CN106024302A - A wind-water cooled transformer - Google Patents

Abstract

The invention discloses an air-water cooling transformer, which comprises a transformer seat body, an iron core, a coil winding, an air cooling device and a water cooling device, wherein the coil winding is wrapped and wound on the iron core; the first base body bottom is provided with a first cooling pipeline for cooling, the second base body bottom is provided with a second cooling pipeline for cooling, and the first cooling pipeline and the second cooling pipeline are used for outputting air cooling airflow by the air cooling device or outputting water cooling liquid by the water cooling device. The invention combines the characteristics of the water-cooled transformer and the air-cooled transformer, and the air-cooled heat dissipation system is added at the periphery of the water-cooled transformer, thereby thoroughly solving the severe environment with serious water shortage corrosion and the external environment with great temperature difference, and thoroughly solving the influence of the temperature difference environment on the use of equipment.

Description

A wind-water cooled transformer

technical field

The invention relates to a transformer, in particular to a wind-water cooled transformer.

Background technique

Transformers are widely used in various technical fields of production. The transformer will undoubtedly generate heat during use. If the heat cannot be dissipated well and the transformer cannot be cooled in time, the stable operation of the transformer will be affected, and the transformer will be damaged. The cooling of existing non-encapsulated dry-type transformers mostly adopts an air-cooled heat dissipation structure. The heat emitted by the transformer coil is discharged to the outside of the transformer shell through the fan installed at the bottom or upper part of the transformer, and the heat is directly dissipated into the air around the equipment. , if the equipment is located indoors or in a place with insufficient ventilation, the ambient temperature will rise a lot, so that the transformer cannot be cooled well. In severe cases, it will affect the normal use of surrounding equipment. In order to avoid this problem, the user needs to install a special air duct to discharge the hot air to the outside, which undoubtedly increases the cost and requires a large installation space, which brings inconvenience to the field application. In some occasions with special requirements on space and environment, and when the operating temperature of the transformer is strictly required, the existing heat dissipation structure cannot meet the heat dissipation requirements.

Patent Application No. 200480043772.8 discloses a compact dry-type transformer comprising a core of magnetic material provided with a first heat sink comprising a cover having cooling fins on its outer surface . The transformer also includes a coil assembly provided with a second heat sink including a housing with cooling fins on its outer surface. The second heat sink also includes a jacket with heat pipes containing a thermodynamic liquid with a low boiling point under vacuum, such as water. A heat pipe comprising an evaporator portion and a condenser portion has cooling fins on its outer surface. The heat dissipation device of the transformer mainly dissipates heat through the evaporator and the condenser, and its structure is complex, which is not convenient for processing and manufacturing.

No. 200710134590.7 invention patent application discloses a dry-type transformer water-cooling system, which includes: a housing, a baffle is set in the housing to divide the room into a transformer room and a water-cooling system room, and a condenser and a centrifugal fan are installed in the water-cooling system room. The centrifugal fan sucks hot air into the cooling system room, and the hot air is cooled by the condenser and then converted into cold air and sent back to the transformer room. Then, due to the large space in the transformer room, there is no corresponding airflow distribution structure, the gas will circulate locally near the fan, forming a short circuit, and the low-temperature air cooled by the condenser cannot effectively contact the surface of the coil and take away heat. Therefore, a transformer cooling system capable of effectively exchanging heat between cold air and transformer coils has become a goal pursued by those skilled in the art.

Contents of the invention

In order to overcome the disadvantages of the above-mentioned prior art, the object of the present invention is to provide an air-water-cooled transformer.

In order to achieve the above object, the technical scheme adopted in the present invention is:

An air-water cooled transformer, comprising a transformer base, an iron core, a coil winding, an air cooling device and a water cooling device, the coil winding is wrapped and wound on the iron core, and the iron core and the coil winding are both arranged inside the transformer base , the transformer seat includes a first seat, a second seat mated with the first seat; the first seat includes a first seat base, and is arranged on the first seat base The first arc-shaped groove, the first center column arranged on the first arc-shaped groove, and the wire joint connection piece arranged on the upper end surface of the first center column; the second seat body includes the first Two seat body bases, a second arc-shaped groove arranged on the second seat body base, and a second center pillar arranged on the second arc-shaped groove and matched with the first center pillar; The bottom of the first seat body is provided with a first cooling pipe for cooling, and the bottom of the second seat body is provided with a second cooling pipe for cooling. The first cooling pipe and the second cooling pipe are used for the air cooling device to output air. A cold air flow or water cooling unit outputs a water cooling liquid.

The first cooling pipeline communicates with the second cooling pipeline through a pipeline connector.

The wire joint connecting piece is detachably connected to the first central column through a hexagon socket bolt.

