Transformer with heat dissipation device

Abstract

The invention provides a transformer with a heat dissipation device. The transformer comprises a transformer oil tank, a heat dissipation oil tank and heat dissipation strips. The transformer oil tank is filled with transformer oil. An inlet of the heat dissipation oil tank is communicated with an oil outlet of the transformer oil tank through an oil inlet pipe, an outlet of the heat dissipation oil tank is communicated with an oil inlet of the transformer oil tank through an oil outlet pipe, and a switch valve is arranged on the oil inlet pipe and / or the oil outlet pipe. Transformer oil continuously enters the heat dissipation oil tank through the oil inlet pipe and then is conveyed into the transformer oil tank through the oil outlet pipe. The heat dissipation oil tank is additionally arranged outside the transformer oil tank, circulation of transformer oil between the transformer oil tank and the heat dissipation oil tank is achieved through the oil inlet pipe and the oil outlet pipe, the heat dissipation strips are arranged on the heat dissipation oil tank, and therefore the purpose of accelerating heat dissipation is achieved, and the heat dissipation efficiency of the heat dissipation device can be effectively improved; the size of the heat dissipation device is reduced under the condition of the same heat dissipation capacity, and then the size of the whole transformer is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer heat dissipation, and in particular relates to a transformer with a heat dissipation device. Background Art

[0002] In recent years, with the rapid development of power transmission and transformation projects in my country, the capacity of transformers has continued to rise, and the size of transformers has also continued to increase with the increase in capacity. The heat dissipation device plays a vital role in the transformer. Its main function is to help dissipate the heat generated during the operation of the transformer, thereby maintaining the transformer in a safe operating temperature range.

[0003] The size of the radiator directly affects the size of the transformer, which puts higher requirements on the volume and heat dissipation efficiency of the heat dissipation device on the transformer.

[0004] Therefore, how to improve the heat dissipation efficiency of the heat dissipation device is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a transformer with a heat dissipation device, which can effectively improve the heat dissipation efficiency of the heat dissipation device and reduce the size of the transformer.

[0006] In order to solve the above technical problems, the present invention provides a transformer with a heat dissipation device, comprising:

[0007] A transformer oil tank, wherein the transformer oil tank contains transformer oil;

[0008] A heat dissipation oil tank, wherein the inlet of the heat dissipation oil tank is connected to the oil outlet of the transformer oil tank through an oil inlet pipe, and the outlet of the heat dissipation oil tank is connected to the oil inlet of the transformer oil tank through an oil outlet pipe, and a switch valve is provided on the oil inlet pipe and / or the oil outlet pipe, and transformer oil continuously enters the heat dissipation oil tank through the oil inlet pipe and is then transported to the transformer oil tank through the oil outlet pipe;

[0009] A heat dissipation strip is arranged on the heat dissipation oil tank and is used to dissipate heat from the transformer oil in the heat dissipation oil tank.

[0010] Optionally, in the above-mentioned transformer with a heat dissipation device, one end of the heat dissipation strip passes through the heat dissipation oil tank and extends into the interior of the heat dissipation oil tank, and the other end of the heat dissipation strip is exposed to the outside of the heat dissipation oil tank.

[0011] Optionally, in the above transformer with the heat dissipation device, a cavity is opened inside the heat dissipation strip, a capillary structure is arranged on the inner wall of the cavity, and the interior of the capillary structure is filled with a coolant.

[0012] Optionally, in the above transformer with a heat dissipation device, the heat dissipation oil tank has an opening, and the opening is sealed and connected to the heat dissipation strip via a fastener.

[0013] Optionally, in the above-mentioned transformer with a heat dissipation device, the heat dissipation strips are arranged on the outer wall of the heat dissipation oil tank.

[0014] Optionally, in the above transformer with a heat dissipation device, the heat dissipation strip is a heat dissipation strip made of a metal alloy.

[0015] Optionally, in the above-mentioned transformer with a heat dissipation device, a power pump is connected in series to the oil inlet pipe and / or the oil outlet pipe.

[0016] Optionally, in the above transformer with a heat dissipation device, the heat dissipation strip is a plurality of heat dissipation fins that are spaced apart and arranged side by side.

[0017] Optionally, in the above-mentioned transformer with a heat dissipation device, both ends of the oil inlet pipe are respectively installed on the top of the transformer oil tank and the heat dissipation oil tank.

[0018] Optionally, in the above-mentioned transformer with a heat dissipation device, two ends of the oil outlet pipe are respectively installed at the bottom of the transformer oil tank and the heat dissipation oil tank.

[0019] The present invention provides a transformer with a heat dissipation device, which has the following beneficial effects:

[0020] By adding an additional heat dissipation oil tank outside the transformer oil tank, the transformer oil is circulated between the transformer oil tank and the heat dissipation oil tank through the oil inlet pipe and the oil outlet pipe, and by arranging heat dissipation strips on the heat dissipation oil tank, the purpose of accelerating the heat dissipation is achieved, the heat dissipation efficiency of the heat dissipation device can be effectively improved, the volume of the heat dissipation device can be reduced under the condition of the same heat dissipation amount, and then the volume of the entire transformer is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of a transformer with a heat dissipation device provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure of a transformer oil tank provided in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the structure of a heat dissipation device provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a heat dissipation oil tank provided in an embodiment of the present invention;

[0026] Figure 5 A schematic structural diagram of a heat dissipation strip provided in an embodiment of the present invention.

[0027] In the above picture:

[0028] 100- Transformer oil tank;

[0029] 210-heat dissipation oil tank; 220-heat dissipation strip; 230-fastener; 240-switch valve;

[0030] 300- Transformer oil. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] The core of the present invention is to provide a transformer with a heat dissipation device, which can effectively improve the heat dissipation efficiency of the heat dissipation device and thus reduce the size of the transformer.

[0033] In order to enable those skilled in the art to better understand the technical solution provided by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Specifically, please refer to Figure 1-Figure 5 The present invention provides a transformer with a heat dissipation device, including a transformer oil tank 100, a heat dissipation oil tank 210 and a heat dissipation strip 220.

[0035] The transformer oil tank 100 contains transformer oil 300, which plays an important role in insulation, heat dissipation, cooling, arc extinguishing and corrosion prevention of the transformer oil tank 100, and is crucial to ensuring the normal operation of the transformer and the stability of the power system.

[0036] The inlet of the heat dissipation oil tank 210 is connected to the oil outlet of the transformer oil tank 100 through the oil inlet pipe, and the outlet of the heat dissipation oil tank 210 is connected to the oil inlet of the transformer oil tank 100 through the oil outlet pipe. The oil inlet pipe and / or the oil outlet pipe are provided with a switch valve 240. In particular, the switch valve 240 can also be installed on the transformer oil tank. The transformer oil 300 continuously enters the heat dissipation oil tank 210 through the oil inlet pipe and is then transported to the transformer oil tank 100 through the oil outlet pipe.

[0037] The heat dissipation strip 220 is disposed on the heat dissipation oil tank 210 for dissipating heat from the transformer oil 300 in the heat dissipation oil tank 210 .

[0038] The transformer with a heat dissipation device provided in the present solution has a heat dissipation oil tank 210 additionally provided outside the transformer oil tank 100, and the transformer oil 300 is circulated between the transformer oil tank 100 and the heat dissipation oil tank 210 through an oil inlet pipe and an oil outlet pipe. A heat dissipation strip 220 is provided on the heat dissipation oil tank 210, thereby achieving the purpose of accelerating heat dissipation, effectively improving the heat dissipation efficiency of the heat dissipation device, reducing the volume of the heat dissipation device under the condition of the same heat dissipation amount, and thus reducing the volume of the entire transformer.

[0039] In a specific embodiment, one end of the heat dissipation bar 220 passes through the heat dissipation oil tank 210 and extends into the heat dissipation oil tank 210 , and the other end of the heat dissipation bar 220 is exposed outside the heat dissipation oil tank 210 .

[0040] Furthermore, a cavity is provided inside the heat dissipation strip 220, and a capillary structure is provided on the inner wall of the cavity, and the interior of the capillary structure is filled with a coolant. The inner cavity of the heat dissipation strip 220 adopts a porous through-structure, and the coolant is converted through the gas phase, and the hot oil energy on the upper part of the transformer is brought to the outside of the heat dissipation oil tank 210, so as to achieve the purpose of rapid heat dissipation.

[0041] The transformer oil 300 emits heat when working, and the heat is transferred to the other end exposed to the heat dissipation tank 210 through one end of the heat dissipation strip 220 located in the heat dissipation oil tank 210, wherein a part of the heat is directly transferred and dissipated through the shell of the heat dissipation oil tank 210, and the other part of the heat contacts the coolant through the capillary structure, and the coolant volatilizes and absorbs, and the volatilized gas phase coolant fills one end of the heat dissipation strip 220, and the gas phase coolant contacts the wall surface of the heat dissipation strip 220 to dissipate the heat, and becomes a liquid phase coolant, and flows to the other end of the heat dissipation strip 220 through the capillary action of the capillary structure and the gravity of the coolant itself, forming a cycle, and cooperates with the heat dissipation strip 220 and its own capillary structure to improve the heat dissipation efficiency and ensure the service life of the transformer.

[0042] Based on the above specific embodiment, the heat sink oil tank 210 has an opening, and the opening is sealed and connected to the heat sink bar 220 through a fastener 230. The fastener 230 is installed with the heat sink bar 220 and the heat sink oil tank 210 in a detachable connection manner, so as to reduce the workload of on-site maintenance and installation, and is suitable for modernized and newly built transformers.

[0043] The fastener 230 may be a clamp, a flange or other fastening mechanisms.

[0044] Or in another specific embodiment, the heat dissipation strips 220 are arranged on the outer wall of the heat dissipation oil tank 210 to dissipate heat only on the surface of the heat dissipation oil tank 210 .

[0045] In order to improve the heat dissipation effect, the heat dissipation bar 220 is a heat dissipation bar made of metal alloy.

[0046] At the same time, a power pump is connected in series to the oil inlet pipe and / or the oil outlet pipe, and the circulation speed of the transformer oil 300 can be increased by the power pump.

[0047] like Figure 1 As shown, the heat dissipation bar 220 is a plurality of heat dissipation fins arranged at intervals and side by side.

[0048] In order to further improve the heat exchange effect of transformer oil 300 during circulation, the two ends of the oil inlet pipe are respectively installed on the top of the transformer oil tank 100 and the heat dissipation oil tank 210. The two ends of the oil outlet pipe are respectively installed on the bottom of the transformer oil tank 100 and the heat dissipation oil tank 210.

[0049] The transformer oil 300 in the transformer oil tank 100 flows into the heat dissipation oil tank 210 from the upper end through the oil inlet pipe and then dissipates heat through the heat dissipation strip 220. After that, the oil temperature of the transformer oil 300 decreases and enters the transformer oil tank 100 from the switch valve 240 at the lower end through the oil outlet pipe, completing the hot oil cooling.

[0050] In summary, the present invention achieves the purpose of rapid cooling of the thermal transformer oil 300 in the heat dissipation oil tank 220 by arranging the heat dissipation strip 220 on the heat dissipation oil tank 210, thereby effectively improving the heat dissipation efficiency of the heat dissipation device and realizing the miniaturization design of the heat dissipation device and the transformer, which is simpler and more conducive to reducing the heat dissipation area of ​​the transformer.

[0051] In addition, the lightweight and high-efficiency heat sink of the present invention can reduce the purchase cost of the heat sink, reduce the amount of transformer oil 300, reduce the installation strength, save installation time, and have good economic and social benefits, making the transformer and its heat sink easier to install, saving more on-site installation space, and more reliable quality.

[0052] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0054] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0055] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A transformer with a heat dissipation device, characterized in that: include: A transformer oil tank (100), wherein the transformer oil tank (100) contains transformer oil (300); a heat dissipation oil tank (210), wherein the inlet of the heat dissipation oil tank (210) is communicated with the oil outlet of the transformer oil tank (100) via an oil inlet pipe, and the outlet of the heat dissipation oil tank (210) is communicated with the oil inlet of the transformer oil tank (100) via an oil outlet pipe, and a switch valve (240) is provided on the oil inlet pipe and / or the oil outlet pipe, and transformer oil (300) continuously enters the heat dissipation oil tank (210) via the oil inlet pipe and is then transported into the transformer oil tank (100) via the oil outlet pipe; A heat dissipation bar (220), the heat dissipation bar (220) being arranged on the heat dissipation oil tank (210) and being used to dissipate heat from the transformer oil (300) in the heat dissipation oil tank (210).

2. The transformer with heat dissipation device according to claim 1, characterized in that: One end of the heat dissipation bar (220) passes through the heat dissipation oil tank (210) and extends into the interior of the heat dissipation oil tank (210), and the other end of the heat dissipation bar (220) is exposed outside the heat dissipation oil tank (210).

3. The transformer with heat dissipation device according to claim 2, characterized in that: A cavity is provided inside the heat dissipation strip (220), a capillary structure is provided on the inner wall of the cavity, and a coolant is filled inside the capillary structure.

4. The transformer with heat dissipation device according to claim 2, characterized in that: The heat dissipation oil tank (210) has an opening, and the opening is sealedly connected to the heat dissipation strip (220) via a fastener (230).

5. The transformer with heat dissipation device according to claim 1, characterized in that: The heat dissipation strip (220) is arranged on the outer wall of the heat dissipation oil tank (210).

6. The transformer with heat dissipation device according to claim 1, characterized in that: The heat dissipation strip (220) is a heat dissipation strip made of a metal alloy.

7. The transformer with heat dissipation device according to claim 1, characterized in that: A power pump is connected in series on the oil inlet pipe and / or the oil outlet pipe.

8. The transformer with heat dissipation device according to claim 1, characterized in that: The heat dissipation strips (220) are a plurality of heat dissipation fins that are spaced apart and arranged side by side.

9. The transformer with heat dissipation device according to claim 1, characterized in that: Both ends of the oil inlet pipe are respectively mounted on the top of the transformer oil tank (100) and the top of the heat dissipation oil tank (210).

10. The transformer with heat dissipation device according to claim 1, characterized in that: Both ends of the oil outlet pipe are respectively installed at the bottom of the transformer oil tank (100) and the heat dissipation oil tank (210).

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