JP2003138612A - Waterborne water storage tank and water collecting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterborne water storage tank which enhances a value added of a floating structure floating on the water surface of the sea, a lake, or the like, and ensures preferable and practical water supply source and electric power source, and to provide a water collecting apparatus. SOLUTION: There is provided a lightweight structure which is comprised of a tank body 8 and a water collecting body 10. The tank body 8 is floated on the water surface of the sea, the lake, or the like, by a frame-shaped float 1, and stores therein a predetermined amount of rainwater. The water collecting body 10 functions to collect rainwater and stores the same in the tank body 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water storage tank which floats on the surface of water such as the surface of a sea, a lake or a pond and stores rainwater therein, and a water collecting device which collects and stores rainwater.

[0002]

2. Description of the Related Art Conventionally, as a floating structure, a levee that is erected on the bottom of the water or a rope body whose one end is fixed to the bottom of the water is used to hold it at a predetermined position on the surface of the water, and a peripheral wall has a bank wall protruding from the surface of the water. A floating structure composed of a sheet that spreads on the water surface and a rigid member that holds the rigidity of the sheet is known (WO94 / 19231, JP-A-6-18339).
No. 3).

These floating structures can secure an installation space for individual purposes such as planting trees, agricultural land, solar panel installation bases, and facility sites such as tennis courts, and are lightweight and inexpensive to build. It has the characteristic of being inexpensive.

[0004]

DISCLOSURE OF THE INVENTION The present invention is similar to the above-mentioned floating structure, and is a water storage tank that floats above the water surface and stores rainwater and the like therein, and a water collection tank that collects and stores rainwater. The purpose is to provide a device.

[0005]

A water storage tank according to the present invention comprises a bag-shaped tank body having at least a side portion and a bottom portion formed of a sheet, and an anchor member for fixing the tank body. Characterize. Further, the water collecting device of the present invention has a water storage tank, a water collecting body held on the water surface or on the water surface, and a water feeding means for sending the water collected by the water collecting body to the water holding tank. It is characterized by

The above-described water storage tank and water collecting device of the present invention store water such as rainwater by utilizing the sea surface or a wide lake surface, and collect and store rainwater falling on the sea surface and lake surface. Since the tank body is formed of a sheet, the tank body has a flexible structure that is easily deformed and can prevent damage due to stress concentration. Also, a huge tank body can be easily manufactured, and a huge water storage tank can be constructed on the sea surface.

Since this water storage tank can prevent damage due to stress concentration, and since rainwater is lighter than seawater and floats on the sea surface, it can be used as an inexpensive floating breakwater.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The water storage tank of the present invention has a tank body and an anchor member. The tank body stores rainwater and the like, and has a bag shape having at least a side portion and a bottom portion formed of a sheet. That is, the tank main body functions to separate the stored water from the seawater or lake water (hereinafter referred to as seawater) that floats the tank main body. Therefore, the tank body has at least a side portion and a bottom portion.

When the tank body has no upper portion, the upper ends of the side portions of the tank body are always located on the surface of seawater, and it is necessary to separate the stored water and the seawater at all times.

The tank body may be a sealed bag body having an upper portion and forming a sealed space inside. Since water is lighter than seawater, the tank body that stores water is floating above the sea surface. In addition, in order to enhance the buoyancy of the tank body, air may be enclosed together with water inside.

By making the tank body a long tubular shape, the tank body itself can be used as a floating breakwater. High flexibility because the tank body is made of sheet. Moreover, water or fluid is stored in the inside and easily deforms. Therefore, stress concentration is unlikely to occur in the tank body itself, and the force of the wave can be absorbed by deforming the tank itself with a large force such as a wave. Also,
It is also easy to form the tank body into a cylindrical shape having a diameter of more than 10 m, and it is possible to prevent propagation of a large wave having a relatively long wavelength.

When a tubular tank body or a tank body group in which the tank bodies are linearly connected is used as a breakwater, the edge of the breakwater is to be separated from the breakwater to be protected from waves such as a coastline. Can be placed along. This tank body can be used as a breakwater on a coral reef island.

It is also possible to provide a tubular tank main body or a tank main body group in which the tank main bodies are linearly connected to each other in an annular shape, and to divide the wave preventing water surface inside thereof. The water receiver according to the present invention can be arranged on the water surface of the wave.

It is also preferable that at least a part of the surface of the tank body is covered with a net to protect the tank body. The knot disperses the force and the stress by the knot. Therefore, when mooring the tank body, it is possible to prevent a large force from acting on a part of the tank body. Further, by using the net, it is not necessary to make the sheet forming the tank body particularly strong.

It is preferable that the tank body has at least four locking portions, and one end of the anchor member is locked to these locking portions. It is also possible to divide the front end portion of the anchor member on the tank body side into a plurality of parts, and to lock the divided front ends with different locking portions. Conversely, a plurality of anchor members can be locked to one locking portion.

The tank body may have a float that floats on the sea surface. The float may be formed integrally with the tank body or may be separated from the tank body fixed to the tank body with a rope or the like.

It is also possible to provide an engaging portion for engaging one end of the anchor member on the float.

The float may have a long tubular shape. By sealing a gas such as air slightly higher than atmospheric pressure inside the float, the float becomes a cylindrical rigid body. The cylindrical floats can be combined to form a frame. It is also preferable to fix the peripheral portion of the upper end of the tank body to the frame formed by this float.

The frame-shaped float located around the tank body can also be expected to protect the tank body from driftwood, boats, etc. that come into contact with the tank body.

It is possible to provide a pump float that is floated on the water surface of the water stored in the tank body, and a pump that is held by the pump float and pumps out the water in the tank body. Since the pump body is located on the surface of the stored water, there is no problem that the weight of the pump body causes a load to act on a specific portion of the tank body or the tank body is deformed by the load.

A sub tank that floats on the water stored in the tank body may be provided. The sub tank can have the same structure as the tank body. It is also possible to provide a plurality of sub tanks for one tank body. This allows different qualities of water to be stored in different tanks. For example, it is possible to store water having extremely low salt concentration, which is used as domestic clean water, in a sub-tank, and store intermediate water having a slightly high salt content for use in washing or the like in the tank body.

The tank body preferably has a water supply port for supplying water and a discharge port for pumping out water. Further, a gas supply port for supplying air or the like can be provided to prevent the stored water from spoiling. It is preferable to connect a pipe or the like to the gas supply port so that the gas is supplied to the bottom of the stored water.The anchor member fixes the tank body to a predetermined sea surface. And a rope portion connecting the anchor portion and the tank body. It is preferable to interpose a spring member, such as a spring, extending in the anchor portion by a large tensile force and contracting when the tensile force is weakened. It is preferable to utilize a spring member having a large extension distance so that a plurality of anchor members stop the movement of the tank body when a large force is applied to the tank body and the tank body is largely moved.

The anchor member is preferably one that withstands high tension and has corrosion resistance. The inexpensive member can be composed of a normal anchor and a rope fixed to the anchor. The rope preferably has a string-like body having a specific gravity similar to that of water or seawater. More specifically, liquid crystal resin ropes such as highly polymerized and highly crystalline polyethylene and aromatic polyamide are preferable. It should be noted that a corrosion-resistant ceramic, resin or metal rope or bar may be used.

As the anchor member, a pillar standing on the seabed can be used. Further, it may be configured by a pillar and a rope having one end fixed to the pillar and the other end fixed to the seabed. The column supports the load acting on the top of the column, and the column itself receives a pressing force in the axial direction. It is preferable that the pillars are two-dimensionally planted on the water floor with a predetermined interval. The bottom end of the column is preferably buried deep in the water bottom or erected on a foundation fixed to the water bottom. Considering the corrosion resistance, concrete piles, fiber reinforced rigid resin pipes and the like are preferable. Moreover, a tower made of a metal having corrosion resistance or a columnar frame having a truss structure may be used.

A water collecting device having a water collecting main body held on the water surface for collecting rainwater falling on the sea surface in the above-mentioned water storage tank, and a water feeding means for sending the water collected by the water collecting body to the water storage tank. can do.

The water collecting body can be composed of a frame having at least an upper part located above the sea surface and a planar body held by the frame and receiving rainwater. A sheet material such as a tent can be used as the planar body. In addition, a solar panel that produces a large amount of electric power during sunshine can be used as a planar body. In particular, combining solar panels and sheet materials, using solar panels at positions that receive sunlight efficiently, and using sheet materials at other positions to collect a large amount of power from the solar panels and a large amount of rainwater collection area to collect a large amount of rainwater. It is preferable that water is taken into account.

It is preferable that the planar member is appropriately inclined so that the received rainwater flows down to a predetermined position. Further, it is preferable that the solar panel is tilted to the south so as to be as perpendicular as possible to the sun's rays in relation to the installed latitude.

As the frame, it is preferable to use a pipe or a rod having corrosion resistance and high structural strength such as FRP. As the frame structure, it is preferable to use a truss structure capable of covering a wide sea surface, or a saw blade-shaped frame in which a roof is connected like a saw blade.

