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EP3062320B1 - Assembly for reducing the amount of sound emitted from fluid-cooled transformers or throttles - Google Patents

Assembly for reducing the amount of sound emitted from fluid-cooled transformers or throttles Download PDF

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Publication number
EP3062320B1
EP3062320B1 EP15156920.9A EP15156920A EP3062320B1 EP 3062320 B1 EP3062320 B1 EP 3062320B1 EP 15156920 A EP15156920 A EP 15156920A EP 3062320 B1 EP3062320 B1 EP 3062320B1
Authority
EP
European Patent Office
Prior art keywords
assembly according
sandwich panel
boiler
wall
filler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15156920.9A
Other languages
German (de)
French (fr)
Other versions
EP3062320A1 (en
Inventor
Anton HOLZER
Helmut Pregartner
Günter Pretterhofer
Alfons-Karl Schrammel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP15156920.9A priority Critical patent/EP3062320B1/en
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to PL15156920T priority patent/PL3062320T3/en
Priority to US15/552,360 priority patent/US10777350B2/en
Priority to EP16702043.7A priority patent/EP3224842A1/en
Priority to CN201680012249.1A priority patent/CN107408447B/en
Priority to PCT/EP2016/051083 priority patent/WO2016134888A1/en
Priority to CA2977715A priority patent/CA2977715C/en
Publication of EP3062320A1 publication Critical patent/EP3062320A1/en
Application granted granted Critical
Publication of EP3062320B1 publication Critical patent/EP3062320B1/en
Active legal-status Critical Current
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Classifications

    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches

Definitions

  • the invention relates generally to the technical field of electrical transformers or chokes, in particular to an arrangement for reducing the emission of operating noise of a liquid-cooled transformer or a choke.
  • the vibration excitation of the magnetic core or the electrical coil propagates through the insulating and cooling liquid on the walls of the boiler, so that they are excited to bending vibrations and emit operating noise in the outside.
  • the DE 1 293 329 For example, provides heavy outer panels, wherein the cavity between the outer panel and boiler wall is filled with plastic foam. Also in the DE 1 902 910 and the DE 2 309 564 It is proposed to fill the cavity formed between the cover plate and reinforcement with an easily deformable polyurethane foam.
  • sandwich panels are arranged on the outside of the boiler of a liquid-cooled transformer or a throttle, which act as insulating elements.
  • Each sandwich panel has a hermetically sealed cavity.
  • In the cavity is a composition of a polymeric material and a filler, which composition has a specific gravity of> 2 grams per cubic centimeter.
  • the cavity is completely enclosed by a metallic wall. This hermetic encapsulation ensures that the polymeric material is completely sealed off from external influences.
  • the aging behavior of the polymer during a long period of operation is substantially unchanged and experiences little change in its physical property.
  • epoxy resin as a polymer material is a Metal-plastic compound created that is not flexible in contrast to the prior art, but forms a relatively rigid sandwich construction whose mass is increased by a filler.
  • the sandwich panel according to the invention is comparatively heavier than a metal-plastic-metal construction, but not so difficult that its attachment to the outer wall of the boiler would cause problems.
  • the filling material is particularly well suited for a material with a high specific weight, for example a metal. Particularly cost-effective is the use of so-called Stahlstrahlgut, which are steel grains with a diameter, for. in the range of 1 to 2 mm. Steel blasting material as filler is inexpensive. It is commercially available and is used industrially, for example, for surface treatment.
  • a cost-effective filling material can also be a mineral material, such as quartz sand.
  • a parallelepiped with a rectangular cross-section is particularly easy to install on the outer peripheral surface of the boiler, either between projecting boiler stiffeners or on their front side.
  • each sandwich panel is arranged on the outside between two projecting stiffeners, wherein it completely covers the region of the boiler wall lying between the stiffeners.
  • the connection between sandwich panel and stiffener can be inexpensively produced by a welded joint.
  • Another particularly preferred embodiment of the invention may be constructed so that each sandwich panel is secured to an end face of a stiffener with the interposition of an elastic element by means of a releasable connection.
  • a transformer already in operation or a throttle with sound-absorbing sandwich panels can be retrofitted.
  • an elastic element for example a rubber strip (neoprene or cellular rubber), is arranged between the sandwich panel and the boiler wall or stiffening of the boiler wall.
  • This mechanical decoupling between the insulating panel and the boiler makes it possible to reduce the emission of operating noise particularly efficiently.
  • FIG. 1 shows in a perspective view of a boiler 1 of a transformer, not shown, or a throttle.
  • the boiler 1 has side walls 2, which are provided on their outside with vertically arranged stiffeners 3.
  • Boiler 1 and stiffeners 3 are made of a steel sheet and welded together.
  • the stiffeners 3 can be designed differently, for example as reinforcing ribs or in the form of a profile (eg a U-profile with 150 mm side length and 250 mm leg connection part). They give the boiler 1 mechanical stability, especially in the phase of manufacture, when the interior of the boiler is subjected to a negative pressure.
  • the rectangular region 4 between the stiffeners 3 is excited in operation to bending vibrations and is covered with sandwich panels 5 (in FIG.
  • sandwich panels 5 act as Dämmpaneele, ie they reduce the noise emission occurring during operation.
  • the sandwich panels 5 are plate-shaped structures, which are arranged vertically in their longitudinal extent on the outside of the boiler 1. With their areal extent they cover the bending-vibrating area 4.
  • the sandwich panel 5 is in the The width of the cover plate corresponds to the distance between two stiffeners 3, that is, in a power transformer, for example 600 mm to 800 mm.
  • FIG. 2 shows in a cross section a section between two stiffeners 3.
  • the stiffeners 3 are formed in the form of a U-profile.
  • the legs of the U-profile are welded to the side wall 2 of the boiler.
  • the area 4 of the boiler wall 2 between adjacent opposite legs 3 of the U-profile is covered by a sandwich panel 5.
  • the sandwich panel 5 has a substantially rectangular cross section.
  • a metallic wall 6 surrounds a cavity 7.
  • the cavity 7 is filled with a polymeric material 8 containing a filler 9.
  • the composition between the polymeric material 8 and a filler 9 is selected so that this composition has a specific gravity of at least 2 g / cm 3.
  • the polymer material 8 is an epoxy resin and the filler 9 is a steel blasting material, which are steel grains with a diameter of 1 to 2 mm.
  • This composition of epoxy resin 8 and steel stock 9 has a specific gravity of about 5 g / cm 3 .
  • FIG. 2 is the sandwich panel 5 with the wall facing the boiler wall 2 6 with the interposition of an elastic member 11 at.
  • the elastic element 11 is formed by a plurality of rubber strips extending parallel to the stiffening 1. The rubber strips adhere to the side wall 2 and to the wall 6 by means of an adhesive bond.
  • the wall 6 forms a complete enclosure for the cavity 7, ie the cavity 7 is hermetically sealed.
  • the cavity 7 has an approximately rectangular cross-section. Less the wall thickness corresponds the width of the rectangle about the clear width between adjacent stiffeners 3, ie in a power transformer about 600 mm to 800 mm.
  • the narrow side of the rectangular cavity 7 is about 30 mm.
  • the wall 6 consists in the example shown of a two-piece sheet steel, wherein the one part has the shape of a tub, the other forms a lid on the tub.
  • the steel sheet has a thickness of about 5 mm. Tub and ceiling are welded together. As a result, the polymeric material contained in the cavity 7 8 is completely sealed off from external environmental influences and unaffected in its aging behavior.
  • FIG. 3 shows another preferred embodiment of the invention.
  • the area 4 between adjacent stiffeners 3 is completely covered by a sandwich panel 5.
  • the attachment of the sandwich panel 5 is carried out but not by a welded connection to the legs of the stiffener 3, but on a front side 12.
  • the sandwich panel 5 is screwed by means of screws 13 with the interposition of an elastomeric element 11 to the stiffener 3 .
  • the elastomeric element 11 consists of a strip or a strip of rubber.
  • the wall 6 and the area 4 are spaced apart.
  • the space between the sandwich panel 5 and the bending-vibrating area 4 is air space.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Building Environments (AREA)
  • Casings For Electric Apparatus (AREA)

Description

Technisches GebietTechnical area

Die Erfindung betrifft allgemein das technische Gebiet elektrischer Transformatoren oder Drosseln, insbesondere eine Anordnung zur Verminderung der Emission von Betriebsgeräuschen eines flüssigkeitsgekühlten Transformators bzw. einer Drossel.The invention relates generally to the technical field of electrical transformers or chokes, in particular to an arrangement for reducing the emission of operating noise of a liquid-cooled transformer or a choke.

Stand der TechnikState of the art

Bei Betrieb eines flüssigkeitsgekühlten Transformators oder einer Drossel pflanzt sich die Schwingungsanregung des magnetischen Kerns bzw. der elektrischen Wicklung über die Isolations- und Kühlflüssigkeit auf die Wände des Kessels fort, so dass diese zu Biegeschwingungen angeregt werden und in den Außenraum Betriebsgeräusche abstrahlen.During operation of a liquid-cooled transformer or a choke, the vibration excitation of the magnetic core or the electrical coil propagates through the insulating and cooling liquid on the walls of the boiler, so that they are excited to bending vibrations and emit operating noise in the outside.

Zur Verringerung der Schallabstrahlung sind verschiedene aktiv und passiv wirkende Systeme bekannt. Bei passiv wirkenden Systemen werden Dämmmaßnahmen meist an der Außenseite des Kessels vorgesehen. Die DE 1 293 329 sieht beispielsweise schwere Außenplatten vor, wobei der Hohlraum zwischen Außenplatte und Kesselwand mit Kunststoffschaum gefüllt ist. Auch in der DE 1 902 910 und der DE 2 309 564 wird vorgeschlagen, den Hohlraum, gebildet zwischen Abdeckplatte und Verstärkung mit einem leicht verformbaren Polyurethan-Schaum zu füllen.To reduce the sound radiation different active and passive acting systems are known. In passive systems, insulation measures are usually provided on the outside of the boiler. The DE 1 293 329 For example, provides heavy outer panels, wherein the cavity between the outer panel and boiler wall is filled with plastic foam. Also in the DE 1 902 910 and the DE 2 309 564 It is proposed to fill the cavity formed between the cover plate and reinforcement with an easily deformable polyurethane foam.

Trotz verschiedener Lösungsansätze ist das Problem der Geräuschemission bei Transformatoren bzw. Drosseln bis heute nicht zufrieden stellend gelöst. Zunehmend steigen die Anforderungen hinsichtlich möglichst geringer Betriebsgeräusche, insbesondere dann, wenn ein Transformator oder eine Drossel in der Nähe eines Wohnbereichs installiert werden soll. Problematisch ist insbesondere die geforderte lange Betriebszeit. Die geräuschdämmende Wirkung eines polymeren Werkstoffs, der den am Betriebsort herrschenden Umgebungsbedingungen ausgesetzt ist, nimmt Aufgrund von Alterungseffekten mit zunehmender Betriebsdauer ab.Despite various approaches, the problem of noise emission in transformers or chokes is still not solved satisfactorily. Increasingly, the requirements for the lowest possible increase Operating noise, especially when a transformer or a choke is to be installed near a living area. In particular, the required long operating time is problematic. The sound-absorbing effect of a polymeric material that is exposed to the ambient conditions prevailing at the operating site decreases with increasing operating time due to aging effects.

Darstellung der ErfindungPresentation of the invention

Es ist eine Aufgabe der vorliegenden Erfindung eine Anordnung anzugeben, mit welcher über einen möglichst langen Betriebszeitraum die Schallabstrahlung bei einem Transformator oder Drossel mit möglichst geringem Aufwand vermindert werden kann.It is an object of the present invention to provide an arrangement with which the sound radiation in a transformer or throttle can be reduced over the longest possible period of operation with the least possible effort.

Gelöst wird diese Aufgabe durch eine Anordnung mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen, Aspekte und Wirkungen der Erfindung sind in den abhängigen Ansprüchen definiert.This object is achieved by an arrangement having the features of claim 1. Advantageous embodiments, aspects and effects of the invention are defined in the dependent claims.

Gemäß einem Grundgedanken der Erfindung werden außenseitig am Kessel eines flüssigkeitsgekühlten Transformators oder einer Drossel Sandwich-Paneele angeordnet, die als Dämmelemente wirken. Jedes Sandwich-Paneel weist einen hermetisch abgeschlossenen Hohlraum auf. Im Hohlraum befindet sich eine Zusammensetzung aus einem polymeren Werkstoff und einem Füllstoff, wobei diese Zusammensetzung ein spezifisches Gewicht von >2 Gramm pro Kubikzentimeter aufweist. Der Hohlraum wird von einer metallischen Wandung vollständig umschlossen. Durch diese hermetische Abkapselung wird erreicht, dass der polymere Werkstoff von äußeren Einwirkungen vollständig abgeschottet ist. Damit ist das Alterungsverhalten des Polymers während eines langen Betriebszeitraums im Wesentlichen unverändert und erfährt in seiner physikalischen Eigenschaft kaum eine Änderung. Durch die Verwendung von Epoxidharz als Polymer-Werkstoff wird eine Metall-Kunststoff-Verbindung geschaffen, die im Gegensatz zum Stand der Technik nicht biegeweich ist, sondern eine vergleichsweise biegesteife Sandwichkonstruktion bildet, dessen Masse durch einen Füllstoff vergrößert wird. Mit anderen Worten das erfindungsgemäße Sandwich-Paneel ist zwar vergleichsweise schwerer als eine Metall-Kunststoff-MetallKonstruktion, aber nicht so schwer, dass deren Befestigung an der Außenwand des Kessels Probleme verursachen würde. Durch die Erfindung wird ein vorteilhafter Kompromiss zwischen Masse und schalldämmender Wirkung erzielt.According to a basic concept of the invention, sandwich panels are arranged on the outside of the boiler of a liquid-cooled transformer or a throttle, which act as insulating elements. Each sandwich panel has a hermetically sealed cavity. In the cavity is a composition of a polymeric material and a filler, which composition has a specific gravity of> 2 grams per cubic centimeter. The cavity is completely enclosed by a metallic wall. This hermetic encapsulation ensures that the polymeric material is completely sealed off from external influences. Thus, the aging behavior of the polymer during a long period of operation is substantially unchanged and experiences little change in its physical property. The use of epoxy resin as a polymer material is a Metal-plastic compound created that is not flexible in contrast to the prior art, but forms a relatively rigid sandwich construction whose mass is increased by a filler. In other words, the sandwich panel according to the invention is comparatively heavier than a metal-plastic-metal construction, but not so difficult that its attachment to the outer wall of the boiler would cause problems. By the invention, an advantageous compromise between mass and sound-absorbing effect is achieved.

Als Füllmaterial eignet sich besonders gut ein Werkstoff, mit einem hohen spezifischen Gewicht, zum Beispiel ein Metall. Als besonders kostengünstig erweist sich die Verwendung von so genanntem Stahlstrahlgut, das sind Stahlkörner mit einem Durchmesser z.B. im Bereich von 1 bis 2 mm. Stahlstrahlgut als Füllmaterial ist kostengünstig. Es ist kommerziell verfügbar und wird beispielsweise für die Oberflächenbehandlung industriell eingesetzt.The filling material is particularly well suited for a material with a high specific weight, for example a metal. Particularly cost-effective is the use of so-called Stahlstrahlgut, which are steel grains with a diameter, for. in the range of 1 to 2 mm. Steel blasting material as filler is inexpensive. It is commercially available and is used industrially, for example, for surface treatment.

Ein kostengünstiges Füllmaterial kann aber auch ein mineralischer Werkstoff, wie zum Beispiel Quarzsand, sein.However, a cost-effective filling material can also be a mineral material, such as quartz sand.

Konstruktiv günstig erscheint eine Ausbildung des Sandwich-Paneels in Form eines Quaders. Ein Quader mit einem rechteckigen Querschnitt lässt sich besonders einfach an der Außenumfangsfläche des Kessels montieren, entweder zwischen vorspringenden Kessel-Versteifungen oder an deren Stirnseite.Constructively favorable appears an embodiment of the sandwich panel in the form of a cuboid. A parallelepiped with a rectangular cross-section is particularly easy to install on the outer peripheral surface of the boiler, either between projecting boiler stiffeners or on their front side.

In einer vorteilhaften Ausgestaltung der Erfindung ist jedes Sandwich-Paneel zwischen zwei vorspringenden Versteifungen außenseitig angeordnet, wobei es den zwischen den Versteifungen liegenden Bereich der Kesselwand vollständig abdeckt. Die Verbindung zwischen Sandwich-Paneel und Versteifung kann kostengünstig durch eine Schweißverbindung hergestellt werden.In an advantageous embodiment of the invention, each sandwich panel is arranged on the outside between two projecting stiffeners, wherein it completely covers the region of the boiler wall lying between the stiffeners. The connection between sandwich panel and stiffener can be inexpensively produced by a welded joint.

Eine andere besonders bevorzugte Ausführung der Erfindung kann so konstruiert sein, dass jedes Sandwich-Paneel an einer Stirnseite einer Versteifung unter Zwischenschaltung eines elastischen Elementes mittels einer lösbaren Verbindung befestigt ist. Dadurch ist es möglich, dass die Sandwich-Paneele erst am Einsatzort des Transformators bzw. der Drossel montiert werden können. Dies hat zum einen den Vorteil, dass aufgrund der geringeren Außenabmessungen der Transport dieser großen Industrieanlage erleichtert wird. Zum anderen kann ein bereits in Betrieb befindlicher Transformator bzw. eine Drossel mit geräuschdämmenden Sandwich-Paneelen nachträglich ausgestattet werden.Another particularly preferred embodiment of the invention may be constructed so that each sandwich panel is secured to an end face of a stiffener with the interposition of an elastic element by means of a releasable connection. This makes it possible that the sandwich panels can be mounted only at the place of use of the transformer or the throttle. This has the advantage that due to the smaller external dimensions of the transport of this large industrial plant is facilitated. On the other hand, a transformer already in operation or a throttle with sound-absorbing sandwich panels can be retrofitted.

Hinsichtlich der Dämmwirkung hat es sich als vorteilhaft erwiesen, wenn zwischen Sandwich-Paneel und Kesselwand bzw. Versteifung der Kesselwand ein elastisches Element, zum Beispiel ein Gummistreifen (Neopren oder Zellkautschuk) angeordnet wird. Durch diese mechanische Entkopplung zwischen Dämmpaneel und Kessel lässt sich die Abstrahlung von Betriebsgeräuschen besonders effizient verringern.With regard to the insulating effect, it has proved to be advantageous if an elastic element, for example a rubber strip (neoprene or cellular rubber), is arranged between the sandwich panel and the boiler wall or stiffening of the boiler wall. This mechanical decoupling between the insulating panel and the boiler makes it possible to reduce the emission of operating noise particularly efficiently.

Kurzbeschreibung der ZeichnungBrief description of the drawing

Zur weiteren Erläuterung der Erfindung wird im nachfolgenden Teil der Beschreibung auf Zeichnungen Bezug genommen, aus denen weitere vorteilhafte Ausgestaltungen, Einzelheiten und Weiterbildungen der Erfindung anhand eines nicht einschränkenden Ausführungsbeispiels zu entnehmen sind. Es zeigen:

Figur 1
eine räumliche Darstellung eines Kessels eines Transformators bzw. einer Drossel mit Versteifungen an der Außenseite, wobei der Bereich zwischen Versteifungen mittels Sandwich-Paneelen abgedeckt ist;
Figur 2
eine erst Ausführung der Erfindung als Schnittdarstellung eines Ausschnitts der Kesselwand, wobei der Bereich zwischen zwei Versteifungen mit einem an der Versteifung angeschweißtem Sandwich-Paneel abgedeckt ist;
Figur 3
eine zweite Ausführung der Erfindung als Schnittdarstellung eines Ausschnitts der Kesselwand, wobei an der Stirnseite der Versteifungen jeweils ein Sandwich-Paneel angeschraubt ist.
To further explain the invention, reference is made in the following part of the description to drawings, from which further advantageous embodiments, details and further developments of the invention can be found by way of non-limiting embodiment. Show it:
FIG. 1
a spatial representation of a boiler of a transformer or a throttle with stiffeners on the outside, the area between stiffeners is covered by sandwich panels;
FIG. 2
a first embodiment of the invention as a sectional view of a section of the boiler wall, wherein the area between two stiffeners is covered with a welded to the stiffening sandwich panel;
FIG. 3
a second embodiment of the invention as a sectional view of a section of the boiler wall, wherein on the front side of the stiffeners in each case a sandwich panel is screwed.

Ausführung der ErfindungEmbodiment of the invention

Figur 1 zeigt in einer perspektivischen Ansicht einen Kessel 1 eines nicht näher dargestellten Transformators bzw. einer Drossel. Der Kessel 1 weist Seitenwände 2 auf, die an ihrer Außenseite mit vertikal angeordneten Versteifungen 3 versehen sind. Kessel 1 und Versteifungen 3 sind aus einem Stahlblech hergestellt und miteinander verschweißt. Die Versteifungen 3 können unterschiedlich ausgebildet sein, beispielsweise als Verstärkungsrippen oder in Form eines Profils (z. B. eines U-Profils mit 150 mm Schenkellänge und 250 mm Schenkel-Verbindungsteil). Sie verleihen dem Kessel 1 mechanische Stabilität, insbesondere in der Phase der Herstellung, wenn der Innenraum des Kessels mit einem Unterdruck beaufschlagt wird. Der rechteckförmige Bereich 4 zwischen den Versteifungen 3 wird bei Betrieb zu Biegeschwingungen angeregt und ist mit Sandwich-Paneelen 5 abgedeckt (in Figur 1 ist beispielhaft nur eines dieser Sandwich-Paneele 5 gezeichnet). Diese Sandwich-Paneele 5 wirken als Dämmpaneele, d.h. sie verringern die bei Betrieb auftretende Geräuschemission. Die Sandwich-Paneele 5 sind plattenförmige Gebilde, die in ihrer Längserstreckung vertikal an der Außenseite des Kessels 1 angeordnet sind. Mit ihrer flächenförmigen Erstreckung überdecken Sie den biegeschwingenden Bereich 4. Das Sandwich-Paneel 5 ist in der Form einer schalldämmenden Abdeckplatte ausgebildet, d.h. ihre Länge erstreckt sich vertikal über die gesamte Höhe des Kessels 1. Die Breite der Abdeckplatte entspricht dem Abstand zwischen zwei Versteifungen 3, das heißt bei einem Leistungstransformator zum Beispiel 600 mm bis 800 mm. FIG. 1 shows in a perspective view of a boiler 1 of a transformer, not shown, or a throttle. The boiler 1 has side walls 2, which are provided on their outside with vertically arranged stiffeners 3. Boiler 1 and stiffeners 3 are made of a steel sheet and welded together. The stiffeners 3 can be designed differently, for example as reinforcing ribs or in the form of a profile (eg a U-profile with 150 mm side length and 250 mm leg connection part). They give the boiler 1 mechanical stability, especially in the phase of manufacture, when the interior of the boiler is subjected to a negative pressure. The rectangular region 4 between the stiffeners 3 is excited in operation to bending vibrations and is covered with sandwich panels 5 (in FIG. 1 For example, only one of these sandwich panels 5 is drawn). These sandwich panels 5 act as Dämmpaneele, ie they reduce the noise emission occurring during operation. The sandwich panels 5 are plate-shaped structures, which are arranged vertically in their longitudinal extent on the outside of the boiler 1. With their areal extent they cover the bending-vibrating area 4. The sandwich panel 5 is in the The width of the cover plate corresponds to the distance between two stiffeners 3, that is, in a power transformer, for example 600 mm to 800 mm.

Figur 2 zeigt in einem Querschnitt einen Ausschnitt zwischen zwei Versteifungen 3. Die Versteifungen 3 sind in Form eines U-Profils ausgebildet. Die Schenkel des U-Profils sind an der Seitenwand 2 des Kessels angeschweißt. Der Bereich 4 der Kesselwand 2 zwischen benachbart gegenüberliegenden Schenkeln 3 des U-Profils ist durch ein Sandwich-Paneel 5 abgedeckt. Das Sandwich-Paneel 5 hat einen im Wesentlichen als Rechteck ausgebildeten Querschnitt. Eine metallische Wandung 6 umschließt einen Hohlraum 7. Der Hohlraum 7 ist mit einem polymeren Werkstoff 8 gefüllt, der einen Füllstoff 9 enthält. Gemäß der Erfindung ist die Zusammensetzung zwischen polymeren Werkstoff 8 und Füllstoff 9 so gewählt, dass diese Zusammensetzung ein spezifisches Gewicht von zumindest 2 g/cm3 aufweist. In einer bevorzugten Ausführungsform der Erfindung ist der Polymerwerkstoff 8 ein Epoxidharz und der Füllstoff 9 ein Stahlstrahlgut, das sind Stahlkörner mit einem Durchmesser von 1 bis 2 mm. Diese Zusammensetzung von Epoxidharz 8 und Stahlstrahlgut 9 weist ein spezifisches Gewicht von etwa 5 g/cm3. FIG. 2 shows in a cross section a section between two stiffeners 3. The stiffeners 3 are formed in the form of a U-profile. The legs of the U-profile are welded to the side wall 2 of the boiler. The area 4 of the boiler wall 2 between adjacent opposite legs 3 of the U-profile is covered by a sandwich panel 5. The sandwich panel 5 has a substantially rectangular cross section. A metallic wall 6 surrounds a cavity 7. The cavity 7 is filled with a polymeric material 8 containing a filler 9. According to the invention, the composition between the polymeric material 8 and a filler 9 is selected so that this composition has a specific gravity of at least 2 g / cm 3. In a preferred embodiment of the invention, the polymer material 8 is an epoxy resin and the filler 9 is a steel blasting material, which are steel grains with a diameter of 1 to 2 mm. This composition of epoxy resin 8 and steel stock 9 has a specific gravity of about 5 g / cm 3 .

In dem Ausführungsbeispiel der Figur 2 liegt das Sandwich-Paneel 5 mit der zur Kesselwand 2 zeigenden Wandung 6 unter Zwischenschaltung eines elastischen Elementes 11 an. Das elastische Element 11 ist durch mehrere parallel zur Versteifung 1 verlaufende Gummistreifen gebildet. Die Gummistreifen haften mittels einer Klebeverbindung an der Seitenwand 2 und an der Wandung 6.In the embodiment of FIG. 2 is the sandwich panel 5 with the wall facing the boiler wall 2 6 with the interposition of an elastic member 11 at. The elastic element 11 is formed by a plurality of rubber strips extending parallel to the stiffening 1. The rubber strips adhere to the side wall 2 and to the wall 6 by means of an adhesive bond.

Wie bereits oben erwähnt, bildet die Wandung 6 für den Hohlraum 7 eine vollständige Einhausung, d.h. der Hohlraum 7 ist hermetisch abgeschlossen. Der Hohlraum 7 hat einen etwa rechteckigen Querschnitt. Abzüglich der Wandstärke entspricht die Breite des Rechtecks etwa der lichten Weite zwischen benachbarten Versteifungen 3, d.h. bei einem Leistungstransformator etwa 600 mm bis 800 mm. Die Schmalseite des rechteckförmigen Hohlraums 7 ist etwa 30 mm. Die Wandung 6 besteht im dargestellten Beispiel aus einem zweiteiligen Stahlblech, wobei der eine Teil die Form eine Wanne aufweist, der andere einen Deckel auf die Wanne bildet. Das Stahlblech hat eine Dicke von etwa 5 mm. Wanne und Decke sind miteinander verschweißt. Dadurch ist der im Hohlraum 7 enthaltene polymere Werkstoff 8 von äußeren Umgebungseinflüssen vollständig abgeschottet und in seinem Alterungsverhalten unbeeinflusst.As already mentioned above, the wall 6 forms a complete enclosure for the cavity 7, ie the cavity 7 is hermetically sealed. The cavity 7 has an approximately rectangular cross-section. Less the wall thickness corresponds the width of the rectangle about the clear width between adjacent stiffeners 3, ie in a power transformer about 600 mm to 800 mm. The narrow side of the rectangular cavity 7 is about 30 mm. The wall 6 consists in the example shown of a two-piece sheet steel, wherein the one part has the shape of a tub, the other forms a lid on the tub. The steel sheet has a thickness of about 5 mm. Tub and ceiling are welded together. As a result, the polymeric material contained in the cavity 7 8 is completely sealed off from external environmental influences and unaffected in its aging behavior.

Figur 3 zeigt eine andere bevorzugte Ausführungsform der Erfindung. Auch hier ist der Bereich 4 zwischen benachbarten Versteifungen 3 vollständig durch ein Sandwich-Paneel 5 abgedeckt. Die Befestigung des Sandwich-Paneels 5 erfolgt aber nicht durch eine Schweißverbindung an den Schenkeln der Versteifung 3, sondern an einer Stirnseite 12. An dieser Stirnseite 12 ist mittels Schrauben 13 das Sandwich-Paneel 5 unter Zwischenlage eines elastomere Elementes 11 an der Versteifung 3 angeschraubt. Das elastomere Element 11 besteht aus einer Leiste bzw. einem Streifen aus Gummi. Die Wandung 6 und der Bereich 4 sind voneinander beabstandet. Der Zwischenraum zwischen Sandwich-Paneel 5 und biegeschwingenden Bereich 4 ist Luftraum. FIG. 3 shows another preferred embodiment of the invention. Again, the area 4 between adjacent stiffeners 3 is completely covered by a sandwich panel 5. The attachment of the sandwich panel 5 is carried out but not by a welded connection to the legs of the stiffener 3, but on a front side 12. At this end face 12, the sandwich panel 5 is screwed by means of screws 13 with the interposition of an elastomeric element 11 to the stiffener 3 , The elastomeric element 11 consists of a strip or a strip of rubber. The wall 6 and the area 4 are spaced apart. The space between the sandwich panel 5 and the bending-vibrating area 4 is air space.

Zusammenstellung der verwendeten BezugszeichenCompilation of the reference numbers used

11
Kesselboiler
22
SeitenwandSide wall
33
Versteifungstiffening
44
Bereich auf 2Area on 2
55
Sandwich-PaneelSandwich panel
66
Wandungwall
77
Hohlraumcavity
88th
Polymerer WerkstoffPolymeric material
99
Füllstofffiller
1010
Schweißverbindungwelded joint
1111
elastisches Elementelastic element
1212
Stirnseitefront
1313
Schraubverbindungscrew

Claims (10)

  1. Assembly for reducing the amount of sound emitted from fluid-cooled transformers or throttles, comprising a boiler (1), which has struts (3) on the outside on its side walls (2), wherein a region (4) lying between struts (3) is covered in each case by a sandwich panel (5) fastened to the struts (3), wherein each sandwich panel (5) has a metal wall (6), which hermetically seals a hollow space (7), wherein the hollow space (7) is filled with a composite consisting of a polymer material (8) and a filler (9), and wherein the composite has a specific weight of >2 grams per cubic centimetre.
  2. Assembly according to claim 1, characterised in that the polymer material (8) is an epoxy resin.
  3. Assembly according to claim 1 or 2, characterised in that the filler (9) is a metal material.
  4. Assembly according to claim 1 or 2, characterised in that the filler (9) is quartz sand.
  5. Assembly according to claim 3 or 4, characterised in that each sandwich panel (5) is embodied in a cuboid-shaped manner.
  6. Assembly according to claim 5, such that each sandwich panel (5) is arranged between adjacent struts (3) and the connection between the metal wall (6) of a sandwich panel (5) and a strut (3) is produced by means of a welding connection (10).
  7. Assembly according to claim 6, characterised in that each wall (6) of a sandwich panel (5) lying towards the side wall (2) of the boiler (1) is arranged with an elastic element (11) inserted therebetween and abutting against the region (4).
  8. Assembly according to claim 5, characterised in that each sandwich panel (5) is fastened to an end face (12) of a strut (3) facing away from the side wall (2) of the boiler (1) with an elastic element (11) inserted therebetween by means of a releasable connection (13).
  9. Assembly according to claim 3, characterised in that the metal filler (9) is formed by steel abrasive.
  10. Assembly according to claim 7 or 8, characterised in that the elastic element (11) is formed by a strip of elastomer.
EP15156920.9A 2015-02-27 2015-02-27 Assembly for reducing the amount of sound emitted from fluid-cooled transformers or throttles Active EP3062320B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
PL15156920T PL3062320T3 (en) 2015-02-27 2015-02-27 Assembly for reducing the amount of sound emitted from fluid-cooled transformers or throttles
EP15156920.9A EP3062320B1 (en) 2015-02-27 2015-02-27 Assembly for reducing the amount of sound emitted from fluid-cooled transformers or throttles
EP16702043.7A EP3224842A1 (en) 2015-02-27 2016-01-20 Arrangement for reducing the radiation of noise from liquid-cooled transformers or chokes
CN201680012249.1A CN107408447B (en) 2015-02-27 2016-01-20 For reducing the arrangement of the noise radiation from liquid-cooled transformer or choke coil
US15/552,360 US10777350B2 (en) 2015-02-27 2016-01-20 Arrangement for reducing radiation of noise from liquid-cooled transformers or chokes
PCT/EP2016/051083 WO2016134888A1 (en) 2015-02-27 2016-01-20 Arrangement for reducing the radiation of noise from liquid-cooled transformers or chokes
CA2977715A CA2977715C (en) 2015-02-27 2016-01-20 Arrangement for reducing radiation of noise from liquid-cooled transformers or chokes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15156920.9A EP3062320B1 (en) 2015-02-27 2015-02-27 Assembly for reducing the amount of sound emitted from fluid-cooled transformers or throttles

Publications (2)

Publication Number Publication Date
EP3062320A1 EP3062320A1 (en) 2016-08-31
EP3062320B1 true EP3062320B1 (en) 2017-10-18

Family

ID=52672162

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Application Number Title Priority Date Filing Date
EP15156920.9A Active EP3062320B1 (en) 2015-02-27 2015-02-27 Assembly for reducing the amount of sound emitted from fluid-cooled transformers or throttles
EP16702043.7A Withdrawn EP3224842A1 (en) 2015-02-27 2016-01-20 Arrangement for reducing the radiation of noise from liquid-cooled transformers or chokes

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP16702043.7A Withdrawn EP3224842A1 (en) 2015-02-27 2016-01-20 Arrangement for reducing the radiation of noise from liquid-cooled transformers or chokes

Country Status (6)

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US (1) US10777350B2 (en)
EP (2) EP3062320B1 (en)
CN (1) CN107408447B (en)
CA (1) CA2977715C (en)
PL (1) PL3062320T3 (en)
WO (1) WO2016134888A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI619127B (en) * 2017-06-09 2018-03-21 Fortune Electric Co Ltd Vacuum noise suppression device for transformer
KR102210362B1 (en) * 2019-06-13 2021-02-03 현대일렉트릭앤에너지시스템(주) Soundproofing Transformer
JP7523977B2 (en) 2020-07-17 2024-07-29 フクビ化学工業株式会社 Duct structure

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293329C2 (en) 1967-05-18 1974-01-24 Brown, Boveri & Cie. AG, 6800 Mannheim-Käfertal ARRANGEMENT TO REDUCE SOUND RADIATION FROM TRANSFORMERS OR THROTTLE COIL BOILERS
DE2309564C3 (en) 1973-02-26 1978-12-07 Transformatoren Union Ag, 7000 Stuttgart Method and device for producing. Positioning of combined soundproofing and soundproofing cells in the area of the outer walls of transformers or inductor boilers
US4215763A (en) * 1978-08-21 1980-08-05 General Electric Company Resonant sound attenuator for transformers
EP1889975A1 (en) * 2006-08-16 2008-02-20 Calenberg Ingenieure planmässig elastisch lagern GmbH Sound-proofing device
US20080099275A1 (en) * 2006-10-31 2008-05-01 Robert Vaughan Seel Sound Attenuation Enclosure
UA100760C2 (en) * 2008-08-19 2013-01-25 Сименс Акциенгезельшафт Noise-reducing device and method for reducing noise
US8028800B2 (en) * 2009-04-10 2011-10-04 Saint-Gobain Performance Plastics Rencol Limited Acoustic damping compositions
CN201893422U (en) * 2010-11-30 2011-07-06 比亚迪股份有限公司 Lithium-ion secondary battery
CN201889013U (en) * 2010-11-30 2011-07-06 张志明 Rotary damping device
EP2856477B1 (en) * 2012-06-05 2017-10-18 Siemens Aktiengesellschaft Tank for liquid-filled transformers or inductors
DE102012012442A1 (en) * 2012-06-22 2013-12-24 Loos & Co. Kg Sound-absorbing sandwich-like composite metal sheet for installation between core of oil-cooled transformer and transformer kettle walls, has plastic layer designed as shield against electromagnetic scattering fields in inner side of kettle
WO2014186888A1 (en) * 2013-05-21 2014-11-27 Trench Limited Integrated sound shield for air core reactor
US20150352950A1 (en) * 2014-06-10 2015-12-10 Thermo King Corporation Integrated noise suppression mechanism and method of using the same
MX355305B (en) * 2015-10-14 2018-04-12 Prolec Ge Int S De R L De C V Acoustic panels for transformer.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN107408447B (en) 2019-04-16
US10777350B2 (en) 2020-09-15
EP3062320A1 (en) 2016-08-31
US20180047500A1 (en) 2018-02-15
CA2977715A1 (en) 2016-09-01
EP3224842A1 (en) 2017-10-04
WO2016134888A1 (en) 2016-09-01
PL3062320T3 (en) 2018-03-30
CN107408447A (en) 2017-11-28
CA2977715C (en) 2019-01-15

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