EP0911082B1 - Verfahren zur erzeugung eines strahles von gas und tröpfchen, ausrüstung und düse zur durchführung dieses verfahrens - Google Patents

Verfahren zur erzeugung eines strahles von gas und tröpfchen, ausrüstung und düse zur durchführung dieses verfahrens Download PDF

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Publication number
EP0911082B1
EP0911082B1 EP97932056A EP97932056A EP0911082B1 EP 0911082 B1 EP0911082 B1 EP 0911082B1 EP 97932056 A EP97932056 A EP 97932056A EP 97932056 A EP97932056 A EP 97932056A EP 0911082 B1 EP0911082 B1 EP 0911082B1
Authority
EP
European Patent Office
Prior art keywords
gas
nozzle
liquid
stream
flow
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
EP97932056A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0911082A1 (de
EP0911082A4 (de
Inventor
Jury Vladimirovich Zuev
Alexandr Vladimirovich Karpyshev
Igor Alexandrovich Lepeshinsky
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.)
NAUCHNO-ISSLEDOVATELSKY INST NIZKIKH TEMPERATUR P
Original Assignee
Nauchno-Issledovatelsky Institut Nizkikh Temperatur Primai (Moskovskom Gosudarstvennnom Aviatsionnom Institutetekhnicheskom Un
NII NIZKIKH TEMPERATUR PRI MAI
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 Nauchno-Issledovatelsky Institut Nizkikh Temperatur Primai (Moskovskom Gosudarstvennnom Aviatsionnom Institutetekhnicheskom Un, NII NIZKIKH TEMPERATUR PRI MAI filed Critical Nauchno-Issledovatelsky Institut Nizkikh Temperatur Primai (Moskovskom Gosudarstvennnom Aviatsionnom Institutetekhnicheskom Un
Publication of EP0911082A1 publication Critical patent/EP0911082A1/de
Publication of EP0911082A4 publication Critical patent/EP0911082A4/de
Application granted granted Critical
Publication of EP0911082B1 publication Critical patent/EP0911082B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/045—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber the gas and liquid flows being parallel just upstream the mixing chamber
    • 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
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0207—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires by blowing air or gas currents with or without dispersion of fire extinguishing agents; Apparatus therefor, e.g. fans
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0433—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of gas surrounded by an external conduit of liquid upstream the mixing chamber

Definitions

  • the present inventions relate to the technology of Formation of long-range gas droplet jets can be used in fire extinguishing technology, in agriculture Irrigation of the soil and used in other industries in which the generation of gas droplet jets long range is required.
  • Methods for generating liquid jets are known with some the long range of the beam by increasing the pressure in the fluid delivery system and others by supplying a gas jet into a nozzle of the device is guaranteed.
  • the known method involves accelerating a gas stream in a gas dynamic nozzle, the supply of a disperse Liquid flow into the gas flow during its acceleration and the acceleration of the resulting two-phase current in the nozzle.
  • the known device comprises a profiled channel and a mixing chamber.
  • a common disadvantage of the analogs mentioned is that it is impossible with the known means, the range of the gas droplet jet beyond 50 m what e.g. when extinguishing fires in multi-storey buildings and high facilities is required and that it is difficult is, the dispersion composition of the jet drops too Taxes.
  • the conditions are the known technical solutions not defined for the formation of the gas droplet jet, under which the range of the gas droplet jet is up to the required width (over 50 m) can be increased.
  • the present invention is based on the object Range of the formed gas droplet jet to 50 m and to further increase, thereby broadening the scope of the Process, the device and the nozzle would be possible.
  • Water can be used as the liquid.
  • Length L of a profiled channel of the nozzle is selected according to the following condition: L ⁇ 5d kr , where d kr is the diameter of the critical cross section of the nozzle.
  • Water can be used as the liquid in the device become.
  • the system of gas supply at least a turbocompressor device with an outlet device comprises, which is connected to an inlet of the gas dynamic nozzle stands.
  • the device can be designed to be mobile, for what purpose it is provided with a means of transportation.
  • the technical result mentioned can also be achieved in that, in the case of a nozzle for generating the gas droplet jet, which comprises a profiled channel and a chamber for mixing liquid and gas, the length L of the profiled channel of the nozzle according to the following condition is selected: L ⁇ 5d kr , where d kr is the diameter of the critical cross section of the nozzle.
  • Water can be used as the liquid.
  • Water is used as the liquid.
  • a turbocompressor device is used to generate the gas flow used.
  • the proposed device comprises a system 1 (FIG. 1) for supplying liquid, a system 2 for supplying gas, a gas-dynamic nozzle 4 with a chamber 3 for mixing liquid and gas.
  • the length of a profiled channel 7 (FIGS. 2 and 3) of the nozzle was chosen according to the following condition: L ⁇ 5d kr , where d kr is the diameter of the critical cross section of the nozzle.
  • liquid Water is used, but it should be noted that as a liquid other fabrics can be used depending on the specific application of the device.
  • the system 2 of gas supply comprises a turbocompressor device, whose outlet device with the inlet of the gas dynamic Nozzle 4 communicates.
  • turbocompressor device used, but it should be noted that it can be several such devices.
  • the device also includes a system 5 (Fig. 1) for Control of the adjustment of the nozzle and a means of transport 6 for a relocation on which the systems and components the device are arranged.
  • a system 5 Fig. 1 for Control of the adjustment of the nozzle
  • a means of transport 6 for a relocation on which the systems and components the device are arranged.
  • FIG. 3 The embodiment of the device depicted in FIG. 3 is identical to the embodiment of the device of FIG. 2. The difference lies in the embodiment of the profiled Channel 7 of the nozzle in the form of a ring (Fig. 3). When using the Ring nozzle 4, a central body 10 is arranged in the channel.
  • the nozzle 4 comprises a chamber 3 for mixing liquid and gas (Fig. 2) with devices 8 for supplying liquid and a device 9 for gas supply and a profiled channel 7.
  • the length of the profiled channel of the nozzle was chosen according to the following condition: L ⁇ 5d kr , where d kr is the diameter of the critical cross section of the nozzle.
  • the embodiment of the nozzle shown in FIG. 3 is identical with the embodiment of the nozzle from FIG. 2.
  • the profiled channel 7 of the Nozzle 4 is formed in a ring shape and a central body in it 10 is arranged (this type of nozzle is up to any person skilled in the art known in the field of gas dynamics).
  • the above conditions of choice of gas pressure and relative concentration of the liquid in the two-phase flow for the proposed procedure, as well as the conditions for the Choice of the length of the gasodynamic nozzle for the proposed are based on the following factors set the influence on the effectiveness of acceleration of the gas droplet jet and its velocity that determine the range of the beam.
  • the required velocity of the gas droplet jet is determined by the pressure value P when entering the gas dynamic nozzle: P ⁇ 5 * 10 5 Pa.
  • these pressure values are at the inlet the nozzle accelerates the two-phase flow (gaseous liquid) possible up to a speed that, taking into account the real efficiency of the nozzle, over 60 m / s lies.
  • the speed values of the gas-liquid mixture reached are more than twice the highest Velocity values of a liquid jet, which with the previous means achieved with the same liquid parameters can be.
  • the device is operated using the means of transport 6 (e.g. of an automobile) brought into the starting position.
  • the nozzle 4 becomes mean control of the system 5 for adjustment control the nozzle is directed towards an object, which is the gas droplet jet should be fed.
  • the turbocompressor device forming part of the system 2 of the gas supply (not shown in the drawings) switched on.
  • the accelerated air flow from the outlet of the Engine is in the device 9 for gas supply Mixing chamber 3 passed, where the two-phase flow arises.
  • Water is in the mixing chamber 3 through devices 8 for Injection of liquid in the form of individual jets, which mix with the incoming air, creating a Stream of gas droplets is created.
  • devices 8 for Injection of liquid in the form of individual jets which mix with the incoming air, creating a Stream of gas droplets is created.
  • For even distribution of the Water in the mixing chamber 3 can be used as devices for Fluid jets are used.
  • the gas-droplet jet can be distributed relatively evenly the water drop compacted in the cross-section of the beam (compressed).
  • the maximum values of the air pressure at the inlet of the nozzle and the relative concentration of water in the two-phase flow are chosen from conditions of the greatest packing density of the water particles in the air flow: P * g ⁇ 5.7 * 10 8 Pa, where P is the air pressure at the inlet opening of the nozzle and g is the relative concentration of water in the two-phase stream.
  • the air pressure at the inlet of the nozzle must be above 5 * 10 5 Pa in order to achieve the required (over 50 m) range of the gas droplet jet.
  • the range of the gas droplet jet is on insertion of the subject of the invention about 2.5 times larger than the maximum range of a liquid jet for the same Fluid consumption and the same initial pressure.
  • the available data confirm the possibility of realization the proposed method for generating a Gas droplet jet, as well as the device and the nozzle, with to whom the procedure is carried out and the possibility of Achieve the technical task in increasing the range of the gas droplet jet.
  • the process, the device and the nozzle used to produce of the gas droplet jet according to the invention are provided, can be used in different industries, in which the generation of a gas droplet jet with long range is required.

Landscapes

  • Emergency Management (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Dispersion Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Nozzles (AREA)
  • Gas Separation By Absorption (AREA)
  • Pipeline Systems (AREA)
  • Lasers (AREA)
  • Junction Field-Effect Transistors (AREA)
EP97932056A 1996-07-08 1997-07-07 Verfahren zur erzeugung eines strahles von gas und tröpfchen, ausrüstung und düse zur durchführung dieses verfahrens Expired - Lifetime EP0911082B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU96113451 1996-07-08
RU96113451/25A RU2107554C1 (ru) 1996-07-08 1996-07-08 Способ создания газокапельной струи, установка для его осуществления и сопло для создания газокапельной струи
PCT/RU1997/000217 WO1998001231A1 (fr) 1996-07-08 1997-07-07 Procede de formation de jet de type gaz-gouttelettes, installation et buse

Publications (3)

Publication Number Publication Date
EP0911082A1 EP0911082A1 (de) 1999-04-28
EP0911082A4 EP0911082A4 (de) 2000-07-26
EP0911082B1 true EP0911082B1 (de) 2001-12-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97932056A Expired - Lifetime EP0911082B1 (de) 1996-07-08 1997-07-07 Verfahren zur erzeugung eines strahles von gas und tröpfchen, ausrüstung und düse zur durchführung dieses verfahrens

Country Status (8)

Country Link
EP (1) EP0911082B1 (ru)
AT (1) ATE209970T1 (ru)
DE (1) DE59705677D1 (ru)
DK (1) DK0911082T3 (ru)
ES (1) ES2169406T3 (ru)
PT (1) PT911082E (ru)
RU (1) RU2107554C1 (ru)
WO (1) WO1998001231A1 (ru)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8193395B2 (en) 2007-05-02 2012-06-05 Pursuit Dynamics Plc Biomass treatment process and system
US8419378B2 (en) 2004-07-29 2013-04-16 Pursuit Dynamics Plc Jet pump
US8789769B2 (en) 2006-09-15 2014-07-29 Tyco Fire & Security Gmbh Mist generating apparatus and method

