EP3066410B1 - Control system and process against an occlusion for fog-generating device - Google Patents

Control system and process against an occlusion for fog-generating device Download PDF

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Publication number
EP3066410B1
EP3066410B1 EP14828548.9A EP14828548A EP3066410B1 EP 3066410 B1 EP3066410 B1 EP 3066410B1 EP 14828548 A EP14828548 A EP 14828548A EP 3066410 B1 EP3066410 B1 EP 3066410B1
Authority
EP
European Patent Office
Prior art keywords
control
fog
occlusion
thermal energy
energy exchanger
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.)
Active
Application number
EP14828548.9A
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German (de)
English (en)
French (fr)
Other versions
EP3066410A1 (en
Inventor
Marco Zangirolami
Giovanni BALESTRINI
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.)
UR Fog SRL
Original Assignee
UR Fog SRL
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Publication date
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Publication of EP3066410A1 publication Critical patent/EP3066410A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H9/00—Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F41H9/06—Apparatus for generating artificial fog or smoke screens

Definitions

  • the present invention refers to a control system and process against an occlusion for fog-generating device.
  • Fog-generating devices are known in the art, adapted to deliver thermal energy to a fog-generating liquid, typically based on glycols, in order to make this latter one quickly change its phase and afterwards condensate it into droplets which are sufficiently fine as not to be deposited and sufficiently big as to create scattering under visible radiation.
  • Such known fog-generating devices and in particular those whose function is preventing robberies, can incur in the intentional occlusion of their outlet nozzle: in this case it is therefore impossible for the device to emit fog in case of need, lacking its operation.
  • Object of the present invention is solving the above prior art problems, by providing a system and a control process against an occlusion for fog-generating device adapted to allow at least detecting, and signaling, in an automatic way, the presence of possible occlusions, for example present in the fog delivery circuit and/or in the nozzle of the device itself, which could impair the correct fog delivery operation. While such a system and control process against an occlusion in fog generating devices is principally known from DE 196 00 359 C1 , another object of the present invention is providing a system and a control process against an occlusion for fog-generating device adapted to allow the automatic removal of the detected occlusion.
  • such fog-generating device can comprise at least one container 3a, 3b containing therein at least one fog-generating fluid, possibly pressurized, such fluid being of a substantially known type in the art, at least one thermal energy exchanger 5 (possibly adapted to accumulate energy in thermal form) adapted to generate a phase passage of at least one of such fog-generating fluids coming from one or more of such containers 3a, 3b in a fog-generating gas, and at least one delivery nozzle to the external environment of such fog-generating gas from such thermal energy exchanger 5.
  • the fog-generating fluid is pressurized inside its related container 3b, as shown for example in particular in Figures 1 , 4 and 5 , this latter one can be connected to at least one thermal energy exchanger 5 by interposing at least one first valve means 11 (composed, for example, of at least one check valve) adapted to be driven when opening, for example through an electric or mechanic drive, in order to allow the passage of the fog-generating fluid from the related container 3b to at least one thermal energy exchanger 5, for example through a related duct 13.
  • first valve means 11 Composed, for example, of at least one check valve
  • the fog-generating fluid is not pressurized inside the related container 3a, as shown for example in particular in Figures 1 , 2 and 3 , this latter one can be connected to at least one thermal energy exchanger 5 by interposing at least one first pumping means 15 whose operation is driven, for example through an electric or mechanic drive, in order to allow pumping with adequate pressure the fog-generating fluid from its related container 3a to at least one thermal energy exchanger 5, for example through such duct 13.
  • the system and the control process against an occlusion allow verifying the presence of possible occlusions, total or partial ones, which impair or prevent the delivery of fog-generating gas 9 through the nozzle 7 pressurizing one or more thermal energy accumulators 5, such as for example a boiler, present in the related fog-generating device, by introducing a compressed control fluid, composed for example of at least one compressed gas or of a liquid with boiling temperature sufficiently low to be able to create a steam which pressurizes such thermal energy accumulators 5, and, through at least one pressure measuring means, measure the pressure inside the thermal energy exchanger 5: if the pressure inside such thermal energy exchanger 5 rises over an established threshold value, and substantially the pressure value present in case of flow of fog-generating gas 9 with completely free nozzle 7, one is able to detect the presence of at least one total or partial occlusion.
  • a compressed control fluid composed for example of at least one compressed gas or of a liquid with boiling temperature sufficiently low to be able to create a steam which pressurizes such thermal energy accumulators
  • control system against an occlusion 1 comprises:
  • control fluid can be any non-pressurized fluid, such as for example a gas (preferably inert gas), ambient air, a liquid (preferably water or any other liquid having a boiling temperature lower than the operating temperature of the thermal energy exchanger 5, so that the following passage of the control fluid to the vapor state generates the pressurization of the thermal energy exchanger 5 itself and the generation therein of the control compression) and such pressurizing means 17 can comprise at least one related pumping means for gas 21 or at least one related pumping means for liquids 23, such pumping means 21, 23 being composed, for example, of one or more volumetric pumps, which are speed-controlled or not.
  • a gas preferably inert gas
  • ambient air preferably water or any other liquid having a boiling temperature lower than the operating temperature of the thermal energy exchanger 5
  • a liquid preferably water or any other liquid having a boiling temperature lower than the operating temperature of the thermal energy exchanger 5
  • pressurizing means 17 can comprise at least one related pumping means for gas 21 or at least one related pumping means for liquids 23, such pump
  • the pressurizing means 17 comprise at least one pumping means for gas 21 adapted to compress the non-pressurized control fluid in gaseous form coming from a related container (not shown) or taken by the external environment, such as for example ambient air, and to pump it inside the thermal energy exchanger 5, for example through the same duct 13.
  • the pressurizing means 17 comprise at least one pumping means for liquids 23 adapted to compress the non-pressurized control fluid in liquid form, for example water, contained in a related container of the control fluid 25 and to pump it inside the thermal energy exchanger 5, for example through the same duct 13.
  • control fluid can be any pressurized fluid, such as for example a gas, a liquid, a gas/liquid mixture, contained in at least one related pressurized container or bottle 27 and such pressurizing means 17 can comprise at least one related control valve means 29 interposed between such pressurized container or bottle 27 and the thermal energy exchanger 5, such control valve means 29 being composed, for example, by one or more proportional valves or not (if one is not interested in checking the amount of flow of the control fluid).
  • the pressurizing means 17 comprise at least one control valve means 29 adapted to be opened to allow the pressurized control fluid as gas/liquid mixture contained in the related pressurized container or bottle 27 to reach the thermal energy exchanger 5, for example through the same duct 13.
  • the pressurizing means 17 comprise at least one control valve means 29 adapted to be opened to allow the compressed control fluid as gas contained in the related pressurized container or bottle 27 to reach the thermal energy exchanger 5, for example through the same duct 13.
  • the measuring means 19 can indifferently be of the analogue or digital type.
  • the output signal given by the pressure control value P c could be fetched by suitable processing means of such signal (not shown) which, depending on the occlusion amount detected by the comparing means adapted to compare such pressure control value P c with the normal pressure threshold value P s , could identify even partial occlusions.
  • the identified occlusion level will depend on the calibration of the pressure switch and on the flow of control fluid inserted in the thermal energy exchanger 5.
  • the presence of signal processing means could be not necessary, but the signal itself could be directly applied, by interposing the comparing means, to the signaling means composed, for example, through such one or more optical and/or acoustic systems or directly remotized.
  • control system against an occlusion 1 can cooperate with the managing system of the emission of fog-generating gas of the related fog-generating device in such a way that, if the comparing means detects that P c > P s , the control system against an occlusion 1 is adapted to drive such managing system for delivering in the external environment, from the fog-generating device, at least one emission of fog-generating gas in order to try and free the detected occlusion.
  • a fog-generating device further comprises at least one control system against an occlusion 1 like the previously described one, such control system against an occlusion 1 then comprising:
  • the process according to the present invention further comprises the steps of:
  • the process according to the present invention further comprises the step, if P c > P s , of delivering at least one emission of fog-generating gas by such fog-generating device in order to try and free the detected occlusion.
  • the flow of compressed control fluid should remain at least inside the thermal energy exchanger 5 for the whole time for whith it is desired to protect the fog-generating device from a possible tampering.
  • the check of the presence of occlusions, in particular inside the nozzle 7, through the system and the process according to the present invention, should be preferably performed at all those times in which the fog-generating device can be vulnerable to an intruder or anyway before the device itself can start operating.
  • the vulnerability conditions which can cause a lack of efficiency are substantially of two types:

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Burglar Alarm Systems (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Cephalosporin Compounds (AREA)
EP14828548.9A 2013-11-08 2014-11-07 Control system and process against an occlusion for fog-generating device Active EP3066410B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000906A ITTO20130906A1 (it) 2013-11-08 2013-11-08 Sistema e procedimento di controllo antiocclusione per dispositivo nebbiogeno.
PCT/IT2014/000292 WO2015068182A1 (en) 2013-11-08 2014-11-07 Control system and process against an occlusion for fog-generating device

Publications (2)

Publication Number Publication Date
EP3066410A1 EP3066410A1 (en) 2016-09-14
EP3066410B1 true EP3066410B1 (en) 2018-01-10

Family

ID=49684005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14828548.9A Active EP3066410B1 (en) 2013-11-08 2014-11-07 Control system and process against an occlusion for fog-generating device

Country Status (5)

Country Link
EP (1) EP3066410B1 (it)
BR (1) BR112016010124B1 (it)
DK (1) DK3066410T3 (it)
IT (1) ITTO20130906A1 (it)
WO (1) WO2015068182A1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020060395A1 (en) * 2018-09-17 2020-03-26 Iron Technologies B.V. An anti-intrusion system with a fog generator for generating fog at an intrusion event

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439341A (en) * 1983-03-21 1984-03-27 The United States Of America As Represented By The Secretary Of The Navy Smoke generator for use with water and smoke generant
ATE146002T1 (de) * 1992-09-12 1996-12-15 Paul Anton Dards Einbrecher-abschrecksystem
DE19600359C1 (de) * 1996-01-08 1997-06-12 Delta Electronic Gmbh Nebelgerät für eine Alarmanlage
GB2449678A (en) * 2007-05-31 2008-12-03 Air Tube Conveyors Ltd Security fog system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020060395A1 (en) * 2018-09-17 2020-03-26 Iron Technologies B.V. An anti-intrusion system with a fog generator for generating fog at an intrusion event
NL2021650B1 (en) * 2018-09-17 2020-05-07 Iron Tech B V An anti-intrusion system with a fog generator for generating fog at an intrusion event

Also Published As

Publication number Publication date
EP3066410A1 (en) 2016-09-14
DK3066410T3 (en) 2018-04-16
WO2015068182A1 (en) 2015-05-14
BR112016010124B1 (pt) 2021-03-16
ITTO20130906A1 (it) 2014-02-07

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