JPS6373096A - Device for promoting heat transfer by electric field - Google Patents
Device for promoting heat transfer by electric fieldInfo
- Publication number
- JPS6373096A JPS6373096A JP21846686A JP21846686A JPS6373096A JP S6373096 A JPS6373096 A JP S6373096A JP 21846686 A JP21846686 A JP 21846686A JP 21846686 A JP21846686 A JP 21846686A JP S6373096 A JPS6373096 A JP S6373096A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- electrode
- heat exchanger
- transfer tube
- heat
- 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 description 17
- 230000001737 promoting effect Effects 0.000 title claims description 7
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 239000012212 insulator Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 4
- 239000004809 Teflon Substances 0.000 abstract description 3
- 229920006362 Teflon® Polymers 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 abstract description 2
- 239000002966 varnish Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 description 7
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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、熱媒体の蒸気の潜熱を伝熱管に放出させて熱
交換を行う凝縮熱交換器の改良に関し、更に詳しくは該
熱交換器に設けられ、電場により凝縮熱交換器の伝熱を
促進する装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an improvement in a condensing heat exchanger that performs heat exchange by discharging the latent heat of vapor of a heat medium to a heat transfer tube, and more specifically relates to the This invention relates to a device that is installed in a condensing heat exchanger and promotes heat transfer in a condensing heat exchanger using an electric field.
（従来技術）
凝縮熱交換器においては、伝熱面を冷却液で冷却し、該
伝熱面に熱媒体蒸気を凝縮付着させるものとなっている
。ところが、伝熱面に付着した凝縮液の液膜が厚いと、
液膜の外周表面の温度が低下しないため、続く凝縮が阻
害されるものとなる。そこで、極力液膜を薄くするべく
、できるだけ速く凝縮液を伝熱面から取り去ってやる必
要がある。(Prior Art) In a condensing heat exchanger, a heat transfer surface is cooled with a cooling liquid, and heat medium vapor is condensed and adhered to the heat transfer surface. However, if the liquid film of condensate attached to the heat transfer surface is thick,
Since the temperature of the outer peripheral surface of the liquid film does not decrease, subsequent condensation is inhibited. Therefore, in order to make the liquid film as thin as possible, it is necessary to remove the condensed liquid from the heat transfer surface as quickly as possible.
従来の公知の凝縮熱交換器では、凝縮液の重力による落
下だけを利用するものとなっていたが、それでは液膜の
薄膜化が不十分であったため、強制的に凝縮液を取り去
ることが試みられている。Conventional, well-known condensing heat exchangers utilize only the fall of condensate due to gravity, but this was insufficient to create a thin liquid film, so an attempt was made to forcibly remove the condensate. It is being
その一つが、高圧の電場を利用した液体の引き出し装置
である。One of these is a liquid extraction device that uses a high-voltage electric field.
この液体引き出し装置を＠５図に示す。This liquid withdrawal device is shown in Figure @5.
凝縮熱交換器のケーシング（図示省略）内に、縦置きに
伝熱管１が設けられ、伝熱管１には冷却水が流されてい
る。この伝熱管１の表面２に７０ンなどの熱媒体の蒸気
の潜熱が放出され、熱媒体の蒸気が凝縮し、伝熱管１内
の冷却水が受熱して温度上昇する。A heat exchanger tube 1 is provided vertically in a casing (not shown) of a condensing heat exchanger, and cooling water is flowed through the heat exchanger tube 1. The latent heat of the vapor of the heat medium, such as 70 tons, is released onto the surface 2 of the heat transfer tube 1, the vapor of the heat medium condenses, and the cooling water inside the heat transfer tube 1 receives heat and its temperature rises.
伝熱管１の表面２には、重力によって下方に流れる熱媒
体の凝縮液の膜が形成され、この液膜が新たな蒸気の凝
縮を阻害し、伝熱性能の低下させる原因となっていた。On the surface 2 of the heat transfer tube 1, a film of condensed liquid of the heat medium flowing downward due to gravity is formed, and this liquid film inhibits the condensation of new vapor, causing a reduction in heat transfer performance.
この伝熱促進装置では、一方では液膜を電場により線電
極に引き寄せて排出し、他方では液膜を部分的に液滴化
して伝熱管１の表面２に露出部分を形成し、新たな凝縮
を進める装置である。In this heat transfer promoting device, on the one hand, the liquid film is drawn to the wire electrode by an electric field and discharged, and on the other hand, the liquid film is partially turned into droplets to form an exposed part on the surface 2 of the heat transfer tube 1, and new condensation occurs. It is a device that advances
以下に、この点について詳細に説明する。This point will be explained in detail below.
伝熱管１の周囲に、螺旋状の線電極３と金属板を曲げ加
工して成る面電極４とがわずかな間隔をおいて設けられ
る。そして、化８管１を一方の電極とし、且つ線電極３
と面電極４を他方の電極として高電圧をかける。この電
場により凝縮液分子に力が作用し、一方では、伝熱管１
の表面２の凝縮液の多くは線電極３に引き出される。線
電極３によって凝縮液が引き出されると、その部分より
も下側の凝縮液の液膜は比較的薄くなっている。ところ
が、面電極４と対向する側では液膜が部分的に面電極４
側に引き寄せられ、部分的に液滴が付着したような状態
となる。このため、液滴は表面２に部分的に液膜の薄い
部分を作るものとなり、この液膜の薄い部分で凝縮を促
進するものである。A spiral wire electrode 3 and a surface electrode 4 formed by bending a metal plate are provided around the heat exchanger tube 1 with a slight interval therebetween. Then, the chemical 8 tube 1 is used as one electrode, and the wire electrode 3 is used as one electrode.
A high voltage is applied using the surface electrode 4 as the other electrode. This electric field exerts a force on the condensate molecules, and on the other hand, the heat exchanger tube 1
Much of the condensate on the surface 2 is drawn out to the wire electrode 3. When the condensate is drawn out by the wire electrode 3, the liquid film of the condensate below that part becomes relatively thin. However, on the side facing the surface electrode 4, the liquid film partially covers the surface electrode 4.
It is pulled to the side, and it becomes like a droplet is attached to a part of it. Therefore, the droplet forms a thin part of the liquid film on the surface 2, and this thin part of the liquid film promotes condensation.
（発明が解決しようとする問題点）
ところが、この液滴が次第に成長し、伝熱管１と面電極
３の両方にまたがって付着したままとなり、面電極３の
内側４と伝熱管１の間に凝縮液が充満して、伝熱管１の
表面２の露出部分が少なくなり伝熱促進性能が低下して
しまう間をがあった。(Problem to be Solved by the Invention) However, this droplet gradually grows and remains attached to both the heat exchanger tube 1 and the surface electrode 3, and there is a gap between the inner side 4 of the surface electrode 3 and the heat exchanger tube 1. There was a time when the condensate filled up, the exposed portion of the surface 2 of the heat transfer tube 1 decreased, and the heat transfer promotion performance deteriorated.
本発明は、上記面電極を利用した伝熱促進装置を改良し
たものである。The present invention is an improvement on the heat transfer promoting device using the above-mentioned surface electrode.
即ち、本発明の目的は、面電極と対向する伝熱管の表面
との間に凝縮液が充満しないようにし、液膜の薄い部分
、つまり露出部分を広く維持できるようにした電場によ
る伝熱促進装置を提供することにある。That is, an object of the present invention is to prevent condensate from filling up between the surface electrode and the surface of the heat exchanger tube facing each other, and to promote heat transfer using an electric field that maintains the thin part of the liquid film, that is, the exposed part. The goal is to provide equipment.
（間厘点を解決するための手段）
本発明は、面電極の少なくとも伝熱管の表面に対向した
内側が絶縁体によりコーティングされて絶縁膜が形成さ
れている。(Means for Solving the Problem) In the present invention, at least the inner side of the surface electrode facing the surface of the heat exchanger tube is coated with an insulator to form an insulating film.
（実施例） 以下に、本発明の一実施例を図を参照して説明する。(Example) An embodiment of the present invention will be described below with reference to the drawings.
ｆｊＳ４図を参照して、凝縮熱交換器の概略を説明する
。The outline of the condensing heat exchanger will be explained with reference to the fjS4 diagram.
６は、；疑縮熱交換器である。ケーシング７内に複数の
伝熱管１が縦置に設けられている。ケーシング７の下部
の冷却水導入口８がら冷却水が導入され、伝熱管１内を
上昇する。一方、ケーシング７の上部の蒸気導入口９が
らは、フロンなどの熱媒体の蒸気が、ケーシング７内に
導入される。6 is a pseudo-condensing heat exchanger. A plurality of heat exchanger tubes 1 are provided vertically within the casing 7. Cooling water is introduced through a cooling water inlet 8 in the lower part of the casing 7 and rises inside the heat exchanger tube 1 . On the other hand, through the steam inlet 9 in the upper part of the casing 7, steam of a heat medium such as fluorocarbon is introduced into the casing 7.
冷却水が流れる伝熱管１の表面２に、熱媒水の蒸気が潜
熱を放出し１疑縮する。伝熱管１を上昇する間に受熱し
て温度上昇した冷却水は、ケーシング７の上部の冷却水
導出口６から導出される。伝熱管１の表面２に凝、縮付
着した凝１愉ン夜は、伝熱管１の表面２に液膜を形成し
、該液膜は重力によって下方へ流れ、ケーシング７の下
部にある凝縮液排出口から排出される。On the surface 2 of the heat transfer tube 1 through which the cooling water flows, the vapor of the heat transfer water releases latent heat and condenses. The cooling water whose temperature has increased by receiving heat while moving up the heat exchanger tube 1 is led out from the cooling water outlet 6 in the upper part of the casing 7 . The condensate that has condensed and adhered to the surface 2 of the heat exchanger tube 1 forms a liquid film on the surface 2 of the heat exchanger tube 1, and the liquid film flows downward due to gravity, and the condensed liquid at the bottom of the casing 7 It is discharged from the outlet.
この伝熱管１の表面２における凝縮液の液膜は、続く所
たな凝縮を阻害するものとなる。This liquid film of condensate on the surface 2 of the heat exchanger tube 1 hinders subsequent condensation.
次に述べる伝熱促進装置は、強制的に凝１格液を伝熱管
１から除去し、更に凝縮液の液膜を滴状化して伝熱管１
の表面２に部分的にｉ膜の藩い部分、即ち露出部分を作
る装置である。The heat transfer accelerating device described below forcibly removes the condensed liquid from the heat exchanger tube 1, and further converts the liquid film of the condensate into droplets to form the heat transfer tube 1.
This is a device that partially creates a thick part of the i-film, that is, an exposed part, on the surface 2 of the film.
第１図を参照して、金属などの導体から成る伝熱管１の
周囲に、伝熱管１の表面２とわずかの間隔をおいて螺旋
状に巻かれた線電極３が、伝熱ｔｒ１１の周囲に設けら
れた複数の支持体１１に固定され、その下端１２は伝熱
ｇ１がら離れて縦方向に伸張する排液体５に接続されて
いる。Referring to FIG. 1, a wire electrode 3 is spirally wound around a heat transfer tube 1 made of a conductor such as metal with a slight distance from the surface 2 of the heat transfer tube 1. It is fixed to a plurality of supports 11 provided at , and its lower end 12 is connected to a drainage liquid 5 extending in the longitudinal direction away from the heat transfer g1.
この線電極３は、伝熱管１の表面２に凝縮付着した凝縮
液を引き出すものである。This wire electrode 3 is for drawing out the condensate that has condensed and adhered to the surface 2 of the heat exchanger tube 1.
又、螺旋状に巻回された線？！極３の間には、金属板を
曲げ加工してなる面電極４が支持体１１に固定され、下
端１３は排液体５に接続されている。この面電極４の作
用は次のとおりである。Or a spirally wound wire? ! Between the poles 3, a surface electrode 4 formed by bending a metal plate is fixed to a support 11, and a lower end 13 is connected to a draining liquid 5. The action of this surface electrode 4 is as follows.
