EP0247693A2 - Heating device for deicing railway switches - Google Patents

Heating device for deicing railway switches Download PDF

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Publication number
EP0247693A2
EP0247693A2 EP87200966A EP87200966A EP0247693A2 EP 0247693 A2 EP0247693 A2 EP 0247693A2 EP 87200966 A EP87200966 A EP 87200966A EP 87200966 A EP87200966 A EP 87200966A EP 0247693 A2 EP0247693 A2 EP 0247693A2
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EP
European Patent Office
Prior art keywords
radiators
heating
heating system
heated
switches
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EP87200966A
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German (de)
French (fr)
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EP0247693A3 (en
Inventor
Franz Plattner
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/24—Heating of switches

Definitions

  • the present invention relates to a heating system for de-icing train switches using a warm liquid for heat conduction and distribution.
  • the object of the present invention is to eliminate the above-mentioned deficiencies, whereby a heating system is to be proposed which operates with a minimum amount of energy, distributes the heat evenly over the parts of the switch to be de-iced and ensures an almost constant supply of heat.
  • a heating system for de-icing train switches characterized by a heat source removed from the switches, radiators which are arranged in the area of the switch parts, and pipes which connect the heat source and the radiators in such a way that they form a closed circuit.
  • the invention provides that the heat is transported and distributed via a liquid heated outside the effective range of the deicing.
  • a liquid is capable of absorbing a significant amount of energy at a low temperature, ensuring that the heat input is relatively constant for all parts to be de-iced.
  • the heating system regulates itself thanks to the minimal temperature difference required for heat conduction. A part that is only a few degrees colder than another part will therefore automatically absorb a considerably larger amount of heat.
  • the heating system consists of a heat group l that heats the heat-conducting liquid, of a circuit formed by pipes 2 for conducting and distributing the heating liquid, and of radiators 3, 4, 5 that transfer the heat to the parts of the switch to be de-iced.
  • the direction of flow of the liquid is indicated by arrows.
  • the parts to be heated are preferably the fixed rails 6 and the movable cast steel supports 7 for the movable sections of the rails 8.
  • the tie rods 9 of the switch can also be heated.
  • the points to be heated can be connected in series or in parallel.
  • a mixed circuit is shown in FIG.
  • the heat group l can be fed by various types of energy sources, e.g. B. it can be operated by means of electrical resistors, gas burners or liquid fuel burners, etc.
  • the heat group has a structure which is known per se and is provided with all those components which are necessary for the operation of a heating circuit, such as, for example, circulation pumps, Heaters, thermostats, etc. It is obvious that the hot liquid could also be supplied by a heat group that feeds several switches.
  • the heat transfer from the circuit to the part of the switch to be heated mainly takes place via the metallic contact between the parts.
  • the corresponding heating element 3 has the shape of a preferably flat tube which is fastened to the rail by means of a bracket 10 or by soldering or the like.
  • the radiators 3 are provided with an insulating shield 11 on the outer surface in order to limit energy losses.
  • the radiator 3 contains the flow pipe and the return pipe at the same time. In this way, the radiators for the supports 7 can be connected in parallel via connection pieces schematically indicated by l2.
  • the radiators 4 have a comb-like shape corresponding to the standardized base of the carrier.
  • the circuit is made by inserting the radiator on each side into the gap between the upper and lower plates of the support base 7 with a connector l3.
  • FIG. 4 shows a variant for heating the carrier 7.
  • the liquid circuit is established by the gap between the upper and lower plate of the carrier 7 with the introduction and welding of sheets 14 and the formation of openings 15 is tightly closed in the ribs.
  • the heating system according to the invention is also capable of heating other components of the switch.
  • the heating or defrosting of a pull rod 9 by means of a tubular heating element is provided in FIG.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Central Heating Systems (AREA)

Abstract

A heating device for de-icing railway switches by using a heating fluid for conducting and distributing heat is described. According to the invention, the heating device comprises a heat source which is remote from the switches, heating elements which are arranged in the region of the switch parts, and piping which interconnects the heat source and the heating elements in such a manner that the latter form a closed circuit. <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Heizanlage zur Enteisung von Zugweichen unter Verwendung einer Warm­flüssigkeit zur Wärmeleitung und -verteilung.The present invention relates to a heating system for de-icing train switches using a warm liquid for heat conduction and distribution.

