Adjusting structure of vacuum tank for converter transformer of oil injection system

Abstract

The utility model relates to the technical field of vacuum tanks of converter transformers, discloses an adjusting structure of a vacuum tank for a converter transformer of an oil injection system, and solves the problems that the temperature of insulating oil is too high and the insulating oil is not easy to cool in time in the use process of the vacuum tank. Comprising a cooling chamber fixedly connected to the inner wall of the vacuum tank body, a heat exchanger is fixedly connected to the inner wall of the cooling chamber, and a heat dissipation plate is fixedly connected to the bottom face of the heat exchanger; one end of the heat dissipation plate penetrates through the cooling chamber, an oil leakage groove penetrating through the heat dissipation plate is formed in one side of the heat dissipation plate, a heat dissipation bottom plate is fixedly connected to the bottom face of the inner wall of the cooling chamber, a cooling plate is arranged in the heat dissipation plate, the cooling plate and the heat dissipation bottom plate are filled with cooling liquid, and the purpose of cooling insulating oil in time is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of converter transformer vacuum tanks, in particular to an adjustment structure of a vacuum tank for a converter transformer of an oil injection system. Background Art

[0002] A converter transformer is a special type of transformer used in a DC transmission system. It converts AC power into DC power or DC power into AC power, thereby realizing energy exchange between the AC grid and the DC grid, and serves as a bridge connecting the AC grid and the DC grid. The converter transformer has a special design and structure to meet the requirements of high voltage and high current. It usually adopts multi-level windings and special insulation structures to provide sufficient electrical insulation and conductivity. In addition, the converter transformer also needs to have a good cooling system and insulation system to ensure the reliable operation and safety of the equipment. In actual work, an oil filling system is often used to fill the vacuum tank with oil to provide the insulation performance and cooling effect required by the electrical equipment. However, during long-term use, the temperature of the insulating oil itself will also rise, thereby affecting its own cooling effect. The existing vacuum tank adjustment structure only has the function of detecting and adjusting the vacuum degree of the vacuum tank, and does not have the function of detecting and adjusting the temperature inside the vacuum tank, thereby affecting the protection effect of the converter transformer.

[0003] In view of the above problems, an adjustment structure of a vacuum tank for a converter transformer of an oil injection system is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an adjustment structure of a vacuum tank for a converter transformer of an oil injection system. The device is used to work, thereby solving the problem that the insulating oil temperature of the vacuum tank is too high and difficult to cool down in time during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustment structure of a vacuum tank for a converter transformer of an oil injection system, comprising an outer shell, the inner wall of which is fixedly connected to a vacuum tank body, and a cooling component for cooling insulating oil is arranged inside the vacuum tank body;

[0006] The cooling component includes a cooling chamber fixedly connected to the inner wall of the vacuum tank body, a heat exchanger fixedly connected to the inner wall of the cooling chamber, a heat sink fixedly connected to the bottom of the heat exchanger, one end of the heat sink passes through the cooling chamber, an oil leakage groove passing through the heat sink is provided on one side of the heat sink, a heat sink bottom plate is fixedly connected to the bottom of the inner wall of the cooling chamber, the bottom surface of the heat sink is fixedly connected to the upper surface of the heat sink bottom plate, a cooling plate is arranged inside the heat sink, the cooling plate and the heat sink bottom plate are filled with coolant, and the cooling plate is communicated with the heat sink bottom plate.

[0007] Preferably, an isolation chamber is provided inside the cooling chamber, a partition is fixedly connected to the inner wall of the cooling chamber, an oil extraction pipe is fixedly connected to one side of the partition, an oil extraction pump B is fixedly connected to the outer side of the oil extraction pipe, an oil discharge port is opened on the inner wall of the cooling chamber, an oil discharge pipe B is fixedly connected to one side of the cooling chamber, and the oil discharge pipe B is arranged corresponding to the oil discharge port.

[0008] Preferably, an oil filling mechanism for oil filling is provided above the outer shell, and the oil filling mechanism includes a mounting plate fixedly connected to one side of the outer shell, a support plate fixedly connected to the bottom surface of the mounting plate, one side of the support plate fixedly connected to one side of the outer shell, a bracket fixedly connected to the upper surface of the mounting plate, an oil storage tank fixedly connected to the upper surface of the bracket, an oil filling pipe fixedly connected to the outer side of the oil storage tank, one end of the oil filling pipe fixedly connected to one side of the vacuum tank body, and a valve A fixedly connected to the inner wall of the oil filling pipe.

[0009] Preferably, an insulating pad is fixedly connected to the inner wall of the outer shell, the upper surface of the insulating pad is fixedly connected to the winding body, an oil drain pipe A is fixedly connected to one side of the vacuum tank body, one end of the oil drain pipe A passes through one side of the outer shell and the position of the oil drain pipe A corresponds to the upper surface of the insulating pad, an oil pump A is fixedly connected to the outside of the oil drain pipe A, and a valve B is fixedly connected to the inside of the oil drain pipe A.

[0010] Preferably, a thermometer and a controller are fixedly connected to one side of the outer shell.

[0011] Preferably, a connecting bottom plate is fixedly connected to the bottom surface of the outer shell to facilitate installation and connection of the outer shell.

[0012] Preferably, a fan is fixedly connected to one side of the outer shell, and the fan is arranged correspondingly to the heat exchanger. A vacuum pump is also fixedly connected to one side of the outer shell, and the vacuum pump is arranged correspondingly to the vacuum tank body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model proposes an adjustment structure of a vacuum tank for a converter transformer of an oil injection system. The temperature inside the vacuum tank body is monitored by a thermometer. When the insulating oil inside the vacuum tank body needs to be cooled, the oil pump B and the heat exchanger are turned on. The insulating oil inside the vacuum tank body is extracted through an oil extraction pipe by the oil pump B. After entering the cooling chamber through the oil extraction pipe, the insulating oil is cooled when passing through a heat dissipation bottom plate and a surface of a cooling plate. Under the action of the heat exchanger, the temperature of the coolant can be ensured during the entire cooling process. The fan cools the heat exchanger. Subsequently, the insulating oil flows out through the oil leakage groove and flows back into the vacuum tank body through the oil discharge port and the oil discharge pipe B, thereby achieving the purpose of timely cooling the insulating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the outer shell of the utility model;

[0017] Figure 3 This is a schematic diagram of the cooling component structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the fan and vacuum pump of the utility model.

[0019] In the figure: 1. outer shell; 11. connecting base plate; 12. winding body; 13. oil filling pipe; 131. valve A; 14. oil discharge pipe A; 141. oil pump A; 142. valve B; 15. insulating pad; 2. thermometer; 3. controller; 4. oil filling mechanism; 41. mounting plate; 42. support plate; 43. bracket; 44. oil storage tank; 5. vacuum tank body; 51. cooling component; 511. cooling room; 512. heat exchanger; 513. heat sink; 514. cooling plate; 515. oil discharge port; 516. oil leakage groove; 517. heat dissipation base plate; 52. oil discharge pipe B; 53. oil pump; 54. oil pump B; 55. isolation room; 56. partition; 6. fan; 7. vacuum pump. DETAILED DESCRIPTION

[0020] 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 in 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.

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0022] Combination Figure 1 The invention discloses an adjustment structure of a vacuum tank for an oil injection system converter transformer, comprising an outer shell 1, a vacuum tank body 5 is fixedly connected to the inner wall of the outer shell 1, and a cooling component 51 for cooling insulating oil is arranged inside the vacuum tank body 5.

[0023] The utility model is further described below in conjunction with embodiments.

[0024] See also Figure 2-Figure 4The cooling component 51 includes a cooling chamber 511 fixedly connected to the inner wall of the vacuum tank body 5, a heat exchanger 512 is fixedly connected to the inner wall of the cooling chamber 511, a heat sink 513 is fixedly connected to the bottom of the heat exchanger 512, one end of the heat sink 513 passes through the cooling chamber 511, and an oil leakage groove 516 that passes through the heat sink 513 is opened on one side of the heat sink 513, a heat sink bottom plate 517 is fixedly connected to the bottom surface of the inner wall of the cooling chamber 511, the bottom surface of the heat sink 513 is fixedly connected to the upper surface of the heat sink bottom plate 517, a cooling plate 514 is arranged inside the heat sink 513, and the cooling plate 514 is arranged inside the heat sink 513. 4 and the heat dissipation bottom plate 517 are filled with coolant and the cooling plate 514 is connected with the heat dissipation bottom plate 517. Through the arrangement of the cooling chamber 511, the heat exchanger 512, the heat dissipation plate 513, the cooling plate 514 and the heat dissipation bottom plate 517, the insulating oil entering the cooling chamber 511 can be cooled by the coolant when passing between the heat dissipation bottom plate 517 and the oil leakage groove 516. At the same time, the heat exchanger 512 is used to ensure that the coolant is in a low temperature state to ensure the cooling effect. At the same time, the oil leakage groove 516 also has the effect of increasing the contact area to enhance the cooling effect.

[0025] An isolation chamber 55 is provided inside the cooling chamber 511, a partition 56 is fixedly connected to the inner wall of the cooling chamber 511, an oil extraction pipe 53 is fixedly connected to one side of the partition 56, and an oil extraction pump B54 is fixedly connected to the outer side of the oil extraction pipe 53, an oil discharge port 515 is opened on the inner wall of the cooling chamber 511, an oil discharge pipe B52 is fixedly connected to one side of the cooling chamber 511, and the oil discharge pipe B52 is arranged corresponding to the oil discharge port 515. Through the arrangement of the isolation chamber 55, the partition 56 and the oil extraction pump B54, the insulating oil is isolated when the oil extraction pump B54 is working, thereby ensuring a good working environment. Through the arrangement of the oil extraction pipe 53, the interior of the vacuum tank body 5 is connected to the interior of the cooling component 51, and the arrangement of the oil discharge pipe B52 and the oil discharge port 515 is used to discharge the insulating oil after cooling.

[0026] An oil filling mechanism 4 for oil filling is arranged above the outer shell 1, and the oil filling mechanism 4 includes a mounting plate 41 fixedly connected to one side of the outer shell 1, a support plate 42 is fixedly connected to the bottom surface of the mounting plate 41, one side of the support plate 42 is fixedly connected to one side of the outer shell 1, a bracket 43 is fixedly connected to the upper surface of the mounting plate 41, an oil storage tank 44 is fixedly connected to the upper surface of the bracket 43, an oil filling pipe 13 is fixedly connected to the outer side of the oil storage tank 44, one end of the oil filling pipe 13 is fixedly connected to one side of the vacuum tank body 5, and a valve A131 is fixedly connected to the inner wall of the oil filling pipe 13. Through the arrangement of the mounting plate 41, the support plate 42 and the bracket 43, a stable platform is provided for the placement of the oil storage tank 44, and through the arrangement of the oil filling pipe 13 and the valve A131, the oil storage tank 44 is connected to the inside of the vacuum tank body 5, so that the insulating oil in the oil storage tank 44 can be promptly delivered to the inside of the vacuum tank body 5 when needed.

[0027] An insulating pad 15 is fixedly connected to the inner wall of the outer shell 1, and a winding body 12 is fixedly connected to the upper surface of the insulating pad 15. An oil drain pipe A14 is fixedly connected to one side of the vacuum tank body 5. One end of the oil drain pipe A14 passes through one side of the outer shell 1 and the position of the oil drain pipe A14 corresponds to the upper surface of the insulating pad 15. An oil pump A141 is fixedly connected to the outside of the oil drain pipe A14, and a valve B142 is fixedly connected to the inside of the oil drain pipe A14. The basic functions of the converter transformer are realized by the arrangement of the winding body 12 and the insulating pad 15. By the arrangement of the oil drain pipe A14, the oil pump A141 and the valve B142, the oil pump A141 can be turned on when the insulating oil needs to be discharged, and the insulating oil inside the outer shell 1 can be discharged through the oil drain pipe A14.

[0028] A thermometer 2 and a controller 3 are fixedly connected to one side of the outer shell 1. Through the arrangement of the thermometer 2 and the controller 3, the temperature and vacuum degree inside the vacuum tank body 5 can be monitored in time.

[0029] A connecting bottom plate 11 is fixedly connected to the bottom surface of the outer shell 1 for facilitating the installation and connection of the outer shell 1 . The setting of the connecting bottom plate 11 can facilitate the installation and connection of the outer shell 1 .

[0030] A fan 6 is fixedly connected to one side of the outer shell 1, and the fan 6 is arranged corresponding to the heat exchanger 512. A vacuum pump 7 is also fixedly connected to one side of the outer shell 1, and the vacuum pump 7 is arranged corresponding to the vacuum tank body 5. The heat exchanger 512 can be cooled by the fan 6 and the vacuum pump 7, and the vacuum degree inside the vacuum tank body 5 is ensured by the vacuum pump 7.

