Tail water power generation device for hydropower station

Abstract

The utility model relates to the technical field of hydropower stations, and discloses a hydropower station tail water power generation device which comprises a power generator body and an impeller assembly arranged at the left end of the power generator body. The protection mechanism comprises two annular filter plates arranged at the left end and the right end of the fixing ring and two circular filter plates arranged at the ends, away from the fixing ring, of the two annular filter plates, and a fixing mechanism is arranged between the fixing ring and the two circular filter plates. The fixing mechanism comprises two groups of connecting insertion rods fixedly mounted on the left and right side wall surfaces of the fixing ring and two groups of fixing bolts rotationally connected with the side wall surfaces, close to the fixing ring, of the two circular filter plates, and driving mechanisms for driving the two groups of fixing bolts to rotate are arranged on the two circular filter plates. Through the arrangement of the fixing mechanism and the driving mechanism, the annular filter plate and the circular filter plate can be conveniently mounted and dismounted by the equipment, and the maintenance convenience of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower stations, in particular to a tailwater power generation device of a hydropower station. Background Art

[0002] After searching, application number 202121374969.7 discloses a tailwater power generation device of a hydropower station, including a generator, an impeller mechanism is arranged on the left side of the generator, the impeller mechanism includes a hollow shaft, blades are fixedly connected to the side surface of the hollow shaft, a fixing ring is fixedly connected to the side of the blade away from the hollow shaft, annular filter plates are arranged on the left and right sides of the fixing ring, a circular filter plate is arranged on the side of the two annular filter plates away from the fixing ring, and a connecting rod is fixedly connected to the inside of the fixing ring.

[0003] During use, a tailwater power generation device of a hydropower station in the patent application is released by removing the screws to release the fixation between the sealing cover and the limit plate, and then the sealing cover is turned to drive the knob to move the threaded rod out of the inside of the threaded hole, so that the annular filter plate and the circular filter plate can be removed from the fixing ring to facilitate subsequent cleaning operations. However, during such use, multiple groups of screws and threaded rods are provided on the device, which makes the dismantling and installation operations of the device more cumbersome, which brings inconvenience to the cleaning and maintenance of the device. For this reason, we propose a tailwater power generation device of a hydropower station. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a tailwater power generation device for a hydropower station.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tailwater power generation device of a hydropower station, comprising a generator body and an impeller assembly arranged at the left end of the generator body, the impeller assembly comprising a hollow shaft, a power generation blade fixedly mounted on the side surface of the hollow shaft, and a fixing ring fixedly mounted on a side of the power generation blade away from the hollow shaft, a protective mechanism is arranged on the fixing ring, the protective mechanism comprises two annular filter plates arranged on the left and right ends of the fixing ring and two circular filter plates arranged on one end of the two annular filter plates away from the fixing ring, a fixing mechanism is arranged between the fixing ring and the two circular filter plates, the fixing mechanism comprises two groups of connecting plug rods fixedly mounted on the left and right side walls of the fixing ring and two groups of fixing bolts rotatably connected to the side walls of the two circular filter plates close to the fixing ring, a driving mechanism for driving the two groups of fixing bolts to rotate is arranged on the two circular filter plates, and the driving mechanism comprises two protective shells fixedly mounted on a side of the two circular filter plates away from the fixing ring and two groups of synchronous sprockets arranged inside the two protective shells.

[0006] Furthermore, the two groups of connecting rods each include six connecting rods which are distributed in a circular shape with equal spacing.

[0007] Furthermore, two groups of connection holes corresponding to the positions of the two groups of connection plug rods are respectively penetrated through the side wall surfaces of the two annular filter plates, and the two groups of connection plug rods are respectively arranged inside the two groups of connection plug holes.

[0008] Furthermore, the two groups of fixing bolts correspond to the positions of the two groups of connecting rods respectively.

[0009] Furthermore, two groups of fixing screw holes matching with two groups of fixing bolts are provided at one end of the two groups of connecting rods away from the fixing ring, and one end of the two groups of fixing bolts is respectively installed with the internal threads of the two groups of fixing screw holes.

[0010] Furthermore, the two protective shells are both hexagonal in shape.

[0011] Furthermore, one end of the two groups of fixing bolts away from the fixing ring penetrates the side wall surfaces of the two circular filter plates and extends to the inside of the two protective shells respectively.

[0012] Furthermore, the two groups of synchronous sprockets are respectively fixedly connected to one end of two groups of fixing bolts located inside the two protective shells, and two synchronous chains are connected between the outer sides of the two groups of synchronous sprockets.

[0013] Furthermore, one end of the two fixing bolts located at the upper position passes through the two inner wall surfaces of the protective shell and extends to the outside and is provided with two hexagonal grooves.

