CN220493463U - Radiating device of transformer neutral point grounding resistor cabinet - Google Patents
Radiating device of transformer neutral point grounding resistor cabinet Download PDFInfo
- Publication number
- CN220493463U CN220493463U CN202322130881.6U CN202322130881U CN220493463U CN 220493463 U CN220493463 U CN 220493463U CN 202322130881 U CN202322130881 U CN 202322130881U CN 220493463 U CN220493463 U CN 220493463U
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- cabinet body
- resistor cabinet
- cooling device
- resistor
- cooling
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- 230000007935 neutral effect Effects 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 239000000428 dust Substances 0.000 claims abstract description 25
- 230000017525 heat dissipation Effects 0.000 claims abstract description 21
- 239000000110 cooling liquid Substances 0.000 claims description 33
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005855 radiation Effects 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000005350 ferromagnetic resonance Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model discloses a heat dissipation device of a transformer neutral point grounding resistor cabinet, which comprises a resistor cabinet body, an air cooling device and a liquid cooling device, wherein the air cooling device and the liquid cooling device are arranged in the resistor cabinet body; the liquid cooling device is arranged at the rear of the resistor cabinet body; the air cooling device is arranged at the rear outer side of the resistor cabinet body; the air cooling device is arranged corresponding to the liquid cooling device. According to the radiating device of the transformer neutral point grounding resistor cabinet, disclosed by the utility model, the cooling effect is better through liquid cooling and wind cooling, and the dust screen is arranged at the negative pressure fan, so that dust is effectively prevented from falling into the cabinet body to influence the air exhaust and radiating effect, the structure is simple, the function is reliable, and the rapid heat radiation of the resistor cabinet is effectively realized.
Description
Technical Field
The utility model relates to the technical field of transformer neutral point grounding resistor cabinets, in particular to a heat dissipation device of a transformer neutral point grounding resistor cabinet.
Background
The neutral point of the generator is grounded with high resistance to limit the grounding current and prevent various overvoltages, the neutral point can limit the fault current to a proper value through the grounding of the resistor, the sensitivity of relay protection is improved to act on tripping, meanwhile, the fault point is only possible to generate partial slight burn, the transient overvoltage is limited to 2.6 times of the normal line voltage to the neutral point voltage, the reignition of the arc is limited, the damage to main equipment caused by the overvoltage of an arc gap is prevented, and the ferromagnetic resonance overvoltage can be effectively prevented, so that the safe operation of the generator is ensured.
As is well known, a heat dissipation device for a resistor cabinet is an accessory device for cooling a working environment in the resistor cabinet, so that each component in the resistor cabinet has a good working ring shape, and the working efficiency of the component is improved, and the heat dissipation device is widely used in the field of heat dissipation in the cabinet. The existing resistor cabinet heat dissipation device is found in use that the heat dissipation effect on the inside of the resistor cabinet is poor, and the normal operation of a power grid is affected; and through the vent, dust enters into the inside of resistance cabinet, and long-term use can lead to the resistance card surface dust on the resistor serious, can seriously influence the effect of resistor self-heat dissipation, reduces the life of resistor.
Disclosure of Invention
The utility model aims to provide the heat dissipation device of the transformer neutral point grounding resistor cabinet, which has better cooling effect through liquid cooling and wind cooling, and the dust screen is arranged at the negative pressure fan, so that dust is effectively prevented from falling into the cabinet body to influence the air exhaust and heat dissipation effect, the structure is simple, the function is reliable, and the rapid heat dissipation of the resistor cabinet is effectively realized.
In order to achieve the above purpose, the utility model provides a heat dissipation device of a transformer neutral point grounding resistor cabinet, which comprises a resistor cabinet body, an air cooling device and a liquid cooling device, wherein the air cooling device and the liquid cooling device are arranged in the resistor cabinet body; the liquid cooling device is arranged at the rear of the resistor cabinet body; the air cooling device is arranged at the rear outer side of the resistor cabinet body; the air cooling device is arranged corresponding to the liquid cooling device.
Preferably, the liquid cooling device comprises a cooling liquid tank and a cooling liquid pipe, and the cooling liquid tank is arranged below the resistor cabinet body; the cooling liquid pipe disc is arranged at the rear part inside the resistor cabinet body; the cooling liquid pipe is fixed at the rear of the resistor cabinet body through a fixed block; the cooling liquid pipe stretches into the cooling liquid box.
Preferably, the left side of the cooling liquid pipe is connected with a liquid outlet pipe, and the liquid outlet and inlet pipe is connected with a submersible pump; the right side of the cooling liquid pipe is connected with a liquid inlet pipe; the number of the fixing blocks is six, and the upper side and the lower side of the fixing blocks are fixed on the resistor cabinet body through screws.
