KR20040064752A - Water-Channer Control Appatus and Control Method for Cooling System - Google Patents

Abstract

PURPOSE: A water-channel control apparatus and a water-channel control method are provided to prevent an occlusion of an inlet channel and temperature rise of water. CONSTITUTION: A fluid discharge line(14) having nozzles is arranged in a surface area, across an inlet channel(10) and a hot water drain channel. The fluid delivered by a fluid delivery unit is discharged through the nozzles, and a fluid wall(18) is formed such that the fluid wall is protruded from the surface of water in the surface area. A flow field is formed centering from the fluid wall. The inlet channel permits a deep water inlet(24) to be formed underneath the fluid wall and the flow field to serve as an anti-fouling flow field(20). The hot water drain channel allows a deep drainage port to be formed underneath the fluid wall. The fluid wall is arranged at the outlet side of the hot water drain channel, and the deep drainage port is arranged deeper along the depth of water. An agitating flow field is formed between the fluid walls.

Description

Water-Channer Control Appatus and Control Method for Cooling System

The present invention relates to a waterway control device and a waterway control method for a structure in which a waterway for cooling is installed, and more particularly, to prevent access to a water intake such as a marine organism or a floating material that is to be introduced from surface water during intake using a fluid membrane. In addition, the present invention relates to a channel control apparatus and a channel control method for inducing the inflow of deep water and inducing the rapid agitation of the warm and deep water to prevent the water temperature rise in the warm drainage discharge area.

In general, a structure in which a water intake and a hot drainage for cooling are formed may include a power plant and an ironworks. FIG. 1 is an exemplary view illustrating the installation of a water intake and a hot drainage. to be.

Large scale power generation facilities, such as nuclear power generation facilities (1), have to be constructed in the coastal area in terms of securing a large amount of cooling water.

That is, a nuclear power plant uses heat generated during nuclear fission of uranium to make water in the steam generator 2 into steam, and rotates the turbine 3 by the force of the steam to produce electricity.

The steam turned to the turbine (3) is made of cooling, water in the condenser (4) is sent to the steam generator (2), in which the seawater is used as cooling water in the process of converting the steam back into water.

Therefore, in a structure having such a cooling system, a structure for intake and drainage is provided.

These water intakes (5) and drains (6) are discharged not only from nuclear power plants, but also from all thermal power plants and general industrial facilities.They are large-scale structures that can be displayed on the map and are about 900 meters long, 30 meters wide, and 10 depth deep. Up to a meter.

As a structural method for the intake and drainage, it is classified into two types as shown in FIG.

This is an antifouling system to prevent infiltration by foreign matter from surface water, for example, intake of aquatic or floating materials such as jellyfish, shrimp, anchovies, etc., and deep water for cooling water temperature in consideration of the rapid rise of surface water temperature in summer. It is divided in terms of intake.

Fig. 2A is a water intake in the form of an open channel, called a curtain wall, which builds a levee at the inlet side of the channel to prevent entry of organisms or foreign matter floating in the surface water and from the bottom of the curtain wall 7 to the border. Induced deep water inflow.

FIG. 2B is a water intake pipe type in which a water intake pipe is embedded at a position of deep water so as to carry out antifouling and deep water inflow, and is divided into a horizontal intake method and a vertical intake water intake pipe.

However, the curtain wall 7 is a beam-shaped embankment with both sides of the waterway where the lower part is not supported. Picky.

On the other hand, the deep intake pipe method is more difficult to maintain than the curtain wall method when the deep pipe is closed, and the installation of the deep pipe is difficult, followed by the installation of a large capacity pump for the inflow of deep water or a facility for managing this. There is a problem.

In particular, in the case of nuclear power, the cooling water requires about 60 to 70 m ³ / s flow rate, the deep pipe method is followed by a bunch.

For this reason, a simple waterway method is used for the water intake system currently applied in Korea, and the most commonly used as an antifouling structure is the installation of an antifouling screen.

