Transformer radiator and transformer

Abstract

The utility model relates to the technical field of transformer equipment, in particular to a transformer radiator and a transformer. Radiator oil guide pipes are arranged at the upper end and the lower end of the radiator body; the radiator oil guide pipes at the same end are communicated through an oil guide connecting pipe; the oil guide connecting pipe at one end is communicated with a transformer oil outlet connecting pipe; the oil guide connecting pipe at the other end is communicated with a transformer oil inlet connecting pipe through an oil outlet pipe; oil guide pipes are arranged between the oil guide connecting pipe and the transformer oil outlet connecting pipe and between the oil outlet pipe and the transformer oil inlet connecting pipe, first valves are arranged at the two ends of each oil guide pipe, and second valves are arranged on the oil guide pipes. The structure is high in transfer and installation efficiency, low in cost and short in period. The problems that an existing split type oil-immersed self-cooling radiator is long in transfer and installation period, and normal operation of a power grid is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer equipment technical field, concretely is a transformer radiator and transformer. BACKGROUND

[0002] The transformer is the device of transformation AC voltage, current and impedance, when the AC current is passed in the primary coil, the alternating magnetic flux is produced in the iron core, and the voltage is induced in the secondary coil. The transformer is composed of the iron core and the coil, and the coil has two or two or more windings, wherein the winding connected with the power source is called the primary coil, and the rest windings are called the secondary coil. In the generator, no matter the coil moves through the magnetic field or the magnetic field moves through the fixed coil, the induced potential can be generated in the coil, and the value of the magnetic flux is not changed in the two cases, but the amount of the magnetic flux intersecting the coil is changed, which is the principle of mutual induction. The transformer is a kind of device using electromagnetic mutual inductive effect to transform voltage, current and impedance.

[0003] The transformer will generate a large amount of heat in the working process. These heat mainly comes from the iron loss and copper loss in the transformer. The iron loss is the eddy current loss and hysteresis loss generated by the transformer core under the action of alternating magnetic field, which will cause the core to heat. And the copper loss is the resistance loss generated by the current passing through the transformer winding, which will also cause the winding to heat. The temperature that is too high will accelerate the aging of the internal insulation material of the transformer, reduce its insulation performance, and even cause insulation failure. At the same time, high temperature will also accelerate the oxidation speed of the transformer oil, produce oil sludge and acidic substances, further damage the insulation performance and heat dissipation capacity of the transformer. In addition, high temperature will also increase the resistance of the winding of the transformer, increase the copper loss, and form a vicious cycle. Therefore, in order to ensure the normal operation of the transformer and prolong its service life, effective heat dissipation measures must be taken to effectively reduce the temperature of the transformer and improve its working efficiency and service life.

[0004] Transformer cooling methods include natural cooling, forced air cooling, water cooling, evaporative cooling, and oil-immersed cooling. Natural cooling cools the transformer through natural convection and radiation, but its cooling effect is relatively poor, making it suitable for small, low-power transformers or environments with good operating conditions. Forced air cooling increases airflow speed by installing fans inside or outside the transformer, thereby accelerating heat dissipation. Water cooling utilizes the high specific heat capacity of water to remove heat generated by the transformer through water circulation. Evaporative cooling utilizes the principle that liquid water absorbs heat when it evaporates into water vapor inside the transformer. Oil-immersed cooling includes oil-immersed self-cooling, forced oil-air cooling, and forced oil-water cooling. In oil-immersed self-cooling, the transformer is filled with transformer oil, and heat is dissipated through the upward and downward convection of the oil. Transformers and reactors using oil-immersed self-cooling can be divided into those with integrated radiators and those with separate radiators. For split-type radiator structures, to ensure safety and stability during on-site transport, the transformer and radiator need to be transported separately. In existing radiator structures, because the oil circuits of the radiator and transformer are connected, the insulating oil inside the radiator needs to be drained during the disassembly and transport process, and the radiator and its oil conduit must be disconnected before transport. Furthermore, after transport and reinstallation, the radiator needs to undergo vacuuming, oil filling, and settling processes again. The entire transport and installation cycle is lengthy, inefficient, and impacts the normal operation of the power grid. Utility Model Content

[0005] In view of the problem that the transportation and installation cycle of the split oil-immersed self-cooling radiator in the prior art is long and affects the normal operation of the power grid, this utility model provides a transformer radiator and a transformer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a transformer radiator, including a plurality of oil guide pipes and a plurality of radiator bodies; radiator oil guide pipes are provided at both the upper and lower ends of the radiator bodies; the radiator oil guide pipes at the same end are connected by oil guide pipes; one end of the oil guide pipe is connected to the transformer oil outlet pipe; the other end of the oil guide pipe is connected to the transformer oil inlet pipe through the oil outlet pipe; oil guide pipes are provided between the oil guide pipes and the transformer oil outlet pipes, and between the oil outlet pipes and the transformer oil inlet pipes; a first valve is provided at both ends of each oil guide pipe, and a second valve is provided on the oil guide pipe.

[0008] Optionally, it also includes a bracket, on which the oil guide pipe is disposed.

[0009] Optionally, the bracket includes several vertical support rods and several horizontal beams, with adjacent support rods connected by the beams.

[0010] Optionally, the bracket further includes a reinforcing beam connected to the support rod.

[0011] Optionally, the reinforcing beam is an X-shaped reinforcing beam.

[0012] Optionally, the bracket is provided with a base at its bottom.

[0013] Optionally, the support frame is provided with hanging supports.

[0014] Optionally, the radiator oil guide pipe is connected to the oil guide connecting pipe via a flange.

[0015] Optionally, the first valve is a butterfly valve.

[0016] A transformer, comprising the aforementioned transformer radiator.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model discloses a transformer radiator, comprising several oil guide pipes and several radiator bodies. Oil guide pipes are provided at both the upper and lower ends of the radiator bodies. Oil guide pipes at the same end are connected via oil guide pipes. Besides serving as a bridge for oil flow, the oil guide pipes also act as a support structure for the radiator bodies, providing stable support and limiting their movement, thus maintaining high stability during transport. This design not only enhances the overall structural strength of the radiator but also reduces the risks during transport, ensuring stability. Furthermore, by providing oil guide pipes between the oil guide pipes and the transformer outlet pipe, and between the outlet pipe and the transformer inlet pipe, with a first valve at each end and a second valve on the oil guide pipe, this design allows for easy interruption of the oil flow between the radiator body and the transformer body during transport simply by closing the first valves at both ends. Subsequently, by vacuuming the oil guide pipes, they can be easily disassembled, thereby separating the transformer body from the radiator body. This transfer method is not only simple and convenient, but also avoids the cumbersome steps of draining the insulating oil from the entire radiator, which is required in traditional methods. Upon reassembly after transfer, simply connect the oil pipe, apply a vacuum, and open the first valve to complete the transfer and assembly. The method is simple, eliminates the need to drain the insulating oil from the entire radiator, and avoids the lengthy vacuuming, oil filling, and settling processes. It can quickly restore the oil circuit connection between the transformer and the radiator. The entire transfer and assembly process requires no complex operations or equipment support, greatly improving work efficiency. It largely achieves the overall transfer of the transformer and radiator, resulting in high transfer and installation efficiency, low cost, short cycle time, and minimal impact on the normal operation of the power grid.

[0019] The bracket provides support for the oil conduit and the transformer body.

[0020] The bracket includes several vertical support rods and several horizontal beams. The adjacent support rods are connected by the beams, which makes the structure stable and ensures the stability and safety of the radiator during transportation. At the same time, the structure is simple, easy to process, and low in cost.

[0021] The support structure also includes a reinforcing beam connected to the support rod. The reinforcing beam further enhances the stability of the structure and ensures the structural strength during overall transportation.

[0022] The reinforcing beam is an X-shaped reinforcing beam, which further ensures the stability of the structure.

[0023] The support frame is equipped with lifting ramps to facilitate lifting and transportation.

[0024] The radiator oil guide pipe is connected to the oil guide connecting pipe via a flange, which facilitates the initial installation and subsequent disassembly and maintenance while ensuring the stability of the connection between the two.

[0025] The first valve is a butterfly valve, which can effectively cut off the oil circuit between the radiator body and the transformer body.

[0026] This utility model also provides a transformer, including the aforementioned transformer radiator. During transport, the transformer does not require draining the insulating oil from the radiator. Upon reinstallation, it also eliminates the need for reassembly, vacuuming, oil filling, and waiting. This results in safe, efficient, and short-cycle transport. Attached Figure Description

[0027] Figure 1 This is an isometric view of a transformer radiator according to the present invention.

[0028] Figure 2 This is a left view of a transformer radiator according to the present invention.

[0029] Figure 3 This is a left view of the support and oil guide pipe connection structure of a transformer radiator according to the present invention.

[0030] Figure 4 This is a front view of the support and oil guide pipe connection structure of a transformer radiator according to the present invention.

[0031] Figure 5 This is a schematic diagram of the oil guide pipe structure of a transformer radiator according to the present invention.

[0032] Among them, 1-radiator oil guide pipe, 2-oil guide connecting pipe, 3-transformer oil outlet connecting pipe, 4-oil outlet pipe, 5-radiator body, 6-transformer oil inlet connecting pipe, 7-oil guide pipe, 8-first valve, 9-second valve, 10-base, 11-flange, 12-bracket, 121-support rod, 122-crossbeam, 123-reinforcing beam, 13-hanging climber. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The present invention will be further described in detail below with reference to specific embodiments. The description is for explanation and not limitation of the present invention.

[0040] See Figures 1 to 5 This utility model discloses a transformer heat dissipation method, including a plurality of oil guide pipes 2 and a plurality of radiator bodies 5; the radiator bodies 5 are arranged along both sides of the oil guide pipes 2, and radiator oil guide pipes 1 are provided at both the upper and lower ends of the radiator bodies 5; the radiator oil guide pipes 1 at the same end are connected to the oil guide pipes 2 through flanges 11; one end of the oil guide pipe 2 is connected to the transformer oil outlet pipe 3; the other end of the oil guide pipe 2 is connected to the transformer oil inlet pipe 6 through an oil outlet pipe 4; oil guide pipes 7 are provided between the oil guide pipes 2 and the transformer oil outlet pipe 3 and between the oil outlet pipe 4 and the transformer oil inlet pipe 6, and a first valve 8 is provided at both ends of the oil guide pipe 7, and a second valve 9 is provided on the oil guide pipe 7.

[0041] During the transfer process, simply close the first valves 8 at both ends of the oil guide pipe 7; discharge the insulating oil in the oil guide pipe 7 through the second valve 9; after the insulating oil in the oil guide pipe 7 is discharged, disassemble the oil guide pipe 7, one end of which can be disassembled to disconnect the transformer body from the radiator body 5, and transfer them separately; after the transfer to the destination, install the oil guide pipe 7, and evacuate through the second valve 9, then open the first valve 8 to complete the transfer of the transformer. The transfer is safe and efficient.

[0042] Example 1

[0043] See Figures 1 to 4 This utility model discloses a transformer heat dissipation method, including a bracket 12, several oil guide pipes 2 and several radiator bodies 5;

[0044] The bracket 12 supports the radiator body 5 and the oil guide pipe 2, and the oil guide pipe 2 is mounted on the bracket 12. The radiator body 5 is arranged along both sides of the oil guide pipe 2, and radiator oil guide pipes 1 are provided at both the upper and lower ends of the radiator body 5. The radiator oil guide pipes 1 at the same end of adjacent radiator bodies 5 are connected through the oil guide pipe 2. The oil guide pipe 2 connected to the radiator oil guide pipe 1 at one end of the radiator body 5 is connected to the transformer oil outlet pipe 3. The oil guide pipe 2 connected to the radiator oil guide pipe 1 at the other end of the radiator body 5 is connected to the transformer oil inlet pipe 6 through the oil outlet pipe 4. Oil guide pipes 7 are provided between the oil guide pipe 2 and the transformer oil outlet pipe 3, and between the oil outlet pipe 4 and the transformer oil inlet pipe 6. (See also...) Figure 5 Both ends of the oil guide pipe 7 are provided with a first valve 8, which is a butterfly valve, and a second valve 9 is provided on the oil guide pipe 7.

[0045] Preferably, the support 12 is provided with a hanging rod 13, the position of which corresponds to one of the crossbeams 122.

[0046] Example 2

[0047] See Figures 1 to 4 This utility model discloses a transformer heat dissipation method, including a bracket 12, several oil guide pipes 2 and several radiator bodies 5;

[0048] The bracket 12 includes several vertical support rods 121 and several horizontal beams 122. Adjacent support rods 121 are connected by the beams 122. A reinforcing beam 123 is connected to the side of the bracket 12. The reinforcing beam 123 is connected to the support rods 121 and is perpendicular to the direction of the beams 122. The oil guide pipe 2 is installed on the bracket 12 and is perpendicular to the beams 122. The radiator body 5 is arranged along both sides of the oil guide pipe 2, and both the upper and lower ends of the radiator body 5 are equipped with... A radiator oil guide pipe 1 is provided; the radiator oil guide pipes 1 at the same end of adjacent radiator bodies 5 are connected by an oil guide connecting pipe 2; the oil guide connecting pipe 2 connected to the radiator oil guide pipe 1 at one end of the radiator body 5 is connected to the transformer oil outlet connecting pipe 3; the oil guide connecting pipe 2 connected to the radiator oil guide pipe 1 at the other end of the radiator body 5 is connected to the transformer oil inlet connecting pipe 6 through an oil outlet pipe 4; oil guide pipes 7 are provided between the oil guide connecting pipe 2 and the transformer oil outlet connecting pipe 3, and between the oil outlet pipe 4 and the transformer oil inlet connecting pipe 6, see [reference]. Figure 5 Both ends of the oil guide pipe 7 are provided with a first valve 8, which is a butterfly valve, and a second valve 9 is provided on the oil guide pipe 7.

[0049] Optionally, the support 12 is provided with a hanging rod 13, the position of which corresponds to one of the crossbeams 122.

[0050] Example 3

[0051] See Figures 1 to 4 This utility model discloses a transformer heat dissipation method, including a bracket 12, several oil guide pipes 2 and several radiator bodies 5;

[0052] The bracket 12 includes four vertical support rods 121 and twelve horizontal beams 122. A base 10 is provided at the bottom of each support rod 121. Adjacent support rods 121 are connected by six horizontal beams 122. A reinforcing beam 123 is connected to the side of the bracket 12, and the reinforcing beam 123 is connected to the support rods 121 and perpendicular to the direction of the horizontal beams 122. An oil guide pipe 2 is installed on the bracket 12 and is perpendicular to the horizontal beams 122. The radiator body 5 is arranged along both sides of the oil guide pipe 2, and the radiator... Both the upper and lower ends of the main body 5 are provided with radiator oil guide pipes 1; the radiator oil guide pipes 1 at the same end of adjacent radiator bodies 5 are connected by oil guide connecting pipes 2; the oil guide connecting pipe 2 connected to the radiator oil guide pipe 1 at one end of the radiator body 5 is connected to the transformer oil outlet connecting pipe 3; the oil guide connecting pipe 2 connected to the radiator oil guide pipe 1 at the other end of the radiator body 5 is connected to the transformer oil inlet connecting pipe 6 through the oil outlet pipe 4; oil guide pipes 7 are provided between the oil guide connecting pipe 2 and the transformer oil outlet connecting pipe 3, and between the oil outlet pipe 4 and the transformer oil inlet connecting pipe 6, see [reference]. Figure 5 Both ends of the oil guide pipe 7 are provided with a first valve 8, which is a butterfly valve, and a second valve 9 is provided on the oil guide pipe 7.

[0053] Optionally, the support 12 is provided with a hanging rod 13, the position of which corresponds to one of the crossbeams 122.

[0054] Example 4

[0055] See Figures 1 to 4 This utility model discloses a transformer heat dissipation method, including a bracket 12, several oil guide pipes 2 and several radiator bodies 5;

[0056] The bracket 12 serves as the supporting structure for the entire radiator, comprising several vertical support rods 121 and several horizontal beams 122. Adjacent support rods 121 are connected by the beams 122, and the support rods 121 and beams 122 are connected by precision welding or bolts, ensuring the stability and load-bearing capacity of the bracket 12. To further enhance the stability of the bracket 12, a reinforcing beam 123 is connected to the side of the bracket 12. The reinforcing beam 123 is an X-shaped reinforcing beam, connected to the support rods 121 and perpendicular to the direction of the beams 122, forming a more stable triangular support structure, further improving the structural stability. A base 10 is provided at the bottom of the bracket 12 to support the support rods 121.

