Hydrogen fire extinguishing bomb and fire extinguishing method

Abstract

The hydrogen fire extinguishing bomb comprises an outer shell, a bomb head shell and a direction guider, a hydrogen storage tank is installed in the middle of the outer shell in the axial direction, and a filling cavity defined by the inner wall of the outer shell, the inner wall of the bomb head shell, the outer wall of the hydrogen storage tank and a supporting baffle is filled with fire extinguishing dry powder; a filling pipe is installed in the middle of the bullet shell and communicated with an inner cavity of the hydrogen storage tank, the other end of the filling pipe penetrates through the bullet shell and is provided with a filling connector, and a switch valve is installed on the filling connector. A control circuit board is fixedly mounted at the right end of the inner cavity of the outer shell, a remote control electronic igniter is mounted on the control circuit board, and the ignition end of the remote control electronic igniter is hermetically mounted in the inner cavity of the hydrogen storage tank; the direction guider is installed at the right end of the outer shell. The defects in the prior art are overcome, the fire extinguishing bomb is launched through hydrogen explosion, hydrogen and oxygen are non-toxic and harmless, water is generated after combustion explosion, environmental protection is facilitated, and the effect that hydrogen and oxygen can be filled at any time when being produced and used can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fire fighting and fire extinguishing, in particular to a fire extinguishing bomb, and specifically to a hydrogen fire extinguishing bomb and a fire extinguishing method. Background Art

[0002] Fire is a major killer that endangers people's lives and property. Natural fires or man-made fires are inevitable, and hundreds of thousands of fires occur around the world every year.

[0003] In the prior art, in order to protect the personal safety of firefighters, fire extinguishing launchers and fire extinguishing bombs are used in some occasions to extinguish fires. Fire extinguishing bombs play a vital role in the process of fire extinguishing. Fire extinguishing materials are loaded into warheads and fired into the fire scene in the form of mortars or bazookas, which can fully protect the personal safety of firefighters.

[0004] The fire extinguishing bombs in the prior art are simple in design, have a single fire extinguishing effect, are not obvious in fire extinguishing effect, and have low efficiency. Initiators are used as explosion power, but in daily use, initiators have the hidden dangers of difficult management and storage of explosives. In addition, initiators will produce polluted gases after explosion, which is easy to cause harm to the natural environment and has poor environmental protection effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a hydrogen fire extinguishing bomb and a fire extinguishing method, which overcome the deficiencies in the prior art and have a reasonable design. Hydrogen explosion is used to launch fire extinguishing bombs. Since hydrogen and oxygen are non-toxic and harmless, water is generated after combustion and explosion, which is beneficial to environmental protection. In addition, hydrogen and oxygen can be produced, used and charged at the same time.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A hydrogen fire extinguishing bomb, comprising an outer shell, a warhead shell and a direction guide, wherein the warhead shell is fixedly mounted on the left end of the outer shell, a hydrogen storage tank is axially mounted in the middle of the outer shell, the right end of the hydrogen storage tank is fixedly mounted on a support baffle, the support baffle is fixedly mounted in the inner cavity of the outer shell, a filling cavity is formed between the inner wall of the outer shell, the inner wall of the warhead shell, the outer wall of the hydrogen storage tank and the support baffle, and the filling cavity is filled with fire extinguishing dry powder;

[0008] A filling pipe is fixedly installed in the middle of the warhead shell, one end of which is connected to the inner cavity of the hydrogen storage tank, and the other end of the filling pipe passes through the warhead shell and is installed with a filling connector, and a switch valve is installed on the filling connector; a control circuit board is fixedly installed at the right end of the inner cavity of the outer shell, and a remote-controlled electronic igniter is installed on the control circuit board. The remote-controlled electronic igniter is electrically connected to the control circuit board, and the ignition end of the remote-controlled electronic igniter passes through a supporting baffle and is sealed in the inner cavity of the hydrogen storage tank; the direction guide is installed at the right end of the outer shell.

[0009] Preferably, the bullet shell includes a conical shell and a threaded joint, the threaded joint is fixedly connected to the right end of the conical shell, the threaded joint and the conical shell are an integrated structure, the left end of the inner wall of the outer shell is provided with an internal thread, and the threaded joint is threadedly connected with the internal thread.

[0010] Preferably, the direction guide includes a connecting shaft, a fixed plate and a vane wheel, one end of the connecting shaft is fixedly mounted on the fixed plate, the fixed plate is fixedly mounted in the inner cavity of the outer shell, and the vane wheel is rotatably connected to the other end of the connecting shaft through a bearing seat; a closing plate is provided at the right end of the outer shell, and the connecting shaft passes through the closing plate and is fixedly connected to the closing plate.

[0011] The present invention also discloses a fire extinguishing method using the hydrogen fire extinguishing bomb, comprising the following steps:

[0012] Step S1: using ordinary fresh water to pass through a hydrogen and oxygen generator using electric energy oscillation separation technology to generate hydrogen and oxygen;

[0013] Step S2: first evacuate the hydrogen storage tank, and then fill the hydrogen and oxygen generated in step S1 into the hydrogen storage tank through the filling joint of the filling pipe via the booster pump and the filling gun;

[0014] Step S3: After the filling is completed, the hydrogen storage tank is sealed, and then the fire extinguishing bomb is ejected to a low altitude position at the fire scene;

[0015] Step S4: Ignite the remote-controlled electronic igniter through remote control to ignite and detonate the hydrogen-oxygen mixed gas in the hydrogen storage tank; the huge explosive force generated by the explosion causes the fire extinguishing dry powder to break through the outer shell and be released into the fire scene to isolate the air and extinguish the fire.

[0016] Preferably, in step S1, after hydrogen and oxygen are generated, they are firstly subjected to pressure-regulated drying treatment to be converted into dry gas with stable pressure, and then input into a buffer tank for storage by a compressor.

[0017] Preferably, in step S2, when hydrogen and oxygen are added to the inner cavity of the hydrogen storage tank, low-pressure filling is adopted, and the filling pressure is less than or equal to 0.35 MPa.

[0018] The present invention provides a hydrogen fire extinguishing bomb and a fire extinguishing method. The invention has the following beneficial effects: hydrogen explosion is used to launch fire extinguishing bombs, and since hydrogen and oxygen are non-toxic and harmless, water is generated after combustion and explosion, which is beneficial to environmental protection; in addition, hydrogen and oxygen can be charged as they are produced, used and charged, and have the characteristics of safety, energy saving and environmental protection, which makes up for the hidden dangers of using explosives and flame retardants to extinguish fires, and the difficulty in explosive management and storage, improves the safety quality of the launch vehicle and the launch, and also achieves energy saving and environmental protection, no air pollution, and can save a lot of fire extinguishing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings required for describing the prior art are briefly introduced below.

[0020] Figure 1 It is a structural schematic diagram of the hydrogen fire extinguishing bomb of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the warhead shell in the hydrogen fire extinguishing bomb of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the central guide of the hydrogen fire extinguishing bomb of the present invention;

[0023] Figure 4 is a flow chart of the steps of the fire extinguishing method of the present invention;

[0024] Description of the numbers in the figure:

[0025] 1. Outer shell; 2. Warhead shell; 3. Direction guide; 4. Hydrogen storage tank; 5. Support baffle; 6. Fire extinguishing dry powder; 7. Filling pipe; 8. Filling connector; 9. Control circuit board; 10. Remote control electronic igniter; 11. Closing plate; 21. Conical shell; 22. Threaded connector; 31. Connecting shaft; 32. Fixing plate; 33. Wing wheel. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0027] Embodiment 1, as Figure 1-3 As shown, a hydrogen fire extinguishing bomb comprises an outer shell 1, a warhead shell 2 and a direction guide 3, the warhead shell 2 is fixedly mounted on the left end of the outer shell 1, a hydrogen storage tank 4 is axially mounted in the middle of the outer shell 1, the right end of the hydrogen storage tank 4 is fixedly mounted on a support baffle 5, the support baffle 5 is fixedly mounted in the inner cavity of the outer shell 1, and a filling cavity is formed between the inner wall of the outer shell 1, the inner wall of the warhead shell 2, the outer wall of the hydrogen storage tank 4 and the support baffle 5, and the filling cavity is filled with fire extinguishing dry powder 6;

[0028] A filling pipe 7 is fixedly installed in the middle of the warhead shell 2, one end of the filling pipe 7 is connected to the inner cavity of the hydrogen storage tank 4, the other end of the filling pipe 7 passes through the warhead shell 2 and is installed with a filling connector 8, and a switch valve is installed on the filling connector 8; a control circuit board 9 is fixedly installed at the right end of the inner cavity of the outer shell 1, a remote control electronic igniter 10 is installed on the control circuit board 9, the remote control electronic igniter 10 is electrically connected to the control circuit board 9, and the ignition end of the remote control electronic igniter 10 passes through the supporting baffle 5 and is sealed in the inner cavity of the hydrogen storage tank 4; the direction guide 3 is installed at the right end of the outer shell 1.

[0029] Working principle:

[0030] Before use, the hydrogen storage tank 4 can be evacuated through the filling pipe 7, and then a certain amount of hydrogen and oxygen can be added to the hydrogen storage tank 4. After the filling is completed, the switch valve at the end of the filling pipe 7 can be closed to seal the hydrogen storage tank 4 to prevent leakage; then the entire hydrogen fire extinguishing bomb is launched to a low-altitude position at the fire scene through the liquid nitrogen power launch technology or electromagnetic catapult technology in the prior art. In this process, the direction guide 3 at the tail of the outer shell 1 can ensure the stability of the entire hydrogen fire extinguishing bomb during the launch flight; when it reaches the designated position, the ignition point of the remote control electronic igniter 10 is remotely controlled by the control system for ignition. In this embodiment, the control system can calculate the ignition time of the hydrogen fire extinguishing bomb through the ballistic information of the hydrogen fire extinguishing bomb, and send the ignition time signal and the power supply signal of the fire extinguishing bomb to the control circuit board 9; the control After receiving the external power supply signal, the circuit board 9 controls the remote control electronic igniter 10 to ignite; thereby detonating the hydrogen-oxygen mixed gas in the hydrogen storage tank 4, and then through the huge explosive force generated by the explosion, the outer shell 1 with the fire extinguishing dry powder 6 is detonated, so that the fire extinguishing dry powder 6 can be sprayed in all directions at the fire scene, and the spraying range is larger than that of the existing fire extinguishing bombs, so as to play a role of covering a large area and isolating the air, thereby improving the fire extinguishing effect; and because hydrogen and oxygen are non-toxic and harmless, and water is generated after combustion and explosion, it is beneficial to environmental protection; in addition, in this embodiment, hydrogen and oxygen can be charged as they are produced, used, and charged, and have the characteristics of safety, energy saving, and environmental protection, which makes up for the hidden dangers of using explosives and flame retardants to extinguish fires, and the difficulty of explosive management and storage, improves the safety quality of the launch vehicle and the launch, and improves the electronic automation of the launch system and the automatic control of hydrogen filling. At the same time, it also achieves energy saving and environmental protection, has no air pollution, can save a lot of fire extinguishing costs, and has a wide range of uses. The control system and remote control ignition technology all adopt the known technical solutions in the prior art.

[0031] Embodiment 2, as a further preferred solution of embodiment 1, the warhead shell 2 includes a conical shell 21 and a threaded joint 22, the threaded joint 22 is fixedly connected to the right end of the conical shell 21, the threaded joint 22 and the conical shell 21 are set as an integrated structure, the left end of the inner wall of the outer shell 1 is provided with an internal thread, and the threaded joint 22 is threadedly connected with the internal thread. By setting the main body of the warhead shell 2 as the conical shell 21 structure, the resistance when the entire hydrogen fire extinguishing bomb is launched to the designated position can be effectively overcome. In addition, the warhead shell 2 and the outer shell 1 are connected by the threaded joint 22 and the internal thread, so that the warhead shell 2 and the outer shell 1 can be quickly assembled.

[0032] Embodiment 3, as a further preferred solution of embodiment 1, the direction guide 3 comprises a connecting shaft 31, a fixing plate 32 and a vane wheel 33, one end of the connecting shaft 31 is fixedly mounted on the fixing plate 32, the fixing plate 32 is fixedly mounted in the inner cavity of the outer shell 1, and the vane wheel 33 is rotatably connected to the other end of the connecting shaft 31 through a bearing seat; a closing plate 11 is provided at the right end of the outer shell 1, and the connecting shaft 31 passes through the closing plate 11 and is fixedly connected to the closing plate 11. The vane wheel 33 adopts a method of folding multiple curling vanes transversely to realize a small damping rotation around the projectile axis to achieve the de-rotation effect of the whole projectile.

[0033] Embodiment 4

[0034] like Figure 4 As shown, the present invention also discloses a fire extinguishing method using the above hydrogen fire extinguishing bomb, comprising the following steps:

[0035] Step S1: using ordinary fresh water to generate hydrogen and oxygen through a hydrogen-oxygen generator using electric energy oscillation separation technology; and converting the generated hydrogen and oxygen into dry gas with stable pressure after pressure regulation and drying, and then using a compressor to input into a buffer tank for storage;

[0036] Step S2: first evacuate the hydrogen storage tank, and then fill the hydrogen and oxygen generated in step S1 into the hydrogen storage tank through the filling joint of the filling pipe via the booster pump and the filling gun; during the filling process, low-pressure filling is adopted, and the filling pressure is less than or equal to 0.35 MPa.

[0037] Step S3: After the filling is completed, the hydrogen storage tank is sealed, and then the fire extinguishing bomb is ejected to a low altitude position at the fire scene;

[0038] Step S4: Ignite the remote-controlled electronic igniter through remote control to ignite and detonate the hydrogen-oxygen mixed gas in the hydrogen storage tank; the huge explosive force generated by the explosion causes the fire extinguishing dry powder to break through the outer shell and be released into the fire scene to isolate the air and extinguish the fire.

[0039] Through the above steps, according to the technical requirements of fire extinguishing bomb application, hydrogen and oxygen can be charged on site as they are produced, used and used, thereby effectively making up for the hidden dangers of using explosives and flame retardants to extinguish fires, and the difficulty in managing and storing explosives, and improving the safety quality of the launch vehicle and launch. In addition, by utilizing the huge power of hydrogen to launch fire extinguishing bombs, it has the good effect of convenient, fast and safe fire extinguishing, and also achieves energy saving and environmental protection, no air pollution, can save a lot of fire extinguishing costs, and has a wide range of uses.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydrogen fire extinguishing bomb, characterized in that: The invention comprises an outer shell (1), a warhead shell (2) and a direction guide (3), wherein the warhead shell (2) is fixedly mounted on the left end of the outer shell (1), a hydrogen storage tank (4) is axially mounted in the middle of the outer shell (1), the right end of the hydrogen storage tank (4) is fixedly mounted on a support baffle (5), the support baffle (5) is fixedly mounted in the inner cavity of the outer shell (1), a filling cavity is formed between the inner wall of the outer shell (1), the inner wall of the warhead shell (2), the outer wall of the hydrogen storage tank (4) and the support baffle (5), and the filling cavity is filled with fire extinguishing dry powder (6); a filling pipe (7) is fixedly mounted in the middle of the warhead shell (2), and the filling pipe (7) is fixedly mounted on the inner wall of the outer shell (1), and the filling pipe (7) is fixedly mounted on the inner wall of the outer shell (1), and the filling cavity is filled with fire extinguishing dry powder (6). One end of the filling pipe (7) is in communication with the inner cavity of the hydrogen storage tank (4); the other end of the filling pipe (7) passes through the warhead shell (2) and is provided with a filling connector (8); the filling connector (8) is provided with a switch valve; a control circuit board (9) is fixedly provided at the right end of the inner cavity of the outer shell (1); a remote control electronic igniter (10) is provided on the control circuit board (9); the remote control electronic igniter (10) is electrically connected to the control circuit board (9); the ignition end of the remote control electronic igniter (10) passes through the supporting baffle (5) and is sealed and installed in the inner cavity of the hydrogen storage tank (4); the direction guide (3) is installed at the right end of the outer shell (1).

2. A hydrogen fire extinguishing bomb according to claim 1, characterized in that: The bullet shell (2) comprises a conical shell (21) and a threaded joint (22), wherein the threaded joint (22) is fixedly connected to the right end of the conical shell (21), and the threaded joint (22) and the conical shell (21) are arranged as an integral structure, and the left end of the inner wall of the outer shell (1) is provided with an internal thread, and the threaded joint (22) is threadedly connected in cooperation with the internal thread.

3. A hydrogen fire extinguishing bomb according to claim 1, characterized in that: The direction guide (3) comprises a connecting shaft (31), a fixing plate (32) and a vane wheel (33); one end of the connecting shaft (31) is fixedly mounted on the fixing plate (32); the fixing plate (32) is fixedly mounted in the inner cavity of the outer shell (1); the vane wheel (33) is rotatably connected to the other end of the connecting shaft (31) via a bearing seat; a closing plate (11) is provided at the right end of the outer shell (1); the connecting shaft (31) passes through the closing plate (11) and is fixedly connected to the closing plate (11).

4. A fire extinguishing method using the hydrogen fire extinguishing bomb according to any one of claims 1 to 3, characterized in that: The following steps are involved: Step S1: using ordinary fresh water to generate hydrogen and oxygen through a hydrogen and oxygen generator using electric energy oscillation separation technology; Step S2: first evacuate the hydrogen storage tank, and then fill the hydrogen and oxygen generated in step S1 into the hydrogen storage tank through the filling joint of the filling pipe via the booster pump and the filling gun; Step S3: After the filling is completed, the hydrogen storage tank is sealed, and then the fire extinguishing bomb is ejected to a low altitude position at the fire scene; Step S4: Ignite the remote-controlled electronic igniter through remote control to ignite and detonate the hydrogen-oxygen mixed gas in the hydrogen storage tank; the huge explosive force generated by the explosion causes the fire extinguishing dry powder to break through the outer shell and be released into the fire scene to isolate the air and extinguish the fire.

5. The fire extinguishing method according to claim 4, characterized in that: In the step S1, after hydrogen and oxygen are generated, they are firstly subjected to pressure-regulated drying treatment and then converted into dry gas with stable pressure, which is then input into a buffer tank for storage by a compressor.

6. The fire extinguishing method according to claim 4, characterized in that: In the step S2, when hydrogen and oxygen are added to the inner cavity of the hydrogen storage tank, low-pressure filling is adopted, and the filling pressure is less than or equal to 0.35 MPa.

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