KR20180051339A - Apparatus and method of cleaning for underwater - Google Patents

Abstract

The present invention relates to an underwater cleaning apparatus and, more specifically, to an apparatus which cleans a water plant or the like attached to a lakebed while suppressing dust from the lakebed by using a propeller cutter moved by neutral buoyancy. The underwater cleaning apparatus includes a propeller and a neutral buoyancy device to maintain a constant underwater height of the propeller while removing underwater waste. The neutral buoyancy device prevents the propeller from directly coming in contact with an underwater bottom. The propeller cuts and separates the underwater waste or waste on the bottom while the propeller does not directly come in contact with the underwater bottom. Since the underwater cleaning apparatus uses neutral buoyancy, the propeller cleaning waste can cut, separate, and collect waste attached to the bottom without directly coming in contact with the bottom. Specifically, the lakebed can be cleaned without causing destruction of a natural ecosystem.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to an apparatus and method for cleaning an aquatic plant or the like attached to the bottom of a lake while suppressing dust from the bottom of the lake using a propeller cutter moving in a neutral buoyancy.

The lake is constructed, operated and managed for certain purposes. For example, a 1.5-m-deep lake with gravel on the cement floor is used as a marine park for so-called yachting, where young children can freely walk and paddle. In the operation and management of these marine parks, the problem is how to thoroughly clean benthic organisms and soil attached to the floor. When yachting is played, the landscape of the floor is also a factor of favorable condition. Therefore, it is necessary to clean the bottom of the lake with high-pressure water at the time of cleaning, and it is important to prevent the pollution caused by cleaning from spreading into the water. Since the present invention has been filed by the present applicant prior to the present invention, this is referred to as a first prior art.

On the other hand, the lake is also used as a sliding surface for fast-moving boats, such as cruise ships, water skiing, and jet skiing, which observe the surrounding landscape. The lake for this purpose will be described as a water park in the present invention. In the cleaning of these water parks, it is a task to cut water plants that grow up from the bottom of the lake to the water surface so that there is no disruption to the operation of the boats, such as boats, or the swimming of people. The following prior arts are known in the art.

1) Korean Patent Application No. 1020090064405 (Blue Line with Floating Gates); Conveyor-type conveyor-type cleaning line for cleaning oil or dirt floating on the water surface. Hereinafter, this technique will be referred to as a second prior art.

2) Korean Patent Application No. 1020110060880 (Underwater Cleaning Method for Simultaneously Removing Clay, Mud and Deposits of Artificial Lake, and Korean Patent Application No. 1020130131259 (Underwater Cleaning Robot)), while moving to the bottom of the water, A floor cleaning device for spraying and raising dirt through a propeller screw. Hereinafter, this will be referred to as a third prior art.

However, each of these prior arts has the following disadvantages.

The first prior art is appropriate when the lake is a cement floor and the gravel is applied thereon, but there is a problem in that it is not suitable for removing aquatic plants that are fixed on a floor made of pearl or earth. In other words, as the pressure of the water is raised as the gravel is lifted, the soil or pearl of the floor is digested together, and the problem of the new pollution water is scattered. This leads to the problem of producing turbidity in the water as fine dust is generated in the air due to scattered dust generated in the construction site. Therefore, high-pressure water spraying, which sprays and cleans water, is limited to certain uses in terms of natural ecology.

The second prior art is a cleaning device for cleaning oil or dirt floating on a water surface of a conveyor installed on a line to a certain portion of the water. However, the second prior art has a problem that it is not possible to remove the water plants attached to the floor.

The third prior art is an underwater submersible robot type cleaning device equipped with a propeller in a hopper, a water injection nozzle at the front part of the propeller, and a discharge pipe at the rear part of the propeller. However, this structure has limitations in collecting and attracting large aquatic plants as discharge pipes. For example, if a water plant that grows from a depth of 2m or more to a water surface is cut off and then pulled out as a discharge pipe, there is a problem that the discharge pipe occasionally clogs because there is a limit in breaking it down. In addition, since the third prior art per se is a structure for cleaning the floor surface, if adopted, a new problem occurs in that the contaminated water is generated on the floor surface (i.e., turbidity is generated in the water like fine dust in the air) do.

