A transformer oil filling device applied to a transformer

By introducing an electrically operated automatic nozzle and a high-voltage silicon-based insulating spray into the transformer oil filling device, the risk of leakage during uninterrupted filling is solved, achieving safe and reliable transformer oil filling and improving power supply reliability.

CN224318262UActive Publication Date: 2026-06-02STATE GRID HUBEI ELECTRIC POWER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
STATE GRID HUBEI ELECTRIC POWER CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing transformer refueling devices lack effective emergency handling measures during uninterrupted refueling, posing a risk of electric leakage and affecting safety and reliability.

Method used

A transformer oil filling uninterruptible device was designed, comprising an electrically operated automatic nozzle and a high-voltage silicon-based insulating spray, used to spray insulating liquid onto the outer wall of the ferromagnetic wire end in case of sealing problems, providing temporary insulation protection.

Benefits of technology

This reduces the risk of leakage, ensures the safety and reliability of the uninterrupted refueling process, and avoids losses from unplanned power outages.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224318262U_ABST
    Figure CN224318262U_ABST
Patent Text Reader

Abstract

This utility model discloses a transformer oil filling uninterruptible device, relating to the field of transformer technology. It includes a transformer, an oil tank mounted on its outer wall, a heat dissipation module mounted on the outer wall of the oil tank, an oil conservator mounted on one side of the oil tank, and an oil conservator body. An oil delivery pipe is mounted on the top of the outer wall of the oil conservator body, one end of which is connected to the top of the transformer. An oil conservator fixing frame is mounted on the bottom of the oil conservator body. When a leak occurs due to a problem with the sealing of the insulating sleeve, high-voltage silicon-based insulating spray is sprayed by electrically pressing an automatic nozzle. The insulating liquid reaches the first-zone insulating disc through a connecting pipe and an insulating hose, is sprayed onto the outer wall of the ferromagnetic wire end, and solidifies, providing temporary emergency insulation, reducing the risk of leakage, ensuring the safety of the uninterrupted filling process, and compensating for the lack of such emergency protection in existing devices.
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Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a transformer oil filling uninterruptible device for transformers. Background Technology

[0002] In current technologies, transformers, as core equipment in power systems, rely on transformer oil for insulation and cooling in oil-immersed transformers. During operation, oil leaks and seepage may occur due to sealing problems, loose bolts, etc., leading to a drop in oil level, affecting normal operation, and even causing malfunctions. Therefore, timely replenishment of transformer oil is necessary. Current transformer oiling operations often require power outages, involving the removal of the oiling pipe blind flange, connection of the oiling machine output head to the oiling pipe flange, and deactivation of heavy gas protection. This disrupts power supply to users, causing significant inconvenience to factories and other power-consuming units, resulting in unplanned power outages and reduced power supply reliability. However, with increasing electricity demand and higher requirements for power supply reliability, uninterrupted operation has become the development direction of power systems. Developing a device that enables uninterrupted transformer oil replenishment is crucial for reducing unplanned power outage losses and improving power supply reliability.

[0003] However, existing technologies still have shortcomings, such as the following:

[0004] The existing equipment lacks effective emergency response measures to address potential leakage risks when the insulating sleeve seal malfunctions. This poses a significant safety hazard during uninterrupted refueling operations, making it difficult to guarantee the safety and reliability of the refueling process and increasing the risk of leakage problems disrupting normal uninterrupted refueling operations. Utility Model Content

[0005] The purpose of this invention is to provide a transformer oil filling uninterruptible device for transformers, in order to solve the problem of lack of effective emergency handling methods mentioned in the background art.

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

[0007] A transformer oil filling uninterruptible device for transformers includes a transformer, an oil tank installed on the outer wall of the transformer, a heat dissipation module installed on the outer wall of the oil tank, an oil conservator installed on one side of the oil tank, the oil conservator including an oil conservator body, an oil delivery pipe installed on the top of the outer wall of the oil conservator body, one end of the oil delivery pipe being installed to the top of the transformer, and an oil conservator fixing frame installed on the bottom of the oil conservator body.

