EP2038154A2 - Rail vehicle comprising a cooling system for components that are arranged in an underfloor region - Google Patents
Rail vehicle comprising a cooling system for components that are arranged in an underfloor regionInfo
- Publication number
- EP2038154A2 EP2038154A2 EP07730274A EP07730274A EP2038154A2 EP 2038154 A2 EP2038154 A2 EP 2038154A2 EP 07730274 A EP07730274 A EP 07730274A EP 07730274 A EP07730274 A EP 07730274A EP 2038154 A2 EP2038154 A2 EP 2038154A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail vehicle
- inlet opening
- cooling
- cooling air
- air
- 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
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 78
- 238000000926 separation method Methods 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
Definitions
- the invention relates to a rail vehicle with a cooling arrangement for arranged in an underfloor area components, such as a power supply block, a power converter, a transformer or a traction motor, wherein the cooling arrangement has a first inlet for fresh air to be used as cooling air and at least one fan for guiding the cooling air towards at least one of the components.
- a rail vehicle with a cooling arrangement for arranged in an underfloor area components, such as a power supply block, a power converter, a transformer or a traction motor, wherein the cooling arrangement has a first inlet for fresh air to be used as cooling air and at least one fan for guiding the cooling air towards at least one of the components.
- known rail vehicles typically have in the lower sidewall area, d. H. In the vicinity of the components to be cooled inlet openings for fresh air, which is then supplied as cooling air by means of the fan to the respective components.
- These components may for example be equipped with cooling fins, so that their effective cooling is made possible by means of the cooling air. Examples are
- the arrangement chosen is favorable in terms of flow, since only short cooling air paths are to be laid in order to guide the fresh air flowing through the inlet opening to the location at which a cooling effect is to be achieved.
- the present invention seeks to provide a rail vehicle, in which there is an increased reliability in winter operation with regard to the cooling of arranged in the underfloor area components.
- Rail vehicle is arranged and connected via an air duct with the underfloor area.
- this inlet opening is significantly less exposed to snow in winter, so that a cooling air supply via the second inlet opening in winter can reliably go from stock.
- the second entry opening may be located in the roof area of the rail vehicle so that it is completely protected from whirled-up snow. Also, an arrangement of the second inlet opening in one
- the second inlet opening may be provided with an inlet grate and a downstream separator grate. This causes a protection of the second inlet opening during snowfall in front of the fan in the air channel snow.
- the Abscheidegitter be formed in two parts, wherein a respective sub-grid extends obliquely in the direction of an inlet of the air channel.
- the orientation of the sublattice can be both in the transverse direction to the longitudinal axis of the
- Triebwagens be chosen as well as in the longitudinal direction of the railcar. In both cases, a homogeneous distribution of the air velocity results.
- the separator grid is in turn divided into two and flows from below, so that the settling of snow and dirt is effectively reduced.
- the Abscheidegitter at a distance to a roof top of the
- Triebwagens is arranged and is undercut by wind, so that also the deposition of snow is reduced.
- the second inlet opening can communicate with the underfloor area of the building via one or more flow channels
- the first inlet opening may have a closable inlet grille. This provides the ability to close the first inlet opening for a winter operation partially or completely, so that a
- Cooling air supply for the components in the underfloor area comes up to 100% of the cooling air from the second inlet opening.
- the cooling arrangement can be controlled by means of a control module which determines the proportions of cooling air from the first inlet opening and the second inlet opening at the underfloor used cooling air.
- a control module which determines the proportions of cooling air from the first inlet opening and the second inlet opening at the underfloor used cooling air.
- the control module can be designed such that when operating in summer, the proportion of cooling air from the first inlet opening in the range between 30 and 100% and the proportion of cooling air from the second inlet opening in the range between 0 and 70%.
- the first inlet opening is typically closed, so that the cooling air is provided exclusively from the second inlet opening.
- the first inlet opening can typically be arranged in the region of the side skirts of the rail vehicle in order to create a flow-favorable route for the cooling air to the components to be cooled.
- control module may be designed such that different cooling air flow densities are selected between operation in summer and operation in winter. This can in particular be temperature-dependent, so that in a winter operation, the at least one fan can be operated at a lower speed, since the incoming fresh air has a relation to the summer significantly reduced temperature.
- individual unit fans or component fans can be provided with a bypass channel, the leading back to a suction side of the unit fan.
- the fan speed can remain constant, a pressure level in a floor pan of the rail vehicle in the underfloor area remains high, since a vacuuming of the floor pan is prevented, and an operating point of the
- Aggregate fan remains ideal. This results in a high efficiency of the unit fan, with less noise.
- Figure 1 is a side view, partially in section, one
- FIG. 2 is a cross-sectional view of a roof area of the roof
- FIG. 3 shows a cross-sectional view of a further embodiment of the roof area of the railcar of FIG. 1,
- FIG. 4 is a longitudinal sectional view of a roof area of the roof
- FIG. 5 shows a longitudinal sectional view of an underfloor region of the railcar of FIG. 1.
- FIG. 1 The representation of a railcar 1 in Figure 1 shows an underfloor area 2, in which various electrical components are housed, which are to be cooled during operation.
- Bogies 3 are equipped with associated traction motors 4, which are cooled by means of respective traction motor 5 fans.
- An underside of the multiple unit 1 is fluidly sealed by means of a bottom tray 6, so that 6 cooling air flows can be performed above the floor pan.
- Above the base tray 6 is also a further electrical unit 7, which may be a power supply block, a power converter or a transformer, more precisely, cooling units of the devices concerned.
