A protection system for a floating offshore photovoltaic platform

Abstract

The application discloses a kind of protection systems of floating offshore photovoltaic platform, it is related to offshore photovoltaic technical field.The protection system of floating offshore photovoltaic platform of the present application includes ventilation assembly, multiple first air extraction units and multiple exhaust units, ventilation assembly includes ventilation pipeline with air inlet and air outlet and ventilation unit, condensing unit and drying unit sequentially arranged on ventilation pipeline, multiple first air extraction units are sequentially arranged in guardrail, and first air extraction unit includes first air pipe connected with air inlet and multiple first branch pipes communicated with first air pipe, multiple first air inlet holes are provided on first branch pipe, multiple exhaust units are arranged in guardrail, and exhaust unit includes second air pipe connected with air outlet and multiple second branch pipes communicated with second air pipe, and second branch pipe is provided with multiple exhaust holes.The protection system of floating offshore photovoltaic platform of the present application can realize the protection of photovoltaic equipment on photovoltaic platform, ensure the power generation efficiency and service life of photovoltaic module.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of offshore photovoltaic technology, in particular to a protection system of a floating offshore photovoltaic platform. BACKGROUND

[0002] With the growth of social production and energy demand, the use of offshore photovoltaic resources has attracted great attention, and the use of floating offshore photovoltaic platforms has been widely developed and popularized, that is, by setting a floating platform on the sea surface to provide support for photovoltaic modules, the use of light resources on the sea surface is realized. However, when the floating offshore photovoltaic platform is in use, due to the violent disturbance of seawater in the ocean, wind and wave breaking, and sea wave hitting the shore, a large amount of foam and bubbles are generated, and when the bubbles burst, tiny water droplets are generated. Most of the water droplets fall due to gravity, and part of the water droplets are in a state of balance with the vortex diffusion and are distributed on the sea surface, thereby generating salt mist, which will block and refract light to the photovoltaic module, affecting the absorption of light by the photovoltaic module and thus affecting the power generation efficiency. At the same time, the salt mist can adhere to the surface of the photovoltaic panel, thereby forming deposits, further blocking the light reaching the photovoltaic panel, and the salt mist and deposits crystallized from the salt mist and adhered to the photovoltaic platform can corrode the equipment on the photovoltaic platform, seriously affecting the use safety and service life of the photovoltaic platform. SUMMARY

[0003] The present application aims to at least partially solve one of the technical problems in the related art.

[0004] To this end, the present application provides a protection system of a floating offshore photovoltaic platform, which can disperse the salt mist around the photovoltaic platform, reduce the corrosion of the salt mist and the deposits generated by the salt mist on the photovoltaic equipment on the photovoltaic platform, ensure the power generation efficiency of the photovoltaic module, and improve the use safety and service life of the photovoltaic platform.

[0005] The protection system of the floating offshore photovoltaic platform according to the present application is based on a floating offshore photovoltaic platform, which includes a mounting platform for mounting photovoltaic panels, and a guardrail extending in the circumferential direction is arranged on the mounting platform, comprising:

[0006] An air exchange assembly, the air exchange assembly includes an air exchange pipeline and an air exchange unit, a condensation unit and a drying unit arranged in sequence on the air exchange pipeline, the air exchange pipeline has an air inlet and an air outlet;

[0007] A plurality of first air extraction units, wherein the plurality of first air extraction units are sequentially arranged on the guardrail along the circumference of the mounting platform, the first air extraction units include a first air duct and a plurality of first branch pipes, the first air duct is connected to the air inlet, the plurality of first branch pipes are arranged side by side on the first air duct and communicate with the first air duct, a plurality of first air inlet holes are provided on the first branch pipe at intervals along the axial direction, the first branch pipe is used to extract salt mist from the outside of the guardrail, and the plurality of first air extraction units are used to form a continuous salt mist isolation zone on the outside of the guardrail to prevent salt mist from entering the inside of the guardrail;

[0008] Multiple exhaust units, multiple exhaust units are arranged in the guardrail and arranged in an array on the mounting platform, the exhaust unit includes a second air duct and multiple second branch pipes, the second air duct is connected to the air outlet, multiple second branch pipes are arranged side by side in the second air duct and connected to the second air duct, multiple exhaust holes are provided on the second branch pipe at axial intervals, the second branch pipe is used to transport air into the guardrail, and multiple exhaust units are used to remove salt mist in the guardrail.

[0009] The protection system of the floating offshore photovoltaic platform in the embodiment of the present invention can dispel the salt fog around the photovoltaic platform, reduce the erosion of the photovoltaic equipment on the photovoltaic platform by the salt fog and the sediment generated by the salt fog, ensure the power generation efficiency of the photovoltaic modules, and improve the safety and service life of the photovoltaic platform.

[0010] In some embodiments, a plurality of second air extraction units are included, and an array of the plurality of second air extraction units is arranged below the installation platform. The second air extraction unit includes a third air duct and a plurality of third branch pipes. The third air duct is connected to the air inlet. The plurality of third branch pipes are arranged side by side in the third air duct and are connected to the third air duct. A plurality of second air inlet holes are provided on the third branch pipe at axial intervals. The third branch pipe is used to extract salt mist from below the installation platform. The plurality of second air extraction units are used to form a salt mist isolation wall on the outside of the installation platform to prevent salt mist from entering above the installation platform.

[0011] In some embodiments, at least two rows of first air inlet holes are provided on the first branch pipe, and within the same first air exhaust unit, the first air inlet holes on two connected first branches are staggered, and / or the first air inlet holes in two adjacent rows on the same first branch pipe are staggered.

[0012] In some embodiments, a baffle assembly is included that is arranged corresponding to the first air extraction unit, and the baffle assembly includes baffles that are arranged in a one-to-one correspondence with the first branch pipes, and the baffles are rotatably arranged relative to the first branch pipes. The baffles have a first position and a second position. In the first position, the baffle is arranged at an angle to the line connecting two adjacent first branches, and in the second position, the baffle and the line connecting the two first branches are arranged parallel to or overlapping with each other.

[0013] In some embodiments, a drive assembly is included that corresponds to the first air pumping unit, and the drive assembly includes a drive rod and a transmission rod. The drive rod is connected to the transmission rod for driving the transmission rod to rotate. The transmission rod is provided corresponding to the first branch pipe, and the transmission rod is sleeved on the first branch pipe and rotates with the first branch pipe. The transmission rod is fixedly connected to the baffle, and a ring sleeve is fixed on the baffle, and the ring sleeve rotates with the first branch pipe.

[0014] In some embodiments, the drive assembly includes a drive motor, multiple driving bevel gears and multiple driven bevel gears. The output end of the drive motor is coaxial with and fixedly connected to the drive rod. The driving bevel gear is fixed to the drive rod, and the driven bevel gear is fixed to the transmission rod. The driving bevel gear and the driven bevel gear are engaged with each other.

[0015] In some embodiments, the ventilation component includes a heating unit, which is disposed below the drying unit and is configured to heat the dried air in the ventilation duct.

[0016] In some embodiments, it includes a controller and a detection unit, the controller is electrically connected to the ventilation unit, the condensation unit, the drying unit and the detection unit respectively, the detection unit includes a visibility detector, the visibility detector is used to transmit measurement values ​​to the controller, and the controller is used to control the operation of the ventilation unit, the condensation unit and the drying unit when the measurement values ​​exceed a first set range.

[0017] In some embodiments, a humidity detector is included, which is electrically connected to the controller. The humidity detector is used to detect the ambient humidity in the guardrail and transmit the humidity to the controller. The controller is used to determine whether the detection value of the humidity detector is within a second setting range when the measurement value of the visibility detector exceeds the first setting range. If the humidity value detected by the humidity detector exceeds the second setting range, the controller drives the ventilation unit, the condensing unit and the drying unit to operate. If the humidity value detected by the humidity detector is within the second setting range, the controller outputs an alarm signal of "visibility detector failure".

[0018] In some embodiments, a timer and a remote control center are included, the timer is electrically connected to the controller, the controller is used to control the timer to start timing when the humidity value detected by the humidity detector exceeds a second set range and to control the timer to stop timing when the humidity value detected by the humidity detector is within the second set range, the controller is communicatively connected to the remote control center and is used to send a "system failure" alarm signal to the remote control center when the value of the timer exceeds the set value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of the protection system of the floating offshore photovoltaic platform according to an embodiment of the present invention when in use from a first perspective.

[0020] Figure 2 This is a structural schematic diagram of the second perspective of the protection system of the floating offshore photovoltaic platform when in use according to an embodiment of the present invention.

[0021] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0022] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0023] Figure 5 It is a connection diagram of the first air extraction unit and the barrier assembly in the protection system of the floating offshore photovoltaic platform according to an embodiment of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the first branch pipe in the protection system of the floating offshore photovoltaic platform according to an embodiment of the present invention.

[0025] Figure 7 It is a schematic structural diagram of a baffle in a protection system of a floating offshore photovoltaic platform according to an embodiment of the present invention.

[0026] Figure 8 It is a structural schematic diagram of an exhaust unit in a protection system of a floating offshore photovoltaic platform according to an embodiment of the present invention.

[0027] Figure 9 It is a structural schematic diagram of the second air extraction unit in the protection system of the floating offshore photovoltaic platform according to an embodiment of the present invention.

[0028] Reference numerals:

[0029] Installation platform 1; guardrail 11;

[0030] Ventilation assembly 2; ventilation duct 21; ventilation unit 22; condensing unit 23; drying unit 24; heating unit 25;

[0031] First air extraction unit 3; first air duct 31; first branch pipe 32; first air inlet 321;

[0032] Exhaust unit 4; second air duct 41; second branch pipe 42;

[0033] Second air extraction unit 5; third air duct 51; third branch pipe 52;

[0034] Baffle assembly 6; baffle 61; ring sleeve 62;

[0035] Driving assembly 7; driving rod 71; transmission rod 72; driving motor 73; driving bevel gear 74; driven bevel gear 75. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0037] like Figures 1 to 9 As shown, the protection system of the floating offshore photovoltaic platform of the embodiment of the present invention is based on a floating offshore photovoltaic platform. The floating offshore photovoltaic platform includes a mounting platform 1 for mounting photovoltaic panels. The mounting platform 1 is provided with a guardrail 11 extending in a circumferential direction. The protection system includes a ventilation component 2, a plurality of first air extraction units 3 and a plurality of exhaust units 4. The ventilation component 2 includes a ventilation duct 21 and a ventilation unit 22, a condensing unit 23 and a drying unit 24 sequentially arranged on the ventilation duct 21. The ventilation duct 21 has an air inlet and an air outlet. The plurality of first air extraction units 3 are sequentially arranged on the guardrail 11 along the circumferential side of the mounting platform 1. The first air extraction unit 3 includes a first air duct 31 and a plurality of first branch pipes 32. The first air duct 31 is connected to the air inlet, and the plurality of first branch pipes 32 are arranged side by side. The first air duct 31 is connected to the first air duct 31, and a plurality of first air inlet holes 321 are provided on the first branch pipe 32 at axial intervals. The first branch pipe 32 is used to extract salt mist from the outside of the guardrail 11. The plurality of first exhaust units 3 are used to form a continuous salt mist isolation belt on the outside of the guardrail 11 to prevent salt mist from entering the inside of the guardrail 11. The plurality of exhaust units 4 are provided in the guardrail 11 and are arrayed on the mounting platform 1. The exhaust unit 4 includes a second air duct 41 and a plurality of second branch pipes 42. The second air duct 41 is connected to the air outlet. The plurality of second branch pipes 42 are arranged side by side in the second air duct 41 and are connected to the second air duct 41. The second branch pipe 42 is provided with a plurality of exhaust holes at axial intervals. The second branch pipe 42 is used to transport air into the guardrail 11. The plurality of exhaust units 4 are used to remove the salt mist in the guardrail 11.

[0038] When the protection system of the floating offshore photovoltaic platform of the embodiment of the present invention is in use, the ventilation unit 22 provides power to the first exhaust unit 3, so that the first branch pipe 32 can extract the salt mist outside the first branch pipe 32, that is, outside the guardrail 11, through the first air inlet 321. The salt mist entering the first branch pipe 32 passes through the first air duct 31 and the ventilation pipe 21 to reach the condensation unit 23. The water vapor in the salt mist is condensed by the condensation unit 23, and the salt mist crystallizes and precipitates sediment. The salt mist is processed by the drying unit 24, and pure air is obtained. The purified air enters the exhaust unit 4 through the air outlet of the ventilation pipe 21, and passes through the first exhaust unit 4. The exhaust holes of the second branch pipe 42 discharge air, and the discharged air blows the air upwind of the photovoltaic panels in the guardrail 11. Multiple first exhaust units 3 operate simultaneously to extract the salt mist outside the guardrail 11 as a whole, so as to form a salt mist isolation zone outside the guardrail 11, and prevent the salt mist from passing through the guardrail 11 into the top of the photovoltaic panels and adhering to the photovoltaic panels and other photovoltaic equipment. Multiple exhaust units 4 can blow out the salt mist above the photovoltaic panels in the guardrail 11 by discharging purified air, and prevent the salt mist from entering the guardrail 11 through the top of the guardrail 11, and prevent the salt mist from forming deposits on the photovoltaic panels and photovoltaic equipment, thereby realizing salt mist protection for the photovoltaic panels and photovoltaic equipment in the guardrail 11.

[0039] The protection system of the floating offshore photovoltaic platform in the embodiment of the present invention can dispel the salt fog around the photovoltaic platform, reduce the erosion of the photovoltaic equipment on the photovoltaic platform by the salt fog and the sediment generated by the salt fog, ensure the power generation efficiency of the photovoltaic modules, and improve the safety and service life of the photovoltaic platform.

[0040] Optionally, the ventilation unit 22 is an air pump or a negative pressure fan.

[0041] Optionally, the condensing unit 23 is a condenser, configured to condense water vapor passing through the ventilation duct 21 .

[0042] Optionally, the drying unit 24 is an air dryer for drying the air passing through the ventilation duct 21 .

[0043] Optionally, an air booster pump is provided downstream of the drying unit 24 for pressurizing the air discharged from the air outlet in the ventilation duct 21 to ensure the discharge pressure and operating range of the air in the exhaust unit 4.

[0044] Optionally, the ventilation unit 22, the condensing unit 23 and the drying unit 24 are connected to the storage point components of the photovoltaic platform, and the electricity generated by sunlight is used as energy through the photovoltaic panels.

[0045] In some embodiments, as Figure 1 、 Figure 3 and Figure 9As shown, it includes multiple second air extraction units 5, and the multiple second air extraction units 5 are arranged in an array below the installation platform 1. The second air extraction unit 5 includes a third air duct 51 and multiple third branch pipes 52. The third air duct 51 is connected to the air inlet. The multiple third branch pipes 52 are arranged side by side on the third air duct 51 and are connected to the third air duct 51. A plurality of second air inlet holes are provided on the third branch pipe 52 at axial intervals. The third branch pipe 52 is used to extract salt mist from below the installation platform 1. The multiple second air extraction units 5 are used to form a salt mist isolation wall on the outside of the installation platform 1 to prevent salt mist from entering above the installation platform 1.

[0046] When the second exhaust unit 5 is operating, the salt mist below the installation platform 1 is extracted through the second air inlet hole on the third branch pipe 52, and the extracted salt mist is allowed to pass through the ventilation unit 22, the condensation unit 23 and the drying unit 24 through the third air duct 51 to process the salt mist to ensure that the gas discharged through the air outlet does not contain corrosive substances. Multiple second exhaust units 5 operate simultaneously to form a salt mist isolation wall below the installation platform 1 to prevent salt mist from entering the guardrail 11 through the gaps between the photovoltaic panels on the installation platform 1, thereby achieving protection for the photovoltaic panels and photovoltaic equipment, ensuring the power generation efficiency of the photovoltaic platform, and extending the service life of the photovoltaic platform.

[0047] In some embodiments, as Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, at least two rows of first air inlet holes 321 are provided on the first branch pipe 32. In the same first exhaust unit 3, the first air inlet holes 321 on the two connected first branch pipes 32 are staggered. By arranging multiple rows of first air inlet holes 321 on the first branch pipe 32, the effective range of the first branch pipe 32 can be increased. At the same time, the first air inlet holes 321 on the two adjacent first branch pipes 32 are staggered, which can increase the extraction efficiency of the multiple first air inlet holes 321 between the two adjacent first branch pipes 32 for salt mist, thereby ensuring the blocking effect of the salt mist isolation zone on salt mist and ensuring the protection of the photovoltaic equipment in the guardrail 11.

[0048] In some embodiments, the second branch pipe 42 has the same structure as the first branch pipe 32 , that is, the second branch pipe 42 is provided with at least two rows of exhaust holes, and the exhaust holes in two adjacent rows are staggered.

[0049] In some embodiments, as Figure 1 、 Figure 3 and Figure 5 As shown, the first air inlet holes 321 of two adjacent rows on the same first branch pipe 32 are staggered. When extracting salt mist, the operating area and extraction efficiency of a single first branch pipe 32 can be guaranteed, the salt mist isolation zone can be ensured to block the salt mist, and the photovoltaic equipment in the guardrail 11 can be protected.

[0050] In some embodiments, as Figure 1 、 Figure 3 、 Figure 5 and Figure 7 As shown, it includes a baffle assembly 6 arranged corresponding to the first air extraction unit 3, and the baffle assembly 6 includes a baffle 61 arranged in a one-to-one correspondence with the first branch pipe 32. The baffle 61 is rotatably arranged relative to the first branch pipe 32. The baffle 61 has a first position and a second position. In the first position, the baffle 61 is arranged at an angle to the line connecting the two adjacent first branches 32. In the second position, the baffle 61 and the line connecting the two first branches 32 are parallel to or coincide with each other.

[0051] When salt mist exists around the guardrail 11, the baffle 61 can be rotated to the second position. At this time, the baffle 61 can block the gap between the two adjacent first branch pipes 32. Multiple baffles 61 and multiple first branch pipes 32 can be combined to form a blocking wall. When the maximum extraction power of the first branch pipe 32 cannot extract all the salt mist, the failed salt mist isolation zone can be remedied to achieve physical isolation of the salt mist, thereby preventing the salt mist from passing through the gap between the first branch pipes 32 and entering the guardrail 11, thereby enhancing the protection effect against salt mist.

[0052] Optionally, in the first position, the baffle 61 is arranged perpendicular to a line connecting two adjacent first branch pipes 32 .

[0053] In some embodiments, as Figure 1 、 Figure 3 and Figure 5 As shown, it includes a driving assembly 7 arranged corresponding to the first air extraction unit 3, and the driving assembly 7 includes a driving rod 71 and a transmission rod 72. The driving rod 71 is transmission-connected to the transmission rod 72 for driving the transmission rod 72 to rotate. The transmission rod 72 is arranged corresponding to the first branch pipe 32, and the transmission rod 72 is sleeved on the first branch pipe 32 and rotates with the first branch pipe 32. The transmission rod 72 is fixedly connected to the baffle 61, and a ring sleeve 62 is fixed on the baffle 61, and the ring sleeve 62 rotates with the first branch pipe 32.

[0054] By rotating the transmission rod 72 and the ring sleeve 62, the baffle 61 can be rotated around the first branch pipe 32. The rotation of the driving rod 71 drives multiple transmission rods 72 to rotate. Each transmission rod 72 simultaneously drives the baffle 61 to rotate around the first branch pipe 32, thereby realizing adjustment of multiple baffles 61 between the first position and the second position, which is convenient to operate.

[0055] In some embodiments, as Figure 1 、 Figure 3 and Figure 5As shown, the drive assembly 7 includes a drive motor 73, a plurality of driving bevel gears 74 and a plurality of driven bevel gears 75. The output end of the drive motor 73 is coaxial with and fixedly connected to the drive rod 71. The driving bevel gear 74 is fixed to the drive rod 71, and the driven bevel gear 75 is fixed to the transmission rod 72. The driving bevel gear 74 and the driven bevel gear 75 are engaged with each other.

[0056] The transmission connection between the driving rod 71 and the transmission rod 72 is achieved by the engagement of the active bevel gear 74 and the driven bevel gear 75, which can change the transmission direction of the driving rod 71 and facilitate the simultaneous driving of multiple transmission rods 72, with convenient operation and reliable transmission.

[0057] Optionally, the transmission rod 72 includes a sleeve section and a connecting section, the sleeve section is rotatably fitted on the first branch pipe 32, the connecting section is arranged on the side of the sleeve section away from the first branch pipe 32, and the driven bevel gear 75 is coaxially fixedly arranged on the connecting section, the driving assembly 7 includes a protective shell, the protective shell has a mounting cavity, the driving rod 71 is rotatably set in the protective shell, the active bevel gear 74 and the driven bevel gear 75 are installed in the protective shell, the connecting section passes through the protective shell and is rotatably connected to the protective shell, the driving rod 71, the active bevel gear 74 and the driven bevel gear 75 can be protected by the protective shell, and at the same time, the meshing transmission between the active bevel gear 74 and the driven bevel gear 75 is guaranteed to avoid interference in the transmission between the driving rod 71 and the rotating rod.

[0058] In some embodiments, as Figure 2 and Figure 4 As shown, the ventilation component 2 includes a heating unit 25, which is arranged below the drying unit 24. The heating unit 25 is used to heat the dried air in the ventilation duct 21. By setting the heating unit 25, the dried air is heated, and the heated air enters the guardrail 11 through the exhaust hole, which can accelerate the volatilization of the salt mist in the guardrail 11, and at the same time increase the disturbance of the gas in the guardrail 11, accelerate the air flow, prevent salt mist from entering the guardrail 11 and adhering to the photovoltaic panels and photovoltaic equipment, and enhance the protection effect against salt mist.

[0059] Optionally, the heating unit 25 is an air heater for heating the dried air in the heat exchange pipe.

[0060] In some embodiments, it includes a controller and a detection unit, the controller is electrically connected to the ventilation unit 22, the condensation unit 23, the drying unit 24 and the detection unit respectively, the detection unit includes a visibility detector, the visibility detector is used to transmit the measurement value to the controller, and the controller is used to control the operation of the ventilation unit 22, the condensation unit 23 and the drying unit 24 when the measurement value exceeds a first set range.

[0061] The visibility detector is arranged to monitor the visibility of the air on the side of the guardrail 11, when the salt mist appears, the visibility detector can detect the environmental anomaly, that is, the measurement value of the visibility detector is not in the first set range, at this time the controller can drive the air exchange unit 22, the condenser and the drying unit 24 to work, realize the isolation of the salt mist outside the guardrail 11 and the discharge of the possible salt mist inside the guardrail 11, realize the automatic isolation of the salt mist, convenient and efficient, reduce the increase of personnel labor.

[0062] It should be noted that the visibility detector is prior art, and the specific structure and working principle will not be described again.

[0063] In some embodiments, a humidity detector is included, the humidity detector is electrically connected with the controller, the humidity detector is used to detect the environmental humidity in the guardrail 11 and transmit the humidity to the controller, the controller is used to judge whether the humidity detection value of the humidity detector is in the second set range when the measurement value of the visibility detector exceeds the first set range, if the humidity value detected by the humidity detector exceeds the second set range, the controller drives the air exchange unit 22, the condensing unit 23 and the drying unit 24 to work, if the humidity value detected by the humidity detector is in the second set range, an alarm signal of "the visibility detector has a fault" is output.

[0064] The humidity detector is arranged, when the visibility detector detects the abnormality, secondary detection is carried out, if the environmental humidity is in the second set range, everything is normal, the visibility detector has a false touch phenomenon, an alarm signal is issued to facilitate personnel to carry out timely maintenance, if the environmental humidity is not in the second set range, it indicates that the salt mist exists in the environment and needs to be protected, at this time the controller drives the air exchange unit 22, the condensing unit 23 and the drying unit 24 to work, the accuracy of the detection unit is ensured through the humidity detector, and the energy waste phenomenon caused by false touch is avoided.

[0065] In some embodiments, a timer and a remote control center are included, the timer is electrically connected with the controller, the controller is used to control the timer to start timing when the humidity value detected by the humidity detector exceeds the second set range, and is used to control the timer to stop timing when the humidity value detected by the humidity detector is in the second set range, the controller is in communication connection with the remote control center and is used to issue an alarm signal of "system fault" to the remote control center when the value of the timer exceeds the set value.

[0066] The timer can record the time taken to eliminate the influence of salt fog through the first air extraction unit 3 and the exhaust unit 4 when salt fog occurs. When salt fog occurs, the time recorded by the timer is compared with the value being counted. When the recorded time is exceeded, it means that there is a fault in the first air extraction unit 3 or the exhaust unit 4, and the salt fog cannot be isolated and dispersed, so that personnel can carry out maintenance to ensure the normal operation of the protection system.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0069] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0070] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0071] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0072] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A protection system for a floating offshore photovoltaic platform, based on a floating offshore photovoltaic platform, wherein the floating offshore photovoltaic platform includes a mounting platform for mounting photovoltaic panels, and the mounting platform is provided with a guardrail extending along the circumference, characterized in that: include: A ventilation assembly, the ventilation assembly comprising a ventilation duct and a ventilation unit, a condensing unit, and a drying unit sequentially arranged on the ventilation duct, the ventilation duct having an air inlet and an air outlet; A plurality of first air extraction units, wherein the plurality of first air extraction units are sequentially arranged on the guardrail along the circumference of the mounting platform, the first air extraction units include a first air duct and a plurality of first branch pipes, the first air duct is connected to the air inlet, the plurality of first branch pipes are arranged side by side on the first air duct and communicate with the first air duct, a plurality of first air inlet holes are provided on the first branch pipe at intervals along the axial direction, the first branch pipe is used to extract salt mist from the outside of the guardrail, and the plurality of first air extraction units are used to form a continuous salt mist isolation zone on the outside of the guardrail to prevent salt mist from entering the inside of the guardrail; A plurality of exhaust units, wherein the plurality of exhaust units are arranged in the guardrail and are arranged in an array on the mounting platform, the exhaust unit includes a second air duct and a plurality of second branch pipes, the second air duct is connected to the air outlet, the plurality of second branch pipes are arranged side by side in the second air duct and are in communication with the second air duct, the second branch pipe is provided with a plurality of exhaust holes spaced axially, the second branch pipe is used to transport air into the guardrail, and the plurality of exhaust units are used to remove salt mist in the guardrail; Multiple second air extraction units, multiple second air extraction units are arrayed below the installation platform, the second air extraction units include a third air duct and multiple third branch pipes, the third air duct is connected to the air inlet, multiple third branch pipes are arranged side by side on the third air duct and communicate with the third air duct, multiple second air inlet holes are axially spaced on the third branch pipe, the third branch pipe is used to extract salt mist from below the installation platform, and multiple second air extraction units are used to form a salt mist isolation wall on the outside of the installation platform to prevent salt mist from entering above the installation platform.

2. The protection system for a floating offshore photovoltaic platform according to claim 1, characterized in that: At least two rows of the first air inlet holes are provided on the first branch pipe. In the same first air extraction unit, the first air inlet holes on two connected first branch pipes are staggered, and / or the first air inlet holes in two adjacent rows on the same first branch pipe are staggered.

3. The protection system for a floating offshore photovoltaic platform according to claim 1, characterized in that: It includes a baffle assembly corresponding to the first air extraction unit, and the baffle assembly includes a baffle arranged in a one-to-one correspondence with the first branch pipe. The baffle is rotatably arranged relative to the first branch pipe, and the baffle has a first position and a second position. In the first position, the baffle is arranged at an angle to the line connecting two adjacent first branches. In the second position, the baffle and the line connecting the two first branches are parallel to or overlap with each other.

4. The protection system for a floating offshore photovoltaic platform according to claim 3, characterized in that: It includes a driving assembly arranged corresponding to the first air extraction unit, and the driving assembly includes a driving rod and a transmission rod. The driving rod is connected to the transmission rod for driving the transmission rod to rotate. The transmission rod is arranged corresponding to the first branch pipe. The transmission rod is sleeved on the first branch pipe and rotates with the first branch pipe. The transmission rod is fixedly connected to the baffle, and a ring sleeve is fixed on the baffle, and the ring sleeve rotates with the first branch pipe.

5. The protection system for a floating offshore photovoltaic platform according to claim 4, characterized in that: The driving assembly includes a driving motor, a plurality of driving bevel gears and a plurality of driven bevel gears. The output end of the driving motor is coaxial with and fixedly connected to the driving rod. The driving bevel gear is fixed to the driving rod, and the driven bevel gear is fixed to the transmission rod. The driving bevel gear and the driven bevel gear are meshed with each other.

6. The protection system for a floating offshore photovoltaic platform according to claim 1, characterized in that: The ventilation component includes a heating unit, which is arranged below the drying unit and is used to heat the dried air in the ventilation duct.

7. The protection system for a floating offshore photovoltaic platform according to claim 1, characterized in that: It includes a controller and a detection unit, the controller is electrically connected to the ventilation unit, the condensing unit, the drying unit and the detection unit respectively, the detection unit includes a visibility detector, the visibility detector is used to transmit the measurement value to the controller, and the controller is used to control the operation of the ventilation unit, the condensing unit and the drying unit when the measurement value exceeds a first set range.

8. The protection system for a floating offshore photovoltaic platform according to claim 7, characterized in that: It includes a humidity detector, which is electrically connected to the controller. The humidity detector is used to detect the ambient humidity in the guardrail and transmit the humidity to the controller. The controller is used to determine whether the detection value of the humidity detector is within a second setting range when the measurement value of the visibility detector exceeds the first setting range. If the humidity value detected by the humidity detector exceeds the second setting range, the controller drives the ventilation unit, the condensing unit and the drying unit to operate. If the humidity value detected by the humidity detector is within the second setting range, the controller outputs an alarm signal of "visibility detector failure".

9. The protection system for a floating offshore photovoltaic platform according to claim 8, characterized in that: The system comprises a timer and a remote control center, wherein the timer is electrically connected to the controller, and the controller is used to control the timer to start timing when the humidity value detected by the humidity detector exceeds a second set range, and to control the timer to stop timing when the humidity value detected by the humidity detector is within the second set range. The controller is communicatively connected to the remote control center and is used to send a "system failure" alarm signal to the remote control center when the value of the timer exceeds a set value.

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