JP5107169B2 - Temperature control system and construction method of temperature control system - Google Patents

Description

  The present invention relates to a temperature control system that adjusts the temperature using a pile buried in the ground, and a method for constructing the temperature control system.

The underground temperature is almost constant throughout the year. That is, the temperature in the ground is lower than the temperature in summer, and the temperature in the ground is higher than the temperature in winter. Then, the air conditioning system using such a geothermal heat is known (for example, patent document 1).
Patent Document 1 describes a technique in which a liquid is circulated through a pipe between an underground pipe buried in the ground and a ground heat exchanger, and a space in the building is cooled and heated by heat obtained from the heat exchanger.

JP 2007-64549 A

In general, the underground temperature is a substantially constant temperature of about 15 to 16 [deg.] C. However, in order to use this underground heat as heating, it is necessary to further heat because the temperature is low.
Patent Document 1 describes that heat is obtained from a heat exchanger using a refrigerant when it is desired to heat above the underground temperature or to cool below the underground temperature. Since the liquid heated by the underground heat (cooled) is carried, the heat insulation (cold insulation) effect becomes low. That is, there is a problem that the energy used in the heat exchanger on the ground increases and the energy efficiency of the air conditioning system decreases.

  The objective of this invention is providing the construction method of the temperature control system which can aim at energy saving, and a temperature control system.

  The temperature control system according to the present invention includes a pile buried in the ground, a storage chamber closed inside the pile, a storage tank capable of storing liquid, and a storage tank installed inside the storage tank. A heating device that heats the liquid stored in the liquid tank, a circulating liquid pipe that circulates the liquid stored in the liquid storage tank between the liquid storage tank and a temperature control target, and the circulating liquid pipe A circulating fluid pump that is provided in the middle and adjusts the amount of the liquid that is circulated between the liquid storage tank and the temperature control object, and wherein the circulating fluid piping is along the outer peripheral surface of the pile. And a circulating fluid heat exchanging portion wound spirally.

Since the pile is buried in the ground, the air in the warming chamber formed by being blocked inside the pile maintains a stable temperature by heat exchange with the ground. For example, a temperature higher than the outside air temperature is maintained in winter, and a temperature lower than the outside air temperature is maintained in summer.
A liquid such as water is stored in the liquid storage tank and heated by a heating device. As the liquid stored in the liquid storage tank, a chemical liquid having excellent fluidity and low specific heat can be used in addition to water.

The circulating fluid pipe circulates the liquid heated in the reservoir tank by the circulating fluid pump between the reservoir tank and the temperature control object. The temperature adjustment object can be warmed (cooled) by circulating the liquid in the liquid storage tank heated by the heating device through the circulating fluid piping extending to the temperature adjustment object. Can be obtained.
Here, examples of the temperature control target include a building built on the ground, a road surface such as a road and a parking lot, and the like, but are not particularly limited as long as the circulating fluid piping can be disposed.

And a part of circulating fluid piping is wound spirally along the outer periphery of the pile embed | buried under the ground. The wound portion is a circulating fluid heat exchanging section, and the liquid in the circulating fluid piping is sent from the storage tank to the temperature adjustment target after flowing through the circulating fluid heat exchanging section.
In addition, it is preferable that the heat exchange part for circulating fluid is spirally wound from the ground surface side to the inside of the ground along the outer peripheral surface of the pile. It can be heated, and the heat retention effect is further improved.

In winter, the temperature in the warming room is maintained at a higher temperature than the outside temperature (stable at a constant temperature). The liquid flowing through the circulating fluid pipe is heat-exchanged in the circulating fluid heat exchange section, and is maintained at a temperature equivalent to that of the warming room or the ground.
And when heating the liquid inside a liquid storage tank with a heating apparatus, since what is necessary is just to warm the air of temperature higher than external temperature, it can raise to desired temperature with less electric power.
In addition, the circulating fluid heat exchanger can not only heat the warming room from the outside, but can also heat the surrounding area including the soil outside the piles, etc., thus further improving the warming effect. be able to.

  Therefore, even when the temperature control system is not operated, the temperature decrease in the thermal storage chamber and the liquid storage tank is small due to this heat retention effect, and when the temperature control system is operated again, the power supply to the heating device is reduced. And further energy saving can be achieved.

In the temperature control system of the present invention, an air pipe that circulates air inside the warming chamber, and a blower pump that is provided in the middle of the air pipe and adjusts the amount of air to be circulated, air piping, that has an air heat exchange portion which is wound spirally along the outer peripheral surface of the pile.

In this invention, the air in the greenhouse is sucked by the blower pump, circulates through the inside of the air pipe, and is discharged to the internal space of the building. Therefore, the temperature of the internal space of the building can be adjusted by directly blowing the air in the temperature-controlled room maintaining a stable temperature as described above. For example, warm air can be blown in winter, and cold air can be blown in summer.
And since air piping is provided with the air heat exchange part wound along the outer peripheral surface of a pile, not only the inside of a heat retention room but heat insulation by the air which distribute | circulates the inside of this air heat exchange part. The surrounding area including the soil outside the room is heated (insulated), and the heat retaining effect can be further improved. That is, energy saving can be achieved.

  In the temperature control system of the present invention, it is preferable that the liquid storage tank is installed in the inside of the greenhouse.

  In this invention, since the liquid storage tank is installed in the thermal insulation room formed inside the pile buried in the ground, the thermal insulation effect of the liquid storage tank is high. Moreover, since it is arrange | positioned in the ground including the circulating fluid piping connected to a liquid storage tank, a heat retention effect is higher and energy saving can be achieved.

  In the temperature control system of the present invention, it is preferable that the air pipe has a blower that blows air inside the temperature-controlled room to an internal space of the temperature control object.

  In this invention, it is possible to blow the air inside the temperature-controlled room directly into the internal space of the temperature control object. The temperature of the air inside the warming room is maintained higher than the outside air temperature in winter and lower than the outside air temperature in summer, so that comfortable air conditioning can be provided.

  In the temperature control system of the present invention, the temperature control object is a building, and is installed inside the building, and heat is exchanged between the supplied liquid and air, thereby cooling and heating the inside of the building. It is preferable that a cooling / heating device is provided, and the circulating fluid pipe is connected to the cooling / heating device.

In the present invention, the temperature inside the building is adjusted. For this purpose, an air conditioner is installed inside the building, and a circulating fluid pipe is connected to the air conditioner.
As the air conditioner, a fan convector or the like that can blow warm air or cold air by exchanging heat with air inside the building using liquid (hot water, cold water) supplied to the air conditioner can be used. .
Hot water (cold water) that has circulated through the circulating fluid piping is taken into the air conditioning unit, and warm air (cold air) is blown by the air conditioning unit. Thereby, the air conditioning effect is acquired inside a building. The circulating fluid flows from the cooling / heating device through the circulating fluid piping, returns to the liquid storage tank, is heated again by the heating device, and is circulated. In summer, the heating device is not used, and the liquid in the liquid storage tank is kept at the same temperature as the underground temperature (a temperature lower than the outside air temperature).
Therefore, the inside of the building can be effectively cooled and heated, and the above-described energy saving can be achieved.

  In the temperature control system of the present invention, it is preferable that the temperature control object is a ground surface.

In this invention, temperature control is performed on the ground surface such as a road, a parking lot, or a field.
Circulating fluid piping is buried in the ground, and the hot water that has circulated through the circulating fluid piping can prevent the ground surface from freezing or melt snow. That is, it can be used as a snow melting system. In addition, by embedding in the ground such as fields, it is possible to maintain a temperature suitable for crops, and it can be used effectively for greenhouse cultivation and the like.
Accordingly, the ground surface can be effectively heated and the above-described energy saving can be achieved.

  The temperature control system according to the present invention includes a pile buried in the ground, a storage chamber closed inside the pile, a storage tank capable of storing liquid, and a storage tank installed inside the storage tank. A heating device for heating the liquid stored in the liquid tank, a circulating liquid pipe for circulating the liquid stored in the liquid tank, and an amount of the circulating liquid provided in the middle of the circulating liquid pipe A circulating fluid pump, an air pipe that circulates the air in the thermal storage room between the thermal storage room and the temperature control object, and the air storage room and the temperature control object provided in the middle of the air pipe. A circulating pump that adjusts the amount of air to be circulated between, and the circulating fluid pipe includes a circulating fluid heat exchange section that is spirally wound along the outer peripheral surface of the pile. The air pipe is spiral along the outer peripheral surface of the pile. Characterized in that it comprises a heat exchange unit for wound air.

In this invention, since the pile is embed | buried under the ground, the air in the warm chamber formed by being blocked | closed inside the pile maintains the stable temperature by heat exchange with the ground. For example, a temperature higher than the outside air temperature is maintained in winter, and a temperature lower than the outside air temperature is maintained in summer.
A liquid such as water is stored in the liquid storage tank and heated by a heating device. As the liquid stored in the liquid storage tank, a chemical liquid having excellent fluidity and low specific heat can be used in addition to water.

  Since the circulating fluid pipe has a circulating fluid heat exchanging portion spirally wound along the outer peripheral surface of the pile main body portion, the circulating fluid pipe has a liquid storage tank heated by a heating device by a circulating fluid pump. The liquid flows from the liquid storage tank through the inside of the heat exchanger for the circulating liquid and returns to the liquid storage tank again. Accordingly, since the air heat exchange unit is provided by the liquid flowing through the inside of the circulating fluid heat exchange unit, the air flowing through the air heat exchange unit is used not only for the inside of the heat storage room but also the heat storage room. The entire surrounding area including the soil outside and the like is heated (insulated), and the heat retaining effect can be further improved. That is, energy saving can be achieved.

The piping for air circulates the air in the temperature-controlled room between the temperature-controlled room and the temperature control object. The air in the greenhouse is sucked by the blower pump, flows through the air pipe, and is discharged into the internal space of the building. Therefore, the temperature of the internal space of the building can be adjusted by directly blowing the air in the temperature-controlled room maintaining a stable temperature as described above. For example, warm air can be blown in winter, and cold air can be blown in summer.
And since air piping is provided with the air heat exchange part wound along the outer peripheral surface of a pile, not only the inside of a heat retention room but heat insulation by the air which distribute | circulates the inside of this air heat exchange part. The surrounding area including the soil outside the room is heated (insulated), and the heat retaining effect can be further improved. That is, energy saving can be achieved.

In winter, the temperature in the warming chamber is maintained at a temperature higher than the outside temperature (stable at a constant temperature). When heating the liquid inside the storage tank with a heating device, Since air having a temperature higher than the air temperature may be heated, the temperature can be increased to a desired temperature with less power.
In addition, the air heat exchanger and the circulating fluid heat exchanger can not only heat the warming room from the outside, but can also heat the surrounding area including the soil outside the pile and the like. The heat retention effect can be improved.

  Therefore, even when the temperature control system is not operated, the temperature decrease in the thermal storage chamber and the liquid storage tank is small due to this heat retention effect, and when the temperature control system is operated again, the power supply to the heating device is reduced. And further energy saving can be achieved.

  The construction method of the temperature control system of the present invention is a construction method of the temperature control system for constructing the above-described temperature control system, the investigation step for investigating the maximum depth at which the pile can be embedded in the ground, and the maximum depth A first excavation step of excavating to the excavation depth located at a position more than the distance between the tip of the pile and the lowermost end of the heat exchanger for circulating fluid from the ground surface to the ground surface, An outer pipe having a diameter larger than the diameter of the pile is inserted into the excavation hole, the pile having the heat exchanger for the circulating fluid is inserted on the inner circumference side of the outer pipe, and the pile is excavated to the maximum depth. Performing a second excavation step, and an embedding step of burying the pile by pulling out the outer peripheral pipe from the excavation hole.

In this invention, first, an investigation process for investigating the maximum excavable depth is performed. In the investigation process, the depth at which excavation can be performed can be investigated by a commonly used method such as boring. The maximum depth here is the vertical distance from the ground surface to the hard ground that cannot be excavated.
And based on the maximum depth obtained by the investigation process, the length of the pile to bury is adjusted and a 1st excavation process is implemented. In the first excavation process, excavation holes are formed by excavating to a position shallower than the maximum depth. Specifically, the excavation depth is a position that is more than the distance between the tip of the pile and the lowest end of the heat exchanger for circulating fluid from the maximum depth toward the ground surface. This excavation hole is a hole for inserting a peripheral pipe pile having a diameter larger than that of the pile used in the temperature control system of the present invention. The outer pipe pile is temporarily inserted so that the pile used in the temperature control system of the present invention does not come into contact with the surrounding soil, both ends are opened, and the inside can be inserted. In the second excavation step, a pile having a heat exchange part for circulating fluid is inserted on the inner circumference side of the outer pipe pile, and further excavated by the pile construction part provided at the tip of the pile, and excavated to the maximum depth. . And in an embedding process, an outer periphery pipe pile is pulled out and a pile is completely embed | buried. In addition, when a pile has a heat exchange part for air, a pile is inserted in the state which provided the heat exchange part for air.

  In this way, by inserting the pile on the inner peripheral side of the outer peripheral pipe pile, the pile without damaging the heat exchanger for circulating fluid (and the heat exchanger for air) wound along the outer periphery of the pile. Can be reliably buried. In addition, since the excavation depth is a position that is more than the distance between the tip of the pile and the lowermost end of the heat exchanger for circulating fluid from the maximum depth toward the ground surface, it depends on the pile main body in the second excavation process. When excavating, there is no risk of damaging the circulating fluid heat exchanger wound around the outer periphery of the pile body. Therefore, the temperature control system of the present invention can be reliably constructed.

Hereinafter, an embodiment according to a temperature control system of the present invention will be described with reference to the drawings.
[Configuration of temperature control system]
FIG. 1 is a schematic diagram showing a schematic configuration of a temperature control system of the present invention. FIG. 2 is a side view with a part cut away showing a schematic configuration of the upper end of the pile.

In FIG. 1, a temperature control system 100 is provided around a building such as a vinyl house or a house, and adjusts the temperature of the internal space of the building and the temperature of the ground surface.
The greenhouse 200 is a skeleton formed by a plurality of pipes, and a vinyl sheet is stretched over the skeleton. The greenhouse 200 is provided with a field portion 210 where soil is stored on the surface of the interior of the greenhouse 200 and crops are grown.

  The temperature control system 100 uses piles embedded in the ground, and has a steel pipe pile main body 300 formed in a substantially cylindrical shape, and a liquid circulation device 400 provided inside and outside the pile main body 300. The air circulation device 500 that circulates the air inside the pile main body 300, the pile construction portion 600 provided at the other axial end of the pile main body 300, and the vertical that becomes one end of the pile main body 300 in the axial direction And a concrete pipe 700 cast and formed at the upper end in the direction.

