Automatic fire extinguishing device for foundation pit gas film

Abstract

The utility model discloses an automatic fire extinguishing device for a foundation pit gas film, which belongs to the technical field of fire extinguishing devices and comprises a fixed foundation, a gas film main body is arranged at the upper end of the fixed foundation, a fire extinguishing component is arranged at the upper end of the fixed foundation and positioned below the gas film main body, and detection components are arranged on two sides of the fixed foundation. According to the fire extinguishing device, the fire extinguishing assembly and the electric moving seat move on the I-shaped sliding rail, the electric moving seat drives the gas conveying pipe and the spray head to move to the fire position, the first water pump sucks nitrogen in the nitrogen source, the nitrogen is conveyed to the gas conveying pipe through the first telescopic hose, and then the nitrogen is discharged from the spray head; the second water pump sucks water in the water tank, the water is conveyed through the second telescopic hose and then discharged out of the spray head, a fire disaster part is extinguished rapidly, the structure is simple, and fire extinguishment at any position is facilitated.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire extinguishing devices, specifically relating to an automatic fire extinguishing device for an air-supported membrane structure in a foundation pit. Background Technology

[0002] Currently, air-supported membrane structures utilize high-strength, highly flexible membrane materials. They operate on the principle of air pressure support within a sealed space. After the outer edge of the membrane is fixed to the ground foundation or the perimeter of the roof structure, an inflation system delivers a large amount of air into the internal space between the membrane and the ground. When the pressure inside the membrane exceeds the pressure outside, a pressure difference is created, supplying air to the interior and forming positive pressure. This air then supports the membrane, covering the ground or roof, creating a large-span, column-free architectural space. A complete air-supported membrane structure system typically also includes a lighting system and an access control system.

[0003] Chinese Patent Application No. 201720917508.7 discloses an air-supported membrane structure with a nitrogen fire extinguishing device, relating to the field of air-supported membrane structure technology. The air-supported membrane structure includes: a fixed foundation, an air-supported membrane, and a nitrogen fire extinguishing device. The nitrogen fire extinguishing device includes: a nitrogen source and a nitrogen supply network; the nitrogen supply network is connected to the nitrogen source; multiple nozzles are installed on the nitrogen supply network, with the nozzles positioned close to and facing the air-supported membrane. This invention has a simple structure and is easy to use. When a fire is about to occur, nitrogen from the nitrogen source is sprayed from the nozzles onto the air-supported membrane. After the nitrogen diffuses on the surface of the air-supported membrane, it forms a nitrogen barrier, initially preventing combustion. Subsequently, as nitrogen is continuously sprayed out, the oxygen content inside the air-supported membrane structure decreases, thereby further controlling the spread of fire within the structure and even extinguishing the flames.

[0004] The aforementioned patents have the following drawbacks in use: poor fire extinguishing effect, complex structure, causing inconvenience in use, fixed position of fire detectors, resulting in increased cost, and inability to detect at arbitrary locations. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides an automatic fire extinguishing device for foundation pit air-supported membrane structures, characterized by its excellent fire extinguishing effect and ability to detect fires at any location.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic fire extinguishing device for an air-supported membrane structure in a foundation pit, comprising a fixed foundation, an air-supported membrane body at the upper end of the fixed foundation, a fire extinguishing component at the lower end of the fixed foundation below the air-supported membrane body, detection components on both sides of the fixed foundation, a nitrogen source on one side below the air-supported membrane body, a water pump connected to the outlet of the nitrogen source, a telescopic hose connected to the outlet of the water pump, a water tank on the other side below the air-supported membrane body, a water pump connected to the outlet of the water tank, a telescopic hose connected to the outlet of the water pump, and several alarm devices on the side of the fixed foundation.

[0007] Preferably, the fire extinguishing assembly includes an air supply pipe, nozzles, an electric movable base, an I-shaped slide rail, a support frame, and nozzles. The upper end of the I-shaped slide rail is provided with an electric movable base, the upper end of the electric movable base is provided with an air supply pipe, the upper end of the air supply pipe is provided with several nozzles, the side of the electric movable base is provided with a support frame, and the bottom of the support frame is connected to and provided with several nozzles.

[0008] Preferably, the nozzle's connecting pipe is connected to the second telescopic hose, and the air supply pipe is connected to the first telescopic hose.

[0009] Preferably, control valves are provided at the connection points of the first telescopic hose and the first water pump, and at the connection points of the second telescopic hose and the second water pump.

[0010] Preferably, the detection component includes a modular slide rail, an electric slide block, a fire detector, and a mounting bracket. The modular slide rail has an electric slide block in its middle groove, a mounting bracket is located at the lower end of the electric slide block, and a fire detector is located on the side of the mounting bracket.

[0011] Preferably, the spliced ​​slide rail is fastened to the fixed base by bolts, and a T-slot is provided in the middle of the spliced ​​slide rail.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model is equipped with a fire extinguishing component. The electric moving base moves on the I-shaped slide rail. The electric moving base drives the gas supply pipe and nozzle to move to the fire position. Water pump one draws nitrogen from the nitrogen source and delivers it to the gas supply pipe through the first telescopic hose. Then it is discharged from the nozzle, so that a nitrogen barrier is formed on the inner wall of the gas film body, which prevents the flame from burning in the gas film part. Water pump two draws water from the water tank and delivers it through the second telescopic hose. Then it is discharged from the nozzle, so that the fire can be extinguished quickly. The structure is simple and convenient for extinguishing fires in any position.

[0014] 2. This utility model is equipped with a detection component. According to the length of the fixed foundation, a spliced ​​slide rail of corresponding length is installed. The spliced ​​slide rail is fixed to the side of the fixed foundation by bolts. The electric slide block slides in the spliced ​​slide rail and drives the fire detector to move, so that the fire detector can perform fire detection at any position, improve the detection range and reduce costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the fire extinguishing component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the detection component structure of this utility model;

[0018] In the diagram: 1. Air film main body; 2. Fire extinguishing components; 21. Gas supply pipe; 22. Nozzle; 23. Electric moving base; 24. I-shaped slide rail; 25. Support frame; 26. Nozzle head; 3. Telescopic hose one; 4. Control valve; 5. Water pump one; 6. Nitrogen source; 7. Alarm device; 8. Water tank; 9. Water pump two; 10. Fixed base; 11. Detection components; 111. Interlocking slide rail; 112. Electric slide base; 113. Fire detector; 114. Fixed frame; 12. Telescopic hose two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] Please see Figure 1-3 The present invention provides the following technical solution: an automatic fire extinguishing device for an air-supported membrane structure in a foundation pit, comprising a fixed foundation 10, an air-supported membrane body 1 at the upper end of the fixed foundation 10, a fire extinguishing component 2 at the lower end of the fixed foundation 10 below the air-supported membrane body 1, detection components 11 on both sides of the fixed foundation 10, a nitrogen source 6 on one side below the air-supported membrane body 1, a water pump 5 connected to the outlet of the nitrogen source 6, a telescopic hose 3 connected to the outlet of the water pump 5, a water tank 8 on the other side below the air-supported membrane body 1, a water pump 9 connected to the outlet of the water tank 8, a telescopic hose 12 connected to the outlet of the water pump 9, and several alarm devices 7 on the side of the fixed foundation 10.

[0022] Specifically, the fire extinguishing component 2 includes an air supply pipe 21, nozzles 22, an electric movable base 23, an I-shaped slide rail 24, a support frame 25, and nozzles 26. The upper end of the I-shaped slide rail 24 is provided with an electric movable base 23, the upper end of the electric movable base 23 is provided with an air supply pipe 21, the upper end of the air supply pipe 21 is provided with several nozzles 22, the side of the electric movable base 23 is provided with a support frame 25, and the bottom of the support frame 25 is connected to several nozzles 26.

