CN1219140A - Nozzle - Google Patents
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- CN1219140A CN1219140A CN97194812A CN97194812A CN1219140A CN 1219140 A CN1219140 A CN 1219140A CN 97194812 A CN97194812 A CN 97194812A CN 97194812 A CN97194812 A CN 97194812A CN 1219140 A CN1219140 A CN 1219140A
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- Prior art keywords
- nozzle
- liquid
- chamber
- shell
- fire
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- 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
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- 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
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- 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
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
- B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
- B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
- B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
- B05B1/3442—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cone having the same axis as the outlet
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- 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)
- Percussion Or Vibration Massage (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
A nozzle (2) for spraying liquid having a housing (6), swirl chambers (8) and swirl jets (10) provided in the swirl chambers (8). The housing (6) is provided with outlet orifices (12) corresponding to each swirl chamber (8). Liquid delivered to the nozzle travels into the swirl chambers (8) and is atomised by the swirl jets (10) and results in the liquid being sprayed from the outlet orifices (12) as a mist.
Description
Technical field
The present invention relates to a kind of nozzle.
This nozzle of the present invention has special purposes (although not being unique purposes), promptly is used to use the not extinguishing device of flammable liquid (as water) fire extinguishing (comprising category-A, category-B and C class fire).
The category-A fire is by fibre fuel, is the fire that main fuel causes as timber, paper and cloth.The category-B fire is by hydrocarbon, is the fire that main fuel causes as chemicals, oil and oils.C class fire is an electrical fire.
Background technology
In fire extinguishing, well-known, the sustained combustion of fire has three key elements.These three key elements are heat, oxygen and fuel.Fig. 1 shows the relation of these three elements.When fire extinguishing, the fire extinguishing personnel will get rid of key element in the burning three elements at least.Usually, water, Ha Long or carbon dioxide are three examples that can be used as extinguishing chemical.The fire extinguishing effect of water is to take away heat from fuel, and the effect of carbon dioxide is that oxygen is isolated.
Another characteristics of burning are flame chain reactions, shown in the triangle in Fig. 1 circle.The flame chain reaction depends on the free radical that produces in the combustion process, and free radical is the necessary factor that burning is continued.For example, breathing out dragon is exactly to be attached on the free radical, burns away and plays the fire extinguishing effect thereby stop.
The major defect that fire-fights by water is that common required water consumption is quite big, thereby because the damage that water causes is also very big.And, in some cases, also can't obtain sufficient water and be used for fire extinguishing.
Also through being usually used in fire extinguishing, but these two kinds of gases all have shortcoming to gas such as carbon dioxide and Ha Long.The there in the scope of their fire extinguishings, the people can not be arranged, because can't be breathed.For this reason, the fire extinguishing personnel with gas extinguishing agent must wear breathing device.And, breathe out dragon and also have another shortcoming, promptly it is hypertoxic, environmental pollution is serious.Owing to these reasons, Montreal Convention has banned use of breathes out the dragon fire extinguishing, and does not allow to produce again and use the Kazakhstan dragon.
Also have a shortcoming with carbon dioxide and Ha Long extinction using gas, promptly need, especially for the time such as the fire extinguishing of this class large space of building with a large amount of gas.Usually will inject the space catch fire with carbon dioxide, such as a building that catches fire, carbon dioxide will reach and account for 87% of building space and could put out a fire.This means and to be connected on the supply air line that comprises nozzle through pipeline with many carbon dioxide tanks.
Usually when breathing out the imperial fire that puts out in a certain space, need be with taking up space 5% to 7% Kazakhstan dragon.This means and to be connected on the supply air line that comprises nozzle with many Kazakhstan dragon jar process pipeline.
Using gas extinguishing agent, is that expense is than higher as another shortcoming of carbon dioxide and Ha Long.
Another shortcoming of putting out the fire in some space with gas extinguishing agent is must closeall door and ventilating opening.Use gas extinguishing agent, excessive when putting out fire in a certain space as this space ventilator as carbon dioxide and Ha Long, the poor effect of then putting out a fire.
Using gas extinguishing agent, is that these gases can only absorb seldom heat from hot object as another shortcoming of carbon dioxide and Ha Long fire extinguishing.For example, if there is the hydrocarbon fuels that from the cartridge that breaks, sprays directly to be sprayed onto on the exhaust pipe of engine of heat, can cause igniting once more.This will cause so-called arcing phenomenon.
A kind of fire-fighting technique that can avoid the above-mentioned fire-fighting technique shortcoming of this paper is the fine mist that this not flammable liquid of water produces, reduce vapour around the fuel heat, reduce fuel heat, squeeze away oxygen and block the flame chain reaction.That is to say that this liquid extinguisher of water has been attacked all parts of combustion process, except removing fuel.This fine mist not flammable liquid has squeezed away oxygen, and in case be heated, thereby also can gasify and expand and squeeze away more oxygen.Liquid is in case expansion absorbs heat just from fuel vapour absorption heat on every side, and from fuel.In addition, droplet can be blocked the flame chain reaction.Therefore droplet has inhibitory action and cooling effect to flame.Owing to these reasons, droplet has beyond thought effect, so water not only can be used for the fire extinguishing of category-A and category-B fire safely as flammable liquid extinguishing chemical not, also can be used for C class fire, the i.e. fire extinguishing of electric information fire safely.Therefore, no longer be the traditional situation that fire-fights by water with vaporific not flammable liquid fire extinguishing.
When usually putting out a fire, be that the droplet of flammable liquid (may be water) is not sprayed to the scene of catching fire with vaporific not flammable liquid fire extinguishing system.Normally not flammable liquid pump supercharging, through pipe network, again through many nozzle ejections.Flammable liquid under high pressure is not atomized into tiny drop when nozzle is extruded.Catch fire the zone be full of by water smoke, thereby stamp out a fire.Usually this vaporific not flammable liquid fire extinguishing system will be with a feed flow net.If the space of protection is bigger, then must be with a feed flow pipe network with many nozzles.Usually, this feed flow pipe network is hard-wired, promptly is not portable.
In the international market, existing now multiple vaporific not flammable liquid fire extinguishing system.Wherein the used nozzle of most systems has only a spray holes.
Use a shortcoming of single spray orifice nozzle to be in vaporific not flammable liquid fire extinguishing system: this nozzle can not provide wide spraying coverage rate, and is difficult for reaching optimal flow rate density to guarantee fire extinguishing.When using single spray orifice nozzle, must adopt many nozzles in system's design to obtain the coverage rate and the total flow density of the best.And in the scene of fire, with nozzle and feed pipe gauze that many single spray orifice nozzles must cause gathering, such system's mounting cost is very high, and is difficult to see.Mean also that with a large amount of not flammable liquid feed pipe nets this system can be heavy, and this is a shortcoming in some occasion, for example such system is installed on the high speed passenger transportation ferry boat.
For replacing single spray orifice nozzle, existing several systems have adopted many spray orifices nozzle.These each nozzles of many spray orifices nozzle can produce the spraying coverage rate of broad, have increased flux density and attractive in appearance, that is to say, less nozzle only need be installed in a same scene of fire.These many spray orifices nozzle systems all be with the design of intrinsic design parameter to adapt to specific system.Two examples of this many spray orifices of class nozzle are glycolylurea-La Ersen (Heien-Larsen) atomizer and the few husband OY of horse dense fog (Marioff 0Y Hi-Fog) atomizer, and it is among the WO92/20453 (PCT/F192/00155) that the latter is documented in international patent application no.
The operation principle of glycolylurea-La Ersen (Heien-Larsen) atomizer is the rotation of nozzle.This atomizer is a kind of many spray orifices nozzle, and water is under high pressure atomized.Yet this nozzle relies on it to rotatablely move and work.If mechanical system is blocked, flammable liquid just can not be atomized so, does not also just produce droplet.At this moment this nozzle had just lost efficacy.
The few husband 0Y of horse dense fog (Marioff OY Hi-Fog) atomizer is to realize atomizing under high pressure, and pressure clings to up to 150-200 usually.This atomizer has a plurality of moving parts, and is to rely on the rotation of dispersed jet to realize atomizing, therefore can not get rid of the problem of blocking as the sort of mechanical system of glycolylurea-La Ersen (Heien-Larsen) atomizer existence.Nozzle inside diameter on the few husband OY of horse dense fog (the Marioff OY Hi-Fog) atomizer is especially little, adopts from the dispersed jet of nozzle lateral spiral rotation and makes not flammable liquid atomizing.
Usually, well-known, the water atomizing nozzle of many spray orifices can provide the spraying coverage rate of broad and bigger water supply flow density to the fire incident area.Should increase flux density, improve track, the spraying coverage rate of water smoke simultaneously again, also will deeper penetrate flame (general water smoke jet pipe can spray and reach 5 to 10 meters distance), it is very difficult possessing such ability.
Produce the spraying face of broad and darker flame breakthrough, the while is augmented flow density and raising water velocity (such as by improving the way of operating pressure) again, it seems that benefit is little.For example, the optimal design pressure of raising nozzle can make spraying " whirling motion " become the spraying face of an approximate taper.This just means that nozzle and liquid supply tube must draw closer together, and guarantees suitable flux density, the water smoke envelope of putting out a fire effectively with formation.This just has the shortcoming of above pointing out.
And, be difficult to accomplish to have uniformly, the wide cut spraying face of horizontal direction 360 degree, and produce a vertical jet flow face simultaneously again at the ceiling place.Existing hydraulic spray nozzle mostly is vertical the injection, that is to say, if nozzle is installed perpendicular to ceiling, then the jet flow awl is equal to or less than an angle of 90 degrees.
The summary of invention
The invention provides a kind of nozzle of atomizing of liquids, it comprises: a shell, several chambeies are arranged in it, in each chamber injection apparatus is housed, each chamber on the shell is provided with out aperture apparatus, the liquid of delivering to nozzle flows into described chamber and the atomizing of injected device, thereby the go out aperture apparatus of liquid through nozzle come out with atomized spray from nozzle.
More preferably, in described shell, be provided with three chambeies at least.
More preferably, describedly go out aperture apparatus and comprise that one portals, like this, described liquid can be from described the portal ejection of each described chamber through its correspondence.
More preferably, described injection apparatus is static in described chamber in use.
More preferably, described injection apparatus is removably to be contained in described each chamber.
More preferably, this nozzle has an admission chamber, and it receives the liquid of being introduced nozzle by import.
More preferably, several openings are arranged in described admission chamber, they are communicated with outlet by the path in the described shell.
More preferably, liquid is transverse direction substantially and goes out aperture apparatus and described outlet ejection from described.
More preferably, described injection apparatus is provided with the groove of liquid communication, and described liquid with vaporific by the ejection of portalling.
More preferably, described injection apparatus has a flange, a middle part and a butt tapering, and described upper flange part and described butt tapering are provided with the liquid flow groove.
More preferably, described middle part separates described upper flange part with described frustum portion, and at described middle part be equipped with between the wall in chamber of injection apparatus and form an annular space.
More preferably, be provided with a shell cover piece, the remainder of it and described shell is releasable connection, and has constituted described liquid with the remainder of described shell and enter the chamber.
More preferably, pull down described shell cover piece after, can see described injection apparatus.
More preferably, described injection apparatus is provided with the path of through hole as liquid.
More preferably, flow through the liquid of the through hole on the described injection apparatus and other liquid around the described injection apparatus of flowing through all from the same ejection of portalling.
In a kind of configuration, nozzle has a flat case surface, is provided with thereon and portals.
In the another kind configuration, nozzle has a frustoconical case surface, is provided with on it and portals.
Nozzle of the present invention can be a kind of automatic nozzle or a kind of heavy rain formula nozzle.
Nozzle of the present invention can be installed in any position in the accident space, preferably, is installed on the sidewall that maybe needs on the ceiling in certain space with the space of water smoke protection.In some cases, hydraulic spray nozzle can directly be placed near the possible burning things which may cause a fire disaster, for example is placed near engine turbine or the fuel injection system, because motor operation can produce heat, these places are on fire probably.
Nozzle of the present invention can be used for flammable liquid feed pipe net not and put out fire in the closed area, for example the engine room on the ship, public activity district and bedroom district, hangar, warehouse, tunnel, office building, communicate by letter between, on the power compartment, oil platform, on the power transformer, or in the building or equipment of the fixed fire prevention fire-extinguishing apparatus of other any needs.
Be used for not flammable liquid feed pipe net and put out a fire although nozzle of the present invention is mentioned it here especially, should be appreciated that this only is for example, nozzle of the present invention can be widely used in all other suitable purposes.
Brief description of drawings
Below in conjunction with drawings and Examples the present invention is described in detail, wherein:
Fig. 1 is the schematic diagram of burning three elements triangle relation and flame chain reaction circle;
Fig. 2 is first embodiment of a kind of nozzle of the present invention, and nozzle shown in the figure is connected one, and the flammable liquid feed pipe is not online;
Fig. 3 a is a nozzle shown in Figure 2 condition diagram when opening the shell cover piece;
Fig. 3 b is a vortex injector of nozzle shown in Fig. 3 a;
Fig. 4 is second embodiment of nozzle of the present invention, and nozzle shown in the figure is connected one, and the flammable liquid feed pipe is not online;
Fig. 5 a is a nozzle shown in Figure 4 condition diagram when opening the shell cover piece;
Fig. 5 b is a vortex injector of nozzle shown in Fig. 5 a;
Fig. 5 c is the ground plan of nozzle shown in Fig. 5 a, can see from this figure and portalling;
Fig. 6 a is the exploded view of the 3rd embodiment of nozzle of the present invention;
Fig. 6 b is a vortex injector of nozzle shown in Fig. 6 a;
Fig. 6 c is the plane of a vortex injector that is positioned at vortex chamber of nozzle shown in Fig. 6 a;
Fig. 6 d is the glass envelope in the glass envelope outer cover that is contained in of nozzle shown in Fig. 6 a;
Fig. 7 is the profile of nozzle shown in Fig. 6 a;
Fig. 8 a is the schematic diagram that nozzle takes off the glass envelope outer cover shown in Fig. 6 a;
Fig. 8 b is the insertion machine composition of nozzle shown in Fig. 8 a;
Fig. 8 c is the glass envelope in the glass envelope outer cover that is contained in of nozzle shown in Fig. 8 a.
Embodiments of the present invention
In Fig. 2, nozzle 2 is connected to one not on the pipe 4 of flammable liquid feed pipe net.This nozzle 2 and parts thereof are shown in Fig. 3 a and 3b.
In Fig. 3 a, shown nozzle 2 has seven vortex chambers 8.But, the vortex chamber 8 of right quantity all is fine arbitrarily.Usually each nozzle should have three vortex chambers 8 at least.An injector 10 is arranged in each vortex chamber 8.
Each vortex chamber 8 has one to portal 12.
In the shell 6, between its surface 18 and shell cover piece 20, form a liquid and enter chamber 16.Shell cover piece 20 removably is contained on the remainder of shell 6.For example, can be connected with screw thread 24 on the shell remainder with the screw thread on the shell cover piece 20 22.Liquid described below enters chamber 16 and can see clearlyer on Fig. 7.
Screwdriver can insertion groove 26, injector 10 is back-outed from their corresponding vortex chambers 8, or be screwed in their corresponding vortex chambers 8.In addition, groove 26 also is that liquid enters annular space 35 passage of (as indicated above), in the vortex chamber 8 of annular space 35 between the wall of the stage casing 34 of injector 10 and vortex chamber 8.Liquid can be from this annular space along groove 28 flows to and portals 12.When liquid flows through groove 26 in each vortex chamber 8, annular space 35 and groove 28, liquid be atomized and with vaporific from 12 ejections of portalling accordingly.
Pull down shell cover piece 20 and can see injector 10.Shell cover piece 20 is provided with a joint 36 and links to each other with T junction 38 on the pipe 4.Joint 36 has an inlet 40, makes liquid enter chamber 16 from the liquid of pipe 4 flow nozzles 2.
Can be provided with a through hole that vertically penetrates 42 on the injector 10.Stage casing 34 and butt tapering 32 are passed from groove 26 in this hole.Therefore, liquid also can flow through from through hole 42.The liquid that flows through through hole 42 in each injector 12 is discharged through same portalling with the liquid that flows through along groove 26, annular space 35 and groove 28.
Passage 44 (see figure 7)s also can be set on the nozzle 2, and it enters floss hole 46 on the outer surface that chamber 16 extends to shell 6 from liquid.Inlet 48 on the passage 44 is on the surface 18 of shell 6.
Portal and 12 be arranged on the frustum section 50 of shell 6.
Fig. 4,5a and 5b illustrate the nozzle 60 of second embodiment of the invention.
In other respects, nozzle 60 is identical with the description of relevant nozzle 2 above.
The frustum section 50 of nozzle 2 has different injection coverage rates with the tack section 62 of nozzle 60.In this respect, the injection coverage rate of nozzle 2 wide than nozzle 60.For example, because the tapering of frustum section 50, the injection wide coverage of nozzle 2 is about 130 degree.And the injection coverage rate of nozzle 60 is narrower, is approximately 70 degree.
Yet above-mentioned injection angle of coverage is only given an example, and designs its shape of nozzle rightly, can obtain different injection angle of coverage.
In use, nozzle of the present invention is connected on the pipe 4 of flammable liquid feed pipe net not, this feed flow pipe network is installed on the zone that needs the fire preventing accident.This feed flow pipe network designs according to hydraulic principle, makes this system can carry required not flammable liquid amount under the pressure of regulation, and obtains optimal flow rate density to reach the purpose of fire extinguishing according to liquid flow velocity.This feed flow pipe network is fixedly installed on the ceiling, on the wall or estimate may breaking out of fire the place.Carry out engineering design by required optimum flow rate and the flux density of fire extinguishing, determine the quantity of required nozzle.The type and size of nozzle, and they are in the position in fire incident zone, all calculate according to hydraulics and the setting of engineering design principle.
Flammable liquid can not introduced the feed flow pipe network from the self-sustaining fluid reservoir of keeping certain hydraulic pressure (being generally 20 crust), or with introducing the feed flow pipe network by the fire extinguishing pump of the required design pressure of system (for example 20-22 crust) work.Be lower than 20 crust or be higher than 20 other pressure that cling to and also can use, for example can hang down and reach 5 crust, or up to 100 crust.
Nozzle of the present invention can be used to any possible design pressure.
Nozzle can be made different sizes and size, has different K factor values, to meet the requirements of flux density.The fluid flow of different spray nozzles changes with size and other running parameters of operating pressure, the size of portalling, nozzle.Flow velocity can be low to moderate per minute 3 liters, or high to per minute 3600 liters.Nozzle of the present invention can be used for the flow velocity of any needs, comprises being below or above above-mentioned flow velocity.
Nozzle of the present invention can be with various metal manufacturings, for example copper, brass, stainless steel and titanium.
Below narrate the using method of nozzle of the present invention.
As mentioned above, it is online that this nozzle can be fixed to feed pipe with the pipe that screw thread is screwed into the feed flow pipe network.When nozzle operation of the present invention, liquid enters chamber 16 from pipe 4 through import 40 influents.Then, liquid through groove 26 and 28 and annular space 35 flow through vortex chamber 8 with the form of vortex.This swirling action nebulizes from 12 ejections of portalling liquid.
Be provided with at vortex injector 10 under the situation of through hole 42, in vortex chamber 8, produce helical effect when liquid is under high pressure flowed through through hole 42, make the liquid 12 can be through portalling with higher speed ejection from vortex chamber 8.The raising of speed means that the fogging degree of liquid has improved, and the track of liquid mist obtains considerable improvement.
The diameter of through hole 42 can be approximately 2 millimeters.
And, when being provided with through hole 42, are " solid jet breaker " types from 12 spray patterns that penetrate of portalling, and when not being provided with through hole 42 in the vortex injector 10,12 spray patterns that penetrate are " hollow jet flow " types from portalling.The advantage of solid jet breaker type is to spray more evenly, thereby has improved flux density, fire extinguishing effect and improved cooling effect.
In vortex injector 10, be provided with through hole 42, wideer jet flow coverage rate can also be provided on the ground.Increase integrated flow rate density like this, helped fire extinguishing.Be provided with through hole 42, just can be under the situation that does not increase 12 sizes of portalling, the nozzle of same size can pass through bigger fluid discharge amount.
For instance, be that 1.4 millimeters nozzle is made overtesting once to the nominal diameter that portals, during the no through hole 42 of vortex injector 10, under 10 crust operating pressures, the flow velocity of acquisition is per minute 6.3 liters.Same nozzle has through hole 42 on the vortex injector 10, when the diameter in hole was 2 millimeters, under same operating pressure, the flow velocity of acquisition was per minute 9.3 liters.
In that the penetration capacity that through hole 42 can also strengthen the fuel factor stream that liquid mist given birth on to flame is set on the vortex injector 10, can stamp out the flames in the short period of time.
Even through hole 42 is not set on vortex injector 10, from this nozzle portal 12 the ejection liquid also be under high pressure to spray to the fire incident zone.Liquid under high pressure atomizes, and droplet outwards is sprayed onto apart from nozzle different distance place, enters the space that needs fire extinguishing.The droplet sizes that nozzle of the present invention sprayed helps the track of droplet to enter the bottom of flame and fire, thereby improves its potential heat absorptivity.Droplet sizes can be approximately 1 micron to 1000 microns.Yet, nozzle of the present invention also comprise less than or greater than the droplet sizes of the above-mentioned lower limit and the upper limit.
When nozzle of the present invention was used for the feed flow pipe network, flammable liquid can not adopt water, fresh water, distilled water or seawater.For increasing the fire extinguishing effect, can not add certain fire extinguishing chemicals in the flammable liquid.For example, a kind of moisture film that contains that can produce foam is exactly a kind of suitable fire extinguishing chemicals.
Nozzle of the present invention can be used as automatic spray nozzle or heavy rain formula spray nozzle.
Automatic spray nozzle steeps starting nozzle with a frangible crystal glass, in case glass envelope is subjected to thermal fracture, liquid mist promptly sprays to the fire incident district.
Heavy rain formula spray nozzle does not make liquid mist flow to emergency area by breaking of glass envelope.Heavy rain formula spray nozzle can start with a pyrotechnics sensor or detector.Heavy rain formula spray nozzle is called " main " feed flow network, and this system is in case start, water just begin to flow through pipeline and spray from nozzle.
Fig. 6 a-8c is a third embodiment of the present invention nozzle 70.
Nozzle 70 is similar to the nozzle 2 among Fig. 2-3b, and just nozzle 70 has a frangible crystal glass bubble 72 that is used for starting nozzle 70, in case glass envelope 72 is subjected to thermal fracture, the liquid nozzle 70 of promptly flowing through sprays to the fire incident district.
There is a dimple bottom surface of the frustum section 50 of nozzle 70, and like this, outer cover 74 can be connected with the screw thread 84 in the frustum section dimple of the screw thread on it 82 and shell 6 and be screwedly mounted on the shell 6.
An O-shape ring 86 is arranged between the shell 6 of outer cover 74 and nozzle 70.
It is movable inserting mechanism 76, therefore, when glass envelope 72 breaks, inserts mechanism 76 and moves downward under the effect of liquid back-pressure, drops in the outer cover 74.Like this, just can flow through inlet 40 and path 88 influents of liquid enter chamber 16, and the course of work after this is to mentioned above similar.
Because vortex injector 10 is 6 li on shells that removably are contained in nozzle of the present invention, this just makes vortex injector 10 can exchange between the nozzle of same size, needn't be the brand-new nozzle housing assembly of different nozzle manufacturings.Producing cost is reduced.The interchangeability of vortex injector 10 means that also nozzle keeps in repair easily, and if a system needs to improve, required expense is also than not interchangeable lacking.
Although this paper has described the application of nozzle of the present invention in fire extinguishing especially, this only is for example, and nozzle of the present invention can be used for all other suitable purposes, and the open fire suppression applications that is not only limited to of this patent.
For a person skilled in the art, it is evident that any modifications and changes all within the scope of the present invention.
Claims (25)
1, a kind of nozzle that is used for atomizing of liquids, it is characterized in that: it comprises a shell, be arranged on several chambeies in the described shell, be arranged on the injection apparatus in the described respective chamber, described shell has the aperture apparatus that goes out corresponding to each described chamber, the liquid of delivering to described nozzle flows into described chamber and is atomized by described injection apparatus, described liquid is nebulized go out the aperture apparatus ejection from described nozzle through described.
2, nozzle according to claim 1 is characterized in that: three described chambeies are set in described shell at least.
3, nozzle according to claim 1 and 2 is characterized in that: describedly go out aperture apparatus and comprise that one portals, make the liquid can be from each described chamber through its ejection of portalling.
4, according to the described any nozzle of claim 1 to 3, it is characterized in that: described injection apparatus is removably to be contained in the described chamber.
5, according to the described any nozzle of claim 1 to 4, it is characterized in that: in use, described injection apparatus is static in described shell.
6, according to the described any nozzle of claim 1 to 5, it is characterized in that: be provided with nozzle inlet and admission chamber device, make liquid introduce described admission chamber device via described nozzle inlet.
7, nozzle according to claim 6 is characterized in that: liquid can enter described chamber from described admission chamber device.
8, according to claim 6 or 7 described nozzles, it is characterized in that: described shell is provided with the access device that flows for liquid, and inlet device is connected with described admission chamber device and the outlet device that is located at the outside of described shell.
9, nozzle according to claim 8 is characterized in that: the described outlet device of described access device is to arrange like this, and the direction that sprays liquid from described nozzle is substantially perpendicular to from the direction of the liquid of the described ejection of portalling.
10, according to Claim 8 or 9 described nozzles, it is characterized in that: the described outlet device of described access device is to arrange like this, and the basic upper edge of liquid is radially from described nozzle ejection.
11, according to Claim 8 to 10 described any nozzles, it is characterized in that: described access device comprises a series of paths, and described import and outlet device comprise corresponding import of a series of and described path and outlet.
12, according to Claim 8 to 11 described any nozzles, it is characterized in that: the described outlet device of described access device is notch shape basically.
13, according to the described any nozzle of claim 1 to 12, it is characterized in that: go out the spraying cover width of ejection liquid the aperture apparatus up to 180 degree from described liquid.
14, according to the described any nozzle of claim 1 to 13, it is characterized in that: described injection apparatus is provided with the groove that passes through for liquid, so that liquid sprays from described nozzle.
15, nozzle according to claim 14 is characterized in that: described injection apparatus has a top, a middle part and a butt tapering, and described groove is located at described top and described butt tapering.
16, nozzle according to claim 15 is characterized in that: an annular space is formed between the wall and described middle part of described chamber device, as the path of liquid.
17, according to the described any nozzle of claim 1 to 16, it is characterized in that: described injection apparatus has the through hole device, as the path of liquid.
18, nozzle according to claim 17 is characterized in that: liquid can pass described through hole device and go out aperture apparatus and flow out described spray nozzle device through described.
19, according to claim 17 or 18 described nozzles, it is characterized in that: described through hole device one is through to described middle part and described butt tapering, like this, liquid can enter described through hole device at described middle part and discharge from described butt tapering.
20, according to the described any nozzle of claim 1 to 19, it is characterized in that: be provided with dismountable casing cover device, the remaining part of it and described shell has constituted described liquid and has entered the chamber.
21, nozzle according to claim 20 is characterized in that: after pulling down described casing cover device, can see described injection apparatus.
22, according to the described any nozzle of claim 1 to 21, it is characterized in that: describedly go out aperture apparatus and be arranged on the described butt tapering of described shell.
23, according to the described any nozzle of claim 1 to 21, it is characterized in that: describedly go out aperture apparatus and be arranged on the tack section on the described shell.
24, according to the described any nozzle of claim 1 to 13, it is characterized in that: be provided with a fragile part, in case described fragile part breaks, described nozzle starts immediately.
25, a kind ofly be used to carry the not fire extinguishing pipeline feed flow net of flammable liquid, it is characterized in that: which comprises at least one by the described any nozzle of claim 1 to 24.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9609885.0 | 1996-05-11 | ||
| GBGB9609885.0A GB9609885D0 (en) | 1996-05-11 | 1996-05-11 | Improved mistex water mist nozzles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1219140A true CN1219140A (en) | 1999-06-09 |
Family
ID=10793558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97194812A Pending CN1219140A (en) | 1996-05-11 | 1997-05-09 | Nozzle |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0897322A4 (en) |
| CN (1) | CN1219140A (en) |
| AU (1) | AU2627897A (en) |
| CA (1) | CA2255079A1 (en) |
| FI (1) | FI982449A (en) |
| GB (1) | GB9609885D0 (en) |
| NO (1) | NO985264L (en) |
| NZ (1) | NZ333363A (en) |
| WO (1) | WO1997043046A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100496643C (en) * | 2005-07-01 | 2009-06-10 | 韩铁夫 | Closed type middle and low pressure water mist sprayer with single spraying nozzle |
| CN100525931C (en) * | 2003-03-24 | 2009-08-12 | 约瑟夫·艾安 | Spray nozzle for overheated liquid |
| CN102038432A (en) * | 2009-10-22 | 2011-05-04 | 班奥麦迪克公司 | Flexible spray head |
| CN113975691A (en) * | 2021-11-15 | 2022-01-28 | 应急管理部天津消防研究所 | Composite atomization type spray head |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK175918B1 (en) * | 2003-08-21 | 2005-06-27 | Vid Aps | Liquid atomizer with dual nozzle arrangement for fire extinguishing |
| AU2007297696B2 (en) | 2006-09-19 | 2013-01-10 | Hypro, Llc | Spray head with covers |
| CA2679002C (en) * | 2009-07-28 | 2020-01-07 | William Robert Lowry | Ambient mist head |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE324589C (en) * | 1916-11-19 | 1920-09-01 | Rudolf Wagner Dr | Centrifugal atomizer head |
| US1395442A (en) * | 1918-12-18 | 1921-11-01 | Pyrene Mfg Co | Spray-nozzle |
| US3128048A (en) * | 1962-11-13 | 1964-04-07 | Mary Ansara Nelson | Fog nozzle |
| US3684194A (en) * | 1970-10-29 | 1972-08-15 | Delavan Manufacturing Co | Spray nozzle |
| DE3243230C2 (en) * | 1982-11-23 | 1986-11-27 | Debreceni Mezögazdasági Gépgyártó és Szolgáltató Vállalat, Debrecen | Swirl nozzle for spray systems |
| DE3440901A1 (en) * | 1983-12-30 | 1985-07-11 | VEB Metalleichtbaukombinat, DDR 7030 Leipzig | Arrangement for finely atomising fluids |
| SU1371741A1 (en) * | 1986-08-11 | 1988-02-07 | Научно-производственное объединение "АНИТИМ" | Die with disengaged male dies |
| KR100210033B1 (en) * | 1991-05-20 | 1999-07-15 | 괴란 순트홀름 | Fire fighting equipment |
| FI90394C (en) * | 1992-04-23 | 1994-02-10 | Goeran Sundholm | The fire-fighting unit |
| US5653391A (en) * | 1994-02-15 | 1997-08-05 | Nohmi Bosai Ltd. | Fire extinguishing head |
-
1996
- 1996-05-11 GB GBGB9609885.0A patent/GB9609885D0/en active Pending
-
1997
- 1997-05-09 EP EP97917947A patent/EP0897322A4/en not_active Withdrawn
- 1997-05-09 WO PCT/AU1997/000288 patent/WO1997043046A1/en not_active Application Discontinuation
- 1997-05-09 NZ NZ333363A patent/NZ333363A/en unknown
- 1997-05-09 CA CA002255079A patent/CA2255079A1/en not_active Abandoned
- 1997-05-09 AU AU26278/97A patent/AU2627897A/en not_active Abandoned
- 1997-05-09 CN CN97194812A patent/CN1219140A/en active Pending
-
1998
- 1998-11-11 FI FI982449A patent/FI982449A/en unknown
- 1998-11-11 NO NO985264A patent/NO985264L/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100525931C (en) * | 2003-03-24 | 2009-08-12 | 约瑟夫·艾安 | Spray nozzle for overheated liquid |
| CN100496643C (en) * | 2005-07-01 | 2009-06-10 | 韩铁夫 | Closed type middle and low pressure water mist sprayer with single spraying nozzle |
| CN102038432A (en) * | 2009-10-22 | 2011-05-04 | 班奥麦迪克公司 | Flexible spray head |
| CN102038432B (en) * | 2009-10-22 | 2016-04-20 | 班奥麦迪克公司 | Flexible spray head |
| CN113975691A (en) * | 2021-11-15 | 2022-01-28 | 应急管理部天津消防研究所 | Composite atomization type spray head |
Also Published As
| Publication number | Publication date |
|---|---|
| FI982449A (en) | 1999-01-08 |
| GB9609885D0 (en) | 1996-07-17 |
| FI982449A0 (en) | 1998-11-11 |
| NO985264L (en) | 1999-01-11 |
| EP0897322A1 (en) | 1999-02-24 |
| NO985264D0 (en) | 1998-11-11 |
| NZ333363A (en) | 2000-10-27 |
| AU2627897A (en) | 1997-12-05 |
| CA2255079A1 (en) | 1997-11-20 |
| EP0897322A4 (en) | 2000-10-18 |
| WO1997043046A1 (en) | 1997-11-20 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |