A gas gun device for underwater continuous high-pressure gas ice breaking experiment

Abstract

The application belongs to the technical field of ice breaking, and particularly relates to a gas gun device for underwater continuous high-pressure gas ice breaking experiment. The application can adjust the frequency of high-pressure gas bubble output by adjusting the input power frequency of an external power source to control the frequency of the propelling head impacting the connecting rod compressing the blocking spring, and can control the volume of output gas by controlling the distance of the blocking device compressing the blocking spring to realize quantitative and fixed-frequency continuous output. The application can change the volume of the compressed gas blocking chamber by adjusting the interlayer, and can realize quantitative control of the single release of compressed gas by releasing all the gas in the compressed gas blocking chamber during single experiment.

Description

Technical Field

[0001] This invention belongs to the field of ice-breaking technology, specifically relating to a gas gun device for underwater continuous high-pressure gas ice-breaking experiments. Background Technology

[0002] With the development of Arctic shipping routes and resources, icebreaking technology has become an urgent research issue. Traditional icebreaking methods rely on the ship's structural strength to directly collide with the ice, using its own power and weight to crush the ice. This method is inefficient and prone to damaging the ship. Continuous high-pressure gas icebreaking is a different approach. Its principle involves continuously injecting high-pressure gas beneath the ice layer, causing it to rapidly diffuse and release energy in the water, generating an explosive effect that creates shock waves and cavitation jets, resulting in continuous damage to the ice. This icebreaking method offers significant advantages, improving the economics of shipping, saving energy, and mitigating the effects of the greenhouse effect.

[0003] By conducting experiments on the continuous high-pressure gas icebreaking mechanism, we can study the fluid-structure interaction problem in this process and obtain reasonable pressure load and ice layer damage mode. This study has important engineering application significance and scientific theoretical value for improving the structural design level and navigation safety of icebreakers.

[0004] In high-pressure gas ice-breaking experiments, the stable control, quantitative release, and continuous release of the high-pressure gas source are crucial. Among known experimental technologies for generating pneumatic pulse devices, patent application number 201910228272.X, "An air gun device for underwater high-pressure gas ice-breaking experiments," connects an electromagnetic piston and a sealing piston via a transmission rod. The sealing piston achieves sealing through the pressure difference between the high-pressure cylinder and the external environment. Because the two pistons, made of different materials, are connected by a transmission rod, the device requires high precision in manufacturing, is difficult to manufacture, and has a cumbersome installation process. Patent application number "201811169354.3," an electromagnetically controlled underwater high-pressure bubble source device, uses an electromagnet to control a lever structure, generating underwater pneumatic pulses under the action of a spring. However, this device does not consider the need for repeated experiments, requiring manual reassembly after each experiment. Furthermore, the lever latch design makes the entire device complex, with low stability, unsuitable for long-term, large-scale comparative experiments.

[0005] In existing underwater high-pressure gas experimental technologies, patent applications 201910228272.X ("A gas gun device for underwater high-pressure gas ice-breaking experiments") and 202110461437.5 ("A drive system for underwater ice breaking of high-speed rotating bodies") are also high-pressure bubble ice-breaking devices, but they can only generate a single high-pressure gas gun bubble and cannot generate high-pressure bubbles quantitatively and at a constant frequency, thus limiting their ice-breaking capabilities. Existing gas ice-breaking experimental devices have many shortcomings:

[0006] (1) The high-pressure bubbles generated by the air gun are single bubbles, which affects the ice-breaking effect.

[0007] (2) The mechanism is complex, and most of them require lever mechanical mechanisms or multiple solenoid valves to work at the same time, which requires high control precision.

[0008] (3) The inability to generate bubbles quantitatively and at a constant frequency affects the accuracy and efficiency of the experiment. Summary of the Invention

[0009] The purpose of this invention is to provide a gas gun device for underwater continuous high-pressure gas ice-breaking experiments.

[0010] A gas gun device for underwater continuous high-pressure gas ice-breaking experiments includes a propulsion head, a gun body shell, a muzzle, and a stopper. The internal space of the gun body shell consists of a left-side propulsion pipe, a central muzzle channel, and a right-side compressed gas channel. The muzzle is located at the upper end of the muzzle channel. The compressed gas channel has an internal interlayer with a vent in the middle, dividing the compressed gas channel into a left-side compressed gas inlet chamber and a pressure-stabilized compressed gas chamber. The pressure-stabilized compressed gas chamber is connected to an external pressure-stabilized gas source through an inlet. The propulsion head is disposed inside the propulsion pipe and slides in a sealed manner with the wall of the propulsion pipe. The left end of the propulsion head is connected to an external power source through a propulsion shaft. Shock-absorbing springs are provided on both the left and right end faces of the propulsion pipe. The stopper is mounted on a connecting rod and arranged in the compressed gas inlet chamber. The right end of the stopper is connected to the interlayer through an inlet spring. The left end of the connecting rod extends into the propulsion pipe, and the size of the connecting rod is adapted to the vent of the interlayer, allowing the connecting rod to extend into and seal the vent of the interlayer.

[0011] Furthermore, the position of the interlayer in the compressed gas channel is adjustable. By adjusting the interlayer, the volume of compressed gas entering the resistance chamber is changed, thereby achieving a single quantitative output of the air gun device.

[0012] Furthermore, the propulsion head is provided with a first limiter, which cooperates with a second limiter installed at a corresponding position on the wall of the propulsion pipe to prevent the propulsion head from excessive impact.

[0013] Furthermore, when using the air gun device, the external power source is adjusted according to the preset output air volume and bubble frequency to control the propulsion distance and frequency of the propulsion head; the external pressure-stabilized gas source is turned on to fill the compressed gas channel with high-pressure gas; after the external power source is turned on, the propulsion head strikes the connecting rod, which in turn pushes the stopper to compress the inlet spring. At the same time, the right end of the connecting rod extends into and seals the air vent of the interlayer, realizing the quantitative output of high-pressure gas; after the high-pressure gas is output, the stopper is rebounded by the inlet spring, and the stopper separates the compressed gas inlet chamber from the muzzle channel; the external power source continues to input according to the set frequency, entering a new cycle, realizing the continuous output of high-pressure gas.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention adjusts the high-pressure bubble output frequency by regulating the input power frequency of the external power source and controlling the frequency at which the propeller impacts the connecting rod to compress the intake spring. The output gas volume is controlled by adjusting the distance of the stopper to compress the intake spring, thus achieving quantitative and frequency-controlled continuous output. This invention also adjusts the interlayer to change the volume of the compressed gas intake chamber, releasing all the gas in the chamber during a single experiment, thus achieving quantitative and controllable release of compressed gas in a single operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an air gun device used for continuous high-pressure gas ice-breaking experiments underwater.

[0017] Figure 2 This is a structural diagram of a gas gun device used for continuous high-pressure gas ice-breaking experiments underwater in the released state.

[0018] Figure 3 This is a structural diagram of a gas gun device used in a sealed state for a continuous high-pressure gas ice-breaking experiment underwater.

[0019] Figure 4 This is a three-dimensional schematic diagram of a gas gun device used for continuous high-pressure gas ice-breaking experiments underwater. Detailed Implementation

[0020] The present invention will now be further described with reference to the accompanying drawings.

[0021] This invention provides a gas gun device for underwater continuous high-pressure gas ice-breaking experiments, comprising three parts: a continuous propulsion zone, a gas inlet resistance zone, and a gas storage zone. The continuous propulsion zone provides a continuous, predetermined frequency, and fixed power input; the gas inlet resistance zone controls the gas output and cut-off; and the gas storage zone stores a large quantity of regulated compressed gas. The experimental device provided by this invention effectively achieves continuous, constant-frequency, and quantitative release of high-pressure gas bubbles for underwater ice breaking, and is simple, safe, and reliable in structure.

[0022] A gas gun device for underwater continuous high-pressure gas ice-breaking experiments includes a propulsion head 5, a gun body shell 6, a muzzle 10, and a stopper 11. The internal space of the gun body shell 6 consists of a left propulsion pipe 8, a middle muzzle channel, and a right compressed gas channel. The muzzle 10 is located at the upper end of the muzzle channel. The compressed gas channel has an internal interlayer 14 with a vent in the middle. The interlayer 14 divides the compressed gas channel into a left compressed gas inlet chamber 13 and a pressure-stabilized compressed gas chamber 15. The pressure-stabilized compressed gas chamber 15 is connected to an external pressure-stabilized gas source through an inlet 16. The following are the connections: The propulsion head 5 is installed inside the propulsion pipe 8, and the propulsion head 5 slides in a sealed manner with the wall of the propulsion pipe 8. The left end of the propulsion head 5 is connected to an external power source through the propulsion shaft 2. The left and right end faces of the propulsion pipe 8 are provided with shock-absorbing springs 3. The blocking device 11 is installed on the connecting rod 9 and arranged in the compressed gas inlet chamber 13. The right end of the blocking device 11 is connected to the interlayer 14 through the inlet spring 12. The left end of the connecting rod 9 extends into the propulsion pipe 8. The size of the connecting rod 9 is adapted to the air vent of the interlayer 14. The connecting rod 9 can extend into and seal the air vent of the interlayer 14.

[0023] The position of the interlayer 14 in the compressed gas channel is adjustable. By adjusting the interlayer 14, the volume of the compressed gas entering the resistance chamber 13 is changed, thereby realizing the single quantitative output of the air gun device.

[0024] The propulsion head 5 is provided with a first limiter 4, which cooperates with a second limiter 7 installed at a corresponding position on the wall of the propulsion pipe 8 to prevent the propulsion head 5 from being excessively impacted.

[0025] When using the air gun device, adjust the external power source according to the preset output air volume and bubble frequency to control the propulsion distance and frequency of the propulsion head 5; turn on the external pressure-stabilized gas source to fill the compressed gas channel with high-pressure gas; after turning on the external power source, the propulsion head 5 strikes the connecting rod 9, which in turn pushes the stopper 11 to compress the inlet spring 12. At the same time, the right end of the connecting rod 9 extends into and seals the air vent of the interlayer 14, realizing the quantitative output of high-pressure gas; after the high-pressure gas is output, the stopper 11 is rebounded by the inlet spring 12, and the stopper 11 separates the compressed gas inlet chamber 13 from the muzzle channel; the external power source continues to input according to the set frequency, entering a new cycle, realizing the continuous output of high-pressure gas.

[0026] The difference between this invention and previous high-pressure gas ice-breaking devices lies in the fact that this invention can continuously emit high-pressure gas bubbles at a fixed frequency and quantity. This invention adjusts the output frequency of the high-pressure bubbles by regulating the input power frequency of the external power source, thereby controlling the frequency at which the propulsion head 5 impacts the connecting rod 9 and compresses the feed spring 12. Previous high-pressure gas bubble ice-breaking devices could only emit high-pressure gas bubbles once, and could not continuously and control the frequency.

[0027] Furthermore, the present invention can adjust the distance of the compression of the forward spring 12 after the connecting rod 9 is impacted, and then calculate the volume of high-pressure gas released after each advancement based on the time of each advancement, the distance of each advancement, and the cross-sectional area of ​​the high-pressure gas output channel, so as to achieve controllability of the high-pressure gas volume release. Previous high-pressure bubble ice-breaking devices can only release all the gas in the cylinder and cannot achieve controllability of the release amount.

[0028] The present invention adds an adjustable stainless steel interlayer 14. By adjusting the interlayer 14, the volume of compressed gas entering the barrier chamber 13 can be changed. During a single experiment, the blocker 11 can be compressed close to the interlayer 14 to release all the compressed gas in the barrier chamber 13, thus achieving quantitative controllability during a single release of compressed gas.

[0029] Example 1:

[0030] like Figure 1 As shown, the present invention provides an air gun device for underwater continuous high-pressure gas ice-breaking experiments, including a propulsion handle 1, a propulsion shaft 2, a shock-absorbing spring 3, a limiter 4, a propulsion head 5, a device housing 6, a limiter 7, a propulsion pipe 8, a connecting rod 9, a muzzle 10, a blocking device 11, an inlet spring 12, a compressed gas inlet chamber 13, a sliding stainless steel interlayer 14, a pressure-stabilized compressed gas chamber 15, and a pressure-stabilized gas source inlet 16.

[0031] The propulsion shaft 2 is threaded and used to connect the propulsion handle 1 and the propulsion head 5. A shock-absorbing spring 3 is connected to the device wall for shock absorption. Limiters 4 and 7 are installed on both the propulsion head 5 and inside the device housing 6. The propulsion head 5 slides in a sealed manner against the propulsion pipe 8 device wall. The connecting rod 9 has a threaded connection to a blocking device 11, which is connected to the sliding stainless steel interlayer 14 by a resistance spring 12. A pressure-stabilized gas source inlet 16 is connected to the right side of the device housing 6. The sliding stainless steel interlayer 14 can be adjusted left and right to control the volume of compressed gas entering the resistance chamber 13. The central hole of the sliding stainless steel interlayer 14 can be sealed by the connecting rod 9. The air gun device provided by this invention effectively achieves underwater fixed-frequency and quantitative release of high-pressure gas bubbles for ice breaking, is easy and safe to operate, and has a simple and reliable structure.

[0032] Power input is achieved by connecting the push handle 1, push shaft 2, and push head 5 to an external motor, which impacts the connecting rod 9, compresses the resistance spring 12, and pushes the stopper 11. The distance between the push handle 1 and the stopper 11 is adjusted to control the external motor's pushing distance. The output gas volume for each cycle can be calculated using a formula. Adjusting the external motor's pushing frequency controls the continuous output frequency of the bubbles. The pressure-stabilized compression cylinder housing is filled with pressure-stabilized gas through the pressure-stabilized gas source inlet 16. When the stopper 11 is pushed to the right by the push head, gas flows from the pressure-stabilized cylinder into the jet output channel, achieving high-pressure gas output. After the continuous push device rebounds, the stopper 11 and connecting rod 9 are pushed to the left by the resistance spring 12, pressing against the internal rigid body of the gun housing to achieve a return seal.

[0033] refer to Figure 2 and Figure 3 When continuous high-pressure bubbles are required, connect the propulsion handle 1 to the external motor, and adjust the propulsion distance and frequency of the external motor according to the desired output gas volume and bubble frequency; connect the regulated compressed gas source through the regulated gas source inlet 16 on the right side of the device casing, so that the high-pressure gas fills the gas storage area; turn on the motor, and the power of the external motor is connected to the device through the continuous propulsion device, so that the propulsion head 5 hits the connecting rod 9 and compresses the inlet spring 12, pushing the stopper 11 to achieve high-pressure gas output; after the high-pressure gas is output, the power of the external motor is recovered, and the connecting rod 9 and the stopper 11 are rebounded to the left by the inlet spring 12 to seal and block the gas; the power of the external motor continues to be input, and the device enters a new cycle, which can release the same amount of high-pressure gas again.

[0034] During a single-volume high-pressure gas release, the push handle 1 is connected to an external motor, and the regulated compressed gas source is connected through the regulated gas source inlet 16 on the right side of the device housing. The high-pressure gas fills the gas storage area according to the desired output volume. The volume of the compressed gas inlet chamber 13 can be changed by adjusting the sliding stainless steel jacket 14. The inlet stopper 11 is compressed close to the wall of the right sliding stainless steel jacket 14 through the power input device, and the compressed gas in the inlet chamber 13 is completely released to achieve quantitative release. The external motor power is recovered, and the connecting rod 9 and the stopper 11 are rebounded to the left by the inlet stop spring 12 to seal and block the gas.

[0035] This invention provides an air gun device for continuous high-pressure gas ice-breaking experiments underwater. It is an optimization of previous devices, employing a simple and adjustable mechanical structure to connect the propulsion device. The propulsion input port is externally connected to an external motor, allowing for arbitrary adjustment of the output gas frequency and volume. It can continuously output high-pressure gas, reducing processing and assembly difficulty. During operation, the shock-absorbing spring provides buffering and directional correction, extending the device's service life. This invention uses sealed threads on the propulsion shaft and connecting rod, increasing airtightness while allowing adjustment of the power input distance, reducing power input requirements and increasing controllability of the output gas volume. This invention controls the output bubble frequency by controlling the frequency at which the external motor impacts the connecting rod 9 via the connecting handle 1, compressing the intake spring 12. The output gas volume is controlled by controlling the distance of the compression spring 12, achieving quantitative and frequency-controlled continuous output. During single-pass compressed gas output, the volume of the compressed gas intake chamber 13 can be changed by adjusting the sliding stainless steel jacket 14, enabling quantitative output of gas per pass.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A gas gun device for underwater continuous high-pressure gas ice-breaking experiments, characterized in that: The device includes a propulsion head (5), a gun body shell (6), a muzzle (10), and a stopper (11). The internal space of the gun body shell (6) consists of a left propulsion pipe (8), a middle muzzle channel, and a right compressed gas channel. The muzzle (10) is located at the upper end of the muzzle channel. The compressed gas channel has an internal interlayer (14) with a vent in the middle. The interlayer (14) divides the compressed gas channel into a left compressed gas inlet chamber (13) and a pressure-stabilized compressed gas chamber (15). The pressure-stabilized compressed gas chamber (15) is connected to an external pressure-stabilized gas source through an inlet (16). The propulsion head (5) is located in the propulsion pipe. (8) Inside, the propulsion head (5) and the wall of the propulsion pipe (8) are sealed and slide. The left end of the propulsion head (5) is connected to the external power source through the propulsion shaft (2). The left and right end faces of the propulsion pipe (8) are provided with shock-absorbing springs (3). The blocker (11) is installed on the connecting rod (9) and arranged in the compressed gas inlet chamber (13). The right end of the blocker (11) is connected to the interlayer (14) through the inlet spring (12). The left end of the connecting rod (9) extends into the propulsion pipe (8). The size of the connecting rod (9) is adapted to the air vent of the interlayer (14). The connecting rod (9) can extend into and seal the air vent of the interlayer (14). The position of the interlayer (14) in the compressed gas channel is adjustable. By adjusting the interlayer (14), the volume of the compressed gas inlet chamber (13) is changed, thereby realizing the single quantitative output of the air gun device. When using the air gun device, adjust the external power source according to the preset output air volume and bubble frequency to control the propulsion distance and frequency of the propulsion head (5); turn on the external pressure stabilizing gas source to fill the compressed gas channel with high-pressure gas; after turning on the external power source, the propulsion head (5) hits the connecting rod (9), which in turn pushes the stopper (11) to compress the inlet spring (12). At the same time, the right end of the connecting rod (9) extends into and seals the air vent of the interlayer (14) to achieve quantitative output of high-pressure gas; after the high-pressure gas is output, the stopper (11) is rebounded by the inlet spring (12), and the stopper (11) separates the compressed gas inlet chamber (13) from the muzzle channel; the external power source continues to input according to the set frequency, enters a new cycle, and achieves continuous output of high-pressure gas.

2. The air gun device for underwater continuous high-pressure gas ice-breaking experiments according to claim 1, characterized in that: The propulsion head (5) is provided with a first limiter (4), which cooperates with a second limiter (7) installed at a corresponding position on the wall of the propulsion pipe (8) to prevent the propulsion head (5) from excessive impact.

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