CN111540570B - Transformer cabinet based on self-feedback uniform heat dissipation - Google Patents
Transformer cabinet based on self-feedback uniform heat dissipation Download PDFInfo
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- CN111540570B CN111540570B CN202010517458.XA CN202010517458A CN111540570B CN 111540570 B CN111540570 B CN 111540570B CN 202010517458 A CN202010517458 A CN 202010517458A CN 111540570 B CN111540570 B CN 111540570B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
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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
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
Abstract
The invention discloses a transformer cabinet based on self-feedback uniform heat dissipation, belonging to the field of transformer equipment, which can realize that a special composite heat dissipation sheet is additionally arranged on the surface of the existing transformer oil tank, a lifting heat absorption balloon matched with the oil tank is introduced while the heat dissipation of the oil tank is greatly improved, a self-feedback heat dissipation mechanism arranged on the composite heat dissipation sheet is utilized to sense the heat distribution condition on the transformer oil tank, the self-feedback heat dissipation mechanism is utilized to carry out phase-showing expansion according to the heat distribution, more lifting heat absorption balloons are adsorbed by the magnetic attraction action to contact for heat transfer, the heat transfer to the lifting heat absorption balloon is accelerated, the lifting heat absorption balloon automatically rises to a cup-shaped outer heat dissipation shell after absorbing enough heat to transfer the heat to the outside, the lifting heat absorption balloon is used as an intermediate medium to play a role of temporary heat storage, a heat conduction bridge between the transformer oil tank and the outside is constructed, and the uniform and efficient heat dissipation and cooling of the transformer oil tank are realized, thereby improving the working stability and safety of the transformer.
Description
Technical Field
The invention relates to the field of transformer equipment, in particular to a transformer cabinet based on self-feedback uniform heat dissipation.
Background
The prefabricated substation realizes electrical connection through a cable or a bus, all high-low voltage distribution devices and transformers are conventional shaped products, and the prefabricated substation has the advantages of small volume, small occupied area, light weight, low manufacturing cost and reliability, and is called a box-type substation or a prefabricated substation. The high-voltage switch equipment, the distribution transformer and the low-voltage distribution device are factory prefabricated indoor and outdoor compact distribution equipment which are integrated according to a certain wiring scheme, namely, the functions of transformer voltage reduction, low-voltage distribution and the like are organically combined together and are arranged in a steel structure box which is damp-proof, rust-proof, dust-proof, rat-proof, fireproof, anti-theft, heat-insulating, totally-closed and movable. The box-type transformer substation is suitable for mines, factory enterprises, oil-gas fields and wind power stations, replaces the original civil power distribution room and power distribution station, and becomes a novel complete set of power transformation and distribution device.
For a box-type substation, the box-type substation introduced and imitated from the countries of France, Germany and the like in the later 70 th century of China adopts a high-voltage and low-voltage switch cabinet and a transformer composition mode from the structure, the box-type substation is called as an European box-type substation, and is different from the European box-type substation, and the American box-type substation has the defects that as a load switch is immersed in oil, the oil is carbonized and decomposed by electric arc, harmful gases such as acetylene and the like are generated, so that the performance is reduced, and accidents occur once; the obvious disconnection point cannot be seen, the overhaul is inconvenient, because the American low-voltage protection and metering mode is different from that of China, and the American box transformer substation does not have the low-voltage protection and metering. Because the box-type variable-length case is under the direct sun of the sun, the heat dissipation of the molded case circuit breaker is influenced, the circuit breaker can not normally cut off load and short-circuit current, high-voltage side faults are easily caused, and compared with an European case transformer with the same capacity, the American case transformer is more reasonable in structure. Because the European box transformer is formed by arranging the transformer and common high-voltage electrical equipment in the same metal shell box body, the temperature of the transformer is very high, so that the heat dissipation is difficult, the normal working load of the transformer is seriously interfered, and the service life of the transformer is shortened.
The cooling of the transformer means that heat generated by the transformer in operation is dissipated by a certain method, and the heat generated by the loss in the winding and the iron core must be dissipated in time when the transformer is in operation so as to prevent insulation damage caused by overheating. For a small-capacity transformer, the ratio of the external surface area to the volume of the transformer is relatively large, and heat can be dissipated by radiation and natural convection in a self-cooling mode. The self-cooling method is suitable for indoor small-sized transformers, and dry type transformers without oil immersion are generally adopted for preventing fire.
Since the loss of a transformer is proportional to its volume, as the capacity of the transformer increases, its volume and loss will increase to the third power of the core size, while the outer surface area only increases to the second power of the size. Therefore, large capacity transformer cores and windings are immersed in oil, and most distribution transformers and many power transformers use this oil-immersed self-cooling method. The transformer with smaller capacity can cool oil by lubricating the surface of the oil tank; in the medium-capacity transformer, the surface of an oil tank is required to be corrugated to increase a radiating surface, or a finned or flat pipe radiator is additionally arranged to ensure that oil circularly flows in the radiator; the surface of a large-capacity transformer oil tank is additionally provided with a radiation radiator, but the heat released by the transformer in the operation process is not uniform enough, so that the internal local overheating is easily caused, the transformer oil is decomposed to generate gas, and the normal use of the transformer is influenced.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a transformer cabinet based on self-feedback uniform heat dissipation, which can realize the purposes that a special composite type heat dissipation fin is additionally arranged on the surface of the existing transformer oil tank, a matched lifting heat absorption balloon is introduced while the heat dissipation of the oil tank is greatly improved, a self-feedback heat dissipation mechanism arranged on the composite type heat dissipation fin is utilized to sense the heat distribution condition on the transformer oil tank, the self-feedback heat dissipation mechanism expands obviously according to the heat distribution, the original magnetic shielding range is broken through and the lifting heat absorption balloon expands to the outside, more lifting heat absorption balloons are adsorbed by the magnetic attraction effect of the lifting heat absorption balloon to contact and transfer heat, the transfer of the heat to the lifting heat absorption balloon is accelerated, the lifting heat absorption balloon automatically rises to a cup-shaped outer heat dissipation shell after absorbing enough heat to transfer the heat to the outside, and the lifting heat absorption balloon serves as an intermediate medium to play a role of temporary heat storage, the heat conduction bridge between the transformer oil tank and the outside is constructed, the purpose of self-feedback is achieved by sensing heat distribution, the transformer oil tank is uniformly and efficiently cooled through heat dissipation based on the autonomous cooperation of the lifting heat absorption balloon, and therefore the working stability and safety of the transformer are improved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A transformer cabinet based on self-feedback uniform heat dissipation comprises a transformer cabinet, wherein a transformer body is installed in the transformer cabinet, a plurality of uniformly distributed composite heat dissipation fins are fixedly connected to the outer surface of the transformer body, each composite heat dissipation fin comprises a heat conduction substrate, heat dissipation surface layers are fixedly connected to the left end and the right end of the heat conduction substrate, a plurality of uniformly distributed self-feedback heat dissipation mechanisms are embedded on the outer surface of each heat dissipation surface layer, each self-feedback heat dissipation mechanism comprises an extension heat conduction block integrally connected with the heat conduction substrate, a sensing thermal expansion ball is fixedly connected to the extension heat conduction block, a magnetic shielding sleeve embedded in each heat dissipation surface layer is sleeved on the outer side of the sensing thermal expansion ball, an epitaxial flowing heat dissipation bag integrally communicated with the heat dissipation surface layers is arranged in each magnetic shielding sleeve, a plurality of uniformly distributed heat conduction balls are embedded on the outer surface of the epitaxial flowing heat dissipation bag, a plurality of lifting heat absorption balloons are further adsorbed on the outer surface of the epitaxial flowing heat dissipation bag, and a plurality of cup-shaped outer heat dissipation shells matched with the lifting heat absorption balloons are installed at the upper end of the transformer cabinet in an embedded mode.
Furthermore, a matched flexible heat conduction net is arranged in the epitaxial mobile heat dissipation bag, a magnetic suction ball is fixedly connected to a node of the flexible heat conduction net, and a heat conduction wire is fixedly connected between the magnetic suction ball and the adjacent heat conduction ball, so that the heat absorbed by the heat conduction ball from the epitaxial mobile heat dissipation bag can be improved, meanwhile, the basic setting effect of the epitaxial mobile heat dissipation bag is improved by the flexible heat conduction net, and the flexible heat conduction net can be pulled to deform correspondingly after the epitaxial mobile heat dissipation bag expands and unfolds.
Further, lift heat absorption balloon includes the balloon body, this internal fixedly connected with of balloon piece that absorbs heat retaining, it is connected with a plurality of magnetic particles to inlay in the piece that absorbs heat retaining, the balloon body is kept away from the drainage tow of many evenly distributed of piece one end inner wall fixedly connected with that absorbs heat retaining, balloon body self has good heat conductivity, it cooperatees to absorb heat retaining piece and magnetic particle, can be so that the one end that contains the piece that absorbs heat retaining is all the time with the mobile heat dissipation bag in extension in close contact with, and the absorbent condensing agent can quickly absorbed the heat and vaporize in the piece that absorbs heat retaining, drainage tow plays the effect that the condensation after the vaporization with higher speed falls back to the condensation, and the setting up of the piece that absorbs heat retaining also can increase weight and prescribe a limit to the lift direction of lift heat absorption balloon, guarantee heat absorption and exothermic high efficiency simultaneously.
Further, the balloon body adopts heat conduction silica gel material to make, the porous water storage material is adopted to the heat absorption retaining piece, it has the condensing agent to absorb in the porous water storage material, and the balloon body had both had good heat conduction effect, and self can deform the laminating increase heat transfer area and have certain buoyancy effect simultaneously, and porous water storage material not only can absorb a large amount of condensing agents to make the part carry out high-efficient heat transfer on the contact surface, and porous characteristic has the effect of natural dispersion condensing agent simultaneously, improves the heat absorption area and the efficiency of condensing agent.
Further, the outer heat dissipation shell of cup type is including inlaying in the heat dissipation parcel cover of transformer cabinet upper end, and the heat dissipation parcel cover and the heat absorption balloon phase-match that goes up and down, heat dissipation parcel upper end fixedly connected with heat dissipation needle, fixedly connected with integrated into one piece's guide sphere between the heat dissipation needle utilizes the guide sphere to lead it to carry out the contact parcel in the heat dissipation parcel cover after the heat absorption balloon that goes up and down rises, thermal transfer with higher speed for the heat gives off to the external world through the heat dissipation needle fast.
Further, transformer body upper end fixedly connected with reposition of redundant personnel fan through the mobility of air motion in keeping the transformer cabinet on the one hand, promotes temperature distribution's homogeneity, and on the other hand forms the air current and strikes and avoids the lift heat absorption balloon to stop and be difficult to cooperate with compound fin and play the effect of heat transfer above transformer body.
Furthermore, the heat dissipation surface layer and the epitaxial fluidity heat dissipation bag are filled with a mixture of heat conduction oil and heat conduction graphite particles, the filling volume ratio is 1:1-2, the mixture of the heat conduction oil and the heat conduction graphite particles has extremely excellent heat conduction performance, meanwhile, the mixture has fluidity to meet the expansion of the epitaxial fluidity heat dissipation bag, and the heat conduction performance can be continuously kept high all the time.
Furthermore, the sensing thermal expansion ball is filled with gas with a high thermal expansion coefficient, the gas is carbon dioxide, the sensing thermal expansion ball has good temperature sensing performance, the expansion is larger as the temperature is higher, the expansion area for extruding the epitaxial fluidity heat dissipation bag to expand and expand to the outside is also increased, and the number of the adsorbed lifting heat absorption balloons is also larger, so that the efficient transfer of heat is realized, and the basis for realizing uniform heat dissipation is realized.
Furthermore, the heat dissipation surface layer is made of hard heat conduction materials, the epitaxial mobile heat dissipation bag is made of elastic heat conduction materials, and meanwhile, the heat dissipation performance is good, and the heat dissipation surface layer is difficult to deform after the sensing thermal expansion ball expands, so that the epitaxial mobile heat dissipation bag can be automatically filled in the epitaxial mobile heat dissipation bag after extruding the mixture of the heat conduction oil and the heat conduction graphite particles, and then the epitaxial mobile heat dissipation bag is forced to expand and expand towards the outside, and the adsorption of the lifting heat absorption balloon by directional expansion is realized.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can realize that special composite radiating fins are additionally arranged on the surface of the existing transformer oil tank, the matched lifting heat absorption balloon is introduced while the heat radiation of the oil tank is greatly improved, the self-feedback radiating mechanism arranged on the composite radiating fins is utilized to sense the heat distribution condition on the transformer oil tank, the self-feedback radiating mechanism expands according to the heat distribution, the original magnetic shielding range is broken through and the lifting heat absorption balloon expands to the outside, more lifting heat absorption balloons are adsorbed by the magnetic attraction effect of the lifting heat absorption balloon to contact and transfer heat, the transfer of the heat to the lifting heat absorption balloon is accelerated, the lifting heat absorption balloon automatically rises to the cup-shaped outer radiating shell after absorbing enough heat to transfer the heat to the outside, the lifting heat absorption balloon is used as an intermediate medium to play a role of temporary heat storage, a heat conduction bridge between the transformer oil tank and the outside is constructed, and the self-feedback purpose is achieved by sensing the heat distribution, the transformer oil tank is uniformly and uniformly cooled in an efficient heat dissipation mode based on the autonomous cooperation of the lifting heat absorption balloon, so that the working stability and safety of the transformer are improved.
(2) Be equipped with assorted flexible heat conduction net in the mobile heat dissipation bag of epitaxy, the node fixedly connected with magnetism of flexible heat conduction net inhales the ball, fixedly connected with heat conduction wire drawing between magnetism inhale the ball and the adjacent heat conduction ball, not only can improve the heat that the heat conduction ball was absorbed from the mobile heat dissipation bag of epitaxy, the basic setting effect of the mobile heat dissipation bag of epitaxy is improved with flexible heat conduction net on the one hand to the while of supplementing each other, on the other hand can pull the corresponding deformation of flexible heat conduction net after the mobile heat dissipation bag of epitaxy expands in order to adapt to.
(3) The lift heat absorption balloon includes the balloon body, this internal fixedly connected with of balloon piece that absorbs heat, it is connected with a plurality of magnetic particles to inlay in the piece that absorbs heat retaining, the balloon body is kept away from the drainage tow of many evenly distributed of piece one end inner wall fixedly connected with that absorbs heat retaining, balloon body self has good heat conductivity, it cooperatees to absorb heat retaining piece and magnetic particle, can be so that the one end that contains the piece that absorbs heat retaining is all the time with the mobile heat dissipation bag in epitaxy in close contact with, and the absorbent condensing agent can the rapid absorption heat vaporize in the piece that absorbs heat retaining, drainage tow plays the effect that the condensation after the vaporization falls back on heart again with higher speed, and the setting of the piece that absorbs heat retaining also can increase weight and prescribe a limit to the lift direction of lift heat absorption balloon, guarantee heat absorption and exothermic high efficiency simultaneously.
(4) The balloon body is made of a heat-conducting silica gel material, the heat-absorbing water storage block is made of a porous water storage material, condensing agents are absorbed in the porous water storage material, the balloon body has a good heat conduction effect, meanwhile, the porous water storage material can deform to fit with the heat exchange area and has a certain buoyancy effect, a large amount of condensing agents can be absorbed by the porous water storage material, efficient heat exchange is conducted on the contact surface, meanwhile, the porous property has the effect of naturally dispersing the condensing agents, and the heat absorption area and the efficiency of the condensing agents are improved.
(5) The cup-shaped outer heat dissipation shell comprises a heat dissipation wrapping sleeve embedded in the upper end of the transformer cabinet, the heat dissipation wrapping sleeve is matched with the lifting heat absorption balloon, a heat dissipation needle is fixedly connected to the upper end of the heat dissipation wrapping sleeve, an integrally formed guide spherical surface is fixedly connected between the heat dissipation needles, the lifting heat absorption balloon is guided to the heat dissipation wrapping sleeve through the guide spherical surface after rising to be in contact wrapping, and heat transfer is accelerated so that heat is quickly dissipated to the outside through the heat dissipation needle.
(6) Transformer body upper end fixedly connected with reposition of redundant personnel fan through the mobility of air motion in keeping the transformer cabinet on the one hand, promotes temperature distribution's homogeneity, and on the other hand forms the air current and strikes and avoids the lift heat absorption balloon to stop to cooperate with compound fin and play the effect of heat transfer above the transformer body.
(7) The heat dissipation surface layer and the epitaxial fluidity heat dissipation bag are filled with a mixture of heat conduction oil and heat conduction graphite particles, the filling volume ratio is 1:1-2, the mixture of the heat conduction oil and the heat conduction graphite particles has extremely excellent heat conduction performance, meanwhile, the mixture has fluidity to meet the expansion of the epitaxial fluidity heat dissipation bag, and the heat conduction performance can be continuously kept high all the time.
(8) The sensing thermal expansion ball is filled with gas with high thermal expansion coefficient, the gas is carbon dioxide, the sensing thermal expansion ball has good temperature sensing performance, the expansion is larger when the temperature is higher, the expansion area of the extruding epitaxial flowing heat dissipation bag expanding to the outside is increased, and the adsorbed lifting heat absorption balloon is more, so that the efficient transfer of heat is realized, and the basis of uniform heat dissipation is realized.
(9) The heat dissipation surface layer is made of hard heat conduction materials, the epitaxial mobile heat dissipation bag is made of elastic heat conduction materials, and meanwhile, the heat dissipation performance is good, and the heat dissipation surface layer is difficult to deform after the sensing thermal expansion ball expands, so that the epitaxial mobile heat dissipation bag can be filled in the epitaxial mobile heat dissipation bag after extruding a mixture of heat conduction oil and heat conduction graphite particles, then the epitaxial mobile heat dissipation bag is forced to expand and expand towards the outside, and the adsorption of the directional expansion on the lifting heat absorption balloon is realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a composite heat sink of 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 self-feedback heat dissipation mechanism in a normal state according to the present invention;
FIG. 5 is a schematic structural diagram of the self-feedback heat dissipation mechanism in a deformed state according to the present invention;
FIG. 6 is a schematic view of the construction of the lifting endothermic balloon of the present invention;
fig. 7 is a schematic structural view of a cup-shaped heat dissipation housing portion according to the present invention.
The reference numbers in the figures illustrate:
1 transformer cabinet, 2 transformer bodies, 3 composite radiating fins, 31 heat conducting substrates, 32 heat radiating surface layers, 33 self-feedback radiating mechanisms, 331 extending heat conducting blocks, 332 perception heat expansion balls, 333 magnetic shielding sleeves, 334 epitaxial flowing radiating bags, 4 shunt fans, 5 lifting heat absorbing balloons, 51 balloon bodies, 52 heat absorbing and water storing blocks, 53 magnetic particles, 54 drainage fiber bundles, 6 cup-shaped outer radiating shells, 61 radiating pins, 62 heat radiating wrapping sleeves, 63 guiding spherical surfaces, 7 heat conducting balls, 8 flexible heat conducting nets, 9 magnetic absorbing balls and 10 heat conducting wire drawing.
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 explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-2, a transformer cabinet based on self-feedback uniform heat dissipation comprises a transformer cabinet 1, a transformer body 2 is installed in the transformer cabinet 1, a plurality of uniformly distributed composite heat dissipation fins 3 are fixedly connected to the outer surface of the transformer body 2, a shunt fan 4 is fixedly connected to the upper end of the transformer body 2, on one hand, the fluidity of air in the transformer cabinet 1 is maintained through airflow movement to promote the uniformity of temperature distribution, on the other hand, airflow impact is formed to prevent a lifting heat absorption balloon 5 from staying above the transformer body 2 and being difficult to match with the composite heat dissipation fins 3 to play a role in heat transfer, the composite heat dissipation fins 3 comprise a heat conduction substrate 31, heat dissipation surface layers 32 are fixedly connected to the left and right ends of the heat conduction substrate 31, a plurality of uniformly distributed self-feedback heat dissipation mechanisms 33 are embedded on the outer surface of the heat dissipation surface layers 32 to sense the heat distribution on the transformer body 2, and then corresponding actions are performed on a targeted basis.
Referring to fig. 3, the self-feedback heat dissipation mechanism 33 includes an extension heat conduction block 331 integrally connected to the heat conduction substrate 31, a sensing thermal expansion ball 332 is fixedly connected to the extension heat conduction block 331, the sensing thermal expansion ball 332 is filled with a gas with a high thermal expansion coefficient, the gas is carbon dioxide, the sensing thermal expansion ball 332 has good temperature sensing performance, the expansion of the sensing thermal expansion ball is larger as the temperature is higher, the area of the extension fluid heat dissipation bag 334 expanded to the outside is increased, the number of the adsorbed lifting heat absorption balloons 5 is also larger, so as to realize efficient heat transfer, in order to realize the uniform heat dissipation basis, a magnetic shielding sleeve 333 embedded in the heat dissipation surface layer 32 is sleeved outside the sensing thermal expansion ball 332, the extension fluid heat dissipation bag 334 integrally communicated with the heat dissipation surface layer 32 is arranged in the magnetic shielding sleeve 333, the heat dissipation surface layer 32 is made of a hard heat conduction material 334, the extension fluid heat dissipation bag is made of an elastic heat conduction material, meanwhile, the heat dissipation device has good heat dissipation performance, and after the thermal expansion sensing ball 332 expands, because the heat dissipation surface layer 32 is difficult to deform, so that the mixture of the heat conduction oil and the heat conduction graphite particles is automatically filled into the extending-out flowing heat dissipation bag 334 after being extruded, then force extension mobility heat dissipation bag 334 to expand to the external world, realize directional expansion and to the absorption of lift heat absorption balloon 5, it connects with a plurality of evenly distributed heat conduction balls 7 to inlay on the outer surface of extension mobility heat dissipation bag 334, be used for improving the heat transfer effect between extension mobility heat dissipation bag 334 and the lift heat absorption balloon 5, it has a plurality of lift heat absorption balloons 5 still to adsorb on the outer surface of extension mobility heat dissipation bag 334, transformer cabinet 1 upper end is inlayed and is installed a plurality of outer heat dissipation shell 6 of cup type that match with lift heat absorption balloon 5, be used for shifting the heat on the lift heat absorption balloon 5 to the external world rapidly and resume its heat absorption performance.
Referring to fig. 4-5, a flexible heat conducting net 8 is disposed in the epitaxial mobile heat dissipation bag 334, a magnetic absorption ball 9 is fixedly connected to a node of the flexible heat conducting net 8, the absorption amount of the lifting heat absorption balloon 5 can be controlled according to the distribution of the magnetic absorption balls 9 in the magnetic shielding sleeve 333, and a heat conducting wire 10 is fixedly connected between the magnetic absorption ball 9 and the adjacent heat conducting ball 7, so that the heat absorbed by the heat conducting ball 7 from the epitaxial mobile heat dissipation bag 334 can be increased, and the flexible heat conducting net 8 can be used to increase the basic shaping effect of the epitaxial mobile heat dissipation bag 334, and the flexible heat conducting net 8 can be pulled to deform correspondingly after the epitaxial mobile heat dissipation bag 334 expands and deploys.
Referring to fig. 6, the lifting heat absorption balloon 5 includes a balloon body 51, a heat absorption water storage block 52 is fixedly connected in the balloon body 51, a plurality of magnetic particles 53 are embedded and connected in the heat absorption water storage block 52, a plurality of drainage fiber bundles 54 are fixedly connected to an inner wall of one end of the balloon body 51, which is far away from the heat absorption water storage block 52, and are uniformly distributed, the balloon body 51 has good thermal conductivity, the heat absorption water storage block 52 is matched with the magnetic particles 53, so that one end of the balloon body 51, which contains the heat absorption water storage block 52, can be always in close contact with the epitaxial fluidity heat dissipation bag 334, the coolant absorbed in the heat absorption water storage block 52 can quickly absorb heat for vaporization, the drainage fiber bundles 54 play a role in accelerating the condensation after vaporization and then re-condensing and falling again, the arrangement of the heat absorption water storage block 52 can also increase the weight to limit the lifting direction of the lifting heat absorption balloon 5, and guarantee the high efficiency of heat absorption and heat release, the balloon body 51 is made of a heat-conducting silica gel material, the heat-absorbing water storage block 52 is made of a porous water storage material, condensing agents are absorbed in the porous water storage material, the balloon body 51 has a good heat-conducting effect, meanwhile, the porous water storage material can deform to fit with the heat exchange area and has a certain buoyancy effect, a large amount of condensing agents can be absorbed by the porous water storage material, efficient heat exchange is carried out on the contact surface, meanwhile, the porous property has the effect of naturally dispersing the condensing agents, and the heat absorption area and the efficiency of the condensing agents are improved.
Referring to fig. 7, the cup-shaped external heat dissipation shell 6 includes a heat dissipation wrapping sleeve 62 embedded at the upper end of the transformer cabinet 1, the heat dissipation wrapping sleeve 62 is matched with the lifting heat absorption balloon 5, a heat dissipation pin 61 is fixedly connected at the upper end of the heat dissipation wrapping sleeve 62, an integrally formed guiding spherical surface 63 is fixedly connected between the heat dissipation pins 61, the lifting heat absorption balloon 5 is guided to the heat dissipation wrapping sleeve 62 by the guiding spherical surface 63 for contact wrapping after rising, so that heat transfer is accelerated, and the heat is quickly dissipated to the outside through the heat dissipation pin 61.
The heat dissipation surface layer 32 and the epitaxial fluidity heat dissipation bag 334 are both filled with a mixture of heat conduction oil and heat conduction graphite particles, the filling volume ratio is 1:1-2, the mixture of the heat conduction oil and the heat conduction graphite particles has extremely excellent heat conduction performance, meanwhile, the mixture has fluidity to meet the expansion of the epitaxial fluidity heat dissipation bag 334, and the heat conduction performance can be continuously kept high all the time.
When the heat-absorbing and heat-absorbing type transformer cabinet is used, a large amount of heat generated by the transformer body 2 during operation is radiated and cooled through the composite radiating fins 3, the sensing thermal expansion balls 332 are used for indirectly sensing the heat distribution on the transformer body 2 and presenting different thermal expansion degrees, then the extending flowing radiating bags 334 are extruded to expand and expand correspondingly, the magnetic absorbing balls 9 are utilized to break through the shielding range of the magnetic shielding sleeve 333, then the lifting heat-absorbing balloons 5 in the absorption transformer cabinet 1 are attracted to be close to and contacted with each other actively to be attached, so that the heat of the extending flowing radiating bags 334 is transferred to the lifting heat-absorbing balloons 5 rapidly, after the lifting heat-absorbing balloons 5 absorb certain heat, the condensing agent in the heat-absorbing and water-storing block 52 is vaporized to generate an expansion phenomenon, so that the lifting heat-absorbing balloons 5 are expanded in an overall expansion and buoyancy force and also is increased, then the magnetic attraction force is counteracted to rise to the cup-shaped outer radiating shell 6 to be attached to the radiating wrapping sleeve 62 to condense and liquefy the vaporized condensing agent, force the heat to shift to the external world through heat dissipation package cover 62 and heat dissipation needle 61, it sinks under the action of gravity to flow back to heat absorption retaining piece 52 again at the condensing agent liquefaction, then the magnetism of ball 9 is inhaled the effect and the contact of mobile heat dissipation bag 334 of epitaxy and begin the heat absorption of new round at the magnetism, see in transformer body 2's heat dissipation global, lift heat absorption balloon 5 acts as the effect of intermediary heat accumulator, and can perceive the heat distribution on transformer body 2, the regional absorbent lift heat absorption balloon 5 of heat is many, the regional absorbent lift heat absorption balloon 5 of heat is few, effectively carry out reasonable distribution with lift heat absorption balloon 5 and realize high-efficient and homogeneous heat dissipation.
The invention can realize that special compound radiating fins are additionally arranged on the surface of the existing transformer oil tank, the matched lifting heat absorption balloon 5 is introduced while the heat radiation of the oil tank is greatly improved, the self-feedback radiating mechanism 33 arranged on the compound radiating fins is used for sensing the heat distribution condition on the transformer oil tank and performing phase-display expansion according to the heat distribution, the original magnetic shielding range is broken through and the lifting heat absorption balloon 5 is expanded to the outside, more lifting heat absorption balloons 5 are adsorbed by the magnetic attraction effect of the lifting heat absorption balloon 5 to contact for heat transfer, the heat transfer to the lifting heat absorption balloon 5 is accelerated, the lifting heat absorption balloon 5 automatically rises to the cup-shaped outer radiating shell 6 after absorbing enough heat to transfer the heat to the outside, the lifting heat absorption balloon 5 is used as an intermediate medium to play a role of temporary heat storage, and a heat conduction bridge between the transformer oil tank and the outside is constructed, simultaneously, the purpose of self-feedback is achieved by sensing heat distribution, and the transformer oil tank is uniformly and efficiently cooled through heat dissipation based on the autonomous cooperation of the lifting heat absorption balloon 5, so that the working stability and safety of the transformer are improved.
The above are merely preferred embodiments 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 (6)
1. The utility model provides a transformer cabinet based on self-feedback homogeneous is radiating, includes transformer cabinet (1), install transformer body (2) in transformer cabinet (1), transformer body (2) surface fixed connection has polylith evenly distributed's compound fin (3), its characterized in that: the composite radiating fin (3) comprises a heat conducting substrate (31), a heat radiating surface layer (32) is fixedly connected with the left end and the right end of the heat conducting substrate (31), a self-feedback heat radiating mechanism (33) with a plurality of uniform distributions is embedded on the outer surface of the heat radiating surface layer (32), the self-feedback heat radiating mechanism (33) comprises an extension heat conducting block (331) integrally connected with the heat conducting substrate (31), a sensing thermal expansion ball (332) is fixedly connected onto the extension heat conducting block (331), a magnetic shielding sleeve (333) embedded into the heat radiating surface layer (32) is sleeved on the outer side of the sensing thermal expansion ball (332), an epitaxial mobile radiating bag (334) integrally communicated with the heat radiating surface layer (32) is arranged in the magnetic shielding sleeve (333), a plurality of uniformly distributed heat conducting balls (7) are embedded and connected onto the outer surface of the epitaxial mobile radiating bag (334), and a plurality of lifting heat absorbing balloons (5) are further adsorbed on the outer surface of the epitaxial mobile radiating bag (334), the upper end of the transformer cabinet (1) is embedded with a plurality of cup-shaped outer heat dissipation shells (6) matched with the lifting heat absorption balloons (5);
a matched flexible heat conduction net (8) is arranged in the epitaxial fluidity heat dissipation bag (334), a magnetic suction ball (9) is fixedly connected at the node of the flexible heat conduction net (8), and a heat conduction wire drawing (10) is fixedly connected between the magnetic suction ball (9) and the adjacent heat conduction ball (7);
the lifting heat absorption balloon (5) comprises a balloon body (51), a heat absorption and water storage block (52) is fixedly connected in the balloon body (51), a plurality of magnetic particles (53) are embedded and connected in the heat absorption and water storage block (52), and a plurality of drainage fiber bundles (54) which are uniformly distributed are fixedly connected to the inner wall of one end, far away from the heat absorption and water storage block (52), of the balloon body (51);
the balloon body (51) is made of a heat-conducting silica gel material, the heat absorption and water storage block (52) is made of a porous water storage material, and a condensing agent is absorbed in the porous water storage material.
2. The transformer cabinet based on self-feedback uniform heat dissipation of claim 1, wherein: cup type outer heat dissipation shell (6) is including inlaying in heat dissipation parcel cover (62) of transformer cabinet (1) upper end, and heat dissipation parcel cover (62) and lift endothermic balloon (5) phase-match, heat dissipation parcel cover (62) upper end fixedly connected with heat dissipation needle (61), fixedly connected with integrated into one piece's guide sphere (63) between heat dissipation needle (61).
3. The transformer cabinet based on self-feedback uniform heat dissipation of claim 1, wherein: the upper end of the transformer body (2) is fixedly connected with a shunt fan (4).
4. The transformer cabinet based on self-feedback uniform heat dissipation of claim 1, wherein: the heat dissipation surface layer (32) and the epitaxial fluidity heat dissipation bag (334) are filled with a mixture of heat conduction oil and heat conduction graphite particles, and the filling volume ratio is 1: 1-2.
5. The transformer cabinet based on self-feedback uniform heat dissipation of claim 1, wherein: the sensing thermal expansion ball (332) is filled with gas with high thermal expansion coefficient, and the gas is carbon dioxide.
6. The transformer cabinet based on self-feedback uniform heat dissipation of claim 1, wherein: the heat dissipation surface layer (32) is made of hard heat conduction materials, and the extension flowing heat dissipation bag (334) is made of elastic heat conduction materials.
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| CN202010517458.XA CN111540570B (en) | 2020-06-09 | 2020-06-09 | Transformer cabinet based on self-feedback uniform heat dissipation |
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Denomination of invention: A transformer cabinet based on self feedback uniform heat dissipation Effective date of registration: 20220601 Granted publication date: 20211029 Pledgee: Yutai County Branch of China Postal Savings Bank Co.,Ltd. Pledgor: Jining Luxing Electric Technology Co.,Ltd. Registration number: Y2022980006854 |
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