The lower part of the frame may be a float located at the sea level. Alternatively, the frame may be provided with a float to support the frame above the sea surface. Furthermore, the pillar material forming the frame may be a float. That is, a thick FRP pipe is filled with expanded polystyrene or the like, and the column material itself is used as a structural material and the portion of the column material below the sea surface is floated.

As the float formed as a separate body from the frame, a known foamed polystyrene having its surface reinforced with a resin sheet can be used by being fixed to the lower part of the float.

Further, as the float, a cylindrical bag or pipe line in which a fluid is enclosed can be used. The fluid is air, water, gas or the like, and if it is gas, it also acts as a float. If water is used as the fluid, it becomes a rigid member that is not subject to buoyancy. The tensile rigidity of the tubular bag or the pipe line containing the fluid is taken by the tensile strength of the sheet or film forming the bag or pipe line. The compression rigidity is taken by the compression pressure of the compressed fluid enclosed inside. The bending rigidity of the tubular bag or the pipe containing the pressure fluid is taken up by both the tensile rigidity of the sheet or film and the compression pressure of the compressed fluid.

As the water supply means, the sheet-like body receives water and collects water collected at a large number of predetermined positions and finally sends it to the above-water storage tank. The water received by the planar body and collected at a predetermined position is first collected by the primary water supply pipes, and further a large number of primary water supply pipes are collected in a small number of secondary water supply pipes,
If necessary, it can be collected further in the tertiary water pipe and finally poured into the water storage tank.

As the water supply means, a pump means for forcibly sending water may be provided if necessary. Furthermore, in order to avoid mixing of rainwater mixed with seawater, the concentration of salt collected is detected with a sensor, and rainwater with a large amount of salt is discarded, or rainwater containing a small amount of salt with limited use and salt content are almost eliminated. It is also possible to store rainwater that does not include it in different water storage tanks.

The sheet forming the tank main body is preferably a flexible sheet such as a rubber sheet, a plastic film or a plastic sheet. The strength of the sheet can be increased by embedding a reinforcing thread, a reinforcing wire, a reinforcing fiber or the like inside the sheet. A high strength sheet is convenient for stretching the sheet between the columns.

When the tension of the seat is insufficient, ropes, belts or other cords can be used. The cord may be integrated with the sheet, or the cord and the sheet may be fixed by other means.

[0036]

The operation and effect of the invention The floating water tank of the present invention floats on the water surface. The tank body is kept underwater by the anchor member while the upper part thereof is held above the water surface. The anchor member fixes the tank body at a predetermined position on the water surface. Water such as rainwater is stored in this tank body.

As the amount of water stored increases, the bottom of the tank body moves in a direction deeper than the water surface. When more water is stored, the stored water expands the tank main body, the bottom of the tank main body becomes deeper, and the pressure of the stored water causes the sheet constituting the tank main body to be in a tensioned and extended state.

If the tank body is provided with a lid,
It is possible to prevent unexpected foreign matter from getting into the tank body. Further, by providing a water supply port for supplying water and a water discharge port for pumping water to the water tank, it becomes easy to supply and discharge water. Further, by providing a pump in the tank body, it becomes easier to discharge water. This pump is provided with a pump float, the pump float is floated on the water surface of the stored water, and the pump is fixed on the pump float, whereby the arrangement of the pump is facilitated.

Air supply means for supplying air to the bottom of the water stored in the tank body may be provided. This can solve the problem of stored water spoiling.

Further, a frame-shaped sub-float and a sub-tank body whose upper end is held by the frame-shaped sub-float can be provided in the tank body. This sub tank body can be used to store different water than the tank body. For example, the tank body can be used to store rainwater having a high salt concentration among the rainwater that has fallen on the water surface, and the sub tank body can be used to store rainwater having a low salt concentration. The rainwater stored in the tank body can be used as industrial water, and the rainwater stored in the sub tank can be used as domestic water.

The water collecting device is the above-mentioned water storage tank provided with a water collecting body and water feeding means. This water collecting body is held on or on the water surface. Rainwater falls on the upper surface of the water collecting body, flows to a lower portion, and is collected in a predetermined portion.

The water sending means sends the rainwater received by the water collecting body to the water storage tank. Then, the water is stored in the water storage tank.

[0043]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A typical embodiment of a water storage tank and a water collecting device of the present invention will be described below with reference to the drawings. (Embodiment 1) The above-water storage tank A1 of the first embodiment of the present invention
The water collecting device B1 is, as shown in FIGS. 1 and 2, a regular quadrangle when viewed from a plane. In the frame-shaped float 1, four hollow pressure pipes 2 having an annular cross section are integrally fixed as waterproof walls on the four sides of the peripheral edge portion. The pressure tube 2 is made of a rubber sheet and has an air passage 3 formed therein, which is filled with high-pressure air. A bifurcated joint J made of fiber reinforced plastic between the ends of the four pressure tubes 2 which are biaxially orthogonal to each other.
And is integrally connected with good airtightness. Pressure tube 2
Is connected to a high-pressure air supply source (not shown) at an appropriate position to fill the inside with high-pressure air.

The pressure tube 2 holds the upper end of a water-impermeable sheet 4. The seat 4 and the pressure pipe 2 are fixed to each other with good airtightness via a seal member 7 by a bolt 5 and a nut 6 as a fixing tool. The sheet 4 is a square and is made of a rubber sheet as an elastic material. The rubber sheet 4 is formed with a bottomed bag-shaped tank body 8 that accommodates a predetermined amount of water therein. The rubber sheet 4 has a substantially flat plate shape whose deep bottom surface spreads in water such as the sea or lake. The four sides of the peripheral side surface, which are connected to the bottom surface of the rubber sheet 4, are formed so as to be able to hang in the water by adding the own weight of water stored in the own weight.

Inside the tank body 8 is provided a pump float F1 which floats above the surface of the water stored therein. A pump P1 for pumping the water stored inside the tank body 8 to the outside is provided above the pump float F1 and electrically connected to the battery 9.

In the above-mentioned water storage tank A1 of the first embodiment, one end of the four joints 12 of the float 1 is connected to the sea bottom via the wires 13 via the columns 14 as shown in FIGS. It is arranged in a position. A net N having a predetermined mesh is stretched between the adjacent wires 13 from the water surface to the seabed so as to prevent foreign matter from entering from the outside and prevent damage to the tank body 8.

The water collecting device B1 has a sheet-like lid 16 provided in the opening 15 of the tank body 8. The open ends of the water-impermeable sheet-like lid 16 on the four outer peripheral sides are held by the pressure pipe 2. The lid 16 and the pressure tube 2 are fixed to each other with good airtightness by a bolt 5 and a nut 6 as a fixing tool via a seal member 7 and a cord K.

The lid 16 is a square and is made of a rubber sheet as an elastic material. The lid 16 is provided with a shallow funnel-shaped water receiver 18 forming a water receiving surface 17 for collecting water on the inner peripheral side from the open end, and the water collecting body 10 is formed. The water receiving surface 17 of the water collecting device B1 has an opening 15 in the tank body 8 as shown in FIG.
Is covered with a slope facing the bottom portion 19.

At the bottom portion 19 of the water receiving surface 17, the water supply port 2 for supplying the water collected by the water receiving surface 17 to the inside of the tank body 8.
0 is provided. Further, the bottom portion 19 of the water receiving surface 17 is provided with a discharge port 21 for pumping the water collected on the water receiving surface 17 to another department. The water supply port 20 and the discharge port 21
Is equipped with a water pump 22 as a water supply means via a switching valve 23.

In the water channel 24 of the water collecting device B1, a salt sensor S1 for detecting the salt content of the collected water, and when the detected salt content is above a predetermined value, the water is stored in the water storage tank A1 other than the sea water storage tank A1. A drainage pump 25 for draining water is provided, and the tank body 8 is configured to store water having a salt content of a predetermined value or less.

At the bottom portion 26 of the tank body 8, an air pump 27 is installed which supplies air to mix the gas and liquid to form a circulating flow in order to prevent corrosion of the water stored in the tank body 8. The water receiving body 18 is provided with a substantially flat solar panel 28 on the water receiving surface 17 in which a plurality of power generation units accommodating solar cells that receive sunlight to generate power are connected and connected.

The above-structured above-water storage tank A1 and water collecting device B1 according to the first embodiment of the present invention floats on the water surface such as the sea surface, the lake surface, or the pond surface, and has a predetermined amount of rainwater therein. It is possible to enhance the added value of the floating structure without a water supply source that includes the tank body 8 that stores the water and a water collection body 10 that collects rainwater on the upper part and stores the rainwater in the tank body 8.

Further, the water collecting device B1 according to the first embodiment of the present invention.
By using a solar panel, it is possible to enhance the added value as a floating structure without a power source.
Furthermore, the above-water storage tank A1 and the water collecting device B1
Is a lightweight material that can secure a predetermined space, significantly reduces the cost of construction and makes it cheap, and it is easy to implement these additions. It is possible to actually secure the installation of a water supply source and a power source.

Further, in the above-water storage tank A1 and the water collecting device B1 of the first embodiment of the present invention, the frame-shaped float 1 is integrally formed with four hollow pressure pipes 2 having an annular cross section as waterproof walls on four sides of its peripheral edge. Since the air passage 3 that is fixedly fixed and is filled with high-pressure air is formed inside, the water can be prevented from entering the water collecting main body 10 by playing a role of a wave preventive against waves and the like. It has a flexible structure and can flexibly deal with a wide variety of complicated external forces such as water and wind.

In addition, in the above-water storage tank A1 of this embodiment, one end of the four joints 12 of the float 1 is shown in FIGS.
As shown in (1), the frame-shaped float 1 can be disposed at a fixed position on the water surface by being connected to the seabed via the columns 14 via the wires 13. Since the net N having a predetermined mesh is stretched between the adjacent wires 13 from the water surface to the seabed, foreign matter can be prevented from entering from the outside and damage to the tank body 8 can be suppressed.

The water collecting device B1 is provided with a sheet-like lid 16 at the opening 15 of the tank body 8 and forms a water receiving surface 17 for collecting water on the inner peripheral side from the open end thereof. And the water receiving surface 17 forms the opening 1 of the tank body 8.
The rainwater pouring from above the tank body 8 can be collected efficiently and accurately by covering and spreading 5 and providing a slope toward the bottom portion 19.

A water supply port 20 is provided at the bottom portion 19 of the water receiving surface 17.
The water collected on the water receiving surface 17 can be supplied to the inside of the tank main body 8 by providing the water receiving surface 17, and the discharge port 21 is provided at the bottom portion 19 of the water receiving surface 17, The water collected on the water surface 17 can be pumped out to other departments. Since the water supply port 20 and the discharge port 21 are equipped with the water supply pump 22 via the switching valve 23, it is possible to control the supply and the discharge of the collected water according to the use to other departments. . By providing the salt content sensor S1 in the water channel 24 of the water collecting device B1, it is possible to detect the salt content of the collected water, and when the salt content is equal to or more than a predetermined value, the water is stored in a place other than the above-water storage tank A1 such as the sea. The tank main body 8 can store water having a salt content of a predetermined value or less, and other various sensors can store fresh water containing no impurities.

The air pump 2 is attached to the bottom portion 26 of the tank body 8.
By providing 7, the air can be supplied to the stored water to mix the gas and the liquid to form a circulating flow, and the corrosion of the water stored in the tank body 8 can be suppressed. By installing a plurality of solar panels 28 on the upper part of the water receiving surface 17 of the water receiving body 18, it is possible to secure a power source for receiving sunlight to generate power. (Second Embodiment) A water storage tank A according to a second embodiment of the present invention.
2 and the water collecting device B2 are different from those in which the above-mentioned water storage tank A1 of the first embodiment is unified as shown in FIG.
A plurality of above-water storage tanks A1 and A2, which are internally and externally held at predetermined intervals, are double-connected and provided. Second
Since the above-water storage tank of the embodiment is substantially the same as the above-mentioned water storage tank A1 of the first embodiment, the above-mentioned water storage tank A2 and the water collecting device B2 mainly installed inside will be described in detail.

The above-water storage tank A2 of the second embodiment has a tank main body 8 held by the frame-shaped float 1 as a main body, and a frame-like float 1 on the inside of which is a fixture with four sides as anchor members. The frame-shaped sub-float 31 is held by the wire X or the like.
As a result, the sub-floats 31 are arranged inside the main float 1 at fixed positions so as to maintain a predetermined distance therebetween.

The sub-float 31 has a quadrangular rectangular bag-shaped sub-tank main body 38 formed of a rubber sheet 34 as an elastic material, and the upper end of the sub-tank main body 38 has a bolt 35 as a fixture.
The nut 36 and the seal member 37 are integrally held with good airtightness. The rubber sheet 34 has a substantially flat plate shape whose deep bottom surface spreads in water such as the sea or lake. The four sides of the peripheral side surface, which are connected to the bottom surface of the rubber sheet 34, are formed so as to be able to hang in the water by adding the own weight of the water stored in the own weight.

Inside the tank body 38, a pump float F2 that floats on the water stored inside is provided. At the upper part of the pump float F2, a pump P2 for pumping the water stored inside the tank body 38 to the outside is provided for the battery 11
Is electrically connected to.

The water collecting device B2 is provided with a sheet-like lid 32 at the opening 15 of the tank body 8. The open ends of the water-impermeable sheet-shaped lid 32 on the four outer peripheral sides are held by the pressure pipe 2. The lid 32 and the pressure tube 2 are fixed to each other with good airtightness by a bolt 5 and a nut 6 as a fixing tool via a seal member 7. The lid 32 is a square and is made of a rubber sheet as an elastic material. The lid 32 is provided with a shallow funnel-shaped water receiver 40 that forms a water receiving surface 39 that collects water on the inner peripheral side from the open end to form a water collecting body 30. The water receiving surface 39 of the water collecting device B2 is the tank body 8 as shown in FIG.
The opening 15 is covered with a slope and directed toward the bottom portion 41.

The bottom portion 41 of the water receiving surface 39 is provided with water supply ports 20 and 42 for supplying the water collected on the water receiving surface 39 into the tank body 8 and the tank body 38, respectively. Further, the bottom portion 41 of the water receiving surface 39 is provided with discharge ports 21 and 43 for pumping the water collected on the water receiving surface 39 to another department. The water supply ports 20, 42 and the discharge ports 21, 4
3, water supply pumps 22 and 44 are installed as water supply means via switching valves 23 and 45.

In the water channel 46 of the water collecting device B2, a salt sensor S2 for detecting the salt content of the collected water and when the detected salt content is above a predetermined value, the water is stored in a water storage tank A2 other than the sea water storage tank A2. A drainage pump 47 for draining water is provided, and the tank main body 38 is configured to store water having a salt content of a predetermined value or less.

At the bottom portion 49 of the tank body 38, an air pump 48 for supplying air to mix gas and liquid to form a circulating flow is installed in order to suppress corrosion of water stored in the tank body 38.

The water receiver 40 is provided with a substantially flat solar panel 28 on the water receiving surface 39, which is provided with a plurality of power generation units for accommodating solar cells which receive sunlight to generate power. (Third Embodiment) A water storage tank A according to a third embodiment of the present invention.
As shown in FIG. 4, the water collecting device B3 and the water collecting device B3 are substantially the same as the above-water storage tank A1 of the first embodiment except that the water collecting device B1 is not provided at the opening. B3 will be described in detail.

This above-water storage tank A3 and water collection device B3
Is a square when viewed from above. The above-water storage tank A3 has an opening 55 of a tank main body 58 made of a bottomed bag-shaped rubber sheet 54. The open ends of the rubber sheet 54 on the four outer peripheral sides are held by the pressure pipe 52. The rubber sheet 54 and the pressure tube 52 are attached to the bolt 5 as a fixing tool.
5 and a nut 56 are fixed via a seal member 57 with good airtightness.

The water collecting device B3 is formed of a rubber sheet 54 in which frame-shaped reinforcing fibers are embedded. The rubber sheet 54 has a water receiving body 51 of a bottomed funnel-shaped water collecting body which forms a water receiving surface 50 for collecting water by a frame-shaped open end serving as a waterproof wall and a flat portion on four sides of the rubber sheet 54.
The flat water receiving surface 50 of the water collecting device B3 is the water receiving body 5 of the water collecting body.
1, the water spreads continuously to the opening 53 at the open end, and the bottom portion 60 is sloped to one side so that the stored water can be circulated to the water collection channel 61.

The water collection channel 6 at the bottom portion 60 of the water receiving surface 50
1 is provided with a water supply port 62 for supplying the water collected on the water receiving surface 50 to the inside of the adjacent tank body 58.
Further, the bottom portion 60 of the water receiving surface 50 is provided with an outlet 63 for pumping the water collected on the water receiving surface 50 to another department. The water supply port 62 and the discharge port 63 are equipped with a water supply pump 64 as a water supply means via a switching valve 65. In the water channel 66 of the water collecting device B3, the salt sensor S3 for detecting the salt content of the collected water and when the detected salt content is equal to or more than a predetermined value, the water is drained to the sea or the like other than the above-water storage tank A3. A drain pump 68 is provided, and the tank body 5
8 is configured to store water having a salt content of a predetermined value or less.

The water receiving body 51 is provided with a substantially flat solar panel 69 on the upper part of the water receiving surface 50. The solar panel 69 is provided with a plurality of power generating units for accommodating solar cells which receive sunlight to generate power. The water receiver 51 is attached with a raft-shaped hollow tube V which is held at a predetermined interval at its lower end and integrally fixed by a wire 67 in a mutually orthogonal relationship. A cube-shaped float 70 is fixed to the raft-shaped hollow tube V via a wire 71 so that the water collecting device B3 can float above the water.

The above-mentioned water storage tank A3 and the water collecting device B3 of the third embodiment are a combination of independent ones. If necessary, the water storage tanks A3 and B3 each have a different size and a plurality of water storage tanks respectively. A3 and the water collecting device B3 can be combined. (Fourth Embodiment) A water collecting device B4 according to the fourth embodiment of the present invention is
As shown in FIG. 5, unlike the water collecting device of each of the above-described embodiments, the water receiving surface 81 of the water collecting body 80 is attached to the solar panel 8.
2 and the rubber sheet 83 are formed in a corrugated shape so that a plurality of them are connected and equipped.

The water collecting device B4 is a regular square when viewed from above. The water collecting device B4 is formed of a rubber sheet 83 in which frame-shaped reinforcing fibers are embedded. Rubber sheet 83
A water funnel 84 having a bottomed funnel shape is formed on the four sides of the peripheral edge portion thereof to form a water receiving surface 81 for collecting water by a frame-shaped open end serving as a waterproof wall and a flat portion.

The flat water receiving surface 81 of the water collecting device B4 is shown in FIG.
As shown in FIG.
The bottom portion 86 is sloped toward one side so that the stored water can be distributed to the water collection channel 87.

Water collecting channel 8 at the bottom portion 86 of the water receiving surface 81
7 is provided with a water supply port 88 for supplying the water collected on the water receiving surface 81 to the inside of the adjacent tank body. Further, the bottom portion 86 of the water receiving surface 81 is provided with a discharge port 89 for pumping the water collected on the water receiving surface 81 to another department.
The water supply port 88 and the discharge port 89 are equipped with a water supply pump 90 as a water supply means via a switching valve 91.
In the water channel 92 of the water collecting device B4, a salt sensor S4 for detecting the salt content of the collected water, and when the detected salt content exceeds a predetermined value, the water is drained to a place other than the above water storage tank, for example, to the sea or the like. A pump 93 is provided, and the tank body is configured to store water having a salt content of a predetermined value or less.

The water receiving body 84 has a substantially flat solar panel 82 and a rubber sheet 83 which are corrugated and each of which is provided with a plurality of power generation units for accommodating solar cells which receive sunlight to generate electricity on substantially the entire upper surface of the water receiving surface 81. In addition, it is erected on the upper end of the water collecting main body 80 through the wire 94 and the pillar 95, respectively, and is integrally arranged. The water receiving body 84 is attached with a raft-shaped hollow tube 97 whose lower end is held at a predetermined interval and which is integrally fixed by a wire 96 in a mutually orthogonal relationship. Raft-shaped hollow tube 9
A cube-shaped float 98 is fixed to 7 through a wire 99 so that the water collecting device B4 can float above the water.

In the water collecting device B4 of the third embodiment, one end of a four-sided joint 100 provided on a raft-shaped hollow tube 97 is connected to the seabed via a wire 101 and a support column 104 to a fixed position on the water surface. Each is arranged. A net N with a predetermined mesh is stretched between the adjacent wires 101 from the water surface to the seabed to prevent foreign matter from entering from the outside and to collect water.
4 is configured to prevent damage. (Fifth Embodiment) A water storage tank A according to a fifth embodiment of the present invention.
5 is the frame-shaped float 1 as shown in FIG.
A plurality of tank main bodies 108 held by 10 are connected to form a water storage tank group. Besides, in the above-water storage tank A5, the frame-shaped float 110 is used as a main tank 111, and the tank main body 108 is provided inside the tank.
The sub-tank 119 includes a frame-shaped sub-float 113 held by the fitting 112 and a bottomed bag-shaped sub-tank body 118 formed of a sheet whose upper end is held by the sub-float 113 by a fixing tool. As a result, it is possible to construct a floating structure above the water over a wide range compared to the above-mentioned water storage tanks of the respective embodiments, and to secure a large-scale water supply source. (Sixth Embodiment) A water collecting apparatus B5 according to the sixth embodiment of the present invention is
As shown in FIG. 7, a plurality of solar panels 201 are connected to the water receiving surface 200 held by the frame-shaped float 210 to form a water collecting body group. As a result, it is possible to construct a floating structure above the water over a wider area than that of the water collecting device according to each of the above-described embodiments, and to secure a large-scale water collecting and power source (seventh embodiment). The water storage tank of the embodiment has a tank body 308 for storing water, as shown in FIGS.
301 for holding the tank body on the water surface
And consists of.

In this embodiment, the tank body 308 has a rectangular shape when viewed from the top, and has a long side of 15 m and a short side of 4 m. This tank body has a trapezoidal shape in which the upper bottom is longer than the lower bottom when viewed from the side, and the bottom is ship-bottomed and has the upper part, so the inside is a closed space. The tank body is made of a rubber sheet. A flat bar F is fixed to the short side in order to maintain the shape of the tank body 308.

The float 301 is for holding the upper part of the tank body 308 above the water surface, and comprises a pressure pipe 302 and a float fixing belt 333. The pressure tube 302 is
It is made of resin and is a hollow cylinder with a length of about 1 m and an inner diameter of about 70 cm, and the inside of the cylinder is filled with air. Therefore, when the float is fixed to the tank body, the upper part of the tank can be kept underwater while being held on the water surface. This float 3
01 are fixed to the four ends on the short side of the tank body 308 by float fixing belts 333, respectively. The float fixing belt 333 is fixed to the sheet 304, and the float is fixed by being wrapped around the entire side surface of the float. The belt is made of a rubber sheet, like the tank body. Further, the position of the float can be fixed by the above-mentioned flat bar F.

The pipe H of this embodiment is installed above the tank body 308. The pipe H has three hoses 332.
And a flange for fixing the hose to the seat. The flange is arranged so as to sandwich the upper portion of the tank body, and is fixed with bolts, nuts, and the like. Therefore, if a water pump or the like is assembled, water can be sent to the inside or outside of the tank via the flange.

[Brief description of drawings]

FIG. 1 is a cross-sectional side view of essential parts of a water storage tank and a water collecting device according to a first embodiment of the present invention.

FIG. 2 is a plan view of a water storage tank and a water collecting device according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional side view of essential parts of a water storage tank and a water collecting device according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional perspective view of essential parts of a water storage tank and a water collecting device according to a third embodiment of the present invention.

FIG. 5 is a cross-sectional perspective view of a main part of a water collecting device according to a fourth embodiment of the present invention.

FIG. 6 is a plan view of a water storage tank according to a fifth embodiment of the present invention.

FIG. 7 is a plan view of a water collecting device according to a sixth embodiment of the present invention.

FIG. 8 is a plan view of a water storage tank according to a seventh embodiment of the present invention.

FIG. 9 is a cross-sectional side view of essential parts of a water storage tank according to a seventh embodiment of the present invention.

[Explanation of symbols]

A1, A2, A3, A4, A5 ... Water storage tanks B1, B2, B3, B4, B5 ... Water collecting device 1 ...
Float 2 ... Pressure tube 4 ... Sheet 8 ... Tank body F1, F2, F3 ... Pump float P1, P2, P3
... Pumps 10, 30 ... Water collecting body 13 ... Wires 28, 69, 82 ... Solar panels 17, 39,
50, 81 ... Water receiving surface

Claims (18)

[Claims] 1. A water storage tank comprising: a bag-shaped tank main body having at least a side portion and a bottom portion formed of a sheet; and an anchor member for fixing the tank main body. 2. The above-water storage tank according to claim 1, wherein the tank body has an upper portion and forms an enclosed space therein. 3. The above-water storage tank according to claim 2, wherein the tank body has a long tubular shape. 4. The above-water storage tank according to claim 3, wherein the tank body is used as a floating breakwater. 5. The above-water storage tank according to claim 4, wherein the tank body is arranged along the edge of the wave preventer with a space from the wave preventer. 6. The above-water storage tank according to claim 4, wherein the tank body has an annular shape that defines a wave-proof water surface inside. 7. The above-water storage tank according to claim 1, further comprising a net which covers at least a part of the surface of the tank body and protects the tank body. 8. The floating storage tank according to claim 1, wherein the tank body has at least four locking portions, and one end of the anchor member is locked to the locking portions. 9. The above-water storage tank according to claim 8, wherein the tank body has a float, and the locking portion is provided on the float. 10. The floating storage tank according to claim 9, wherein the float is frame-shaped, and an upper end portion of the tank body is fixed to the frame-shaped float. 11. The water surface according to claim 10, further comprising a pump float that is floated on the surface of the water stored in the tank body, and a pump that is held by the pump float and pumps out the water in the tank body. Water storage tank. 12. The water storage tank according to claim 10, further comprising a sub tank having at least a side portion and a bottom portion in the tank body. 13. The above-water storage tank according to claim 1, wherein the tank body has a water supply port for supplying water and a discharge port for pumping water. 14. The above-water storage tank according to claim 13, wherein the tank body has an air supply means for supplying air to a bottom portion of the tank body. 15. A water storage tank, a water collecting body held on the water surface or on the water surface, and a water feeding means for sending the water collected by the water collecting body to the water storage tank. Water collecting device. 16. The water supply means has a salt sensor for detecting salt content of the collected water, and a drain means for discharging the water to a place other than the water storage tank when the detected salt content is a predetermined value or more. Item 15. The water collecting device according to item 15. 17. The water collecting apparatus according to claim 15, wherein the water collecting body has a water receiving body that forms a water receiving surface, the water receiving body, and a floating means that holds the water receiving body above the water surface. 18. The water collecting apparatus according to claim 17, wherein at least a part of the water receiver is a solar panel.