[0008] Preferably, the transformer includes a ferromagnetic top plate, an insulating sleeve is installed on the top of the ferromagnetic top plate, and an electrically operated automatic nozzle is installed on the top of the ferromagnetic top plate.

[0009] Preferably, an insulating protective shell is inserted into the top of the electric pressing automatic nozzle, and an installation groove is provided in the middle of the top of the electric pressing automatic nozzle. A high-pressure silicon-based insulating spray is threaded into the inner side of the installation groove.

[0010] Preferably, a connecting pipe is installed at one end of the outer wall of the electric pressing automatic nozzle, an insulating disc is installed at the bottom of the inner cavity of the insulating sleeve, and an insulating hose is installed on the inner side of the outer wall of the insulating disc.

[0011] Preferably, one end of the insulating hose is installed in the inner cavity of the connecting pipe, a ferromagnetic wire end is installed on the inner side of the middle of the first-zone insulating disk, and a second-zone insulating disk is installed on the outer wall of the top of the first-zone insulating disk.

[0012] Preferably, the outer wall of the ferromagnetic wire end is sleeved with the outer wall of the second-zone insulating disk, a ferromagnetic connecting plate is installed on the top of the ferromagnetic wire end and on the inner side of the top of the second-zone insulating disk, and a mating plate is installed on the outer wall of the top of the second-zone insulating disk.

[0013] Preferably, a high-voltage transmission plate is fixedly sleeved on the inner side of the docking plate, a ferromagnetic docking plate is installed in the middle of the bottom of the high-voltage transmission plate, and a high-voltage sleeve is installed on the inner side of the top of the insulating sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When a leak occurs due to a problem with the sealing of the insulating sleeve, high-pressure silicon-based insulating spray is applied by electrically pressing the automatic nozzle. The insulating liquid reaches the insulating disc in Zone 1 through the connecting pipe and insulating hose, is sprayed onto the outer wall of the ferromagnetic wire end, and solidifies, providing temporary emergency insulation. This reduces the risk of leakage, ensures the safety of the uninterrupted filling process, and compensates for the lack of such emergency protection in the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the insulating sleeve of this utility model;

[0018] Figure 3 This is a schematic diagram of the high-voltage silicon-based insulating spray structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the insulating sleeve structure of this utility model.

[0020] In the diagram: 1. Transformer; 11. Ferromagnetic top plate; 12. Insulating sleeve; 121. Zone 2 insulating plate; 122. Zone 1 insulating plate; 13. Electric press-type automatic nozzle; 131. Mounting slot; 132. High-voltage silicon-based insulating spray; 133. Insulating protective shell; 14. Connecting pipe; 141. Insulating hose; 15. Ferromagnetic wire end; 151. Ferromagnetic connecting plate; 16. Connecting plate; 161. Ferromagnetic connecting plate; 162. High-voltage conduction plate; 17. High-voltage bushing; 2. Oil tank; 3. Oil conservator; 31. Oil conservator body; 32. Oil delivery pipe; 33. Oil conservator fixing frame; 4. Heat dissipation module. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 - Figure 4 As shown, a transformer oil filling uninterruptible device for transformers includes a transformer 1. An oil tank 2 is installed on the outer wall of the transformer 1 for storing transformer oil. A heat dissipation module 4 is installed on the outer wall of the oil tank 2 to dissipate heat from the oil tank 2. An oil conservator 3 is installed on one side of the oil tank 2. The oil conservator 3 can prevent vacuum or excessive pressure in the oil tank. The oil conservator 3 includes an oil conservator body 31. An oil delivery pipe 32 is installed on the top of the outer wall of the oil conservator body 31, and one end of the oil delivery pipe 32 is installed on the top of the transformer 1, thereby cooperating with the oil conservator body 31 to adjust the volume change of the transformer oil. An oil conservator fixing bracket 33 is installed on the bottom of the oil conservator body 31 so that the oil conservator body 31 can be fixed above the transformer.

[0023] It should be noted that in this embodiment, when the transformer oil is added, the temperature of the transformer 1 and the oil tank 2 will increase. Then, the heat dissipation module 4 is used to dissipate heat from the oil tank 2 to prevent the transformer 1 and the oil tank 2 from being too hot and affecting the operation. Furthermore, the oil conservator body 31 adjusts the volume change of the transformer oil according to the change of the oil tank 2.

[0024] Transformer 1 includes a ferromagnetic top plate 11, and an insulating sleeve 12 is installed on the top of the ferromagnetic top plate 11. A high-voltage bushing 17 is installed through the insulating sleeve 12. An electrically operated automatic nozzle 13 is installed on the top of the ferromagnetic top plate 11. The high-voltage silicon-based insulating spray 132 is sprayed by the electrically operated automatic nozzle 13. An insulating protective shell 133 is inserted into the top of the electrically operated automatic nozzle 13 to protect the high-voltage silicon-based insulating spray 132 and reduce external interference. A safety device is provided in the middle of the top of the electrically operated automatic nozzle 13. A mounting slot 131 is provided, and a high-pressure silicon-based insulating spray 132 is threadedly connected to the inner side of the mounting slot 131. This allows the high-pressure silicon-based insulating spray 132 to be sprayed and aligned with the inner side of the mounting slot 131. The threads are then rotated to fix the high-pressure silicon-based insulating spray 132 in place within the mounting slot 131. A connecting pipe 14 is installed at one end of the outer wall of the electrically operated automatic nozzle 13 to guide the spraying position of the high-pressure silicon-based insulating spray 132. An insulating disc 122 is installed at the bottom of the inner cavity of the insulating sleeve 12, and the outer side of the insulating disc 122... An insulating hose 141 is installed on the inner side of the wall. One end of the insulating hose 141 is connected to the inner cavity of the connecting pipe 14, allowing the insulating liquid entering the inner cavity of the connecting pipe 14 to enter the inner side of the top of the first-zone insulating disk 122. A ferromagnetic wire end 15 is installed on the inner side of the middle of the first-zone insulating disk 122, allowing the insulating liquid to be sprayed onto the outer wall of the ferromagnetic wire end 15. A second-zone insulating disk 121 is installed on the outer wall of the top of the first-zone insulating disk 122, and the outer wall of the ferromagnetic wire end 15 is sleeved with the outer wall of the second-zone insulating disk 121, so that the ferromagnetic wire end 15... The ferromagnetic connecting plate 151, which is installed on the top of the second-zone insulating disk 121 and inside the top, can be installed with the ferromagnetic mating plate 161. The mating plate 16 is installed on the outer wall of the top of the second-zone insulating disk 121, and the high-voltage conducting disk 162 is fixedly sleeved on the inner side of the mating plate 16. The ferromagnetic mating plate 161 is installed in the middle of the bottom of the high-voltage conducting disk 162. The ferromagnetic connecting plate 151 and the ferromagnetic mating plate 161 are fixed together by bolts. The high-voltage sleeve 17 is installed on the inner side of the top of the insulating sleeve 12 for connecting wires.

[0025] It should be noted that in this embodiment, when there is a problem with the sealing of the insulating sleeve 12, in order to prevent leakage, the electric pressing automatic nozzle 13 can be activated. By pressing the position of the high-voltage silicon-based insulating spray nozzle 132, the insulating liquid is guided into the insulating hose 141 through the docking pipe 14. The insulating hose 141 guides the insulating liquid into the inner cavity of the first insulating disc 122, so that the insulating liquid is sprayed onto the outer wall of the ferromagnetic wire end 15. The insulating liquid in the high-voltage silicon-based insulating spray solidifies on the outer wall of the ferromagnetic wire end 15, thereby achieving a temporary emergency function.

[0026] The working principle of this utility model is as follows: When the transformer oil is added to the transformer, the temperature of the transformer 1 and the oil tank 2 will increase. Then, the heat dissipation module 4 is used to dissipate heat from the oil tank 2 to prevent the transformer 1 and the oil tank 2 from being too hot and affecting the operation. In addition, the oil conservator body 31 adjusts the volume change of the transformer oil according to the change of the oil tank 2.

[0027] When the sealing of the insulating sleeve 12 fails, in case of leakage, the electric press automatic nozzle 13 can be activated to press the position of the high-voltage silicon-based insulating spray nozzle 132, so that the insulating liquid is guided into the insulating hose 141 through the docking pipe 14. The insulating hose 141 guides the insulating liquid into the inner cavity of the first-zone insulating disc 122, so that the insulating liquid is sprayed onto the outer wall of the ferromagnetic wire end 15. The insulating liquid in the high-voltage silicon-based insulating spray solidifies on the outer wall of the ferromagnetic wire end 15, thus achieving a temporary emergency function.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A transformer oil filling uninterruptible device for transformers, comprising a transformer (1), an oil tank (2) installed on the outer wall of the transformer (1), a heat dissipation module (4) installed on the outer wall of the oil tank (2), and an oil conservator (3) installed on one side of the oil tank (2), characterized in that: The oil conservator (3) includes an oil conservator body (31), an oil pipe (32) is installed on the top of the outer wall of the oil conservator body (31), one end of the oil pipe (32) is installed on the top of the transformer (1), and an oil conservator fixing frame (33) is installed on the bottom of the oil conservator body (31).

2. The transformer oil filling uninterruptible device according to claim 1, characterized in that: The transformer (1) includes a ferromagnetic top plate (11), an insulating sleeve (12) is installed on the top of the ferromagnetic top plate (11), and an electrically operated automatic nozzle (13) is installed on the top of the ferromagnetic top plate (11).

3. The transformer oil filling uninterruptible device for transformers according to claim 2, characterized in that: An insulating protective shell (133) is inserted into the top of the electric pressing automatic nozzle (13). An installation groove (131) is provided in the middle of the top of the electric pressing automatic nozzle (13). A high-voltage silicon-based insulating spray (132) is threaded into the inner side of the installation groove (131).

4. The transformer oil filling uninterruptible device for transformers according to claim 2, characterized in that: A connecting pipe (14) is installed at one end of the outer wall of the electric pressing automatic nozzle (13), and an insulating disk (122) is installed at the bottom of the inner cavity of the insulating sleeve (12). An insulating hose (141) is installed on the inner side of the outer wall of the insulating disk (122).

5. The transformer oil filling uninterruptible device for transformers according to claim 4, characterized in that: One end of the insulating hose (141) is installed in the inner cavity of the connecting pipe (14), a ferromagnetic wire end (15) is installed on the inner side of the middle part of the first-zone insulating disk (122), and a second-zone insulating disk (121) is installed on the outer wall of the top of the first-zone insulating disk (122).

6. The transformer oil filling uninterruptible device for transformers according to claim 5, characterized in that: The outer wall of the ferromagnetic wire end (15) is sleeved with the outer wall of the second-zone insulating disk (121). A ferromagnetic connecting plate (151) is installed on the top of the ferromagnetic wire end (15) and on the inner side of the top of the second-zone insulating disk (121). A docking plate (16) is installed on the outer wall of the top of the second-zone insulating disk (121).

7. A transformer oil filling uninterruptible device according to claim 6, characterized in that: A high-voltage transmission plate (162) is fixedly sleeved on the inner side of the docking plate (16), a ferromagnetic docking plate (161) is installed in the middle of the bottom of the high-voltage transmission plate (162), and a high-voltage sleeve (17) is installed on the inner side of the top of the insulating sleeve (12).