Rainwater collection, storage and utilization device for photovoltaic power station

Abstract

The utility model belongs to the technical field of rainwater recovery, and provides a rainwater collection and utilization device for a photovoltaic power station, which comprises a water catchment unit, a collection unit and a water storage unit, the collecting unit comprises a confluence plate and a rainwater collecting pipe, the confluence plate is connected to the lower edge of the photovoltaic module, the rainwater collecting pipe is arranged below the confluence plate, and the rainwater collecting pipe can convey collected rainwater to the water storage unit. Under the condition that normal power generation of the photovoltaic cell panel is not influenced and the stability of the photovoltaic assembly is not changed, rainwater resources in an area can be efficiently collected, safe operation can be achieved under the unattended condition, and good conditions are created for collection, storage and utilization of the rainwater resources.

Description

Technical Field

[0001] The utility model belongs to the technical field of rainwater recycling, and in particular relates to a rainwater collection and utilization device for a photovoltaic power station. Background Art

[0002] Under the background of the "dual carbon" goal, green and clean energy represented by photovoltaic power generation has become an important force in adjusting China's energy structure and promoting sustainable development of regional economy. Large-scale photovoltaic power stations are mainly distributed in ecologically fragile areas such as the northwest Gobi and desert wasteland. Due to local water resources, these areas have sparse vegetation and limited industrial development. The comprehensive benefits of photovoltaic power stations can be better exerted through rainwater collection and utilization.

[0003] In recent years, the "photovoltaic +" model has become a hot topic in the industry. After the construction of photovoltaic power stations, the existing photovoltaic modules are often used mainly for power generation, and rarely consider rainwater collection and storage, resulting in the lack of effective utilization of precious rainwater resources in the region, affecting the comprehensive benefits of photovoltaic power stations. Since photovoltaic solar panels are impermeable, photovoltaic power stations have become potential rainwater resource collection areas. Therefore, how to efficiently collect and utilize rainwater resources in photovoltaic power stations is a technical problem that needs to be solved in this field. Utility Model Content

[0004] The purpose of the utility model is to provide a rainwater collection and utilization device for a photovoltaic power station, which can efficiently collect rainwater resources in a region without affecting the normal power generation of photovoltaic panels and changing the stability of photovoltaic components, and can operate safely without supervision, thus creating good conditions for the collection and utilization of rainwater resources.

[0005] The technical solution adopted by the utility model is a rainwater collection and utilization device for a photovoltaic power station, comprising a water collection unit, a collection unit and a water storage unit. The water collection unit can block the water flow on the photovoltaic module from flowing out from the two sides of the photovoltaic module and the gap between the photovoltaic panels. The collection unit comprises a convergence plate and a rainwater collecting pipe. The convergence plate is connected to the lower edge of the photovoltaic module, and the rainwater collecting pipe is arranged below the convergence plate. The rainwater collecting pipe can transport the collected rainwater to the water storage unit.

[0006] Furthermore, the water collection unit includes a water retaining plate and a sealing strip. The water retaining plate is arranged on both sides of the photovoltaic component to block the water flow. The sealing strip is arranged at the junction of adjacent photovoltaic panels in the photovoltaic component to seal the gap between adjacent photovoltaic panels.

[0007] Furthermore, an L-shaped bracket is provided on the side of the photovoltaic component, one side of the L-shaped bracket is close to the back of the photovoltaic component, and the water retaining plate is clamped between the side of the photovoltaic component and the other side of the L-shaped bracket and is fixedly connected to the L-shaped bracket by a first fixing bolt, and the first fixing bolt is close to the photovoltaic component.

[0008] Furthermore, the busbar is fixedly connected to the bracket of the photovoltaic assembly via a second fixing bolt.

[0009] Furthermore, a connecting rod is fixedly mounted on the bracket of the photovoltaic component through a pipe clamp, a U-shaped bracket is arranged on the connecting rod, the rain collecting pipe is fixedly connected to the U-shaped bracket, and the rain collecting pipe is U-shaped with the U-shaped opening side facing the busbar.

[0010] Furthermore, the water storage unit includes a water tank, a water inlet pipe and a water outlet pipe, one end of the water inlet pipe is connected to the water tank and the other end is connected to the rainwater collecting pipe, the water outlet pipe is connected to the bottom of the water tank, and a water supply valve is installed on the water outlet pipe.

[0011] Furthermore, a filter screen is installed at the pipe opening where the water inlet pipe is connected to the water tank, and a movable handle is installed on the water tank.

[0012] The beneficial effects of the utility model are:

[0013] The utility model has the advantages of simple device, easy installation, light and durable, economical and reasonable equipment, and can efficiently collect rainwater resources in the area without affecting the normal power generation of photovoltaic panels and changing the stability of photovoltaic components. It can operate safely without supervision, creating good conditions for the collection and utilization of rainwater resources. The collected rainwater can be used for plant irrigation in photovoltaic power stations and water for cleaning photovoltaic panels, so as to give full play to the comprehensive benefits of photovoltaic power stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the water retaining plate of the utility model;

[0016] Figure 3 This is a schematic diagram of the installation structure of the manifold and rainwater collecting pipe of the utility model;

[0017] Explanation of the reference numerals: 1. water collection unit; 11. photovoltaic module; 12. water retaining plate; 121. L-shaped bracket; 122. first fixing bolt; 13. sealing strip; 2. collection unit; 21. collector plate; 211. second fixing bolt; 22. rainwater collecting pipe; 231. U-shaped bracket; 232. connecting rod; 233. pipe clamp; 4. water storage unit; 41. filter screen; 42. movable handle; 43. water supply valve; 44. water outlet pipe; 411. water storage tank; 412. water inlet pipe. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer and more understandable, the technical solution of the utility model will be further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model provides a rainwater collection and utilization device for a photovoltaic power station, comprising a water collection unit 1, a collection unit 2 and a water storage unit 4. The water collection unit 1 can block the water flow on the photovoltaic module 11 from flowing out from the two sides of the photovoltaic module 11 and the gap between the photovoltaic panels. When it rains, rainwater falls on the photovoltaic panel in the photovoltaic module 11. Since the photovoltaic panel is in an inclined state, under the action of the water collection unit 1, the water flow can only flow along the photovoltaic panel to its lower edge. The collection unit 2 comprises a convergence plate 21 and a rainwater collecting pipe 22. The convergence plate 21 is connected to the lower edge of the photovoltaic module 11, and the rainwater collecting pipe 22 is arranged below the convergence plate 21. The water flow flowing to the lower edge of the photovoltaic panel enters the rainwater collecting pipe 22 under the guidance of the convergence plate 21, and finally the rainwater collecting pipe 22 transports the collected rainwater to the water storage unit 4.

[0020] The water collection unit 1 includes a water retaining plate 12 and a sealing strip 13. The water retaining plate 12 is arranged on both sides of the photovoltaic component 11 to block the water flow. The sealing strip 13 is arranged at the junction of adjacent photovoltaic panels in the photovoltaic component 11 to seal the gap between adjacent photovoltaic panels. An L-shaped bracket 121 is arranged on the side of the photovoltaic component 11. One side of the L-shaped bracket 121 is close to the back of the photovoltaic component 11. The water retaining plate 12 is clamped between the side of the photovoltaic component 11 and the other side of the L-shaped bracket 121 and is fixedly connected to the L-shaped bracket 121 through a first fixing bolt 122. The first fixing bolt 122 is close to the photovoltaic component 11.

[0021] Preferably, the water retaining plate 12 is made of PVC board. To avoid its blocking effect on sunlight, the height is set to 3 cm. The water retaining plate 12 is vertically fixed to the edges of both sides of the photovoltaic module 11 using an L-shaped bracket 121 to prevent rainwater from splashing out and flowing sideways. The sealing strip 13 is made of plastic material and filled in the gap between the photovoltaic panels to prevent rainwater from flowing in and out of the gap. In the above manner, the photovoltaic module 11 forms a complete rainwater collection surface, fully collects rainwater resources falling on the photovoltaic module 11, and improves the rainwater resource collection rate.

[0022] The busbar 21 is fixedly connected to the bracket of the photovoltaic assembly 11 by means of a second fixing bolt 211 .

[0023] Preferably, the busbar 21 is made by cutting a PVC pipe and is fixed to the lower edge of the photovoltaic module 11 , so as to smoothly guide the rainwater on the photovoltaic module 11 into the rainwater collecting pipe 22 .

[0024] A connecting rod 232 is fixedly mounted on the bracket of the photovoltaic assembly 11 through a pipe clamp 233 . A U-shaped bracket 231 is provided on the connecting rod 232 . The rain collecting pipe 22 is fixedly connected to the U-shaped bracket 231 . The rain collecting pipe 22 is U-shaped with the U-shaped opening side facing the collector plate 21 .

[0025] The rainwater collecting pipe 22 is a U-shaped open pipe, preferably made of PVC pipe with a diameter of 10 cm, and is arranged below the manifold 21. One end of the rainwater collecting pipe 22 away from the water storage unit 4 is blocked with a plug to prevent rainwater resources from overflowing, and the other end is connected to the water storage unit 4.

[0026] The U-shaped bracket 231 is welded to the connecting rod 232, and the connecting rod 232 is connected to the bracket of the photovoltaic module 11 through the pipe clamp 233, so as to form a stable supporting structure, so that the rain collecting pipe 22 can be firmly fixed under the busbar 21, making full use of the space at the bottom edge of the photovoltaic module 11.

[0027] It should be noted that when installing the rain collecting pipe 22, it should be adaptively adjusted according to the position of the convergence plate 21 to ensure that the slope ratio of the rain collecting pipe 22 is between 1% and 3%, so that the collected rainwater can quickly flow to the water storage unit 4; the length of the convergence plate 21 and the rain collecting pipe 22 should also be adjusted in real time according to the length of the photovoltaic module 11. Each section of the component is fixedly connected with U-PVC adhesive and reinforced with stainless steel screws. Sealant is used at the outer joints of each part to prevent rainwater leakage.

[0028] The water storage unit 4 includes a water tank 411, a water inlet pipe 412 and a water outlet pipe 44. One end of the water inlet pipe 412 is connected to the water tank 411 and the other end is connected to the rainwater collecting pipe 22. The water outlet pipe 44 is connected to the bottom of the water tank 411. A water supply valve 43 is installed on the water outlet pipe 44. A filter net 41 is installed at the pipe mouth where the water inlet pipe 412 is connected to the water tank 411. A movable handle 42 is installed on the water tank 411.

[0029] The water tank 411 is preferably a horizontal water tank, made of ABS material, and has good characteristics such as lightness, corrosion resistance and pressure resistance. Considering the terrain restrictions of the photovoltaic power station, its size specifications should be reasonably selected according to the space. The top is a circular water inlet hole for connecting to the water inlet pipe 412, and a mobile handle 42 is installed on the side to facilitate the flexible placement of the water tank 411 and save effort when moving. The water supply valve 43 and the outlet pipe 44 at the bottom are used to control the use of rainwater resources.

[0030] Preferably, the water inlet pipe 412 is a PVC pipe with a diameter of 10 cm. Since photovoltaic power stations are mostly located in areas with frequent wind and sand activities, the rainwater collected by the photovoltaic modules is very likely to carry mud and other debris. To ensure the efficient operation of the system, a filter screen 41 must be installed at the pipe mouth where the water inlet pipe 412 is connected to the water storage tank 411. Preferably, a double-layer filter screen with 80 mesh and 20 mesh is designed for easy installation and replacement. The collected rainwater passes through the filter screen 41 in turn and then enters the water storage tank 411, which can effectively avoid the deposition of impurities in the rainwater storage facility, thereby quickly filtering the rainwater and ensuring the stable operation of the later utilization system.

[0031] In order to facilitate the allocation and utilization of rainwater resources, the end of the outlet pipe 44 at the bottom of the water tank 41 can be connected to an irrigation pipe to transport the stored rainwater to the use end for irrigation of ground plants in the photovoltaic power station or cleaning of photovoltaic panels and other related work.

[0032] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A rainwater collection and utilization device for a photovoltaic power station, characterized in that: It includes a water collection unit, a collection unit and a water storage unit. The water collection unit can block the water on the photovoltaic module from flowing out from the two sides of the photovoltaic module and the gap between the photovoltaic panels. The collection unit includes a collection plate and a rainwater collecting pipe. The collection plate is connected to the lower edge of the photovoltaic module, and the rainwater collecting pipe is arranged below the collection plate. The rainwater collecting pipe can transport the collected rainwater to the water storage unit.

2. The rainwater collection and utilization device for a photovoltaic power station according to claim 1, characterized in that: The water collection unit includes a water retaining plate and a sealing strip. The water retaining plate is arranged on both sides of the photovoltaic component to block the water flow. The sealing strip is arranged at the junction of adjacent photovoltaic panels in the photovoltaic component to seal the gap between adjacent photovoltaic panels.

3. The rainwater collection and utilization device for a photovoltaic power station according to claim 2, characterized in that: An L-shaped bracket is set on the side of the photovoltaic component, one side of the L-shaped bracket is close to the back of the photovoltaic component, the water retaining plate is clamped between the side of the photovoltaic component and the other side of the L-shaped bracket and is fixedly connected to the L-shaped bracket through a first fixing bolt, and the first fixing bolt is close to the photovoltaic component.

4. The rainwater collection and utilization device for a photovoltaic power station according to claim 1, characterized in that: The busbar is fixedly connected to the bracket of the photovoltaic assembly via a second fixing bolt.

5. The rainwater collection and utilization device for a photovoltaic power station according to claim 1, characterized in that: A connecting rod is fixedly mounted on the bracket of the photovoltaic component through a pipe clamp, a U-shaped bracket is arranged on the connecting rod, the rain collecting pipe is fixedly connected to the U-shaped bracket, and the rain collecting pipe is U-shaped with the U-shaped opening side facing the collector plate.

6. The rainwater collection and utilization device for a photovoltaic power station according to claim 1, characterized in that: The water storage unit comprises a water tank, a water inlet pipe and a water outlet pipe, one end of the water inlet pipe is connected to the water tank and the other end is connected to the rainwater collecting pipe, the water outlet pipe is connected to the bottom of the water tank, and a water supply valve is installed on the water outlet pipe.

7. The rainwater collection and utilization device for a photovoltaic power station according to claim 6, characterized in that: A filter screen is installed at the pipe opening where the water inlet pipe is connected to the water storage tank, and a movable handle is installed on the water storage tank.

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