CN212016534U - Foam nozzle for tunnel fire control - Google Patents
Foam nozzle for tunnel fire control Download PDFInfo
- Publication number
- CN212016534U CN212016534U CN202020388111.5U CN202020388111U CN212016534U CN 212016534 U CN212016534 U CN 212016534U CN 202020388111 U CN202020388111 U CN 202020388111U CN 212016534 U CN212016534 U CN 212016534U
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- CN
- China
- Prior art keywords
- nozzle
- foam
- tunnel fire
- spraying
- fire protection
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- Expired - Fee Related
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- 239000006260 foam Substances 0.000 title claims abstract description 44
- 239000007921 spray Substances 0.000 claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model relates to a fire control shower nozzle technical field, concretely relates to a foam nozzle for tunnel fire control, its characterized in that: including the shower nozzle body, first nozzle and second nozzle, this internal cavity that is equipped with of shower nozzle, shower nozzle body upper end is equipped with the pipeline interface, three reposition of redundant personnel hole has been seted up along its circumferencial direction to shower nozzle body surface, corresponding reposition of redundant personnel hole department is all located to first nozzle and second nozzle, the shower nozzle body is located on the inlet channel and is made three reposition of redundant personnel hole be in on the same horizontal plane and make first nozzle level spray forward, the second nozzle is two and uses the injection direction of first nozzle as central symmetry arrangement, be equipped with the deflector on the second nozzle and make the one side of the fluid deviation to first nozzle that the second nozzle sprays out. The utility model has the advantages of simple and practical overall structure, when guaranteeing to spray coverage area length, further increased and sprayed coverage area's width, it sprays coverage area wider, can reduce the installation quantity of foam nozzle, saves the cost.
Description
Technical Field
The utility model relates to a fire control shower nozzle technical field, specificly relate to a foam nozzle for tunnel fire control.
Background
When a fire disaster occurs in the tunnel, the fire extinguishing system is started, the water film-forming foam is uniformly sprayed into the protection area through the atomization and diffusion effects of the tunnel nozzles to extinguish the fire disaster, and in the existing tunnel fire extinguishing system, the width of each group of tunnel nozzle protection areas is smaller and is generally smaller than 4 meters, so that the number of nozzles required to be installed in the tunnel is more, and the problems of cost and workload are caused.
To solve this problem, a near and remote foam nozzle is provided in the utility model patent with publication number CN 205759309U. The utility model provides a near, long-range foam nozzle, including main part, short range shower nozzle and long-range shower nozzle, the main part has a cavity, the main part be equipped with the communicating pipeline interface of cavity, be equipped with two shower nozzle interfaces on the outer fringe contour of main part, short range shower nozzle and long-range shower nozzle connect respectively on the shower nozzle interface and with the cavity of main part communicates with each other, the extension line of short range shower nozzle injection direction and the extension line of long-range shower nozzle injection direction form certain contained angle, the contained angle is greater than 90 degrees and is less than 180 degrees, when the main part is connected with the pipeline, the injection direction of long-range shower nozzle is vertical upwards, the side cover is equipped with the shower nozzle baffle on the injection export of long-range shower nozzle, the extending direction of shower nozzle baffle and the injection direction of long-range shower nozzle form 40 degrees ~ 55 degrees contained, and the fluid sprayed by the remote spray head is sprayed towards the direction of one side of the short-range spray head under the guiding action of the spray head guide plate. However, although the foam nozzles can increase the length of the spray coverage area, the width of the coverage area is relatively narrow, so that the distance between two adjacent foam nozzles needs to be set to be small, the number of the foam nozzles is increased, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an overall structure is simple, practical, when guaranteeing to spray coverage area length, has further increased the width that sprays the coverage area, and it sprays the coverage area wider, can reduce the installation quantity of foam nozzle, saves the cost a foam nozzle for tunnel fire control.
In order to solve the technical problem, the utility model discloses a technical scheme as follows: the utility model provides a foam nozzle for tunnel fire control, including the shower nozzle body, first nozzle and second nozzle, this internal cavity that is equipped with of shower nozzle, shower nozzle body upper end is equipped with the pipeline interface that is linked together with the cavity, three reposition of redundant personnel hole that is linked together with the cavity is seted up along its circumferencial direction to shower nozzle body surface, corresponding reposition of redundant personnel hole department and be connected with shower nozzle body detachable are all located to first nozzle and second nozzle, the shower nozzle body passes through the pipeline interface and installs on the inlet channel and make three reposition of redundant personnel hole be in same horizontal plane and make first nozzle level spray forward, the second nozzle is two and uses the injection direction of first nozzle as central symmetry arrangement, fixed mounting has the deflector on the second nozzle and makes the one side of the fluid deviation first nozzle that the second nozzle jetted out.
