CN110706878B

CN110706878B - Voltage transformer removes magnetism protective structure

Info

Publication number: CN110706878B
Application number: CN201911103081.7A
Authority: CN
Inventors: 蔡丰和
Original assignee: Zhejiang Quanruiben Technology Co ltd
Current assignee: Zhejiang Quanruiben Technology Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2021-06-08
Anticipated expiration: 2039-11-12
Also published as: CN110706878A

Abstract

The invention discloses a demagnetization protection structure of a voltage transformer, and relates to the technical field of voltage transformers. The voltage transformer comprises a voltage transformer, two wiring terminals are fixedly connected to the top of the voltage transformer, two C-shaped steels are fixedly connected to the bottom of the voltage transformer, two connecting rods penetrate through the C-shaped steels, the two C-shaped steels are fixedly connected with the other C-shaped steel through the two connecting rods, an angle iron is fixedly connected to the top of the voltage transformer, a driving motor is fixedly connected to the bottom surface of the angle iron, an oil pump is fixedly connected to the top surface of the C-shaped steel on the left side of the voltage transformer, and a spiral pipe is fixedly connected to the peripheral side surface of the voltage transformer.

Description

Voltage transformer removes magnetism protective structure

Technical Field

The invention relates to the technical field of voltage transformers, in particular to a demagnetization protection structure of a voltage transformer.

Background

Voltage transformers are instruments for transforming voltages, similar to transformers. However, the purpose of transforming voltage by the transformer is to conveniently transmit electric energy, so that the capacity is very large, and usually kilovolt-ampere or mega volt-ampere is taken as a calculation unit; the voltage transformer is mainly used for supplying power to a measuring instrument and a relay protection device, measuring the voltage, power and electric energy of a line, or protecting valuable equipment, a motor and a transformer in the line when the line fails, so that the capacity of the voltage transformer is small, generally only a few volt-amperes and dozens of volt-amperes, and the maximum voltage of the voltage transformer does not exceed one thousand volt-amperes.

Ferromagnetic resonance easily occurs to current voltage transformer in the use, and ferromagnetic resonance is a form of power system self-excited oscillation, is because persistence, high amplitude resonance overvoltage phenomenon that ferromagnetic inductance's such as transformer, voltage transformer saturation arouses, and ferromagnetic resonance can make equipment take place seriously to damage, consequently develops a protective structure that can remove magnetism and is the technical problem that technical staff in this field need solve.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a demagnetization protection structure of a voltage transformer, which solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a demagnetizing protection structure of a voltage transformer comprises the voltage transformer, wherein the top of the voltage transformer is fixedly connected with two wiring terminals, the bottom of the voltage transformer is fixedly connected with two C-shaped steels, two connecting rods penetrate through the C-shaped steels, the two C-shaped steels are fixedly connected with the other C-shaped steel through the two connecting rods, the top of the voltage transformer is fixedly connected with an angle iron, and the bottom surface of the angle iron is fixedly connected with a driving motor;

and the bottom surface of the spiral pipe is fixedly connected with the left C-shaped steel top surface of the voltage transformer and is positioned on a cooling fan fixedly connected with the left C-shaped steel top surface of the voltage transformer.

Further, spiral pipe bottom intercommunication has the connecting box, the connecting box top surface runs through there are three filter plates, the connecting box is kept away from the voltage transformer lateral wall and is fed through with the oil pump entry, oil pump export intercommunication has the connecting bucket, connecting bucket one end is connected with the cooling tube, cooling tube lateral wall and radiator fan fixed connection, the cooling tube top communicates with the spiral pipe top.

Further, driving motor output shaft fixedly connected with transmission shaft, transmission shaft one end runs through the transport section of thick bamboo and extends to inside the transport section of thick bamboo, the transmission shaft is located the inside one end of transport section of thick bamboo side fixedly connected with helical blade all around, helical blade surface roll connection has the magnet ball, transmission shaft bottom fixedly connected with pivot, the transmission shaft bottom is connected through pivot and transport section of thick bamboo interior bottom rotation.

Further, conveying cylinder top lateral wall intercommunication has gets and puts the box, get and put box lateral wall and spiral pipe top intercommunication, it has the slide bar to run through to get the box top, slide bar top fixedly connected with handle, the slide bar is located to get and puts the outside one end week side cover of box and is equipped with the spring, the spring bottom with get and put box fixed connection, spring top and handle fixed connection.

Furthermore, the slide bar is located and gets inside one end fixedly connected with lift filter screen of putting the box, lift filter screen bottom is rotated through the bearing and is connected with movable filter screen, movable filter screen appearance is the arc structure, movable filter screen week side with get and put box inner surface sliding connection.

The invention has the following beneficial effects:

1. this voltage transformer removes magnetism protective structure rolls around voltage transformer through a plurality of magnet balls along the spiral pipe, and what can be even removes magnetism to voltage transformer, avoids ferromagnetic resonance phenomenon's emergence, prevents that equipment from damaging, has indirectly improved the durability of equipment.

2. This voltage transformer removes magnetism protective structure through endless coolant oil return circuit, can derive the heat that voltage transformer work produced, avoids the heat to gather in voltage transformer is inside, has improved voltage transformer job stabilization nature, simultaneously, gets to put the change magnet ball that the box can be quick, has alleviateed the work load of maintenance and repair.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a demagnetization prevention structure of a voltage transformer according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is a schematic view of the opposite side of FIG. 1;

fig. 5 is a schematic view of the internal structure of the delivery cartridge.

In the drawings, the components represented by the respective reference numerals are listed below:

in the figure: 1-voltage transformer, 2-connecting terminal, 3-C-shaped steel, 4-connecting rod, 5-angle iron, 6-driving motor, 7-conveying cylinder, 8-cooling fan, 9-spiral pipe, 10-cooling pipe, 11-connecting box, 12-filter plate, 13-oil pump, 14-connecting bucket, 15-taking and placing box, 16-lifting filter screen, 17-movable filter screen, 18-sliding rod, 19-handle, 20-transmission shaft, 21-spiral blade, 22-magnet ball and 23-rotating shaft.

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.

Referring to fig. 1-5, the present invention provides a technical solution: a magnetic shielding structure of a voltage transformer comprises a voltage transformer 1, wherein the top of the voltage transformer 1 is fixedly connected with two wiring terminals 2, the bottom of the voltage transformer 1 is fixedly connected with two C-shaped steels 3, two connecting rods 4 penetrate through the inside of the C-shaped steel 3, the two C-shaped steels 3 are fixedly connected with the other C-shaped steel 3 through the two connecting rods 4, the top of the voltage transformer 1 is fixedly connected with an angle iron 5, and the bottom surface of the angle iron 5 is fixedly connected with a JM90-L1-3-P1 type driving motor 6; the C-shaped steel 3 is used for supporting the whole protection structure and the voltage transformer 1, and the wiring terminal 2 is used for being connected with a wire;

the top surface of the C-shaped steel 3 positioned on the left side of the voltage transformer 1 is fixedly connected with a KCB-55 type oil pump 13, the peripheral side surface of the voltage transformer 1 is fixedly connected with a spiral pipe 9, the bottom of the spiral pipe 9 is communicated with a conveying cylinder 7, the bottom surface of the conveying cylinder 7 is fixedly connected with the C-shaped steel 3 positioned on the left side of the voltage transformer 1, and the top surface of the C-shaped steel 3 positioned on the left side of the voltage transformer 1 is fixedly connected with a BFAG-300 type; the cooling fan 8, the driving motor 6 and the oil pump 13 of the invention have no specific designated model, and can be replaced by other devices with equivalent effect, so that the description is omitted, and the cooling fan 8, the driving motor 6 and the oil pump 13 are all powered by the voltage transformer 1.

The bottom end of the spiral tube 9 is communicated with a connecting box 11, three filter plates 12 penetrate through the top surface of the connecting box 11, the side wall, away from the voltage transformer 1, of the connecting box 11 is communicated with an inlet of an oil pump 13, an outlet of the oil pump 13 is communicated with a connecting hopper 14, one end of the connecting hopper 14 is connected with a cooling tube 10, the side wall of the cooling tube 10 is fixedly connected with a cooling fan 8, and the top end of the cooling tube 10 is communicated with the top end of the spiral tube 9; the filter sheet 12 can filter impurities inside the cooling oil on the one hand and can prevent the magnet balls 22 from entering the connection box 11 on the other hand.

