JP5534847B2 - Building cooling system - Google Patents

Description

  The present invention relates to a building cooling facility for cooling the periphery of a building.

  In a building such as a house, a technique for cooling the building using water has been proposed. For example, Patent Document 1 describes a configuration including a collection unit that collects water such as rainwater and a water discharge unit that sprays the collected water to a building. According to this structure, the whole building can be cooled directly from the outside by the water sown by the water discharge means.

JP 2002-30703 A

  However, in a configuration in which water is sprayed on the building by the water discharge means, there is a concern that the water sprinkled on the building peripheral surface such as the roof surface or the wall surface, thereby contaminating the building peripheral surface. In addition, in a building provided with a solar panel that generates power by being irradiated with sunlight, it is feared that not only the peripheral surface of the building but also the peripheral surface of the solar panel becomes dirty due to watering. Therefore, there is room for improvement regarding the configuration for cooling the space around the building.

  The main object of the present invention is to suitably cool a space around a building.

  In order to solve the above-mentioned problem, the building cooling facility according to the first aspect of the present invention is an outdoor part of a building around a solar panel that generates power when irradiated with sunlight, and is a light receiving place capable of receiving sunlight. Vaporizing means for vaporizing water, wherein the vaporizing means is provided with water supply means for supplying water required for the vaporization, and a vaporization member provided at the light receiving location for vaporizing water supplied by the water supply means It is characterized by having.

  According to 1st invention, the water supplied by the water supply means is vaporized in the vaporization member. In this case, since water is actively vaporized around the solar panel in the outdoor part of the building, the space around the building and the solar panel can be cooled by the heat of vaporization. Therefore, unlike the configuration in which direct watering is performed on the building and the solar panel, it is possible to suppress the inconvenience that the peripheral surface of the building and the peripheral surface of the solar panel are contaminated by scales or the like. As a result, the space around the building can be suitably cooled by the heat of vaporization of water.

  In the second invention, the water supply means includes means for estimating a water vaporization rate in the vaporization member based on an outdoor environment, and means for supplying water based on the estimated water vaporization rate.

  According to the second aspect of the invention, since water is supplied to the vaporizing member in accordance with the vaporization rate of the water in the vaporizing member, it is possible to supply water to the vaporizing member as much as it vaporizes. In this case, it is possible to prevent the supply of surplus water that is not used for vaporization, and as a result, the surplus water is prevented from overflowing from the vaporization member and adhering to the building surface or the solar panel surface as dirt such as scale. it can.

  In a third aspect of the invention, the building includes a bowl-shaped member protruding to the side of the building, the vaporizing member is provided on the bowl-shaped member, and vaporizes on both the upper surface side and the lower surface side of the bowl-shaped member. I do.

  According to the third aspect of the present invention, vaporization is performed by the vaporizing member on the lower surface as well as the upper surface capable of receiving sunlight in the bowl-shaped member. Can be cooled. Therefore, the space that can be cooled by the heat of vaporization can be increased as compared with the configuration in which vaporization is performed on one of the upper surface and the lower surface of the bowl-shaped member. That is, a space as large as possible around the building and the solar panel can be set as a cooling target.

  In 4th invention, the said hook-shaped member is provided above a building opening part, and has a ventilation part which penetrates this hook-shaped member up and down.

  According to the fourth aspect of the present invention, in the configuration in which the bowl-shaped member is provided above the building opening, air flows downward through the ventilation section, so that the air around the bowl-shaped member is The flow of air promotes the flow into the periphery. Thereby, the periphery of a building opening part can be cooled, and by extension, the space in a building can be cooled through a building opening part.

  In a fifth aspect of the present invention, the bowl-shaped member includes a plurality of slats arranged side by side, and the vaporizing member is provided in each of the plurality of slats, and a gap between adjacent slats in the plurality of slats. Is the ventilation section.

  According to the fifth aspect of the present invention, since the slat as the vaporizing portion and the gap between the slats as the ventilation portion are alternately arranged in the bowl-shaped member, the air flowing downward through the ventilation portion around the slat It becomes easy to get the cooled air by water vaporization. Therefore, it is convenient to cool the periphery of the building opening provided below the bowl-shaped member.

  In a sixth aspect of the invention, the vaporizing member is made of a hygroscopic material capable of absorbing and releasing water supplied by the water supply means.

  According to the sixth invention, since water is absorbed by the entire vaporizing member and the vaporization of water is performed on the entire peripheral surface of the vaporizing member, it is easy to vaporize all the water supplied to the vaporizing member. Can do. Thereby, the vaporization efficiency of the water in a vaporization member can be improved. That is, the cooling efficiency of the space around the vaporizing member can be increased.

  In a seventh aspect of the invention, the roof includes a roof inclined downward toward the eaves, and the solar panel is applied to a building provided along the inclined surface of the roof on the roof. It is provided adjacent to the solar panel on the inclined surface of the roof and on the eaves side of the solar panel.

  According to the seventh aspect of the present invention, when the solar panel is heated by sunlight and an upward airflow that flows upward along the solar panel is generated, the air cooled by the vaporization of water in the vaporizing member rises. Riding on the air current will reach the solar panel. In this case, the solar panel can be cooled by water vaporization.

  In an eighth aspect of the invention, the water supply means has a water supply pipe provided along the lower surface of the solar panel and having a high thermal conductivity.

  According to the eighth invention, when water is supplied to the vaporizing member through the water supply pipe, the water supply pipe is cooled by taking heat away from the water, and the solar panel is cooled accordingly. In this case, since the solar panel is cooled by both the arrival of air cooled by vaporization of water and the loss of heat by the water, the cooling efficiency of the solar panel can be increased.

The perspective view which shows the structure of the roof periphery of the building in 1st Embodiment. The figure for demonstrating the structure of a collar part. The top view around a buttock in a roof. The figure for demonstrating the structure of the roof in 2nd Embodiment. The schematic sectional drawing which shows the structure around the piping for circulation in a roof. The schematic sectional drawing which shows the structure around the piping for circulation in another roof.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the configuration around the roof 12 in the building 10, and FIG. 2 is a diagram for explaining the configuration of the flange 33. In FIG. 2, (a) shows a schematic plan view around the second floor portion 16, and (b) shows an enlarged view of the flange 33.

  As shown in FIGS. 1 and 2, a building 10 such as a house has a building main body 11 and a roof 12 provided above the building main body 11. The building body 11 has a first floor portion 15 and a second floor portion 16, and a living room 19 such as a bedroom and a balcony 21 are provided on the second floor portion 16. The living room 19 is a building space, and the balcony 21 is an outdoor space opened to the outside. The living room 19 and the balcony 21 are partitioned by an outer wall 23 and communicated by a window portion 25 as a building opening formed in the outer wall 23. The window 25 is provided with a sash door 26 as an opening / closing body. When the sash door 26 is opened, the living room 19 is ventilated through the window 25.

  The roof 12 is a gable roof, and the roof surface 12a that is the finished surface of the roof 12 is formed of a roof finishing material such as a tile. In the roof 12, the eaves tip 32 is lower than the top 31, and the roof surface 12 a is inclined downward from the top 31 toward the eaves 32. Above the window portion 25, a collar portion 33 formed integrally with the roof 12 is provided. The eaves portion 33 is disposed above the balcony 21 on the eaves 32 side of the roof 12 and extends along the roof surface 12a. The eaves portion 33 corresponds to a eaves-like member protruding to the side of the building 10 and is provided at a light receiving place where sunlight can be received.

  The roof 12 is provided with a plurality of solar panels 41 that generate power when irradiated with sunlight. The solar panels 41 are arranged on the roof 12 and are arranged along the roof surface 12a. In this case, the solar panel 41 is supported by the leg part 42 from below, and the lower surface of the solar panel 41 and the roof surface 12a are separated from each other. Moreover, the solar panel 41 is not provided in the collar part 33, but exists in the side of the collar part 33 and the top part 31 side. In addition, the solar panel 41 is provided in the part in which the roof surface 12a has faced the south side in the roof 12. FIG.

  By the way, as for the solar panel 41, when own temperature rises with irradiation of sunlight, power generation efficiency may fall. In addition, when the temperature of the balcony 21 or the living room 19 rises during the summer, the person may feel uncomfortable due to the heat on the balcony 21 or the living room 19. Therefore, in the present embodiment, the building 10 is provided with a water cooling facility, where the solar panel 41 is cooled by the air that is vaporized on the surface of the flange 33 and cooled by the heat of vaporization, or the balcony 21. And lowering the temperature of the living room 19 is realized.

  First, the structure of the collar part 33 is demonstrated.

  As shown in FIG. 2, the flange 33 has a plurality of slats 45. The slat 45 is formed in a long plate shape by a moisture absorbing / releasing material capable of absorbing and releasing water. The hygroscopic material is a porous material having a large number of minute pores on the surface, and examples of the porous material include a wood-based material and a ceramic material. Here, it is assumed that the slat 45 is made of wood. Note that the slats 45 may be formed of a processed product of wood.

  The slats 45 extend along the eaves 32 of the roof 12, and the plate surface of the slats 45 faces upward on the south side at an inclination angle different from that of the roof surface 12a. In addition, the upper surface of the slat 45 is a light receiving surface on which sunlight is irradiated. Moreover, the slat 45 has a light shielding property and serves as a sunshade member that blocks sunlight.

  Each slat 45 is arranged in parallel with each other. Here, each slat 45 is located side by side from the eaves edge 32 toward the top 31 in accordance with the inclination angle of the roof surface 12a. Adjacent slats 45 are separated from each other, and a ventilation gap is formed between the slats 45. The separation distance between the slats 45 is such that the upper and lower ends of the slats 45 overlap each other when the flanges 33 are viewed from the inclination angle of the roof surface 12a, and sunlight is irradiated to the flanges 33. The solar light is less likely to be irradiated onto the balcony 21 through the ventilation gap.

  A slat water supply pipe 47 for supplying water to the inside of the slat 45 is attached to the slat 45. Specifically, an insertion hole 48 for inserting the slat water supply pipe 47 is formed inside the slat 45, and the insertion hole 48 extends in the longitudinal direction of the slat 45. The slat water supply pipe 47 is housed inside the outer peripheral surface of the slat 45 by being inserted into the insertion hole 48, and a discharge hole (for discharging water from the inside of the pipe to the outside of the pipe) is formed in the pipe wall of the slat water supply pipe 47. (Not shown) is formed. The discharge holes penetrate the tube wall and are provided with a large number of small diameters.

  When water is supplied to the slat water supply pipe 47 with respect to the slat 45, the water flows out from the inside of the slat water supply pipe 47 into the slat 45 through the discharge hole, and permeates through the slat 45 toward the peripheral surface of the slat 45. As a result, the slat 45 is moisturized as a whole, and water can be vaporized from the peripheral surface of the slat 45. Accordingly, the plurality of slats 45 correspond to vaporizing members that vaporize water.

  Next, a configuration for supplying water to the slats 45 of the flange portion 33 will be described with reference to FIG. FIG. 3 is a plan view of the vicinity of the flange portion 33 on the roof 12.

  As shown in FIG. 3, the building 10 is provided with a storage tank 51, a water supply pump 52, and a panel water supply pipe 53. The storage tank 51 is a water storage means for storing rainwater and tap water, and is provided, for example, on the lower side of the roof 12 or in the ceiling space of the second floor portion 16. The panel water supply pipe 53 connects the storage tank 51 and the slat water supply pipe 47. The panel water supply pipe 53 is formed of a material such as steel having high thermal conductivity, and is provided below the solar panel 41. The panel water supply pipe 53 is provided immediately below the solar panel 41 between the solar panel 41 and the roof 12, and is in contact with the lower surface of the solar panel 41. Therefore, heat exchange is easily performed between the water flowing through the panel water supply pipe 53 and the solar panel 41. Further, the panel water supply pipe 53 is arranged so as to meander, whereby substantially the entire solar panel 41 is subjected to heat exchange with the panel water supply pipe 53.

  The water supply pump 52 includes an electric motor, and supplies water from the storage tank 51 to the slat water supply pipe 47 through the panel water supply pipe 53 by being driven. The water supply pump 52 is built in the storage tank 51, for example. The water supply pump 52 has an adjustment mechanism that adjusts the amount of water supplied per unit time. The adjustment mechanism includes an adjustment unit that adjusts the rotation speed of the electric motor, for example.

  The water supply means includes a storage tank 51, a water supply pump 52, and a panel water supply pipe 53, and the vaporizing member includes a slat 45 and a slat water supply pipe 47. The vaporizing means includes a water supply means and a vaporizing member. The panel water supply pipe 53 corresponds to the water supply pipe.

  In this embodiment, the vaporization control system which controls the vaporization amount of the water from the collar part 33 is constructed | assembled. Here, an electrical configuration related to the vaporization control system will be described.

  The vaporization control system has a controller 55 as control means. The controller 55 includes a microcomputer including a CPU and various memories, and has a storage unit 56 that stores information related to vaporization control. The controller 55 is provided in the building 10 by being attached to the wall surface of the living room 19, for example.

  The controller 55 is connected to an outside air temperature sensor 57 that detects the outside air temperature and a room temperature sensor 58 that detects the temperature of the room 19. These temperature sensors 57 and 58 output detection signals to the controller 55. To do. The outside air temperature sensor 57 is provided outdoors, for example, by being attached to the outdoor side surface of the outer wall 23, and the living room temperature sensor 58 is provided in the living room 19, for example, by being attached to the inner wall surface of the living room 19. It has been.

  A communication device 59 capable of wireless communication or wired communication is connected to the controller 55. The communication device 59 can communicate with the Internet or with an external facility, and the controller 55 acquires weather information through the communication device 59. In addition, a water supply pump 52 is connected to the controller 55, and the controller 55 controls the operation of the water supply pump 52 by outputting a command signal.

  The controller 55 performs a cooling process for cooling the solar panel 41, the balcony 21, and the living room 19. The processing procedure of the cooling process will be briefly described. The controller 55 first determines whether or not the solar panel 41, the balcony 21, and the living room 19 need to be cooled. Here, it is determined whether it is rainy or not based on weather information, and it is determined whether or not the outside air temperature or the room temperature is higher than a predetermined temperature (for example, 25 ° C.). When at least one of them is higher than a predetermined temperature, it is determined that cooling is necessary.

  When it is determined that the solar panel 41 or the like needs to be cooled, the amount of water per unit time supplied from the water supply pump 52 is set according to the outside air temperature, and the water supply pump 52 is driven according to the set value. Here, the evaporating rate (vaporization amount per unit time) from the slat 45 is estimated in the heel part 33, and the water supply rate (water supply amount per unit time) from the water supply pump 52 is set based on the estimated vaporization rate. . Specifically, the relationship between the vaporization rate and the outside air temperature is stored as a map in the storage unit 56, the vaporization rate is estimated according to the current outside air temperature, and the water supply rate is set to a value smaller than the vaporization rate. Set. In this case, since all the water supplied to the slats 45 is vaporized, it is possible to prevent the water that has not been vaporized from overflowing from the flange 33 and adhering to the outer wall 23.

  In addition, a vaporization rate becomes large, so that outside temperature is high, and the water supply rate to the slat 45 will be set large. For example, if the outside air temperature is 25 ° C., the water supply rate is set to the first specified rate, and if the outside air temperature is 30 ° C. higher than 25 ° C., the water supply rate is set to the second specified rate larger than the first specified rate.

  When water is supplied to the slats 45 of the heel part 33, the vaporization of water from the circumferential surface of the slats 45 in a wet state is promoted by the heat of sunlight, wind, etc., and the heat of vaporization causes outside air around the heel part 33 Is cooled and becomes cold. In this case, when the upper surface (light-receiving surface) of the solar panel 41 becomes hot due to sunlight, and an upward airflow that flows from the eaves 32 toward the top portion 31 along the upper surface of the solar panel 41 is generated, the flange 33 The nearby cool air rides on the rising airflow and flows to the top 31 side, and reaches the solar panel 41 on the top 31 side from the flange 33. That is, the solar panel 41 is cooled by the vaporization in the collar portion 33.

  Further, when a flow of outside air that passes through the flange 33 from below through the gap between the slats 45 is generated, the cold air reaches the balcony 21 along the flow. That is, the temperature of the balcony 21 decreases due to vaporization in the heel part 33. Further, when the window 25 is opened and a flow of outside air from the balcony 21 toward the living room 19 is generated, the cold air reaches the living room 19 along the flow. That is, the temperature of the living room 19 decreases due to the vaporization in the buttocks 33.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  Since the slat 45 exposed to the outdoor side in the heel part 33 has moisture absorption / release properties, water is vaporized from the surface of the slat 45 by moistening the slat 45 with water, and the slat 45 is heated by the heat of vaporization. The surrounding air can be cooled. In this case, the cooled air flows into the vicinity of the solar panel 41, the balcony 21, and the living room 19, thereby cooling the solar panel 41, the balcony 21, and the living room 19.

  In addition, since the panel water supply pipe 53 is connected to the slat 45 of the flange portion 33, the water in the storage tank 51 is directly supplied into the slat 45 through the panel water supply pipe 53. In this case, for example, unlike the configuration in which water is sprayed on the slats 45 from above the flange portion 33, when the slats 45 are supplied with water, the roof 12 and the outer wall 23 are prevented from getting wet. In addition, since the water supply rate to the slats 45 of the collar portion 33 is smaller than the vaporization rate from the slats 45, it is possible to avoid supplying excess water that does not evaporate to the slats 45, and thus vaporization. It can be avoided that the water that has not flown down from the flange 33 or adheres to the outer wall 23. Therefore, when the air around the slats 45 is cooled by the heat of vaporization of water, it is possible to suppress the peripheral surface of the building 10 from being contaminated with water scale.

  As a result, the air around the building 10 can be suitably cooled.

  Since the ventilation gap is formed between the slats 45 in the flange portion 33, not only the air flows along the upper surface and the lower surface of the flange portion 33 around the flange portion 33, but also in the vertical direction through the gap between the slats 45. It is possible to flow. In this case, if the air flows downward through the gap, the cold air generated by the heat of vaporization can flow into the balcony 21 from the periphery of the flange 33 by being put on the flow. Therefore, the cooling range by the heat of vaporization of water can be further expanded. In addition, since the window portion 25 is formed below the collar portion 33, the cool air due to the heat of vaporization can flow into the living room 19 through the window portion 25. On the other hand, a cooling effect can be imparted.

  Further, since the plurality of slats 45 are separated from each other, the slats 45 and the gaps between the slats 45 are alternately arranged, and air cooled by vaporization of water around the slats 45 is slats 45. It becomes easy to flow down from the gap between them. Therefore, the cooling efficiency in the lower part of the collar part 33 can be improved.

  Since the solar panel 41 is provided above the eaves part 33 between the eaves 32 and the top part 31 of the roof 12, the air around the eaves part 33 cooled by the heat of vaporization of the water is around the solar panel 41. It is easy to flow around the solar panel 41 on the rising air current. Therefore, the solar panel 41 can be efficiently cooled.

  When water is supplied to the slats 45 in the collar portion 33, the entire slats 45 are moistened, so that the portion where the water vaporizes can be the entire peripheral surface of the slats 45. In this case, since the air around both surfaces of the upper surface and the lower surface of the flange portion 33 is cooled by the heat of vaporization, for example, water is vaporized on one of the upper surface and the lower surface, or water is vaporized on one side surface of the outer wall 23. The space to be cooled can be increased compared to the configuration to be performed. That is, the range in which the outside air cooled by the heat of vaporization flows can be widened.

  Since the collar portion 33 has a plurality of slats 45 and water is individually supplied from the panel water supply pipe 53 to each of the slats 45, for example, water is supplied to one member of the collar portion 33. Compared with the configuration, all the slats 45 can be efficiently moistened. Further, since the slat water supply pipe 47 is inserted into the insertion hole formed in the slat 45, and the slat water supply pipe 47 extends along the longitudinal direction of the slat 45, the entire slat 45 is uniformly moistened. can do. As a result, the water vaporization efficiency in the slats 45 can be increased.

  A panel water supply pipe 53 having a high thermal conductivity is provided directly below the solar panel 41, and water is supplied to the slats 45 through the panel water supply pipe 53. Therefore, when the water is vaporized in the slats 45, the panel water supply pipe 53 is provided. The solar panel 41 can be cooled by heat exchange with the water inside.

(Second Embodiment)
Although the said 1st Embodiment set it as the structure which cools the solar panel 41, the balcony 21, etc. with the heat of vaporization of water, 2nd Embodiment sets it as the structure which raises the heating effect of the building 10 with the heat of sunlight. 4A and 4B are diagrams for explaining the configuration of the roof 12. FIG. 4A shows a schematic cross section of the building 10, and FIG. 4B shows a schematic plane of the roof 12.

  As shown to Fig.4 (a), the solar panel 41 is not provided in the roof 12, but the piping 71 for circulation for circulating antifreeze liquid along the roof surface 12a is provided. The circulation pipe 71 is made of a metal material having a high thermal conductivity. Here, the roof 12 has a sunlight part 61 that is easily irradiated with sunlight and a non-sunlight part 62 that is not easily irradiated, and the circulation pipes 71 are disposed in both the sunlight part 61 and the non-sunlight part 62, respectively. Has been. In addition, the sunlight part 61 is a part in which the roof surface 12a faces the south side, and the non-sunlight part 62 is a part in which the roof surface 12a faces the north side.

  As shown in FIG. 4B, the circulation pipe 71 is arranged so as to meander along the roof surface 12a in both the sunlit portion 61 and the non-sunlit portion 62 of the roof 12. Of the circulation pipe 71, the part arranged in the sunlight part 61 and the part arranged in the non-sun part 62 are connected, and the antifreeze flowing through the circulation pipe 71 travels between the sunlight part 61 and the non-sun part 62. Will do.

  A circulation pump 72 is connected to the circulation pipe 71. The circulation pump 72 includes an electric motor, and the antifreeze flows through the circulation pipe 71 by being driven. Here, both ends of the circulation pipe 71 are connected via the circulation pump 72, and the antifreeze liquid continues to flow through the circulation pipe 71. The liquid flowing through the circulation pipe 71 may be water instead of antifreeze. In short, any liquid having thermal conductivity may be used.

  In this embodiment, heat is applied to the antifreeze in the circulation pipe 71 by irradiating the roof surface 12a with sunlight, and the heating effect is given to the indoor space by the heat. Here, the roof 12 has a configuration in which sunlight heat is easily applied to the circulation pipe 71. Here, the configuration of the roof 12 will be described with reference to FIG. FIG. 5 is a schematic cross-sectional view showing a configuration around the circulation pipe 71 in the roof 12.

  As shown in FIG. 5, the roof 12 includes a rafter 75, a field plate 76, and a tile 77. The roof tile 77 is placed on the field board 76 and is fixed to the field board 76 and the rafter 75 by a fixing member such as a screw. A waterproof material such as a waterproof sheet is provided under the tile 77 (indoor side), and the waterproof performance is imparted to the roof 12 by the waterproof material. Note that the roof tile 77 may be placed on the base plate 76 through a pier and fixed to the pier with a screw or the like. Further, the tile 77 is included in the roof finishing material forming the roof surface 12a, and the rafter 75 and the field board 76 are included in the roof base material.

  The roof tile 77 is made of a metal material having a high thermal conductivity. The roof tile 77 has a fixed portion 77a fixed to the base plate 76 and an exposed portion 77b exposed to the outdoor side. The exposed portion 77 b is formed in a plate shape, is spaced upward from the field plate 76 and extends substantially parallel to the field plate 76. A plurality of tiles 77 are arranged along the field plate 76, and the adjacent tiles 77 are arranged so as to overlap a part of each field plate 76. The tiles 77 are arranged side by side and vertically with respect to the inclination of the roof 12.

  The circulation pipe 71 is provided immediately below the exposed portion 77 b of the roof tile 77. The circulation pipe 71 is disposed between the exposed portion 77b of the roof tile 77 and the base plate 76, and is in contact with or close to the lower surface of the exposed portion 77b. The circulation pipe 71 extends in the horizontal direction, and is fixed by a fixing means such as a stopper so as not to move to the eaves side or the top side of the roof 12. The circulation pipe 71 is provided above (on the outdoor side) the waterproof material of the roof 12. Therefore, it is avoided that the waterproof performance of the roof 12 is deteriorated due to the installation of the circulation pipe 71.

  When the roof tile 77 is heated by sunlight, heat exchange between the roof tile 77 and the antifreeze liquid is performed through the pipe wall of the circulation pipe 71, and the antifreeze liquid is heated. Furthermore, the heat of the antifreeze liquid is transmitted to the indoor side, so that the temperature of the building space rises and the heating effect of the building space is enhanced.

  A controller 55 is electrically connected to the circulation pump 72, and the controller 55 drives the circulation pump 72 based on the outside air temperature or the indoor temperature. Specifically, it is determined whether or not the outside air temperature or the room temperature is lower than a predetermined temperature (for example, 15 ° C.). If the temperature is lower, the circulation pump 72 is driven and the sun 12 and non-sun 62 on the roof 12 To circulate the antifreeze. In this case, the antifreeze liquid heated by sunlight in the sunlight part 61 moves to the non-sunlight part 62, and the heat of the antifreeze liquid is applied to the space below the non-sunlight part 61 in the space inside the building in addition to the space below the sunscreen part 61. Will be transmitted. Thereby, the heating effect of the whole space in a building can be heightened by circulating antifreeze.

  The circulation pump 72 may have an adjustment mechanism that adjusts the circulation amount per unit time. The adjustment mechanism includes an adjustment unit that adjusts the rotation speed of the electric motor, for example. In this case, for example, the controller 55 increases the circulation speed of the antifreeze liquid as the outside air temperature increases, and decreases the circulation speed of the antifreeze liquid as the outside air temperature decreases.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  Since the circulation pipe 71 is provided along the roof surface 12a, the antifreeze liquid flowing through the circulation pipe 71 is not discharged but is circulated in the roof 12. Therefore, when sunlight is irradiated onto the roof surface 12a, the heat imparted to the antifreeze liquid is present on the roof 12 together with the antifreeze liquid without being discharged. In this case, for example, the heat in the building 10 can be prevented from escaping from the roof 12 to the outside in winter, and the heat of sunlight can be applied from the roof 12 to the space in the building. That is, the heating efficiency of the space in a building can be improved.

  Since the antifreeze is circulated between the sunlit portion 61 and the non-sunlit portion 62 on the roof 12, the heat of sunlight applied to the sunlit portion 61 can be applied to the non-sunlit portion 62. Therefore, the heating efficiency of the space below the non-sunlight part 62 (north part) which is not easily irradiated with sunlight as well as the space below the sunlight part 61 (south part) irradiated with sunlight can be improved.

(Other embodiments)
The present invention is not limited to the description of each embodiment described above, and may be implemented as follows, for example.

  (1) In 1st Embodiment, the slat 45 which comprises a vaporization member should just be formed at least partially with the moisture absorption / release material. For example, the slat 45 is made of a metal material, and a large number of radial holes extending radially from the inside of the slat 45 toward the peripheral surface are provided. In this configuration, a water retaining material having a high water retention capacity such as a sponge is inserted into the radial hole, and the radial hole communicates with the inside of the slat water supply pipe 47. In this case, when water is supplied to the slat water supply pipe 47, the water flows into the radial holes from the slat water supply pipe 47, makes the water retaining material wet, and vaporizes from the vicinity of the peripheral surface of the slat 45 in the water retaining material. Therefore, the air around the slats 45 can be cooled by water vaporization.

  (2) In the first embodiment, the slat 45 may not be provided with the slat water supply pipe 47. For example, the slat water supply pipe 47 is not inserted into the insertion hole 48 of the slat 45, and the panel water supply pipe 53 is connected to the insertion hole 48. Even in this configuration, water can be supplied into the slat 45.

  (3) In 1st Embodiment, the clearance gap between the slats 45 of the collar part 33 does not need to be formed. That is, the ventilation part which penetrates the collar part 33 up and down does not need to be formed. Further, the upper surface and the lower surface of the flange 33 are not formed by the plurality of slats 45 but may be formed by one member.

  (4) In 1st Embodiment, the air blower which forcibly sends the air around the collar part 33 to another space may be provided. For example, the air around the upper surface of the collar portion 33 is sent to the solar panel 41 side by the blower. Moreover, it is set as the structure by which the air of the lower surface periphery of the collar part 33 is sent to the balcony 21 or the living room 19 with a ventilation apparatus. Thereby, the outside air cooled by the heat of vaporization of water can be supplied to a wider space.

  (5) In the first embodiment, the panel water supply pipe 53 may be provided below the roof finishing material (indoor side). Further, the water in the storage tank 51 may be directly connected to the slat water supply pipe 47 without passing through the panel water supply pipe 53.

  (6) In 1st Embodiment, the vaporization member comprised by the slat 45 etc. may be provided in the roof 12 or the outer wall 23 instead of the collar part 33. FIG. In this case, the air around the roof 12 and the outer wall 23 can be cooled by the heat of vaporization of water.

  (7) In 2nd Embodiment, it is good also as a structure which the antifreeze as a liquid flows through the inside of roof finishing materials, such as the tile 77, instead of the piping 71 for circulation. For example, as shown in FIG. 6, the tile 81 as the roofing material has a flowing water portion 82 through which the antifreeze liquid flows. The flowing water part 82 extends in the horizontal direction at the end of the tile 81, and the adjacent tiles 81 on the roof 12 are arranged at positions where the flowing water parts 82 are connected to each other. In this case, the circulation pipe 71 is formed by connecting the flowing water portions 82 of the plurality of roof tiles 81.

  (8) In the second embodiment, the circulation pipe 71 may be provided on the outer wall. For example, it is assumed that the circulation pipe 71 is provided along the outdoor side surface of a portion of the outer wall that is not easily irradiated with sunlight. In this case, when the antifreeze liquid heated in the sunlight 61 of the roof 12 flows into the outer wall 23, heat is applied to the outer wall 23, so that the heating effect of the building interior space on the outer wall 23 side can be enhanced.

  (9) In the second embodiment, the building 10 is provided with the eaves portion 33, water flows through the circulation pipe 71, and the water is supplied to the slats 45 of the eaves portion 33. For example, a slat water supply pipe 47 is connected to the circulation pipe 71, and a switching valve for flowing water to either the circulation pipe 71 or the slat water supply pipe 47 at a branch point between the circulation pipe 71 and the slat water supply pipe 47. It is set as the structure provided. According to this configuration, by circulating water through the circulation pipe 71, the heating efficiency of the space in the building can be increased, while the switching valve is operated to supply water to the slat water supply pipe 47. The space around the flange 33 can be suitably cooled. In this case, since the water flowing through the circulation pipe 71 can be replaced by vaporizing water from the slats 45, the inside of the circulation pipe 71 can be kept hygienic.

  DESCRIPTION OF SYMBOLS 10 ... Building, 12 ... Roof, 25 ... Window part as building opening part, 32 ... Eaves edge, 33 ... Eaves part as bowl-shaped member, 41 ... Solar panel, 45 ... Slat which comprises vaporization means and vaporization member, 47 ... Slat water supply pipes constituting vaporization means and vaporization member, 51 ... Storage tank constituting vaporization means and water supply means, 52 ... Water supply pump constituting vaporization means and water supply means, 53 ... Vaporization means, water supply means And a panel water supply pipe constituting the water supply pipe, 55... A controller constituting the vaporization means and the water supply means.

Claims (6)

A solar panel that includes a roof inclined downward toward the eaves and that generates power when irradiated with sunlight is applied to a building provided on the roof along the inclined surface of the roof,
As an outdoor part of the building around the solar panel, the roof has a vaporization means for evaporating water at the eaves part protruding toward the eaves toward the eaves and capable of receiving sunlight.
The vaporizing means includes
Water supply means for supplying water required for the vaporization;
A vaporizing member that is provided in the heel portion adjacent to the solar panel on the inclined surface of the roof, and vaporizes the water supplied by the water supply means,
A building cooling system characterized by comprising: Before SL vaporization member has a vent extending through the vaporizing member vertically, building cooling equipment according to claim 1, characterized in that the vaporization in both the upper and lower sides of the visor portion. Before SL vaporization member is in a state of being exposed on the upper and lower side of the eaves portion includes a plurality of slats arranged side by side at predetermined intervals along the extending direction of the eaves portion from the roof,
The building cooling equipment according to claim 1 or 2 , wherein in the adjacent slats , an upper end of one slat and a lower end of the other slat overlap each other in a thickness direction of the flange portion . The water supply means
Means for estimating a water vaporization rate in the vaporization member based on an outdoor environment;
Means for setting a water supply rate to the vaporization member to a value smaller than the vaporization rate of the water;
Means for supplying water to the vaporizing means at the set water supply rate ;
The building cooling equipment according to any one of claims 1 to 3, wherein: The vaporizing member, building cooling according to any one of claims 1 to 4, characterized in that it is constituted by a moisture-absorbing and desorbing material capable absorption and release of water supplied by the water supply means Facility. The building according to any one of claims 1 to 5 , wherein the water supply means includes a water supply pipe provided along a lower surface of the solar panel and having high thermal conductivity. Cooling equipment.

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