Therefore, a new idea of blocking pollutant generation from the floor by maintaining a height of a certain distance from the bottom while effectively recovering a few seconds is required.

The present invention is based on a contradiction solution concept that uses gravity as a controversial concept so that proper cleaning can be performed even if the roots of the aquatic plants attached to the floor are not digested.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an underwater cleaning apparatus and method for collecting underwater adherents and the like while maintaining a constant height from the bottom using a propeller cutter moving in a neutral buoyancy.

An underwater cleaning apparatus according to an embodiment of the present invention includes a propeller; And a neutral buoyancy device that maintains the water height of the propeller constant during the removal of dirt from the water. Here, the neutral buoyancy device prevents the propeller from directly touching the underwater floor, and the propeller cuts off the dirt in the water or the floor without touching the underwater floor.

An underwater cleaning apparatus according to another embodiment of the present invention includes a propeller; And a moving means installed at a rear end of the propeller for moving the dirt or water cut by the propeller into the water surface. Here, the propeller cuts off the dirt in the water or the floor without directly touching the bottom of the water.

According to another embodiment of the present invention, an underwater cleaning apparatus includes a propeller; And a neutral buoyancy device for controlling the propeller so that it does not directly contact the underwater floor. Here, the propeller cuts off the dirt in the water or the floor without touching the underwater floor, and is supplied with moving power from the ship so as to be horizontally or vertically movable in conjunction with the ship.

The method of cleaning underwater according to an embodiment of the present invention includes the steps of controlling buoyancy so that the propeller does not touch the underwater floor; Cutting the dirt in the water or the bottom of the propeller by the propeller while keeping the propeller at a constant height according to the buoyancy control; And collecting the incision-separated dirt or water.

According to the present invention, since the neutral buoyancy is used, the propeller for cleaning dirt can cut and separate the dirt adhering to the floor without directly touching the floor, and can clean the floor of the lake without causing destruction of the natural ecosystem It is effective.

Particularly, in a construction in which a cleaning tool such as a hopper and a propeller is mounted on a cleaning vessel to secure mobility during a cleaning operation, the neutral buoyancy device of the present invention can reduce the weight of the cleaning tool, There is an effect that there is no influence on the load or bias of the cleaning ship at all. That is, when the hopper and the propeller are mounted on the cleaning vessel without the function of neutral buoyancy, the cleaning vessel must be inclined by its weight or the bottom surface must be rolled by the wheels, thereby causing a danger of overturning of the hull or generation of turbidity. This has the effect of solving this problem.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 and Fig. 2 are a side sectional view and a top view, respectively, showing an embodiment of the present invention. Fig.
Figures 3 and 4 are enlarged views of the propeller of Figure 1;

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the present invention covers all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention, since the present invention is not intended to be limited to the specific embodiments. Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

1 to 4 are a side sectional view, a top view, and a partially enlarged view showing an embodiment of the present invention. 3 and 4 show a propeller-type cutter having the same basic structure, but the number of blades and the number of disk plates are shown differently for convenience, but they are practically the same.

According to one embodiment, the underwater cleaning apparatus of the present embodiment includes:

A propeller (1) for cutting off the soil at the bottom of the lake;

A discharge pump 2 for discharging at least one of dirt and water cut off by the propeller from the rear end of the propeller; And a conveyor (3) for conveying the dirt cut off from the rear end of the propeller above the water surface;

A neutral buoyancy device (4) for controlling the propeller and the conveyor to maintain the elevation position in the water;

The neutral buoyancy device (4) separates and discharges the dirt on the bottom of the lake without the propeller (1) touching the bottom surface of the lake directly.

Here, dirt is a term that includes benthic organisms such as aquatic plants rising from the bottom of a lake. Therefore, a propeller that cuts off dirt on the bottom of a lake means a propeller-type cutter (cutter) that cuts off a stem of a water plant, etc., climbed from the bottom of the lake at an appropriate height and separates it from the bottom.

The propeller-type cutter (cutter) may have a structure as shown in FIG. 3, for example. More specifically, the propeller-type cutter has a blade 5-1, 5-2, 5-3, 5-4, 5-5 that rotates by rotating the disk plate 5 by using the blade shown in FIG. Consists of.

The blade plates 55-1, 5-2, 5-3, 5-4, and 5-5 are configured to connect between the disk plate 5 and the disk plate 5, The circular arrangement of the disk plate 5 can be arranged in a balanced manner at, for example, about 60 degrees. That is, neighboring blades can be arranged in a staggered fashion without being located on the same line.

It is preferable that the direction of rotation is a direction in which the water is directed downward from above the water (8), and the rotational force is preferably a configuration using the hydraulic motor (6).

Referring again to FIG. 3, reference numeral 9-1 denotes a gap between the disc plate 5 and the rotary shaft, and 9-2 denotes an axis of the propeller 1 driven by the hydraulic motor 6. That is, the shaft of the propeller 1 is engaged with the rotary shaft of the hydraulic motor 6, and as a result, the propeller 1 is rotated as the rotary shaft of the hydraulic motor 6 rotates.

On the other hand, the discharge pump 2 and the conveyor 3 may be referred to as moving means in that they move the dirt or water above the water surface.

According to another embodiment, a hopper 7 may be provided at the rear of the propeller 1 so as to confine the dirt protruding from the blades to be supplied to the discharge pump 2 or the conveyor 3.

The dirt can be finely crushed if the positions of the blades are made different from the center of the disk plate 5. The dirty dust can be collected by discharging it to the water surface only by the discharge pump 2 without a conveyor as shown in FIG. It is possible.

The discharge pump discharging the dirt and water from the rear end of the propeller through the propeller to the water surface is such that after cutting a stem of a few seconds, the contaminated water mixed with the water is sucked into the pump to collect water out of the water The term "

At this time, the rear end of the piping for treatment after the water has been removed from the water, that is, the pipe 2-1 connected to the discharge pump 2, It is preferable to configure the water to circulate back to the lake. This recirculation of water is to reduce the waste of excess water from the lake.

The conveyor for conveying the dirt separated from the rear end of the propeller to the water surface means that when a water aquarium or the like is cut off but its volume is too large to be sucked by the discharge pump 2, (2-2).

A neutral buoyancy device for controlling the elevation of the propeller so that the elevation of the propeller can be maintained at a fixed position in the water irrespective of whether the depth of the propeller is deep or low. As a result, the generation of unnecessary muddy water at the bottom of the lake is prevented, Damage to the blade, which is damaged by bumping into the floor, can be minimized.

Here, the neutral buoyancy refers to maintaining a constant height in the water irrespective of the depth of water or the weight of the soil, and the height of the water is maintained at a constant height from the floor or maintained at a constant depth from the water. It can be operated in one.

As a specific buoyancy control technique of the neutral buoyancy device, the buoyancy can be controlled by varying the volume of air dropped in the water, that is, the volume of the air in the air chamber where water and air are mixed. Here, the air pressure supplied to the air cylinder 4 can be procured from the operation of the compressor (not shown) provided on the water surface, the operation of the solenoid-type air valve, and the control device for controlling the solenoid valve.

In the case of a neutral buoyancy device that controls the buoyancy by the amount of air supplied to the airway, it is necessary to control the phenomenon that the volume of the air changes according to the water pressure of the water height. In other words, although the buoyancy does not work properly at a deep water depth only by injecting a little air pressure, once the water rises, the buoyancy increases exponentially due to the inverse proportion of the hydraulic pressure and air pressure even without additional air injection Therefore, at the beginning of the buoyancy control, when a certain amount of air is over-injected (when it is desired to rise) or when it is over-discharged (when it is desired to descend) It is preferable to perform the stepwise hunting control. In the present invention, this is defined as " a configuration in which the height of the propeller is constantly and stably maintained by hunting control of air supply / discharge during buoyancy control ".

According to another embodiment, the neutral buoyancy device can be achieved by controlling the height with a rope and winch interlocked with a cleaning vessel floating on the surface of the water or a water surface V as an alternative method of controlling buoyancy, Can be interlocked with the sensor for measuring the temperature.

At this time, a configuration for sensing the state of change of the water depth and controlling the air valve or the rope of the winch can be achieved through the ultrasonic sensor, electronic control means and / or the counterweight sensor and motor control means not shown.

When using an ultrasonic sensor, measure the distance from the floor toward the floor when maintaining the neutral buoyancy device at a constant height from the floor, and measure the depth from the water surface toward the water surface in the opposite direction when maintaining a constant depth from the water surface .

In other words, the neutral buoyancy device 4 of the above-described principle allows the propeller 1 to separate and discharge the dirt on the bottom of the lake without directly touching the bottom surface of the lake.

Here, the propeller 1 is horizontally or vertically supplied with moving power so that the propeller 1 can be moved while moving from one place to another by sliding with a sliding structure 20, such as a winch, Such a neutral buoyancy device can obtain a characteristic effect even in the interlocking structure of the power.

In other words, if there is no neutral buoyancy device, the ship 10 may have safety problems such as the inclination of the ship's center depending on the weight of the propeller, the hopper, the conveyor device and the amount of collected dirt. However, The problem of safety of the operation of the ship 10 is solved.

As a reference, the compressor for air supply maintains a steady weight in terms of gravity.

Meanwhile, the conveyor 3 and the discharge pump 2 may be configured to be interlocked with the neutral buoyancy device 4 so as to maintain a proper height from the bottom of the lake together with the propeller.

In the above, we have looked at from the device aspect and will be discussed in the following way.

The underwater cleaning method using an underwater cleaning device includes the steps of controlling the buoyancy so that the propeller 1 does not touch the underwater floor and that the propeller 1 is kept in water or in the state where the propeller 1 is maintained at a certain height, Separating the dirt in the underwater floor, and collecting the cut-off dirt or water.

In addition, the underwater cleaning method may further include a step of filtering the collected dirt or water using a filter cloth 2-2. This stand, the cut-off dirt or water, can be moved over the surface of the water by the discharge pump 2 or the conveyor 3.

In addition, the above-mentioned underwater cleaning method may further include a step of horizontally or vertically moving the propeller 1 in conjunction with the sliding structure 20. Here, the cutting and separation of the dirt may be performed while the propeller 1 is moved and fixed.

Fig. 2 is a configuration in which the conveyor 3 is omitted in the configuration shown in Fig. 1 and the contaminated water is collected only by the discharge pump 2. Fig. The present invention shown in Fig. 2 can play an effective role when a few seconds are not largely grown, and can be installed selectively with the configuration of Fig.

FIG. 3 is an enlarged view of the propeller of FIG. 1, and a detailed description thereof will be omitted.

In Figs. 1, 2 and 3, reference numeral 10 denotes a hull of a ship for cleaning line navigation, and 30 denotes a crane for loading collected dirt or the like on the land.

It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the spirit and scope of the invention as defined by the appended claims. Should be regarded as belonging to the following claims.

Propellers (1)
Pumps drainage (2)
Conveyors (3)
Neutral buoyancy device (4);
Disk plate 5,
The blades 5-1, 5-2, 5-3,
The direction of rotation of the blades (8)
Hopper (7)
Pipes connected to the discharge pump (2-1)
(2-2)

Claims (19)

prop; And
And a neutral buoyancy device that maintains the water height of the propeller constant during removal of water from the water,
Wherein the neutral buoyancy device does not directly contact the propeller with the underwater floor, and the propeller cuts off the dirt in the water or the floor without touching the underwater floor. The method according to claim 1,
A discharge pump installed at a rear end of the propeller for discharging dirt or water cut by the propeller into the water surface; And
And a conveyor installed at a rear end of the propeller for conveying the dirt separated by the propeller to the water surface,
Wherein the conveyor conveys dirt having a large volume to be sucked by the discharge pump onto the water surface. 3. The method of claim 2,
A drain pump installed at a rear end of the discharge pump or the conveyor system to filter the discharge pump and the dirt moved from the conveyor; And
Further comprising: a hopper which collects the dirt separated by the propeller and provides the discharged pump or the conveyor. The underwater cleaning apparatus according to claim 1, wherein the propeller is supplied with moving power from the ship so as to be horizontally movable in conjunction with the ship of the watercraft. The underwater cleaning apparatus according to claim 1, wherein the neutral buoyancy device controls buoyancy through air injection using a compressor. [Claim 6] The apparatus of claim 5, wherein the neutral buoyancy device is configured to increase or decrease the height of the propeller by increasing or decreasing the air pressure when the propeller reaches a desired position after excessively injecting or discharging air to raise or lower the propeller, Wherein the water cleaning device is provided with a water cleaning device. The underwater cleaning apparatus according to claim 1, wherein the neutral buoyancy device is interlocked with a water surface vessel or a water surface V to constantly control the height of the water of the propeller. The method according to claim 1,
Further comprising a sensor for measuring a change in water depth,
Wherein the neutral buoyancy device operates to form a neutral buoyancy at a height automatically set according to the measurement result. 2. The propeller according to claim 1,
A plurality of disk plates; And
And blades connected between the disc plates,
Wherein the neighboring blades are arranged in a staggered arrangement without being arranged on the same line. prop; And
And a moving means installed at a rear end of the propeller for moving dirt or water cut by the propeller on the water surface,
Wherein the propeller cuts off the dirt in the water or the floor without directly contacting the bottom of the water. 11. The apparatus according to claim 10,
A discharge pump installed at a rear end of the propeller for discharging dirt or water cut by the propeller into the water surface; And
And a conveyor installed at a rear end of the propeller for conveying the dirt cut by the propeller on the water surface,
Wherein the conveyor conveys dirt having a large volume to be sucked by the discharge pump onto the water surface. 11. The method of claim 10,
Further comprising a neutral buoyancy device that maintains the water height of the propeller constant during removal of water dirt,
Wherein the neutral buoyancy device prevents the propeller from directly contacting the underwater floor. 13. The underwater cleaning apparatus according to claim 12, wherein the neutral buoyancy device controls buoyancy through air injection using a compressor. 11. The propulsion device according to claim 10,
A plurality of disk plates; And
And blades connected between the disc plates,
Wherein the neighboring blades are arranged in a staggered arrangement without being arranged on the same line. prop; And
And a neutral buoyancy device for controlling the propeller not to directly contact the underwater floor,
Wherein the propeller is provided with moving power from the ship so that it can be horizontally or vertically moved in conjunction with the vessel while cutting off the dirt in the water or the floor without touching the underwater floor, . 16. The underwater cleaning apparatus according to claim 15, wherein the propeller moves in conjunction with the sliding structure, and removes the dirt while being fixed at a specific position when the dirt is removed. Controlling the buoyancy so that the propeller does not touch the underwater floor;
Cutting the dirt in the water or the bottom of the propeller by the propeller while keeping the propeller at a constant height according to the buoyancy control; And
And collecting the cut-off dirt or water. 18. The method of claim 17,
Further comprising filtering the collected soil or water,
Wherein the cut-away dirt or water is moved over the water surface by a discharge pump or a conveyor. 18. The method of claim 17,
Further comprising moving the propeller horizontally or vertically,
Wherein the cutting and separating of the dirt is performed while the propeller is moved and fixed.

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