Floating object collecting device for reservoir near-shore area of pumped storage power station

Abstract

The utility model relates to the technical field of pumped storage power stations, and provides a pumped storage power station reservoir near-shore area floating object collecting device which comprises an anti-permeation plate, a buoyancy net plate, a collecting bin, a supporting net, a lifting assembly and an impeller pump. The anti-permeation plate is mounted on the upstream face of the side slope concrete, and a distance is kept between the anti-permeation plate and the side slope concrete to form a collecting bin; an opening is formed in the anti-permeation plate and is communicated with the collecting bin and a water body in the reservoir; a pump outlet is formed in the position, below the opening, of the anti-permeation plate; the supporting net is arranged in the collecting bin, and the lifting assembly is used for lifting the supporting net; a water inlet of the impeller pump is located below the supporting net, and a water outlet of the impeller pump is right opposite to the pump outlet. Under the drainage effect of the impeller pump, floating objects on the water surface enter the collecting bin through the opening, the supporting net is used for lifting the floating objects in the collecting bin out of the collecting bin, centralized treatment of the floating objects at the top of slope concrete is facilitated, the floating object treatment efficiency is improved, and the labor intensity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pumped storage power station technical field, concretely relates to a kind of floating object collecting device of pumped storage power station reservoir nearshore area. BACKGROUND

[0002] Pumped storage power station includes lower reservoir, upper reservoir and reversible water turbine for pumping water from lower reservoir to upper reservoir, and the water level of the reservoir of pumped storage power station is in floating state. The nearshore area of reservoir water surface often has tree leaves, plant residues and other floating objects, and the conventional cleaning method is to manually use a cleaning pole with claws to fish floating objects, then throw the fished floating objects to the reservoir bank, and finally collect and clean the fished floating objects. Since the floating objects are soaked in water, it is laborious to throw them to the bank, and there is a situation that floating objects scatter on the slope during this process, and it is more difficult to clean the floating objects scattered on the slope, and the floating objects remaining on the slope will float on the water surface again as the water level of the reservoir rises. In summary, the traditional fishing rod manual fishing and collecting method for reservoir floating objects has the problems of poor cleaning effect, high labor intensity and low efficiency. SUMMARY

[0003] To solve the above problems in the prior art, the present application provides a floating object collecting device for pumped storage power station reservoir nearshore area to improve the cleaning efficiency of floating objects on the surface of the reservoir and reduce labor intensity.

[0004] The utility model provides a kind of floating object collecting device for pumped storage power station reservoir nearshore area, the reservoir includes slope body and the slope concrete of the water face of the slope body;The collecting device includes: impermeable board, buoyancy net board, collection bin, net support, lifting assembly and vane pump;The impermeable board is installed on the water face of the slope concrete, and the collection bin is formed with the spacing between the impermeable board and the slope concrete;Opening is provided on the impermeable board, and the opening communicates the collection bin and the water body in the reservoir;Pump outlet is provided below the opening of the impermeable board;The buoyancy net board is floatingly arranged on the backwater surface of the impermeable board, and part of the buoyancy net board is located in the collection bin;The net support is arranged in the collection bin and located between the slope concrete and the buoyancy net board;The length of the net support is longer than the length of the opening;The lifting assembly is installed on the slope concrete, and one end of the lifting assembly is connected to the net support for lifting the net support;The water inlet of the vane pump is located at the bottom of the collection bin and below the net support, and the water outlet of the vane pump is arranged opposite to the pump outlet.

[0005] Further, the lifting assembly comprises a winding mechanism, a first pull rope and a second pull rope; the winding mechanism is installed on the top of the slope concrete, one end of the first pull rope and the second pull rope is independently wound on the winding mechanism; the other end of the first pull rope is hinged to the side of the supporting net close to the slope concrete; the other end of the second pull rope is hinged to the side of the supporting net away from the slope concrete.

[0006] Further, the backwater surface of the buoyancy net plate is spaced apart in the height direction and is provided with a plurality of horizontal convex ribs; the side of the supporting net away from the slope concrete is in abutment with the bottom of one of the ribs.

[0007] Further, the top of the buoyancy net plate is provided with an internal cavity buoyancy strip.

[0008] Further, the water-facing surface of the buoyancy net plate is closely arranged on the backwater surface of the anti-seepage plate.

[0009] Further, the top of the buoyancy net plate is higher than the top of the supporting net; the height of the buoyancy net plate is higher than the height of the opening of the anti-seepage plate.

[0010] Further, the collection bin is provided with a separation filter screen, which is located between the supporting net and the water inlet of the impeller pump.

[0011] Further, the water inlet of the impeller pump is communicated with a hose, the hose is located in the collection bin, the other end of the hose is a free end, and the free end of the hose is connected with a ring-shaped floating ball, and the ring-shaped floating ball is located below the buoyancy net plate.

[0012] Further, the free end of the hose is provided with a floating ball filter screen, and the ring-shaped floating ball is surrounded by the outer wall of the hose.

[0013] Further, the anti-seepage plate is sequentially spliced in the length direction of the slope concrete; a plurality of pump outlets are arranged on each anti-seepage plate, and one impeller pump is arranged in the collection bin corresponding to each pump outlet.

[0014] The utility model discloses a beneficial effect is: through the slope concrete and the seepage prevention board enclosure formation collection storehouse, and set up the opening on the seepage prevention board, under the drainage of the impeller pump, the floating object of water surface enters the collection storehouse through the opening, and the net of lifting assembly lifts the collection storehouse, utilizes the net and lifts the floating object in the collection storehouse out of the collection storehouse, and the concentrated processing of floating object is convenient in the top of slope concrete, improves the floating object processing efficiency, reduces the labor intensity. Through setting up the buoyancy net board on the backwater surface of seepage prevention board, the buoyancy net board floats with the reservoir water level and can close the opening of seepage prevention board below the area of water surface, avoids the floating object that accumulated in the collection storehouse from the area below the water surface of opening backflow to the reservoir. Through setting up the rib on the backwater surface of buoyancy net board, utilizes the net and supports the rib, makes the buoyancy net board and the net synchronous follow the promotion, avoids the floating object above it from spilling over from the opening in the process of net lifting, guarantees the floating object collection effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the floating object collection device of the pumped storage power station reservoir nearshore area of the utility model.

[0016] Figure 2 It is Figure 1 The structure schematic diagram of the net in the opening state.

[0017] Figure 3 It is the local structure schematic diagram of the buoyancy net board of the utility model.

[0018] Figure 4 It is the structure schematic diagram of the seepage prevention board of 3 splices of the utility model.

[0019] Figure 5 It is the structure schematic diagram of the annular float ball and hose connection of the utility model.

[0020] In the drawing, 1-slope body;2-slope concrete;3-seepage prevention board;4-buoyancy net board;5-collection storehouse;6-net;7-impeller pump;8-winding mechanism;9-first pull rope;10-second pull rope;11-opening;12-pump outlet;13-hose;14-isolation screen;15-annular float ball;16-float ball screen;17-rib;18-buoyancy strip;19-floating object. DETAILED DESCRIPTION

[0021] The utility model is further described in detail in connection with the drawings and specific embodiment.

[0022] As Figures 1-5 The floating object collection device of the pumped storage power station reservoir nearshore area shows, and the reservoir includes the slope body 1 and sets up the slope concrete 2 on the water-facing surface of slope body 1.

[0023] The collecting device comprises an impervious plate 3, a buoyancy net plate 4, a collecting bin 5, a supporting net 6, a lifting assembly and an impeller pump 7; wherein the impeller pump 7 is powered by an existing power supply module of the power station.

[0024] The impervious plate 3 is installed on the water-facing surface of the slope concrete 2, and the collecting bin 5 is formed by maintaining a spacing between the impervious plate 3 and the slope concrete 2; the impervious plate 3 is multiple, and is sequentially spliced along the length direction of the slope concrete 2, and the spliced impervious plate 3, the water-facing surface of the slope concrete 2 and the extension platform of the bottom of the slope concrete 2 form the collecting bin 5. As shown in Figure 1 The bottom of the collecting bin 5 is the top of the extension platform of the slope concrete 2. The bottom of the impervious plate 3 is located on the water-facing surface of the extension platform of the slope concrete 2, and a spacing is maintained between the impervious plate 3 and the water-facing surface of the extension platform for the bottom of the buoyancy net plate 4 to be inserted.

[0025] The impervious plate 3 is provided with an opening 11, and the opening 11 is communicated with the collecting bin 5 and the water body in the reservoir; the impervious plate 3 is provided with a pump outlet 12 below the opening 11; the pump outlet 12 is located above the extension platform of the slope concrete 2. The length direction of the opening 11 is consistent with the length direction of the impervious plate 3, the height of the opening 11 is designed according to the water level difference of the reservoir, the top of the opening 11 is higher than the highest water level line of the reservoir, and the bottom of the opening 11 is lower than the lowest water level line of the reservoir, so that when the water level of the reservoir rises and falls, the floating objects 19 on the water surface can all enter the collecting bin 5 through the opening 11. In the embodiment, the impervious plate 3 is provided with two pump outlets 12 below the opening 11, and in some embodiments, the pump outlet 12 can be provided with more or less. The collecting bin 5 is provided with an impeller pump 7 corresponding to the position of each pump outlet 12. The impeller pump 7 plays a role of pumping water, and applies suction force at the bottom of the collecting bin 5, so that the water body in the collecting bin 5 flows downward and is discharged from the pump outlet 12, and due to the flow of the water body, the floating objects 19 on the water surface of the near-shore area of the reservoir approach the impervious plate 3, and finally enter the collecting bin 5 through the opening 11.

[0026] The collecting bin 5 is provided with a separation filter screen 14, and the separation filter screen 14 is located between the supporting net 6 and the water inlet of the impeller pump 7. The suspended matter in the collecting bin 5 is prevented from entering the impeller pump 7.

[0027] To improve the efficiency of the impeller pump 7, in this embodiment, a flexible hose 13 is connected to the inlet of the impeller pump 7. The flexible hose 13 is located inside the collection chamber 5. One end of the flexible hose 13 passes through the isolation filter screen 14 and connects to the inlet of the impeller pump 7. The other end of the flexible hose 13 is a free end, and an annular float 15 is connected to the free end of the flexible hose 13. The annular float 15 is located below the support net 6. The length of the flexible hose 13 is longer than the height of the collection chamber 5, so in most cases, the flexible hose 13 is in a relaxed state. Under the action of the annular float 15, the free end of the flexible hose 13 is as close as possible to the bottom of the support net 6. A float filter screen 16 is provided at the free end of the flexible hose 13. The annular float 15 surrounds the outer wall of the flexible hose 13. Under the action of the float filter screen 16, suspended solids in the water are further filtered to prevent suspended solids from entering the flexible hose 13 and causing blockage. The outer edge of the float filter screen 16 protrudes from the edge of the flexible hose 13, that is, the diameter of the float filter screen 16 is larger than the outer diameter of the flexible hose 13. In some embodiments, the bottom of the support net 6 is provided with a horizontal groove. The float filter 16 is inserted into the groove and can move along the length of the groove, but the float filter 16 cannot detach from the support net 6. Therefore, when the support net 6 is in the open state after being flipped, the hose 13 is also between the support net 6 and the slope concrete 2, so as to ensure that when the support net 6 is reset to the horizontal closed state, the hose 13 is still at the bottom of the support net 6. In this embodiment, the free end of the hose 13 is located near the side of the slope concrete 2, that is, near the first pull rope 9. Therefore, when the support net 6 is in the open state, the support net 6 is open at the end connected to the second pull rope 10. The free end of the hose 13 is subjected to the downward pressure of the support net 6 and usually does not move towards the buoyancy net plate 4, so it will not float up to the support net 6.

[0028] The lifting assembly includes a winding mechanism 8, a first pull rope 9, and a second pull rope 10. The winding mechanism 8 is installed on top of the slope concrete 2. One end of each of the first pull rope 9 and the second pull rope 10 is independently wound around the winding mechanism 8. The other end of the first pull rope 9 is hinged to the side of the support net 6 closest to the slope concrete 2; the other end of the second pull rope 10 is hinged to the side of the support net 6 furthest from the slope concrete 2. The winding mechanism 8 uses a winch, and multiple winches can be set. The first pull rope 9 and the second pull rope 10 are each connected to a winch, thereby achieving independent winding of the first pull rope 9 and the second pull rope 10. When the first pull rope 9 and the second pull rope 10 are wound, the support net 6 is lifted. When the second pull rope 10 is released independently, under the gravity of the support net 6, the support net 6 is in a position as follows: Figure 2 As shown in the open state, the degree of release of the second pull rope 10 controls the opening size of the net 6. In addition, when the net 6 is in the open state, releasing the first pull rope 9 causes the net 6 to descend, which can release the capacity of the collection chamber 5 and accommodate more floating objects 19 or suspended objects. Of course, this process requires the impeller pump 7 to be started and cooperated.

[0029] The top of the buoyancy net plate 4 is provided with a buoyancy strip 18 with an internal cavity, which provides buoyancy for the buoyancy net plate 4, so that the buoyancy net plate 4 closes the opening 11 of the impermeable plate 3 below the water surface. The backwater surface of the buoyancy net plate 4 is provided with a plurality of horizontal raised rib strips 17 in the height direction; the side of the supporting net 6 away from the slope concrete 2 abuts the bottom of one of the rib strips 17. The buoyancy net plate 4 is arranged to be inclined and floating on the backwater surface of the impermeable plate 3. The top of the buoyancy net plate 4 is higher than the top of the supporting net 6; the height of the buoyancy net plate 4 is higher than the height of the opening 11 of the impermeable plate 3.

[0030] In some embodiments, the water-facing surface of the buoyancy net plate 4 is covered with a layer of stainless steel plate, so that the buoyancy net plate 4 becomes a buoyancy plate, directly closing the opening 11 of the impermeable plate 3 below the water surface, and blocking the flow of the water body below the water surface as much as possible.

[0031] In some embodiments, the buoyancy strip 18 of the buoyancy net plate 4 is provided with a water injection port, which is communicated with a water injection pipe, and the water injection pipe is communicated with a water pump arranged in the reservoir. By injecting water or draining water into the internal cavity of the buoyancy strip 18, the buoyancy of the buoyancy net plate 4 can be adjusted, so that the top of the buoyancy net plate 4 is preferably 3-10 cm lower than the water surface.

[0032] Similarly, when the free end of the hose 13 is connected to the supporting net 6, the annular floating ball 15 can also be provided with a water injection port and communicated with a water injection pipe, and the water pump is used to inject water or drain water into the annular floating ball 15 to adjust the buoyancy of the annular floating ball 15, so as to adjust the height of the free end of the hose 13 in the water body, thereby adjusting the height of the supporting net 6, so that the height of the supporting net 6 is preferably 2-10 cm lower than the top of the buoyancy net plate 4.

[0033] In addition, when the supporting net 6 collects more floating objects 19 above, and the supporting net 6 needs to be lifted, the second pull rope 10 is first lifted to ensure that the supporting net 6 is horizontal, and the end of the supporting net 6 close to the second pull rope 10 is placed under the rib strip 17 at the same height, and then the first pull rope 9 and the second pull rope 10 are simultaneously wound to make the supporting net 6 rise, and at the same time, the buoyancy net plate 4 is lifted synchronously, and the water-facing surface of the buoyancy net plate 4, the supporting net 6 and the slope concrete 2 together form a U-shaped net bag space. During the lifting process of the net bag space, the floating objects 19 in the net bag space are lifted synchronously, and the floating objects 19 are lifted until they reach the top of the slope concrete 2 from the collection bin 5. After the floating objects 19 are cleaned, the supporting net 6 and the buoyancy net plate 4 are lowered into the collection bin 5, and the first pull rope 9 and the second pull rope 10 are released, so that the supporting net 6 is at a suitable height.

[0034] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application are also considered to be within the protection scope of the present application.

Claims

1. A floating object collecting device for a near-shore area of a pumped storage power station reservoir, the reservoir comprising a slope body and a slope concrete provided on a water-facing surface of the slope body, characterized by, The collecting device comprises an impervious plate, a buoyancy net plate, a collecting bin, a supporting net, a lifting assembly and an impeller pump; the impervious plate is installed on the water-facing surface of the slope concrete, and the collecting bin is formed between the impervious plate and the slope concrete; an opening is arranged on the impervious plate, and the opening is communicated with the collecting bin and the water body in the reservoir; a pump outlet is arranged below the opening of the impervious plate; the buoyancy net plate is arranged on the water-leaving surface of the impervious plate in a floating manner, and a part of the buoyancy net plate is located in the collecting bin; the supporting net is arranged in the collecting bin and between the slope concrete and the buoyancy net plate; the length of the supporting net is longer than the length of the opening; the lifting assembly is installed on the slope concrete, and one end of the lifting assembly is connected with the supporting net for lifting the supporting net; the water inlet of the impeller pump is located at the bottom of the collecting bin and below the supporting net, and the water outlet of the impeller pump is arranged opposite to the pump outlet.

2. A device for collecting floating objects in the near-shore zone of a pumped storage power plant reservoir according to claim 1, characterized in that, The lifting assembly comprises a winding mechanism, a first pull rope and a second pull rope; the winding mechanism is installed on the top of the slope concrete, and one end of each of the first pull rope and the second pull rope is independently wound on the winding mechanism; the other end of the first pull rope is hingedly connected with the side of the supporting net close to the slope concrete; the other end of the second pull rope is hingedly connected with the side of the supporting net away from the slope concrete.

3. A device for collecting floating objects in the near-shore zone of a pumped storage power plant reservoir according to claim 2, characterized in that, The water-leaving surface of the buoyancy net plate is spaced apart in the height direction and provided with a plurality of horizontal convex rib strips; the side of the supporting net away from the slope concrete is in abutment with the bottom of one of the rib strips.

4. A device for collecting floating objects in the near-shore zone of a pumped storage power plant reservoir according to claim 1, characterized in that, The top of the buoyancy net plate is provided with a buoyancy strip with an internal cavity.

5. A device for collecting floating objects in the near-shore zone of a pumped storage power plant reservoir according to claim 1, characterized in that, The water-facing surface of the buoyancy net plate is arranged close to the water-leaving surface of the impervious plate.

6. A device for collecting floating objects in the near-shore zone of a pumped storage power plant reservoir according to claim 1, characterized in that, The top of the buoyancy net plate is higher than the top of the supporting net; the height of the buoyancy net plate is higher than the height of the opening of the impervious plate.

7. A device for collecting floating objects in the near-shore zone of a pumped storage power plant reservoir according to claim 1, characterized in that, An isolation filter screen is arranged in the collecting bin, and the isolation filter screen is located between the supporting net and the water inlet of the impeller pump.

8. A device for collecting floating objects in the near-shore zone of a pumped storage power plant reservoir according to claim 1, characterized in that, The water inlet of the impeller pump is communicated with a hose, the hose is located in the collecting bin, the other end of the hose is a free end, and a ring-shaped floating ball is connected to the free end of the hose, and the ring-shaped floating ball is located below the buoyancy net plate.

9. A device for collecting floating objects in the near-shore zone of a pumped storage power plant reservoir according to claim 8, characterized in that, The free end of the hose is provided with a floating ball filter screen, and the ring-shaped floating ball surrounds the outer wall of the hose.

10. A device for collecting floating objects in the near-shore zone of a pumped storage power plant reservoir according to claim 1, characterized in that, A plurality of impervious plates are sequentially spliced along the length direction of the slope concrete; a plurality of pump outlets are arranged on each of the impervious plates, and one impeller pump is arranged at the position corresponding to each of the pump outlets of the collecting bin.

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