WO2022050789A1 - 연기, 유독가스 흡기 제거형 소방용 노즐장치 - Google Patents
연기, 유독가스 흡기 제거형 소방용 노즐장치 Download PDFInfo
- Publication number
- WO2022050789A1 WO2022050789A1 PCT/KR2021/012033 KR2021012033W WO2022050789A1 WO 2022050789 A1 WO2022050789 A1 WO 2022050789A1 KR 2021012033 W KR2021012033 W KR 2021012033W WO 2022050789 A1 WO2022050789 A1 WO 2022050789A1
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- WIPO (PCT)
- Prior art keywords
- water
- gas
- intake
- smoke
- nozzle device
- Prior art date
Links
- 239000002341 toxic gas Substances 0.000 title claims abstract description 58
- 239000000779 smoke Substances 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 239000007789 gas Substances 0.000 claims abstract description 82
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims description 48
- 239000007924 injection Substances 0.000 claims description 48
- 239000004094 surface-active agent Substances 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 4
- 230000007480 spreading Effects 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 2
- 229940079593 drug Drugs 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 19
- 239000007921 spray Substances 0.000 abstract description 14
- 230000006378 damage Effects 0.000 abstract description 6
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 6
- 239000011261 inert gas Substances 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- 239000004071 soot Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 238000010790 dilution Methods 0.000 abstract description 2
- 239000012895 dilution Substances 0.000 abstract description 2
- 238000004090 dissolution Methods 0.000 abstract description 2
- 239000013618 particulate matter Substances 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 206010003497 Asphyxia Diseases 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 108010036050 human cationic antimicrobial protein 57 Proteins 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- 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
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
-
- 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
- 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
- B05B1/265—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 the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
-
- 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
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/63—Handgrips
-
- 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
- B05B7/0081—Apparatus supplied with low pressure gas, e.g. "hvlp"-guns; air supplied by a fan
- B05B7/0087—Atmospheric air being sucked by a gas stream, generally flowing through a venturi, at a location upstream or inside the spraying apparatus
-
- 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
- B05B7/0425—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 without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
-
- 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
- B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
Definitions
- the present invention relates to a fire-fighting nozzle device, which is one of fire suppression equipment, and more particularly, sprays water and at the same time inhales smoke and toxic gas around it so that the toxic gas is dissolved in water or mixed with water.
- a firefighting nozzle device of a smoke and toxic gas intake removal type which helps firefighters secure their sight, minimizes damage caused by toxic gas, and suppresses fires more efficiently than spraying only water will be.
- a fire-fighting nozzle also called a gwanchang
- a fire-fighting nozzle is mounted on the end of a fire hose and sprays water supplied through the fire hose into a flame.
- fire-fighting nozzles there are various types of fire-fighting nozzles, among which, there are a direct-fired nozzle having a relatively simple structure, a pistol-type nozzle equipped with a handle, a lever, a reflector, etc., and mainly used by firefighters.
- the pistol type nozzle can adjust the spray angle and flow rate of water.
- Korean Patent Registration No. 10-1780221 (fireman's window) has been disclosed.
- the disclosed firefighter window includes an opening and closing member to which a fire hose is connected at the rear end, and a nozzle member connected to the front end of the opening and closing member, wherein the nozzle member includes a nozzle whose rear end is fastened to the front end of the opening and closing member, and the nozzle It includes a cover body supported movably forward and backward, a movable spindle supported movably back and forth with respect to the nozzle while opening and closing the tip of the nozzle, and a rear spring that applies elasticity in a direction to pull the movable spindle rearward with respect to the nozzle,
- the nozzle includes a fixed nozzle fastened to the opening and closing member, and a movable nozzle supported movably forward and backward with respect to the fixed nozzle, the rear spring is installed between the fixed nozzle and the movable spindle, and the movable spindle opens and closes the tip of the movable nozzle, , consists of a front spring that applies elasticity in
- the conventional firefighter window described above has only a mechanical structure that absorbs the recoil of the pipe window when water is sprayed, and does not propose a technology related to removing toxic gas generated in a fire.
- a nozzle device having a structure for removing smoke and toxic gas along with spraying of water is required for securing the sight of firefighters extinguishing fires, saving lives, working efficiency, and personal health of firefighters.
- the present invention was created to solve the above problems, and by sucking and removing smoke and toxic gas from the surrounding area at the same time as water is sprayed, it helps a firefighter to quickly enter the site by securing a view, and the smoke and toxic gas obstruct the view
- the purpose of providing a fire-fighting nozzle device for removing smoke and toxic gas inhalation that can eliminate risks such as injuries from various accidents that occur to people in advance, and that can enter quickly, extinguish a fire, and save lives. There is this.
- the smoke and toxic gas intake removal type firefighting nozzle device of the present invention receives water supplied from a fire hose and sprays it forward through the inner passage, a jet head having a plurality of intake holes that are opened as It is provided with a gas introduction guide that is built into the injection head and guides the inflow gas flowing into the injection head through the intake hole to be mixed with the water by the venturi effect generated by the injection of water.
- the smoke and toxic gas intake removal type firefighting nozzle device of the present invention as a means of solving the problem for achieving the above object is coupled to the end of the fire hose through a hose connection part, and a connection body for receiving and passing water; a hollow slider tube fixed to the front of the connecting body and providing a male thread; a jet head having a plurality of intake holes screwed to the male screw portion of the slider tube and moving forward and backward through a rotational movement; a shaft having one end fixed to the inside of the connection body and extending into the injection head through the slider tube; a deflector that is fixed to the extended end of the shaft and collides with the jetting water in a state located inside the jetting head, so that the spreading angle of the jetting water is adjusted according to the forward/backward movement of the jetting head; It is installed inside the injection head and guides the flow of gas when external gas flows into the injection head through the intake hole by the negative pressure according to the venturi effect generated by water being injected through the injection head. and gas
- the intake holes are equally spaced along the circumferential direction of the injection head, the gas induction means; A hollow member that allows water to pass through.
- a fixing part fixed to the inside of the jet head and the fixing part are integrated with the fixing part and cover the intake hole, but the gas flowing through the intake hole is guided to the outer peripheral surface to guide the water flow field. It has a gas guide.
- the intake hole is arranged at an angle along the circumferential direction of the injection head, the gas induction means;
- a hollow member for passing water which is fixed to the sliding tube and covers the intake hole, and has a gas introduction guide that guides the gas flowing through the intake hole to its outer peripheral surface and sends it to the water flow field.
- a surfactant supply means for injecting a surfactant into the inside of the connection body so that water is mixed with the surfactant and gas to be ejected in a bubbled state is further provided, and it can be used as a drug pickup type foam tube. there is.
- connection body is further provided with a handle gripped by the user, the supply line; One end is exposed to the inside of the connection body, the other end has an inner hose that is opened to the outside of the handle through the hose connection part, is detachably coupled to the hose connection part, and has a supply hose that guides the surfactant to the internal hose, and picks up chemicals. It can be used for both expression foam pipe openings.
- the smoke and toxic gas intake removal type fire-fighting nozzle device of the present invention as a means of solving the problem for achieving the above object is extended in the longitudinal direction and provided with a hose connection part that is coupled with a hammer and a hitting part to be struck by a hammer a hollow pipe type connecting body;
- a piercing that is fixed to the tip of the connecting body and has a number of intake holes formed therein, a piercing that penetrates the object in front when hitting the striking part with a nozzle that is fixed to the perforated casing and ejects water that has passed through the inner space of the perforated casing a jet head having a tip; It is accommodated in the inside of the perforated casing, and includes a gas introduction guide that guides the flow of the gas flowing through the intake hole according to the venturi effect that occurs when water is sprayed so that the gas is mixed with the water.
- the gas introduction guide is fixed to the end of the connection body, and takes the shape of a hollow pipe that covers the intake hole in a state spaced apart from the inner peripheral surface of the perforated casing at regular intervals.
- the smoke and toxic gas intake removal type firefighting nozzle device of the present invention creates a negative pressure at the same time as water is sprayed and uses the negative pressure to suck and remove surrounding smoke and toxic gas, thereby helping firefighters secure their sight. , it is possible to minimize the damage caused by toxic gas.
- the inert gas such as smoke and 78% nitrogen gas (Unaffected Nitrogen) in the toxic gas is sprayed in a mixed state with water, it is possible to suppress a fire more effectively than spraying only water.
- FIG. 1 and 2 are perspective views of a fire fighting nozzle device for removing smoke and toxic gas inhalation according to a first embodiment of the present invention.
- 3 to 6 are views for explaining the internal configuration of the nozzle device shown in FIG.
- FIG. 7 is a view showing a modified example of the nozzle device according to the first embodiment of the present invention.
- FIG. 8 is a perspective view showing a separately enlarged portion A of FIG. 7 .
- 9 to 12 are views for explaining a direct radiation tube window (extinguishing only) of the nozzle device according to the first embodiment of the present invention.
- FIG. 13 is a perspective view of a piercing nozzle device according to a second embodiment of the present invention.
- FIG. 14 and 14B are views separately illustrating a jet head portion of the piercing nozzle device shown in FIG. 13 .
- the fire-fighting nozzle device of the present invention injects water toward a flame and at the same time inhales surrounding smoke and toxic gas, so that the smoke or toxic gas is dissolved in water or mixed with water and applied to the flame. It helps to secure the field of vision, minimizes damage caused by smoke and toxic gases, and can extinguish fires more efficiently than spraying only water. It is to perform two tasks at the same time, extinguishing flames using water and removing smoke and toxic gases.
- the present invention relates to the fact that the pressure inside the jetting head is lowered by the venturi effect while water is jetted through the jetting head, the fact that most of the smoke and toxic gases are dissolved in water with water solubility, and the fact that the smoke, It is based on the fact that although oxygen is insignificant in toxic gas, it is composed of about 78% or more of an inert gas such as nitrogen gas (Unaffected Nitrogen), which is insoluble in water, but suffocates the flame.
- an inert gas such as nitrogen gas (Unaffected Nitrogen), which is insoluble in water, but suffocates the flame.
- a gas intake hole is formed in the injection head. This is because, by forming the intake hole, the surrounding smoke and toxic gas are inhaled, and only when the intake is inhaled, the gas can be dissolved and removed, and nitrogen gas can be applied to the flame. This will be described in detail later.
- the nozzle device of the present invention receives water supplied from a fire hose and sprays it forward through the inner passage, and includes: a spray head having a plurality of intake holes for opening the inner passage to the outside; It has a basic configuration of a gas introduction guide that is built into the jet head and mixes with water by guiding the flow of gas flowing into the jet head through the intake hole by the venturi phenomenon generated by water jetting.
- FIGS. 3 to 6A and 6B are the interior of the nozzle device shown in FIG. It is a drawing for explaining a structure.
- the smoke and toxic gas intake-removing nozzle device 10 includes a connection body 11, a slider tube 19, a jet head 40, a shaft 24, a deflector ( 25), including direct guiding blades 23, and gas guiding means.
- connection body 11 is connected to the fire hose, and has a hose connection part 17 at the rear.
- the end of the fire hose is detachably coupled to the hose connection unit 17 .
- the water supplied through the fire hose passes through the connection body 11, passes through the slider tube 19, the gas induction means, and the injection head 40 in order, and is sprayed forward.
- a lever 15 and a handle 13 are installed at the upper and lower portions of the connection body 11 .
- the lever 15 serves to open or block a ball valve (not shown) built into the connection body 11 . Water can be sprayed through the lever 15 or the spray can be stopped.
- the handle 13 is a part gripped by the user's hand.
- the front end of the connecting body 11 is provided with a screw thread portion (11a). The threaded portion 11a is a portion to which the slider tube 19 is coupled.
- the slider tube 19 is a cylindrical member coupled to the threaded portion 11a, and has a male threaded portion 19a at an end thereof.
- the male screw portion 19a is screwed to a slider tube connection portion 44 to be described later.
- the slider pipe connection part 44 is supported by the slider pipe 19 and can be rotated in both directions.
- the injection head 40 moves forward or backward as it rotates in both directions.
- the inner side of the connecting body 11 and the slider tube 19 is provided with a direct-thread induction blade 23 and a shaft (24).
- the direct guiding vane 23 is a guide wall for straightening the stream line of water toward the jet head 40 .
- the shaft 24 is a round bar-shaped member fixed to the central axis of the slider tube 19 and extended forward, and has a deflector 25 at the extended end. It serves to fix the deflector 25 .
- the deflector 25 is a disk-shaped member that is fixed to the extended end of the shaft and collides with the water jetted through the jetting head.
- connection body 11 The configuration of the connection body 11, the slider tube 19, the shaft 24, the deflector 25, and the direct guiding blade 23 is the same as that of a general fire-fighting nozzle, and thus further description is omitted.
- the injection head 40 is screwed to the male screw portion 19a of the slider tube 19, and can be rotated in the left and right direction by the user.
- the user can rotate the jet head 40 in a clockwise or counterclockwise direction.
- the jetting head 40 advances or retreats, of course.
- the deflector 25 maintains a state fixed to the shaft 24, when the injection head 40 is moved forward or backward, the minimum of the inner peripheral surface 41e of the head with respect to the outer peripheral edge of the deflector 25 There is a change in the interval, and accordingly, the angle of spread of the sprayed water is changed.
- the jet head 40 receives water supplied from the upstream side and ejects it forward, and has a plurality of intake holes 41c open laterally.
- the intake hole 41c is a through hole forming a predetermined interval along the circumferential direction of the injection head 40, and opens the inner space of the injection head 40 to the outside. Water passing through the jet head 40 does not escape to the outside through the intake hole 41c.
- the reason is that the intake hole 41c is covered to some extent by a gas guide portion 21b to be described later, and a negative pressure due to the venturi effect is formed in the injection port 41a of the injection head 40 . When the negative pressure is formed, naturally, external gas is sucked into the injection port 41a through the intake hole 41c.
- a coupling portion 43 and a slider tube connection portion 44 are sequentially fixed to the rear of the jet head 40 .
- the coupling portion 43 is a ring-shaped member having a female thread formed on the inner circumferential surface, and is screwed to the fixing portion 21a of the gas introduction guide 21 .
- the fixing part 21a By coupling the fixing part 21a to the coupling part 43, the gas introduction guide 21 inside the injection head 40 is maintained in a fixed state, as shown in FIGS. 6a and 6b.
- the slider tube connecting portion 44 is fixed to the rear of the engaging portion 43 as a ring-shaped member providing a female screw hole 44a.
- the male screw part 19a is screwed to the female screw hole 44a.
- a gas introduction guide 21 is used as a gas guide means.
- the gas introduction guide 21 is a cylindrical member of a certain diameter fixed to the inside of the injection head 40, and has a fixing part 21a and a gas guide part 21b.
- the fixing part 21a is screwed to the coupling part 43 as a part in which a male thread is formed on the outer circumferential surface.
- the gas guide portion 21b is a portion that covers the intake hole 41c.
- the gas guide portion 21b is spaced apart from the inner circumferential surface 41e of the injection head 40 at regular intervals rather than in close contact to form a gas flow passage 41d.
- the gas flow passage 41d is a passage through which the toxic gas sucked in through the intake hole 41c passes. After passing through the gas flow passage (41d), the toxic gas meets and mixes with the water that has passed through the gas introduction guide (21).
- the formation of negative pressure inside the injection head 40 is due to the venturi effect. That is, this is because the flow cross-sectional area of the water passing through the periphery of the deflector 25 is small compared to the flow cross-sectional area of the water passing through the gas introduction guider 21 .
- the flow cross-sectional area of a fluid when the flow cross-sectional area of a fluid is small, the flow rate increases, and when the flow rate increases, the pressure decreases.
- the flow cross-sectional area around the deflector 25 is significantly smaller than the flow cross-sectional area of the gas introduction guide, the pressure inside the injection head 40 is inevitably lowered. Therefore, the toxic gas outside the injection head 40 passes through the intake hole 41c, passes through the gas flow passage 41d, and is mixed with water (ejected from the gas induction unit 21b) inside the injection head 40 ( mixing) is done.
- the introduced liquid particulate-based toxic gas is dissolved and diluted in water and removed, and solid particulate-based soot, soot, and ultrafine particles are removed. Dust is physically adsorbed and sprayed together, and the remaining nitrogen (N2) gas is sprayed into the flame mixed with water to cool the flame and extinguish it by asphyxiation. About 78% of an inert gas such as nitrogen gas (Unaffected Nitrogen) is applied to the flame by obtaining the kinetic energy of water. This allows for a more rapid fire-fighting than spraying only water. Being able to quickly extinguish a fire without a separate additional device is of great significance.
- FIG. 7 is a view showing a modified example of the nozzle device 10 according to the first embodiment of the present invention
- FIG. 8 is a perspective view showing a separately enlarged portion A of FIG. 7 .
- a surfactant supply means can be added to the fire-fighting nozzle device 10 .
- the surfactant supply means is a device for injecting the surfactant into the connection body 11 .
- water may be mixed with the surfactant and toxic gas and sprayed toward the flame in a bubbled state.
- foam generated by mixing air with an aqueous solution of foaming agent is foamed on fire, and is mainly used for fire suppression in hazardous materials storage, outdoor oil tank, liquefied gas storage, aircraft hangar, chemical plant, etc. It is a well-known fact that it can be used efficiently.
- the surfactant supply means consists of a surfactant tank 51 and a supply line.
- the surfactant tank 51 is a container in which the surfactant is accommodated.
- the surfactant tank 51 can be mounted on a fire engine, and a chemical can be carried as a dedicated container.
- the supply line which guides the surfactant into the connection body 11, is sucked toward the high flow rate by the ejector principle and connects the surfactant in the surfactant tank 51 through the supply hose 55 and the inner hose 56 The body 11 is transferred to the inside.
- the inner hose 56 is a tube built into the handle 13, and one end is exposed to the inside of the connection body 11, and the other end is opened to the outside of the lower end of the handle through the hose connection portion 13b.
- the hose connection part (13b) is a part having a male thread formed on the outer circumferential surface, and as shown in FIG. 8, it is possible to couple with the fixing nut (55a) or the cap (57) of the supply hose (55).
- the fixing nut (55a) When the fixing nut (55a) is connected to the hose connection part (13b), the supply hose (55) and the inner hose (56) are connected in communication. In addition, when the fixing nut 55a is removed from the hose connection part 13b and the cap 57 is fixed in its place, the inner hose 56 is sealed. When the inner hose is not used, the cap (57) is fixed to prevent foreign substances from entering the inner hose (56).
- the nozzle device of the illustrated type is a small nozzle mainly provided inside a fire hydrant of a building as a direct radiation window.
- the nozzle device 10 includes a connecting body 11 , a slider tube 19 , a gas introduction guide 21 , and an injection head 40 .
- the nozzle device 10 of the type shown in FIG. 9 has a simpler structure, and the handle and lever described above are omitted.
- connection body 11 is coupled with the fire hose through the hose connection part 17 to receive and pass water.
- slider tube 19 is fixed to the connection body 11 and rotatably supports the injection head 40 through the male screw part 19a.
- the gas introduction guide 21 takes the shape of a simple hollow pipe and is fixed to the male screw portion 19a of the slider tube 19 .
- the gas introduction guide 21 passes water to the inside and provides a gas flow path 41d to the outside. That is, the gas flowing in through the intake hole is guided to the outer circumferential surface and sent to the deflector 25 side.
- the toxic gas introduced into the intake hole 41c passes through the gas flow passage 41d and is then ejected forward while being mixed with water.
- the principle that the external toxic gas flows into the inside of the injection head 40 is in accordance with the venturi effect described above.
- 9 to 12 are direct radiating windows, which are mainly provided inside a fire hydrant of a building.
- FIG. 13 is a perspective view of a nozzle device according to a second embodiment of the present invention
- FIG. 14 is a view of a fire piercing nozzle separately showing a jet head portion of the nozzle device shown in FIG. 13 .
- the nozzle device 10 has a piercing function, such as a piercing nozzle.
- the piercing nozzle has a function of injecting fire-fighting water into the space through a fire door or wall when a fire occurs inside the blocked space.
- the nozzle device 10 includes a connecting body 11 , an injection head 40 , and a gas introduction guide 21 .
- connection body 11 is a straight hollow pipe extending in the longitudinal direction, and has a striking part 61 and a hose connection part 17 .
- the striking part 61 is a part that strikes with a hammer.
- the tip of the nozzle device 10 that is, the jet head 40 part is placed on the wall, and then the striking part 61 is hit, the nozzle device 10 penetrates the wall as if a nail is pierced.
- the hose connection part 17 is a part to which the fire hose is connected. After penetrating the spray head 40 into the fire space, when water is supplied by connecting a fire hose to the hose connection unit 17, water is sprayed into the fire space.
- the injection head 40 is made of a perforated casing 41 and a piercing tip (63).
- the perforated casing 41 is a cylindrical member having an inner diameter greater than the inner diameter of the connecting body 11 and has a plurality of intake holes 41c around it.
- the intake hole 41c is a passage through which the surrounding toxic gas flows.
- the piercing tip 63 is a member fixed to the perforated casing 41 and has a pointed end portion.
- the piercing tip 63 is provided with a plurality of injection holes (63a).
- the injection hole (63a) is a hole through which water passing through the connecting body 11 and the gas introduction guide 21 is injected.
- the total flow cross-sectional area of the injection port 63a is relatively small compared to the flow cross-sectional area of the gas introduction guide 21 .
- the water passing through the gas introduction guide 21 passes through the injection port 63a and is accelerated.
- the pressure around the injection hole 63a drops, and the venturi phenomenon occurs.
- the gas introduction guide 21 is a hollow pipe of a certain diameter fixed to the end of the connecting body (11).
- the inner diameter of the gas introduction guide 21 is the same as the inner diameter of the connecting body (11).
- the gas introduction guide 21 covers the intake hole 41c in a state spaced apart from the inner circumferential surface of the perforated casing 41 at regular intervals.
- the outer peripheral surface of the gas introduction guide 21 provides a gas flow passage (41d) between the perforated casing and the inner peripheral surface.
- the toxic gas around the injection head 40 passes through the intake hole 41c and the gas flow passage 41d by the venturi effect generated around the injection port 63a during water injection and then the piercing tip 63 ) is released as it mixes with water inside.
- the nozzle device 10 for removing toxic gas intake according to the first and second embodiments configured as described above sprays water and at the same time inhales surrounding smoke and toxic gas, thereby introducing a liquid particulate-based toxic gas is removed by dissolution and dilution in water, solid particulate soot, soot, and ultrafine dust are physically adsorbed, and the remaining nitrogen (N2) gas is mixed with water and flamed It is sprayed to cool the flame and extinguish by suffocation.
- an inert gas such as about 78% nitrogen gas (Unaffected Nitrogen) is applied to the flame by obtaining the kinetic energy of water.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Nozzles (AREA)
Abstract
Description
Claims (8)
- 소방호스로부터 공급되는 물을 받아들여, 내부통로를 통해 전방으로 분사하는 것으로서, 내부통로를 외부로 개방하는 다수의 흡기구멍을 구비한 분사헤드와;분사헤드에 내장되고, 물이 분사됨에 의해 발생하는 벤투리효과에 의해, 흡기구멍을 통해 분사헤드 내부로 유입하는 유입 가스를 가이드 하여 물과 혼합되게 하는 가스도입가이더를 구비하는,연기, 유독가스 흡기 제거형 소방용 노즐장치.
- 호스연결부를 통해 소방호스의 단부와 결합하고, 물을 받아들여 통과시키는 연결바디와;연결바디의 전방에 고정되며 수나사부를 제공하는 중공형 슬라이더관과;슬라이더관의 수나사부에 나사 결합하며 회전운동을 통해 전후진하고, 다수의 흡기구멍을 구비한 분사헤드와;일단부가 연결바디의 내부에 고정되고, 슬라이더관을 통과하여 분사헤드 내부로 연장된 샤프트와;샤프트의 연장단부에 고정되며 분사헤드의 내측에 위치한 상태로 분출하는 물과 충돌하는 것으로서, 분사헤드의 전후진에 따라 분사되는 물의 퍼짐 각도가 조절되게 하는 디플렉터와;분사헤드의 내부에 설치되고, 분사헤드를 통해 물이 분사됨에 의해 발생하는 벤투리효과에 따른 음압에 의해, 외부 가스가 흡기구멍을 통해 분사헤드 내부로 유입할 때, 가스의 흐름을 가이드 하여, 물이 가스와 혼합되게 하는 가스유도수단을 구비한,연기, 유독가스 흡기 제거형 소방용 노즐장치.
- 제2항에 있어서,상기 흡기구멍은, 분사헤드의 원주방향을 따라 등간격을 이루고,가스유도수단은;물을 통과시키는 중공형 부재로서, 분사헤드의 내부에 고정되는 고정부와, 고정부에 일체를 이루고 흡기구멍을 커버하되, 흡기구멍을 통해 유입하는 가스를 그 외주면으로 가이드 하여 물의 유동장으로 안내하는 가스유도부를 갖는,연기, 유독가스 흡기 제거형 소방용 노즐장치.
- 제2항에 있어서,상기 흡기구멍은, 분사헤드의 원주방향을 따라 등각 배치되고,가스유도수단은;물을 통과시키는 중공형 부재로서, 슬라이딩관에 고정되며 흡기구멍을 커버하되, 흡기구멍을 통해 유입하는 가스를 그 외주면으로 가이드하여 물의 유동장으로 보내는 가스도입가이더를 갖는,연기, 유독가스 흡기 제거형 소방용 노즐장치.
- 제2항에 있어서,상기 연결바디의 내부로 계면활성제를 주입하여, 물이 계면활성제 및 가스와 혼합되어 거품화 된 상태로 분출되게 하는 계면활성제 공급수단이 더 구비되고, 약품 픽업식 거품 관창용으로 겸용할 수 있는,연기, 유독가스 흡기 제거형 소방용 노즐장치.
- 제5항에 있어서,상기 연결바디에는, 사용자가 파지하는 손잡이가 더 구비되고,공급라인은;일단부가 연결바디의 내부로 노출되고, 타단부는 호스연결부를 통해 손잡이 외부로 개방된 내부호스와,호스연결부에 분리 가능 하도록 결합하고, 계면활성제를 내부 호스로 유도하는 공급호스를 가지며, 약품 픽업식 거품 관창용을 겸용할 수 있는,연기, 유독가스 흡기 제거형 소방용 노즐장치.
- 길이 방향으로 연장되며, 해머로 타격되는 타격부 및 소방호스와 결합하는 호스연결부를 구비한 중공 파이프형 연결 바디와;연결바디의 선단부에 고정되고 다수의 흡기구멍이 형성되어 있는 타공 케이싱, 타공 케이싱에 고정되며 타공 케이싱의 내부공간을 통과한 물을 분출하는 분사구를 가지고 타격부를 타격할 때 전방의 대상물을 뚫고 들어가는 피어싱 팁을 구비한 분사헤드와;타공케이싱의 내부에 수용되며, 물의 분사 시 발생하는 벤투리효과에 따라 흡기구멍을 통해 유입하는 가스의 흐름을 가이드하여 가스가 물에 혼합되게 하는 가스도입가이더를 포함하는,연기, 유독가스 흡기 제거형 소방용 노즐 장치.
- 제7항에 있어서,상기 가스도입가이더는,연결바디의 단부에 고정되며, 타공케이싱의 내주면에 대해 일정간격으로 이격된 상태로 흡기구멍을 커버하는 중공파이프의 형상을 취하는,연기, 유독가스 흡기 제거형 소방용 노즐장치.
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JP2023515113A JP2023540354A (ja) | 2020-09-04 | 2021-09-06 | 煙、有毒ガス吸気除去型消防用ノズル装置 |
CN202180054850.8A CN116171185A (zh) | 2020-09-04 | 2021-09-06 | 烟雾及有毒气体吸除式消防用喷嘴装置 |
EP21864748.5A EP4209251A4 (en) | 2020-09-04 | 2021-09-06 | SMOKE AND TOXIC GAS SUCTION EXHAUST TYPE FIRE-FIGHTING NOZZLE DEVICE |
US18/024,822 US20230321471A1 (en) | 2020-09-04 | 2021-09-06 | Smoke and toxic gas suction removal-type firefighting nozzle device |
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KR10-2021-0118264 | 2021-09-06 |
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2021
- 2021-09-06 WO PCT/KR2021/012033 patent/WO2022050789A1/ko active Application Filing
- 2021-09-06 JP JP2023515113A patent/JP2023540354A/ja active Pending
- 2021-09-06 US US18/024,822 patent/US20230321471A1/en active Pending
- 2021-09-06 CN CN202180054850.8A patent/CN116171185A/zh active Pending
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