A riser assembly and transformer

Abstract

The utility model relates to a kind of lifting seat assembly and transformer, lifting seat assembly includes detachable connection upper cylinder and lower cylinder from top to bottom, the top of upper cylinder is provided with the cover plate detachably connected with it, the side wall of upper cylinder is provided with hand hole, the inside of upper cylinder is provided as the cavity of accommodating current transformer, the utility model can solve the technical problems of lead easy to be damaged in the prior art during the transportation process of transformer, installation process is complicated and the structure of lifting seat is not convenient to operate.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, specifically relating to a riser assembly and a transformer. Background Technology

[0002] In the structure of a power transformer, the leads, as important conductive components connecting the internal windings and external terminals, primarily function to ensure stable current transmission between different electrical components. Depending on the transformer's voltage level, the leads are typically made of metals with good conductivity, such as copper and aluminum, and must possess sufficient mechanical strength to withstand the tensile forces applied during installation and the electromagnetic forces generated during operation.

[0003] However, during transformer transportation, some leads are exposed on the outside of the transformer tank, making them susceptible to damage from external impacts or bending. Although the leads themselves have a certain degree of rigidity, they may still deform or even break under significant external forces, affecting the reliability of subsequent installation and operation. Therefore, existing technologies typically install lead protection seats on the outside of the transformer tank to provide temporary protection for the exposed leads during transportation, preventing bending or damage. However, in practice, after the transformer arrives at the site, these protection seats must be removed before installing the riser assembly, resulting in a cumbersome installation process and low work efficiency.

[0004] Furthermore, common riser structures currently include a riser cylinder and a cover plate fixedly welded to its top. The riser cylinder contains a support plate for supporting the current transformer. Because the cover plate and cylinder are connected by a non-removable weld, installing the current transformer and its support structure often requires hoisting the support plate and current transformer sequentially from the bottom of the riser cylinder upwards, or first assembling the riser upside down and then flipping it back to its original position. This installation method is not only complex but also increases the frequency of hoisting equipment use and labor costs on the construction site, hindering the improvement of overall transformer installation efficiency and safety. Utility Model Content

[0005] In view of the various shortcomings of the existing technology, a riser assembly and transformer are proposed to solve the technical problems of easy damage to the leads during transformer transportation, complicated installation process, and inconvenient operation of the riser structure in the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] In a first aspect, the present invention provides a lifting seat assembly, comprising a detachably connected upper cylinder and a lower cylinder from top to bottom. The top of the upper cylinder is provided with a cover plate detachably connected thereto, the side wall of the upper cylinder is provided with a hand hole, and the interior of the upper cylinder is configured as a cavity for accommodating a current transformer.

[0008] The technical solution is further configured such that the bottom of the upper cylinder is provided with an upper cylinder lower flange, the top of the lower cylinder is provided with a lower cylinder upper flange, and the upper cylinder lower flange is connected to the lower cylinder upper flange.

[0009] The technical solution is further configured such that the lower surface of the lower flange of the upper cylinder is at a height higher than the bottom of the upper cylinder to form a protrusion, and the upper surface of the upper flange of the lower cylinder is at a height higher than the top of the lower cylinder to form a recess for the protrusion to be inserted.

[0010] The technical solution is further configured such that the cover plate is provided with an inner hole, the outer edge of the cover plate is provided with an outer flange, the inner edge of the cover plate is provided with an inner flange, the top of the upper cylinder is provided with an upper flange connected to the outer flange, and a sleeve cover plate connected to the inner flange is provided above the inner hole.

[0011] The technical solution is further configured such that the height of the upper surface of the inner flange of the cover plate is lower than the height of the upper surface of the outer flange of the cover plate.

[0012] The technical solution is further configured such that the plane at the bottom of the lower cylinder is parallel to the plane at its top, or is inclined relative to the plane at its top.

[0013] Secondly, this utility model provides a transformer, including a housing, and the lifting seat assembly is provided on the outside of the housing.

[0014] The technical solution is further configured such that a clamp is provided on the side wall of the lower cylinder, an ear seat is provided on the box body, and a support rod is hinged between the clamp and the ear seat.

[0015] The beneficial effects of this utility model are:

[0016] 1. The lifting assembly adopts a two-section structure, which solves the problem of exposed leads being easily damaged during transformer transportation by using a detachable upper and lower cylinder. During transportation, the lower cylinder can be used to protect the leads, and during installation, the lower cylinder does not need to be disassembled; the upper cylinder can be installed directly, simplifying the installation process.

[0017] 2. The upper cylinder and the cover plate are connected in a detachable manner, which facilitates the installation of the current transformer. This solves the problem that the existing technology uses a non-detachable welding method to connect the cover plate and the cylinder, which makes the operation of installing the current transformer complicated. It reduces the frequency of use of hoisting equipment and labor costs, and improves installation efficiency and safety.

[0018] 3. The inner hole on the cover plate, in conjunction with the sleeve cover plate, can seal the inner hole when the sleeve is not installed, preventing the inside of the riser assembly from being contaminated by the environment and improving the reliability of the equipment.

[0019] 4. The handholes on the side wall of the upper cylinder facilitate internal installation and maintenance by operators, further improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one embodiment of the lifting seat assembly in this utility model;

[0021] Figure 2 This is a schematic diagram of another embodiment of the lifting seat assembly in this utility model;

[0022] Figure 3 yes Figure 1 Partial schematic diagram at point A in the middle;

[0023] Figure 4 This is an assembly diagram of the lifting seat assembly and the housing in an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the assembly of the lifting seat assembly and the housing in an embodiment of this utility model.

[0025] In the attached diagram: 1. Upper cylinder; 2. Lower cylinder; 3. Handhole; 4. Lifting ring; 5. Cover plate; 501. Outer flange of cover plate; 6. Sleeve cover plate; 7. Lower flange of upper cylinder; 8. Upper flange of upper cylinder; 9. Upper flange of lower cylinder; 10. Lower flange of lower cylinder; 11. Clamp; 12. Ear seat; 13. Support rod; 14. Box body. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0027] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0028] Example 1

[0029] According to an embodiment of this utility model, a lifting seat assembly is provided. Please refer to [link / reference]. Figures 1 to 3 From top to bottom, it includes a detachably connected upper cylinder 1 and a lower cylinder 2. The top of the upper cylinder 1 is provided with a cover plate 5 that is detachably connected to it. The side wall of the upper cylinder 1 is provided with a hand hole 3. The interior of the upper cylinder 1 is set as a cavity to accommodate the current transformer.

[0030] Specifically, the upper cylinder 1 is made of metal, such as steel, and has a cylindrical structure, the diameter of which can be designed according to actual needs. Handholes 3 are provided on the side walls of the upper cylinder 1; these handholes 3 are elliptical in shape, facilitating access for workers to install, inspect, or replace current transformers. Lifting rings 4 are also provided on the side walls of the upper cylinder 1 for easy hoisting and transportation.

[0031] Specifically, the upper cylinder 1 has an internal cavity specifically designed to accommodate the current transformer. The inner diameter of the cavity is slightly larger than the outer diameter of a standard current transformer, typically 1.1 to 1.2 times the outer diameter, to ensure that the current transformer can be easily inserted and secured within the cavity. Support structures may be provided on the inner wall of the cavity to stabilize the position of the current transformer.

[0032] Specifically, the cover plate 5 and the upper cylinder 1 are connected in a detachable manner, such as by bolts. The cover plate 5 is made of the same or similar material as the upper cylinder 1, and its diameter matches the outer diameter of the upper cylinder 1. The design of the cover plate 5 allows the top of the upper cylinder 1 to be easily opened when needed for the installation or maintenance of the internal current transformer. This solves the problem of complicated operation when installing current transformers caused by the non-detachable welding connection between the cover plate and the cylinder in the prior art, reduces the frequency of use of hoisting equipment and labor costs, and improves installation efficiency and safety.

[0033] Specifically, the lower cylinder 2 is also made of metal, and its diameter may be the same as or slightly different from that of the upper cylinder. The lower cylinder 2 mainly serves as a support, raising the entire riser assembly to a suitable height to facilitate the installation and use of the current transformer.

[0034] It should be noted that the lifting assembly adopts a two-section structure, with the upper cylinder 1 and the lower cylinder 2 being detachably connected. This solves the problem in the prior art where the leads are exposed on the outside of the enclosure and are easily damaged during the transportation of the transformer. The lower cylinder 2 can be used to protect the leads during transportation, and during installation, there is no need to disassemble the lower cylinder 2; the upper cylinder 1 can be installed directly, simplifying the installation process.

[0035] In the lifting seat assembly of this embodiment, please refer to Figures 1 to 3 The bottom of the upper cylinder 1 is provided with an upper cylinder lower flange 7, and the top of the lower cylinder 2 is provided with a lower cylinder upper flange 9. The upper cylinder lower flange 7 and the lower cylinder upper flange 9 are connected.

[0036] Specifically, both the lower flange 7 of the upper cylinder and the upper flange 9 of the lower cylinder are annular structures with multiple bolt holes evenly distributed on the annular structure, usually 6 to 12, for installing connecting bolts.

[0037] Furthermore, the lower surface of the lower flange 7 of the upper cylinder is at a height higher than the bottom of the upper cylinder 1, forming a protrusion. The upper surface of the upper flange 9 of the lower cylinder is at a height higher than the top of the lower cylinder 2, forming a recess for the protrusion to be inserted. The height of the protrusion matches the depth of the recess. This design forms a slot-type connection structure, enhancing the stability and sealing of the connection between the upper cylinder 1 and the lower cylinder 2, and preventing shaking or displacement during use.

[0038] In the lifting seat assembly of this embodiment, please refer to Figures 1 to 3 The cover plate 5 has an inner hole, the outer edge of the cover plate 5 has an outer flange 501, the inner edge of the cover plate 5 has an inner flange, the top of the upper cylinder 1 has an upper flange 8 connected to the outer flange 501, and the upper hole has a sleeve cover plate 6 connected to the inner flange.

[0039] Furthermore, the upper flange 8 of the upper cylinder and the outer flange 501 of the cover plate are connected by bolts, usually 6 to 12 bolts, which are evenly distributed around the flange.

[0040] Furthermore, the casing cover 6 covers the inner bore and connects to the inner flange of the cover plate, forming a protection and seal for the inner bore. The casing cover 6 is made of metal and has a diameter slightly larger than the inner bore diameter, typically 1.2 to 1.5 times the inner bore diameter.

[0041] Furthermore, the height of the upper surface of the inner flange of the cover plate is lower than the height of the upper surface of the outer flange 501 of the cover plate, forming a groove structure that limits the position of the sleeve cover plate 6. At the same time, it reduces the height of the sleeve cover plate 6 protruding from the upper surface of the cover plate 5, avoiding unnecessary height increases or safety hazards caused by excessive protrusion. When the sleeve is not installed, the sleeve cover plate 6 can seal the inner hole, preventing environmental contamination of the inside of the riser assembly and improving the reliability of the equipment.

[0042] In the lifting seat assembly of this embodiment, please refer to Figures 1 to 3The bottom plane of the lower cylinder 2 can be parallel to its top plane, or inclined relative to its top plane, effectively increasing the safe distance between adjacent live terminals and contributing to the stable operation of the transformer. It should be noted that when using an inclined design, the upper part of the riser assembly can still remain horizontal, ensuring the normal operation of the current transformer.

[0043] Example 2

[0044] According to an embodiment of this utility model, a transformer is provided; please refer to [link / reference]. Figures 1 to 5 It includes a housing 14, and the outer side of the housing 14 is provided with the lifting seat assembly described in Embodiment 1.

[0045] Specifically, the enclosure 14 is made of steel plate with an anti-corrosion treatment. The core components such as the transformer core and windings are installed inside the enclosure 14. A riser assembly is provided on the outside of the enclosure 14 for installing the current transformer, so that the current transformer is at an appropriate height for easy electrical connection with the transformer and routine maintenance.

[0046] Specifically, the bottom of the lower cylinder 2 is provided with a lower cylinder flange 10, which is connected to the box body 14 by bolts.

[0047] In the transformer of this embodiment, please refer to Figures 1 to 5 A clamp 11 is provided on the side wall of the lower cylinder 2, and an ear seat 12 is provided on the box body 14. A support rod 13 is hinged between the clamp 11 and the ear seat 12.

[0048] Furthermore, the clamp 11 adopts a metal strip structure, surrounds the lower cylinder 2, and is fastened with bolts. The side of the clamp 11 that contacts the lower cylinder 2 is provided with anti-slip texture, and the installation position of the clamp 11 relative to the lower cylinder 2 is adjustable.

[0049] Furthermore, the ear seat 12 is welded to a suitable position on the housing 14. The ear seat 12 is made of steel plate and has a hinge hole on its upper part. The support rod 13 is hinged at one end to the clamp 11 and at the other end to the ear seat 12, forming a triangular support structure, which enhances the stability of the riser assembly. The support rod 13 is made of steel, and the angle between it and the housing 14 can be adjusted by adjusting the installation height of the clamp 11. Both ends of the support rod 13 have hinge holes and are connected to the clamp 11 and the ear seat 12 by pins. This design makes the riser assembly and the housing 14 form a stable whole, which is not easy to shift or tip over even under external forces. At the same time, due to the use of hinges, the angle of the support rod 13 can be adjusted when needed, which facilitates the installation and disassembly of the riser assembly.

[0050] For details, please refer to Figure 4When the bottom plane of the lower cylinder 2 is parallel to the top plane, the support rods 13 can be arranged symmetrically along the central axis of the lower cylinder 2. Simultaneously, multiple support rods 13 can be connected to the same clamp 11. (See also...) Figure 5 When the bottom plane of the lower cylinder 2 is inclined relative to the top plane, the support rod 13 can be set one-to-one with the clamp 11 to avoid interference between different support rods 13.

[0051] During transformer operation, the current is measured and monitored through the current transformer within the riser assembly. The primary winding of the current transformer is connected in series with the transformer's main circuit, while the secondary winding is connected to measuring instruments or protection devices. The current transformer's leads are led out through the inner hole on cover plate 5 and connected to the corresponding measuring or protection equipment. The handhole 3 on the riser assembly allows personnel to directly access the internal space to inspect, adjust, or replace the current transformer without disassembling the entire assembly. For larger-scale maintenance or replacement, cover plate 5 can be removed for easier operation.

[0052] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0053] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0054] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0055] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0056] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A lifting seat assembly, characterized in that, From top to bottom, it includes a detachably connected upper cylinder and a lower cylinder. The top of the upper cylinder is provided with a cover plate that is detachably connected to it. The side wall of the upper cylinder is provided with a hand hole. The interior of the upper cylinder is set as a cavity to accommodate a current transformer.

2. The lifting seat assembly according to claim 1, characterized in that, The bottom of the upper cylinder is provided with a lower flange, and the top of the lower cylinder is provided with an upper flange. The lower flange of the upper cylinder is connected to the upper flange of the lower cylinder.

3. The lifting seat assembly according to claim 2, characterized in that, The lower surface of the lower flange of the upper cylinder is at a height higher than the bottom of the upper cylinder to form a protrusion, and the upper surface of the upper flange of the lower cylinder is at a height higher than the top of the lower cylinder to form a recess for the protrusion to be inserted.

4. The lifting seat assembly according to claim 1, characterized in that, The cover plate has an inner hole, the outer edge of the cover plate has an outer flange, the inner edge of the cover plate has an inner flange, the top of the upper cylinder has an upper flange that connects to the outer flange, and the upper hole has a sleeve cover plate that connects to the inner flange.

5. The lifting seat assembly according to claim 4, characterized in that, The height of the upper surface of the inner flange of the cover plate is lower than the height of the upper surface of the outer flange of the cover plate.

6. The lifting seat assembly according to claim 1, characterized in that, The bottom plane of the lower cylinder is parallel to the top plane, or inclined relative to the top plane.

7. A transformer, characterized in that, It includes a housing, and the outer side of the housing is provided with a lifting seat assembly as described in any one of claims 1-6.

8. The transformer according to claim 7, characterized in that, A clamp is provided on the side wall of the lower cylinder, and an ear seat is provided on the box body. A support rod is hinged between the clamp and the ear seat.

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