EP2481898A1 - Système de refroidissement pour un véhicule ferroviaire - Google Patents

Système de refroidissement pour un véhicule ferroviaire Download PDF

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Publication number
EP2481898A1
EP2481898A1 EP11010205A EP11010205A EP2481898A1 EP 2481898 A1 EP2481898 A1 EP 2481898A1 EP 11010205 A EP11010205 A EP 11010205A EP 11010205 A EP11010205 A EP 11010205A EP 2481898 A1 EP2481898 A1 EP 2481898A1
Authority
EP
European Patent Office
Prior art keywords
cooling
heat exchanger
cooling medium
circuit
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11010205A
Other languages
German (de)
English (en)
Inventor
Dieter Rabus
Tobias Dochtermann
Sebastian Knirsch
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2481898A1 publication Critical patent/EP2481898A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C7/00—Other locomotives or motor railcars characterised by the type of motive power plant used; Locomotives or motor railcars with two or more different kinds or types of motive power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/02—Intercooler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F01P2060/045—Lubricant cooler for transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/12—Turbo charger

Definitions

  • the invention relates to a cooling system for a powered railway vehicle, with at least two heat generators whose heat has to be dissipated, and which each have at least one cooling circuit.
  • drives come for example diesel-hydraulic drives into consideration, diesel-electric drives, electric drives, gas turbines.
  • the design of a cooling system for a rail vehicle depends on a variety of factors.
  • the basic concept of the rail vehicle whether it is a locomotive or a railcar - decides on the available space in the rail vehicle and thus on the design and arrangement of the cooling system in the rail vehicle.
  • railcars mainly serve to carry passengers
  • locomotives are also used in freight trains, but are also suitable for the rapid transportation of passengers.
  • its drive power is also important.
  • high-performance locomotives a larger waste heat is generated than is the case, for example, with low-power railcars.
  • the performance of the cooling system must therefore be adapted to the performance of the rail vehicle.
  • the number of units such as fan systems and air conditioning systems for the interior cooling of railcars and wagons or auxiliary equipment in railway maintenance vehicles and locomotives.
  • the climatic conditions at the place of use of the rail vehicle in the design of a cooling system must be included.
  • the geographical location of the sites and thus the route profile decide on the performance of the rail vehicle and its cooling system.
  • Such cooling systems for rail vehicles have long been known. They essentially comprise one or more fans and one or more Heat exchangers which are arranged in at least one cooling circuit.
  • a cooling medium is conveyed in the cooling circuit by means of a pump, waste heat being taken up by the drive system and the units from the cooling medium in order to release it to the environment via an air volume flow which flows through relatively large heat removal surfaces of the heat exchangers.
  • cooling systems with one, two or more separate coolant circuits have been used in the past.
  • Such cooling systems have, for example, a high-temperature cooling circuit, in particular for cooling the internal combustion engine and its lubricating or hydraulic oils, and a low-temperature circuit, for example for cooling the charge air for the internal combustion engine.
  • high-temperature and low-temperature heat exchangers are also used.
  • Corresponding high and low temperature circuits can also be found in electrically driven vehicles, for example for transformer and frequency converter cooling.
  • the structural complexity of cooling systems is high. Every single cooling circuit needs at least piping, fans and other aggregates.
  • the individual heat generators such as engine, brake, etc. have a variable cooling requirement over time.
  • the cooling requirements are thus different levels, from single cooling circuit to single cooling circuit, as well as over time.
  • the cooling capacity potential of each cooling circuit also has a variable time profile and depends, for example, on the current outside temperature, the air humidity, the degree of soiling and the air pressure. Each individual cooling circuit therefore does not always work within the range of optimum efficiency, but also outside of it.
  • the invention has for its object to provide a cooling system that has a lower energy consumption and thus lower operating costs, and generates less noise.
  • the retarder requires high cooling capacity when driving downhill. But just then the required cooling capacity of the engine is minimal.
  • cooling capacity is transferred to the other cooling circuit. This is possible if the other cooling circuit currently applies a lower than its maximum possible cooling capacity and thus has a low cooling requirement.
  • the cooling capacity acting as a reserve (difference between the maximum possible cooling capacity and the current cooling capacity) of the other cooling circuit is used for the cooling of the cooling medium of the one cooling circuit.
  • the means for controlled distribution comprise a cooling medium heat exchanger which is connected to the cooling circuits so that heat energy of the one cooling circuit is transferable via the cooling medium heat exchanger to the other cooling circuit, wherein the cooling medium heat exchanger flowing through the cooling medium amount is adjustable by means of a regulator.
  • the cooling capacity of the one cooling circuit is extended by the cooling medium of the other cooling circuit is used in addition to the cooling.
  • the means comprise a mixing device for mixing the cooling media of the cooling circuits, wherein the mixing device via a connecting line in each case the supply line and / or return line of the cooling circuits interconnected by cooling medium, wherein the cooling medium flowing through the connecting line by means of a respective regulator in the connecting line is adjustable ,
  • the heat exchanger functioning as a cooler has a plurality of heat exchanger surfaces through which cooling medium flows, which can be connected to one another in the manner of a cooling medium.
  • the means comprise devices for at least partial connection or disconnection of the flow around individual heat exchanger surfaces with cooling medium. This means that the effective total heat exchanger surface flown by the cooling medium can be varied according to the heat output currently required between the circuits. The total area of the heat exchanger thus remains the same. However, it is allocated to the individual cooling circuits depending on the load.
  • the flow lines for example, two cooling circuits and the return lines with each other is achieved that the cooling medium from all connected in this way cooling circuits, the heat exchanger surfaces as a heat exchanger acting radiator flows.
  • the heat exchanger surfaces of the radiator with a relatively low degree of utilization are used to support the cooling of the one cooling circuit with a currently high degree of utilization.
  • the cooling medium cooled by the drive motor and / or the at least one heat generating unit is cooled by means of at least two unit heat exchangers, wherein a first unit heat exchanger in a first cooling circuit and a second unit heat exchanger in a second cooling circuit is arranged and both unit heat exchanger based on the flowing through them , Cooling medium to be cooled are connected in parallel or in series with each other. This ensures that the unit, which is arranged in the cooling circuit with currently high cooling demand, yet sufficiently cooled, in addition, the resulting heat in the unit is transferred to the cooling circuit lower cooling demand.
  • FIG. 1 is a cooling system comprising a cooling circuit 1, which is designed here as a high-temperature cooling circuit shown.
  • a cooling circuit 1 which is designed here as a high-temperature cooling circuit shown.
  • the following components are connected in series in the flow direction of the cooling medium circulated therein: a drive motor 4, a heat exchanger 3, which is designed as a liquid-air cooler, a further heat exchanger 9, which is designed as a liquid-liquid cooler, and a Cooling medium pump 2 for circulating the cooling medium.
  • the components could be arranged in a different order than shown here.
  • the heat arising in the cooling circuit 1 is dissipated via the heat exchanger 3, which in the present case is flowed through by cooling air circulated by means of a fan 19.
  • the resulting heat in the cooling circuit 1 is thus dissipated convectively into the external environment.
  • another cooling circuit 10 In the FIG. 1 is shown in dashed lines another cooling circuit 10.
  • the latter is in the present case designed as a low-temperature cooling circuit.
  • the following components are arranged one behind the other in the flow direction of the cooling medium circulating therein: a cooling medium pump 12, a heat exchanger 14, which is embodied here as an air-liquid cooler, another heat exchanger 13, in the present case designed as an air-liquid cooler, and an additional heat exchanger 11, for example a hydrostatic device.
  • the heat exchanger 13 is assigned a separate fan 20.
  • both heat exchangers 3, 13, for example, viewed in the flow direction of the cooling air could be arranged one behind the other, wherein both heat exchangers 3, 13 could be assigned a common fan.
  • the compressed by means of a compressor 17 of an exhaust gas turbocharger 16 fresh air is intermediately cooled before it is supplied to the drive motor 4 again.
  • the exhaust gas emerging from the drive motor 4 which acts on a turbine 18, which is in drive connection with the compressor 17 of the exhaust gas turbocharger 16, acts.
  • the in the FIG. 2 shown cooling system differs from the in FIG. 1 represented by the fact that instead of the transmission 8 now an electrical Generator 21 is directly in drive connection with the drive motor 4, which electrical power via a power converter 22 on traction motors 23, which drive, for example via an axle drive wheels 15 transmits.
  • the generator 21, power converter 22, traction motor 23 and the axle drive can be understood as heat generating units and thus be connected to the cooling circuits 1, 10 for cooling (not shown). Alternatively, as shown, they may be cooled via respective fans associated with each individual unit.
  • FIG. 3 is a further schematic representation of a cooling system of a rail vehicle shown.
  • the rail vehicle is driven in the present case purely electrically, for which purpose the rail vehicle to drive the electrical energy from a traction current line 25 takes, which is fed to a transformer 24 for conversion.
  • the transformer 24 is connected to a power converter 22 and the traction motors, of which only one designated by the reference numeral 23, shown, is electrically connected.
  • the cooling circuit 1 is used for cooling the transformer 4 flowing through the transformer oil
  • the cooling circuit 10 is used for cooling the converter 22 flowing through the coolant.
  • Both heat exchangers 3, 13 are in the present case connected in series in the flow direction of the cooling air flowing against them. Both heat exchangers 3, 13 are assigned a single fan 19 in the present case.
  • FIGS. 4 to 9 each show a preferred embodiment of a cooling system for a rail vehicle, where there the drive motor 4 of both cooling circuits 1, 10 is cooled, for example by the exchange of heat - see reference numerals 6 and 7.
  • the cooling systems shown there are simplified, so that additional, in the FIGS. 1 to 3 shown components are not shown there.
  • the in the FIGS. 4 to 9 shown However, embodiments could be incorporated in the FIGS. 1 to 3 used cooling systems are used, even in combination.
  • the FIG. 4 essentially shows the item FIG. 1 ,
  • a heat-generating unit 5 which, for example, the transmission 8 from the FIG. 1 corresponds, via an aggregate heat exchanger 26 for heat dissipation to the cooling circuit 1 thermally conductively connected.
  • FIG. 5 is the subject of FIG. 4 shown, wherein the unit heat exchanger 26 with respect to the cooling medium flowing through it, a further unit heat exchanger 27 is connected in parallel.
  • the additional unit heat exchanger 27 is arranged in the second cooling circuit 10 such that the cooling medium of the unit 5 is also cooled by the cooling circuit 10.
  • a regulator is arranged, by means of which the flow rate of the cooling medium to the unit heat exchanger 27 is variably adjustable.
  • the cooling capacity of the second cooling circuit 10 for cooling the unit heat exchanger 27 can be set variably. This can be regulated or controlled how much cooling capacity is transferred from the cooling circuit 1 to the cooling circuit 10.
  • FIG. 6 shows a further embodiment under development of the subject FIG. 5 ,
  • the two unit heat exchangers 26 and 27 connected in series.
  • a controller for variable adjustment of the cooling medium throughput is provided in the connecting line between the two unit heat exchangers 26 and 27, in turn.
  • FIG. 7 shows a further embodiment based on the in FIG. 4 represented item.
  • the individual heat exchanger surfaces of the heat exchangers 3, 13 are designed such that they can be selectively flowed by the cooling medium of the cooling circuits 1 and 10.
  • corresponding valves and regulators for adjusting, for example, the amount of cooling medium through the heat exchangers 3, 13 are provided.
  • one or more heat exchanger surfaces can be switched off so that they are not affected by the cooling medium and / or cooling air.
  • the heat exchangers 3, 13 in the corresponding cooling circuits 1, 10 respectively via flow lines 29 and 32 for supplying cooling medium and return lines 30, 33 for discharging cooling medium from the heat exchangers 3, 13 with the corresponding cooling circuits 1, 10 connected in flow.
  • each of the flow lines 29 and 32 of the cooling circuits 1 and 10 and the return lines 30 and 33 are connected to each other via corresponding lines.
  • the lines turn regulator for adjusting the cooling medium flow rate are arranged.
  • heat exchanger surfaces that are otherwise flown by the cooling medium of the cooling circuit 1 are flown.
  • both heat exchangers 3, 13 are used for cooling the circulating in the cooling circuit 10 cooling medium.
  • heat exchanger surfaces of the heat exchanger 13 can be used for cooling the circulating in the cooling circuit 1 cooling medium.
  • the entire heat exchanger surface can be variably allocated to the cooling circuits.
  • both cooling circuits 1, 10 are connected via a cooling medium heat exchanger 28 heat transferring together.
  • the cooling medium heat exchanger 28 is connected in such a manner to the cooling medium circuit with the two cooling circuits that cooling medium is supplied from the flow line 29 to the flow line 32.
  • FIG. 9 is still another embodiment of the cooling system according to the invention under development of the subject from the FIG. 4 shown.
  • cooling systems in which heat energy of a cooling circuit is transferred to the other cooling circuit indirectly via a heat exchanger
  • FIG. 9 the heat energy achieved by mixing the cooling media of both cooling circuits.
  • a mixing device 11 is provided in the present case, which connects each of the flow lines 29 and 32 and the return lines 30 and 33 of the two cooling circuits 1 and 10 with each other cooling medium.
  • Regulator 31 are provided in the lines to adjust the volume flow of the cooling medium flowing through the lines corresponding to the cooling load of the two cooling circuits 1 and 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP11010205A 2011-01-31 2011-12-24 Système de refroidissement pour un véhicule ferroviaire Withdrawn EP2481898A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110009911 DE102011009911A1 (de) 2011-01-31 2011-01-31 Kühlsystem für ein Schienenfahrzeug

Publications (1)

Publication Number Publication Date
EP2481898A1 true EP2481898A1 (fr) 2012-08-01

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EP (1) EP2481898A1 (fr)
DE (1) DE102011009911A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016139015A1 (fr) * 2015-03-02 2016-09-09 Siemens Aktiengesellschaft Véhicule ferroviaire comprenant un système de refroidissement de traction
CN113982735A (zh) * 2021-11-22 2022-01-28 中车青岛四方机车车辆股份有限公司 轨道车辆的动力包冷却系统及控制方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014205525A1 (de) * 2014-03-25 2015-10-01 Siemens Aktiengesellschaft Stromrichtereinheit mit einer Kühlvorrichtung
DE102014210444A1 (de) * 2014-06-03 2015-12-03 Siemens Aktiengesellschaft Elektrofahrzeug und Verfahren zum Bremsen eines Elektrofahrzeugs

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974907A (en) * 1933-01-23 1934-09-25 Daniel B Worth Engine cooling system
US2729203A (en) * 1952-12-27 1956-01-03 Gen Electric Coolant system
US3079509A (en) * 1960-06-24 1963-02-26 Sueddeutsche Kuehler Behr Diesel electric locomotive with brake resistances and associated ventilator cooling
US3439657A (en) * 1966-03-02 1969-04-22 Jean Louis Gratzmuller Cooling devices for supercharged internal combustion engines
US3863612A (en) * 1973-09-17 1975-02-04 Gen Electric Cooling system
GB1499673A (en) * 1975-07-30 1978-02-01 Marston Excelsior Ltd Liquid make-up tanks
US5291960A (en) * 1992-11-30 1994-03-08 Ford Motor Company Hybrid electric vehicle regenerative braking energy recovery system
US5415147A (en) * 1993-12-23 1995-05-16 General Electric Company Split temperature regulating system and method for turbo charged internal combustion engine
US5598705A (en) * 1995-05-12 1997-02-04 General Motors Corporation Turbocharged engine cooling apparatus
US5910099A (en) * 1997-02-28 1999-06-08 General Motors Corporation Turbocharged engine cooling system control with fuel economy optimization
US6006731A (en) * 1997-11-18 1999-12-28 General Motors Corporation Locomotive engine cooling system
US6098576A (en) * 1999-02-12 2000-08-08 General Electric Company Enhanced split cooling system
US20090078219A1 (en) * 2007-09-24 2009-03-26 Gregory Alan Marsh System and method for providing an integrated cooling system using an independent multi-control system
DE102008023175A1 (de) * 2008-05-10 2009-11-12 Schalker Eisenhütte Maschinenfabrik Gmbh Schienengeführtes Triebfahrzeug

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10317003A1 (de) * 2003-04-11 2004-12-09 Behr Gmbh & Co. Kg Kreislaufanordnung zur Kühlung von Ladeluft und Verfahren zum Betreiben einer derartigen Kreislaufanordnung
DE102008052044A1 (de) * 2008-10-16 2010-03-25 Voith Patent Gmbh Kühlanlage für ein Schienenfahrzeug, das von einem Verbrennungsmotor angetrieben ist

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974907A (en) * 1933-01-23 1934-09-25 Daniel B Worth Engine cooling system
US2729203A (en) * 1952-12-27 1956-01-03 Gen Electric Coolant system
US3079509A (en) * 1960-06-24 1963-02-26 Sueddeutsche Kuehler Behr Diesel electric locomotive with brake resistances and associated ventilator cooling
US3439657A (en) * 1966-03-02 1969-04-22 Jean Louis Gratzmuller Cooling devices for supercharged internal combustion engines
US3863612A (en) * 1973-09-17 1975-02-04 Gen Electric Cooling system
GB1499673A (en) * 1975-07-30 1978-02-01 Marston Excelsior Ltd Liquid make-up tanks
US5291960A (en) * 1992-11-30 1994-03-08 Ford Motor Company Hybrid electric vehicle regenerative braking energy recovery system
US5415147A (en) * 1993-12-23 1995-05-16 General Electric Company Split temperature regulating system and method for turbo charged internal combustion engine
US5598705A (en) * 1995-05-12 1997-02-04 General Motors Corporation Turbocharged engine cooling apparatus
US5910099A (en) * 1997-02-28 1999-06-08 General Motors Corporation Turbocharged engine cooling system control with fuel economy optimization
US6006731A (en) * 1997-11-18 1999-12-28 General Motors Corporation Locomotive engine cooling system
US6098576A (en) * 1999-02-12 2000-08-08 General Electric Company Enhanced split cooling system
US20090078219A1 (en) * 2007-09-24 2009-03-26 Gregory Alan Marsh System and method for providing an integrated cooling system using an independent multi-control system
DE102008023175A1 (de) * 2008-05-10 2009-11-12 Schalker Eisenhütte Maschinenfabrik Gmbh Schienengeführtes Triebfahrzeug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016139015A1 (fr) * 2015-03-02 2016-09-09 Siemens Aktiengesellschaft Véhicule ferroviaire comprenant un système de refroidissement de traction
RU184315U1 (ru) * 2015-03-02 2018-10-22 Сименс Акциенгезелльшафт Рельсовое транспортное средство с системой охлаждения тяговой установки
CN113982735A (zh) * 2021-11-22 2022-01-28 中车青岛四方机车车辆股份有限公司 轨道车辆的动力包冷却系统及控制方法

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