Water filtering device for cleaning water surface photovoltaic panel
By introducing a water guide tank and filtering mechanism into the water surface photovoltaic panel cleaning device, step-by-step filtration of cleaning water is achieved, solving the pollution problem of direct discharge of cleaning sewage into the water area, and protecting the water area ecology.
Patent Information
- Application Number
- CN202422354112.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In the prior art, the cleaning sewage generated after the cleaning of the water surface photovoltaic panel is directly discharged into the water area, resulting in water pollution and affecting the ecological environment.
A water filtration device for cleaning water surface photovoltaic panels is designed, including a water guide tank and a filter mechanism. The cleaning water is introduced into the filter mechanism through the water guide tank for stages and then discharged into the water area. The filter mechanism is composed of multiple filter units, and the filter material is made of geological polymer or activated carbon particles.
Through the filtering device, pollutants in the cleaning water are reduced, pollution to the water area is reduced, and the ecological environment of the water area is protected.
Smart Images
Figure CN223112536U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic panels, in particular to a water filtering device for cleaning a water surface photovoltaic panel. Background Technique
[0002] Since solar photovoltaic panels cover a large area and land resources on land are limited, water surface photovoltaic power stations are highly favored. The application mode of water surface solar photovoltaic not only effectively utilizes water resources, but also makes full use of solar energy resources, with remarkable environmental and economic benefits.
[0003] Regarding the solar power generation efficiency, it is greatly affected by the surface cleanliness of the photovoltaic panel. Research shows that the solar power generation improvement rate before and after cleaning the photovoltaic panel is as high as 5% - 20%.
[0004] Therefore, in related technologies, a cleaning device is usually set up near the solar photovoltaic to clean the photovoltaic panel, such as cleaning by spraying or rain flushing.
[0005] However, in this cleaning method, the cleaning sewage generated during the cleaning process will directly flow into the water area where the solar photovoltaic is installed, which is likely to cause certain pollution to the water area and is not conducive to the ecological environment of the water area, so it still needs to be improved. Content of the Utility Model
[0006] In order to solve at least one technical problem mentioned in the background technique, the purpose of the utility model is to provide a water filtering device for cleaning a water surface photovoltaic panel.
[0007] To achieve the above purpose, the utility model provides the following technical solution:
[0008] A water filtering device for cleaning a water surface photovoltaic panel includes a water guiding groove and a filtering mechanism. The top of the water guiding groove is open to form a water receiving port, and the water receiving port is located below the lower end of the photovoltaic panel for receiving the cleaning water flowing down from the lower end of the photovoltaic panel; the water guiding groove has a water outlet end, and the filtering mechanism includes a water inlet side and a water outlet side. The water inlet side of the filtering mechanism is connected to the water outlet end of the water guiding groove for receiving the cleaning water output from the water outlet end of the water guiding groove, and the cleaning water is filtered by the filtering mechanism and discharged from the filtering mechanism through the water outlet side.
[0009] Compared with the prior art, the advantages of adopting this solution are:
[0010] In this solution, by setting a water guide groove and a filtering mechanism, when the surface of the photovoltaic panel is cleaned, the cleaning water generated after cleaning (i.e., cleaning wastewater) will slide down along the surface of the photovoltaic panel and finally fall into the water guide groove. The water guide groove will introduce it into the filtering mechanism for filtering, and the filtered cleaning water will be discharged into the water area. In this way, the cleaning water is filtered before being discharged into the water area, thereby reducing the pollutants in the water and reducing the pollution to the water area, which is beneficial to protecting the ecology of the water area.
[0011] As an alternative embodiment of the present utility model, the water guide groove is inclined, and the low end of the water guide groove forms the water outlet end.
[0012] As an alternative embodiment of the present utility model, the filtering mechanism includes a number of filtering units arranged in sequence along the water flow direction, and along the water flow direction, the filtering levels of each filtering unit increase in sequence.
[0013] As an alternative embodiment of the present utility model, the filtering mechanism includes a container, and the internal space of the container forms a number of filtering spaces arranged in sequence along the water flow direction. Adjacent two filtering spaces are communicated, and each filtering space is filled with filter media to form the filtering unit.
[0014] As an alternative embodiment of the present utility model, a number of partition plates are provided in the container, and the internal space of the container is separated by the partition plates to form the filtering spaces; the partition plates are provided with through holes for communicating adjacent two filtering spaces.
[0015] As an alternative embodiment of the present utility model, along the water flow direction, the water outlet side is arranged in the filtering space at the end, and / or along the water flow direction, the water inlet side is arranged in the filtering space at the beginning.
[0016] As an alternative embodiment of the present utility model, along the water flow direction, at least one water outlet hole is opened on the end wall of the filtering space at the end to form the water outlet side, and / or along the water flow direction, the top of the filtering space at the beginning is opened to serve as the water inlet side, and the water outlet end of the water guide groove extends to the upper part of the water inlet side.
[0017] As an alternative embodiment of the present utility model, it further includes a bracket, and the water guide groove and / or the filtering mechanism are installed on the bracket.
[0018] As an alternative embodiment of the present utility model, the bracket includes a floating plate, the water guide groove is installed on the floating plate through a first mounting frame, and / or the filtering mechanism is installed on the floating plate through a second mounting frame.
[0019] As an alternative embodiment of the present utility model, the first mounting frame is provided with a U-shaped support arm, and the water guide groove is installed on the support arm and supported and fixed by the support arm.
[0020] Other advantages and effects of the present utility model will be specifically explained in the specific implementation manner and the accompanying drawings section. Description of the Drawings
[0021] Figure 1 is a schematic structural diagram of the present utility model;
[0022] Figure 2 is a cross-sectional view of the filtering mechanism of the present utility model. Specific Implementation Manner
[0023] The following explains and illustrates the technical solutions of the embodiments of the present utility model with reference to the accompanying drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.
[0024] In the following description, terms indicating directions or positional relationships such as "inner", "outer", "upper", "lower", "left", "right", etc. are only for the convenience of describing the embodiments and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0025] The floating photovoltaic panel mainly refers to the photovoltaic panel installed on the water area, generally installed on the water surface by using a fixed frame or a floating board. Since the surface of the photovoltaic panel is used for a long time, some pollutants will adhere to it, such as dust, bird droppings, etc., which will affect the performance of the photovoltaic panel; therefore, a spraying mechanism is generally arranged around the photovoltaic panel for cleaning. Generally, in rainy days, the surface of the photovoltaic panel is directly washed by rainwater, and in sunny days, the spraying mechanism extracts water from the water area (such as a pond) and sprays it on the surface of the photovoltaic panel for cleaning. Generally speaking, when the photovoltaic panel 1 is installed, it has a certain inclination. For this reason, in this embodiment, the higher end of the photovoltaic panel is denoted as the high end, and conversely, the lower end is denoted as the low end.
[0026] When water cleans the surface of the photovoltaic panel, it will flow downward along the inclined surface of the photovoltaic panel 1 and finally flow into the water area. In this way, the water will carry the pollutants on the photovoltaic panel and flow into the water area together, affecting the ecology of the water area. Based on this, in order to reduce the influence of the cleaning water bringing too many pollutants into the water area on the ecological environment of the water area, as Figure 1 and Figure 2 shown, this embodiment provides a filtering device for the cleaning water of the floating photovoltaic panel; it can be understood that the cleaning water here refers to the sewage flowing down during the cleaning process of the photovoltaic panel.
[0027] As Figure 1As shown in the figure, a water filtration device for cleaning a water surface photovoltaic panel 1 provided in this embodiment includes a water guide tank 2 and a filtration mechanism.
[0028] The top of the water guide tank 2 is open to form a water inlet. In this embodiment, the water guide tank 2 is basically in the structure of a straight U-shaped groove. The function of the water guide tank 2 is to receive the cleaning water flowing down from the photovoltaic panel 1 and transport it to the filtration mechanism.
[0029] Among them, the water inlet of the water guide tank 2 is located below the lower end of the photovoltaic panel 1 for receiving the cleaning water flowing down from the lower end of the photovoltaic panel 1.
[0030] The water guide tank 2 has a water outlet end 21. In order to enable the cleaning water in the water guide tank 2 to automatically flow to the filtration mechanism, in this embodiment, the water guide tank 2 is inclined, and the lower end of the water guide tank 2 is open to form the water outlet end 21.
[0031] In this way, the water in the water guide tank 2 will flow along the inclined water guide tank 2 towards the lower end (i.e., the water outlet end 21) of the water guide tank 2 under the action of gravity.
[0032] The filtration mechanism includes an inlet side 3a and an inlet side 3b. The inlet side 3a of the filtration mechanism is connected to the water outlet end 21 of the water guide tank 2 for receiving the cleaning water output from the water outlet end 21 of the water guide tank 2. After being filtered by the filtration mechanism, the cleaning water is discharged from the filtration mechanism through the inlet side 3b.
