Top cover drainage floater support convenient to disassemble, assemble and adjust position

Abstract

The utility model discloses a top cover drainage floater support convenient to disassemble, assemble and adjust in position, and aims to solve the problems that an existing top cover drainage floater support is fixed in installation position, inconvenient to disassemble and assemble and difficult to meet different installation requirements. The support structure comprises a fixed support, movable supports and a junction box, the movable supports can slide along the fixed support and are fixed at preset positions, and the junction box is installed between the movable supports and used for binding a steel wire rope of a top cover drainage floater. The device is convenient to disassemble, assemble and adjust the position, the flexibility and accuracy of installation are improved, and the device is suitable for top cover drainage floaters of various types and sizes; according to the utility model, the maintenance efficiency and the operation reliability of the top cover drainage system of the hydroelectric generating set of the hydropower station are obviously improved; the modular design of the support facilitates quick replacement of fault parts, and the maintenance cost is reduced; due to the innovative structural design, the overall stability and safety of the system are improved, and a powerful guarantee is provided for safe and efficient operation of the hydropower station.

Description

Technical Field

[0001] The utility model relates to the technical field of hydroelectric generator sets in hydropower stations, and particularly relates to a top cover drainage float bracket that can be disassembled, assembled and adjusted in position conveniently. Background Art

[0002] In the operation and management of hydropower stations, the safety and stability of hydroturbine units are of crucial importance. Especially during Class A and Class B maintenance of the units, all maintenance work needs to be carried out with precision to ensure the smooth operation in the follow-up. During this process, the top cover drainage float and its installation bracket, as key components for controlling the start and stop water levels of the top cover pump, their performance and the accuracy of the installation position are directly related to the normal operation and maintenance efficiency of the unit.

[0003] Currently, the top cover drainage float brackets widely used in hydropower stations are usually composed of several angle irons spliced together and fixed to the wall surface of the water guide layer in the turbine chamber by welding. Although this traditional design meets the basic functional requirements to a certain extent, many deficiencies have been exposed in actual operation.

[0004] The core structure of the traditional top cover drainage float bracket mainly includes a fixed part welded to the wall and a movable part for carrying the float. The fixed part is usually composed of U-shaped or L-shaped angle irons and is connected to the wall by welding to ensure the stability of the bracket. The movable part is designed according to the installation requirements of the float and is connected to the fixed part through fasteners such as screws and nuts to support and fix the float. When the water level changes, the float rises and falls accordingly, and its position change is transmitted to the control system through signals, thereby controlling the start and stop of the top cover pump.

[0005] Defects and deficiencies of the prior art:

[0006] 1) Inconvenient disassembly and assembly: Since the bracket is fixed to the wall by welding, when it is necessary to remove the top cover drainage float for maintenance, the entire bracket must be removed, which not only increases the work difficulty but also prolongs the maintenance time. In addition, welding operations are required during reinstallation, increasing the work complexity and safety hazards.

[0007] 2) Difficult position adjustment: Due to the limitation of the fixing method between the bracket and the wall, it is difficult to ensure the accuracy of the float position during reinstallation. If the installation position is slightly deviated, it may cause the float to be blocked or interfered with by surrounding objects and cannot act correctly, thereby affecting the start and stop control of the top cover pump.

[0008] 3) Safety and efficiency issues: Frequent welding operations not only increase the risk of safety accidents such as fires but also seriously affect the maintenance efficiency. At the same time, since the bracket or float is easily damaged during the disassembly and assembly process, the maintenance cost is increased.

[0009] 4) Limited applicability: Traditional brackets are usually only applicable to specific types of floats, with poor compatibility for new types of floats and difficulty in meeting diverse installation requirements.

[0010] In summary, the existing technologies have obvious deficiencies in terms of convenient disassembly and assembly, accuracy of position adjustment, safety, efficiency, and applicability. Therefore, there is an urgent need for a new type of top cover drainage float bracket to solve the above problems. Summary of the Utility Model

[0011] The technical problem to be solved by the present utility model is to provide a top cover drainage float bracket that is portable for disassembly, assembly, and position adjustment, and solves the problems of difficult disassembly and assembly of the top cover drainage float and its bracket and difficult position control in the prior art during the maintenance of the water turbine unit.

[0012] To solve the above technical problems, the technical solution adopted by the present utility model is: A top cover drainage float bracket that is portable for disassembly, assembly, and position adjustment, comprising: a fixed bracket, which is a group of short brackets, the inner side of which is fixedly installed on the wall of the water guide layer in the water turbine chamber, and a connection hole is arranged on the outer side; the movable bracket is detachably connected to the fixed bracket through the connection hole, the movable bracket is arranged in a cross shape, and comprises a group of vertical brackets and horizontal brackets that are perpendicularly installed together, a junction box is arranged between the movable brackets, a fixed base is arranged at the bottom of the junction box for binding the steel wire rope of the top cover drainage float, and cable inlets and outlets are arranged on both sides of the junction box for convenient wiring operation.

[0013] In a preferred solution, the inner side of the short bracket of the fixed bracket is rigidly fixed at a preset position on the wall of the water guide layer in the water turbine chamber to ensure the stability of the fixed bracket.

[0014] In a preferred solution, the movable bracket is in a cross shape structure, comprising a vertical bracket and a horizontal bracket. The vertical bracket is connected to the connection hole of the fixed bracket through self-tapping screws, and the horizontal bracket can slide along the vertical bracket and be fixed at a preset position to meet different installation requirements.

[0015] In a preferred solution, scale marks are arranged on both the horizontal bracket and the vertical bracket of the movable bracket for accurately recording the installation position of the horizontal bracket to ensure accuracy during reinstallation.

[0016] In a preferred solution, the fixed base of the junction box is provided with an adjustable fastening device to adapt to steel wire ropes of different diameters and ensure flexible and stable binding of the float.

[0017] In a preferred solution, a set of adjustment tools is also provided, which is used to adjust the position of the horizontal bracket of the movable bracket on the vertical bracket and fasten the horizontal bracket to a preset position to ensure convenient and accurate installation.

[0018] In a preferred embodiment, the movable bracket is designed such that it is applicable not only to traditional heavy-weight tied rope and bulb-tipped inverted float, but also, by adjusting the size and shape of the cross-shaped bracket, different types and sizes of top cover drainage floats can be installed, such as flexible top cover floats made of stainless steel pipes, magnetic flip plate top cover floats or sausage-shaped top cover floats, etc.

[0019] A top cover drainage float bracket provided by the utility model, which is portable for disassembly, assembly and position adjustment, has the following beneficial effects:

[0020] 1. The utility model solves the problems of disassembly and assembly of the top cover drainage float and its bracket during the overhaul of the water turbine unit, and ensures that the top cover drainage float can be accurately installed in the original position, thus effectively avoiding the problems of mutual interference or abnormal operation caused by position deviation of the float, and further ensuring that the top cover pump can be accurately started and stopped, and ensuring the safe operation of the hydropower station;

[0021] 2. The movable bracket and the fixed bracket of the utility model are connected by threads, which is convenient for quick disassembly and reinstallation when needed, without the need for hot cutting and rewelding, greatly improving the work efficiency;

[0022] 3. Compared with the traditional top cover drainage float bracket with a fixed installation position and inconvenient disassembly and assembly, this solution introduces the concept of a movable bracket, enabling the installation position of the bracket to be flexibly adjusted according to actual needs, greatly improving the convenience and adaptability of use;

[0023] 4. The design of the movable bracket of the utility model allows the horizontal bracket to slide on the vertical bracket and be fixed at a preset position. This design not only increases the flexibility of bracket installation, but also ensures the accuracy during reinstallation, reducing problems caused by improper installation positions;

[0024] 5. The bracket of the utility model is applicable not only to traditional heavy-weight tied rope and bulb-tipped inverted float, but also, by adjusting the size and shape of the cross-shaped bracket, different types and sizes of top cover drainage floats can be installed, such as flexible top cover floats made of stainless steel pipes, magnetic flip plate top cover floats or sausage-shaped top cover floats, etc., enhancing its versatility and market application value;

[0025] 6. The design of the junction box of the utility model makes the binding of the steel wire rope more stable, and the setting of the cable inlet and outlet is convenient for wiring operation, further enhancing the functionality and practicality of the entire bracket;

[0026] 7. The horizontal bracket of the movable bracket provided by the utility model can move flexibly on the vertical bracket and is accurately positioned by a scale, ensuring that it can be restored to the original position during reinstallation, and can be finely adjusted according to the on-site situation to avoid mutual interference or abnormal operation of the floats;

[0027] 8. During the unit maintenance of the present utility model, only the movable support needs to be removed, and the fixed support can be retained on the wall without removal, effectively reducing the maintenance workload and time cost. At the same time, it also improves the work efficiency and maintenance quality, ensuring the safe and stable operation of the hydroelectric turbine unit of the hydropower station;

[0028] 9. The technical solution of the present utility model realizes the rapid, convenient disassembly and assembly and precise position adjustment of the top cover drainage float support, not only improving the maintenance efficiency, but also ensuring the stability and reliability of the equipment operation; at the same time, this technical solution also takes into account the versatility and flexibility of the support, and can adapt to various types of top cover drainage floats to meet the actual needs of different hydropower stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0030] Figure 1 is the overall structural schematic diagram of the present utility model;

[0031] Figure 2 is the structural schematic diagram of the fixed support of the present utility model;

[0032] Figure 3 is the structural schematic diagram of the movable support of the present utility model;

[0033] Figure 4 is the structural schematic diagram of the junction box of the present utility model;

[0034] In the figure: fixed support 1, movable support 2, junction box 3, short support 11, connection hole 12, vertical support 21, movable support 22, fixed base 31, fastening device 32. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following further describes the technical solutions in the present utility model in conjunction with the drawings and embodiments:

[0036] Embodiment 1

[0037] As Figures 1 to 4 shown, a top cover drainage float support with portable disassembly, assembly and position adjustment includes: the fixed support 1 is a group of short supports 11, the inner side of which is fixed on the wall of the water guide layer of the turbine room, and the outer side is provided with a connection hole 12. The movable support 2 is detachably connected to the fixed support 1 through the connection hole 12. The movable support 2 is arranged in a cross shape and includes a group of vertical supports 21 and horizontal supports 22 that are perpendicularly installed together. A junction box 3 is arranged between the movable supports 2. The bottom of the junction box 3 is provided with a fixed base 31 for binding the steel wire rope of the top cover drainage float. Cable inlets and outlets are provided on both sides of the junction box for convenient wiring operation.

[0038] In this embodiment, the inner side of the short bracket 11 of the fixed bracket 1 is rigidly fixed at a preset position on the wall of the water guide layer in the waterwheel chamber to ensure the stability of the fixed bracket 1.

[0039] Furthermore, the movable bracket 2 is in a cross-shaped structure, including a vertical bracket 21 and a horizontal bracket 22. The vertical bracket 21 is connected to the connection hole 12 of the fixed bracket 1 through a self-tapping screw, and the horizontal bracket 22 can slide along the vertical bracket 21 and be fixed at a preset position to meet different installation requirements.

[0040] Furthermore, scales are provided on both the horizontal bracket 22 and the vertical bracket 21 of the movable bracket 2 for accurately recording the installation position of the horizontal bracket 22 to ensure accuracy during reinstallation.

[0041] Furthermore, the fixed base 31 of the junction box 3 is provided with an adjustable fastening device 32 to adapt to wire ropes of different diameters and ensure flexible and stable binding of the float.

[0042] Furthermore, a set of adjustment tools is provided. This tool is used to adjust the position of the horizontal bracket 22 of the movable bracket 2 on the vertical bracket 21 and fasten the horizontal bracket 22 to the preset position to ensure convenient and accurate installation.

[0043] Furthermore, the design of the movable bracket 2 enables it to be applicable not only to traditional heavy hammer bundled pull rope bulb flipping type floats, but also to install different types and sizes of top cover drainage floats by adjusting the size and shape of the cross-shaped bracket, such as stainless steel pipe flexible top cover floats, magnetic flip plate top cover floats, or sausage type top cover floats, etc.

[0044] During specific use, after all components of a portable disassembly, assembly, and position adjustment type top cover drainage float bracket are inspected and qualified, the fixed bracket 1 is fixed on the wall of the water guide layer in the waterwheel chamber. The movable bracket 2 and the junction box 3 are respectively assembled into components. According to the specific type and size of the float, a suitable fixing method is selected and fixed to the junction box 3. Then, the junction box 3 is fixed between the movable brackets 2. Then, through the outer connection hole 12, the fixed bracket 1 and the movable bracket 2 are installed and fixed into one body by using self-tapping screws. Adjust the movable bracket 2 to ensure that the float can be stably and reliably fixed on the bracket and can act correctly when reaching the action water level.

[0045] Embodiment 2

[0046] In another preferred embodiment, on the basis of Embodiment 1, as Figures 1 to 4 shown, the specific structure and its assembly process of the top cover drainage float bracket of the present utility model are described in detail.

[0047] 1. Installation of the fixed bracket 1:

[0048] The fixed support 1 is composed of a group of short supports 11. The inner side of each short support 11 is welded to the wall of the water guide layer in the waterwheel chamber, serving as the fixed part of the entire support system. Holes are drilled on the outer side of the short support 11 for installing self-tapping screws to connect with the movable support 2. After the fixed support 11 is welded, it can be retained on the wall of the water guide layer during Class A and Class B maintenance of the unit without being removed, thus not affecting the maintenance work of the unit.

[0049] 2. Assembly of the movable support 2:

[0050] The movable support 2 is an operable cross-shaped support, composed of two vertical angle irons and two horizontal angle irons. The vertical angle irons are connected and fixed to the fixed support 1 by self-tapping screws. The horizontal angle irons are placed horizontally on the vertical angle irons and fixed by screws and nuts. The design of the cross-shaped support enables the horizontal support 22 to move back and forth and left and right on the vertical support 21 to adapt to different installation requirements. Scales are marked on both the horizontal support 22 and the vertical support 21 to record the installation position of the horizontal support 22 in detail and ensure the accuracy during reinstallation.

[0051] 3. Installation of the junction box 3:

[0052] The junction box 3 is installed between the movable supports 2, and holes are drilled on the supports for fixing the junction box 3. A fixed base 31 is provided at the bottom of the junction box 3 for binding the steel wire rope of the top cover drainage float. The design of the junction box 3 makes the wiring of the two sets of top cover drainage floats convenient, and the cables can enter from both sides of the junction box, improving the flexibility and convenience of wiring.

[0053] 4. Adjustment and fixation of the support:

[0054] After determining the position of the horizontal support 22, it is fixed to the vertical support 21 by screws and nuts. At this time, the distance between the two horizontal supports 22 can be adjusted as needed to avoid interference between the two top cover drainage floats due to being too close. At the same time, according to the scale on the support, the installation position of the horizontal support can be accurately recorded, facilitating reinstallation to the original position after maintenance.

[0055] 5. Installation and debugging of the float:

[0056] The top cover drainage float is bound to the fixed base at the bottom of the junction box by a steel wire rope and debugged. Ensure that the float can act correctly when reaching the action water level, thereby controlling the start and stop of the top cover pump.

[0057] Embodiment 3

[0058] In another preferred embodiment, based on Embodiments 1 and 2, as Figures 1 to 4As shown, in order to further demonstrate the diversity and practicality of the present utility model, this embodiment provides an installation solution applicable to different types of top cover drainage floats.

[0059] 1. Adaptive adjustment of the bracket:

[0060] For different types of top cover drainage floats (such as flexible top cover floats made of stainless steel pipes, magnetic flap top cover floats, sausage-shaped top cover floats, etc.), the size and shape of the cross-shaped bracket can be adjusted to adapt to the installation requirements of different floats. This design makes the bracket system of the present utility model have wide applicability and can install different types of top cover drainage floats without discrimination.

[0061] 2. Installation and fixation of the float:

[0062] According to the specific type and size of the float, select the appropriate fixation method and position for installation. For example, for flexible floats, flexible straps can be used for fixation; for magnetic flap floats, their magnetic properties can be utilized for positioning and installation. No matter which method is adopted, it should be ensured that the float can be stably and reliably fixed on the bracket and can operate correctly when the action water level is reached.

[0063] 3. Debugging and verification:

[0064] After the installation of the float is completed, carry out debugging and verification work. By simulating different water level conditions, observe the operation of the float, and adjust the position and fixation method of the bracket to ensure that the float can operate correctly under various working conditions, so as to effectively control the start and stop of the top cover pump.

[0065] Through the description of the above three embodiments, it can be seen that the top cover drainage float bracket of the present utility model has the advantages of simple structure, convenient installation, flexible adjustment, wide applicability, etc. These advantages make the bracket system of the present utility model have high practical value and promotion prospects in practical applications.

[0066] In a preferred solution, the inner side of the short bracket 11 of the fixed bracket 1 is rigidly fixed at a preset position on the wall of the water guide layer in the waterwheel chamber to ensure the stability of the fixed bracket 1; the above setting can make the short bracket 11 closely fit the wall, effectively disperse and bear the vibration and stress generated during the operation of the waterwheel, and further through the flexible adjustment of the movable bracket 2, ensure the accurate centering of the float, and improve the overall operation efficiency and stability.

[0067] In a preferred embodiment, the movable support 2 has a cross-shaped structure, including a vertical support 21 and a horizontal support 22. The vertical support 21 is connected to the connection hole 12 of the fixed support 1 by self-tapping screws. The horizontal support 22 can slide along the vertical support 21 and be fixed at a preset position to adapt to different installation requirements. The above settings not only improve the flexibility and adaptability of the equipment but also ensure the stability of the installation. The sliding design of the horizontal support 22, combined with an accurate fixing mechanism, makes the installation process more convenient and meets the height and angle adjustment requirements in different scenarios.

[0068] In a preferred embodiment, scale marks are provided on both the horizontal support 22 and the vertical support 21 of the movable support 2 to accurately record the installation position of the horizontal support 22 and ensure accuracy during reinstallation. The above settings not only improve the convenience of operation but also greatly enhance the repeated installation accuracy of the equipment, effectively avoiding performance degradation or damage caused by position deviation and ensuring the stability and reliability of the overall system.

[0069] In a preferred embodiment, the fixed base 31 of the junction box 3 is provided with an adjustable fastening device 32 to adapt to wire ropes of different diameters and ensure flexible and stable binding of the float. The above settings not only improve the compatibility and installation efficiency of the equipment but also effectively reduce potential safety hazards caused by loose fixation through a fine adjustment mechanism, providing more reliable technical support for ocean monitoring, underwater operations, etc.

[0070] In a preferred embodiment, a set of adjustment tools is also provided. This tool is used to adjust the position of the horizontal support 22 of the movable support 2 on the vertical support 21 and fasten the horizontal support 22 to the preset position to ensure convenient and accurate installation. The above settings not only improve the flexibility of equipment installation but also greatly enhance the stability of the structure. In addition, the adjustment tool adopts a quick locking mechanism, effectively shortening the installation and debugging time and bringing a more efficient and convenient user experience.

[0071] In a preferred embodiment, the design of the movable support 2 enables it to be applicable not only to traditional weight hammer bundled pull rope bulb flipping floats but also to install different types and sizes of top cover drainage floats, such as stainless steel pipe flexible top cover floats, magnetic flip plate top cover floats, or sausage-shaped top cover floats, by adjusting the size and shape of the cross-shaped support. The above settings greatly broaden the application scope of the movable support 2, making it a general solution for float installation and maintenance in multiple fields such as sewage treatment, chemical storage tanks, and water conservancy monitoring, improving the flexibility and compatibility of the equipment.

[0072] In summary, the present utility model provides a top cover drainage float bracket that can be disassembled, assembled, and adjusted in position conveniently, solving the problems of disassembly and assembly of the top cover drainage float and its bracket during the maintenance of the water turbine unit, and ensuring that the top cover drainage float can be accurately installed in the original position, thereby effectively avoiding the problems of mutual interference or abnormal operation caused by position deviation of the float, and further ensuring that the top cover pump can start and stop accurately, ensuring the safe operation of the hydropower station; through the technical solution of the present utility model, the rapid, convenient disassembly, assembly, and precise position adjustment of the top cover drainage float bracket are realized, not only improving the maintenance efficiency, but also ensuring the stability and reliability of the equipment operation; at the same time, this technical solution also takes into account the versatility and flexibility of the bracket, and can adapt to various types of top cover drainage floats to meet the actual needs of different hydropower stations; aiming at the problems of fixed installation position and inconvenient disassembly and assembly of the top cover drainage float bracket in the prior art, this solution proposes a new structural design idea, and through the combination of the movable bracket and the fixed bracket, the flexible adjustment of the bracket position is realized, creatively solving this technical problem; traditional bracket designs often only focus on their basic functions, while this solution fully considers the convenience of use, the flexibility of installation, and the versatility during the design process. By introducing innovative elements such as movable brackets and adjustable fastening devices, a major breakthrough in the design concept is achieved; this solution not only innovates in design, but also comprehensively optimizes in terms of material selection, processing technology, installation and commissioning, etc., ensuring the stability, durability, and easy maintainability of the bracket, and improving the operation reliability and economy of the entire system; by implementing this solution, the maintenance efficiency and operation reliability of the top cover drainage system of the hydropower station water turbine generator set can be significantly improved, the failure rate and maintenance cost caused by inconvenient disassembly and assembly of the bracket or improper installation position can be reduced, providing a strong guarantee for the safe and stable operation of the hydropower station.

Claims

1. A top cover drainage float bracket that can be disassembled and adjusted in position portably, characterized in that Including: A fixed bracket (1), which is a set of short brackets (11). The inner side of the short brackets is fixed on the wall of the water guide layer in the waterwheel chamber, and a connection hole (12) is provided on the outer side. The movable bracket (2) is detachably connected to the fixed bracket (1) through the connection hole (12). The movable bracket (2) is arranged in a cross shape and includes a set of vertical brackets (21) and horizontal brackets (22) that are perpendicularly installed together. A junction box (3) is arranged between the movable brackets (2). A fixed base (31) is provided at the bottom of the junction box (3) for binding the steel wire rope of the top cover drainage float. Cable inlets and outlets are provided on both sides of the junction box for convenient wiring operation.

2. The portable dismountable and position-adjustable top cover drain float bracket according to claim 1, wherein: The inner side of the short brackets (11) of the fixed bracket (1) is rigidly fixed at a preset position on the wall of the water guide layer in the waterwheel chamber to ensure the stability of the fixed bracket (1).

3. The portable dismountable top cover drain float bracket for position adjustment according to claim 2, wherein: The movable bracket (2) is in a cross shape structure and includes a vertical bracket (21) and a horizontal bracket (22). The vertical bracket (21) is connected to the connection hole (12) of the fixed bracket (1) through self-tapping screws. The horizontal bracket (22) can slide along the vertical bracket (21) and be fixed at a preset position to meet different installation requirements.

4. A top cover drainage float bracket capable of being disassembled, assembled, and adjusted in position portably according to claim 3, wherein: Scales are provided on both the horizontal bracket (22) and the vertical bracket (21) of the movable bracket (2) for accurately recording the installation position of the horizontal bracket (22) to ensure the accuracy during reinstallation.

5. A top cover drain float bracket capable of being disassembled, assembled, and adjusted in position portably, characterized in that: An adjustable fastening device (32) is provided on the fixed base (31) of the junction box (3) to adapt to steel wire ropes of different diameters.

6. The portable dismountable and position-adjustable top cover drain float bracket according to claim 5, characterized in that: A set of adjustment tools is also provided. This tool is used to adjust the position of the horizontal bracket (22) of the movable bracket (2) on the vertical bracket (21) and fasten the horizontal bracket (22) to the preset position to ensure convenient and accurate installation.

Images