Hull Cleaning System

Abstract

The present invention provides a hull cleaning system including a cleaning robot that cleans the exterior of a ship's hull and introduces contaminants removed from the exterior of the hull during the cleaning process into the interior, and a purification device that is connected to the cleaning robot via a hose member and filters and purifies seawater that flows in together with the contaminants from the cleaning robot via the hose member.

Description

[Technical field]

[0001] The present invention relates to a ship hull cleaning system, and more particularly to a ship hull cleaning system that cleans an exterior surface of a ship hull using a cleaning robot and collects and purifies contaminants generated during the cleaning process. [Background technology]

[0002] Generally, ships are operated with the lower part of the hull submerged in seawater, so various foreign objects such as pollutants and various aquatic organisms such as moss and barnacles may adhere to the bottom and sides that are located underwater.

[0003] As such, various foreign objects and aquatic organisms that attach to the hull not only mar the appearance of the ship, but also act as resistance when the ship is sailing, slowing down the ship's speed and significantly increasing the ship's fuel consumption. For this reason, it is extremely important to periodically clean the various foreign objects and aquatic organisms that have attached to the hull.

[0004] Conventionally, cleaning of the exterior of a ship has typically been done by divers entering the ship themselves to remove foreign objects and underwater organisms from the exterior of the ship. However, this method has problems in that the working environment is poor and physically exhausting, it is difficult and time-consuming to thoroughly clean the exterior of the ship, and cleaning is impossible in areas with strong currents.

[0005] In particular, in the case of large ships, the increased amount of cleaning work requires divers to spend longer time underwater, which poses many dangers to divers, and cleaning work must be carried out depending on the diver's field of vision, resulting in a significant decrease in cleaning quality on the deep bottom of the ship.

[0006] Therefore, recently, there has been a trend toward the widespread use of ship bottom cleaning robots that run while attached to the exterior surface of the ship and perform cleaning work using brushes and the like.

[0007] However, when using a conventional ship bottom cleaning robot, various foreign objects and aquatic organisms that fall off the exterior of the hull during the cleaning process flow into the water, causing marine pollution. In particular, in the case of ships that have been overseas, foreign aquatic organisms may return to the water with foreign aquatic organisms attached to the exterior of the hull, causing disruption to the surrounding marine ecosystem due to the foreign aquatic organisms that flow into the water during the cleaning process. Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention provides a hull cleaning system, specifically, a hull cleaning system that can easily clean the exterior of a hull using a cleaning robot, and can effectively prevent marine environmental pollution by collecting foreign objects and aquatic organisms that fall from the exterior of the hull during the cleaning process, filtering and purifying them, and discharging purified seawater.

[0009] The technical problems to be achieved by the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those having ordinary skill in the art to which the present invention pertains from the description below. [Means for solving the problem]

[0010] In order to solve the above-mentioned problems, the present invention provides a hull cleaning system including a cleaning robot that cleans the exterior of a ship's hull and introduces contaminants removed from the exterior of the hull during the cleaning process into the interior, and a purification device that is connected to the cleaning robot via a hose member and filters and purifies seawater that flows in together with the contaminants from the cleaning robot via the hose member.

[0011] In addition, a hull cleaning system is provided for the cleaning robot, which includes a robot body section, a traveling member that is provided at the bottom of the robot body section and travels while attached to the outer surface of the hull via magnetic force, a cleaning member that cleans the outer surface of the hull and causes contaminants removed from the outer surface of the hull to flow into the robot body section, and an internal filter section that is detachably provided on the robot body section and removes and collects contaminants in seawater that is sucked into the interior of the robot body section.

[0012] In addition, the purification device provides a hull cleaning system including a seawater suction pump for sucking in seawater flowing in from the cleaning robot through a hose member, a primary filter unit that removes and collects contaminants contained in the inflowing seawater and separates and discharges them, and a secondary filter unit that performs a second filtration and purification process on the seawater filtered by the primary filter unit.

[0013] In addition, the present invention provides a hull cleaning system further including a seawater supply tank that temporarily stores seawater filtered by the primary filter unit and supplies the filtered seawater to the secondary filter unit, a filtration material supply tank that selectively supplies filtration material to the secondary filter unit, a contaminated water storage tank that collects and stores contaminated water generated during the seawater filtering and purification process by the secondary filter unit, and a purified water storage tank that stores the purified water purified by the secondary filter unit and selectively discharges the purified water into the sea.

[0014] Also, the present invention provides a hull cleaning system, further including a pump member that is detachably provided on the hose member and sucks in seawater flowing from the cleaning robot into the hose member and transports it to the purification device.

[0015] Also provided is a hull cleaning system further including an external filter unit that is detachably provided on the hose member and removes and collects contaminants in the seawater that flows from the cleaning robot into the hose member.

[0016] The present invention also provides a hull cleaning system that further includes a management server that is linked to the cleaning robot and the purification device and controls the operations of the cleaning robot and the purification device, the cleaning robot includes a camera unit that captures an image of the exterior condition of the hull and transmits the image captured by the camera unit to the management server, and the management server analyzes the image of the exterior condition of the hull transmitted from the cleaning robot and selectively operates an internal filter unit of the cleaning robot and the purification device according to the degree of contamination of the exterior of the hull.

[0017] In addition, the cleaning robot includes a bypass line that causes seawater drawn into the interior to bypass the internal filter unit and flow into the hose member, and the management server analyzes an image of the exterior condition of the hull, and if the degree of contamination of the exterior of the hull is equal to or lower than a preset reference value, operates the cleaning robot to filter the drawn-in seawater through the internal filter unit, and if the degree of contamination of the exterior of the hull is equal to or higher than a preset reference value, operates the cleaning robot to cause the drawn-in seawater to flow into a purification device through the bypass line and the hose member, and to be filtered and purified through the purification device. Effect of the Invention

[0018] The hull cleaning system according to an embodiment of the present invention sucks in contaminants such as foreign objects and aquatic organisms that fall from the exterior of the hull during the process of cleaning the exterior of the hull using a cleaning robot, and quickly filters and purifies them using a purification device, while at the same time discharging purified seawater to the outside, thereby effectively preventing marine environmental pollution.

[0019] In addition, by analyzing the image of the exterior condition of the hull captured by the cleaning robot, and depending on the degree of contamination of the exterior of the hull, selectively using only the internal filter part of the cleaning robot or an external purification device, the contaminants sucked in together with the seawater by the cleaning robot can be filtered and the seawater can be purified, thereby increasing the work efficiency of cleaning the hull.

[0020] The effects obtained by the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those having ordinary skill in the art to which the present invention pertains from the description below. [Brief description of the drawings]

[0021] [Figure 1] 1 shows the configuration of a hull cleaning system according to a first embodiment of the present invention. [Diagram 2] 1 shows the configuration of a cleaning robot according to a first embodiment of the present invention. [Diagram 3] 1 shows the configuration of a purification device according to a first embodiment of the present invention. [Figure 4] 1 shows the configuration of a hull cleaning system according to a second embodiment of the present invention. [Diagram 5] 1 shows the configuration of a hull cleaning system according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0023] The detailed description disclosed below, along with the accompanying drawings, are intended to describe exemplary embodiments of the invention and are not intended to represent the only embodiments in which the invention may be practiced.

[0024] In the drawings, in order to clearly explain the present invention, parts that are not relevant to the description may be omitted, and the same reference numerals may be used throughout the specification for the same or similar components.

[0025] In the embodiments of the present invention, the terms "or", "at least one", and the like can refer to one of the words listed together or a combination of two or more.

[0026] FIG. 1 shows the configuration of a hull cleaning system 100 according to a first embodiment of the present invention, FIG. 2 shows the configuration of a cleaning robot 110 according to a first embodiment of the present invention, and FIG. 3 shows the configuration of a purification device 120 according to a first embodiment of the present invention.

[0027] 1-3, a vessel cleaning system 100 according to one embodiment of the present invention may include a cleaning robot 110 and a purification device 120.

[0028] The cleaning robot 110 travels while attached to the outer surface of the ship's hull, and can clean contaminants such as foreign objects and aquatic organisms attached to the outer surface of the hull.

[0029] The cleaning robot 110 can be moved to the outer surface of a ship to be cleaned via a launching and recovery device (not shown) on a ship, a port, a wharf, or the like.

[0030] In addition, the cleaning robot 110 can clean the outer surface of the hull using a cleaning member 113 such as a brush while moving while attached to the outer surface of the hull submerged in water via a magnetic moving member 112.

[0031] Specifically, the cleaning robot 110 of this embodiment may include a robot body portion 111 , a running member 112 , a cleaning member 113 , and an internal filter portion 114 .

[0032] Here, the robot body part 111 constitutes the exterior of the cleaning robot 110, and during the cleaning process using the cleaning member 113, seawater containing foreign objects and aquatic organisms that fall from the outer surface of the hull can flow into the inside.

[0033] In addition, the running member 112 is provided at the bottom of the robot body 111 and is formed of wheels or caterpillars including magnets, so that the running member 112 can run while attached to the outer surface of the hull through magnetic force.

[0034] The cleaning members 113 may also include brushes that rotate to clean the exterior surface of the hull, or high-pressure water jet nozzles that spray high-temperature or room-temperature water at high pressure to clean the exterior surface of the hull.

[0035] In other words, various contaminants and other foreign matter, as well as various aquatic organisms such as water moss and barnacles, can adhere to the bottom and sides of the hull that are located underwater, but these can be easily removed using brush-type or water jet-type cleaning members.

[0036] At this time, foreign objects and aquatic organisms that are removed from the outer surface of the hull by the cleaning members 113 can be sucked into the robot body section 111 by the pump P provided in the internal filter section 114 .

[0037] In addition, the internal filter unit 114 is provided inside the robot body unit 111 and can remove and collect foreign objects and aquatic organisms contained in seawater flowing into the robot body unit 111.

[0038] Here, the entire outer circumferential surface of the internal filter portion 114 may be formed of a filter mesh, and a collection space for collecting foreign objects and aquatic organisms may be formed therein.

[0039] Furthermore, the internal filter section 114 may be provided integrally with a pump P that draws seawater flowing into the robot body section 111 into the recovery space.

[0040] The internal filter unit 114 is detachable from the robot body unit 111 and can be replaced when contaminants such as foreign objects and aquatic organisms accumulate in the internal filter unit 114.

[0041] Meanwhile, the cleaning robot 110 may be connected to the purification device 120 via a hose member 130, so that seawater filtered by the internal filter unit 114 of the cleaning robot 110 can flow into the purification device 120 via the hose member 130.

[0042] The purification device 120 can purify seawater that flows in from the cleaning robot 110 via the hose member 130 .

[0043] The purification device 120 may be formed as a container module and installed on a ship or on land. When installed on land, the purification device 120 may be movably installed.

[0044] As an example, the purification device 120 may be configured as a vehicle-mounted type, or may be provided in a container with wheels attached to the bottom, so as to be movable on land.

[0045] As another example, the purification device 120 may be provided so as to float on the sea. In this case, the purification device 120 may be provided with a propulsion device (not shown) so as to be self-propelled on the sea.

[0046] 1 and 3, the purification device 120 of this embodiment may include a seawater suction pump 121, a primary filter section 122, storage tank sections 125, 126, 127, and 128, a secondary filter section 123, and a controller .

[0047] Here, the seawater suction pump 121 is connected to the cleaning robot 110 via a hose member 130 and can suck in seawater discharged from the cleaning robot 110 via the hose member 130 and transport it to the purification device 120 side.

[0048] At this time, seawater sucked by the seawater suction pump 121 can flow into the primary filter unit 122, and the primary filter unit 122 can collect residual foreign matter and aquatic organisms contained in the seawater and separately discharge them.

[0049] In other words, the internal filter section 114 of the cleaning robot 110 can collect large foreign objects and large aquatic organisms such as seaweed and barnacles, and small foreign objects and microscopic aquatic organisms that pass through the internal filter section 114 of the cleaning robot 110 and flow in along with seawater via the hose member 130 can be filtered and separated and discharged by the primary filter section 122 of the purification device 120.

[0050] For example, the primary filter unit 122 can remove and collect foreign matter and aquatic organisms having a size of 500 μm or more through a fine filter net, and can separate and discharge the collected foreign matter and aquatic organisms.

[0051] In addition, the seawater filtered by the primary filter unit 122 is stored in the seawater storage tank 125 of the storage tank units 125, 126, 127, and 128, and the seawater stored in the seawater storage tank 125 flows into the secondary filter unit 123 to be subjected to secondary filtration and purification processing.

[0052] The storage tank sections 125 , 126 , 127 , 128 may include a seawater storage tank 125 , a filter media supply tank 126 , a contaminated water storage tank 127 , and a purified water storage tank 128 .

[0053] Here, the seawater storage tank 125 stores the seawater filtered by the primary filter section 122 and at the same time supplies the filtered seawater to the secondary filter section 123, and the filtration material supply tank 126 can supply filtration material to the secondary filter section 123.

[0054] Furthermore, the contaminated water storage tank 127 can store the contaminated water discharged from the secondary filter unit 123 , and the purified water storage tank 128 can store the purified water purified by the secondary filter unit 123 .

[0055] At this time, the purified water stored in the purified water storage tank 128 may be discharged into the sea, and may also be used to wash the secondary filter unit 123.

[0056] In addition, the secondary filter unit 123 can selectively use a filter of 10 μm to 90 μm to perform secondary filtration and purification of the seawater filtered by the primary filter unit 122 .

[0057] At this time, the secondary filter unit 123 can perform secondary filtration of seawater using only a filter, or can selectively perform secondary filtration and purification of seawater using a filtration material supplied from a filtration material supply tank 126 .

[0058] As an example, the filtration material may include diatomaceous earth, activated carbon, cellulose, etc., and when the filtration material is used, the filtration speed is slower than when seawater is filtered using only a filter, but the filtration performance can be increased.

[0059] In addition, the controller 124 can control the operation of the seawater suction pump 121, the primary filter unit 122, the storage tank units 125, 126, 127, and 128, and the secondary filter unit 123 to suck in seawater flowing in from the cleaning robot 110 and purify it.

[0060] Specifically, the controller 124 may be formed as a control box so as to be operable by a user, and may perform a seawater purification process according to previously input control commands.

[0061] As an example, the controller 124 can operate the seawater suction pump 121 to cause seawater discharged from the cleaning robot 110 along with foreign objects and aquatic organisms to flow into the primary filter unit 122 via the hose member 130, so that the primary filter unit 122 can remove and separate the foreign objects and aquatic organisms from the flowing seawater and discharge the filtered seawater into the seawater storage tank 125.

[0062] Next, the controller 124 operates an internal pump (not shown) to flow seawater stored in the seawater storage tank 125 into the secondary filter unit 123, thereby performing secondary filtration and purification processing through the secondary filter unit 123. The purified seawater is stored in the purified water storage tank 128, and the contaminated water generated during the purification processing process can be stored in the contaminated water storage tank 127.

[0063] In addition, the secondary filter unit 123 can be automatically cleaned by operating the controller 124, and the multiple filters provided in the secondary filter unit 123 can be cleaned by a backwashing method using purified water stored in the purified water storage tank 128.

[0064] In this way, the hull cleaning system 100 according to this embodiment can suck in foreign matter and aquatic organisms that fall from the outer surface of the hull during the process of cleaning the outer surface of the hull using the cleaning robot 110 and collect them through the internal filter unit 114. Microscopic foreign matter and microscopic aquatic organisms that pass through the internal filter unit 114 and are discharged together with the seawater can be flowed into the external purification device 120 through the hose member 130, and the seawater can be purified by filtering the microscopic foreign matter and microscopic aquatic organisms in the seawater through the primary and secondary filter units 122, 123, thereby discharging the purified seawater.

[0065] This not only makes it easy to clean the exterior of the ship, but also quickly filters and collects foreign objects and aquatic organisms discharged during the cleaning process, while purifying seawater before discharging it, effectively preventing marine environmental pollution.

[0066] Meanwhile, FIG. 4 shows the configuration of a hull cleaning system 200 according to a second embodiment of the present invention.

[0067] Referring to FIG. 4, the hull cleaning system 200 according to the second embodiment of the present invention detects the external condition of the hull and selectively uses the internal filter unit 214 of the cleaning robot 210 and the external purification device 220 according to the detected external condition of the hull.

[0068] Specifically, the cleaning robot 210 of this embodiment can photograph the external condition of the hull using the camera unit 212 provided on the robot body unit 211 and transmit the photographed image to the management server 240.

[0069] Here, the management server 240 provided in this embodiment can control the operations of the cleaning robot 210 and the purification device 220 by linking with them via wired or wireless communication.

[0070] The management server 240 analyzes the image of the outer surface condition of the hull transmitted from the cleaning robot 210, and selects a purification mode for treating the contaminants attached to the outer surface of the hull when cleaning the outer surface of the hull using the cleaning robot 210 according to the degree of contamination of the outer surface of the hull, and selectively uses the internal filter unit 214 of the cleaning robot 210 and the external purification device 220.

[0071] As an example, the management server 240 is set with a reference value for the degree of contamination of the exterior of the hull, and analyzes the image of the exterior condition of the hull transmitted from the cleaning robot 210. If the degree of contamination of the exterior of the hull is below the previously set reference value, the management server 240 can filter and collect the contaminants generated during the cleaning process of the hull using only the internal filter unit 214 of the cleaning robot 210.

[0072] At this time, the cleaning robot 210 of this embodiment may be applied with an internal filter unit 214 capable of removing minute foreign objects and minute aquatic organisms.

[0073] In addition, if the degree of contamination of the exterior of the hull is equal to or greater than a preset standard value, the contaminants sucked in by the cleaning robot 210 during the cleaning process of the exterior of the hull can be transferred to an external purification device 220 for treatment.

[0074] For example, when the degree of fouling on the exterior surface of the hull is severe, it is difficult to treat the contaminants using only the internal filter unit 214 of the cleaning robot 210, so in this case, an external purification device 220 can be used.

[0075] That is, the cleaning robot 210 may be connected to a hose member 230 capable of transferring contaminants to an external purification device 220, and a bypass line 213 may be provided inside the cleaning robot 210 to allow contaminants sucked into the cleaning robot 210 during the hull cleaning process to bypass the internal filter unit 214 and flow into the hose member 230.

[0076] Here, the bypass line 213 is provided with a control valve 215, and when the internal filter portion 214 of the cleaning robot 210 is used, the bypass line 213 is closed via the control valve 215, and the bypass line 213 can be opened via the control valve 215 only when contaminants are allowed to flow into the hose member 230 via the bypass line 213.

[0077] As a result, contaminants such as foreign objects and aquatic organisms that flow into the hose member 230 via the bypass line 213 of the cleaning robot 210 can be transported together with the seawater to the purification device 220, and in the purification device 220, the primary and secondary filter sections 222, 223 are used to filter out the contaminants in the seawater and purify the seawater, thereby discharging the purified seawater.

[0078] In addition, a pump member 250 may be detachably provided on a hose member 230 that connects the cleaning robot 210 and the purification device 220 .

[0079] In other words, since a load may be generated when sucking up seawater and pollutants discharged from the cleaning robot 210 into the hose member 230 for a long period of time using only the seawater suction pump 221 provided in the purification device 220, in this embodiment, an additional pump member (not shown) may be attached to the hose member 230.

[0080] In this manner, the hull cleaning system 200 according to the present embodiment analyzes the image of the exterior condition of the hull captured by the cleaning robot 210, and if the degree of contamination of the exterior of the hull is below a preset standard value, it can filter and collect the contaminants generated during the cleaning process of the hull using only the internal filter unit 214 of the cleaning robot 210, and if the degree of contamination of the exterior of the hull is above a preset standard value, it can transfer the contaminants sucked in by the cleaning robot 210 to an external purification device 220 for treatment.

[0081] Also, as an example, in the process of cleaning the exterior of a hull using the hull cleaning system 200 of this embodiment, the degree of contamination of the exterior of the hull can be analyzed in advance, and when the degree of contamination is below a preset standard value, the cleaning robot 210 can be used independently to filter and collect contaminants through the internal filter unit 214, and only when the degree of contamination is above a preset standard value, the purification device 220 can be connected to the cleaning robot 210 and used.

[0082] Meanwhile, FIG. 5 shows the configuration of a hull cleaning system 300 according to a third embodiment of the present invention.

[0083] Referring to FIG. 5(a), the hull cleaning system 300 of this embodiment can use only an external purification device 320 without providing an internal filter unit in the cleaning robot 310.

[0084] Specifically, in this embodiment, contaminants sucked in during the cleaning process of the exterior surface of the hull using the cleaning robot 310 can be transferred to the purification device 320 through the hose member 330 .

[0085] In this case, a pump member 350 may be provided on the hose member 330, and the contaminants sucked into the cleaning robot 310 can be made to flow into the hose member 330 using the pump member 350, and simultaneously transported to the purification device 320 via the hose member 330.

[0086] Also, referring to FIG. 5(b), in this embodiment, an external filter unit 360 is detachably provided on a hose member 330, and contaminants in the seawater flowing in from the cleaning robot 310 through the hose member 330 are removed through the external filter unit 360, and small-particle contaminants that pass through the external filter unit 360 can be allowed to flow into the purification device 320 through the hose member 330.

[0087] Here, the external filter section 360 has a collection space made of a filter mesh inside, which can collect large foreign objects and large underwater organisms such as seaweed and barnacles, and allow the filtered seawater to flow into the hose member 330.

[0088] Meanwhile, the purification device 320 purifies the seawater by filtering contaminants such as foreign objects and aquatic organisms that flow in along with the seawater through the hose member 330 using the primary and secondary filter sections 322, 323, and can discharge purified seawater.

[0089] As described above, the hull cleaning system 100, 200, 300 according to the embodiment of the present invention sucks in contaminants such as foreign objects and aquatic organisms that fall from the outer surface of the hull in the process of cleaning the outer surface of the hull using the cleaning robot 110, 210, 310, and quickly filters and purifies them using the purification device 120, 220, 320, while discharging the purified seawater to the outside, thereby effectively preventing marine environmental pollution.

[0090] In addition, by analyzing the image of the outer surface condition of the hull captured by the cleaning robot 210, and depending on the degree of contamination of the outer surface of the hull, the internal filter unit 214 of the cleaning robot 210 alone or the external purification device 220 can be selectively used to filter contaminants sucked in together with seawater by the cleaning robot 210 and purify the seawater, thereby increasing the work efficiency of cleaning the hull.

[0091] The embodiments of the present invention disclosed in this specification and the drawings are merely specific examples presented to easily explain the technical contents of the present invention and to aid in the understanding of the present invention, and are not intended to limit the scope of the present invention.

[0092] Therefore, the scope of the present invention should be interpreted as including all modifications and variations derived based on the technical concept of the present invention in addition to the embodiments disclosed herein.

Claims

1. a cleaning robot for cleaning an exterior surface of a ship and introducing contaminants removed from the exterior surface of the ship during the cleaning process into the interior of the ship; A hull cleaning system including a purification device connected to the cleaning robot via a hose member, for filtering and purifying seawater flowing in together with contaminants from the cleaning robot via the hose member.

2. The cleaning robot includes: A robot body part, a traveling member provided at a lower portion of the robot body and traveling while attached to an outer surface of a hull via a magnetic force; a cleaning member for cleaning the exterior surface of the vessel and directing contaminants removed from the exterior surface into the robot body portion; 2. The hull cleaning system according to claim 1, further comprising: an internal filter unit that is detachably provided on the robot body unit and that removes and collects contaminants in the seawater that is sucked into the interior of the robot body unit.

3. The purification device includes: a seawater suction pump for sucking in seawater flowing in from the cleaning robot through the hose member; a primary filter unit that removes and collects contaminants contained in the inflowing seawater and separates and discharges the contaminants; The hull cleaning system according to claim 1 , further comprising: a secondary filter unit that performs secondary filtration and purification of the seawater filtered by the primary filter unit.

4. a seawater supply tank that temporarily stores the seawater filtered by the primary filter unit and supplies the filtered seawater to the secondary filter unit; a filter material supply tank for selectively supplying filter material to the secondary filter unit; a contaminated water storage tank for collecting and storing contaminated water generated during the seawater filtering and purification process by the secondary filter unit; The hull cleaning system according to claim 3 , further comprising a purified water storage tank for storing purified water purified by the secondary filter unit and selectively discharging the purified water into the sea.

5. The hull cleaning system according to claim 1 , further comprising a pump member that is detachably provided on the hose member and that sucks in seawater flowing from the cleaning robot into the hose member and transports the seawater to the purification device.

6. The hull cleaning system according to claim 5 , further comprising an external filter unit removably provided on the hose member, which removes and collects contaminants in the seawater flowing from the cleaning robot into the hose member.

7. The cleaning robot and the cleaning device further include a management server that controls operations of the cleaning robot and the cleaning device in cooperation with the cleaning robot and the cleaning device; The cleaning robot includes a camera unit that captures an image of an external surface of a hull, and transmits the image captured by the camera unit to the management server; 3. The hull cleaning system of claim 2, wherein the management server analyzes the image of the exterior condition of the hull transmitted from the cleaning robot, and selectively operates the internal filter unit of the cleaning robot and the purification device according to the degree of contamination of the exterior of the hull.

8. The cleaning robot includes: a bypass line for allowing seawater drawn into the inside to bypass the internal filter portion and flow into the hose member, The management server includes: Analyzing an image of the exterior condition of the hull, and filtering the sucked seawater through an internal filter unit of the cleaning robot when the degree of contamination of the exterior of the hull is equal to or lower than a preset reference value; 8. The hull cleaning system according to claim 7, wherein, when the degree of contamination of the exterior surface of the hull is equal to or greater than a preset reference value, the intake seawater is caused to flow into the purification device via the bypass line and the hose member, and is filtered and purified through the purification device.

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