Sewage filtering device for hydraulic power plant

Abstract

The invention relates to the technical field of sewage filtering, in particular to a hydraulic power plant sewage filtering device which is mainly used for filtering solid waste and floating oil floating on the surface of a sewage water body and filtering, separating and collecting the floating oil and comprises a supporting component, a support, a separation barrel arranged at the bottom of the support and a blocking net arranged on the outer wall of the separation barrel. The whole equipment is positioned and supported by the supporting component, the support can be fixedly connected to the upper portion of a water body and can be directly fixed to the bank side of the water body through the connecting piece, the separation barrel and the blocking net are also fixedly connected with the support, the separation barrel supports a structure used for fishing and has the filtering function, meanwhile, the blocking net can collect solid waste floating on the water surface, and the water body is protected. And the separation barrel can filter solid waste on the water body in the equipment operation process, and after the equipment operates for a period of time, the cleaning component can clean the outer wall of the separation barrel.

Description

Technical Field

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

[0002] A hydropower plant is a factory that converts the potential energy and kinetic energy of water into electrical energy. Its basic production process is as follows: Water is diverted from a high place in a river or other reservoirs, and the pressure or flow rate of the water is used to impel the water turbine to rotate, converting the gravitational potential energy and kinetic energy into mechanical energy. Then, the water turbine drives the generator to rotate, converting the mechanical energy into electrical energy.

[0003] During the process of converting mechanical energy into electrical energy in a hydropower plant, sewage is often generated. This sewage may contain oil substances resulting from leaks of equipment lubricating oil, hydraulic oil, etc., and may also contain solid waste generated during construction and maintenance. The sewage needs to be filtered before being discharged. However, when treating wastewater with existing technologies, it is necessary to filter solid waste, oil stains, and water resources one by one, and even multiple sedimentation tanks are required for sedimentation and filtration. If there is a device that can treat surface waste and separate solid waste and floating oil simultaneously, the treatment time can be reduced. Summary of the Invention

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

[0005] The above technical problem is solved by the following technical solutions: The present invention provides the following technical solutions: A sewage filtration device for a hydropower plant, which includes a support member, including a bracket, a partition cylinder provided at the bottom of the bracket, and a net provided on the outer wall of the partition cylinder; and, A fishing member, including a telescopic rod, a connecting frame provided at the bottom of the telescopic rod, and a fishing bucket provided at the bottom of the connecting frame; and, A cleaning member; A flap is provided at the bottom of the fishing bucket, and a limiting edge is provided at the upper edge of the flap at the bottom of the fishing bucket.

[0006] As a preferred embodiment of the sewage filtration device for a hydropower plant of the present invention: The net is annular, the net wraps around the outer wall of the partition cylinder, the top height of the net is slightly lower than the top height of the partition cylinder, an opening is formed in the area where the top of the net is close to the partition cylinder, and the top of the net is processed into a bent strip.

[0007] As a preferred embodiment of the sewage filtration device for a hydropower plant of the present invention: The partition cylinder is hollow, and filter holes are provided on the outer wall of the partition cylinder.

[0008] In a preferred embodiment of the sewage filtration device for a hydropower plant according to the present invention: The fishing bucket includes a fishing bucket body and a compartment provided on the side of the fishing bucket body, and the flap is provided at the bottom of the fishing bucket body.

[0009] In a preferred embodiment of the sewage filtration device for a hydropower plant according to the present invention: The flap is rotatably connected to the fishing bucket, and its rotating shaft leads to the compartment. A rotating wheel is provided at the end of the rotating shaft of the flap, and a limiting plate is provided on the side of the rotating wheel.

[0010] In a preferred embodiment of the sewage filtration device for a hydropower plant according to the present invention: A clamping groove is formed at the top of the rotating wheel, and an electric push rod is provided on the inner wall of the compartment.

[0011] In a preferred embodiment of the sewage filtration device for a hydropower plant according to the present invention: The electric push rod is provided above the rotating wheel, and the bottom of the electric push rod is matched with the clamping groove.

[0012] In a preferred embodiment of the sewage filtration device for a hydropower plant according to the present invention: The cleaning member includes an annular frame provided on the side of the bracket, and a slider is provided on the top of the annular frame.

[0013] In a preferred embodiment of the sewage filtration device for a hydropower plant according to the present invention: A cleaning plate is provided at the bottom of the slider, and cleaning teeth are provided on one side of the cleaning plate close to the separating cylinder.

[0014] In a preferred embodiment of the sewage filtration device for a hydropower plant according to the present invention: A sliding rod is provided on one 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 is matched with the spiral groove.

[0015] The beneficial effects of the present invention are as follows: By providing a separating cylinder and a fishing bucket, floating oil on the sewage surface can be collected, and solid waste can be filtered and collected during the collection process. Moreover, by providing a cleaning member, the filtering structure can be cleaned to reduce the formation of blockages. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure in the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the support member in the present invention.

[0019] Figure 3This is a schematic structural diagram of the fishing bucket in the present invention.

[0020] Figure 4 is Figure 3 an enlarged schematic view of location A in

[0021] Figure 5 This is a schematic structural diagram of the cleaning member in the present invention.

[0022] Figure 6 is Figure 5 an enlarged schematic view of location B in

[0023] Figure 7 This is a schematic structural diagram of the cleaning plate in the present invention.

[0024] In the figure: 1. Support member; 11. Bracket; 12. Partition cylinder; 13. Filter hole; 14. Barrier net; 2. Fishing member; 3. Cleaning member; 21. Telescopic rod; 22. Connecting frame; 23. Fishing bucket; 233. Flap; 234. Limiting edge; 141. Opening; 142. Bent strip; 231. Fishing bucket body; 232. Compartment; 235. Runner; 236. Limiting plate; 237. Card slot; 238. Electric push rod; 31. Ring-shaped frame; 32. Slide block; 33. Slide rod; 34. Cleaning plate; 35. Cleaning teeth; 211. Spiral groove. Detailed implementation manners

[0025] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the detailed implementation manners and the accompanying drawings.

[0026] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention. However, these terms can change according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms can be selected by the applicant, and in this case, 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 based on the meanings of the terms and the overall description of the present invention.

[0027] Refer to Figures 1 to 6, this embodiment provides a sewage filtration device for a hydropower plant, which mainly filters solid wastes such as construction waste and production waste floating on the surface of the sewage water body and floating oil, and filters and separates the floating oil for collection. It includes a support member 1, which includes a bracket 11, a separator cylinder 12 arranged at the bottom of the bracket 11, and a net 14 arranged on the outer wall of the separator cylinder 12. The support member 1 positions and supports the entire device. Among them, the bracket 11 is fixedly connected above the water body and can be directly fixed to the water body bank through a connecting member. The separator cylinder 12 and the net 14 are also fixedly connected to the bracket 11. The separator cylinder 12 not only supports the structure for salvage therein but also has a filtering function. At the same time, the net 14 collects the solid wastes floating on the water surface, which is beneficial for subsequent salvage; and, A salvage member 2, which includes a telescopic rod 21. Preferably, the telescopic rod 21 can be electric or a hydraulic rod, 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. 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 separator cylinder 12. Its outer wall is limited by the separator cylinder 12. The salvage bucket 23 can slide up and down with the expansion and contraction of the telescopic rod 21, and collect the floating oil on the water body during the movement. The separator cylinder 12 wraps it to stabilize its up and down movement stroke; and, A cleaning member 3. During the operation of the device, the separator cylinder 12 filters the solid wastes on the water body to prevent a large amount of solid wastes from entering the interior of the salvage bucket 23 along with the floating oil. After the device operates for a period of time, the filtering structure on the separator cylinder 12 may be blocked. The cleaning member 3 can clean the outer wall of the separator cylinder 12 to prevent the separator cylinder 12 from being blocked or delay the blocking of the separator cylinder 12 and ensure its filtering function; Among them, a flap 233 is arranged at the bottom of the salvage bucket 23, and a limiting edge 234 is arranged at the upper edge of the bottom of the salvage bucket 23 where the flap 233 is located. The flap 233 can be turned over at the bottom of the salvage bucket 23. Since the limiting edge 234 is arranged at the upper edge of the flap 233, it can only be turned downwards and cannot be turned upwards. The salvage bucket 23 moves up and down in the water. When the salvage bucket 23 moves upwards, the flap 233 is affected by its own gravity and the water resistance when moving upwards, and it will naturally turn downwards. Then the bottom of the salvage bucket 23 is communicated with the water body. When the salvage bucket 23 moves downwards, the water resistance of the flap 233 moving downwards is upwards. Then the flap 233 is affected by an upward force. However, because the limiting edge 234 at the upper edge prevents it from turning upwards, the flap 233 clings to the bottom of the salvage bucket 23. At this time, the bottom of the salvage bucket 23 is not communicated with the water body.

