KR20190058398A - Cooling towers including middle tank - Google Patents

Abstract

The present invention relates to a cooling tower having an intermediate water tank. The cooling tower includes a plurality of intermediate water tanks on a flow passage where cooling water flows from an upper water tank to a lower water tank to redistribute cooling water with saturated heat exchange through the intermediate water tanks to improve cooling efficiency of air flowing into a filling material. The cooling tower includes: a first to a third filling material stacked on top of each other in multiple layers between the upper water tank and the lower water tank; and a first and a second intermediate water tank installed between the filling materials. The first and the second intermediate water tank differently adjust a supply amount of cooling water towards an area where air entering from an area where outside air enters is discharged through the filling materials between the upper water tank and the lower water tank or uniformly mixes the temperature of stored cooling water to supply the cooling water to a lower filling material. According to the present invention, cooling water with saturated heat exchange in different areas of filling materials is mixed or redistributed to supply the cooling water to the filling materials to improve cooling efficiency of the cooling tower.

Description

[0001] COOLING TOWERS INCLUDING MIDDLE TANK [0002]

The present invention relates to a cooling tower, and more particularly, to a cooling tower in which a plurality of intermediate water tanks are provided on a flow path of cooling water from an upper water tank to a lower water tank to improve cooling efficiency of air introduced into a filler, To the cooling tower through the intermediate water tank.

The cooling tower is a relatively simple-function heat exchanger that is used as cooling water to cool the heated water to air for reuse. It is a water conservation device that recovers 99% of the cooling water by utilizing the latent heat of evaporation of water and is an environmental resource protection device which prevents the temperature rise of the river. In the air conditioning system, the indoor heat load is finally discharged from the cooling tower to the atmosphere through the central air conditioner, the cold water pump line, the freezer, and the cooling water pump line. The performance of the cooling tower heat discharge function is directly connected to the energy consumption of all the air conditioning equipment in the heat load flow, and can be regarded as the maximum energy saving device.

In general, the cooling tower is a device for cooling the indoor air of the centralized cooling system, that is, the indoor air conditioner, and lowering the temperature of the high-temperature cooling water. The cooling tower is mainly composed of an open type and a closed type cooling water which lowers the temperature of the cooling water by heat transfer, Evaporation of evaporated water sprayed on the surface of the cooling water.

Among these, the open cooling tower is divided into a counter flow type cooling tower, a cross flow type cooling tower, and a non-power cooling tower.

The counterflow type cooling tower flows through the intake port opened at the lower end of the side wall, and the outside air passing upward through the filler and the cooling water injected from the injection nozzle disposed above the filler material and falling through the filler material by gravity are opposed to each other, The cooling water is cooled by the heat transfer generated when the outside air is in contact with the cooling water which is relatively high temperature.

In addition, the orthogonal flow type cooling tower flows through the inlet port opened to the side wall, and the outside air horizontally passing through the filler material and the cooling water injected from the injection nozzle disposed above the filler material and falling through the filler material by gravity are orthogonal to each other, The cooling water is cooled by the heat transfer generated when the outside air is in contact with the cooling water which is relatively high temperature.

In the counterflow type cooling tower, air flows vertically upward, cooling water flows vertically downward, and air and cooling water contact each other to perform heat exchange. In the crossflow type cooling tower, air flows horizontally and cooling water flows vertically downward.

However, in the conventional orthogonal flow type cooling tower, the temperature of the cooling water flowing from the upper water tank to the lower water tank rises from the front surface where the air is introduced to the rear surface, that is, the inside of the cooling tower, There is a problem that the efficiency is lowered.

Korean Registered Patent No. 10-1093811 (Published on Dec. 19, 2011) Korean Registered Patent No. 10-1121174 (Notification date March 16, 2012) Korean Registered Patent No. 10-1203323 (Published on November 20, 2012) Korean Patent Registration No. 10-1627775 (Publication date 2016.06.07.

The cooling tower having the intermediate water tank according to the present invention has the following problems.

First, the cooling tower according to the present invention is characterized in that a plurality of packing materials are stacked in multiple stages in order to improve the cooling efficiency on the passage through which the cooling water flows between the upper water tank and the lower water tank, and a plurality of And an intermediate water tank.

Second, the cooling tower according to the present invention differentiates the supply amount of the cooling water supplied from the intermediate water tank to the filling material by the area of the filling material in order to supply a smaller amount of cooling water to the filling material area where the cooling efficiency is lowered, .

Third, the cooling tower according to the present invention controls the temperature of the cooling water stored in the intermediate water tank to supply cooling water of uniform temperature to the filling material regardless of the region of the filling material.

The solution of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above objects, the cooling tower of the present invention is characterized in that a plurality of intermediate water tanks are provided on the flow path from the upper water tank to the lower water tank for cooling water, and the cooling water saturated with heat exchange is redistributed through the intermediate water tank . The cooling tower of the present invention includes a plurality of intermediate water tanks to redistribute the cooling water saturated with heat exchange and supply the cooling water to the filling material so that the cooling water uniformly flows to the cooling water of the filling material irrespective of the region where the outside air is introduced, The cooling efficiency can be improved.

According to another aspect of the present invention, there is provided a cooling tower comprising: a housing having openings at both sides thereof for introducing air from the outside; A blowing fan installed at the upper center of the housing and discharging the introduced air to the outside; An upper water tank installed inside the housing to store cooling water supplied from the outside; A plurality of fillers installed in the lower portion of the upper tank so as to be stacked and cooling the cooling water flowing in from the upper tank through the air introduced from the outside; A lower water tank installed in the lower portion of the housing for collecting cooling water supplied from the upper water tank through the filling material; And at least one between the upper water tank and the lower water tank is installed between the fillers to collect and store the cooling water supplied from the upper filler among the fillers and to redistribute the stored coolant water to the lower filler among the fillers At least one intermediate water tank.

In one embodiment of this aspect, the filling material is installed in multiple stages on both sides of the housing opposite to both sides of the blowing fan; The intermediate water tank is installed between the upper filler and the lower filler in each of the fillers.

In another embodiment, each of the fillers is provided with first to third fillers stacked in multiple stages; The intermediate water tank includes a first intermediate water tank installed between the first and second fillers, and a second intermediate water tank installed between the second and third fillers.

In another embodiment, the intermediate water tank comprises: And a plurality of supply holes for supplying a smaller amount of cooling water to a second region where air is discharged from the filler material than a first region through which the air of the filler material flows into the lower surface.

In another embodiment, the intermediate water tank comprises: And the arrangement density of the supply holes is slimly arranged from the first region to the second region.

In another embodiment, the intermediate water tank comprises: And the diameters of the supply holes gradually decrease from the first region to the second region.

In another embodiment, the intermediate water tank is further provided with a cooling water mixing device for uniformly controlling the temperature of the cooling water by mixing the stored cooling water.

According to another aspect of the present invention, there is provided a cooling tower comprising: a housing having openings at both sides thereof for introducing air from the outside; A blowing fan installed at the upper center of the housing and discharging the introduced air to the outside; An upper water tank installed inside the housing to store cooling water supplied from the outside; First and second fillers which are stacked in a multi-stage manner in the lower portion of the upper water tank and cool the cooling water introduced from the upper water tank through air introduced from the outside; A lower water tank installed in the lower portion of the housing to collect cooling water supplied from the upper water tank via the first and second fillers; And between the first and second fillers of the first and second fillers between the upper tank and the lower tank, between the second filler and the third filler, And first and second intermediate water tanks for collecting and storing the cooling water supplied from each of the second fillers and redistributing the stored cooling water to each of the second and third fillers.

In one embodiment of this aspect, each of the first and second intermediate water tanks comprises: The lower surface of which is supplied with a smaller amount of cooling water from a second region through which air is discharged from the second or the third filler than a first region through which the air of the second or the third filler is introduced, Holes.