[0031] Specifically, the internal temperature of the vacuum tank body 5 is monitored by the thermometer 2. When the insulating oil in the vacuum tank body 5 needs to be cooled, the oil pump B54 and the heat exchanger 512 are turned on. The insulating oil in the vacuum tank body 5 is extracted by the oil pump B54 through the oil extraction pipe 53. After entering the cooling chamber 511 through the oil extraction pipe 53, the insulating oil is cooled while passing through the heat dissipation base plate 517 and the surface of the cooling plate 514. Under the action of the heat exchanger 512, the temperature of the coolant can be guaranteed during the entire cooling process. The fan 6 cools the heat exchanger 512. Then, the insulating oil flows out through the oil leakage groove 516 and flows back to the vacuum tank body 5 through the oil drain port 515 and the oil drain pipe B52, thereby achieving the purpose of timely cooling the insulating oil.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustment structure of a vacuum tank for an oil injection system converter transformer, comprising an outer shell (1), characterized in that: The inner wall of the outer shell (1) is fixedly connected to a vacuum tank body (5), and a cooling component (51) for cooling the insulating oil is arranged inside the vacuum tank body (5); The cooling component (51) comprises a cooling chamber (511) fixedly connected to the inner wall of the vacuum tank body (5), a heat exchanger (512) fixedly connected to the inner wall of the cooling chamber (511), a heat sink (513) fixedly connected to the bottom surface of the heat exchanger (512), one end of the heat sink (513) passing through the cooling chamber (511), an oil leakage groove (516) passing through the heat sink (513) is provided on one side of the heat sink (513), a heat sink bottom plate (517) fixedly connected to the bottom surface of the inner wall of the cooling chamber (511), the bottom surface of the heat sink (513) fixedly connected to the upper surface of the heat sink bottom plate (517), a cooling plate (514) arranged inside the heat sink (513), the cooling plate (514) and the heat sink bottom plate (517) are filled with cooling liquid, and the cooling plate (514) and the heat sink bottom plate (517) are in communication.

2. The adjustment structure of the vacuum tank for the oil injection system converter transformer according to claim 1 is characterized in that: An isolation chamber (55) is provided inside the cooling chamber (511); a partition (56) is fixedly connected to the inner wall of the cooling chamber (511); an oil extraction pipe (53) is fixedly connected to one side of the partition (56); an oil extraction pump B (54) is fixedly connected to the outer side of the oil extraction pipe (53); an oil discharge port (515) is provided on the inner wall of the cooling chamber (511); an oil discharge pipe B (52) is fixedly connected to one side of the cooling chamber (511); and the oil discharge pipe B (52) and the oil discharge port (515) are arranged correspondingly.

3. The adjustment structure of the vacuum tank for the oil injection system converter transformer according to claim 1 is characterized in that: An oil injection mechanism (4) for oil injection is arranged above the outer shell (1), and the oil injection mechanism (4) comprises a mounting plate (41) fixedly connected to one side of the outer shell (1), a support plate (42) fixedly connected to the bottom surface of the mounting plate (41), one side of the support plate (42) fixedly connected to one side of the outer shell (1), a bracket (43) fixedly connected to the upper surface of the mounting plate (41), an oil storage tank (44) fixedly connected to the upper surface of the bracket (43), an oil injection pipe (13) fixedly connected to the outer side of the oil storage tank (44), one end of the oil injection pipe (13) fixedly connected to one side of the vacuum tank body (5), and a valve A (131) fixedly connected to the inner wall of the oil injection pipe (13).

4. The adjustment structure of the vacuum tank for the oil injection system converter transformer according to claim 1 is characterized in that: The inner wall of the outer shell (1) is fixedly connected to an insulating pad (15), the upper surface of the insulating pad (15) is fixedly connected to a winding body (12), one side of the vacuum tank body (5) is fixedly connected to an oil drain pipe A (14), one end of the oil drain pipe A (14) passes through one side of the outer shell (1) and the position of the oil drain pipe A (14) corresponds to the upper surface of the insulating pad (15), the outer side of the oil drain pipe A (14) is fixedly connected to an oil pump A (141), and the inside of the oil drain pipe A (14) is fixedly connected to a valve B (142).

5. The adjustment structure of the vacuum tank for the oil injection system converter transformer according to claim 1 is characterized in that: A thermometer (2) and a controller (3) are fixedly connected to one side of the outer shell (1).

6. The adjustment structure of the vacuum tank for the oil injection system converter transformer according to claim 1 is characterized in that: A connecting bottom plate (11) is fixedly connected to the bottom surface of the outer shell (1) to facilitate installation and connection of the outer shell (1).

7. The adjustment structure of the vacuum tank for the oil injection system converter transformer according to claim 1 is characterized in that: A fan (6) is fixedly connected to one side of the outer shell (1), and the fan (6) is arranged corresponding to the heat exchanger (512). A vacuum pump (7) is also fixedly connected to one side of the outer shell (1), and the vacuum pump (7) is arranged corresponding to the vacuum tank body (5).

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