KR20090079119A - Floating water treatment facility - Google Patents

Abstract

A floating water purification system is environmentally friendly by using a windmill which is easily moved and rotated even by low wind velocity and is capable of efficiently circulating water in top and bottom layers while moving along the surface of water within a predetermined range of closed waters including a dam, a lake and a marsh. A floating water purification system(10) comprises: a housing(50) floating on the surface of the water; a wind power drive unit(15) installed on the housing; and a circulation unit forming an upflow or downflow water stream by propellers rotated by the wind power drive unit to circulate water. The wind power drive unit includes a plurality of blades which are supported to a rotary shaft pivotally installed on the housing in the vertical direction, of which one sides generate lift with respect to wind, and of which other sides generate drag with respect to the wind. The blades are respectively fixed to a plurality of supports(67) radially forme don the outer peripheral surface of the rotary shaft. The circulation unit includes a funnel shaped shroud(60), a drive shaft, and an electric motor. The floating water purification system further comprises a fixing unit including a rope(70) and a fixing body.

Description

Floating water treatment facility

The present invention relates to a floating water purification device, and more particularly, to a water purification device for purifying water by rotating a propeller installed in water by wind power to circulate water in the upper and lower layers.

Generally, surface sewage, living sewage, factories, and agricultural wastewater are continuously introduced into closed waters, such as lakes, bays, estuary areas, dams, reservoirs, ponds, and farms, where water is not active and stagnant. Will increase the concentration of pollutants.

Nutrients, including nitrogen compounds and phosphates, among pollutants, cause eutrophication in fresh water because they promote the growth and growth of microorganisms that cause organic degradation.

As it is well known, eutrophication refers to a phenomenon in which abnormal growth of algae occurs because nutrients such as nitrogen and phosphorus are increased in fresh water due to decomposition of organic substances by microorganisms. This eutrophication causes severe damage to the appealing ecosystem, such as deterioration of fresh water turbidity, odor caused by decay, and severe death of fish in the water.

In particular, oxygen is not supplied to the lower layer of the closed water body, which is stagnant with little water flow, and contaminates water from the bottom.

Therefore, it is important to balance the amount of nutrients such as nitrogen and phosphorus in the aquatic ecosystem so that it does not exceed its self-purifying ability. It is very important that the purification be carried out smoothly.

However, even though many dams, reservoirs and lakes in Korea have increased in the upstream sewage and wastewater purification facilities, water deterioration is gradually intensifying due to the inflow of large amounts of pollutants and the formation of dense layers with long-term freshwater. to be.

A water purification apparatus for dams and reservoirs, which is one of methods for improving the water quality of a conventional closed water, is disclosed in Korean Patent Registration No. 0387203.

However, the above-described water purification apparatus has a problem that not only is bulky and complicated, but also excessive energy is consumed.

In addition, the injected air does not reach the lower layer and the air immediately rises to the upper layer to escape to the atmosphere within a short time, so that the residence time is short and the dissolution rate of oxygen is low. Therefore, the contact efficiency between the air injected into the water and the purified water is inevitably lowered. In particular, the lower layer water is in contact with water in the state of little oxygen dissolving, and thus contaminants cannot be sufficiently decomposed as expected. There was a problem of poor water purification efficiency.

The present invention was made to improve the above problems, and an object thereof is to provide an environment-friendly floating water purification device using a windmill that is easy to start and rotate even at low wind speeds.

Another object of the present invention is to provide a floating water purification apparatus capable of efficiently circulating the upper layer and the lower layer by floating while moving the water surface within a certain range of a closed water body such as a dam or a lake.

Floating water purification device of the present invention for achieving the above technical problem is a housing floating on the water surface; Wind driving means installed in the housing; Circulating means for circulating water by forming an upward or downward flow of water by the propeller rotated by the wind driving means, wherein the wind driving means is supported by a rotating shaft rotatably installed in the housing in a vertically upward direction. Lifting against the wind and the other surface is characterized in that it comprises a plurality of blades for generating a drag against the wind.

The blades are fixed to a plurality of radially formed supports on the outer circumferential surface of the rotary shaft and formed in a streamlined airfoil shape so that the outwardly facing outwardly with respect to the rotating shaft is lifted and inwardly inwardly facing the rotating shaft. It is characterized in that the cut-out section formed to be dragged against the wind.

The circulation means is supported by the housing and extends to a certain depth in the water and the upper end is located below the water surface, a funnel-shaped shroud formed with a flow path for moving upward or downward flow formed by the propeller therein, and vertical in the housing A drive shaft extending downward and installed in the flow path of the shroud and coupled with the propeller, and an electric motor installed inside the housing to forward / reversely rotate the drive shaft.

The wind power driving means is installed inside the housing and receives the rotational force from the rotating shaft to generate power, and further comprising a capacitor for supplying power to the electric motor by charging the electricity generated in the power generation unit. It is done.

It is characterized in that it further comprises a solar power module is installed on the upper surface of the housing to charge electricity to the capacitor.

It further comprises a lighting means installed in the housing, the lighting means is installed at the edge of the housing lamp unit for generating light by receiving electricity from the condenser, an optical sensor for sensing the ambient illumination, and the optical sensor It characterized in that it comprises a control unit for controlling the electric circuit in response to the signal.

Fixing means for limiting the movement of the housing to a predetermined range on the water surface, the fixing means is characterized in that it comprises a rope of a certain length connected to the housing, and a fixing body for fixing one end of the rope do.

The circulation means is supported by the housing and extends to a certain depth in the water and the upper end is located below the water surface, the funnel-shaped shroud formed with a flow path for moving upward or downward flow formed by the propeller therein, and vertical in the housing It extends downward and is installed in the flow path of the shroud, characterized in that it has a drive shaft to rotate in conjunction with the rotary shaft and the propeller is coupled.

As described above, according to the floating water purification device of the present invention, the power generation efficiency is high by using a windmill that is easy to start and rotate even at low wind speed, and thus the operation efficiency of the water purification device is high and environmentally friendly.

In addition, since the surface of the fixed body is floating while moving in a certain range of a closed water body such as a dam or a lake, the upper and lower layers can be circulated over a large body of water, thereby effectively purifying water quality.

In addition, it is equipped with a lighting means to easily identify the location at night to provide a water purification device that can not only prevent safety accidents in advance, but also create a beautiful landscape.

Hereinafter, a floating water purification apparatus according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1 is a perspective view of a floating water purification device according to an embodiment of the present invention, Figure 2 is a partial excerpt perspective view showing a part of the floating water purification device of Figure 1, Figure 3 is a peripheral portion of the blade applied to Figure 1 Figure 4 is a cross-sectional view showing the pressure distribution, Figure 4 is a view showing the rotational operation of the blade applied to Figure 1, Figure 5 is a cross-sectional view showing a state in which the water purification device of Figure 1 circulates water, Figure 6 Partial extract showing a water purification device according to another embodiment is a perspective view, Figure 7 is a side view showing a water purification device according to another embodiment of the present invention, Figure 8 is according to another embodiment of the present invention It is a perspective view which shows the state which a water purification apparatus moves in water surface.

1 to 5, the water purification apparatus 10 of the present invention is generally installed in a closed water body in which water is not active and stagnant, such as a lake, a bay, an estuary area, a dam, a reservoir, a pond, and a farm. It is used.

The water purification apparatus 10 includes a housing 50 that is largely floating on the surface, wind driving means installed in the housing 50, circulation means for circulating water by the wind driving means, and movement of the housing 50. Fixing means for limiting to within a certain range on the water surface.

The upper portion of the housing 50 has a cylindrical shape, and the lower portion has a funnel shape. Inside the housing 50, a floating body may be embedded or an airtight space having an air layer may be formed so that the housing 50 floats on the water surface. The housing 50 supports the wind driving means and the circulation means while floating on the water surface. The housing 50 uses a corrosion resistant material.

The circulation means is a funnel-shaped shroud 60, which is supported by the housing 50 and extends to a certain depth in water, a drive shaft 63 extending from the housing 50 and installed inside the sarawood 60; It consists of a propeller 65 coupled to the lower end of the drive shaft 63, and an electric motor (not shown) for rotating the drive shaft (63).

The shroud 60 has a length that extends from the bottom of the housing 50 to reach the bottom layer through the middle layer of the body of water. The upper end of the shroud 60 is installed to be located below the surface of the housing 50 to some extent. The shroud 60 spaced apart from the housing 50 is fixed to be positioned below the housing 50 so that the upper part of the housing 50 and the shroud 60 are connected to a plurality of supports 67.

Inside the shroud 60 in which the drive shaft 63 is located, a flow path 69 through which an upward or downward flow formed by the propeller 65 moves is formed. The inner surface of the shroud 60 is preferably processed into a smooth shape to reduce the friction of the flowing water.

In addition, although not shown, the shroud 60 may be configured such that the length from the top to the bottom may be changed so that the shroud 60 may be applied to a water body having various depths. In order to have a structure having a variable length, a plurality of shrouds may be stacked and formed in a vertical direction. In this case, each shroud is stacked to allow mutual coupling and separation.

The drive shaft 63 extending along the flow path 69 of the shroud 60 and vertically formed to the lower part of the shroud 60 is connected to the electric motor installed in the housing 50 to rotate.

Unlike this, the drive shaft 63 may be rotated in direct connection with the rotary shaft 30 of the wind power generator, which will be described later, rather than being rotated by the electric motor.

A propeller 65 is installed at the lower end of the drive shaft 63 to rotate the electric motor to generate upward water flow.

When the propeller 65 rotates in a predetermined direction by the circulation means having the above structure, upward flow is generated as shown in FIG. 5, and the lower end of the shroud 65 is positioned by the upward flow. Water of the lower layer is moved through the flow path 69 of the shroud is circulated over the top of the shroud 65 to the upper layer around the housing 50. In this case, the water in the lower layer is mixed with the upper layer, thereby contacting the atmosphere, and oxygen is dissolved in the water, and the organic material contained in the water in the lower layer is oxidized to improve the water quality.

In addition, when the propeller 65 reversely rotates, downflow occurs in which the water in the surface layer or the upper layer of the closed water drops downward, and the generated downflow reaches the lower layer of the body of water through the flow path of the shroud. And as the upper layer water moves to the lower layer, the space is mixed while the middle layer water and the lower layer water are dissolved and filled.

Through this circulation process, water in the upper layer rich in oxygen is circulated to the lower layer having high organic concentration and lacking dissolved oxygen, thereby supplying oxygen in the upper layer to the lower layer, while aerobic microorganisms decompose organic materials to improve water quality.

Although not shown, two or more propellers 65 coupled to the drive shaft 63 may be provided. In this case, a plurality of propellers are installed at a predetermined distance from the lower end of the drive shaft. Preferably, it is formed so that the rotation radius of the propeller becomes smaller as it proceeds upward.

And the water purification apparatus 10 of the present invention supplies the power of the electric motor for rotating the propeller 65 using the wind power generation drive means (15).

In the wind power generating means 15 according to an embodiment of the present invention, the rotary shaft 30 and the support shafts 40 formed in a plurality of radially on the outer circumferential surface of the rotary shaft 30 are fixed to the supports 40, respectively. The blade 20, a power generation unit (not shown) that receives the rotational force from the rotating shaft to generate power, and a capacitor (not shown) for supplying power to the electric motor by charging the electricity generated in the power generation unit.

The rotating shaft 30 is vertically formed upwardly with respect to the housing 50, and a lower portion of the rotating shaft 30 is formed inside the housing 50 and connected to a power generation unit that converts kinetic energy into electrical energy.

On the outer circumferential surfaces of the upper and lower portions of the rotary shaft 30, a plurality of supports 40 are formed extending in a direction orthogonal to the rotary shaft.

The blades 20 are respectively provided at the ends of the four supports 40 along the circumferential direction of the same radius in the plane orthogonal to the rotation axis 30. The blade 20 is formed by pressing a thin plate-shaped material made of a metal material such as aluminum alloy, or extrusion molding using a resin.

The blade 20 is formed in a streamlined air foil type used in an airplane represented by a four-magnetic field air foil type, RAF air foil type, gettingen air foil type, etc., inwardly facing the rotation axis 30 (B) ), An ablation portion 25 is formed. The cutout portion 25 is formed by cutting over the trailing edge b at a position between 35% and 45% from the leading edge a. As a result, the blade 20 is formed into an air foil type that has a high lift coefficient with a low Reynolds number.

Around the blade 20 having the above structure, a pressure distribution is formed against the wind from the front (arrow C direction) as shown in FIG. That is, the pressure distribution of the air foil type used for the blade 20 has a pressure higher than the outside air pressure is distributed on the leading edge (a) side of the inward surface (B) of the blade (20), and behind the leading edge (a). The inwardly facing surface B is placed at a pressure substantially equal to the outside air pressure. On the outwardly facing surface A, the flow velocity is accelerated by the air foil shape, so the pressure is reduced to form a negative pressure. Therefore, even if the cut-out part 25 is provided in the inwardly facing surface B which is a fixed distance back from the leading edge, the aerodynamic characteristic of an air foil is small.

As shown in FIG. 4, when the blade 20 receives wind from the front side (the arrow C direction in the drawing), the lift force is generated in the L arrow direction in the drawing. Therefore, the windmill rotates clockwise by the rotational direction component force L ₁ of the lifting force generated in the blade 20.

In addition, in the low wind speed region as in the start-up, when the blade 20 rotates with the wind from the rear side (in the direction of arrow D in the drawing), the blade 20 is cut by the cutout portion 25 on the lower surface of the air foil. 20) large air resistance occurs. As a result, a rotation moment is generated in the blade 20 by the Savonius windmill effect, that is, the air resistance, thereby generating the starting torque of the windmill.

As a result, since the cutout part 25 is formed in the inward surface of the blade 20, a rotation moment is generated by air resistance in the low wind speed area | region of 1 or less of circumference ratios with respect to the wind from the D arrow direction of FIG. .

Then, the above moment is applied to the rotational direction component force L1 of the lift force generated in the blade 20 which receives the wind from the arrow C direction of FIG. 4, and rotates. It is rotated by the generated lift. That is, since the blade 20 is formed in an air foil type having a high lift coefficient with a low Reynolds number, the blade 20 can be rotated even at a low wind speed of 1 m / sec or less, so that the blade 20 can be efficiently developed. Moreover, since the blade 20 uses lightweight members, such as an aluminum alloy, the weight of the whole blade 20 becomes small and the load by the centrifugal force generate | occur | produced in the blade 20 reduces.

In the above embodiment, the ablation portion 25 is formed on the inward surface of the blade 20. However, since a blade type having a high lift coefficient with a low Reynolds number is used, the blade 20 has air resistance and lift due to wind. Are generated to rotate the blades 20 by their forces. Therefore, the blade 20 can generate the rotation moment necessary for power generation in any wind direction and wind speed. As a result, the blade 20 can be rotated over a wide range of wind speeds.

In addition, since four blades 20 are disposed around the rotational shaft 30, the blades 20 can be efficiently rotated against the wind from all directions, thereby rotating the blades for all the wind directions regardless of the wind direction. As it is possible to generate electricity, it can be installed in the city center where the wind direction is volatile.

In addition, although the four blades 20 are arranged in the above embodiment, the present invention is not limited thereto, and three or less blades or five or more blades may be used, and the same effects and effects as those of the above embodiments can be achieved. .

Although not shown, the blade 20 may be attached to the front end cover for reducing air resistance at both ends, or a winglet for reducing the induction effect of the blade 20 as necessary.

The power generation unit (not shown) is formed in the housing 50 and consists of a rotor and a power generation coil coupled to the lower end of the rotation shaft 30 so that when the rotor is rotated, induction electromotive force is generated by electromagnetic induction from the power generation coil. It is.

In addition, a speed increase unit (not shown) may be further installed inside the housing 50 to increase the rotational force of the rotation shaft 30. The speed increasing unit uses a planetary gear device to increase the rotational force of the blade 20 rotating by the wind. The planetary gear device is composed of a combination of the sun gear and the sun gear while turning itself around the sun gear to increase the rotational force.

