CN203090324U - Multifunctional compressed air foam fire branch - Google Patents
Multifunctional compressed air foam fire branch Download PDFInfo
- Publication number
- CN203090324U CN203090324U CN 201220735289 CN201220735289U CN203090324U CN 203090324 U CN203090324 U CN 203090324U CN 201220735289 CN201220735289 CN 201220735289 CN 201220735289 U CN201220735289 U CN 201220735289U CN 203090324 U CN203090324 U CN 203090324U
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- compressed air
- foam
- water
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- nozzle
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a multifunctional compressed air foam fire branch. The multifunctional compressed air foam fire branch comprises a compressed air-water-foam concentrate mixing section, a foaming section and a nozzle, which are sequentially connected, wherein the compressed air-water-foam concentrate mixing section is a cylindrical container; the front end of the container is communicated with the foaming section, and a water-foam mixed liquid inlet is formed at the rear end of the container; a check valve is arranged on the wall of the cylindrical container and is communicated with compressed air; the foaming section is a cylindrical filter screen in a pipeline, and the inlet end of the cylindrical filter screen is open; the pipeline is portioned along a section through the cylindrical filter screen; and the aperture of a spraying orifice of the nozzle is adjustable. The novel fire branch has the advantages that the mixing section is provided with the check valve by which the compressed air can enter the mixing section, fire extinguishment spraying modes are automatically switched by regulating the spraying pressure of fire extinguishment media, and the cylindrical filter screen is used for improving foam expansion; and the consumption of water and foam can be reduced, the fire extinguishment capability is improved, the requirements of direct spraying under pressure being higher than 4.5MPa and water mist spraying can be met, and a compressed air foam fire extinguishment medium can be sprayed onto the same equipment.
Description
Technical field
The utility model belongs to Machine Design and makes the field, especially belongs to fire-fighting equipment and manufactures and designs the field, particularly a kind of multifunctional compressed air foam firefighting rifle.
Background technology
Existing fire-fighting fire extinguishing adopts multiple firing-fighting medium according to different needs, Ru Shui, water-air, water-foam solution, water-foam solution-blending agents such as air; Use the corresponding coupling of different medium to use different fire-fighting equipment, particularly fire-fighting spray gun.The fire-fighting spray gun is the important end-equipment of fire-fighting fire extinguishing, and its spray regime is mainly divided direct current water column, water smoke, thin water smoke etc., if add foam solution in the liquid, can realize containing the direct current water column, water smoke, thin water smoke of foam etc.Common fire-fighting lance is used to spray the low pressure current, and its jet is single, and water consumption is big; Giant is used for inject high pressure current or thin water smoke, and its jet is single equally, and water consumption is big; Foam-making branch utilizes venturi or principle of negative pressure, allows foam solution mix with air and produces foam, and coefficient of foaming is low, and the fire extinguishing effect is relatively poor.
Common fire-fighting lance, giant and foam-making branch can not be changed mutually easily, usually can not satisfy the conversion needs of multiple extinguishing method at the changeable fire-extinguishing location of situation.
Summary of the invention
The utility model deficiency of technology as required discloses a kind of multifunctional compressed air foam firefighting rifle.Problem to be solved in the utility model provides and a kind ofly can satisfy pressure greater than 4.5MPa direct projection and thin atomized water spray, can spray the New-type fire-fighting gun of compressed air foam extinguishing medium again on same equipment.
The utility model is achieved through the following technical solutions:
A kind of multifunctional compressed air foam firefighting rifle, comprise the compressed air-water-foam solution mixer, foaming section and the nozzle that are linked in sequence, it is characterized in that: described compressed air-water-foam solution mixer is a hydrostatic column, the container front end is communicated with the foaming section, there is water the rear end-the foam mixing liquid inlet, and the hydrostatic column wall has check valve and compressed air communication.
Further foaming section is mounted in the circle tube leaching net of entrance point opening in the pipeline, and circle tube leaching net is separated pipeline along the cross section.
Further nozzle spray orifice aperture can be regulated.
During use, when needs inject high pressure current, regulate nozzle spray orifice aperture to smaller aperture due, also can adopt before nozzle, to increase little spray orifice shower nozzle is installed, because the medium output reduces, pressure medium increases, usually pressure medium is greater than 4.5MPa, and the pressure of compressed air one end of check valve is low, and air can not enter, the high-pressure extinction medium can not flow backwards yet, and the high-pressure extinction medium sprays by nozzle; When needs sprays air-foam, regulate nozzle spray orifice aperture to larger aperture, as what install is that fixedly the small-bore shower nozzle then takes off it and gets final product, nozzle hole area sharply increases, the mixer pressure drop, one-way valve opens, compressed air enters the mixer hydrostatic column to be mixed with foam solution, after the foaming of foaming section, spray by the nozzle squit hole.
The utility model helpfulness, the utility model is linked in sequence multimedium mixer, foaming section and nozzle, the check valve that allows compressed air to enter is set at mixer, utilize check valve, and change the fire extinguishing spray regime automatically by regulating the firing-fighting medium expulsion pressure, utilize the circle tube leaching net structure to improve coefficient of foaming.The utility model can improve coefficient of foaming, using water wisely, uses foam volume, improves extinguishing ability, can satisfy pressure greater than 4.5MPa direct projection and thin atomized water spray, can spray the New-type fire-fighting gun of compressed air foam extinguishing medium again on same equipment.
Description of drawings
Fig. 1 is the little spray orifice state of a utility model Fire branch structural representation;
Fig. 2 is the big spray orifice state of a utility model Fire branch structural representation.
Among the figure, the 1st, mixer, the 2nd, check valve, the 3rd, foaming section, the 4th, nozzle, the 5th, entry to mixed solution.
The specific embodiment
Below by embodiment the utility model is further described; present embodiment only is used for the utility model is further detailed; but can not be interpreted as the restriction to the utility model protection domain, those skilled in the art can make the scope that some nonessential improvement and adjustment belong to the utility model protection according to above-mentioned content of the present utility model.
In conjunction with Fig. 1 and Fig. 2.
As shown in the figure, multifunctional compressed air foam firefighting rifle, comprise the compressed air-water-foam solution mixer 1, foaming section 3 and the nozzle 4 that are linked in sequence, compressed air-water-foam solution mixer 1 is a hydrostatic column, the container front end is communicated with foaming section 3, there is water the rear end-foam mixing liquid inlet 5, and the hydrostatic column wall has check valve 2 and compressed air communication.
As shown in Figure 1, this example is regulated spray orifice and is adopted the structure that installs small-bore spray orifice shower nozzle additional.Prepare mixer 1, foaming section 3, nozzle 4 and small-bore shower nozzle at first respectively, each member all adopts the standard syndeton with for convenience detach and combination.Mixer 1 is for being a hydrostatic column, container front end and foaming section 3 by the standard connector is communicated with, there is water the rear end-foam mixing liquid inlet 5 also passes through the standard connector and is communicated with firing-fighting medium storage device or water source, the hydrostatic column wall is provided with check valve 2, check valve 2 and compressed air communication, compressed air adopts high-pressure pump to provide usually, and high-pressure pump carries compressed-air actuated pressure to be not more than 4.5MPa.Foaming section 3 is mounted in the circle tube leaching net of entrance point opening in the pipeline, and circle tube leaching net is separated pipeline along the cross section.
As shown in Figure 2, this example adjusting spray orifice adopts cancellation to install small-bore spray orifice nozzle structure additional.Identical with other structures of Fig. 1, nozzle 4 spray orifice apertures are big in this routine structure, and nozzle hole area sharply increases, mixer 1 pressure drop, check valve 2 is opened, and compressed air enters mixer 1 hydrostatic column to be mixed with foam solution, after 3 foaming of foaming section, realize fire extinguishing by the ejection of nozzle 4 squit holes.
Claims (3)
1. multifunctional compressed air foam firefighting rifle, comprise the compressed air-water-foam solution mixer (1), foaming section (3) and the nozzle (4) that are linked in sequence, it is characterized in that: described compressed air-water-foam solution mixer (1) is a hydrostatic column, the container front end is communicated with foaming section (3), there is water the rear end-foam mixing liquid inlet (5), and the hydrostatic column wall has check valve (2) and compressed air communication.
2. multifunctional compressed air foam firefighting rifle according to claim 1 is characterized in that: described foaming section (3) is mounted in the circle tube leaching net of entrance point opening in the pipeline, and circle tube leaching net is separated pipeline along the cross section.
3. multifunctional compressed air foam firefighting rifle according to claim 1 and 2 is characterized in that: described nozzle (4) spray orifice aperture can be regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735289 CN203090324U (en) | 2012-12-27 | 2012-12-27 | Multifunctional compressed air foam fire branch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735289 CN203090324U (en) | 2012-12-27 | 2012-12-27 | Multifunctional compressed air foam fire branch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203090324U true CN203090324U (en) | 2013-07-31 |
Family
ID=48841772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220735289 Expired - Fee Related CN203090324U (en) | 2012-12-27 | 2012-12-27 | Multifunctional compressed air foam fire branch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203090324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169598A (en) * | 2015-07-29 | 2015-12-23 | 成都自能消防设备有限公司 | Air foam fire gun |
| CN115212497A (en) * | 2022-04-27 | 2022-10-21 | 南京轩能电力科技有限公司 | Compressed air foam generation bin for fire extinguishing system |
-
2012
- 2012-12-27 CN CN 201220735289 patent/CN203090324U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169598A (en) * | 2015-07-29 | 2015-12-23 | 成都自能消防设备有限公司 | Air foam fire gun |
| CN105169598B (en) * | 2015-07-29 | 2018-05-25 | 成都煦华鳌龙科技有限公司 | A kind of air foam rifle |
| CN115212497A (en) * | 2022-04-27 | 2022-10-21 | 南京轩能电力科技有限公司 | Compressed air foam generation bin for fire extinguishing system |
| CN115212497B (en) * | 2022-04-27 | 2023-10-20 | 南京轩能电力科技有限公司 | Compressed air foam generating bin for fire extinguishing system |
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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: 20130731 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |