JPS58110988A - Particle circulating type heat exchanger - Google Patents
Particle circulating type heat exchangerInfo
- Publication number
- JPS58110988A JPS58110988A JP20799281A JP20799281A JPS58110988A JP S58110988 A JPS58110988 A JP S58110988A JP 20799281 A JP20799281 A JP 20799281A JP 20799281 A JP20799281 A JP 20799281A JP S58110988 A JPS58110988 A JP S58110988A
- Authority
- JP
- Japan
- Prior art keywords
- heated
- particles
- fluid
- heat
- heat transfer
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は熱交換装置に関し、より詳細には被加熱または
被冷却流体の旋回流を形成し、かつこの流体中に粒子を
混入して熱媒体との伝熱効率を向上せしめだ熱交換装置
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat exchange device, and more particularly to a heat exchange device that forms a swirling flow of a fluid to be heated or cooled, and mixes particles into this fluid to improve heat transfer efficiency with a heat medium. Related to Seshimeda heat exchange equipment.
従来、熱交換装置においては、たとえば加熱媒体と被加
熱流体を伝熱管の管壁を介して熱交換を行なわせていた
。しかしながらかかる従来の熱交換装置では加熱媒体、
または被加熱流体の流れが単相流の場合、熱伝達率が小
さいために伝熱面積を大きくする必要があシ、従って熱
交換装置が巨大化する傾向を避けえなかった。Conventionally, in a heat exchange device, heat is exchanged between, for example, a heating medium and a fluid to be heated through the tube wall of a heat transfer tube. However, in such conventional heat exchange devices, the heating medium,
Alternatively, when the flow of the fluid to be heated is a single-phase flow, the heat transfer coefficient is small, so it is necessary to increase the heat transfer area, and therefore, there is an unavoidable tendency for the heat exchange device to become large.
また、熱伝達率を高めるためにたとえば加熱媒体と被加
熱流体との温度差を大きくする手段がとられるが、被加
熱流体が熱に敏感な場合には熱の影響を極力少なくする
ために加熱媒体との温度差を極力小さくしなければなら
ず、熱伝達率の向上と熱不安定被加熱流体の保護とは両
立しがたい欠点があった。更に被加熱流体による伝熱管
内壁の腐食や被加熱流体の一部分解等による伝熱管内壁
への分解物などの付着などによって伝熱管の熱伝達率は
経時的に悪化し、設計時の熱伝達率を維持できなくなる
問題点があった。In addition, in order to increase the heat transfer coefficient, measures are taken to increase the temperature difference between the heating medium and the heated fluid, but if the heated fluid is sensitive to heat, heating is performed to minimize the influence of heat. The temperature difference with the medium must be made as small as possible, which has the drawback that it is difficult to simultaneously improve the heat transfer coefficient and protect the thermally unstable fluid to be heated. Furthermore, the heat transfer coefficient of the heat transfer tube deteriorates over time due to corrosion of the inner wall of the heat transfer tube due to the heated fluid and adhesion of decomposed products to the inner wall of the heat transfer tube due to partial decomposition of the heated fluid, etc. There was a problem that it became impossible to maintain.
そこで本発明はかかる従来の欠点を解消すべくなされた
ものであシ、たとえば被加熱流体の旋回流を形成せしめ
、かつ被加熱流体中に粒子を混入して加熱媒体と初加熱
、流体との熱伝達率を高め、また加熱媒体と被加熱流体
との減度差を小さくすることができるので被加熱流体が
熱に不安定的であっても異状昇温による熱分解を極力防
止することができ、伝熱管内壁への汚れ付着を防止し、
長期間にわたって熱交換装置の性能低下を防止すること
ができるなどの特長を有するものである。Therefore, the present invention has been made in order to eliminate such conventional drawbacks. For example, by forming a swirling flow of the fluid to be heated, and by mixing particles into the fluid to be heated, the heating medium and the initial heating and the fluid can be heated. Since it is possible to increase the heat transfer coefficient and to reduce the difference in decrement between the heating medium and the fluid to be heated, it is possible to prevent thermal decomposition due to abnormal temperature rise as much as possible even if the fluid to be heated is thermally unstable. This prevents dirt from adhering to the inner walls of the heat transfer tubes.
It has the advantage of being able to prevent performance deterioration of the heat exchange device over a long period of time.
すなわち本発明の粒子循環式熱交換装置は、ジャケット
を有する伝熱管と一１該伝熱管に連結され該伝熱管内を
流れる間に前記ジャケットを流れる熱媒体との熱交換に
よって加熱または冷却された、粒子を混入した被加熱ま
たは被冷却流体から該粒子を分離する固液分離器と、該
同液分離器の下流側に設けられ前記分離した粒子をあら
たな被加熱または被冷却流体と混合して前記伝熱管に送
る混合器とからなり、前記伝熱管の中に攪拌螺旋翼を設
けたことを特徴とするものである。That is, the particle circulation type heat exchange device of the present invention includes a heat exchanger tube having a jacket, and a heat exchanger that is connected to the heat exchanger tube and heated or cooled by heat exchange with a heat medium flowing through the jacket while flowing inside the heat exchanger tube. , a solid-liquid separator that separates particles from a fluid to be heated or cooled mixed with the particles, and a solid-liquid separator installed downstream of the liquid separator to mix the separated particles with a new fluid to be heated or cooled. and a mixer for feeding the heat to the heat exchanger tube, and is characterized in that a stirring spiral blade is provided in the heat exchanger tube.
以下、図面に示した実施例にもとづき本考案を説明する
。第１図は本発明の一例を示す概要図であり、ジャケッ
ト２を有する伝熱管１と、固液分離器３と混合器４とか
ら構成され、伝熱管１は固液分離器３を介して混合槽４
に連結され、この混合槽４は伝熱管１に連結されている
。The present invention will be explained below based on the embodiments shown in the drawings. FIG. 1 is a schematic diagram showing an example of the present invention, which is composed of a heat exchanger tube 1 having a jacket 2, a solid-liquid separator 3, and a mixer 4. Mixing tank 4
The mixing tank 4 is connected to the heat exchanger tube 1.
伝熱管１の管内には攪拌螺旋翼５が挿入されており、ま
たこの管内を流れる被加熱または被冷却流体には粒子が
混入されている。A stirring spiral blade 5 is inserted into the heat exchanger tube 1, and particles are mixed into the fluid to be heated or cooled flowing through the tube.
第２図は攪拌螺旋翼の第１実施例を示す縦断面図、第３
図はその横断面図であり、断＊亦−文字の金属板をねじ
ったねじり板８によって螺旋翼が形成され、伝熱管１中
に挿入されている。Figure 2 is a longitudinal sectional view showing the first embodiment of the stirring spiral blade;
The figure is a cross-sectional view of the same, in which a spiral blade is formed by a twisted plate 8 made by twisting a metal plate with the letters ``*'', and is inserted into the heat exchanger tube 1.
第４図は攪拌螺旋翼の第２実施例を示す縦断面図、第５
図はその横断面図であり、断面がＹ字型の金属板をねじ
ったねじり板９によって螺旋翼が形成されている。FIG. 4 is a longitudinal sectional view showing the second embodiment of the stirring spiral blade;
The figure is a cross-sectional view thereof, and a spiral wing is formed by a twisted plate 9 made by twisting a metal plate having a Y-shaped cross section.
第６図は攪拌螺旋翼の第３実施例を示す縦断面図、第７
図はその横断面であり、伝熱管１内には断面が十文字型
の金属板をねじったねじり板１０によって螺旋翼が形成
されている。FIG. 6 is a longitudinal sectional view showing the third embodiment of the stirring spiral blade;
The figure shows a cross section of the heat exchanger tube 1, and a spiral blade is formed inside the heat transfer tube 1 by a twisted plate 10 which is a twisted metal plate having a cross-shaped cross section.
第８図は第４実施例を示す縦断面図、第９図はその横断
面図であり、伝熱管１の管壁から螺旋翼９が突出してお
り、管１の中央部は空洞状になっている。FIG. 8 is a longitudinal cross-sectional view showing the fourth embodiment, and FIG. 9 is a cross-sectional view thereof.Helical blades 9 protrude from the tube wall of the heat transfer tube 1, and the center portion of the tube 1 is hollow. ing.
かかる螺旋翼は上記実施例のものを単一種類用いても良
いし、または適宜組合わせぞ用いることもでき、或は第
４実施例と第１〜第３実施例の組合せ、たとえば螺旋翼
９によって形成さ−れた空間に一文字型のねじり板８を
挿入することもできる。本発明においては前述のように
被加熱または被冷却流体中に粒子を混入するが、かかる
粒子は被加熱または被冷却流体と作用することがなけれ
ば、如何なるものであっても良く、たとえば銅、鉄、鉛
、コバルト、ニッケル。Such a spiral blade may be a single type of the above-mentioned embodiments, or may be used in appropriate combinations, or a combination of the fourth embodiment and the first to third embodiments, for example, the spiral wing 9 It is also possible to insert a single-letter-shaped torsion plate 8 into the space formed by. In the present invention, particles are mixed into the fluid to be heated or cooled as described above, but such particles may be of any material as long as they do not interact with the fluid to be heated or cooled, such as copper, Iron, lead, cobalt, nickel.
或はこれらの合金などの金属粒子、ガラス粒子。Or metal particles such as alloys of these, glass particles.
−コンクリート製粒などである。これら粒子の種類、粒
子大きさは被加熱または被冷却物質の性状に応じて適宜
選択され、その比重が被加熱または被冷却物質の比重よ
りも大きいことが好ましい。- Concrete granulation, etc. The type and particle size of these particles are appropriately selected depending on the properties of the substance to be heated or cooled, and it is preferable that the specific gravity thereof is greater than the specific gravity of the substance to be heated or cooled.
次に、かかる本発明の粒子循環式熱交換装置の機能を第
１図にもとづき、加熱の場合について説明する。まず、
被加熱物質６と前回の熱交換処理の後に分離された粒子
７を混合槽４で混入し、しかるのちに伝熱管１内に導く
。一方、ジャケット２には加熱媒体を流し、伝熱管１内
を流れる被加熱流体と粒子との混合流体との間で熱交換
を行なう。熱交換後、被加熱物質と粒子との混合流体は
固液分離器６で、熱交換により加熱された被加熱流体８
と粒子７とに分離され、加熱された被加熱流体８は目的
に応じて種種の工程に送られ、一方、粒子７は、混合器
４に送られ、ここであらたな被加熱物質６と混合され、
以下同様に再び伝熱管１に送られる。Next, the function of the particle circulation type heat exchanger of the present invention will be explained based on FIG. 1 in the case of heating. first,
The substance to be heated 6 and the particles 7 separated after the previous heat exchange treatment are mixed in a mixing tank 4, and then introduced into the heat exchanger tube 1. On the other hand, a heating medium is passed through the jacket 2, and heat exchange is performed between the mixed fluid of the fluid to be heated and the particles flowing inside the heat transfer tube 1. After the heat exchange, the mixed fluid of the substance to be heated and the particles is passed through the solid-liquid separator 6 into the heated fluid 8 heated by the heat exchange.
The heated fluid 8 is sent to various processes depending on the purpose, while the particles 7 are sent to the mixer 4, where they are mixed with a new substance 6 to be heated. is,
Thereafter, it is sent to the heat exchanger tube 1 again in the same manner.
本発明においては前述の如く伝熱管１内に攪拌螺旋翼と
してねじり板５がたとえば挿入され、かつ被加熱流体８
の内に粒子７が混入されているので、伝熱管１内におい
ては第２図、矢印Ａで示すような旋回流が形成され、−
この旋回流により発生する遠心力によって粒子は伝熱管
１の内壁に押しつけられながら流動し、温度境界層をは
がしたり浅くすることにより伝熱効率が著るしく高めら
れる。また伝熱管１の内壁の汚れも粒子に除去されて常
に新鮮な壁面が保持され、伝熱効率の低下が防止されて
設計値どおりの伝熱効率を常に保持することができる。In the present invention, as described above, for example, the torsion plate 5 is inserted into the heat transfer tube 1 as a stirring spiral blade, and the heated fluid 8
Since the particles 7 are mixed in the heat exchanger tube 1, a swirling flow as shown by arrow A in FIG.
The centrifugal force generated by this swirling flow causes the particles to flow while being pressed against the inner wall of the heat transfer tube 1, and by peeling off or making the temperature boundary layer shallow, the heat transfer efficiency is significantly increased. In addition, the dirt on the inner wall of the heat transfer tube 1 is removed into particles, so that the wall surface is always kept fresh, and a decrease in heat transfer efficiency is prevented, so that the heat transfer efficiency as designed can always be maintained.
以上述べた如く本発明は特に伝熱管内に攪拌螺旋翼とし
てのねじり板を挿入し、被加熱−または被冷却流体内に
粒子を混入し、かつ熱交換後にこの粒子を被加熱または
被冷却流体と分離して循環使用するようにしたことに特
徴がある。As described above, the present invention particularly involves inserting a torsion plate as a stirring spiral blade into a heat transfer tube, mixing particles into a fluid to be heated or cooled, and after heat exchange, transferring the particles to the fluid to be heated or cooled. It is unique in that it can be separated and used for circulation.
この結果本発明によれば、ねじり板によって被加熱また
は被冷却流体は旋回流となり、これにより発′生ずる遠
心力によって粒子は伝熱管の内壁に押しつけられながら
転動するようになるので、粒子による被加熱または被冷
却物質の攪拌効果や温度境界層のはがれや浅化によシ伝
熱効率の向上が促進される。As a result, according to the present invention, the fluid to be heated or cooled becomes a swirling flow due to the torsion plate, and the centrifugal force generated by this causes the particles to roll while being pressed against the inner wall of the heat transfer tube. The improvement of heat transfer efficiency is promoted by the stirring effect of the substance to be heated or cooled and by the separation or shallowing of the temperature boundary layer.
本発明では、このように伝熱効率が向上するので熱交換
器の伝熱面積を小さくすることができ、従って熱交換器
の小型化、高性能化が達成される。更に伝熱効率が向上
する結果、加熱媒体と被加熱流体との温度差を小さくす
ることができるので、被加熱流体の異状加熱による分解
、劣化を防止することができる。更にまた本発明では被
加熱または被冷却流体に混入された粒子が常に伝熱管内
壁に接触するので、伝熱管の内壁面が常に新鮮な状態に
保持され、伝熱効率がより一層向上すると共に、伝熱管
内壁の汚れによる伝熱効率の経時劣化が防止されて設計
時の伝熱効率を常に保持することができる。In the present invention, since the heat transfer efficiency is improved in this way, the heat transfer area of the heat exchanger can be reduced, and therefore, the size and performance of the heat exchanger can be reduced. Furthermore, as a result of improved heat transfer efficiency, the temperature difference between the heating medium and the heated fluid can be reduced, so that decomposition and deterioration of the heated fluid due to abnormal heating can be prevented. Furthermore, in the present invention, the particles mixed in the fluid to be heated or cooled are always in contact with the inner wall of the heat exchanger tube, so the inner wall surface of the heat exchanger tube is always kept in a fresh state, and the heat transfer efficiency is further improved. Deterioration of heat transfer efficiency over time due to dirt on the inner wall of the heat tube is prevented, and the designed heat transfer efficiency can always be maintained.
第１図は本発明の実施例を示す概要図、第２図は本発明
で用いる攪拌螺旋翼の第１実施例を示す縦断面図、第３
図はその横断面図、第４図は攪拌螺旋翼の第２実施例を
示す縦断面図、第５図はその横断面図、第６図は攪拌螺
旋翼の第３実施例を示す縦断面図、第７図はその横断面
図、第８図は攪拌螺旋翼の第４実施例を示す縦断面図、
第９図はその横断面図である。
１・・・伝熱管、２・・・ジャケット、３・・・固液分
離器、４・・・混合器、５．８，９，１０．１１・・・
攪拌螺旋翼。
代理人 弁理士 小 川 信 −
弁理士 野 口 賢 照
弁理士 斎 下 和 彦FIG. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing a first embodiment of a stirring spiral blade used in the present invention, and FIG.
