Bubble curtain protection device

Abstract

The utility model provides a bubble curtain protection device. The bubble curtain protection device comprises a shell, a connecting pipe, a pipeline, a bubble injection pipe, a pressure gauge and a supercharging device, liquid gas is filled in an inner cavity of the shell, a battery pack is arranged in a bottom plate of the shell, a resistance wire is arranged in the inner cavity of the shell, two ends of the resistance wire are connected with two electrodes of the battery pack, one end of a connecting pipe is connected with the shell, the other end of the connecting pipe is connected with a pipeline, the other end of the pipeline is connected with a bubble injection pipe, and a valve B is arranged on the pipeline. The pipeline between the shell and the valve B is connected with the supercharging device through a valve A, and the pipeline between the bubble injection pipe and the valve B is connected with the supercharging device through a valve C. According to the utility model, the battery pack embedded in the shell is used for supplying power, high-pressure gas can be generated without an air compressor or increasing a gas guide pipe, the pressure of the gas can be increased through the supercharging device, and the cost is greatly reduced and the operation difficulty is effectively reduced while the effective generation of a bubble curtain is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic blasting, in particular to a bubble curtain protection device. Background Art

[0002] With technological advancements and the development of global ocean resources, the application prospects of underwater blasting technology are becoming increasingly broad. Water is less compressible than air. Therefore, the shock waves caused by underwater blasting have faster propagation speed and greater destructive power, which can cause serious damage to surrounding buildings, structures, and the ecological environment.

[0003] Bubble curtain is a relatively effective underwater blast wave protection technology. Its working principle is to form a layer of bubble wall in the water, and use the density difference between bubbles and water and the elastic characteristics of the bubbles themselves to make the shock wave undergo multiple reflections and refractions during the propagation process, thereby significantly reducing the energy propagation of the shock wave.

[0004] Bubble curtains have broad application prospects, particularly in military defense, marine engineering, and environmental protection. In the military, bubble curtains can be used to protect ships and marine facilities, mitigating the threat of underwater explosions. In marine engineering, bubble curtains can serve as an effective defense against critical structures such as submarine pipelines and platforms. In environmental protection, bubble curtains can help mitigate the impact of underwater explosions on the ecological environment and maintain biodiversity in waters.

[0005] Existing bubble curtain protection devices use an air compressor to pump air into an underwater steel pipe through an air duct. Air then overflows through air holes in the pipe to form a bubble curtain, which blocks the shockwaves of underwater explosions. In deep water, existing bubble curtain systems require significantly increased compressor power and significantly longer air ducts, significantly increasing costs and operating complexity, while also limiting the effectiveness of bubble curtain generation.

[0006] Therefore, the inventors proposed this application to solve the above problems. Utility Model Content

[0007] The utility model provides a bubble curtain protection device to solve the problems raised in the above background technology that the bubble curtain generation effect is limited, the cost is greatly increased, and the operation difficulty is increased in deep water.

[0008] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0009] The utility model first provides a bubble curtain protection device, comprising a shell, a connecting pipe, a pipeline, a bubble injection pipe, a pressure gauge and a pressurizing device;

[0010] The inner cavity of the shell is filled with liquid gas, a battery pack is arranged in the bottom plate of the shell, and a resistance wire is arranged in the inner cavity of the shell. The two ends of the resistance wire are connected to the two poles of the battery pack, one end of the connecting pipe is connected to the shell, the other end of the connecting pipe is connected to the pipeline, and the other end of the pipeline is connected to the bubble injection pipe. A valve B is provided on the pipeline, the pipeline between the shell and the valve B is connected to the boosting device through the valve A, and the pipeline between the bubble injection pipe and the valve B is connected to the boosting device through the valve C. The channel from the boosting device to the inner cavity of the shell is opened or closed by the valve A, and the channel from the boosting device to the bubble injection pipe is opened or closed by the valve C. The pressure gauge is arranged on the connecting pipe.

[0011] In a specific embodiment, the liquid gas is liquid carbon dioxide.

[0012] In a specific embodiment, the valve A, valve B and valve C are all stop valves.

[0013] In a specific embodiment, the bubble injection tube is cylindrical, one end of the bubble injection tube is threadedly connected to the pipeline, the other end of the bubble injection tube is closed, and a plurality of emission holes are evenly arranged on the bubble injection tube.

[0014] In a specific embodiment, the shape of each emission hole is circular, the aperture of each emission hole is 2 to 4 mm, and the interval between the emission holes is 30 to 50 mm.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model supplies power to the resistance wire through a battery pack. The resistance wire generates heat after being energized, and the liquid gas is gasified. The gas enters the gas injection pipe through the connecting pipe and the pipeline in sequence, forming a bubble curtain. The gas pressure can be measured by a pressure gauge. If the pressure is insufficient and the bubble curtain effect is poor, the valve is used to control the opening or closing of the channel so that the gas enters the gas injection pipe after passing through the booster device, forming a high-quality bubble curtain, which can effectively block the blast shock wave.

[0017] 2. The utility model adopts a battery pack embedded in the shell for power supply. No air compressor is required to generate high-pressure gas, and no air duct is required to be extended. In deep water, the gas pressure can be increased by a booster device. Compared with the existing technology, while ensuring the effective generation of the bubble curtain, its cost is greatly reduced and its operation difficulty is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the utility model.

[0019] Reference numerals: housing 1 , liquid gas 2 , bubble injection tube 3 , connecting tube 4 , pressure gauge 5 , valve B6 , valve C7 , valve A8 , boosting device 9 , pipeline 10 , resistance wire 11 , battery pack 12 . DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the embodiments. It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of the present invention may be combined with each other.

[0021] See also Figure 1 The utility model provides a bubble curtain protection device, comprising a shell 1, a connecting pipe 4, a pipeline 10, a bubble injection pipe 3, a pressure gauge 5 and a booster device 9. The shell 1 is hollow cylindrical with a diameter ranging from 30 to 50 cm and a height ranging from 30 to 100 cm.

[0022] The inner cavity of the shell 1 is filled with liquid gas 2. Optionally, the liquid gas 2 is liquid carbon dioxide. A battery pack 12 is provided in the bottom plate of the shell 1. A resistance wire 11 is provided in the inner cavity of the shell 1. The two ends of the resistance wire 11 are connected to the two poles of the battery pack 12. The battery pack 12 supplies power to the resistance wire 11. The resistance wire 11 generates heat after being energized. The heating of the resistance wire 11 helps the liquid gas 2 to gasify. One end of the connecting pipe 4 is connected to the shell 1, and the other end of the connecting pipe 4 is connected to the pipeline 10. Preferably, both ends of the connecting pipe 4 are provided with external threads, and the two ends of the connecting pipe 4 are respectively threadedly connected to the gas transmission channel 10 and the shell 1. A sealing ring is provided between the end face of the shell 1 and the connecting pipe 4. The other end of the pipeline 10 is threadedly connected to the bubble injection pipe 3. The connection is equipped with a sealing ring. A valve B6 is provided on the pipeline 10. The pipeline 10 between the shell 1 and the valve B6 is connected to the boosting device 9 through the valve A8. The bubble injection The pipeline 10 between the tube 3 and the valve B6 is connected to the boosting device 9 through the valve C7. Optionally, the valves A8, B6 and C7 are all stop valves. The passage from the boosting device 9 to the inner cavity of the shell 1 is opened or closed by the valve A8, and the passage from the boosting device 9 to the bubble injection tube 3 is opened or closed by the valve C7. When the valve B6 is opened, the valves A8 and C7 are closed. After the gas is emitted from the inner cavity of the shell 1, it passes through the connecting pipe 4, the pipeline 10, and the bubble injection tube 3 in sequence to form a bubble curtain. When the gas pressure is insufficient and the bubble curtain effect is poor, the valve B6 is closed, and the valves A8 and C7 are opened. The gas enters the boosting device 9 from the valve A8 for boosting, and then comes out from the valve C7 and passes through the pipeline 10 and the bubble injection tube 3 in sequence to form a bubble curtain. The pressure gauge 5 is provided on the connecting pipe 4. The pressure gauge 5 is used to monitor the gas pressure and issue an early warning of abnormal pressure.

[0023] Preferably, all joints are provided with sealing rings, which are hollow rings made of rubber, silicone or polyurethane.

[0024] Optionally, the bubble injection tube 3 is cylindrical, one end of the bubble injection tube 3 is threadedly connected to the pipeline 10, and the other end of the bubble injection tube 3 is closed. A plurality of emission holes are evenly arranged on the bubble injection tube 3.

[0025] Preferably, the shape of each emitting hole is circular, the emitting hole pitch is 30 to 50 mm, and the emitting hole diameter is 2 to 4 mm.

[0026] Before use, first, select the appropriate shell 1 size and bubble injection tube 3 according to the requirements of the underwater blasting mission, fill the inner cavity of the shell 1 with liquid gas 2, and check whether valve A8, valve B6, valve C7 and pressure gauge 5 meet the requirements; then, evaluate the performance of the bubble curtain protection device to ensure reliability and safety.

[0027] When in use, place the bubble curtain protection device in the water area that needs protection, with the emission hole of the bubble injection tube 3 facing upwards. Open valve B6 before blasting, and adjust the bubble output rate through valve B6 and pressure gauge 5. When the bubble generation quality is poor, close valve B6, open valve A8 and valve C7, start the booster device 9, and after the bubble curtain generation is stable, evacuate the personnel and the arrangement is completed.

[0028] The utility model solves the limitations of traditional air compressor power and excessively long air ducts, and at the same time adds a booster device, which solves the problem of poor quality of bubbles generated by the bubble curtain generating device. The bubble curtain can be arranged quickly, flexibly and with high quality to effectively block the blast shock wave.

[0029] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, several simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.

Claims

1. A bubble curtain protection device, characterized in that: It comprises a housing (1), a connecting pipe (4), a pipeline (10), a bubble jetting pipe (3), a pressure gauge (5) and a pressure boosting device (9); The inner cavity of the shell (1) is filled with liquid gas (2), the bottom plate of the shell (1) is provided with a battery pack (12), the inner cavity of the shell (1) is provided with a resistance wire (11), the two ends of the resistance wire (11) are connected to the two poles of the battery pack (12), one end of the connecting pipe (4) is connected to the shell (1), the other end of the connecting pipe (4) is connected to the pipeline (10), the other end of the pipeline (10) is connected to the bubble injection pipe (3), the pipeline (10) is provided with a valve B (6), the shell (1 ) and valve B (6) are connected to the boosting device (9) through valve A (8), the pipe (10) between the bubble injection pipe (3) and valve B (6) is connected to the boosting device (9) through valve C (7), the passage from the boosting device (9) to the inner cavity of the shell (1) is opened or closed through valve A (8), and the passage from the boosting device (9) to the bubble injection pipe (3) is opened or closed through valve C (7), and the pressure gauge (5) is arranged on the connecting pipe (4).

2. The bubble curtain protection device according to claim 1, characterized in that: The liquid gas (2) is liquid carbon dioxide.

3. The bubble curtain protection device according to claim 1, characterized in that: The valve A (8), valve B (6) and valve C (7) are all stop valves.

4. The bubble curtain protection device according to claim 1, characterized in that: The bubble jet tube (3) is cylindrical, one end of the bubble jet tube (3) is threadedly connected to the pipeline (10), the other end of the bubble jet tube (3) is closed, and a plurality of emission holes are evenly arranged on the bubble jet tube.

5. The bubble curtain protection device according to claim 4, characterized in that: The shape of each launch hole is circular, the launch hole pitch is 30 to 50 mm, and the launch hole diameter is 2 to 4 mm.

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