JPS6128497A - Apparatus for injecting air in water and bottom of water - Google Patents

Abstract

PURPOSE:To attain to promote the activation of seawater and the chemical reaction of sea bottom accumulated substance by the action of oxygen in air, by obtaining compressed air at any time by utilizing the motion of the surface wave on the surface of seawater and accumulating said compressed air to discharge the same in seawater or the sea bottom accumulated substance. CONSTITUTION:At a position having a right-angled component to the advance direction of waves, a box shaped converging bank 1 is arranged so as to be floated on the surface of seawater. Said converging bank is opened at the lower surface thereof and divided into a plurality of small chamber 13a, 13b- while the peripheral side wall thereof is set so as to be higher than the height of waves and the front part side wall in the front side in the advance direction of waves is suspended so as to be made longer than the opposed rear part side wall. The small chamber are provided with compressed air exhaust ports 21a, 21b- at the upper parts thereof and the exhaust ports thereof are connected to a compressed air accumulation tank 24 through check valves 23a, 23b- operated under difinite pressure or more while open air suction ports having check valves 26a, 26b- operated at atmospheric pressure or less are provided to the upper part of said small chambers. Further, an air feed pipe, of which the leading end is suspended so as to reach the vicinity of the surface of the sea bottom, is connected to the tank 24.

Description

[Detailed Description of the Invention] [1] Purpose of the Invention (Field of Industrial Application) This invention is used in the field of purifying underwater/water bottoms in seas, lakes, and rivers, and is particularly applicable to the field of purifying underwater/water bottoms by constantly injecting air into the water/water bottom. This invention relates to an apparatus for injecting air into the water or the bottom of the water, which activates and purifies water by doing so.

(Prior Art) In recent years, pollution of oceans, lakes, and rivers has progressed and become a major problem.

In particular, the seabed surface of current small-scale aquaculture facilities and raft-type aquaculture facilities is
Due to the accumulation of feeding residue, ammonia gas is generated due to decomposition and organicization of the seafloor surface layer, abnormal occurrence of plankton, and changes in the ecosystem.Also, due to structural problems of various facilities, the tendency to choose still water surface makes it difficult to exchange seawater. As a result, the self-purifying ability of the seawater has deteriorated, and the quality of the ocean, bottom surface layer, and water have changed, resulting in a causal relationship that could be described as suicidal for the aquaculture industry.

Various proposals have already been made regarding this countermeasure.

Some methods have been adopted, such as suspending aquaculture in the relevant sea area, temporarily suspending the sea area by moving equipment and facilities, and removing and agitating the seabed surface layer, but there are economic problems and the profit of the operators. It cannot be said that various current proposals are necessarily producing results.

However, when considering future national requirements for the current aquaculture industry or aquaculture industry, it is impossible to leave things as they are, and there is a strong desire to establish rational countermeasures.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned problems easily and economically. This is accumulated and released into seawater or seabed mud, which activates the seawater through the action of oxygen and other substances in the air and promotes chemical reactions in the seabed sediment. To provide a device for injecting air into the water/bottom of the water that prevents the generation of substances.

(2) Structure of the Invention (Means for Solving Problems) The underwater/waterbed air injection device of the present invention has a convergence bank set floating on the water surface with a component perpendicular to the direction of wave propagation. We are prepared.

The convergence levee has the structure described below, but even if only one is installed perpendicular to the wave progression, or it can be installed in a V-shape (converging at the end in the direction of wave travel) to welcome the waves. You may install two.

The convergence levee is box-shaped, extending long above the water surface, and is open at the bottom, with the interior divided into multiple chambers. The side walls around this convergence levee are set higher than the wave height, so that even when waves arrive, the space above the water surface inside the chamber does not communicate with the atmosphere through the opening. In addition, the front side wall of the surrounding side wall on the forward side in the direction of wave propagation hangs down longer than the rear side wall facing it, and the waves passing under the rear side wall are not received by the front side wall. It is now possible to

When the convergence levee is set in a V-shape, the wave motion becomes larger as the waves hit the convergence levee and progress.
Preferably, the front side wall has a drooping length that increases as it goes forward. Further, in this V-shaped convergence levee, it is more preferable that the angle of the V-shape is made variable and set to an optimum angle so that waves are effectively concentrated as the waves advance. Furthermore, in order to prevent the waves from going backwards when reflected by the V-shaped convergence levee, the angle is set at 60°.
”~906 is recommended.

A discharge port is provided at the top of each chamber of the convergence levee to take out the air compressed by waves in the upper space of the chamber, and each discharge port discharges the compressed air through a check valve that operates at a constant pressure. Connected to an accumulating tank. Furthermore, an air inlet port is provided at the top of each of the small chambers to introduce the atmosphere into the small chamber via another check valve.

A pneumatic pipe is connected to the tank. The pneumatic pipe is for injecting air into the water or the bottom of the water, and it hangs down to a set depth, and has an air outlet at its tip. ,
It is preferable that the air outlet extends from the tip of the pneumatic pipe to a branch pipe distributed in a certain area, and is provided in a large number of locations in this branch pipe over a wide area.

In addition to the above-described configuration, the present invention can also include a suction pipe for sucking up sludge, if necessary. The suction pipe is connected to a pump driven by a portion of the compressed air in the tank, and the suction port at its lower end is located at a predetermined underwater depth. The suction port also has the same function as the air outlet described above.
It is desirable to improve the wicking efficiency by distributing it in a predetermined area.

(Function) Next, how air is injected into the water/water bottom in the device of the present invention will be explained.

When waves arrive at the convergence levee floating on the water surface, the waves are stopped by the front side wall of the convergence levee, and the air in the spaces of each chamber of the convergence levee is compressed by the rising wave surface (water surface). The degree of compression in each chamber varies depending on the height of the waves, but the air in the chambers is compressed to a certain pressure or higher and sent into the tank through a check valve. Next, when the wave front descends, the pressure inside the small chamber becomes negative, so that air is newly sucked into the small chamber from the suction port provided in the small chamber through another check valve.

The compressed air introduced into the tank is sent to a pneumatic pipe under constant pressure through, for example, a regulator, and is blown out from air outlets distributed underwater and at the bottom of the water.

This blown air activates the water in the water or promotes chemical reactions in the bottom sediment layer, purifying the water and preventing the generation of malignant substances.

Furthermore, if a suction pipe is provided, a pump connected to the suction pipe is driven by a portion of the compressed air in the tank, and sucks up sludge from the water through the suction pipe. Makes the purification effect more effective. The sludge is then condensed and discharged through a filter device, and the purified water is returned to the surface.

(Example) The embodiments shown in the drawings will be described below.

FIG. 1 is a perspective view showing a first embodiment in which the device of the present invention is applied to a fish preserve. Incidentally, FIG. 2 is a system diagram of the apparatus shown in FIG. 1.

In the figure, 1 and 1 are a pair of wires, etc. 19. 19 that are pulled by a wire or the like and set open at a certain angle θ in the direction of wave propagation A (to end in the direction A) floating on the water surface. It is a side convergence levee. Both side convergence banks 1.1 are set apart from each other at the ends in front of the waves, and a fish cage 6 is arranged in front of the interval.

Both side convergence banks 1, 1 are constructed in exactly the same way.

As shown in detail in FIGS. 4 to 6, the side convergence levee 1 has a box shape that extends long above the water surface, the lower surface 1) is open downward, and the interior is surrounded by a partition wall 12a. ,
12b, . . . by small chambers 13a, 13b, . . .
It is divided into The hanging length of the side wall hanging around the ceiling wall 14 of this convergence levee is set to be at least larger than the wave height.

The hanging length H of the front side wall 16 in the forward direction of wave propagation is longer than the hanging length H of the rear side wall 15 facing it (see FIG. 6). Furthermore, the hanging length H is set to increase as it goes forward in the direction of wave propagation (that is, toward the fish tank in FIG. 1).

A float 17 for floating the convergence bank is attached to the outer surface of the side wall.

The upper wall 14 of each small chamber is provided with exhaust ports 21a, 21b, .
, 22b, . . . are connected to the tank 24 via check valves 23a, 23b, .

Further, the upper wall 14 of each small chamber is provided with suction ports 25a, 25b, .
b is attached.

In the tank 24, as shown in FIGS. 1 and 2,
A pneumatic pipe 30 suspended to a certain depth underwater is connected,
Connected to the deepest part of the pneumatic pipe 3 are a plurality of branch pipes 31, 31, . . . that extend horizontally in a predetermined area. The branch pipe 31 has air outlets 32 at multiple locations appropriately distributed.
32°... is provided.

On the other hand, a suction pump 4 that is driven by a portion of the compressed air in the tank 24 is attached to the tank 24 . A suction pipe 40 that hangs down to the sludge area in the water is connected to the pump 4, and the suction pipe 40 also has a plurality of branch pipes 4L extending horizontally at the deepest part.41. ..., which has a large number of suction ports 42.42. ...is provided. The pump 4 is provided with a filter device 45, and has a return port 46 for returning filtered water to the water surface and a discharge port 47 for transferring condensed sludge.

When waves arrive at the device described above as shown in Figure 1,
After the energy of the wave is absorbed by the side converging bank L1, a part of the wave directly reaches the fish tank 6.

The waves arriving at the side convergence levees 1 become higher as they advance because the intervals between the convergence levees 1.1 are narrower. The above-mentioned waves pass under the rear side wall 15 of the side convergent levee 1 and reach the long hanging front side wall 16, where the reception is stopped, so that the waves move upward and downward within the small chambers 13a, , 13b, . . . Get some exercise. This vertical movement becomes larger as the chamber moves forward in the direction of wave propagation. This vertical movement causes the wave surface (water surface) to
moves up and down, compressing the air in the small chamber to create high pressure when rising, and creating negative pressure when falling.

The air compressed in this way is discharged from the exhaust ports 21a, 21b...
・From the discharge pipes 22a, 22b, . . . to the check valve 23a.

The pressure is accumulated in the tank 24 via 23b, . When the pressure is negative, air is newly drawn into the small chambers 13a, 13b, . . . through other check valves 2.6a, 26b, . . . in preparation for the next compression process.

The compressed air in the tank 24 is sent to the water/bottom via the pneumatic pipe 30, and the air outlet 32.32. ...is blown out, and the water is activated by the air.

On the other hand, the pump 4 is driven by a portion of the compressed air in the tank 24, and the suction ports 42, 42. Sludge is sucked up from... After the sludge is condensed in the filter device 45, it is carried out through the discharge port 47, and the filtered water is returned to the water surface through the return port 46.

A second embodiment is shown in FIG.

In this embodiment, both side convergent levees 1 are connected by a central convergent levee 5. The central convergence bank 5 basically has the same structure as the side convergence bank 1 described in the previous embodiment. The difference is
The front side wall is set at the hanging length of the longest part of the front side wall of the side convergence levee over the entire length of the central convergence levee.

According to the configuration of this embodiment, most of the energy of the waves can be converted into air pressure, making it possible to obtain an extremely large amount of compressed air.

(3) Effects of the Invention According to the present invention as described above, the following effects can be obtained.

■ Since we decided to supply air into the water, the water will be activated and purified. In aquaculture facilities, it is possible to prevent the generation of ammonia gas due to decomposition and organicization on the surface of the water bottom caused by the accumulation of feeding residues, the abnormal occurrence of plankton, and changes in the ecosystem, allowing the facilities to be used for a long time in favorable conditions. It becomes possible.

(2) Since waves, which are natural energy, are used to supply the air, it is a very economical device that does not require any other energy, and does not cause pollution.

Even in areas with few waves, the side converging embankment concentrates the waves, ensuring sufficient energy. Even if the wave height changes over time, the compressed air is stored in the tank, so air can be constantly supplied to the water and the bottom of the water.

■ If the sludge is to be sucked up by a pump,
The above effect (2) is further improved.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a schematic perspective view showing the entire device of the first embodiment, FIG. 2 is a system diagram of the device shown in FIG. 1, and FIG. 3 is an overall diagram of the device of the second embodiment. FIG. 4 is a partially cutaway perspective view showing a part of the convergence levee used in both of the above embodiments, FIG. 5 is a sectional view taken along line V-V in FIG. 4, and FIG. It is a sectional view taken along ■-■. 1......(Side) Convergence embankment 1)......Openings 13a, 13b......Small room 15...
..... Rear side wall 16 ..... Front side wall 21a, 21b ..... Discharge port 23a,
23b・・・・・・・・・Check valve 24・・・・・・・・・
・Tank 30...Pneumatic pipe 32...Air outlet 4...Pump 40...Suction Upper pipe 45... Filter device 46 Return port 5 Central convergence bank 6 Fish cage Patent applicant Masaaki Kanazawa Masaaki Sakuta

Claims (9)

[Claims] (1) At a position that has a component perpendicular to the direction of wave propagation,
A box-shaped convergence levee is placed floating on the water surface. The front side wall on the forward side in the direction of travel hangs longer than the rear side wall facing it, and each chamber has a compressed air outlet at the top, and the outlet is connected via a check valve that operates at a certain pressure or higher. The tank is connected to a tank that stores compressed air, and is equipped with an air inlet at the top with a check valve that operates below atmospheric pressure. 1. An apparatus for injecting air into the water or the bottom of the water, characterized in that an air supply pipe is connected to the air supply pipe, and the air supply pipe has an air outlet at its tip. (2) The converging levee consists of two side converging levees arranged at a constant interval and set at a convergence angle in the direction of wave propagation.
) Air injection device into the water/water bottom. (3) The apparatus for injecting air into the water/bottom of the water as set forth in claim (2), wherein the closing angles of the two side converging banks are variable. (4) The closing angle of the two side convergent levees is 60° to 90°
An apparatus for injecting air into the water/bottom of the water according to claim (2). (5) Claim (1) characterized in that the front side wall of the convergence levee hangs down gradually in the direction of wave propagation.
Air injection device into the water/bottom of the water described in Section 1. (6) The method according to one of claims (2) to (4), characterized in that a fish cage is provided between the ends of the two side convergence banks in the direction of travel. Air injection device underwater/bottom. (7) One of claims (2) to (4), characterized in that a central convergence bank is provided between the ends of the two side convergence banks in the direction of travel. In the water described in
Air injection device to the bottom of the water. (8) At a position that has a component perpendicular to the direction of wave propagation,
A box-shaped convergence levee is placed floating on the water surface. The front side wall on the forward side in the direction of travel hangs longer than the rear side wall facing it, and each chamber has a compressed air outlet at the top, and the outlet is connected via a check valve that operates at a certain pressure or higher. The tank is connected to a tank that stores compressed air, and is equipped with an air inlet at the top with a check valve that operates below atmospheric pressure. A feed pipe is connected, and the pneumatic feed pipe is provided with an air outlet at its tip, and has a pump driven by a portion of the compressed air from the tank. A device for injecting air into the water or the bottom of the water, characterized by being connected to a suction pipe. (9) The suction pipe is provided with a filter device at the upper end, and the filter device has a return port for returning filtered water to the water surface. Air injection device underwater/bottom.