CN107354916A - A kind of hydroenergy storage station trash rack sewage cleaning device - Google Patents

Abstract

The invention provides a kind of hydroenergy storage station trash rack sewage cleaning device, including the rack take of trash rack influent side is arranged on, is arranged on dykes and dams and is used for the haulage gear for driving rack take to move up and down；Rack take includes the rake teeth portion in insertion trash rack；Haulage gear is connected with rack take both ends respectively including the support frame being arranged on dykes and dams, the traction electric machine being fixed on support frame, with the rotating shaft of traction electric machine output axis connection and two hoist cables for being wound on rotating shaft both ends, two hoist cable other ends；Dustbin is provided with dykes and dams above trash rack；Also include being used to drive the rotating mechanism above rack take rotary motion to trash rack.Structure design of the present invention is simple, not only can effectively clear up the dirt of trash rack, but also the dirt that can be cleared up in trash rack deep water.

Description

A pumped storage power station trash rack dirt cleaning device

technical field

The invention relates to the field of cleaning equipment for a pumped storage power station, in particular to a device for cleaning dirt from a trash rack of a pumped storage power station.

Background technique

In the upstream area of the pumped hydropower station, a lot of dirt such as branches, leaves, and garbage bags often float in the reservoir, so a trash rack is installed at the water inlet of the turbine to prevent the dirt from entering the turbine, so as not to cause

Head loss and damage to equipment. During the use of the trash rack, it bears a large amount of debris accumulation for a long time, which not only affects the use of the trash rack, but also causes the loss of water head, so it is necessary to clean the trash rack.

The existing cleaning method is mainly to use machinery to clean up the dirt. It mainly uses a cleaning machine to remove the dirt in the pool, but it needs manual assistance, which is time-consuming and cannot effectively clean up the dirt on the trash rack. Some reservoirs Manual cleaning will also be carried out, which not only causes the power station to stop working, but also cannot clean up deep-water sewage.

Contents of the invention

The technical problem to be solved by the present invention is the practical problem that the dirt on the trash rack of the pumped storage power station cannot be effectively cleaned, and a device for cleaning the trash rack of the pumped storage power station is provided. The structure design is simple, and it can not only effectively clean the trash It can not only remove the dirt from the trash rack, but also clean the dirt in the deep water of the trash rack.

The technical solution is as follows: a device for cleaning dirt on a trash rack of a pumped storage power station, comprising a cleaning rake arranged on the water inlet side of the trash rack, arranged on a dam and used to drive the cleaning rake to move up and down The traction mechanism; the cleaning rake includes rake teeth inserted into the trash rack; the traction mechanism includes a support frame arranged on the embankment, a traction motor fixed on the support frame, and the The rotating shaft connected to the output shaft of the traction motor and two slings wound around the two ends of the rotating shaft, the other ends of the two slings are respectively connected to the two ends of the cleaning rake;

A garbage bin is arranged on the embankment close to the top of the trash rack.

Both sides of the trash rack are provided with a vertical limit plate, and the limit plate is provided with a strip-shaped limit hole; the two ends of the cleaning rake are provided with a square shaft, and the square shaft is located on the bar. The width of the strip-shaped limiting hole is slightly larger than the width of the square rotating shaft.

The cleaning device also includes a rotating mechanism for driving the cleaning rake to rotate above the trash rack; the rotating mechanism includes two racks symmetrically arranged on both sides of the trash rack, the The end of the square rotating shaft passes through the bar-shaped limiting hole and is provided with a gear used in conjunction with the rack. The rack is close to the upper end of the trash rack and fixed on the limiting plate through a metal plate. the upper end, and the length of the rack is 1/6-1/4 of the circumference of the gear;

Located above the strip-shaped limiting hole, the limiting plate is provided with a strip-shaped reaming hole communicating with the strip-shaped limiting hole, and the width of the strip-shaped reaming hole is greater than the diagonal of the cross-section of the square shaft length.

The lower end surface of the strip-shaped reaming hole is equal in height to the lower end surface of the rack.

The cleaning rake includes a box with closed ends, an open upper end, and an inverted trapezoidal cross-section. The bottom surface and two inclined surfaces of the box are provided with drainage holes, and the inclined surface near the trash rack The upper end of the surface is provided with the rake teeth.

A dustbin is also arranged on the support frame on the same side of the cleaning rake, and the dustbin is arranged alternately with the cleaning rake; the dustbin includes a bottom plate, two end plates and two side plates, The two end plates are fixedly connected to the side plate on the side away from the trash rack to form a fixed part, and the bottom plate is fixedly connected to the side plate on the side close to the trash rack to form a movable part, The bottom plate is arranged on the lower part of the two end plates through the rotating shaft.

The lower end surface of the side plate of the fixing part extends horizontally inward to form a limiting baffle, and the end of the bottom plate is provided with a limiting abutting plate capable of abutting against the lower end surface of the limiting baffle.

The rotating shaft deviates from the central axis of the bottom plate and passes through the bottom plate near the end of the bottom plate.

An intermediate shaft is arranged between the cleaning rake and the square rotating shaft, one end of the intermediate shaft is fixedly connected to the cleaning rake, and the square rotating shaft and the intermediate shaft are axially fixedly connected by an inner shaft, so that The other end of the intermediate shaft is provided with a sector-shaped limit block, and the end of the square shaft away from the gear is provided with a sector-shaped limit groove, the angle of the sector-shaped limit groove is greater than the angle of the sector-shaped limit block, and the The sector-shaped limiting block is located in the sector-shaped limiting groove.

Beneficial effects of the present invention: it can effectively clean up the dirt on the trash rack of the pumped storage power station. The structure is simple in design, easy to install and disassemble, and easy to operate. It can not only effectively clean the dirt on the trash rack, but also sink into the bottom of the water To clean up the dirt in the deep water of the trash rack, the invention also provides a movable garbage box, which can realize the function of instant cleaning.

Description of drawings

Fig. 1 is a schematic diagram of the structure of an embodiment of the present invention.

Fig. 2 is a left view of the structure of the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a dustbin in an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the trash rack in the embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a cleaning rake in an embodiment of the present invention.

Fig. 6 is a partial enlarged view of the square shaft in the embodiment of the present invention.

Fig. 7 is a partial enlarged view of the intermediate shaft in the embodiment of the present invention.

Wherein, the reference signs are: 1, support frame; 2, dustbin; 2-1, movable part; 2-2, fixed part; 2-3, rotating shaft; 3, cleaning rake; 3-1, tooth rake part ;4, sling; 5, limit plate; 6, fixed pulley; 7, rotating shaft; 8, trash rack; 9, traction motor; 10, support plate; 11, gear; 12, rack; 13, intermediate shaft ; 13-1, fan-shaped limit block; 14, square rotating shaft; 14-1, inner shaft.

detailed description

In order to illustrate the technical features of the solution more clearly, the solution will be described below through specific implementation modes.

Referring to Fig. 1 and Fig. 2, a pumped-storage power station trash rack dirt cleaning device includes a trash rake 3 arranged on the water inlet side of the trash rack, arranged on a dam and used to drive the trash rake 3 The traction mechanism that moves up and down; the cleaning rake 3 includes a rake tooth part 3-1 inserted into the trash rack 8; the traction mechanism includes a support frame 1 arranged on the embankment, a traction motor 9 fixed on the support plate 10, and a traction The rotating shaft 7 connected to the output shaft of the motor 9 and two slings 4 wound around the two ends of the rotating shaft 7, the other ends of the two slings 4 pass through the fixed pulley 6 arranged on the support plate 10 to connect with the two ends of the cleaning rake 3 ;

Referring to FIG. 3 , a garbage bin 2 is arranged on the embankment near the top of the trash rack 8 , and the garbage bin 2 is fixedly connected to the supporting frame 1 fixed on the embankment. This structure can not only clean up the dirt from the bottom to the top of the trash rack 8 as a whole, but also can clean up the dirt in the reservoir beside the trash rack 8 in time.

A vertical limit plate 5 is arranged on both sides of the trash rack 8, and the limit plate 5 is provided with a bar-shaped limit hole; the two ends of the cleaning rake 3 are provided with a square rotating shaft 14, and the square rotating shaft 14 is located in the bar-shaped limit pass. In the hole, the width of the strip-shaped limiting hole is slightly larger than the width of the square rotating shaft 14. The effect of the limiting plate can ensure that the cleaning rake 3 can rise vertically without any deflection.

Referring to Fig. 1 and Fig. 2, the cleaning device also includes a rotary mechanism for driving the cleaning rake 3 to rotate above the trash rack 8; the rotary mechanism includes two racks 12 symmetrically arranged on both sides of the trash rack 8 1. The end of the square rotating shaft passes through the bar-shaped limiting hole and is provided with a gear 12 used in conjunction with the rack 12. The rack 12 is close to the upper end of the trash rack 8 and is fixed on the upper end of the limiting plate 5 by a metal plate, and the tooth The length of bar 12 is 1/6-1/4 of the circumference of gear 11;

The limit plate 5 above the bar-shaped limit hole is provided with a bar-shaped reaming hole connected to the bar-shaped limit hole. The width of the bar-shaped reaming hole is greater than the length of the diagonal of the cross-section of the square shaft. The effect of rotating mechanism is when cleaning rake 3 height is higher than dustbin 2 heights, impels cleaning rake 3 to rotate toward dustbin 2 tops, makes the dirt in the cleaning rake 3 be poured in the dustbin 2 automatically.

