A sewage filtering device for a hydropower plant

Abstract

The present invention relates to the technical field of sewage filtration, and in particular to a sewage filtration device for a hydropower plant, which mainly filters solid waste and floating oil floating on the surface of a sewage water body, and filters, separates and collects the floating oil. The device comprises a supporting component, including a bracket, a partition arranged at the bottom of the bracket, and a screen arranged on the outer wall of the partition. The supporting component positions and supports the entire device, wherein the bracket is fixedly connected above the water body and can be directly fixed to the shore of the water body through a connecting piece, and the partition and the screen are also fixedly connected to the bracket. The partition not only supports the structure for salvage, but also has a filtering effect. At the same time, the screen collects solid waste floating on the water surface, which is conducive to subsequent salvage. The partition filters the solid waste on the water body during the operation of the equipment, and after the equipment has been running for a period of time, the cleaning component can clean the outer wall of the partition.

Description

Technical Field

[0001] The invention relates to the technical field of sewage filtration, in particular to a sewage filtration device for a hydropower plant. Background Art

[0002] A hydropower plant converts the potential and kinetic energy of water into electrical energy. The basic process involves drawing water from a high point in a river or other reservoir, using the water's pressure or flow rate to drive a turbine, converting its gravitational potential and kinetic energy into mechanical energy. The turbine then drives a generator, converting the mechanical energy into electrical energy.

[0003] Hydropower plants often generate wastewater in the process of converting mechanical energy into electrical energy. This wastewater may contain oil substances such as leaked equipment lubricants and hydraulic oils, as well as solid waste generated by construction and maintenance. The wastewater needs to be filtered before it can be discharged. However, when treating wastewater with existing technology, solid waste, oil pollution and water resources need to be filtered one by one, and even multiple sedimentation tanks are needed for sedimentation and filtration. If there is a device that can treat surface waste and separate solid waste from floating oil at the same time, the processing time can be reduced. Summary of the Invention

[0004] The present invention aims to provide a sewage filtering device for a hydropower plant, which aims to solve the problem of complicated process in the prior art when separating solid waste and floating oil from sewage in a hydropower plant.

[0005] The above technical problems are solved by the following technical solutions: The present invention proposes the following technical solutions: A sewage filtering device for a hydropower plant, comprising a supporting member, including a bracket, a partition provided at the bottom of the bracket, and a screen provided on the outer wall of the partition; and

[0006] A salvage component includes a telescopic rod, a connecting frame arranged at the bottom of the telescopic rod, and a salvage bucket arranged at the bottom of the connecting frame; and

[0007] Clean components;

[0008] The bottom of the salvage bucket is provided with a flap, and the bottom of the salvage bucket is provided with a limited position edge at the upper edge of the flap.

[0009] As a preferred embodiment of the hydropower plant sewage filtration device of the present invention: the barrier is annular, the barrier is wrapped around the outer wall of the partition, the top height of the barrier is slightly lower than the top height of the partition, the top of the barrier forms an opening in the area close to the partition, and the top of the barrier is processed into a curved strip.

[0010] As a preferred embodiment of the sewage filtering device for a hydropower plant of the present invention, the partition cylinder is hollow, and filter holes are formed on the outer wall of the partition cylinder.

[0011] As a preferred embodiment of the hydropower plant sewage filtering device of the present invention: the salvage bucket includes a salvage bucket body and a compartment arranged on the side of the salvage bucket body, and the flap is arranged at the bottom of the salvage bucket body.

[0012] As a preferred embodiment of the hydropower plant sewage filtering device of the present invention: the flap is rotatably connected to the salvage bucket, its rotating shaft leads to the compartment, a rotating wheel is provided at the end of the rotating shaft of the flap, and a limit plate is provided on the side of the rotating wheel.

[0013] As a preferred embodiment of the hydropower plant sewage filtering device of the present invention: a slot is provided on the top of the rotor, and an electric push rod is provided on the inner wall of the compartment.

[0014] As a preferred embodiment of the sewage filtering device for a hydropower plant of the present invention: the electric push rod is arranged above the rotating wheel, and the bottom of the electric push rod cooperates with the clamping groove.

[0015] As a preferred embodiment of the hydropower plant sewage filtering device of the present invention: the cleaning component includes an annular frame arranged on the side of the bracket, and a slider is provided on the top of the annular frame.

[0016] As a preferred embodiment of the sewage filtering device for a hydropower plant of the present invention: a cleaning plate is provided at the bottom of the sliding block, and cleaning teeth are provided on a side of the cleaning plate close to the separator.

[0017] As a preferred embodiment of the hydropower plant sewage filtering device of the present invention: a sliding rod is provided on the side of the slider close to the telescopic rod, a spiral groove is provided on the outer wall of the movable rod at the bottom of the telescopic rod, and the end of the sliding rod away from the slider cooperates with the spiral groove.

[0018] The beneficial effects of the present invention are: by arranging the partition tube and the salvage bucket, the floating oil on the sewage surface can be collected, and solid waste can be filtered and collected during the collection process. In addition, the cleaning component is provided to clean the filter structure and reduce the formation of blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention, and are not intended to limit the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 Schematic diagram of the structure of the support member in the present invention.

[0022] Figure 3It is a structural schematic diagram of the salvage bucket in the present invention.

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of point A in the middle.

[0024] Figure 5 It is a structural schematic diagram of the cleaning component in the present invention.

[0025] Figure 6 for Figure 5 Enlarged schematic diagram of point B in the middle.

[0026] Figure 7 It is a structural schematic diagram of the cleaning plate in the present invention.

[0027] In the figure: 1. Support member; 11. Bracket; 12. Spacer; 13. Filter hole; 14. Blocking net; 2. Salvage member; 3. Cleaning member; 21. Telescopic rod; 22. Connecting frame; 23. Salvage bucket; 233. Flip plate; 234. Limiting edge; 141. Opening; 142. Curved bar; 231. Salvage bucket body; 232. Compartment; 235. Rotating wheel; 236. Limiting plate; 237. Slot; 238. Electric push rod; 31. Ring frame; 32. Slider; 33. Sliding rod; 34. Cleaning plate; 35. Cleaning teeth; 211. Spiral groove. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0029] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0030] Reference Figures 1 to 6, this embodiment provides a sewage filtration device for a hydropower plant, which mainly filters solid wastes such as construction waste, production waste and floating oil floating on the surface of the sewage water body, and filters, separates and collects the floating oil. It includes a supporting member 1, including a bracket 11, a partition 12 arranged at the bottom of the bracket 11, and a screen 14 arranged on the outer wall of the partition 12. The supporting member 1 positions and supports the entire device, wherein the bracket 11 will be fixedly connected above the water body and can be directly fixed to the shore of the water body through a connecting piece, and the partition 12 and the screen 14 are also fixedly connected to the bracket 11. The partition 12 not only supports the structure for salvage, but also has a filtering effect. At the same time, the screen 14 will collect solid waste floating on the water surface, which is conducive to subsequent salvage; and,

[0031] The salvage component 2 includes a telescopic rod 21, which is preferably an electric or hydraulic rod, a connecting frame 22 provided at the bottom of the telescopic rod 21, and a salvage bucket 23 provided at the bottom of the connecting frame 22. Preferably, the bottom of the connecting frame 22 is fixedly connected to the inner wall of the salvage bucket 23, and the outer wall of the salvage bucket 23 is in contact with the partition 12. The outer wall of the salvage bucket 23 is limited by the partition 12. The salvage bucket 23 can slide up and down with the extension and contraction of the telescopic rod 21, and collects floating oil on the water body during the movement. The partition 12 wraps it to stabilize its up and down movement; and

[0032] The cleaning component 3 and the partition 12 filter the solid waste on the water body during the operation of the equipment to prevent a large amount of solid waste from entering the salvage bucket 23 along with the floating oil. After the equipment has been running for a period of time, the filtering structure on the partition 12 may be blocked. The cleaning component 3 can clean the outer wall of the partition 12 to prevent or delay the blockage of the partition 12 and ensure its filtering effect.

[0033] Among them, the bottom of the salvage bucket 23 is provided with a flap 233, and the upper edge of the flap 233 at the bottom of the salvage bucket 23 is provided with a limiting edge 234, so that the flap 233 can flip over at the bottom of the salvage bucket 23. Since the limiting edge 234 is provided on the upper edge of the flap 233, it can only flip downward and cannot flip upward. The salvage bucket 23 moves up and down in the water. When the salvage bucket 23 moves upward, the flap 233 is affected by its own gravity and the resistance of the water body when moving upward, and it will naturally flip downward, so that the bottom of the salvage bucket 23 is connected with the water body. When the salvage bucket 23 moves downward, the flap 233 moves downward and the water body resistance is upward, so the flap 233 is subjected to an upward force, but because the limiting edge 234 on the upper edge prevents it from flipping upward, the flap 233 is tightly attached to the bottom of the salvage bucket 23, and the bottom of the salvage bucket 23 is not connected with the water body.

[0034] Usage process: the bracket 11 is fixedly connected above the water body through a connecting piece, the top of the partition 12 is slightly higher than the water surface, the top of the blocking net 14 is slightly lower than the top of the partition 12, and the top of the blocking net 14 is slightly lower than the water surface. As the telescopic rod 21 extends and retracts, the salvage bucket 23 moves up and down. When the salvage bucket 23 moves to the highest point, its top will be higher than the water surface, and when the salvage bucket 23 moves to the lowest point, its top will be slightly lower than the water surface. At the beginning, the interior of the salvage bucket 23 is hollow or not full of water. When the salvage bucket 23 moves downward to the lowest point, the water around the salvage bucket 23 will move toward the inside of the bucket, so a water flow moving toward the inside of the salvage bucket 23 will be generated around the equipment, and the floating oil floating in the water body will enter the inside of the salvage bucket 23 with the water flow. At the same time, the floating oil will also float on the water in the salvage bucket 23. After the salvage bucket 23 slides down to the lowest point, it begins to move upward. At this time, the flap 233 will move to The bottom of the barrel is connected to the water body. After the top of the salvage barrel 23 moves out of the water, the water at the bottom of the barrel will flow out from the bottom of the barrel, and the surface of the oil-water mixture in the salvage barrel 23 will be level with the water surface. The salvage barrel 23 rises further, leaving a part of the barrel in the water and stops rising. At this time, most of the floating oil on the upper layer of the barrel will remain in the barrel, and most of the water at the bottom of the barrel will flow out from the bottom of the salvage barrel 23. The salvage barrel 23 continues to sink, and the flap 233 closes, repeating the above process. However, during the repeated rising and falling process, the rising distance is slowly adjusted. After a cycle, floating oil on the water surface will accumulate in the barrel. As the salvage barrel 23 accumulates more floating oil, the rising distance becomes smaller. Over time, most of the barrel is floating oil and a small part is water. At this time, the floating oil accumulated in the barrel can be extracted, or the flap 233 can be locked and the salvage barrel 23 can be directly lifted to complete the collection and salvage of the floating oil.

[0035] Example 2, reference Figures 1 to 6 , which is the second embodiment. Different from the previous embodiment, the blocking net 14 is annular and wrapped around the outer wall of the partition 12. The top height of the blocking net 14 is slightly lower than the top height of the partition 12, the height of the partition 12 is slightly higher than the water surface, and the height of the blocking net 14 is slightly lower than the water surface. In the process of the salvage bucket 23 descending, a water flow is formed on the periphery of the barrel body and flows into the barrel. The water flow will drive the solid waste floating on the water surface to flow toward the salvage bucket 23. An opening 141 is formed in the area near the partition 12 at the top of the blocking net 14, and the top of the blocking net 14 is processed into a curved bar 142. The flowing solid waste enters the blocking net 14 from the opening 141 with the water flow. When the salvage bucket 23 rises, some solid waste will escape from the opening 141, and some solid waste will be retained in the upper part of the blocking net 14 by the curved bar 142.

[0036] Furthermore, the partition 12 is a hollow structure, and a filter hole 13 is provided on the outer wall of the partition 12 which is higher than the bottom of the barrier 14. When the water flow drives the solid waste floating on the surface of the water body toward the salvage bucket 23, the solid waste will be intercepted by the partition 12 on the outer wall of the partition 12 and will not enter the salvage bucket 23 along with the floating oil, thereby filtering out the solid waste.

[0037] Usage process: During the descent of the salvage bucket 23, solid waste and floating oil flow toward the salvage bucket 23 along with the water flow. The solid waste will enter the screen 14 through the opening 141 and be intercepted by the partition 12, while the floating oil will enter the inside of the salvage bucket 23 through the filter hole 13. During the ascent of the salvage bucket 23, some solid waste will float away from the screen 14, and some solid waste will be retained in the screen 14 by the curved structure of the screen 14. Over time, a large amount of solid waste will be collected in the screen 14, which is conducive to the subsequent salvage of the solid waste. The solid waste can be salvaged at a fixed point at the screen 14 to clean the water surface.

[0038] Example 3, reference Figures 1 to 6 , which is the third embodiment. Different from the previous embodiment, the salvage barrel 23 includes a salvage barrel body 231 and a compartment 232 arranged on the side of the salvage barrel body 231, and a flap 233 is arranged at the bottom of the salvage barrel body 231. The salvage barrel body 231 is responsible for temporarily storing oil and water during the entire salvage process, and the compartment 232 is responsible for controlling the movement of the flap 233.

[0039] Furthermore, the flap 233 is rotatably connected to the salvage bucket 23, and its shaft leads to the compartment 232. A rotating wheel 235 is provided at the end of the shaft of the flap 233, and the rotating wheel 235 is fixedly connected to the shaft. A limit plate 236 is provided on the side of the rotating wheel 235. The limit plate 236 controls the maximum angle that the flap 233 can flip, preventing the flap 233 from being unable to rotate during the rising process of the salvage bucket 23 after flipping more than 90 degrees, resulting in the bottom of the salvage bucket 23 cannot be closed. A slot 237 is provided on the top of the rotating wheel 235. When the flap 233 is in the closed state, the slot 237 is positioned At the top of the rotating wheel 235, an electric push rod 238 is provided on the inner wall of the compartment 232. Preferably, the compartment 232 should be in a sealed state to prevent water from entering the compartment 232 and destroying the structure therein during operation. The electric push rod 238 is provided above the rotating wheel 235, and the bottom of the electric push rod 238 cooperates with the card slot 237. When the flap 233 is in a closed state, the bottom of the electric push rod 238 can extend into the card slot 237 to prevent the rotating wheel 235 from rotating, thereby preventing the flap 233 from flipping, so that the flap 233 is locked, and the bottom of the salvage barrel 231 is in a locked state.

[0040] Usage process: After the salvage barrel 231 repeatedly rises and falls, and most of the barrel is filled with floating oil and a small part is filled with water, the electric push rod 238 locks the flap 233, and the bottom of the salvage barrel 231 is locked. At this time, the telescopic rod 21 can lift the entire salvage barrel 23 out of the water, stop moving, and wait for the staff to collect the floating oil from the barrel. The collection of the floating oil on the water surface is completed, and the solid waste in it is filtered out.

[0041] Example 4, with reference to Figures 1 to 7 , which is the fourth embodiment, and is different from the previous embodiment in that, Figure 6 As shown, the cleaning component 3 includes an annular frame 31 arranged on the side of the bracket 11, the annular frame 31 is fixedly connected to the bracket 11, a slider 32 is provided on the top of the annular frame 31, the bottom of the slider 32 is engaged with the top of the bracket 11, the slider 32 can slide on the bracket 11, the slider 32 can rotate in a circle around the top of the partition 12, a cleaning plate 34 is provided at the bottom of the slider 32, and a cleaning tooth 35 is provided on the side of the cleaning plate 34 close to the partition 12.

[0042] Furthermore, a slide bar 33 is provided on the side of the slider 32 close to the telescopic rod 21, and a spiral groove 211 is provided on the outer wall of the movable rod at the bottom of the telescopic rod 21. The spiral groove 211 is provided on the upper part of the movable rod, and the spiral groove 211 is not provided on the lower part. The end of the slide bar 33 away from the slider 32 cooperates with the spiral groove 211. When the telescopic rod 21 is extended to a sufficient length, that is, the salvage bucket 23 moves to a sufficient water depth, the spiral groove 211 will contact the slide bar 33. At this time, the telescopic rod 21 continues to extend and will drive the slide bar 33 to rotate through the spiral groove 211, thereby driving the slider 32 to rotate. The cleaning plate 34 rotates together with the slider 32, and the cleaning teeth 35 in contact with the partition cylinder 12 will clean the filter holes 13 on the surface of the partition cylinder 12, reducing the possibility of the filter holes 13 being blocked.

[0043] Usage process: After the device has been running for a period of time, the filter holes 13 on the partition 12 can be cleaned to prevent clogging. Specifically, the telescopic rod 21 is further extended, and the salvage bucket 23 sinks deeper into the water body. The compartment 232 locks the flap 233, so that the salvage bucket 23 is closed. At this time, the telescopic rod 21 retracts to drive the salvage bucket 23 to rise. Figure 7 As shown, the rising of the salvage bucket 23 will form an upward water flow inside the partition 12 (as shown in FIG. Figure 7 As shown by the arrow, this water flow will backwash the solids remaining on the outer wall of the partition 12. At the same time, the cleaning plate 34 rotates on the outer wall of the partition 12 to clean the filter holes 13. The water flow and the cleaning plate 34 cooperate to clean, and the cleaning effect is better.

[0044] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A sewage filtration device for a hydropower plant, characterized by: include, A supporting member (1) comprises a bracket (11), a partition (12) arranged at the bottom of the bracket (11), and a screen (14) arranged on the outer wall of the partition (12); and A salvage component (2) comprises a telescopic rod (21), a connecting frame (22) arranged at the bottom of the telescopic rod (21), and a salvage bucket (23) arranged at the bottom of the connecting frame (22); and, Cleaning components (3); The bottom of the salvage bucket (23) is provided with a flap (233), and a limited edge (234) is provided on the upper edge of the flap (233) at the bottom of the salvage bucket (23). The bottom of the connecting frame (22) is fixedly connected to the inner wall of the salvage bucket (23). The outer wall of the salvage bucket (23) is in contact with the partition (12), and its outer wall is limited by the partition (12). The salvage bucket (23) can slide up and down as the telescopic rod (21) is extended and retracted, and the floating oil on the water body is collected during the movement. The partition (12) wraps it to stabilize its up and down movement. The salvage barrel (23) includes a salvage barrel body (231) and a compartment (232) arranged on a side of the salvage barrel body (231), and the flap (233) is arranged at the bottom of the salvage barrel body (231); The flap (233) is rotatably connected to the salvage bucket (23), the rotating shaft of the flap (233) leads to the compartment (232), a rotating wheel (235) is provided at the end of the rotating shaft of the flap (233), and a limiting plate (236) is provided on the side of the rotating wheel (235); A slot (237) is provided on the top of the rotating wheel (235), and an electric push rod (238) is provided on the inner wall of the compartment (232); The electric push rod (238) is arranged above the rotating wheel (235), and the bottom of the electric push rod (238) is matched with the clamping slot (237).

2. The hydropower plant sewage filtering device according to claim 1, characterized in that: The blocking net (14) is annular and wrapped around the outer wall of the partition (12). The top height of the blocking net (14) is slightly lower than the top height of the partition (12). An opening (141) is formed in the area of ​​the top of the blocking net (14) close to the partition (12), and the top of the blocking net (14) is processed into a curved strip (142).

3. The hydropower plant sewage filtering device according to claim 2, characterized in that: The partition cylinder (12) is hollow, and a filter hole (13) is provided on the outer wall of the partition cylinder (12).

4. The hydropower plant sewage filtering device according to claim 3, characterized in that: The cleaning component (3) comprises an annular frame (31) arranged on the side of the bracket (11), and a slider (32) is provided on the top of the annular frame (31).

5. The hydropower plant sewage filtering device according to claim 4, characterized in that: A cleaning plate (34) is provided at the bottom of the slider (32), and a cleaning tooth (35) is provided on a side of the cleaning plate (34) close to the spacer (12).

6. The hydropower plant sewage filtering device according to claim 5, characterized in that: A sliding rod (33) is provided on one side of the slider (32) close to the telescopic rod (21), a spiral groove (211) is provided on the outer wall of the movable rod at the bottom of the telescopic rod (21), and an end of the sliding rod (33) away from the slider (32) is engaged with the spiral groove (211).

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