CN216615768U

CN216615768U - High-efficient system of decontaminating of power station reservoir area

Info

Publication number: CN216615768U
Application number: CN202123323080.9U
Authority: CN
Inventors: 窦友宽; 王学辉; 李顽华
Original assignee: Lubuge Hydropower Plant Of Southern Power Grid Peaking Frequency Modulation Power Generation Co ltd
Current assignee: Lubuge Hydropower Plant Of Southern Power Grid Peaking Frequency Modulation Power Generation Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-27
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a high-efficiency dirt removing system for a reservoir area of a hydropower station, which comprises a water retaining dam body and a dirt blocking net arranged at the upstream of the water retaining dam body, wherein the dirt blocking net comprises an inclined dirt guiding section, a horizontal section and a vertical section which are of an integrated structure, a dirt gathering section is formed among the horizontal section, the vertical section and the edge of a river channel, a belt conveyor is obliquely arranged between the dirt gathering section and the water retaining dam body, the higher end of the belt conveyor is fixed on the water retaining dam body, the lower end of the belt conveyor extends into the dirt gathering section, a plurality of pushing plates are arranged on the conveyor belt of the belt conveyor at intervals, and a dirt storage groove is arranged on the water retaining dam body below the higher end of the belt conveyor. The utility model has wide application range, high working efficiency, good decontamination effect and obvious economic and social values.

Description

High-efficient system of decontaminating of power station reservoir area

Technical Field

The utility model relates to the technical field of cleaning of hydroelectric power reservoir areas, in particular to a high-efficiency cleaning system for a hydropower station reservoir area.

Background

The hydropower station is a comprehensive engineering facility for converting water energy into electric energy, and generally comprises a reservoir, a water diversion system, a power generation plant, electromechanical equipment and the like, wherein the reservoir is formed by a water retaining structure and a water release structure, high-level water in the reservoir flows into the power generation plant through the water diversion system to push a water-turbine generator set to generate electric energy, and then the electric energy is input into a power grid through a step-up transformer, a switching station and a power transmission line. The reservoir of hydropower station is often built according to the mountain, dirt such as branches and woods on the mountain and upstream domestic garbage can be gathered to the side of a dam bank of a reservoir area after being blown and dried by the sun, the hydroelectric generating set is destroyed by breaking blades of the hydroelectric generating set in order to prevent the debris from being introduced into a water turbine, in the past, a traditional dirt blocking grid and manual auxiliary dirt cleaning mode is basically adopted in a power station, and the problems that the cleaning efficiency is low, the labor intensity of workers during dirt discharging operation is high, the energy consumption is serious and extremely dangerous, the long period of continuous cleaning, the long interval period and the like exist, a large amount of floaters are often gathered in the reservoir area, and the serious potential safety hazard is brought to the safe operation of the hydroelectric generating set.

At present, the clearance of power station floater has following several kinds of clearance modes: firstly, the trash remover is adopted, the operation of the trash remover depends on the traveling crane, and the installation of the traveling crane is limited in some special environments, so that the use of the trash remover is limited; secondly, in small hydropower stations in mountainous areas of China, water surfaces are cleaned mainly by means of manually assisted cranes, so that the efficiency is low, the energy consumption is high, and potential safety hazards are high; thirdly, a movable salvage ship is used, the problems of high energy consumption, high investment and the like exist in the salvage mode, supporting facilities such as a wharf and the like need to be built, the salvage ship is limited by the water level, the salvage ship is difficult to use in places with insufficient water depth, and floating objects on the water surface often exist at the edge of the water area, so that the salvage dead angle of the salvage ship is formed, and the floating objects cannot be cleaned; fourthly, in the operation process of the hydropower station, the height difference between the lowest operation water level and the highest operation water level is large generally, in order to intercept the dirt of the highest water level and conveniently clean the dirt on a platform on the top of the sluice gate, the height of the trash rack needs to be built to the top of the sluice gate, when the hydropower station is in the operation of a lower water level, the dirt on the water surface can be attached to the lower part of the trash rack, and the dirt is difficult to clean. Therefore, the development of a hydropower station reservoir area efficient decontamination system which is wide in application range, high in working efficiency and good in decontamination effect is objectively needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-efficiency cleaning system for a hydropower station reservoir area, which has the advantages of wide application range, high working efficiency and good cleaning effect.

The utility model aims to realize the purpose, and the sewage treatment device comprises a water retaining dam body and a sewage blocking net arranged at the upstream of the water retaining dam body, wherein the sewage blocking net comprises an inclined sewage guide section, a horizontal section and a vertical section which are of an integral structure, a sewage gathering area is formed among the horizontal section, the vertical section and the edge of a river channel, a belt conveyor is obliquely arranged between the sewage gathering area and the water retaining dam body, the higher end of the belt conveyor is fixed on the water retaining dam body, the lower end of the belt conveyor extends into the sewage gathering area, a plurality of push plates are arranged on the conveyor belt of the belt conveyor at intervals, and a sewage storage groove is arranged on the water retaining dam body below the higher end of the belt conveyor.

Further, the inclined angle between the inclined dirt guiding section and the water flow direction of the river channel is 60-80 degrees.

Furthermore, skirt type flanges are arranged on two sides of the conveying belt in the belt conveyor.

Furthermore, a plurality of draining holes are processed on the conveying belt of the belt conveyor.

Furthermore, the belt conveyor comprises a rack and a conveying main body arranged on the rack, the higher end of the rack is fixedly connected with the water retaining dam body through a stand column, the upper end of the stand column is hinged with the rack, an adjusting cylinder is arranged between the water retaining dam body and the rack, and a cylinder seat of the adjusting cylinder is hinged with the side wall of the water retaining dam body and the end part of a piston rod of the adjusting cylinder is hinged with the bottom of the rack through hinge pieces.

Furthermore, a camera is arranged on the edge of the river channel on one side of the dirt gathering area.

Further, block dirty net and include the telescopic link that a plurality of equidistant settings, the lower extreme of every telescopic link all is provided with the balancing weight, and the upper end of a plurality of telescopic links is provided with the cavity of a body structure and floats the body, all overlaps on every telescopic link to be equipped with flexible cover, and the body coupling is floated with the cavity to the upper end of flexible cover, and the lower extreme is connected with the balancing weight, all is provided with flexible net between every two adjacent flexible cover.

Furthermore, a trash baffle plate is arranged at the top of the hollow floating body.

Furthermore, a plurality of transverse supporting bars are arranged between two adjacent flexible telescopic sleeves at intervals up and down.

Furthermore, the edge of the river channel at the two sides of the downstream of the trash rack is provided with an anti-falling vertical plate, and the side surface of the hollow floating body is abutted against the anti-falling vertical plate.

The utility model has the following beneficial effects:

firstly, the inclined dirt guiding section and the dirt gathering area are arranged, on one hand, the inclined dirt guiding section can intercept dirt in a river channel and prevent the dirt from continuously flowing towards the direction of a water retaining dam body, so that the dirt is prevented from flowing into a power generation plant from a water inlet and causing damage to units such as a water turbine and the like, on the other hand, after the dirt is intercepted, the dirt can move along the inclined dirt guiding section and cannot be accumulated on the inclined dirt guiding section under the action of water flow impact, therefore, blockage of a dirt blocking net at the inclined dirt guiding section is avoided, a good dirt blocking effect is kept, the intercepted dirt finally enters the dirt gathering area, the dirt gathering area is an area for accumulating the dirt, and the dirt intercepted by the dirt blocking net can enter the area for temporary storage.

And secondly, the belt conveyor only needs to be opened at intervals, and only needs to be opened when the dirt in the dirt gathering area is gathered to a certain degree, so that the belt conveyor is prevented from running in a no-load mode, and the effect of reducing energy consumption can be achieved.

Thirdly, the belt conveyor is obliquely arranged, the lower end of the belt conveyor extends into the dirt gathering area, when the belt conveyor is actually used, the height of the lower end of the belt conveyor extending into the dirt gathering area is determined according to needs, when the dirt is floating, the lower end of the belt conveyor extends into the position below the water surface of the dirt gathering area, and when the dirt contains more suspended matters or precipitates, the lower end of the belt conveyor can extend into the bottom of the dirt gathering area.

In conclusion, the operation of the utility model is not dependent on a crane and is not influenced by the height of the water level, the utility model can be used in various environments, and relatively speaking, the utility model has wider application range; secondly, the utility model does not need to use a salvage ship during operation, does not need manual work to clean the dirt, can automatically clean the dirt, has higher working efficiency, higher safety performance and relatively smaller investment, does not have fishing dead angles during dirt cleaning, can play a better role in cleaning the dirt such as floaters, suspended matters, sediments and the like, and can clean the dirt more thoroughly. The utility model has wide application range, high working efficiency, good decontamination effect and obvious economic and social values.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of a trash rack 2 of the present invention;

