JP2013210128A - Cooling system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling system capable of obtaining high cooling capacity with a simple construction by combining a desiccant humidity control device with an indirect evaporative cooling device.SOLUTION: A cooling system includes: an indirect evaporative cooling device 1 including a dry flow passage 11, a wet flow passage 12, which can exchange heat with each other, and a liquid supply means 13, and cooling a gas flowing in the dry flow passage 11 without humidifying the same by drawing heat from the surroundings as evaporation heat when liquid supplied to the wet flow passage 12 is evaporated by a gas flowing in the wet flow passage 12; and a desiccant humidity control device 2 including a moisture absorption flow passage 21, a moisture desorption flow passage 22 and a desiccant rotor 20, and performing moisture absorption to a gas flowing in the moisture absorption flow passage 21 and moisture desorption in the moisture desorption flow passage 22. An inlet of the dry flow passage 11 and an outlet of the wet flow passage 12 are brought in communication with the outdoors, a connection flow passage is connected between an outlet of the dry flow passage 11 and an inlet of the moisture desorption flow passage 22, a connection flow passage is connected between an outlet of the moisture absorption flow passage 21 and an inlet of the wet flow passage 12, and an outlet of the moisture desorption flow passage 22 and an inlet of the moisture absorption flow passage 21 are brought in communication with the interior.

Description

  The present invention relates to a cooling system including an indirect vaporization cooling device and a desiccant humidity control device.

  Two gas channels, a dry channel and a wet channel, that can exchange heat with each other, and liquid supply means provided in the wet channel, are supplied to the wet channel by the gas flowing in the wet channel An indirect evaporative cooling device that cools the gas flowing in the dry flow path without humidification by cooling the gas flowing in the dry flow path by removing heat from the surroundings as the heat of vaporization when the liquid is evaporated is known. (See, for example, Patent Document 1).

  In this indirect evaporative cooling device, the cooling air obtained through the dry flow path is controlled by controlling the flow rate of the gas flowing through the dry flow path and the wet flow path and the flow rate of the liquid supplied to the wet flow path. The temperature was adjusted indirectly, but the error was large.

  In adjusting the temperature of the cooling air obtained through the dry flow path, another method can be considered. That is, in the indirect evaporative cooling device, the lower the humidity of the gas flowing in the wet flow path, the more the evaporation (vaporization) in the wet flow path is promoted, and the heat deprived of the gas flowing in the wet flow path becomes larger. As a result, cooling of the gas flowing through the dry flow path is promoted. For this reason, it is possible to adjust the temperature of the cooling air obtained by circulating the dry flow path by controlling the humidity of the gas flowing into the wet flow path.

  Therefore, the apparatus includes two gas channels, a moisture absorption channel and a moisture release channel, and a desiccant rotor that rotates across the channel, and performs moisture absorption (dehumidification) on the gas flowing through the moisture absorption channel. It is conceivable to combine a desiccant humidity control device (for example, refer to Patent Document 2) that regenerates the desiccant rotor in the moisture discharge channel.

JP 2008-101890 A JP 2008-164203 A

  The present invention was invented in view of the above-described conventional problems, and the object of the present invention is to combine a desiccant humidity control device with an indirect vaporization cooling device, and to provide a cooling system capable of obtaining a high cooling capacity with a simple configuration. The issue is to provide.

In order to solve the above problems, the invention according to claim 1
A liquid supplied to the wet flow path 12 by the gas flowing through the wet flow path 12, comprising a dry flow path 11 and a wet flow path 12 that can exchange heat with each other, and a liquid supply means 13 provided in the wet flow path 12. An indirect evaporative cooling device 1 that cools the gas flowing through the dry flow path 11 without humidification by removing heat from the surroundings as the heat of vaporization when evaporating,
A moisture absorbing channel 21 and a moisture releasing channel 22; a desiccant rotor 20 that rotates between the moisture absorbing channel 21 and the moisture releasing channel 22; and a regenerating means 23 provided in the moisture releasing channel 22. A desiccant humidity control apparatus 2 that performs moisture absorption on the gas flowing through the moisture absorption channel 21 and regenerates the desiccant rotor 20 in the moisture release channel 22;
A cooling system comprising:
The inlet of the dry flow channel 11 and the outlet of the wet flow channel 12 are communicated with the outdoors,
Connecting a connection channel between the outlet of the dry channel 11 and the inlet of the moisture release channel 22;
Connecting a connection channel between the outlet of the moisture absorption channel 21 and the inlet of the moisture channel 12;
The outlet of the moisture discharge channel 22 and the inlet of the moisture absorption channel 21 are communicated indoors.

The invention according to claim 2
A liquid supplied to the wet flow path 12 by the gas flowing through the wet flow path 12, comprising a dry flow path 11 and a wet flow path 12 that can exchange heat with each other, and a liquid supply means 13 provided in the wet flow path 12. An indirect evaporative cooling device 1 that cools the gas flowing through the dry flow path 11 without humidification by removing heat from the surroundings as the heat of vaporization when evaporating,
A moisture absorbing channel 21 and a moisture releasing channel 22; a desiccant rotor 20 that rotates between the moisture absorbing channel 21 and the moisture releasing channel 22; and a regenerating means 23 provided in the moisture releasing channel 22. A desiccant humidity control apparatus 2 that performs moisture absorption on the gas flowing through the moisture absorption channel 21 and regenerates the desiccant rotor 20 in the moisture release channel 22;
A cooling system comprising:
The inlet of the dry flow channel 11 and the outlet of the wet flow channel 12 are communicated with the outdoors,
Let the outlet of the dry channel 11 communicate indoors,
Connecting a connection channel between the outlet of the moisture absorption channel 21 and the inlet of the moisture channel 12;
Let the outlet of the moisture release channel 22 communicate with the outdoors,
The entrance of the moisture absorption channel 21 is communicated indoors,
The inlet of the moisture release channel 22 is communicated indoors or outdoors.

  In the cooling system of the present invention, the desiccant humidity control device is combined with the indirect vaporization cooling device, and a high cooling capacity can be obtained with a simple configuration.

It is a schematic block diagram of 1st embodiment of this invention. It is a schematic block diagram of 2nd embodiment of this invention. It is a schematic block diagram of 3rd embodiment of this invention. It is a flowchart explaining a driving | operation. It is a flowchart explaining a part of driving | operation.

  Hereinafter, a description will be given based on an embodiment of the present invention. First, an indirect vaporization cooling device and a desiccant humidity control device will be described.

  The indirect evaporative cooling device includes two flow paths, a dry flow path and a wet flow path, and performs heat exchange between the flow paths. A heat conductive member is interposed between the dry flow channel and the wet flow channel, and heat exchange is performed between the gas flowing through each flow channel by the heat conductive member. The wet flow path is provided with a liquid supply means and a liquid holding means. The liquid is supplied by the liquid supply means, and the supplied liquid is held by the liquid holding means. In the liquid holding means, the liquid is held so as to be in direct contact with the gas flowing in the wet flow path.

  In this indirect evaporative cooling device, a gas to be cooled is circulated in the dry flow path, and a gas having a relative humidity of less than 100% is circulated in the wet flow path. The lower the relative humidity of this gas is, the better. Is. When the gas supplied to the liquid holding unit is held by the liquid holding unit and the gas flows through the dry channel and the wet channel, the liquid held by the liquid holding unit in the wet channel is It is vaporized by the gas flowing through the wet channel. At this time, when the liquid held in the liquid holding means evaporates, the gas flowing through the dry flow path is cooled by removing heat from the surroundings as the heat of vaporization. Thereby, the gas flowing through the dry flow path is cooled without being humidified.

  Although what was described in patent document 1 can be utilized as an indirect vaporization cooling device, it is not specifically limited to this. A specific example of the indirect evaporative cooling device will be schematically described. In this example, the cellulosic paper is placed on the wet flow channel side in a partition in which the dry flow channel and the wet flow channel are bonded to the cellulosic paper with a synthetic resin film having no air permeability and heat conductivity. Partition to face. Cellulosic paper functions as a liquid holding means, and a synthetic resin film functions as a heat conductive member. In this case, the heat deprived of the gas flowing through the dry flow path when the liquid evaporates is mainly caused by the liquid held on the dry flow path side of the wet flow path directly from the dry flow path as the heat of vaporization. However, when the liquid evaporates, heat is taken away from the wet flow path to lower the temperature of the wet flow path, and there is also heat taken away by this.

  The liquid supply means includes a tube, a pump, drive means such as a motor that drives the pump, a control unit that includes a microcomputer that controls the drive means, and a liquid storage part such as a tank. One end of the tube is connected to the liquid storage part, and the other end of the tube is disposed near the cellulosic paper in the wet flow path.

  The dry flow channel and the wet flow channel are alternately stacked, and the inlet and the outlet of each dry flow channel, and the inlet and the outlet of each wet flow channel are integrated into one inlet and an outlet, respectively.

  Air blowing means is provided in each of the dry flow path and the wet flow path. The blowing unit includes a fan, a driving unit such as a motor that drives the fan, and a control unit that includes a microcomputer that controls the driving unit.

  By controlling the flow rate of the gas flowing through the dry flow channel and the wet flow channel and the flow rate of the liquid supplied to the wet flow channel by the control unit, the amount and temperature of the cooling air obtained by flowing through the dry flow channel are to some extent It is adjustable.

  Moreover, when the vapor | steam in the gas which flows through a moisture flow path condenses and becomes a liquid, the discharge means which discharges this liquid is provided. As this discharging means, a means that includes a pipe or the like that becomes a flow path that communicates the wet flow path and the outside and has a check valve or a pump in the middle is used, but is not particularly limited.

  In addition, the above indirect vaporization cooling apparatus is an example, and is not limited to this. Further, water is preferably used as the liquid, but other liquids may be used. In this case, a highly volatile liquid is preferable. In addition, air is preferably used as the gas flowing through the dry flow path and the wet flow path, but is not particularly limited.

  The desiccant humidity control apparatus includes two channels including a moisture release channel and a moisture absorption channel, a desiccant rotor that rotates between the channels, a driving unit such as a motor that drives the desiccant rotor, and a driving unit. And a control unit composed of a microcomputer or the like that controls moisture, absorbs moisture from the gas flowing in the moisture absorption channel, and releases moisture from the gas flowing in the moisture release channel. The desiccant rotor is usually disk-shaped and has air permeability in the direction of its central axis (rotating axis). The desiccant rotor is not limited to a disk shape. A moisture absorbent (desiccant) is carried on the surface of the desiccant rotor. Further, the moisture discharge passage is provided with a regenerating means including a heating means for regenerating the desiccant rotor on the upstream side of the desiccant rotor. Examples of the heating means (regeneration means) include a gas-liquid heat exchanger, a heat medium, a circulation path, a pump, a driving means such as a motor that drives the pump, and a heating unit such as a gas burner that heats the heat medium. Are preferably used, but are not particularly limited, and may be an electric heater or the like.

  The two flow paths are respectively provided with air blowing means. The blowing unit includes a fan, a driving unit such as a motor that drives the fan, and a control unit including a microcomputer that controls the driving unit.

  In addition to the above, a sensible heat exchange rotor that rotates across the two flow paths, a drive unit such as a motor that drives the sensible heat exchange rotor, and a control unit that includes a microcomputer that controls the drive unit, May be provided. The sensible heat exchange rotor rotates so as to straddle the portion of the moisture absorption channel upstream of the desiccant rotor and the portion of the moisture release channel downstream of the desiccant rotor. Further, instead of the sensible heat exchange rotor, a general heat exchanger that partitions the two flow paths with a heat conductive member interposed therebetween may be provided.

  This desiccant humidity control device distributes the gas to be dehumidified through the moisture absorption channel, and when the gas to be dehumidified passes through the desiccant rotor, the liquid vapor is absorbed by the moisture absorbent and flows out as dehumidified gas. To do. In the moisture discharge channel, the desiccant rotor is heated by the regeneration means (heating means), and when the gas passes through the desiccant rotor, the desiccant rotor releases the liquid absorbed by the moisture absorbent as vapor into the gas and absorbs moisture. The material is regenerated.

  In addition, when a sensible heat exchange rotor is provided, by rotating the sensible heat exchange rotor, heat is taken away from the gas flowing out from the moisture discharge passage and is also dissipated to the gas flowing into the moisture absorption passage. Recovery is performed. The same applies to a general heat exchanger instead of a sensible heat exchange rotor.

  The amount of dehumidified gas flowing out from the moisture absorption channel by controlling the flow rate of the gas flowing through the moisture absorption channel and the moisture release channel, the amount of heating by the heating means, and, in some cases, the rotational speed of the desiccant rotor by the control unit. The humidity is adjustable.

  In addition, the above desiccant humidity control apparatus is an example, and is not limited to this.

  Hereinafter, a first embodiment of the cooling system of the present invention will be described with reference to FIG.

  The dry flow path 11 and the wet flow path 12 of the indirect vaporization cooling device 1 and the moisture absorption flow path 21 and the moisture discharge flow path 22 of the desiccant humidity control device 2 have a fixed blowing direction by the blowing means, and the inlet and the outlet are fixed. ing. The wet flow path 12 is provided with a liquid supply means 13, a liquid holding means (not shown) and a discharge means 14 in the middle of the flow path, and a temperature sensor 15 is provided at the outlet. A regeneration means 23 is provided in the moisture discharge channel 22.

  In this embodiment, a gas-liquid heat exchanger is used as the regeneration means 23, and includes a heat medium, a circulation path, a pump, driving means such as a motor for driving the pump, a gas burner for heating the heat medium, and the like. A heat source. As the heat source and the heat medium, a heat source and a heat medium such as another hot water heating system are preferably used, and a heat medium having a predetermined temperature (for example, 80 ° C.) can be used. In this case, in order to control the amount of heat supplied through the gas-liquid heat exchanger of the regeneration means 23, the ratio of the time for which the heat medium flowing through the gas-liquid heat exchanger is flowed, that is, the heat medium for the entire time is set So-called duty control is performed to change the ratio of time for circulation (= duty ratio). A plurality of stages with different duty ratios are prepared for the required heat medium level.

  Further, the heat exchanger 24 enables heat exchange between the portion of the moisture absorption channel 21 on the downstream side of the desiccant rotor 20 and the portion of the moisture release channel 22 on the upstream side of the desiccant rotor 20 by a heat conductive member. However, the heat exchanger 24 has an arbitrary configuration.

  Further, the air conditioning cooling apparatus 1 and the desiccant humidity control apparatus 2 are configured by a microcomputer, and a control unit for the entire cooling system is provided which instructs supply of a heat medium to another hot water heating system. . An operation unit is provided for starting / stopping the operation of the cooling system, setting the cooling level (for example, target temperature due to strong, medium, weak, etc.) and setting the target temperature directly.

  Connected to the inlet of the dry flow path 11 is an outdoor air intake flow path 31 whose tip is an atmospheric open end communicating with the outdoor air.

  Connected to the outlet of the wet flow path 12 is an outdoor air communication flow path 32 whose tip is an open air end communicating with the outdoor air.

  A connection channel 33 is connected between the outlet of the dry channel 11 and the inlet of the moisture release channel 22, and a connection channel 34 is connected between the outlet of the moisture absorption channel 21 and the inlet of the moisture channel 12. Connected.

  Connected to the outlet of the moisture discharge channel 22 is an indoor air communication channel 35 whose tip is communicated with the indoor space and serves as an open air open end. The inlet of the moisture absorption channel 21 is connected to the indoor air whose tip communicates with the indoor space. An inside air intake passage 36 serving as an open end is connected.

  The outside air flows into the dry flow path 11 via the external air intake flow path 31 and is cooled without being humidified by the indirect vaporization cooling device 1, and the moisture release flow path of the desiccant humidity control device 2 via the connection flow path 33. 22 flows in. Then, the moisture is released when passing through the desiccant rotor 20, and when there is a heat exchanger 24, it is cooled when passing through the heat exchanger 24, and is supplied indoors through the inside air communication channel 35.

  The inside air flows into the moisture absorption passage 21 of the desiccant humidity control device 2 via the inside air suction passage 36, and is absorbed and becomes low humidity when passing through the desiccant rotor 20, and indirectly vaporized and cooled via the connection passage 34. It flows into the wet flow path 12 of the device 1. The gas having low humidity contains water vapor generated by vaporization of the water held by the water holding means when passing through the wet flow channel 12, and the outdoor gas passes through the outdoor air communication flow channel 32. Is discharged.

  The operation in the first embodiment will be described with reference to FIG. When the operation is started (S1), the control unit sets a target temperature T0 (a target temperature that is set when the target temperature is set directly) corresponding to the set cooling level (S2).

  The operation of the indirect evaporative cooling device 1 is started, the air blowing means is operated, and the liquid supply means 13 and the discharge means 14 are operated (S3). The operation of the desiccant humidity control device 2 is started, a desired heat medium is requested to the hot water heating system, and the desiccant rotor 20 is operated (S4).

  It is determined whether or not the predetermined time Ti has elapsed since (S4) was executed (S5). If the predetermined time Ti has not elapsed, (S5) is executed again, and the predetermined time Ti has elapsed. If so, the temperature t1 at the outlet of the wet flow path 12 is detected by the temperature sensor 15 (S6). Then, the temperature t1 is compared with the target temperature T0 (S7). If the temperature t1 is higher than the target temperature T0, the required level of the heat medium is increased by one step (S8). The required level of the heat medium starts from a low level (small duty ratio) among a plurality of levels and is increased step by step. By increasing the heat medium requirement level, the moisture release amount from the desiccant rotor 20 in the moisture release passage 22 increases and the moisture absorption amount in the moisture absorption passage 21 increases. Along with this, the humidity of the gas flowing into the wet flow path 12 decreases, the amount of heat taken away by the gas flowing through the dry flow path 11 increases, and the temperature decreases.

  When (S8) is executed, the process returns to (S5), and it is determined whether or not a predetermined time Ti has elapsed since (S8) was executed.

  When the temperature t1 is equal to or lower than the target temperature T0 in (S7), it is determined whether or not the predetermined time Ti has elapsed since (S7) was executed (S9), and the predetermined time Ti has not elapsed. (S9) is executed again, and when the predetermined time Ti has elapsed, the temperature t2 at the outlet of the wet flow path 12 is detected by the temperature sensor 15 (S10). Then, the temperature t2 is compared with the temperature t1 (S11), and when the temperature t2 is lower than the temperature t1, the required level of the heat medium is lowered by one level (S12). By lowering the heat medium requirement level, the amount of heat taken away by the gas flowing through the dry flow path 11 is reduced and the temperature rises. When (S12) is executed, the process returns to (S5), and it is determined whether or not a predetermined time Ti has elapsed since (S12) was executed. Thereafter, this flow is repeated until the operation is stopped.

  Further, instead of step (S5), routines (S21) to (S24) shown in FIG. 5 may be executed. This detects the temperature t1 at the outlet of the wet flow path 12 by the temperature sensor 15 (S21). Then, it is determined whether or not the predetermined time Ti1 has elapsed since (S12) was executed (S22). If the predetermined time Ti1 has not elapsed, (S21) is executed again and the predetermined time Ti1 has elapsed. If so, the temperature t2 at the outlet of the wet flow path 12 is detected by the temperature sensor 15 (S23). Then, the absolute value of the difference between the temperature t2 and the temperature t1 is compared with the threshold value d (S24). If the absolute value of the difference between the temperature t2 and the temperature t1 is larger than the threshold value d, (S21) is again performed. If the absolute value of the difference between the temperature t2 and the temperature t1 is less than or equal to the threshold value d, this routine is terminated and the process proceeds to step (S6).

  In addition, the said driving | operation is an example and is not specifically limited.

  In the first embodiment, the air is ventilated mainly in summer, and the outside air taken in is cooled and supplied. At this time, the humidity of the gas flowing into the wet flow path 12 is lowered, vaporization in the wet flow path 12 is promoted, the cooling capacity of the gas flowing through the dry flow path 11 is improved, and a high cooling capacity is obtained. It is.

  Next, a second embodiment will be described based on FIG. In the second embodiment, the indirect evaporative cooling device 1 and the desiccant humidity control device 2 are the same as those in the first embodiment, and a part of the flow path configuration is different. The description will be omitted, and different parts will be described.

  The outlet of the dry channel 11 is connected to an indoor air communication channel 37 whose tip is an open air end communicating with an indoor space, and the outlet of the dry channel 11 communicates indoors via the indoor air communication channel 37. ing.

  The inlet of the moisture release channel 22 is connected to the other end of the inside air suction channel 38, one end of which is connected to the room air suction channel 36, and the inlet of the moisture release channel 22 is connected to the inside air suction channel 36 and the room air suction channel. 38 is communicated indoors. In addition, the front end of the inside air intake channel 38 may be an inside air open end that communicates with the indoor space.

  The outlet of the moisture release channel 22 is connected to the other end of the outside air communication channel 39 whose one end is connected to the outside air communication channel 32, and the outlet of the moisture release channel 22 is connected to the outside air communication channel 39 and the outside air communication flow. The road 32 communicates with the outdoors. In addition, the front-end | tip of the external air communication flow path 39 may be an open-air open end which communicates with the outdoor space.

  Outside air flows into the dry flow path 11 via the external air intake flow path 31, is cooled without being humidified by the indirect vaporization cooling device 1, and is supplied indoors via the connection flow path 37.

  A portion of the inside air flows into the moisture absorption passage 21 of the desiccant humidity control device 2 through the inside air intake passage 36 and is absorbed by the moisture when passing through the desiccant rotor 20. It flows into the wet flow path 12 of the indirect evaporative cooling device 1. The gas having low humidity contains water vapor generated by vaporization of the water held by the water holding means when passing through the wet flow channel 12, and the outdoor gas passes through the outdoor air communication flow channel 32. Is discharged.

  In addition, the remainder of the inside air sucked through the inside air suction channel 36 flows into the moisture release channel 22 of the desiccant humidity control apparatus 2. And when it passes through the desiccant rotor 20, it is dehumidified, and when there is a heat exchanger 24, it is cooled when it passes through the heat exchanger 24, and is outdoors through the outside air communication channel 39 and the outside air communication channel 32. Is discharged.

  In the second embodiment, the air is ventilated mainly in summer and the outside air to be taken in is cooled and supplied. At this time, the humidity of the gas flowing into the wet flow path 12 is lowered, vaporization in the wet flow path 12 is promoted, the cooling capacity of the gas flowing through the dry flow path 11 is improved, and a high cooling capacity is obtained. It is. Furthermore, in the first embodiment, the gas released when passing through the desiccant rotor 20 is supplied indoors, whereas in the second embodiment, the gas passes through the desiccant rotor 20 and is released. Only the gas cooled without being humidified by the indirect evaporative cooling device 1 without being moistened is supplied indoors, and an increase in humidity can be suppressed.

  Next, a third embodiment will be described based on FIG. In the third embodiment, the indirect evaporative cooling device 1 and the desiccant humidity control device 2 are the same as those in the second embodiment, and part of the flow path configuration is different. The description will be omitted, and different parts from the second embodiment will be described.

  The other end of the outside air suction channel 40 whose one end is connected to the outside air suction channel 31 is connected to the inlet of the moisture release channel 22, and the inlet of the moisture release channel 22 is the outside air suction channel 40 and the outside air suction channel. 31 communicates with the outdoors. In addition, the front-end | tip of the external air intake flow path 40 may be an open-air open end which communicates with the outdoor space.

  A part of the outside air flows into the dry passage 11 through the outside air intake passage 31, is cooled without being humidified by the indirect evaporative cooling device 1, and is supplied indoors through the connection passage 37.

  The inside air flows into the moisture absorption passage 21 of the desiccant humidity control device 2 via the inside air suction passage 36, and is absorbed and becomes low humidity when passing through the desiccant rotor 20, and indirectly vaporized and cooled via the connection passage 34. It flows into the wet flow path 12 of the device 1. The gas having low humidity contains water vapor generated by vaporization of the water held by the water holding means when passing through the wet flow channel 12, and the outdoor gas passes through the outdoor air communication flow channel 32. Is discharged.

  Further, the remainder of the outside air sucked through the outside air suction channel 31 flows into the moisture release channel 22 of the desiccant humidity control device 2. And when it passes through the desiccant rotor 20, it is dehumidified, and when there is a heat exchanger 24, it is cooled when it passes through the heat exchanger 24, and is outdoors through the outside air communication channel 39 and the outside air communication channel 32. Is discharged.

  In the third embodiment, the air is ventilated mainly in summer and the outside air to be taken in is cooled and supplied. At this time, the humidity of the gas flowing into the wet flow path 12 is lowered, vaporization in the wet flow path 12 is promoted, the cooling capacity of the gas flowing through the dry flow path 11 is improved, and a high cooling capacity is obtained. It is. Furthermore, in the first embodiment, the gas released when passing through the desiccant rotor 20 was supplied indoors, whereas in the third embodiment, as in the second embodiment, Only the gas cooled without being humidified by the indirect evaporative cooling device 1 without being dehumidified through the desiccant rotor 20 is supplied indoors, and an increase in humidity can be suppressed.

DESCRIPTION OF SYMBOLS 1 Indirect vaporization cooling device 11 Dry flow path 12 Wet flow path 13 Liquid supply means 14 Discharge means 15 Temperature sensor 2 Desiccant humidity control apparatus 20 Desiccant rotor 21 Hygroscopic flow path 22 Humidity release flow path 23 Regeneration means 24 Heat exchanger 31 Outside air intake Channel 32 Outside air communication channel 33 to 34 Connection channel 35 Inside air communication channel 36 Inside air suction channel 37 Inside air communication channel 38 Inside air suction channel 39 Outside air communication channel 40 Outside air suction channel

Claims (2)

A dry flow channel and a wet flow channel capable of exchanging heat with each other; and a liquid supply means provided in the wet flow channel, and the liquid supplied to the wet flow channel evaporates by the gas flowing through the wet flow channel. Indirect evaporative cooling device that cools without humidifying the gas flowing through the dry flow path by taking heat from the surroundings as heat of vaporization,
A moisture absorption channel, a moisture release channel, a desiccant rotor that rotates between the moisture absorption channel and the moisture release channel, and a regenerating unit provided in the moisture release channel, the moisture absorption flow A desiccant humidity control device that absorbs moisture in the gas flowing through the path and regenerates the desiccant rotor in the moisture release channel;
A cooling system comprising:
Communicating the inlet of the dry channel and the outlet of the wet channel to the outside,
Connecting a connection channel between the outlet of the dry channel and the inlet of the moisture release channel;
Connecting a connection channel between the outlet of the moisture absorption channel and the inlet of the moisture channel;
A cooling system, wherein an outlet of the moisture release channel and an inlet of the moisture absorption channel are communicated indoors. A dry flow channel and a wet flow channel capable of exchanging heat with each other; and a liquid supply means provided in the wet flow channel, and the liquid supplied to the wet flow channel evaporates by the gas flowing through the wet flow channel. Indirect evaporative cooling device that cools without humidifying the gas flowing through the dry flow path by taking heat from the surroundings as heat of vaporization,
A moisture absorption channel, a moisture release channel, a desiccant rotor that rotates between the moisture absorption channel and the moisture release channel, and a regenerating unit provided in the moisture release channel, the moisture absorption flow A desiccant humidity control device that absorbs moisture in the gas flowing through the path and regenerates the desiccant rotor in the moisture release channel;
A cooling system comprising:
Communicating the inlet of the dry channel and the outlet of the wet channel to the outside,
Let the outlet of the dry channel communicate indoors;
Connecting a connection channel between the outlet of the moisture absorption channel and the inlet of the moisture channel;
Let the outlet of the moisture release channel communicate with the outdoors,
Let the inlet of the moisture absorption channel communicate indoors;
A cooling system, wherein the inlet of the moisture release channel is communicated indoors or outdoors.

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