CN213303874U

CN213303874U - Electromagnetic radiation prevention device for transformer

Info

Publication number: CN213303874U
Application number: CN202022491819.6U
Authority: CN
Inventors: 徐小观
Original assignee: Jiaxing Tongshun Power Equipment Installation Co ltd
Current assignee: Jiaxing Tongshun Power Equipment Installation Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-05-28
Anticipated expiration: 2030-11-02

Abstract

The utility model belongs to the technical field of the transformer, especially, electromagnetic radiation prevention device for transformer, including the shield cover, the surface of shield cover is the rectangle form, the surperficial electric connection of shield cover has the earth connection, the one end electric connection of earth connection has the ground connection stake, the one end of ground connection stake is conical shape, the fixed surface of shield cover is seted up functional groove, and is a plurality of the functional groove is at the surperficial evenly distributed of shield cover, the inner wall fixedly connected with magnetic stripe in functional groove, the fixed helicla flute that has seted up of inner wall of shield cover. This transformer is with anti-electromagnetic radiation device through setting up sealed shielding mechanism, through absorber plate, shield cover, sealed shielding strip and magnetic stripe when using, seals the shielding to the electromagnetic radiation that transformer body produced to it is nearer because of apart from the transformer to have solved current few part resident's house, complaints and the more and more problem of dispute in the aspect of electromagnetic radiation.

Description

Electromagnetic radiation prevention device for transformer

Technical Field

The utility model relates to a transformer technical field especially relates to an electromagnetic radiation prevention device for transformer.

Background

A transformer is a stationary electrical device used to transform ac voltage, current and transmit ac power. The electric energy transmission is realized according to the principle of electromagnetic induction. Transformers can be classified into power transformers, test transformers, instrument transformers, and transformers for special purposes, in terms of their use: the power transformer is necessary equipment for power transmission and distribution and power consumer distribution; the device is used for carrying out voltage withstand (boosting) test on electrical equipment by the test transformer; the instrument transformer is used for electrical measurement and relay protection (PT, CT) of a power distribution system; the transformer for special purposes comprises a furnace transformer for smelting, an electric welding transformer, a rectifier transformer for electrolysis, a small-sized regulating transformer and the like.

As is well known, the urban construction is accelerated, the land resources are increasingly tense, and accordingly, the volume ratio of newly built residential areas is increased, the number of residents is increased, the power consumption is increased, more transformers need to be equipped, and part of the transformers are closer to residential buildings.

SUMMERY OF THE UTILITY MODEL

Because of being closer apart from the transformer in current few part resident's house, complaint and the dispute more and more technical problem in the aspect of electromagnetic radiation, the utility model provides an electromagnetic radiation preventing device for transformer.

The utility model provides an electromagnetic radiation prevention device for transformer, including the shield cover, the surface of shield cover is the rectangle form, the surface electric connection of shield cover has the earth connection, the one end electric connection of earth connection has the ground connection stake, the one end of ground connection stake is the circular cone shape, the fixed surface of shield cover is seted up functional groove, and is a plurality of the functional groove is at the surface uniform distribution of shield cover, the inner wall fixedly connected with magnetic stripe of functional groove, the inner wall of shield cover is fixed and is seted up the helicla flute, the inner wall fixedly connected with cooling oil pipe of helicla flute, the both ends of cooling oil pipe all run through and extend to the surface of shield cover, the fixed surface of shield cover is connected with circulation mechanism, circulation mechanism includes the cooling oil tank, the surface of cooling oil tank is connected with the fixed surface of shield cover;

the inner wall fixedly connected with absorber plate of shield cover, the fixed surface of absorber plate is connected with cooling oil pipe's fixed surface, the fixed surface of shield cover has seted up and has dodged the groove, the inner wall of dodging the groove is fixed with the intercommunication with the inner wall of shield cover, the inner wall of dodging the groove is provided with sealed shielding mechanism.

Preferably, transformer oil is arranged in the cooling oil tank and in the cooling oil pipe, and a circulating oil pump is arranged in the cooling oil tank.

Preferably, both ends of the cooling oil pipe respectively penetrate through and extend to the inner top wall and the inner bottom wall of the cooling oil tank, the output end of the circulating oil pump is fixedly communicated with a connecting pipe, and one end of the connecting pipe is fixedly communicated with the inner wall of the cooling oil pipe located at one end of the inner bottom wall of the cooling oil tank.

Preferably, the sealing and shielding mechanism comprises a mounting groove, and the mounting groove is fixedly arranged on the inner wall of the avoiding groove.

Preferably, two the mounting groove is the symmetric distribution with the axis of dodging the groove as the center, the inner wall fixedly connected with reset spring of mounting groove.

Preferably, a plurality of reset springs are uniformly distributed on the inner wall of the mounting groove, and one end of each reset spring is fixedly connected with a sealing shielding strip.

Preferably, one end of the sealing shielding strip extends to the inner wall of the avoidance groove, and the surface of the sealing shielding strip is adjacent to the surface of the sealing shielding strip and the inner wall of the avoidance groove in a sliding connection mode.

The utility model provides a beneficial effect does:

1. through setting up sealed shielding mechanism, pass through absorber plate, shield cover, sealed shielding strip and magnetic stripe when using, the electromagnetic radiation that produces transformer body seals and shields to solved current few part resident's houses because of being nearer apart from the transformer, complaint and the more and more problem of dispute in the aspect of the electromagnetic radiation.

Drawings

Fig. 1 is a schematic view of an electromagnetic radiation shielding device for a transformer according to the present invention;

fig. 2 is a cross-sectional view of a shielding case structure of an electromagnetic radiation shielding apparatus for a transformer according to the present invention;

fig. 3 is an enlarged view of a structure at a position a in fig. 2 of the electromagnetic radiation shielding apparatus for a transformer according to the present invention.

In the figure: 1. a shield case; 2. a ground line; 3. grounding piles; 4. a functional groove; 5. a magnetic strip; 6. a helical groove; 7. cooling the oil pipe; 8. cooling the oil tank; 81. a circulating oil pump; 82. a connecting pipe; 9. a heat absorbing plate; 10. an avoidance groove; 11. mounting grooves; 1101. a return spring; 1102. the shielding strip is sealed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an electromagnetic radiation prevention device for a transformer comprises a shielding case 1, wherein the surface of the shielding case 1 is rectangular, the surface of the shielding case 1 is electrically connected with a grounding wire 2, one end of the grounding wire 2 is electrically connected with a grounding pile 3, one end of the grounding pile 3 is conical, a functional groove 4 is fixedly formed in the surface of the shielding case 1, a plurality of functional grooves 4 are uniformly distributed on the surface of the shielding case 1, a magnetic strip 5 is fixedly connected to the inner wall of each functional groove 4, a spiral groove 6 is fixedly formed in the inner wall of the shielding case 1, a cooling oil pipe 7 is fixedly connected to the inner wall of each spiral groove 6, two ends of each cooling oil pipe 7 penetrate through and extend to the surface of the shielding case 1, a circulation mechanism is fixedly connected to the surface of the shielding case 1, the circulation mechanism comprises a cooling oil tank 8, and the surface;

the inner wall of the shielding case 1 is fixedly connected with a heat absorbing plate 9, and the surface of the heat absorbing plate 9 is fixedly connected with the surface of the cooling oil pipe 7;

the heat absorption plate 9 has the effects of absorbing heat after dissipating heat generated by the operation of the transformer body in the shielding case 1 and transferring the heat to the cooling oil pipe 7;

an avoiding groove 10 is fixedly formed in the surface of the shielding cover 1, the inner wall of the avoiding groove 10 is fixedly communicated with the inner wall of the shielding cover 1, and a sealing shielding mechanism is arranged on the inner wall of the avoiding groove 10;

transformer oil is arranged in both the cooling oil tank 8 and the cooling oil pipe 7;

the transformer oil has an insulating effect: transformer oil has a much higher dielectric strength than air. The insulating material is soaked in oil, so that the insulating strength can be improved, and the insulating material can be prevented from being corroded by moisture; heat dissipation: transformer oils have a high specific heat and are commonly used as coolants. The heat generated by the transformer in operation enables the oil close to the iron core and the winding to be heated, expanded and raised, and the heat is dissipated through the radiator through the up-down convection of the oil, so that the normal operation of the transformer is ensured; arc extinction effect: on oil circuit breakers and on-load tap changers of transformers, arcing occurs when contacts are switched. The transformer oil has good heat conduction performance, and can separate and touch a large amount of gas under the high-temperature action of the electric arc to generate larger pressure, so that the arc extinguishing performance of the medium is improved, and the electric arc is quickly extinguished;

a circulating oil pump 81 is arranged in the cooling oil tank 8, two ends of the cooling oil pipe 7 respectively penetrate through and extend to the inner top wall and the inner bottom wall of the cooling oil tank 8, the output end of the circulating oil pump 81 is fixedly communicated with a connecting pipe 82, and one end of the connecting pipe 82 is fixedly communicated with the inner wall of the cooling oil pipe 7 positioned at one end of the inner bottom wall of the cooling oil tank 8;

by arranging the cooling oil tank 8 and the circulating oil pump 81, cooling and heat dissipation are performed after the cooling oil pipe 7 absorbs heat from the heat absorption plate 9, and flowing circulation of transformer oil inside the cooling oil pipe 7 is promoted, so that a better heat dissipation and cooling effect is achieved;

the sealing shielding mechanism comprises mounting grooves 11, the mounting grooves 11 are fixedly arranged on the inner wall of the avoiding groove 10, the two mounting grooves 11 are symmetrically distributed by taking the axis of the avoiding groove 10 as the center, the inner wall of the mounting groove 11 is fixedly connected with return springs 1101, the return springs 1101 are uniformly distributed on the inner wall of the mounting groove 11, one ends of the return springs 1101 are fixedly connected with sealing shielding strips 1102, one ends of the sealing shielding strips 1102 extend to the inner wall of the avoiding groove 10, and the surfaces of the sealing shielding strips 1102 are respectively connected with the surfaces of the adjacent sealing shielding strips 1102 and the inner wall of the avoiding groove 10 in a sliding manner;

through setting up sealed shielding mechanism, pass through absorber plate 9, shield cover 1, sealed shielding strip 1102 and magnetic stripe 5 when using, the electromagnetic radiation that produces the transformer body carries out sealed shielding to solved current few part resident's houses because of being close apart from the transformer, complaint and the more and more problem of dispute in the aspect of the electromagnetic radiation.

The working principle is as follows: when the transformer grounding device is used, the inner wall of the shielding case 1 is sleeved with the surface of a transformer body, the transformer body is shielded by electromagnetic radiation through the shielding case 1 and the magnetic strips 5 on the surface of the shielding case 1, the connecting wires on the transformer body can extend out of the surface of the shielding case 1 through the avoiding grooves 10 to be connected with other equipment of a transformer substation, the surface of the sealing shielding strip 1102 is spliced with the surface of the wires to hermetically shield the transformer body, the grounding pile 3 is inserted underground, the grounding wire 2 is electrically connected with the surface of the shielding case 1, and the shielding case 1 is subjected to safe grounding treatment;

the heat that produces the transformer body during operation through the inside absorber plate 9 of shield cover 1 absorbs the heat, reach better electromagnetic shield's effect simultaneously, and absorber plate 9 after the heat absorption transmits the heat to cooling oil pipe 7 on, carry out the heat absorption cooling through cooling oil pipe 7 and the inside transformer oil of cooling oil pipe 7 to absorber plate 9, carry out the circulation flow through circulating oil pump 81 to the inside transformer oil of cooling oil pipe 7 and the inside transformer oil of cooling oil tank 8, dispel the heat to the transformer oil and cool off.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an electromagnetic radiation preventing device for transformer, includes shield cover (1), its characterized in that: the surface of the shielding case (1) is rectangular, the surface of the shielding case (1) is electrically connected with a grounding wire (2), one end of the grounding wire (2) is electrically connected with a grounding pile (3), one end of the grounding pile (3) is conical, a functional groove (4) is formed in the surface of the shielding case (1) in a fixed mode, the functional groove (4) is evenly distributed on the surface of the shielding case (1), a magnetic stripe (5) is fixedly connected to the inner wall of the functional groove (4), a spiral groove (6) is fixedly formed in the inner wall of the shielding case (1), a cooling oil pipe (7) is fixedly connected to the inner wall of the spiral groove (6), the two ends of the cooling oil pipe (7) penetrate through and extend to the surface of the shielding case (1), a circulating mechanism is fixedly connected with the surface of the shielding case (1), and comprises a cooling oil tank (8), the surface of the cooling oil tank (8) is fixedly connected with the surface of the shielding cover (1);

the inner wall fixedly connected with absorber plate (9) of shield cover (1), the fixed surface of the surface of absorber plate (9) and cooling oil pipe (7) is connected, the fixed surface of shield cover (1) has been seted up and has been dodged groove (10), the inner wall of dodging groove (10) and the fixed intercommunication of inner wall of shield cover (1), the inner wall of dodging groove (10) is provided with sealed shielding mechanism.

2. An electromagnetic radiation shielding apparatus for a transformer as claimed in claim 1, wherein: the transformer oil is arranged in the cooling oil tank (8) and the cooling oil pipe (7), and the circulating oil pump (81) is arranged in the cooling oil tank (8).

3. An electromagnetic radiation shielding apparatus for a transformer as claimed in claim 2, wherein: the both ends of cooling oil pipe (7) run through respectively and extend to the interior roof and the interior diapire of cooling oil tank (8), the fixed intercommunication of output of circulating oil pump (81) has connecting pipe (82), the one end of connecting pipe (82) with be located the fixed intercommunication of inner wall of cooling oil pipe (7) of bottom wall one end in cooling oil tank (8).

4. An electromagnetic radiation shielding apparatus for a transformer as claimed in claim 1, wherein: the sealing shielding mechanism comprises a mounting groove (11), wherein the mounting groove (11) is fixedly arranged on the inner wall of the avoiding groove (10).

5. An electromagnetic radiation shielding apparatus for a transformer as claimed in claim 4, wherein: two installation groove (11) are the symmetric distribution with the axis of dodging groove (10) as the center, the inner wall fixedly connected with reset spring (1101) of installation groove (11).

6. An electromagnetic radiation shielding apparatus for a transformer as claimed in claim 5, wherein: the plurality of return springs (1101) are uniformly distributed on the inner wall of the mounting groove (11), and one ends of the return springs (1101) are fixedly connected with sealing shielding strips (1102).

7. An electromagnetic radiation shielding apparatus for a transformer as claimed in claim 6, wherein: one end of the sealing shielding strip (1102) extends to the inner wall of the avoiding groove (10) and is multiple, and the surface of the sealing shielding strip (1102) is adjacent to the surface of the sealing shielding strip (1102) and the inner wall of the avoiding groove (10) are in sliding connection.