Bei bekannten Heizsystemen zur Enteisung von Zugweichen werden entweder elektrische Widerstände oder Gasbrenner verwendet, die jedenfalls die Wärme mehr oder weniger di­rekt den zu enteisenden Weichenteilen zuführen. Diese Heizsysteme sehen keine Wärmespeicherung vor und verursa­chen eine ungleichmäßige Wärmeverteilung, und zwar über­hitzte Stellen und solche mit ungenügender Temperatur. In den bekannten Heizsystemen muß überdies die Höhe der Heiz­temperatur verhältnismäßig groß sein, was im allgemeinen zu einer Energieverschwendung führt.In known heating systems for de-icing train switches, either electrical resistors or gas burners are used, which in any case supply the heat more or less directly to the switch parts to be de-iced. These heating systems do not provide heat storage and cause an uneven heat distribution, namely overheated places and those with insufficient temperature. In the known heating systems, moreover, the level of the heating temperature must be relatively high, which generally leads to a waste of energy.

Es liegt nahe, daß bei den bekannten Heizsystemen auch Temperaturfühler und Stellglieder verwendet werden könn­ten. Es wäre jedoch sehr schwierig für die vorgesehene Anwendung Reguliersysteme auszuführen, die genügend zu­verläßlich wären.It is obvious that temperature sensors and actuators could also be used in the known heating systems. However, it would be very difficult for the intended application to implement regulating systems that would be sufficiently reliable.

Die Aufgabe der vorliegenden Erfindung liegt in der Besei­tigung der oben angegebenen Mängel, wobei eine Heizanlage vorgeschlagen werden soll, die mit einem Mindestmaß an Energieaufwand arbeitet, die Wärme gleichmäßig auf die zu enteisenden Weichenteile verteilt und eine nahezu konstan­te Wärmezufuhr gewährleistet.The object of the present invention is to eliminate the above-mentioned deficiencies, whereby a heating system is to be proposed which operates with a minimum amount of energy, distributes the heat evenly over the parts of the switch to be de-iced and ensures an almost constant supply of heat.

Diese Aufgabe wird erfindungsgemäß durch eine Heizanlage zur Enteisung von Zugweichen gelöst, gekennzeichnet durch eine von den Weichen entfernte Wärmequelle, Heizkörper, die im Bereich der Weichenteile angeordnet sind, und Rohr­leitungen, die die Wärmequelle und die Heizkörper derart miteinander verbinden, daß dieselben einen geschlossenen Kreislauf bilden.This object is achieved by a heating system for de-icing train switches, characterized by a heat source removed from the switches, radiators which are arranged in the area of the switch parts, and pipes which connect the heat source and the radiators in such a way that they form a closed circuit.

Die Erfindung sieht vor, daß die Wärme über eine außerhalb des Wirkungsbereiches der Enteisung erwärmte Flüssigkeit transportiert und verteilt wird. Eine Flüssigkeit ist fä­hig,eine erhebliche Energiemenge bei einer niedrigen Temperaturhöhe aufzunehmen, wobei sichergestellt wird, daß die Wärmezufuhr verhältnismäßig konstant für alle zu enteisenden Teile erfolgt. Bis zu einem gewissen Punkt regelt sich die Heizanlage von selbst, dank der minimalen Temperaturdifferenz, die für die Wärmeleitung erforderlich ist. Ein nur wenige Grade gegenüber einem anderen Teil kälterer Teil wird daher selbsttätig eine erheblich größere Wärmemenge aufnehmen.The invention provides that the heat is transported and distributed via a liquid heated outside the effective range of the deicing. A liquid is capable of absorbing a significant amount of energy at a low temperature, ensuring that the heat input is relatively constant for all parts to be de-iced. Up to a point, the heating system regulates itself thanks to the minimal temperature difference required for heat conduction. A part that is only a few degrees colder than another part will therefore automatically absorb a considerably larger amount of heat.

Dank der niedrigen Höhe der Temperatur können wirtschaft­liche Energiequellen, wie Wärmepumpen, Abwässer u.s.w. verwendet werden.Thanks to the low temperature, economic energy sources such as heat pumps, waste water, etc. be used.

