Water cannon system and denial, marking, resistance reducing and striking capability strengthening method thereof

Abstract

The invention discloses a water cannon system which comprises a water cannon device, a main pipeline and a filling assembly. The water cannon device is mounted on a deck of the ship, and a water inlet of the water cannon device is communicated with the 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 is connected with the dry material storage equipment and the liquid storage equipment; seawater modifier powder is stored in the dry material storage equipment; a natural organic solvent for dissolving seawater modifier powder is stored in the liquid storage equipment. The water cannon has the beneficial effects that the dry material storage equipment for storing the seawater modifier and the liquid storage equipment for storing the natural organic solvent are designed, the natural organic solvent is used for dissolving the seawater modifier and is mixed with seawater of the water cannon main pipeline, the seawater working medium bundling property is enhanced, the water cannon range and the water column tail section hitting power are improved, and the water cannon efficiency is improved. And the use effect of the water cannon is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of water cannons, and in particular to a water cannon system and a method for enhancing its denial, marking, drag reduction and strike capabilities. Background Art

[0002] The water cannon system is an important equipment on ships. It uses high-pressure water flow as a non-lethal means of attack, can support large-scale water surface confrontation operations, and play a role in expelling and deterring when necessary, while taking into account external firefighting. However, in the process of medium and long-range confrontation, the existing water cannons have insufficient striking power in the final stage of the water column due to the influence of air shear force during the jet process, and the effect of water cannons is generally poor, and the effect of expelling ships and denying personnel is poor. Therefore, it is an urgent need for official ships and other ships in the current water surface confrontation process to enhance the striking power of the water cannon in the final stage and strengthen the effectiveness of water cannons in different scenarios such as expulsion, denial, and marking. Summary of the invention

[0003] The purpose of the present invention is to provide a water cannon system and a method for enhancing its rejection, marking, drag reduction and strike capability, in order to improve the use effect of the water cannon, in view of the deficiencies in the prior art.

[0004] The technical solution adopted by the present invention is: a water cannon system, including a water cannon device, a main pipeline and a filling component; The water cannon device is installed on the deck of the ship, the water inlet of the water cannon device is connected with the outlet end of the main pipeline, the main pipeline extends from above the deck of the ship to below the deck, a water cannon pump is arranged on the main pipeline, and a sea valve is arranged at the inlet end 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 a 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 stores a natural organic solvent for dissolving seawater modifier powder.

[0005] According to the above scheme, the dry material storage device also stores irritant powder and colorant powder.

[0006] According to the above scheme, a screw pump and a pipeline static mixer are arranged in sequence along the fluid flow direction of the filling pipeline; the vertical pipeline connecting the filling pipeline and the dry material storage device is located upstream of the screw pump, and the vertical pipeline is connected to the filling pipeline through a proportional mixer; the pipeline connecting the filling pipeline and the liquid storage device is located upstream of the proportional mixer; a water injection pipeline is also provided on the connecting pipeline between the liquid storage device and the filling pipeline, and the end of the water injection pipeline is connected to a water tank.

[0007] According to the above scheme, the seawater modifier is a natural polymer hydrogel, and one of cellulose hydrogel, gelatin hydrogel and sodium alginate hydrogel can be selected.

[0008] According to the above scheme, the dye can be selected from one of polyphenol dyes, ketone dyes and quinone dyes.

[0009] According to the above scheme, the water cannon system is also provided with an overboard discharge pipe, and the end of the overboard discharge pipe is connected to an overboard valve; the overboard discharge pipe is connected to the filling pipe through the second connecting pipe, and the overboard discharge pipe is connected to the main pipe through the third connecting pipe; valves are respectively arranged on the first connecting pipe, the second connecting pipe, the third connecting pipe, the main pipe downstream of the third connecting pipe interface, the water injection pipe and the liquid injection pipe.

[0010] The present invention also adopts a method of denying using the water cannon system as described above, the method comprising: Flush the pipeline and close the above valves after flushing is completed; The valves on the injection pipeline, water injection pipeline and first connecting pipeline are opened; the storage tank storing irritant powder in the dry material storage equipment is opened, and the irritant powder enters the proportioning mixer through the vertical pipeline; the fresh water in the water tank enters the filling pipeline and mixes with the irritant powder in the filling pipeline; the screw pump sucks the mixed solution into the pipeline mixer for mixing, and then enters the main pipeline to mix with seawater, and is sprayed out by the water cannon device to carry out non-lethal denial of the target ship or personnel.

[0011] The present invention also adopts a method for marking using the water cannon system as described above, the method comprising: Flush the pipeline and close all valves after flushing is completed; The valves on the main pipeline, the water injection pipeline and the first connecting pipeline are opened; the storage tank storing the dye powder in the dry material storage equipment is opened, and the dye powder enters the proportioning mixer through the vertical pipeline; the fresh water in the water tank enters the filling pipeline and mixes with the dye powder in the filling pipeline; the screw pump sucks the solution into the pipeline mixer for mixing, and then enters the main pipeline to mix with seawater, which is sprayed out by the water cannon device to mark the target ship or personnel, and the water curtain formed by the water cannon device is used to block the field of view of the target ship's optoelectronic equipment, camera equipment, portholes, etc.

[0012] The present invention also adopts a drag reduction method of the water cannon system as described above, which is: Flush the pipeline and close all valves after flushing is completed; The valves on the main pipeline, the water injection pipeline and the first connecting pipeline are opened; the storage tank storing the 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 fresh water in the water tank enters the filling pipeline and mixes with the seawater modifier powder in the filling pipeline; the screw pump sucks the solution into the pipeline mixer for mixing, and then enters the main pipeline to mix with seawater. The mass concentration of the seawater modifier after mixing is less than 0.1%; the mixed solution is sprayed out by the water cannon device to achieve pipeline resistance reduction.

[0013] The present invention also adopts a method for strengthening the terminal striking capability of the water cannon system as described above, which is: Flush the pipeline and close all valves after flushing is completed; The valves on the main pipeline, water injection pipeline, liquid injection pipeline and the first connecting pipeline are opened; the storage tank storing the 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 filling pipeline and mixes with the seawater modifier powder in the filling pipeline to form a high-concentration solution; the screw pump sucks 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 striking ability of the end section of the water column.

[0014] The beneficial effects of the present invention are: 1. The present invention is designed to store dry material storage equipment for storing seawater modifiers and liquid storage equipment for storing natural organic solvents. The natural organic solvent is used to dissolve the seawater modifier and mix it with the seawater in the water cannon main pipeline, thereby enhancing the clustering of the seawater working medium, improving the water cannon range and the striking force at the end of the water column, and enhancing the use effect of the water cannon.

[0015] 2. The dry material storage equipment designed in the present invention for storing seawater modifiers can reduce pipeline resistance and improve the effect by mixing the seawater modifiers with seawater on the main pipeline.

[0016] 3. The dry material storage device of the present invention also stores dye powder and irritant powder. By adding dye, the target ship and personnel are dyed and marked, and the field of vision of the target ship's optoelectronic equipment, camera equipment, portholes, etc. is shielded; by adding irritant, the non-lethal denial effect on the target ship's personnel is enhanced.

[0017] 4. The present invention is also designed with an outboard discharge pipe to flush the pipe, thereby ensuring the normal operation of various functions of the water monitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.

[0019] Among them: 1-water cannon device; 2-electric valve; 3-water cannon pump; 4-sea valve; 5-sea valve box; 6-overboard valve; 7-dry material storage equipment; 8-proportional mixer; 9-liquid cabinet; 10-water tank; 11-pipeline static mixer; 12-screw pump; 13-filling pipeline; 14-main pipeline; 15-overboard 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 DESCRIPTION

[0020] In order to better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1 A multifunctional water cannon system shown includes a water cannon device 1, a main pipe 14 and a filling assembly; The water cannon device 1 is installed on the deck of the ship, and the water inlet of the water cannon device 1 is connected with the outlet end of the main pipe 14, the main pipe 14 extends from above the ship deck to below the deck, and the main pipe 14 is equipped with a water cannon pump 3. The inlet end of the main pipe 14 is provided with a sea valve 4, and the sea valve 4 is installed in the sea valve box 5; The filling assembly includes a filling pipeline 13, a dry material storage device 7 and a liquid storage device; 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; The dry material storage device 7 stores seawater modifier powder; The liquid storage device stores a natural organic solvent for dissolving seawater modifier powder.

[0022] In the present invention, the outlet end of the main pipeline 14 is connected to the water inlet of the water monitor device 1 through the electric valve 2.

[0023] In the present invention, the liquid storage device is connected to the filling pipeline 13 through a liquid adding pipeline, and 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, the seawater modifier powder entering the filling pipeline 13 downstream can be dissolved and then flow into the main pipeline 14.

[0024] Preferably, the dry material storage device 7 also stores irritant powder and colorant powder.

[0025] In the present 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 a plurality of 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, and the outlets of each storage tank of the dry material storage device 7 are respectively 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 turning on the switch of the storage tank, the powder in the storage tank can enter the filling pipeline 13 along the vertical pipeline 16 under the action of gravity; according to different situations, seawater modifier, irritant 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, and the liquid storage device is a liquid cabinet 9.

[0026] 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 the proportioning mixer 8; the pipeline connecting the filling pipeline 13 and the liquid storage device is located upstream of the proportioning mixer 8.

[0027] In the present invention, the installation height of the dry material storage device 7 is greater than the filling pipeline 13, and a spiral mechanical feeding mechanism is installed in the dry material storage device 7. The solid powder working medium in the storage tank of the dry material storage device 7 enters the proportioning mixer 8 by gravity and mechanical addition using the negative pressure behind 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.

[0028] Preferably, a water injection pipeline 17 is further provided on the connecting pipeline between the liquid storage device and the filling pipeline 13, and the end of the water injection pipeline 17 is connected to the water tank 10. After the irritant powder or dye powder in the dry material storage device 7 is filled, water is injected into the filling pipeline 13 through the water tank 10 and the water injection pipeline 17 to flush the irritant powder or dye powder into the main pipeline 14.

[0029] Specifically, when the seawater modifier powder in the material storage device 7 enters the proportioning mixer 8, the screw pump 12 draws the liquid working medium from the liquid storage device and carries it into the screw pump 12, and after the screw pump 12 increases the pressure, it enters the pipeline static mixer 11, and then enters the main pipeline 14 after premixing in the pipeline static mixer 11; when the irritant powder or colorant powder in the material storage device 7 enters the proportioning mixer 8, the screw pump 12 draws water from the water tank 10 and carries it into the screw pump 12, and after the screw pump 12 increases the pressure, it enters the pipeline static mixer 11, and then enters the main pipeline 14 after premixing in the pipeline static mixer 11.

[0030] In the present invention, the working fluid stored in the storage tank of the dry material storage device 7 includes seawater modifier powder, irritant powder, and colorant powder (each type of powder is separately packed in different storage tanks); wherein the seawater modifier powder is a natural polymer hydrogel; the irritant powder is natural capsaicin; and the colorant powder is a natural colorant, which is non-toxic to the human body.

[0031] Preferably, the natural polymer hydrogel can be selected from cellulose hydrogel, gelatin hydrogel, sodium alginate hydrogel. The dye powder is a natural dye, and the dye can be selected from polyphenol dyes, ketone dyes, and quinone dyes.

[0032] In the present 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 the 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 cabinet 9 is mixed with the seawater modifier powder to form a high-concentration solution, and the proportion of the seawater modifier in the high-concentration solution ranges from 20% to 30%; the high-concentration solution enters the water cannon main line 14, and mixes with the seawater working fluid in the main line 14, so as to enhance the seawater clustering and improve the range and terminal striking force of the water cannon.

[0033] Preferably, the water cannon system is further provided with 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 through a second connecting pipe 20, and the overboard discharge pipe 15 is connected to the main pipe 14 through a third connecting pipe 21. In the present invention, the overboard discharge pipe 15 is used for cleaning the pipe after using different powders.

[0034] In the present invention, valves are respectively arranged on the first connecting pipeline 19, the second connecting pipeline 20, the third connecting pipeline 21, the main pipeline 14 downstream of the third connecting pipeline interface, the water injection pipeline 17 and the liquid injection pipeline 18, and all of them can be electric valves ( Figure 1 All unmarked valves on the pipelines are electric valves).

[0035] The water cannon system of the present invention has the functions of drag reduction, enhancement, rejection and marking, which can be realized by switching the valve. 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 improving the range and terminal striking force of the water cannon on the existing basis; the rejection function refers to the ability to effectively deter specific targets or areas and prevent them from approaching or entering a certain range by spraying high-pressure water flow; marking refers to marking the target or specific area by spraying water flow with specific identification substances for easy identification, positioning and subsequent operations.

[0036] When it is necessary to effectively deter specific persons or vessels and prevent them from approaching or entering a certain area, a denial operation is performed. A method of using the water cannon system as described above to perform denial is as follows: Flush the pipeline and close the above valves after flushing is completed; The valves on the injection pipeline, the water injection pipeline 17 and the first connecting pipeline 19 are opened; the storage tank storing the irritant powder in the dry material storage device 7 is opened, and the irritant 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 irritant powder in the filling pipeline 13; the screw pump 12 sucks the mixed solution into the pipeline mixer for mixing, and then enters the main pipeline 14 to mix with seawater, and is sprayed out by the water cannon device 1 to carry out non-lethal denial of the target ship or personnel.

[0037] When a specific vessel or person needs to be color-coded, a marking operation is performed. A method for marking using the above water cannon system is as follows: Flush the pipeline and close all valves after flushing is completed; 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 device 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 sucks the solution into the pipeline mixer for mixing, and then enters the main pipeline 14 to mix with seawater, which is 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 block the field of view of the target ship's optoelectronic equipment, camera equipment, portholes, etc.

[0038] When it is necessary to increase the range of the water cannon, a drag reduction operation is performed. A method for reducing drag of a water cannon system, the method comprising: Flush the pipeline and close all valves after flushing is completed; 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 seawater modifier powder in the dry material storage device 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 filling pipeline 13 and mixes with the seawater modifier powder in the filling pipeline 13; the screw pump 12 sucks the solution into the pipeline mixer for mixing, and then enters the main pipeline 14 to mix with the seawater, and the mass concentration of the seawater modifier after mixing is less than 0.1%; the mixed solution is sprayed out by the water cannon device 1 to achieve pipeline drag reduction.

[0039] In the present invention, after the seawater modifier is mixed with seawater, a seawater modifier solution with a mass concentration of less than 0.1% is formed, and a layer of infiltration film is formed on the pipe wall during the flow process, which reduces the resistance of the water flow in the pipeline, thereby achieving pipeline resistance reduction. When it is necessary to strengthen the striking effect on a specific target, a strengthening operation is performed. A method for strengthening the terminal striking capability of a water cannon system, the method is: Flush the pipeline and close all valves after flushing is completed; The valves on the main pipeline 14, the water injection pipeline 17, the liquid injection pipeline 18 and the first connecting pipeline 19 are opened; the storage tank storing the seawater modifier powder in the dry material storage device 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 device enters the filling pipeline 13, and mixes with the seawater modifier powder in the filling 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 the 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 striking ability of the end section of the water column.

[0040] In the present invention, after the seawater modifier is mixed with seawater, a seawater modifier solution with a mass concentration of 0.3%-0.5% is formed, which forms a network structure inside the seawater, strengthens the hydrogen bonds and van der Waals forces between water molecules, can reduce the diffusion and atomization of the water column caused by the shear force of the air, and enhances the bundling of seawater, thereby improving the end-point striking ability of the water column.

[0041] In the present invention, the pipeline flushing method is as follows: the valves on the first connecting pipeline 19, the second connecting pipeline 20 and the third connecting pipeline 21 and the side valve of the discharge side are opened, and at the same time, the valve on the water injection pipeline 17 is opened, and the dry material storage device 7 and the liquid storage device and other valves are closed; the screw pump 12 draws water from the water tank 10 to flush the filling pipeline 13, and the flushed fluid is discharged through the discharge side pipeline 15.

[0042] In the present invention, the system controls the filling concentration by changing the mechanical feeding speed and the rotation speed of the screw pump 12 in the dry material storage device 7, calculates the required feeding amount of the solid powder working fluid per second according to the flow of the water cannon pump 3 and the set filling concentration, and then controls the feeding speed of the mechanical feeding actuator of the dry material storage device 7, and matches the preset screw pump 12 rotation speed according to the solubility characteristics of different working fluids.

[0043] In the present invention, the system realizes the switching of filling working fluid through the opening and closing of the filling components and the electric valves of the dry material storage equipment 7 tanks, and provides four functional instructions such as drag reduction, reinforcement, rejection, and marking; controls the opening and closing of the electric valves of the relevant working fluid storage tanks of the dry material storage equipment 7 according to the selected functional instructions, and opens the water tank 10 / liquid storage cabinet pipeline valve according to the selected functional instructions.

[0044] In the present invention, under abnormal working conditions, the filling assembly, dry material storage device 7 and related valves can be manually closed. The filling assembly is connected in parallel with the water cannon main line 14, and the failure of the filling assembly and dry material storage device 7 does not affect the operation of the water cannon device 1.

[0045] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0046] Finally, it should be noted that the above are only 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water cannon system, characterized in that: Includes water monitor device, main pipe and filling assembly; The water cannon device is installed on the deck of the ship, the water inlet of the water cannon device is connected with the outlet end of the main pipeline, the main pipeline extends from above the deck of the ship to below the deck, and a sea valve is arranged at the inlet end 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 a 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 stores a natural organic solvent for dissolving seawater modifier powder.

2. The water monitor system according to claim 1, characterized in that: The dry material storage device also stores irritant powder and colorant powder.

3. The water monitor system according to claim 2, characterized in that: A screw pump and a pipeline static mixer are sequentially arranged on the filling pipeline along the fluid flow direction; a vertical pipeline connecting the filling pipeline and the dry material storage device is located upstream of the screw pump, and the vertical pipeline is connected to the filling pipeline through a proportional mixer; a pipeline connecting the filling pipeline and the liquid storage device is located upstream of the proportional mixer; a water injection pipeline is also arranged on the connecting pipeline between the liquid storage device and the filling pipeline, and a water tank is connected to the end of the water injection pipeline.

4. The water monitor system according to claim 3, characterized in that: The seawater modifier is a natural polymer hydrogel, which can be selected from cellulose hydrogel, gelatin hydrogel and sodium alginate hydrogel.

5. The water monitor system according to claim 4, characterized in that: The dye can be selected from one of polyphenol dyes, ketone dyes and quinone dyes.

6. The water monitor system according to claim 3, characterized in that: The water cannon system is also provided with an overboard discharge pipe, the end of which is connected to an overboard discharge valve; the overboard discharge pipe is connected to the filling pipe via a second connecting pipe, and the overboard discharge pipe is connected to the main pipe via a third connecting pipe; valves are respectively arranged on the first connecting pipe, the second connecting pipe, the third connecting pipe, the main pipe downstream of the third connecting pipe interface, the water injection pipe and the liquid injection pipe.

7. A method for denial using the water cannon system as claimed in claim 6, the method comprising: Flush the pipeline and close the above valves after flushing is completed; The valves on the injection pipeline, water injection pipeline and first connecting pipeline are opened; the storage tank storing irritant powder in the dry material storage equipment is opened, and the irritant powder enters the proportioning mixer through the vertical pipeline; the fresh water in the water tank enters the filling pipeline and mixes with the irritant powder in the filling pipeline; the screw pump sucks the mixed solution into the pipeline mixer for mixing, and then enters the main pipeline to mix with seawater, and is sprayed out by the water cannon device to carry out non-lethal denial of the target ship or personnel.

8. A method for marking using the water cannon system as claimed in claim 6, characterized in that: The method is: Flush the pipeline and close all valves after flushing is completed; The valves on the main pipeline, the water injection pipeline and the first connecting pipeline are opened; the storage tank storing the dye powder in the dry material storage equipment is opened, and the dye powder enters the proportioning mixer through the vertical pipeline; the fresh water in the water tank enters the filling pipeline and mixes with the dye powder in the filling pipeline; the screw pump sucks the solution into the pipeline mixer for mixing, and then enters the main pipeline to mix with seawater, which is sprayed out by the water cannon device to mark the target ship or personnel, and the water curtain formed by the water cannon device is used to block the field of view of the target ship's optoelectronic equipment, camera equipment, portholes, etc.

9. A method for reducing drag of a water cannon system as claimed in claim 6, characterized in that: The method is: Flush the pipeline and close all valves after flushing is completed; The valves on the main pipeline, the water injection pipeline and the first connecting pipeline are opened; the storage tank storing the 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 fresh water in the water tank enters the filling pipeline and mixes with the seawater modifier powder in the filling pipeline; the screw pump sucks the solution into the pipeline mixer for mixing, and then enters the main pipeline to mix with seawater. The mass concentration of the seawater modifier after mixing is less than 0.1%; the mixed solution is sprayed out by the water cannon device to achieve pipeline resistance reduction.

10. A method for enhancing the terminal striking capability of a water cannon system as claimed in claim 6, characterized in that: The method is: Flush the pipeline and close all valves after flushing is completed; The valves on the main pipeline, water injection pipeline, liquid injection pipeline and the first connecting pipeline are opened; the storage tank storing the 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 filling pipeline and mixes with the seawater modifier powder in the filling pipeline to form a high-concentration solution; the screw pump sucks 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 striking ability of the end section of the water column.

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