CN1147214A - Method and nozzle for providing flow with separated gas and liquid portions subjected to acoustic field - Google Patents
Method and nozzle for providing flow with separated gas and liquid portions subjected to acoustic field Download PDFInfo
- Publication number
- CN1147214A CN1147214A CN 95192864 CN95192864A CN1147214A CN 1147214 A CN1147214 A CN 1147214A CN 95192864 CN95192864 CN 95192864 CN 95192864 A CN95192864 A CN 95192864A CN 1147214 A CN1147214 A CN 1147214A
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- nozzle
- gas
- delivery outlet
- cylindrical surface
- glm
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water
-
- 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
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0692—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by a fluid
-
- 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
- B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
- B05B7/262—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device
Abstract
A method of providing a gas/liquid jet having finely atomised liquid droplets comprising the steps of feeding a mixture of gas/liquid into a tube (5) provided with at least one outlet nozzle (6) having an outlet opening. A plug flow (i.e. a flow in which liquid portions and gas portions are separate from each other) is formed in the tube (5) before the flow leaves the nozzle (6). The outflowing plug flow is subjected to an acoustic field, the frequency of the plug flow thereof essentially being a multiple of the frequency of the plug flow and preferably close to the frequency thereof.
Description
Technical field
The present invention relates to be used to produce the method and the nozzle of gas/liquid jet, especially relate to (but not being unique) fire extinguishing field, and can be used on portable fire extinguisher and the fixed fire extinguishing system with trickle atomized drop.
Background technology
From " Physical and Chemical bases of the development andextinguishing of fires " book (1980, p.p.182-187, E.M.Abduraimov and Yu.V.Govorov) learn, compare with one-jet that adopts extinguishing fluid or big drip jet, when when thin going out of atomizing liquid sprays in combustion centre, fire extinguishing is renderd a service and can be significantly improved.The raising that fire extinguishing is renderd a service is because the heat exchanging process between droplet and the combustion centre is strengthened.Can cause the temperature of combustion centre to reduce to the fray-out of flame temperature like this, and reduce the consumption of extinguishing fluid.
Therefore, must provide sufficiently high atomization of liquid degree in order to improve fire extinguishing effectiveness.
The whole bag of tricks of atomization fire extinguishing liquid all is known, and the device of implementing these methods also is known.One of effective method of atomized liquid is by a nozzle ejection gas/liquid mixture (to call GLM in the following text), as 1987 in Bulletin of the Invention No.43 disclosed USSR inventors certificate No.135 3444 disclosed.In this case, GLM leaves nozzle to flow higher speed than neat liquid under identical condition.
From " Atomizers of liquids.M., Chemistry " (1979, D.G.Pazhi and V.S.Galustov), can learn that the raising of liquid discharge rate can improve the atomizing to liquid.By the disclosed atomization of liquid method that is used for fire extinguisher of USSR inventor's certificate No.1225585 (being disclosed in Bulletin of theInventions, No.15,1986) is an exemplary of these class methods.Because high gas/liquid ratio and high gas pressure can obtain the higher liquid rate of outflow.
USSR inventor's certificate No.1316713 (being disclosed in Bulletin of the InventionsNo.22,1987-Method ' s Prototype) discloses, and also can obtain higher degree of atomization by the GLM that flows out is applied sound oscillation.This device provides two kinds of fluids, i.e. GLM stream and gas stream.The gas stream that flows out De Laval noz(zle) is injected on special Hartmann's generator that can produce powerful ultrasonic field of installing.The GLM that this ultrasonic field acts on outflow makes drop generation second-time breakage.
But this apparatus structure complexity, and require accommodating fluid and liquid respectively.
That is put down in writing among USSR inventor's certificate No.1316713 (being disclosed in Bulletin of the InventionsNo.22,1987-Method ' s Prototype) passes through the GLM method for extinguishing fire, is considered to the immediate prior art of the inventive method.
One of primary element of any extinguishing device is a nozzle, and the atomization quality of any extinguishing fluid (comprising GLM) depends on structure of nozzle.
USSR inventor's certificate No.1553151 (being disclosed in Bulletin of the InventionsNo.12,1990) has disclosed a kind of device, can produce the vaporific jet of solution-air by GLM with it.This device comprises a shell with a water inlet and an air inlet, one carries out spring-loading deflector by a motion bar, the end that this deflector is installed in this shell is near an exit and this outlet of shutoff, and a mixing chamber that communicates with this outlet and water inlet and air inlet.This mixing chamber is logical by a doughnut and water, leads to this mixing chamber by above-mentioned outlet, and this exports by a cone valve shutoff of fixedlying connected with above-mentioned bar, and helicla flute is arranged in its surface.Air inlet communicates with mixing chamber by the radial hole on a centre gangway and the above-mentioned bar.Liquid from doughnut flows into mixing chamber as single jet.And vertical orientated compressed gas spray enters this mixing chamber and form GLM in mixing chamber.Be subjected to the influence of pressure in the mixing chamber, the deflector plate of above-mentioned bar leaves above-mentioned outlet, and GLM sprays with spray pattern.
The USSR inventor's certificate No.1426643 that is considered to the maximally related prior art of nozzle of the present invention (is disclosed in Bulletin of the Inventions No.36,1988, ApparatusPrototype) disclosed a kind of gas/liquid nozzle, it comprises the chamber of a variable cross-section, and GLM is imported into wherein.Liquids and gases enter first chamber portion and mixing here respectively by gas feed and an air intlet.GLM enters a taper chamber portion by this first chamber portion, enters a spherical chamber portion subsequently again, and an outlet is housed above it, is used for making mixture to flow into atmosphere.When GLM left above-mentioned hole, the expansion of similar blast took place in compressed air, and liquid film is fragmented into vaporific drop.
For the mixture that produces liquids and gases, the frame for movement of said nozzle is too complicated.
Invention is described
The purpose of this invention is to provide and a kind ofly produce the high efficiency method of the dispersed jet with superfine drop with GLM, this method is effective especially when fire extinguishing.
According to the present invention, above-mentioned purpose is to realize by the method that a kind of generation has a gas/liquid jet of superfine atomized drop, this method comprises one of gas and mixtures of liquids input is had step in the pipe of at least one outlet nozzle that an outlet is arranged, it is characterized in that the feature of claim 1 characteristic.
In order to understand the principle of the inventive method, the situation that flows out various GLM from a pipeline that has a nozzle has all been considered.
When gas flow more after a little while, promptly when its mass concentration among the GLM is no more than 0.4% (weight), just form the what is called foaming pattern of gas/liquid flow, promptly bubble (G) roughly is evenly dispersed in the liquid stream (L), referring to Fig. 1.Can be observed static state (pulse free) GLM stream in this case.
When gas content is very high, in the time of on the level of 6% (weight), can be observed false emulsification pattern, drop this moment (L) roughly is evenly dispersed in the gas stream (G), referring to Fig. 2.Also observed static GLM stream this moment.
At last, under certain GLM concentration, particularly when the volume of gas and liquid mutually near the time, and under certain GLM flow pattern (speed, pressure, pipe diameter), can form middle model as shown in Figure 3, i.e. the so-called part or the embolism pattern of mixed flow.Form independent liquid stream part and gas stream part along above-mentioned pipeline this moment, more than the merging of the single drop that causes by surface tension of liquid of two kinds of different pieces form, (be disclosed in Bulletin of the Invetions referring to USSR inventor's certificate No.1184567, No.38,1985).
When adopting such pattern, the GLM of nozzle stream has the pulsation characteristics because of the significant difference of liquids and gases density.Referring to Fig. 3, the frequency of this pulsation depends on L value and flow velocity V.
Just form such GLM stream in the method for the invention, and mass flowing nozzle.
In addition, when GLM plug flow mass flowing nozzle, it is applied a sound field, to form resonance phenomena.For this reason, the frequency of the sound field that is produced is near the ripple frequency of the GLM plug flow that flows out or be its multiple.Therefore, the unexpected influence of gas semiconvection body portion can cause the more effective dispersion or the atomizing of liquid.
As mentioned above, the formation of plug flow can be accomplished in several ways, and for example, selects the suitable gas concentration among the GLM.Outflow along with pulsation GLM under condition of resonance forms sound field, can realize by nozzle of the present invention, or realize by alternate manner, for example by one by sound source independently, the sound field that produces as disclosed Hartmann's generator among acoustic-electric converter or the USSR inventor's certificate No.1316713 realizes.
Nozzle of the present invention comprises a housing, and it forms a chamber and has an inlet and at least two outlets, the feature of its feature such as claim 3 characteristic.
The preferred embodiment of nozzle of the present invention is disclosed among the claim 4-6.
Nozzle with similar basic structure is known (referring to the 90th page of " Atomizers of liquids.-M., Chemistry " 1979, D.G.Pazhi and V.S.Galustov), but they only are used to atomized liquid rather than GLM.Nozzle of the present invention is used for embolism form atomizing GLM.Because resonator or chamber are to form, can produce the very atomization gas of high level/liquid stream between the bottom of above-mentioned little cylinder and the sagittal plane by the outlet opening in this cylinder.When GLM flows out above-mentioned outlet opening, can produce the breakup of drop of following mechanism.On the one hand, drop is broken because of its collision (as the jet collision), on the other hand, drop is subjected to influence that GLM gas partly vibrates and further broken, and the vibration of gas betides in the sealing resonator that forms between the end of above-mentioned little cylinder and the sagittal plane by the outlet opening in this cylinder.
The principle of nozzle of the present invention is as follows:
-formation GLM plug flow;
-this plug flow is divided into two strands;
-one flows through first jet expansion hole;
-another strand entered a resonant chamber before leaving nozzle by second jet expansion hole;
-in this resonant chamber, GLM gas divides energy to be converted to acoustic radiation energy (acoustic energy);
-the acoustic radiation that produced acts on GLM stream and with the breakup of drop.
Because the pulse frequency of the GLM plug flow that flows out equates with acoustic radiation frequency by the gas component energy generation of GLM stream, thereby can realize effective fragmentation to drop.
In existing sound nozzle, sound wave can improve the frequency of liquid surface vibration, and the atomized liquid jet also improves atomizing.Therefore, be subjected to the influence of special emitter vibration, from GLM, forming sound wave in the isolated gas medium, and the liquid film of mass flowing nozzle outlet the sound of this gas stream bestir oneself with under broken (referring to USSR inventor's certificate No.1316713).In the present invention, the sound vibration source is the GLM gas componant, and sound to shake be to betide in the nozzle chambers of sealing in the autoexcitation mode, and act on the impact zone of gas/liquid flow.
The accompanying drawing summary
Below in conjunction with concrete preferred embodiments and drawings the present invention is illustrated in greater detail, wherein
Illustrating of Fig. 1 GLM stream foaming pattern;
Illustrating of the false emulsification pattern of Fig. 2;
Illustrating of Fig. 3 part or embolism pattern;
Fig. 4 is used to realize the illustrating of device of the inventive method;
The schematic diagram of first embodiment of Fig. 5 nozzle of the present invention;
The schematic diagram of second embodiment of Fig. 6 nozzle of the present invention, wherein, the bottom of resonator is an improved;
Fig. 7 adopts the schematic diagram of fire-fighting efficiency relation of the present invention.
Implement best mode of the present invention
The device that is used to implement the inventive method shown in Figure 4 comprises, one one end stretches into the pipe 2 in the liquid of container 1.The other end of this pipe links to each other with a mixing arrangement or a chamber 3 that is used for mixing material and gas.Gas is transported to mixing arrangement 3 by managing 20 from filling gas containers 4, on the pipe 20 valve 7 is housed, and is used to regulate the gas flow that flows to mixing arrangement 3.In addition, this device comprises an efferent duct 5, and the one end links to each other with mixing arrangement 3, at its other end a nozzle 6 is housed.At last, be communicated with liquid container 1 and gas container 4, on the pipe 21 valve 8 be housed and be used to regulate the gas flow that flows to liquid container by a pipe 21.
This device is worked in the following manner:
Under the effect of the gases at high pressure of 4 li of gas containers, extinguishing fluid is exported from container 1 and is delivered to mixing arrangement 3 along pipe 2, here liquid with mix from managing 20 effluent airs.Flow through efferent duct 5 and enter nozzle 6 and go out of gas/liquid mixture (GLM) from this nozzle ejection with the plug flow form.The fluid that flows out is subjected to the effect of frequency sound field identical with this plug flow frequency, thereby forms the drip jet of a mistization.Nozzle 6 is made into the form that can produce sound field as described below.
Nozzle 6 (referring to Fig. 5) comprises one by a big cylindrical portion with big cylindrical 9 16 with the cavity with two different pieces that the little cylindrical portion 17 of a little cylindrical 10 forms.16,17 two parts are interconnected by an annular wall 19.Loculus body portion 17 is sealed by end wall 18, thereby forms a little cavity 14.The inner surface 13 of this end wall is flat.On annular wall 19, be provided with axial delivery outlet 11, be provided with radially outlet opening 12 in little cylindrical portion 17.Described radial hole 12 is located at apart from end wall 18 distances and is the position of h, so that form a resonant chamber 14 there.In this resonant chamber, the energy of GLM gas part is converted to the acoustic radiation (acoustic energy) that acts in the above described manner on the GLM that flows out delivery outlet.
On the inner surface 9 of described nozzle, be provided with screw thread 15, be used for nozzle 6 is fixed on efferent duct 5, and the outer surface of major part part 16 be a hexagon.
The inner surface 13 that should be pointed out that end wall 18 can be the shape beyond the plane.See Fig. 5, the inner surface 13 of end wall 18 is to be made of an end mill(ing) cutter processing, and in Fig. 6, this inner surface 13 is to be made of a common boring, so this end face is taper.Evidence, the function of this nozzle does not depend on the interior shape of end wall 18, and finishes the existence of depending on resonator or chamber 14.
Gas/liquid nozzle among Fig. 5 is worked in the following manner:
The GLM of this moment is the water that mixes with carbonic acid, flow to nozzle at pressurization lower edge efferent duct 5, and flows into the cavity of big cylindrical 9 with the plug flow form.Part plug flow leaves nozzle by axial hole 11 with the pulsing jet form.Meanwhile, capacitor 14 plays the effect of resonator, and therefore, the part of fluid is left radial hole 12 with the pulsing jet form.Because the delivery outlet 11 in every pair of hole and 12 axis are arranged in same plane, every pair of gas/liquid jet bumps, thereby forms trickle drop.Meanwhile, the sound field that is partly formed by GLM gas acts on the jet of outflow in the impact zone of jet, cause the further breakup of drop.
O.M.Kurbatsky a.o. disclosed standard conditions in " Method of Evaluation of five-fightingability of fire extinguishers " literary composition are used to test method of the present invention, adopt designs of nozzles shown in Figure 5.The combustion centre of " 13B " type is used as combustion centre, and it comprises that an area that fills 13 liters of combustibles A-76 gasoline is 0.41m
2Circular steel disk, see the 8-10 page or leaf for details.
Test is to carry out on a device according to the principle design of device shown in Figure 4, and this device has a container that contains the liquid of 200 liters (MIITP-200) and 2 liters (OBM-2) respectively.Regulate the gas concentration among the GLM, and employing has the nozzle (see figure 5) of different resonators 14 degree of depth h.
Fire-fighting efficiency E, the ratio that can be used as burning area S and the mass M of the water that is used to put out a fire carries out quantitative assay, for example, E=S/M (rice
2/ kilogram).Provided the result who measures with MIITP-200 and OBM-2 in table 1 and the table 2 respectively, wherein.Fire-fighting efficiency E and attack time t are that the degree of depth h according to gas concentration r resonant cavity among the GLM or chamber 14 represents.
The result who provides in the table shows, has optimal gas concentration range and optimum depth h of GLM, can obtain the obvious raising of E and the minimizing of t when this optimum value.