The pile body 300 is a cylindrical steel pipe having a diameter of 190 mm to 268 mm, a length dimension of 4 m to 10 m, and a wall thickness dimension of 4.5 mm to 5.8 mm, and the axial direction is substantially vertical. It is buried in the ground along the line. The size of the pile body 300 is adjusted according to the scale of the temperature control object. In this embodiment, the pile main body 300 has a diameter of 190.7 mm and a length dimension of a semi-cylindrical greenhouse 200 having a length of 50 m and a width of 4 m. A steel pipe having a thickness of 7 m and a thickness of 5 mm is used.
As shown in FIG. 1 and FIG. 2, the pile main body 300 forms the outer periphery of a substantially cylindrical pile, and is an outer peripheral wall 310 that separates from the outside, and one end in the axial direction of the pile main body 300. A substantially disc-shaped upper end closing portion 320 provided on the upper end side, and a substantially disc-shaped lower end closing portion 330 provided by welding or the like on the lower end side which is the other end side in the axial direction are provided. In addition, a space formed by being substantially closed by the outer peripheral wall portion 310, the upper end closing portion 320, and the lower end closing portion 330 is a warming chamber 340. Here, the substantially closed state may be a state in which earth and sand cannot be circulated when the pile main body 300 is embedded in the ground, for example.

The outer peripheral wall portion 310 is a substantially cylindrical steel pipe that forms the outer shape of the pile main body portion 300. The outer peripheral wall 310 has a first through hole 311, a second through hole 312, and a third through hole 313 that penetrate the inner peripheral surface and the outer peripheral surface. The first through-hole 311 and the second through-hole 312 are for connecting a circulating fluid pipe 430 and an air pipe 510 to be described later, and the third through-hole 313 has an air circulation device 500 to be described later. The air heat exchange section 512 is inserted.
The upper end closing portion 320 is a substantially disc-shaped steel plate having a thickness of about 3 cm, and is placed or fitted on the upper end edge of the outer peripheral wall portion 310. In order to enhance the heat insulation effect of the heat insulation room 340, a heat insulation material such as polystyrene foam is attached to the heat insulation room 340 side of the upper end blocking portion 320 formed in a substantially disc shape. As the upper end closing portion 320, a disk-shaped concrete plate may be placed and used.
Moreover, the heat insulation effect can also be acquired by using a material with low heat conductivity for the upper end obstruction | occlusion part 320. FIG.
The upper end closing part 320 is provided with a through hole for conducting various wirings and pipes. Specifically, a wiring through hole 321 and a piping through hole 322 are provided.

The lower end closing part 330 is a substantially disk-shaped steel plate and is welded to the lower end edge of the outer peripheral wall part 310. A heat insulating material is affixed on the side of the heat retention room 340 of the lower end closing part 330.
The warm room 340 is an internal space of the pile main body 300, is a space formed by the outer peripheral wall 310, the upper end closing part 320, and the lower end closing part 330, and is substantially closed.

  The liquid circulation device 400 includes a liquid storage tank 410 installed in a hollow space in the hot storage chamber 340, a heating device 420 that heats the liquid stored in the liquid storage tank 410, and the liquid stored in the liquid storage tank 410. Circulating fluid piping 430 that circulates between the fluid tank 410 and the ground of the field portion 210 of the greenhouse 200, circulating fluid pump 440 that adjusts the amount of liquid that circulates inside the circulating fluid piping 430, and circulating fluid piping. And a fan convector 450 as an air-conditioning apparatus provided in the middle of 430 for air-conditioning the interior of the greenhouse 200.

The liquid storage tank 410 is closed at one end of a substantially cylindrical steel pipe having a length of about 1 m, and has a tank main body 411 capable of storing liquid therein, and a substantially cylindrical steel pipe having a length of about 0.1 m. One end portion is closed, and a tank lid portion 412 that can be screwed into the other end portion of the tank main body portion 411 is provided. That is, a groove that can be screwed is formed on the opening side of the tank main body portion 411 and the tank lid portion 412, and can be attached and detached by screwing each other.
The sum of the tank body 411 and the tank lid 412 is a size of the diameter of 110 mm to 150 mm, the length of 0.5 m to 2 m, and the wall thickness of 2 mm to 5 mm. Is preferred. These dimensions are adjusted according to the scale of an object to be temperature controlled (here, the greenhouse 200). In this embodiment, the diameter is 114.3 mm, the length dimension is 1 m, and the wall thickness dimension is 3 mm. In addition, the outer surfaces of the tank body 411 and the tank lid 412 are plated.
The liquid storage tank 410 is provided in the hollow of the hot storage chamber 340. For example, at least two protrusions (not shown) protruding outward in the vertical direction are formed on the outer peripheral surface of the liquid storage tank 410. The ends of the protrusions are welded and fixed to the inner peripheral surface of the pile body 300.
On the lower end side of the tank main body portion 411, a discharge port 414 for discharging the stored liquid penetrating from the inner peripheral side of the wall portion 413 forming the outer periphery of the tank main body portion 411 to the outer peripheral side is formed. A protrusion 417 for attaching a heating device 420 to be described later is provided.
In addition, a water supply port 415 through which the circulating liquid pipe 430 is inserted and inserted into the upper surface portion of the tank lid portion 412 from the inner peripheral side to the outer peripheral side of the upper surface portion and the wiring of the heating device 420 is provided. Through-holes 416 for conducting the like.
In addition, liquid is stored in the liquid storage tank 410, and liquid is supplied from an auxiliary tank (not shown) as necessary, so that the amount of liquid in the liquid storage tank 410 can be adjusted. In the present embodiment, water is used as the liquid stored in the liquid storage tank 410.

  The heating device 420 is, for example, a generally used electric heater. The electric heater includes a heating wire 421 immersed in the liquid storage in the liquid storage tank 410, a wiring 422 for supplying power to the heating wire 421, and a power supply unit 423. The heating wire 421 engages and is fixed to a protrusion 417 formed on the inner peripheral side of the liquid storage tank 410 and is immersed in the liquid storage. One end of the wiring 422 is connected to the power supply unit 423 installed in the concrete pipe 700, and is inserted into the wiring through hole 321 of the upper end closing part 320 and the through hole 416 of the liquid storage tank 410. It connects with the upper end part of the heating wire 421 arrange | positioned inside. The wiring 422 supplies power supplied from the power supply unit 423 to the heating wire. The heating device 420 is not limited to this as long as it can be heated to 120 ° C. And it adjusts suitably so that the inside of the greenhouse 200 may become desired temperature.

  The circulating fluid pipe 430 is connected to the connecting circulating portion 431 connecting the discharge port 414 of the liquid storage tank 410 to the outer peripheral surface 300A of the outer peripheral wall portion 310, and the connecting circulating portion 431, and spirals along the outer peripheral surface 300A. A circulating fluid heat exchanging unit 432 that is wound, a first circulating unit 433 that is connected to the circulating fluid heat exchanging unit 432 and connects the circulating fluid heat exchanging unit 432 to the circulating fluid pump 440, and circulation. A second feeding / circulation unit 434 connecting the liquid pump 440 to the fan con vector 450 installed in the greenhouse 200, and a third extending from the fan con vector 450 to the ground portion 210 of the greenhouse 200 in the ground. The feed circulation unit 435, the main circulation unit 436 stretched in a meandering shape in the field 210, and the main circulation unit 436 are connected to the water supply port 415 of the liquid storage tank 410. It has a return circulation unit 437, a. The connection circulation unit 431, the circulating fluid heat exchange unit 432, the first feeding / circulation unit 433, and the second feeding / circulation unit 434 are continuously formed, and the third feeding / circulation unit 435 is connected via the fan convector 450. The main circulation part 436 and the return circulation part 437 are continuously formed. The inside of these continuously formed pipes communicates and can circulate the liquid.

  The connection circulation part 431 is a tubular object that can be inserted into the first through hole 311 formed in the outer peripheral wall part 310. The connection circulation part 431 has one end connected to the discharge port 414 of the liquid storage tank 410, fitted into the first through hole 311 from the discharge port 414, and the other end extending to the outside of the pile main body 300. The pile main body 300 is arranged in a state. In addition, between the inner periphery of the 1st through-hole 311 and the outer peripheral surface of the connection circulation part 431, it fills with the fillers which are not illustrated, such as a sealing material, for example, and is obstruct | occluded. As the connection circulation part 431, a heat-resistant material that can withstand heat of about 120 ° C., such as a copper pipe, is used.

The circulating fluid heat exchanging part 432 is a pipe whose one end communicates with the connection circulating part 431 and is spirally wound around the outer peripheral surface 300A from the upper part in the axial direction of the pile body part 300 to the lower part. . The position where the circulating fluid heat exchanging part 432 is provided on the outer peripheral surface 300A of the pile main body 300 may be adjusted as appropriate according to the depth of embedding at the site, but is wound within a range of about 2 m of the pile main body 300. Is preferred. In the present embodiment, for example, one end of the circulating fluid heat exchanging part 432 is located at a position 3 m from the upper end of the pile main body 300, and the circulating fluid heat exchanging part 432 is located at a position 1 m from the lower end of the pile main body 300. The other end is located and is wound around the outer peripheral surface 300A of the pile main body 300 over about 2 m.
In addition, the inclination angle and the interval between the pipes when the circulating fluid heat exchanging part 432 is wound around the outer peripheral surface 300A of the pile main body part 300 are not particularly limited and can be adjusted as appropriate.

The circulating fluid heat exchanging section 432 is made of a material having high heat resistance and high heat conductivity, such as a copper pipe.
Such a circulating fluid heat exchanging part 432 keeps the warming room 340 which is the internal space of the pile body part 300 from the outside, and integrally surrounds the periphery of the pile body part 300 including the soil outside the pile body part 300. Warm.

  One end of the first feeding / circulation unit 433 is connected to and connected to the circulating fluid heat exchange unit 432, extends along the outer peripheral surface 300 </ b> A of the pile body 300, and the first through hole 701 of the concrete pipe 700. And is connected to the circulating fluid pump 440. The first sending and circulating unit 433 is formed of a copper pipe or the like.

  Here, the circulating fluid pump 440 is provided inside the concrete pipe 700. The circulating fluid pump 440 discharges the liquid from the liquid storage tank 410 and circulates it in the circulating fluid piping 430.

The second feeding / circulation part 434 is inserted into the second through hole 702 of the concrete pipe 700 from the circulating fluid pump 440, and the other end passes through the ground to the fan convector 450 installed in the greenhouse 200. Connecting. For the second circulation part 434, a pipe made of crosslinked polyethylene having flexibility and heat resistance is preferably used.
The third circulation section 435 has one end connected to the fan con vector 450 and the other end extending through the ground and into the ground of the field section 210 of the greenhouse 200. The third feeding / circulation part 435 is preferably a crosslinked polyethylene pipe having flexibility and heat resistance.

  One end of the circulation unit 436 is connected to the third feeding / circulation unit 435 and is embedded in a serpentine shape in the field 210 of the greenhouse 200. The circulation part 436 is preferably evenly embedded in the area of the field part 210. For example, when the field part 210 is 5 m × 1 m and the pipe diameter of the circulation part 436 is 1.0 cm, the circulation part 436 is approximately 20 cm apart. It is preferable to arrange. As this circulation part 436, the plastic piping for agriculture generally used can be used.

  One end of the return circulation part 437 is connected to the main circulation part 436 and is formed in the third through hole 703 and the upper end closing part 320 formed in the outer wall part of the concrete pipe 700 from the underground of the greenhouse 200. It is inserted into the pipe conduction hole 322 and connected to the water supply port 415 formed in the tank lid portion 412 of the liquid storage tank 410. Examples of the return circulation unit 437 include use of a crosslinked polyethylene pipe, a hard plastic pipe, a pressure hose, or the like. In addition, between the inner periphery of the piping conduction hole 322 and the outer peripheral surface of the return circulation portion 437, for example, a filler (not shown) such as a sealing material is filled and closed.

  Such a circulating fluid pipe 430 circulates the liquid heated (cooled) in the liquid storage tank 410 and extends to the field portion 210 via the fan convector 450. Such circulating fluid piping 430 is preferably formed by piping having a diameter of 0.8 mm or more. If the diameter is less than 0.8 mm, the circulation efficiency may deteriorate.

  The fan con vector 450 is a device that includes a substantially box-shaped housing 451 that is appropriately installed inside the greenhouse 200 and blows warm air using the liquid circulated by the circulating liquid piping 430. The fan con vector 450 has a liquid inlet part 452 and a liquid outlet part 453. The liquid inlet part 452 is connected to the second liquid supply / circulation part 434, and the liquid outlet part 453 is connected to the third liquid supply / circulation part 435. Is connected.

In the housing 451, for example, a blower (not shown) such as a blower, a fan, or a pump is disposed. This blower is driven by the supply of electric power from a power supply unit (not shown) disposed in the housing 451, and generates hot air (or cold air) generated by the thermal energy of the liquid that has entered the fan convector 450 in the room. An air blowing operation for exhausting, that is, blowing air is performed.
A filter is preferably provided in the housing 451. As the filter, a woven fabric, a non-woven fabric, a porous material, or the like that can ventilate the air that is ventilated into and out of the room through the fan convector 450 by driving the blower and that can capture dust in the air can be used. And the filter is arrange | positioned in the housing | casing 451 so that attachment or detachment is possible. In other words, the filter is arranged so that it can be removed and replaced or washed and reattached.
In addition, as the fan convector 450, for example, a configuration provided with a dehumidifying agent, a liquid removing unit such as a drain, sterilization that sterilizes by irradiating the air blown into the room with ultraviolet rays or contacting with ozone. A processing unit or the like may be provided.

  As described above, the liquid heated to 120 ° C. in the liquid storage tank 410 by the connection between the circulating fluid pipe 430 and the fan convector 450 is connected to the connection circulating unit 431, the circulating fluid heat exchanging unit 432, and the first sending and circulating unit. Circulate in the order of the unit 433, the circulating fluid pump 440, the second feeding / circulation unit 434, the fan con vector 450, the third feeding / circulation unit 435, the main circulation unit 436, and the return circulation unit 437. The interior space is heated (cooled), and the field portion 210 is heated (cooled) from the ground.

  The air circulation device 500 circulates the air in the thermal storage room 340. The air circulation device 500 includes an air pipe 510 that circulates the air inside the thermal storage room 340, and a blower pump 520 that is provided in the middle of the air pipe 510 and adjusts the amount of air blown inside the thermal storage room 340. It is equipped with.

