CN202199013U - Nested nozzle - Google Patents
Nested nozzle Download PDFInfo
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- CN202199013U CN202199013U CN2011202671360U CN201120267136U CN202199013U CN 202199013 U CN202199013 U CN 202199013U CN 2011202671360 U CN2011202671360 U CN 2011202671360U CN 201120267136 U CN201120267136 U CN 201120267136U CN 202199013 U CN202199013 U CN 202199013U
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- core
- nozzle
- spray
- dry powder
- nested
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model belongs to dry powder extinguishing equipment, in particular relates to a nested nozzle for extinguishing with dry powder. The nested nozzle comprises a nozzle main body connected with a pipe network, wherein the nozzle main body is internally provided with a nozzle flow channel; the nozzle flow channel is internally embedded with a spray core; the spray core is fixedly connected to the nozzle main body with the using of a fixing frame; the spray core and the nozzle flow channel form an annular spray channel therebetween; and the axis of the spray core is further provided with a spray flow nozzle. According to the nested nozzle disclosed by the utility model, an air flow hood is formed at the periphery; the dry powder is sprayed out of the spray flow channel at the centre of the air flow hood to ensure a higher spray speed; the dry powder impacts on ignition points and the impacted dry powder can be sufficiently dispersed to reduce influence of the air flow in the surroundings to the dry powder flow, so that the maximum extinguishing efficiency of the dry powder is guaranteed.
Description
Technical field
The utility model belongs to dry powder extinguishing installation, particularly a kind of nested type nozzle of dry-chemical fire extinguishing.
Background technology
All there is significant impact in fire for people's productive life and economic development, because of the research and development of material in the fire-fighting equipment field are that people relatively pay close attention to.
In fire extinguishing system, the effect of nozzle is the surface that the high speed primary mixture that carrier pipe is sent here is covered uniformly the object that catches fire, and then realizes fire extinguishing.Common nozzle has once-through type nozzle and wide-angle type nozzle.
The once-through type nozzle flows direct injection with dry powder blend and comes out the place that catches fire is impacted, and dry powder is put out a fire, and when the wind speed of surrounding environment was big, the dry powder that scatters after the impact loose for wind easily, the influence effect of putting out a fire.
The nozzle of wide-angle type, its port adopts trumpet-shaped design, such being designed be beneficial to dry powder in air, carry out one the diffusion and fill the air; The area that the ability enlarged nozzle can cover, but bring a problem like this, because the dry powder of nozzle periphery spreads; Its speed can decrease; When the surrounding environment wind speed was big, the dry mash of nozzle periphery possibly can't be fallen ignition point and put out a fire, and influences the fire extinguishing effect of extinguishing device.
Can know from above-mentioned material; Existing nozzle is because the defective of its structure, and the dry powder fluid capacitance that it ejects is vulnerable to the influence of surrounding air air-flow, is unfavorable for that dry powder can effectively fall ignition point and put out a fire; Possibly delay best fire extinguishing opportunity, the fire extinguishing effect is not good enough.
Summary of the invention
The utility model is to the deficiency of prior art; Design a kind of outside and can form an air bell; The dry powder that injection runner in the middle of the air bell ejects can guarantee a higher jet velocity, and ignition point is impacted, and the dry powder after the impact can carry out sufficient disperse; The air draught of the minimizing surrounding environment that forms is to the influence of dry powder stream, and assurance dry powder can be given full play to its fire extinguishing effect.
The utility model is realized through following technical scheme:
The nested type nozzle; It comprises the nozzle body that is connected with pipe network; It is characterized in that: described nozzle body set inside has nozzle flow channel, is nested with at nozzle flow channel and is provided with a spray core, and described spray core is fixedly connected on the nozzle body through fixed mount; Form an annular spray road between described spray core and the nozzle body, on the spray wire mandrel, also be provided with one and spray runner.
The end of described spray core offers a groove, is provided with the spout regulating block in the groove, and the spout regulating block is provided with and the adjustment hole that sprays the runner coaxial line.
Described spout regulating block adjustment hole is made up of first conical surface hole and second conical surface hole, and the angle between two conical surfaces in described second conical surface hole is between 10 °～70 °.
Described spray core comprises only core and composite core.
Described composite core is made up of the taper combination core of a plurality of different angles, and described low-angle taper combination core is nested in the taper combination in-core of wide-angle.
The scope of the tapering of described taper combination core is at 30 °～90 °.
The inwall of described nozzle flow channel one end is provided with internal thread, and it is connected with pipe network.
Adopt technique scheme, the utlity model has following advantage:
1, forms an annular spray road between described spray core and the nozzle body; The gas powder stream that number comes from the annular spray road can form an air bell; The air of reduction surrounding environment flows to the influence of the dry powder of disperse, has prevented that the dry powder of disperse from being dispelled, and has improved the fire extinguishing effect.
2, the spout regulating block of described spray core end setting; The angle of injection that can the opposing jet road is carried out an adjusting; Regulate the jet velocity of the dry powder stream that sprays runner, adopt different angle design can adjust the diffusance of intermediate injection air-flow, improve the spread of intermediate injection air-flow.
3, the utility model adopts composite core can form an injection dry powder stream cover that multi-angle is compound, prevents the influence of outer gas stream to the dry powder of disperse, has enlarged the scope of the fire extinguishing of dry-powder air-current simultaneously.
Description of drawings
Fig. 1 is the cutaway view of embodiment one;
Fig. 2 be Fig. 1 K to view;
Fig. 3 is the enlarged drawing at the A place of Fig. 1;
Fig. 4 is the cutaway view of embodiment two;
1 is nozzle body among the figure, and 2 for spraying runner, and 3 are the spray core, and 4 is fixed mount; 5 is the annular spray road, and 6 for spraying runner, and 31 is groove, and 32 is the spout regulating block; 33 is adjustment hole, and 331 is first conical surface hole, and 332 is second conical surface hole, and 7 is 60 ° of conical surface combination cores; 8 is 30 ° of conical surface combination cores, and 9 is the first annular spray road, and 10 is the second annular spray road, and 11 is internal thread.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
Embodiment one:
Nested type nozzle as shown in Figure 1, it comprises the nozzle body 1 that is connected with pipe network, described nozzle body set inside has nozzle flow channel 2; Nozzle flow channel 2 supplies high speed dry powder air communication mistake, is nested with at nozzle flow channel 2 and is provided with a spray core 3, and this embodiment is with the spray core that adopts only core as this embodiment; The tapering of described spray core 3 is 60 °, and described spray core 3 is fixedly connected on the nozzle body 1 through fixed mount 4, and described fixed mount is as shown in Figure 2; It is a brace with a plurality of connection pawls, and spray core 3 is fixedly connected on the brace through screw, and brace is fixed on the nozzle body 1 through connecting pawl; Realization is fixing to spray core 3 and nozzle body 1, fixedly contacts between rear nozzle body 1 and the spray core 3 to connect, and sprays core 3 unsettled being arranged in the nozzle flow channel 1; Form an annular spray road 5 between described spray core 3 and the nozzle body 1, the dry-powder air-current that ejects from the annular spray road can form an aerosol cover, reduces the dry powder that outer gas stream dispels disperse; Improve the fire extinguishing effect, on spray core 3 axis, also be provided with one and spray runner 6, spray the dry-powder air-current that runner 6 can eject the high pressure straight line; Dry-powder air-current directly acts on the burning things which may cause a fire disaster surface; Dry-powder air-current bump back forms the dry powder district of a disperse, and the condition of isolated burning things which may cause a fire disaster burning is put out a fire.
The end of described spray core 3 offers a groove 31, is provided with spout regulating block 32 in the groove 31, and spout regulating block 32 is provided with adjustment hole 33; Adjustment hole and injection runner coaxial line, described spout regulating block 33 adjustment holes are made up of first conical surface hole 331 and second conical surface hole 332, and the angle between two conical surfaces in described second conical surface hole 332 is between 10 °～70 °; A compression is carried out to dry-powder air-current in first conical surface hole, improves the pressure of dry-powder air-current, and second conical surface hole is carried out one to dry-powder air-current and discharged and diffusion; Improved the jet velocity of dry-powder air-current; Enlarge the area that dry-powder air-current can cover, dry powder has been spread, also can improve the speed of its disperse in air; Ability fast shut-off burning condition is realized arc extinguishing.
The inwall of described nozzle flow channel one end is provided with internal thread 11, and it is connected with pipe network, and adopting is threaded has better seal property, meets the requirement of powder extinguishing system to sealing property, and adopting simultaneously is threaded also is convenient to processing, has reduced manufacture difficulty.
Embodiment two:
Nested type nozzle as shown in Figure 4, it comprises the nozzle body 1 that is connected with pipe network, described nozzle body set inside has nozzle flow channel 2; Nozzle flow channel 2 supplies high speed dry powder air communication mistake, is nested with at nozzle flow channel 2 and is provided with a spray core 3, and the spray core 3 described in this embodiment is a composite core; Described composite core has by the taper combination core 8 of 60 ° taper combination core 7 with 30 ° and constitutes, and 60 ° of tapers combination cores 7 directly are nested in the nozzle flow channel 1, and described 30 ° taper combination core 8 is nested in 60 ° of tapers and makes up in the cores 7; Described composite core is fixedly connected on the nozzle body 1 through fixed mount 4, realizes to spraying the fixing of core 3 and nozzle body 1 fixedly not contact connection between rear nozzle body 1 and the spray core 3; Spray core 3 unsettled being arranged in the nozzle flow channel 1 form between described 60 ° of tapers combination core 7 and the nozzle body 1 between 9, two the taper combinations in the first annular spray road core and have formed the second annular spray road 10; The dry-powder air-current that ejects from the first annular spray road and the second annular spray road can form an aerosol cover, reduces the dry powder that outer gas stream dispels disperse, improves the fire extinguishing effect; The dry-powder air-current Mass fast that the while second annular spray road 10 ejects; Improve blow-off velocity, on the axis of 30 ° of taper combination cores, also be provided with one and spray runner, spray the dry-powder air-current that runner can eject the high pressure straight line; Dry-powder air-current directly acts on the burning things which may cause a fire disaster surface; Dry-powder air-current bump back forms the dry powder district of a disperse, and the condition of isolated burning things which may cause a fire disaster burning is put out a fire.
The scope of the tapering of described taper combination core is at 30 °～90 °, and angle commonly used is by 90 °, 60 °, 45 ° and 30 °, and described taper combination core can only be a nested low-angle taper combination core in the wide-angle taper combination core.
In sum, the utility model forms the annular spray road through structure of nozzle is improved between spray core and nozzle body; The dry-powder air-current that ejects from the annular spray road can form an aerosol cover, reduces the dispel effect of extraneous air air-flow to the dry powder of disperse; Also can quicken simultaneously dry powder to disperse all around, in addition, the utility model adopts the design of composite core; Can prevent on the one hand the influence of air outside air-flow, the design of different angles has on the other hand increased the coverage of nozzle; The road of the annular of different angles spray simultaneously also can quicken dry powder dispersing, cuts off burning condition fast, realizes quick extinguishing.
Claims (7)
1. nested type nozzle; It comprises the nozzle body that is connected with pipe network; It is characterized in that: described nozzle body set inside has nozzle flow channel, is nested with at nozzle flow channel and is provided with a spray core, and described spray core is fixedly connected on the nozzle body through fixed mount; Form an annular spray road between described spray core and the nozzle body, on the spray wire mandrel, also be provided with one and spray runner.
2. nested type nozzle according to claim 1 is characterized in that: the end of described spray core offers a groove, is provided with the spout regulating block in the groove, and the spout regulating block is provided with and the adjustment hole that sprays the runner coaxial line.
3. nested type nozzle according to claim 2 is characterized in that: described spout regulating block adjustment hole is made up of first conical surface hole and second conical surface hole, and the angle between two conical surfaces in described second conical surface hole is between 10 °～70 °.
4. nested type nozzle according to claim 1 is characterized in that: described spray core comprises only core and composite core.
5. nested type nozzle according to claim 4 is characterized in that: described composite core is made up of the taper combination core of a plurality of different angles, and described low-angle taper combination core is nested in the taper combination in-core of wide-angle.
6. nested type nozzle according to claim 5 is characterized in that: the scope of the tapering of described taper combination core is at 30 °～90 °.
7. nested type nozzle according to claim 1 is characterized in that: the inwall of described nozzle flow channel one end is provided with internal thread, and it is connected with pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202671360U CN202199013U (en) | 2011-07-27 | 2011-07-27 | Nested nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202671360U CN202199013U (en) | 2011-07-27 | 2011-07-27 | Nested nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202199013U true CN202199013U (en) | 2012-04-25 |
Family
ID=45963154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202671360U Expired - Lifetime CN202199013U (en) | 2011-07-27 | 2011-07-27 | Nested nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202199013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327683A (en) * | 2011-07-27 | 2012-01-25 | 江苏中瑞电保智能装备有限公司 | Embedded nozzle |
| CN114952033A (en) * | 2022-06-22 | 2022-08-30 | 安徽东海裕祥智能装备科技有限公司 | Novel laser cutting nozzle and laser cutting device with same |
-
2011
- 2011-07-27 CN CN2011202671360U patent/CN202199013U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327683A (en) * | 2011-07-27 | 2012-01-25 | 江苏中瑞电保智能装备有限公司 | Embedded nozzle |
| CN114952033A (en) * | 2022-06-22 | 2022-08-30 | 安徽东海裕祥智能装备科技有限公司 | Novel laser cutting nozzle and laser cutting device with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |