KR200475470Y1 - Power transformer with double casing - Google Patents

Abstract

The present invention relates to a double enclosure transformer for preventing noise and vibration from spreading, and more particularly, to a double enclosure transformer installed in a substation or the like, particularly a transformer in which a transverse reinforcement and a longitudinal reinforcement protrude in a lattice shape along an outer wall surface of a cubic tank wall A body; A sound absorbing layer inserted and installed on each unit outer wall surface of the tank wall which is surrounded by the lattice-shaped transverse steel and longitudinal reinforcement; And a plurality of divided shell plates that are bolted to the transverse and longitudinal reinforcement ribs to cover the outer wall surfaces of the unit in which the sound-absorbing layer is inserted. Thereby, it is possible to provide a double enclosure transformer with an improved structure that is environment-friendly and excellent in noise prevention performance without generating contaminants.

Description

[0001] POWER TRANSFORMER WITH DOUBLE CASING [0002]

The present invention relates to an ultra high voltage transformer installed in a substation, and more particularly to a transformer having a double enclosure structure for preventing noise and vibration from spreading.

A conventional technique for preventing the spread of noise and vibration of a transformer is disclosed in Japanese Laid-Open Patent Publication No. 10-2008-0036034 entitled " Low Noise Double Enclosure Transformer "(published on Apr. 24, 2008).

In order to prevent noise and vibration generated from an inner transformer from being transmitted to the outside, an insulation oil is interposed between the primary and secondary enclosures, or a vibration damping paint is applied between the primary and secondary enclosures, , A sound insulating material, a sound absorbing material, and the like.

However, according to the conventional technique for preventing noise of the transformer, there is a problem that oil leakage phenomenon occurs in the case of the technique of interposing the insulating oil, and in order to prevent noise, the performance is insufficient.

Therefore, it is an object of the present invention to provide a double enclosure transformer of improved structure that is environment-friendly and has excellent noise prevention performance without generating pollutants.

In order to achieve the above object, the present invention provides a double enclosure transformer comprising: a transformer main body in which a transverse reinforcement and a longitudinal reinforcement protrude in a lattice shape along an outer wall surface of a tank wall of a cubic body; A sound absorbing layer inserted and installed on each unit outer wall surface of the tank wall which is surrounded by the lattice-shaped transverse steel and longitudinal reinforcement; And a plurality of divided shell plates which are bolted to the transverse and longitudinal reinforcement ribs to cover the outer wall surfaces of the unit in which the sound-absorbing layer is inserted.

Here, the sound-absorbing layer includes a reinforcing bar provided on the outer wall of the unit with an air layer therebetween, a perforated plate and a sound-absorbing material protecting cloth laminated on the reinforcing bar, and a sound absorbing material laminated on the perforated plate and the sound- .

At this time, a colored steel plate may be interposed between the sound-absorbing layer and the divided outer plate.

On the other hand, the split outer plate may be bolted to the transverse steel and the longitudinal reinforcement through a gasket.

As described above, according to the double enclosure transformer according to the present invention, a transverse steel and a longitudinal reinforcement protruding in a lattice shape are provided on the main body of the transformer, and the transverse reinforcement and the longitudinal reinforcement are formed on the unit outer wall surface surrounded by the lattice- Layer transformer is inserted and installed, and then each of them is covered with a split sheathing to bolt-fasten the transverse reinforcement steel and the longitudinal reinforcement steel to prevent the generation of contaminants, as well as to provide a double enclosure transformer of improved structure, .

1 is a perspective view of a transformer main body, which is a component of a double enclosure transformer according to an embodiment of the present invention;
FIGS. 2 to 7 are front views for explaining a manufacturing process of a double enclosure transformer according to an embodiment of the present invention;
8 is a partially enlarged cross-sectional view for explaining a laminated structure between inner and outer walls of a double enclosure transformer according to an embodiment of the present invention.

The dual enclosure transformer 100 according to an embodiment of the present invention includes the transformer body 110 of FIG.

The transverse reinforcement 112 and the longitudinal reinforcement 113 protruding along the outer wall surface of the tank wall 111 of the cubic body are welded to the transformer main body 110 in a lattice shape in the horizontal and vertical directions, As shown in Fig.

Accordingly, the tank walls 111 are divided into a plurality of unit outer wall surfaces 111a surrounded by the lattice-shaped transverse steel 112 and the longitudinal reinforcement 113 as described above.

The fastening holes 112a and 113a are formed at regular intervals along the longitudinal direction near the edges of the transverse steel 112 and the longitudinal reinforcement 113, respectively.

The sound absorbing layer 120 (see FIG. 8) is inserted into each unit outer wall surface 111a defined as described above. Hereinafter, the installation process of the sound absorbing layer 120 will be described.

First, as shown in Fig. 2, a pair of left and right air layers 125 (see Fig. 8) are provided on each unit outer wall surface 11a defined by the transverse steel 112 and the longitudinal reinforcement 113 A reinforcing bar 121 is provided.

Next, the pier plate 122 is installed on the reinforcing bar 121 as shown in FIG. 3, and then the sound absorbing material protecting cloth 123 is laminated on the pier plate 122 as shown in FIG.

Finally, as shown in FIG. 5, the sound absorbing members 124 are stacked to fill the space on the unit outer wall surface 111a surrounded by the lattice-shaped transverse steel 112 and the longitudinal reinforcement 113.

When the sound-absorbing layer 120 having the above-described laminated structure is formed on each unit outer wall surface 111a, as shown in FIG. 6, the color steel plate 130 for sound insulation and finishing treatment is covered, The steel 112 and the longitudinal reinforcement 113 are coincident with each other, and then subjected to a caulking treatment for waterproof treatment.

As shown in Fig. 7, on each unit outer wall surface 111a finished with the color steel plate 130, a rectangular plate 141 is formed on the outer side of the unitary outer plate 141, 112) and the longitudinal reinforcement (113).

At this time, it is possible to prevent the vibration of the transformer main body 110 from being transmitted by inserting the gasket 150 between the outer shell 141, the transverse steel 112 and the longitudinal reinforcement 113.

8 is a partially enlarged cross-sectional view showing the arrangement relationship of the sound-absorbing layer 120, the color steel plate 130 and the split outer plate 140 provided on the tank wall 111 in the above- An air layer 125 is formed between the reinforcing bar 121 and the tank wall 111. As shown in FIG.

On the other hand, according to the double enclosure transformer 100 having the above-described installation structure, a reduction effect of about 7 to 10 [dB] can be obtained with respect to the noise generated in the transformer main body 110.

Since the double enclosure transformer 100 described above is only one embodiment for facilitating understanding of the present invention, it is difficult to understand that the scope and technical scope of the present invention are limited to those described above.

The scope of rights and technical scope of the present invention are determined by the scope of claims for utility model registration described below and the equivalents thereof.

100: double enclosure transformer 110: transformer main body
111: tank wall 112: transverse steel
113: longitudinal reinforcement 120: sound-absorbing layer
121: Reinforcing bar 122:
123: sound absorbing material protective cloth 124: sound absorbing material
125: air layer 130: colored steel plate
140: Split outer plate 150: Gasket

Claims (4)

In a double enclosure transformer,
A transformer main body in which a transverse steel and a longitudinal reinforcement are protruded in a lattice shape along an outer wall surface of a tank wall which is a cubic body; A sound absorbing layer inserted and installed on each unit outer wall surface of the tank wall which is surrounded by the lattice-shaped transverse steel and longitudinal reinforcement; And a plurality of split shells which are bolted to the transverse and longitudinal reinforcement ribs to cover the outer wall surfaces of the unit in which the sound-absorbing layer is inserted,
The sound-
And a sound absorbing material laminated on the perforated plate and the sound absorbing material protecting cloth, wherein the perforated plate and the sound absorbing material protecting cloth are stacked on the outer peripheral wall of the unit,
Said double enclosure transformer comprising:
And a color steel plate sandwiched between the sound-absorbing layer and the split shell plate, wherein the colored steel plate is finished by a caulking process for waterproof treatment in conformity with the transverse reinforcement and the longitudinal reinforcement forming the upper and lower sides of the unit outer wall surface,
Wherein the split shell is bolted to the transverse steel and the longitudinal reinforcement via a gasket. delete delete delete

Images