KR102270023B1 - Cooling tower with multiple air flow and water distribution method - Google Patents

Abstract

The present invention relates to a pre-cooling cooling tower to which multiple air flow and water distribution methods are applied. According to the present invention, the cooling tower not only removes condensed waste heat from refrigerators in industrial sites that require cold water 24 hours a day, but also cools cold water used on a heat source load side without using the refrigerator (refrigeration cycle) in winter. During change of season, cooling water is used to assist the cooling of cold water, thereby capable of reducing an operating cost of the refrigerator which is a high-power consuming device.

Description

Pre-cooling cooling tower with multiple air flow and water distribution method

The present invention relates to a pre-cooling cooling tower to which a multiple air flow and water distribution method is applied, and more particularly, it removes the condensed waste heat of a refrigerator in an industrial site that requires cold water 24 hours a day, and does not use a refrigerator (refrigeration cycle) in the winter season Multiple air flow and water distribution method with improved structure to enable cooling of the cold water used on the heat source load side, and to reduce the operating cost of the refrigerator, which is a high power consumption device, by using the cooling water to assist in cooling the cold water in the changing season. This relates to the applied pre-cooling cooling tower,

Mechanical ventilation cooling towers contact the high-temperature cooling water flowing into the cooling tower with outside air to partially evaporate the high-temperature cooling water and supply high latent heat of evaporation from the high-temperature cooling water to reduce the high-temperature cooling water temperature when about 1% is evaporated. It is possible to cool about 5.63℃.

The capacity of the cooling tower is determined by the difference between the hot coolant inlet temperature and the outside air wet bulb temperature. The larger the difference, the easier the cooling. Usually, the difference (range) between the cooling water inlet/outlet temperature is 5℃, and the cooling water outlet temperature and the outside air temperature. The difference in wet bulb temperature (approach) is applied to 5℃ and the standard design condition is 37/32/27℃. Although the cooling water inlet/outlet design conditions do not change, the outside air wet-bulb temperature changes during year-round operation, so even in the same cooling tower, the capacity changes according to the wet-bulb temperature change. When the cooling tower does not produce cooling water, it becomes possible to produce cold water.

This case is called pre-cooling, and the cooling water system is an open system water pipe that is in contact with air, and the cold water system is a closed system water pipe that does not come in contact with air, so there are two pre-cooling methods. When producing cold water with an open cooling tower, a heat exchanger is placed between the open system and the closed system to indirectly transmit the produced cold water, and in the case of a closed cooling tower, the cold water produced in the cooling tower is directly supplied. However, since the closed cooling tower has a smaller evaporation area compared to the open type cooling tower, an open type cooling tower requires about twice the capacity.

The conventional pre-cooling system using a cooling tower can be used only in the winter season when the operation of the refrigerator is not required, and it is possible to save energy by reducing the partial load of the refrigerator in the season when cold water can be partially supplied. Since it cannot be removed at the same time, there was a problem that one cooling tower could not simultaneously process cold water production and cooling water cooling. In order to overcome this, it is necessary to additionally install an extra cooling tower, and it is practically difficult to apply precooling using the cooling tower due to the problem of equipment cost.

Republic of Korea Patent Publication No. 10-2062013

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a precooling cooling tower to which multiple air flow and water distribution methods are applied, which enables power consumption reduction and energy use efficiency improvement.

The pre-cooling cooling tower to which the multiple air flow and water distribution method is applied according to the present invention for achieving the above object is to lower the cooling water for cooling the condenser forming the refrigerating cycle from the first temperature to the second temperature, It includes a first space and a second space partitioned from each other by a partition wall, and a first water tank and a second water tank are provided below each of the first space and the second space, and each of the first space and the second space On the upper side, cooling water passing through the condenser flows in, and a first sprayer and a second sprayer for spraying the introduced coolant toward each water tank are provided, respectively, between the first water tank and the first sprayer and between the second water tank and the second sprayer. is provided with a first latent heat exchanger and a second latent heat exchanger, a blower fan is rotatably installed on the upper side, and an opening is formed in each of the side frame portions forming the four sides to allow air inflow through the four sides, case; And in the summer season, one side that allows air to flow into the first space is closed so that only 3 sides (which are always open through the opening) of the 4 sides of the case are opened, and in the winter season, all 4 sides of the case are closed and a damper rotatably installed on a side frame portion forming one surface of the case so as to be opened.

