WO2014182226A1 - Système de dégivrage de train - Google Patents

Système de dégivrage de train Download PDF

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Publication number
WO2014182226A1
WO2014182226A1 PCT/SE2014/050550 SE2014050550W WO2014182226A1 WO 2014182226 A1 WO2014182226 A1 WO 2014182226A1 SE 2014050550 W SE2014050550 W SE 2014050550W WO 2014182226 A1 WO2014182226 A1 WO 2014182226A1
Authority
WO
WIPO (PCT)
Prior art keywords
icing liquid
icing
spent
tank
preparation vessel
Prior art date
Application number
PCT/SE2014/050550
Other languages
English (en)
Inventor
Anders Larsson
Original Assignee
Nordic Ground Support Equipment Ip Ab
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 Nordic Ground Support Equipment Ip Ab filed Critical Nordic Ground Support Equipment Ip Ab
Priority to CN201490000647.8U priority Critical patent/CN205327022U/zh
Priority to EP14795281.6A priority patent/EP2994354A4/fr
Publication of WO2014182226A1 publication Critical patent/WO2014182226A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S3/00—Vehicle cleaning apparatus not integral with vehicles
    • B60S3/006—Vehicle cleaning apparatus not integral with vehicles specially adapted for railway vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K13/00—Other auxiliaries or accessories for railways

Definitions

  • the present invention relates to a train anti-icing system comprising a spray nozzle arrangement for spraying anti-icing liquid onto a vehicle on tracks and a collection tray for collecting spent anti-icing liquid falling from the vehicle.
  • WO 2013/043090 discloses a train anti- icing system for reducing the icing of a vehicle on tracks.
  • a train anti-icing system comprising a spray nozzle arrangement for spraying serviceable anti-icing liquid at a treatment temperature onto a vehicle on tracks; a collection tray for collecting spent anti-icing liquid falling from the vehicle; a preparation vessel for preparing serviceable anti-icing liquid to be sprayed onto the vehicle; a spent anti-icing liquid tank for receiving and storing spent anti-icing liquid collected by the collection tray; an ingredient tank for storing anti-icing liquid concentrate; a spent anti-icing liquid supply line for supplying spent anti-icing liquid from the spent anti-icing liquid tank to the preparation vessel; and an ingredient supply line for supplying anti-icing liquid concentrate from the ingredient tank to the preparation vessel.
  • the treatment temperature is between about 10°C and 50°C.
  • the train anti-icing system further comprises a heater configured to heat the serviceable anti-icing liquid of the preparation vessel to the treatment temperature. Heating may be performed inside or outside the preparation vessel, and the serviceable anti-icing liquid may be maintained at an elevated temperature inside the preparation vessel.
  • the train anti-icing system further comprises a heater configured to heat the spent anti-icing liquid of the spent anti-icing liquid tank to a temperature lower than the treatment temperature.
  • a heater configured to heat the spent anti-icing liquid of the spent anti-icing liquid tank to a temperature lower than the treatment temperature.
  • said lower temperature is between -10°C and 0°C.
  • said lower temperature is a freeze-preventing temperature. More preferred, said lower temperature is less than 10°C above the freezing point of the spent anti-icing liquid. Heating may be performed inside or outside the spent anti- icing liquid tank.
  • the preparation vessel is smaller than the spent anti-icing liquid tank.
  • the train anti-icing system is configured to store the anti-icing liquid concentrate in the ingredient tank at a
  • the preparation vessel is smaller than the ingredient tank. Again, by maintaining a large portion of the liquid stored in the system at a temperature below the treatment temperature, energy is saved.
  • the train anti-icing system further comprises a controller configured to, if the amount of serviceable anti-icing liquid in the preparation vessel falls below a threshold value, initiate a transfer of a first selected volume of spent anti-icing liquid from the spent anti-icing liquid tank to the preparation vessel; and initiate a transfer of a second selected volume of anti-icing liquid concentrate from the ingredient tank to the preparation vessel. Thereby, the amount and concentration of serviceable anti-icing liquid in the preparation vessel may be maintained within selected boundaries at all times.
  • the train anti-icing system further comprises a glycol concentration sensor configured for sensing the
  • glycol concentration sensor may be used for determining suitable amounts of liquid to be added to the preparation vessel from the spent anti-icing liquid tank and the ingredient tank,
  • the glycol concentration sensor is located outside the spent anti-icing liquid tank, and the train anti-icing system further comprises a spent anti-icing liquid sampling line for transferring a sample of spent anti-icing liquid from the spent anti-icing liquid tank to the glycol concentration sensor; and a serviceable anti-icing liquid sampling line for transferring a sample of serviceable anti-icing liquid from the preparation vessel to the glycol concentration sensor.
  • a spent anti-icing liquid sampling line for transferring a sample of spent anti-icing liquid from the spent anti-icing liquid tank to the glycol concentration sensor
  • a serviceable anti-icing liquid sampling line for transferring a sample of serviceable anti-icing liquid from the preparation vessel to the glycol concentration sensor.
  • the anti-icing system may also comprise an anti-icing liquid concentrate sampling line for transferring a sample of anti-icing liquid concentrate from the ingredient tank to the glycol concentration sensor. Thereby, the quality of the anti-icing liquid concentrate may be verified.
  • a method of anti- icing a vehicle on tracks comprising collecting spent anti-icing liquid and storing it in a spent anti-icing liquid tank; preparing serviceable anti- icing liquid by transferring collected, spent anti-icing liquid from the spent anti- icing liquid tank to a preparation vessel and transferring anti-icing liquid concentrate from an ingredient tank to the preparation vessel; and spraying serviceable anti-icing liquid at a treatment temperature onto the vehicle.
  • the treatment temperature is between about 10°C and 50°C.
  • the serviceable anti-icing liquid inside the preparation vessel is maintained at the treatment temperature, and the spent anti-icing liquid inside the spent anti-icing liquid tank is maintained at a temperature below the treatment temperature.
  • the method further comprises
  • the method further comprises
  • determining the amount of serviceable anti-icing liquid in the preparation vessel based on said determination, initiating a transfer of a first selected volume of spent anti-icing liquid from the spent anti-icing liquid tank to the preparation vessel and initiating a transfer of a second selected volume of anti-icing liquid concentrate from the ingredient tank to the preparation vessel.
  • said first and second selected volumes are selected based on the concentration of glycol of the spent anti-icing liquid in the spent anti-icing liquid tank.
  • the method further comprises
  • Fig. 1 is a diagrammatic view in perspective of an train anti-icing system
  • Fig. 2 is a diagrammatic view of a re-circulation plant of the train anti- icing system of Fig. 1.
  • Fig. 1 schematically illustrates a train anti-icing system 10 for reducing the build-up of ice on trains.
  • the anti-icing system 10 may be used for de- icing as well as for anti-icing a train, i.e. leaving an ice-repellent coating of anti-icing liquid on the surface of the train during or after de-icing, or without prior de-icing.
  • the system 10 is configured as a drive-through system, i.e. a train 12, arriving on tracks 14 from the upper left corner of Fig. 1 , passes through the system 10 without having to stop during the de-/anti-icing process.
  • the anti-icing system 10 comprises a spray nozzle arrangement 16 for spraying an anti-icing liquid onto the train 12, and a collection tray
  • the system 10 may also be provided with a sensor (not shown) for
  • spraying may be focussed onto the train portions most sensitive to icing, such as wheel units.
  • a serviceable anti-icing liquid would be a liquid having a freezing point sufficiently below the freezing point of water, such that any anti- icing liquid residues remaining on the train after de-icing will remain in liquid or slush form when the train 12 is again exposed to cold climate. Thereby, anti-icing liquid residues remaining on the surface of the train 12 will prevent snow and ice from attaching to the train 12. Even though not necessary, the anti-icing liquid may optionally be heated when sprayed to the train 12, so as to increase the de-icing efficiency of the liquid when sprayed onto the train 12. Ethylene glycol, propylene glycol, other alcohols, salt, and sugar are the most common anti-icing liquid ingredients in the art, and may be used for preparing serviceable anti-icing liquid, e.g. by mixing with water.
  • the spent anti-icing liquid may comprise a slush of anti-icing liquid, rain, dirt, ice, and melted ice in the form of water.
  • the collection tray arrangement 18 extends along a relatively short spray zone 20, at which the spray nozzle arrangement 16 is located, and a somewhat longer collection zone 22, along which no substantive spraying of anti-icing liquid occurs.
  • the collection tray arrangement 18 comprises three collection trays 18a, 18b, 18c extending along the rails 14. Two collection trays 18a, 18b extend along the sides of the tracks 14, while a third collection tray 18c extends between the tracks 14.
  • a drain arrangement 26 comprises a set of drains 26a-c located at the bottoms of the respective collection trays 18a-c.
  • the drain arrangement 26 allows spent anti-icing liquid to be collected from the collection tray arrangement 18 and transferred to a re-circulation plant 28, which may be located within a housing formed by e.g. a cargo container 30. Thereby, the anti-icing system 10 may be prepared or assembled at a central site, and quickly transported to and installed at a de-icing site when needed.
  • the spray nozzle arrangement 16 comprises a plurality of spray nozzles 36.
  • a valve arrangement 38 comprising a plurality of valves (not illustrated), is operated by a controller 40.
  • the controller 40 controls, via the valve arrangement 38, the flow of anti-icing liquid to different portions of the spray nozzle arrangement 16 in such a manner that different spray patterns may be selectively obtained.
  • spent anti-icing liquid is pumped from the drain arrangement 26, via a filter 42 for removing solid dirt particles, to a spent anti-icing liquid tank 44 for storing spent anti-icing liquid.
  • the spent anti-icing liquid tank 44 is provided with a spent anti-icing liquid temperature sensor 46, for sensing the temperature of the spent anti-icing liquid in the tank 44, and a spent anti-icing liquid tank level sensor 48, for sensing the amount of spent anti-icing liquid in the tank 44. Temperature and level signals from the sensors 46, 48 are transmitted to the controller 40.
  • the controller 40 also controls a spent anti- icing liquid heater 50, which is located outside the spent anti-icing liquid tank 44. Based on the temperature of the spent anti-icing liquid in the spent anti- icing liquid tank 44, spent anti-icing liquid is pumped from the tank 44 to the heater 50, heated by the heater 50, and then returned to the tank 44.
  • the temperature of the spent anti-icing liquid in the spent anti-icing liquid tank 44 may be kept at a freeze-preventing temperature, i.e. above the freezing point of the spent anti-icing liquid, even if the ambient temperature outside the tank 44 falls below the freezing point.
  • a spent anti-icing liquid comprising about 75% - 85% water and 15% - 25% propylene glycol has a typical freezing point of between about -5°C and -10°C; for such a spent anti-icing liquid, the controller 40 may be configured to operate the heater 50 when the temperature falls below a lower spent anti-icing liquid limit temperature, which may be between about -10°C and 0°C.
  • a discharge line 52 allows emptying the spent anti-icing liquid tank 44.
  • a heater may be located in the tank 44.
  • the re-circulation plant 28 further comprises an ingredient tank 54 for storing anti-icing liquid concentrate, such as concentrated propylene glycol or highly concentrated salt brine.
  • the ingredient tank 54 is provided with an anti- icing liquid concentrate temperature sensor 56, for sensing the temperature of the anti-icing liquid concentrate in the tank 54, and an ingredient tank level sensor 58, for sensing the amount of anti-icing liquid concentrate in the ingredient tank 54. Again, temperature and level signals from the sensors 56, 58 are transmitted to the controller 40.
  • a refilling line 60 allows topping up the ingredient tank 54 with anti-icing liquid concentrate.
  • a preparation vessel 62 allows for preparing serviceable anti-icing liquid to be sprayed onto the train 12.
  • the preparation vessel 62 is connected to the ingredient tank 54 via an ingredient supply line 64, which allows pumping anti-icing liquid concentrate from the ingredient tank 54 to the preparation vessel 62.
  • the preparation vessel 62 is also connected to the spent anti-icing liquid tank 44 via a spent anti-icing liquid supply line 66, which allows pumping spent anti-icing liquid from the spent anti-icing liquid tank 44 to the preparation vessel 62.
  • the preparation vessel 62 is provided with a serviceable anti-icing liquid temperature sensor 68, for sensing the
  • serviceable anti-icing liquid in the preparation vessel 62 reaches a lower limit, serviceable anti-icing liquid is prepared in the preparation vessel 62 by pumping selected amounts of liquid to the
  • preparation vessel 62 from the ingredient tank 54 and the spent anti-icing liquid tank 44, respectively.
  • the respective amounts of anti-icing liquid concentrate and spent anti-icing liquid are selected by the controller 40 such that the resulting mixture in the preparation vessel 62 will hold the desired anti-icing ingredient concentration to form a serviceable anti-icing liquid.
  • anti-icing liquid may be regenerated in a non-evaporative manner.
  • the amounts transferred from the respective tanks 44, 54 may be calculated by the controller 40 based on the signals from the respective level sensors 48, 58.
  • Non-evaporative regeneration may be particularly beneficial in anti- icing systems 10 configured to focus spraying on selected portions along a train 12 which are particularly prone to icing, such as wheel units. This is due to such selective anti-icing systems consuming particularly small amounts of serviceable anti-icing liquid, such that the collected, spent anti-icing liquid will be particularly highly diluted by melt water.
  • the controller 40 also controls a serviceable anti-icing liquid heater 72, which is located outside the preparation vessel 62. Based on the temperature of the serviceable anti-icing liquid in the preparation vessel 62, serviceable anti-icing liquid is pumped from the preparation vessel 62 to the heater 72, heated, and then returned to the preparation vessel 62. Thereby, the temperature of the serviceable anti-icing liquid in the preparation vessel 62 may be kept at a treatment temperature, i.e. at a temperature suitable for de- icing a train 12, even if the ambient temperature outside the preparation vessel is low.
  • a suitable treatment temperature may be between about 10°C and 50°C, and preferably above 20°C.
  • the controller 40 may be configured to operate the heater 72 when the temperature falls below a lower treatment temperature limit, which may be between about 10°C and 50°C.
  • a heater may be located in the preparation vessel. Maintaining only the serviceable anti-icing liquid heated to an elevated treatment temperature, while maintaining anti- icing liquid concentrate and spent anti-icing liquid at a lower temperature, saves heating energy.
  • the serviceable anti-icing liquid may be kept at ambient temperature in the preparation vessel, and may be heated elsewhere by a separate heater when it is to be sprayed onto a train 12.
  • the serviceable anti-icing liquid may be sprayed onto the train 12 without having been heated, i.e. at ambient temperature, for merely forming an ice-repellent coating on the surface of the vehicle.
  • the spent anti-icing liquid tank 44 preferably has a capacity of at least 4 m 3 to allow performing a number of anti-icing operations between tapping off.
  • the preparation vessel 62 preferably has a capacity of at least 0,5 m 3 , which is typically more than sufficient for anti-icing a train.
  • the preparation vessel 62 has a capacity of less than 3 m 3 in order to limit the heating power required for maintaining the serviceable anti-icing liquid at treatment temperature.
  • the spent anti-icing liquid tank 44 and the preparation vessel 62 are thermally insulated to minimize heat dissipation therefrom.
  • the ingredient tank 54 typically does not need to be substantially heated.
  • the ingredient tank has a capacity of at least 1 m 3 to allow performing a number of anti-icing operations between refillings via the refilling line 60.
  • An ingredient concentration sensor 74 for determining the
  • the ingredient concentration sensor 74 may be a propylene glycol concentration sensor.
  • the concentration value determined by the ingredient sensor 74 is transmitted to the controller 40, and may be used by the controller 40 for calculating the ratio of spent anti-icing liquid and anti-icing liquid concentrate to be transferred to the preparation tank 62 for obtaining serviceable anti-icing liquid of the desired ingredient concentration.
  • a propylene glycol concentration of the serviceable anti-icing liquid of between 40% and 60% may typically be desired.
  • the ability to measure the ingredient concentration of the spent anti- icing liquid in the spent anti-icing liquid tank 44 also makes it possible to determine the freezing point of the spent anti-icing liquid in the tank 44.
  • the controller 40 may select the lower limit temperature of the spent anti-icing liquid based on the ingredient concentration of the spent anti-icing liquid. This makes it possible to even further lower the temperature at which the spent anti-icing liquid is stored to a temperature just above the freezing point.
  • the ingredient concentration sensor 74 is also connected to the preparation vessel via a serviceable anti-icing liquid sampling line 76.
  • the ingredient concentration of the serviceable anti-icing liquid inside the preparation vessel may also be determined by the controller 40, e.g. by alternatingly transferring liquid from the preparation vessel 62 and the spent anti-icing liquid tank, respectively, to the ingredient concentration sensor 74.
  • the ingredient concentration sensor 74 may also be connected to the ingredient tank 54 via an anti-icing liquid concentrate sampling line (not shown). Thereby, it is possible to verify the quality of the anti-icing liquid concentrate in the tank 54.
  • a single controller 40 performing several different functions, has been disclosed.
  • separate controllers may be used for those different functions, such as for operating different heaters.
  • a spray nozzle arrangement 16 comprising multiple spray nozzles has been illustrated.
  • the spray nozzle arrangement may comprise only one single spray nozzle.
  • each of the containers 44, 54, 62 has been illustrated as a closed container, any of them could alternatively be an open container.
  • the invention may be used for many different types of vehicles on tracks, such as trams, and is not limited to trains only.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

La présente invention porte sur un système de dégivrage (10) de train comprenant un agencement de buses de pulvérisation (16) destiné à pulvériser un liquide antigivrage prêt à l'emploi à une température de traitement sur un véhicule sur rails ; un plateau de collecte (18) destiné à collecter le liquide antigivrage utilisé qui tombe du véhicule ; un récipient de préparation (62) destiné à préparer le liquide antigivrage prêt à l'emploi à pulvériser sur le véhicule ; un réservoir de liquide (44) antigivrage utilisé destiné à recevoir et à stocker le liquide antigivrage utilisé collecté par le plateau de collecte (18) ; un réservoir d'ingrédients (54) destiné à stocker un concentré de liquide antigivrage ; une ligne d'alimentation en liquide antigivrage utilisé (66) destinée à fournir le liquide antigivrage utilisé à partir du réservoir de liquide (44) antigivrage utilisé vers le récipient de préparation (62) ; et une ligne d'alimentation en ingrédients (64) destinée fournir le concentré de liquide antigivrage à partir du réservoir d'ingrédients (54) vers le récipient de préparation (62).
PCT/SE2014/050550 2013-05-06 2014-05-06 Système de dégivrage de train WO2014182226A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201490000647.8U CN205327022U (zh) 2013-05-06 2014-05-06 列车防结冰系统
EP14795281.6A EP2994354A4 (fr) 2013-05-06 2014-05-06 Système de dégivrage de train

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1350548A SE1350548A1 (sv) 2013-05-06 2013-05-06 Tågavisningssystem
SE1350548-2 2013-05-06

Publications (1)

Publication Number Publication Date
WO2014182226A1 true WO2014182226A1 (fr) 2014-11-13

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PCT/SE2014/050550 WO2014182226A1 (fr) 2013-05-06 2014-05-06 Système de dégivrage de train

Country Status (4)

Country Link
EP (1) EP2994354A4 (fr)
CN (1) CN205327022U (fr)
SE (1) SE1350548A1 (fr)
WO (1) WO2014182226A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016076789A1 (fr) * 2014-11-14 2016-05-19 Solliq Ab Dispositif de distribution automatique d'un agent d'antigivrage ou d'un agent de dégivrage sur des véhicules de chemin de fer
WO2018063060A1 (fr) * 2016-09-30 2018-04-05 Nordic Ground Support Equipment Ip Ab Système antigivrage pour train
CN112415089A (zh) * 2019-08-21 2021-02-26 格兰富控股联合股份公司 泵系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107933610A (zh) * 2016-10-12 2018-04-20 姜飞 一种基于防冰液智能喷洒控制方法的列车防冰装置
CN107700418B (zh) * 2017-11-13 2024-03-29 南昌大学 一种铁路道岔有害空间防冻装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533395A (en) * 1968-08-12 1970-10-13 Stanray Corp Aircraft deicer system and apparatus
US5853262A (en) * 1994-04-26 1998-12-29 Bts Beratung Und Technik Fuer Die Strasse Gmbh Process and apparatus for de-icing roadways and re-using collected melting solution
US20090188989A1 (en) * 2006-02-03 2009-07-30 Nordic Ground Support Equipment Ip Ab Method and device for de-icing of trains
US20090294551A1 (en) * 2007-05-21 2009-12-03 Smith Richard L Apparatus and method for blending fluids
WO2013043090A1 (fr) * 2011-09-21 2013-03-28 Nordic Ground Support Equipment Ip Ab Système antigivre destiné à réduire le givre d'un véhicule sur rails et procédé de réduction du givre d'un véhicule sur rails

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Publication number Priority date Publication date Assignee Title
US20070182163A1 (en) * 2006-02-03 2007-08-09 Thomas Jemt Method and device for de-icing of trains

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533395A (en) * 1968-08-12 1970-10-13 Stanray Corp Aircraft deicer system and apparatus
US5853262A (en) * 1994-04-26 1998-12-29 Bts Beratung Und Technik Fuer Die Strasse Gmbh Process and apparatus for de-icing roadways and re-using collected melting solution
US20090188989A1 (en) * 2006-02-03 2009-07-30 Nordic Ground Support Equipment Ip Ab Method and device for de-icing of trains
US20090294551A1 (en) * 2007-05-21 2009-12-03 Smith Richard L Apparatus and method for blending fluids
WO2013043090A1 (fr) * 2011-09-21 2013-03-28 Nordic Ground Support Equipment Ip Ab Système antigivre destiné à réduire le givre d'un véhicule sur rails et procédé de réduction du givre d'un véhicule sur rails

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2994354A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016076789A1 (fr) * 2014-11-14 2016-05-19 Solliq Ab Dispositif de distribution automatique d'un agent d'antigivrage ou d'un agent de dégivrage sur des véhicules de chemin de fer
CN107206974A (zh) * 2014-11-14 2017-09-26 索里克有限公司 在铁路车辆上自动分配防冻剂或除冰剂的设备
WO2018063060A1 (fr) * 2016-09-30 2018-04-05 Nordic Ground Support Equipment Ip Ab Système antigivrage pour train
CN112415089A (zh) * 2019-08-21 2021-02-26 格兰富控股联合股份公司 泵系统
CN112415089B (zh) * 2019-08-21 2024-05-14 格兰富控股联合股份公司 泵系统

Also Published As

Publication number Publication date
EP2994354A4 (fr) 2017-02-15
EP2994354A1 (fr) 2016-03-16
SE1350548A1 (sv) 2014-11-07
CN205327022U (zh) 2016-06-22

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