[0057] Four oil guide pipes 2 are provided, all mounted on the bracket 12 and perpendicular to the crossbeam 122; two oil guide pipes 2 are arranged in parallel at the upper end of the bracket 12, and the other two are arranged in parallel at the lower end of the bracket 12; 20 radiator bodies 5 are provided, arranged in 5 rows and 4 columns, with adjacent columns of radiator bodies 5 arranged along both sides of the oil guide pipes 2, and radiator oil guide pipes 1 are provided at both the upper and lower ends of each radiator body 5; the radiator oil guide pipe 1 at the upper end of adjacent radiator bodies 5 is connected to... The oil guide pipe 2 located at the upper end of the support 12 is connected to the radiator oil guide pipe 1 at the lower end of the adjacent radiator body 5, and is connected to the transformer oil outlet pipe 3 via the oil guide pipe 2 located at the lower end of the support 12; one of the oil guide pipes 2 located at the upper end of the support 12 is connected to the transformer oil outlet pipe 3 via the oil outlet pipe 4; oil guide pipes 7 are provided between the oil guide pipe 2 and the transformer oil outlet pipe 3, and between the oil outlet pipe 4 and the transformer oil inlet pipe 6, see [reference]. Figure 5 Both ends of the oil guide pipe 7 are provided with a first valve 8, which is a butterfly valve, and a second valve 9 is provided on the oil guide pipe 7.

[0058] Optionally, the support 12 is provided with a hanging rod 13, the position of which corresponds to one of the crossbeams 122.

[0059] This utility model provides a transformer, including the aforementioned transformer radiator. During transport, the transformer eliminates the need to drain the insulating oil from the radiator. Reinstallation also eliminates the need for reassembly, vacuuming, oil filling, and waiting processes. The transport is safe, efficient, and quick. During transport, the first valves 8 at both ends of the oil guide pipe 7 are closed. After closing the first valves 8, the insulating oil in the oil guide pipe 7 is drained. After draining the insulating oil from the oil guide pipe 7, the oil guide pipe 7 is disassembled, separating the transformer body from the radiator body, and they are transported separately. Upon arrival at the destination, the oil guide pipe 7 is reinstalled, a vacuum is drawn, and the first valves 8 are opened to complete the transformer transport. The method is simple, safe, and efficient.

[0060] In summary, this utility model provides a transformer radiator and a transformer. Through the design and structural configuration of the transformer radiator's oil circuit, it offers a novel solution for power system maintenance and upgrades by providing efficient, convenient, and safe transportation and installation capabilities during transformer operation. It not only significantly improves work efficiency and cost-effectiveness but also reduces the impact on the normal operation of the power grid, providing a strong guarantee for the stable operation of the power system.

[0061] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the technical solution of the present utility model in any way. Those skilled in the art should understand that, without departing from the spirit and principles of the present utility model, the technical solution can be modified and replaced in several simple ways, and these modifications and replacements are all within the scope of protection covered by the claims.

Claims

1. A transformer radiator, characterized in that, It includes several oil guide pipes (2) and several radiator bodies (5); the upper and lower ends of the radiator body (5) are provided with radiator oil guide pipes (1); the radiator oil guide pipes (1) at the same end are connected through oil guide pipes (2); one end of the oil guide pipe (2) is connected to the transformer oil outlet pipe (3); the other end of the oil guide pipe (2) is connected to the transformer oil inlet pipe (6) through the oil outlet pipe (4); oil guide pipes (7) are provided between the oil guide pipe (2) and the transformer oil outlet pipe (3) and between the oil outlet pipe (4) and the transformer oil inlet pipe (6); the two ends of the oil guide pipe (7) are provided with first valves (8) and second valves (9) are provided on the oil guide pipe (7).

2. The transformer radiator according to claim 1, characterized in that, It also includes a bracket (12), on which the oil guide pipe (2) is mounted.

3. The transformer radiator according to claim 2, characterized in that, The bracket (12) includes several vertical support rods (121) and several horizontal beams (122), and adjacent support rods (121) are connected by beams (122).

4. The transformer radiator according to claim 3, characterized in that, The bracket (12) also includes a reinforcing beam (123), which is connected to the support rod (121).

5. The transformer radiator according to claim 4, characterized in that, The reinforcing beam (123) is an X-shaped reinforcing beam.

6. The transformer radiator according to claim 5, characterized in that, The bracket (12) is provided with a base (10) at its bottom.

7. The transformer radiator according to claim 6, characterized in that, The support (12) is equipped with a hanging rod (13).

8. The transformer radiator according to claim 1, characterized in that, The radiator oil guide pipe (1) is connected to the oil guide pipe (2) through a flange (11).

9. The transformer radiator according to claim 1, characterized in that, The first valve (8) is a butterfly valve.

10. A transformer, characterized in that, Includes the transformer radiator as described in any one of claims 1-9.

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