The present invention is disposed in the second water tank, and the cold water circulating in the refrigerating cycle is introduced, and the cold water introduced therein is directly cooled with the cooling water accommodated in the second water tank and discharged. It is preferable to further include a heat exchanger. Do.

The present invention is a cold water side normal path unit to circulate cold water on the refrigeration cycle track to enable cold water cooling through the refrigeration cycle in summer; and a cold water-side path change unit for introducing cold water passing through a heat source load side into the sealed heat exchanger so that cold water can be cooled without operating the refrigeration cycle in winter.

The present invention further includes a cold water side hybrid path unit that allows the cold water side normal path unit and the sealed type heat exchanger to selectively fluidly move so that the cold water can be cooled by the sealed heat exchanger while using the refrigeration cycle in different seasons. it is preferable

In the summer season, the cooling water passing through the condenser of the refrigeration cycle only by the second injector and the second latent heat exchanger located on the second space side without using the first injector and the first latent heat exchanger located on the side of the first space a first connection pipe for summer that communicates with each other the condenser of the refrigeration cycle and the second injector disposed on the upper side of the second space of the case, and the lower side of the second water tank and the evaporator a cooling water circulation system unit for summer including a second connection pipe; and cooling the cold water flowing into the sealed heat exchanger with the cooling water contained in the first and second water tanks without using the refrigeration cycle in the winter season. A first connection pipe for winter season for communicating the first sprayer, a second connection pipe for winter season for communicating the first water tank and the second water tank with each other, and the cooling water discharged from the second water tank to the first water tank and the second water tank Cooling water for winter including a third connection pipe for winter season that communicates the second water tank and the first connection pipe for summer season so that it can be introduced into the water tank again, and a circulation pump disposed on the path of the third connection pipe It is preferable to include a circulatory system unit.

In the present invention, the cooling water passing through the condenser of the refrigeration cycle only by the first injector and the first latent heat exchanger located on the first space side without using the second injector and the second latent heat exchanger located on the side of the second space during the changing season It is preferable to include; a cooling water circulation system unit for the changing seasons that allows to cool the.

The pre-cooling cooling tower to which the multi-air flow and water distribution method having the configuration as described above is applied divides the case of the cooling tower into two spaces, and includes a first latent heat exchanger and a second latent heat exchanger disposed in each space, , An opening is formed on 3 of the 4 sides of the case to allow air inflow at all times, and a damper that selectively enables air inflow is installed on the remaining 1 side, so that the damper is closed so that 1 side is closed in summer. It is rotated to enable cooling of the coolant that has passed through the refrigeration cycle using the second latent heat exchanger, and in winter, the damper is operated so that one side is open, so that the cold water passing through the heat source load side using the first and second latent heat exchangers allow cooling.

Therefore, in the precooling cooling tower to which the multiple air flow and water distribution method according to the present invention is applied, cold water cooling using cooling water is possible without using a refrigeration cycle in winter, and cooling water can be cooled using one latent heat exchanger in summer This has the effect of reducing power consumption.

In winter, the cold water passing through the heat source load is introduced into the sealed heat exchanger disposed in the second water tank without using a refrigeration cycle, and sealed heat exchange with the cooling water cooled by the second latent heat exchanger in the second water tank. According to the embodiment configured to directly cool the cold water circulating in the air tank, and to introduce the cooling water cooled by the first latent heat exchanger in the first water tank into the second water tank, the cooling efficiency can be further improved. Accordingly, it is expected to reduce power consumption and improve energy use efficiency.

