KR102622913B1 - Seasonal underground heat storage and heat dissipation device for road pavement - Google Patents

Abstract

In the present invention, heat storage heat pipes and heat dissipation heat pipes are buried in the ground of the road pavement in opposite directions, so that heat energy from the road pavement is transferred to the heat storage heat pipe in the summer and stored in the ground, and in winter, the heat energy of the road pavement is transferred to the heat storage heat pipe and stored in the ground. It relates to a seasonal underground heat storage and heat dissipation device for a road pavement that can prevent freezing of the road pavement by radiating heat to the road pavement through a pipe. The interphase underground heat storage and heat dissipation device for a road pavement according to the present invention is A casing buried in the ground below the body; A heat storage heat pipe accommodated inside the casing to absorb heat from the road pavement in the summer and transfer it to the lower side to store it; A heat dissipation heat pipe installed in parallel with the heat storage heat pipe inside the casing, and installed to move heat in a direction opposite to the heat storage heat pipe, to transfer heat upward in the winter and discharge it to the road pavement; And, a heat storage filler that is filled inside the casing to store heat transferred from the heat storage heat pipe and transfer the heat to the heat dissipation heat pipe.

Description

Seasonal underground heat storage and heat dissipation device for road pavement and road snow melting system using the same {Seasonal underground heat storage and heat dissipation device for road pavement}

The present invention relates to a seasonal underground heat storage and heat dissipation device for preventing freezing of road pavement, and more specifically, to bury heat pipes for heat storage and heat pipes for heat dissipation in the ground of the road pavement in opposite directions, A seasonal underground heat storage and heat dissipation device for road pavement that transfers the thermal energy of the pavement to the heat storage heat pipe to store heat in the ground, and radiates heat to the road pavement through the heat dissipation heat pipe in winter to prevent freezing of the road pavement. It's about.

Recently, accidents caused by thin ice (black ice) or freezing on roads have been occurring frequently. Over the past five years, the number of deaths in traffic accidents caused by thin road ice has reached approximately 200, and the fatality rate is more than 1.6 times higher than that of general collision accidents on average. Therefore, new technologies and new construction methods are needed to remove thin ice from roads. The Ministry of Land, Infrastructure and Transport announced measures to strengthen winter road traffic safety (January 7, 2020), doubling the number of ice-vulnerable management sections (193 → 403) and installing automatic salt water spray devices (235) and LED ice warning signs (approximately 4,900). It was decided to expand.

However, automatic salt water injection facilities using calcium chloride aqueous solution have the disadvantage of causing environmental pollution and reducing the durability of road facilities and vehicles, and the road hot wire burial method has the disadvantage of high construction and management costs (electricity bills, etc.).

Recently, a method of snowmelting roads using a ground source heat pump system has also been developed. The conventional ground source heat pump system absorbs heat of 10 to 15 degrees Celsius from an underground heat exchanger to produce hot water of about 30 to 45 degrees Celsius necessary for snow melting, and transports the hot water using a fluid pipe to melt snow on the road. It was applied to Oslo International Airport in Norway and Calgary Alberta International Airport in Canada.

This conventional ground source heat pump system has a complicated configuration and has the disadvantage of requiring large power consumption when driving the heat pump. Therefore, technology is needed to effectively prevent accidents caused by thin road ice.

In addition, as a technology to prevent thin ice (black ice) on roads during the winter, there is a method of using unused energy (heat storage in road pavement) and new renewable energy (heat storage in the ground). This method absorbs solar heat accumulated in the road pavement in the summer, stores it in the ground, and radiates heat back to the road pavement in the winter, thereby maintaining the road surface temperature at zero at all times, thereby preventing the formation of thin road ice in areas with regular icing.

However, this unused energy Alternatively, the conventional technology using new and renewable energy uses geothermal energy to prevent road ice, which uses seasonal heat storage without using a heat pump to raise the ground temperature. However, a circulation pump must be used to circulate the heat medium, so additional power is required. There are problems that involve consumption, are complex in composition, and have low economic feasibility.

