A compressed air foam fire extinguishing system

Abstract

The present invention discloses a compressed air foam fire extinguishing system, comprising a bracket, a top-mounted main pipe, an underground main pipe, a parking space, and an integrated box. The bracket is equipped with an ultraviolet detector, a camera, and an infrared monitor. The top-mounted main pipe is connected with a first unit pipe and a first fire extinguishing agent inlet pipe, a second solenoid valve is installed on the pipe section of the first unit pipe, the first unit pipe is connected with a top-mounted nozzle, a first solenoid valve is installed on the pipe section of the first fire extinguishing agent inlet pipe, the underground main pipe is connected with a second unit pipe and a second fire extinguishing agent inlet pipe, a third solenoid valve is installed on the pipe section of the second unit pipe, the second unit pipe is connected with an underground nozzle, and a sixth solenoid valve is installed on the pipe section of the second fire extinguishing agent inlet pipe. The present invention can provide all-round protection for underground vehicles and improve fire safety.

Description

Technical Field

[0001] The invention relates to the technical field of fire safety, and in particular to a compressed air foam fire extinguishing system. Background Art

[0002] An underground parking lot refers to a building built underground for parking various sizes of motor vehicles. It is mainly composed of parking rooms, passages, ramps or mechanical lifting rooms, entrances and exits, and shunting sites. There are many vehicles in underground parking lots. As the cars age or have quality problems such as design defects, they are prone to spontaneous combustion. Once a fire occurs, it will cause significant property losses and even personal safety. At present, there is no good planning and solution for the fire safety issues in parking lots. In the event of a fire, they can only rely on top-mounted water sprinklers or manual firefighting and rescue. This firefighting method has the problem of low firefighting efficiency and is prone to delaying firefighting and causing relatively large losses. To address this problem, we propose a compressed air foam fire extinguishing system. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a compressed air foam fire extinguishing system.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A compressed air foam fire extinguishing system comprises a bracket, a top-mounted main pipe, an underground main pipe, a parking space, and an integrated box. A main detector, a camera, and a spare detector are installed on the bracket. The main detector comprises an ultraviolet detector, an infrared detector, a temperature sensor, and an image-type fire detector. The spare detector is an infrared detector. The top-mounted main pipe is connected with a first unit pipe and a first fire extinguishing agent inlet pipe. A second solenoid valve is installed on a pipe section of the first unit pipe. The first unit pipe is connected with a top-mounted nozzle. A first solenoid valve is installed on a pipe section of the first fire extinguishing agent inlet pipe. The underground main pipe is connected with a second unit pipe and a second fire extinguishing agent inlet pipe. A third solenoid valve is installed on a pipe section of the second unit pipe. The second unit pipe is connected with an underground nozzle. A third solenoid valve is installed on a pipe section of the second fire extinguishing agent inlet pipe. A sixth solenoid valve is installed, a control panel is installed on the side of the integrated box, the interior of the integrated box is divided into a first cavity and a second cavity by a partition, a communication module and a backup power supply are placed inside the first cavity, a door panel is hinged on the side of the second cavity, a first fire hose is placed in the second cavity, one end of the first fire hose is connected to a handheld spray gun, the other end of the first fire hose is connected to a bellows, the bellows is connected to a third fire extinguishing agent inlet pipe, a seventh solenoid valve is installed on the pipe section of the third fire extinguishing agent inlet pipe, a clamp is fixedly sleeved on the first fire hose, a pressure plate is fixed on the side of the clamp, a shell is fixed on the inner wall of the second cavity, the clamp, pressure plate and bellows are all located inside the shell, and a touch switch is installed on the inner wall of the shell.

[0006] Preferably, the bracket and the top-mounted main pipe are both located above the parking space, and the underground main pipe is buried below the parking space.

[0007] Preferably, there is an integrated box corresponding to every ten parking spaces, each parking space corresponds to two underground sprinklers, each parking space corresponds to a main detector, a camera, and a backup detector, and there is a top-mounted sprinkler between every two adjacent parking spaces.

[0008] Preferably, the first fire extinguishing agent inlet pipe, the second fire extinguishing agent inlet pipe, and the third fire extinguishing agent inlet pipe are all connected to the output end of the on-site fire extinguishing agent generating device through a pipeline.

[0009] Preferably, the buried main pipe is connected to a water inlet and air inlet dual-purpose pipe, the water inlet and air inlet dual-purpose pipe is connected to a fire water supply network through the water inlet pipe, the water inlet and air inlet dual-purpose pipe is connected to a compressor through the air inlet pipe, a fourth solenoid valve is installed on the pipe section of the water inlet pipe, and a fifth solenoid valve is installed on the pipe section of the air inlet pipe.

[0010] Preferably, the communication module is a 5G module, and the communication module is connected to a cloud server.

[0011] Preferably, a storage box is provided on the side of the integrated box, and a second fire hose for extinguishing fire in the host or computer room is stored in the storage box. The second fire hose is connected to the third fire extinguishing agent inlet pipe through a fourth fire extinguishing agent inlet pipe, and a shut-off valve is installed on the pipe section of the fourth fire extinguishing agent inlet pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In the present invention, the bracket and the top-mounted main pipe are both located above the parking space, and the underground main pipe is buried below the parking space. There is an integrated box corresponding to every ten parking spaces, and each parking space corresponds to two underground sprinklers. There is a top-mounted sprinkler between two adjacent parking spaces. Each parking space corresponds to a main detector, a camera, and a backup detector. When a fire is detected in a parking space, the system automatically identifies and extinguishes the fire in the parking space, and protects the two adjacent parking spaces to prevent the spread of the fire. When extinguishing the fire, the first solenoid valve, the sixth solenoid valve, and the second solenoid valve and the third solenoid valve corresponding to the corresponding parking space on fire and the two adjacent parking spaces on fire are opened, so that the fire extinguishing agent can enter through the first fire extinguishing agent pipe, the top-mounted main pipe, and the first unit pipe and be sprayed out through the top-mounted sprinkler, thereby extinguishing the fire and protecting from the top. At the same time, the fire extinguishing agent can enter through the second fire extinguishing agent inlet pipe, the underground main pipe, and the second unit pipe and be sprayed out from the underground sprinkler, thereby extinguishing the fire and protecting from the bottom, which has good zoning monitoring and zoning fire extinguishing effects and is highly targeted.

[0014] 2. In the present invention, the main detector is a common device, and the backup detector is used when the main detector fails. One is for backup and the other is for use, which ensures more efficient monitoring, avoids accidents, and has a high safety factor. The main detector includes an ultraviolet detector, an infrared detector, a temperature sensor, and an image-type fire detector. The backup detector is an infrared detector. When the temperature rise rate is abnormal or reaches the set value, the system automatically starts. When the system is pre-started or started, the camera starts recording. When the system ends, the camera stops recording. The camera recording is automatically saved and transmitted to the cloud server for storage through the communication module;

[0015] 3. In the present invention, both the underground sprinkler and the underground sprinkler adopt rotating sprinkler, which can expand the fire protection range and achieve better effect. The underground sprinkler is lifted up by the pressure of system startup and automatically sinks after the system is started. Steel balls are arranged inside the underground sprinkler and the underground sprinkler, which can rotate the sprinkler under the centrifugal force generated by the water spraying. The fourth solenoid valve can be opened separately, so that water can pass through the water inlet pipe, the underground main pipe, the second unit pipe and be sprayed out from the underground sprinkler for cooling and cleaning operations; the fifth solenoid valve can be opened separately and the compressor can be turned on, so that the wind can pass through the air inlet pipe, the underground main pipe, the second unit pipe and be sprayed out from the underground sprinkler for cooling, cleaning and drying. The functions are diverse and very comprehensive.

[0016] 4. In the present invention, according to regional integration, an integrated box is set for every ten parking spaces. The button of the corresponding solenoid valve can be selected according to the parking space on fire, or the first fire hose can be directly pulled to extinguish the fire. When the first fire hose is straightened, it will be pressed on the touch switch through the pressure plate, so that the seventh solenoid valve can be opened. At this time, the fire extinguishing agent will pass through the third fire extinguishing agent inlet pipe, the bellows, the first fire hose and be sprayed from the handheld spray gun, so as to directly carry out the fire extinguishing operation, but the system stops automatically recognizing the temperature drop and the absence of infrared rays. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a compressed air foam fire extinguishing system proposed by the present invention.

[0018] Figure 2 This is a structural schematic diagram of an integrated box of a compressed air foam fire extinguishing system proposed by the present invention.

[0019] Figure 3 A cross-sectional view of a shell of a compressed air foam fire extinguishing system proposed by the present invention.

[0020] Figure 4 It is a logic block diagram of the present invention.

[0021] In the figure: 1 bracket, 2 first solenoid valve, 3 first fire extinguishing agent inlet pipe, 4 main detector, 5 camera, 6 spare detector, 7 top-mounted main pipe, 8 first unit pipe, 9 second solenoid valve, 10 top-mounted nozzle, 11 third solenoid valve, 12 fourth solenoid valve, 13 water inlet pipe, 14 fifth solenoid valve, 15 air inlet pipe, 16 compressor, 17 underground main pipe, 18 second unit pipe, 19 second fire extinguishing agent inlet pipe, 20 sixth solenoid valve, 21 underground nozzle, 22 parking space, 23 hand-held spray gun, 24 door panel, 25 first fire hose, 26 shell, 27 partition, 28 communication module, 29 spare power supply, 30 control panel, 31 integrated box, 32 clamp, 33 touch switch, 34 pressure plate, 35 seventh solenoid valve, 36 third fire extinguishing agent inlet pipe, 37 bellows, 38 cloud server, 39 fourth fire extinguishing agent inlet pipe, 40 shut-off valve, 41 second fire hose. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Embodiment 1:

[0024] Reference Figure 1-4A compressed air foam fire extinguishing system comprises a bracket 1, a top-mounted main pipe 7, an underground main pipe 17, a parking space 22, an integrated box 31, a main detector 4, a camera 5, and a spare detector 6. The main detector 4 comprises an ultraviolet detector, an infrared detector, a temperature sensor, and an image-type fire detector. The spare detector 6 is an infrared detector. The top-mounted main pipe 7 is connected with a first unit pipe 8 and a first fire extinguishing agent inlet pipe 3. A second solenoid valve 9 is installed on the pipe section of the first unit pipe 8. The first unit pipe 8 is connected with a top-mounted nozzle 10. A first solenoid valve 2 is installed on the pipe section of the first fire extinguishing agent inlet pipe 3. The underground main pipe 17 is connected with a second unit pipe 18 and a second fire extinguishing agent inlet pipe 19. A third solenoid valve 11 is installed on the pipe section of the second unit pipe 18. The second unit pipe 18 is connected with an underground nozzle 21. A sixth solenoid valve 2 is installed on the pipe section of the second fire extinguishing agent inlet pipe 19. 0, a control panel 30 is installed on the side of the integrated box 31, and the interior of the integrated box 31 is divided into a first cavity and a second cavity by a partition 27. A communication module 28 and a backup power supply 29 are placed inside the first cavity, and a door panel 24 is hinged on the side of the second cavity. A first fire hose 25 is placed in the second cavity, one end of the first fire hose 25 is connected to a handheld spray gun 23, and the other end of the first fire hose 25 is connected to a bellows 37, and the bellows 37 is connected to a third fire extinguishing agent inlet pipe 36, and a seventh solenoid valve 35 is installed on the pipe section of the third fire extinguishing agent inlet pipe 36, a clamp 32 is fixedly sleeved on the first fire hose 25, and a pressure plate 34 is fixed on the side of the clamp 32, and a shell 26 is fixed on the inner wall of the second cavity, and the clamp 32, the pressure plate 34, and the bellows 37 are all located inside the shell 26, and a touch switch 33 is installed on the inner wall of the shell 26.

[0025] Embodiment 2:

[0026] Reference Figure 1-4 The bracket 1 and the top-mounted main pipe 7 are both located above the parking space 22, the underground main pipe 17 is buried below the parking space 22, there is an integrated box 31 corresponding to every ten parking spaces 22, each parking space 22 corresponds to two underground sprinklers 21, each parking space 22 corresponds to a main detector 4, a camera 5, and a backup detector 6, and there is a top-mounted sprinkler 10 between two adjacent parking spaces 22. The first fire extinguishing agent inlet pipe 3, the second fire extinguishing agent inlet pipe 19, and the third fire extinguishing agent inlet pipe 36 are all connected to the output end of the on-site fire extinguishing agent generating device through pipelines. The underground main pipe 17 is connected to a water inlet and air inlet dual-purpose pipe, which is connected to a fire water supply network through a water inlet pipe 13, and is connected to a compressor 16 through an air inlet pipe 15. A fourth solenoid valve 12 is installed on the pipe section of the water inlet pipe 13, and a fifth solenoid valve 14 is installed on the pipe section of the air inlet pipe 15. The communication module 28 is a 5G module, and the communication module 28 is connected to a cloud server 38.

[0027] A storage box 42 is provided on the side of the integrated box 31, and a second fire hose 41 for extinguishing a fire in the host or the machine room is stored in the storage box 42. The second fire hose 41 is connected to the third fire extinguishing agent inlet pipe 36 through the fourth fire extinguishing agent inlet pipe 39, and a shut-off valve 40 is installed on the pipe section of the fourth fire extinguishing agent inlet pipe 39.

[0028] Working principle: In the present invention, the bracket 1 and the top-mounted main pipe 7 are both located above the parking space 22, the underground main pipe 17 is buried below the parking space 22, there is an integrated box 31 corresponding to every ten parking spaces 22, each parking space 22 corresponds to two underground sprinklers 21, there is a top-mounted sprinkler 10 between two adjacent parking spaces 22, and each parking space 22 corresponds to a main detector 4, a camera 5, and a backup detector 6. When a fire is detected in a parking space 22, the system automatically identifies it and extinguishes the fire in the parking space 22, and protects the two adjacent parking spaces 22 to prevent the fire from spreading. When extinguishing a fire, the first solenoid valve 2, the sixth solenoid valve 20 and the corresponding parking space 22 on fire and the second solenoid valve 9 and the third solenoid valve 11 corresponding to the two parking spaces 22 adjacent to the parking space 22 on fire are opened, so that the fire extinguishing agent can enter through the first fire extinguishing agent pipe 3, the top-mounted main pipe 7, and the first unit pipe 8 and be sprayed out through the top-mounted nozzle 10, thereby extinguishing the fire and protecting from above. At the same time, the fire extinguishing agent can enter through the second fire extinguishing agent inlet pipe 19, the underground main pipe 17, and the second unit pipe 18 and be sprayed out from the underground nozzle 21, thereby extinguishing the fire and protecting from below, which has good zoning monitoring and zoning fire extinguishing effects and is highly targeted.

[0029] The main detector 4 is a commonly used device, and the backup detector 6 is used when the main detector 4 fails. One is for backup and the other is for use, which ensures more efficient monitoring, avoids accidents, and has a high safety factor. The main detector 4 includes an ultraviolet detector, an infrared detector, a temperature sensor, and an image-type fire detector. The backup detector 6 is an infrared detector. When the temperature rise rate is detected to be abnormal or reaches the set value, the system automatically starts. When the system is pre-started or started, the camera 5 starts recording. After the system ends, the camera 5 stops recording. The video recorded by the camera 5 is automatically saved and transmitted to the cloud server 38 for storage through the communication module 28.

[0030] Both the buried nozzle 21 and the buried nozzle 21 adopt rotating nozzles, which can expand the fire extinguishing protection range and achieve better effect. The buried nozzle 21 is lifted up by the pressure of system startup and automatically sinks after the end. The buried nozzle 21 and the buried nozzle 21 are both provided with steel balls inside, which can rotate the nozzle 180 under the centrifugal force generated by the water spraying; the fourth solenoid valve 12 can be opened separately, so that water can pass through the water inlet pipe 13, the buried main pipe 17, the second unit pipe 18 and be sprayed out from the buried nozzle 21 for cooling and cleaning operations; the fifth solenoid valve 15 can be opened separately and the compressor 16 can be turned on, so that the wind can pass through the air inlet pipe 15, the buried main pipe 17, the second unit pipe 18 and be sprayed out from the buried nozzle 21 for cooling, cleaning and drying. It has various functions and is very comprehensive.

