CN2671620Y - Supersonic airflow fire fighting device - Google Patents
Supersonic airflow fire fighting device Download PDFInfo
- Publication number
- CN2671620Y CN2671620Y CN 200320109915 CN200320109915U CN2671620Y CN 2671620 Y CN2671620 Y CN 2671620Y CN 200320109915 CN200320109915 CN 200320109915 CN 200320109915 U CN200320109915 U CN 200320109915U CN 2671620 Y CN2671620 Y CN 2671620Y
- Authority
- CN
- China
- Prior art keywords
- fire
- nozzle tube
- supersonic airstream
- extinguishing
- extinguishing device
- 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 - Fee Related
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model belongs to the technical field of fire fighting and relates to a supersonic airflow fire fighting device which is mainly used for putting out fire disasters with large areas, such as a forest fire disaster, etc. People can not approach to the fire disasters. The utility model is composed of a detecting head (1), a rectifying cover (2), an outer shell (3), a nozzle tube (4), fire fighting agent (5), a gas generation chamber (6), a stabilizer vane (7), ignition powder (8), a gas generator (9), etc. The peripheral body or one side of the nozzle tube (4) is symmetrically provided with Laval nozzles (10). When the fire fighting device is used for putting out a fire, the ignition powder (8) is ignited by an ignitor (9), a great deal of gas is generated, the gas rushes out of the thin wall of the gas generation chamber and enters the space of the gas generation chamber (9) and the nozzle tube (4), the fire fighting agent (5) in the space is driven to generate a supersonic airflow through the Laval nozzles (10) on the nozzle tube (4), the supersonic airflow is ejected, and the purpose for putting out the fire with high efficiency is obtained.
Description
The utility model belongs to the fire prevention field, relates to a kind of supersonic airstream extinguishing device, and being mainly used in the large tracts of land mankind such as putting out forest can't close fire.
At present, fire-fighting fire extinguishing is a lot of with the device kind, but be fire-smothering gear, fixed froth installation, water extinguisher or other extinguishing device all be by reduce oxygen concentration around the flame, reduce flame zone temperature, suffocate, purpose that radiation-inhibiting heat reaches fire extinguishing.But all there is a common characteristic in all these extinguishing devices, that be exactly the speed of spurting of extinguishing chemical all less than velocity of sound, on fire-fighting fire extinguishing was seized every minute and second, fire-fighting efficiency was on the low side.Utilizing the extinguishing device of supersonic speed principle design is a kind of novel fire-fighting technique, it is the ignition charge in the extinguishing device to be lighted produce a large amount of high pressure high energy gas, the high pressure high energy gas produces supersonic airstream by the De Laval noz(zle) in the device, and the extinguishing chemical in the extinguishing device is sprayed away.It is a kind ofly to convert pressure energy the device of kinetic energy to, utilizes this kinetic energy to shed extinguishing chemical, reaches the purpose of high efficiency fire extinguishing.But utilize the extinguishing device of supersonic speed principle design also very few at present, domestic only have a development of indivedual units, their complex structures of existing apparatus, and processing difficulties and cost height, function is difficult to realize.
The purpose of this utility model is that a kind of supersonic airstream extinguishing device that utilizes the design of supersonic speed principle will be provided, and it can effectively overcome the deficiency of above technology.
The purpose of this utility model is achieved in that the utility model is provided with a gas generating chamber, gas generating chamber is a thin wall cylindrical body, gas generator and ignition charge are housed in the gas generating chamber, and gas generator firing point gunpowder can produce a large amount of gases at high pressure.The utility model also is provided with a nozzle tube, nozzle tube also is a cylinder, and the whole body is covered with the De Laval noz(zle) of a large amount of symmetries, and gas generating chamber is sleeved on nozzle tube, gas generating chamber is installed in the inside of nozzle tube, and the space between gas generating chamber and nozzle tube is covered with extinguishing chemical.When the needs extinguishing device is worked, the automatic operating point of gas generator burning-point gunpowder also can send signal by the detecting head of this device to gas generator, gas generator work, the firing point gunpowder, produce a large amount of gases at high pressure, break through gas generating chamber's thin-walled, enter the space between gas generating chamber and the nozzle tube, driving extinguishing chemical sprays by the De Laval noz(zle) on the nozzle tube, produce the supersonic airstream that carries extinguishing chemical in a large number, spray, cover on the flame, implement the high efficiency fire extinguishing.
The utility model is compared with traditional fire-fighting technique, has the following advantages:
1, fire-fighting efficiency height;
2, process, assemble easily, reliable in function, processing technology is good, and cost is low.
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.
Accompanying drawing is the profile according to the supersonic airstream extinguishing device that the utility model proposes.
Below in conjunction with details and the working condition of accompanying drawing detailed description according to the concrete device that the utility model proposes.
The utility model is made up of detecting head (1), radome fairing (2), shell (3), nozzle tube (4), extinguishing chemical (5), gas generating chamber (6), stabilizer (7), ignition charge (8), gas generator (9) etc., and this device sparking mode has two kinds.During work, the gas generator igniting of working automatically, firing point gunpowder (8), or the working signal that sends of detecting head (1), notice gas generator (9) igniting, firing point gunpowder (8), produce a large amount of gases at high pressure gassy generation chamber (6), gas generating chamber (6) is the thin walled cylindrical structure, it is broken fully under the impact of gases at high pressure, gases at high pressure break through the thin-walled of gas generating chamber (6), enter the space that gas generating chamber (6) and nozzle tube (4) form, and the space is covered with extinguishing chemical (5).Nozzle tube (4) is a cylindrical, metal structures, its week on one's body symmetry be covered with De Laval noz(zle) (10), gases at high pressure drive extinguishing chemical (5) by the ejection of the De Laval noz(zle) (10) on the nozzle tube (4), produce the supersonic airstream that carries extinguishing chemical, implement the high efficiency fire extinguishing.Radome fairing (2) is extinguishing device reduces air drag when moving in air a device; Stabilizer (7) can be used for guaranteeing the stability when extinguishing device moves in air; The effect of detecting head (1) be used for the regular hour make gas generator (9) igniting device; Shell (3) is wrapped in the outside of nozzle tube (4), forms certain initial pressure, prevents that extinguishing chemical from leaking, and can make with the very little material of pressure-bearing, as hardboard, mould plate, sheet iron etc.The nozzle tube of this device (4) as required can be at whole body symmetric arrangement De Laval noz(zle), and the sprinkling of extinguishing chemical is circular like this, also can make extinguishing chemical spray towards a direction at a side symmetric arrangement De Laval noz(zle) of nozzle tube (4).When breaking out of fire, this device is carried to scene of fire throwing or emission by aircraft or other means of transport, this extinguishing device work, and extinguishing chemical sprays with supersonic airstream, implements the high efficiency fire extinguishing.
Claims (9)
1, supersonic airstream extinguishing device, form by detecting head (1), radome fairing (2), shell (3), nozzle tube (4), extinguishing chemical (5), gas generating chamber (6), stabilizer (7), ignition charge (8), gas generator (9) etc., be primarily characterized in that extinguishing chemical is to produce supersonic airstream by the De Laval noz(zle) (10) on the nozzle tube (4) to eject under the drive of the gases at high pressure that gas generating chamber (6) produces.
2, supersonic airstream extinguishing device according to claim 1 is characterized in that gas generating chamber (6) is installed in the inside of sprayer body (4).
3, supersonic airstream extinguishing device according to claim 1 is characterized in that being provided with in the gas generating chamber (6) gas generator (9) and ignition charge (8).
4, supersonic airstream extinguishing device according to claim 1 is characterized in that gas generating chamber (6) is the cylinder-shaped thin wall structure.
5, supersonic airstream extinguishing device according to claim 1 is characterized in that nozzle tube (4) is a cylindrical structural.
6, supersonic airstream extinguishing device according to claim 1 is characterized in that De Laval noz(zle) (10) can be arranged symmetrically in nozzle tube (4) all over the body, also can be arranged symmetrically in nozzle tube (4) one sides.
7, supersonic airstream extinguishing device according to claim 1 is characterized in that extinguishing chemical (5) can be any one material that can put out a fire.
8, supersonic airstream extinguishing device according to claim 1 is characterized in that shell (3) is thin-walled any materials such as hardboard, plastic board, sheet iron composition.
9, supersonic airstream extinguishing device according to claim 1 is characterized in that the end of this device is provided with detecting head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109915 CN2671620Y (en) | 2003-12-10 | 2003-12-10 | Supersonic airflow fire fighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109915 CN2671620Y (en) | 2003-12-10 | 2003-12-10 | Supersonic airflow fire fighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2671620Y true CN2671620Y (en) | 2005-01-19 |
Family
ID=34474780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320109915 Expired - Fee Related CN2671620Y (en) | 2003-12-10 | 2003-12-10 | Supersonic airflow fire fighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2671620Y (en) |
-
2003
- 2003-12-10 CN CN 200320109915 patent/CN2671620Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050119 Termination date: 20121210 |