EP3224842A1 - Anordnung zur verminderung der schallabstrahlung von flüssigkeitsgekühlten transformatoren oder drosseln - Google Patents
Anordnung zur verminderung der schallabstrahlung von flüssigkeitsgekühlten transformatoren oder drosselnInfo
- Publication number
- EP3224842A1 EP3224842A1 EP16702043.7A EP16702043A EP3224842A1 EP 3224842 A1 EP3224842 A1 EP 3224842A1 EP 16702043 A EP16702043 A EP 16702043A EP 3224842 A1 EP3224842 A1 EP 3224842A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sandwich panel
- arrangement according
- stiffeners
- boiler
- 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.)
- Withdrawn
Links
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
- 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 outer space.
- DE 1 293 329 provides heavy outer plates, the cavity between the outer plate and the vessel wall being filled with plastic foam. It is also proposed in DE 1 902 910 and DE 2 309 564 that the cavity formed between
- 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 hermetic one
- epoxy resin as a polymer material is a Metal-plastic compound created, which is not flexible in contrast to the prior art, but a
- the sandwich panel according to the invention forms comparatively 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 their 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 for example for
- An inexpensive filler can also be any inexpensive filler.
- each sandwich panel between two projecting stiffeners is arranged on the outside, wherein it between the
- Stiffening 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. This makes it possible that the sandwich panels only at the site of the transformer or the
- Throttle can be mounted. This has on the one hand
- 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.
- Figure 1 is a perspective view of a boiler of a
- Boiler wall the area between two stiffeners being covered by a sandwich panel welded to the stiffener; a second embodiment of the invention as
- FIG 1 shows a perspective view of a boiler 1 of a transformer or a reactor, not shown.
- 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
- Stiffeners 3 is excited in operation to bending vibrations and is covered with sandwich panels 5 (in Figure 1, for example, only one of these sandwich panels 5 drawn). These sandwich panels 5 act as insulating panels, i. they reduce the operating noise
- the sandwich panels 5 are plate-shaped structures which in their longitudinal extent vertically to the
- the sandwich panel 5 is in the Formed a sound-insulating cover plate, ie, their length extends vertically over the entire height of the boiler 1.
- the width of the cover plate corresponds to the distance between two stiffeners 3, that is at 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 designed 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 is between
- polymeric material 8 and filler 9 chosen 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 .
- the sandwich panel 5 bears against the wall 6 facing the boiler wall 2 with the interposition of an elastic element 11.
- the elastic member 11 is connected through a plurality of parallel to
- Cavity 7 a complete enclosure, 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 at a
- 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.
- the polymer material 8 contained in the cavity 7 is from the outside
- 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.
- 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.
- Gap between sandwich panel 5 and bending-vibrating area 4 is airspace.
Landscapes
- 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)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15156920.9A EP3062320B1 (de) | 2015-02-27 | 2015-02-27 | Anordnung zur Verminderung der Schallabstrahlung von flüssigkeitsgekühlten Transformatoren oder Drosseln |
| PCT/EP2016/051083 WO2016134888A1 (de) | 2015-02-27 | 2016-01-20 | Anordnung zur verminderung der schallabstrahlung von flüssigkeitsgekühlten transformatoren oder drosseln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3224842A1 true EP3224842A1 (de) | 2017-10-04 |
Family
ID=52672162
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15156920.9A Active EP3062320B1 (de) | 2015-02-27 | 2015-02-27 | Anordnung zur Verminderung der Schallabstrahlung von flüssigkeitsgekühlten Transformatoren oder Drosseln |
| EP16702043.7A Withdrawn EP3224842A1 (de) | 2015-02-27 | 2016-01-20 | Anordnung zur verminderung der schallabstrahlung von flüssigkeitsgekühlten transformatoren oder drosseln |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15156920.9A Active EP3062320B1 (de) | 2015-02-27 | 2015-02-27 | Anordnung zur Verminderung der Schallabstrahlung von flüssigkeitsgekühlten Transformatoren oder Drosseln |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10777350B2 (de) |
| EP (2) | EP3062320B1 (de) |
| CN (1) | CN107408447B (de) |
| CA (1) | CA2977715C (de) |
| PL (1) | PL3062320T3 (de) |
| WO (1) | WO2016134888A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI619127B (zh) * | 2017-06-09 | 2018-03-21 | Fortune Electric Co Ltd | Vacuum noise suppression device for transformer |
| KR102210362B1 (ko) * | 2019-06-13 | 2021-02-03 | 현대일렉트릭앤에너지시스템(주) | 저소음 변압기 |
| JP7523977B2 (ja) * | 2020-07-17 | 2024-07-29 | フクビ化学工業株式会社 | ダクト構造 |
| EP4718439A1 (de) * | 2024-09-26 | 2026-04-01 | Hitachi Energy Ltd | Akustikplatte, elektrogerät und verfahren zur montage eines elektrogeräts |
| EP4718483A1 (de) * | 2024-09-26 | 2026-04-01 | Hitachi Energy Ltd | Akustikplatte, elektrogerät und verfahren zur montage eines elektrogeräts |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1293329C2 (de) | 1967-05-18 | 1974-01-24 | Brown, Boveri & Cie. AG, 6800 Mannheim-Käfertal | Anordnung zur verminderung der schallabstrahlung von transformatorenoder drosselspulenkesseln |
| DE2309564C3 (de) | 1973-02-26 | 1978-12-07 | Transformatoren Union Ag, 7000 Stuttgart | Verfahren und Vorrichtung zur Her- . stellung kombinierter Schalldämpfungsund Schalldämmungszellen im Bereich der Außenwandungen von Transformatorenoder Drosselspulenkesseln |
| US4215763A (en) * | 1978-08-21 | 1980-08-05 | General Electric Company | Resonant sound attenuator for transformers |
| EP1889975A1 (de) | 2006-08-16 | 2008-02-20 | Calenberg Ingenieure planmässig elastisch lagern GmbH | Schallschutzanordnung |
| US20080099275A1 (en) * | 2006-10-31 | 2008-05-01 | Robert Vaughan Seel | Sound Attenuation Enclosure |
| US8235169B2 (en) * | 2008-08-19 | 2012-08-07 | Siemens Aktiengesellschaft | Noise-reducing device and method for reducing noise |
| WO2010118358A2 (en) * | 2009-04-10 | 2010-10-14 | Saint-Gobain Performance Plastics Corporation | Acoustic damping compositions |
| CN201893422U (zh) * | 2010-11-30 | 2011-07-06 | 比亚迪股份有限公司 | 一种锂离子二次电池 |
| CN201889013U (zh) * | 2010-11-30 | 2011-07-06 | 张志明 | 一种转动阻尼装置 |
| KR101944967B1 (ko) * | 2012-06-05 | 2019-02-01 | 지멘스 악티엔게젤샤프트 | 액체 충전 변압기 또는 인덕터용 탱크 |
| DE102012012442A1 (de) * | 2012-06-22 | 2013-12-24 | Loos & Co. Kg | Neue Verwendung für schalldämmendes Verbundblech |
| CA2912946C (en) * | 2013-05-21 | 2018-03-20 | 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 (es) * | 2015-10-14 | 2018-04-12 | Prolec Ge Int S De R L De C V | Paneles acústicos para transformador. |
-
2015
- 2015-02-27 EP EP15156920.9A patent/EP3062320B1/de active Active
- 2015-02-27 PL PL15156920T patent/PL3062320T3/pl unknown
-
2016
- 2016-01-20 CN CN201680012249.1A patent/CN107408447B/zh active Active
- 2016-01-20 WO PCT/EP2016/051083 patent/WO2016134888A1/de not_active Ceased
- 2016-01-20 CA CA2977715A patent/CA2977715C/en active Active
- 2016-01-20 US US15/552,360 patent/US10777350B2/en active Active
- 2016-01-20 EP EP16702043.7A patent/EP3224842A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN107408447B (zh) | 2019-04-16 |
| US10777350B2 (en) | 2020-09-15 |
| WO2016134888A1 (de) | 2016-09-01 |
| EP3062320B1 (de) | 2017-10-18 |
| EP3062320A1 (de) | 2016-08-31 |
| US20180047500A1 (en) | 2018-02-15 |
| PL3062320T3 (pl) | 2018-03-30 |
| CA2977715C (en) | 2019-01-15 |
| CA2977715A1 (en) | 2016-09-01 |
| CN107408447A (zh) | 2017-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3062320B1 (de) | Anordnung zur Verminderung der Schallabstrahlung von flüssigkeitsgekühlten Transformatoren oder Drosseln | |
| EP2856477B1 (de) | Kessel für flüssigkeitsgefüllte transformatoren oder drosseln | |
| DE102017106019A1 (de) | Schwingungstilger mit Auslenkungsbegrenzern für seine an zwei Enden elastisch gelagerte Tilgermasse | |
| DE102009050814B4 (de) | Stampferfuß für einen Vibrationsstampfer | |
| DE1526652A1 (de) | Pumpaggregat und mit einem solchen versehener Brennstofftank | |
| EP3065129B1 (de) | Anordnung zur Verringerung der Schallemission eines Transformators oder einer Drossel | |
| DE102004042100A1 (de) | Körperschallentkoppelnde Befestigungsvorrichtung und Magnetresonanzgerät | |
| DE102015215454A1 (de) | Vorrichtung zur Dämpfung von Schall mit einer bekannten Frequenz und einer Amplitude, Kühlungssystem sowie elektrische Anlage mit der Vorrichtung | |
| DE102014113756A1 (de) | Vorrichtung zur Herstellung von Betonformteilen | |
| DE202010010415U1 (de) | Koppelelement eines Lärmschutzwandelementes mit dem Pfosten | |
| DE102012100697A1 (de) | Anordnung zur Geräuschminderung für eine große elektrische Maschine | |
| DE2225177A1 (de) | Lamellierter eisenkern fuer transformatoren | |
| DE2425419A1 (de) | Vorrichtung zur lagerung von bauteilen in einer tragenden konstruktion insbesondere in fahrzeugen | |
| AT520050B1 (de) | Schallschutz, insbesondere für Luftdrosselspulen | |
| DE202011005339U1 (de) | Leichtbauformteil | |
| DE102016207165B4 (de) | Verschlusselement zum Verschließen einer Öffnung in einem Kraftstoffbehälter | |
| DE102007006549A1 (de) | Stoßfänger für Kraftfahrzeuge | |
| DE2256991A1 (de) | Verfahren und vorrichtung zum aussparen von wandnischen beim vergiessen von beton zur herstellung von betonwaenden | |
| DE202010010416U1 (de) | Koppelelement eines Lärmschutzwandelementes mit dem Pfosten | |
| DE7422122U (de) | Rütteleinrichtung | |
| DE1181887B (de) | Unstarre Dichtung der Fugen von zusammen-gesetzten schalldaemmenden Waenden | |
| DE202014006221U1 (de) | Tank für die Bereitstellung von Frischwasser und/oder zum Sammeln von Abwasser in einem Schienenfahrzeug | |
| DE29622725U1 (de) | Schwingungsdämpfer, insbesondere für Transformatoren | |
| DE1559331C (de) | Verbesserung der Luftschalldämmung dynamisch biegesteifer Schalen, wie Wandschalen, Türen, Schallabschirmungen u. dgl | |
| DD289978A5 (de) | Koerperschalldaemmung und -daempfung fuer fahrzeuge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20170628 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: G10K 11/16 20060101AFI20180807BHEP Ipc: H01F 27/33 20060101ALI20180807BHEP Ipc: G10K 11/168 20060101ALI20180807BHEP |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20180928 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20190209 |