Cable arrangement structure of hydroelectric generator

Abstract

The utility model relates to the technical field of hydropower station cable laying, and discloses a hydroelectric generator cable arrangement structure, which comprises a frame body and three wire pressing plates which are annularly and uniformly arranged, and three grooves which are annularly and uniformly arranged are arranged in the frame body. A groove is formed in the frame body, no less than one trapezoidal supporting groove which is uniformly distributed is formed in each of two sides of the groove in the frame body, a slot is formed in each of the lower ends of the groove in the frame body, the wire pressing plate comprises an insertion plate matched with the slot, the insertion plate is detachably connected with the slot, an embedded plate matched with the groove is fixedly connected to the upper end of the insertion plate, and the lower end of the embedded plate is fixedly connected with the wire pressing plate. And no less than one trapezoidal clamping groove which is matched with the trapezoidal supporting groove and is relatively and uniformly arranged is formed in each embedded plate. Compared with the prior art, the utility model has the advantage that three kinds of cables can be conveniently laid in a smaller space.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying in hydropower stations, and particularly refers to a cable arrangement structure for a hydraulic generator. Background Art

[0002] The hydraulic generator is an important component of a hydropower station. When the water flow introduced into the hydropower station passes through the water turbine, the water energy is converted into mechanical energy that drives the machine to rotate. The hydraulic generator can convert this mechanical energy into electrical energy for output. In a hydropower station, multiple water turbines and supporting hydraulic generators are provided. Therefore, a large number of cables used for transmitting electrical energy are required. The hydropower cables are the main tools for transmitting electrical energy in the hydropower station, mainly used to send the electrical energy generated by the generator set to the substation for voltage transformation and boosting.

[0003] Currently, when laying cables, power cables, communication cables, and control cables need to be laid in the hydropower station, and these three types of cables should be laid separately for later operation and maintenance. To ensure safety in use, a fire-resistant partition should also be installed between the power cable and the communication cable and control cable. To meet the above requirements, when actually laying these three types of cables, since the cable tray occupies a relatively wide space and is of a square structure, a large laying space is required to lay the three types of cables separately. Different types of cables are laid using different cable trays. When encountering a small available laying space, the current cable trays are not convenient for arranging these three types of cables in a small available space. Summary of the Utility Model

[0004] (1). Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is that when the currently used cable trays are used in a small space in a hydropower station, it is not convenient to separately lay and arrange the power cables, communication cables, and control cables, and the laying requirements of the above-mentioned hydropower station cables cannot be met.

[0006] (2). Technical Solutions

[0007] To solve the above technical problems, the technical solution provided by the utility model is: a cable arrangement structure for a hydraulic generator, including a frame body and three pressing plates arranged in a uniformly distributed circular shape. Three grooves arranged in a uniformly distributed circular shape are provided inside the frame body. On both sides of the grooves inside the frame body, there are provided at least one and uniformly arranged trapezoidal supporting grooves. Slots are provided at the lower ends of the grooves inside the frame body. The pressing plate includes an insertion plate that cooperates with the slot, and the insertion plate is detachably connected to the slot. An embedding plate that cooperates with the groove is fixedly connected to the upper end of the insertion plate. On the embedding plates, there are provided at least one and relatively uniformly arranged trapezoidal clamping grooves that cooperate with the trapezoidal supporting grooves.

[0008] As an improvement, connection holes II are provided in the plugboard, and connection holes I that cooperate with the connection holes II are provided on one side of the slot in the frame body.

[0009] As an improvement, the connection hole I and the connection hole II are connected by bolts in a threaded manner, and washers that cooperate with the bolts are adhesively attached to the periphery of the connection hole I on the frame body.

[0010] As an improvement, the diameter of the inscribed circle of the region surrounded by the trapezoidal bracket groove and the trapezoidal clamping groove is greater than the diameter of the cable.

[0011] As an improvement, fireproof partitions are provided inside the embedded plate and the frame body.

[0012] As an improvement, the frame body is fixedly installed at the erection position through the mounting holes and the mounting plate.

[0013] (III) Beneficial effects

[0014] The advantages of the present utility model compared with the prior art are as follows: The three cables are respectively placed in the trapezoidal bracket grooves in the three grooves, and then the pressing plate is installed on the frame body. The trapezoidal bracket groove can be used to cooperate with the trapezoidal clamping groove to limit each cable, so that different cables are separated. Only one frame body and three pressing plates are needed to organize the three cables, and the shape of the assembled state of the present utility model is approximately circular, which is convenient for laying cables in a smaller use space. Description of the drawings

[0015] Figure 1 is a schematic structural diagram of the frame body of a cable organizing structure of a hydraulic generator of the present utility model.

[0016] Figure 2 is a front view of the frame body of a cable organizing structure of a hydraulic generator of the present utility model.

[0017] Figure 3 is a schematic structural diagram of the pressing plate of a cable organizing structure of a hydraulic generator of the present utility model.

[0018] Figure 4 is an exploded view of a cable organizing structure of a hydraulic generator of the present utility model.

[0019] Figure 5 is a front view of the exploded state of a cable organizing structure of a hydraulic generator of the present utility model.

[0020] Figure 6 is a three-dimensional view of the assembled state of a cable organizing structure of a hydraulic generator of the present utility model.

[0021] Figure 7 is a schematic structural diagram of the frame body, the mounting plate and the mounting holes of a cable organizing structure of a hydraulic generator of the present utility model.

[0022] As shown in the figure: 1. Frame body; 2. Groove; 3. Trapezoidal bracket; 4. Slot; 5. First connection hole; 6. Embedded plate; 7. Trapezoidal clamping groove; 8. Insertion plate; 9. Second connection hole; 10. Cable pressing plate. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Embodiment 1

[0025] As Figure 1 , Figure 2 and Figure 7 shown, a cable arrangement structure for a hydraulic generator includes a frame body 1 and three cable pressing plates 10 arranged in a uniformly distributed ring shape. As Figure 7 , the frame body 1 is fixedly installed at the installation position through installation holes and installation plates. Three grooves 2 arranged in a uniformly distributed ring shape are provided inside the frame body 1. On both sides of the grooves 2 inside the frame body 1, there are provided not less than one and uniformly distributed trapezoidal brackets 3. Slots 4 are provided at the lower ends of the grooves 2 inside the frame body 1.

[0026] Through the above structure, three kinds of cables can be respectively placed in the trapezoidal brackets 3 in the three grooves 2. How to realize the limit separation of the cables is as follows:

[0027] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the cable pressing plate 10 includes an insertion plate 8 that cooperates with the slot 4. The insertion plate 8 is detachably connected to the slot 4. Second connection holes 9 are provided inside the insertion plate 8. On one side of the slot 4 inside the frame body 1, first connection holes 5 that cooperate with the second connection holes 9 are provided. The first connection holes 5 and the second connection holes 9 are connected by bolts in a threaded manner. Washers that cooperate with the bolts are adhesively connected to the periphery of the first connection holes 5 on the frame body 1. The washers can improve the stability when tightening the bolts. An embedded plate 6 that cooperates with the groove 2 is fixedly connected to the upper end of the insertion plate 8. On the embedded plate 6, there are provided not less than one and relatively uniformly distributed trapezoidal clamping grooves 7 that cooperate with the trapezoidal brackets 3.

[0028] Through the above structure, the cable pressing plate 10 is fixedly installed on the frame body 1, and the trapezoidal bracket 3 and the trapezoidal clamping groove 7 can enclose a closed area for limiting the cable.

[0029] Embodiment 2

[0030] As Figure 3 、 Figure 4 、 Figure 5 and Figure 6 shown, the diameter of the inscribed circle of the region surrounded by the trapezoidal bracket 3 and the trapezoidal clamping groove 7 is greater than the diameter of the cable. The frame body 1 and the pressure plate 10 with trapezoidal brackets 3 and trapezoidal clamping grooves 7 of different sizes can be produced according to actual requirements. Fireproof partitions are provided inside both the embedding plate 6 and the frame body 1.

[0031] With the above structure, the situation where the inner wall of the embedding plate 6 cannot fit with the inner wall of the groove 2 due to the too large diameter of the cable is avoided.

[0032] When the present utility model is specifically implemented, when three cables need to be laid in a relatively small space, first fix the frame body at the installation position of the space, fit the installation plate to the installation position, and use expansion screws to thread-connect the installation holes with this position. Then, place multiple cables of one of the types in the trapezoidal brackets in the same groove. After the placement is completed, take a pressure plate, insert the insertion plate into the insertion slot, and at the same time place the embedding plate in the groove. The surface of the embedding plate fits with the inner wall of the groove. At this time, the region surrounded by the corresponding trapezoidal clamping groove and the trapezoidal bracket can limit the cables within the region, and different cables can be separated from each other;

[0033] Repeat the above operations to lay the other two types of cables in the other two grooves respectively. After aligning the first connection hole and the second connection hole, use bolts to fix the pressure plate on the frame body. In this way, three cables can be laid in a relatively small space. The three cables are laid in separate zones, and there is a certain distance between each cable, which can play a role in isolating and organizing the three different cables.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to this process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0036] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the creation of the present invention, design similar structural forms and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A cable arrangement structure for a hydroelectric generator, characterized in that: The invention comprises a frame body (1) and three wire pressing plates (10) evenly arranged in a ring shape, wherein the frame body (1) is provided with three grooves (2) evenly arranged in a ring shape, and the frame body (1) is provided with at least one evenly arranged trapezoidal bracket (3) on both sides of the groove (2), and the frame body (1) is provided with a slot (4) at the lower end of the groove (2); The wire pressing plate (10) comprises an inserting plate (8) matched with the slot (4), the inserting plate (8) and the slot (4) are detachably connected, an embedding plate (6) matched with the groove (2) is fixedly connected to the upper end of the inserting plate (8), and the embedding plate (6) is provided with at least one relatively evenly arranged trapezoidal clamping groove (7) matched with the trapezoidal bracket (3).

2. A cable arrangement structure for a hydroelectric generator according to claim 1, characterized in that: The plug board (8) is provided with a second connection hole (9), and the frame (1) is provided with a first connection hole (5) on one side of the slot (4) that matches the second connection hole (9).

3. A cable arrangement structure for a hydroelectric generator according to claim 2, characterized in that: The connection hole one (5) and the connection hole two (9) are threadedly connected by bolts, and washers matching the bolts are adhered to the frame body (1) around the connection hole one (5).

4. A cable arrangement structure for a hydroelectric generator according to claim 1, characterized in that: The diameter of the inscribed circle of the area enclosed by the trapezoidal bracket (3) and the trapezoidal clamping groove (7) is greater than the diameter of the cable.

5. A cable arrangement structure for a hydroelectric generator according to claim 1, characterized in that: The embedded plate (6) and the frame (1) are both provided with fire-resistant partitions inside.

6. A cable arrangement structure for a hydroelectric generator according to claim 1, characterized in that: The frame (1) is fixedly mounted at the mounting position via mounting holes and a mounting plate.

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