Weitere Merkmale, Einzelheiten und Vorteile der vorliegen­den Erfindung gehen aus der folgenden Beschreibung ihrer Ausführungsformen unter Bezugnahme auf die beigelegten Zeichnungen hervor. In den Zeichnungen zeigen:

  • Figur l eine Draufsicht einer erfindungsgemäßen Heizanlage bei Anwendung an eine einfache Weiche mit elastischem Scharnier;
  • Figur 2 einen Schnitt, gemäß der Linie II-II aus Figur l, durch eine Schiene bzw. einen Träger mit einem auf beiden angebrachten Heizkörper gemäß der Erfindung;
  • Figur 3 einen Schnitt gemäß der Linie III-III aus Figur 2;
  • Figur 4 einen Schnitt durch eine Variante des Trägers.
Further features, details and advantages of the present invention will become apparent from the following description of its embodiments with reference to the accompanying drawings. The drawings show:
  • Figure l is a plan view of a heating system according to the invention when used on a simple switch with elastic Hinge;
  • Figure 2 shows a section, along the line II-II of Figure 1, through a rail or a support with a radiator attached to both according to the invention;
  • Figure 3 shows a section along the line III-III of Figure 2;
  • Figure 4 shows a section through a variant of the carrier.

Wie in den Zeichnungen dargestellt, besteht die erfin­dungsgemäße Heizanlage aus einer die wärmeleitende Flüßig­keit erhitzende Wärmegruppe l, aus einem durch Rohre 2 zur Leitung und Verteilung der Heizflüssigkeit gebildeten Kreislauf und aus Heizkörpern 3,4,5, die die Wärme den zu enteisenden Weichenteilen übertragen. Die Flußrichtung der Flüssigkeit ist durch Pfeile angegeben. Die zu erwärmenden Teile sind vorzugsweise die festen Gleise 6 und die beweg­lichen aus Stahlguß bestehenden Träger 7 für die bewegli­chen Abschnitte der Gleise 8. Überdies können auch die Zugstangen 9 der Weiche erhitzt werden.As shown in the drawings, the heating system according to the invention consists of a heat group l that heats the heat-conducting liquid, of a circuit formed by pipes 2 for conducting and distributing the heating liquid, and of radiators 3, 4, 5 that transfer the heat to the parts of the switch to be de-iced. The direction of flow of the liquid is indicated by arrows. The parts to be heated are preferably the fixed rails 6 and the movable cast steel supports 7 for the movable sections of the rails 8. Furthermore, the tie rods 9 of the switch can also be heated.

Die zu erwärmenden Stellen können in Serie oder parallel geschaltet sein. In Figur l ist eine gemischte Schaltung dargestellt.The points to be heated can be connected in series or in parallel. A mixed circuit is shown in FIG.

Die Wärmegruppe l kann durch verschiedenartige Energie­quellen gespeist werden, z. B. kann sie mittels elektri­schen Widerständen, Gasbrennern oder Flüssigbrennstoff­brennern usw. betrieben werden. Die Wärmegruppe besitzt einen für sich bekannten Aufbau und ist mit allen jenen Bestandteilen versehen, die für den Betrieb eines Heiz­kreislaufes erforderlich sind, wie z.B. Umlaufpumpen, Erhitzern, Thermostaten, usw.. Es liegt nahe, daß die Warmflüssigkeit auch von einer Wärmegruppe geliefert wer­den könnte, die mehrere Weichen speist. Die Wärmeüber­tragung vom Kreislauf auf den zu erwärmenden Teil der Weiche erfolgt vorwiegend über die metallische Berührung zwischen den Teilen. Für die festen Schienen 6 besitzt der entsprechende Heizkörper 3 die Form eines vorzugsweise flachen Rohres, das an der Schiene mittels eines Bügels l0 oder durch Verlöten o. ä. befestigt ist.The heat group l can be fed by various types of energy sources, e.g. B. it can be operated by means of electrical resistors, gas burners or liquid fuel burners, etc. The heat group has a structure which is known per se and is provided with all those components which are necessary for the operation of a heating circuit, such as, for example, circulation pumps, Heaters, thermostats, etc. It is obvious that the hot liquid could also be supplied by a heat group that feeds several switches. The heat transfer from the circuit to the part of the switch to be heated mainly takes place via the metallic contact between the parts. For the fixed rails 6, the corresponding heating element 3 has the shape of a preferably flat tube which is fastened to the rail by means of a bracket 10 or by soldering or the like.

Wie aus Figur 2 ersichtlich, sind die Heizkörper 3 zur Be­grenzung von Energieverlusten mit einer isolierenden Ab­schirmung ll auf der Außenfläche versehen. Der Heizkörper 3 enthält gleichzeitig das Vorlauf- und das Rücklaufrohr. Auf diese Weise können die Heizkörper für die Träger 7 über mit l2 schematisch angedeuteten Ansschlußstücke pa­rallel geschalten werden.As can be seen from FIG. 2, the radiators 3 are provided with an insulating shield 11 on the outer surface in order to limit energy losses. The radiator 3 contains the flow pipe and the return pipe at the same time. In this way, the radiators for the supports 7 can be connected in parallel via connection pieces schematically indicated by l2.

Wie in Figur 3 dargestellt, besitzen die Heizköper 4 eine der standardisierten Basis des Trägers entsprechende, kammartige Form. Der Kreislauf wird hergestellt, indem der Heizkörper auf jeder Seite in die Lücke zwischen der obe­ren und der unteren Platte der Trägerbasis 7 mit einem Verbindungsstück l3 eingefügt wird.As shown in Figure 3, the radiators 4 have a comb-like shape corresponding to the standardized base of the carrier. The circuit is made by inserting the radiator on each side into the gap between the upper and lower plates of the support base 7 with a connector l3.

In Figur 4 ist eine Variante zur Erwärmung des Trägers 7 dargestellt. In diesem Fall wird der Flüssigkeitskreislauf hergestellt, indem die Lücke zwischen der oberen und unte­ren Platte des Trägers 7 unter Einbringung und Verschwei­ßung von Blechen l4 und Ausarbeitung von Durchbrüchen l5 in den Rippen dicht geschlossen wird. Bei dieser Lösung kommt die Warmflüssigkeit direkt mit dem Körper des Trä­gers in Berührung, wodurch eine sehr wirksamer thermischer Austausch sichergestellt wird.FIG. 4 shows a variant for heating the carrier 7. In this case, the liquid circuit is established by the gap between the upper and lower plate of the carrier 7 with the introduction and welding of sheets 14 and the formation of openings 15 is tightly closed in the ribs. With this solution, the warm liquid comes into direct contact with the body of the wearer, which ensures a very effective thermal exchange.

Es ist klar, daß die oben beschriebene, dichte Abschlie­ßung beim Gießen des Trägers unter Einbringung eines Kerns verwirklicht werden kann. Außer der festen Schiene 6 und den Trägern 7 ist die erfindungsgemäße Heizanlage auch fä­hig, andere Bestandteile der Weiche zu erwärmen. So ist beispielsweise in Figur l die Erwärmung bzw. Enteisung ei­ner Zugstange 9 mittels eines rohrförmigen Heizkörpers vorgesehen.It is clear that the tight seal described above can be achieved when the carrier is cast by inserting a core. In addition to the fixed rail 6 and the supports 7, the heating system according to the invention is also capable of heating other components of the switch. For example, the heating or defrosting of a pull rod 9 by means of a tubular heating element is provided in FIG.

Claims (5)

l) Heizanlage zur Enteisung von Zugweichen, gekennzeich­net durch eine von den Weichen entfernte Wärmequelle (l), Heizkörper (3, 4, 5), die im Bereich der zu erwärmenden Weichenteile (6, 7, 9) angeordnet sind, und Rohrleitungen (2), die die Wärmequelle (l) und die Heizkörper (3, 4, 5) derart miteinamder verbinden, daß dieselben einen ge­schlossenen Kreislauf bilden.l) heating system for de-icing train switches, characterized by a heat source (l) removed from the switches, radiators (3, 4, 5) which are arranged in the area of the switch parts to be heated (6, 7, 9), and pipes (2 ), which connect the heat source (l) and the radiators (3, 4, 5) to each other in such a way that they form a closed circuit. 2) Heizanlage nach Anspruch l, dadurch gekennzeichnet, daß die festen Schienen durch einen rohrförmigen Heizkörper erwärmt werden, der sowohl den Vorlauf als auch den Rücklauf des Heizkreislaufes enthält.2) Heating system according to claim l, characterized in that the fixed rails are heated by a tubular heater which contains both the flow and the return of the heating circuit. 3) Heizanlage nach Anspruch l, dadurch gekennzeichnet, daß die Träger (7) für die beweglichen Abschnitte der Schienen (8) durch zwei kammförmig ausgebildete Heizkörper (4) erwärmt werden, die in der Lücke zwischen der oberen und der unteren Platte der Basis des Trägers eingebracht und miteinander in Serie verbunden sind.3) Heating system according to claim l, characterized in that the supports (7) for the movable sections of the rails (8) are heated by two comb-shaped radiators (4) which are in the gap between the upper and lower plates of the base of the Carrier introduced and connected together in series. 4) Heizanlage nach Anspruch l, dadurch gekennzeichnet, daß die Erwärmung der Träger (7) durch den Flüssigkeitsum­lauf direkt in der Trägerbasis erfolgt, d. h. ohne gesonderte Heizkörper, wobei die Seitenwände (l4) dicht abgeschlossen sind und in den Rippen Durchbrüche (l5) eingearbeitet sind.4) Heating system according to claim l, characterized in that the heating of the carrier (7) by the liquid circulation takes place directly in the carrier base, d. H. Without separate radiators, the side walls (l4) are sealed and openings (l5) are incorporated in the ribs. 5) Heizanlage nach Anspruch l, dadurch gekennzeichnet,daß die Heizkörper (3, 4, 5) an der der zu erwärmenden Fläche abgewandten Fläche eine isolierende Abschirmung (ll) besitzen.5) Heating system according to claim l, characterized in that the radiators (3, 4, 5) have an insulating shield (ll) on the surface facing away from the surface to be heated.
EP87200966A 1986-05-27 1987-05-21 Heating device for deicing railway switches Withdrawn EP0247693A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT482386 1986-05-27
IT8604823A IT8604823A0 (en) 1986-05-27 1986-05-27 HEATING SYSTEM FOR THE THAWING OF RAILWAY POINTS BY CONDUCTING HEAT THROUGH HOT LIQUID.

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EP0247693A2 true EP0247693A2 (en) 1987-12-02
EP0247693A3 EP0247693A3 (en) 1988-06-08

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EP87200966A Withdrawn EP0247693A3 (en) 1986-05-27 1987-05-21 Heating device for deicing railway switches

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IT (1) IT8604823A0 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1262597A2 (en) * 2001-06-01 2002-12-04 Holland Railconsult B.V. Method and system for heating of rail and railelement for use therewith
GB2417508A (en) * 2004-08-24 2006-03-01 Schwihag Gmbh Fastening device for fixing a stock rail in a set of railway points
WO2009109664A1 (en) 2008-03-07 2009-09-11 Tripe S Gmbh Switch heating system
EP2182114A3 (en) * 2008-10-29 2010-08-04 Heatpoint B.V. Heating for railway switches
RU2470108C2 (en) * 2008-04-25 2012-12-20 Общество с ограниченной ответственностью Научно-производственная фирма "Электроавтоматик" Device for heating of point switch
WO2013037635A1 (en) 2011-09-13 2013-03-21 Triple S-Gmbh Switch heating system
DE102011119739A1 (en) 2011-11-30 2013-06-06 Iftec Gmbh & Co.Kg Rail switch i.e. streetcar rail switch, has heaters comprising connection unit for connecting heating elements, where connection unit is arranged in gussets between stock rail and tongue root and/or tongue connection piece
DE202012103258U1 (en) 2012-08-28 2013-12-02 Triple S-Gmbh Heat exchanger arrangement for a heating system for heating a rail switch
DE202012103257U1 (en) * 2012-08-28 2013-12-02 Triple S-Gmbh Heating device for heating a rail foot
WO2014032864A1 (en) * 2012-08-28 2014-03-06 Triple S-Gmbh Slide chair for a rail switch
WO2014041041A1 (en) * 2012-09-13 2014-03-20 Pintsch Aben geotherm GmbH Heat exchanger for switches and switch heating system
WO2014041042A1 (en) * 2012-09-13 2014-03-20 Pintsch Aben geotherm GmbH Heat exchanger for rails and switches and switch heating system
DE102012111357A1 (en) * 2012-11-23 2014-05-28 Schwihag Ag Slide chair for a rail switch
DE102013009269A1 (en) 2013-06-04 2014-12-04 Iftec Gmbh & Co.Kg Heatable switch and method for heating a switch
DE102013016232A1 (en) * 2013-10-01 2015-04-02 Ean Elektroschaltanlagen Gmbh Temperature control unit for track elements and system for controlling the temperature of track elements

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US2704517A (en) * 1951-08-08 1955-03-22 Gracia Manuel De Railroad track with rail de-icing means
DE1905601A1 (en) * 1969-02-05 1970-08-13 Viktor Thiel Thermo-oil hot air heating for track switches
DE2042486B1 (en) * 1970-08-27 1971-12-16 Schreck Mieves Gmbh TONGUE DEVICE F] R GROOVED RAIL SWITCHES
FR2244053A1 (en) * 1973-09-14 1975-04-11 Stecma Method of heating railway points - uses electrically heated oil in pipes along the sides of the rails
US4429845A (en) * 1982-04-26 1984-02-07 Emerson Electric Co. Rail track heaters

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Publication number Priority date Publication date Assignee Title
US2704517A (en) * 1951-08-08 1955-03-22 Gracia Manuel De Railroad track with rail de-icing means
DE1905601A1 (en) * 1969-02-05 1970-08-13 Viktor Thiel Thermo-oil hot air heating for track switches
DE2042486B1 (en) * 1970-08-27 1971-12-16 Schreck Mieves Gmbh TONGUE DEVICE F] R GROOVED RAIL SWITCHES
FR2244053A1 (en) * 1973-09-14 1975-04-11 Stecma Method of heating railway points - uses electrically heated oil in pipes along the sides of the rails
US4429845A (en) * 1982-04-26 1984-02-07 Emerson Electric Co. Rail track heaters

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Title
ZEITSCHRIFT F]R EISENBAHNWESEN UND VERKEHRSTECHNIK; GLASERS ANNALEN, Band 96, Nr. 1, Januar 1972, Seiten 18-23; U. FROB\SS: "Die Weichenheizsysteme bei der Deutschen Bundesbahn und ihre w{rmetechnischen Eigenschaften" *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1018204C2 (en) * 2001-06-01 2002-12-11 Holland Railconsult B V Method and system for heating and / or cooling rails and rail element to be used thereby.
EP1262597A3 (en) * 2001-06-01 2003-05-07 Holland Railconsult B.V. Method and system for heating of rail and railelement for use therewith
EP1262597A2 (en) * 2001-06-01 2002-12-04 Holland Railconsult B.V. Method and system for heating of rail and railelement for use therewith
GB2417508A (en) * 2004-08-24 2006-03-01 Schwihag Gmbh Fastening device for fixing a stock rail in a set of railway points
GB2417508B (en) * 2004-08-24 2006-07-12 Schwihag Gmbh Fastening device for fixing a stock rail in a set of railway points
WO2009109664A1 (en) 2008-03-07 2009-09-11 Tripe S Gmbh Switch heating system
RU2470108C2 (en) * 2008-04-25 2012-12-20 Общество с ограниченной ответственностью Научно-производственная фирма "Электроавтоматик" Device for heating of point switch
EP2182114A3 (en) * 2008-10-29 2010-08-04 Heatpoint B.V. Heating for railway switches
EA029004B1 (en) * 2011-09-13 2018-01-31 Трипл С-Гмбх Switch heating system
WO2013037635A1 (en) 2011-09-13 2013-03-21 Triple S-Gmbh Switch heating system
DE102011119739A1 (en) 2011-11-30 2013-06-06 Iftec Gmbh & Co.Kg Rail switch i.e. streetcar rail switch, has heaters comprising connection unit for connecting heating elements, where connection unit is arranged in gussets between stock rail and tongue root and/or tongue connection piece
DE202012103258U1 (en) 2012-08-28 2013-12-02 Triple S-Gmbh Heat exchanger arrangement for a heating system for heating a rail switch
WO2014032864A1 (en) * 2012-08-28 2014-03-06 Triple S-Gmbh Slide chair for a rail switch
WO2014032867A2 (en) 2012-08-28 2014-03-06 Triple S-Gmbh Heat exchanger arrangement for a heating system for heating a rail switch
WO2014032865A3 (en) * 2012-08-28 2014-05-01 Triple S-Gmbh Heating device for heating a rail foot
DE202012103257U1 (en) * 2012-08-28 2013-12-02 Triple S-Gmbh Heating device for heating a rail foot
WO2014041041A1 (en) * 2012-09-13 2014-03-20 Pintsch Aben geotherm GmbH Heat exchanger for switches and switch heating system
WO2014041042A1 (en) * 2012-09-13 2014-03-20 Pintsch Aben geotherm GmbH Heat exchanger for rails and switches and switch heating system
DE102012111357A1 (en) * 2012-11-23 2014-05-28 Schwihag Ag Slide chair for a rail switch
DE102013009269A1 (en) 2013-06-04 2014-12-04 Iftec Gmbh & Co.Kg Heatable switch and method for heating a switch
DE202013012644U1 (en) 2013-06-04 2018-05-15 Iftec Gmbh & Co.Kg Heatable switch
DE102013016232A1 (en) * 2013-10-01 2015-04-02 Ean Elektroschaltanlagen Gmbh Temperature control unit for track elements and system for controlling the temperature of track elements

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EP0247693A3 (en) 1988-06-08
IT8604823A0 (en) 1986-05-27

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