Right-angle flexible bus unit for position error adjustment of transformer substation
By setting longitudinal and transverse corrugated pipes in the right-angle flexible busbar unit and utilizing anti-offset components and expansion joints with smaller pitch, the high cost and shape retention problems of corrugated pipes when adjusting large position errors in substations are solved, achieving high-precision adjustment and long-term equipment stability.
Patent Information
- Application Number
- CN202422389801.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Existing corrugated pipes require increased length when used in substations to adjust large position errors, resulting in high costs and difficulty in maintaining their shape, especially in right-angle busbars where they are prone to deformation.
Longitudinal and transverse corrugated pipes are set in the right-angle flexible busbar unit, and the offset range of the corrugated pipes is limited by anti-offset components. Expansion joints with smaller pitch are used to protect the corrugated pipe connection parts and prevent deformation.
It achieves high-precision position error adjustment in right-angle flexible busbar units, reduces costs, avoids the problems of deformation and air leakage of corrugated pipes after long-term use, and improves the service life of the equipment.
Smart Images
Figure CN223599440U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of substation conveying equipment, more particularly to a right-angle flexible bus unit for substation position error adjustment. BACKGROUND
[0002] In high-voltage transmission lines in substations, corrugated pipes are often used to adjust the position deviation of the pipeline. The corrugated pipe can achieve a certain amount of axial displacement adjustment and a small angle deflection adjustment.
[0003] However, the axial error adjustment amount of the corrugated pipe is positively correlated with the length of the corrugated pipe. When a larger position error adjustment is needed, the length of the corrugated pipe needs to be increased, which will increase the cost, and the longer corrugated pipe is difficult to maintain its shape and is prone to deformation after long-term use. This problem is particularly evident in right-angle bus pipes.
[0004] Therefore, the present application provides a right-angle flexible bus unit for substation position error adjustment by setting two end corrugated pipes, reducing the length of the corrugated pipe, but setting the corrugated pipe in the longitudinal and axial directions to cope with small position error adjustment, and increasing the position offset limiting component to maintain the shape of the right-angle flexible bus unit. SUMMARY
[0005] The utility model provides a right-angle flexible bus unit for substation position error adjustment to overcome the technical problems mentioned in the background. The right-angle flexible bus unit of the present application can not only adjust the conventional small error amount, but also can be used for position error adjustment that cannot be adjusted by a single corrugated pipe.
[0006] To solve the above technical problems, the technical solution of the utility model is as follows:
[0007] A right-angle flexible bus unit for substation position error adjustment,
[0008] The longitudinal bus pipeline, the transverse bus pipeline, and the right-angle pipeline are connected by flanges. One end of the longitudinal bus pipeline and the transverse bus pipeline is connected to a section of corrugated pipe. The other end of the two sections of corrugated pipe is fixedly connected to the two ends of the right-angle pipeline, respectively.
[0009] Preferably, the corrugated pipe includes an expansion joint and corrugated pipe flanges arranged at both ends of the expansion joint. Anti-offset components are arranged between the opposite surfaces of the two corrugated pipe flanges.
[0010] The anti-deviation component comprises a first connecting rod and a second connecting rod, one end of the first connecting rod and the second connecting rod is fixedly connected on the opposite sides of the flanges of the corrugated pipes respectively, a connecting ball is connected between the first connecting rod and the second connecting rod, a limiting ring with a spherical groove is sleeved on the connecting ball, the first connecting rod passes through a limiting ring through hole in the middle of the limiting ring, the diameter of the limiting ring through hole is larger than the diameter of the first connecting rod, one end of the first connecting rod is rotatably connected with the connecting ball through a universal ball embedded in the connecting ball, and the second connecting rod is fixedly connected with the connecting ball.
[0011] Further preferably, one end of the first connecting rod and the second connecting rod is provided with external threads, the end of the first connecting rod and the second connecting rod provided with external threads penetrates the corrugated pipe flange, and is fixedly connected with the corrugated pipe flange on the opposite side of the corrugated pipe flange through a nut, and the second connecting rod,
[0012] The other end of the second connecting rod is also provided with external threads, and the connecting ball is provided with an internal thread groove matched with the external threads at the end of the second connecting rod.
[0013] Further preferably, the anti-deviation component is provided with at least two.
[0014] Further preferably, a protrusion is welded on the side surface of the corrugated pipe flange, a through hole is formed in the protrusion, and the first connecting rod and the second connecting rod penetrate the protrusion and are fixed on the protrusion through a nut.
[0015] Further preferably, the pitch of the two ends and the middle of the expansion joint is smaller than the pitch of other positions.
[0016] Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:
[0017] The utility model provides a right angle flexible bus unit for substation position error adjustment solves substation high pressure transmission line right angle bus unit position error adjustment problem, specifically,
[0018] 1) by setting corrugated pipes between the right angle pipeline and the longitudinal bus pipeline and the transverse bus pipeline, the position deviation of the bus pipeline caused by the terrain or the self gravity of the equipment can be adjusted in the longitudinal direction and the transverse direction, compared with the corrugated pipes arranged in the single longitudinal direction or the transverse direction of the right angle bus unit, this mode can reduce the length of the corrugated pipes, reduce the cost, and the bidirectional adjustment precision is higher, and the positive deviation and the negative deviation of the right angle pipeline can be coped with;
[0019] 2) By setting the anti-offset component between the flanges at both ends of the bellows, including the first connecting rod, the connecting ball and the second connecting rod, the first connecting rod passing through the limiting ring is connected with the connecting ball in a universal manner, but is limited by the limiting ring through hole, and in the case that the first connecting rod, the connecting ball and the second connecting rod are fixed at the remaining ends, the entire anti-offset component can only be bent within a fixed angle, and the scheme can limit the offset of the bellows within a fixed range, avoiding the case that the bellows leaks due to excessive offset after long-term maintenance;
[0020] 3) The expansion joint of the bellows adopts a scheme of smaller pitch at both ends and in the middle, and in the actual use process of the bellows, the flange connection part and the middle are most prone to damage, the former is prone to damage and leakage due to rigid connection with the flange during offset, and the latter is prone to damage and leakage due to excessive bending and material fatigue, and is difficult to reset, by setting smaller pitch of the expansion joint at the above three parts, the bending capacity of the expansion joint at the parts is enhanced, and the protection effect is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0022] Figure 1 It is a structure schematic view of the positive offset case in embodiment 1 of the present application.
[0023] Figure 2 It is a structure schematic view of the negative offset case in embodiment 1 of the present application.
[0024] Figure 3 It is a structure schematic view of embodiment 2 of the present application.
[0025] Figure 4 It is a structure schematic view of the anti-offset component of the present application.
[0026] Figure 5 It is a structure schematic view of the first connecting rod, the connecting ball and the second connecting rod of the present application.
[0027] Marked in the figure: 1, longitudinal bus duct; 2, transverse bus duct; 3, right-angle duct; 4, bellows; 41, expansion joint; 42, bellows flange; 43, anti-offset component; 431, first connecting rod; 432, limiting ring; 433, limiting ring through hole; 434, connecting ball; 435, second connecting rod; 436, universal ball. DETAILED DESCRIPTION
[0028] In order to better understand the purpose, structure and function of the utility model, the technical scheme of the utility model will be described in further detail below in combination with the drawings and specific preferred embodiments.
[0029] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "left side", "right side", "upper part", "lower part" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and "first", "second" and the like do not represent the importance of the parts, so it cannot be understood as a limitation on the utility model. The specific dimensions used in the embodiments are only for the purpose of illustrating the technical scheme and do not limit the protection scope of the utility model. For those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions can be omitted.
[0030] Unless otherwise expressly specified and limited, the terms "mounting", "setting", "connection", "fixing" and the like should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0031] Embodiment 1:
[0032] Please refer to Figures 1-2 The utility model provides a right angle flexible busbar unit for substation position error adjustment, including longitudinal busbar pipeline 1, transverse busbar pipeline 2 and the right angle pipeline 3 set between the two, longitudinal busbar pipeline 1, transverse busbar pipeline 2 and right angle pipeline 3 are connected through flange, one end of longitudinal busbar pipeline 1, transverse busbar pipeline 2 is connected with a section of bellows 4, and the other end of two sections of bellows 4 is fixedly connected with both ends of right angle pipeline 3 respectively.
[0033] In the above embodiment, by setting the bellows 4 between the right angle pipeline 3 and the longitudinal busbar pipeline 1 and the transverse busbar pipeline 2, the position deviation of the busbar pipeline caused by the terrain or the gravity of the equipment itself can be adjusted in the longitudinal and transverse directions. Compared with the single longitudinal or transverse setting of the bellows 4 in the right angle busbar unit, this mode can reduce the length of the bellows 4, reduce the cost, and at the same time, the bidirectional adjustment accuracy is higher, which can cope with the positive and negative deviation of the right angle pipeline 3.
[0034] Embodiment 2:
[0035] Please refer to Figures 3-5On the basis of the above embodiment, the corrugated pipe 4 comprises an expansion joint 41 and corrugated pipe flanges 42 arranged at both ends of the expansion joint 41, and a deviation prevention component 43 arranged between the opposite faces of the two corrugated pipe flanges 42. The deviation prevention component 43 comprises a first connecting rod 431 and a second connecting rod 435, one end of each of the first connecting rod 431 and the second connecting rod 435 being fixedly connected to the opposite faces of the two corrugated pipe flanges 42. A connecting ball 434 is connected between the first connecting rod 431 and the second connecting rod 435. A limiting ring 432 having a spherical groove is arranged on the connecting ball 434. The first connecting rod 431 passes through a limiting ring through hole 433 in the middle of the limiting ring 432. The diameter of the limiting ring through hole 433 is larger than the diameter of the first connecting rod 431. One end of the first connecting rod 431 is rotatably connected to the connecting ball 434 through a universal ball 436 embedded in the connecting ball 434. The second connecting rod 435 is fixedly connected to the connecting ball 434.
[0036] The difference from the embodiment 1 is that, in the above embodiment, the deviation prevention component 43 is arranged between the corrugated pipe flanges 42 of a corrugated pipe 4 to ensure that the expansion joint 41 of the corrugated pipe 4 is maintained within a fixed deviation range, thereby protecting the pipeline and avoiding damage to the right-angle flexible busbar unit due to long-term lack of maintenance. Specifically, one end of the first connecting rod 431 and the second connecting rod 435 is fixedly connected to the two corrugated pipe flanges 42. The other end of the second connecting rod 435 is fixedly connected to the universal ball 436. The other end of the first connecting rod 431 is rotatably connected to the connecting ball 434 through the universal ball 436. Meanwhile, the first connecting rod 431 passes through a limiting ring 432. The connecting ball 434 can rotate in the spherical groove of the limiting ring 432. The end of the first connecting rod 431 is limited by the limiting ring through hole 433 and can only deviate within a fixed range. Therefore, the deviation range of the deviation prevention component 43 is limited, thereby protecting the equipment.
[0037] More specifically, as shown in Figures 4-5 one end of each of the first connecting rod 431 and the second connecting rod 435 is provided with external threads. The ends of the first connecting rod 431 and the second connecting rod 435 provided with external threads pass through the corrugated pipe flanges 42 and are fixedly connected to the corrugated pipe flanges 42 on the opposite sides of the corrugated pipe flanges 42 through nuts. The other end of the second connecting rod 435 is also provided with external threads. The connecting ball 434 is provided with internal thread grooves matched with the external threads at the end of the second connecting rod 435.
[0038] The threaded connection facilitates the disassembly of the second connecting rod 435. Meanwhile, the second connecting rod 435 can be disassembled from the corrugated pipe flanges 42, and the first connecting rod 431 and the connecting ball 434 can also be disassembled from the corrugated pipe flanges 42, thereby facilitating the replacement and maintenance of the above materials.
[0039] It should be noted that in the above embodiments, the limiting ring 432 in some cases, for example, as shown in Figure 1 the positive offset case, the limiting ring 432 is downward, but in the bending limiting case, the first connecting rod 431 and the limiting ring through hole 433 inner wall due to friction, the limiting ring 432 will not produce the off case, can deal with the positive offset scene.
[0040] Specifically, the anti-offset component 43 is provided with at least two.
[0041] Specifically, as shown in Figure 3 , the corrugated pipe flange 42 side is welded with a protruding block, the protruding block is provided with a through hole, the first connecting rod 431 and the second connecting rod 435 penetrate the protruding block and are fixed on the protruding block through nuts.
[0042] Embodiment 3:
[0043] On the basis of any of the above embodiments, the pitch of the expansion joint 41 at both ends and the middle is smaller than that at other positions.
[0044] The difference from the above embodiments is that in this embodiment, the expansion joint 41 of the corrugated pipe 4 adopts a scheme with smaller pitch at both ends and the middle. In the actual use process of the corrugated pipe 4, the flange connection part and the middle are most easily damaged. The former is because it is rigidly connected with the flange and is easy to damage and leak when offset. The latter is because excessive bending can easily cause material fatigue and is easy to damage and leak, and is also difficult to reset. By setting the pitch of the expansion joint 41 smaller at the above three positions, the bending ability of the expansion joint 41 at this part is enhanced, which has a protection effect.
[0045] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.
Claims
1. A right-angle flexible busbar unit for substation position error adjustment, comprising a longitudinal busbar duct (1), a transverse busbar duct (2) and a right-angle duct (3) arranged therebetween, the longitudinal busbar duct (1), the transverse busbar duct (2) and the right-angle duct (3) being connected by flanges, characterized in that: One end of the longitudinal bus duct (1) and the transverse bus duct (2) are connected with a corrugated pipe (4), and the other ends of the two corrugated pipes (4) are fixedly connected with the two ends of the right-angle pipe (3) respectively.
2. The right angle flexible busbar unit for substation position error adjustment of claim 1, wherein, The corrugated pipe (4) comprises an expansion joint (41) and corrugated pipe flanges (42) arranged at the two ends of the expansion joint (41), and a deviation prevention component (43) is arranged between the opposite surfaces of the two corrugated pipe flanges (42), wherein, The deviation prevention component (43) comprises a first connecting rod (431) and a second connecting rod (435), one end of the first connecting rod (431) and one end of the second connecting rod (435) are fixedly connected to the opposite surfaces of the two corrugated pipe flanges (42) respectively, a connecting ball (434) is connected between the first connecting rod (431) and the second connecting rod (435), a limiting ring (432) with a spherical groove is sleeved on the connecting ball (434), the first connecting rod (431) passes through a limiting ring through hole (433) in the middle of the limiting ring (432), the diameter of the limiting ring through hole (433) is larger than the diameter of the first connecting rod (431), one end of the first connecting rod (431) is rotatably connected with the connecting ball (434) through a universal ball (436) embedded in the connecting ball (434), and the second connecting rod (435) is fixedly connected with the connecting ball (434).
3. The right angle flexible busbar unit for substation position error adjustment of claim 2, wherein, One end of the first connecting rod (431) and one end of the second connecting rod (435) are provided with external threads, the ends of the first connecting rod (431) and the second connecting rod (435) provided with external threads penetrate the corrugated pipe flanges (42) and are fixedly connected with the corrugated pipe flanges (42) on the opposite sides of the corrugated pipe flanges (42) through nuts, the other end of the second connecting rod (435) is also provided with external threads, and the connecting ball (434) is provided with an internal thread groove matched with the external threads of the other end of the second connecting rod (435).
4. The right angle flexible busbar unit for substation position error adjustment of claim 3, wherein, The deviation prevention component (43) is provided with at least two.
5. The right angle flexible busbar unit for substation position error adjustment of claim 4, wherein, The corrugated pipe flanges (42) are welded with protrusions on the side surfaces, the protrusions are provided with through holes, and the first connecting rod (431) and the second connecting rod (435) penetrate the protrusions and are fixed on the protrusions through nuts.
6. The right-angle flexible busbar unit for substation position error regulation of any of claims 2-5, wherein, The pitch of the two ends and the middle of the expansion joint (41) is smaller than the pitch of other positions.