Oil tank of oil-immersed transformer

Abstract

The utility model discloses an oil-immersed transformer oil tank which comprises a bottom plate, a buffer structure arranged at the top of the bottom plate, an oil tank body arranged at the top of the buffer structure, an oil tank cover arranged at the top of the oil tank body, heat dissipation structures arranged on the surfaces of the front end and the rear end of the oil tank body, a cooling structure arranged on one side of the oil tank body and a transformer arranged in the oil tank body. Compared with the prior art, the transformer oil tank has the advantages that vibration of the transformer oil tank during hoisting transportation can be relieved, meanwhile, the cooling fins which can be detached in advance can prevent the transformer oil tank from being collided and damaged during installation and transportation, working oil in the oil tank can be cooled, and the cooling effect on the interior of the oil tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an oil-immersed transformer oil tank. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, the secondary coil and the iron core (magnetic core). Transformers are currently more important equipment in power construction and have been widely installed in various parts of my country. Oil-immersed transformers use mineral oil as the main insulating medium and cooling medium of the transformer. The main components of the transformer are immersed in an oil tank filled with mineral oil, and the wiring terminals are led out from the top of the oil tank cover. Compared with other types of transformers, oil-immersed transformers have a relatively simple structure, relatively low cost, and low maintenance cost. Therefore, they are widely used and are an indispensable electrical equipment in the current power supply network system. The body of the oil-immersed transformer is installed in an oil tank filled with transformer oil, and the oil tank is welded with steel plates.

[0003] The patent number CN217114064U in the prior art discloses an oil-immersed transformer oil tank, including an oil tank body, a tank cover is provided on the upper surface of the oil tank body, and heat fins are provided on the front and rear sides of the oil tank body. A fixing plate 1 is fixedly connected to the front and rear surfaces of the oil tank body and located above the heat fins, an electric push rod is fixedly connected inside the fixing plate 1, a mounting block is fixedly connected to the output end of the electric push rod, a mounting plate is fixedly connected to the inner side of the mounting block, and a mounting rod is fixedly connected to the rear side of the mounting plate. In the utility model, by providing the mounting block and the mounting rod, dust on the heat fins can be removed to avoid affecting the heat dissipation effect of the heat fins, thereby improving the practicality of the device. By providing the hoisting mechanism, the rotating plate can be used to facilitate personnel to move the oil tank body and also facilitate hoisting the oil tank body, and it is also convenient to fold the rotating plate to reduce the occupied space.

[0004] However, the patents in the prior art have the following disadvantages:

[0005] (1) The oil-immersed transformer tank in the prior art cannot protect the tank well. During hoisting and transportation, the tank is easily shaken or falls to the ground, which can easily generate excessive impact force, causing vibration of internal components, resulting in collision and damage to the internal components, affecting the use of the transformer. At the same time, since the heat dissipation fins of the transformer tank are usually exposed to the outside, the heat dissipation fins are easily bumped during the installation of the transformer tank, causing the paint on the edges of the heat dissipation fins to fall off and rust.

[0006] (2) The prior art oil-immersed transformer oil tank has a simple heat dissipation structure, in which heat dissipation fins are only arranged on the outer wall of the oil tank body. Therefore, the cooling and heat dissipation effect of the working oil near the side wall of the oil tank body is better, while the heat dissipation and cooling effect of the working oil inside the oil tank, especially in the center of the oil tank, needs to be improved. The heat dissipation is uneven, and a lot of heat is easily accumulated inside the working oil, thereby affecting the use effect. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a heat dissipation fin which can not only reduce the vibration of the transformer oil tank during hoisting and transportation, but also can be disassembled in advance to prevent it from being damaged by bumps during installation and transportation, and can also dissipate heat and cool the working oil inside the oil tank to improve the heat dissipation effect inside the oil tank.

[0008] In order to solve the above problems, the technical solution of the utility model is: an oil-immersed transformer oil tank, comprising a bottom plate, a buffer structure is provided on the top of the bottom plate, an oil tank body is provided on the top of the buffer structure, an oil tank cover is provided on the top of the oil tank body, a heat dissipation structure is provided on the front and rear ends of the oil tank body, a cooling structure is provided on one side of the oil tank body, and a transformer is provided inside the oil tank body;

[0009] The buffer structure comprises a damper, and a spring is sleeved on the outer side of the damper;

[0010] The cooling structure includes a cold water tank, a water pump is fixedly connected to one side of the top of the cold water tank, an output end of the water pump is fixedly connected to a water outlet pipe, the other end of the water outlet pipe extends into the interior of the oil tank body and the end is fixedly connected to a cooling pipe, the other end of the cooling pipe is fixedly connected to a return pipe, the other end of the return pipe extends out of the oil tank body and the end is fixedly connected to a cooler, and the output end of the cooler is connected to the interior of the cold water tank.

[0011] Furthermore, the damper is fixedly connected to the four corners of the top of the bottom plate and the other end is fixedly connected to the bottom of the oil tank body, and the two ends of the spring are fixedly connected to the bottom plate and the oil tank body respectively.

