JP5951263B2 - Plate for underground water channel formation - Google Patents

Description

  The present invention supplies water that falls within a certain temperature zone (10 ° C. to 20 ° C.) close to the underground temperature (about 15 ° C.) to the underground water storage space used as the water heat source of the underground heat source heat pump system. The present invention relates to a plate for forming an underground water channel that can be used by being buried in the ground.

  Conventionally, a geothermal heat source heat pump system that uses geothermal heat as a heat source of a heat pump is known. Focusing on the fact that the underground heat source heat pump system maintains the underground temperature at around 15 ° C regardless of the season, the underground heat is used as a cold heat source (heat sink) in summer, and the underground heat is heated in winter. As a heat source, it is used as a heat source for air conditioning, hot water supply, snow melting, etc., respectively. In particular, in recent years, geothermal heat source heat pump systems have attracted attention as a renewable energy utilization technology that has a low carbon dioxide emission and a very high power-saving effect, along with increasing awareness of environmental problems.

  However, since the underground heat source heat pump system performs heat exchange in the ground, it is necessary to embed a heat exchanger or the like in the ground, and it is necessary to secure a space for burying the heat exchanger or the like. There was a problem. The need for an air conditioning heat source is mainly in densely populated areas such as urban areas where land prices are high, so securing this space has become a problem, particularly in terms of cost effectiveness. ing.

  In this case, in order to solve the problem of land prices, the heat exchanger is a straight U-shaped pipe, which is buried deep in the ground to ensure the function as a heat exchanger and buried. Although a method for minimizing the space required to do this is also conceivable, it is recognized that this method is also problematic from the viewpoint of cost effectiveness because it takes a huge amount of money to dig deep into the ground.

  Under such circumstances, the inventor of the present application has made extensive studies on a method that can solve the problem of cost effectiveness and can be expected to effectively use underground heat. As a result, the inventor of the present application solves the above problems by placing a plate (a plate for forming a groundwater channel) that artificially forms a groundwater channel on the foundation ground surface of a building or the like. The inventor has obtained knowledge that the present invention can be performed, and has led to the creation of the present invention.

  In addition, when filing the present invention, the inventors of the present application and the applicant investigated past patent documents and the like, and found the following documents regarding the technology using the underground heat source. It was not possible to find a patent document detailing such technical ideas.

JP-A-2005-49016 JP 2007-10275 A JP 2007-64549 A

  The present invention supplies water that falls within a certain temperature zone (10 ° C. to 20 ° C.) close to the underground temperature (about 15 ° C.) to the underground water storage space used as the water heat source of the underground heat source heat pump system. An object of the present invention is to provide a plate for forming an underground water channel that can be used by being buried in the ground.

  As a means therefor, the underground water channel forming plate according to the present invention has a water channel for flowing water from one end of the plate to the other end on the upper surface of the plate, and water flows through the water channel. In the meantime, heat exchange between the flowing water and the ground around the plate allows water that falls within a certain temperature zone to flow out of the water channel of the plate. It is a feature.

  Moreover, the plate for groundwater channel formation according to the present invention is constituted by a corrugated plate having a concave portion and a convex portion, and the concave portion allows water to flow from one end of the plate to the other end on the upper surface of the plate. As the water flows through the water channel, heat exchange between the flowing water and the ground around the plate causes water contained within a certain temperature zone to flow from the water channel of the plate. It is also characterized by being able to put out.

  According to the present invention, water that fits in a constant temperature zone (10 ° C. to 20 ° C.) close to the underground temperature (about 15 ° C.) in the underground water storage space used as the water heat source of the underground heat source heat pump system. It is possible to provide a plate for forming an underground water channel that is used while being buried in the ground.

  Further, in the present invention, since the plate for forming a groundwater channel is placed on the foundation ground surface of a building such as a building, according to the present invention, in order to embed a heat exchanger or the like separately, There is no need to increase the construction process. Therefore, a great advantage can be brought about in terms of cost reduction and shortening of the construction period.

1 is a schematic diagram 1 of a ground source heat pump system 1. Schematic 2 of the underground heat source heat pump system 1.

  Hereinafter, the form for implementing the plate for groundwater channel formation concerning the present invention is explained. As shown in FIG. 1, the plate 1 for forming a groundwater channel is constituted by a corrugated plate having a concave portion and a convex portion, and is laid on a foundation ground surface that has appeared by excavation work, Buried.

  The plate 1 is provided with a water inlet 2 at one end and a water outlet 3 at the other end. And as shown in FIG. 1 and FIG. 2, the end of the water inlet 2 is an underground natural water that can store natural water such as rainwater through a water reservoir 4 and a water distribution pipe 5. It is connected to the aquarium 6. Thereby, the plate 1 is configured to receive the water in the underground natural water tank 6 at one end and to flow into the concave portion on the upper surface thereof.

  Further, the water discharge channel 3 is connected to an underground water storage space 7 in which water used as a water heat source can be stored. As a result, the concave portion of the upper surface of the plate 1 becomes a water channel for flowing water from one end of the plate 1 to the other end, and the water received from the water intake channel 2 can flow out into the underground water storage space 7. It can be done.

  In these drawings, reference numeral 8 denotes a pipe that functions as a heat exchanger, and is connected to a ground heat pump not shown here. Thereby, in this embodiment, the water stored in the underground water storage space 7 can be utilized as a water heat source of the heat pump system. The pipe 8 shown here is a straight U-shaped pipe. However, in order to further improve the heat exchange efficiency, the pipe 8 in the underground water storage space 7 may have a spiral shape or the like. good.

  In this embodiment, the water in the underground water storage space 7 is discharged to the ground by appropriately sucking and using the water in the underground water storage space 7 by a pump or the like not shown here. Therefore, the water flow on the upper surface of the plate 1 naturally occurs.

  In addition, in the above embodiment, the underground natural water tank 6 is connected with a pipe line (not shown), and the rainwater poured on the roof of a building such as a building is passed through the pipe line. It is configured to be collected.

  Since the present invention is configured as described above, heat exchange is performed between the flowing water and the ground around the plate 1 while the water flows on the upper surface of the plate 1. Water that falls within a certain temperature range (10 ° C. to 20 ° C.) close to the underground temperature (about 15 ° C.) can be supplied to the space 7. Therefore, since the water stored in the underground water storage space 7 is always within a certain temperature range, this water can be used as a water heat source of the underground heat source heat pump system.

  Further, according to the present invention, heat exchange is performed by placing the plate 1 for forming a groundwater channel on the foundation ground surface of a building such as a building. A process for embedding a heat exchanger or the like is not required, and a great advantage can be brought about in terms of cost reduction and shortening the work period.

  Furthermore, in the present invention, underground water is used as a heat source of the heat pump system, but the water is artificially collected natural water such as rainwater, and is derived from a conventional underground water vein. Not what you want. Therefore, underground water can be used as a heat source without contaminating existing groundwater veins or causing a decrease in flow rate.

  The present invention is naturally not limited to the underground water channel forming plate 1 described in the above embodiment. Further, the scope of the present invention includes those in which the technical idea of the present invention is embodied.

1: Plate,
2: Inlet channel,
3: Drainage channel,
4: Puddle,
5: Water pipe,
6: Underground natural water tank,
7: Underground water storage space,
8: Pipe,

Claims (2)

An underground heat source heat pump system having a plate for forming an underground water channel that is buried and used in the ground, wherein the plate has a water channel formed on the upper surface for flowing water from one end to the other end. As the water flows through the water channel, heat is exchanged between the flowing water and the ground around the plate, so that the water can be used as a water heat source for the underground heat source heat pump system. A ground heat source heat pump system characterized in that water contained in the water flows out of the water channel . An underground heat source heat pump system having a plate for forming an underground water channel that is buried and used in the ground, wherein the plate is constituted by a corrugated plate having a concave portion and a convex portion, and the concave portion is the plate. In the upper surface of the plate, it becomes a water channel for flowing water from one end of the plate to the other end, and heat is exchanged between the flowing water and the ground around the plate while water flows through the water channel. The underground heat source heat pump system is characterized in that water that falls within a certain temperature zone used as a water heat source for the underground heat source heat pump system flows out of the water channel .

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