JP5232439B2 - Roof cooling system - Google Patents

Description

According to the present invention, a watering device used in a roof cooling system that cools a roof surface by flowing down water by watering, and a stored water is pumped to the roof by a pump, and the roof surface is cooled by watering through the watering device. Relates to the roof cooling system.

  The roofs of buildings such as houses and buildings or factories and warehouses in the summer are exposed to direct sunlight, which raises the temperature in the building, which impedes work in the building and product quality. In particular, when the roof of such a building is a roof made of a metal plate other than tiles, such as a folded plate structure or a tile rod structure, the temperature rise in the building becomes even more remarkable. For this reason, in general, various methods are adopted such as making the building a structure that is well-ventilated and difficult to collect heat, raising the roof, or applying a heat insulating material to the lower part of the roof. However, these methods have a problem that the cost required for building construction, in particular, for renovation of an already constructed building is high.

  On the other hand, conventionally, a roof cooling system in which the roof surface of a building is cooled by watering is known. For example, in Patent Document 1 or Patent Document 2, rainwater and remaining hot water of a bath are stored in a water storage tank, and when cooling, the stored water is pumped up to a roof by a pump, and a watering device installed in a ridge portion is used for roofing. A roof cooling system has been proposed in which water used for cooling is recovered and reused.

JP 2004-76541 A Japanese Patent Laid-Open No. 11-324030

However, in such a roof cooling system, the stored water is pumped from the ground to the roof using a pump with a high head and a high discharge amount, and this water is blown out from the nozzle of the watering device in a mist or granular manner. Therefore, there were the following problems.
(B) Since water is sprayed in a mist or granular form, unevenness occurs due to a change in water pressure, and the entire roof surface cannot be cooled uniformly.
(B) Fog or granular water droplets are scattered from the roof due to wind or flow velocity, and there is a concern of passing people.
(C) The system becomes expensive because a high-capacity pump or sprinkler is used.
(D) The amount of water used increases.

  The present inventor believes that the cooling of the roof surface is not a water flow rather than a large amount of water pumped using a high-capacity pump or sprinkler from the viewpoint of cooling efficiency or cost. It has been found that it is much better to use a pump with a very low capacity that can raise the water to the roof, and slowly cool the water pumped by the water little by little.

The present invention has been made based on the background as described above. The object of the present invention is to provide a small amount of roof, particularly a roof surface made of a metal plate such as a folded plate structure or a tile rod structure, or a slate roof surface. An object of the present invention is to provide a watering device that can be efficiently and inexpensively cooled by water, and a roof cooling system using the watering device .

The watering device of the present invention is a watering device used in a roof cooling system that cools the roof surface by allowing water to flow down by watering, in which a weir plate is disposed at substantially equal intervals, and the weir plate A water spray pipe having a water spray nozzle drilled toward the roof surface is provided on the pipe wall in between, and is configured to be installed in the upper ridge part and / or the inclined ridge part of the roof so that the water in the water spray pipe flows down. It is characterized by.

  The above object of the present invention is to provide a roof cooling system in which stored water is pumped up to a roof by a pump and sprinkled through a sprinkler to cool the roof surface, and connected to the pump through a water supply pipe. The relay water receiving tank is installed on the roof, and the sprinkler is connected to the relay water receiving tank at one end side, and a weir plate is disposed at substantially equal intervals, and a pipe wall between the shroud plates A cooling tower comprising: a water spray pipe having a water spray nozzle drilled toward the roof surface; and installed in the upper ridge part and / or the inclined ridge part of the roof so that the water in the pipe flows down. This is achieved by providing a system.

  Further, the above object of the present invention is to provide a liquid level detector for detecting the level of water stored in the relay water receiving tank, and to drive the pump by the detection signal of the liquid level detector. This is accomplished effectively by providing a roof cooling system that is configured to be controlled.

  Further, the above object of the present invention is to provide a roof cooling system in which stored water is pumped to a roof by a pump, and the roof surface is cooled by spraying the water through the sprinkler. The water in the pipes flows down through the watering pipes that are connected to each other and that have the weir boards disposed therein at approximately equal intervals, and in which the watering nozzles are drilled toward the roof surface on the pipe wall between the weir boards. It is achieved by providing a roof cooling system characterized in that it is installed in the upper ridge part and / or the inclined ridge part of the roof.

  Moreover, the said objective of this invention is achieved effectively by providing the roof cooling system characterized by the shape of the said roof being either a single flow, a gable, or a dormitory.

  Furthermore, the above object of the present invention can be effectively achieved by providing a roof cooling system in which the roof surface is formed of a metal plate or a slate plate.

  In the roof cooling system according to the present invention, the watering device connected to the relay water receiving tank, or the watering device directly connected to the pump without installing the relay water receiving tank, slowly and slowly supplies a small amount of water with a substantially uniform pressure. Since it is configured to flow on the roof surface, the entire roof surface can be evenly cooled, and there is no worry that water droplets will scatter from the roof due to wind or flow velocity, and it will not affect passers-by. The purpose is achieved by a very low-capacity pump that simply pumps the water to a relay water tank installed on the roof, so that an inexpensive roof cooling system can be provided. In particular, a liquid level detector for detecting the level of water stored in the relay water receiving tank is provided, and the roof cooling is configured such that the drive of the pump is controlled by the detection signal of the level detector. According to the system, when more water than necessary is stored in the relay receiving tank, the pump is stopped so that water can be saved, and a certain amount of water is allowed to flow from the relay receiving tank to the sprinkler. Since it is comprised, the water pressure concerning a watering apparatus can be kept low and substantially constant, and this can provide a low energy roof cooling system. The present invention exhibits a particularly remarkable cooling effect when the roof is a metal roof such as a folded plate structure or a tile rod structure.

  In the present invention, it is desirable to install the relay water receiving tank on the roof as described above, but even if this relay water receiving tank is omitted depending on the situation, the effect is not lost.

  1-4 is explanatory drawing of the roof cooling system based on 1st Embodiment of this invention, FIG. 1 is a perspective view which shows the whole system, FIG. 2 is the top view, FIG. 3 is the right view, FIG. 4 is a sectional view taken along line XX in FIG.

  As shown in the figure, the roof cooling system 1 is applied to a roof 6 having a single-flow structure and a tile rod structure, and the pumped water is supplied from the second water storage tank 3 following the first water storage tank 2 to the pump 4. Is stored in the relay water receiving tank 20 installed on the roof 6 through the standing water supply pipe 5 and the connecting pipe 5A, and the stored water is sprinkled on the upper ridge portion 7 of the roof 6 through the connecting pipe 8C. Poured into the horizontal water supply pipe 8A of the apparatus 8 and a dotted line between the water spray nozzle 8n of the water spray pipe 8B communicating with the horizontal water supply pipe 8A and the mountain portion 9 of the tile roof, that is, the valley 10 of the tile roof. As shown by the arrows, the water is sprayed and cooled. In addition, the surplus water used for cooling the trough portion 10 of the roof tile roof is collected in the first water tank 2 through the eaves 11 and the vertical rod 12 and reused.

  As shown in FIG. 3, the relay water receiving tank 20 is formed by mounting and fixing a bowl-shaped water tank 22 having an open top on a pedestal 21 installed in a horizontal state in the upper ridge portion 7 of the roof 6. In addition, the shape and size of the relay water receiving tank 20, the installation method on the roof 6, and the like are arbitrarily set depending on the cooling specifications.

  As shown in a cross-sectional view in FIG. 4, this water tank 22 has a known liquid level detector comprising a float 23A for detecting the liquid level of the stored water and a limit switch 23B that operates in conjunction with the vertical movement of the float 23A. When the water stored in the water tank 22 as shown by the arrow from the connecting pipe 5A is stored at a predetermined water level, that is, when the liquid level becomes H2 or H1, the detection signal S is sent from the liquid level detector 23. The detection signal S is output, and the drive or stop of the pumping pump 4 is controlled. Since such a control method is known, a description thereof will be omitted.

  The water stored in the water tank 22 flows slowly through the pipe line of the connecting pipe 8C and is sent to the lateral water supply pipe 8A of the watering device 8.

  As shown in FIG. 2, the watering device 8 is connected to the relay water receiving tank 20 through the connection pipe 8 </ b> C at one end side as described above, and the horizontal water supply pipe 8 </ b> A closed at the other end along the roof ridge 7. On the other hand, one end side of the water spray pipe 8B in which water spray nozzles 8n are drilled at equal intervals toward the trough 10 of the roof tile roof on the pipe wall is connected to one end side of the horizontal water supply pipe 8A, and the water spray pipe 8B. Is connected to the other end side of the lateral water supply pipe 8A. Note that the nozzle size (caliber), nozzle interval, and the like of the watering nozzle 8n are set mainly in consideration of the shape, material, total area, and the like of the trough portion 10 of the roof of the tile rod that requires cooling.

  According to the watering device 8 in the main roof cooling system 1 configured as described above, the water pumped by the pumping pump 4 and stored in the relay water receiving tank 20 through the standing water supply pipe 5 and the connection pipe 5A is connected to the connection pipe 8C. When the water is fed from the water supply pipe 8A to the horizontal water supply pipe 8A, it circulates between the horizontal water supply pipe 8A and the water spray pipe 8B at an equal pressure, so that water gradually flows out little by little from any water spray nozzle 8n with a substantially uniform pressure. Thereby, the trough 10 of the roof tile roof is evenly cooled.

  By providing the relay water receiving tank 20 in this way, when more water than necessary is stored in the water tank 22, the drive of the pump 4 is stopped based on the detection signal S of the liquid level detector 23, so that water saving can be achieved. In addition, since the liquid level is maintained substantially constant, a substantially constant amount of water can always flow from the relay water receiving tank to the watering device, thereby keeping the water pressure applied to the watering device low and substantially constant. it can.

  Here, the first water storage tank 2 has a function of filtering and storing rainwater or water used for cooling, and is configured by a net material or a filter material or the like at an upper position for receiving water from the vertical rod 12. A filtration device 2A is provided, and a weir 2B is provided therein to form a multistage cascade. The earth and sand settled on the bottom of the first water tank 2 is removed by regular cleaning or the like, and only the water that has been filtered and purified is stored in the second water tank 3 as indicated by the dotted arrows in FIG. The When the stored water in the second water storage tank 3 is full, it is drained to the outside through the overflow pipe 3A. In the present embodiment, rainwater or water used for cooling is received in the first water tank 2, but in addition to this, for example, remaining hot water in a bath or rinse water for washing is received. Is also possible.

  In addition, the pump 4 used in the present invention is not limited as long as it has an ability to pump the stored water in the second water tank 3 to the relay water tank 20 on the roof 6. There is no need for expensive capacity.

  As described above, the roof cooling system 1 is configured such that the water sent from the relay water receiving tank 20 to the sprinkler 8 slowly flows out little by little toward the trough 10 of the roof tile roof with a substantially uniform pressure. As a result, the troughs 10 of the roof tile roof can be evenly cooled, and no water droplets will scatter, so there is no concern for passers-by. Furthermore, since the pump 4 to be used can be obtained at a low price, an inexpensive roof cooling system can be provided.

  5 and 6 are explanatory views of the roof cooling system 100 according to the second embodiment of the present invention, FIG. 4 is an elevation view thereof, and FIG. 5 is a top view of the main part thereof.

  The present roof cooling system 100 relates to a modification of the first embodiment described above, and the other components except for the point that the shape of the watering device 108 and the roof 6 is gable is substantially the same as that of the first embodiment. Since they are the same, in the following, common constituent elements will be described with the same reference numerals.

  In other words, the roof cooling system 100 is substantially formed by applying the mechanism of the watering device 8 in the first embodiment to the watering device 108 and installing it on the gable roof 6.

  The water spray device 108 in the roof cooling system 100 is configured to spray water on the roof surfaces 10 on both sides of the roof 6. That is, as shown in FIG. 6, the watering device 108 is connected at one end side to the relay water receiving tank 20 installed on the roof 6 in the same manner as in the first embodiment via the connecting pipe 8 </ b> C and closed at the other end side. While the horizontal water supply pipe 8A is installed along the top part of the roof 6 (the upper ridge part 7), the water spray nozzles 8n are drilled at substantially equal intervals on the pipe wall toward the troughs 10 on the tile roofs on both sides. Each end of the two series of water spray pipes 8B1 and 8B2 is connected to one end of the horizontal water supply pipe 8A, and each other end of the water spray pipes 8B1 and 8B2 is connected to the other end of the horizontal water supply pipe 8A. Yes. In addition, since the horizontal water supply pipe 8A flows out water toward the trough portions 10 of the tile rod roofs on both sides, the pipe diameter is set larger than that in the case of the first embodiment.

  According to the watering device 108 in the main roof cooling system 100 configured as described above, water is pumped up by the pumping pump 4 through the standing water supply pipe 5 and the connecting pipe 5A as in the case of the watering apparatus 8 in the first embodiment. When the water stored in the relay water receiving tank 20 is sent out from the connection pipe 8C to the horizontal water supply pipe 8A, it flows between the horizontal water supply pipe 8A and the water spray pipe 8B at a substantially equal pressure, thereby which water nozzle From 8n, water slowly flows out little by little with a substantially uniform pressure, whereby the trough 10 of the roof tile roof is evenly cooled.

  7-9 is explanatory drawing of the roof cooling system 200 which concerns on 3rd Embodiment of this invention, FIG. 7 is the elevation view, FIG. 8 is the disassembled perspective view of the watering apparatus 208 which is the principal part, FIG. FIG. 9 is a YY sectional view of FIG. 8.

  The roof cooling system 200 relates to a case where the roof shape is a single-flow construction similar to that of the first embodiment, but the configuration of the watering device 208 that is the main part is essentially the same as that of the watering device 8 in the first embodiment. Is different.

  That is, as shown in FIGS. 7 and 8, the watering device 208 in the main roof cooling system 200 is connected to the relay water receiving tank 20 at one end side via the connecting pipe 8C, and opened at the other end side. A U-shaped water spray pipe 208C having a lid 208A attached thereto with a screw 208B is installed along the upper ridge part 7 of the roof 6 at a predetermined angle θ1 at which water inside can flow down. . In the longitudinal direction inside the sprinkling pipe 208C, weir plates 208D are erected at substantially equal intervals, and on the pipe wall 208Cw on one side (the roof surface 10 side) of the sprinkling pipe 208C between the weir boards 208D, a tile rod is provided. A watering nozzle 208Cn is drilled toward the trough 10 of the roof. The height of the weir plate 208D is set lower than the height of the pipe wall 208Cw, and the watering nozzle 208Cn is formed at a position lower than the height of the weir plate 208D.

  Here, the installation angle θ1 of the water spray pipe 208C, the installation interval of the weir plate 208D, the nozzle size (bore diameter) of the water spray nozzle 208Cn, the nozzle interval, etc. are mainly the shape of the roof surface 10 that requires cooling, Set based on material, total area, etc. Note that the weir plate 208D does not necessarily need to stand vertically with respect to the bottom surface of the water spray pipe 208C, and may be set to have an acute angle in the direction of the connection pipe 8C. Moreover, it is also possible to set the installation angle θ1 to an arbitrary angle by providing an adjustment screw between the water spray pipe 208C and the upper ridge portion 7 and adjusting the screw.

  According to the watering device 208 in the main roof cooling system 200 configured as described above, the water pumped by the pumping pump 4 and stored in the relay water receiving tank 20 through the standing water supply pipe 5 and the connection pipe 5A is connected to the connection pipe. After flowing out of 8C, as shown by a dotted arrow in FIG. 9, the water is blocked by each dam plate 208D on the way, and the dammed water gets over the dam plate 208D and gradually flows down. While flowing down in this way, the weired water slowly flows out little by little from the watering nozzle 208Cn toward the trough 10 of the roof tile roof as shown by the solid line arrow. Surface 10 is cooled. In the meantime, mud, dust, etc. may accumulate on the corners of the bottom surface of the weir plate 208D and the water spray pipe 208C, and such deposits can be removed by removing the lid 208A from the water spray pipe 208C. it can.

  10-12 is explanatory drawing of the roof cooling system 300 which concerns on 4th Embodiment of this invention, FIG. 10 is the top view, FIG. 11 is the watering apparatus which comprises a part of the watering apparatus 308 which is the principal part. FIG. 12 is an exploded perspective view of 208, and FIG.

  This roof cooling system 300 relates to the case where the shape of the roof 6 is a dormitory structure, and is configured by combining the watering device 308 which is a main part with the watering device 108 and the watering device 208 described above.

  Specifically, as shown in FIG. 10, a watering device 108 is installed in the upper ridge portion 7 of the roof 6, and a watering device 208 is installed in the inclined ridge portion 7A. In addition, since the structure of the watering apparatus 108 installed in the upper ridge part 7A is substantially the same as that mentioned above based on FIG. 6, this detailed description is abbreviate | omitted.

  As shown in FIG. 11, the configuration of the watering device 208 installed at the inclined ridge portion 7A with an angle θ2 is as shown in FIG. 8 except that the watering nozzle 208Cn is formed in both the pipe walls 208Cw of the watering pipe 208C. Based on this, it is substantially the same as described above. The direction of the watering nozzle 208Cn drilled in both the pipe walls 208Cw is set substantially perpendicular to the wall surface as shown by an angle θ3 in FIG.

  The watering device 208 formed by assembling the lid 208A to the watering pipe 208C is attached to one opening of the branch pipe 5B, one end of which is connected to the horizontal water supply pipe 8A and the other end is bifurcated. Is fixed at an inclination angle θ2. The other one opening part of the branch pipe 5B is assembled | attached with the watering apparatus 208 installed in the inclined ridge part 7A on the opposite side. A connecting pipe 8C connected to the relay water receiving tank 20 installed in a horizontal state on the roof 6 is connected to a substantially central portion in the longitudinal direction of the horizontal water supply pipe 8A. In the present embodiment, the inclination angle θ2 of the watering device 208 coincides with the inclination angle of the inclined ridge portion 7B, but it is described above that the inclination angle θ2 can be set to an arbitrary angle. Just as you did.

  According to the watering device 308 in the main roof cooling system 300 configured as described above, the water introduced from the standing water supply pipe 5 to the horizontal water supply pipe 8A in the upper ridge portion 7 is shown in FIG. While slowly flowing out from the sprinkling nozzles 8n of the sprinkling pipes 8B1 and 8B2 in the sprinkling apparatus 108 little by little in the direction orthogonal to the horizontal water supply pipe 8A, the water introduced into the sprinkling apparatus 208 from the branch pipe 5B in the inclined ridge portion 7A In the process of flowing down the sprinkling pipe 208C, the sprinkling nozzles 208Cn on both pipe walls 208Cw slowly flow out in small amounts in a direction perpendicular to each other, as shown in FIG. The entire surface of the part 10 is cooled.

  As described above, the content of the present invention has been described for the case where the roof has a tile rod structure. However, the present invention is not limited to the tile rod structure, and may be a folded plate structure, a corrugated plate roof, or the like. May be a normal tiled roof. In addition, it is preferable to apply this invention to the metal roofs, such as a tile rod structure and a folded-plate structure, or a slate plate roof from the surface of thermal efficiency.

  Moreover, the above embodiments are all configured such that a relay water receiving tank is provided on the roof, and the water receiving tank is relayed to sprinkle water. Depending on the situation, it is possible to omit this relay water receiving tank and pump water directly from the pump to the watering device.

  That is, the watering device is provided with a water supply pipe having one end connected to a pump and the other end closed along the upper ridge portion of the roof, while water nozzles are arranged at substantially equal intervals on the pipe wall toward the roof surface. One end side of a water spray pipe drilled in the water pipe may be connected to one end side of the water supply pipe, and the other end side of the water spray pipe may be connected to the other end side of the water supply pipe. One end side of the device is connected to a pump, and a water spray pipe having a water spray nozzle drilled toward the roof surface on the pipe wall between the barrier boards is arranged in the pipe. It may be configured to be installed in the upper ridge part and / or the inclined ridge part of the roof so that water flows down.

  It should be noted that the above description is merely an embodiment of the present invention, and a mere design change or configuration change by conventional means that achieves the same operational effect is included in the embodiment of the present invention. It is.

It is a perspective view showing the whole roof cooling system concerning a 1st embodiment of the present invention. FIG. 2 is a top view of FIG. 1. It is a right view of FIG. It is XX sectional drawing of FIG. It is an elevation view showing a roof cooling system according to a second embodiment of the present invention. It is a top view which shows the principal part of FIG. It is an elevational view showing a roof cooling system according to a third embodiment of the present invention. It is a disassembled perspective view of the watering apparatus which is the principal part of FIG. It is a YY sectional view of Drawing 8, and is a figure showing the flowing down state of water. It is a top view which shows the roof cooling system which concerns on 4th Embodiment of this invention. It is a disassembled perspective view of the watering apparatus which is the principal part of FIG. It is a ZZ cross-sectional top view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,100,200,300 Roof cooling system 2 1st water tank 3 2nd water tank 4 Pumping pump 5 Standing water supply pipe 5A, 8A Connection pipe 6 Roof 7 Upper ridge part 7A Inclined ridge part 8, 108, 208, 308 Sprinkler 8n, 208Cn Sprinkling nozzle 9 Peak part of roof of roof tile 10 Valley part of roof of roof of roof tile 11 Eaves wall 12 Standing wall 20 Relay receiving tank 23 Liquid level detector

Claims (6)

A watering device used in a roof cooling system that cools a roof surface by flowing water by watering, wherein weir plates are arranged at substantially equal intervals, and the roof is formed on a pipe wall between the shrouds. A water spray pipe having a water spray nozzle drilled toward the surface is provided, and is configured to be installed in the upper ridge part and / or the inclined ridge part of the roof so that the water in the water spray pipe flows down. Watering device.   In the roof cooling system in which the stored water is pumped to the roof by a pump, and the roof surface is cooled by spraying water through a sprinkler, a relay water receiving tank connected to the pump by a water supply pipe is disposed on the roof. The watering device is connected to the relay water receiving tank at one end, and a weir plate is disposed at substantially equal intervals inside, and a watering nozzle is provided on the tube wall between the weir plates toward the roof surface. A roof cooling system characterized in that a water spray pipe in which is formed is installed in the upper ridge part and / or the inclined ridge part of the roof so that the water in the pipe flows down. The relay water receiving tank is provided with a liquid level detector for detecting the liquid level of water stored therein, and the drive of the pump is controlled by a detection signal of the liquid level detector. The roof cooling system according to claim 2 .   In the roof cooling system in which the stored water is pumped to the roof by a pump, and the roof surface is cooled by spraying the water through the water spray device, the water spray device is connected to the water pump at one end side and is substantially equidistant inside. And a water spray pipe having a water spray nozzle drilled toward the roof surface on a pipe wall between the water barrier boards, and / or an upper ridge portion of the roof so that water in the pipe flows down. A roof cooling system characterized by being installed in an inclined building. The roof cooling system according to any one of claims 2 to 4 , wherein the shape of the roof is one of a single flow, a gable, and a dormitory. The roof cooling system according to any one of claims 2 to 5 , wherein the roof surface is formed of a metal plate or a slate plate.

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