Republic of Korea Patent No. 10-1220521 (registered on January 3, 2013) Republic of Korea Patent Publication No. 10-2009-0099392 (published on September 22, 2009) Japan Registered Utility Model No. 3206700 (registered on 2016.09.07.) Japanese Patent No. 2849699 (registered on March 4, 2004) Japanese Registered Patent No. 2768212 (registered on April 10, 1998)

The present invention is intended to solve the above-described conventional problems, and the purpose of the present invention is to effectively prevent freezing of road pavement in winter without using separate power consumption by using heat pipes, and to simplify the configuration to achieve economic efficiency. and to provide a seasonal underground heat storage and heat dissipation device for road pavement that can improve constructability, and a road snow melting system using the same.

In order to achieve the above object, an underground heat storage and heat dissipation device for a road pavement body according to an aspect of the present invention includes a casing buried in the ground below the road pavement body; A heat storage heat pipe accommodated inside the casing to absorb heat from the road pavement in the summer and transfer it to the lower side to store it; A heat dissipation heat pipe installed in parallel with the heat storage heat pipe inside the casing, and installed to move heat in a direction opposite to the heat storage heat pipe, to transfer heat upward in the winter and discharge it to the road pavement; And, a heat storage filler that is filled inside the casing to store heat transferred from the heat storage heat pipe and transfer the heat to the heat dissipation heat pipe.

The thermal storage filler may be made of grout mixed with cement and water.

An underground underground heat storage and heat dissipation device according to another form of the present invention is installed between the upper end of the casing and the road pavement to allow heat transfer between the road pavement and the heat storage heat pipe, and the road pavement and the heat dissipation heat pipe. It may further include a heat diffusion member made of a heat conductive material.

The seasonal underground heat storage and heat dissipation device according to another form of the present invention is horizontally coupled to the ground on the side of the heat diffusion member, and is an auxiliary heat storage device that absorbs heat from the road pavement in the summer and transfers it to the ground. It may further include a heat pipe and an auxiliary heat dissipation heat pipe that transfers heat from the ground to the road pavement in winter.

A plurality of female screw holes are formed on the lower surface of the heat diffusion member, into which the ends of the heat storage heat pipe and the heat dissipation heat pipe are spirally coupled, and the ends of the auxiliary heat storage heat pipe and the auxiliary heat dissipation heat pipe are spirally coupled to the side of the heat diffusion member. A plurality of female screw holes may be formed.

Each of the heat storage heat pipes and the heat dissipation heat pipes may be installed in a plurality arranged vertically in a row.

An underground underground heat storage and heat dissipation device according to another form of the present invention is connected between a plurality of heat storage heat pipes arranged in a line up and down and a plurality of heat dissipation heat pipes arranged in a line up and down. It may further include a heat transfer connector made of a thermally conductive material that allows heat transfer to occur between the heat storage heat pipe and the heat dissipation heat pipe.

The heat transfer connector may include a first heat transfer connector coupled between a plurality of heat storage heat pipes arranged in a vertical line, and a second heat transfer connector coupled between a plurality of heat dissipation heat pipes arranged in a vertical line. .

In addition, a female screw hole may be formed on the upper and lower surfaces of the heat transfer connector with a screw thread formed on the inner circumferential surface of the end of the heat storage heat pipe and the end of the heat dissipation heat pipe.

A coupling groove is formed on the upper and lower surfaces of the heat transfer connector into which the end of the heat storage heat pipe and the end of the heat dissipation heat pipe are inserted, and the end of the heat storage heat pipe and the end of the heat dissipation heat pipe are formed on the inner peripheral surface of the coupling groove. A locking groove into which the protruding locking protrusion is inserted may be formed.

A seasonal underground heat storage and heat dissipation device according to another form of the present invention includes a temperature sensor that measures the temperature of the ground near the casing, a heat storage state by a heat storage heat pipe according to temperature information transmitted by the temperature sensor, and It may further include a monitoring unit that monitors the state of heat dissipation by the heat dissipation heat pipe.

The underground underground heat storage and heat dissipation device according to another aspect of the present invention may further include a partition wall installed to cross between the heat storage heat pipe and the heat dissipation heat pipe.

The casing may be made of a thermally conductive metal material.

In the road snow melting system according to the present invention, the plurality of seasonal underground heat storage and heat dissipation devices described above are arranged at predetermined intervals in the ground below the road pavement.

The plurality of seasonal underground heat storage and heat dissipation devices are accommodated inside a heat insulating chamber buried in the ground, and the inside of the heat insulating chamber may be filled with a filler material.

According to the present invention, a heat storage heat pipe and a heat dissipation heat pipe through which heat is transferred in a direction opposite to the heat storage heat pipe are accommodated inside a casing together with a heat storage filler, and the heat energy of the road pavement is transferred to the heat storage heat pipe in the summer. It is possible to prevent freezing of the road pavement by storing heat in the ground and dissipating the heat stored in the ground in the winter to the road pavement through a heat dissipation heat pipe.

Therefore, road snowmelt and ice prevention functions can be performed without using power devices such as heat pumps or circulation pumps, so the configuration can be simplified, power consumption can be minimized, and maintenance can be minimized. . In particular, it can be usefully applied to mountainous areas where electric power devices are not available.

In addition, since the temperature of the road pavement can be kept constant at all times, improved durability of the road pavement can be expected.

Figure 1 is a diagram showing a road snow melting system to which a seasonal underground heat storage and heat dissipation device for road pavement is applied according to an embodiment of the present invention.
Figure 2 is a longitudinal cross-sectional view showing the configuration of an underground heat storage and heat dissipation device for a road pavement body according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view showing the configuration of the underground heat storage and heat dissipation device shown in FIG. 2.
Figure 4 is a longitudinal cross-sectional view showing the configuration of an underground heat storage and heat dissipation device for a road pavement body according to another embodiment of the present invention.
Figure 5 is a longitudinal cross-sectional view showing the configuration of an underground heat storage and heat dissipation device for a road pavement body according to another embodiment of the present invention.
FIG. 6 is a cross-sectional view showing the configuration of the underground heat storage and heat dissipation device shown in FIG. 5.
Figure 7 is a cross-sectional view showing the configuration of an underground heat storage and heat dissipation device for a road pavement body according to another embodiment of the present invention.
Figure 8 is a cross-sectional view showing the configuration of an underground heat storage and heat dissipation device for a road pavement body according to another embodiment of the present invention.
Figure 9 is a longitudinal cross-sectional view showing the configuration of an underground heat storage and heat dissipation device for a road pavement body according to another embodiment of the present invention.
FIG. 10 is a cross-sectional view of the seasonal underground heat storage and heat dissipation device shown in FIG. 9.
Figure 11 is a longitudinal cross-sectional view showing the configuration of an underground heat storage and heat dissipation device for a road pavement body according to another embodiment of the present invention.
FIG. 12 is a cross-sectional view of a portion of the underground heat storage and heat dissipation device shown in FIG. 11.
FIG. 13 is a main sectional view showing a modification of a part of the configuration of the underground heat storage and heat dissipation device shown in FIG. 11.
Figure 14 is a diagram showing another embodiment of the road snow melting system according to the present invention.

With reference to the attached drawings, the seasonal underground heat storage and heat dissipation device for road pavement and a road snow melting system using the same according to embodiments of the present invention will be described in detail. Since the present invention can be subject to various changes and can have various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components. In the attached drawings, the dimensions of the structures are enlarged from the actual size for clarity of the present invention, or reduced from the actual size to understand the schematic configuration.

Additionally, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. Meanwhile, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

The seasonal underground heat storage and heat dissipation device for the road pavement of the present invention transfers the thermal energy of the road pavement to a heat storage heat pipe in the summer to store heat, and radiates the stored heat to the road pavement through the heat dissipation heat pipe in the winter to pave the road. It is designed to prevent freezing of the body, and is designed to store underground heat and dissipate heat throughout the season using the heat transfer mechanism of the heat pipe without using a separate power device such as a heat pump or circulation pump.

Referring to FIGS. 1 to 3, the seasonal underground heat storage and heat dissipation device 100 of the road pavement body according to an embodiment of the present invention includes a casing 110 buried in the ground below the road pavement body (R), A heat storage heat pipe 120 and a heat dissipation heat pipe 130 accommodated inside the casing 110, a heat storage filler 140 filled inside the casing 110, and a heat diffusion member installed at the upper end of the casing 110 ( 150) may be included.

The casing 110 is in the form of a hollow tube or enclosure and is buried in the ground below the road pavement (R). The casing 110 may be made of a thermally conductive metal material to enable heat transfer to the ground.

The heat storage heat pipe 120 and the heat dissipation heat pipe 130 are installed to be accommodated together inside the casing 110, and can be configured by applying a known heat pipe.

The thermal storage heat pipe 120 is installed to extend in the vertical direction inside the casing 110, and is configured to absorb heat from the road pavement (R) in the summer and transfer it to the lower side to store it. A working fluid that transfers heat downward is stored inside the heat storage heat pipe 120, and the upper part is installed to be an evaporation part that absorbs heat and evaporates, and the lower part is a condensation part that emits heat.

The heat dissipation heat pipe 130 is installed side by side on one side of the heat storage heat pipe 120, and is installed to move heat in the opposite direction to the heat storage heat pipe 120, thereby transferring heat upward in the winter to the road pavement (R). ) has the function of emitting. That is, the heat dissipation heat pipe 130 is installed in a direction opposite to the heat storage heat pipe 120 to transfer heat in the opposite direction to the heat storage heat pipe 120. Therefore, the lower part of the heat dissipation heat pipe 130 becomes an evaporation part that absorbs heat and evaporates it, and the upper part becomes a condensation part that emits heat.

A plurality of heat storage heat pipes 120 and heat dissipation heat pipes 130 may be arranged laterally at a certain distance apart within the casing 110 .

In addition, the heat storage heat pipe 120 and the heat dissipation heat pipe 130 may be arranged in a single layer inside the casing 110 as shown in FIG. 2, but as in the embodiment shown in FIG. 4, the heat storage heat pipe 120 ) and each of the heat dissipation heat pipes 130 may be installed in a plurality arranged in a row up and down.

At this time, between the plurality of thermal storage heat pipes 120 arranged in a row up and down, a first heat transfer connector 161 made of a thermally conductive material transfers heat from the upper thermal storage heat pipe 120 to the lower thermal storage heat pipe 120. ) can be installed.

In addition, between the plurality of heat dissipation heat pipes 130 arranged in a row up and down, there is a second heat transfer connector 162 made of a thermally conductive material that transfers heat from the lower heat dissipation heat pipe 130 to the upper heat dissipation heat pipe 130. can be installed.

The first heat transfer connector 161 and the second heat transfer connector 162 may be made of a heat conductive metal material such as aluminum or stainless steel. In addition, an insertion hole 161a through which the end of the heat storage heat pipe 120 and the end of the heat dissipation heat pipe 130 can be inserted is provided at the upper and lower portions of each of the first heat transfer connector 161 and the second heat transfer connector 162. 162a) may be formed to be open up and down, and the space between the upper insertion holes 161a and 162a and the lower insertion holes 161a and 162a may be shielded by partition walls 161b and 162b.

In this way, by connecting a plurality of heat storage heat pipes 120 and heat dissipation heat pipes 130 in series vertically, heat storage and heat dissipation performance can be significantly improved in a given area.

The first heat transfer connector 161 and the second heat transfer connector 162 may be installed separately, but may also be formed as an integrated unit.

The heat storage filler 140 filled inside the casing 110 supports the heat storage heat pipe 120 and the heat dissipation heat pipe 130 inside the casing 110, and also supports the heat discharged from the lower part of the heat storage heat pipe 120. It is designed to have a heat storage function to store and transfer to the lower part of the heat dissipation heat pipe 130, and a grout mixed with cement and water can be applied. In addition, heat storage performance can be further improved by adding heat storage particles to the heat storage filler 140, which are formed by enclosing a phase change material that absorbs and releases latent heat in response to temperature changes on the outside of silica gel or carbon particles.

The heat diffusion member 150 is installed between the upper part of the casing 110 and the road pavement (R) and forms a road pavement body (R) and a heat storage heat pipe 120, a road pavement body (R) and a heat dissipation heat pipe 130. It functions to ensure smoother heat transfer between the liver. The heat diffusion member 150 may be made of a metal material such as aluminum with good thermal conductivity, and may have a flat plate shape and be placed adjacent to the immediate bottom of the road pavement (R). A groove 151 in which the upper ends of the heat storage heat pipe 120 and the heat dissipation heat pipe 130 are inserted and coupled may be formed concave upward on the lower surface of the heat diffusion member 150. At this time, heat is diffused inside the groove 151 to prevent the vehicle load from being directly transmitted to the heat storage heat pipe 120 and the heat dissipation heat pipe 130 through the road pavement (R) and the heat diffusion member 150. An elastic member 152 made of a thermally conductive and elastic material that elastically supports the upper ends of the heat storage heat pipe 120 and the heat dissipation heat pipe 130 may be additionally installed on the member 150.

In this way, the heat diffusion member 150 made of a thermally conductive material is installed adjacent to the upper part of the heat storage heat pipe 120 and the heat dissipation heat pipe 130 at the upper part of the casing 110, thereby reducing the heat of the road pavement (R) in the summer. It is transmitted more smoothly to the heat storage heat pipe 120, and in the winter, the heat from the heat dissipation heat pipe 130 is cut more smoothly across a large area of the road pavement (R), thereby further improving anti-icing performance.

Meanwhile, since the heat storage heat pipe 120, the heat dissipation heat pipe 130, and the heat storage filler 140 are installed together inside the casing 110, the heat of the heat storage heat pipe 120 is transmitted to the side through the heat storage filler 140. In order to prevent the heat from being transmitted directly to the adjacent heat dissipation heat pipe 130, the heat is spaced across the upper part between the heat storage heat pipe 120 and the heat dissipation heat pipe 130 as in the embodiment shown in FIGS. 5 and 6. The wall 170 can be installed. The partition wall 170 may be installed at a length that leaves the lower part between the heat storage heat pipe 120 and the heat dissipation heat pipe 130 open so as not to completely shield the space between the heat storage heat pipe 120 and the heat dissipation heat pipe 130. .

A plurality of seasonal underground heat storage and heat dissipation devices 100 having the same configuration as described above are buried in the ground below the road pavement R at predetermined intervals, so that the plurality of seasonal underground heat storage and heat dissipation devices 100 are installed in the summer. By accumulating heat through the heat storage heat pipe 120 and dissipating heat through the heat dissipation heat pipes 130 of the plurality of seasonal underground heat storage and heat dissipation devices 100 in the winter, freezing occurs in a certain area of the road pavement (R). A road snow melting system can be constructed to prevent snow melting.

At this time, a plurality of intertemporal underground heat storage and heat dissipation devices 100 may share a single heat diffusion member 150.

The operation of the road snow melting system using the above-described underground heat storage and heat dissipation device 100 is explained as follows.

In the summer, when the outdoor temperature is approximately 25 to 35 ℃, the surface temperature of the road pavement (R) is approximately 30 to 45 ℃, and the internal temperature of the road pavement (R) is approximately 28 ℃.

Heat from the road pavement (R) moves downward through the heat storage heat pipe 120 and is stored in the heat storage filler 140 in the casing 110 and in the ground. At this time, the heat stored in the thermal storage filler 140 and the ground is maintained at a predetermined temperature in the ground until winter, although there is some heat loss.

The heat stored in the thermal storage filler 140 and the ground moves upward through the lower part of the heat dissipation heat pipe 130 in the winter and is transferred to the road pavement (R) through the heat diffusion member 150, and the road pavement (R) Freezing can be prevented by maintaining the temperature at approximately 5~10℃.

The heat storage and heat dissipation status of the seasonal underground heat storage and heat dissipation device 100 is monitored externally to check for failure of the heat storage heat pipe 120 and the heat dissipation heat pipe 130 of the intermittent underground heat storage and heat dissipation device 100, and to prevent and prevent freezing. In order to predict snow melting performance, a temperature sensor 181 measures the temperature of the ground near the casing 110, and heat storage is performed by a heat storage heat pipe 120 according to the temperature information transmitted by the temperature sensor 181. A monitoring unit 182 that monitors the state and heat dissipation state by the heat dissipation heat pipe 130 may be additionally installed. The monitoring unit 182 may be equipped with a communication module capable of transmitting monitoring information to an external control server or the manager's mobile communication terminal.

A plurality of the temperature sensors 181 may be installed at intervals on the upper and lower surfaces of the casing 110, and may monitor the heat storage state by the heat storage heat pipe 120 and the heat dissipation state by the heat dissipation heat pipe 130. It can be installed on the outer surface of the casing 110 adjacent to the heat storage heat pipe 120 and the heat dissipation heat pipe 130 so that it can be accurately checked.

The underground underground heat storage and heat dissipation device 100 of the present invention includes a heat storage heat pipe 120, a heat dissipation heat pipe 130 through which heat is transferred in the opposite direction to the heat storage heat pipe 120, and a heat storage filler 140. Together, they are housed inside the casing 110, and in the summer, the thermal energy of the road pavement (R) is transferred to the heat storage heat pipe 120 to store heat in the ground, and in the winter, the heat stored in the ground is transferred to the road pavement through the heat dissipation heat pipe. By dissipating heat through (R), freezing of the road pavement (R) can be prevented.

Therefore, since road snowmelt and ice prevention functions can be performed without using a power device such as a heat pump or circulation pump, the configuration can be simplified and power consumption can be minimized.

In the above-described embodiment, two heat storage heat pipes 120 and two heat dissipation heat pipes 130 are arranged at regular intervals along the circumferential direction of the casing 110, but as shown in FIG. 7, the heat storage heat pipes 120 and the heat dissipation heat pipes 130 are arranged at regular intervals. Starting from , it may be divided into a plurality of regions, and a plurality of heat storage heat pipes 120 and a heat dissipation heat pipe 130 may be arranged in each region.

Alternatively, as shown in FIG. 8, a heat storage heat pipe 120 is placed in the center of the casing 110, and a plurality of heat dissipation heat pipes 130 are arranged at regular intervals around the casing 110 to form an underground heat storage and heat dissipation device 100. ) could also be configured.

9 and 10 show an underground heat storage and heat dissipation device 100 according to another embodiment of the present invention. The interstitial underground heat storage and heat dissipation device 100 of this embodiment has a heat storage heat pipe inside the casing 110. (120) and the heat dissipation heat pipe 130 are inserted and installed, and are completely buried by the heat storage filler 140 filled inside the casing 110, and a heat diffusion member 150 is provided at the upper end of the casing 110 to store the heat. It is similar to the above-described embodiment in that it is configured to be combined with the heat pipe 120 and the heat dissipation heat pipe 130.

However, in the underground underground heat storage and heat dissipation device 100 of this embodiment, a plurality of auxiliary heat storage heat pipes 125 and auxiliary heat dissipation heat pipes 135 are coupled to the side of the heat diffusion member 150 substantially horizontally with respect to the ground. It differs from the above-described embodiments in that it is configured to additionally perform underground heat storage and heat dissipation functions of the road pavement (R).

Here, the heat diffusion member 150 may have a polygonal shape such as an octagon, hexagon, or square, or various shapes such as a disk shape or an oval. The auxiliary heat storage heat pipe 125 and the auxiliary heat dissipation heat are installed on the side of the heat diffusion member 150. A female thread hole 155 through which the pipe 135 can be threaded and spirally coupled may be formed. At the ends of the auxiliary heat storage heat pipe 125 and the auxiliary heat dissipation heat pipe 135, threads that can be helically coupled to the female screw hole 155 are formed.

Additionally, a lower female screw hole 156 may be formed on the lower surface of the heat diffusion member 150 so that the heat storage heat pipe 120 and the heat dissipation heat pipe 130 can be threaded and screwed together. In this case, threads that are helically coupled to the female screw hole 156 may be formed on the upper ends of the heat storage heat pipe 120 and the heat dissipation heat pipe 130.

When the female screw holes 155 and 156 are formed in the heat diffusion member 150 in this way, the heat storage heat pipe 120 and the heat dissipation heat pipe 130, and/or the auxiliary heat storage heat pipe 125 and the auxiliary heat dissipation heat pipe 135 ) can be easily coupled to the heat diffusion member 150 using a screw coupling method to improve constructability.

Of course, the heat storage heat pipe 120 and the heat dissipation heat pipe 130, and/or the auxiliary heat storage heat pipe 125 and the auxiliary heat dissipation heat pipe 135 are screwed together using female screw holes 155 and 156 and screw threads. It may also be coupled to the heat diffusion member 150 by a protrusion coupling method (see FIG. 13), a coupling method using a separate fastening member, or a welding method.

The plurality of auxiliary heat storage heat pipes 125 and auxiliary heat dissipation heat pipes 135, like the heat storage heat pipe 120 and heat dissipation heat pipe 130, will be buried inside a separate casing 110 and heat storage filler 140. However, it may simply be buried in the ground beneath the road pavement (R). A plurality of auxiliary heat storage heat pipes 125 and auxiliary heat dissipation heat pipes 135 are buried in the ground approximately horizontally with respect to the ground, thereby further improving heat storage performance in the summer along with the heat storage heat pipes 120 and heat dissipation heat pipes 130. It provides the advantage of further increasing heat dissipation performance in the winter.

FIGS. 11 and 12 show modified embodiments of the underground heat storage and heat dissipation device 100 shown in FIG. 4. In the embodiment shown in FIG. 4, the first heat transfer connector 161 is installed between a plurality of heat storage heat pipes 120 arranged in a vertical line, and between a plurality of heat dissipation heat pipes 130 arranged in a vertical line. The second heat transfer connector 162 is installed, and the first heat transfer connector 161 and the second heat transfer connector 162 are composed of individual bodies, but in this embodiment, a plurality of heat storage heat pipes 120 are arranged in a row up and down. ) and a plurality of heat dissipation heat pipes 130 arranged in a row up and down are coupled together to a single heat transfer connector 160.

The heat transfer connector 160 may be made of a metal material with excellent thermal conductivity, such as aluminum. In addition, a plurality of female threaded holes 167 with threads formed on the inner peripheral surface are formed on each of the upper and lower surfaces of the heat transfer connector 160, and the female threaded holes are formed at the ends of the heat storage heat pipe 120 and the heat dissipation heat pipe 130. By forming a screw thread that is helically coupled to the screw thread of (167), the heat storage heat pipe 120 and the heat dissipation heat pipe 130 may be coupled to the heat transfer connector 160 by a screw coupling method.

Of course, differently from this, as shown in FIG. 13, a plurality of coupling grooves 164 with locking grooves 165 formed on the inner peripheral surface are formed on the upper and lower surfaces of the heat transfer connector 160, and the heat storage heat pipe 120 and heat dissipation are formed. At the end of the heat pipe 130, a locking protrusion 166 that is elastically coupled to the locking groove 165 is formed to protrude from the inside of the coupling groove 164, so that the locking protrusion 166 is connected to the locking groove 165 and the locking protrusion 166. The heat storage heat pipe 120 and the heat dissipation heat pipe 130 may be easily coupled to the heat transfer connector 160 by using a protrusion coupling method.

Alternatively, the heat storage heat pipe 120 and the heat dissipation heat pipe 130 are transferred by combining the protrusion coupling method using the locking groove 165 and the locking protrusion 166 described above and the screw coupling method between the female screw hole 167 and the screw thread. It may also be coupled to the connector 160.

Meanwhile, the plurality of underground heat storage and heat dissipation devices 100 may simply be buried in the ground, but in order to minimize the influence of groundwater or the movement of heat to the outside, a plurality of underground heat storage and heat dissipation devices 100 may be installed, such as the road snow melting system shown in FIG. 14. The seasonal underground heat storage and heat dissipation device 100 is accommodated inside a heat shield chamber 200 made of an insulating material buried in the ground, and the inside of the heat shield chamber 200 may be filled with a filler 210.

The heat shield chamber 200 may be made of concrete or a metal material with an insulation material 201 installed on its inner surface, or the heat shield chamber 200 itself may be made of an insulation material.

Additionally, the filler 210 may be made of soil or grout.

Although the detailed description of the present invention described above has been described with reference to preferred embodiments of the present invention, those skilled in the art or those skilled in the art will understand the spirit of the present invention as described in the patent claims to be described later. It will be understood that the present invention can be modified and changed in various ways without departing from the technical scope.

R: Road pavement body 100: Quarterly underground heat storage and heat dissipation device
110: Casing 120: Heat storage heat pipe
125: Auxiliary heat storage heat pipe 130: Heat dissipation heat pipe
135: Auxiliary heat dissipation heat pipe 140: Heat storage filler
150: heat diffusion member 151: groove
152: elastic member 155, 156: female screw hole
160: heat transfer connector 161: first heat transfer connector
162: second heat transfer connector 164: coupling groove
165: Locking groove 166: Locking protrusion
167: female screw hole 170: partition wall
181: temperature sensor 182: monitoring unit
200: heat shield chamber 201: insulation material
210: Filling material

Claims (14)

A casing buried in the ground below the road pavement;
A heat storage heat pipe accommodated inside the casing to absorb heat from the road pavement in the summer and transfer it to the lower side to store it;
A heat dissipation heat pipe installed in parallel with the heat storage heat pipe inside the casing, and installed to move heat in a direction opposite to the heat storage heat pipe, to transfer heat upward in the winter and discharge it to the road pavement; and,
A heat storage filler that is filled inside the casing to store heat transferred from the heat storage heat pipe and transfer the heat to the heat dissipation heat pipe;
Including,
Each of the heat storage heat pipes and the heat dissipation heat pipes is installed in a plurality arranged vertically in a row,
A heat transfer connector made of a thermally conductive material is connected between a plurality of heat storage heat pipes arranged in a line up and down and a plurality of heat dissipation heat pipes arranged in a line up and down to transfer heat between a plurality of heat storage heat pipes and heat dissipation heat pipes arranged in a vertical line. The underground heat storage and heat dissipation device of the road pavement that allows this to happen. The device of claim 1, wherein the heat storage filler is a grout mixed with cement and water. The road according to claim 1, further comprising a heat diffusion member made of a thermally conductive material installed between the upper end of the casing and the road pavement to enable heat transfer between the road pavement and the heat storage heat pipe, and the road pavement and the heat dissipation heat pipe. Seasonal underground heat storage and heat dissipation device for pavements. The method of claim 3, wherein an auxiliary heat storage heat pipe is horizontally coupled to the ground on a side of the heat diffusion member, absorbs heat from the road pavement in the summer and transfers it to the ground, and transfers heat from the ground to the road in the winter. An underground heat storage and heat dissipation device for road pavement, further comprising an auxiliary heat dissipation heat pipe that transmits heat to the pavement. The method of claim 4, wherein a plurality of female screw holes are formed on the lower surface of the heat diffusion member to which the ends of the heat storage heat pipe and the heat dissipation heat pipe are spirally coupled, and the auxiliary heat storage heat pipe and the auxiliary heat dissipation heat pipe are formed on the side of the heat diffusion member. An underground heat storage and heat dissipation device for road pavements formed with a plurality of female screw holes whose ends are spirally joined. delete delete The method of claim 1, wherein the heat transfer connector is a first heat transfer connector coupled between a plurality of heat storage heat pipes arranged in a vertical line, and a second heat transfer connector coupled between a plurality of heat dissipation heat pipes arranged in a vertical line. Intermediate underground heat storage and heat dissipation device for road pavement including connectors. According to claim 1, wherein the upper and lower surfaces of the heat transfer connector have a female threaded hole formed on the inner circumferential surface of the heat storage heat pipe and the end of the heat dissipation heat pipe in a spiral connection. Device. The method of claim 1, wherein a coupling groove is formed on the upper and lower surfaces of the heat transfer connector into which the end of the heat storage heat pipe and the end of the heat dissipation heat pipe are inserted, and the end of the heat storage heat pipe and the end of the heat dissipation heat pipe are formed on the inner peripheral surface of the coupling groove. An underground heat storage and heat dissipation device for road pavement with a locking groove into which a locking protrusion protruding from the end of a heat pipe is inserted. The method of claim 1, wherein a temperature sensor measures the temperature of the ground near the casing, and a monitoring device monitors the heat storage state by the heat storage heat pipe and the heat dissipation state by the heat dissipation heat pipe according to the temperature information transmitted by the temperature sensor. An underground heat storage and heat dissipation device for road pavement further comprising: The underground heat storage and heat dissipation device of claim 1, wherein the casing is made of a thermally conductive metal material. A road snow melting system in which a plurality of seasonal underground heat storage and heat dissipation devices according to claim 1 are arranged at predetermined intervals in the ground below the road pavement. The road snow melting system according to claim 13, wherein the plurality of seasonal underground heat storage and heat dissipation devices are accommodated inside a heat-insulating chamber buried in the ground, and the inside of the heat-shielding chamber is filled with a filler material.

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