JP2017096504A - Window system, hot water supply system and air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology capable of improving a heat shielding method from sunlight at windowsills of a building with glass windows.SOLUTION: A window system according to one aspect of this invention includes: an inside glass material arranged on an indoor side; an outside glass material arranged on an outdoor side opposite to the inside glass material, and having a lens function part configured to refract direct solar radiation of sunlight on at least one portion thereof; a heat collection body having a heat collection surface configured to collect sunlight, and arranged between the outside glass material and the inside glass material so that the direct solar radiation refracted by the lens function part enters the heat collection surface.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technology of a window system, a hot water supply system, and an air conditioning system.

  In recent high-rise buildings, exterior glass-walled structures are frequently used for the purpose of reducing the load imposed on the structural members of columns and beams by reducing the weight of the exterior, thereby reducing the size of the structural members and reducing costs. ing. In this exterior glass-clad structure, the treatment of solar heat that passes through the glass and flows into the room is a problem.

  Conventionally, in order to solve such a problem, a double-structure (double skin structure) in which a glass wall is provided on the outer side and the inner side of an outer wall is employed in a building with an exterior glass-clad structure. In the air conditioning system according to this double skin structure, solar heat is shielded by an intermediate layer formed between the outer and inner glass walls, and air is flown so as to exhaust the heat generated in the intermediate portion. Thereby, in the said air conditioning system, the thermal environment of a window edge periphery part (perimeter zone) can be controlled, and the solar heat which flows in into a room | chamber interior can be processed (for example, patent document 1).

JP 2002-256737 A JP 2014-005958 A

  In a conventional double skin structure, high-performance glass for blocking solar heat is used for a glass wall (glass window), and air blown to an intermediate layer is exhausted outdoors using a fan. However, heat transfer by air is inefficient, and heat trapped in the air in the intermediate layer is re-emitted into the building, so that there is a problem in that the heat shielding efficiency of sunlight is poor.

  On the other hand, as a technique for collecting sunlight, a solar collector that is used on the rooftop of a building is known (for example, Patent Document 2). However, since the conventional solar collector collects all of solar radiation, it completely shields solar radiation. Therefore, there is a problem that such a solar heat collector is unsuitable for use on a window surface of a building.

  In one aspect, the present invention has been made in consideration of such points, and an object of the present invention is to provide a technique capable of improving a solar heat shielding method on a window side of a building having a glass window. is there.

  The present invention employs the following configuration in order to solve the above-described problems.

  That is, a window system according to one aspect of the present invention includes an inner glass material disposed on the indoor side, and a lens disposed on the outdoor side facing the inner glass material and refracting direct solar radiation at least partially. An outer glass material having a functional part, and a heat collector having a heat collecting surface for collecting the sunlight, wherein the outer glass material so that direct solar radiation refracted by the lens functional part hits the heat collecting surface And a heat collector disposed between the inner glass material.

  In the window system according to this configuration, direct solar radiation components having directivity in incident sunlight are refracted by the lens function unit and absorbed by the heat collector disposed between the two glass materials. Therefore, according to the said structure, it can prevent that at least one part of the direct solar radiation component of sunlight penetrate | invades indoors. In addition, in the said window system, the heat | fever of the direct solar radiation component which hits a heat collection body can be confined by the internal space between both glass materials, and a heat collection body. Therefore, according to the said structure, the thermal-insulation efficiency of the sunlight in the window side of the building which has a glass window can be improved.

  Moreover, in the window system which concerns on the said structure, since the scattered solar radiation component of sunlight does not have directivity, the refraction by a lens function part can be disregarded and it can permeate | transmit indoors. Therefore, even when the direct solar radiation component is completely blocked by the lens function part and the heat collector, the scattered solar radiation component can be taken into the room. Therefore, according to the said structure, it can light appropriately indoors, without interrupting all the solar radiation.

  As mentioned above, according to the said structure, the three functions of the heat insulation of solar radiation in a window surface, heat collection, and lighting can be implement | achieved simultaneously. Therefore, it is possible to fundamentally improve the solar heat shielding method on the window side of a building having a glass window, and it is possible to provide a window system suitable for use of the window surface of the building.

  As another form of the window system according to the one aspect, an internal space between the outer glass material and the inner glass material may be a vacuum. In this configuration, heat transfer in the internal space can be blocked by the vacuum, so that the heat collected by the heat collector disposed between the two glass materials is re-radiated indoors. Can be prevented. Therefore, according to the said structure, the thermal-insulation efficiency of the sunlight in the window side of the building which has a glass window can be improved more.

  Moreover, as another form of the window system according to the one aspect, the lens function unit may be constituted by unevenness formed on the surface of the outer glass material. In the said structure, the lens function part of an outer side glass material is implement | achieved by the unevenness | corrugation formed in the surface of the said outer side glass material. That is, in the said structure, what is called a template glass is utilized as an outer side glass material. This template glass can be produced at low cost when mass-produced. Therefore, according to the configuration, when mass-producing the window system according to the present invention, at least the step of attaching the lens member can be omitted compared to the case where the lens member is attached to the outer glass material as a separate body. The manufacturing cost of the window system can be reduced.

  Note that the template glass is a glass material having a concavo-convex pattern on the glass surface mainly by a roll-out manufacturing method. For example, by appropriately selecting a concavo-convex pattern formed on the glass surface, such as a concavo-convex shape pattern of a linear Fresnel lens, the concavo-convex pattern formed on the glass surface functions as a lens function unit that refracts direct sunlight. be able to.

  As another form of the window system according to the one aspect, the lens function unit may be configured by a lens member that is disposed on the indoor side or outdoor side surface of the outer glass material. According to the said structure, since a lens function part is implement | achieved by the lens member, the outer side glass material itself does not need to be provided with the lens function. Therefore, a general glass material used for a window glass can be used as it is as an outer glass material. Therefore, according to the said structure, the window system which concerns on this invention is realizable with a simple structure.

  As another form of the window system according to the above-mentioned one side surface, the lens member may be arranged on the indoor side surface of the outer glass material. According to the said structure, a lens member is arrange | positioned between both glass materials. Therefore, it is possible to prevent the lens member from being exposed to rain and wind, thereby preventing the lens member from becoming dirty.

  As another form of the window system according to the one aspect, the lens member may be composed of a linear Fresnel lens sheet. In the said structure, the condensing property to the heat collection body of direct solar radiation can be improved by employ | adopting a linear Fresnel lens sheet as a lens member which refracts direct solar radiation. Therefore, according to the said structure, the shielding property and heat collecting property of direct solar radiation can be improved.

  Moreover, as another form of the window system according to the one aspect, the outer glass material and the inner glass material may face each other in the horizontal direction, and the heat collector may be composed of a plurality. The plurality of heat collectors may be spaced apart from each other in the vertical direction. In the said structure, while an outer side glass material and an inner side glass material oppose in a horizontal direction, several thermal collectors are spaced apart and arrange | positioned at a perpendicular direction, respectively. Thereby, the direct solar radiation component of sunlight can be appropriately collected by each heat collector. Therefore, according to the said structure, the shielding property and heat collecting property of direct solar radiation can be improved.

  Moreover, as another form of the window system according to the one aspect, the outer glass material and the inner glass material may face each other in the horizontal direction, and the heat collector may be composed of a plurality, A plurality of lens members may be configured. The plurality of lens members may be arranged apart from each other in the vertical direction, and the plurality of heat collectors may be arranged apart from each other in the vertical direction so as to correspond to each of the plurality of lens members. In this configuration, the plurality of lens members are arranged apart from each other in the vertical direction, and the plurality of heat collecting bodies are arranged apart from each other in the vertical direction so as to correspond to each lens member. Therefore, according to the said structure, each lens member and each heat collecting body are arrange | positioned appropriately so that the direct solar radiation refracted by each lens member may be absorbed by each heat collecting body, and the shielding property and heat collecting property of direct solar radiation. Can be increased. Further, the area where the lens member is provided may be smaller than when the entire surface of the outer glass material is covered with the lens member. Therefore, according to the said structure, manufacturing cost can be restrained, improving the shielding property of direct solar radiation.