[0014] Furthermore, rubber rings are fixedly connected to the left and right outer wall surfaces of the two groups of annular filter plates.

[0015] Beneficial Effects

[0016] The utility model provides a tailwater power generation device for a hydropower station, which has the following beneficial effects:

[0017] 1. The tailwater power generation device of the hydropower station is provided with a fixing mechanism and a driving mechanism. When the equipment needs to be cleaned and maintained, a hexagonal wrench is inserted into the hexagonal groove to drive the fixing bolt at the upper position to rotate. The fixing bolt at the upper position drives the other five synchronous sprockets to rotate synchronously through a group of synchronous sprockets and synchronous chains, so that one end of the six fixing bolts is away from the six fixing screw holes and the six connecting rods are released from the fixed installation, and the annular filter plate and the circular filter plate can be removed, thereby facilitating the maintenance of the equipment. Similarly, the fixing installation of the annular filter plate and the circular filter plate can be completed through the reverse operation. The above operation is simple and practical, and the structure is reasonable and compact, which realizes the convenient installation and disassembly operation of the annular filter plate and the circular filter plate of the equipment, and improves the convenience of maintenance of the equipment.

[0018] 2. In the tailwater power generation device of a hydropower station, a rubber ring is arranged so that the left and right ends of the annular filter plate are in elastic contact with the side wall surface of the circular filter plate and the side wall surface of the fixing ring through the rubber ring, thereby strengthening the connection between the annular filter plate, the circular filter plate and the fixing ring, and improving the stability of the device structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the utility model can be implemented, so they have no substantial technical significance.

[0020] Figure 1 This is a schematic diagram of the structure of the tailwater power generation device of a hydropower station of the utility model;

[0021] Figure 2 This is a cross-sectional view of the tailwater power generation device of a hydropower station according to the utility model;

[0022] Figure 3 It is a cross-sectional view of the driving mechanism of the utility model.

[0023] Legend:

[0024] 10. Generator body; 11. Hollow shaft; 12. Generator blades; 13. Fixing ring; 14. Annular filter plate; 15. Circular filter plate; 16. Connecting rod; 17. Connecting socket; 18. Fixing bolt; 19. Protective shell; 20. Synchronous sprocket; 21. Synchronous chain; 22. Hexagonal groove; 23. Fixing screw hole; 24. Rubber ring. DETAILED DESCRIPTION

[0025] A tailwater power generation device for a hydropower station, such as Figure 1-3As shown, the generator body 10 and the impeller assembly arranged at the left end of the generator body 10 include a hollow shaft 11, power generation blades 12 fixedly mounted on the side surface of the hollow shaft 11, and a fixing ring 13 fixedly mounted on the side of the power generation blades 12 away from the hollow shaft 11. The impeller assembly is a prior art and will not be described in detail. A protection mechanism is arranged on the fixing ring 13, and the protection mechanism includes two annular filter plates 14 arranged on the left and right ends of the fixing ring 13 and two circular filter plates 15 arranged on one end of the two annular filter plates 14 away from the fixing ring 13. The fixing ring 13 A fixing mechanism is provided between the two circular filter plates 15, and the fixing mechanism includes two groups of connecting rods 16 fixedly installed on the left and right side walls of the fixing ring 13 and two groups of fixing bolts 18 rotatably connected to the side walls of the two circular filter plates 15 close to the fixing ring 13. The two groups of connecting rods 16 each include six and are distributed in a circular equidistant state. The side walls of the two annular filter plates 14 are penetrated with two groups of connecting holes 17 corresponding to the positions of the two groups of connecting rods 16. The two groups of connecting rods 16 are respectively penetrated and arranged inside the two groups of connecting holes 17. The two groups of fixing bolts 18 are respectively connected to the two groups of The positions of the connecting rods 16 correspond to each other, and the ends of the two groups of connecting rods 16 away from the fixing ring 13 are provided with two groups of fixing screw holes 23 adapted to the two groups of fixing bolts 18. One end of the two groups of fixing bolts 18 is respectively threadedly installed with the internal threads of the two groups of fixing screw holes 23. The two circular filter plates 15 are provided with a driving mechanism for driving the two groups of fixing bolts 18 to rotate. The driving mechanism includes two protective shells 19 fixedly installed on one side of the two circular filter plates 15 away from the fixing ring 13 and two groups of synchronous sprockets 20 arranged inside the two protective shells 19. The two protective shells 19 are both hexagonal in shape. One end of the two sets of fixing bolts 18 away from the fixing ring 13 penetrates the side wall of the two circular filter plates 15 and extends to the inside of the two protective shells 19 respectively. The two sets of synchronous sprockets 20 are fixedly connected to one end of the two sets of fixing bolts 18 located inside the two protective shells 19 respectively. Two synchronous chains 21 are connected between the outer sides of the two sets of synchronous sprockets 20. One end of the two fixing bolts 18 located at the upper position penetrates the inner wall of the two protective shells 19 and extends to the outside and has two hexagonal grooves 22. The outer walls of the left and right sides of the two annular filter plates 14 are fixedly connected with rubber rings 24.