Preferably, the air cooling device comprises an air inlet fan and a fan frame arranged outside the air inlet fan, a vent is arranged on the front surface of the fan frame, and a dust screen is arranged on the surface of the vent; the resistor cabinet is characterized in that a driving motor is arranged on the resistor cabinet body, a rotating shaft is arranged on the driving motor, and the air inlet fan is connected to the rotating shaft.
Preferably, the number of the air inlet fans is 4; the resistance cabinet body with the corresponding position of air inlet fan is provided with the air inlet window, air inlet window surface is provided with the dust screen.
Preferably, the left side and the right side of the resistor cabinet body are provided with radiating holes, and the surfaces of the radiating holes are provided with dustproof nets; a rain shelter is arranged above the heat dissipation holes.
Preferably, a temperature sensor is arranged at the top in the resistance cabinet body.
Therefore, the radiating device of the transformer neutral point grounding resistor cabinet has the advantages that the cooling effect is better through liquid cooling and wind cooling, the dust screen is arranged at the negative pressure fan, dust is effectively prevented from falling into the cabinet body to influence the air exhaust and radiating effect, the structure is simple, the function is reliable, and the rapid radiating of the resistor cabinet is effectively realized.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of a heat dissipating device of a transformer neutral grounding resistor cabinet according to an embodiment of the present utility model;
FIG. 2 is a side view of an embodiment of a heat sink for a transformer neutral grounding resistor cabinet of the present utility model;
fig. 3 is a schematic diagram of a back plate of an embodiment of a heat dissipating device of a transformer neutral grounding resistor cabinet according to the present utility model.
Reference numerals
1. A resistor cabinet body; 2. a heat radiation hole; 3. rain shelter; 4. a temperature sensor; 5. a coolant tube; 6. a fixed block; 7. a screw; 8. a cooling liquid tank; 9. a liquid inlet pipe; 10. a liquid outlet pipe; 11. submersible pump; 12. a fan frame; 13. a vent; 14. an air inlet window; 15. a driving motor; 16. a rotating shaft; 17. an air inlet fan; 18. a dust-proof net.
Detailed Description
The technical scheme of the utility model is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
As shown in fig. 1, the utility model provides a heat dissipation device of a transformer neutral point grounding resistor cabinet, which comprises a resistor cabinet body 1, an air cooling device and a liquid cooling device, wherein the air cooling device and the liquid cooling device are arranged in the resistor cabinet body 1. The liquid cooling device sets up the rear at the resistance cabinet body 1, and the liquid cooling device includes coolant tank 8 and coolant pipe 5, and coolant tank 8 sets up in resistance cabinet body 1 below, separates coolant tank 8 and device installation department through the baffle, prevents that coolant tank 8 weeping from making the device in the resistance cabinet impaired. The rear of the inside at resistance cabinet body 1 is established to cooling liquid pipe 5 dish, and cooling liquid pipe 5 stretches into the inside of cooling liquid box 8, and cooling liquid pipe 5 left side is connected with drain pipe 10, and drain pipe 10 is connected with immersible pump 11, and immersible pump 11 can be with the coolant in the cooling liquid pipe 5 in the cooling liquid box 8, and the cooling liquid pipe right side is connected with feed liquor pipe 9, and the coolant gets into cooling liquid pipe 5 from feed liquor pipe 9 for the circulation in cooling liquid pipe 5 is accomplished to the coolant liquid, cools off the surrounding air. The cooling liquid pipe 5 is fixed at the rear of the resistor cabinet body 1 through the fixed blocks 6, the number of the fixed blocks 6 is six, the three fixed blocks are longitudinally arranged, the two fixed blocks are transversely arranged, the upper side and the lower side of the fixed blocks 6 are fixed on the resistor cabinet body 1 through screws 7, the cooling liquid pipe 5 is fixed on the backboard of the resistor cabinet body 1, and the cooling liquid pipe 5 is prevented from falling.
As shown in fig. 2 and 3, the air cooling device is disposed at the rear outer side of the resistor cabinet body 1. The air cooling device comprises an air inlet fan 17 and a fan frame 12 arranged on the outer side of the air inlet fan 17, the fan frame 12 can protect the air inlet fan 17 from being corroded by wind, rain, dust and the like, a vent opening 13 is formed in the front face of the fan frame 12, the air inlet fan 17 can suck air through the vent opening 13, a dust screen 18 is arranged on the surface of the vent opening 13, dust in the air can be blocked on the outer side by the dust screen 18, and dust is prevented from entering damaged equipment. The resistor cabinet body 1 is provided with a driving motor 15, the driving motor 15 is provided with a rotating shaft 16, the rotating shaft 16 is connected with air inlet fans 17, and the number of the air inlet fans 17 is 4. The air inlet fan 17 blows air outside the resistor cabinet into the resistor cabinet, and takes away heat in the resistor cabinet, so that the radiating effect is achieved. The resistance cabinet body 1 is provided with the air inlet window 14 with the position that the fan 17 corresponds, and air inlet window 14 is also provided with four. The air inlet window 14 surface is provided with dust screen 18, and dust screen 18 will blow in the air further separation dust, prevents that the dust from getting into and piling up on equipment and influencing the heat dissipation. The air inlet fan 17 faces the cooling liquid pipe 5, the blown air is cooled through the cooling liquid pipe 5, and the cold air is blown into the resistor cabinet to take away heat in the resistor cabinet for cooling.
As shown in fig. 1 and 2, the left and right sides of the resistor cabinet body 1 are provided with radiating holes 2, the radiating holes 2 can radiate heat radiated by cool air with heat and equipment per se out of the resistor cabinet, dust screens 18 are arranged on the surfaces of the radiating holes 2, dust in the air is prevented from entering the resistor cabinet to influence heat radiation, a rain shelter 3 is arranged above the radiating holes 2, and rain and snow are prevented from entering the resistor cabinet through the rain shelter 3 in rainy and snowy days, and the equipment is damaged due to damp. The top is provided with temperature sensor 4 in the resistance cabinet body 1, and temperature sensor 4 can real-time supervision resistance cabinet internal temperature, when the temperature exceeded the settlement temperature, starts forced air cooling equipment and liquid cooling equipment immediately and dispels the heat the cooling to protection internal equipment.
Therefore, the radiating device of the transformer neutral point grounding resistor cabinet has the advantages that the cooling effect is better through liquid cooling and wind cooling, the dust screen is arranged at the negative pressure fan, dust is effectively prevented from falling into the cabinet body to influence the air exhaust and radiating effect, the structure is simple, the function is reliable, and the rapid radiating of the resistor cabinet is effectively realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.
Claims (7)
1. The utility model provides a heat abstractor of transformer neutral point ground connection resistance cabinet which characterized in that: the electric resistance cabinet comprises a resistance cabinet body, and an air cooling device and a liquid cooling device which are arranged in the resistance cabinet body; the liquid cooling device is arranged at the rear of the resistor cabinet body; the air cooling device is arranged at the rear outer side of the resistor cabinet body; the air cooling device is arranged corresponding to the liquid cooling device.
2. The heat dissipation device of a transformer neutral grounding resistor cabinet according to claim 1, wherein: the liquid cooling device comprises a cooling liquid tank and a cooling liquid pipe, and the cooling liquid tank is arranged below the resistor cabinet body; the cooling liquid pipe disc is arranged at the rear part inside the resistor cabinet body; the cooling liquid pipe is fixed at the rear of the resistor cabinet body through a fixed block; the cooling liquid pipe stretches into the cooling liquid box.
3. The heat dissipation device of a transformer neutral grounding resistor cabinet according to claim 2, wherein: the left side of the cooling liquid pipe is connected with a liquid outlet pipe, and the liquid outlet pipe is connected with a submersible pump; the right side of the cooling liquid pipe is connected with a liquid inlet pipe; the number of the fixing blocks is six, and the upper side and the lower side of the fixing blocks are fixed on the resistor cabinet body through screws.
4. The heat dissipation device of a transformer neutral grounding resistor cabinet according to claim 1, wherein: the air cooling device comprises an air inlet fan and a fan frame arranged on the outer side of the air inlet fan, a vent is arranged on the front face of the fan frame, and a dust screen is arranged on the surface of the vent; the resistor cabinet is characterized in that a driving motor is arranged on the resistor cabinet body, a rotating shaft is arranged on the driving motor, and the air inlet fan is connected to the rotating shaft.
5. The heat dissipation device for a transformer neutral grounding resistor cabinet of claim 4, wherein: the number of the air inlet fans is 4; the resistance cabinet body with the corresponding position of air inlet fan is provided with the air inlet window, air inlet window surface is provided with the dust screen.
6. The heat dissipation device of a transformer neutral grounding resistor cabinet according to claim 1, wherein: the left side and the right side of the resistor cabinet body are provided with radiating holes, and the surfaces of the radiating holes are provided with dustproof nets; a rain shelter is arranged above the heat dissipation holes.
7. The heat dissipation device for a transformer neutral grounding resistor cabinet of claim 6, wherein: the top in the resistance cabinet body is provided with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322130881.6U CN220493463U (en) | 2023-08-09 | 2023-08-09 | Radiating device of transformer neutral point grounding resistor cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322130881.6U CN220493463U (en) | 2023-08-09 | 2023-08-09 | Radiating device of transformer neutral point grounding resistor cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220493463U true CN220493463U (en) | 2024-02-13 |
Family
ID=89830333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322130881.6U Active CN220493463U (en) | 2023-08-09 | 2023-08-09 | Radiating device of transformer neutral point grounding resistor cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220493463U (en) |
-
2023
- 2023-08-09 CN CN202322130881.6U patent/CN220493463U/en active Active
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