JP5579638B2 - Outside air cooling structure - Google Patents

Description

  The present invention relates to an outside air cooling structure.

  In recent years, the heat island phenomenon, in which the temperature rise in summer, becomes significant in large cities, has become a social problem. The heat island phenomenon is thought to occur when many buildings are built in a place originally covered with earth and sand and plants, heat is released in large quantities, and the building structure blocks heat dissipation. This tendency is particularly remarkable in large cities.

  As a measure to reduce the heat of the heat island phenomenon, water is retained in the surface covering portion of the city, and the heat of vaporization caused by water evaporation is used. Specifically, for example, there was a building structure as shown in Patent Document 1. This building has a structure in which the outer wall is configured with a porous wall material having water retention, a water supply channel is provided to wet the wall material, and a ventilation path is provided to be in contact with the wall material. ing. According to the building having such a configuration, moisture on the outer wall can be evaporated and the outside air can be cooled by the heat of vaporization.

Japanese Patent Laid-Open No. 8-42013

  However, in the above-mentioned building structure, the heat relaxation effect cannot be obtained at a place away from the building. Moreover, depending on the arrangement conditions of the building, the wind is stagnant and it is difficult for water evaporation to be promoted, and the sufficient heat relaxation effect may not be exhibited.

  From such a viewpoint, it is an object of the present invention to provide an outdoor air cooling structure that can obtain a heat relaxation effect even at a location away from a building and that always has a good ventilation state.

The present invention, which has been devised to solve such a problem, includes a water retention means provided outside the building, and an air supply means for supplying air having a temperature lower than the outside air to the water retention means, the air supply The air cooling structure is characterized in that the air outlet is formed in the means toward the cooling target space to be cooled , and the water of the water retaining means is evaporated by the air blown out from the air outlet. It is.

  According to such a structure, even if it is a place away from the building or a place where the wind is stagnant, it is possible to forcibly generate the ventilation by the air blown from the air supply means and to evaporate the water content of the water retention means. Therefore, the heat relaxation effect can be surely obtained by using the heat of vaporization.

  And it is preferable that the said air supply means was provided with the air conditioning equipment installed in the said building, and the exhaust pipe which supplies the air exhausted from this air conditioning equipment to the said water retention means.

  Here, the exhaust pipe is a pipe in which air-conditioning exhaust flows inside a pipe material such as metal, and includes a generally used air-conditioning duct. According to such a configuration, it is possible to effectively use the air-conditioning exhaust that has simply been discharged into the atmosphere.

  The air supply means includes a buried pipe that introduces air and passes through the ground, an exposed pipe that extends from the buried pipe to the water retention means, and a blower that sends air to the buried pipe. Preferably, it is configured.

  According to such a configuration, the temperature of the outside air can be lowered and supplied to the water retaining means by utilizing the cold in the ground in summer.

  And it is preferable that the said water retention means is comprised including planting, and the said exhaust pipe is arrange | positioned so that the said outlet may be located inside the said planting.

  According to such a structure, the water of planting can be evaporated by the blowing air from the exhaust pipe, and a planting space having an aesthetic appearance can be obtained.

  Moreover, it is preferable that the water retaining means includes an artificial water retaining body that covers the outlet.

  The artificial water retaining body is made of, for example, a nonwoven fabric, a woven fabric, or a building material having water retention. According to such a configuration, moisture easily evaporates from the artificial water retaining body, and a high heat relaxation effect can be obtained.

  According to the present invention, it is possible to obtain an outdoor air cooling structure in which a heat relaxation effect can be obtained even at a place away from a building, and the ventilation state is always good.

It is the schematic block diagram which showed the external air cooling structure which concerns on 1st embodiment of this invention. It is the schematic block diagram which showed the external air cooling structure which concerns on 2nd embodiment of this invention. It is the schematic block diagram which showed the external air cooling structure which concerns on 3rd embodiment of this invention. It is the schematic block diagram which showed the external air cooling structure which concerns on 4th embodiment of this invention.

(First embodiment)
Hereinafter, a first embodiment for carrying out the present invention will be described in detail with reference to the accompanying drawings. As shown in FIG. 1, the outside air cooling structure 1 a according to the first embodiment includes a water retention means 10 provided outside the building 2, and an air supply means 29 that supplies air having a temperature lower than the outside air to the water retention means 10. It has. The air conditioning equipment 3 is provided inside the building 2 and may be existing or newly installed.

  In this embodiment, the water retention means 10 is configured by planting 11. The planting 11 is provided in an open space such as a walking space 4 adjacent to the building 2 outside the building 2, and is arranged at a predetermined interval so as to surround the walking space 4. In addition, the installation place of the planting 11 is not limited to an external open space, and may be an indoor atrium space or a space covered with an arcade.

  In the present embodiment, the air supply means 29 includes an air conditioner 3 installed in the building 2 and an exhaust pipe 30 that supplies air exhausted from the air conditioner 3 to the water retention means 10. One end of the exhaust pipe 30 is connected to the exhaust duct of the air conditioning equipment 3. In many cases, the air-conditioning exhaust is less than 30 ° C., and is used for cooling the outside air in summer. The other end of the exhaust pipe 30 extends through the outer wall 5 of the building 2 to the walking space 4. For example, a heat insulating material is wound around the exhaust pipe 30, and the air-conditioning exhaust is blown into the planting 11 while suppressing the temperature rise of the exhaust temperature from the air-conditioning equipment 3.

  The exhaust pipe 30 passes over the head of the walking space 4, branches from various places above the planting 11 toward the inside of the planting 11, and is inserted into the planting 11 in a hanging manner. A blowout port 31 is formed in the insertion portion 32 of the exhaust pipe 30 inserted inside the planting 11, and blown air (shown by a thick arrow in the figure) blows out from this blowout port. . A plurality of outlets 31 are provided at a predetermined pitch in the vertical direction. The outlet 31 is formed at a position facing the walking space 4, and the blowing air is blown out toward the walking space 4. In addition, the formation position of the blower outlet 31 is not limited to this embodiment, You may form in the position which opposes the outer side of the walking space 4. FIG.

  The planting 12 is also provided in the overhead part of the walking space 4 so as to cover the exhaust pipe 30. The overhead planting 12 is configured, for example, by winding a vine plant around the exhaust pipe 30. In this way, the aesthetics can be improved without exposing the exhaust pipe 30, and the direct sunlight can be prevented from entering the exhaust pipe 30, so that the temperature rise of the exhaust can be suppressed. In addition, the overhead planting 12 is not limited to a vine plant, and may be another plant as long as it can block sunlight, and is other than a plant (for example, a heat insulating material such as glass wool). Also good. In this way, the effect of suppressing the temperature rise of the exhaust is improved, and the walking space 4 can be shaded.

  Note that the air inlet of the air conditioning equipment 3 may be provided so as to open to the walking space 4. In this way, low-temperature air can be circulated between the walking space 4 and the room, and efficient air conditioning can be performed.

  According to the outside air cooling structure 1a having the above-described configuration, the moisture of the water retaining means 10 is removed from the exhaust pipe 30 even in a place away from the building 2 or a place where the wind is stagnant at the side of the building 2 or the like. Ventilation can be forcibly generated by the blowing air. As a result, the air around the water retention means 10 moves and the water can be efficiently evaporated. Therefore, the outside air can be reliably cooled using the heat of vaporization, and the heat relaxation effect can be obtained. Further, since the air supply means 29 is configured to include the air conditioning equipment 3 and the exhaust pipe 30, it is possible to effectively utilize the exhaust of the air conditioning equipment 3 that has been simply exhausted into the atmosphere and is cooled. A cooling effect is also obtained by blowing the exhaust gas into the walking space 4.

  Specifically, as the heat relaxation effect, when the outside air is 33 ° C. and the room is 26 ° C., the walking space 4 becomes about 28 ° C., and a cooling effect of about 5 ° C. can be expected.

  In addition, in this embodiment, although the blower outlet 31 is formed in the drooping part of the exhaust piping 30, you may form in the horizontal part which passes the overhead of the walking space 4. FIG. The direction of the blowout port 31 may be any direction as long as the planting 12 is directed in a certain direction, but a downward direction in which the wind is sent toward the walking space 4 is preferable. Also in this case, since the planting 12 constitutes the water retention means 10 and water can be efficiently evaporated, a heat relaxation effect can be obtained by the heat of vaporization.

(Second embodiment)
Next, a second embodiment for carrying out the present invention will be described in detail with reference to the attached drawings. As shown in FIG. 2, the outside air cooling structure 1 b according to the second embodiment has a configuration in which the air supply means 29 supplies air having a temperature lower than the outside air by connecting the exhaust pipe 30 b to the air conditioning equipment 3, The structure which cools the air in piping using cold heat is provided. In addition, since the structure of the water retention means 10 is the same as that of 1st embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The exhaust pipe 30 b is connected to the air conditioning equipment 3 installed on the basement of the building 2. The exhaust pipe 30 b penetrates the wall of the underground part of the building 2 and is embedded in the ground 6 to the position of the planting 11 that is the water retention means 10. The exhaust pipe 30 b includes an underground pipe 35 and an exposed pipe 36 exposed to the ground, and the exposed pipe 36 (insertion pipe 32) is inserted into the planting 11. A blowout port 31 is formed in the exposed pipe 36, and blown air (indicated by a thick arrow in the figure) blows out from the blowout port 31. The structure of the outlet 31 is the same as that of the first embodiment.

  According to the outside air cooling structure 1b configured as described above, a part of the exhaust pipe 30b is constituted by the buried pipe 35 embedded in the ground 6, so that the air conditioning exhaust from the air conditioning equipment 3 is the outside air temperature. The cooling effect by exhaust can be enhanced. This is because the ground 6 is stable at about 15 ° C. throughout the year, so that the air-conditioning exhaust is further cooled by the time it reaches the exposed pipe 36 and cold exhaust can be supplied to the walking space 4. It is.

  Specifically, as the heat relaxation effect, when the outside air is 33 ° C. and the room is 26 ° C., the walking space 4 is about 20 ° C., and a cooling effect of about 13 ° C. can be expected. Thereby, it turns out that the cold in the ground 6 is used effectively.

  In addition, in this embodiment, although the exhaust piping 30b is extended and formed to the upper end part of the planting 11, it is not limited to this, Like 1st embodiment, the exhaust piping 30b The upper end portions may be communicated with each other. Also in this case, it is preferable to cover the piping to be communicated with planting or the like.

  In addition, the air conditioning equipment 3 to be connected is not limited to the one installed on the ground floor, and the exhaust pipe is connected to the air conditioning equipment (not shown) installed on the ground floor to make a detour in the ground. You may do it.

(Third embodiment)
Next, a third embodiment for carrying out the present invention will be described in detail with reference to the attached drawings. As shown in FIG. 3, the outside air cooling structure 1 c according to the third embodiment includes an embedded pipe 35 through which the air supply means 29 introduces air and passes through the ground, and extends from the buried pipe 35 to the water retention means 10. The exposed pipe 36 and the blower means 38 for sending air to the buried pipe 35 are provided. In addition, since the structure of the water retention means 10 is the same as that of 1st embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The buried pipe 35 is connected to an intake pipe 37 whose base end portion opens to the outside. The buried piping 35 is buried at a predetermined depth in the ground 6, and branches from the planting 11 toward the planting 11 and stands up. An exposed pipe 36 is continuously formed on the upper portion of the raised portion. The exposed pipe 36 is inserted into the planting 11. A blowout port 31 is formed in the exposed pipe 36, and blowout air (shown by a thick line arrow in the figure) blows out from the blowout port. A plurality of outlets 31 are provided at a predetermined pitch in the vertical direction. The outlet 31 is formed at a position facing the walking space 4, and the blowing air is blown out toward the walking space 4. Note that the buried pipe 35 and the exposed pipe 36 have the same configuration as that of the tip side from the underground part of the exhaust pipe 30b of the second embodiment.

  The intake pipe 37 is provided with a blower fan 38 that blows outside air to the buried pipe 35 and the exposed pipe 36. The air blowing means 38 is not limited to the air blowing fan.

  According to the outside air cooling structure 1c having the above-described configuration, the following effects can be obtained in addition to the heat relaxation effect similar to that of the above embodiment. That is, in the outside air cooling structure 1c according to the present embodiment, the outside air is cooled by using the cold in the ground without connecting the piping to the air conditioning equipment, so it is installed even if it is not in the vicinity of the building. be able to.

(Fourth embodiment)
Next, a fourth embodiment for carrying out the present invention will be described in detail with reference to the attached drawings. As shown in FIG. 3, the outside air cooling structure 1 d according to the fourth embodiment is provided with an artificial water retaining body 20 having a configuration different from the planting 11 in addition to the planting 11 as the water retaining means 10. Since the planting 11 and the exhaust pipe 30 according to the present embodiment are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

  As the artificial water retaining body 20, for example, a non-woven fabric or a woven fabric, or a building material provided with water retention ability or a net made of chemical fiber can be used. In the present embodiment, the nonwoven fabric 21 is employed as the artificial water retaining body 20. The nonwoven fabric 21 is wound around the insertion portion 32 of the exhaust pipe 30 to the planting 11 and covers all the outlets 31. The outlet 31 of the exhaust pipe 30 is covered. The nonwoven fabric 21 has both water retention and air permeability. A water supply device 22 for supplying moisture to the nonwoven fabric 21 is further provided.

  The water supply device 22 includes a tank 23 for storing water (tap water, rainwater, etc.), a water supply pipe 24 connected to each nonwoven fabric 21 from the tank 23, and a pump 25 provided in the water supply pipe 24. One end of the water supply pipe 24 is connected to the tank 23. The water supply pipe 24 is laid along the exhaust pipe 30 above the walking space 4 and branches toward the upper end of each nonwoven fabric 21. The front end (lower end) of the water supply pipe 24 is open so that water can be supplied to the nonwoven fabric 21. Although not shown, when the artificial water retaining body is a building material having water retention capacity, a water supply pipe is inserted into the building material, and from the water supply holes formed at predetermined intervals in the inserted water supply pipe. It is good also as a structure which supplies water. The pump 25 is connected to, for example, a solar power generation device 26 provided on the roof of the building 2, and uses electric power generated in-house as a power source.

  According to the outside air cooling structure 1d configured as described above, the following operational effects can be obtained in addition to the operational effects equivalent to those of the first embodiment. According to the present embodiment, a large amount of moisture can be retained in the nonwoven fabric 21, and a large amount of moisture can be evaporated from the nonwoven fabric 21 by passing air through the nonwoven fabric 21 that retains a large amount of moisture. Thus, a high heat relaxation effect can be obtained by heat of vaporization caused by water evaporation. Furthermore, by supplying water with the water supply device 22, the nonwoven fabric 21 can always be kept in a water retaining state, so that the amount of moisture evaporated can be increased. Moreover, the water supply apparatus 22 can also supply water to the planting 11.

  In the present embodiment, the artificial water retaining body 20 made of the nonwoven fabric 21 is wound in contact with the exhaust pipe 30 so that the blown air passes through the nonwoven fabric 21. However, when a plate-shaped building material or the like is used. May be arranged so as to cover the outlet 31 with a gap, and the blowing air may be blown against the building material retained. Even with such a configuration, water can be efficiently evaporated.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to the said embodiment, A design change is possible suitably in the range which does not deviate from the meaning of this invention. For example, in 4th embodiment, although the planting 11 and the artificial water retention body 20 are employ | adopted simultaneously as the water retention means 10, it is not limited to this, You may employ | adopt only the artificial water retention body 20. FIG. Moreover, you may make it employ | adopt the artificial water holding body 20 according to the water holding means 10b of 2nd embodiment.

DESCRIPTION OF SYMBOLS 1 Outside air cooling structure 2 Building 3 Air-conditioning equipment 10 Water retention means 11 Planting 20 Artificial water retaining body 21 Non-woven fabric 22 Water supply device 29 Air supply means 30 Exhaust pipe 31 Outlet 35 Buried pipe 36 Exposed pipe 38 Blower means

Claims (5)

Water retention means provided outside the building, and air supply means for supplying air having a temperature lower than the outside air to the water retention means,
The air supply means is formed with a blow-out opening toward the heat relaxation target space to be cooled , and the water in the water retention means is evaporated by the air blown from the blow-out opening. Outside air cooling structure. The said air supply means is provided with the air-conditioning equipment installed in the said building, and the exhaust pipe which supplies the air exhausted from this air-conditioning equipment to the said water retention means, The structure of Claim 1 characterized by the above-mentioned. Outside air cooling structure. The air supply means includes an embedded pipe that introduces air and passes through the ground, an exposed pipe that extends from the embedded pipe to the water retention means, and a blower that sends air to the embedded pipe. The outside air cooling structure according to claim 1 or 2, wherein the outside air cooling structure is provided. The water retention means is configured with planting,
The outside air cooling structure according to any one of claims 1 to 3, wherein the exhaust pipe is disposed so that the outlet is located inside the planting. The outside water cooling structure according to any one of claims 1 to 4, wherein the water retaining means includes an artificial water retaining body that covers the outlet.

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