Reservoir trash holding slope structure of pumped storage power station

Abstract

The utility model relates to the technical field of pumped storage power stations, and provides a pumped storage power station reservoir trash holding slope structure which comprises a slope body, slope concrete and a filter screen structure. The slope concrete is arranged on the upstream face of the slope body. The filter screen structure is arranged on the upstream face of the side slope concrete; the filter screen structure comprises a plurality of filter screen units which are sequentially arranged in the length direction of the slope concrete; the filter screen unit comprises a mounting assembly, a filter screen sheet and a plurality of filter screen strips arranged on the upstream face of the filter screen sheet; the mounting assembly is connected with the filter screen piece and the side slope concrete. When the water level of the reservoir ascends and descends, floating objects in the near-shore area of the reservoir can be hung on the filter screen strips; due to the fact that the filter screen strips are in the inclined state, even if the water level rises and falls, the floating objects on the filter screen strips are difficult to escape, and therefore automatic collection of the water surface floating objects in the near-shore area of the reservoir is achieved without being limited by the water level height. And labor is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pumped storage power station technical field, concretely relates to a kind of pumped storage power station reservoir pollution blocking slope structure. BACKGROUND

[0002] Pumped storage power station is to solve the contradiction between supply and demand of power grid peak, valley and is generated, is a kind of way of indirect storage electric energy.Pumped storage power station includes lower reservoir, upper reservoir and reversible water turbine that the water of lower reservoir is pumped to upper reservoir.Based on the characteristics of pumped storage power station, the water level of its reservoir is in floating state, and the power station is usually established in mountainous area.The water surface of reservoir often has plant debris or driftwood, and the driftwood is often gathered in the shore area, and the conventional cleaning method is to manually use the cleaning pole with claws to salvage the driftwood, which is low in efficiency, time-consuming and laborious, and has high working intensity. SUMMARY

[0003] In view of the problems in the prior art, the present application provides a pumped storage power station reservoir pollution blocking slope structure, which solves the problems of low efficiency, time-consuming and laborious of the existing manual salvage cleaning method for the driftwood in the shore area of the reservoir.

[0004] The utility model provides a kind of pumped storage power station reservoir pollution blocking slope structure, comprising: slope body, slope concrete and filter screen structure;The slope concrete is set in the water surface of the slope body;The filter screen structure is set in the water surface of the slope concrete;The filter screen structure includes a plurality of filter screen units sequentially arranged along the length direction of the slope concrete;The filter screen unit includes mounting assembly, filter screen sheet and a plurality of filter screen strips arranged in the water surface of the filter screen sheet;The mounting assembly connects the filter screen sheet and the slope concrete;The length direction of the filter screen strip is set along the length direction of the slope concrete;The included angle a between the screen surface of the filter screen strip and horizontal plane is greater than or equal to 30 degrees, and less than or equal to 45 degrees;The included angle b between the screen surface of the filter screen strip and the screen surface of the filter screen sheet is greater than or equal to 60 degrees, less than or equal to 90 degrees.

[0005] Further, the mesh aperture of the screen surface of the filter screen strip is smaller than the mesh aperture of the screen surface of the filter screen sheet.

[0006] Further, a plurality of filter screen strips are spaced apart along the height direction of the filter screen sheet;The top of each filter screen strip and the bottom of the adjacent filter screen strip above it are in the same horizontal plane, and maintain a distance.

[0007] Further, the installation assembly comprises an installation block, a fixing sleeve and a threaded rod; the backwater surface of the filter screen is fixed with the installation block, and the installation block is provided with an installation hole; the fixing sleeve is anchored to the slope concrete; and the threaded rod is threaded with the fixing sleeve through the installation hole.

[0008] Further, the fixing sleeve of the installation assembly is two, the two fixing sleeves are oppositely spaced, the installation block is located between the two fixing sleeves, and the two ends of the threaded rod are respectively threaded with the two fixing sleeves.

[0009] Further, the installation assembly further comprises a rib, the rib is welded on the backwater surface of the filter screen, and the top of the rib is connected with the installation block.

[0010] Further, the water-facing surface of the slope concrete is provided with a limiting groove, and the rib is embedded in the limiting groove.

[0011] The beneficial effects of the utility model are: through setting the filter screen structure on the water-facing surface of the slope concrete, the plurality of filter screen strips of the filter screen structure are extended into the reservoir water body, when the water level of the reservoir rises and falls, the floating objects in the reservoir shore area can be hung on the filter screen strips; because the filter screen strips are in an inclined state, even if the water level rises and falls, the floating objects on the filter screen strips are also difficult to escape, thereby realizing the automatic collection of the water surface floating objects in the reservoir shore area, and being not limited by the water level height. Only the filter screen structure needs to be regularly disassembled to clean the floating objects thereon, compared with the traditional fishing mode, it is more labor-saving and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the reservoir pollution blocking slope structure of the pumped storage power station.

[0013] Figure 2 It is a structural schematic view of the reservoir pollution blocking slope structure of the pumped storage power station. Figure 1 It is a structural schematic view of the reservoir pollution blocking slope structure of the pumped storage power station.

[0014] Figure 3 It is a structural schematic view of the reservoir pollution blocking slope structure of the pumped storage power station. Figure 2 It is a structural schematic view of the reservoir pollution blocking slope structure of the pumped storage power station.

[0015] Figure 4 It is a structural schematic view of the reservoir pollution blocking slope structure of the pumped storage power station.

[0016] Figure 5 It is a structural schematic view of the reservoir pollution blocking slope structure of the pumped storage power station.

[0017] In the figure, 1-slope body; 2-slope concrete; 3-filter screen structure; 4-filter screen sheet; 5-filter screen strip; 6-mounting block; 7-fixing sleeve; 8-threaded rod; 9-mounting hole; 10-rib; 11-limiting groove; 12-floating object. DETAILED DESCRIPTION

[0018] The utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0019] As Figures 1-5 shown, the reservoir trash barrier slope structure of pumped storage power station comprises a slope body 1, slope concrete 2 and a filter screen structure 3.

[0020] The slope body 1 is a soil body arranged around the reservoir.

[0021] The slope concrete 2 is concrete cast on the water-facing surface of the slope body 1. The bottom of the slope concrete 2 has a platform extending to the bottom of the reservoir. The bottom of the filter screen structure 3 is seated on the platform.

[0022] The filter screen structure 3 is arranged on the water-facing surface of the slope concrete 2. The filter screen structure 3 comprises a plurality of filter screen units arranged in sequence along the length direction of the slope concrete 2. The specific number of filter screen units is determined by the length of the slope concrete 2.

[0023] Each filter screen unit comprises a mounting assembly, a filter screen sheet 4 and a plurality of filter screen strips 5 arranged on the water-facing surface of the filter screen sheet 4.

[0024] The length direction of the filter screen strip 5 is arranged along the length direction of the slope concrete 2. The plurality of filter screen strips 5 are arranged in intervals along the height direction of the filter screen sheet 4. The top of each filter screen strip 5 is in the same horizontal plane with the bottom of the filter screen strip 5 above it, and a distance is maintained.

[0025] As Figure 3 shown, the included angle a between the mesh surface of the filter screen strip 5 and the horizontal plane is greater than or equal to 30 degrees and less than or equal to 45 degrees. The included angle b between the mesh surface of the filter screen strip 5 and the mesh surface of the filter screen sheet 4 is greater than or equal to 60 degrees and less than or equal to 90 degrees. In this embodiment, the included angle a is 45 degrees, and the included angle b is 67 degrees.

[0026] Since the filter screen sheet 4 and the filter screen strip 5 are both arranged obliquely, when the floating objects 12 on the water surface of the reservoir gather towards the reservoir bank, they will be caught by the filter screen strip 5 or get stuck between two adjacent filter screen strips 5. The filter screen strip 5 restricts the floating objects 12 from moving away from the bank, so more and more floating objects 12 gather on the filter screen strip 5.

[0027] The mesh hole diameter of the mesh surface of the filter screen strip 5 is smaller than that of the mesh surface of the filter screen sheet 4. A part of the floating objects 12 will also be caught by the filter screen sheet 4.

[0028] For pumped storage power station, the water level of reservoir may change frequently, but in the embodiment, the filter strips 5 are arranged at intervals along the height direction of the filter sheet 4, so that even if the water level changes, there are filter strips 5 within a certain height range of the water surface.

[0029] The filter sheet 4 is detachably connected with the slope concrete 2 through the mounting assembly, so as to facilitate disassembly of the filter unit and cleaning of the floating objects 12 attached on the filter unit. Since the filter unit is independently connected with the slope concrete 2 through the mounting assembly, some filter units can be cleaned according to the adsorption amount of the floating objects 12 of the filter unit, thereby reducing the working intensity.

[0030] In the embodiment, the mounting assembly includes a mounting block 6, a fixing sleeve 7 and a threaded rod 8; the backwater surface of the filter sheet 4 is fixed with the mounting block 6, and the mounting block 6 is provided with a mounting hole 9; the fixing sleeve 7 is anchored to the slope concrete 2; and the threaded rod 8 passes through the mounting hole 9 and is threadedly connected with the fixing sleeve 7.

[0031] The fixing sleeve 7 of the mounting assembly has two, and the two fixing sleeves 7 are oppositely arranged at intervals, the mounting block 6 is located between the two fixing sleeves 7, and the two ends of the threaded rod 8 are threadedly connected with the two fixing sleeves 7, respectively. The mounting assembly further includes a rib 10, which is welded to the backwater surface of the filter sheet 4, and the top of the rib 10 is connected with the mounting block 6.

[0032] The water-facing surface of the slope concrete 2 is provided with a limiting groove 11, and the rib 10 is embedded in the limiting groove 11. Under the cooperation of the limiting groove 11 and the rib 10, the lateral displacement of the filter unit is limited. In particular, the rib 10 can adopt a trapezoidal structure in horizontal cross section. At the same time, the rib 10 can also play a role in reinforcing the filter sheet 4.

[0033] The rib 10 and the mounting block 6 at the top of the rib 10 can adopt an integral structure and can both be made of stainless steel strips.

[0034] The installation hole 9 on the installation block 6 is horizontally arranged, and when the rib 10 is inserted into the limiting groove 11, the installation block 6 is just located between the two fixing sleeves 7. Before the rib 10 is inserted into the limiting groove 11, the threaded rod 8 is matched with one of the fixing sleeves 7, and after the installation block 6 is located between the two fixing sleeves 7, the other end of the threaded rod 8 is screwed with the other fixing sleeve 7 through the installation hole 9 of the installation block 6, in this state, the threaded rod 8 passes through the installation block 6, and the two ends of the threaded rod 8 are screwed with the two fixing sleeves 7 respectively, so that the displacement of the installation block 6 is limited, and the displacement of the rib 10 and the filter screen 4 connected with the rib 10 is also limited. When it is needed to clean the filter screen 4, the threaded rod 8 above the filter screen 4 is disassembled, and then the filter screen 4 can be pulled out. When the filter screen 4 is pulled out of the reservoir, the filter screen rib 5 on the water surface of the filter screen 4 is also pulled out, and the floating object 12 attached to the filter screen 4 and the filter screen rib 5 is also separated from the water surface, after the floating object 12 is cleaned on the ground, the filter screen 4 is lowered to the reservoir, the rib 10 is embedded into the limiting groove 11, and the installation block 6 is fixed by the threaded rod 8.

[0035] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical scheme falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application also belong to the protection scope of the present application.

Claims

1. A pollution-blocking slope structure for a pumped-storage power station reservoir, characterized in that, include: The slope body, slope concrete, and filter structure are described. The slope concrete is located on the water-facing side of the slope body. The filter structure is located on the water-facing side of the slope concrete. The filter structure includes multiple filter units arranged sequentially along the length of the slope concrete. Each filter unit includes an installation component, a filter plate, and multiple filter strips located on the water-facing side of the filter plate. The installation component connects the filter plate and the slope concrete. The length of the filter strips is along the length of the slope concrete. The angle α between the mesh surface of the filter strip and the horizontal plane is greater than or equal to 30 degrees and less than or equal to 45 degrees. The angle b between the mesh surface of the filter strip and the mesh surface of the filter plate is greater than or equal to 60 degrees and less than or equal to 90 degrees.

2. The pollution-blocking slope structure of a pumped storage power station reservoir according to claim 1, characterized in that, The mesh size of the filter strip is smaller than that of the filter sheet.

3. The pollution-blocking slope structure of a pumped storage power station reservoir according to claim 1, characterized in that, Multiple filter strips are spaced apart along the height direction of the filter sheet; the top of each filter strip and the bottom of the filter strip adjacent above it are in the same horizontal plane and maintain a distance.

4. The pollution-blocking slope structure of a pumped storage power station reservoir according to claim 1, characterized in that, The installation assembly includes an installation block, a fixing sleeve, and a threaded rod; the installation block is fixed to the back surface of the filter screen, and the installation block is provided with an installation hole; the fixing sleeve is anchored to the slope concrete; the threaded rod passes through the installation hole and is threadedly connected to the fixing sleeve.

5. The pollution-blocking slope structure of a pumped storage power station reservoir according to claim 4, characterized in that, The mounting assembly has two fixing sleeves, which are arranged at intervals relative to each other. The mounting block is located between the two fixing sleeves, and the two ends of the threaded rod are threadedly connected to the two fixing sleeves respectively.

6. The pollution-blocking slope structure of a pumped storage power station reservoir according to claim 4, characterized in that, The mounting assembly also includes ribs welded to the back surface of the filter screen, with the top of the ribs connected to the mounting block.

7. The pollution-blocking slope structure of a pumped storage power station reservoir according to claim 6, characterized in that, The water-facing surface of the slope concrete is provided with a limiting groove, and the rib is embedded in the limiting groove.

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