A device for replacing an electric reactor winding

By designing a lifting device for reactor windings, the problem of difficulty in replacing reactor windings in confined spaces was solved, achieving convenient replacement and improved safety, while reducing labor requirements and production costs.

CN224384068UActive Publication Date: 2026-06-19ALUMINUM CORP OF CHINA LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ALUMINUM CORP OF CHINA LTD
Filing Date
2025-06-16
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to replace reactor windings in a confined space, requiring a large amount of labor and posing significant safety hazards during the operation.

Method used

Design a device for replacing reactor windings, including a lifting device composed of an upper channel steel, a lower channel steel, and a screw rod connected by the screw rod, which passes through the channel steel. The winding is nested on the iron core, and a detachable iron core is provided at the top, which is fixed by the screw rod and nut. Insulating bakelite is used to isolate people from the circuit for safety.

Benefits of technology

It enables convenient winding replacement in confined spaces, reduces labor requirements, improves safety, lowers enterprise production costs, and is simple to operate with quick results.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224384068U_ABST
    Figure CN224384068U_ABST
Patent Text Reader

Abstract

This utility model discloses a device for replacing reactor windings, belonging to the technical field of reactor winding replacement. It solves the problem of inconvenient replacement of reactor windings in confined spaces. In this utility model, the winding is nested on the iron core at the bottom of the reactor, and a detachable iron core is also provided at the top of the winding. The device includes a lifting mechanism comprising an upper channel steel, a lower channel steel, and a screw. The upper and lower channel steels are respectively located on the upper and lower sides of the winding, connected by a screw. The screw passes through the bottom of the upper channel steel and the top of the lower channel steel, and is fixed to the upper and lower channel steels by nuts. The winding is located between the two screws, and the detachable iron core is located at the top of the upper channel steel. This utility model has a simple principle, is easy to operate, has low modification costs, and high safety performance, and can be effectively used in confined installation spaces.
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Description

Technical Field

[0001] This utility model belongs to the field of reactor winding replacement technology, specifically relating to a device for replacing reactor windings. Background Technology

[0002] When a 3T medium-frequency furnace reactor experiences water leakage from its nozzles, windings, or insulation damage, it needs to be disassembled. The faulty winding must be removed, repaired, and reinstalled. The reactor winding has a split iron core; the middle and bottom sections of the winding are in a straight line, while the top is perpendicularly connected to the iron core. Due to the reactor's significant weight (around 0.5T) and the limited installation space, disassembly is very difficult. Each time, it requires 4 to 6 people to lift the reactor out of the control cabinet before disassembly and repair. Therefore, it presents problems such as inconvenience in replacement, high labor requirements, and potential safety hazards during the operation. Utility Model Content

[0003] The purpose of this invention is to provide a device for replacing reactor windings, so as to solve the problem that it is inconvenient to replace reactor windings in a confined space.

[0004] The technical solution of this utility model is: a device for replacing reactor windings, wherein the windings are nested on the iron core at the bottom of the reactor, and a detachable iron core is provided at the top of the windings. The device includes a lifting device, which includes an upper channel steel, a lower channel steel, and a screw. The upper channel steel and the lower channel steel are respectively arranged on the upper and lower sides of the windings. The upper channel steel and the lower channel steel are connected by a screw. The screw passes through the bottom of the upper channel steel and the top of the lower channel steel, and the connection between the screw and the upper and lower channel steels is fixed by a nut. The windings are arranged between the two screws, and the detachable iron core is located at the top of the upper channel steel.

[0005] As a further improvement of this utility model, insulating bakelite is provided between the bottom of the upper channel steel and the top of the winding, and insulating bakelite is provided between the top of the lower channel steel and the bottom of the winding.

[0006] The beneficial effects of this utility model are as follows: By connecting the screw and the thread, the upper channel steel is raised upward, which raises the iron core a certain distance, thereby creating a certain space between the winding and the iron core. This makes it easy to disassemble the winding for maintenance.

[0007] This utility model has a simple principle and is easy to operate, requiring only one or two workers. It has low modification costs, using low-cost materials, thus saving production costs for enterprises while ensuring usability. It boasts high safety performance, effectively allowing for use in confined spaces and avoiding the need to remove the reactor from the control cabinet for disassembly and repair. Furthermore, this utility model requires minimal investment, yields quick results, is highly operable, and easily replicated in the same industry. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model.

[0009] In the diagram: 1-winding; 2-iron core; 31-upper channel steel; 32-lower channel steel; 4-screw; 5-nut; 6-insulating bakelite. Detailed Implementation

[0010] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0011] like Figure 1 As shown, a device for replacing reactor windings is provided. The winding 1 is nested on the iron core at the bottom of the reactor. The top of the winding 1 is also provided with a detachable iron core 2. The device includes a lifting device, which includes an upper channel steel 31, a lower channel steel 32 and a screw 4. The upper channel steel 31 and the lower channel steel 32 are respectively arranged on the upper and lower sides of the winding 1. The upper channel steel 31 and the lower channel steel 32 are connected by the screw 4. The screw 4 passes through the bottom of the upper channel steel 31 and the top of the lower channel steel 32 respectively. The connection between the screw 4 and the upper channel steel 31 and the lower channel steel 32 is fixed by a nut 5. The winding 1 is arranged between the two screws 4 on both sides. The detachable iron core 2 is arranged on the top of the upper channel steel 31. The detachable iron core 2 at the top of the winding 1 is clamped by two upper channel steels 31. The bottom of the winding 1 is supported by two lower channel steels 32. The length of the screw is 120-160mm.

[0012] Insulating bakelite 6 is provided between the bottom of the upper channel steel 31 and the top of the winding 1, and insulating bakelite 6 is provided between the top of the lower channel steel 32 and the bottom of the winding 1.

[0013] During normal use, after moving the upper channel steel 31 and the lower channel steel 32 to a suitable position on the screw 4, tighten them with the nut 5. At this time, the reactor works normally. Insulating bakelite 6 is vertically installed between the bottom of the upper channel steel 31 and the top of the winding 1, and insulating bakelite 6 is horizontally installed between the top of the lower channel steel 32 and the bottom of the winding 1. The insulating bakelite 6 has excellent insulation performance, wear resistance, non-deformation and stable mechanical properties. It can isolate people from the circuit, thereby ensuring the safety of the operator. At the same time, it can prevent short circuits between the two connection points, thereby ensuring the stability of the circuit.

[0014] When winding 1 malfunctions and needs repair or replacement, the upper channel steel 31 is lifted a certain distance and then tightened with nut 5. It is important to ensure that the inner space of the upper channel steel 31 is larger than the operating lifting space to prevent the top of the screw 4 from hitting the top of the upper channel steel 31 and making it impossible to lift. After lifting a certain distance, a certain operating space is formed between winding 1 and the detachable iron core 2 at the top of winding 1. This allows winding 1 to be easily disassembled for repair. Through multiple repairs of reactors, this device has proven to be convenient and quick, allowing only 1-2 people to disassemble reactor winding 1 for repair, which facilitates repair work and reduces operational risks.

Claims

1. A device for replacing a reactor winding, the winding being nested on an iron core at the bottom of the reactor, and a detachable iron core being provided at the top of the winding, characterized in that: The device includes a lifting device, which includes an upper channel steel (31), a lower channel steel (32) and a screw (4). The upper channel steel (31) and the lower channel steel (32) are respectively arranged on the upper and lower sides of the winding (1). The upper channel steel (31) and the lower channel steel (32) are connected by a screw (4). The screw (4) passes through the bottom of the upper channel steel (31) and the top of the lower channel steel (32). The connection between the screw (4) and the upper channel steel (31) and the lower channel steel (32) is fixed by a nut (5). The winding (1) is located between the two screws (4). The detachable iron core (2) is located on the top of the upper channel steel (31).

2. The device for replacing reactor windings according to claim 1, characterized in that: Insulating bakelite (6) is provided between the bottom of the upper channel steel (31) and the top of the winding (1), and insulating bakelite (6) is provided between the top of the lower channel steel (32) and the bottom of the winding (1).