CN220753194U - Transformer cooling device based on forced air cooling and forced oil circulation - Google Patents
Transformer cooling device based on forced air cooling and forced oil circulation Download PDFInfo
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- CN220753194U CN220753194U CN202322263743.5U CN202322263743U CN220753194U CN 220753194 U CN220753194 U CN 220753194U CN 202322263743 U CN202322263743 U CN 202322263743U CN 220753194 U CN220753194 U CN 220753194U
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- 238000001816 cooling Methods 0.000 title claims abstract description 159
- 239000003921 oil Substances 0.000 claims abstract description 173
- 230000001502 supplementing effect Effects 0.000 claims abstract description 27
- 239000010724 circulating oil Substances 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The utility model discloses a transformer cooling device based on forced air cooling and forced oil circulation, which comprises a transformer body and a circulating cooling oil way, wherein the circulating cooling oil way comprises an oil outlet pipe and an oil return pipe, a first cooling pipe and a second cooling pipe are connected in parallel between the oil outlet pipe and the oil return pipe, a first ball valve and a first electromagnetic valve are arranged on the first cooling pipe, a second ball valve I, a second electromagnetic valve, a forced air cooler and a second ball valve II are sequentially arranged on the second cooling pipe, a first thermometer is arranged on the oil outlet pipe, a filter, a first oil supplementing pipe and a circulating oil pump are sequentially arranged on the oil return pipe, and a first oil supplementing valve is arranged on the first oil supplementing pipe. The device not only can accurately control the oil temperature in the circulating cooling oil way and improve the service efficiency of the transformer body and prolong the service life of the transformer body, but also can thoroughly solve the risk that water leakage is easy to bring water into the transformer so as to ensure the safe and reliable operation of the transformer body.
Description
Technical Field
The utility model belongs to the technical field of electromechanical equipment, and particularly relates to a transformer cooling device based on forced air cooling and forced oil circulation.
Background
A power transformer is a stationary electric device for converting an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values, and is a stationary electric device for converting the ac voltage and current to transmit ac power; the electric energy transmission is realized according to the principle of electromagnetic induction. In the running process of the existing power transformer, the winding and the iron core work to generate much heat to cause the temperature of transformer oil to rise, the heat enables the oil close to the iron core and the winding to expand and rise due to heating, and the heat is dissipated through a transformer cooler through up-down convection of the oil, so that the normal running of the transformer is ensured. At present, a power transformer generally adopts an oil-air cooling or oil-water cooling mode to cool transformer oil, the oil-water cooling mode is that a transformer body is directly connected with a cooler through a valve, a fan is adopted to cool the transformer oil, when the cooler leaks oil and other faults, the operation can be carried out after the valve is closed and power failure occurs, and the normal operation of the whole system can be influenced; the oil is brought into the water cooler by the oil pump, and then flows back into the water cooler after being cooled, the cooling effect of the water cooling mode is not ideal, the oil for the transformer can be generally reduced by about 5 ℃, the requirement for the circulating cooling of the transformer oil can not be met, the use risk of the water cooler is high, water cooling is easy to occur, leakage occurs easily, when the water cooler leaks, water is easy to enter the transformer body, and the explosion accident of the transformer can be caused when the water leakage is serious. Therefore, it is objectively required to develop a cooling device of a transformer based on forced air cooling and forced oil circulation, which can not only improve the use efficiency of the transformer, but also ensure the safe and reliable operation of the transformer.
Disclosure of Invention
The utility model aims to provide a transformer cooling device based on forced air cooling and strong oil circulation, which can improve the use efficiency of a transformer and ensure the safe and reliable operation of the transformer.
The utility model aims at realizing the purposes, the transformer comprises a transformer body and a circulating cooling oil way, wherein the circulating cooling oil way comprises an oil outlet pipe and an oil return pipe, the oil outlet pipe is connected with an oil outlet on the upper side of the transformer body, the oil return pipe is connected with an oil inlet on the lower side of the transformer body, a first cooling pipe and a second cooling pipe are connected in parallel between the oil outlet pipe and the oil return pipe, a first ball valve and a first electromagnetic valve are arranged on the first cooling pipe, a second ball valve I, a second electromagnetic valve, a forced air cooler and a second ball valve II are arranged on the second cooling pipe in sequence, a first thermometer is arranged on the oil outlet pipe, a filter, a first oil supplementing pipe and a circulating oil pump are arranged on the oil return pipe in sequence, and a first oil supplementing valve is arranged on the first oil supplementing pipe.