The antifouling screen is provided in the form of a general net to collect marine life or suspended matter distributed in the surface water, and to install a separate recovery device on the antifouling screen to periodically remove foreign substances collected on the antifouling screen.

However, it is obvious that such antifouling screens do not induce deep water inflow since the inflow of deep water is excluded.

Moreover, antifouling screens are severely influenced by the currents in the structure of the structure that filters foreign matters distributed in surface water against the currents, and they are easily damaged during typhoons and storms. Is a problem.

In addition, the collected marine organisms and suspended solids are first stored in a collection tank for collecting them, and then disposed of every day, which is not preferable in terms of preservation of marine ecosystems.

On the other hand, a large amount of cooling water (sea water) coming through the intake of the power plant is cooled through the condenser ban pipe and then discharged into the sea area as it is called such discharge water.

The hot water is discharged from the drain to the coast in a state of about 7 ℃ ~ 9 ℃ higher than that of natural seawater, but it is hardly lowered to 5m or less because the density is slightly lower than that of seawater.

Waste heat from the discharge of hot water can change the temperature of the surrounding water, which can change most of the physical properties of the seawater such as the density, viscosity, vapor pressure, surface tension, and gas solubility of the surrounding water. This can exacerbate the vertical mixing of seawater and affect the distribution of dissolved oxygen and salinity.

In particular, a decrease in dissolved oxygen directly damages fish and shellfish, and a change in density and viscosity may cause a change in depth by increasing the sedimentation rate of suspended solids and reducing the transport capacity of river soil during the dry season.

Therefore, such a hot water drainage is one of the most complaints in industrial structures that discharge hot water, such as power plants, and the small and large collective actions of nearby residents in relation to the hot water discharged from thermal power plants or especially nuclear power plants constructed and operated offshore, It is well known that damages lawsuits and compensation payments have been tediously repeated.

In addition, in nuclear power generation, when the discharged hot wastewater is recycled by moving in the direction of the intake port, the cooling function of the turbine may be reduced, thereby reducing power generation efficiency.

Accordingly, the construction site of a nuclear power plant should be thoroughly evaluated in advance by evaluating numerous factors such as the selection of the location of the cooling water intake and the change of the surrounding environment by the discharge of the hot water, the change of the ocean dynamics due to the installation of coastal structures, and the change of the sedimentation environment. Emissions of hot water, such as water, have affected the degree of freedom of plant design.

For this reason, it is necessary to quickly stir with deep water in order to reduce the influence of the warm water, and as illustrated in FIG. 3, a bubble stirring method, a deep discharge method, an agitation method by embankment, and the like are also developed.

In the bubble stirring method of FIG. 3A, a bubble generator is installed on the bottom of the sea to discharge the warm water by agitation as the depth of the water rises, and the deep discharge method of FIG. 3B is installed in the deep water by installing a warm water discharge pipe on the sea bottom. Direct discharge of warm water

In addition, the dike stirring method of Figure 3c is to let the discharged to the sea in a state in which the hot water and the deep water is stirred in the dike.

However, the discharge structure also had to be solved in terms of the input and maintenance of excess material in accordance with the installation of the intake as described above.

Accordingly, the present invention has been made in order to improve the above problems, in the structure in which the water intake and the hot water drainage pipe for cooling is formed, to prevent the blockage of the pipeline by the marine ecosystem and floating during intake and seawater by direct discharge of the warm water during warm water drainage It is an object of the present invention to provide a waterway control device and a waterway control method of a structure having a waterway for cooling to prevent a temperature rise.

The present invention for this purpose is to install a fluid boundary wall in accordance with the movement of the fluid near the surface water of the intake and the hot water drainage so that the lower portion of the fluid boundary wall to be the inlet and outlet of the water channel to induce the coolant flow from the deep water at the time of intake It acts as a membrane, and in the case of warm drainage, rapid agitation of deep and warm drainage is induced.

1 is a schematic explanatory diagram showing an arrangement state of a nuclear power plant as an example of a structure in which a water channel for cooling is installed, and a conceptual diagram of a nuclear power plant for explaining a cooling system.

Figure 2 is a cross-sectional explanatory view showing a water intake method of the conventional water intake;

3 is an explanatory cross-sectional view showing a discharge method of a conventional hot water drainage,

4 is a plan explanatory view and a side cross-sectional view and a front cross-sectional view for explaining the water intake channel side in the channel control apparatus and the channel control method according to the present invention;

5 is a plan explanatory view and a side cross-sectional view and a front cross-sectional view for explaining the on and off channel side in the channel control apparatus and the channel control method according to the invention,

6 is a conceptual view illustrating a fluid discharge line according to the present invention.

-Explanation of symbols for the main parts of the drawings-

10-intake, 12-warm drain,

14-fluid discharge line, 16-fluid conveying means,

18-fluid boundary wall, 20-antifouling flow field,

22-stirred flow field, 24-deep inlet,

26-deep discharge outlet, 28-nozzle,

30-support, 32-support,

34-fixture, 36-fasteners,

38-boundary jaws, 40-sessions,

42-rail, 44-flange,

46-clamp, 48-bracket,

50-anchor bolt, 52-guide,

54-Roller, 56-Bolt,

DETAILED DESCRIPTION Hereinafter, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. . Other objects, features, and operational advantages, including the purpose, working effects, and the like of the present invention will become more apparent from the description of the preferred embodiment.

For reference, the embodiments disclosed herein are only presented by selecting the most preferred examples to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment, Various changes and modifications are possible within the scope without departing from the technical spirit of the present invention, as well as other equivalent embodiments will be found.

4 is a plan view and a side cross-sectional view and a front cross-sectional view for explaining the water intake channel side in the channel control device and the channel control method according to the present invention, Figure 5 is a water channel control device according to the present invention and In the channel control method, a plan view, a side cross-sectional view, and a cross-sectional explanatory view for explaining the on-off drain side.

In addition, Figures 4c and 5c shows the mounting means of the fluid discharge line in the channel control apparatus according to the present invention, Figure 6 is a conceptual view for explaining the arrangement of the fluid discharge line according to the present invention.

The present invention installs a fluid discharge line (14) having nozzles (28) formed at regular intervals in the surface depth zone across the channels of the water intake (10) and the hot water drainage (12) for cooling and the fluid conveying means (16). The fluid pressurized from the nozzle 28 is discharged from the nozzle 28 to form a fluid boundary wall 18 protruding to the water surface in the surface depth zone, and moved downwardly and upwardly along the fluid boundary wall, centering on the fluid boundary wall 18. By forming a flow field remote from the water surface, the intake passage 10 allows the deep inlet 24 to be formed below the fluid boundary wall 14, and at the same time the flow field remotes the biomass grouped in the surface water ( 20), and the on-wall drain 12 forms a deep discharge outlet 26 under the fluid-boundary wall 14, and the fluid-boundary wall 14 on the outlet side of the on-off drain 12 according to the depth of water. Can be installed in multiple stages The deep discharge outlet 26 is deeply arranged according to the seam, and the flow field between the fluid boundary walls 14 becomes the stirring flow field 22 flowing in the opposite direction, so that the warm and deep waters are stirred and discharged at each depth stage. It is a channel control method of a structure equipped with a channel for cooling.

Here, the conduit of the intake path is formed in the water channel of the intake channel 10 to form a recirculation channel 40 connecting the channel and the remote location so that the remote of the pollutant to be remoted by the antifouling flow field 20 is induced. It is characterized by being discharged to a remote location along the current and the water flow path 40 by the flow field 20.

To this end, the present invention provides a water channel control device, and the present invention provides a fluid discharge line (14) and a fluid discharge line installed in a surface depth zone across a channel of a water intake passage (10) and a hot water drainage passage (12) for cooling. Fluid boundary wall (18) formed by the fluid delivery means (16) for transferring fluid to line (14) and fluid discharged from fluid discharge line (14) by the fluid delivery means (16) and the fluid boundary wall (18). A water inflow passage provided below the fluid boundary wall 14 and the agitation flow passage 22 formed on the intake passage 10 side and the warm drainage passage 12 formed by the flow field provided with the formation of The deep inlet 24 of (10) and the deep discharge outlet 26 of the warm drainage channel 12 are comprised.

Here, the fluid discharge line 14 is characterized in that the nozzle 28 is formed in the pressure-resistant hose at a predetermined interval so that the fluid boundary wall by the fluid discharge is formed and is fixed to both side walls of the waterway by the mounting means (29).

Here, the mounting means 29 is characterized by consisting of a support 32 to be installed on the inner wall of the channel including a support 30 for supporting the pressure-resistant hose and a fixing table 34 is installed on the upper surface of the channel embankment.

In addition, the fluid discharge line 14 is branched from the fluid conveying means 16 and is branched so that the nozzle 28 is connected to the adjacent fluid discharge line 14, and the adjacent fluid discharge line 14 The binder 36 is installed to maintain the neighboring state.

On the other hand, the fluid boundary wall 18 is formed by the release of bubbles, the upper surface of the water is characterized in that the boundary jaw 38 protruding into the water surface by the bubble is formed.

On the other hand, in the water channel of the intake passage 10, the contaminants approaching the fluid boundary wall 18 are remoted to the front of the water channel and to the water outlet by the flow field formed by the antifouling flow field 20. It is characterized in that the return channel 40 is formed up to a predetermined position.

On the other hand, the water outlet port side of the warm water channel 12 includes a moving means to adjust the installation position of the fluid boundary wall 18 along the longitudinal direction of the warm water channel 12 is provided with a fluid discharge line, the moving means is a warm drain Rail 42 is provided along the side of the (12), characterized in that the mounting means 29 is fixed to the rail 42 to be movable.

In addition, the fluid boundary wall 18 provided in the on-off drainage path 12 is arranged in multiple stages so as to form a deep discharge outlet 26 that deepens depending on the depth of water, and the fluid boundary wall 18 is disposed between the fluid boundary walls 18 and the fluid boundary wall 18. The stirring flow field 22 according to the opposite flow field is formed.

As described above, the present invention provides a water channel control apparatus and a water channel control method for inducing deep intake, antifouling, and deep stirring discharge through simple facilities in a water channel facility required for a large-capacity cooling system.

The present invention for this purpose is to use the fluid boundary wall 18 to provide the inlet and outlet below the fluid boundary wall.

That is, according to the present invention, the curtain wall method is performed on the intake path side using the fluid boundary wall 18, and the modified multistage bank discharge method according to the curtain wall is applied to the on / off side.

The fluid boundary wall used in the present invention can form a high pressure sea boundary wall using sea water, but a bubble wall by compressed air is preferable in terms of equipment.

Compressed air is advantageous for use in delivering pressure of a fluid, a thick fluid wall caused by bubbles, and a clear boundary due to a bubble membrane.

In addition, because it is an incompressible fluid, it is possible to install a compression tank (not shown) as a medium in the fluid conveying means 16, so that the intermittent operation of the compressor is possible and the gas conveying pressure of a constant pressure is possible.

On the other hand, in order to form a sufficient fluid boundary wall 18 by the discharge of the compressor body through the fluid discharge line 14, the nozzle 28 is formed in the fluid discharge line 14 at intervals such that the released bubbles interfere with each other. It is necessary.

The fluid discharge line 14 preferably uses a pressure hose that is more flexible than a rigid pipe when considering the deflection of other weights or moments caused by current flows, and a pressure loss at a long distance due to the arrangement of the nozzles 28 is expected. Therefore, the nozzles 28 of the present invention are installed adjacent to each other by branching.

That is, considering that the width of the waterway is about 30m, the greater the distance at the time of bubble discharge, the pressure loss follows, so that one fluid discharge line 14 may be insufficient to provide sufficient fluid boundary wall 18.

For this reason, the width of the channel can be divided into sections, and for example, the width of the channel can be divided into four sections to pressurize the compressed air in each section, or as shown in FIG. It is also preferable to use.

At this time, the pressure hose is branched from the fluid conveying means 16 and the branched nozzles 28 are arranged to be connected to the neighboring pressure hose, and the pressure hose is fluid, so that the binding hole 36 is installed to maintain the neighboring state.

When the intersection is cut, the binding hole 36 is also mediated. The flange 44 is integrally formed at the binding hole 36, and the clamp 46 is mounted on the fluid discharge line, so that the clamp 46 and the binding hole ( The disconnection portion of the pressure hose is coupled through the binding hole 36 through the flange 44 of 36).

Therefore, the fluid discharge line 14 disposed in the water channel will be provided in the form of a pressure hose bundle, and the arrangement of the fluid discharge line 14 and the interval between the nozzles 28 will be determined experimentally according to the water channel, the depth and the discharge pressure. will be.

On the other hand, if only the pressure hose itself is applied to the waterway there is a fear that the fluid boundary wall of the elliptical cross-section that extends across the waterway.

In addition, there is a fear of fluctuation due to the current, there is a risk of affecting the formation of the fluid boundary wall below the surface depth, there is a fear of damage to both ends of the pressure hose.

Therefore, it is necessary to fix the starting portion of the pressure hose below the surface depth of the both sides of the channel, and the present invention for this purpose is to provide a separate mounting means 29 in close contact with the pressure side wall of the channel.

The mounting means consists of a support 32 which is responsible for the surface depth, a pressure hose at the end of the support 32 as shown in FIG. .

The support 30 is fastened with the anchor bolt 50 installed on the side wall of the channel through the bracket 48 installed on the support 32, and the fixing table 34 is also fastened with the anchor bolt 50 installed on the channel bank.

Then, the guide 52, such as the binding port is formed so that the pressure hose which is the fluid discharge line 14 is guided or fixed thereto.

By the mounting means 29, the pressure hose is shown to be fixed to the channel side wall, it is to prevent the flow back and forth by the current.

Therefore, the curtain wall is formed as a simple facility in the intake passage by the fluid boundary wall according to the pressure hose and the nozzle, and the flow field by the formation of the fluid boundary wall serves as the antifouling flow field 20.

First, the fluid boundary wall 18 caused by bubbles is formed as a boundary jaw 38 protruding above the water surface to form a bubble jaw, which forms a boundary wall from less than the surface depth to the water surface.

Then, as the bubble rises, a flow field divided around the fluid boundary wall 18 is generated, and a current flow away from the water surface is formed around the boundary jaw 38.

In other words, the bubbles released below the surface depth are sufficient to steer the vessel in the dock by a strong flow field due to the bubbles, and form a strong flow field with the bubble walls and the water surface strong enough to be applied to the conductor system.

The boundary jaw 38 and the flow field serve as an antifouling membrane to prevent infiltration by the intake of colonies or floating objects such as jellyfish, shrimp, etc., which are crowded at the surface depth.

In addition, the surface water is prevented from infiltrating into the water intake by the fluid boundary wall 18, and the deep water inlet 24 is formed in the lower portion of the fluid boundary wall 18, thereby introducing the deep water.

Therefore, the boundary wall is formed at the entrance of the intake passage by a simple facility, and the fluid boundary wall compensates for the weakness of the structure like the conventional curtain wall, so there is little risk of damage, and the fluid boundary wall itself is a marine life or floating material. Is not contaminated by

In addition, the present invention utilizes the antifouling flow field 20 according to the formation of the fluid boundary wall 18 to discharge the contaminants back to the ocean.

To this end, by installing the recirculation waterways on both sides of the intake water inlet to guide the pollutants flowing by the antifouling flow field 20 to the regeneration waterway 40 to discharge them back to the ocean.

In this way, it is possible to minimize damage to marine ecosystems such as shrimp and anchovies.

On the other hand, the fluid barrier wall is arranged on the side of the water drain passage 12 so as to play a different role from the curtain wall of the intake passage.

That is, the water intake passage 10 is the main purpose of performing a rapid equilibrium of the water temperature through the rapid agitation with the deep water, compared to the fluid boundary wall 18 is installed in terms of deep water inflow and antifouling Will be.

The most preferable for this is the deep discharge method, the present invention is to achieve the same action and effect as the deep discharge method through the agitated through the underwater boundary wall, such as curtain wall, and the multi-level underwater boundary wall and flow field depending on the depth.

According to the present invention, the fluid boundary wall 18 is arranged in multiple stages according to the water depth, and the multi-stage fluid boundary wall 18 is gradually deepened in the position of the deep discharge outlet 26 and agitated between the fluid boundary walls 18. Sequential and rapid deep water agitation is performed.

In more detail, the three-stage fluid boundary wall 18 as shown in the drawing has a deep discharge outlet 26 deepening in three stages, and has a two-stage stirring zone between the fluid boundary walls 18. do.

That is, the firstly discharged warm water is agitated with the deep water while being introduced into the deep discharge outlet 26 under the fluid boundary wall 18.

Next, the warm and drained water introduced between the fluid boundary walls 18 is discharged to the next deep discharge outlet 26 in a state mixed with the deep water, and a part is flown by stirring in opposite directions between the fluid boundary walls 18. Deep water and warm water are stirred rapidly.

That is, the flow field between the fluid boundary walls 18 is a stirring flow field is formed by the flow field in the opposite direction.

Next, the stirred warm wastewater is discharged to the post-deployed deep discharge outlet 26, which is in turn flowed through the stirring flow field 22 between the post-arranged fluid boundary walls 18 to the deeper deep discharge outlet 26. It is discharged.

Sudden agitation and final discharge by this multi-stage agitation is also discharged into deep water, so that the length of the channel in the warm drainage channel can be reduced.

In addition, in the warm drainage discharge, the location of the fluid boundary wall 18 serving as a dike needs to be adjusted within the channel length direction in consideration of the surrounding conditions, for example, high water and low tide or peripheral terrain.

To this end, the present invention allows the installation position of the fluid boundary wall 18 to be adjusted through the conveying means, and the position adjustment of the embankment can be made possible by the fluid boundary wall 18 providing an extremely simple facility according to the present invention. .

The conveying means is a rail 42 is applied, the mounting means 29 is installed on the rail 42 to adjust the position of the fluid discharge line 14 by the movement of the mounting means (29).

Fixing means (34) of the mounting means (29) is installed on the rail, and the roller (34) is installed on the fixing means (34) to move over the rail (42), so that the rail (42) and the fixing stand (34) are coupled. The fastening means, such as the bolt 56, is provided.

The pressure hose fixing on the channel side wall is the same as that of the intake channel.

As described above, according to the present invention, the inlet and outlet of the deep channel in the intake channel and the warm drainage channel using the fluid boundary wall at the same time, the flow field provided by the fluid boundary wall serves as an antifouling flow field on the intake channel side and the stirring flow field on the hot drainage side By the simple facility, the water intake can be prevented from being occluded by contaminants on the intake side, and re-discharge of aquatic organisms collected in the surface water can be performed and deep intake can be performed. There is an effect that the water temperature in the nearby sea area is prevented from rising.

Claims (9)

A fluid discharge line 14 having nozzles 28 formed at regular intervals is installed in the surface depth zone across the water inlet 10 and the water outlet 12 for cooling, and pumped from the fluid delivery means 16. The discharged fluid is discharged from the nozzle 28 to form a fluid boundary wall 18 protruding from the surface depth zone to the water surface, and moved downwardly and upward along the fluid boundary wall while being remote from the water surface around the fluid boundary wall 18. By forming a flow field to be formed, the intake passage 10 has a depth inlet 24 to be formed below the fluid boundary wall 14, and at the same time, the antifouling flow field 20 for remotely releasing the biomass grouped in the surface water. In addition, the on-water drainage path 12 has a deep discharge outlet 26 formed below the fluid boundary wall 14, and the fluid boundary wall 14 is installed in multiple stages depending on the depth of the on-off drainage path 12. According to the depth As the deep discharge outlet 26 is deeply arranged and the flow field between the fluid boundary walls 14 becomes the stirring flow field 22 flowing in the opposite direction, the warm and deep water are stirred and discharged for each depth step. Waterway control method for waterway structure. The water inlet of claim 1, wherein the water inlet of the intake channel 10 is formed by a recirculation channel 40 that connects the channel and the remote location to induce the remote of the pollutant to be remoted by the antifouling flow field 20. The contaminants of the water flow control method of the structure with a water channel for cooling, characterized in that the discharge to the remote location along the current flow channel and the recirculation waterway (40). A fluid discharge line 14 installed in the surface depth zone across the water inlet 10 of the intake passage 10 and the warm drainage passage 12 for cooling, and a fluid conveying means 16 for transferring the fluid to the fluid discharge line 14. And the fluid boundary wall 18 formed by the fluid discharged from the fluid discharge line 14 by the fluid conveying means 16 and the flow field provided together with the formation of the fluid boundary wall 18 to the intake passage 10 side. A deep inlet 24 and a warm drainage channel of the intake passage 10 provided below the agitated flow field 22 and the fluid boundary wall 14 formed on the antifouling flow field 20 and the warm drainage channel 12 formed in the A channel control apparatus for a structure provided with a channel for cooling consisting of a deep discharge outlet 26 of 12). 4. The fluid discharge line (14) according to claim 3, wherein the fluid discharge line (14) has nozzles (28) formed at regular intervals in the pressure resistant hose to form a fluid boundary wall by fluid discharge, and is fixed to both side walls of the channel by the mounting means (29). A waterway control device for a structure in which a waterway for cooling is installed. The method of claim 4, wherein the mounting means 29 comprises a support 32 to be installed on the inner wall of the channel including a support 30 for supporting the pressure-resistant hose and a fixing table 34 is installed on the upper surface of the channel embankment. Channel control system of the structure with a channel for cooling. 4. The channel for cooling according to claim 3, wherein the fluid boundary wall (18) is formed by the release of bubbles, and a boundary jaw (38) protruding into the water surface by the bubbles is formed on the surface of the upper surface of the fluid boundary wall (18). Channel control system of the structure. The water inlet of the water inlet 10 is provided with a front of the water outlet so that the contaminants approaching the fluid boundary wall 18 are returned to a position remote from the water outlet by the flow field formed by the antifouling flow field 20. A waterway control device for a structure with a waterway for cooling, characterized in that the recirculation waterway 40 is formed to a position remote to the waterway. According to claim 3, On the water outlet port side of the warm water channel 12 is provided with a fluid discharge line is provided with a moving means to adjust the installation position of the fluid boundary wall 18 along the longitudinal direction of the hot water channel 12, The means is a structure with a water channel for cooling, characterized in that the rail 42 is installed along the side of the hot water channel 12 and the mounting means 29 of claim 5 is fixedly installed on the rail 42. Channel control device. 4. The fluid boundary wall (18) provided in the on-off drainage path (12) is arranged in multiple stages so as to form a deep discharge outlet (26) which deepens with the depth of the water, and the fluid boundary wall (18) is formed between the fluid boundary walls (18). A waterway control device for a structure with a waterway for cooling, characterized in that the stirring flow field 22 is formed according to the flow field opposite to the center.