CN209843451U - Be used for oil-immersed transformer cooling device - Google Patents

Abstract

The utility model provides a be used for oil-immersed transformer cooling device, including the cooling cabinet shell, the cooling cabinet shell internal fixation has the buffer board of supporting transformer main part, the cooling cabinet shell is located transformer main part both sides and is fixed with the refrigeration piece, the heating panel of two mutual symmetries of inner fixedly connected with of cooling cabinet shell, and two heating panels are located refrigeration piece top. An object of the utility model is to provide an oil-immersed transformer cooling device compares in current cooling device, can realize the whole cooling of transformer, reduces the inside heat of device, prolongs the life of transformer.

Description

Be used for oil-immersed transformer cooling device

Technical Field

The utility model relates to a be used for oil-immersed transformer cooling device.

Background

During operation of the transformer, losses occur in the iron core, the windings, the tank wall and other parts, and are converted into heat. In an oil-filled transformer, the heat loss is absorbed by the transformer oil, thereby increasing the temperature of the oil surface of the oil-filled transformer and the components such as windings. For oil-immersed transformers with low capacity, especially transformers with less than 20kVA, the heat dissipation capacity of the tank wall can dissipate the heat. When the voltage levels are the same, the capacity of the transformer is approximately proportional to the square value of the heat dissipation area of the oil tank, and the loss energy of the transformer is proportional to the installed capacity to the power of 0.75. Under certain temperature control requirements, the oil tank wall of the transformer with large single machine capacity cannot dissipate heat generated in operation, and the operation temperature of the transformer is increased. The increase in the temperature of the transformer winding leads to a reduction in the insulation life thereof, and when the hot spot temperature is between 100 and 140 degrees, for example, the hot spot temperature increases by 2K, the relative aging value is about 25%. Therefore, the control of the operation temperature of the transformer is of great significance to the economy and the operation safety. The oil immersed transformer can produce a large amount of heats in the course of the work, if the transformer is under the high temperature environment for a long time and can not in time cool down, not only can damage equipment, probably even cause great electric power accident.

Disclosure of Invention

The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is that current oil-immersed transformer can produce a large amount of heats in the course of the work and lead to damaging equipment because of high temperature easily

The utility model discloses a concrete implementation scheme is: the utility model provides a be used for oil-immersed transformer cooling device, includes the cooling cabinet shell, cooling cabinet shell internal fixation has the buffer board of support transformer main part, the handing-over of cooling cabinet shell outside has a pair of cabinet door that can open and shut, the cooling cabinet shell is located transformer main part both sides and is fixed with the refrigeration piece, the heating panel of two mutual symmetries of inner fixedly connected with of cooling cabinet shell, and two heating panels are located refrigeration piece top.

Furthermore, the both sides that lie in the buffer board in the cooling cabinet shell are respectively fixed with the support hanger plate symmetrically, be located the L shape spike that supports between hanger plate and the buffer board in transformer body bottom fixedly connected with, L shape spike lateral surface contacts with the support hanger plate, the surface that supports hanger plate and L shape spike and contact is the non-smooth surface.

Furthermore, the upper end and the lower end of the supporting suspension plate are respectively fixedly connected with an upper spring and a lower spring, one end, far away from the supporting suspension plate, of the upper spring is fixedly connected with the transformer main body, and one end, far away from the supporting suspension plate, of the lower spring is fixedly connected with the L-shaped supporting leg of the transformer main body.

Further, the bottom surface of the heat dissipation plate is provided with a plurality of uniformly distributed semicircular grooves, the bottom surface of the heat dissipation plate is fixedly connected with a plurality of uniformly distributed semicircular bulges, the semicircular bulges are located between every two adjacent semicircular grooves, and the contact area of the heat dissipation plate is increased by arranging the semicircular grooves and the semicircular bulges, so that the heat dissipation effect is improved.

Further, it has the ventilation hole to cut on the support hanging deck, the exhaust vent that has a plurality of evenly distributed is cut to cooling cabinet shell upper end, cooling cabinet shell bottom end fixedly connected with two condensers, the condenser incasement is filled with the coolant liquid, air pipe is installed in the condenser incasement, air pipe runs through the condenser case and with the inside intercommunication of cooling cabinet shell, the one end fixedly connected with air-blower of cooling cabinet shell is kept away from to air pipe, the air-blower blows in the air to the device inside through air pipe, the air is through being arranged in the inside air pipe of condenser case, be cooled down by the coolant liquid, make the air that enters into the device inside have the cooling effect.

Furthermore, the inner side surface of the refrigeration sheet is fixedly connected with a water absorption plate.

Furthermore, the buffer plate is made of rubber.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the invention aims to provide an oil-immersed transformer cooling device which can realize the integral cooling of a transformer, reduce the heat in the device and prolong the service life of the transformer compared with the conventional cooling device.

(2) The buffer plate is made of rubber materials, so that the buffer performance between the transformer main body and the cooling cabinet shell is improved by manufacturing the buffer plate with the rubber materials, and the damping effect of the device is improved.

(3) In the embodiment of the invention, the ends, close to each other, of the two refrigerating sheets are fixedly connected with the water suction plates, and the refrigerating sheets have a refrigerating effect, so that water vapor is easily liquefied when meeting cold in the surrounding areas and the cold and hot alternating areas of the refrigerating sheets, and the water suction plates are arranged to absorb water, so that the possibility of water inflow of the transformer main body is reduced.

(4) In the embodiment of the invention, the design of the middle rubber buffer plate and the L-shaped supporting leg is adopted to increase the buffer property between the transformer main body and the cooling cabinet shell, and the shock absorption, shock resistance and reliability of the cooling system are improved. Through setting up the coarse layer, increase the friction between support hanging plate and the L shape spike, when the device receives vibrations, can reach absorbing effect. The cushioning between the support suspension plate and the L-shaped arm brace is increased by the arrangement of the spring, so that the shock resistance of the device is increased.

(5) By adopting the embodiment of the invention, the surface of the heat dissipation plate adopts the semicircular groove and semicircular ridge structure to increase the heat dissipation area, and the heat dissipation efficiency of the heat dissipation plate is improved.

Drawings

FIG. 1 is a schematic overall structure of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic structural diagram at B in fig. 1.

In the figure: 1 transformer main part, 2 cooling cabinet shells, 3 buffer boards, 4 cabinet doors, 5 refrigeration sheets, 6 water absorption boards, 7 support suspension boards, 8L-shaped supporting feet, 91 upper springs, 92 lower springs, 10 ventilation holes, 11 heat dissipation boards, 12 semicircular grooves, 13 semicircular bulges, 14 air outlet holes, 15 condensation boxes, 16 ventilation pipelines and 17 air blowers.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 3, in this embodiment, including cooling cabinet housing 2, fixedly connected with buffer plate 3 between transformer body 1 and cooling cabinet housing 2, transformer body 1 lower part is supported on buffer plate 3, and cooling cabinet housing 2 is located the outside, and buffer plate 3 comprises the rubber material, and the cushioning nature between transformer body 1 and cooling cabinet housing 2 is increased through making buffer plate 3 with the rubber material in this embodiment, increases the shock attenuation effect of device.

2 outer ends of cooling cabinet shell rotate and are connected with cabinet door 4, and 4 accessible loose-leaves of cabinet door realize articulating with 2 outer ends of cooling cabinet shell, and 2 inner electric connections of cooling cabinet shell have two refrigeration pieces 5 of mutual symmetry, and the refrigeration piece is also called thermoelectric semiconductor refrigeration subassembly, indicates that one side is endothermic, and the heat conduction paster is played in the one side heat dissipation. Two refrigeration pieces 5 are located 1 left and right sides respectively, make its air cooling on every side through setting up refrigeration piece 5, reach and carry out effectual refrigerated effect to the device is inside.

Two refrigeration pieces 5 equal fixedly connected with suction plate 6 of one end that are close to each other, because refrigeration piece 5 has refrigerated effect, then locate and cold and hot alternate district around refrigeration piece 5, lead to vapor to meet cold liquefaction easily, absorb moisture through setting up suction plate 6, reduce the possibility that transformer main body 1 intake.

Two support hanger plates 7 of 2 inner fixedly connected with of cooling cabinet shell, two support hanger plates 7 all are located 5 downside of refrigeration piece and about 1 symmetry of transformer main part, two L shape arm braces 8 of 1 bottom fixedly connected with of transformer main part, two L shape arm braces 8 all are located buffer board 3 and support between hanger plate 7 and support hanger plate 7 and contact with support hanger plate 7, support hanger plate 7 and the 8 surface of L shape arm brace be the non-smooth surface, design rough surface through the contact surface that sets up at support hanger plate 7 and L shape arm brace 8 and increase the friction between support hanger plate 7 and the L shape arm brace 8, when the device received vibrations, can reach absorbing effect.

The equal fixedly connected with spring in both ends about supporting hanger plate 7, two springs include upper portion spring 91 and lower part spring 92, and the one end and the transformer body 1 fixed connection of supporting hanger plate 7 are kept away from to upper portion spring 91, and the one end and the L shape spike 8 fixed connection of supporting hanger plate 7 are kept away from to lower part spring 92 and increase the cushion nature between supporting hanger plate 7 and the L shape spike 8 through setting up the spring for the shock resistance of device increases.

The upper end of the supporting suspension plate 7 is provided with a ventilation hole 10, the inner end of the cooling cabinet shell 2 is fixedly connected with two mutually symmetrical cooling plates 11, the two cooling plates 11 are positioned above the refrigerating sheet 5, the heat inside the device is dissipated by arranging the cooling plates 11, the temperature inside the device can be reduced, and the cooling effect is achieved.

11 bottom of heating panel cuts the semicircle form recess 12 that has a plurality of evenly distributed, and 11 bottom fixedly connected with of heating panel semicircle form uplift 13 of a plurality of evenly distributed, semicircle form uplift 13 are located between per two adjacent semicircle form recesses 12, thereby increase heating panel 11's area of contact through setting up semicircle form recess 12 and semicircle form uplift 13 and forming wavy bottom surface for the radiating effect of heating panel 11 is better.

2 upper ends of cooling cabinet shell are dug and are had a plurality of evenly distributed's exhaust vent 14, two condensing tanks 15 of 2 bottom fixedly connected with of cooling cabinet shell, the cooling liquid is filled in the condensing tank 15, install air pipe 16 in the condensing tank 15, air pipe 16 run through condensing tank 15 and with 2 inside intercommunications of cooling cabinet shell, the one end fixedly connected with air-blower 17 of cooling cabinet shell 2 is kept away from to air pipe 16, can select the air-blower 17 of suitable model as required, for example: y5-47, blowing air into the device through the ventilation duct 16 by the blower 17, the air passing through the ventilation duct 16 inside the condensation box 15 and being cooled by the cooling liquid, so that the air entering the device has a cooling effect.

When the operator uses the cooling device, the following steps can be followed: firstly, with refrigeration piece 5 and power intercommunication, make refrigeration piece 5 work, and then its surrounding air temperature descends, reach refrigerated effect, secondly, use air-blower 17 to inhale the outside air of device, the air blows in the air to the device inside through air pipe 16, the air is when being located condensing box 15 inside, can be cooled down by the coolant liquid, thereby enter into the device inside, make the cold air cool down transformer main part 1 in the device, thirdly, after the cold air cooled down transformer main part 1, through heating panel 11 with the further removal of temperature, and through exhaust vent 14 eduction gear, can realize in time cooling to the oil-immersed transformer under the operating condition, reduce the inside heat of device, prolong the life of transformer simultaneously.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

Above-mentioned the utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (7)

1. The utility model provides a be used for oil-immersed transformer cooling device, its characterized in that, includes the cooling cabinet shell, the cooling cabinet shell internal fixation has the buffer board of supporting transformer main part, the cooling cabinet shell is located transformer main part both sides and is fixed with the refrigeration piece, the inner fixedly connected with two heating panels of mutual symmetry of cooling cabinet shell, and two heating panels are located refrigeration piece top.

2. The cooling device for the oil-immersed transformer according to claim 1, wherein a pair of openable cabinet doors is connected to the outer side of the cooling cabinet housing, support suspension plates are symmetrically fixed to two sides of the buffer plate in the cooling cabinet housing, an L-shaped supporting leg is fixedly connected to the bottom end of the transformer body and located between the support suspension plates and the buffer plate, the outer side surface of the L-shaped supporting leg is in contact with the support suspension plates, and the surface of the support suspension plates in contact with the L-shaped supporting leg is a non-smooth surface.

3. The oil-immersed transformer cooling device according to claim 2, wherein an upper spring and a lower spring are fixedly connected to the upper end and the lower end of the supporting suspension plate respectively, one end of the upper spring, which is far away from the supporting suspension plate, is fixedly connected to the transformer body, and one end of the lower spring, which is far away from the supporting suspension plate, is fixedly connected to the L-shaped supporting leg fixedly connected to the transformer body.

4. The oil-immersed transformer cooling device according to claim 3, wherein a plurality of semicircular grooves are uniformly formed in the bottom surface of the heat dissipation plate, a plurality of semicircular bulges are uniformly connected to the bottom surface of the heat dissipation plate, the semicircular bulges are located between every two adjacent semicircular grooves, and the semicircular grooves and the semicircular bulges are arranged to increase the contact area of the heat dissipation plate, so that the heat dissipation effect is improved.

5. The oil-immersed transformer cooling device according to claim 2, wherein the supporting suspension plate is provided with a ventilation hole, the upper end of the cooling cabinet shell is provided with a plurality of uniformly distributed air outlets, the bottom end of the cooling cabinet shell is fixedly connected with two condensation boxes, the condensation boxes are filled with cooling liquid, ventilation pipelines are installed in the condensation boxes, the ventilation pipelines penetrate through the condensation boxes and are communicated with the inside of the cooling cabinet shell, one end of the ventilation pipelines, far away from the cooling cabinet shell, is fixedly connected with an air blower, blows air into the device through the ventilation pipelines, and cools the air through the ventilation pipelines located inside the condensation boxes, so that the air entering the device has a cooling effect.

6. The cooling device for the oil-filled transformer according to claim 1, wherein a water absorption plate is fixedly connected to the inner side surface of the refrigeration sheet.

7. The oil-filled transformer cooling device according to claim 1, wherein the buffer plate is made of rubber.