[0028] Usage process: The bracket 11 is fixedly connected above the water body through a connecting piece. The top of the separation cylinder 12 is slightly higher than the water surface, the top of the barrier net 14 is slightly lower than the top of the separation cylinder 12, and the top of the barrier net 14 is slightly lower than the water surface. As the telescopic rod 21 expands and contracts, 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. When the salvage bucket 23 moves to the lowest point, its top will be slightly lower than the water surface. At the beginning, the inside of the salvage bucket 23 is hollow or the water is not full. When the salvage bucket 23 moves downward to the lowest point, the water around the salvage bucket 23 will move towards the inside of the bucket. Thus, a water flow moving towards the inside of the salvage bucket 23 will be generated around the device. The floating oil floating on the water body will enter the inside of the salvage bucket 23 along with the water flow. At the same time, the floating oil in the salvage bucket 23 will also float on the water surface. After the salvage bucket 23 slides down to the lowest point and starts to move upward, at this time, the flap 233 will turn downward, and the bottom of the bucket body is communicated with the water body. After the top of the salvage bucket 23 moves out of the water surface, the water at the bottom of the bucket will flow out from the bottom of the bucket. The water surface of the oil-water mixture in the salvage bucket 23 will be level with the water surface of the water body. The salvage bucket 23 further rises, and a part of the bucket body is retained in the water and stops rising. At this time, most of the floating oil on the upper layer in the bucket will be retained in the bucket, and most of the water located at the bottom of the bucket will flow out from the bottom of the salvage bucket 23. The salvage bucket 23 continues to sink, the flap 233 closes, and the above process is repeated. However, during the repeated rising and falling process, the rising distance is slowly adjusted. After repeating this process, the floating oil on the water surface will accumulate in the bucket. As more floating oil accumulates in the salvage bucket 23, the rising distance becomes smaller. Over time, most of the bucket is floating oil and a small part is water. At this time, the floating oil accumulated in the bucket can be pumped out, or the flap 233 can be locked, and the salvage bucket 23 can be directly lifted to complete the collection and salvage of the floating oil.

[0029] Example 2, referring to Figures 1 to 6 , is the second example. Different from the previous example, the barrier net 14 is annular and wraps around the outer wall of the separation cylinder 12. The top height of the barrier net 14 is slightly lower than the top height of the separation cylinder 12. The height of the separation cylinder 12 is slightly higher than the water surface, and the height of the barrier net 14 is slightly lower than the water surface. During the downward movement of the salvage bucket 23, a water flow flowing towards the inside of the bucket is formed around the outer periphery of the bucket body. The water flow will drive the solid waste floating on the water surface of the water body to flow towards the salvage bucket 23 together. An opening 141 is formed in the area where the top of the barrier net 14 is close to the separation cylinder 12. The top of the barrier net 14 is processed into a bent strip 142. The flowing solid waste enters the barrier net 14 from the opening 141 along with the water flow. When the salvage bucket 23 rises, some solid waste will escape from the opening 141, and some solid waste is left in the upper part of the barrier net 14 by the bent strip 142.

[0030] Furthermore, the separation cylinder 12 is a hollow structure. Filter holes 13 are provided in the part of the outer wall of the separation cylinder 12 that is higher than the bottom of the barrier net 14. When the water flow drives the solid waste floating on the water surface of the water body to flow towards the salvage bucket 23 together, the solid waste will be intercepted by the separation cylinder 12 on the outer wall of the separation cylinder 12 and will not enter the inside of the salvage bucket 23 along with the floating oil, thereby filtering out the solid waste.

[0031] Using process: During the descent of the salvage bucket 23, solid waste and floating oil flow towards the salvage bucket 23 along with the water flow. Among them, the solid waste enters the net 14 through the opening 141 and is intercepted by the partition cylinder 12, while the floating oil enters the interior of the salvage bucket 23 through the filter holes 13. During the ascent of the salvage bucket 23, some solid waste will float away from the net 14, and some solid waste will be left in the net 14 by the bent structure of the net 14. Over time, a large amount of solid waste will be collected in the net 14, which is beneficial for subsequent salvage of solid waste. Fixed-point salvage can be carried out at the net 14, cleaning the water surface.

[0032] Example 3, referring to Figures 1 to 6 , which is the third embodiment. Different from the previous embodiment, the salvage bucket 23 includes a salvage bucket body 231 and a compartment 232 provided on the side of the salvage bucket body 231. The flap 233 is provided at the bottom of the salvage bucket body 231. The salvage bucket body 231 is responsible for temporarily storing the oil and water during the entire salvage process, while the compartment 232 is responsible for controlling the movement of the flap 233.

[0033] Furthermore, the flap 233 is rotatably connected to the salvage bucket 23, and its rotating shaft leads to the compartment 232. A runner 235 is provided at the end of the rotating shaft of the flap 233. The runner 235 is fixedly connected to the rotating shaft. A limiting plate 236 is provided on the side of the runner 235. The limiting plate 236 controls the maximum angle that the flap 233 can flip, preventing the flap 233 from flipping more than 90 degrees and being unable to rotate back during the ascent of the salvage bucket 23, resulting in the inability to close the bottom of the salvage bucket 23. A card slot 237 is opened at the top of the runner 235. When the flap 233 is in the closed state, the card slot 237 is located at the top of the runner 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 during operation and damaging the structure inside. The electric push rod 238 is provided above the runner 235, and the bottom of the electric push rod 238 is matched with the card slot 237. When the flap 233 is closed, the bottom of the electric push rod 238 can extend into the card slot 237 to prevent the runner 235 from rotating, thereby preventing the flap 233 from flipping. Thus, the flap 233 is locked, and the bottom of the salvage bucket body 231 is in a locked state.

[0034] Using process: After the salvage bucket body 231 repeats the ascending and descending process and most of the oil in the bucket is floating oil and a small part is water, the electric push rod 238 locks the flap 233, and the bottom of the salvage bucket body 231 is locked. At this time, the telescopic rod 21 can lift the entire salvage bucket 23 out of the water, stop moving, and wait for the staff to collect the floating oil from the bucket, completing the collection of the floating oil on the water surface and filtering out the solid waste in it.

[0035] Example 4, referring to Figures 1 to 7 , which is the fourth embodiment. Different from the previous embodiment, asFigure 6 As shown in the figure, the cleaning component 3 includes an annular frame 31 arranged on the side surface of the support 11. The annular frame 31 is fixedly connected to the support 11. A slider 32 is arranged at the top of the annular frame 31. The bottom of the slider 32 is clamped with the top of the support 11. The slider 32 can slide on the support 11. The slider 32 can rotate annularly above the partition cylinder 12. A cleaning plate 34 is arranged at the bottom of the slider 32. Cleaning teeth 35 are arranged on one side of the cleaning plate 34 close to the partition cylinder 12.

[0036] Furthermore, a sliding rod 33 is arranged on one side of the slider 32 close to the telescopic rod 21. A spiral groove 211 is arranged on the outer wall of the movable rod at the bottom of the telescopic rod 21. The spiral groove 211 is arranged on the upper part of the movable rod, and there is no spiral groove 211 on the lower part. One end of the sliding rod 33 away from the slider 32 is matched with the spiral groove 211. When the telescopic rod 21 extends to a sufficient length, that is, when the salvage bucket 23 moves to a sufficient water depth, the spiral groove 211 will contact the sliding rod 33. At this time, when the telescopic rod 21 continues to extend, it will drive the sliding rod 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.

[0037] Usage process: After the device operates for a period of time, the filter holes 13 on its partition cylinder 12 can be cleaned to prevent blockage. Specifically, when the telescopic rod 21 extends further and the salvage bucket 23 sinks deeper into the water body, the compartment 232 locks the flap 233 to close the salvage bucket 23. At this time, the telescopic rod 21 retracts to drive the salvage bucket 23 to rise, as Figure 7 shown in the figure. When the salvage bucket 23 rises at this time, it will form an upward water flow inside the partition cylinder 12 (as shown by the arrow in Figure 7 the figure). This water flow will backwash the solids remaining on the outer wall of the partition cylinder 12. At the same time, the cleaning plate 34 rotates on the outer wall of the partition cylinder 12 to clean the filter holes 13. The water flow and the cleaning plate 34 cooperate to clean, and the cleaning effect is better.

[0038] Finally, it should be pointed out that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A sewage filtration device for a hydropower plant, characterized in that: Comprising, A support member (1), including a bracket (11), a spacer cylinder (12) provided at the bottom of the bracket (11), and a retaining net (14) provided on the outer wall of the spacer cylinder (12); and, A fishing member (2), including a telescopic rod (21), a connecting frame (22) provided at the bottom of the telescopic rod (21), and a fishing bucket (23) provided at the bottom of the connecting frame (22); and, A cleaning member (3); A flap (233) is provided at the bottom of the fishing bucket (23), and a limiting edge (234) is provided at the upper edge of the flap (233) at the bottom of the fishing bucket (23).

2. The sewage filtration device for a hydropower plant according to claim 1, characterized in that: The retaining net (14) is annular, the retaining net (14) wraps around the outer wall of the spacer cylinder (12), the top height of the retaining net (14) is slightly lower than the top height of the spacer cylinder (12), an opening (141) is formed in the area of the top of the retaining net (14) close to the spacer cylinder (12), and the top of the retaining net (14) is processed into a bent strip (142).

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

4. The sewage filtration device for a hydropower plant according to claim 1, characterized in that: The fishing bucket (23) includes a fishing bucket body (231) and a compartment (232) provided on the side of the fishing bucket body (231), and the flap (233) is provided at the bottom of the fishing bucket body (231).

5. The sewage filtration device for a hydropower plant according to claim 4, characterized in that: The flap (233) is rotatably connected to the fishing bucket (23), the rotating shaft of the flap (233) leads to the compartment (232), a runner (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 runner (235).

6. The sewage filtration device for a hydropower plant according to claim 5, characterized in that: A clamping groove (237) is provided at the top of the runner (235), and an electric push rod (238) is provided on the inner wall of the compartment (232).

7. The sewage filtration device for a hydropower plant according to claim 6, characterized in that: The electric push rod (238) is provided above the runner (235), and the bottom of the electric push rod (238) is matched with the clamping groove (237).

8. The sewage filtration device for a hydropower plant according to claim 1, characterized in that: The cleaning member (3) includes an annular frame (31) provided on the side of the bracket (11), and a slider (32) is provided at the top of the annular frame (31).

9. The sewage filtration device for a hydropower plant according to claim 8, characterized in that: A cleaning plate (34) is provided at the bottom of the slider (32), and cleaning teeth (35) are provided on one side of the cleaning plate (34) close to the spacer cylinder (12).

10. The sewage filtration device for a hydropower plant according to claim 9, 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 the end of the sliding rod (33) away from the slider (32) is matched with the spiral groove (211).

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