Water cannon system and method for enhancing its denial, marking, drag-reducing and strike capabilities

Abstract

The application discloses a water cannon system, which comprises a water cannon device, a main pipeline and a filling assembly; the water cannon device is installed on a deck of a ship, and a water inlet of the water cannon device is communicated with an outlet end of the main pipeline; the filling assembly comprises a filling pipeline, a dry material storage device and a liquid storage device; the filling pipeline is communicated with the main pipeline, and the filling pipeline is connected with the dry material storage device and the liquid storage device; the dry material storage device stores seawater modifier powder; and the liquid storage device stores natural organic solvents used for dissolving the seawater modifier powder. The water cannon system has the advantages that the dry material storage device for storing the seawater modifier and the liquid storage device for storing the natural organic solvents are designed, the natural organic solvents are used for dissolving the seawater modifier and mixing with seawater of the main pipeline of the water cannon, the seawater working medium is enhanced in the property of being gathered, the shooting range of the water cannon and the striking force of a tail section of a water column are improved, and the use effect of the water cannon is enhanced.

Description

Technical Field

[0001] This invention relates to the field of water cannon technology, specifically to a water cannon system and its methods for denial, marking, drag reduction and strike capability enhancement. Background Technology

[0002] Water cannon systems are an important piece of equipment on ships, using high-pressure water jets as a non-lethal means of attack. They can support large-scale surface confrontation operations, and when necessary, serve as a deterrent and dispersal tool, while also providing firefighting capabilities. However, in medium- to long-range engagements, existing water cannons suffer from insufficient terminal force due to air shear forces during the jet's propulsion, resulting in mediocre effectiveness and poor results in deterring ships and denying personnel. Therefore, enhancing the terminal force of water cannons and strengthening their effectiveness in various scenarios such as deterrence, denial, and marking is an urgent need for government vessels and other vessels in surface confrontations. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a water cannon system and a method for enhancing its denial, marking, drag reduction, and strike capabilities, thereby improving the effectiveness of water cannons.

[0004] The technical solution adopted in this invention is: a water cannon system, including a water cannon device, a main pipeline and a refueling assembly;

[0005] The water cannon device is installed on the deck of the ship. The inlet of the water cannon device is connected to the outlet of the main pipeline. The main pipeline extends from above the deck to below the deck. A water cannon pump is installed on the main pipeline, and a sea valve is installed at the inlet of the main pipeline.

[0006] The filling assembly includes a filling pipeline, a dry material storage device, and a liquid storage device;

[0007] One end of the filling pipeline is connected to the main pipeline through the first connecting pipeline, and the other end of the filling pipeline is connected to the dry material storage device and the liquid storage device through pipelines respectively.

[0008] The dry material storage device stores seawater modifier powder;

[0009] The liquid storage device contains a natural organic solvent for dissolving seawater modifier powder.

[0010] According to the above scheme, the dry material storage device also stores irritating powder and dye powder.

[0011] According to the above scheme, a screw pump and a pipeline static mixer are sequentially arranged along the fluid flow direction on the filling pipeline; a vertical pipeline connecting the filling pipeline and the dry material storage equipment is located upstream of the screw pump, and this vertical pipeline is connected to the filling pipeline through a proportioning mixer; a pipeline connecting the filling pipeline and the liquid storage equipment is located upstream of the proportioning mixer; a water injection pipeline is also provided on the connecting pipeline between the liquid storage equipment and the filling pipeline, and a water tank is connected to the end of the water injection pipeline.

[0012] According to the above scheme, the seawater modifier is a natural polymer hydrogel, and one of the following is selected: cellulose hydrogel, gelatin hydrogel, or sodium alginate hydrogel.

[0013] According to the above scheme, the staining agent is selected from one of polyphenol staining agents, ketone staining agents, and quinone staining agents.

[0014] According to the above scheme, the water cannon system is also equipped with an overboard discharge pipeline, and an overboard discharge valve is connected to the end of the overboard discharge pipeline; the overboard discharge pipeline is connected to the filling pipeline through a second connecting pipeline, and the overboard discharge pipeline is connected to the main pipeline through a third connecting pipeline; valves are respectively installed on the main pipeline downstream of the first connecting pipeline, the second connecting pipeline, the third connecting pipeline, the water injection pipeline, and the liquid injection pipeline.

[0015] The present invention also employs a method for denial using the water cannon system described above, the method being as follows:

[0016] Flushing of the pipeline; after flushing, close all valves mentioned above.

[0017] The valves on the main pipeline, water injection pipeline, and first connecting pipeline are opened; the storage tank containing the stimulant powder in the dry material storage equipment is opened, and the stimulant powder enters the proportioning mixer through the vertical pipeline; fresh water in the water tank enters the injection pipeline and mixes with the stimulant powder in the injection pipeline; the screw pump draws the mixed solution into the pipeline static mixer for further mixing, and then enters the main pipeline to mix with seawater, which is then sprayed out by the water cannon device to non-lethally deter the target vessel or personnel.

[0018] The present invention also employs a method for marking using the water cannon system described above, the method being as follows:

[0019] Flushing of the pipeline; after flushing, closing all valves.

[0020] The valves on the main pipeline, water injection pipeline, and first connecting pipeline are opened; the storage tank for storing dye powder in the dry material storage equipment is opened, and the dye powder enters the proportioning mixer through the vertical pipeline; fresh water in the water tank enters the injection pipeline and mixes with the dye powder in the injection pipeline; the screw pump draws the solution into the pipeline static mixer, mixes it, and then enters the main pipeline to mix with seawater. The solution is then sprayed out by the water cannon device to mark the target vessel or personnel, and the water curtain formed by the water cannon device is used to obscure the vision of the target vessel's photoelectric equipment, camera equipment, portholes, etc.

[0021] The present invention also employs a drag reduction method for the water cannon system as described above, the method being:

[0022] Flushing of the pipeline; after flushing, closing all valves.

[0023] The valves on the main pipeline, water injection pipeline, and first connecting pipeline are opened; the storage tank containing seawater modifier powder in the dry material storage equipment is opened, and the seawater modifier powder enters the proportioning mixer through the vertical pipeline; fresh water in the water tank enters the injection pipeline and mixes with the seawater modifier powder in the injection pipeline; the screw pump draws the solution into the pipeline static mixer for mixing, and then enters the main pipeline to mix with seawater. After mixing, the mass concentration of the seawater modifier is less than 0.1%; the mixed solution is sprayed out by the water cannon device to reduce pipeline drag.

[0024] This invention also employs a method for enhancing the terminal strike capability of the water cannon system as described above, the method being:

[0025] Flushing of the pipeline; after flushing, close all valves.

[0026] The valves on the main pipeline, water injection pipeline, liquid injection pipeline, and first connecting pipeline are opened; the storage tank storing seawater modifier powder in the dry material storage equipment is opened, and the seawater modifier powder enters the proportioning mixer through the vertical pipeline; the natural organic solvent in the liquid storage equipment enters the injection pipeline and mixes with the seawater modifier powder in the injection pipeline to form a high-concentration solution; the screw pump draws the high-concentration solution into the main pipeline to mix with seawater, and the mass concentration of the seawater modifier after mixing is 0.3%~0.5%; the mixed solution is sprayed out by the water cannon device to improve the terminal impact capability of the water jet.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. This invention designs a dry storage device for storing seawater modifiers and a liquid storage device for storing natural organic solvents. The natural organic solvents are used to dissolve the seawater modifiers and mix them with the seawater in the main pipeline of the water cannon, thereby enhancing the cohesiveness of the seawater working fluid, increasing the range of the water cannon and the terminal impact force of the water jet, and enhancing the effectiveness of the water cannon.

[0029] 2. The dry material storage device for storing seawater modifiers designed in this invention can reduce pipeline drag and improve the effect by mixing the seawater modifiers with seawater in the main pipeline.

[0030] 3. The dry material storage device in this invention also stores dye powder and stimulant powder. By adding dye, the target ship and personnel are dyed and marked, and the target ship's photoelectric equipment, camera equipment, portholes and other visual equipment are blocked. By adding stimulant, the non-lethal deterrent effect on the target ship and personnel is enhanced.

[0031] 4. The invention also includes an overboard flushing pipeline to ensure the normal operation of all functions of the water cannon. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a specific embodiment of the present invention.

[0033] Among them: 1-Water cannon device; 2-Electric valve; 3-Water cannon pump; 4-Sea valve; 5-Sea valve box; 6-Outboard discharge valve; 7-Dry material storage equipment; 8-Proportioning mixer; 9-Liquid tank; 10-Water tank; 11-Pipeline static mixer; 12-Screw pump; 13-Injection pipeline; 14-Main pipeline; 15-Outboard discharge pipeline; 16-Vertical pipeline; 17-Water injection pipeline; 18-Liquid injection pipeline; 19-First connecting pipeline; 20-Second connecting pipeline; 21-Third connecting pipeline. Detailed Implementation

[0034] To better understand the present invention, it will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 The multifunctional water cannon system shown includes a water cannon device 1, a main pipeline 14, and a refueling assembly.

[0036] The water cannon device 1 is installed on the deck of the ship. The inlet of the water cannon device 1 is connected to the outlet of the main pipeline 14. The main pipeline 14 extends from above the deck to below the deck. A water cannon pump 3 is installed on the main pipeline 14. A sea valve 4 is installed at the inlet of the main pipeline 14. The sea valve 4 is installed in the sea valve box 5.

[0037] The filling assembly includes a filling pipeline 13, a dry material storage device 7, and a liquid storage device;

[0038] One end of the filling pipeline 13 is connected to the main pipeline 14 through the first connecting pipeline 19, and the other end of the filling pipeline 13 is connected to the dry material storage device 7 and the liquid storage device through pipelines respectively.

[0039] The dry material storage device 7 stores seawater modifier powder;

[0040] The liquid storage device contains a natural organic solvent for dissolving seawater modifier powder.

[0041] In this invention, the outlet end of the main pipeline 14 is connected to the inlet of the water cannon device 1 via an electric valve 2.

[0042] In this invention, the liquid storage device is connected to the filling pipeline 13 via a liquid filling pipeline. The connection point between the two is located upstream of the connection point between the dry material storage device 7 and the filling pipeline 13. After the liquid in the liquid storage device enters the filling pipeline 13, it can dissolve the seawater modifier powder that enters the filling pipeline 13 downstream, and then flow into the main pipeline 14.

[0043] Preferably, the dry material storage device 7 also stores irritant powder and dye powder.

[0044] In this invention, each powder in the dry material storage device 7 is stored separately and can be fed into the filling pipeline 13 separately. Specifically, the dry material storage device 7 includes multiple separate storage tanks equipped with electric valves for storing different types of solid powders. The dry material storage device 7 is located above the filling pipeline 13. The outlet of each storage tank in the dry material storage device 7 is connected to the upper end of the vertical pipeline 16, and the lower end of the vertical pipeline 16 is connected to the filling pipeline 13. After the tank is opened, the powder in the tank can enter the filling pipeline 13 along the vertical pipeline 16 under the action of gravity. Depending on the situation, seawater modifier, stimulant powder, or dye powder is injected into the filling pipeline 13 through the dry material storage device 7. The liquid storage device injects liquid for dissolving the seawater modifier into the filling pipeline 13. The liquid storage device is a liquid tank 9.

[0045] Preferably, a screw pump 12 and a pipeline static mixer 11 are sequentially arranged on the filling pipeline 13 along the fluid flow direction; a vertical pipeline 16 connecting the filling pipeline 13 and the dry material storage device 7 is located upstream of the screw pump 12, and the vertical pipeline 16 is connected to the filling pipeline 13 through a proportioning mixer 8; the pipeline connecting the filling pipeline 13 and the liquid storage device is located upstream of the proportioning mixer 8.

[0046] In this invention, the dry material storage device 7 is installed at a height greater than the filling pipeline 13. The dry material storage device 7 is equipped with a spiral mechanical feeding mechanism. The solid powder working medium in the storage tank of the dry material storage device 7 enters the proportioning mixer 8 through gravity and mechanical addition, utilizing the negative pressure after the screw pump 12. The head of the screw pump 12 is greater than the pressure of the main pipeline 14 of the water cannon device 1.

[0047] Preferably, a water injection pipe 17 is also provided on the connecting pipe between the liquid storage device and the injection pipe 13, and a water tank 10 is connected to the end of the water injection pipe 17. After the irritant powder or dye powder in the dry material storage device 7 is added, water is injected into the injection pipe 13 through the water tank 10 and the water injection pipe 17 to flush the irritant powder or dye powder into the main pipe 14.

[0048] Specifically, when seawater modifier powder from the material storage device 7 enters the proportioning mixer 8, a screw pump 12 draws liquid working fluid from the liquid storage device and carries it into the screw pump 12. After the screw pump 12 increases the pressure, the liquid enters the pipeline static mixer 11. After premixing in the pipeline static mixer 11, the liquid enters the main pipeline 14. When irritant powder or dye powder from the material storage device 7 enters the proportioning mixer 8, a screw pump 12 draws water from the water tank 10 and carries it into the screw pump 12. After the screw pump 12 increases the pressure, water enters the pipeline static mixer 11. After premixing in the pipeline static mixer 11, the water enters the main pipeline 14.

[0049] In this invention, the working medium stored in the dry material storage device 7 includes seawater modifier powder, stimulant powder, and dye powder (each type of powder is separately packaged in different storage tanks); wherein, the seawater modifier powder is a natural polymer hydrogel; the stimulant powder is natural capsaicin; and the dye powder is a natural dye that is non-toxic to the human body.

[0050] Preferably, the natural polymer hydrogel can be selected from cellulose hydrogel, gelatin hydrogel, and sodium alginate hydrogel. The dye powder is a natural dye, which can be selected from polyphenol dyes, ketone dyes, and quinone dyes.

[0051] In this invention, the working fluid stored in the liquid storage device is a natural organic solvent, which is non-toxic to the human body and is used to dissolve seawater modifier powder to form a high-concentration solution. The natural organic solvent can be tetrafluoropropanol or ethyl acetate, and the solubility of the seawater modifier powder in the natural organic solvent is greater than 25%. The natural organic solvent stored in the liquid tank 9 is mixed with the seawater modifier powder to form a high-concentration solution, and the proportion of seawater modifier in the high-concentration solution ranges from 20% to 30%. The high-concentration solution enters the water cannon main pipeline 14 and mixes with the seawater working fluid in the main pipeline 14 to enhance the concentration of seawater and improve the range and terminal impact force of the water cannon.

[0052] Preferably, the water cannon system further includes an overboard discharge pipe 15, the end of which is connected to an overboard discharge valve 6; the overboard discharge pipe 15 is connected to the filling pipe 13 via a second connecting pipe 20, and to the main pipe 14 via a third connecting pipe 21. In this invention, the overboard discharge pipe 15 is used for cleaning the pipe after different powders have been used.

[0053] In this invention, valves are respectively installed on the main pipeline 14 downstream of the first connecting pipeline 19, the second connecting pipeline 20, the third connecting pipeline 21, the water injection pipeline 17, and the liquid injection pipeline 18. All of these valves can be electric valves. Figure 1 All unmarked valves on the pipelines are electric valves.

[0054] The water cannon system described in this invention has drag reduction, enhancement, deterrence, and marking functions, which can be achieved by switching valves. Specifically, the drag reduction function refers to reducing the resistance of the main pipeline 14 of the water cannon system; the enhancement function refers to increasing the range and terminal impact force of the water cannon on the existing basis; the deterrence function refers to the ability to effectively deter and prevent specific targets or areas from approaching or entering a certain range by spraying high-pressure water jets; and the marking function refers to marking targets or specific areas by spraying water jets with specific marking substances to facilitate identification, location, and subsequent operations.

[0055] Denial operations are conducted when it is necessary to effectively deter specific personnel or vessels and prevent them from approaching or entering a certain area. One method for denial using the water cannon system described above is as follows:

[0056] Flushing of the pipeline; after flushing, close all valves mentioned above.

[0057] The valves on the main pipeline, water injection pipeline 17, and first connecting pipeline 19 are opened; the storage tank containing the stimulant powder in the dry material storage equipment 7 is opened, and the stimulant powder enters the proportioning mixer 8 through the vertical pipeline 16; the fresh water in the water tank 10 enters the injection pipeline 13 and mixes with the stimulant powder in the injection pipeline 13; the screw pump 12 draws the mixed solution into the pipeline static mixer 11 for mixing, and then enters the main pipeline 14 to mix with seawater, which is then sprayed out by the water cannon device 1 to non-lethally deny the target vessel or personnel.

[0058] When it is necessary to color-code specific vessels or personnel, a marking operation is performed. One method for marking using a water cannon system, as described above, is as follows:

[0059] Flushing of the pipeline; after flushing, closing all valves.

[0060] The valves on the main pipeline 14, the water injection pipeline 17, and the first connecting pipeline 19 are opened; the storage tank storing the dye powder in the dry material storage equipment 7 is opened, and the dye powder enters the proportioning mixer 8 through the vertical pipeline 16; the fresh water in the water tank 10 enters the filling pipeline 13 and mixes with the dye powder in the filling pipeline 13; the screw pump 12 draws the solution into the pipeline static mixer 11 for mixing, and then enters the main pipeline 14 to mix with seawater. The solution is then sprayed out by the water cannon device 1 to mark the target ship or personnel, and the water curtain formed by the water cannon device 1 is used to obscure the vision of the target ship's photoelectric equipment, camera equipment, portholes, etc.

[0061] When it is necessary to increase the range of a water cannon, drag reduction operations are performed. One method for drag reduction in a water cannon system is as follows:

[0062] Flushing of the pipeline; after flushing, closing all valves.

[0063] The valves on the main pipeline 14, the water injection pipeline 17, and the first connecting pipeline 19 are opened; the storage tank storing seawater modifier powder in the dry material storage equipment 7 is opened, and the seawater modifier powder enters the proportioning mixer 8 through the vertical pipeline 16; the fresh water in the water tank 10 enters the injection pipeline 13 and mixes with the seawater modifier powder in the injection pipeline 13; the screw pump 12 draws the solution into the pipeline static mixer 11 for mixing, and then enters the main pipeline 14 to mix with seawater. After mixing, the mass concentration of the seawater modifier is less than 0.1%; the mixed solution is sprayed out by the water cannon device 1 to reduce pipeline drag.

[0064] In this invention, a seawater modifier is mixed with seawater to form a seawater modifier solution with a mass concentration of less than 0.1%. During flow, this solution forms a wetting film on the pipe wall, reducing the resistance of the water flow in the pipe and thus achieving pipeline drag reduction. When it is necessary to enhance the strike effect on a specific target, an enhancement operation is performed. A method for enhancing the terminal strike capability of a water cannon system is provided, comprising:

[0065] Flushing of the pipeline; after flushing, close all valves.

[0066] The valves on the main pipeline 14, water injection pipeline 17, liquid injection pipeline 18, and first connecting pipeline 19 are opened; the storage tank storing seawater modifier powder in the dry material storage equipment 7 is opened, and the seawater modifier powder enters the proportioning mixer 8 through the vertical pipeline 16; the natural organic solvent in the liquid storage equipment enters the injection pipeline 13 and mixes with the seawater modifier powder in the injection pipeline 13 to form a high-concentration solution; the screw pump 12 draws the high-concentration solution into the main pipeline 14 to mix with seawater, and the mass concentration of the seawater modifier after mixing is 0.3%~0.5%; the mixed solution is sprayed out by the water cannon device 1 to improve the terminal impact capability of the water column.

[0067] In this invention, the seawater modifier is mixed with seawater to form a seawater modifier solution with a mass concentration of 0.3%-0.5%. This solution forms a network structure inside the seawater, which enhances the hydrogen bonds and van der Waals forces between water molecules. This reduces the diffusion and atomization of the water column caused by air shear forces, enhances the cohesiveness of the seawater, and thus improves the impact capability of the water column tip.

[0068] In this invention, the pipeline flushing method is as follows: the valves and the flank side valve on the first connecting pipeline 19, the second connecting pipeline 20 and the third connecting pipeline 21 are opened, and at the same time the valve on the water injection pipeline 17 is opened, while the dry material storage device 7, the liquid storage device and other valves are closed; the screw pump 12 draws water from the water tank 10 to flush the injection pipeline 13, and the flushed fluid is discharged through the flank side pipeline 15.

[0069] In this invention, the system controls the feeding concentration by changing the mechanical feeding speed and the screw pump 12 speed in the dry material storage device 7. The system calculates the amount of solid powder working fluid required per second based on the flow rate of the water cannon pump 3 and the set feeding concentration, thereby controlling the feeding speed of the mechanical feeding actuator of the dry material storage device 7, and matching the preset screw pump 12 speed according to the dissolution characteristics of different working fluids.

[0070] In this invention, the system achieves the switching of the working medium through the opening and closing of the electric valve of the dry material storage device 7 tank and provides four functional commands such as drag reduction, enhancement, rejection, and marking; according to the selected functional command, it controls the opening and closing of the electric valve of the relevant working medium storage tank of the dry material storage device 7, and opens the pipeline valve of the water tank 10 / liquid tank according to the selected functional command.

[0071] In this invention, under abnormal operating conditions, the refueling component, dry material storage device 7, and related valves can be manually shut off. The refueling component and the main water cannon pipeline 14 are connected in parallel, and malfunctions of the refueling component and dry material storage device 7 do not affect the operation of the water cannon device 1.

[0072] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0073] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water cannon system, characterized in that, Includes water cannon equipment, main pipeline, and refueling components; The water cannon device is installed on the deck of the ship. The inlet of the water cannon device is connected to the outlet of the main pipeline. The main pipeline extends from above the deck to below the deck. A sea valve is installed at the inlet of the main pipeline. The filling assembly includes a filling pipeline, a dry material storage device, and a liquid storage device; One end of the filling pipeline is connected to the main pipeline through the first connecting pipeline, and the other end of the filling pipeline is connected to the dry material storage device and the liquid storage device through pipelines respectively. The dry material storage device stores seawater modifier powder; The liquid storage device contains a natural organic solvent for dissolving the seawater modifier powder; The dry material storage device also stores irritating powder and dye powder; A screw pump and a static mixer are sequentially installed along the fluid flow direction on the filling pipeline; a vertical pipeline connecting the filling pipeline and the dry material storage equipment is located upstream of the screw pump, and this vertical pipeline is connected to the filling pipeline through a proportioning mixer; a pipeline connecting the filling pipeline and the liquid storage equipment is located upstream of the proportioning mixer; a water injection pipeline is also provided on the connecting pipeline between the liquid storage equipment and the filling pipeline, and a water tank is connected to the end of the water injection pipeline; The seawater modifier is a natural polymer hydrogel, selected from cellulose hydrogel, gelatin hydrogel, and sodium alginate hydrogel.

2. The water cannon system as described in claim 1, characterized in that, The staining agent is selected from one of the following: polyphenol staining agents, ketone staining agents, and quinone staining agents.

3. The water cannon system as described in claim 2, characterized in that, The water cannon system is also equipped with an overboard discharge pipeline, the end of which is connected to an overboard discharge valve. The overboard discharge pipeline is connected to the filling pipeline via a second connecting pipeline, and the overboard discharge pipeline is connected to the main pipeline via a third connecting pipeline. Valves are respectively installed on the main pipeline downstream of the first connecting pipeline, the second connecting pipeline, the third connecting pipeline, the water injection pipeline, and the liquid injection pipeline.

4. A method for denial using the water cannon system as described in claim 3, the method comprising: Flushing of the pipeline; after flushing, close all valves mentioned above. The valves on the main pipeline, water injection pipeline, and first connecting pipeline are opened; the storage tank containing the stimulant powder in the dry material storage equipment is opened, and the stimulant powder enters the proportioning mixer through the vertical pipeline; fresh water in the water tank enters the injection pipeline and mixes with the stimulant powder in the injection pipeline; the screw pump draws the mixed solution into the pipeline static mixer for further mixing, and then enters the main pipeline to mix with seawater, which is then sprayed out by the water cannon device to non-lethally deter the target vessel or personnel.

5. A method for marking using the water cannon system as described in claim 3, characterized in that, The method is as follows: Flushing of the pipeline; after flushing, closing all valves. The valves on the main pipeline, water injection pipeline, and first connecting pipeline are opened; the storage tank for storing dye powder in the dry material storage equipment is opened, and the dye powder enters the proportioning mixer through the vertical pipeline; fresh water in the water tank enters the injection pipeline and mixes with the dye powder in the injection pipeline; the screw pump draws the solution into the pipeline static mixer, mixes it, and then enters the main pipeline to mix with seawater. The solution is then sprayed out by the water cannon device to mark the target vessel or personnel, and the water curtain formed by the water cannon device is used to block the view of the target vessel's photoelectric equipment, camera equipment, and portholes.

6. A drag reduction method for a water cannon system as described in claim 3, characterized in that, The method is as follows: Flushing of the pipeline; after flushing, closing all valves. The valves on the main pipeline, water injection pipeline, and first connecting pipeline are opened; the storage tank containing seawater modifier powder in the dry material storage equipment is opened, and the seawater modifier powder enters the proportioning mixer through the vertical pipeline; fresh water in the water tank enters the injection pipeline and mixes with the seawater modifier powder in the injection pipeline; the screw pump draws the solution into the pipeline static mixer for mixing, and then enters the main pipeline to mix with seawater. After mixing, the mass concentration of the seawater modifier is less than 0.1%; the mixed solution is sprayed out by the water cannon device to reduce pipeline drag.

7. A method for enhancing the terminal strike capability of a water cannon system as described in claim 3, characterized in that, The method is as follows: Flushing of the pipeline; after flushing, close all valves. The valves on the main pipeline, water injection pipeline, liquid injection pipeline, and first connecting pipeline are opened; the storage tank storing seawater modifier powder in the dry material storage equipment is opened, and the seawater modifier powder enters the proportioning mixer through the vertical pipeline; the natural organic solvent in the liquid storage equipment enters the injection pipeline and mixes with the seawater modifier powder in the injection pipeline to form a high-concentration solution; the screw pump draws the high-concentration solution into the main pipeline to mix with seawater, and the mass concentration of the seawater modifier after mixing is 0.3%~0.5%; the mixed solution is sprayed out by the water cannon device to improve the terminal impact capability of the water jet.

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