[0026] The working principle of the utility model is as follows: when the equipment needs to be cleaned and maintained, a hexagonal wrench is inserted into the hexagonal groove 22 to drive the fixing bolt 18 at the upper position to rotate, and the fixing bolt 18 at the upper position drives the other five synchronous sprockets 20 to rotate synchronously through a group of synchronous sprockets 20 and a synchronous chain 21, so that one end of the six fixing bolts 18 is away from the six fixing screw holes 23 and the six connecting rods 16 are released from the fixed installation, and the annular filter plate 14 and the circular filter plate 15 can be removed, so as to facilitate the maintenance of the equipment. Similarly, the annular filter plate 14 and the circular filter plate 15 can be fixedly installed by reverse operation. The above operation is simple and practical, and the structure is reasonable and compact, which realizes the convenient installation and disassembly operation of the annular filter plate 14 and the circular filter plate 15 of the equipment, and improves the convenience of maintenance of the equipment; the left and right ends of the annular filter plate 14 are elastically in contact with the side wall surface of the circular filter plate 15 and the side wall surface of the fixing ring 13 through the rubber ring 24, which enhances the connection among the annular filter plate 14, the circular filter plate 15 and the fixing ring 13, and improves the stability of the equipment structure.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A tailwater power generation device for a hydropower station, comprising a generator body (10) and an impeller assembly arranged at the left end of the generator body (10), wherein the impeller assembly comprises a hollow shaft (11), a power generation blade (12) fixedly mounted on a side surface of the hollow shaft (11), and a fixing ring (13) fixedly mounted on a side of the power generation blade (12) away from the hollow shaft (11), characterized in that: The fixing ring (13) is provided with a protection mechanism, which comprises two annular filter plates (14) arranged on the left and right ends of the fixing ring (13) and two circular filter plates (15) arranged on one end of the two annular filter plates (14) away from the fixing ring (13). A fixing mechanism is provided between the fixing ring (13) and the two circular filter plates (15). The fixing mechanism comprises two groups of connecting rods (16) fixedly mounted on the left and right side walls of the fixing ring (13) and two groups of fixing bolts (18) rotatably connected to the side wall of the two circular filter plates (15) close to the fixing ring (13). The two circular filter plates (15) are provided with a driving mechanism for driving the two groups of fixing bolts (18) to rotate. The driving mechanism comprises two protection shells (19) fixedly mounted on one side of the two circular filter plates (15) away from the fixing ring (13) and two groups of synchronous sprockets (20) arranged inside the two protection shells (19).

2. The tailwater power generation device of a hydropower station according to claim 1, characterized in that: The two groups of connecting rods (16) each include six and are distributed in an annular state with equal spacing. The side walls of the two annular filter plates (14) are penetrated by two groups of connecting holes (17) corresponding to the positions of the two groups of connecting rods (16). The two groups of connecting rods (16) are respectively arranged to penetrate the inside of the two groups of connecting holes (17).

3. The tailwater power generation device of a hydropower station according to claim 1, characterized in that: The two groups of fixing bolts (18) correspond to the positions of the two groups of connecting rods (16) respectively. The ends of the two groups of connecting rods (16) away from the fixing ring (13) are provided with two groups of fixing screw holes (23) adapted to the two groups of fixing bolts (18). One ends of the two groups of fixing bolts (18) are respectively installed with the internal threads of the two groups of fixing screw holes (23).

4. The tailwater power generation device of a hydropower station according to claim 1, characterized in that: The two protective shells (19) are both hexagonal in shape, and the ends of the two sets of fixing bolts (18) away from the fixing ring (13) penetrate the side walls of the two circular filter plates (15) and extend into the interior of the two protective shells (19) respectively.

5. The tailwater power generation device of a hydropower station according to claim 1, characterized in that: The two groups of synchronous sprockets (20) are respectively fixedly connected to one end of two groups of fixing bolts (18) located inside the two protective shells (19), and two synchronous chains (21) are connected between the outer sides of the two groups of synchronous sprockets (20).

6. The tailwater power generation device of a hydropower station according to claim 1, characterized in that: One end of the two fixing bolts (18) located at the upper position passes through the inner wall surfaces of the two protective shells (19) and extends to the outside and is provided with two hexagonal grooves (22).

7. The tailwater power generation device of a hydropower station according to claim 1, characterized in that: The left and right outer wall surfaces of the two annular filter plates (14) are both fixedly connected with rubber rings (24).

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