A water flow control structure for water inlet of a hydropower station

Abstract

The utility model relates to the technical field of hydropower station equipment, and discloses a water flow control structure of a water inlet of a hydropower station, comprising a water inlet pipe, a water outlet pipe fixedly installed on the right side wall of the water inlet pipe, a mounting frame fixedly installed on the right side wall of the water outlet pipe, an adjusting baffle fixedly installed on the right side of the inner wall of the water inlet pipe, an adjusting hole opened on the right side wall of the adjusting baffle, a sealing ring fixedly installed on the left side of the inner wall of the mounting frame, an automatic flow regulating mechanism arranged on the right side of the inner wall of the mounting frame, the automatic flow regulating mechanism comprising a servo motor, by arranging the automatic flow regulating mechanism, the automatic flow regulating mechanism can drive the flow regulating cone away from or close to the regulating hole on the regulating baffle through an internal threaded pipe, thereby realizing automatic control and regulation of the water flow, and because the screw rod has a self-locking function, the entire automatic flow regulating mechanism can still accurately control and regulate the water flow in the face of a large water flow, thereby ensuring the stable operation of the hydropower station.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower station equipment, in particular to a water flow control structure of a water inlet of a hydropower station. Background Art

[0002] A hydropower station is a comprehensive engineering facility that converts water energy into electrical energy. It is also called a hydropower plant. It includes a series of hydropower station buildings built to produce electricity using water energy and various hydropower station equipment installed. These buildings are used to concentrate the drop of natural water flow to form a head, collect and regulate the flow of natural water flow, and transmit it to the turbine. Through the joint operation of the turbine and the generator, the concentrated water energy is converted into electrical energy, and then the electrical energy is input into the power grid through transformers, switch stations and transmission lines. In addition to the buildings required for power generation, some hydropower stations often have other buildings that serve the comprehensive utilization purposes of flood control, irrigation, shipping, wood and fish. At present, in water conservancy and hydropower projects, the water inlet of the power station is usually divided into multiple flow channels by partitions. The water flow is affected by the solid side wall of the water diversion channel, the shape and size of the water inlet and the dynamic conditions of the water flow itself. The flow through each flow channel is not equal, and there is a large difference in the diversion ratio, resulting in uneven distribution of cross-sectional flow velocity. Therefore, a water flow control device at the water inlet of a hydropower station is used to regulate the water flow.

[0003] The existing water flow control device at the water inlet of a hydropower station has a poor effect on regulating and controlling the water flow and is unable to accurately control the water flow. When faced with a large water flow, the accuracy of flow regulation will drop significantly, and the stable operation of the hydropower station cannot be guaranteed.

[0004] Therefore, we propose a water flow control structure for the water intake of a hydropower station. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a water flow control structure for a water inlet of a hydropower station.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a water flow control structure of a water inlet of a hydropower station, comprising an inlet pipe, a water outlet pipe is fixedly installed on the right side wall of the inlet pipe, a mounting frame is fixedly installed on the right side wall of the outlet pipe, an adjusting baffle is fixedly installed on the right side of the inner wall of the inlet pipe, an adjusting hole is opened on the right side wall of the adjusting baffle, a sealing ring is fixedly installed on the left side of the inner wall of the mounting frame, an automatic flow regulating mechanism is arranged on the right side of the inner wall of the mounting frame, the automatic flow regulating mechanism comprises a servo motor, and the right side wall of the servo motor is fixedly connected to the right side of the inner wall of the mounting frame, a first gear is fixedly installed on the output end of the servo motor, a mounting plate is movably installed on the left side wall of the first gear, and the outer wall of the mounting plate is fixedly connected to the inner wall of the mounting frame, a limiting guide rod is fixedly installed on the left side wall of the mounting plate, and the left side wall of the limiting guide rod is fixedly connected to the left side of the inner wall of the mounting frame, and the outer wall of the first gear is movably meshed with a second gear.

[0007] Preferably, a rotating column is fixedly mounted on the inner wall of the second gear, and the right side wall of the rotating column is movably connected to the right side of the inner wall of the mounting frame.

[0008] Preferably, the left side of the outer wall of the rotating column is movably connected to the inner wall of the mounting plate.

[0009] Preferably, a screw rod is fixedly mounted on the left wall surface of the rotating column.

[0010] Preferably, the outer wall of the screw rod is threadedly connected with an internally threaded tube.

[0011] Preferably, a limiting plate is fixedly mounted on the middle end of the outer wall of the internally threaded tube, and the lower end of the inner wall of the limiting plate is movably connected to the outer wall of the limiting guide rod.

[0012] Preferably, a flow regulating cone is fixedly mounted on the left wall of the internally threaded tube, and the outer wall of the flow regulating cone is in movable contact with the inner wall of the regulating partition at the regulating hole.

[0013] Beneficial Effects

[0014] The utility model provides a water flow control structure for a water inlet of a hydropower station, which has the following beneficial effects:

[0015] (1) The water flow control structure at the water inlet of a hydropower station is provided with an automatic flow regulating mechanism. The automatic flow regulating mechanism can drive the flow regulating cone away from or close to the regulating hole on the regulating baffle through the internal threaded tube, thereby realizing automatic control and regulation of the water flow. Since the screw rod has a self-locking function, the entire automatic flow regulating mechanism can still accurately control and regulate the water flow when facing a large water flow, thereby ensuring the stable operation of the hydropower station.

[0016] (2) The water flow control structure of the water inlet of the hydropower station is provided with a sealing ring, which can seal the water outlet pipe and the automatic flow regulating mechanism to prevent water leakage at the connection between the water outlet pipe and the automatic flow regulating mechanism, thereby increasing the service life of the entire device.

[0017] (3) The water flow control structure at the water inlet of the hydropower station is provided with a mounting plate, which can fix the entire automatic flow regulating mechanism, making the automatic flow regulating mechanism more stable during operation, thereby improving the operating stability of the entire automatic flow regulating mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model;

[0019] Figure 2 This is a perspective view of the top structure of the water outlet pipe of the utility model;

[0020] Figure 3 It is a front structural schematic diagram of the automatic flow regulating mechanism of the utility model.

[0021] Legend: 10. Water inlet pipe; 11. Water outlet pipe; 12. Mounting frame; 13. Adjustment baffle; 14. Adjustment hole; 15. Sealing ring; 16. Automatic flow adjustment mechanism; 17. Servo motor; 18. First gear; 19. Mounting plate; 20. Limit guide rod; 21. Second gear; 22. Rotating column; 23. Screw; 24. Internally threaded pipe; 25. Limit plate; 26. Flow adjustment cone. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "upper", "lower", "inner", "outer", "side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1: A water flow control structure for a water inlet of a hydropower station, such as Figure 1 As shown, it includes an inlet pipe 10, a water outlet pipe 11 is fixedly installed on the right wall of the water inlet pipe 10, a mounting frame 12 is fixedly installed on the right wall of the water outlet pipe 11, a sealing ring 15 is fixedly installed on the left side of the inner wall of the mounting frame 12, and an automatic flow regulating mechanism 16 is arranged on the right side of the inner wall of the mounting frame 12. By setting up the automatic flow regulating mechanism 16, the automatic flow regulating mechanism 16 can drive the flow regulating cone 26 away from or close to the regulating hole 14 on the regulating baffle 13 through the internal threaded tube 24, so as to realize automatic control and regulation of the water flow. Since the screw rod 23 has a self-locking function, the entire automatic flow regulating mechanism 16 can still accurately control and regulate the water flow when facing a large water flow, thereby ensuring the stable operation of the hydropower station.

[0029] Embodiment 2: Based on Embodiment 1, Figure 2 As shown, an adjusting baffle 13 is fixedly installed on the right side of the inner wall of the water inlet pipe 10, and an adjusting hole 14 is opened on the right side wall of the adjusting baffle 13. A sealing ring 15 is provided, which can seal the water outlet pipe 11 and the automatic flow regulating mechanism 16 to prevent water leakage at the connection between the water outlet pipe 11 and the automatic flow regulating mechanism 16, thereby improving the service life of the entire device.

[0030] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 3 As shown, the automatic flow regulating mechanism 16 includes a servo motor 17, and the right side wall of the servo motor 17 is fixedly connected to the right side of the inner wall of the mounting frame 12, the output end of the servo motor 17 is fixedly installed with a first gear 18, the left side wall of the first gear 18 is movably installed with a mounting plate 19, and the outer wall of the mounting plate 19 is fixedly connected to the inner wall of the mounting frame 12, the left side wall of the mounting plate 19 is fixedly installed with a limited guide rod 20, and the left side wall of the limited guide rod 20 is fixedly connected to the left side of the inner wall of the mounting frame 12, the outer wall of the first gear 18 is movably meshed with a second gear 21, the inner wall of the second gear 21 is fixedly installed with a rotating column 22, and the right side wall of the rotating column 22 is movably connected to the right side of the inner wall of the mounting frame 12, and the outer side of the rotating column 22 is fixedly connected to the inner wall of the mounting frame 12. The left side of the wall is movably connected to the inner wall of the mounting plate 19, a screw rod 23 is fixedly installed on the left side wall of the rotating column 22, and the outer wall of the screw rod 23 is threadedly connected to an internally threaded tube 24, a limit plate 25 is fixedly installed on the middle end of the outer wall of the internally threaded tube 24, and the lower end of the inner wall of the limit plate 25 is movably connected to the outer wall of the limit guide rod 20, a flow regulating cone 26 is fixedly installed on the left side wall of the internally threaded tube 24, and the outer wall of the flow regulating cone 26 is in movably contact with the inner wall of the regulating partition 13 at the regulating hole 14, by setting the mounting plate 19, the mounting plate 19 can play a fixing role on the entire automatic flow regulating mechanism 16, so that the automatic flow regulating mechanism 16 is more stable during operation, thereby improving the operation stability of the entire automatic flow regulating mechanism 16.

[0031] The working principle of the utility model is as follows: by turning on the switch of the servo motor 17, the output end of the servo motor 17 drives the first gear 18 to start rotating, the first gear 18 drives the second gear 21 to start rotating, the second gear 21 drives the rotating column 22 to start rotating, the rotating column 22 drives the screw rod 23 to start rotating, the screw rod 23 drives the internal threaded tube 24 to move left or right along the limiting guide rod 20 through the limiting plate 25, and the internal threaded tube 24 drives the flow regulating cone 26 away from or close to the regulating hole 14 on the regulating partition 13, thereby realizing the control and regulation of the water flow.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. 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 may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A water flow control structure for a water inlet of a hydropower station, comprising a water inlet pipe (10), characterized in that: The right side wall of the water inlet pipe (10) is fixedly mounted with a water outlet pipe (11), the right side wall of the water outlet pipe (11) is fixedly mounted with a mounting frame (12), the right side wall of the inner wall of the water inlet pipe (10) is fixedly mounted with an adjusting baffle (13), the right side wall of the adjusting baffle (13) is provided with an adjusting hole (14), the left side of the inner wall of the mounting frame (12) is fixedly mounted with a sealing ring (15), the right side of the inner wall of the mounting frame (12) is provided with an automatic flow regulating mechanism (16), the automatic flow regulating mechanism (16) comprises a servo motor (17), and the servo motor (17) ) is fixedly connected to the right side of the inner wall of the mounting frame (12); a first gear (18) is fixedly installed on the output end of the servo motor (17); a mounting plate (19) is movably installed on the left side wall of the first gear (18); and the outer wall of the mounting plate (19) is fixedly connected to the inner wall of the mounting frame (12); a limiting guide rod (20) is fixedly installed on the left side wall of the mounting plate (19); and the left side wall of the limiting guide rod (20) is fixedly connected to the left side of the inner wall of the mounting frame (12); and a second gear (21) is movably meshed with the outer wall of the first gear (18).

2. The water flow control structure for the water inlet of a hydropower station according to claim 1, characterized in that: A rotating column (22) is fixedly mounted on the inner wall of the second gear (21), and the right side wall surface of the rotating column (22) is movably connected to the right side of the inner wall of the mounting frame (12).

3. The water flow control structure for the water inlet of a hydropower station according to claim 2, characterized in that: The left side of the outer wall of the rotating column (22) is movably connected to the inner wall of the mounting plate (19).

4. The water flow control structure for the water inlet of a hydropower station according to claim 2, characterized in that: A screw rod (23) is fixedly mounted on the left wall surface of the rotating column (22).

5. The water flow control structure for the water inlet of a hydropower station according to claim 4, characterized in that: The outer wall of the screw rod (23) is threadedly connected with an internal threaded tube (24).

6. The water flow control structure for the water inlet of a hydropower station according to claim 5, characterized in that: A limiting plate (25) is fixedly mounted on the middle end of the outer wall of the internally threaded tube (24), and the lower end of the inner wall of the limiting plate (25) is movably connected to the outer wall of the limiting guide rod (20).

7. The water flow control structure for the water inlet of a hydropower station according to claim 5, characterized in that: A flow regulating cone (26) is fixedly mounted on the left wall of the internally threaded tube (24), and the outer wall of the flow regulating cone (26) is in active contact with the inner wall of the regulating partition (13) at the regulating hole (14).

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