Geothermal photovoltaic hybrid power generation system for aquatic environment

Abstract

The present application relates to the technical field of new energy comprehensive utilization, in particular to a geothermal photovoltaic hybrid power generation system for water environment, which comprises a floating platform, a support plate arranged above the floating platform, a support frame arranged on the support plate, and a photovoltaic panel installed on the support frame; a maintenance cabin is arranged below the floating platform, a maintenance opening is formed on one side of the maintenance cabin, and an openable maintenance cover is arranged at the maintenance opening; a sealing ring is arranged between the maintenance cover and the maintenance opening; a guide rail is arranged inside the maintenance cabin, a coil pipe frame is arranged in the maintenance cabin and can be pulled and moved along the guide rail, and heat exchange coil pipes are arranged on the coil pipe frame; a second mounting plate is arranged on the other side of the maintenance cabin, a joint pipe is arranged on the second mounting plate, and the joint pipe is communicated with a water supply pipe and a return water pipe; the water supply pipe and the return water pipe are used for being communicated with a geothermal heat exchange loop; and a flushing interface is arranged on the maintenance cabin and communicated with the inside of the maintenance cabin.

Description

Technical Field

[0001] This invention relates to the field of new energy comprehensive utilization technology, specifically to a geothermal photovoltaic hybrid power generation system for aquatic environments. Background Technology

[0002] With the continuous development of new energy technologies, the integrated application of photovoltaic power generation and geothermal energy utilization has gradually attracted attention. In aquatic environments such as lakes and reservoirs, deploying photovoltaic modules via floating platforms not only saves land resources but also utilizes the aquatic environment to cool the photovoltaic modules to a certain extent, which is beneficial to the stable operation of the photovoltaic system. Simultaneously, combining photovoltaic power generation systems with geothermal heat exchange systems can achieve comprehensive energy utilization, demonstrating promising application prospects.

[0003] In existing geothermal-photovoltaic hybrid systems in aquatic environments, the geothermal heat exchange structure is typically located below the water body or within a closed structure. The heat exchange coils operate in the aquatic environment for extended periods, making them susceptible to impurities, microorganisms, and sediments, leading to scaling, blockages, or biofouling. When the heat exchange coils require maintenance or replacement, existing systems often necessitate lifting or extensive disassembly of the entire equipment or floating platform, resulting in complex operations, high maintenance costs, and potential disruptions to continuous system operation.

[0004] Furthermore, some existing systems have shortcomings in their maintenance structure design. The arrangement between the maintenance port and the sealing and protective structures is not reasonable enough, which can easily lead to insufficient sealing reliability or poor protection effect. This increases the risk of water entering the equipment or impurities and organisms entering the heat exchange area, thereby reducing the stability and service life of the system. Therefore, this application provides a geothermal photovoltaic hybrid power generation system for aquatic environments to solve the problems of difficult maintenance of geothermal heat exchange structures and unsatisfactory protection and sealing effects in the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a geothermal-photovoltaic hybrid power generation system for aquatic environments to solve the problems mentioned in the background art.

[0006] The technical solution adopted by this application to solve its technical problem is: a geothermal photovoltaic hybrid power generation system for aquatic environments, comprising: a floating platform, a support plate disposed above the floating platform, a support frame disposed on the support plate, and photovoltaic panels installed on the support frame; a maintenance compartment is disposed below the floating platform, a maintenance port is opened on one side of the maintenance compartment, and an openable maintenance cover is provided at the maintenance port; a sealing ring is provided between the maintenance cover and the maintenance port;

[0007] The maintenance compartment is equipped with a guide rail, and the maintenance compartment is equipped with a coil frame that can be pulled and moved along the guide rail. A heat exchange coil is installed on the coil frame.

[0008] A second mounting plate is provided on the other side of the maintenance compartment. A connector pipe is provided on the second mounting plate. The connector pipe is connected to the water supply pipe and the water return pipe. The water supply pipe and the water return pipe are used to connect to the geothermal heat exchange circuit.

[0009] The maintenance compartment is equipped with a flushing port, which is connected to the interior of the maintenance compartment.

[0010] Preferably, the inspection cover is rotatably connected to the inspection compartment via a rotating rod to enable the opening and closing of the inspection cover.

[0011] Preferably, the maintenance compartment is provided with an extension plate, and a fixing pin is provided on the extension plate. The fixing pin is used to limit and lock the maintenance cover when the maintenance cover is closed.

[0012] Preferably, a detachable filter grille is provided on the outside of the inspection port, the filter grille being used to block water impurities or organisms from entering the inspection chamber.

[0013] Preferably, the filter grille is disposed on the outside of the inspection cover, and the filter grille does not participate in the sealing fit between the inspection cover and the inspection port.

[0014] Preferably, the pull-out end of the coil frame is provided with a first mounting plate, and the first mounting plate is provided with a handle so that the coil frame can be pulled out or pushed in along the guide rail.

[0015] Preferably, a sliding fit structure is provided between the coil frame and the guide rail, so that the coil frame can make a linear pulling motion along the guide rail.

[0016] Preferably, the second mounting plate is fixedly connected to the maintenance compartment, and the connector pipe passes through the second mounting plate to form a fixed end interface during the coil frame pulling process.

[0017] Preferably, the water supply pipe and the return water pipe correspond to the two ends of the heat exchange coil, forming a circulating heat exchange path for water supply, heat exchange, and return.

[0018] Preferably, the flushing port is located at the lower part or side of the maintenance compartment, and the flushing port is used to introduce flushing medium into the interior of the maintenance compartment and / or the heat exchange coil for flushing and maintenance.

[0019] The beneficial effects of this application are:

[0020] This application provides a geothermal-photovoltaic hybrid power generation system for aquatic environments, allowing personnel or equipment to enter the maintenance compartment for maintenance operations. An inspection cover is installed at the inspection port, rotatably connected to the maintenance compartment via a rotating rod, enabling the cover to open or close relative to the compartment. When closed, the cover covers the inspection port, thus sealing the interior of the maintenance compartment. A sealing ring is installed between the cover and the inspection port at their contact point. When the cover is closed, the sealing ring is pressed between the cover and the port, sealing the port and preventing water from entering the maintenance compartment. To ensure the stability of the cover when closed, an extension plate is installed on the outside of the maintenance compartment, with a fixing pin on the extension plate. When the cover is closed, the fixing pin engages with the cover to limit and secure it, preventing accidental opening due to external forces in the aquatic environment.

[0021] The geothermal-photovoltaic hybrid power generation system for aquatic environments provided in this application allows operators to pull the coil frame out of the maintenance compartment as a whole along the guide rail after opening the maintenance cover via a handle, or to push the coil frame back into the maintenance compartment after maintenance. Through the above structural design, the heat exchange coils are arranged in a modular form on the coil frame, enabling the rapid extraction, maintenance, cleaning, or replacement of the heat exchange coils.

[0022] The geothermal-photovoltaic hybrid power generation system for aquatic environments provided in this application allows for the introduction of cleaning fluid or clean water into the maintenance compartment through a flushing port during maintenance of the heat exchange coils or the interior of the maintenance compartment. This flushes the surface of the heat exchange coils or the interior of the maintenance compartment, thereby reducing scaling or impurity accumulation. Under normal operating conditions, the maintenance cover is closed, and the sealing ring seals the maintenance port. The supply and return water pipes deliver the heat exchange medium to the heat exchange coils to achieve geothermal heat exchange. When maintenance or cleaning of the heat exchange coils is required, the operator releases the fixing pins, opens the maintenance cover, removes the filter grille if necessary, and pulls the coil frame along the guide rail using the handle to perform maintenance, cleaning, or replacement of the heat exchange coils. After completion, the coil frame is pushed back into the maintenance compartment and the maintenance cover is closed.

[0023] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. These will be further described in detail below with reference to figures. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0026] Figure 3This is a schematic diagram of the inspection cover in the open state of the present invention;

[0027] Figure 4 This is a schematic diagram of the maintenance compartment structure of the present invention;

[0028] Figure 5 This is a schematic diagram of a partial internal structure of the maintenance compartment of the present invention;

[0029] Figure 6 This is a partial structural diagram of the interior of the maintenance compartment of the present invention from another perspective.

[0030] Drawing number explanation:

[0031] 1. Floating platform; 2. Support plate; 3. Support frame; 4. Photovoltaic panel; 5. Maintenance compartment; 6. Sealing ring; 7. Rotating rod; 8. Maintenance cover; 9. Extension plate; 10. Fixing pin; 11. Filter grid; 12. First mounting plate; 13. Handle; 14. Coil frame; 15. Heat exchange coil; 16. Guide rail; 17. Second mounting plate; 18. Connecting pipe; 19. Water supply pipe; 20. Water return pipe; 21. Flushing interface. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0034] Please refer to Figures 1 to 6 A geothermal-photovoltaic hybrid power generation system for aquatic environments includes a floating platform 1; the floating platform 1 is used to support the entire system and make it float stably on the water surface, and its structural form can be a box-type floating body, a combined pontoon-type floating body, or other floating structures that can meet the load-bearing requirements.

[0035] A support plate 2 is installed above the floating platform 1. The support plate 2 is fixedly connected to the upper surface of the floating platform 1 and serves as the installation foundation for the photovoltaic system. A support frame 3 is installed on the support plate 2. The support frame 3 is used to support and fix the photovoltaic panel 4, so that the photovoltaic panel 4 is arranged at a certain tilt angle to improve the photovoltaic power generation efficiency. The photovoltaic panel 4 is installed on the support frame 3 and is electrically connected to the external electrical system to convert solar energy into electrical energy.

[0036] like Figures 1-4 As shown, a maintenance compartment 5 is fixedly installed below the floating platform 1. The maintenance compartment 5 has a box-like structure, and its upper end is fixedly connected to the floating platform 1, so that the maintenance compartment 5 is suspended in the water. The maintenance compartment 5 is used to accommodate the coil structure and pipeline connection structure related to geothermal heat exchange, and its internal space can meet the needs of the coil frame 14 for pulling and moving. The maintenance compartment 5 can be made of corrosion-resistant materials, or an anti-corrosion coating can be applied to its outer surface to adapt to long-term use in the aquatic environment.

[0037] like Figure 3 and Figure 4 As shown, an access port is provided on one side of the maintenance compartment 5, allowing personnel or equipment to enter the compartment for maintenance operations. An access cover 8 is provided at the access port, and the access cover 8 is rotatably connected to the maintenance compartment 5 via a rotating rod 7, allowing the access cover 8 to rotate and open or close relative to the compartment 5. When the access cover 8 is closed, it covers the access port, thus sealing the interior of the maintenance compartment 5. A sealing ring 6 is provided between the access cover 8 and the access port. At the contact joint; when the inspection cover 8 is closed, the sealing ring 6 is pressed between the inspection cover 8 and the inspection port, thereby sealing the inspection port and preventing water from entering the interior of the inspection compartment 5 through the inspection port; to ensure the stability of the inspection cover 8 in the closed state, an extension plate 9 is provided on the outside of the inspection compartment 5, and a fixing pin 10 is provided on the extension plate 9; when the inspection cover 8 is closed, the fixing pin 10 cooperates with the inspection cover 8 to limit and fix the inspection cover 8, preventing the inspection cover 8 from being accidentally opened due to external force in the water environment.

[0038] like Figure 3 and Figure 4 As shown, a detachable filter grille 11 is installed on the outside of the inspection port. The filter grille 11 is used to block impurities, aquatic organisms, or floating objects in the water from entering the interior of the inspection compartment 5, thereby reducing the risk of contamination or coil blockage inside the inspection compartment 5. The filter grille 11 is installed on the outside of the inspection cover 8, and the filter grille 11 does not participate in the sealing fit between the inspection cover 8 and the inspection port. Through this structural arrangement, the filtration protection structure and the sealing structure are independent of each other, which not only ensures the sealing performance of the inspection port, but also achieves effective protection against external impurities. The filter grille 11 can be detachably connected to the inspection compartment 5 by means of screws, clips, etc., so as to be disassembled and installed during maintenance or cleaning.

[0039] like Figure 5 and Figure 6As shown, the maintenance compartment 5 is equipped with guide rails 16, which are fixedly installed on both sides of the inner wall of the maintenance compartment 5. The extension direction of the guide rails 16 is consistent with the opening direction of the maintenance port. A coil frame 14 is installed inside the maintenance compartment 5, and the coil frame 14 can be pulled out linearly along the guide rails 16. A heat exchange coil 15 is fixedly installed on the coil frame 14, and the heat exchange coil 15 is used to exchange heat with the medium in the geothermal heat exchange circuit. A first mounting plate 12 is installed at the end of the coil frame 14 near the maintenance port, and a handle 13 is installed on the first mounting plate 12. Through the handle 13, the operator can pull the coil frame 14 out of the maintenance compartment 5 as a whole along the guide rails 16 after opening the maintenance cover 8, or push the coil frame 14 back into the maintenance compartment 5 after maintenance. Through the above structural settings, the heat exchange coil 15 is arranged in a modular form on the coil frame 14, realizing the quick extraction, maintenance, cleaning or replacement of the heat exchange coil 15.

[0040] like Figure 6 As shown, a second mounting plate 17 is provided on the other side of the maintenance compartment 5, and the second mounting plate 17 is fixedly connected to the maintenance compartment 5; a connector pipe 18 is provided on the second mounting plate 17, and the connector pipe 18 is used as a connection interface between the heat exchange coil 15 and the external pipeline; the connector pipe 18 is connected to the water supply pipe 19 and the water return pipe 20 respectively, and the water supply pipe 19 and the water return pipe 20 are used to connect to the geothermal heat exchange circuit, thereby forming a circulating heat exchange path of water supply-heat exchange-return water; when the coil frame 14 is in the working position, the heat exchange coil 15 is connected to the water supply pipe 19 and the water return pipe 20 through the connector pipe 18.

[0041] like Figure 6 As shown, a flushing port 21 is provided on the maintenance compartment 5, which is connected to the interior of the maintenance compartment 5. When maintaining the heat exchange coil 15 or the interior of the maintenance compartment 5, cleaning fluid or clean water can be introduced into the maintenance compartment 5 through the flushing port 21 to flush the surface of the heat exchange coil 15 or the interior of the maintenance compartment 5, thereby reducing scale or impurity accumulation. Under normal operating conditions, the maintenance cover 8 is in a closed state, the sealing ring 6 seals the maintenance port, and the water supply pipe 19 and the return water pipe 20 deliver the heat exchange medium to the heat exchange coil 15 to realize the geothermal heat exchange function. When it is necessary to repair or clean the heat exchange coil 15, the operator releases the fixing pin 10, opens the maintenance cover 8, removes the filter grid 11 if necessary, and pulls out the coil frame 14 along the guide rail 16 through the handle 13 to repair, clean or replace the heat exchange coil 15. After completion, the coil frame 14 is pushed back into the maintenance compartment 5 and the maintenance cover 8 is closed.

[0042] Through all the above embodiments, the working principle of the present invention is as follows: Under normal working conditions, the floating platform 1 floats on the surface of the water, the support plate 2 is fixed above the floating platform 1, the support frame 3 is installed on the support plate 2, and the photovoltaic panel 4 is installed on the support frame 3; the photovoltaic panel 4 generates photovoltaic power under sunlight and outputs or stores the generated electrical energy through an external electrical system.

[0043] Meanwhile, the maintenance compartment 5 is fixedly installed below the floating platform 1 and is in the water; the water supply pipe 19 and the return water pipe 20 are respectively connected to the external geothermal heat exchange circuit, and the heat exchange medium enters the interior of the maintenance compartment 5 through the water supply pipe 19 and enters the heat exchange coil 15 through the connector pipe 18.

[0044] The heat exchange coil 15 is fixedly installed on the coil frame 14, which is located inside the maintenance compartment 5 and is limited along the guide rail 16. During the flow of the heat exchange medium in the heat exchange coil 15, it forms heat exchange with the water environment or geothermal heat exchange circuit. After completing the heat exchange, it is discharged through the return water pipe 20, forming a circulating heat exchange path of water supply-heat exchange-return water.

[0045] During system operation, the inspection cover 8 is in a closed state, and the sealing ring 6 is set between the inspection cover 8 and the inspection port to seal the inspection port and prevent water from entering the interior of the inspection chamber 5; the fixing pin 10 limits the inspection cover 8 to keep it stable in the water environment; the filter grid 11 is set on the outside of the inspection port to block impurities or organisms in the water from entering the interior of the inspection chamber 5, thereby ensuring the cleanliness of the interior environment of the inspection chamber 5;

[0046] When the heat exchange coil 15 needs to be inspected, cleaned or replaced after long-term operation, the operator releases the fixing pin 10 and opens the inspection cover 8. If necessary, the filter grid 11 is removed. The coil frame 14 is pulled out of the maintenance compartment 5 along the guide rail 16 using the handle 13 to perform maintenance on the heat exchange coil 15. After maintenance, the coil frame 14 is pushed back into the maintenance compartment 5 so that the heat exchange coil 15 is reconnected to the water supply pipe 19 and the return water pipe 20 through the connector pipe 18. Then the inspection cover 8 is closed and the seal is restored.

[0047] When it is necessary to flush the inside of the maintenance compartment 5 or the heat exchange coil 15, flushing medium can be introduced into the maintenance compartment 5 through the flushing port 21 provided on the maintenance compartment 5 to flush the heat exchange coil 15 and the inside of the maintenance compartment 5, so as to reduce scale or impurity accumulation.

[0048] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary. Under the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0049] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A geothermal-photovoltaic hybrid power generation system for aquatic environments, comprising a floating platform (1), a support plate (2) disposed above the floating platform (1), a support frame (3) disposed on the support plate (2), and photovoltaic panels (4) mounted on the support frame (3); characterized in that: A maintenance compartment (5) is provided below the floating platform (1). An inspection port is opened on one side of the maintenance compartment (5), and an openable maintenance cover (8) is provided at the inspection port. A sealing ring (6) is provided between the maintenance cover (8) and the inspection port. The maintenance compartment (5) is provided with a guide rail (16), and the maintenance compartment (5) is provided with a coil frame (14) that can be pulled and moved along the guide rail (16). A heat exchange coil (15) is provided on the coil frame (14). A second mounting plate (17) is provided on the other side of the maintenance compartment (5). A connector pipe (18) is provided on the second mounting plate (17). The connector pipe (18) is connected to the water supply pipe (19) and the return water pipe (20). The water supply pipe (19) and the return water pipe (20) are used to connect to the geothermal heat exchange circuit. The maintenance compartment (5) is provided with a flushing port (21), which is connected to the interior of the maintenance compartment (5).

2. The geothermal-photovoltaic hybrid power generation system for aquatic environments according to claim 1, characterized in that, The inspection cover (8) is rotatably connected to the inspection compartment (5) via a rotating rod (7) to enable the opening and closing of the inspection cover (8).

3. The geothermal-photovoltaic hybrid power generation system for aquatic environments according to claim 2, characterized in that, An extension plate (9) is provided on the maintenance compartment (5), and a fixing pin (10) is provided on the extension plate (9). The fixing pin (10) is used to limit and lock the maintenance cover (8) when the maintenance cover (8) is closed.

4. The geothermal-photovoltaic hybrid power generation system for aquatic environments according to claim 3, characterized in that, A detachable filter grille (11) is provided on the outside of the inspection port. The filter grille (11) is used to block water impurities or organisms from entering the inspection chamber (5).

5. The geothermal-photovoltaic hybrid power generation system for aquatic environments according to claim 4, characterized in that, The filter grille (11) is located on the outside of the inspection cover (8), and the filter grille (11) does not participate in the sealing fit between the inspection cover (8) and the inspection port.

6. The geothermal-photovoltaic hybrid power generation system for aquatic environments according to claim 1, characterized in that, The pull-out end of the coil frame (14) is provided with a first mounting plate (12), and a handle (13) is provided on the first mounting plate (12) so that the coil frame (14) can be pulled out or pushed in along the guide rail (16).

7. The geothermal-photovoltaic hybrid power generation system for aquatic environments according to claim 6, characterized in that, A sliding fit structure is provided between the coil frame (14) and the guide rail (16) so that the coil frame (14) can make a linear pulling motion along the guide rail (16).

8. The geothermal-photovoltaic hybrid power generation system for aquatic environments according to claim 1, characterized in that, The second mounting plate (17) is fixedly connected to the maintenance compartment (5), and the connector pipe (18) passes through the second mounting plate (17) to form a fixed end interface during the pulling process of the coil frame (14).

9. The geothermal-photovoltaic hybrid power generation system for aquatic environments according to claim 1, characterized in that, The water supply pipe (19) and the return water pipe (20) correspond to the two ends of the heat exchange coil (15) respectively, forming a circulating heat exchange path for water supply, heat exchange and return.

10. The geothermal-photovoltaic hybrid power generation system for aquatic environments according to claim 1, characterized in that, The flushing port (21) is located at the lower part or side of the maintenance compartment (5), and the flushing port (21) is used to introduce flushing medium into the interior of the maintenance compartment (5) and / or the heat exchange coil (15) for flushing maintenance.

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