In addition, it is preferable to use an Electric Double Layer Capacitor (EDLC) as the capacitor to be applied to the present invention.

The electric double layer capacitor uses a very fast and reversible kinetic mechanism of ions as the basic operating principle of energy storage, so that the charge and discharge rate is high and instantaneously supply high current, and the charge and discharge efficiency over a wide operating temperature range. It is much better and safer than this conventional secondary battery.

An electric double layer capacitor forms an electrostatic layer on the interface between an activated carbon electrode and an organic electrolyte and accumulates electric energy like a battery using an electric double layer state as a dielectric. An electric double layer at an interface between a solid electrode and a solid or liquid electrolyte To the adsorption and desorption of charges. The electric double layer capacitor uses polarizable electrodes, which are conductors separated by a separator, and a pair of charge layers (electric double layers) having different signs at the interface of the electrolyte solution impregnated therewith. The electric double layer capacitor having the above structure has excellent discharge characteristics indicating instantaneous high current and high output as compared with the battery, and has a life cycle life since it has several hundred thousand cycle characteristics.

The fixing means includes a rope 70 having a predetermined length connected to both sides of the shroud 60 installed below the housing 50, and a fixing body for fixing one end of the rope 70. The fixture uses a weight 73 or an anchor or the like connected to the rope 70 and fixed to the bottom of the body of water.

Although not shown in the figure, as a fixture, a strut installed on the ground of the waterside may be used. In this case, one end of the rope 70 is fixed to the support and the other end is connected to the shroud 60 located on the water surface.

And as a fixing means, as shown in Figure 7 is installed on the bottom of the body of water can be used as a support body (75) extending to the water surface. In this case the rope 70 is connected to the top of the strut 75 exposed out of the water surface. Therefore, the housing 50 may move by water flow or wind around the support 75 with the length of the rope as the radius of rotation, and thus the water purification efficiency may be higher than when the housing 50 is fixed at a predetermined position.

And as shown in Figure 8 another embodiment of the fixing means is a floating body 77 is fixed at a certain position on the water surface between the two housings, weights 78 are respectively fixed to the bottom of the body of water, floating body A first rope 76 connecting the 77 and the weight 78, and a horizontal bar 79 is rotatably installed on the upper portion of the floating body (77). Accordingly, the second rope 70 is connected to both sides of the horizontal bar 79, and each of the second ropes 70 is connected to the shroud 60 installed under the housing 50 located on the left and right sides. Therefore, the two housings 50 rotate the water around the floating body 77.

And it is to supply power to the electric motor may have a configuration that can be combined with the solar power generation along with the power generated by the wind.

Referring to FIG. 6, the photovoltaic module 80 for photovoltaic power generation is installed on the upper surface of the housing 50 so that the plurality of solar cells 81 are arranged in a lattice form to charge electricity in the capacitor. . In addition, a voltage regulator (not shown) may be installed between the solar cell 81 and the capacitor to control the current so that the voltage generated in the solar cell 81 is kept constant and transferred to the capacitor.

As described above, the solar power generation module 80 further provides power generation by solar power even when there is no wind, and power generation by wind power at night or when the weather is cloudy. It can increase. In addition, wind power or photovoltaic power does not damage or pollute the environment to provide electricity in an eco-friendly way.

The water purification apparatus 10 of the present invention may further include lighting means.

As the lighting means, a lamp unit 91 installed at an edge of the housing 50 to receive electricity from a condenser and generating light, an optical sensor 93 for detecting ambient illumination, and an optical sensor 93 It is provided with a control unit (not shown) that receives the signal and controls the electric circuit.

The lamp unit 91 generates electricity by receiving electricity from a capacitor and is installed along the edge of the housing 50. The lamp unit 91 uses an aluminum frame 95 and a lamp 97 provided on the frame 95. The lamp 97 may use an LED lamp having a small volume and low power consumption, which may create a beautiful landscape with colors of various wavelengths.

And the light sensor 93 for detecting the ambient illumination to be able to identify the day and night is installed on the upper portion of the housing (50). And a control unit for controlling the electric circuit in response to the signal from the optical sensor 93 is installed inside the housing (50). Therefore, at night, the control unit causes power to be supplied from the condenser to the lamp 97 by the signal of the optical sensor 93.

The water purification device having such lighting means can easily identify the location at night to prevent the ship from colliding, and can create a beautiful landscape at night to contribute to the ecological natural park role of the appeal.

Meanwhile, components not described above in the water purification apparatus of the embodiment illustrated in FIGS. 6 to 8 are the same as the embodiments illustrated in FIGS. 1 to 5, and thus, detailed descriptions thereof will be omitted.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments thereof are possible.

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

1 is a perspective view of a floating water purification apparatus according to an embodiment of the present invention,

2 is a partial perspective view showing a part of the floating water purification device of Figure 1,

3 is a cross-sectional view showing the pressure distribution around the blade applied in FIG.

4 is a view showing a rotation operation of the blade applied to FIG.

5 is a cross-sectional view showing a state in which the water purification apparatus of FIG. 1 circulates water;

Figure 6 is a partial perspective view showing a floating water purification device according to another embodiment of the present invention,

7 is a side view showing a water purification device according to another embodiment of the present invention,

8 is a perspective view showing a state in which the water purification apparatus according to another embodiment of the present invention moves on the surface of the water.

<Description of the symbols for the main parts of the drawings>

20: blade 30: axis of rotation

40: support 50: housing

60: shroud 63: drive shaft

65: propeller 70: rope

80: photovoltaic module 91: lamp unit

Claims (8)

A housing floating on the water surface; Wind driving means installed in the housing; And circulation means for circulating water by forming an upward or downward flow of water by the propeller rotated by the wind driving means. Floating water quality is characterized in that the wind driving means is supported on a rotating shaft rotatably installed vertically in the housing, one side of which generates a lift against the wind and the other side generates a drag against the wind. Purifier. According to claim 1, wherein the blade is fixed to each of the plurality of radially formed on the outer circumferential surface of the rotary shaft and formed in a streamlined air-foil so that the outwardly facing outward with respect to the rotary shaft is lifted and inwardly to the rotary shaft Floating water purification device, characterized in that formed on the one side of the inward surface to be cut out to generate a drag against the wind. The funnel-shaped shroud according to claim 1, wherein the circulation means is supported by the housing and extends to a depth in water, the upper end of which is located below the water surface, and has a flow path through which an upward or downward flow formed by the propeller moves. Wow, A drive shaft extending vertically downward from the housing and installed in the passage of the shroud and coupled with the propeller; Floating water purification device, characterized in that provided in the housing having an electric motor for forward / reverse rotation of the drive shaft. 4. The condenser of claim 3, wherein the wind power driving means is installed inside the housing to generate power by receiving rotational force from the rotating shaft, and to supply power to the electric motor by charging electricity generated by the power generating unit. Floating water purification device characterized in that it further comprises. The water purification apparatus of claim 4, further comprising a photovoltaic module installed on an upper surface of the housing to charge electricity to the capacitor. According to claim 4, It further comprises a lighting means installed in the housing, The lighting means has a lamp unit which is installed at the edge of the housing to receive electricity from the condenser and generates light, an optical sensor for detecting ambient illumination, and a control unit for controlling an electric circuit by receiving a signal from the optical sensor. Floating water purification device, characterized in that. The method of claim 1, further comprising a fixing means for limiting the movement of the housing to a certain range on the water surface, The fixing means is a floating water purification device, characterized in that it comprises a rope of a predetermined length connected to the housing, and a fixing body for fixing one end of the rope. The funnel-shaped shroud according to claim 1, wherein the circulation means is supported by the housing and extends to a depth in water, the upper end of which is located below the water surface, and has a flow path through which an upward or downward flow formed by the propeller moves. Wow, Floating water purification device which extends vertically downward from the housing and is installed in the flow path of the shroud and rotates in conjunction with the rotary shaft, the drive shaft coupled to the propeller.

Images