Fire-fighting high-rise remote gas supply system

Abstract

The application discloses a kind of fire-fighting high-rise remote gas supply systems, more particularly to fire-fighting gas supply field, including ground gas supply unit, high-pressure conveying hose, outer wall vertical hoisting unit and safety control unit, the ground gas supply unit includes air compressor and multiple high-pressure gas storage tank, the conveying hose is wound and arranged on automatic winding mechanism, the outer wall vertical hoisting unit includes directional pulley, tow rope and electric capstan, the directional pulley is fixedly installed on outer wall, one end of the conveying hose is connected with the output end of high-pressure gas storage tank, the other end of the conveying hose passes through directional pulley and is connected with inflation terminal.The application does not depend on climbing platform fire truck jib, and gas supply pipeline can be independently laid along the vertical wall of any height building, suitable for fire rescue of super high-rise building (more than 100 meters), and has a wider application range.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting gas supply technology, and more specifically, to a fire-fighting high-rise remote gas supply system, which is particularly suitable for the rapid refilling of air respirators and gas cylinders for firefighters in complex fire scenes such as high-rise and super high-rise buildings, underground confined spaces, and large-span factories. Background Technology

[0002] Positive pressure breathing apparatus (PPBA) is a core piece of personal protective equipment for firefighters entering environments with dense smoke and toxic gases for firefighting and rescue operations. Currently, the commonly used breathing cylinders for firefighters are designed with a pressure of 30 MPa and a volume of 6.8 L, theoretically lasting about 60 minutes based on the average person's breathing volume. However, in actual fire rescue operations, due to firefighters carrying heavy equipment, performing high-intensity physical tasks (such as climbing buildings, breaching structures, search and rescue, and firefighting), and the significantly increased breathing rate and lung capacity under the high temperatures of a fire scene, oxygen consumption rises sharply. The actual effective usage time is often only 25 to 30 minutes, or even less.

[0003] This problem is particularly prominent in high-rise building fire rescue. Taking a 30-story building as an example, it takes firefighters about 15 minutes to climb the stairs on foot to reach the fire floor carrying a full set of equipment. By this time, the air cylinders are more than half empty, leaving only 10 to 15 minutes for firefighting and search and rescue operations, after which they must evacuate immediately. Once the air supply is exhausted, firefighters face the life-threatening risk of suffocation and poisoning. Therefore, the traditional operational mode is: when a firefighting team enters or climbs a building to fight a fire, the logistics support team manually transports the air cylinders of their breathing apparatus to the operating floor to ensure the continuity of firefighting operations. However, this manual transport method has the following significant drawbacks:

[0004] (i) Low rescue efficiency. In high-rise buildings, it takes tens of minutes for personnel to travel back and forth to the ground to inflate the air, and firefighters spend a lot of time on ineffective round trips, seriously delaying the golden window for fire fighting.

[0005] (ii) Excessive physical exertion during operations. Firefighters carrying equipment frequently travel back and forth between high-rise buildings, resulting in a rapid depletion of their physical strength. Upon reaching the fire floor, they are no longer able to efficiently perform the core tasks of firefighting and search and rescue, leading to a significant decrease in the quality of rescue efforts.

[0006] (iii) Safety risks have increased significantly. When the gas cylinder is low, firefighters are forced to evacuate early or risk continuing to work. In high-rise buildings and factories with dense smoke and complex passageways, it is easy to get lost and enter dangerous areas when going back and forth to exchange air. In recent years, there have been many cases of firefighters being injured or killed because their gas cylinders ran out of air.

[0007] (iv) Insufficient emergency response capabilities for the group. Trapped people waiting for rescue in refuge floors or safe areas lack centralized gas supply means and cannot obtain effective respiratory protection in emergency situations.

[0008] Currently, some technical solutions have attempted to address the aforementioned problems. For example, Chinese patent CN117515405A discloses a high-rise air supply system and a fire truck with an aerial platform, which uses an air delivery pipeline arranged inside the boom of the fire truck to deliver compressed air to the inflation mechanism on the aerial platform. However, this solution is limited by the working height of the fire truck (usually not exceeding 100 meters), and cannot cover super high-rise buildings (above 100 meters). Furthermore, the air delivery pipeline must rely on the internal wiring of the boom, resulting in limited deployment locations and insufficient flexibility. In addition, the existing technology lacks a universal long-range air supply system that can be deployed independently and quickly along the exterior walls of buildings without relying on an aerial platform, possesses long-distance high-pressure stable delivery capability, and is compatible with various mainstream air breathing interfaces. Summary of the Invention

[0009] This invention addresses the shortcomings and deficiencies of existing technologies in high-rise building fire rescue, such as the need for firefighters to frequently travel to and from the ground to refill air cylinders for breathing apparatus, resulting in low rescue efficiency, high physical exertion, and high safety risks. It provides a remote air supply system that can be quickly deployed vertically along the exterior walls of high-rise buildings, remotely deliver air from the ground to the operating floors, and rapidly refill breathing apparatus on-site.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a fire-fighting high-rise remote air supply system, comprising a ground air supply unit, a high-pressure delivery hose, an external wall vertical hoisting unit, and a safety control unit. The ground air supply unit includes an air compressor and multiple high-pressure air tanks. The delivery hose is wound around an automatic winding mechanism. The external wall vertical hoisting unit includes a directional pulley, a traction rope, and an electric winch. The directional pulley is fixedly installed on the external wall. One end of the delivery hose is connected to the output end of the high-pressure air tank, and the other end of the delivery hose passes through the directional pulley and is connected to an inflation terminal.

[0011] In a preferred embodiment, the output port of the air compressor is connected to the input ports of multiple high-pressure air tanks via a pipe, and a first valve is provided on the pipe between the air compressor and the high-pressure air tanks. The output port of the high-pressure air tank is provided with an air outlet pipe, and an exhaust valve is provided on the air outlet pipe. One end of the air outlet pipe is connected to a delivery hose via a quick-fill inflator.

[0012] In a preferred embodiment, an inflation control panel is provided at the end of the delivery hose away from the high-pressure gas storage tank. The inflation control panel is provided with a plurality of extension air pipes, and each extension air pipe is provided with an inflation port at its end.

[0013] In a preferred embodiment, the safety control unit includes a controller and a pressure sensor and a flow sensor disposed on the air outlet pipe, the pressure sensor and the flow sensor being electrically connected to the controller.

[0014] In a preferred embodiment, one end of the traction rope is mounted on an electric winch, and the other end of the traction rope passes through a directional pulley and is connected to a delivery hose on the ground.

[0015] In a preferred embodiment, the delivery hose includes an inner layer, a middle layer, and an outer layer. The inner layer is made of Teflon (PTFE), the middle layer is a 304 stainless steel braided reinforcement layer, and the outer layer is a polyether (TPU) protective layer.

[0016] Compared with the prior art, the technical effects and advantages of the present invention are as follows:

[0017] 1. This invention breaks through the height limitation of aerial ladder trucks: without relying on the boom of the aerial ladder truck, it can independently lay air supply pipelines vertically along the exterior wall of any building of any height, making it suitable for fire rescue in super high-rise buildings (above 100 meters) and with a wider range of applications;

[0018] 2. This invention is flexible and quick to deploy: It integrates rope technology to achieve vertical hoisting of external walls, without the need for pre-embedded pipes inside the building. It can be quickly deployed at windows or balconies on any floor, avoiding severe friction between pipes and sharp objects on the external wall throughout the process. The work efficiency is significantly better than manual handling.

[0019] 3. The invention provides stable and reliable gas supply: the three-layer composite high-pressure hose can withstand pressure up to 50MPa and has the characteristics of explosion-proof, impact-resistant, high temperature resistant, wear-resistant and flame-retardant. It is suitable for various extreme and complex environments such as high temperature in fire scene, splashing molten slag, water accumulation, etc., and ensures safe and stable long-distance high-pressure gas supply.

[0020] 4. This invention has strong universality and adaptability: It adopts a standardized quick-connect connector, which can be seamlessly adapted to positive pressure air respirators of mainstream brands such as Beijing Jundun, making replacement easy and providing excellent practical adaptability.

[0021] 5. Cluster gas supply capacity of the present invention: The multi-interface gas filling control panel can fill multiple gas cylinders at the same time, meeting the needs of a large number of people for synchronous gas supply in the event of a fire.

[0022] 6. This invention significantly improves rescue safety and efficiency: it shortens the exposure time of firefighters in high-risk burning areas, effectively reducing operational safety risks; it ensures that firefighters can safely evacuate when there is sufficient gas supply, alleviating psychological panic caused by insufficient gas supply. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the high-pressure delivery hose when vertically hoisted from the exterior wall according to the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the inflation terminal after the hoisting is completed and the inflatable terminal is inflated.

[0025] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 4 This is a cross-sectional view of the high-pressure delivery hose of the present invention.

[0027] The attached diagram is labeled as follows: 1. High-pressure delivery hose; 101. Inner layer; 102. Middle layer; 103. Outer layer; 2. Air compressor; 3. High-pressure air tank; 4. Automatic winding mechanism; 5. Directional pulley; 6. Traction rope; 7. Electric winch; 8. Inflation terminal; 9. First valve; 10. Air outlet pipe; 11. Exhaust valve; 12. Quick inflation connector; 13. Inflation control panel; 14. Extension air hose; 15. Inflation interface; 16. Controller; 17. Pressure sensor; 18. Flow sensor. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] according to Figures 1-3 The fire-fighting high-rise remote air supply system shown includes a ground air supply unit, a high-pressure delivery hose 1, an external wall vertical hoisting unit, and a safety control unit. The ground air supply unit includes an air compressor 2 and multiple high-pressure air tanks 3. The delivery hose 1 is wound around an automatic winding mechanism 4. The external wall vertical hoisting unit includes a directional pulley 5, a traction rope 6, and an electric winch 7. The directional pulley 5 is fixedly installed on the external wall. One end of the delivery hose 1 is connected to the output end of the high-pressure air tank 3, and the other end of the delivery hose 1 passes through the directional pulley 5 and is connected to an inflation terminal 8.

[0030] In a preferred embodiment, the output port of the air compressor 2 is connected to the input port of a plurality of high-pressure air tanks 3 via a pipe, and a first valve 9 is provided on the pipe between the air compressor 2 and the high-pressure air tanks 3. The output port of the high-pressure air tanks 3 is provided with an air outlet pipe 10, and an exhaust valve 11 is provided on the air outlet pipe 10. One end of the air outlet pipe 10 is connected to the delivery hose 1 via a quick inflation connector 12.

[0031] In a preferred embodiment, an inflation control panel 13 is provided at the end of the delivery hose 1 away from the high-pressure gas storage tank 3. The inflation control panel 13 is provided with a plurality of extension air pipes 14, and each extension air pipe 14 is provided with an inflation port 15 at its end.

[0032] In a preferred embodiment, the safety control unit includes a controller 16 and a pressure sensor 17 and a flow sensor 18 disposed on the air outlet pipe 10, wherein the pressure sensor 17 and the flow sensor 18 are electrically connected to the controller 16.

[0033] In a preferred embodiment, one end of the traction rope 6 is mounted on the electric winch 7, and the other end of the traction rope 6 passes through the directional pulley 5 and is connected to the delivery hose 1 on the ground.

[0034] In a preferred embodiment, the delivery hose 1 includes an inner layer 101, a middle layer 102, and an outer layer 103. The inner layer 101 is made of Teflon PTFE material, with uniform wall thickness, smooth inner wall, and can withstand an ultra-wide temperature range of -200℃ to 260℃. It does not release media, is corrosion-resistant, and is not easily blocked. The middle layer 102 is a 304 stainless steel braided reinforcement layer, formed by high-density warp and weft braiding, with a rated pressure of up to 50MPa, explosion-proof and impact-resistant, and can withstand repeated bending without breaking the fibers. The outer layer 103 is a polyether TPU protective layer, which is wear-resistant, flame-retardant, moisture-proof, hydrolysis-resistant, and anti-aging.

[0035] The specific implementation method is as follows:

[0036] S1: Ground end fixing and release, place the air compressor 2 and high pressure air tank 3 in the ground air supply unit in the safe area of ​​the building's ground floor, start the automatic winding mechanism 4, release the high pressure delivery hose 1 wound on the automatic winding mechanism 4, and release the high pressure delivery hose 1 to the ground standby state.

[0037] S2: The vertical hoisting unit system for the exterior wall is deployed. Firefighters carry a towing rope 6 and a directional pulley 5, and go up the evacuation staircase or fire elevator to the target air-filled floor (such as a refuge floor or the floor below the fire floor). Fixed anchor points are set at the openings in the exterior wall, such as windows or balconies, and directional pulleys 5 are installed.

[0038] S3: Vertically hoist the high-pressure delivery hose along the exterior wall. Lower one end of the traction rope 6 to the ground. Ground personnel reliably connect the end of the high-pressure delivery hose 1 to the traction rope 6. Upper-level personnel use manual or electric winch 7 to vertically lift the high-pressure delivery hose 1 along the exterior wall to the air-filling layer. The high-pressure delivery hose 1 can be equipped with a climbing device to assist in lifting. Throughout the process, avoid severe friction between the pipeline and sharp objects on the exterior wall.

[0039] S4: Horizontal extension and inflation point setting. After the high-pressure delivery hose 1 reaches the inflation layer, it extends horizontally to the safe area through the corner directional pulley 5 or manual guidance. The inflation terminal 8 is connected to the extension air pipe 14 through the inflation interface 15 to form a temporary inflation station.

[0040] S5: On-site inflation operation. Firefighters can connect the inflation terminal 8 to the inflation interface 15 nearby, open the exhaust valve 11 on the air outlet pipe 10 on the high-pressure air tank 3, and continue to engage in fire fighting and search and rescue operations after completing the rapid inflation. The inflation time for a single bottle is only a few minutes, which greatly improves the efficiency of front-line operations.

[0041] For example, a fire breaks out on the 35th floor of a super high-rise building (150 meters tall). After the fire truck arrives at the scene, it uses the method described above to vertically lift the high-pressure delivery hose 1 along the exterior wall to the 34th floor (the floor below the fire floor) refuge floor, where a gas filling station is set up. The fire crew does not need to return to the ground and can complete the gas cylinder replenishment on the 34th floor. A single filling takes 1-3 minutes, extending the operational endurance by more than double, and firmly grasping the golden window for fire rescue.

[0042] Fire rescue in a large-span factory building. The internal passageways of a large-span factory building were intricate and filled with thick smoke. Firefighters, following the fire hoses, simultaneously extended high-pressure delivery hoses horizontally to the work area, setting up a temporary air filling point in a safe zone. Rescuers did not need to detour through complex and dangerous routes to get air, and even when physically exhausted, they still had sufficient air reserves to evacuate safely.

[0043] Emergency gas supply for refuge floors. In high-rise building fires, a large number of people are trapped in refuge floors. After high-pressure delivery hoses are delivered to the refuge floors, multiple sets of rescue gas cylinders and simple breathing masks are simultaneously filled through a multi-filling interface panel, meeting the needs of a large number of people for simultaneous gas supply and ensuring the breathing safety of trapped personnel in all aspects.

[0044] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0045] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0046] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fire-fighting high-rise remote gas supply system, characterized in that: The system includes a ground-based air supply unit, a high-pressure delivery hose (1), an external wall vertical hoisting unit, and a safety control unit. The ground-based air supply unit includes an air compressor (2) and multiple high-pressure air tanks (3). The delivery hose (1) is wound around an automatic winding mechanism (4). The external wall vertical hoisting unit includes a directional pulley (5), a traction rope (6), and an electric winch (7). The directional pulley (5) is fixedly installed on the external wall. One end of the delivery hose (1) is connected to the output end of the high-pressure air tank (3), and the other end of the delivery hose (1) passes through the directional pulley (5) and is connected to an inflation terminal (8).

2. The fire-fighting high-rise remote gas supply system according to claim 1, characterized in that: The output port of the air compressor (2) is connected to the input port of multiple high-pressure air tanks (3) through a pipe, and a first valve (9) is provided on the pipe between the air compressor (2) and the high-pressure air tanks (3). The output port of the high-pressure air tanks (3) is provided with an air outlet pipe (10), and an exhaust valve (11) is provided on the air outlet pipe (10). One end of the air outlet pipe (10) is connected to the delivery hose (1) through a quick inflation connector (12).

3. A fire-fighting high-rise remote gas supply system according to claim 1, characterized in that: The delivery hose (1) is provided with an inflation control panel (13) at one end away from the high-pressure gas storage tank (3). The inflation control panel (13) is provided with a plurality of extension air pipes (14), and each extension air pipe (14) is provided with an inflation port (15) at its end.

4. A fire-fighting high-rise remote gas supply system according to claim 2, characterized in that: The safety control unit includes a controller (16) and a pressure sensor (17) and a flow sensor (18) disposed on the air outlet pipe (10), wherein the pressure sensor (17) and the flow sensor (18) are electrically connected to the controller (16).

5. A fire-fighting high-rise remote gas supply system according to claim 1, characterized in that: One end of the traction rope (6) is mounted on the electric winch (7), and the other end of the traction rope (6) passes through the directional pulley (5) and is connected to the delivery hose (1) on the ground.

6. A fire-fighting high-rise remote gas supply system according to claim 1, characterized in that: The delivery hose (1) includes an inner layer (101), a middle layer (102) and an outer layer (103). The inner layer (101) is made of Teflon PTFE, the middle layer (102) is a 304 stainless steel braided reinforcement layer, and the outer layer (103) is a polyether TPU protective layer.

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