Table 1
| Fire-fighting efficiency, rice 2/ kilogram; Second | |||||
| N | The resonator degree of depth (h), millimeter | Gas concentration % | |||
| 0.4 | 2.0 | 4.0 | 5.0 | ||
| 1 | 3.0 | 0.12；9.0 | 0.20；5.0 | 0.25；5.0 | 0.28；4.0 |
| 2 | 5.0 | 0.11；10.0 | 0.22；5.0 | 0.24；5.0 | 0.25；5.0 |
| 3 | 8.0 | 0.11；11.0 | 0.40；3.0 | 0.38；3.0 | 0.36；3.0 |
| 4 | 10.0 | 0.10；11.0 | 0.25；5.0 | 0.28；4.0 | 0.28；4.0 |
Table 2
| Fire-fighting efficiency, rice 2/ kilogram; Second | |||||
| N | The resonator degree of depth (h), millimeter | Gas concentration % | |||
| 0.4 | 2.0 | 4.0 | 5.0 | ||
| 1 | 1.0 | Do not extinguish | 0.25；16.0 | 0.26；15.0 | 0.28；14.0 |
| 2 | 2.0 | Do not extinguish | 0.40；10.0 | 0.38；11.0 | 0.36；12.0 |
| 3 | 4.0 | 0.22；18.0 | 0.42；9.0 | 0.40；10.0 | 0.38；11.0 |
| 4 | 6.0 | Do not extinguish | 0.26；15.0 | 0.26；15.0 | 0.25；16.0 |
For MIITP-200, the optimal gas concentration range is approximately 2-35, optimum value h=8mm, and for OBM-2, the gas concentration scope is identical, but the h value is about 2-3mm.
GLM plug flow flow nozzle with above-mentioned gas concentration, it is to provide with the vibration mode with the efferent duct of GLM input nozzle.Because the diameter of MIITP-200 efferent duct and OBM-2 efferent duct differs from one another, so the GLM plug flow that flows out also differs from one another.It is poor that the geometric parameter of resonator 14 produces corresponding resonance.
Similarly test with an OBM-10 device with 10 premium on currency.Provide above-mentioned test result (referring to Fig. 7) with curve form, fire-fighting efficiency E is as the function of gas concentration r, resonator degree of depth h and pressure P among the GLM.In the r of 0.6-2.0 scope, occurring an E during h=5mm increases, and this is typical resonance phenomena.With the curve that h=2mm gave is compared, this point is obvious especially.Under a kind of situation in back, such resonator degree of depth can not cause the generation with the vibration resonance of the GLM plug flow frequency dependence of flow nozzle, only can cause the even raising of fire-fighting efficiency E owing to the gas componant among the GLM.
Therefore, the experiment of being carried out has shown the advantage that is obtained by extinguishing device of the present invention, specifically, compares with existing apparatus, can obtain significantly improve (at least 1.5 times) of fire-fighting efficiency.For relatively, figure 7 illustrates the fire-fighting efficiency of dry powder extinguisher (OM-10).
Adopting mainly is the test shows of being undertaken by the diameter of the GLM efferent duct various extinguishing devices different with GLM pressure, the embolism shape pattern that can provide GLM to flow out, and can select the size of nozzle resonator, so that the extinguishing fluid drop superfine that flows out because of resonance phenomena is fractured into.Therefore, in other test, can obtain splendid result when the flow velocity in efferent duct 5 is 3～10 meter per seconds, forming frequency is the plug flow of 25～50KHz.
Claims (6)
1. a generation has the method for the gas/liquid jet of microatomization drop, comprise that a kind of gas and mixtures of liquids are delivered to one has the step that at least one has the delivery nozzle of delivery outlet, it is characterized in that, before fluid leaves this nozzle, in described pipe, form plug flow (that is: wherein the gentle body portion of liquid part is the fluid that is separated from each other), and acted on the plug flow of outflow with the sound field that a frequency is substantially plug flow frequency several times.
2. the method for claim 1 is characterized in that, the frequency of the described sound field frequency with plug flow substantially is identical.
3. nozzles that use in conjunction with claim 1 or 2, comprise that one forms a chamber and an input hole arranged and at least two delivery outlets (11,12) housing, it is characterized in that, this nozzle chambers is by cylindrical surface (9 in the different described housing of two diameters coaxial, 10) form, annular surface and two cylindrical surfaces (9,10) a end is connected, this annular surface is arranged on the annular wall (19) of described housing, basal surface (13) at small cylindrical surface (10) one ends faces toward described annular surface, and the end of great circle cylindrical surface (9) is facing to the annular surface that constitutes the nozzle input hole, this nozzle also comprises at least one pair of delivery outlet, first delivery outlet (11) is located on the annular wall (19), and second delivery outlet (12) is arranged on the part that housing constitutes above-mentioned small cylindrical surface (17) described delivery outlet (11,12) have and hand over and axis, between the opening (12) on basal surface (13) and small cylindrical surface (17), form a resonator (14).
4. nozzle as claimed in claim 3 is characterized in that, the axis of every pair of delivery outlet (11,12) is arranged on the mutual sagittal plane by described cylindrical surface axis.
5. as the nozzle of claim 3 or 4, it is characterized in that, the axis of the delivery outlet (11) on described annular wall (19) is parallel to cylindrical surface (9,10) axis distributes, and the axis of the delivery outlet (12) on the part on the formation small cylindrical surface (10) of described housing is radially-arranged.
6. as each described nozzle among the claim 3-5, it is characterized in that, respectively in described annular wall (19) with constitute the delivery outlet that is provided with respectively on the housing parts on small cylindrical surface (10) between some homogeneous phases to (11,12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU94008979 | 1994-03-10 | ||
| RU94008979/12A RU2074544C1 (en) | 1994-03-10 | 1994-03-10 | METHOD FOR FIRE FIGHTING A GAS-LIQUID MIXTURE AND A GAS-LIQUID NOZZLE FOR ITS IMPLEMENTATION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1147214A true CN1147214A (en) | 1997-04-09 |
Family
ID=20153535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95192864 Pending CN1147214A (en) | 1994-03-10 | 1995-01-10 | Method and nozzle for providing flow with separated gas and liquid portions subjected to acoustic field |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0749360A1 (en) |
| JP (1) | JPH09509882A (en) |
| CN (1) | CN1147214A (en) |
| AU (1) | AU1661895A (en) |
| BR (1) | BR9507019A (en) |
| CA (1) | CA2185143A1 (en) |
| FI (1) | FI963536A (en) |
| RU (1) | RU2074544C1 (en) |
| WO (1) | WO1995024274A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019252A (en) * | 2010-06-01 | 2011-04-20 | 陈尚文 | Gas atomizing and spraying device |
| CN105499047A (en) * | 2016-01-22 | 2016-04-20 | 苏州市计量测试研究所 | Novel aerosol atomizing device |
| CN107743581A (en) * | 2015-02-12 | 2018-02-27 | 齐特纳有限公司 | The apparatus and method for managing the particle to be alignd with sound field in free-falling drop |
| CN114225275A (en) * | 2021-12-24 | 2022-03-25 | 蓝菁(上海)安全技术有限公司 | Method for improving atomization capability of spray head and reducing spray noise and spray head |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0798019A1 (en) * | 1996-03-30 | 1997-10-01 | Minimax GmbH | Method and device for the atomisation of a liquid fire extinguishing agent in a stationary fire extinguishing plant |
| US6044910A (en) * | 1997-03-26 | 2000-04-04 | Asea Brown Boveri Ag | Mixing device for fluids |
| NL1008969C2 (en) * | 1998-04-23 | 1999-10-26 | H T Research B V | Water based fire extinguisher with two gas bottles uses one gas bottle to propel water and the other to form flow of water into fine spray |
| EP1078653A1 (en) | 1999-08-24 | 2001-02-28 | Asea Brown Boveri Ag | Device for inserting an inert gas in a fire extinguishing agent |
| DE50111557D1 (en) * | 2001-09-15 | 2007-01-11 | Siemens Schweiz Ag | Process for fire extinguishing and extinguishing system |
| GB2386835B (en) | 2002-03-28 | 2005-04-27 | Kidde Plc | Fire and explosion suppression |
| EP1454658B1 (en) | 2003-03-04 | 2008-03-19 | Linde Aktiengesellschaft | Method and system for fire suppressing |
| PL221050B1 (en) * | 2010-01-12 | 2016-02-29 | Telesto Spółka Z Ograniczoną Odpowiedzialnością | Device for regulating the two-phase flow and portable fluid atomizer with two-phase fluid flow |
| DE102010022789A1 (en) * | 2010-06-04 | 2011-12-08 | Hne Technologie Ag | Water / foam fire extinguisher with adjustable foam consistency |
| WO2012177245A1 (en) | 2011-06-22 | 2012-12-27 | Utc Fire & Security Corporation | Effervescent fire suppression |
| US20140304960A1 (en) * | 2011-10-14 | 2014-10-16 | Utc Fire & Security Corporation | Method of installing misting fire suppression sprinklers into a building previously containing at least one other type of sprinkler |
| RU2551067C1 (en) * | 2014-06-09 | 2015-05-20 | Общество с ограниченной ответственностью "НПО ЭТЕРНИС" | Sprinkler for dispersion of fire extinguishing liquid of fire extinguishing unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB629335A (en) * | 1946-05-20 | 1949-09-16 | Thompson Wilson Burnam | Fog nozzle for fire hoses |
| GB629365A (en) * | 1946-05-24 | 1949-09-19 | Thompson Wilson Burnam | Fire extingishing nozzle and distributor head |
-
1994
- 1994-03-10 RU RU94008979/12A patent/RU2074544C1/en active
-
1995
- 1995-01-10 BR BR9507019A patent/BR9507019A/en not_active Application Discontinuation
- 1995-01-10 WO PCT/DK1995/000015 patent/WO1995024274A1/en not_active Application Discontinuation
- 1995-01-10 CN CN 95192864 patent/CN1147214A/en active Pending
- 1995-01-10 AU AU16618/95A patent/AU1661895A/en not_active Abandoned
- 1995-01-10 CA CA 2185143 patent/CA2185143A1/en not_active Abandoned
- 1995-01-10 EP EP95908201A patent/EP0749360A1/en not_active Ceased
- 1995-01-10 JP JP7523162A patent/JPH09509882A/en active Pending
-
1996
- 1996-09-09 FI FI963536A patent/FI963536A/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019252A (en) * | 2010-06-01 | 2011-04-20 | 陈尚文 | Gas atomizing and spraying device |
| CN102019252B (en) * | 2010-06-01 | 2013-02-20 | 陈尚文 | Gas atomizing and spraying device |
| CN107743581A (en) * | 2015-02-12 | 2018-02-27 | 齐特纳有限公司 | The apparatus and method for managing the particle to be alignd with sound field in free-falling drop |
| US10871437B2 (en) | 2015-02-12 | 2020-12-22 | Cytena Gmbh | Apparatus and method for dispensing particles in free-flying drops aligned using an acoustic field |
| CN105499047A (en) * | 2016-01-22 | 2016-04-20 | 苏州市计量测试研究所 | Novel aerosol atomizing device |
| CN114225275A (en) * | 2021-12-24 | 2022-03-25 | 蓝菁(上海)安全技术有限公司 | Method for improving atomization capability of spray head and reducing spray noise and spray head |
Also Published As
| Publication number | Publication date |
|---|---|
| RU94008979A (en) | 1997-02-27 |
| FI963536A0 (en) | 1996-09-09 |
| RU2074544C1 (en) | 1997-02-27 |
| EP0749360A1 (en) | 1996-12-27 |
| FI963536A (en) | 1996-09-09 |
| BR9507019A (en) | 1997-09-09 |
| AU1661895A (en) | 1995-09-25 |
| JPH09509882A (en) | 1997-10-07 |
| CA2185143A1 (en) | 1995-09-14 |
| WO1995024274A1 (en) | 1995-09-14 |
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