CN111899969B - Oil-immersed transformer for electric power - Google Patents
Oil-immersed transformer for electric power Download PDFInfo
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- CN111899969B CN111899969B CN202010982665.2A CN202010982665A CN111899969B CN 111899969 B CN111899969 B CN 111899969B CN 202010982665 A CN202010982665 A CN 202010982665A CN 111899969 B CN111899969 B CN 111899969B
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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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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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
- H01F27/085—Cooling by ambient air
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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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/16—Water 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
- H01F27/18—Liquid cooling by evaporating liquids
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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
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
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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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
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Abstract
An oil-immersed transformer for electric power comprises a transformer box body; the heat absorption plate is arranged on the transformer box body, and a heat dissipation part is arranged on the heat absorption plate; the water spraying direction of the water spraying head faces the heat dissipation piece; the air blowing direction of the first air supply branch pipe faces the heat radiating piece; the first heat conduction pipe is communicated with the first oil collecting ball and the second oil collecting ball; the first oil delivery pipe is communicated with the first oil collecting ball; the spraying cylinder is arranged in the first connecting box; the blowing direction of the second air supply branch pipe faces the first heat conduction pipe; the connecting pipe is communicated with the first water collecting cavity and the second water collecting cavity; the second heat conduction pipe is communicated with the first oil collecting cavity and the second oil collecting cavity and penetrates through the connecting pipe; the third oil delivery pipe is communicated with the first oil collecting cavity; the third water delivery branch pipe is communicated with the second water collecting cavity. The invention has the advantages that by arranging various heat dissipation structures, the heat dissipation efficiency and the heat dissipation effect are obviously improved, heat dissipation in different modes can be automatically carried out according to different oil temperatures, the intelligent heat dissipation device is more intelligent, the energy saving is facilitated, and the use effect is good.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to an oil-immersed transformer for electric power.
Background
The power transformer is one of main equipment of a power plant and a substation, the transformer has multiple functions, not only can raise voltage to transmit electric energy to a power utilization area, but also can reduce the voltage to use voltages of various levels so as to meet the requirement of power utilization, in the oil-immersed transformer, a transformer oil tank adopts a closed design, transformer oil is filled in the transformer oil tank, and an iron core and a coil of the transformer are placed in the transformer oil tank; in chinese utility model patent publication No. CN209929089U, an oil-immersed transformer is disclosed, which comprises a base, an oil tank, a hanger plate, an oil level gauge and a pressure relief valve; the bottom of the base is provided with a dovetail groove along the length direction of the base, a limiting rod is detachably arranged in the dovetail groove, the limiting rod is provided with an inverted trapezoidal structure and a square protruding part which are positioned in the dovetail groove, and a cushion pad is arranged on the lower surface of the square protruding part; the oil-immersed transformer is convenient to position and install, and meanwhile, the transverse slippage on the mounting frame can be avoided; nevertheless oil-immersed transformer can produce a large amount of heats in the use, and this utility model patent is difficult to distribute away the heat that the transformer inside produced fast in the use, generally dispels the heat through the fin that outside set up, and the radiating efficiency is low, and the radiating effect is not good, and inside heat if not dispel in time and can bring the harm to the transformer, still can bring the potential safety hazard, and this utility model patent function singleness remains to improve.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides the oil-immersed transformer for the electric power, which has the advantages that the heat dissipation efficiency and the heat dissipation effect are obviously improved by arranging various heat dissipation structures, heat dissipation in different modes can be automatically carried out according to different oil temperatures, the intelligence is realized, the energy is saved, and the using effect is good.
(II) technical scheme
The invention provides an oil-immersed transformer for electric power, which comprises a transformer box body, a heat absorbing plate, a first connecting box, a second connecting box, a first heat-conducting pipe, a spraying cylinder, a temperature sensor, a second heat-conducting pipe and a connecting pipe, wherein the heat absorbing plate is arranged on the transformer box body;
the bottom of the transformer box body is provided with a base, the top of the transformer box body is provided with a connecting frame, and the connecting frame is provided with a lightning protection assembly; a transformer body is arranged in the transformer box body, transformer oil is filled in the transformer box body, and the temperature sensor is arranged in the transformer box body; two sides of the transformer box body are provided with heat dissipation boxes, and the heat dissipation boxes are provided with heat dissipation ports; the heat absorption plate is arranged on the transformer box body and positioned in the heat dissipation box, and a heat dissipation part is arranged on the heat absorption plate; the heat dissipation box is provided with a water collection part, the water collection part is provided with a water spraying head, and the water spraying direction of the water spraying head faces the heat dissipation part; a first water delivery branch pipe and a first air supply branch pipe are arranged on the heat dissipation box, the first water delivery branch pipe is connected with the water collection part, the air blowing direction of the first air supply branch pipe faces the heat dissipation part, and control valves are respectively arranged on the first water delivery branch pipe and the first air supply branch pipe;
the first connecting box is arranged on the transformer box body, a first oil collecting ball and a second oil collecting ball are arranged in the first connecting box, the first oil collecting ball is positioned below the second oil collecting ball, and the first heat conducting pipe is communicated with the first oil collecting ball and the second oil collecting ball; an oil pump is arranged on the transformer box body, an oil pumping pipe and a first oil conveying pipe are arranged on the oil pump, the oil pumping pipe extends into the transformer box body, and the other end of the first oil conveying pipe is communicated with a first oil collecting ball; the spraying barrels are arranged in the first connecting box, the peripheral surfaces of the spraying barrels are uniformly provided with water spraying holes, and the first heat conduction pipes are distributed in an annular array around the spraying barrels in multiple groups; a second water delivery branch pipe and a second air supply branch pipe are arranged on the first connecting box, the second water delivery branch pipe is communicated with the spraying cylinder, the air blowing direction of the second air supply branch pipe faces the first heat conduction pipe, and control valves are respectively arranged on the second water delivery branch pipe and the second air supply branch pipe; a second oil delivery pipe is arranged on the second oil collecting ball, penetrates through the first connecting box and is connected with a first oil return pipe and a third oil delivery pipe, control valves are respectively arranged on the first oil return pipe and the third oil delivery pipe, and the first oil return pipe is communicated with the transformer box body;
the second connecting box is arranged on the transformer box body, a first connecting piece and a second connecting piece are arranged in the second connecting box, and the first connecting piece is positioned below the second connecting piece; a first oil collecting cavity and a first water collecting cavity are arranged in the first connecting piece, and a second oil collecting cavity and a second water collecting cavity are arranged in the second connecting piece; a plurality of groups of connecting pipes are vertically arranged, and the connecting pipes are communicated with the first water collecting cavity and the second water collecting cavity; the second heat conduction pipes are correspondingly provided with a plurality of groups and communicated with the first oil collecting cavity and the second oil collecting cavity, and the second heat conduction pipes penetrate through the connecting pipes; the first connecting piece is provided with a drain pipe which is communicated with the first water collecting cavity, and the third oil conveying pipe is communicated with the first oil collecting cavity; a third water delivery branch pipe and a second oil return pipe are arranged on the second connecting piece, the third water delivery branch pipe is communicated with the second water collecting cavity, the second oil return pipe is communicated with the second oil collecting cavity and the transformer box body, and a control valve is arranged on the third water delivery branch pipe;
the transformer box body is provided with a water pump and a blower, the water pump is provided with a water delivery main pipe, and the blower is provided with an air supply main pipe; the output end of the water delivery main pipe is connected with the first water delivery branch pipe, the second water delivery branch pipe and the third water delivery branch pipe, and the output end of the air supply main pipe is connected with the first air supply branch pipe and the second air supply branch pipe; and the transformer box body is provided with a control device, the temperature sensor is in communication connection with the control device, and the control device is in control connection with the water pump, the air blower, the oil pump and each control valve.
Preferably, the lightning protection assembly comprises an electric pole, a first lightning rod, a second lightning rod, an insulator and a fixing rod;
the fixed rod is vertically arranged on the connecting frame, and the insulator is arranged at the top end of the fixed rod; the lead pole is vertically arranged and connected with the insulator, and a grounding wire is arranged on the lead pole; the first lightning rod and the second lightning rod are respectively connected with the electricity leading rod.
Preferably, the number of the second lightning conductors is multiple groups and distributed in an annular array around the first lightning conductor.
Preferably, the transformer box body is provided with a high-voltage insulating sleeve, a low-voltage insulating sleeve, an oil level indicator and an oil conservator, and the oil conservator is connected with the inside of the transformer box body through a pipeline.
Preferably, the connecting frame is provided with a solar power generation panel and a storage battery, the input end of the storage battery is electrically connected with the solar power generation panel, and the output end of the storage battery is electrically connected with each power utilization component.
Preferably, the bottom of the heat dissipation box and the bottom of the first connecting box are respectively provided with a water outlet pipe.
Preferably, the top end inside the heat dissipation box is longitudinally provided with an air distribution plate, the output port of the first air supply branch pipe is connected with the air distribution plate, and the air exhaust direction of the air distribution plate faces downwards.
Preferably, the top end of the inside of the first connecting box is provided with an air distribution disc, the output port of the second air supply branch pipe is connected with the air distribution disc, the air exhaust direction of the air distribution disc faces downwards, and the top of the first connecting box is provided with an exhaust pipe.
Preferably, the number of the radiating pieces is multiple groups and is arranged along the transverse direction at equal intervals, the radiating pieces are aluminum sheets, and through holes are uniformly formed in the radiating pieces.
The invention provides an oil-immersed transformer for electric power and a heat dissipation method thereof, wherein the heat dissipation method comprises the following steps:
s1, setting oil temperature threshold parameters, wherein the oil temperature threshold parameters comprise a first threshold, a second threshold and a third threshold, and the first threshold is smaller than the second threshold and smaller than the third threshold;
s2, detecting the oil temperature in the transformer box body by the temperature sensor, sending detection data to the control device, and controlling related components to operate by the control device;
s3, conducting heat to the heat dissipation member by the heat absorption plate, dissipating the heat by the heat dissipation member, and blowing air towards the heat dissipation member by the first air supply branch pipe when the oil temperature is lower than a first threshold value so as to rapidly dissipate the heat on the heat dissipation member;
s4, when the oil temperature is less than or equal to the first threshold value and less than the second threshold value, on the basis of S3, the first water delivery branch pipe delivers water into the water collecting piece, and the water spray head sprays water to the heat dissipation piece and the heat absorption plate, so that the heat dissipation efficiency is improved;
s5, when the oil temperature is less than or equal to the second threshold value and less than the third threshold value, on the basis of S4, the oil pump pumps transformer oil in the transformer tank body into the first oil collecting ball, the transformer oil is uniformly dispersed into the first heat conduction pipe, the second water delivery branch pipe delivers water to the spraying cylinder, the spraying cylinder sprays water to the first heat conduction pipe, the water sprayed on the first heat conduction pipe absorbs heat and evaporates, and the second air supply branch pipe supplies air to the first connecting box, so that the evaporation efficiency is accelerated;
the transformer oil after heat absorption is gathered in the second oil collecting ball and enters the second oil conveying pipe, and finally flows back into the transformer box body through the first oil return pipe;
s6, when the third threshold value is smaller than or equal to the oil temperature, on the basis of S5, closing the control valve on the first oil return pipe, opening the control valve on the third oil delivery pipe, and enabling the transformer oil to enter the first oil collecting cavity through the third oil delivery pipe and then to be uniformly dispersed into the second heat conduction pipes; the third water delivery branch pipe delivers water to the second water collecting cavity, cooling water is uniformly dispersed into each connecting pipe to fully absorb the heat of the transformer oil in the second heat conduction pipe, and the transformer oil which absorbs heat is gathered in the second oil collecting cavity and flows back into the transformer box body through the second oil return pipe.
The technical scheme of the invention has the following beneficial technical effects:
the temperature sensor detects the oil temperature in the transformer box body and sends detection data to the control device, and the control device controls related components to operate; the heat is conducted to the heat dissipation part by the heat absorption plate, the heat is dissipated by the heat dissipation part, the first air supply branch pipe blows air towards the heat dissipation part, the first water delivery branch pipe delivers water towards the water collection part, and the water spray head sprays water towards the heat dissipation part and the heat absorption plate, so that the heat on the heat dissipation part is rapidly dissipated, and the heat dissipation efficiency is improved; the oil pump pumps out transformer oil in the transformer box body, the transformer oil is uniformly dispersed into the first heat conduction pipe, the spraying cylinder sprays water to the first heat conduction pipe, the water sprayed on the first heat conduction pipe absorbs heat to evaporate, and the second air supply branch pipe supplies air to the first connecting box so as to accelerate evaporation efficiency; the transformer oil is uniformly dispersed into each second heat conduction pipe through a third oil delivery pipe, cooling water is uniformly dispersed into each connecting pipe to fully absorb the heat of the transformer oil in the second heat conduction pipes, and the transformer oil which absorbs heat is gathered in a second oil collection cavity and flows back into the transformer box body through a second oil return pipe; by arranging various heat dissipation structures, the heat dissipation efficiency and the heat dissipation effect are obviously improved; and can come the automatic heat dissipation that carries out different modes according to different oil temperatures, it is comparatively intelligent, along with the continuous rising of oil temperature, corresponding multiple heat dissipation mode combines together, can play splendid radiating effect, and the radiating efficiency is high to help the energy can be saved, excellent in use effect.
Drawings
Fig. 1 is a schematic structural diagram of an oil-immersed transformer for electric power according to the present invention.
Fig. 2 is a front view of an oil-immersed transformer for electric power according to the present invention.
Fig. 3 is an enlarged view of a portion a of an oil-immersed transformer for electric power according to the present invention.
Fig. 4 is a schematic connection diagram (top view) of a transformer tank and a heat dissipation tank in the oil-immersed transformer for electric power according to the present invention.
Fig. 5 is a schematic structural diagram of a first connection box in the oil-immersed transformer for electric power according to the present invention.
Fig. 6 is a schematic structural diagram of a second connection box in the oil-immersed transformer for electric power according to the present invention.
Fig. 7 is a schematic structural diagram of a lightning protection assembly in an oil-immersed transformer for electric power according to the present invention.
Fig. 8 is a control block diagram of an oil-immersed transformer for electric power according to the present invention.
Reference numerals: 1. a transformer tank body; 2. a heat absorbing plate; 3. a heat sink; 4. a water pump; 5. a water delivery main pipe; 6. a heat dissipation box; 7. a first water delivery branch pipe; 8. a water collection member; 9. a sprinkler head; 10. a blower; 11. a main air supply pipe; 12. a first air supply branch pipe; 13. a heat dissipation port; 14. a first connection box; 15. a second connecting box; 16. an oil pump; 17. an oil pumping pipe; 18. a first oil delivery pipe; 19. a first oil collecting ball; 20. a second oil collecting ball; 21. a first heat conductive pipe; 22. a spray cylinder; 23. a second water delivery branch pipe; 24. a temperature sensor; 25. a second air supply branch pipe; 26. a second oil delivery pipe; 27. a first oil return pipe; 28. a third oil delivery pipe; 29. a first connecting member; 30. a first oil collecting cavity; 31. a first water collection cavity; 32. a second oil collecting cavity; 33. a second water collecting cavity; 34. a second heat conductive pipe; 35. a connecting pipe; 36. a third water delivery branch pipe; 37. a second oil return pipe; 38. a drain pipe; 39. a base; 40. a connecting frame; 41. a solar power panel; 42. a storage battery; 43. a lightning protection assembly; 44. an electricity leading pole; 45. a first lightning rod; 46. a second lightning rod; 47. a ground line; 48. an insulator; 49. fixing the rod; 50. a control device; 51. a second connecting member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 8, the oil-immersed transformer for electric power according to the present invention includes a transformer housing 1, a heat absorbing plate 2, a first connection box 14, a second connection box 15, a first heat pipe 21, a spray can 22, a temperature sensor 24, a second heat pipe 34, and a connection pipe 35;
the bottom of the transformer box body 1 is provided with a base 39, the top of the transformer box body 1 is provided with a connecting frame 40, and the connecting frame 40 is provided with a lightning protection assembly 43; a transformer body is arranged in the transformer box body 1, transformer oil is filled in the transformer box body 1, and the temperature sensor 24 is arranged in the transformer box body 1; the two sides of the transformer box body 1 are provided with heat dissipation boxes 6, and the heat dissipation boxes 6 are provided with heat dissipation ports 13; the heat absorption plate 2 is arranged on the transformer box body 1 and positioned in the heat dissipation box 6, and the heat dissipation part 3 is arranged on the heat absorption plate 2; the heat dissipation box 6 is provided with a water collection part 8, the water collection part 8 is provided with a water spraying head 9, and the water spraying direction of the water spraying head 9 faces the heat dissipation part 3; a first water delivery branch pipe 7 and a first air supply branch pipe 12 are arranged on the heat dissipation box 6, the first water delivery branch pipe 7 is connected with the water collection part 8, the air blowing direction of the first air supply branch pipe 12 faces the heat dissipation part 3, and control valves are respectively arranged on the first water delivery branch pipe 7 and the first air supply branch pipe 12;
the first connecting box 14 is arranged on the transformer box body 1, a first oil collecting ball 19 and a second oil collecting ball 20 are arranged in the first connecting box 14, the first oil collecting ball 19 is positioned below the second oil collecting ball 20, and the first heat conducting pipe 21 is communicated with the first oil collecting ball 19 and the second oil collecting ball 20; an oil pump 16 is arranged on the transformer box body 1, an oil pumping pipe 17 and a first oil conveying pipe 18 are arranged on the oil pump 16, the oil pumping pipe 17 extends into the transformer box body 1, and the other end of the first oil conveying pipe 18 is communicated with a first oil collecting ball 19; the spraying cylinders 22 are arranged in the first connecting box 14, the outer peripheral surfaces of the spraying cylinders 22 are uniformly provided with water spray holes, and the first heat conduction pipes 21 are distributed in groups in an annular array around the spraying cylinders 22; a second water delivery branch pipe 23 and a second air supply branch pipe 25 are arranged on the first connecting box 14, the second water delivery branch pipe 23 is communicated with the spraying cylinder 22, the air blowing direction of the second air supply branch pipe 25 faces the first heat conduction pipe 21, and control valves are respectively arranged on the second water delivery branch pipe 23 and the second air supply branch pipe 25; a second oil delivery pipe 26 is arranged on the second oil collecting ball 20, the second oil delivery pipe 26 penetrates through the first connecting box 14 and is connected with a first oil return pipe 27 and a third oil delivery pipe 28, control valves are respectively arranged on the first oil return pipe 27 and the third oil delivery pipe 28, and the first oil return pipe 27 is communicated with the transformer box body 1;
the second connecting box 15 is arranged on the transformer box body 1, a first connecting piece 29 and a second connecting piece 51 are arranged in the second connecting box 15, and the first connecting piece 29 is positioned below the second connecting piece 51; a first oil collecting cavity 30 and a first water collecting cavity 31 are arranged in the first connecting piece 29, and a second oil collecting cavity 32 and a second water collecting cavity 33 are arranged in the second connecting piece 51; a plurality of groups of connecting pipes 35 are vertically arranged, and the connecting pipes 35 are communicated with the first water collecting cavity 31 and the second water collecting cavity 33; a plurality of groups of second heat conduction pipes 34 are correspondingly arranged and communicated with the first oil collecting cavity 30 and the second oil collecting cavity 32, and the second heat conduction pipes 34 penetrate through the connecting pipes 35; the first connecting piece 29 is provided with a drain pipe 38, the drain pipe 38 is communicated with the first water collecting cavity 31, and the third oil pipeline 28 is communicated with the first oil collecting cavity 30; a third water delivery branch pipe 36 and a second oil return pipe 37 are arranged on the second connecting piece 51, the third water delivery branch pipe 36 is communicated with the second water collecting cavity 33, the second oil return pipe 37 is communicated with the second oil collecting cavity 32 and the transformer box body 1, and a control valve is arranged on the third water delivery branch pipe 36;
the transformer box body 1 is provided with a water pump 4 and a blower 10, the water pump 4 is provided with a water delivery main pipe 5, and the blower 10 is provided with an air supply main pipe 11; the output end of the water delivery main pipe 5 is connected with the first water delivery branch pipe 7, the second water delivery branch pipe 23 and the third water delivery branch pipe 36, and the output end of the air supply main pipe 11 is connected with the first air supply branch pipe 12 and the second air supply branch pipe 25; the transformer box body 1 is provided with a control device 50, the temperature sensor 24 is in communication connection with the control device 50, and the control device 50 is in control connection with the water pump 4, the blower 10, the oil pump 16 and various control valves.
In an alternative embodiment, the lightning conductor assembly 43 comprises an electrical power lead rod 44, a first lightning conductor 45, a second lightning conductor 46, an insulator 48 and a fixing rod 49; the fixing rod 49 is vertically arranged on the connecting frame 40, and the insulator 48 is arranged at the top end of the fixing rod 49; the lead rod 44 is vertically arranged and connected with the insulator 48, and a grounding wire 47 is arranged on the lead rod 44; the first lightning rod 45 and the second lightning rod 46 are respectively connected with the power conducting rod 44; first lightning rod 45 and second lightning rod 46 play the effect of drawing thunder, draw electric pole 44 to play the effect of deriving the thunder, insulator 48 plays insulating effect, earth connection 47 is the leading-in ground of thunder on with drawing electric pole 44, plays the effect of lightning-arrest, helps improving the barrier propterty to the transformer, the figure of second lightning rod 46 is the multiunit and is annular array distribution around first lightning rod 45, helps improving lightning-arrest effect.
In an alternative embodiment, the transformer tank 1 is provided with a high-voltage insulating sleeve, a low-voltage insulating sleeve, an oil level indicator and an oil conservator, and the oil conservator is connected with the inside of the transformer tank 1 through a pipeline.
In an alternative embodiment, the connecting frame 40 is provided with a solar power generation panel 41 and a storage battery 42, an input end of the storage battery 42 is electrically connected with the solar power generation panel 41, and an output end of the storage battery 42 is electrically connected with each electric component. In operation, the solar panel 41 converts solar energy into electric energy, and the storage battery 42 stores the electric energy and supplies the electric energy to the water pump 4, the blower 10 and the oil pump 16, thereby achieving the effects of energy conservation and environmental protection.
In an alternative embodiment, the bottom of the heat dissipation box 6 and the first connection box 14 are respectively provided with a water outlet pipe, and water collected in the heat dissipation box 6 and the first connection box 14 is discharged along the water outlet pipe.
In an alternative embodiment, an air distribution plate is longitudinally arranged at the top end of the interior of the heat dissipation box 6, the output port of the first air supply branch pipe 12 is connected with the air distribution plate, the air exhaust direction of the air distribution plate faces downwards, a cavity is arranged inside the air distribution plate, and exhaust holes are uniformly formed in the bottom of the air distribution plate, so that air can be uniformly blown to the heat dissipation member 3, and the heat dissipation effect is improved.
In an alternative embodiment, the top end of the inside of the first connection box 14 is provided with an air distribution plate, the output port of the second air supply branch pipe 25 is connected with the air distribution plate, the air exhaust direction of the air distribution plate faces downward, the top of the first connection box 14 is provided with an air exhaust pipe, the inside of the air distribution plate is provided with a cavity, the bottom of the air distribution plate is uniformly provided with air exhaust holes, air can be uniformly blown to the first heat conduction pipe 21, and the heat dissipation effect is improved.
In an optional embodiment, the number of the heat dissipation members 3 is multiple and the heat dissipation members 3 are arranged at equal intervals in the transverse direction, the heat dissipation members 3 are aluminum sheets, and the heat dissipation members 3 are uniformly provided with through holes, so that the heat dissipation effect is remarkably improved.
In the invention, the temperature sensor 24 detects the oil temperature in the transformer tank 1 and sends the detection data to the control device 50, and the control device 50 controls the relevant parts to operate; the water pump 4 conveys cooling water to the first water conveying branch pipe 7, the second water conveying branch pipe 23 and the third water conveying branch pipe 36 through the water conveying main pipe 5, and the air blower 10 blows air into the first air supply branch pipe 12 and the second air supply branch pipe 25 through the air supply main pipe 11; the heat absorption plate 2 conducts heat to the heat dissipation part 3, the heat dissipation part 3 dissipates the heat, the first air supply branch pipe 12 blows air towards the heat dissipation part 3, the first water delivery branch pipe 7 delivers water towards the water collection part 8, and the water spraying head 9 sprays water towards the heat dissipation part 3 and the heat absorption plate 2, so that the heat on the heat dissipation part 3 is dissipated rapidly, and the heat dissipation efficiency is improved;
the oil pump 16 pumps the transformer oil in the transformer tank 1 into the first oil collecting ball 19, the transformer oil is uniformly dispersed into the first heat conduction pipe 21, the second water delivery branch pipe 23 delivers water into the spraying cylinder 22, the spraying cylinder 22 sprays water to the first heat conduction pipe 21, the water sprayed on the first heat conduction pipe 21 absorbs heat to evaporate, and the second air supply branch pipe 25 supplies air to the first connecting box 14 to accelerate the evaporation efficiency; the transformer oil which absorbs heat is gathered in the second oil collecting ball 20 and enters the second oil conveying pipe 26, and finally flows back into the transformer tank 1 through the first oil return pipe 27; when the control valve on the first oil return pipe 27 is closed and the control valve on the third oil delivery pipe 28 is opened, the transformer oil enters the first oil collecting cavity 30 through the third oil delivery pipe 28 and then is uniformly dispersed into the second heat conduction pipes 34; the third water delivery branch pipe 36 delivers water into the second water collection cavity 33, cooling water is uniformly dispersed into each connecting pipe 35 to fully absorb the heat of the transformer oil in the second heat conduction pipe 34, and the transformer oil which absorbs heat is gathered in the second oil collection cavity 32 and flows back into the transformer tank 1 through the second oil return pipe 37; through setting up multiple heat radiation structure and combining it, showing radiating efficiency and radiating effect.
The invention provides an oil-immersed transformer for electric power and a heat dissipation method thereof, wherein the heat dissipation method comprises the following steps:
s1, setting oil temperature threshold parameters, wherein the oil temperature threshold parameters comprise a first threshold, a second threshold and a third threshold, and the first threshold is smaller than the second threshold and smaller than the third threshold;
s2, the temperature sensor 24 detects the oil temperature in the transformer tank 1 and sends the detection data to the control device 50, and the control device 50 controls the relevant parts to operate;
s3, conducting heat to the heat dissipation member 3 through the heat absorption plate 2, dissipating the heat out through the heat dissipation member 3, and blowing air towards the heat dissipation member 3 through the first air supply branch pipe 12 when the oil temperature is lower than a first threshold value so as to rapidly dissipate the heat out of the heat dissipation member 3;
s4, when the oil temperature is less than or equal to the first threshold value and less than the second threshold value, on the basis of S3, the first water delivery branch pipe 7 delivers water into the water collection piece 8, and the water spray head 9 sprays water to the heat dissipation piece 3 and the heat absorption plate 2, so that the heat dissipation efficiency is improved;
s5, when the oil temperature is less than or equal to the second threshold value and less than the third threshold value, on the basis of S4, the oil pump 16 pumps the transformer oil in the transformer tank 1 to the first oil collecting ball 19, the transformer oil is uniformly dispersed into the first heat conduction pipe 21, the second water delivery branch pipe 23 delivers water to the spray cylinder 22, the spray cylinder 22 sprays water to the first heat conduction pipe 21, the water sprayed on the first heat conduction pipe 21 absorbs heat and evaporates, and the second air supply branch pipe 25 supplies air to the first connection box 14 to accelerate the evaporation efficiency;
the transformer oil which absorbs heat is gathered in the second oil collecting ball 20 and enters the second oil conveying pipe 26, and finally flows back into the transformer tank 1 through the first oil return pipe 27;
s6, when the third threshold value is less than or equal to the oil temperature, on the basis of S5, closing the control valve on the first oil return pipe 27, opening the control valve on the third oil delivery pipe 28, and allowing the transformer oil to enter the first oil collecting cavity 30 through the third oil delivery pipe 28 and then to be uniformly dispersed into the second heat conduction pipes 34; the third water delivery branch pipe 36 delivers water into the second water collection chamber 33, and the cooling water is uniformly dispersed into each connecting pipe 35 to fully absorb the heat of the transformer oil in the second heat conduction pipe 34, and the transformer oil which has absorbed heat is collected in the second oil collection chamber 32 and flows back into the transformer tank 1 through the second oil return pipe 37.
According to the invention, heat dissipation in different modes is automatically carried out according to different oil temperatures, the intelligent heat dissipation device is more intelligent, and along with the continuous rise of the oil temperatures, the corresponding multiple heat dissipation modes are combined, so that the excellent heat dissipation effect can be achieved, the heat dissipation efficiency is high, the energy can be saved, and the use effect is good.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. The oil-immersed transformer for electric power is characterized by comprising a transformer box body (1), a heat absorbing plate (2), a first connecting box (14), a second connecting box (15), a first heat-conducting pipe (21), a spraying cylinder (22), a temperature sensor (24), a second heat-conducting pipe (34) and a connecting pipe (35);
a base (39) is arranged at the bottom of the transformer box body (1), a connecting frame (40) is arranged at the top of the transformer box body (1), and a lightning protection assembly (43) is arranged on the connecting frame (40); a transformer body is arranged in the transformer box body (1), transformer oil is filled in the transformer box body (1), and the temperature sensor (24) is arranged in the transformer box body (1); the two sides of the transformer box body (1) are provided with heat dissipation boxes (6), and the heat dissipation boxes (6) are provided with heat dissipation ports (13); the heat absorption plate (2) is arranged on the transformer box body (1) and is positioned in the heat dissipation box (6), and the heat dissipation part (3) is arranged on the heat absorption plate (2); a water collecting piece (8) is arranged on the heat dissipation box (6), a water spraying head (9) is arranged on the water collecting piece (8), and the water spraying direction of the water spraying head (9) faces the heat dissipation piece (3); a first water delivery branch pipe (7) and a first air supply branch pipe (12) are arranged on the heat dissipation box (6), the first water delivery branch pipe (7) is connected with the water collection part (8), the air blowing direction of the first air supply branch pipe (12) faces the heat dissipation part (3), and control valves are respectively arranged on the first water delivery branch pipe (7) and the first air supply branch pipe (12);
the first connecting box (14) is arranged on the transformer box body (1), a first oil collecting ball (19) and a second oil collecting ball (20) are arranged in the first connecting box (14), the first oil collecting ball (19) is positioned below the second oil collecting ball (20), and the first heat conducting pipe (21) is communicated with the first oil collecting ball (19) and the second oil collecting ball (20); an oil pump (16) is arranged on the transformer box body (1), an oil pumping pipe (17) and a first oil conveying pipe (18) are arranged on the oil pump (16), the oil pumping pipe (17) extends into the transformer box body (1), and the other end of the first oil conveying pipe (18) is communicated with a first oil collecting ball (19); the spraying barrels (22) are arranged in the first connecting box (14), water spraying holes are uniformly formed in the peripheral surfaces of the spraying barrels (22), and the first heat conduction pipes (21) are distributed in an annular array mode around the spraying barrels (22) in a plurality of groups; a second water delivery branch pipe (23) and a second air supply branch pipe (25) are arranged on the first connecting box (14), the second water delivery branch pipe (23) is communicated with the spraying cylinder (22), the air blowing direction of the second air supply branch pipe (25) faces the first heat conduction pipe (21), and control valves are respectively arranged on the second water delivery branch pipe (23) and the second air supply branch pipe (25); a second oil delivery pipe (26) is arranged on the second oil collecting ball (20), the second oil delivery pipe (26) penetrates through the first connecting box (14) and is connected with a first oil return pipe (27) and a third oil delivery pipe (28), control valves are respectively arranged on the first oil return pipe (27) and the third oil delivery pipe (28), and the first oil return pipe (27) is communicated with the transformer box body (1);
the second connecting box (15) is arranged on the transformer box body (1), a first connecting piece (29) and a second connecting piece (51) are arranged in the second connecting box (15), and the first connecting piece (29) is positioned below the second connecting piece (51); a first oil collecting cavity (30) and a first water collecting cavity (31) are arranged in the first connecting piece (29), and a second oil collecting cavity (32) and a second water collecting cavity (33) are arranged in the second connecting piece (51); a plurality of groups of connecting pipes (35) are vertically arranged, and the connecting pipes (35) are communicated with the first water collecting cavity (31) and the second water collecting cavity (33); a plurality of groups of second heat conduction pipes (34) are correspondingly arranged and communicated with the first oil collecting cavity (30) and the second oil collecting cavity (32), and the second heat conduction pipes (34) penetrate through the connecting pipes (35); a drain pipe (38) is arranged on the first connecting piece (29), the drain pipe (38) is communicated with the first water collecting cavity (31), and the third oil conveying pipe (28) is communicated with the first oil collecting cavity (30); a third water delivery branch pipe (36) and a second oil return pipe (37) are arranged on the second connecting piece (51), the third water delivery branch pipe (36) is communicated with the second water collecting cavity (33), the second oil return pipe (37) is communicated with the second oil collecting cavity (32) and the transformer box body (1), and a control valve is arranged on the third water delivery branch pipe (36);
a water pump (4) and a blower (10) are arranged on the transformer box body (1), a water delivery main pipe (5) is arranged on the water pump (4), and an air supply main pipe (11) is arranged on the blower (10); the output end of the water delivery main pipe (5) is connected with the first water delivery branch pipe (7), the second water delivery branch pipe (23) and the third water delivery branch pipe (36), and the output end of the air supply main pipe (11) is connected with the first air supply branch pipe (12) and the second air supply branch pipe (25); the transformer tank body (1) is provided with a control device (50), the temperature sensor (24) is in communication connection with the control device (50), and the control device (50) is in control connection with the water pump (4), the air blower (10), the oil pump (16) and various control valves.
2. An oil-immersed transformer for electric power as claimed in claim 1, characterized in that the lightning conductor assembly (43) comprises an electric power lead (44), a first lightning conductor (45), a second lightning conductor (46), an insulator (48) and a fixing rod (49);
the fixing rod (49) is vertically arranged on the connecting frame (40), and the insulator (48) is arranged at the top end of the fixing rod (49); the power lead rod (44) is vertically arranged and connected with the insulator (48), and a grounding wire (47) is arranged on the power lead rod (44); the first lightning rod (45) and the second lightning rod (46) are respectively connected with the electric pole (44).
3. An oil-immersed transformer for electric power applications according to claim 2, characterized in that the number of second lightning conductors (46) is several and distributed in an annular array around the first lightning conductor (45).
4. An oil-immersed transformer for electric power as claimed in claim 1, wherein the transformer tank (1) is provided with a high-voltage insulating sleeve, a low-voltage insulating sleeve, an oil level gauge and an oil conservator, and the oil conservator is connected with the inside of the transformer tank (1) through a pipeline.
5. The oil-immersed transformer for electric power according to claim 1, wherein the connecting frame (40) is provided with a solar power generation panel (41) and a storage battery (42), an input end of the storage battery (42) is electrically connected with the solar power generation panel (41), and an output end of the storage battery (42) is electrically connected with each electric component.
6. An oil-immersed transformer for electric power as claimed in claim 1, wherein the bottom of the heat dissipation tank (6) and the first connection tank (14) are provided with water outlet pipes, respectively.
7. The oil-immersed transformer for electric power as claimed in claim 1, wherein an air distribution plate is provided in the longitudinal direction of the top end of the inside of the heat dissipating box (6), and the outlet of the first air supply branch pipe (12) is connected to the air distribution plate with the air discharge direction of the air distribution plate directed downward.
8. The oil-immersed transformer for electric power use according to claim 1, wherein an air distribution plate is provided at the top of the inside of the first connection box (14), an outlet of the second air supply branch pipe (25) is connected to the air distribution plate, an air discharge direction of the air distribution plate is directed downward, and an air discharge pipe is provided at the top of the first connection box (14).
9. An oil-immersed transformer for electric power as claimed in claim 1, wherein the number of the heat dissipating members (3) is plural and arranged at equal intervals in the lateral direction, the heat dissipating members (3) are aluminum sheets, and the heat dissipating members (3) are uniformly provided with through holes.
10. An oil-immersed transformer for electric power according to any of claims 1 to 9, further providing a method for dissipating heat therefrom, comprising the steps of:
s1, setting oil temperature threshold parameters, wherein the oil temperature threshold parameters comprise a first threshold, a second threshold and a third threshold, and the first threshold is smaller than the second threshold and smaller than the third threshold;
s2, the temperature sensor (24) detects the oil temperature in the transformer box body (1), and sends detection data to the control device (50), and the control device (50) controls related components to operate;
s3, conducting heat to the heat dissipation member (3) through the heat absorption plate (2), dissipating the heat out through the heat dissipation member (3), and blowing air towards the heat dissipation member (3) through the first air supply branch pipe (12) when the oil temperature is lower than a first threshold value so as to rapidly dissipate the heat out of the heat dissipation member (3);
s4, when the oil temperature is less than or equal to the first threshold value and less than the second threshold value, on the basis of S3, the first water delivery branch pipe (7) delivers water into the water collecting piece (8), and the water spray head (9) sprays water to the heat dissipation piece (3) and the heat absorption plate (2), so that the heat dissipation efficiency is improved;
s5, when the oil temperature is less than or equal to the second threshold value and less than the third threshold value, on the basis of S4, the oil pump (16) pumps the transformer oil in the transformer tank body (1) into the first oil collecting ball (19), the transformer oil is uniformly dispersed into the first heat conduction pipe (21), the second water delivery branch pipe (23) delivers water into the spray cylinder (22), the spray cylinder (22) sprays water to the first heat conduction pipe (21), the water sprayed on the first heat conduction pipe (21) absorbs heat and evaporates, and the second air supply branch pipe (25) supplies air to the first connecting tank (14) so as to accelerate the evaporation efficiency;
the transformer oil which absorbs heat is gathered in the second oil collecting ball (20) and enters the second oil conveying pipe (26), and finally flows back into the transformer box body (1) through the first oil return pipe (27);
s6, when the third threshold value is less than or equal to the oil temperature, on the basis of S5, closing the control valve on the first oil return pipe (27), opening the control valve on the third oil delivery pipe (28), and enabling the transformer oil to enter the first oil collecting cavity (30) through the third oil delivery pipe (28) and then to be uniformly dispersed into the second heat conduction pipes (34); the third water delivery branch pipe (36) delivers water to the second water collecting cavity (33), cooling water is uniformly dispersed into each connecting pipe (35) to fully absorb the heat of the transformer oil in the second heat conduction pipe (34), and the transformer oil which is subjected to heat absorption is gathered in the second oil collecting cavity (32) and flows back into the transformer box body (1) through the second oil return pipe (37).
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| CN202010982665.2A CN111899969B (en) | 2020-09-17 | 2020-09-17 | Oil-immersed transformer for electric power |
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| CN202010982665.2A CN111899969B (en) | 2020-09-17 | 2020-09-17 | Oil-immersed transformer for electric power |
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| CN111899969B true CN111899969B (en) | 2021-12-21 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112530666B (en) * | 2020-11-16 | 2021-10-19 | 浙江德通变压器有限公司 | High heat dissipation dry-type transformer |
| CN113436833B (en) * | 2021-06-07 | 2022-05-27 | 东莞市瑞冠电子有限公司 | High-temperature sensing type circulating water-cooled transformer |
| KR102490352B1 (en) * | 2022-05-27 | 2023-01-26 | 더원엔지니어링 주식회사 | Transformer for substations of 154KV or higher that enables efficient heat dissipation |
| KR102490351B1 (en) * | 2022-05-27 | 2023-01-20 | 더원엔지니어링 주식회사 | Transformer with cooling function for substations of 154KV or higher |
| CN115249562B (en) * | 2022-09-22 | 2022-12-09 | 保定市龙跃电力器材制造有限公司 | Heat-resistant high-grade energy-saving transformer |
| CN116741502B (en) * | 2023-08-15 | 2023-10-20 | 四川蜀道电气化建设有限公司 | Transformer heat dissipation system and method |
| CN117116613B (en) * | 2023-10-19 | 2024-01-09 | 河南鼎冠电力科技有限公司 | Large-capacity rectifier transformer cooling device adopting finned heat dissipation cooling |
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| CN203910439U (en) * | 2014-05-28 | 2014-10-29 | 平顶山电力设计院有限公司 | Transformer oil tank facilitating water draining, cooling and temperature decreasing |
| CN104298283A (en) * | 2014-08-28 | 2015-01-21 | 宁夏共享铸钢有限公司 | Method for preventing cooling water of oil-water cooler from entering circulation oil pipe of transformer |
| CN207704985U (en) * | 2017-12-30 | 2018-08-07 | 聊城鑫大变压器有限公司 | A kind of transformer cooling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203910439U (en) * | 2014-05-28 | 2014-10-29 | 平顶山电力设计院有限公司 | Transformer oil tank facilitating water draining, cooling and temperature decreasing |
| CN104298283A (en) * | 2014-08-28 | 2015-01-21 | 宁夏共享铸钢有限公司 | Method for preventing cooling water of oil-water cooler from entering circulation oil pipe of transformer |
| CN207704985U (en) * | 2017-12-30 | 2018-08-07 | 聊城鑫大变压器有限公司 | A kind of transformer cooling device |
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