Compared with the existing cooling mode, the device has the advantages that: the device optimizes the structure of the circulating cooling oil way, the first thermometer is arranged on the oil outlet pipe, the oil temperature of the oil outlet can be timely monitored by the first thermometer, the path of oil circulation is reasonably selected according to the monitoring result, the oil temperature in the circulating cooling oil way is accurately controlled, the running temperature of the transformer iron core and the coil can be controlled within 60 ℃, the service efficiency of the transformer body can be effectively improved, the loss of the transformer body is reduced, and the service life of the transformer body is prolonged; secondly, on the basis that an oil circulation pipeline can be selected, a forced air cooler is adopted to replace a water cooler, the forced air cooler has a good cooling effect, the risk that water is easy to bring into a transformer due to water leakage is thoroughly solved by arranging the forced air cooler, the safe and reliable operation of a transformer body can be ensured, and meanwhile, when the oil leakage fault occurs in the cooler, the two arranged oil circulation paths can timely close a valve, so that the shutdown and maintenance of the transformer body are avoided, and the normal operation of the whole production system is ensured; the device is provided with the filter and the first oil supplementing pipe on the oil return pipeline, the filter can filter the circulating oil of the transformer, the quality of the oil is improved, and the first oil supplementing pipe can properly supplement the oil for the transformer so as to ensure the efficient operation of the transformer body. The device has the advantages of reasonable structure, long service life, safe and stable operation and easy popularization and application.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of a forced air cooler according to the present utility model;
in the figure: the transformer comprises a transformer body, 2-oil outlet pipes, 21-first thermometers, 22-oil separators, 23-exhaust pipes, 24-exhaust valves, 3-oil return pipes, 31-filters, 32-second thermometers, 33-first oil supplementing pipes, 34-circulating oil pumps, 35-first oil supplementing valves, 36-buffer oil tanks, 37-second oil supplementing pipes, 38-second oil supplementing valves, 4-first cooling pipes, 41-first ball valves, 42-second solenoid valves, 5-second cooling pipes, 51-second ball valves I, 52-second solenoid valves, 53-second ball valves II, 54-cooling boxes, 55-cooling pipes, 56-cooling holes, 57-cooling fans, 58-sleeves, 59-driving motors, 510-cooling fan blades, 511-driven gears, 512-driving gears, 513-cooling fins and 514-dustproof nets.
Detailed Description
The utility model is further described below with reference to the accompanying drawings, without limiting the utility model in any way, and any alterations or modifications based on the teachings of the utility model are within the scope of the utility model.
As shown in fig. 1-2, the utility model comprises a transformer body 1 and a circulating cooling oil path, the circulating cooling oil path comprises an oil outlet pipe 2 and an oil return pipe 3, the oil outlet pipe 2 is connected with an oil outlet on the upper side of the transformer body 1, the oil return pipe 3 is connected with an oil inlet on the lower side of the transformer body 1, a first cooling pipe 4 and a second cooling pipe 5 are connected in parallel between the oil outlet pipe 2 and the oil return pipe 3, a first ball valve 41 and a first electromagnetic valve 41 are installed on the first cooling pipe 4, a second ball valve I51, a second electromagnetic valve 52, a forced air cooler and a second ball valve II 53 are installed on the second cooling pipe 5 in sequence, a first thermometer 21 is arranged on the oil outlet pipe 2, a filter 31, a first oil supplementing pipe 33 and a circulating oil pump 34 are installed on the oil return pipe 3 in sequence, an explosion-proof oil pump used in the prior art is adopted, a first oil supplementing valve 35 is installed on the first oil supplementing pipe 33, the first cooling pipe 4 and the second cooling pipe 5 can switch oil circulation paths, the working efficiency of the transformer body 1 is not affected, the normal working life of the transformer body 1 is prolonged, and the service life of the transformer body is limited, and the service life of the transformer 1 is prolonged.
The working principle of the device is as follows: when the transformer body 1 works normally, the circulating oil pump 34 is opened, transformer oil in the transformer body 4 is pumped out from the oil outlet, the pumped transformer oil flows along the oil outlet pipe 2, the oil outlet pipe 2 is provided with the first thermometer 21, the first thermometer 21 is provided with the oil temperature capable of monitoring the transformer oil in the oil outlet pipe 2 in time, if the oil temperature of the transformer oil is higher than a set value, the second ball valve I51, the second solenoid valve 52 and the second ball valve II 53 are controlled to be opened, the transformer oil in the oil outlet pipe 2 enters the forced air cooler through the second cooling pipe 5 for cooling, the forced air cooler has a better cooling effect, the transformer oil can be uniformly cooled to be below the set value, the cooled transformer oil flows back into the transformer body 1 through the oil return pipe 3 under the action of the circulating oil pump 34, and in the process of circulating operation of the transformer oil, if the transformer oil temperature in the oil outlet pipe 2 monitored by the first thermometer 21 is lower than the first set value, the second ball valve I51, the second solenoid valve 52 and the second ball valve II 53 can be closed, the first ball valve 41 and the first solenoid valve 41 are opened, the transformer oil in the oil outlet pipe 2 enters the oil return pipe 3 through the first cooling pipe 4 and then enters the transformer body 1 through the oil return pipe 3 for recycling, meanwhile, if the equipment on the first cooling pipe 4 or the second cooling pipe 5 needs to be maintained or replaced in the running process of the transformer body 1, the first cooling pipe 4 or the second cooling pipe 5 can be reasonably selected to work according to the actual situation, thus the normal running of the transformer body 1 is ensured, the device reasonably selects the path of the oil circulation according to the monitoring result of the first thermometer 21, the transformer oil temperature in the accurate control circulation cooling oil circuit can control transformer core and coil operating temperature within 60 ℃, can effectively improve the availability factor of transformer body 1, reduce the loss of transformer body 1, prolong the life of transformer body 1, and the forced air cooler that adopts replaces the water cooler, forced air cooler has better cooling effect, the setting of forced air cooler has thoroughly solved the easy risk of taking water to advance transformer body 1 that leaks, can guarantee the safe and reliable operation of transformer body 1, in addition, the filter 31 of setting can filter transformer circulation oil, improve the quality of oil, the first oil supplementing pipe 33 of setting can carry out appropriate replenishment to transformer oil, in order to guarantee the high-efficient operation of transformer body 1.
Further, the forced air cooler comprises a cooling box 54 and a cooling pipe 55, the cooling pipe 55 is spirally arranged in the cooling box 54, the cooling pipe 55 is of a spiral structure, the cooling area is large, a plurality of cooling holes 56 are respectively formed in the box wall of the cooling box 54, a plurality of cooling fans 57 are arranged on the side wall of the cooling box 54, the cooling fans 57 adopt a structure used in the prior art, the cooling fans 57 operate, the cooling box 54 can be used for blowing cold air, the blown cold air cools transformer oil in the cooling pipe 55, meanwhile, the cold air after absorbing heat is discharged through the cooling holes 56, the good heat dissipation and cooling effects can be achieved, in order to achieve the good cooling effect, the top air cooling mechanism is arranged at the top of the cooling box 54, and the bottom air cooling mechanism is arranged at the bottom of the cooling box 54. Preferably, the top air cooling mechanism comprises a sleeve 58, a driving motor 59 and cooling fan blades 510, the driving motor 59 is of a structure used in the prior art, a finished product motor is purchased in the market directly according to the power used, the sleeve 58 is rotatably installed at the top of the cooling box 54, the upper end of the cooling pipe 55 is positioned in the sleeve 58, a driven gear 511 is installed on the sleeve positioned above the cooling box 54, the driving motor 59 is installed above the cooling box 54, a driving gear 512 is installed on an output shaft of the driving motor 59, the driving gear 512 is meshed with the driven gear 511, the cooling fan blades 510 are at least 3, and the cooling fan blades 510 are uniformly installed at the lower end of the sleeve 58 positioned in the cooling box 54; the working method of the top air cooling mechanism is that the driving motor 59 drives the driving gear 512 to rotate, the driving gear 512 drives the sleeve 58 to rotate through the driven gear 511 in the rotating process, the sleeve 58 can drive the cooling fan blades 510 to rotate in the rotating process, the rotating cooling fan blades 510 can accelerate the air flow in the cooling box 54, and then the transformer oil on the upper portion of the cooling pipe 55 can be cooled, the bottom air cooling mechanism and the top air cooling mechanism are identical in structure, and the bottom air cooling mechanism can cool the transformer oil on the lower portion of the cooling pipe 55 in the same way, so that a good cooling effect is achieved.
Preferably, in order to achieve a better heat dissipation effect, the cooling speed of the transformer oil in the cooling pipe 55 is improved, a plurality of heat dissipation fins 513 are arranged on the outer wall of the cooling tank 54, and the heat dissipation fins 513 can quickly absorb heat on the cooling tank 54, so that the cooling speed of the cooling pipe 55 is increased. The cooling box 54 adopts the copper material, and copper material has good thermal diffusivity, the inside of louvre 56 is provided with dust screen 514, and the dust screen 514 of setting can prevent that the dust from entering into in the cooling box 54 to guarantee that the cooling box 54 realizes better cooling effect.
Further, the buffer oil tank 36 and the second thermometer 32 are installed on the oil return pipe 3 between the filter 31 and the oil supplementing pipe 33, the buffer oil tank 36 can buffer the oil pressure and the oil quantity which circularly enter the transformer body 1, the oil quantity and the oil pressure which enter the transformer body 1 are stable, the second thermometer 32 can monitor the oil temperature in the buffer oil tank 36, the second oil supplementing pipe 37 is arranged on the buffer oil tank 36, the second oil supplementing valve 38 is installed on the second oil supplementing pipe 37, the second oil supplementing pipe 37 can supplement fresh transformer oil into the buffer oil tank 36, and the oil utilization of the transformer body 1 is ensured to be sufficient.
Further, the oil separator 22 is installed on the oil outlet pipe 2, the oil temperature of the transformer oil discharged from the transformer body 1 is increased, the heated transformer oil may contain water vapor, the set oil separator 22 performs oil-gas separation on the heated transformer oil, the purity of the transformer oil can be improved, the exhaust pipe 23 is installed on the oil separator 22, the exhaust pipe 24 is installed on the exhaust pipe 23, the set exhaust pipe 24 can timely discharge the separated water vapor, and then the normal operation of a circulating cooling oil way can be ensured.
Claims (8)
1. The transformer cooling device based on forced air cooling and forced oil circulation comprises a transformer body (1) and a circulating cooling oil way, and is characterized in that the circulating cooling oil way comprises an oil outlet pipe (2) and an oil return pipe (3), the oil outlet pipe (2) is connected with an oil outlet on the upper side of the transformer body (1), the oil return pipe (3) is connected with an oil inlet on the lower side of the transformer body (1), a first cooling pipe (4) and a second cooling pipe (5) are connected in parallel between the oil outlet pipe (2) and the oil return pipe (3), a first ball valve (41) and a first electromagnetic valve (42) are arranged on the first cooling pipe (4), a second ball valve I (51), a second electromagnetic valve (52), a forced air cooler and a second ball valve II (53) are sequentially arranged on the second cooling pipe (5), a first thermometer (21) is arranged on the oil outlet pipe (2), a filter (31), a first oil supplementing pipe (33) and a circulating oil pump (34) are sequentially arranged on the first oil supplementing pipe (33).
2. The transformer cooling device based on forced air cooling and forced oil circulation according to claim 1, wherein: the forced air cooler comprises a cooling box (54) and a cooling pipe (55), wherein the cooling pipe (55) is spirally arranged in the cooling box (54), a plurality of radiating holes (56) are respectively formed in the box wall of the cooling box (54), a plurality of cooling fans (57) are arranged on the side wall in the cooling box (54), a top air cooling mechanism is arranged at the top in the cooling box (54), and a bottom air cooling mechanism is arranged at the bottom in the cooling box (54).
3. The transformer cooling device based on forced air cooling and forced oil circulation according to claim 2, wherein: the top air cooling mechanism comprises a sleeve (58), a driving motor (59) and cooling fan blades (510), wherein the sleeve (58) is rotatably arranged at the top of a cooling box (54), the upper end of a cooling pipe (55) is positioned in the sleeve (58), a driven gear (511) is arranged on the sleeve positioned above the cooling box (54), the driving motor (59) is arranged above the cooling box (54), a driving gear (512) is arranged on an output shaft of the driving motor (59), the driving gear (512) is meshed with the driven gear (511), the cooling fan blades (510) are at least 3, and the cooling fan blades (510) are uniformly arranged at the lower end of the sleeve (58) positioned in the cooling box (54); the bottom air cooling mechanism and the top air cooling mechanism have the same structure.
4. The transformer cooling device based on forced air cooling and forced oil circulation according to claim 2, wherein: a plurality of radiating fins (513) are arranged on the outer wall of the cooling box (54).
5. The transformer cooling device based on forced air cooling and forced oil circulation according to claim 2, wherein: the cooling box (54) is made of copper.
6. The transformer cooling device based on forced air cooling and forced oil circulation according to claim 2, wherein: a dust screen (514) is arranged in the radiating hole (56).
7. The transformer cooling device based on forced air cooling and forced oil circulation according to claim 1, wherein: an oil return pipe (3) between the filter (31) and the oil supplementing pipe (33) is provided with a buffer oil tank (36) and a second thermometer (32), the buffer oil tank (36) is provided with a second oil supplementing pipe (37), and the second oil supplementing pipe (37) is provided with a second oil supplementing valve (38).
8. The transformer cooling device based on forced air cooling and forced oil circulation according to claim 1, wherein: the oil outlet pipe (2) is provided with an oil-gas separator (22), the oil-gas separator (22) is provided with an exhaust pipe (23), and the exhaust pipe (23) is provided with an exhaust valve (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322263743.5U CN220753194U (en) | 2023-08-23 | 2023-08-23 | Transformer cooling device based on forced air cooling and forced oil circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322263743.5U CN220753194U (en) | 2023-08-23 | 2023-08-23 | Transformer cooling device based on forced air cooling and forced oil circulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220753194U true CN220753194U (en) | 2024-04-09 |
Family
ID=90565963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322263743.5U Active CN220753194U (en) | 2023-08-23 | 2023-08-23 | Transformer cooling device based on forced air cooling and forced oil circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220753194U (en) |
-
2023
- 2023-08-23 CN CN202322263743.5U patent/CN220753194U/en active Active
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