[0031] According to the regional integration, an integration box 31 is set for every ten parking spaces 22. The button of the corresponding solenoid valve can be selected according to the parking space 22 on fire, or the first fire hose 25 can be directly pulled to extinguish the fire. When the first fire hose 25 is straightened, it will be pressed on the touch switch 33 through the pressure plate 34, so that the seventh solenoid valve 35 can be opened. At this time, the fire extinguishing agent will pass through the third fire extinguishing agent inlet pipe 36, the bellows 37, the first fire hose 25 and be sprayed out from the handheld spray gun 23, so as to directly carry out the fire extinguishing operation, but the system stops automatically recognizing the temperature drop and the absence of infrared rays.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A compressed air foam fire extinguishing system, comprising a bracket (1), a top-mounted main pipe (7), an underground main pipe (17), a parking space (22), and an integrated box (31), characterized in that: The bracket (1) and the top-mounted main pipe (7) are both located above the parking space (22); the buried main pipe (17) is buried below the parking space (22); a main detector (4), a camera (5), and a backup detector (6) are installed on the bracket (1); the main detector (4) comprises an ultraviolet detector, an infrared detector, a temperature sensor, and an image-type fire detector; the backup detector (6) is an infrared detector; the top-mounted main pipe (7) is connected to a first unit pipe (8) and a first fire extinguishing agent inlet pipe (3); a second solenoid valve (9) is installed on a pipe section of the first unit pipe (8); the first unit pipe (8) is connected to a top-mounted nozzle (10); a first solenoid valve (9) is installed on a pipe section of the first fire extinguishing agent inlet pipe (3); A magnetic valve (2), the underground main pipe (17) is connected to a second unit pipe (18) and a second fire extinguishing agent inlet pipe (19), a third electromagnetic valve (11) is installed on the pipe section of the second unit pipe (18), the second unit pipe (18) is connected to an underground sprinkler (21), a sixth electromagnetic valve (20) is installed on the pipe section of the second fire extinguishing agent inlet pipe (19), a control panel (30) is installed on the side of the integrated box (31), the interior of the integrated box (31) is divided into a first cavity and a second cavity by a partition (27), a communication module (28) and a backup power supply (29) are placed in the first cavity, a door panel (24) is hinged on the side of the second cavity, and a first fire hose (21) is placed in the second cavity. 5), one end of the first fire hose (25) is connected to a hand-held spray gun (23), the other end of the first fire hose (25) is connected to a bellows (37), the bellows (37) is connected to a third fire extinguishing agent inlet pipe (36), a seventh solenoid valve (35) is installed on the pipe section of the third fire extinguishing agent inlet pipe (36), a clamp (32) is fixedly sleeved on the first fire hose (25), a pressure plate (34) is fixed on the side of the clamp (32), a shell (26) is fixed on the inner wall of the second cavity, the clamp (32), the pressure plate (34) and the bellows (37) are all located inside the shell (26), a touch switch (33) is installed on the inner wall of the shell (26), and the first fire hose After being straightened, the pressure plate (34) presses on the touch switch (33), thereby opening the seventh solenoid valve (35). The first fire extinguishing agent inlet pipe (3), the second fire extinguishing agent inlet pipe (19), and the third fire extinguishing agent inlet pipe (36) are all connected to the output end of the on-site fire extinguishing agent generating device through pipelines. There is an integrated box (31) corresponding to every ten parking spaces (22). Each parking space (22) has two underground sprinklers (21). Each parking space (22) has a main detector (4), a camera (5), and a spare detector (6). There is a top-mounted sprinkler (10) between two adjacent parking spaces (22). The underground main pipe (17) is connected to a dual-purpose water inlet and air inlet pipe.The dual-purpose water inlet and air inlet pipe is connected to a fire water supply network via a water inlet pipe (13), and the dual-purpose water inlet and air inlet pipe is connected to a compressor (16) via an air inlet pipe (15). A fourth solenoid valve (12) is installed on a pipe section of the water inlet pipe (13), and a fifth solenoid valve (14) is installed on a pipe section of the air inlet pipe (15).

2. A compressed air foam fire extinguishing system according to claim 1, characterized in that: The communication module (28) is a 5G module, and the communication module (28) is connected to a cloud server (38).

3. A compressed air foam fire extinguishing system according to claim 1, characterized in that: A storage box (42) is provided on the side of the integrated box (31), and a second fire hose (41) for extinguishing a fire in the host or the machine room is stored in the storage box (42); the second fire hose (41) is connected to the third fire extinguishing agent inlet pipe (36) via a fourth fire extinguishing agent inlet pipe (39), and a shut-off valve (40) is installed on the pipe section of the fourth fire extinguishing agent inlet pipe (39).

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