[0023] By adopting the above technical solution, the electric movable seat 23 moves on the I-shaped slide rail 24. The electric movable seat 23 drives the gas supply pipe 21 and the nozzle 26 to move to the fire position. The water pump 5 draws nitrogen from the nitrogen source 6 and delivers it to the gas supply pipe 21 through the telescopic hose 3. Then it is discharged from the nozzle 22, so that a nitrogen barrier is formed on the inner wall of the gas film body 1, which prevents the flame from burning in the gas film part. The water pump 9 draws water from the water tank 8 and delivers it through the telescopic hose 12. Then it is discharged from the nozzle 26, so that the fire is quickly extinguished. The structure is simple.

[0024] Specifically, the nozzle 26 is connected to the telescopic hose 12, and the air supply pipe 21 is connected to the telescopic hose 3.

[0025] By adopting the above technical solution, water pump 5 draws nitrogen from nitrogen source 6, delivers it to gas supply pipe 21 through telescopic hose 3, and then discharges it from nozzle 22, so that a nitrogen barrier is formed on the inner wall of the gas film body 1, preventing the flame from burning in the gas film part. Water pump 9 draws water from water tank 8, delivers it through telescopic hose 12, and then discharges it from nozzle 26, so that the fire site can be extinguished quickly.

[0026] Specifically, control valves 4 are installed at the connection points of telescopic hose 13 and water pump 15, and at the connection points of telescopic hose 212 and water pump 29.

[0027] By adopting the above technical solution, it is easy to control and avoids the spraying of nitrogen and water when not in use.

[0028] In this embodiment, fire detection is performed by the detection component 11, the electric moving base 23 moves on the I-shaped slide rail 24, and the electric moving base 23 drives the gas supply pipe 21 and the nozzle 26 to move to the fire position. The water pump 5 draws nitrogen from the nitrogen source 6 and delivers it to the gas supply pipe 21 through the telescopic hose 3, and then discharges it from the nozzle 22, so that a nitrogen barrier is formed on the inner wall of the gas film body 1 to prevent the flame from burning in the gas film part. The water pump 9 draws water from the water tank 8 and delivers it through the telescopic hose 12, and then discharges it from the nozzle 26, so that the fire is quickly extinguished. The structure is simple and convenient for extinguishing fires at any position.

[0029] Example 2

[0030] The difference between this embodiment and embodiment 1 is that the detection component 11 includes a splicing slide rail 111, an electric slide block 112, a fire detector 113, and a fixing frame 114. The splicing slide rail 111 has an electric slide block 112 in the middle groove, the electric slide block 112 has a fixing frame 114 at the lower end, and the fixing frame 114 has a fire detector 113 on the side.

[0031] By adopting the above technical solution, a splicing slide rail 111 of corresponding length is installed according to the length of the fixed foundation 10. The splicing slide rail 111 is fixed to the side of the fixed foundation 10 by bolts. The electric slide block 112 slides in the splicing slide rail 111. The electric slide block 112 drives the fire detector 113 to move, so that the fire detector 113 can perform fire detection at any position, improve the detection range, reduce the number of fire detectors 113, and reduce costs.

[0032] Specifically, the splicing slide rail 111 is fastened to the fixed base 10 by bolts, and a T-slot is provided in the middle of the splicing slide rail 111.

[0033] By adopting the above technical solution, it is convenient to install the corresponding length of the splicing slide rail 111 according to the length of the fixed foundation 10. The splicing slide rail 111 is fixed to the side of the fixed foundation 10 by bolts.

[0034] In this embodiment, a spliced ​​slide rail 111 of corresponding length is installed according to the length of the fixed foundation 10. The spliced ​​slide rail 111 is fixed to the side of the fixed foundation 10 by bolts. The electric slide block 112 slides in the spliced ​​slide rail 111. The electric slide block 112 drives the fire detector 113 to move, so that the fire detector 113 can perform fire detection at any position, improve the detection range and reduce costs.

[0035] The structure and operating principle of the air-supported membrane body 1, control valve 4, water pump 5, nitrogen source 6, alarm device 7, fixed foundation 10 and fire detector 113 in this utility model have been disclosed in an air-supported membrane building with a nitrogen fire extinguishing device disclosed in Chinese patent application number 201720917508.7.

[0036] The working principle and usage process of this utility model are as follows: When using this utility model, a spliced ​​slide rail 111 of corresponding length is installed according to the length of the fixed foundation 10. The spliced ​​slide rail 111 is fixed to the side of the fixed foundation 10 by bolts. The electric slide seat 112 slides in the spliced ​​slide rail 111. The electric slide seat 112 drives the fire detector 113 to move, so that the fire detector 113 can perform fire detection at any position. Fire detection is performed through the detection component 11. The electric moving seat 23 moves on the I-shaped slide rail 24. The electric moving seat 23 drives the gas supply pipe 21 and the nozzle 26 to move to the fire position. The water pump 5 draws nitrogen from the nitrogen source 6 and delivers it to the gas supply pipe 21 through the telescopic hose 3. Then it is discharged from the nozzle 22, so that a nitrogen barrier is formed on the inner wall of the gas film body 1, preventing the flame from burning in the gas film part. The water pump 9 draws water from the water tank 8 and delivers it through the telescopic hose 12. Then it is discharged from the nozzle 26, so that the fire is quickly extinguished. The structure is simple and convenient for extinguishing fires at any position.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of automatic fire extinguishing device for foundation pit air film, including fixed base (10), it is characterized by: The upper end of the fixed base (10) is provided with an air film body (1), the upper end of the fixed base (10) is below the air film body (1) and provided with a fire extinguishing assembly (2), both sides of the fixed base (10) are provided with a detection assembly (11), one side below the air film body (1) is provided with a nitrogen source (6), the gas outlet of the nitrogen source (6) is connected with a water pump one (5), the gas outlet of the water pump one (5) is connected with a flexible hose one (3), the other side below the air film body (1) is provided with a water tank (8), the water outlet of the water tank (8) is connected with a water pump two (9), the water outlet of the water pump two (9) is connected with a flexible hose two (12), and the side of the fixed base (10) is provided with a plurality of alarm devices (7); The fire extinguishing assembly (2) comprises a gas conveying pipe (21), a nozzle (22), an electric moving seat (23), an I-shaped slide rail (24), a support frame (25) and a spray head (26), wherein the upper end of the I-shaped slide rail (24) is provided with the electric moving seat (23), the upper end of the electric moving seat (23) is provided with the gas conveying pipe (21), the upper end of the gas conveying pipe (21) is provided with a plurality of nozzles (22), the side of the electric moving seat (23) is provided with the support frame (25), and the bottom of the support frame (25) is connected with a plurality of spray heads (26).

2. The automatic fire extinguishing device for foundation pit air film according to claim 1, characterized in that: The connecting pipe of the spray head (26) is connected with the flexible hose two (12), and the gas conveying pipe (21) is connected with the flexible hose one (3).

3. The automatic fire extinguishing device for foundation pit air film according to claim 1, characterized in that: The connecting places of the flexible hose one (3) and the water pump one (5) and the connecting places of the flexible hose two (12) and the water pump two (9) are all provided with control valves (4).

4. The automatic fire extinguishing device for foundation pit air film according to claim 1, characterized in that: The detection assembly (11) comprises a spliced slide rail (111), an electric sliding seat (112), a fire detector (113) and a fixing frame (114), wherein the middle sliding groove of the spliced slide rail (111) is provided with the electric sliding seat (112), the lower end of the electric sliding seat (112) is provided with the fixing frame (114), and the side of the fixing frame (114) is provided with the fire detector (113).

5. The automatic fire extinguishing device for foundation pit air film according to claim 4, characterized in that: The spliced slide rail (111) and the fixed base (10) are connected through bolts, and the middle of the spliced slide rail (111) is provided with a T-shaped groove.

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