JPS62228895A - Heat transfer promoting device using electric field of condensation heat exchanger - Google Patents
Heat transfer promoting device using electric field of condensation heat exchangerInfo
- Publication number
- JPS62228895A JPS62228895A JP7315086A JP7315086A JPS62228895A JP S62228895 A JPS62228895 A JP S62228895A JP 7315086 A JP7315086 A JP 7315086A JP 7315086 A JP7315086 A JP 7315086A JP S62228895 A JPS62228895 A JP S62228895A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- heat transfer
- electrode
- heat
- electric field
- 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
- 230000005684 electric field Effects 0.000 title claims abstract description 12
- 230000001737 promoting effect Effects 0.000 title claims description 4
- 230000005494 condensation Effects 0.000 title abstract description 8
- 238000009833 condensation Methods 0.000 title abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 19
- 239000012528 membrane Substances 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- F28F13/16—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying an electrostatic field to the body of the heat-exchange medium
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (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）
本発明は、伝熱管を有する凝縮熱交換器において、電場
を利用してその伝熱を促進する装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for promoting heat transfer using an electric field in a condensing heat exchanger having heat transfer tubes.
（従来技術）
凝縮熱交換器は、熱源の熱により熱媒体を蒸発させ、こ
の蒸気の潜熱を受熱部に放出させて熱交換を行うもので
ある。本発明が適用される凝縮熱交換器は、受熱部とし
て冷却水を通す伝熱管を備えた型のものである。(Prior Art) A condensing heat exchanger performs heat exchange by evaporating a heat medium using heat from a heat source and releasing the latent heat of the vapor to a heat receiving section. The condensing heat exchanger to which the present invention is applied is of a type equipped with a heat transfer tube through which cooling water passes as a heat receiving section.
凝縮熱交換器では、伝熱管の外周面に凝縮液が付いて液
膜が形成され、この液膜が新たな蒸気の凝縮を阻害し、
熱交換効率を悪化させる原因となっていた。In a condensing heat exchanger, condensed liquid adheres to the outer peripheral surface of the heat transfer tube to form a liquid film, and this liquid film inhibits the condensation of new vapor.
This caused deterioration of heat exchange efficiency.
そこで、従来、第３図に示されているような電場を利用
して伝熱管の外表面の凝縮液を除去し、伝熱を促進する
装置が提案されている。Therefore, a device has been proposed that utilizes an electric field as shown in FIG. 3 to remove condensate from the outer surface of a heat transfer tube to promote heat transfer.
この従来装置は、伝熱管１を一方の電極とし、且つ螺旋
状の線電極２及び筒状の面電極３を他方の電極とし、伝
熱管１と線電極２、面電極３との間に高電圧がかけられ
、電場が形成される。In this conventional device, a heat exchanger tube 1 is used as one electrode, a spiral wire electrode 2 and a cylindrical surface electrode 3 are used as the other electrode, and a height is set between the heat exchanger tube 1, the wire electrode 2, and the surface electrode 3. A voltage is applied and an electric field is created.
この電場により、第４図に示されているように、凝縮液
４は伝熱管１から線電極２に引き寄せられる。線電極２
を伝わって排液体５に導かれ、排液体５に沿って排出さ
れる。他方、面電極３に対向する伝熱管１では、電場に
より凝縮液４が滴状化される。これにより露出した伝・
熱管１の部分６において、蒸気の凝縮が促進される。Due to this electric field, the condensate 4 is drawn from the heat exchanger tube 1 to the wire electrode 2, as shown in FIG. wire electrode 2
It is guided to the drained liquid 5 along the drained liquid 5, and is discharged along the drained liquid 5. On the other hand, in the heat exchanger tube 1 facing the surface electrode 3, the condensate 4 is turned into droplets by the electric field. The story exposed by this
In the section 6 of the heat tube 1 the condensation of the steam is promoted.
この従来装置では、線電極２により伝熱ｇ１に付いた凝
縮液４の大部分を引き寄せ除去すると共に、残りの凝縮
液４を面電極３に対向する箇所において滴状化している
。In this conventional device, most of the condensate 4 adhering to the heat transfer g1 is drawn and removed by the wire electrode 2, and the remaining condensate 4 is turned into droplets at a location facing the surface electrode 3.
（発明が解決しようとする問題点）
本発明は、上記従来の電場による伝熱促進装置を発展さ
せたものである。本発明の目的は、電場を利用して凝縮
熱交換器の伝熱促進を行うことにある。(Problems to be Solved by the Invention) The present invention is an improvement of the above-mentioned conventional heat transfer promoting device using an electric field. An object of the present invention is to promote heat transfer in a condensing heat exchanger using an electric field.
（問題点を解決するだめの手段）
上記目的を達成するために、本発明は次のように構成さ
れている。(Means for Solving the Problems) In order to achieve the above object, the present invention is configured as follows.
即ち、本発明は、熱媒体の蒸気の潜熱が放出される凝縮
熱交換器における伝熱管と、伝熱管の周囲を螺旋状に包
囲するように形成され、伝熱管の外表面に内面が対向し
た面電極とを備え、該面電極が一方の電極に、且つ前記
伝熱管が他方の電極にされ、前記面電極と前記伝熱管と
の開に高電圧がかけられるように構成されている。That is, the present invention provides a heat exchanger tube in a condensing heat exchanger in which latent heat of vapor of a heat medium is released, and a heat exchanger tube formed so as to surround the heat exchanger tube in a spiral manner, the inner surface facing the outer surface of the heat exchanger tube. A surface electrode is provided, the surface electrode is used as one electrode, and the heat exchanger tube is used as the other electrode, and a high voltage is applied between the surface electrode and the heat exchanger tube.
（作用） 本発明は、次のように作用する。(effect) The invention works as follows.
面電極に対向した伝熱管の外表面において凝縮液が滴状
化する。この液滴は下方に流れながら集まって大きくな
り、面電極に引き寄せられて螺旋状の面電極の下端に沿
って流れ落ち排出される。The condensed liquid forms droplets on the outer surface of the heat transfer tube facing the surface electrode. The droplets gather and grow as they flow downward, are attracted to the surface electrode, and are discharged along the lower end of the spiral surface electrode.
（実施例）
以下に、本発明の一実施例を第１図及び第２図に基づい
て説明する。(Example) An example of the present invention will be described below based on FIGS. 1 and 2.
ｖ、１図を参照して、凝縮熱交換器の内部には、伝熱管
１が縦置きに複数本設けられている。この伝熱管１には
冷却水が流れており、伝熱管１に対して熱媒体の蒸気の
潜熱が放出されて凝縮し、熱交換が行なわれる。Referring to FIG. 1, a plurality of heat transfer tubes 1 are installed vertically inside the condensing heat exchanger. Cooling water flows through the heat exchanger tube 1, and the latent heat of the vapor of the heat medium is released to the heat exchanger tube 1 and condensed, thereby performing heat exchange.
ところが、伝熱ｇ１の外表面に凝縮液４の液膜が形成さ
れ、従来、この液膜により新たな凝縮が阻害され、熱交
換効率上問題となっていた。However, a liquid film of the condensed liquid 4 is formed on the outer surface of the heat transfer g1, and conventionally, this liquid film inhibits new condensation, causing a problem in terms of heat exchange efficiency.
ａ組成４を伝熱管１から連続的に除去するために、本発
明は以下のように面電極１２を設置している。In order to continuously remove the a composition 4 from the heat exchanger tube 1, the present invention installs a surface electrode 12 as follows.
伝熱管１の周囲には、伝熱管１の輪方向に棒状の支持体
１１が複数本設けられている。この支持体１１に、螺旋
状の面電極１２が複数個固定されている。螺旋の角度θ
は、３０”ないし４５°が望ましい。面電極１２の内面
１３は、伝熱ｆｒ！１の外表面に対向している。後述の
ように伝熱￥！１の外表面に付いた凝縮液を滴状化する
ためには、面電極１２と伝熱管１との間隔Ｈを０．５な
いし５１１１１１１程度にすればよい。面電極１２の＠
Ｓは、数■ないし１００＋ｎｍ程度とすることが望まし
い。A plurality of rod-shaped supports 11 are provided around the heat exchanger tube 1 in the ring direction of the heat exchanger tube 1 . A plurality of spiral surface electrodes 12 are fixed to this support 11 . Helix angle θ
is preferably 30" to 45 degrees. The inner surface 13 of the surface electrode 12 faces the outer surface of the heat transfer fr!1. As will be described later, the condensate attached to the outer surface of the heat transfer fr!1 is removed. In order to form droplets, the distance H between the surface electrode 12 and the heat exchanger tube 1 may be set to about 0.5 to 5111111.
It is desirable that S be approximately several square meters to 100+ nm.
面電極１２を一方の電極とし、且つ伝熱管１自本を他方
の電極とし、面電極１２と伝熱管１との間に高電圧をか
けるようにする。The surface electrode 12 is used as one electrode, the heat exchanger tube 1 itself is used as the other electrode, and a high voltage is applied between the surface electrode 12 and the heat exchanger tube 1.
支持体１１の各所に間隔保持部材１４が通され、この間
隔保持部材１４が伝熱管１に接触することにより、面電
極１２と伝熱管１との開隔Ｈが保たれている。Spacing members 14 are passed through various parts of the support 11, and the spacing members 14 come into contact with the heat exchanger tubes 1, thereby maintaining the gap H between the surface electrodes 12 and the heat exchanger tubes 1.
面電極１２の外側には、棒状の排液体５が伝熱管１の軸
線方向に設けられている。この排液体５に、面電極１２
の下端１５が接続されてνする。A rod-shaped drain liquid 5 is provided outside the surface electrode 12 in the axial direction of the heat exchanger tube 1 . A surface electrode 12 is connected to this drained liquid 5.
The lower end 15 of is connected to ν.
以上のように構成された本実施例は、次のように作用す
る。The present embodiment configured as described above operates as follows.
面電極１２と伝熱’ｊ７１との開に高電圧ががけられ、
電場が形成される。そうすると、伝熱管１の外表面に付
いた液膜状の凝縮液４が第２図に示されているように滴
状化する。そして、液滴は、下方に流れるに従って集ま
って大きくなり、面電極１２に引外寄せられ、面電極１
２の螺旋に沿って遠心力により流れ、排液体５を伝わっ
て下方に排出される。A high voltage is applied to the opening between the surface electrode 12 and the heat transfer 'j71,
An electric field is formed. Then, the condensed liquid 4 in the form of a liquid film adhering to the outer surface of the heat exchanger tube 1 becomes droplets as shown in FIG. Then, as the droplets flow downward, they gather and become larger, and are attracted to the surface electrode 12, and are drawn to the surface electrode 12.
The liquid flows along the spiral 2 due to centrifugal force, passes through the drainage liquid 5, and is discharged downward.
このように凝縮液４が伝熱管１がら除去されることによ
り、新たな凝縮が促進され、熱交換器の熱交換効率が向
上する。By removing the condensed liquid 4 from the heat exchanger tube 1 in this way, new condensation is promoted and the heat exchange efficiency of the heat exchanger is improved.
（発明の効果）
本発明によれば、凝縮熱交換器の伝熱管の外表面に付い
た凝縮液を除去でき、新たな凝縮が促進されるので、凝
縮熱効率器の熱交換効率を向上させることができる。(Effects of the Invention) According to the present invention, the condensate attached to the outer surface of the heat transfer tube of the condensing heat exchanger can be removed and new condensation is promoted, so that the heat exchange efficiency of the condensing heat efficiency device can be improved. I can do it.
又、電極が面状のものであるから、変形しにくく、故障
が少ない。Furthermore, since the electrode is planar, it is less likely to deform and has fewer failures.
Ｉｉ図は、本発明の一実施例に係る伝熱促進装置の正面
図である。
第２図は、第１図の装置の作用を示す要部断面図である
。
第３図は、従来の電場による伝熱促進装置の正面図であ
る。
第４図及び第５図は、第３図の装置の作用を示す要部断
面図である。
１：伝熱管 ４：凝縮液 １２：面電極指定代理人
工業技術院機械技術研究所為清水 嘉重部
第１図
第３図
第４図
第５図Figure Ii is a front view of a heat transfer accelerator according to an embodiment of the present invention. FIG. 2 is a sectional view of essential parts showing the operation of the device shown in FIG. 1. FIG. 3 is a front view of a conventional electric field-based heat transfer accelerator. 4 and 5 are sectional views of essential parts showing the operation of the apparatus shown in FIG. 3. 1: Heat transfer tube 4: Condensate 12: Plane electrode designated representative
Yoshibe Tameshimizu, Mechanical Technology Research Institute, Agency of Industrial Science and TechnologyFigure 1Figure 3Figure 4Figure 5
Claims (1)
伝熱管と、該伝熱管の周囲を螺旋状に包囲するように形
成され、前記伝熱管の外表面に内面が対向した板状の面
電極とを備え、該面電極が一方の電極に、且つ前記伝熱
管が他方の電極にされ、前記面電極と前記伝熱管との間
に高電圧がかけられることを特徴とする凝縮熱交換器の
電場による伝熱促進装置。A heat exchanger tube in a condensing heat exchanger from which latent heat of vapor of a heat medium is released, and a plate-shaped surface formed to spirally surround the heat exchanger tube and whose inner surface faces the outer surface of the heat exchanger tube. A condensing heat exchanger comprising an electrode, the surface electrode serving as one electrode and the heat exchanger tube serving as the other electrode, and a high voltage being applied between the surface electrode and the heat exchanger tube. A device for promoting heat transfer using an electric field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7315086A JPS62228895A (en) | 1986-03-31 | 1986-03-31 | Heat transfer promoting device using electric field of condensation heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7315086A JPS62228895A (en) | 1986-03-31 | 1986-03-31 | Heat transfer promoting device using electric field of condensation heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62228895A true JPS62228895A (en) | 1987-10-07 |
| JPH0441278B2 JPH0441278B2 (en) | 1992-07-07 |
Family
ID=13509866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7315086A Granted JPS62228895A (en) | 1986-03-31 | 1986-03-31 | Heat transfer promoting device using electric field of condensation heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62228895A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5072780A (en) * | 1988-11-18 | 1991-12-17 | Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry | Method and apparatus for augmentation of convection heat transfer in liquid |
| US20170341085A1 (en) * | 2016-05-30 | 2017-11-30 | Panasonic Corporation | Solvent separation method and solvent separation apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61295495A (en) * | 1985-06-24 | 1986-12-26 | Toshiba Corp | Condensation heat transfer device |
-
1986
- 1986-03-31 JP JP7315086A patent/JPS62228895A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61295495A (en) * | 1985-06-24 | 1986-12-26 | Toshiba Corp | Condensation heat transfer device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5072780A (en) * | 1988-11-18 | 1991-12-17 | Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry | Method and apparatus for augmentation of convection heat transfer in liquid |
| US20170341085A1 (en) * | 2016-05-30 | 2017-11-30 | Panasonic Corporation | Solvent separation method and solvent separation apparatus |
| US10478828B2 (en) * | 2016-05-30 | 2019-11-19 | Panasonic Corporation | Solvent separation method and solvent separation apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0441278B2 (en) | 1992-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |