CN204319588U - A kind of nozzle for dry powder extinguishing installation - Google Patents
A kind of nozzle for dry powder extinguishing installation Download PDFInfo
- Publication number
- CN204319588U CN204319588U CN201420773410.5U CN201420773410U CN204319588U CN 204319588 U CN204319588 U CN 204319588U CN 201420773410 U CN201420773410 U CN 201420773410U CN 204319588 U CN204319588 U CN 204319588U
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- CN
- China
- Prior art keywords
- jet pipe
- nozzle
- contraction section
- dry powder
- divergence cone
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- 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.)
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Abstract
For a nozzle for dry powder extinguishing installation, be arranged on the gas outlet place of dry powder extinguishing installation pressurized tank, nozzle interior forms the jet pipe of hollow.Jet pipe is made up of conical jet pipe contraction section and conical nozzle divergence cone; Jet pipe contraction section and nozzle divergence cone are to together with withstanding on; Jet pipe contraction section is rectilinear conical tube, and nozzle divergence cone is the conical tube of arc line shaped, and the curve that jet pipe is then combined into by orthoscopic taper and the taper of nozzle divergence cone circular arc type of jet pipe contraction section rotates and formed.The utility model can make air-flow effectively grind dry powder under the effect of jet pipe, makes dry powder refinement thorough.Jet parts is easily processed, and its processing technology is simple, and cost is low, and efficiency is high, superior performance, is applicable to producing in enormous quantities.
Description
Technical field
The utility model belongs to fire-fighting domain, specifically belongs to the parts in extinguishing device.
Background technology
In modern society, for the consideration of safety factor, need to use extinguishing device in a lot of occasion, and because the reason of several factors, make can only use dry powder extinguisher in some occasions.In addition, because dry-chemical fire extinguishing medium is easy to use, material obtains extensively and price possesses competitiveness, and the firing-fighting medium of extensive use is become.These use the extinguishing device of powder extinguishing agent when putting out a fire, general employing pressure storage type or combustion type.
Because rapid, non-maintaining, the strong adaptability that combustion type fire extinguisher has and obtain increasing use.Combustion type fire extinguisher mainly comprises at present: the technology such as super-sonic dry-chemical fire extinguishing and pulsed dry-chemical fire extinguishing.
But existing extinguishing device, especially combustion type extinguishing device exist because short to firing-fighting medium action time, so the refinement that there is fire-fighting powder is not thorough, thus the inherent shortcoming of resume combustion effectively cannot be suppressed.
Summary of the invention
In order to make the refinement when putting out a fire of the fire-fighting powder in fire extinguisher thorough, a kind of nozzle for dry powder extinguishing installation of the present utility model.
The technical solution of the utility model:
For a nozzle for dry powder extinguishing installation, be arranged on the gas outlet place of dry powder extinguishing installation pressurized tank, nozzle interior forms the jet pipe of hollow.Jet pipe is made up of conical jet pipe contraction section and conical nozzle divergence cone; Jet pipe contraction section and nozzle divergence cone are to together with withstanding on; Jet pipe contraction section is rectilinear conical tube, and nozzle divergence cone is the conical tube of arc line shaped, and the curve that jet pipe is then combined into by orthoscopic taper and the taper of nozzle divergence cone circular arc type of jet pipe contraction section rotates and formed.
Jet pipe contraction section and nozzle divergence cone are to together with withstanding on by the nozzle throat of cylindrical flat.
Nozzle divergence cone is higher than jet pipe contraction section, and the uncovered of jet pipe contraction section is greater than the uncovered of nozzle divergence cone.
Nozzle is combined by the sealing head for pressure tank of flange and pressurized tank.Edge and the sealing head for pressure tank of jet pipe contraction section coincide mutually.
The utility model adopts casting or mechanical processing technique, forms nozzle structure, air-flow is effectively ground dry powder under the effect of jet pipe, makes dry powder refinement thorough.Part is easily processed, and its processing technology is simple, and cost is low, and efficiency is high, superior performance, is applicable to producing in enormous quantities.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of extinguishing device,
Fig. 2 is nozzle arrangements figure.
In figure: 1. gas generating agent room, 2. pressurized tank, 3. powder extinguishing agent, 4. nozzle, 41. sealing head for pressure tanks, 42. jet pipes, 421. jet pipe contraction sections, 422. nozzle throats, 423. nozzle divergence cones, 43. flanges.
Detailed description of the invention
Referring to Fig. 1 and Fig. 2, the utility model is elaborated.
The utility model is a kind of nozzle for dry powder extinguishing installation, is arranged on the gas outlet place of dry powder extinguishing installation pressurized tank 2.Nozzle 4 inside forms the jet pipe 42 of hollow.Jet pipe 42 is made up of conical jet pipe contraction section 421 and conical nozzle divergence cone 423; Jet pipe contraction section 421 and nozzle divergence cone 423 by the nozzle throat 422 of cylindrical flat to together with withstanding on.Jet pipe contraction section 421 is rectilinear conical tube, and nozzle divergence cone 423 is the conical tube of arc line shaped, and the curve that jet pipe 42 is combined into by orthoscopic taper and the taper of nozzle divergence cone 423 circular arc type of jet pipe contraction section 421 rotates and formed.Wherein, nozzle divergence cone 423 is higher than jet pipe contraction section 421, and the uncovered of jet pipe contraction section 421 is greater than the uncovered of nozzle divergence cone 423.Nozzle 4 is combined by the sealing head for pressure tank 41 of flange 43 with pressurized tank 2.Mutually coincide in conjunction with the edge of rear jet contraction section 421 and sealing head for pressure tank 41.
Operation principle is see Fig. 1:
The utility model belongs to the parts of stationary gas type dry-chemical fire extinguishing equipment.Dry-chemical fire extinguishing equipment relies on self-contained gas generating agent; the gases at high pressure generated through gas generating agent room 1 enter pressurized tank 2; stir the powder extinguishing agent 3 of filling in tank; by the nozzle 4 with special jet pipe; the particle of powder extinguishing agent 3 is impacted, shakes, cuts, ground; make it to be formed ultra-fine dry powder by refinement, and wrap up in take and directly sprayed to protected object by the dry powder of refinement in the mode of gas-solid biphase flow.
The novelty of this kind of structural design: adopt casting or mechanical processing technique, forms the nozzle 4 of nozzle structure, grinds and disturbance dry powder, improves extinguishing property.
Claims (4)
1. for a nozzle for dry powder extinguishing installation, be arranged on the gas outlet place of dry powder extinguishing installation pressurized tank (2), it is characterized in that: nozzle (4) inside forms the jet pipe (42) of hollow; Jet pipe (42) is made up of conical jet pipe contraction section (421) and conical nozzle divergence cone (423); Jet pipe contraction section (421) and nozzle divergence cone (423) are to withstanding on together; Jet pipe contraction section (421) is rectilinear conical tube, the conical tube that nozzle divergence cone (423) is arc line shaped, the curve that jet pipe (42) is then combined into by orthoscopic taper and nozzle divergence cone (423) the circular arc type taper of jet pipe contraction section (421) rotates and is formed.
2. the nozzle for dry powder extinguishing installation according to claim 1, is characterized in that: jet pipe contraction section (421) and nozzle divergence cone (423) are to withstanding on together by the nozzle throat (422) of cylindrical flat.
3. the nozzle for dry powder extinguishing installation according to claim 1 and 2, it is characterized in that: nozzle divergence cone (423) is higher than jet pipe contraction section (421), and the uncovered of jet pipe contraction section (421) is greater than the uncovered of nozzle divergence cone (423).
4. the nozzle for dry powder extinguishing installation according to claim 1 and 2, it is characterized in that: nozzle (4) is combined by the sealing head for pressure tank (41) of flange (43) with pressurized tank (2), and edge and the sealing head for pressure tank (41) of jet pipe contraction section (421) coincide mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773410.5U CN204319588U (en) | 2014-12-11 | 2014-12-11 | A kind of nozzle for dry powder extinguishing installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773410.5U CN204319588U (en) | 2014-12-11 | 2014-12-11 | A kind of nozzle for dry powder extinguishing installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204319588U true CN204319588U (en) | 2015-05-13 |
Family
ID=53155994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420773410.5U Expired - Fee Related CN204319588U (en) | 2014-12-11 | 2014-12-11 | A kind of nozzle for dry powder extinguishing installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204319588U (en) |
-
2014
- 2014-12-11 CN CN201420773410.5U patent/CN204319588U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20201211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |