CN109966681A - A kind of binary channels low-pressure fluid atomizer - Google Patents
A kind of binary channels low-pressure fluid atomizer Download PDFInfo
- Publication number
- CN109966681A CN109966681A CN201910339353.7A CN201910339353A CN109966681A CN 109966681 A CN109966681 A CN 109966681A CN 201910339353 A CN201910339353 A CN 201910339353A CN 109966681 A CN109966681 A CN 109966681A
- Authority
- CN
- China
- Prior art keywords
- gas
- cavity
- liquid
- water
- binary channels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 239000007921 spray Substances 0.000 claims abstract description 28
- 239000003595 mist Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000011159 matrix material Substances 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 238000000889 atomisation Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000010419 fine particle Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 49
- 238000000034 method Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 229920004449 Halon® Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- -1 alkyl halide compound Chemical class 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
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002663 nebulization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
Landscapes
- 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)
Abstract
The present invention provides a kind of binary channels low-pressure fluid atomizer, which is included at least: gas passage, fluid passage, revolution cavity and water-mist outlet belong to fire-fighting domain, are related to a kind of efficient, energy-saving and environmental protection applicator.The spray head can atomize the liquid into fine particle, to realize the low-energy-consumption high-efficiency atomization of liquid, realize the function of fire extinguishing and its is at low cost, extinguishing effect is excellent.
Description
Technical field
The application belongs to fire-fighting domain, be related to it is a kind of efficiently, the applicator of energy-saving and environmental protection more particularly to a kind of can make
The nozzle structure of liquid high-efficient atomizing.
Background technique
Security against fire is always the field that country attaches great importance to, and a fire often brings huge property loss to the mankind
And personal injury.It is well known that there are three fundamentals for kindling: combustible；Temperature reaches ignition point；There is sufficient combustion-supporting gas
Body, such as oxygen.Only in the case where three conditions are provided simultaneously with, combustible could burn.It stamps out a fire, just must
One of above-mentioned three elements must be destroyed.
The design of fire extinguishing system traditional at present, mainly include the following types:
1, what is most generallyd use is water sprinkler system, and most of building interior has all been installed and used, which needs to consume
Great lot of water resources, due to using water flow big, the important electricity on often ground such as well damage, especially computer room after equipment is immersed in water
There is short circuit after being immersed in water in gas equipment, and causes various faults, or keep database loss serious etc..
2, there are also a kind of spraying systems of high-effect fire-extinguishing, that is, use halon extinguishing agent, and alkyl halide compound is pressurizeed and is pressed
Enter container, since pressure acts on when use, is sprayed from nozzle with mist, quickly become steam under the action of the combustion heat.Mainly
It is the chemical reaction process by inhibiting burning, makes flameout, achievees the purpose that fire extinguishing, effect are connected by burning of taking away
For activity substance in lock reactor come what is completed, this process is known as chain breaking process and process of inhibition, acts on dry powder fire extinguishing agent
It is similar.But halon extinguishing agent is also phased out because damaging to atmospheric ozone layer since environmental issue is increasingly serious.
3, mist fire-fighting expands its application range constantly, mist fire-fighting because it is for the potential advantages of environment
It is encouraging achievement, recent domestic increasingly contains the research for putting out various fire using water mist.
Water mist reaches control fire under the triple role of cooling, asphyxia and blocking radiant heat, inhibits fire and put out fire
The purpose of calamity, the cooling effect of the existing water sprinkler system of water fog sprinkler, and have the smothering action of gas extinguishing system, so
It is the extraordinary fire-fighting technique being worthy to be popularized.
What is come into operation at present is a kind of high pressure water spraying fire fighting system, and water mist partial size is up to 100 microns hereinafter, extinguishing effect
It is good, but system needs very high pressure to be just able to achieve the effect that water is broken up to atomization, usual pressure needs to reach 10~16MPa,
Requirement to whole system and pump group is very high, and the system Construction of super-pressure to building itself and activity staff exist compared with
Big security risk, construction cost are also very high.
In view of the problems of the existing technology, the present invention provides a kind of binary channels low-pressure fluid atomizer, Ji Nenggao
Effect fire extinguishing, simultaneity factor safety is easily achieved again, and raw materials are environmentally friendly, consumption is few.
Summary of the invention
The present invention is achieved by the following technical solutions: a kind of binary channels low-pressure fluid atomizer, the spray head is at least
It include: for realizing the revolution cavity of gas molecule resonance, for injecting the gas spray pipe of gas, for exporting to revolution cavity
The liquid jet and water-mist outlet of liquid, the revolution cavity are Helmholz resonance cavity configuration, and the gas spray pipe has
Daraf(reciprocal of farad) that structure, the liquid jet have the gradually smaller necking reducer structure of internal diameter；From revolution cavity export gas with
The liquid of liquid jet output sprays after mixing in the slit that a width is 0.1-5mm from water-mist outlet.
Further, which includes cylindrical matrix, and described matrix side wall is provided with water-mist outlet, at least has in matrix
There are a daraf(reciprocal of farad) that gas passage for structure and the fluid passage of necking reducer structure, and revolution cavity, fluid passage lower end
The slit with 0.1-5mm between the revolution cavity.
Further, the gas passage is located at the front of the revolution cavity, and fluid passage is located at the gas passage
Outside.
Further, the section of the revolution cavity is rectangle or circle.
Further, which further includes air inlet pipe and inlet tube, and the air inlet pipe is connected with gas passage, inlet tube with
Fluid passage is connected.
The invention has the benefit that the daraf(reciprocal of farad) that knot of supersonic airstream can be generated by using one kind in gas pipeline
Structure and can allow supersonic airstream generate high-frequency resonance energy Helmholz resonance cavity configuration revolution cavity, and have the draw
The fluid pipeline of variable-diameter structure atomizes the liquid into fine particle using the high-frequency vibratory energy of supersonic airstream, to realize
The low-energy-consumption high-efficiency of liquid is atomized, and realizes the function of fire extinguishing.The spray head only needs the low-pressure gas of 0.3-0.5MPa that can generate
Supersonic airstream with high-frequency vibratory energy can be atomized out about 40-80 μm of diameter in conjunction with the low pressure liquid of 0-0.3MPa
Droplet particle；Cost is relatively low for the misty liquid droplets generated by the spray head, and extinguishing effect is best.Changing by force combination simultaneously
Become, which generates the droplet size and range of atomized flow under different demands, the extinguishment requirement for different occasions.Meanwhile this pair
Channel low-pressure fluid atomizer has high reliability, even if part blocking occur does not influence whole atomization, institute still
Not high to water quality requirement with the spray head, generally conventional water source can be used directly, and without especially filtering, the spray head is in addition to building on land
Build outer, aviation, ocean and field environment are suitable for using while mobile, fixed system can be used.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of spray head of the present invention；
Fig. 2 is the structure sectional view of spray head of the present invention；
Fig. 3, Fig. 4 are the expansion structure cross-sectional view of spray head of the present invention；
Fig. 5 is a specific embodiment of the invention schematic diagram.
Specific embodiment
The present invention relates to a kind of binary channels low-pressure fluid atomizer, which is included at least: for realizing gas molecule
Resonance turns round cavity, for injecting the gas spray pipe of gas, for the liquid jet and water of output liquid to revolution cavity
Mist outlet, the gas spray pipe have daraf(reciprocal of farad) that structure, and the liquid jet has the gradually smaller necking reducer structure of internal diameter；
Gas spray pipe injects gas to revolution cavity, generates high-frequency energy through revolution cavity resonance, the Supersonic with high-frequency vibratory energy
Fast air-flow in the slit that a width is 0.1-5mm by the fluid film impact atomization of process at countless subtle mist particles,
And it is spouting through water-mist outlet by the water mist that gas is carried secretly, in one annular water mists region of surrounding formation, wide coverage,
It is strong to diffuse effect, can be used for putting out periphery fire.
Realize that gas molecule resonance is existing technological means, such as Helmholz resonance cavity configuration by revolution cavity
Above-mentioned gas molecular resonance can be realized；The section of Helmholz resonance cavity configuration can be rectangle, circle etc..
In the present invention, those skilled in the art only need the position that gas spray pipe outlet with revolution cavity hatch is simply provided,
Gas spray pipe can be realized to revolution cavity injection gas.
Equally, cavity, liquid jet outlet, water-mist outlet are turned round in the setting that those skilled in the art can also be beyond all doubt
Position so that from revolution cavity export gas mixed with the liquid that liquid jet exports after, and from water-mist outlet ejection.Change
Become liquid ejection position, makes best nebulization region and air-flow high-frequency energy Region Matching, while liquid outlet being made to face air-flow
It is formed by negative pressuren zone.
In the present invention, gas will be accelerated using the gas spray pipe of daraf(reciprocal of farad) that structure, in accordance with la farr pipe principle, first undergauge
It is expanding afterwards, or by undergauge to achieve the purpose that air-flow accelerates；Air inlet pipe need to only provide the lower pressure of 0.3-0.5MPa, gas
Body will inflow gas jet pipe, by first contract afterwards the daraf(reciprocal of farad) that expands your structure raise speed to gas, generate the supersonic speed of 2Ma or more
Air-flow.Wherein the specific structure of gas spray pipe is not limited to structure shown in Fig. 2, and gas is selected the gas for not supporting burning, generally adopted
With inert gas such as nitrogen, nitrogen is main component in air, resourceful to be easy to get, environmentally friendly to the Nature, can also
To select other gaseous state resources.
The present invention accelerates liquid using the gradually smaller necking reducer structure of internal diameter, while adjusting liquid outlet position,
Inlet tube need to only provide the fluid pressure of 0-0.3MPa, liquid energy self-priming influent jet pipe, which can directly connect
Water tank, or the existing municipal tap water of access or fire demand water can be used, without additionally installing supercharging equipment.Through liquid
Film-form sprays in a ring after the necking reducer structure of nozzle tip.Liquid generally uses water, resourceful to be easy to get, and easily stores up
Transport is deposited, it is environmentally friendly, other liquid resources can also be used.
The gas of revolution cavity output mixes in the slit that a width is 0.1-5mm with the liquid that liquid jet exports,
0.1-5mm is that optimal resonance generates distance, will be weakened below or above the high-frequency resonance energy that this range air-flow generates.
The specific structure of Fig. 1,2 to realize the present invention, but not limited to this, which includes cylindrical matrix 1, institute
It states 1 side wall of matrix and is provided with water-mist outlet 7, at least there is the gas passage 4 and necking reducer knot of your structure of a daraf(reciprocal of farad) in matrix 1
The fluid passage 5 of structure and the revolution cavity 6 of Helmholz resonance cavity configuration.5 lower end of fluid passage and the revolution cavity 6
Between with 0.1-5mm slit.In Fig. 2, the gas passage 4 be located at it is described revolution cavity 6 front, fluid passage 5
In 4 outside of gas passage, 6 section of revolution cavity is rectangle.Air inlet pipe is further comprised in the structural schematic diagram of Fig. 1
3 and inlet tube 2, the air inlet pipe 3 be connected with gas passage 4, inlet tube 2 is connected with fluid passage 5.Gas is in daraf(reciprocal of farad) that structure
Channel in accelerate, turned to suddenly after spraying to revolution cavity 6, a negative pressuren zone generated in cavity, which can generate
The liquid that fluid pipeline 5 flows out can be atomized into superfine droplet, gas by 17-25kHz high-frequency vibratory energy, the energy in slit
Stream is sprayed entrainment of water mist by water-mist outlet 7.
The difference of atomizer structure and Fig. 2 as shown in Figure 3 is there is the revolution cavity of Mu Huozi structure of resonant cavity
6 section is spherical shape.
The specific structure of water-mist outlet is not limited to Fig. 2 structure, and nozzle structure cross-sectional view as shown in Figure 3 should by changing
Angle direction at binary channels low pressure fluid output realizes that water mist presses the injection of different angle and range.
The injection angle of air-liquid pipeline end and the locality of revolution cavity 6 are not limited to Fig. 2 structure, as shown in figure 4, will
The arrangement adjustment for turning round cavity 6, changes air-flow and liquid injects angle and turns round the locality of cavity 6, same to produce
High-frequency vibratory energy is given birth to realize splendid atomizing effect, and Fig. 4 structure also becomes water mist emission direction by certain angle downward
Injection.
It may include flow detection module, pressure detecting module, temperature based on the fire-fighting system of above-mentioned atomizer building
Monitoring modular and data recordin module.Whole system directly can be detected and be triggered automatically by temperature or fire source, whole-process automatic
Change fire extinguishing, is put out a fire according to the data-triggered difference spray head that detection is collected, pass through procedure auto-control attack time and fire-fighting mode.
As long as the mode for meeting above structure principle belongs to the protected content of the application, including by herein described spray head
Other devices being derived.
Embodiment
The present invention can be used for the various occasions for needing to install fire-extinguishing apparatus, as commercial building, warehouse, computer room, aircraft hold,
The ground such as steamer are atomized the liquid into conjunction with designed by the present invention using supersonic airstream high-frequency vibratory energy for convenience of description
The atomizer of fine particle, illustrates specific embodiments of the present invention.
As shown in figure 5, be a set of fire extinguishing system unit, including gas supply, liquid supply, pressure adjusting, flow monitoring,
Spray head distribution.Wherein compressed gas first passes through pressure regulation valve regulation to convenient pressure, then passes through solenoid valve control air-channel system
Opening and closing, then pass through the consumption tolerance of the cmf record unit, finally it is linked into gas main road；Same water first passes through pressure regulator valve
Convenient pressure is adjusted, then passes through the opening and closing of solenoid valve control liquid channel system, then pass through the consumption of the cmf record unit
Water is finally linked into liquid main pipe rail.Several branches are separated from gas and liquid main pipe rail, are respectively connected to each spray head
Gas access and liquid inlet.Such mode is a fire extinguishing unit, and the system of complete set is by several such units
Composition, passes through control centre's Centralizing inspection and control.Every set system is equipped with fire detection system, once monitor temperature anomaly,
Control centre can be fed back to, the valve operation of corresponding units is controlled, realizes the control to corresponding region fire.
The gas and liquid supply pressure of system are little, supply by conventional equipment.Compressed gas can by air compressor machine,
Booster pump or air accumulator etc. provide, and water can be provided by municipal tap water, fire water, water tank etc..
Claims (5)
1. a kind of binary channels low-pressure fluid atomizer, which is characterized in that the spray head includes at least: total for realizing gas molecule
Vibration turns round cavity, for injecting the gas spray pipe of gas, for the liquid jet and water mist of output liquid to revolution cavity
Outlet, the revolution cavity are Helmholz resonance cavity configuration, and the gas spray pipe has daraf(reciprocal of farad) that structure, the liquid jet
With the gradually smaller necking reducer structure of internal diameter；The gas exported from revolution cavity and the liquid that liquid jet exports are wide one
Degree is to spray after mixing in the slit of 0.1-5mm from water-mist outlet.
2. binary channels low-pressure fluid atomizer according to claim 1, which is characterized in that including cylindrical matrix
(1), described matrix (1) side wall is provided with water-mist outlet (7), the gas passage in matrix (1) at least with your structure of a daraf(reciprocal of farad)
(4) and the fluid passage of necking reducer structure (5), and revolution cavity (6), between fluid passage lower end and the revolution cavity
Slit with 0.1-5mm.
3. binary channels low-pressure fluid atomizer according to claim 2, which is characterized in that gas passage (4) position
In the front of revolution cavity (6), fluid passage (5) is located on the outside of the gas passage (4).
4. binary channels low-pressure fluid atomizer according to claim 2, which is characterized in that the revolution cavity (6) is cut
Face is rectangle or circle.
5. binary channels low-pressure fluid atomizer according to claim 2, which is characterized in that further include air inlet pipe (3) and
Inlet tube (2), the air inlet pipe (3) are connected with gas passage (4), and inlet tube (2) is connected with fluid passage (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339353.7A CN109966681A (en) | 2019-04-25 | 2019-04-25 | A kind of binary channels low-pressure fluid atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910339353.7A CN109966681A (en) | 2019-04-25 | 2019-04-25 | A kind of binary channels low-pressure fluid atomizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109966681A true CN109966681A (en) | 2019-07-05 |
Family
ID=67086290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910339353.7A Pending CN109966681A (en) | 2019-04-25 | 2019-04-25 | A kind of binary channels low-pressure fluid atomizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109966681A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509673A (en) * | 2021-05-14 | 2021-10-19 | 浙江佑安高科消防系统有限公司 | High-efficient extinguishing device of double-fluid water mist |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040188104A1 (en) * | 2001-10-11 | 2004-09-30 | Borisov Yulian Y. | Apparatus comprising an atomizer and method for atomization |
| CN103381398A (en) * | 2013-08-08 | 2013-11-06 | 天津市美好生活科技有限公司 | Inside-mixing atomizing nozzle device |
| CN103463773A (en) * | 2013-09-12 | 2013-12-25 | 中国农业大学 | High-speed pulse air fire-extinguishing spray gun |
| CN209967489U (en) * | 2019-04-25 | 2020-01-21 | 杭州锐研科技有限公司 | Double-channel low-pressure fluid atomization spray head |
-
2019
- 2019-04-25 CN CN201910339353.7A patent/CN109966681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040188104A1 (en) * | 2001-10-11 | 2004-09-30 | Borisov Yulian Y. | Apparatus comprising an atomizer and method for atomization |
| CN103381398A (en) * | 2013-08-08 | 2013-11-06 | 天津市美好生活科技有限公司 | Inside-mixing atomizing nozzle device |
| CN103463773A (en) * | 2013-09-12 | 2013-12-25 | 中国农业大学 | High-speed pulse air fire-extinguishing spray gun |
| CN209967489U (en) * | 2019-04-25 | 2020-01-21 | 杭州锐研科技有限公司 | Double-channel low-pressure fluid atomization spray head |
Non-Patent Citations (1)
| Title |
|---|
| 程啸凡: "《工程流体力学》", 冶金工业出版社, pages: 238 - 239 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509673A (en) * | 2021-05-14 | 2021-10-19 | 浙江佑安高科消防系统有限公司 | High-efficient extinguishing device of double-fluid water mist |
| CN113509673B (en) * | 2021-05-14 | 2022-02-22 | 浙江佑安高科消防系统有限公司 | High-efficient extinguishing device of double-fluid water mist |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2705140C (en) | Fire protection apparatus, systems and methods for addressing a fire with a mist | |
| RU2427402C1 (en) | Kochetov's sprayer | |
| RU2469758C1 (en) | Kochetov liquid-fuel atomiser | |
| RU2416445C1 (en) | Fluid sprayer | |
| US20120241535A1 (en) | Water atomization and mist delivery system | |
| RU2461427C1 (en) | Kochetov's fluid spray nozzle | |
| CN101757825A (en) | Method and equipment for suppressing dust with dry mist | |
| OA12593A (en) | Liquid sprayers. | |
| RU2416442C1 (en) | Kochetov's sprayer | |
| CN209967489U (en) | Double-channel low-pressure fluid atomization spray head | |
| JP2010274249A (en) | Nozzle | |
| RU2542239C1 (en) | Liquid atomiser | |
| CN109966681A (en) | A kind of binary channels low-pressure fluid atomizer | |
| KR20020080371A (en) | Fluid Nozzle Spray and Fire Extinguisher | |
| CN103272355B (en) | Liquid fire extinguishing agent atomizing and spraying head | |
| CN1986078A (en) | Supersonic two-phase flow sprayer with adjustable laval nozzle | |
| CN101306233B (en) | Rotor axis switching bi-functional spray gun | |
| CN201127807Y (en) | Two-phase flow mixed ejection apparatus | |
| US7032830B2 (en) | Method and device for generating a liquid mist | |
| CN201197856Y (en) | Spacing plate slanting-hole flow-guiding liquid atomization device | |
| CN101279125B (en) | Spacing plate slanting-hole flow-guiding liquid atomization device | |
| CN1986077A (en) | Supersonic two-phase flow sprayer | |
| CN201208463Y (en) | Rotor axis switching bifunctional spray gun | |
| CN201384808Y (en) | Portable water mist extinguisher | |
| CN101574564A (en) | Portable water mist fire extinguisher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |