EP3143670A1 - Funkenstreckenanordnung mit verbesserter kühlung - Google Patents
Funkenstreckenanordnung mit verbesserter kühlungInfo
- Publication number
- EP3143670A1 EP3143670A1 EP15722198.7A EP15722198A EP3143670A1 EP 3143670 A1 EP3143670 A1 EP 3143670A1 EP 15722198 A EP15722198 A EP 15722198A EP 3143670 A1 EP3143670 A1 EP 3143670A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spark gap
- cooling medium
- gap arrangement
- arrangement according
- housing
- 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- Withdrawn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
- 238000001816 cooling Methods 0.000 title claims abstract description 15
- 239000002826 coolant Substances 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- -1 gravel Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 229920000271 Kevlar® Polymers 0.000 claims description 2
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 239000004761 kevlar Substances 0.000 claims description 2
- 239000011226 reinforced ceramic Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 description 1
- 241000233805 Phoenix Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/04—Housings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/15—Details of spark gaps for protection against excessive pressure
Definitions
- the invention relates to a spark gap arrangement with improved cooling.
- spark gaps are used to ensure safe protection of subsequent resources. Spark gaps generally have two spark gap electrodes, between which a plasma discharge occurs upon reaching or exceeding a predetermined voltage, which is also referred to as an arc.
- the spark gaps are typically located in a flameproof enclosure.
- Other dangers are e.g. a pressure wave, which results from a short-term strong warming. This pressure wave can e.g. lead to damage in control cabinets.
- a plasma discharge, in particular within a housing not only leads to one
- encapsulated spark gaps have been designed in the past that have an elongated drainage channel.
- the invention is based on the object to provide an improved arrangement that is cost-effective and also provides a good cooling.
- the object is achieved by the features of the independent claims.
- Advantageous embodiments of the invention are specified in the subclaims.
- Fig. 1 is a schematic representation of an inventive
- FIG. 1 shows a spark gap arrangement with improved cooling 1 according to various embodiments of the invention.
- the arrangement initially has at least two spark gap electrodes E ; E 2 within a housing G on.
- the spark gap also has other spark gap electrodes, eg auxiliary electrodes for triggering the ignition or the like.
- further electrodes can be introduced in order to determine the state of aging of the spark gap arrangement alone or in interaction with the at least two spark gap electrodes Ei, E 2 .
- the housing G furthermore has a blow-out channel K through which plasma can escape from the housing G when the spark gap is ignited.
- a cooling medium M with a large surface is introduced into the blow-out duct K, so that plasma flowing through the cooling medium M is cooled.
- a cooling medium M has shown, which has an open porous material, wherein the porosity is preferably between 0, 1 and ⁇ 1, in particular ⁇ 0.7 is selected.
- Porosity is defined as the ratio of void volume to total volume.
- the total porosity of a substance is made up of the sum of the cavities that are in contact with each other and with the environment (open porosity, useful porosity) and the unconnected cavities (closed or dead-end porosity).
- porosities of 0.1 to 0.7 are preferably used.
- materials with a porosity of between 0.7 and nearly 1 may also be used, e.g. the strength of the material is of minor importance, or phase transition effects are used.
- the cooling medium M provides a honeycomb-like structure, since here the porosity is particularly high, i. the cooling to be achieved is also particularly high.
- the honeycomb structure which can be understood in the exhaust duct K as adjacent tubes, the discharge direction is essentially unobstructed, so that a particularly well-conducted flow can be brought about.
- honeycomb structure is not limiting in the sense of a hexagonal honeycomb to understanding but as a bundle of adjacent tubes provided with substantially similar cross-section tubes. That The tube cross section can also be round or polygonal.
- cooling media M may be electrically conductive or non-conductive. Due to the respective configuration of housings G, however, limitations that are necessary for the person skilled in the art may arise.
- ceramic, polymer, metal or the like can be used as exemplary cooling media M.
- ceramics are (fiber reinforced) ceramics based on eg C / C, C / SiC, SiC / SiC and Al 2 O 3 Al 2 O 3 , preferred because of their high thermal shock resistance.
- the cooling medium M may also have a granular material.
- the cooling medium M may be selected from a group comprising sand, gravel, metal ball, metal chips, ceramic ball, polymer balls.
- the cooling medium M may also comprise fiber-reinforced ceramics.
- the cooling medium M may also have a polymer selected from the group polyoxymethylene (POM), polymethyl methacrylate (PMMA), polytetrafluoroethylene (PTFE), polyamide 66, or the cooling medium has alternatively or additionally a metal selected from the group iron , Copper or an alloy with iron or copper, eg WCu on.
- the cooling medium M may alternatively or additionally comprise a fiber material, in particular Kevlar or an aramid fiber.
- the surface in the discharge channel K is increased by the introduction of a cooling medium M, whereby a better cooling of the plasma is provided.
- the cooling medium M may also have a combination of different materials and / or material forms.
- aramid fibers and a granular ceramic can be introduced as a cooling medium M in the discharge channel K, this combination is only to be understood as an example.
- materials for the cooling medium M with a high temperature resistance and a high thermal shock resistance can be used.
- porous materials are used particularly advantageously.
- the absorbed by the cooling medium M energy is, for example, relatively quickly delivered to the environment or stored in a heat capacity. This can e.g. be provided by the cooling medium M and / or the housing G.
- the hot exhaust gas and energy can be removed by a phase transformation. That the cooling medium M may e.g. pass over in part or completely into another phase upon heat input and slowly release this energy during the reverse transformation.
- the introduced cooling medium M preferably occupies no additional volume, the required installation space is reduced.
- the cooling medium M can also assume a mechanical stabilizing task for the housing G and / or the spark gap arrangement as a whole in individual embodiments.
- the invention enables a compact design. This can also be achieved a saving of required material.
- a free-flowing cooling medium M the introduction into almost any formations of the blow-out channel K is possible.
- many of the listed cooling media, such as sands, are available at low cost.
Landscapes
- Plasma Technology (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014209261.2A DE102014209261A1 (de) | 2014-05-15 | 2014-05-15 | Funkenstreckenanordnung mit verbesserter Kühlung |
| PCT/EP2015/060540 WO2015173279A1 (de) | 2014-05-15 | 2015-05-13 | Funkenstreckenanordnung mit verbesserter kühlung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3143670A1 true EP3143670A1 (de) | 2017-03-22 |
Family
ID=53175518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15722198.7A Withdrawn EP3143670A1 (de) | 2014-05-15 | 2015-05-13 | Funkenstreckenanordnung mit verbesserter kühlung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3143670A1 (de) |
| CN (1) | CN106537698A (de) |
| DE (1) | DE102014209261A1 (de) |
| WO (1) | WO2015173279A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005023163A1 (de) * | 2005-05-19 | 2006-11-23 | Schaltbau Gmbh | Löschkammer zum Löschen von Gleichstromlichtbögen |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2664518A (en) * | 1951-04-26 | 1953-12-29 | Electric Service Mfg Company | Expulsion type lightning arrester |
| DE19619334A1 (de) * | 1996-05-14 | 1997-11-20 | Dehn & Soehne | Verfahren zur Löschung des Lichtbogens des Netzfolgestromes in einer Funkenstrecke sowie Funkenstreckenanordnung zur Durchführung des Verfahrens |
| AT405112B (de) * | 1997-02-12 | 1999-05-25 | Felten & Guilleaume Ag Oester | Überspannungsableiteinrichtung |
| DE19845889B4 (de) * | 1998-10-06 | 2007-03-01 | Dehn + Söhne GmbH + Co KG | Funkenstreckenanordnung |
| DE19951945A1 (de) * | 1999-10-28 | 2001-05-03 | Daimler Chrysler Ag | Halbleiterbauelement mit Seitenwandmetallisierung |
| DE10338835B4 (de) * | 2003-08-21 | 2016-06-02 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzeinrichtung |
| DE202004020260U1 (de) * | 2004-12-28 | 2005-02-24 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzeinrichtung |
| DE102005015401B4 (de) * | 2005-01-10 | 2014-03-20 | Dehn + Söhne Gmbh + Co. Kg | Überspannungsableiter mit zwei divergierenden Elektroden und einer zwischen den Elektroden wirkenden Funkenstrecke |
| DE102007015931A1 (de) * | 2007-01-04 | 2008-07-10 | Dehn + Söhne Gmbh + Co. Kg | Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische Hochleistungsfunkenstrecke |
-
2014
- 2014-05-15 DE DE102014209261.2A patent/DE102014209261A1/de not_active Withdrawn
-
2015
- 2015-05-13 WO PCT/EP2015/060540 patent/WO2015173279A1/de not_active Ceased
- 2015-05-13 EP EP15722198.7A patent/EP3143670A1/de not_active Withdrawn
- 2015-05-13 CN CN201580020471.1A patent/CN106537698A/zh active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005023163A1 (de) * | 2005-05-19 | 2006-11-23 | Schaltbau Gmbh | Löschkammer zum Löschen von Gleichstromlichtbögen |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2015173279A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014209261A1 (de) | 2015-11-19 |
| CN106537698A (zh) | 2017-03-22 |
| WO2015173279A1 (de) | 2015-11-19 |
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| 17P | Request for examination filed |
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