KR101906145B1 - Stream generation apparatus - Google Patents

Abstract

The present invention relates to a water current generating apparatus for generating a water current in a closed water zone such as a lake, a pond, a reservoir, and a hazard. The water current generating apparatus according to the present invention comprises: a driving motor defined inside a waterproof case and submerged in a closed water zone; a first water current forming means for receiving a driving force of the driving motor and rotating to form a water current on the water surface; a second water current forming means for rotating along the first water current forming means and injecting air into the water while forming a water current on the water surface; and a top panel connecting the driving motor and the first water current forming means.

Description

STREAM GENERATION APPARATUS

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water-current generating apparatus that generates a water flow in an enclosed water body such as a lake, a pond, a reservoir,

In general, the concentration of contaminants in the water increases because water is not active and stagnant in lakes, ponds, reservoirs, and hazards.

In particular, nutrients including nitrogen compounds and phosphates in pollutants cause eutrophication in fresh water because they promote the growth and proliferation of microorganisms causing decomposition of organic matter.

Such eutrophication damages the turbid ecosystem of the lake, such as lowering the turbidity of fresh water, generating bad smell by decay, and severely damaging fish and shellfish in the water.

On the other hand, various methods such as installation of an aeration or aquatic aeration device for oxygen supply, spraying of medicines for preventing green algae, and physical removal of sediment organic matter are used as methods for preventing the self-purification ability from being lost or degrading the quality of fresh water However, the effect is insufficient.

Another solution is to create a flow of water to reach the bottom where the sediments are stacked and to provide oxygen to the sediment to prevent self-accumulation of deposits, thereby achieving self-purification capability.

However, since the conventional water-current generating apparatus is small in size, a large number of water-current generating devices must be installed in order to impart a desired self-limiting capability, thereby deteriorating the appearance of the watercourse.

Further, in the conventional water-current generating apparatus, since the driving unit is exposed to the water surface, there is a problem that the operating noise of the driving unit is transmitted to the surroundings, and there is another problem that such a problem can not be used for a hazard such as a golf course requiring concentration.

In addition, the conventional water flow generating device has another problem that the structure of the water flow generating device is complicated and maintenance is difficult because the water flow generating device must have a separate buoyancy means for floating the water flow generating device to the water surface.

In addition, the conventional water-current generating device has a problem that the durability is remarkably weak because it is made of a light material, for example, ordinary FRP (Fiber Reinforced Plastics) in order to float the water-current generating device with a small buoyancy.

A related prior art is Korean Registered Patent No. 10-1540925 (registered on June 27, 2015).

A first object of the present invention is to provide a water flow generating device capable of minimizing exposure to the outside of the water surface and driving noises and maintaining a stable posture on the water surface.

A second object of the present invention is to provide a water flow generating device that is excellent in durability and corrosion resistance and can increase efficiency by enlarging equipment.

The technical objects to be achieved by the present invention are not limited to the above-mentioned technical problems.

According to an aspect of the present invention, there is provided a water flow generating device disposed in a closed water body to generate water flow, the water flow generating device including: a drive motor that is limited inside a waterproof case and is disposed in a closed water body; A first water flow forming means for receiving the driving force of the driving motor and rotating to form a water flow on the water surface; Second water flow forming means for rotating air along the first water flow forming means and injecting air into the water while forming a water flow on the water surface; And a top panel connecting the drive motor and the first water flow forming means.

Specifically, the waterproof case has an upper portion opened and a lower portion closed, the interior of which is hollow; And a cover for covering an opened upper portion of the case body. The driving motor is inserted into the case body while being fixed to a bracket provided at a lower portion of the cover, and the driving motor inserted into the case body is hermetically The cover is limited to the inside of the waterproof case by a cover covering the opened upper portion of the case body, a speed reducer is interposed between the driving motor and the bracket, and a cable gland for guiding a cable for supplying power to the driving motor can be mounted on the cover .

More specifically, a plurality of cradles are fixedly mounted on a closed lower outer side surface of the waterproof case, the cradle including: a rod portion fixedly mounted on a lower portion of the waterproof case and horizontally extending to the outside of the waterproof case; And an annular portion integrally formed at the extended end of the rod portion, wherein one end of the rope is connected to the loop portion and the other end of the rope can be connected to the concrete foundation installed on the ground.

Specifically, the top panel is spaced apart from the top of the cover, and a rotation axis extending through the cover and connected to the output shaft of the speed reducer via a coupling may be mounted on the rotation center of the top panel.

Specifically, the first water-flow forming means includes a plurality of buoyant bodies radially fixedly mounted on the top panel at regular intervals on the top panel, the buoyant bodies being closed at both ends, Or the like.

More specifically, the first water-flow forming means may have a buoyant force that causes the buoyant bodies to submerge while the waterproof case with the drive motor is not sunk.

More specifically, the buoyant bodies are mounted on the top panel so that the outward length of the buoyant bodies can be adjusted to the outside, and one end of the buoyant bodies connected to the top panel is formed with guide projections protruding along the longitudinal direction of the buoyant body, The slider is slidably fitted with the guide protrusion and the guide protrusion inserted into the slider is fixedly mounted on the top panel and the slider by the fixing bolts fastened to the guide protrusion .

Specifically, the second water flow forming means includes paddles fixedly mounted on the other end side of the buoyant body, and the paddle is pushed from the upper side of the buoyant body exposed above the water surface so as to hold the water, To the outside of the lower portion of the buoyant body submersed in the water.

More specifically, the paddle is formed with an inflow channel so that air can be infused into the water. The inflow channel extends from the top of the paddle through the inside of the paddle to the bottom of the paddle, And may be formed so as to become gradually narrower toward the lower end side.

Specifically, the upper end of the injection path is formed to be opened toward the rotational direction side of the buoyant body, and a backflow preventing plate for preventing water from flowing back along the injection path may be mounted in the injection path.

As described above, the water-current generating device according to the present invention minimizes the exposure of the apparatus, because only the top panel, a part of the buoyant body, and a part of the paddles are exposed on the water surface, There is an advantage to be able to.

Further, since the water flow generating device according to the present invention is arranged in the water of the closed water body in a state where the speed reducer connected to the drive motor and the drive motor is limited inside the waterproof case, there is an advantage that the operation noise can be minimized have.

Further, the water-current generating apparatus according to the present invention has an advantage of being able to prevent durability increase and corrosion because a waterproof case, a cradle, a top panel, a buoyancy pad and paddles are made of stainless steel and a stainless steel alloy .

In addition, since the water flow generating device according to the present invention has the pouring passage for pouring air into the paddle, it is possible not only to easily inject and dissolve air in water, but also to dissolve dissolved oxygen Oxygen) can be remarkably increased.

1 is a view showing a state in which a water flow generating device according to the present invention is disposed in an enclosed water zone, and is a front view of a water flow generating device according to the present invention,
2 is a plan view showing a water flow generating device according to the present invention,
3 is a view showing a connection relationship between the top panel and the buoyant body shown in Fig. 1, and Fig.
4 is a cross-sectional view along line AA shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference symbols whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 to 4 are views showing a water flow generating device according to the present invention. The water flow generating device 100 according to the present invention includes a drive motor 110, a drive motor 110, A first water flow forming means 150 for forming a water flow on the water surface of the first water flow forming means 150 and a second water flow forming means 150 for forming a water flow in the water while forming a water flow on the water surface, And a second water flow forming means 170 for injecting water.

The water flow generating device 100 according to the present invention further includes a top panel 140 connecting the driving motor 110 and the first water flow forming means 150.

First, the drive motor 110 is submerged in the water of a closed water body such as a lake, a pond, a reservoir, and a hazard.

The driving motor 110 is limitedly disposed inside the waterproof case 112 so that the driving motor 110 can smoothly operate even in a locked state.

The waterproof case 112 is composed of a case body 114 having an upper part opened and a lower part closed and having an inner shape and a cover 116 covering an opened upper part of the case body 114. The drive motor 110 Is inserted into the case body 114 while being fixed to the bracket 118 provided at the lower portion of the cover 116 and the driving motor 110 inserted into the case body 114 is hermetically sealed And is defined inside the waterproof case 112 by a cover 116 covering the opened upper portion of the body 114.

A normal speed reducer 122 is provided between the driving motor 110 and the bracket 118 mounted on the cover 116 to reduce the rotation of the driving motor 110 to obtain a large driving force. Is equipped with a normal cable gland 120 for guiding a cable for supplying power to the drive motor 110 side.

Here, the connection relationship between the case body 114 and the cover 116, the connection relationship between the drive motor 110 and the speed reducer 122, and the connection relationship between the cover 116 and the cable gland 120 are well known, The description is omitted.

On the other hand, on the closed lower outer side surface of the waterproof case 112, a plurality of cradles 126 are fixedly mounted.

The holder 126 includes a rod portion 128 extending horizontally outwardly from the lower portion of the waterproof case 112 and a ring portion 130 integrally formed at an end of the rod portion 128 do.

The rod portion 128 is fixedly mounted to the lower portion of the waterproof case 112 by a normal U bolt or the like as shown in the figure and one end of the rope 132 is connected to the ring portion 130, The other end of the rope 132 connected to the ground 130 is connected to a ground concrete foundation (not shown).

That is, the water-current generating apparatus 100 according to the present invention is disposed so as not to move within the closed water body by the rope 132 connecting the base 126 and the concrete foundation, Thereby preventing rotation along the top panel 140 and the first water flow forming means 150.

Here, it is preferable that three or more as shown in FIG. 2 are provided so that the holder 126 can stably support the driving motor 110 and the waterproof case 112.

The top panel 140 is mounted on the driving motor 110 thus formed and the first water jet forming apparatus 150 is mounted on the top panel 140.

The top panel 140 is provided in a plate-like shape as a portion exposed above the water surface, and is disposed outside the upper portion of the cover 116 of the waterproof case 114 as shown.

The top panel 140 is rotated by receiving the rotational force of the driving motor 112 and a rotational shaft 142 connected to the output shaft 124 of the speed reducer 122 is mounted on the rotational center of the top panel 140.

The rotating shaft 142 extends into the case body 114 through the cover 116 of the waterproof case 112 as shown in the figure and the rotating shaft 142 extending into the case body 114 extends to the inside of the case body 114, And is connected to the output shaft 124 of the speed reducer 122 via the coupling 144. [

A packing member such as a conventional mechanical seal may be interposed between the rotating shaft 142 and the cover 116 so as to maintain airtightness without interfering with the rotation of the rotating shaft 142, The connection between the rotary shaft 142 and the output shaft 124 of the speed reducer 122 via the coupling 144 is well known in the art and will not be described in detail.

The first water flow forming means 150 includes a plurality of buoyant bodies 152 radially fixed to the top panel 140 while being equally spaced on the top panel 140 so as not to interfere with the waterproof case 112 .

The buoyant bodies 152 are formed in a shape that can generate buoyancy, that is, both ends are closed and the inside is hollow cylindrical body, and the buoyant bodies 152 are formed in a waterproof case 112 are not submerged, and the buoyant bodies 152 themselves are buoyant enough to be semi-submerged.

On the other hand, the buoyancy members 152 are mounted on the top panel 140 so that the outwardly extending length of the top panel 140, that is, the length extending to the outside of the top panel 140, is adjusted.

To this end, a guide protrusion 154 protrudes along the longitudinal direction of the buoyant body 152 at one end side of the buoyant bodies 152 connected to the top panel 140, and one end side of the buoyant bodies 152 is connected A slider 156 is formed on the top panel 140 in which the guide protrusion 154 is slidably fitted.

That is, when the buoyant body 152 is connected to the top panel 140, the guide protrusion 154 formed on the buoyant body 152 is fitted to the slider 156, and the guide protrusion 154 is inserted into the slider 156 The buoyant body 152 is pushed or pulled along the ground slider 156 to adjust the stretching length of the buoyant body 152. [

When the length of the extension of the guide protrusion 154 is adjusted, the guide protrusion 154 is fixed to the slider 156 using the fixing bolts 158. The guide protrusion 154 is provided with a plurality of And a second bolt hole 160b communicating with the first bolt hole 160a is formed in the top panel 140 and the slider 156. The first bolt hole 160a is formed in the first bolt hole 160a.

That is, the fixing bolts 158 are sequentially fastened to the second bolt hole 160b and the first bolt hole 160a communicating with each other, whereby the buoyant body 152 is fixedly mounted to the top panel 140. [

Here, the guide protrusion 154 may be formed to have a dovetail or "T" -shaped cross section, and likewise, the slider 156 may be formed such that the devetail groove or "T & have.

In this way, uneven water flow is formed on the water surface by the buoyant bodies 152 extending in different stretching lengths while semi-submerged in water, and the irregular water flow formed in this manner increases the contact with the air, do.

Although three bushing bodies 152 are shown in FIG. 2, it will be understood by those skilled in the art that the number of bushing bodies 152 is not limited to three. In other words, the buoyant body 152 may be provided in three or more as long as the buoyant body 152 can stably balance during rotation.

The second water forming means 170 includes a paddle 172 for pouring air into the water as well as stirring the water to form a water stream while rotating along the buoyant body 152.

The paddle 172 is fixedly mounted on the other end side of the buoyant body 152 as shown and the paddle 172 is pushed from the upper side of the buoyant body 152 exposed above the water surface to float the water, And is formed so as to extend to the lower outside of the buoyant body 152 which is submerged in the water along the side surface opposite to the rotating direction of the buoyant body 152.

Meanwhile, the paddle 172 is formed with an injection flow path 174 for injecting air into the water.

The inflow channel 174 is formed to extend from the top of the paddle 172 to the bottom of the paddle 172 through the inside of the paddle 172 so that the inflow channel 174 extend from the top of the paddle 172 to the bottom side of the paddle 172 in a progressively narrowing manner.

The upper end of the injection path 174 is opened to the side of the rotation direction of the buoyant body 152 so that the air can be smoothly introduced into the injection path 174 side and the injection path 174 is formed in the injection path 174 A backflow preventing plate 176 for preventing water from flowing backward is mounted.

Preferably, a screen member (not shown) such as a wire mesh may be mounted on the upper end of the injection path 174 to prevent foreign matter,

The air injected into the water along the injection path 174 formed in this way forms air bubbles in the water and the air is easily dissolved in the water by the air bubbles to increase the concentration of dissolved oxygen in the water, The microorganisms are activated and the increase of the organic matter is suppressed, thereby improving the water quality.

The waterproof case 112, the cradle 126, the top panel 140, the buoyancy bracket 152 and the paddle 172 constituting the water flow generating device 100 according to the present invention can prevent durability and corrosion Stainless steel and stainless steel alloys.

Hereinafter, the operation state of the water flow generating device 100 according to the present invention formed as described above will be briefly described.

In order to use the water flow generating apparatus 100 according to the present invention, the water flow generating apparatus 100 is first constructed using the rope 132 under the condition that the water flow generating apparatus 100 according to the present invention is disposed in the closed water area And then the driving motor 110 is operated by applying power to the driving motor 110. [

When the driving motor 110 is operated, the top panel 140, the first water flow forming means 150, and the second water flow forming means 170, which are connected to the driving motor 110 in a rotating manner, A water flow is formed on the water surface by the water flow forming means 150 and the second water flow forming means 170 and air flows along the inflow path 174 of the second water flow forming means 170 in the water In water).

A rising flow is formed in the water (underwater) by the rotating first water flow forming means 150 and the second water flow forming means 170. The ascending flow is a phenomenon in which the water stagnant in the closed water area is forcibly circulated It comes into contact with air at the water surface.

The concentration of dissolved oxygen in the water is increased by the upflow and the air injected along the injection path 174, thereby reducing nutrients and organic matter such as nitrogen and phosphorus, And a green algae phenomenon does not occur.

The water current generating apparatus 100 according to the present invention thus formed minimizes the exposure of the apparatus since only a part of the top panel 140 and the buoyant body 152 and a part of the paddle 172 are exposed above the water surface So that it can be harmonized with the surroundings.

The water flow generating device 100 according to the present invention is configured such that the speed reducer 122 connected to the driving motor 110 and the driving motor 110 is limited to the inside of the waterproof case 112, So that the operating noise can be minimized.

The water flow generating device 100 according to the present invention is constructed such that the waterproof case 112, the cradle 126, the top panel 140, the buoyant chute 152 and the paddles 172 are made of stainless steel and a stainless steel alloy So that durability and corrosion can be prevented.

In addition, since the water flow generating device 100 according to the present invention has the pouring passage 174 for injecting air into the paddle 172, it is possible to easily inject and dissolve air into the water It also makes it possible to significantly increase the concentration of dissolved oxygen in the water.

The water-current generating device 100 is not limited to the configuration and operation of the embodiments described above. The embodiments may be configured so that all or some of the embodiments may be selectively combined so that various modifications may be made.

100: water flow generator 110: drive motor
112: Waterproof case 122: Reducer
126: Cradle 140: Top panel
142: rotating shaft 150: first water flow forming means
152: Buoyant body 154: Guide projection
156: slider 170: second water flow forming means
172: paddle 174: infusion line

Claims (10)

CLAIMS 1. A water-current generating device disposed in an enclosed water area to generate a water current,
The water-
A driving motor which is defined inside the waterproof case and is submerged in the closed water body;
A first water flow forming means for receiving the driving force of the driving motor and rotating to form a water flow on the water surface;
A second water flow forming means which rotates along the first water flow forming means and injects air into the water while forming a water flow on the water surface; And
And a top panel connecting the driving motor and the first water flow forming means,
The first water-flow forming means includes:
And a plurality of buoyant bodies radially fixedly mounted on the top panel at regular intervals on the top panel, wherein the buoyant bodies are closed at both ends and are formed in the shape of a hollow horizontal cylindrical tank body,
Wherein the second water flow forming means comprises:
And a paddle fixedly mounted on the other end side of the buoyant body, wherein the paddle is immersed in water along the side facing the rotational direction of the buoyant body from the upper side of the buoyant body exposed above the water surface so as to store water And is formed so as to extend outside the lower portion of the buoyant body.
The method according to claim 1,
The waterproof case includes:
An upper portion of which is opened and a lower portion of which is closed; And
And a cover covering an open upper portion of the case body,
Wherein the drive motor is inserted into the case body while being fixed to a bracket provided at a lower portion of the cover,
Wherein the drive motor inserted into the case body is confined within the waterproof case by the cover covering the open upper portion of the case body in a gas-tight manner,
A speed reducer is interposed between the drive motor and the bracket,
And a cable gland for guiding a cable for supplying electric power to the drive motor is mounted on the cover.
The method according to claim 1,
A plurality of cradles are fixedly mounted on the closed lower outer side surface of the waterproof case,
The cradle,
A rod portion fixedly mounted on a lower portion of the waterproof case and horizontally extending to the outside of the waterproof case; And
And an annular portion integrally formed at an end of the rod portion,
Wherein one end of the rope is connected to the loop portion and the other end of the rope is connected to a concrete foundation constructed on the ground.
The method of claim 2,
Wherein the top panel is spaced apart from the top of the cover,
And a rotating shaft extending through the cover and connected to the output shaft of the speed reducer through a coupling is mounted on the rotation center of the top panel.
delete The method according to claim 1,
The first water-flow forming means includes:
Wherein the buoyant body is buoyant so that the buoyant bodies are semi-submerged while the waterproof case with the drive motor is not sunk.
The method according to claim 1,
Wherein the buoyant bodies are mounted on the top panel so that the outwardly extending length of the top panel is adjustable,
Guide projections are formed on one end side of the buoyant members connected to the top panel along the longitudinal direction of the buoyant member,
Sliders are formed on the top panel to which one end side of the buoyancy members is connected,
Wherein the guide protrusion fitted to the slider is fixedly mounted by fixing bolts fastened to the guide protrusion through the top panel and the slider.
delete The method according to claim 1,
An infusion passage is formed in the paddle so that air can be injected into the air,
Wherein the pouring passage is formed to extend from an upper end of the paddle to a lower end of the paddle through the inside of the paddle, wherein the pouring passage is formed to gradually narrow from the upper end of the paddle to the lower end side of the paddle, .
The method of claim 9,
The upper end of the injection path is formed to be opened toward the rotational direction side of the buoyant body,
And a reverse flow preventing plate for preventing water from flowing back along the injection flow path is installed in the injection flow path.

Images