WO2015156402A1 - Système de stockage de chaleur solaire - Google Patents

Système de stockage de chaleur solaire Download PDF

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Publication number
WO2015156402A1
WO2015156402A1 PCT/JP2015/061287 JP2015061287W WO2015156402A1 WO 2015156402 A1 WO2015156402 A1 WO 2015156402A1 JP 2015061287 W JP2015061287 W JP 2015061287W WO 2015156402 A1 WO2015156402 A1 WO 2015156402A1
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Prior art keywords
heat
shock absorber
control valve
storage system
flow
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PCT/JP2015/061287
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English (en)
Japanese (ja)
Inventor
裕昭 桐木
久保　修一
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イビデン株式会社
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Publication of WO2015156402A1 publication Critical patent/WO2015156402A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/10—Details of absorbing elements characterised by the absorbing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F24S60/10—Arrangements for storing heat collected by solar heat collectors using latent heat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Definitions

  • the present invention relates to a solar heat storage system.
  • the area of the power generation panel is highly correlated with the amount of power generation and equipment costs.
  • the area of the mirror is highly correlated with the amount of power generation and equipment costs.
  • the correlation between the area of the mirror and the power generation cost is not high. For this reason, there is a feature that the power cost becomes cheaper as the power generation facility becomes larger, which is suitable for large-scale power generation.
  • Patent Document 1 proposes a regenerator that responds to short-time fluctuations separately from a regenerator for nighttime power generation.
  • a plurality of first heat storage tanks that carry a phase change medium and through which a heat medium flows and a second heat storage tank that does not include a phase change medium are connected in parallel to the solar field.
  • the high-temperature heat medium has been supplied to the stratification tank (second heat storage tank) until just before, a high-temperature heat medium in which the temperature has hardly decreased can be supplied to the solar heat radiating unit. By doing in this way, responsiveness can be made more favorable. That is, it is possible to prevent the power generation system from being cooled when sufficient sunlight cannot be obtained due to clouds or the like. Thus, it is described that a decrease in the amount of power generation due to weather changes can be suppressed.
  • an object of the present invention is to provide a solar heat storage system capable of stably supplying thermal energy.
  • the solar heat storage system of the present invention connects a heat receiving part that absorbs solar heat, an energy conversion part that extracts energy from a heat medium that has passed through the heat receiving part and absorbed the solar heat, and the heat receiving part and the energy conversion part. And a flow path pipe through which the heat medium flows, and a shock absorber connected to the flow path pipe and allowing the heat medium to pass therethrough, the shock absorber being provided inside the case,
  • the heat medium that is in direct contact with the heat medium includes a solid material that is permeable to the heat medium together with direct contact. According to such a solar heat storage system, it has a shock absorber that is internally provided with a solid material that can cope with sudden output fluctuations.
  • the heat medium can enter the inside, and can directly exchange heat with the heat medium, so that heat can be efficiently extracted. For this reason, even if there is a sudden weather change at the time of power generation, the influence on voltage fluctuation and frequency fluctuation can be reduced.
  • the solar heat storage system of the present invention preferably further has the following mode.
  • the solid material is an object selected from at least one of a granule, an aggregate of plates, a foam, and a honeycomb.
  • the heat medium can pass through the inside with a small resistance. For example, even when the sun is clouded and the generated energy is drastically reduced, the amount of heat that smoothly compensates for the decrease in power generation can be supplied without interruption.
  • the shock absorber has a first connection hole and a second connection hole connected to the flow path pipe, and the solid material is a flow of a heat medium connecting the first connection hole and the second connection hole.
  • the honeycomb body has little resistance in the direction of the flow path and can increase the area of the inner wall that directly exchanges heat with the heat medium, so that the flow of the heat medium that connects the first connection hole and the second connection hole By arranging the flow path along, the heat energy stored inside the honeycomb body can be efficiently extracted.
  • the solar heat storage system is connected in series in the order of the heat receiving unit, the buffer, and the energy conversion unit along the flow of the heat medium.
  • the thermal energy supplied to the energy conversion unit is stabilized by temporarily storing the heat energy generated in the heat receiving unit in an intermediate buffer by connecting the heat receiving unit, the buffer, and the energy conversion unit in series. can do.
  • the heat medium may or may not be circulated. If it is not circulated, it is preferable to use air as the heat medium.
  • air is used as the heat medium in a solar heat storage system that does not circulate the heat medium, the air after the heat energy is taken out by the energy conversion part can be released after the air near the heat receiving part is taken in.
  • the flow path pipe forms a closed circuit in which a heat medium circulates between the heat receiving unit and the energy conversion unit, and the shock absorber is connected in parallel with the heat receiving unit and the energy conversion unit.
  • the connection portion between the buffer and the high-temperature channel pipe has a first switching valve that closes the flow of the heat medium to the heat receiving unit or the buffer
  • the buffer and the low-temperature channel A connection point with the pipe has a second switching valve that closes the flow of the heat medium to the heat receiving unit or the shock absorber in conjunction with the first switching valve.
  • the amount of heat can be supplied without interruption, smoothly compensating for the decrease in the amount of power generation.
  • both the first switching valve and the second switching valve are opened in all directions, and the heat energy received in the heat receiving part is converted into energy.
  • Distribute parts and shock absorbers When the heat energy generated in the heat receiving portion is reduced, the flow of the first switching valve and the second switching valve to the heat receiving portion is reduced, and the flow of the heat medium centering on the loop between the buffer and the energy conversion portion is reduced.
  • Form By controlling in this way, for example, even when a cloud is applied to the sun and the generated energy is drastically reduced, the amount of heat that smoothly compensates for a decrease in the amount of power generation can be supplied without interruption.
  • the shock absorber has a first flow control valve, and has a bypass pipe provided with a second flow control valve in parallel with the shock absorber.
  • the first flow rate control valve and the second flow rate control valve are controlled by a control device that keeps the temperature of the heat medium introduced into the energy conversion unit constant. Furthermore, by controlling the first flow rate control valve and the second flow rate control valve with a control device that keeps the temperature of the heat medium constant, fluctuations in the amount of power generation can be suppressed, and the effect on the power system Can be reduced.
  • the shock absorber has a first flow rate control valve, and a heat accumulator having a larger heat capacity than the shock absorber provided with a third flow rate control valve in parallel with the shock absorber.
  • the shock absorber has a first flow rate control valve, and has a heat accumulator having a larger heat capacity than the shock absorber provided with a third flow rate control valve in parallel with the shock absorber. It can be distributed appropriately. When sunshine is weak, open the first flow control valve, throttle the third flow control valve, reduce the ratio of heat energy to store heat, and when sunshine is strong, throttle the first flow control valve and open the third flow control valve , Excess heat energy can be stored.
  • the first flow rate control valve and the third flow rate control valve are controlled by a control device that keeps the temperature of the heat medium introduced into the energy conversion unit constant. Furthermore, by controlling the first flow rate control valve and the third flow rate control valve with a control device that keeps the temperature of the heat medium constant, fluctuations in the amount of power generation can be suppressed, and the effect on the power system Can be reduced.
  • the amount of heat energy to the energy conversion unit is from only the heat receiving unit. It can be freely adjusted in the range of heat energy and heat energy only from the buffer. By making such adjustment, it is possible to prevent hunting or overshooting of the amount of heat energy to the energy conversion unit. More effective effects can be obtained by actively controlling the sun when the sun begins to shine after the sun is clouded.
  • the heat energy generated in the heat receiving portion can be appropriately distributed.
  • the first flow control valve throttle the third flow control valve, reduce the ratio of heat energy to store heat
  • sunshine is strong, throttle the first flow control valve and open the third flow control valve , Excess heat energy can be stored.
  • the first flow control valve, the second flow control valve, or the third flow control valve is connected to a control device that keeps the temperature of the heat medium introduced into the energy conversion unit constant. Furthermore, by controlling the first flow rate control valve, the second flow rate control valve, and the third flow rate control valve with a control device that keeps the temperature of the heat medium constant, fluctuations in the power generation amount can be suppressed. The influence on the power system can be reduced.
  • the solar heat storage system of the present invention has a shock absorber that is internally provided with a solid material that can cope with sudden output fluctuations.
  • the heat medium can enter the inside, and can directly exchange heat with the heat medium, so that heat can be efficiently extracted. For this reason, even if there is a sudden weather change at the time of power generation, the influence on voltage fluctuation and frequency fluctuation can be reduced.
  • FIG. 1 is a system configuration diagram of a solar thermal power generation system 1000 using a solar thermal storage system 100 according to an embodiment of the present invention.
  • the solar thermal power generation system 1000 includes a mirror 120, a solar thermal storage system 100, and a steam gas turbine generator 130.
  • the energy conversion unit 2 that mediates the solar heat storage system 100 and the steam gas turbine generator 130 is configured by a heat exchanger.
  • the solar heat storage system 100 of this embodiment connects the heat receiving part 1 which absorbs the solar heat of sunlight guided by the mirror 120, the energy conversion part 2, the heat receiving part 1 and the energy conversion part 2, and the heat medium circulates. And a shock absorber 4 that is connected to the flow path pipe 3 and through which the heat medium passes.
  • the shock absorber 4 is provided inside the housing 44 (see FIG. 2), and a solid material (a honeycomb body in the example of FIG. 2) that allows the heat medium to directly contact and transmit the heat medium. 43 or an assembly of plates 45).
  • the heat medium that passes through the heat receiving unit 1 absorbs solar heat absorbed by the heat receiving unit 1 and circulates through the flow pipe 3, and the energy conversion unit 2 plays a role of extracting energy based on solar heat from the heat medium.
  • the steam gas turbine generator 130 is operated by the extracted energy, and electric power is generated.
  • the solar heat storage system 100 is capable of dealing with sudden output fluctuations, and has a solid material inside the shock absorber 4 through which the heat medium directly contacts and through which the heat medium can pass.
  • the solid material can infiltrate the heat medium inside and can directly exchange heat with the heat medium, so that heat can be efficiently extracted. For this reason, even if there is a sudden weather change at the time of power generation, the influence on voltage fluctuation and frequency fluctuation can be reduced.
  • the solar heat storage system 100 includes a bypass pipe 71 and a heat storage 72 that are provided in parallel with the shock absorber 4.
  • the portion where the heat medium around the shock absorber 4 stays is defined as the stay portion A, and the shock absorber 4, the bypass pipe 71, the heat accumulator 72, and the first to third flow rate control valves 61, 62, 63 (see FIG. 6). It can be included in the retention part.
  • the solar heat storage system of the present invention has various modes, for example, by changing the following components.
  • the solar heat storage system is not limited to the following components.
  • shock absorber B1 Heat receiving portion, shock absorber, energy conversion portion are in series and both ends open B2 Heat receiving portion, shock absorber, energy conversion portion Closed circuit in series B3 Heat receiving part, shock absorber, energy conversion part in parallel with closed circuit
  • C Bypass pipe provided in parallel with buffer, presence or absence of heat accumulator (mode of staying part) C1 shock absorber only C2 shock absorber and bypass piping
  • FIG. 2 is a perspective view showing an example of an embodiment of the shock absorber 4 used in the solar heat storage system 100.
  • (a) is an example in which the solid material inside the shock absorber 4 is a honeycomb body, and
  • (b) is a shock absorber 4.
  • the solid material inside is an example of an assembly of plates.
  • FIG. 2 in order to explain the solid material inside the shock absorber 4, it is shown in a state where the inside can be seen through the housing 44 of the shock absorber 4.
  • a first connection hole 41 and a second connection hole 42 connected to the flow path pipe 3 are provided at both ends of the housing 44.
  • a honeycomb body 43 in which a flow path 43a is disposed along the flow of the heat medium connecting the first connection hole 41 and the second connection hole 42 as a solid material is provided inside the housing 44.
  • the first connection hole 41 and the second connection hole 42 connected to the flow path pipe 3 are provided at both ends of the housing 44.
  • An assembly 45 of plates arranged along the flow of the heat medium connecting the first connection hole 41 and the second connection hole 42 as a solid material is provided inside the housing 44.
  • the plate assembly 45 includes a plurality of plates 45b arranged in parallel to each other, and a flow path 45a is formed between the plates 45b.
  • the type of solid material is not particularly limited, and examples thereof include honeycomb bodies, aggregates of plates, foams, and granules.
  • honeycomb body a honeycomb body made of a metal such as iron or aluminum can be used in addition to a ceramic honeycomb body such as SiC, cordierite, alumina, graphite, or carbon.
  • the aggregate of the plates is not particularly limited.
  • it is an aggregate of plates arranged at intervals and preferably parallel to each other.
  • the material of the plate is not particularly limited.
  • ceramic plates such as SiC, cordierite, alumina, graphite, and carbon
  • plates such as metals such as iron and aluminum can also be used.
  • Examples of the foam include pumice obtained by volcanic eruption, ceramic foam such as carbon foam obtained by carbonizing foamed phenol resin, and metal foam having pores inside the metal.
  • the granule is not particularly limited, and examples thereof include metals and ceramics.
  • ceramic for example, particles obtained by coarse pulverization with a jaw crusher or the like can be used.
  • the average particle diameter of the granules is not particularly limited, but is, for example, 1 to 30 mm.
  • the average particle diameter of the granules can be measured by a sizing method using a multistage sieve. Specifically, it is obtained by analyzing the size of the voids of the sieve and the weight passing through each sieve.
  • ceramics such as graphite, SiC, cordierite, and alumina, and metals such as iron and aluminum can be used.
  • metals such as iron and aluminum
  • ceramics can be suitably used because they have corrosion resistance and heat resistance.
  • the honeycomb body 43 shown in FIG. 2 (a) has little resistance in the direction of the flow path and can increase the area of the inner wall that directly exchanges heat with the heat medium. Therefore, by disposing the flow path along the flow of the heat medium that connects the first connection hole 41 and the second connection hole 42, it is possible to efficiently draw out the thermal energy stored in the honeycomb body 43.
  • shock absorbers are connected as follows, for example.
  • B1 Heat-receiving unit, buffer, energy conversion unit are connected in series and both ends are open
  • B2 Heat-receiving unit, buffer, energy conversion unit are closed in series
  • B3 Heat-receiving unit, buffer, energy conversion unit are closed circuit in parallel
  • the type of energy conversion unit is not particularly limited.
  • the energy conversion part 2 is comprised from the heat exchanger which heats another heat medium using the heat energy of a heat medium.
  • the energy conversion unit can also be configured by a turbine that converts the heat energy of the heat medium directly into kinetic energy.
  • the turbine is appropriately selected depending on the type of heat medium, and a steam turbine, a gas turbine, or the like can be used.
  • the heat receiving unit 1 in the embodiment of FIG. 1 is a light-heat conversion medium provided in the light collecting unit of the mirror, and various forms such as a honeycomb shape and a porous shape can be used.
  • FIG. 3 is a system configuration diagram illustrating an example of the solar heat storage system 100 in which the heat receiving unit 1, the buffer 4, and the energy conversion unit 2 are connected in series by the flow channel pipe 3 and both ends of the flow channel pipe 3 are opened.
  • B1 When the heat receiving unit 1, the shock absorber 4, and the energy conversion unit 2 are connected in series and both ends are open, since both ends are open, for example, air can be used as the heat medium.
  • ambient air is taken in as a heat medium, heated by the heat receiving unit 1, passed through the buffer pipe 4 through the flow path pipe 3, and then guided to the energy conversion unit 2.
  • the energy conversion unit 2 for example, heat exchange or conversion into kinetic energy by a turbine is performed. After that, the air as the heat medium is returned to the atmosphere.
  • FIG. 4 is a system configuration diagram illustrating an example of a solar heat storage system 100 in which the heat receiving unit 1, the shock absorber 4, and the energy conversion unit 2 are connected in series by the flow channel pipe 3 and the flow channel pipe 3 forms a closed circuit. (B2).
  • the flow path pipe 3 is not opened so that the heat medium returns from the energy conversion unit 2 to the heat receiving unit 1. Composed.
  • a heat medium is not specifically limited, Various things, such as various heat medium oil, gas, a vapor
  • various heat mediums such as oil, gas, and steam are heated by the heat receiving unit 1, and after passing through the flow path pipe 3 and the buffer 4, are then guided to the energy conversion unit 2.
  • the energy conversion unit 2 for example, heat exchange or conversion into kinetic energy by a turbine is performed. Thereafter, the cooled heat medium is returned to the heat receiving unit 1 via the flow path pipe 3.
  • the solar heat storage system 100 having this configuration, since heat energy is stored in the shock absorber 4, even if the amount of sunlight is reduced, the heat energy delivered to the energy conversion unit 2 does not decrease rapidly but decreases gently. In addition, the influence on the power system can be reduced.
  • FIG. 5 is a system configuration diagram illustrating an example of a solar heat storage system 100 in which the heat receiving unit 1, the buffer 4, and the energy conversion unit 2 are connected in parallel by the flow channel pipe 3 and the flow channel pipe 3 forms a closed circuit. (B3).
  • the heat receiving unit 1, the shock absorber 4, and the energy conversion unit 2 are connected in parallel to form a closed circuit, the flow path pipe 3 is not opened, and the heat medium returns from the energy conversion unit 2 to the heat receiving unit 1. Composed.
  • a heat medium is not specifically limited, Various things, such as various heat medium oil, gas, a vapor
  • a first switching valve 51 that closes the flow of the heat medium to the heat receiving portion 1 or the shock absorber 4 is provided at a connection location between the shock absorber 4 and the high-temperature side passage pipe 3.
  • a second switching valve 52 that closes the flow of the heat medium to the heat receiving portion 1 or the buffer 4 in conjunction with the first switching valve 51 is connected at a connection portion between the buffer 4 and the low-temperature side pipe 3. Is provided.
  • various heat mediums such as oil, gas, and steam are heated by the heat receiving unit 1, and then passed through the flow pipe 3 and distributed to the buffer 4 and the energy conversion unit 2 by the first switching valve 51. Is done.
  • the energy conversion unit 2 exclusively performs, for example, heat exchange or conversion into kinetic energy by a turbine.
  • the shock absorber 4 stores thermal energy.
  • the heat medium that has passed through the buffer 4 and the energy conversion unit 2 is collected by the second switching valve 52 and returned to the heat receiving unit 1 through the flow path pipe 3.
  • the solar heat storage system 100 having this configuration when the amount of sunshine decreases, the heat receiving portion 1 side of the first switching valve 51 and the second switching valve 52 is throttled so that the heat medium flows in the reverse direction in the shock absorber 4. Become. By such an operation, the thermal energy accumulated in the shock absorber 4 is guided to the energy conversion unit 2, and a decrease in the amount of power generated due to a decrease in the amount of sunlight can be compensated.
  • the bypass pipe 71 and the heat accumulator 72 provided in parallel with the shock absorber 4 will be described.
  • a portion where the heat medium around the shock absorber 4 stays is referred to as a stay portion A (see FIG. 1).
  • a bypass pipe 71, a heat accumulator 72, first to third flow control valves 61, 62 and 63 may be included in the staying portion.
  • examples of the staying part include the following four forms. This will be described in order below.
  • the heat accumulator 72 has a larger heat capacity than the shock absorber 4. Inside the heat accumulator 72, for example, a lump of concrete, a latent heat storage material, or the like is enclosed. When a latent heat storage material is used for the heat accumulator 72, a flow path pipe passes through the heat accumulator 72, and heat exchange is performed by heat transfer on the wall of the flow path pipe.
  • the solar heat storage system (C1) in which the staying portion is composed only of the shock absorber 4 the solar heat can absorb the decrease in the amount of sunlight due to the action of the shock absorber 4 with a simple structure.
  • a heat storage system can be provided, and the influence of changes in the amount of sunlight on the power system can be reduced.
  • the first flow rate control valve is provided on the shock absorber 4 side.
  • a second flow rate control valve is provided on the bypass pipe side.
  • the amount of heat energy to the energy conversion unit 2 is The heat energy from only the heat receiving unit 1 and the heat energy from only the buffer 4 can be freely adjusted. By making such adjustment, it is possible to prevent hunting or overshooting of the amount of heat energy to the energy conversion unit 2. More effective effects can be obtained by actively controlling the sun when the sun begins to shine after the sun is clouded.
  • first flow rate control valve 61 and the second flow rate control valve 62 of the solar heat storage system of the present embodiment are preferably controlled by the control device 80 that keeps the temperature of the heat medium introduced into the energy conversion unit 2 constant. (See FIG. 8).
  • control device 80 measures the temperature of the heat medium in the inlet of the energy conversion unit 2, the outlet of the buffer 4, and the bypass pipe 71, and the first flow control valve 61 according to the obtained temperature value. And the opening degree of the 2nd flow control valve 62 is adjusted.
  • the temperature of the heat medium in the bypass pipe 71 is the same temperature as long as it is within the range from the heat receiving portion 1 to the bypass pipe 71 or the buffer 4 inlet, and may be measured anywhere.
  • the inlet and the outlet are defined with respect to the flow direction of the heat medium. For this reason, when the heat receiving part 1, the shock absorber 4, and the energy conversion part 2 form a closed circuit as shown in FIG. 5 (B3), the flow direction of the heat medium with respect to the shock absorber 4 is switched.
  • the inlet and outlet vary depending on the direction in which the heat medium flows.
  • the control device 80 controls the first flow rate control valve 61 and the second flow rate control valve 62 by the control device 80 that keeps the temperature of the heat medium constant, fluctuations in the amount of power generation can be suppressed, and the power system Can be reduced.
  • the first flow control valve 61 is provided on the shock absorber 4 side.
  • a third flow rate control valve 63 is provided on the regenerator 72 side.
  • the heat receiving portion 1 By providing a first flow rate control valve 61 upstream of the shock absorber 4 and providing a heat accumulator 72 having a larger heat capacity than the shock absorber 4 provided with the third flow rate control valve 63 in parallel with the shock absorber 4, the heat receiving portion 1.
  • the heat energy generated in can be appropriately distributed.
  • the first flow control valve 61 When the sunlight is weak, the first flow control valve 61 is opened and the third flow control valve 63 is throttled to reduce the ratio of heat energy to be stored.
  • the first flow control valve 61 is throttled to control the third flow control.
  • the valve 63 can be opened to store excess heat energy.
  • the first flow rate control valve 61 and the third flow rate control valve 63 of the solar heat storage system of the present embodiment are preferably controlled by a control device 80 that keeps the temperature of the heat medium introduced into the energy conversion unit 2 constant ( (See FIG. 8).
  • the temperature of the heat medium at the inlet of the energy conversion unit 2, the outlet of the shock absorber 4 and the outlet of the heat accumulator 72 is measured, and the first flow control valve 61 and the third The opening degree of the flow control valve 63 is adjusted.
  • a first flow rate control valve 61 is provided, a second flow rate control valve 62 is provided on the bypass pipe 71 side, and a third flow rate control valve 63 is provided on the heat accumulator 72 side.
  • the amount of heat energy to the energy conversion unit 2 is The heat energy from only the heat receiving unit 1 and the heat energy from only the buffer 4 can be freely adjusted. By making such adjustment, it is possible to prevent hunting or overshooting of the amount of heat energy to the energy conversion unit 2. More effective effects can be obtained by actively controlling the sun when the sun begins to shine after the sun is clouded.
  • the heat energy generated in the heat receiving section 1 can be appropriately distributed.
  • the first flow control valve 61 is opened and the third flow control valve 63 is throttled to reduce the ratio of heat energy to be stored.
  • the first flow control valve 61 is throttled to control the third flow control.
  • the valve 63 can be opened to store excess heat energy.
  • the first flow control valve 61, the second flow control valve 62, or the third flow control valve 63 of the solar heat storage system of the present embodiment is provided in the control device 80 that keeps the temperature of the heat medium introduced into the energy conversion unit 2 constant. It is preferable that they are connected (see FIG. 8).
  • FIG. 7 shows an example of the solar heat storage system 100, and the retention portion shown in FIG. 6C is incorporated in the configuration in which both ends of the flow path pipe 3 shown in FIG. 3 are opened.
  • the solar heat storage system 100 having such a configuration can suitably use air as a heat medium.
  • FIG. 8 shows another example of the solar heat storage system 100, and the retention portion shown in FIG. 6 (d) is incorporated in the closed circuit configuration of the flow path pipe 3 shown in FIG.
  • the heat medium is not particularly limited, and various heat medium oils, gases, steams, and the like can be used.
  • the control apparatus 80 is shown only in this figure, naturally a control apparatus is applicable also to the form shown in the other figure.
  • FIG. 9 shows another example of the solar heat storage system 100.
  • the first flow control is performed between the first switching valve 51 and the second switching valve 52.
  • a series connection of the valve 61 and the shock absorber 4 and a series connection of the third flow rate control valve 63 and the heat accumulator 72 are provided in a mutually connected state.
  • the heat medium is not particularly limited, and various heat medium oils, gases, steams, and the like can be used.
  • the solar heat storage system of the present invention it is possible to suppress the influence on the voltage fluctuation and the frequency fluctuation even if there is a sudden weather change. Can be promoted.

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Abstract

L'invention concerne un système de stockage de chaleur solaire (100) comportant : une unité de réception de chaleur (1) qui absorbe la chaleur solaire ; une unité de conversion d'énergie (2) qui extrait l'énergie d'un milieu thermique qui a traversé l'unité de réception de chaleur (1) et a absorbé la chaleur solaire ; un conduit de chemin d'écoulement (3) qui relie l'unité de réception de chaleur (1) et l'unité de conversion d'énergie (2), et à travers lequel circule le milieu thermique ; et un dispositif tampon (4) qui est relié au conduit de chemin d'écoulement (3), et à travers lequel circule le milieu thermique. Le dispositif tampon (4) comprend un boîtier (44), et un matériau solide (43, 45) qui est ménagé à l'intérieur du boîtier (44) et établit un contact direct avec le milieu thermique, et à travers lequel peut passer le milieu thermique.
PCT/JP2015/061287 2014-04-11 2015-04-10 Système de stockage de chaleur solaire WO2015156402A1 (fr)

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JP2014-082220 2014-04-11
JP2014082220A JP2015203515A (ja) 2014-04-11 2014-04-11 太陽熱蓄熱システム

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US10639299B2 (en) 2016-03-29 2020-05-05 Georgia State University Research Foundation, Inc. Calcium sensing receptors, ligands, compositions, and methods of use

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