Hydropower station water inlet trash holding device

Abstract

The invention provides a hydropower station water inlet trash holding device, and relates to the technical field of water conservancy projects. Comprising a trash holding body, the trash holding body is in a plate shape, a plurality of through holes are machined in the trash holding body, the edges of the through holes are rotationally connected with opening and closing plates through shaft pins, the edges of the sides, away from the shaft pins, of the through holes are fixedly connected with one ends of springs, and the other ends of the springs are fixedly connected with the opening and closing plates; the spring is used for enabling the opening and closing plate to be opened relative to the trash holding main body; the middle of the trash holding main body protrudes towards the upstream of water flow so that the water flow at the trash holding main body can be divided towards the two sides of the trash holding main body, the shaft pin is installed at the edge, close to the most protruding portion of the trash holding main body, of the through hole, and trash storage bays are arranged on the two sides of the trash holding main body. Dirt is gathered in the dirt storage bay under the action of water flow and the opening and closing plate. The invention provides a hydropower station water inlet trash holding device which can be used for holding trash and is easy to clean.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to a sewage intercepting device for a water inlet of a hydropower station. Background Art

[0002] A pollution interception device needs to be installed at the water inlet of the hydropower station to intercept branches, leaves, solid garbage and other dirt in the water flow.

[0003] In the related art, trash is intercepted by installing a trash rack at the water inlet of a hydropower station. However, the trash rack needs to be monitored and cleaned regularly, which is difficult to clean. Therefore, in view of the above shortcomings, there is an urgent need for a trash interception device for intercepting and easily cleaning the water inlet of a hydropower station. Summary of the invention

[0004] The embodiment of the present invention provides a device for intercepting pollution at the water inlet of a hydropower station, which can provide a device for intercepting pollution at the water inlet of a hydropower station and making it easy to clean. The technical solution of the present invention is as follows: A sewage interception device for a water inlet of a hydropower station, comprising: The dirt-blocking body is plate-shaped and has a plurality of through holes. The edges of the through holes are rotatably connected to an opening and closing plate via an axle pin. The edge of the through hole away from the axle pin is fixedly connected to one end of a spring. The other end of the spring is fixedly connected to the opening and closing plate. The spring is used to open the opening and closing plate relative to the dirt-blocking body. The middle part of the pollution-blocking body protrudes upstream of the water flow to divert the water flow at the pollution-blocking body to both sides thereof. The axle pin is installed at the edge of the through hole close to the most protruding part of the pollution-blocking body. Pollution storage bays are arranged on both sides of the pollution-blocking body. Pollution is gathered in the pollution storage bays under the action of the water flow and the opening and closing plates.

[0005] Optionally, a filter is installed between the edge of the opening and closing plate and the edge of the through hole.

[0006] Optionally, the sewage storage bay is U-shaped, with its opening facing the middle of the river, and the side of the opening of the sewage storage bay close to the downstream is connected to one side of the sewage blocking body, and a sewage storage door is installed on the side of the opening of the sewage storage bay close to the upstream through a one-way hinge and a torsion spring. The one-way hinge enables the sewage storage door to open in one direction toward the inside of the sewage storage bay, and the torsion spring is used to give the sewage storage door an elastic force for closing after it is opened.

[0007] Optionally, along the protruding portion in the middle of the dirt-blocking body toward both sides, the elastic coefficients of the springs on the plurality of through holes gradually decrease.

[0008] Optionally, the most protruding part of the pollution-blocking body divides the pollution-blocking body into two parts, and the horizontal cross-section of each part is bent toward the downstream of the river.

[0009] Optionally, the radius of curvature of each part of the pollution-blocking body gradually decreases toward the pollution-storage bay.

[0010] Optionally, the size of the opening and closing plate matches the size of the through hole.

[0011] Optionally, the sizes of the multiple through holes of the pollution-blocking body gradually decrease with the depth of the river water in which they are located.

[0012] Optionally, an overflow collection basket is installed on the upper part of the pollution blocking body, and the overflow collection basket includes a frame and a basket net, the basket net is installed on the frame, and the frame is installed on the upper edge of the pollution blocking body.

[0013] Optionally, the pollution-blocking body is equipped with a lifting device, which is used to lift the pollution-blocking body according to the water level of the river. The pollution-blocking body is slidably connected to one end of the opening of the pollution-storage bay, and a groove is installed at one end of the opening of the pollution-storage bay. The pollution-blocking body is processed with convex plates on both sides, and the convex plates are inserted into the grooves. The lifting device pulls the pollution-blocking body up and down along the direction of the groove through the cooperation of a motor and a cable.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: By setting a plurality of through holes on the pollution blocking body, rotating and connecting the opening and closing plates on the through holes, and setting the opening and closing plates and the edges of the through holes to be connected by springs, when the water flow impacts the opening and closing plates on the pollution blocking body, the springs will be compressed to move the opening and closing plates toward the through holes. Since the water flow has certain volatility and under the influence of inertia, after the springs are compressed to a certain extent, they will stretch to move the opening and closing plates away from the through holes. Finally, the opening and closing plates will present a continuous opening and closing vibration state under the continuous impact of the water flow. In addition, by setting the middle part of the pollution blocking body to protrude upstream of the water flow, the pollution blocking body has the function of controlling the diversion of river water, thereby making the water flow flow to both sides along the pollution blocking body. The dirt on the water flow cannot pass through the through holes, but moves to both sides of the pollution blocking body under the drive of the water flow. In this way, the opening and closing plates that are constantly opened and closed and vibrated will prevent the dirt from getting stuck on the through holes, but will move smoothly to the dirt storage bays on both sides of the pollution blocking body for storage and collection. After a certain amount of dirt is stored in the dirt storage bays, it can be cleaned in time. Therefore, the technical solution provided by the present invention can prevent dirt from being stuck on the dirt-blocking body, and can gather the dirt into the dirt storage bays on both sides of the dirt-blocking body, making it easier to clean the dirt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a sewage interception device for a water inlet of a hydropower station provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the main structure of a pollution-blocking body provided by an embodiment of the present invention; Figure 3 It is a partial structural schematic diagram of a pollution-blocking body provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the side structure of a pollution-blocking body provided by an embodiment of the present invention.

[0017] In the figure: 1- Pollution interception body; 2-Through hole; 3-Opening and closing panels; 4- Spring; 5-Sewage storage bay; 6-Filter; 7-sewage storage door; 8-Frame; 9- Brooklyn Nets; 10-groove; 11- Raised plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] like Figures 1 to 4 As shown, an embodiment of the present invention provides a sewage interception device for a water inlet of a hydropower station, comprising: The dirt-blocking body 1 is plate-shaped and has a plurality of through holes 2. The edge of the through hole 2 is rotatably connected to an opening and closing plate 3 through an axle pin. The edge of the through hole 2 away from the axle pin is fixedly connected to one end of a spring 4. The other end of the spring 4 is fixedly connected to the opening and closing plate 3. The spring 4 is used to open the opening and closing plate 3 relative to the dirt-blocking body 1. The middle part of the pollution-blocking body 1 protrudes upstream of the water flow to divert the water flow at the pollution-blocking body 1 to both sides thereof. The axle pin is installed at the edge of the through hole 2 close to the most protruding part of the pollution-blocking body 1. Waste storage bays 5 are arranged on both sides of the pollution-blocking body 1. Waste is gathered in the waste storage bays 5 under the action of the water flow and the opening and closing plate 3.

[0020] In this embodiment, a plurality of through holes 2 are provided on the pollution-blocking body 1, and an opening and closing plate 3 is rotatably connected to the through hole 2. The opening and closing plate 3 and the edge of the through hole 2 are connected by a spring 4. In this arrangement, when the water flow impacts the opening and closing plate 3 on the pollution-blocking body 1, the spring 4 will be compressed to move the opening and closing plate 3 toward the through hole 2. Since the water flow has a certain volatility and under the influence of inertia, after the spring 4 is compressed to a certain extent, it will stretch to move the opening and closing plate 3 away from the through hole 2. Finally, the opening and closing plate 3 presents a continuous opening and closing vibration state under the continuous impact of the water flow. The middle part of the pollution-blocking body 1 protrudes upstream of the water flow, so that the pollution-blocking body 1 has the function of controlling the diversion of river water, so that the water flow flows to both sides along the pollution-blocking body 1. The dirt on the water flow cannot pass through the through hole 2, and moves to both sides of the pollution-blocking body 1 driven by the water flow. The opening and closing plates 3 that are constantly opened and closed and vibrated prevent the dirt from getting stuck on the through hole 2, but move smoothly to the sewage storage bays 5 on both sides of the pollution-blocking body 1 for storage and collection. After a certain amount of dirt is stored in the sewage storage bays 5, it can be cleaned up in time. The technical solution provided by the embodiment of the present invention can prevent dirt from getting stuck on the pollution-blocking body 1, and can gather the dirt into the sewage storage bays 5 on both sides of the pollution-blocking body 1, so as to facilitate the cleaning of the dirt. In addition, the entire pollution-blocking process does not use electricity, and has the characteristics of low cost and safety.

[0021] In some embodiments of the present invention, a filter screen 6 is installed between the edge of the opening and closing plate 3 and the edge of the through hole 2 .

[0022] In this embodiment, the filter screen 6 can filter some smaller dirt, such as leaves, etc. In addition, the filter screen 6 can also prevent dirt from getting stuck between the through hole 2 and the opening and closing plate 3. When the opening and closing plate 3 is fully opened, the filter screen 6 is fully unfolded, so that there is no large gap between the through hole 2 and the opening and closing plate 3, so that there is no condition for dirt to get stuck.

[0023] In some embodiments of the present invention, the sewage storage bay 5 is U-shaped, and the opening of the sewage storage bay 5 faces the middle of the river. The side of the opening of the sewage storage bay 5 close to the downstream is connected to the side of the sewage blocking body 1, and the side of the opening of the sewage storage bay 5 close to the upstream is equipped with a sewage storage door 7 through a one-way hinge and a torsion spring. The one-way hinge enables the sewage storage door 7 to open in one direction toward the inside of the sewage storage bay 5, and the torsion spring is used to give the sewage storage door 7 an elastic force for closing after it is opened.

[0024] In this embodiment, a one-way-openable dirt storage door 7 is installed in the dirt storage bay 5 to prevent the dirt stored in the dirt storage bay 5 from escaping from the dirt storage bay 5. The torsion spring can provide elastic force to keep the dirt storage door 7 closed, and the dirt accumulates outside the dirt storage door 7. When the dirt accumulates to a certain extent, the dirt will overcome the elastic force to push the dirt storage door 7 open and finally enter the dirt storage bay 5. After the dirt slides into the dirt storage bay 5 along the dirt storage door 7, the dirt storage door 7 that loses pressure will close again, leaving the dirt in the dirt storage bay 5. The one-way-opening dirt storage door 7 allows the dirt to only enter the dirt storage bay 5, and the dirt in the dirt storage bay 5 cannot flow out from the inside.

[0025] It should be noted that the elastic coefficient of the torsion spring needs to be moderate, otherwise the dirt cannot push open the dirt storage door 7, and the dirt storage bay 5 cannot achieve the function of storing dirt.

[0026] In some embodiments of the present invention, the elastic coefficients of the springs 4 on the plurality of through holes 2 gradually decrease from the protruding portion in the middle of the dirt-blocking body 1 to both sides.

[0027] In this embodiment, when water flows along the dirt-blocking body 1 toward both sides thereof, the flow rate will gradually decrease due to the existence of resistance, and the elastic force required to be provided by the spring 4 will also become smaller. If the elastic coefficient of the spring 4 on the through holes 2 on both sides of the dirt-blocking body 1 is larger, the water flow will not be able to provide a large impulse to make it vibrate. Therefore, it is necessary to adaptively reduce the elastic coefficient of the spring 4.

[0028] In some embodiments of the present invention, the most protruding part of the pollution-blocking body 1 divides the pollution-blocking body 1 into two parts, and the horizontal cross-section of each part is bent toward the downstream of the river. In this way, the longitudinal flow of water can be smoothly changed to a lateral flow, and then flow into the sewage storage bay 5.

[0029] In some embodiments of the present invention, the radius of curvature of each part of the pollution-trapping body 1 gradually decreases toward the pollution-storage bay 5 .

[0030] In this embodiment, the radius of curvature gradually decreases toward the sewage storage bay 5, that is, the degree of curvature gradually increases. The closer to the two sides of the sewage blocking body 1, the slower the speed of the water flow, and the slower the speed of the water flow, the easier it is to change its flow direction smoothly, so a larger degree of curvature can be set here.

[0031] It should be noted that if the water flow rate is high and the curvature is also high, the water flow will be more dispersed after the water flow impact, and the diversion effect will be greatly reduced. Therefore, when the water flow just contacts the most protruding part of the pollution-blocking body 1, its flow rate is fast. In order to ensure the diversion effect, the radius of curvature near the most protruding part of the pollution-blocking body 1 is large, that is, the curvature is small; in the process of the water flow flowing along the pollution-blocking body 1, its flow rate gradually slows down. Therefore, the radius of curvature near the sewage storage bay 5 is small, that is, the curvature is large, which can significantly change the direction of the water flow and divert it to the sewage storage bay 5.

[0032] In some embodiments of the present invention, the size of the opening and closing plate 3 matches the size of the through hole 2 .

[0033] In some embodiments of the present invention, the sizes of the multiple through holes 2 of the pollution-blocking body 1 gradually decrease with the depth of the river water in which they are located.

[0034] In this embodiment, as the water depth increases, its flow rate decreases, and the ability of the water flow to carry solid waste also decreases. That is to say, the deeper the water is, the smaller the size of the waste it carries. Therefore, the size of the through hole 2 is gradually reduced.

[0035] Please refer to Figure 2 and Figure 4 In some embodiments of the present invention, an overflow collection basket is installed on the upper part of the pollution-blocking body 1. The overflow collection basket includes a frame 8 and a basket net 9. The basket net 9 is installed on the frame 8, and the frame 8 is installed on the upper edge of the pollution-blocking body 1.

[0036] In this embodiment, when the water flow is too large and the water flow rate is too fast, due to the dirt blocking effect of the dirt blocking body 1, a small amount of water may overflow the dirt blocking body 1. The small amount of water overflowing the dirt blocking body 1 may carry lighter and smaller dirt such as leaves. Therefore, an overflow collection basket is provided on the upper part of the dirt blocking body 1 to filter lighter and smaller dirt such as leaves.

[0037] In some embodiments of the present invention, the pollution-blocking body 1 is equipped with a lifting device, which is used to lift the pollution-blocking body 1 according to the water level of the river. The pollution-blocking body 1 is slidably connected to one end of the opening of the pollution-storage bay 5, and a groove 10 is installed at one end of the opening of the pollution-storage bay 5. Both sides of the pollution-blocking body 1 are processed with convex plates 11, which are inserted into the groove 10. The lifting device pulls the pollution-blocking body 1 up and down along the direction of the groove 10 through the cooperation of a motor and a cable.

[0038] In this embodiment, there will be a certain difference in water level between the rainy season and the dry season. Therefore, a lifting device with a motor and a cable is provided. The motor rotates to retract and release the cable, and the cable pulls or releases the pollution-blocking body 1. Since the convex plate 11 on the pollution-blocking body 1 is inserted into the groove 10 on the pollution-storage bay 5, the groove 10 limits the moving path of the pollution-blocking body 1, and finally the pollution-blocking body 1 can be lifted and lowered along the groove 10.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sewage interception device for a water inlet of a hydropower station, characterized in that: include: A dirt-blocking body (1), the dirt-blocking body (1) is plate-shaped and has a plurality of through holes (2) formed thereon, the edges of the through holes (2) being rotatably connected to an opening and closing plate (3) via an axle pin, the edge of the through hole (2) away from the axle pin being fixedly connected to one end of a spring (4), the other end of the spring (4) being fixedly connected to the opening and closing plate (3), the spring (4) being used to open the opening and closing plate (3) relative to the dirt-blocking body (1); The middle part of the dirt-blocking body (1) protrudes toward the upstream of the water flow so as to divert the water flow at the dirt-blocking body (1) to both sides thereof. The axle pin is installed at the edge of the through hole (2) close to the most protruding part of the dirt-blocking body (1). The dirt-blocking body (1) is provided with dirt-storage bays (5) on both sides. The dirt is gathered in the dirt-storage bays (5) under the action of the water flow and the opening and closing plate (3).

2. A sewage interception device for a water inlet of a hydropower station according to claim 1, characterized in that: A filter screen (6) is installed between the edge of the opening and closing plate (3) and the edge of the through hole (2).

3. A sewage interception device for a water inlet of a hydropower station according to claim 1, characterized in that: The sewage storage bay (5) is U-shaped, the opening of the sewage storage bay (5) faces the middle of the river, the side of the opening of the sewage storage bay (5) close to the downstream is connected to the side of the sewage blocking body (1), and the side of the opening of the sewage storage bay (5) close to the upstream is equipped with a sewage storage door (7) via a one-way hinge and a torsion spring, the one-way hinge enables the sewage storage door (7) to open in one direction toward the inside of the sewage storage bay (5), and the torsion spring is used to give the sewage storage door (7) an elastic force for closing after it is opened.

4. A sewage interception device for a water inlet of a hydropower station according to claim 1, characterized in that: Along the protruding portion in the middle of the dirt-blocking body (1) towards the two sides, the elastic coefficients of the springs (4) on the plurality of through holes (2) gradually decrease.

5. A sewage interception device for a water inlet of a hydropower station according to claim 1, characterized in that: The most protruding part of the pollution-blocking body (1) divides the pollution-blocking body (1) into two parts, and the horizontal cross-section of each part is bent toward the downstream of the river.

6. A sewage interception device for a water inlet of a hydropower station according to claim 5, characterized in that: The radius of curvature of each part of the waste-blocking body (1) gradually decreases in the direction toward the waste-storage bay (5).

7. A sewage interception device for a water inlet of a hydropower station according to claim 1, characterized in that: The size of the opening and closing plate (3) matches the size of the through hole (2).

8. A sewage interception device for a water inlet of a hydropower station according to claim 1, characterized in that: The sizes of the multiple through holes (2) of the pollution-blocking body (1) gradually decrease with the depth of the river water in which they are located.

9. A sewage interception device for a water inlet of a hydropower station according to claim 1, characterized in that: An overflow collection basket is installed on the upper part of the pollution-blocking body (1), and the overflow collection basket comprises a frame (8) and a basket net (9). The basket net (9) is installed on the frame (8), and the frame (8) is installed on the upper edge of the pollution-blocking body (1).

10. A sewage interception device for a water inlet of a hydropower station according to claim 3, characterized in that: The pollution blocking body (1) is provided with a lifting device, and the lifting device is used to lift the pollution blocking body (1) according to the water level of the river. The pollution blocking body (1) is slidably connected to one end of the opening of the pollution storage bay (5), and a groove (10) is provided at one end of the opening of the pollution storage bay (5). Both sides of the pollution blocking body (1) are machined with convex plates (11), and the convex plates (11) are inserted into the grooves (10). The lifting device pulls the pollution blocking body (1) to lift and lower in the direction of the grooves (10) through the cooperation of a motor and a cable.

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