  One end of the air pipe 510 is opened in the thermal storage room 340 and is led to the outside of the pile main body 300 and connected to the blower pump 520, and one end is connected to the suction part 511. And an air heat exchanging part 512 wound spirally along the outer peripheral surface 300 </ b> A of the main body part 300.

The suction part 511 is flexible such as a pressure-resistant hose and a cold-resistant hose, and has an outer diameter fitted into the second through-hole 312 formed in the outer peripheral wall part 310 and the fourth through-hole 704 formed in the concrete pipe 700. It is a tubular object that can be inserted. The suction part 511 is inserted into the second through-hole 312 at one end, opens near the upper end part inside the thermal storage room 340, is connected to the blower pump 520 installed in the concrete pipe 700, and The pump 520 is inserted into the fourth through hole 704 and extends outside the pile body 300. In addition, between the inner peripheral edge of the 2nd through-hole 312 and the outer peripheral surface of the suction part 511, it fills and obstruct | occludes fillers which are not shown in figure, such as a sealing material, for example.
Here, the blower pump 520 is provided inside the concrete pipe 700 and is disposed in the middle of the suction portion 511. The blower pump 520 sucks in the air in the warming chamber 340.

One end of the air heat exchanging part 512 is electrically connected to the suction part 511, and the outer peripheral surface 300 </ b> A of the pile body part 300 is spirally wound from the upper part to the lower part in the axial direction of the pile body part 300. Yes. The air heat exchanging part 512 is similar to the circulating fluid heat exchanging part 432 described above, for example, one end of the air heat exchanging part 512 is located at a position 3 m from the upper end of the pile main body part 300, and the pile main body part 300. The other end of the air heat exchanging part 512 is located at a position 1 m from the lower end of the pile, and is wound around the outer peripheral surface 300 </ b> A of the pile main body part 300 over about 2 m.
Moreover, the inclination angle and the space | interval of a pipe | tube and a pipe | tube at the time of winding the heat exchange part 512 for air around the outer peripheral surface 300A of the pile main-body part 300 are not specifically limited, It can adjust suitably.
The other end of the air heat exchanging part 512 is fitted into the third through hole 313 formed in the outer peripheral wall part 310 of the pile main body part 300, and the inner peripheral edge of the third through hole 313 and the heat for air. Between the outer peripheral surface of the pipe of the exchange part 512, for example, a filler (not shown) such as a sealing material is filled and closed.

The air heat exchanging section 512 is formed of a material having high heat resistance and high heat conductivity, such as a copper pipe.
Such an air heat exchanging part 512 keeps the warming room 340 that is the internal space of the pile main body part 300 from the outside, and integrally surrounds the periphery of the pile main body part 300 including the soil outside the pile main body part 300. It is something to warm up.
The air heat exchanging part 512 and the circulating fluid heat exchanging part 432 are alternately spirally wound along the outer peripheral surface 300 </ b> A of the pile main body part 300.

  As described above, the air heated by the air pipe 510 and the blower pump 520 in the warming chamber 340 passes through the warming chamber 340, the suction unit 511, and the air heat exchange unit 512 to the warming chamber 340. It circulates and heats the warming room 340 which is the internal space of the pile main body 300 from the outside, and integrally warms the periphery of the pile main body 300 including soil outside the pile main body 300.

  The pile construction part 600 has a substantially cylindrical body part 610 as shown in FIG. The body 610 is formed of a steel pipe in a cylindrical shape having a diameter of 190.7 mm, a length of about 30 cm, and a wall thickness of about 5 mm. One end of the body portion 610 in the axial direction is formed so that the pile main body portion 300 can be integrally connected on the same axis by welding, and a substantially disc-like shape (not shown) is formed at the boundary between the body portion 610 and the pile main body portion 300. The closing plate is provided by welding or the like and is substantially closed in the axial direction. Here, the substantially closed state may be a state in which earth and sand cannot be circulated when the pile main body 300 is embedded in the ground, for example.

  A plurality of flat excavation blades 620, for example, a pair are provided on the outer peripheral surface of the body portion 610. The excavating blade 620 is formed of a steel plate in a flat plate shape having a vertical dimension of about 20 cm, a horizontal dimension of about 10 cm, and a thickness dimension of about 5 to 7 mm. Further, an arcuate cutout 630 is provided on one side in the longitudinal direction of the excavating blade 620. The excavating blade 620 is integrally joined by, for example, welding in a state where the notch portion 630 engages with the outer peripheral surface of the body portion 610 and the flat surface is inclined with respect to the axial direction of the body portion 610. Further, the excavation blade 620 has an edge located on the distal end side which is the other end in the axial direction of the pile main body portion 300, which is the distal end edge of the excavation blade 620, which is continuous with the outer peripheral surface of the body portion 610. It is joined so that it protrudes in the circumferential direction. The plurality of excavating blades 620 are inclined in the same direction, that is, a state in which a plane on the pile main body portion 300 side connected to the body portion 610 on the same surface side is inclined in the same direction in the circumferential direction of the body portion 610. Is provided.

Furthermore, excavation claw portions 640 are provided at the corners of the excavation blades 620, respectively. These excavation claw portions 640 are formed in a wedge shape by casting, for example. And the excavation nail | claw part 640 is joined to the lower surface side of the excavation blade 620, ie, the surface on the opposite side to the side where the pile main-body part 300 leads out from the trunk | drum 610, for example by welding. Further, the excavation claw portion 640 is joined so that the tip side protruding from the excavation blade 620 gradually becomes thinner. Further, the excavation claw part 640 protrudes from the excavation blade 620 and is welded substantially along the tangential direction at the corner of the circumference passing through the corner of the excavation blade 620 with the central axis of the body 610 as the center.
And the pile construction part 600 is formed so that the maximum diameter dimension when it rotates centering on the central axis of the trunk | drum part 610 may be about 30 cm. That is, the excavation blade 620 is joined in a state where the outer peripheral corner of the tip edge of the excavation blade 620 is about 15 cm away from the center of the body portion 610. Thereby, the pile construction part 600 is excavated with a diameter of about 30 cm and drilled in the ground.

The concrete pipe 700 is formed at the upper end in the vertical direction, which is one end in the axial direction of the pile main body 300. The concrete pipe 700 is formed in a well tube having a predetermined thickness, for example, a thickness of about 15 cm, in a groove 810 excavated in a substantially circular shape on the ground. Specifically, a mold frame is assembled so as to surround a reinforcing bar (not shown) formed on the crushed stone laid in the groove 810, and the upper end closing portion 320 of the pile main body 300 is exposed in the mold frame. Concrete is cast in place to form. The dimensions of the concrete pipe 700 are, for example, 50 cm high and 50 cm in diameter, and are embedded in a state of protruding about 15 cm from the ground.
In addition, various pipes, a circulating fluid pump 440, and a blower pump 520 are installed in the concrete pipe 700, and a plurality of through holes for inserting various pipes and wirings are formed. Specifically, the first through hole 701, the second through hole 702, the third through hole 703, and the fourth through hole.

[Construction method of temperature control system]
Next, a method for constructing the temperature control system will be described with reference to the drawings.
FIG. 3 is a schematic explanatory diagram illustrating a situation where excavation is performed. FIG. 4 is a schematic explanatory view showing a state in which the outer pipe pile is inserted into the excavation hole. FIG. 5 is a schematic explanatory view showing a state in which a pile main body portion is inserted on the inner peripheral side of the outer peripheral pipe pile. FIG. 6 is a schematic explanatory view showing a state in which the outer peripheral pipe pile is removed and a concrete pipe is placed.

First, an investigation process for investigating the depth at which the pile main body 300 can be embedded in the ground is performed. This investigation can be conducted by commonly used boring.
Next, the length of the pile main body 300 is adjusted based on the result of the investigation process. In this embodiment, a pile main body 300 having a length of 8 m is used. That is, the tip of the pile body 300 is located at a point of about 8.0 m from the ground surface.

  Next, the first excavation process shown in FIG. 3 is performed. In the first excavation process, excavation is performed to a position 1 m shallower than the depth of the tip when the pile main body 300 is embedded. The excavation hole 820 is formed by excavating from the ground surface to a point of 7.0 m using the excavation pipe pile 910 having a diameter of 300 mm and a length of about 8 m. In addition, the pile construction part similar to the above-mentioned pile construction part 600 is welded to the front-end | tip of the pipe pile 910 for excavation, and excavation is enabled.

Specifically, excavation is performed according to the following procedure.
A pile driving jig is fitted to a hydraulic motor attached to the tip of a crane of a crane vehicle (not shown). In addition, by operating the crane of the crane vehicle in a predetermined position in advance, the excavation pipe pile 910 in which the pile construction part 600 is joined to one end is positioned on the lower side in the vertical direction. The excavation pipe pile 910 is fitted to the pile driving jig attached to the tip of the crane of the crane vehicle, and the excavation pipe pile 910 is suspended from the crane by the pile driving jig. Support it down.
Thereafter, the pile driving jig is rotated by driving the hydraulic motor. By this rotation, the excavating pipe pile 910 also rotates integrally. And the rotational torque and load at the time of embedding are measured with a torque meter of a crane cab (not shown), the softness of the ground is judged, and the embedding state of the pipe pile for excavation 910 is judged, a predetermined depth, this embodiment Then, excavate to a point of 7.0m.

After excavation, the excavation pipe pile 910 is pulled out from the excavation hole 820.
Next, a second excavation process is performed.
As shown in FIG. 4, an outer peripheral pipe pile 920 having the same diameter (300 mm) as the excavating pipe pile 910 and having both ends opened and communicated with each other is inserted into the excavating hole 820. Next, as shown in FIG. 5, a pile main body 300 having a diameter of 190.7 mm around which a copper pipe as the circulating fluid pipe 430 and the air pipe 510 is wound is inserted on the inner peripheral side of the outer pipe pile 920. To do. And it excavates to a predetermined | prescribed point (point of 8.0 m from the ground surface) by the pile construction part 600 of the pile main-body part 300. FIG. Specifically, excavation is performed in the same manner as in the first excavation step.

Next, an embedding process is performed. In the embedding process, the outer peripheral pipe pile 920 is pulled out from the excavation hole 820 and the pile main body 300 is embedded in the ground.
And as shown in FIG. 6, the concrete pipe 700 is laid along the groove | channel 810, and the pile main-body part 300 is embed | buried in the ground in the following procedures.

After embedding the pile main body 300 at a predetermined position, a substantially circular groove 810 having a predetermined depth from the ground level GL, which is the ground surface, and a depth of 35 cm in this embodiment is provided around the pile main body 300 embedded. It is formed by excavating the ground with backfo.
Thereafter, the upper end portion is cut so that the upper end edge is located at a predetermined depth position from the ground pile GL that is an excess pile body portion 300 protruding from the bottom surface of the concrete pipe 700. The excess piece of the pile main body 300 is used as, for example, the body 610 of the pile construction unit 600 or reused as a steel pile as iron scrap.
Furthermore, as shown in FIG. 6, the upper end closed part 320 is fitted to the upper end part of the pile main body part 300 whose excess upper end part is cut, and the pile having an internal space in which the upper end side of the pile main body part 300 is closed. Make up.
Although not shown, various piping and wiring are inserted into a plurality of through holes provided in advance in the upper end closing portion 320.
In addition, through holes are also formed in the concrete pipe 700 at predetermined positions so that the inside of the concrete pipe 700 communicates with the outside ground.

Various pipes are arranged in the pile main body 300 and the concrete pipe 700 buried therein. That is, the ends of the circulating fluid heat exchanging portion 432 and the air heat exchanging portion 512 that have been wound around the pile main body 300 in advance are inserted into the through holes of the concrete pipe 700 and connected to predetermined positions, respectively. To do. Furthermore, the feed circulation part 433 and the air pipe 510 extending from the greenhouse 200 are connected to predetermined positions, and the return circulation part 437 is respectively inserted into the through holes of the upper end closing part 320, so Each is connected in a state where the circumferential side communicates.
And the clearance gap between these piping and a through-hole should just block | close with a sealing material etc., for example. That is, it is possible to prevent dirt and sand from flowing into the pile main body 300 and depositing in the pile main body 300 by forming a slightly larger through-hole so that the pipe insertion work is easy and sealing after the pipe. The volume in the pile main body 300 for good air conditioning can be secured.
Finally, the excavated ground is appropriately backfilled as necessary in the piping work.

  Such a temperature control system can be used by operating switches (not shown) of the power supply unit 423, the circulating fluid pump 440, and the blower pump 520 of the heating device 420. Each switch is provided in the greenhouse 200 and can be operated from within the greenhouse 200. Each switch may be combined into one switch or may have a temperature adjustment function.

[Effects of temperature control system]
In the said embodiment, since the pile main-body part 300 is embed | buried to the deep position in the underground relatively deep, for example, 3 m or more deep from the ground surface, the underground temperature is stable inside the pile main-body part 300. . The air in the thermal insulation chamber 340 closed inside the pile main body 300 is subjected to heat exchange with the ground via the steel pipe pile main body 300 having high heat conduction efficiency with the ground.
For example, in an area with severe winter cold, the underground temperature is higher than the outside air temperature. The air in the warm room 340 can maintain the same temperature as the temperature in the ground, that is, a temperature higher than the outside air temperature, by heat exchange with the ground. In the summer, since the temperature in the ground is lower than the outside temperature, the air in the thermal storage room 340 maintains the same temperature as the temperature in the ground by heat exchange with the ground, that is, a temperature lower than the outside temperature. be able to.
Moreover, the liquid in the liquid storage tank 410 installed in the substantially central part of the warm chamber 340 can maintain the same temperature as the temperature in the warm chamber 340 by heat exchange with the air in the warm chamber 340.

  When power is supplied to the heating device 420 installed in the liquid storage tank 410, the liquid stored in the liquid storage tank 410 is heated and the temperature of the liquid rises. Then, the liquid heated by the circulating liquid pump 440 in the liquid storage tank 410 is discharged from the discharge port 414 to the connection circulating unit 431, the circulating fluid heat exchanging unit 432, the first feeding and circulating unit 433, and the second feeding and circulating unit 434. The fan con vector 450, the third circulation unit 435, the main circulation unit 436, and the return circulation unit 437 are circulated in this order and circulated to the water supply port 415 of the liquid storage tank 410. In this manner, the heated liquid is introduced into the fan convector 450, so that warm air can be blown into the greenhouse 200, and the internal space of the greenhouse 200 can be heated. Further, since the circulating fluid circulates inside the main circulation part 436 embedded in the ground of the field part 210, the temperature of the seedling planted in the field part 210 can be kept constant, and the growth of the seedling is good. Therefore, stable crop supply can be achieved. Moreover, the heating effect in the greenhouse 200 can be acquired by heating the field part 210 which is the ground surface.

  In such a configuration, in the winter, the temperature in the temperature-retaining room 340 is maintained at a temperature higher than the outside air temperature (stable at a constant temperature). The energy for raising the temperature can be reduced. That is, energy saving can be achieved.

  Moreover, since the circulating fluid heat exchanging part 432 is spirally wound along the outer peripheral surface 300A of the pile main body 300, the heat retaining room 340 is externally moved by the liquid flowing through the circulating fluid heat exchanging part 432. While warming, the external soil around the circulating fluid heat exchanging portion 432 of the pile body 300 can also be warmed. That is, since the inside of the thermal insulation chamber 340 and the surrounding soil are warmed, a thermal insulation effect is obtained in the thermal insulation room 340.

Accordingly, even when the temperature control system 100 is not operated, the temperature decrease in the temperature keeping chamber 340 and the liquid storage tank 410 is small due to this heat retention effect, and when the temperature control system 100 is operated again, Electric power supply can be reduced, and further energy saving can be achieved.
As described above, the thermal insulation 340 is disposed in the ground, and the area around the thermal insulation 340 is wound around the heat exchanger 432 for circulating fluid through which the liquid circulates to warm the entire area around the thermal insulation 340. A further heat retaining effect of the chamber 340 can be obtained.

Further, in the above embodiment, the air warmed in the thermal storage room 340 is sucked by the blower pump 520, and the sucked air circulates inside the suction part 511 and the air heat exchange part 512 to the warming room 340. And circulate.
Therefore, since the air heated (heat-retained) in the heat-retaining room 340 circulates through the air heat exchanger 512 wound spirally around the outer periphery of the pile main body 300, the heat-retaining room 340 is heated from the outside ( By being kept warm), not only the inside of the warm chamber 340 but also the surrounding area including the soil outside the warm chamber 340 is warmed (warmed), and the warming effect can be further improved. That is, energy saving can be achieved.

In addition, a plate-shaped excavation blade 620 is integrally joined to the pile main body 300 in a state where the plane is inclined obliquely with respect to the axial direction of the body portion 610, and excavation claw portions are formed at the corners of the excavation blade 620. A pile construction unit 600 having 640 is provided.
With such a simple configuration, for example, it is possible to easily provide a relatively thick excavating blade 620 that can excavate well even when there are tree roots or gravel in the ground, and the pile main body 300 can be easily attached to a predetermined body. Can be buried to depth. Furthermore, since the excavation claw portion 640 is located at the corner of the excavation blade 620, wear during excavation at the corner of the excavation blade 620 can be prevented, and excavation ability can be ensured reliably until the pile body 300 is buried. It is possible to excavate to a predetermined depth without fail.

Since the circulating fluid heat exchanging portion 432 and the air heat exchanging portion are wound around the outer periphery of the pile main body 300, it is difficult to perform the construction in a normal pile driving process.
In the said embodiment, after forming the excavation hole 820 which has a larger diameter than the pile main-body part 300 by a 1st excavation process, the outer periphery pipe pile 920 which has a larger diameter than the pile main-body part 300 is inserted, and this outer peripheral pipe pile The pile main body 300 was inserted into the inner peripheral side of 920, the lower end side of the pile main body 300 was excavated by the second excavation process, and then the outer pipe pile 920 was pulled out.
By performing the construction in such a process, the circulating fluid heat exchanging part 432 and the air heat exchanging part wound around the outer periphery of the pile main body 300 are the inner peripheral side of the outer pipe pile 920 in the second excavation process. Since it is rotated in the space, there is no fear of being damaged by external soil or the like, and it can be reliably buried.

[Modification]
Note that the present invention is not limited to the above-described embodiment, and includes other configurations that can achieve the object of the present invention, and includes the following modifications and the like.

  That is, the pile main body 300 used as a pile is not limited to a cylindrical shape, and may be, for example, a rectangular tube shape or an elliptical tube shape.

  In the above embodiment, the case of heating has been described, but it can also be used for cooling in summer. In this case, since the air temperature in the warm storage chamber 340 is maintained at a temperature lower than the outside air temperature, the liquid in the liquid storage tank 410 is also maintained at a temperature lower than the outside air temperature. Therefore, a cooling effect can be obtained in the fan convector 450 and the main circulation unit 436 by circulating such a low-temperature liquid through the circulation liquid pipe 430.

  Moreover, in the said embodiment, although the heat retention room 340 was formed in the space enclosed by the outer peripheral wall part 310, the upper end obstruction | occlusion part 320, and the lower end obstruction | occlusion part 330, a partition plate is welded to the internal space of the pile main-body part 300, etc. Then, a space surrounded by the outer peripheral wall portion 310, the upper end closing portion 320, and the partition plate may be used as the thermal storage room 340. In this way, the size of the thermal storage room 340 can be changed as appropriate.

Furthermore, the pile body 300 is not limited to a steel system, and various steel pipes such as stainless steel can be used. In particular, it is preferable to use a steel pipe having high thermal conductivity because the heat retention effect is high.
And as the pile main-body part 300, it is good to give corrosion resistance to an internal peripheral surface, for example, apply | coat a corrosion-resistant coating material, or to form with corrosion-resistant stainless steel. As a result, it is possible to prevent liquid piles from adhering to the inner surface of the thermal storage room 340 due to condensation or the like, and the pile main body 300 from being corroded, and to provide the temperature control system 100 of the present invention stably for a long time. In addition, the air in the temperature-retaining room 340 can be kept clean by preventing a strange odor due to corrosion.

  In the said embodiment, although comprised with the one pile main-body part 300, the number of the pile main-body parts 300 is not restricted to this. You may comprise by several according to the magnitude | sizes of a building etc. Moreover, although the diameter of the pile main-body part 300 was 190.7 mm, what is necessary is just to adjust suitably according to the magnitude | sizes of a building etc.

  In the above embodiment, only one fan con vector 450 is installed. However, a plurality of fan con vectors may be installed according to the size of the greenhouse 200. In this case, it is preferable to install them at intervals of 7 m or more and 10 m or less, and the third sending and circulating unit 435 is connected to each fan convector. Thereby, the temperature in the greenhouse 200 can be kept constant.

  Further, in the above embodiment, another vinyl sheet may be stretched inside the greenhouse 200. Thereby, the further heat retention effect is acquired and energy saving can be aimed at.

Although the structure which welded the pile construction part 600 to the front-end | tip of the pile main-body part 300 was demonstrated, you may provide the excavation blade 620 in the front-end | tip part of the pile main-body part 300, for example.
Further, the number of excavation blades 620 is not limited to two, and for example, three or more excavation blades may be provided, or only one or a plurality of excavation blades may be provided spirally. Furthermore, the excavation claw portion 640 may not be provided. And the front end edge of the trunk | drum 610 may be formed in a sawtooth shape, for example, and excavation property may be improved.

  In addition, as heating by the heating device, for example, a temperature sensor that detects the outside air temperature or the temperature in the room is provided, and the heating device is operated based on the temperature by this temperature sensor. May be functional. Moreover, it is good also as a structure which switches between air_conditioning | cooling and heating by the switching means by which switching operation by the user provided separately is carried out.

Furthermore, the concrete pipe 700 is not limited to a cylindrical shape, and may be a rectangular tube shape or an elliptical tube shape, for example.
Further, the concrete pipe 700 may be provided with a drainage portion formed by a drainage pipe. For example, a substantially cylindrical pipe is installed on the bottom surface of the concrete pipe 700 so that the inside of the pipe is inserted in the vertical direction, and the upper end of the pipe extends, for example, to the same height as the upper end closing part 320 of the pile body part 300. Put out. And the hole which the water accumulated in the concrete pipe 700 can distribute | circulate is formed in the part which piping touches a bottom face. Therefore, the water level stored in the concrete pipe 700 is the same as the water level in the drainage portion. And a pump can be inserted in piping of this drainage part, and water can be drained.

  Moreover, in the said embodiment, you may adjust the temperature in the greenhouse 200 by directly blowing in the greenhouse 200 the air warmed (heat-retained) in the heat retention room 340. FIG. In this case, piping for connecting the thermal storage room 340 and the interior space of the greenhouse 200 is provided, and the air in the thermal storage room 340 is sucked by a suction pump or the like and directly blown into the greenhouse 200. According to this, since the air heated in the thermal storage room 340 is used, the heating effect is high and energy saving can be achieved.

In the above embodiment, the vinyl house 200 has been described as an example, but the present invention can also be applied to a building such as a house or a basement. When used for a building such as a house or a basement, the floor can be heated instead of the above-mentioned field portion 210, so that it can also be used for floor heating.
Moreover, it can be used also as a snow melting system by burying the circulating fluid piping 430 in the ground such as a parking lot.

  In the above embodiment, the temperature inside the building is adjusted by circulating the liquid. However, the temperature inside the building is adjusted by directly blowing the air inside the warming room to the building. Also good. In this case, the circulating fluid piping may be configured to circulate only between the liquid storage tank 410 and the outer periphery of the pile main body 300. Thereby, the temperature control system with a high energy-saving effect can be provided.

  In addition, the specific structure and shape in the implementation of the present invention may be other structures as long as the object of the present invention can be achieved.

It was confirmed as follows that a heat retention effect was obtained by the temperature control system of the above embodiment.
In the said embodiment, the thermometer was each installed in the place shown below, and the temperature of each place was measured every 4 hours. The temperature control system 100 was operated by a switch or the like around 16:00 when the outside air temperature began to drop, and was stopped by a switch or the like around 8 o'clock when the outside air temperature began to rise. In addition, during the operation of the temperature control system 100, constant power was supplied by the heating device 420.

(A) Outside of the greenhouse 200 on the ground (outside temperature)
(B) The outside of the pile main body 300 in the ground (C) The warm room 340 (the inside of the pile main body 300)
(D) Near this circulation part 436 (connection joint with the third feed circulation part 435)
(E) Inside of the greenhouse 200 The measurement results are shown in FIG.

As can be seen from FIG. 7, when C, D and E are operated for the first time, when operated for the second time, and when operated for the third time, the second time from the first time and the second time from the second time It turns out that the temperature of the 3rd time is rising. In particular, in C, a constant temperature is maintained even in the stop period between the second time and the third time.
From this, it can be said that the thermal insulation effect is improved every time the temperature control system 100 is operated. Therefore, every time it is operated, it can be raised to the target temperature with a smaller electric power. That is, it is possible to save electric power.

  INDUSTRIAL APPLICATION This invention can be utilized as a temperature control system which adjusts the temperature inside buildings, such as a greenhouse and a house.

Schematic which shows schematic structure of the temperature control system concerning one Embodiment of this invention. The side view which notched a part which shows schematic structure of the upper end part of the pile in the said one Embodiment. Schematic explanatory drawing which shows the condition which excavates in order to construct the temperature control system in the said one Embodiment. Schematic explanatory drawing which shows the state which inserted the outer periphery pipe pile in the excavation hole in order to construct the temperature control system in the said one Embodiment. The schematic explanatory drawing which shows the state which inserted the pile main-body part in the inner peripheral side of an outer periphery pipe pile in order to construct the temperature control system in the said one Embodiment. The schematic explanatory drawing which shows the state which removed the outer periphery pipe pile and laid the concrete pipe in order to construct the temperature control system in the said one Embodiment. The graph which shows the temperature change of the temperature control system in an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Temperature control system 200 Greenhouse 300 Pile main-body part 320 Upper end obstruction | occlusion part 400 Liquid circulation apparatus 410 Liquid storage tank 420 Heating apparatus 430 Circulating liquid piping 431 Connection circulation part 432 Circulating fluid heat exchange part 433 First sending / circulation part 434 1st Second circulating unit 435 Third circulating unit 437 Return circulating unit 440 Circulating fluid pump 450 Fan convector 500 Air circulating device 510 Air piping 511 Suction unit 512 Air heat exchanging unit 520 Blow pump 600 Pile construction unit 700 Concrete pipe

Claims (6)

Piles buried in the ground,
A thermal insulation chamber blocked within the pile;
A storage tank capable of storing liquid,
A heating device installed inside the liquid storage tank and heating the liquid stored in the liquid storage tank;
A circulating liquid pipe for circulating the liquid stored in the liquid storage tank between the liquid storage tank and a temperature adjustment target;
A circulating fluid pump that is provided in the middle of the circulating fluid piping and adjusts the amount of the liquid that is circulated between the liquid storage tank and the temperature adjustment target;
An air pipe for circulating the air inside the warming chamber;
A blower pump that is provided in the middle of the air pipe and adjusts the amount of air to be circulated , and
The circulating fluid pipe includes a circulating fluid heat exchange section wound spirally along the outer peripheral surface of the pile ,
The said air piping has the heat exchange part for air wound spirally along the outer peripheral surface of the said pile, The temperature control system characterized by the above-mentioned. The temperature control system according to claim 1 .
The temperature control system, wherein the liquid storage tank is installed in the inside of the greenhouse. The temperature control system according to claim 1 or 2 ,
The said air piping has a ventilation part which ventilates the air inside the said warm storage room to the internal space of the said temperature control target object. The temperature control system characterized by the above-mentioned. The temperature control system according to any one of claims 1 to 3 ,
The temperature control object is a building,
An air conditioning apparatus that is installed inside the building and adjusts the air conditioning inside the building by exchanging heat between the supplied liquid and air;
The circulating fluid piping is connected to the air conditioning unit. The temperature control system according to any one of claims 1 to 4 ,
The temperature control system is characterized in that the temperature control object is a ground surface. It is the construction method of the temperature control system which constructs the temperature control system in any one of Claims 1-5 ,
An investigation process for investigating the maximum depth at which the pile can be buried in the ground,
A first excavation step in which excavation holes are formed by excavating to a excavation depth located at a distance greater than or equal to the distance between the tip of the pile and the lowest end of the heat exchanger for circulating fluid from the maximum depth toward the ground surface. When,
An outer pipe having a diameter larger than the diameter of the pile is inserted into the excavation hole, the pile having the heat exchanger for the circulating fluid is inserted on the inner circumference side of the outer pipe, and the pile is moved to the maximum depth. A second excavation step for excavation;
And a burying step of burying the pile by pulling out the outer peripheral pipe from the excavation hole.

Images