CN111816414B - Rapid cooling method based on outdoor transformer - Google Patents
Rapid cooling method based on outdoor transformer Download PDFInfo
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- CN111816414B CN111816414B CN202010605321.XA CN202010605321A CN111816414B CN 111816414 B CN111816414 B CN 111816414B CN 202010605321 A CN202010605321 A CN 202010605321A CN 111816414 B CN111816414 B CN 111816414B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses a rapid cooling method based on an outdoor transformer, wherein one end of a connecting pipe is fixedly connected with an oil pump, spoilers are fixedly arranged inside the connecting pipe and a cooling oil pipe, one end of the oil pump is connected with the cooling oil pipe, one end of the middle part of a transformer box body, which is far away from the oil tank, is symmetrically and fixedly provided with a cooling fan, a dust filter is fixedly arranged on the surface of the cooling fan, two side walls of the transformer box body are symmetrically provided with air holes, cooling oil spirally flows inside the cooling oil pipe by using the spoilers, the flowing path of the cooling oil is prolonged, the cooling oil is cooled more thoroughly, heat inside the transformer is discharged outwards by matching the cooling fan with the air holes, the cooling fan and the cooling oil are used for cooling the inside of the transformer from different angles, the temperature inside the transformer is ensured not to be overhigh, and the cooling oil pipe is cooled by the, the cooling rate of the cooling oil is increased.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a rapid cooling method based on an outdoor transformer.
Background
The transformer is a static electrical equipment used for transforming alternating voltage and current to transmit alternating current energy, and realizes electric energy transmission according to the principle of electromagnetic induction, the transformer can be divided into a power transformer, a test transformer, an instrument transformer and a transformer with special purpose, the power transformer is necessary equipment for power transmission and distribution and power consumer distribution, the test transformer is used for carrying out withstand voltage (boosting) test on the electrical equipment, the instrument transformer is used for electrical measurement and relay protection of a distribution system, and the transformer with special purpose comprises a smelting electric furnace transformer, an electric welding transformer, an electrolysis rectifier transformer, a small-sized regulating transformer and the like;
at present, the rapid cooling of the interior of the transformer cannot be realized, so that heat is always remained in the interior of the transformer, internal elements of the transformer are always used in a high-temperature state, and the service life of the transformer is shortened.
Disclosure of Invention
The invention provides a rapid cooling method based on an outdoor transformer, which can effectively solve the problems that rapid cooling of the interior of the transformer cannot be realized, heat is always remained in the interior of the transformer, so that the internal elements of the transformer are always used in a high-temperature state, and the service life of the transformer is shortened.
In order to achieve the purpose, the invention provides the following technical scheme: a rapid cooling method based on an outdoor transformer is characterized in that: the method comprises the following steps:
s1: the cooling oil absorbs heat generated by a coil in the oil tank, and carries out cooling treatment on elements in the oil tank, and meanwhile, the cooling oil is matched with a cooling oil purification mechanism to remove impurities in oil products;
s2: pumping cooling oil in the oil tank into the cooling oil pipe through an oil pump for cooling, wherein the cooling oil in the cooling oil pipe enters the oil tank;
s3: cooling oil flows along the spoiler in the cooling oil pipe, so that the flowing time of the cooling oil is prolonged, and the cooling oil is cooled more thoroughly;
s4: the cooling oil pipe and the oil tank are cooled by blowing air through the cooling fan, so that the temperature of the surfaces of the cooling oil pipe and the oil tank is reduced;
s5: the air holes enable air inside the transformer to circulate, heat inside the transformer can be discharged through the air holes by using a cooling fan, and meanwhile, the arc extinguishing mechanism is connected in series to ensure normal connection, so that danger caused by arc is prevented;
s6: and finally, when the cooling oil is supplemented in the later period, the quality of the internal cooling oil can be ensured through the deterioration prevention mechanism, and the phenomena that the oil product is reduced and the heat absorption capacity is reduced are prevented.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure, safe and convenient use,
1. the cooling oil circulation cooling device is provided with a quick cooling mechanism, and cooling oil can realize circulation flow in an oil tank and the cooling oil pipe through the matching use of an oil pump and the cooling oil pipe, so that the cooling oil absorbing heat in the oil tank can be fully cooled in the cooling oil pipe, the phenomenon that the temperature of the cooling oil in the oil tank is too high to cause that internal elements of a transformer cannot be normally used is avoided, meanwhile, through the use of a spoiler, the cooling oil can spirally flow in the cooling oil pipe, the flowing path of the cooling oil is prolonged, the flowing time is further prolonged, the cooling oil can be cooled more thoroughly, and the phenomenon that the heat still remains in the cooling oil to cause that the internal part of the transformer cannot;
the cooling oil pipe is matched with the cooling oil pipe, the heat inside the transformer is discharged outwards, the cooling fan and the cooling oil are matched to cool the inside of the transformer from different angles, the cooling rate is improved, the temperature inside the transformer is not too high, the internal elements of the transformer are always at proper temperature, the service life of the transformer is prolonged, the number of times of overhauling the transformer is reduced, the cooling fan plays a cooling role on the cooling oil pipe, and the cooling rate of the cooling oil is accelerated.
2. Be provided with the dirt board, rain-proof swash plate, baffle and dust guard, cooperation through dirt board and dust guard is used, the guard action has been played to the transformer inside, the filterable effect has been played to the air that gets into the transformer inside, it is inside to avoid having dust and impurity to get into the transformer, dust and impurity fall on the junction of transformer inner member circuit lead to the circuit to leak easily and make the component damage, the security of device has been improved, cooperation through rain-proof swash plate and baffle is used, make inside the device can prevent that the rainwater from splashing into the transformer when keeping ventilative, it leads to the inside electric leakage of transformer or the fire to avoid the rainwater drippage to transformer inner member or circuit junction, the life of device has been improved.
3. The anti-degradation mechanism is arranged, the central shaft and the wind power blade are matched for use, the stirring blade is driven by wind power to rotate, cooling oil in the oil storage barrel is stirred, precipitates at the bottom of the cooling oil caused by long-time storage are avoided, the stirring blade ensures that the cooling oil circularly flows along the inner wall of the oil storage barrel in the circumferential direction, and meanwhile, the filter plate can rotate along with the central shaft, so that the filtering and purifying effects on the cooling oil are achieved, and impurities in the cooling oil are fully filtered;
through the cooperation use of impurity collecting plate and closing plate, make impurity after the filtration stay impurity collecting plate inside all the time, guarantee that impurity can not mix into the coolant oil again inside, make the coolant oil keep clean all the time, it deposits and can guarantee that the coolant oil can not take place the degradation depositing the in-process with impurity residue to reduce the coolant oil, the coolant oil after avoiding the degradation influences normal cooling effect, and the coolant oil after the degradation can reduce the life of oil tank internals, prevent simultaneously that the whole journey of degradation takes wind-force drive, make device environmental protection and energy saving more in the use.
4. Be provided with coolant oil purification mechanism, cooperation through purifying box and purifying plate is used, purify the coolant oil in the coolant oil circulative cooling in-process, get rid of the impurity in the coolant oil, it leads to the coolant oil degradation to avoid inside impurity remaining in the coolant oil use, and impurity can influence the life of coolant oil and transformer inner member, the use through the bottom plate simultaneously, be convenient for directly take out the impurity that will filter the stay, avoid impurity to remain inside purifying box, provide very big facility for clearing up impurity, use through the dewatering plate, be convenient for absorb the moisture that contains in the coolant oil, avoid the inside normal use that remains moisture influence oil tank inner coil of coolant oil.
5. The device is provided with a series arc extinguishing mechanism, the device is protected by matching the carbon dioxide arc extinguishing chamber and the vacuum arc extinguishing chamber, the influence of electric arc generated in the process of switching on and off the transformer power supply on the use performance of internal elements of the transformer is avoided, the service life of the device is prolonged, meanwhile, the carbon dioxide arc extinguishing chamber and the vacuum arc extinguishing chamber are connected in series by matching the lower connecting plate and the upper connecting plate, the arc extinguishing process is buffered, the electric arc residue is avoided, the space occupied by the vacuum arc extinguishing chamber can be reduced, the use of harmful gas in vacuum can be reduced, the vacuum gas filled in the vacuum arc extinguishing chamber can pollute the atmosphere, the greenhouse effect is influenced, the use of the vacuum arc extinguishing chamber is reduced, the device is more environment-friendly in the use process, and the electric arc transmission time is prolonged by using the separation grid plates, so that the arc is extinguished more thoroughly.
In conclusion, the rapid cooling mechanism cools the cooling oil, so that the cooling oil is kept at a low temperature all the time, the transformer can be cooled better, the cooling efficiency of the cooling oil is improved, the cooling oil can be purified by the cooling oil purifying mechanism and the degradation preventing mechanism all the time, the cooling oil is kept clean all the time, the cleanliness of the cooling oil is improved, the cooling oil is treated in different modes, the service time of the cooling oil in the actual application process is prolonged, the consumption and the replacement of the cooling oil are reduced, the service efficiency of the cooling oil is improved, and the cost loss of the transformer in the actual application process is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the installation structure of the cooling oil pipe of the present invention;
FIG. 3 is a schematic view of the internal structure of the fuel tank of the present invention;
FIG. 4 is a schematic structural view of a cooling oil purification mechanism according to the present invention;
FIG. 5 is a schematic structural view of the rapid cooling mechanism of the present invention;
FIG. 6 is a schematic structural diagram of the area A in FIG. 5 according to the present invention;
FIG. 7 is a schematic view of the structure of the deterioration prevention mechanism of the present invention;
FIG. 8 is a schematic view showing an installation structure of the foreign material collecting plate according to the present invention;
FIG. 9 is a schematic diagram of a series arc extinguishing mechanism according to the present invention;
FIG. 10 is a flowchart of the rapid cool down step of the present invention.
Reference numbers in the figures: 1. a transformer tank body; 2. an oil tank; 3. an iron core; 4. a coil; 5. a power supply access port; 6. a contact terminal; 7. cooling the oil pipe;
8. a cooling oil purification mechanism; 801. purifying the box body; 802. an upper cover; 803. fastening a bolt; 804. a handle; 805. a purification plate; 806. a filtration pore; 807. a base plate; 808. a dewatering plate;
9. a connecting pipe;
10. a rapid cooling mechanism; 1001. an oil pump; 1002. a spoiler; 1003. a heat radiation fan; 1004. a dust filter plate; 1005. air holes are formed; 1006. a rain-proof sloping plate; 1007. a baffle plate; 1008. installing a frame; 1009. a dust-proof plate;
11. a deterioration prevention mechanism; 1101. an oil storage barrel; 1102. a central shaft; 1103. a wind blade; 1104. fixing the loop; 1105. a turbulence blade; 1106. a fixing plate; 1107. a filter plate; 1108. an impurity collecting plate; 1109. a sealing plate; 1110. an oil delivery pipe;
12. a series arc extinguishing mechanism; 1201. a carbon dioxide arc extinguish chamber; 1202. a vacuum arc-extinguishing chamber; 1203. an electromagnetic repulsion base; 1204. an insulating pull rod; 1205. a movable conductive rod; 1206. a bellows; 1207. a moving contact; 1208. a static conductive rod; 1209. static contact; 1210. a connecting channel; 1211. a sealing block; 1212. a lower connecting plate; 1213. an upper connecting plate; 1214. and (4) separating grid pieces.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-9, the invention provides a technical scheme, a rapid cooling method based on an outdoor transformer, which includes a transformer tank 1, an oil tank 2 is fixedly installed inside the transformer tank 1, iron cores 3 are fixedly installed inside the oil tank 2 at equal intervals, a coil 4 is wound on the surface of each iron core 3, a power inlet 5 is fixedly installed at one end of the top of the oil tank 2, contact terminals 6 are symmetrically and fixedly installed at positions of the top of the oil tank 2, which are located on one side of the power inlet 5, on both sides of the wall of the oil tank 2, cooling oil pipes 7 are fixedly installed at equal intervals, a cooling oil purification mechanism 8 is fixedly installed at one end of each cooling oil pipe 7, a connecting pipe 9 is fixedly connected at one end of each cooling oil purification mechanism 8, a rapid cooling mechanism 10 is installed on the side wall of the transformer tank 1, an anti-degradation mechanism 11 is fixedly installed at one end;
the rapid cooling mechanism 10 comprises an oil pump 1001, a spoiler 1002, a heat radiation fan 1003, a dust filter 1004, air holes 1005, a rainproof sloping plate 1006, a baffle 1007, a mounting frame 1008 and a dustproof plate 1009;
one end of the connecting pipe 9 is fixedly connected with an oil pump 1001, the cooling oil is enabled to realize circulating flow in the oil tank 2 and the cooling oil pipe 7 by the matching use of the oil pump 1001 and the cooling oil pipe 7, the cooling oil absorbing heat in the oil tank 2 can be fully cooled in the cooling oil pipe 7, the problem that the temperature of the cooling oil in the oil tank 2 is too high to cause the internal elements of the transformer to be incapable of being normally used is avoided, spoilers 1002 are fixedly arranged in the connecting pipe 9 and the cooling oil pipe 7, the spoilers 1002 are spiral, the cooling oil is enabled to spirally flow in the cooling oil pipe 7 by the use of the spoilers 1002, the flowing path of the cooling oil is prolonged, the flowing time is further prolonged, the cooling oil is enabled to be more thorough, the problem that the heat is still remained in the cooling oil to cause the internal parts of the transformer to be incapable of realizing, the end of the middle part of the transformer box body 1, which is far away from the oil tank 2, is symmetrically and fixedly provided with a heat radiation fan 1003, the surface of the heat radiation fan 1003 is fixedly provided with a dust filtering plate 1004, the middle parts of the dust filtering plate 1004 and the dust preventing plate 1009 are respectively provided with a dust filtering hole, the interior of the transformer is protected by matching the dust filtering plate 1004 and the dust preventing plate 1009, the air entering the interior of the transformer is filtered, the dust and impurities are prevented from entering the interior of the transformer, the dust and the impurities fall at the connecting part of element circuits in the interior of the transformer, which is easy to cause circuit leakage and damage of the elements, the safety of the device is improved, two side walls of the transformer box body 1 are symmetrically provided with air holes 1005, the heat in the interior of the transformer is discharged outwards by matching the heat radiation fan 1003 and the air holes 1005, and the heat radiation fan 1003 and cooling oil are, the cooling rate is improved, the internal temperature of the transformer is not overhigh, so that the internal elements of the transformer are always at the proper temperature, the service life of the transformer is prolonged, the times of overhauling the transformer are reduced, the cooling fan 1003 plays a role in cooling the cooling oil pipe 7, the cooling rate of the cooling oil is accelerated, the rain-proof inclined plate 1006 is fixedly installed in the air vent 1005 at equal intervals, the included angle between the rain-proof inclined plate 1006 and the horizontal plane is 40 degrees, one end of the rain-proof inclined plate 1006 is fixedly connected with a baffle plate 1007, the device keeps ventilation by the matching use of the rain-proof inclined plate 1006 and the baffle plate 1007, can prevent rainwater from splashing into the transformer at the same time, avoid rainwater from dripping into the internal elements or the line connection part of the transformer to cause electric leakage or fire in the transformer, the service life of the device is prolonged, a mounting frame 1008 is fixedly installed at the, a dust-proof plate 1009 is fixedly mounted at one end of the mounting frame 1008, and the surface of the dust-proof plate 1009 is an inclined surface, so that the dust-proof plate 1009 can be directly cleaned without detaching the dust-proof plate 1009;
the cooling oil purification mechanism 8 comprises a purification box body 801, an upper cover 802, a fastening bolt 803, a handle 804, a purification plate 805, a filter hole 806, a bottom plate 807 and a dehydration plate 808;
one end of the cooling oil pipe 7 is fixedly connected with a purifying box body 801, the top end of the purifying box body 801 is provided with an upper cover 802, the edge of the bottom end of the upper cover 802 is bonded with a sealing gasket to ensure the sealing between the upper cover 802 and the purifying box body 801, four corner positions of the top end of the upper cover 802 are fixedly provided with fastening bolts 803, the middle part of the top end of the upper cover 802 is fixedly provided with a handle 804, the middle part of the bottom end of the upper cover 802 is fixedly connected with a purifying plate 805, through the matching use of the purifying box body 801 and the purifying plate 805, the cooling oil is purified in the cooling oil circulation cooling process to remove impurities in the cooling oil, the deterioration of the cooling oil caused by the impurities remained in the cooling oil using process is avoided, the impurities can influence the service life of the cooling oil and internal elements of the transformer, the middle part of the purifying plate 805 is provided with a filtering hole 806, the bottom end of the purifying plate 805 is fixedly connected, through the use of the bottom plate 807, impurities left after filtration can be conveniently and directly taken out, the impurities are prevented from remaining in the purification box body 801, great convenience is provided for cleaning the impurities, cooling oil cannot be taken out when the bottom plate 807 is taken out, a dehydration plate 808 is fixedly arranged at the position, located on one side of the purification plate 805, of the bottom end of the upper cover 802, calcium chloride is filled in the dehydration plate 808, through the use of the dehydration plate 808, moisture contained in the cooling oil is conveniently absorbed, and the influence of the moisture remaining in the cooling oil on the normal use of the coil 4 in the oil tank 2 is avoided;
the deterioration prevention mechanism 11 comprises an oil storage barrel 1101, a central shaft 1102, a wind blade 1103, a fixed ring sleeve 1104, a flow stirring blade 1105, a fixed plate 1106, a filter plate 1107, an impurity collecting plate 1108, a sealing plate 1109 and an oil delivery pipe 1110;
an oil storage barrel 1101 is fixedly installed at one end of the top of a transformer box body 1, a central shaft 1102 is rotatably installed in the middle of the oil storage barrel 1101, wind blades 1103 are symmetrically and fixedly installed at two ends of the central shaft 1102, through the matching use of the central shaft 1102 and the wind blades 1103, the cooling oil in the oil storage barrel 1101 is stirred by driving turbulence blades 1105 to rotate by wind power, the bottom of the cooling oil caused by long-time storage is prevented from generating precipitates, the turbulence blades 1105 ensure that the cooling oil circularly flows along the circumferential direction of the inner wall of the oil storage barrel 1101, fixed ring sleeves 1104 are symmetrically and fixedly installed on the surface of the central shaft 1102, the turbulence blades 1105 are uniformly distributed on the outer side of the fixed ring sleeves 1104 along the circumferential direction, the two turbulence blades 1105 are respectively located at two sides of a filter plate 1107, a fixing plate 1106 is fixedly installed at one end of the middle of the central shaft, impurity collecting plates 1108 are fixedly installed on two side walls of the filter plate 1107 at equal intervals, the impurity collecting plates 1108 are arc-shaped plates, the filter plate 1107 can rotate along with the central shaft 1102, the cooling oil is filtered and purified, impurities in the cooling oil are fully filtered, the filtered impurities are always kept inside the impurity collecting plates 1108 through the matching use of the impurity collecting plates 1108 and sealing plates 1109, the impurities are prevented from being mixed into the cooling oil again, the cooling oil is always kept clean, the cooling oil can be prevented from being degraded in the storage process by reducing the precipitation and residue of the cooling oil, the normal cooling effect is prevented from being influenced by the degraded cooling oil, the service life of internal elements of the oil tank 2 is shortened by the degraded cooling oil, the sealing plates 1109 are fixedly installed at two ends of the impurity collecting plates 1108, and an oil conveying pipe 1110 is fixedly connected to the middle part of the bottom end of the oil storage barrel 1101, the bottom end of the oil delivery pipe 1110 is connected with the oil tank 2, so that cooling oil can be conveniently delivered into the oil tank 2;
the series arc extinguishing mechanism 12 comprises a carbon dioxide arc extinguishing chamber 1201, a vacuum arc extinguishing chamber 1202, an electromagnetic repulsion base 1203, an insulating pull rod 1204, a movable conducting rod 1205, a corrugated pipe 1206, a movable contact 1207, a static conducting rod 1208, a static contact 1209, a connecting channel 1210, a sealing block 1211, a lower connecting plate 1212, an upper connecting plate 1213 and a separation grid 1214;
the middle part of the top end of the transformer box body 1 is fixedly provided with carbon dioxide arc extinguish chambers 1201 with equal distance, the top end of the transformer box body 1 is fixedly provided with a vacuum arc extinguish chamber 1202 at the position of one side of the carbon dioxide arc extinguish chamber 1201, the device is protected by matching the carbon dioxide arc extinguish chamber 1201 and the vacuum arc extinguish chamber 1202, the influence of electric arc generated in the power supply breaking process of the transformer on the service performance of the internal elements of the transformer is avoided, the service life of the device is prolonged, the bottom ends of the carbon dioxide arc extinguish chamber 1201 and the vacuum arc extinguish chamber 1202 are both fixedly provided with electromagnetic repulsion bases 1203, the middle part of the top end of the electromagnetic repulsion bases is fixedly connected with insulating pull rods 1204, one side of the bottom end of the carbon dioxide arc extinguish chamber 1201 is fixedly connected with a movable conducting rod 1205, the movable conducting rod 1205 is connected with the carbon dioxide arc extinguish chamber 1201 and, the top end of the insulating pull rod 1204 is fixedly connected with a corrugated pipe 1206, the top end of the corrugated pipe 1206 is fixedly provided with a moving contact 1207, the top ends of the carbon dioxide arc extinguish chamber 1201 and the vacuum arc extinguish chamber 1202 are both fixedly provided with a static conductive rod 1208, the bottom end of the static conductive rod 1208 is fixedly connected with a static contact 1209, the middle parts of the carbon dioxide arc extinguish chamber 1201 and the vacuum arc extinguish chamber 1202 are fixedly connected with a connecting channel 1210, the middle part of the connecting channel 1210 is fixedly provided with a sealing block 1211, the bottom end inside the connecting channel 1210 is fixedly provided with a lower connecting plate 1212, the top end inside the connecting channel 1210 is fixedly provided with an upper connecting plate 1213, the two ends of the lower connecting plate 1212 and the upper connecting plate 1213 both extend into the carbon dioxide arc extinguish chamber 1201 and the vacuum arc extinguish chamber 1202, the upper connecting plate 1213 is fixedly connected with the static contact 1209, make carbon dioxide arc-extinguishing chamber 1201 and vacuum arc-extinguishing chamber 1202 establish ties each other, play the effect of buffering to the arc extinguishing process, avoid electric arc to remain, and can reduce the space that vacuum arc-extinguishing chamber 1202 occupied, can reduce the use of inside vacuum harmful gas, the vacuum gas of the inside packing of vacuum arc-extinguishing chamber 1202 can cause the pollution to the atmosphere, the use that reduces vacuum arc-extinguishing chamber 1202 can make the device more environmental protection in the use, the surperficial equidistance fixed mounting of lower connecting plate 1212 and upper junction plate 1213 has separation grid piece 1214, through the use of separation grid piece 1214, the time of extension electric arc transmission, make electric arc eliminate more thoroughly.
As shown in fig. 10: the rapid cooling method of the transformer comprises the following steps:
s1: the cooling oil absorbs heat generated by a coil in the oil tank 2, and carries out cooling treatment on elements in the oil tank 2, and meanwhile, the cooling oil is matched with a cooling oil purification mechanism 8 to remove impurities in oil products;
s2: cooling oil in the oil tank 2 is pumped into the cooling oil pipe 7 through an oil pump for cooling, and the cooling oil in the cooling oil pipe 7 enters the oil tank 2;
s3: the cooling oil flows along the spoiler 1002 in the cooling oil pipe 7, so that the flowing time of the cooling oil is prolonged, and the cooling oil is cooled more thoroughly;
s4: the cooling oil pipe 7 and the oil tank are cooled by blowing air through the cooling fan 1003, so that the temperature of the surfaces of the cooling oil pipe 7 and the oil tank 2 is reduced;
s5: the air holes 1005 enable air inside the transformer to circulate, heat inside the transformer can be discharged through the air holes 1005 by using the cooling fan 1003, and meanwhile, the arc extinguishing mechanism 12 is connected in series to guarantee normal connection, so that danger caused by arc is prevented;
s6: and finally, when the cooling oil is supplemented in the later period, the quality of the internal cooling oil can be ensured through the deterioration prevention mechanism 11, and the phenomena that the oil product is reduced and the heat absorption capacity is reduced are prevented.
The working principle and the using process of the invention are as follows: in the process of using the rapid cooling method based on the outdoor transformer, the oil tank 2 and the cooling oil pipe 7 are both filled with cooling oil, the cooling oil can absorb heat generated in the transformer, the oil pump 1001 is started to pump the cooling oil containing heat in the oil tank 2 into the cooling oil pipe 7 for cooling, the cooling oil in the cooling oil pipe 7 enters the oil tank 2, so that the cooling oil can circularly flow between the oil tank 2 and the cooling oil pipe 7 for cooling, thereby avoiding the situation that the temperature of the cooling oil in the oil tank 2 is too high to cause the abnormal use of the internal elements of the transformer, when the cooling oil flows in the cooling oil pipe 7, the spoiler 1002 plays a role of choked flow for the cooling oil, cooling oil flows spirally along the spoiler 1002 inside the cooling oil pipe 7, the flowing path of the cooling oil is prolonged, and the flowing time is further increased, so that the cooling oil is cooled more thoroughly;
meanwhile, the heat dissipation fan 1003 is started to perform the air cooling function on the inside of the transformer box 1, heat generated inside the transformer box 1 and on the surface of the oil tank 2 is discharged through the air holes 1005, the temperature inside the transformer box 1 is further ensured not to be too high, so that the internal elements of the transformer are always at proper temperature, the service life of the transformer is prolonged, the heat dissipation fan 1003 also performs air cooling on the cooling oil pipe 7, the cooling rate of cooling oil is increased, the residual temperature of the cooling oil is avoided, in the working process of the heat dissipation fan 1003, the dust filter 1004 and the dust filter 1009 play a role in filtering air entering the transformer box 1, dust and impurities are prevented from entering the transformer box 1, the dust and the impurities fall at the connection position of the lines of the internal elements of the transformer, so that the lines are easy to leak electricity to damage the elements, and the rain-proof 1006 inclined plate and the baffle 1007 play a role in protecting, air inside the transformer tank body 1 keeps circulating, and no rainwater can enter the transformer tank body 1;
the cooling oil flows through the purification box body 801 in the flowing and circulating process, the cooling oil enters the purification box body 801, the purification plate 805 can filter the cooling oil to remove impurities in the cooling oil, the filtered impurities are left on the surfaces of the purification plate 805 and the bottom plate 807, the filtered cooling oil flows backwards, the dehydration plate 808 can absorb moisture contained in the cooling oil to prevent residual moisture in the cooling oil from influencing the normal use of the coil 4 in the oil tank 2, if the purification box body 801 needs to be cleaned, only the fastening bolt 803 needs to be screwed, the fixing of the upper cover 802 is loosened, the upper cover 802 is pulled upwards by the handle 804 to lift the purification plate 805 and the bottom plate upwards, the filtered impurities can be taken out, and the impurities are prevented from remaining in the purification box body 801;
the transformer can generate instantaneous current in the switching process, the current is conducted to the carbon dioxide arc extinguish chamber 1201 and the vacuum arc extinguish chamber 1202 through the movable conducting rod 1205 and the static conducting rod 1208, the electromagnetic repulsion base 1203 is started to pull the corrugated pipe 1206 downwards, the corrugated pipe 1206 contracts, so that the movable contact 1207 and the static contact 1209 are separated from each other, the current generates electric arc between the movable contact 1207 and the static contact 1209 until the bottom end of the movable contact 1207 is contacted with the lower connecting plate 1212, the electric arc can extend forwards along the lower connecting plate 1212 and the upper connecting plate 1213 until the electric arc is transmitted to the separation grid 1214, the electric arc transmission time is prolonged, the electric arc is completely extinguished, the carbon dioxide arc extinguish chamber 1201 and the vacuum arc extinguish chamber 1202 are connected in series, the arc extinguishing process is buffered, the electric arc residue is avoided, the space occupied by the vacuum arc extinguish chamber 1202 can be reduced, and the, so that the device is more environment-friendly in the using process,
the inside of the oil storage barrel 1101 can store cooling oil, after the cooling oil in the oil tank 2 is consumed to a certain degree, the cooling oil is injected into the oil tank 2 through an oil pipeline 1110, when wind exists in the external environment, the wind blows the wind force blade 1103, the wind force blade 1103 and the central shaft 1102 are driven to rotate, the fixed ring sleeve 1104 and the stirring blade 1105 rotate along with the central shaft 1102, the stirring blade 1105 stirs the cooling oil in the middle of the oil storage barrel 1101, so that the cooling oil in the oil storage barrel 1101 circularly flows along the inner wall of the oil storage barrel 1101 in the circumferential direction, the filter plate 1107 rotates along with the central shaft 1102, the filtering and purifying effects are achieved on the cooling oil, impurities in the cooling oil are fully filtered, the impurities can be adhered to the surface of the filter plate 1107 during the rotation process, after the wind stops, the central shaft 1102 stops rotating, due to the gravity effect, the filter plate can be vertical downwards, the impurities on the surface of the filter plate 1107 can fall into the impurity collecting plate 1108, guarantee that impurity can not sneak into the cooling oil inside again for the cooling oil remains clean throughout, reduces the cooling oil and deposits and impurity and remain and to guarantee that the cooling oil can not take place the degradation depositing the in-process, avoids the cooling oil after the degradation to influence normal cooling effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A rapid cooling method based on an outdoor transformer is characterized in that: the method comprises the following steps:
s1: the cooling oil absorbs heat generated by a coil in the oil tank (2), and carries out cooling treatment on elements in the oil tank (2) and removes impurities in oil products by matching with a cooling oil purification mechanism (8);
s2: cooling oil in the oil tank (2) is pumped into the cooling oil pipe (7) through the oil pump for cooling, and the cooling oil in the cooling oil pipe (7) enters the oil tank (2);
s3: cooling oil flows along the spoiler (1002) in the cooling oil pipe (7), so that the flowing time of the cooling oil is prolonged, and the cooling oil is cooled more thoroughly;
s4: the cooling oil pipe (7) and the oil tank are cooled by blowing through the cooling fan (1003), so that the temperature of the surfaces of the cooling oil pipe (7) and the oil tank (2) is reduced;
s5: the air holes (1005) enable air inside the transformer to circulate, heat inside the transformer can be discharged from the air holes (1005) by using the heat dissipation fan (1003), and meanwhile, the arc extinguishing mechanism (12) is connected in series to ensure normal connection, so that the danger caused by arc is prevented;
s6: finally, when the cooling oil is supplemented in the later period, the quality of the internal cooling oil can be ensured through the deterioration prevention mechanism (11), and the phenomena that the oil product is reduced and the heat absorption capacity is reduced are prevented;
the deterioration prevention mechanism (11) comprises an oil storage barrel (1101), a central shaft (1102), a wind blade (1103), a fixed ring sleeve (1104), a flow stirring blade (1105), a fixed plate (1106), a filter plate (1107), an impurity collecting plate (1108), a sealing plate (1109) and an oil delivery pipe (1110);
an oil storage barrel (1101) is fixedly arranged at one end of the top of the transformer box body (1), a central shaft (1102) is rotatably arranged in the middle of the oil storage barrel (1101), wind blades (1103) are symmetrically and fixedly installed at two ends of the central shaft (1102), fixed ring sleeves (1104) are symmetrically and fixedly installed on the surface of the central shaft (1102), the outer side of the fixed ring sleeve (1104) is uniformly distributed with turbulence blades (1105) along the circumferential direction, a fixing plate (1106) is fixedly arranged at one end of the middle part of the central shaft (1102), the bottom end of the fixed plate (1106) is fixedly provided with a filter plate (1107), two side walls of the filter plate (1107) are fixedly provided with impurity collecting plates (1108) at equal intervals, sealing plates (1109) are fixedly arranged at two ends of the impurity collecting plate (1108), an oil delivery pipe (1110) is fixedly connected to the middle of the bottom end of the oil storage barrel (1101);
the series arc extinguishing mechanism (12) comprises a carbon dioxide arc extinguishing chamber (1201), a vacuum arc extinguishing chamber (1202), an electromagnetic repulsion base (1203), an insulating pull rod (1204), a movable conducting rod (1205), a corrugated pipe (1206), a movable contact (1207), a static conducting rod (1208), a static contact (1209), a connecting channel (1210), a sealing block (1211), a lower connecting plate (1212), an upper connecting plate (1213) and a separation grid sheet (1214);
the middle part of the top end of the transformer box body (1) is fixedly provided with carbon dioxide arc-extinguishing chambers (1201) at equal intervals, the top end of the transformer box body (1) is fixedly provided with a vacuum arc-extinguishing chamber (1202) at one side of the carbon dioxide arc-extinguishing chamber (1201), the bottom ends of the carbon dioxide arc-extinguishing chamber (1201) and the vacuum arc-extinguishing chamber (1202) are both fixedly provided with electromagnetic repulsion bases (1203), the middle part of the top end of each electromagnetic repulsion base (1203) is fixedly connected with an insulating pull rod (1204), one side of the bottom end of the carbon dioxide arc-extinguishing chamber (1201) is fixedly connected with a movable conducting rod (1205), the top end of each insulating pull rod (1204) is fixedly connected with a corrugated pipe (1206), the top end of each corrugated pipe (1206) is fixedly provided with a movable contact (1207), and, the bottom end fixedly connected with static contact (1209) of static conducting rod (1208), the middle part fixedly connected with connecting channel (1210) of carbon dioxide explosion chamber (1201) and vacuum explosion chamber (1202), the middle part fixedly mounted of connecting channel (1210) has sealed piece (1211), the inside bottom end fixedly mounted of connecting channel (1210) has lower connecting plate (1212), the inside top end fixedly mounted of connecting channel (1210) has upper junction plate (1213), the surface equidistance fixed mounting of lower connecting plate (1212) and upper junction plate (1213) has separating grid piece (1214).
2. The rapid cooling method based on the outdoor transformer according to claim 1, comprising a transformer box body (1), wherein an oil tank (2) is fixedly installed inside the transformer box body (1), iron cores (3) are fixedly installed inside the oil tank (2) at equal intervals, a coil (4) is wound on the surface of each iron core (3), a power inlet (5) is fixedly installed at one end of the top of the oil tank (2), contact terminals (6) are symmetrically and fixedly installed at positions of one side of the power inlet (5) at the top of the oil tank (2), cooling oil pipes (7) are fixedly installed at equal intervals on two side walls of the oil tank (2), a cooling oil purification mechanism (8) is fixedly installed at one end of each cooling oil pipe (7), and a connecting pipe (9) is fixedly connected to one end of each cooling oil purification mechanism (8), a rapid cooling mechanism (10) is installed on the side wall of the transformer box body (1), an anti-degradation mechanism (11) is fixedly installed at one end of the top of the transformer box body (1), and a series arc extinguishing mechanism (12) is fixedly installed in the middle of the top end of the transformer box body (1);
the rapid cooling mechanism (10) comprises an oil pump (1001), a spoiler (1002), a cooling fan (1003), a dust filter plate (1004), air holes (1005), a rainproof inclined plate (1006), a baffle plate (1007), an installation frame (1008) and a dustproof plate (1009);
one end of the connecting pipe (9) is fixedly connected with an oil pump (1001), spoilers (1002) are fixedly arranged inside the connecting pipe (9) and the cooling oil pipe (7), one end of the oil pump (1001) is connected with the cooling oil pipe (7), one end of the middle part of the transformer box body (1) far away from the oil tank (2) is symmetrically and fixedly provided with a heat radiation fan (1003), a dust filtering plate (1004) is fixedly arranged on the surface of the heat radiating fan (1003), air holes (1005) are symmetrically formed in two side walls of the transformer box body (1), rain-proof inclined plates (1006) are fixedly arranged in the air holes (1005) at equal intervals, one end of the rainproof inclined plate (1006) is fixedly connected with a baffle (1007), the outer side of the transformer box body (1) is fixedly provided with an installation frame (1008) at the position of one side of the air hole (1005), and one end of the installation frame (1008) is fixedly provided with a dustproof plate (1009);
spoiler (1002) are the heliciform, the contained angle between rain-proof swash plate (1006) and the horizontal plane is 40 degrees, strain dirt hole has all been seted up at the middle part of dirt board (1004) and dust guard (1009), the surface of dust guard (1009) is the inclined plane.
3. The rapid cooling method based on the outdoor transformer of claim 1, wherein the cooling oil purification mechanism (8) comprises a purification box body (801), an upper cover (802), a fastening bolt (803), a handle (804), a purification plate (805), a filter hole (806), a bottom plate (807) and a dehydration plate (808);
the one end fixedly connected with of cooling oil pipe (7) purifies box (801), upper cover (802) are installed on the top of purifying box (801), the equal fixed mounting in four corner position departments on the top of upper cover (802) has fastening bolt (803), the middle part fixed mounting on the top of upper cover (802) has handle (804), the middle part fixedly connected with purifying plate (805) of upper cover (802) bottom, filtration hole (806) have been seted up at the middle part of purifying plate (805), the bottom fixedly connected with bottom plate (807) of purifying plate (805), the bottom of upper cover (802) is located purifying plate (805) one side position department fixed mounting and has dehydration board (808).
4. The rapid cooling method based on the outdoor transformer according to claim 3, wherein sealing gaskets are bonded to edges of the bottom end of the upper cover (802), a through hole identical to the filtering hole (806) is formed in the middle of the bottom plate (807), and calcium chloride is filled in the dewatering plate (808).
5. The rapid cooling method based on the outdoor transformer of claim 2, wherein the two turbulence blades (1105) are respectively located at two sides of the filter plate (1107), the impurity collecting plate (1108) is an arc-shaped plate, and the bottom end of the oil pipeline (1110) is connected with the oil tank (2).
6. The rapid cooling method based on the outdoor transformer is characterized in that the movable conducting rod (1205) is connected with the carbon dioxide arc extinguish chamber (1201) and the insulating pull rod (1204) inside the vacuum arc extinguish chamber (1202), and the movable conducting rod (1205) and the static conducting rod (1208) are connected with the contact terminal (6).
7. The rapid cooling method based on the outdoor transformer is characterized in that two ends of the lower connecting plate (1212) and the upper connecting plate (1213) extend to the interiors of the carbon dioxide arc extinguish chamber (1201) and the vacuum arc extinguish chamber (1202), the upper connecting plate (1213) is fixedly connected with the fixed contact (1209), and two ends of the lower connecting plate (1212) are located below the movable contact (1207).
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363358Y (en) * | 1998-07-24 | 2000-02-09 | 西安变压器厂 | Forced oil circulation air-cooling device for transformer |
| CN2796070Y (en) * | 2005-04-28 | 2006-07-12 | 成都旭光电子股份有限公司 | Vacuum arc-extinguish room |
| CN103432850A (en) * | 2013-08-02 | 2013-12-11 | 高雪真 | Air purification device |
| CN103594280A (en) * | 2013-10-31 | 2014-02-19 | 西安交通大学 | Novel composite contact vacuum arc-extinguishing chamber and vacuum circuit breaker with same |
| CN104766765A (en) * | 2015-02-10 | 2015-07-08 | 郑州大学 | Novel vacuum fracture and CO2 gas fracture series-connection high-voltage alternating current-direct current circuit breaker based on permanent magnetic mechanism |
| CN105551881A (en) * | 2016-01-11 | 2016-05-04 | 许继集团有限公司 | Vacuum arc-extinguishing chamber, vacuum arc-extinguishing chamber contacts and direct current vacuum circuit breaker |
| CN207425552U (en) * | 2017-10-23 | 2018-05-29 | 万家通用智能电气有限公司 | A kind of oil-immersed transformer structure |
| CN108826492A (en) * | 2018-05-31 | 2018-11-16 | 安徽省皓宇环保设备有限公司 | A kind of farm's sterilization and purification device |
| CN210751349U (en) * | 2019-06-28 | 2020-06-16 | 云南经济管理学院 | Extraction and distillation equipment for processing coordination compound |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205159256U (en) * | 2015-12-16 | 2016-04-13 | 浙江永继电气有限公司 | Novel circuit breaker |
-
2020
- 2020-06-29 CN CN202010605321.XA patent/CN111816414B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363358Y (en) * | 1998-07-24 | 2000-02-09 | 西安变压器厂 | Forced oil circulation air-cooling device for transformer |
| CN2796070Y (en) * | 2005-04-28 | 2006-07-12 | 成都旭光电子股份有限公司 | Vacuum arc-extinguish room |
| CN103432850A (en) * | 2013-08-02 | 2013-12-11 | 高雪真 | Air purification device |
| CN103594280A (en) * | 2013-10-31 | 2014-02-19 | 西安交通大学 | Novel composite contact vacuum arc-extinguishing chamber and vacuum circuit breaker with same |
| CN104766765A (en) * | 2015-02-10 | 2015-07-08 | 郑州大学 | Novel vacuum fracture and CO2 gas fracture series-connection high-voltage alternating current-direct current circuit breaker based on permanent magnetic mechanism |
| CN105551881A (en) * | 2016-01-11 | 2016-05-04 | 许继集团有限公司 | Vacuum arc-extinguishing chamber, vacuum arc-extinguishing chamber contacts and direct current vacuum circuit breaker |
| CN207425552U (en) * | 2017-10-23 | 2018-05-29 | 万家通用智能电气有限公司 | A kind of oil-immersed transformer structure |
| CN108826492A (en) * | 2018-05-31 | 2018-11-16 | 安徽省皓宇环保设备有限公司 | A kind of farm's sterilization and purification device |
| CN210751349U (en) * | 2019-06-28 | 2020-06-16 | 云南经济管理学院 | Extraction and distillation equipment for processing coordination compound |
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