CN113481954A

CN113481954A - System and method for cleaning floating and suspended matters in water areas of ship lift cage and lock head working door

Info

Publication number: CN113481954A
Application number: CN202110815069.XA
Authority: CN
Inventors: 陈冬元; 汤伟毕; 齐俊麟; 闫晓青; 金锋; 李然; 邹涛; 黄晓欢; 肖前; 周灿
Original assignee: Three Gorges Navigation Authority
Current assignee: Three Gorges Navigation Authority
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2021-10-08

Abstract

A system and a method for cleaning floating and suspended matters in a ship lift cabin and a lock head working door water area mainly comprise a water filling system, a first cleaning device and a second cleaning device; the water filling system is arranged on the end surface of the compartment head and is used for forming water splash to drive away floating objects and suspended objects; the first cleaning device comprises a catamaran structure, wherein a net bag is arranged in the middle of a bow of the catamaran structure; the two sides of the bow of the ship body are provided with a retraction mechanism, the rear end of the first dirt blocking belt is driven to retract through the retraction mechanism, and the front end of the first dirt blocking belt is connected with the guide ship; the second cleaning device comprises a second trash holding belt, and two ends of the second trash holding belt are connected with the guide ship; the second trash rack is arranged below the second trash rack; the haulage rope is located second trash rack bottom. The system and the method for cleaning floating and suspended matters in the water area of the ship lift cabin and the lock head working door provided by the invention have the advantages that the floating and suspended matter cleaning efficiency is improved, and the ship lift is safe and stable in operation.

Description

System and method for cleaning floating and suspended matters in water areas of ship lift cage and lock head working door

Technical Field

The invention relates to the technical field of cleaning of obstacles in a water area of a ship lift cabin, in particular to a system and a method for cleaning floating and suspended matters in the water area of the ship lift cabin and a lock head working door.

Background

Obstacles such as floating and suspended matters in water areas of ship lift cabins and lock head working doors can influence the operation safety of navigation ships and equipment of the ship lift and influence the navigation efficiency. Most of floating and suspended matters such as plant debris, household garbage, construction garbage and the like are greatly influenced by water flow and wind in water, when the floating and suspended matters appear in a ship lift chamber and a lock head working door water area, the floating and suspended matters can be gathered at the blocked boundary parts in the areas of a lock head working door and a ship chamber door along the directions of the water flow and the wind, and the ship chamber door and the lock head working door positioned at the head of the ship chamber are important operation equipment of the ship lift. When the ship lift lock head working door runs, the floater near the side water stop seat plate of the working door can cause the loose sealing between the side water stop of the working door and the water stop pressure plate, thereby causing the water leakage of the door body, and simultaneously, the damage of a water stop rubber can be caused to the harder floater, and the abnormal opening signal of the working door can be caused to the larger floater; the floater easily causes the blocking of the side guiding, side water stopping and bottom water stopping parts of the ship compartment door, and influences the running of the ship compartment door. The untimely cleaning of the floating and suspended matters can pollute the water quality of the navigation water area of the ship lift, destroy the external image of the ship lift and generate negative influence on passengers on the navigation passenger ship.

At present, it is known through statistics that: the water areas of the ship lift cabin and the lock head working door are floated, the maximum size of suspended matters is mostly less than 0.5m, some wood lengths are between 0.5m and 1.5m, and the ratio of obstacles is as follows: cabin door and near the lock head door: 90%, and other parts: 10 percent; at present, water area floating and suspended matters of the three gorges ship lift are mainly subjected to manual salvage cleaning in a floating cleaning ship mode, the existing floating cleaning ship is large in size, a ship body enters and exits the ship lift water area to occupy channel resources so as to influence navigation, the manual cleaning mode is low in efficiency, and potential safety hazards such as falling water exist. In the process of cleaning the floating objects, the cleaning is difficult for narrow areas near the cabin door and the working gate.