[0012] Furthermore, four corners of the top of the fuel tank cover are fixedly connected with hanging blocks, and the side surfaces of the hanging blocks are provided with hanging holes.

[0013] Furthermore, the heat dissipation structure includes a plurality of heat dissipation fins, the top and bottom of the heat dissipation fins are fixedly connected with L-shaped connecting plates, fixing bolts are provided on both sides of the L-shaped connecting plates, and the heat dissipation fins are installed on the front and rear end surfaces of the oil tank body through fixing bolts.

[0014] Furthermore, the cooling tube is a rectangular structure, and a plurality of connecting tubes are fixedly connected inside the cooling tube.

[0015] The advantages of the utility model compared with the existing technology are:

[0016] (1) The utility model is provided with a buffer structure and a heat dissipation structure. When the oil tank body shakes or falls to the ground and is vibrated during hoisting or transportation, the vibration of the oil tank body is reduced by the coordinated use of the damper and the spring, thereby improving the stability of the oil tank body. During transportation and installation, the L-shaped connecting plate is removed from the surface of the oil tank body in advance, and the heat dissipation fins are separated from the oil tank body, thereby preventing the thinner heat dissipation fins from being deformed and damaged by collision during transportation and installation, thereby achieving a protective effect.

[0017] (2) The utility model is provided with a heat dissipation structure and a cooling structure. By arranging heat dissipation fins on the outside of the oil tank body, the oil tank body as a whole is cooled and radiated from the outside. By arranging a cold water tank on the outside of the oil tank body, when working, the cold water in the cold water tank passes through the water pump, the water outlet pipe, the cooling pipe, the return pipe and the cooler in sequence and returns to the cold water tank, thereby forming a cycle. When the cold water flows through the cooling pipe, the working oil in the oil tank body in contact with the cooling pipe can be cooled, thereby improving the cooling effect on the inside of the working oil and avoiding excessively high temperature inside the working oil, which affects the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a three-dimensional oil tank of an oil-immersed transformer Figure 1 .

[0019] Figure 2 The utility model is a three-dimensional oil tank of an oil-immersed transformer Figure 2 .

[0020] Figure 3 The utility model is a side view of an oil tank of an oil-immersed transformer.

[0021] Figure 4 The utility model is a front sectional view of an oil tank of an oil-immersed transformer.

[0022] Figure 5 The utility model is a top sectional view of an oil tank of an oil-immersed transformer.

[0023] As shown in the figure: 1. Base plate; 2. Buffer structure; 21. Damper; 22. Spring; 3. Oil tank body; 4. Oil tank cover; 41. Lifting block; 42. Lifting hole; 5. Heat dissipation structure; 51. Heat dissipation fins; 52. L-shaped connecting plate; 53. Fixing bolts; 6. Cooling structure; 61. Cold water tank; 62. Water outlet pipe; 63. Water pump; 64. Cooling pipe; 65. Connecting pipe; 66. Return pipe; 67. Cooler; 7. Transformer. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0025] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0026] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0027] like Figures 1 to 5 As shown, an oil-immersed transformer oil tank comprises a base plate 1, a buffer structure 2 is arranged on the top of the base plate 1, the buffer structure 2 comprises a damper 21, the damper 21 is fixedly connected to the four corners of the top of the base plate 1 and the other end is fixedly connected to the bottom of the tank body 3, a spring 22 is sleeved on the outer side of the damper 21, and the two ends of the spring 22 are respectively fixedly connected to the base plate 1 and the tank body 3. When the tank body 3 is shaken or falls to the ground and is vibrated during hoisting or transportation, the vibration of the tank body 3 is reduced by the coordinated use of the damper 21 and the spring 22, thereby improving the stability of the tank body 3.

[0028] An oil tank body 3 is provided on the top of the buffer structure 2, and an oil tank cover 4 is provided on the top of the oil tank body 3. Four corners of the top of the oil tank cover 4 are fixedly connected with lifting blocks 41, and the side surface of the lifting block 41 is provided with a lifting hole 42. When in use, the device is lifted and moved by passing the lifting rope through the lifting hole 42, so as to facilitate the installation of the transformer oil tank.

[0029] A heat dissipation structure 5 is provided on the front and rear end surfaces of the oil tank body 3, and the heat dissipation structure 5 includes heat dissipation fins 51. There are a plurality of heat dissipation fins 51. The heat dissipation fins 51 are convenient for cooling and dissipating the entire oil tank body 3 from the outside. The top and bottom of the heat dissipation fins 51 are fixedly connected with L-shaped connecting plates 52. Fixing bolts 53 are provided on both sides of the L-shaped connecting plate 52. The heat dissipation fins 51 are installed on the front and rear end surfaces of the oil tank body 3 through the fixing bolts 53. When in use, the L-shaped connecting plate 52 is removed from the surface of the oil tank body 3 in advance, and the heat dissipation fins 51 are separated from the oil tank body 3 to prevent the thinner heat dissipation fins 51 from being deformed and damaged by collision during transportation and installation, thereby achieving a protective effect.

