Oil immersed transformer oil tankTechnical Field
The invention relates to the technical field of transformers, in particular to an oil immersed transformer oil tank.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, the main components are a primary coil, a secondary coil and an iron core (magnetic core), and the transformer is important equipment in power construction at present and is widely erected in various places in China; the oil immersed transformer is a box type transformer which takes mineral oil as main insulating medium and cooling medium of the transformer, the main body element of the transformer is immersed in an oil tank filled with mineral oil, and a connecting terminal is led out from the top of an oil tank cover.
The existing oil immersed transformer oil tank can radiate heat through the radiating fins, however, oil in the oil tank cannot flow, so that the internal temperature is uneven, and the radiating effect is affected.
Disclosure of Invention
The invention aims at: in order to solve the problems, an oil tank of an oil immersed transformer is provided.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the oil immersed transformer oil tank comprises a tank body, wherein a plurality of groups of radiating fins are arranged on the outer wall of the tank body, a tank cover is arranged at the upper end of the tank body, and a radiating device is fixedly arranged on the outer wall of the tank body;
The heat dissipation device comprises a shell and an oil guide pipe assembly, a first heat conduction plate is arranged in the shell, close to one side wall in the box, a second heat conduction plate is arranged in the shell, far away from one side wall in the box, a movable assembly is arranged between the first heat conduction plate and the second heat conduction plate, power conversion assemblies matched with the oil guide pipe assembly are respectively arranged at two ends of the movable assembly, a corrugated pipe matched with the oil guide pipe assembly is arranged at one end of the second heat conduction plate, and a reset spring matched with one of the power conversion assemblies is arranged at the other end of the second heat conduction plate.
Further, the power conversion assembly comprises a first shell, a rotating shaft connected with the first shell in a rotating mode, a first gear matched with the movable assembly and a second gear matched with the oil guide pipe assembly, and the first gear and the second gear are fixedly installed on the outer wall of the rotating shaft.
Further, the movable assembly comprises a second shell, a first air cavity is arranged in the middle of the second shell, piston cavities are respectively arranged at two ends of the first air cavity, pistons are respectively arranged in the two piston cavities in a sliding mode, a guide rod is arranged at one end, far away from the first air cavity, of each piston in a pressing mode, a first tooth slot matched with a first gear is arranged on the outer wall of each guide rod, the guide rod is in sliding connection with the second shell, the guide rod is in sliding connection with the first shell, a first magnet matched with a first heat-conducting plate and a second heat-conducting plate is arranged on the outer wall of the second shell, gas, liquid or a gas-liquid mixture is filled in the first air cavity according to actual needs, and the guide rod can be a long-strip-shaped solid fixed between the two pistons in a heating expansion mode.
Further, lead oil pipe subassembly and constitute by feed liquor pipe, cooling tube and drain pipe, the second tooth's socket that cooperation second gear used has been seted up respectively to feed liquor pipe and drain pipe outer wall, feed liquor pipe and drain pipe and first casing sliding connection, the length and the angle that feed liquor pipe and drain pipe are located the box inside can be adjusted according to actual need.
Further, bellows one end is installed in one side of one of them first casing, the bellows other end is provided with the mount table, mount table and shell fixed connection, the inside of mount table is provided with oil inlet chamber and oil outlet chamber, oil inlet chamber and oil outlet intracavity portion are provided with the check valve respectively, oil inlet chamber and feed liquor pipe intercommunication, oil outlet chamber and cooling tube intercommunication.
Further, the first heat-conducting plate and the outer wall of the second heat-conducting plate are respectively fixedly provided with a heat-conducting rod, the outer walls of the other sides of the first heat-conducting plate and the second heat-conducting plate are respectively provided with a second magnet matched with the first magnet, and the outer walls of the heat-conducting rods are fixedly provided with a plurality of heat-conducting wires.
Further, a U-shaped flow guide cavity is formed in the second heat conducting plate, one end of the U-shaped flow guide cavity is communicated with the radiating pipe, and the other end of the U-shaped flow guide cavity is communicated with the liquid outlet pipe.
Compared with the prior art, the invention has the following beneficial effects:
According to the invention, the power conversion assemblies at two ends are driven to move by the movable assemblies which reciprocate, and the power conversion assemblies drive the corrugated pipe to stretch out and draw back, so that grease in the oil guide pipe assembly can be pushed to flow, and the grease in the box body is driven to flow, so that the cooling effect is improved.
Drawings
Fig. 1 is an appearance diagram of an oil tank of an oil immersed transformer provided by the invention;
Fig. 2 is a schematic structural diagram of a heat dissipating device of an oil tank of an oil immersed transformer according to the present invention;
Fig. 3 is a schematic structural diagram of a movable assembly of an oil tank of an oil immersed transformer;
Fig. 4 is a schematic structural diagram of a power conversion assembly of an oil tank of an oil immersed transformer according to the present invention;
Fig. 5 is a schematic diagram illustrating communication between a bellows and an oil guide pipe assembly of an oil tank of an oil immersed transformer according to the present invention.
In the figure: 1. a case; 2. a case cover; 3. a heat radiation fin; 4. a heat sink; 401. a housing; 402. a first heat-conducting plate; 403. a movable assembly; 4031. a second housing; 4032. a first air chamber; 4033. a piston chamber; 4034. a piston; 4035. a guide rod; 404. a power conversion assembly; 4041. a first housing; 4042. a first gear; 4043. a second gear; 4044. a rotating shaft; 405. a bellows; 4051. an oil outlet cavity; 4052. an oil inlet cavity; 4053. a mounting table; 406. a second heat-conducting plate; 4061. a U-shaped flow guide cavity; 407. a return spring; 408. an oil conduit assembly; 4081. a liquid inlet pipe; 4082. a heat radiating pipe; 4083. a liquid outlet pipe; 409. a heat conduction rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-5, an oil immersed transformer oil tank comprises a tank body 1, wherein a plurality of groups of radiating fins 3 are arranged on the outer wall of the tank body 1, a tank cover 2 is arranged at the upper end of the tank body 1, and a radiating device 4 is fixedly arranged on the outer wall of the tank body 1;
The heat dissipation device 4 comprises a shell 401 and an oil guide pipe assembly 408, a first heat conduction plate 402 is arranged on one side wall, close to the inside of the box body 1, of the shell 401, a second heat conduction plate 406 is arranged on one side wall, far away from the inside of the box body 1, of the shell 401, a movable assembly 403 is arranged between the first heat conduction plate 402 and the second heat conduction plate 406, power conversion assemblies 404 matched with the oil guide pipe assembly 408 are respectively arranged at two ends of the movable assembly 403, a corrugated pipe 405 matched with the oil guide pipe assembly 408 is arranged at one end of the second heat conduction plate 406, a reset spring 407 matched with one of the power conversion assemblies 404 is arranged at the other end of the second heat conduction plate 406, and the movable assembly 403 is prevented from moving between the first heat conduction plate 402 and the second heat conduction plate 406 through the reset spring 407.
Further, the power conversion assembly 404 is composed of a first housing 4041, a rotating shaft 4044 rotatably connected to the first housing 4041, a first gear 4042 used with the movable assembly 403, and a second gear 4043 used with the oil conduit assembly 408, wherein the first gear 4042 and the second gear 4043 are fixedly mounted on the outer wall of the rotating shaft 4044.
