JP2011038684A - Cooling system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooling system having high power-saving effect for suppressing CO<SB>2</SB>emission, with an aim toward suppressing global warming. <P>SOLUTION: The cooling system for cooling the indoor air by cooling the air sent from a room, such as, office to the outside, and supplying the cooled air into the room, has an exhausting means for exhausting the indoor air to the outside via a discharge passage; a spray means for spraying fine water drops or mist to the air exhausted outdoors by the exhausting means; and a dehumidifying means for dehumidifying the air, to which the fine water drops or mist is sprayed by the spray means. The air dehumidified by the dehumidifying means is sent indoors via an inlet passage and lower the indoor temperature. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cooling system for cooling a room such as an office. Specifically, the present invention relates to a cooling system that cools air sent from a room such as an office outside and supplies the cooled air to the room to cool the room air.

In recent years, in order to suppress CO ₂ emissions for the purpose of suppressing global warming, provision of a cooling system with a high power saving effect has been demanded.

  As a cooling system of this type, for example, a fan 3 is provided in a house 1 (such as a barn or a cultivation room building) that is a closed space, and when the air in the house 1 is exhausted by the fan 3, the inside of the house 1 is Negative pressure is applied, and the outside air is introduced into the house 1 through the air permeable pad 7 of the evaporative cooling device 5. At this time, if fine water droplets or mist is sprayed on the outer surface of the air permeable pad 7 from the spray nozzle 8b connected to the water pipe 8a, the heat of the outside air is absorbed by contact with the water mist, and the heat of vaporization causes the house. There is one that can lower the temperature in 1 (for example, Patent Document 1).

  In addition, as a cold air generator that cools outdoor warm air and blows it indoors, a blower 3 that introduces outside air into the room and a water supply hose 8 that is attached to the front surface of the frame 2 of the blower 3 are attached. A spray device 5 provided with a spray nozzle 9 for generating fog is provided, and the outlet of the frame body 2 is vertically defined in a lattice shape by a vertically long swing louver 6, and its upper and lower ends are framed by a movable link 7. 2 is swingably attached. When the motor 10 is rotated, the swing louver 6 swings left and right, and the fine mist W ejected from the spray device 5 is diffused in a wide angle in the left-right direction, so that the room can be efficiently cooled. (For example, Patent Document 2).

Japanese Patent Laid-Open No. 2001-215027 JP 2007-139329 A

  However, in a conventional cooling device, fine water droplets or mist ejected from a nozzle are brought into contact with the outside air introduced into the room to absorb the heat of the outside air, and the air whose temperature has been lowered by the heat of vaporization is brought into the room. Since the air sent into the room is humid, the humidity of the air becomes high. If the high-humidity air is sent into the room, there is a risk that a precision device such as a personal computer may malfunction or the documents may be adversely affected. there were. In addition, there is a problem that the humidity in the room increases and the temperature of the person in the room increases due to the high humidity air being sent into the room.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a cooling system that improves the comfort of a person in the room without causing a problem in a precision machine or a document provided in the room. To do.

  In order to solve the above-mentioned problems and achieve the above-mentioned object, the first aspect of the present invention is to cool the air sent from the room such as an office outside and cool the cooled air inside the room. A cooling system for supplying and cooling indoor air by exhaust means for exhausting indoor air to the outside through a discharge passage, and spray for spraying fine water droplets or mist on the air exhausted to the outside by the exhaust means And dehumidifying means for dehumidifying the air sprayed with fine water droplets or mist by the spraying means, and the air dehumidified by the dehumidifying means is sent into the room through the introduction passage so that the temperature in the room is increased. It is cooled.

  According to the present invention, the fine water droplets or mist sprayed by the spraying means are sufficiently vaporized by the air exhausted from the room, and the air exhausted from the room is cooled by the heat of vaporization generated at that time. Since the dehumidified air is dehumidified by the dehumidifying means, low-temperature and low-humidity air can be supplied indoors. As a result, the low-humidity air supplied into the room does not cause problems in precision equipment such as a personal computer or adversely affect documents and the like. Moreover, since low-temperature and low-humidity air is supplied indoors, the sensible temperature can be lowered.

  According to a second aspect of the present invention, there is provided the cooling system according to the first aspect, wherein the exhaust means is an exhaust fan that exhausts indoor air to the outside through the exhaust passage, and the spray means is water supply. It is a spray nozzle that sprays water supplied by a pipe in the form of fine water droplets or mist, and the dehumidifying means is a dehumidifying rotor carrying a dehumidifying agent.

  According to a third aspect of the present invention, there is provided a cooling system according to the first aspect, wherein the exhaust means exhausts the air in the room provided with the cooling device to the outside and is dehumidified by the dehumidifying means. Air is sent into a room provided with a cooling device through an introduction passage.

  According to the present invention, since the air in the room provided with the cooling device is cooled outside by the cooling system of the present invention and further supplied to the room, the power consumption of the indoor cooling device can be reduced.

  According to the fourth aspect of the present invention, there is provided a cooling method in which air sent from a room such as an office is cooled outside, and the cooled air is supplied to the room to cool the room air. The exhaust process for exhausting indoor air through the exhaust passage, the spray process for spraying fine water droplets or mist onto the air exhausted by the exhaust process, and the fine water droplets or mist are sprayed by the spray process. A dehumidifying step for dehumidifying the air, and the air dehumidified in the dehumidifying step is sent into the room through the introduction passage, whereby the temperature in the room is cooled.

  According to the present invention, the fine water droplets or mist sprayed by the spraying process are sufficiently vaporized by the air exhausted from the room, and the air exhausted from the room is cooled by the heat of vaporization generated at that time, and the cooled Since air is dehumidified by the dehumidifying step, low-temperature and low-humidity air can be supplied indoors. As a result, the low-humidity air supplied into the room does not cause problems in precision equipment such as a personal computer or adversely affect documents and the like. Moreover, since low-temperature and low-humidity air is supplied indoors, the sensible temperature can be lowered.

  According to the present invention, the fine water droplets or mist sprayed by the spraying means are sufficiently vaporized by the air exhausted from the room, and the air exhausted from the room is cooled by the heat of vaporization generated at that time. Since the air is dehumidified by the dehumidifying means, it is possible to lower the sensible temperature without causing troubles in precision equipment such as a personal computer or adversely affecting documents.

It is the schematic of the house provided with the cooling system in one Embodiment of this invention. It is a block diagram of the cooling dehumidifier in the cooling system concerning one Embodiment of this invention. It is a block diagram of the cooling dehumidifier in the cooling system concerning other embodiment of this invention. It is the schematic of the house provided with the cooling system in other embodiment of this invention. It is the schematic of the building provided with the cooling system in other embodiment of this invention.

Example 1
FIG. 1 is a schematic view of a house provided with a cooling system according to an embodiment of the present invention. The cooling system 100 includes an exhaust fan 104 for discharging the air in the room 106 to the outside, a discharge passage 102 for guiding the discharged air to the cooling dehumidifier 201, and a cooling dehumidifier 201 for cooling and dehumidifying the discharged air. (The detailed configuration will be described later), and an introduction passage 103 and an introduction fan 105 for introducing the cooled and dehumidified cool air into the room again.

  In FIG. 1, both the exhaust fan 104 and the introduction fan 105 are installed, but either or both of them can be omitted. Alternatively, the installation positions of the exhaust fan 104 and the introduction fan 105 can be changed to other positions in the discharge passage 102 and the introduction passage 103, respectively.

  Here, the general flow of the air circulation will be described. First, the warm air in the room 106 is guided to the cooling dehumidifier 201 through the discharge passage 102 by the exhaust action of the exhaust fan 104. As will be described in detail later, in the air-cooling dehumidifier 201, the fine water droplets or mist sprayed by the spraying means are sufficiently vaporized by the air exhausted from the room as the first stage processing action, and the heat of vaporization generated at that time Thus, the air exhausted from the room is cooled. Next, the cooled air is dehumidified by a dehumidifying means such as a dehumidifying rotor as a second stage processing action. Thus, the cooled and dehumidified cold air is again introduced into the room 106 through the introduction passage 103 by the cold air introduction action into the room 106 by the introduction fan 105. By repeating the air circulation as described above, the temperature and humidity in the room 106 are lowered. At this time, since the air supplied to the room 106 has low humidity, the humidity does not cause a problem in a precision device such as a personal computer in the room or adversely affect documents and the like. Moreover, since low-temperature and low-humidity air is supplied indoors, the sensible temperature can be lowered without lowering the temperature setting more than necessary.

  Next, FIG. 2 shows a configuration diagram of a cooling dehumidifier in the cooling system according to the embodiment of the present invention. The cooling dehumidifier 201 is roughly divided into a cooling chamber 202 for cooling indoor air that has been sucked in, a dehumidifying chamber 203 for dehumidifying to reduce the humidity of the cooled air, and dehumidifying means (specific examples). As a dehumidifying rotor). In addition, a suction fan 205 is installed as necessary to efficiently suck indoor air into the cooling chamber 202. If the exhaust fan 104 functions sufficiently, the suction fan 205 can be omitted. Alternatively, when the suction fan 205 functions sufficiently, the exhaust fan 104 may be omitted. Thus, the air sucked from the room is guided to the cooling chamber 202. An air filter (not shown) may be installed inside or outside the suction port so as not to suck indoor dirt unnecessarily.

  A ventilation pad 206 and spray means 207 are installed in the cooling chamber 202. The ventilation pad 206 has air permeability (breathability) and is made of a material such as water-resistant cellulose fiber. For installation, for example, the pad 206 is attached to a grid or mesh frame (not shown) having an area slightly smaller than the cross-sectional area in the cooling chamber 202, and the end of the frame is screwed to the inner wall of the cooling chamber. Fix it by fastening it. When the peripheral edge of the frame on which the ventilation pad 206 is attached is brought into close contact with the inner wall of the cooling chamber 202, all the air sucked into the cooling chamber 202 passes through the ventilation pad 206, so that the cooling effect is improved. Further, unless there are special circumstances, the ventilation pad 206 is installed so as to coincide with an arbitrary vertical cross section of the inner wall of the cooling chamber 202 so that air sucked into the cooling chamber 202 passes through the pad 206 substantially vertically. (In other words, it is set to be parallel to the rotation surface of the dehumidifying rotor in the figure).

  The spraying means 207 is constituted by a water pipe or the like, and in one embodiment, is installed so as to be close to and parallel to the outer surface of the ventilation pad 206. Although it is formed in a meander shape in FIG. 1, it is not necessarily limited to this shape, and a plurality of tubes may be branched and installed so as to be substantially parallel to each other. The water pipe is provided with, for example, a plurality of spray nozzles (not shown) installed so that the central axis in the spray direction is perpendicular to the outer surface of the ventilation pad 206, and the spray pipe has a fine mist shape toward the pad 206. Spray water. When the air sucked from the room passes through the ventilation pad 206 containing fine water, the heat is absorbed by contact with the spray water, and the temperature is lowered by the heat of vaporization. The air thus cooled is sent to the dehumidifying chamber 203 through the communication hole 208. In this embodiment, the spraying means 207 is installed so as to be close to and parallel to the outer surface of the lower surface of the ventilation pad 206. However, the present invention is not limited to this, and the spraying means 207 is provided close to and parallel to the outer surface of the upper surface of the ventilation pad 206. You may install so that.

  In addition, you may comprise so that the presence or absence of the supply from a spray nozzle or the amount of water supplied may be automatically controlled by the temperature control system by a thermostat etc. which are not shown in figure. For example, the supply of water from the spray nozzle is interrupted until the room temperature rises to a preset temperature T1, and control is performed so that the supply of water is started when the set temperature is reached. Then, when the temperature falls to a preset target temperature T2 (<T1), the water supply is interrupted again. Such automatic control can keep the room 106 in a comfortable temperature range while minimizing system operation costs.

  In the dehumidifying chamber 203, a dehumidifying rotor 209 is installed so that air can be touched (passed through) to reduce the humidity contained in the air cooled in the cooling chamber 202. The dehumidifying rotor 209 is configured to carry a dehumidifying agent, for example, or is made of a material that adsorbs moisture such as zeolite, and is centered on a rotating shaft (not shown) so that the regenerated dry surface is in contact with air. Is rotating at a constant speed. The “humid air” passing through the dehumidifying rotor 209 is deprived of moisture here. As a result, it becomes dry air and is sent out of the dehumidifying chamber by the blowing action of the blower fan 212. The blower fan 212 can be omitted when the introduction fan 105 functions sufficiently. Alternatively, the introduction fan 105 may be omitted when the blower fan 212 functions sufficiently. In addition, it is good also as installing the air filter (not shown) for removing the dirt of the air which circulates between rooms.

  The dehumidifying rotor 209 rotates at a constant speed so that the regenerated dry surface always comes into contact with the air sucked from the room, but regenerates the surface that has adsorbed moisture (reset to a low humidity dry state again). For this reason, a part of the area of the rotor 209 passes through the regeneration chamber 204. In the regeneration chamber 204, in order to remove moisture contained in the dehumidification rotor 209, relatively dry outside air sucked from the regeneration air suction port 210 is passed through the dehumidification rotor 209. Usually, the dehumidifying rotor 209 has a humidity higher than the humidity of the outside air because the dehumidifying chamber 203 contains sufficient humidity. Therefore, the humidity of the dehumidification rotor 209 can be removed by passing dry outside air. Thus, the outside air that has passed through the dehumidifying rotor 209 becomes “humid air” having a higher humidity than before being sucked into the regeneration chamber 204, and is released to the outside through the regeneration air discharge port 211. .

  In addition, if a ventilation fan (not shown) is installed in one or both of the regeneration air suction port 210 and the regeneration air discharge port 211, circulation of outside air in the regeneration chamber 204 can be made smooth. Is preferred.

(Example 2)
FIG. 3 shows a configuration diagram of a cooling dehumidifier 301 in a cooling system according to another embodiment of the present invention. Since the basic configuration is common to the cooling dehumidifier 201 shown in FIG. 2, the same components as those of the cooling dehumidifier 201 are attached to the common configuration.

  The cooling dehumidifier 301 has a cooling chamber 302, a dehumidifying chamber 203, and a regeneration chamber 304, and only the spraying means 307 is installed in the cooling chamber 302. The spraying means 307 is constituted by a water pipe or the like, and in one embodiment, is installed so as to be parallel to the vertical cross section of the cooling chamber 302 (parallel to the rotating surface of the dehumidifying rotor 209 in the drawing). In FIG. 3, the water pipe is formed in a meander shape, but is not necessarily limited to this shape, and a plurality of pipes may be branched and installed so as to be substantially parallel to each other. In the water pipe, for example, a plurality of spray nozzles (not shown) are installed so that the central axis of the spray direction is perpendicular to the rotation surface of the dehumidification rotor 209 in the figure, and a fine mist is formed in the cooling chamber 302. Spray water. This mist-like water is ultrafine and evaporates completely when it comes into contact with the air sucked from the room, and the temperature is lowered due to the heat absorption effect due to the contact with the spray water. The air thus cooled is sent to the dehumidifying chamber 203 through the communication hole 208.