  As another form of the window system according to the one aspect, the heat collector may be composed of one or a plurality of vacuum tube type heat collectors. In this configuration, the heat collected by the heat collector can be prevented from being radiated again by using a vacuum tube collector as the heat collector. Therefore, according to the said structure, it can prevent that the heat | fever confined in the heat collecting body is re-released in a building, and can improve the thermal-insulation efficiency of a perimeter zone by this.

  As another form of the window system according to the one aspect, the outer glass material and the inner glass material may be opposed to each other in a horizontal direction, and the heat collecting body has a vertical direction of the heat collecting surface. You may arrange | position so that it may face. In this configuration, the scattered solar radiation component shielded by the heat collecting surface can be reduced by directing the heat collecting surface in the vertical direction. Therefore, according to the said structure, the lighting property of scattered solar radiation can be improved.

  As another form of the window system according to the one aspect, the outer glass material and the inner glass material may face each other in a horizontal direction, and the heat collector has a direction inclined from a vertical direction. The heat collecting surface may be oriented so that the outer glass material faces the heat collecting surface. According to the said structure, the direct solar radiation component absorbed by the said heat collection surface can be increased by directing a heat collection surface toward an outer side glass material. Therefore, according to the said structure, the shielding property and heat collecting property of direct solar radiation can be improved.

  A hot water supply system according to one aspect of the present invention is a window system used for a window surface of a building, the window system of any one of the above forms, a heat transfer mechanism for transferring heat, and the heat A hot water storage tank for storing hot water heated by the heat transported by the transport mechanism, and the heat transport mechanism transports the heat collected by the heat collector. According to the said structure, the heat collected by the heat collecting body of the window system can be utilized for hot water supply, improving the thermal-insulation efficiency of the sunlight in the window side of the building which has a glass window.

  An air conditioning system according to one aspect of the present invention is a window system used for a window surface of a building, the window system of any one of the above forms, a heat transfer mechanism for transferring heat, and the heat An air-conditioning mechanism that performs at least one of heating, cooling, and dehumidification using heat transferred by the transfer mechanism, and the heat transfer mechanism transfers the heat collected by the heat collector. According to the said structure, the heat collected by the heat collection body of the window system can be utilized for an air conditioning, improving the heat-shielding efficiency of the sunlight in the window side of the building which has a glass window.

  It is possible to improve the solar heat shielding method on the windows of a building having a glass window.

FIG. 1 is a side view schematically illustrating a window system according to an embodiment. FIG. 2 is a front view schematically illustrating the internal structure of the window system according to the embodiment. FIG. 3 schematically illustrates the relationship between the refraction of sunlight and the heat collector in the window system according to the embodiment. FIG. 4 schematically illustrates a scene in which the heat transfer fin according to the embodiment rotates around the axis of the heat collecting tube. FIG. 5 schematically illustrates a hot water supply system according to the embodiment. FIG. 6 schematically illustrates an air conditioning system according to the embodiment. FIG. 7 illustrates a desiccant air conditioning system according to the embodiment. FIG. 8 is a side view schematically illustrating a window system according to another embodiment. FIG. 9 is a side view schematically illustrating a window system according to another embodiment. FIG. 10 is a side view schematically illustrating a window system according to another embodiment. FIG. 11 is a cross-sectional view schematically illustrating a configuration of a vacuum tube collector that constitutes a heat collector of a window system according to another embodiment. FIG. 12 is a cross-sectional view schematically illustrating a configuration of a vacuum tube collector that constitutes a heat collector of a window system according to another embodiment. FIG. 13 is a front view schematically illustrating a window system according to another embodiment. FIG. 14 schematically illustrates the relationship between a building and sunlight. FIG. 15 is a front view schematically illustrating a window system according to another embodiment.

  Hereinafter, an embodiment according to an aspect of the present invention (hereinafter, also referred to as “this embodiment”) will be described with reference to the drawings. However, this embodiment described below is only an illustration of the present invention in all respects. Various improvements and modifications may be made without departing from the scope of the present invention. That is, in implementing the present invention, a specific configuration according to the embodiment may be adopted as appropriate.

§1 Configuration example [Window system]
First, the structural example of the window system 1 which concerns on this embodiment is demonstrated using FIG.1 and FIG.2. FIG. 1 is a side view schematically illustrating a window system 1 according to this embodiment. FIG. 2 is a front view schematically illustrating the internal structure of the window system 1 according to this embodiment.

  In FIG. 1 and FIG. 2, for convenience of explanation, each direction is illustrated using the x axis, the y axis, and the z axis. Here, the z-axis direction corresponds to a direction perpendicular to the ground, and the positive direction of the z-axis corresponds to a vertically upward direction. The xy plane corresponds to a plane horizontal to the ground, and the x-axis direction and the y-axis direction correspond to directions horizontal to the ground, respectively. Hereinafter, the z-axis positive direction and the negative direction are referred to as “up” and “down”, respectively, the x-axis positive direction and the negative direction are respectively referred to as “left” and “right”, and the y-axis positive direction. The negative direction is referred to as “front” and “back”, respectively. Each direction is similarly referred to in FIG.

  As illustrated in FIG. 1, the window system 1 according to the present embodiment includes an inner glass material 11 disposed on the indoor side, an outer glass material 12 disposed on the outdoor side, and both glass materials (11, 12). And a plurality of heat collectors 13 disposed in the internal space 14 between the two. This window system 1 is used as a window glass of a building having an exterior glass-clad structure. Hereinafter, each component will be described.

(Inner glass material and outer glass material)
First, the inner glass material 11 and the outer glass material 12 will be described. In this embodiment, the inner side glass material 11 and the outer side glass material 12 are each formed in plate shape, and are arrange | positioned so that it may mutually oppose in a horizontal direction. As illustrated in FIG. 1, the upper and lower ends of both glass materials (11, 12) are fixed by a rectangular frame member 15. Further, as illustrated in FIG. 2, the left and right sides of both glass materials (11, 12) are fixed by a rectangular vertical frame member 16. Thereby, the window system 1 according to the present embodiment is configured as a so-called double glass.

  In the present embodiment, it is assumed that sunlight enters from the front of the window system 1, that is, from the outside of the outer glass material 12, and a plurality of lens members 121 are separated in the vertical direction on the outer glass material 12. Are arranged. Specifically, the outer glass material 12 has an indoor-side surface 122 and an outdoor-side surface 123, and the outer glass material 12 is arranged so that the lens members 121 are spaced apart in the vertical direction. Is attached to a surface 122 on the indoor side.

  Each lens member 121 is appropriately formed so as to function as a lens function unit that refracts direct solar radiation of sunlight. For example, each lens member 121 may be formed so as to have a focal point on the heat collection body 13 so as to collect direct solar radiation of sunlight on a heat collection surface 133 of the heat collection body 13 described later. However, the shape of each lens member 121 may not be limited to such an example, and each appropriately formed lens member 121 may not have such a focal point. The material and shape of each lens member 121 can be appropriately selected depending on the embodiment as long as direct sunlight of sunlight can be refracted. For example, each lens member 121 may be a resin-made (acrylic resin or the like) or glass-made linear Fresnel lens. At this time, the shape of the linear Fresnel lens may be appropriately selected according to the embodiment. For example, the linear Fresnel lens may be formed in a sheet shape. Thereby, the outer side glass material 12 can have the lens function part which refracts the direct solar radiation of sunlight in the part of each lens member 121. FIG. However, each lens member 121 may not be limited to such an example, and may be appropriately selected according to the embodiment. For example, each lens member 121 may be configured by a prism plate or the like that simply refracts light.

  Various known glass materials can be used for the inner glass material 11 and the outer glass material 12. However, from the viewpoint of preventing (reducing) heat re-radiated from the heat collector 13 to be described later from entering the room, the inner glass material 11 is Low-E (having a metal film on the surface on the inner space 14 side). Low-emissivity) glass is preferred. In addition, from the viewpoint of increasing the amount of heat that is transmitted through sunlight and collected by the heat collector 13, the outer glass material 12 is preferably a transparent glass that does not have a metal film and has high permeability.

(Heat collector)
Next, the heat collector 13 will be described. In the present embodiment, a plurality of heat collectors 13 are arranged in the internal space 14 between the two glass materials (11, 12) so as to be separated in the vertical direction. Each heat collector 13 includes a cylindrical heat collecting tube 131 and a plate-shaped heat transfer fin 132 connected to the heat collecting tube 131.

  In the present embodiment, each heat collector 13 corresponds to each lens member 121, in other words, appropriately so that at least a part of the direct solar radiation refracted by each lens member 121 hits the upper surface of the heat transfer fin 132. Has been placed. The upper surface of the heat transfer fin 132 constitutes a heat collecting surface 133 that collects the heat of sunlight. That is, when direct solar radiation of sunlight hits the heat collecting surface 133 (upper surface), the heat of the sunlight is collected on the heat collecting surface 133, thereby warming the heat transfer fins 132. The heat of the heat transfer fins 132 is transmitted to the heat collecting tube 131.

  As illustrated in FIG. 2, the heat collecting tubes of the respective heat collecting bodies 13 are coupled to a pair of left and right vertical frame members 16 so as to be rotatable about the axis at both ends in the left and right direction. In addition, a pipe (not shown) through which the heat medium flows passes through each vertical frame member 16, and the heat collection pipe 131 of each heat collector 13 is connected to a pipe passing through each vertical frame member 16. Therefore, the heat medium supplied from the piping in the vertical frame member 16 flows in the heat collecting tube 131 of each heat collecting body 13.

  The heat medium is a medium such as a liquid or a gas for conveying the heat transmitted from the heat transfer fins 132, and is, for example, water, an antifreeze liquid, or the like. The heat medium moves in the pipe by the action of the pump, and is warmed by the heat transferred from the heat transfer fins 132 to the heat collection pipe 131 when passing through the heat collection pipe 131 of each heat collection body 13. That is, the heat collected by the heat collecting surface 133 is absorbed by the heat medium flowing in the heat collecting tube 131.

  Specifically, in the example of FIG. 2, a relatively cool heat medium is supplied to the pipe in the right vertical frame member 16 from the outside of the window system 1. The heat medium supplied to the pipe in the right vertical frame member 16 moves to the pipe in the left vertical frame member 16 through the heat collection pipe 131 of each heat collector 13. At this time, the heat medium is warmed by the heat transferred from the heat transfer fins 132 to the heat collecting tube 131. In other words, the heat collected by the heat collecting surface 133 is absorbed by the heat medium.

  The heat medium that has absorbed the heat collected by the heat collecting surface 133 may be drained into the sewer as it is, or may be used in other systems such as a hot water supply system and an air conditioning system described later. In the example of FIG. 2, a pipe in the left vertical frame member 16 is connected to a pipe to a sewer, a pipe to another system, etc., and a heat medium that absorbs heat collected by the heat collecting surface 133 is a window. It is discharged outside the system 1.

  Such a heat collector 13 can be produced, for example, as follows. That is, a substantially semicircular recess is formed in the approximate center of the flat heat transfer fin 132 by pressing or the like. Then, the heat collecting tube 131 is soldered to the concave portion of the heat transfer fin 132. Thereby, each heat collecting body 13 can be produced.

  Note that the materials of the heat collection tubes 131 and the heat transfer fins 132 may be appropriately selected according to the embodiment. For example, each of the heat collection tubes 131 and the heat transfer fins 132 may be made of copper, aluminum, stainless steel copper, or the like.

  Further, the upper surface of the heat transfer fins 132, that is, the heat collecting surface 133 may be subjected to a surface treatment for reducing the thermal emissivity (also referred to as long wave emissivity) in order to increase the solar heat absorption rate. Examples of such surface treatment include black coating, semi-selective absorption coating, and selective absorption film processing.

  Among these, in the selective absorption film treatment, a thin film layer of metal oxide such as copper oxide, colored stainless steel, special electrolytic film, or block chromium is formed on the surface of the heat transfer fin 132 by chemical conversion treatment, electrolytic treatment, or the like. On the surface (the heat collecting surface 133) on which the thin film layer is formed, the absorptance in the sunlight spectrum is increased due to a semiconductor effect, a buffer effect, a void structure effect, a resonance scattering effect, and the like. That is, the solar light absorption rate at the heat collecting surface 133 can be increased, and the thermal emissivity can be reduced. Similar effects can be obtained for other surface treatments.

  Therefore, by the surface treatment as described above, after the heat transfer fins 132 absorb the heat of sunlight at the heat collecting surface 133, the absorbed heat can be reduced from being reradiated from the heat transfer fins 132. That is, the heat collection efficiency by the heat collecting body 13 can be increased, and thereby the heat shielding efficiency at the window side of the building using the window system 1 according to the present embodiment can be increased.

  The heat collection body 13 which concerns on this embodiment can collect the heat | fever of sunlight based on the direct solar radiation which hits the heat collection surface 133 by the above structures. In addition, if the heat collected in the heat transfer fins 132 is re-radiated indoors, the heat shielding efficiency at the window side is reduced. Therefore, it is preferable that the internal space 14 between both glass materials (11, 12) is a vacuum. That is, the window system 1 is preferably configured as a vacuum double glass. As a result, heat transfer in the internal space 14 can be cut off, so that the heat collected by the heat collectors 13 disposed between the two glass materials (11, 12) is reradiated indoors. Can be prevented or reduced. However, the state of the internal space 14 may not be limited to such an example, and may not be a vacuum state. Moreover, as above-mentioned, by employ | adopting Low-E glass for the inner side glass material 11, it can prevent or reduce that the heat collected by each heat collector 13 is reradiated indoors.

(Mechanism of heat collection and lighting)
Next, the mechanism in which sunlight is collected indoors while the window system 1 according to the present embodiment collects the heat of sunlight will be described with reference to FIG. FIG. 3 schematically illustrates the relationship between sunlight refraction and the heat collector 13 in the window system 1 according to the present embodiment. The window system 1 according to the present embodiment is used as a building window. Therefore, sunlight enters from the outside of the outer glass material 12.

  Here, each lens member 121 disposed on the indoor side surface 122 of the outer glass material 12 is, for example, a linear Fresnel lens sheet, and refracts directional light. That is, each lens member 121 refracts direct solar radiation SA in sunlight. In the example of FIG. 3, each lens member 121 bends the direct solar radiation SA downward.

  In the present embodiment, each heat collector 13 is arranged in a direction in which the direct solar radiation SA is bent, corresponding to each lens member 121. Therefore, at least a part (preferably all) of the direct solar radiation SA refracted by each lens member 121 is blocked by each heat collector 13. As described above, each heat collector 13 collects the heat of direct solar radiation SA, and conveys the heat collected by the heat medium flowing in the heat collection tube 131 to the outside.

  On the other hand, the scattered solar radiation SB in the sunlight is not refracted in a single direction by each lens member 121 because it faces various directions. For this reason, most of the scattered solar radiation SB is not blocked by the respective heat collectors 13 and enters the indoor side.

  As described above, as illustrated in FIG. 3, the window system 1 according to the present embodiment bends the direct solar radiation SA having a large amount of heat toward the respective heat collectors 13 to shield the heat, and the scattered solar radiation SB having a small amount of heat. The light can be transmitted as it is and can be taken indoors.

(Inclination angle of heat collecting surface)
Next, the inclination angle of the heat collecting surface 133 will be described with reference to FIG. FIG. 4 schematically illustrates a scene in which the heat transfer fins 132 according to the present embodiment rotate around the axis of the heat collecting tube 131. When the position of the sun changes and the incident angle of the direct solar radiation on the window system 1 changes, the direction in which the direct solar radiation refracted by each lens member 121 also changes.

  Therefore, if the position of the sun changes, the amount of direct solar radiation that hits the heat collecting surface 133 may be reduced. Therefore, in the present embodiment, each heat collector 13 is configured to be able to change the inclination angle of the heat collection surface 133 so that the direction of the heat collection surface 133 can be adjusted so that direct solar radiation is appropriately applied. Specifically, each heat collector 13 is configured as follows.

  That is, as illustrated in FIGS. 1 and 2, gears 134 are rotatably attached to both ends of the heat collecting tube 131 of each heat collecting body 13. Further, a toothed pulley 151 is disposed in the frame member 15 in the vertical direction of the window system 1, and a string-like member 152 is wound around the toothed pulley 151. Thereby, the string-like member 152 is configured to be movable in the vertical direction in front of and behind each heat collecting tube 131. The string-like member 152 meshes with the gear 134 of each heat collector 13 at the front and rear of each heat collection tube 131.