In addition, according to the embodiment configured to assist the cooling of cold water by using the second latent heat exchanger provided in the second space during the changing season, and configured to cool the condenser of the refrigeration cycle using the first latent heat exchanger provided in the first space, refrigeration It is possible to reduce power consumption by minimizing the use of cycles, as well as to improve cooling efficiency by configuring the first and second spaces of the cooling tower to be used separately for cold water cooling and cooling water cooling, respectively. It is expected.

1 is a perspective view of a pre-cooling cooling tower to which a multi-air flow and water distribution method is applied according to an embodiment of the present invention;
Figure 2 is an exploded perspective view showing some components of an embodiment of the present invention separated.
3 is a partially cut-away cross-sectional view of an embodiment of the present invention.
4 is a view for explaining an operation process of a damper employed in an embodiment of the present invention.
5 is a view for explaining an airflow flow according to the operation of the damper employed in an embodiment of the present invention.
6 is a view for explaining a summer cooling mechanism and related configuration of an embodiment of the present invention.
7 is a view for explaining a winter cooling mechanism and related configuration of an embodiment of the present invention.
8 is a view for explaining the cooling mechanism and related configuration between the seasons of an embodiment of the present invention.

In the following description, in order to clarify the understanding of the present invention, descriptions of well-known techniques for the features of the present invention will be omitted. The following examples are detailed descriptions to help the understanding of the present invention, and it will be of course not to limit the scope of the present invention. Accordingly, equivalent inventions performing the same functions as the present invention will also fall within the scope of the present invention.

In addition, in the following description, the same identification symbols mean the same configuration, and unnecessary redundant descriptions and descriptions of well-known technologies will be omitted. In addition, the description of each embodiment of the present invention that overlaps with the description of the technology that is the background of the invention will also be omitted.

Hereinafter, a pre-cooling cooling tower to which a multi-air flow and water distribution method is applied according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a pre-cooling cooling tower to which a multi-air flow and water distribution method is applied according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing some components of an embodiment of the present invention in isolation, and FIG. 3 is the present invention It is a partial cut-away cross-sectional view of an embodiment, and FIG. 4 is a view for explaining the operation process of the damper employed in an embodiment of the present invention, and FIG. 5 is an airflow flow according to the operation of the damper employed in the embodiment of the present invention 6 is a view for explaining the summer cooling mechanism and related configuration of an embodiment of the present invention, and FIG. 7 is a view for explaining the winter cooling mechanism and related configuration of an embodiment of the present invention, FIG. It is a view for explaining the cooling mechanism and related configuration in the seasons of the embodiment of the present invention.

1 to 3, the pre-cooling cooling tower to which the multiple air flow and water distribution method is applied according to an embodiment of the present invention provides cooling water for cooling the condenser 52 forming the refrigerating cycle. It is to lower the temperature from the first temperature to the second temperature, and includes a case (1) and a damper (2).

In the case 1, unlike the prior art consisting of one injector and one latent heat exchanger, two injectors and two latent heat exchangers can be selectively used to minimize power consumption for each season to increase energy use efficiency. The structure that allows it to exist has been compromised. Here, the seasons refer to all four seasons, including the summer season, the winter season, and the two interseasonal seasons between the summer and winter seasons.

That is, the case 1 is partitioned by the partition wall D and includes a first space 11 and a second space 12 in which an injector and a latent heat exchanger are disposed in each partitioned space. A first water tank 113 and a second water tank 123 are arranged to be partitioned from each other on the lower side of each of the first space 11 and the second space 12, and on the upper side of each, the condenser 52 is A first sprayer 111 and a second sprayer 121 for injecting the coolant into each water tank and injecting the coolant into each tank are provided, and between the first water tank 113 and the first sprayer 111 and between the second water tank ( A first latent heat exchanger 112 and a second latent heat exchanger 122 are respectively disposed between the 123 and the second injectors 121 .

And, a blower fan 97 for forming an air flow from the lower side to the upper side is rotatably installed on the upper side of the case (1), and the side frame part forming the four sides of the case (1) has an external An opening is formed to allow the inflow of air into the inside.

The damper 2 is rotatably installed on the side frame portion forming one surface of the case 1, and serves to selectively open and close the first surface. That is, the damper 2 moves toward the first space 11 so that only three of the four surfaces of the case 1 are opened in summer season, as shown in FIGS. 4 (a) and 5 (a). One side that allows air inflow is closed, and as shown well in FIGS. 4 (b) and 5 (b), in the winter season, the four sides of the case 1 are rotated in a direction to open the one side. Let all of this be open.

In this way, in summer, the damper 2 is rotated to close one side where the damper 2 is installed, and only the remaining three sides of the case 1 are opened and used, and in winter, the damper 2 is installed on one side. The reason for opening and using all four sides of the case (1) is that it can cool the cold water on the heat source load (A) side using the cooling water of the cooling tower without using a refrigeration cycle that requires a lot of power in winter. In the end, both the first latent heat exchanger 112 and the second latent heat exchanger 122 are required to be used, and in the summer season, the essential use of the refrigeration cycle is required to lower the cold water on the heat source load A side to a certain temperature. This is because only the second latent heat exchanger 122 is used to cool the condenser 52 of the refrigeration cycle. Here, the heat source load A generally refers to a load side where the cold water is used, such as an air conditioner or an air conditioner used to provide cold air to an office or factory.

In other words, the cooling water circulating in the cooling tower is generally used for the purpose of lowering the temperature of the condenser 52 of the refrigeration cycle, which is used the most in summer. That is, the refrigerating cycle is for lowering the temperature of the cold water passing through the heat source load (A) side, and the cooling water of the cooling tower is the condenser 52 of the refrigerating cycle so that the refrigerating cycle driven to lower the cold water can be operated normally. ) to lower it to a certain temperature. Reference numeral 53 in the drawings denotes a compressor constituting a refrigeration cycle.

Therefore, in this embodiment, the first latent heat exchanger 112 and the second latent heat exchanger 122 because the cold water on the heat source load (A) side must be cooled without depending on the refrigeration cycle in the winter season when the refrigeration cycle is not operated. is configured to perform a chilled water cooling mode using cooling water by operating all of the condenser 52 cooling mode, which is the original function of the cooling water circulating in the cooling tower, in the summer season when the refrigeration cycle is operated, so the second space 12 It is configured to cool the cooling water that has passed through the condenser 52 using only the second latent heat exchanger 122 disposed in the .

The precooling cooling tower to which the multi-air flow and water distribution method having the configuration as described above is applied divides the case 1 of the cooling tower into two spaces, and the first latent heat exchanger 112 and the second 2 includes a latent heat exchanger 122, an opening is formed on three of the four sides of the case 1 so that air can always be introduced, and the other side has a damper 2 that selectively enables air inflow. is installed so that the damper 2 is rotated so that the one side is closed in summer to enable cooling of the cooling water that has gone through the refrigeration cycle using the second latent heat exchanger 122, and the one side is open in winter By operating the damper 2 as much as possible, cooling of the cold water via the heat source load A is possible using the first latent heat exchanger 112 and the second latent heat exchanger 122 .

Therefore, in the precooling cooling tower to which the multiple air flow and water distribution method according to this embodiment is applied, cold water cooling using cooling water is possible without using a refrigeration cycle in winter, and cooling water is cooled using one latent heat exchanger in summer. As this becomes possible, the advantage of reducing power consumption can be expected.

On the other hand, the first latent heat exchanger 112 and the second latent heat exchanger 122 are general fillers used in a cooling tower. At the same time as the team, the air introduced into the case 1 through the four sides passes upward to allow the high-temperature cooling water to exchange heat with the air, thereby enabling cooling of the cooling water.

Unlike a typical cooling tower, the present embodiment further includes a sealed heat exchanger 3 disposed in the second water tank 123 on the second space 12 side. The sealed heat exchanger 3 serves to inlet the cold water circulating in the refrigerating cycle, and to directly cool the introduced cold water with the cooling water accommodated in the second water tank 123 and discharge it.

Hereinafter, the characteristics of the present embodiment according to the cooling water and the flow of the cooling water will be described in detail for each season.

1) Cooling mechanism in summer season

① Operational composition and principle of operation

As shown in Figure 6, in the summer season, it is impossible to cool the cold water using the cooling water of the cooling tower due to the high wet-bulb temperature, so a refrigerant vapor compression system using electric power, a refrigeration cycle, is used. It cools the waste heat generated in the refrigerator condenser 52 so that the In this embodiment, the second injector 121 and the second latent heat exchanger 122 disposed in the second space 12 are operated to cool the high-temperature coolant from the condenser 52 .

② The flow of cold water used on the heat source load (A) side and the configuration for it

This embodiment includes a cold water-side normal path unit that allows cold water to circulate on the refrigeration cycle path to enable cooling of the cold water by the refrigeration cycle in summer.

The cold water side normal path unit enables fluid movement of the heat source load (A) side and the evaporator 51 of the refrigeration cycle so that the cold water from the heat source load (A) side can flow into the evaporator 51 of the refrigerating cycle. The first connecting pipe 41 for the normal path on the cold water side for connecting (hereinafter referred to as 'communication'), and the evaporator 51 so that the cold water discharged from the evaporator 51 can be introduced into the heat source load A side. ) and the heat source load (A) is made including a second connection pipe 42 for the normal path of the cold water side to communicate.

③ Cooling water flow for cooling the condenser 52 of the refrigeration cycle and its configuration

In the present embodiment, without using the first injector 111 and the first latent heat exchanger 112 located on the side of the first space 11 in summer, the second injector 121 located on the side of the second space 12 ) and the second latent heat exchanger 122, and a cooling water circulation system unit for summer that allows cooling of the cooling water passing through the condenser 52 of the refrigeration cycle.

That is, the cooling water circulation unit for the summer season may communicate with the condenser 52 of the refrigeration cycle and the second injector 121 disposed above the second space 12 of the case 1, the condenser ( 52) and the first connecting pipe 61 for summer season connected to the second injector 121, and the cooling water cooled through the second injector 121 and the second latent heat exchanger 122 is discharged to the refrigeration cycle. In order to be introduced again, it comprises a second connection pipe 62 for summer that communicates the lower side of the second water tank 123 and the condenser 52 .

2) Cooling mechanism in winter season

① Operational composition and principle of operation

As shown in FIG. 7 , in winter, due to the low wet bulb temperature, it is possible to cool the cold water using the cooling water of the cooling tower without using the compressor 53 , the condenser 52 and the cooling water flow pump on the refrigeration cycle. can be greatly reduced.

As such, in the winter season, the first latent heat exchanger 112 in the first space 11 and the second latent heat exchanger in the second space 12 ( 122), as well as the operation of the sealed heat exchanger 3 disposed in the water tank of the second space 12 is required.

② The flow of cold water used on the heat source load (A) side and the configuration for it

This embodiment includes a cold water side path change unit that allows cold water passing through the heat source load (A) to flow into the sealed heat exchanger 3 so that cold water can be cooled without operating the refrigeration cycle in winter. .

The cold water side path change unit includes a first connection pipe 71 for changing the cold water side path for introducing the cold water discharged from the heat source load A into the sealed heat exchanger 3, and the sealed heat exchanger 3 ) and a second connection pipe 72 for changing the cold water side path for communicating with each other the second connection pipe 42 for the normal path on the cold water side.

In order to change the path, the present embodiment requires opening and closing of several valves. Since the path changing mechanism using these valves is obvious to those skilled in the art, additional description will be omitted, and the valves (A1 ~ A7 & B1~B4) It will be replaced with the symbol (O,X) indicating whether it is open or closed.

③ Cooling water flow for cooling the cold water and configuration therefor

This embodiment is for the winter season, which enables cooling of the cold water introduced into the sealed heat exchanger 3 with the cooling water contained in the first water tank 113 and the second water tank 123 without using the refrigeration cycle in the winter season. It consists of a cooling water circulation system unit.

The cooling water circulation system unit for winter season includes a first connection pipe 81 for winter season, a second connection pipe 82 for winter season, a third connection pipe 83 for winter season, and a circulation pump 84 .

The first connection pipe 81 for the winter season communicates the first connection pipe 61 for the summer season with the first injector 111 of the first space 11, so that the cooling water is It is made to flow into the first injector 111 side of the first space 11 without allowing it to flow into the connection pipe 61 side.

The second connection pipe 82 for the winter season communicates the first water tank 113 and the second water tank 123 with each other and passes through the first latent heat exchanger 112 in the first space 11 to cool the cooling water. to the second water tank 123 side, and the third connection pipe 83 for the winter season supplies the cooling water in the second water tank 123 to the first water tank 113 and the second water tank 123 . The second water tank 123 and the first connection pipe 61 for summer are communicated so as to be introduced again, and the circulation pump 84 is disposed on the path of the third connection pipe 83 for the winter season. Thus, the cooling water discharged from the second water tank 123 is forcibly pumped to be introduced into the first and second sprayers 111 and 121 again.

In this embodiment having such a configuration, the cold water passing through the heat source load (A) is introduced into the sealed heat exchanger 3 disposed in the second water tank 123 without using a refrigeration cycle, and the second water tank The cooling water cooled by the second latent heat exchanger 122 in 123 directly cools the cold water circulating in the sealed heat exchanger 3, and in the first latent heat exchanger 112 in the first water tank 113 By introducing the cooled cooling water into the second water tank 123, the cooling efficiency can be further improved, so that power consumption reduction and energy use efficiency improvement can be expected.

3) Cooling mechanism of changing seasons

① Operational composition and principle of operation

As well shown in FIG. 8, since the wet bulb temperature is higher in the interseason than in the winter, cooling of the cold water using the cooling water of the cooling tower is only partially possible as in the winter. As described above, since the cold water passing through the heat source load (A) side can be partially cooled using the cooling water of the cooling tower during the changing season, the refrigerating cycle must be repeatedly operated for complete cooling of the cold water.

That is, in the changing season, repeated operation of the refrigeration cycle and partial cooling of cold water by the cooling water of the cooling tower are performed, so that the cooling tower must cool two heat sources: condensed waste heat and high-temperature cold water passing through the heat source load (A). The cooling tower needs a way of operating to treat the different heat sources.

The second latent heat exchanger 122 provided in the second space 12 by allowing cold water passing through the heat source load (A) side to flow primarily to the sealed heat exchanger (3) side in this embodiment in which such an operation method is adopted in the changing seasons. Cooling is made by cooling water that has passed through the cooling water, and the second cooling using the refrigeration cycle is configured to reduce the load on the refrigeration cycle by reducing the use of a compressor, etc., thereby improving energy use efficiency.

On the other hand, in the case of the changing season, the condenser 52 of the refrigeration cycle is cooled using the first latent heat exchanger 112 provided in the first space 11 .

② The flow of cold water used on the heat source load (A) side and the configuration for it

In this embodiment, the cold water passing through the heat source load (A) side in the changing season is firstly cooled by the sealed heat exchanger 3, and secondly cooled by the refrigeration cycle, the cold water side normal path unit and sealed heat exchange It comprises a cold water-side hybrid path unit for selectively fluid movement of the unit (3).

The cold water-side hybrid path unit allows the cold water passing through the heat source load (A) to be introduced into the refrigerating cycle after passing through the sealed heat exchanger (3) without directly moving to the refrigerating cycle side, the cold water side and a connecting pipe 90 for the cold water side hybrid path that communicates the first connecting pipe 41 for the normal path and the second connecting pipe 72 for changing the cold water side path.

The flow of cold water between seasons of this embodiment having such a configuration is as follows.

That is, the high-temperature cold water discharged from the heat source load (A) side is primarily cooled through the sealed heat exchanger (3), and the second connection pipe 72 for changing the cold water side path and the cold water side connecting pipe for the hybrid path ( 90) through the evaporator 51 side of the refrigerating cycle, secondary cooling is made, and then flows into the heat source load (A) side through the second connection pipe 42 for the normal path on the cold water side. Here, the primary cold water cooling by the sealed heat exchanger is performed by the cooling water cooled by the second latent heat exchanger 122 provided in the second space 12 .

As described above, in this embodiment, the cold water used for the heat source load (A) side device that is frequently operated in the changing season is introduced into the sealed heat exchanger 3 side, and the cooling water cooled through the second latent heat exchanger 122 is used. This has the advantage of being able to further improve energy use efficiency by allowing it to be cooled primarily, and secondarily cooled using a refrigeration cycle in which the remaining temperature is operated at about 50% compared to the summer season.

③ Cooling water flow for cooling the condenser of the refrigeration cycle and its configuration

As described above, in the present embodiment, cold water cooling is performed using the cooling water cooled by the second latent heat exchanger 122 provided in the second space 12 , and the first provided in the first space 11 . It is configured to cool the condenser 52 of the refrigeration cycle using the cooling water cooled by the latent heat exchanger 112 .

Therefore, since the cooling water contained in the second water tank 123 of the second space 12 must be introduced into the second injector 121 side again, the circulation pump 84 is operated to supply the second water tank 123 to the second water tank 123 . The contained cooling water is introduced into the second injector 121 side through the third connection pipe 83 for winter season.

As such, in the changing season, the second injector 121 and the second latent heat exchanger 122 located on the second space 12 side are used for cooling the cold water, and for cooling the condenser 52, the second latent heat exchanger 122 is used. is not used and the first latent heat exchanger 112 is used. As described above, this embodiment is configured to perform cold water cooling together with the refrigeration cycle using the configuration disposed in the second space 12 of the case 1, and the first space 11 of the case 1 It is configured to cool the condenser 52 of the refrigeration cycle using the configuration disposed in the refrigeration cycle.

That is, the present embodiment does not use the second injector 121 and the second latent heat exchanger 122 located on the side of the second space 12 in the changing season, but the first injector 111 located on the side of the first space 11 . ) and the first latent heat exchanger 112 only by a cooling water circulation system unit for the changing season that allows cooling of the cooling water passing through the condenser 52 of the refrigeration cycle.

The cooling water circulation unit for changing seasons includes a connecting pipe 95 for changing seasons, one side connected to the first water tank 113 side of the first space 11 and the other side connected to the second connecting pipe 62 for summer season is done by

The flow of cooling water for cooling the condenser between the seasons of this embodiment having such a configuration is as follows.

That is, the high-temperature cooling water discharged from the condenser 52 of the refrigeration cycle passes through the first connection pipe 61 for summer and the first connection pipe 81 for winter, and the first injector 111 in the first space 11 ) and then cooling is performed through the first latent heat exchanger 112 . The cooling water cooled in this way is introduced again into the condenser 52 of the refrigeration cycle via the connecting pipe 95 for the summer season and the second connecting pipe 62 for the summer season.

As described above, the present embodiment is configured to assist cooling of cold water by using the second latent heat exchanger 122 provided in the second space 12 in the changing season, and the first latent heat exchanger 112 provided in the first space 11 . is configured to cool the condenser 52 of the refrigeration cycle using It is configured so that it can be used separately for cooling water cooling and cooling water cooling, so that the advantage of improving cooling efficiency can be expected.

Although various embodiments of the present invention have been described above, this embodiment and the drawings attached to this specification only clearly show a part of the technical idea included in the present invention, and the drawings included in the specification and drawings of the present invention are only clearly shown. It will be apparent that all modifications and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical spirit are included in the scope of the present invention.

