JP2013210130A - Cooling dehumidification system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling dehumidification system capable of performing optionally cooling, dehumidification, or cooling and dehumidification.SOLUTION: A cooling dehumidification system includes: an indirect evaporative cooling device 1 including a dry flow passage 11, a wet flow passage 12 and a liquid supply means 13; and a desiccant humidity control device 2 including a desiccant rotor 20, a first flow passage 21, a second flow passage 22 and regeneration means 23, 24. There are connected an outside air intake flow passage 31 including a three-way switching means 51, an outside air communication flow passage 32 including a three-way switching means 52, a connection flow passage 33 including a four-way switching means 53 and a three-way switching means 54, a connection flow passage 34 including three-way switching means 55, 56, an inside air communication flow passage 35 including three-way switching means 57, 58, an inside air intake flow passage 36 including three-way switching means 59, 60, a connection flow passage 37, a connection flow passage 38 including a three-way switching means 61, a connection flow passage 39, a connection flow passage 40 including a three-way switching means 62, a connection flow passage 41, and a connection flow passage 42 including a three-way switching means 63, and a connection flow passage 43.

Description

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

  Two gas channels, a dry channel and a wet channel, capable of exchanging heat with each other, and a liquid supply means provided in the wet channel, and the gas flowing through the wet channel is supplied to the wet channel 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 vaporized Is known (see, for example, Patent Document 1).

  In addition, the gas flow path includes two gas flow paths and a desiccant rotor that rotates between the flow paths, and performs moisture absorption (dehumidification) on the gas flowing in one flow path, and the desiccant rotor in the other flow path. There is known a desiccant humidity control apparatus that performs regeneration of the above (see, for example, Patent Document 2).

JP 2008-101890 A JP 2008-164203 A

  There is a demand for a cooling and dehumidifying system that includes an indirect vaporization cooling device and a desiccant humidity control device with a simple configuration and can arbitrarily perform cooling, dehumidification, cooling and dehumidification.

  The present invention was invented in view of the above-described conventional problems, and the object thereof is to include an indirect vaporization cooling device and a desiccant humidity control device, and to arbitrarily perform cooling, dehumidification, cooling and dehumidification. An object of the present invention is to provide a cooling and dehumidifying system that can be performed.

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,
The first flow path 21 and the second flow path 22, the desiccant rotor 20 rotating between the first flow path 21 and the second flow path 22, the first flow path 21 and the second flow path Regenerating means 23, 24 provided in each of the flow paths 22, and absorbs moisture in the gas flowing in one of the first flow path 21 and the second flow path 22, and A desiccant humidity control device 2 for regenerating the desiccant rotor 20 in the flow path;
A cooling and dehumidifying system comprising:
An outside air suction channel 31 whose tip is connected to the outdoor atmosphere is connected to the inlet of the dry channel 11, and a three-way switching means 51 is provided in the middle of the outside air suction channel 31.
An outside air communication channel 32 whose end is communicated with the outdoor atmosphere is connected to the outlet of the wet channel 12, and a three-way switching means 52 is provided in the middle of the outside air communication channel 32.
A connection flow path 33 is connected between the outlet of the dry flow path 11 and the inlet of the first flow path 21, and the four-way switching means 53 is arranged in the middle of the connection flow path 33 from the outlet side of the dry flow path 11. Three-way switching means 54 is provided in series,
A connection flow path 34 is connected between the outlet of the second flow path 22 and the inlet of the wet flow path 12, and the three-way switching means in this connection flow path 34 in order from the outlet side of the second flow path 22. 55 and three-way switching means 56 are provided,
Connected to the outlet of the first channel 21 is an inside air communication channel 35 whose tip is communicated with an indoor space and serves as an open end of the inside air, and the outlet of the first channel 21 is provided in the middle of the inside air communication channel 35. Three-way switching means 57 and three-way switching means 58 are provided in order from the side,
Connected to the inlet of the second flow path 22 is an internal air intake flow path 36, which is an open end of the internal air that communicates with the indoor space. Three-way switching is performed in the middle of the internal air intake flow path 36 from the open side of the internal air. Means 59 and three-way switching means 60 are provided,
A connection flow path 37 is connected between the four-way switching means 53 and the three-way switching means 60 on the inlet side of the second flow path 22 of the inside air suction flow path 36.
Three-way switching means 54 on the inlet side of the first flow path 21 of the connection flow path 33 connected between the outlet of the dry flow path 11 and the inlet of the first flow path 21, and the internal air of the internal air suction flow path 36 A connection flow path 38 is connected between the open end side three-way switching means 59, a three-way switching means 61 is provided in the middle of the connection flow path 38, and in the middle of the three-way switching means 61 and the outside air intake flow path 31. A connection flow path 39 is connected between the three-way switching means 51 provided,
The three-way switching means 56 on the inlet side of the wet flow path 12 of the connection flow path 34 connected between the outlet of the second flow path 22 and the inlet of the wet flow path 12, and the first of the inside air communication flow path 35 A connection flow path 40 is connected between the three-way switching means 57 on the outlet side of the flow path 21, and a three-way switching means 62 is provided in the middle of the connection flow path 40, and the three-way switching means 62 and the outside air communication flow path 32. The connection flow path 41 is connected between the three-way switching means 52 provided in the middle of
Three-way switching means 55 on the outlet side of the second flow path 22 of the connection flow path 34 connected between the outlet of the second flow path 22 and the inlet of the wet flow path 12, and the internal air of the internal air communication flow path 35 A connection flow path 42 is connected to the open end side three-way switching means 58, and a three-way switching means 63 is provided in the middle of the connection flow path 42, and between the three-way switching means 63 and the four-way switching means 53. A connection channel 43 is connected.

The invention according to claim 2 is the invention according to claim 1,
Switching the three-way switching means 51 provided in the middle so that the inside of the outside air intake passage 31 is communicated over the entire length,
Switching the three-way switching means 52 provided in the middle so that the inside of the outside air communication channel 32 communicates over the entire length,
A four-way switching means 53 and a three-way switching means provided in the middle of the connection flow path 33 connected between the outlet of the dry flow path 11 and the inlet of the first flow path 21 so as to communicate the entire length. 54,
A three-way switching means 55 and a three-way switching means provided in the middle of the connection flow path 34 connected between the outlet of the second flow path 22 and the inlet of the wet flow path 12 so as to communicate with each other over the entire length. Switch 56,
Switching the three-way switching means 57 and the three-way switching means 58 provided in the middle so that the inside air communication flow path 35 connected to the outlet of the first flow path 21 communicates over the entire length,
The three-way switching means 59 and the three-way switching means 60 are switched so that the inside air suction flow path 36 connected to the inlet of the second flow path 22 communicates over the entire length to form a flow path,
Operate the liquid supply means 13 of the indirect evaporative cooling device 1,
The desiccant humidity control apparatus 2 is operated without operating the desiccant rotor 20 and the regeneration means 23 and 24.

The invention according to claim 3 is the invention according to claim 1,
Switching the three-way switching means 51 provided in the middle so that the inside of the outside air intake passage 31 is communicated over the entire length,
Switching the three-way switching means 52 provided in the middle so that the inside of the outside air communication channel 32 communicates over the entire length,
A four-way switching means 53 and a three-way switching means provided in the middle of the connection flow path 33 connected between the outlet of the dry flow path 11 and the inlet of the first flow path 21 so as to communicate the entire length. 54,
A three-way switching means 55 and a three-way switching means provided in the middle of the connection flow path 34 connected between the outlet of the second flow path 22 and the inlet of the wet flow path 12 so as to communicate with each other over the entire length. Switch 56,
Switching the three-way switching means 57 and the three-way switching means 58 provided in the middle so that the inside air communication flow path 35 connected to the outlet of the first flow path 21 communicates over the entire length,
The three-way switching means 59 and the three-way switching means 60 are switched so that the inside air suction flow path 36 connected to the inlet of the second flow path 22 communicates over the entire length to form a flow path,
Operate the liquid supply means 13 of the indirect evaporative cooling device 1,
The desiccant rotor 20 of the desiccant humidity control apparatus 2 and the regeneration means 24 of the second flow path 22 are operated to operate.

The invention according to claim 4 is the invention according to claim 1,
Switching the three-way switching means 51 provided in the middle so that the inside of the outside air intake passage 31 is communicated over the entire length,
Switching the three-way switching means 52 provided in the middle so that the inside of the outside air communication channel 32 communicates over the entire length,
A four-way switching means 53 and a three-way switching means provided in the middle of the connection flow path 33 connected between the outlet of the dry flow path 11 and the inlet of the first flow path 21 so as to communicate the entire length. 54,
A three-way switching means 55 and a three-way switching means provided in the middle of the connection flow path 34 connected between the outlet of the second flow path 22 and the inlet of the wet flow path 12 so as to communicate with each other over the entire length. Switch 56,
Switching the three-way switching means 57 and the three-way switching means 58 provided in the middle so that the inside air communication flow path 35 connected to the outlet of the first flow path 21 communicates over the entire length,
The three-way switching means 59 and the three-way switching means 60 are switched so that the inside air suction flow path 36 connected to the inlet of the second flow path 22 communicates over the entire length to form a flow path,
Without operating the liquid supply means 13 of the indirect evaporative cooling device 1,
The desiccant humidity control apparatus 2 is operated without operating the desiccant rotor 20 and the regeneration means 23 and 24.

The invention according to claim 5 is the invention according to claim 1,
Switching the three-way switching means 51 provided in the middle so that the inside of the outside air intake passage 31 is communicated over the entire length,
Switching the three-way switching means 52 provided in the middle so that the inside of the outside air communication channel 32 communicates over the entire length,
A four-way switching means 53 and a three-way switching means provided in the middle of the connection flow path 33 connected between the outlet of the dry flow path 11 and the inlet of the first flow path 21 so as to communicate the entire length. 54,
A three-way switching means 55 and a three-way switching means provided in the middle of the connection flow path 34 connected between the outlet of the second flow path 22 and the inlet of the wet flow path 12 so as to communicate with each other over the entire length. Switch 56,
Switching the three-way switching means 57 and the three-way switching means 58 provided in the middle so that the inside air communication flow path 35 connected to the outlet of the first flow path 21 communicates over the entire length,
The three-way switching means 59 and the three-way switching means 60 are switched so that the inside air suction flow path 36 connected to the inlet of the second flow path 22 communicates over the entire length to form a flow path,
The desiccant rotor 20 of the desiccant humidity control apparatus 2 and the regeneration means 23 of the first flow path 21 are operated to operate.

  In the cooling and dehumidifying system of the present invention, it is possible to arbitrarily perform cooling, dehumidification, cooling and dehumidification.

It is a schematic block diagram of one Embodiment of this invention. It is a figure explaining the flow of the gas in the case of the 1st operation mode. It is a figure explaining the flow of the gas in the case of the 2nd operation mode. It is a figure explaining the flow of the gas in the case of the 3rd operation mode. It is a figure explaining the flow of the gas in the case of the 4th operation mode. It is a figure explaining the flow of the gas in the case of the 5th operation mode. It is a figure explaining the flow of the gas in the case of the 6th operation mode. It is a figure explaining the flow of the gas in the case of the 7th operation mode. It is a figure explaining the flow of the gas in the case of the 8th operation mode. It is a figure explaining the flow of the gas in the case of the 9th operation mode. It is a figure explaining the flow of the gas in the 10th operation mode.

  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 in the liquid holding unit 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 heat flowing from the surroundings is removed as the heat of vaporization, whereby the gas flowing through the dry flow path is also cooled. 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, and separate gases may flow through the dry flow path and the wet flow path.

  The desiccant humidity control apparatus includes two flow paths, a desiccant rotor that rotates between the flow paths, a drive unit such as a motor that drives the desiccant rotor, and a control unit that includes a microcomputer that controls the drive unit. , And performs moisture absorption on the gas flowing in one flow path and releases the moisture on the gas flowing in the other flow path. 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 other flow path is provided with a regenerating means comprising 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 exchanging rotor rotates so as to straddle a portion upstream of the desiccant rotor in one channel and a portion downstream of the desiccant rotor in the other channel. 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 apparatus distributes the gas to be dehumidified through one flow path, and when the gas to be dehumidified passes through the desiccant rotor, the liquid vapor is absorbed by the moisture absorbent and becomes a dehumidified gas. leak. In the other 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 hygroscopic material as vapor into the gas and absorbs moisture. The material is regenerated.

  If a sensible heat exchange rotor is provided, rotating the sensible heat exchange rotor removes heat from the gas flowing out from the other flow path and dissipates heat to the gas flowing into one flow path, Is collected. The same applies to a general heat exchanger instead of a sensible heat exchange rotor.

  The dehumidified gas flowing out from one channel by controlling the flow rate of the gas flowing through one channel and the other 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 amount and humidity can be adjusted.

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

  Hereinafter, the cooling dehumidification system of this invention is demonstrated based on FIG.

  The dry flow path 11 and the wet flow path 12 of the indirect evaporative cooling apparatus 1 and the first flow path 21 and the second flow path 22 of the desiccant humidity control apparatus 2 have a blowing direction determined by the blowing means, and an inlet and an outlet Is fixed. Regenerating means 23 and 24 are provided in the first channel 21 and the second channel 22, respectively. Further, heat that allows heat exchange between the downstream portion of the first passage 21 and the upstream portion of the desiccant rotor 20 of the second passage 22 by the heat conductive member. An exchanger 25 is provided.

  The inlet of the dry channel 11 is connected to an outside air suction channel 31 whose tip is connected to the outdoor atmosphere, and an three-way switching means 51 is provided in the middle of the outside air suction channel 31. Although not particularly shown, the three-way switching means 51 has three ports to which the three flow paths are respectively connected, and desired two (or three) flow paths among the three flow paths communicate with each other. A damper is preferably used. However, there is no particular limitation, and an on-off valve (including a damper) may be provided in each of the three flow paths, and switching may be performed by a combination of these opening and closing. The same applies to all the following three-way switching means.

  The outlet of the wet flow channel 12 is connected to an outdoor air communication channel 32 whose tip is communicated with the outdoor atmosphere, and an three-way switching means 52 is provided in the middle of the external air communication channel 32.

  A connection channel 33 is connected between the outlet of the dry channel 11 and the inlet of the first channel 21, and a connection flow is connected between the outlet of the second channel 22 and the inlet of the wet channel 12. A path 34 is connected.

  In the middle of the connection channel 33, a four-way switching unit 53 and a three-way switching unit 54 are provided in series in order from the outlet side of the dry channel 11. Although not specifically illustrated, the four-way switching means has four ports to which the four flow paths are respectively connected, and switches so that two desired flow paths communicate with each other. Switching may be performed by providing a combination of opening and closing valves (including dampers), and there is no particular limitation.

  A three-way switching means 55 and a three-way switching means 56 are provided in the middle of the connection flow path 34 in order from the outlet side of the second flow path 22.

  The outlet of the first flow path 21 is connected to an inside air communication flow path 35 that is an open end of the open air whose front end communicates with the indoor space, and the front end of the second flow path 22 is connected to the indoor space. An inside air intake passage 36 serving as an open end for communicating inside air is connected.

  The inside air communication passage 35 is provided with a three-way switching means 57 and a three-way switching means 58 in order from the outlet side of the first passage 21, and the inside air suction passage 36 is provided in three directions in order from the inside air open end side. Switching means 59 and three-way switching means 60 are provided.

  A connection flow path 37 is connected between the four-way switching means 53 and the three-way switching means 60 on the inlet side of the second flow path 22 of the inside air suction flow path 36.

  A connection flow path 38 is connected between the three-way switching means 54 on the inlet side of the first flow path 21 of the connection flow path 33 and the three-way switching means 59 on the open side of the inside air suction flow path 36. Three-way switching means 61 is provided in the middle of the connection flow path 38. A connection flow path 39 is connected between the three-way switching means 61 and the three-way switching means 51.

  The connection channel 40 is connected between the three-way switching unit 56 on the inlet side of the wet channel 12 of the connection channel 34 and the three-way switching unit 57 on the outlet side of the first channel 21 of the inside air communication channel 35. The three-way switching means 62 is provided in the middle of the connection flow path 40. The connection channel 41 is connected between the three-way switching means 62 and the three-way switching means 52.

  A connection flow path 42 is connected between the three-way switching means 55 on the outlet side of the second flow path 22 of the connection flow path 34 and the three-way switching means 58 on the inside air open end side of the inside air communication flow path 35. Three-way switching means 63 is provided in the middle of the connection flow path 42. A connection flow path 43 is connected between the three-way switching means 63 and the four-way switching means 53.

  The first operation mode will be described. In the first operation mode, as shown in FIG. 2, the three-way switching means 51 is switched so that the outside communicates over the entire length of the outside air intake passage 31 from the outside open end to the inlet of the dry passage 11. The switching means 52 is switched so that the outside air communication channel 32 communicates with the inside over the entire length from the outlet of the wet channel 12 to the outside air open end. The four-way switching means 53 and the three-way switching means 54 are switched so that the inside of the connection flow path 33 communicates over the entire length from the outlet of the dry flow path 11 to the inlet of the first flow path 21. The three-way switching means 56 is switched so that the inside of the connection channel 34 communicates over the entire length from the outlet of the second channel 22 to the inlet of the wet channel 12. The three-way switching means 57 and the three-way switching means 58 are switched so that the inside air communication flow path 35 communicates with the inside over the entire length from the outlet of the first flow path 21 to the inside air open end. The means 60 is switched so that the inside air intake channel 36 communicates with the entire length from the inside air open end to the inlet of the second channel 22 to configure the channel.

  Then, the indirect vaporization cooling device 1 is turned ON (operation), and the desiccant humidity control device 2 is turned OFF (operation stop). When the desiccant humidity control device 2 is turned off, the desiccant rotor 20 is not rotated and the regenerating means 23 and 24 do not operate, but the gas passes through the first channel 21 and the second channel 22 without change in humidity. In addition, heat exchange is performed in the heat exchanger 25.

  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 first flow of the desiccant humidity control device 2 via the connection flow path 33. It flows into the path 21. And when it passes the heat exchanger 25 of the desiccant humidity control apparatus 2, it cools further and is supplied indoors via the inside air communication flow path 35.

  The inside air flows into the second passage 22 of the desiccant humidity control device 2 through the inside air suction passage 36, is heated when passing through the heat exchanger 25, and is indirectly vaporized and cooled through the connection passage 34. It flows into the wet flow path 12 of the device 1. Then, when passing through the wet flow path 12, the water held by the water holding means is vaporized and discharged to the outside through the outside air communication flow path 32, including water vapor generated.

  In the first operation mode, mainly in summer, outside air is taken in and discharged (that is, ventilation), and the outside air taken in is cooled without being humidified.

  Next, the second operation mode will be described. In the second operation mode, as shown in FIG. 3, the three-way switching means 51 is switched so that the inside of the outside air intake passage 31 is communicated over the entire length from the outside air open end to the inlet of the dry passage 11. The switching means 52 is switched so that the outside air communication channel 32 communicates with the inside over the entire length from the outlet of the wet channel 12 to the outside air open end. The four-way switching means 53 is switched so that the dry flow path 11 and the connection flow path 37 communicate with each other, and the three-way switching means 54 is switched so that the connection flow path 38 and the first flow path 21 communicate with each other. The three-way switching means 55 is switched so that the second flow path 22 and the connection flow path 42 communicate with each other, and the three-way switching means 56 is switched so that the connection flow path 40 and the wet flow path 12 communicate with each other. The three-way switching means 57 is switched so that the first flow path 21 and the connection flow path 40 communicate with each other, and the three-way switching means 58 is communicated with the connection air flow path 42 and the inside air open end of the inside air communication flow path 35. Switch to. The three-way switching means 59 is switched so that the inside air open end of the inside air suction flow path 36 communicates with the connection flow path 38, and the three-way switching means 60 is communicated with the connection flow path 37 and the second flow path 22. Switch to. The three-way switching means 62 is switched so that the inside of the connection flow path 40 communicates over the entire length from the three-way switching means 57 to the three-way switching means 56, and the three-way switching means 63 is switched from the three-way switching means 55. The flow path is configured by switching so that the inside communicates over the entire length up to the three-way switching means 58.

  Then, the indirect vaporization cooling device 1 is turned off and the desiccant humidity control device 2 is turned on. When the indirect evaporative cooling device 1 is turned off, the water supply means 13 does not operate and water is not supplied to the wet flow path 12, but the gas flowing through the dry flow path 11 and the wet flow path 12 is sensible heat to each other. The gas flowing through the dry flow path 11 is slightly cooled (this is called pre-cooling). Further, in the desiccant humidity control device 2, the desiccant rotor 20 is rotated and the regeneration means 23 of the first flow path 21 is operated. That is, the second flow path 22 becomes a moisture absorption flow path, the flowing gas is absorbed and the humidity is lowered, and the first flow path 21 becomes a moisture release flow path, and the moisture is discharged by the flowing gas and the humidity. Rises.

  Outside air flows into the dry flow path 11 via the external air suction flow path 31, is precooled without being humidified by the indirect vaporization cooling device 1, and passes through the connection flow path 37 to the second of the desiccant humidity control apparatus 2. It flows into the flow path 22. Then, it is further cooled when it passes through the heat exchanger 25, is absorbed by the moisture when passing through the desiccant rotor 20, becomes low humidity, and is supplied indoors through the connection flow path 42 and the inside air communication flow path 35.

  The inside air flows in from the inside air open end of the inside air suction flow path 36, flows into the first flow path 21 of the desiccant humidity control device 2 through the connection flow path 38, and is dehumidified when passing through the desiccant rotor 20. The humidity becomes high and flows into the wet flow path 12 of the indirect vaporization cooling device 1 through the connection flow path 40. Then, when passing through the wet flow path 12, the temperature slightly rises due to heat (sensible heat) exchange with the gas flowing through the dry flow path 11, and is discharged to the outside via the outside air communication flow path 32. Although the gas flowing through the wet flow path 12 has a high humidity, the exhaust means 14 is provided, so that no trouble is caused by condensation.

  In the second operation mode, ventilation is performed mainly in summer, and outside air taken in is precooled and dehumidified (absorbed) and supplied.

  Next, the third operation mode will be described. As shown in FIG. 4, the third operation mode has a flow path configuration similar to that of the first operation mode.

  And both the indirect vaporization cooling apparatus 1 and the desiccant humidity control apparatus 2 are turned ON, and the regeneration means 24 of the 2nd flow path 22 operate | moves the desiccant humidity control apparatus 2. FIG. That is, the first flow path 21 becomes a moisture absorption flow path, the flowing gas is absorbed and the humidity is lowered, and the second flow path 22 becomes a moisture release flow path, and the humidity is discharged by the flowing gas. Rises.

  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 first flow of the desiccant humidity control device 2 via the connection flow path 33. It flows into the path 21. Then, when passing through the desiccant rotor 20, the moisture is absorbed to become low humidity, and when passing through the heat exchanger 25, it is further cooled and supplied indoors through the inside air communication channel 35.

  The inside air flows into the second flow path 22 of the desiccant humidity control device 2 through the inside air suction flow path 36, and is dehumidified when passing through the desiccant rotor 20, and becomes high humidity. It flows into the wet flow path 12 of the indirect evaporative cooling device 1. Then, when passing through the wet flow path 12, it further includes water vapor generated by vaporization of the water held by the water holding means and is discharged to the outside through the outside air communication flow path 32. The gas flowing into the wet flow path 12 has high humidity and further contains water vapor in the wet flow path 12, but since it has the discharge means 14, it does not cause trouble due to condensation.

  In the third operation mode, ventilation is performed mainly in summer, and outside air taken in is cooled and dehumidified.

  Next, the fourth operation mode will be described. The fourth operation mode is a modification of the third operation mode, and as shown in FIG. 5, is substantially the same as the flow path configuration of the third operation mode, and different parts will be described.

  In the fourth operation mode, the three-way switching means 55 is switched so that the gas flowing through the second flow path 22 and the gas flowing through the connection flow path 42 merge and flow to the three-way switching means 56. In the three-way switching means 58, the gas that has flowed from the first flow path 21 through the internal air communication flow path 35 partially diverges and flows through the connection flow path 42, and the remainder flows through the internal air communication flow path 35. Switch to flow to. That is, in the third operation mode, a reflux path for returning the low-humidity gas flowing through the first flow path 21 to the inlet of the wet flow path 12 is formed.

  Then, similarly to the third operation mode, both the indirect vaporization cooling device 1 and the desiccant humidity control device 2 are turned on, the regeneration means 24 of the second flow channel 22 is operated, and the first flow channel 21 is the moisture absorption flow channel. Thus, the flowing gas is absorbed and the humidity is lowered, and the second channel 22 becomes the moisture releasing channel, and the moisture is released by the flowing gas and the humidity is increased.

  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 first flow of the desiccant humidity control device 2 via the connection flow path 33. It flows into the path 21. Then, when passing through the desiccant rotor 20, the moisture is absorbed to become low humidity, and when passing through the heat exchanger 25, it is further cooled and flows to the inside air communication flow path 35. And it branches in the three-way switching means 58, a part branches and flows through the connection flow path 42, and the remainder flows to the inside air open end of the inside air communication flow path 35 and is supplied indoors.

  The inside air flows into the second flow path 22 of the desiccant humidity control device 2 through the inside air suction flow path 36, and is released into high humidity when passing through the desiccant rotor 20, and flows to the connection flow path 34. . Then, the gas flowing through the second flow path 22 and the gas flowing through the connection flow path 42 are merged by the three-way switching means 55 and flow into the wet flow path 12 of the indirect evaporative cooling device 1. At this time, the humidity is lowered by mixing the high-humidity gas flowing through the second flow path 22 with the low-humidity gas flowing through the connection flow path 42. Then, when passing through the wet flow path 12, it further includes water vapor generated by vaporization of the water held by the water holding means and is discharged to the outside through the outside air communication flow path 32. The gas flowing into the wet flow path 12 has high humidity and further contains water vapor in the wet flow path 12, but since it has the discharge means 14, it does not cause trouble due to condensation.

  The fourth operation mode is similar to the third operation mode in that it is ventilated mainly in the summer and supplies outside air to be cooled and dehumidified. Since the humidity of the gas flowing into the channel is lowered and vaporization in the wet channel 12 is promoted, the cooling capacity of the gas flowing through the dry channel 11 is improved. Furthermore, since this reduces the temperature of the gas flowing into the first flow path 21, the relative humidity increases and the amount of moisture absorption when passing through the desiccant rotor 20 increases.

  Next, the fifth operation mode will be described. As shown in FIG. 6, the fifth operation mode has a flow path configuration similar to that of the second operation mode.

  And both the indirect vaporization cooling apparatus 1 and the desiccant humidity control apparatus 2 are turned ON, and the regeneration means 23 of the 1st flow path 21 operate | moves the desiccant humidity control apparatus 2. FIG. That is, the second flow path 22 becomes a moisture absorption flow path, the flowing gas is absorbed and the humidity is lowered, and the first flow path 21 becomes a moisture release flow path, and the moisture is discharged by the flowing gas and the humidity. Rises.

  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 second flow of the desiccant humidity control device 2 via the connection flow path 37. It flows into the path 22. Then, it is further cooled when it passes through the heat exchanger 25, is absorbed by the moisture when passing through the desiccant rotor 20, becomes low humidity, and is supplied indoors through the connection flow path 42 and the inside air communication flow path 35.

  The inside air flows in from the inside air open end of the inside air suction flow path 36, flows into the first flow path 21 of the desiccant humidity control device 2 through the connection flow path 38, and is dehumidified when passing through the desiccant rotor 20. The humidity becomes high and flows into the wet flow path 12 of the indirect vaporization cooling device 1 through the connection flow path 40. Then, when passing through the wet flow path 12, it further includes water vapor generated by vaporization of the water held by the water holding means and is discharged to the outside through the outside air communication flow path 32. The gas flowing into the wet flow path 12 has high humidity and further contains water vapor in the wet flow path 12, but since it has the discharge means 14, it does not cause trouble due to condensation.

  This fifth operation mode is to turn on the indirect evaporative cooling device 1 in the second operation mode, ventilating mainly in summer, and cooling and dehumidifying the supplied outside air (not preliminary cooling) and supplying it To do.

  Compared with the third operation mode, in the desiccant humidity control apparatus 2, the gas supplied indoors passes through the desiccant rotor 20 in the first flow path 21 in the third operation mode, and then the heat exchanger 25. On the other hand, in the fifth operation mode, after passing through the heat exchanger 25 and cooled in the second flow path 22, the moisture is absorbed through the desiccant rotor 20. For this reason, in the fifth operation mode, the relative humidity when the gas supplied indoors passes through the desiccant rotor 20 is increased, and the amount of moisture absorbed by the desiccant rotor 20 is increased, so that a high dehumidifying ability is obtained.

  Next, the sixth operation mode will be described. The sixth operation mode is a modification of the fifth operation mode, and as shown in FIG. 7, is substantially the same as the flow path configuration of the fifth operation mode, and different parts will be described.

