JPS5946835B2 - Suction cleaning method for aquatic weeds and suction cleaning boat for the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a suction cleaning method for aquatic weeds that have grown in rivers, lakes, etc., and a suction cleaning boat suitable for this purpose. It is an object of the present invention to provide a cleaning method and a cleaning boat that are extremely effective for cleaning rivers, lakes, and marshes by removing aquatic weeds that breed in water, such as the Japanese giant canada, the common canada, and the water hyacinth.

Aquatic weeds that breed in water, such as naturalized plants such as Physcomitrella spp., Co. elegans, and Phyllis spp., multiply abnormally from spring to autumn due to eutrophication of rivers and lakes, causing blockages in irrigation canals and damage to outboard motor screws. They have become a serious social problem as they cause problems such as getting entangled and disrupting the navigation of ships, getting entangled in fishing nets and disrupting the fishing industry, and disrupting the beautification of rivers and lakes.

In particular, the water hyacinth has a very strong reproductive ability, so if an abnormal occurrence in a lake or marsh is left untreated, the water surface of the lake will be covered with the hyacinth, and the water temperature of the lake will drop abnormally, causing a loss of fish life. This will have a negative impact, and if the elderly or children fall into such lakes, early detection will be difficult and their lives will be at risk.

Therefore, it is necessary to prevent the eutrophication of rivers, lakes and marshes, or remove such aquatic weeds at the early stage of their reproduction, to prevent the various pollution and negative effects mentioned above.
The current situation is that rivers, lakes and marshes in various regions are not sufficiently monitored, causing abnormal proliferation of aquatic weeds, and it is difficult to take measures to remove them.

Conventionally, to remove aquatic weeds that have grown in this way, workers use rakes to collect them on board or on land, but this method has the disadvantage of being extremely inefficient.

There is also a method of mechanically cutting aquatic weeds slightly below the water surface using a rotating blade, but this method leaves the roots of the aquatic weeds behind and is only a temporary measure; The disadvantage is that the same work must be repeated over and over again.

On the other hand, as a vessel for collecting objects floating on the water surface,
The recovery vessel disclosed in No. 887 is known in the art.

This previously proposed recovery vessel is a recovery vessel for recovering spilled and incoming garbage floating on the sea surface, and in particular, it is designed to facilitate the recovery of spilled oil by eliminating the ignition of spilled oil that easily vaporizes. The recovery ship is equipped with a pressure water introduction pipe on the recovery ship's hull and connects the pressure water introduction pipe with a propulsion, steering, and injection pipe via an azimuth switching stop valve, without using anything that easily generates heat such as an engine or rotating propeller. This is what we provide.

In other words, this previously proposed recovery ship uses the ship's propulsion and steering means as
This method is based on the reaction caused by the jet of pressurized water generated by a water compressor, and the collection of suspended matter is obtained from the suction force caused by the negative pressure action of the pressurized water jetted from the pressure water introduction pipe through the injection pipe via a valve. It is.

Therefore, in this already proposed invention, the ship is propelled by discharging pressure water out of the ship in the opposite direction of propulsion through a valve, and floating objects on the water surface are collected by the negative pressure generated at this time. Therefore, its collection power is extremely weak, and although it is effective for floating oil, etc., it is necessary to remove the valve in the path directly to remove floating objects that are large in shape, such as aquatic plants that cannot pass through the valve. It could not be said to be a suitable recovery vessel as it was blocked and could not turn.

The present invention was proposed in order to eliminate the drawbacks of such conventional methods and to achieve the above-mentioned object of the present invention. , a suction cleaning boat composed of a suction and discharge mechanism installed on the hull-F, an underwater floating body connected to the rear of the hull, and a swash plate installed on the underwater floating body, and this suction cleaning boat. The invention relates to a suction cleaning method using .

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, embodiments of the present invention will be described in detail based on drawings illustrating embodiments.

1 is a hull that is not equipped with a rotating propeller.

A is a suction and discharge mechanism installed on the hull 1, and this suction and discharge mechanism A includes an engine 2, a self-priming pump 3, a suction pump 4, a suction pipe 5 connected to this suction pump 4, A suction hose 6 with one end connected to the suction pipe 5 and a scraping tool 25 attached or not attached to the other end, a discharge pipe T connected to the suction pump 4, extended rearward and equipped with a valve 32, and a controller. It consists of 8 parts.

A hydraulic cylinder 9 and a hydraulic cylinder 31 are attached to this controller 8, and one end of an arm 10 for supporting the suction hose 6 is fixed to it. In the vicinity of 11, a suction port adjustment fitting 12 is attached.

Using this adjustment fitting 12, the upper and lower angles of the suction port 11 can be adjusted.

When the hydraulic cylinder 9 of the controller 8 is activated,
The suction port 11 of the suction hose 6 together with the arm 10 is
The position can be changed within the upper and lower ranges indicated by arrow 33, and when the hydraulic cylinder 31 is actuated, the suction port 11 can be changed and adjusted in the left-right direction as indicated by arrow 13.

14 is a pipe connecting the self-priming pump 3 and the suction pump 4; 15 is a valve provided on the pipe 14;
6 is a countershaft, and 1T is a belt.

B is an underwater floating body, and this underwater floating body B is constructed in the shape of a raft by a float 18 and a base plate 19 installed on the float 18.

However, the shape and structure of the underwater floating object B is not limited to this. For example, it may be a ship partitioned into an upper part and a lower part, with the lower part being a hollow body and a water discharge hole provided in the upper side wall. It should be understood that it may also be a floating body with a structure that allows water to flow out into the water.

The rear end of the hull 1 and the tip of the underwater floating body B are connected to a coupling tool 20,
For example, they are connected by a rod.

Reference numeral 21 denotes a swash plate, which is rotatably fixed to the upper end of a freely rotatable column 22 that is fixed to the base plate 19 of the submersible floating object B and stands upright, and this swash plate 21 has an inclination angle relative to the front. can be adjusted arbitrarily and fixed to the support column 22,
Further, by rotating the support column 22, the angle of inclination to the left and right can be adjusted.

23 is a pipe bracket attached to the hull 1, 24 is a pipe bracket attached to the underwater floating body B, and the central part and rear end of the discharge pipe 7 are supported by these brackets 23 and 24. .

Reference numeral 25 denotes a caterpillar-type scraper, which is rotatably fixed to the tip of the suction hose 6 and installed at an appropriate location near the suction port 11, as shown in FIG.

However, depending on the breeding state, shape, or size of the aquatic weeds 26, it may not be necessary to use the raking tool 25.

A stabilizer 30 is used to prevent the hull 1 from shaking sideways when the suction port 11 of the suction hose 6 is continuously rocked from side to side without the scraping tool 25 being attached.

In addition, 28 in FIG. 1 indicates the water surface, and 29 indicates a net having an appropriate mesh size and width.

Next, the usage status of the suction cleaning boat according to the present invention for cleaning and removing aquatic weeds 26 will be explained.

The hull 1 is brought close to the aquatic weeds 26 that have grown on the water surface 28, the tip of the suction hose 6 is inserted into the water, and the upper, lower, right and left sides of the suction port 11 are adjusted by the hydraulic cylinders 9 and 31 attached to the controller 8. And the vertical angle is adjusted by the suction port adjustment fitting 12.

Next, the valve 32 provided on the discharge pipe T is closed, the valve 15 provided on the pipe 14 is opened, the engine 2 is started, and the self-priming pump 3, such as a vacuum pump, is activated, and water suction is started. .

When an appropriate amount of water is suctioned, the valve 15 is closed and the valve 32 is opened, and the suction pump 4, for example, a bladeless centrifugal pump or a centrifugal pump with a structure that prevents aquatic plants from becoming entangled or clogging, starts suction and discharge. As the action begins, the aquatic weeds 26 are sucked into the suction port 11 along with water.

The sucked water and aquatic weeds 26 are removed by the suction hose 6
It passes through the suction pipe 5 and is discharged from the end of the discharge pipe 7 so as to collide with the swash plate 21.

Aquatic weeds 26 that collide with a swash plate 21 and fall are deposited on a net 29 spread on a base plate 19 of an underwater floating body B.

The aquatic weeds 26 are compressed and crushed when they pass through the suction hose 6, the suction pipe 5, and the discharge pipe 7 and when they collide with the swash plate 21, so they do not become bulky and can easily be placed on the net 29. A large amount of water is deposited on the base plate 19 and the base plate 19.
Since it flows down into the water from between the two, it is possible to prevent the weight from increasing due to water.

When the amount of aquatic weeds 26 deposited on the net 29 reaches a certain amount, the raft made of plywood 19 is replaced with a new raft of the same shape to continue the cleaning work.

On the other hand, the raft on which the aquatic weeds 26 are piled up is pulled to the riverbank with a rope or the like, and hoisted together with the net 29 by a hoisting machine.

At such times, the aquatic weeds 26 are compressed and the water is separated, resulting in a lightweight and compact state that can be easily transported and removed.

During the cleaning and removal work of the aquatic weeds 26, the worker can actuate the cylinder 31 of the controller 8 to change the position of the suction port 11 to the left or right as shown by the arrow 13. Since the cylinder 9 can be operated to adjust the vertical position of the suction port 11, it is possible to continue the work that is appropriate for the type, shape, and size of the aquatic weeds 26.

In addition, when necessary, the vertical angle of the suction port 11 can be changed and adjusted using the suction port adjustment fitting 12.

In addition, when the suction material is discharged from the discharge pipe T and collides with the swash plate 21, if the inclination angle of the swash plate 21 to the front or left and right is adjusted appropriately, the propulsive force at the time of discharge can be applied by the swash plate 21. By changing this, the speed or direction of the forward moving hull 1 can be adjusted, and the hull 1 can also be brought to a standstill.

Note that during the above-mentioned work, the stabilizer 30 is attached to the hull 1.
The suction port 11 is installed to stabilize the horizontal movement of the hull 1.
When the left and right positions are continuously moved, the flow rate of water generated near the suction port 11 moves the vortex over a wide range, and the aquatic weeds 26 can be efficiently sucked.

Furthermore, if the suction port 11 is fixed and the raking tool 25 is attached during operation, the flow velocity of the water generated near the suction port 11 will be able to scrape up aquatic weeds 26 from a wide range near the vortex in the direction of the arrow 27. This makes it possible to improve the efficiency of cleaning work.

As detailed above, the aquatic weed cleaning boat according to the present invention is not equipped with a rotary propeller in order to obtain propulsion force, but is equipped with a suction and discharge mechanism, and the operation of this suction and discharge mechanism removes aquatic weeds from the roots. The aquatic weeds are suctioned and removed, and the force of the aquatic weeds released is used as propulsion force for the ship's hull, and by bringing the ejected material into contact with the swash plate and changing the angle of the swash plate, the ship's hull is The following direction of the underwater floating body can be changed arbitrarily, and the suctioned and removed aquatic weeds are not loaded on the hull, but the aquatic weeds are placed on the underwater floating body, so the water intake of the hull can be set to be shallow. Since the hull can be made small and lightweight, it has the advantage of being able to sail not only in deep rivers and lakes, but also in shallow medium and small rivers, lakes and irrigation channels, and to clean aquatic weeds.

In addition, the aquatic weed suction and cleaning boat according to the present invention does not use a valve in the suction and discharge path and has a structure that prevents aquatic weeds from passing through the suction device. etc. are crushed during the suction and discharge path, especially within the suction device, and are crushed into small pieces before being discharged. Therefore, when placing the aquatic weeds on the underwater floating body, the bulk can be reduced and transportation and handling are easy. This is a suction cleaning boat for aquatic weeds.

Furthermore, since the suction cleaning method for aquatic weeds according to the present invention is a method for cleaning aquatic weeds using a suction cleaning boat that exhibits the above-mentioned effects, it can be used not only in deep rivers and lakes, but also in small and medium-sized rivers with shallow depths. It can be used to clean aquatic weeds by navigating in lakes or irrigation canals, and it is much more efficient than manual work using conventional rakes, etc., and it can suck out and remove all aquatic weeds from the roots. This is an innovative suction cleaning method for aquatic weeds that is effective in preventing their re-occurrence.

[Brief explanation of the drawing]

The attached drawings illustrate embodiments of the present invention, in which Figure 1 is a front view of a suction cleaning boat according to the present invention, Figure 2 is a plan view, and Figure 3 is a diagram showing a scraper used in the present invention. FIG. 3 is a plan view showing a state in which the stopper is attached. In these drawings, 1 is the hull, A is the suction and discharge mechanism,
B is an underwater floating body, and 21 is a swash plate.

Claims (1)

[Claims] 1. The drive shafts of the engine, self-contained pump, and suction 1 pump are connected to each other via a connecting shaft, and a suction pipe is connected to the suction path of the suction pump. The tip is supported by a controller and extends outside the hull, and a discharge pipe is connected to the discharge path of the suction pump and is led out toward the rear of the hull.The controller that supports the suction pipe extends the tip of the suction pipe. An underwater floating body constructed in the shape of a raft, consisting of a suction port adjustment fitting to hold, an arm that supports the suction port adjustment fitting, and a hydraulic cylinder that drives this arm, and a suction and discharge mechanism consisting of these components is installed on the hull. is integrally connected to the hull via a coupling tool, and a swash plate is rotatably attached to the upper end of a column erected on the plywood of this underwater floating body, or a swash plate is attached directly to the discharge end of the discharge pipe. A suction cleaning vessel consisting of the hull and the underwater floating body is used to suction the aquatic weeds growing in the water from the suction port at the end of the suction hose by operating the suction pump, and remove the aquatic weeds. While passing through the suction and discharge mechanism, the aquatic weeds are discharged from the rear end of the discharge pipe so as to collide with the swash plate along with water, and the aquatic weeds that collide with the swash plate and fall are deposited in the form of underwater floating bodies, and the swash plate By arbitrarily changing the vertical angle of the vessel and arbitrarily changing the inclination angle to the left and right, the propulsion direction and propulsive force of the ship body and underwater floating body can be arbitrarily changed, and the ship body and underwater floating body are propelled forward. A suction cleaning method for aquatic saplings that grow in rivers, lakes, and marshes. 2 Consists of a hull not equipped with a rotary propeller and a submersible floating body connected to this hull via a coupling device.The hull is equipped with an engine, a self-feeding pump, and a suction pump, as well as the equipment for each of these devices. The drive shaft is connected and integrated via a connecting shaft, and a suction pipe is connected to the suction path of the suction pump. It is supported by an arm that supports the mouth adjustment fitting, and a controller consisting of a hydraulic cylinder that supports this arm, and a discharge pipe is connected to the discharge path of the suction pump, and this discharge pipe is connected to the underwater floating body connected to the rear of the hull. The underwater floating body is constructed in the form of a raft by a plywood board installed on the float, and is rotatably attached to a support erected on the plywood board, or a diagonal structure is attached directly to the discharge end of the discharge pipe. A suction cleaning boat for aquatic weeds, wherein a plate is configured to abut against the discharge pipe at a required distance.