Water flow control structure for water inlet of hydropower station

Abstract

The utility model relates to the technical field of hydropower station water flow control and discloses a hydropower station water inlet water flow control structure which comprises a trumpet-shaped water inlet pipe, a first connecting flange is fixedly installed on the left side of the outer wall of the trumpet-shaped water inlet pipe, and a water inlet pipe body is fixedly installed on the right side wall face of the trumpet-shaped water inlet pipe. A second connecting flange is fixedly mounted on the right side of the outer wall of the water inlet pipe main body, a water flow adjusting driving mechanism is arranged on the inner wall of the water inlet pipe main body, a mounting pipe is fixedly mounted on the inner wall of the water inlet pipe main body, and a limiting groove is formed in the right side of the inner wall of the water inlet pipe main body. The water flow regulation driving mechanism drives an arc-shaped connecting rod and a connecting rod through a worm and a worm gear, so that the whole device has a self-locking function, and the problem of inaccurate flow regulation caused by water flow impact is avoided; and during adjustment, the flow can be automatically and accurately controlled only by controlling the rotation of the servo motor through the controller, and the overall operation is simple and convenient.

Description

Technical Field

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

[0002] As an important energy supply facility, the operation efficiency and safety of hydropower stations have always been the focus of attention. As an important part of a hydropower station, the design and optimization of the water flow control structure of the water inlet is directly related to the overall performance of the hydropower station.

[0003] The water flow control structure at the water inlet of the hydropower station currently on the market has problems such as inconvenient operation and low adjustment accuracy. Under the long-term impact of the water flow, the accuracy of flow regulation will drop significantly, which seriously restricts the operation effect of the hydropower station.

[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 a trumpet-shaped water inlet pipe, a first connecting flange is fixedly installed on the left side of the outer wall of the trumpet-shaped water inlet pipe, a water inlet pipe body is fixedly installed on the right side wall of the trumpet-shaped water inlet pipe, a second connecting flange is fixedly installed on the right side of the outer wall of the water inlet pipe body, a water flow regulating driving mechanism is arranged on the inner wall of the water inlet pipe body, a mounting pipe is fixedly installed on the inner wall of the water inlet pipe body, a limiting groove is provided on the right side of the inner wall of the water inlet pipe body, a flow regulating cage is movably installed on the right side of the outer wall of the water flow regulating driving mechanism, a blocking pipe is fixedly installed on the left side wall of the flow regulating cage, and the inner wall of the blocking pipe is movably connected to the right side of the outer wall of the water flow regulating driving mechanism, the outer wall of the blocking pipe is movably connected to the inner wall of the mounting pipe, the right side of the outer wall of the blocking pipe is movably contacted with the inner wall of the water inlet pipe body at the limiting groove, and the water flow regulating driving mechanism comprises a servo motor, and the bottom of the servo motor is fixedly connected to the top of the water inlet pipe body, and the output end of the servo motor movably penetrates the top of the inner wall of the water inlet pipe body.

[0007] Preferably, a worm is fixedly mounted on the output end of the servo motor, and the bottom of the worm is movably connected to the bottom of the inner wall of the water inlet pipe body.

[0008] Preferably, a worm wheel is movably engaged on the left side of the outer wall of the worm.

[0009] Preferably, a rotating rod is fixedly mounted on the inner wall of the worm wheel.

[0010] Preferably, the front face of the rotating rod is movably connected to the front end of the inner wall of the water inlet pipe body.

[0011] Preferably, the back side of the rotating rod is movably connected to the rear end of the inner wall of the water inlet pipe body.

[0012] Preferably, an arc-shaped connecting rod is fixedly mounted on the outer wall of the rotating rod.

[0013] Preferably, a connecting rod is movably mounted on the lower end of the inner wall of the arc-shaped connecting rod.

[0014] Preferably, the right side wall of the connecting rod movably penetrates the right side of the inner wall of the blocking tube and is movably connected to the left side wall of the flow regulating cage.

[0015] Beneficial Effects

[0016] The utility model provides a water flow control structure for a water inlet of a hydropower station, which has the following beneficial effects:

[0017] (1) The water flow control structure of the water inlet of the hydropower station is provided with a water flow regulating driving mechanism. The water flow regulating driving mechanism drives the arc connecting rod and the connecting rod through the worm and the worm gear, so that the whole device has a self-locking function, avoiding the problem of inaccurate flow regulation caused by water flow impact. When adjusting, the flow can be automatically and accurately controlled by controlling the rotation of the servo motor through the controller. The overall operation is simple and convenient.

[0018] (2) The water flow control structure of the water inlet of the hydropower station is provided with a limit groove, which can limit the blocking pipe and prevent the blocking pipe from being displaced due to the impact of the water flow for a long time, thereby further improving the flow regulation effect of the entire device.

[0019] (3) The water flow control structure of the water inlet of the hydropower station is provided with a flow regulating cage, which can gather the bubbles in the water flow in the center of the flow channel for collision and energy dissipation, effectively prevent cavitation, and increase the service life of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model;

[0021] Figure 2 This is a front structural diagram of the water flow regulating drive mechanism of the utility model;

[0022] Figure 3 It is a perspective view of the internal structure of the water inlet pipe body of the utility model.

[0023] Legend: 10. Trumpet-shaped water inlet pipe; 11. First connecting flange; 12. Water inlet pipe body; 13. Second connecting flange; 14. Water flow regulation drive mechanism; 15. Mounting pipe; 16. Limiting groove; 17. Sealing pipe; 18. Flow regulation cage; 19. Servo motor; 20. Worm; 21. Worm wheel; 22. Rotating rod; 23. Arc connecting rod; 24. Connecting rod. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Embodiment 1: A water flow control structure for a water inlet of a hydropower station, such as Figure 1 As shown, it includes a trumpet-shaped water inlet pipe 10, a first connecting flange 11 is fixedly installed on the left side of the outer wall of the trumpet-shaped water inlet pipe 10, a water inlet pipe body 12 is fixedly installed on the right side wall of the trumpet-shaped water inlet pipe 10, a second connecting flange 13 is fixedly installed on the right side of the outer wall of the water inlet pipe body 12, and a water flow regulating driving mechanism 14 is arranged on the inner wall of the water inlet pipe body 12. By setting the water flow regulating driving mechanism 14, the water flow regulating driving mechanism 14 drives the arc connecting rod 23 and the connecting rod 24 through the worm 20 and the worm gear 21, so that the whole device has a self-locking function, avoiding the problem of inaccurate flow regulation caused by water flow impact, and when adjusting, it is only necessary to control the rotation of the servo motor 19 through the controller to automatically and accurately control the flow, and the overall operation is simple and convenient.

[0031] Embodiment 2: Based on Embodiment 1, Figure 2As shown, the water flow regulating driving mechanism 14 includes a servo motor 19, and the bottom of the servo motor 19 is fixedly connected to the top of the water inlet pipe body 12, the output end of the servo motor 19 movably penetrates the top of the inner wall of the water inlet pipe body 12, the output end of the servo motor 19 is fixedly installed with a worm 20, and the bottom of the worm 20 is movably connected to the bottom of the inner wall of the water inlet pipe body 12, the left side of the outer wall of the worm 20 is movably engaged with a worm wheel 21, the inner wall of the worm wheel 21 is fixedly installed with a rotating rod 22, and the front side of the rotating rod 22 is movably connected to the front end of the inner wall of the water inlet pipe body 12, and the rotating rod 22 is rotated. The back side of the rod 22 is movably connected to the rear end of the inner wall of the water inlet pipe body 12, and an arc-shaped connecting rod 23 is fixedly installed on the outer wall of the rotating rod 22. A connecting rod 24 is movably installed on the lower end of the inner wall of the arc-shaped connecting rod 23, and the right side wall of the connecting rod 24 movably penetrates the right side of the inner wall of the blocking tube 17 and is movably connected to the left side wall of the flow regulating cage 18. By setting a limiting groove 16, the limiting groove 16 can limit the blocking tube 17 to prevent the blocking tube 17 from being displaced due to the impact of the water flow for a long time, thereby further improving the flow regulation effect of the entire device.

[0032] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 3 As shown, a mounting tube 15 is fixedly installed on the inner wall of the water inlet pipe body 12, a limiting groove 16 is provided on the right side of the inner wall of the water inlet pipe body 12, a flow regulating cage 18 is movably installed on the right side of the outer wall of the water flow regulating driving mechanism 14, a blocking tube 17 is fixedly installed on the left wall of the flow regulating cage 18, and the inner wall of the blocking tube 17 is movably connected to the right side of the outer wall of the water flow regulating driving mechanism 14, the outer wall of the blocking tube 17 is movably connected to the inner wall of the mounting tube 15, and the right side of the outer wall of the blocking tube 17 is movably contacted with the inner wall of the water inlet pipe body 12 at the limiting groove 16. By setting the flow regulating cage 18, the flow regulating cage 18 can gather the bubbles in the water flow in the center of the flow channel for collision and energy dissipation, effectively prevent cavitation, and improve the service life of the entire device.

[0033] The working principle of the utility model is as follows: by turning on the switch of the servo motor 19, the output end of the servo motor 19 drives the worm 20 to start rotating, the worm 20 drives the worm wheel 21 to start rotating, the worm wheel 21 drives the arc connecting rod 23 to start rotating through the rotating rod 22, and the arc connecting rod 23 drives the flow regulating cage 18 and the blocking pipe 17 to move left and right through the connecting rod 24, thereby achieving the purpose of regulating the flow of the water inlet pipe main body 12.

[0034] 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 trumpet-shaped water inlet pipe (10), characterized in that: A first connecting flange (11) is fixedly mounted on the left side of the outer wall of the trumpet-shaped water inlet pipe (10), a water inlet pipe body (12) is fixedly mounted on the right side wall of the trumpet-shaped water inlet pipe (10), a second connecting flange (13) is fixedly mounted on the right side of the outer wall of the water inlet pipe body (12), a water flow regulating driving mechanism (14) is arranged on the inner wall of the water inlet pipe body (12), a mounting pipe (15) is fixedly mounted on the inner wall of the water inlet pipe body (12), a limiting groove (16) is provided on the right side of the inner wall of the water inlet pipe body (12), a flow regulating cage (18) is movably mounted on the right side of the outer wall of the water flow regulating driving mechanism (14), and the flow regulating mechanism (14) is provided on the right side of the outer wall of the water flow regulating driving mechanism (14). A blocking tube (17) is fixedly mounted on the left wall of the squirrel cage (18), and the inner wall of the blocking tube (17) is movably connected to the right side of the outer wall of the water flow regulating driving mechanism (14), the outer wall of the blocking tube (17) is movably connected to the inner wall of the mounting tube (15), the right side of the outer wall of the blocking tube (17) is movably contacted with the inner wall of the water inlet pipe body (12) at the limiting groove (16), the water flow regulating driving mechanism (14) comprises a servo motor (19), the bottom of the servo motor (19) is fixedly connected to the top of the water inlet pipe body (12), and the output end of the servo motor (19) movably penetrates the top of the inner wall of the water inlet pipe body (12).

2. The water flow control structure for the water inlet of a hydropower station according to claim 1, characterized in that: A worm (20) is fixedly mounted on the output end of the servo motor (19), and the bottom of the worm (20) is movably connected to the bottom of the inner wall of the water inlet pipe body (12).

3. The water flow control structure for the water inlet of a hydropower station according to claim 2, characterized in that: A worm wheel (21) is movably engaged with the left side of the outer wall of the worm (20).

4. The water flow control structure for the water inlet of a hydropower station according to claim 3, characterized in that: A rotating rod (22) is fixedly mounted on the inner wall of the worm wheel (21).

5. The water flow control structure for the water inlet of a hydropower station according to claim 4, characterized in that: The front side of the rotating rod (22) is movably connected to the front end of the inner wall of the water inlet pipe body (12).

6. The water flow control structure for the water inlet of a hydropower station according to claim 4, characterized in that: The back side of the rotating rod (22) is movably connected to the rear end of the inner wall of the water inlet pipe body (12).

7. The water flow control structure for the water inlet of a hydropower station according to claim 4, characterized in that: An arc-shaped connecting rod (23) is fixedly mounted on the outer wall of the rotating rod (22).

8. The water flow control structure for the water inlet of a hydropower station according to claim 7, characterized in that: A connecting rod (24) is movably mounted on the lower end of the inner wall of the arc-shaped connecting rod (23).

9. The water flow control structure for the water inlet of a hydropower station according to claim 8, characterized in that: The right wall surface of the connecting rod (24) movably penetrates the right side of the inner wall of the blocking tube (17) and is movably connected to the left wall surface of the flow regulating cage (18).

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