  The toothed pulley 151 is configured to be manually rotated from the outside of the window system 1. Thereby, the user can change the inclination angle of the heat collection surface 133 of each heat collector 13 as illustrated in FIG. 4 by operating the string-like member 152 via the toothed pulley 151. it can.

  For example, as shown by a solid line in FIG. 4, by adjusting the inclination angle of the heat collecting surface 133 of each heat collecting body 13, each heat collecting body 13 is arranged so that the heat collecting surface 133 faces the vertical direction. May be. By arranging each heat collecting body 13 in such a manner, the scattered solar radiation component shielded by each heat collecting surface 133 can be reduced. Therefore, the said daylighting property of scattered solar radiation can be improved by the said arrangement | positioning.

  Further, for example, as shown by the dotted line in FIG. 4, by adjusting the inclination angle of the heat collecting surface 133 of each heat collecting body 13, each heat collecting body 13 changes the direction inclined from the vertical direction to the heat collecting surface. It may be arranged so that the heat collecting surface 133 faces the outer glass material 12 by facing the outer glass material 12. The direct solar radiation component absorbed by the heat collection surface 133 can be increased by arranging each heat collection body 13 in such an arrangement. Therefore, according to the arrangement, it is possible to improve the shielding property and heat collecting property of direct solar radiation. In this case, the inclination angle of the heat collecting surface 133 is appropriately determined according to the approach direction of direct solar radiation.

(Action / Effect)
In the window system 1 according to the present embodiment, the direct solar radiation component having directivity in the sunlight incident on the outer glass material 12 is refracted by each lens member 121 (lens function unit), and both glass materials (11, 12) ) Can be absorbed by each heat collector 13 arranged between. Therefore, according to the window system 1 according to the present embodiment, at least a part of the direct solar radiation component of sunlight can be prevented from entering the room.

  In addition, in the said window system 1, the heat | fever of the direct solar radiation component which hits each heat collector 13 can be confine | sealed by the internal space 14 between both glass materials (11, 12) and each heat collector 13. FIG. Therefore, by using the window system 1 according to the present embodiment as the window glass, it is possible to reduce the solar heat entering the room, and it is possible to increase the heat shielding efficiency of sunlight on the window side of the building.

  Further, in the window system 1 according to the present embodiment, as illustrated in FIG. 3 above, the scattered solar radiation component of sunlight has no directivity, and thus the refraction by each lens member 121 (lens function unit) is refracted. Ignore it and let it penetrate into the room. Therefore, even if the direct solar radiation component is completely blocked by each lens member 121 and the heat collector 13, the scattered solar radiation component can be taken into the room. Therefore, according to the window system 1 which concerns on this embodiment, it can light moderately indoors, without interrupting | blocking all the solar radiation.

  As described above, according to the window system 1 according to the present embodiment, the three functions of solar radiation shielding, heat collection, and daylighting on the window surface can be realized simultaneously. Therefore, it is possible to fundamentally improve the solar heat shielding method on the window side of a building having a glass window, and it is possible to provide a window system suitable for use of the window surface of the building.

  In particular, the main cause of raising the temperature in the room is not a scattered solar radiation component with a small amount of heat but a direct solar radiation component with a large amount of heat. According to the window system 1 according to the present embodiment, such a direct solar radiation component that causes an increase in the indoor temperature is blocked, and a scattered solar radiation component with a small amount of heat is taken into the room. Therefore, according to the window system 1 according to the present embodiment, it is possible to appropriately realize the three functions of solar heat shielding, heat collection, and daylighting on the window surface.

  Further, in the window system 1 according to the present embodiment, since the lens function part of the outer glass material 12 is realized by the lens member 121, the outer glass material 12 itself may not have a lens function. Therefore, a general glass material used for a window glass can be used as it is as the outer glass material 12. Therefore, the window system 1 can be easily realized by a highly versatile material.

  Moreover, in the window system 1 which concerns on this embodiment, the heat collecting body 13 is comprised with two or more, and the lens member 121 is comprised with two or more. Each heat collector 13 is arranged corresponding to each lens member 121. That is, each heat collector 13 is appropriately arranged so that direct solar radiation refracted by each lens member 121 hits the heat collection surface 133.

  Therefore, according to the window system 1 according to the present embodiment, each lens member 121 and each heat collector 13 are appropriately arranged so that the direct solar radiation refracted by each lens member 121 is absorbed by each heat collector 13. Therefore, the shielding property and heat collecting property of direct solar radiation can be improved. In addition, compared with the case where the entire surface of the outer glass material 12 is covered with the lens member 121, the area for providing the lens member 121 can be reduced, so that the manufacturing cost can be reduced.

[Hot water system]
Next, a hot water supply system using the window system 1 described above will be described with reference to FIG. FIG. 5 illustrates a hot water supply system 2 </ b> A including the window system 1. As illustrated in FIG. 5, the window system 1 according to the present embodiment can be used as, for example, a component of the hot water supply system 2A.

  As illustrated in FIG. 5, the hot water supply system 2 </ b> A according to the present embodiment includes a first piping path A including the window system 1 and a second piping path B including the hot water storage tank 23. They are connected by a heat exchanger 22. First, the first piping path A will be described. The first piping path A is a closed path connected to each heat collecting pipe 131 of the window system 1, and the heat medium flowing through each heat collecting pipe 131 is circulated in the direction of the arrow in the drawing by the pump 21. Yes.

  The second piping path B is a closed path for circulating the tap water added to the hot water storage tank 23, and the pump 24 causes the water in the hot water storage tank 23 to flow along the arrow direction in the drawing of the second piping path Bx. Circulating. The hot water storage tank 23 is connected to a hot water heater 25 that further warms the hot water in the hot water storage tank 23 when hot water is supplied. The water heater 25 is, for example, a boiler such as gas, oil, or electricity, or a heat pump, and is used as an auxiliary heat source.

  The hot water supply system 2A described above operates as follows. That is, the heat collected by each heat collector 13 of the window system 1 is first taken into the heat medium passing through the window system 1. Specifically, due to the action of the pump 21, the heat medium circulating in the first piping path A passes through the heat collecting tubes 131 of the respective heat collecting bodies 13. At this time, the heat medium flowing through the heat collecting tube 131 acquires the heat collected by the heat transfer fins 132.

  The heat taken into the heat medium in the first piping path A moves to the water in the second piping path B via the heat exchanger 22. The heat medium in the second piping path B warmed by the heat exchanger 22 is stored in the hot water storage tank 23 by the action of the pump 24. On the other hand, the heat medium in the first piping path A cooled by the heat exchanger 22 flows again into the heat collecting tubes 131 of the heat collecting bodies 13 of the window system 1 by the action of the pump 21.

  Therefore, hot water warmed by the heat conveyed through the first piping path A, the heat exchanger 22 and the second piping path B is stored in the hot water storage tank 23. That is, the heat exchanger 22, the first piping path A, and the second piping path B correspond to a heat transfer mechanism for transferring the heat collected by each heat collector 13. In the hot water supply system 2A according to the present embodiment, the hot water stored in the hot water storage tank 23 is further warmed by the hot water heater 25 and used.

  According to the hot water supply system 2A, the heat of the collected solar light is discharged to the sewer after being used for hot water supply in the building. Therefore, according to the hot water supply system 2A, it is possible to effectively use the heat of the collected sunlight while preventing atmospheric diffusion of heat in the building that is a cause of the heat island phenomenon.

  Note that the hot water supply system 2A illustrated in FIG. 5 is merely an example of a hot water supply system that uses the window system 1, and regarding the specific configuration described above, the omission and replacement of components are appropriately performed according to the embodiment. And addition is possible. For example, the window system 1 and the hot water storage tank 23 may be directly connected by piping without passing through the heat exchanger 22. In this case, piping connecting the window system 1 and the hot water storage tank 23 corresponds to the heat transfer mechanism of the present invention.

[Air conditioning system]
Next, the air conditioning system using the window system 1 described above will be described with reference to FIG. FIG. 6 illustrates an air conditioning system 2 </ b> B including the window system 1. As illustrated in FIG. 6, the window system 1 according to the present embodiment can be used as a component of the air conditioning system 2B, for example.

  Since the route from the window system 1 to the hot water storage tank 23 is the same as that of the hot water supply system 2A, the description of the configuration and operation is omitted. The air conditioning system 2B illustrated in FIG. 6 includes a third piping path C including the hot water storage tank 23 and a fourth piping path D including the low temperature heat storage tank 273, in addition to the components of the hot water supply system 2A.

  The third piping path C and the fourth piping path D are respectively closed paths, and form an integrated closed path without being connected to the absorption chiller 271 when connected by the absorption chiller 271. (Route connected by the dotted line F in the figure) can be selectively taken. In the third piping path C, the water in the hot water storage tank 23 circulates in the direction of the arrow in the figure by the pump 26, and in the fourth piping path D, the water in the low-temperature heat storage tank 273 is shown in the figure by the pump 272. It circulates along the arrow direction.

  The low-temperature heat storage tank 273 is connected to the fan coil unit 275 through the fifth piping path E. The fifth piping path E is a closed path for circulating the water in the low temperature heat storage tank 273 between the low temperature heat storage tank 273 and the fan coil unit 275 by the pump 274. Further, the fan coil unit 275 performs indoor cooling or heating using water supplied from the low-temperature heat storage tank 273 as a refrigerant or a heat medium. In this embodiment, the air-conditioning mechanism 27 that performs both cooling and heating is formed by the absorption refrigerator 271, the low-temperature heat storage tank 273, and the fan coil unit 275 as described above.

  The above air conditioning system 2B operates as follows. When the air conditioning system 2B performs cooling, the third piping path C and the fourth piping path D are respectively closed paths and are connected by the absorption chiller 271. Then, the hot water in the hot water storage tank 23 heated using the window system 1 is sent to the absorption refrigerator 271 by the action of the pump 26. As described in the hot water supply system 2A, the first piping path A, the heat exchanger 22, and the second piping path B correspond to the heat transfer mechanism of the present invention, and the hot water storage tank 23 includes the window system 1. Hot water warmed by the collected heat is stored.

  The absorption refrigeration machine 271 is an evaporator that performs cooling by heat of vaporization, an absorber that absorbs water vapor evaporated by the evaporator with an absorption liquid, a regenerator that regenerates the concentration of the absorption liquid of the absorber by heating, and a regenerator. It is composed of a condenser that condenses evaporated water vapor into a refrigerant used in the evaporator. In the absorption refrigerator 271, the third piping path C is connected to the regenerator, and the fourth piping path D is connected to the evaporator. And the absorption refrigerator 271 cools the water circulating in the 4th piping path | route D using the hot water supplied from the hot water storage tank 23 via the 3rd piping path | route C as a heat source.

  The water in the third piping path C used as a heat source returns to the hot water storage tank 23 by the action of the pump 26, acquires heat again, and is used as a heat source for the absorption chiller 271. On the other hand, the water in the fourth piping path D cooled by the absorption chiller 271 is stored in the low-temperature heat storage tank 273 by the action of the pump 272. That is, the hot water storage tank 23 functions as a high-temperature heat storage tank that stores hot water serving as a heat source for the low-temperature heat storage tank 273.

  The cold water stored in the low-temperature heat storage tank 273 circulates in the fifth piping path E by the action of the pump 274 and is supplied to the fan coil unit 275. The fan coil unit 275 performs cooling by cooling indoor air using cold water supplied from the low-temperature heat storage tank 273. Then, the water heated by the cooling of the fan coil unit 275 returns to the low-temperature heat storage tank 273 via the fifth piping path E, is cooled again, and is used as a refrigerant of the fan coil unit 275. In the air conditioning system 2B (air conditioning mechanism 27) according to the present embodiment, cooling is performed in this way.

  On the other hand, when the air conditioning system 2B performs heating, the third piping path C and the fourth piping path D are directly connected to form an integrated closed path without passing through the absorption refrigerator 271 (in the drawing). A route connected by a dotted line F). Therefore, hot water (in parentheses in the figure) in the hot water storage tank 23 heated using the window system 1 is sent to the low-temperature heat storage tank 273 by the action of at least one of the pump 26 and the pump 272.

  The hot water stored in the low-temperature heat storage tank 273 circulates in the fifth piping path E by the action of the pump 274 and is supplied to the fan coil unit 275. The fan coil unit 275 performs heating by warming indoor air using hot water supplied from the low-temperature heat storage tank 273. Then, the water cooled by heating the fan coil unit 275 returns to the low-temperature heat storage tank 273 via the fifth piping path E, is warmed again, and is used as a heat medium for the fan coil unit 275. . The water in the low-temperature heat storage tank 273 cooled by the water returning from the fan coil unit 275 returns to the hot water storage tank 23 via the fourth piping path D and the third piping path C, and is warmed again, so that the low-temperature heat storage tank 273. In the air conditioning system 2B (air conditioning mechanism 27) according to the present embodiment, heating is performed in this manner.

  Note that the air conditioning system 2B illustrated in FIG. 6 is merely an example of an air conditioning system that uses the window system 1, and regarding the specific configuration described above, the omission and replacement of components are appropriately performed according to the embodiment. And addition is possible. For example, the air conditioning system 2B can perform both cooling and heating, but may not perform either cooling or heating.

  In this case, for example, the third piping path C and the fourth piping path D may not be directly connected. At this time, the air conditioning system 2B (air conditioning mechanism 27) cannot perform heating. Further, for example, the third piping path C may be connected to a radiator instead of the absorption refrigerator 271. At this time, the air conditioning system 2 </ b> B (air conditioning mechanism 27) cannot perform cooling, and the radiator corresponds to the air conditioning mechanism of the present invention, and performs heating using hot water (heat) supplied from the hot water storage tank 23.

  In the air conditioning system 2B illustrated in FIG. 6, a path that can be used for hot water supply from the hot water storage tank 23 as in the hot water supply system 2A may be provided. Thereby, the air-conditioning hot-water supply system which can perform hot water supply with at least any one of air_conditioning | cooling and heating using the heat collected using the window system 1 may be comprised.

  Further, as illustrated in FIG. 7, an air conditioning system capable of dehumidification may be configured by connecting the window system 1 to a desiccant dehumidifier 28 instead of the air conditioning mechanism 27. FIG. 7 illustrates an air conditioning system 2C that can be dehumidified. In the air conditioning system 2C, as in the air conditioning system 2B, the first piping path A, the heat exchanger 22, and the second piping path B transfer heat for transferring the heat collected by the heat collectors 13. Corresponds to the mechanism. The desiccant dehumidifier 28 corresponds to an air conditioning mechanism for performing dehumidification.

  The desiccant dehumidifier 28 includes, for example, a desiccant rotor and a sensible heat exchange rotor, and exhausts indoor air to the outside while supplying air to the room after dehumidifying the outdoor air with the desiccant rotor. Thereby, the desiccant dehumidifier 28 can perform indoor dehumidification.

  Here, in the desiccant rotor for dehumidifying the air, a hygroscopic agent such as a silica gel agent or a zeolite agent is used. The moisture absorbent that adsorbs moisture in the air can be desorbed and regenerated by applying heat. Therefore, the desiccant dehumidifier 28 is provided with a heat source for regenerating the hygroscopic agent between the desiccant rotor and the sensible heat exchange rotor.

  A heat source for regenerating the hygroscopic agent is, for example, a heat exchanger using hot water. Therefore, as illustrated in FIG. 7, the desiccant dehumidifier 28 (heat exchange) is connected to the pipe of the third pipe path C connected to the hot water storage tank 23 in which hot water heated by the heat collected by the window system 1 is stored. Connected). Then, the pump 26 is operated so as to send the hot water stored in the hot water storage tank 23 to the heat exchanger of the desiccant dehumidifier 28. Thereby, in the air conditioning system 2C, the heat collected by the window system 1 can be used for the regeneration of the moisture absorbent of the desiccant dehumidifier 28.

  The air conditioning system to which the window system 1 is connected may include an air conditioning mechanism capable of cooling, heating, and dehumidification, or may include a plurality of air conditioning mechanisms. For example, the air conditioning system may include both the air conditioning mechanism 27 and the desiccant dehumidifier 28. In this case, you may switch the air-conditioning mechanism which connects the window system 1 according to a scene. That is, when the heat collected in the window system 1 is used for heating and / or cooling, as shown in FIG. 6, the air conditioning system can cool and / or heat the hot water obtained in the window system 1. It may be configured to be supplied to a simple air conditioning mechanism. When the heat collected in the window system 1 is used for dehumidification, the air conditioning system is configured so that the hot water obtained in the window system 1 is supplied to the desiccant dehumidifier 28 as illustrated in FIG. The supply destination of the hot water may be configured to be switchable. Note that the window system 1 may be directly connected to the air-conditioning mechanism 27, the desiccant dehumidifier 28, and the like without using the heat exchanger 22 or the like.

§2 Modifications As described above, the embodiments of the present invention have been described in detail. However, the above description is merely illustrative of the present invention in all respects. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention. In addition, regarding each component of the window system 1, the component may be omitted, replaced, and added as appropriate according to the embodiment. The shape and size of each component of the window system 1 may be appropriately set according to the embodiment. For example, the following changes can be made. In the modification described below, the same reference numerals are used for the same components as those in the above embodiment, and the description thereof is omitted as appropriate.

<2.1>
Further, for example, in the above embodiment, each lens member 121 is affixed and disposed on the indoor side surface 122 of the outer glass material 12. However, the arrangement of the lens members 121 may not be limited to such an example, and may be appropriately selected according to the embodiment. For example, as illustrated in FIG. 8, each lens member 121 may be attached to the outdoor surface 123 of the outer glass material 12 and disposed.

  FIG. 8 is a side view schematically illustrating a window system 1A according to this modification. As illustrated in FIG. 8, in this modification, each lens member 121 </ b> A is attached to the outdoor surface 123 of the outer glass material 12 and disposed. Even if it arrange | positions in this way, each lens member 121A can refract the direct solar radiation of the incident sunlight toward each heat collecting body 13 similarly to the said embodiment.

  That is, in the above embodiment, each lens member 121 may be disposed on either the indoor side surface 122 or the outdoor side surface 123 of the outer glass material 12. However, when each lens member 121 is disposed on the outdoor surface 123, each lens member 121 may be contaminated by exposure to wind and rain. Therefore, each lens member 121 is preferably disposed on the indoor side surface 122 of the outer glass material 12. Accordingly, it is possible to prevent each lens member 121 from being exposed to wind and rain and becoming dirty.

<2.2>
For example, in the said embodiment, the several heat collection body 13 is arrange | positioned in the internal space 14 between both glass materials (11, 12), and according to this, the same number of lens members 121 as the heat collection body 13 are comprised. The outer glass material 12 is disposed on the indoor side surface 122. However, the number of the heat collecting bodies 13 arranged in the internal space 14 is not limited to such an example, and may be one. The number and arrangement location of the heat collectors 13 can be appropriately set according to the embodiment.

  Further, the number of lens members 121 arranged on the outer glass material 12 is not limited to such an example, and may be one. For example, one lens member 121 covers the entire surface (122, 123) of any one of the outer glass materials 12, so that the outer glass material 12 may have a lens function part as a whole. Or the outer side glass material 12 may have a lens function part partially by the some lens member 121 being spaced apart like the said embodiment. That is, the outer glass material 12 should just have a lens function at least in part.

  Further, the number of the lens members 121 may be the same as the number of the heat collectors 13 or may be different from the number of the heat collectors 13. The number and location of the lens members 121 may be appropriately set according to the embodiment so that the direct solar radiation incident on the lens member 121 can be refracted toward the heat collector 13.

<2.3>
Further, for example, in the above-described embodiment, the lens function part of the outer glass material 12 is configured by each lens member 121. However, the method of configuring the lens function unit is not limited to such an example, and may be appropriately selected according to the embodiment. For example, as illustrated in FIG. 9, the lens function unit may be configured by unevenness formed on the surface of the outer glass material 12.

  FIG. 9 is a side view schematically illustrating a window system 1B according to this modification. As illustrated in FIG. 9, in the present modification, irregularities 124 are formed on the outdoor surface 123 of the outer glass material 12 </ b> B. The unevenness 124 is appropriately formed so as to refract the direct solar radiation incident from the outdoor side. For example, the unevenness 124 is formed in the same shape as the surface shape of the linear Fresnel lens. Accordingly, the unevenness 124 can function as a lens function unit that refracts direct solar radiation of sunlight. The unevenness 124 may be formed on the indoor surface 122.

  According to this modification, the following effects can be expected. In other words, in the present modification, a template glass in which unevenness functioning as a lens function part is formed on one surface is used as the outer glass material 12. This template glass can be produced at low cost when mass-produced. Therefore, according to the present modification, when the window system 1 is mass-produced, the manufacturing cost of the window system 1 is suppressed by an amount that can eliminate at least the attaching process of each lens member 121 as compared with the above embodiment. be able to.

<2.4>
Moreover, in the said embodiment, each heat collecting body 13 is comprised by the pair of gearwheel 134 and the string-like member 152 which were attached to each heat collecting body 13 so that the inclination of the heat collecting surface 133 can be changed. However, the method for making it possible to change the inclination of the heat collecting surface 133 is not limited to such an example, and may be appropriately selected according to the embodiment. For example, the window system 1 may include a driving device that electrically drives the toothed pulley 151. Thereby, the inclination angle of the heat collecting surface 133 can be changed electrically. Further, for example, each heat collector 13 may be configured to be able to change the inclination of the heat collecting surface 133 by a rack, a bevel gear, or the like.

  Further, the gear 134, the toothed pulley 151, and the string-like member 152 may be omitted, and each heat collector 13 may be fixed so that the inclination of the heat collection surface 133 cannot be changed. At this time, each heat collector 13 may be arranged so that the heat collecting surface 133 faces the vertical direction, or the heat collecting surface 133 faces the direction inclined from the vertical, so that the outer glass material 12 is directed toward the outer glass material 12. You may arrange | position so that the heat collecting body 13 may face.

<2.5>
For example, in the said embodiment, the heat collection body 13 forms the semicircle-shaped recessed part in the center of the plate-shaped heat-transfer fin 132, and solders the cylindrical heat collection tube 131 to the said recessed part, Composed. However, the configuration of the heat collector 13 may not be limited to such an example, and may be appropriately selected according to the embodiment. For example, the heat collecting tubes 131 and the heat transfer fins 132 may be connected by roll forming. For example, as illustrated in FIGS. 10 and 11, each heat collector 13 may be configured by one or a plurality of vacuum tube type heat collectors.

(Use of vacuum tube type collector)
FIG. 10 is a side view schematically illustrating a window system 1C according to this modification. FIG. 11 is a cross-sectional view schematically illustrating the configuration of a vacuum tube type heat collector 30 that constitutes the heat collector 13C of the window system 1C. As illustrated in FIG. 10, in the window system 1 </ b> C, the heat collector 13 </ b> C includes six heat collectors 30. However, the number of the heat collectors 30 constituting the heat collector 13C may not be limited to such an example, and may be appropriately selected according to the embodiment. That is, the number of the heat collectors 30 constituting the heat collector 13C may be singular, 2 or more and less than 6, or 7 or more.

  Each heat collector 30 is a vacuum tube type heat collector that absorbs sunlight and collects heat. Each heat collector 30 is configured, for example, as illustrated in FIG. That is, each heat collector 30 includes a cylindrical hollow glass outer glass tube 301 having one end formed in a hemispheric shape and closed, and the other end opened. The outer glass tube 301 is disposed so as to extend in the horizontal direction. A cylindrical hollow glass inner glass tube 302 is arranged inside the outer glass tube 301.

  The inner glass tube 302 has the same diameter as the outer glass tube 301 and has a small diameter, and is arranged coaxially with the outer glass tube 301. The end portions on the opening side of the outer glass tube 301 and the inner glass tube 302 are joined together in an airtight manner, and the inner space, that is, the inner peripheral surface of the outer glass tube 301 and the outer peripheral surface of the inner glass tube 302 are combined. Between these, a vacuum layer 303 is formed. That is, each heat collector 30 is a vacuum double glass tube configured with an outer glass tube 301 and an inner glass tube 302. The end of the vacuum double glass tube, that is, the opening of the inner glass tube 302 is sealed by the vertical frame member 16 to which each heat collector 30 is fixed.

