WO2016002824A1 - Récepteur de collecte de chaleur - Google Patents

Récepteur de collecte de chaleur Download PDF

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Publication number
WO2016002824A1
WO2016002824A1 PCT/JP2015/068925 JP2015068925W WO2016002824A1 WO 2016002824 A1 WO2016002824 A1 WO 2016002824A1 JP 2015068925 W JP2015068925 W JP 2015068925W WO 2016002824 A1 WO2016002824 A1 WO 2016002824A1
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WO
WIPO (PCT)
Prior art keywords
absorber
heat collecting
heat
collecting receiver
receiver
Prior art date
Application number
PCT/JP2015/068925
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English (en)
Japanese (ja)
Inventor
伊藤　孝
久保　修一
Original Assignee
イビデン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by イビデン株式会社 filed Critical イビデン株式会社
Publication of WO2016002824A1 publication Critical patent/WO2016002824A1/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
    • 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 heat collecting receiver that receives sunlight and converts it into heat.
  • Solar thermal power generation includes tower-type solar thermal power generation that uses a mirror having a sun tracking function to concentrate sunlight on a heat collecting receiver provided in the tower.
  • Tower-type solar power generation is characterized by high temperature and high energy efficiency because light from many mirrors is collected in one place.
  • Patent Document 1 discloses that a heat collection receiver used in a solar thermal power generation apparatus includes a heat absorber composed of one or a plurality of honeycomb units in which a plurality of flow paths for allowing a heat medium to pass therethrough are provided, It consists of a support body (casing) that supports the heat absorber and circulates the heat medium.
  • the heat absorber includes silicon carbide and is supported at a predetermined distance from the inner surface of the support.
  • the heat collecting receiver described in Patent Document 1 needs to arrange and use many heat collecting receivers when the light receiving unit has a large area in order to receive a large amount of solar heat. If many heat collecting receivers are used in an array, the support material (casing) that surrounds the heat absorber will also be exposed to sunlight and exposed to high temperatures, requiring heat resistance, and strength due to gravity, wind pressure, etc. It becomes. For this reason, material selection and structural design of the support material (casing) are important issues in obtaining a large-scale solar power generation apparatus.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a high-concentration heat collection receiver of a new concept that can be applied to the heat collection section of a large-scale solar thermal power generation apparatus.
  • a heat collecting receiver for solving the above-mentioned problems is a heat collecting receiver comprising an absorber composed of a plurality of honeycomb bodies arranged and arranged to have a light receiving surface for absorbing sunlight, and a housing holding the absorber. And the said absorber is supported by the absorber holder with which the inside of the said housing was equipped, and the support rod connected with the said absorber holder.
  • the heat collecting receiver of the present invention since it comprises an absorber that absorbs sunlight and a housing that holds the absorber, the heat absorbed by the absorber is taken into the housing and is not leaked to the outside. can do.
  • the absorber since the absorber is supported by a support rod on the absorber holder provided inside the housing, even if the absorber is large in area, the absorber can be prevented from being bent without being divided by a casing or the like. can do.
  • the light-receiving surface of the heat collecting receiver can be constituted only by an absorber and there is no extra member such as a casing, heat resistance can be improved. Thereby, the high intensity
  • the heat collecting receiver of the present invention has the following aspect. (1) A plurality of the support rods are provided. Since the heat collecting receiver of the present invention has a plurality of support rods, it is possible to make it difficult for bending to occur even if a large-area absorber is formed.
  • the plurality of honeycomb bodies are bonded to each other with an adhesive layer.
  • the heat collecting receiver of the present invention is joined to each other by a joining means made of an adhesive layer to constitute one absorber. For this reason, it can be easily prepared, the strength of the absorbent body can be maintained, and the honeycomb body can be prevented from falling off from the absorbent body.
  • the absorbent body is a support rod that is formed of honeycomb bodies having different lengths, and a part of the honeycomb body is supported by the absorbent body holder.
  • the absorbent bodies are constituted by different honeycomb bodies, and a part of the honeycomb bodies functions as a support bar supported by the absorbent body holder. For this reason, it is not necessary to separately provide a support rod, so the number of parts can be reduced and the structure can be simplified. Moreover, since the space for providing the support rod is not necessary, the heat collecting receiver can be made compact.
  • the absorber is supported by the absorber holder and the support rod provided inside the housing, so even if the absorber has a large area, it is not divided by the casing or the like. In addition, the bending of the absorber can be prevented. Moreover, since the light-receiving surface of the heat collecting receiver can be composed only of an absorber and there is no extra member such as a casing, heat resistance can be improved. Thereby, the high intensity
  • FIG. 1 is a front view of a part of the heat collecting receiver
  • FIG. 2 is a cross-sectional view taken along the line BB in (A).
  • the heat collecting receiver of the present invention will be described.
  • the heat collection receiver of the present invention is a heat collection receiver comprising an absorber composed of a plurality of honeycomb bodies that have a light receiving surface that absorbs sunlight and is arranged, and a housing that holds the absorber. Is supported by an absorber holder provided inside the housing and a support bar connected to the absorber holder.
  • the heat collecting receiver of the present invention since it comprises an absorber that absorbs sunlight and a housing that holds the absorber, the heat absorbed by the absorber is taken into the housing and is not leaked to the outside. can do. Further, since the absorber is supported by the absorber holder and the support rod provided inside the housing, even if the absorber has a large area, the absorber can be divided without being divided by a casing or the like. Bending can be prevented. In addition, the light receiving surface of the heat collecting receiver can be constituted only by an absorber and there is no extra member such as a casing, so that heat resistance can be improved. Thereby, the high intensity
  • the heat collecting receiver of the present invention has the following aspect. (1) A plurality of the support rods are provided. Since the heat collecting receiver of the present invention has a plurality of support rods, it is possible to make it difficult for bending to occur even if a large-area absorber is formed.
  • the plurality of honeycomb bodies are bonded to each other with an adhesive layer.
  • the heat collecting receiver of the present invention is joined to each other by a joining means made of an adhesive layer to constitute one absorber. For this reason, it can be easily prepared, the strength of the absorbent body can be maintained, and the honeycomb body can be prevented from falling off from the absorbent body.
  • the absorbent body is a support rod that is formed of honeycomb bodies having different lengths, and a part of the honeycomb body is supported by the absorbent body holder.
  • the absorbent bodies are constituted by different honeycomb bodies, and a part of the honeycomb bodies functions as a support bar supported by the absorbent body holder. For this reason, it is not necessary to separately provide a support rod, so the number of parts can be reduced and the structure can be simplified. Moreover, since the space for providing the support rod is not necessary, the heat collecting receiver can be made compact.
  • the heat collection receiver 10A of each embodiment described below can be used for the power generation apparatus 1 using sunlight.
  • the power generator 1 has a central tower 2 in the center. At the highest position of the central tower 2, a heat collecting receiver 10A described later is disposed.
  • a steam generator 4, a heat accumulator 5, and a steam turbine 6 are sequentially disposed below the heat collection receiver 10A.
  • a number of heliostats 8 are arranged around the central tower 2. The heliostat 8 is set so that the reflection angle and the rotation direction around the vertical direction can be freely controlled. The heliostat 8 is automatically controlled so as to reflect the sunlight that changes every moment and collect it in the heat collecting receiver 10 ⁇ / b> A of the central tower 2.
  • heat collecting receiver 10A a plurality of heat collecting receivers 10A face the light-receiving surface that receives sunlight irradiation in a box with the sun light emitting surface open. It is arranged in an aligned state.
  • an absorber 20 ⁇ / b> A composed of a plurality of honeycomb bodies 21 that absorb sunlight SB reflected from the heliostat 8, and a housing that holds the absorber 20 ⁇ / b> A.
  • the housing 30A includes a housing portion 31 that houses the absorber 20A, and a pipe 33 that is continuous with the housing portion 31 and communicates with the steam generator 4 and the like.
  • the absorbent body 20A houses a plurality of honeycomb bodies 21 in a housing portion 31 of a housing 30A having a square cross-sectional shape.
  • a total of 16 honeycomb bodies 21 of 4 vertical ⁇ 4 horizontal are accommodated.
  • the outer end surfaces 211 that are the light receiving surfaces of the honeycomb bodies 21 are adjacent to each other.
  • the number of honeycomb bodies 21 is not limited.
  • the honeycomb body 21 is made of ceramic.
  • the honeycomb body 21 is preferably made of, for example, one or more ceramics selected from alumina, cordierite, silicon carbide, and aluminum titanate.
  • the absorber 20 ⁇ / b> A is supported from the back by an absorber holder 46 provided inside the housing 30 ⁇ / b> A and a support bar 47 connected to the absorber holder 46.
  • a plurality of support bars 47 can be provided in the absorber 20A.
  • the plurality of honeycomb bodies 21 are bonded to each other with an adhesive layer that is a bonding means.
  • the heat collecting receiver has a joining means 29 for supporting the front end portion of the honeycomb body 21.
  • a plate-like member, an adhesive layer, or the like that does not allow air to flow can be used, but a mesh-like or lattice-like member that allows air to flow can also be used.
  • the heat collecting receiver 10A of the first embodiment since the absorber 20A that absorbs the sunlight SB and the housing 30A that holds the absorber 20A, the heat absorbed by the absorber 20A is absorbed by the housing 30A. It can be taken inside and not leaked outside.
  • the absorber 20A is supported by the support rod 47 on the absorber holder 46 provided inside the housing 30A, even if the absorber 20A has a large area, it is not divided by a casing or the like. Further, the bending of the absorbent body 20A can be prevented. Moreover, since the light-receiving surface of the heat collecting receiver 10A can be comprised only by the absorber 20A, heat resistance can be improved. Thereby, the high intensity
  • the heat collecting receiver 10A of the first embodiment includes the plurality of support rods 47, it is possible to make it difficult for bending to occur even if the large-area absorber 20A is configured.
  • the absorbent body 20A is formed by joining a plurality of honeycomb bodies 21 with an adhesive layer, the strength of the absorbent body 20A can be maintained. It can also be easily created.
  • the heat collecting receiver 10B of the second embodiment includes an absorber 20B that absorbs sunlight SB reflected from the heliostat 8, and a housing 30B that holds the absorber 20B.
  • the housing 30B includes a housing portion 31 that houses the absorber 20B, and pipes 32 and 33 that are continuous with the housing portion 31 and communicate with the steam generator 4 and the like.
  • the absorbent body 20B houses a plurality of honeycomb bodies 21 in a housing portion 31 of a housing 30B having a square cross-sectional shape.
  • a total of 25 honeycomb bodies 21 of 5 vertical ⁇ 5 horizontal are accommodated.
  • the honeycomb body 21 includes two types of honeycomb bodies, a first honeycomb body 22 and a second honeycomb body 23.
  • the outer end surface 221 that is the light receiving surface of the first honeycomb body 22 and the outer end surface 231 that is the light receiving surface of the second honeycomb body 23 are adjacent to each other.
  • the central four honeycomb bodies 21 are the second honeycomb bodies 23, and the other honeycomb bodies 21 are the first honeycomb bodies 22. That is, the first honeycomb bodies 22 are sandwiched between the second honeycomb bodies 23, and the first honeycomb bodies 22 and the second honeycomb bodies 23 are alternately arranged.
  • the first honeycomb body 22 and the second honeycomb body 23 are formed of ceramics that are the same material.
  • the first honeycomb body 22 and the second honeycomb body 23 are preferably formed of one or more ceramics selected from, for example, alumina, cordierite, silicon carbide, and aluminum titanate.
  • the first honeycomb body 22 is shorter in the air flow direction than the second honeycomb body 23.
  • the second honeycomb body 23 can function as a support bar supported by the absorbent body holder.
  • the shape of the absorber holder is not particularly limited.
  • the second honeycomb body 23 that functions as a support rod may be supported, and any form such as a rod shape, a lattice shape, or a plate shape may be used.
  • the absorber holder of the second embodiment constitutes a plate-shaped partition wall 28.
  • the second honeycomb body 23 penetrates through the partition wall, which is the absorbent body holder of the present embodiment, and the first honeycomb body 22 does not penetrate. With such a configuration, the following functions can be newly given.
  • the heat collection receiver 10B has a first space behind the inner end surface 222 opposite to the outer end surface 221 of the first honeycomb body 22 inside the housing 30B (to the right in FIG. 4). 24 is provided. That is, the first space 24 communicates with the outside of the heat collecting receiver 10B through the first honeycomb body 22.
  • a first connection hole 25 communicating with the first space 24 is provided in the housing portion 31 of the housing 30B.
  • a pipe 32 is attached to the first connection hole 25.
  • a second space 26 that is continuous with the inner end surface 232 on the opposite side of the outer end surface 231 of the second honeycomb body 23 is provided.
  • a second connection hole 27 is provided continuously in the second space 26.
  • a pipe 33 is connected to the second connection hole 27.
  • a partition wall 28 that separates the first space 24 and the second space 26 is provided in the vicinity of the inner end face 232 of the second honeycomb body 23, and the second honeycomb body 23 is disposed in the housing 30 ⁇ / b> B via the partition wall 28. Attached to. For this reason, the air of the 1st space 24 and the air of the 2nd space 26 are not mixed (refer FIG.6 (B)).
  • the partition wall 28 functions as an absorber holder for preventing the absorber 20B from being bent and is made of a strong and heat-resistant material because it is exposed to air heated by solar heat.
  • the material which comprises the partition 28 is not specifically limited, For example, ceramics, such as metals, such as iron and stainless steel, alumina, silicon carbide, cordierite, silicon nitride, aluminum titanate, etc. can be used suitably.
  • the absorbent body 20B can be provided with a joining means 29 for supporting the front end portions of the first honeycomb body 22 and the second honeycomb body 23.
  • the joining means 29 can use a plate-like member, an adhesive layer, or the like through which air does not flow, but it is also possible to use a mesh-like or lattice-like member through which air can flow.
  • the absorbent body 20B is supported by the second honeycomb body 23 functioning as a support rod on the back surface side, and joined to each other by the joining means 29 on the front end side, so that the honeycomb body 21 falls off due to wind pressure. Can be prevented.
  • the second honeycomb body 23 functions as a support rod, but also the second honeycomb body 23 is connected to the second space 26, and the first honeycomb body 22 is It is connected to the first space 24.
  • the first space 24 and the second space 26 are separated by a partition wall 28, so that a characteristic air movement can be formed.
  • the air illuminated by sunlight from the heliostat 8 is sucked from the outer end surface 221 of the first honeycomb body 22, passes through the first honeycomb body 22, and is first from the inner end surface 222.
  • the space 24 is accommodated.
  • the air accommodated in the first space 24 is sent to the steam generator 4 or the like by the pipe 32 through the first connection hole 25 and used for power generation.
  • the air used for power generation passes from the cooler through the pipe 33 and is sent to the second space 26 through the second connection hole 27.
  • the air accommodated in the second space 26 is sent from the inner end face 232 of the second honeycomb body 23 to the second honeycomb body 23 and returned from the outer end face 231. A part of the returned air is sucked again from the outer end face 221 of the first honeycomb body 22 adjacent to the second honeycomb body 23.
  • the heat collecting receiver 10B of the second embodiment since the absorber 20B that absorbs sunlight and the housing 30B that holds the absorber 20B are included, the heat absorbed by the absorber 20B is transferred to the interior of the housing 30B. It is possible to prevent leakage to the outside. Further, since the absorber 20B is composed of the first honeycomb body 22 and the second honeycomb body 23 whose outer end faces 221 and 231 as light receiving surfaces are adjacent to each other, both the air return side and the suction side of the light receiving unit are also provided. An equivalent honeycomb body can be used. For this reason, the heat collecting receiver 10B can be comprised, without receiving restrictions, such as a shape and a material. Further, it is possible to suck air heated by sunlight from either the first honeycomb body 22 or the second honeycomb body 23. Similarly, the used air can be returned from any honeycomb body.
  • the housing 30B has a first space 24 continuous to the inner end face 222 opposite to the outer end face 221 in the first honeycomb body 22, and the first connection hole 25 is provided in the first space 24. Is provided. For this reason, hot air absorbed from the first honeycomb body 22 and accumulated in the first space 24 can be sent to, for example, a generator or the like through the first connection hole 25. Alternatively, the used air stored in the first space 24 can be returned to the outside from the first honeycomb body 22 through the first connection holes 25.
  • the second honeycomb body 23 has a second space 26 continuous with the inner end surface 232 opposite to the outer end surface 231, and the second space 26 is provided with a second connection hole 27. .
  • the used air stored in the second space 26 can be returned to the outside from the second honeycomb body 23.
  • hot air absorbed from the second honeycomb body 23 and stored in the second space 26 can be sent to, for example, a generator or the like through the second connection hole 27 (see FIG. 6B).
  • the second space 26 is isolated by the first space 24 and the partition wall 28, the sucked air and the returned air can be prevented from being mixed, and the suction of the air heated by sunlight and Return can be done continuously.
  • the absorbent body 20B includes a plurality of first honeycomb bodies 22 and second honeycomb bodies 23, so that even if the absorbent body 20B has temperature variations, thermal stress Is less likely to accumulate, and a high-strength heat collecting receiver 10B can be configured.
  • the air returned from the first honeycomb body 22 is returned to the second honeycomb body 23. Can be sucked efficiently. Alternatively, the air returned from the second honeycomb body 23 can be efficiently sucked by the first honeycomb body 22.
  • the first honeycomb bodies 22 and the second honeycomb bodies 23 are alternately arranged, so that the air returned from the first honeycomb bodies 22 is returned to the second honeycomb bodies. 23 can be sucked more efficiently.
  • the first honeycomb body 22 can suck the air returned from the second honeycomb body 23 more efficiently.
  • the first honeycomb body 22 and the second honeycomb body 23 are made of ceramic, they have heat resistance and corrosion resistance and are high in strength. For this reason, it can be used even in a severe environment such as a high temperature environment or a corrosive environment.
  • the heat collection receiver 10B of the second embodiment is made of ceramic such as alumina, cordierite, silicon carbide, aluminum titanate, etc., it is possible to provide the heat collection receiver 10B having heat resistance and corrosion resistance and high strength.
  • the first honeycomb body 22 and the second honeycomb body 23 are made of the same material as each other. Stress can be suppressed.
  • the heat collecting receiver of the present invention is not limited to the above-described embodiments, and appropriate modifications and improvements can be made.
  • This application is based on a Japanese patent application filed on June 30, 2014 (Japanese Patent Application No. 2014-134585), the contents of which are incorporated herein by reference.
  • the heat collecting receiver of the present invention can be used for a generator that generates power by receiving sunlight and converting it into heat.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

La présente invention concerne un récepteur (10A) de collecte de chaleur qui comprend un corps (20A) d'absorption destiné à absorber la lumière du soleil et un boîtier (30A) destiné à maintenir le corps (20A) d'absorption. Par conséquent, la chaleur absorbée par le corps (20A) d'absorption peut être capturée dans le boîtier (30A) et empêchée de s'échapper vers l'extérieur. En outre, une tige (47) de support est utilisée pour supporter le corps (20A) d'absorption sur un support (46) de corps d'absorption disposé dans le boîtier (30A). Par conséquent, même si le corps (20A) d'absorption possède une grande surface, la déformation du corps (20A) d'absorption peut être inhibée sans avoir à séparer le corps (20A) d'absorption à l'aide d'un boîtier ou analogue. De plus, une surface (211) de réception de lumière du récepteur (10A) de collecte de chaleur peut être conçue uniquement à partir du corps (20A) d'absorption et ainsi la résistance à la chaleur peut être améliorée.
PCT/JP2015/068925 2014-06-30 2015-06-30 Récepteur de collecte de chaleur WO2016002824A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014134585A JP2016011811A (ja) 2014-06-30 2014-06-30 集熱レシーバ
JP2014-134585 2014-06-30

Publications (1)

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WO2016002824A1 true WO2016002824A1 (fr) 2016-01-07

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50145941A (fr) * 1974-04-22 1975-11-22
US5483950A (en) * 1992-07-18 1996-01-16 L. & C. Steinmuller Gmbh Solar device with an air receiver and air return
JP2003329311A (ja) * 2002-05-14 2003-11-19 Takeo Saito 集光・集熱装置
JP2011027375A (ja) * 2009-07-29 2011-02-10 Solar Next:Kk 太陽熱集熱装置
JP2012093003A (ja) * 2010-10-25 2012-05-17 Ibiden Co Ltd 集熱レシーバー及び太陽熱発電装置
US20130025586A1 (en) * 2009-01-30 2013-01-31 Saint-Gobain Industriekeramik Rodental Gmbh Solar absorber module and solar absorber arrangement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50145941A (fr) * 1974-04-22 1975-11-22
US5483950A (en) * 1992-07-18 1996-01-16 L. & C. Steinmuller Gmbh Solar device with an air receiver and air return
JP2003329311A (ja) * 2002-05-14 2003-11-19 Takeo Saito 集光・集熱装置
US20130025586A1 (en) * 2009-01-30 2013-01-31 Saint-Gobain Industriekeramik Rodental Gmbh Solar absorber module and solar absorber arrangement
JP2011027375A (ja) * 2009-07-29 2011-02-10 Solar Next:Kk 太陽熱集熱装置
JP2012093003A (ja) * 2010-10-25 2012-05-17 Ibiden Co Ltd 集熱レシーバー及び太陽熱発電装置

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