WO2016108625A1 - Transformer tank having noise reduction structure - Google Patents

Transformer tank having noise reduction structure Download PDF

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Publication number
WO2016108625A1
WO2016108625A1 PCT/KR2015/014493 KR2015014493W WO2016108625A1 WO 2016108625 A1 WO2016108625 A1 WO 2016108625A1 KR 2015014493 W KR2015014493 W KR 2015014493W WO 2016108625 A1 WO2016108625 A1 WO 2016108625A1
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WIPO (PCT)
Prior art keywords
tank
wall
inclined wall
transformer
noise
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PCT/KR2015/014493
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French (fr)
Korean (ko)
Inventor
박철준
이규호
김도진
설부용
최승환
Original Assignee
주식회사 효성
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Publication of WO2016108625A1 publication Critical patent/WO2016108625A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/33—Arrangements for noise damping

Definitions

  • the present invention relates to a transformer tank having a noise reduction structure, and more particularly, to a transformer tank having a noise reduction structure for forming a bend on the surface of the tank to increase rigidity and to disperse noise.
  • Transformer is to change the voltage and current of alternating current by using electromagnetic induction phenomenon.
  • the transformer is widely used from small electronic devices to large substations or power transmission facilities, and particularly high voltage transformers are used for large substations and transmission facilities.
  • FIG. 1 A schematic configuration of such a transformer is shown in FIG. 1.
  • the tank 3 constitutes the external appearance of the transformer 1.
  • An iron core 5 is supported by the frames 7, 7 ′ inside the tank 3, and a winding 9 is wound around the iron core 5.
  • the winding 9 is wound in a cylindrical shape.
  • the external appearance of the tank 3 is made by mounting the reinforcement column 4 'on the surface of the plate-shaped wall 4, as shown in FIG.
  • a tank 3 constitutes an outer appearance of a transformer, and is filled with insulating oil therein.
  • the insulating oil is capable of dissipating heat generated from the winding 9 or the iron core 5 to the outside while insulating.
  • An object of the present invention is to solve the conventional problems as described above, to reduce the noise transmitted to the outside from the tank constituting the appearance of the transformer.
  • Another object of the present invention is to lower the noise value at a specific position around the tank constituting the appearance of the transformer.
  • the present invention is a transformer tank in which a transformer body is installed therein, extending in one direction on the outer surface of the tank is formed bent, the outer surface of the tank Reinforcement column is installed to reinforce the rigidity of tank.
  • the bent portion is formed to extend in a direction parallel to the ground, the first inclined wall formed to be inclined in one direction with respect to the ground and the second inclined wall formed inclined in the opposite direction to the first inclined wall is connected to each other. .
  • a planar wall perpendicular to the ground is further provided between the first inclined wall and the second inclined wall.
  • first inclined wall Between the first inclined wall and the second inclined wall, a first inclined wall or a second inclined wall having a different inclination angle is further provided.
  • the reinforcing column has a first inclined portion having a slope equal to that of the first inclined wall at a position corresponding to the first inclined wall at the curved portion, and a second inclined wall at a position corresponding to the second inclined wall.
  • a flat curved wall and a first inclined wall having a predetermined inclination with respect to the flat wall and a second inclined wall are formed on the surface of the tank forming the exterior of the transformer, and a predetermined curved surface is formed on the surface of the tank. It was made.
  • This configuration is relatively rigid compared to the surface of the tank is a plane has the effect of minimizing the noise transmitted to the outside of the tank.
  • the transmission direction of the noise or vibration transmitted from the tank to the outside is changed by the inclined first and second inclined walls constituting the surface of the tank.
  • FIG. 1 is an explanatory diagram showing an internal configuration of a general transformer.
  • Figure 2 is a perspective view showing a tank constituting the appearance of the transformer according to the prior art.
  • Figure 3 is a schematic perspective view showing a preferred embodiment of a transformer tank having a noise reduction structure according to the present invention.
  • Figure 5 is an operating state showing that vibration is transmitted to the outside in the transformer tank of the embodiment of the present invention.
  • Figure 6 is a graph showing the natural frequency values for each deformation form in the tank according to the present invention and the tank according to the prior art.
  • FIG. 7 is an explanatory diagram showing the degree of deformation due to vibration generated during use of the tank for a transformer of the embodiment of the present invention and the tank of the prior art.
  • first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. If a component is described as being “connected”, “coupled” or “connected” to another component, that component may be directly connected or connected to that other component, but between components It will be understood that may be “connected”, “coupled” or “connected”.
  • the inner space 12 is formed inside the tank 10 constituting the exterior of the transformer.
  • the inner space 12 may be provided with a transformer body (not shown), and may be filled with insulating oil.
  • the transformer body is constructed by winding the iron core installed in the frame.
  • insulating oil is used for the insulation in the internal space 12, the insulating oil also acts as a cooling of the iron core and the winding.
  • the bent portion 13 is formed on the outer surface of the tank 10.
  • the curved portion 13 protrudes to the outer surface of the tank 10 in this embodiment, it extends in one direction. That is, the bent portion 13 extends in parallel with the ground.
  • the bent portion 13 is formed on the outer surface of the outer surface of the tank 10 to see the opposite directions of both sides with a relatively large area.
  • the outer surface of the tank 10 is formed by a planar wall 14 and first and second inclined walls 16 and 18.
  • the planar wall 14 has an outer surface orthogonal to the ground, and the first inclined wall 16 and the second inclined wall 18 are inclined with respect to the ground, and have inclined directions opposite to each other. .
  • the planar wall 14 and the first and second inclined walls 16 and 18 may have various areas.
  • the planar wall 14 forming the right side surface of the tank 10 may be a single plate as a whole.
  • the planar wall 14 made up of several pieces may be coupled to each other to form a side surface.
  • the planar wall 14 separated and separated into several pieces is connected by welding to form left and right sides of the tank 10.
  • the outer surface on which the bent portion 13 is formed in the tank 10 is made by the planar wall 14 and the first and second inclined walls 16 and 18 in this embodiment.
  • the bent portion 13 it will be described with reference to the walls (14, 16, 18) between the two reinforcement column 20 'to be described below.
  • the planar wall 14 and the first and second inclined walls 16 and 18 may be made separately. That is, based on FIG. 3, the flat wall 14 is located at the bottom of the outer surface of the tank 10, and the first inclined wall 16 is connected to the top of the flat wall 14. The first inclined wall 16 is inclinedly connected to the lower flat wall 14.
  • first inclined wall 16 On top of the first inclined wall 16 is another planar wall 14.
  • the flat wall 14 also has an outer surface orthogonal to the ground.
  • second inclined wall 18 connected to the upper portion of the planar wall 14 located above the first inclined wall 16.
  • the second inclined wall 18 has an inclination opposite to that of the first inclined wall 16.
  • Another planar wall 14 is connected to the upper portion of the second inclined wall 18 again.
  • the planar wall 14, the first inclined wall 16, and the second inclined wall 18 described above may be made of one sheet or a plurality of sheets connected to each other. This depends on the design conditions.
  • the planar wall 14, the first inclined wall 16, the planar wall 14, the second inclined wall 18 and the planar wall 14 from below to form one outer surface of the tank 10. May be made by bending the whole piece in one piece and having a predetermined angle in turn, such that the sheet is bent to have a predetermined angle in one piece in this way and formed in various directions in the width direction of the outer surface of the tank 10.
  • An intestine may be connected to constitute the outer surface of the tank 10.
  • the reinforcing column 20 to be described below may be a portion that is coupled to the connection portion.
  • the planar wall 14, the first and second inclined walls 14, 16, and the like are generally composed of a plurality of combinations.
  • the planar wall 14, the first sloped wall 16, and the second sloped wall 18 are used to form the bent portion 13, but the inclination angle is not necessarily required.
  • the bent portion 13 may be formed using various first inclined walls 16 and second inclined walls 18 having various inclination angles. Of course, the bent portion 13 may be formed using only the first inclined wall 16 and the second inclined wall 18.
  • the reinforcement columns 20, 20 ' may have a cross-section of the' '' shape as shown in the figure. Of course, it may have a cross section of the letter 'H'.
  • the straight wall 22 of the reinforcing column 20 ' is mounted on the planar wall 14, and the first ramp 24 is mounted on the first ramp wall 16, and the planar wall 14 is mounted.
  • the second inclined wall 18 is mounted to the second inclined portion (26).
  • the reinforcement column 20 ' is configured to fit the outer surface shape of the tank 10.
  • the reinforcement column 20 ′ has a straight portion 24 and inclined portions 24 and 26 to fit the outer surface of the tank 10.
  • transformer tank having a noise reduction structure according to the present invention having the configuration as described above is used.
  • the bent portion 13 is formed on the outer surface of the tank 10 of the present invention, by forming the bent portion 13 as described above, the rigidity of the tank 10 is relatively reinforced.
  • the natural frequency is proportional to the stiffness and inversely proportional to the mass.
  • FIG. 7A illustrates that deformation occurs due to noise or the like in the tank 10 of the present invention
  • FIG. 7B illustrates that deformation occurs in an existing tank.
  • the deformation mainly occurs in the planar wall 14, and the deformation occurs in a relatively narrow area compared to the conventional tank. It can be seen that the overall rigidity is increased.
  • the noise radiation characteristics of the existing tank and the tank 10 of the present invention in the same frequency band, it can be seen that the noise radiation is reduced in the bent portion (13).
  • the noise blocking performance is high.
  • the tank 10 of the present invention has a relatively high noise due to a high natural frequency and a high transmission loss of radiation noise.
  • the noise and vibration are radiated in a direction orthogonal to the surface of the tank 10. Therefore, the noise emitted from the first inclined wall 16 and the second inclined wall 18 and the noise emitted from the planar wall 14 have different directions, particularly the curved portion.
  • the noise since the noise is radiated inclined in the ground direction or the sky direction differently from the direction radiated from the flat wall 14, the noise that can be felt at a position at the same height as the bent portion 13 is relatively reduced. Such a characteristic makes it possible to reduce noise at a specific position around the transformer tank 10.
  • the bent portion 13 extends parallel to the ground, but the bent portion 13 may extend perpendicular to the ground. Therefore, the bent portion 13 can be seen to be formed extending in one direction on the outer surface of the tank (10).
  • the bent part 13 includes a planar wall 14, a first inclined wall 16, and a second inclined wall 18.
  • the curved part 13 and the first inclined wall 16 are formed.
  • the first inclined wall 16 and the second inclined wall 18 having different angles between the first inclined wall 16 and the second inclined wall 18 are provided. It can also be made.

Abstract

The present invention relates to a transformer tank having a noise reduction structure. The tank (10) of the present invention constitutes the exterior of a transformer and has a transformer main body installed therein. The outer surface of the tank (10) is formed by a flat wall (14) that is perpendicular to the ground, a first inclined wall (16) that is inclined with respect to the ground in one direction, and a second inclined wall (18) that is inclined with respect to the first inclined wall (16) in the opposite direction, and at least the first inclined wall (16) and the second inclined wall (18) form a flexure section (13). The flexure section (13) strengthens the rigidity of the tank (10) and minimizes the radiation of noise by forming flexure on the outer surface of the tank (10). A plurality of reinforcing columns (20, 20') are mounted on the outer surface of the tank (10), each of which includes a rectilinear section (22), a first inclined section (24), and a second inclined section (26) to correspond to the shape of the flexure section (13). According to the present invention, the rigidity of the transformer tank is strengthened, and the radiation of noise is minimized. In addition, the direction of the noise radiated from the flexure section (13) is adjusted, and noise in a region adjacent to the flexure section (13) is minimized.

Description

소음저감구조를 가진 변압기 탱크Transformer tank with noise reduction structure
본 발명은 소음저감구조를 가진 변압기 탱크에 관한 것으로, 더욱 상세하게는 탱크의 표면에 굴곡을 형성하여 강성을 높임과 동시에 소음을 분산시키도록 한 소음저감구조를 가진 변압기 탱크에 관한 것이다.The present invention relates to a transformer tank having a noise reduction structure, and more particularly, to a transformer tank having a noise reduction structure for forming a bend on the surface of the tank to increase rigidity and to disperse noise.
변압기(Transformer)는 전자기 유도현상을 이용하여 교류의 전압 및 전류를 변화시키는 것이다. 상기 변압기는 소형의 전자기기에서부터 대형의 변전설비 또는 송전설비까지 널리 사용되고 있으며, 특히 대형의 변전설비나 송전설비에는 초고압 대용량 변압기가 사용된다.Transformer is to change the voltage and current of alternating current by using electromagnetic induction phenomenon. The transformer is widely used from small electronic devices to large substations or power transmission facilities, and particularly high voltage transformers are used for large substations and transmission facilities.
이와 같은 변압기의 개략적인 구성이 도 1에 개시되어 있다. 도면에 도시된 바에 따르면, 변압기(1)의 외관을 탱크(3)가 구성한다. 상기 탱크(3)의 내부에는 철심(5)이 프레임(7,7')에 지지되어 있고, 상기 철심(5)에는 권선(9)이 감겨져 있다. 상기 권선(9)은 원통형상으로 감져져 있다.A schematic configuration of such a transformer is shown in FIG. 1. As shown in the figure, the tank 3 constitutes the external appearance of the transformer 1. An iron core 5 is supported by the frames 7, 7 ′ inside the tank 3, and a winding 9 is wound around the iron core 5. The winding 9 is wound in a cylindrical shape.
이와 같은 구성을 가지는 변압기(1)에서 상기 탱크(3)의 외관은 도 2에 도시된 바와 같이, 판상의 벽체(4)의 표면에 보강컬럼(4')이 장착되어 만들어진다. 이와 같은 탱크(3)는 변압기의 외관을 구성하고, 내부에는 절연유가 채워진다. 상기 절연유는 절연작용을 하면서 상기 권선(9)이나 철심(5)에서 발생하는 열을 외부로 방출할 수 있게 된다.In the transformer 1 having such a configuration, the external appearance of the tank 3 is made by mounting the reinforcement column 4 'on the surface of the plate-shaped wall 4, as shown in FIG. Such a tank 3 constitutes an outer appearance of a transformer, and is filled with insulating oil therein. The insulating oil is capable of dissipating heat generated from the winding 9 or the iron core 5 to the outside while insulating.
하지만, 변압기(1)의 동작중에 상기 철심(5)이나 권선(9)에서는 진동이 발생하고, 그 진동은 상기 절연유를 통해 탱크(3)로 전달된다. 따라서, 상기 탱크(3)에서는 진동과 소음이 외부로 전달된다. 특히, 도 2에 도시된 바와 같이 탱크(3)의 평평한 벽체(4)를 통해서는 내부의 절연유에 의해 전달되는 진동과 소음이 외부로 전달되어 변압기(1)의 외부에서 소음을 듣게 되는 문제점이 있다.However, during operation of the transformer 1, vibration occurs in the iron core 5 or the winding 9, and the vibration is transmitted to the tank 3 through the insulating oil. Therefore, vibration and noise are transmitted to the outside in the tank 3. In particular, as shown in Figure 2 through the flat wall of the tank 3, the vibration and noise transmitted by the insulating oil therein is transmitted to the outside to hear the noise from the outside of the transformer (1) have.
본 발명의 목적은 상기한 바와 같은 종래의 문제점을 해결하기 위한 것으로, 변압기의 외관을 구성하는 탱크에서 외부로 전달되는 소음을 줄여주는 것이다.An object of the present invention is to solve the conventional problems as described above, to reduce the noise transmitted to the outside from the tank constituting the appearance of the transformer.
본 발명의 다른 목적은 변압기의 외관을 구성하는 탱크 주변의 특정 위치에서의 소음값을 낮춰주는 것이다.Another object of the present invention is to lower the noise value at a specific position around the tank constituting the appearance of the transformer.
상기한 바와 같은 목적을 달성하기 위한 본 발명의 특징에 따르면, 본 발명은 내부에 변압기본체가 설치되는 변압기 탱크에 있어서, 상기 탱크의 외면에 일방향으로 연장되어 굴곡부가 형성되고, 상기 탱크의 외면에 보강컬럼이 설치되어 탱크의 강성을 보강한다.According to a feature of the present invention for achieving the above object, the present invention is a transformer tank in which a transformer body is installed therein, extending in one direction on the outer surface of the tank is formed bent, the outer surface of the tank Reinforcement column is installed to reinforce the rigidity of tank.
상기 굴곡부는 지면에 평행한 방향으로 연장되어 형성되는데, 지면에 대해 일방향으로 경사지게 형성되는 제1경사벽체와 상기 제1경사벽체에 대해 반대방향으로 경사지게 형성되는 제2경사벽체가 서로 연결되어 형성된다.The bent portion is formed to extend in a direction parallel to the ground, the first inclined wall formed to be inclined in one direction with respect to the ground and the second inclined wall formed inclined in the opposite direction to the first inclined wall is connected to each other. .
상기 제1경사벽체와 제2경사벽체 사이에 지면에 대해 직교하는 평면벽체가 더 설치된다.A planar wall perpendicular to the ground is further provided between the first inclined wall and the second inclined wall.
상기 제1경사벽체와 제2경사벽체 사이에는 다른 경사각도를 가지는 제1경사벽체나 제2경사벽체가 더 설치된다.Between the first inclined wall and the second inclined wall, a first inclined wall or a second inclined wall having a different inclination angle is further provided.
상기 보강컬럼은 상기 굴곡부에서 상기 제1경사벽체와 대응되는 위치에는 상기 제1경사벽체의 경사와 같은 경사를 가지는 제1경사부가 있고, 상기 제2경사벽체와 대응되는 위치에는 상기 제2경사벽체의 경사와 같은 경사를 가지는 제2경사부가 있고, 상기 평면벽체와 대응되는 위치에는 지면에 대해서 직교하는 직선부가 있다.The reinforcing column has a first inclined portion having a slope equal to that of the first inclined wall at a position corresponding to the first inclined wall at the curved portion, and a second inclined wall at a position corresponding to the second inclined wall. There is a second inclined portion having an inclination equal to the inclination of, and at a position corresponding to the planar wall, there is a straight portion perpendicular to the ground.
본 발명에 의한 소음저감구조를 가진 변압기 탱크에서는 다음과 같은 효과를 얻을 수 있다.In the transformer tank having a noise reduction structure according to the present invention, the following effects can be obtained.
먼저, 본 발명에서는 변압기의 외관을 형성하는 탱크의 표면에 평평한 평면벽체와 상기 평면벽체에 대해 소정 경사를 가지는 제1경사벽체와 제2경사벽체를 두어 탱크 표면에 전체적으로 볼 때 소정의 곡면이 형성되도록 하였다. 이와 같은 구성은 탱크의 표면이 평면으로 된 것에 비해 상대적으로 강성이 높아지게 되어 탱크의 외부로 전달되는 소음이 최소화되는 효과가 있다.First, in the present invention, a flat curved wall and a first inclined wall having a predetermined inclination with respect to the flat wall and a second inclined wall are formed on the surface of the tank forming the exterior of the transformer, and a predetermined curved surface is formed on the surface of the tank. It was made. This configuration is relatively rigid compared to the surface of the tank is a plane has the effect of minimizing the noise transmitted to the outside of the tank.
그리고, 본 발명에서는 탱크의 표면을 구성하는 경사진 제1 및 제2경사벽체에 의해 탱크에서 외부로 전달되는 소음이나 진동의 전달방향이 달라지게 되는데, 본 발명에서는 특정한 높이에서 탱크의 외면 전방으로 전달되는 소음이나 진동을 최소화하여서, 원하는 위치에서의 소음을 줄어들게 할 수 있다.In addition, in the present invention, the transmission direction of the noise or vibration transmitted from the tank to the outside is changed by the inclined first and second inclined walls constituting the surface of the tank. By minimizing the transmitted noise or vibration, it is possible to reduce the noise at the desired position.
도 1은 일반적인 변압기의 내부구성을 보인 설명도.1 is an explanatory diagram showing an internal configuration of a general transformer.
도 2는 종래 기술에 의한 변압기의 외관을 구성하는 탱크를 보인 사시도.Figure 2 is a perspective view showing a tank constituting the appearance of the transformer according to the prior art.
도 3은 본 발명에 의한 소음저감구조를 가지는 변압기 탱크의 바람직한 실시례를 보인 개략사시도.Figure 3 is a schematic perspective view showing a preferred embodiment of a transformer tank having a noise reduction structure according to the present invention.
도 4는 본 발명 실시례의 중요부를 보인 단면도.4 is a cross-sectional view showing an important part of the embodiment of the present invention.
도 5는 본 발명 실시례의 변압기용 탱크에서 외부로 진동이 전달되는 것을 보인 동작상태도.Figure 5 is an operating state showing that vibration is transmitted to the outside in the transformer tank of the embodiment of the present invention.
도 6에는 본 발명에 의한 탱크와 종래 기술에 의한 탱크에서 각 변형형태별로 고유진동수값을 보인 그래프.Figure 6 is a graph showing the natural frequency values for each deformation form in the tank according to the present invention and the tank according to the prior art.
도 7은 본 발명 실시례의 변압기용 탱크와 종래 기술의 탱크의 사용중에 발생하는 진동에 의한 변형정도를 보인 설명도.7 is an explanatory diagram showing the degree of deformation due to vibration generated during use of the tank for a transformer of the embodiment of the present invention and the tank of the prior art.
이하, 본 발명의 일부 실시예들을 예시적인 도면을 통해 상세하게 설명한다. 각 도면의 구성요소들에 참조부호를 부가함에 있어서, 동일한 구성요소들에 대해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호를 가지도록 하고 있음에 유의해야 한다. 또한, 본 발명의 실시예를 설명함에 있어, 관련된 공지구성 또는 기능에 대한 구체적인 설명이 본 발명의 실시예에 대한 이해를 방해한다고 판단되는 경우에는 그 상세한 설명은 생략한다.Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing the embodiments of the present invention, if it is determined that the detailed description of the related well-known configuration or function interferes with the understanding of the embodiments of the present invention, the detailed description thereof will be omitted.
또한, 본 발명의 실시예의 구성 요소를 설명하는 데 있어서, 제 1, 제 2, A, B, (a), (b) 등의 용어를 사용할 수 있다. 이러한 용어는 그 구성 요소를 다른 구성 요소와 구별하기 위한 것일 뿐, 그 용어에 의해 해당 구성 요소의 본질이나 차례 또는 순서 등이 한정되지 않는다. 어떤 구성 요소가 다른 구성요소에 "연결", "결합" 또는 "접속"된다고 기재된 경우, 그 구성 요소는 그 다른 구성요소에 직접적으로 연결되거나 접속될 수 있지만, 각 구성 요소 사이에 또 다른 구성 요소가 "연결", "결합" 또는 "접속"될 수도 있다고 이해되어야 할 것이다.In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but between components It will be understood that may be "connected", "coupled" or "connected".
도 3 등에 도시된 바에 따르면, 변압기의 외관을 구성하는 탱크(10)의 내부에는 내부공간(12)이 형성된다. 상기 내부공간(12)에는 변압기본체(도시되지 않음)가 설치되고, 절연유가 채워질 수도 있다. 상기 변압기본체는 프레임에 설치된 철심에 권선이 설치되어 구성된다. 상기 내부공간(12)에서의 절연을 위해 절연유를 사용하는 경우에, 상기 절연유는 상기 철심과 권선의 냉각작용도 한다.As shown in FIG. 3, the inner space 12 is formed inside the tank 10 constituting the exterior of the transformer. The inner space 12 may be provided with a transformer body (not shown), and may be filled with insulating oil. The transformer body is constructed by winding the iron core installed in the frame. When insulating oil is used for the insulation in the internal space 12, the insulating oil also acts as a cooling of the iron core and the winding.
본 발명에서 상기 탱크(10)의 외면에는 굴곡부(13)가 형성된다. 상기 굴곡부(13)는 본 실시례에서는 탱크(10)의 외면으로 돌출되는데, 일방향으로 길게 연장된다. 즉, 지면에 대해서 평행하게 상기 굴곡부(13)가 연장되어 형성된다. 여기서 상기 굴곡부(13)는 상기 탱크(10)의 외면중에서 상대적으로 면적이 넓은 양측의 서로 반대방향을 보는 외면에 형성된다. 하지만, 상기 탱크(10)의 외면중에서 일정 이상의 면적이 되는 외면에는 상기 굴곡부(13)를 두는 것이 좋다.In the present invention, the bent portion 13 is formed on the outer surface of the tank 10. The curved portion 13 protrudes to the outer surface of the tank 10 in this embodiment, it extends in one direction. That is, the bent portion 13 extends in parallel with the ground. Here, the bent portion 13 is formed on the outer surface of the outer surface of the tank 10 to see the opposite directions of both sides with a relatively large area. However, it is preferable to place the bent portion 13 on the outer surface of the outer surface of the tank 10 to have a predetermined area or more.
상기 탱크(10)의 외면을 평면벽체(14)와 제1 및 제2 경사벽체(16,18)가 형성한다. 여기서, 상기 평면벽체(14)는 외면이 지면에 대해서 직교하게 형성되고, 상기 제1경사벽체(16)와 제2경사벽체(18)는 지면에 대해 경사가 있는데, 서로 반대방향의 경사를 가진다.The outer surface of the tank 10 is formed by a planar wall 14 and first and second inclined walls 16 and 18. Here, the planar wall 14 has an outer surface orthogonal to the ground, and the first inclined wall 16 and the second inclined wall 18 are inclined with respect to the ground, and have inclined directions opposite to each other. .
상기 평면벽체(14)와 제1 및 제2 경사벽체(16,18)들은 그 면적이 다양하게 될 수 있다. 예를 들어 도 3에서 탱크(10)의 우측면을 형성하는 평면벽체(14)는 전체가 하나의 판으로 될 수도 있다. 물론, 몇 개로 분리되어 만들어진 상기 평면벽체(14)가 서로 결합되어 측면을 형성할 수 있다. 실제로는 상기 탱크(10)의 크기가 크기 때문에 몇 개로 분리되어 만들어진 평면벽체(14)를 용접으로 연결하여 탱크(10)의 좌우 측면을 형성하게 된다.The planar wall 14 and the first and second inclined walls 16 and 18 may have various areas. For example, in FIG. 3, the planar wall 14 forming the right side surface of the tank 10 may be a single plate as a whole. Of course, the planar wall 14 made up of several pieces may be coupled to each other to form a side surface. In practice, since the tank 10 is large in size, the planar wall 14 separated and separated into several pieces is connected by welding to form left and right sides of the tank 10.
상기 탱크(10)에서 상기 굴곡부(13)가 형성된 외면은 본 실시례에서는 상기 평면벽체(14)와 제1 및 제2 경사벽체(16,18)에 의해 만들어진다. 참고로, 여기서는 굴곡부(13)에 대한 설명을 할 때, 아래에서 설명될 보강컬럼(20') 2개 사이에 있는 벽체(14,16,18)들을 기준으로 설명한다.The outer surface on which the bent portion 13 is formed in the tank 10 is made by the planar wall 14 and the first and second inclined walls 16 and 18 in this embodiment. For reference, when describing the bent portion 13, it will be described with reference to the walls (14, 16, 18) between the two reinforcement column 20 'to be described below.
상기 평면벽체(14)와 제1 및 제2 경사벽체(16,18)는 각각 별개로 만들어질 수 있다. 즉, 도 3을 기준으로 탱크(10) 외면의 가장 하부에 평면벽체(14)가 있고, 상기 평면벽체(14)의 상부에 연결되게 제1경사벽체(16)가 있다. 상기 제1경사벽체(16)는 상기 하부의 평면벽체(14)에 대해서 소정의 경사지게 연결된다. The planar wall 14 and the first and second inclined walls 16 and 18 may be made separately. That is, based on FIG. 3, the flat wall 14 is located at the bottom of the outer surface of the tank 10, and the first inclined wall 16 is connected to the top of the flat wall 14. The first inclined wall 16 is inclinedly connected to the lower flat wall 14.
상기 제1경사벽체(16)의 상부에는 또 다른 평면벽체(14)가 있다. 상기 평면벽체(14)도 지면에 대해서 직교하는 외면을 가진다. 상기 제1경사벽체(16)의 상부에 있는 평면벽체(14)의 상부에 연결되어 제2경사벽체(18)가 있다. 상기 제2경사벽체(18)는 상기 제1경사벽체(16)의 경사와는 반대방향의 경사를 가진다. 상기 제2경사벽체(18)의 상부에는 다시 또 다른 평면벽체(14)가 연결되어 있다.On top of the first inclined wall 16 is another planar wall 14. The flat wall 14 also has an outer surface orthogonal to the ground. There is a second inclined wall 18 connected to the upper portion of the planar wall 14 located above the first inclined wall 16. The second inclined wall 18 has an inclination opposite to that of the first inclined wall 16. Another planar wall 14 is connected to the upper portion of the second inclined wall 18 again.
참고로, 위에서 설명된 평면벽체(14), 제1경사벽체(16) 그리고 제2경사벽체(18)들은 각각 한 장으로 또는 여러 장이 연결되어 만들어 질 수 있다. 이는 설계조건에 따라 달라진다. 물론, 상기 탱크(10)의 일측 외면을 형성하도록 하부로 부터 있는 평면벽체(14), 제1경사벽체(16), 평면벽체(14), 제2경사벽체(18) 그리고 평면벽체(14)는 전체가 한 장으로 되어 차례로 소정 각도를 가지도록 절곡됨에 의해 만들어질 수도 있고, 이들과 같이 한 장으로 되어 차례로 소정 각도를 가지도록 절곡되어 만들어지는 것이 탱크(10)의 외면의 폭방향으로 여러 장이 연결되어 탱크(10)의 외면을 구성할 수도 있다. 이때, 아래에서 설명될 보강컬럼(20)이 결합되는 부분을 연결부로 하면 좋다. 실제로는 상기 평면벽체(14), 제1 및 제2경사벽체(14,16) 등은 모두 여러 개가 결합되어 구성되는 것이 일반적이다.For reference, the planar wall 14, the first inclined wall 16, and the second inclined wall 18 described above may be made of one sheet or a plurality of sheets connected to each other. This depends on the design conditions. Of course, the planar wall 14, the first inclined wall 16, the planar wall 14, the second inclined wall 18 and the planar wall 14 from below to form one outer surface of the tank 10. May be made by bending the whole piece in one piece and having a predetermined angle in turn, such that the sheet is bent to have a predetermined angle in one piece in this way and formed in various directions in the width direction of the outer surface of the tank 10. An intestine may be connected to constitute the outer surface of the tank 10. In this case, the reinforcing column 20 to be described below may be a portion that is coupled to the connection portion. In practice, the planar wall 14, the first and second inclined walls 14, 16, and the like are generally composed of a plurality of combinations.
그리고, 도시된 실시례에서는 굴곡부(13)를 형성하기 위해서, 평면벽체(14), 제1경사벽체(16) 및 제2경사벽체(18)를 사용하였으나, 반드시 그러해야 하는 것은 아니며, 경사각도가 다양한 제1경사벽체(16)와 경사각도가 다양한 제2경사벽체(18)를 사용하여 굴곡부(13)를 형성할 수 있다. 물론, 제1경사벽체(16)와 제2경사벽체(18)만을 사용하여서 굴곡부(13)를 형성할 수도 있다.In the illustrated embodiment, the planar wall 14, the first sloped wall 16, and the second sloped wall 18 are used to form the bent portion 13, but the inclination angle is not necessarily required. The bent portion 13 may be formed using various first inclined walls 16 and second inclined walls 18 having various inclination angles. Of course, the bent portion 13 may be formed using only the first inclined wall 16 and the second inclined wall 18.
상기 탱크(10)의 외면에는 탱크(10)의 강성을 보강하기 위해서 보강컬럼(20,20')이 장착된다. 상기 보강컬럼(20,20')은 도면에 도시된 바와 같이 'ㄷ'자 형상의 횡단면을 가질 수 있다. 물론, 'H'자의 횡단면을 가질 수도 있다. 상기 보강컬럼(20,20')은 지면쪽에서부터 시작해서 탱크(10)의 외면에 장착되는데, 탱크(10)의 외면 형상에 맞게 그 형상이 만들어진다.Reinforcing columns 20, 20 'are mounted on the outer surface of the tank 10 to reinforce the rigidity of the tank 10. The reinforcement columns 20, 20 'may have a cross-section of the' '' shape as shown in the figure. Of course, it may have a cross section of the letter 'H'. The reinforcement columns 20, 20 'are mounted on the outer surface of the tank 10 starting from the ground side, the shape is made to match the outer surface shape of the tank (10).
즉, 상기 평면벽체(14)에는 보강컬럼(20')의 직선부(22)가 장착되고, 상기 제1경사벽체(16)에는 제1경사부(24)가 장착되고, 상기 평면벽체(14)에는 다시 직선부(22)가 장착되며, 상기 제2경사벽체(18)에는 제2경사부(26)가 장착된다. 이와 같이 상기 보강컬럼(20')은 상기 탱크(10)의 외면 형상에 맞도록 구성된다.That is, the straight wall 22 of the reinforcing column 20 'is mounted on the planar wall 14, and the first ramp 24 is mounted on the first ramp wall 16, and the planar wall 14 is mounted. ) Is again mounted to the straight portion 22, the second inclined wall 18 is mounted to the second inclined portion (26). Thus, the reinforcement column 20 'is configured to fit the outer surface shape of the tank 10.
이와 같이 하여 상기 탱크(10)의 외면에 굴곡부(13)를 형성하게 되면, 상기 탱크(10)의 강성이 굴곡부(13)에 의해 보강되면서 진동이나 소음이 외부로 전달되는 것이 최소화된다. 상기 보강컬럼(20')의 구성은 탱크(10) 외면을 구성에 맞게 직선부(24)와 경사부(24,26)가 구비된다.When the bent portion 13 is formed on the outer surface of the tank 10 in this way, while the rigidity of the tank 10 is reinforced by the bent portion 13, vibration or noise is transmitted to the outside. The reinforcement column 20 ′ has a straight portion 24 and inclined portions 24 and 26 to fit the outer surface of the tank 10.
이하 상기한 바와 같은 구성을 가지는 본 발명에 의한 소음저감구조를 가지는 변압기 탱크가 사용되는 것을 상세하게 설명한다.Hereinafter will be described in detail that the transformer tank having a noise reduction structure according to the present invention having the configuration as described above is used.
본 발명의 탱크(10)의 외면에는 굴곡부(13)가 형성되어 있는데, 이와 같이 굴곡부(13)를 형성함에 의해 상기 탱크(10)의 강성이 상대적으로 보강된다. 일반적으로 고유진동수는 강성에 비례하고 질량에 반비례하는데, 도 3에 도시된 형상의 본 발명의 탱크(10)와 제 7(b)에 도시된 종래의 탱크의 형상을 기준으로 고유진동수를 확인하면, 도 6에 도시된 그래프와 같이 된다. 즉, 본원발명의 탱크(10)가 기존탱크에 비해 상대적으로 고유진동수가 변형의 각종 모드 전체에서 상대적으로 큰 것을 알 수 있다. 그래프 상에서는 본 발명의 탱크(10)의 고유진동수가 약 150% 정도 증가한 것을 알 수 있다.The bent portion 13 is formed on the outer surface of the tank 10 of the present invention, by forming the bent portion 13 as described above, the rigidity of the tank 10 is relatively reinforced. In general, the natural frequency is proportional to the stiffness and inversely proportional to the mass. When the natural frequency is confirmed based on the shape of the tank 10 of the present invention having the shape shown in FIG. , As shown in FIG. 6. That is, it can be seen that the tank 10 of the present invention has a relatively high natural frequency in all the various modes of deformation compared to the existing tank. On the graph it can be seen that the natural frequency of the tank 10 of the present invention increased by about 150%.
이는 도 7에서도 그 상황을 확인할 수 있다. 도 7의 (a)에는 본 발명의 탱크(10)에서 소음 등에 의한 변형이 발생하는 것을 도시하고 있고, 도 7의 (b)에서는 기존의 탱크에서 변형이 발생하는 것을 도시하고 있다. 여기에서 알 수 있듯이, 본 발명에서는 굴곡부(13)에서는 거의 변형이 발생하지 않고, 평면벽체(14)에서 주로 변형이 발생하는 것을 알 수 있고, 종래 탱크에 비해 상대적으로 좁은 영역에서 변형이 발생하는 것을 보아, 전체적으로 강성이 커진 것을 확인할 수 있다.This can be confirmed in FIG. 7. FIG. 7A illustrates that deformation occurs due to noise or the like in the tank 10 of the present invention, and FIG. 7B illustrates that deformation occurs in an existing tank. As can be seen here, in the present invention, almost no deformation occurs in the bent portion 13, and it can be seen that the deformation mainly occurs in the planar wall 14, and the deformation occurs in a relatively narrow area compared to the conventional tank. It can be seen that the overall rigidity is increased.
여기서, 동일한 주파수 대역에서 기존탱크와 본 발명의 탱크(10)의 소음 방사특성을 살펴보면, 굴곡부(13)에서 상대적으로 소음방사가 줄어든 것을 확인할 수 있다. 일반적으로 고유진동수가 음향주파수보다 높으면 소음의 차단 성능이 높다. 기존의 탱크와 본 발명의 탱크(10)를 유사한 중량으로 설계했을 때, 본 발명의 탱크(10)는 고유진동수가 상승하고 방사소음의 투과손실이 높아져서 상대적으로 저소음으로 된다.Here, looking at the noise radiation characteristics of the existing tank and the tank 10 of the present invention in the same frequency band, it can be seen that the noise radiation is reduced in the bent portion (13). Generally, when the natural frequency is higher than the acoustic frequency, the noise blocking performance is high. When the existing tank and the tank 10 of the present invention are designed to have a similar weight, the tank 10 of the present invention has a relatively high noise due to a high natural frequency and a high transmission loss of radiation noise.
한편, 본 발명의 탱크(10)에서는 도 5에 잘 도시된 바와 같이, 탱크(10)의 표면에 대해 직교하는 방향으로 소음과 진동이 방사된다. 따라서, 상기 굴곡부(13)를 형성하는 상기 제1경사벽체(16)와 제2경사벽체(18)에서 방사되는 소음과 평면벽체(14)에서 방사되는 소음은 그 방향이 달라지게 되고, 특히 굴곡부(13)에서는 평면벽체(14)에서 방사되는 방향과는 다르게 지면 방향이나 하늘 방향으로 경사지게 소음이 방사되므로 굴곡부(13)와 같은 높이에 있는 위치에서는 느낄 수 있는 소음이 상대적으로 줄어들게 된다. 이와 같은 특성은 변압기 탱크(10)의 주변 특정 위치에서의 소음을 줄일 수 있게 한다.Meanwhile, in the tank 10 of the present invention, as shown in FIG. 5, noise and vibration are radiated in a direction orthogonal to the surface of the tank 10. Therefore, the noise emitted from the first inclined wall 16 and the second inclined wall 18 and the noise emitted from the planar wall 14 have different directions, particularly the curved portion. In (13), since the noise is radiated inclined in the ground direction or the sky direction differently from the direction radiated from the flat wall 14, the noise that can be felt at a position at the same height as the bent portion 13 is relatively reduced. Such a characteristic makes it possible to reduce noise at a specific position around the transformer tank 10.
이상의 설명은 본 발명의 기술 사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. 따라서, 본 발명에 개시된 실시예들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.
도시된 실시례에서는 상기 굴곡부(13)가 지면에 대해 평행하게 연장되었으나, 굴곡부(13)가 지면에 대해 직교하게 연장될 수도 있다. 따라서, 상기 굴곡부(13)는 상기 탱크(10)의 외면에 일방향으로 연장되어 형성되는 것으로 볼 수 있다. In the illustrated embodiment, the bent portion 13 extends parallel to the ground, but the bent portion 13 may extend perpendicular to the ground. Therefore, the bent portion 13 can be seen to be formed extending in one direction on the outer surface of the tank (10).
그리고, 상기 굴곡부(13)는 도시된 실시례에서는 평면벽체(14), 제1경사벽체(16) 그리고 제2경사벽체(18)로 구성되었으나, 예를 들면 제1경사벽체(16)와 제2경사벽체(18)로만 형성되거나, 제1경사벽체(16)와 제2경사벽체(18)의 사이에 다른 각도를 가지는 제1경사벽체(16)와 제2경사벽체(18)가 설치되어 만들어질 수도 있다.In addition, in the illustrated embodiment, the bent part 13 includes a planar wall 14, a first inclined wall 16, and a second inclined wall 18. For example, the curved part 13 and the first inclined wall 16 are formed. The first inclined wall 16 and the second inclined wall 18 having different angles between the first inclined wall 16 and the second inclined wall 18 are provided. It can also be made.

Claims (5)

  1. 내부에 변압기본체가 설치되는 변압기 탱크에 있어서,In a transformer tank having a transformer body installed therein,
    상기 탱크의 외면에 일방향으로 연장되어 굴곡부가 형성되고, 상기 탱크의 외면에 보강컬럼이 설치되어 탱크의 강성을 보강하는 소음저감구조를 가진 변압기 탱크.A transformer tank having a noise reduction structure extending in one direction to the outer surface of the tank to form a bent portion, and a reinforcement column is installed on the outer surface of the tank to reinforce the rigidity of the tank.
  2. 제 1 항에 있어서, 상기 굴곡부는 지면에 평행한 방향으로 연장되어 형성되는데, 지면에 대해 일방향으로 경사지게 형성되는 제1경사벽체와 상기 제1경사벽체에 대해 반대방향으로 경사지게 형성되는 제2경사벽체가 서로 연결되어 형성되는 소음저감구조를 가진 변압기 탱크.According to claim 1, wherein the bent portion is formed extending in a direction parallel to the ground, the first inclined wall formed to be inclined in one direction with respect to the ground and the second inclined wall formed inclined in the opposite direction to the first inclined wall. Transformer tank with noise reduction structure formed by connecting to each other.
  3. 제 2 항에 있어서, 상기 제1경사벽체와 제2경사벽체 사이에 지면에 대해 직교하는 평면벽체가 더 설치되는 소음저감구조를 가진 변압기 탱크.3. The transformer tank according to claim 2, wherein a planar wall orthogonal to the ground is further provided between the first inclined wall and the second inclined wall.
  4. 제 2 항에 있어서, 상기 제1경사벽체와 제2경사벽체 사이에는 다른 경사각도를 가지는 제1경사벽체나 제2경사벽체가 더 설치되는 소음저감구조를 가진 변압기 탱크.3. The transformer tank according to claim 2, wherein a first inclined wall or a second inclined wall having a different inclination angle is further provided between the first inclined wall and the second inclined wall.
  5. 제1 항 내지 제 4 항중 어느 한 항에 있어서, 상기 보강컬럼은 상기 굴곡부에서 상기 제1경사벽체와 대응되는 위치에는 상기 제1경사벽체의 경사와 같은 경사를 가지는 제1경사부가 있고, 상기 제2경사벽체와 대응되는 위치에는 상기 제2경사벽체의 경사와 같은 경사를 가지는 제2경사부가 있고, 상기 평면벽체와 대응되는 위치에는 지면에 대해서 직교하는 직선부가 있는 소음저감구조를 가진 변압기 탱크.The reinforcement column has a first inclined portion having an inclination equal to that of the first inclined wall in a position corresponding to the first inclined wall in the bent portion. A transformer tank having a noise reduction structure having a second inclined portion having a slope equal to that of the second sloped wall at a position corresponding to the two inclined walls, and a straight portion orthogonal to the ground at a position corresponding to the flat wall.
PCT/KR2015/014493 2014-12-31 2015-12-30 Transformer tank having noise reduction structure WO2016108625A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110060867A (en) * 2019-04-30 2019-07-26 全球能源互联网研究院有限公司 Body structure, capacitor and the transmission system of capacitor
DE102020212257A1 (en) 2020-09-29 2022-03-31 Siemens Energy Global GmbH & Co. KG transformer

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JPH08124764A (en) * 1994-10-20 1996-05-17 Meidensha Corp Soundproof stationary induction electric apparatus
KR20090070913A (en) * 2007-12-27 2009-07-01 주식회사 효성 Noise reduction apparatus for transformer
KR101020714B1 (en) * 2008-09-26 2011-03-09 한국전력공사 Noise reduction device for power transformers
JP2013143476A (en) * 2012-01-11 2013-07-22 Toshiba Corp Stationary induction electric appliance
KR101474729B1 (en) * 2013-11-14 2014-12-19 (주)엠디에스솔루션 Power transformer with double casing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08124764A (en) * 1994-10-20 1996-05-17 Meidensha Corp Soundproof stationary induction electric apparatus
KR20090070913A (en) * 2007-12-27 2009-07-01 주식회사 효성 Noise reduction apparatus for transformer
KR101020714B1 (en) * 2008-09-26 2011-03-09 한국전력공사 Noise reduction device for power transformers
JP2013143476A (en) * 2012-01-11 2013-07-22 Toshiba Corp Stationary induction electric appliance
KR101474729B1 (en) * 2013-11-14 2014-12-19 (주)엠디에스솔루션 Power transformer with double casing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110060867A (en) * 2019-04-30 2019-07-26 全球能源互联网研究院有限公司 Body structure, capacitor and the transmission system of capacitor
DE102020212257A1 (en) 2020-09-29 2022-03-31 Siemens Energy Global GmbH & Co. KG transformer

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