CN109603060A - A kind of air foam device-specific spray gun - Google Patents
A kind of air foam device-specific spray gun Download PDFInfo
- Publication number
- CN109603060A CN109603060A CN201811535677.XA CN201811535677A CN109603060A CN 109603060 A CN109603060 A CN 109603060A CN 201811535677 A CN201811535677 A CN 201811535677A CN 109603060 A CN109603060 A CN 109603060A
- Authority
- CN
- China
- Prior art keywords
- ontology
- reducing pipe
- flow control
- spray gun
- control structure
- 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.)
- Granted
Links
- 239000006260 foam Substances 0.000 title claims abstract description 33
- 239000007921 spray Substances 0.000 title claims abstract description 28
- 230000008676 import Effects 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims description 31
- 208000002925 dental caries Diseases 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 18
- 239000003570 air Substances 0.000 description 17
- 239000008246 gaseous mixture Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 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
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a kind of air foam device-specific spray guns, has the three-level flow control structure being made of ontology and end reducing pipe, body interior forms cavity, the top of ontology is equipped with entrance reducing pipe, the caliber of entrance reducing pipe is gradually reduced by import to outlet forms I grade of flow control structure, the lower part of ontology is equipped with intermediate taper diffuser, the caliber of intermediate taper diffuser is gradually increased by import to outlet forms II grade of flow control structure, ontology lower end outside is socketed end reducing pipe, the caliber of end reducing pipe is gradually reduced by import to outlet forms III grade of flow control structure.Beneficial effects of the present invention: it can produce high quality foam stream more evenly, stable, non-breakable, enhance the ability for being adhered to comburant surface or penetrating into inside comburant, keep time of the hydropexis on comburant longer, so that its blow-off velocity is faster and fire source is not easy re-ignition.
Description
Technical field
The present invention relates to a kind of air foam device-specific spray guns.
Background technique
Compressed-air foam is a kind of high energy storage foam, is foamed by the premixing of foam dope, water and compressed air,
Fire-fighting technique is that it is tiny, uniform, stable, non-breakable to generate particle by the active injecting compressed air at gas-liquid mixed room
High quality foam, and various places are protected by end generator.Compared with conventional foam fire-fighting technique, volume is inhaled
Air capacity is bigger, the high quality foam of generation more evenly, it is stable, non-breakable, and enhance and be adhered to comburant surface or infiltration
Enter the ability inside comburant, it is longer that compressed air foam extinguishing medium is trapped in comburant surface time, with internal system
Firing-fighting medium is continuously generated, and the coating of comburant upper surface persistently thickens, and not only can quickly control the live intensity of a fire, but also can be effective
Prevent fire source re-ignition.
One of critical component that compressed-air foam generates i.e. above-mentioned end generator, the purpose of the invention patent are to set
Count a kind of end generating device that can produce high quality foam.A kind of air foam device-specific spray gun, can
Reach the above effect.Compared with the spray gun that conventional foam uses, this spray gun can establish spray gun structure pass corresponding with shape of plasma jet
System forms different outlets by changing filter pore size, the terminal end shape of baffle and the draw ratio of spray gun structure of spray gun
Jet stream state, spray distance and firing-fighting medium land form, and technical advantage is apparent.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes a kind of air foam device-specific spray gun,
With high in machining efficiency, the safer advantage of production.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of air foam device-specific spray gun has the three-level flow control structure being made of ontology and end reducing pipe,
The body interior forms cavity, and the top of the ontology is equipped with entrance reducing pipe, and the caliber of the entrance reducing pipe is by import
Be gradually reduced to form I grade of flow control structure to outlet, be equipped in the entrance reducing pipe flow guide sleeve and on the upside of the flow guide sleeve
The lower part of the baffle of connection, the ontology is equipped with intermediate taper diffuser, and the caliber of the intermediate taper diffuser is by import
It is gradually increased to form II grade of flow control structure to outlet, pilot pin, filtering body and filtering is equipped in the intermediate taper diffuser
Cover, the filtering body is close to the intermediate taper diffuser inner wall installation, covers the filter mantle above the filtering body, described
The pilot pin is also welded in filtering body upper end, and the ontology lower end outside is socketed the end reducing pipe, the end reducing pipe
It is connect by screw thread with the ontology, the caliber of the end reducing pipe is gradually reduced by import to outlet forms III grade of flow control knot
Structure.
