EP1050446B1 - Schutzvorrichtung gegen Druckwellen in Fahrzeugen zur Personenbeförderung - Google Patents

Schutzvorrichtung gegen Druckwellen in Fahrzeugen zur Personenbeförderung Download PDF

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Publication number
EP1050446B1
EP1050446B1 EP00410046A EP00410046A EP1050446B1 EP 1050446 B1 EP1050446 B1 EP 1050446B1 EP 00410046 A EP00410046 A EP 00410046A EP 00410046 A EP00410046 A EP 00410046A EP 1050446 B1 EP1050446 B1 EP 1050446B1
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EP
European Patent Office
Prior art keywords
air
duct
outlet
protection device
valves
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.)
Expired - Lifetime
Application number
EP00410046A
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English (en)
French (fr)
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EP1050446A1 (de
Inventor
Francois Galian
Christophe Carisey
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Soprano
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Soprano
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D27/00—Heating, cooling, ventilating, or air-conditioning
    • B61D27/0009—Means for controlling or equalizing air pressure shocks in trains, e.g. when passing or crossing in tunnels

Definitions

  • EP-A-0 579 536 and 0 143 931 describe devices known from suppression of sudden variations in pressure likely to be exerted on the external walls of a train.
  • means balancing between the external pressure and the internal pressure are formed by a special bypass, which is normally closed in the absence of pressure. As soon as the detector reveals the existence of a pressure wave, the suction and exhaust valves are closed and the bypass is open.
  • the detection means controlling the automaton can be formed by a detector internal and / or external, or a beacon at the entrance or exit of the tunnel.
  • the document EP 0 700 818 relates to a device for protection against overpressures, using in each vehicle a second set of shutters in bypass with fans of the steep front type for fresh air renewal.
  • a such an installation is expensive, has a large size and weight, and requires high energy consumption.
  • the object of the invention is to provide an effective protection device against pressure waves, requiring no ground control beacon, nor fan steep front, or pressure measurement inside the vehicles, and authorizing the entry and exit of tunnels and the renewal of air in cars when passing through tunnels.
  • the average static pressure sensor external is in connection with a pneumatic integrator and a pressure sensor differential, which delivers a proportional electronic measurement signal to the PLC.
  • the average static pressure sensor external is connected to an absolute pressure sensor connected to the input of the PLC, the pneumatic integration function being carried out by programming in the PLC processor.
  • the third valve is located in the condensate circuit evacuation pipe at the battery outlet air conditioner evaporator.
  • the static pressure sensor is installed at the head of train, and includes orifices arranged in the outside air flow, and in connection to a measurement area averaging the static pressures on the exposed surface of said sensor.
  • a ventilation and air conditioning system 10 for ground transportation vehicles including a high speed train, is equipped a pressure wave protection device 12. It comprises at the level of each vehicle, an inlet port 14 for the outside air, and an outlet port 16 indoor air.
  • the inlet 14 is connected to a suction duct 18 which directs the fresh air drawn into the internal ventilation and air conditioning system 10.
  • the outlet orifice 16 is connected to an exhaust duct 20 rejecting the interior air by extraction to the outside.
  • the outside fresh air intake is controlled by a first valve 22 shutter housed in the suction duct 18, while the air evacuation interior is controlled by a second shutter valve 24 formed in the exhaust duct 20.
  • the pressure wave protection device 12 includes means 26 for detecting the variation in external pressure of the vehicle, and a control and command automaton 28 which receives and processes the measurement signals in origin of the detection means 26 for controlling a series of actuators 30, 32, 34 intended to operate respectively the first valve 22 of the duct suction, the second valve 24 of the exhaust duct 20, and a third valve 36 of the air conditioning condenser circuit.
  • FIG. 2 shows schematically the air conditioner 38 housed in a box 40 containing a unit fan 42 which draws air through a filter 44 and a battery evaporator 46.
  • the air conditioning is blown according to arrow F1 in a duct 48 of car, and the water in the condensing circuit at the outlet of the evaporator battery 46 is evacuated through an evacuation duct 50 in which the third valve 36.
  • An additional return air flow towards the filter 44 is represented by arrow F2.
  • the section of the third valve 36 in the condensate evacuation pipe 50 to the output of the evaporator battery 46 is less than that of the first or second valves 22, 24 of the air suction and exhaust ducts.
  • the detection means 26 comprise a pressure sensor 52 medium static, which is preferably installed at the head of the train at a point where the static pressure is close to atmospheric pressure when the train is running in free field.
  • the external pressure sensor 52 has several ports arranged in the outside air flow so as to measure a pressure static, and in conjunction with a measurement area to obtain the average pressures on the exposed surface of the sensor 52. The use of such a sensor reduces the aerodynamic noise caused by the speed of the train.
  • the pressure sensor 52 transmits the average static pressure to a differential pressure 54 and a pneumatic integrator 56.
  • the pressure signal of the pneumatic integrator 56 is also sent to the differential pressure 54, which delivers a measurement signal S1 to the output proportional electronics to the control unit 28.
  • the pneumatic integrator 56 allows variations in the atmospheric pressure inside a tunnel, because it is sensitive to variations altitude.
  • PLC 28 When detecting a strong pressure wave causing the temperature to exceed measurement signal S1 beyond a first level of pressure variation, PLC 28 sends closing control orders to the three valves shutter 22, 24 and 36. The three conduits 18, 20 and 50 are then blocked simultaneously so as to isolate the interior of the vehicle from the exterior.
  • the actuators 30, 32, 34 can be pneumatically, hydraulically or electric.
  • the first level of pressure variation can be a high threshold or low depending on whether the pressure wave is positive or negative.
  • the controller 28 When the measurement signal S1 drops below a second level of pressure variation, the controller 28 first issues an opening order at the actuator 34 of the third valve 36 of the condenser circuit of the air conditioner 38.
  • the prior reopening of the third valve 36 allows progressive balancing pressures inside and outside the vehicle while the other two valves 22, 24 of larger sections, remain closed. After a time delay, the other two valves 22, 24 are reopened by the actuators 30, 32 for air intake and exhaust, and the ventilation and air conditioning 10 is returned to normal operation.
  • the pressure wave protection device 12 does not require either ground control beacons, neither steep front bypass fans, nor pressure measurement inside the vehicle. Only one detection device is plan outside each end of the train to detect waves annoying pressure at the entrances and exits of tunnels, and at the crossings of trains. As a function of the amplitude of the measurement signal S1 representative of the variation in external pressure, all of the valves 22, 24, 36 can open and close several times during a tunnel crossing.
  • the detection means 26 are formed by a pressure sensor absolute 58 controlled by the medium pressure sensor 52.
  • the pressure sensor differential 54 is deleted, and the pneumatic integration function is performed by programming in the control command 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Measuring Fluid Pressure (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Buffer Packaging (AREA)

Claims (5)

  1. Vorrichtung zum Schutz gegen Druckwellen, die auf ein klimatisiertes Transportfahrzeug ausgeübt werden, das sich mit großer Geschwindigkeit bewegt, und die umfasst:
    eine Einlassöffnung (14) für die Außenluft und eine Austrittsöffnung (16) für die Innenluft, wobei die Einlassöffnung (14) an eine Ansaugleitung (18) angeschlossen ist, welche die angesaugte Luft zur Klimatisierungs- und Lüftungsanlage (10) hin leitet, und die Austrittsöffnung (16) mit einer Ausströmleitung (20) verbunden ist, welche die Innenluft durch Abzug nach außen ausstößt,
    eine erste Absperrklappe (22) für die Ansaugleitung (18),
    eine zweite Absperrklappe (24) für die Ausströmleitung (20),
    Vorrichtungen zur Erfassung (26) der Außendruckschwankung des Fahrzeugs, die Messsignale ausgeben, die dieser Schwankung entsprechen,
    eine Leitung zum Ausgleich von Außen- und Innendruck, die mit einer dritten Klappe (36) versehen ist,
    sowie einen Steuerungs-Automaten (28), der die Messsignale von den Erfassungsvorrichtungen empfängt, um die Schließung der ersten und zweiten Klappe (22, 24) nach Überschreiten einer vorbestimmten Höhe der Schwankung des Außendrucks, das erneute Öffnen der Klappen, wenn die Druckschwankung unter eine zweite vorbestimmte Höhe gesunken ist, sowie das Öffnen oder Schließen der dritten Klappe (36) zu steuern, dadurch gekennzeichnet, dass:
    die Erfassungsvorichtungen einen Messfühler (52) für den statischen Mitteldruck umfassen, der unempfindlich für aerodynamische Geräusche des Fahrzeugs ist, und mit pneumatischen, integrativen Mitteln zur Erzeugung der Messsignale zusammenwirken,
    der Automat (28) die dritte Klappe (36) steuert, die in einer Leitung der Klimaanlage (38) angeordnet ist, die nach außerhalb des Fahrzeugs und vor einem Bereich mündet, der unter dem der Ansaugleitung (18) und der Ausströmleitung (20) liegt, um sie gleichzeitig mit der ersten und zweiten Klappe (22, 24) zu schließen und sie vorher zum allmählichen Druckausgleich zwischen dem Inneren und Äußeren des Fahrzeugs wieder zu öffnen, während die erste und zweite Klappe (22, 24) geschlossen bleiben,
    erneute Öffnung der ersten und zweiten Klappe (22, 24) für den Einlass und das Entweichen der Luft nach einer vorbestimmten Verzögerungszeit.
  2. Schutzvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Messfühler (52) für den statischen, mittleren Außendruck mit einem pneumatischen Integrator (56) und einem Differenzialdruckmessfühler (54) verbunden ist, der ein proportionales elektronisches Messsignal (51) an den Automaten (28) schickt.
  3. Schutzvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Messfühler (52) für den statischen, mittleren Außendruck mit einem Messfühler (56) für den absoluten Druck verbunden ist, der an den Eingang des Automaten (28) gelegt ist, wobei die Funktion der pneumatischen Integration durch Einprogrammierung in den Prozessor des Automaten (28) hergestellt wird.
  4. Schutzvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die dritte Klappe (36) in der Auslassleitung (50) für die Kondensate am Ausgang der Verdampferbatterie (46) der Klimaanlage (38) angeordnet ist.
  5. Schutzvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Messfühler (52) für den statischen Druck an der Spitze des Zuges installiert ist und Öffnungen aufweist, die in der abströmenden Außenluft angeordnet und in Verbindung stehen mit einem Messbereich, der den Durchschnitt der statischen Drücke an der exponierten Oberfläche des Messfühlers herstellt.
EP00410046A 1999-05-06 2000-05-05 Schutzvorrichtung gegen Druckwellen in Fahrzeugen zur Personenbeförderung Expired - Lifetime EP1050446B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9905948A FR2793205B1 (fr) 1999-05-06 1999-05-06 Dispositif de protection contre les ondes de pression dans les vehicules de transport de personnes
FR9905948 1999-05-06

Publications (2)

Publication Number Publication Date
EP1050446A1 EP1050446A1 (de) 2000-11-08
EP1050446B1 true EP1050446B1 (de) 2004-04-07

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EP00410046A Expired - Lifetime EP1050446B1 (de) 1999-05-06 2000-05-05 Schutzvorrichtung gegen Druckwellen in Fahrzeugen zur Personenbeförderung

Country Status (4)

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EP (1) EP1050446B1 (de)
AT (1) ATE263694T1 (de)
DE (1) DE60009597T2 (de)
FR (1) FR2793205B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103963795A (zh) * 2013-08-29 2014-08-06 南车南京浦镇车辆有限公司 快速地铁车辆压力波控制方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170232978A1 (en) * 2007-04-18 2017-08-17 Thyssenkrupp Transrapid Gmbh Method and device for preventing fast changes of the internal pressure in an enclosed space
CN102607797A (zh) * 2012-03-15 2012-07-25 长春轨道客车股份有限公司 一种动车组空调压力波功能检测方法
DE102014209549A1 (de) * 2014-05-20 2015-11-26 Siemens Aktiengesellschaft Fahrzeug mit Belüftungssystem
DE202014104358U1 (de) * 2014-09-15 2014-12-12 Faiveley Transport Leipzig Gmbh & Co. Kg Vorrichtung für eine kombinierte Druckschutz- und Luftmengenregelung im Innenraum von Schienenfahrzeugen
CN106564513B (zh) * 2016-11-11 2018-11-27 中车青岛四方机车车辆股份有限公司 一种轨道车辆压力波控制装置和控制方法
CN108407835B (zh) * 2018-07-12 2018-10-16 新誉轨道交通科技有限公司 智能压力波保护系统及方法
CN109552350A (zh) * 2019-01-23 2019-04-02 中车株洲电力机车有限公司 一种防止长隧道列车客室压力突变的控制方法及系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343487A1 (de) 1983-12-01 1985-06-13 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Einrichtung zur belueftung und klimatisierung von fahrgastraeumen in schienenfahrzeugen
FR2693698B1 (fr) 1992-07-16 1994-08-19 Alsthom Gec Dispositif de suppression des variations brutales de pression dans les véhicules, en particulier dans les véhicules terrestres.
DE4314262A1 (de) * 1993-04-30 1994-11-03 Krapf & Lex Vorrichtung zur Druckbegrenzung in schnell fahrenden Schienenfahrzeugen
DE4432277A1 (de) 1994-09-09 1996-03-14 Hagenuk Fahrzeugklima Gmbh Druckschutzsystem
FR2769873B1 (fr) * 1997-10-16 2000-01-14 Alsthom Cge Alcatel Dispositif pour retablir la pression dans l'habitacle d'un vehicule suite a une depression

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103963795A (zh) * 2013-08-29 2014-08-06 南车南京浦镇车辆有限公司 快速地铁车辆压力波控制方法
CN103963795B (zh) * 2013-08-29 2016-06-29 南车南京浦镇车辆有限公司 快速地铁车辆压力波控制方法

Also Published As

Publication number Publication date
ATE263694T1 (de) 2004-04-15
FR2793205A1 (fr) 2000-11-10
FR2793205B1 (fr) 2001-08-10
EP1050446A1 (de) 2000-11-08
DE60009597D1 (de) 2004-05-13
DE60009597T2 (de) 2005-03-17

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