A multi-directional underwater explosion protection device

Abstract

The utility model relates to the field of explosion protection discloses a kind of multidirectional underwater explosion protection device.The device includes base and the fence assembly of being fixed on base, base and the fence assembly form the water storage space for simulating underwater explosion environment;The protection device further includes explosion platform for setting explosive in the water storage space;The hollow setting of fence assembly and / or the explosion platform contains the reinforcing structure of non-newtonian fluid.The non-newtonian fluid of hollow setting in the structure of the utility model has unique mechanical properties, its viscosity can rapidly increase when being subjected to explosion impact, can effectively absorb and dissipate the energy generated by explosion, to improve the protection capacity of protection device to explosion impact, reduce the destruction and influence of explosion to surrounding environment and structure, and the durability of structure is stronger.

Description

Technical Field

[0001] This utility model relates to the field of explosion protection, specifically a multi-directional underwater explosion protection device. Background Technology

[0002] Explosives are widely used in underwater blasting engineering and other fields. When studying the underwater explosive performance of explosives, it is necessary to build an experimental site and collect various performance data during the explosion using measuring instruments (such as cameras, pressure sensors, etc.).

[0003] The explosive power of an underwater explosion is six times that of an explosion in air, and the resulting shock wave is also far greater. This larger shock wave not only causes irreversible damage to the underwater explosion test site but also significantly impacts the surrounding environment. Currently, underwater explosion test sites are generally open-air locations with relatively simple protection, typically using only a single layer of steel plates, which offers poor protection against the shock wave. Therefore, there is an urgent need to improve the protective devices for underwater explosions to reduce the noise and shock waves generated by underwater explosions and extend the service life of the test site. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model provides a multi-directional underwater explosion protection device. By improving the device structure and adding a non-Newtonian fluid, the shock wave generated by the explosion can be reduced and consumed during underwater explosion experiments, thus achieving a protective effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a multi-directional underwater explosion protection device, including a base and a fence assembly fixed on the base. The base and the fence assembly form a water storage space for simulating an underwater explosion environment. The protection device also includes an explosion platform disposed in the water storage space for placing explosives. The fence assembly and / or the explosion platform are hollowly provided with a reinforcing structure containing non-Newtonian fluid.

[0007] As a further improvement to the above solution, the fence assembly includes a first fence and a second fence arranged coaxially, and the reinforcing structure is provided in the interlayer between the first fence and the second fence.

[0008] As a further improvement to the above solution, the explosion platform includes the housing and a platform cover plate installed on top of the housing; the reinforcing structure is provided inside the housing.

[0009] As a further improvement to the above solution, the reinforcing structure includes a plastic film and a rigid shell; carbon fiber material mixed into the non-Newtonian fluid is wrapped in the plastic film, and the plastic film is fixed to the inner surface of the rigid shell.

[0010] As a further improvement to the above solution, the outer surface of the rigid shell is coated with a waterproof coating.

[0011] As a further improvement to the above solution, the interlayer is provided with multiple partitions distributed along the circumferential direction, the cross-section of the partitions is wavy, and the reinforcing structure is provided in the gaps between the multiple partitions.

[0012] As a further improvement to the above solution, a plurality of elastic elements are provided between the reinforcing structure inside the housing and the bottom of the housing to provide support.

[0013] As a further improvement to the above solution, the platform cover is fixedly installed on the top of the housing by a limiting mechanism; the limiting mechanism includes multiple limiting rods fixed on the top of the housing; the platform cover has limiting holes corresponding to the limiting rods; the top of the limiting rod passes through the corresponding limiting hole and is fixedly installed with a sealing cap for pressing the platform cover; an anti-aging fluororubber sealing ring is also provided between the platform cover and the housing; wherein, the interior of the interlayer and the housing is filled with inert gas after the reinforcing structure is installed.

[0014] As a further improvement to the above solution, the fence assembly also includes a sealing cap for sealing the top of the interlayer; both the sealing cap and the housing are provided with gas valves.

[0015] As a further improvement to the above solution, the base is an internally inflated rubber cylinder; the first fence is located in the inner circle of the interlayer, and the outer side of the explosion platform is connected to the first fence by at least two iron chains.

[0016] The protective device also includes a waterproof and explosion-proof rod mounted on the sealing cover for installing the explosive detonation wire and / or data acquisition module.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model incorporates a reinforcing structure containing a non-Newtonian fluid in the fence assembly and / or the explosion platform. Non-Newtonian fluids have unique mechanical properties, and their viscosity increases rapidly when subjected to an explosive impact. This effectively absorbs and dissipates the energy generated by the explosion, thereby improving the protective device's ability to withstand explosive impacts, reducing the damage and impact of the explosion on the surrounding environment and structure, and enhancing the structure's durability.

[0019] 2. The fence assembly of this utility model can provide radial protection around the explosion center, and the base can provide axial protection for the bottom of the device, reducing the impact on the ground and thus achieving multi-directional protection. The fence forms multiple layers of protection in the radial direction, enhancing its resistance to blast impact. The reinforcing structure within the interlayer can more effectively absorb the radial impact force generated by the explosion, further improving the overall protective performance of the device.

[0020] 3. The explosion platform of this utility model possesses a certain degree of impact resistance, which can protect the integrity of the platform structure during explosive detonation, prevent damage to the platform due to the explosive impact, and ensure the smooth conduct of the explosion experiment. Simultaneously, the reinforced structure can further absorb the energy generated by the explosion, reducing the impact on other parts within the water storage space. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the multi-directional underwater explosion protection device in the main view direction according to an embodiment of this utility model.

[0022] Figure 2 for Figure 1 A schematic diagram of the central fence assembly and the explosive platform from a top-down view.

[0023] Figure 3 for Figure 1 Enlarged view of the explosion platform.

[0024] In the diagram: 1. Explosion platform; 2. Non-Newtonian fluid; 3A. Limiting rod; 3B. Limiting hole; 4. Sealing cap; 5. Iron chain; 6. First fence; 7. Second fence; 8. Interlayer; 9. Sealing cover; 10. Waterproof and explosion-proof rod; 11. Plastic film; 12. Rigid outer shell; 13. Divider; 14. Base; 15. Fluororubber sealing ring; 16. Gas valve; 17. Elastic component. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1 to 3 This embodiment provides a multi-directional underwater explosion protection device, including a base 14, a fence assembly, and an explosion platform 1.

[0027] A fence assembly is fixed on the base 14. The base 14 and the fence assembly together form a water storage space specifically for simulating an underwater explosion environment. This water storage space provides the necessary simulation environment for underwater explosion tests.

[0028] In this embodiment, the base 14 can be configured as an internally inflated rubber cylinder, which has good elasticity and cushioning performance, can effectively absorb the impact force generated by the explosion, and plays a protective role against vertical shock waves, reducing the impact on the ground.

[0029] The explosion platform 1 is set in the water storage space. Specifically, the explosion platform 1 can be fixed at the center of the upper surface of the base 14. The explosion platform 1 is used to hold explosives.

[0030] In this embodiment, both the fence assembly and the explosion platform 1 are equipped with a reinforcing structure containing a non-Newtonian fluid 2. Of course, in some embodiments, the reinforcing structure can be chosen from either one, depending on the requirements. The non-Newtonian fluid 2 can be configured using existing methods, such as a mixture of mud or coal-water slurry in specific proportions. The non-Newtonian fluid 2 possesses unique mechanical properties; its viscosity increases rapidly upon being subjected to an explosive impact, effectively absorbing and dissipating the energy generated by the explosion. This enhances the protective device's ability to withstand explosive impacts and reduces the damage to the surrounding environment and structures caused by the explosion.

[0031] The reinforcing structure includes a plastic film 11 and a rigid outer shell 12. The non-Newtonian fluid 2, mixed with carbon fiber material, is encased within the plastic film, and the plastic film 11 is fixed to the inner surface of the rigid outer shell 12. Specifically, the non-Newtonian fluid 2 is mixed with the carbon fiber material, and the resulting mixture is encased within the plastic film, which is then firmly fixed to the inner surface of the rigid outer shell 12. The carbon fiber material has a porous structure, which, combined with the properties of the non-Newtonian fluid 2, further absorbs and reduces shock waves. The plastic film 11 effectively prevents leakage of the non-Newtonian fluid 2, ensuring its continued performance. The rigid outer shell 12 provides robust support and protection for the entire reinforcing structure, ensuring it maintains good working condition even under explosive impact.

[0032] In some embodiments, the outer surface of the rigid housing 12 may be coated with a waterproof coating. The waterproof coating serves to prevent water penetration, avoid changes in the properties of the non-Newtonian fluid 2 in the reinforced structure due to water, thereby extending the service life of the reinforced structure and ensuring stable operation of the protective device in a long-term underwater environment.

[0033] The fence assembly includes a first fence 6 and a second fence 7 arranged coaxially, and may also include a sealing cap 9. The reinforcing structure is provided in the interlayer 8 between the first fence 6 and the second fence 7.

[0034] In this embodiment, the interlayer 8 is provided with multiple partitions 13 distributed along the circumferential direction. The cross-section of the partitions 13 is wavy, and the reinforcing structure is disposed in the gaps between the multiple partitions 13. This wavy partition 13 can effectively disperse the explosive impact energy, improve the energy absorption efficiency of the protective device in multiple areas of the fence assembly, and at the same time provide additional support and protection for the reinforcing structure itself, preventing it from shifting or being damaged under strong and cyclic explosive impact.

[0035] The sealing cap 9 is used to seal the top of the interlayer 8, and a gas valve 16 is provided on the sealing cap 9. Inert gas at a certain pressure can be injected into the interlayer 8 through the gas valve 16. On the one hand, when the shock wave is transmitted from the water to the inert gas, its propagation speed is greatly reduced, thereby reducing the damage caused by the shock wave. On the other hand, it reduces the corrosion inside the reinforced structure and the chemical reaction inside the reinforced structure caused by the high temperature generated by the explosion.

[0036] The first fence 6 is located in the inner circle of the interlayer 8. The outer side of the explosion platform 1 is connected to the first fence 6 by at least two iron chains 5. The connection method of the iron chains 5 can effectively constrain the displacement of the explosion platform 1, prevent it from moving significantly under the impact of the explosion, and ensure the safety and controllability of the experiment.

[0037] The protective device also includes a waterproof and blast-resistant rod 10 mounted on the sealing cover 9 for installing the explosive detonator and / or data acquisition module. It protects the explosive detonator from water and explosive impact, ensuring its normal operation, and also provides a stable mounting position for the data acquisition module, guaranteeing accurate data acquisition and transmission during the explosion experiment. In some embodiments, concealed wire holes can be provided in the enclosure assembly, the explosion platform 1, and the base 14, through which the detonator can be connected to the explosive detonator.

[0038] The explosion platform 1 includes the housing and a platform cover plate mounted on top of the housing; the reinforcing structure is provided inside the housing.

[0039] A gas valve 16 (not shown) may also be installed on the housing, similar to the sealing cover 9. Multiple elastic elements 17 are provided between the reinforcing structure inside the housing and the bottom of the housing to provide support. These elastic elements 17 may be springs, which can reduce the direct impact of the reinforcing structure on the bottom of the housing in the event of an explosion, thus protecting the integrity of the housing.

[0040] The platform cover is fixedly installed on the top of the housing by a limiting mechanism; the limiting mechanism includes multiple limiting rods 3A fixed to the top of the housing; the platform cover has limiting holes 3B corresponding to the limiting rods 3A; the top of the limiting rods 3A passes through the corresponding limiting holes 3B and is fixedly installed with a sealing cap 4 for pressing the platform cover. The cooperation of the limiting rods 3A and the limiting holes 3B prevents horizontal relative displacement between the platform cover and the housing, while the sealing cap 4 prevents vertical relative displacement between them.

[0041] An anti-aging fluororubber sealing ring 15 (interference fit) is also provided between the platform cover plate and the shell to prevent water and gas from seeping in from the joint between the two; wherein, after the reinforcement structure is installed, the interior of the shell is also filled with inert gas, the effect of which has been described above and will not be repeated.

[0042] This embodiment provides the process of conducting an underwater explosion experiment using the above-mentioned protective device for aluminum-containing explosives, as follows:

[0043] Before conducting the underwater explosion experiment with aluminum-containing explosives, open the sealing cover 9, release the limiting mechanism on the upper part of the explosion platform 1, remove the fluororubber sealing ring 15, and check whether the modified non-Newtonian fluid 2 with added carbon fiber material, wrapped by the hard shell 12 and high-density plastic film 11 inside the explosion platform 1, is intact. After the inspection, fix the explosion platform 1 using the limiting mechanism, place the test instrument in a suitable position through the preset conduit and sensor kit, adjust the height of the sensor kit so that the sensor and the explosive are on the same horizontal plane, and wait for the water to stabilize. Connect the detonator to the detonation wire and aluminum-containing explosive through the high-strength waterproof and explosion-proof rod 10 above the sealing cover 9. Aluminum explosives are placed in the center of the explosion platform 1. Once everything is set up, the sealing cover 9 is closed, the gas valve 16 is opened, and inert gas is injected into the interlayer 8. After ten minutes, the gas valve 16 is closed. After all this is done, charging and detonation can begin normally. After detonation, the shock wave generated by the explosive detonation absorbs part of the non-Newtonian fluid 2 and inert gas in the vertical direction. After being reduced by the bottom rubber flat cylinder 14, the impact force is greatly weakened. The shock wave propagating radially is continuously weakened by the cylinder composed of iron chain 5, first fence 6, second fence 7, partition 13, and non-Newtonian fluid 2, and the destructive effect on the surrounding environment will be greatly reduced.

[0044] In some embodiments, the above-described protective device can also be used to conduct underwater explosion experiments of shaped charge explosives. It should be noted that when conducting underwater explosion experiments of shaped charge explosives, measuring instruments are not required. Instead, a target plate is suspended in the water by a wire, and the notch of the shaped charge explosive is aligned with the target plate. Other features are the same as the aforementioned implementation process.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-directional underwater explosion protection device, characterized in that, The device includes a base (14) and a fence assembly fixed on the base (14), the base (14) and the fence assembly forming a water storage space for simulating an underwater explosion environment; the protective device also includes an explosion platform (1) disposed in the water storage space for placing explosives; the fence assembly and / or the explosion platform (1) are hollowly provided with a reinforcing structure containing a non-Newtonian fluid (2).

2. The multi-directional underwater explosion protection device according to claim 1, characterized in that, The fence assembly includes a first fence (6) and a second fence (7) arranged coaxially, and the reinforcing structure is provided in the interlayer (8) between the first fence (6) and the second fence (7).

3. A multi-directional underwater explosion protection device according to claim 2, characterized in that, The explosion platform (1) includes a shell and a platform cover plate installed on top of the shell; the reinforcing structure is provided inside the shell.

4. A multi-directional underwater explosion protection device according to any one of claims 1 to 3, characterized in that, The reinforcing structure includes a plastic film (11) and a rigid shell (12); carbon fiber material mixed in with the non-Newtonian fluid (2) is wrapped in the plastic film (11), and the plastic film (11) is fixed to the inner surface of the rigid shell (12).

5. A multi-directional underwater explosion protection device according to claim 4, characterized in that, The outer surface of the rigid shell (12) is coated with a waterproof coating.

6. A multi-directional underwater explosion protection device according to claim 2 or 3, characterized in that, The interlayer (8) is provided with a plurality of partitions (13) distributed along the circumferential direction. The cross-section of the partitions (13) is wavy. The reinforcing structure is provided in the gaps between the partitions (13).

7. A multi-directional underwater explosion protection device according to claim 3, characterized in that, Multiple elastic elements (17) are provided between the reinforcing structure inside the housing and the bottom of the housing to provide support.

8. A multi-directional underwater explosion protection device according to claim 3, characterized in that, The platform cover is fixedly installed on the top of the housing by a limiting mechanism; the limiting mechanism includes multiple limiting rods (3A) fixed on the top of the housing; the platform cover is provided with limiting holes (3B) corresponding to the limiting rods (3A); the top of the limiting rod (3A) passes through the corresponding limiting hole (3B) and is fixedly installed with a sealing cap (4) for pressing the platform cover; an anti-aging fluororubber sealing ring (15) is also provided between the platform cover and the housing; wherein, the interlayer (8) and the interior of the housing are filled with inert gas after the reinforcing structure is installed.

9. A multi-directional underwater explosion protection device according to claim 8, characterized in that, The fence assembly also includes a sealing cap (9) for sealing the top of the interlayer (8); both the sealing cap (9) and the housing are provided with gas valves (16).

10. A multi-directional underwater explosion protection device according to claim 9, characterized in that, The base (14) is an internally inflated rubber cylinder; the first fence (6) is located in the inner ring of the interlayer (8), and the outer side of the explosion platform (1) is connected to the first fence (6) by at least two iron chains (5); The protective device also includes a waterproof and explosion-proof rod (10) mounted on the sealing cover (9) for installing the explosive detonation line and / or data acquisition module.

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