Wherein, 6 output shaft fixedly connected with transmission shaft 20 of driving motor, transmission shaft 20 one end runs through the transport section of thick bamboo 7 and extends to inside the transport section of thick bamboo 7, transmission shaft 20 is located the inside one end week side fixedly connected with helical blade 21 of transport section of thick bamboo 7, helical blade 21 surface roll connection has

magnet ball

22, 20 bottom fixedly connected with pivots 23 of transmission shaft, the bottom rotates through pivot 23 and transport section of thick bamboo 7 in the transmission shaft 20 bottom is connected, helical blade 21 rotational speed is 500 revolutions per minute, can be rapid carry magnet ball 22 to transport section of thick bamboo 7 top, avoid magnet ball 22 to roll down in the opposite direction.

Wherein, the lateral wall intercommunication of conveying section of thick bamboo 7 top has gets and puts box 15, gets and puts box 15 lateral wall and spiral pipe 9 top intercommunication, gets and puts box 15 top and run through and have slide bar 18, slide bar 18 top fixedly connected with handle 19, slide bar 18 is located to get and puts the outside one end of box 15 and all sides cover and be equipped with the spring, the spring bottom with get and put box 15 fixed connection, spring top and handle 19 fixed connection, the coolant oil can be smoothly through lift filter screen 16 and activity filter screen 17.

Wherein, one end of the slide bar 18 positioned in the taking and placing box 15 is fixedly connected with a lifting filter screen 16, the bottom of the lifting filter screen 16 is rotatably connected with a movable filter screen 17 through a bearing, the movable filter screen 17 is of an arc-shaped structure, and the peripheral side surface of the movable filter screen 17 is in sliding connection with the inner surface of the taking and placing box 15; the movable screen 17 is used to intercept the magnet ball 22.

The specific application of this embodiment is: the driving motor 6 and the oil pump 13 are electrified and started, the output shaft of the driving motor 6 rotates to drive the transmission shaft 20 to rotate, the transmission shaft 20 drives the helical blade 21 to rotate, the helical blade 21 and the inner wall of the conveying cylinder 7 rotate relatively, the magnetic ball 22 is conveyed to move upwards when the helical blade 21 rotates, the magnetic ball 22 enters the pick-and-place box 15 when conveyed to the top of the conveying cylinder 7, then enters the spiral tube 9, the magnet ball 22 rolls downwards along the spiral tube 9 under the action of gravity, when the magnet ball 22 rolls to the bottom of the spiral tube 9, the magnet ball enters the conveying cylinder 7 again, the magnet ball 22 rolls around the voltage transformer 1 continuously, the voltage transformer 1 can be demagnetized uniformly, ferromagnetic resonance can be effectively avoided, and it should be noted that the number of the magnet balls 22 is ten or more, and is increased or decreased appropriately according to the length of the spiral pipe 9 and the conveying capacity of the conveying cylinder 7; the cooling oil is filled in the spiral pipe 9, the cooling oil flows downwards along with the magnet ball 22 after heat exchange with the voltage transformer 1, the cooling oil flows into the bottom of the spiral pipe 9 and then enters the connecting box 11, the cooling oil is filtered by the three layers of filter plates 12, the magnet ball 22 is separated from the cooling oil, the magnet ball 22 is prevented from entering the connecting box 11, the cooling oil in the connecting box 11 is pumped into the connecting hopper 14 by the oil pump 13 and then enters the cooling pipe 10, when the cooling oil flows in the cooling pipe 10, the cooling fan 8 is powered on to start blowing, the cooling oil in the cooling pipe 10 dissipates heat and cools, the cooled cooling oil enters the top of the spiral pipe 9 again, and the cooling oil continuously circulates to continuously dissipate heat of the peripheral side face of the voltage transformer 1; when the magnetic force of the magnet ball 22 is weakened and the magnet ball 22 needs to be replaced, the handle 19 is pressed downwards, the spring is stressed and compressed, the handle 19 pushes the slide rod 18 to move downwards, the slide rod 18 drives the lifting filter screen 16 and the movable filter screen 17 to move downwards, the magnet ball 22 is intercepted by the movable filter screen 17 when passing through the taking and placing box 15, cooling oil can smoothly pass through the lifting filter screen 16 and the movable filter screen 17, the handle 19 is loosened, the handle 19 is pushed to ascend by rebounding of the spring, the slide rod 18, the lifting filter screen 16, the movable filter screen 17 and the magnet ball 22 are driven to ascend by the handle 19, the magnet ball 22 is positioned at an opening at the top of the taking and placing box 15, the magnet ball 22 is taken out manually, a new magnet ball 22 is placed at the top of the lifting filter screen 16, the movable filter screen 17 is rotated manually for a half circle, the handle 19 is pressed again, the new magnet ball 22 enters the bottom of the taking and placing box, the magnet ball 22 is taken, put and replaced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a voltage transformer removes magnetism protective structure, includes voltage transformer (1), two binding post (2) of voltage transformer (1) top fixedly connected with, its characterized in that: the bottom of the voltage transformer (1) is fixedly connected with two C-shaped steels (3), two connecting rods (4) penetrate through the C-shaped steels (3), the two C-shaped steels (3) are fixedly connected with the other C-shaped steel (3) through the two connecting rods (4), the top of the voltage transformer (1) is fixedly connected with an angle iron (5), and the bottom surface of the angle iron (5) is fixedly connected with a driving motor (6);

the top surface of the C-shaped steel (3) positioned on the left side of the voltage transformer (1) is fixedly connected with an oil pump (13), the peripheral side surface of the voltage transformer (1) is fixedly connected with a spiral pipe (9), the bottom of the spiral pipe (9) is communicated with a conveying cylinder (7), the bottom surface of the conveying cylinder (7) is fixedly connected with the C-shaped steel (3) positioned on the left side of the voltage transformer (1), and the top surface of the C-shaped steel (3) positioned on the left side of the voltage transformer (1) is fixedly connected with a cooling fan (8);

the bottom end of the spiral pipe (9) is communicated with a connecting box (11), three filter plates (12) penetrate through the top surface of the connecting box (11), the side wall, far away from the voltage transformer (1), of the connecting box (11) is communicated with an inlet of an oil pump (13), an outlet of the oil pump (13) is communicated with a connecting hopper (14), one end of the connecting hopper (14) is connected with a cooling pipe (10), the side wall of the cooling pipe (10) is fixedly connected with a cooling fan (8), and the top end of the cooling pipe (10) is communicated with the top end of the spiral pipe (9);

the side wall of the top of the conveying cylinder (7) is communicated with a taking and placing box (15), the side wall of the taking and placing box (15) is communicated with the top end of the spiral pipe (9), a sliding rod (18) penetrates through the top of the taking and placing box (15), the top end of the sliding rod (18) is fixedly connected with a handle (19), a spring is sleeved on the peripheral side of one end, located outside the taking and placing box (15), of the sliding rod (18), the bottom of the spring is fixedly connected with the taking and placing box (15), and the top of the spring is fixedly connected with the handle (19);

slide bar (18) are located and get and put inside one end fixedly connected with lift filter screen (16) of box (15), lift filter screen (16) bottom is rotated through the bearing and is connected with movable filter screen (17), movable filter screen (17) appearance is the arc structure, activity filter screen (17) week side with get and put box (15) internal surface sliding connection.

2. The demagnetizing protection structure of a voltage transformer according to claim 1, wherein a transmission shaft (20) is fixedly connected to an output shaft of the driving motor (6), one end of the transmission shaft (20) penetrates through the conveying cylinder (7) and extends into the conveying cylinder (7), a helical blade (21) is fixedly connected to a circumferential side surface of one end of the transmission shaft (20) located inside the conveying cylinder (7), a magnet ball (22) is connected to the surface of the helical blade (21) in a rolling manner, a rotating shaft (23) is fixedly connected to a bottom end of the transmission shaft (20), and the bottom end of the transmission shaft (20) is rotatably connected to a bottom surface inside the conveying cylinder (7) through the rotating shaft (23).