JP2000117282A - Unit type floating water purification equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the purification equipment the equipment cost, etc., of which can be reduced by simplifying the equipment structure and also, which is capable of purifying water being at a desired depth. SOLUTION: This equipment has a structure formed by unitizing an aerator 5 and a solar cell panel 4 used as a power source for the aerator 5 into a unit and fixing the unit to a raft 1 floating on the surface of water, wherein the aerator 5 is provided with: a water lifting pipe 6; a water pumping tank 7 for receiving water lifted through the lifting line 6; a pump 8 placed within the water pumping tank 7; an aeration tank 9 placed adjacently to the water pumping tank 7; a water spray pipe 10 for delivering pressurized water by the pump 8 to the inside of the aeration tank 9; and a delivery pipe 11 for returning water in the aeration tank 9 to the outside of the equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit type water purification device.

[0002]

2. Description of the Related Art In an inner bay in summer, etc., seawater is layered up and down, the upper layer is formed by warm seawater warmed by the sun, and the lower layer is formed by cold seawater. Then, convection hardly occurs due to this two-layering phenomenon, and oxygen in the atmosphere cannot reach the lower layer, thereby contaminating seawater.

[0003] Such a phenomenon occurs not only in seawater but also in lakes and marshes.

Conventionally, such contaminated water has been purified,
In order to prevent water pollution, an air pump is installed on land and the air pump is used to forcibly send air to the lower part of the water, or a propeller is placed in water and the propeller is rotated. There is known a method of forcibly generating convection.

[0005]

However, any of the above methods has a problem that it is large-scale and heavy, and that it requires enormous equipment costs.

SUMMARY OF THE INVENTION In view of the above problems, the present invention makes it possible to reduce the cost of equipment by using simple equipment, to purify water of a desired depth with a high degree of freedom in design and a high cost-effectiveness ratio. The purpose of the present invention is to provide a safe water purification device.

[0007]

The unit type water purification system of the present invention comprises a raft floating on the sea, an aeration device,
The solar cell panel as a power supply of the aeration apparatus is unitized and assembled.

Here, the aeration device is provided with a pumping pipe, a pumping tank for taking in water through the pumping pipe, a pump disposed in the pumping tank, and a pump provided adjacent to the pumping tank. It is preferable to include an aeration tank to be provided, a water spray pipe for discharging seawater pressurized by the pump into the aeration tank, and a discharge pipe for returning water in the aeration tank to the outside. .

Further, it is preferable that the pump is a DC pump that operates directly by a DC output of the solar cell panel.

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a conceptual diagram of a unit type water purification device according to an embodiment.

In FIG. 1, a unit-type water purification device (hereinafter, also simply referred to as a water purification device) includes a raft 1 floating on water, for example, on the sea. Hereinafter, a case where the raft 1 is floated on the sea will be described as an example.

The raft 1 includes a main body 2 and a float member 3 for giving buoyancy to the main body 2.

The solar cell panels 4 are arranged on the upper surface of the raft body 2 in accordance with the number of aeration devices 5 serving as loads.

Each of the aeration devices 5 is incorporated in the raft body 2. Each aeration device 5 is provided with a pumping pipe 6, a pumping tank 7 for taking in seawater through the pumping pipe 6, and a DC power supplied from the corresponding solar cell panel 4. An operating pump 8, an aeration tank 9 provided adjacent to the pumping tank 7, a sprinkling pipe 10 for discharging seawater pressurized by the pump 8 into the aeration tank 9, and a purified seawater in the aeration tank 9. And a discharge pipe 11 for returning to the sea. The solar cell panel 4 has a scale (one unit) having a power generation capacity required for a load of one unit of the aeration device, and each combination of the solar cell panel and the aeration device is handled as one unit when assembled. Although the solar cell panel may be placed separately from the aeration device, it is preferable to install the solar cell panel above the aeration device in order to avoid a temperature rise of the aeration device due to sunlight.

In addition, the power source may be replaced with a solar cell panel, for example, a storage battery, an engine generator, an external power source, or any other appropriate power source depending on the usage of the purifier.

The water purification apparatus thus constructed is configured such that a pump 8 is provided with seawater taken into a pumping tank 7 and an aeration tank 9.
Is operated to purify seawater as follows.

When the pump 8 is operated, the seawater in the water pumping tank 7 is pressurized by the pump 8 and discharged from the water spray pipe 10 into the aeration tank 9 in a shower or spray form. By this discharge, seawater is aerated to purify seawater. Then, as the seawater moves from the inside of the pumping tank 7 to the inside of the aeration tank 9, the seawater near the seabed B is taken into the pumping tank 7 through the pumping pipe 6. On the other hand, the seawater discharged into the aeration tank 9 does not rise in temperature because it is deprived of heat of vaporization by being made into a shower state or a spray state. Is returned to. The returned seawater stays near the seabed B because there is no temperature rise due to aeration. In addition, the seawater level L1 in the pumping tank 7
The rated output of the pump 8 and the number and diameter of the pump 8 and the discharge pipe 11 are set in advance so that the sea surface L2 in the aeration tank 9 keeps a substantially constant height position.

As described above, when the pump 8 is operated, the seawater near the seabed B is taken into the water pumping tank 7 and is aerated by being pressurized by the pump 8 and discharged from the water spray pipe 10 into the aeration tank 9. It is purified, and after this purification, it is returned near the seabed B. Thereby, purification of seawater is performed. In addition, such circulation of seawater induces convection in the sea,
It also causes seawater purification by convection.

2 to 9 show one embodiment of the present invention.
2 and 3 are a plan view and a side view of the water purification device, respectively. FIG. 4 is a plan view of a lower part of a raft of the water purification device.
FIG. 6 is a side view of a part of the raft, FIG. 7 is a plan view of an aeration device of the water purification device, and FIG.
FIG. 9 shows a side view of the aeration device, and FIG. 9 shows an electric wiring diagram of the water purification device.

2 to 9, the water purification apparatus includes a raft 20 floating on water, for example, on the sea. Hereinafter, a water purification device using a solar cell panel as a power supply will be described by taking a case where the raft 20 floats on the sea as an example. In addition, this apparatus is not limited to a raft dedicated to a water purification device, and may be provided, for example, in a raft for aquaculture, a recreational fishing raft, or the like.

One end of each of the four ropes 21 (FIGS. 2 and 3) is connected to a raft 20, and the other end is connected to an anchor block 23 on the seabed via a buoy 22. Held in position. In addition, the anchor block 23
It is installed on the sea floor B at a water depth of, for example, about 15 m.

The raft 20 includes a main body 24 and a plurality of float members 25.

The raft body 24 includes a base frame 26 (FIGS. 2, 3, 4, and 6) framed vertically and horizontally, and a plurality of columns 27 (FIGS. 3 and 4) erected at appropriate positions on the base frame 26. , 6), an upper frame 28 (FIGS. 3, 5, and 6) framed on a plurality of columns 27, and a top plate 29 (FIGS. 2, 3, and 6) laid on the upper surface of the upper frame 28.
5, 6). The base frame 26 is formed to have a size of about 12 m in length and width, for example, and the column 27 has a size of about 1.5 m in height.

A plurality of float members 25 (FIGS. 3, 4, and 6)
Is made of a polystyrene foam material, is disposed at an appropriate position on the lower surface side of the base frame 26, and gives buoyancy to the raft body 24.

Solar cell panel 30 (FIGS. 2, 3, 5, and 6)
Are provided on the upper surface of the raft body 24 in accordance with the number of aeration devices.

A plurality of aerators 31 (FIGS. 4, 6, 7, 8)
Are fixed to the concave portions of the base frame 26 of the raft body 24 by the mounting brackets 32 (FIGS. 6, 7, and 8). The aeration device 31 has a length and width of, for example, 1.7 m.
It has a dimension of about 1.3 m.

Each of the aerators 31 is unitized to facilitate installation, and as shown in FIGS. 7 and 8,
A pumping tank 33 and an aeration tank 34 are provided.

The pumping tank 33 has an appropriate number of water inlets 35. It is desirable that there be a plurality of water inlets 35 for the purpose of preventing operation stop due to clogging or the like. The pumping pipe 36 (FIG. 3) is connected to each water inlet 35, and the tip of the pumping pipe 36 opens near the seabed B.

A plurality of submersible pumps 37 are provided in the pumping tank 33. As shown in FIG. 9, each submersible pump 37 is connected to a solar cell panel 30 via a terminal block 38 and a breaker 39.
And a DC pump that operates upon receiving a supply of DC power. For example, a configuration is provided in which four pumps 37 are provided in each aeration device 31, and the DC output of two solar cell panels 30 connected in parallel is directly supplied to each pump 37 via a terminal block 38 and a breaker 39. Then, this is configured as one unit.

The aeration tank 34 is provided adjacent to the pumping tank 33. The aeration tank 34 has a water discharge port 40 (FIGS. 7 and 8). The discharge pipe 41 (FIG. 3) is connected to the water discharge port 40, and the tip of the discharge pipe 41 opens near the seabed B. The plurality of water pipes 42 (FIGS. 7 and 8) are connected to the corresponding submersible pumps 37, respectively, and are arranged above the aeration tank 34. A flow meter 43 (FIGS. 7 and 8) is appropriately provided between the sprinkler pipe 42 and the corresponding submersible pump 37 to check the operation.

Next, the operation of the water purification apparatus configured as described above will be described.

When the water purification device is floating on the sea, seawater near the seabed B enters the pumping tank 33 through the pumping pipe 36 and the water inlet 35, and the seawater is also stored in the aeration tank 34. Contains. In this state, when the pump 37 operates, the seawater in the water pumping tank 33 is pressurized by the pump 37 and discharged from the water spray pipe 42 into the aeration tank 34. By this discharge, seawater is aerated to purify seawater. Then, as the seawater moves from the inside of the pumping tank 33 to the inside of the aeration tank 34, the seawater near the sea bottom B is taken into the pumping tank 33 through the pumping pipe 36. On the other hand, aeration tank 3
4 discharges into the water discharge port 40 and the discharge pipe 41.
Move to the vicinity of the seabed B via. The rated output of the pump 37 and the pumping pipe 3 are set so that the sea level in the pumping tank 33 and the sea level in the aeration tank 34 are maintained at a substantially constant height.
6 and the number and diameter of the discharge pipes 41 are set in advance.

As described above, when the pump 37 operates, the sea bottom B
The nearby seawater is taken into the pumping tank 33, is pressurized by the pump 37, is discharged from the sprinkler pipe 42 into the aeration tank 34, is aerated and purified, and after this purification, is returned to the vicinity of the seabed B. Thereby, purification of seawater is performed. In addition, such circulation of seawater induces convection in the sea, and seawater is purified by convection.

The water purification apparatus according to the present embodiment has a raft 2 on water.
0, and the aeration device 3 unitized in this raft 20
1, and the work of attaching the aeration device 31 to the raft 20 can be performed relatively easily by attaching the aeration device 31 to the recess of the base frame 26 via the attachment bracket 32. Also, the aeration device 31
Can be relatively easily added or replaced.

The aeration device 31 is provided with the solar cell panel 3.
The DC power from 0 is supplied directly to the pump 37 via the terminal block 38 and the breaker 39. In general, in a system using a solar cell as a power source, there are many examples of providing auxiliary equipment such as a rechargeable battery for charging the electromotive force of the solar cell and an inverter for converting DC to AC. Since almost no auxiliary equipment is provided as described above, almost no countermeasures against salt and corrosion are required for the auxiliary equipment, so that the weight can be reduced and the maintenance is facilitated.

[0037]

According to the present invention, the facility cost can be reduced by using a simple facility in which an aerator and a solar cell panel as a power supply of the aerator are unitized on a raft floating on the water. It is possible to provide a water purification device capable of purifying water at a desired depth, which has a large degree of freedom in design and a high cost-effectiveness ratio. That is, design,
It becomes possible to increase or decrease the number of units as appropriate according to the equipment budget scale, etc., to attach them to aquaculture rafts, recreational fishing rafts, etc., and to install the raft at any position. Further, since the movable raft is used, the aeration device can be installed at an arbitrary position on the water.

Further, the aeration device includes a pumping pipe, a pumping tank for taking in water through the pumping pipe, a pump disposed in the pumping tank, and an aeration tank provided adjacent to the pumping tank.
By having a sprinkler pipe for discharging water pressurized by the pump into the aeration tank and a discharge pipe for returning the water in the aeration tank to the outside, a desired depth such as near the sea bottom with a simple configuration Water can be purified efficiently.

Further, by using a DC pump which is directly operated by the DC output of the solar cell panel, the power supply system of the pump can be simplified and maintenance can be facilitated.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a unit type water purification device according to an embodiment of the present invention.

FIG. 2 is a plan view of a unit type water purification device according to an embodiment of the present invention.

FIG. 3 is a side view of the water purification device.

FIG. 4 is a plan view of a lower portion of a raft of the water purification device.

FIG. 5 is a partially cutaway plan view of the upper part of the raft.

FIG. 6 is a side view of a part of the raft.

FIG. 7 is a plan view of an aeration device of the water purification device.

FIG. 8 is a side view of the aeration apparatus.

FIG. 9 is an electric wiring diagram of the water purification device.

[Explanation of symbols]

 1,20 Raft 4,30 Solar panel 5,31 Aerator 6,36 Pumping pipe 7,33 Pumping tank 8,37 Pump 9,34 Aeration tank 10,42 Sprinkler pipe 11,41 Discharge pipe

Claims (4)

[Claims] An aeration device is provided on a raft floating on the water,
A unit-type water purification system, wherein a solar cell panel as a power supply of the aeration device is unitized and assembled. 2. The pump according to claim 1, wherein the aeration device includes a pumping pipe, a pumping tank that takes in water through the pumping pipe, a pump disposed in the pumping tank, and a pumping tank. A unit provided with an aeration tank provided adjacently, a water spray pipe for discharging water pressurized by the pump into the aeration tank, and a discharge pipe for returning water in the aeration tank to the outside. Type water purification system. 3. The unit type water purification device according to claim 2, wherein the pump is a DC pump directly operated by a DC output of the solar cell panel. 4. An aeration device and a power supply for the aeration device, wherein the aeration device is disposed in the pumping tank, a pumping tank for taking in water through the pumping pipe, and the pumping tank. A pump, an aeration tank provided adjacent to the pumping tank, a sprinkler pipe for discharging water pressurized by the pump into the aeration tank, and a discharge pipe for returning water in the aeration tank to the outside. A water purification device characterized by comprising: