JPH0153113B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention always takes in floating objects up to a preset depth even when the water surface is in a wave state, and calms the movement of the taken-in floating objects. The present invention relates to a water floating object collection device that suctions and collects floating objects in an orderly and efficient manner.

Floating substances such as spilled oil, industrial waste liquid, or harmful microorganisms in water bodies such as oceans, ports, lakes, and rivers are
It causes various forms of pollution such as environmental destruction, deterioration of water quality, and loss of marine resources. Much of the pollution in water bodies is caused by various types of floating objects, but technology to eliminate floating objects in water areas has not yet been established, and it is difficult to prevent water pollution from occurring due to various types of floating objects. Establishing a technology to quickly, safely and reliably recover floating objects already generated in water bodies is an urgent issue these days.

In the past, various devices have been proposed for collecting floating objects on water, but many of them have complex structures that increase production costs, are large and inconvenient to transport, and have limited functionality and performance for collecting floating objects on water. However, there have been many difficulties in putting it into practical use, such as insufficient control or complicated operations, resulting in inconveniences in use.

Therefore, the present invention has a simple structure and can be manufactured in a small size, making it highly versatile.Functionally, even when the water surface is in a wave state, floating objects on the water can always be detected up to a preset depth. The main purpose of this invention is to obtain a water floating object recovery device that can suck up and collect floating objects in an orderly and efficient manner while calming the agitation of the taken-in floating objects. be.

Embodiments of the present invention will be described below with reference to the drawings. First, FIGS. 1 to 4 show a floating object recovery vessel 1 on which a floating object recovery device 14 according to an embodiment of the present invention is installed. has been done. A compartment 3 for stabilizing buoyancy is formed along the peripheral wall of the main body 2 of the floating object recovery vessel 1, excluding the front part. There are also a pair of floats 4 on the left and right sides of the
4' is detachably attached. The pivot portion 5 provided along the front edge of the submerged portion of the main body 2 includes a bottom wall 8 whose width becomes gradually narrower from the front edge to the rear edge, and a pair of left and right side walls 9, 9'. Left and right side walls 9,
A coarse floating object removal net 1 stretched between the front edge of 9'
0, a wave shock mitigation cylinder 11 extending upward from the center of the bottom wall 8 and penetrating in the vertical direction, and a water-floating matter coagulation accelerator dispersion tank attached to the top of the wave shock mitigation cylinder 11. 11', and a pair of side walls 9,
The rear end edge of the bottom wall 8 of the water intake device 7 is pivotally supported, and the water intake device 7 includes a water-floating solidification accelerator dispersion nozzle 11'' disposed between the upper parts of the bottom wall 8 and the left and right pairs. At least a portion of the side walls 9, 9' are formed of a buoyant material, and due to the buoyant action of the buoyant material, the front edge of the bottom wall 8 is always kept at a constant depth in response to the wave motion of the water surface. As a result, water and floating objects can always be allowed to flow into the water intake device 7 up to a certain depth.
A buoyancy adjustment weight W for finely adjusting the buoyancy is attached to the upper part of the front end of the left and right side walls 9, 9', and by adjusting the weight of this buoyancy adjustment weight W, the bottom wall 8 The depth of the front edge can be changed as necessary. bottom wall 8
A backflow prevention plate 8' is formed on the upper surface side of the front edge of the bottom wall 8 and extends rearward from the front edge of the bottom wall 8 with a smooth curved surface. This prevents the water and floating objects that have flowed into the water intake device 7 from easily flowing backward and flowing out to the front of the water intake device 7. Further, an adjustable tilting limiting device 6 is attached to the upper part of the front end side of the main body 2, and this tilting limiting device 6 is connected to the water intake device 7.
By abutting the upper part of the rear end of the water intake device 7,
The swinging movement around the pivot 5 is limited so that it does not extend over an extremely large angular range.

In the main body 2, between the front edge of the flow dividing plate 12 that slopes downward from the front edge to the rear edge and the bottom wall of the main body 2, a flow straightening device 13 made of a large number of flow straightening plates is disposed. At the same time, above the flow dividing plate 12, a water floating object collection device 14 of the present invention is installed above the main body 2.
is attached to. The front end edge of a guide plate 12' is connected to the rear end edge of the flow dividing plate 12, and the water flowing between the guide plate 12' and the bottom wall of the main body 2 opens at the bottom left and right of the main body 2. Through the pair of water intake openings 15, 15', the water distribution plate 1
The deep water directly above the guide plate 12' flowing into the back side of the
After flowing down through the guide plate 12', the water passes through the water intake openings 15, 15', and is sucked and pressurized by a pair of left and right pressurized water pumps 16, 16', respectively. These pair of pressurized water pumps 16,1
The water pressurized by 6' is supplied to each pressurized water pump 16,
It is ejected into the outside water from a pair of propulsion nozzles 17, 17' arranged above the nozzle 16' so as to operate in the outside water. Each of the propulsion nozzles 17, 17' can be turned independently in a horizontal plane, and is operated by a control device (not shown) to generate a forward thrust and a direction change thrust within a certain angular range. It is becoming possible to do this. Adjustment tubes 17a and 17a' are detachably fitted into each of the propulsion nozzles 17 and 17' so that the inner diameter thereof can be adjusted.

As the floating object collection vessel 1 moves forward, large floating objects such as wood and empty cans are first removed by the large floating object removal net 10, and water and floating objects other than the large floating objects are removed by the water intake device 7. Then, it flows into the main body 2. At this time, if the floating matter on the water is melted in the upper layer water in a state that is difficult to separate from the water, if necessary, the suspended matter on the water can be sprayed from the spray nozzle 11'' of the spraying tank 11' for the solidification accelerator of the floating matter on the water. Material setting accelerator spray tank 1
1' Spray the floating matter coagulation accelerator toward the water surface. Among the water and water floating substances that have flowed into the main body 2, some of the water in the deep layer passes through the rectifier 13,
The remaining part of the water passes through the rear part of the flow dividing plate 12 and is sucked by the pressurized water pumps 16 and 16', respectively, and is ejected from the propulsion nozzles 17 and 17' to generate thrust, but it flows into the main body 2. Among the water and floating objects, the floating objects in the surface layer are taken in by the floating object recovery device 14, and then passed through the fixed suction pipe 33 and suction pipe 18 of the floating object recovery device 14.
It is suctioned and pressurized by a pump 19 driven by a prime mover 20, and is pumped through a transport pipe 21 and a joint 22 toward a mother ship or a water-based floating matter collection tank on land.

The water floating object collection device 14 will be explained in more detail below. 5 to 7, the pivot portion 30 provided along the front edge of the submerged portion of the main body 23 of the water floating object recovery device 14 has a bottom that gradually becomes narrower from the front edge to the rear edge. A floating matter sorting device 2 having a wall 27 and a pair of left and right side walls 28, 28' that cooperate with the bottom wall 27 to form a guide channel section.
The rear end edge of the bottom wall 27 of No. 6 is pivotally supported. At least a portion of the bottom wall 27 and the side walls 28, 28' are formed of a buoyancy material, and due to the buoyant action of the buoyancy material, the front edge of the floating object sorting device 26 responds to the wave motion of floating objects on the water. It is designed so that it can always capture floating objects up to a preset depth. In addition, the left and right side walls 28, 28'
A buoyancy adjustment weight W' is attached to the front end of the bottom wall 27 to finely adjust the buoyancy, and by adjusting the weight of this buoyancy adjustment weight W', the depth of the front edge of the bottom wall 27 can be adjusted. can be changed as needed. On the top side of the bottom wall 27,
A backflow prevention plate 29 is formed that extends rearward while drawing a smooth curved surface from the front edge of the bottom wall 27, and due to the action of this backflow prevention plate 29, the suspended matter once flows into the floating matter sorting device 26. It is possible to prevent objects floating on the water from flowing backward due to the influence of waves. Also, a pair of left and right side walls 25, 2 of the main body 23
Adjustable tilting limiting devices 40, 40' are attached to the front upper end of the floating object sorting device 26, respectively. By abutting the upper end, the floating object sorting device 26 is prevented from swinging around the pivot portion 30 over an extremely large angular range.

The lower part of the main body 23 has a suction port that opens along the rear edge of the bottom wall 27 of the floating object sorting device 26 at the front end, and gradually becomes narrower and thicker from the front edge to the rear edge. A fixed suction tube 33 having a shape in which the pressure increases is fixed in a rearward downwardly inclined state, and the rear end of this fixed suction tube 33 is connected to, for example, a flexible suction tube 18 via a joint 34. There is. A helical guide plate 33' is disposed inside the fixed suction tube 33 for generating a vortex in the floating objects sucked into the fixed suction tube 33 to increase the suction force of the fixed suction tube 33.

Immediately above the suction port of the fixed suction tube 33,
A wall surface 24' extending from the rear lower side to a front edge 35 formed to protrude just above the water surface when in use.
As shown in FIG. 6b, for example, a plate-shaped flow rate adjusting body 32 is attached to the plate-shaped flow regulating body 32 by attaching and detaching means such as a pair of slider rails 32' and 32''.
is supported in a detachable manner. This flow rate regulator 3
As 2, several types of plate-like bodies with different thicknesses can be used. For example, the most appropriate thickness can be used depending on the magnitude of the suction force of the pump 19, the thickness of floating objects on the water, etc. By using the plate-shaped body, the flow rate immediately before the suction port of the fixed suction tube 33 can be adjusted appropriately.

The front edge 35 forms a smooth convex curved surface, and an inclined wall 36 that slopes upward toward the rear extends from the front edge 35. Above this inclined wall 36, left and right side walls 2
A wave dissipating device 39 consisting of a large number of rods 38 is installed between 5 and 25'.

A pair of floats 31, 31' are formed on the outer sides of the left and right side walls 25, 25', and
Between the left and right side walls 25, 25', the bottom wall 24,
A portion of the wall surface 24' surrounded by the inclined wall 36 and the rear wall 41 is filled with a buoyancy material 37. Due to the buoyant action of these floats 31, 31' and the buoyant material 37, the main body 23 itself can float on the water, and as a result, the floating object collection device 1
4 can float independently on the water and perform the task of collecting floating objects on the water.

Since the water floating object collection device shown in FIGS. 6 and 7 is configured as described above, the floating object sorting device 26 swings around the pivot portion 30 in response to the wave motion of water and water floating objects. At the same time, it is possible to always take in water floating objects up to a certain depth at the tip edge, and once taken in, the water floating objects are prevented from easily flowing back by the backflow prevention plate 29. At this time, by adjusting the buoyancy of the floating matter sorting device 26, the floating matter sorting device 26 can always select and take in only the floating matter layer on the water.

Floating objects on the water that have passed through the floating object sorting device 6 are accelerated into a vortex by the action of the spiral guide plate 33', and are suctioned and pressurized by the pump through the fixed suction pipe 33 and the suction pipe 18 to remove floating objects. It is pumped to the collection tank. By replacing the flow rate regulator 32 as necessary, the flow rate at the suction port of the fixed suction tube 33 can be adjusted.

Furthermore, floating objects on the water that are thrown up above the inclined wall 36 due to the action of waves or the like are immediately dissipated by the wave dissipating device 39, calmed down, flow down along the inclined wall 36, and are smoothly sucked into the fixed suction pipe 33. Flows into the mouth.

The water floating object collection device according to the present invention includes first to fourth
In addition to being used by attaching it to the floating object recovery vessel 1 as shown in the figure, it is also possible to float it completely independently and operate it remotely.
As shown in FIG. 9 and FIG. 9, a pump includes a water intake device 46 equipped with a coarse floating matter removal net 45, a pair of left and right buoyant bodies 42, 42', and sucks and pumps floating matter on the water. It is also possible to install the floating object on the center of the support frame 43 on which the support frame 44 is mounted, and to float it on the water, so that the pump 44 mounted on the support frame 43 is activated to collect floating objects on the water.

As described above, according to the present invention, the structure as a whole is simple, and it can be manufactured in a small size, so it is highly versatile, and the floating object sorting device itself has buoyancy and Because it is pivoted, it is possible to always select and take in floating objects up to a preset depth even when the water surface is in wave conditions. A wave-dissipating device is installed above this sloping wall, so even if floating objects that flow into the main body are shaken or thrown up by waves, the waves are immediately dissipated and calmed down. The liquid flows down along the inclined plate and is sucked into the fixed suction pipe in an orderly manner, and since the flow rate regulator is installed near the suction port of the fixed suction pipe, the suction force of the pump and the floating of floating objects on the water are reduced. The present invention provides a water floating object recovery device that can adjust the flow rate of water floating objects sucked into a fixed suction pipe according to the thickness of the layer, and can efficiently perform water floating object recovery work. .

[Brief explanation of drawings]

FIG. 1 is a longitudinal side view of a water floating object collection vessel in which a water floating object collection device according to an embodiment of the present invention is installed, and FIG. 2 is a longitudinal sectional plan view taken along the line - in FIG. 1. 3 is a cross-sectional view taken along the - line in FIG. 1, FIG. 4 is a cross-sectional view taken along the - line in FIG. 1, and FIG. 5 is based on an embodiment of the present invention. A vertical cross-sectional side view of the water floating object collection device taken along the - line in Fig. 6a, Fig. 6a is a plan view of the device in Fig. 5, and Fig. 6b is an enlarged view of the main part of Fig. 6a. 7 is a cross-sectional view taken along the - line in FIG. 5, FIG. 8 is a plan view showing another state of use of the device of the present invention, and FIG. 9 is a cross-sectional view taken along the - line in FIG. 8. FIG. 14...Water floating object collection device, 23...Main body,
25, 25'... side wall, 26... floating matter sorting device,
27...bottom wall, 32...flow regulator, 33...fixed suction pipe, 36...slanted wall, 39...wave dissipating device.

Claims (1)

[Claims] 1 A main body 23 having sufficient buoyancy to float on water, and a floating object sorting device 26 having a rear end edge of a bottom wall 27 pivoted along the front end edge of a submerged part of the main body 23. The floating object sorting device 26 has a front edge that always takes in floating objects up to a preset depth by the action of buoyancy of the floating object sorting device 26, and a front edge that always takes in floating objects up to a preset depth. The main body 23 has a guide channel section for guiding floating objects on the water to the main body side, and the main body 23 guides floating objects on the water that have flowed through the guide channel section of the floating object sorting device 26 to the floating object sorting device. 26 bottom wall 27
A fixed suction tube 33 fixed to the main body 23 so as to draw suction from a suction port opening along the rear edge.
and a flow rate adjusting body 32 detachably attached to the main body 23 in the vicinity of the suction port of the fixed suction tube 33 so as to adjust the flow rate of floating matter sucked into the fixed suction tube 33. , a pair of left and right side walls 2 from near the front of this flow rate regulator 32
5 and 25', and a water dissipating device 39 provided above the inclined wall 36.