Disclosure of Invention

The invention aims to solve the technical problem of providing a system and a method for cleaning floating and suspended matters in a water area of a ship lift chamber and a lock head working door, so as to solve the problems in the background, improve the cleaning efficiency of the floating and suspended matters and ensure the safe and stable operation of the ship lift.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a system for cleaning floating and suspended matters in a water area of a ship lift cabin and a lock head working door comprises a water filling system, a first cleaning device and a second cleaning device;

the water filling system is arranged on the end surface of the chamber head and is used for forming water splash to water areas near the ship chamber door and the lock head working door so as to drive away floaters and suspended matters;

the first cleaning device comprises a ship body, a net bag, a retraction mechanism, a first trash rack, a guide ship and a first trash rack; the ship body is of a catamaran structure, and the net bag is positioned in the middle of the bow of the ship body; the collecting and releasing mechanisms are positioned on two sides of the bow of the ship body, the rear end of the first dirt blocking belt is driven to be collected and released through the collecting and releasing mechanisms, and the front end of the first dirt blocking belt is connected with the guide ship;

the second cleaning device comprises a second dirt blocking belt, a guide ship, a second dirt blocking net and a traction rope; two ends of the second trash rack are respectively connected with the guide ship; the second trash rack is arranged below the second trash rack; the haulage rope is located second trash rack bottom.

The water filling system comprises an air compressor, an electric control ball valve, a main pipeline, a manifold, a nozzle and a first control module; the main pipeline is fixedly arranged on the box deck and the end face through pipe clamps; the trunk line both ends import and the air compressor machine exit linkage and install automatically controlled ball valve on the trunk line, the trunk line is located one section equipartition in lower part and has a plurality of manifolds, and the nozzle is installed to every manifold front end.

The retraction mechanism comprises a motor, a box body, a gear set and a roller; the box body is arranged at the bow of the ship body, the two rollers are arranged in the hole diameter of the inner cavity of the box body, the gear set is arranged on an upper end shaft of the roller, the motor is arranged on the upper end surface of the box body, and the motor is connected with one of the rollers through a coupler.

The roller is uniformly provided with a plurality of bulges.

The front and the back of the bottom of the box body are of horn mouth structures.

The first trash rack belt and the second trash rack belt are identical in structure and respectively comprise buoyancy foam at the top, the cable is arranged in a center hole of the buoyancy foam, and a plurality of holes are formed in the middle area of the buoyancy foam; the bottom of the buoyancy foam is uniformly distributed with a plurality of connecting grooves, and the buoyancy foam is connected with the first trash rack or the second trash rack through the connecting grooves.

The bottom of the second trash rack is penetrated with a traction rope and a balance weight, and the top of the second trash rack is provided with a lifting hook.

The guide ship comprises a guide ship body, and the bow part of the guide ship body is provided with a circular arc-shaped electromagnet.

A method for cleaning floating and suspended matters in a ship chamber of a ship lift and a water area of a lock head working door,

step 1: the first cleaning device or the second cleaning device is hoisted to the water area of the ship chamber of the ship lift through the hoisting device;

step 2: when the ship compartment door or the lock head working door is in the opening process, the electric control ball valve in the water filling system is opened, the air compressor outputs compressed air through the main pipeline, the manifold and the nozzle in sequence, and water splash is formed in a water area near the ship compartment door or the lock head working door to drive away floaters and suspended matters; when the ship compartment door or the lock head working door is in an open state, the water filling system works intermittently, the ratio of the interval time to the working time is 1: 2-1: 5, and no floating objects or suspended matters exist in the water area of the ship compartment and the working door operation equipment;

step 3: aiming at cleaning floaters with the maximum size of less than or equal to 0.5m in a large-area water area, a first cleaning device is selected for cleaning operation, firstly, a ship body and a guide ship are operated to synchronously run to the floaters area, and a first trash belt is in the longest state; secondly, stopping the ship body, operating and guiding the ship to move to drive the first trash belt to open, and enclosing floaters to an area in the first trash belt; operating the guide ship again to move to drive the first trash rack to carry out folding operation, and enabling the guide ship to be adsorbed by the ship bow electromagnet of the guide ship body during folding; finally, operating the retraction mechanism to retract the first dirt blocking belt, pushing and gathering the floating objects into the net bag, and driving the first cleaning device to the lifting position;

step 4: aiming at cleaning floaters and suspended matters with the maximum size of more than 0.5m and less than or equal to 1.5m in a water area, a second cleaning device is selected for cleaning operation, firstly, the ship is guided to move to drive a second dirt blocking belt and a second dirt blocking net to open and move forwards, and the floaters and the suspended matters are surrounded to the second dirt blocking belt and the inner area of the second dirt blocking net; secondly, guiding the ship to move for folding operation; finally, the second cleaning device is driven to a lifting position, the bottom of the second trash rack is gathered towards the center by tightening the two ends of the traction rope, a closed net bag is formed, and floating and suspended matters are prevented from leaking out of the second trash rack;

step 5: for the first cleaning device, the net bag is lifted to the cabin deck through the lifting device, and the net bag is placed in the first cleaning device after the floaters are cleaned; aiming at the second cleaning device, the second cleaning device is integrally hoisted to the cabin deck through the hoisting device, and the second cleaning device is placed in the ship lift cabin water area after floating and suspended matters are cleaned;

step 6: and repeating the steps of Step 3-Step 5 until the floating and suspended matter cleaning operation is completed, hoisting the first cleaning device or the second cleaning device to the cabin deck, and placing the first cleaning device or the second cleaning device at a designated position.

The invention relates to a system and a method for cleaning floating and suspended matters in a water area of a ship lift cabin and a lock head working door, which have the following technical effects:

1) the water filling system can be arranged to realize the drifting and suspended matter driving away of the water areas near the lock head working door and the ship chamber door operation equipment, so that the safe and stable operation of the equipment is ensured.

2) When the cleaning operation is carried out through the first cleaning device and the second cleaning device, the ship cabin is lifted to the ship cabin water area through the lifting device, and after the cleaning operation is finished, the ship cabin is lifted to the ship cabin deck, so that the lifting operation is convenient and fast, and the ship navigation is not influenced.

3) The first cleaning device and the second cleaning device are small in size, the dirt blocking belt and the guide ship are matched to open and gather, operation is flexible, and cleaning operation in a large area can be achieved.

4) By arranging the catamaran structure, the net bag is arranged in the middle of the bow of the catamaran structure, and can be used for intensively storing final floating and suspended matters, so that the later-stage cleaning is facilitated; through setting up jack, first trash rack area, first trash rack net and guide ship, can be so that first trash rack area stretches out or opens, be favorable to forming the encirclement ring like this in earlier stage to float, the suspended solid assembles, and the later stage then will float, the suspended solid pushes away and gathers in the string bag, simple high-efficient.

5) The first trash belt and the second trash belt are processed through buoyancy foam, so that the first trash screen and the second trash screen can be unfolded, can be bent and freely hang into a water body to form the intercepting net, and floating and suspended matters can be effectively collected.

6) The guide ship capable of driving and attracting is adopted, and power and possibility are provided for unfolding and bending the first trash rack and the second trash rack.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 is a schematic structural view of a ship chamber.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

FIG. 3 is a schematic structural diagram of a first cleaning apparatus according to the present invention.

Fig. 4 is a schematic structural diagram of the first cleaning device of the present invention.

FIG. 5 is a schematic structural diagram of a second cleaning apparatus according to the present invention.

Fig. 6 is a schematic view of the structure at the hull of the present invention.

Fig. 7 is a partially enlarged schematic view of a portion B in fig. 6.

Fig. 8 is a partial structural view of the first dirt trapping belt according to the present invention.

Fig. 9 is a partial view of the first trash belt and the first trash rack of the present invention.

Fig. 10 is a schematic view of the structure of the guide ship of the present invention.

FIG. 11 is a schematic view of the second cleaning apparatus according to the present invention.

Fig. 12 is a schematic view of the working state of the hoisting device in the invention.

Detailed Description

As shown in fig. 1, the ship chamber door 3 and the lock working door 2 are ship lift navigation running equipment, and two lock head working doors 2 are arranged at the position of a chamber head 11 of the ship chamber 1, and the ship chamber door 3 is positioned in the chamber head 11.

A system for cleaning floating and suspended matters in a ship lift cabin and a lock head working door water area comprises a water filling system 4, a first cleaning device 5 and a second cleaning device 6. The water filling system 4 is arranged on the end surface of the compartment head 11 and is positioned in the gap between the lock head working door 2 and the compartment head 11. The water filling system 4 is used for forming water flowers in the water area near the ship chamber door 3 and the lock head working door 2 to drive away floating objects and suspended matters. The first cleaning device 5 is used for cleaning floaters in the water areas of the ship chamber 1 and the lock head working door 2, the second cleaning device 6 is used for cleaning floaters and suspended matters in the water areas of the ship chamber 1 and the lock head working door 2, the hoisting device 7 is located on a ship chamber deck 12, and the hoisting device 7 is used for hoisting the first cleaning device 5 and the second cleaning device 6.

As shown in fig. 2, the water charging system 4 includes an air compressor 41, an electric ball valve 42, a main pipe 43, a manifold 44, a nozzle 45, and a first control module 46. Electric control ball valves 42 are installed between inlets at two ends of the main pipeline 43 and an outlet of the air compressor 41, the main pipeline 43 is fixedly arranged on a deck and an end face of the box head 11 through pipe clamps, 11 manifolds 44 are uniformly distributed on the main pipeline 43 at the bottom, nozzles 45 are installed at the front ends of the manifolds 44, and the first control module 46 is used for controlling the opening time and duration of the electric control ball valves 42.

As shown in fig. 3 to 4, the first cleaning device 5 includes a hull 51, a net bag 52, a retraction mechanism 53, a first dirt blocking belt 54, a guide ship 55, and a first dirt blocking net 56. The ship body 51 is of a catamaran structure, the net bag 52 is located in the middle of the bow of the ship body 51, lifting lugs are arranged on the net bag 52 to facilitate lifting, the two sets of collecting and releasing mechanisms 53 are located on two sides of the bow of the ship body 51, the rear ends of the two sets of first dirt blocking belts 54 are respectively connected to the collecting and releasing mechanisms 53, and the front ends of the first dirt blocking belts 54 are fixed on a guide ship 55.

As shown in fig. 5, the second cleaning device 6 includes a second dirt-trapping belt 61, a guide boat 55, a second dirt-trapping net 62, a pulling rope 63 and hooks 64, two ends of the second dirt-trapping belt 61 are fixed on the guide boat 55, the three hooks 64 are uniformly distributed on the top of the second dirt-trapping belt 61, the second dirt-trapping net 62 is connected below the second dirt-trapping belt 61, and the pulling rope 63 is located at the bottom of the second dirt-trapping belt 61.

As shown in fig. 6-7, the pick-and-place mechanism 53 includes a motor 5301, a housing 5302, a gear set 5303, and rollers 5304, the housing 5302 is mounted at the stem of the ship body 51, the two rollers 5304 are mounted in the bore of the inner cavity of the housing 5302, the gear set 5303 is mounted on the upper end shaft of the rollers 5304, the motor 5301 is mounted on the upper end surface of the housing 5302, the motor 5301 is connected with one of the rollers 5304 through a coupling, a plurality of protrusions are uniformly distributed on the rollers 5304 for increasing friction, and the front and rear of the housing 5302 are of a bell mouth structure. When the pick-and-place mechanism 53 works, the motor 5301 drives the gear set 5303 to drive the two rollers 5304 to rotate relatively, and the rollers 5304 rotate forward and backward to drive the dirt blocking belt 54 to extend or retract.

As shown in fig. 8-9, the first and second dirt strips 54 and 61 are topped by buoyant foam 5401, the cable 5402 is disposed in a central hole of the buoyant foam 5401, and a plurality of holes 5403 are disposed in the middle area of the buoyant foam 5401 to reduce water flow resistance. The bottom of the buoyancy foam 5401 is uniformly provided with a plurality of connecting grooves, and the buoyancy foam 5401 is connected with the first trash rack 56 and the second trash rack 62 through the connecting grooves.

A traction rope 63 and a counterweight penetrate through the bottom of the second trash rack 62, and a lifting hook 64 is arranged at the top of the second trash rack 61 and used for lifting.

As shown in fig. 10, the guide ship 55 comprises a guide ship body 5501 and electromagnets 5502, wherein lifting lugs are arranged on the guide ship body 5501 to facilitate lifting, circular-arc electromagnets 5502 are arranged at the bow part of the guide ship body 5501, when two guide ship bodies 5501 are required to be connected, the guide ship body 5501 is controlled to drive a dirt blocking belt 54 to move so that the bow is closed, and the electromagnets 5502 are electrified so that the bow of the guide ship body 5501 is adsorbed together to form a closed area.

The first cleaning device 5 and the second cleaning device 6 are operated by remote control. The shore station control equipment is in two-way communication with the main control units in the first cleaning device 5 and the second cleaning device 6 in a wireless mode, the shore station control equipment comprises a handheld remote controller (model: windward-M12) and a movable flat intelligent device, the remote controller is used for controlling the movement of the ship body, the flat intelligent device is used for displaying working condition data and selective configuration of working parameters, and the remote controller controls the actions of advancing, retreating, steering, retraction, folding and the like of the trash rack.

The main control unit obtains signals of advancing, retreating, direction, retraction and folding of the trash rack and the like sent by the remote controllers in the first cleaning device 5 and the second cleaning device 6, and sends the signals to the executing mechanism after processing, so that remote control is realized.

The invention relates to a method for cleaning floating and suspended matters in a water area of a ship lift cabin and a lock head working door, which comprises the following steps:

step 1: the first cleaning device 5 or the second cleaning device 6 is hoisted to the ship lift cage 1 water area by the hoisting device 7.

Step 2: when the ship compartment door 3 or the lock head working door 2 is in the opening process, the electric control ball valve 42 in the water filling system 4 is opened, the air compressor 41 outputs compressed air sequentially through the main pipeline 43, the manifold 44 and the nozzle 45, and water flowers are formed in water areas near the ship compartment door 3 and the lock head working door 2 to drive away floaters and suspended matters; when the ship compartment door 3 or the lock head working door 2 is in an open state, the water filling system 4 works intermittently, the ratio of the interval time to the working time is 1: 2-1: 5, and floating objects and suspended matters are prevented from existing in the water areas of the ship compartment and the working door operation equipment.

Step 3: aiming at cleaning floaters (the maximum size is less than or equal to 0.5 m), a first cleaning device 5 is selected for cleaning operation, firstly, a ship body 51 and a guide ship 55 are operated to synchronously run to a floaters area, and a first dirt blocking belt 54 is in the longest state; secondly, the ship body 51 stops acting, the operation guide ship 55 moves to drive the first dirt blocking belt 54 to open, and floating objects are surrounded in the first dirt blocking belt 54; the guide ship 55 is operated again to move to drive the first dirt blocking belt 54 to carry out folding operation, and the guide ship body 5501 is positioned for adsorption of the bow electromagnet 5502 during folding; finally, the retraction mechanism 53 is operated to retract the first dirt blocking belt 54, the floating objects are pushed and gathered into the net bag 52, and the first cleaning device 5 runs to the lifting position.

Step 4: aiming at cleaning floaters and suspended matters with the maximum size of more than 0.5m and less than or equal to 1.5m in a water area, a second cleaning device 6 is selected for cleaning operation. Firstly, guiding the ship 55 to move to drive the second dirt blocking belt 61 and the second dirt blocking net 62 to open and move forwards, and enclosing floating and suspended matters into the second dirt blocking belt 61 and the second dirt blocking net 62; secondly, guiding the ship 55 to move for folding operation; and finally, the second cleaning device 6 runs to a lifting position, and the bottom of the second trash screen 62 is gathered towards the center by tightening the two ends of the traction rope 63 to form a closed net bag, so that floating and suspended matters are prevented from leaking out of the second trash screen 62.

Step 5: aiming at the first cleaning device 5, the net bag 52 is lifted to the ship chamber deck 12 through the lifting device 7, and the net bag 52 is placed in the first cleaning device 5 after the cleaning of the floating objects is finished; aiming at the second cleaning device 6, the second cleaning device 6 is integrally lifted to the cabin deck 12 through the lifting device 7, and the second cleaning device 6 is placed in the water area of the ship lift cabin 1 after the floating and suspended matters are cleaned.

Step 6: and repeating the steps of Step 3-Step 5 until the floating and suspended matter cleaning operation is completed, hoisting the first cleaning device 5 or the second cleaning device 6 to the cabin deck 12, and placing the ship at a designated position.

Claims

1. The utility model provides a ship lift cabin and lock head work door waters float, suspended solid clearance system which characterized in that: comprises a water filling system (4), a first cleaning device (5) and a second cleaning device (6);

the water filling system (4) is arranged on the end surface of the compartment head (11), and the water filling system (4) forms water splash to water areas near the ship compartment door (3) and the lock head working door (2) to drive away floaters and suspended matters;

the first cleaning device (5) comprises a ship body (51), a net bag (52), a collecting and releasing mechanism (53), a first trash rack (54), a guide ship (55) and a first trash rack (56); the ship body (51) is of a catamaran structure, and the net bag (52) is positioned in the middle of the bow of the ship body (51); the collecting and releasing mechanisms (53) are positioned on two sides of the bow of the ship body (51), the rear end of the first dirt blocking belt (54) is driven to collect and release through the collecting and releasing mechanisms (53), and the front end of the first dirt blocking belt (54) is connected with the guide ship (55);

the second cleaning device (6) comprises a second dirt blocking belt (61), a guide ship (55), a second dirt blocking net (62) and a traction rope (63); two ends of the second dirt blocking belt (61) are respectively connected with the guide ship (55); the second trash rack (62) is arranged below the second trash rack belt (61); the hauling rope (63) is positioned at the bottom of the second trash rack (62).

2. The system for cleaning floating and suspended matter in water area of ship lift cabin and lock head working door according to claim 1, characterized in that: the water filling system (4) comprises an air compressor (41), an electric control ball valve (42), a main pipeline (43), a manifold (44), a nozzle (45) and a first control module (46); the main pipeline (43) is fixedly arranged on a deck and an end face of the box head (11) through pipe clamps; the inlet of the two ends of the main pipeline (43) is connected with the outlet of the air compressor (41), an electric control ball valve (42) is installed on the main pipeline (43), the main pipeline (43) is located at one section of the lower portion and is evenly distributed with a plurality of manifolds (44), and a nozzle (45) is installed at the front end of each manifold (44).

3. The system for cleaning floating and suspended matter in water area of ship lift cabin and lock head working door according to claim 1, characterized in that: the retraction mechanism (53) comprises a motor (5301), a box body (5302), a gear set (5303) and a roller (5304); the box body (5302) is arranged at the bow of the ship body (51), the two rollers (5304) are arranged in the bore of the inner cavity of the box body (5302), the gear set (5303) is arranged on the upper end shaft of the rollers (5304), the motor (5301) is arranged on the upper end face of the box body (5302), and the motor (5301) is connected with one roller (5304) through a coupling.

4. The system for cleaning floating and suspended matter in water area of ship lift cabin and lock head working door of claim 3, characterized in that: a plurality of bulges are uniformly distributed on the roller (5304).

5. The system for cleaning floating and suspended matter in water area of ship lift cabin and lock head working door of claim 3, characterized in that: the front and the back of the bottom of the box body (5302) are of a bell mouth structure.

6. The system for cleaning floating and suspended matter in water area of ship lift cabin and lock head working door according to claim 1, characterized in that: the first dirt blocking tape (54) and the second dirt blocking tape (61) are identical in structure and respectively comprise top buoyancy foam (5401), cables (5402) are arranged in central holes of the buoyancy foam (5401), and a plurality of holes (5403) are arranged in the middle area of the buoyancy foam (5401); the bottom of the buoyancy foam (5401) is uniformly distributed with a plurality of connecting grooves, and the buoyancy foam (5401) is connected with the first trash rack (56) or the second trash rack (62) through the connecting grooves.

7. The system for cleaning floating and suspended matter in water area of ship lift cabin and lock head working door as claimed in claim 6, wherein: a traction rope (63) and a counterweight penetrate through the bottom of the second trash rack (62), and a lifting hook (64) is arranged at the top of the second trash rack belt (61).

8. The system for cleaning floating and suspended matter in water area of ship lift cabin and lock head working door according to claim 1, characterized in that: the guide ship (55) comprises a guide ship body (5501), and a bow part of the guide ship body (5501) is provided with an arc-shaped electromagnet (5502).

9. The system for cleaning floating and suspended matter in water area of ship lift cabin and lock head working door according to claim 1, characterized in that:

step 1: the first cleaning device (5) or the second cleaning device (6) is hoisted to the water area of the ship lift chamber (1) through the hoisting device (7);

step 2: when the cabin door (3) or the gate head working door (2) is in the opening process, the electric control ball valve (42) in the water filling system (4) is opened, the air compressor (41) outputs compressed air sequentially through the main pipe (43), the manifold (44) and the nozzle (45), and water splash is formed in water areas near the cabin door (3) and the gate head working door (2) to drive away floaters and suspended matters; when the ship compartment door (3) or the lock head working door (2) is in an open state, the water filling system (4) works intermittently, the ratio of the interval time to the working time is 1: 2-1: 5, and no floating objects or suspended matters exist in the water areas of the ship compartment and the working door operation equipment;

step 3: aiming at cleaning floaters with the maximum size of less than or equal to 0.5m in a large-area water area, a first cleaning device (5) is selected for cleaning operation, firstly, a ship body (51) and a guide ship (55) are operated to synchronously run to the floaters area, and a first dirt blocking belt (54) is in the longest state; secondly, the ship body (51) stops acting, the operation guide ship (55) moves to drive the first dirt blocking belt (54) to open, and floating objects are surrounded to the area in the first dirt blocking belt (54); the guide ship (55) is operated again to move to drive the first dirt blocking belt (54) to carry out folding operation, and the guide ship body (5501) is adsorbed by the bow electromagnet (5502) during folding; finally, operating a retraction mechanism (53) to retract the first dirt blocking belt (54) and push and gather the floating objects into the net bag (52), and driving the first cleaning device (5) to a lifting position;

step 4: aiming at cleaning floating objects and suspended objects with the maximum size of more than 0.5m and less than or equal to 1.5m in a water area, a second cleaning device (6) is selected for cleaning operation, firstly, a ship (55) is guided to move to drive a second dirt blocking belt (61) and a second dirt blocking net (62) to open and move forwards, and the floating objects and the suspended objects are surrounded to the areas in the second dirt blocking belt (61) and the second dirt blocking net (62); secondly, guiding the ship (55) to move for folding operation; finally, the second cleaning device (6) is driven to a lifting position, the bottom of the second trash rack (62) is gathered towards the center by tightening the two ends of the traction rope (63) to form a closed net bag, and floating and suspended matters are prevented from leaking out of the second trash rack (62);

step 5: aiming at the first cleaning device (5), the net bag (52) is lifted to a ship chamber deck through the lifting device (7), and the net bag (52) is placed in the first cleaning device (5) after the floaters are cleaned; aiming at the second cleaning device (6), the second cleaning device (6) is integrally lifted to a cabin deck through a lifting device, and the second cleaning device (6) is placed in the water area of the ship lift cabin (1) after the floating and suspended matters are cleaned;

step 6: and repeating the steps of Step 3-Step 5 until the floating and suspended matter cleaning operation is completed, hoisting the first cleaning device (5) or the second cleaning device (6) to the cabin deck (12), and placing the ship cabin deck at a designated position.