KR100280583B1 - Channel structure for seawater inflow of warp agent - Google Patents

Abstract

The present invention relates to a waterway structure for seawater inflow of a decanter, wherein the inlet (3a) is formed at a position higher than the outlet (3b) of the pipe-type waterway (3) formed in the upper structure (2) of the decanter. The pipe-shaped channel 3 is formed to be inclined so that it can be formed, and also the pipe-type channel 3 formed in the upper structure 2 is bent, and the cross-sectional area is reduced on the inner wall of the pipe-type channel 3. The narrow portion 4 or the plurality of protrusions 4a are formed, and the inclined portion 5 or the like is formed at the inlet 3a of the pipe channel 3, and the pipe channel 3 If both inlet (3a) and outlet (3b) of the higher than the stop water level is connected to the channel extension pipe (6) to the outlet (3b), the outlet (6a) of the channel extension pipe 6 is submerged in the seawater in the harbor It has a structure that can be located in the sea, which makes it easier to introduce seawater from the open sea into the harbor. It actively prevents seawater pollution in the harbor, and improves the water quality of the harbor by conveniently supplying the incoming seawater from the breakwater to the location of high pollution in the harbor far from the breakwater. If only the structure is replaced, the inflow of seawater will be easy, and the construction period and construction cost of the inclining agent to prevent seawater pollution in the harbor can be significantly reduced.

Description

Channel structure for seawater inflow of warp agent

The present invention relates to a pipe-type water channel formed in the upper structure of the decanter, and more particularly, to a seawater inflow channel structure of the decanter to facilitate the inflow of seawater into the harbor.

In general, the breakwater is a structure that is fixed to the bottom of the sea to block the wave force from the open sea to protect the sea area, the type of the breakwater (Rubble mound breakwater) and caisson (installed in shallow waters) There is a mixed type breakwater which is installed in the deep water using Caisson.

However, if the above breakwater is installed, seawater exchange between the inside and the outside of the port is not smooth, especially since the seawater in the contaminated port is not easily discharged in the sea area where tidal wave is small, not only the port is contaminated but also oxygen in the seawater Lack of will cause odor.

Therefore, in order to compensate for the above disadvantages, the introduction of seawater inflow function into the breakwater. That is, by allowing the introduced seawater to flow out to the outer sea outside the port, the seawater in the port is kept smooth while the seawater in the port is kept flowing, and the seawater in the port is supplied with oxygen in abundance. By doing so, it can greatly contribute to the improvement and preservation of water quality in the seawater.

Here, in the conventional structure that introduces the seawater inflow function to the sloping agent, which is a kind of breakwater, it is generally adopted to install a water channel in the lower surface portion of the super structure, and the caisson type is used as the upper structure. The conventional structure of the adopted warpant is shown in FIG.

That is, as shown in FIG. 8, a mound 101 having a predetermined height is horizontally constructed on the bottom of the sea, and a plurality of caissons 102 having a box shape on the mound 101 are formed of a breakwater. They are installed in the longitudinal direction, respectively, and form a “c” shaped groove 102a in the horizontal direction at the lower left and right sides of the caisson 102, respectively, by the caisson 102 and the caisson 102 groove 102a. A water channel 103 is formed, and an inlet 103a is formed at the front side of the water channel 103 to allow the external sea to flow therein, and at the rear side, an outlet through which the seawater through the inlet 103a can be introduced into the harbor ( 103b) is formed, the concrete block 104 is stacked on the outer sea side of the caisson 102 is a structure that can achieve the inclined 105.

When the surface of the incline 105 made of the above structure is a wave rises, the seawater is introduced into the port through the water channel 103 formed in the caisson 102 through the concrete block 104.

By the way, when the inlet 103b formed behind the waterway 103 is exposed to the top of the still water level of the sea water, the inlet water is higher than the water level of the sea water because the inlet 103b is formed above the water level. There is a drawback to disturbing the surface of the harbor while falling on the surface of the water, while the outlet 103b of the waterway 103 is submerged after the wave outside the decanter 105 in the state locked in the lower portion of the static water level When the water surface is lowered, since the inlet 103a of the waterway 103 is also located below the stationary water level, a large amount of the inflowed seawater flows back toward the external sea through the waterway 103, thereby significantly reducing the net inflow of the seawater in the harbor. As the water quality improvement effect in the harbor is insignificant, and the net inflow of the seawater is reduced as described above, the flow of the seawater into the harbor is not well formed. Because it is difficult to move from the port to the far point of the port, the seawater located in the far point had the disadvantage that the effect of improving the water quality can hardly be expected.

And, as described above, the channel 103 of the decanter 105 in the form of a caisson 102 is the caisson 102 and the caisson 102 between the inlet 103a of the inlet 103a of the channel 103 in its structure. There is a problem in that it is impossible to discharge all the inflow water to the bottom of the stop surface by installing a separate connection pipe in the outlet 103b of the waterway 103 because it is inevitable to leak into the gap of the wall consisting of the contact portion.

Accordingly, the present invention has been devised to solve the above problems, the seawater of the open sea can be easily introduced into the harbor through the breakwater, and a large amount of seawater can be introduced into the harbor. The purpose of the present invention is to provide a seawater inflow channel structure of a decanter, which enables the seawater to easily reach the contaminated area in the harbor and to solve the seawater pollution in the harbor.

The present invention for achieving the above object, the inclined pipe-shaped waterway is formed through the inner structure of the breakwater forming the breakwater, the inlet of the pipe-type waterway opened in the front wall of the upper structure of the seawater stop It is formed in a position higher than the water level, and the outlet of the pipe-type waterway opening on the rear wall of the upper structure is configured to be formed at a position lower than the static water level.

Here, the inlet cross-sectional area of the pipe channel can be made larger than the cross-sectional area of the outlet to facilitate the inflow of seawater, while bending the pipe channel formed in the upper structure by a predetermined angle to prevent excessive inflow of seawater during the typhoon. It is designed to suppress and prevent backflow of seawater.

In addition, when the pipe-type channel is formed at a position higher than the stationary water level, a channel extension pipe is installed at the outlet of the pipe-type channel for the inflow of sea water, so that the outlet of the channel extension pipe is lower than the stationary water level. It is possible to be located.

Further, by forming a narrow portion in which the cross-sectional area of the channel is reduced at a predetermined position of the channel, or by forming a plurality of protrusions in the inner wall of the channel, the flow energy of the seawater can be reduced, thereby preventing excessive inflow of external seawater. It is to be possible.

Therefore, by introducing the seawater of the open sea into the port more easily by the waterway of the breakwater having the structure as described above, it is possible to actively prevent seawater pollution in the harbor, and also to minimize disturbance of the surface sleep caused by the introduced seawater. .

1 is a partial cutaway perspective view showing the structure of the water inflow channel of the decanter according to the present invention.

FIG. 2 is a schematic diagram illustrating a water channel formed in the inclined upper structure of FIG.

3 is a perspective view showing one embodiment of a water channel according to the present invention.

4 is a schematic view showing another embodiment of a channel formed in the superstructure of the warp in accordance with the present invention.

Figure 7 is a schematic diagram showing a state in which a water supply pipe for pipes for seawater inlet is installed in accordance with the present invention.

Figure 6 is a schematic diagram schematically showing an embodiment of the waterway inner wall structure according to the present invention.

5 is a schematic diagram showing another embodiment of FIG.

8 is a partially cutaway perspective view showing the structure of the seawater inflow channel of the decanter according to the prior art.

* Explanation of symbols for main parts of the drawings

1: Decanter 2: Upper structure

3: pipe channel 3a: inlet

3b: outlet 4: narrow part

4a: projecting portion 5: inclined portion

6: channel extension pipe 6a: outlet

7: mound 8: concrete block

9: support wall 10: pressure discharge pipe

11: network α: downward angle

β: upward angle θ: constant angle

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a partial cutaway perspective view showing a seawater inflow channel structure of the inclined agent according to the present invention, and FIG. 2 is a schematic view schematically showing a channel formed in the inclined upper structure of FIG. Having a mound (7) is installed, the upper structure (2) integrally formed on the upper portion of the mound (7) is installed, the inclined pipe channel (3) is formed through the inside of the upper structure (2) The inlet 3a of the pipe channel 3 opened on the front wall of the upper structure 2 is formed at a position higher than the static water level of the seawater, and the outlet opening on the rear wall of the upper structure 2 is formed. 3b) is formed at a position lower than the static water level of the seawater, while the concrete block 8 is stacked on the outer sea side of the upper structure 2 so that the warpant 1 can be formed.

Here, when the water surface is raised by the waves hit the front of the inclined agent (1), the seawater is introduced through the inlet (3a) of the pipe-type waterway (3), so that the introduced seawater is submerged in the lower portion of the stop water level Since it is delivered to the outlet 3b, the seawater is delivered to the harbor along the outlet 3b without any disturbance of the water in the harbor. Since the inlet port 3a of the pipe channel 3 is located above the stationary water level, the seawater delivered to the outlet port 3b can be prevented from flowing back, and the external sea water delivered to the port through the pipe channel 3 can be suppressed. The net inflow of is significantly increased.

In addition, the above-mentioned stop water level is changed according to the tide in the actual sea area, seawater inflow water breakwater to which the present invention is applied mainly considering that the breakwater for inflow is mainly required in a seaport or a fishing port in the sea area where the difference between tides is not large For example, as in the east coast or south coast of the Republic of Korea, the difference between the average tidal wave is expected to be around 1m, the cross-sectional size of the pipe channel (3) also increases the seawater inflow and inside the pipe channel (3) It is expected to be at least 1m, considering the aspects of marine life to be attached and maintenance.

Therefore, the center of the inlet port 3a of the pipe channel 3 is made higher than the outlet port 3b of the pipe channel 3 installed lower than the mean low water level. If it is installed higher than or equal to the surface, it is possible to increase the net inflow of seawater than the prior art, and at the same time can reduce the disturbance of the water surface due to the influent.

On the other hand, the structure for further increasing the inflow of seawater by using the pipe-type waterway (3) has a cross-sectional area of the inlet (3a) of the pipe-type waterway (3) in which the external seawater is introduced, as shown in FIG. It is formed larger than the cross-sectional area of the outlet (3b), it is possible to increase the inflow rate of the open sea water into the harbor and to reduce the number of the plurality of pipe-type waterway (3) installed in the upper structure (2).

And, if the inlet (3a) of the pipe-shaped channel (3) is formed as large as described above, since the durability of the pipe-shaped channel 3 can be lowered structurally, the support wall (7) is formed inside the inlet (3a) It is installed in the vertical direction to support the inlet (3a).

In addition, FIG. 4 is a further embodiment of the pipe channel 3 formed in the upper structure 2, and the cross-sectional area of the upper structure 2 in which the inlet 3a of the pipe channel 3 is formed is shown. An inclined portion 5 having a gradually decreasing shape is formed, and the pipe-shaped channel 3 so that the pipe-shaped channel 3 formed inwardly along the inclined portion 5 can be inclined downward from a predetermined position. A downward angle α is formed at a predetermined position, and an upward angle β is formed at a predetermined position of the pipe channel 3 inclined by the downward angle α, so that the outlet of the pipe channel 3 is formed. (3b) is a structure that can be formed by a certain angle (θ) than the horizontal position.

Here, the reason why the pipe-shaped channel 3 is bent and installed in the upper structure 2 as described above is to cause local energy loss in the seawater flow in the pipe-type channel 3.

That is, during a typhoon, a large wave invades and generates excessive pressure and flow in the pipe-type waterway 3, thereby impairing the safety of the upper structure 2, and the water surface in the harbor may be disturbed due to excessive inflow.

Therefore, depending on the design wave conditions of the installation sea area of the present invention, it is necessary to cause a local energy loss of the flow in the pipe-like channel 3, where local energy loss is represented by Hv = kvv / 2g, where k is The loss factor is a constant determined by the local shape of the channel, where v is the velocity of the flow and g is the acceleration of gravity.

Therefore, since the amount of local energy loss is proportional to the square of the flow rate, the larger the flow rate, the faster the amount of energy loss. That is, if the pipe-shaped channel 3 is installed in a shape including a curve on the vertical plane, it is possible to locally dissipate some of the excessive energy by changing the direction of flow in the bent portion.

The bent degree of the pipe channel 3 is required to be more or less as the design wave of the sea area to which the breakwater is to be installed is large and small.

That is, the pipe-like channel 3 is bent downward by the downward angle α and is also bent upward by the upward angle β. In the present invention, the inlet 3a of the pipe-shaped channel 3 is a pipe. Since it is installed higher than the outlet 3b of the mold channel 3, the pipe angle channel 3 is formed by forming a deflection angle α and an upward angle β within a range larger than 0 ° and equal to or smaller than 90 °, respectively. The height of the inlet 3a and the outlet 3b of the pipe-shaped channel 3 are adjusted.

In addition, when the vertical distance between the bottom of the upper structure 2 and the outlet 3b of the pipe channel 3 is too close, depending on the water depth and construction conditions of the breakwater installation site, the outlet port 3b of the pipe channel 3 is too close. It is possible to scour the upper part of the mound at the rear of the upper structure 2 by the flow from the bar, and when it is necessary to reduce the scour, the spout is discharged from the outlet 3b of the pipe channel 3. The direction of the flow needs to be directed upward on the vertical plane, and if the direction of the flow ejected from the outlet 3b of the pipe-type waterway 3 is directed too much upward, the outflow hits the water surface and disturbs the water surface in the harbor. It may need to be limited according to the depth of the site.

Therefore, in the present invention, the range of the constant angle θ formed by the pipe channel 3 at the outlet 3b of the pipe channel 3 to the horizontal plane is greater than or equal to 0 ° and smaller than 25 °. .

On the other hand, the place where the pipe channel 3 suddenly bends so that the direction of the flow changes suddenly may be subjected to excessive pressure due to the large wave during the typhoon. In order to discharge the large pressure acting on the second bent position into the air, a pressure discharge pipe 10 is introduced to the air above the upper structure 2, and the pressure discharge pipe 10 is shown in FIG. As described above, the present invention can also be applied to a portion of the pipe channel 3 in which the passageway area near the inlet 3a of the pipe channel 3 is reduced.

In other words, as described above, the inlet portion 3a of the pipe-like channel 3 forms an inclined portion 5 having a gradually decreasing cross section, thereby facilitating the inflow of seawater by reducing the energy loss of the incoming seawater. By bending the pipe channel 3 and installing it inclined as described above, local energy loss is induced to buffer the strong water pressure generated in the pipe channel 3, thereby inducing the energy loss of the seawater. This is to prevent excessive flow of sea water caused by strong waves occurring during the typhoon.

In addition, a large wave pressure is generated due to the influx of waves on the inner wall of the pipe-type channel 3 which is inclined downward by the downward angle e of the pipe-type channel 3, thereby reducing the wave pressure to reduce the A pressure discharge pipe 10 is installed in the upward direction of the pipe channel 3 so as to prevent excessive inflow, while a net 11 is provided on the inclined portion 5 of the inlet 3a of the pipe channel 3. ) Is installed to facilitate the inflow of seawater by preventing the crushed or coarse stone of the concrete block (8) flowing into the seawater.

On the other hand, FIG. 5 shows the pipe-shaped channel 3 formed horizontally on the upper structure 2 at a position higher than the stationary water level. The bottom surface of the upper structure 2 installed on the mound 7 is higher than the stationary water level. Is installed in the position, the pipe-like channel 3 is formed in the horizontal direction of the upper structure (2), the channel extension pipe for the inlet of the sea water into the outlet (3b) of the pipe-type channel (3) ( 6) is installed so that the outlet 6a of the channel extension pipe 6 can be located at a position lower than the stop water level.

That is, the channel structure as described above is used when the bottom surface of the upper structure (2) can be installed at a position higher than the static water level in order to facilitate the production of the upper structure (2), the upper Since the pipe channel 3 formed in the structure 2 is naturally located above the stationary water level of the seawater, the channel at the outlet 3b of the pipe channel 3 in order to send the incoming seawater below the stationary water level in the harbor. The extension pipe 6 is integrally formed and provided so that the outlet 6a of the channel extension pipe 6 can face the harbor.

In addition, the pipe-type waterway 3 installed in the upper structure 2 as described above is generally designed to smoothly inflow a large amount of seawater, but on the other hand, the seawater due to large waves, such as during typhoons Since excessive water flow causes surface disturbances to occur due to the sea water, the narrowing portion whose cross-sectional area is reduced in the inner wall of the pipe-type waterway 3 to suppress this phenomenon is shown. By forming 4) or by forming a plurality of protrusions 4a, the cross-sectional area of the inner wall can be adjusted.

That is, the narrow portion 4 of a predetermined section is formed on the inner wall of the pipe channel 3 to reduce the cross-sectional area of the pipe channel 3, or a plurality of protrusions on the inner wall of the pipe channel 3 By forming (4a) at a predetermined distance, the flow energy of the seawater is reduced through the reduction and expansion of the cross-sectional area in the pipe-like channel 3, thereby controlling the rapid inflow of seawater.

Here, the greatest features of the present invention will be described as follows.

First, in order to facilitate the inflow of seawater, a pipe-type waterway 3 formed in the upper structure 2 of the decanter 1 can be formed at a position higher than the inlet 3a. Pipe-like channel 3 so as to be formed to be inclined.

On the other hand, in order to prevent the inflow of the seawater and the disturbance in the harbor by controlling the rise of seawater due to excessive or excessive seawater inflow due to the large waves during the typhoon, the pipe-type water channel formed in the upper structure (2) (3) to be bent and to form a narrow portion (4) and a plurality of protrusions (4a) on the inner wall of the pipe-like channel 3 or cross-sectional area gradually in the inlet (3a) of the pipe-like channel 3 The inclined portion 5 and the like which are reduced are formed.

Then, in order to save the construction cost of the inclined agent 1, when the bottom surface of the upper structure 2 is installed at a position higher than the stop level of the seawater, the inlet port 3a or the outlet port 3b of the pipe channel 3 Since all of them are higher than the stop level, the outlet pipe 6 is connected to the outlet 3b so that the outlet 6a of the channel extension pipe 6 can be located in the seawater in the harbor.

Therefore, the seawater of the open sea is easily introduced into the harbor by the pipe-type water channel 3 having the above structure, and the introduced seawater is easily reached to the distant part of the harbor without disturbing the harbor. By activating other seawater exchange, seawater pollution in the harbor can be improved.

As described above, the seawater inflow channel structure of the decanting agent according to the present invention actively prevents seawater contamination in the harbor by introducing the seawater of the external sea into the harbor more easily, and also introduces the introduced seawater into the harbor. Improved water quality in the port by conveniently supplying up to the high position, and by replacing only the upper structure with pipe-type waterway using the existing inclinant, seawater can be easily introduced. The construction period and the construction cost of this will be significantly reduced.

Claims (5)

A mound 7 having a certain height is provided at the bottom of the seabed, and a pipe-type channel 3 in which the inlet port 3a of the outer sea side is formed higher than the outlet port 3b of the inner sea side is formed inside the mound 7. In the seawater inflow structure of the inclined agent in which the concrete structure 8 is piled up on the outer sea side of the upper structure 2, the inlet port 3a of the pipe channel 3 is provided. The seawater inlet channel structure of the inclined agent, characterized in that the supporting wall (2) is installed in the vertical direction to support the inlet (3a) from the weight of the upper structure (2). A mound 7 having a certain height is provided at the bottom of the seabed, and a pipe-type channel 3 in which the inlet port 3a of the outer sea side is formed higher than the outlet port 3b of the inner sea side is formed inside the mound 7. In the seawater inflow structure of the inclined agent in which the concrete structure 8 is piled up on the outer sea side of the upper structure 2, the inlet port 3a of the pipe channel 3 is provided. ) Waterway structure for the inflow of seawater, characterized in that the net 11 is installed in the front. A mound 7 having a certain height is provided at the bottom of the seabed, and a pipe-type channel 3 in which the inlet port 3a of the outer sea side is formed higher than the outlet port 3b of the inner sea side is formed inside the mound 7. In the inlet 3a of the pipe-type channel 3 in the seawater inflow structure of the inclined material in which the concrete structure 7 is piled up on the outer sea side of the upper structure 2, the provided upper structure 2 is provided. A downward angle α is formed so that the pipe-shaped channel 3 can be inclined downwardly at a predetermined distance from the), and at a predetermined position of the pipe-shaped channel 3 inclined by the downward angle α. An upward angle β is formed so that the outlet port 3b of the pipe channel 3 can be formed by a predetermined angle θ higher than the horizontal position. A mound 7 having a certain height is installed at the bottom of the seabed, and a pipe-type waterway 3 having an inlet 3a on the outer sea side higher than the outlet 37 on the inner sea side is formed above the mound 7. In the seawater inflow structure of the inclined agent in which the concrete structure 8 is piled up on the outer sea side of the upper structure 2, the outlet structure 3 provided with the upper structure 2 is provided. ) Is provided with a channel extension pipe 6 for inflow of seawater into the harbor, so that the outlet 6a of the channel extension pipe 6 can be installed toward the harbor at a lower position than the stop water level. Waterway structure for seawater inflow of decanter. A mound 7 having a certain height is provided at the bottom of the seabed, and a pipe-type channel 3 in which the inlet port 3a of the outer sea side is formed higher than the outlet port 3b of the inner sea side is formed inside the mound 7. In the seawater inflow structure of the inclined seawater in which the concrete block 8 is piled up on the outer sea side of the upper structure 2, the provided upper structure 2 is provided. At least one narrow portion 4 of a predetermined section is formed to reduce the cross-sectional area of the mold channel 3 so that the flow energy of the seawater introduced through the reduction and enlargement of the cross-sectional area in the pipe channel 3 can be reduced. A waterway structure for seawater inflow of a decanter.