In another embodiment, each of the first and second intermediate water tanks comprises: And the arrangement density of the supply holes is slimly arranged from the first region to the second region.

In another embodiment, each of the first and second intermediate water tanks comprises: And the diameters of the supply holes gradually decrease from the first region to the second region.

In another embodiment, each of the first and second intermediate water tanks comprises: And a cooling water mixing device for uniformly controlling the temperature of the cooling water by mixing the stored cooling water.

The cooling tower having the intermediate water tank according to the present invention has the following effects.

First, the cooling tower of the present invention includes a plurality of intermediate water tanks, and redistribution of the cooling water saturated with heat exchange is performed to supply the cooling water to the filling material, thereby improving the cooling efficiency.

Second, in the cooling tower of the present invention, a plurality of supply holes are formed on the bottom surface of the intermediate water tank so that a smaller amount of cooling water is supplied to the second region where air is discharged from the filler than the first region, The temperature of the cooling water can be lowered regardless of the position of the filler.

Third, the cooling tower of the present invention circulates and mixes the cooling water stored in the intermediate water tank and supplies the cooling water to the filling material, so that the cooling water of uniform temperature can be supplied to the filling material to improve the cooling efficiency.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a perspective view showing the construction of a cooling tower according to the present invention,
2 is a plan view of the cooling tower shown in Fig. 1,
Fig. 3 is a side view of the cooling tower shown in Fig. 1,
4 is a cross-sectional view taken along line AA 'of the cooling tower shown in FIG. 2,
FIG. 5 is a perspective view showing a part of a structure in which a plurality of intermediate water tanks are provided between an upper water tank and a lower water tank of the cooling tower shown in FIG. 4;
6 is a view for explaining a cooling system of the prior art and the present invention, and Fig.
7 to 9 are views showing the structure of the lower surface according to the embodiment of the intermediate water tank shown in Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Wherever possible, the same or similar parts are denoted using the same reference numerals in the drawings.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto.

Means that a particular feature, region, integer, step, operation, element and / or component is specified and that other specific features, regions, integers, steps, operations, elements, components, and / It does not exclude the existence or addition of a group.

All terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

In order to improve the cooling efficiency, the cooling tower according to the present invention includes a plurality of filling materials and a plurality of intermediate water tanks in a multi-stage between an upper water tank and a lower water tank in which cooling water is stored, and a cooling water flowing from the upper water tank to the lower water tank The temperature of the cooling water is regulated by mixing the cooling water saturated with heat exchange in each of the intermediate water tanks in the multi-stages, and the temperature-regulated cooling water is redistributed into the filler and re-cooled to the introduced air.

To this end, the cooling tower of the present invention comprises an upper water tank for storing cooling water supplied from the outside, a plurality of fillers for cooling at least two of the cooling water supplied from the upper water tank through air introduced from the outside, At least one of which is installed between the upper and lower water tanks so as to collect the cooling water supplied from the upper water tank and circulate the cooling water so that the temperature of the cooling water is adjusted And at least one intermediate water tank for redistributing the circulated cooling water to the filling material and supplying the cooling water to the filling material so that the cooled cooling water is stored in the lower water tank.

Hereinafter, the structure and function of the cooling tower of the present invention will be described in detail with reference to the drawings. The technical features of the present invention will be described in detail by using the structure and function of the orthogonal flow type cooling tower in the embodiment of the present invention. However, the present invention is not limited to the above embodiments, But also various changes and modifications are possible.

Fig. 1 is a perspective view showing the construction of a cooling tower according to the present invention, Fig. 2 is a plan view of the cooling tower shown in Fig. 1, Fig. 3 is a side view of the cooling tower shown in Fig. Sectional view of the cooling tower taken along the line AA '.

1 to 3, a cooling tower 100 according to the present invention includes a plurality of fillers 120 and 122 stacked in a multi-stage manner between an upper water tank 110 and a lower water tank 112, And a plurality of intermediate water tanks 114 and 116 installed between the stacked fillers 120 and 122 to extend the supply path of the cooling water supplied from the upper water tank 110 to the lower water tank 112 , And the multi-stage intermediate water tanks (114, 116) mix the saturated cooling water with the heat exchange so as to re-cool through the introduced air.

The cooling tower 100 according to the present invention is installed in, for example, a roof of a building or a peripheral space of a building, and is used for cooling in an indoor unit (not shown) of a centralized cooling system of a building. The temperature of the cooling water is lowered by the contact.

To this end, the cooling tower 100 of the present invention includes a housing 102, a blowing fan 104, water tanks 110 to 116, and a plurality of fillers 120 and 122. Although the cooling tower 100 of the present invention is not shown in the drawings, it is possible to use a typical cooling tower configuration, for example, a scattering prevention plate for preventing scattering of water droplets from the cooling water into the blowing fan 104, And a spray nozzle for supplying cooling water to the nozzle 110.

The housing 102 is a case in which the components of the cooling tower 100 are accommodated or installed and fixed to the floor of the installation place, and may be provided, for example, in a rectangular parallelepiped shape or a cylindrical shape. The housing 102 is provided so that a part of both opposite sides thereof is opened to allow the outside air to flow into the fillers 120 and 122. An air blowing fan 104 is installed at an upper portion of the housing 102 to discharge the air introduced into the fillers 120 and 122 to the outside through the blowing fan 104. The housing 102 is provided with fillers 120 and 122 on both sides of a central portion thereof which is configured to flow the introduced outside air toward the blowing fan 104.

The housing 102 has a cooling water supply port provided at an upper portion of one side and connected to an external cooling water supply pipe (not shown) to supply cooling water to the upper water tank 110, A cooling water discharge port for discharging the cooling water to an external cooling water discharge line (not shown) is provided. Between the cooling water discharge port and the cooling water supply port, there are provided devices for supplying, circulating and discharging cooling water, such as a pump and a freezer, through which the cooling water is circulated from the cooling water discharge port to the cooling water supply port.

The air blowing fan 104 is provided, for example, with an axial flow fan in which the direction of air flow is parallel to the rotation axis, and a centrifugal fan that discharges the air in the circumferential direction by the centrifugal force in accordance with the rotation of the blades, So that air is discharged to the upper portion of the housing 102. The blowing fan 104 may be made of, for example, fiber reinforced plastic (FRP) or aluminum (AL) blades, and may be provided with a high efficiency and low noise fan of about 80%.

The fillers (or fillers) 120 and 122 are disposed on both sides of a portion of the housing 102 that are open. Fillers 120 and 122 introduce outside air through the open portion of the housing 102. The fillers 120 and 122 introduce the cooling water from the upper water tank 110 and bring the introduced outside air into contact with each other to cool the cooling water. The fillers 120 and 122 are provided in a plurality of plate shapes using, for example, a PVC material, a metal material, or the like, thereby forming a wide surface area. Fillers 120 and 122 require cooling air to make a thin film on the surface and heat exchange in contact with air while flowing down, improving heat transfer rate per unit volume and low air resistance. A plurality of the fillers 120 and 122 are laminated on one side and the other side of the housing 102 in a multi-stage structure.

The upper water tank 110 is installed inside the housing 102 to store cooling water supplied through the cooling water supply port 106. The upper water tank 110 is provided on both sides of the housing 102 in correspondence with the fillers 120 and 122, respectively. Each of the upper water tanks 110 is connected to the lower surface of the filler 120a and supplies the stored coolant to the lower filler 120a. Of course, the upper water tank 110 may be provided as one unit to supply the cooling water to the fillers 120 and 122 on both sides.

The intermediate water tanks 114 and 116 are provided between the upper water tank 110 and the lower water tank 112 and between at least one of the fillers 120a to 120c. Each of the intermediate water tanks 114 and 116 collects and stores the cooling water supplied from the upper filler 120a or 120b and supplies the stored cooling water to the lower filler 120b or 120c. The intermediate water tanks 120 and 122 can improve the cooling efficiency of the cooling tower 100 by circulating and mixing the cooling water saturated with heat exchange by the outside air and redistributing the cooling water into the filling material at the next stage.

The lower water tank 112 is installed at a lower portion of the housing 102 corresponding to the upper water tank 110. The lower water tank 112 collects the cooling water flowing through the fillers 120 and 122 from the upper water tank 110. The lower water tank 112 discharges the collected cooling water through the cooling water discharge port 108 to the outside.

The standard design conditions of the cooling tower 100 are that the cooling water inflow temperature is about 37 ° C, the cooling water discharge temperature is about 32 ° C, and the discharge air wet bulb temperature is about 27 ° C.

Specifically, the structure and function for improving the cooling water efficiency of the cooling tower according to the present invention will be described in detail

FIG. 5 is a perspective view showing a part of a structure in which a plurality of intermediate water tanks are provided between an upper water tank and a lower water tank of the cooling tower shown in FIG. 4, and FIG. 6 is a view for explaining a conventional method and a cooling method of the present invention.

5 and 6, a cooling tower 100 according to the present invention includes a plurality of fillers 120 (120a to 120c, 122: 122a to 122c) stacked in a multi-stage manner on both sides of a center portion of a housing 102 . The fillers 120 (120a to 120c, 122: 122a to 122c) are disposed between the upper water tank 110 and the lower water tank 112. Each of the upper water tanks 110 provided at both sides is provided with cooling water supply ports 106a and 106b connected to the cooling water supply port 106 to receive the cooling water. The intermediate water tanks 114 and 116 are provided between at least one of the fillers 120a to 120c and 122a to 122c. The lower water tank 112 may be provided on both sides corresponding to the upper water tank 110. As shown in FIG. 5, one may be provided to collect and store the cooling water supplied from the upper water tanks 110 on both sides .

In this embodiment, each of the fillers 120 and 122 is stacked with three fillers 120a to 120c and 122a to 122c. That is, the fillers 120 and 122 include the first fillers 120a and 122a, the second fillers 120b and 122b, and the third fillers 120c and 122c, Two fillers 120 and 122 are provided.

Specifically, a first intermediate water tank 114 is provided between the first fillers 120a and 122a and the second fillers 120b and 122b and a second intermediate filler 120b is provided between the second fillers 120b and 122b and between the third fillers 120c and 122c A second intermediate water tank 116 is installed.

Each of the first to third fillers 120a to 120c and 122a to 122c receives cooling water from the upper water tank 110, the first intermediate water tank 114 or the second intermediate water tank 116. [ Each of the first to third fillers 120a to 120c and 122a to 122c flows outside air from one side.

Each of the first and second intermediate water tanks 114 and 116 may be filled with fillers 120b to 120c and 122b according to the cooling efficiency of the lower fillers 120b to 120c and 122b to 122c among the stacked fillers 120 and 122. [ And 122c, respectively.

7A) in which air is introduced, a third region (C in FIG. 7) in which air is discharged, a first region A and a second region And a third region located in the middle between the second regions C (Fig. 7B).

This is because the temperature of the cooling water cooled by the air introduced from each of the fillers 120a to 120c and 122a to 122c becomes higher as it goes from the first region to the third region in the existing cooling tower as shown in Figure 6 (a) So that the cooling efficiency of the cooling water is lowered. Here, the conventional cooling tower is provided with one filling material 30 between the upper water tank 10 and the lower water tank 20, and further cooling is not required in the first area by air introduced into the filling material 30, Since the cooling water is saturated with heat exchange toward the area, the cooling water temperature is close to the surrounding wet bulb temperature, and the cooling efficiency is lowered.

Therefore, as shown in FIG. 6 (b), the first intermediate water tank 114 prevents the cooling efficiency of air and cooling water introduced from the first region A from being lowered toward the third region C The cooling water supplied from the upper water tank 110 is stored and the stored cooling water is supplied to the fillers 120b and 122b at the lower end by differentiating the supplied amount for each of the first to third regions A to C. The second intermediate water tank 116 stores the cooling water supplied from the first intermediate water tank 114 and differentiates the supply amount of the stored cooling water for each of the first to third regions A to C to form the fillers 120c and 122c ). At this time, each of the first and second intermediate water tanks 114 and 116 circulates and mixes the cooling water of the first to third areas A to C to uniformize the temperature of the stored cooling water, And third fillers 120b, 122b and 120c, 122c, respectively.

Therefore, in the present invention, the cooling water saturated with heat is mixed by the first and second intermediate water tanks 114 and 116 installed between the fillers 120a to 120c and 122a to 122c, respectively, and the fillers 120b to 120c, 122b to 122c.

And FIGS. 7 to 9 are views showing the structure of the lower surface according to the embodiment of the intermediate water tank shown in FIG.

Referring to FIG. 7, the intermediate water tanks 114 and 116 according to the present invention have fillers 120b to 120c and 122b to 122c coupled to the outside of the lower surfaces 114a and 116a, A plurality of supply holes 114b are formed in the lower surfaces 114a and 116a in order to supply the cooling water to the lower surfaces 114a and 122c.

The intermediate water tanks 114 and 116 of this embodiment have a structure in which a plurality of supply holes 114b having the same diameter on the lower surfaces 114a and 116a are arranged at different densities for the regions A to C. That is, the bottom surfaces 114a and 116a of the intermediate water tanks 114 and 116 are connected to the lower fillers 120b to 120c and 122b to 122c, respectively, And the supply holes 114b gradually become thinner toward the third region C where the air is discharged from the region A. [ The number of the supply holes 114b may be reduced from the first area A to the third area C of the lower surfaces 114a and 116a.

This is because the cooling efficiency of the cooling water is lowered because the air flowing into the third region C passes through the first and second regions A and B of the fillers 120b to 120c and 122b to 122c, ) Is a state in which heat exchange is saturated. Accordingly, the cooling water supplied to the filler in the third region C needs to be supplied in a smaller amount than the supply amount of the cooling water supplied to the filler in the first region A. That is, the supply amount of the cooling water supplied from the first region A to the fillers 120b to 120c and 122b to 122c at the lower portion is supplied from the third region C to the fillers 120b to 120c and 122b to 122c at the lower portion So that the cooling water stored in the third region C is supplied more slowly so that the temperature of the cooling water in the corresponding region is lowered.

Therefore, the intermediate water tanks 114 and 116 of this embodiment are provided with the fillers 120b to 120c and 122b to 122c corresponding to the first region A when the cooling water is supplied to the lower filler passages 120b to 120c and 122b to 122c, The cooling water that has been supplied to the third region C and saturated with heat exchange is supplied to the intermediate tank (the second region C) by supplying the smaller amount of cooling water to the fillers 120b to 120c and 122b to 122c corresponding to the third region C, The temperature of the cooling water can be effectively lowered by the air introduced into the fillers 120b to 120c and 122b to 122c.

Referring to FIG. 8, the intermediate water tanks 114 'and 116' of this embodiment are provided with a plurality of supply holes 114d having different diameters on the lower surfaces 114c and 116c.

7, the bottom surfaces 114c and 116c of the intermediate water tanks 114 'and 116' are formed so as to cover the bottom surface of the fillers 120b to 120c and 122b to 122c, The diameter of the supply holes 114b gradually decreases from the first region A to the third region C so that the diameter of the third region C is smaller than the fillers 120b to 120c and 122b to 122c corresponding to the first region A. [ By supplying air to the fillers 120b to 120c and 122b to 122c even in the third region C by providing a smaller amount of cooling water to the fillers 120b to 120c and 122b to 122c The temperature can be effectively lowered.

9, the intermediate water tanks 114 "and 116" of this embodiment are provided with supply holes 114f having the same diameter on the lower surfaces 114e and 116e, and intermediate tanks 114 "and 116" Quot;), a cooling water mixing device 140 for circulating and mixing the cooling water is further provided. The cooling water mixing apparatus 140 is configured to mix the components of the cooling tower 100, for example, a cooling fan 104, a device (e.g., a valve, a pump, a freezer, etc.) And a controller 130 for controlling the controller 130. The control unit 130 includes, for example, a controller, a programmable logic controller (PLC), a computer, and the like, and controls and drives the cooling water mixing apparatus 140.

The cooling water mixing device 140 may be provided with, for example, a small-sized blowing fan, a pump, or the like. Of course, the cooling water mixing apparatus 140 may be installed for the same function in each of the intermediate water tanks 114, 114 ', 116, and 116' in FIGS. 7 and 8.

Although not shown in the drawing, the intermediate water tanks 114 " and 116 " may be provided with a plurality of temperature sensors (not shown) for measuring the temperature of the cooling water stored at different positions inside. In this case, the temperature sensors are electrically connected to the controller 130, and the temperature of the cooling water stored in the intermediate water tanks 114 " and 116 " is measured at different positions. When the temperature difference of the measured temperatures deviates from the set temperature range , The control unit 130 drives the cooling water mixing apparatus 140 to mix the cooling water.

Therefore, the intermediate water tanks 114 " and 116 " of this embodiment circulate and mix the stored cooling water to uniformly adjust the cooling water temperature in the first to third regions A to C to adjust the lower fillers 120b to 120c, 122b to 122c. As a result, the cooling water whose temperature has been raised by the first fillers 120a and 122a is controlled to be supplied to the fillers 120b to 120c and 122b to 122c in the same manner as in Figs. 7 and 8, The temperature of the cooling water can be effectively lowered by the air flowing into the fillers 120b to 120c, 122b to 122c irrespective of the temperatures (A to C).

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Accordingly, the embodiments disclosed herein are for the purpose of describing rather than limiting the technical spirit of the present invention, and it is apparent that the scope of the technical idea of the present invention is not limited by these embodiments. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: cooling tower
102: Housing
104: blowing fan
110: Upper water tank
112: Lower tank
114, 116: intermediate water tank
114a, 114c, 114e, 116a, 116c, 116c: a lower surface of the intermediate water tank
114b, 114d, 114f, 116b, 116d, 116f: supply holes
120, 122: filler
120a to 120c, 122a to 122c: first to third fillers
130:
140: Cooling water mixing device

Claims (2)

In the cooling tower:
A housing having parts of both sides thereof opened to allow air to flow from the outside;
A blowing fan installed at the upper center of the housing and discharging the introduced air to the outside;
An upper water tank installed inside the housing to store cooling water supplied from the outside;
A plurality of fillers installed in the lower portion of the upper tank so as to be stacked and cooling the cooling water flowing in from the upper tank through the air introduced from the outside;
A lower water tank installed in the lower portion of the housing for collecting cooling water supplied from the upper water tank through the filling material; And
At least one between the upper water tank and the lower water tank is installed between the fillers to collect and store the cooling water supplied from the upper filler among the fillers and redistribute the stored coolant water to the lower filler among the fillers And at least one intermediate water tank. In the cooling tower:
A housing having parts of both sides thereof opened to allow air to flow from the outside;
A blowing fan installed at the upper center of the housing and discharging the introduced air to the outside;
An upper water tank installed inside the housing to store cooling water supplied from the outside;
First and second fillers which are stacked in a multi-stage manner in the lower portion of the upper water tank and cool the cooling water introduced from the upper water tank through air introduced from the outside;
A lower water tank installed in the lower portion of the housing to collect cooling water supplied from the upper water tank via the first and second fillers; And
Between the first and second fillers of the first and second fillers, between the second filler and the third filler between the upper tank and the lower tank, And first and second intermediate water tanks for collecting and storing the cooling water supplied from each of the second fillers and redistributing the stored cooling water to each of the second and third fillers.

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