CN109524204B - Amorphous alloy dry-type transformer with thermal expansion bubble protection mechanism - Google Patents
Amorphous alloy dry-type transformer with thermal expansion bubble protection mechanism Download PDFInfo
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- CN109524204B CN109524204B CN201811571580.4A CN201811571580A CN109524204B CN 109524204 B CN109524204 B CN 109524204B CN 201811571580 A CN201811571580 A CN 201811571580A CN 109524204 B CN109524204 B CN 109524204B
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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
- H01F27/40—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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
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Abstract
The invention discloses an amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism, which belongs to the field of dry-type transformer equipment, and comprises a transformer base frame, wherein three amorphous alloy transformer monomers are arranged in the transformer base frame, so that a normally loose porous structure can be utilized, noise reduction and heat insulation of a transformer body are facilitated, after the temperature is increased, a polyimide resin gas storage bubble layer structure is heated and expanded, the contact area with the outside is increased, the heat dissipation rate is accelerated, meanwhile, the color of the expanded polyimide resin gas storage bubble layer is changed, a maintainer is reminded to carry out maintenance, after an open fire contacts the outer layer structure, a carbon dioxide gas bag is burst, the combustion of the open fire is slowed down, the normal operation of the transformer is protected, the self-rescue function of the abnormal transformer is enhanced, and the safe operation of the transformer is ensured to a great extent, the service life of the main structure of the transformer is prolonged.
Description
Technical Field
The invention relates to the field of dry-type transformer equipment, in particular to an amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism.
Background
Amorphous Metal transformers (amorpus Metal transformers) are a low loss, energy efficient power Transformer. The transformer uses iron-based amorphous metal as an iron core, and because the material has no long-range ordered structure, the material is easier to magnetize and demagnetize than common magnetic materials. Therefore, the iron loss (i.e., no-load loss) of the amorphous alloy transformer is 70-80% lower than that of the conventional transformer using silicon steel as the iron core. Because the loss is reduced, the power generation requirement is also reduced, and the emission of greenhouse gases such as carbon dioxide is also reduced correspondingly. Amorphous alloy transformers are used in large-scale developing countries such as china and india in a large scale, based on energy supply and environmental protection factors. The current power consumption of the China and the seal country is used for calculation, if the amorphous alloy transformer is adopted on the whole distribution network, the power generation amount of 25-30TWh can be saved every year, and the emission of 2-3 million tons of carbon dioxide can be reduced.
The most widely used power transformer at present is a dry-type transformer, which is characterized by strong thermal shock bearing capacity, strong overload capacity, flame retardancy, high fireproof performance, low loss and small local discharge capacity, and meanwhile, the dry-type power transformer has small environmental pollution during working, the cooling mode after the heating of the existing dry-type transformer is generally natural cooling by relying on air convection or increased fan cooling, because of the limitation of the cooling mode, the dry-type transformer is mainly used for small-capacity transformers such as local lighting, high-speed charging stations for electricity, high-rise buildings, electronic circuits and the like, and simultaneously, along with the insulation aging of the iron core of the transformer or the damage of a clamping bolt sleeve, the iron core can generate great eddy current to cause the long-term heating of the iron core to cause insulation aging, long-term overload operation to cause abnormal heating of a coil, and technicians can not directly check and know the abnormality of the iron core, therefore, the internal iron core of the transformer is easy to have certain potential safety hazard, and meanwhile, although the dry type transformer has high fireproof performance, open fire combustion still occurs when the temperature rises to a certain height, so that the whole transformation mechanism is seriously damaged.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism, which can realize the utilization of a porous structure loosened in a normal state, is favorable for improving the noise reduction and the heat insulation of a transformer body, and after the temperature is increased, the polyimide resin gas storage bubble layer structure expands when heated, increases the contact area with the outside, accelerates the heat dissipation rate, meanwhile, the color of the expanded polyimide gas storage bubble layer changes, so that maintenance personnel is reminded of maintaining abnormal temperature, maintenance is carried out, if maintenance is not carried out in time, the temperature reaches the ignition point, and after open fire contacts the outer layer structure, the carbon dioxide air bag is burst, blows off oxygen of combustion-supporting substances, slows down the burning of open fire, protects the normal operation of the transformer, the self-rescue function of the transformer after abnormity occurs is enhanced, the safe operation of the transformer is ensured to a great extent, and the service life of the main structure of the transformer is prolonged.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism comprises a transformer base frame, wherein three amorphous alloy transformer monomers are arranged in the transformer base frame, the upper ends and the lower ends of the three amorphous alloy transformer monomers are respectively and fixedly connected with the inner wall of the transformer base frame, the upper ends of the amorphous alloy transformer monomers are respectively and fixedly connected with a high-voltage terminal, the lower end of the transformer base frame is fixedly connected with two cross beam bases, the outer layer of each amorphous alloy transformer monomer is fixedly connected with a plurality of inclined heat conduction expansion protection mechanisms, each inclined heat conduction expansion protection mechanism comprises an air duct air mixing upper flat plate and a windward side lower bottom plate, the air duct air mixing upper flat plate and the windward side lower bottom plate are respectively and fixedly connected with the outer wall of each amorphous alloy transformer monomer, the lower end of the air duct air mixing upper flat plate is fixedly connected with a plurality of heat dispersion conduction, the upper end of the heated conduction rod is fixedly connected with a uniform heating horizontal circular plate, the upper end of the uniform heating horizontal circular plate is fixedly connected with a polyimide gas storage bubble layer, can realize the loosening and porous structure under the normal state, is beneficial to improving the noise reduction and the heat insulation of the transformer body, and after the temperature is increased, the polyimide resin gas storage bubble layer structure expands when heated, increases the contact area with the outside, accelerates the heat dissipation rate, meanwhile, the color of the expanded polyimide gas storage bubble layer changes, so that maintenance personnel is reminded of maintaining abnormal temperature, maintenance is carried out, if maintenance is not carried out in time, the temperature reaches the ignition point, and after open fire contacts the outer layer structure, the carbon dioxide air bag is burst, blows off oxygen of combustion-supporting substances, slows down the burning of open fire, protects the normal operation of the transformer, the self-rescue function of the transformer after abnormity occurs is enhanced, the safe operation of the transformer is ensured to a great extent, and the service life of the main structure of the transformer is prolonged.
Furthermore, a plurality of natural air inlet holes are drilled in the air channel air mixing upper flat plate and are all located on the right side of the corresponding heat dispersing and conducting rod, and natural air quantity entering the inclined heat conducting expansion protection mechanism is increased conveniently through the natural air inlet holes additionally formed in the air channel air mixing upper flat plate.
Furthermore, a plurality of windward inclined guide plates are fixedly connected to the air channel air mixing upper flat plate, the windward inclined guide plates are located on the left sides of the corresponding natural wind inlet holes, and the amount of natural wind entering the inclined heat conduction expansion protection mechanism is increased through the windward inclined guide plates additionally arranged on the air channel air mixing upper flat plate, so that the cooling effect of natural wind on the amorphous alloy transformer is accelerated.
Further, the oblique baffle of windward is kept away from wind channel and is mixed gas and go up dull and stereotyped one end fixedly connected with wind pressure direction arc piece, wind pressure direction arc piece is to keeping away from heat conduction pole lopsidedness, the oblique baffle of windward is the arc setting with wind pressure direction arc piece junction, is convenient for alleviate natural wind get into oblique heat conduction under the direction of wind pressure direction arc piece and rises the pressure to wind pressure direction arc piece when protection mechanism in to prolong the life of wind pressure direction arc piece.
Furthermore, a plurality of embedded heat conducting grooves are formed in the lower bottom plate of the windward side in a chiseled mode, an inner thorn heat absorbing rod is arranged in each embedded heat conducting groove and fixedly connected with the inner wall of each embedded heat conducting groove, the inner thorn heat absorbing rod is far away from one end of the inclined heat conducting expansion protection mechanism and fixedly connected with a heat absorbing flat plate, the heat absorbing flat plate is tightly attached to the inner wall of the amorphous alloy transformer unit, and heat inside the amorphous alloy transformer unit can be rapidly conducted to the lower bottom plate of the windward side conveniently.
Furthermore, a heat insulation and heat transfer frame is arranged between the air duct mixed gas upper flat plate and the windward side lower bottom plate, a plurality of heat insulation and heat transfer holes are drilled in the heat insulation and heat transfer frame, the heat insulation and heat transfer holes are uniformly distributed on the heat insulation and heat transfer frame and correspond to the heated conduction rods, and the heat insulation and heat transfer frame is additionally arranged between the air duct mixed gas upper flat plate and the windward side lower bottom plate, so that gas heated by the air duct mixed gas upper flat plate and gas heated by the windward side lower bottom plate are conveniently separated and respectively cooled.
Furthermore, carbon dioxide gas and various inert gases are filled in the polyimide resin gas bubble layer, the carbon dioxide and the various inert gases are uniformly mixed in the polyimide resin gas bubble layer, the polyimide resin gas bubble layer is convenient to expand after being heated through the carbon dioxide and the inert gases filled in the polyimide resin gas bubble layer, the contact area between the polyimide resin gas bubble layer and the external environment is increased, the cooling rate is accelerated, and after the polyimide resin gas bubble layer expands and explodes, the oxygen of combustion-supporting gas is discharged through the diffused carbon dioxide and the inert gases, and the open fire combustion is slowed down.
Furthermore, the inert gases mainly comprise helium and argon, so that the reaction of the heated gases at high temperature is reduced.
Furthermore, a plurality of hard heat conduction seta are fixedly connected to the heat conduction rod, a plurality of curved floss filaments are fixedly connected to the hard heat conduction seta, the hard heat conduction seta are densely distributed, the surface areas of the heat conduction rod and the hard heat conduction seta are conveniently increased, meanwhile, a loose porous sponge-like structure is manufactured, a large number of air gaps are formed in the inclined heat conduction expansion protection mechanism, and therefore noise in the working process of the amorphous alloy transformer monomer is reduced.
Furthermore, the interior of the natural wind inlet hole is provided with a spiral wind guide groove, so that wind direction turbulence of natural wind entering the inclined heat conduction expansion protection mechanism is reduced.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme can realize utilizing loose porous type structure under the normal condition, do benefit to falling of promoting transformer body and fall and separate the temperature, after the temperature risees, polyimidium fat gas storage bubble layer structure is heated the inflation, increase and external area of contact, accelerate the rate of heat dissipation, the colour changes after the polyimidium fat gas storage bubble layer inflation simultaneously, remind maintainer, the temperature is unusual, overhaul, if not in time, the temperature reaches the ignition point, after naked light contacts outer layer structure, the carbon dioxide gasbag explodes, blow off combustion-supporting thing oxygen, slow down the burning of naked light, when protecting the normal operating of transformer, strengthen the function of saving oneself after the transformer appearance is unusual, to a great extent guarantees the safe operation of transformer, the life of extension transformer major structure.
(2) The air duct mixed air upper flat plate is provided with a plurality of natural air inlet holes, the natural air inlet holes are all positioned on the right side of the corresponding heat dispersing and conducting rod, and the natural air quantity entering the inclined heat conducting expansion protection mechanism is increased conveniently through the natural air inlet holes additionally arranged on the air duct mixed air upper flat plate.
(3) A plurality of windward inclined guide plates are fixedly connected to the air channel gas mixing upper flat plate and are all located on the left side of corresponding natural wind inlet holes, and the amount of natural wind entering the inclined heat conduction expansion protection mechanism is increased conveniently through the windward inclined guide plates additionally arranged on the air channel gas mixing upper flat plate, so that the cooling effect of natural wind on the amorphous alloy transformer is accelerated.
(4) The windward inclined guide plate is far away from the wind channel gas mixing upper flat plate one end fixedly connected with wind pressure guide arc piece, the wind pressure guide arc piece inclines towards one side of the heat dispersion guide rod, the windward inclined guide plate and the wind pressure guide arc piece are in arc-shaped arrangement, and the pressure of natural wind on the wind pressure guide arc piece when entering into the inclined heat conduction expansion protection mechanism under the guide of the wind pressure guide arc piece is convenient to lighten, so that the service life of the wind pressure guide arc piece is prolonged.
(5) The heat absorption plate is closely attached to the inner wall of the amorphous alloy transformer monomer, and heat inside the amorphous alloy transformer monomer is rapidly conducted to the windward lower base plate.
(6) The hot layer separating frame is arranged between the air channel mixed air upper flat plate and the windward side lower bottom plate, a plurality of heat insulation and heat transfer holes are drilled on the hot layer separating frame, the heat insulation and heat transfer holes are uniformly distributed on the hot layer separating frame and are arranged corresponding to the heated conducting rods, and the hot layer separating frame is additionally arranged between the air channel mixed air upper flat plate and the windward side lower bottom plate, so that the gas heated by the air channel mixed air upper flat plate and the gas heated by the windward side lower bottom plate can be separated conveniently and respectively cooled.
(7) The carbon dioxide gas and various inert gases are filled in the polyimide resin gas bubble layer, the carbon dioxide and the various inert gases are uniformly mixed in the polyimide resin gas bubble layer, the polyimide resin gas bubble layer is convenient to expand after being heated through the carbon dioxide and the inert gases filled in the polyimide resin gas bubble layer, the contact area between the polyimide resin gas bubble layer and the external environment is increased, the cooling rate is accelerated, and after the polyimide resin gas bubble layer expands and explodes, the oxygen of combustion-supporting gas is discharged through the diffused carbon dioxide and the inert gases, and the burning of open fire is slowed down.
(8) The plurality of inert gases mainly comprise helium and argon, so that the reaction of the heated gases at high temperature is reduced.
(9) A plurality of hard heat conduction seta are fixedly connected to the heat conduction rod, a plurality of curved floss filaments are fixedly connected to the hard heat conduction seta, the hard heat conduction seta are densely distributed on the hard heat conduction seta, the surface areas of the heat conduction rod and the hard heat conduction seta are conveniently increased, meanwhile, a loose porous sponge-like structure is manufactured, a large number of air gaps are formed in the inclined heat conduction expansion protection mechanism, and therefore noise in the working process of the amorphous alloy transformer monomer is reduced.
(10) The spiral air guide groove is arranged in the natural air inlet hole, so that the wind direction turbulence of natural air entering the inclined heat conduction expansion protection mechanism is reduced conveniently.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic structural view of the inclined heat-conducting expansion protection mechanism in a partially normal state according to the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
fig. 4 is a schematic structural diagram of the oblique heat conduction expansion protection mechanism according to the present invention in an abnormal heating state.
The reference numbers in the figures illustrate:
the device comprises a transformer base frame 1, an amorphous alloy transformer monomer 2, a crossbeam base 3, a high-voltage terminal 4, an oblique heat conduction expansion protection mechanism 5, an air duct gas mixing upper flat plate 6, a windward lower bottom plate 7, a heated conduction rod 8, a hot layer separation frame 9, a soaking horizontal circular plate 10, a polyurethane gas storage bubble layer 11, a natural wind inlet hole 12, a windward oblique guide plate 13, a wind pressure guide arc-shaped sheet 14, a heat-dispersing conduction rod 15, hard heat conduction seta 16 and a curved fuzz filament 17.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements.
Example 1:
referring to fig. 1, an amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism includes a transformer pedestal 1, three amorphous alloy transformer units 2 are arranged in the transformer pedestal 1, the upper and lower ends of the three amorphous alloy transformer units 2 are respectively fixedly connected with the inner wall of the transformer pedestal 1, the upper ends of the amorphous alloy transformer units 2 are fixedly connected with high-voltage terminals 4, the lower end of the transformer pedestal 1 is fixedly connected with two beam bases 3, and the outer layer of the amorphous alloy transformer units 2 is fixedly connected with a plurality of inclined heat conduction expansion protection mechanisms 5.
Referring to fig. 2, the oblique heat-conducting expansion protection mechanism 5 includes an air-duct air-mixing upper flat plate 6 and a windward lower flat plate 7, the air-duct air-mixing upper flat plate 6 and the windward lower flat plate 7 are both fixedly connected to the outer wall of the amorphous alloy transformer unit 2, the lower end of the air-duct air-mixing upper flat plate 6 is fixedly connected to a plurality of heat-dispersing rods 15, the upper end of the windward lower flat plate 7 is fixedly connected to a plurality of heated conducting rods 8, the upper end of the heated conducting rods 8 is fixedly connected to a uniform heat horizontal circular plate 10, the upper end of the uniform heat horizontal circular plate 10 is fixedly connected to a polyimidium resin gas storage bubble layer 11, the heated conducting rods 8, the uniform heat horizontal circular plate 10 and the polyimidium resin gas storage bubble layer 11 jointly form a polyimidium resin gas storage bubble layer structure, when the temperature rises, the polyimidium resin gas storage bubble layer structure is heated to expand, the contact area, remind the maintainer, the temperature is unusual, overhauls, if not in time overhauls, the temperature reaches the ignition point, and after naked light contact outer layer structure, the carbon dioxide gasbag bursts apart, blows off combustion-supporting thing oxygen, slows down the burning of naked light, when the normal operating of protection transformer, strengthens the transformer function of saving oneself after unusual, and to a great extent guarantees the safe operation of transformer, prolongs the life of transformer major structure.
Referring to fig. 2, a plurality of natural wind inlet holes 12 are drilled in the air duct mixed gas upper flat plate 6, the natural wind inlet holes 12 are all located on the right side of the corresponding heat dispersing conducting rod 15, a plurality of windward inclined guide plates 13 are fixedly connected to the air duct mixed gas upper flat plate 6, the windward inclined guide plates 13 are all located on the left side of the corresponding natural wind inlet holes 12, and the amount of natural wind entering the inclined heat conducting expansion protection mechanism 5 is increased through the windward inclined guide plates 13 additionally arranged on the air duct mixed gas upper flat plate 6, so that the cooling effect of natural wind on the amorphous alloy transformer unit 2 is accelerated.
Referring to fig. 2, one end of the windward inclined guide plate 13, which is far away from the air mixing upper plate 6, is fixedly connected with a wind pressure guide arc-shaped piece 14, and the wind pressure guide arc-shaped piece 14 inclines towards one side far away from the heat dispersion conduction rod 15, referring to fig. 2B, the connection part of the windward inclined guide plate 13 and the wind pressure guide arc-shaped piece 14 is in an arc-shaped arrangement, so that the air flow enters the natural wind inlet hole 12 at a relatively flat and gentle angle, which is convenient for reducing the pressure on the wind pressure guide arc-shaped piece 14 when the natural wind enters the inclined heat conduction expansion protection mechanism 5 under the guidance of the wind pressure guide arc-shaped piece 14, thereby prolonging the service life.
Referring to fig. 2, a plurality of embedded heat conducting grooves are formed in the windward lower base plate 7 in a chiseled mode, an inner thorn heat absorbing rod is arranged in each embedded heat conducting groove and fixedly connected with the inner wall of each embedded heat conducting groove, the inner thorn heat absorbing rod is far away from a heat absorbing flat plate fixedly connected with one end of the inclined heat conducting expansion protection mechanism 5, the heat absorbing flat plate is tightly attached to the inner wall of the amorphous alloy transformer unit 2, when the transformer unit 2 works and generates heat, the heat is conducted into the windward lower base plate 7 through the inner thorn heat absorbing rod, compared with natural cooling in the prior art, the windward lower base plate 7 is increased in contact area with the outside, and the windward lower base plate 7 is enabled to assist in quickly dissipating heat conducted from the temperature in the transformer unit 2.
Referring to fig. 2, a heat-insulating separating frame 9 is disposed between the air-duct mixed-air upper plate 6 and the windward lower plate 7, a plurality of heat-insulating and heat-transferring holes are drilled in the heat-insulating separating frame 9, the heat-insulating and heat-transferring holes are uniformly distributed on the heat-insulating separating frame 9, and the heat-insulating and heat-transferring holes are disposed corresponding to the heat-conducting rods 8, and the heat-insulating separating frame 9 is additionally disposed between the air-duct mixed-air upper plate 6 and the windward lower plate 7 to separate the air heated by the air-duct mixed-air upper plate 6 from the air heated by the windward lower plate 7, so as to cool the air respectively.
Referring to fig. 3, the polyimide resin gas storage bubble layer 11 is filled with carbon dioxide gas and a plurality of inert gases, both of which have high thermal expansion coefficients, therefore, under the condition of heating, the gas in unit volume expands, the volume is enlarged, carbon dioxide and various inert gases are uniformly mixed in the polyurethane gas bubble layer 11, the carbon dioxide and the inert gas filled in the polyurethane gas bubble layer 11 are convenient for the polyurethane gas bubble layer 11 to expand after being heated, the contact area with the external environment is increased, therefore, the cooling rate is accelerated, after the polyimide resin gas bubble layer 11 expands and explodes, the oxygen of combustion-supporting gas is discharged by the diffused carbon dioxide and inert gas, open fire combustion is slowed down, and the plurality of inert gases mainly comprise helium and argon, so that the reaction of the heated gas at high temperature is reduced.
Referring to fig. 2, a plurality of hard heat conducting bristles 16 are fixedly connected to the heat conducting rod 15, a plurality of curved fluff filaments 17 are fixedly connected to the hard heat conducting bristles 16, the hard heat conducting bristles 16 are densely arranged, so that the surface areas of the heat conducting rod 15 and the hard heat conducting bristles 16 are increased, a loose porous sponge-like structure is manufactured, after carbon dioxide and inert gas in the polyurethane gas storage bubble layer 11 leak, a part of the porous structure stores nonflammable gas, open flame combustion is further prevented, meanwhile, a large number of air gaps are formed in the inclined heat conducting expansion protection mechanism 5, so that noise in the working process of the amorphous alloy transformer monomer 2 is reduced, and a spiral air guide groove is formed inside the natural air inlet 12, so that wind direction turbulence of natural air entering the inclined heat conducting expansion protection mechanism 5 is reduced.
Referring to fig. 3, the porous structure is loosened in a normal state, a large number of air gaps are formed inside the porous structure, noise reduction and temperature insulation of the transformer body are facilitated, after the temperature rises, the internal heat conducting plate conducts heat to the outer layer, the polyimide gas bubble layer structure expands when heated, the contact area with the outside is increased, the heat dissipation rate is accelerated, meanwhile, the color of the expanded polyimide gas bubble layer changes, maintainers are reminded of abnormal temperature and overhaul is performed, if the temperature reaches a burning point due to untimely overhaul, and after an open fire contacts the outer layer structure, the carbon dioxide gas bag bursts, combustion supporting matter oxygen is blown away, burning of the open fire is slowed down, normal operation of the transformer is protected, the self-rescue function of the transformer after the abnormal operation is enhanced, safe operation of the transformer is guaranteed to a great extent, and the service life of the main structure of the transformer is.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (7)
1. An amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism is characterized in that: the amorphous alloy transformer comprises a transformer base frame (1), three amorphous alloy transformer monomers (2) are arranged in the transformer base frame (1), the upper ends and the lower ends of the three amorphous alloy transformer monomers (2) are fixedly connected with the inner wall of the transformer base frame (1) respectively, the upper ends of the amorphous alloy transformer monomers (2) are fixedly connected with high-voltage terminals (4), the lower end of the transformer base frame (1) is fixedly connected with two beam bases (3), the outer layer of each amorphous alloy transformer monomer (2) is fixedly connected with a plurality of inclined heat conduction expansion protection mechanisms (5), each inclined heat conduction expansion protection mechanism (5) comprises an air duct mixed gas upper flat plate (6) and a windward side lower bottom plate (7), the air duct mixed gas upper flat plate (6) and the windward side lower bottom plate (7) are fixedly connected with the outer wall of each amorphous alloy transformer monomer (2), and a plurality of heat dissipation conducting rods (15) are fixedly connected with the lower, the upper end of the windward side lower bottom plate (7) is fixedly connected with a plurality of heated conducting rods (8), the upper ends of the heated conducting rods (8) are fixedly connected with soaking horizontal round plates (10), and the upper ends of the soaking horizontal round plates (10) are fixedly connected with polyimide gas storage bubble layers (11);
a plurality of natural air inlet holes (12) are drilled in the air channel air mixing upper flat plate (6), and the natural air inlet holes (12) are all positioned on the right side of the corresponding heat-dispelling conduction rod (15); a plurality of windward inclined guide plates (13) are fixedly connected to the air duct air mixing upper flat plate (6), and the windward inclined guide plates (13) are all positioned on the left sides of the corresponding natural wind inlet holes (12); a plurality of embedded heat conducting grooves are formed in the windward side lower bottom plate (7) in a chiseled mode, an inner thorn heat absorbing rod is arranged in each embedded heat conducting groove and fixedly connected with the inner wall of each embedded heat conducting groove, one end, far away from the inclined heat conducting expansion protection mechanism (5), of each inner thorn heat absorbing rod is fixedly connected with a heat absorbing flat plate, and the heat absorbing flat plates are tightly attached to the inner wall of the amorphous alloy transformer single body (2);
wherein, it has a plurality of embedded heat conduction grooves to open in the windward side lower plate 7, and the heat absorption pole of thorn in being equipped with in the embedded heat conduction groove, interior thorn heat absorption pole and embedded heat conduction inslot wall fixed connection, interior thorn heat absorption pole keep away from the oblique heat conduction and rise 5 one end fixedly connected with heat absorption flat board of protection mechanism, and the heat absorption flat board closely laminates with 2 inner walls of amorphous alloy transformer monomer, and when transformer monomer 2 internal work generated heat, the heat was in the windward side lower plate 7 of thorn heat absorption pole conduction.
2. An amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism as claimed in claim 1, wherein: wind-facing inclined guide plate (13) keep away from wind channel gas mixture and go up dull and stereotyped (6) one end fixedly connected with wind pressure direction arc piece (14), wind pressure direction arc piece (14) are to keeping away from heat conduction pole (15) lopsidedness, wind-facing inclined guide plate (13) are the arc setting with wind pressure direction arc piece (14) junction.
3. An amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism as claimed in claim 1, wherein: a heat-insulating heat transfer hole is uniformly distributed on the heat-insulating heat transfer frame (9), and the heat-insulating heat transfer hole is arranged corresponding to the heated conductive rod (8).
4. An amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism as claimed in claim 1, wherein: and the polyimide resin gas storage bubble layer (11) is filled with carbon dioxide gas and various inert gases, and the carbon dioxide and the various inert gases are uniformly mixed in the polyimide resin gas storage bubble layer (11).
5. An amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism as claimed in claim 4, wherein: the plurality of inert gases includes primarily helium and argon.
6. An amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism as claimed in claim 1, wherein: the heat-conducting rod (15) is fixedly connected with a plurality of hard heat-conducting bristles (16), the hard heat-conducting bristles (16) are fixedly connected with a plurality of curved fluff filaments (17), and the hard heat-conducting bristles (16) are densely arranged.
7. An amorphous alloy dry-type transformer with a thermal expansion bubble protection mechanism as claimed in claim 1, wherein: the natural wind inlet hole (12) is internally provided with a spiral wind guide groove.
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| CN110428928B (en) * | 2019-08-08 | 2020-12-15 | 浙江智晟科技有限公司 | Cable device convenient for video monitoring line wiring and use method thereof |
| CN110783070B (en) * | 2019-11-13 | 2020-12-01 | 白云兵 | Laminated heat dissipation mechanism for transformer |
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| CN113517117B (en) * | 2021-05-06 | 2022-06-24 | 安徽金环电气设备有限责任公司 | Dry-type transformer with function is reminded to coating crackle |
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