Transformer device

Abstract

The utility model discloses transformer equipment, and relates to the technical field of transformers, the transformer equipment comprises an oil tank, a radiator and a diversion assembly, the top and the bottom of the oil tank are respectively provided with an oil outlet and an oil inlet; the radiator and the oil tank are spaced and arranged side by side, an oil inlet connecting pipe is arranged at the top of the radiator, an oil outlet connecting pipe communicated with the oil inlet connecting pipe is arranged at the bottom of the radiator, and the oil outlet connecting pipe is communicated with the oil inlet; the flow guide assembly comprises an oil guide pipe and a collecting pipe, the oil guide pipe is communicated between the oil outlet and the collecting pipe, and the collecting pipe is communicated with the oil inlet connecting pipe. According to the transformer equipment, the oil outlet connecting pipe at the bottom of the radiator is directly communicated with the bottom of the oil tank, it is guaranteed that effective heat dissipation circulation is formed between the radiator and the oil tank, meanwhile, the occupied area of the bottom of the transformer equipment is effectively reduced, and the transformer equipment can adapt to the installation environment under the condition that the space is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer device. Background Art

[0002] Oil-immersed transformers usually need to be equipped with a radiator to cool the oil in the transformer oil tank. The radiator is usually hung on the side of the oil-immersed transformer. In existing oil-immersed transformers, the internal heat dissipation oil circuits of the oil tank and the radiator are mostly connected by an upper and lower oil guide pipe structure, that is, an oil guide pipe and a manifold are set between the top of the oil tank and the top of the radiator, and an oil guide pipe and a manifold are also set between the bottom of the oil tank and the bottom of the radiator, resulting in a large area occupied by the bottom of the oil tank and the radiator, which is difficult to meet the installation requirements under space constraints. Utility Model Content

[0003] The main purpose of the utility model is to propose a transformer device, aiming to solve the technical problem that in the prior art, an oil guide pipe and a manifold are arranged between the bottom of the oil tank and the bottom of the radiator of the transformer device, resulting in a large footprint of the bottom of the oil tank and the radiator, making it difficult to meet the installation requirements under space constraints.

[0004] To achieve the above-mentioned purpose, the transformer equipment proposed in the utility model includes an oil tank, a radiator and a flow guide assembly, wherein the top and bottom of the oil tank are respectively provided with an oil outlet and an oil inlet; the radiator and the oil tank are spaced apart and arranged side by side, an oil inlet connecting pipe is arranged on the top of the radiator, an oil outlet connecting pipe connected to the oil inlet connecting pipe is arranged on the bottom of the radiator, and the oil outlet connecting pipe is connected to the oil inlet; the flow guide assembly includes an oil guide pipe and a manifold, the oil guide pipe is connected between the oil outlet and the manifold, and the manifold is connected to the oil inlet connecting pipe.

[0005] In one embodiment, the number of the oil outlets is multiple, the number of the oil guide pipes is consistent with the number of the oil outlets and they are connected one-to-one, and the multiple oil guide pipes are commonly connected to the manifold.

[0006] In one embodiment, a plurality of the oil guiding tubes are arranged in parallel and at intervals, and the manifold is perpendicular to each of the oil guiding tubes.

[0007] In one embodiment, the transformer device further comprises a support frame, the bottom of the support frame is supported on the wall of the oil tank, the top of the support frame supports the manifold, and the support frame is inclined from bottom to top in a direction away from the oil tank.

[0008] In one embodiment, a reinforcing plate is disposed at the bottom of the manifold, and the supporting frame is connected to the reinforcing plate.

[0009] In one embodiment, a flange is welded to the oil outlet, and the flow guide assembly further includes a first butterfly valve, an inlet of the first butterfly valve is connected to the flange, and an outlet of the first butterfly valve is connected to the oil guide pipe.

[0010] In one embodiment, the flow guide assembly further includes a second butterfly valve, an inlet of the second butterfly valve is connected to the manifold, an outlet of the second butterfly valve is connected to the oil inlet union pipe, and a diameter of the second butterfly valve is smaller than that of the first butterfly valve.

[0011] In one embodiment, a sealing gasket is provided between the inlet of the first butterfly valve and the flange and / or between the inlet of the second butterfly valve and the manifold.

[0012] In one embodiment, the manifold is a square steel pipe.

[0013] In one embodiment, the oil inlet connecting pipe is a gooseneck pipe.

[0014] The transformer equipment proposed by the utility model is provided with an oil guide pipe and a manifold only between the top of the oil tank and the top of the radiator, and no oil guide pipe and manifold are provided between the bottom of the oil tank and the bottom of the radiator; the oil outlet connecting pipe at the bottom of the radiator is directly connected to the bottom of the oil tank, which effectively reduces the floor space of the bottom of the transformer equipment while ensuring an effective heat dissipation cycle between the radiator and the oil tank, so that the transformer equipment can adapt to the installation environment with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 A schematic structural diagram of an embodiment of a transformer device provided by the utility model;

[0017] Figure 2 This is a structural schematic diagram of another embodiment of the transformer device provided by the utility model.

[0018] Description of Figure Numbers:

[0019] 10. Oil tank; 11. Tank wall; 121. Oil outlet; 122. Oil inlet; 20. Radiator; 21. Oil inlet connecting pipe; 22. Oil outlet connecting pipe; 30. Guide assembly; 31. Oil guide pipe; 32. Manifold; 33. First butterfly valve; 34. Second butterfly valve; 40. Support frame; 41. Reinforcement plate.

[0020] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] In the present invention, the description of the directions such as "upper" and "lower" is as follows: Figure 1 to Figure 2 The directions shown are for reference only and are used to explain the Figure 1 to Figure 2 The relative position relationship between the components in the shown posture. If the specific posture changes, the directional indication will also change accordingly.

[0025] In existing oil-immersed transformers, the oil tank and the internal heat dissipation oil circuit of the radiator are mostly connected by an upper and lower oil guide pipe structure, that is, an oil guide pipe and a manifold are arranged between the top of the oil tank and the top of the radiator, and an oil guide pipe and a manifold are also arranged between the bottom of the oil tank and the bottom of the radiator. As a result, the bottom of the oil tank and the radiator occupies a large area, which makes it difficult to meet the installation requirements under space constraints.

[0026] The utility model provides a transformer device, comprising an oil tank 10, a radiator 20 and a flow guide assembly 30, wherein an oil outlet 121 and an oil inlet 122 are respectively provided at the top and the bottom of the oil tank 10; the radiator 20 is spaced apart from and arranged side by side with the oil tank 10, an oil inlet connecting pipe 21 is provided at the top of the radiator 20, an oil outlet connecting pipe 22 connected to the oil inlet connecting pipe 21 is provided at the bottom of the radiator 20, and the oil outlet connecting pipe 22 is connected to the oil inlet 122; the flow guide assembly 30 comprises an oil guide pipe 31 and a manifold 32, the oil guide pipe 31 is connected between the oil outlet 121 and the manifold 32, and the manifold 32 is connected to the oil inlet connecting pipe 21.

[0027] See also Figure 1 The radiator 20 is hung on the outside of the oil tank, and the top of the radiator 20 is connected to the top of the oil tank 10 through the guide assembly 30. The oil in the oil tank 10 floats to the top of the oil tank 10 after being heated, and then flows to the oil guide pipe 31 through the oil outlet 121 at the top of the oil tank 10. The oil guide pipe 31 guides the hot oil to the manifold 32. The manifold 32 collects the hot oil and transports it to the oil inlet pipe 21 of the radiator 20, so that the hot oil enters the internal oil circuit of the radiator 20 for heat dissipation. The cold oil after heat dissipation and cooling flows directly into the bottom of the oil tank 10 from the oil outlet pipe 22 at the bottom of the radiator 20, forming a heat dissipation cycle, ensuring that the radiator 20 provides a continuous cooling effect on the oil tank 10.

[0028] The transformer device proposed by the utility model is provided with an oil guide pipe 31 and a manifold 32 only between the top of the oil tank 10 and the top of the radiator 20, and no oil guide pipe 31 and manifold 32 are provided between the bottom of the oil tank 10 and the bottom of the radiator 20. The oil outlet connecting pipe 22 at the bottom of the radiator 20 is directly connected to the bottom of the oil tank 10. While ensuring an effective heat dissipation cycle between the radiator 20 and the oil tank 10, the floor space of the bottom of the transformer device is effectively reduced, so that the transformer device can adapt to the installation environment under space-constrained conditions.

[0029] In one embodiment, there are multiple oil outlets 121 , the number of the oil guide pipes 31 is the same as that of the oil outlets 121 and they are connected one-to-one, and the multiple oil guide pipes 31 are connected to the manifold 32 .

[0030] It can be explained that a plurality of oil outlets 121 are provided on the top of the oil tank 10, and each oil outlet 121 is connected to the manifold 32 through a corresponding oil guide pipe 31. The hot oil at the top of the oil tank 10 can flow into the manifold 32 through the plurality of oil guide pipes 31 and be collected in the manifold 32, thereby avoiding blockage of the oil guide pipe 31 due to excessive hot oil flow in a short period of time, ensuring smooth outflow of the hot oil, and thus ensuring smooth heat dissipation circulation inside the transformer equipment.

[0031] In one embodiment, a plurality of oil guiding tubes 31 are arranged in parallel and at intervals, and the manifold 32 is perpendicular to each of the oil guiding tubes 31 .

[0032] It should be noted that the radiator 20 is hung on the side of the oil tank, and multiple oil pipes 31 are spaced and arranged side by side along the side of the oil tank, so that when the transformer equipment has a larger capacity oil tank 10, the hot oil in the oil tank 10 can quickly flow out of the oil tank 10 and be collected in the manifold 32 through the multiple oil pipes 31, ensuring smooth heat dissipation circulation.

[0033] In one embodiment, the transformer device further includes a support frame 40 , the bottom of the support frame 40 is supported on the body of the oil tank 10 , the top of the support frame 40 supports the manifold 32 , and the support frame 40 is tilted from bottom to top in a direction away from the oil tank 10 .

[0034] See also Figure 1 The manifold 32 is fixedly connected to the body of the oil tank 10 through the support frame 40. The support frame 40 provides a stable support for the manifold 32, effectively reducing the vibration or displacement of the manifold 32 caused by the hot oil flowing through the manifold 32, and ensuring the reliability of the structure of the manifold 32. It should be explained and illustrated that when the height of the oil tank 10 is limited, the manifold 32 is moved as far away from the oil tank 10 as possible by tilting the support frame 40 in the direction away from the oil tank 10, increasing the oil path length of the heat dissipation cycle, and making the radiator 20 have a larger center distance, thereby improving the heat dissipation effect.

[0035] In one embodiment, a reinforcing plate 41 is disposed at the bottom of the manifold 32 , and the support frame 40 is connected to the reinforcing plate 41 .

[0036] Furthermore, the reinforcing plate 41 is triangular in shape, and the reinforcing plate 41 reinforces the bottom of the manifold 32. The support frame 40 provides support for the manifold 32 by connecting the reinforcing plate 41. The reinforcing plate 41 can effectively disperse the gravity of the manifold 32 and transfer it to the support frame 40, thereby ensuring that the support frame 40 provides stable support for the manifold 32.

[0037] In one embodiment, a flange is welded to the oil outlet 121 , and the flow guide assembly 30 further includes a first butterfly valve 33 , the inlet of the first butterfly valve 33 is connected to the flange, and the outlet of the first butterfly valve 33 is connected to the oil guide pipe 31 .

[0038] It can be understood that the first butterfly valve 33 and the oil outlet 121 are connected by a flange to ensure that the first butterfly valve 33 and the oil outlet 121 are tightly connected, while facilitating the disassembly and assembly between the oil guide pipe 31 and the oil outlet 121. By setting the first butterfly valve 33, the flow of the oil guide pipe 31 can be timely controlled.

[0039] In one embodiment, the flow guide assembly 30 further includes a second butterfly valve 34 , the inlet of the second butterfly valve 34 is connected to the manifold 32 , the outlet of the second butterfly valve 34 is connected to the oil inlet union 21 , and the caliber of the second butterfly valve 34 is smaller than that of the first butterfly valve 33 .

[0040] It should be explained that the second butterfly valve 34 is arranged between the manifold 32 and the oil inlet joint pipe 21. The second butterfly valve 34 is arranged to facilitate secondary regulation of the flow in the oil circuit. The first butterfly valve 33 and the second butterfly valve 34 cooperate with each other to more flexibly adjust the flow distribution in the guide assembly 30 and the oil inlet joint pipe 21, thereby ensuring smooth heat dissipation circulation of the transformer equipment. The oil inlet joint pipe 21 at the top of the radiator 20 is connected to the manifold 32 through the second butterfly valve 34, and the oil outlet joint pipe 22 at the bottom of the radiator 20 is connected to the bottom of the oil tank 10 through the bottom valve. When the transformer equipment is loaded, unloaded or transported, the guide assembly 30 is kept on the oil tank 10, and the radiator 20 and the oil tank can be quickly loaded and unloaded only by disassembling the second butterfly valve 34 and the bottom valve, which is convenient for transportation. In one embodiment, the first butterfly valve 33 selects a DN150 butterfly valve or a DN200 butterfly valve in the prior art, and the second butterfly valve 34 selects a DN80 butterfly valve in the prior art.

[0041] In one embodiment, a sealing gasket is provided between the inlet of the first butterfly valve 33 and the flange and / or between the inlet of the second butterfly valve 34 and the manifold 32. It can be understood that the sealing gasket is provided to ensure the sealing of the connection and prevent the hot oil from leaking during the transportation process.

[0042] In one embodiment, the manifold 32 is a square steel tube. The manifold 32 can be a cold-drawn square steel tube in the prior art, which ensures that the manifold 32 has good heat resistance and stability and can continuously collect and guide the hot oil.

[0043] In one embodiment, the oil inlet pipe 21 is a gooseneck pipe. Figure 2 The oil inlet connecting pipe 21 adopts a gooseneck tube, so that the oil inlet connecting pipe 21 extends in a direction away from the oil outlet connecting pipe 22, thereby increasing the length of the oil circuit and improving the heat dissipation effect.

[0044] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transformer device, characterized in that: include: An oil tank, wherein the top and bottom of the oil tank are respectively provided with an oil outlet and an oil inlet; A radiator, the radiator and the oil tank are spaced apart and arranged side by side, an oil inlet connecting pipe is arranged on the top of the radiator, an oil outlet connecting pipe connected to the oil inlet connecting pipe is arranged on the bottom of the radiator, and the oil outlet connecting pipe is connected to the oil inlet; The flow guide component includes an oil guide pipe and a manifold, the oil guide pipe is connected between the oil outlet and the manifold, and the manifold is connected to the oil inlet connecting pipe.

2. The transformer device according to claim 1, characterized in that: The number of the oil outlets is multiple, the number of the oil guide pipes is consistent with the number of the oil outlets and they are connected one-to-one, and the multiple oil guide pipes are commonly connected to the manifold.

3. The transformer device according to claim 2, characterized in that: The plurality of oil guide tubes are spaced apart and arranged side by side, and the manifold is perpendicular to each of the oil guide tubes.

4. The transformer device according to claim 1, characterized in that: The transformer device also includes a support frame, the bottom of which is supported on the wall of the oil tank, the top of which supports the manifold, and the support frame is inclined from bottom to top in a direction away from the oil tank.

5. The transformer device according to claim 4, characterized in that: A reinforcing plate is arranged at the bottom of the manifold, and the supporting frame is connected to the reinforcing plate.

6. The transformer device according to any one of claims 1 to 5, characterized in that: The oil outlet is welded with a flange, and the flow guide assembly further includes a first butterfly valve, an inlet of the first butterfly valve is connected to the flange, and an outlet of the first butterfly valve is connected to the oil guide pipe.

7. The transformer device according to claim 6, characterized in that The flow guide assembly further includes a second butterfly valve, the inlet of the second butterfly valve is connected to the manifold, the outlet of the second butterfly valve is connected to the oil inlet union pipe, and the caliber of the second butterfly valve is smaller than that of the first butterfly valve.

8. The transformer device according to claim 7, characterized in that A sealing gasket is provided between the inlet of the first butterfly valve and the flange and / or between the inlet of the second butterfly valve and the manifold.

9. The transformer device according to any one of claims 1 to 5, characterized in that: The manifold is a square steel pipe.

10. The transformer device according to any one of claims 1 to 5, characterized in that: The oil inlet connecting pipe is a gooseneck pipe.

Images