EP2142408A1 - Cooling air feeding arrangement for a railway vehicle - Google Patents

Cooling air feeding arrangement for a railway vehicle

Info

Publication number
EP2142408A1
EP2142408A1 EP08736061A EP08736061A EP2142408A1 EP 2142408 A1 EP2142408 A1 EP 2142408A1 EP 08736061 A EP08736061 A EP 08736061A EP 08736061 A EP08736061 A EP 08736061A EP 2142408 A1 EP2142408 A1 EP 2142408A1
Authority
EP
European Patent Office
Prior art keywords
cooling air
heat
thermal bridge
cooler
air supply
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.)
Granted
Application number
EP08736061A
Other languages
German (de)
French (fr)
Other versions
EP2142408B1 (en
Inventor
Burkhard Halfmann
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
Siemens Corp
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
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP2142408A1 publication Critical patent/EP2142408A1/en
Application granted granted Critical
Publication of EP2142408B1 publication Critical patent/EP2142408B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C5/00—Locomotives or motor railcars with IC engines or gas turbines
    • B61C5/02—Arrangement or disposition of intakes and apparatus for supplying, circulating, and filtering air for combustion and engine-cooling purposes

Definitions

  • the invention relates to a cooling air supply arrangement for a rail vehicle according to the preamble of claim 1.
  • separation grid If the separation grid is electrically heated, accumulated snow can be thawed intermetierend during vehicle standstill. However, continuous operation of electric grid heating is associated with low to medium to high air mass flows
  • the invention has the object, the aforementioned cooling air supply arrangement in With regard to their operation in winter conditions to develop such that with little effort a reduced icing of Abscheidegitters can be achieved.
  • At least one thermal bridge is provided between a heat-emitting surface of the radiator and the Abscheidegitter.
  • a plurality of thermal bridges can be provided, which are distributed substantially uniformly between the Abscheidegitter and the heat-emitting surface of the radiator.
  • the affected radiator may be associated with any electrical or other component of the rail vehicle to be cooled.
  • Examples of such components are: traction converters, auxiliary converters, traction motors (electric, fluid cooled), transformers, battery chargers, internal combustion engines, generators and gearboxes / retarders.
  • the at least one thermal bridge is designed as a plate, which then extends from the heat-emitting surface of the cooler to a region of the Abscheidegitters.
  • various variants are conceivable, for example, a centrifugal sediment separator with round cross-section.
  • the thermal bridge plate may then be provided with bores for receiving a respective element of a centrifugal sediment separator, wherein the elements may be thermally conductively connected to the at least one thermal bridge.
  • the elements of the Abscheidegitters eg centrifugal sediment
  • the elements of the Abscheidegitters are arranged in the flow direction of the cooling air immediately in front of the radiator.
  • the elements of the Abscheidegitters are preferably arranged vertically, the heat bridge plate is horizontal in this case. This has the advantage that sediment can be removed by the action of gravity down from the cooling arrangement out.
  • Figure 1 is a schematic side view of a cooling air supply arrangement for a rail vehicle
  • FIG. 2 shows a schematic view from above of the cooling air supply arrangement of FIG. 1.
  • the separation grid 1 In view of its external position, the separation grid 1 is exposed to external environmental influences in winter conditions. This means that the separation grid 1 can be added with snow or iced.
  • the cooler 2 comprises a cooling medium line 4, in which heated cooling medium is located. Amount of heat released from the cooling medium is transferred to an outer surface of the cooler 2, which typically has a rib structure which can be better recognized in FIG. The heat-emitting
  • Outer surface of the radiator 2 and possibly the cooling medium line 4 are connected via thermal bridge plates 5 with the Abscheidegitter 1, wherein the thermal bridge plates 5 substantially evenly vertically above each other between the Abscheidgitter 1 and the radiator 2 are arranged.
  • About the thermal bridge plates 5 is originally derived from the cooling medium heat, which is transmitted via the outer surface of the radiator 2 on the thermal bridge plates 5, registered in the Abscheidegitter 1, so that here an increase in temperature can be completed.
  • each of the thermal bridge plates 5 is provided with a number of holes 6, each for receiving an element of a
  • the elements 7 of the centrifugal sediment separator are inserted into the bores 6 and connected in a heat-conducting manner to the thermal bridge plate 5.
  • the thermally conductive connection can be realized in various ways and combinations thereof, e.g. Clamping the centrifugal force sediment separator elements 7 in the crimped bore 6 of the thermal bridge plate 5 or cohesive connection (soldering, welding) in the thermal bridge plate. 5
  • deposition grid elements 7 e.g.
  • Centrifugal sediment separator elements are arranged vertically precipitated sediment, such as snow, due to the effect of gravitational acceleration down out of the separator 7 out. If the separation grids 1 are frosted, the heat is dissipated via the heat bridge plates 5 from the cooler 2 to the separating grate 1 added with ice or snow. In this way, on the one hand the heat dissipation from the radiator 2 is secured and on the other hand the separation grate 1 (partially) de-iced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a cooling air feeding arrangement for a railway vehicle having at least one cooler (2) for tempering a component (M) of the railway vehicle generating heat, such as an electric or diesel-driven drive unit, having a separating mesh (1) for letting in fresh air and a ventilator (3) for drawing in the fresh air through the separating mesh (1) in the direction toward the cooler (2), wherein at least one thermal bridge (5) is provided between a surface of the cooler (2) emitting heat and the separating mesh (1).

