JPS594897A - Heat exchanger - Google Patents

Heat exchanger

Info

Publication number
JPS594897A
JPS594897A JP11350782A JP11350782A JPS594897A JP S594897 A JPS594897 A JP S594897A JP 11350782 A JP11350782 A JP 11350782A JP 11350782 A JP11350782 A JP 11350782A JP S594897 A JPS594897 A JP S594897A
Authority
JP
Japan
Prior art keywords
pipe
heat exchanger
contact angle
heat
water
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
Application number
JP11350782A
Other languages
Japanese (ja)
Inventor
Shigenori Uda
宇田 成徳
Kojiro Takeyama
幸次郎 武山
Etsuzo Hamakawa
濱川 悦三
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11350782A priority Critical patent/JPS594897A/en
Publication of JPS594897A publication Critical patent/JPS594897A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00Coatings; Surface treatments
    • F28F2245/02Coatings; Surface treatments hydrophilic

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

PURPOSE:To improve the heat transfer efficiency by forming a heat transfer pipe of a heat exchanger with a plastics pipe, on inside surface thereof a hydrophilic layer is formed. CONSTITUTION:A polyester film tape 1 having a thickness less than 0.1mm. is slantingly and endlessly wound as overlapping one portion of the tape, and the overlapped portion is welded with a thermosetting polyester family adhensive, then a cylindrical pipe 2 is formed. The pipe 2 formed by said process is cut at a required dimension, inserted into a side plate 4 made of plastics which is provided with through holes 3 in equal interval, then adhered with said side plate 4, thus, a heat exchanger is structured. A contact angle between the pipe 2 and the water is 65-70 deg. in forward contact angle, 48-50 deg. in backward contact angle. A hydrophilic layer 5 is formed by the corona discharge treatment, or by coating of such hydrophilic agent as a water glass and the like. Consequently, the water drops 6 adhered on the inside wall of the pipe 2 becomes especially small, accordingly, the moistue condensation effect is improved, the heat exchange efficiency is also improved.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、例えば衣類乾燥機、空気調和機のよう、な機
器において、除湿や熱交換のために用いる熱交換器に係
る。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat exchanger used for dehumidification and heat exchange in equipment such as clothes dryers and air conditioners.

従来例の構成とその問題点 従来の衣類乾燥機のような機器においては、高温多湿空
気の除湿、熱交換を行うために、銅パイプの周囲にアル
ミニウム薄板からなる放熱フィンを設けた熱交換器を使
用していた。
Conventional configuration and its problems In conventional equipment such as clothes dryers, heat exchangers are equipped with radiating fins made of thin aluminum plates around copper pipes in order to dehumidify high-temperature, humid air and exchange heat. was using.

しかしこのような銅パイプを用いた熱交換器では、内径
側の伝熱面積が少くて熱交換効率が悪い欠点があった。
However, such a heat exchanger using a copper pipe has a drawback that the heat transfer area on the inner diameter side is small and the heat exchange efficiency is poor.

また銅パイプの本数を多くして内径側、すなわち高温側
の伝熱面積を多く取ろうとすると銅パイプの使用量が多
くなってコスト高となシ、また形状的にも大型となって
省資源、省エネルギー化が図れない問題点があった。
In addition, if you increase the number of copper pipes to increase the heat transfer area on the inner diameter side, that is, on the high temperature side, the amount of copper pipes used will increase, resulting in higher costs, and the shape will also become larger, saving resources. However, there was a problem that energy saving could not be achieved.

またパイプ内の結露状態をみると、第1図に示すように
、パイグアの内壁に結露した水滴8の陰になった部分9
は空気だまりとなって断熱効果を奏し、かつ水滴8は流
れと直角方向の厚みがあって断熱効果を奏し、その結果
熱交換効墓および結露性能が低下する欠点があった。
Also, looking at the state of dew condensation inside the pipe, as shown in Fig.
The water droplets 8 act as air pockets and have a heat insulating effect, and the water droplets 8 have a thickness in the direction perpendicular to the flow and have a heat insulating effect.As a result, the heat exchange effect and dew condensation performance are reduced.

発明の目的 本発明は、高温側の熱伝導面積を多くして熱伝導効率を
向上させてもコスト高になることはなく゛また軽量化を
はかることができる熱交換器を提供するものであシ、高
温側と低温側との圧力差が比較的少い、例えば水柱圧0
〜100問程度の熱交換器を用いる衣類乾燥機、空気調
和機等に適するものである。
OBJECTS OF THE INVENTION The present invention provides a heat exchanger that can improve the heat conduction efficiency by increasing the heat conduction area on the high temperature side without increasing the cost and can also be lightweight. , the pressure difference between the high temperature side and the low temperature side is relatively small, for example, the water column pressure is 0.
It is suitable for clothes dryers, air conditioners, etc. that use heat exchangers with ~100 questions.

発明の構成 内面に親水層を形成したプラスチックヌパイプによシ熱
交換器の熱伝導パイプを構成させたものである。
Structure of the Invention The heat conduction pipe of the heat exchanger is constructed of a plastic pipe with a hydrophilic layer formed on the inner surface.

実施例の説明 厚みが01朋以下のポリエステルフィルムテープ1を第
2図に示すように一部を重ね巻きしながら斜めにエンド
レスに巻き、重ね部分は熱硬化型ホリエステル系接着剤
によシ溶着して円筒状のパイプ2とする。重ね部分は、
パイプ20強度を増大させ、それ以外の部分は薄いフィ
ルムにより形成されるので、熱交換効謁は良好なものと
なる。
DESCRIPTION OF THE EMBODIMENTS A polyester film tape 1 having a thickness of 0.01 mm or less is wound diagonally endlessly as shown in FIG. to form a cylindrical pipe 2. The overlapped part is
Since the strength of the pipe 20 is increased and the other parts are formed of a thin film, the heat exchange efficiency is improved.

このようにして得られたパイプ2を必要寸法に切断し、
第3図および第4図に示すように、透孔3を等間隔に設
けたプラヌチックス製の側板4に挿入して接着し、熱交
換器とすると、高温側の熱伝導面積を多くとってもコス
ト高とならなく、しかも軽量化となシバイブ本数は従来
め3〜4倍にすることができ、しかも高温側の温度が約
100℃以下で低温側の圧力差の少い場合に良好な効果
を示す。
The pipe 2 obtained in this way is cut into the required dimensions,
As shown in Figures 3 and 4, if a heat exchanger is constructed by inserting and gluing a side plate 4 made of Planutix with through holes 3 at equal intervals, the cost will be high even if the heat conduction area on the high temperature side is large. The number of shivives can be increased by 3 to 4 times compared to conventional methods, and it shows good effects when the temperature on the high temperature side is about 100℃ or less and the pressure difference on the low temperature side is small. .

パイプ2と水との接触角は、前進接触角が65〜700
.後退接触角が48〜6σとなし、その内面は、コロナ
放電処理を行ったり、または水ガラス等の親水性の薬剤
を塗布したりして親水性層を形成している。また親水性
を保持するための層形成としては次のような親水化処理
も効果がある。
The contact angle between the pipe 2 and water is an advancing contact angle of 65 to 700.
.. The receding contact angle is 48 to 6σ, and a hydrophilic layer is formed on the inner surface by corona discharge treatment or by coating with a hydrophilic agent such as water glass. In addition, the following hydrophilic treatment is also effective in forming a layer to maintain hydrophilicity.

エポキシ樹脂2〜16%、好ましくは8%、水酸化カル
シウム粉末O12〜6%、好ましくは1%、溶剤79〜
97.8%、好ましくは91%を混合してパイプ2の内
壁に約1〜3μの層6を形成する。
Epoxy resin 2-16%, preferably 8%, calcium hydroxide powder O 12-6%, preferably 1%, solvent 79-6%
97.8%, preferably 91%, is mixed to form a layer 6 of about 1-3μ on the inner wall of the pipe 2.

その結果、パイプ2の内壁に付着される水滴6は著しく
小さなものとなって結露効果が向上し、さらに空気だま
シも形成されなくなって熱交換効率も向上する。
As a result, the water droplets 6 adhering to the inner wall of the pipe 2 become extremely small, improving the dew condensation effect, and furthermore, no air pockets are formed, improving the heat exchange efficiency.

発明の効果 本発明は内面に親水層を形成したプラスチックスパイプ
によシ熱交換器の熱伝導パイプを構成して熱伝導効率を
良好にしたものである。
Effects of the Invention The present invention improves heat conduction efficiency by constructing a heat conduction pipe of a heat exchanger using a plastic pipe having a hydrophilic layer formed on its inner surface.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来における熱伝導パイプの断面説明図、第2
図は本発明の一実施例における熱伝導パイプの構成説明
図、第3図は同パイプを用いた熱交換要素の斜視図、第
4図は同熱交換要素の断面図、第5図は同熱伝導パイプ
の断面説明図である。 2・・・・・・パイプ、6・・・・・・親水巻層。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名−4
シ 味        派      瀧 派        派 1’−453−
Figure 1 is a cross-sectional explanatory diagram of a conventional heat conduction pipe, Figure 2
3 is a perspective view of a heat exchange element using the same pipe, FIG. 4 is a sectional view of the heat exchange element, and FIG. It is a cross-sectional explanatory view of a heat conduction pipe. 2... Pipe, 6... Hydrophilic winding layer. Name of agent: Patent attorney Toshio Nakao and 1 other person-4
Shimi faction Taki faction faction 1'-453-

Claims (1)

【特許請求の範囲】[Claims] 内面に親水層を形成したプラヌチックスパイデによシ熱
伝導パイプを構成してなる熱交換器。
A heat exchanger consisting of a heat conduction pipe made of planutic spide with a hydrophilic layer formed on its inner surface.
JP11350782A 1982-06-29 1982-06-29 Heat exchanger Pending JPS594897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11350782A JPS594897A (en) 1982-06-29 1982-06-29 Heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11350782A JPS594897A (en) 1982-06-29 1982-06-29 Heat exchanger

Publications (1)

Publication Number Publication Date
JPS594897A true JPS594897A (en) 1984-01-11

Family

ID=14614075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11350782A Pending JPS594897A (en) 1982-06-29 1982-06-29 Heat exchanger

Country Status (1)

Country Link
JP (1) JPS594897A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000012313A1 (en) * 1998-08-27 2000-03-09 Seiko Epson Corporation Hydrophilic structure, ink-jet printing head, method of their production, ink-jet printer, and other structural members
US7178584B2 (en) * 1997-12-04 2007-02-20 Korea Institute Of Science And Technology Plasma polymerization enhancement of surface of metal for use in refrigerating and air conditioning
CN107764125A (en) * 2017-11-08 2018-03-06 长沙今朝科技股份有限公司 Heat exchanger tube, shell-and-tube heat exchanger and MVR vertical tube evaporators

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5091397A (en) * 1973-12-12 1975-07-22
JPS538552U (en) * 1976-07-08 1978-01-25
JPS5936520A (en) * 1982-08-26 1984-02-28 Morita Kogyo Kk Method for stowing dust by compression

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5091397A (en) * 1973-12-12 1975-07-22
JPS538552U (en) * 1976-07-08 1978-01-25
JPS5936520A (en) * 1982-08-26 1984-02-28 Morita Kogyo Kk Method for stowing dust by compression

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7178584B2 (en) * 1997-12-04 2007-02-20 Korea Institute Of Science And Technology Plasma polymerization enhancement of surface of metal for use in refrigerating and air conditioning
WO2000012313A1 (en) * 1998-08-27 2000-03-09 Seiko Epson Corporation Hydrophilic structure, ink-jet printing head, method of their production, ink-jet printer, and other structural members
CN107764125A (en) * 2017-11-08 2018-03-06 长沙今朝科技股份有限公司 Heat exchanger tube, shell-and-tube heat exchanger and MVR vertical tube evaporators

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