CN114699682B - Foam generating device of compressed nitrogen foam fire extinguishing system - Google Patents
Foam generating device of compressed nitrogen foam fire extinguishing system Download PDFInfo
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- CN114699682B CN114699682B CN202210326614.3A CN202210326614A CN114699682B CN 114699682 B CN114699682 B CN 114699682B CN 202210326614 A CN202210326614 A CN 202210326614A CN 114699682 B CN114699682 B CN 114699682B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/002—Apparatus for mixing extinguishants with water
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Abstract
The invention relates to the technical field of foaming devices, in particular to a foam generating device of a compressed nitrogen foam fire extinguishing system, which comprises a foaming box, wherein the bottom of the foaming box is provided with a through hole, the bottom of the foaming box is provided with an atomization bin, the atomization bin is communicated with the inside of the foaming box through the through hole, the lower side of the atomization bin is conical, the opening of the atomization bin faces downwards, the side wall of the atomization bin is provided with a feeding pipe, and the bottom of the atomization bin is provided with an air inlet pipe; carry out the air-blowing atomization through nitrogen gas to the foamer and handle to conveniently make foamer and water homogeneous mixing after the atomizing, improve the foamer diffusion effect, thereby improve the foam production volume, avoid the foam volume too big simultaneously, improve foam density, thereby improve fire control effect and separate the temperature effect.
Description
Technical Field
The invention relates to the technical field of foaming devices, in particular to a foam generating device of a compressed nitrogen foam fire extinguishing system.
Background
As is well known, a foam fire extinguishing system mainly depends on foam to isolate the air around a fire scene and reduce the temperature of the fire scene, thereby achieving a novel fire extinguishing mode of fire extinguishing purpose, compared with the mode of directly extinguishing fire by adopting water, foam extinguishment can improve fire extinguishing efficiency, the conveying distance is increased, water waste is reduced, environmental protection performance and other advantages are improved, compressed nitrogen foam replaces air through nitrogen, thereby reducing the oxygen content in foam, and the fire extinguishing effect is increased.
Disclosure of Invention
In order to solve the technical problem, the invention provides a foam generating device of a compressed nitrogen foam fire extinguishing system.
In order to achieve the purpose, the invention adopts the technical scheme that:
compressed nitrogen gas foam extinguishing system foam produces device, including the foaming case, the opening has been seted up to foaming bottom of the case portion, and the atomizing storehouse is installed to the foaming bottom of the case portion, and the atomizing storehouse passes through opening and the inside intercommunication of foaming incasement portion, and the atomizing storehouse downside sets up to the toper to atomizing storehouse opening is down, installs the inlet pipe on the atomizing storehouse lateral wall, and the foaming agent passes through the inlet pipe and arranges into to the atomizing storehouse in, and the nitrogen gas of flow state can carry out the air-blowing atomization to the foaming agent in the atomizing storehouse and handle, and the intake pipe is installed to the atomizing storehouse bottom, and the open position in atomizing storehouse is located the intake pipe inboard, foaming bottom of the case portion intercommunication is provided with the inlet tube.
Furthermore, the top of the foaming box is arranged to be in a boss shape, a first air vent is formed in the boss-shaped outer side wall of the foaming box, a polygonal shaft is vertically and rotatably arranged in the foaming box, an air guide groove is formed in the bottom of the polygonal shaft, a plurality of exhaust holes are formed in the outer side wall of the polygonal shaft and are located on the lower side of the polygonal shaft, the exhaust holes are communicated with the air guide groove, a through hole is communicated with the air guide groove, an annular groove plate is mounted on the polygonal shaft and is located on the lower side of the interior of the foaming box, the annular groove plate is rotatably connected with the foaming box, a water inlet pipe is communicated with the annular groove plate, and a plurality of water drain holes are formed in the top of the annular groove plate;
the outer wall of the polygonal shaft is slidably sleeved with a polygonal sliding sleeve, the bottom of the polygonal sliding sleeve is in contact with the top of the annular groove plate, the middle of the polygonal sliding sleeve is provided with a floating plate, the circumferential outer wall of the floating plate is in sliding contact with the inner wall of the foaming box, the floating plate is provided with a second air diffusing port, and a sealing cover is covered on the second air diffusing port;
the top of the foaming box is provided with a motor, and the output end of the motor is in transmission connection with the top of the polygonal shaft;
and the inner wall of the polygonal sliding sleeve plugs the exhaust holes in the polygonal shaft.
Furthermore, a sealing disc is arranged in an air guide groove in the polygonal shaft in a sliding mode, the bottom of the sealing disc is used for plugging the through hole, a plurality of air guide through holes are formed in the sealing disc, the bottom of the inner wall of the foaming box is used for plugging the lower side openings of the air guide through holes, the upper side openings of the air guide through holes are communicated with the air guide groove, a plurality of first plate springs are installed at the top of the sealing disc, and the outer ends of the first plate springs are fixed to the inner wall of the air guide groove.
Furthermore, a fixed barrel is arranged in the atomization bin, the opening of the fixed barrel faces downwards, the output end of the feeding pipe is communicated with the inside of the fixed barrel, a connecting shaft is arranged at the bottom of the sealing disc, the bottom of the connecting shaft penetrates through the opening and the top of the fixed barrel and extends into the fixed barrel, the connecting shaft is connected with the fixed barrel in a sliding mode, a moving block is arranged at the bottom of the connecting shaft, the bottom of the moving block is conical, a material guide chamber is arranged in the moving block, a feeding hole is formed in the side wall of the moving block and is communicated with a material guide chamber, a plurality of discharging holes are formed in the conical outer wall of the lower side of the fixed barrel, a sealing plate covers the discharging holes and is rotatably arranged on the outer wall of the fixed barrel, a second plate spring is arranged on the sealing plate, and the outer end of the second plate spring is arranged on the fixed barrel;
wherein, the movable block lateral wall carries out the shutoff to the inlet pipe output, and fixed bucket inner wall carries out the shutoff to the feed inlet.
Furthermore, a vertical opening is formed in the side wall of the polygonal sliding sleeve, a vertical sliding groove is formed in the side wall of the polygonal shaft, a sliding block is arranged in the sliding groove in a sliding mode, a right-angle frame is installed on the sliding block, the outer end of the right-angle frame is connected with the sealing cover, a third plate spring is installed on the right-angle frame, and the bottom of the third plate spring is connected with the top of the floating plate.
Further, a plurality of guide passageways are installed in the intercommunication on the foaming box circumference outer wall, the division board is installed to the guide passageway internal rotation, it inlays and has the rotation post to rotate on the guide passageway outer wall, rotates on the division board and installs the push-and-pull rod, the push-and-pull rod pass the rotation post and with rotate post sliding connection, the sliding sleeve is installed in the outer end rotation of push-and-pull rod, it is provided with the right angle movable plate to slide in the sliding sleeve, the vertical foaming incasement that inserts in the outer end of right angle movable plate to right angle movable plate and foaming box sliding connection, the gyro wheel is installed in the rotation of the right angle movable plate tip in the foaming case.
Furthermore, a plurality of rotating rings are rotatably installed at the top of the inner wall of the foaming box, a plurality of stirring rods are installed at the bottoms of the rotating rings, and the bottoms of the stirring rods penetrate through the floating plate and are in sliding connection with the floating plate.
Furthermore, a plurality of first arc-shaped plates are obliquely arranged at the bottom of the floating plate, and a plurality of second arc-shaped plates are obliquely arranged at the top of the annular groove plate.
Compared with the prior art, the invention has the beneficial effects that: carry out the air blowing atomizing through nitrogen gas to the foamer to conveniently make foamer after the atomizing and water homogeneous mixing, improve the foamer diffusion effect, thereby improve the foam production volume, avoid the foam volume too big simultaneously, improve foam density, thereby improve fire control effect and separate the temperature effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the foaming tank of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the polygonal sliding sleeve of FIG. 2;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is an enlarged view of a portion B of FIG. 3;
in the drawings, the reference numbers: 1. a foaming box; 2. an atomization bin; 3. a feeding pipe; 4. an air inlet pipe; 5. a water inlet pipe; 6. a polygonal shaft; 7. an annular groove plate; 8. a polygonal sliding sleeve; 9. a floating plate; 10. sealing the cover; 11. a motor; 12. sealing the disc; 13. an air guide through hole; 14. a first plate spring; 15. fixing the barrel; 16. a connecting shaft; 17. a moving block; 18. a material guiding chamber; 19. a discharge outlet; 20. closing the plate; 21. a second plate spring; 22. a slider; 23. a right-angle frame; 24. a third plate spring; 25. a material guide channel; 26. a separator plate; 27. a rotating post 28; a push-pull rod; 29. a sliding sleeve; 30. a right-angle moving plate; 31. a roller; 32. a rotating ring; 33. a stirring rod; 34. a first arc-shaped plate; 35. a second arcuate plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.
As shown in fig. 1 to 5, the foam generating device of the compressed nitrogen foam fire extinguishing system comprises a foaming box 1, wherein a through hole is formed in the bottom of the foaming box 1, an atomization bin 2 is installed at the bottom of the foaming box 1, the atomization bin 2 is communicated with the interior of the foaming box 1 through the through hole, the lower side of the atomization bin 2 is conical, the opening of the atomization bin 2 faces downwards, a feeding pipe 3 is installed on the side wall of the atomization bin 2, an air inlet pipe 4 is installed at the bottom of the atomization bin 2, the opening of the atomization bin 2 is located on the inner side of the air inlet pipe 4, and a water inlet pipe 5 is communicated with the bottom of the foaming box 1.
In the embodiment, water is introduced into the foaming box 1 through the water inlet pipe 5, nitrogen is discharged into the atomization bin 2 through the air inlet pipe 4, meanwhile, a foaming agent is discharged into the atomization bin 2 through the inlet pipe 3, the nitrogen in a flowing state in the atomization bin 2 can perform air blowing atomization treatment on the foaming agent, so that the foaming agent forms a fog shape and reduces the volume of the foaming agent, the atomized foaming agent enters water in the foaming box 1 through an opening, the atomized foaming agent can be uniformly diffused in the water, the diffusion uniformity of the atomized foaming agent is improved, the mixing concentration of the foaming agent and the water is kept uniform conveniently, the nitrogen is synchronously discharged into the water, bubbles formed by the nitrogen perform air blowing stirring treatment on the water and the foaming agent, the foaming agent and the water are mixed conveniently, the nitrogen enters the water to form bubbles, the bubbles are reduced in volume and can be split conveniently, a large amount of small-volume foam is formed, the fire extinguishing effect and the heat insulation effect of the foaming agent are improved, the atomized foaming agent and atomized water can be dissolved in the water, the bubbles can be mixed conveniently, and the foam density can be improved, and the foam insulation effect can be improved.
Preferably, the top of the foaming box 1 is provided with a boss, a first air diffusing port is formed on the boss-shaped outer side wall of the foaming box 1, a polygonal shaft 6 is vertically and rotatably arranged in the foaming box 1, an air guide groove is formed at the bottom of the polygonal shaft 6, a plurality of air exhaust holes are formed on the outer side wall of the polygonal shaft 6 and are located on the lower side of the polygonal shaft 6, the air exhaust holes are communicated with the air guide groove, the through hole is communicated with the air guide groove, an annular groove plate 7 is mounted on the polygonal shaft 6, the annular groove plate 7 is located on the inner lower side of the foaming box 1, the annular groove plate 7 is rotatably connected with the foaming box 1, a water inlet pipe 5 is communicated with the annular groove plate 7, and a plurality of water drainage holes are formed in the top of the annular groove plate 7;
the outer wall of the polygonal shaft 6 is slidably sleeved with a polygonal sliding sleeve 8, the bottom of the polygonal sliding sleeve 8 is in contact with the top of the annular groove plate 7, a floating plate 9 is mounted in the middle of the polygonal sliding sleeve 8, the circumferential outer wall of the floating plate 9 is in sliding contact with the inner wall of the foaming box 1, a second air diffusing port is formed in the floating plate 9, and a sealing cover 10 is covered on the second air diffusing port;
the top of the foaming box 1 is provided with a motor 11, and the output end of the motor 11 is in transmission connection with the top of the polygonal shaft 6;
wherein, the inner wall of the polygonal sliding sleeve 8 plugs the exhaust holes on the polygonal shaft 6.
In this embodiment, the motor 11 drives the polygonal shaft 6 to rotate, the polygonal shaft 6 drives the annular groove plate 7, the polygonal sliding sleeve 8, the floating plate 9 and the sealing cover 10 to synchronously rotate, external water is discharged into the annular groove plate 7 through the water inlet pipe 5, water in the annular groove plate 7 is upwards discharged through a plurality of water discharge holes on the annular groove plate, the water discharged from the water discharge holes upwards flows along the outer wall of the polygonal sliding sleeve 8, the water in the foaming box 1 is gradually increased, air on the lower side of the floating plate 9 is discharged through the second air discharge holes and the first air discharge holes, so that the space on the lower side of the floating plate 9 is in an air-free state, when the water surface in the foaming box 1 contacts the bottom of the floating plate 9, the water discharged from the floating plate 9 upwards is pushed by the water in the foaming box 1, the sealing cover 10 can seal the second air discharge holes in the floating plate 9, the floating plate 9 can drive the polygonal sliding sleeve 8 to upwards float, the polygonal sliding sleeve 8 stops sealing work of sealing the air discharge holes on the polygonal groove 6, the air discharge holes in the foaming box 6, the foaming agent and the nitrogen in the air discharge holes in the polygonal shaft 6 enter the air guide grooves in the polygonal shaft 6 and are discharged through the water discharge holes, so that the foaming agent and the foaming agent can be synchronously discharged, the foaming agent, the foaming box can be synchronously discharged, the foaming agent can be uniformly blown, and the foaming agent can be conveniently, and the foaming agent can be discharged by the foaming agent, and the foaming agent in the foaming box, and the foaming agent can be synchronously discharged by the foaming agent, and the foaming agent can be discharged by the foaming agent in the foaming agent.
In this embodiment, through installing kickboard 9 in 8 middle parts of polygon sliding sleeve, can conveniently make polygon sliding sleeve 8 carry out spacing processing to kickboard 9 position, be in the airless state through the space that makes 9 downside of kickboard, in can avoiding the oxygen in the air to get into the foam, through setting up polygon sliding sleeve 8, can conveniently carry out the shutoff to the exhaust hole on the polygon axle 6 when equipment is idle.
Preferably, in the above embodiment, a sealing plate 12 is slidably disposed in the air guide groove in the polygonal shaft 6, the bottom of the sealing plate 12 blocks the through opening, the sealing plate 12 is provided with a plurality of air guide through holes 13, the bottom of the inner wall of the foaming box 1 blocks the lower openings of the air guide through holes 13, the upper openings of the air guide through holes 13 are communicated with the air guide groove, the top of the sealing plate 12 is mounted with a plurality of first plate springs 14, and the outer ends of the first plate springs 14 are fixed on the inner wall of the air guide groove.
In this embodiment, nitrogen gas promotion closing disk 12 rebound in the atomizing storehouse 2, closing disk 12 bottom and the separation of foaming box 1 inner wall bottom, this moment the opening with air guide through-hole 13 be in the connected state, nitrogen gas accessible opening and air guide through-hole 13 get into the air guide inslot, through setting up closing disk 12, air guide through-hole 13 and first leaf spring 14, can conveniently carry out the shutoff to the opening, after the work of putting out a fire is accomplished, avoid water to get into in the atomizing storehouse 2.
Preferably, a fixed barrel 15 is arranged in the atomization bin 2, an opening of the fixed barrel 15 faces downwards, an output end of the feeding pipe 3 is communicated with the inside of the fixed barrel 15, a connecting shaft 16 is arranged at the bottom of the sealing disc 12, the bottom of the connecting shaft 16 penetrates through the through hole and the top of the fixed barrel 15 and extends into the fixed barrel 15, the connecting shaft 16 is connected with the fixed barrel 15 in a sliding manner, a moving block 17 is arranged at the bottom of the connecting shaft 16, the bottom of the moving block 17 is conical, a material guide chamber 18 is arranged in the moving block 17, a feeding hole is formed in the side wall of the moving block 17 and is communicated with the material guide chamber 18, a plurality of discharging holes 19 are formed in the conical outer wall of the lower side of the fixed barrel 15, a sealing plate 20 is covered on the discharging holes 19, the sealing plate 20 is rotatably arranged on the outer wall of the fixed barrel 15, a second plate spring 21 is arranged on the sealing plate 20, and the outer end of the second plate spring 21 is arranged on the fixed barrel 15;
wherein, the lateral wall of the moving block 17 blocks the output end of the feeding pipe 3, and the inner wall of the fixed barrel 15 blocks the feeding hole.
In this embodiment, when the sealing disc 12 moves upward and stops the plugging operation of the through hole, the sealing disc 12 pulls the moving block 17 to move upward through the connecting shaft 16, at this time, the output end of the feeding pipe 3 is communicated with the feeding port on the moving block 17, the foaming agent enters the material guiding chamber 18, when the polygonal shaft 6 drives the sealing disc 12 to rotate through the first plate spring 14, the sealing disc 12 drives the moving block 17 to rotate synchronously through the connecting shaft 16, the moving block 17 drives the sealing plate 20 thereon to perform centrifugal motion, the sealing plate 20 is centrifugally separated from the discharging port 19, at this time, the foaming agent in the material guiding chamber 18 is discharged through the discharging port 19, the nitrogen in the atomizing bin 2 performs air-blowing atomization processing on the foaming agent discharged from the discharging port 19, and the second plate spring 21 can generate elastic thrust on the sealing plate 20.
In this embodiment, when the moving block 17 rotates, the moving block 17 drives the feeding port to rotate, so that the foaming agent is intermittently flushed into the feeding chamber 18, the foaming agent is conveniently aerated, and the impact force between the foaming agent and nitrogen is increased.
As a preferable preference of the above embodiment, the side wall of the polygonal sliding sleeve 8 is provided with a vertical opening, the side wall of the polygonal shaft 6 is provided with a vertical sliding groove, a sliding block 22 is slidably arranged in the sliding groove, a right-angle bracket 23 is installed on the sliding block 22, the outer end of the right-angle bracket 23 is connected with the sealing cover 10, a third leaf spring 24 is installed on the right-angle bracket 23, and the bottom of the third leaf spring 24 is connected with the top of the floating plate 9.
In this embodiment, when the equipment is idle, 8 bottoms of polygonal sliding sleeve and 7 bottoms contact of ring channel board, slider 22 slides to the bottom of spout, and closing cap 10 and kickboard 9 separation this moment, and third leaf spring 24 is in the elastic deformation state, and when kickboard 9 floated upwards, closing cap 10 carried out the shutoff to the second scattered gas port on the kickboard 9, and kickboard 9 promotes closing cap 10 synchronous upward movement this moment, and closing cap 10 promotes slider 22 upward movement through right-angle frame 23.
Preferably, a plurality of material guide channels 25 are communicated and installed on the circumferential outer wall of the foaming box 1, a partition plate 26 is rotatably installed in each material guide channel 25, a rotating column 27 is rotatably embedded in the outer wall of each material guide channel 25, a push-pull rod 28 is rotatably installed on each partition plate 26, each push-pull rod 28 penetrates through each rotating column 27 and is slidably connected with each rotating column 27, a sliding sleeve 29 is rotatably installed at the outer end of each push-pull rod 28, a right-angle moving plate 30 is slidably installed in each sliding sleeve 29, the outer end of each right-angle moving plate 30 is vertically inserted into the foaming box 1, each right-angle moving plate 30 is slidably connected with the foaming box 1, and a roller 31 is rotatably installed at the end of each right-angle moving plate 30 in the foaming box 1.
In this embodiment, when the foam on the lower side of the floating plate 9 increases gradually, the foam layer can push the floating plate 9 to move upwards, the floating plate 9 contacts with the roller 31, and the floating plate 9 pushes the right-angle moving plate 30 to move upwards through the roller 31, the right-angle moving plate 30 pulls the partition plate 26 to rotate through the sliding sleeve 29 and the push-pull rod 28, at this time, the partition plate 26 stops the blocking operation on the material guiding channel 25, the foam in the foaming box 1 is discharged through the material guiding channel 25, when the partition plate 26 rotates obliquely, the push-pull rod 28 drives the rotating column 27 to rotate, and the push-pull rod 28 pushes the sliding sleeve 29 to slide on the right-angle moving plate 30, and the friction force of the right-angle moving plate 30 and the sliding sleeve 29 rotating relatively can be reduced by arranging the roller 31.
Preferably, a plurality of rotating rings 32 are rotatably mounted on the top of the inner wall of the foaming tank 1, a plurality of stirring rods 33 are mounted on the bottom of the rotating rings 32, and the bottom of the stirring rods 33 passes through the floating plate 9 and is slidably connected with the floating plate 9.
In this embodiment, when the floating plate 9 rotates, the floating plate 9 drives the stirring rod 33 and the rotating ring 32 to rotate synchronously, and the stirring rod 33 can stir the water, the foaming agent and the nitrogen in the foaming tank 1.
Preferably, a plurality of first arc-shaped plates 34 are obliquely arranged at the bottom of the floating plate 9, and a plurality of second arc-shaped plates 35 are obliquely arranged at the top of the annular groove plate 7.
In this embodiment, kickboard 9 can drive first arc 34 and rotate, first arc 34 can promote the foam and get into in the guide passageway 25 fast, annular frid 7 drives second arc 35 and rotates, second arc 35 can promote the water of the inside downside of foaming case 1 and gather together and flow upwards to the middle part, thereby make water and the foamer in the foaming case 1 along 8 and the 6 outer walls of polygon sliding sleeve upflow of polygon axle, the convenient mixed liquid that makes is the flow state that rolls, improve the foam and produce the homogeneity of speed and mixed liquid.
The foam generating device of the compressed nitrogen foam fire extinguishing system is mounted, connected or arranged in a common mechanical mode, and can be implemented as long as the beneficial effects of the foam generating device can be achieved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be also considered as the protection scope of the present invention.
Claims (7)
1. The utility model provides a compressed nitrogen gas foam fire extinguishing systems foam produces device, a serial communication port, including foaming case (1), the opening has been seted up to foaming case (1) bottom, and atomizing storehouse (2) are installed to foaming case (1) bottom, and atomizing storehouse (2) are through opening and foaming case (1) inside intercommunication, and atomizing storehouse (2) downside sets up to the toper to atomizing storehouse (2) opening down, install inlet pipe (3) on atomizing storehouse (2) lateral wall, and the foaming agent is discharged to atomizing storehouse (2) in through inlet pipe (3), and the nitrogen gas of flow state can be blown gas atomization process to the foaming agent in atomizing storehouse (2), and intake pipe (4) are installed to atomizing storehouse (2) bottom, and the open position in atomizing storehouse (2) is located intake pipe (4) inboard, foaming case (1) bottom intercommunication is provided with inlet tube (5);
the top of the foaming box (1) is arranged to be in a boss shape, a first air diffusing port is formed in the boss-shaped outer side wall of the foaming box (1), a polygonal shaft (6) is vertically and rotatably arranged in the foaming box (1), an air guide groove is formed in the bottom of the polygonal shaft (6), a plurality of exhaust holes are formed in the outer side wall of the polygonal shaft (6), the exhaust holes are located on the lower side of the polygonal shaft (6), the exhaust holes are communicated with the air guide groove, a through hole is communicated with the air guide groove, an annular groove plate (7) is installed on the polygonal shaft (6), the annular groove plate (7) is located on the inner lower side of the foaming box (1), the annular groove plate (7) is rotatably connected with the foaming box (1), a water inlet pipe (5) is communicated with the annular groove plate (7), and a plurality of water drainage holes are formed in the top of the annular groove plate (7);
a polygonal sliding sleeve (8) is slidably sleeved on the outer wall of the polygonal shaft (6), the bottom of the polygonal sliding sleeve (8) is in contact with the top of the annular groove plate (7), a floating plate (9) is installed in the middle of the polygonal sliding sleeve (8), the outer wall of the circumference of the floating plate (9) is in sliding contact with the inner wall of the foaming box (1), a second air dispersing port is formed in the floating plate (9), and a sealing cover (10) is covered on the second air dispersing port;
the top of the foaming box (1) is provided with a motor (11), and the output end of the motor (11) is in transmission connection with the top of the polygonal shaft (6);
wherein, the inner wall of the polygonal sliding sleeve (8) seals the exhaust hole on the polygonal shaft (6).
2. A foam generating device of a compressed nitrogen foam fire extinguishing system according to claim 1, wherein a sealing disc (12) is slidably arranged in a gas guiding groove in the polygonal shaft (6), the bottom of the sealing disc (12) blocks a through hole, a plurality of gas guiding through holes (13) are formed in the sealing disc (12), the bottom of the inner wall of the foaming box (1) blocks the lower openings of the gas guiding through holes (13), the upper openings of the gas guiding through holes (13) are communicated with the gas guiding groove, a plurality of first plate springs (14) are installed at the top of the sealing disc (12), and the outer ends of the first plate springs (14) are fixed on the inner wall of the gas guiding groove.
3. The foam generating device of the compressed nitrogen foam fire extinguishing system according to claim 2, wherein a fixed barrel (15) is arranged in the atomizing bin (2), the fixed barrel (15) has a downward opening, the output end of the feeding pipe (3) is communicated with the inside of the fixed barrel (15), a connecting shaft (16) is arranged at the bottom of the sealing disc (12), the bottom of the connecting shaft (16) passes through the through opening and the top of the fixed barrel (15) and extends into the fixed barrel (15), the connecting shaft (16) is slidably connected with the fixed barrel (15), a moving block (17) is arranged at the bottom of the connecting shaft (16), the bottom of the moving block (17) is conical, a material guide chamber (18) is arranged in the moving block (17), a feeding port is arranged on the side wall of the moving block (17), the feeding port is communicated with the material guide chamber (18), a plurality of discharging ports (19) are arranged on the conical outer wall of the lower side of the fixed barrel (15), a sealing plate (20) is covered on the discharging port (19), the sealing plate (20) is rotatably arranged on the outer wall of the fixed barrel (15), a second plate spring (21) is arranged on the outer end of the fixed barrel (15);
wherein, the lateral wall of the moving block (17) blocks the output end of the feeding pipe (3), and the inner wall of the fixed barrel (15) blocks the feeding hole.
4. A compressed nitrogen foam fire extinguishing system foam generating device according to claim 3, wherein a vertical opening is formed in the side wall of the polygonal sliding sleeve (8), a vertical sliding groove is formed in the side wall of the polygonal shaft (6), a sliding block (22) is arranged in the sliding groove in a sliding manner, a right-angle frame (23) is installed on the sliding block (22), the outer end of the right-angle frame (23) is connected with the sealing cover (10), a third plate spring (24) is installed on the right-angle frame (23), and the bottom of the third plate spring (24) is connected with the top of the floating plate (9).
5. The foam generating device of a compressed nitrogen foam fire extinguishing system according to claim 4, wherein a plurality of material guiding channels (25) are communicated with and installed on the outer circumferential wall of the foaming box (1), a partition plate (26) is rotatably installed in each material guiding channel (25), a rotating column (27) is rotatably embedded in the outer wall of each material guiding channel (25), a push-pull rod (28) is rotatably installed on each partition plate (26), each push-pull rod (28) penetrates through each rotating column (27) and is slidably connected with each rotating column (27), a sliding sleeve (29) is rotatably installed at the outer end of each push-pull rod (28), a right-angle moving plate (30) is slidably arranged in each sliding sleeve (29), the outer end of each right-angle moving plate (30) is vertically inserted into the foaming box (1), each right-angle moving plate (30) is slidably connected with the foaming box (1), and a roller (31) is rotatably installed at the end of each right-angle moving plate (30) in the foaming box (1).
6. A compressed nitrogen foam fire extinguishing system foam generating device according to claim 5, wherein the top of the inner wall of the foam box (1) is rotatably mounted with a plurality of rotating rings (32), the bottom of the rotating rings (32) is mounted with a plurality of stirring rods (33), and the bottom of the stirring rods (33) passes through the floating plate (9) and is slidably connected with the floating plate (9).
7. A compressed nitrogen foam fire extinguishing system foam generating device according to claim 6, wherein a plurality of first arc-shaped plates (34) are obliquely installed at the bottom of the floating plate (9), and a plurality of second arc-shaped plates (35) are obliquely installed at the top of the annular groove plate (7).
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| CN210472872U (en) * | 2019-06-18 | 2020-05-08 | 南通海舟船舶设备有限公司 | Novel fire-fighting foam gun |
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| CN215653586U (en) * | 2021-05-26 | 2022-01-28 | 中国十七冶集团有限公司 | Foam fire-fighting spray head |
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| CN201492845U (en) * | 2009-09-17 | 2010-06-02 | 西安新竹防灾救生设备有限公司 | Medium-multiple inert gas foam generator |
| CN206350878U (en) * | 2016-12-30 | 2017-07-25 | 安徽壮志公共安全科技有限公司 | A kind of fire-fighting portable foam bucket |
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| CN114699682A (en) | 2022-07-05 |
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