A collective high temperature protection device for oil-immersed electrical equipment

Abstract

The present invention relates to a collective high temperature protection device for oil-immersed power equipment, comprising a shell, a transformer body is arranged inside the shell, an oil outlet pipe is arranged on one side of the shell, an impeller chamber is arranged on the top of the shell, a cooling cylinder is rotatably connected inside the impeller chamber, an impeller is welded on one side of the cooling cylinder, a first connecting pipe is welded on one end of the impeller chamber, and a cooling pipe is welded between the first connecting pipe and the oil outlet pipe. The present invention can drive the impeller to rotate by rotating the cooling cylinder, thereby extracting cooling oil inside the shell, the cooling oil enters the interior of the cooling pipe through the oil outlet pipe, is initially cooled, and then enters the impeller chamber, fully contacts with the impeller, is cooled by the impeller, and the heat is absorbed by the cooling cylinder, thereby dissipating the heat of the cooling oil, and then the cooling oil enters the interior of the oil outlet tank through a plurality of heat dissipation pipes, and when passing through the heat dissipation pipes, the fan blades rotate, so that the air dissipates the heat of the heat dissipation pipes, further improving the cooling effect of the cooling oil.

Description

Technical Field

[0001] The invention relates to the technical field of transformer heat dissipation, and in particular to an integrated high-temperature protection device for oil-immersed electric power equipment. Background Art

[0002] The oil-immersed transformer is a type of oil-immersed power equipment. The purpose of oil immersion is to better dissipate heat from the transformer to improve the working efficiency of the transformer. However, oil alone cannot achieve the purpose of heat dissipation. It needs to be combined with an integrated radiator to complete the heat dissipation operation.

[0003] The existing oil-immersed transformer has poor heat dissipation capacity. When the transformer temperature is high, the heat dissipation efficiency of a simple fan is low. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an integrated high temperature protection device for oil-immersed electrical equipment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A collective high-temperature protection device for oil-immersed power equipment comprises a shell, a transformer body is arranged inside the shell, an oil outlet pipe is arranged on one side of the shell, an impeller chamber is arranged on the top of the shell, a cooling cylinder is rotatably connected inside the impeller chamber, an impeller is welded on one side of the cooling cylinder, a first connecting pipe is welded at one end of the impeller chamber, a cooling pipe is welded between the first connecting pipe and the oil outlet pipe, a support tube is welded on the top of the shell, an oil inlet box and an oil outlet box are respectively arranged on both sides of the top end of the support tube, a plurality of heat dissipation pipes are arranged between the oil inlet box and the oil outlet box, a second drive motor is arranged inside the support tube, a fan blade is arranged on the top end of the output shaft of the second drive motor, a second connecting pipe is arranged between the oil inlet box and the impeller chamber, and an oil inlet pipe is arranged between the oil outlet box and the shell.

[0007] Furthermore, the cooling pipe is S-shaped.

[0008] Furthermore, a coolant is provided inside the cooling cylinder, and a plurality of heat dissipation rods are welded outside the cooling cylinder.

[0009] Furthermore, a first drive motor is provided on the top of the shell, a rotating shaft is rotatably connected to one side of the support cylinder, one end of the rotating shaft is welded to the cooling cylinder, and a belt is provided on the outside of the rotating shaft and the outside of the output shaft of the first drive motor.

[0010] Furthermore, a fixing ring is welded on one side of the impeller chamber, a rubber ring is provided on the inner wall of the fixing ring, and the cooling cylinder passes through the rubber ring.

[0011] Furthermore, a plurality of heat sinks are welded to the outside of the heat dissipation pipe.

[0012] Furthermore, an air inlet is provided on one side of the support tube, and a filter is provided at the air inlet.

[0013] Furthermore, a mounting seat is provided on the top of the housing, and the second drive motor is located at the top of the mounting seat.

[0014] Furthermore, protective nets are provided on the tops of the oil inlet tank and the oil outlet tank.

[0015] The beneficial effects of the present invention are:

[0016] 1. By setting a cooling pipe, a cooling cylinder and a heat dissipation pipe, the rotation of the cooling cylinder can drive the impeller to rotate, thereby extracting the cooling oil inside the shell. The cooling oil enters the interior of the cooling pipe through the oil outlet pipe and is initially cooled. Then it enters the impeller chamber, fully contacts with the impeller, and is cooled by the impeller. The heat will be absorbed by the cooling cylinder, thereby dissipating the cooling oil. Then the cooling oil will enter the interior of the oil outlet tank through multiple heat dissipation pipes. When passing through the heat dissipation pipe, the fan blades rotate, so that the air dissipates the heat from the heat dissipation pipe, further improving the cooling effect of the cooling oil.

[0017] 2. By setting up an S-shaped cooling pipe, the contact area with the outside air can be increased, so as to facilitate the initial cooling of the cooling oil inside the cooling pipe;

[0018] 3. By setting the coolant and the heat dissipation rod, the coolant facilitates the heat conduction of the cooling cylinder, so that the heat dissipation rod outside can dissipate the heat of the cooling cylinder, so that the cooling cylinder can dissipate the heat of the cooling oil while transporting the cooling oil. At the same time, as the cooling cylinder rotates, the heat dissipation rod will move in the air, so as to facilitate the heat dissipation of the heat dissipation rod, further improving the heat dissipation capacity of the device;

[0019] 4. The rubber ring is provided to facilitate the sealing of the impeller chamber and prevent the cooling oil from leaking;

[0020] 5. By setting the heat sink, the heat sink facilitates the fan blades to drive the air flow to dissipate heat to the heat pipe, which can improve the heat dissipation effect of the heat pipe, thereby facilitating the heat dissipation of the heat pipe;

[0021] 6. By setting up a filter, the filter is convenient for filtering the air, thereby preventing dust from sticking to the cooling pipe and affecting the heat dissipation effect of the cooling pipe;

[0022] 7. By setting up a protective net, the protective net can prevent foreign matter from falling onto the cooling pipe, thereby avoiding affecting the air cooling and heat dissipation of the cooling pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the main structure of a collective high-temperature protection device for oil-immersed power equipment proposed in Example 1;

[0024] Figure 2 This is a schematic cross-sectional view of a collective high-temperature protection device for oil-immersed power equipment proposed in Example 1;

[0025] Figure 3 This is a schematic cross-sectional structure diagram of an integrated high-temperature protection device for oil-immersed power equipment proposed in Example 2.

[0026] In the figure: 1 transformer body, 2 shell, 3 oil outlet pipe, 4 cooling pipe, 5 first connecting pipe, 6 support plate, 7 impeller chamber, 8 cooling cylinder, 9 coolant, 10 impeller, 11 rubber ring, 12 fixing ring, 13 heat dissipation rod, 14 second connecting pipe, 15 belt, 16 first drive motor, 17 rotating shaft, 18 oil inlet tank, 19 heat dissipation pipe, 20 heat sink, 21 fan blade, 22 second drive motor, 23 oil outlet tank, 24 support cylinder, 25 filter, 26 oil inlet pipe, 27 mounting seat, 28 protective net. DETAILED DESCRIPTION

[0027] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0028] Example 1

[0029] Reference Figure 1-2A collective high temperature protection device for oil-immersed power equipment comprises a shell 2, a transformer body 1 is arranged inside the shell 2, an oil outlet pipe 3 is arranged on one side of the shell 2, an impeller chamber 7 is arranged on the top of the shell 2, a cooling cylinder 8 is rotatably connected inside the impeller chamber 7, an impeller 10 is welded on one side of the cooling cylinder 8, a first connecting pipe 5 is welded on one end of the impeller chamber 7, a cooling pipe 4 is welded between the first connecting pipe 5 and the oil outlet pipe 3, a support cylinder 24 is welded on the top of the shell 2, an oil inlet box 18 and an oil outlet box 23 are respectively arranged on both sides of the top of the support cylinder 24, a plurality of heat dissipation pipes 19 are arranged between the oil inlet box 18 and the oil outlet box 23, a second drive motor 22 is arranged inside the support cylinder 24, a fan blade 21 is arranged on the top of the output shaft of the second drive motor 22, a second connecting pipe 14 is arranged between the oil inlet box 18 and the impeller chamber 7, an inlet box 23 is arranged between the oil outlet box 23 and the shell 2 The oil pipe 26 can drive the impeller 10 to rotate through the rotation of the cooling cylinder 8, thereby extracting the cooling oil inside the shell 2. The cooling oil enters the interior of the cooling pipe 4 through the oil outlet pipe 3, is initially cooled, and then enters the impeller chamber 7, fully contacts with the impeller 10, and is cooled by the impeller 10. The heat will be absorbed by the cooling cylinder 8, thereby dissipating the heat of the cooling oil. Then, the cooling oil will enter the interior of the oil inlet tank 18 through the second connecting pipe 14, and then enter the interior of the oil outlet tank 23 through multiple heat dissipation pipes 19. When passing through the heat dissipation pipe 19, the second drive motor 22 will drive the fan blades 21 to rotate, so that the air dissipates heat to the heat dissipation pipe 19, further improving the cooling effect of the cooling oil. The cooled cooling oil will enter the interior of the shell 2 through the oil inlet pipe 26 to cool the transformer body 1. The cooling oil circulates, thereby ensuring the cooling effect of the transformer body 1.

[0030] The cooling pipe 4 is in an S-shape, and the S-shaped cooling pipe 4 can increase the contact area with the outside air, thereby facilitating the initial cooling of the cooling oil inside the cooling pipe 4 .

[0031] Among them, the interior of the cooling cylinder 8 is provided with a coolant 9, and a plurality of heat dissipation rods 13 are welded to the outside of the cooling cylinder 8. The coolant 9 facilitates the conduction of heat from the cooling cylinder 8, thereby facilitating the heat dissipation rods 13 outside to dissipate heat from the cooling cylinder 8. The cooling cylinder 8 can dissipate heat and cool down the cooling oil while transporting the cooling oil. At the same time, as the cooling cylinder 8 rotates, the heat dissipation rods 13 will move in the air, thereby facilitating the heat dissipation of the heat dissipation rods 13, further improving the heat dissipation capacity of the device.

[0032] Among them, a first driving motor 16 is provided on the top of the outer shell 2, and a rotating shaft 17 is rotatably connected to one side of the supporting cylinder 24. One end of the rotating shaft 17 is welded to the cooling cylinder 8. A belt 15 is provided on the outside of the rotating shaft 17 and the outside of the output shaft of the first driving motor 16. Through the transmission of the belt 15, the first driving motor 16 can drive the rotating shaft 17 to rotate, thereby driving the cooling cylinder 8 to rotate, facilitating the rotation of the impeller 10, transporting the cooling oil, and circulating the cooling oil for cooling.

[0033] A fixing ring 12 is welded on one side of the impeller chamber 7, a rubber ring 11 is provided on the inner wall of the fixing ring 12, and the cooling cylinder 8 passes through the rubber ring 11, which facilitates the sealing of the impeller chamber 7 and prevents leakage of cooling oil.

[0034] Among them, a number of heat sinks 20 are welded on the outside of the heat pipe 19. When the fan blades 21 drive the air flow, the heat sink 20 can dissipate heat to the heat pipe 19, which can improve the heat dissipation effect of the heat pipe 19 and facilitate the heat dissipation of the heat pipe 19.

[0035] Among them, an air inlet is opened on one side of the support tube 24, and a filter 25 is provided at the air inlet. The filter 25 is used to filter the air, so as to prevent dust from sticking to the cooling pipe 19 and affecting the heat dissipation effect of the cooling pipe 19.

[0036] A mounting seat 27 is provided on the top of the housing 2 , and the second driving motor 22 is located at the top of the mounting seat 27 .

[0037] Working principle: The rotation of the cooling cylinder 8 can drive the impeller 10 to rotate, thereby extracting the cooling oil inside the shell 2. The cooling oil enters the interior of the cooling pipe 4 through the oil outlet pipe 3, is initially cooled, and then enters the impeller chamber 7, fully contacts with the impeller 10, and is cooled by the impeller 10. The heat will be absorbed by the cooling cylinder 8, thereby dissipating the heat of the cooling oil. Then, the cooling oil will enter the interior of the oil inlet tank 18 through the second connecting pipe 14, and then enter the interior of the oil outlet tank 23 through multiple heat dissipation pipes 19. When passing through the heat dissipation pipe 19, the second drive motor 22 will drive the fan blades 21 to rotate, so that the air dissipates heat to the heat dissipation pipe 19, further improving the cooling effect of the cooling oil. The cooled cooling oil will enter the interior of the shell 2 through the oil inlet pipe 26 to cool the transformer body 1. The cooling oil circulates, thereby ensuring the cooling effect of the transformer body 1.

[0038] The S-shaped cooling pipe 4 can increase the contact area with the outside air, thereby facilitating the initial cooling of the cooling oil inside the cooling pipe 4 .

[0039] The coolant 9 facilitates the conduction of heat from the cooling cylinder 8, thereby facilitating the external heat dissipation rod 13 to dissipate heat from the cooling cylinder 8, so that the cooling cylinder 8 can dissipate heat and cool the cooling oil while transporting the cooling oil. At the same time, as the cooling cylinder 8 rotates, the heat dissipation rod 13 will move in the air, thereby facilitating the heat dissipation of the heat dissipation rod 13, further improving the heat dissipation capacity of the device.

[0040] Through the transmission of the belt 15, the first drive motor 16 can drive the rotating shaft 17 to rotate, thereby driving the cooling cylinder 8 to rotate, facilitating the rotation of the impeller 10, conveying the cooling oil, and circulating the cooling oil to cool it down.

[0041] The rubber ring 11 facilitates the sealing of the impeller chamber 7 to prevent the cooling oil from leaking out.

[0042] When the fan blades 21 drive the air flow through the heat sink 20 , the heat dissipation of the heat pipe 19 can be improved, thereby facilitating the heat dissipation of the heat pipe 19 .

[0043] The filter 25 facilitates filtering of the air, thereby preventing dust from getting on the cooling pipe 19 and affecting the heat dissipation effect of the cooling pipe 19 .

[0044] Example 2

[0045] Reference Figure 3 , a collective high-temperature protection device for oil-immersed power equipment. Compared with Example 1, in order to increase the practicality of the device, a protective net 28 is provided on the top of the oil inlet tank 18 and the oil outlet tank 23. The protective net 28 can prevent foreign matter from falling onto the cooling pipe 19, thereby avoiding affecting the air-cooling heat dissipation of the cooling pipe 19.

[0046] Working principle: The rotation of the cooling cylinder 8 can drive the impeller 10 to rotate, thereby extracting the cooling oil inside the shell 2. The cooling oil enters the interior of the cooling pipe 4 through the oil outlet pipe 3, is initially cooled, and then enters the impeller chamber 7, fully contacts with the impeller 10, and is cooled by the impeller 10. The heat will be absorbed by the cooling cylinder 8, thereby dissipating the heat of the cooling oil. Then, the cooling oil will enter the interior of the oil inlet tank 18 through the second connecting pipe 14, and then enter the interior of the oil outlet tank 23 through multiple heat dissipation pipes 19. When passing through the heat dissipation pipe 19, the second drive motor 22 will drive the fan blades 21 to rotate, so that the air dissipates heat to the heat dissipation pipe 19, further improving the cooling effect of the cooling oil. The cooled cooling oil will enter the interior of the shell 2 through the oil inlet pipe 26 to cool the transformer body 1. The cooling oil circulates, thereby ensuring the cooling effect of the transformer body 1.

[0047] The S-shaped cooling pipe 4 can increase the contact area with the outside air, thereby facilitating the initial cooling of the cooling oil inside the cooling pipe 4 .

[0048] The coolant 9 facilitates the conduction of heat from the cooling cylinder 8, thereby facilitating the external heat dissipation rod 13 to dissipate heat from the cooling cylinder 8, so that the cooling cylinder 8 can dissipate heat and cool the cooling oil while transporting the cooling oil. At the same time, as the cooling cylinder 8 rotates, the heat dissipation rod 13 will move in the air, thereby facilitating the heat dissipation of the heat dissipation rod 13, further improving the heat dissipation capacity of the device.

[0049] Through the transmission of the belt 15, the first drive motor 16 can drive the rotating shaft 17 to rotate, thereby driving the cooling cylinder 8 to rotate, facilitating the rotation of the impeller 10, conveying the cooling oil, and circulating the cooling oil to cool it down.

[0050] The rubber ring 11 facilitates the sealing of the impeller chamber 7 to prevent the cooling oil from leaking out.

[0051] When the fan blades 21 drive the air flow through the heat sink 20 , the heat dissipation of the heat pipe 19 can be improved, thereby facilitating the heat dissipation of the heat pipe 19 .

[0052] The filter 25 facilitates filtering of the air, thereby preventing dust from getting on the cooling pipe 19 and affecting the heat dissipation effect of the cooling pipe 19 .

[0053] The protective net 28 can prevent foreign matter from falling onto the cooling pipe 19 , thereby preventing the air-cooling and heat dissipation of the cooling pipe 19 from being affected.

[0054] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A collective high temperature protection device for oil-immersed electrical equipment, comprising a housing (2), characterized in that: A transformer body (1) is provided inside the shell (2), an oil outlet pipe (3) is provided on one side of the shell (2), an impeller chamber (7) is provided on the top of the shell (2), a cooling cylinder (8) is rotatably connected inside the impeller chamber (7), an impeller (10) is fixedly connected to one side of the cooling cylinder (8), a first connecting pipe (5) is fixedly connected to one end of the impeller chamber (7), a cooling pipe (4) is fixedly connected between the first connecting pipe (5) and the oil outlet pipe (3), and a support cylinder is fixedly connected to the top of the shell (2). (24), an oil inlet box (18) and an oil outlet box (23) are respectively provided on both sides of the top end of the support tube (24), a plurality of heat dissipation pipes (19) are provided between the oil inlet box (18) and the oil outlet box (23), a second drive motor (22) is provided inside the support tube (24), a fan blade (21) is provided at the top end of the output shaft of the second drive motor (22), a second connecting pipe (14) is provided between the oil inlet box (18) and the impeller chamber (7), and an oil inlet pipe (26) is provided between the oil outlet box (23) and the housing (2); The cooling cylinder (8) is provided with a coolant (9) inside, the outside of the cooling cylinder (8) is fixedly connected with a plurality of heat dissipation rods (13), the top of the housing (2) is provided with a first drive motor (16), one side of the support cylinder (24) is rotatably connected with a rotating shaft (17), one end of the rotating shaft (17) is welded to the cooling cylinder (8), and the outside of the rotating shaft (17) and the outside of the output shaft of the first drive motor (16) are sleeved with a belt (15); The cooling pipe (4) is S-shaped; A fixing ring (12) is fixedly connected to one side of the impeller chamber (7), a rubber ring (11) is provided on the inner wall of the fixing ring (12), and the cooling cylinder (8) passes through the rubber ring (11); A plurality of heat sinks (20) are fixedly connected to the outside of the heat dissipation pipe (19); An air inlet is provided on one side of the support tube (24), and a filter screen (25) is provided at the air inlet; A mounting seat (27) is provided on the top of the housing (2), and the second drive motor (22) is located at the top of the mounting seat (27); Protective nets (28) are provided on the tops of the oil inlet box (18) and the oil outlet box (23).

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