  The outer peripheral surface of the inner glass tube 302 located on the vacuum layer 303 side is coated with a selective absorption film 304 that absorbs sunlight and collects heat. The selective absorption film 304 may be a film that absorbs sunlight and collects heat. For example, the selective absorption film 304 may be a multilayer film formed of black chrome, black nickel, aluminum nitride, etc., sputtering, electroplating, etc. Or a film with irregularities on the surface.

  Heat transfer fins 305 are provided on the opposite side of the selective absorption film 304, that is, in the inner space of the inner glass tube 302 so as to contact the inner peripheral surface of the inner glass tube 302. A U-shaped tube 306 is provided in the internal space so as to be wrapped by the heat transfer fin 305.

  The heat transfer fins 305 are made of aluminum, for example, and transfer heat of the selective absorption film 304 to the U-shaped tube 306. The U-shaped tube 306 is made of, for example, copper, and both end portions thereof protrude from the opening of the inner glass tube 302 toward the vertical frame member 16 and are connected to piping passing through the vertical frame member 16. As a result, the heat medium supplied from the pipe flows in the U-shaped tube 306.

  Each heat collector 30 is configured as described above, for example, so that it can absorb the heat of sunlight and transport the heat absorbed through the heat medium to the outside of the window system 1C. Thus, by constituting each heat collecting body 13C with one or a plurality of vacuum tube type heat collecting devices 30, it is possible to prevent the heat collected by each heat collecting body 13C from being re-radiated again. . Therefore, it is possible to prevent the heat confined in each heat collector 13C from being re-emitted into the building without the internal space 14 between the glass materials (11, 12) being in a vacuum state. Therefore, the heat shielding efficiency of the perimeter zone can be increased.

  In addition, the structure of the heat collector 30 may not be limited to the above examples, and may be appropriately selected according to the embodiment. For example, the selective absorption film 304 may be provided on the inner peripheral surface of the inner glass tube 302 or the outer peripheral surface of the heat transfer fin 305 in order to increase the efficiency of heat conduction with respect to the U-shaped tube 306.

  In addition, when the heat collector 13C is configured by a plurality of heat collectors 30, the plurality of heat collectors 30 may be appropriately connected by a known connection method. At this time, a gap may be provided between adjacent heat collectors 30. Thus, when comprising the heat collecting body 13C with the heat collector 30, the surface by the side of the outer side glass material 12 of each heat collector 30 comprises the heat collecting surface 133C so that it may be illustrated by FIG.

  In addition, the structure of each heat collector 30 may not be limited to such an example, and omission, replacement, and addition of components may be appropriately performed according to the embodiment. For example, the heat collector 30 may be configured as illustrated in FIG.

  FIG. 12 is a cross-sectional view illustrating a vacuum tube type heat collector 30A according to another embodiment. The heat collector 30A illustrated in FIG. 12 includes a glass tube 307, and the internal space 308 of the glass tube 307 is in a vacuum. In this internal space 308, a heat collecting tube 309 integrated with a flat plate heat collecting plate 313 is disposed, and in the internal space 311 of the heat collecting tube 309, an inner tube 310 is disposed. The heat collection tube 309 and the inner tube 310 are made of, for example, copper, and a heat medium such as water flows through both the internal spaces (311 and 312).

  The heat collecting plate 313 is coated with a selective absorption film that absorbs sunlight and collects heat on the surface of the heat collecting plate 313 that is exposed to sunlight (for example, the upper surface in FIG. 12). It is configured to collect heat. That is, in the heat collector 30 </ b> A, the surface of the heat collecting plate 313 that is exposed to sunlight is the heat collecting surface. Thereby, the heat collector 30A collects the heat of sunlight with the heat collecting plate 313, and can convey the heat collected by the heat medium flowing through the internal spaces (311 and 312) to the outside.

  In the window system 1 </ b> C according to the modified example, the heat collector 30 </ b> A may be used instead of the heat collector 30. In this case, not the portion indicated by reference numeral 133C in FIG. 10, but the surface on which the sunlight is irradiated of the heat collecting plate 313 of the heat collector 30A becomes the heat collecting surface.

  Further, in the window system 1B according to the modified example, the heat collector 30A can be used alone instead of the heat collector 13.

(Use of heat pipe)
Further, for example, a heat pipe may be used instead of the heat collecting tube 131 in each heat collecting body 13 without depending on the vacuum tube type heat collecting device 30 as described above. For example, the heat pipe is formed in a cylindrical shape like the heat collecting tube 131 and includes a head portion disposed in the pipe of the window system 1. A heat medium is enclosed in the heat pipe, and the heat collected by the heat collector 13 is transmitted to the heat pipe via the heat transfer fins 132 and absorbed by the heat medium enclosed in the heat pipe. The Thus, when the heat medium in the heat pipe is warmed, heat convection is generated in the heat pipe, and the warmed heat medium is collected at the head of the heat pipe. When the heated heat medium collects at the head of the heat pipe, the heat medium in the piping of the window system 1 is heated by contacting the head. As a result, similarly to the above-described embodiment, the heat collected by each heat collector 13 can be transported by the heat medium flowing in the piping of the window system 1.

<2.6>
In the window system 1 according to the above-described embodiment, the plurality of lens members 121 are arranged at a predetermined interval in the vertical direction (vertical direction) with respect to the ground. Accordingly, the plurality of heat collectors 13 are also arranged at a predetermined interval in the vertical direction (up and down direction) with respect to the ground. However, the arrangement of the lens member 121 and the heat collector 13 may not be limited to such an example, and the lens member 121 and the heat collector 13 may be arranged at a predetermined interval in the horizontal direction as illustrated in FIG. It may be arranged with a gap.

  FIG. 13 is a front view schematically illustrating the internal structure of the window system 1D according to this modification. In the example of FIG. 13, each heat collector 13 is arranged such that the vertical direction of the window system 1 according to the above embodiment is the horizontal direction. Accordingly, the lens members 121 are arranged at predetermined intervals in the left-right direction (horizontal direction) (not shown).

  In the case of this modification, when the incident angle of sunlight changes in the vertical direction, the position where the sunlight enters in the vicinity of each heat collector 13 is in the vertical direction on the heat collection surface 133 of each heat collector 13. It only changes. Therefore, in this window system 1D, it is possible to cope with changes in the position of the sun without changing the position and orientation of the heat collecting surface 133.

  On the other hand, when the incident angle of sunlight changes in the left-right direction, the position where the sunlight enters near each heat collector 13 is shifted in the left-right direction from each heat collector 13. Therefore, in the window system 1D according to the present modification, the inclination angle of each heat collecting surface 133 can be changed by the same method as in the above embodiment, that is, each heat collecting body 13 can be rotated in the left-right direction. May be. Thereby, in the window system 1D which concerns on this modification, each heat collector 13 can respond | correspond to the shift | offset | difference of the position which the said sunlight injects.

  In the window system 1 according to the above embodiment, an event opposite to that of the window system 1D occurs. That is, in the case of the above-described embodiment, when the incident angle of sunlight changes in the left-right direction, the position where the sunlight enters near each heat collector 13 is left and right on the heat collection surface 133 of each heat collector 13. It only changes direction. Therefore, in the said window system 1, it can respond to the change of the position of the sun, without changing the position and direction of the heat collection surface 133. FIG.

  On the other hand, when the incident angle of sunlight changes in the vertical direction, the position where the sunlight is incident near each heat collector 13 is shifted in the vertical direction from each heat collector 13. Therefore, in the window system 1 according to the above-described embodiment, each heat collector 13 is configured to be rotatable in the vertical direction, whereby each heat collector 13 corresponds to a shift in the position where sunlight enters. be able to.

  Here, the relationship between the arrangement direction of the lens member 121 and the heat collector 13 and the direction of the window in which the window system 1 or 1D is installed will be described with reference to FIG. FIG. 14 schematically illustrates the relationship between a building window and the incident angle of sunlight. 2 and 13 each schematically illustrate the state in which each window system (1, 1D) is viewed in the front-rear direction (from the outdoor side toward the indoor side). The left side of each drawing is the right side when viewed from each window system (1, 1D), and the right side of each drawing is the left side when viewed from each window system (1, 1D). In addition, the upper side of each drawing is the upper side of each window system (1, 1D), and the lower side of each drawing is a lower side of each window system (1, 1D). 2 and 13, each window system (1, 1D) is arranged so that the outer glass material 12 exists on the front side of the paper (in the positive y-axis direction), in other words, on the front side of the paper (y-axis). (Positive direction) is arranged on the outdoor side.

  As illustrated in FIG. 14, sunlight is likely to enter the south-facing window 91 from above. That is, in the south-facing window 91, the incident angle of sunlight hardly changes in the vertical direction and easily changes in the left-right direction. Therefore, it is preferable that the window system 1 according to the above-described embodiment illustrated in FIG. According to window system 1 concerning the above-mentioned embodiment, since heat collection surface 133 of each heat collection object 13 is arranged horizontally, it becomes easy to make sunlight enter each heat collection surface 133. Therefore, the heat shielding efficiency of sunlight can be improved by using the window system 1 according to the embodiment for the south-facing window 91.

  On the other hand, as illustrated in FIG. 14, sunlight is likely to enter the east-facing window 92 from the right side when viewed from the window 92. That is, in the east-facing window 92, the incident angle of sunlight hardly changes in the left-right direction, and easily changes in the up-down direction. The same is true for windows facing west. Therefore, it is preferable that the window system 1D according to this modification illustrated in FIG. 13 is used for the east facing window 92 and the west facing window. According to the window system 1D according to the present modification, the heat collecting surfaces 133 of the respective heat collectors 13 are arranged vertically, so that it becomes easy for the sunlight to enter each heat collecting surface 133. Therefore, the heat shielding efficiency of sunlight can be improved by using the window system 1D according to the present modification for the east-facing window 92 and the west-facing window.

  As described above, there is a suitable arrangement direction of the lens member 121 and the heat collector 13 according to the place of use. Therefore, in the window system 1 according to the above-described embodiment, the arrangement of the lens member 121 and the heat collector 13 is changed according to the place of use. The arrangement may be changeable.

  In addition, when the lens function part of the outer side glass material 12 is comprised by the unevenness | corrugation 124 formed in the surface instead of each lens member 121 like the said window system 1B, each said unevenness | corrugation 124 follows along a perpendicular direction. Formed. The irregularities 124 are formed so as to be arranged at predetermined intervals in the horizontal direction (for example, the left-right direction). As a result, as in the above modification, the lens function units corresponding to the heat collectors 13 are spaced apart from each other in the horizontal direction.

<2.7>
Further, in the window system 1 according to the embodiment and the window system 1D according to the modification, the heat collector 13 extends along the horizontal direction or the vertical direction. However, the form of the heat collector 13 is not limited to such an example, and may be inclined from the horizontal direction or the vertical direction. For example, the heat collector 13 may be configured as shown in FIG.

  FIG. 15 is a front view schematically illustrating a window system 1E according to this modification. In the window system 1E illustrated in FIG. 15, the heat collector 13 is slightly inclined from the horizontal direction. Thereby, circulation (from left to right in FIG. 15) of the heat medium flowing in the heat collecting tube 131 can be promoted. In FIG. 15, the heat collector 13 is inclined so as to extend in the upper right direction (that is, the vertical frame member side through which the heated heat medium passes becomes higher). However, the direction in which the heat collector 13 is inclined does not have to be limited to such an example. For example, the heat collector 13 may be inclined so as to extend in the lower right direction. In this case, the heat medium is urged to circulate in the direction opposite to that shown in FIG. 15, that is, from the right side to the left side. The window system 1E has the same configuration as the window system 1 except that the heat collector 13 is slightly inclined from the horizontal direction. However, the configuration of the window system 1E may not be limited to such an example, and may be appropriately selected according to the embodiment.

<2.8>
Moreover, in the window system 1 which concerns on the said embodiment, and the window system 1D which concerns on a modification, each heat collection body 13 is arrange | positioned along with the perpendicular direction or the horizontal direction. However, the direction in which the heat collectors 13 are arranged may not be limited to such an example, and may be appropriately selected according to the embodiment. For example, the heat collectors 13 may be arranged side by side in a direction inclined from the vertical direction or the horizontal direction. In accordance with this, both glass materials (11, 12) may not be opposed to each other in the horizontal direction, and the direction in which both glass materials (11, 12) are arranged is appropriately selected according to the embodiment. It's okay. For example, both glass materials (11, 12) may be arranged to face each other in the vertical direction. Thus, the window system which has arrange | positioned both glass materials (11, 12) and each heat collection body 13 can be utilized for a skylight etc., for example.

1 ... Window system,
11 ... Inner glass material,
12 ... Outer glass material, 121 ... Lens member (lens function part),
122 ... (inside the room), 123 ... (outside) the surface,
13 ... Heat collecting body, 131 ... Heat collecting tube, 132 ... Heat transfer fin,
133 ... Heat collecting surface, 134 ... Gear,
14 ... Internal space,
15 ... Frame material, 151 ... Toothed pulley, 152 ... String member,
16 ... vertical frame material,
2A ... Hot water supply system, 2B ... Air conditioning system, 2C ... Air conditioning system,
21 ... Pump, 22 ... Heat exchanger, 23 ... Hot water storage tank, 24 ... Pump,
25 ... Water heater, 26 ... Pump,
27 ... Air-conditioning mechanism, 271 ... Absorption refrigerator, 272 ... Pump,
273 ... low temperature heat storage tank, 274 ... pump, 275 ... fan coil unit,
28 ... Desiccant dehumidifier,
1A ... Window system, 121A ... Lens member (lens function part),
1B ... Window system, 12B ... Outer glass material, 124 ... Concavity and convexity (lens function part),
1C ... Window system, 13C ... Heat collector, 133C ... Heat collection surface,
30 ... (vacuum tube type) collector,
301 ... Outer glass tube, 302 ... Inner glass tube, 303 ... Vacuum layer, 304 ... Selective absorption membrane,
305 ... Heat transfer fin, 306 ... U-shaped tube,
30A ... (vacuum tube type) collector,
307 ... Glass tube, 308 ... internal space, 309 ... heat collecting tube, 310 ... inner tube,
311 ... Internal space (of the heat collection tube), 312 ... Internal space (of the internal tube), 313 ... Heat collection plate,
1D ... Window system,
91 ... (south facing) window, 92 ... (east facing) window,
SA ... direct solar radiation, SB ... scattered solar radiation

Claims (8)

An inner glass material arranged on the indoor side;
An outer glass material that is disposed on the outdoor side facing the inner glass material and has a lens function part that refracts the direct solar radiation of sunlight at least in part,
A heat collector having a heat collecting surface for collecting the sunlight, and is arranged between the outer glass material and the inner glass material so that the direct solar radiation refracted by the lens function unit hits the heat collecting surface. The collected heat collector,
With window system. The heat collector is composed of one or a plurality of vacuum tube type heat collectors,
The window system according to claim 1. The lens function part is constituted by irregularities formed on the surface of the outer glass material,
The window system according to claim 1 or 2. The lens function unit is configured by a lens member disposed on the indoor side or outdoor side surface of the outer glass material,
The window system according to claim 1 or 2. The lens member is composed of a linear Fresnel lens,
The window system according to claim 4. The outer glass material and the inner glass material are horizontally opposed,
The heat collector is composed of a plurality of pieces,
The lens member is composed of a plurality,
The plurality of lens members are spaced apart in the vertical direction,
The plurality of heat collectors are arranged separately in the vertical direction so as to correspond to the plurality of lens members, respectively.
The window system according to claim 4 or 5. A window system used for a window surface of a building, the window system according to any one of claims 1 to 6,
A heat transfer mechanism for transferring heat;
A hot water storage tank for storing hot water heated by the heat transferred by the heat transfer mechanism;
With
The heat transport mechanism transports heat collected in the heat collector;
Hot water system. A window system used for a window surface of a building, the window system according to any one of claims 1 to 6,
A heat transfer mechanism for transferring heat;
An air-conditioning mechanism that performs at least one of heating, cooling, and dehumidification using heat transferred by the heat-transfer mechanism;
With
The heat transport mechanism transports heat collected in the heat collector;
Air conditioning system.

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