  In the sixth operation mode, the gas flowing through the second flow path 22 passes through the three-way switching means 55, partly branches, partly flows through the connection flow path 34, and the rest flows through the connection flow path 42. Switch as you go. The three-way switching means 56 is switched so that the gas flowing through the connection flow path 34 and the gas flowing through the connection flow path 40 merge and flow to the wet flow path 12. That is, in the fifth operation mode, a reflux path for returning the low-humidity gas flowing through the second flow path 22 to the inlet of the wet flow path 12 is formed.

  And both the indirect vaporization cooling apparatus 1 and the desiccant humidity control apparatus 2 are turned ON, and the regeneration means 23 of the 1st flow path 21 operate | moves the desiccant humidity control apparatus 2. FIG. That is, the second flow path 22 becomes a moisture absorption flow path, the flowing gas is absorbed and the humidity is lowered, and the first flow path 21 becomes a moisture release flow path, and the moisture is discharged by the flowing gas and the humidity. Rises.

  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 second flow of the desiccant humidity control device 2 via the connection flow path 37. It flows into the path 22. And when it passes through the heat exchanger 25, it is further cooled, and when passing through the desiccant rotor 20, it absorbs moisture and becomes low humidity. Then, in the three-way switching means 55, a part is branched and flows through the connection flow path 34, and the rest flows to the inside air open ends of the connection flow path 42 and the inside air communication flow path 35 and is supplied indoors.

  The inside air flows in from the inside air open end of the inside air suction flow path 36, flows into the first flow path 21 of the desiccant humidity control device 2 through the connection flow path 38, and is dehumidified when passing through the desiccant rotor 20. The humidity becomes high and flows to the connection flow path 40. Then, the gas flowing through the connection channel 40 and the gas flowing through the connection channel 34 are merged by the three-way switching unit 56 and flow into the wet channel 12 of the indirect evaporative cooling device 1. At this time, the humidity is lowered by mixing the high-humidity gas flowing through the connection flow path 40 with the low-humidity gas flowing through the connection flow path 34. Then, when passing through the wet flow path 12, it further includes water vapor generated by vaporization of the water held by the water holding means and is discharged to the outside through the outside air communication flow path 32. The gas flowing into the wet flow path 12 has high humidity and further contains water vapor in the wet flow path 12, but since it has the discharge means 14, it does not cause trouble due to condensation.

  The sixth operation mode is similar to the fifth operation mode in that it is ventilated mainly in summer, and the outside air to be taken in is cooled (not pre-cooled) and supplied after being dehumidified. In comparison, since the humidity of the gas flowing into the wet flow path 12 is lowered and vaporization in the wet flow path 12 is promoted, the cooling capacity of the gas flowing through the dry flow path 11 is improved. Furthermore, since this reduces the temperature of the gas flowing into the second flow path 22, the relative humidity increases and the amount of moisture absorption when passing through the desiccant rotor 20 increases.

  Further, compared to the fourth operation mode, in the desiccant humidity control apparatus 2, the gas supplied indoors passes through the desiccant rotor 20 in the first flow path 21 in the fourth operation mode, and then the heat exchanger 25. On the other hand, in the sixth operation mode, after passing through the heat exchanger 25 and cooled in the second flow path 22, the moisture is absorbed through the desiccant rotor 20. For this reason, in the sixth operation mode, the relative humidity when the gas supplied indoors passes through the desiccant rotor 20 is increased, and the amount of moisture absorbed by the desiccant rotor 20 is increased, so that a high dehumidifying ability is obtained.

  Next, the seventh operation mode will be described. As shown in FIG. 8, the seventh operation mode has a flow path configuration similar to that of the first operation mode. Then, both the indirect vaporization cooling device 1 and the desiccant humidity control device 2 are turned off.

  The outside air flows into the dry flow path 11 via the external air intake flow path 31, is precooled without being humidified by the indirect vaporization cooling apparatus 1, and passes through the connection flow path 33 to the first desiccant humidity control apparatus 2. It flows into the flow path 21. And when it passes the heat exchanger 25 of the desiccant humidity control apparatus 2, it cools further and is supplied indoors via the inside air communication flow path 35.

  The inside air flows into the second passage 22 of the desiccant humidity control device 2 through the inside air suction passage 36, is heated when passing through the heat exchanger 25, and is indirectly vaporized and cooled through the connection passage 34. It flows into the wet flow path 12 of the device 1. Then, when passing through the wet flow path 12, the temperature slightly rises due to heat (sensible heat) exchange with the gas flowing through the dry flow path 11, and is discharged to the outside via the outside air communication flow path 32.

  In the seventh operation mode, ventilation is performed mainly in summer and the outside air to be taken in is cooled without being humidified. Indirect evaporative cooling is performed without operating both the indirect evaporative cooling device 1 and the desiccant humidity control device 2. Preliminary cooling in the apparatus 1 and cooling in the heat exchanger 25 of the desiccant humidity control apparatus 2 can be performed.

  Next, the eighth operation mode will be described. As shown in FIG. 9, the eighth operation mode has the same flow path configuration as the first operation mode.

  And both the indirect vaporization cooling apparatus 1 and the desiccant humidity control apparatus 2 are turned ON, and the regeneration means 23 of the 1st flow path 21 operate | moves the desiccant humidity control apparatus 2. FIG. That is, the second flow path 22 becomes a moisture absorption flow path, the flowing gas is absorbed and the humidity is lowered, and the first flow path 21 becomes a moisture release flow path, and the moisture is discharged by the flowing gas and the humidity. Rises.

  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 first flow of the desiccant humidity control device 2 via the connection flow path 33. It flows into the path 21. Then, it is dehumidified when passing through the desiccant rotor 20, cooled when passing through the heat exchanger 25, and supplied indoors through the inside air communication channel 35.

  The inside air flows into the second flow path 22 of the desiccant humidity control device 2 via the inside air suction flow path 36 and is absorbed by the low-humidity when passing through the desiccant rotor 20, and indirectly through the connection flow path 34. It flows into the wet flow path 12 of the 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 the eighth operation mode, ventilation is performed mainly in summer, and outside air to be taken in is cooled and dehumidified and supplied. In addition, even when compared with the fourth operation mode and the sixth operation mode, the humidity of the gas flowing into the wet flow channel 12 becomes lower, the vaporization in the wet flow channel 12 is further promoted, and the gas flowing through the dry flow channel 11 The cooling capacity is further improved. Thereby, a high cooling capacity is obtained.

  Next, the ninth operation mode will be described. The ninth operation mode is a modification of the eighth operation mode.

  In the ninth operation mode, as shown in FIG. 10, the three-way switching means 51 is switched so that the outside communicates over the entire length of the outside air intake passage 31 from the outside open end to the inlet of the dry passage 11. The switching means 52 is switched so that the gas flowing through the wet flow channel 12 and the gas flowing through the connection flow channel 41 merge and flow to the outside open end of the outside air communication channel 32. The four-way switching means 53 is switched so that the dry flow path 11 and the connection flow path 43 are in communication, and the three-way switching means 63 is switched so that the connection flow path 43 and the connection flow path 42 are in communication with the three-way switching means 58 side. The three-way switching means 58 is switched so that the connection channel 42 and the inside air open end of the inside air communication channel 35 communicate with each other. In the three-way switching means 59, the gas that has flowed through the inside air suction channel 36 from the inside air open end partly branches and flows through the connection channel 38, and the remainder passes through the inside air suction channel 36 through the second channel 22. The three-way switching means 60 is switched so that the inside air communication channel 36 communicates over the entire length from the inside air open end to the inlet of the second channel 22, and the three-way switching means 54 is switched. Are switched so that the connection flow path 38 and the first flow path 21 communicate with each other. The three-way switching means 55 and the three-way switching means 56 are switched so that the inside of the connection flow path 34 extends from the outlet of the second flow path 22 to the inlet of the wet flow path 12, and the three-way switching means 57 is switched. The first channel 21 and the connection channel 40 are switched so as to communicate with each other. The three-way switching means 62 is switched so that the three-way switching means 57 side of the connection flow path 40 and the connection flow path 41 communicate with each other, thereby forming a flow path.

  And both the indirect vaporization cooling apparatus 1 and the desiccant humidity control apparatus 2 are turned ON, and the regeneration means 23 of the 1st flow path 21 operate | moves the desiccant humidity control apparatus 2. FIG. That is, the second flow path 22 becomes a moisture absorption flow path, the flowing gas is absorbed and the humidity is lowered, and the first flow path 21 becomes a moisture release flow path, and the moisture is discharged by the flowing gas and the humidity. Rises.

  In the ninth operation mode, as in the eighth operation mode, ventilation is performed mainly in summer, and outside air to be taken in is cooled and dehumidified and supplied. Further, the low-temperature gas flowing through the dry flow path 11 can be supplied indoors without passing through the desiccant rotor 20 and being dehumidified as in the eighth operation mode. Further, the desiccant rotor 20 is regenerated by the inside air, and the gas having become high humidity is discharged.

  Next, the tenth operation mode will be described. The tenth operation mode is a modification of the ninth operation mode, and as shown in FIG. 11, is substantially the same as the flow path configuration in the ninth operation mode, and different parts will be described.

  In the tenth operation mode, the three-way switching means 59 is switched so that the inside air suction flow path 36 communicates with the entire length from the inside air open end to the inlet of the second flow path 22, The connection flow path 38 is switched so that the three-way switching means 54 side and the connection flow path 39 communicate with each other, and the gas flowing in the three-way switching means 51 through the outside air intake flow path 31 from the outside open end is partially branched. The flow path is configured by switching so that the remainder flowing through the connection flow path 39 flows through the outside air intake flow path 31 to the dry flow path 11.

  And both the indirect vaporization cooling apparatus 1 and the desiccant humidity control apparatus 2 are turned ON, and the regeneration means 23 of the 1st flow path 21 operate | moves the desiccant humidity control apparatus 2. FIG. That is, the second flow path 22 becomes a moisture absorption flow path, the flowing gas is absorbed and the humidity is lowered, and the first flow path 21 becomes a moisture release flow path, and the moisture is discharged by the flowing gas and the humidity. Rises.

  In the tenth operation mode, as in the eighth operation mode and the ninth operation mode, ventilation is performed mainly in the summer, and the outside air to be taken in is cooled and dehumidified and supplied. Further, the low-temperature gas flowing through the dry flow path 11 can be supplied indoors without passing through the desiccant rotor 20 and being dehumidified as in the eighth operation mode. Further, the desiccant rotor 20 is regenerated by the outside air, and the gas having become high humidity is discharged.

DESCRIPTION OF SYMBOLS 1 Indirect vaporization cooling device 11 Dry flow path 12 Wet flow path 13 Liquid supply means 14 Discharge means 2 Desiccant humidity control apparatus 20 Desiccant rotor 21 First flow path 22 Second flow path 23-24 Regeneration means 25 Heat exchanger 31 Outside air suction channel 32 Outside air communication channel 33 to 34, 37 to 43 Connection channel 35 Inside air communication channel 36 Inside air suction channel 51 to 52, 54 to 63 Three-way switching means 53 Four-way switching means

Claims (5)

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 first flow path and a second flow path; a desiccant rotor that rotates between the first flow path and the second flow path; the first flow path and the second flow path; Regenerating means provided in each of the channels, and absorbs moisture in the gas flowing in one of the first channel and the second channel, and the desiccant rotor in the other channel. A desiccant humidity control device for regeneration,
A cooling and dehumidifying system comprising:
Connected to the inlet of the dry flow path is an outdoor air intake flow path whose tip is an open air end communicating with the outdoor atmosphere, and a three-way switching means is provided in the middle of the external air intake flow path,
Connected to the outlet of the wet flow channel is an outdoor air communication channel whose tip is connected to the open air to the outdoor atmosphere, and a three-way switching means is provided in the middle of the outdoor air communication channel,
A connection flow path is connected between the outlet of the dry flow path and the inlet of the first flow path, and the four-way switching means and the three-way switching means are sequentially provided in the middle of the connection flow path from the outlet side of the dry flow path. Are provided in series,
A connection channel is connected between the outlet of the second channel and the inlet of the wet channel, and two three-way switching means are provided in series in the middle of the connection channel,
Connected to the outlet of the first flow path is an internal air communication flow path that is an open end of the internal air communicating with the indoor space, and two three-way switching means are provided in series in the middle of the internal air communication flow path,
Connected to the inlet of the second flow path is an internal air intake flow path whose front end is an open air open end communicating with an indoor space, and two three-way switching means are provided in series in the middle of the internal air intake flow path,
A connection flow path is connected between the four-way switching means and the three-way switching means on the inlet side of the second flow path of the inside air suction flow path,
The three-way switching means on the inlet side of the first flow path of the connection flow path connected between the outlet of the dry flow path and the inlet of the first flow path; A connection flow path is connected between the open-end-side three-way switching means, a three-way switching means is provided in the middle of the connection flow path, and the three-way switching means and the outside air suction flow path are provided in the middle. A connection flow path is connected between the three-way switching means,
The three-way switching means on the inlet side of the wet flow path of the connection flow path connected between the outlet of the second flow path and the inlet of the wet flow path; and the first of the inside air communication flow path A connection flow path is connected between the three-way switching means on the outlet side of the flow path, a three-way switching means is provided in the middle of the connection flow path, and provided in the middle of the three-way switching means and the outside air communication flow path. A connection flow path is connected between the three-way switching means,
The three-way switching means on the outlet side of the second channel of the connection channel connected between the outlet of the second channel and the inlet of the wet channel, and the inside air of the inside air communication channel A connection flow path is connected between the open end side and the three-way switching means, a three-way switching means is provided in the middle of the connection flow path, and a connection flow path is provided between the three-way switching means and the four-way switching means. Cooling dehumidification system characterized by being connected. Switching the three-way switching means provided in the middle of the outside air intake channel so that the inside communicates over the entire length,
Switching the three-way switching means provided in the middle of the outside air communication flow path so that the inside communicates over the entire length,
The four-way switching means and the three-way switching means provided in the middle of the connection flow path, which is connected between the outlet of the dry flow path and the inlet of the first flow path, over the entire length. Switch
The three-way switching means and the three-way switching provided in the middle of the connection flow channel connected between the outlet of the second flow channel and the inlet of the wet flow channel over the entire length. Switch means,
Switching the three-way switching means and the three-way switching means provided in the middle so that the inside air communication flow path connected to the outlet of the first flow path is communicated over the entire length,
The three-way switching means and the three-way switching means are switched so that the inside air suction flow path connected to the inlet of the second flow path communicates with the entire length, and a flow path is configured.
Operating the liquid supply means of the indirect evaporative cooling device;
The cooling and dehumidifying system according to claim 1, wherein the desiccant rotor and the regeneration unit of the desiccant humidity control apparatus are operated without being operated. Switching the three-way switching means provided in the middle of the outside air intake channel so that the inside communicates over the entire length,
Switching the three-way switching means provided in the middle of the outside air communication flow path so that the inside communicates over the entire length,
The four-way switching means and the three-way switching means provided in the middle of the connection flow path, which is connected between the outlet of the dry flow path and the inlet of the first flow path, over the entire length. Switch
The three-way switching means and the three-way switching provided in the middle of the connection flow channel connected between the outlet of the second flow channel and the inlet of the wet flow channel over the entire length. Switch means,
Switching the three-way switching means and the three-way switching means provided in the middle so that the inside air communication flow path connected to the outlet of the first flow path is communicated over the entire length,
The three-way switching means and the three-way switching means are switched so that the inside air suction flow path connected to the inlet of the second flow path communicates with the entire length, and a flow path is configured.
Operating the liquid supply means of the indirect evaporative cooling device;
The cooling and dehumidifying system according to claim 1, wherein the desiccant rotor of the desiccant humidity control device and the regeneration means of the second flow path are operated to operate. Switching the three-way switching means provided in the middle of the outside air intake channel so that the inside communicates over the entire length,
Switching the three-way switching means provided in the middle of the outside air communication flow path so that the inside communicates over the entire length,
The four-way switching means and the three-way switching means provided in the middle of the connection flow path, which is connected between the outlet of the dry flow path and the inlet of the first flow path, over the entire length. Switch
The three-way switching means and the three-way switching provided in the middle of the connection flow channel connected between the outlet of the second flow channel and the inlet of the wet flow channel over the entire length. Switch means,
Switching the three-way switching means and the three-way switching means provided in the middle so that the inside air communication flow path connected to the outlet of the first flow path is communicated over the entire length,
The three-way switching means and the three-way switching means are switched so that the inside air suction flow path connected to the inlet of the second flow path communicates with the entire length, and a flow path is configured.
Without operating the liquid supply means of the indirect evaporative cooling device,
The cooling and dehumidifying system according to claim 1, wherein the desiccant rotor and the regeneration unit of the desiccant humidity control apparatus are operated without being operated. Switching the three-way switching means provided in the middle of the outside air intake channel so that the inside communicates over the entire length,
Switching the three-way switching means provided in the middle of the outside air communication flow path so that the inside communicates over the entire length,
The four-way switching means and the three-way switching means provided in the middle of the connection flow path, which is connected between the outlet of the dry flow path and the inlet of the first flow path, over the entire length. Switch
The three-way switching means and the three-way switching provided in the middle of the connection flow channel connected between the outlet of the second flow channel and the inlet of the wet flow channel over the entire length. Switch means,
Switching the three-way switching means and the three-way switching means provided in the middle so that the inside air communication flow path connected to the outlet of the first flow path is communicated over the entire length,
The three-way switching means and the three-way switching means are switched so that the inside air suction flow path connected to the inlet of the second flow path communicates with the entire length, and a flow path is configured.
Operating the liquid supply means of the indirect evaporative cooling device;
2. The cooling and dehumidifying system according to claim 1, wherein the desiccant rotor of the desiccant humidity control apparatus is operated by operating the regeneration unit of the first flow path.

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