Gate replenishment control method

Abstract

The application relates to the technical field of water conservancy and hydropower engineering, in particular to a gate water replenishing control method. The gate water replenishing control method comprises the following steps: a gate body is controlled to be lifted by a hoist, before the gate body falls to a preset position, a controller controls a sealing end cover to be in a sealing state; when the gate body is about to fall to the preset position under the action of the hoist, the controller opens the sealing cover plate, an elastic member applies a force to a contact frame to move towards the gate body, a signal contact and a power supply contact of the contact frame move towards the gate body, the signal contact enters a conical structure of a signal end, the power supply contact enters a conical structure of a power supply end, the signal contact moves along a signal guide groove, the power supply contact moves along a power supply guide groove, until the gate body falls to the preset position, the signal contact is successfully inserted into the signal end, and the power supply contact is successfully inserted into the power supply end above the power supply guide groove. The application solves the problem that the professional ecological water replenishing pipeline control is not accurate enough.

Description

Technical Field

[0001] This application is a divisional application of Tan Zhiguo's earlier application (a gate water supply device, 202211430264.1, 2022.11.15). The present invention relates to the field of water conservancy and hydropower engineering technology, specifically to a gate water supply control method. Background Technology

[0002] The closure of the sluice gates and the commencement of reservoir impoundment are critical milestones in hydropower project construction. Only after impoundment can the generating units undergo relevant commissioning and operation. Closing the sluice gates involves lowering the temporary diversion tunnel gates used for water passage during the construction phase. After the sluice gates are closed, the downstream river may temporarily experience a flow interruption before the reservoir water level rises to a level suitable for releasing water from the power station's spillway structures, significantly impacting the downstream river's ecology. Therefore, measures for ecological water replenishment during the sluice gate closure period are considered from the initial design stage of hydropower projects. Currently, methods such as installing dedicated ecological water replenishment pipelines are commonly used, but these methods involve significant resource investment and lack precise control. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the existing hydropower station project requires a large investment of resources and the control is not precise enough when setting up a professional ecological water replenishment pipeline at the beginning of the design. Thus, a gate water replenishment control method is provided.

[0004] To address the above problems, the present invention provides a gate water supply control method, comprising:

[0005] During the gate closing process, the gate body is lowered by the elevator. Before the gate body reaches the preset position, the controller controls the sealing end cover to be in a sealed state. When the sealing end cover is in a sealed state, the contact frame is completely located in the tube, and the elastic element is in a compressed state.

[0006] When the gate body descends to near the preset position under the action of the elevator, the controller opens the sealing cover, and the elastic element applies a force to the contact frame to move towards the gate body. The signal contact and power supply contact of the contact frame move towards the gate body. The signal contact enters the conical opening structure of the signal end below the signal guide groove, and the power supply contact enters the conical opening structure of the power supply end below the power supply guide groove. The signal contact moves along the signal guide groove, and the power supply contact moves along the power supply guide groove until the gate body descends to the preset position. The signal contact is successfully inserted into the signal end above the signal guide groove, and the power supply contact is successfully inserted into the power supply end above the power supply guide groove. At the same time, the partition slot engages with the insulating pad to complete the gate closing action.

[0007] During the dam construction, impoundment, and operation, the remote control room remotely controls the controller based on data from the water pressure detection probes. The specific control steps are as follows:

[0008] When water needs to be replenished, the controller will send a signal to open the first and second opening and closing parts in sequence to supply water to the outside. The water flow can also be controlled by the first and second opening and closing parts.

[0009] When no water replenishment is needed, the controller sends a signal to close the first and second opening and closing components;

[0010] In extreme cases where the remote control functions of the first and second opening / closing components are damaged, personnel will enter through the diversion tunnel to manually open the components once they are reached.

[0011] The technical solution of this invention has the following advantages:

[0012] 1. The gate water supply control method provided by this invention has a high degree of automation. By installing a water pressure detection probe inside the water supply hole pipe, the water pressure is detected in real time, and the data is transmitted to a control switch connected to the control valve opening and closing device. When the water pressure reaches the set value, automatic closure is achieved. Simultaneously, through a unique structural design and a reliable "three-in-one" design for valve closure (remote control, water pressure detection control, and manual control), the problem of difficult closure of the water supply valve is solved, reducing the risk of the water supply hole valve failing to close effectively, and ensuring the safety and reliability of the ecological water supply hole operation. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the dam body and gate water supply device provided in an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the gate body provided in an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the tube body near the gate body provided in an embodiment of the present invention;

[0017] Figure 4 This is a side view of the gate structure inside the dam provided in an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of the ecological water replenishment channel provided in the embodiments of the present invention;

[0019] Figure 6 This is a schematic diagram of the contact element provided in an embodiment of the present invention;

[0020] Figure 7 This is a schematic diagram of the contact holder provided in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Dam body; 2. Gate body; 3. Protective pipe; 4. Slag rack; 5. First opening and closing component; 6. Second opening and closing component; 7. Contact frame; 8. Diversion tunnel; 9. Sealing cover plate; 10. Inspection hole; 11. Pipe body; 12. Elastic component; 13. Guide channel; 14. Elevator; 15. Controller; 16. Lower part; 17. Insulating pad; 18. Contact component; 19. Signal terminal; 20. Power supply terminal; 21. Signal line; 22. Power supply line; 23. Ecological water replenishment channel; 24. Signal contact; 25. Power supply contact; 26. Partition slot. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Example 1

[0027] This invention provides a gate water replenishment device, comprising a gate body 2 adapted to be installed within a dam body 1, an ecological water replenishment channel 23 provided at the lower part 16 of the gate body 2, an opening and closing component provided within the ecological water replenishment channel 23, and a contact component 18 provided on the backwater surface of the gate body 2, with the contact component 18 connected to the opening and closing component by wiring; and a control structure adapted to be installed within the dam body 1, comprising a controller 15 and the contact component 18 facing the backwater surface, the controller 15 being connected to a contact frame 7 by wiring, and after the gate body 2 falls to a predetermined position, the contact frame 7 contacts the contact component 18, and the controller 15 controls the opening and closing component to open or close via wiring to control the water flow within the ecological water replenishment channel 23.

[0028] The lower part 16 of the gate body 2 is equipped with an ecological water replenishment channel 23. This eliminates the need for a dedicated ecological water replenishment pipeline during the design and construction phases, saving resources, achieving multiple uses, and improving water replenishment efficiency. Simultaneously, contact elements 18 are located on the backwater surface of the gate body 2, and the control structure also has contact elements 18 facing the backwater surface. When the gate body 2 descends to a predetermined position such as the sill, the contact frame 7 contacts the contact elements 18 to connect electrical or communication signals. The controller 15 then controls the opening and closing of the opening and closing components to control the water flow within the ecological water replenishment channel 23, offering advantages in terms of ease and precision.

[0029] Example 2

[0030] like Figure 1 - Figure 7 One specific embodiment of the gate water supply device shown includes: a dam body 1, the dam body 1 having a gate body and a diversion tunnel 8, wherein the gate body 2 moves up and down along the guide groove 13 of the dam body 1, and a control structure located within the dam body 1.

[0031] like Figure 1 , Figure 2 , Figure 4 As shown, the gate body 2 is raised and lowered by a lift 14 located at the top of the dam body 1. An ecological water replenishment channel 23 is provided at the lower part 16 of the gate body, meaning the ecological water replenishment channel 23 penetrates the gate body. To control the water flow within the ecological water replenishment channel 23, a first opening / closing element 5 and a second opening / closing element 6 are provided within the channel. Specifically, both the first opening / closing element 5 and the second opening / closing element 6 are valves. It should be noted that the first opening / closing element 5 and the second opening / closing element 6 can be manually adjusted to open or close in the extreme state of no power supply. To prevent fish or waste from flowing into the ecological water replenishment channel 23, such as... Figure 5As shown, a debris barrier 4 is also installed at the inlet of the ecological water replenishment channel 23. To correspond with the diversion tunnel 8, a contact element 18 is provided on the backwater surface of the gate body. (See diagram below.) Figure 6 As shown, the contact element 18 has a signal guide groove and a power supply guide groove along its height. The upper end of the signal guide groove has a signal terminal 19, and the upper end of the power supply guide groove has a power supply terminal 20. Both the signal terminal 19 and the power supply terminal 20 are conical opening structures. To facilitate contact between the contact point and the contact end when the gate body 2 falls, the lower openings of the signal terminal 19 at the lower end of the signal guide groove and the power supply terminal 20 at the lower end of the power supply guide groove are designed with downward bevels. To facilitate separation between the contact point and the contact end when the gate body 2 is lifted, the upper openings of the signal terminal 19 at the upper end of the signal guide groove and the power supply terminal 20 at the upper end of the power supply guide groove are designed with upward bevels. To avoid signal interference between the signal guide groove and the power supply guide groove, such as... Figure 6 As shown, an insulating pad 17 is provided between the signal terminal 19 and the power supply terminal 20. It should be noted that the height of the insulating pad is lower than the height of the water seal on the gate body 2 to avoid affecting the normal operation of the gate body 2. For connection with the first opening / closing element 5 and the second opening / closing element 6, signal terminals 19 are connected to signal lines 21 between the first opening / closing element 5 and the second opening / closing element 6, respectively. Power supply terminals 20 are connected to power supply lines 22 between the first opening / closing element 5 and the second opening / closing element 6, respectively. Both signal lines 21 and power supply lines 22 are housed within the protective tube 3. To prevent signal interference between signal lines 21 and power supply lines 22, an insulating plate is provided between them.

[0032] like Figure 1 , Figure 2 As shown, a control structure is installed inside the dam body 1. One end of the diversion tunnel 8 is equipped with a controller 15, and the other end with a contact frame 7, i.e., the contact frame 7 is positioned facing the backwater side of the gate body 2. To connect the controller 15 and the contact frame 7, a wiring system is also included between the contact frame 7 and the controller 15, as well as a pipe 11 fitted around the wiring system. The pipe 11 is located inside the diversion tunnel 8 to protect the wiring system. The pipe 11 can be embedded into the dam body 1 during the dam body 1 pouring process, making installation convenient and simple. Specifically, the pipe 11 is made of steel. To prevent water from entering the pipe 11 and affecting the internal wiring, a water seal plate is installed at the top of the pipe 11 to prevent water from the diversion tunnel 8 from entering the pipe 11. The wiring includes a signal line 21 and a power supply line 22. To push the contact frame 7 towards the gate body 2, as... Figure 3 As shown, it also includes an elastic element 12 disposed between the tube body 11 and the contact frame 7. The contact frame 7 preferably has an arc-shaped structure. Specifically, the elastic element 12 is a spring. The elastic element 12 drives the contact frame 7 to move, so that the signal end 19 and the power supply end 20 of the contact frame 7 enter the signal end 19 and the power supply end 20 along the conical opening structure, realizing adaptive adjustment to solve the problem of the gate body 2 not falling into place.

[0033] To prevent the contact frame 7 from moving arbitrarily toward the gate body 2, a sealing cover 9 is provided at the end of the tube 11 facing the gate body 2, and the sealing cover 9 is connected to the controller 15 via signal connection. Specifically, the sealing cover 9 is made of cork. To ensure contact with the signal terminal 19 and power supply terminal 20 of the contact frame 7, such as... Figure 6 As shown, the contact frame 7 is equipped with a signal contact 24 adapted to the signal terminal 19 and a power supply contact 25 adapted to the power supply terminal 20. The signal contact 24 is plugged into the signal terminal 19, and the power supply contact 25 is plugged into the power supply terminal 20. To facilitate the rotation of the contact frame 7, a partition slot 26 is arranged between the signal contact 24 and the power supply contact 25. That is, the "arch-shaped" contact frame 7 can rotate around the partition slot 26 at a hinge point, so that the signal contact 24 can smoothly enter the signal terminal 19 and the power supply contact 25 can enter the power supply terminal 20, achieving precise docking. To facilitate the installation, removal, and maintenance of the contact frame 7, such as... Figure 3 As shown, the pipe body 11 has an inspection hole 10 on the side wall near the gate body 2, and an inspection cover plate for sealing the inspection hole 10. The inspection cover plate is used to seal the inspection hole to avoid problems such as air leakage and water leakage.

[0034] In the specific implementation process, the gate body 2 is raised and lowered by the elevator 14. Before the gate body 2 falls to the preset position, the controller 15 controls the sealing end cover to be in a sealed state, that is, the contact frame 7 is completely located inside the tube body 11, and at the same time, the elastic element 12 is in a compressed state. When the gate body 2 is about to fall to the preset position under the action of the elevator 14, the controller 15 opens the sealing cover 9, and the elastic element 12 applies a force to the contact frame 7 to move towards the gate body 2. The signal contact 24 and the power supply contact 25 of the contact frame 7 will move towards the gate body 2. The signal contact 24 enters the conical opening structure of the signal end 19 below the signal guide groove, and the power supply contact 25 enters the conical opening structure of the power supply end 20 below the power supply guide groove. The signal contact 24 moves along the signal guide groove, and the power supply contact 25 moves along the power supply guide groove until the gate body 2 falls to the preset position. The signal contact 24 is successfully connected to the signal end 19 above the signal guide groove, and the power supply contact 25 is successfully connected to the power supply end 20 above the power supply guide groove. At the same time, the partition slot 26 is engaged with the insulating pad 17. During dam construction, impoundment, and operation, the remote control room remotely controls controller 15 based on data from the water pressure detection probe. When water replenishment is needed, controller 15 sends a signal to sequentially open the first opening / closing device 5 and the second opening / closing device 6 to supply water. The water flow can also be controlled via the first and second opening / closing devices 5 and 6. When water replenishment is not needed, controller 15 sends a signal to close the first and second opening / closing devices 5 and 6. In extreme cases where the remote control function of the first and second opening / closing devices 5 and 6 is damaged, personnel will enter through the diversion tunnel 8 to manually open the devices. It should be noted that manual control is only a backup emergency measure.

[0035] As an alternative implementation, the ecological water replenishment channel 23 may also be equipped with a third opening and closing component, a fourth opening and closing component, or other opening and closing components.

[0036] As an alternative implementation, the sealing cover 9 can also be made of other materials such as plastic or steel.

[0037] As an alternative implementation, when the sealing cover 9 is opened, it can be opened by blowing air into the pipe body 11 by an air compressor. When the pressure inside the pipe body reaches a preset value, the sealing cover 9 is opened by pressure.

[0038] As an alternative implementation, the signal terminal 19 and the power supply terminal 20 may also be horn-shaped opening structures to facilitate precise connection between the contacts.

[0039] As an alternative implementation, in order to detect the water level and water pressure inside the dam, a water pressure detection probe and a remote control room are also installed on the dam body 1. The remote control room is connected to the water pressure detection probe, the elevator 14 and the controller 15 respectively. The water pressure detection probe transmits data to the remote control room. When the water pressure reaches the set value (e.g., when the reservoir water level rises to the point where conditions are met for discharge), the remote control room sends a command to the controller 15, which opens or closes the opening and closing parts to achieve automated control.

[0040] Of course, this embodiment does not specifically limit the connection method between signal contact 24 and signal terminal 19, and the connection method between power supply contact 25 and power supply terminal 20. In other embodiments, signal contact 24 and signal terminal 19, and power supply contact 25 and power supply terminal 20 can also be connected by wireless transmission communication.

[0041] Example 3

[0042] During the gate closing process, the gate body 2 is lowered by the elevator 14. Before the gate body 2 falls to the preset position, the controller 15 controls the sealing end cover to be in a sealed state. When the sealing end cover is in a sealed state, the contact frame 7 is completely located inside the tube body 11, and at the same time, the elastic element 12 is in a compressed state.

[0043] When the gate body 2 falls to near the preset position under the action of the elevator 14, the controller 15 opens the sealing cover 9, and the elastic element 12 applies a force to the contact frame 7 to move towards the gate body 2; the signal contact 24 and the power supply contact 25 of the contact frame 7 will move towards the gate body 2, the signal contact 24 enters the conical opening structure of the signal end 19 below the signal guide groove, and the power supply contact 25 enters the conical opening structure of the power supply end 20 below the power supply guide groove; and the signal contact 24 moves along the signal guide groove, and the power supply contact 25 moves along the power supply guide groove until the gate body 2 falls to the preset position; the signal contact 24 is successfully inserted into the signal end 19 above the signal guide groove, and the power supply contact 25 is successfully inserted into the power supply end 20 above the power supply guide groove. At the same time, the partition slot 26 is engaged with the insulating pad 17 to complete the gate closing action;

[0044] During the dam construction, impoundment, and operation, the remote control room remotely controls controller 15 based on data from the water pressure detection probe. The specific control steps are as follows:

[0045] When water needs to be replenished, the controller 15 will send a signal to open the first opening and closing part 5 and the second opening and closing part 6 in sequence to supply water to the outside. The water flow can also be controlled by the first opening and closing part 5 and the second opening and closing part 6.

[0046] When no water replenishment is needed, the controller 15 sends a signal to close the first opening and closing element 5 and the second opening and closing element 6;

[0047] In extreme cases, if the remote control function of the first opening and closing component 5 and the second opening and closing component 6 is damaged, and it is necessary to open the first opening and closing component 5 and the second opening and closing component 6, personnel will enter through the diversion tunnel 8 and manually open the first opening and closing component 5 and the second opening and closing component 6 after reaching them.

[0048] This innovative method effectively solves the problem of downstream water replenishment, and has the advantages of economy and timeliness. This method can not only be applied to the corresponding supporting equipment, but also to other gates that are not supported by this patent. After the gate is modified, this method can be used. Therefore, this method has a wider range of applications and adaptability than the equipment.

[0049] The gate water replenishment device provided by the present invention has the following advantages: (1) It innovatively adopts the method of setting ecological water replenishment holes on the gate body of the diversion tunnel, which solves the problem of large resource investment and long time consumption in the traditional ecological water replenishment method of drilling a side hole or setting a special ecological water replenishment pipe next to the diversion tunnel, and ensures the continuity and convenience of ecological water replenishment and gate closing work; (2) Through the unique structural design and the reliable design of "three-in-one" (remote control, water pressure detection control and manual control) for valve closing, it solves the problem of difficult water supply valve closing, reduces the risk of water replenishment hole valve not being able to close effectively, and ensures the safety and reliability of ecological water replenishment hole operation; (3) High degree of automation: By setting a water pressure detection probe inside the water supply hole pipe, the water pressure is detected in real time and the data is transmitted to the control switch connected to the control valve opening and closing device. When the water pressure reaches the set value, the automatic closing is achieved; (4) The equipment has a simple structure and strong versatility. Except for the downstream ecological water supply during the water storage stage of the hydropower station, this water supply device can be used during the lowering or operation of other types of gates if there is a need to supply water downstream; (5) Low equipment cost and low resource investment: The design of this water supply device can be completed at the beginning of the gate design. It can be installed in the gate installation and diversion tunnel construction process in the later stage without additional work.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A gate replenishment control method, characterized by, The application relates to a gate body and a remote control system thereof. The lower part (16) of the gate body is provided with an ecological water supplement channel (23), and the ecological water supplement channel (23) is provided with a first opening and closing member (5) and a second opening and closing member (6); During the closing of the gate, the gate body (2) is controlled to descend by the elevator (14), and the controller (15) controls the sealing cover plate (9) to be in a sealing state before the gate body (2) falls to a preset position; when the sealing cover plate (9) is in the sealing state, the contact frame (7) is completely located in the pipe body (11), and the elastic member (12) is in a compressed state; When the gate body (2) falls to the vicinity of the preset position under the action of the elevator (14), the controller (15) opens the sealing cover plate (9), and the elastic member (12) applies a force to the contact frame (7) to move towards the gate body (2); the signal contact (24) and the power supply contact (25) of the contact frame (7) move towards the gate body (2), the signal contact (24) enters the conical opening structure of the signal end (19) below the signal guide groove, and the power supply contact (25) enters the conical opening structure of the power supply end (20) below the power supply guide groove; and the signal contact (24) moves along the signal guide groove, and the power supply contact (25) moves along the power supply guide groove until the gate body (2) falls to the preset position; the signal contact (24) is successfully inserted with the signal end (19) above the signal guide groove, and the power supply contact (25) is successfully inserted with the power supply end (20) above the power supply guide groove, and meanwhile, the partition plate clamping groove (26) is clamped with the insulating pad (17) to complete the gate closing action; During the dam construction, the gate storage water and the operation process, the remote control room controls the controller (15) according to the data of the water pressure detection probe, and the specific control steps are as follows: When water needs to be supplemented, the controller (15) sends a signal to open the first opening and closing member (5) and the second opening and closing member (6) to supply water outward, and the water flow can also be controlled through the first opening and closing member (5) and the second opening and closing member (6); When water does not need to be supplemented, the controller (15) sends a signal to close the first opening and closing member (5) and the second opening and closing member (6); When the remote control function of the first opening and closing member (5) and the second opening and closing member (6) is damaged, personnel can enter along the diversion tunnel (8) when the first opening and closing member (5) and the second opening and closing member (6) need to be opened, and manually open the first opening and closing member (5) and the second opening and closing member (6) after reaching the first opening and closing member (5) and the second opening and closing member (6).

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