EP2065662A1 - Gesicherter Wasser- und/oder Luftverteiler für Beschneiungssystem, der mit einem über einen elektrischen Schalter gesteuerten Schieber ausgerüstet ist - Google Patents

Gesicherter Wasser- und/oder Luftverteiler für Beschneiungssystem, der mit einem über einen elektrischen Schalter gesteuerten Schieber ausgerüstet ist Download PDF

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Publication number
EP2065662A1
EP2065662A1 EP20080291131 EP08291131A EP2065662A1 EP 2065662 A1 EP2065662 A1 EP 2065662A1 EP 20080291131 EP20080291131 EP 20080291131 EP 08291131 A EP08291131 A EP 08291131A EP 2065662 A1 EP2065662 A1 EP 2065662A1
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EP
European Patent Office
Prior art keywords
valve
actuator
voltage
assembly
capacitor
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
Application number
EP20080291131
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English (en)
French (fr)
Other versions
EP2065662B1 (de
Inventor
Damien Landreau
Eric David
Patrick Jouneau
Michel Galvin
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.)
Technoalpin France SAS
Original Assignee
Johnson Controls Neige Sas
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Publication date
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Publication of EP2065662A1 publication Critical patent/EP2065662A1/de
Application granted granted Critical
Publication of EP2065662B1 publication Critical patent/EP2065662B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
    • F25C3/04—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow for sledging or ski trails; Producing artificial snow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2303/00—Special arrangements or features for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Special arrangements or features for producing artificial snow
    • F25C2303/044—Snow making using additional features, e.g. additives, liquid gas

Definitions

  • the present invention relates to the general field of crop snow production. It relates more particularly to a secure water and / or air distributor for a snowmaking system, equipped with a valve controlled by an electric actuator; it also relates to the installation of secure snow including such distributors.
  • These devices are housed in a shelter located in the immediate vicinity of the snowmaker. For their operation, they are powered from the typical 230 VAC network supply.
  • the snowmaking installation comprises an emergency power supply, connected in parallel with the main power supply, comprising a battery associated with a centralized inverter allowing, from a detection of absence of current on the main power supply, to place all the snow guns' valves of the runway in a certain security configuration (total waterproof closure, or other).
  • the present invention aims to overcome the aforementioned drawbacks by proposing an original security system implementing simple, effective and inexpensive means.
  • the corresponding security means are integrated in the management means specific to each distributor and they comprise an electrical assembly of capacitor type connected to the power supply source and to the actuator, which capacitor assembly is able to store a quantity of energy necessary for the complete maneuver of the valve and then to restore it, this restitution of energy being used, during a power cut at the power supply, to implement said security means.
  • valve actuator management means comprise a charger module located upstream of the capacitor assembly, and on the other hand, a voltage booster assembly located downstream of said capacitor assembly, to recreate a supply voltage adapted to said valve actuator from the voltage generated by said capacitor assembly.
  • the management means further comprise a control logic arranged to drive said actuator, which control logic is supplied with energy by the voltage booster assembly and is associated with means for detecting the voltage failure. at the power source so, when detecting a power failure, to drive said actuator to position the associated valve in the desired security configuration.
  • the electrical source supplies a direct current to the charger module, the voltage booster assembly also supplying a direct current, for supplying an electric actuator operating on direct current, or in association with an inverter stage. , on alternating current.
  • the voltage booster assembly also supplying a direct current, for supplying an electric actuator operating on direct current, or in association with an inverter stage. , on alternating current.
  • it will generate a control voltage of 24 VDC for supplying the valve actuator, and a control voltage of 5 VDC for supplying the control logic.
  • mains supply typically 230 VAC.
  • the means for detecting a voltage cutoff at the power supply source advantageously consist of a threshold relay interposed between the control logic and said electrical source, upstream of the charger module.
  • the actuator is connected to the power supply source only via the charger module, the set capacitor and the voltage booster assembly, so as to ensure the continued operation of the security means.
  • the capacitor assembly has a value of between 20 and 1000 farads; more preferably this value is between 100 and 300 farads.
  • the distributor management means comprise means for remotely signaling the absence of voltage, as well as possibly means for transmitting certain state or measurement parameters related to the equipped valve, or its environment. , during the phase of absence of tension.
  • a control logic controls the electric actuator and is connected to a network manager, such as a computer. or PLC, via a communication line.
  • This communication line comprises at least one signal amplifier device, connected to a power supply source, which signal amplifier comprises a secure power supply device integrating a charger module, a capacitor assembly and a voltage booster assembly, which together capacitor is able to store a quantity of energy necessary for the transmission of information on the communication line for a sufficient time so that the network manager can ensure the security of all the distributors, and to then restoring it, this energy restitution being used, during a power failure at the power supply source, to supply the signal amplifier device.
  • the snowmaking facility illustrated on the figure 1 comprises a plurality of snow guns 1 adapted to produce snow culture from water and air under pressure.
  • the installation comprises an air source 2 and a water source 3 which feed each snowgun 1 through main pipes, respectively 4 and 5, and bypass 6, 7.
  • the water pipes and air end at each snowgun 1 to a distributor 8 which is equipped with a valve 9 associated with an electric actuator 10 adapted to manage the flow of water and air. This management is done individually at the level of each snowmaker 1.
  • each actuator 10 is driven by management means 11 and supplied with electricity from a source 12.
  • management means 11 are connected to a network manager 13, of the computer or programmable logic controller type, via a communication line 14.
  • each distributor 8 integrates its own security means adapted to place the associated valve 9 in a given configuration called "security", in the case of a power failure 12.
  • This security configuration can for example consist of a sealed closed configuration of the valve 9, stopping the supply of water and air to the snowmaker.
  • the actuator 10 is controlled by a micro-controller type control logic 15, and it is supplied with electricity, from the power supply 12, via a capacitor assembly 16 which is associated, upstream , to a charger module 17, and downstream to a voltage booster assembly 18.
  • Each actuator 10 is advantageously double-acting type and operates on direct current.
  • a power supply 19 arranged at each snow-blower shelter 1 provides the DC power supply required.
  • the power supply 19 provides 24 VDC
  • the module charger 17 is of the type 24 VDC / 5 VDC
  • the voltage booster assembly 18 is of the type 5 VDC / 24 VDC.
  • the capacitor assembly 16 must be adapted to store a quantity of energy necessary to allow the complete operation of the valve 9 by the actuator 10. Depending on the characteristics of the valve 9 and its actuator 10, this capacitor assembly 16 will have a preferred value of between 100 and 300 farads; in particular for a valve 9 of the drawer type and an actuator 10 of the electric direct-current gear motor type with a power of 12 Watts, two modules connected in series, each having a value of 350 farads (for example ref. Maxwell BCAP 350F), to obtain a total value of 175 farads.
  • capacitor values make it possible, in the event of the power supply 12 to be cut off, 19 to ensure the operation of the actuator 10 for a time sufficient to move the slide valve 9 on a complete forward or return stroke, at least , in order to place this valve in the selected safety configuration (the corresponding duration of operation is relatively long, of the order of 1 to 6 minutes due to the use of an electric geared motor).
  • the microcontroller 15 is powered by the voltage booster assembly 18 via a converter system 20 of the 24 VDC / 5 VDC type.
  • this microcontroller 15 is associated with means 21 which make it possible to detect a cut-off of the power supply 12, 19; these means here consist of a threshold relay 21 interposed between the power supply 19 and the microcontroller 15 (upstream of the charger module 17).
  • the energy stored in the capacitor unit 16 allows the microcontroller 15 to continue to operate, and the actuator 10 can be implemented.
  • the microcontroller 15 is warned of the power failure by the threshold relay 21 and it drives the actuator 10 to reach the desired security configuration of the valve 9.
  • the characteristics of the capacitor assembly 16 are adapted to restore sufficient energy to the respect of this functionality, according to the operating characteristics of the valve 9 and the associated actuator 10.
  • All the distributors 8 of the snowmaking system operate in an identical manner and it is thus understood that a supply voltage fault causes the safety of the entire installation.
  • the microcontroller 15 continues to operate as long as it is sufficiently powered by the converter module 20 (itself powered by the elevator assembly 18).
  • the valve 9 is immobilized by the double-acting actuator 10 which is no longer powered.
  • the network manager 13 knows, by the message sent, whether or not the valve 9 is in the safety position. If this valve 9 is in the safety position, a simple power failure alarm is issued; when the supply returns, the microcontroller 15 will start a sequence of restarting the snowmaker, possibly under the control of the network manager 13. If the valve 9 is not in its secure position, a fault is generated by the network manager 13 and a request for intervention can be launched automatically, including by phone call.
  • the safety assembly (charger 17 / capacitor 16 / voltage booster 18) can be provided in parallel with a direct supply of the actuator 10 by the power supply 19.
  • the figure 4 shows in the form of a block diagram an electronic control card adapted to manage the operation of a distributor 8 according to the invention, and in particular according to the block diagram of the figure 2 .
  • repeaters 30 are advantageously provided with a secure power supply device similar to that described above for the distributors 8. This device will include a 5 VDC power supply, associated with a safety charger / capacitor (s) / voltage booster (connected in series or parallel to the conventional power supply).
  • the characteristics of the components used (in particular the value of the capacitors) will be adapted to allow the repeaters 30 thus equipped to continue to be powered a few minutes after a break in the main power supply 12. Given the absence of mechanical devices to maneuver , the values of the capacitor or capacitors used may be substantially less than those mentioned above for the distributor 8.
  • the present invention applies not only to the distributor of the snowmaker, but also to any other distributor disposed on the snowmaking network, for example a control distributor of the distribution of the flow rates. in the snow network.
  • a control distributor of the distribution of the flow rates. in the snow network it may be useful to provide such a device to limit the discharge rate in certain areas to optimize the return of water into the tank.
  • an emergency emptying strategy will be embodied as a sequence in the network manager 13 (then the security configuration of the valve may correspond to an open position at a certain defined value).
  • the structure of the means according to the invention is adapted according to the type of valve 9 and actuator 10 in the presence.
  • the valves 9 may be of the mono-fluid or bi-fluid type, with slide technology, ball valve, butterfly valve, seat ...
  • the actuators 10 may be of the brushless geared motor or stepper motor gearbox type.
  • any security configuration will be possible, depending on the type of valve in particular, for example sealed, or partially open or fully open.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
EP08291131.4A 2007-11-29 2008-11-28 Gesicherter Wasser- und/oder Luftverteiler für Beschneiungssystem, der mit einem über einen elektrischen Schalter gesteuerten Schieber ausgerüstet ist Active EP2065662B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0708339A FR2924481B1 (fr) 2007-11-29 2007-11-29 Distributeur securise d'eau et/ou d'air pour systeme d'enneigement, equipe d'une vanne pilotee par un actionneur electrique

Publications (2)

Publication Number Publication Date
EP2065662A1 true EP2065662A1 (de) 2009-06-03
EP2065662B1 EP2065662B1 (de) 2020-01-22

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EP08291131.4A Active EP2065662B1 (de) 2007-11-29 2008-11-28 Gesicherter Wasser- und/oder Luftverteiler für Beschneiungssystem, der mit einem über einen elektrischen Schalter gesteuerten Schieber ausgerüstet ist

Country Status (3)

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US (1) US8292261B2 (de)
EP (1) EP2065662B1 (de)
FR (1) FR2924481B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012098106A3 (fr) * 2011-01-17 2012-12-13 Somfy Sas Installation de protection solaire, de fermeture ou d'occultation comprenant une unité d'alimentation électrique de secours pour un actionneur et procédé de commande d'une telle installation

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1402888B1 (it) * 2010-11-23 2013-09-27 Technoalpin A G S P A Ora Technoalpin Holding S P A Impianto d'innevamento artificiale
JP5891009B2 (ja) * 2011-11-04 2016-03-22 アズビル株式会社 電動アクチュエータ
WO2016164500A1 (en) 2015-04-06 2016-10-13 Snow Logic, Inc. Snowmaking automation system and modules
JP6959063B2 (ja) * 2017-08-04 2021-11-02 アズビル株式会社 充電制御システム
IT201800009453A1 (it) * 2018-10-15 2020-04-15 Technoalpin Holding - Spa Metodo e sistema per pianificare la produzione di un impianto di innevamento artificiale

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US3606971A (en) * 1970-05-28 1971-09-21 Curtiss Wright Corp Gas turbine air compressor and control therefor
US5031832A (en) 1990-01-26 1991-07-16 Ratnik Industries Inc. Automated snow-making system
US5422808A (en) * 1993-04-20 1995-06-06 Anthony T. Catanese, Jr. Method and apparatus for fail-safe control of at least one electro-mechanical or electro-hydraulic component
KR20020006111A (ko) 2000-07-11 2002-01-19 김종민 전자동 조설 시스템
JP2004275273A (ja) * 2003-03-13 2004-10-07 Hochiki Corp 放水銃装置
EP1806831A2 (de) * 2006-01-05 2007-07-11 AMETEK ITALIA S.r.l. Tragbare Luftstromanwendung mit dualer Stromversorgung

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JP3874344B2 (ja) * 2002-01-17 2007-01-31 株式会社小松製作所 ハイブリッド電源システム
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Publication number Priority date Publication date Assignee Title
US3606971A (en) * 1970-05-28 1971-09-21 Curtiss Wright Corp Gas turbine air compressor and control therefor
US5031832A (en) 1990-01-26 1991-07-16 Ratnik Industries Inc. Automated snow-making system
US5422808A (en) * 1993-04-20 1995-06-06 Anthony T. Catanese, Jr. Method and apparatus for fail-safe control of at least one electro-mechanical or electro-hydraulic component
KR20020006111A (ko) 2000-07-11 2002-01-19 김종민 전자동 조설 시스템
JP2004275273A (ja) * 2003-03-13 2004-10-07 Hochiki Corp 放水銃装置
EP1806831A2 (de) * 2006-01-05 2007-07-11 AMETEK ITALIA S.r.l. Tragbare Luftstromanwendung mit dualer Stromversorgung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012098106A3 (fr) * 2011-01-17 2012-12-13 Somfy Sas Installation de protection solaire, de fermeture ou d'occultation comprenant une unité d'alimentation électrique de secours pour un actionneur et procédé de commande d'une telle installation
CN103348084A (zh) * 2011-01-17 2013-10-09 Somfy两合公司 包括用于致动器的备用供电单元的防晒、关闭或遮光装置和用于控制该装置的方法
CN103348084B (zh) * 2011-01-17 2015-12-02 Somfy两合公司 包括用于致动器的备用供电单元的防晒、关闭或遮光装置和用于控制该装置的方法

Also Published As

Publication number Publication date
US8292261B2 (en) 2012-10-23
FR2924481A1 (fr) 2009-06-05
FR2924481B1 (fr) 2013-04-26
EP2065662B1 (de) 2020-01-22
US20090140069A1 (en) 2009-06-04

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