[0033] In this way, when cleaning the surface of the photovoltaic panel 1, the cleaning water (i.e., cleaning wastewater) generated after cleaning will slide down along the surface of the photovoltaic panel 1 and finally fall into the water guide tank 2. The water guide tank 2 will introduce it into the filtration mechanism for filtration, and the filtered cleaning water is then discharged into the water area. In this way, the cleaning water is filtered before being discharged into the water area, thereby reducing the pollutants in the water, reducing the pollution to the water area, and being beneficial to the ecology of the water area.
[0034] In addition, in order to fix the water guide tank 2 and the filtration mechanism, this embodiment further includes a bracket, and the water guide tank 2 and / or the filtration mechanism is installed on the bracket.
[0035] In some embodiments, the bracket includes a floating board 41. Here, the floating board 41 can be the floating board for installing the photovoltaic panel 1 or an additional floating board 41, which is specifically selected according to actual needs. For example, in this embodiment, the floating board 41 includes at least two, and the two floating boards 41 are arranged at intervals front and back.
[0036] The water guide trough 2 is installed on the floating plate 41 through the first mounting bracket 42. Specifically, there are several first mounting brackets 42, and the first mounting brackets 42 are fixedly spanned between the two floating plates 41. In addition, a U-shaped support arm 43 is provided on the first mounting bracket 42, and the water guide trough 2 is clamped in the U-shaped opening of the support arm 43 so that the water guide trough 2 is supported and fixed by the support arm 43. Of course, in order to improve the fixing effect, screws can also be passed through between the water guide trough 2 and the support arm 43 for fixing.
[0037] For the installation of the filtering mechanism, it can be that the filtering mechanism is installed on the floating plate 41 through the second mounting bracket 43. For example, the second mounting bracket 43 includes one or more, and the second mounting bracket 43 spans between the two floating plates 41 and is fixedly connected to the two floating plates 41 at both ends; and the filtering mechanism is fixedly installed on each second mounting bracket 43.
[0038] The filtering mechanism is mainly used to filter and adsorb the cleaning water. The filtering mechanism includes a number of filtering units arranged in sequence along the water flow direction. Among them, along the water flow direction, the filtering levels of the filtering units increase in sequence.
[0039] It should be noted that the water flow direction here refers to the flow direction of water in the filtering mechanism, and the increasing filtering level in sequence can be understood as that along the water flow direction, the later the filtering unit, the smaller the particle size of the impurities that can be filtered by it. In short, a step-by-step filtration is formed in this way.
[0040] Combined with Figure 2 As shown, the filtering mechanism includes a container 30. The internal space of the container 30 forms a number of filtering spaces 31 arranged in sequence along the water flow direction. For example, the container 30 has a rectangular frame structure. A number of partition plates 32 are provided in the container 30, and the internal space of the container 30 is separated by the partition plates 32 to form the filtering spaces 31. For example, 4 partition plates 32 are used to separate the internal space of the container 30 to form 5 filtering spaces 31.
[0041] Adjacent two filtering spaces 31 are communicated with each other. For example, through holes 321 for communicating adjacent two filtering spaces 31 are opened on the partition plates 32. In this way, it is ensured that the water filtered by the previous filtering space 31 can flow into the next filtering space 31 through the through holes 321.
[0042] In addition, each filtering space 31 is filled with filter media 33 to form the filtering unit. The filter media 33 here can be geopolymers particles formed by fly ash and biochar. Specifically, the specific preparation method of the geopolymer can be:
[0043] Using alkali-fused fly ash and biochar as raw materials, eggshell powder as a pore-forming agent, and sodium silicate as a mineral binder, the geopolymer is obtained through calcination treatment, including the following steps:
[0044] S1. Pass the biochar through a 200-mesh sieve to obtain 200-mesh biochar;
[0045] S2. Mix fly ash with solid NaOH in a certain proportion and calcine at a certain temperature to obtain alkali-fused fly ash;
[0046] S3. Mix the alkali-fused fly ash with the biochar to obtain an alkali-fused fly ash / biochar mixed powder;
[0047] S4. Prepare an aqueous solution containing sodium silicate under magnetic stirring conditions, add the mixed powder obtained in S3 and stir to obtain a slurry;
[0048] S5. Add an appropriate amount of eggshell powder to the above slurry and continuously stir for a period of time;
[0049] S6. Slowly pour the slurry obtained in S5 into a mold of 10mm * 10mm * 10mm, shake well to remove air bubbles, and then place it in a muffle furnace for calcination and curing for 2h to obtain the required geopolymer, i.e., the filter medium.
[0050] In other alternative embodiments, activated carbon particles can also be directly used as the filter medium.
[0051] In order to be able to take out the filter medium 33 in the filtration space 31 as a whole for replacement, the filter medium 33 can be filled in a filter bag (not shown in the figure), and then the filter bag is installed in the filtration space 31. In this way, when the filter medium 33 needs to be replaced, the filter bag can be directly extracted to replace the new filter medium 33.
[0052] In order to enable water to flow automatically in the filtration mechanism, in some embodiments, the bottom wall of the container 30 can be designed as an inclined surface structure. The end of the inclined surface close to the water outlet end 21 of the water guide groove 2 is the high end of the inclined surface. In this way, under the action of gravity, the water in the container 30 can flow forward automatically along the inclined bottom wall; of course, in some other embodiments, the container 30 can also be directly tilted at a certain angle, so that the bottom wall of the container 30 also presents a state of an inclined surface, and the automatic flow of water can also be realized.
[0053] Along the water flow direction, the water inlet side 3a is arranged in the filtration space 31 at the head end. For example, along the water flow direction, the top opening of the filtration space 31 at the head end is set as the water inlet side 3a, and the water outlet end 21 of the water guide groove 2 extends to the upper part of the water inlet side 3a. In this way, the water output from the water outlet end 21 of the water guide groove 2 will directly fall into the filtration space 31 at the head end, and then flow through each filtration space 31 in sequence to achieve step-by-step filtration.
[0054] In the water flow direction, the water inlet side 3b is provided at the end of the filtering space 31. For example, in the water flow direction, at least one water outlet hole is formed in the end wall of the filtering space 31 at the end, and the water outlet side 3b is constituted by the water outlet holes; the filtered water flows out from the water outlet holes and flows back into the water area.
[0055] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention.
Claims
1. A water filtration device for cleaning a floating photovoltaic panel, characterized in that, It includes a water guide trough and a filtering mechanism. The top of the water guide trough is open to form a water receiving port, and the water receiving port is located below the lower end of the photovoltaic panel for receiving the cleaning water flowing down from the lower end of the photovoltaic panel. The water guide trough has a water outlet end. The filtering mechanism includes a water inlet side and a water outlet side. The water inlet side of the filtering mechanism is connected to the water outlet end of the water guide trough for receiving the cleaning water output from the water outlet end of the water guide trough. After being filtered by the filtering mechanism, the cleaning water is discharged from the filtering mechanism through the water outlet side.
2. The water filtration device for cleaning a floating photovoltaic panel according to claim 1, wherein, The water guide trough is inclined, and the lower end of the water guide trough forms the water outlet end.
3. The water filtration device for cleaning a floating photovoltaic panel according to claim 1, characterized in that, The filtering mechanism includes a number of filtering units arranged in sequence along the water flow direction, and along the water flow direction, the filtering levels of the filtering units increase in sequence.
4. A water filtration device for cleaning a floating photovoltaic panel according to claim 3, characterized in that, The filtering mechanism includes a container, and the internal space of the container forms a number of filtering spaces arranged in sequence along the water flow direction. The adjacent two filtering spaces are communicated, and each filtering space is filled with filter media to form the filtering unit.
5. A water filtering device for cleaning a floating photovoltaic panel according to claim 4, characterized in that, A number of partition plates are provided in the container, and the internal space of the container is separated by the partition plates to form the filtering spaces; through holes for communicating the adjacent two filtering spaces are provided on the partition plates.
6. The water filtration device for cleaning a floating photovoltaic panel according to claim 5, wherein Along the water flow direction, the water outlet side is arranged in the filtering space at the end, and / or along the water flow direction, the water inlet side is arranged in the filtering space at the head.
7. A water filtration device for cleaning a floating photovoltaic panel according to claim 6, characterized in that, Along the water flow direction, at least one water outlet hole is opened on the end wall of the filtering space at the end to form the water outlet side, and / or along the water flow direction, the top of the filtering space at the head is open to serve as the water inlet side, and the water outlet end of the water guide trough extends to the upper part of the water inlet side.
8. A water filtration device for cleaning a floating photovoltaic panel according to claim 1, characterized in that, It further includes a bracket, and the water guide trough and / or the filtering mechanism are installed on the bracket.
9. The water filtration device for cleaning a floating photovoltaic panel according to claim 8, characterized in that, The bracket includes a floating plate, the water guide trough is installed on the floating plate through a first mounting rack, and / or the filtering mechanism is installed on the floating plate through a second mounting rack.
10. A water filtration device for cleaning a floating photovoltaic panel according to claim 9, characterized in that, A U-shaped support arm is provided on the first mounting rack, and the water guide trough is installed on the support arm and supported and fixed by the support arm.