Power generation device

Abstract

The problem to be solved by the present invention is to provide a power generation device which can be regenerated and can stably supply power. In order to solve the problem, this power generation device (1) is characterized by being provided with a plurality of thermal units (20) and a power generation unit (6), and the plurality of thermal units (20) are provided with: a metal container (21) having a plurality of partitioned storage chambers (212); an alkaline earth metal particulate material (22) which is housed in the housing chamber (212) and which generates heat by being supplied with water; a lid member (23) provided on the upper part of the metal container (21) and having a through-hole (23a); a heating member (24) provided at the lower part of the metal container (21); and a pipe member (25) provided on the upper part of the cover member (23), the pipe member (25) having a water flow passage (250) in which water flows, the pipe member (25) having a dripping part (252) provided on the lower part thereof, the dripping part (252) dripping the water. And a power generation unit (6) that generates power using water vapor and / or heat generated by a reaction between the alkaline earth metal and water.

Description

Technical Field

[0001] The present disclosure relates to a power generation device. Background Art

[0002] In the past, solar energy and wind power generation have been known as renewable energy sources in order to suppress global warming. Since renewable energy sources are sometimes difficult to supply electricity stably, various batteries are used to store energy. In order to repeatedly regenerate energy, a heating system has been proposed that generates heat by hydrating a metal salt and removes water from the hydrated metal salt with the generated heat (for example, see Patent Document 1).

[0003] [Prior Technical Literature]

[0004] (Patent Document)

[0005] Patent Document 1: Japanese Patent Application Publication No. 2005-300070 Summary of the invention

[0006] [Problems to be solved by the invention]

[0007] An object of the present invention is to provide a power generation device which is a renewable energy source that suppresses the generation of CO 2 and can provide a stable power supply so as to reduce the adverse effects on the global environment.

[0008] [Technical means to solve the problem]

[0009] (1) A power generation device (e.g., power generation device 1), characterized in that it comprises a plurality of heat units (e.g., heat unit 20) and a power generation unit, wherein the plurality of heat units comprises: a metal container (e.g., metal container 21) having a plurality of partitioned storage chambers; alkaline earth metal granules (e.g., granules 22) stored in the aforementioned storage chambers (e.g., storage chamber 212) and generating heat by being supplied with water; a cover member (e.g., cover member 23) disposed on the upper portion of the aforementioned metal container and having There is a through hole (for example, through hole 23a); a heating component (for example, heating component 24) is arranged at the lower part of the aforementioned metal container; and a pipe component (for example, pipe component 25) is arranged at the upper part of the aforementioned cover component, forming a water flow passage (for example, water flow passage 250) for water to flow inside, and having a dripping part (for example, dripping part 252) arranged at the lower part for water to drip; the power generation part uses water vapor and / or heat generated by the reaction of the aforementioned alkaline earth metal and water to generate electricity.

[0010] (2) In the power generating device described in (1) above, preferably, the pipe member has an induction coil portion (for example, the induction coil portion 253) integrated with a tubular pipe body (for example, the pipe body 251).

[0011] (3) Preferably, it is an energy system (for example, energy system 100) that supplies renewable energy to the power generation device described in (1) or (2) above, and supplies the energy generated by the aforementioned power generation device to the power supply grid.

[0012] (Effects of the Invention)

[0013] According to the above (1), power generation can be performed by supplying water to alkaline earth metal granules to obtain steam and / or heat, and the granules can be heated and reused. Thus, a power generation device that is a renewable energy source and can stably supply power can be provided.

[0014] In addition, in this embodiment, since there are a plurality of heat units, steam can be discharged from the gaps between the heat units or water can be supplied, thereby suppressing the occurrence of steam explosion. Therefore, there is no need to composite the alkaline earth metal of the granular material with other porous materials, and cheap materials can be used directly as granular materials.

[0015] In addition, by making the heat unit separate and having multiple units, it is easy to remove water in a short time during regeneration, thereby shortening the cycle of heat generation and removal.

[0016] In addition, since the metal container has a plurality of partitioned storage chambers, it is possible to prevent the granular materials from being aggregated during transportation.

[0017] According to the above (2), by integrating the pipe member and the induction coil unit, the space becomes smaller, so that more heat units can be accommodated in the power generation device. In addition, water vapor can be discharged from the gap between the induction coil units or between the induction coil unit and the surface of the pipe body.

[0018] According to (3) above, power generation can be performed by supplying water to alkaline earth metal granules to obtain steam and / or heat, and the granules can be heated and reused. Thus, an energy system that is renewable energy and can provide stable power supply can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a diagram for explaining the energy system according to this embodiment.

[0020] Figure 2 It is a schematic diagram of the heat generating portion of this embodiment. DETAILED DESCRIPTION

[0021] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 1As shown, the energy system 100 of this embodiment includes a power generation device 1, a power supply grid 200, and a renewable power supply unit 300. In the energy system 100, the power generation device 1 uses the energy supplied by the renewable power supply unit 300 to perform more stable power generation. In addition, the power generated by the power generation device 1 is supplied to homes, businesses, etc. via the power supply grid 200.

[0022] The power supply network 200 is composed of power supply mechanisms of power companies that supply power from power plants that generate power using thermal power, nuclear power, or the like to users such as business entities and households.

[0023] The renewable power supply unit 300 includes a power generation mechanism using natural energy such as solar power generation and wind power generation. In the renewable power supply unit 300, the supply of power often varies depending on the environment. The renewable power supply unit 300 is connected to both the power supply grid 200 and the power generation device 1.

[0024] The power generation device 1 includes a heating unit 2, a regeneration unit 3, a water circulation unit 4, a tank 5, and a power generation unit 6. The power generation device 1 stores heat and water vapor generated by the heating unit 2 in the tank 5, and generates electricity in the power generation unit 6 using the water vapor.

[0025] like Figure 2 As shown, the heat generating section 2 is constituted by arranging a plurality of heat units 20 in an overlapping manner in a container 26 partitioned into a predetermined space. The container 26 is connected with a water supply pipe 41, a water supply valve 41a, a heating steam supply pipe 42, a heating steam valve 42a, a water vapor exhaust pipe 43, and a condensed water supply pipe 44, which will be described later. In addition, as for the heat generating section 2 and the regenerating section 3, substantially the entire surface of the outer side of the container 26 thereof is covered with a heat insulating material 261, and energy loss is suppressed.

[0026] The heat units 20 are arranged so as to be separable and replaceable one by one. Each heat unit 20 includes a metal container 21 , granular material 22 , a cover member 23 , a heating member 24 , and a pipe member 25 .

[0027] The metal container 21 includes a container body 211 and a plurality of storage chambers 212 .

[0028] The container body 211 is a shallow dish-shaped container with an open top, and has a bottom surface 211a and a side wall 211b. The metal container 21 is formed of a magnetic metal. Specifically, the metal container 21 is made of stainless steel having magnetism.

[0029] The plurality of storage chambers 212 are formed of a metallic honeycomb structure. The honeycomb structure is made of metal so that it generates heat due to electromagnetic induction heating. The honeycomb structure is placed on the container body 211, and is arranged in a manner that the partition wall 212a extends from the bottom surface to the opening of the upper part in the vertical direction, and is divided into a plurality of spaces by the partition wall 212a to form the storage chamber 212. The height of the partition wall 212a is configured not to exceed the height of the container body 211, and is lower than the upper end of the side wall 211b of the container body 211.

[0030] The granular material 22 is formed by forming an alkaline earth metal into granular form. The granular material 22 is filled and stored in the storage chamber 212 of the metal container 21. The granular material may be in any shape, including granular, powdery, or other granular materials regardless of the size of the particles.

[0031] The cover member 23 is a metal cover provided on the upper part of the metal container 21 and covering the metal container 21. The cover member 23 has a through hole 23a through which steam can pass up and down. The specific shape of the cover member 23 can be a mesh or a punched metal with circular holes formed on a flat plate.

[0032] The heating member 24 is a plate-shaped member provided at the lower portion of the metal container 21. The heating member 24 heats the bottom surface 211a of the metal container 21 with an induction heater. The heating member 24 is heated by power supply and the temperature thereof increases.

[0033] The pipe member 25 is a non-magnetic metal cylindrical body provided on the upper part of the cover member 23. Specifically, it is a copper pipe. The pipe member 25 is a water supply pipe forming a water flow passage 250 in which water flows, and is also a pipe of an induction coil integrated for heating. Figure 2 As shown, the heat unit 20 is arranged in an overlapping manner, and the bottom surface 211a of the metal container 21 is arranged above the tube member 25, and the cover member 23 is arranged below. An insulating plate 27 is provided between the tube member 25 and the metal container 21 to prevent the tube member 25 from directly contacting the metal container 21. The insulating plate 27 is made of ceramic or glass with through holes, insulation and heat resistance. As another structure for insulating the metal container 21 from the tube member 25, in addition to the insulating plate 27, a water-permeable mat (non-woven fabric) cloth (woven fabric) or sheet made of glass fiber or ceramic fiber can also be provided on the upper surface of the cover member with through holes. The tube member 25 has a tube body 25, a dripping part 252 and an induction coil part 253.

[0034] The tube body 251 has a tubular shape, such as Figure 2 As shown, a plurality of pipe bodies 251 are arranged adjacent to each other so as to cover the cover member 23. The pipe body 251 has its longitudinal direction extending in a direction along the upper surface or the lower surface of the metal container 21.

[0035] The dripping portion 252 is a slit provided on the cover member 23 side, that is, the lower portion of the pipe body 251. When water flows through the pipe body 251, the water drips from the dripping portion 252 formed at the lower portion and falls to the metal container 21 located below.

[0036] The induction coil part 253 is a copper wire wound in a coil shape on the surface of the pipe body 251. The induction coil part 253 is integrated with the pipe body 251. The pipe body 251 and the induction coil part 253 are both heated, and the granular material 22 is heated.

[0037] The regeneration unit 3 has the same heat unit 20 as the heat generation unit 2. Figure 1 The left side of the heating unit 2 is described, and the right side of the regeneration unit 3 is described, but the heating unit 2 and the regeneration unit 3 have the same structure. By switching the water supply valve 41a and the heating steam valve 42a provided in the container 26, the container 26 functions as the heating unit 2 or as the regeneration unit 3. The switching of the water supply valve 41a and the heating steam valve 42a is performed by electric drive, and the electric power is supplied by the renewable power supply unit 300. In the heating unit 2, water is supplied to the heat unit 20 to generate heat, and in the regeneration unit 3, heat is supplied to separate water from the hydrated granular matter 22.

[0038] The water circulation unit 4 supplies water to the heating unit 2, and alternately supplies or discharges heating steam between the heating unit 2 and the regeneration unit 3. The water circulation unit 4 includes a water supply source 40, a water supply pipe 41, a heating steam supply pipe 42, a water vapor discharge pipe 43, and a condensed water supply pipe 44.

[0039] The water supply source 40 may be a sewer. Since water vapor is generated by supplying water to the heating unit 2, water obtained from the generated water vapor is also supplied. Therefore, the amount of water supplied by the water supply source 40 is appropriately adjusted according to the amount of water obtained from the water vapor and the scale of the power generation device 1.

[0040] The water supply pipe 41 is connected to the pipe member 25, and water is supplied from the water supply source 40 to the pipe member 25. The water supplied from the water supply pipe 41 flows through the water flow passage 250 of the pipe member 25.

[0041] The heating steam supply pipe 42 connects the heat generating section 2 and the regenerating section 3 , and the water vapor generated by detaching from the heat unit 20 in the container 26 driven as the regenerating section 3 is supplied to the heat generating section 2 .

[0042] The water vapor exhaust pipe 43 is a pipe for conveying the water vapor generated by the heat generating section 2 to the power generating section 6 described later. Figure 1In the figure, for the sake of convenience, only the steam exhaust pipe 43 is shown from the container 26 marked with a symbol as the heat generating portion 2. Figure 1 The container 26 on the right side that functions as the regeneration section 3 is also connected to a water vapor exhaust pipe 43 (not shown). When the regeneration section 3 is switched to the heat generation section 2, water vapor is transported from the container 26 on the right side to the power generation section 6.

[0043] The condensed water supply pipe 44 is a pipe for returning condensed water from a condenser 52 to be described later to the container 26 .

[0044] The tank 5 includes a steam tank 51 and a condenser 52. The steam tank 51 collects the steam generated in the heating unit 2 and sends it to the power generation unit 6. When the power generation unit 6 has a generator that uses steam to generate electricity, the steam is used directly. The condenser 52 condenses part or all of the steam. The condensed water is supplied to the heating unit 2 through the condensed water supply pipe 44.

[0045] The power generation section 6 generates electricity by using the water vapor and / or heat generated by the reaction between the granular matter 22 of the heat generation section 2, i.e., the alkaline earth metal, and water. The power generation section 6 is not particularly limited as long as it is a device that generates electricity by using the water vapor generated by the heat generation section 2. For example, it may be a steam turbine or a spiral generator. In addition, it may not only directly utilize water vapor, but also may be a device that uses heat to generate electricity, such as a thermoelectric element or a Stirling engine. In addition, it is also possible to generate electricity by using the energy when the water vapor is decompressed. As for the structure of the power generation section 6, any known structure may be selected.

[0046] The flow of power generation in the power generation device 1 is described. For each of the plurality of heat units 20 stacked up and down, water is supplied from the water supply source 40 to the pipe body 251 via the water supply pipe 41. Then, water drips downward from the dripping portion 252. The water passes through the through hole 23a of the cover member 23 and falls on the granular material 22. Then, the granular material 22, which is an alkaline earth metal, generates heat due to the supplied water, and the supplied water boils and changes into water vapor.

[0047] The water vapor is sent from the water vapor discharge pipe 43 to the water vapor tank 51 of the tank 5. When the water vapor is used for power generation, it is directly sent to the power generation unit 6 to generate electricity. The electricity generated in the power generation unit 6 is used via the power supply network 200. In addition, part of the water vapor generated at this time is sent from the heating unit 2 to the condenser 52, condensed by the condenser 52, and sent to the heating unit 2 from the condensed water supply pipe 44. In addition, the water vapor collected in the tank 5 can also be directly used as water vapor in a water heating system or the like.

[0048] When the granular material 22 in the heating section 2 is hydrated and no longer generates heat, the container 26 that functions as the heating section 2 is switched to the regeneration section 3. Specifically, the water supply valve 41a supplied to the heating section 2 is closed, and the heating steam valve 42a is opened. In the regeneration section 3 where the water supply is stopped, the cover member 23, the heating member 24 and the pipe member 25 are heated, and the wet granular material 22 is heated from both the upper and lower sides. In a state where a plurality of heat units 20 are overlapped, the bottom surface 211a of the metal container 21 made of magnetic metal close to the pipe member 25 and the cover member 23 of the metal container 21 are heated due to the magnetic force generated from the induction coil part 253 of the pipe member 25. Since the honeycomb structure constituting the storage chamber 212 of the metal container 21 is also made of metal, it generates heat due to electromagnetic induction heating. Thus, the granular material 22 is heated from the top and bottom, so that the granular material 22 can be regenerated in a short time. Even when water evaporates or the granular matter 22 generates heat during regeneration, water vapor is easily discharged from the gaps between the cover member 23 of the stacked heat unit 20 or the bottom surface 21a of the metal container 21, thereby suppressing water vapor explosion. Furthermore, even if the granular matter 22 explodes due to water vapor caused by heating, the cover member 23 can protect the pipe body 251 and the induction coil unit 253.

[0049] The heating in the regeneration unit 3 utilizes electricity supplied from the renewable power supply unit 300. By operating the power generation device 1 using the electricity from the renewable power supply unit 300, the unstable power supply can be used for the production of other energy sources.

[0050] By being heated by the regeneration unit 3, the moisture in the granular material 22 evaporates and returns from Ca(OH)2 to CaO. Thus, the granular material 22 can be used again in the heat generation unit 2. The water vapor and exhaust heat generated by the regeneration unit 3 can also be used as energy.

[0051] When water is separated from the granular matter 22 of the heat unit 20 in the regeneration section 3 , the heating steam valve 42a is closed, and the water supply valve 41a is opened to supply water from the water supply pipe 41 . Thus, the container 26 is switched to the heat generation section 2 .

[0052] According to this embodiment, the following effects are achieved.

[0053] (1) The power generation device 1 is constructed to include a plurality of heat units 20 and a power generation section 6, wherein the plurality of heat units 20 include: a metal container 21 having a plurality of partitioned storage chambers 212; alkaline earth metal granules 22 stored in the storage chambers 212 and generating heat by being supplied with water; a cover member 23 provided at the upper portion of the metal container 21 and having a through hole 23a; a heating member 24 provided at the lower portion of the metal container 21; and a pipe member 25 provided at the upper portion of the cover member 23, forming a water flow passage 250 for water flow therein and having a dripping portion 252 provided at the lower portion for water dripping; the power generation section 6 generates electricity by using water vapor and / or heat generated by the reaction between the alkaline earth metal and water.

[0054] Electricity can be generated by supplying water to the alkaline earth metal granules 22 to obtain steam and / or heat, and can be reused by heating the granules 22. Thus, a power generation device that suppresses the generation of CO2 and is a renewable energy source and can provide stable power supply can be provided.

[0055] In addition, in this embodiment, since a plurality of heat units 20 are provided, steam can be exhausted or water can be supplied from the gaps between the heat units 20, thereby suppressing the occurrence of steam explosion. Therefore, there is no need to composite the alkaline earth metal of the granular material 22 with other porous materials, and an inexpensive material can be used as the granular material 22 as it is.

[0056] In addition, by dividing the heat unit 20 into a plurality of units, water can be easily removed in a short time during regeneration, thereby shortening the cycle of heat generation and removal.

[0057] In addition, since the metal container has a plurality of partitioned storage chambers 212 , it is possible to prevent the granular matter 22 from being aggregated during transportation.

[0058] (2) According to the present embodiment, the pipe member 25 is configured to include the induction coil portion 253 integrated with the tubular pipe body 251. By integrating the pipe body 251 and the induction coil portion 253, the space becomes smaller, and more heat units 20 can be accommodated in the power generation device 1. In addition, water vapor can be discharged from the gaps between the induction coil portions 253 or between the induction coil portion 253 and the surface of the pipe body 251.

[0059] (3) According to this embodiment, an energy system 100 can be provided, which supplies renewable energy to the above-mentioned power generation device 1 and supplies the energy generated by the power generation device 1 to the power supply grid 200. Power generation can be performed by supplying water to the alkaline earth metal granules to obtain water vapor and / or heat, and the granules can be heated and reused. Thus, an energy system 100 that is renewable energy and can provide stable power supply can be provided.

[0060] In addition, the present invention is not limited to the above-mentioned embodiments, and modifications and improvements within the scope of achieving the purpose of the present invention are included in the present invention. For example, the storage chamber 212 of the metal container 21 has a honeycomb structure, but is not limited to this. The honeycomb structure is not limited to a hexagon, and may be, for example, a quadrilateral, a triangle, a wave, or a grid or stripe. The type of the heating member 24 and the heating method may also be appropriately changed.

[0061] In addition, in the above-mentioned embodiment, an example is described in which the power generation device 1 is connected to the power supply grid 200 in the energy system 100. As another embodiment, for example, instead of connecting the power generation device to the power supply grid, a power generation device in a household or the like may be used to store electricity generated by a solar panel or the like as a renewable power supply unit during the day and use it at night.

[0062] Reference numerals

[0063] 1 Power generation device

[0064] 20 heat units

[0065] 21 Metal Container

[0066] 22 Granular

[0067] 23 Cover parts

[0068] 24 Heating elements

[0069] 25 tube parts

[0070] 100 Energy Systems

[0071] 200 Power supply network

[0072] 212 Storage Room

[0073] 252 drops down

[0074] 253 Induction coil unit

Claims

1. A power generation device, characterized in that: A plurality of thermal units and a power generation unit are provided, wherein the plurality of thermal units include: A metal container having a plurality of divided storage chambers; Alkaline earth metal granules are stored in the storage chamber and generate heat by being supplied with water; A cover member, disposed on the upper portion of the metal container, having a through hole; A heating component is disposed at the bottom of the metal container; and a pipe member disposed on the upper portion of the cover member, having a water flow passage formed therein for water to flow, and having a dripping portion disposed at the lower portion for water to drip; The power generation unit generates electricity using steam and / or heat generated by the reaction between the alkaline earth metal and water.

2. The power generation device according to claim 1, wherein: The pipe member includes an induction coil portion integrated with a pipe body having a tubular shape.

3. An energy system for supplying renewable energy to the power generation device according to claim 1 or 2, The energy generated by the aforementioned power generation device is supplied to the power supply grid.

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