Geothermal heat utilization cooling and heating system

Abstract

To construct a cooling and heating system utilizing geothermal heat, which has less installation cost and operation cost.SOLUTION: A geothermal heat and solar heating and cooling system comprises a well for pumping groundwater, means for groundwater infiltration (a well, an infiltration basin, permeable pavement), a reservoir, solar panels, a heat exchanger, and a heating and cooling facility in a building. The geothermal heat and solar heating and cooling system uses electricity generated by the solar panels to drive a pump to draw up groundwater and supply it to the reservoir; exchanges heat from water in the reservoir to heating and cooling heat in a building with the heat exchanger; and returns water that overflows from the reservoir back into the ground.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a technique for utilizing geothermal energy for heating and cooling. [Background technology]

[0002] Attempts are being made to utilize geothermal heat, which is a constant temperature all year round. Sewage is pumped up and used to melt snow on the roads. There are also methods such as sprinkling groundwater on the road surface and using heat exchangers. One method is to pump up the groundwater and return it underground through an injecting well. Many technologies have also been proposed to use geothermal energy for heating and cooling. Patent Document 1 (JP Patent Publication 2010-281493 A) describes a method for extracting geothermal water from an aquifer. The outer casing is buried in the ground, and a geothermal water infiltration strainer is used to infiltrate the geothermal water from the aquifer into the outer casing. The geothermal water pump that pumps up the geothermal water that has infiltrated into the exterior pipe and the geothermal water pump that pumps up the geothermal water that has infiltrated into the exterior pipe A geothermal water supply pipe that circulates hot water to a designated site as a heat source, and a The geothermal water return strainer returns the geothermal water that is returned to the aquifer through the exterior pipe. A storage tank that collects and stores the meltwater, rainwater, and water generated without allowing it to flow outside the site. A water sprinkler means for sprinkling the water from the storage tank on the site, and a water sprinkler means for sprinkling the geothermal water from the geothermal water supply pipe to the storage tank. A geothermal water environment conservation type heat supply system including a geothermal water supply means for appropriately supplying water for use. has been proposed. The air conditioning system described in Patent Document 2 (JP Patent Publication No. 2013-137187) is a water tank. The water tank is installed in an underground space adjacent to or close to the building. The rainwater is stored in the water storage section, and a moisture permeable layer is placed on the top surface of the water storage section to allow moisture to pass through. The circulation path circulates the rainwater stored in the water tank through the house. The heat exchanger is installed in the residence through which the circulation path passes, and exchanges heat with the air in the residence and stores it. The water tank is built by filling the gaps between stones in the underground space with rainwater. The exterior walls of buildings suppress heating caused by glare and radiant heat, so heating of the exterior walls of buildings is suppressed. An air conditioning system capable of doing so is disclosed. In Patent Document 3 (JP Patent Publication 2010-190435A), a A seepage tank is installed above the heat exchange well where the circulation pipe through which the refrigerant or heat transfer medium is circulated. A water infiltration means is provided to infiltrate rainwater or other water into the infiltration tank to promote heat exchange. The rainwater infiltration type ground heat exchange system can exchange ground heat more efficiently by returning it to the original condition. It has been disclosed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-281493 A [Patent Document 2] JP 2013-137187 A [Patent Document 3] JP 2010-190435 A Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional heat extraction pits for extracting underground heat are expensive to install and have high operating costs, making them unprofitable. Unfortunately, the use of geothermal energy is not widespread in urban areas, except for melting snow in snowy regions. The aim is to build a geothermal heating and cooling system that reduces installation and operating costs. do. [Means for solving the problem]

[0005] 1. A well for pumping groundwater, a means for groundwater infiltration (a well, an infiltration pit, permeable pavement), and a reservoir; Equipped with solar panels, a heat exchanger, and heating and cooling equipment for the building, Electricity generated by solar panels is used to drive a water pump to pump up groundwater and store it. The heat of the water in the reservoir is then converted into heat for heating and cooling in the building using a heat exchanger. This is a geothermal and solar power heating and cooling system that returns water into the ground. 2. The building is equipped with radiant heating and cooling partition panels for heating and cooling. Radiant heating and cooling partition panels have a heat exchangeable material inside the PC panel that constitutes the panel body. The pipes that carry the medium are buried, and the surface of the PC panel is uneven. The uneven space acts as an air passage. 1. A geothermal and solar power heating and cooling system as described above. 3. Groundwater pumping wells must draw water from a water vein with a groundwater flow that exceeds the regulated amount of water that can be pumped. 3. A geothermal and solar power heating and cooling system according to claim 1 or 2. 4. The reservoir is a pond that is at least partially exposed above ground and accessible by an external road. 4. The geothermal energy storage device according to any one of 1. to 3., characterized in that a water outlet is provided at a position -Solar powered heating and cooling system. 5. Any of 1. to 4., characterized in that the reservoir is provided adjacent to the first floor living space. The geothermal and solar power heating and cooling system described above. 6. The amount of water intake is controlled so that it is below the regulated amount of water pumped by accumulating the operation time of the water pump. 6. The geothermal heat / solar heat utilization heating and cooling system according to any one of 1. to 5., Hmm. 7. Install the geothermal and solar heating and cooling system described in any of 1. to 6. below without water supply. This is an independent water supply system for disasters that can stop heat exchange at certain times and supply water to nearby areas. Tem. Effect of the Invention

[0006] 1. This heating and cooling system uses geothermal heat as groundwater, pumped from a normal well, and stored in a reservoir. This system supplies heat as a heating and cooling source for buildings when necessary, and uses solar power as pumped hydroelectric power. Since it uses solar power generation, the pumping well can be installed by normal drilling, and the solar power generation works. When the water level is low, the pump is activated and water is stored. There is no need to build a system, which reduces initial costs, and maintenance is also easy because it uses solar power. It is economical. The heating and cooling system of the present invention uses warm groundwater temperature for heating in winter and low groundwater temperature for heating in summer. It can be used as a cooler all year round. 2. After use, groundwater is returned underground through surface watering and infiltration. It does not increase the burden on water facilities and does not cause the groundwater level to dry up. No sewage water usage fees are charged. Depending on whether heating or cooling is required, cold water from the lower pond is released or warm water from the surface is released. This can improve the efficiency of heating and cooling. Overflow water can be sprinkled on the roof to create a water sprinkling effect. The amount of water pumped can be controlled by either the amount of water pumped or the amount of water discharged. For example, the amount of water pumped per unit of time is determined. Therefore, the maximum operation time of the pump corresponding to the regulated amount of water to be pumped is calculated and the operation time of the pump is A timer is used to regulate the time between discharge and discharge. A water meter is also installed at the reservoir outlet to monitor the amount of water discharged. Calculate the amount of water that can be pumped. 3. The reservoir is exposed to the ground surface, so people are aware of the presence of water on a daily basis, making it a hydrophilic area. It can also be used as emergency water and can be used for solar power generation. Because the water is pumped using electricity, water can be continuously secured even if the commercial power supply goes down. It can be used as a disaster prevention water source for the surrounding area. 4. Radiant heating and cooling partition panels with uneven surfaces were used as heat dissipation equipment within the building. Therefore, there is no need to install equipment such as an indoor unit, and since it is a surface heat sink, the temperature difference with the room temperature Even if the surface area is small, it can supply heat energy and provide a gentle, soft heat source. During cooling, even if the temperature of the heat transfer medium flowing through the panel is relatively high, the surface heat dissipation So, it can handle it. This radiant heating and cooling system keeps the temperature high when cooling and low when heating. Since no air current is created by a fan, there is no airflow caused by the wind or leeward It is a heating and cooling method that has a low risk of respiratory infection. 5. In cities located near rivers or at the mouths of rivers, the groundwater veins are high and within a few dozen meters. This invention is suitable for cooling water using groundwater in Japan and other monsoon regions. Suitable for use as a heating system. 6. By placing the reservoir next to the living space on the first floor, it becomes difficult for people to enter the room through the window. This has a crime prevention effect and also provides an excellent view of the waterfront. [Brief description of the drawings]

[0007] [Figure 1] A diagram showing an example of a geothermal and solar powered heating and cooling system. [Diagram 2] FIG. 1 is a diagram showing an example of a heat dissipation panel. [Diagram 3] FIG. 13 is a diagram showing another example of a heat dissipation panel. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 2 is a diagram showing the water flow and watering surface of a reservoir in an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] This invention is an invention that utilizes geothermal heat for heating and cooling buildings in Japan, where the groundwater veins are shallow. This is a system that can be used by the general public with low initial and running costs. In the event of a disaster such as an earthquake, water can be supplied to neighboring areas as an emergency measure against water outages and power outages. This system can be converted into a water supply system. In this invention, groundwater is pumped up from a normal well, stored in a reservoir, and the heat of the groundwater is exchanged. The solar power generation is used as a heat source for heating and cooling buildings. The water pumped up by irregular solar power generation will be stored in a reservoir. The water reservoir can also function as a buffer against fluctuations in the building's heat demand. The amount of water that can be used is estimated by the amount of water that can be used. The depletion of the hydrogen is also prevented. This invention allows wells to be created by ordinary drilling, and the power for pumping is generated by solar power. In addition, the water after use is returned underground, so both the initial cost and running cost can be reduced. Since the reservoir is located within the site, there is no need to worry about drainage costs. This is advantageous in terms of crime prevention, as it makes it difficult for intruders to enter the building, and it also has a hydrophilic effect. It is also expected to improve the scenery and relieve psychological tension.

[0009] In addition, because it uses solar power generation, it can operate even during power outages, and can be used to help with disaster relief in neighboring areas. It can also be used as a water supply facility. Groundwater has little temperature change throughout the year, so it can be used for heating and cooling all year round. be. In addition, many of Japan's cities are located near rivers or at the mouths of rivers, and the underground water veins are deep and several tens of meters deep. Since the area is within 100 km of the sea level, shallow pumping wells are sufficient. This invention is suitable for use in Japan and other monsoon regions. It is suitable as a heating and cooling system that utilizes groundwater.

[0010] Furthermore, even if the temperature difference between the reservoir and the heat medium is small, the present invention can Thermal panels can be used as a heat sink within buildings to provide the necessary heat. Cut. As a means of dissipating heat within the building, heat dissipation panels are used as partition wall panels, and both facing It is also possible to supply heat to the room. The heat dissipation panels are also available as precast panels. Prepare the size or pour the concrete in place and manufacture it for each building to be constructed. It can also be constructed. The heat dissipation panel is designed to have a gap so that the furniture does not stick to the surface of the panel. It is suitable to provide the surface with projections and recesses or to provide convex ribs.

[0011] FIG. 1 shows an example of the configuration of a geothermal and solar power heating and cooling system 10 of the present invention. The geothermal and solar power heating and cooling system 10 includes a groundwater pumping well 1 and a groundwater infiltration means. (Wells, seepage basins, permeable pavement) 2, a reservoir 3, a solar panel 4, and a heat exchanger 5. The building is equipped with an in-building heating and cooling facility 6 having a partition panel 7 with a heat dissipation function. The electricity generated by the solar panel 4 is used to drive the water pump 11 to pump up groundwater. The heat of the water 31 in the reservoir is exchanged by a heat exchanger 5 for heating and cooling the building. The water after the heat exchange is returned to the ground using groundwater infiltration means 2 such as sprinkling.

[0012] The groundwater pumping well 1 is a well that reaches the groundwater vein W by boring or the like. Groundwater veins are generally shallow in Japanese cities and residential areas, about 10 to 50 meters underground. Japan's cities and residential areas are located in river basins, and the water is constantly renewed as underground flow. New water can be taken in. Water is taken from a pumping well 1 using a pump 11 and stored in a reservoir 3 . The water pump 11 is driven by the electric power obtained by using the solar power generation panel 4. Although the amount of electricity generated is not constant, by storing water in Reservoir 3, the amount of water needed for heating and cooling in the building can be secured. The reservoir is pumped by a water pump 11 driven by unstable solar power. It also serves to adjust the imbalance between the amount of heat and the heat demand of the building 61.

[0013] The reservoir 3 is a facility for storing water taken from the pumping well 1 by the pumping pump 11. In principle, the facility should be installed within the premises of a building 61 that uses a medium heat / solar heating and cooling system 10. The reservoir 3 can be installed above ground or underground, but it is recommended to install it above ground. This allows the head difference to be utilized when supplying water to the heat exchanger 5 or when spraying water, thus saving energy. The same applies to supplying water in an emergency. If installed underground, the top surface can be used for a garden or parking space. In this invention, the reservoir is installed underground because it also serves as an emergency water supply for the neighborhood in case of an emergency. Even if the building is damaged, it should be partially exposed so that it can be recognized by neighbors on a daily basis. is desirable. The amount of water stored in the reservoir 3 is designed based on the demand for heating and cooling in the building 61. Since the operation of the pump depends on the power generated by the solar panel 4, a margin was set in anticipation of the pump operation rate. Set to capacity. By adjusting the management of the pond water for cooling and heating, the efficiency of heating and cooling can be improved. The temperature of the pond water is such that cold water accumulates at the bottom, so during the heating season, the water in the pond is kept at the bottom (lower layer). In the cooling season, the upper layer of the pond is drained (the surface layer side) to release the cold bottom water. Once discharged, the ponds can store cold or warm water for different purposes. Cut. A pump can be used for regulation or it can be gravity discharge. The regulating pump has suction ports at the top and bottom of the pond, and these ports are separated for use. . In natural discharge, warm water is released by overflowing from the outlet on the top. A sink and an outlet on the lower side of the pond can be used to release cold water. can be controlled manually or automatically by providing an on-off valve. In addition, if there are restrictions on the use of groundwater in some areas, the amount of water discharged will be measured and kept within the limits. Or, install a measuring device on the pump side to keep the pumping volume within the limit. The amount of water pumped can also be controlled by managing the operating hours of the pump. By controlling the cumulative operating time with a timer, the operation of the water pump can be limited and the amount of water pumped can be reduced. can be kept within an acceptable range.

[0014] By placing the pond next to the building, it becomes difficult for insects to enter the building through the pond. It is also useful for security design. To create a steady water flow from the well where groundwater is pumped to the outlet where the pond water is discharged. This prevents the accumulation of leaves and algae, keeping the pond clean. For example, make it triangular, place an outlet at one corner, and place a water inlet from a well on the opposite side. This allows the water flow to accelerate toward the outlet. The water flow can be controlled by using a water supply pipe with multiple water supply holes. can be done. In addition, fish such as carp and goldfish, and water plants such as lotus and floating plants are placed in the pond to add a hydrophilic effect. It is also possible.

[0015] The solar panel 4 is installed in an open space such as the roof of the building 61. The generated power is used to drive at least the water pump 11. The water pump 11 is It can be operated at any time, and when the water in the reservoir 31 overflows, the groundwater infiltration method The water may be returned underground through the stage 2. Also, a water level sensor may be installed in the reservoir 3 to measure the water level of the pumped water. It is also possible to control the operation of pump 11 so as not to take in more water than necessary. The water pump of this invention is driven by private solar power generation, so it is independent and can be used even in emergencies. It can be driven.

[0016] The heat exchanger 5 can be a heat pipe, a heat pump, a heat collection pipe, or the like. Many such heat exchange means have been proposed.

[0017] The building heating and cooling equipment 6 supplies the cold and hot heat obtained through the heat exchanger 5 to the building 61. The heat can be dissipated indoors using an air conditioner or a heat sink. In this case, the partition panel 7 is used as a heat sink. By dissipating heat from the partition panel 7, a gentle thermal environment can be created overall. In addition, the partition panel has parallel convex ribs or multiple grooves. By making the surface uneven, the furniture is not in close contact with the panel, and a space for heat dissipation is secured. It is also possible.

[0018] The groundwater infiltration means 2 is a means for returning the heat-exchanged water 31 from the reservoir underground. For example, There are also wells for reducing water, infiltration pits, and permeable pavement. Some of the water is used for watering the garden, etc. It can also be used for sprinkling water on trees during the seasons and to melt snow in winter. By establishing a biotope and watering it, we hope to encourage local residents to use groundwater on a regular basis. This will raise awareness and it is expected that it will be used as an emergency water source.

[0019] This invention is a heating and cooling system that uses shallow groundwater as a heat source, which is suitable for residential areas in Japan. The pumping energy is provided by solar power generation, so the facility can be operated independently. It is energy-efficient because it does not require commercial electricity. The imbalance between the supply of groundwater by the pump and the heat demand of the building is adjusted by providing a water reservoir. It is possible. Above-ground reservoirs have water near the surface, making them ideal for urban greening, firefighting water in disaster prevention, and other purposes. Since it will be possible to use water for daily life in disaster prevention, there will be a high incentive to introduce it, and it will contribute to social infrastructure. It is expected that this technology will also become popular as a radio. The Western-style geothermal energy utilization method, in which heat collection pipes are laid about 100m underground, requires uniform and hard strata. However, in areas with complex geological formations such as Japan, it is difficult to extract heat from them. The cost of drilling wells is high, so this method is not widespread. This invention pumps shallow groundwater and stores it in surface water. Since heat is extracted using water stored in a pond, it can be installed and operated at low cost. In Tokyo's wards, it is 10 to 20 meters. 3 / day of groundwater can be extracted, which is used for heating and cooling. By doing so, carbon dioxide emissions can be significantly reduced. By returning it underground through asphalt, etc., there is no burden on the sewage system. The present invention secures the driving power of the pump from solar power generation within the building site, collects groundwater, It is self-contained and does not burden others, and it is also convenient for nearby emergency water sources. It is a system that can contribute to the local community by providing a power source.

[0020] An example of heat dissipation panel A is shown in FIG. The partition panel 7 is disposed between the floor 62 and the ceiling 63 of the building to separate the left and right rooms R1 and R2. The partition panel 7 is installed to separate the room. It is made up of precast concrete panels or cast-in-place concrete. . In the present invention, a heat insulating material 76 is sandwiched in the center of the inside of the partition panel 7, and cold water or The hot and cold water pipes (pipes) 72 for circulating hot water are embedded in the partition panel for radiant heating and cooling. This forms Rule 7. As an example of a partition, a PC panel with a width W of 2,000 mm and a height H of 2,000 mm is used. The hot and cold water pipe 72 is a cross-linked polyethylene pipe with an inner diameter of 7 mm and an outer diameter of 10 mm, about 27 m long. When wire mesh made of 6 mm diameter wire is used, The thickness of the panel could be 90 mm. In this case, the contact between the hot and cold water pipe 72 and the surface The thickness of the cleat (the thickness of the pipe on the surface side) and the concrete thickness between the hot and cold water pipe 72 and the back side ( The thickness of the pipe on the back side was set to 40 mm. Then, 13°C cold water is circulated through the hot and cold water pipe 72 of this panel at a flow rate of 2.5 (l / min). When the temperature is increased, the amount of heat dissipated from both sides is 360 (kcal / h), and the surface 7a of room R1 is 18. The temperature on surface 7b on the side of room R2 was 19.5 to 20.0°C. Since a heat insulating material 76 is provided in the center, the hot and cold water pipes 72 can be provided on only one side.

[0021] According to the radiant cooling and heating partition panel 7 having the above-mentioned configuration, separate systems are provided on both sides of the panel. By providing cold and hot water pipes 72a and 72b, and passing cold water and hot water separately, the surface of the panel The surface 7a and the back surface 7b individually radiate or absorb heat. As a result, the rooms R1 and R2 are Can be adjusted to different temperatures.

[0022] From the viewpoint of preventing condensation during cold radiation operation, the surface 7a of the panel shown in FIG. The panel has an uneven surface. When the panel is in cold radiation operation, the surface 7a of the panel comes into surface contact with furniture, etc. In this case, condensation may occur on the contact surface. The PC panel has a concave and convex shape, such as a wave shape, so there is a gap between the panel and furniture, etc., and the surface of the PC panel is By creating an air flow between the wall and the back of the furniture, it is possible to eliminate stagnation of air and prevent condensation. In addition, by making the surface 7a uneven, the heat exchange surface The heat transfer due to the air flow near the surface 7a becomes large, especially when used in conjunction with an air conditioner. This also makes it possible to increase the heating and cooling effect.

[0023] Figure 3 shows an example of a heat dissipation panel B with convex ribs spaced apart on the panel surface. (a) (a) Plan view, (b) cross section, (c) piping diagram, and (d) enlarged cross section. The heat dissipation panel B shown in the figure is basically the same size as other wall panels so that it can be mixed and used. For example, the height from floor to ceiling is about 2500mm. The width is about 1800mm, the same as a normal standard wall panel. The thickness is about 120mm. . Radiation panel B is a concrete precast plate (PC plate). 82 is located, and welded wire mesh 86 is arranged on both sides of it, and a concrete is inserted to embed these. The cleat 81 is filled and hardened. The concrete surface 8a has a raised rib 83. The rib 83 has a rib head 83a which is a long and thin material and is a point-attached material. The concrete surface is attached to the rib feet (screws, etc.) 83b. The rib legs 83b are provided in a row of six. For example, the rib head 83a has a width of 25 mm. , thickness 20 mm, rib leg 83b is 20 mm. Therefore, when pushing furniture against the wall, However, the rib head 83a comes into contact with the rib, creating a space. This means that air can flow up and down through the gap of 3.5 m. In addition, even when the radiation panel is made of cast-in-place concrete, the convex ribs are It can be installed as an add-on like B.

[0024] The hot and cold water pipes 82 are arranged in a serpentine manner in the panel as shown in FIG. (c), with the pipes at the upper corners. The inlet 82a and the outlet 82b are arranged in parallel and in series. The tube size and material are similar to those used in radiator panel A. EXAMPLES

[0025] Located in the eastern area of ​​Tokyo, with a floor area of ​​approximately 100 m 2 The building layout is shown in Figure 4. show. It is a semicircular, five-story building on an almost rectangular site. The facilities related to geothermal energy utilization are as follows: Reservoir: 24m 2 , water storage capacity 13m 3 Pumping well: 20m deep Water pump: Horizontal pump for deep wells heat exchanger Solar panels (rooftop installation) Radiant heat dissipation panel: the panel shown in Figure 2

[0026] Figure 4 shows the ground floor layout. A reservoir 3 is provided to the northwest of the fan-shaped building 61, and an island 32 is provided in the center. A water pump was installed at the bottom of the door. The eastern and southern ends of Reservoir 3 are used to overflow the pond water. A water outlet 34 is provided. The west, north, and northeast of the site are paved with permeable asphalt21, and the building is surrounded by a reservoir and a permeable The entrance from the outside road and around the entrance are paved with normal pavement. The heat exchanger 5 is installed at the southwest end of the building 61. The location of this heat exchanger is restricted. It is not mandatory and is optional. Building 61 is a five-story building with four rooms on the first floor, and the partition walls between the rooms are radiantly cooled. A heating partition panel 7 is used. In this example, in the part where a part is a structural wall, Radiant heating and cooling partition panels are not used.

[0027] The reservoir 3 is formed adjacent to the dwelling rooms 2, 3, and 4 on the first floor, so that water can be easily received from the windows 64 of each room. You can see the water surface from the balcony, giving you a sense of openness and closeness to the water. Therefore, it is difficult for burglars to break in through the windows, and the pond serves as a crime prevention function. Although the price of the unit is estimated to be low, these effects can increase the value of the unit. .

[0028] FIG. 5 is a schematic diagram showing a north-south cross section passing through an island 32 provided in the reservoir 3 . A pumping well 1 is installed on an island 32 in a reservoir 3, and a pumping pump 11 is installed on the pumping pipe. The water pump is driven by electricity generated by solar panels installed on the roof of the building. Use. The reservoir 3 is surrounded by a reservoir wall 33, which is made of a diaphragm such as polystyrene foam. The heat insulating layer 33a is made of heat insulating material and the concrete 33b is wrapped around it. It suppresses movement. The depth of the pumping well will be set so that a sufficient amount of water can be obtained. The groundwater level in this area is high. , pumping volume is 10m 3 / day, so there must be a water vein that can secure this amount of water. The depth of the well is set based on this. A heat collection pipe 51 runs through the pond. The heat medium is sent from the heat collection pipe 51 to the heat exchanger. The heat is then exchanged and supplied to partition panels for radiant heating and cooling, etc.

[0029] Figure 6 shows the configuration of the outlet for the water that overflows from the reservoir. A water receiver 35 is provided under the opening 34, and a water basin 36 is provided on the ground. The water receiver 35 or the water basin 36 is provided with a cold water outlet 37. It can catch and remove floating objects such as fallen leaves and floating seaweed, and can also remove garbage from overflow water. The receiving net is also installed at the cold water outlet 37. It can be done. The overflowing water is available in the water receiver 35 and water basin 36. The water that runs off spreads over the permeable asphalt pavement and is absorbed into the ground. The water evaporates from the permeable asphalt pavement, providing a water sprinkling effect and reducing the surrounding temperature. The warm water from the surface is released and the relatively cool water remains in the pond, providing an efficient cooling effect. It is possible. In cold seasons, cold water from the bottom of the pond is discharged from the cold water outlet 37 to return the pond to relatively warm water. Since the water remains, the heating effect can be achieved efficiently.

[0030] In addition, in this eastern Tokyo area, 3 The amount of water pumped per day is allowed The reservoir is designed so that the water can be replaced approximately once a day. Measure the amount of water pumped up and measure it to 10m. 3 The pumping volume is set at an upper limit of 1000m / day. Since the time is proportional to the time, it can be controlled by setting an upper limit on the operating time. That is, the pumping capacity per unit time (Am 3 / h) × cumulative operating time (Xt) ≦Limited water volume (Maxm 3 ), so the operating time limit (Bt) = the water limit (Maxm 3 ) / pumping capacity Power (Am 3 / h). Note that the timer must be set within the operating time limit (Bt). It can be set arbitrarily to ensure the required pumping volume. It is also possible to measure the amount of water discharged, restrict discharge, and control the water pump.

[0031] Figure 7 shows an example of a reservoir with controlled water flow and an example of controlled water sprinkling. The shape of the reservoir shown in FIG. 7 is the same as that shown in FIG. 4, but is not limited to this. Needless to say, it is not something that can be achieved. In the illustrated example, the shape of the water reservoir 3 is a substantially right-angled triangle with the right angle at the upper left of the figure. The reservoir 3 has an island on which a pumping well 1 is installed. 32 is located to the left of the reservoir 3 shown in the figure, and at the acute angle, there are water outlets 34, 34b The water that overflows from the water outlets 34 and 34b is dispersed and sprayed. The simulation was conducted with diffusion 24 and 24b. On a midsummer day with an outside temperature of 35°C, the pumped groundwater temperature was 1 At 8°C, the watered surface was measured at 26°C, the shaded asphalt surface at 41°C, and the outside road surface (sunlit surface) at 60°C. The effect of watering on reducing temperature was confirmed. Water is supplied from the pumping well 1 through a discharge pipe 22 with many discharge holes, and the discharge ports 34, 34 The water flow toward b is made to cover the entire surface of the pond. Floating matter such as fallen leaves and floating seaweed is generated. The flow of water in the pond is controlled, and overflow water is discharged from the water outlets 34 and 34b to clean the pond. By providing a receiving net at the water outlets 34 and 34b, the water can be dispersed. This can prevent the water surface from becoming polluted. In addition, the shape of the reservoir varies depending on the shape of the site and building, so the shape of the reservoir and the location of the outlet A water outlet will be provided to control the water flow depending on the location. The discharge pipe 22 is designed with a layout and discharge holes according to the shape of the pond and the water flow to be set. There are several water discharge holes extending along the short side of the reservoir 3. There is also a water discharge hole at the rear of the island. Pipes are installed to prevent stagnation at the rear of the island. Clean groundwater is supplied. Therefore, by forming a water flow without stagnation, it is possible to prevent the growth of mosquito larvae and algae in the summer. It can be suppressed. Planting lotus plants and releasing fish into the pond will add to the charm of the pond. Fish are also effective in getting rid of mosquito larvae. It is.

[0032] The water sprinklers 24, 24b are used to disperse water that naturally overflows from the water outlets 34, 34b. However, depending on the shape of the site and the climate, the water may not be able to spread far. For example, in midsummer, it is desirable to spread far, but water evaporates quickly and the drought In such a case, the water may rise up to the farthest part of the property. The sprinkler pipes 25, 25b can be arranged as shown in FIG. The sprinkler pipes can be used to irrigate plants by passing them near the plants. can. In addition, in winter or in cold regions, the water may freeze, making walking dangerous. Therefore, a return hole 26 is provided to return unnecessary overflow water to the underground, and a return pipe 26b is provided. Water is introduced from the reservoir 3. The injection hole does not need to be deep enough to reach the water vein to be pumped, but it should be deep enough. Infiltration capacity is sufficient. To ensure infiltration capacity, the depth to the permeable layer, In addition, multiple infiltration pipes can be buried through the reduction hole. The size of the reduction hole is the same as that of the multiple sprinkler pipes. By installing the hole, a large diameter is not required. The hole can be installed underground and the surface area of ​​the site can be reduced. does not restrict the use of

[0033] In the event of a major earthquake or other disaster, the water pump can be driven by independent solar power generation. It is possible to pump up groundwater and use outlets to supply water to nearby residents. In addition, solar power can also be supplied. The heating system is an independent disaster water supply system that stops heat exchange in the event of a water outage and supplies water to nearby areas. It also functions as a system. [Explanation of symbols]

[0034] 1: Pumping well 11: Water pump 2: Groundwater infiltration means 21: Permeable asphalt pavement 22: Water pipe 23: Water flow 24, 24b: Water diffusion 25, 25b: Water sprinkler 26: Reduction hole 26b: Reduction tube 3: Reservoir 31: Reservoir water 32: Island 33: Pond wall 33a: Insulation layer 33b: Concrete 34, 34b: Water outlet 35:Water tray 36: Water bowl 37: Cold water outlet 38: Receiver net 4: Solar power panels 5: Heat exchanger 51: Heat collection tube 6: Heating and cooling equipment in buildings 61: Building 62:Floor 63: Ceiling 64: Window 7: Radiant heating and cooling partition panel A (heat dissipation panel A) 7a, 7b: Surface 72: Piping 72a, 72b: Hot and cold water pipes 76: Insulation material 8: Radiant heating and cooling partition panel B (heat dissipation panel B) 8a: surface 81: Concrete 82: Hot and cold water pipe 82a: Entrance 82b:Exit 83: Rib 83a: Rib Head 83b: Rib leg 84: Space between ribs 85: Air flow path 86: Welded wire mesh 10: Geothermal and solar powered heating and cooling system P: Pump W: Water vein R1: Room R2: Room

Claims

1. The facility is equipped with a well for pumping groundwater, groundwater infiltration means (wells, infiltration basins, permeable pavement), a reservoir, solar panels, a heat exchanger, and heating and cooling equipment within the building. The reservoir is a pond at least a part of which is exposed to the ground and has a water outlet provided above ground; The building's heating and cooling system is equipped with radiant heating and cooling partition panels. A geothermal and solar power heating and cooling system that uses electricity generated by solar panels to drive a pump to draw up groundwater and supply it to a reservoir, uses a heat exchanger to convert the heat of the water in the reservoir into heat for heating and cooling in buildings, and returns any water that overflows from the reservoir back into the ground.

2. The geothermal and solar heating and cooling system according to claim 1, characterized in that the partition panel for radiant heating and cooling has piping for carrying a heat exchangeable medium buried inside the PC panel that constitutes the panel body, and the surface of the PC panel has irregularities, with the spaces between the irregularities serving as air flow paths.

3. 3. A geothermal and solar heating and cooling system according to claim 1 or 2, characterized in that the groundwater pumping well draws water from a water vein having a groundwater flow rate equal to or greater than the regulated amount of water that can be pumped.

4. 4. A geothermal energy and solar power heating and cooling system according to claim 1, wherein the reservoir has a water outlet located at a position accessible from an external road.

5. 5. The geothermal energy and solar power heating and cooling system according to claim 1, wherein the reservoir is provided adjacent to a room on the first floor.

6. A geothermal energy and solar power heating and cooling system as described in any one of claims 1 to 5, characterized in that the amount of water intake is controlled to be equal to or less than the regulated amount of water to be pumped by integrating the operating time of the water pump.

7. The geothermal heat and solar light heating and cooling system according to any one of claims 1 to 6 is an independent disaster water supply system, characterized in that heat exchange is stopped during a water outage and water is supplied to a neighboring area. Tem.

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