Furthermore, an extension line of the spraying direction of the second nozzle and an extension line of the spraying direction of the first nozzle form an included angle alpha, and the included angle alpha is 45-135 degrees.
Furthermore, the guide plate comprises a spraying pressure plate, one end of the spraying pressure plate is fixedly provided with a connecting plate fixedly connected with the second nozzle, the guide plate is arranged on one side, away from the first nozzle, of the second nozzle, the transverse width of the spraying pressure plate is gradually increased from one end provided with the connecting plate to the other end, the spraying pressure plate is obliquely arranged towards one side of the first nozzle and forms an included angle beta with the connecting plate, and the included angle beta is 30-60 degrees.
Further, the spraying plate is arc-shaped.
Furthermore, a plurality of through holes are uniformly formed in the surface of the spray pressure plate.
Further, the inner diameter of the through hole is 0.5-1.5 mm.
Furthermore, a filter is arranged in the cavity of the nozzle body, the filter is of a net structure, and the filter is fixedly arranged in the cavity through holes by elastic check rings.
Furthermore, the first nozzle and the second nozzle are both in threaded connection with the spray head body.
Furthermore, the joints between the first nozzle and the nozzle body, and between the second nozzle and the nozzle body are provided with O-shaped sealing rings.
Furthermore, the water spraying cavities of the first nozzle and the second nozzle are cylindrical, the water spraying cavities are gradually contracted inwards at one end far away from the nozzle body and form water spraying openings, and the inner diameters of the water spraying openings are smaller than that of the water spraying cavities.
As can be seen from the above description, the foam nozzle for tunnel fire protection provided by the utility model has simple and practical overall structure, the foam nozzles can be arranged at intervals at two sides of the tunnel along the length direction of the tunnel, and the first nozzle horizontally sprays to the center line of the tunnel along the width direction of the tunnel, the range of the first nozzle is far, thereby carrying out overall spraying and covering on the width direction of the tunnel, matching with the guiding action of the guide plate through the arrangement of the two second nozzles, so as to carry out supplementary spraying covering on two side areas which are close to the foam nozzle and can not be covered by the first nozzle, thereby further increasing the width of the spraying coverage area while ensuring the length of the spraying coverage area, the overall spraying coverage area of the foam sprayer is wider, the installation quantity of the foam sprayer can be reduced, the cost is saved, and the arrangement of pipelines is simplified; because the guide plate is longitudinally installed, the fluid sprayed by the second nozzle can be sprayed and dispersed in an arc shape obliquely upwards and downwards along the inner arc-shaped surface of the spraying plate, and a longitudinal spraying barrier is formed along the height direction of the tunnel while spraying and covering the areas at two sides close to the foam nozzle to divide the tunnel into a plurality of relatively independent spraying areas, so that the effect of isolating and blocking fire spreading is effectively achieved, and the fire can be quickly extinguished; through the setting of through-hole, when the fluid that the second nozzle sprays out spouts the interior arcwall face of spouting the clamp plate, the fluid of small part can be through the through-hole and spray the cover in the both sides region that is close to the tunnel lateral wall to this foam nozzle rear end for this foam nozzle spray the region more comprehensively, further ensure fire control effect.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a foam nozzle for tunnel fire protection of the present invention.
Fig. 2 is an exploded perspective view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic view of the internal structure of the showerhead body.
Fig. 5 is a schematic view of the internal structure of the first nozzle.
In the figure: 1-a nozzle body; 11-a cavity; 12-a pipe interface; 13-a shunt hole; 14-a ring card slot; 2-a first nozzle; 21-a water spraying cavity; 22-water jet; 3-a second nozzle; 4-a guide plate; 41-spraying a pressing plate; 411-a through hole; 42-a connecting plate; 5-a filter; 6-elastic retainer ring for hole; 7-O type sealing ring.
Detailed Description
The present invention will be further described with reference to the following detailed description.
As shown in fig. 1 to 4, the foam nozzle for tunnel fire protection of the present invention comprises a nozzle body 1, a first nozzle 2 and a second nozzle 3, wherein a cavity 11 is provided in the nozzle body 1, a pipe connector 12 communicated with the cavity 11 is provided at the upper end of the nozzle body 1, three branch holes 13 communicated with the cavity 11 are provided on the outer surface of the nozzle body 1 along the circumferential direction, the first nozzle 2 and the second nozzle 3 are both provided at the corresponding branch holes 13 and detachably connected to the nozzle body 1, the nozzle body 1 is installed on a water inlet pipe through the pipe connector 12, the three branch holes 13 are located on the same horizontal plane, the first nozzle 2 is horizontally and forwardly injected, the second nozzles 3 are two and are symmetrically arranged with the injection direction of the first nozzle 2 as the center, a guide plate 4 is fixedly installed on the second nozzle 3, and the fluid sprayed from the second nozzle 3 is deflected to one side of the first nozzle 2.
In addition, the inner surface of the pipe joint 12 is provided with a first internal thread, so as to facilitate the quick connection between the nozzle body 1 and the water inlet pipe, in practical application, some existing wide tunnels are usually more than 15 meters in width, and the top of the center line of the tunnel is usually provided with an exhaust channel, so the foam nozzle can be installed at intervals on two sides of the tunnel along the length direction of the tunnel, and the first nozzle 2 is enabled to horizontally spray to the center line of the tunnel along the width direction of the tunnel, the range of the first nozzle 2 is far, so as to carry out overall spray coverage to the width direction of the tunnel, as the fluid sprayed from the first nozzle 2 is gradually diffused along the spraying direction, the spray coverage area at the far distance is wide, but the spray coverage area near the foam nozzle is narrow, through the arrangement of the two second nozzles 3, the guide effect of the guide plate 4 is matched, so that the areas on two sides, close to the foam sprayer, which are not covered by the first nozzle 2 are supplemented with spraying coverage, the length of the spraying coverage area is ensured, the width of the spraying coverage area is further increased, the whole spraying coverage area of the foam sprayer is wider, the installation quantity of the foam sprayer can be reduced, the cost is saved, and the arrangement of pipelines is simplified.
As shown in fig. 3, an extension line of the spraying direction of the second nozzle 3 and an extension line of the spraying direction of the first nozzle 2 form an included angle α, and the included angle α is 45-135 °, and preferably 90 °.
As shown in fig. 1, 2 and 3, the guide plate 4 includes a spraying plate 41, one end of the spraying plate 41 is fixedly provided with a connecting plate 42 for fixedly connecting with the second nozzle 3, the guide plate 4 is arranged on the second nozzle 3 at a side far from the first nozzle 2, a transverse width of the spraying plate 41 is gradually increased from the end provided with the connecting plate 42 to the other end, so that the fluid sprayed from the second nozzle 3 is dispersed in a fan shape, a longitudinal spraying barrier is formed along a height direction of the tunnel while two side areas close to the foam nozzle are sprayed and covered, the tunnel is divided into a plurality of relatively independent spraying areas, thereby effectively isolating and blocking fire spreading and facilitating faster fire extinguishing, the spraying plate 41 is obliquely arranged towards one side of the first nozzle 2 and forms an included angle β with the connecting plate 42, the included angle β is 30-60 °, preferably, the included angle β is 50 °, in addition, the spray pressure plate 41 is arc-shaped, because the guide plate 4 is longitudinally installed, the inner arc-shaped surface of the spray pressure plate 41 faces one side of the first nozzle 2, the fluid sprayed by the second nozzle 3 can be obliquely upwards and downwards arc-shaped along the inner arc-shaped surface of the spray pressure plate 41 for spraying and dispersing, and the longitudinal spray barrier function is achieved, and meanwhile, the fluid can be further deviated to two side areas close to the foam nozzle which cannot be covered by the first nozzle 2, so that the spray effect of the foam nozzle is more sufficient and uniform.
As shown in fig. 1, in addition, a plurality of through holes 411 are uniformly formed on the surface of the spraying plate 41, through the arrangement of the through holes 411, when the fluid sprayed from the second nozzle 3 is sprayed to the inner arc surface of the spraying plate 41, a small part of the fluid can pass through the through holes 411 and spray and cover the two side areas of the rear end of the foam nozzle close to the tunnel side wall, so that the spraying area of the foam nozzle is more comprehensive, the spraying dead angle is reduced as much as possible, and the fire extinguishing effect is further ensured, in addition, the inner diameter of the through holes 411 is 0.5-1.5mm, preferably, the inner diameter of the through holes 411 is 1 mm.
As shown in fig. 1 and 2, a filter 5 is disposed in the cavity 11 of the nozzle body 1, the filter 5 is a mesh structure, the filter 5 can cover the diversion hole 13, so as to prevent impurities from entering the first nozzle 2 or the second nozzle 3 to block the injection channel, and effectively prolong the service life of the first nozzle 2 and the second nozzle 3, the filter 5 is fixed in the cavity 11 by an elastic collar 6 for a hole, an annular groove 14 can be opened on the upper portion of the inner surface of the cavity 11, and the elastic collar 6 for a hole can be clamped in the annular groove 14, so as to limit and fix the filter 5.
As shown in fig. 2, the first nozzle 2 and the second nozzle 3 are both in threaded connection with the spray head body 1, a second internal thread is arranged on the inner surface of the diversion hole 13 on the spray head body 1, and a second external thread is arranged on the outer surface of one end of each of the first nozzle 2 and the second nozzle 3, so that the first nozzle 2 and the second nozzle 3 can be quickly connected with and detached from the spray head body 1, and the nozzles with different ranges or spray patterns can be replaced according to actual needs; the first nozzle 2 and the second nozzle 3 are connected with the sprayer body 1 through O-shaped sealing rings 7, the sealing performance of the connection between the first nozzle 2 and the second nozzle 3 and the sprayer body 1 can be ensured through the arrangement of the O-shaped sealing rings 7, and fluid is effectively prevented from seeping out of the connection between the first nozzle 2 and the second nozzle 3 and the sprayer body 1 in the spraying process.
As shown in fig. 5, the water spraying cavities 21 of the first nozzle 2 and the second nozzle 3 are both cylindrical, one end of the water spraying cavity 21 far away from the sprinkler body 1 is gradually retracted and forms a water spraying opening 22, and the inner diameter of the water spraying opening 22 is smaller than that of the water spraying cavity 21.
The aforesaid is only a plurality of concrete implementation manners of the utility model, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (10)
1. The utility model provides a foam nozzle for tunnel fire control, includes shower nozzle body, first nozzle and second nozzle, this internal cavity that is equipped with of shower nozzle, shower nozzle body upper end be equipped with the pipeline interface that the cavity is linked together, its characterized in that: the outer surface of the sprayer body is provided with three shunting holes communicated with the cavity along the circumferential direction, the first nozzle and the second nozzle are arranged at the corresponding shunting holes and detachably connected with the sprayer body, the sprayer body is arranged on a water inlet pipeline through the pipeline interfaces, the three shunting holes are positioned on the same horizontal plane, the first nozzle is horizontally and forwards sprayed, the two second nozzles are symmetrically arranged by taking the spraying direction of the first nozzle as the center, and the second nozzle is fixedly provided with a guide plate and deflects the fluid sprayed by the second nozzle to one side of the first nozzle.
2. A foam nozzle for tunnel fire protection as claimed in claim 1, wherein: an included angle alpha is formed by an extension line of the spraying direction of the second nozzle and an extension line of the spraying direction of the first nozzle, and the included angle alpha is 45-135 degrees.
3. A foam nozzle for tunnel fire protection as claimed in claim 1, wherein: the deflector is including spouting the clamp plate, spout the fixed connecting plate that is equipped with in clamp plate one end be used for with second nozzle fixed connection, the deflector is located in keeping away from on the second nozzle one side of first nozzle, spout the transverse width of clamp plate from being equipped with the one end of connecting plate is crescent to the other end, spout the clamp plate toward first nozzle lopsidedness sets up and with be formed with contained angle beta between the connecting plate, the angle of contained angle beta is 30-60.
4. A foam nozzle for tunnel fire protection as claimed in claim 3, wherein: the spraying plate is arc-shaped.
5. A foam nozzle for tunnel fire protection as claimed in claim 3, wherein: a plurality of through holes are uniformly formed in the surface of the spray pressure plate.
6. A foam nozzle for tunnel fire protection as claimed in claim 5, wherein: the inner diameter of the through hole is 0.5-1.5 mm.
7. A foam nozzle for tunnel fire protection as claimed in claim 1, wherein: the filter is arranged in the cavity of the nozzle body and is of a net structure, and the filter is fixedly arranged in the cavity through holes by elastic check rings.
8. A foam nozzle for tunnel fire protection as claimed in claim 1, wherein: the first nozzle and the second nozzle are both in threaded connection with the sprayer body.
9. A foam nozzle for tunnel fire protection as claimed in claim 1, wherein: and O-shaped sealing rings are arranged at the joints of the first nozzle, the second nozzle and the sprayer body.
10. A foam nozzle for tunnel fire protection as claimed in claim 1, wherein: the water spraying cavities of the first nozzle and the second nozzle are cylindrical, one end of each water spraying cavity far away from the spray head body is gradually retracted inwards to form a water spraying opening, and the inner diameter of each water spraying opening is smaller than that of each water spraying cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020388111.5U CN212016534U (en) | 2020-03-24 | 2020-03-24 | Foam nozzle for tunnel fire control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020388111.5U CN212016534U (en) | 2020-03-24 | 2020-03-24 | Foam nozzle for tunnel fire control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212016534U true CN212016534U (en) | 2020-11-27 |
Family
ID=73487806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020388111.5U Expired - Fee Related CN212016534U (en) | 2020-03-24 | 2020-03-24 | Foam nozzle for tunnel fire control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212016534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115703113A (en) * | 2021-08-13 | 2023-02-17 | 达威应材有限公司 | Fluid knife |
-
2020
- 2020-03-24 CN CN202020388111.5U patent/CN212016534U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115703113A (en) * | 2021-08-13 | 2023-02-17 | 达威应材有限公司 | Fluid knife |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201127 |