A third cooling duct is provided on the left side of the first seat.

A fourth cooling pipe is provided on the right side of the second seat.

An insulating sheet is provided between the first base body and the second base body.

The beneficial effects of this technical solution are: the present invention combines the characteristics of the above-mentioned water-cooled transformer and air-cooled transformer, and adds an air-cooled heat dissipation system on the periphery of the water-cooled transformer, completely solving the harsh environment with severe water shortage and corrosion, and the external environment with great temperature difference , Thoroughly solve the impact of temperature difference environment on the use of equipment. In the environment where the external temperature is too high, the air-water cooling system can be used at the same time, which greatly reduces the temperature of the transformer and achieves a super heat dissipation effect. In the extremely cold weather that is easy to freeze, the external environment has restrictions on the use of transformer water cooling. The water cooling system can be stopped and the air cooling system can be used to ensure good heat dissipation of the transformer.

Description of drawings

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the three-dimensional structure schematic diagram of an embodiment of the transformer base of the present invention;

Fig. 2 is a schematic diagram of the three-dimensional structure of the first base;

3 is a schematic diagram of a three-dimensional structure of a second seat;

Fig. 4 is a schematic cross-sectional structure diagram of the second base.

detailed description

As shown in Figures 1-4, it is an air-water-cooled transformer of the present invention, including a transformer base, an iron core, a coil winding, an air cooling device and a water cooling device (not shown), and the coil winding is wrapped and wound on On the iron core, the iron core and the coil windings are all arranged inside the transformer base. The first cooling pipe 13 and the second cooling pipe 23 are used for the air cooling device to output air-cooled air flow or the water cooling device to output water-cooled liquid. The working mechanism For: In the environment where the external temperature is too high, the air-water cooling device can be used at the same time, which greatly reduces the temperature of the transformer and achieves a super heat dissipation effect. In the extremely cold weather that is easy to freeze, the external environment restricts the use of transformer water cooling. The water cooling device can be stopped and the air cooling device can be used to ensure good heat dissipation of the transformer.

The transformer base includes a first base 1 and a second base 2 mated with the first base 1; the first base 1 includes a first base 11 and a The first arc groove 16, the first center column 14 arranged on the first arc groove 16, the wire connector connector 15 arranged on the upper end surface of the first center column 14; the second seat body 2 includes a second Base body 21, the second arc-shaped groove 25 provided on the second seat base body 21, the second center column 24 matched with the first center column 14 on the second arc-shaped groove 25; The bottom of the base body 1 is provided with a first cooling pipe 13 for cooling, and the bottom of the second base body 2 is provided with a second cooling pipe 23 for cooling. The first central column 14 is integrally formed with the first base body 11, and the second central column 24 is integrally formed with the second base base 21, which facilitates the processing of the transformer base and ensures the stability and safety of the transformer during use. .

The first central column 14 is a semi-cylindrical body, and the second central column 24 is a semi-cylindrical body matched with the first central column 14, which facilitates the installation of the iron core and the primary winding. The wire joint connector 15 includes a cylinder and a bump that is arranged on the lower end surface of the wire connector 15 and matches with the first center column 14. The bump is a semi-cylindrical body equal in diameter to the cylinder, and the cylinder and the bump adopt The one-piece molding process is convenient for processing, and the lower end surface of the cylinder is higher than the second center column 24 through the protrusion, so as to ensure that the wire joint connector does not directly contact the second center column. The general transformer cooling method is to set up water-cooled or oil-cooled pipes on the side of the first base 1 and the second base 2, which will lead to poor heat dissipation in the middle of the bottom of the transformer, resulting in excessive local temperature, which is easy to cause In case of damage to the transformer, the first cooling pipeline 13 and the second cooling pipeline 23 provided by the present invention are located in the middle of the bottom of the transformer base, which can rapidly cool down the middle of the bottom of the transformer during use and improve the service life of the transformer.

The first cooling pipeline 13 communicates with the second cooling pipeline 23 through the pipeline connector, and the first cooling pipeline 13 and the second cooling pipeline 23 are respectively through holes passing through the first base body 1 and the second base body 2, so that The bottom of the transformer is cooled more fully, and the blockage of the first cooling pipe 13 and the second cooling pipe 13 can be regularly checked through the connection of the pipe joint to ensure the normal operation of the cooling system. Certainly, the first cooling pipeline 13 and the second cooling pipeline 23 can be designed as separate cooling pipelines according to actual usage; Design, specifically refer to the U-shaped pipeline design of the fourth cooling pipeline 22 in FIG. 4 , and are not limited to the connection through the pipeline joints in the preferred embodiment.

The wire joint connector 15 is detachably connected to the first center column 14 through the hexagon socket head bolt, and the hexagon socket head bolt can be fixed to avoid the adverse effect caused by the protrusion of the bolt head. Of course, the connection method of the wire connector connector can also be connected by flat head bolts Other connecting parts that do not protrude, and are not limited to the hexagon socket bolt connection in the preferred embodiment.

A third cooling channel 12 is provided on the left side of the first base body 1 , and a fourth cooling channel 22 is provided on the right side of the second base body 2 . The fourth cooling pipe 22 is U-shaped inside the second base body 2 and is cooled through a liquid inlet and a liquid water port on the side, see FIG. 4 for details. The third cooling pipe 12 is U-shaped inside the first seat, and it is cooled by a liquid inlet and a liquid water port located on the side. For details, refer to the design of the fourth cooling pipe 22, through the third cooling passage 12 and the fourth cooling channel 22 can reduce the temperature on both sides of the transformer and prevent the transformer from being damaged due to excessive temperature.

An insulating sheet is provided between the first seat body 1 and the second seat body 2, and the direct contact between the first seat body 1 and the second seat body 2 is prevented by the insulating sheet, so as to ensure the normal use of the transformer.

The first arc-shaped groove 16 and the second arc-shaped groove 25 cooperate to form an accommodating groove for accommodating the iron core and the primary winding, and the first arc-shaped groove 16 and the second arc-shaped groove 25 are all of the same radius. groove, which is convenient for the cooperation of the first seat body and the second seat body, and also facilitates the installation of the iron core and the primary winding. Of course, the shapes of the first arc-shaped groove 16 and the second arc-shaped groove 25 can be adjusted according to the actual situation. It is necessary to make corresponding changes to adapt to the requirements of the transformer.

In summary, the present invention combines the characteristics of the above-mentioned water-cooled transformer and air-cooled transformer, and adds an air-cooled heat dissipation system on the periphery of the water-cooled transformer, completely solving the harsh environment with severe water shortage and corrosion, and the external environment with great temperature difference. The influence of temperature difference environment on the use of equipment. In the environment where the external temperature is too high, the air-water cooling system can be used at the same time, which greatly reduces the temperature of the transformer and achieves a super heat dissipation effect. In the extremely cold weather that is easy to freeze, the external environment has restrictions on the use of transformer water cooling. The water cooling system can be stopped and the air cooling system can be used to ensure good heat dissipation of the transformer. By arranging the detachable wire connector connector on the upper end surface of the first central column, the surface area can be increased, the output of current can be improved, and more wire connectors can be connected at the same time. Through the first cooling pipeline and the second cooling pipeline respectively set up at the bottom of the first base and the base of the second base, the heat dissipation effect of the transformer is better, and the service life of the transformer is improved. The structure of the present invention is simple and no external cooling device is required. The problem of high manufacturing cost of the transformer can be solved.

The above descriptions are only preferred implementations of the present invention, and the present invention is not limited to the above-mentioned implementations, as long as the technical solutions that achieve the purpose of the present invention by basically the same means fall within the protection scope of the present invention.

Claims (6)

1. a wind water cooling transformator, it is characterised in that: include transformer base, iron core, coil windings, air cooling equipment and water-cooled Device, described coil windings parcel is around being located on iron core, and described iron core and coil windings are arranged at inside transformer base, should Transformer base includes the second pedestal that the first pedestal is connected with described First mates；Described first pedestal includes One pedestal matrix, the first arc groove being located on described first pedestal matrix, be located on described first arc groove first Center pillar, the power lug connector being located on described first center pillar upper surface；Described second pedestal includes the second pedestal matrix, sets The second arc groove on described second pedestal matrix, it is located on described second arc groove and matches with described first center pillar The second center pillar；It is provided with the first cooling pipe for cooling bottom described first pedestal, bottom described second pedestal, is provided with use Air-cooled air-flow or water is exported for air cooling equipment in the second cooling pipe of cooling, this first cooling pipe and the second cooling pipe Device for cooling output aqueous cooling liquid.

A kind of wind water cooling transformator the most according to claim 1, it is characterised in that: described first cooling pipe and described the Two cooling pipes are connected by Petrochemical Pipe Joints.

A kind of wind water cooling transformator the most according to claim 1, it is characterised in that: described power lug connector is by interior Hex bolts is detachably connected on described first center pillar.

A kind of wind water cooling transformator the most according to claim 1, it is characterised in that: described first pedestal left surface is provided with the Three cooling pipes.

A kind of wind water cooling transformator the most according to claim 1, it is characterised in that: described second pedestal right flank is provided with the Four cooling pipes.

A kind of wind water cooling transformator the most according to claim 1, it is characterised in that: described first pedestal and described second Insulating trip it is provided with between body.