面電極４は伝熱管１の表面２に付着した凝縮液を滴状化
するとともに、後述のように成長した液滴を面電極４に
付着させて伝熱管１から除去させる作用を有する。面電
極４の少なくとも内側１４には、ｆｊｒ、 ２図に示す
ようにテフロン、ワニスなどの絶縁体によりコーティン
グされた絶縁膜１５が形成されている。絶縁膜１５が形
成されている理由は、次のとおりである。The surface electrode 4 has the function of turning the condensed liquid adhering to the surface 2 of the heat exchanger tube 1 into droplets, and also causes the grown droplets to adhere to the surface electrode 4 and removing them from the heat exchanger tube 1 as described later. At least on the inner side 14 of the surface electrode 4, an insulating film 15 coated with an insulator such as Teflon or varnish is formed, as shown in FIG. The reason why the insulating film 15 is formed is as follows.
熱媒体がフロンの場合、その蒸気の電気抵抗は１０’？
Ω／ｃｍであり、液体の電気抵抗は１０１２Ω／ｃＩＩ
ｌである。絶縁膜１５がテフロンの場合、その電気抵抗
は１０１４Ω／ｃｎ＋である。つまり、熱媒体の蒸気の
電気抵抗をＲ１とし、絶縁膜１５の電気抵抗をＲ２とし
、熱媒体の液体（凝縮液）の電気抵抗なＲ１とした場合
において、Ｒ，＞ Ｒ７〉Ｒ３の大小関係がある。If the heating medium is Freon, the electrical resistance of its vapor is 10'?
Ω/cm, and the electrical resistance of the liquid is 1012 Ω/cII
It is l. When the insulating film 15 is made of Teflon, its electrical resistance is 1014Ω/cn+. In other words, when the electrical resistance of the heat medium vapor is R1, the electrical resistance of the insulating film 15 is R2, and the electrical resistance of the heat medium liquid (condensate) is R1, the magnitude relationship of R,>R7> R3 There is.
面電極４と伝熱管１間に高電圧をかけると、面電極４と
伝熱ｇ１の間に電場が形成され、この電場により凝縮液
１６の分子に面電極４側に引く力が作用し、凝縮液１６
は滴状化される。When a high voltage is applied between the surface electrode 4 and the heat transfer tube 1, an electric field is formed between the surface electrode 4 and the heat transfer g1, and this electric field exerts a force that pulls the molecules of the condensate 16 toward the surface electrode 4, Condensate 16
is made into droplets.
この液滴が成長して絶縁膜１５に到達すると、凝縮液１
６と面電極４の間、つまり絶縁膜１５に電場が形成され
るものとなり、凝縮液１６の分子に作用していた電場に
よる力が消滅し、；凝縮液は重力により落下する。When this droplet grows and reaches the insulating film 15, the condensed liquid 1
An electric field is formed between the surface electrode 6 and the insulating film 15, and the force due to the electric field acting on the molecules of the condensate 16 disappears; the condensate falls due to gravity.
以上のような電場の変化を応用した本発明の一実施例の
作用は、次のとおりである。The operation of one embodiment of the present invention applying the above-described change in electric field is as follows.
伝熱Ｉｒ１１を一方の電極とし、且つ面電極４を他方の
電極として高電圧をかける。この電場により凝縮液１６
の分子に力が作用し、伝熱管１の表面２の凝縮液の多く
は線電極３に引き出され、遠心力により線電極３に沿っ
て流れ排液体５に連絡され、排液体５に沿って下方に流
れる。A high voltage is applied using the heat transfer Ir 11 as one electrode and the surface electrode 4 as the other electrode. This electric field causes the condensate 16
Force acts on the molecules of the heat exchanger tube 1, and most of the condensed liquid on the surface 2 of the heat exchanger tube 1 is drawn out to the wire electrode 3, flows along the wire electrode 3 due to centrifugal force, and is connected to the drained liquid 5; flows downward.
線電極３に引き出されない凝縮液１６は、第２図に示す
ように、面電極４と対向する伝熱管１の表面２において
液滴となる。液滴となることにより、伝熱管１の表面２
に液膜の薄い露出部分１７ができ、新たな凝縮が進み伝
熱が促進される。この凝縮液１６の液滴は、第３図（イ
）（ロ）（ハ）に示すような過程を経て、伝熱管１ｈ・
ら除去される。ここで、？Ｊ、３図において鎖線は電気
力線を示す。The condensate 16 that is not drawn out to the wire electrode 3 becomes droplets on the surface 2 of the heat exchanger tube 1 facing the surface electrode 4, as shown in FIG. By becoming a droplet, the surface 2 of the heat exchanger tube 1
A thin exposed portion 17 of the liquid film is formed on the surface, and new condensation occurs and heat transfer is promoted. The droplets of the condensed liquid 16 pass through the processes shown in FIG.
removed. here,? J. In Figure 3, the chain lines indicate the lines of electric force.
凝縮液の液滴は第３図（イ）に示すように次第に成長し
、第３図（ロ）に示すように液滴ＩＧが絶縁膜１５に到
達すると凝縮液１６と面電極４の開、つまり絶縁膜１５
に電場が形成されるものとなり、凝縮液１６の分子に作
用していた電場による力が消滅し、凝縮液は重力により
落下したり、面電極４を伝わって排液体５に沿って下方
に流れる。本実施例では、面電極４の下端部１８が螺旋
状に下方に傾斜して形成されており、重力に上り面電極
４の下端部１８に集まった凝縮液が遠心力により移動し
、排液体５に連絡される。The condensed liquid droplet gradually grows as shown in FIG. 3(a), and when the droplet IG reaches the insulating film 15 as shown in FIG. 3(b), the condensed liquid 16 and the surface electrode 4 open, In other words, the insulating film 15
An electric field is formed, and the force due to the electric field acting on the molecules of the condensate 16 disappears, causing the condensate to fall due to gravity or flow downward along the drained liquid 5 through the surface electrode 4. . In this embodiment, the lower end 18 of the surface electrode 4 is formed to be spirally inclined downward, and the condensate that rises due to gravity and collects on the lower end 18 of the surface electrode 4 is moved by centrifugal force, and the liquid is drained. 5 will be contacted.
尚、上記実施例に本発明が限定されるものではない。例
えば、面電極は排液体に連絡されていないものも、下端
部に傾斜がないものも含むものである。Note that the present invention is not limited to the above embodiments. For example, the surface electrodes include those that are not connected to the draining liquid and those that do not have a slope at the lower end.
又、本発明の伝熱促進装置は、線電極と面電極とを組合
わせた構造のものに限定されるものではなく、面電はだ
けが設けられた構造も含むものである。Further, the heat transfer promoting device of the present invention is not limited to a structure in which a line electrode and a surface electrode are combined, but also includes a structure in which only a surface electrode is provided.
更に、面電極の内側に絶縁体がコーティングされている
ものに限定されず、例えば面電極の表面全体に絶縁体が
コーティングされているものも含む。Further, the present invention is not limited to those in which the inside of the surface electrode is coated with an insulator, and includes, for example, those in which the entire surface of the surface electrode is coated with an insulator.
（発明の効果）
本発明は、面電極の少なくとも内側が絶縁体によりコー
ティングされて絶縁膜が形成されている。このため、伝
熱管の表面に形成された液滴が徐々に成長し、面電極に
接触するまで拡大したとしても、液滴が面電極に接触し
た途端に、電場による作用力を失って重力による自然落
下を生ずる。(Effects of the Invention) In the present invention, at least the inside of the surface electrode is coated with an insulator to form an insulating film. For this reason, even if a droplet formed on the surface of a heat transfer tube gradually grows and expands until it touches the surface electrode, as soon as the droplet contacts the surface electrode, it loses the force exerted by the electric field and becomes gravitational. causing natural fall.
従って、面電極と対向する伝熱管の表面において凝縮液
に覆われない露出部分を常に広く維持でき、伝熱促進効
果を向上させることができるものである。Therefore, on the surface of the heat exchanger tube facing the surface electrode, the exposed portion not covered with condensate can always be kept wide, and the heat transfer promoting effect can be improved.
第１図は、本発明の一実施例の斜視図である。
第２図は、第１図の要部の断面図である。
第３図（イ）（ロ）（ハ）は、第１図の実施例の作用過
程を示す一部断面図である。
１４図は、凝縮熱交換器の断面図である。
第５図は、出原中の技術の斜視図である。
１：伝熱管 ２：表面 ４：面電極
６：凝縮熱交換器 １２：徘液体 １４：内側１５：絶
縁膜
第１図
第３図
（イ）
第４図
第５図FIG. 1 is a perspective view of one embodiment of the present invention. FIG. 2 is a sectional view of the main part of FIG. 1. 3(a), 3(b), and 3(c) are partial sectional views showing the working process of the embodiment of FIG. 1. FIG. 14 is a cross-sectional view of the condensing heat exchanger. FIG. 5 is a perspective view of the original technology. 1: Heat transfer tube 2: Surface 4: Surface electrode 6: Condensing heat exchanger 12: Wandering liquid 14: Inside 15: Insulating film Figure 1 Figure 3 (A) Figure 4 Figure 5
Claims (1)
放出される伝熱管と、該伝熱管の周囲に設けられた線電
極と、該線電極の巻回された位置を除く伝熱管の周囲に
設けられた面電極とを備え、該線電極及び面電極を一方
の電極に、且つ前記伝熱管を他方の電極にし、両者の間
に高電圧をかけて伝熱管の表面に付着した前記熱媒体の
凝縮液を線電極に引き出すとともに、前記面電極に対向
した伝熱管表面の凝縮液を滴状化するようにした電場に
よる伝熱促進装置において、 前記面電極の少なくとも伝熱管に対向した内側が絶縁体
によりコーティングされ、絶縁膜が形成されており、 熱媒体の蒸気の電気抵抗をＲ＿１とし、絶縁膜１５の電
気抵抗をＲ＿２とし、熱媒体の液体（凝縮液）の電気抵
抗をＲ＿３とした場合、 Ｒ＿１＞Ｒ＿２＞Ｒ＿３ となっていることを特徴とする電場による伝熱促進装置
。[Scope of Claims] A heat exchanger tube installed vertically in a condensing heat exchanger and from which latent heat of vapor of a heating medium is released, a wire electrode provided around the heat exchanger tube, and a winding of the wire electrode. and a surface electrode provided around the heat exchanger tube except for the rotated position, the wire electrode and the surface electrode are used as one electrode, the heat exchanger tube is used as the other electrode, and a high voltage is applied between them. In the heat transfer promoting device using an electric field, the condensed liquid of the heat medium adhering to the surface of the heat exchanger tube is drawn out to the wire electrode, and the condensed liquid on the surface of the heat exchanger tube facing the plane electrode is turned into droplets. At least the inside of the surface electrode facing the heat transfer tube is coated with an insulator to form an insulating film, the electrical resistance of the heat medium vapor is R_1, the electrical resistance of the insulating film 15 is R_2, and the heat medium liquid A heat transfer promoting device using an electric field, characterized in that when the electrical resistance of (condensate) is R_3, R_1>R_2>R_3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21846686A JPS6373096A (en) | 1986-09-17 | 1986-09-17 | Device for promoting heat transfer by electric field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21846686A JPS6373096A (en) | 1986-09-17 | 1986-09-17 | Device for promoting heat transfer by electric field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6373096A true JPS6373096A (en) | 1988-04-02 |
| JPH031598B2 JPH031598B2 (en) | 1991-01-10 |
Family
ID=16720353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21846686A Granted JPS6373096A (en) | 1986-09-17 | 1986-09-17 | Device for promoting heat transfer by electric field |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6373096A (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 |
-
1986
- 1986-09-17 JP JP21846686A patent/JPS6373096A/en active Granted
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 |
|---|---|
| JPH031598B2 (en) | 1991-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |