JP3640607B2 - Purification equipment for rivers and lakes - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a purification device for rivers, lakes and marshes, rivers and lakes, etc. for decomposing and purifying blue-green algae, algae and the like floating on the surface of harbors, sea areas and the like.
[0002]
[Prior art]
If the algae and algae floating on the water surface of rivers and lakes are left as they are, the density of overgrowth will increase and they will rot and pollute the water. In such operations for removing sea cucumbers and algae, for example, it has been conventionally performed to collect and collect from the work boat using a net or the like. Since such work is manually collected, there is a limit to work efficiency, and in the case of a large area lake or the like, the work time becomes considerably long.
[0003]
On the other hand, recently, purification devices that use ozone to destroy phytoplankton cells such as sea cucumbers have been adopted, and purification work for lakes and rivers has become much more efficient.
[0004]
[Problems to be solved by the invention]
However, the conventional purification apparatus is mainly one that blows ozone into water or collects and processes sludge-like rots deposited on the bottom of the water. For this reason, especially for sea cucumbers and algae floating on the surface of the water, there is still no choice but to remediate the rivers and lakes.
[0005]
Then, an object of this invention is to provide purification apparatuses, such as a river and a lake, which can improve a purification degree by efficiently decomposing | disassembling the water-bloom and algae which float on the water surface, and discharge | releases it in water.
[0006]
[Means for Solving the Problems]
The purification apparatus for rivers and lakes of the present invention includes a float with adjustable water level, a pump casing held by the float and having an upper end opened, a submersible pump built in the pump casing for sucking water on the water surface side, An injection tube connected to the pump casing; a lysis chamber connected downstream of the injection tube; a discharge pipe connected to the lysis chamber; a supply pipe connected to the injection tube and supplying a gas such as ozone; It is characterized by having.
[0007]
In the present invention, the water level is adjusted by the float, the purification device is placed under the surface of the water, floated, and ozone can be sucked into the water containing sea lions and algae in the vicinity of the water surface sucked by the submersible pump. Can be destroyed and purified to return to the water from the discharge pipe.
[0008]
In the present invention, the float is divided into a plurality of rings, and the pump casing is positioned at substantially the center of the annular arrangement of the floats, and the water level relative to the water surface is adjusted at the outer periphery of the upper end of the float. It can be set as the structure provided with the adjustment ring so that raising / lowering operation was possible.
[0009]
In this configuration, in addition to the water level adjustment by the float, the level up to the top of the water level adjustment ring and the water surface can be set finely by raising and lowering the water level adjustment ring, and efficiently sucking sea lions and algae floating on the water surface Can do.
[0010]
Moreover, it is good also as a structure provided with the flow regulating valve for restrict | squeezing a flow path downstream from the said dissolution chamber and raising the internal pressure of the said dissolution chamber.
[0011]
In this configuration, when the water into which ozone is injected flows into the dissolution chamber, the internal pressure of the dissolution chamber can be increased by reducing the valve opening degree of the downstream flow rate adjusting valve. For this reason, the penetration of ozone is promoted with respect to the cells of the blue-green algae and algae, and the blue-green algae and the algae can be reliably decomposed.
[0012]
Furthermore, it is good also as a structure provided with the solar panel located above the said float and above a water surface as a power supply of the said submersible pump.
[0013]
In this configuration, since the submersible pump can be operated using the solar panel as a power source, the purification work can be performed by remote control operation without supplying power from the ground side.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 is a schematic longitudinal sectional view showing the entire purification apparatus of the present invention, and FIG.
[0016]
In the figure, a submersible pump 2 is coaxially incorporated in a cylindrical pump casing 1, and an injection tube 3 is coaxially connected to a lower end of the pump casing 1. A stay 4 is fixed to the injection tube 3 so as to extend in the radial direction, and four stays 5 having a fan-like planar shape are connected and supported by these stays 4. A melting chamber 6 having a circular planar shape is coaxially connected to the lower end of the injection tube 3, and a discharge pipe 7 that can be moved up and down is connected to a discharge cylinder 6 a protruding from the lower end of the dissolution chamber 6. ing.
[0017]
The pump casing 1 is open at the upper end, and the water surface W.V. Water near L is sucked from the upper end opening of the pump casing 1. The injection tube 3 is a nozzle having a throat 3a by narrowing the middle of the flow path, and an oxygen or ozone supply pipe 8 is connected to an opening 3b opened immediately downstream of the throat 3a. By connecting the supply pipe 8 immediately downstream of the throat 3a in this manner, oxygen or ozone is supplied to the portion where the flow of water is accelerated by the throat 3a and the negative pressure is downstream of the throat 3a. can do. The float 5 is disposed so as to surround the pump casing 1 and the injection tube 3 by the stay 4, and is provided with a peacock 5b having a water supply valve 5a at the lower end and an opening / closing valve mechanism for venting the air at the upper end side. ing. In FIG. 2, the water supply valve 5a and the peacock 5b are omitted. A butterfly valve type flow control valve 6b is incorporated in the middle of the discharge cylinder 6a of the dissolution chamber 6, and the opening degree of the internal flow path is adjusted by manual operation. A discharge direction adjusting plate 9 that can change the water discharge angle is attached to the lower end of the discharge pipe 7. The discharge direction adjusting plate 9 is, for example, two plates, the upper ends of which are connected by a hinge 9a, and a holding rod 9b that vertically passes through the flange 7a at the lower end of the discharge pipe 7 is connected. With such a configuration and the discharge direction adjusting plate 9, the inclination angle of the discharge direction adjusting plate 9 can be arbitrarily changed by changing the height of the holding rod 9b.
[0018]
A water level adjusting ring 10 is provided on the outer peripheral surface of the upper end of the four floats 5 so as to be movable up and down. The water level adjusting ring 10 is disposed so as to surround the four floats 5 as shown in FIG. 2, and the position in the vertical direction can be changed by the height adjusting mechanism shown in FIG. The height adjusting mechanism includes a long hole 10 a that is vertically opened in the water level adjusting ring 10, and a bolt that is inserted into the long hole 10 a and screwed into the float 5 to fix the water level adjusting ring 10 to the float 5. 10b.
[0019]
Above the float 5, a solar panel 11 serving as a power source for driving the submersible pump 2 is disposed. The solar panel 11 is fixedly held by a rod 11 a raised from the upper end of the float 5, and the submersible pump 2 is operated by passing the wiring 11 b between the submersible pump 2. The operation of the submersible pump 2 is performed by operating a remote controller from the ground, and a controller (not shown) for this operation is provided between the solar panel 11 and the submersible pump 2. .
[0020]
On the other hand, an oxygen supply unit 12 and an ozone supply unit 13 are provided on the ground side. The oxygen supply unit 12 and the ozone supply unit 13 are driven by a common solar panel 14 and are provided with solenoid valve type on-off valves 12a and 13a, respectively.
[0021]
In the above configuration, the purification apparatus performs the purification work in a state where it is floated in water by the buoyancy of the float 5. In this case, the float 5 is supplied with water to the float 5 by opening the water supply valve 5a, and the upper end thereof is the water surface W.V. It adjusts so that it may become about 20-100 cm from L. The height of the water level adjusting ring 10 is set so that the upper end of the water level adjusting ring 10 The height is adjusted from L to about 5 to 50 cm. Accordingly, when the submersible pump 2 is operated by operating the remote controller, the water surface W.P. L near the water level adjustment ring 10 is sucked, and the water surface W.V. The auko and algae floating in L can be sent into the pump casing 1.
[0022]
Simultaneously with the operation of the submersible pump 2, the ozone supply unit 13 is operated and the on-off valve 13 a is opened to feed ozone into the injection tube 3 from the supply pipe 8. Since the supply pipe 8 is connected immediately downstream of the throat 3 a of the injection tube 3, ozone enters the injection tube 3 due to a pressure reduction effect due to an increase in the flow rate of water containing water and algae pumped by the submersible pump 2. . The supplied ozone flows toward the dissolution chamber 6 while being contained in water.
