JP5183948B2 - Heat exchanger - Google Patents

Description

  The present invention relates to a heat exchange device that performs heat exchange with the outside by filling a liquid inside and circulating the liquid.

From the viewpoint of protection of the global environment, etc., development of energy that does not depend on fossil energy, technology for reusing energy, and various technologies for efficient use have been developed. For example, Patent Literature 1 discloses a geothermal heat utilization device that performs heating and cooling by transmitting geothermal heat to air and circulating the air. In patent document 1, the circulating air is cooled or heated with the circulating water in the ground, and the amount of heat received or radiated in the ground is increased to improve the heat utilization rate.
Japanese Patent No. 3616760

  However, the geothermal utilization apparatus described in Patent Document 1 extracts geothermal energy using air as a medium by forcibly sucking or discarding air that is a heat exchange medium. That is, in order to operate the heat exchange device of Patent Document 1, a drive source and drive energy for air intake / exhaust are required. In addition, a complicated structure is required, such as a double pipe structure for the heat exchange part of water and air. Furthermore, in order to circulate water in the ground using the temperature difference in the ground, it is difficult to reduce the size because a water circulation portion having a height difference of about 1.5 meters from a depth of 4 to 5 meters is required.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a heat exchange device that does not require a drive source and can be reduced in size according to the installation environment with a simple structure. And

In order to solve the above-described problems, the heat exchange device of the present invention is filled with a liquid serving as a heat exchange medium and is connected to the first heat exchange unit and the first heat exchange unit connected by a highly heat-insulating liquid circulation path. A heat exchange device comprising two heat exchange units ,
The before and Symbol first heat exchanging portion and the second heat exchange unit, arranged at different locations temperature environment, and the first heat exchange unit and the second heat exchange portion, of the each heat exchanger Installed so that there is a height difference at the entrance and exit of the liquid ,
The first heat exchanging unit and the second heat exchanging unit include a plurality of thin tubes, and temporary storage units at upper and lower portions connected by upper and lower ends of the plural thin tubes,
The upper and lower temporary storage units are respectively connected to the liquid circulation path, and the liquid in the first and second heat exchange units moves in one direction due to temperature fluctuations in the external environment, respectively, The liquid circulates in the liquid circulation path by natural convection .

According to the present invention, when heat exchange with the outside is performed in the first and second heat exchange units, the temperature of a part of the liquid inside is warmed or cooled. When the liquid temperature changes, the specific gravity of the liquid changes. On the other hand, since the first and second heat exchanging units are installed with a height difference, the warmed liquid moves upward by natural convection. Conversely, the cooled liquid moves downward. Furthermore, since the first heat exchange unit and the second heat exchange unit are installed in different temperature environments, the liquid circulates in one direction due to a temperature difference. Thus, heat exchange can be repeated in the first exchange unit and the second heat exchange unit by the circulation of the liquid by natural convection.
Further, by using the thin tube 23, the contact area between the external environmental temperature and the internal liquid can be increased, and the heat exchange efficiency can be improved. Moreover, since the upper and lower convection will generate | occur | produce inside the thin tube 23 when the diameter of the thin tube 23 is large, it is preferable that the diameter of a thin tube is not enlarged too much.

The heat exchange device according to another aspect of the present invention is characterized in that the plurality of thin tubes are composed of an outer thin tube and an inner thin tube, and the inner thin tube is narrower than the outer thin tube.
In the heat exchange device according to another aspect of the present invention, the plurality of thin tubes are arranged in parallel on a plane, and the upper and lower temporary storage portions are temporarily connected to the upper and lower ends of the plurality of thin tubes. It is a retention pipe
The heat exchange device according to another aspect of the present invention is characterized in that the plurality of thin tubes have a diameter such that convection does not occur inside.
The heat exchange apparatus according to another aspect of the present invention is characterized in that the plurality of thin tubes are made of copper tubes having a tube diameter of 18 mm or less.
The heat exchange device according to another aspect of the present invention is characterized in that the plurality of thin tubes are made of a copper tube having a tube diameter of 5 mm or less.
In the heat exchanging device according to another aspect of the present invention, the first heat exchanging portion and the second heat exchanging portion are made of a material having excellent heat conductivity, and the material having excellent heat conductivity is used. The heat energy of the liquid is transferred to the liquid to absorb the heat, or the heat energy of the liquid is dissipated to the outside, and the liquid is unidirectionally convected by the temperature difference of the liquid generated by the heat absorption or heat dissipation. It is made to move.
According to these aspects, it is possible to exchange heat only by passing a liquid that is a heat exchange medium through a heat exchange section having high thermal conductivity, and the heat exchange operation is repeated only by natural convection due to a temperature difference associated with heat exchange. Can be, and no other drive source is required.

  In the heat exchanging device according to another aspect of the present invention, the first heat exchanging unit and the second heat exchanging unit further have a difference in height from the inlet to the outlet of the liquid passage in the liquid passage. It is configured to increase the heat exchange area in contact with the liquid while maintaining it to change in one direction. As a result, the warmed liquid is likely to rise and the cooled liquid is likely to be lowered, so that circulation of the liquid in one direction by natural convection is promoted.

In the heat exchange device according to another aspect of the present invention, the first and second heat exchange units perform heat exchange by allowing the liquid to pass through a plurality of thin tubes made of a material having excellent heat conductivity. It is characterized by. In this way, by passing the liquid through the plurality of thin tubes in the heat exchange section,
The heat exchange area is increased and efficient heat exchange is possible.

  The heat exchange device according to another aspect of the present invention is characterized in that the thin tube has a ridge-shaped unevenness on an outer surface and an inner surface. By providing bowl-shaped irregularities on the outer and inner surfaces of the thin tube, the contact area with the external environment increases on the outer surface of the thin tube and the contact area with the liquid increases on the inner surface, thereby enabling more efficient heat exchange.

  The heat exchange device according to another aspect of the present invention is characterized in that the thin tube includes a plurality of valleys and peaks extending in the longitudinal direction. In this aspect, by providing a plurality of crests and troughs extending along the longitudinal direction (parallel to the axis) on the surface and the inner surface of the thin tube, the contact area between the thin tube and the liquid is prevented without hindering the flow of liquid due to natural convection. Can be increased.

  The heat exchange apparatus according to another aspect of the present invention is characterized in that the first heat exchange unit is installed in the atmosphere and the second heat exchange unit is installed in the ground. According to this aspect, in Japan, the liquid that is a heat exchange medium is heated by solar energy in the first heat exchange section in summer and cooled by geothermal heat in the second heat exchange section. In winter, the second heating unit heats with geothermal heat and the first heat exchange unit cools.

The heat exchange device according to another aspect of the present invention is characterized in that the first and second heat exchange units can be downsized, the circulation path is made of a flexible material, and the installation location can be moved. To do. Since the heat exchanging device of the present invention can have a heat exchanging portion with a very simple configuration, according to this aspect, a portable or mobile heat exchanging device can be provided.

  According to the present invention, as described above, heat exchange can be performed by natural convection between the first heat exchange unit and the second heat exchange unit, so that no drive source is required. Therefore, it is possible to provide a heat exchange device that does not require driving energy other than the temperature difference and can operate permanently. In addition, since the first heat exchanging part and the second heat exchanging part are connected by a liquid passage made of a highly heat-insulating material and liquid is simply sealed inside, a large-scale heat exchanging system can be used. It is also possible to provide a heat exchanger that is small and portable. Furthermore, since the structure is simple, it is possible to provide an extremely inexpensive heat exchange device.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram for explaining the principle of the heat exchange device of the present invention. Reference numeral 11 denotes a first heat exchange unit, and 12 denotes a second heat exchange unit. The ends of the first heat exchange section 11 and the second heat exchange section 12 are connected by a first circulation path 14 and a second circulation path 15 that are hollow inside, such as pipes. The first circulation path 14 and the second circulation path 15 are made of highly heat-insulating members, and it is desirable that heat loss be as small as possible.

The first heat exchange unit 11, the second heat exchange unit 12, the first circulation path 14, and the second circulation path 15 are filled with water, antifreeze liquid, or other liquid that easily absorbs thermal energy. Yes. In FIG. 1A, it is assumed that there is a height difference in the vertical direction on the paper surface, the first heat exchange unit 11 has a height difference h ₁ from the bottom to the top, and the second heat exchange unit 12 has a height difference h _2. Are arranged as follows.

  As the first heat exchange unit 11 and the second heat exchange unit 12, a heat exchanger having the same structure or a different type of heat exchanger may be used. In the following description, it is assumed that a heat exchanger having the same structure is used as the first heat exchange unit and the second heat exchange unit.

The first heat exchange unit 11 and the second heat exchange unit 12 absorb external energy such as outside air temperature or light, and transfer the thermal energy to the internal liquid to increase the temperature of the liquid, Thermal energy is released to the outside to lower the temperature of the liquid. When the temperature of the liquid increases, the specific gravity (density) of the liquid decreases, and when the temperature of the liquid decreases, the specific gravity of the liquid decreases. Therefore, since the first heat exchange units 11 and 12 are provided with the height differences h ₁ and h ₂ , the liquid with a high temperature rises and the liquid with a low temperature falls.

  This will be described in more detail with reference to FIGS. As the liquid (heat exchange medium) filled in the interior, water, antifreeze liquid, and other liquids can be used. FIGS. 1B and 1C show an example in which water is used as the liquid filled therein, and the first heat exchange unit 11 absorbs external energy and raises the temperature of the water. It is assumed that the second heat exchanging unit 12 releases the thermal energy of water to the outside, and the temperature of the water is lowered.

  FIG. 1B schematically shows the state of the first heat exchange unit 11. In the 1st heat exchange part 11, some external water is absorbed and water temperature rises. Warm hot water has a lower specific gravity (lower density) than cold water, so it rises upward as shown by the arrow. As a result, upward natural convection occurs. On the other hand, as shown in FIG.1 (c), in the 2nd heat exchange part 12, since warm water is cooled by external temperature, cold water can be made into a part of warm water. Since cold water has a higher specific gravity than hot water, it falls and natural convection occurs in the direction of the arrow (downward). In this way, the liquid circulates by natural convection in the clockwise direction as shown by the black arrow in FIG. 1A, and heat exchange by natural convection becomes possible.

  On the other hand, when the external environment temperature of the first heat exchange unit 11 is low and the external environment temperature of the second heat exchange unit is high, water is cooled in the first heat exchange unit 11 and the second heat Since the water is warmed in the exchange unit 12, the liquid circulates by natural convection in the counterclockwise direction as shown by the white arrow in FIG. Here, the high or low external environmental temperature means the relative temperature difference between the installation environment of the first heat exchange unit 11 and the installation environment of the second heat exchange unit 12. . In other words, it is sufficient if there is a certain temperature difference between the first heat exchange unit 11 and the second heat exchange unit 12. In addition, the liquid used as the medium for heat exchange can be selected according to the use environment of the heat exchange device. For example, when using in a low temperature environment, it is desirable to use an antifreeze that does not freeze even under the usage environment conditions. Further, when used in a high temperature environment, it is desirable to use a liquid having a high boiling point.

(First embodiment)
A first embodiment of the present invention will be described with reference to FIG. FIG. 2 shows a simple (portable or mobile) heat exchange device 20 according to a first embodiment of the present invention. FIG. 2 (a) uses the heat exchange device 20 according to one embodiment of the present invention to absorb heat from the waste pesticide solution and dissipate it into the ground, thereby preventing the waste pesticide solution from becoming hot due to a chemical reaction. An example is shown. FIG. 2B is a cross-sectional view showing the internal structure of the first and second heat exchange units 21 and 22 of the heat exchange device 20.

  In the heat exchanging device 20 according to the first embodiment, the first heat exchanging part 21 is arranged in the pesticide liquid 42 with a height difference h1, and the second heat exchanging part 22 is an altitude difference h2 in the ground. Is arranged. The second heat exchanging unit 22 may be installed not on the ground but on the ground if there is a sufficient temperature difference from the pesticide solution.

  It is desirable that the heat exchange part of the heat exchange device has a heat exchange area as large as possible. Therefore, the 1st and 2nd heat exchange parts 21 and 22 of the heat exchange apparatus 20 are comprised with the bundle | flux of the several thin tube 23, as shown in FIG.2 (b). The thin tube 23 is made of a metal such as copper having a high thermal conductivity, or a metal such as aluminum having a high thermal conductivity and a high corrosion resistance depending on the use environment. By using the thin tube 23, the contact area between the external environment temperature and the internal liquid can be increased, and the heat exchange efficiency can be improved. Moreover, since the upper and lower convection will generate | occur | produce inside the thin tube 23 when the diameter of the thin tube 23 is large, it is preferable not to make the diameter of a thin tube too large. The size of the diameter is preferably determined as appropriate based on factors such as the temperature of the installation environment and the viscosity of the liquid. The size of the diameter will be further described later.

Further, the size of the narrow tube 23 does not need to be uniform, and as shown in FIG. 2B, the internal thin tube 23 is relatively thick outside and less susceptible to the influence of the external environment, and is thinner than the peripheral thin tube 23. It can also be done. further,
Although not shown in the figure, a rectangular pipe can also be formed by providing a crest and a trough with a cross section of a gear shape or a star shape so as to extend in the longitudinal direction of the thin tube 23, and It is also possible to increase the contact surface area.
Moreover, the above ridges and valleys can be provided only on the contact surface side with the external environment.

  Temporary storage units 26, 27, 28, and 29 are provided at the upper and lower portions of the first and second heat exchange units 21 and 22. The upper and lower ends of the narrow tube 23 are connected to the temporary storage units 26, 27, 28, and 29, and hot water or cold water supplied from the thin tube 23, or supplied from the thin tube 23 to the liquid circulation path. Hot or cold water is temporarily stored.

(Second embodiment)
FIG. 3 shows a heat exchange device 30 according to a second embodiment of the present invention. In the second embodiment, the first heat exchange unit 31 is installed on the roof 35 of the house, and the second heat exchange unit 32 is installed in the ground 41.

The first heat exchanging portion 31 extends laterally over the entire surface of the roof surface 35 in order to increase the area of the heat exchanging portion. First heat exchange section 31 is provided with a temporary residence tube 31a and 31c which are provided with a height difference h ₁ vertically, and a plurality of capillary 31b and the upper and lower temporary convection tubes 31a and 31b are connected Yes. The lower temporary residence pipe 31 a is connected to the second circulation path 35, and the upper temporary residence pipe 31 c is connected to the first circulation path 34.

Second heat exchange portion 32 also spreads in the ground, and a temporary residence tube 32a and 32c provided so that the height difference h ₂ occurs, are connected by a plurality of capillary 32b. The upper temporary residence pipe 32 a is connected to the first circulation path 34, and the lower temporary residence pipe 32 c is connected to the second circulation path 35. The first and second heat conversion units 31 and 35 and the first and second circulation paths 34 and 35 are filled with the liquid 13. The first and second heat exchange units 31 and 32 and the first and second circulation paths 34 and 35 are filled with liquid such as water or antifreeze as a heat exchange medium. In addition, although not shown, an exchange section that can exchange the liquid as the heat exchange medium can be provided in the middle of the circulation paths 34 and 35. This facilitates maintenance such as replacement of the deteriorated liquid.

  The heat exchange operation of the second embodiment will be described. The temperature of the underground 41 varies depending on the latitude, but in Japan, for example, it is a constant temperature of about 15 ° C. at 4 m or less. In Japan, since the temperature is 30 ° C. or higher in summer and 0 ° C. or lower in winter, the temperature environment between the first heat exchange unit 31 and the second heat exchange unit is reversed. Especially in summer, when the first heat conversion unit is exposed to direct sunlight, the temperature rises to close to 60 ° C.

  FIG. 4 schematically shows the summer and winter temperature environments and the circulation direction of the liquid 13 in the second embodiment. FIG. 4 (a) shows the summer state, and FIG. 4 (b) shows the winter state.

  First, the operation in summer will be described. In summer, as shown in FIG. 4A, the temperature of the first heat conversion section rises to near 60 ° C. The liquid 13a in the temporary residence tube 31a and the narrow tube 31b provided in the lower part of the first heat conversion unit 31 is warmed by the outside air temperature or solar heat in the narrow tube 31b, and is temporarily stored through the narrow tube 31b by natural convection. Move to 31c. As a result, the warmed liquid 13b in the temporary retention pipe 31c is pushed out to the first circulation path 34.

  Since the first circulation path is composed of a heat insulating member, the liquid 13b warmed by the first heat exchanging portion 31 is supplied with the second heat from the first circulation path 34 while maintaining the substantially same temperature. It is sent to the temporary retention part 32a and the thin tube 32b of the exchange part 32. Since the temperature in the ground is around 15 ° C., the temperature of the liquid 13b is lowered to near 15 ° C. in this heat exchange section. Since the liquid 13d whose temperature has decreased increases in density, the liquid 13d descends to the temporary retention pipe 32c and is sequentially pushed out to the second circulation path 35. Since the second circulation path 35 is also made of a highly heat-insulating material, the second circulation path 35 is sent to the first heat exchange unit 31 at almost the same temperature. Accordingly, the liquid temperatures 13a and 13c are substantially the same temperature. In this way, in the summer, as shown in FIG. 4, heat exchange is repeated by clockwise circulation by natural convection.

  As described above, the heat absorption effect of the first heat exchange unit 31 absorbs the thermal energy of sunlight irradiated on the roof to prevent the temperature rise of the attic and is supplied from the second heat exchange unit 32. The entire attic is cooled by the cold liquid.

Next, the heat exchange operation in winter will be described. In winter, as shown in FIG. 4B, the outside air temperature drops to near 0 ° C., so the temperature of the liquid 13 a drops to near 0 ° C. in the first heat conversion section 31. When the temperature of the liquid 13 a decreases, the cold liquid 13 a descends through the second circulation path 35 and is sent to the second heat exchange unit 32. The installation environment of the second heat exchange unit 32 is about 15 ° C. because it is underground, and the liquid 13c at 0 ° C. is heated by absorbing geothermal heat.
The liquid heated by the second heat exchanging unit 32 rises due to natural retention in the narrow tube 31b and moves to the temporary retention tube 32a. The liquid 13b heated by natural convection in this way is sequentially sent from the narrow tube 32b to the temporary staying tube 32a, whereby the warmed liquid 13b in the temporary staying tube 32a is pushed out to the first circulation path 34. As a result, the heated liquid 13b is pushed up to the first heat exchanging section 31 through the first circulation path 34. The warmed liquid 13b dissipates heat in the first heat exchanging section 31 and is cooled again to near 0 ° C. The cooled liquid 13a is sent again to the second heat exchanging section 32 through the second circulation path 35, and the circulation in which the same heat exchange is sequentially repeated is executed. In this way, in the winter season, as shown in FIG. 4B, heat exchange is repeated by the circulation of the counterclockwise liquid by natural convection. Thereby, in the winter season, it is possible to warm the attic by dissipating the thermal energy of the liquid at around 15 ° C. heated by the geothermal heat in the first heat exchanging section 31 provided in the attic.

  As described above, according to the second embodiment, heat exchange can be repeated by the circulation of the liquid by natural convection based on the temperature difference between the atmosphere and the ground, so that no special drive source is required, and the cooling is performed in summer. In the winter, it is possible to provide a heat exchange device having a heating effect.

  As mentioned above, although two examples of the heat exchange device of the present invention were shown, the heat exchange device of the present invention is a place where the temperature environment is different (environment with temperature difference and no temperature difference, but the presence or absence of sunlight irradiation) As long as it includes both environments with different temperature energies, etc.). For example, not only geothermal and atmospheric temperatures, but also heat exchange can be performed using the temperature difference between seawater temperature and atmospheric temperature. Moreover, it becomes possible to utilize the waste heat in a factory or a plant as a heat source of another place using the heat exchange apparatus concerning this invention.

  As described above, according to the present invention, the first heat exchange unit and the second heat exchange unit are simply installed at different locations in the temperature environment, and the heat exchange is repeated without requiring another drive source. It becomes possible. Further, since the heat exchange device of the present invention has a simple structure, it can be a large heat exchange system or a small heat exchange device. For example, it is also possible to provide a portable heat exchange device by using the first and second circulation paths as heat insulating tubes made of a flexible material.

The diameter of the thin tube in the heat exchange part will be described in more detail with reference to FIG. FIG. 5 is a graph showing the relationship between the heat flow rate in the tube and the tube diameter. The vertical axis represents the heat flow rate (unit: W / m ² ), and the horizontal axis represents the tube diameter (unit: m). The heat flow was calculated by calculating the amount of energy transport based on the experimental results of experiments using a copper tube as a thin tube. From this graph, it can be seen that the heat flow rate suddenly increases when the diameter of the narrow tube is approximately 5 mm or less. The diameter of the thin tube of the heat exchange part is preferably determined according to the temperature environment (the magnitude of heat energy) in which the heat exchange part is installed.

For example, since the energy given to the ground surface per unit time and unit area in midsummer is about 1000 W / m ² , the thin tube 31b of the first heat exchanging unit 31 of Example 2 has a heat flow rate from the graph of FIG. It is desirable that the tube diameter is more than 1000 W / m ² and 18 mm or less.

It is a schematic diagram for demonstrating the principle of the heat exchange apparatus of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the simple type heat exchange apparatus concerning the 1st Example of this invention, and its usage example. It is a schematic diagram which shows the heat exchange apparatus concerning the 2nd Example of this invention. It is a schematic diagram which shows the temperature environment of the summer and winter in a 2nd Example, and the circulation direction of a liquid. It is a graph which shows the relationship between the heat flow rate in a pipe | tube, and a pipe diameter.

Explanation of symbols

11, 21, 31: 1st heat exchange part
12, 22, 32: second heat exchanging part 12a: hot water 12b: cold water 13: liquids 14, 24, 34: first circulation path 15, 25, 35: second circulation path 20: first embodiment Heat exchangers 23, 31b, 32b: capillary tube
26-29: Temporary storage unit 30: Heat exchange devices 31a, 31c, 32a, 32c according to the second embodiment: Temporary retention unit 41: Underground 42: Pesticide solution

Claims (13)

A heat exchange device comprising a first heat exchange section and a second heat exchange section, which are filled with a liquid serving as a heat exchange medium and connected by a liquid circulation path made of a highly heat-insulating material. There,
The first heat exchanging unit and the second heat exchanging unit are arranged at different locations in a temperature environment, and the first heat exchanging unit and the second heat exchanging unit are connected to the respective heat exchanging units. Install so that there is a height difference at the entrance and exit of the liquid ,
The first heat exchanging unit and the second heat exchanging unit include a plurality of thin tubes, and temporary storage units at upper and lower portions connected by upper and lower ends of the plural thin tubes,
The upper and lower temporary storage units are respectively connected to the liquid circulation path, and the liquid in the first and second heat exchange units moves in one direction due to temperature fluctuations in the external environment, respectively, A heat exchanging apparatus, wherein the liquid circulates in the liquid circulation path by natural convection . 2. The heat exchange device according to claim 1, wherein the plurality of thin tubes includes an outer thin tube and an inner thin tube, and the inner thin tube is narrower than the outer thin tube . The plurality of thin tubes are arranged in parallel on a plane, and the upper and lower temporary storage portions are temporary stay tubes in which upper ends and lower ends of the plurality of thin tubes are connected. The heat exchange apparatus as described. The heat exchange device according to any one of claims 1 to 3, wherein the plurality of thin tubes have a diameter that does not cause convection inside . The heat exchanger according to any one of claims 1 to 4, wherein the plurality of thin tubes are made of copper tubes having a tube diameter of 18 mm or less . The heat exchange apparatus according to claim 1 , wherein the plurality of thin tubes are made of a copper tube having a tube diameter of 5 mm or less . The first heat exchange part and the second heat exchange part are:
Constructed of a material having excellent thermal conductivity, and transferring the external thermal energy to the liquid through the material having excellent thermal conductivity to absorb heat, or dissipating the thermal energy of the liquid to the outside, thereby absorbing or releasing the heat. The heat exchange apparatus according to any one of claims 1 to 6, wherein the liquid is moved in one direction by convection due to a temperature difference of the liquid generated along with the heat. The first heat exchanging unit and the second heat exchanging unit are in contact with the liquid while maintaining the passage of the liquid so that the height difference from the inlet to the outlet of the exchanging unit changes in one direction. The heat exchange device according to claim 7 , wherein the heat exchange device is configured to increase a heat exchange area. 9. The heat exchange device according to claim 8 , wherein the first and second heat exchange units exchange heat by allowing the liquid to pass through a plurality of thin tubes made of a material having excellent heat conductivity. . The heat exchanger according to claim 9 , wherein the thin tube has a bowl-shaped unevenness on an outer surface and an inner surface. The heat exchanger according to claim 10 , wherein the thin tube includes a plurality of valleys and peaks that extend in a longitudinal direction. The heat exchange device according to any one of claims 1 to 11 , wherein the first heat exchange unit is installed in the atmosphere, and the second heat exchange unit is installed in the ground. Miniaturized said first and second heat exchanger, the circulation passage constituted of a flexible material, according to any one of claims 1 to 11, characterized in that it is transferred to the installation site Heat exchange equipment.

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