Flexible arrangement method for layered water intake gate cable needing underwater power utilization

Abstract

The invention discloses a flexible arrangement method for cables of a layered water intake gate needing underwater electricity, and belongs to the technical field of plane gates. The flexible arrangement method comprises a cable lateral positioning device, a cable pressing plate, a cable clamping block, a cable drum, a cable well, a cable tensioning device and the like; a cable is locked in a cable lateral groove through a cable pressing plate, the cable is reversed through a cable drum to be connected with an electric appliance cabinet, and the cable is stored in a cable well in a U-shaped state with a certain allowance; when the gate needs to be lifted, the cable lateral positioning device is removed through operation on a top platform of the water inlet, the cable is in a free state, the cable tensioning device moves towards the bottom of the cable well along the groove while the cable drum rotates, so that the cable is lifted upwards and synchronously with the gate, and the cable is stored in the cable well after being reversed. The problems that a cable drum is large, the number of cable winding turns is large and the number of cable drums arranged in the vertical direction is large due to the fact that an existing layered water intake gate is located deep and a needed cable is long are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of plane gates, and in particular relates to a flexible arrangement method of cables for stratified water intake gates requiring underwater electricity. Background Art

[0002] As the country's requirements for ecological protection become increasingly higher, the water intake gates of many reservoir power stations are required to be able to select water bodies of appropriate temperature for power generation according to the water temperature conditions at different water depths, so as to avoid the damage to the balance of the downstream ecological environment after the discharge of low-temperature water or high-temperature water. The current mainstream hydropower station water intake gate still adopts the stacked beam gate structure, which can only take out the water retaining gate from top to bottom, so it can only take water from the surface layer to the bottom, which cannot meet the environmental protection requirements of taking water on demand at different depths. At the same time, there are many water intakes in large hydropower stations, and the operation (lifting the gate out of the orifice or putting it into the orifice) of one layer of stacked beam gates is more frequent, which is cumbersome and time-consuming. To solve this problem, there are currently some layered water intake gates with actuators arranged underwater, which have largely solved the above-mentioned problems of traditional layered water intake schemes, but at the same time brought new problems such as synchronous lifting and lowering of cables and gates, cable retracting and releasing structures, and cable storage methods.

[0003] Chinese patent, a stratified water intake gate, which is characterized by a gate similar to the working principle of the existing conventional butterfly valve, and the cable needs to be connected to the underwater single-stack gate. In this scheme, the cable arrangement and retraction adopts a similar arrangement scheme as the fixed winch hoist to lift the gate. This method will lead to unavoidable problems such as large cable drums, many cable windings, and many cable drums arranged in the vertical direction when the water intake depth of the stratified water intake gate is large and the cable length is long. It brings many difficulties to the manufacture of the drum, the design of the drum and the rack, the dam design and the dam top space layout, and affects the beauty of the dam top.

[0004] Chinese patent, an efficient and fast stepless stratified water intake gate device, which requires the cable to be connected to the underwater single-stack gate. This solution does not involve the specific cable layout and the synchronous retraction and release of the cable and the gate. Summary of the invention

[0005] The purpose of the present invention is to address the problems that the current stratified water intake gates are located at a deep position, the required cables are long, resulting in large cable drums, a large number of cable winding circles, and a large number of cable drums arranged in the vertical direction; to provide a cable arrangement method that is more friendly to dam design and dam top space arrangement, and proposes a flexible arrangement method for stratified water intake gate cables that require underwater electricity.

[0006] In order to solve the above technical problems, the present invention provides a flexible arrangement method for cables of stratified water intake gates that require underwater electricity. Several cable wells are arranged on the gate body, and the cable wells are arranged corresponding to the gate slot. An electrical cabinet is arranged at one end of the cable well away from the gate slot, and a cable reel is arranged at the other end. A cable lateral positioning device is arranged on the side of the door slot close to the cable well, and the cable lateral positioning device includes a cable pressure plate and a cable lateral groove. The cable lateral groove is arranged corresponding to the cable well, and the electrical cabinet is connected to one end of the cable, and the other end is laid along the cable lateral groove.

[0007] Preferably, grooves are correspondingly arranged on both sides of the cable well, and a cable tensioning device is mounted on the grooves.

[0008] Preferably, the cable tensioning device slides along the groove, and different slider materials are selected at both ends of the cable tensioning device to adjust the friction between the cable tensioning device and the cable well. In addition, an elastic support can be provided under the slider, and the V-shaped groove can be matched to achieve different compression amounts at different heights, so that the tensioning device can achieve the friction required by the design at different heights.

[0009] Preferably, a rotating shaft is provided on one side of the cable lateral groove, and the rotating shaft is fixed by an embedded part in the door groove concrete. A cable pressing plate is connected to the rotating shaft, and the cable in the cable lateral groove is limited by the cable pressing plate, and corresponding cable clamps are provided on the inner side of the cable pressing plate close to the cable and on the cable lateral groove.

[0010] Preferably, baffle structures are provided at both ends of the cable reel, and circular holes are evenly distributed on the baffle structures.

[0011] Preferably, the cable pressing plates are arranged at intervals on the cable lateral grooves along the laying of the cables.

[0012] Preferably, the number of cable wells, the number of cables, the depth of the cable wells and the number of cable drums are designed according to specific engineering requirements.

[0013] Preferably, the cable is locked into the cable lateral groove by a cable pressure plate, and a cable clamp is provided in the cable lateral groove; the cable is connected to the electrical cabinet after the cable reel is reversed, and is stored in the cable well in a U-shaped state with a certain margin; in order to prevent the cable from being entangled and provide a certain friction force to the cable reel, when the gate needs to be lifted, the cable lateral positioning device is released on the platform at the top of the water inlet, and the cable is in a free state. While the cable reel rotates, the cable tensioning device moves along the groove to the bottom of the cable well, so that the cable is lifted upward synchronously with the gate, and is stored in the cable well after reversing.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The cable of this scheme is locked into the cable lateral groove by the cable pressure plate, and a cable clamp is provided in the cable lateral groove; the cable is connected to the electrical cabinet after the cable reel is reversed, and a certain margin is stored in the cable well in a U-shaped state; in order to prevent the cable from being entangled and provide a certain friction force to the cable reel, when the gate needs to be lifted, the cable lateral positioning device is released on the platform at the top of the water inlet, and the cable is in a free state. While the cable reel rotates, the cable tensioning device moves along the groove to the bottom of the cable well, so that the cable is lifted upward synchronously with the gate, and is stored in the cable well after reversing.

[0015] 2. Compared with the prior art, this solution can be equipped with a cable reel that does not need to increase in size with the length of the cable. The current arrangement method adopts a rigid storage method of winding the cable through the reel in multiple layers through tensioning. This method will lead to unavoidable problems such as large cable reels, many cable winding circles, and a large number of cable reels arranged in the vertical direction when the water intake depth of the stratified water intake gate is large and the cable length is long. It brings many difficulties to the manufacture of the reel, the design of the reel and the rack, the design of the dam and the layout of the dam top space, etc., and solves the problem that the cable cannot be manufactured or arranged when the water intake depth of the stratified water intake gate is large.

[0016] 3. This scheme proposes a flexible arrangement method for the cable of the stratified water-intake gate that requires underwater electricity. In terms of innovation, this structural method is different from the existing rigid winding method and is not limited by the cable length. It greatly reduces the size of the cable arrangement structure and solves the problem of cable arrangement of the stratified water-intake gate. In terms of economy, the opening and closing capacity of the transmission structure required by this structural method is small, and the additional civil engineering frame structure is eliminated. The groove can save the amount of civil engineering concrete and steel bars. In terms of feasibility, the depth of the cable well in this structural method can be only half of the depth of the gate groove, without design and construction difficulties, without large civil engineering frame design, large drum design and manufacturing, reducing the difficulty of arranging the stratified water-intake gate cable, which is a new facility for traditional hydropower projects, in the compact dam top space. In terms of safety, the cable fixing structure of this scheme solves the dangerous situation that underwater cable winding, water flow impact, deadweight pulling, etc. may cause cable damage or breakage.

[0017] 4. This solution provides a cable clamp block with a guiding function that forms a heart-shaped opening after alignment and closing, so as to compress the cable within the allowable deformation range of the cable. While fixing the cable, it prevents the cable from being excessively stretched due to its own weight, thereby avoiding damage to the cable caused by excessive length and excessive weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts.

[0019] Figure 1 It is a front view of the overall structure of the present invention; Figure 2 It is a side view of the overall structure of the present invention; Figure 3 A top view of the overall structure of the present invention; Figure 4 It is a schematic diagram of the cable clamp block of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the cable reel of the present invention; Figure 6 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the cable tensioning device of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the cable lateral positioning device of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Cable; 2. Cable lateral positioning device; 2.1. Cable pressure plate; 2.2. Cable lateral groove; 2.3. Cable clamp; 3. Cable reel; 4. Cable well; 4.1. Cable tensioning device; 5. Electrical cabinet. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation method described herein is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Example 1: Figure 1 - Figure 8As shown, in the first aspect, a flexible arrangement method for cables of stratified water-intake gates requiring underwater electricity is proposed, including: In order to solve the above technical problems, the present invention provides a flexible arrangement method for cables of stratified water-intake gates requiring underwater electricity. A plurality of cable wells 4 are arranged on the gate body, and the cable wells 4 are arranged corresponding to the gate groove. An electrical cabinet 5 is arranged at one end of the cable well 4 away from the gate groove, and a cable reel 3 is arranged at the other end. A cable lateral positioning device 2 is arranged on one side of the door groove close to the cable well 4, and the cable lateral positioning device 2 includes a cable pressure plate 2.1 and a cable lateral groove 2.2. The cable lateral groove 2.2 is arranged corresponding to the cable well 4. The electrical cabinet 5 is connected to one end of the cable 1, and the other end is laid along the cable lateral groove 2.2.

[0023] This scheme proposes a flexible arrangement method for cables of stratified water gates that require underwater electricity. In terms of innovation, this structural method is different from the existing rigid winding method and is not limited by the length of the cable. It greatly reduces the size of the cable arrangement structure and solves the problem of cable arrangement of stratified water gates. In terms of economy, this structural method requires a small opening and closing capacity of the transmission structure, eliminates the additional civil engineering frame structure, and the groove can save the amount of civil engineering concrete and steel bars. In terms of feasibility, the depth of the cable well in this structural method can be only half of the depth of the gate groove, without design and construction difficulties, without large civil engineering frame design, large drum design and manufacturing, and reducing the difficulty of arranging stratified water gate cables, which are new facilities for traditional hydropower projects, in the compact dam top space. In terms of safety, the cable fixing structure of this scheme solves the dangerous situations that underwater cable winding, water flow impact, self-weight pulling, etc. can cause cable damage or breakage.

[0024] Among them, a groove is provided on the cable reel 3. It should be noted that, unlike the spiral groove of the wire rope reel in the prior art, the groove here is evenly distributed annular groove. Each bundle of cables 1 is placed in the groove above the cable reel 3 (the number of cables in each bundle is related to the number of gate stacks that need to be opened and closed at the same time). There is no need to wrap around the cable reel 3. By selecting different groove surface materials and roughness to control the friction between it and the cable, the power device (motor) on the side is used to rotate the cable reel 3 to achieve the rise or fall of the cable 1.

[0025] Specifically, grooves are correspondingly arranged on both sides of the cable well 4, and the cable tensioning devices 4.1 are clamped on the grooves.

[0026] In this embodiment, on the left and right sides of the gate slot ( Figure 1 Only a schematic diagram of one side) is provided with a cable well 4 and an openable cable fixing device, a cable reel 3 is provided at the top of the gate slot (the top of the dam or a small platform recessed under the top of the dam), and a groove is provided at the top of the dam for storing cables, such as Figure 3 and Figure 6 As shown, the opening of the cable well 4 is larger for the sake of convenience in display, but is actually very small and matches the diameter of the cable 1.

[0027] Specifically, the cable tensioning device 4.1 slides along the grooves on both sides of the cable well 4, and different slider materials are selected at both ends of the cable tensioning device 4.1 to adjust the friction between the cable tensioning device 4.1 and the cable well 4.

[0028] In this embodiment, sliders can be set at both ends of the cable tensioning device 4.1 to contact and limit the cable well 4. The friction between the slider and the cable well 4 can be adjusted by selecting different slider materials. The cable 1 passes through the bottom of the cable tensioning device 4.1. When the cable 1 cooperates with the gate to descend, the cable 1 here lifts the cable tensioning device 4.1 up. When the cable 1 cooperates with the gate to rise, the cable tensioning device 4.1 cooperates with the cable reel 3 to orderly store the retracted cable 1 back to the cable well 4. In addition, baffle structures are also set at both ends of the cable reel 3. Round holes are evenly arranged on the baffle structure, which is convenient for operation when needed or for maintenance and replacement. It is locked to the top of the platform through a locking shaft, and the cable does not need to bear its own weight.

[0029] Specifically, a rotating shaft is provided on one side of the cable lateral groove 2.2, and the rotating shaft is fixed by an embedded part in the door groove concrete. A cable pressing plate 2.1 is connected to the rotating shaft, and the cable 1 in the cable lateral groove 2.2 is limited by the cable pressing plate 2.1, and a corresponding cable clamp block 2.3 is provided on the inner side of the cable pressing plate 2.1 close to the cable 1 and on the cable lateral groove 2.2, such as Figure 4 shown.

[0030] Specifically, the cable pressing plates 2.1 are arranged at intervals on the cable lateral grooves 2.2 along the laying of the cables 1. The number of cable wells 4, the number of cables 1, the depth of the cable wells 4 and the number of cable drums 3 are designed according to specific engineering requirements.

[0031] Specifically, the cable 1 is locked into the cable lateral groove 2.2 by a cable pressing plate 2.1, and a cable clamp 2.3 is provided; the cable 1 is connected to the electrical cabinet 5 through the cable reel 3, and is stored in the cable well 4 in a U-shaped state with a certain margin; in order to prevent the cable 1 from being entangled and to provide a certain friction force to the cable reel 3, when the gate needs to be lifted, the cable lateral positioning device 2 is released on the top platform of the water inlet, and the cable 1 is in a free state. While the cable reel 3 rotates, the cable tensioning device 4.1 moves along the groove to the bottom of the cable well 4 to lift the cable 1 upward synchronously with the gate, and is stored in the cable well 4 after reversing.

[0032] Compared with the prior art, this solution can set up a cable drum that does not need to increase in size with the length of the cable. The current arrangement method adopts a rigid storage method of winding the cable through the drum in multiple layers through tensioning. This method will lead to unavoidable problems such as large cable drum, large number of cable winding circles, and large number of cable drums arranged in the vertical direction when the water intake depth of the stratified water intake gate is large and the cable length is long. It brings many difficulties to the manufacture of the drum, the design of the drum and the rack, the design of the dam and the layout of the dam top space. This solution solves the problem that the above method cannot manufacture or arrange the cable when the water intake depth of the stratified water intake gate is large.

[0033] Example 2: Figure 5 - Figure 8 As shown, a flexible arrangement method for cables of stratified water intake gates requiring underwater electricity is shown; after installation, the gate is in a water-blocking state in an underwater gate groove, and the working principle of this solution is explained by taking the cable 1 connected to the gate as an example.

[0034] The cable 1 is connected to the gate, and the cable 1 is pressed into the cable lateral groove 2.2 through the cable pressure plate 2.1 (the cable pressure plate 2.1 can be rotated through the end rotating shaft to switch between the locked and compressed state and the free open free state). In order to prevent the cable 1 from being damaged, reduce the blocking of the cable 1 when the cable pressure plate 2.1 is closed, and provide a certain support force for the cable 1 to resist its own gravity, so as to prevent the cable 1 from being damaged due to excessive stretching due to its own weight when the cable 1 is long, a cable clamp block 2.3 is provided. The cable clamp block 2.3 is a pair of mutually cooperating and half-separated structures, one half is installed in the cable lateral groove 2.2, and the other half is installed in the cable pressure plate 2.1; when the cable pressure plate 2.1 is opened, the cable 1 is in the automatic state, and the cable reel 3 is driven to rotate by the motor, and the gate can begin to rise to the top elevation of the water inlet platform, and the cable 1 is transmitted from the gate groove to the cable well 4, and the cable operation is synchronized with the gate lifting.

[0035] The cable 1 is connected to the electrical cabinet 5 after the cable drum 3 is reversed, and a certain amount of cable is stored in the cable well 4 in a U-shaped state. In order to prevent the cable 1 from being entangled and to provide a certain friction force to the cable drum 3, a cable tensioning device 4.1 is provided in the cable well 4. When the gate needs to be lifted, the cable lateral locking device 2 is released on the top platform of the water inlet, and the cable 1 is free. While the cable drum 3 rotates, the cable tensioning device 4.1 moves along the groove to the bottom of the cable well 4, so that the cable 1 is lifted upward synchronously with the gate, and enters the cable well 4 after reversing.

[0036] A rotating shaft is arranged at one end of the cable lateral groove 2.2, and the rotating shaft is fixed by embedded parts in the concrete of the door groove. The rotating shaft is connected to the pressing plate cable pressing plate 2.1, and a handle is arranged on the top of the rotating shaft. The rotating shaft is controlled by turning the handle to drive the cable pressing plate 2.1 to rotate. The handle can realize the electric control of the opening and closing of the cable pressing plate 2.1 by connecting the motor.

[0037] Among them, a cable tensioning device 4.1 is provided in the cable well 4, and grooves are provided on the drum of the cable tensioning device 4.1. Each cable is arranged in the corresponding groove, so that the cable 1 is orderly and not tangled. As the portion of the cable 1 entering the cable well 4 increases, the self-weight of the cable 1 on the side of the cable well 4 increases, and V-shaped grooves are provided on both sides of the cable tensioning device 4.1 (here, elastic support is provided under the slider, and the V-shaped groove is matched. Different compression amounts correspond to different heights, so that the tensioning device can achieve the friction force according to the design requirements at different heights), so that when the length of the cable 1 on the side of the cable well 4 increases to a certain value, the cable tensioning device 4.1 can be stuck in the V-shaped groove and no longer descend with the cable 1, and the cable 1 at the cable drum 3 is tensioned by the self-weight of the cable 1 to prevent excessive tension. In addition, a structure similar to the cable clamp block 2.3 can also be used to replace the reel-type cable tensioning device 4.1. The diameter of the cable through hole in the middle of the cable clamp block 2.3 is larger than the cable diameter, so that the cable 1 can move freely in the through hole. The cable clamp block 2.3 can be lifted or lowered by a small lifting mechanism arranged at the top of the water inlet.

[0038] When the gate is lifted into place and the cable is put into place, the cable reel 3 is provided with a cable locking structure to fix the cable. The process of the cable 1 entering the gate slot along with the gate is the opposite of this process. The cable locking structure on the cable reel 3 is opened, and the motor of the cable reel 3 makes the cable reel 3 reverse. After the gate and the cable are in place, the cable pressure plate 2.1 is closed.

[0039] The above specific embodiments are preferred embodiments of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the present specific embodiments. All equivalent changes made in accordance with the shape, structure, and method of the present invention are within the protection scope of the present invention.

Claims

1. A flexible arrangement method for cables of stratified water intake gates requiring underwater electricity, characterized in that: A plurality of cable wells (4) are arranged on the gate body, the cable wells (4) being arranged corresponding to the gate groove, an electrical cabinet (5) being arranged at one end of the cable well (4) away from the gate groove, a cable reel (3) being arranged at the other end, a cable lateral positioning device (2) being arranged on the side of the gate groove close to the cable well (4), the cable lateral positioning device (2) comprising a cable pressing plate (2.1) and a cable lateral groove (2.2), the cable lateral groove (2.2) being arranged corresponding to the cable well (4), the electrical cabinet (5) being connected to one end of the cable (1), and the other end being laid along the cable lateral groove (2.2).

2. A flexible arrangement method for stratified water intake gate cables requiring underwater electricity according to claim 1, characterized in that: Grooves are correspondingly arranged on both sides of the cable well (4), and a cable tensioning device (4.1) is clamped on the groove.

3. A flexible arrangement method for underwater electricity-demanding stratified water intake gate cables according to claim 2, characterized in that: The cable tensioning device (4.1) slides along the groove, and different slider materials are selected at both ends of the cable tensioning device (4.1) to adjust the friction between the cable tensioning device (4.1) and the cable well (4).

4. A flexible arrangement method for cables for stratified water intake gates requiring underwater electricity according to claim 1, characterized in that: A rotating shaft is provided on one side of the cable lateral groove (2.2), the rotating shaft being fixed by means of a pre-embedded part in the door groove concrete, the rotating shaft being connected to a cable pressing plate (2.1), the cable (1) in the cable lateral groove (2.2) being limited by the cable pressing plate (2.1), and a corresponding cable clamping block (2.3) being provided on the inner side of the cable pressing plate (2.1) close to the cable (1) and on the cable lateral groove (2.2).

5. The flexible arrangement method of the stratified water intake gate cable requiring underwater electricity according to claim 1 is characterized in that: Baffle structures are provided at both ends of the cable reel (3), and circular holes are evenly distributed on the baffle structures.

6. A flexible arrangement method for cables of stratified water intake gates requiring underwater electricity according to claim 4, characterized in that: The cable pressing plates (2.1) are arranged at intervals on the cable lateral grooves (2.2) along the laying of the cable (1).

7. The flexible arrangement method of the stratified water intake gate cable requiring underwater electricity according to claim 1 is characterized in that: The number of cable wells (4), the number of cables (1), the depth of the cable wells (4) and the number of cable drums (3) are designed according to specific engineering requirements.

8. The flexible arrangement method of the cable for the stratified water intake gate requiring underwater electricity according to claim 1 is characterized in that: The cable (1) is locked into the cable lateral groove (2.2) by means of a cable pressure plate (2.1), and a cable clamp block (2.3) is provided in the cable lateral groove (2.2); the cable (1) is connected to the electrical cabinet (5) through the cable reel (3) and is stored in the cable well (4) in a U-shaped state with a certain margin; in order to prevent the cable (1) from being entangled and to provide a certain friction force to the cable reel (3), when the gate needs to be lifted, the cable lateral positioning device (2) is released by operating on the platform at the top of the water inlet, and the cable (1) is in a free state. While the cable reel (3) rotates, the cable tensioning device (4.1) moves along the groove toward the bottom of the cable well (4), so that the cable (1) is lifted upward synchronously with the gate and is stored in the cable well (4) after being reversed.

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