The height of the lower end surface of the bar type reaming is equal to the height of the lower end surface of the rack.

Referring to Fig. 4 and Fig. 5, the cleaning rake 3 includes a box body with closed ends, an open upper end and an inverted trapezoidal cross-section. The bottom surface and two inclined surfaces of the box body are provided with drainage holes, and the side near the trash rack is inclined. A rake tooth part 3-1 is arranged on the top of the surface. The function of the drainage hole is to leak the moisture in the dirt and reduce the weight of the cleaning rake.

On the support frame 1 on the same side as the cleaning rake 3, there is also a dustbin 2, which is interlaced with the cleaning rake 3; the dustbin 2 includes a bottom plate, two end plates and two side plates, and the two end The plate and the side plate on one side away from the trash rack are fixedly connected to form a fixed part 2-2, and the bottom plate is fixedly connected to the side plate near the trash rack 8 side to form a movable part 2-1. The lower part of the end plate.

The lower end surface of the side plate of the fixing part 2-2 extends horizontally inward to form a limiting baffle, and the end of the bottom plate is provided with a limiting abutting plate capable of abutting against the lower end surface of the limiting baffle.

The staggered arrangement of garbage bins 2 and cleaning rakes 3 is to ensure that when the cleaning rakes 3 rotate toward the top of the garbage bin 2, the dirt can fall into the garbage bin 2 to prevent the dirt from entering the reservoir. The dustbin 2 design movable part 2-1 and fixed part 2-2, make cleaning rake 3 rise from the bottom and when contacting with dustbin 2, can withstand dustbin 2 movable parts and continue to rise.

The rotating shaft deviates from the central axis of the bottom plate and passes through the bottom plate near the end of the bottom plate.

Referring to Fig. 6 and Fig. 7, an intermediate shaft 13 is arranged between the cleaning rake 3 and the square rotating shaft 14, and one end of the intermediate shaft 13 is fixedly connected with the cleaning rake 3, and the square rotating shaft 14 and the intermediate shaft 13 pass through an inner shaft 14-1 To the fixed connection, the other end of the intermediate shaft 13 is provided with a sector-shaped limit block 13-1, and the end of the square shaft 14 away from the gear is provided with a sector-shaped limit groove, the angle of the sector-shaped limit groove is greater than the angle of the sector-shaped limit block, and the sector-shaped limit The bit block 13-1 is located in the fan-shaped limiting groove. The design of this structure is to ensure that when the cleaning rake 3 finishes emptying the garbage and makes a downward movement, when it contacts the upper end surface of the dustbin 2, the support force of the dustbin 2 to the cleaning rake 3 will make the cleaning rake 3 rotate, and then drive The sector-shaped limiting block 13-1 rotates in the sector-shaped limiting groove, so that the cleaning rake 3 can smoothly return to the bottom of the trash rack 8 under the action of gravity.

The use process of the present invention is as follows: the cleaning rake 3 is located at the bottom of the trash rack 8, and the traction motor is a forward and reverse motor. After the motor is started, it drives the sling 4 to move upward, and the sling 4 drives the cleaning rake 3 to move upward, and the trash is stopped. The dirt in the accessory reservoir near the gate 8 enters the cleaning rake 3, and when the cleaning rake 3 leaves the water surface, excess water is discharged from the drain holes in the cleaning rake 3; the cleaning rake 3 continues to move upwards, and the cleaning The rake tooth part 3-1 of the dirt rake 3 scrapes off the dirt on the grid, and the dirt all enters the dirt cleaning rake 3; The rotating shaft 2-3 of the part 2-1 and the fixed part 2-2 rotates. When the height of the upper surface of the cleaning rake 3 is higher than the height of the upper surface of the dustbin, the gear 11 meshes with the rack 12, and the cleaning rake 3 faces the dustbin 2 Rotate above, when the cleaning rake 3 rotates at a certain angle, the dirt in the cleaning rake 3 enters the dustbin 2, and the traction motor 9 also stops working; then change the rotation direction of the traction motor 9, the sling 4 descends, and the cleaning rake 3 falls back under the action of gravity, and when the cleaning rake 3 is in contact with the upper edge of the dustbin 2, the support force of the dustbin 2 to the cleaning rake 3 promotes the rotation of the cleaning rake 3, and then drives the fan-shaped limit block in the fan-shaped limit concave. Rotating in the tank, the cleaning rake 3 rotates at a certain angle against the garbage bin 2 and continues to fall. Afterwards, the cleaning rake 3 enters below the water surface under the action of gravity, returns to the bottom of the trash rack 8, and the traction motor 9 stops working. The trip is over.

The invention can effectively clean up the dirt on the trash rack of the pumped storage power station. The structure is simple in design, easy to install and disassemble, and easy to operate. The limit structure makes the cleaning rake return to the bottom of the trash rack smoothly, not only can effectively clean the dirt on the trash rack, but also can sink into the bottom of the water to clean the dirt in the deep water of the trash rack.

The undescribed technical features of the present invention can be realized by or using the prior art, and will not be repeated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Those of ordinary skill in the art Changes, modifications, additions or substitutions made within the essential scope of the present invention shall also belong to the protection scope of the present invention.

Claims (9)

1. a kind of hydroenergy storage station trash rack sewage cleaning device, it is characterised in that including being arranged on the trash rack water inlet The rack take of side, it is arranged on dykes and dams and is used for the haulage gear for driving the rack take to move up and down；The rack take includes The rake teeth portion inserted in the trash rack；Support frame that the haulage gear includes being arranged on the dykes and dams, be fixed on it is described Traction electric machine on support frame, with the rotating shaft of traction electric machine output axis connection and two it is wound on hanging for the rotating shaft both ends Rope, two hoist cable other ends are connected with the rack take both ends respectively；

Above the trash rack dustbin is provided with the dykes and dams.

2. hydroenergy storage station trash rack sewage cleaning device according to claim 1, it is characterised in that the trash rack Both sides are provided with a vertical limiting plate, and the limiting plate offers bar shaped spacing hole；The rack take side of being provided at both ends with Shape rotating shaft, the square rotating shaft are located in the bar shaped limiting through hole, and the width of the stripe shape spacing hole is slightly larger than described square The width of rotating shaft.

3. according to the trash rack sewage cleaning device described in claim any one of 1-2, it is characterised in that also include being used to drive Rotating mechanism above the rack take rotary motion to the trash rack；The rotating mechanism is symmetricly set on institute including two State the rack of trash rack both sides, the square roller end is provided with through the stripe shape spacing hole and is used cooperatively with the rack Gear, the rack is fixed on the upper end of the limiting plate, and institute close to the upper end of the trash rack and by a metallic plate The length for stating rack is the 1/6-1/4 of circumference of gear length；

The stripe shape reaming connected with the stripe shape spacing hole, institute are provided with the limiting plate above the stripe shape spacing hole The width for stating stripe shape reaming is more than the length of the square rotating shaft cross section diagonal.

4. according to the trash rack sewage cleaning device described in claim any one of 1-3, it is characterised in that the stripe shape reaming Lower surface is equal with the height of the rack lower surface.

5. according to the trash rack sewage cleaning device described in claim any one of 1-4, it is characterised in that the rack take includes Closed at both ends, open upper end and cross section are the box body of inverted trapezoidal, and the bottom surface of the box body and two inclined planes are provided with row Water hole, inclined plane upper end described in the trash rack side is provided with the rake teeth portion.

6. according to the trash rack sewage cleaning device described in claim any one of 1-5, it is characterised in that positioned at the rack take Dustbin is additionally provided with homonymy support frame as described above, the dustbin is staggered with the rack take；The dustbin includes Bottom plate, two end panels and two side plates, two end panels and the side plate away from the trash rack side are fixed and connected Composition fixed part is connect, the bottom plate is fixedly connected with composition movable part, the bottom with the side plate close to the trash rack side Plate is arranged on two end panel bottoms by rotating shaft.

7. according to the trash rack sewage cleaning device described in claim any one of 1-6, it is characterised in that the side of the fixed part Plate lower surface level extends inwardly to form postive stop baffle, and the bottom end, which is provided with, can be against the postive stop baffle lower surface Spacing follow block.

8. according to the trash rack sewage cleaning device described in claim any one of 1-7, it is characterised in that the rotating shaft deviates institute State base plate center axis and pass through the bottom plate close to the bottom end.

9. according to the trash rack sewage cleaning device described in claim any one of 1-8, it is characterised in that the rack take and institute State and be provided with jackshaft between square rotating shaft, described jackshaft one end is fixedly connected with the rack take, the square rotating shaft and The jackshaft is fixedly connected by an internal axle axial, and the jackshaft other end is provided with fan-shaped limited block, described square turn Axle is provided with fan-shaped limited impression away from described gear one end, and the angle of the fan-shaped limited impression is more than the fan-shaped limited block Angle, the fan-shaped limited block is located in the fan-shaped limited impression.