JP3806761B2 - Air motor-driven underwater work machine and method thereof, and water bottom purification apparatus and method using the same - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention provides a device that can travel underwater such as the seabed by an air motor and a flow rate and pressure of compressed air that drives the air motor by adjusting the pressure from a ship or the like on the water, and after driving the air motor Compressed air that has a mechanism to stir and cultivate underwater soil that is also driven by an air motor, and keeps the pressure inside the aircraft higher than the external water pressure by exhausting compressed air, and also has a mechanism for stirring and tilling underwater soil driven by an air motor The apparatus relates to an apparatus for purifying the bottom soil and water quality by increasing the amount of dissolved oxygen in the bottom soil and water by aeration and aeration of the exhaust gas in the water or the bottom soil.
[0002]
[Prior art]
In recent years, due to changes in the economic environment and natural environment, deep water in the sea, water quality in closed water areas such as lakes, and deterioration of bottom soil have become problems, but as a method to improve this, stirring and tilling the soil It is known that so-called aeration in which air is blown into water or soil is effective.
[0003]
In a place to be dried, such as a tidal flat, the soil is stirred and cultivated with a cultivator or the like, and aeration is performed in the water with various aeration devices. In addition, it is also carried out on a small scale to tow a bowl-like thing by a ship and till the bottom of the water. However, both can only be done within a very short distance from the coastal land, but there is an anaerobic basin at the bottom of the deep water offshore, and organic floating mud accumulates, causing environmental degradation. ing.
[0004]
Work machines that can run on the bottom of relatively deep water with such poor oxygen and floating mud accumulation problems have been conventionally driven by electricity, hydraulics, etc. The impact on the environment is significant.
[0005]
In addition, in order to operate it unmanned, electronic devices are used for remote control from the mother ship etc., and the mechanism is complicated, and since these are vulnerable to water, an increasingly complex structure for waterproofing is required. Therefore, compared to the required capacity, the ship becomes a large and complicated thing, and the ship to be used as a mother ship also requires a large thing, which requires a huge amount of money.
[0006]
[Problems to be solved by the invention]
In order to improve the water quality and bottom environment of the closed water area such as the sea bottom, it is necessary to plow, stir and aerate the bottom of the water. There is also a risk that the towed ship may be damaged in some cases because the work cannot be continued. Moreover, it becomes difficult to tow and control a bowl-shaped object when the water depth becomes deep, and if it is going to use the conventional working machine which self-propels the bottom of a water, it will be large and will require enormous expense. However, even though it is a closed water area, most are vast areas, and since it is necessary to continuously plow, agitate, and aerate, the equipment is economical and does not require special technology, There is a need for a method. In addition, since it is a means of environmental improvement, it is also important not to make the environment worsen by any chance.
The present invention has been made in view of such circumstances, and is a small and lightweight submarine working machine that travels on the bottom of the water by itself and can be easily remotely controlled, and improves the bottom environment by plowing, stirring, and aerating the bottom of the water. It is an object of the present invention to provide an underwater work machine driven by an air motor and a method thereof, and a water bottom purification apparatus and method using the same.
[0007]
[Means for Solving the Problems]
An underwater work machine according to the first invention that meets the above-mentioned object is a work machine that travels by driving a driving wheel such as an endless track that can be propelled even on a soft ground on the bottom of the water, using an air motor that is rotated by compressed air as a prime mover. Compressed air is sent by a hose or the like from a compressor installed in a ship on the water. At this time, it is remotely controlled by adjusting the pressure and flow rate of the compressed air, and the exhaust of the compressed air after driving the air motor is discharged into the aircraft body, keeping the atmospheric pressure inside the aircraft higher than the external water pressure, Prevents inundation from bearings, etc., and makes these structures simple. The underwater work machine according to the second invention is the underwater work machine according to the first invention, which is also equipped with a stirring and tiller that is rotated by an air motor, and drives these air motors to increase the air pressure inside the machine body. The exhaust of compressed air is diffused and discharged in the vicinity of the agitator, and the bottom soil is agitated, cultivated and aerated, and the particle size of the sedimentary soil is increased by agitation with the lower soil. It is possible to improve the bottom environment by activating underwater and soil organisms.
[0008]
And the air motor driven underwater working machine and method therefor according to the third invention and the water bottom purifying apparatus and method using the same are the air motor driven underwater working machine and method therefor according to the first and second inventions. In addition, in the water bottom purification apparatus and method using the same, at least two air motors are used as driving motors for traveling, and the left and right driving wheels are individually rotated to perform straight advancement, turning, and the like. At this time, it is possible to remotely control the machine by increasing or decreasing the pressure and flow rate of compressed air sent by a hose from a ship on the water, etc., like a conventional underwater working machine using hydraulic pressure and electricity. There is no need for complicated and fragile mechanisms, and only air is lost even in the event of damage, and the environment is not polluted. In addition, because of its simple structure, it can be reduced in size and weight, and is economical, and it can be operated only by operating a valve or the like, so no special technique is required. In addition, because of these characteristics, it can also be used for various surveys and work performed underwater.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
FIG. 1 is an overall view of an embodiment of the apparatus of the present invention, wherein 1 is an underwater work machine main body of the apparatus of the present invention, 2 is a mother ship, and an existing ship such as a work ship or a fishing boat is used. A general-purpose air compressor 4 is installed in this ship, compressed air is supplied to the underwater working machine by 3 air hoses, and the underwater working machine is suspended to the seabed by 5 suspension wires, and lifted to avoid foreign matter on the seabed or Collect on mother ship. 10 indicates the seabed, and 11 is the water surface.
[0010]
FIG. 2 is a side view of an underwater work machine main body according to an embodiment of the present invention. The underwater work machine main body is suspended from the mother ship by the 5 suspension wires from the mother ship to the seabed. In this embodiment, three hoses are bundled so that compressed air can be individually supplied to the left and right pairs for driving and a total of three for driving and agitating device. The supplied compressed air rotates the air motor No. 12, and the exhaust air makes the inner pressure inside the waterproof case 13 higher than the water pressure of the external sea water, so that the sea water infiltrates into the waterproof case from the gap of the drive bearing etc. In addition, this exhaust passes through the aeration tube 9 and is ejected as fine bubbles near the tiller / stirring device 8 and aeration of the bottom soil after tilling and stirring is carried out by rotation of the tiller / stirring device 8. The air compressor installed on the mother ship and the air motor of this device are existing general-purpose ones and will not be described.
[0011]
The rotation of the 12 air motor is transmitted to the 6 drive wheels, and the 7 endless track belt so-called caterpillar is rotated, so that the apparatus runs on the bottom soil. This caterpillar's ground contact surface is equipped with scraping blades at equal intervals so that thrust can be obtained even on the soft ground of the bottom, and this scraping blade is made of metal such as stainless steel, depending on the conditions of the bottom of the ground. It is preferable to have a replaceable structure such as a bolt stop so that it can be changed.
[0012]
FIG. 3 is a plan view of an underwater work machine main body according to one embodiment of the apparatus of the present invention.
[0013]
15 is an air hose connection port, and the air hoses bundled in three are branched and connected here, and the compressed air supplied from the mother ship passes through the 14 compressed air pipes and is supplied to each individual air motor. At this time, the apparatus is controlled by adjusting the amount of compressed air supplied to each air motor with a valve or the like on the mother ship, that is, for example, compressed air is sent only to the right air motor, If the supply to the air is cut off, only the right caterpillar will rotate and drive, and the machine will turn left. Similarly, if the supply amount to the left and right air motors is slightly different, it will turn slowly and completely cut off the supply. If it does, this device stops. The same applies to the rotation / stop control of the tilling / stirring device.
[0014]
Also, loosen the hanging wire as appropriate, run this device until it is tight, and repeat the reciprocating or spiral running to cultivate and aerate the bottom soil with a tilling stirrer to improve the bottom environment. At this time, when the tension of the suspension wire and a part of the air bubbles exhausted from the apparatus reach the water surface, the current position of the apparatus at the bottom of the water can be visually confirmed and confirmed from the mother ship.
[0015]
After plowing, stirring, and aerating a certain area in this way, this device is lifted by a mother ship with a hanger wire, moved to an adjacent point, suspended, and the above work is repeated to improve the environment of a wide range of underwater soil. Do. Also, if the device cannot run due to foreign matter such as rocks at the bottom of the water, it is also lifted to avoid it.
[0016]
In addition, a variety of underwater work is possible by adding observation, measurement equipment or other work equipment to the apparatus.
[0017]
【The invention's effect】
As described above, the underwater working machine driven by the air motor of the present invention and the method thereof, and the water bottom purification apparatus and method using the same are driven by compressed air, so that they can be lost even in the event of damage. Is air, does not pollute the underwater environment, and can be controlled by operating simple devices such as valves from the mother ship. In addition, this compressed air enhances the waterproof function with a simple structure. Is exhausted as fine bubbles, and together with the tillage / stirring device, the bottom soil environment is improved efficiently. Moreover, it can be used as an underwater work machine for a wide range of applications due to its simple, lightweight and economical structure.
[Brief description of the drawings]
FIG. 1 is an overall view showing an underwater work machine driven by an air motor, a method thereof, a water bottom purification apparatus using the same, and a method of implementing the method. Example 1
FIG. 2 is a side view of a main body showing an underwater work machine driven by an air motor, a method thereof, a water bottom purification apparatus using the same, and a method of implementing the method. Example 1
FIG. 3 is a plan view of a main body showing an underwater work machine driven by an air motor, a method thereof, a water bottom purification apparatus using the same, and a method of implementing the method. Example 1
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Underwater work machine body 2 Mother ship 3 Air hose 4 Air compressor 5 Suspension wire 6 Drive wheel 7 Endless track (caterpillar)
8 Plowing / stirring device 9 Aeration pipe 10 Seabed 11 Water surface 12 Air motor 13 Waterproof case 14 Pressed air piping 15 Air hose connection port

Claims (3)

Exhaust of compressed air after driving the air motor by driving it remotely by adjusting the flow rate and pressure of the compressed air that drives the air motor with a device that can run underwater such as the sea floor with an air motor The underwater work machine is characterized by preventing the intrusion into the airframe by keeping the pressure inside the airframe higher than the external water pressure. 2. An underwater working machine according to claim 1, comprising a mechanism for stirring and tilling the bottom ground such as the seabed, and at the same time, exhausting compressed air after driving an air motor into the underwater or bottom soil. Air motor driven underwater working machine and method thereof, and water bottom purification apparatus and method using the same 3. The underwater working machine according to claim 1 or 2, wherein a plurality of air motors are provided as prime movers for traveling, tilling, etc., and compressed air is sent through a hose or the like from a ship or base on the water to drive the motor. Air motor driven underwater work machine, its method, and the bottom of the water using the same, by controlling the flow rate and pressure of each air motor individually by controlling or shutting off each air motor Purification device and method

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