CN215183399U - Cooling unit for oil immersed transformers - Google Patents
Cooling unit for oil immersed transformers Download PDFInfo
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- CN215183399U CN215183399U CN202023205165.2U CN202023205165U CN215183399U CN 215183399 U CN215183399 U CN 215183399U CN 202023205165 U CN202023205165 U CN 202023205165U CN 215183399 U CN215183399 U CN 215183399U
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Abstract
本实用新型提出一种用于油浸式变压器的冷却装置，包括至少4个主风机以及对应的第一支架，主风机设置于被冷却的油浸式变压器的散热器下方，第一支架支承于对应主风机下方，第一支架顶端设有矩形的第一框体，第一框体的一对第一边框下方设有第一支撑板，主风机底部两侧分别设置于支撑板上，使得主风机在第一框体的空隙中沿第一边框滑动，还包括温度采集模块和处理器单元，处理器单元通过温度采集模块和被冷却的油浸式变压器的油温测量回路连接，主风机供电端通过处理器单元和外部电源连接，温度采集模块设置于被冷却的油浸式变压器本体端子箱内。本实用新型合理利用被冷却的油浸式变压器的散热器下方空间，有效解决了油浸式自冷变压器过热的问题。
The utility model proposes a cooling device for an oil-immersed transformer, comprising at least four main fans and corresponding first brackets, the main fans are arranged below the radiator of the oil-immersed transformer to be cooled, and the first brackets are supported on Corresponding to the bottom of the main fan, the top of the first bracket is provided with a rectangular first frame body, a pair of first frames of the first frame body is provided with a first support plate, and both sides of the bottom of the main fan are respectively arranged on the support plate, so that the main The fan slides along the first frame in the gap of the first frame, and also includes a temperature acquisition module and a processor unit. The processor unit is connected to the oil temperature measurement circuit of the cooled oil-immersed transformer through the temperature acquisition module, and the main fan is powered The terminal is connected to the external power supply through the processor unit, and the temperature acquisition module is arranged in the terminal box of the cooled oil-immersed transformer body. The utility model rationally utilizes the space below the radiator of the cooled oil-immersed transformer, and effectively solves the problem of overheating of the oil-immersed self-cooling transformer.
Description
Technical Field
The utility model relates to a heat abstractor especially relates to a cooling device for oil-immersed transformer.
Background
In the peak-to-peak summer and peak-to-peak winter periods of some old oil-immersed self-cooling transformers, the oil temperature is abnormally increased when heavy overload occurs, the heat dissipation problem is difficult to solve, and a convenient and flexible temporary measure needs to be taken.
The following scheme can be adopted to solve the problem that the operating oil temperature of the current oil-immersed self-cooling transformer is too high:
(1) scheme one
And carrying out capacity increasing transformation on the main transformer, namely replacing the main transformer.
The advantages are that: along with the increase of the capacity of the main transformer, the problem of overhigh oil temperature during the overload operation of the main transformer can be fundamentally solved, and the long-term safe and stable operation of the main transformer is facilitated.
The disadvantages are as follows: the capital invested in equipment purchase is large, the transformation cost is high, and the reliability of power supply is influenced by the power failure of a main transformer in the transformation implementation process.
(2) Scheme two
The cooler arrangement structure of the main transformer is improved, namely, the center height of the radiator is properly improved through analysis and demonstration on the basis of conventional arrangement of the original radiator, so that the oil flow speed in the transformer is accelerated, and the heat dissipation effect is improved. The method can improve the heat dissipation capacity of the transformer to a certain extent, but the method changes the original structural layout and electric field environment of the transformer, influences the safety of the operation of the main transformer, simultaneously has higher technical difficulty in modification and implementation, and easily causes the situation of oil leakage when the original cooler sealing connection surface is damaged or a new sealing connection surface is added.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in: technical problem to prior art existence, the utility model provides a cooling device for oil-immersed transformer, the overheated problem of oil-immersed self-cooling transformer has effectively been solved in the radiator below space of the oil-immersed transformer of rational utilization refrigerated.
In order to solve the technical problem, the utility model provides a technical scheme does:
a cooling device for an oil-immersed transformer comprises at least 4 main fans and first supports in one-to-one correspondence with the main fans, wherein the main fans are arranged below a radiator of the cooled oil-immersed transformer, the first supports are supported below the corresponding main fans, a rectangular first frame body is arranged at the top end of each first support, a first supporting plate is arranged below a pair of first side frames of each first frame body, two sides of the bottom of each main fan are respectively arranged on the corresponding supporting plates, so that the main fans slide along the first side frames in gaps of the first frame bodies, the cooling device further comprises a temperature acquisition module and a processor unit, the input end of the temperature acquisition module is connected with an oil temperature measurement loop of the cooled oil-immersed transformer, the output end of the temperature acquisition module is connected with the processor unit, and the power supply end of each main fan is connected with an external power supply through the processor unit, the temperature acquisition module is arranged in the cooled terminal box of the oil-immersed transformer body.
Preferably, the air conditioner further comprises a switch unit, at least 2 auxiliary fans and second supports corresponding to the auxiliary fans one by one, wherein the second supports are supported below the corresponding auxiliary fans, and the auxiliary fans are connected with an external power supply through the switch unit.
Preferably, a rectangular second frame body is arranged at the top end of the second support, a second support plate is arranged below a pair of second frames of the second frame body, and two sides of the bottom of the auxiliary fan are respectively arranged on the second support plate, so that the auxiliary fan slides along the second frames in a gap of the second frame body.
Preferably, the length of a frame adjacent to the first frame in the first frame is the same as the diameter of the main fan.
Preferably, the length of a frame adjacent to the second frame in the second frame is the same as the diameter of the auxiliary fan.
Preferably, the first supports are distributed in a rectangular shape, and the second supports are respectively arranged between the first supports adjacent to each other in the horizontal direction.
Preferably, the wind direction of the main fan passes through the gap between adjacent cooling fins in the cooled radiator of the oil-immersed transformer.
Preferably, the distance between the end face of the air outlet of the main fan and the outer end face of the cooled radiator of the oil-immersed transformer is 20 mm.
Preferably, the main fan is an axial flow fan.
Preferably, the system further comprises a speed regulator, and the power supply end of the main fan is connected with the processor unit through the speed regulator.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses set up the main blower fan in the radiator below of oil-immersed transformer cooled, make the air around the radiator flow and accelerate and increase the radiating efficiency, set up the temperature acquisition module in oil-immersed transformer body terminal box cooled simultaneously, the input of temperature acquisition module and the oil temperature measurement circuit connection of oil-immersed transformer cooled, can gather the temperature of transformer oil in real time, the output and the treater unit of temperature acquisition module are connected, can realize through the treater unit that the main blower fan of automatic start carries out the cooling of radiator when the temperature reaches the default;
2. the main fans of the utility model are arranged along the first sliding groove corresponding to the top of the first bracket in a sliding way, so that the position of each main fan can be adjusted, and the optimal heat dissipation efficiency can be realized by adjusting the position of each main fan by combining the temperature acquisition module;
3. the utility model discloses still include auxiliary fan, can further improve the radiating efficiency through opening auxiliary fan.
Drawings
Fig. 1 is a schematic view of an installation position of an embodiment of the present invention.
Fig. 2 is a block diagram of a connection structure according to an embodiment of the present invention.
Fig. 3 is the schematic layout of the main blower and the auxiliary blower in the embodiment of the present invention.
Fig. 4 is an installation schematic diagram of the main blower in the embodiment of the present invention.
Fig. 5 is an installation schematic diagram of the auxiliary blower in the embodiment of the present invention.
Illustration of the drawings: the device comprises a main fan 1, a first support 2, a temperature acquisition module 3, a processor unit 4, a switch unit 5, an auxiliary fan 6, a second support 7, a speed regulator 8, a first frame 21, a first frame 211, a first frame 212, a first support plate 71, a second frame 711, a second frame 712 and a second support plate 712.
Detailed Description
The invention will be further described with reference to the drawings and specific preferred embodiments without limiting the scope of the invention.
As shown in fig. 1 and fig. 2, the utility model provides a cooling device for oil-immersed transformer, including 4 at least main air blower 1 and with the first support 2 of 1 one-to-one of main air blower, main air blower 1 sets up in the radiator below of the oil-immersed transformer that cools, first support 2 supports in the main air blower 1 below that corresponds, and the cooling device of this embodiment still includes temperature acquisition module 3 and processor unit 4, the input of temperature acquisition module 3 and the oil temperature measurement return circuit of the oil-immersed transformer that cools are connected, temperature acquisition module 3's output and processor unit 4 are connected, 1 supply end of main air blower passes through processor unit 4 and external power source and connects, temperature acquisition module 3 sets up in the oil-immersed transformer body terminal incasement that cools. The utility model discloses set up main blower 1 in refrigerated oil-immersed transformer's radiator below, make the air flow around the radiator accelerate to increase the radiating efficiency, set up temperature acquisition module 3 in refrigerated oil-immersed transformer body terminal incasement simultaneously, temperature acquisition module 3's input and refrigerated oil-temperature measurement circuit connection of oil-immersed transformer, can gather the temperature of transformer oil in real time, temperature acquisition module 3's output and processor unit 4 are connected, processor unit 4 detects the temperature value that temperature acquisition module 3 returned and can carry out the cooling of radiator by automatic start main blower 1 when reaching the default, work efficiency has been promoted.
As shown in fig. 3 and 4, the top of the first bracket 2 of this embodiment is provided with a rectangular first frame 21, a first support plate 212 is disposed below a pair of first frames 211 of the first frame 21, and two sides of the bottom of the main fan 1 are respectively disposed on the first support plate 212, so that the main fan 1 is slidably disposed along the first frames 211 in a gap of the first frame 21, thereby adjusting the position of the main fan 1, and the temperature of the transformer oil collected in real time by the temperature collection module 3 can be adjusted to achieve the best heat dissipation efficiency.
In this embodiment, the length of the frame adjacent to the first frame 211 in the first frame 21 is the same as the diameter of the main fan 1, thereby preventing the main fan 1 from shifting during sliding.
As shown in fig. 1 and 2, the cooling device of the present embodiment further includes a switch unit 5, at least 2 auxiliary fans 6 disposed below the heat sink of the cooled oil-filled transformer, and second brackets 7 corresponding to the auxiliary fans 6 one by one, where the second brackets 7 are supported below the corresponding auxiliary fans 6, and the auxiliary fans 6 are connected to an external power supply through the switch unit 5. The auxiliary fan 6 is started in the cooling process, so that the heat dissipation efficiency can be further improved.
As shown in fig. 3, the first brackets 2 of the present embodiment are distributed in a rectangular shape below the cooled heat sink of the oil-immersed transformer, so as to ensure that each part of the heat sink can be cooled, and the second brackets 7 are respectively disposed between the first brackets 2 adjacent to each other in the horizontal direction, thereby increasing the cooling area of the cooled heat sink of the oil-immersed transformer and improving the heat dissipation efficiency.
As shown in fig. 3 and 5, a rectangular second frame 71 is disposed at the top of the second support 7 of this embodiment, a second support plate 712 is disposed below a pair of second frames 711 of the second frame 71, and two sides of the bottom of the auxiliary fan 6 are respectively disposed on the second support plate 712, so that the auxiliary fan 6 is slidably disposed along the second frames 711 in a gap of the second frame 71, and the position of the auxiliary fan 6 can be adjusted, and the optimal heat dissipation efficiency can be achieved by adjusting the position of the auxiliary fan 6 in combination with the temperature of the transformer oil acquired by the temperature acquisition module 3 in real time.
In this embodiment, the length of the frame adjacent to the second frame 711 in the second frame 71 is the same as the diameter of the auxiliary fan 6, so that the auxiliary fan 6 is prevented from shifting during sliding.
In this embodiment, the wind directions of the main fan 1 and the auxiliary fan 6 pass through the gap between adjacent fins in the cooled radiator of the oil-immersed transformer, instead of being blown to the oil tank by the radiator, so as to fully utilize the heat dissipation area of the radiator and obtain a better cooling effect.
In this embodiment, the distance between the end surfaces of the air outlets of the main fan 1 and the auxiliary fan 6 and the outer end surface of the cooled radiator of the oil-immersed transformer is 20mm, so that the conditions of vibration, support swing, blade separation and the like generated when the main fan 1 and the auxiliary fan 6 operate are avoided, and the cooling fins are further touched and damaged.
In this embodiment, the main fan 1 and the auxiliary fan 6 are axial fans of SF6B-4 type, circular structure, 600mm diameter, 10000m3/h maximum air volume, 960r/min rotation speed, 165Pa wind pressure and 1000W power. The fan has the characteristics of firm structural performance, large air quantity, good penetrability, energy conservation and low noise.
As shown in fig. 2, the cooling device of this embodiment further includes a speed regulator 8, a power supply end of the main fan 1 is connected to the processor unit 4 through the speed regulator 8, and a worker can change the rotation speed of the main fan 1 according to the temperature of transformer oil in the cooled oil-immersed transformer by using the speed regulator 8, reduce the rotation speed of the main fan 1 when the temperature is low, and increase the rotation speed of the main fan 1 when the temperature is high, thereby prolonging the service life of the main fan 1.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023205165.2U CN215183399U (en) | 2020-12-25 | 2020-12-25 | Cooling unit for oil immersed transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023205165.2U CN215183399U (en) | 2020-12-25 | 2020-12-25 | Cooling unit for oil immersed transformers |
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| CN215183399U true CN215183399U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023205165.2U Active CN215183399U (en) | 2020-12-25 | 2020-12-25 | Cooling unit for oil immersed transformers |
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| CN (1) | CN215183399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446593A (en) * | 2022-03-11 | 2022-05-06 | 江西埾鑫电气有限公司 | Cooling device for oil-immersed power transformer |
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2020
- 2020-12-25 CN CN202023205165.2U patent/CN215183399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446593A (en) * | 2022-03-11 | 2022-05-06 | 江西埾鑫电气有限公司 | Cooling device for oil-immersed power transformer |
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