[0030] A cooling structure 6 is provided on one side of the oil tank body 3, and a transformer 7 is provided inside the oil tank body 3. The cooling structure 6 includes a cold water tank 61, and a water pump 63 is fixedly connected to one side of the top of the cold water tank 61. The output end of the water pump 63 is fixedly connected to a water outlet pipe 62, and the other end of the water outlet pipe 62 extends into the oil tank body 3 and is fixedly connected to a cooling pipe 64 at the end. The cooling pipe 64 is a rectangular structure, and a plurality of connecting pipes 65 are fixedly connected to the cooling pipe 64. The other end of the cooling pipe 64 is fixedly connected to a return pipe 66, and the other end of the return pipe 66 extends out of the oil tank body 3 and is fixedly connected to a cooler 67 at the end. The output end of the cooler 67 is connected to It is connected to the inside of the cold water tank 61. When in use, the cooling pipe 64 is coiled into a rectangle in the oil tank body 3, and is connected through multiple connecting pipes 65 arranged inside the rectangle, so as to increase the contact area between the cooling pipe 64 and the working oil. The cold water in the cold water tank 61 returns to the cold water tank 61 through the water pump 63, the water outlet pipe 62, the cooling pipe 64, the return pipe 66 and the cooler 67 in sequence, thus forming a cycle. When the cold water flows through the cooling pipe 64, the working oil in the oil tank body 3 in contact with the cooling pipe 64 can be cooled, thereby improving the cooling effect on the inside of the working oil and avoiding the internal temperature of the working oil being too high, which affects the use effect.

[0031] In specific use, first remove the L-shaped connecting plate 52 from the surface of the oil tank body 3, separate the heat dissipation fins 51 from the oil tank body 3, and prevent the thin heat dissipation fins 51 from being deformed and damaged by collision during transportation and installation. Then pass the hoisting rope through the hoisting hole 42 to hoist and move the device. When the oil tank body 3 shakes or falls to the ground and is vibrated during hoisting or transportation, the vibration of the oil tank body 3 is reduced by the coordinated use of the damper 21 and the spring 22, thereby improving the stability of the oil tank body 3. Then, the L-shaped connecting plate 52 is installed on the oil tank body 3 by the fixing bolts 53. On the front and rear end surfaces, when the transformer is working, the heat dissipation fins 51 cool down and dissipate the heat of the oil tank body 3 as a whole from the outside, and then the water pump 63 and the cooler 67 are started, and the cold water in the cold water tank 61 returns to the cold water tank 61 through the water pump 63, the water outlet pipe 62, the cooling pipe 64, the return pipe 66 and the cooler 67 in sequence, thus forming a cycle. When the cold water flows through the cooling pipe 64, the working oil inside the oil tank body 3 in contact with the cooling pipe 64 and the connecting pipe 65 can be cooled, thereby improving the cooling effect on the inside of the working oil and avoiding excessively high internal temperature of the working oil, which affects the use effect.

[0032] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An oil-immersed transformer tank, comprising a bottom plate (1), characterized in that: A buffer structure (2) is provided on the top of the bottom plate (1), a fuel tank body (3) is provided on the top of the buffer structure (2), a fuel tank cover (4) is provided on the top of the fuel tank body (3), heat dissipation structures (5) are provided on the front and rear surfaces of the fuel tank body (3), a cooling structure (6) is provided on one side of the fuel tank body (3), and a transformer (7) is provided inside the fuel tank body (3); The buffer structure (2) comprises a damper (21), and a spring (22) is sleeved on the outer side of the damper (21); The cooling structure (6) comprises a cold water tank (61), a water pump (63) is fixedly connected to one side of the top of the cold water tank (61), an output end of the water pump (63) is fixedly connected to a water outlet pipe (62), the other end of the water outlet pipe (62) extends into the interior of the oil tank body (3) and the end is fixedly connected to a cooling pipe (64), the other end of the cooling pipe (64) is fixedly connected to a return pipe (66), the other end of the return pipe (66) extends out of the oil tank body (3) and the end is fixedly connected to a cooler (67), and the output end of the cooler (67) is connected to the interior of the cold water tank (61).

2. The oil-immersed transformer tank according to claim 1, characterized in that: The damper (21) is fixedly connected to the four corners of the top of the base plate (1) and the other end is fixedly connected to the bottom of the oil tank body (3); the two ends of the spring (22) are respectively fixedly connected to the base plate (1) and the oil tank body (3).

3. The oil-immersed transformer tank according to claim 1, characterized in that: The four corners of the top of the oil tank cover (4) are all fixedly connected with hanging blocks (41), and the side surface of the hanging blocks (41) is provided with hanging holes (42).

4. The oil-immersed transformer tank according to claim 1, characterized in that: The heat dissipation structure (5) comprises a plurality of heat dissipation fins (51), the top and bottom of the heat dissipation fins (51) are fixedly connected to an L-shaped connecting plate (52), fixing bolts (53) are provided on both sides of the L-shaped connecting plate (52), and the heat dissipation fins (51) are mounted on the front and rear end surfaces of the oil tank body (3) via the fixing bolts (53).

5. The oil-immersed transformer tank according to claim 1, characterized in that: The cooling tube (64) is a rectangular structure, and a plurality of connecting tubes (65) are fixedly connected inside the cooling tube (64).

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