KR101337900B1 - Backdraft generator - Google Patents

Abstract

A backdraft generator according to the present invention comprises a circular support; and a plurality of backdraft generating guide parts placed on the outer circumference surface of the circular support and guiding stream water to the lower region of the circular support by flowing the stream water backward using the speed of the stream, wherein the backdraft generating guide parts include a channel pipeline for forming the vertical stream of the stream water; an inflow part for stream water placed at the upper end part of the circular support and forming one end of the channel pipeline; and a stream water discharge part placed at the other end of the channel pipeline and discharging the stream water. The backdraft generator according to the present invention improves the restoration of water quality by floating pollutants deposited on the bottom of the stream without a separate power source or increasing the concentration of oxygen on the bottom of the stream while the backdraft generator reduces the costs of maintenance, enables mass production thereof owing to the simple structure of the apparatus and the facility of manufacture, and can be made of eco-friendly materials being naturally decomposed.

Description

Backflow Generator {Backdraft Generator}

The present invention relates to a backflow generating device, and more particularly, to a simple structure, easy to mass production, and to a backflow generating device capable of improving the water quality by flowing backward the river water without a separate power generating means will be.

Common riverbeds, usually rivers or streams, have irregular heights.

1 is a schematic diagram of a flow rate of a typical stream.

As shown in FIG. 1, the contaminated river water quality that may worsen the water quality in the depression is likely to accumulate. Contaminated river water quality is not absorbed by livestock waste streams containing various nitrogen and phosphorus introduced from tributaries of rivers or domestic sewage, but also by eutrophication river water, plankton, etc. Leachate and the like.

In general, the flow velocity of rivers is weak at the bottom of the stream, and the flow rate is generally increased toward the upper layer. Accordingly, while there is a flow rate of the river, the above-mentioned polluted river water quality can be moved downstream in the upper layer and can be naturally purified while flowing. On the other hand, contaminated river water quality can not only accumulate in the river bed or the bottom of the river, where the flow rate of the river is weak or without, and causes water pollution.

Various measures are being taken to purify the polluted river water quality.

However, as a general manual work, the general water quality improvement method of cleaning the river floor or dredging the soil by dredging the floor at regular intervals is not only cumbersome but expensive. Similarly, an automatic purification / cleaning device may be provided at the bottom of the river, but in this case, a separate power source such as an electric device or a battery for driving the device is necessarily required. In addition, there is a disadvantage that the structure of the device itself is complicated and difficult to manufacture, there is a problem that the maintenance management costs such as repair or replacement every certain period of time.

Therefore, while improving the water quality of the stream, the structure is simple and easy to manufacture, it can be operated with no power / non-power, and the development of a water quality improvement device that can minimize the production and maintenance costs is urgently needed. .

The present invention has been proposed to solve the above problems, and is operated without a separate power source to improve the water quality resilience by floating the river water quality of the sediment deposited on the bottom or increasing the oxygen concentration of the bottom, Its simple structure and easy manufacturing make it possible to reduce maintenance cost and mass production, and to provide backflow generator that can be manufactured using eco-friendly materials that decompose the material of device naturally.

Backflow generator according to the present invention for achieving the above object, a circular support; It is provided on the outer circumferential surface of the circular support, and includes a plurality of reverse flow guides for flowing the river water back to the lower region of the circular support by using the flow rate of the river, the counter flow formation guide, the vertical flow of the river water to form Flow piping; A stream water inlet provided at an upper end of the circular support and forming one end of the flow path pipe; And a river water discharge part provided at the other end of the flow path pipe, through which the river water is discharged.

The countercurrent formation guide may flow the river water by a pressure difference generated from the distribution density of the streamline of the stream.

The cross-sectional arrangement of the river water inlet and the river water outlet may be arranged side by side so that the hydraulic pressure difference may occur, and the opening surface may be disposed in a direction opposite to the flow of the stream.

The countercurrent formation guide may be disposed in a spiral shape along an outer circumferential surface of the circular support.

The river water inlet and the river water outlet may be disposed to face each other at both ends of the circular support.

The river water discharge portion may have a conical shape in which the cross-sectional area is gradually increased as it moves away from the flow path pipe side.

Part of the conical shape of the river water discharge portion may be provided recessed on the bottom surface of the circular support.

The circular support may be made using recycled paper or compressed paper so as to be naturally degradable over time.

The reverse flow generating apparatus according to the present invention can operate without a separate power source to create a reverse flow flow downward by using the flow velocity of the river to float the river water quality, which is a pollutant deposited on the bottom of the river, or increase the oxygen concentration of the bottom. This can improve the water quality recovery ability.

The backflow generator according to the present invention has the advantage that the structure of the device is simple and easy to manufacture, thereby reducing maintenance costs and enabling mass production.

The reverse flow generating apparatus according to the present invention may be manufactured with a decomposable material such as compressed paper, and may be naturally decomposed over time to be environmentally friendly.

1 is a schematic diagram of a flow rate of a typical stream.
2 is a schematic perspective view of a backflow generator according to an embodiment of the present invention.
3 is a top view of FIG. 2.
Fig. 4 is a bottom view of Fig. 2. Fig.
5 is a view schematically showing a stream inflow of the river water inlet and stream water in order to simulate the operation of the backflow generator of the present invention.
6 is a view schematically illustrating a stream of the river water discharge unit and stream water in order to simulate the operation of the backflow generator of the present invention.

Hereinafter, an embodiment of a backflow generator according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a schematic perspective view of a backflow generator according to an embodiment of the present invention, FIG. 3 is a top view of FIG. 2, and FIG. 4 is a bottom view of FIG. 2.

The backflow generator according to the present invention includes a circular support 10 installed in a stream and an outer circumferential surface of the circular support 10, and uses a flow velocity of the river to reversely flow river water downward to lower the region of the circular support 10. It includes a plurality of countercurrent formation guide portion 20 to guide to.

Circular support 10 is provided in a cylindrical shape, the hollow portion is provided so that a predetermined space is formed therein. And, the river water inlet 22 is disposed on the upper surface of the circular support 10, a plurality of discharge grooves 11 are provided on the lower surface. The discharge groove 11 is formed to be connected to the river water discharge portion 23 disposed adjacent thereto, so that the river water discharged from the river water discharge portion 23 can be discharged while being guided by the discharge groove 11.

The circular support 10 supports the countercurrent formation guide 20 and forms a difference between the height of the river water inlet 22 and the river water outlet 23 of the countercurrent formation guide 20. do. That is, the circular support 10 of the stream bottom purification backflow generator of the present invention is provided to have a predetermined height, the water inlet 22 is disposed above the circular support 10, the circular support ( The water outlet 23 may be disposed on the bottom of the 10.
Accordingly, the pressure difference may be accompanied by a predetermined height difference, so that the stream flows downward by receiving the river water from the river water inlet 22. This backflow will be described in detail in the description of the operation of the backflow generator for riverbed purification.

The circular support 10 may be manufactured using environmentally friendly materials such as recycled paper or compressed paper that can decompose into river water over time. If it is installed in a certain area of the river and then decomposed into the river water over time, the removal cost is not only reduced, but also advantageous in terms of maintenance and management.

On the other hand, the shape of the support is not limited to the circle. Supports of any shape may be possible in which the height of the support is greater than or equal to a certain length. This is because the countercurrent formation guide 20 may operate only when the height difference between the river water inlet 22 and the river water outlet 23 is formed.

It is necessary to create a countercurrent flow of river water in order to float the contaminated river water quality in a pit at the bottom of the river or in a river with a slow flow of river water. To this end, in the present invention, the countercurrent formation guide 20 is provided. The countercurrent formation guide portion 20 is provided with a flow path pipe 21 for forming a vertical flow of the river water, and a stream water inlet 22 formed at an upper end of the circular support 10 and forming one end of the flow path pipe 21. It is provided at the other end of the flow path pipe 21, and includes a river water discharge portion 23 through which the river water is discharged.

As shown in FIGS. 3 and 4, the countercurrent formation guide 20 is disposed in a spiral shape along the outer circumferential surface of the circular support 10 while being spaced a predetermined distance from the center of the circular support 10.

The flow path pipe 21 is provided as an elongated conduit extending in the longitudinal direction, and is disposed spirally along a part of the outer circumferential surface of the circular support 10 (mainly, the upper, outer and lower regions of the circular support 10). .

The river water inlet 22 and the river water outlet 23 are disposed on the upper and lower surfaces of the circular support 10, respectively, and are disposed to face each other. The upper surface of the circular support 10 is provided with a river water inlet (22). The river water inlet 22 corresponds to the front end of the flow path pipe 21, and protrudes into the circular support 10.

The other end of the flow path pipe 21 is provided with a river water discharge portion 23. The river water discharge part 23 is connected to the flow path pipe 21 and is disposed along the lower surface of the circular support 10. The river water discharge portion 23 is provided in a conical shape in which its cross-sectional area is gradually increased from the flow passage pipe 21 toward the end portion, and a partial region around the river water discharge portion 23 is recessed inside the circular support 10. Can be deployed. The discharge groove 11 is connected to the end of the river water discharge portion (23).

Here, the cross-sections of each of the river water inlet 22 and the river water outlet 23 may be arranged in parallel with the upper end and the lower end of the circular support 10. That is, the cross-section arrangement of the river water inlet 22 and the river water outlet 23 is arranged side by side, the opening surface is arranged in the opposite direction of the flow of the river flow so that the pressure difference can occur. Through this, the principle that the river flows to form a countercurrent flow downward is due to the pressure difference generated from the distribution density of the streamline (streamline, streamline) of the stream, which will be described in detail in the operation of the device.

The countercurrent formation guide 20 having such a configuration receives the river water from the river water inlet 22 and moves downward through the flow path pipe 21, and is then discharged from the river water outlet 23 to the river bottom. In this process, due to the shape of the river water discharge unit 23 provided in a spiral shape, the river water may be discharged in a vortex form to float the river water quality, which is a pollution source deposited on the bottom of the river. In addition, it is possible to improve the water quality restoring power of the river by increasing the oxygen concentration of the bottom layer through the generation of the vertical flow of the river water.

In addition, the shape of the circular support 10 has a cylindrical shape has the advantage that can operate the device in response to the flow of the river from a variety of directions.

On the other hand, the stream water discharge portion 23 in the present embodiment is arranged to be discharged into the inner space of the circular support 10, the river water discharge portion 23 is disposed in the opposite direction in the circumferential direction of the circular support 10 It may be configured to discharge.

In addition, when it is necessary to increase the strength of the countercurrent flow, for example, when the flow velocity of the stream is slow or the distribution of the contaminated river water quality is large, the number of the countercurrent formation guides 20 installed in the circular support 10 is also It may be increased.

5 is a view schematically showing the stream inflow and stream water streams to simulate the operation of the backflow generator of the present invention, Figure 6 is a river water discharge to simulate the operation of the backflow generator of the present invention And a schematic diagram of a streamline of river water.

Hereinafter, a process of improving the water quality by operating the backflow generator according to the present embodiment will be described in detail with reference to FIGS. 5 and 6.

This countercurrent guide 20 is operated according to the energy conservation law of fluid mechanics. As shown in FIG. 1, a streamline, which is generally a fluid flow, has a slow flow rate at the bottom, and flows in parallel to form a constant flow rate when raised to a predetermined height toward the surface of the water. However, due to external factors, such as the presence of obstacles in the river, or changes in pressure or flow direction changes the spacing of the streamline, the narrower the streamline, the higher the flow rate, the lower the pressure. Conversely, the wider the streamline, the lower the flow rate and the higher the pressure. This principle is applied to the backflow guide 20.

First, the operation principle of the river water inlet 22 will be described in detail. As shown in FIG. 5, the opening of the river water inlet 22 is disposed along the movement direction of the river water. Whereas a streamline (flow path) is formed at a predetermined interval at the A point where the flow path pipe 21 is formed, an obstacle does not exist at the B point where the flow path pipe 21 is absent, so that the distance of the streamline is wider than the A point. do. According to Bernoulli's law, the velocity decreases and the pressure increases at point B rather than point A. Since the P out of the inlet part near the stream water inflow part 22 becomes larger than the pressure P in in the flow path piping 21, the flow which flows into the flow path piping 21 naturally arises. As such, even if no power source is provided, the river water may flow into the flow path pipe 21.

The operation principle of the river water discharge unit 23 will be described. As shown in FIG. 6, the river water discharge part 23 is formed in a conical shape and is formed to increase in cross-sectional area as it moves away from the flow path pipe 21. In addition, the cross-sectional arrangement of the river water discharge portion 23 is disposed in parallel with the river water inflow portion 22, the opening surface is disposed in the opposite side of the direction of movement of the river so that the hydraulic pressure difference can occur.

In this case, the streamline spacing in the vicinity of the river water discharge portion 23 is relatively reduced due to the shape of the river water discharge portion 23, compared to the streamline coming through the flow path pipe 21. As a result, the flow rate is increased at the point B compared to the point A, and the pressure is lowered. Therefore, the flow flow of the river water flows to the outside through the stream water discharge portion 23 from the flow passage pipe 21 naturally.

In this way, the cross-sectional arrangement of the river water inlet 22 and the river water outlet 23 is arranged side by side, the opening surface is arranged in the opposite direction of the flow of the stream so that the pressure difference can occur. The operation principle of the stream inflow 22 and the stream outflow is based on Bernoulli's law, and it is possible to generate a flow in which the river water flows back from the pressure change without force in accordance with the change of the streamline.

In addition, since the flow rate difference due to the difference between the height of the river water inlet 22 and the river water outlet 23 is different, the pressure difference of the river water inlet 22 is greater than the pressure difference of the river water outlet 23. Therefore, the stream flows downward by receiving the river water from the river water inlet 22.

In conclusion, through the countercurrent formation guide 20, it is possible to flow by the pressure difference generated from the distribution density of the streamline (streamline) of the stream, thus, the height of the circular support 10 from the bottom of the stream As much as possible, the flow of the upper stream can be induced to flow back to the bottom of the stream as much as possible. In addition, the stream discharge portion 23 is also arranged in a spiral shape along the bottom surface of the circular support 10 in a state spaced apart from the center of the circular support 10 in a parallel relationship with the arrangement of the river water inlet 22. Therefore, the river water can be discharged in the form of vortex stones.
When the countercurrent flow of the river water occurs, the river water discharged from the water discharge unit 23 may be discharged to the bottom of the river bottom, thereby floating the material that is the accumulated pollutant existing on the river bottom. . Eventually, pollutants at the bottom of the stream can be purged as they flow down the stream.
In addition, the flow rate is generated from the lower portion to the upper portion of the river water is evenly mixed, the river water containing oxygen in the upper portion of the river can easily descend to the lower portion of the river. Accordingly, the oxygen concentration of the stream bottom may be increased, and the dissolved oxygen amount DO may be increased in the stream bottom area, thereby improving the water quality restoring power of the stream.

 In addition, the structure of the device is simple and easy to manufacture has the advantage of reducing the maintenance cost and mass production. In addition, since the bottom surface of the circular support 10 is installed on the bottom of the river, the construction is completed, and thus it is convenient in device constructability.

In addition, since the circular support 10 can be manufactured from a degradable paper material such as compressed paper or recycled paper, the device may be naturally decomposed with time, and thus there is a natural eco-friendly advantage.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It will also be appreciated that many modifications and variations will be apparent to those skilled in the art without departing from the scope of the present invention.

10: circular support 11: discharge groove
20: countercurrent formation guide portion 21: flow path piping
22: river water inlet 23: river water outlet

Claims (8)

A circular support having a predetermined height difference and having a hollow section provided therein;
It is provided on the outer circumferential surface of the circular support, and includes a plurality of backflow guides for guiding the river water back to the lower region of the circular support by the pressure change generated from the streamline distribution difference of the stream by the height difference; ,
The countercurrent formation guide unit,
A flow passage pipe forming a vertical flow of the river water;
A stream water inlet provided at an upper end of the circular support and forming one end of the flow path pipe; And
It is provided at the other end of the flow passage pipe, and includes a river water discharge portion for discharging the river water inlet and the river water guided along the flow path pipe,
Cross-sectional arrangement of the river water inlet and the river water outlet is arranged side by side so that the pressure difference can occur,
The length of the stream from the water surface of the river formed by the circular support and the countercurrent guide portion and the upper portion of the stream water inlet and the length of the stream from the water surface of the river to the hollow portion of the circular support of the streamline distribution A difference occurs,
Backflow generator, characterized in that the river water is introduced into the river water inlet side by the pressure difference generated by the difference in the streamline distribution.
delete The method of claim 1,
And the opening surfaces of the river water inlet and the river water outlet are disposed in opposite directions of the flow of the stream.
The method of claim 1,
The countercurrent flow guide unit is arranged in a spiral shape along the outer circumferential surface of the circular support.
The method of claim 1,
The river water inlet and the river water discharge unit is disposed opposite to each other at both ends of the circular support.
The method of claim 1,
The stream water discharge portion backflow generator, characterized in that the conical shape that gradually increases the cross-sectional area as the distance away from the passage pipe.
The method according to claim 6,
And a portion of the conical shape of the river water discharge portion is provided by being recessed in the bottom surface of the circular support.
The method of claim 1,
The circular support is a backflow generator, characterized in that made using recycled paper or compressed paper so as to be naturally decomposable over time.

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