Solar photovoltaic panel rainwater collecting and recycling system
By combining a water collection trough and a water tank, and utilizing regulating and driving components, rainwater can be effectively collected and reused, solving the problem of cleaning wastewater polluting the rainwater collection system and improving the efficiency of water resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2024-10-29
- Publication Date
- 2026-05-01
AI Technical Summary
Existing solar photovoltaic panel rainwater harvesting systems are prone to mixing cleaning wastewater into the rainwater harvesting system during the cleaning process, leading to water pollution, and it is difficult to effectively separate rainwater and wastewater.
A solar photovoltaic panel rainwater collection and reuse system was designed. Through the combination of a water collection trough and a water tank, the position of the water collection trough opening relative to the photovoltaic panel is adjusted by adjusting and driving components. Rainwater is filtered by a filter screen and introduced into the water tank through an inlet pipe to prevent wastewater from entering, thus achieving effective collection and reuse of rainwater.
It enables the effective collection and reuse of rainwater, avoids the pollution of rainwater in the tank by cleaning wastewater, simplifies the rainwater treatment process, and improves the efficiency of water resource utilization.
Smart Images
Figure CN121952192A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic panel accessories technology, specifically to a solar photovoltaic panel rainwater collection and reuse system. Background Technology
[0002] Solar photovoltaic (PV) panels convert solar energy into electricity. They are typically placed outdoors to receive direct sunlight during the day, and rainwater also drips directly onto them. To prevent rainwater buildup and to allow the panels to receive more sunlight, they are usually installed at an angle outdoors. Therefore, dust easily accumulates on the surface of solar PV panels, requiring regular cleaning.
[0003] Currently, some solar photovoltaic (PV) panels are equipped with rainwater harvesting systems to collect rainwater that drips from the panels. This collected rainwater is then reused for irrigation, cleaning, and ground washing. Rainwater is relatively clean and requires only simple treatment before it can be used as clean water. However, the wastewater from cleaning solar panels contains many impurities and chemical elements. Because current rainwater harvesting systems are directly fixed to the panel frames, they also allow this wastewater to flow into the system, polluting the rainwater collection system.
[0004] Based on the above background, there is an urgent need to design a system that collects rainwater but not wastewater generated from cleaning solar photovoltaic panels, so as to achieve effective utilization of water resources and reduce the difficulty of recycling rainwater / wastewater. Summary of the Invention
[0005] The purpose of this invention is to provide a solar photovoltaic panel rainwater collection and reuse system. Rainwater can be collected through structures such as water collection troughs, and after simple filtration, it can be temporarily stored in a water tank and reused for operations such as land irrigation. This system can also avoid the problem of discharging wastewater from cleaning solar photovoltaic panels into the water tank, which would pollute the water source in the tank.
[0006] This invention is achieved through the following technical solution: A solar photovoltaic panel rainwater collection and reuse system includes a water collection trough and a water tank. The water collection trough is equipped with a filter screen at its opening. The water collection trough is rotatably mounted on the lower frame of the solar photovoltaic panel via an adjustment component. The water collection trough is driven by a drive component to rotate the adjustment component to adjust the relative position of its opening with respect to the solar photovoltaic panel. The water collection trough is connected to the water tank via an inlet pipe, and the water tank is connected to an outlet pipe. The rainwater in the water tank is discharged through the outlet pipe and reused.
[0007] Furthermore, the adjustment assembly includes a connecting plate, a circular tube, and a rotating shaft. The rotating shaft is installed at both ends of the water collection tank, inserted into the circular tube, and rotatably connected to the circular tube. The connecting plate is fixedly connected to the outer wall of the circular tube, and the connecting plate is detachably connected to the frame of the solar photovoltaic panel through an external component.
[0008] Furthermore, the rotating shaft includes a round shaft and a mounting block. The mounting block is fixed to the end of the round shaft, and the round shaft is rotatably inserted into the round tube. The outer diameter of the mounting block is larger than that of the round shaft. A slot is provided on the end face of the mounting block opposite to the end of the round shaft, and the end of the water collection tank is inserted into the slot.
[0009] Furthermore, the drive assembly also includes an electromagnet, an iron block, and a torsion spring. The electromagnet is mounted on one side of the connecting plate, the iron block is fixed on the mounting block and works in conjunction with the electromagnet, and the mounting block is also provided with a locking pin. The locking pin and the iron block are located on both sides of the connecting plate, and the torsion spring is sleeved on the outside of the round tube. The two ends of the torsion spring are connected to the connecting plate and the locking pin, respectively. The drive assembly is used to drive the rotating shaft and drive the water collection tank to rotate.
[0010] Furthermore, a baffle is bolted to one end of the round shaft by fastening bolts. The outer diameter of the baffle is larger than that of the round shaft, and the baffle and the mounting block are located on opposite sides of the round tube.
[0011] Furthermore, one side of the water collection tank is higher than the other side, so that the opening of the water collection tank forms an inclined slope, and the slope faces away from the solar photovoltaic panel and tilts downward.
[0012] Furthermore, the water tank includes a tank body and a tank cover. The tank cover is detachably installed on the top of the tank body at the tank opening. The water inlet pipe passes through the tank cover and communicates with the inside of the tank body. The water outlet pipe passes through the tank cover and the water inlet of the water outlet pipe is located inside the tank body. The tank cover is also connected to an exhaust pipe, which connects the inside and outside of the water tank.
[0013] Furthermore, the water tank is also connected to an overflow pipe, with the other end of the overflow pipe located outside the tank and near the tank opening.
[0014] Furthermore, the bottom of the water tank is a funnel-shaped structure with the cone tip pointing downwards, and a drain outlet is provided at the bottom of the tank. The water tank is connected to a drain pipe through the drain outlet, and a valve is installed on the drain pipe.
[0015] Furthermore, one end of the overflow pipe is connected to the drain pipe; the other end is located outside the box and near the box opening, and the connection between the overflow pipe and the drain pipe is located above the valve installed on the drain pipe.
[0016] Furthermore, a miniature water pump is installed inside the tank, through which water in the tank is pumped out from the outlet pipe.
[0017] Furthermore, one of the outlet pipes of the water outlet is located above the top of the solar photovoltaic panel.
[0018] Furthermore, the outlet end of the exhaust pipe is located above the water collection tank, and the air outlet end of the exhaust pipe is provided with a bending section so that the outlet of the exhaust pipe faces downward.
[0019] Furthermore, a liquid level sensor is installed in the water tank.
[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects: This invention proposes a rainwater collection and reuse system for solar photovoltaic panels, comprising a collection trough and a water tank. The collection trough is rotatably mounted on the bottom edge of the solar photovoltaic panel via an adjusting component and a driving component. The driving component rotates the collection trough so that its opening is directly below the lower edge of the solar photovoltaic panel, allowing rainwater dripping onto the panel to slide down into the trough under gravity. Alternatively, the trough's opening can be rotated away from directly below the lower edge of the panel, preventing wastewater generated during panel cleaning from flowing into the trough or entering the water tank. A filter screen is installed at the trough's opening to pre-filter the collected rainwater, preventing large particles and other impurities from entering the trough and connected pipes, thus ensuring the system's normal operation. The collection trough is connected to the water tank via an inlet pipe, and the water tank is connected to an outlet pipe. Rainwater in the water tank is discharged through the outlet pipe for reuse. In this system, the water tank is preferably located below the water collection trough. With the help of the inlet pipe connected between the water collection trough and the water tank, the rainwater collected in the water collection trough automatically flows into the water tank for storage. The water in the water tank is discharged through the outlet pipe connected to the water tank for other uses (such as cleaning solar photovoltaic panels, irrigating land, etc.). Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a solar photovoltaic rainwater harvesting and reuse system.
[0022] Figure 2 yes Figure 1 A magnified view of region A in the image.
[0023] Figure 3 yes Figure 1 A magnified view of region B in the image.
[0024] Figure 4 It is a schematic diagram of the installation structure of structures such as shafts and round tubes.
[0025] Figure 5 This is a schematic diagram showing the distribution of slots on the mounting block.
[0026] Figure 6 This is a schematic diagram of the installation structure of the drive component between the connecting block and the rotating shaft.
[0027] Figure 7 This is a cross-sectional structural diagram of one embodiment of a water tank.
[0028] Figure 8 This is a structural diagram showing the water collection tank opening located directly below the lower edge of the solar photovoltaic panel.
[0029] Figure 9 This is a structural diagram showing the water collection tank when its opening is turned away from directly below the lower edge of the solar photovoltaic panel.
[0030] Among them, 100-round pipe, 110-connecting plate, 200-external component, 300-solar photovoltaic panel, 400-water collection tank, 410-filter screen, 500-rotating shaft, 510-round shaft, 520-mounting block, 521-slot, 530-clamping bolt, 540-fastening bolt, 550-baffle, 600-drive assembly, 610-electromagnet, 620-iron block, 630-torsion spring, 640-locking pin, 700-water tank, 710-box body, 720-box cover, 730-inlet pipe, 740-outlet pipe, 750-vent pipe, 760-overflow pipe, 770-sewage pipe, 780-valve, 790-miniature water pump. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0032] Example 1 This embodiment is the most basic implementation, a solar photovoltaic panel rainwater harvesting and reuse system, relating to the field of photovoltaic panel accessory technology, see reference. Figure 1 The system includes a water collection trough 400 and a water tank 700. A filter screen 410 is installed at the opening of the water collection trough 400. The water collection trough 400 is rotatably mounted on the lower frame of the solar photovoltaic panel 300 by an adjusting component. The relative position of the opening of the water collection trough 400 and the solar photovoltaic panel 300 is adjusted by a drive component 600 driving the adjusting component to rotate. The water collection trough 400 is connected to the water tank 700 through an inlet pipe 730. The water tank 700 is connected to an outlet pipe 740. Rainwater in the water tank 700 is discharged through the outlet pipe 740 and reused.
[0033] Example 2 This embodiment is a further optimization of Embodiment 1. The difference lies in that this embodiment proposes a cleverly designed and simple adjustment component, specifically including a connecting plate 110, a circular tube 100, and a rotating shaft 500. (See reference...) Figure 1 ,2 The rotating shaft 500 is installed at both ends of the water collection tank 400. The rotating shaft 500 is inserted into the round tube 100 and rotatably connected to the round tube 100. The outer wall of the round tube 100 is fixedly connected to the connecting plate 110. The connecting plate 110 is detachably connected to the frame of the solar photovoltaic panel 300 through the external component 200.
[0034] Example 3 Compared with Embodiments 1-2, this embodiment differs in that it proposes a preferred structure for the rotating shaft 500, as shown in the reference. Figure 1 , 2 4. The rotating shaft 500 includes a round shaft 510 and a mounting block 520. The mounting block 520 is fixed to the end of the round shaft 510. The round shaft 510 is rotatably inserted into the round tube 100. The outer diameter of the mounting block 520 is larger than that of the round shaft 510. A slot 521 is provided on the end face of the mounting block 520 away from the end of the round shaft 510. The end of the water collection tank 400 is inserted into the slot 521.
[0035] Example 4 Compared with embodiments 1-3, this embodiment differs in that it proposes a preferred structure for the drive component 600, as shown in the reference. Figure 1 , 2 6. Specifically, it includes an electromagnet 610, an iron block 620, and a torsion spring 630. The electromagnet 610 is installed on one side of the connecting plate 110. The iron block 620 is fixed on the mounting block 520 and works in conjunction with the electromagnet 610. The mounting block 520 is also provided with a locking pin 640. The locking pin 640 and the iron block 620 are located on both sides of the connecting plate 110, respectively. The torsion spring 630 is sleeved on the outside of the round tube 100. The two ends of the torsion spring 630 are connected to the connecting plate 110 and the locking pin 640, respectively. The drive assembly 600 is used to drive the rotating shaft 500 and drive the water collection tank 400 to rotate.
[0036] Example 5 The difference between this embodiment and embodiments 1-4 is that, in reference... Figure 1 , 4 One end of the round shaft 510 is bolted with a baffle 550 by a fastening bolt 540. The outer diameter of the baffle 550 is larger than that of the round shaft 510, and the baffle 550 and the mounting block 520 are located on opposite sides of the round tube 100.
[0037] Example 6 Compared with embodiments 1-5, the difference in this embodiment is that one side wall of the water collection tank 400 is higher than the other side wall. (Refer to...) Figure 8 This causes the opening of the water collection tank 400 to form an inclined slope, with the slope facing away from the solar photovoltaic panel 300 and tilting downwards.
[0038] Example 7 The difference between this embodiment and embodiments 1-6 is that, in reference to Figure 7 The water tank 700 includes a tank body 710 and a tank cover 720. The tank cover 720 is detachably installed on the top opening of the tank body 710. The water inlet pipe 730 passes through the tank cover 720 and communicates with the inside of the tank body 710. The water outlet pipe 740 passes through the tank cover 720 and the water inlet of the water outlet pipe 740 is located inside the tank body 710. The tank cover 720 is also connected to an exhaust pipe 750, which connects the inside and outside of the water tank 700.
[0039] Example 8 This embodiment is a further optimization of embodiment 7, the difference being that, as referenced... Figure 7 The water tank 700 is also connected to an overflow pipe 760, the other end of which is located outside the tank body 710 and near the tank opening.
[0040] Example 9 The difference between this embodiment and embodiments 1-8 is that, in reference to Figure 7 The bottom of the water tank 700 is a funnel-shaped structure with the cone tip pointing downwards. The bottom of the tank body 710 is provided with a drain port. The water tank 700 is connected to a drain pipe 770 through the drain port. A valve 780 is installed on the drain pipe 770.
[0041] Example 10 The difference between this embodiment and embodiments 1-9 is that, in reference to Figure 7 One end of the overflow pipe 760 is connected to the drain pipe 770; the other end is located outside the box 710 and near the box opening. The connection between the overflow pipe 760 and the drain pipe 770 is located above the valve 780 installed on the drain pipe 770.
[0042] Example 11 The difference between this embodiment and embodiments 1-10 is that, in reference to... Figure 7 The tank 710 is equipped with a miniature water pump 790, and the water in the tank 710 is pumped out through the miniature water pump 790 and the outlet pipe 740.
[0043] Example 12 The difference between this embodiment and embodiments 1-11 is that, in reference to... Figure 1 The outlet end of the exhaust pipe 750 is located above the water collection tank 400, and the outlet end of the exhaust pipe 750 is provided with a bend section so that the outlet of the exhaust pipe 750 faces downward.
[0044] Example 13 To facilitate public understanding of this solution, the following example, a preferred solar photovoltaic panel rainwater harvesting and reuse system, is used to further illustrate the solution with illustrations.
[0045] refer to Figure 1-9 The system includes a water collection trough 400 and a water tank 700. A filter screen 410 is installed at the opening of the water collection trough 400. The water collection trough 400 is rotatably mounted on the lower frame of the solar photovoltaic panel 300 by an adjusting component. The relative position of the opening of the water collection trough 400 and the solar photovoltaic panel 300 is adjusted by a drive component 600 driving the adjusting component to rotate. The water collection trough 400 is connected to the water tank 700 through an inlet pipe 730. The water tank 700 is connected to an outlet pipe 740. Rainwater in the water tank 700 is discharged through the outlet pipe 740 and reused.
[0046] In this embodiment, the adjustment component includes a connecting plate 110, a circular tube 100, and a rotating shaft 500. The rotating shaft 500 is installed at both ends of the water collection tank 400. The rotating shaft 500 is inserted into the circular tube 100 and rotatably connected to the circular tube 100. The connecting plate 110 is fixedly provided on the outer wall of the circular tube 100. The connecting plate 110 is detachably and fixedly installed on the frame of the solar photovoltaic panel 300 through the external component 200.
[0047] Optionally, the external component 200 can be any connection structure, as long as it can be installed on the frame of the solar photovoltaic panel 300 and has threaded holes. The connecting plate 110 is bolted to the connecting structure by screws, and the screws are screwed into the threaded holes, thereby detachably and fixedly installing the structural component consisting of the connecting plate 110 and the round tube 100 on the frame of the solar photovoltaic panel 300.
[0048] For example, the external component 200 may also include a locking block with a slot, the frame of the solar photovoltaic panel 300 is fitted into the slot of the locking block, a tightening screw is screwed into the locking block, the tightening screw tightens the frame of the solar photovoltaic panel 300 into the slot, and a threaded hole for bolting the screw is opened on the outer wall of the locking block.
[0049] There are two round tubes 100, and each round tube 100 is fixed with a connecting plate 110. Each connecting plate 110 is installed on the frame of the solar photovoltaic panel 300 through an external component 200. The two round tubes 100 are located on the lower sides of the solar photovoltaic panel 300 respectively.
[0050] In this embodiment, the water collection tank 400 is a long, narrow tank. A rotating shaft 500 is installed at both ends of the water collection tank 400. The rotating shafts 500 at both ends of the water collection tank 400 are rotatably inserted into two round tubes 100, thereby allowing the water collection tank 400 to be rotatably installed at the lower edge of the solar photovoltaic panel 300 frame. A drive assembly 600 is installed between the rotating shaft 500 and the connecting plate 110. This drive assembly 600 is used to drive the rotating shaft 500 to rotate the water collection tank 400.
[0051] The water tank 700 is connected to the water collection tank 400 through the water inlet pipe 730. The water tank 700 is located below the water collection tank 400. In this way, under the action of gravity, the rainwater collected in the water collection tank 400 will be guided into the water tank 700 through the water inlet pipe 730.
[0052] Optionally, the water tank 700 can be placed on the ground. As a preferred embodiment, the outer wall of the water tank 700 is provided with a pipe clamp. This pipe clamp is used to mount the water tank 700 onto a pole, which serves as a support for mounting the solar photovoltaic panel 300, thus raising the solar photovoltaic panel 300 off the ground. A water outlet pipe 740 is connected to the water tank 700 and is used to drain water from the water tank 700 for reuse of rainwater.
[0053] In practical use, when the solar photovoltaic panel 300 is not cleaned, the opening of the water collection tank 400 is located directly below the lower edge of the solar photovoltaic panel 300. When cleaning the solar photovoltaic panel 300, the drive component 600 drives the water collection tank 400 to rotate, so that the opening of the water collection tank 400 moves away from directly below the lower edge of the solar photovoltaic panel 300.
[0054] Therefore, the solar photovoltaic panel rainwater collection and reuse system provided in this embodiment uses a rotating shaft 500, a circular pipe 100, and a connecting plate 110 to rotatably mount a water collection trough 400 on the frame of the solar photovoltaic panel 300. A drive assembly 600 installed between the rotating shaft 500 and the connecting plate 110 drives the rotating shaft 500 to rotate the water collection trough 400. In the first state, the opening of the water collection trough 400 is located directly below the lower edge of the solar photovoltaic panel 300. Rainwater dripping onto the solar photovoltaic panel 300 will slide down the solar photovoltaic panel 300 into the water collection trough 400 under the action of gravity. When cleaning the solar photovoltaic panel 300, the drive assembly 600 drives the rotating shaft 500 to rotate the water collection trough 400, so that the wastewater from cleaning the solar photovoltaic panel 300 cannot flow into the water collection trough 400. With the help of the inlet pipe 730 connected between the water collection tank 400 and the water tank 700, the rainwater collected in the water collection tank 400 automatically flows into the water tank 700 for storage, and the water in the water tank 700 is discharged through the outlet pipe 740 connected to the water tank 700 for other uses (such as cleaning the solar photovoltaic panels 300, irrigating the land, etc.).
[0055] With the above structure, the solar photovoltaic panel 300 provided in this embodiment can only collect rainwater dripping from the solar photovoltaic panel 300 and will not collect wastewater from cleaning the solar photovoltaic panel 300. Therefore, it can effectively avoid the wastewater from cleaning the solar photovoltaic panel 300 from polluting the rainwater collected in the water tank 700.
[0056] In this embodiment, the water collection tank 400 is a U-shaped groove extending through both ends, and the water inlet pipe 730 is connected to the bottom of the middle section of the water collection tank 400. The rotating shaft 500 includes a round shaft 510 and a mounting block 520 integrally formed and fixed to one end of the round shaft 510. Optionally, the mounting block 520 is a circular block, and the mounting block 520 is coaxially arranged with the rotating shaft 500. Moreover, the outer diameter of the mounting block 520 is larger than that of the round shaft 510. The round shaft 510 is rotatably inserted into the round tube 100, and the mounting block 520 is placed outside the round tube 100. One end wall of the round tube 100 slides against the outer side wall of the mounting block 520, thereby allowing the rotating shaft 500 to rotate within the round tube 100. The mounting block 520 prevents the rotating shaft 500 from axially moving relative to the round tube 100.
[0057] A slot 521 is provided on the end face of the mounting block 520 opposite to the circular shaft 510, and the end of the water collection tank 400 is inserted into the slot 521. There are two rotating shafts 500, and the two ends of the water collection tank 400 are respectively inserted into the slots 521 on the mounting blocks 520 of the two rotating shafts 500, so that the water collection tank 400 is more securely installed on the lower edge of the solar photovoltaic panel 300 frame. More preferably, sealant is filled in the gap between the water collection tank 400 and the slot 521 for better sealing.
[0058] In order to make the water collection tank 400 more securely connected to the mounting block 520, in this embodiment, a screw hole communicating with the slot 521 is also provided on the outer side wall of the mounting block 520, and a clamping bolt 530 for pressing the water collection tank 400 into the slot 521 is screwed into the screw hole.
[0059] In this embodiment, a filter screen 410 is installed at the opening of the water collection tank 400 to prevent external debris (such as leaves) from entering the water collection tank 400. The installation method of the filter screen 410 at the opening of the tank is the same as that of the prior art, so it will not be described in detail here.
[0060] In this embodiment, one side of the water collection tank 400 is higher than the other side, thus forming an inclined slope at the opening of the water collection tank 400. Specifically, in the first state, the slope faces away from the solar photovoltaic panel 300 and tilts downwards. The filter screen 410 installed at the opening of the water collection tank 400 is also tilted, making it easier for impurities such as leaves falling on the filter screen 410 to slide off automatically. Furthermore, in the first state, the top of the higher side of the water collection tank 400 is directly below the lower edge of the frame of the solar photovoltaic panel 300. In the second state, the water collection tank 400 is rotated so that the outer wall of the higher side of the water collection tank 400 is directly below the lower edge of the frame of the solar photovoltaic panel 300. At this time, the opening of the water collection tank 400 faces the front and upper part of the solar photovoltaic panel 300, and the cleaning wastewater flows from the lower edge of the solar photovoltaic panel 300 to the outer wall of the water collection tank 400 and drips down.
[0061] Furthermore, when the drive assembly 600 drives the water collection tank 400 to rotate, it will also shake the water collection tank 400, causing the leaves on the filter screen 410 to fall off.
[0062] Ideally, in the first state, the angle between the filter 410 and the horizontal plane is 45°, and in the second state, the angle between the filter 410 and the horizontal plane is 90°, which makes it easier for leaves on the filter 410 to fall.
[0063] In this embodiment, a baffle 550 is bolted to the other end of the aforementioned circular shaft 510 by a fastening bolt 540. The baffle 550 is a circular plate with a through hole at its center and a threaded hole at the center of the other end of the circular shaft 510. The fastening bolt 540 passes through the through hole and is screwed into the threaded hole, thereby bolting the baffle 550 to the other end of the circular shaft 510. At this time, the baffle 550 and the mounting block 520 are located on both sides of the circular tube 100, and the end wall of the circular tube 100 slides against the outer wall of the baffle 550. This allows for further axial positioning and limiting of the rotating shaft 500.
[0064] In this embodiment, the driving assembly 600 includes an electromagnet 610, an iron block 620, and a torsion spring 630, wherein: The electromagnet 610 is mounted on one side of the connecting plate 110. Of course, a power supply is also included to power the electromagnet 610. Optionally, the power supply can be a storage device (such as a lithium battery) electrically connected to the solar photovoltaic panel 300. Of course, a wireless switch is also provided in the circuit connecting the electromagnet 610 and the power supply so as to control the on and off of the electromagnet 610 and the power supply.
[0065] One end of the iron block 620 is embedded in the mounting block 520, and the iron block 620 is located on the side close to the aforementioned round shaft 510 and on the side of the connecting plate 110. The iron block 620 corresponds to the aforementioned electromagnet 610 so as to cooperate with the electromagnet 610. When the electromagnet 610 is energized, it generates a magnetic attraction force to attract the iron block 620. When the electromagnet 610 is de-energized, the electromagnet 610 releases the iron block 620.
[0066] A locking pin 640 is also installed on the mounting block 520. The locking pin 640 is located on the side near the aforementioned round shaft 510. The locking pin 640 and the aforementioned iron block 620 are located on opposite sides of the connecting plate 110. A torsion spring 630 is sleeved on the aforementioned round tube 100, and both ends of the torsion spring 630 are respectively connected to the aforementioned connecting plate 110 and the locking pin 640. Of course, a C-type retaining ring can also be used instead.
[0067] In the first state, the electromagnet 610 is de-energized, the torsion spring 630 is in its natural state, the iron block 620 is separated from the electromagnet 610, and the connecting plate 110 abuts against the locking pin 640. In the second state, the electromagnet 610 is energized and generates magnetic attraction, thereby attracting the iron block 620 and driving the rotating shaft 500 composed of the mounting block 520 and the round shaft 510 to rotate, thus compressing the torsion spring 630. When the electromagnet 610 is de-energized, the torsion spring 630 releases its elastic potential energy and drives the rotating shaft 500 to rotate back to its original position.
[0068] Of course, the aforementioned drive component 600 can also be an electric motor, which is mounted on the aforementioned connecting plate 110. The output shaft of the electric motor is connected to the rotating shaft 500 through a transmission component (e.g., a gear transmission pair), and the electric motor is used to drive the rotating shaft 500 to rotate.
[0069] In this embodiment, the water tank 700 includes a tank body 710, a tank cover 720, and an exhaust pipe 750, wherein: The cover 720 is detachably mounted on the top opening of the box body 710 by means of screwing, snapping, or flange connection. The water inlet pipe 730 is connected to the cover 720 and communicates with the interior of the box body 710. The water outlet pipe 740 passes through the cover 720 and the water inlet end of the water outlet pipe 740 is located inside the box body 710. One end of the exhaust pipe 750 is connected to the cover 720 and communicates with the interior of the box body 710.
[0070] Rainwater collected by the collection trough 400 is introduced into the housing 710 through the inlet pipe 730, and air inside the housing 710 is expelled through the vent pipe 750 as water enters. The lid 720 prevents external debris (such as leaves) from falling into the housing 710 and also reduces water evaporation inside the housing 710. Optionally, the inlet pipe 730, the outlet pipe 740, and the vent pipe are all connected to the lid 720 by a plug-in method, allowing them to be easily removed from the lid 720.
[0071] In this embodiment, the water tank 700 also includes an overflow pipe 760. One end of the overflow pipe 760 is connected to the bottom of the water tank 700, while the overflow pipe 760 is snapped or glued to the outer wall of the tank body 710. The other end of the overflow pipe 760 is located outside the tank body 710 and near the tank opening, forming its outlet, which faces upwards. In this embodiment, the overflow pipe 760 is connected to the bottom of the water tank 700. The overflow pipe 760 can also serve as a liquid level monitoring pipe; the liquid level in the overflow pipe 760 corresponds to the liquid level in the tank body 710. When the tank body 710 is full, that is, when the liquid level in the tank body 710 reaches the tank opening, the water in the overflow pipe 760 will flow out from the outlet, thus achieving an overflow effect. Optionally, the overflow pipe 760 can be a transparent plastic pipe or a tempered glass pipe, thus facilitating the adjustment of liquid levels throughout.
[0072] The overflow pipe 760, designed in the above manner, can preferentially drain water or sediment (such as mud and sand) from the bottom of the tank 710 when the tank 710 is full, thereby ensuring that the water in the tank 710 is cleaner.
[0073] The other end of the aforementioned vent pipe 750 is located above the aforementioned water collection tank 400. When a large amount of sediment accumulates at the bottom of the tank 710, even if the liquid level inside the tank 710 is higher than the overflow port, the sediment blockage prevents the sediment from easily entering the overflow pipe 760, thus preventing it from easily being discharged and achieving the overflow function. However, as the liquid level rises, water enters the vent pipe 750, and the liquid level continues to rise, increasing the pressure inside the tank. The higher pressure then forces the sediment at the bottom of the tank 710 into the overflow pipe 760 for discharge. When the water level in the vent pipe 750 drops, it continues until the liquid level inside the tank is the same as the overflow port.
[0074] As described above, the water tank 700 provided in this embodiment also has the functions of preventing overflow pipe 760 from becoming clogged and self-cleaning, making it particularly suitable for outdoor installation. Specifically, self-cleaning can be understood as the process of first flushing away sediment at the bottom of the tank 710 when overflow pipe 760 overflows; preventing overflow pipe 760 from becoming clogged can be understood as the liquid in the vent pipe 750 increasing the pressure inside the tank 710 when overflow pipe 760 becomes clogged, thereby forcing the mud and sand blocking overflow pipe 760 into overflow pipe 760 for flushing away. Optionally, the vent pipe 750 in this embodiment is a rigid pipe.
[0075] More preferably, a bend section is provided at the other end of the exhaust pipe 750 so that the other end of the exhaust pipe 750 faces downward. This not only reduces the amount of water evaporation in the housing 710, but also prevents foreign objects from entering.
[0076] In this embodiment, the bottom of the water tank 700 is a funnel-shaped structure with the cone tip pointing downwards. A drain outlet is provided at the cone tip of the bottom of the water tank 700, and a drain pipe 770 is connected to the drain outlet. A valve 780 for controlling the on / off state is installed on the drain pipe 770. When it is necessary to manually drain the sediment in the tank 710 or to maintain the tank 710, the valve 780 is opened, allowing the sediment and sewage in the tank 710 to flow out from the drain pipe 770. Of course, when not draining, the valve 780 is normally closed. The valve 780 can be a manual ball valve or a solenoid valve.
[0077] One end of the overflow pipe 760 is connected to the drain pipe 770, and the connection between the overflow pipe 760 and the drain pipe 770 is located upstream of the valve 780. Thus, when no sewage is discharged, the sewage located at the bottom of the tank 710 is discharged through the overflow pipe 760.
[0078] In this embodiment, a micro water pump 790 is also installed inside the housing 710. The micro water pump 790 is also powered by the power supply and is electrically connected to the controller, so that the controller can be used to control the working state of the micro water pump 790. Optionally, the controller can be a chip.
[0079] Preferably, the miniature water pump 790 is a pump body with automatic liquid level control function, which can automatically start and stop according to the liquid level in the tank 710. This type of miniature water pump 790 is prior art, so it will not be described in detail here. In this way, when the liquid level in the tank 710 is higher than the threshold, the miniature water pump 790 automatically starts to pump water out of the tank 710, and when the liquid level in the tank 710 is lower than the threshold, the miniature water pump 790 automatically shuts off.
[0080] Of course, the miniature water pump 790 can also be a regular water pump.
[0081] The inlet end of the outlet pipe 740 is connected to the outlet end of the micro water pump 790, so that the micro water pump 790 can pump water from the housing 710 into the outlet pipe 740. The water coming out of the outlet pipe 740 can be used to clean the solar photovoltaic panels 300 or for irrigation, etc.
[0082] Optionally, a liquid level sensor can be installed inside the housing 710. The liquid level sensor is electrically connected to the controller to collect liquid level information inside the housing 710, so as to facilitate monitoring of the liquid level in the housing 710, or to control the start and stop of the micro pump based on this information.
[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.
Claims
1. A solar photovoltaic panel rainwater harvesting and reuse system, characterized in that: It includes a water collection trough (400) and a water tank (700). The trough (400) is equipped with a filter screen (410). The water collection trough (400) is rotated and installed on the lower frame of the solar photovoltaic panel (300) by an adjustment component. The water collection trough (400) is driven by a drive component (600) to rotate the adjustment component to adjust the relative position of its trough and the solar photovoltaic panel (300). The water collection trough (400) is connected to the water tank (700) through an inlet pipe (730). The water tank (700) is connected to an outlet pipe (740). The rainwater in the water tank (700) is discharged through the outlet pipe (740) and reused.
2. The solar photovoltaic panel rainwater harvesting and reuse system according to claim 1, characterized in that: The adjustment assembly includes a connecting plate (110), a round tube (100), and a rotating shaft (500). The rotating shaft (500) is installed at both ends of the water collection tank (400). The rotating shaft (500) is inserted into the round tube (100) and rotatably connected to the round tube (100). The connecting plate (110) is fixedly connected to the outer wall of the round tube (100). The connecting plate (110) is detachably connected to the frame of the solar photovoltaic panel (300) through an external component (200).
3. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 2, characterized in that: The rotating shaft (500) includes a round shaft (510) and a mounting block (520). The mounting block (520) is fixed to the end side of the round shaft (510). The round shaft (510) is rotatably inserted into the round tube (100). The outer diameter of the mounting block (520) is larger than that of the round shaft (510). A slot (521) is provided on the end face of the mounting block (520) away from the end of the round shaft (510). The end of the water collection tank (400) is inserted into the slot (521).
4. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 3, characterized in that: The drive assembly (600) also includes an electromagnet (610), an iron block (620), and a torsion spring (630). The electromagnet (610) is mounted on one side of the connecting plate (110). The iron block (620) is fixed on the mounting block (520) and works in conjunction with the electromagnet (610). The mounting block (520) is also provided with a locking pin (640). The locking pin (640) and the iron block (620) are located on both sides of the connecting plate (110). The torsion spring (630) is sleeved on the outside of the round tube (100). The two ends of the torsion spring (630) are connected to the connecting plate (110) and the locking pin (640) respectively. The drive assembly (600) is used to drive the rotating shaft (500) and drive the water collection tank (400) to rotate.
5. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 4, characterized in that: One end of the round shaft (510) is bolted with a baffle (550) by a fastening bolt (540). The outer diameter of the baffle (550) is larger than that of the round shaft (510), and the baffle (550) and the mounting block (520) are located on opposite sides of the round tube (100).
6. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 1, characterized in that: One side of the water collection tank (400) is higher than the other side, so that the opening of the water collection tank (400) forms an inclined slope, and the slope faces away from the solar photovoltaic panel (300) and tilts downward.
7. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 1, characterized in that: The water tank (700) includes a tank body (710) and a tank cover (720). The tank cover (720) is detachably installed on the top opening of the tank body (710). The water inlet pipe (730) passes through the tank cover (720) and communicates with the inside of the tank body (710). The water outlet pipe (740) passes through the tank cover (720) and the water inlet of the water outlet pipe (740) is located inside the tank body (710). The tank cover (720) is also connected to an exhaust pipe (750), which connects the inside and outside of the water tank (700).
8. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 7, characterized in that: An overflow pipe (760) is also connected to the water tank (700), and the other end of the overflow pipe (760) is located outside the tank body (710) and near the tank opening.
9. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 8, characterized in that: The bottom of the water tank (700) is a funnel-shaped structure with the cone tip pointing downwards. A drain port is provided at the bottom of the tank body (710). The water tank (700) is connected to a drain pipe (770) through the drain port. A valve (780) is installed on the drain pipe (770).
10. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 9, characterized in that: One end of the overflow pipe (760) is connected to the drain pipe (770); the other end is located outside the box (710) and near the box opening. The connection between the overflow pipe (760) and the drain pipe (770) is located above the valve (780) installed on the drain pipe (770).
11. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 9, characterized in that: A miniature water pump (790) is installed inside the housing (710), and water in the housing (710) is pumped out through the miniature water pump (790) and from the outlet pipe (740).
12. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 11, characterized in that: One outlet of the water outlet pipe (740) is located above the top of the solar photovoltaic panel (300).
13. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 7, characterized in that: The outlet end of the exhaust pipe (750) is located above the water collection tank (400), and the outlet end of the exhaust pipe (750) is provided with a bend section so that the outlet of the exhaust pipe (750) faces downward.
14. A solar photovoltaic panel rainwater harvesting and reuse system according to claim 7, characterized in that: A liquid level sensor is installed in the water tank (700).