Hydropower station filtering structure

Abstract

This invention discloses a filtration structure for a hydropower station, belonging to the field of hydropower station technology. The filtration structure includes a first mounting base and a second mounting base, with a rotating cylinder rotatably mounted inside both bases. Both ends of the rotating cylinder are fixed with flanges. The rotating cylinder is equipped with a retrieval mechanism for continuously cleaning floating debris. A discharge mechanism is located on one side of the retrieval mechanism to collect and discharge the retrieved debris. This invention, through the retrieval mechanism, achieves continuous and uninterrupted retrieval of floating debris, and the debris disposal process can be completed without stopping, greatly shortening the work cycle, increasing the amount of debris cleaned per unit time, significantly improving work efficiency, and quickly and effectively improving the water quality environment. It also reduces labor input and maintenance costs, resulting in significant economic advantages in long-term operation.

Description

Technical Field

[0001] This invention belongs to the field of hydropower station technology, specifically relating to a filtration structure for hydropower stations. Background Technology

[0002] A hydropower station consists of a hydraulic system, a mechanical system, and an electrical power generation device. It is a water conservancy project that realizes the conversion of water energy into electrical energy. Hydropower generation is an important component of my country's power engineering. Due to the characteristics of clean, efficient, and stable and sufficient energy supply, hydropower projects have received increasing attention, leading to the development of a large number of hydropower stations. There are usually residential areas upstream of hydropower stations. Although dumping garbage into the river is currently prohibited, a certain amount of floating garbage will still accumulate in front of the hydropower station as the water flows downstream. In order to prevent floating garbage from entering the hydropower station and affecting the power generation process, it is necessary to clean up the garbage in front of the hydropower station.

[0003] In the current hydropower industry, when it is necessary to clean up floating garbage in rivers or reservoirs, traditional methods such as dredging boats or small manned boats with nets are usually used. The garbage must be unloaded after the net is full before the next dredging operation can be carried out. Because the dredging must be interrupted to carry out the unloading task, it is impossible to carry out garbage collection work continuously and stably. This is not conducive to quickly and effectively controlling and reducing the amount of floating garbage in the river. Moreover, whether operating large dredging boats or small manned boats, the staff need to be in the water working environment for a long time and frequently perform heavy physical labor such as loading and unloading garbage, which easily leads to fatigue.

[0004] Therefore, there is an urgent need to provide a filtration structure for hydropower stations to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a filtration structure for hydropower stations.

[0006] The technical solution adopted to solve the above technical problems is: a hydropower station filter structure, including a first mounting base and a second mounting base, wherein a rotating cylinder is rotatably installed inside the first mounting base and the second mounting base; Both ends of the rotating cylinder are fixed with cylinder flanges, and one end of the cylinder flange is fixed with a flange pulley by bolts; A first motor is fixed to one side of the first mounting base, and a first belt is installed on the pulley of the first motor and the outside of the flange pulley. The rotating drum is equipped with a retrieval mechanism that continuously cleans up floating garbage, and a discharge mechanism is provided on one side of the retrieval mechanism that can collect and discharge the garbage in a timely manner.

[0007] Through the above technical solution, in actual hydropower station applications, this filter structure is installed at a key position in the water flow channel. The first and second mounting seats are installed according to the design requirements to ensure that their positions are accurate and firm. When the water flow carries floating garbage into the filter structure, the first motor drives the first belt to rotate through the output shaft. The first belt drives the flange pulley, the cylinder flange and the rotating cylinder to rotate accordingly.

[0008] Furthermore, the salvage mechanism includes a first switching shaft rotatably mounted inside one side of the rotating cylinder, and a first salvage net is fixedly mounted on the outside of the first switching shaft via a slot.

[0009] Through the above technical solution, the first switching shaft can drive the first retrieval net to rotate 90 degrees. When the first retrieval net is in a horizontal state, the rotating cylinder drives the first retrieval net to retrieve garbage. When the first retrieval net is in a vertical state, the rotating cylinder drives the first retrieval net to dump garbage.

[0010] Furthermore, a second switching shaft is rotatably mounted on the other side of the interior of the rotating cylinder, and a second retrieval net is fixedly mounted on the exterior of the second switching shaft via a slot.

[0011] Through the above technical solution, the second switching shaft can drive the second retrieval net to rotate 90 degrees. When the second retrieval net is in a horizontal state, the rotating cylinder drives the second retrieval net to retrieve garbage. When the second retrieval net is in a vertical state, the rotating cylinder drives the second retrieval net to dump garbage.

[0012] Furthermore, a fixed shaft is fixed between the first mounting base and the second mounting base by bolts, and a first bevel gear is fixed to the outside of the fixed shaft. A second bevel gear is fixed to one end of both the first switching shaft and the second switching shaft, and the first bevel gear meshes with the two second bevel gears respectively.

[0013] With the above technical solution, when the rotating cylinder rotates, it will drive the second bevel gears of the first switching shaft and the second switching shaft to move accordingly. Due to the meshing action of the first bevel gear and the second bevel gear, the two second bevel gears will rotate around the first bevel gear on the fixed shaft, thereby driving the first switching shaft and the second switching shaft to change their angle.

[0014] Furthermore, a limiting plate is fixed to both sides of the first bevel gear, and a fixing plate is fixed to one side of each of the two second bevel gears, with one end of the limiting plate fitting and limiting the movement of the limiting plate to one end of the fixing plate.

[0015] Through the above technical solution, the circumferential tooth groove of the first bevel gear is divided into four evenly distributed areas, with the driving tooth groove and the blank inclined surface on opposite sides respectively. When the first bevel gear rotates, only the driving tooth groove can effectively mesh with the second bevel gear, while the blank inclined surface cannot transmit torque because it has no teeth. This ensures that each transmission only occurs within a 90-degree range, forming a natural indexing interval. After the first bevel gear drives the second bevel gear to complete a 90-degree rotation, its blank inclined surface corresponds to the meshing position. At this time, the end faces of the fixed plate and the limiting plate are in contact, and the resistance torque generated by the surface contact prevents further rotation, thus achieving physical locking. As the first bevel gear continues to rotate, the two plates separate and the restriction is released, entering the next cycle.

[0016] Furthermore, the discharge mechanism includes a slag discharge pipe shell disposed on one side of the first mounting base and the second mounting base, and a plurality of spaced slag collection shells are fixed on one side of the slag discharge pipe shell, with two of the slag collection shells fitting against the outside of the second dredging net.

[0017] Through the above technical solution, the rotating drum drives the retrieval net to pick up the garbage and gradually lift it up as the drum rotates. During the lifting process, the garbage will move outward under the combined action of centrifugal force and gravity, and finally fall into the slag collection shell that is attached to it. As the rotating drum continues to rotate, each slag collection shell receives the garbage in turn. The garbage accumulates in the slag collection shell and gradually slides towards the slag discharge pipe shell.

[0018] Furthermore, a belt housing is fixed to one side of the slag discharge pipe shell, and a second motor is fixed to one side of the belt housing. The output shaft of the second motor is fixedly connected to a spiral blade shaft with one end penetrating through and extending into the interior of the slag discharge pipe shell via a coupling.

[0019] Through the above technical solution, the second motor drives the spiral blade shaft to rotate, which in turn pushes the garbage accumulated in the slag discharge pipe shell to move outward.

[0020] Furthermore, a drive pulley with one end penetrating through and extending into the inside of the belt housing is rotatably installed on one side of the slag collection shell, and a second belt is fitted to the outside of the drive pulley and the spiral blade shaft.

[0021] Through the above technical solution, the spiral blade shaft drives the drive pulley to rotate via the second belt.

[0022] Furthermore, a driven pulley is rotatably mounted on the other side of the slag collection shell, and a feeding belt is fitted between the driven pulley and the driving pulley.

[0023] Through the above technical solution, the active pulley drives the driven pulley to rotate through the feeding belt. During the rotation, the feeding belt guides the garbage collected from the slag collection shell into the slag discharge pipe shell.

[0024] The beneficial effects of this invention are as follows: (1) By providing a retrieval mechanism, the present invention enables continuous and uninterrupted retrieval of floating garbage, and the garbage dumping process can be completed without stopping, which greatly shortens the working cycle, increases the amount of garbage cleaned per unit time, significantly improves work efficiency, can quickly and effectively improve the water quality environment, and at the same time reduces manpower input and maintenance costs, and has significant economic advantages in long-term operation. (2) By providing a discharge mechanism, the present invention can collect and discharge the salvaged garbage in a timely manner, avoid the accumulation of garbage inside the equipment, ensure the normal operation of the equipment, and has a high degree of automation, reducing the number of manual loading and unloading and reducing the labor intensity of the staff. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the salvage mechanism of the present invention; Figure 3 This is an exploded structural diagram of the salvage mechanism of the present invention; Figure 4 This is a partial structural diagram of the salvage mechanism of the present invention; Figure 5 This is a schematic diagram of the material discharge mechanism of the present invention; Figure 6 This is an exploded structural diagram of the material discharge mechanism of the present invention.

[0026] Reference numerals in the attached drawings: 1. First mounting base; 2. Second mounting base; 3. Rotating cylinder; 4. Cylinder flange; 5. Flange pulley; 6. First motor; 7. First belt; 8. Salvage mechanism; 801. First switching shaft; 802. First salvage net; 803. Second switching shaft; 804. Second salvage net; 805. Fixed shaft; 806. First bevel gear; 807. Second bevel gear; 808. Limiting plate; 809. Fixed plate; 9. Discharge mechanism; 901. Slag discharge pipe shell; 902. Slag collection shell; 903. Belt shell; 904. Second motor; 905. Spiral blade shaft; 906. Driving pulley; 907. Second belt; 908. Driven pulley; 909. Discharge belt. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0028] like Figures 1-6As shown, a hydropower station filtration structure of this embodiment includes a first mounting base 1 and a second mounting base 2. A rotating cylinder 3 is rotatably mounted inside the first mounting base 1 and the second mounting base 2. Both ends of the rotating cylinder 3 are fixed with cylinder flanges 4, and one end of the cylinder flange 4 is fixed with a flange pulley 5 by bolts. A first motor 6 is fixed to one side of the first mounting base 1, and a first belt 7 is installed in contact with the outside of the flange pulley 5 of the first motor 6. The rotating cylinder 3 is equipped with a retrieval mechanism 8 for continuous cleaning of floating debris. The retrieval mechanism 8 includes a first switching shaft 801 rotatably mounted on one side of the rotating cylinder 3. A first retrieval net 802 is fixedly mounted on the outside of the first switching shaft 801 through a slot. The other side of the rotating cylinder 3 is rotatably mounted with a first switching shaft 801. A second switching shaft 803 is installed, and a second retrieval net 804 is fixedly mounted on the outside of the second switching shaft 803 via a slot. A fixing shaft 805 is fixed between the first mounting base 1 and the second mounting base 2 by bolts. A first bevel gear 806 is fixed to the outside of the fixing shaft 805. A second bevel gear 807 is fixed to one end of both the first switching shaft 801 and the second switching shaft 803. The first bevel gear 806 meshes with the two second bevel gears 807 respectively. Limiting plates 808 are fixed to both sides of the first bevel gear 806, and fixing plates 809 are fixed to one side of each of the two second bevel gears 807. One end of the limiting plate 808 fits against one end of the fixing plate 809 for limitation. In actual hydropower station applications, this filter structure is installed at a key position in the water flow channel. Install the first mounting base 1 and the second mounting base 2 according to the design requirements, ensuring their positions are accurate and secure. When water carrying floating debris enters the filter structure, the first motor 6 drives the first belt 7 to rotate via its output shaft. The first belt 7 drives the flange pulley 5, the cylinder flange 4, and the rotating cylinder 3 to rotate accordingly. As the rotating cylinder 3 rotates, it drives the second bevel gears 807 of the first switching shaft 801 and the second switching shaft 803 to move accordingly. Due to the meshing of the first bevel gear 806 and the second bevel gear 807, the two second bevel gears 807 will rotate around the first bevel gear 806 on the fixed shaft 805, thereby causing the first switching shaft 801 and the second switching shaft 803 to change their angles, dividing the circumferential tooth grooves of the first bevel gear 806. The system comprises four evenly distributed areas, with a drive tooth groove and a blank inclined surface on opposite sides. When the first bevel gear 806 rotates, only the drive tooth groove can effectively mesh with the second bevel gear 807. The blank inclined surface, lacking teeth, cannot transmit torque, ensuring that each transmission occurs only within a 90-degree range, forming a natural indexing interval. After the first bevel gear 806 drives the second bevel gear 807 to complete a 90-degree rotation, its blank inclined surface aligns with the meshing position. At this point, the fixed plate 809 and the limiting plate 808's end faces are in contact, generating a resistance torque through surface contact to prevent further rotation, achieving physical locking. As the first bevel gear 806 continues to rotate, the two plates separate, releasing the restriction and entering the next cycle. The first switching shaft 801 can then drive the first salvage net 802 to rotate 90 degrees.When the first retrieval net 802 is horizontal, the rotating cylinder 3 drives the first retrieval net 802 to retrieve garbage. When the first retrieval net 802 is vertical, the rotating cylinder 3 drives the first retrieval net 802 to dump the garbage. The second switching shaft 803 can drive the second retrieval net 804 to rotate 90 degrees. When the second retrieval net 804 is horizontal, the rotating cylinder 3 drives the second retrieval net 804 to retrieve garbage; when the second retrieval net 804 is vertical, the rotating cylinder 3 drives the second retrieval net 804 to dump the garbage.

[0029] Alternatively, the first bevel gear 806 can be set to continuously drive the two second bevel gears 807 to rotate; during initial installation, the first retrieval net 802 is installed horizontally and the second retrieval net 804 is installed vertically, ensuring that the first retrieval net 802 and the second retrieval net 804 repeatedly cycle between dumping and retrieval of garbage.

[0030] like Figure 5 and Figure 6 As shown, a discharge mechanism 9 is provided on one side of the retrieval mechanism 8 to collect and discharge the retrievald garbage in a timely manner. The discharge mechanism 9 includes a slag discharge pipe shell 901 located on one side of the first mounting base 1 and the second mounting base 2. A plurality of spaced slag collection shells 902 are fixed on one side of the slag discharge pipe shell 901. The slag collection shells 902 are in contact with the outside of the second retrieval net 804 between them. A belt housing 903 is fixed on one side of the slag discharge pipe shell 901. A second motor 904 is fixed on one side of the belt housing 903. The output shaft of the second motor 904 is fixedly connected to a spiral blade shaft 905, one end of which passes through and extends into the interior of the slag discharge pipe shell 901, via a coupling. A drive pulley 906, one end of which passes through and extends into the interior of the belt housing 903, is rotatably mounted on one side of the slag collection shell 902. A second belt 907 is fitted to the outside of the drive pulley 906 and the spiral blade shaft 905. A driven pulley 908 is rotatably mounted on the other side of the slag collection shell 902. A feeding belt 909 is fitted between the pulley 908 and the drive pulley 906. The rotating drum 3 drives the scooping net to pick up the garbage and gradually lift it as the drum 3 rotates. During the lifting process, the garbage will move outward under the combined action of centrifugal force and gravity, and finally fall into the slag collection shell 902 that is fitted with it. As the rotating drum 3 continues to rotate, each slag collection shell 902 receives the garbage in turn. The garbage accumulates in the slag collection shell 902 and gradually slides towards the slag discharge pipe shell 901. The second motor 904 drives the spiral blade shaft 905 to rotate, so that the spiral blade shaft 905 pushes the garbage accumulated in the slag discharge pipe shell 901 outward. At the same time, the spiral blade shaft 905 will also drive the drive pulley 906 to rotate through the second belt 907. The drive pulley 906 drives the driven pulley 908 to rotate through the feeding belt 909. During the rotation, the feeding belt 909 guides the garbage collected from the slag collection shell 902 into the slag discharge pipe shell 901.

[0031] The working principle of this embodiment is as follows: In actual hydropower station applications, this filter structure is installed at a key position in the water flow channel. The first mounting base 1 and the second mounting base 2 are installed according to design requirements, ensuring their positions are accurate and secure. When the water flow carries floating debris into the filter structure, the first motor 6 drives the first belt 7 to rotate via its output shaft. The first belt 7 drives the flange pulley 5, the cylindrical flange 4, and the rotating cylinder 3 to rotate accordingly. As the rotating cylinder 3 rotates, it drives the second bevel gears 807 of the first switching shaft 801 and the second switching shaft 803 to move accordingly. Due to the meshing of the first bevel gear 806 and the second bevel gear 807, the two second bevel gears 807 will move around the first bevel gear 806 on the fixed shaft 805. The rotation of the first bevel gear 806 causes the first switching shaft 801 and the second switching shaft 803 to change their angles. The circumferential tooth groove of the first bevel gear 806 is divided into four evenly distributed areas, with the driving tooth groove and the blank inclined surface on opposite sides. When the first bevel gear 806 rotates, only the driving tooth groove can effectively mesh with the second bevel gear 807, while the blank inclined surface, having no teeth, cannot transmit torque. This ensures that each transmission only occurs within a 90-degree range, forming a natural indexing interval. After the first bevel gear 806 drives the second bevel gear 807 to complete a 90-degree rotation, its blank inclined surface corresponds to the meshing position. At this time, the fixed plate 809 and the end face of the limiting plate 808 are in contact, generating a resistance torque through surface contact to prevent further rotation, thus achieving physical locking. A bevel gear 806 rotates continuously, the two plates separate and release the restriction, entering the next cycle. The rotating drum 3 drives the scooping net to pick up the garbage and gradually lift it as the rotating drum 3 rotates. During the lifting process, the garbage will move outward under the combined action of centrifugal force and gravity, and finally fall into the slag collection shell 902 that is in contact with it. The first switching shaft 801 can drive the first scooping net 802 to rotate 90 degrees. When the first scooping net 802 is in a horizontal state, the rotating drum 3 drives the first scooping net 802 to pick up the garbage. When the first scooping net 802 is in a vertical state, the rotating drum 3 drives the first scooping net 802 to dump the garbage. The second switching shaft 803 can drive the second scooping net 804 to rotate 90 degrees. When the scooping net 804 is in a horizontal position, the rotating drum 3 drives the second scooping net 804 to scoop up the garbage. When the second scooping net 804 is in a vertical position, the rotating drum 3 drives the second scooping net 804 to dump the garbage. As the rotating drum 3 continues to rotate, each slag collection shell 902 receives the garbage in turn. The garbage accumulates in the slag collection shell 902 and gradually slides towards the slag discharge pipe shell 901. The second motor 904 drives the spiral blade shaft 905 to rotate, causing the spiral blade shaft 905 to push the garbage accumulated in the slag discharge pipe shell 901 outward. At the same time, the spiral blade shaft 905 also drives the drive pulley 906 to rotate via the second belt 907. The drive pulley 906 drives the driven pulley 908 to rotate via the feeding belt 909.During its rotation, the conveyor belt 909 guides the waste collected from the slag collection shell 902 into the slag discharge pipe shell 901.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A filtration structure for a hydropower station, comprising a first mounting base (1) and a second mounting base (2), characterized in that: A rotating cylinder (3) is rotatably mounted inside the first mounting base (1) and the second mounting base (2); Both ends of the rotating cylinder (3) are fixed with cylinder flanges (4), and one end of the cylinder flange (4) is fixed with a flange pulley (5). A first motor (6) is fixed on one side of the first mounting base (1), and a first belt (7) is installed on the pulley of the first motor (6) and the outside of the flange pulley (5). The rotating cylinder (3) is equipped with a retrieval mechanism (8) for continuously cleaning floating garbage. The retrieval mechanism (8) is equipped with a discharge mechanism (9) on one side to collect and discharge the retrieved garbage.

2. The hydropower station filtration structure according to claim 1, characterized in that, The salvage mechanism (8) includes a first switching shaft (801) rotatably mounted on one side inside the rotating cylinder (3), and a first salvage net (802) is fixedly mounted on the outside of the first switching shaft (801) through a slot.

3. The hydropower station filtration structure according to claim 2, characterized in that, A second switching shaft (803) is rotatably installed on the other side of the interior of the rotating cylinder (3), and a second retrieval net (804) is fixedly installed on the outside of the second switching shaft (803) through a slot.

4. The hydropower station filtration structure according to claim 3, characterized in that, A fixed shaft (805) is fixed between the first mounting base (1) and the second mounting base (2). A first bevel gear (806) is fixed to the outside of the fixed shaft (805). A second bevel gear (807) is fixed to one end of the first switching shaft (801) and the second switching shaft (803). The first bevel gear (806) meshes with the two second bevel gears (807) respectively.

5. The hydropower station filtration structure according to claim 4, characterized in that, Limiting plates (808) are fixed on both sides of the first bevel gear (806), and fixing plates (809) are fixed on one side of each of the two second bevel gears (807). One end of the limiting plate (808) is fitted and limited to one end of the fixing plate (809).

6. The hydropower station filtration structure according to claim 3, characterized in that, The discharge mechanism (9) includes a slag discharge pipe shell (901) located on one side of the first mounting base (1) and the second mounting base (2). A plurality of slag collection shells (902) are fixed on one side of the slag discharge pipe shell (901) at intervals. The two slag collection shells (902) are attached to the outside of the second dredging net (804).

7. The hydropower station filtration structure according to claim 6, characterized in that, A belt housing (903) is fixed to one side of the slag discharge pipe shell (901), and a second motor (904) is fixed to one side of the belt housing (903). The output shaft of the second motor (904) is fixedly connected to a spiral blade shaft (905) that extends through and into the interior of the slag discharge pipe shell (901) via a coupling.

8. The hydropower station filtration structure according to claim 7, characterized in that, A drive pulley (906) with one end penetrating through and extending into the inside of the belt housing (903) is rotatably mounted on one side of the slag collection shell (902). A second belt (907) is fitted to the outside of the drive pulley (906) and the spiral blade shaft (905).

9. The hydropower station filtration structure according to claim 8, characterized in that, A driven pulley (908) is rotatably mounted on the other side of the slag collection shell (902), and a feeding belt (909) is fitted between the driven pulley (908) and the driving pulley (906).

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