Offshore floating film photovoltaic platform model test device for simulating different accumulated water

Abstract

The invention discloses an offshore floating type thin film photovoltaic platform model test device for simulating different accumulated water, and relates to the technical field of offshore photovoltaic power generation, the offshore floating type thin film photovoltaic platform model test device comprises a fluid diverter, a sprinkler head array and a thin film photovoltaic platform model, the water spraying head array is installed above the thin film photovoltaic platform model, the fluid flow divider is connected with the water spraying head array, and the fluid flow divider can adjust water flow distribution of the water spraying head array. Through cooperative work of the wave generator and the rainfall system, complex dynamic response, such as a floating state, a motion characteristic and a mooring stress condition, in an extreme environment can be simulated, high-precision test data is provided for platform design, potential problems in the design can be found in time, the structural performance is optimized, and the test efficiency is improved. The safety and reliability of the floating photovoltaic power generation platform in an extreme environment are improved, and further development of the photovoltaic power generation technology is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of offshore photovoltaic power generation, and in particular to an offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations. Background Art

[0002] With the rapid advancement of photovoltaic power generation technology and the continuous reduction of economic costs, offshore floating photovoltaic platforms, as a new photovoltaic power generation solution, have gradually become an important means to solve the problem of land resource shortage. One of the emerging design solutions is the offshore floating thin-film photovoltaic platform. Compared with land-based photovoltaic systems, offshore floating thin-film photovoltaic platforms have significant advantages such as light weight, low wind resistance, convenient installation, and low cost. They are especially suitable for deployment in open seas and large waters, showing great application potential. However, since the offshore floating thin-film photovoltaic platform is close to the water surface, it is easily affected by natural environmental factors such as waves and rainfall, resulting in water accumulation. The water accumulation phenomenon may cause the platform's floating state to be unstable, and in severe cases may even cause safety hazards such as sinking. Therefore, how to verify the drainage performance and floating state maintenance ability of the thin-film photovoltaic platform design solution under water accumulation has become an important technical problem affecting design and practical application.

[0003] There are two main sources of water accumulation: one is global water accumulation caused by rainfall, and the other is local water accumulation caused by wave overtopping. Under severe sea conditions, these two types of water accumulation often occur at the same time, which puts higher demands on platform design. However, the existing test equipment can only simulate wave overtopping, but cannot effectively simulate rainfall or combine the synergistic effect of rainfall and waves. In addition, in response to the problem of water accumulation, the design of permeable membrane platforms came into being, but the existing test equipment lacks high-precision measurement methods for key elements such as the water permeability of the permeable membrane platform and the buoyancy distribution between the float and the membrane.

[0004] Therefore, technicians in this field are committed to developing a model test device for an offshore floating thin-film photovoltaic platform that simulates different water accumulation conditions, which can simulate complex dynamic responses under extreme environments, such as floating states, motion characteristics and mooring stress conditions, and provide high-precision test data for platform design. Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to provide different water accumulation characteristics for an offshore floating thin-film photovoltaic platform model test device.

[0006] To achieve the above-mentioned purpose, the present invention provides an offshore floating thin-film photovoltaic platform model test device that simulates different water accumulations, characterized in that it includes a fluid diverter, a water spray head array and a thin-film photovoltaic platform model, wherein the thin-film photovoltaic platform model is fixed in a water pool, the water spray head array is installed above the thin-film photovoltaic platform model, the fluid diverter is connected to the water spray head array, and the fluid diverter can adjust the water flow distribution of the water spray head array.

[0007] Furthermore, it also includes a bracket and a horizontal mooring device, the thin-film photovoltaic platform model is fixed in the pool through the horizontal mooring device, and the fluid diverter and the sprinkler head array are fixedly installed on the bracket.

[0008] Furthermore, it also includes a laser displacement sensor, which is installed on the bracket.

[0009] Furthermore, the thin-film photovoltaic platform model includes a floating ring, and the laser displacement sensor is vertically aligned with a reflective sheet installed on the surface of the floating ring.

[0010] Furthermore, it also includes a centrifugal water pump, which is connected to the fluid diverter through a first flexible hose.

[0011] Furthermore, the centrifugal water pump is also provided with a flow meter.

[0012] Furthermore, the water spray head array is divided into a plurality of areas, each of the areas is provided with a water spray head, and the plurality of areas of the water spray head array are connected to the fluid diverter respectively through a plurality of second flexible hoses.

[0013] Furthermore, an independent valve is provided in the fluid diverter corresponding to each of the second flexible hoses.

[0014] Furthermore, the water spray head array is divided into 9 areas, and the number of the second flexible hoses is 9.

[0015] Furthermore, a wave generator is provided in the water pool, and the wave generator can simulate different wave conditions in the water pool.

[0016] The present invention proposes a model test device for an offshore floating thin-film photovoltaic platform that simulates different water accumulation characteristics. The device includes the following core components: a centrifugal pump with a flow meter, a profile support frame, a fluid diverter with an independent control valve, a precisely arranged sprinkler head, a flexible water pipe, a wave generator, and a high-precision laser displacement sensor. The device can work with waves while simulating rainfall of different intensities, thereby realizing dynamic testing and quantitative analysis of the impact of local and global water accumulation. In order to simulate rainfall, the device uses a centrifugal pump to provide a stable water flow, and cooperates with a fluid diverter with an independent control valve to accurately adjust the flow. Each outlet of the diverter is connected to a sprinkler head, which is fixed by a profile support frame and arranged above the platform. By adjusting the diverter valve, precipitation simulation with different flow rates and action areas (local or global) can be achieved. The water pressure is precisely numerically controlled by the centrifugal pump, thereby adjusting the initial impact force of the water flow on the platform to meet various test requirements. In addition, the device integrates a laser displacement sensor for floating state data collection. Based on the principle of laser triangulation, the sensor irradiates the surface of the floating ring with laser and captures the position change of scattered light in real time, measures the vertical displacement of the floating ring, and accurately quantifies the dynamic floating state changes of the platform under water and wave conditions. Through the coordinated work of the wave generator and the rainfall system, the present invention can simulate complex dynamic responses in extreme environments, such as floating state, motion characteristics and mooring stress conditions, and provide high-precision test data for platform design.

[0017] The beneficial technical effects of the present invention are as follows:

[0018] 1. Existing test devices are usually unable to accurately control the precipitation flow and precipitation area, and can only achieve rough precipitation simulation, which is difficult to meet the needs of detailed evaluation of the performance of floating photovoltaic platforms under different precipitation conditions. The present invention designs a fluid diversion system with adjustable flow and action area, combined with precisely arranged sprinkler heads, to achieve accurate simulation of precipitation, including uniform rainfall of different intensities and local concentrated water accumulation. The present invention is provided with a fluid diverter with an independent control valve, and each outlet of the fluid diverter is connected to 9 sprinkler heads respectively, and the sprinkler heads are precisely arranged above the test platform through profile brackets. By controlling the switch and flow regulation of the fluid diverter, accurate control of the precipitation flow and flexible adjustment of the action area can be achieved, and global water accumulation under rainfall and local water accumulation under wave conditions can be accurately simulated, providing a reliable test method for the water accumulation and drainage performance of thin-film photovoltaic platforms. In addition, the controllable precipitation flow and regional distribution greatly improve the experimental repeatability and data reliability, providing a scientific basis for platform design optimization.

[0019] 2. The existing technology is not capable of simulating water accumulation in a wave environment, and it is particularly difficult to simultaneously realize the comprehensive impact analysis of local and global water accumulation on the dynamic response of the platform (such as buoyancy, movement, mooring force, etc.). The present invention combines precipitation simulation and wave generating devices to realize the coordinated test of the dynamic response of the thin-film photovoltaic platform under dynamic wave conditions by local and global water accumulation. The model test device uses independently controlled water spray heads and wave generators to work together. By adjusting the precipitation area, wave height and frequency, it accurately simulates the complex dynamic response of the platform under water accumulation and wave conditions. At the same time, the vertical displacement data of the floating ring is collected in real time through a laser displacement sensor to dynamically analyze the movement and force of the platform. The coordinated test of waves and rainfall can comprehensively evaluate the stability and reliability of the platform under extreme environmental conditions, so that the impact of water accumulation on the buoyancy and movement of the platform can be quantitatively analyzed, providing key technical support for platform structure optimization and design safety.

[0020] The test device of the present invention has significant technical advantages and industrial application prospects, and can provide important support for the design, optimization and safety assessment of thin-film photovoltaic platforms and other floating platform structures. The device uses innovative rainfall and wave collaborative simulation technology, combined with a fluid diverter with independent control valves and an adjustable profile support frame, to achieve precise control of rainfall intensity, regional distribution and impact force, and can dynamically simulate the impact of rainfall and waves on the platform. The high-precision laser displacement sensor monitors the vertical displacement of the floating ring in real time, provides quantitative data support, and fills the technical gap in the existing test device in water accumulation testing. The device has the characteristics of modular structure and easy production and implementation, and can be manufactured through standardized components to reduce costs and improve efficiency. It has high measurement accuracy and strong applicability, and can be widely used in the performance verification and optimization of floating photovoltaic platforms and other floating structures on the water, and has clear application scenarios in scientific research institutions and engineering companies. The application of the device can not only timely discover potential problems in the design, optimize structural performance, and improve the safety and reliability of floating photovoltaic power generation platforms in extreme environments, but also help promote the further development of photovoltaic power generation technology, with significant market value and social benefits, showing extremely high industrialization potential.

[0021] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a model test device for an offshore floating thin-film photovoltaic platform simulating different water accumulations according to a preferred embodiment of the present invention;

[0023] Figure 2It is a schematic diagram of the structure of a centrifugal pump of a model test device for an offshore floating thin-film photovoltaic platform simulating different water accumulations according to a preferred embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of a fluid diverter of an offshore floating thin-film photovoltaic platform model test device simulating different water accumulations according to a preferred embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of a water spray head array structure of an offshore floating thin-film photovoltaic platform model test device simulating different water accumulations in a preferred embodiment of the present invention;

[0026] Among them, 1-centrifugal pump, 2-fluid diverter, 3-sprinkler array, 4-bracket, 5-horizontal mooring device, 6-sprinkler, 7-first flexible hose, 8-laser displacement sensor, 9-thin-film photovoltaic platform model, 10-water pool, 11-floating ring. DETAILED DESCRIPTION

[0027] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0028] In the drawings, components with the same structure are indicated by the same numerical reference numerals, and components with similar structures or functions are indicated by similar numerical reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0029] The floating ring 11 and the thin film together form a thin film photovoltaic platform. The overall structure of the thin film photovoltaic platform model test device is as follows: Figure 1 As shown, the device consists of a fluid transmission and flow control system, a device support and fixing system, and a displacement measurement system. The thin-film photovoltaic platform model 9 is placed in a pool 10, and the bracket 4 of the device support and fixing system is fixedly installed on the pool 10. The thin-film photovoltaic platform model 9 is fixed on the pool 10 through a horizontal mooring device 5, and a force sensor is also installed on the horizontal mooring device 5. The structure of the centrifugal pump 1 is shown in FIG. Figure 2 As shown, the structure of the fluid diverter 2 is as follows Figure 3 As shown, the structure of the sprinkler head array 3 is as follows Figure 4As shown. A flow meter is also provided on the centrifugal pump 1. The fluid diverter 2 and the sprinkler array 3 are both installed on the bracket 4. The centrifugal pump 1 is started to provide water flow. The first flexible hose 7 introduces water into the fluid diverter 2. The fluid diverter 2 realizes uniform distribution or local concentration of water flow through nine second flexible hoses connected to the sprinkler array 3, thereby simulating two working conditions: global rainfall and local wave. An independent valve is provided at the position connected to each second flexible hose on the fluid diverter 2. The independent valve is a needle valve. The global rainfall working condition is to open all valves connected to the sprinkler array 3 on the fluid diverter 2 to generate uniform water flow covering the entire thin-film photovoltaic platform model 9; the local water accumulation working condition is to open only one or several valves on the fluid diverter 2 corresponding to the edge of the sprinkler array 3, and close the rest, so that all flow is concentrated on the edge of the film to achieve the simulation of wave overtopping and water accumulation.

