CN203834445U - Hydropower station water surface floating object collecting structure - Google Patents

Abstract

The utility model discloses a structure for collecting floating objects on the water surface of a hydropower station, which comprises a hydraulic cylinder, a jacking rod and two supporting columns arranged in parallel. The hydraulic cylinder is installed on the breast wall above the water inlet. The output end of the cylinder is connected to the support column, and there are guide rail grooves on the opposite sides of the two support columns, and also includes a fence body, on which a fixed upper rake claw is installed, and hinged at the bottom of the fence body. For the lower claw, guide rollers are installed at both ends of the fence body, and the fence body is slid and set in the groove of the guide rail through the guide roller. pulley. The setting of the jacking rod greatly improves the cleaning range of the collection structure, and the floating objects can be processed in advance in the return area, preventing the missing floating objects from flowing into the riverbed-type water inlet, and avoiding impact damage to the door slot in the water-retaining building. damage.

Description

Hydropower Station Water Surface Floating Object Collection Structure

technical field

The utility model relates to a sewage cleaning structure of a hydropower station, in particular to a structure for collecting floating objects on the water surface of the hydropower station.

Background technique

In reservoirs or rivers with a lot of sewage, in order to ensure the safe and normal operation of hydropower stations or pumping stations, it is often necessary to install sewage cleaning equipment so that the sewage can be cleaned without shutting down or emptying the reservoir. At present, small hydropower stations generally rely on manual cleaning. Most low-head and high-flow power stations, due to untimely cleaning, make the water pressure difference between the front and rear of the trash rack greatly exceed the design standard. Shutdown during the flood season for cleaning and safe operation of the trash rack It becomes a problem during power generation in flood season; while large-scale hydropower stations use bucket cleaning machines or rotary cleaning machines, and bucket cleaning machines can be fixed, mobile or monorail suspension according to the layout. , the opening and closing of the bucket of the small fixed bucket cleaning machine can be manually operated, and the form of the bucket can be bucket-shaped or tooth-shaped according to the different dirt. The bucket-shaped bucket is suitable for floating rods such as branches and large-scale For garbage cleaning, the toothed rake bucket is suitable for cleaning softer dirt such as aquatic plants. In order to prevent the sideways movement of the bucket, the design of the bucket should have guide wheels, and the water blocking area of the bucket should be as small as possible; The sewage machine is mainly suitable for small branches, aquatic plants, etc., where the volume is small and the number is large. The toothed rakes are fixed on the chain, and a toothed rake is fixed at a certain distance. The gap between the side and the grid bar is generally about 3mm. When the rake reaches the top, it is pressed and cleaned by a movable scraper or a round brush.

Most of the two types of cleaning machines are fixed in front of the water inlet of the riverbed hydropower station to facilitate the cleaning of floating objects on the water surface; but near the riverbed water inlet, the two types of cleaning machines are unable to salvage the floating objects And, especially when the gate is opened, the water flow speed at the water inlet of the riverbed hydropower station is accelerated, which makes the efficiency of the cleaning machine low when salvaging, and the floating objects on the water surface will quickly flow into the riverbed water inlet with the water flow, forming floating objects to block The impact of the door slot of the water building will cause damage to the main body of the water retaining building.

Utility model content

The purpose of this utility model is to provide a structure for collecting floating objects on the water surface of a hydropower station, so that the cleaning equipment can quickly salvage and collect the floating objects near the water inlet, reduce the impact of floating objects on the water-retaining buildings of the hydropower station, and at the same time improve the cleaning range of the cleaning equipment .

The purpose of this utility model is achieved through the following technical solutions:

The structure for collecting floating objects on the water surface of a hydropower station includes a hydraulic cylinder, a jacking rod and two supporting columns arranged in parallel. The hydraulic cylinder is installed on the breast wall above the water inlet. The support columns are connected, and guide rail grooves are opened on the opposite sides of the two support columns, and a fence body is also included. A fixed upper claw is installed on the fence body, and a lower claw is hingedly connected at the bottom of the fence body. The two ends of the body are equipped with guide rollers, and the fence body is slidably arranged in the groove of the guide rail through the guide rollers. Two support blocks are installed on the lower rake claws, and a pulley is rotated between the two support blocks. When the utility model works, it can collect floating objects in a large range near the river bed type water inlet. The upper claw and the lower claw form a ring-shaped clamping space, and the clamping space can be adjusted and installed on the lower claw by manually using a steel rope. The rollers on the claws are used to realize opening and closing, so as to carry out a large-scale cleaning and collection process of floating objects, and reduce the impact of floating on water-retaining buildings when the gate is opened; start the hydraulic cylinder, and the jacking rod drives the support under the push of the output end of the hydraulic cylinder The column moves forward to expand the cleaning range of the utility model. The fence body moves up and down quickly in the groove of the guide rail under the traction of the traction rope. Manually adjust the steel rope connected with the pulley to make the lower claws open, and the fence body The body moves down into the water, the upper claws block the floating objects to prevent them from moving further, the steel rope is released, the lower claws automatically move down under the action of their own gravity, and cooperate with the upper claws to hold the floating objects, and finally Under the traction of the traction rope, the fence body is raised as a whole, and the collected floating objects are concentrated and accumulated in a fixed processing place. The setting of the jacking rod greatly improves the cleaning range of the collection structure, and the floating objects can be processed in advance in the return area. Prevents missed float from flowing into riverbed intakes and avoids impact damage to door slots in water-retaining structures.

The upper rake claw is provided with a detour part whose bending direction is opposite to that of the lower rake claw, and the detour part is located below the fence body. The detour on the upper claws can increase the internal area of the annular clamping space formed by the upper claws and the lower claws. When the upper claws go deep into the water, the floating objects will be blocked to prevent them from continuing to move. The lower claws are under the action of their own gravity. The floating object is clamped down, and while preventing the floating object from falling off each time it is grabbed, it can also greatly increase the number of grabs and improve the collection efficiency.

A counterweight is installed at the end of the lower claw. When the number of grabs is large or the volume of the floating object itself is large, and the gravity of the lower claw is not enough to hold the floating object stably, the counterweight set at the end of the lower claw can indirectly increase the impact The clamping strength of the floating objects, and the hinged connection between the lower rake claws and the fence body, can ensure the grabbing efficiency each time under the action of manual adjustment of the steel rope, and at the same time prevent the captured floating objects from falling suddenly when the fence body rises.

The guide rollers are rail rollers. The rollers of the guide rail can move up and down stably in the groove of the guide rail, and there will be no obvious frustration on the fence body due to insufficient traction or sudden loss of traction, effectively avoiding the falling of the clamped floating objects.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. The structure for collecting floating objects on the water surface of the hydropower station of this utility model, the fence body can move up and down quickly in the groove of the guide rail under the traction of the traction rope. Move to the water, the upper claws will block the floating objects to prevent them from moving further, loosen the steel rope, the lower claws will automatically move down under the action of their own gravity, and cooperate with the upper claws to clamp the floating objects Under the traction of the fence body, the whole body of the fence rises, and the collected floating objects are concentrated and accumulated in a fixed processing place. The setting of the jack rod greatly improves the cleaning range of the collection structure, and the floating objects can be processed in advance in the return area to prevent leakage. The fallen floats flow into the riverbed water inlet to avoid impact damage to the door slot in the water-retaining building;

2. The structure for collecting floating objects on the water surface of the hydropower station of this utility model blocks the floating objects after the upper claws go deep into the water surface to prevent them from continuing to move, and the lower claws clamp the floating objects under the action of their own gravity to prevent While the floating objects fall off, it can also greatly increase the number of grabs and improve the collection efficiency;

3. In the structure for collecting floating objects on the water surface of the hydropower station of this utility model, the counterweight set at the end of the lower claw can indirectly increase the clamping force of the lower claw on the floating objects, and the lower claw is hingedly connected with the fence body. Under the action of the rope, the grabbing efficiency can be guaranteed each time, and at the same time, the captured floating objects can be prevented from falling suddenly when the fence body rises.

Description of drawings

The drawings described here are used to provide a further understanding of the embodiments of the utility model, constitute a part of the application, and do not constitute a limitation to the embodiments of the utility model. In the attached picture:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a side view of the utility model;

Marks and corresponding component names in the attached drawings:

1-support column, 2-rail groove, 3-fence body, 4-upper claw, 5-lower claw, 6-guide roller, 7-support block, 8-pulley, 9-breast wall, 10-hydraulic cylinder , 11-jacking rod, 12-detour part, 13-counterweight.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the examples and accompanying drawings. The schematic implementation of the utility model and its description are only used to explain the utility model Novelty, not as a limitation to the utility model.

Example 1

As shown in Figures 1 and 2, the structure for collecting floating objects on the water surface of the hydropower station of the present invention includes a hydraulic cylinder 10, a jacking rod 11 and two supporting columns 1 arranged in parallel, and the hydraulic cylinder 10 is installed on the breast wall above the water inlet 9, the two ends of the jacking rod 11 are respectively connected with the output end of the hydraulic cylinder 10 and the support column 1, and there are guide rail grooves 2 on the opposite sides of the two support columns 1, and also include a fence body 3. A fixed upper claw 4 is installed on the fence body 3, and a lower claw 5 is hingedly connected to the bottom of the fence body 3. Guide rollers 6 are installed at both ends of the fence body 3, and the fence body 3 is slid to be set on the guide rail concave by the guide roller 6. In the groove 2, two supporting blocks 7 are installed on the lower claw 5, and a pulley 8 is arranged to rotate between the two supporting blocks 7. When the utility model is working, it can collect floating objects in a large range near the river bed type water inlet. The upper claw 4 and the lower claw 5 form a ring-shaped clamping space, which can be adjusted and installed manually by using a steel rope. The roller 6 on the lower rake claw 5 realizes the opening and closing, so as to carry out a large-scale cleaning and collection process for the floating objects, and reduce the impact of floating on the water-retaining building when the gate is opened; start the hydraulic cylinder 10, and the jacking rod 11 is in the hydraulic cylinder. 10 The output end drives the support column 1 to move forward to expand the cleaning range of the present utility model. The fence body 3 moves up and down quickly in the guide rail groove 2 under the traction of the traction rope, and is manually connected to the pulley 8 through adjustment. The steel rope makes the lower rake claw 5 open, the fence body 3 moves down into the water, the upper rake claw 4 blocks the floating objects to prevent it from continuing to move, loosen the steel rope, and the lower rake claw 5 automatically moves down under the action of its own gravity , cooperate with the upper rake claw 4 to clamp the floating objects, and finally the fence body 3 is raised as a whole under the traction of the traction rope, and the collected floating objects are concentrated and accumulated in a fixed processing place. The setting of the jacking rod 11 greatly improves the The cleaning range of the collection structure is improved, and the floating objects can be processed in advance in the return area, preventing the missing floating objects from flowing into the river bed type water inlet, and avoiding damage to the door slot in the water retaining building.

Example 2

As shown in FIG. 2 , this embodiment is based on Embodiment 1. The upper claw 4 is provided with a detour 12 whose bending direction is opposite to that of the lower claw 5 , and the detour 12 is located below the fence body 3 . The detour 12 on the upper claw 4 can increase the inner area of the annular clamping space formed by the upper claw 4 and the lower claw 5. When the upper claw 4 penetrates into the water surface, the floating object will be blocked to prevent it from continuing to move. The claw 5 clamps the floating objects under the action of its own gravity, and while preventing the floating objects from falling off each time it is grabbed, it can also greatly increase the number of grabs and improve the collection efficiency.

Example 3

As shown in FIG. 1 , this embodiment is based on Embodiment 1, and a counterweight 13 is installed at the end of the lower claw 5 . When the number of grabs is large or the volume of the floating object itself is large, and the gravity effect of the lower claw 5 itself is not enough to hold the floating object stably, the counterweight 13 arranged at the end of the lower claw 5 can indirectly increase the weight of the lower claw 5. The clamping strength of the rake claws 5 on the floating objects, and the lower rake claws 5 are hingedly connected with the fence body 3. Under the action of manual adjustment of the steel rope, the grabbing efficiency can be ensured each time, and at the same time, the captured floating objects can be prevented from falling on the fence body 3. Falling suddenly while rising.

Further, preferably, the guide rollers 6 are rail rollers. The guide rail rollers 6 can move up and down stably in the guide rail groove 2, and the fence body 3 will not experience obvious frustration due to insufficient traction force or sudden disappearance of the traction force, effectively avoiding the clamped floating objects from falling.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. Within the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (4)

1. A structure for collecting floating objects on the water surface of a hydropower station, including a hydraulic cylinder (10), a jacking rod (11) and two parallel support columns (1), characterized in that the hydraulic cylinder (10) is installed above the water inlet On the breast wall (9), the two ends of the jacking rod (11) are respectively connected with the output end of the hydraulic cylinder (10) and the support column (1), and there are holes on the opposite sides of the two support columns (1). The guide rail groove (2) also includes a fence body (3), on which a fixed upper claw (4) is installed, and a lower claw (5) is hingedly connected to the bottom of the fence body (3), The two ends of the fence body (3) are installed with guide rollers (6), and the fence body (3) is slidably set in the guide rail groove (2) through the guide rollers (6), and the lower rake claws (5) are installed with There are two support blocks (7), and a pulley (8) is arranged to rotate between the two support blocks (7). 2. The structure for collecting floating objects on the water surface of a hydropower station according to claim 1, characterized in that: the upper claw (4) is provided with a detour (12) whose bending direction is opposite to that of the lower claw (5), and the detour is The part (12) is located below the fence body (3). 3. The structure for collecting floating objects on the water surface of a hydropower station according to claim 1, characterized in that: a counterweight (13) is installed at the end of the lower claw (5). 4. The structure for collecting floating objects on the water surface of a hydropower station according to any one of claims 1-3, characterized in that: the guide rollers (6) are rail rollers.