1 changes.

[0031] Multiple connecting springs 12 are evenly arranged on the inner wall of the sliding groove 10. The other end of the connecting spring 12 is fixedly connected to the side end of the top rod 11. The connecting spring 12 is elastic, and the setting of the connecting spring 12 further improves the elastic reset effect of the top rod 11. Multiple through holes 13 are evenly opened inside the sliding groove 10 and the membrane body 1. The setting of the through holes 13 facilitates the installation and fixing of the subsequent flow pipe 14. The flow pipe 14 is set inside the through hole 13. The other end of the flow pipe 14 passes through the membrane body 1 and is connected to the inside of the membrane cavity 7. The gas inside the sliding groove 10 and the membrane cavity 7 is connected by the flow pipe 14. The stable gas inside the sliding groove 10 and the membrane cavity 7 can flow along the flow pipe 14, which facilitates the adaptive adjustment of the amount of stable gas inside the membrane cavity 7. At the same time, when the included angle between adjacent membrane bodies 1 is too large, the top rod 11 is supported by air pressure to avoid the ear plate 3 and the shaft hole 4 from squeezing and damaging the float plate 9.

[0032] Therefore, in actual use, multiple water vapor membranes are installed and fixed according to the above process and placed on the water surface. At this time, the membrane 1 is kept stable on the water surface by means of the stable gas inside the membrane cavity 7 and the float plate 9. When waves appear on the water surface, the water surface exerts a force on the bottom of multiple membranes 1 and drives multiple membranes 1 to rise and fall synchronously, and adjacent membranes 1 sway synchronously.

[0033] Simultaneously, when one membrane 1 sways up and down, it drives the hinge 2 to move up and down accordingly. The hinge 2 drives the lug 3 and shaft hole 4 on the other side to move up and down. The lug 3 and shaft hole 4 exert an action on the corresponding push rod 11 and drive the push rod 11 to move along the sliding groove 10 to squeeze the connecting spring 12. The stable gas inside the sliding groove 10 enters the membrane cavity 7 through the flow pipe 14. The amount of stable gas inside the membrane cavity 7 continuously increases and drives the volume of the membrane 1 to increase accordingly. The buoyancy of the membrane 1 increases accordingly, thereby ensuring that the adjacent membranes 1 are stably spliced ​​when swaying up and down on the water surface, avoiding the lug 3 and shaft hole 4 between adjacent membranes 1 from forming an angle and causing damage to their own structure.

[0034] If an operator walks on top of the membrane 1, or if a large object falls on top of the membrane 1, the pressure exerted on the membrane 1 will increase accordingly. As mentioned above, the membrane 1 moves downwards via the hinge 2, causing the lugs 3 and shaft holes 4 to move downwards. The downward pressure exerted on the push rod 11 by the lugs 3 and shaft holes 4 increases, causing the push rod 11 to move downwards along the sliding groove 10. The stable gas inside the sliding groove 10 enters the membrane cavity 7 along the flow pipe 14. The amount of stable gas inside the membrane cavity 7 increases, which in turn increases the volume of the membrane 1. As a result, the buoyancy of the membrane 1 increases, which in turn increases the supporting force on the objects above the membrane 1.

[0035] When the push rod 11 moves downward to its maximum distance, the connecting spring 12 applies a downward thrust to the push rod 11 to its maximum value. With the help of the flow pipe 14, the air pressure inside the membrane cavity 7 and the sliding groove 10 is stabilized at its maximum value. The push rod 11 can no longer move downward into the sliding groove 10. The end of the push rod 11 applies a stable limiting support to the lug 3 and the shaft hole 4, effectively preventing the included angle between adjacent lugs 3 and shaft holes 4 from being too large and causing squeezing damage to the structure of the float plate 9, thereby improving the safety of the float plate 9 and the stability between the membranes 1.

[0036] As the operator moves the object backward, the squeezing force on the membrane 1 decreases. Under the elastic force of the connecting spring 12, the push rod 11 moves upward along the sliding groove 10 to return to its original position. The stable gas inside the membrane cavity 7 flows back into the sliding groove 10 along the flow pipe 14. The amount of stable gas in the temporal part of the membrane cavity 7 returns to normal. Then the membrane 1 and the float 9 return to their initial buoyancy and are connected and fixed on the water surface.

[0037] This water-air membrane connection method is low-cost, flexible, and can float with the waves. It is highly stable, not easily damaged, and can significantly improve the platform's resistance to wind and waves. The structure is also easy to assemble and connect, while taking into account the requirements of eco-friendliness. At the same time, when encountering water surface floating, the buoyancy of the membrane 1 is adaptively adjusted by the flow of stable gas. As mentioned above, when a membrane 1 floats upward due to the water surface and there is a height difference between it and the surrounding membranes 1, the squeezing force applied to the push rod 11 by the lug 3 and the shaft hole 4 increases. The push rod 11 moves downward along the sliding groove 10, and the stable gas inside the sliding groove 10 enters the membrane 1 through the flow pipe 14. The amount of stable gas inside the membrane 1 increases, and its own buoyancy increases accordingly. This prevents the membrane 1 from floating with the water surface and separating from the adjacent membranes, thereby ensuring the stable support effect of the membrane 1 and improving the stability and integrity of the membrane 1.

[0038] Furthermore, when the force applied to the membrane 1 is too great, the ear plate 3 and shaft hole 4 are limited and supported by the elastic force of the connecting spring 12 and the air pressure, which effectively prevents the ear plate 3 and shaft hole 4 from exerting a squeezing force on the floating plate 9 and causing it to be damaged, thereby improving the safety and protection of each part.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-air film connection method, characterized in that, include: Membrane (1), wherein the membrane (1) is a thin film structure; Ear pieces (3), the ear pieces (3) are evenly disposed on the upper and lower sides of the periphery of the membrane (1); The shaft hole (4) is correspondingly misaligned with the ear piece (3) and they mesh with each other; Shaft body (8), which is movably connected to the inside of shaft hole (4); The float (9) is located between the ear piece (3) and the shaft hole (4) on the same side of the membrane (1) at the misaligned meshing position.

2. The water-air film connection method according to claim 1, characterized in that, The membrane (1) has a plurality of hinges (2) evenly arranged on its peripheral side. The other side of the hinge (2) is fixedly connected to the side wall of the ear piece (3). The tilt angle of the ear piece (3) matches the outer surface of the shaft hole (4). When the ear piece (3) and the shaft hole (4) are staggered, their outer surfaces correspond to each other.

3. The water-air film connection method according to claim 1, characterized in that, The shaft hole (4) is provided with a plug hole (6), the inner wall of the plug hole (6) is sealed and fixed to the outer surface of the shaft body (8), and the outer surface of the shaft body (8) is in contact with the inner wall of the ear piece (3).

4. The water-air film connection method according to claim 1, characterized in that, The membrane (1) has a membrane cavity (7) inside, which stores a stable gas and the density inside the membrane cavity (7) is less than the density of the external liquid.

5. The water-air film connection method according to claim 1, characterized in that, The upper and lower ear pieces (3) and shaft hole (4) on the same side of the membrane (1) are misaligned and meshed to form a cavity (5). The cavity (5) is misaligned and fixed to the outer surface of the float plate (9). The float plate (9) has buoyancy and its density is less than that of the external liquid.

6. The water-air film connection method according to claim 4, characterized in that, The top and bottom of the float plate (9) are provided with a plurality of sliding grooves (10), the sliding grooves (10) are provided with stable gas, and the sliding grooves (10) are sealed and slidably connected with top rods (11), the ends of the top rods (11) are in support contact with the outer surfaces of the ear pieces (3) and the shaft holes (4).

7. The water-air film connection method according to claim 6, characterized in that, The inner wall of the sliding groove (10) is uniformly provided with a plurality of connecting springs (12), the other end of the connecting spring (12) is fixedly connected to the side end of the top rod (11), and the connecting spring (12) is elastic.

8. The water-air film connection method according to claim 6, characterized in that, Multiple through holes (13) are provided inside the sliding groove (10) and the membrane body (1). A flow tube (14) is provided inside the through hole (13). The other end of the flow tube (14) passes through the membrane body (1) and is connected to the inside of the membrane cavity (7). The gas inside the sliding groove (10) and the membrane cavity (7) is connected by the flow tube (14).

Citation Information

Patent Citations

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