  In addition, you may comprise so that the presence or absence of the supply from a spray nozzle or the quantity of water which can be supplied is automatically controlled by the temperature control system by the thermostat etc. which are not shown in figure. For example, the supply of water from the spray nozzle is interrupted until the room temperature rises to a preset temperature T1, and control is performed so that the supply of water is started when the set temperature is reached. Then, when the temperature falls to a preset target temperature T2 (<T1), the water supply is interrupted again. Such automatic control can keep the room 106 in a comfortable temperature range while minimizing system operation costs.

  In the dehumidifying chamber 203, a dehumidifying rotor 209 is installed so that air can be touched (passed through) to reduce the humidity contained in the air cooled in the cooling chamber 202. The dehumidifying rotor 209 rotates at a constant speed around a rotating shaft (not shown) so that the regenerated dry surface is always in contact with air. The “humid air” passing through the dehumidifying rotor 209 is deprived of moisture here. As a result, it becomes dry air and is sent out of the dehumidifying chamber by the blowing action of the blower fan 212. The blower fan 212 can be omitted when the introduction fan 105 functions sufficiently. Alternatively, the introduction fan 105 may be omitted when the blower fan 212 functions sufficiently. In addition, it is good also as installing the air filter (not shown) for removing the dirt of the air which circulates between rooms.

  The dehumidification rotor 209 rotates at a constant speed so that the regenerated dry surface comes into contact with the air sucked from the room, but regenerates the surface that has adsorbed moisture (to make it dry again at low humidity). Therefore, a part of the area of the rotor 209 is configured to pass through the regeneration chamber 304 as well. In the regeneration chamber 304, in order to remove the moisture contained in the dehumidification rotor 209, the relatively dry outside air sucked from the regeneration air suction port 210 is passed through the dehumidification rotor 209. At this time, if the suction outside air is warmed by the heater 308, high-temperature air passes through the dehumidification rotor 209 with high humidity, and the air that has passed through the dehumidification rotor 209 becomes “high-temperature high-humidity air”. Then, when this “high temperature high room air” is brought into contact with the cooling air passage 309 provided in the regeneration chamber 304, it is cooled and moisture is taken out. The extracted water can be stored in, for example, the tank 310, and when it reaches a certain amount, the tank 310 can be removed to dispose of the stored water.

  Here, the cooling air passage 309 is configured to efficiently circulate the outside air by providing a fan at one or both of the inlet and the outlet. Normally, the “high temperature and high humidity air” in the regeneration chamber 304 is much higher temperature and high humidity than the outside air circulating through the cooling air passage 309, so that it functions as a heat exchanger for cooling the “high temperature and high humidity air”. To fully fulfill.

  Also in the second embodiment, the regeneration air discharge port 211 may be provided as in the first embodiment, and the regeneration air suction port 210 is provided in a form in which the regeneration air discharge port 211 is provided. Alternatively, it is preferable to install a ventilation fan (not shown) in either one or both of the regeneration air discharge ports 211 to smoothly circulate the outside air in the regeneration chamber 204.

(Example 3)
FIG. 4 is a schematic view of a house provided with a cooling system according to another embodiment of the present invention. In FIG. 4, a cooling device 401 such as a cooler is installed in the room. In other words, the cooling device 401 and the cooling system 100 according to the present invention are used in combination as a cooling means for this room. In this case, since the air in the room provided with the cooling device 401 is cooled outside by the cooling system of the present invention and further supplied to the room, the power consumption of the indoor cooling device can be reduced. Play. That is, since the air that the cooling device 401 must cool is maintained at a lower temperature by the cooling system according to the present invention, the temperature difference that the cooling device 401 needs to cool further is the system according to the present invention. Compared to the case where there is no power, the power consumption is reduced.

Example 4
FIG. 5 shows a schematic view of a building provided with a cooling system according to another embodiment of the present invention. The building shown in FIG. 5 has a plurality of rooms 506a to 506f, and each room includes discharge passages 502a to 502f and introduction passages 503a to 503f. Although shown in the figure, in order to improve the air permeability of each room, exhaust fans 504a to 504f and introduction fans 505a to 505f may be provided (either the exhaust fan or the introduction fan or both of them). May be omitted).

  A feature of the building shown in FIG. 5 is that indoor air exhausted from the rooms 506a to 506f is collected in a collective cooling and dehumidifier 501 installed on the roof of the building. That is, although a detailed route is not shown in the drawing, the discharge passages 502 a to 502 f are configured to be connected to the exhaust passage 502 of the collective cooling and dehumidifier 501. Similarly, the introduction passage 503 of the collective cooling dehumidifier 501 is configured to be connected to the introduction passages 503a to 503f of each room so that the cool air can be collectively introduced into each room from the collective cooling dehumidifier 501. ing. The connection route can be appropriately changed according to the structure of the building. In the present embodiment, the collective cooling and dehumidifying device 501 is installed on the roof, but is not limited thereto, and may be installed in a room in a building, a basement, or the like.

  As described above, since air in each room is collected in the collective cooling and dehumidifying machine 501 in a building having a plurality of rooms, for example, outdoor air for dehumidifying rotor regeneration is used on the rooftop (in general, the temperature is high because the altitude is high). Therefore, it is possible to provide cool air efficiently and efficiently to each room as compared with the case where each room is equipped with a cooling dehumidifier. In addition, the temperature of experience can be lowered without causing problems in precision equipment such as a personal computer or adversely affecting documents.

  In the cooling system shown in FIG. 5, any of the cooling system described in the first embodiment and the cooling system described in the second embodiment can be used. In addition, when a cooling device such as a cooler is installed in all or a part of each room, the indoor air provided with the cooling device is cooled outside by the cooling system of the present invention and further supplied to the room. Therefore, it goes without saying that the power consumption of the indoor cooling device can be further reduced.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. Further, the scope of the present invention is shown not by the above description but by the description of the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

100 Cooling system 102 Discharge passage 103 Introduction passage 104 Exhaust fan 105 Introduction fan 106 House (indoor)
201 Cooling dehumidifier 202 Cooling chamber 203 Dehumidifying chamber 204, 304 Regeneration chamber 205 Suction fan 206 Ventilation pads 207, 307 Spray means 208 Communication hole 209 Dehumidification rotor 210 Regeneration air suction port 211 Regeneration air discharge port 212 Blower fan 308 Heater 309 Air passage 310 for cooling Tank 401 Cooling device (cooler)
501 Collective cooling dehumidifier 502 Collective discharge passage 503 Collective introduction passage

Claims (4)

A cooling system that cools air sent from a room such as an office outside and supplies the cooled air to the room to cool the room air.
Exhaust means for exhausting indoor air to the outside through the discharge passage;
Spray means for spraying fine water droplets or mist on the air exhausted to the outside by the exhaust means;
A dehumidifying means for dehumidifying the air sprayed with fine water droplets or mist by the spraying means,
The air that has been dehumidified by the dehumidifying means is sent into the room through the introduction passage, whereby the temperature in the room is cooled. The exhaust means is an exhaust fan that exhausts indoor air to the outside through a discharge passage,
The spray means is a spray nozzle that sprays water supplied by a water pipe into fine water droplets or mist,
The cooling system according to claim 1, wherein the dehumidifying means is a dehumidifying rotor on which a dehumidifying agent is supported. The exhaust means exhausts the indoor air provided with a cooling device to the outside,
The cooling system according to claim 1, wherein the air dehumidified by the dehumidifying means is sent into a room provided with the cooling device through an introduction passage. A cooling method of cooling air sent from a room such as an office outside and supplying the cooled air to the room to cool the room air,
An exhaust process for exhausting indoor air to the outside through the exhaust passage;
A spraying step of spraying fine water droplets or mist on the air exhausted to the outside by the exhausting step;
A dehumidifying step for dehumidifying the air sprayed with fine water droplets or mist by the spraying step, and
The air that has been dehumidified in the dehumidifying step is sent into the room through the introduction passage, thereby cooling the room temperature.

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