Tunnel Fire-Fighting Water Air Intake Device, System and Application

Abstract

A device, system and application for extracting water from air for tunnel fire fighting of the present invention belong to the technical field of tunnel fire fighting. The air water extraction device includes an axial air duct, a turbine, an upper cover shell, a lower cover shell, a guide air duct and an outlet air duct. The guide air duct is provided with a plurality of convex arc spheres arranged at intervals along its length direction, and the corner between the convex arc sphere and the guide air duct is set to be an arc transition. The air water extraction system includes a water guide pipe, a low-level water tank and a plurality of air water extraction devices installed on the windward side of the tunnel mountain range and connected to the water guide pipe. The present invention solves the problem of the water supply source for the tunnel fire fighting robot on the highway.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel fire fighting, and in particular relates to an air water intake device, system and application of water for tunnel fire fighting. Background Art

[0002] In recent years, with the development of tunnel excavation technology, tunnels of three or four kilometers have become very common, and ultra-long tunnels of even longer lengths of more than ten kilometers have gradually begun to be built, which greatly facilitates people's transportation. However, with the advancement of highway construction, there are more and more highway tunnels in mountainous and plateau areas. Highway tunnels are usually far away from crowded cities. Once a fire occurs, it is difficult for fire rescue personnel to quickly reach the scene, and most ordinary drivers and passengers who are close to the fire point will waste the golden time of fire fighting in the early stage because they do not know how to use the fire fighting facilities in the tunnel. Therefore, it is necessary to build a tunnel fire fighting system. In addition, because the tunnel is narrow and relatively closed, trapped vehicles are prone to traffic congestion and paralysis, hindering firefighters and rescue personnel from entering the scene, further expanding the disaster. In order to eliminate traffic obstacles, setting up a firefighting robot traveling along the guide rail at the top of the tunnel has become a current research hotspot. As a result, how to provide the robot with a convenient and sufficient water source to ensure the water demand for firefighting has become an urgent problem to be solved. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide an air water intake device, system and application for tunnel fire fighting water, so as to solve the water supply problem of highway tunnel fire fighting robots.

[0004] To achieve the above-mentioned purpose, the present invention provides an air water intake device for tunnel fire fighting, comprising an axial wind belt, a turbine, an upper cover shell, a lower cover shell, an air duct and an air outlet duct, wherein the air duct is provided with a plurality of convex arc spheres arranged at intervals along its length direction, and the corner between the convex arc sphere and the air duct is set as an arc transition.

[0005] By adopting the above scheme, through the arrangement of multiple convex arc spheres, the air duct buried below 2m underground can expand the contact surface with the underground, and can make full use of the low temperature difference underground to cool the air in the air duct, so that the moisture in the air can be quickly condensed. At the same time, the arc structure of the convex arc sphere and the arc transition at the corner between the convex arc sphere and the air duct can ensure that the condensed moisture can flow down the air duct, and the dust or sand entering the air duct can be smoothly removed through this structure, and will not cause blockage and backlog in the air duct.

[0006] Furthermore, the volumes of the plurality of convex arc spheres increase gradually from top to bottom, which can maximize the temperature difference between the ground and underground.

[0007] Further, a plurality of tapered shell pieces are arranged at intervals along the length direction of the air outlet pipe. This can increase the contact area with the air entering the air duct, accelerating the condensation of moisture in the air.

[0008] Further, a plurality of through holes are provided on the tapered shell pieces. This can enable the air entering the air duct to pass through the through holes to obtain acceleration, thereby enhancing the condensation effect.

[0009] Further, the through holes are inclined holes, and a plurality of inclined holes are arranged in a defined arc. The air outlet pipe is fixedly connected to the turbine. This can enable the air entering the air duct to obtain rotational power through the inclined holes and the arc, so that the air outlet pipe assists the turbine to rotate.

[0010] The present invention also provides a tunnel fire-fighting water air intake system, which includes a water conduit and a low-level water tank, and further includes a plurality of the above-mentioned air intake devices installed on the windward side of the tunnel mountain range and connected to the water conduit.

[0011] With the above solution, the condensed air water in the plurality of air intake devices is discharged and then enters the water conduit, and then enters the low-level water tank for collection and storage, which is convenient for use; at the same time, the air intake devices are built on the windward side of the tunnel mountain range, and a plurality of them are installed according to the local climate and water content and are connected in series, maximizing the operating efficiency of the air intake devices.

[0012] Preferably, it further includes a high-level water tank connected to the low-level water tank through a fire pump. The high-level water tank is connected to a fire robot in the tunnel through a downpipe. This can provide gravitational potential energy through the high-level water tank so that sufficient water pressure can be maintained in the downpipe to supply fire-fighting water.

[0013] Preferably, a liquid level sensor is arranged in the high-level water tank. The signal output end of the liquid level sensor is connected to the signal input end of the single-chip microcomputer, and the control output end of the single-chip microcomputer is connected to the control input end of the fire pump. This can ensure that there is enough water volume in the high-level water tank to cope with tunnel fires.

[0014] Preferably, a sand settling tank is provided between the water conduit and the low-level water tank. The sand settling tank is connected to the low-level water tank through an overflow channel. This can filter the dust or sand carried in the air intake devices, providing a relatively clean water source for fire-fighting water.

[0015] The present invention also applies the above-mentioned tunnel fire-fighting water air intake system to tunnel construction. This can solve part of the water demand in tunnel construction in water-scarce areas.

[0016] The advantages of the present invention are as follows:

[0017] 1. The air water intake device for tunnel fire fighting water provided by the present invention, the arc-shaped structure of its convex arc sphere and the arc transition structure arranged at the corner between the convex arc sphere and the air duct not only facilitate the downward flow of the condensed water in the air duct, but also can effectively exclude the dust or sand entering the air duct in areas with more dust or sand and wind, solving the problem of internal blockage.

[0018] 2. The air water intake system for tunnel fire fighting water provided by the present invention has a simple structure, is easy to construct, has relatively low costs for early construction and later maintenance, can form a good match with the fire fighting robot, provide a safe and reliable water supply source for it, is conducive to extinguishing the fire source in the initial stage of the fire by the fire fighting robot, and effectively reduces the harm caused by tunnel fires.

[0019] 3. The air water intake system for tunnel fire fighting water provided by the present invention can also be applied during tunnel construction, solving part of the water demand in tunnel construction in water-scarce areas.

[0020] Other advantages, objectives and features of the present invention will be elaborated to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be learned from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification. Brief Description of the Drawings

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the drawings, where:

[0022] Figure 1 is a schematic structural diagram of the air water intake device for tunnel fire fighting water of the present invention;

[0023] Figure 2 is Figure 1 the upper enlarged schematic diagram in

[0024] Figure 3 is Figure 1 the enlarged schematic diagram of the conical shell piece in

[0025] Figure 4 is a schematic structural diagram of the air water intake system for tunnel fire fighting water of the present invention;

[0026] Reference numerals: shaft air belt 1, turbine 2, upper cover shell 3, lower cover shell 4, air duct 5, air outlet pipe 6, convex arc sphere 7, conical shell piece 8, through hole 9, water guide pipe 10, low-level water tank 11, fire pump 12, high-level water tank 13, water pipe 14, fire fighting robot 15, tunnel mountain range 16. Detailed Description of the Invention

[0027] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0028] As Figure 1 , 2 , shown in FIG. 4, the tunnel fire fighting water air intake system according to the embodiment of the present invention includes a water conduit 10, a low-level water tank 11, and a plurality of air intake devices installed on the windward side of the tunnel mountain range 16 and connected to the water conduit 10. The air intake device includes a shaft-type air belt 1, a turbine 2, an upper housing 3, a lower housing 4, an air duct 5, and an air outlet duct 6. Among them, the upper housing 3 and the lower housing 4 are buckled together. The lower housing 4 is provided with a turbine 2, and an upper part is provided with a shaft-type air belt 1 rotatably connected to the turbine 2. The lower part is connected to the air duct 5, and the air duct 5 is provided with a plurality of convex arc spheres 7 arranged at intervals along its length direction. The corner between the convex arc sphere 7 and the air duct 5 is set as an arc transition. With the above solution, the air intake device uses the wind force to drive the turbine to rotate through the shaft-type air belt, and the turbine sucks air into the air duct partially buried underground, and uses the temperature of the underground air duct to be lower than the temperature of the air to condense and flow out the moisture in the air, so as to achieve the purpose of taking water from the air. In this way, the condensed air water in the plurality of air intake devices is discharged and then enters the water conduit, and then enters the low-level water tank for collection and storage for easy use; at the same time, through the setting of a plurality of convex arc spheres, the air duct buried more than 2 m underground can expand the contact surface with the ground, and the low temperature difference underground can be fully utilized to cool the air in the air duct, so that the moisture in the air can be quickly condensed. In addition, the arc-shaped structure of the convex arc sphere and the arc transition at the corner between the convex arc sphere and the air duct can ensure that the condensed moisture can flow down along the air duct, and for the dust or sand and dust entering the air duct, it can also be smoothly discharged through this structure without causing blockage and backlog in the air duct. And the air intake device is built on the windward side of the tunnel mountain range, and a plurality of them are installed according to the local climate and water content and are connected in series, so as to maximize the operating efficiency of the air intake device.

[0029] In another embodiment, the volumes of the plurality of convex arc spheres 7 increase successively from top to bottom. In this way, the temperature difference between the ground and the underground can be maximally increased.

[0030] In another embodiment, the air outlet duct 6 is provided with a plurality of tapered shell pieces 8 arranged at intervals along its length direction. In this way, the contact area with the air entering the air duct can be increased, and the condensation of moisture in the air can be accelerated. At the same time, the tapered shell pieces are made of a metal material with high thermal conductivity, such as copper, which can quickly cool the air and is conducive to the condensation of moisture in the air.

[0031] As Figure 3 shown, a plurality of through holes 9 are provided on the tapered shell piece 8 in another embodiment. In this way, the air entering the air duct can pass through the through holes to obtain a certain acceleration, thereby improving the condensation effect. To further improve this effect, the through holes can be set as tapered holes. In another embodiment, the through holes 9 are inclined holes, and a plurality of inclined holes are arranged in a set arc, and the air outlet duct 6 is fixedly connected to the turbine 2. In this way, not only can the air entering the air duct obtain rotational power through the inclined holes and the arc, so that the air outlet duct assists the turbine to rotate; but also the dust or sand carried in the air can be thrown towards the inner wall of the air duct for smooth outflow without causing blockage.

[0032] The air water intake system in another embodiment further includes a high-level water tank 13 connected to the low-level water tank 11 through a fire pump 12, and the high-level water tank 13 is connected to a fire robot 15 in the tunnel through a downpipe 14. In this way, the gravitational potential energy provided by the high-level water tank can keep sufficient water pressure in the downpipe to supply fire fighting water.

[0033] A liquid level sensor (not shown) is provided in the high-level water tank 13 in another embodiment. The signal output end of the liquid level sensor is connected to the signal input end of a single-chip microcomputer (not shown), and the control output end of the single-chip microcomputer is connected to the control input end of the fire pump 12. In this way, through the setting of the hydraulic sensor, it can be ensured that there is enough water volume in the high-level water tank to cope with tunnel fires.

[0034] A grit chamber (not shown) is provided between the water conduit 10 and the low-level water tank 11 in another embodiment, and the grit chamber is connected to the low-level water tank 11 through an overflow channel. In this way, the dust or sand carried in the air water intake device can be filtered, providing a relatively clean water source for fire fighting water.

[0035] In addition, the air water intake system for tunnel fire fighting water can also be applied during tunnel construction and can be used to solve part of the water demand during tunnel construction in water-scarce areas. This part of the water demand can be the domestic water for workers or the water for equipment such as machinery and tools.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. Tunnel fire-fighting water air intake device, comprising an axial air duct (1), a turbine (2), an upper housing (3), a lower housing (4), a duct (5) and an air outlet duct (6), characterized in that, The upper housing (3) and the lower housing (4) are fastened to each other. The turbine (2) is arranged inside the lower housing (4). The shaft-type air belt (1) which is rotationally connected to the turbine (2) is arranged at the upper part thereof. The lower part thereof is connected to the air duct (5). A plurality of convex arc spheres (7) which are arranged at intervals along the length direction of the air duct (5) are arranged on the air duct (5), and the corners between the convex arc spheres and the air duct are set to be arc transitions; the volumes of the plurality of convex arc spheres increase successively from top to bottom; a plurality of conical shell pieces (8) which are arranged at intervals along the length direction are arranged on the air outlet duct; a plurality of through holes (9) are arranged on the conical shell pieces; the through holes are inclined holes, and the plurality of inclined holes are arranged according to a set radian. The air outlet duct is fixedly connected to the turbine.

2. Tunnel fire-fighting water air intake system, comprising a water conduit (10) and a low-level water tank (11), characterized in that, It further comprises a plurality of air water intake devices as described in claim 1, which are installed on the windward side of the tunnel mountain range (16) and are connected to a water guide pipe; a grit chamber is arranged between the water guide pipe and the low-level water tank, and the grit chamber and the low-level water tank are connected through an overflow channel.

3. The tunnel fire fighting water air intake system according to claim 2, characterized in that It further comprises a high-level water tank (13) which is connected to the low-level water tank through a fire pump (12), and the high-level water tank is connected to a fire robot (15) inside the tunnel through a down pipe (14).

4. The tunnel fire fighting water air intake system according to claim 3, characterized in that, A liquid level sensor is arranged inside the high-level water tank. A signal output end of the liquid level sensor is connected to a signal input end of a single-chip microcomputer, and a control output end of the single-chip microcomputer is connected to a control input end of the fire pump.

5. Application of the tunnel fire fighting water air intake system as described in any one of claims 2-4 in tunnel construction.

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