JPS646381B2 - - Google Patents
Info
- Publication number
- JPS646381B2 JPS646381B2 JP57226909A JP22690982A JPS646381B2 JP S646381 B2 JPS646381 B2 JP S646381B2 JP 57226909 A JP57226909 A JP 57226909A JP 22690982 A JP22690982 A JP 22690982A JP S646381 B2 JPS646381 B2 JP S646381B2
- Authority
- JP
- Japan
- Prior art keywords
- heat collecting
- pipe
- heat
- tube
- heat collection
- 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.)
- Expired
Links
- 238000010248 power generation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
-
- 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
- Y02E10/47—Mountings or tracking
Landscapes
- 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)
- Supports For Pipes And Cables (AREA)
Description
【発明の詳細な説明】
本発明は太陽熱発電プラント集熱装置における
集熱管の支持方法に係り、特に集熱中の熱ひずみ
による集熱管のたわみの防止に好適な集熱管の支
持方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for supporting a heat collecting tube in a solar thermal power generation plant heat collecting device, and more particularly to a method for supporting a heat collecting tube suitable for preventing deflection of the heat collecting pipe due to thermal strain during heat collection.
従来の太陽熱発電プラント集熱装置の集熱管は
構造上から肉厚、外径、長さが制約されるため、
曲げ剛性が不足していた。第１図は集熱装置の構
造図である。図において、１は曲面鏡、２は集熱
管、３は真空ガラス管、４は太陽光線である。集
熱管周上の集光分布の偏りから集熱面上に温度差
が発生し、このため熱ひずみが生じるが、曲げ剛
性が不足していたので、過酷な運転によつては、
集熱管２が大きくたわみ、外側の真空ガラス管３
を接触破損する、あるいは曲面鏡１の焦点位置か
ら集熱管２の位置がズレて光がもれるため集熱効
率が低下するなどの欠点があつた。 Because the thickness, outer diameter, and length of the heat collection tubes in conventional solar thermal power generation plant heat collection devices are limited due to their structure,
Bending rigidity was insufficient. FIG. 1 is a structural diagram of a heat collecting device. In the figure, 1 is a curved mirror, 2 is a heat collecting tube, 3 is a vacuum glass tube, and 4 is sunlight. A temperature difference occurs on the heat collecting surface due to the uneven distribution of light on the circumference of the heat collecting tube, which causes thermal strain, but as the bending rigidity was insufficient, under severe operation,
The heat collecting tube 2 is greatly bent, and the outer vacuum glass tube 3
There are disadvantages such as contact damage to the heat collecting tube 2, or the position of the heat collecting tube 2 is shifted from the focal position of the curved mirror 1, causing light to leak, resulting in a decrease in heat collecting efficiency.
本発明の目的は集熱管周上の集光分布の偏りか
ら生ずる熱ひずみにもとづくたわみを減少させる
ことにより、集熱管と外側の真空ガラス管の接触
による真空ガラス管の破損の恐れのない、あるい
は曲面鏡の焦点位置から集熱管の位置がズレて光
がもれることによる集熱装置の集熱効率の低下す
ることのない集熱管の支持方法を提供することに
ある。 The purpose of the present invention is to eliminate the risk of breakage of the vacuum glass tube due to contact between the heat collection tube and the outer vacuum glass tube by reducing the deflection due to thermal strain caused by the uneven distribution of light condensed on the circumference of the heat collection tube. It is an object of the present invention to provide a method for supporting a heat collecting tube that does not reduce the heat collecting efficiency of a heat collecting device due to light leakage due to the position of the heat collecting tube being shifted from the focal position of a curved mirror.
本発明は前記目的を達成するため、太陽光を集
光する曲面鏡と、この曲面鏡の焦点位置に配置さ
れた集熱管と、この集熱管を支持する配管支持部
とを有する太陽熱発電プラントの集熱装置におけ
る集熱管の支持方法において、集熱管に強制的に
ねじりを与えて、ねじり応力の加わつた状態で、
集熱管を配管支持部により支持することを特徴と
する。 In order to achieve the above-mentioned object, the present invention provides a solar thermal power generation plant having a curved mirror that collects sunlight, a heat collecting pipe arranged at the focal point of the curved mirror, and a piping support part that supports the heat collecting pipe. In a method of supporting a heat collecting pipe in a heat collecting device, the heat collecting pipe is forcibly twisted and under torsional stress,
It is characterized in that the heat collecting pipe is supported by a pipe support part.
次に本発明の原理を第２図及び第３図を用いて
説明する。 Next, the principle of the present invention will be explained using FIGS. 2 and 3.
第２図は集熱中の集熱管を上部から見た、たわ
みの概略図である。図において、１は曲面鏡、２
は集熱管、４は太陽光線、５は配管支持部であ
る。集光分布の偏りにより集熱管２は曲面鏡１側
が、より高温になるため曲面鏡１側に集熱管２は
たわむ。従来の集熱管は一方向のみに、たわむた
め、配管の熱変形を吸収するためには、集熱管は
大きくたわんでしまう。 FIG. 2 is a schematic view of the deflection of the heat collecting tube seen from above during heat collection. In the figure, 1 is a curved mirror, 2
4 is a heat collecting pipe, 4 is a solar ray, and 5 is a pipe support part. Due to the bias in the focused light distribution, the heat collecting tube 2 becomes hotter on the curved mirror 1 side, so the heat collecting tube 2 bends toward the curved mirror 1 side. Conventional heat collecting pipes bend only in one direction, so in order to absorb the thermal deformation of the pipes, the heat collecting pipes have to bend significantly.
第３図は集熱管に比例限度内の内部応力が生じ
る程度に集熱管にねじり外力を加えた場合と加え
ない場合の集熱管のたわみの概略図である。同図
において、２は集熱管、５は配管支持部、実線は
ねじり外力を加えた場合のたわみ、破線は外力を
加えない場合のたわみ、ｘは示されるたわみは上
方から見た配管のたわみ、ｙで示されるたわみは
横方向から見たたわみである。ねじりを加えられ
ると同図の集熱管２は、ら旋形に曲がることによ
り配管の熱膨張を吸収するため、ねじりを加えな
い場合に比べて、たわみが小さくなる。 FIG. 3 is a schematic diagram of the deflection of the heat collecting tube when an external torsional force is applied to the heat collecting tube to the extent that an internal stress within the proportional limit is generated in the heat collecting tube and when it is not applied. In the figure, 2 is the heat collecting pipe, 5 is the pipe support part, the solid line is the deflection when an external torsional force is applied, the broken line is the deflection when no external force is applied, x is the deflection shown is the deflection of the pipe as seen from above, The deflection indicated by y is the deflection seen from the lateral direction. When twisted, the heat collecting pipe 2 shown in the figure bends into a spiral shape to absorb the thermal expansion of the pipe, so that the deflection becomes smaller than when the pipe is not twisted.
以下、本発明の一実施例を第４図により説明す
る。本図において２は集熱管、５′は配管が溶接
などで固定された配管支持部、５は配管が熱膨張
で伸びるにつれ、ねじりが加わる構造の配管支持
部、６は配管が熱膨張で伸びるにつれ、ねじりを
与えるためのら旋形のガイドみぞである。本実施
例によれば配管が高温になり熱膨張して伸びるに
つれ、ねじりが、より大きく加わるため高温にな
り、たわみがより大きくなる場合でも、たわみを
さらに減少させる効果がある。第５図は上述の実
施例の変形例である。本図において２は集熱管、
５′は配管が溶接などで固定された配管支持部、
５は配管の伸びは集熱管をスライドさせることに
より逃がすが、集熱管の回転は拘束する構造の配
管支持部、６は配管支持部のガイドみぞ、７は集
熱管を途中で切断して強制的にねじりを加えた状
態で溶接するための集熱管の溶接線である。本実
施例によれば、ねじりがあらかじめ与えられてお
り、熱膨張により配管がたわむにつれ、ねじりに
よるせん断応力が緩和されるため、材料の使用強
度上は前述の実施例に比べ有利となる効果があ
る。 An embodiment of the present invention will be described below with reference to FIG. In this figure, 2 is a heat collecting pipe, 5' is a pipe support part to which the pipe is fixed by welding, etc., 5 is a pipe support part with a structure that is twisted as the pipe expands due to thermal expansion, and 6 is a pipe support part where the pipe expands due to thermal expansion. This is a spiral guide groove that provides twisting. According to this embodiment, as the piping becomes hotter and expands due to thermal expansion, the twist becomes larger, so even if the temperature increases and the deflection becomes larger, there is an effect of further reducing the deflection. FIG. 5 shows a modification of the above-described embodiment. In this figure, 2 is a heat collecting pipe,
5' is the pipe support part where the pipe is fixed by welding etc.
5 is a pipe support with a structure that allows the elongation of the pipe to be released by sliding the heat collecting pipe, but restrains the rotation of the heat collecting pipe, 6 is a guide groove in the pipe support, and 7 is a forced heat collecting pipe that is cut in the middle. This is the welding line of the heat collecting pipe that is to be welded in a twisted state. According to this example, the torsion is given in advance, and as the pipe bends due to thermal expansion, the shear stress due to the torsion is alleviated, which has an advantageous effect in terms of the strength of the material compared to the previous example. be.
本発明によれば太陽熱発電プラント集熱管のた
わみを減少することができるので、集熱管と外側
の真空ガラス管の接触による真空ガラス管の破損
を防止すること、あるいは曲面鏡の焦点位置から
集熱管の位置がズレで光がもれるため集熱装置の
集熱効率が低下することなどを防止する効果があ
る。 According to the present invention, it is possible to reduce the deflection of the heat collection tube in a solar thermal power generation plant, so it is possible to prevent damage to the vacuum glass tube due to contact between the heat collection tube and the outer vacuum glass tube, or to prevent the heat collection tube from being damaged due to contact between the heat collection tube and the outer vacuum glass tube. This has the effect of preventing the heat collection efficiency of the heat collection device from decreasing due to light leakage due to misalignment of the heat collection device.
第１図は太陽熱発電プラントの集熱装置の横断
面図、第２図は集熱中の従来の集熱管たわみの概
略図、第３図は本発明の原理の説明図、第４図は
本発明の実施例、第５図は本発明の変形例であ
る。
１……曲面鏡、２……集熱管、３……真空ガラ
ス管、４……太陽光線、５……配管支持部、６…
…ガイドみぞ、７……集熱管溶接線。
Figure 1 is a cross-sectional view of a heat collector in a solar thermal power generation plant, Figure 2 is a schematic diagram of the deflection of a conventional collector tube during heat collection, Figure 3 is an explanatory diagram of the principle of the present invention, and Figure 4 is the invention of the present invention. The embodiment shown in FIG. 5 is a modification of the present invention. DESCRIPTION OF SYMBOLS 1... Curved mirror, 2... Heat collection tube, 3... Vacuum glass tube, 4... Sunlight, 5... Piping support part, 6...
...Guide groove, 7... Heat collector pipe welding line.
Claims (1)
記集熱管の支持方法において、 前記集熱管に強制的にねじりを与えて、ねじり
応力の加わつた状態で、該集熱管を前記配管支持
部により支持することを特徴とする太陽熱発電プ
ラント集熱装置の集熱管の支持方法。[Scope of Claims] 1. A heat collection device for a solar thermal power generation plant, comprising: a curved mirror that collects sunlight; a heat collection pipe disposed at a focal position of the curved mirror; and a piping support section that supports the heat collection pipe. In the method for supporting the heat collecting pipe in the solar thermal power generation plant, the heat collecting pipe is forcibly twisted and the heat collecting pipe is supported by the piping support part in a state where torsional stress is applied. How to support the heat collection tube of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57226909A JPS59119139A (en) | 1982-12-27 | 1982-12-27 | Method for supporting heat collection pipes in solar thermal power generation plant heat collection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57226909A JPS59119139A (en) | 1982-12-27 | 1982-12-27 | Method for supporting heat collection pipes in solar thermal power generation plant heat collection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59119139A JPS59119139A (en) | 1984-07-10 |
| JPS646381B2 true JPS646381B2 (en) | 1989-02-03 |
Family
ID=16852495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57226909A Granted JPS59119139A (en) | 1982-12-27 | 1982-12-27 | Method for supporting heat collection pipes in solar thermal power generation plant heat collection equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59119139A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02145679U (en) * | 1989-05-16 | 1990-12-11 | ||
| JPH02145678U (en) * | 1989-05-16 | 1990-12-11 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869879B (en) * | 2017-05-09 | 2020-04-03 | 天津滨海光热技术研究院有限公司 | Application of heat collecting pipe mounting tool |
-
1982
- 1982-12-27 JP JP57226909A patent/JPS59119139A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02145679U (en) * | 1989-05-16 | 1990-12-11 | ||
| JPH02145678U (en) * | 1989-05-16 | 1990-12-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59119139A (en) | 1984-07-10 |
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