CN219080232U

CN219080232U - Safety control device for tail water gate of hydropower station

Info

Publication number: CN219080232U
Application number: CN202223273785.9U
Authority: CN
Inventors: 施天德
Original assignee: Wenshan Panlong River Basin Hydropower Development Co ltd
Current assignee: Wenshan Panlong River Basin Hydropower Development Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-26
Anticipated expiration: 2032-12-07

Abstract

The utility model provides a safety control device for a tail water gate of a hydropower station. The safety control device of the hydropower station tail water gate comprises two dam bodies; the gate body is arranged between the two dam bodies; the supporting frames are fixedly arranged at the tops of the two dam bodies; the lifting ropes are fixedly arranged on the gate body; the winding box is fixedly arranged on the supporting frame and connected with the plurality of lifting ropes; the two connecting chains are fixedly arranged on the gate body and are connected with the winding box. The safety control device for the tail water gate of the hydropower station has the advantages of being capable of carrying out double safety protection on the tail water gate so as to cope with emergency events such as sudden falling of the gate.

Description

Safety control device for tail water gate of hydropower station

Technical Field

The utility model relates to the technical field of tail gates, in particular to a safety control device for a hydropower station tail gate.

Background

The main function of the tail water gate of the hydropower station is to prevent the water level of river water from exceeding the water level of tail water due to sudden flood or other reasons, so that the tail water flows backward to the factory building to cause a factory building accident when the tail water level rises.

The existing tail sluice adopts a hanging gate, and because the tail sluice has low utilization rate, the strength of a hanging rope for hanging the gate can be reduced in the windblown insolation, so that the gate suddenly drops to generate a safety accident when the gate is pulled.

Therefore, it is necessary to provide a new safety control device for a tail gate of a hydropower station to solve the above technical problems.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the safety control device for the tail water gate of the hydropower station, which can perform double safety protection on the tail water gate so as to cope with emergency such as sudden falling of the gate.

In order to solve the technical problems, the safety control device for the tail water gate of the hydropower station provided by the utility model comprises: two dam bodies; the gate body is arranged between the two dam bodies; the supporting frames are fixedly arranged at the tops of the two dam bodies; the lifting ropes are fixedly arranged on the gate body; the winding box is fixedly arranged on the supporting frame and connected with the plurality of lifting ropes; the two connecting chains are fixedly arranged on the gate body and are connected with the winding box.

Preferably, the support frame is fixedly provided with a plurality of pulleys, the pulleys are respectively contacted with the lifting ropes, the support frame is rotatably provided with two support shafts, and the two support shafts are respectively contacted with the two connecting chains.

Preferably, the first inner bin and the second inner bin are arranged in the supporting shaft, the movable rod is movably arranged in the first inner bin, the clamping rod and the connecting rope are fixedly arranged on the movable rod, the connecting rope extends into the second inner bin, the piston is movably arranged in the second inner bin, and the piston is fixedly connected with one side, away from the movable rod, of the connecting rope.

Preferably, a plurality of clamping grooves are formed in the supporting frame, a plurality of openings are formed in the first inner bin, a plurality of springs are fixedly mounted on the piston, the springs are fixedly connected with the inner wall of the second inner bin, and a limiting cylinder is fixedly sleeved outside the springs.

Preferably, both sides of the movable rod are fixedly provided with sliding plates, a plurality of balls are embedded on both sliding plates, and the balls are contacted with the inner wall of the first inner bin.

Preferably, two fixing edges are fixedly arranged on two sides of the gate body, a limiting rod and a plurality of rollers are fixedly arranged on the two fixing edges, and the rollers are respectively abutted to the fixing frames on the two dam bodies.

Compared with the related art, the safety control device for the hydropower station tail water gate has the following beneficial effects:

the utility model provides a safety control device for a tail water gate of a hydropower station, which comprises:

1. the gate body can be opened or closed by winding or paying out the lifting ropes and the connecting chains through the winding box, when any one of the lifting ropes is broken, the other lifting ropes and the connecting chains are prevented from suddenly increasing in tension beyond the bearing threshold value of machinery in the winding box due to sudden falling of the gate body, the gate body is prevented from directly falling down due to the fact that the pulley and the supporting shaft can adjust the moving direction of the lifting ropes and the connecting chains, the gate body is ensured to be opened due to the upward tension, and the reduction of service life due to the fact that the lifting ropes and the connecting chains are greatly worn is prevented;

2. the centrifugal force generated when the supporting shaft rotates faster can enable the moving rod to move in the first inner bin, so that the clamping rod extends out of the first inner bin, the supporting shaft is clamped, the gate body is prevented from continuously falling and directly falling, the clamping rod is pulled back to the first inner bin when the supporting shaft returns to the normal rotating speed through the spring matched piston, the gate body can be ensured to move up and down normally through the plurality of rollers, the gate body is prevented from being impacted by the water flow body to enable the gate body to shake continuously, and the stability of the gate body is reduced.

Drawings

FIG. 1 is a schematic diagram of a front cross-sectional structure of a preferred embodiment of a hydropower station tail gate safety control device provided by the utility model;

FIG. 2 is a schematic diagram of a front cross-sectional structure of a support shaft and a support frame according to the present utility model;

fig. 3 is a schematic side view of the connecting chain and the supporting shaft in the present utility model.

Reference numerals in the drawings: 1. a dam body; 2. a gate body; 3. a support frame; 4. a hanging rope; 5. a winding box; 6. a support shaft; 7. a connecting chain; 8. a moving rod; 9. a clamping rod; 10. a connecting rope; 11. a piston; 12. a spring; 13. a limiting cylinder; 14. a fixed edge; 15. a roller; 16. and a limit rod.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic front sectional view of a preferred embodiment of a safety control device for a tail gate of a hydropower station according to the present utility model; FIG. 2 is a schematic diagram of a front cross-sectional structure of a support shaft and a support frame according to the present utility model;

fig. 3 is a schematic side view of the connecting chain and the supporting shaft in the present utility model. The safety control device of the tail water gate of the hydropower station comprises: two dams 1; the gate body 2 is arranged between the two dam bodies 1; the supporting frames 3 are fixedly arranged at the tops of the two dam bodies 1; a plurality of lifting ropes 4, wherein the lifting ropes 4 are fixedly arranged on the gate body 2; the winding box 5 is fixedly arranged on the supporting frame 3 and is connected with a plurality of lifting ropes 4; the two connecting chains 7, two the connecting chains 7 are all fixedly mounted on the gate body 2 and are all connected with the winding box 5, the gate body 2 can be opened or closed by winding or paying out the lifting ropes 4 through the winding box 5 and the connecting chains 7, and the gate body 2 can be prevented from being directly dropped due to the fact that other lifting ropes 4 and the connecting chains 7 are suddenly increased by tensile force to exceed the bearing threshold value of the machinery in the winding box 5 when any one of the two connecting chains 7 breaks due to the fact that the plurality of lifting ropes 4 are matched with the two connecting chains 7.

The lifting rope type gate is characterized in that a plurality of pulleys are fixedly mounted on the supporting frame 3, the pulleys are respectively contacted with the lifting ropes 4, two supporting shafts 6 are rotatably mounted on the supporting frame 3, the two supporting shafts 6 are respectively contacted with the two connecting chains 7, the moving direction of the lifting ropes 4 and the connecting chains 7 can be adjusted through the pulleys and the supporting shafts 6, the gate body 2 is guaranteed to be opened under the action of upward pulling force, and the lifting ropes 4 and the connecting chains 7 are prevented from being greatly worn so that the service life is shortened.

The utility model discloses a gate, including back shaft 6, movable mounting, gate body 2, back shaft 6, movable mounting has set up in the back shaft 6 in first interior storehouse and second interior storehouse, movable mounting has movable rod 8 in the first interior storehouse, fixed mounting has draw-in bar 9 and connecting rope 10 on the movable rod 8, connecting rope 10 extends to in the second interior storehouse, movable mounting has piston 11 in the second interior storehouse, piston 11 with connecting rope 10 is kept away from one side fixed connection of movable rod 8, centrifugal force that produces when rotating faster through back shaft 6 can make movable rod 8 in first interior storehouse remove and make draw-in bar 9 stretch out first interior storehouse to block back shaft 6, prevent gate body 2 and continue to descend and directly drop.

Be provided with a plurality of draw-in grooves on the support frame 3, a plurality of openings have been seted up on the first interior storehouse, fixed mounting has a plurality of springs 12 on the piston 11, a plurality of spring 12 all with the inner wall fixed connection in the second interior storehouse, a plurality of the outer all fixed cover of spring 12 is equipped with spacing section of thick bamboo 13, can draw back clamping lever 9 in first interior storehouse when back to normal rotational speed through spring 12 cooperation piston 11.

The both sides of movable rod 8 are all fixed mounting has the slide, two all inlay on the slide has a plurality of balls, and is a plurality of the ball all with the inner wall in the first interior storehouse contacts, can make movable rod 8 more smooth and easy in the interior storehouse of first through a plurality of balls.

Two sides of the gate body 2 are fixedly provided with two fixing edges 14, two fixing edges 14 are fixedly provided with a limiting rod 16 and a plurality of rollers 15, the rollers 15 are respectively abutted against the two fixing frames on the dam body 1, and the gate body 2 can be ensured to move up and down normally through the rollers 15 and simultaneously is prevented from being impacted by the water flow body to enable the gate body 2 to shake continuously, so that the stability of the gate body 2 is reduced.

The working principle of the safety control device for the tail water gate of the hydropower station provided by the utility model is as follows:

when the mechanical winding device is used, the machinery in the winding box 5 is started, the lifting rope 4 and the connecting chain 7 are mechanically wound in the winding box 5, so that the gate body 2 is started, when one lifting rope 4 is broken, if the machinery in the winding box 5 is not damaged by suddenly increased tension, the gate body 2 needs to be slowly put down, if the machinery in the winding box 5 is damaged by suddenly increased tension, the gate body 2 is directly lowered, the supporting shaft 6 is driven to rotate rapidly, the centrifugal force generated by the faster rotating speed is larger, the clamping rod 9 is separated from the first inner bin to be clamped into the clamping groove, the supporting shaft 6 cannot rotate normally, and the gate body 2 which is stopped is prevented from dangerous accidents.

the utility model provides a safety control device for a tail water gate of a hydropower station, which can open or close a gate body 2 by winding or paying out a lifting rope 4 and a connecting chain 7 through a winding box 5, can prevent other lifting ropes 4 and connecting chains 7 from suddenly falling down to cause that the other lifting ropes 4 and the connecting chains 7 are suddenly increased in tension beyond a bearing threshold value of machinery in the winding box 5 when any one of the two lifting ropes is broken through the matching of a plurality of lifting ropes 4 and the two connecting chains 7, can lead the gate body 2 to directly fall down, can adjust the moving directions of the lifting ropes 4 and the connecting chains 7 through pulleys and a supporting shaft 6, can ensure that the gate body 2 is opened under the action of upward tension, can prevent the lifting ropes 4 and the connecting chains 7 from being greatly worn, can lead the service life to be shortened through the centrifugal force generated when the supporting shaft 6 rotates fast, can enable a moving rod 8 to move in a first inner bin, so as to enable a clamping rod 9 to stretch out of the first inner bin, thus clamp the supporting shaft 6, can prevent the gate body 2 from continuously falling down to directly, can pull the clamping rod 9 back to the first inner bin through a spring 12 to cooperate with a piston 11 when the supporting shaft 6 returns to a normal rotating speed, can ensure that the moving direction of the lifting rope 4 and can not normally stop the gate body 2 due to the movement of the gate body 2 due to the fact that the lifting body can not normally and can be prevented from being stopped due to the shaking.

The device structure and the drawings of the present utility model mainly describe the principle of the present utility model, and in terms of the technology of the design principle, the arrangement of the power mechanism, the power supply system, the control system, etc. of the device is not completely described, but the specific details of the power mechanism, the power supply system, and the control system thereof can be clearly known on the premise that those skilled in the art understand the principle of the present utility model.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A hydroelectric power station tail gate safety control device, comprising:

two dam bodies;

the gate body is arranged between the two dam bodies;

the supporting frames are fixedly arranged at the tops of the two dam bodies;

the lifting ropes are fixedly arranged on the gate body;

the winding box is fixedly arranged on the supporting frame and connected with the plurality of lifting ropes;

the two connecting chains are fixedly arranged on the gate body and are connected with the winding box.

2. The safety control device for the tail water gate of the hydropower station according to claim 1, wherein a plurality of pulleys are fixedly arranged on the supporting frame, the pulleys are respectively contacted with a plurality of lifting ropes, two supporting shafts are rotatably arranged on the supporting frame, and the two supporting shafts are respectively contacted with two connecting chains.

3. The safety control device for the tail water gate of the hydropower station according to claim 2, wherein a first inner bin and a second inner bin are arranged in the supporting shaft, a movable rod is movably arranged in the first inner bin, a clamping rod and a connecting rope are fixedly arranged on the movable rod, the connecting rope extends into the second inner bin, a piston is movably arranged in the second inner bin, and the piston is fixedly connected with one side, far away from the movable rod, of the connecting rope.

4. The safety control device for the tail water gate of the hydropower station according to claim 3, wherein a plurality of clamping grooves are formed in the supporting frame, a plurality of openings are formed in the first inner bin, a plurality of springs are fixedly mounted on the piston, the springs are fixedly connected with the inner wall of the second inner bin, and limiting cylinders are fixedly sleeved outside the springs.

5. The safety control device for the tail water gate of the hydropower station according to claim 3, wherein sliding plates are fixedly arranged on two sides of the movable rod, a plurality of balls are embedded on two sliding plates, and the balls are contacted with the inner wall of the first inner bin.

6. The safety control device for the tail water gate of the hydropower station according to claim 1, wherein two fixing edges are fixedly arranged on two sides of the gate body, a limiting rod and a plurality of rollers are fixedly arranged on the two fixing edges, and the plurality of rollers are respectively abutted against the fixing frames on the two dam bodies.