1: Case 11: First space
111: first injector 112: first latent heat exchanger
113: 1st tank 12: 2nd space
121: second injector 122: second latent heat exchanger
123: second tank 2: damper
3: Sealed heat exchanger 41: Cold water side first connection pipe for normal path
42: second connection pipe for the normal path on the cold water side 51: evaporator
52: condenser 53: compressor
61: first connector for summer 62: second connector for summer
71: first connection pipe for changing the cold water side path 72: second connection pipe for changing the cold water side path
81: first connector for winter 82: second connector for winter
83: 3rd connection pipe for winter 84: circulation pump
90: Connector for cold water side hybrid path 95: Connector for inter season
97: Blowing fan A: Heat source load
D: bulkhead

Claims (6)

To lower the cooling water for cooling the condenser forming the refrigeration cycle from the first temperature to the second temperature,
It includes a first space and a second space partitioned from each other by a partition wall, and a first water tank and a second water tank are provided below each of the first space and the second space, and each of the first space and the second space On the upper side, cooling water passing through the condenser is introduced, and a first jet and a second jet are provided for spraying the introduced cooling water toward each water tank, and between the first water tank and the first jet, and between the second water tank and the second jet, respectively. is provided with a first latent heat exchanger and a second latent heat exchanger, a blower fan is rotatably installed on the upper side, and an opening is formed in each of the side frame portions forming the four sides to allow air inflow through the four sides, case; and
In summer, one side that allows air to flow into the first space is closed so that only 3 of the 4 sides of the case (which is always open through the opening) are opened, and in winter, all 4 sides of the case are open A pre-cooling cooling tower to which a multi-air flow and water distribution method is applied, characterized in that it includes; a damper that is rotatably installed on a side frame portion forming one side of the case. According to claim 1,
and a closed heat exchanger disposed in the second water tank, the cold water circulating in the refrigerating cycle is introduced, and the cold water introduced therein is cooled directly with the cooling water accommodated in the second water tank and discharged. Pre-cooling cooling tower with air flow and water distribution method. 3. The method of claim 2,
a cold water-side normal path unit for circulating cold water on a refrigerating cycle track to enable cold water cooling through the refrigerating cycle in summer; and
Multiple air flow and water distribution, characterized in that it comprises a; cold water side path change unit that allows cold water passing through the heat source load side to flow into the sealed heat exchanger so that cold water can be cooled without operating the refrigeration cycle in winter Pre-cooling cooling tower with anti-corrosion method 4. The method of claim 3,
The cold water side hybrid path unit for selectively fluid movement between the cold water side normal path unit and the sealed type heat exchanger so that the cold water can be cooled by the sealed heat exchanger while using the refrigeration cycle in different seasons; characterized by further comprising: A pre-cooling cooling tower with multiple air flow and water distribution methods. 3. The method of claim 2,
In summer, the cooling water passing through the condenser of the refrigeration cycle can be cooled only by the second injector and the second latent heat exchanger located on the second space side without using the first injector and the first latent heat exchanger located on the side of the first space. A first connection pipe for summer that communicates with each other the condenser of the refrigeration cycle and the second injector disposed on the upper side of the second space of the case, and a second connection that communicates with the lower side of the second water tank and the evaporator Cooling water circulation system unit for summer including a tube; and
In the winter season, the cooling water contained in the first water tank and the second water tank can be cooled without using the refrigeration cycle, and the first connection pipe for the summer season and the first space of the first space can be cooled. A first connector for winter season that communicates the first sprayer, a second connector for winter that communicates the first and second water tanks with each other, and the cooling water discharged from the second water tank is transferred to the first and second water tanks. A cooling water circulation system for the winter season comprising a third connection pipe for winter season that communicates the second water tank with the first connection pipe for summer season, and a circulation pump disposed on the path of the third connection pipe so that the water can be introduced into the water again. A pre-cooling cooling tower to which a multi-air flow and water distribution method is applied, characterized in that it includes a unit. 6. The method of claim 5,
In the changing season, the cooling water passing through the condenser of the refrigeration cycle can be cooled only by the first injector and the first latent heat exchanger located on the first space side without using the second injector and the second latent heat exchanger located on the side of the second space. A pre-cooling cooling tower to which a multi-air flow and water distribution method is applied, characterized in that it comprises a;

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