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RU2131379C1 (ru) * 1998-02-06 1999-06-10 Научно-исследовательский институт низких температур при Московском государственном авиационном институте - техническом университете Способ пожаротушения с использованием летательного аппарата и устройство для его осуществления
RU2132752C1 (ru) 1998-04-13 1999-07-10 Научно-исследовательский институт низких температур при МАИ (Московском государственном авиационном институте - техническом университете) Устройство для создания газокапельной струи и клапан для подачи двухфазной рабочей среды
SK283606B6 (sk) * 2000-04-11 2003-10-07 Július Chrobák Spôsob zvýšenia dostreku kontinuálneho aerosólového lúča
FI20011787A (fi) 2001-09-10 2003-03-11 Marioff Corp Oy Menetelmä suihkutuspäässä ja suihkutuspää
RU2243036C1 (ru) * 2003-04-17 2004-12-27 Закрытое акционерное общество "СИЛЭН" Способ создания газокапельной струи и устройство для его выполнения
RU2252080C1 (ru) * 2003-08-22 2005-05-20 Закрытое акционерное общество "СИЛЭН" Способ создания газокапельной двухфазной струи и устройство для его осуществления
ATE446145T1 (de) 2004-02-26 2009-11-15 Pursuit Dynamics Plc Verfahren und vorrichtung zur erzeugung von nebel
EP1720660B1 (en) 2004-02-26 2009-11-18 Pursuit Dynamics PLC. Improvements in or relating to a method and apparatus for generating a mist
US20080103217A1 (en) 2006-10-31 2008-05-01 Hari Babu Sunkara Polyether ester elastomer composition
EP1894635A4 (en) * 2005-05-23 2009-06-10 Lepeshinsky Igor Aleksandrovic PROCESS FOR PRODUCING A DIPHASIC DRIP GASOUT JET AND DEVICE FOR IMPLEMENTING IT
RU2292959C1 (ru) 2005-06-08 2007-02-10 Игорь Александрович Лепешинский Способ создания газокапельной струи и устройство для его осуществления
FR2894854B1 (fr) * 2005-12-15 2008-02-22 Egci Pillard Sa Chambre de melange et dispositif de pulverisation comportant une telle chambre
WO2011099900A1 (en) * 2010-02-15 2011-08-18 Lamie Saif Fluid ejector
RU2445139C1 (ru) * 2010-10-25 2012-03-20 Федеральное государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский университет Государственной противопожарной службы Министерства Российской Федерации по делам гражданской обороны, чрезвычайным ситуациям и ликвидации последствий стихийных бедствий" Ствол-насос
RU2472591C2 (ru) * 2011-04-21 2013-01-20 Сайнмет Ла, Инкорпорейтед Способ получения мелкодисперсных смесей из различных фазовых компонентов и устройство для его осуществления
RU2492936C1 (ru) * 2012-03-13 2013-09-20 Игорь Александрович Лепешинский Способ формирования газокапельной струи
RU2482928C1 (ru) * 2012-03-20 2013-05-27 Олег Савельевич Кочетов Устройство создания газокапельной струи кочетова
RU2487763C1 (ru) * 2012-03-20 2013-07-20 Олег Савельевич Кочетов Устройство создания газокапельной струи
RU2482926C1 (ru) * 2012-04-27 2013-05-27 Олег Савельевич Кочетов Устройство создания дальнобойной газокапельной струи
RU2533958C1 (ru) * 2013-08-29 2014-11-27 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Струйный насадок водометного движителя
RU2556672C1 (ru) * 2013-12-20 2015-07-10 Игорь Александрович Лепешинский Способ создания газокапельной струи и устройство для его выполнения
RU2548070C1 (ru) * 2014-01-20 2015-04-10 Олег Савельевич Кочетов Способ кочетова создания дальнобойной газокапельной струи и устройство для его осуществления
RU2703858C2 (ru) * 2014-12-12 2019-10-22 Дженерал Электрик Компани Устройство и способ кондиционирования потока жирного газа
RU2576296C1 (ru) * 2015-02-06 2016-02-27 Олег Савельевич Кочетов Вихревой пеногенератор кочетова
RU2622927C1 (ru) * 2016-03-14 2017-06-21 Олег Савельевич Кочетов Пеногенератор кочетова
RU2624110C1 (ru) * 2016-03-18 2017-06-30 Татьяна Дмитриевна Ходакова Пеногенератор
RU2631277C1 (ru) * 2016-05-27 2017-09-20 Олег Савельевич Кочетов Вихревая форсунка кочетова
RU2650124C1 (ru) * 2017-02-22 2018-04-09 Олег Савельевич Кочетов Пневматическая форсунка
RU2645984C1 (ru) * 2017-03-13 2018-02-28 Олег Савельевич Кочетов Пневматическая форсунка
CN108672119B (zh) * 2018-07-04 2024-02-13 浙江精勇精锻机械有限公司 脱模剂自动喷涂装置
EP4132664B1 (en) * 2020-04-10 2024-08-07 JETEX Innovation s.r.o. Fire extinguishing equipment with fire nozzle
FR3115714B1 (fr) 2020-10-30 2024-01-12 Etat Francais Represente Par Le Prefet De Police Agissant Au Nom Et Pour Le Compte De La Ville De Pa Dispositif de generation d’un jet de fluide diphasique

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8419378B2 (en) 2004-07-29 2013-04-16 Pursuit Dynamics Plc Jet pump
US9239063B2 (en) 2004-07-29 2016-01-19 Pursuit Marine Drive Limited Jet pump
US8789769B2 (en) 2006-09-15 2014-07-29 Tyco Fire & Security Gmbh Mist generating apparatus and method
US8193395B2 (en) 2007-05-02 2012-06-05 Pursuit Dynamics Plc Biomass treatment process and system
US8513004B2 (en) 2007-05-02 2013-08-20 Pursuit Dynamics Plc Biomass treatment process

Also Published As

Publication number Publication date
DE59705677D1 (de) 2002-01-17
WO1998001231A1 (fr) 1998-01-15
DK0911082T3 (da) 2002-02-25
PT911082E (pt) 2002-03-28
ES2169406T3 (es) 2002-07-01
EP0911082A1 (de) 1999-04-28
RU2107554C1 (ru) 1998-03-27
ATE209970T1 (de) 2001-12-15
EP0911082A4 (de) 2000-07-26

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