Dirt cleaning system for cold source trash holding net of nuclear power station

Abstract

The utility model belongs to the technical field of garbage collection, and particularly relates to a nuclear power station cold source trash holding net dirt cleaning system which comprises a first pipeline, a second pipeline, a plurality of foundation piles, a plurality of trash holding nets, a plurality of suction cylinders and a plurality of delivery pumps. The multiple foundation piles are arranged in the width direction of the river bank at intervals, one trash holding net is arranged between every two adjacent foundation piles, and one trash holding net is arranged between each foundation pile and the river bank. The multiple suction barrels are arranged, each suction barrel is arranged in front of the corresponding trash holding net, the suction barrels are arranged below the liquid level, each suction barrel is provided with an inner cavity, each inner cavity is provided with a top opening and a bottom opening, and the top openings face the liquid level; the conveying pumps are fixed to the foundation piles and connected with the suction cylinders in a one-to-one correspondence mode, feeding ports of the conveying pumps are connected with openings in the bottoms of the suction cylinders through first pipelines, and discharging ports of the conveying pumps are communicated to a garbage collection station through second pipelines. Garbage on the liquid level is conveyed to a garbage treatment station, the probability that the garbage blocks the trash holding net can be reduced, and manual garbage fishing is not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage collection, and particularly relates to a dirt cleaning system for a debris screen of a nuclear power plant cold source. Background Art

[0002] There is a prior debris screen cleaning device, which includes a slide rail vehicle, a telescopic column, a track and a cleaning module; the slide rail vehicle is installed on the track and slides on the track, the telescopic column is fixedly connected to the slide rail vehicle, the cleaning assembly is fixedly connected to the end of the telescopic column away from the slide rail vehicle, and the cleaning module includes a water gun with adjustable angle, and the water gun is used for cleaning the debris screen. This debris screen cleaning device uses a water gun with adjustable angle as the main cleaning method for underwater dirt cleaning, and utilizes the impact force of the water flow ejected by the water gun to remove the blockages attached to the surface of the debris screen, avoiding manual diving operations.

[0003] The existing method of cleaning the debris screen by water gun still requires manual salvage of dirt, otherwise there is still a risk of blocking the debris screen. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: aiming at the problem that the existing method of cleaning the debris screen by water gun still requires manual salvage of dirt, otherwise there is still a risk of blocking the debris screen, a dirt cleaning system for a debris screen of a nuclear power plant cold source is provided.

[0005] To solve the above technical problem, an embodiment of the utility model provides a dirt cleaning system for a debris screen of a nuclear power plant cold source,

[0006] including a plurality of first pipelines, a plurality of second pipelines, a plurality of foundation piles, a plurality of debris screens, a plurality of suction cylinders and a plurality of delivery pumps;

[0007] The plurality of foundation piles are adapted to be installed on the river channel at intervals in the width direction of the river channel, and one of the debris screens is connected between two adjacent foundation piles, and one of the debris screens is connected between each foundation pile and the river banks on both sides;

[0008] In front of each debris screen, one of the suction cylinders is arranged, the suction cylinder has an inner cavity, the inner cavity has a top opening and a bottom opening, and the top opening is lower than the upper edge of the debris screen in the height direction;

[0009] One of the delivery pumps is fixed on each foundation pile, the inlet of the delivery pump is above the bottom opening in the height direction, the inlet of the delivery pump is connected to the bottom opening through the first pipeline, and the outlet of the delivery pump is communicated to a garbage collection station arranged on the river bank through the second pipeline.

[0010] Optionally, the first pipeline is a flexible pipe.

[0011] Optionally, the trash screen is a rigid screen, and the suction cylinder is slidably arranged on the trash screen in the vertical direction.

[0012] Optionally, the trash screen is provided with a first through hole and a second through hole, the first through hole and the second through hole are arranged at intervals in the vertical direction, and both the first through hole and the second through hole extend in the vertical direction;

[0013] A trash screen dirt cleaning system for a nuclear power plant cold source further includes a first bolt and a second bolt. First threaded holes and second threaded holes are provided on the outer peripheral wall of the suction cylinder. The first bolt passes through the first through hole and is threadedly connected to the first threaded hole, and the second bolt passes through the second through hole and is threadedly connected to the second thread, so that the suction cylinder can slide relative to the trash screen in the vertical direction.

[0014] Optionally, it further includes a plurality of mounting brackets. The mounting bracket includes a sleeve, a first connecting rod and a second connecting rod. The sleeve is sleeved outside the suction cylinder, and a first through hole and a second through hole penetrating the wall of the sleeve are provided on the outer periphery of the sleeve; each suction cylinder corresponds to one mounting bracket;

[0015] The upper end of the first connecting rod of the mounting bracket located between two adjacent pile foundations is fixed on one of the pile foundations, the lower end of the first connecting rod of the mounting bracket located between two adjacent pile foundations is fixed on the outer periphery of the corresponding sleeve, the upper end of the second connecting rod of the mounting bracket located between two adjacent pile foundations is fixed on the other pile foundation, and the lower end of the second connecting rod of the mounting bracket located between two adjacent pile foundations is fixed on the outer periphery of the corresponding sleeve;

[0016] The upper end of the first connecting rod of the mounting bracket located between the pile foundation and the river bank is fixed on one of the pile foundations, the lower end of the first connecting rod of the mounting bracket located between the pile foundation and the river bank is fixed on the outer periphery of the corresponding sleeve, the upper end of the second connecting rod of the mounting bracket located between the pile foundation and the river bank is fixed on the river bank, and the lower end of the second connecting rod of the mounting bracket located between the pile foundation and the river bank is fixed on the outer periphery of the corresponding sleeve;

[0017] It further includes a first screw and a second screw. First threaded holes and second threaded holes are provided on the outer peripheral wall of the suction cylinder. The first screw passes through the first through hole and is threadedly connected to the first threaded hole, and the second screw passes through the second through hole and is threadedly connected to the second thread, so that the suction cylinder can slide relative to the sleeve in the vertical direction.

[0018] Optionally, the trash screen is a rigid screen or a flexible screen.

[0019] Optionally, a floating block is fixed to the outside of the suction cylinder, and the floating block is used to provide buoyancy for the suction cylinder.

[0020] Optionally, a plurality of floating blocks are provided, and the plurality of floating blocks are arranged around the outer periphery of the suction cylinder.

[0021] Optionally, the plurality of floating blocks are evenly distributed along the outer periphery of the suction cylinder.

[0022] Optionally, a filter screen is arranged in the inner cavity of the suction cylinder. The outer edge of the filter screen is connected to the inner wall of the suction cylinder. The filter screen is located above the bottom opening in the height direction, and the filter screen and the bottom opening are arranged at intervals.

[0023] According to a dirt cleaning system for a nuclear power plant cold source trash rack of an embodiment of the present invention, the suction cylinder is arranged before the trash rack. The suction cylinder is connected to a delivery pump through a first pipeline. The delivery pump conveys garbage to a garbage treatment station through a second pipeline. When the garbage driven by the water flow passes through the suction cylinder, it is sucked into the delivery pump by the suction cylinder, and the delivery pump continues to convey the garbage to the garbage treatment station, thereby collecting the garbage and reducing the probability of the trash rack being blocked by garbage. Description of the Drawings

[0024] Figure 1 It is an overall schematic diagram of a dirt cleaning system for a nuclear power plant cold source trash rack provided by an embodiment of the present invention;

[0025] Figure 2 It is a three-dimensional schematic diagram of a dirt cleaning system for a nuclear power plant cold source trash rack provided by an embodiment of the present invention;

[0026] Figure 3 It is a matching schematic diagram of a trash rack and a suction cylinder of a dirt cleaning system for a nuclear power plant cold source trash rack provided by an embodiment of the present invention;

[0027] Figure 4 It is a sectional view schematic diagram of a suction cylinder of a dirt cleaning system for a nuclear power plant cold source trash rack provided by an embodiment of the present invention;

[0028] Figure 5 It is a structural schematic diagram of a mounting rack of a dirt cleaning system for a nuclear power plant cold source trash rack provided by an embodiment of the present invention.

[0029] The reference numerals in the description are as follows: 1. Trash screen; 11. First through hole; 12. Second through hole; 13. First perforation; 14. Second perforation; 2. Foundation pile; 3. Delivery pump; 4. Suction cylinder; 41. First threaded hole; 42. Second threaded hole; 43. Top opening; 44. Bottom opening; 45. Filter screen; 46. First bolt; 47. Second bolt; 48. First screw; 49. Second screw; 5. First pipeline; 6. Second pipeline; 71. Sleeve; 72. First connecting rod; 73. Second connecting rod; 8. Floating block; 9. Waste treatment station. Detailed implementation manners

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] As Figure 1 and Figure 2 shown, an embodiment of the present utility model provides a trash cleaning system for a nuclear power plant cold source trash screen, including a plurality of first pipelines 5, a plurality of second pipelines 6, a plurality of foundation piles 2, a plurality of trash screens 1, a plurality of suction cylinders 4 and a plurality of delivery pumps 3; the plurality of foundation piles 2 are adapted to be installed on the river channel at intervals in the width direction of the river channel, and one trash screen 1 is connected between two adjacent foundation piles 2, and one trash screen 1 is connected between each foundation pile 2 and the river banks on both sides; in front of each trash screen 1, one suction cylinder 4 is arranged, the suction cylinder 4 has an inner cavity, the inner cavity has a top opening 43 and a bottom opening 44, and the top opening 43 is lower than the upper edge of the trash screen 1 in the height direction;

[0032] One delivery pump 3 is fixed on each foundation pile 2, the inlet of the delivery pump 3 is located above the bottom opening 44 in the height direction, the inlet of the delivery pump 3 is connected to the bottom opening 44 through the first pipeline 5, and the outlet of the delivery pump 3 is communicated to a trash collection station arranged on the river bank through the second pipeline 6.

[0033] The delivery pump 3 can be a trash pump or a sewage pump. Optimally, the delivery pump 3 is a sewage pump with a shredding function.

[0034] In this embodiment, the trash floating on the liquid surface is sucked into the delivery pump 3 by the suction cylinder 4, and the delivery pump 3 continues to transport the trash to the waste treatment station 9, so as to collect the trash, and the probability of the trash blocking the trash screen 1 can be reduced.

[0035] In one embodiment, the first pipeline 5 is a metal pipeline and cannot be bent randomly, and the suction cylinder 4 can be stably placed in the river through the first pipeline 5.

[0036] Referring to Figure 2 and Figure 3 , in one embodiment, the first pipeline 5 is a flexible hose. The trash screen 1 is a rigid screen, and the suction cylinder can slide up and down on the rigid screen.

[0037] Specifically, the trash screen 1 is provided with a first through hole 11 and a second through hole 12. The first through hole 11 and the second through hole 12 penetrate the trash screen 1 along the thickness direction of the trash screen 1 respectively. The first through hole 11 and the second through hole 12 are spaced apart in the up and down direction, and both the first through hole 11 and the second through hole 12 extend in the up and down direction.

[0038] A trash cleaning system for a nuclear power plant cold source trash screen includes a first bolt 47 and a second bolt 48. The cylinder body 46 is provided with a first threaded hole 41 and a second threaded hole 42. The first bolt 47 passes through the first through hole 11 and is threadedly connected to the first threaded hole 41, and the second bolt 48 passes through the second through hole 12 and is threadedly connected to the second thread, so that the suction cylinder 4 slides relative to the trash screen in the up and down direction.

[0039] The trash screen 1 in this embodiment is a metal screen made of hard material, which can be selected to brush anti-rust paint on the surface of the wire mesh, or choose anti-rust treatment means such as galvanizing the surface of the wire mesh or copper plating the surface of the wire mesh. The trash screen 1 is fixed to the foundation pile 2 or the river bank by bolts or other means. In this embodiment, the trash screen must be a rigid screen and can withstand the wear caused by multiple up and down slides. On the contrary, if the trash screen is a flexible screen, in order to enable the suction cylinder to slide up and down, the trash screen must be kept straight. The flexible screen is easily damaged when it is in a straight state for a long time, and the cost is high.

[0040] The cooperation between the first through hole 11 provided on the trash screen 1 and the first bolt 47 on the cylinder body 46, and the cooperation between the second through hole 12 provided on the trash screen 1 and the second bolt 48 on the cylinder body 46 can, on the one hand, play the role of guiding the up and down sliding of the suction cylinder 4, and on the other hand, the first through hole 11 and the second through hole 12 can prevent the suction cylinder 4 from deflecting, keeping the top opening 43 of the suction cylinder 4 always facing the liquid surface, and as much as possible ensuring that the central axis of the suction cylinder 4 is perpendicular to the liquid surface, avoiding an angle between the central axis of the suction cylinder 4 and the liquid surface, so as to suck the garbage on the liquid surface into the suction cylinder 4.

[0041] Referring to Figure 3 , as an example, a plurality of floating blocks 8 are arranged outside the cylinder body 46, and the plurality of floating blocks 8 are evenly arranged around the suction cylinder 4. In this embodiment, the floating blocks 8 can provide an upward buoyancy force to the suction cylinder 4, thereby dynamically adjusting the up and down position of the suction cylinder 4, so that the distance between the suction cylinder 4 and the liquid surface is always in a reasonable position, avoiding that after the liquid level drops, the suction cylinder 4 is located on the liquid surface and affects the function of sucking garbage.

[0042] In other embodiments, the floating blocks 8 do not need to be evenly arranged.

[0043] Referring to Figure 4 , as an example, a filter screen 45 is arranged in the inner cavity of the suction cylinder 4. The outer edge of the filter screen is connected to the inner wall of the suction cylinder. The filter screen 45 is located above the bottom opening 44, and the filter screen 45 and the bottom opening 44 are arranged at intervals. In this embodiment, the transfer pump 3 can be selected to work 24 hours. Most of the garbage can pass through the filter screen 45, but the garbage with a size larger than the feed inlet of the transfer pump 3 is intercepted. The aperture of the filter screen 45 is preferably the same as the diameter of the feed pipe of the transfer pump 3.

[0044] In some embodiments, the diameter of the suction cylinder 4 gradually decreases in the up and down direction. The suction cylinder 4 can be selected to have a flared structure, so as to expand the top opening 43 and have a wider range for sucking in garbage.

[0045] Referring to Figure 5 , in some embodiments, a dirt cleaning system for a nuclear power plant cold source trash rack further includes a plurality of mounting frames. The mounting frame includes a sleeve 71, a first connecting rod 72 and a second connecting rod 73. The sleeve 71 is sleeved outside the suction cylinder 4. A first through hole 13 and a second through hole 14 penetrating the wall of the sleeve 71 are arranged on the outer periphery of the sleeve 71; each suction cylinder 4 corresponds to one mounting frame;

[0046] The upper end of the first connecting rod 72 of the mounting frame located between two adjacent pile foundations 2 is fixed on one of the pile foundations 2, the lower end of the first connecting rod 72 of the mounting frame located between two adjacent pile foundations 2 is fixed on the outer periphery of the corresponding sleeve 71, the upper end of the second connecting rod 73 of the mounting frame located between two adjacent pile foundations 2 is fixed on the other pile foundation 2, and the lower end of the second connecting rod 73 of the mounting frame located between two adjacent pile foundations 2 is fixed on the outer periphery of the corresponding sleeve 71;

[0047] The upper end of the first connecting rod 72 of the mounting frame located between the pile foundation 2 and the river bank is fixed on one of the pile foundations 2, the lower end of the first connecting rod 72 of the mounting frame located between the pile foundation 2 and the river bank is fixed on the outer periphery of the corresponding sleeve 71, the upper end of the second connecting rod 73 of the mounting frame located between the pile foundation 2 and the river bank is fixed on the river bank, and the lower end of the second connecting rod 73 of the mounting frame located between the pile foundation 2 and the river bank is fixed on the outer periphery of the corresponding sleeve 71;

[0048] A dirt cleaning system for the cooling water intake screen of a nuclear power plant further includes a first screw 48 and a second screw 49. A first threaded hole 401 and a second threaded hole 402 are provided on the outer peripheral wall of the suction cylinder 4. The first screw 48 passes through the first through hole 13 and is threadedly connected to the first threaded hole 401, and the second screw 49 passes through the second through hole 14 and is threadedly connected to the second threaded hole, so that the suction cylinder 4 can slide relative to the sleeve 71 in the vertical direction.

[0049] Compared with the above embodiment, in this embodiment, the suction cylinder 4 is fixed by the mounting bracket, and the suction cylinder 4 can slide in the vertical direction, and the top opening 43 of the suction cylinder 4 always faces upward to face the liquid surface. Combined with a plurality of floating blocks 8 provided on the outside of the cylinder body 46, the plurality of floating blocks 8 are arranged around the suction cylinder 4, so that the suction cylinder 4 can float in the vertical direction.

[0050] In this embodiment, the trash screen 1 is a flexible screen, and the bottom of the trash screen 1 is lower than the top opening 43 of the suction cylinder 4. The trash screen 1 can be made of plastic material or synthetic fiber, etc., such as a nylon filter screen 45, which can reduce the cost of the trash screen 1. Since the flexible trash screen 1 may sway with the water flow, in order to prevent the trash screen 1 from being sucked into the suction cylinder 4 by the suction force of the transfer pump 3, the bottom of the trash screen 1 must be far lower than the suction cylinder 4.

[0051] Of course, in this embodiment, the trash screen 1 can also be a rigid screen. The first pipeline in this embodiment is also a flexible pipe.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A nuclear power plant cold source pollution screen waste cleaning system, characterized in that: It includes a plurality of first pipelines, a plurality of second pipelines, a plurality of foundation piles, a plurality of trash screens, a plurality of suction cylinders and a plurality of delivery pumps; A plurality of said foundation piles are suitable for being installed on the river channel at intervals along the width direction of the river channel, a said trash-blocking net is connected between two adjacent said foundation piles, and a said trash-blocking net is connected between said foundation piles and the river banks on both sides; A suction cylinder is arranged in front of each of the trash-blocking nets, the suction cylinder having an inner cavity, the inner cavity having a top opening and a bottom opening, and the top opening is lower than the upper edge of the trash-blocking net in the height direction; A delivery pump is fixed on each of the foundation piles, the inlet of the delivery pump is located above the bottom opening in the height direction, the inlet of the delivery pump is connected to the bottom opening through the first pipe, and the outlet of the delivery pump is connected to the garbage collection station arranged on the river bank through the second pipe.

2. The nuclear power plant cold source pollution screening system according to claim 1 is characterized in that: The first pipeline is a hose.

3. The nuclear power plant cold source pollution screening system according to claim 2 is characterized in that: The trash-blocking net is a rigid net, and the suction cylinder is slidably arranged on the trash-blocking net along the up-down direction.

4. The nuclear power plant cold source pollution screen waste cleaning system according to claim 3 is characterized in that: The trash-blocking net is provided with a first through hole and a second through hole, the first through hole and the second through hole are arranged at intervals in the up-down direction, and the first through hole and the second through hole both extend in the up-down direction; The nuclear power plant cold source pollution control net waste cleaning system also includes a first bolt and a second bolt. A first threaded hole and a second threaded hole are provided on the outer peripheral wall of the suction cylinder. The first bolt is passed through the first through hole and threadedly connected to the first threaded hole. The second bolt is passed through the second through hole and threadedly connected to the second thread, so that the suction cylinder can slide in the up and down directions relative to the pollution control net.

5. The nuclear power plant cold source pollution screening net waste cleaning system according to claim 3 is characterized in that: It also includes a plurality of mounting frames, the mounting frames including a sleeve, a first connecting rod and a second connecting rod, the sleeve is hollowly sleeved outside the suction cylinder, and the outer circumference of the sleeve is provided with a first through hole and a second through hole penetrating through the cylinder wall of the sleeve; each suction cylinder corresponds to one mounting frame; The upper end of the first connecting rod of the mounting frame located between two adjacent foundation piles is fixed to one of the foundation piles, the lower end of the first connecting rod of the mounting frame located between two adjacent foundation piles is fixed to the outer periphery of the corresponding sleeve, the upper end of the second connecting rod of the mounting frame located between two adjacent foundation piles is fixed to the other foundation pile, and the lower end of the second connecting rod of the mounting frame located between two adjacent foundation piles is fixed to the outer periphery of the corresponding sleeve; The upper end of the first connecting rod of the mounting frame located between the foundation pile and the river bank is fixed to one of the foundation piles, the lower end of the first connecting rod of the mounting frame located between the foundation pile and the river bank is fixed to the outer periphery of the corresponding sleeve, the upper end of the second connecting rod of the mounting frame located between the foundation pile and the river bank is fixed to the river bank, and the lower end of the second connecting rod of the mounting frame located between the foundation pile and the river bank is fixed to the outer periphery of the corresponding sleeve; It also includes a first screw and a second screw. A first threaded hole and a second threaded hole are provided on the outer peripheral wall of the suction tube. The first screw is passed through the first through hole and threadedly connected to the first threaded hole. The second screw is passed through the second through hole and threadedly connected to the second thread, so that the suction tube can slide in the up and down directions relative to the sleeve.

6. The nuclear power plant cold source pollution screening system according to claim 5 is characterized in that: The trash-blocking net is a rigid net or a flexible net.

7. The nuclear power plant cold source pollution screening system according to claim 1 is characterized in that: A floating block is fixed on the outside of the suction cylinder, and the floating block is used to provide buoyancy for the suction cylinder.

8. The nuclear power plant cold source pollution screening system according to claim 7 is characterized in that: A plurality of the floating blocks are provided, and the plurality of the floating blocks are arranged around the outer circumference of the suction cylinder.

9. The nuclear power plant cold source pollution screen waste cleaning system according to claim 8, characterized in that: A plurality of the floating blocks are evenly distributed along the outer circumference of the suction tube.

10. The nuclear power plant cold source pollution screening system according to claim 1, characterized in that: A filter screen is arranged in the inner cavity of the suction cylinder, the outer edge of the filter screen is connected to the inner wall of the suction cylinder, the filter screen is located above the bottom opening in the height direction, and the filter screen and the bottom opening are arranged at intervals.

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