WO2006043738A1 - Buse de pulverisation d'eau anti-incendie - Google Patents

Buse de pulverisation d'eau anti-incendie Download PDF

Info

Publication number
WO2006043738A1
WO2006043738A1 PCT/KR2004/003361 KR2004003361W WO2006043738A1 WO 2006043738 A1 WO2006043738 A1 WO 2006043738A1 KR 2004003361 W KR2004003361 W KR 2004003361W WO 2006043738 A1 WO2006043738 A1 WO 2006043738A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
water mist
nozzle
mist nozzle
fire
Prior art date
Application number
PCT/KR2004/003361
Other languages
English (en)
Inventor
Kwang-Il Joo
Original Assignee
Tank Tech Co., Ltd.
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 Tank Tech Co., Ltd. filed Critical Tank Tech Co., Ltd.
Publication of WO2006043738A1 publication Critical patent/WO2006043738A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • 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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/16—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for preventing non-intended contact between spray heads or nozzles and foreign bodies, e.g. nozzle guards

Definitions

  • the present invention relates, in general, to water mist nozzles for fire fighting an more particularly, to a water mist nozzle for fire fighting which is capable of initially extinguishing oil fires occurring in the engine room of ships and exhibits superior fire extinguishing performance regardless of the mounting height of the water mist nozzle
  • halogen was greatly used as an agent for fire fighting.
  • use ⁇ the halogen chemical has been prohibited due to environmental problems. Therefore, recently, clean agent and water are used as fire extinguishing system.
  • th system of using sprinklers which are generally arranged on ceilings for spraying fire extinguishing water, represent a large percentage of automatic fire extinguishing systems to rapidly detect fires and dscharge water.
  • water-mist fire extinguishing systems have been proposed.
  • sprayed water is changed into vapor by the heat of the fire, and thus, increases in volume. Therefore, the density of oxygen around fire is rapidly reduced.
  • the generation of vapor prevents radiant heat of the fires from being transferred to surrounding materials, particularly inflammable materials.
  • the water-mist fire ex ⁇ tinguishing systems can stably and rapidly extinguish fires.
  • the wati mist fire extinguishing systems spray misted water, they are capable of extinguishing the fires using a relatively small droplet.
  • subsidary damage due to the great amount of water is reduced compare with sprinkler.
  • the construction and rm ufacturing costs of the water-mist fire extinguishing systems would be reduced.
  • the present invention has been made keeping in mind the above- mentioned problems occurring in the prior art, and an object of the present invention i to provide a water mist nozzle for fire fighting which uses low pressure to extinguish fire appropriate to the type of fire, thus being easy to design, manufacture, construct, maintain and repair, and which sprays fire extinguishing water as mist, thereby minimizing the consumption of water, efficiently intercepting heat radated from a fir ⁇ and reducing dust generated at the scene of the fire.
  • the present invention provides a water mist nozzle for fire fighting which sprays water from a chamber defined in the water mist nozzle to an outside through a plurality of passages.
  • the water mist nozzle includes a nozzle body comprising a hexagonal body part, a conical body part and an external thread part, with an orifice provided on the nozzle body to communicate with the chamber; an adaptor to engage with the external thread part of the nozzle body an( comprising a plurality of guides extendng forwards; and a ring placed inside and supported by the plurality of guides.
  • the orifice of the nozzle body may be formed on an outer circumferential surface of the conical body part, having a frustum shape, at an acute spray angle nearly per- pendcular to the longitudnal axis of the nozzle body.
  • the water mist nozzle can extinguish a fire using a single fluid (water) at a low pressure of about 12 bar, unlike conventional water mist nozzle: using water under high pressure of about 50-200 bar or using two kinds of fluids, sue as gas and water.
  • the water mist nozzle of the present invention ef ⁇ ficiently extinguishes general fires in addtion to IMW (megawatt) to 6MW oil fires.
  • the water mist nozzle can extinguish fires occurring in a large space as well as a small space in an early stage.
  • FlG. 1 is an exploded perspective view of a water mist nozzle, accordng to an embodment of the present invention
  • FIG. 2 is an exploded sectional view of the water mist nozzle of FlG. 1 ;
  • FIG. 3 is a sectional view showing the assembly of the water mist nozzle of FlG.
  • FlG. 4 is a front view of the water mist nozzle of FlG. 3;
  • FlG. 5 is a view showing operation of the water mist nozzle of FlG. 3.
  • FlG. 1 is an exploded perspective view of a water mist nozzle, accordng to an embodment of the present invention.
  • FlG. 2 is an exploded sectional view of the watt mist nozzle of FlG. 1.
  • the present invention provides the water mist nozzle for fire fighting which spray water from a chamber 12 defined in the water mist nozzle to the outside through a plurality of passages.
  • the water mist nozzle has a structure in which a nozzle body 10, an adaptor 20 and a ring 30, which are main elements, are assembled together.
  • the nozzle body 10 is mounted on a ceiling.
  • the terms 'forward' and 'downward' mean the downward direction of the nozzle body 10 in a state of being mounted on a ceiling.
  • the nozzle body 10 of the present invention includes a hexagonal body part 11, a conical body part 15 and an external thread part 18 which are integrated into a single body.
  • a plurality of orifices 16 is provided on the nozzle body 10 to communicate wit the chamber 12.
  • the shape of the hexagonal body part 11 facilitates installing the nozzle body 10 to a fire fighting pipe using a wrench.
  • an internal thread 14 is provided in the chamber 12 on an inner surface of the hexagonal body pai 11 (see, FIG. 2).
  • the conical body part 15 has a frusto-conical shape wherein the dameter decreases from the rear to the front and an apex part is removed from a front end thereof.
  • the outer thread part 18, provided between the hexagonal body part 11 and the conical body part 15, serves to couple the adaptor 20 to the nozzl body 10.
  • the adaptor 20 of the present invention engages with the external thread part 18 o the nozzle body 10.
  • the adaptor 20 has a plurality of guides 22 which extend forward
  • the guides 22 are formed by cutting predetermined portions of a front part of the adaptor 20 having a cylindrical shape.
  • the adaptor 20 with the guides 22 may be formed through an injection moldng process.
  • the guides 22 must have sufficient strength to support therein the ring 30 without being undesirably moved and to withstand the pressure of water sprayed through the orifices 16.
  • four guides 22 are shown, but the number of guides 22 may be determined according to the objects that must be protected from fire.
  • each guide 22 has a minimized width in order not to interfere with the water spraying.
  • the adaptor 20 which is removed from the nozzle body 10 and simply modified according to a connection type, can be used in an existing fire pipe line.
  • the ring 30 is placed inside and supported b the plurality of guides 22 of the adaptor 20.
  • the ring 30 may have an elliptical or angled cross-section, but does not have a circular cross-section.
  • a support groove 24 is formed at the same position on an inner surface of each guide 22.
  • Each support groove 24 has a semicircular cross-section to soundly receive thereii
  • FIG. 3 is a sectional view showing assembly of the water mist nozzle of the prese invention.
  • FIG. 4 is a front view of the water mist nozzle of the present invention shown in FlG. 3.
  • Each of the orifices 16 of the nozzle body 10 is formed on an outer circumferentia surface of the conical body part 15, having the frustum shape, at an acute spray angle (A) nearly perpendcular to a longitudinal axis of the nozzle body 10. Due to this structure, water passing through the chamber 12 is turned by the orifices 16 in a direction nearly perpendcular to its direction when passing through the chamber 12, s( that the water becomes turbulent. Although eight orifices 16 are provided in the embodment of the present invention, the number of orifices 16 may be changed accordng to the type of objects that must be protected from fire.
  • the orifices 16 are arranged such that the water spraying drection of each orifice 16 is not aligned with the guides 22, thus preventing sprayed water from impacting against the guides 22.
  • FlG. 5 is a view showing operation of the water mist nozzle of the present invention.
  • a detector detects senses the fire, so that a pump or pressure vessel is operated. Then, water is supplied at a rated pressure to the camber 12 of the nozzle body 10 arranged around the fire. Thereafter, the water is sprayed to the outsid through the orifices 16 under a rated pressure. At this time, the jets of water impact against the ring 30, so that the water becomes mist. The mist easily reaches the fire, although the fire is far away at a long dstance from the water mist nozzle or in a plac ⁇ in which there are many obstacles. As well, the misted water absorbs dust generated £ the scene of the fire, and drops to the ground, thus not interfering with the vision of persons who are at the scene of the fire.
  • the proportion of the amount of water being sprayed upwards and downwards car be controlled by changing the position of the ring 30.
  • the position of the ring 30 with respect to the orifices 16 can be controlled by changing the position of each support groove 24, the length of each guide 22 and the length of the adaptor 20.
  • the position of the ring 3C with respect to the orifices 16 is controlled by the number of shims.
  • the water mist nozzle of the present invention when a fire occurs, a single fluid, that is, water supplied from a fire hydrant or a water source, is sprayed as mist. Therefore, the water mist nozzle of the present invention can efficiently extinguish general fires in addition to o fires by using water at relatively low pressure. In addtion, the water mist nozzle can efficiently extinguish electrical fires and, simultaneously, minimize subsidiary problems. Furthermore, because the water mist nozzle uses water which is easily obtained anywhere, it is unnecessary to recharge the water, unlike conventional expensive fire extinguishing devices using special material (foam, Co , halon). Ac ⁇ cordingly, the water mist nozzle of the present invention reduces maintenance costs and is free from worry about environmental pollution.
  • a mesh type filter may be provided in the chamber 12 between tl nozzle body 10 and the adaptor 20 to prevent the orifices 16 from clogging due to impurities.
  • the mesh type filter has a hemispherical shape to increase the filter surface area, thus filtering impurities throughout a wide surface area.
  • the present invention provides a water mist nozzle for fire fighting which is capable of initially extinguishing oil fires caused in the engine room of ships and exhibits superior fire extinguishing performance although the water mist nozzle is mounted on the ceiling of large space.
  • the water mist nozzle of the present invention uses water at low pr essure, thus simplifying the design, manufacturing and construction processes thereof and being convenient to maintain.
  • the water mist nozzle sprays water aftei misting the water, thus minimizing the consumption of water, efficiently intercepting heat radated from a fire, and reducing dust generated at the scene of the fire.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

La présente invention concerne une buse de pulvérisation d'eau anti-incendie d'une efficacité supérieure quelle que soit sa hauteur de montage. La buse de pulvérisation d'eau vaporise l'eau à partir d'une chambre interne (12) via une pluralité de passages. Ladite buse (10) comprend un corps de buse (10) avec une partie hexagonale (11), une partie conique (15) et une partie extérieure filetée (18), le corps de buse comportant un orifice (16) qui communique avec la chambre (12). De plus, la buse de pulvérisation d'eau (10) comprend un raccord (20) qui se visse sur la partie extérieure filetée (18) et qui possède une pluralité de guides (22). La buse comporte en outre une bague (30) disposée à l'intérieur et qui est maintenue par la pluralité de guides (22).
PCT/KR2004/003361 2004-10-21 2004-12-20 Buse de pulverisation d'eau anti-incendie WO2006043738A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2004-0084504 2004-10-21
KR1020040084504A KR100597692B1 (ko) 2004-10-21 2004-10-21 소방용 미분무수 노즐

Publications (1)

Publication Number Publication Date
WO2006043738A1 true WO2006043738A1 (fr) 2006-04-27

Family

ID=36203138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/003361 WO2006043738A1 (fr) 2004-10-21 2004-12-20 Buse de pulverisation d'eau anti-incendie

Country Status (2)

Country Link
KR (1) KR100597692B1 (fr)
WO (1) WO2006043738A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009132867A1 (fr) * 2008-05-02 2009-11-05 Fogtec Brandschutz Gmbh & Co. Kg Corps de buses d’extinction
US20120279730A1 (en) * 2009-12-14 2012-11-08 Prevent Systems As Fire extinguishing assembly for transforming a liquid to a liquid mist
US10751558B2 (en) 2014-02-06 2020-08-25 Performance Advantage Company, Inc. Universal nozzle connector with an adjustable mount

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101596578B1 (ko) 2014-05-16 2016-02-22 사단법인 한국화재보험협회 방사각도 조절이 가능한 소방용 미분무수 분사노즐

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE917890C (de) * 1951-03-02 1954-09-13 Ferdinand Schenk Strahlrohrmundstueck fuer Feuerloeschzwecke
US5893418A (en) * 1997-12-15 1999-04-13 The Reliable Automatic Sprinkler Co., Inc. Sprinkle guard

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6443372B1 (en) 2000-12-12 2002-09-03 Tsao-Hui Hsu Adjustable sprinkler nozzle
US6769633B1 (en) 2003-04-15 2004-08-03 Chien-Lung Huang 360-degree sprinkler head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE917890C (de) * 1951-03-02 1954-09-13 Ferdinand Schenk Strahlrohrmundstueck fuer Feuerloeschzwecke
US5893418A (en) * 1997-12-15 1999-04-13 The Reliable Automatic Sprinkler Co., Inc. Sprinkle guard

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009132867A1 (fr) * 2008-05-02 2009-11-05 Fogtec Brandschutz Gmbh & Co. Kg Corps de buses d’extinction
US20120279730A1 (en) * 2009-12-14 2012-11-08 Prevent Systems As Fire extinguishing assembly for transforming a liquid to a liquid mist
US9573006B2 (en) * 2009-12-14 2017-02-21 Prevent Systems As Fire extinguishing assembly for transforming a liquid to a liquid mist
US10751558B2 (en) 2014-02-06 2020-08-25 Performance Advantage Company, Inc. Universal nozzle connector with an adjustable mount

Also Published As

Publication number Publication date
KR20060035149A (ko) 2006-04-26
KR100597692B1 (ko) 2006-07-05

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