Anti-adhesion seawater pumped storage power station water inlet and outlet structure
By using vortex-proof beam sections and trash rack structures in seawater pumped storage power stations, combined with auxiliary cleaning devices, the problems of wear and blockage caused by marine organism attachment are solved, efficient protection and convenient maintenance are achieved, and equipment maintenance costs are reduced.
Patent Information
- Application Number
- CN202422562698.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Marine organisms in the ocean tend to gather and attach to the water transfer structures and equipment of pumped-storage power stations, causing wear, blockage and ecological pollution, which are difficult to effectively prevent and remove with existing technologies.
It adopts a vortex-proof beam section and a trash rack structure, combined with an auxiliary cleaning device, and uses bidirectional water flow to drive the rotating shaft and cleaning brush without the need for additional power equipment. It intercepts hard-shelled shellfish and entangles soft fouling organisms, reducing the risk of attachment and blockage, and facilitates the disassembly and replacement of the equipment through the maintenance room.
It achieves effective interception and removal of hard-shelled shellfish and soft fouling organisms, reduces equipment maintenance costs, maintains filtration effects, facilitates maintenance and replacement, and reduces maintenance costs of power station equipment and water pipelines.
Smart Images
Figure CN223433788U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-adhesion seawater pumped storage power station water inlet and outlet structure, belonging to the technical field of water conservancy and hydropower engineering. Background Art
[0002] Seawater pumped storage technology uses the ocean as an upper or lower reservoir, with small water level fluctuations, reducing reservoir construction and investment costs, and solving the problems of freshwater resource utilization and environmental damage in traditional pumped storage power stations. It has very broad development prospects for island countries and cities near the coast and lacking freshwater resources.
[0003] However, the ocean's diverse and abundant biomass easily aggregates and attaches, causing wear and tear on water transmission structures and equipment. In severe cases, this can lead to pipeline blockages and ecological pollution. Marine fouling organisms are primarily categorized as soft fouling organisms and hard fouling organisms, such as sponges, barnacles, and other hard-shelled shellfish. As the first line of defense against direct seawater contact, the lower reservoir inlet's filtration and anti-attachment capabilities directly impact the safety of the pumped-storage power station. Utility Model Content
[0004] The purpose of the utility model is to provide an anti-attachment seawater pumped storage power station water inlet and outlet structure, which achieves good anti-marine biological effect, is easy to repair and replace, and reduces the maintenance cost of power station equipment and water pipelines.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: an anti-adhesion seawater pumped storage power station water inlet and outlet structure, including an upper reservoir, a lower reservoir and a powerhouse, the upper reservoir and the powerhouse are connected by a water diversion pipe, the lower reservoir and the powerhouse are connected by a tailwater pipe, and the tailwater pipe is provided with a vortex-proof beam section near one end of the lower reservoir to reduce the vortex of the inlet water flow and the damage caused by the strong vortex to the project, two mutually parallel trash racks are provided in the anti-vortex beam section to intercept hard fouling organisms such as hard-shelled shellfish, and an auxiliary cleaning device is provided between the two trash racks, which can effectively entangle soft fouling organisms and wash the trash racks, thereby reducing the adhesion of pollutants and the blockage of the trash racks.
[0006] The aforementioned anti-adhesion seawater pumped storage power station water inlet and outlet structure, the auxiliary cleaning device includes structural embedded plates, the structural embedded plates are symmetrically arranged in pairs on both sides of the inner wall of the anti-vortex beam section, and multiple pairs of the structural embedded plates are arranged in a straight line along the inner wall of the anti-vortex beam section in the vertical direction, the structural embedded plates are provided with a slot on the side facing the inner cavity of the anti-vortex beam section, a rotating shaft is installed between two corresponding structural embedded plates through the slot, a cleaning brush is provided on the surface of the rotating shaft, the rotating shaft and the cleaning brush rotate under the action of bidirectional water flow, no additional power equipment is required, and soft fouling organisms can be effectively entangled under power generation and pumping conditions, and the trash rack can be washed.
[0007] The aforementioned anti-adhesion seawater pumped storage power station water inlet and outlet structure has a slot in the shape of a "U" with an open upper end, and the rotating shaft can be installed in the "U"-shaped slot from top to bottom, making disassembly and installation convenient.
[0008] The aforementioned anti-adhesion seawater pumped storage power station water inlet and outlet structure has a maintenance room arranged above the anti-vortex beam section, and a mutually connected maintenance port is opened between the maintenance room and the anti-vortex beam section. The maintenance port is located directly above the auxiliary cleaning device, and the two trash racks are placed on both sides of the maintenance port. A crane that can lift the rotating shaft is provided on the top of the maintenance room, and the crane can lift the rotating shaft for disassembly, maintenance, installation and replacement, so as to facilitate the maintenance of the auxiliary cleaning device.
[0009] In the aforementioned anti-adhesion seawater pumped storage power station water inlet and outlet structure, lifting ears are provided on both sides of the rotating shaft to facilitate lifting by a crane.
[0010] The aforementioned anti-adhesion seawater pumped storage power station water inlet and outlet structure has a movable cover on the top of the inspection port. The movable cover is closed when the seawater pumped storage power station is operating normally and is opened only during maintenance.
[0011] The aforementioned anti-adhesion seawater pumped storage power station water inlet and outlet structure is equipped with a hydraulic gate in the tailwater pipe tunnel section. The hydraulic gate serves as an emergency gate. After closing, it enters a static water state, at which time the water level of the lower reservoir is lowered to below the bottom elevation of the maintenance workshop, making it convenient for the lifting, cleaning, maintenance and replacement of the trash rack and auxiliary cleaning equipment.
[0012] In the aforementioned anti-adhesion seawater pumped storage power station water inlet and outlet structure, the trash rack is bolted to the inner wall of the vortex beam section for easy maintenance and replacement, and the surface of the trash rack is painted with anti-fouling and anti-corrosion paint.
[0013] Compared with the existing technology, the trash rack of the utility model intercepts hard fouling organisms such as hard-shelled shellfish, and the auxiliary cleaning equipment can effectively entangle soft fouling organisms such as sponges and wash the trash rack, reducing the occurrence of pollutant adhesion and clogging of the trash rack. The auxiliary cleaning equipment adopts a simple roller brush structure, which can rotate under the action of two-way water flow under power generation and pumping conditions without the need for additional power equipment. Therefore, it can achieve good anti-marine organism effect with only a small initial construction cost; and the utility model is easy to repair and replace, maintains the filtering effect, and reduces the maintenance cost of power station equipment and water pipelines. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a plan view of the layout of the seawater pumped storage power station of the utility model;
[0015] Figure 2 This is a schematic diagram of the vertical structure of the vortex-proof beam section of the utility model;
[0016] Figure 3 This is a schematic structural diagram of the auxiliary cleaning device of the utility model;
[0017] Figure 4 This is a schematic diagram of the rotating shaft installation structure of the utility model.
[0018] Figure markings: 1-upper reservoir, 2-lower reservoir, 3-factory building, 4-water diversion pipe, 5-tailwater pipe, 6-vortex-proof beam section, 7-trash rack, 8-auxiliary cleaning device, 9-structure embedded plate, 10-slot, 11-rotating shaft, 12-cleaning brush, 13-maintenance room, 14-maintenance port, 15-crane, 16-lifting ear, 17-movable cover, 18-hydraulic opening and closing machine.
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. DETAILED DESCRIPTION
[0020] Embodiment 1 of the present utility model: An anti-adhesion seawater pumped storage power station water inlet and outlet structure, comprising an upper reservoir 1, a lower reservoir 2 and a powerhouse 3, the upper reservoir 1 and the powerhouse 3 are connected by a water diversion pipe 4, the lower reservoir 2 and the powerhouse 3 are connected by a tailwater pipe 5, and the tailwater pipe 5 is provided with a vortex-proof beam section 6 at one end near the lower reservoir 2 to reduce the vortex of the inlet water flow and the damage that a strong vortex will cause to the project, two mutually parallel trash racks 7 are provided in the vortex-proof beam section 6 to intercept hard fouling organisms such as hard-shelled shellfish, and an auxiliary cleaning device 8 is provided between the two trash racks 7 to effectively entangle soft fouling organisms and wash the trash rack 7 to reduce the adhesion of pollutants and the clogging of the trash rack 7.
[0021] Embodiment 2 of the present utility model: An anti-adhesion seawater pumped storage power station water inlet and outlet structure, comprising an upper reservoir 1, a lower reservoir 2 and a powerhouse 3, the upper reservoir 1 and the powerhouse 3 being connected by a water diversion pipe 4, the lower reservoir 2 and the powerhouse 3 being connected by a tailwater pipe 5, the tailwater pipe 5 being provided with a vortex-proof beam section 6 at one end near the lower reservoir 2, to reduce the vortex of the inlet water flow and the harm that a strong vortex will cause to the project, two mutually parallel trash racks 7 are provided in the vortex-proof beam section 6 to intercept hard fouling organisms such as hard-shelled shellfish, an auxiliary cleaning device 8 is provided between the two trash racks 7, which can effectively entangle soft fouling organisms and wash the trash rack 7, thereby reducing the adhesion of pollutants, clogging of the trash rack 7, etc.
[0022] Among them, the auxiliary cleaning device 8 includes a structural embedded plate 9, which is symmetrically arranged in pairs on both sides of the inner wall of the anti-vortex beam section 6, and multiple pairs of structural embedded plates 9 are arranged in a straight line along the inner wall of the anti-vortex beam section 6 in the vertical direction. The structural embedded plate 9 is provided with a card groove 10 on the side facing the inner cavity of the anti-vortex beam section 6. A rotating shaft 11 is installed between the two corresponding structural embedded plates 9 through the card groove 10. A cleaning brush 12 is provided on the surface of the rotating shaft 11. The rotating shaft 11 and the cleaning brush 12 rotate under the action of bidirectional water flow. No additional power equipment is required. It can effectively entangle soft fouling organisms under power generation and pumping conditions and wash the trash rack 7.
[0023] Embodiment 3 of the present utility model: An anti-adhesion seawater pumped storage power station water inlet and outlet structure, comprising an upper reservoir 1, a lower reservoir 2 and a powerhouse 3, the upper reservoir 1 and the powerhouse 3 are connected by a water diversion pipe 4, the lower reservoir 2 and the powerhouse 3 are connected by a tailwater pipe 5, and the tailwater pipe 5 is provided with a vortex-proof beam section 6 at one end near the lower reservoir 2 to reduce the vortex of the inlet water flow and the damage that a strong vortex will cause to the project, two mutually parallel trash racks 7 are provided in the vortex-proof beam section 6 to intercept hard fouling organisms such as hard-shelled shellfish, an auxiliary cleaning device 8 is provided between the two trash racks 7, which can effectively entangle soft fouling organisms and wash the trash rack 7 to reduce the adhesion of pollutants and the clogging of the trash rack 7, etc. The trash rack 7 is bolted to the inner wall of the vortex-proof beam section 6 for easy maintenance and replacement, and the surface of the trash rack 7 is painted with anti-fouling and anti-corrosion paint.
[0024] Among them, the auxiliary cleaning device 8 includes a structural embedded plate 9, which is symmetrically arranged in pairs on both sides of the inner wall of the anti-vortex beam section 6, and multiple pairs of structural embedded plates 9 are arranged in a straight line along the inner wall of the anti-vortex beam section 6 in the vertical direction. The structural embedded plate 9 is provided with a card groove 10 on the side facing the inner cavity of the anti-vortex beam section 6. A rotating shaft 11 is installed between the two corresponding structural embedded plates 9 through the card groove 10. A cleaning brush 12 is provided on the surface of the rotating shaft 11. The rotating shaft 11 and the cleaning brush 12 rotate under the action of bidirectional water flow. No additional power equipment is required. It can effectively entangle soft fouling organisms under power generation and pumping conditions and wash the trash rack 7.
[0025] The slot 10 is in the shape of a "U" with an open upper end. The rotating shaft 11 can be installed in the "U"-shaped slot 10 from top to bottom, which is convenient for disassembly and installation. A maintenance room 13 is provided above the anti-vortex beam section 6. An inspection port 14 that is interconnected is provided between the maintenance room 13 and the anti-vortex beam section 6. The inspection port 14 is directly above the auxiliary cleaning device 8, and two trash racks 7 are placed on both sides of the inspection port 14. A crane 15 that can lift the rotating shaft 11 is provided on the top of the maintenance room 13. The crane 15 can lift the rotating shaft 11 for disassembly, maintenance, installation and replacement, which is convenient for repairing the auxiliary cleaning device 8. Lifting ears 16 are provided on both sides of the rotating shaft 11 to facilitate lifting by the crane 15. A movable cover 17 is provided on the top of the inspection port 14. The movable cover 17 is closed when the seawater pumped storage power station is operating normally and is only opened during maintenance.
[0026] Embodiment 4 of the present utility model: An anti-adhesion seawater pumped storage power station water inlet and outlet structure, comprising an upper reservoir 1, a lower reservoir 2 and a powerhouse 3, the upper reservoir 1 and the powerhouse 3 being connected by a water diversion pipe 4, the lower reservoir 2 and the powerhouse 3 being connected by a tailwater pipe 5, a vortex-proof beam section 6 is provided at one end of the tailwater pipe 5 near the lower reservoir 2 to reduce the vortex of the inlet water flow and the damage that a strong vortex will cause to the project, two mutually parallel trash racks 7 are provided in the vortex-proof beam section 6 to intercept hard fouling organisms such as hard-shelled shellfish, an auxiliary cleaning device 8 is provided between the two trash racks 7, which can effectively entangle soft fouling organisms and wash the trash rack 7 to reduce the adhesion of pollutants and the clogging of the trash rack 7, etc. The trash rack 7 is bolted to the inner wall of the vortex-proof beam section 6 for easy maintenance and replacement, and the surface of the trash rack 7 is painted with anti-fouling and anti-corrosion paint.
[0027] Among them, the auxiliary cleaning device 8 includes a structural embedded plate 9, which is symmetrically arranged in pairs on both sides of the inner wall of the anti-vortex beam section 6, and multiple pairs of structural embedded plates 9 are arranged in a straight line along the inner wall of the anti-vortex beam section 6 in the vertical direction. The structural embedded plate 9 is provided with a card groove 10 on the side facing the inner cavity of the anti-vortex beam section 6. A rotating shaft 11 is installed between the two corresponding structural embedded plates 9 through the card groove 10. A cleaning brush 12 is provided on the surface of the rotating shaft 11. The rotating shaft 11 and the cleaning brush 12 rotate under the action of bidirectional water flow. No additional power equipment is required. It can effectively entangle soft fouling organisms under power generation and pumping conditions and wash the trash rack 7.
[0028] The slot 10 is in the shape of a "U" with an open upper end. The rotating shaft 11 can be installed in the "U"-shaped slot 10 from top to bottom, which is convenient for disassembly and installation. A maintenance room 13 is provided above the anti-vortex beam section 6. An inspection port 14 that is interconnected is provided between the maintenance room 13 and the anti-vortex beam section 6. The inspection port 14 is directly above the auxiliary cleaning device 8, and two trash racks 7 are placed on both sides of the inspection port 14. A crane 15 that can lift the rotating shaft 11 is provided on the top of the maintenance room 13. The crane 15 can lift the rotating shaft 11 for disassembly, maintenance, installation and replacement, which is convenient for repairing the auxiliary cleaning device 8. Lifting ears 16 are provided on both sides of the rotating shaft 11 to facilitate lifting by the crane 15. A movable cover 17 is provided on the top of the inspection port 14. The movable cover 17 is closed when the seawater pumped storage power station is operating normally and is only opened during maintenance.
[0029] Among them, the tunnel section of the tailwater pipeline 5 is equipped with a hydraulic hoist 18, which serves as an emergency gate. After closing, the hydraulic hoist 18 enters a static water state, at which time the water level of the lower reservoir 2 is lowered to below the bottom elevation of the maintenance workshop 13, making it convenient to lift, clean, repair and replace the trash rack 7 and auxiliary cleaning equipment 8.
[0030] The working principle of one embodiment of the utility model: when using, the anti-vortex beam section 6 reduces the vortex of inlet water flow, reduces the harm caused by strong vortex to the project, the trash rack 7 intercepts hard shell shellfish and other hard fouling organisms, the auxiliary cleaning device 8 can effectively wind the soft fouling organisms, and washes the trash rack 7, reduces the adhesion of pollutants, the blockage of trash rack 7 and other conditions; when maintaining during use, after the hydraulic hoist 18 is used as the accident gate and is closed, at this time, the water level of the lower reservoir 2 is lowered to the bottom elevation of the maintenance workshop 13, hoisting, cleaning, maintenance and replacement of the trash rack 7 and the auxiliary cleaning equipment 8 are facilitated.
Claims
1. An anti-adhesion seawater pumped storage power station water inlet and outlet structure, characterized in that: The invention comprises an upper reservoir (1), a lower reservoir (2) and a powerhouse (3); the upper reservoir (1) and the powerhouse (3) are connected via a water diversion pipe (4); the lower reservoir (2) and the powerhouse (3) are connected via a tailwater pipe (5); a vortex prevention beam section (6) is provided at one end of the tailwater pipe (5) close to the lower reservoir (2); two trash racks (7) arranged parallel to each other are provided in the vortex prevention beam section (6); and an auxiliary cleaning device (8) is provided between the two trash racks (7).
2. The anti-adhesion seawater pumped storage power station water inlet and outlet structure according to claim 1, characterized in that: The auxiliary cleaning device (8) comprises a structural embedded plate (9), wherein the structural embedded plates (9) are symmetrically arranged in pairs on both sides of the inner wall of the anti-vortex beam section (6), and multiple pairs of the structural embedded plates (9) are arranged in a straight line along the inner wall of the anti-vortex beam section (6) in a vertical direction, and a clamping groove (10) is provided on the side of the structural embedded plate (9) facing the inner cavity of the anti-vortex beam section (6), and a rotating shaft (11) is installed between two corresponding structural embedded plates (9) through the clamping groove (10), and a cleaning brush (12) is provided on the surface of the rotating shaft (11).
3. The anti-adhesion seawater pumped storage power station water inlet and outlet structure according to claim 2, characterized in that: The card slot (10) is in a "U" shape with an open upper end.
4. The anti-adhesion seawater pumped storage power station water inlet and outlet structure according to claim 3, characterized in that: A maintenance room (13) is provided above the vortex-proof beam section (6), and a mutually connected maintenance opening (14) is provided between the maintenance room (13) and the vortex-proof beam section (6). The maintenance opening (14) is located directly above the auxiliary cleaning device (8), and two trash racks (7) are placed on both sides of the maintenance opening (14). A hoist (15) capable of lifting the rotating shaft (11) is provided at the top of the maintenance room (13).
5. The anti-adhesion seawater pumped storage power station water inlet and outlet structure according to claim 4, characterized in that: Lifting ears (16) are provided on both sides of the rotating shaft (11).
6. The anti-adhesion seawater pumped storage power station water inlet and outlet structure according to claim 4, characterized in that: A movable cover plate (17) is provided on the top of the inspection opening (14).
7. The anti-adhesion seawater pumped storage power station water inlet and outlet structure according to claim 1, characterized in that: The tailwater pipeline (5) tunnel section is provided with a hydraulic hoist (18).
8. The anti-adhesion seawater pumped storage power station water inlet and outlet structure according to claim 1, characterized in that: The trash rack (7) is connected to the inner wall of the vortex beam section (6) by bolting, and the surface of the trash rack (7) is painted with anti-fouling and anti-corrosion paint.