Description

Beschreibungdescription

Kühlluft-Zuführungsanordnung für ein SchienenfahrzeugCooling air supply arrangement for a rail vehicle

Die Erfindung bezieht sich auf eine Kühlluft- Zuführungsanordnung für ein Schienenfahrzeug nach dem Oberbegriff des Anspruchs 1.The invention relates to a cooling air supply arrangement for a rail vehicle according to the preamble of claim 1.

Bei Schienenfahrzeugen, insbesondere bei der Zuführung von Frischluft für den Kühler, ergeben sich bei winterlichen Verhältnissen besondere Schwierigkeiten. Bei Schneefall bzw. bei Einsaugung von durch Fahrtwind aufgewirbeltem Schnee können Abscheidegitter vor Kühlern vereisen, so dass eine Frischluftzuführung vermindert bzw. vollständig unterbunden werden kann.In rail vehicles, especially in the supply of fresh air for the radiator, resulting in winter conditions particular difficulties. When snowfall or when sucking up by wind whirled up snow can Abscheidegitter before coolers freeze, so that a fresh air supply can be reduced or completely prevented.

Zur Lösung dieses Problems ist vorgeschlagen worden, möglichst schneefreie Luft im Dachbereich eines Schienenfahrzeugs anzusaugen. Auch hat man versucht, eine zentrifugale Abscheidung des auf dem Abscheidegitter auftretenden Schnees vorzunehmen, was jedoch nur bei kleinen bis mittleren Luftmassenströmen zu befriedigenden Ergebnissen führt.To solve this problem has been proposed to suck as possible snow-free air in the roof area of a rail vehicle. Attempts have also been made to effect a centrifugal separation of the snow occurring on the separation grid, which, however, leads to satisfactory results only with small to medium air mass flows.

Wird das Abscheidgitter elektrisch beheizt, kann angesammelter Schnee intermetierend bei Fahrzeugstillstand abgetaut werden. Ein kontinuierlicher Betrieb der elektrischen Gitterbeheizung ist jedoch bei mittleren bis hohen Luftmassenströmen in Verbindung mit niedrigenIf the separation grid is electrically heated, accumulated snow can be thawed intermetierend during vehicle standstill. However, continuous operation of electric grid heating is associated with low to medium to high air mass flows

Außentemperaturen wie im Winter energetisch nicht sinnvoll, da in etwa die gleiche elektrische Heizleistung zum Abtauen des Gitters erforderlich sein kann, wie an Wärme durch den hinter dem Abscheidegitter angebrachten Kühler abgeführt werden muss.Outside temperatures such as in winter energetically not useful, since in about the same electric heating power to defrost the grid may be required as heat must be dissipated by the mounted behind the Abscheidegitter cooler.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, die eingangs genannte Kühlluft-Zuführungsanordnung im Hinblick auf ihren Betrieb bei winterlichen Verhältnissen derart weiter zu entwickeln, dass mit geringem Aufwand eine verminderte Vereisung des Abscheidegitters erreicht werden kann .Proceeding from this, the invention has the object, the aforementioned cooling air supply arrangement in With regard to their operation in winter conditions to develop such that with little effort a reduced icing of Abscheidegitters can be achieved.

Diese Aufgabe wird dadurch gelöst, dass zwischen einer wärmeabgebenden Fläche des Kühlers und dem Abscheidegitter wenigstens eine Wärmebrücke vorgesehen ist.This object is achieved in that at least one thermal bridge is provided between a heat-emitting surface of the radiator and the Abscheidegitter.

Auf diese Weise wird erreicht, dass am Kühler entstehende Abwärme gezielt zur Erhöhung der Temperatur des Abscheidegitters genutzt wird. Dadurch wird wirksam eine Vereisung des Abscheidegitters bzw. dessen Zusätzen mit Schnee vermindert.In this way it is achieved that waste heat arising at the radiator is purposefully used to increase the temperature of the separation grate. As a result, icing of the Abscheidegitters or its additives is reduced with snow effectively.

Bevorzugt kann eine Mehrzahl Wärmebrücken vorgesehen sein, die zwischen dem Abscheidegitter und der Wärme abgebenden Fläche des Kühlers im Wesentlichen gleichmäßig verteilt sind.Preferably, a plurality of thermal bridges can be provided, which are distributed substantially uniformly between the Abscheidegitter and the heat-emitting surface of the radiator.

Der betroffene Kühler kann irgendeiner elektrischen oder anderen zu kühlenden Komponente des Schienenfahrzeugs zugeordnet sein. Beispiele für solche Komponenten sind: Traktionsstromrichter, Hilfsbetriebeumrichter, Fahrmotoren (elektrisch, fluidgekühlt) , Transformatoren, Batterieladegeräte, Verbrennungsmotoren, Generatoren und Getriebe / Retarder.The affected radiator may be associated with any electrical or other component of the rail vehicle to be cooled. Examples of such components are: traction converters, auxiliary converters, traction motors (electric, fluid cooled), transformers, battery chargers, internal combustion engines, generators and gearboxes / retarders.

Vorteilhafter Weise ist die wenigstens eine Wärmebrücke als Platte ausgeführt, die sich dann von der wärmabgebenden Fläche des Kühlers bis zu einem Bereich des Abscheidegitters erstreckt. Bei der Ausführung des Abscheidegitters sind verschiedenste Varianten denkbar, z.B. ein Fliehkraftsedimentabscheider mit Rundquerschnitt. Die Wärmebrückenplatte kann dann mit Bohrungen zur jeweiligen Aufnahme eines Elements eines Fliehkraftsedimentabscheiders versehen sein, wobei die Elemente wärmeleitend mit der wenigstens einen Wärmebrücke verbunden sein können. Dabei sind die Elemente des Abscheidegitters (z.B. Fliehkraftsedimentabscheider) in Strömungsrichtung der Kühlluft unmittelbar vor dem Kühler angeordnet.Advantageously, the at least one thermal bridge is designed as a plate, which then extends from the heat-emitting surface of the cooler to a region of the Abscheidegitters. In the execution of Abscheidegitters various variants are conceivable, for example, a centrifugal sediment separator with round cross-section. The thermal bridge plate may then be provided with bores for receiving a respective element of a centrifugal sediment separator, wherein the elements may be thermally conductively connected to the at least one thermal bridge. there the elements of the Abscheidegitters (eg centrifugal sediment) are arranged in the flow direction of the cooling air immediately in front of the radiator.

Zur geeigneten Abführung von Sediment sind die Elemente des Abscheidegitters vorzugsweise senkrecht angeordnet, die Wärmebrückenplatte verläuft in diesem Fall horizontal. Dies hat den Vorteil, dass Sediment durch Einwirkung der Schwerkraft nach unten aus der Kühlanordnung heraus abgeführt werden kann.For suitable removal of sediment, the elements of the Abscheidegitters are preferably arranged vertically, the heat bridge plate is horizontal in this case. This has the advantage that sediment can be removed by the action of gravity down from the cooling arrangement out.

Ausführungsbeispiele der Erfindung werden nachfolgend unter Bezugnahme auf die Zeichnung noch näher erläutert.Embodiments of the invention will be explained in more detail with reference to the drawings.

Es zeigen:Show it:

Figur 1 eine schematische Seitenansicht einer Kühlluft- Zuführungsanordnung für ein Schienenfahrzeug undFigure 1 is a schematic side view of a cooling air supply arrangement for a rail vehicle and

Figur 2 eine schematische Ansicht von oben der Kühlluft- Zuführungsanordnung von Figur 1.FIG. 2 shows a schematic view from above of the cooling air supply arrangement of FIG. 1.

Angesichts seiner äußeren Lage ist das Abscheidegitter 1 bei winterlichen Bedingungen äußeren Umwelteinflüssen ausgesetzt. Dies bedeutet, dass das Abscheidegitter 1 mit Schnee zugesetzt werden kann oder vereist.In view of its external position, the separation grid 1 is exposed to external environmental influences in winter conditions. This means that the separation grid 1 can be added with snow or iced.

Um dies zu verhindern, wird eine Abwärme des Kühlers 2 ausgenutzt. Der Kühler 2 umfasst eine Kühlmediumleitung 4, in der sich erwärmtes Kühlmedium befindet. Von dem Kühlmedium abgegebene Wärmemenge wird an eine Außenfläche des Kühlers 2 übertragen, die typischerweise eine in Figur 2 besser erkennbare Rippenstruktur aufweist. Die wärmeabgebendeTo prevent this, a waste heat of the radiator 2 is utilized. The cooler 2 comprises a cooling medium line 4, in which heated cooling medium is located. Amount of heat released from the cooling medium is transferred to an outer surface of the cooler 2, which typically has a rib structure which can be better recognized in FIG. The heat-emitting

Außenfläche des Kühlers 2 und ggf. die Kühlmediumleitung 4 sind über Wärmebrückenplatten 5 mit dem Abscheidegitter 1 verbunden, wobei die Wärmebrückenplatten 5 im Wesentlichen gleichmäßig vertikal übereinander zwischen dem Abscheidgitter 1 und dem Kühler 2 angeordnet sind. Über die Wärmebrückenplatten 5 wird ursprünglich von dem Kühlmedium stammende Wärme, die über die Außenfläche des Kühlers 2 auf die Wärmebrückenplatten 5 übertragen wird, in das Abscheidegitter 1 eingetragen, so dass hier eine Temperaturerhöhung vollzogen werden kann.Outer surface of the radiator 2 and possibly the cooling medium line 4 are connected via thermal bridge plates 5 with the Abscheidegitter 1, wherein the thermal bridge plates 5 substantially evenly vertically above each other between the Abscheidgitter 1 and the radiator 2 are arranged. About the thermal bridge plates 5 is originally derived from the cooling medium heat, which is transmitted via the outer surface of the radiator 2 on the thermal bridge plates 5, registered in the Abscheidegitter 1, so that here an increase in temperature can be completed.

Aus Figur 2 geht hervor, dass jede der Wärmebrückenplatten 5 mit einer Anzahl Bohrungen 6 ausgestattet ist, die jeweils zur Aufnahme eines Elements einesFrom Figure 2 shows that each of the thermal bridge plates 5 is provided with a number of holes 6, each for receiving an element of a

Fliehkraftsedimentabscheiders dienen. Die Elemente 7 des Fliehkraftsedimentabscheiders sind in die Bohrungen 6 gesteckt und wärmeleitend mit der Wärmebrückenplatte 5 verbunden. Die wärmeleitende Verbindung kann auf verschiedene Weise und Kombinationen daraus realisiert werden, z.B. Klemmung der Fliehkraftsedimentabscheiderelemente 7 in der aufgebördelten Bohrung 6 der Wärmebrückenplatte 5 oder Stoffschlüssige Verbindung (Löten, Schweißen) in der Wärmebrückenplatte 5.Serve centrifugal sediment separator. The elements 7 of the centrifugal sediment separator are inserted into the bores 6 and connected in a heat-conducting manner to the thermal bridge plate 5. The thermally conductive connection can be realized in various ways and combinations thereof, e.g. Clamping the centrifugal force sediment separator elements 7 in the crimped bore 6 of the thermal bridge plate 5 or cohesive connection (soldering, welding) in the thermal bridge plate. 5

Da die Abscheidegitterelemente 7 (z.B.Since the deposition grid elements 7 (e.g.

Fliehkraftsedimentabscheider-Elemente) vertikal angeordnet sind, fällt abgeschiedenes Sediment, beispielsweise Schnee, aufgrund der Einwirkung der Erdbeschleunigung nach unten aus dem Abscheideelement 7 heraus. Sind die Abscheidegitter 1 vereist, wird die Wärme über die Wärmebrückenplatten 5 vom Kühler 2 an das mit Eis bzw. Schnee zugesetzte Abscheidegitter 1 abgeführt. Auf diese Weise wird einerseits die Wärmeabfuhr aus dem Kühler 2 gesichert und andererseits das Abscheidegitter 1 (teilweise) enteist. Centrifugal sediment separator elements) are arranged vertically precipitated sediment, such as snow, due to the effect of gravitational acceleration down out of the separator 7 out. If the separation grids 1 are frosted, the heat is dissipated via the heat bridge plates 5 from the cooler 2 to the separating grate 1 added with ice or snow. In this way, on the one hand the heat dissipation from the radiator 2 is secured and on the other hand the separation grate 1 (partially) de-iced.

Claims

Patentansprüche claims 1. Kühlluft-Zuführungsanordnung für ein Schienenfahrzeug mit wenigstens einem Kühler (2) zum Temperieren einer Wärme entwickelnden Komponente (M) des Schienenfahrzeugs, wie einem elektrischen oder dieselgetriebenem Antriebsaggregat, mit einem Abscheidegitter (1) zum Einlass von Frischluft und einem Lüfter (3) zum Einsaugen der Frischluft durch das Abscheidegitter (1) hindurch in Richtung auf den Kühler (2), dadurch gekennzeichnet, dass zwischen einer Wärme abgebenden Fläche des Kühlers (2) und dem Abscheidegitter (1) wenigstens eine Wärmebrücke (5) vorgesehen ist.1. A cooling air supply arrangement for a rail vehicle with at least one cooler (2) for tempering a heat-generating component (M) of the rail vehicle, such as an electric or diesel-powered drive unit, with a separation grid (1) for the inlet of fresh air and a fan (3). for sucking in the fresh air through the separation grid (1) in the direction of the cooler (2), characterized in that between a heat emitting surface of the cooler (2) and the separation grid (1) at least one thermal bridge (5) is provided. 2. Kühlluft-Zuführungsanordnung nach Anspruch 1, dadurch gekennzeichnet, dass eine Mehrzahl Wärmebrücken (5) vorgesehen ist, die zwischen dem Abscheidegitter (1) und der Wärme abgebenden Fläche des Kühlers (2) im Wesentlichen gleichmäßig verteilt sind.Second cooling air supply arrangement according to claim 1, characterized in that a plurality of thermal bridges (5) is provided, which are distributed substantially evenly between the Abscheidegitter (1) and the heat-emitting surface of the radiator (2). 3. Kühlluft-Zuführungsanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die wenigstens eine Wärmebrücke (5) als Platte ausgeführt ist .3. cooling air supply arrangement according to claim 1 or 2, characterized in that the at least one thermal bridge (5) is designed as a plate. 4. Kühlluft-Zuführungsanordnung nach Anspruch 3, dadurch gekennzeichnet, dass die wenigstens eine Wärmebrücke (5) Bohrungen (6) zur jeweiligen Aufnahme eines Elements (7) eines Fliehkraftsedimentabseheiders aufweist, wobei die Elemente (7) wärmeleitend mit der wenigstens einen Wärmebrücke (5) verbunden sind. 4. Cooling-air supply arrangement according to claim 3, characterized in that the at least one thermal bridge (5) has bores (6) for respectively receiving an element (7) of a centrifugal sediment separator, the elements (7) being heat-conducting with the at least one thermal bridge (5 ) are connected. 5. Kühlluft-Zuführungsanordnung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die wenigstens eine Wärmebrücke (5) horizontal zwischen dem Abscheidegitter (1) und dem Kühler (2) verläuft. 5. cooling air supply arrangement according to one of claims 1 to 4, characterized in that the at least one thermal bridge (5) extends horizontally between the Abscheidegitter (1) and the radiator (2).
EP08736061A 2007-05-09 2008-04-10 Cooling air feeding arrangement for a railway vehicle Not-in-force EP2142408B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007021746A DE102007021746A1 (en) 2007-05-09 2007-05-09 Cooling air supply arrangement for a rail vehicle
PCT/EP2008/054340 WO2008138693A1 (en) 2007-05-09 2008-04-10 Cooling air feeding arrangement for a railway vehicle

Publications (2)

Publication Number Publication Date
EP2142408A1 true EP2142408A1 (en) 2010-01-13
EP2142408B1 EP2142408B1 (en) 2011-10-12

Family

ID=39595795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08736061A Not-in-force EP2142408B1 (en) 2007-05-09 2008-04-10 Cooling air feeding arrangement for a railway vehicle

Country Status (5)

Country Link
EP (1) EP2142408B1 (en)
AT (1) ATE528191T1 (en)
DE (1) DE102007021746A1 (en)
RU (1) RU2457967C2 (en)
WO (1) WO2008138693A1 (en)

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CN110290675A (en) * 2019-06-05 2019-09-27 安徽蓝德正华电子有限公司 A kind of power control cabinet cooling system and power control cabinet

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CN110290675A (en) * 2019-06-05 2019-09-27 安徽蓝德正华电子有限公司 A kind of power control cabinet cooling system and power control cabinet

Also Published As

Publication number Publication date
RU2457967C2 (en) 2012-08-10
EP2142408B1 (en) 2011-10-12
WO2008138693A1 (en) 2008-11-20
ATE528191T1 (en) 2011-10-15
DE102007021746A1 (en) 2008-11-20
RU2009145515A (en) 2011-06-27

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