Airborne hovering type power-driven foam fire extinguishing device

Abstract

An airborne hovering type power-driven foam fire extinguishing device comprises a support, a foam liquid storage device, a gas storage device, a pneumatic mixer, a foam generator, a control valve and a hook structure, wherein the foam liquid storage device, the gas storage device, the pneumatic mixer, the foam generator, the control valve and the hook structure are all installed on the support. The control valve is mounted at an outlet of the gas storage device; the gas storage device is communicated with a gas inlet of the pneumatic mixer; the foam liquid storage device is communicated with a liquid inlet of the pneumatic mixer; a liquid outlet of the pneumatic mixer is communicated with an inlet of the foam generator; the hook structure is fixed to the foam liquid storage device or the support. According to the device, the control valve is used for controlling opening and closing of the gas storage device and the gas outlet rate, the proportion of foam liquid and gas output by the pneumatic mixer is adjusted, and therefore the proportion of foam output by the foam generator is adjusted, the optimal fire extinguishing effect is achieved, and meanwhile the hook structure can be connected with an external structure. In addition, the fire extinguishing device can be repeatedly filled and used, and has high social benefits and economic benefits.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing devices, in particular to an airborne hovering power-driven foam fire extinguishing device. Background Art

[0002] The foam fire extinguishing system is one of the preferred fire extinguishing systems today. It generates foam through a foam generator to isolate the burning body from the air, suffocating the fire source due to lack of oxygen, and taking away the heat with the foam breakage, thus achieving a cooling effect. However, in actual use, the existing foam generators have an improper ratio of foam liquid and gas, which prolongs the fire extinguishing time and causes more economic losses. Utility Model Content

[0003] In order to solve the problem that the existing foam generator has an improper ratio of foam liquid and gas during actual use, which leads to a prolonged fire extinguishing time and thus causes more economic losses, the utility model provides an airborne hovering power-driven foam fire extinguishing device, comprising: a bracket (1), a foam liquid storage device (2), a gas storage device (3), a pneumatic mixer (4), a foam generator (5), a control valve and a hook structure;

[0004] The support (1) is an annular structure, and the foam liquid storage device (2) is installed in the annular structure;

[0005] The gas storage device (3), the pneumatic mixer (4), the foam generator (5) and the control valve are all installed in the annular structure;

[0006] The control valve is installed at the outlet of the gas storage device (3);

[0007] The pneumatic mixer (4) has a driving gas inlet, a liquid inlet and a gas-liquid mixture outlet, and the pneumatic mixer (4) is driven by the pressurized gas provided by the gas storage device (3);

[0008] The gas storage device (3) is in communication with the gas inlet of the pneumatic mixer (4);

[0009] The foam liquid storage device (2) is in communication with the liquid inlet of the pneumatic mixer (4);

[0010] The gas-liquid mixture outlet of the pneumatic mixer (4) is in communication with the inlet of the foam generator (5);

[0011] The hook structure is fixed to the foam liquid storage container (2) or the bracket.

[0012] Preferably, the support (1) comprises a large circular ring and a small circular ring which are arranged concentrically and a plurality of radial connecting rods;

[0013] The plurality of radial connecting rods are arranged between the large circular ring and the small circular ring along the center of the large circular ring;

[0014] Two ends of the radial connecting rod are fixedly connected to the large circular ring and the small circular ring respectively.

[0015] Preferably, it also includes a plurality of axial connecting rods;

[0016] The brackets (1) are provided in two numbers and are arranged coaxially;

[0017] The plurality of axial connecting rods are arranged between the two brackets (1) along a direction perpendicular to the radial connecting rods;

[0018] Both ends of the axial connecting rod are fixedly connected to the two brackets (1) respectively.

[0019] Preferably, the foam liquid storage device (2) comprises a foam liquid storage tank with a cylindrical structure;

[0020] One end of the foam liquid storage tank is fixedly connected to the small circular ring of the bracket (1);

[0021] The hook structure is installed on the end surface of the other end of the foam liquid storage tank.

[0022] Preferably, the pneumatic mixer (4) comprises a gas-liquid mixing pump;

[0023] The gas-liquid mixing pump is installed between the large circular ring and the small circular ring of the bracket (1).

[0024] Preferably, the gas storage device (3) comprises a driving gas bottle;

[0025] The driving gas bottle is installed between the large circular ring and the small circular ring of the bracket (1).

[0026] Preferably, the gas-liquid mixing pump and the driving gas bottle are both provided in two numbers;

[0027] The two gas-liquid mixing pumps are respectively connected to the driving gas bottles.

[0028] Preferably, the two driving gas bottles are arranged at two ends of the same diameter of the large ring.

[0029] Preferably, the foam generator (5) is provided in plurality;

[0030] The plurality of foam generators (5) are respectively located at different positions between the large circular ring and the small circular ring of the bracket (1).

[0031] Preferably, the fire extinguishing device further comprises a foam liquid manifold (6);

[0032] The foam liquid collecting pipe (6) is installed on the bracket (1) and is connected with the plurality of foam generators (5) in sequence.

[0033] Compared with the prior art, the beneficial effects of the utility model are:

[0034] The utility model provides an airborne hovering power-driven foam fire extinguishing device, comprising: a bracket, a foam liquid storage device, a gas storage device, a pneumatic mixer, a foam generator, a control valve and a hook structure; the bracket is an annular structure, and the foam liquid storage device is installed in the annular structure; the gas storage device, the pneumatic mixer, the foam generator and the control valve are all installed in the annular structure; the control valve is installed at the outlet of the gas storage device; the pneumatic mixer has a driving gas inlet, a liquid inlet and a gas-liquid mixture outlet, and the pneumatic mixer is driven by the pressurized gas provided by the gas storage device; the gas storage device is communicated with the gas inlet of the pneumatic mixer; the foam liquid storage device is communicated with the liquid inlet of the pneumatic mixer; the gas-liquid mixture outlet of the pneumatic mixer is communicated with the inlet of the foam generator; the hook structure is fixed to the foam liquid storage device or the bracket. The device provided by the utility model controls the opening and closing of the gas storage device and the gas outlet rate through the control valve, adjusts the ratio of the foam liquid and gas output by the pneumatic mixer, thereby adjusting the foam ratio output by the foam generator to achieve the best fire extinguishing effect. At the same time, the hook structure can be connected with the external structure to realize the hoisting of the fire extinguishing device, and the device can be repeatedly filled and used, with high social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the airborne hovering power-driven foam fire extinguishing device of the utility model;

[0036] Figure 2 It is a schematic diagram of the axial structure of the airborne hovering power-driven foam fire extinguishing device of the utility model;

[0037] Figure 3 The utility model is a schematic diagram of the use state of the airborne hovering power-driven foam fire extinguishing device.

[0038] Among them, 1. bracket; 2. foam liquid storage device; 3. gas storage device; 4. pneumatic mixer; 5. foam generator; 6. foam liquid collecting pipe. DETAILED DESCRIPTION

[0039] In order to better understand the present invention, the present invention is further described below with reference to the accompanying drawings and examples.

[0040] The utility model provides an airborne hovering power-driven foam fire extinguishing device, which controls the opening and closing of a gas storage device and the gas outlet rate through a control valve, adjusts the ratio of foam liquid and gas output by a pneumatic mixer, and thus adjusts the foam ratio output by a foam generator to achieve an optimal fire extinguishing effect. At the same time, a hook structure can be connected to an external structure to realize the hoisting of the fire extinguishing device, and the device can be repeatedly filled and used, with high social and economic benefits.

[0041] Example:

[0042] An airborne hovering power-driven foam fire extinguishing device, such as Figure 1 and Figure 2 As shown, it includes: a bracket 1, a foam liquid storage device 2, a gas storage device 3, a pneumatic mixer 4, a foam generator 5, a control valve and a hook structure; the bracket 1 is an annular structure, and the foam liquid storage device 2 is installed in the annular structure; the gas storage device 3, the pneumatic mixer 4, the foam generator 5 and the control valve are all installed in the annular structure; the control valve is installed at the outlet of the gas storage device 3; the pneumatic mixer 4 has a driving gas inlet, a liquid inlet and a gas-liquid mixture outlet, and the pneumatic mixer 4 is driven by the pressurized gas provided by the gas storage device 3; the gas storage device 3 is connected to the gas inlet of the pneumatic mixer 4; the foam liquid storage device 2 is connected to the liquid inlet of the pneumatic mixer 4; the gas-liquid mixture outlet of the pneumatic mixer 4 is connected to the inlet of the foam generator 5; the hook structure is fixed to the foam liquid storage device 2 or the bracket.

[0043] The bracket 1 includes a large circular ring and a small circular ring arranged concentrically and a plurality of radial connecting rods; the plurality of radial connecting rods are arranged between the large circular ring and the small circular ring along the center of the large circular ring; the two ends of the radial connecting rods are respectively fixedly connected to the large circular ring and the small circular ring. The fire extinguishing device also includes a plurality of axial connecting rods; the bracket 1 is provided in two pieces and arranged coaxially; the plurality of axial connecting rods are arranged between the two brackets 1 in a direction perpendicular to the radial connecting rods; the two ends of the axial connecting rods are respectively fixedly connected to the two brackets 1. In order to improve the structural strength of the bracket 1, in this embodiment, the bracket 1 also includes a rectangular structure reinforcement rib, which is installed between the large circular ring and the small circular ring and fixedly connected to the radial connecting rod. In this embodiment, welding is selected as the fixed connection method of the various components of the bracket 1.

[0044] The foam liquid storage device 2 includes a foam liquid storage tank of a cylindrical structure; one end of the foam liquid storage tank is fixedly connected to the small circular ring of the bracket 1; and the hook structure is installed on the end surface of the other end of the foam liquid storage tank. In this embodiment, flanges are provided at the middle and ends of the foam liquid storage tank, and two small circular rings are respectively sleeved on the middle and ends of the foam liquid storage tank with flanges, and the two small circular rings are fixedly connected to the foam liquid storage tank through two flanges. The outlet of the foam liquid storage tank is provided at the end close to the small circular ring, and the inlet is provided at the end away from the small circular ring.

[0045] The pneumatic mixer 4 includes a gas-liquid mixing pump; the gas-liquid mixing pump is installed between the large ring and the small ring of the bracket 1. The gas storage device 3 includes a driving gas bottle; the driving gas bottle is installed between the large ring and the small ring of the bracket 1. There are two gas-liquid mixing pumps and two driving gas bottles; the two gas-liquid mixing pumps are connected to a driving gas bottle respectively. In this embodiment, the gas-liquid mixing pump is installed at the corner of the reinforcing rib of the foam liquid storage tank. The driving gas bottle is set in two groups, which are respectively installed on the large ring of the foam liquid storage tank and close to the position of the gas-liquid mixing pump, and the two driving gas bottles are arranged at both ends of the same diameter of the large ring. The installation method of the gas-liquid mixing pump and the driving gas bottle includes but is not limited to bolt connection.

[0046] There are multiple foam generators 5; the multiple foam generators 5 are respectively located at different positions between the large ring and the small ring of the bracket 1. The fire extinguishing device also includes a foam liquid manifold 6; the foam liquid manifold 6 is installed on the bracket 1 and is connected with the multiple foam generators 5 in sequence. In this embodiment, there are three foam generators 5, two of which are respectively installed at the end corners of the reinforcing ribs located on the foam liquid storage tank, and the other foam generator 5 is installed on the large ring located on the foam liquid storage tank. The foam liquid manifold 6 is an arc-shaped structure, which is installed on the reinforcing ribs located on the foam liquid storage tank. It is connected with the three foam generators 5 and the two gas-liquid mixing pumps for transmitting foam liquid. In this embodiment, the fixed connection method and the installation method include but are not limited to bolt flange connection, welding and one-piece molding, which can achieve the desired effect of this embodiment.

[0047] In this embodiment, the hook structure includes a plurality of hooks, which are movably mounted on the end of the foam liquid storage tank away from the bracket 1 and are used for connecting with an external structure.

[0048] In this embodiment, the gas-liquid mixing pump and the foam liquid storage tank are connected through a PPR pipe as a foam liquid delivery pipe; the driving gas bottle and the gas-liquid mixing pump are connected through a pressure pipeline as a driving gas circuit; the gas-liquid mixing pump and the foam generator 5 are connected through a hose as another foam delivery pipeline.

[0049] The driving gas bottle delivers the decompressed high-pressure gas to the gas-liquid mixing pump through the pressure pipeline. The gas-liquid mixing pump adopts a negative pressure method to suck foam liquid from the foam liquid storage tank. After that, the gas-liquid mixing pump delivers the premixed foam liquid to the foam generator 5 through the hose, and the foam generator 5 generates foam output.

[0050] During the foam generation process, the control switch drives the control valve at the outlet of the gas bottle through a cable. The control valve is mechanical or electric. After receiving the switch command, the control valve is started to open the gas delivery pipeline, and then the decompressed high-pressure gas is converted into foam liquid for output through the gas-liquid mixing pump. The gas-liquid mixing pump generates a flow of 3-4L / s and forms an outlet pressure of 0.15-0.3MPa. This device adopts mechanical and physical operation, with stable and reliable performance, more convenient and humanized replacement and maintenance, practical and reliable structure, high safety factor, and can be repeatedly filled and used, with high social and economic benefits.

[0051] The specific implementation method is:

[0052] like Figure 3 As shown, first, the airborne hovering power-driven foam fire extinguishing device is hoisted by connecting the aircraft and the hook structure; secondly, the fire extinguishing device enters the air above the fire scene, and is located about 20 meters above the fire scene, and flies at a uniform speed parallel to the unburned fire line; then, before flying to the release point, the outlet of the foam liquid storage tank is opened first, and then the control valve on the driving gas bottle is opened, so that the driving gas bottle outputs the required high-pressure gas after decompression; thirdly, the gas and foam liquid inside the gas-liquid mixing pump are pressurized in a reciprocating cycle, pushing the foam liquid to be quickly transported to the foam generator 5, so that the foam generator 5 is directly impacted by the foam liquid and produces a large amount of fine foam to be output downward; finally, the foam forms an insulation layer on the burning object, and at the same time isolates the oxygen required for combustion, achieving an effective fire extinguishing effect. The foam produced by this device lasts longer, and the fire extinguishing protection time at the burning scene is extended.

[0053] Obviously, the described embodiments are only some embodiments of the utility model, but not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0054] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention.

Claims

1. An airborne hovering power-driven foam fire extinguishing device, characterized in that: include: A bracket (1), a foam liquid storage device (2), a gas storage device (3), a pneumatic mixer (4), a foam generator (5), a control valve and a hook structure; The support (1) is an annular structure, and the foam liquid storage device (2) is installed in the annular structure; The gas storage device (3), the pneumatic mixer (4), the foam generator (5) and the control valve are all installed in the annular structure; The control valve is installed at the outlet of the gas storage device (3); The pneumatic mixer (4) has a driving gas inlet, a liquid inlet and a gas-liquid mixture outlet, and the pneumatic mixer (4) is driven by the pressurized gas provided by the gas storage device (3); The gas storage device (3) is in communication with the gas inlet of the pneumatic mixer (4); The foam liquid storage device (2) is in communication with the liquid inlet of the pneumatic mixer (4); The gas-liquid mixture outlet of the pneumatic mixer (4) is in communication with the inlet of the foam generator (5); The hook structure is fixed to the foam liquid storage container (2) or the bracket (1).

2. The airborne hovering power-driven foam fire extinguishing device according to claim 1, characterized in that: The support (1) comprises a large circular ring and a small circular ring which are arranged concentrically and a plurality of radial connecting rods; The plurality of radial connecting rods are arranged between the large circular ring and the small circular ring along the center of the large circular ring; Two ends of the radial connecting rod are fixedly connected to the large circular ring and the small circular ring respectively.

3. The airborne hovering power-driven foam fire extinguishing device according to claim 2, characterized in that: The bracket (1) further comprises a plurality of axial connecting rods; The brackets (1) are provided in two numbers and are arranged coaxially; The plurality of axial connecting rods are arranged between the two brackets (1) along a direction perpendicular to the radial connecting rods; Both ends of the axial connecting rod are fixedly connected to the two brackets (1) respectively.

4. The airborne hovering power-driven foam fire extinguishing device according to claim 2, characterized in that: The foam liquid storage device (2) comprises a foam liquid storage tank with a cylindrical structure; One end of the foam liquid storage tank is fixedly connected to the small circular ring of the bracket (1); The hook structure is installed on the end surface of the other end of the foam liquid storage tank.

5. The airborne hovering power-driven foam fire extinguishing device according to claim 2, characterized in that: The pneumatic mixer (4) comprises a gas-liquid mixing pump; The gas-liquid mixing pump is installed between the large circular ring and the small circular ring of the bracket (1).

6. The airborne hovering power-driven foam fire extinguishing device according to claim 5, characterized in that: The gas storage device (3) comprises a driving gas bottle; The driving gas bottle is installed between the large circular ring and the small circular ring of the bracket (1).

7. The airborne hovering power-driven foam fire extinguishing device according to claim 6, characterized in that: The gas-liquid mixing pump and the driving gas bottle are both provided in two numbers; The two gas-liquid mixing pumps are respectively connected to the driving gas bottles.

8. The airborne hovering power-driven foam fire extinguishing device according to claim 7, characterized in that: The two driving gas bottles are arranged at two ends of the same diameter of the large ring.

9. The airborne hovering power-driven foam fire extinguishing device according to claim 2, characterized in that: The foam generator (5) is provided in plurality; The plurality of foam generators (5) are respectively located at different positions between the large circular ring and the small circular ring of the bracket (1).

10. The airborne hovering power-driven foam fire extinguishing device according to claim 9, characterized in that: The fire extinguishing device also includes a foam liquid manifold (6); The foam liquid collecting pipe (6) is installed on the bracket (1) and is connected with the plurality of foam generators (5) in sequence.

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