Full-sealed transformer
The fully sealed transformer solves the problem of leakage at the connection pipes of traditional transformers through the design of the connecting sleeve, seal sleeve and adjustment sleeve, achieving convenient installation and efficient sealing, ensuring that the oil does not leak, and improving the operating reliability of the transformer.
Patent Information
- Application Number
- CN202421684586.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The connections of traditional transformer oil pipes are prone to leakage, resulting in waste of oil and environmental pollution, and inconvenient maintenance.
It adopts a fully sealed transformer design, including a connecting sleeve, a seal sleeve and an adjustment sleeve. The rigid connection and sealing of the oil pipe is achieved through threaded connection and V-shaped bending structure. The adjustment sleeve can adjust the sealing tightness as needed.
It improves the installation convenience and stability of the oil pipe, prevents oil leakage, and ensures the purity of the oil in the transformer and the stable operation of the system.
Smart Images
Figure CN223078940U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of transformers, in particular to a fully sealed transformer. Background Art
[0002] As a key device in power transmission and distribution, the performance and reliability of transformers directly affect the safe and stable operation of the entire power grid. During long-term use of traditional transformers, due to factors such as material aging and unreasonable structural design, oil leakage often occurs at the oil pipe connection points. This not only causes waste of transformer oil but also may pollute the surrounding environment and even trigger safety accidents such as fires. Since regular oil inspection, replacement, and repair of leakage points are required, the traditional oil pipes are inconvenient to disassemble and assemble, resulting in cumbersome and time-consuming maintenance work. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a fully sealed transformer, and solve the following technical problems: how to effectively prevent oil leakage at the transformer oil pipe connection points, and how to improve the convenience of maintenance and installation of the transformer oil pipes.
[0004] To solve the problems existing in the prior art, the technical scheme adopted by the utility model is as follows:
[0005] A fully sealed transformer includes a connecting sleeve. The connecting sleeve is embedded and fixed at the top of the transformer. The top of the connecting sleeve is open. A round hole is provided at the bottom of the connecting sleeve. An oil pipe is inserted into the connecting sleeve. The bottom end of the oil pipe is connected to the inner cavity of the transformer, and the top end of the oil pipe is connected to the oil conservator.
[0006] A sealing sleeve is provided inside the connecting sleeve, and the sealing sleeve is sleeved outside the oil pipe.
[0007] An adjusting sleeve is threadedly connected inside the connecting sleeve, and the adjusting sleeve is sleeved outside the oil pipe.
[0008] Preferably, the sealing sleeve is in a ring-shaped V-shaped bend. The sealing sleeve forms a two-layer structure at the V-shaped bend, and there is a certain gap between the two layers. The bottoms of the two-layer structure are connected by bending to form a continuous sealing interface. The bottom of the adjusting sleeve is slidably inserted into the V-shaped bend gap of the sealing sleeve.
[0009] Preferably, a metal ring is provided inside the bent connection at the bottoms of the two layers of the sealing sleeve.
[0010] Preferably, the bottom of the adjusting sleeve is arc-shaped.
[0011] Preferably, the top of the connecting sleeve is provided with an eaves extending outward.
[0012] Preferably, grooves are equidistantly provided on the outer side of the top end of the adjusting sleeve.
[0013] Preferably, a support ring is provided inside the connecting sleeve, and the top of the support ring is curved and fits with the sealing sleeve.
[0014] Preferably, the sealing sleeve is made of an elastic material.
[0015] Compared with the related art, the present utility model has the following beneficial effects:
[0016] The design inside the connecting sleeve of the present utility model fully considers the installation convenience of the oil pipe, enabling the oil pipe to be easily inserted and connected to the inner cavity of the transformer and the oil conservator. This design not only simplifies the installation process, but also improves the installation efficiency and reduces the installation cost. At the same time, the stable connection of the oil pipe ensures the smooth circulation of the oil in the transformer. By introducing the adjusting sleeve, the transformer achieves precise control of the compression degree of the sealing sleeve. The threaded connection design between the adjusting sleeve and the inside of the connecting sleeve allows users to rotate the adjusting sleeve to adjust its position according to the size of the oil pipe and actual needs, thereby changing the compression degree of the sealing sleeve. This flexible adjustment mechanism ensures that the sealing effect can closely fit oil pipes of different sizes, effectively preventing oil leakage and enhancing the overall sealing performance of the system. The design of the annular V-shaped bent sealing sleeve and the gap arrangement between the two layers together constitute a strong sealing barrier. Combined with the precise control of the sealing sleeve by the adjusting sleeve, the transformer can maintain excellent sealing effects under various working conditions, effectively preventing external impurities from entering the transformer interior and ensuring the purity of the transformer oil and the stable operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0018] Figure 2 is a cross-sectional view of the structures of the connecting sleeve, sealing sleeve and adjusting sleeve of the present utility model;
[0019] Figure 3 is a schematic diagram of the structure of the sealing sleeve of the present utility model;
[0020] Figure 4 is a schematic diagram of the structure of the connecting sleeve of the present utility model;
[0021] Figure 5 is a schematic diagram of the structure of the adjusting sleeve of the present utility model.
[0022] Reference numerals: 1, connecting sleeve; 2, oil pipe; 3, sealing sleeve; 4, adjusting sleeve; 5, metal ring; 6, eaves edge; 7, groove; 8, support ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] The fully sealed transformer has a connecting sleeve 1, a sealing sleeve 3 and an adjusting sleeve 4;
[0025] As Figures 1 to 5 shown, the connecting sleeve 1 is embedded and fixed at the top of the transformer. The top of the connecting sleeve 1 is open. A round hole is provided at the bottom of the connecting sleeve 1. An oil pipe 2 is inserted into the connecting sleeve 1. The bottom end of the oil pipe 2 is connected to the inner cavity of the transformer, and the top end of the oil pipe 2 is connected to the oil conservator. A sealing sleeve 3 is arranged inside the connecting sleeve 1, and the sealing sleeve 3 is sleeved outside the oil pipe 2. An adjusting sleeve 4 is threadedly connected inside the connecting sleeve 1, and the adjusting sleeve 4 is sleeved outside the oil pipe 2.
[0026] First of all, the connecting sleeve 1 at the top of the transformer, as a core structural component, is not only firmly embedded and fixed on the transformer, but also cleverly reserves a channel for the oil pipe 2 inside it. The open design at the top of the connecting sleeve 1 facilitates installation and maintenance, while the round hole at the bottom accurately docks with the oil pipe 2, enabling the oil to freely flow between the inner cavity of the transformer and the oil conservator to adjust and maintain the working temperature and pressure inside the transformer. To achieve a tight seal of the oil pipe 2.
[0027] As Figures 1 to 5 shown, the sealing sleeve 3 is bent in a ring-shaped V shape. The sealing sleeve 3 forms a two-layer structure at the V-shaped bend, and there is a certain gap between the two layers. The bottoms of the two-layer structures are connected by bending to form a continuous sealing interface. The bottom of the adjusting sleeve 4 is slidably inserted into the V-shaped bend gap of the sealing sleeve 3.
[0028] A sealing sleeve 3 is specially provided inside the connecting sleeve 1. This component forms a two-layer structure in a unique ring-shaped V-shaped bend and retains a certain gap between the two layers. This design not only enhances the sealing effect but also takes into account the thermal expansion and contraction characteristics of the material, ensuring stable sealing under different working conditions. The bottoms of the two layers of the sealing sleeve 3 are connected by a fine bending process to form a continuous and seamless sealing interface, completely blocking the path of oil leakage. To further improve the reliability and adjustability of the seal, the design team introduced the adjusting sleeve 4. This component is tightly combined with the inside of the connecting sleeve 1 through a threaded connection and closely fits outside the oil pipe 2. The bottom of the adjusting sleeve 4 is designed in an arc shape, which perfectly matches the V-shaped bend gap of the sealing sleeve 3. By rotating the adjusting sleeve 4, its position can be finely adjusted, thereby changing the pressing degree on the sealing sleeve 3. This design enables the sealing effect to be flexibly adjusted according to the actual working conditions, ensuring both the tightness of the seal and the convenience of operation.
[0029] As Figures 1 to 5 shown, a metal ring 5 is provided inside the bent connection part at the bottoms of the two layers of the sealing sleeve 3. The metal ring 5 increases the strength and durability of this area and prevents damage caused by long-term use or external forces.
[0030] As Figures 1 to 5 shown, the bottom of the adjusting sleeve 4 is arc-shaped to better adapt to the V-shaped bending gap of the sealing sleeve 3 and slide and insert into this gap.
[0031] As Figures 1 to 5 shown, the top of the connecting sleeve 1 is provided with an eaves edge 6 extending outward, which effectively prevents rainwater or other external liquids from invading the interior of the transformer, ensuring the purity of the transformer oil and the stable operation of the system.
[0032] As Figures 1 to 5 shown, the outer side of the top end of the adjusting sleeve 4 is equidistantly provided with grooves 7, which is convenient for using tools to rotate and adjust, improving the operation convenience.
[0033] As Figures 1 to 5 shown, the inner part of the connecting sleeve 1 is provided with a support ring 8, and the top of the support ring 8 is curved and fits with the sealing sleeve 3, providing additional support and stability for the sealing sleeve 3 to prevent it from shifting or deforming during operation.
[0034] As Figures 1 to 5 shown, the sealing sleeve 3 is made of an elastic material, such as rubber or silica gel, to ensure good sealing effect under different temperature and pressure conditions.
[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A fully sealed transformer, characterized in that, Including: A connecting sleeve (1) is embedded and fixed on the top of the transformer. The top of the connecting sleeve (1) is open. A round hole is provided at the bottom of the connecting sleeve (1). An oil pipe (2) is inserted into the connecting sleeve (1). The bottom end of the oil pipe (2) is connected to the inner cavity of the transformer, and the top end of the oil pipe (2) is connected to the oil conservator. A sealing sleeve (3) is provided inside the connecting sleeve (1), and the sealing sleeve (3) is sleeved outside the oil pipe (2). An adjusting sleeve (4) is threadedly connected inside the connecting sleeve (1), and the adjusting sleeve (4) is sleeved outside the oil pipe (2).
2. The fully sealed transformer according to claim 1, wherein The sealing sleeve (3) is bent in a ring-shaped V shape. The sealing sleeve (3) forms a two-layer structure at the V-shaped bend, and there is a certain gap between the two layers. The bottoms of the two-layer structure are connected by bending to form a continuous sealing interface. The bottom of the adjusting sleeve (4) is slidably inserted into the V-shaped bend gap of the sealing sleeve (3).
3. The fully sealed transformer according to claim 2, wherein A metal ring (5) is provided inside the bent connection at the bottoms of the two layers of the sealing sleeve (3).
4. The fully sealed transformer according to claim 2, wherein, The bottom of the adjusting sleeve (4) is arc-shaped.
5. The hermetically sealed transformer according to claim 1, characterized in that, The top of the connecting sleeve (1) is provided with an eaves edge (6) extending outward.
6. The fully sealed transformer according to claim 1, wherein Grooves (7) are equidistantly provided on the outer side of the top end of the adjusting sleeve (4).
7. The fully sealed transformer according to claim 1, characterized in that, A support ring (8) is provided inside the connecting sleeve (1), and the top of the support ring (8) is curved and fits with the sealing sleeve (3).
8. The hermetically sealed transformer according to claim 2, wherein The sealing sleeve (3) is made of an elastic material.