JPH05162700A - Regenerator integrated heat receiver-accumulator - Google Patents
Regenerator integrated heat receiver-accumulatorInfo
- Publication number
- JPH05162700A JPH05162700A JP3325454A JP32545491A JPH05162700A JP H05162700 A JPH05162700 A JP H05162700A JP 3325454 A JP3325454 A JP 3325454A JP 32545491 A JP32545491 A JP 32545491A JP H05162700 A JPH05162700 A JP H05162700A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- regenerator
- heat storage
- accumulator
- storage device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は宇宙基地等に搭載される
宇宙軌道用発電プラントに使用される受蓄熱器に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage / storage device used in a power plant for space orbit mounted on a space station or the like.
【０００２】[0002]
【従来の技術】宇宙基地等の宇宙軌道上にある設備に電
力を供給するための発電方式として太陽光により流体を
加熱し、ガスタービン等の熱機関を駆動して発電を行う
ものがある。この発電方式が特に低軌道上の宇宙基地等
に適用されるケースでは太陽が地球の影に隠れてしまう
時、つまり日蝕時には太陽から輻射熱を得ることができ
なくなり、発電が一時的に停止してしまう。このため、
必要な熱を予め蓄熱材に蓄えておき、太陽光の入射がな
い時に放熱して流体を加熱するようにした熱交換器、す
なわち受蓄熱器が使用される。2. Description of the Related Art As a power generation method for supplying electric power to facilities on a space orbit such as a space station, there is one that heats a fluid by sunlight and drives a heat engine such as a gas turbine to generate electric power. Especially in the case where this power generation method is applied to space stations in low orbits, when the sun is hidden behind the earth, that is, during solar eclipse, radiant heat cannot be obtained from the sun, and power generation temporarily stops. End up. For this reason,
A heat exchanger in which necessary heat is stored in a heat storage material in advance and heats a fluid by radiating heat when sunlight is not incident, that is, a heat receiving and storing device is used.
【０００３】図３はこのような受蓄熱器を組み込んだ宇
宙軌道用発電プラントの一例を示すもので、例えば、ヘ
リウム、キセノンの混合ガスからなる作動流体は、受蓄
熱器１においてリフレクタ２によって集光された太陽光
によって加熱され、タービン３に導かれて膨張を遂げ
る。このため、タービン３が駆動されてこれに直結され
ている圧縮機４および発電機５が回される。タービン３
内で仕事を終えた作動流体は、再生器６に導入され、こ
こで圧縮機４から導かれる作動流体を予熱して温度降下
し、さらにラジエータ７を通って宇宙空間に熱を放出し
てより低温となり、圧縮機４に導入されて加圧された
後、再生器６に送られる。再生器６には上述したタービ
ン３の排気が流れており、ここで低温の作動流体は高温
の作動流体によって予熱され、その後受蓄熱器１に供給
される。再生器６には宇宙軌道用発電プラントには必須
の小型、軽量化が実現可能なストリップフィン・プレー
トフィンを用いたカウンターフロー方式のプレートフィ
ン型熱交換器が用いられている。 図４はかかる発電プ
ラントに用いられる受蓄熱器１の一例を示している。す
なわち、図において、受蓄熱器１の胴８の一端に設けら
れた作動流体入口９から胴８内に導かれた作動流体は、
環状のマニホールド１０に流れてそこから各蓄熱材付伝
熱管１１に分配される。この蓄熱材付伝熱管１１は全体
形状がＵ字状に形成され、作動流体は初めに蓄熱材付伝
熱管１１の入口側に流れ、この間に胴８の他端に設けら
れたアパーチャ１２を経て胴８内に導かれる太陽光から
輻射熱を受取り、温度が上昇する。FIG. 3 shows an example of a power generation plant for a space orbit incorporating such a heat storage / storage device. For example, a working fluid composed of a mixed gas of helium and xenon is collected by a reflector 2 in the heat storage / storage device 1. It is heated by the shining sunlight and guided to the turbine 3 to expand. Therefore, the turbine 3 is driven and the compressor 4 and the generator 5 directly connected to the turbine 3 are rotated. Turbine 3
The working fluid that has finished its work inside is introduced into the regenerator 6, where the working fluid introduced from the compressor 4 is preheated to lower the temperature, and further passes through the radiator 7 to release heat to outer space, The temperature becomes low, and after being introduced into the compressor 4 and pressurized, it is sent to the regenerator 6. The exhaust gas of the turbine 3 described above flows through the regenerator 6, where the low-temperature working fluid is preheated by the high-temperature working fluid, and then supplied to the heat storage / storage device 1. The regenerator 6 is a counter-flow type plate fin type heat exchanger using strip fins and plate fins, which can be reduced in size and weight, which is essential for a power plant for space orbit. FIG. 4 shows an example of the heat storage / storage device 1 used in such a power generation plant. That is, in the figure, the working fluid introduced from the working fluid inlet 9 provided at one end of the body 8 of the heat storage / storage device 1 into the body 8 is
It flows into the annular manifold 10 and is distributed from there to the heat transfer tubes with heat storage material 11. The heat transfer tube with heat storage material 11 is formed in a U shape as a whole, and the working fluid first flows to the inlet side of the heat transfer tube with heat storage material 11 and, during this time, passes through an aperture 12 provided at the other end of the body 8. Radiant heat is received from the sunlight guided into the body 8, and the temperature rises.
【０００４】一方、蓄熱材付伝熱管１１の出口側には環
状の出口マニホールド１３が接続されており、各蓄熱材
付伝熱管１１内を流れた作動流体は、この出口マニホー
ルド１３に集められて作動流体出口１４を介して外部に
送気される。なお、図中符号１５は蓄熱材付伝熱管１１
を支持する支持リングを、また符号１６は断熱材をそれ
ぞれ示している。On the other hand, an annular outlet manifold 13 is connected to the outlet side of the heat transfer tube with heat storage material 11, and the working fluid flowing through each heat transfer tube with heat storage material 11 is collected in this outlet manifold 13. Air is sent to the outside through the working fluid outlet 14. In addition, the code | symbol 15 in the figure is the heat transfer tube 11 with a heat storage material.
The reference numeral 16 indicates a support ring for supporting the heat insulating material, and the reference numeral 16 indicates a heat insulating material.
【０００５】[0005]
【発明が解決しようとする課題】上記したように、太陽
光はアパーチャ１２から入射し、蓄熱材付伝熱管１１に
照射されるが、照射された熱の一部は断熱材１６を経て
胴８の外表面に至り、宇宙空間へと放熱される。この放
熱量はリフレクタ２からの照射熱の１０％程度であり、
この放熱量を低減できればリフレクタ２の集光面積の削
減につながり、宇宙軌道用発電プラントのコンパクト
化、軽量化に大きく寄与する。また、各機器をつなぐ配
管内での作動流体の圧力損失は、発電効率に大きな影響
を与えるので圧力損失をできるだけ小さくすることが肝
要である。すなわち、圧力損失の低減が可能であれば、
タービン３での熱落差が大きくなり、発電出力を増大さ
せることができる。As described above, sunlight enters from the aperture 12 and is radiated to the heat transfer tube with heat storage material 11. However, a part of the radiated heat passes through the heat insulating material 16 and the body 8 It reaches the outer surface of the and is radiated to outer space. This amount of heat radiation is about 10% of the heat radiated from the reflector 2,
If this amount of heat radiation can be reduced, it leads to a reduction in the light-collecting area of the reflector 2 and greatly contributes to the compactness and weight reduction of the power generation plant for space orbit. Further, the pressure loss of the working fluid in the pipes connecting the respective devices greatly affects the power generation efficiency, so it is important to minimize the pressure loss. That is, if it is possible to reduce the pressure loss,
The heat drop in the turbine 3 becomes large, and the power generation output can be increased.
【０００６】そこで、本発明の目的は受蓄熱器の熱損失
および配管内での圧力損失を減少させ、これにより宇宙
軌道用発電プラントのコンパクト化、軽量化を図ること
のできる再生一体型受蓄熱器を提供することにある。Therefore, an object of the present invention is to reduce the heat loss of the heat storage device and the pressure loss in the piping, thereby making it possible to make the power plant for space orbit compact and lightweight, and to realize the integrated heat storage device with regeneration. To provide a container.
【０００７】[0007]
【課題を解決するための手段】本発明は上記の目的を達
成するために、胴の内面に倣い、かつ円周方向に互いの
間隔が一定になるように配置された多数の蓄熱材付伝熱
管を有し、太陽光が胴の一側に設けられたアパーチャか
ら内部に導かれ、各蓄熱材付伝熱管の外表面に直接投射
されるようになっている受蓄熱器において、受蓄熱器の
胴の外側に受蓄熱器本体の軸を共有するように、輻射プ
レート、再生器および断熱材をこの順に設置したことを
特徴とするものである。In order to achieve the above-mentioned object, the present invention has a large number of heat storage materials arranged along the inner surface of the body and arranged so that the distance between them is constant in the circumferential direction. A heat storage / reception device having a heat pipe, in which sunlight is guided inside through an aperture provided on one side of the body and is directly projected onto the outer surface of each heat transfer pipe with heat storage material. The radiation plate, the regenerator, and the heat insulating material are installed in this order on the outer side of the body of the so as to share the shaft of the heat storage / storage device main body.
【０００８】[0008]
【作用】アパーチャを通して受蓄熱器の胴内に入射した
太陽エネルギの大部分は蓄熱材付伝熱管に熱として蓄え
られる。これ以外に蓄熱材付伝熱管で吸収できなかった
熱は受蓄熱器本体の胴表面から再生器に伝導され、ここ
で再生器内を流れる作動流体に吸収される。従来の受蓄
熱器は受蓄熱器本体の外周に受蓄熱器の中心軸を共有す
る形で断熱材を設置するようにしていたが、断熱材だけ
では宇宙空間への放熱が止められない。本発明はこの熱
を再生器で吸収するようにしたので、宇宙空間への放熱
量を大幅に削減することが可能になる。なお、多層の金
属泊により構成される輻射プレートは蓄熱材付伝熱管に
入射する太陽光および高温の蓄熱材付伝熱管からの輻射
熱を遮断する。さらに、このように構成することにより
再生器で熱交換を行って加熱された作動流体を受蓄熱器
に導く配管の長さを短縮することができる。Most of the solar energy entering the shell of the heat storage device through the aperture is stored as heat in the heat transfer tube with the heat storage material. In addition to this, the heat that cannot be absorbed by the heat transfer tube with the heat storage material is transferred from the body surface of the heat storage / storage device main body to the regenerator, where it is absorbed by the working fluid flowing in the regenerator. In the conventional heat storage / storage device, the heat insulating material is installed on the outer periphery of the heat storage / storage device body so as to share the central axis of the heat storage / storage device. However, the heat insulating material alone cannot stop heat radiation to outer space. According to the present invention, this heat is absorbed by the regenerator, so that the amount of heat released to outer space can be significantly reduced. In addition, the radiant plate constituted by a multi-layered metal plate blocks sunlight entering the heat transfer tube with the heat storage material and radiant heat from the high temperature heat transfer tube with the heat storage material. Further, with such a configuration, it is possible to shorten the length of the pipe that conducts heat exchange in the regenerator and guides the heated working fluid to the heat storage / storage device.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図面を参照して説
明する。図１は本発明による再生器一体型の受蓄熱器を
示すもので、受蓄熱器の胴８の外側に受蓄熱器本体の軸
を共有するように輻射プレート２１、再生器２２および
断熱材２３を順次設けている。蓄熱材付伝熱管１１にお
いてリフレクタ２（図３参照）によって集光された太陽
光によって加熱された作動流体は、伝熱管ガス出口２４
によりタービン３へ流れ膨張した後、タービンガス入口
２５により再生器２２に流れ、圧縮機４から導かれた作
動流体を予熱して温度降下し、再生器ガス出口２６より
圧縮機４で圧縮され、再び圧縮機ガス入口２７より再生
器２２に流入した後、蓄熱材付伝熱管１１に流れて再加
熱される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a regenerator-integrated heat storage / accumulation unit according to the present invention. A radiation plate 21, a regenerator 22, and a heat insulating material 23 are provided outside the body 8 of the heat storage / storage unit so as to share the axis of the heat storage / storage unit. Are provided in sequence. The working fluid heated by the sunlight collected by the reflector 2 (see FIG. 3) in the heat transfer tube with heat storage material 11 is heated by the heat transfer tube gas outlet 24.
And then expands to the turbine 3 by the turbine gas inlet 25, flows into the regenerator 22 through the turbine gas inlet 25, preheats the working fluid introduced from the compressor 4, lowers the temperature, and is compressed in the compressor 4 through the regenerator gas outlet 26. After flowing into the regenerator 22 from the compressor gas inlet 27 again, it flows into the heat transfer tube with heat storage material 11 and is reheated.
【００１０】図２（ａ）（ｂ）は図１において再生器２
２をＡ矢視およびＢ矢視方向からそれぞれ見た図であ
る。再生器２２は宇宙軌道用発電プラントには必須の小
型、軽量化が可能なストリップ・プレートフィンを用い
たカウンターフロー方式の熱交換器を用いており、プレ
ート間を交互に高温流体と低温流体を流すため、入口お
よび出口において流路を交互に塞いだ構造となってい
る。タービン３を出た高温の作動流体はタービンガス入
口２８より再生器２２に流入し、再生器ガス出口２９よ
り圧縮機４へ流れ、圧縮機４を出た作動流体は圧縮機ガ
ス入口３０より再生器２２に入り、伝熱管ガス入口３１
より蓄熱材付伝熱管１１に流入する。2A and 2B are regenerators 2 shown in FIG.
FIG. 2 is a view of 2 viewed from the direction of arrow A and the direction of arrow B, respectively. The regenerator 22 uses a counter-flow type heat exchanger that uses strip / plate fins, which are indispensable for power generation plants for space orbit, and can be made compact and lightweight. In order to flow, the flow path is alternately closed at the inlet and the outlet. The high-temperature working fluid that has exited the turbine 3 flows into the regenerator 22 from the turbine gas inlet 28, flows from the regenerator gas outlet 29 to the compressor 4, and the working fluid that exits the compressor 4 is regenerated from the compressor gas inlet 30. Enter the vessel 22 and heat transfer tube gas inlet 31
It flows into the heat transfer tube with heat storage material 11.
【００１１】[0011]
【発明の効果】以上説明したように本発明によれば、受
蓄熱器の胴の外側に受蓄熱器本体の軸を共有するように
輻射プレート、再生器および断熱材をこの順に設置する
ようにしたので、受蓄熱器本体からの熱損失を防ぎ、配
管内での圧力損失を減少させることができ、宇宙軌道用
発電プラントのコンパクト化、軽量化を図ることができ
るという優れた効果を奏する。As described above, according to the present invention, the radiation plate, the regenerator, and the heat insulating material are installed in this order outside the body of the heat storage / storage device so as to share the shaft of the main body of the heat storage / storage device. Therefore, it is possible to prevent the heat loss from the main body of the heat storage / storage device, reduce the pressure loss in the pipe, and achieve an excellent effect that the power plant for space orbit can be made compact and lightweight.
【図１】本発明による再生器一体型の受蓄熱器の一実施
例を示す斜視図。FIG. 1 is a perspective view showing an embodiment of a regenerator-integrated heat storage / storage device according to the present invention.
【図２】図１に示される再生器の作動流体出入口面を示
す図。2 is a view showing a working fluid inlet / outlet surface of the regenerator shown in FIG. 1. FIG.
【図３】従来の宇宙軌道用発電プラントの一例を示す構
成図。FIG. 3 is a configuration diagram showing an example of a conventional space orbit power generation plant.
【図４】従来の受蓄熱器の一例を示す斜視図。FIG. 4 is a perspective view showing an example of a conventional heat storage / storage device.
１…受蓄熱器、１１…蓄熱材付伝熱管、２１…輻射プレ
ート、２２…再生器 ２３…断熱材DESCRIPTION OF SYMBOLS 1 ... Heat storage device, 11 ... Heat transfer tube with heat storage material, 21 ... Radiation plate, 22 ... Regenerator 23 ... Thermal insulation material
Claims (1)
間隔が一定になるように配置された多数の蓄熱材付伝熱
管を有し、太陽光が前記胴の一側に設けられたアパーチ
ャから内部に導かれ、前記各蓄熱材付伝熱管の外表面に
直接投射されるようになっている受蓄熱器において、受
蓄熱器の胴の外側に受蓄熱器本体の軸を共有するよう
に、輻射プレート、再生器および断熱材をこの順に設置
したことを特徴とする再生器一体型受蓄熱器。1. A plurality of heat transfer tubes with a heat storage material arranged along the inner surface of the body and having a constant interval in the circumferential direction, and sunlight is provided on one side of the body. In the heat receiver which is guided from the aperture to the inside and is projected directly onto the outer surface of each heat transfer tube with heat storage material, the axis of the heat receiver body is shared outside the body of the heat receiver. As described above, the regenerator-integrated heat storage device is characterized in that the radiation plate, the regenerator, and the heat insulating material are installed in this order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3325454A JPH05162700A (en) | 1991-12-10 | 1991-12-10 | Regenerator integrated heat receiver-accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3325454A JPH05162700A (en) | 1991-12-10 | 1991-12-10 | Regenerator integrated heat receiver-accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05162700A true JPH05162700A (en) | 1993-06-29 |
Family
ID=18177050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3325454A Pending JPH05162700A (en) | 1991-12-10 | 1991-12-10 | Regenerator integrated heat receiver-accumulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05162700A (en) |
-
1991
- 1991-12-10 JP JP3325454A patent/JPH05162700A/en active Pending
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