Full-reservoir-basin anti-seepage reservoir suitable for high-altitude arid region
By adding cement-based penetrating crystalline waterproofing agent and geomembrane anti-seepage structure into the concrete panel of the reservoir, and combining it with photovoltaic panels to block light and generate electricity, the problem of poor anti-seepage effect of reservoirs in the northwest region has been solved, the economy and anti-seepage effect in high-altitude arid areas have been achieved, and water evaporation loss has been reduced.
Patent Information
- Application Number
- CN202422542060.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In the existing technology, the anti-seepage scheme for the entire reservoir basin of pumped storage power stations in the northwest region has poor economy and poor anti-seepage effect. In addition, the high-altitude arid areas have sufficient sunshine and high temperatures, which lead to large water evaporation and serious energy storage losses.
A cement-based penetrating crystallizing waterproofing agent is added to the concrete panel, combined with a geomembrane anti-seepage structure and photovoltaic panels. The surface of the concrete panel is provided with a thermal insulation coating. The photovoltaic panels block light to reduce water evaporation, and a flexible photovoltaic bracket is installed above the reservoir to generate electricity.
It improves the impermeability and economy of the reservoir, reduces water evaporation, fully utilizes sunlight resources to generate electricity, and reduces energy storage losses.
Smart Images
Figure CN223423182U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of full reservoir basin seepage prevention reservoir suitable for high altitude arid area, belong to pumped storage power station facility technical field. BACKGROUND
[0002] Pumped storage power station uses electric energy to pump water to upper reservoir during electric power load low, and generates electricity during electric power load peak. It is called pumped storage power station. It can convert redundant electric energy during electric power load low into high value electric energy during electric power load peak, and is suitable for frequency modulation, phase modulation, stabilizes the frequency and voltage of power system, and is suitable for emergency backup, and can improve the efficiency of thermal power station and nuclear power station in system.
[0003] Pumped storage power station in northwest region is located in high altitude region, and usually has the characteristics of large environmental temperature difference and water resource deficiency. Therefore, the reservoir basin of reservoir has higher seepage prevention requirement, and full reservoir basin seepage prevention scheme is usually used. However, in prior art, the full reservoir basin seepage prevention scheme of pumped storage power station reservoir in northwest region has the shortcomings of poor economy and poor anti-seepage effect, and high altitude arid region has sufficient sunshine, high temperature and large water evaporation, resulting in large energy storage loss. Therefore, we propose a kind of full reservoir basin seepage prevention reservoir suitable for high altitude arid area. CONTENT OF UTILITY MODEL
[0004] The utility model aims at providing a kind of full reservoir basin seepage prevention reservoir suitable for high altitude arid area, and considering economy and anti-seepage effect, coupling photovoltaic power generation, both reducing water resource evaporation in reservoir and fully utilizing light resource to generate electricity.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a kind of full reservoir basin seepage prevention reservoir suitable for high altitude arid area, including dam body and reservoir bottom, the dam body is arranged around the reservoir bottom to form reservoir, for water storage, the water-facing surface of the dam body is provided with concrete panel, the surface of the reservoir bottom is provided with geomembrane seepage prevention structure, photovoltaic panel is installed between the top of the dam body and can be covered on the reservoir, photovoltaic panel is shielded for water resource in reservoir, both reducing water resource evaporation in reservoir and fully utilizing light resource to generate electricity.
[0006] The foregoing full reservoir basin seepage prevention reservoir suitable for high altitude arid area, the concrete panel is composed of anti-freezing concrete mixed with cement-based permeable crystalline waterproofing agent, the cement-based permeable crystalline material is mixed in the concrete panel, the compactness of concrete can be improved during initial pouring, so as to increase the strength of concrete, and the cracked crack can be repaired again after cracking, the anti-seepage of the concrete panel is improved, thin thermal insulation coating is arranged on the surface of the concrete panel, the temperature amplitude of the concrete panel around the reservoir is reduced, and the cracking caused by large temperature change of external environment around the reservoir is reduced.
[0007] The aforementioned full-basin anti-seepage reservoir suitable for high-altitude arid areas, the geomembrane anti-seepage structure includes a lower support layer, a geomembrane anti-seepage layer, and an upper protective layer arranged in sequence from bottom to top.
[0008] The aforementioned full-basin anti-seepage reservoir suitable for high-altitude arid areas, the lower support layer is provided with a first geotextile, a three-dimensional composite drainage net, a sand cushion layer, a gravel cushion layer and a transition layer in sequence from top to bottom.
[0009] The aforementioned full-basin anti-seepage reservoir suitable for high-altitude arid areas, wherein the geomembrane anti-seepage layer is a high-density polyethylene film.
[0010] The aforementioned full-basin anti-seepage reservoir suitable for high-altitude arid areas, wherein the upper protective layer is provided with a second geotextile and a crushed stone sandbag surface protection layer in sequence from bottom to top.
[0011] The aforementioned full-basin anti-seepage reservoir suitable for high-altitude arid areas is provided with a flexible photovoltaic bracket spanning both sides of the dam body on the dam body, and photovoltaic panels are installed on the flexible photovoltaic bracket. Multiple photovoltaic panels are shielded above the reservoir. High-altitude arid areas have sufficient sunshine, high temperature, and large water evaporation. Photovoltaic panels block light, which not only reduces the evaporation of water resources in the reservoir, but also can fully utilize light resources to generate electricity.
[0012] The aforementioned full-basin anti-seepage reservoir suitable for high-altitude arid areas, the flexible photovoltaic support includes columns, multiple columns are vertically erected on the top of the dam body and evenly distributed, a cross beam is provided at the top between two adjacent columns, a cable group is connected between the opposite cross beams on both sides of the reservoir bottom, the photovoltaic panel is fixed on each of the cable groups to ensure the wind resistance of the large-span cable system and improve the overall stability.
[0013] The aforementioned full-basin anti-seepage reservoir suitable for high-altitude arid areas, the cable group includes two main locks and a stabilizing cable arranged in a triangle, the two main locks are at the same height and placed above the stabilizing cable, a rigid tripod is arranged between the main locks and the stabilizing cable, and a plurality of the rigid tripods are arranged at intervals along the corresponding main locks and stabilizing cables, the photovoltaic panel is fixed on the upper side of the two main locks, and a windproof cable is arranged between the rigid tripods corresponding to the positions between adjacent cable groups, and the windproof cable is fixed to the bottom end of the rigid tripod.
[0014] The aforementioned full-basin anti-seepage reservoir is suitable for high-altitude arid areas. The backwater side of the columns and beams is respectively provided with one end of an inclined cable, and the other end of the inclined cable is fixed to the top of the backwater side of the dam body to balance the situation where one side of the column and beam cable is subjected to greater force.
[0015] Compared with the existing technology, the solution of the utility model takes into account both economy and improved anti-seepage effect; the thermal insulation coating arranged on the surface of the concrete panel reduces the temperature fluctuation of the concrete panel around the reservoir, and reduces the cracking caused by excessive external temperature changes around the reservoir; the cement-based penetrating crystalline material is added to the concrete panel, which can increase the density of the concrete during the initial pouring, thereby increasing the concrete strength. After the cracks are cracked, the cracks can be repaired for a second time, thereby improving the anti-seepage property of the concrete panel; and, high-altitude arid areas have sufficient sunshine, high temperature, and large water evaporation. Building a support structure on the top of the reservoir basin and installing photovoltaic panels can not only reduce the evaporation of water resources in the reservoir and reduce energy storage losses, but also make full use of light resources to generate electricity. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;
[0017] Figure 2 It is a top view schematic diagram of the utility model;
[0018] Figure 3 This is a schematic diagram of the anti-seepage structure of the geomembrane of the utility model;
[0019] Figure 4 This is a schematic diagram of the flexible photovoltaic support structure of the utility model;
[0020] Figure 5 It is a structural schematic diagram of the cable group of the present utility model.
[0021] Figure numerals: 1-dam body, 2-reservoir bottom, 3-concrete panel, 4-geomembrane anti-seepage structure, 5-photovoltaic panel, 6-thin thermal insulation coating, 7-lower support layer, 8-geomembrane anti-seepage layer, 9-upper protective layer, 10-first geotextile, 11-three-dimensional composite drainage net, 12-sand cushion layer, 13-gravel cushion layer, 14-transition layer, 15-second geotextile, 16-gravel sandbag surface protection, 17-flexible photovoltaic bracket, 18-column, 19-beam, 20-cable group, 21-main lock, 22-stabilizing cable, 23-rigid tripod, 24-windproof cable, 25-inclined cable.
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. DETAILED DESCRIPTION
[0023] Example 1 of the present utility model: A full-basin anti-seepage reservoir suitable for high-altitude arid areas, including a dam body 1 and a reservoir bottom 2. The dam body 1 is arranged around the reservoir bottom 2 to form a reservoir for storing water. The water-facing surface of the dam body 1 is provided with a concrete panel 3, and the surface of the reservoir bottom 2 is provided with a geomembrane anti-seepage structure 4. Photovoltaic panels 5 that can cover the top of the reservoir are installed between the tops of the dam body 1. The photovoltaic panels 5 block light for the water resources in the reservoir, which not only reduces the evaporation of water resources in the reservoir, but also makes full use of light resources to generate electricity.
[0024] Example 2 of the present utility model: A full-basin anti-seepage reservoir suitable for high-altitude arid areas, comprising a dam body 1 and a reservoir bottom 2. The dam body 1 is arranged around the reservoir bottom 2 to form a reservoir for storing water. The water-facing surface of the dam body 1 is provided with a concrete panel 3, and the surface of the reservoir bottom 2 is provided with a geomembrane anti-seepage structure 4. Photovoltaic panels 5 that can cover the top of the reservoir are installed between the tops of the dam body 1. The photovoltaic panels 5 block light for the water resources in the reservoir, which not only reduces the evaporation of water resources in the reservoir, but also makes full use of light resources to generate electricity.
[0025] Among them, the concrete panel 3 is made of frost-resistant concrete mixed with cement-based penetrating crystallization waterproofing agent, the grade of which is determined according to the specific project. 3 150kg of cement-based penetrating crystallization waterproofing agent is added to the concrete, and cement-based penetrating crystallization material is added to the concrete panel 3. During the initial pouring, the density of the concrete can be increased, thereby increasing the strength of the concrete. After the cracks are cracked, the cracks can be repaired for a second time, thereby improving the impermeability of the concrete panel 3. The surface of the concrete panel 3 is provided with a thin thermal insulation coating 6, which reduces the temperature fluctuation of the concrete panel 3 around the reservoir and reduces the cracking caused by excessive external temperature changes around the reservoir. At the same time, the geomembrane anti-seepage structure 4 includes a lower support layer 7, a geomembrane anti-seepage layer 8, and an upper protective layer 9 arranged in sequence from bottom to top.
[0026] Specifically, the lower support layer 7 is provided with 500g / m 2 The first geotextile 10, 1300g / m 2 The three-dimensional composite drainage network 11, 5cm thick sand cushion layer 12, 40cm graded gravel cushion layer 13 and 160cm thick transition layer 14, the geomembrane anti-seepage layer 8 is a 1.5mm high-density polyethylene film, and the upper protective layer 9 is provided with 500g / m 2 The second geotextile 15 and the 0.3m thick gravel sandbag surface protection 16.
[0027] Example 3 of the present utility model: A full-basin anti-seepage reservoir suitable for high-altitude arid areas, comprising a dam body 1 and a reservoir bottom 2. The dam body 1 is arranged around the reservoir bottom 2 to form a reservoir for storing water. The water-facing surface of the dam body 1 is provided with a concrete panel 3, and the surface of the reservoir bottom 2 is provided with a geomembrane anti-seepage structure 4. Photovoltaic panels 5 that can cover the top of the reservoir are installed between the tops of the dam body 1. The photovoltaic panels 5 block light for the water resources in the reservoir, which not only reduces the evaporation of water resources in the reservoir, but also makes full use of light resources to generate electricity.
[0028] Considering the large distance between the reservoir and the shore, a flexible photovoltaic bracket 17 is provided on the dam body 1, which spans the dam body 1 on both sides. Photovoltaic panels 5 are installed on the flexible photovoltaic bracket 17. Multiple photovoltaic panels 5 are shielded above the reservoir. High-altitude arid areas have sufficient sunshine, high temperature, and large water evaporation. The photovoltaic panels 5 block the light, which not only reduces the evaporation of water resources in the reservoir, but also can make full use of light resources to generate electricity.
[0029] Example 4 of the present utility model: A full-basin anti-seepage reservoir suitable for high-altitude arid areas, including a dam body 1 and a reservoir bottom 2. The dam body 1 is arranged around the reservoir bottom 2 to form a reservoir for storing water. The water-facing surface of the dam body 1 is provided with a concrete panel 3, and the surface of the reservoir bottom 2 is provided with a geomembrane anti-seepage structure 4. Photovoltaic panels 5 that can cover the top of the reservoir are installed between the tops of the dam body 1, and the photovoltaic panels 5 block light for the water resources in the reservoir.
[0030] Considering the large distance between the reservoir and the bank, a flexible photovoltaic bracket 17 is provided on the dam body 1, which spans the dam body 1 on both sides. Photovoltaic panels 5 are installed on the flexible photovoltaic bracket 17, and multiple photovoltaic panels 5 are shielded above the reservoir. The flexible photovoltaic bracket 17 includes columns 18, and multiple columns 18 are vertically set up on the top of the dam body 1 and are evenly distributed. A crossbeam 19 is provided at the top between two adjacent columns 18, and a cable group 20 is connected between the opposite crossbeams on both sides of the reservoir bottom 2. The photovoltaic panel 5 is fixed on each of the cable groups 20 to ensure the wind resistance of the large-span cable system and improve the overall stability. The cable group 20 includes two main locks 21 and a stabilizing cable 22 arranged in a triangle. The two The main locks 21 are at the same height as the main locks 21 and are placed above the stabilizing cables 22. A rigid tripod 23 is provided between the main locks 21 and the stabilizing cables 22. Multiple rigid tripods 23 are spaced apart along the corresponding main locks 21 and stabilizing cables 22. The photovoltaic panels 5 are fixed to the upper sides of the two main locks 21. A windbreak cable 24 is provided between the rigid tripods 23 corresponding to the positions between the adjacent cable groups 20, and the windbreak cable 24 is fixed to the bottom end of the rigid tripod 23. One end of a diagonal cable 25 is provided on the backwater side of each column 18 and beam 19. The other end of the diagonal cable 25 is fixed to the top of the backwater side of the dam body 1 to balance the greater force on the cable side of the column 18 and beam 19. High-altitude arid areas have abundant sunshine, high temperatures, and high water evaporation. The photovoltaic panels 5 block sunlight, which not only reduces water evaporation in the reservoir but also fully utilizes sunlight resources for power generation.
[0031] The working principle of an embodiment of the present invention is as follows: the water-facing surface of the dam body 1 of the present invention is provided with a concrete panel 3, and the concrete panel 3 is mixed with cement-based permeable crystalline material. During the initial pouring, the density of the concrete can be improved, thereby increasing the strength of the concrete. After the cracks are cracked, the cracks can be repaired for a second time, thereby improving the impermeability of the concrete panel 3. The surface of the concrete panel 3 is provided with a thin thermal insulation coating 6, which reduces the temperature fluctuation of the concrete panel 3 around the reservoir and reduces the cracking caused by excessive changes in the external temperature around the reservoir. The geomembrane anti-seepage structure 4 includes a lower support layer 7, a geomembrane anti-seepage layer 8, and an upper protective layer 9 arranged in sequence from bottom to top, thereby increasing the impermeability of the reservoir bottom 2; high-altitude arid areas have sufficient sunshine, high temperature, and large water evaporation. Covering the photovoltaic panel 5 above the water surface not only blocks light to reduce the evaporation of water resources in the reservoir, reduce energy storage loss, improve energy storage efficiency, but also can make full use of light resources to generate electricity.
Claims
1. A full-basin anti-seepage reservoir suitable for high-altitude arid areas, characterized by: The invention comprises a dam body (1) and a reservoir bottom (2), wherein the dam body (1) is arranged around the reservoir bottom (2) to form a reservoir, a concrete panel (3) is provided on the water-facing surface of the dam body (1), a geomembrane anti-seepage structure (4) is provided on the surface of the reservoir bottom (2), and a photovoltaic panel (5) that can cover the top of the reservoir is installed between the tops of the dam body (1).
2. The full-basin anti-seepage reservoir suitable for high-altitude arid areas according to claim 1, characterized in that: The concrete panel (3) is formed by adding a cement-based penetrating crystallization waterproofing agent into antifreeze concrete, and a thin thermal insulation coating (6) is provided on the surface of the concrete panel (3).
3. The full-basin anti-seepage reservoir suitable for high-altitude arid areas according to claim 1, characterized in that: The geomembrane anti-seepage structure (4) comprises a lower support layer (7), a geomembrane anti-seepage layer (8), and an upper protective layer (9) which are arranged in sequence from bottom to top.
4. The full-basin anti-seepage reservoir suitable for high-altitude arid areas according to claim 3, characterized in that: The lower support layer (7) is provided with a first geotextile (10), a three-dimensional composite drainage net (11), a sand cushion layer (12), a crushed stone cushion layer (13) and a transition layer (14) in sequence from top to bottom.
5. The full-basin anti-seepage reservoir suitable for high-altitude arid areas according to claim 3, characterized in that: The geomembrane anti-seepage layer (8) is a high-density polyethylene film.
6. The full-basin anti-seepage reservoir suitable for high-altitude arid areas according to claim 3, characterized in that: The upper protective layer (9) is provided with a second geotextile (15) and a crushed stone sandbag surface protection (16) in sequence from bottom to top.
7. The full-basin anti-seepage reservoir suitable for high-altitude arid areas according to claim 1, characterized in that: The dam body (1) is provided with a flexible photovoltaic bracket (17) spanning the dam body (1) on both sides, and a photovoltaic panel (5) is installed on the flexible photovoltaic bracket (17), and a plurality of the photovoltaic panels (5) are shielded above the reservoir.
8. The full-basin anti-seepage reservoir suitable for high-altitude arid areas according to claim 7, characterized in that: The flexible photovoltaic support (17) includes columns (18), a plurality of the columns (18) are vertically erected on the top of the dam body (1) and evenly distributed, a crossbeam (19) is provided at the top between two adjacent columns (18), a cable group (20) is connected between the crossbeams on both sides of the reservoir bottom (2) that are opposite to each other, and the photovoltaic panel (5) is fixed on each of the cable groups (20).
9. The full-basin anti-seepage reservoir suitable for high-altitude arid areas according to claim 8, characterized in that: The cable group (20) includes two main locks (21) and a stabilizing cable (22) arranged in a triangle. The two main locks (21) are at the same height and are placed above the stabilizing cable (22). A rigid tripod (23) is arranged between the main locks (21) and the stabilizing cable (22). A plurality of rigid tripods (23) are arranged at intervals along the corresponding main locks (21) and the stabilizing cable (22). The photovoltaic panel (5) is fixed on the upper side of the two main locks (21). A windproof cable (24) is arranged between the rigid tripods (23) corresponding to the positions of the adjacent cable groups (20), and the windproof cable (24) is fixed to the bottom end of the rigid tripod (23).
10. The full-basin anti-seepage reservoir suitable for high-altitude arid areas according to claim 8, characterized in that: One end of a stay cable (25) is respectively provided on the backwater side of the upright column (18) and the cross beam (19), and the other end of the stay cable (25) is fixed to the top of the backwater side of the dam body (1).