KR20080076998A - Floating-type water-quality improvement device - Google Patents

Abstract

[PROBLEMS] A floating-type water-quality improvement device in which flowing water produced using a vertical water flow passage formed between a trumpet-shaped duct and a funnel-shaped floating body is guided to enhance circulation efficiency of a water flow in the up-down direction. As a result, surface water containing oxygen by being in contact with air is circulated in the water to efficiently clean it. [MEANS FOR SOLVING PROBLEMS] The floating-type water-quality improvement device has the floating body (2) floating on a water surface and formed into a funnel-like shape expanded on the upper side. The floating body (2) is provided with a downwardly extending shaft (6) penetrating the water surface. A propeller (7) rotating about its axis is provided at the lower end of the shaft (6) connected to a drive device. The duct (3) whose upper portion is expanded in a trumpet-shape is provided around the floating body (2). The lower end side of the duct (3) is extended to below the propeller (7). The vertical water flow passage (9) is formed between the outer circumferential surface of the floating body (2) and the inner circumferential surface of the duct (3). Flow straightening plates (5) are arranged at the duct (3) in the radial direction of the duct.

Description

Floating water quality improvement device {FLOATING-TYPE WATER-QUALITY IMPROVEMENT DEVICE}

The present invention floats on the surface of the water and rotates the propeller mounted on the shaft tip installed in the water to generate an upward or downward circulating water flow to supply air in the water or sea water, for example, a lake, the bay (灣 內) The present invention relates to a floating water quality improvement device for purifying fresh water or seawater in closed water such as estuaries, estuaries, dams, reservoirs, oil fields and farms.

For example, in closed waters such as lakes, bays, estuaries, dams, reservoirs, oil and fish farms, there is little water flow, so oxygen is not sufficiently supplied to the water below the water surface and the bottom of the water, making the water cloudy. For this reason, the technique of supplying oxygen to water and purifying water is known, for example using aeration apparatus, a stirring apparatus, an oxygen supply pump, etc., and it is used for some uses.

However, in the art of purifying water by supplying air or oxygen in the closed water or seawater by using a device such as an aeration device, a stirring device, or an oxygen supply pump, the device is large or complicated in structure. The energy consumption is large and the cost has been a problem in terms of efficiency.

Therefore, the present applicant has the patent document 1, and proposes the apparatus which was created in order to solve the said subject. This device guides the flowing water generated by the lifting flow channel formed between the trumpet-shaped duct and the funnel-shaped floating body to improve the circulation efficiency of the up and down flow water, and makes contact with the air to radiate water on the surface containing oxygen. While flowing as a stream, the water can be circulated in water to efficiently purify water.

Patent Document 1: Japanese Patent Application Laid-open No. Hei 11-47794

This invention also solves the above subjects, and further improves the said apparatus, and makes the lifting flow a directivity in radial direction, so that a radiation distance may become large.

In order to achieve the above object, the present invention is to install a funnel-shaped floating body floating on the water surface and the upper side is enlarged, extending the shaft downward through the water surface to the floating body, the shaft connected to the drive device Install a propeller rotating around an axis at the bottom of the funnel, install a duct with an upper trumpet shape around the funnel-shaped float, extend the lower end of the duct to the lower side of the propeller, and install the funnel-shaped part. Improving floating water quality by forming an annular elevating flow channel between the outer circumferential side of the fluid and the inner circumferential side of the duct, and causing the elevating flow channel in the elevating flow channel by rotating propellers to generate the elevating circulation flow water in the water inside and outside the duct. In the apparatus, a plurality of rectifying plates are provided in the radial direction of the duct.

Here, it is preferable to provide a solar cell panel in a floating body in order to supply electric power to the drive device of a shaft as a preferable form.

1 is a perspective view of a floating water purification apparatus according to the present invention.

Fig. 2 is a view showing a floating body of the floating water purification apparatus according to the present invention. Fig. 2A is a plan view and Fig. 2B is a sectional view taken along the line A-A in Fig. 2A.

Fig. 3 is a view showing the duct of the floating water purification apparatus according to the present invention. Fig. 3A is a plan view and Fig. 3B is a sectional view taken along line B-B in Fig. 3A.

4 is an enlarged sectional view of an essential part showing a shaft portion of the floating water purification apparatus according to the present invention.

Fig. 5 is a side sectional view showing a state in which a floating water quality improving device is installed in an appeal.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail based on the Example shown below.

In the figure, the floating water quality improving device 1 floats on the surface of the water and the propeller 7 in the water rotates to generate water flow in the vertical direction, thereby generating a circulation flow in the vertical direction around the air, The water on the surface containing oxygen is circulated in contact with water, and oxygen is supplied to the water to purify the water.

The floating water quality improving device 1 includes a funnel-shaped float 2, a shaft 6 mounted on the float 2, a propeller 7 mounted on the lower end of the shaft 6, and a float 2. It consists mainly of the duct 3 provided in the periphery.

The floating body 2 floats on the water surface, for example, is made up of a cavity inside, or is filled with a material having a specific gravity smaller than water therein, and the outer circumferential side thereof is directed from the water to the water surface. It has a funnel-shaped inverted conical curved shape that is enlarged in diameter.

For this reason, the water around the floating water quality improvement apparatus 1 is made to rise or fall along the side peripheral surface of this funnel shape. That is, the water in the water is to be expanded to the surroundings as it rises, or the water on the surface of the descending surroundings is to flow downward in the center portion immediately as it descends.

The floating body 2 is mounted with a shaft 6 in the vertical direction. The shaft 6 penetrates the center hole 2a of the funnel-shaped floating body 2, and is extended in the up-down direction. The shaft 6 is mounted to penetrate the water surface, i.e., the lower end of the shaft 6 extends to the lower end of the tightened and narrowed floating body 2 of the funnel-shaped floating body 2, and the shaft 6 At the bottom of the propeller 7 is mounted.

The propeller 7 has a function of generating water in the vertical direction by rotating in the horizontal direction with the shaft 6 as the axis. The propeller 7 is configured to rotate forward and backward. For example, when the propeller 7 rotates forward, upward flow of water is generated, or when the propeller 7 rotates reversely, downward flow of water is generated.

The upper end of the shaft 6 penetrating the center hole 2a of the floating body 2 in the vertical direction is connected to a driving device (not shown) provided on the upper middle plate 2c in the floating body 2. There is. That is, the upper end of the shaft 6 is interlockedly connected to a brushless motor (not shown) of the driving device through a reducer, and the shaft 6 is rotated by the driving force from the driving device, and the shaft 6 of the shaft 6 The propeller 7 at the lower end is rotated to generate water in the vertical direction.

The drive device is accommodated inside the waterproof box-shaped machine casing 8, for example, and prevents the drive device from failing due to water, seawater or the like. In addition, the solar cell panel 4 is provided as an electric power source for supplying electric power to the upper surface plane portion 2b of the floating body 2 at the upper part of the box-shaped mechanical casing 8 containing the driving device. have. As a result, there is no need to connect the cable supplying power from the land to the floating water quality improvement device 1, and there is no cable to be disturbed. Thus, the water surface of the floating water quality improvement device 1 at a desired position spaced apart from the land. It can be operated by floating it in a phase.

A duct 3 is formed around the outside of the funnel-shaped float 2 and the propeller 7 so as to form a constant gap and the upper portion is expanded in a trumpet shape. The lifting flow passage 9 is formed in an annular shape between the inner circumferential side of the duct 3 whose upper portion is enlarged in a trumpet shape and the outer circumferential side of the funnel-shaped floating body 2 located therein. Here, the some rectifying plate 5 is provided in the radial direction of the duct 3, and it makes a lifting direction the directivity to a radial direction, and the waterproof distance becomes large. When the rectifying plate 5 is not provided, the lifting flow generates water flow in the tangential direction of the circumference of the duct, but the waterproof distance becomes small.

The duct 3 whose upper part is expanded in a trumpet shape is extended to the lower side than the position of the propeller 7 attached to the lower end side of the funnel-shaped floating body 2, and the center hole ( The water on the water surface is fed to and circulated from 3a) to the deep water, or the water in the deep water can be circulated up to the water surface.

In particular, when the lower end of the duct 3 whose upper part is expanded in a trumpet shape is further extended to the lower side than the position of the propeller 7, the suction and discharge places formed in the upper end and the lower end of the duct 3. Can be separated and separated, and interference of suction and discharge can be suppressed.

The duct 3 is connected to the floating body 2 by the plurality of connecting members 10 so that the duct 3 is in a position where the upper end enlarged in its trumpet shape sinks slightly below the water surface. The plurality of connecting members 10 are radially mounted at equal intervals in the elevation flow path 9. As for the some connection member 10, the member of the shape which does not become the resistance of the flowing water which raises and lowers the lifting flow channel 9, for example, the thing of a pin shape is used.

The duct 3 is in a position where the upper end enlarged in its trumpet shape sinks slightly below the surface of the water, so that when the propeller 7 is rotated to generate a downward flow of water, the duct 3 contacts the air near the surface to contain oxygen. Only water can be efficiently sucked into the lifting flow channel 9 inside the duct 3 and fed into deep water.

On the outer circumferential side of the duct 3, a mounting ring 3b for connecting a mooring rope 11 is mounted. One end of the mooring rope 11 is connected to the mounting ring 3b, and the other end thereof is connected to the anchor 12 or the like that has settled on the cutlery.

Next, the effect based on the structure of embodiment of the said invention is demonstrated below. For example, water such as lakes, bays, estuary areas, dams, reservoirs, oil and fish farms are transported to contaminated closed waters, and the floating water quality improving device 1 is floated on the water surface.

Then, one end of the mooring rope 11 is connected to the mounting hole 3b on the outer circumferential side of the duct 3 of the floating water quality improving device 1, and the other end of the mooring rope 11 is connected to the anchor 12. And anchor the anchor 12 connected to the other end of the mooring rope 11 to the spoon. Thereafter, the floating water quality improving device 1 is driven.

When the solar cell 4 is attached to the floating water quality improvement apparatus 1, the electric power obtained by the solar cell 4 is supplied to a drive apparatus. In this case, there is no need to connect the cable supplying power from the land to this floating water quality improvement device 1, and since there is no obstruction, the floating water quality improvement device can be freely placed on the water surface at any position spaced from the land. It can be operated by floating. It can also prevent cables from catching on parts of the device and disrupting work. Of course, when the solar cell 4 is not attached or at night, it can also supply electric power by connecting to a commercial power supply of a land.

In the driving device supplied with electric power, the driving device motor is driven, and the driving force of the motor axially rotates the shaft 6 in one direction through the reduction gear. When the shaft 6 rotates axially, the propeller 7 mounted at the lower end of the shaft 6 rotates in one direction.

When the rotation of the propeller 7 in one direction rotates to inject water on the water into the water, i.e., to generate the flowing down water, the water on the water surface containing oxygen in contact with the air is near the water surface. It flows in the annular lifting flow path 9 formed between the inner peripheral side of the duct 3 and the outer peripheral side of the funnel-shaped floating body 2 beyond the upper end of the duct 3 in which the upper end is located.

The water on the water surface including the oxygen flowing into the lifting flow channel 9 descends the inside of the lifting flow channel 9 by the falling flow water generated by the rotational force of the propeller 7, and extends in the lower side of the duct 3. It is sent in deep water from the bottom. Since the water on the surface of the water sent to the deep water contains a large amount of oxygen, it is possible to supply a large amount of oxygen in deep water which tends to be deficient in oxygen, and it is possible to purify the deep water contamination by the action of this oxygen. Become.

In this way, when the propeller 7 continues to rotate, the circulation of the descent flow which injects water on the water surface containing oxygen into water occurs, and when water on the water surface containing oxygen continues to be supplied in deep water, the duct ( 3) The water around the outside gradually rises, and the flowing down water occurs inside the duct 3, and the rising flowing water occurs outside the duct 3.

In this way, the elevating circulation flowing water occurs in and around the duct 3, and the circulation flowing water for supplying the water on the water surface containing oxygen in the deep water is generated around the floating water quality improving device 1, and in the closed water Purification of water is achieved efficiently.

On the contrary, when the direction of rotation of the propeller 7 in one direction rotates in the opposite direction to the above, the oxygen is almost contained when the water is rotated to generate the flowing water on the surface, that is, the rising flow. The contaminated water not in the water is annularly formed between the inner circumferential side of the duct 3 and the outer circumferential side of the funnel-shaped float 2 from the center hole 3a at the lower end of the duct 3 in the water. It flows into the lower part of the lifting channel 9.

The contaminated water in the water that contains little oxygen flowing into the lower part of the elevating flow path 9 rises in the elevating flow path 9 by the ascending flow generated by the rotational force of the propeller 7, It is sent out on the surface of water from the upper end of the duct 3 enlarged to the trumpet shape of. The contaminated water sent out onto this water surface is in contact with the air and absorbs oxygen. In this way, the contaminated water, which contains little oxygen, is discharged onto the water surface and purified by absorbing oxygen.

In this way, if the propeller 7 continues to rotate, a circulation of ascending water that delivers contaminated water containing little oxygen to the surface occurs, and contaminated water containing little oxygen is generated. If water of continually is sent out on the surface of the water, the water around the outside of the duct 3 gradually descends, and the rising flow occurs inside the duct 3, and the flowing down flow occurs outside the duct 3.

In this way, the elevating circulation flow water occurs in and around the duct 3, and the circulation flow water for supplying the water on the water surface containing oxygen into deep water is generated around the floating water quality improving device 1, Purification of water is achieved efficiently.

In this way, the elevating circulation water flows in and out of the duct 3, and the circulation water flowing out of the contaminated water, which contains little oxygen, onto the water surface is generated around the floating water quality improving device 1. Purification of water in the closed water is efficiently achieved.

In addition, this invention is not limited to embodiment of the said invention, Of course, various changes can be made in the range which does not deviate from the summary of this invention.

As described above, according to the floating water quality improving apparatus according to the present invention, water containing oxygen on the water surface can be fed into the water through a lifting channel, or contaminated water containing almost no oxygen through the lifting channel. Water can be sent out on the surface of the water to absorb oxygen in the air, whereby purification of the water in the closed water can be efficiently achieved.

By convection agitation of the apparatus of the present invention, the water in the low oxygen state that has risen from the bottom of the water system circulates by taking oxygen from the air near the water surface. As a result, oxygen-loving microorganisms are activated to decompose various sludge-causing substances. In addition, the growth of the microorganisms becomes food of protozoa, and the whole ecosystem of appeal is activated and diversified, such as food of small fish or aquatic insects. That is, activation of microorganisms by oxygen and a favorable circulation of plant chains can be achieved.

Ultraviolet rays contained in sunlight inhibit the growth of microorganisms that rot water. When convection stirring by the apparatus of the present invention, the water rises effectively exposed to sunlight, and the sterilization effect of ultraviolet light prevents the decay of the water, which is effective in suppressing odors, etc. We can plan.

When the amount of dissolved oxygen decreases, phosphorus fixed in water elutes as phosphate ions and becomes a nutrient source of blue powder (chlorophyll a) and green algae to promote proliferation. However, according to the apparatus of the present invention, since oxygen is supplied to the reservoir, phosphorus elution can be suppressed, and generation and proliferation of blue powder, green algae, and the like can be suppressed. That is, phosphorus elution can be suppressed by supplying oxygen to a pond.

Claims (2)

Install a funnel-shaped floating body floating on the water surface and having an enlarged upper side, and extending the shaft downward through the water surface to the floating body, and a propeller rotating around an axis at the lower end of the shaft connected to the driving device. Install a duct with an upper portion trumpet-shaped around the funnel-shaped float, extend the lower end of the duct to the lower side of the propeller, between the outer circumferential side of the funnel-shaped float and the inner circumferential side of the duct. A floating water quality improvement apparatus which forms an annular elevating flow channel and generates elevating flow in the elevating flow channel by rotating propellers, and generates elevating circulation flow water in and out of the duct. Floating water quality improvement device characterized in that the rectifying plate is installed. The floating water quality improvement apparatus according to claim 1, wherein a solar cell that supplies electric power to a drive device of the shaft is provided in the floating body.

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