[0030] After the water flows through the sprinkler array 3, simulated rainfall is formed. The uniform simulated rainfall covers the entire platform. The local simulated rainfall is formed by opening the designated valve on the fluid diverter 2, so that the corresponding sprinkler 6 on the sprinkler array 3 forms rainfall in the designated area. During the test, the laser displacement sensor 8 is installed on the bracket 4 and vertically aligned with the reflector installed on the surface of the float 11. The laser displacement sensor 8 can measure the vertical displacement of the float 11 with high precision by emitting lasers and receiving scattered light spots, and then quantify the draft changes of the platform. By real-time monitoring of the vertical displacement of the float 11, the floating state changes and drainage performance of the platform under different rainfall modes are recorded, providing data support for evaluating the impact of rainfall on floating stability and drainage capacity.

[0031] In addition, in order to simulate the influence of different initial impact forces on the platform performance, the initial impact force of the water flow can be changed by changing the water pressure through the centrifugal pump 1, and the vertical displacement change of the floating ring 11 can be monitored by the laser displacement sensor 8 to analyze the influence of the initial impact force on the floating stability and drainage capacity of the platform, so as to provide data basis for the optimization of platform design.

[0032] In addition, the test device can simulate the wave environment through a wave maker, conduct a coordinated test of waves and water accumulation, and explore their comprehensive impact on the performance of the platform. A wave maker is set in the pool 10, and the thin-film photovoltaic platform model 9 is placed in the pool 10. On the basis of starting the wave maker to simulate different wave conditions, the rainfall simulation is completed in combination with the sprinkler array 3. The water flow distribution is adjusted by the fluid diverter 2 to simulate local water accumulation and overall water accumulation respectively. During the test, the laser displacement sensor 8 monitors the vertical displacement of the float 11 in real time, and combines the motion capture system to record the floating state changes, motion characteristics and stress conditions of the mooring system of the platform. The collaborative test can comprehensively evaluate the comprehensive impact of waves and water accumulation on the dynamic response of the thin-film photovoltaic platform, and provide important data support for the optimization of the drainage performance, stability and safety of the platform in extreme marine environments.

[0033] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A model test device for an offshore floating thin-film photovoltaic platform simulating different water accumulations, characterized in that: It includes a fluid diverter, a sprinkler array and a thin-film photovoltaic platform model, wherein the thin-film photovoltaic platform model is fixed in a water pool, the sprinkler array is installed above the thin-film photovoltaic platform model, the fluid diverter is connected to the sprinkler array, and the fluid diverter can adjust the water flow distribution of the sprinkler array.

2. The offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations according to claim 1, characterized in that: It also includes a bracket and a horizontal mooring device, the thin-film photovoltaic platform model is fixed in the pool through the horizontal mooring device, and the fluid diverter and the sprinkler head array are fixedly installed on the bracket.

3. The offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations as claimed in claim 2, characterized in that: It also includes a laser displacement sensor, which is installed on the bracket.

4. The offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations as claimed in claim 3, characterized in that: The thin-film photovoltaic platform model comprises a floating ring, and the laser displacement sensor is vertically aligned with a reflective sheet installed on the surface of the floating ring.

5. The offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations according to claim 1, characterized in that: The invention also comprises a centrifugal water pump, wherein the centrifugal water pump is connected to the fluid diverter through a first flexible hose.

6. The offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations as claimed in claim 5, characterized in that: The centrifugal water pump is also provided with a flow meter.

7. The offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations according to claim 1, characterized in that: The water spray head array is divided into a plurality of areas, each of which is provided with a water spray head, and the plurality of areas of the water spray head array are connected to the fluid diverter respectively through a plurality of second flexible hoses.

8. The offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations as claimed in claim 7, characterized in that: An independent valve is provided in the fluid diverter corresponding to each of the second flexible hoses.

9. The offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations according to claim 7, characterized in that: The water spray head array is divided into 9 areas, and the number of the second flexible hoses is 9.

10. The offshore floating thin-film photovoltaic platform model test device for simulating different water accumulations according to claim 1, characterized in that: A wave generator is also provided in the water pool, and the wave generator can simulate different wave conditions in the water pool.

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