The figure is a cross-sectional view thereof, FIG. 4 is a vertical cross-sectional view showing a second embodiment of the stirring spiral blade, FIG. 5 is a cross-sectional view thereof, and FIG. 6 is a vertical cross-sectional view showing a third embodiment of the stirring spiral blade. 7 is a cross-sectional view thereof, and FIG. 8 is a longitudinal sectional view showing a fourth embodiment of the stirring spiral blade.
FIG. 9 is a cross-sectional view thereof. DESCRIPTION OF SYMBOLS 1... Heat exchanger tube, 2... Jacket, 3... Solid-liquid separator, 4... Mixer, 5.8, 9, 10.11...
Stirring spiral blade. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita
Claims (1)
熱管内を流れる間に前記ジャケットを流れる熱媒体との
熱交換によって加熱または冷却された粒子を混入した被
加熱または被冷却流体から該粒子を分離する固液分離器
と、該固液分離器の下流側に設けられ前記分離した粒子
をあらたな被加熱または被冷却流体と混合して前記伝熱
管に送る混合器とからなり、前記伝熱管の中に攪拌螺旋
翼を設けたことを特徴とする粒子循環式熱交換装置。Particles from a heated or cooled fluid mixed with particles that are heated or cooled by heat exchange between a heat transfer tube having a jacket and a heat medium that is connected to the heat transfer tube and flows through the jacket while flowing inside the heat transfer tube. and a mixer provided downstream of the solid-liquid separator to mix the separated particles with a new fluid to be heated or cooled and send the mixture to the heat transfer tube. A particle circulation heat exchange device characterized by having a stirring spiral blade installed in a heat tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20799281A JPS58110988A (en) | 1981-12-24 | 1981-12-24 | Particle circulating type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20799281A JPS58110988A (en) | 1981-12-24 | 1981-12-24 | Particle circulating type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58110988A true JPS58110988A (en) | 1983-07-01 |
Family
ID=16548878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20799281A Pending JPS58110988A (en) | 1981-12-24 | 1981-12-24 | Particle circulating type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58110988A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116544A (en) * | 2010-09-17 | 2011-07-06 | 宁波惠康实业有限公司 | Air-conditioning heat exchanger |
| US20120247102A1 (en) * | 2011-03-23 | 2012-10-04 | Kabushiki Kaisha Toshiba | Solar heat collecting apparatus and solar power generation system |
| JP2014112024A (en) * | 2012-10-30 | 2014-06-19 | China Petroleum & Chemical Corp | Heat transfer pipe and cracking furnace using the same |
| JP2015524862A (en) * | 2013-05-07 | 2015-08-27 | 中国科学院近代物理研究所 | Heat exchange medium, heat exchange system and nuclear reactor system |
| CN111578770A (en) * | 2020-04-29 | 2020-08-25 | 南京理工大学 | Cooling device used under high-strength heat flux density |
-
1981
- 1981-12-24 JP JP20799281A patent/JPS58110988A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116544A (en) * | 2010-09-17 | 2011-07-06 | 宁波惠康实业有限公司 | Air-conditioning heat exchanger |
| US20120247102A1 (en) * | 2011-03-23 | 2012-10-04 | Kabushiki Kaisha Toshiba | Solar heat collecting apparatus and solar power generation system |
| US8820076B2 (en) * | 2011-03-23 | 2014-09-02 | Kabushiki Kaisha Toshiba | Solar heat collecting apparatus and solar power generation system |
| JP2014112024A (en) * | 2012-10-30 | 2014-06-19 | China Petroleum & Chemical Corp | Heat transfer pipe and cracking furnace using the same |
| JP2015524862A (en) * | 2013-05-07 | 2015-08-27 | 中国科学院近代物理研究所 | Heat exchange medium, heat exchange system and nuclear reactor system |
| US10699818B2 (en) | 2013-05-07 | 2020-06-30 | Institute Of Modern Physics, Chinese Academy Of Sciences | Heat exchange medium, heat exchange system, and nuclear reactor system |
| CN111578770A (en) * | 2020-04-29 | 2020-08-25 | 南京理工大学 | Cooling device used under high-strength heat flux density |
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