- the bottom tray 6 sits down at their
- Second inlet grille 11 In the roof area of the railcar 1 there are second inlet grille 11. Fresh air flowing in via the second inlet grille 11 initially reaches respective associated separation grids 12, which, viewed in the longitudinal direction of the railcar 1, are inclined and inclined downwards in the direction of a vertically extending air duct 13 , A support fan 14 conveys cooling air from the roof area in the direction of the cooling system 10. It can be provided further air ducts, which are arranged one behind the other in the vehicle longitudinal direction and
- a cooling arrangement for the underfloor region of the railcar 1 is thus composed of two inlet openings with the first inlet grille 11 in the roof area and two inlet openings of the first inlet grille 9 in the side skirt area of the multiple unit 1, the air duct 13 and the cooling system 10, which may comprise a plurality of fans.
- the cooling system 10 which may comprise a plurality of fans.
- an air outlet 15 is provided in the otherwise sealed floor pan 6, which serves as an outlet for the cooling air flow of a cooling system.
- the cooling arrangement can be switched manually or automatically between a summer operation and a winter operation. Serves a not-shown here control module, which can be designed so that when operating in summer, the proportion of cooling air from the first
- the first inlet grates are closed manually or automatically, so that the cooling air is provided exclusively by the second inlet grids 11.
- This procedure has the advantage that in winter operation, the fresh air used as cooling air is substantially free of snow. Due to the arrangement of the second inlet grille 11 in the roof area, highly swirled snow can not hit the second inlet grille 11. During snowfall, the separation grids 12 act to filter snow present in the air before the fresh air is further conveyed through the air duct 13 by means of the support fan 14.
- FIG. 1 illustrates a first embodiment of the arrangement of the separation grids 12
- FIG. 2 shows an alternative arrangement of separation gratings 12A, which lie horizontally at a distance from the roof surface of the multiple unit 1.
- the separation grids 12A are only flowed in from below, so that the gravitational force can be prevented, that settles snow and dirt.
- FIG. 3 Another alternative to the arrangement of Abscheidegittern 12B is apparent from Figure 3.
- the Abscheidegitter 12 B are also arranged obliquely, wherein they fall from outside to inside in the direction of an inlet opening of the air duct 13. This causes a favorable distribution of the air velocity of the fresh air to be used as cooling air.
- Such a favorable distribution also results in the deposition grid arrangement according to FIG. 1.
- an array of Abscheidegittern 12C is chosen so that they are constantly undermined by fresh air, so that especially at high speed no snow can settle on the Abscheidegittern 12C, since no dead water is present. Separated snow thus has a very short residence time on the separation gratings 12C, since it is removed immediately due to the under-flushing at high speed.
- a gap between a roof top of the multiple unit 1 and the Abscheidegittern 12 C is aerodynamically shaped so that a
- Figure 5 shows a section of the underfloor region of the railcar 1 from the air duct 13 coming cooling air is in the direction of the traction motor 4 as an example of a
- the traction motor fan 5 is located on an inlet side of a cooling air duct 16, which transports cooling air to the traction motor 4. Immediately downstream of the traction motor fan 5, the cooling air channel 16 narrows, wherein in the region of this constriction
- bypass flap 17 is provided.
- the bypass door 17 When the bypass door 17 is closed, the entire cooling air flow from the driving motor cooler 5 is supplied from the traveling motor 4.
- the bypass door 17 When the bypass door 17 is opened, a proportion of the cooling air flow determined therewith is directed downward in the direction of
- the bypass control of the traction motor fan 5, which is here representative of fans that are assigned to specific units to be cooled, serves to reduce the volume flow in winter operation, which is supplied to the traction motor 4. If the fan speed of the traction motor fan 5 remains constant when the bypass door 17 is opened for winter operation, the pressure level in the bottom tray 6 rises and the operating point of the unit fan remains ideal, so that high efficiency and low noise are achieved.
- the bypass volume flow then corresponds to the Difference from the volume flow V 5 for summer operation and the volume flow V w for winter operation. It is made use of the fact that the fresh air supplied in the winter of lower temperature, so that a lower flow rate for cooling of aggregates, such as the drive motor 4, sufficient.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Beschreibungdescription
Schienenfahrzeug mit einer Kühlanordnung für in einem Unterflurbereich angeordnete KomponentenRail vehicle with a cooling arrangement for arranged in an underfloor area components
Die Erfindung bezieht sich auf ein Schienenfahrzeug mit einer Kühlanordnung für in einem Unterflurbereich angeordneten Komponenten, wie ein Energieversorgungsblock, ein Stromrichter, eine Transformator oder ein Fahrmotor, wobei die Kühlanordnung eine erste Eintrittsöffnung für als Kühlluft zu verwendende Frischluft und wenigstens einen Lüfter zum Führen der Kühlluft in Richtung auf mindestens eine der Komponenten aufweist. Die oben beispielhaft angegebene Aufzählung von Komponenten oder Aggregaten eines Schienenfahrzeugs bedarf der Kühlung. Zu diesem Zweck weisen bekannte Schienenfahrzeuge typischerweise im unteren Seitenwandbereich, d. h. in der Nähe der zu kühlenden Komponenten Eintrittsöffnungen für Frischluft auf, die dann als Kühlluft mit Hilfe des Lüfters den betreffenden Komponenten zugeführt wird. Diese Komponenten können beispielsweise mit Kühlrippen ausgestattet sein, so dass deren wirksame Kühlung mit Hilfe der Kühlluft ermöglicht wird. Beispiele sind Öl-/Wasserkühlkreisläufe und -kühler.The invention relates to a rail vehicle with a cooling arrangement for arranged in an underfloor area components, such as a power supply block, a power converter, a transformer or a traction motor, wherein the cooling arrangement has a first inlet for fresh air to be used as cooling air and at least one fan for guiding the cooling air towards at least one of the components. The list of components or units of a rail vehicle given above by way of example requires cooling. For this purpose, known rail vehicles typically have in the lower sidewall area, d. H. In the vicinity of the components to be cooled inlet openings for fresh air, which is then supplied as cooling air by means of the fan to the respective components. These components may for example be equipped with cooling fins, so that their effective cooling is made possible by means of the cooling air. Examples are oil / water cooling circuits and coolers.
Die gewählte Anordnung ist strömungstechnisch günstig, da nur kurze Kühlluftwege zurück zu legen sind, um die die durch die Eintrittsöffnung einströmende Frischluft an den Ort zu führen, an dem ein Kühleffekt erzielt werden soll.The arrangement chosen is favorable in terms of flow, since only short cooling air paths are to be laid in order to guide the fresh air flowing through the inlet opening to the location at which a cooling effect is to be achieved.
Im Winterbetrieb des Schienenfahrzeugs ergibt sich jedoch bei Fahrten während Schneefalles und bei Durchfahren von verschneiten Gebieten im Unterflurbereich das Problem, dass mit der Kühlluft zur Gerätekühlung Schnee angesaugt wird, der sich im Ansaugbereich und/oder in dahinter liegenden Luftkanälen und darin befindlichen Bauteilen, wie Staubabscheider und Schmutzgitter, ablagert, den Kühlluftstrom behindert, ggf. sogar verschließt und auch zur Spannungsüberbrückung zwischen elektrischen Anschlüssen führen kann. Insofern besteht im Winterbetrieb die Gefahr, dass elektrische Baugruppen der Komponenten entweder in Folge Überhitzung oder aber auch durch Kurzschlüsse außer Betrieb gesetzt werden können.In winter operation of the rail vehicle, however, arises when driving during snowfall and when driving through snowy areas in the underfloor area, the problem that is sucked with the cooling air for cooling equipment snow, located in the intake and / or underlying air ducts and components therein, such as dust and dirt grid, deposits, hinders the cooling air flow, possibly even closes and also to Voltage bridging between electrical connections may result. In this respect, there is the risk in winter operation that electrical components of the components can be put out of operation either as a result of overheating or even by short circuits.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, ein Schienenfahrzeug anzugeben, bei dem sich für den Winterbetrieb eine erhöhte Betriebssicherheit im Hinblick auf die Kühlung der im Unterflurbereich angeordneten Komponenten ergibt .Proceeding from this, the present invention seeks to provide a rail vehicle, in which there is an increased reliability in winter operation with regard to the cooling of arranged in the underfloor area components.
Diese Aufgabe wird bei dem eingangs genannten Schienenfahrzeug dadurch gelöst, dass die Kühlanordnung eine mit dem Lüfter strömungstechnisch verbundene zweiteThis object is achieved in the aforementioned rail vehicle in that the cooling arrangement with the fan fluidly connected second
Eintrittsöffnung für als Kühlluft zu verwendende Frischluft aufweist, die oberhalb von Seitenschürzen desHaving inlet for fresh air to be used as cooling air, which is above side skirts of the
Schienenfahrzeugs angeordnet und über einen Luftkanal mit dem Unterflurbereich verbunden ist.Rail vehicle is arranged and connected via an air duct with the underfloor area.
Aufgrund der erhöhten Anordnung der zweiten Eintrittsöffnung wird erreicht, dass diese Eintrittsöffnung im Winterbetrieb deutlich geringer mit Schnee beaufschlagt ist, so dass eine Kühlluftzuführung über die zweite Eintrittsöffnung auch im Winterbetrieb zuverlässig von statten gehen kann.Due to the increased arrangement of the second inlet opening is achieved that this inlet opening is significantly less exposed to snow in winter, so that a cooling air supply via the second inlet opening in winter can reliably go from stock.
Die zweite Einrittsöffnung kann im Dachbereich des Schienenfahrzeugs angeordnet sein, so dass sie vollständig gegenüber aufgewirbeltem Schnee geschützt ist. Auch eine Anordnung der zweiten Eintrittsöffnung in einemThe second entry opening may be located in the roof area of the rail vehicle so that it is completely protected from whirled-up snow. Also, an arrangement of the second inlet opening in one
Seitenwandbereich oberhalb der Seitenschürzen des Schienenfahrzeugs ist möglich. Hier ist für den Fachmann ein geeigneter Kompromiss zwischen einer Ausdehnung eines Strömungskanals von der zweiten Eintrittsöffnung zu dem mindestens einen Lüfter und dem damit einhergehendenSidewall area above the side skirts of the rail vehicle is possible. Here, a suitable compromise between an expansion of a flow channel from the second inlet opening to the at least one fan and the associated one is for the person skilled in the art
Strömungswiderstand und einer Beaufschlagung mit Schnee der zweiten Eintrittsöffnung zu finden. Die zweite Eintrittsöffnung kann mit einem Einlassgitter und einem davon stromabwärts gelegenen Abscheidegitter ausgestattet sein. Dies bewirkt einen Schutz der zweiten Eintrittsöffnung bei Schneefall vor in den Luftkanal zum Lüfter gelangenden Schnee.To find flow resistance and exposure to snow of the second inlet opening. The second inlet opening may be provided with an inlet grate and a downstream separator grate. This causes a protection of the second inlet opening during snowfall in front of the fan in the air channel snow.
Dabei kann das Abscheidegitter zweiteilig ausgebildet sein, wobei ein jeweiliges Teilgitter schräg in Richtung auf einen Einlass des Luftkanals verläuft. Die Ausrichtung der Teilgitter kann sowohl in Querrichtung zur Längsachse desIn this case, the Abscheidegitter be formed in two parts, wherein a respective sub-grid extends obliquely in the direction of an inlet of the air channel. The orientation of the sublattice can be both in the transverse direction to the longitudinal axis of the
Triebwagens als auch in Längsrichtung des Triebwagens gewählt sein. In beiden Fällen ergibt sich eine homogene Verteilung der Luftgeschwindigkeit.Triebwagens be chosen as well as in the longitudinal direction of the railcar. In both cases, a homogeneous distribution of the air velocity results.
Bei einer weiteren Ausführungsform, welche dasIn a further embodiment, which the
Abscheidegitter betrifft, ist das Abscheidegitter wiederum zweigeteilt und wird von unten angeströmt, so dass das Absetzen von Schnee und Schmutz wirksam vermindert wird. Besonders günstig erscheint eine Ausführungsform, bei der das Abscheidegitter in einem Abstand zu einer Dachoberseite desAs far as the separator grid is concerned, the separator grid is in turn divided into two and flows from below, so that the settling of snow and dirt is effectively reduced. Particularly favorable appears an embodiment in which the Abscheidegitter at a distance to a roof top of the
Triebwagens angeordnet ist und von Fahrtwind unterspült wird, so dass ebenfalls das Absetzen von Schnee vermindert wird. Bei dieser Ausführungsform kann ggf. auf einen Stützlüfter zum Transportieren der Kühlluft in Richtung auf den Unterflurbereich verzichtet werden.Triebwagens is arranged and is undercut by wind, so that also the deposition of snow is reduced. In this embodiment, it may be possible to dispense with a support fan for transporting the cooling air in the direction of the underfloor area.
Bei alternativen Ausführungsformen des Abscheidegitters kann dieses auch einteilig sein.In alternative embodiments of the Abscheidegitters this can also be in one piece.
Die zweite Eintrittsöffnung kann über einen oder mehrere Strömungskanäle mit dem Unterflurbereich desThe second inlet opening can communicate with the underfloor area of the building via one or more flow channels
Schienenfahrzeugs verbunden sein. Diese Strömungskanäle sind in Schienenfahrzeuglängsrichtung hintereinander angeordnet, wobei bei diesem Ausführungsbeispiel die Strömungskanäle von der zweiten Eintrittsöffnung aus im Wesentlichen vertikal in Richtung auf den Unterflurbereich verlaufen. Dies ergibt einen geringen Raumbedarf und der Fahrgastbereich wird nicht zu sehr eingeschränkt. Die erste Eintrittsöffnung kann ein verschließbares Einlassgitter aufweisen. Diese verschafft die Möglichkeit, die erste Eintrittsöffnung für einen Winterbetrieb teilweise oder auch vollständig zu verschließen, so dass eineRail vehicle to be connected. These flow channels are arranged one behind the other in the longitudinal direction of the rail vehicle, with the flow channels extending from the second inlet opening substantially vertically in the direction of the underfloor region in this exemplary embodiment. This results in a small space requirement and the passenger area is not too limited. The first inlet opening may have a closable inlet grille. This provides the ability to close the first inlet opening for a winter operation partially or completely, so that a
Kühlluftzuführung für die Komponenten im Unterflurbereich bis zu 100% der Kühlluft von der zweiten Eintrittsöffnung kommt.Cooling air supply for the components in the underfloor area comes up to 100% of the cooling air from the second inlet opening.
Dabei kann die Kühlanordnung mit Hilfe eines Steuermoduls gesteuert sein, welches die Anteile von Kühlluft von der ersten Eintrittsöffnung und der zweiten Eintrittsöffnung an der unterflur benutzten Kühlluft bestimmt. Hier kann zwischen einem Sommer- und einem Winterbetrieb unterschieden werden. Insofern kann das Steuermodul derart ausgelegt sein, dass bei Betrieb im Sommer der Anteil der Kühlluft von der ersten Eintrittsöffnung im Bereich zwischen 30 und 100% und der Anteil der Kühlluft von der zweiten Eintrittsöffnung im Bereich zwischen 0 und 70% liegt. Im Winterbetrieb wird demgegenüber die erste Eintrittsöffnung typischerweise verschlossen, so dass die Kühlluft ausschließlich von der zweiten Eintrittsöffnung aus bereitgestellt wird.In this case, the cooling arrangement can be controlled by means of a control module which determines the proportions of cooling air from the first inlet opening and the second inlet opening at the underfloor used cooling air. Here can be distinguished between a summer and a winter operation. In this respect, the control module can be designed such that when operating in summer, the proportion of cooling air from the first inlet opening in the range between 30 and 100% and the proportion of cooling air from the second inlet opening in the range between 0 and 70%. In winter operation, by contrast, the first inlet opening is typically closed, so that the cooling air is provided exclusively from the second inlet opening.
Die erste Einlassöffnung kann typischerweise im Bereich der Seitenschürzen des Schienenfahrzeugs angeordnet sein, um einen strömungstechnisch günstigen Weg für die Kühlluft zu den zu kühlenden Komponenten zu schaffen.The first inlet opening can typically be arranged in the region of the side skirts of the rail vehicle in order to create a flow-favorable route for the cooling air to the components to be cooled.
Bei einem weiteren Ausführungsbeispiel kann das Steuermodul derart ausgelegt sein, dass zwischen einem Betrieb im Sommer und einem Betrieb in Winter verschiedene Kühlluftstromdichten gewählt werden. Dies kann insbesondere Temperaturabhängig geschehen, so dass in einem Winterbetrieb der mindestens eine Lüfter mit geringerer Drehzahl betrieben werden kann, da die einströmende Frischluft eine gegenüber dem Sommer deutlich verminderte Temperatur aufweist.In a further embodiment, the control module may be designed such that different cooling air flow densities are selected between operation in summer and operation in winter. This can in particular be temperature-dependent, so that in a winter operation, the at least one fan can be operated at a lower speed, since the incoming fresh air has a relation to the summer significantly reduced temperature.
Alternativ können einzelne Aggregatlüfter bzw. Komponentenlüfter mit einem Bypass-Kanal versehen sein, der zurück zu einer Saugseite des Aggregatlüfters führt. In diesem Fall kann die Lüfterdrehzahl konstant bleiben, ein Druckniveau in einer Bodenwanne des Schienenfahrzeugs im Unterflurbereich bleibt hoch, da ein Leersaugen der Bodenwanne verhindert wird, und ein Arbeitspunkt desAlternatively, individual unit fans or component fans can be provided with a bypass channel, the leading back to a suction side of the unit fan. In this case, the fan speed can remain constant, a pressure level in a floor pan of the rail vehicle in the underfloor area remains high, since a vacuuming of the floor pan is prevented, and an operating point of the
Aggregatlüfters bleibt ideal. Daraus ergibt sich ein hoher Wirkungsgrad des Aggregatlüfters, wobei weniger Geräuschentwicklung vorliegt.Aggregate fan remains ideal. This results in a high efficiency of the unit fan, with less noise.
Die Erfindung wird nachfolgend beispielshalber anhand der Zeichnungen noch näher erläutert. Es zeigen:The invention will be explained in more detail by way of example with reference to the drawings. Show it:
Figur 1 eine Seitenansicht, teilweise im Schnitt, einesFigure 1 is a side view, partially in section, one
Triebwagens,Railcar,
Figur 2 eine Querschnittsansicht eines Dachbereiches desFIG. 2 is a cross-sectional view of a roof area of the roof
Triebwagens von Figur 1,Railcar of Figure 1,
Figur 3 eine Querschnittsansicht einer weiteren Ausführungsform des Dachbereiches des Triebwagens von Figur 1,FIG. 3 shows a cross-sectional view of a further embodiment of the roof area of the railcar of FIG. 1,
Figur 4 eine Längsschnittansicht eines Dachbereichs desFIG. 4 is a longitudinal sectional view of a roof area of the roof
Triebwagens von Figur 1 in einer anderen Ausführungsform undRailcar of Figure 1 in another embodiment and
Figur 5 eine Längsschnittansicht eines Unterflurbereichs des Triebwagens von Figur 1.FIG. 5 shows a longitudinal sectional view of an underfloor region of the railcar of FIG. 1.
Die Darstellung eines Triebwagens 1 in Figur 1 zeigt einen Unterflurbereich 2, in dem verschiedene elektrische Komponenten untergebracht sind, die bei Betrieb zu kühlen sind. Drehgestelle 3 sind mit zugehörigen Fahrmotoren 4 ausgestattet, welche mit Hilfe von jeweiligen Fahrmotorlüftern 5 gekühlt werden. Eine Unterseite des Triebzuges 1 ist mit Hilfe einer Bodenwanne 6 strömungstechnisch abgedichtet, so dass oberhalb der Bodenwanne 6 Kühlluftströmungen geführt werden können. Oberhalb der Bodenwanne 6 befindet sich außerdem ein weiteres elektrisches Aggregat 7, bei dem es sich um einen Energieversorgungsblock, einen Stromrichter oder einen Transformator, genauer Kühleinheiten der betroffenen Geräte, handeln kann. Die Bodenwanne 6 setzt sich an ihrenThe representation of a railcar 1 in Figure 1 shows an underfloor area 2, in which various electrical components are housed, which are to be cooled during operation. Bogies 3 are equipped with associated traction motors 4, which are cooled by means of respective traction motor 5 fans. An underside of the multiple unit 1 is fluidly sealed by means of a bottom tray 6, so that 6 cooling air flows can be performed above the floor pan. Above the base tray 6 is also a further electrical unit 7, which may be a power supply block, a power converter or a transformer, more precisely, cooling units of the devices concerned. The bottom tray 6 sits down at their
Außenkanten in Seitenschürzen 8 des Triebzuges 1 fort. Im Bereich dieser Seitenschürzen 8 sind erste, verschließbare Einlassgitter 9 für als Kühlluft zu verwendende Frischluft vorgesehen. Über diese Einlassgitter 9 eintretende Frischluft wird von den Fahrmotorlüftern 5 beispielsweise zum Kühlen der Fahrmotoren 4 verwendet. Eine Kühlanlage 10, die oberhalb der Bodenwanne 6 und in Längsrichtung des Triebwagens 1 etwa in der Mitte vorgesehen ist, befördert Kühlluft in Richtung auf die Fahrmotorlüfter 4 und das zu kühlende Aggregat 7.Outside edges in side skirts 8 of the multiple unit 1 continued. In the area of these side skirts 8, first, closable inlet gratings 9 are provided for fresh air to be used as cooling air. Fresh air entering via this inlet grille 9 is used by the traction motor fans 5, for example for cooling the traction motors 4. A cooling system 10, which is provided above the floor pan 6 and in the longitudinal direction of the railcar 1 approximately in the middle, conveys cooling air in the direction of the traction motor fan 4 and the unit to be cooled. 7
Im Dachbereich des Triebwagens 1 finden sich zweite Einlassgitter 11. Über die zweiten Einlassgitter 11 einströmende Frischluft gelangt zunächst zu jeweils zugehörigen Abscheidegittern 12, die, in Längsrichtung des Triebwagens 1 gesehen, schräg und in Richtung auf einen vertikal verlaufenden Luftkanal 13 nach unten geneigt angeordnet sind. Ein Stützlüfter 14 befördert Kühlluft aus dem Dachbereich in Richtung auf die Kühlanlage 10. Es können weitere Luftkanäle vorgesehen sein, die in Fahrzeuglängsrichtung hintereinander angeordnet sind undIn the roof area of the railcar 1 there are second inlet grille 11. Fresh air flowing in via the second inlet grille 11 initially reaches respective associated separation grids 12, which, viewed in the longitudinal direction of the railcar 1, are inclined and inclined downwards in the direction of a vertically extending air duct 13 , A support fan 14 conveys cooling air from the roof area in the direction of the cooling system 10. It can be provided further air ducts, which are arranged one behind the other in the vehicle longitudinal direction and
Kühlluft zu dem Unterflurbereich 2 transportieren, wobei dann alle Luftkanäle von zweiten Eintrittsöffnungen ausgehen.Transport cooling air to the underfloor area 2, in which case all air channels emanate from second inlet openings.
Eine Kühlanordnung für den Unterflurbereich des Triebwagens 1 setzt sich somit aus zwei Einlassöffnungen mit den ersten Einlassgittern 11 im Dachbereich und zwei Einlassöffnungen der ersten Einlassgitter 9 im Seitenschürzenbereich des Triebzuges 1, dem Luftkanal 13 und der Kühlanlage 10, die mehrere Lüfter umfassen kann, zusammen. Unterhalb der Kühlanlage 10 ist in der ansonsten abgedichteten Bodenwanne 6 ein Luftauslass 15 vorgesehen, der als Auslass für den Kühlluftstrom einer Kühlanlage dient. Die Kühlanordnung kann manuell oder automatisch zwischen einem Sommerbetrieb und einem Winterbetrieb umgeschaltet werden. Dazu dient ein hier nicht näher dargestelltes Steuermodul, das derart ausgelegt sein kann, das bei Betrieb im Sommer der Anteil der Kühlluft von den erstenA cooling arrangement for the underfloor region of the railcar 1 is thus composed of two inlet openings with the first inlet grille 11 in the roof area and two inlet openings of the first inlet grille 9 in the side skirt area of the multiple unit 1, the air duct 13 and the cooling system 10, which may comprise a plurality of fans. Below the cooling system 10, an air outlet 15 is provided in the otherwise sealed floor pan 6, which serves as an outlet for the cooling air flow of a cooling system. The cooling arrangement can be switched manually or automatically between a summer operation and a winter operation. Serves a not-shown here control module, which can be designed so that when operating in summer, the proportion of cooling air from the first
Einlassgittern 9 im Bereich zwischen 30 und 100% und der Anteil der Kühlluft von den zweiten Einlassgittern 11 im Bereich zwischen 0 und 70% liegt. Im Winterbetrieb werden demgegenüber die ersten Einlassgitter manuell oder automatisch verschlossen, so dass die Kühlluft ausschließlich von den zweiten Einlassgittern 11 bereitgestellt wird. Diese Vorgehensweise hat den Vorteil, dass im Winterbetrieb die als Kühlluft verwendete Frischluft im Wesentlichen schneefrei ist. Aufgrund der Anordnung der zweiten Einlassgitter 11 im Dachbereich kann hochgewirbelter Schnee nicht auf die zweiten Einlassgitter 11 treffen. Bei Schneefall wirken die Abscheidegitter 12 in der Weise, dass in der Luft vorhandener Schnee gefiltert wird, bevor die Frischluft mit Hilfe des Stützlüfters 14 weiter durch den Luftkanal 13 befördert wird.Inlet grids 9 in the range between 30 and 100% and the proportion of cooling air from the second inlet grids 11 in the range between 0 and 70%. In winter operation, on the other hand, the first inlet grates are closed manually or automatically, so that the cooling air is provided exclusively by the second inlet grids 11. This procedure has the advantage that in winter operation, the fresh air used as cooling air is substantially free of snow. Due to the arrangement of the second inlet grille 11 in the roof area, highly swirled snow can not hit the second inlet grille 11. During snowfall, the separation grids 12 act to filter snow present in the air before the fresh air is further conveyed through the air duct 13 by means of the support fan 14.
Während in Figur 1 eine erste Ausführungsform der Anordnung der Abscheidegitter 12 veranschaulicht ist, zeigt die Figur 2 eine alternative Anordnung von Abscheidegittern 12A, die horizontal in einem Abstand zur Dachoberfläche des Triebzuges 1 liegen. Die Abscheidegitter 12A werden ausschließlich von unten angeströmt, so dass die Gravitationskraft verhindert werden kann, dass sich Schnee und Schmutz absetzt.While FIG. 1 illustrates a first embodiment of the arrangement of the separation grids 12, FIG. 2 shows an alternative arrangement of separation gratings 12A, which lie horizontally at a distance from the roof surface of the multiple unit 1. The separation grids 12A are only flowed in from below, so that the gravitational force can be prevented, that settles snow and dirt.
Eine weitere Alternative zur Anordnung von Abscheidegittern 12B geht aus Figur 3 hervor. Hier sind die Abscheidegitter 12B ebenfalls schräg angeordnet, wobei sie von außen nach Innen in Richtung auf einer Einlassöffnung des Luftkanals 13 abfallen. Dies bewirkt eine günstige Verteilung der Luftgeschwindigkeit der als Kühlluft zu verwendenden Frischluft. Eine solche günstige Verteilung ergibt sich auch bei der Abscheidegitteranordnung nach Figur 1. In Figur 4 ist eine Anordnung von Abscheidegittern 12C so gewählt, dass sie von Frischluft ständig unterspült werden, so dass sich gerade bei hoher Fahrgeschwindigkeit kein Schnee an den Abscheidegittern 12C absetzen kann, da kein Totwasser vorhanden ist. Abgeschiedener Schnee hat somit eine sehr geringe Verweildauer auf den Abscheidegittern 12C, da er aufgrund der Unterspülung bei hoher Fahrgeschwindigkeit umgehend abtransportiert wird. Ein Zwischenraum zwischen einer Dachoberseite des Triebzuges 1 und den Abscheidegittern 12C ist dabei strömungsgünstig so geformt, dass einAnother alternative to the arrangement of Abscheidegittern 12B is apparent from Figure 3. Here, the Abscheidegitter 12 B are also arranged obliquely, wherein they fall from outside to inside in the direction of an inlet opening of the air duct 13. This causes a favorable distribution of the air velocity of the fresh air to be used as cooling air. Such a favorable distribution also results in the deposition grid arrangement according to FIG. 1. In Figure 4, an array of Abscheidegittern 12C is chosen so that they are constantly undermined by fresh air, so that especially at high speed no snow can settle on the Abscheidegittern 12C, since no dead water is present. Separated snow thus has a very short residence time on the separation gratings 12C, since it is removed immediately due to the under-flushing at high speed. A gap between a roof top of the multiple unit 1 and the Abscheidegittern 12 C is aerodynamically shaped so that a
Schneestau in diesem Zwischenraum wirksam verhindert wird.Snow accumulation in this space is effectively prevented.
Figur 5 zeigt einen Ausschnitt aus dem Unterflurbereich des Triebwagens 1 aus dem Luftkanal 13 kommende Kühlluft wird in Richtung auf den Fahrmotor 4 als Beispiel für einenFigure 5 shows a section of the underfloor region of the railcar 1 from the air duct 13 coming cooling air is in the direction of the traction motor 4 as an example of a
Kühlluftverbraucher umgelenkt. Der Fahrmotorlüfter 5 befindet sich auf einer Eintrittsseite eines Kühlluftkanals 16, der Kühlluft zu dem Fahrmotor 4 transportiert. Unmittelbar stromabwärts des Fahrmotorlüfters 5 verengt sich der Kühlluftkanal 16, wobei im Bereich dieser Verengung eineCooling air consumer deflected. The traction motor fan 5 is located on an inlet side of a cooling air duct 16, which transports cooling air to the traction motor 4. Immediately downstream of the traction motor fan 5, the cooling air channel 16 narrows, wherein in the region of this constriction
Bypass-Klappe 17 vorgesehen ist. Wenn die Bypass-Klappe 17 geschlossen ist, wird der gesamte Kühlluftstrom von dem Fahrmotorkühler 5 aus dem Fahrmotor 4 zugeführt. Wenn die Bypassklappe 17 geöffnet wird, wird ein damit bestimmter Anteil des Kühlluftstroms nach unten in Richtung auf dieBypass flap 17 is provided. When the bypass door 17 is closed, the entire cooling air flow from the driving motor cooler 5 is supplied from the traveling motor 4. When the bypass door 17 is opened, a proportion of the cooling air flow determined therewith is directed downward in the direction of
Bodenwanne 6 umgelenkt und am Fahrmotorlüfter 5 wobei zurück zu einer Eintrittseite des Fahrmotorlüfters 5 geleitet.Bottom tray 6 deflected and the traction motor fan 5 being passed back to an inlet side of the traction motor fan 5.
Die Bypass-Regelung des Fahrmotorlüfters 5, der hier stellvertretend für Lüfter steht, die bestimmten zu kühlenden Aggregaten zugeordnet sind, dient zu Reduktion des Volumenstroms im Winterbetrieb, der den Fahrmotor 4 zugeführt wird. Bleibt die Lüfterdrehzahl des Fahrmotorlüfters 5 konstant, wenn die Bypass-Klappe 17 für den Winterbetrieb geöffnet ist, steigt das Druckniveau in der Bodenwanne 6 und der Arbeitspunkt des Aggregatlüfters bleibt ideal, so dass ein hoher Wirkungsgrad und eine geringe Geräuschentwicklung erreicht werden. Der Bypass-Volumenstrom entspricht dann der Differenz aus dem Volumenstrom V5 für den Sommerbetrieb und dem Volumenstrom Vw für den Winterbetrieb. Dabei wird von der Tatsache Gebrauch gemacht, dass die im Winter zugeführte Frischluft von niedrigerer Temperatur ist, so dass ein geringerer Volumenstrom zum Kühlen von Aggregaten, beispielsweise des Fahrmotors 4, ausreicht. The bypass control of the traction motor fan 5, which is here representative of fans that are assigned to specific units to be cooled, serves to reduce the volume flow in winter operation, which is supplied to the traction motor 4. If the fan speed of the traction motor fan 5 remains constant when the bypass door 17 is opened for winter operation, the pressure level in the bottom tray 6 rises and the operating point of the unit fan remains ideal, so that high efficiency and low noise are achieved. The bypass volume flow then corresponds to the Difference from the volume flow V 5 for summer operation and the volume flow V w for winter operation. It is made use of the fact that the fresh air supplied in the winter of lower temperature, so that a lower flow rate for cooling of aggregates, such as the drive motor 4, sufficient.
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006032335A DE102006032335B4 (en) | 2006-07-12 | 2006-07-12 | Rail vehicle with a cooling arrangement for arranged in an underfloor area components |
PCT/EP2007/056147 WO2008006679A2 (en) | 2006-07-12 | 2007-06-20 | Rail vehicle comprising a cooling system for components that are arranged in an underfloor region |
Publications (2)
Publication Number | Publication Date |
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EP2038154A2 true EP2038154A2 (en) | 2009-03-25 |
EP2038154B1 EP2038154B1 (en) | 2010-08-18 |
Family
ID=38814525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP07730274A Not-in-force EP2038154B1 (en) | 2006-07-12 | 2007-06-20 | Rail vehicle comprising a cooling system for components that are arranged in an underfloor region |
Country Status (7)
Country | Link |
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EP (1) | EP2038154B1 (en) |
CN (1) | CN101489850B (en) |
AT (1) | ATE477984T1 (en) |
DE (2) | DE102006032335B4 (en) |
ES (1) | ES2352997T3 (en) |
RU (1) | RU2398695C1 (en) |
WO (1) | WO2008006679A2 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102008045952A1 (en) * | 2008-09-04 | 2010-03-25 | Siemens Aktiengesellschaft | Rail vehicle with switching between winter and summer operation |
WO2011050616A1 (en) * | 2009-10-31 | 2011-05-05 | 中国北车集团大连研究所有限公司 | Overhead cooling device |
DE102010017883A1 (en) * | 2010-04-21 | 2011-10-27 | Bombardier Transportation Gmbh | Arrangement for controlling the temperature of electrical components in a vehicle |
DE102010064016A1 (en) * | 2010-12-23 | 2012-06-28 | Siemens Aktiengesellschaft | Electric machine, rail vehicle and rail-bound car set |
DE102011009578A1 (en) * | 2011-01-27 | 2012-08-02 | Bombardier Transportation Gmbh | Cooling of facilities of a rail vehicle |
DE102011013175A1 (en) * | 2011-02-28 | 2012-08-30 | Bombardier Transportation Gmbh | Rail vehicle with receiving space below the ground |
DE102012210857A1 (en) | 2012-06-26 | 2014-01-02 | Siemens Aktiengesellschaft | Ventilated awning for roof equipment of rail vehicles |
DE102012214861A1 (en) * | 2012-08-21 | 2014-02-27 | Siemens Aktiengesellschaft | Air duct system for a fan of a rail vehicle |
DE102014221143B4 (en) * | 2014-10-17 | 2016-09-29 | Mahle International Gmbh | Vehicle cooling system and associated operating method |
DE102015203668A1 (en) * | 2015-03-02 | 2016-09-08 | Siemens Aktiengesellschaft | Rail vehicle with traction cooling system |
DE102015218953A1 (en) | 2015-09-30 | 2017-03-30 | Siemens Aktiengesellschaft | Vehicle with ventilation to the underfloor |
DE102015219157A1 (en) * | 2015-10-05 | 2017-04-06 | Siemens Aktiengesellschaft | Method for operating a vehicle and vehicle |
CN105370381A (en) * | 2015-11-30 | 2016-03-02 | 中国北车集团大连机车车辆有限公司 | External cooling device of internal corridor type internal combustion locomotive |
FR3055600B1 (en) * | 2016-09-06 | 2019-07-19 | Alstom Transport Technologies | END OF RAILWAY VEHICLE CAR AND RAILWAY VEHICLE |
FR3057525B1 (en) * | 2016-10-14 | 2018-12-07 | Alstom Transport Technologies | RAILWAY VEHICLE WITH COOLING TOWER |
WO2018137758A1 (en) | 2017-01-24 | 2018-08-02 | Stadler Altenrhein Ag | Vehicle having air routing, folding bellows, and use of a folding bellows |
FR3070353B1 (en) * | 2017-08-30 | 2019-09-06 | Speedinnov | HIGH SPEED TRAIN MOTOR |
DE102017222782A1 (en) * | 2017-12-14 | 2019-06-19 | Mahle International Gmbh | Vehicle cooling system for a rail vehicle |
EP3594081A1 (en) * | 2018-07-09 | 2020-01-15 | Siemens Mobility GmbH | Drive system for a rail vehicle |
CN109835356B (en) * | 2019-03-25 | 2020-09-04 | 中车青岛四方车辆研究所有限公司 | Water cooling device of rail vehicle traction system |
DE102022207794A1 (en) * | 2022-07-28 | 2024-02-08 | Siemens Mobility GmbH | Rail vehicle |
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ATE171425T1 (en) * | 1993-05-21 | 1998-10-15 | Schweizerische Lokomotiv | DEVICE FOR VENTILATION AT LEAST ONE TRACTION MOTOR AND/OR A COOLING DEVICE OF A RAIL LOCATED VEHICLE AND RAIL LOCATED VEHICLE WITH SUCH A DEVICE |
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2006
- 2006-07-12 DE DE102006032335A patent/DE102006032335B4/en not_active Expired - Fee Related
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2007
- 2007-06-20 DE DE502007004806T patent/DE502007004806D1/en active Active
- 2007-06-20 CN CN2007800264949A patent/CN101489850B/en not_active Expired - Fee Related
- 2007-06-20 WO PCT/EP2007/056147 patent/WO2008006679A2/en active Application Filing
- 2007-06-20 RU RU2009104701/11A patent/RU2398695C1/en active
- 2007-06-20 AT AT07730274T patent/ATE477984T1/en active
- 2007-06-20 ES ES07730274T patent/ES2352997T3/en active Active
- 2007-06-20 EP EP07730274A patent/EP2038154B1/en not_active Not-in-force
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
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DE502007004806D1 (en) | 2010-09-30 |
ES2352997T3 (en) | 2011-02-24 |
WO2008006679A2 (en) | 2008-01-17 |
ATE477984T1 (en) | 2010-09-15 |
EP2038154B1 (en) | 2010-08-18 |
CN101489850A (en) | 2009-07-22 |
CN101489850B (en) | 2010-12-29 |
DE102006032335B4 (en) | 2008-04-30 |
DE102006032335A1 (en) | 2008-01-17 |
RU2398695C1 (en) | 2010-09-10 |
WO2008006679A3 (en) | 2008-03-06 |
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