JPS59192869A - Temperature difference electric power generating device utilizing road - Google Patents

Abstract

PURPOSE:To restrict deformation of the road surface due to the temperature rise thereof as well as accumulation of snow on the road by generating an electric power by the temperature difference between the surface of the road and groundwater. CONSTITUTION:In summer, heat medium, flowing through a heat transfer tube 103 buried in the road 101, effects heat exchange between the road 101, and the temperature thereof is increased to an extent to vaporize it while the pressure thereof becomes high and thereby rotating a turbine 107. A generator 109 generates electric power by the rotation of the turbine 107. The heat medium, which has driven the turbine 107, effects heat exchange in a groundwater reserving tank 106 between the groundwater 105 and is cooled, thereafter, flows again through the heat transfer tube 103 in the road 101. Accordingly, the road 101 is cooled by the heat exchange between the heat medium and the temperature rise thereof is restricted. In winter, the road 101 is heated by the temperature difference electric power generation and accumulation of snow on the road may be restricted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a road-use temperature difference power generation device that generates power by utilizing the temperature difference between the surface of a road and groundwater.

For example, as shown in Figure 1, the surface of a road 1 hardened with asphalt or concrete becomes abnormally high in summer due to the frictional heat between the tires of a car 2 and the road 1 and the heat of the sun, sometimes exceeding 60 degrees Celsius. There is also. When the surface reaches an abnormally high temperature as described above, asphalt and the like become soft and the road 1 becomes deformed.

Further, as shown in FIG. 2, there is a problem that in winter, especially in snowy areas, snow piles up on the road 1 and obstructs traffic.

The present invention has been made based on the above-mentioned points.
The key point is that it generates electricity using the temperature difference between the surface of the road and the groundwater, thereby suppressing, for example, the rise in temperature of the road in the summer, the resulting deformation, and the accumulation of snow on the road surface in the winter. An object of the present invention is to provide a road-use temperature difference power generation device that can effectively utilize the electricity generated.

That is, the road-use temperature difference power generation device according to the present invention includes a heat medium circulation system in which a heat medium flows and a part of which is embedded in the road, and an underground water system in which ground water flows, and the temperature difference between the road surface and the ground water is It is configured to generate electricity based on the difference.

That is, in the summer, the surface of the road is hotter than the groundwater, and in the winter, the opposite is true.

By using this temperature difference to generate electricity, it is possible to remove heat from the road in the summer and heat it up in the winter.For example, it is possible to suppress road deformation during υ1 (summer) and snowfall in the winter. Moreover, the electricity obtained by power generation can be effectively used, for example, as a source for indicator lights.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 3 and 4. Figure 3 shows the case in summer, and Figure 4 shows the case in winter. Reference numeral 101 in FIG. 3 indicates the road on which the car 102 travels. Further, reference numeral 103 indicates a heat transfer tube as a heat medium circulation system through which a heat medium flows, and a part of this heat transfer tube 103 is embedded in the road 10, and the other part is underground water through which groundwater 105 flows. The system 104 is located in a groundwater storage tank 106 . A turbine 107 and a circulation pump 108 are inserted into the heat transfer tube 103, and a generator 109 is connected to the turbine 107Vc.

Groundwater flows into the groundwater storage tank 106 g77.

and a groundwater outflow pipe 11 are connected, and pumps 112 and 113 are inserted, respectively.

According to the above configuration, in summer, the road 10 is heated by solar heat or frictional heat between the tires of the car 102 and the road 10.
1 becomes a high temperature, and when the temperature on the road 101 is TP-T, and the temperature of the groundwater 105 is Tw, the relationship is Tg)TV. The heat medium flowing through the heat transfer tubes 103 embedded in the trench road 101 exchanges heat with the road 101, heats up, vaporizes, becomes high pressure, and rotates the turbine 107f.

The power generation mode 109 generates power by 0 rotations of Tahif 10F.

The heat medium that has driven the turbine 107 exchanges heat with the groundwater 105 in the groundwater storage tank 106 and then flows through the heat transfer tubes 103 in the road 101 again. That is, the heat exchanger tube 1 embedded in the road 101 and the road 10
03 functions as a boiler, and the groundwater storage tank 106 and the heat transfer tubes 103 disposed within the groundwater storage tank 106 function as a condenser. This cycle is then repeated.

Therefore, the road 101 is cooled by heat exchange with the heat medium, and the temperature rise is suppressed, so that it does not deform as in the conventional case. Further, the electricity obtained by the generator 109 is effectively used, for example, as a power source for indicator lights on the road 101.

Next, the winter season will be explained. In the winter season, as shown in Fig. 4, the configuration is the same as in the summer season shown in Fig. 3, and the relationship between the temperature 191TR on the road 101 and the temperature Tw of the groundwater 105 is opposite to that in the summer season. , TRUTw.

First, when the heat medium flows through the heat transfer tubes 103 in the groundwater storage tank 106, it exchanges heat with the groundwater 105 and heats up, causing the turbine 1
Rotate 07q. The rotation of the turbine 107 causes the generator 109 to generate electricity. Is the heat medium that drives the turbine 107 the heat transfer tube 103 inside the road 101? During distribution, it is cooled by heat exchange with the low-temperature road 101 and then returned to the underground water storage tank 10.
The heat exchanger tubes 103 in the heat exchanger tubes 103 and 103 in the heat exchanger tubes 103 in the heat exchanger tubes 103 in That is, contrary to the summer season, the groundwater storage tank 1θ6 and the heat transfer tubes 103 installed in the groundwater storage tank 106 function as a boiler, and the road 10
1 and the heat exchanger tubes 103 embedded in the road 101 function as a condenser. Thereafter, this cycle is repeated. Therefore, by heating the road 10 which is in a low temperature state, contrary to the case in the summer described above, it is possible to suppress the ramming onto the road 101. Also, the generator 109
The electricity obtained can be used effectively as in the summer.

Next, another embodiment will be described with reference to FIGS. 5 and 6. That is, this embodiment has a configuration in which a secondary heat medium such as water is interposed between the heat medium of the previous embodiment and the underground water system.

In the figure, 114 indicates a heat transfer tube through which water as a secondary heat medium flows, a part of this heat transfer tube 114 is arranged in a heat medium storage +M117 through which a heat medium 116 flows, and the other part is It is arranged in a groundwater storage tank 106 through which groundwater 1'05 flows. In addition, the turbine 107
is inserted. It should be noted that the same parts as in the above embodiment are denoted by the same reference numerals, and the same reference numerals are omitted for the same constituent parts.

According to the above configuration, in the y period, as shown in FIG.
When flowing through the heat medium storage tank 117 , the heat exchanges heat with the high temperature road 101 , vaporizes the temperature, and flows into the heat medium storage tank 117 . There, the heat exchanger is cooled by exchanging heat with the water flowing inside the heat transfer tube 114.

- Power water is heated and vaporized to rotate the turbine 107%.

The rotation of the turbine 107 generates electricity. The water that drove the starter 109 exchanges heat with the groundwater 105 and is cooled as it flows through the heat transfer tubes 114 disposed in the groundwater storage tank 106. That is, the heat medium storage tank 117 and the heat transfer tubes 114 installed in the heat medium storage tank 117 function as a boiler, and the heat transfer tubes 114 installed in the groundwater storage @Ho6 and the groundwater storage tank 106 function as a condenser. Each of them fulfills the following. This cycle is then repeated.

(Kani □ 4. Hey, yu, yo, ka... □ When flowing through the heat exchanger tube 114 arranged in the □ 106, it exchanges heat with the groundwater 105, heats up and vaporizes, and rotates the turbine 107. The generator 109 generates electricity when the turbine 10 rotates 0 times. The water caused by the turbine 107 is cooled by exchanging heat with the heat medium 116 as it flows through the heat transfer tubes 114 disposed in the heat medium storage tank 117. On the other hand, the heated heat medium 116 is cooled by exchanging heat with the road 101 which is in a low temperature state when flowing through the heat transfer tube 103 disposed inside the road 101.
is heated. In other words, contrary to the summer season, the underground water storage tank 10
6 and the heat transfer inertia 114 disposed therein function as a boiler, and the heat medium storage tank 117 and the heat transfer tubes 114 disposed therein function as a condenser.

Therefore, in the summer, the road 1011 can be cooled to prevent deformation, etc., and in the winter, the road 101 can be heated to suppress snow accumulation, and the generator 1 can be used in both summer and winter.
09, it is possible to obtain electricity, and this electricity can be used effectively, and other effects similar to those of the previous embodiment can be achieved.

As described in detail above, the road-use temperature difference power generation device according to the present invention includes a heat medium circulation system in which a heat medium flows and a part of the heat medium is buried in the road, and an underground water system in which groundwater flows. It is configured to generate electricity using the temperature difference between surface water and groundwater.

That is, in the summer, the surface of the road is hotter than the groundwater, and in the winter, the opposite is true.

By using this temperature difference to generate electricity, summer IυJ
can remove heat from the road and heat it up in the winter, for example, suppressing road deformation in the summer and snowfall in the winter.
Electricity can be used effectively, for example, by using it as electrolytic corrosion for indicator lights.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the road condition in summer, FIG. 2 is a diagram showing the road condition in winter, and FIGS. 3 and 4 are schematic diagrams of a road usage temperature difference centering device showing an embodiment of the present invention. h4 diagram, FIG. 5, and FIG. 6 are the same diagrams as above showing other embodiments. 101...Road, 103...Heat transfer tube (heat medium circulation system), ZO4...Groundwater system, 105...Groundwater. Applicant's sub-agent Patent attorney Takehiko Suzue Figure 5 Figure 6 Tamaketsu procedure amendment mouth Showa Misaki 9. % 28th Japan Patent Office Commissioner Kazuo Wakasugi 1, Indication of the case, Patent Application No. 58-45751 2, Title of the invention: Road use temperature difference power generation device 3, Relationship with the Ministry case for amendment Patent applicant (620) 3M Heavy Industries Co., Ltd. 4.1! Agent No. 17 Mori Building, 1-26-5 Toranomon, Minato-ku, Tokyo;
6. [E No. 1 Ming Zhu 7, Contents of amendment (1) On page 6 of the specification, lines 14 to 12, “interposed between the medium and
It was separated into secondary heat carriers such as freon and ammonia.'' (2) Delete “Tojito no Water J” on page 6, line 73 of the specification. (3) Correct “heat medium” on page 6, line 14 of the specification to “heat medium water, etc.” . (4) Specification page 7, line 6, same page, line 7, same page M1
"Water" in line 0 and line 18 of the same page is corrected to "secondary heat medium." (5) In the third line of page 8 of the specification, 1. Water is corrected to ``The secondary heat medium is water, etc.''. (6) "Heating medium" in the second line of page 7 of the specification, lines 4 to 5 of page 8, and line 6 of the same page is corrected to "heating medium such as water." (7) Add the following sentence next to "It is possible to do..." on page 9, line 14 of the specification. [Also, in winter, it is possible to use hot water, such as geothermal water, instead of groundwater to increase the temperature difference between the boiler and the condenser, thereby improving power generation efficiency. J

Claims (1)

[Claims] A road use characterized by having a heat medium circulation system where a heat medium flows and a part of which is embedded in the road, and a groundwater system where groundwater flows, and generating electricity by the temperature difference between the road surface and groundwater. Temperature difference power generation device.