Water conservancy and hydropower engineering retaining dam with self-adaptive flow regulation function

Abstract

The invention discloses a self-adaptive flow regulation water retaining dam for water conservancy and hydropower engineering, and relates to the field of water conservancy and hydropower engineering, the self-adaptive flow regulation water retaining dam comprises a dam body and a flashboard, the flashboard is arranged in the middle of the dam body to shield a water body, a mounting seat is arranged above the dam body, and a movement control mechanism is arranged above the flashboard; and the movement control mechanism is installed in the installation base and controls vertical movement of the gate plate, an embedded base is arranged below the gate plate and located below the dam body, the interior of the embedded base is hollow, and an auxiliary supporting mechanism is arranged in the embedded base. According to the water conservancy and hydropower engineering retaining dam with the self-adaptive flow adjustment function, a downward movement containing space is provided for the flashboard through the embedded base, water flow control is achieved through downward movement of the flashboard, the water flows out of the flashboard, and the water flow and the flow speed of the water can be controlled by controlling the descending amount of the flashboard; and compared with upward opening of the flashboard, water impact force is smaller, and the service life of the flashboard is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy and hydropower engineering, and specifically relates to a water retaining dam for a water conservancy and hydropower project with adaptive flow regulation. Background Technique

[0002] In water conservancy and hydropower projects, the water retaining dam is an important water conservancy regulation device. When adjusting the flow rate of the water retaining dam, it is generally achieved by controlling the opening amplitude of the water retaining dam.

[0003] Prior Art 1 (Chinese Patent with application number CN202322108857.2, published on February 23, 2024) A water retaining dam convenient for adjusting the flow rate, including a water retaining dam body. An accommodation groove is opened inside the water retaining dam body. A water blocking plate is slidably connected inside the accommodation groove. A sliding groove is opened inside the water blocking plate, and a movable plate is slidably connected between the inner walls of the sliding groove. A displacement component is arranged on the top of the water blocking plate, and the displacement component is used to drive the movable plate to move. Outer water inlets are opened on both sides of the water blocking plate, and inner water inlets are opened inside the movable plate, and the outer water inlets correspond to the inner water inlets. This application aims to solve the problem that in actual use, when the existing water retaining dam accumulates a lot of water and then suddenly drains a large area of water, it is easy to damage the water retaining dam body, affecting the service life and subsequent use of the water retaining dam, thus causing certain limitations to the use of the water retaining dam and being not conducive to actual use; Prior Art 2 (Chinese Patent with application number CN202021469387.2, published on June 11, 2021) A water retaining dam for a water conservancy and hydropower project that can be adjusted, including a dam. A flowing water channel is opened in the middle of the dam. A bottom plate is fixedly connected to the upper end surface of the dam. Two sliders are slidably arranged on the upper end surface of the bottom plate. A valve plate is detachably arranged at one end of the slider close to the flowing water channel. A driving component for driving the slider to move is arranged on the upper end surface of the bottom plate, and a guiding component for guiding is arranged on the lower end surface of the valve plate. This application has the effect of driving the valve plate to open and close by using the driving component, facilitating the adjustment of the river water flow rate; Prior Art 3 (Chinese Patent with application number CN202320819203.8, published on October 31, 2023) A water retaining dam for a water conservancy and hydropower project that can be adjusted, including a dam body, a rotary water gate for adjusting the water flow rate in the middle of the dam body, a first flowing water channel for passing water opened in the middle of the dam body, a driving device for carrying and driving the anti-friction device and the rotary water gate, a locking device for preventing the rotary water gate from being overloaded, and a driving device for providing driving power. For the water retaining dam for a water conservancy and hydropower project that can be adjusted, a first flowing water channel is opened in the middle of the dam body, and an arc-shaped water gate installation groove adapted to the rotary water gate is opened inside the dam body. Arc-shaped sliding rails are symmetrically opened at the top of the water gate installation groove; the rotary water gate is movably installed in the water gate installation groove between the dam bodies. For this water retaining dam for a water conservancy and hydropower project that can be adjusted, the anti-seepage effect between the dam body and the rotary water gate is good with stable and firm connection.

[0004] When the current water retaining dam adjusts the flow rate, it opens the channel by controlling the gate to move upward. However, this method causes the water flow to be discharged at high speed under high pressure, resulting in greater impacts caused by the excessive flow rate, affecting the service life of the equipment. Moreover, the current device is not convenient for detecting the water flow rate, so the flow rate of the water retaining dam cannot be automatically controlled. Summary of the Invention

[0005] The purpose of the present invention is to provide a water retaining dam for water conservancy and hydropower projects with adaptive flow regulation, so as to solve the problems in the above-mentioned background technology. When the current water retaining dam adjusts the flow rate, it opens the channel by controlling the gate to move upward. However, this method causes the water flow to be discharged at high speed under high pressure, resulting in greater impacts caused by the excessive flow rate, affecting the service life of the equipment. Moreover, the current device is not convenient for detecting the water flow rate, so the flow rate of the water retaining dam cannot be automatically controlled.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A water retaining dam for water conservancy and hydropower projects with adaptive flow regulation includes a dam body and a gate. The gate is arranged in the middle of the dam body to block the water body. An installation seat is arranged above the dam body, and a moving control mechanism is arranged above the gate. The moving control mechanism is installed in the installation seat to control the vertical movement of the gate. A socket is arranged below the gate, and the socket is located below the dam body. The inside of the socket is hollow, and an auxiliary support mechanism is arranged inside the socket to provide auxiliary support force for the gate. A vertical sliding structure is formed between the gate and the socket. The flow rate is controlled by the downward movement of the gate. A flow detection mechanism is arranged above the gate to regulate the water flow rate through the flow detection mechanism.

[0008] Further optimizing the technical solution, a sealing strip is arranged on the outer side of the gate, and the sealing strip is installed at the bottom of the dam body to seal the connection between the gate and the socket.

[0009] Further optimizing the technical solution, the auxiliary support mechanism includes auxiliary support blocks and buffer springs;

[0010] Auxiliary support blocks are arranged inside the socket, and the auxiliary support blocks are symmetrically arranged about the center line of the gate. The upper part of the auxiliary support blocks is designed in an inclined shape;

[0011] Buffer springs are installed outside the auxiliary support blocks to provide thrust for the auxiliary support blocks.

[0012] Further optimizing the technical solution, a sliding plate is fixed below the gate, and the end of the sliding plate is designed in an arc shape. The gate is in contact with the auxiliary support blocks through the sliding plate.

[0013] Further optimize this technical solution. The flow detection mechanism includes a second mounting block, a runner, and a rotational speed detector;

[0014] The second mounting block is fixed above the gate;

[0015] The runner is rotatably mounted inside the second mounting block, and the water flow drives the runner to rotate;

[0016] The rotational speed detector is connected to the runner to detect the rotational speed of the runner.

[0017] Further optimize this technical solution. A first mounting block is fixed above the gate, and a floating plate is vertically slidably mounted inside the first mounting block. A distance measuring instrument is arranged above the floating plate to detect the water flow height. The water flow velocity on the gate can be detected through the runner and the rotational speed detector. At the same time, the distance between the floating plate and the distance measuring instrument can also reflect the water flow height, so as to understand the water flow state on the gate.

[0018] Further optimize this technical solution. The movement control mechanism includes a driving rod, a rotating gear, a transmission gear, a mounting shaft, and a reduction drive motor;

[0019] The driving rod is fixed above the gate;

[0020] The rotating gear is rotatably mounted inside the mounting seat. The driving rod passes through the rotating gear and is threadedly connected to the rotating gear;

[0021] The transmission gear is arranged outside the rotating gear and is meshed with the rotating gear;

[0022] The mounting shaft is fixed in the middle of the transmission gear;

[0023] The reduction drive motor is arranged above the mounting seat, and the reduction drive motor is connected to the mounting shaft to control the rotation of the mounting shaft.

[0024] Further optimize this technical solution. Ball bearings are evenly distributed below the transmission gear, and an annular positioning ring is fixed on the transmission gear. The positioning ring and the mounting seat form a sliding connection.

[0025] Further optimize this technical solution. An auxiliary limiting mechanism is arranged above the gate to limit the position of the gate.

[0026] Further optimize this technical solution. The auxiliary limiting mechanism includes a guiding plate, a clamping groove, a clamping block, a return spring, a magnetic block, and an electromagnet;

[0027] The guiding plate is arranged above the gate, and the guiding plate passes through the mounting seat;

[0028] The card slots are vertically and equidistantly opened on the surface of the guiding plate;

[0029] The card block is arranged inside the mounting seat, and a clamping structure is formed between the card block and the card slot, and a horizontal sliding structure is formed between the card block and the mounting seat;

[0030] The return spring is arranged outside the card block to provide a thrust force for the card block;

[0031] The magnetic block is fixed outside the card block;

[0032] The electromagnet is arranged outside the magnetic block and attracts the magnetic block when electrified.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] (1) The embedding seat provides a downward storage space for the sluice gate. The flow rate of the water body is controlled by the downward movement of the sluice gate. Since the water body flows out from the sluice gate, the flow rate and velocity of the water body can be controlled by controlling the descending amount of the sluice gate. Compared with the upward opening of the sluice gate, it has a smaller water impact force and prolongs its service life.

[0035] (2) The auxiliary support block in the embedding seat can provide bottom support for the sluice gate, avoiding excessive force exerted on the driving rod by the self-weight of the sluice gate, protecting the support rod, and enabling the support rod to better drive the sluice gate to move subsequently.

[0036] (3) The water flow velocity on the sluice gate can be detected by the runner and the rotational speed detector. At the same time, the distance between the floating plate and the rangefinder can also reflect the water flow height, so as to understand the water flow state on the sluice gate. Subsequently, the sluice gate can be controlled to move through this data to achieve adaptive regulation and control of the flow rate.

[0037] (4) The guiding plate can be limited by the connection between the card block and the card slot, and the sluice gate can be locked to prevent the sluice gate from directly falling when the support rod is damaged, resulting in the failure of its water blocking effect. Moreover, the movement of the card block can be controlled by electrification. Before controlling the movement of the support rod, the circuit can be connected to automatically release the connection between the card block and the card slot. Description of the Drawings

[0038] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0039] Figure 2 It is a top view structure schematic diagram of the present invention;

[0040] Figure 3 It is a top view structure schematic diagram of the dam body of the present invention;

[0041] Figure 4 It is a three-dimensional structure schematic diagram of the sluice gate of the present invention;

[0042] Figure 5 Schematic diagram of the main cross-section of the embedding seat of the present invention;

[0043] Figure 6 Schematic diagram of the internal structure of the first mounting block and the second mounting block of the present invention;

[0044] Figure 7 Schematic diagram of the main cross-section of the mounting seat of the present invention;

[0045] Figure 8 Schematic diagram of the top cross-section of the mounting seat of the present invention.

[0046] In the figure: 1, dam body; 2, gate plate; 3, mounting seat; 4, embedding seat; 5, sealing strip; 6, auxiliary support block; 7, buffer spring; 8, sliding plate; 9, driving rod; 10, rotating gear; 11, ball; 12, positioning ring; 13, transmission gear; 14, mounting shaft; 15, reduction drive motor; 16, first mounting block; 17, second mounting block; 18, guiding plate; 19, floating plate; 20, rangefinder; 21, runner; 22, rotational speed detector; 23, card slot; 24, clamping block; 25, return spring; 26, magnetic block; 27, electromagnet. Specific embodiments

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] Please refer to Figures 1 - 8 , Embodiment 1: The present invention provides the following technical solutions: A water retaining dam for a water conservancy and hydropower project with adaptive flow regulation, including a dam body 1 and a gate plate 2. The gate plate 2 is arranged in the middle of the dam body 1 to block the water body. Above the dam body 1, there is a mounting seat 3. Above the gate plate 2, there is a moving control mechanism, and the moving control mechanism is installed in the mounting seat 3 to control the vertical movement of the gate plate 2. Below the gate plate 2, there is an embedding seat 4, and the embedding seat 4 is located below the dam body 1. The inside of the embedding seat 4 is hollow, and an auxiliary support mechanism is arranged inside the embedding seat 4 to provide auxiliary support force for the gate plate 2. And a vertical sliding structure is formed between the gate plate 2 and the embedding seat 4, and the flow rate is controlled by the downward movement of the gate plate 2. Above the gate plate 2, there is a flow detection mechanism to regulate the water body flow rate through the flow detection mechanism. On the outside of the gate plate 2, there is a sealing strip 5, and the sealing strip 5 is installed at the bottom of the dam body 1 to seal the connection between the gate plate 2 and the embedding seat 4.

[0049] When constructing the dam body 1, the installation position of the embedding seat 4 is dug downward deeply to provide a storage space for the subsequent downward movement of the gate plate 2. When it is necessary to control the water flow, the gate plate 2 can be controlled to move downward through the movement control mechanism, and the gate plate 2 is moved below the liquid level height. At this time, the water body begins to flow through the gate plate 2. By controlling the downward movement distance of the gate plate 2, the water flow rate and velocity can be controlled. The auxiliary support mechanism can provide auxiliary support below the gate plate 2 to reduce the load of the movement control mechanism. The flow detection mechanism can detect the water flow velocity on the gate plate 2, and then adjust the position of the gate plate 2 through its data to achieve adaptive flow regulation.

[0050] Embodiment 2: On the basis of Embodiment 1, it is disclosed that the auxiliary support mechanism includes an auxiliary support block 6 and a buffer spring 7. The auxiliary support block 6 is arranged inside the embedding seat 4, and the auxiliary support block 6 is symmetrically arranged about the center line of the gate plate 2, and the upper part of the auxiliary support block 6 is designed with an inclined structure. The buffer spring 7 is installed outside the auxiliary support block 6 to provide a thrust force for the auxiliary support block 6. A sliding plate 8 is fixed below the gate plate 2, and the end of the sliding plate 8 is designed with an arc-shaped structure. The gate plate 2 is in contact with the auxiliary support block 6 through the sliding plate 8. The flow detection mechanism includes a second mounting block 17, a runner 21 and a rotational speed detector 22. The second mounting block 17 is fixed above the gate plate 2. The runner 21 is rotatably installed inside the second mounting block 17, and the water body flow drives the runner 21 to rotate. The rotational speed detector 22 is connected to the runner 21 to detect the rotational speed of the runner 21. A first mounting block 16 is fixed above the gate plate 2, and a floating plate 19 is vertically slidably installed inside the first mounting block 16, and a distance measuring instrument 20 is arranged above the floating plate 19 to detect the water flow height.

[0051] The auxiliary support block 6 provides an upward thrust force for the gate plate 2 through the buffer spring 7. When the gate plate 2 moves downward, the auxiliary support block 6 is compressed and moves horizontally, compressing the buffer spring 7. When the gate plate 2 moves upward, the auxiliary support block 6 automatically moves under the action of the buffer spring 7 to provide an auxiliary support effect for the gate plate 2. The water flow velocity is detected by the runner 21 and the rotational speed detector 22. When the water body flows through the gate plate 2, the floating plate 19 moves upward under the action of buoyancy, and the distance measuring instrument 20 detects the distance change, and the water body height data can be collected. Subsequently, the data is fed back to the movement control mechanism to control the movement adjustment of the gate plate 2.

[0052] Embodiment 3: On the basis of Embodiment 2, it is disclosed that the mobile control mechanism includes a driving rod 9, a rotating gear 10, a transmission gear 13, a mounting shaft 14 and a reduction drive motor 15. The driving rod 9 is fixed above the gate plate 2. The rotating gear 10 is rotatably installed inside the mounting seat 3. The driving rod 9 passes through the rotating gear 10 and forms a threaded connection between the rotating gear 10. The transmission gear 13 is arranged outside the rotating gear 10 and forms a meshing connection with the rotating gear 10. The mounting shaft 14 is fixed in the middle of the transmission gear 13. The reduction drive motor 15 is arranged above the mounting seat 3, and the reduction drive motor 15 is connected to the mounting shaft 14 to control the rotation of the mounting shaft 14. A plurality of balls 11 are evenly distributed below the transmission gear 13, and an annular positioning ring 12 is fixed on the transmission gear 13, and a sliding connection is formed between the positioning ring 12 and the mounting seat 3. An auxiliary limiting mechanism is arranged above the gate plate 2 to limit the position of the gate plate 2. The auxiliary limiting mechanism includes a guiding plate 18, a card slot 23, a clamping block 24, a return spring 25, a magnetic block 26 and an electromagnet 27. The guiding plate 18 is arranged above the gate plate 2 and passes through the mounting seat 3. The card slots 23 are vertically and equally spaced on the surface of the guiding plate 18. The clamping block 24 is arranged inside the mounting seat 3, and a clamping structure is formed between the clamping block 24 and the card slot 23, and a horizontal sliding structure is formed between the clamping block 24 and the mounting seat 3. The return spring 25 is arranged outside the clamping block 24 to provide a thrust for the clamping block 24. The magnetic block 26 is fixed outside the clamping block 24. The electromagnet 27 is arranged outside the magnetic block 26 and attracts the magnetic block 26 when energized.

[0053] The connection between the clamping block 24 and the card slot 23 can limit the guiding plate 18 and position the gate plate 2. The auxiliary support block 5 in the embedding seat 4 can provide bottom support for the gate plate 2, avoiding excessive force exerted on the driving rod 9 by the gate plate 2 due to its own weight, protecting the support rod 9, and also enabling the support rod 9 to better drive the gate plate 2 to move subsequently. When it is necessary to control the movement of the gate plate 2, the circuit connection between the reduction drive motor 15 and the electromagnet 27 is connected. The electromagnet 27 attracts the magnetic block 26, drives the clamping block 24 to move, releases the connection between the clamping block 24 and the card slot 23, and then controls the reduction drive motor 15 to drive the mounting shaft 14 and the transmission gear 13 to rotate. The transmission gear 13 drives the rotating gear 10 to rotate through the meshing with the rotating gear 10. The rotating gear 10 drives the driving rod 9 to move vertically through the threaded connection with the driving rod 9, thereby controlling the movement of the gate plate 2.

[0054] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A water retaining dam for water conservancy and hydropower projects with adaptive flow regulation, comprising a dam body (1) and a gate plate (2), wherein the gate plate (2) is arranged in the middle of the dam body (1) to block water; it is characterized in that: Above the dam body (1), there is an installation seat (3). Above the gate plate (2), there is a movement control mechanism which is installed in the installation seat (3) to control the vertical movement of the gate plate (2). Below the gate plate (2), there is an embedding seat (4), and the embedding seat (4) is located below the dam body (1). The interior of the embedding seat (4) is hollow, and an auxiliary support mechanism is arranged inside the embedding seat (4) to provide auxiliary support force for the gate plate (2). A vertical sliding structure is formed between the gate plate (2) and the embedding seat (4), and the water flow is controlled by the downward movement of the gate plate (2). Above the gate plate (2), there is a flow detection mechanism to regulate the water body flow through the flow detection mechanism.

2. An overflow dam for a water conservancy and hydropower project with adaptive flow regulation according to claim 1, characterized in that: A sealing strip (5) is arranged on the outer side of the gate plate (2), and the sealing strip (5) is installed at the bottom of the dam body (1) to seal the connection between the gate plate (2) and the embedding seat (4).

3. The water retaining dam for water conservancy and hydropower projects with adaptive flow regulation according to claim 1, characterized in that: The auxiliary support mechanism includes auxiliary support blocks (6) and buffer springs (7); Auxiliary support blocks (6) are arranged inside the embedding seat (4), and the auxiliary support blocks (6) are symmetrically arranged about the center line of the gate plate (2), and the upper part of the auxiliary support blocks (6) is designed with an inclined structure; Buffer springs (7) are installed on the outer sides of the auxiliary support blocks (6) to provide thrust for the auxiliary support blocks (6).

4. The water retaining dam for water conservancy and hydropower projects with adaptive flow regulation according to claim 3, wherein: A sliding plate (8) is fixed below the gate plate (2), and the end of the sliding plate (8) is designed with an arc-shaped structure. The gate plate (2) is in contact with the auxiliary support blocks (6) through the sliding plate (8).

5. An impervious dam for water conservancy and hydropower projects with adaptive flow regulation according to claim 1, characterized in that: The flow detection mechanism includes a second installation block (17), a runner (21) and a rotational speed detector (22); The second installation block (17) is fixed above the gate plate (2); The runner (21) is rotatably installed inside the second installation block (17), and the water body flow drives the runner (21) to rotate; The rotational speed detector (22) is connected to the runner (21) to detect the rotational speed of the runner (21).

6. The water retaining dam for water conservancy and hydropower projects with adaptive flow regulation according to claim 5, characterized in that: A first installation block (16) is fixed above the gate plate (2), and a floating plate (19) is vertically slidably installed inside the first installation block (16), and a distance measuring instrument (20) is arranged above the floating plate (19) to detect the water flow height.

7. An overflow dam for a water conservancy and hydropower project with adaptive flow regulation according to claim 1, characterized in that: The movement control mechanism includes a driving rod (9), a rotating gear (10), a transmission gear (13), a mounting shaft (14) and a reduction drive motor (15); The driving rod (9) is fixed above the gate plate (2); The rotating gear (10) is rotatably installed inside the installation seat (3), and the driving rod (9) passes through the rotating gear (10) and is threadedly connected to the rotating gear (10); The transmission gear (13) is arranged outside the rotating gear (10) and is meshed with the rotating gear (10); The mounting shaft (14) is fixed in the middle of the transmission gear (13); The reduction drive motor (15) is arranged above the installation seat (3), and the reduction drive motor (15) is connected to the mounting shaft (14) to control the rotation of the mounting shaft (14).

8. An overflow dam for a water conservancy and hydropower project with adaptive flow regulation according to claim 7, characterized in that: Below the transmission gear (13), balls (11) are evenly distributed, and an annular positioning ring (12) is fixed on the transmission gear (13). A sliding connection is formed between the positioning ring (12) and the mounting seat (3).

9. An overflow dam for a water conservancy and hydropower project with adaptive flow regulation according to claim 1, characterized in that: Above the gate plate (2), an auxiliary limit mechanism is provided to limit the position of the gate plate (2).

10. A water retaining dam for water conservancy and hydropower projects with adaptive flow regulation according to claim 9, characterized in that: The auxiliary limit mechanism includes a guide plate (18), a card slot (23), a clamping block (24), a return spring (25), a magnetic block (26), and an electromagnet (27). The guide plate (18) is arranged above the gate plate (2) and penetrates through the mounting seat (3). The card slots (23) are vertically and equidistantly formed on the surface of the guide plate (18). The clamping block (24) is arranged inside the mounting seat (3). A clamping structure is formed between the clamping block (24) and the card slot (23), and a horizontal sliding structure is formed between the clamping block (24) and the mounting seat (3). The return spring (25) is arranged outside the clamping block (24) to provide a thrust for the clamping block (24). The magnetic block (26) is fixed outside the clamping block (24). The electromagnet (27) is arranged outside the magnetic block (26) and attracts the magnetic block (26) when powered on.

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