KR20040026197A - Cooling tower for indoor - Google Patents

Abstract

PURPOSE: An indoor cooling tower is provided to prevent influence on indoor air, and to reduce space needed for installation of the cooling tower. CONSTITUTION: A cooling tower(110) includes a casing(111) having an inlet(113) and at least one outlet(115), and heat exchange area formed therein; a fan(130) discharging air introduced through the inlet to the outlet; a filler(145) placed in the casing near the inlet to allow air introduced through the inlet to pass and coolant to flow down; a heat exchange part(140) storing the filler; a coolant spray part(150) placed on an upper part of the filler to supply hot coolant; an eliminator(173) collecting water drops splashed to the outlet into the cooling tower; and a reservoir(175) collecting coolant passing the filler to be cooled down to discharge. The filler, the eliminator and the fan are placed in the casing in horizontal direction. The cooling tower includes an air supply duct(117) placed on a front side of the inlet to guide flowing of air introduced into the inlet; and an exhaust duct(121) placed on a front side of the outlet to guide flowing of air discharged through the outlet.

Description

Indoor Cooling Tower {COOLING TOWER FOR INDOOR}

The present invention relates to an indoor cooling tower installed indoors or underground.

Generally air conditioning and refrigeration. In refrigeration equipment, freezers and industrial heat exchangers carry waste heat to be removed, and waste heat must be released to the atmosphere using a cooling medium to remove this waste heat. The cooling unit is divided into air cooling type which is forced convection of atmospheric air which is lower than the fluid to be cooled and sensible cooling, and cooling tower which is cooled by latent heat of evaporation by direct contact of cooling water and air. It is widely used because of its economic and cooling effect.

Cooling towers are generally economically and generally installed outdoors where they can be in direct contact with the atmosphere, but the growing density of cities and the maximization of building use are constraining the location of cooling towers, and the noise and emissions from outdoor cooling towers. Environment-induced elements cause civil complaints and facility restraints, and underground buildings and facilities are restricted from installing cooling towers on rooftops and grounds. It is manufactured and installed indoors.

6 is a schematic side view of a indoor cooling tower installed in a conventional indoor or underground. As shown, the conventional indoor cooling tower 410 has two air supply 413 and one exhaust port 415, and consists of a casing 411 to form a heat exchange area therein.

In the region adjacent to each air supply port 413 in the casing 411, a pair of pillars 445 through which air introduced from the air supply port 413 passes and the cooling water flows downward are provided.

A nozzle hole 455 for sprinkling hot coolant in a natural gravity manner is formed on the top of each filler 445, and a coolant supply tank 451 for storing and supplying hot coolant is disposed.

A centrifugal blower fan 430 is installed between the pair of fillers 445 to discharge the air introduced through each air supply port 413 to the exhaust port 415.

Between the filler 445 and each air supply port 413, an air supply louver 471 for recovering the coolant flowing out of the cooling tower 410 and the smooth flow of air flowing into the filler 445 via the air supply port 413 is provided. It is prepared.

An eliminator 473 is provided between the centrifugal blower fan 430 and each filler 445 to collect the water droplets scattered by the exhaust port 415.

Under the filler 445, a water collecting tank 475 is provided for collecting the cooling water cooled through the filler 445.

On the other hand, the air supply inlet 417 is guided through the inner wall of the machine room 409 in which the cooling tower 410 is installed, and introduces air into the air supply port 413 of the cooling tower 410 through the internal space of the machine room 409. The exhaust duct 421 is connected to the front of the exhaust port 415 to guide the flow of air discharged from the exhaust port 415 to the outside.

The cooling tower 410 having such a configuration is generally housed in the machine room 409 forming the indoor space.

However, the conventional indoor cooling tower has an air inlet flow space for each air inlet as the air inlet is a double suction structure, so that the installation area of the cooling tower is increased, and the air supply duct does not have a duct structure directly connected to each air inlet. Since the air flows into the air supply port 413 through the space in the machine room 409, the inside of the machine room 409 is in a negative pressure (NEGATIVE PRESSURE) state during the operation of the cooling tower. Since indoor air is bypassed through the abnormal path lower than the air supply duct resistance, such as windows and pits, there is a problem that may cause pollution of indoor air and heat loss of the indoor air.

In addition, the cooling water supply tank, which is formed in the upper part of the cooling tower and usually has a depth of about 30 cm, is opened, so when trouble occurs in the flow of cooling water, such as a cooling water circulation pump, or a water spray nozzle is blocked during operation of the cooling tower, the open cooling water is opened. Cooling water overflows through the supply tank to contaminate the water loss and the room, and the open water supply tank can cause contamination of the cooling water due to the inflow of foreign substances into the cooling water system.

In addition, when the machine room is used as a cooling tower air flow space, a higher construction cost is required to maintain the airtightness in the building structure, and even if the airtightness is maintained, the door is pulled out due to excessive negative pressure corresponding to the suction static pressure of the cooling tower blower fan. This opening is difficult, and the push-open door may cause a safety accident due to the impact of the door that is opened by the sound pressure when the door is opened.

In the conventional cooling tower, since the absolute height of the cooling tower must be maintained due to the cross-flow flow and the natural gravity spraying structure, there is a problem in that the cooling tower is restricted depending on the height of the indoor structure.

Accordingly, an object of the present invention is to provide an indoor cooling tower which does not affect the indoor air in which the cooling tower is installed, and can reduce the installation space of the cooling tower.

Another object of the present invention is to provide a cooling tower for indoors that can maintain the performance of the cooling tower, reduce contamination and loss of cooling water, and prevent indoor environmental pollution.

1 is a side sectional view schematically showing a main part of an indoor cooling tower according to a first embodiment of the present invention;

2 is a schematic plan view of FIG. 1;

3 is a side sectional view schematically showing the main part of the indoor cooling tower according to the second embodiment of the present invention;

4 is a schematic side sectional view showing main parts of an indoor cooling tower according to a third embodiment of the present invention;

5 is a schematic plan view of FIG. 4;

6 is a schematic side view of a conventional indoor cooling tower.

* Explanation of symbols for the main parts of the drawings

110,210,310: cooling tower 111,211,311: casing

113,213,313: Air supply port 115,215,315: exhaust port

117,217,317: Supply duct 121,221,321: Exhaust duct

130,230,330: blower fan 140, 240, 340: heat exchanger

145,245,345: Filler 150,250: Cooling water spraying part

151,251: cooling water inlet 152,252: cooling water outlet

153,253: distribution pipe 155,255,363: watering nozzle

173,273,373: eliminator 175,275,375: sump

351: cooling coil 357: cooling water circulation pump

359: cooling water spray pipe 365: partition

366: bottom air inlet

In order to achieve the above object, the present invention, the indoor cooling tower, the casing having one air inlet and at least one exhaust port through which air is introduced and discharged; A blowing fan for discharging air introduced through the air supply port to the exhaust port; A filler provided in the casing in a region adjacent to the air supply port, through which air introduced from the air supply port passes and in which cooling water flows downward; A heat exchanger accommodating the filler; A cooling water sprinkling unit provided at an upper portion of the filler to supply high temperature cooling water; An eliminator for recovering water droplets scattered to the exhaust port into a cooling tower; It provides an indoor cooling tower comprising a water collecting tank for collecting and discharging the cooling water cooled by the filler.

Here, it is preferable that the louver, the filler, the eliminator, and the blowing fan are arranged in a horizontal direction in the casing.

The cooling tower is installed by further comprising an air supply duct provided in front of the air supply port to guide the flow of air flowing into the air supply port, and an exhaust duct provided in front of the air exhaust port to guide the flow of air discharged from the air exhaust port. It does not affect the indoor air, which reduces the installation space of the cooling tower.

The heat exchanger may further include a cooling coil disposed on an upper portion of the filler and having an inlet and an outlet through which cooling water is introduced and discharged.

The cooling water sprinkling portion is disposed in an upper portion of the filler to introduce a high-temperature cooling water, a plurality of distribution pipes for distributing high-temperature cooling water to be branched and cooled from the inlet pipe, and installed in the distribution pipe. It may include a plurality of spray nozzles for spraying the high temperature cooling water toward.

In addition, the cooling water circulation pump for circulating to cool the cooling water of the sump to the cooling coil; A cooling water sprinkling distribution pipe disposed above the cooling coil and distributing cooling water of the water collecting tank circulated; Is installed in the cooling water spraying distribution pipe, may include a plurality of spray nozzles for spraying the cooling water toward the surface of the cooling coil and the filler, further comprises a bottom air inlet for guiding the flow of air toward the filler It is desirable to.

The blowing fan is preferably mounted by suction blowing.

Preferably, the blowing fan has a centrifugal type, and the blowing fan includes a fan main body accommodating an impeller, a drive motor for driving the impeller, a connection between the impeller and the drive motor, and the power of the drive motor to the impeller. It may include a power transmission unit for transmitting, it is more effective that the drive motor and the power transmission unit is provided on the outside of the casing.

Here, the blowing fan may be manufactured in the axial flow type.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings.

Prior to the description, in the various embodiments, components having the same configuration will be described in the first embodiment by only referring to the drawings differently, and in other embodiments, only components different from the first embodiment will be described. Let's explain.

1 is a side sectional view schematically illustrating a main part of an indoor cooling tower according to a first embodiment of the present invention, and FIG. 2 is a schematic plan view of FIG. 1. As shown in these figures, the indoor cooling tower 110 has a casing 111 having one air inlet 113 and a pair of exhaust ports 115 through which air is introduced and discharged and forming a heat exchange area therein; , A blower fan 130 for discharging the air introduced through the air supply port 113 to the exhaust port 115, a filler 145 through which air flowed from the air supply port 113 flows downward, and a filler; The heat exchanger 140 for accommodating the 145, the coolant sprinkler 150 for supplying the coolant at a high temperature toward the filler 145, and the water droplets scattered to the exhaust port 115 are recovered into the cooling tower 110. The eliminator 173 and a collecting tank 175 collecting and discharging the cooling water cooled through the filler 145.

The casing 111 has a tubular shape accommodating the heat exchange area. One side of the casing 111 is provided with one air supply port 113 through which air is supplied into the casing 111, and the upper portion of the casing 111 has a pair of exhaust ports 115 through which cooled air is discharged to the outside. It is prepared.

The air supply duct 117 is connected to the air supply 113 to guide the flow of air introduced into the casing 111. Here, an air supply duct connecting member 119 for elastically connecting the air supply 113 and the air supply duct 117 may be selectively interposed between the air supply 113 and the air supply duct 117. In the air supply duct connecting member 119 is provided.

An exhaust duct 121 for guiding the flow of air discharged from the casing 111 is provided in front of each exhaust port 115, and the exhaust port 115 and the exhaust duct 121 are elastic exhaust duct connecting members 123. Are interconnected by

The blowing fan 130 connects a pair of fan bodies 131 to accommodate an impeller (not shown), a drive motor 135 to drive the impeller, a drive motor 135 to connect the impeller and the drive motor 135. As a power transmission unit for transmitting the power of the impeller has a pulley (133, 137) and a drive belt (139).

The impeller has a centrifugal structure, and each fan body 131 is supported inside the casing 111 in the lower region of each exhaust port 115. One end of the impeller is mounted with a fan pulley 133 to which the driving belt 139 is coupled, and the fan pulley 133 is provided outside the casing 111.

The motor pulley 137 to which the drive belt 139 is coupled is mounted on the shaft of the drive motor 135, and the drive motor 135 and the motor pulley 137 are provided outside the casing 111.

The motor pulley 137 and the fan pulley 133 are interconnected by the drive belt 139, so that the power of the drive motor 135 is transmitted to the impeller by the pulleys 133 and 137 and the drive belt 139, respectively. do.

The filler 145 is provided in the heat exchange part 140 region adjacent to the air supply 113 in the casing 111. While the air flowing from the air supply port 113 flows horizontally into the filler 145, the hot coolant flows vertically downward from the coolant sprinkler 150, and thus the hot coolant and the air cross each other to evaporate and heat. Cooling water is cooled.

The cooling water sprinkling part 150 which supplies a high temperature cooling water toward the filler 145 is provided in the upper part of the filler 145. The cooling water sprinkling unit 150 is disposed above the filler 145 and includes a plurality of distribution pipes for distributing high temperature coolant to be cooled by branching from the inlet pipe 151 into which the high temperature coolant flows. 153 and a plurality of spray nozzles 155 provided in each distribution pipe 153 for pressure sprinkling of the cooling water of high temperature toward the filler 145.

On the outer circumferential surface of the distribution pipe 153 facing the filler 145, a plurality of spraying nozzles 155 are provided at predetermined intervals.

Therefore, even if a pressure occurs in the cooling water circulation pump (not shown) to supply the high temperature cooling water to the inlet pipe 151, the flooding of the cooling water through the open cooling water supply tank as in the conventional cooling tower and foreign matters from the outside are introduced. There is no fear of contaminants and cooling water loss in the room and cooling water.

An air supply louver 171 is provided between the filler 145 and the air supply 113 to smoothly flow the air flowing into the filler 145 via the air supply 113.

An eliminator 173 is provided between the filler 145 and the fan body 131 of the blower fan 130 to collect the water droplets scattered to the exhaust port 115 into the cooling tower 110.

A collecting tank 175 is provided below the filler 145 to collect and discharge the cooling water cooled by the filler 145. The cooled cooling water in the collection tank 175 is supplied to a heat exchange facility (not shown) through the cooling water outlet 152, and the hot water absorbing the cooling heat is recycled to the cooling tower 110.

Meanwhile, reference numeral 109, which is not described, indicates a machine room in which the cooling tower 110 according to the first embodiment of the present invention is installed.

By such a configuration, when the blower fan 130 is operated and the high temperature cooling water is sprayed toward the filler 145 through the spray nozzle 155, the air introduced into the air inlet 113 through the air supply duct 117. The direct contact with the high temperature cooling water in the filler 145 cools the high temperature cooling water, and then is discharged to the outside through the exhaust duct 121 through the blower fan 130 and the exhaust port 115.

At this time, since the air flowing into the casing 111 is introduced through the air supply duct 117 connected to the air supply port 113, not only the installation space of the cooling tower 110 may be reduced, but also the indoors in which the cooling tower 110 is installed. Since the air does not flow into the cooling tower 110, the cooling tower 110 does not affect the indoor air is installed. In addition, since the high temperature cooling water is sprayed toward the filler 145 through the water spray nozzle 155 through the sealed distribution pipe 153, a cooling water circulation pump for supplying the high temperature cooling water to the inlet pipe 151 (not shown). Even if a trouble occurs in the back, there is no fear of flooding the coolant through the open cooling water supply tank as in the conventional cooling tower and foreign matters from the outside, thereby preventing contamination of the indoor and cooling water and cooling water loss.

3 is a side cross-sectional view schematically illustrating a main part of an indoor cooling tower according to a second embodiment of the present invention. Unlike the first embodiment, the blower fan 230 is accommodated in the casing 211. The impeller (not shown) of the blower fan 230 is an axial flow type, and the impeller and the drive motor 235 of the blower fan 230 are directly connected by the coupling which is not shown in figure.

On the other hand, Figure 4 is a schematic side cross-sectional view of the main part of the indoor cooling tower according to a third embodiment of the present invention, Figure 5 is a schematic plan view of FIG. As shown in these figures, the indoor cooling tower 310 according to the third embodiment of the present invention is a sealed type, unlike the first embodiment described above, disposed above the filler 345 in the heat exchanger 340. And a cooling coil 351 consisting of a closed tube in which a high temperature cooling water flows and heat exchanges with an inlet and an outlet through which the cooling water is introduced and discharged, a cooling water circulation pump 357 for circulating the cooling water of the collection tank 375, and a cooling coil. Cooling water sprinkling distribution pipe (359) disposed in the upper portion of the 351 for distributing the cooling water, and installed in the cooling water sprinkling distribution pipe (359) to spray the cooling water toward the surface of the cooling coil 351 and the filler 345 Has a spray nozzle 355.

The cooling coil 351 is provided at an upper side of the filler 345 in the heat exchanger 340, and has an inlet 353 through which hot coolant flows and an outlet 355 through which the cooled coolant is discharged. The inlet 353 of the cooling coil 351 is disposed in the upper region of the casing 311, the outlet 355 is disposed in the upper side of the filler 345, the cooling coil 351 is a filler 345 as a whole It is arranged on the upper side of the.

The cooling water circulation pump 357 is provided on the water collection tank 375 and the cooling water circulation pipe 361 through which the cooling water is circulated, and is installed outside the casing 311.

The cooling water sprinkling distribution pipe 359 includes a plurality of upper portions of the filler, and a plurality of sprinkling nozzles 363 are provided on the outer circumferential surface of the sprinkling distribution pipe 359 facing the cooling coil 351 at predetermined intervals.

In addition, the indoor cooling tower 310 according to the third embodiment of the present invention further has a partition 365 for forming a bottom air inlet 366 toward the filler 345. The partition wall 365 is provided in an adjacent area of the air supply port 313 in the casing 311 and partitions the bottom air inflow path 366 and the cooling coil area.

By such a configuration, the high temperature cooling water flowing in the cooling coil 351 is evaporated and cooled by the air flowing from the air supply port 313 and the cooling water of the water collecting tank 375 to be sprinkled, and the inside of the heat exchange facility (not shown). A portion of the air introduced into the air supply 313 through the air supply duct 317 flows to the filler 345 through the bottom air inlet 366 and is in direct contact with the cooling water of the water collecting tank 375 circulated. After exchanging heat with each other, the air is discharged to the outside through the exhaust fan 330 and the exhaust port 315 via the cooling coil 351, and the remaining air introduced into the air supply 313 is cooled. After the evaporative cooling heat exchange with the high temperature cooling water in the cooling coil 351 together with the cooling water of the water collection tank 375 flowing and circulating in the coil 351, the exhaust duct 321 through the blower fan 33 and the exhaust port 315. Is discharged to the outside through.

As such, by connecting the air supply duct to the air supply duct of the cooling tower, the air is introduced, heat exchanged, and discharged to the outside through the exhaust port, thereby reducing the installation space of the cooling tower installed indoors, as well as the indoor air in which the cooling tower is installed. It does not enter the room and does not affect the indoor air. In addition, the high temperature cooling water is sprayed through the water spray nozzle toward the filler through a sealed distribution pipe, so that even if a trouble occurs in a pump that supplies the high temperature cooling water to the distribution pipe, flooding of the cooling water through the water spray is prevented, thereby preventing indoor environmental pollution. It also prevents the loss of the coolant and also prevents contamination of the coolant since there is no fear of foreign substances from entering the outside.

As described above, according to the present invention, it is possible to reduce the installation space of the cooling tower, and to provide an indoor cooling tower that does not affect the indoor air in which the cooling tower is installed. In addition, it provides an indoor cooling tower that can prevent the cooling water loss and indoor environmental pollution due to maintaining the performance of the cooling tower and flooding of the cooling water.

Claims (11)

In the indoor cooling tower, A casing having one air supply port and at least one exhaust port through which air is introduced and discharged, and forming a heat exchange region therein; A blowing fan for discharging air introduced through the air supply port to the exhaust port; A filler provided in the casing in a region adjacent to the air supply port, through which air introduced from the air supply port passes, and in which cooling water and air flow downward; A heat exchanger accommodating the filler; A cooling water sprinkling unit provided at an upper portion of the filler to supply high temperature cooling water; An eliminator for recovering water droplets scattered to the exhaust port into a cooling tower; Indoor cooling tower comprising a collecting tank for collecting and discharging the cooling water cooled by the filler. The method of claim 1, The louver, the filler, the eliminator, and the blowing fan are disposed in the horizontal direction in the casing, the indoor cooling tower. The method of claim 1, An air supply duct coupled to the air supply port to guide the flow of air introduced into the air supply port; The indoor cooling tower further comprises an exhaust duct provided in front of the exhaust port to guide the flow of air discharged from the exhaust port. The method of claim 1, The heat exchange unit, Is disposed on top of the filler, the indoor cooling tower, characterized in that it comprises a cooling coil inlet and outlet through which the coolant flows in and out, the hot water flows and heat exchanges. The method of claim 1, The cooling water spraying unit, An inlet pipe disposed above the filler and into which high temperature coolant is introduced; A plurality of distribution pipes for distributing high temperature cooling water to be branched and cooled from the inlet pipe; An indoor cooling tower, characterized in that it comprises a plurality of spray nozzles installed in the distribution pipe to spray the high temperature cooling water toward the filler. The method of claim 4, wherein The cooling water spraying unit, A cooling water circulation pump for circulating the cooling water of the sump to spray the cooling coils; A cooling water sprinkling distribution pipe disposed above the cooling coil and distributing cooling water of the water collecting tank circulated; It is installed in the cooling water spraying distribution pipe, the indoor cooling tower comprising a plurality of spraying nozzles for spraying the cooling water toward the surface of the cooling coil and the filler. The method of claim 6, Indoor cooling tower further comprises a bottom air inlet for guiding the flow of air toward the filler. The method of claim 1, The blowing fan is a indoor cooling tower, characterized in that the suction blowing type. The method of claim 1, The cooling fan is an indoor cooling tower, characterized in that the centrifugal type. The method of claim 9, The blowing fan, A fan body accommodating the impeller, A drive motor for driving the impeller; A power transmission unit connecting the impeller and the drive motor and transferring power of the drive motor to the impeller; The drive motor and the power transmission unit indoor cooling tower, characterized in that provided on the outside of the casing. The method of claim 1, The blowing fan is an indoor cooling tower, characterized in that the axial flow.