Further, the flow guide sleeve is cross bracket, and the cross bracket includes four cavitys, cross branch
Frame top is equipped with bullet-headed baffle.
Further, for the filtering body in cone, cone angle is 35 ° ~ 40 °, and aperture of filter screen Φ is 1.5mm ~ 2.5mm.
Further, the end reducing pipe and the ontology junction are additionally provided with filter ring.
Further, the filter ring is equipped with strainer, and the opening of sieve of the strainer is cylindrical, aperture of filter screen 2mm.
Beneficial effects of the present invention: it can be produced by the three-level flow control structure and multistage filtering component of this programme and equal fine-structure mesh
Raw high quality foam stream more evenly, stable, non-breakable enhances and is adhered to comburant surface or penetrates into inside comburant
Ability keeps time of the hydropexis on comburant longer, so that its blow-off velocity is faster and fire source is not easy re-ignition.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of air foam device-specific spray gun structure schematic diagram described according to embodiments of the present invention；
Fig. 2 is a kind of air foam device-specific gun inlets reducing pipe internal diversion described according to embodiments of the present invention
Cover sectional view；
Fig. 3 is mistake in a kind of air foam device-specific spray gun centre taper diffuser described according to embodiments of the present invention
The sectional view of filter body；
In figure: 1, ontology；2, baffle；3, flow guide sleeve；4, filter mantle；5, filtering body；6, filter ring；7, end reducing pipe；8,
Pilot pin.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figure 1, a kind of air foam device-specific spray gun according to an embodiment of the present invention, has by ontology 1
And the three-level flow control structure of end reducing pipe composition, cavity is formed inside ontology 1, the top of ontology 1 is equipped with entrance reducing pipe,
Be equipped in entrance reducing pipe flow guide sleeve 3 and with the baffle 2 that is connected on the upside of flow guide sleeve 3, the lower part of ontology is equipped with intermediate taper
Diffuser, pilot pin 8, filtering body 5 and filter mantle 4 are equipped in intermediate taper diffuser, and filtering body 5 is close to intermediate taper diffusion
Inside pipe wall is installed, and filter mantle 4 is covered above filtering body 5, and pilot pin 8, the socket of 1 lower end outside of ontology are also welded in 5 upper end of filtering body
There is end reducing pipe, end reducing pipe is connect by screw thread with ontology 1, and end reducing pipe and 1 junction of ontology are additionally provided with filtering
Ring 6.
In order to facilitate understanding above-mentioned technical proposal of the invention, below by way of in specifically used mode to of the invention above-mentioned
Technical solution is described in detail.
When specifically used, a kind of air foam device-specific spray gun according to the present invention:
The three-phase gas-liquid mixture stream of compressed air, water and foam dope enters the upper plenum of ontology 1, and the upper plenum of ontology 1 is
Entrance reducing pipe, Fig. 2 are entrance reducing pipe internal structure sectional views, form I grade of flow control structure, entrance by thick and thin reducing pipe
Reducing pipe internal upper part is equipped with baffle 2, and for baffle 2 in bullet-headed, surface is smooth, three-phase gaseous mixture liquid stream along baffle 2 to
Under be injected into flow guide sleeve 3, flow guide sleeve 3 is in cross bracket, and cross bracket includes four cavitys, and three-phase gas-liquid mixture enters
Cavity can prevent gas-liquid flow from layer occurs and split or form annular fluidised form, and will not influence the speed and continuously of three-phase gaseous mixture liquid stream
Property.Three-phase gaseous mixture liquid stream slides into four cavitys of flow guide sleeve 3 along the curved surface of bullet-headed baffle 2, tapered into entrance
The least significant end of pipe, fluid pass through by thick and thin reducing pipe, and speed increases severely, and three-phase gas-liquid mixture stream passes through entrance reducing pipe, shape
At the three-phase gaseous mixture liquid stream of high speed injection.
High speed spurting three-phase gaseous mixture liquid stream subsequently enters the lower cavity of ontology 1, and the lower cavity of ontology 1 is intermediate taper
Diffuser forms II grade of flow control structure by thin and thick intermediate taper diffuser, multistage mistake is equipped with inside intermediate taper diffuser
Component and equal fine-structure mesh, including filter mantle 4, filtering body 5 are filtered, because the three-phase gas-liquid mixture entered in intermediate taper diffuser is in high speed
Spurting, intermediate taper diffuser is interior to be equipped with pilot pin 8, and pilot pin 8 and 5 upper end of filtering body are welded, and guarantee filtering body 5 by a high speed
When the impact of spurting three-phase gaseous mixture liquid stream, three-phase gaseous mixture liquid stream effectively can be filtered and be refined, was cased on the upside of filtering body 5
Filter bowl 4 can carry out primary filtration and refinement to three-phase gas-liquid mixture stream.
Fig. 3 is the sectional view of filtering body 5 in intermediate taper diffuser, and the section of filtering body 5 is in cone, cone angle θ, θ
35 ° ~ 40 ° of optimum valuing range, the best value of aperture of filter screen Φ is 1.5mm ~ 2.5mm.High speed spurting three-phase gaseous mixture liquid stream
By-pass filtration refinement is carried out by filter mantle 4,5 front end of filtering body is subsequently entered, a large amount of threads is cut into, using filtering body
Single diffusion micropore emulsification gas-liquid flow is formed after 5.
Single diffusion micropore emulsification gas-liquid flow enters end reducing pipe 7, and end reducing pipe 7 is connect by screw thread with ontology 1,
1 end of ontology is pressed with filter ring 6, and filter ring 6 is equipped with strainer, and opening of sieve is cylindrical, aperture of filter screen 2mm, single diffusion
Micropore emulsification gas-liquid flow carries out further filtering refinement by filter ring 6, and reducing pipe 7 caliber in end gradually tapers up to form III grade
Flow control structure, capable of preventing foam stream, deformation occurs or forms hole, finally obtains the foam stream of smooth cylindrical.
In conclusion can by means of three-level flow control structure and multistage filtering component of the invention and equal fine-structure mesh, this spray gun
High quality foam stream more evenly, stable, non-breakable is generated, is enhanced and is adhered to comburant surface or penetrates into inside comburant
Ability, keep time of the hydropexis on comburant longer, so that its blow-off velocity is faster and fire source is not easy re-ignition.
This spray gun can also pass through the filtering body for changing spray gun by establishing the corresponding relationship of spray gun structure and shape of plasma jet
Taper and aperture of filter screen, the terminal end shape of baffle and spray gun structure draw ratio, formed different outlet jet states, spray
Penetrate distance and firing-fighting medium landing form.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of air foam device-specific spray gun, which is characterized in that have and be made of ontology (1) and end reducing pipe
Three-level flow control structure, form cavity inside the ontology (1), the top of the ontology (1) is equipped with entrance reducing pipe, it is described enter
The caliber of mouth reducing pipe is gradually reduced by import to outlet forms I grade of flow control structure, and flow guide sleeve is equipped in the entrance reducing pipe
(3) and with the flow guide sleeve (3) upside the baffle (2) connecting, the lower part of the ontology (1) are spread equipped with intermediate taper
Pipe, the caliber of the intermediate taper diffuser is gradually increased by import to outlet forms II grade of flow control structure, the intermediate taper
Pilot pin (8), filtering body (5) and filter mantle (4) are equipped in diffuser, the filtering body (5) is close to the intermediate taper and is expanded
The installation of separate tube inner wall, filtering body (5) top cover the filter mantle (4), and it is described fixed that filtering body (5) upper end is also welded
Position needle (8), ontology (1) lower end outside are socketed the end reducing pipe (7), the end reducing pipe (7) by screw thread with
Ontology (1) connection, the caliber of the end reducing pipe (7) is gradually reduced by import to outlet forms III grade of flow control structure.
2. a kind of air foam device-specific spray gun according to claim 1, which is characterized in that the flow guide sleeve
It (3) is cross bracket, the cross bracket includes four cavitys, and cross bracket top is equipped with bullet-headed baffle
(2).
3. a kind of air foam device-specific spray gun according to claim 1, which is characterized in that the filtering body
(5) in cone, cone angle is 35 ° ~ 40 °, and aperture of filter screen Φ is 1.5mm ~ 2.5mm.
4. a kind of air foam device-specific spray gun according to claim 1, which is characterized in that the end is tapered
Pipe (7) and the ontology (1) junction are additionally provided with filter ring (6).
5. a kind of air foam device-specific spray gun according to claim 4, which is characterized in that the filter ring
(6) it is equipped with strainer, the opening of sieve of the strainer is cylindrical, aperture of filter screen 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535677.XA CN109603060B (en) | 2018-12-14 | 2018-12-14 | Special spray gun of air foam fire extinguishing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535677.XA CN109603060B (en) | 2018-12-14 | 2018-12-14 | Special spray gun of air foam fire extinguishing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109603060A true CN109603060A (en) | 2019-04-12 |
| CN109603060B CN109603060B (en) | 2022-03-15 |
Family
ID=66010048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811535677.XA Active CN109603060B (en) | 2018-12-14 | 2018-12-14 | Special spray gun of air foam fire extinguishing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109603060B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203188Y (en) * | 1994-08-05 | 1995-07-12 | 陈玉凡 | High-efficiency flow deflector spray head |
| CN101251024A (en) * | 2008-04-08 | 2008-08-27 | 中国矿业大学 | Foam generating device for coal mine dust removal |
| CN102107055A (en) * | 2011-02-22 | 2011-06-29 | 广东联塑科技实业有限公司 | Water gun for fire protection |
| CN202381458U (en) * | 2011-12-29 | 2012-08-15 | 新疆石油勘察设计研究院（有限公司） | Rotational flow disturbance-preventing water delivery device |
| CN202441680U (en) * | 2012-01-17 | 2012-09-19 | 绍兴银球压力容器制造有限公司 | Anti-vortex device |
| CN203183550U (en) * | 2013-02-01 | 2013-09-11 | 东莞市永强汽车制造有限公司 | Foam mixer |
| CN205235239U (en) * | 2015-12-28 | 2016-05-18 | 王志明 | Well multiple foam produces rifle fast |
| CN105861087A (en) * | 2016-05-03 | 2016-08-17 | 中国科学院力学研究所 | Natural gas dehumidifying device |
| CN207286507U (en) * | 2017-04-07 | 2018-05-01 | 山东宏达科技集团有限公司 | A kind of liquid nitrogen power fire monitor |
| CN108855662A (en) * | 2018-07-31 | 2018-11-23 | 哈尔滨工程大学 | A kind of porous direct rotary mixing Cavitation jet nozzle |
-
2018
- 2018-12-14 CN CN201811535677.XA patent/CN109603060B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203188Y (en) * | 1994-08-05 | 1995-07-12 | 陈玉凡 | High-efficiency flow deflector spray head |
| CN101251024A (en) * | 2008-04-08 | 2008-08-27 | 中国矿业大学 | Foam generating device for coal mine dust removal |
| CN102107055A (en) * | 2011-02-22 | 2011-06-29 | 广东联塑科技实业有限公司 | Water gun for fire protection |
| CN202381458U (en) * | 2011-12-29 | 2012-08-15 | 新疆石油勘察设计研究院（有限公司） | Rotational flow disturbance-preventing water delivery device |
| CN202441680U (en) * | 2012-01-17 | 2012-09-19 | 绍兴银球压力容器制造有限公司 | Anti-vortex device |
| CN203183550U (en) * | 2013-02-01 | 2013-09-11 | 东莞市永强汽车制造有限公司 | Foam mixer |
| CN205235239U (en) * | 2015-12-28 | 2016-05-18 | 王志明 | Well multiple foam produces rifle fast |
| CN105861087A (en) * | 2016-05-03 | 2016-08-17 | 中国科学院力学研究所 | Natural gas dehumidifying device |
| CN207286507U (en) * | 2017-04-07 | 2018-05-01 | 山东宏达科技集团有限公司 | A kind of liquid nitrogen power fire monitor |
| CN108855662A (en) * | 2018-07-31 | 2018-11-23 | 哈尔滨工程大学 | A kind of porous direct rotary mixing Cavitation jet nozzle |
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| Publication number | Publication date |
|---|---|
| CN109603060B (en) | 2022-03-15 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yueyong Inventor after: Yang Zhen Inventor after: Gao Xuhui Inventor after: Zhang Jie Inventor after: Liu Haiying Inventor after: Zeng Zhonghua Inventor before: Zhang Jie Inventor before: Yang Zhen Inventor before: Wang Yueyong Inventor before: Zeng Zhonghua Inventor before: Gao Xuhui Inventor before: Liu Haiying |
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