EP4084875A1 - Véhicule ferroviaire de lutte anti-incendie - Google Patents

Véhicule ferroviaire de lutte anti-incendie

Info

Publication number
EP4084875A1
EP4084875A1 EP20838357.0A EP20838357A EP4084875A1 EP 4084875 A1 EP4084875 A1 EP 4084875A1 EP 20838357 A EP20838357 A EP 20838357A EP 4084875 A1 EP4084875 A1 EP 4084875A1
Authority
EP
European Patent Office
Prior art keywords
rail vehicle
cooling circuit
cooling
traction system
liquid tank
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.)
Pending
Application number
EP20838357.0A
Other languages
German (de)
English (en)
Inventor
Stefan KRENN
Andreas Hofer
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.)
Plasser und Theurer Export Von Bahnbaumaschinen GmbH
Original Assignee
Plasser und Theurer Export Von Bahnbaumaschinen 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 Plasser und Theurer Export Von Bahnbaumaschinen GmbH filed Critical Plasser und Theurer Export Von Bahnbaumaschinen GmbH
Publication of EP4084875A1 publication Critical patent/EP4084875A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C27/00—Fire-fighting land vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C5/00—Locomotives or motor railcars with IC engines or gas turbines
    • 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
    • B61C17/02—Bunkers; Tanks; Tenders; Water or fuel pick-up or scoop apparatus; Water or fuel supply fittings
    • 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
    • B61C17/08—Lubrication systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles

Definitions

  • the invention relates to a rail vehicle for fighting fires with a traction system and a liquid tank for storing an extinguishing agent.
  • the invention also relates to a method for operating the rail vehicle.
  • This rail vehicle is intended in particular for fire fighting and rescuing people in a tunnel.
  • the rail vehicle includes a liquid tank for storing an extinguishing agent that is used to fight the fire.
  • the rail vehicle can be moved on a track by means of a traction system.
  • the invention is based on the object of improving a rail vehicle of the type mentioned at the outset in such a way that safe operation is possible over a longer period of use at high ambient temperatures.
  • Another object of the invention is to specify a corresponding method for operating the rail vehicle.
  • A is used to cool components of the traction system
  • the cooling circuit comprises a heat exchanger for dissipating heat to the extinguishing agent.
  • the extinguishing agent thus fulfills an additional function as a thermal mass for cooling the Traction system.
  • high ambient temperatures occur during fire fighting.
  • a heat transfer to the environment is then only possible to a limited extent.
  • the extinguishing agent that has not yet been used absorbs the thermal energy generated by the traction system.
  • the cooling effect is favored by a large thermal mass and a relatively good specific heat capacity of the extinguishing agent. In this way, failure of temperature-sensitive components of the traction system is reliably avoided. Even if the supply of extinguishing agent is reduced or has been warmed up, the invention significantly extends the possible service life.
  • the heat exchanger is arranged at least partially inside the liquid tank.
  • the extinguishing agent thus remains in the tank and does not have to be routed to a heat exchanger arranged outside.
  • the heat exchanger comprises pipelines which are arranged in particular in a bead in the liquid tank.
  • a cooling medium of the cooling circuit flows through the pipes.
  • the temperature of the cooling medium is higher than the temperature of the extinguishing agent, so that thermal energy is transferred to the extinguishing agent.
  • the energy exchange is optimized by suitable dimensioning and material selection of the pipelines.
  • Extinguishing agent in the bead in which the pipelines are arranged In this case, a thermally effective residual mass of the extinguishing agent is permanently available. The cooling is then maintained even when the amount of extinguishing agent intended for extinguishing has been used up.
  • the traction system comprises an electric motor and power electronics, the power electronics being equipped with cooling elements of the cooling circuit.
  • the power electronics being equipped with cooling elements of the cooling circuit.
  • traction converters and, if necessary, auxiliary converters are cooled.
  • the traction system comprises an electrical storage device and that the electrical storage device is equipped with cooling elements of the cooling circuit. Thermally sensitive electrical storage devices such as lithium-ion batteries can thus be operated safely. This means that the rail vehicle can be moved purely electrically even when there is no energy supply from an overhead line.
  • the cooling circuit makes sense to include an air cooler. In this way, if air cooling is possible, the extinguishing agent is not heated.
  • the air cooler is integrated into the cooling circuit via switchable valves.
  • the valves are automatically actuated by means of a control device as a function of an ambient temperature.
  • a further development of this aspect of the invention provides that the cars are coupled by means of a coupling device that includes connecting lines of the cooling circuit.
  • the lines of the cooling circuit are then connected together with the connection of various supply and control lines.
  • the heat exchanger is activated in the cooling circuit by means of a control device from a predetermined temperature threshold.
  • the activation is advantageously carried out by an automatic control of directional control valves arranged in the cooling circuit. This ensures that temperature-sensitive components of the traction system remain below a permissible temperature.
  • Fig. 1 rail vehicle in a side view
  • Fig. 2 rail vehicle with several cars
  • the rail vehicle 1 shown in FIG. 1 comprises a liquid tank 2 which is supported on a vehicle frame 3.
  • the vehicle frame 3 can be moved on rail bogies 4 by means of a traction system 5 on a track 6.
  • a driver's cab 7 with a driver's cab is arranged on each of the front sides of the rail vehicle 1.
  • the traction system 5 comprises a cooling circuit with a cooling medium for cooling temperature-sensitive components.
  • a cooling medium for cooling temperature-sensitive components.
  • electronic components of an engine control or other control devices must be protected from thermal failure. If necessary, the engine block is also cooled by means of the cooling circuit.
  • the rail vehicle 1 is preferably electrically driven.
  • a current collector 8 is arranged on the roof of the rail vehicle 1. This supplies an electric motor 9 via a transformer unit 10 and power electronics 11 from an overhead line 12 with electrical energy.
  • the power electronics 11 include, for example, a traction converter 13 and various additional devices 14 such as an auxiliary converter.
  • the rail vehicle 1 carries a large amount of extinguishing agent 16 in the liquid tank 2. This is preferably water.
  • extinguishing devices 17 are arranged for discharging the extinguishing agent 16. If necessary, the water stored in the liquid tank 2 is mixed with a separately carried extinguishing additive before it is discharged.
  • the cooling circuit comprises a heat exchanger 18 which is designed to give off heat to the extinguishing agent 16.
  • the extinguishing agent 16 is passed to the heat exchanger 18 via pipes or hoses.
  • the heat transferred from the cooling medium of the cooling circuit to the extinguishing agent 16 in the tank 2 is dependent on the effective heat transfer area, the mean temperature difference and the heat transfer coefficient of the pipelines 19.
  • the rail vehicle 1 shown in FIG. 2 comprises three carriages 20, 21, 22 coupled to one another.
  • a first carriage 20 is designed as a tank truck and comprises the liquid tank 2.
  • a second car 21 coupled to it is designed as a motor car. This includes the pantograph 8, which supplies the traction system 5 via the transformer unit 10.
  • the tank truck 20 is coupled to a third car 22, which is designed as a further railcar.
  • the current collector 8 supplies additional drive units of the traction system 5 via a further transformer unit 10 via a vehicle's own power line 23.
  • the circuit is closed via grounding modules 24.
  • the tank truck 20 is optionally also equipped with its own drive so that it can be moved automatically in the uncoupled state or in order to achieve greater traction for the rail vehicle 1.
  • the two railcars 21, 22 are equipped with two two-axle bogies.
  • the tank truck 20 preferably comprises two three-axle bogies in order to enable a large-volume liquid tank with a limited axle load (for example 50,000 liters storage capacity). At least 5,000 liters will be of the extinguishing agent 16 in order to ensure the inventive cooling of the components of the traction system 5 during an extinguishing operation.
  • Fig. 3 the traction system 5 with two cooling circuits of the three-part rail vehicle 1 is shown schematically. In a simplified form, this scheme also applies to the rail vehicle 1 in FIG. 1, only one cooling circuit being provided there.
  • the liquid tank 2 with the extinguishing agent 16 is shown in the middle.
  • a heat exchanger 18 is arranged therein for each railcar 21, 22.
  • Each heat exchanger 18 is an element of its own cooling circuit.
  • the respective cooling circuit comprises a circulating pump 25, switchable directional control valves 26 and cooling elements 27 for cooling temperature-sensitive components.
  • the cooling circuit comprises connecting pipes or connecting hoses. By means of the respective circulating pumps 25, a cooling medium, for example water mixed with antifreeze, circulates through the associated cooling circuit.
  • the directional control valves 26 can be controlled by means of a control device 28.
  • An air cooler 29, which is preferably arranged on the roof of the respective railcar 21, 22, can be switched on in each cooling circuit.
  • the respective air cooler 29 is used during transfer trips and during work assignments with a low ambient temperature in order to give off heat to the environment. In this operating mode, with an optimized design of the respective air cooler 29, no additional heat is given off to the extinguishing agent 16. Inlet and outlet lines of the respective heat exchanger 18 then remain blocked by the corresponding switching position of the directional control valves 26.
  • each railcar 21, 22 comprises two drive units, each with an electric motor 9 and associated power electronics 11.
  • the electrical storage device 15 is arranged in one of the cars 21, 22. In this way, the rail vehicle 1 can continue to be operated electrically when there is no energy from the overhead line 12.
  • the cooling elements 27 of the associated Arranged cooling circuit For example, a cooling element through which the cooling medium flows is provided as the cooling element 27.
  • the respective heat sink In order to absorb heat, the respective heat sink is in thermal contact with a temperature-sensitive electrical component of the power electronics 11. This efficient cooling ensures a long service life for the components.
  • a motor-generator unit is arranged in the other railcar 23 .
  • an emergency supply of the rail vehicle 1 with electrical energy takes place via a generator 31 driven by means of a diesel engine 30.
  • the motor-generator unit is preferably also equipped with a cooling element 27 of the associated cooling circuit.
  • the three carriages 20, 21, 22 are coupled by means of coupling devices 32.
  • the power line 23 and the lines of the cooling circuits are connected to these coupling devices 32.
  • Connections for bus lines for the transmission of control signals between the control device 28 and the directional control valves 26 are also advantageously provided.
  • the operating temperature of the rail vehicle 1 reaches 60 ° Celsius in the event of a fire in a tunnel.
  • a maximum temperature of 55 ° Celsius for the cooling medium circulating in the cooling circuit is specified for cooling the power electronics 11, for example.
  • the current temperature of the cooling medium is continuously reported to the control device 28 via temperature sensors 33.
  • an outside sensor 34 reports the ambient temperature.
  • the cooling takes place via the air coolers 29, the heat exchangers 18 or by a combined operation of the two cooling devices 18, 29.
  • the extinguishing agent 16 is consumed, so that the thermal mass in the liquid tank 2 decreases. In order to maintain the cooling function for as long as possible, it makes sense to form a bead 35 in the liquid tank 2, in which the remainder of the extinguishing agent 16 collects.
  • An outlet 36 for conveying the extinguishing agent 16 to the extinguishing devices 17 is arranged above the bead 35.
  • the pipes 19 of the heat exchangers 18 are arranged in the bead 35, so that the residual thermal mass of the extinguishing agent 16 can continue to absorb heat from the cooling circuits. In this way, a particularly long period of use of the rail vehicle 1 at a high ambient temperature is possible without risking thermal failure of individual components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un véhicule ferroviaire (1) de lutte anti-incendie comprenant un système de traction (5) et un réservoir de liquide (2) pour le stockage d'un agent extincteur (16). Selon l'invention, un circuit de refroidissement est destiné à refroidir des composants (11, 15, 30) du système de traction (5) et ledit circuit de refroidissement comprend un échangeur de chaleur (18) destiné à dissiper la chaleur vers l'agent extincteur (16). Ainsi, le véhicule ferroviaire (1) reste en ordre de marche même après une période prolongée de lutte anti-incendie. L'agent extincteur (16) qui n'est pas encore consommé absorbe l'énergie thermique générée par le système de traction (5).
EP20838357.0A 2019-12-30 2020-12-09 Véhicule ferroviaire de lutte anti-incendie Pending EP4084875A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA411/2019A AT523077B1 (de) 2019-12-30 2019-12-30 Schienenfahrzeug zur Brandbekämpfung
PCT/EP2020/085263 WO2021136638A1 (fr) 2019-12-30 2020-12-09 Véhicule ferroviaire de lutte anti-incendie

Publications (1)

Publication Number Publication Date
EP4084875A1 true EP4084875A1 (fr) 2022-11-09

Family

ID=74141435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20838357.0A Pending EP4084875A1 (fr) 2019-12-30 2020-12-09 Véhicule ferroviaire de lutte anti-incendie

Country Status (3)

Country Link
EP (1) EP4084875A1 (fr)
AT (1) AT523077B1 (fr)
WO (1) WO2021136638A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2838441C (fr) * 2013-01-09 2020-07-14 Frank Wegner Donnelly Wagons destines au transport d'hydrocarbures lourds
AT15896U1 (de) 2017-01-27 2018-08-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Gleisverfahrbares Arbeits- bzw. Rettungsfahrzeug
AT519672B1 (de) * 2017-05-18 2018-09-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Schienenfahrzeug

Also Published As

Publication number Publication date
AT523077B1 (de) 2021-05-15
AT523077A4 (de) 2021-05-15
WO2021136638A1 (fr) 2021-07-08

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