KR20200037919A - Water treatment apparatus for cooling tower and cooling tower - Google Patents

Abstract

The present invention relates to a water treatment apparatus for a cooling tower and a cooling tower. According to an embodiment of the present invention, the water treatment apparatus, which electrolyzes cooling water having exchanged heat with air in a cooling tower, includes: a water treatment unit electrolyzing the cooling water; a water supply pipe supplying the cooling water to the water treatment unit; and a drain pipe discharging the cooling water electrolyzed by the water treatment unit. Some of the cooling water having exchanged heat with air is supplied to the water treatment unit through the water supply pipe, and the cooling water electrolyzed by the water treatment unit is discharged through the drain pipe to be joined with cooling water discharged to the outside of the cooling tower for circulation.

Description

WATER TREATMENT APPARATUS FOR COOLING TOWER AND COOLING TOWER}

The present invention relates to a water treatment device for a cooling tower and a cooling tower.

In the cooling tower, the cooling tower serves to cool the cooling water used for condensation of the refrigerant flowing through the air conditioning apparatus or the refrigerator, that is, the refrigeration cycle by contacting with air. Such a cooling tower causes the cooling water to be sprayed into the air to exchange heat with the high temperature cooling water or the flowing cooling water is brought into contact with the blown air.

Meanwhile, when the cooling water rises to a high temperature, the cooling water may be contaminated by microorganisms or chemicals, and the scale or corrosion of the pipe may be caused by the contaminated cooling water. In order to prevent this, a technique of adding a chemical to the cooling water has been proposed. However, there is an increase in cost and disadvantages that may cause secondary contamination by the chemical.

In addition, in the case of a technique for physically and / or electrically performing water treatment for cooling water, since cooling water must be circulated for water treatment separately from the circulation cycle of the cooling water, a problem arises in that the configuration of the apparatus for water treatment is complicated. In addition, since it is necessary to periodically discharge foreign substances such as salt generated in the process of water treatment, operation of the apparatus for water treatment becomes cumbersome.

Republic of Korea Registered Patent No. 185100 (Name: Cooling tower sterilizer using electrocoagulation) Republic of Korea Registered Patent No. 1689481 (Name: Filtration device for water quality improvement of cooling circulating water in cooling tower and water treatment system using the same)

The present invention is to solve the problems by the prior art as described above, the object of the present invention is to provide a water treatment device and a cooling tower for a cooling tower that is configured so that the water treatment of the cooling water in a simpler configuration.

Another object of the present invention is to provide a cooling tower water treatment device and a cooling tower that are configured to more efficiently perform water treatment of cooling water.

An aspect of the water treatment apparatus for a cooling tower according to an embodiment of the present invention for achieving the above object is in a water treatment apparatus for electrolyzing cooling water heat-exchanged with air in a cooling tower: The water treatment apparatus is water treatment for electrolyzing cooling water unit; A water supply pipe supplying cooling water to the water treatment unit; And a drainage pipe discharging cooling water electrolyzed by the water treatment unit. Including, a portion of the cooling water heat-exchanged with air is supplied to the water treatment unit by the water supply pipe, and the cooling water electrolyzed by the water treatment unit is discharged by the drain pipe to the outside of the cooling tower for circulation. It merges with the cooling water discharged.

In one aspect of the embodiment of the present invention, both ends of the water supply pipe are connected to the water collecting unit and the water treatment unit where the cooling water heat exchanged with the air is collected, and both ends of the drainage pipe are collected by the water collecting unit, and then the cooling tower It is connected to the circulation pipe and the water treatment unit through which the cooling water discharged to the outside flows.

In one aspect of the embodiment of the present invention, the water treatment unit includes: a water treatment housing through which cooling water is supplied by the water supply pipe and cooling water is discharged by the drainage pipe; And a pair of electrodes disposed inside the water treatment housing and electrolyzing cooling water supplied by the water supply pipe and flowing through the water treatment housing when power is applied. It includes.

In one aspect of the embodiment of the present invention, in the interior of the water treatment housing, cooling water flows at a relatively low speed compared to the water supply pipe and the drainage pipe.

An aspect of the embodiment of the present invention, a foreign matter discharge pipe that is branched from one side of the drain pipe and extends to the outside; A first valve that selectively opens and closes the water supply pipe; A second valve selectively opening and closing the drainage pipe; And a third valve selectively opening and closing the foreign substance discharge pipe. Further comprising, the first and second valves and the third valve, open and close the water supply pipe and the drain pipe and the foreign matter discharge pipe alternately with each other.

In one aspect of the embodiment of the present invention, the drain pipe, both sides are extended upwardly inclined with respect to one side to which the foreign matter discharge pipe is branched.

In one aspect of the embodiment of the present invention, either one of the first and second valves is opened to either of the water supply pipe and the drainage pipe so that the absolute value of the internal pressure is maintained above the predetermined absolute value of the reference pressure. And the other of the first and second valves opens or shields the other of the water supply and drain pipes.

In one aspect of the embodiment of the present invention, when the first and second valves completely open the water supply pipe and the drainage pipe, and the absolute value of the internal pressure is less than the absolute value of the reference pressure, the agent The 1st and 2nd valves shield the said water supply pipe and the drainage pipe, and the said 3rd valve opens the said foreign substance discharge pipe.

One aspect of the embodiment of the present invention further includes a flow interference member that interferes with the flow of foreign substances in the cooling water flowing therein.

One aspect of the cooling tower according to an embodiment of the present invention, a casing that is formed with an intake port through which the air heat-exchanged with the cooling water is sucked and an exhaust port through which the air heat-exchanged with the coolant is discharged; A water supply unit supplying cooling water that is heat-exchanged with the air sucked through the intake port; A blower that is sucked into the casing through the intake port and discharged to the outside of the casing through the exhaust port to form a flow of air heat-exchanged with cooling water; A filling material in which heat exchanged between the air sucked into the casing through the intake port and the cooling water supplied from the water supply unit; A collecting unit through which cooling water exchanged with air in the filling material is collected; A circulation pump including a circulation pump that pressurizes the cooling water to circulate the cooling water collected in the water collecting unit, and a circulation pipe that flows inside the cooling water that is pumped by the circulation pump and is discharged to the outside of the water collecting unit; And a water treatment device for electrolyzing and cooling water collected in the water collecting part. It includes.

In one aspect of the embodiment of the present invention, when the coolant collected in the water collecting part is pushed by the circulation pump and flows inside the circulation pipe, the internal pressure of the circulation pipe decreases, and the cooling water collected in the water collecting part A portion is supplied to the interior of the water treatment device, electrolyzed, and then discharged to the circulation pipe.

In one aspect of the embodiment of the present invention, the water treatment apparatus comprises: a water treatment unit for electrolyzing cooling water; A water supply pipe through which the coolant collected in the water collecting part flows inside and supplied to the water treatment unit; And a drain pipe through which cooling water electrolyzed by the water treatment unit flows therein and is discharged to the circulation pipe. It includes.

In one aspect of the embodiment of the present invention, both ends of the water supply pipe are respectively connected to the water collecting unit and the water treatment unit, and both ends of the drain pipe are respectively connected to the circulation pipe and the water treatment unit.

In one aspect of the embodiment of the present invention, the water treatment unit includes: a water treatment housing to which one end of the water supply pipe and the drainage pipe are respectively connected; And a pair of electrodes disposed inside the water treatment housing and receiving power to electrolyze the cooling water. Including, the cooling water supplied to the inside of the water treatment housing by flowing inside the water supply pipe is electrolyzed when the power is applied to the electrode and then flows inside the drain pipe to be discharged to the inside of the circulation pipe.

In one aspect of the embodiment of the present invention, the water treatment housing has a relatively large flow cross-sectional area compared to the water supply pipe and the drainage pipe.

In one aspect of the embodiment of the present invention, the water treatment device is branched from one side of the drain pipe and extends to the outside of the water treatment device, and the coolant remaining inside the drain pipe flows therein to electrolyze the coolant. A foreign matter discharge pipe discharged to the outside together with the foreign matter generated in the process; A first valve that selectively opens and closes the water supply pipe; A second valve selectively opening and closing the drainage pipe; And a third valve selectively opening and closing the foreign substance discharge pipe. Further comprising, when the water supply pipe and the drainage pipe are opened by the first and second valves, and the foreign matter discharge pipe is shielded by the third valve, when the circulation pump operates, the water collecting unit A portion of the cooling water collected in the flow is supplied to the water treatment unit by flowing inside the water supply pipe, and then electrolyzed by the water treatment unit to flow inside the drain pipe to be discharged into the circulation pipe, and the first And when the water supply pipe and the drainage pipe are shielded by the second valve, and the foreign matter discharge pipe is opened by the third valve, the foreign matter remaining inside the water supply pipe, the water treatment unit and the drainage pipe is cooled water and Together, it is discharged to the outside of the water treatment device through the foreign substance discharge pipe.

In one aspect of the embodiment of the present invention, the drain pipe, both sides are extended upwardly inclined with respect to one side to which the foreign matter discharge pipe is branched.

In one aspect of the embodiment of the present invention, the water treatment device further includes a pressure sensing sensor that senses internal pressure, and one of the first and second valves is the water treatment device sensed by the pressure sensing sensor. The opening degree of one of the water supply pipe and the drainage pipe is adjusted so that the absolute value of the internal pressure of the water is maintained above the absolute value of the preset reference pressure, and the other of the first and second valves is the water supply pipe and the drainage. The other end of the pipe is opened or shielded, and either one of the first and second valves is maintained so that the absolute value of the internal pressure of the water treatment device sensed by the pressure sensor is maintained above the absolute value of the preset reference pressure. By this, the opening degree of either of the water supply pipe and the drainage pipe is adjusted.

In one aspect of the embodiment of the present invention, in the state where the water supply pipe and the drainage pipe are completely opened by the first and second valves, the absolute value of the internal pressure of the water treatment device detected by the pressure sensor is When less than the absolute value of the reference pressure, the water supply pipe and the drainage pipe are shielded by the first and second valves, and the foreign substance discharge pipe is opened by the third valve.

In one aspect of the embodiment of the present invention, the water treatment device further includes a flow interference member that interferes with the flow of foreign substances in the cooling water flowing therein.

According to the water treatment device and cooling tower for a cooling tower according to an embodiment of the present invention, the following effects can be expected.

First, in the embodiment of the present invention, without using a separate pump, supply of cooling water to the water treatment device and removal of foreign matter from the water treatment device are made. Therefore, according to the embodiment of the present invention, it is possible to treat the cooling water with a simpler configuration.

In addition, in an embodiment of the present invention, by adjusting the opening degree of the valve according to the internal pressure of the water treatment device to control the flow rate of the cooling water flowing through the inside of the water treatment device or to open and close the valve, foreign substances remaining inside the water treatment device are externally Is discharged. Therefore, according to an embodiment of the present invention, it is to provide a water treatment device and a cooling tower for a cooling tower that is configured to more efficiently water treatment of cooling water.

1 is a longitudinal sectional view showing a cooling tower according to an embodiment of the present invention.
Figure 2 is a plan view showing a water treatment apparatus constituting an embodiment of the present invention.
3 and 4 is an operational state diagram showing a water treatment process in a cooling tower according to an embodiment of the present invention.

Hereinafter, a configuration of a cooling tower according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a longitudinal sectional view showing a cooling tower according to an embodiment of the present invention, and FIG. 2 is a plan view showing a water treatment device constituting an embodiment of the present invention.

Referring to FIG. 1, the cooling tower 1 according to the present embodiment includes a casing 100, a water supply part 200, a blowing part 300, a filling material 400, a water collecting part 500, and a circulation part 600. And a water treatment device 700. The casing 100 defines a predetermined space in which component parts constituting the cooling tower 1 are installed. In addition, the water supply unit 200 serves to supply cooling water as a heat exchange target. The blower 300 serves to flow air that is heat exchanged with the cooling water. The filling material 400 is a place where heat exchange between cooling water supplied from the water supply part 200 and air flowed by the blowing part 300 is made, and the collecting part 500 is provided by the filling material 400. This is where the heat exchanged coolant is collected. In addition, the circulation part 600 serves to drain the cooling water collected in the water collecting part 500, and the water treatment device 700 electrolyzes the cooling water collected in the water collecting part 500 to perform water treatment. Plays a role.

More specifically, the casing 100 is defined as an external appearance, and is formed in a predetermined shape including at least both side surfaces and an upper surface, for example, a hexahedral shape. In the casing 100, an intake port 110 and an exhaust port 120 are formed. The intake port 110 is a place where air is sucked into the casing 100, and the exhaust port 120 is a place where air is discharged to the outside of the casing 100. In this embodiment, the intake port 110 is located on both sides of the casing 100, and the exhaust port 120 is located in the center of the upper surface of the casing 100.

In addition, a fan stack 130 is provided on the upper surface of the casing 100. The fan stack 130 serves to guide air discharged through the exhaust port 120. The fan stack 130 may be formed in a polyhedron, for example, a cylindrical shape, extending upwardly by a predetermined length from the upper surface of the casing 100 and opening the upper and lower surfaces.

The water supply unit 200 includes a pair of water supply tanks 210 and nozzles 220. The water supply tank 210 is a place where cooling water to be exchanged with air is stored. And the nozzle 220 is a place where the cooling water stored in the water supply tank 210 is sprayed toward the filling material 400. In this embodiment, the water supply unit 200 is composed of a pair located on both sides of the inner casing 100 corresponding to the upper side of the intake port 110. At this time, the water supply unit 200 is positioned to be spaced apart in a horizontal direction from a projection in a vertical direction of the exhaust port 120.

Meanwhile, the blower 300 includes a blower fan 310 and a blower motor 320. The blowing fan 310 serves to flow air to the inside and outside of the casing 100. That is, when the blowing fan 310 rotates, air is sucked into the interior of the casing 100 through the intake port 110 to exchange heat with cooling water, and air exchanged with the cooling water through the exhaust port 120 It is discharged to the outside of the casing (100). As the blowing fan 310, for example, an axial flow fan may be used. The blowing motor 320 provides driving force for rotation of the blowing fan 310.

On the other hand, the filler 400 is composed of a pair located on both sides of the inner casing 100 so as to be adjacent to the intake port 110 in the horizontal direction. The filling material 400 is also positioned to be spaced apart from the projection in the vertical direction of the exhaust port 120 in the horizontal direction, similar to the water supply unit 200. Then, the cooling water sprayed from the nozzle 220 flows along the surface of the filler 400 or the space between the filler 400, and exchanges heat with contact with the air sucked through the intake port 110.

Cooling water heat-exchanged with the air is collected in the water collecting part 500 while flowing along the surface of the filling material 400. In the present embodiment, the water collecting part 500 includes a water collecting guide 510 and a water collecting tank 520. The water collecting guides 510 are located on both lower sides of the casing 100 corresponding to the lower side of the filling material 400. At this time, the water collecting guide 510 may be arranged to be inclined toward the lower center of the casing 100. In addition, the water collecting tank 520 is located between the water collecting guides 510 and in the lower center of the casing 100 corresponding to the lower portion. Therefore, the cooling water heat-exchanged with air in the filler 400 may be guided by the water collecting guide 510 and collected in the water collecting tank 520.

In addition, the circulation part 600 includes a circulation pump (not shown) and a circulation pipe 610. The circulation part 600 pressurizes the cooling water to discharge the cooling water collected in the water collecting part 500, and substantially the cooling water collected in the water collecting tank 520 to the outside. In addition, the circulation pipe 610 is a place where cooling water that is pumped by the circulation pump flows therein and is discharged to the outside of the water collecting part 500. To this end, one end of the circulation pipe 610 will be connected to one side of the water collecting tank 520.

On the other hand, in the present embodiment, when the coolant collected in the water collecting part 500 by the circulation pump is compressed and flows inside the circulation pipe 610, the internal pressure of the circulation pipe 610 decreases, A portion of the cooling water collected in the water collecting part 500 is supplied to the inside of the water treatment device 700 and electrolyzed, and then discharged to the circulation pipe 610. Referring to FIG. 2, the water treatment device 700 includes a water treatment unit 710, a water supply pipe 720, and a drainage pipe 730.

More specifically, the water treatment unit 710 serves to electrolyze and cool the cooling water. In this embodiment, the water treatment unit 710 includes a water treatment housing 711 and a pair of electrodes 712 (see FIGS. 3 and 4). The water treatment housing 711 is, for example, formed in a hollow polyhedron shape, and ends of the water supply pipe 720 and the drainage pipe 730 are respectively connected. In addition, the electrode 712 is disposed inside the water treatment housing 711 and receives power to electrolyze the cooling water. In particular, in this embodiment, the water treatment housing 711 has a relatively large flow cross-sectional area compared to the water supply pipe 720 and the drainage pipe 730. This reduces the flow rate of the cooling water in the interior of the water treatment housing 711 relative to the interior of the water supply pipe 720 and the drain pipe 730, so that the inside of the water treatment housing 711 is relatively reduced. This is to increase the time of electrolysis by the electrode 712.

And the water supply pipe 720 is a place where the cooling water collected in the water collecting part 500 flows therein and is supplied to the water treatment unit 710, and the drainage pipe 730 is the water treatment unit 710 Coolant electrolyzed by) flows therein and is discharged to the circulation pipe 610. To this end, both ends of the water supply pipe 720 are respectively connected to the water collecting unit 500 and the water treatment unit 710, and both ends of the drain pipe 730 are provided with the circulation pipe 610 and the water treatment unit 710. ).

In addition, the water treatment device 700 may further include a foreign material discharge pipe 740 and first to third valves V1 and V2. The foreign matter discharge pipe 740 is branched to the outside of the water treatment device 700 at one side of the drain pipe 730, and the cooling water remaining inside the drain pipe 730 flows therein to cool water. It is a place that is discharged to the outside along with foreign substances generated in the electrolysis process. In addition, the first to third valves V1 and V2 selectively open and close the water supply pipe 720, the drainage pipe 730, and the foreign substance discharge pipe 740, respectively. At this time, the first and second valves (V1) (V2) and the third valve (not shown), the water supply pipe 720 and the drain pipe 730 and the foreign matter discharge pipe 740 alternately with each other Open and close. In addition, although not shown, the drain pipe 730 has both sides around one side where the foreign substance discharge pipe 740 is branched to facilitate discharge of coolant and foreign substances through the foreign substance discharge pipe 740. It can be extended upwardly.

Accordingly, when the water supply pipe 720 and the drainage pipe 730 are opened by the first and second valves V1 and V2, and the foreign substance discharge pipe 740 is shielded by the third valve. In, when the circulation pump is operated, a part of the cooling water collected in the water collecting part 500 flows through the inside of the water supply pipe 720 and is supplied to the water treatment unit 710, and then to the water treatment unit 710. By electrolysis, the inside of the drain pipe 730 flows and is discharged to the inside of the circulation pipe 610. Conversely, when the water supply pipe 720 and the drainage pipe 730 are shielded by the first and second valves V1 and V2, and the foreign substance discharge pipe 740 is opened by the third valve In, the foreign substances remaining inside the water supply pipe 720, the water treatment unit 710, and the drainage pipe 730 are discharged to the outside of the water treatment apparatus 700 through the foreign substance discharge pipe 740 together with cooling water. .

In addition, in the present embodiment, the water treatment device 700 further includes a pressure sensor P for detecting the internal pressure of the water treatment device 700. And one of the first and second valves (V1) (V2), the absolute value of the internal pressure of the water treatment device 700 sensed by the pressure sensor P is greater than the absolute value of the preset reference pressure The opening degree of one of the water supply pipe 720 and the drainage pipe 730 is adjusted so as to be maintained, and the other of the first and second valves V1 and V2 is the water supply pipe 720 and drainage. The other of the pipes 730 is opened or shielded. For example, the first valve (V1), while opening and closing the water supply pipe 720 and at the same time to adjust the opening degree of the water supply pipe 720, the second valve (V2), the drain pipe (730) ) Can only be opened and closed. In this embodiment, the first and second valves (V1) so that the absolute value of the internal pressure of the water treatment device 700 sensed by the pressure sensor P is maintained above the absolute value of the preset reference pressure. The opening degree of either of the water supply pipe 720 and the drainage pipe 730 is adjusted by any one of (V2).

Here, the 'reference pressure' means the internal pressure of the water treatment device 700 sensed by the pressure sensor P when the coolant at a pre-designed flow rate flows through the water treatment device 700. In other words, in this embodiment, one of the first and second valves (V1) (V2) according to the internal pressure of the water treatment device 700 sensed by the pressure sensor (P) is one of the water supply pipe ( 720) and by adjusting the opening degree of either one of the drain pipe 730, to substantially control the flow rate of the cooling water flowing inside the water treatment device 700. However, in the present embodiment, the cooling water is not forcibly pumped into the water treatment device 700 by a pump (not shown) or the like, but the circulation in the process of cooling water flowing inside the circulation pipe 610 Cooling water collected in the water collecting tank 520 due to a pressure difference between the water collecting tank 520 and the circulation pipe 610 according to a decrease in the internal pressure of the pipe 610 flows through the water treatment apparatus 700 to It is discharged to the circulation pipe 610. Therefore, in this embodiment, when the absolute value of the internal pressure of the water treatment device 700 falls below the absolute value of the reference pressure, the opening of either of the first and second valves V1 and V2 is determined. Increase. Conversely, when the internal pressure of the water treatment device 700 is increased above the reference pressure, the opening degree of either of the first and second valves V1 and V2 is reduced.

In addition, in the present embodiment, in the state in which the water supply pipe 720 and the drainage pipe 730 are completely opened by the first and second valves V1 and V2, the pressure sensing sensor P When the absolute value of the internal pressure of the water treatment device 700 sensed by is less than the absolute value of the reference pressure, the flow of cooling water from the water collecting tank 520 to the water treatment device 700 is blocked, and the water treatment device Cooling water remaining in the interior of the 700 is discharged through the foreign matter discharge pipe 740 together with foreign matter. In other words, in the state where the water supply pipe 720 and the drainage pipe 730 are completely opened by the first and second valves V1 and V2, the pressure sensed by the pressure sensor P When the absolute value of the internal pressure of the water treatment device 700 is less than the absolute value of the reference pressure, the water supply pipe 720 and the drainage pipe 730 by the first and second valves V1 and V2 are Shielded, the foreign matter discharge pipe 740 is opened by the third valve.

The water treatment device 700 may further include a flow interference member 750. The flow interference member 750 serves to interfere with the flow of foreign substances in the cooling water flowing inside the water treatment device 700. For example, the flow interference member 750 extends the inside of the drainage pipe 730 at an inclined angle at a predetermined angle with respect to a direction in which cooling water flows from the inner peripheral surface of the drainage pipe 730, thereby substantially draining the drainage. A portion of the interior space of the pipe 730 may be shielded. Therefore, a relatively large foreign material may interfere with the flow interference member 750 while flowing inside the drain pipe 730 together with cooling water.

Hereinafter, the operation of the cooling tower according to the embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

3 and 4 is an operational state diagram showing a water treatment process in a cooling tower according to an embodiment of the present invention.

First, looking at the heat exchange process of the cooling water in the cooling tower 1, when the blowing fan 310 is rotated by the blowing motor 320, the air sucked into the casing 100 through the intake port 110 is a filling material ( 400). And the air that has passed through the filling material 400 by continuous rotation of the blowing fan 310 is discharged to the outside of the casing 100 through the exhaust port 120.

Meanwhile. When the cooling water stored in the water supply part 200 and the water supply tank 210 is sprayed through the nozzle 220, the heat exchange is made by contacting the air sucked through the intake port 110 while passing through the filling material 400. In addition, the cooling water heat-exchanged with the air in the filler 400 is collected in the water collecting part 500. Practically, the air heat-exchanged with the air in the filler 400 is guided by the water collecting guide 510 and is collected in the water collecting tank 520.

Next, the cooling water collected in the water collecting tank 520 circulates between the cooling tower 1 and other facilities. That is, when the circulation pump pressurizes the cooling water collected in the water collecting tank 520, it is discharged to the outside of the cooling tower 1 through the circulation pipe 610, flows through other facilities, etc., and then supplies the water supply unit 200 again. Is supplied with.

Referring to FIG. 3, the water supply pipe 720 and the drainage pipe 730 are opened by the first and second valves V1 and V2, and the foreign material discharge pipe 740 is shielded by the third valve. In, when the circulation pump is operated, the cooling water collected by the circulation pump to the water collecting part 500 is pushed to flow inside the circulation pipe 610, the internal pressure of the circulation pipe 610 decreases do. By the way, inside the water treatment device 700, since atmospheric pressure is substantially applied, cooling water collected in the water collection tank 520 is supplied to the water treatment unit 710 through the water supply pipe 720, and the water treatment unit ( It is discharged from the 710 to the circulation pipe 610 through the drain pipe 730. Then, the cooling water flowing inside the water treatment unit 710 is electrolyzed when power is applied to the electrode 712.

On the other hand, in the present embodiment, the internal pressure of the water treatment device 700 sensed by the pressure sensing sensor P maintains a reference pressure, that is, a pressure when cooling water of a pre-designed flow rate flows through the water treatment device 700. The opening degree of either one of the first and second valves V1 and V2 is adjusted to do so. Therefore, in this embodiment, the cooling water at a pre-designed flow rate flows through the interior of the water treatment device 700, so that efficient water treatment according to sufficient electrolysis can be achieved.

Next, referring to FIG. 4, foreign substances generated in the electrolysis process of the cooling water in the water treatment unit 710 may remain inside the water treatment apparatus 700, in particular, inside the drainage pipe 730. have. Particularly, in the present embodiment, the flow of the foreign matter is interfered with the flow interference member 750, so that the amount of foreign matter remaining inside the drain pipe 730 will be further increased. Therefore, when the amount of foreign matter remaining inside the drain pipe 730 is increased, the flow of cooling water is thereby obstructed, thereby substantially increasing the internal pressure of the water treatment device 700.

In the present embodiment, even when the water supply pipe 720 and the drainage pipe 730 are completely opened by the first and second valves V1 and V2, they are detected by the pressure sensor P When the internal pressure of the water treatment device 700 exceeds the reference pressure, the first and second valves V1 and V2 shield the water supply pipe 720 and the drainage pipe 730, The third valve opens the foreign material discharge pipe 740. Therefore, foreign substances remaining inside the water treatment apparatus 700 may be discharged to the outside of the water treatment apparatus 700 through the foreign substance discharge pipe 740 together with cooling water.

Many other modifications are possible to those skilled in the art within the scope of the basic technical idea of the present invention, and of course, the scope of the present invention should be interpreted based on the appended claims. .

In FIG. 1, the cross flow type of the cooling tower is described as an example, but it will be apparent that the present invention is applicable to the counter flow type. Further, in the present embodiment, the flow interference member is limited to extend from the inner peripheral surface of the drain pipe, but a filter mounted inside the drain pipe may be used as the flow interference member.

1: cooling tower 100: casing
110: intake port 200: water supply
300: blower 400: filling material
500: water collecting part 600: circulation part
700: water treatment device 710: water treatment unit
720: water supply pipe 730: drainage pipe
740: foreign matter discharge pipe 750: no flow interference
V1: Valve P: Pressure sensor

Claims (20)

In the water treatment device 700 for electrolyzing cooling water heat-exchanged with air in the cooling tower 1:
The water treatment device 700,
A water treatment unit 710 for electrolyzing cooling water;
A water supply pipe 720 for supplying cooling water to the water treatment unit 710; And
A drain pipe 730 that discharges cooling water electrolyzed by the water treatment unit 710; Including,
A part of the cooling water exchanged with air is supplied to the water treatment unit 710 by the water supply pipe 720,
The cooling water electrolyzed by the water treatment unit 710 is a water treatment device for a cooling tower that is discharged by the drain pipe 730 and confluences with cooling water discharged to the outside of the cooling tower 1 for circulation.
According to claim 1,
Both ends of the water supply pipe 720 are connected to the water collection unit 500 and the water treatment unit 710 where the cooling water exchanged with the air is collected,
Both ends of the drain pipe 730 are connected to the circulation pipe 610 and the water treatment unit 710 through which the cooling water discharged to the outside of the cooling tower 1 after circulating is collected in the water collecting part 500 to flow. Water treatment device for cooling tower.
According to claim 2,
The water treatment unit 710,
A water treatment housing 711 through which cooling water is supplied by the water supply pipe 720 and cooling water is discharged by the drainage pipe 730; And
A pair of electrodes 712 disposed inside the water treatment housing 711 and electrolyzing the cooling water supplied by the water supply pipe 720 and flowing through the water treatment housing 711 when power is applied; Water treatment device for a cooling tower comprising a.
The method of claim 3,
Inside the water treatment housing 711, the water treatment device for a cooling tower in which cooling water flows at a relatively low speed compared to the water supply pipe 720 and the drain pipe 730.
The method according to any one of claims 1 to 4,
A foreign material discharge pipe 740 branched from one side of the drain pipe 730 and extended to the outside;
A first valve (V1) for selectively opening and closing the water supply pipe (720);
A second valve (V2) for selectively opening and closing the drain pipe (730); And
A third valve selectively opening and closing the foreign substance discharge pipe 740; Further comprising,
The first and second valves (V1) (V2) and the third valve, the water treatment device for a cooling tower that opens and closes the water supply pipe 720 and the drainage pipe 730 and the foreign matter discharge pipe 740 alternately with each other .
The method of claim 5,
The drain pipe 730 is a water treatment device for a cooling tower in which both sides extend upwardly inclined around one side where the foreign substance discharge pipe 740 is branched.
The method of claim 5,
One of the first and second valves (V1) (V2), any one of the water supply pipe 720 and the drainage pipe 730 such that the absolute value of the internal pressure is maintained above the absolute value of the predetermined reference pressure Adjust the opening degree of one side,
The other of the first and second valves (V1) (V2), the water treatment device for a cooling tower to open or shield the other of the water supply pipe 720 and the drain pipe (730).
The method of claim 7,
When the first and second valves V1 and V2 completely open the water supply pipe 720 and the drainage pipe 730, when the absolute value of the internal pressure is less than the absolute value of the reference pressure , The first and second valves (V1) (V2) shields the water supply pipe 720 and the drain pipe 730, the third valve is a water treatment device for a cooling tower that opens the foreign matter discharge pipe 740 .
The method of claim 7,
A water treatment device for a cooling tower further comprising a flow interference member 750 that interferes with the flow of foreign substances in the cooling water flowing therein.
A casing 100 in which an intake port 110 through which air exchanged with the cooling water is sucked in and an exhaust port 120 through which air exchanged with the coolant is discharged are formed;
A water supply unit 200 supplying cooling water that is heat-exchanged with the air sucked through the intake port 110;
A blower 300 suctioned into the casing 100 through the intake port 110 and discharged to the outside of the casing 100 through the exhaust port 120 to form a flow of air heat exchanged with cooling water;
A filling material 400 in which heat exchanged between the air sucked into the casing 100 and the cooling water supplied from the water supply part 200 through the intake port 110;
A collecting unit 500 in which cooling water exchanged with air in the filling material 400 is collected;
A circulation pump that pressurizes the cooling water for circulation of the cooling water collected in the water collecting part 500, and a circulation pipe through which the cooling water pumped by the circulation pump flows inside and discharged to the outside of the water collecting part 500 ( 610, including a circulation unit 600; And
A water treatment device 700 that electrolyzes and cools the cooling water collected in the water collecting part 500; Cooling tower comprising a.
The method of claim 10,
When the coolant collected in the water collecting part 500 by the circulation pump is compressed and flows inside the circulation pipe 610, the internal pressure of the circulation pipe 610 decreases to collect water in the water collecting part 500 Cooling tower is discharged to the circulation pipe 610 after a portion of the cooled water is supplied to the interior of the water treatment device 700 and electrolyzed.
The method of claim 10 or 11,
The water treatment device 700,
A water treatment unit 710 for electrolyzing cooling water;
A water supply pipe 720 supplied to the water treatment unit 710 by flowing the cooling water collected in the water collecting part 500 therein; And
A drain pipe 730 through which cooling water electrolyzed by the water treatment unit 710 flows inside and discharged to the circulation pipe 610; Cooling tower comprising a.
The method of claim 12,
Both ends of the water supply pipe 720 are respectively connected to the water collecting unit 500 and the water treatment unit 710,
Both ends of the drain pipe 730, the cooling tower is connected to the circulation pipe 610 and the water treatment unit 710, respectively.
The method of claim 12,
The water treatment unit 710,
A water treatment housing 711 to which one end of the water supply pipe 720 and the drainage pipe 730 are respectively connected; And
A pair of electrodes 712 disposed inside the water treatment housing 711 and receiving power and electrolyzing cooling water; Including,
When the coolant supplied to the inside of the water treatment housing 711 by flowing inside the water supply pipe 720 is supplied with power to the electrode 712, it is electrolyzed and then flows through the inside of the drainage pipe 730. Cooling tower discharged to the interior of the circulation pipe (610).
The method of claim 14,
The water treatment housing 711, the cooling tower having a relatively large flow cross-sectional area compared to the water supply pipe 720 and the drain pipe (730).
The method of claim 12,
The water treatment device 700,
Foreign matter generated in the electrolysis process of cooling water by branching at one side of the drain pipe 730 and extending to the outside of the water treatment device 700, and the cooling water remaining inside the drain pipe 730 flows therein. Foreign matter discharge pipe 740 discharged to the outside with;
A first valve (V1) for selectively opening and closing the water supply pipe (720);
A second valve (V2) for selectively opening and closing the drain pipe (730); And
A third valve selectively opening and closing the foreign substance discharge pipe 740; Further comprising,
When the water supply pipe 720 and the drainage pipe 730 are opened by the first and second valves V1 and V2, and the foreign substance discharge pipe 740 is shielded by the third valve, When the circulation pump is operated, a portion of the cooling water collected in the water collecting part 500 flows through the inside of the water supply pipe 720 and is supplied to the water treatment unit 710, and then electricity is generated by the water treatment unit 710. Disassembled to flow inside the drain pipe 730 and discharged to the inside of the circulation pipe 610,
When the water supply pipe 720 and the drainage pipe 730 are shielded by the first and second valves V1 and V2, and the foreign substance discharge pipe 740 is opened by the third valve, A cooling tower in which foreign substances remaining in the water supply pipe 720, the water treatment unit 710, and the drain pipe 730 are discharged to the outside of the water treatment device 700 through the foreign substance discharge pipe 740 together with cooling water.
The method of claim 16,
The drain pipe 730 is a cooling tower that extends obliquely upward on both sides around one side where the foreign substance discharge pipe 740 is branched.
The method of claim 16,
The water treatment device 700 further includes a pressure sensing sensor P for detecting internal pressure,
Either of the first and second valves (V1) (V2), the absolute value of the internal pressure of the water treatment device 700 sensed by the pressure sensor P is greater than or equal to a predetermined reference pressure incision value Adjust the opening degree of either one of the water supply pipe 720 and the drainage pipe 730 so as to be maintained,
The other of the first and second valves V1 and V2 opens or shields the other of the water supply pipe 720 and the drainage pipe 730,
Any one of the first and second valves (V1) (V2) so that the absolute value of the internal pressure of the water treatment device 700 sensed by the pressure sensor P is maintained above the predetermined absolute value of the reference pressure. A cooling tower in which the opening degree of one of the water supply pipe 720 and the drainage pipe 730 is adjusted by one side.
The method of claim 18,
The water treatment device detected by the pressure sensor P in the state in which the water supply pipe 720 and the drainage pipe 730 are completely opened by the first and second valves V1 and V2 ( If the absolute value of the internal pressure of 700) is less than the absolute value of the reference pressure,
The cooling tower in which the water supply pipe 720 and the drainage pipe 730 are shielded by the first and second valves V1 and V2, and the foreign substance discharge pipe 740 is opened by the third valve.
The method of claim 19,
The water treatment device 700, the cooling tower further comprises a flow interference member 750 to interfere with the flow of foreign matter in the cooling water flowing therein.

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