CN202289278U - Composite nozzle - Google Patents
Composite nozzle Download PDFInfo
- Publication number
- CN202289278U CN202289278U CN2011202670724U CN201120267072U CN202289278U CN 202289278 U CN202289278 U CN 202289278U CN 2011202670724 U CN2011202670724 U CN 2011202670724U CN 201120267072 U CN201120267072 U CN 201120267072U CN 202289278 U CN202289278 U CN 202289278U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- section
- chamber
- powder
- area
- 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.)
- Expired - Lifetime
Links
Landscapes
- Nozzles (AREA)
Abstract
The utility model belongs to the field of fire extinguishing equipment, and in particular relates to a composite nozzle used in a dry powder fire-extinguishing system. The composite nozzle is characterized by comprising a nozzle connector connected with a pipe network of the dry powder fire extinguishing system, a first flow channel used for circulation of dry powder air flow and compressing the dry powder air flow is arranged on the axis of the nozzle connector, a nozzle is fixedly connected onto the nozzle connector, a cavity is arranged at the position where the nozzle is connected with the nozzle connector, and the cavity is connected with the first cavity. The nozzle is further provided with a plurality of spraying channels which are in different directions and communicated with the cavity, each spraying channel is composed of an air inlet section, a compressing section, an expanding section and a guide section, the section area of the compressing sections decreases, and the section area of the expanding sections increases. The composite nozzle is large in spraying pressure, long in effective spraying distance and large in covering area of dry powder air flow.
Description
Technical field
The utility model belongs to the fire-fighting fire-extinguishing equipment field, the compound nozzle that particularly a kind of powder extinguishing system is used.
Background technology
The effect of nozzle is that the high speed gas powder mixed flow that carrier pipe is sent here is covered the surface of the object that catches fire uniformly, and then stamps out a fire.
To the requirement of difference protection occasion, common nozzle has once-through type nozzle and wide-angle type nozzle.
The once-through type nozzle; It has a spray road; Described spray road is cylindric, and gas powder mixed flow at a high speed can a bit carry out a fire extinguishing through nozzle to certain fast, and it focuses on certain a bit with the said dry powder that has; Being limited in scope of fire extinguishing, the speed of the gas powder stream that it ejects is confirmed by the pressure of storage powder jar.
Wide-angle type nozzle; It also has only a spray road, and its port of export is processed into the horn-like of profound type, adopts this structure Design effectively to carry out a diffusion to dry-powder air-current; Enlarged the area that nozzle can cover; Because the gas powder has obtained diffusion, its pressure that ejects can decrease, so type coverage that sprays is shorter.
Visible from above-mentioned material, common nozzle all is single spray road, and the area coverage of single pass nozzle is little; The gas powder material directly directly sprays in nozzle from carrier pipe; Have uneven possibility because the gas powder mixes, the gas powder that comes out from nozzle ejection possibly mix inequality, the fire extinguishing poor effect.
Summary of the invention
The utility model is to the deficiency of prior art, and it is big to have designed a kind of expulsion pressure, the far away and big compound nozzle of dry-powder air-current area coverage that sprays of the coverage of injection.
The utility model is realized through following technical scheme:
Compound nozzle; It is characterized in that: it comprises the nozzle connection that is connected with the powder extinguishing system pipe network, and the axis of nozzle connection is provided with the first flow that supplies dry-powder air-current to circulate and dry-powder air-current is compressed, and nozzle is fixedly connected on the nozzle connection; Nozzle is being provided with a chamber with the nozzle connection junction; Described chamber is connected with first flow, also is provided with the spray road that is communicated with chamber of a plurality of different directions on the said nozzle, and described spray road is made up of air inlet section, compression section, expansion segment and guide section; The area of section of described compression section from large to small, the area of section of expansion segment changes from small to big.
The utility model is through being provided with a chamber on nozzle, chamber can carry out a buffering to the primary mixture of coming in from carrier pipe, guarantees that the gas powder stream that ejects from the spray road has uniformity; Promptly improved the mixed type of gas powder, the extinguishing property of the primary mixture that has guaranteed to eject improves the structure in spray road in addition; Come gas powder stream is carried out a compression through the compression section that is provided with, improved the speed of gas powder, the expansion segment of setting carries out a release to the gas powder stream of compression suddenly; Make gas powder stream form a diffusion, enlarged the area that can be ejected into of gas powder stream, the compression of moment discharges the jet velocity that also can improve the gas powder; Improved the jet length of nozzle, the guide section that is provided with is at last realized the guiding to dry powder stream, also can prevent the disperse of dry powder stream simultaneously; Guaranteed the fire extinguishing effect of dry-powder air-current; Adopt many sprays road design, the spray road can be arranged in different directions, the coverage of the nozzle of expansion.
Say that further described chamber is spherical, adopts spherical chamber, can satisfy the requirement of wide-angle nozzle, adopts spherical chamber, maximum can form 180 ° spray regime.
Say that further described chamber is taper, adopt the chamber of taper, can improve the speed of gas powder stream in advance to carrying out prediffusion on the one hand, on the other hand, prediffusion can improve the uniformity of the mixing of gas powder.
Say that further described chamber is cylindrical.
The first flow of described nozzle connection is made up of compression runner and expansionary channel, the area of section of described compression runner from large to small, the area of section of described expansionary channel changes from small to big.
The outlet in described spray road is rounded, adopts the road junction, spray road of circular design, has guidance quality preferably, can prevent the disperse of gas powder degree of flowing through, and guarantees the fire extinguishing effect.
The pressure of the speed that the outlet ovalize in described spray road, elliptic design spray road junction, road can increase gas powder stream when ejecting has improved the range of nozzle.
The end of described nozzle is dome shape, the layout that the design of employing sphere is convenient to spray.
In sum: the utility model is through being provided with a chamber on nozzle, chamber can carry out a buffering to the primary mixture of coming in from carrier pipe, guarantees that the gas powder stream that ejects from the spray road has uniformity; Promptly improved the mixed type of gas powder, the extinguishing property of the primary mixture that has guaranteed to eject improves the structure in spray road in addition; Come gas powder stream is carried out a compression through the compression section that is provided with, improved the speed of gas powder, the expansion segment of setting carries out a release to the gas powder stream of compression suddenly; Make gas powder stream form a diffusion, enlarged the area that can be ejected into of gas powder stream, the compression of moment discharges the jet velocity that also can improve the gas powder; Improved the jet length of nozzle, the guide section that is provided with is at last realized the guiding to dry powder stream, also can prevent the disperse of dry powder stream simultaneously; Guaranteed the fire extinguishing effect of dry-powder air-current; Adopt many sprays road design, the spray road can be arranged in different directions, the coverage of the nozzle of expansion.
Description of drawings
Fig. 1 is the cutaway view of the utility model;
Fig. 2 is the vertical view of the utility model;
1 is nozzle connection among the figure, and 2 is nozzle, and 3 is first flow, and 4 is chamber, and 5 are the spray road, and 51 are the air inlet section, and 52 is the compression section, and 53 is expansion segment, and 54 is guide section, and 11 are the compression runner, and 12 is expansionary channel.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
Compound nozzle as depicted in figs. 1 and 2, it comprises the nozzle connection 1 that is connected with the powder extinguishing system pipe network, the axis of nozzle connection 1 is provided with the first flow 3 that supplies the dry-powder air-current circulation and dry-powder air-current is compressed; Nozzle 2 is fixedly connected on the nozzle connection 1, adopts between nozzle 2 and the nozzle connection 1 to be threaded, and nozzle 2 is that nozzle connection 1 junction is provided with a chamber 4; The chamber 4 that is provided with can carry out a buffering to the primary mixture of coming in from carrier pipe and mix, and in chamber 4, forms a stable air pressure, has guaranteed from spraying the uniformity and the stability of the dry-powder air-current that flows out in road 5; Described chamber 4 is communicated with first flow 3, also is provided with the spray road 5 that is communicated with chamber 4 of a plurality of different directions on the said nozzle 2, and the spray road 5 that different directions is set has enlarged the scope that nozzle can cover; In the present embodiment, on nozzle, be the center of circle, on the circle of Φ 69.5 and Φ 169, be uniformly distributed with respectively and be provided with three spray roads and six spray roads with the nozzle-axis; The angle of the axis in two spray roads of symmetry is 50 °, sprays simultaneously primary mixture is carried out guide effect, and described spray road is made up of air inlet section 51, compression section 52, expansion segment 53 and guide section 54; The area of section of described compression section from large to small; When dry-powder air-current during through the compression section, the speed of dry-powder air-current strengthens, and has increased the flow velocity of dry-powder air-current; When dry-powder air-current process expansion segment; The area of section of expansion segment changes from small to big, and this moment, air velocity had certain slowing down, but the flow velocity of the dry-powder air-current that ejects through compression section and expansion segment is higher than the flow velocity of plain cylindrical form pipeline; Improved the jet length of nozzle; Also promptly realized covering bigger fire-fighting area, dry-powder air-current has increased after through expansion segment and has ejected the area that the back dry-powder air-current can cover, the guiding that the guide section of setting realization is at last flowed dry powder; Also can prevent simultaneously the disperse of dry powder stream, guarantee the fire extinguishing effect of dry-powder air-current.
The described chamber of the utility model can be processed into difform chamber, and commonly used have sphere, a taper and cylindrical:
1, chamber is spherical, adopts spherical chamber, can satisfy the requirement of wide-angle nozzle, adopts spherical chamber, and maximum can form 180 ° spray regime.
2, chamber is taper, adopts the chamber of taper, on the one hand can be to carrying out prediffusion, and prediffusion can improve the uniformity of the mixing of gas powder.
3, described chamber is cylindrical, adopts cylinder design, and is simple in structure, is convenient to processing.
Chamber in the present embodiment adopts conical design.
The first flow 3 of described nozzle connection 1 is made up of with expansionary channel 12 compression runner 11, the diameter of described compression runner 11 from large to small, the diameter of described expansionary channel 12 changes from small to big.
The outlet in described spray road 5 is rounded, adopts the road junction, spray road of circular design, has guidance quality preferably, can prevent the disperse of gas powder degree of flowing through, and guarantees the fire extinguishing effect.
The pressure of the speed that the outlet ovalize in described spray road 5, elliptic design spray road junction, road can increase gas powder stream when ejecting has improved the range of nozzle.
The end of described nozzle is dome shape, the layout that the design of employing sphere is convenient to spray.
Described fire pot type of being is oval arranges that the length of major axis is 5m, and the length of minor axis is 4m, has proved that through the experiment on the picture the described nozzle of the utility model has bigger fire extinguishing scope.
In sum: the utility model is through being provided with a chamber on nozzle, chamber can carry out a buffering to the primary mixture of coming in from carrier pipe, guarantees that the gas powder stream that ejects from the spray road has uniformity; Promptly improved the mixed type of gas powder, the extinguishing property of the primary mixture that has guaranteed to eject improves the structure in spray road in addition; Come gas powder stream is carried out a compression through the compression section that is provided with, improved the speed of gas powder, the expansion segment of setting carries out a release to the gas powder stream of compression suddenly; Make gas powder stream form a diffusion, enlarged the area that can be ejected into of gas powder stream, the compression of moment discharges the jet velocity that also can improve the gas powder; Improved the jet length of nozzle, the guide section that is provided with is at last realized the guiding to dry powder stream, also can prevent the disperse of dry powder stream simultaneously; Guaranteed the fire extinguishing effect of dry-powder air-current; Adopt many sprays road design, the spray road can be arranged in different directions, the coverage of the nozzle of expansion.
Claims (8)
1. compound nozzle; It is characterized in that: it comprises the nozzle connection that is connected with the powder extinguishing system pipe network, and the axis of nozzle connection is provided with the first flow that supplies dry-powder air-current to circulate and dry-powder air-current is compressed, and nozzle is fixedly connected on the nozzle connection; Nozzle is being provided with a chamber with the nozzle connection junction; Described chamber is connected with first flow, also is provided with the spray road that is communicated with chamber of a plurality of different directions on the said nozzle, and described spray road is made up of air inlet section, compression section, expansion segment and guide section; The area of section of described compression section from large to small, the area of section of expansion segment changes from small to big.
2. compound nozzle according to claim 1 is characterized in that: described chamber is for spherical.
3. compound nozzle according to claim 1 is characterized in that: described chamber is taper.
4. compound nozzle according to claim 1 is characterized in that: described chamber is cylindrical.
5. compound nozzle according to claim 1; It is characterized in that: the first flow of described nozzle connection is made up of compression runner and expansionary channel; The area of section of described compression runner from large to small, the area of section of described expansionary channel changes from small to big.
6. compound nozzle according to claim 1 is characterized in that: the outlet in described spray road is rounded.
7. compound nozzle according to claim 1 is characterized in that: the outlet ovalize in described spray road.
8. compound nozzle according to claim 1 is characterized in that: the end of described nozzle is dome shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202670724U CN202289278U (en) | 2011-07-27 | 2011-07-27 | Composite nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202670724U CN202289278U (en) | 2011-07-27 | 2011-07-27 | Composite nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289278U true CN202289278U (en) | 2012-07-04 |
Family
ID=46358270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202670724U Expired - Lifetime CN202289278U (en) | 2011-07-27 | 2011-07-27 | Composite nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289278U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350030A (en) * | 2011-07-27 | 2012-02-15 | 江苏中瑞电保智能装备有限公司 | Composite nozzle |
| CN104492012A (en) * | 2014-12-31 | 2015-04-08 | 西安新竹防灾救生设备有限公司 | Large-spreading-angle foam fire-extinguishing sprayer |
-
2011
- 2011-07-27 CN CN2011202670724U patent/CN202289278U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350030A (en) * | 2011-07-27 | 2012-02-15 | 江苏中瑞电保智能装备有限公司 | Composite nozzle |
| CN104492012A (en) * | 2014-12-31 | 2015-04-08 | 西安新竹防灾救生设备有限公司 | Large-spreading-angle foam fire-extinguishing sprayer |
| CN104492012B (en) * | 2014-12-31 | 2019-01-18 | 西安新竹防灾救生设备有限公司 | A kind of big angle of flare foam fire-fighting spray head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102350030A (en) | Composite nozzle | |
| CN105148429B (en) | A kind of wind-force froth fire extinguishing system | |
| CN102716827B (en) | Gas-liquid two-phase pressure-balanced wide-angle uniformly-distributed mist nozzle | |
| CN102698396B (en) | Water mist sprayer | |
| JP5500475B2 (en) | Two-fluid nozzle | |
| CN201921369U (en) | Bubble atomization water mist sprayer | |
| CN105169598A (en) | Air foam fire gun | |
| CN111097611A (en) | Water-gas mixing atomizing nozzle and atomizing device | |
| CN111729770A (en) | Atomizing nozzle | |
| CN202289278U (en) | Composite nozzle | |
| CN110976120B (en) | Centrifugal paint nozzle for accelerating atomization by reverse airflow | |
| CN203598972U (en) | Wet spraying machine spray head provided with two accelerating agent inlets and capable of reducing sprayed concrete rebound rate | |
| CN201375769Y (en) | Novel compound extinguishing spry gun structure | |
| CN105126277B (en) | A kind of big flow compressed-air foam mixing arrangement | |
| CN201524627U (en) | Spray gun nozzle for intersection-converge spraying outside the spray gun | |
| RU2505328C1 (en) | Foam generator | |
| CN203459197U (en) | Jet device | |
| CN103405873A (en) | Combined fine water mist sprinkler head | |
| CN211801733U (en) | Water-gas mixing atomizing nozzle and atomizing device | |
| CN111701176A (en) | Special atomizing nozzle for perfluorohexanone fire extinguisher and use method thereof | |
| CN210753292U (en) | Novel atomizing nozzle based on bubble cutting | |
| CN207605277U (en) | A kind of fire monitor head and the fire monitor using the fire monitor head | |
| CN208793012U (en) | A kind of concrete spraying machine accelerator mixing arrangement | |
| CN202741264U (en) | Atomizing nozzle for spraying granulation | |
| CN207152915U (en) | A kind of self-priming air foam rifle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |