CN208911356U - A kind of compressed-air foam spray head for inflammable and explosive environment - Google Patents
A kind of compressed-air foam spray head for inflammable and explosive environment Download PDFInfo
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- CN208911356U CN208911356U CN201821532005.9U CN201821532005U CN208911356U CN 208911356 U CN208911356 U CN 208911356U CN 201821532005 U CN201821532005 U CN 201821532005U CN 208911356 U CN208911356 U CN 208911356U
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- foam
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- relief hole
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Abstract
The utility model discloses a kind of compressed-air foam spray heads for inflammable and explosive environment.The spray head includes integrally formed spray head arrival end, spray head middle section and spray head end, spray head arrival end is equipped with screw thread, and compressed-air foam spray head is threadedly coupled by spray head arrival end with pipe network, spray head middle section flare, spray head end is release rotary table, and to discharge spherical surface；Discharging frustum cone side angle with horizontal plane θ is 15 ° -85 °, discharges the side of rotary table in foam and bottom surface arranges foam relief hole；Foam relief hole direction is side and bottom surface normal direction, and compressed-air foam carries out covering injection to different angle by the foam relief hole that foam discharges frustum cone side and bottom surface.The nozzle structure is simple, safe and reliable, is not easy damage of being exploded, and release is uniform, protection scope is big, does not destroy foaming structure, small on foaming properties influence, is suitable for installing and using in inflammable and explosive environment.
Description
Technical field
The utility model relates to extinguishing device more particularly to a kind of compressed-air foam sprays for inflammable and explosive environment
Head.
Background technique
The reason of existing fixed fire-fighting system, often fails after encountering explosion accident in a fire, failure include:
1. the applicators such as foam producer, spray head are directly damaged by explosion.Such as low expansion foam generator, once by
Explosion damage is blown up, and foam will be no longer generated.
2. the applicators such as foam producer, spray head are become pressure relief opening, are directly resulted in system pressure mistake by after explosion damage
Weighing apparatus, the cisco unity malfunctions such as other foam producers, spray head.
Chinese patent CN201410707575.7 discloses a kind of compressed-air foam spray application method and spray head, the spray
Head has dispersion impeller, and dispersion impeller, which is easily blown up, in explosion causes foam sprinkling uneven.
Chinese patent CN201620695528.X discloses a kind of abutment wall type compressed-air foam spray head, which can only use
It is installed in side wall.
Summary of the invention
The purpose of the utility model is to overcome the above-mentioned problems of the prior art, especially provide a kind of for inflammable easy
The compressed-air foam spray head both can be sagging in quick-fried environment or installed with side wall.Compressed-air foam is directly by compressed air
It is generated in injection foam solution, what last extinguishing device discharged is foamed foam, therefore avoids applicator quilt
Foam is no longer led to the problem of after explosion damage.The spray head is not easy damage of being exploded, even if nor affecting on other spray heads after damage
Jetting performance.
The technical scheme adopted by the utility model is that: a kind of compressed-air foam spray head for inflammable and explosive environment,
Be characterized in that, the compressed-air foam spray head include integrally formed foam nozzle arrival end, foam nozzle middle section and
Foam nozzle end, foam nozzle arrival end are equipped with screw thread, and compressed-air foam spray head passes through foam nozzle arrival end and pipe network
It is threadedly coupled, foam nozzle middle section flare, foam nozzle end is that foam discharges rotary table；The foam discharges rotary table
Side angle with horizontal plane θ is 15 ° -85 °, discharges the side of rotary table in foam and bottom surface arranges altogether n foam relief hole；
Foam relief hole direction is side and bottom surface normal direction, and compressed-air foam discharges frustum cone side under by foam
The foam relief hole of bottom surface carries out covering injection to different angle, and the sum of area of all foam relief holes is not less than foam nozzle
Inlet end cross section area.
The bottom surface that foam described in the utility model discharges rotary table is set there are four foam relief hole, and foam discharges frustum cone side
On foam relief hole annularly arrange, share tricyclic.
The tricyclic foam relief hole that foam described in the utility model discharges on frustum cone side from inner ring to outer ring is successively set as 8
A, 12,18.
Foam described in the utility model discharges frustum cone side angle with horizontal plane θ and is set as 45 °.
The beneficial effect of the utility model compared with prior art is: structure is simple, is integrally formed, is safe and reliable, is not easy
It is damaged by explosion；Uniformly release, protection scope are big, do not destroy foaming structure, influence on foaming properties small；Even if a spray head damage
It is bad, other sprinkler pressures are not influenced, are suitable for installing and using in inflammable and explosive environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the embodiment schematic diagram that foam discharges rotary table arrangement foam relief hole in Fig. 1.
Specific embodiment
The utility model is described in further detail with embodiment referring to the drawings:
The compressed-air foam spray head of the utility model includes integrally formed foam nozzle arrival end, among foam nozzle
Part and foam nozzle end, foam nozzle arrival end 1 are equipped with screw thread, and compressed-air foam spray head passes through foam nozzle arrival end
1 is threadedly coupled with pipe network, 2 flare of foam nozzle middle section, and foam nozzle end is that foam discharges rotary table 3；Foam is applied
Putting 3 side angle with horizontal plane θ of rotary table is 15 ° -85 °, discharges the side of rotary table 3 in foam and bottom surface arranges altogether n bubble
Foam relief hole；Foam relief hole direction is side and bottom surface normal direction, and compressed-air foam discharges 3 side of rotary table by foam
The foam relief hole of face and bottom surface carries out covering injection to different angle, and the sum of area of all foam relief holes is not less than bubble
Foam spray head inlet end cross section area.
Embodiment: the bottom surface that foam discharges rotary table 3 is set there are four foam relief hole 3-1, and foam discharges on 3 side of rotary table
Foam relief hole 3-2 annularly arrange, share tricyclic, the tricyclic foam relief hole 3-2 from inner ring to outer ring is successively set as 8
A, 12,18, arrange altogether 42 foam relief holes.Foam discharges bottom surface foam relief hole 3-1 and the side of rotary table 3
The diameter of papula foam relief hole 3-2 is about 8mm.The sum of the area of all foam relief holes is approximately equal to foam nozzle arrival end 1
Cross-sectional area.Foam discharges 3 side angle with horizontal plane θ of rotary table and is set as 45 °.
Claims (4)
1. a kind of compressed-air foam spray head for inflammable and explosive environment, which is characterized in that the compressed-air foam spray head
Including integrally formed foam nozzle arrival end, foam nozzle middle section and foam nozzle end, foam nozzle arrival end is set
There is screw thread, compressed-air foam spray head is threadedly coupled by foam nozzle arrival end with pipe network, and foam nozzle middle section is in loudspeaker
Shape, foam nozzle end are that foam discharges rotary table；It is 15 ° -85 ° that the foam, which discharges frustum cone side angle with horizontal plane θ,
Foam discharges the side of rotary table and bottom surface arranges altogether n foam relief hole；Foam relief hole direction is side under
Bottom surface normal direction, compressed-air foam by foam discharge the foam relief hole of frustum cone side and bottom surface to different angle into
Row covering injection, the sum of area of all foam relief holes are not less than foam nozzle inlet end cross section area.
2. a kind of compressed-air foam spray head for inflammable and explosive environment according to claim 1, which is characterized in that institute
The bottom surface for stating foam release rotary table is set there are four foam relief hole, and the foam relief hole that foam discharges on frustum cone side is annular in shape
Arrangement shares tricyclic.
3. a kind of compressed-air foam spray head for inflammable and explosive environment according to claim 2, which is characterized in that institute
It states the tricyclic foam relief hole that foam discharges on frustum cone side from inner ring to outer ring and is successively set as 8,12,18.
4. a kind of compressed-air foam spray head for inflammable and explosive environment according to claim 1, which is characterized in that institute
It states foam release frustum cone side angle with horizontal plane θ and is set as 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821532005.9U CN208911356U (en) | 2018-09-19 | 2018-09-19 | A kind of compressed-air foam spray head for inflammable and explosive environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821532005.9U CN208911356U (en) | 2018-09-19 | 2018-09-19 | A kind of compressed-air foam spray head for inflammable and explosive environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208911356U true CN208911356U (en) | 2019-05-31 |
Family
ID=66706210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821532005.9U Active CN208911356U (en) | 2018-09-19 | 2018-09-19 | A kind of compressed-air foam spray head for inflammable and explosive environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208911356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448842A (en) * | 2019-09-25 | 2019-11-15 | 九江中船长安消防设备有限公司 | A kind of high-risk complex environment compressed-air foam spray head |
-
2018
- 2018-09-19 CN CN201821532005.9U patent/CN208911356U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448842A (en) * | 2019-09-25 | 2019-11-15 | 九江中船长安消防设备有限公司 | A kind of high-risk complex environment compressed-air foam spray head |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300381 No. 110 South Jin Wei Road, Tianjin, Nankai District Patentee after: TIANJIN FIRE Research Institute OF MEM Address before: 300381 No. 110 South Jin Wei Road, Tianjin, Nankai District Patentee before: TIANJIN FIRE Research Institute |