FIG. 3 is an enlarged view of node A in FIG. 2;

fig. 4 is a schematic structural view of the belt conveyor 5 of the present invention;

in the figure: 1-a water retaining dam body, 2-a trash rack, 201-an inclined trash guiding section, 202-a horizontal section, 203-a vertical section, 204-a telescopic rod, 205-a balancing weight, 206-a hollow floating body, 207-a flexible telescopic sleeve, 208-a flexible net, 209-a trash rack, 210-a transverse supporting strip, 3-a river channel, 4-a trash gathering area, 5-a belt conveyor, 501-a rack, 502-a conveying main body, 6-a pushing plate, 7-a trash storage tank, 8-a skirt-type flange, 9-an upright column, 10-an adjusting cylinder, 11-a camera and 12-an anti-falling vertical plate.

Detailed Description

The present invention is further described with reference to the drawings, but the present invention is not limited thereto in any way, and any modification or improvement based on the present invention is within the protection scope of the present invention.

As shown in fig. 1 to 4, the utility model comprises a water retaining dam body 1 and a dirt blocking net 2 arranged at the upstream of the water retaining dam body 1, wherein the dirt blocking net 2 comprises an inclined dirt guiding section 201, a horizontal section 202 and a vertical section 203 which are integrally structured, a dirt collecting area 4 is formed between the horizontal section 202, the vertical section 203 and the edge of a river channel 3, a belt conveyor 5 is obliquely arranged between the dirt collecting area 4 and the water retaining dam body 1, the higher end of the belt conveyor 5 is fixed on the water retaining dam body 1, the lower end of the belt conveyor extends into the dirt collecting area 4, a plurality of pushing plates 6 are arranged on the conveyor belt of the belt conveyor 5 at intervals, and a dirt storage groove 7 is arranged on the water retaining dam body 1 below the higher end of the belt conveyor 5.

The utility model is provided with the inclined dirt guiding section 201 and the dirt gathering area 4, on one hand, the inclined dirt guiding section 201 can intercept dirt in a river channel 3, prevent the dirt from continuously flowing towards the direction of the water retaining dam body 1, prevent the dirt from flowing into a power generation plant from a water inlet and causing damage to units such as a water turbine and the like, on the other hand, after the dirt is intercepted, the dirt can move along the inclined dirt guiding section 201 under the impact action of water flow and can not be accumulated on the inclined dirt guiding section 201, so that the blockage of a dirt blocking net at the inclined dirt guiding section 201 is avoided, a good dirt blocking effect is kept, the intercepted dirt can finally enter the dirt gathering area 4, the dirt gathering area 4 is an area for accumulating the dirt, the dirt intercepted by the dirt blocking net 2 can enter the area for temporary storage, the belt conveyor 5 only needs to be opened at intervals, and only needs to be opened when the dirt in the dirt gathering area 4 is accumulated to a certain degree, prevent belt conveyor 5 no-load operation, can play the effect that reduces the energy consumption, belt conveyor 5 slope sets up, its lower one end stretches into gather in dirty district 4, during the in-service use, belt conveyor 5 lower extreme stretches into and gathers the height in dirty district 4 and confirm as required, when the filth all is the floater, its lower extreme stretches into gather under the dirty district 4 surface of water can, and when containing more suspended solid or precipitate in the filth, can stretch into the bottom in the dirty district 4 with its lower extreme, all in a word, be convenient for clear away all filths clean can, after gathering the filth in dirty district 4 and gathering to a certain extent, start belt conveyor 5, belt conveyor 5 operation can be carried the filth to dirt storage tank 7.

Preferably, the dirty section 201 of slope is led and the contained angle between the 3 rivers directions in river course is 60 ~ 80, and specific angle can be confirmed according to actual conditions, and the construction of being convenient for also be convenient for to the filth intercept and the water conservancy diversion can.

The two sides of the conveying belt in the belt conveyor 5 are provided with skirt type flanges 8, the skirt type flanges 8 are of the existing structures and are arranged on the two sides of the conveying belt, and dirt on the conveying belt can be prevented from sliding off from the two sides of the conveying belt.

Processing has a plurality of waterlogging caused by excessive rainfall holes on belt conveyor 5's the conveyer belt, because the setting in waterlogging caused by excessive rainfall hole for when the filth of dragging for from the river carries on belt conveyor 5's conveyer belt, the moisture that has on the filth can leak down from the waterlogging caused by excessive rainfall hole, can prevent this part moisture accumulation on the conveyer belt, can reduce the content of moisture in the filth to a certain extent.

The belt conveyor 5 comprises a rack 501 and a conveying main body 502 arranged on the rack 501, the higher end of the rack 501 is fixedly connected with the water retaining dam body 1 through a stand column 9, a hinged structure is arranged between the upper end of the stand column 9 and the rack 501, an adjusting cylinder 10 is arranged between the side wall of the water retaining dam body 1 and the bottom of the rack 501, a cylinder seat of the adjusting cylinder 10 is hinged with the side wall of the water retaining dam body 1, and the end part of a piston rod of the adjusting cylinder 10 is hinged with the bottom of the rack 501 through hinged parts respectively, in the utility model, the adjusting cylinder 10 is an existing device, when in use, the inclination angle of the belt conveyor 5 can be adjusted through the adjusting cylinder 10, and the specific adjusting method is as follows: when the dirt in the river water is floating, the adjusting cylinder 10 can be opened to extend the piston rod of the adjusting cylinder to drive the belt conveyor 5 to rotate anticlockwise by taking the upper end of the upright post 9 as a central point, and then the height of the lower end of the belt conveyor 5 is increased due to the fixed height of the higher end of the belt conveyor 5, so that the dirt is ensured to be positioned below the water surface in the dirt collecting area 4; and when the filth in the river contains a large amount of suspended solids or sediments, if the height of the lower end of the belt conveyor 5 is too high, the suspended solids and the sediments cannot be removed, at this time, the adjusting cylinder 10 can be opened, the piston rod of the adjusting cylinder is shortened, and the agricultural belt conveyor 5 is driven to rotate clockwise by taking the upper end of the upright post 9 as a central point, so that the height of the lower end of the belt conveyor 5 is reduced, and the suspended solids and the sediments can be conveniently removed.

Gather and be provided with camera 11 on the 3 edges in river course of dirty district 4 one side, during the actual setting, camera 11's camera lens orientation gathers dirty district 4, monitors gathering the condition of gathering of 4 interior filths in the dirty district, when the filth gathers to a certain extent, can start belt conveyor 5 and clear away the filth.

The trash rack 2 comprises a plurality of telescopic rods 204 arranged at equal intervals, the lower end of each telescopic rod 204 is provided with a balancing weight 205, the upper ends of the telescopic rods 204 are provided with hollow floating bodies 206 of an integral structure, each telescopic rod 204 is sleeved with a flexible telescopic sleeve 207, the upper end of each flexible telescopic sleeve 207 is connected with the hollow floating body 206, the lower end of each flexible telescopic sleeve is connected with the balancing weight 205, a flexible net 208 is arranged between every two adjacent flexible telescopic sleeves 207, in the structure, the balancing weight 205 is used for increasing the weight, so that the trash rack 2 can sink to the bottom of a river channel 3, meanwhile, the trash rack 2 is ensured not to be washed away by river water, the hollow floating bodies 206 are used for forming buoyancy, the trash rack 2 is driven to be unfolded, an intercepting net is formed on the whole cross section of the river channel 3, and the telescopic rods 204, the flexible telescopic sleeves 207 and the flexible nets 208 are arranged in a matching manner, so that the whole trash rack 2 can freely lift in the height direction, the specific process is that when river water rises, the height of the hollow floating body 206 rises along with the buoyancy, the telescopic rod 204 and the flexible telescopic sleeve 207 are pulled to extend, the flexible net 208 is pulled upwards at the same time, the flexible net 208 is further unfolded, otherwise, when the river water level falls, the hollow floating body 206 falls along with the buoyancy, the telescopic rod 204 and the flexible telescopic sleeve 207 are contracted, the flexible net 208 is folded, in summary, the height of the whole trash rack 2 can rise and fall along with the driving of the hollow floating body 206 no matter the river water level, the height of the trash rack can automatically adapt to the height change of the water level, and the trash rack has a good trash blocking effect.

The top of the hollow floating body 206 is provided with a trash rack 209, when the water level of the river rises in the rain season and the water flow of the river is extremely turbulent, a part of the trash may cross the hollow floating body 206 under the impact of the water flow, and the trash rack 209 is provided to prevent the situation, so as to improve the trash blocking capability of the present invention and form a barrier to the trash crossing the hollow floating body 206.

A plurality of transverse supporting bars 210 are arranged between two adjacent flexible telescopic sleeves 207 at intervals up and down, and the supporting bars 210 can form a support between two adjacent telescopic rods 204 to improve the stability of the whole trash rack 2, and meanwhile, the flexible net 208 can be prevented from deforming or even being damaged by water flow impact, so that the service life of the flexible net 208 is prolonged.

In order to prevent trash rack 2 and empty, be provided with on the 3 edges in river course of 2 low reaches both sides of trash rack, prevent down riser 12, the side of cavity floater 206 is leaned on preventing down riser 12, trash rack 2 sets up in the river course 3 of 1 upper reaches of manger plate dam body, can receive the impact of rivers 3 internal water flows, when long-term use or meet rainwater season river rising, the impact force increase of rivers, at this moment trash rack 2 can be washed down by rivers, and prevent down riser 12's setting, can support trash rack 2, prevent that trash rack 2 from empting, in the time of actual setting, can insert the edge of river course 3 with the one side of preventing down riser 12, improve holding power and steadiness, the opposite side stretches into in river course 3, support trash rack 2.

Claims

1. A high-efficiency dirt removing system for a reservoir area of a hydropower station comprises a water retaining dam body (1) and a dirt blocking net (2) arranged at the upper stream of the water retaining dam body (1), the method is characterized in that: the trash rack (2) comprises an inclined trash guiding section (201), a horizontal section (202) and a vertical section (203) which are of an integrated structure, a trash gathering area (4) is formed among the horizontal section (202), the vertical section (203) and the edge of the river channel (3), a belt conveyor (5) is obliquely arranged between the sewage accumulation area (4) and the water retaining dam body (1), the higher end of the belt conveyor (5) is fixed on the water retaining dam body (1), the lower end of the belt conveyor extends into the sewage accumulation area (4), a plurality of pushing plates (6) are arranged on the conveying belt of the belt conveyor (5) at intervals, and a sewage storage tank (7) is arranged on the water retaining dam body (1) below the higher end of the belt conveyor (5).

2. The high-efficiency dirt removing system for the reservoir area of the hydropower station according to claim 1, wherein an included angle between the inclined dirt guiding section (201) and the water flow direction of the river channel (3) is 60-80 degrees.

3. The high-efficiency decontamination system for the reservoir area of the hydropower station according to claim 1, wherein skirt-type flanges (8) are arranged on two sides of a conveying belt in the belt conveyor (5).

4. The high-efficiency decontamination system for the reservoir area of the hydropower station according to claim 1, wherein a plurality of draining holes are formed on the conveying belt of the belt conveyor (5).

5. The high-efficiency cleaning system for the reservoir area of the hydropower station according to claim 1, wherein the belt conveyor (5) comprises a rack (501) and a conveying main body (502) arranged on the rack (501), the higher end of the rack (501) is fixedly connected with the water-retaining dam body (1) through an upright post (9), the upper end of the upright post (9) is hinged with the rack (501), an adjusting cylinder (10) is arranged between the side wall of the water-retaining dam body (1) and the bottom of the rack (501), and a cylinder seat of the adjusting cylinder (10) is hinged with the side wall of the water-retaining dam body (1) and the end of a piston rod of the adjusting cylinder (10) is hinged with the bottom of the rack (501) through hinges respectively.

6. The high-efficiency cleaning system for the reservoir area of the hydropower station according to claim 1, wherein a camera (11) is arranged on the edge of the river channel (3) at one side of the dirt gathering area (4).

7. The high-efficiency dirt removing system for the hydropower station reservoir area according to claim 1, wherein the dirt blocking net (2) comprises a plurality of telescopic rods (204) which are arranged at equal intervals, a balancing weight (205) is arranged at the lower end of each telescopic rod (204), a hollow floating body (206) which is of an integrated structure is arranged at the upper end of each telescopic rod (204), a flexible telescopic sleeve (207) is sleeved on each telescopic rod (204), the upper end of each flexible telescopic sleeve (207) is connected with the hollow floating body (206), the lower end of each flexible telescopic sleeve is connected with the balancing weight (205), and a flexible net (208) is arranged between every two adjacent flexible telescopic sleeves (207).

8. The high-efficiency decontamination system for the reservoir area of the hydropower station according to claim 7, wherein a trash rack (209) is arranged at the top of the hollow floating body (206).

9. The high-efficiency decontamination system for the reservoir area of the hydropower station according to claim 7, wherein a plurality of transverse supporting bars (210) are arranged between two adjacent flexible telescopic sleeves (207) at intervals up and down.

10. The high-efficiency cleaning system for the reservoir area of the hydropower station according to claim 7, wherein anti-falling risers (12) are arranged on the edges of the river channels (3) at two sides of the downstream of the trash rack (2), and the sides of the hollow floating bodies (206) are abutted against the anti-falling risers (12).