Hydropower station water intake trash holding device

Abstract

The utility model discloses a trash holding device for a water intake of a hydropower station, which belongs to the technical field of hydropower stations and comprises a main cable made of a steel wire rope, a trash holding net body is arranged on the lower surface of the main cable, the axis of the trash holding net body is arc-shaped, and the trash holding net body is composed of a stainless steel net. According to the trash holding net, the trash holding net body is arranged, at the moment, the trash holding net body on the main mooring rope can be submerged into water, and at the moment, one side of the trash holding net body can be stretched towards the water bottom direction under the action of the balance weight chains and the balance weights below the trash holding net body; meanwhile, the main mooring rope can suspend in water through a plurality of buoys connected through connecting ropes on the main mooring rope, so that the trash holding net body carries out trash holding in water, after the trash holding net is installed, the cleaning frequency of the trash rack at the water intake of the dam is greatly reduced, and the distance between the trash holding net and the water intake is reasonably increased; the situation that scum enters a trash holding area due to the fact that the sand flushing gate is opened can be effectively reduced, and the dam water environment can be treated easily.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydropower station especially relates to a hydropower station water intake trash holding device. BACKGROUND

[0002] Hydropower stations convert the energy of water flow into mechanical energy, and then convert it into electrical energy by generators. This type of power station is an important form of renewable energy because they rely on the water cycle of nature, which is a continuous process driven by the sun. The trash holding equipment commonly used in hydropower stations includes an inlet dredge machine and an inlet trash rack.

[0003] Because the dam does not have a trash screen system, the amount of upstream water increases during the flood season, and a large amount of household garbage and branches flow to the front of the dam. When the unit is running, the flow rate at the inlet is extremely high, forming a vortex in front of the inlet. The upstream floating debris rapidly accumulates in front of the inlet trash rack, causing the rack difference to rise rapidly, affecting the safe and stable operation of the unit. Therefore, a hydropower station water intake trash holding device is proposed. SUMMARY

[0004] The utility model discloses a hydropower station water intake trash holding device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hydropower station water intake trash holding device, comprising a main cable, the material of the main cable is steel wire rope, the lower surface of the main cable is provided with a trash screen body, the axis of the trash screen body is arranged in an arc shape, and the trash screen body is composed of a stainless steel mesh;

[0006] The upper surface of the main cable is fixedly installed with a connecting rope, one end of the connecting rope is fixedly installed with a buoy, and the material of the buoy is super strong polytetrafluoroethylene PE rotational molding material.

[0007] Further description of the above technical scheme:

[0008] The lower surface of the trash screen body is fixedly installed with a counterweight chain.

[0009] Further description of the above technical scheme:

[0010] One end of the counterweight chain is fixedly installed with a counterweight, and the two ends of the main cable are fixedly installed with a link.

[0011] Further description of the above technical scheme:

[0012] The outer wall of the link is fixedly installed with a fixed plate, and the upper surface of the fixed plate is fixedly installed with a telescopic spring.

[0013] Further description of the above technical scheme:

[0014] One end of the telescopic spring is fixedly installed with a fixed ring, and the inner wall of the fixed ring is fixedly installed with a positioning rod.

[0015] As a further description of the above technical solution:

[0016] One end of the positioning rod extends to the upper surface outside the fixed ring and is fixedly installed with a push piece, and the other end of the positioning rod penetrates the inside of the telescopic spring and extends to the lower surface outside the fixed plate.

[0017] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0018] 1、In the utility model, through setting up the trash screen body, the trash screen body on the main cable will sink into the water, under the action of the several counterweight chains and the counterbalance weight under the trash screen body, one side of the trash screen body will be stretched to the direction of the water bottom, and the several buoys connected by the connecting ropes on the main cable will suspend the main cable in the water, which helps to spread the trash screen body in the water, so that the trash screen body can block the trash in the water, after installing the trash screen, the cleaning frequency of the trash screen grate at the water intake of the joint complement dam is greatly reduced, the distance between the trash screen and the water intake is reasonably increased, the floating sludge entering the trash blocking area due to the opening of the sand flushing lock can be effectively reduced, and the water environment of the dam can be managed.

[0019] 2、In the utility model, the positioning rod is arranged, and then the push piece is loosened, under the support of the fixed plate, the telescopic spring on the fixed plate is driven to move by the elastic force, the fixed ring can pull the positioning rod into the fixed plate, the spring helps to quickly disassemble in the later period, and then the one end of the main cable is fixed on the steel pipe through the positioning rod, which helps to keep the main cable stable in the water, the other end of the main cable is fixed on the steel pipe of another anchoring point according to the same steps, which helps to conveniently untie and connect the trash blocking and discharging, improves the working efficiency in the later period, facilitates the maintenance in the later period, and prolongs the service life of the trash screen. ACCURACY

[0020] Fig. 1 It is a three-dimensional structure schematic view of a water intake trash blocking device of a hydropower station.

[0021] Fig. 2 It is a three-dimensional exploded structure schematic view of a fixed plate and a positioning rod in a water intake trash blocking device of a hydropower station.

[0022] LEGEND:

[0023] 1, main cable; 2, trash screen body; 3, counterweight chain; 4, counterbalance weight; 5, connecting rope; 6, buoy; 7, buckle; 8, fixed plate; 9, positioning rod; 10, telescopic spring; 11, fixed ring; 12, push piece. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Please refer to Figs. 1-2 The utility model provides a kind of technical solutions: a water intake of hydropower station is stopped pollution device, including main cable 1, the material of main cable 1 is steel wire rope, the lower surface of main cable 1 is provided with stopped pollution net body 2, the axis of stopped pollution net body 2 is arranged as arc, stopped pollution net body 2 is made of stainless steel net;

[0026] The upper surface of main cable 1 is fixedly installed with connecting rope 5, one end of connecting rope 5 is fixedly installed with buoy 6, the material of buoy 6 is superstrong polytetrafluoroethylene PE rotomoulding material, the lower surface of stopped pollution net body 2 is fixedly installed with counterweight chain 3, one end of counterweight chain 3 is fixedly installed with equalizing weight 4, the both ends of main cable 1 are fixedly installed with joint 7.

[0027] Its specific implementation is: stopped pollution net body 2 on main cable 1 will sink into water at this time, help to keep stopped pollution net body 2 stable, stopped pollution net body 2 is stretched to the direction of water bottom under the action of several counterweight chains 3 and equalizing weights 4 under stopped pollution net body 2 at this time, while several buoys 6 connected on main cable 1 through connecting rope 5 will suspend main cable 1 in water, help to make stopped pollution net body 2 unfold in water, so that stopped pollution net body 2 carries out stopping pollution in water.

[0028] The outer wall of joint 7 is fixedly installed with fixed plate 8, the upper surface of fixed plate 8 is fixedly installed with telescopic spring 10, one end of telescopic spring 10 is fixedly installed with fixed ring 11, the inner wall of fixed ring 11 is fixedly installed with positioning rod 9, one end of positioning rod 9 extends to the upper surface outside of fixed ring 11 and is fixedly installed with paddle 12, the other end of positioning rod 9 is penetrated in the inside of telescopic spring 10 and extends to the lower surface outside of fixed plate 8.

[0029] Its specific implementation is: first excavate fixed pit on bedrock, drill the insertion hole of steel pipe at the bottom of the pit, insert steel bar and steel pipe after filling chemical anchor in the hole, finally use concrete to pour, use steel wire rope to connect two elevation supports as the guide rope of floating right bank up and down, then aim the link 7 of one end of main cable 1 to the steel pipe on one anchor point, at this time pull the paddle 12 to one side, the paddle 12 will pull the positioning rod 9 out of the fixed plate 8, the positioning rod 9 will stretch the extension spring 10 through the fixed ring 11, at this time insert the link 7 into the steel pipe, then release the paddle 12, at this time the extension spring 10 on the fixed plate 8 moves the fixed ring 11 under the support of the fixed plate 8, the fixed ring 11 will pull the positioning rod 9 into the fixed plate 8, the spring helps to disassemble quickly in later period, then fix one end of the main cable 1 on the steel pipe through the positioning rod 9, which helps the main cable 1 to keep stable in water, at this time fix the other end of the main cable 1 on the steel pipe of another anchor point according to the same steps.

[0030] Working principle: first excavate fixed pit on bedrock, drill the insertion hole of steel pipe at the bottom of the pit, insert steel bar and steel pipe after filling chemical anchor in the hole, finally use concrete to pour, use steel wire rope to connect two elevation supports as the guide rope of floating right bank up and down, then aim the link 7 of one end of main cable 1 to the steel pipe on one anchor point, at this time pull the paddle 12 to one side, the paddle 12 will pull the positioning rod 9 out of the fixed plate 8, the positioning rod 9 will stretch the extension spring 10 through the fixed ring 11, at this time insert the link 7 into the steel pipe, then release the paddle 12, at this time the extension spring 10 on the fixed plate 8 moves the fixed ring 11 under the support of the fixed plate 8, the fixed ring 11 will pull the positioning rod 9 into the fixed plate 8, then fix one end of the main cable 1 on the steel pipe through the positioning rod 9, at this time fix the other end of the main cable 1 on the steel pipe of another anchor point according to the same steps, at this time the trash screen body 2 on the main cable 1 will sink into water, at this time under the action of several counterweight chains 3 and counterweight 4 under the trash screen body 2, one side of the trash screen body 2 will be stretched to the direction of water bottom, at the same time several floating buoys 6 connected through connecting rope 5 on the main cable 1 will suspend the main cable 1 in water, so that the trash screen body 2 carries out trash collection in water.

[0031] The above merely describes the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A trash rack for a water intake of a hydroelectric power plant, characterized in that: Including main cable (1), the material of main cable (1) is wire rope, the lower surface of main cable (1) is provided with trash screen body (2), the axis of trash screen body (2) is set as arc, trash screen body (2) is composed of stainless steel screen; The upper surface of main cable (1) is fixedly installed with connecting rope (5), one end of connecting rope (5) is fixedly installed with buoy (6), the material of buoy (6) is super strong polytetrafluoroethylene PE rotomolding material.

2. The trash rack of claim 1, wherein, The lower surface of trash screen body (2) is fixedly installed with counterweight chain (3).

3. The trash rack of claim 2, wherein, One end of counterweight chain (3) is fixedly installed with equalizing weight (4), both ends of main cable (1) are fixedly installed with joint buckle (7).

4. The trash rack of claim 3, wherein the plurality of bars are arranged in a plurality of rows, and the plurality of bars in each row are arranged in a plurality of columns. The outer wall of joint buckle (7) is fixedly installed with fixed plate (8), the upper surface of fixed plate (8) is fixedly installed with telescopic spring (10).

5. A trash rack for a water intake of a hydroelectric power plant according to claim 4, characterized in that One end of telescopic spring (10) is fixedly installed with fixed ring (11), the inner wall of fixed ring (11) is fixedly installed with positioning rod (9).

6. A trash rack for a water intake of a hydroelectric power plant according to claim 5, characterized in that One end of positioning rod (9) extends to the upper surface outside of fixed ring (11) and is fixedly installed with push piece (12), the other end of positioning rod (9) penetrates the inside of telescopic spring (10) and extends to the lower surface outside of fixed plate (8).

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