Further, the movable component 403 includes a second housing 4031, a first air cavity 4032 is provided in the middle of the second housing 4031, two ends of the first air cavity 4032 are respectively provided with a piston cavity 4033, two interiors of the two piston cavities 4033 are respectively provided with a piston 4034 in a sliding manner, one end of the piston 4034 far away from the first air cavity 4032 is provided with a guide rod 4035, a first tooth slot matched with the first gear 4042 is provided on the outer wall of the guide rod 4035, the guide rod 4035 is in sliding connection with the second housing 4031, the guide rod 4035 is in sliding connection with the first housing 4041, a first magnet matched with the first heat-conducting plate 402 and the second heat-conducting plate 406 is mounted on the outer wall of the second housing 4031, and the interior of the first air cavity 4032 is filled with gas, liquid or a gas-liquid mixture according to actual needs, or a long-strip-shaped solid which is fixed between the two pistons 4034 and is expanded by heating.
Further, the oil guide pipe assembly 408 is composed of a liquid inlet pipe 4081, a heat dissipation pipe 4082 and a liquid outlet pipe 4083, second tooth grooves matched with the second gear 4043 in use are respectively formed in the outer walls of the liquid inlet pipe 4081 and the liquid outlet pipe 4083, the liquid inlet pipe 4081 and the liquid outlet pipe 4083 are slidably connected with the first shell 4041, and the length and the angle of the liquid inlet pipe 4081 and the liquid outlet pipe 4083 inside the box body 1 can be adjusted according to actual needs.
Further, one end of the bellows 405 is mounted on one side of one of the first shells 4041, the other end of the bellows 405 is provided with a mounting table 4053, the mounting table 4053 is fixedly connected with the housing 401, an oil inlet cavity 4052 and an oil outlet cavity 4051 are arranged in the mounting table 4053, one-way valves are respectively arranged in the oil inlet cavity 4052 and the oil outlet cavity 4051, the oil inlet cavity 4052 is communicated with the liquid inlet pipe 4081, and the oil outlet cavity 4051 is communicated with the radiating pipe 4082.
Further, the outer walls of the first heat-conducting plate 402 and the second heat-conducting plate 406 are respectively and fixedly provided with a heat-conducting rod 409, the outer walls of the other sides of the first heat-conducting plate 402 and the second heat-conducting plate 406 are respectively provided with a second magnet matched with the first magnet, and the outer walls of the heat-conducting rods 409 are fixedly provided with a plurality of heat-conducting wires.
Further, a U-shaped flow guiding cavity 4061 is formed in the second heat conducting plate 406, one end of the U-shaped flow guiding cavity 4061 is communicated with the radiating tube 4082, and the other end of the U-shaped flow guiding cavity 4061 is communicated with the liquid outlet tube 4083.
Working principle: when the oil cooling device is used, the temperature inside the box body 1 is guided to the first heat conducting plate 402 through the heat conducting rod 409, the first heat conducting plate 402 can guide the temperature to the movable component 403, gas inside the first gas cavity 4032 is heated and expanded, when the gas pressure inside the first gas cavity 4032 reaches a certain value, the gas expansion inside the first gas cavity 4032 can push the two pistons 4034 to move, the two pistons 4034 push the guide rod 4035 to move, the guide rod 4035 drives the first gear 4042 to rotate, the first gear 4042 drives the second gear 4043 to rotate through the rotating shaft 4044, the second gear 4043 can move along the second tooth grooves of the outer walls of the liquid inlet pipe 4081 and the liquid outlet pipe 4083, but the movable component 403 can move only when the gas inside the first gas cavity 4032 is expanded to a certain pressure, the movable component 403 can move to the second heat conducting plate 406, the first magnet on the outer wall of the second housing 4031 can be in a way contacted with the second magnet on the outer wall of the second heat conducting plate 406, the oil cooling device can move along the second tooth grooves of the outer wall of the liquid inlet pipe 4081 and the outer wall of the liquid outlet pipe 4083, and the oil cooling device can be cooled down by the oil cooling device can be driven by the oil cooling device, and the oil cooling device can flow through the oil cooling device can be cooled by the heat conducting device, and the oil cooling device can be cooled by the oil flowing inside the oil cooling device, and the oil can be cooled by the oil flowing in the oil can be cooled by the oil.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.