JPH01147257A - Heat exchanging method for flow down type solar heat collector - Google Patents
Heat exchanging method for flow down type solar heat collectorInfo
- Publication number
- JPH01147257A JPH01147257A JP62182940A JP18294087A JPH01147257A JP H01147257 A JPH01147257 A JP H01147257A JP 62182940 A JP62182940 A JP 62182940A JP 18294087 A JP18294087 A JP 18294087A JP H01147257 A JPH01147257 A JP H01147257A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- flow down
- heat receiving
- flow
- receiving medium
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract description 9
- 239000007788 liquid Substances 0.000 claims description 22
- 230000006399 behavior Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000034 Plastomer Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/60—Solar heat collectors using working fluids the working fluids trickling freely over absorbing elements
-
- 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
- Y02E10/44—Heat exchange systems
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)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） ＝１− 本発明は、流下式太陽集熱器の熱交換方法に係る。[Detailed description of the invention] (Industrial application field) =1- The present invention relates to a heat exchange method for a downstream type solar collector.
（従来の技術）
受熱板の上方位置から当該受熱板に沿って受熱媒体液を
下向きに流す流下方法は周知である。(Prior Art) A method of flowing a heat-receiving medium liquid downward from a position above the heat-receiving plate along the heat-receiving plate is well known.
（発明が解決しようとする問題点）
こうした従来技術の集熱器は、他の形式の平板型集熱器
に比べて用いられる受熱媒体液の流量が多く、比較的少
量の受熱媒体液を流下させることが困難であるとされて
きた。(Problems to be Solved by the Invention) These conventional heat collectors use a larger flow rate of the heat receiving medium liquid compared to other types of flat plate type heat collectors, and a relatively small amount of the heat receiving medium liquid flows down. It has been considered difficult to do so.
開放型の流下式集熱器では、受熱媒体液の流下速度が早
くまた流量も比較的多いことから集熱器の丈が高くなる
欠点があり、流下式集熱器の設置上での制約となってい
る。また密封型の集熱器では、流量が極〈少量であると
流れが蛇行してしまい、流れの空白部分ができて熱交換
が不安定となる問題点がある−０
（問題点を解決するための手段）
本発明は、集熱器の受熱板に沿って横向きに互い違いの
流下経路を設け、この流下経路に沿って受熱媒体液を流
し、こうして少量の受熱媒体液を受熱板全面に行き渡ら
せ、最下部の流下経路の端で受熱媒体液を集めるように
なっている。In open-type flow-down type heat collectors, the flow rate of the heat-receiving medium liquid is fast and the flow rate is relatively large, so the length of the heat collector is high, which is a limitation in the installation of flow-down type heat collectors. It has become. In addition, with a sealed heat collector, if the flow rate is extremely small, the flow will meander, creating blank areas in the flow and making heat exchange unstable. The present invention provides alternating flow paths laterally along the heat receiving plate of a heat collector, allows the heat receiving medium liquid to flow along the flow paths, and thus distributes a small amount of the heat receiving medium liquid over the entire surface of the heat receiving plate. The heat receiving medium liquid is collected at the end of the flow path at the bottom.
こうした方法により、前述した従来技術の問題点を解消
することができる。With such a method, the problems of the prior art described above can be solved.
（作用）
前述したように流下経路を設けて熱交換することにより
、開放型の流下式集熱器では集熱器の縦寸法に比べて流
下経路の距離を大幅に延長して、結果的に丈を短くする
ことができる。また密封型の流下式集熱器では少量の受
熱媒体液を受熱板全面に行き渡らせることができ、従来
のものよりも高い集熱温度で熱交換することができる。(Function) As mentioned above, by providing a flow path and exchanging heat, in an open type flow-down type heat collector, the distance of the flow path is significantly extended compared to the vertical dimension of the heat collector, and as a result, The length can be shortened. In addition, in a sealed type flow-down type heat collector, a small amount of the heat receiving medium liquid can be spread over the entire surface of the heat receiving plate, and heat can be exchanged at a higher heat collection temperature than in the conventional type.
（実施例）
第１図と第２図は、それぞれ受熱媒体法案内用の流下経
路２の設置パターン例を示す説明図である。いずれの例
も、流下経路２は受熱板ｌの一方の側から反対の側にか
けて横向きにほぼ直線状に延び、しかも僅かな下向きの
勾配が付けられている。これら流下経路２は上下に互い
違いの向きに設けられている。流下経路２の各々は流下
方向の端部２ａが下側に位置する流下経路の端部２ｂよ
りも内側に位置するように配置されている。(Example) FIG. 1 and FIG. 2 are explanatory diagrams each showing an example of an installation pattern of a downstream path 2 for use within a heat receiving medium bill. In both examples, the flow path 2 extends horizontally in a substantially straight line from one side of the heat receiving plate 1 to the opposite side, and has a slight downward slope. These flow paths 2 are provided vertically in alternating directions. Each of the downstream paths 2 is arranged such that the end 2a in the downstream direction is located inside the end 2b of the downstream path.
前記端部２ａおよび２ｂは、第１図の例ではある角度を
設けて互いに交差する向きに設置されている。これに対
し第２図の例では、端部２ａおよび２ｂはいずれも円弧
状に湾曲している。こうした端部形状は、集熱器の設置
角度並びに受熱媒体液の持つ粘度および液流量に応じて
選択することができる。In the example shown in FIG. 1, the ends 2a and 2b are arranged at a certain angle and intersect with each other. On the other hand, in the example shown in FIG. 2, both end portions 2a and 2b are curved in an arc shape. Such an end shape can be selected depending on the installation angle of the heat collector, the viscosity of the heat receiving medium liquid, and the liquid flow rate.
第３図と第４図は、それぞれ第１図と第２図に相当する
流下経路２を複合的に並列設置した例を ′示し
ている。FIGS. 3 and 4 show an example in which the downstream paths 2 corresponding to FIGS. 1 and 2 are installed in parallel in a complex manner.
こうした横向きの流下経路２に沿って経路の端に向けて
受熱媒体液が流される。受熱媒体液は、例えば参照番号
３で示すような液散布手段から最上部の流下経路２に供
給される。供給された受熱媒体液は流下経路２に沿って
横方向に流れ、流下方向の端部２ａを経て下側に位置す
る別の流下経路、とりわけ当該流下経路の端部２ｂに流
れ落ちる。モして受熱媒体液はこの流下経路にそって反
対向きに流下していき、前述した挙動を繰り返して最下
部の流下経路に至る。The heat-receiving medium liquid is flowed toward the end of the path along this horizontal downstream flow path 2. The heat-receiving medium liquid is supplied to the uppermost downstream path 2 from a liquid dispersion means as indicated by reference numeral 3, for example. The supplied heat receiving medium liquid flows laterally along the flow path 2, passes through the end 2a in the flow direction, and flows down to another flow path located below, particularly the end 2b of the flow path. The heat-receiving medium liquid then flows down in the opposite direction along this flow path, repeating the above-described behavior until it reaches the lowest flow path.
第５図と第６図は、それぞれこうした流下経路を設置し
である集熱器の具体例を示す断面図である。第５図は流
下経路２が受熱板ｌの表面に設置され当該流下経路を透
明体４が覆う開放流下式集熱器の例を示し、第６図のい
わゆる密封流下式集熱器では受熱板ｌの裏側に流下経路
２が設けられている。FIGS. 5 and 6 are cross-sectional views showing specific examples of heat collectors provided with such flow paths, respectively. Fig. 5 shows an example of an open flow type heat collector in which the flow path 2 is installed on the surface of the heat receiving plate l and the flow path is covered with a transparent body 4; A flow path 2 is provided on the back side of the l.
前述した流下経路２は様々な方法で形成することができ
る。例えば、受熱板自体を機械的に僅かに変形させて形
成された凹所または四所を案内路として利用することも
できる。好ましくは、耐候性に優れたエラストマまたは
プラストマ合成材料を使用することができる。こうした
材料は、塗装やシルクスクリーン印刷、張り付けあるい
は加熱転圧等の技術により受熱板の表面に接着すること
ができる。The aforementioned flow path 2 can be formed in various ways. For example, it is also possible to use recesses or four locations formed by slightly mechanically deforming the heat receiving plate itself as a guide path. Preferably, an elastomer or plastomer synthetic material with excellent weather resistance can be used. Such materials can be adhered to the surface of the heat receiving plate by techniques such as painting, silk screen printing, pasting, or heat rolling.
受熱板ｌには、ステンレスやアルミニウムのよ＝５−
うな金属性のものはもとより、繊維強化ポリエステル、
ポリカーボネイト、メタクリル樹脂等の合成樹脂板、あ
るいはガラス板やセラミック材料に属するものがある。The heat receiving plate l can be made of metals such as stainless steel or aluminum, as well as fiber-reinforced polyester,
There are synthetic resin plates such as polycarbonate and methacrylic resin, glass plates, and ceramic materials.
あるいはシリコン系やフッソ系のシート材料も受熱板と
して使用することができる。流下経路素材の接着作業は
、受熱板のサイトトリム加工に前後して、受熱板面の脱
脂処理あるいは当該受熱板面への黒色塗装や選択吸収膜
処理に前後して、またはこうした作業に平行して行なわ
れる。Alternatively, silicone-based or fluorine-based sheet materials can also be used as the heat receiving plate. The work of adhering the flow path material should be done before or after the site trimming of the heat receiving plate, before or after degreasing the heat receiving plate surface, or before or after the black painting or selective absorption film treatment on the heat receiving plate surface, or in parallel with such work. It is done.
（発明の効果）
受熱板に沿って流下経路を横方向に互い違いに設けるこ
とで必要とする少量の受熱媒体液を板面に行き渡らせた
状態で熱交換を行なうことができる。開放流下式集熱器
の場合では、受熱板の丈を大幅に短縮することができる
。こうした熱交換方法は、従来の流下式集熱器の汎用性
をさらに高めることができる。(Effects of the Invention) By providing the flow paths alternately in the lateral direction along the heat receiving plate, heat exchange can be performed while the required small amount of heat receiving medium liquid is distributed over the plate surface. In the case of an open flow type heat collector, the length of the heat receiving plate can be significantly shortened. Such a heat exchange method can further enhance the versatility of conventional flowing-down type heat collectors.
流下経路を横方向に設けこの経路に沿って熱交換するた
め、必要に応じて所望の横方向に長く丈の短い流下式集
熱器を利用することもできる。Since a downstream path is provided in the lateral direction and heat is exchanged along this path, a downstream type heat collector that is long and short in the desired lateral direction can be used as required.
さらにこうした横向きの熱交換方法によれば、流下経路
を移動する受熱媒体液は従来の縦方向流下経路の場合に
比べて流速が比較的遅く滞留時間が長いため、熱交換の
効率面からも都合がよい。Furthermore, according to such a horizontal heat exchange method, the flow rate of the heat receiving medium liquid moving in the downstream flow path is relatively slow and the residence time is long compared to the case of the conventional vertical flow path, so it is not convenient in terms of heat exchange efficiency. Good.
第１図と第２図は、それぞれ本発明の熱交換方法を実施
するために用いられる受熱板の流下経路パターンの実例
を示す説明図である。
第３図と第４図は、それぞれ前記流下経路パターンの他
の例を示す説明図である。
第５図と第６図は、それぞれ流下経路の適用例を示す断
面説明図である。
ｌ・命・受熱板
２・・・流下経路
２ａ、２ｂ・・・流下経路の端部
３・・・液散布手段
４・・・透明体FIGS. 1 and 2 are explanatory diagrams showing examples of flow path patterns of heat receiving plates used to implement the heat exchange method of the present invention, respectively. FIGS. 3 and 4 are explanatory diagrams showing other examples of the downstream path patterns, respectively. FIG. 5 and FIG. 6 are cross-sectional explanatory diagrams each showing an example of application of the flow path. l・Life・Heat receiving plate 2...Downstream paths 2a, 2b...Ends of downstream paths 3...Liquid dispersion means 4...Transparent body
Claims (1)
僅かな下向き勾配を付けられた受熱媒体液案内用の流下
経路を互い違いの向きに設け、これら流下経路の各々は
流下方向の端部が下側に位置する流下経路の端部よりも
内側に位置するように配置されており、受熱板面に散布
された受熱媒体液は当該流下経路に沿って横方向に流れ
、流下方向の端部を経て下側に位置する別の流下経路に
流れ落ち、さらにこの流下経路に沿って横方向に流れ、
こうして受熱媒体液は受熱板全面にわたり交互に向きを
変えて流れて受熱板との熱交換を行ない、最下部の流下
経路の端で受熱媒体液を受ける流下式太陽集熱器の熱交
換方法。Along the heat-receiving plate of the heat collector, flow paths for guiding the heat-receiving medium liquid are provided in alternating directions, extending laterally in a substantially straight line and having a slight downward slope, and each of these flow paths has an end in the flow direction. The heat-receiving medium liquid sprinkled on the heat-receiving plate surface flows laterally along the flow path, and the flow direction is It flows down through the end into another downstream flow path, and then flows laterally along this flow path,
In this way, the heat-receiving medium liquid flows over the entire surface of the heat-receiving plate while changing its direction alternately, exchanging heat with the heat-receiving plate, and receives the heat-receiving medium liquid at the end of the lowermost flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62182940A JP2655327B2 (en) | 1987-07-21 | 1987-07-21 | Heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62182940A JP2655327B2 (en) | 1987-07-21 | 1987-07-21 | Heat exchange equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01147257A true JPH01147257A (en) | 1989-06-08 |
| JP2655327B2 JP2655327B2 (en) | 1997-09-17 |
Family
ID=16127030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62182940A Expired - Fee Related JP2655327B2 (en) | 1987-07-21 | 1987-07-21 | Heat exchange equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2655327B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724479A (en) * | 1994-12-28 | 1998-03-03 | Takahashi; Kei | Fluid flow controlling member |
| US5878807A (en) * | 1996-02-16 | 1999-03-09 | Takahashi; Kei | Fluid channeling unit |
| US5954129A (en) * | 1996-02-14 | 1999-09-21 | Takahashi; Kei | Flow control unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50122740A (en) * | 1974-03-11 | 1975-09-26 |
-
1987
- 1987-07-21 JP JP62182940A patent/JP2655327B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50122740A (en) * | 1974-03-11 | 1975-09-26 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724479A (en) * | 1994-12-28 | 1998-03-03 | Takahashi; Kei | Fluid flow controlling member |
| US5954129A (en) * | 1996-02-14 | 1999-09-21 | Takahashi; Kei | Flow control unit |
| US5878807A (en) * | 1996-02-16 | 1999-03-09 | Takahashi; Kei | Fluid channeling unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2655327B2 (en) | 1997-09-17 |
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