[0023]
Here, the flow rate adjustment valve 6b reduces the valve opening degree to some extent to make it easy for the water from the injection tube 3 and ozone contained therein to temporarily stay in the dissolution chamber 6. By such an operation, the pressure of water inside the dissolution chamber 6 can be increased, and dissolution of ozone into water is promoted. Injecting ozone destroys phytoplankton and algae cells such as sea cucumber, and also promotes penetration of ozone into the cells by pressurization.
[0024]
The water containing the mushrooms and algae decomposed in the dissolution chamber 6 is discharged into the water from the discharge cylinder 6a and the discharge pipe 7. At this time, the flow of water discharged by the discharge direction adjusting plate 9 provided at the lower end of the discharge pipe 7 is diffused, and the flow does not directly hit the bottom of the water. Accordingly, a breathable anaerobic layer 52 is formed on the sludge layer 51 at the bottom of the water, and at the same time, an organic aerobic layer 53 is formed by a component obtained by decomposing blue seaweed and algae, and this aerobic layer 53 serves as fish food. .
[0025]
As described above, the operation of the submersible pump 2 and the supply of ozone to the injection tube 3 cause the water surface W.P. The blue-green algae and algae floating in L can be collected and efficiently decomposed.
[0026]
Further, if oxygen is supplied to the injection tube 3 by operating the oxygen supply unit 12 instead of using ozone, oxygen can be dissolved in water in the dissolution chamber 6. For this reason, since the water discharged | emitted from the discharge pipe 7 has high dissolved oxygen concentration, the dissolved oxygen of a lake can be increased and it can utilize suitably for aquaculture.
[0027]
【The invention's effect】
In the present invention, water near the surface of the water is sucked with an underwater pump, ozone and oxygen are added and dissolved, and released into the water, so that water and algae near the surface of the water can be removed and these can be removed quickly when using ozone. Can be disassembled. Therefore, as compared with the conventional purification device, there is no need to manually collect the sea cucumbers floating on the water surface, and the purification operation can be performed efficiently and with a high degree of purification.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional view showing the entire purification device of the present invention.
FIG. 2 is a plan view of a main part of the purification device of FIG.
FIG. 3 shows a structure for attaching a water level adjusting ring to a float, wherein (a) is a front view of the main part, and (b) is a longitudinal sectional view of the main part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pump casing 2 Submersible pump 2a Impeller 3 Injection tube 3a Throat 3b Opening 4 Stay 5 Float 5a Water supply valve 5b Peacock 6 Dissolution chamber 6a Discharge cylinder 6b Flow adjustment valve 7 Discharge pipe 7a Flange 8 Supply pipe 9 Discharge direction adjustment plate 9a Hinge 9b Holding rod 10 Water level adjustment ring 10a Long hole 10b Bolt 11 Solar panel 11a Rod 11b Wiring 12 Oxygen supply unit 12a Open / close valve 13 Ozone supply unit 13a Open / close valve 14 Solar panel

Claims (3)

A float with adjustable water level, a pump casing held by the float and having an open upper end, a submersible pump built in the pump casing for sucking water on the water surface side, an injection tube connected to the pump casing, and the injection A lysis chamber connected downstream of the tube; a discharge pipe connected to the lysis chamber; and a supply pipe connected to the injection tube for supplying a gas such as ozone. The float is divided into a plurality of rings. The pump casing is positioned at substantially the center of the annular arrangement of the float, and a water level adjusting ring is provided on the outer periphery of the upper end of the float so as to surround the float, and the water level adjusting ring is provided. Is adjusted to adjust the level difference between the top of the water level adjustment ring and the water surface. Purification system of rivers and lakes, etc., characterized in that those provided operably. Purifier such as rivers and lakes according to claim 1, characterized in that it comprises a flow control valve to increase the internal pressure of the dissolution chamber to focus the flow path downstream of the melting chamber. The apparatus for purifying rivers and lakes according to claim 1 or 2 , further comprising a solar panel positioned above the float and above the water surface as a power source for the submersible pump.

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