JP2018044439A - Method for suppressing opposition of geothermal generation, accelerating utilization of power geothermal energy and accelerating geothermal power generation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform geothermal power generation with hot water of a spring source of hot spring, and utilize hot water whose temperature decreases, for bathing in hot spring, to coexist geothermal power generation and hot spring.SOLUTION: Thermal energy of high-temperature hot water in a spring source is utilized to use energy generation such as power generation, without digging a well for geothermal power generation, and a temperature of hot water having been used for power generation reduces to a temperature at which a person can take a bath, and then the hot water is supplied to hot spring. As a method for power generation, hot water is guided to a steam generator 19, water 22 in a container 21 becomes steam 23 to rotate a turbine 25, and then power 28 is generated with a dynamo 27. Also, disclosed is a method for heating a thermoelectric element with hot water to generate power.SELECTED DRAWING: Figure 3

Description

  The present invention relates to hot spring geothermal power generation using geothermal heat.

Geothermal power generation is not progressing in Japan, where geothermal energy is excavated to generate heat energy.

Japan is the country with the world's leading geothermal energy. There are 110 volcanoes in Japan, accounting for 10% of the world, and even in the world where geothermal sources are close to the city. I've been against it. Therefore, even though there is a geothermal source in Japan, the potential energy that there is little geothermal power generation has been wasted.
The present invention has been made in view of such problems, and is an epoch-making invention that can utilize the potential energy of Japan because it is an invention that is willing to cooperate with geothermal power generation without receiving opposition from the hot spring industry.

The present invention that solves the above-mentioned problems is an invention of four birds with one stone that does not dig a well for geothermal power generation, but generates electricity with the heat of hot water from the hot spring source, thereby lowering the temperature of the hot spring to a temperature suitable for the hot spring. It is.

According to the present invention, since there is no need to newly excavate a geothermal well, it is possible to generate power at a low cost, and the source can be cooled for free or profitable. We are willing to cooperate rather than oppose, so we can obtain the source energy by making full use of our geothermal energy, which has the great effect of four birds with one stone.
FIG. 1 is a diagram showing the relationship between current hot springs and geothermal power generation. In the figure, 4 is a source. 1 is magma, 2 is groundwater in the earth, 3 is cracks in the earth, 6 is a source cooling device, 5 is piping, 7 is hot springs, 8 is a geothermal power generation well, 9 is a steam turbine, 10 is a generator, 11 Is the generated power.

  Therefore, since hot springs and geothermal power generation use the same spring source, Japan has one of the world's leading geothermal energy because hot springs do not welcome geothermal power generation because hot springs are reduced because geothermal power generation reduces the source of hot springs. It has not been used.

  Figure 2 shows the current hot spring system. Since the temperature of the source 4 is 80 to 100 ° C., it is too hot for people to enter. Therefore, as the cooling device 6, the temperature is lowered by immersing a cold body in hot water or lowering the temperature by pouring hot water onto the bamboo bamboo 13 with many branches and pouring it onto the bamboo bamboo 13. Since the temperature of the reservoir temperature 15 falls to a temperature that can be entered by a person of about 42 ° C., a method of guiding this to the hot spring section 7 through the pipe 16 is adopted.

Relationship diagram between conventional geothermal power generation and conventional hot springs Conventional source system The figure which shows the 1st and 2nd Example of this invention The figure which shows 3rd Example of this invention

FIG. 3 is a diagram showing a first embodiment of the present invention. In the figure, reference numeral 4 denotes a source, which is a temperature of 80 to 100 ° C. A pipe 18 guides hot water from the source to the steam generator 19. Water 22 in the pot 21 becomes steam 23 by the heater tube 20 of the steam generator 19 and becomes high pressure, and is sent to the turbine 25 by the pipe 24 to rotate the turbine 25.
A generator 27 coupled by the shaft 26 of the turbine 25 is rotated to generate electric power 28. 29 is a condenser, and the water returns to the kiln 21.

The temperature of the source spring 4 is lowered by the heater 20 and supplied to the hot spring 7 by the pipe 16.
As the second embodiment of the present invention, when the source temperature is as low as 82 ° C., a water having a low boiling point such as Freon is used instead of water 22. The vaporized freon gas 23 is sent to the turbine 25 via the pipe 24 and rotated. The rotational force of the turbine 25 is applied to the generator 27 via the rotating shaft 26, and the generator rotor (not shown) is rotated. When the generator rotor rotates, the generator 27 generates an AC voltage. . The generator 27 is sent to a predetermined load as the AC power supply 28 to drive the load, as described in the first embodiment.

    In such a series of operations, the steam from the turbine 25 enters the condenser 29 and is returned to the gas generation unit 21 through the pipe 30 in the liquid state 22 and circulated for use. Since the hot water emitted from the pipe 18 heats the gas generation unit 21, the temperature is lowered to about 42 ° C. and is lowered to a temperature at which a person is immersed, so that it can be used as the hot spring 7.

  FIG. 4 shows a third embodiment of the present invention. Hot water from the source 4 is guided to the heater tube 32 (the shape may be a curved tube so as to maximize the heating efficiency), and the thermoelectric element 33 is heated. It is known that the thermoelectric element 33 generates electricity when heat is applied. This is coupled 34 in series or in parallel to obtain a predetermined voltage and current to obtain electric power 28. The first and second embodiments are dynamic, large and medium power generation using a turbine, and the third embodiment is a solid state static and silent small power generation using a thermoelectric element. This is an example used for hot springs.

  In the fourth embodiment, the present invention is used as above-mentioned hot springs as ground heat or various energy heat sources as energy other than the electric energy, for example, heat energy. In traditional hot springs, heat was thrown away to cool the source. In the present invention, since thermal energy is used for generators and other energy, the profit of the hot spring area is obtained by using the geothermal heat, so the hot spring trader does not oppose the geothermal power generation, so that the national geothermal energy can be effectively used.

  Since the present invention does not oppose the hot spring operators and can generate power using hot spring sources without digging a new well for geothermal power generation, it can be generated not only at low cost but also scattered throughout the country. Since it can supply energy such as power generation using hot springs, it can cover the power energy of hot spring inns and private houses in the vicinity of the hot springs, so it has great industrial applicability that can utilize Japanese heat sources for industry. .

1 Magma 2 Groundwater 3 Crack 4 Source 5 Hot water supply pipe 6 Cooling device (for example, cooling bamboo)
7 Hot spring 8 Geothermal power generation well 9 Power generation turbine 10 Generator 11 Generated electric power 12 Pipe to cooling bamboo 18 Pipe from source to heating pipe 19 Steam generating heater 20 Heater 21 Kettle 22 Low boiling point fluid such as water or Freon, Freon B 23 Steam 24 Pipe 25 for sending steam to turbine Steam turbine 26 Rotating shaft 27 Generator 28 The present invention Electric power taken out in 29 Condenser 30 Pipe returned to kettle 32 Pipe passing hot water from the source 33 Known thermoelectric element 34 Thermoelectric element connection

Claims (1)

A hot spring system such as geothermal power generation, which uses the thermal energy of hot water from the hot spring source to generate energy such as power generation, and lowers the high source temperature to a temperature suitable for bathing.

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