CN114360856B

CN114360856B - Three-phase oil-immersed transformer

Info

Publication number: CN114360856B
Application number: CN202111618246.1A
Authority: CN
Inventors: 李永全; 彭香平; 王新芝; 吴秀梅; 朱建交
Original assignee: Xuzhou Bense Electric Power Equipment Technology Co ltd
Current assignee: Xuzhou Bense Electric Power Equipment Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2023-04-11
Anticipated expiration: 2041-12-27
Also published as: CN114360856A

Abstract

The invention discloses a three-phase oil-immersed transformer which comprises a transformer body, wherein a detection port is formed in one side of the transformer body, radiating fins are installed in the detection port, two groups of sliding grooves are symmetrically formed in two sides of the detection port, each radiating fin comprises a side plate, a transverse plate, a swinging plate and a swinging mechanism, the side plates are respectively provided with two groups of side plates and are symmetrically installed on two sides of the detection port, the transverse plates are horizontally installed at the tops of the two groups of side plates, the swinging plates are respectively provided with a plurality of groups of swinging plates and are uniformly arranged between the two groups of side plates, the tops of the swinging plates are positioned below the transverse plates, the swinging mechanism comprises a first rotating disc and a second rotating disc, the first rotating disc and the second rotating disc are respectively and movably installed on the two groups of side plates, a driving motor is installed at the lower end of the first rotating disc, and the power output end of the driving motor is connected with the bottom of the first rotating disc. When the device needs to rapidly dissipate heat, the swing mechanism and the heat dissipation roller are automatically opened to dissipate heat, so that the automation and intelligence degree of the device are improved.

Description

Three-phase oil-immersed transformer

Technical Field

The invention relates to the technical field of transformers, in particular to a three-phase oil-immersed transformer.

Background

A Transformer (Transformer) is a device that changes an alternating-current voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like, and the transformers can be classified into: the transformer is a basic device for power transmission and distribution, and is widely applied to the fields of industry, agriculture, traffic, urban communities and the like. About 1700 thousands of transformers run on the network in China, and the total capacity is about 110 hundred million volt-ampere. The transformer loss accounts for about 40% of the power loss of power transmission and distribution, and has great energy-saving potential. In order to accelerate the popularization and application of high-efficiency energy-saving transformers, improve the utilization efficiency of energy resources, and promote the development of green, low carbon and high quality, in 1 month 2021, the ministry of industry and informatization, the general bureau of market supervision and energy agency, and the national energy agency jointly make "transformer energy efficiency improvement plan (2021-2023"), wherein a three-phase oil-immersed transformer belongs to one type of transformer, the three-phase oil-immersed transformer adopts a fully-oil-filled sealed corrugated oil tank shell, and is a permanently-sealed oil tank by adapting the expansion of oil elastically, and the oil-immersed transformer is widely applied to various power distribution equipment.

However, the conventional three-phase oil-immersed transformer has the following problems in the use process: (1) The shell of the three-phase oil-immersed transformer is provided with the heat dissipation plate, the heat inside the transformer is transferred to the outer surface in a heat conduction mode, and the heat is conducted outside through external air flow, although the design mode has a heat dissipation function, the heat dissipation efficiency is low, when the transformer works continuously, the situation of difficult heat dissipation is easy to occur, and the automation and the intelligent degree of heat dissipation are low; (2) Install in external transformer, in order to guarantee the leakproofness of transformer, the shell of transformer is mostly seal structure, and such design is not convenient for the staff to the maintenance of the inside components and parts of transformer. For this reason, a corresponding technical scheme needs to be designed to solve the existing technical problems.

Disclosure of Invention

The invention aims to provide a three-phase oil-immersed transformer, which solves the technical problems that a shell of the three-phase oil-immersed transformer is provided with a heat dissipation plate, heat inside the transformer is transferred to the outer surface in a heat conduction mode, and the heat is conducted outside through the flow of outside air, although the design mode has a heat dissipation function, the heat dissipation efficiency is low, when the transformer works continuously, the situation of difficult heat dissipation is easy to occur, and the automation and the intelligence degree of heat dissipation are low.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a three-phase oil-immersed transformer, includes the transformer body, detection mouth has been seted up to one side of transformer body, install fin and bilateral symmetry in the detection mouth and seted up two sets of spouts, the fin comprises curb plate, diaphragm, swing piece and swing mechanism, the curb plate divide be equipped with two sets of and symmetry install in the both sides of detecting the mouth, diaphragm horizontal installation is in the top of two sets of curb plates, the swing piece divide be equipped with a plurality of groups and evenly place in between two sets of curb plates, a plurality of groups the top of swing piece is located the below of diaphragm, swing mechanism includes rolling disc one and rolling disc two, rolling disc one and rolling disc two are movable mounting respectively on two sets of curb plates, driving motor is installed to the lower extreme of rolling disc one, driving motor's power take off end is connected with the bottom of rolling disc one, the both ends of diaphragm are connected with rolling disc one, rolling disc two off-centre, the activity is provided with a plurality of groups pull rod on the diaphragm, a plurality of groups the lower extreme and a plurality of groups swing piece are connected one-by-one, all be provided with extension mechanism in two sets of spouts, the outer end of extension mechanism is connected with the fin, the inside of transformer body still is provided with the temperature sensor, the temperature sensor circuit controller body is installed in the transformer body outside.

In a preferred embodiment of the present invention, the swinging piece has an inner end provided with an inlet port and an outer end provided with an outlet port, a heat dissipating chamber is provided between the inlet port and the outlet port, a heat dissipating roller is installed in the inlet port, and a heat dissipating head is installed in the outlet port.

In a preferred embodiment of the present invention, the introduction port has a trumpet-like structure and an outer end diameter is larger than an inner end diameter.

As a preferred embodiment of the present invention, the heat dissipation roller includes two sets of mounting plates disposed symmetrically up and down and a roller body vertically mounted between the two sets of mounting plates, a micro motor is mounted on the mounting plate above, a power output end of the micro motor is connected to the roller body, and three sets of fan blades are uniformly mounted on the roller body.

As a preferred embodiment of the present invention, the outer end of the heat dissipation head is of a slope structure, and an exhaust cavity is formed inside the heat dissipation head, wherein a filter cartridge is installed inside the exhaust cavity, and the outer end of the exhaust cavity is movably connected with a cover plate through a hinge.

In a preferred embodiment of the present invention, a dust collection cavity is formed in the filter cylinder, a rotor blade is spirally mounted on the surface of the filter cylinder, a plurality of groups of dirt inlets are equidistantly formed on the surface of the filter cylinder, and filter cotton is filled in the dust collection cavity.

As a preferred embodiment of the present invention, the stretching mechanism includes an electric push rod and a connecting rod mounted at a lower end of the electric push rod, two sets of pulling plates are rotatably connected to the connecting rod, inner ends of the two sets of pulling plates are located in the sliding groove, and outer ends of the two sets of pulling plates are rotatably connected to the side surface of the heat sink.

As a preferred embodiment of the present invention, a runner port is formed between two adjacent sets of the swing pieces, and the width of the runner port is equal to half of the distance between two adjacent sets of the swing pieces.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention optimizes the heat dissipation structure of the three-phase oil-immersed transformer, designs the heat dissipation fins arranged on the shell into a movable design mode, designs the swing mechanism above the heat dissipation fins, can realize the left-right swing of the heat dissipation fins through the swing mechanism, and can guide the internal heat into the heat conduction cavity channel and dissipate the heat by matching with the heat conduction cavity channel in the heat dissipation fins and the heat dissipation rollers positioned at the inner ends, thereby greatly improving the heat dissipation efficiency of the heat dissipation fins, and the heat dissipation fins are in a sealed state in a conventional state.

2. According to the invention, the detection port is reserved at the mounting position of the radiating fin and matched with the extending mechanisms at two sides of the radiating fin, when the interior of the transformer needs to be maintained, the extension mechanism can be used for one-click opening, so that the difficulty in maintaining the transformer is greatly reduced.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a view of the construction of the swing mechanism of the present invention;

FIG. 3 is a top view of the mounting of the wobble plate of the present invention;

FIG. 4 is a schematic view of the mounting of the thermal head of the present invention;

FIG. 5 is a view of the heat sink structure of the present invention;

fig. 6 is a view showing the construction of the filter cartridge according to the present invention.

In the figure: 1. a transformer body; 2. a detection port; 3. a heat sink; 4. a chute; 5. a side plate; 6. a transverse plate; 7. a swinging piece; 8. a swing mechanism; 9. rotating a first disc; 10. a second rotating disc; 11. a drive motor; 12. a pull rod; 13. an extension mechanism; 14. a temperature sensor; 15. a controller; 16. an inlet port; 17. a lead-out port; 18. a heat dissipation inner cavity; 19. a heat dissipating roller; 20. a heat dissipation head; 21. mounting a plate; 22. a roller body; 23. a micro motor; 24. a fan blade; 25. an exhaust cavity port; 26. a filter cartridge; 27. a cover plate; 28. a dust collection inner cavity; 29. a rotating blade; 30. a sewage inlet; 31. filtering cotton; 32. an electric push rod; 33. a connecting rod; 34. pulling a plate; 35. and a runner port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a three-phase oil-immersed transformer, including transformer body 1, detection mouth 2 has been seted up to one side of transformer body 1, detection mouth 2 installs fin 3 and bilateral symmetry in having seted up two sets of spout 4, fin 3 is by curb plate 5, diaphragm 6, swing piece 7 and swing mechanism 8 are constituteed, curb plate 5 divides to be equipped with two sets of and the symmetry installs in the both sides of detection mouth 2, diaphragm 6 horizontal installation is at the top of two sets of curb plates 5, swing piece 7 divides to be equipped with a plurality of groups and evenly places in between two sets of curb plates 5, the top of a plurality of groups swing piece 7 is located the below of diaphragm 6, swing mechanism 8 includes rolling disc one 9 and rolling disc two 10, rolling disc one 9 and rolling disc two 10 are movable mounting respectively on two sets of curb plates 5, driving motor 11 is installed to the lower extreme of rolling disc one 9, the power take off terminal of driving motor 11 is connected with the bottom of rolling disc one 9, the both ends of diaphragm 6 and rolling disc one 9, rolling disc two 10 eccentric connections, the activity is provided with a plurality of groups pull rod 12 on diaphragm 6, the lower extreme and a plurality of groups pull rod 7 are connected with the symmetry one, all extend in the two sets of swing piece 4, all be provided with the spout 13 outer ends of rolling disc 13, the sensor 13 is connected in transformer body of transformer, the sensor control mechanism of the transformer body of the sensor 13 is still is connected with the temperature controller 15 outside of sensor 15 outside, the transformer body of the transformer body, the transformer body is connected with the sensor 15, the sensor 1, the sensor 15.

In embodiment 2, as shown in fig. 3, the technical solution of this embodiment is that the swinging plate 7 is mounted on the transformer body 1, an inner end of the swinging plate 7 is provided with an inlet 16 and an outer end is provided with an outlet 17, a heat dissipation cavity 18 is formed between the inlet 16 and the outlet 17, a heat dissipation roller 19 is mounted in the inlet 16, and a heat dissipation head 20 is mounted in the outlet 17, so that the design mode is convenient for hot air inside the transformer body 1 to be introduced into the inlet 16 through the heat dissipation roller 19 and to be externally discharged through the heat dissipation cavity 18 and the outlet 17, thereby achieving a better heat dissipation purpose.

The lead-in port 16 is in a trumpet-shaped structure, and the caliber of the outer end is larger than that of the inner end, so that the design mode is convenient for the hot gas in the transformer body 1 to be dispersed outwards.

Embodiment 3, as shown in fig. 3, the technical scheme of this embodiment is a heat dissipation roller 19 installed on the transformer body 1, the heat dissipation roller 19 includes two sets of mounting plates 21 that are disposed vertically symmetrically and a roller body 22 that is installed vertically between the two sets of mounting plates 21, a micro motor 23 is installed on the mounting plate 21 that is located above, a power output end of the micro motor 23 is connected with the roller body 22, three sets of blades 24 are installed on the roller body 22 uniformly, the roller body 22 is driven to rotate by the micro motor 23, the roller body 22 drives the blades 24 to rotate synchronously in the rotating process, so that hot air inside the transformer body 1 flows into the inlet 16 and is discharged through the heat dissipation inner cavity 18.

Embodiment 4, as shown in fig. 4, 5, and 6, the technical solution of this embodiment is a heat dissipation head 20 installed on the transformer body 1, an outer end of the heat dissipation head 20 is in a slope structure, an exhaust cavity 25 is formed inside the heat dissipation head, a filter cartridge 26 is installed inside the exhaust cavity 25, and a cover plate 27 is movably connected to an outer end of the exhaust cavity 25 through a hinge.

The dust collection inner cavity 28 is formed in the filter cylinder 26, the rotating blades 29 are spirally arranged on the surface of the filter cylinder 26, a plurality of groups of dirt inlet openings 30 are formed in the surface of the filter cylinder 26 at equal intervals, filter cotton 31 is filled in the dust collection inner cavity 28, dust blocked on the rotating blades 29 can be guided into the dirt inlet openings 30 below through the dirt inlet openings 30 and is adsorbed through the filter cotton 31, and the possibility that external dust enters the interior of the transformer body 1 through the exhaust cavity opening 25 is reduced.

Embodiment 5, as shown in fig. 1, the technical scheme of this embodiment is for installing extension mechanism 13 on above-mentioned transformer body 1, extension mechanism 13 includes electric putter 32 and installs in the connecting rod 33 of electric putter 32 lower extreme, it is connected with two sets of arm-tie 34 to rotate on connecting rod 33, the inner of two sets of arm-tie 34 is located spout 4 and the outer end rotates with the side of fin 3 to be connected, when needing to overhaul transformer body 1 inside, the staff can open electric putter 32, electric putter 32 promotes connecting rod 33 and moves down and drive arm-tie 34 and extend downwards and make fin 3 expand, be convenient for overhaul the processing through detecting mouthful 2 to transformer body 1 inside.

Specifically, a runner port 35 is formed between two adjacent sets of the swing pieces 7, and the width of the runner port 35 is equal to half of the distance between the two adjacent sets of the swing pieces 7, so that the swing pieces 7 can swing left and right conveniently.

When in use: when the working temperature in the transformer body 1 is too high, the temperature sensor 14 transmits a signal to the controller 15, the controller 15 controls the driving motor 11 on the swing mechanism 8 to drive the first rotating disc 9 to rotate, the first rotating disc 9 drives the transverse plate 6 to move left and right in the rotating process, the transverse plate 6 drives the swing sheet 7 below to swing through the pull rod 12 in the left and right moving process, so that the air flow at the periphery of the radiating fin 3 is increased, the roller body 22 is driven to rotate through the micro motor 23, the fan blades 24 are driven to synchronously rotate in the rotating process of the roller body 22, so that hot air in the transformer body 1 flows into the guide inlet 16 and is discharged out through the radiating inner cavity 18, dust blocked on the rotating blades 29 can be guided into the lower dirt inlet 30 through the dirt inlet 30 in the air flowing process through the dirt inlet 30 and is adsorbed through the filter cotton 31, and the possibility that the external dust enters the transformer body 1 through the air outlet 25 is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a three-phase oil-immersed transformer, includes transformer body (1), its characterized in that: the transformer comprises a transformer body (1), a detection port (2) is formed in one side of the transformer body (1), cooling fins (3) are arranged in the detection port (2), two groups of sliding grooves (4) are symmetrically formed in two sides of the detection port (2), the cooling fins (3) are composed of side plates (5), transverse plates (6), swinging plates (7) and swinging mechanisms (8), the side plates (5) are respectively provided with two groups and are symmetrically arranged on two sides of the detection port (2), the transverse plates (6) are horizontally arranged at the tops of the two groups of side plates (5), the swinging plates (7) are respectively provided with a plurality of groups and are uniformly arranged between the two groups of side plates (5), the tops of the swinging plates (7) of the plurality of groups are positioned below the transverse plates (6), the swinging mechanisms (8) comprise a first rotating disc (9) and a second rotating disc (10), the first rotating disc (9) and the second rotating disc (10) are respectively and movably arranged on the two groups of side plates (5), a driving motor (11) is arranged at the lower end of the first rotating disc (9), the driving motor (11) is connected with a first rotating disc (9), the two groups of the rotating disc (6), and a plurality of rotating disc (12) are symmetrically connected with a plurality of sliding rods (12), and a plurality of sliding rods (12) which are arranged on the two groups, the transformer is characterized in that extension mechanisms (13) are arranged in the two groups of chutes (4), the outer ends of the extension mechanisms (13) are connected with the radiating fins (3), temperature sensors (14) are further arranged inside the transformer body (1), the temperature sensors (14) are connected with a controller (15) through lines, the controller (15) is installed on the outer side of the transformer body (1), an inlet (16) is formed in the inner end of the swinging piece (7), a guide outlet (17) is formed in the outer end of the swinging piece, a radiating inner cavity (18) is formed between the inlet (16) and the guide outlet (17), a radiating roller (19) is installed in the inlet (16), a radiating head (20) is installed in the guide outlet (17), the inlet (16) is of a horn-shaped structure, the caliber of the outer end of the inlet is larger than that of the inner end, the radiating roller (19) comprises two groups of mounting plates (21) which are symmetrically arranged up and down, a roller body (22) which is vertically installed between the two groups of mounting plates (21), micro motors (23) are installed on the mounting plates (21) above the roller body, the micro motors (23) are connected with the power output ends of the micro motors (22), three groups of the blades (22), three groups of the micro motors (24) are evenly installed on the roller body, and three groups of the inner bevel structures are formed by the inner bevel structures of the inner ports (25), exhaust accent (25) internally mounted has a section of thick bamboo (26) and outer end to have apron (27) through hinge swing joint, the inside of straining a section of thick bamboo (26) is formed with collection dirt inner chamber (28) and the surface is the heliciform and installs rotor blade (29), the surperficial equidistance of straining a section of thick bamboo (26) has been seted up a plurality of groups and has been advanced dirty mouthful (30), the inside packing of collection dirt inner chamber (28) has filter pulp (31), extend mechanism (13) and include electric putter (32) and install connecting rod (33) in electric putter (32) lower extreme, it is connected with two sets of arm-tie (34) to rotate on connecting rod (33), and is two sets of the inner of arm-tie (34) is located spout (4) and the side rotation of outer end and fin (3) is connected.

2. The three-phase oil-filled transformer according to claim 1, wherein: a runner port (35) is formed between the two adjacent groups of the swinging pieces (7), and the width of the runner port (35) is equal to half of the distance between the two adjacent groups of the swinging pieces (7).