JPH0612233B2 - Aluminum heat exchanger - Google Patents
Aluminum heat exchangerInfo
- Publication number
- JPH0612233B2 JPH0612233B2 JP60267812A JP26781285A JPH0612233B2 JP H0612233 B2 JPH0612233 B2 JP H0612233B2 JP 60267812 A JP60267812 A JP 60267812A JP 26781285 A JP26781285 A JP 26781285A JP H0612233 B2 JPH0612233 B2 JP H0612233B2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- synthetic resin
- preservative
- corrosion
- aluminum
- 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.)
- Expired - Lifetime
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
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/20—Safety or protection arrangements; Arrangements for preventing malfunction for preventing development of microorganisms
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、アルミニウム製熱交換器に関する。TECHNICAL FIELD The present invention relates to an aluminum heat exchanger.
従来の技術 従来、ルーム・クーラ等に使用されるアルミニウム製熱
交換器のフィンは、耐食性を付与するためにアルミニウ
ム板の表面に合成樹脂製耐食性皮膜が設けられ、さらに
親水性を付与するために耐食性皮膜の表面に親水性皮膜
が設けられていた。2. Description of the Related Art Conventionally, fins of aluminum heat exchangers used for room coolers, etc. are provided with a synthetic resin corrosion resistant coating on the surface of an aluminum plate to impart corrosion resistance and to impart hydrophilicity. A hydrophilic film was provided on the surface of the corrosion resistant film.
発明が解決しようとする課題 しかしながら、このような従来のアルミニウム製熱交換
器では、耐食性皮膜および親水性皮膜によって、不快な
臭いが発生するという問題があった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a conventional aluminum heat exchanger, there is a problem that an unpleasant odor is generated by the corrosion resistant coating and the hydrophilic coating.
この発明の目的は、上記の従来技術の問題を解決し、耐
食性および親水性を有しかつ不快臭のないフィンを備え
たアルミニウム製熱交換器を提供しようとするにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems of the prior art and to provide an aluminum heat exchanger provided with fins having corrosion resistance and hydrophilicity and having no unpleasant odor.
課題を解決するための手段 この発明は、上記の目的を達成するために、アルミニウ
ム板の表面に防腐剤を含む合成樹脂製耐食性皮膜が設け
られ、かつこの合成樹脂製耐食性皮膜の表面に防腐剤を
含む親水性皮膜が設けられたフィンを備えていることを
特徴とする、アルミニウム製熱交換器を要旨としてい
る。Means for Solving the Problems In order to achieve the above object, the present invention is provided with a synthetic resin corrosion-resistant coating containing an antiseptic agent on the surface of an aluminum plate, and the antiseptic agent on the surface of the synthetic resin corrosion-resistant coating. An aluminum heat exchanger is characterized in that it is provided with fins provided with a hydrophilic film containing a.
ここで、合成樹脂製耐食性皮膜としては、例えばアクリ
ル樹脂皮膜があげられる。Here, examples of the synthetic resin corrosion-resistant coating include an acrylic resin coating.
また、親水性皮膜としては、アルカリケイ酸塩（水ガラ
ス）をベースとした皮膜およびシリカ等の多孔質物質と
有機高分子よりなる皮膜があげられる。アルカリケイ酸
塩をベースとした皮膜をフィンに形成するには、フィン
の合成樹脂製耐食性皮膜の表面に、アルカリケイ酸塩の
水溶液を塗布し、このアルカリケイ酸塩の水溶液を、例
えばリン酸塩、グリオキザール等で硬化させる。多孔質
物質と有機高分子よりなる皮膜をフィンに形成するに
は、例えば水溶性ポリオレフィン系樹脂のような有機高
分子の水溶液中に、多孔質シリカを添加しておき、この
シリカを含む水溶液を、フィンの合成樹脂製耐食性皮膜
の表面に塗布して、乾燥させる。Examples of the hydrophilic coating include a coating based on alkali silicate (water glass) and a coating made of a porous material such as silica and an organic polymer. To form a film based on alkali silicate on the fin, an aqueous solution of alkali silicate is applied to the surface of the corrosion-resistant film made of synthetic resin of the fin, and the aqueous solution of alkali silicate is used, for example, phosphoric acid. Harden with salt, glyoxal, etc. In order to form a film composed of a porous material and an organic polymer on the fin, porous silica is added to an aqueous solution of an organic polymer such as a water-soluble polyolefin resin, and an aqueous solution containing this silica is added. , Apply to the surface of the synthetic resin corrosion-resistant coating of the fin, and dry.
防腐剤としては、安息香酸またはその塩類、サリチル酸
またはその塩類、ソルビン酸またはその塩類、デヒドロ
酢酸またはその塩類、パラオキシ安息香酸エステル類、
２−（２−フリル）−３−（５−ニトロ−２−フリル）
アクリル酸アミドなどが用いられる。As the preservative, benzoic acid or a salt thereof, salicylic acid or a salt thereof, sorbic acid or a salt thereof, dehydroacetic acid or a salt thereof, paraoxybenzoic acid ester,
2- (2-furyl) -3- (5-nitro-2-furyl)
Acrylic amide or the like is used.
熱交換器のフィンに、防腐剤を含む合成樹脂製耐食性皮
膜を設けるには、合成樹脂製耐食性皮膜形成用の表面処
理液に、上記１種または２種以上の防腐剤を添加し、防
腐剤が添加された表面処理液を、フィンを構成するアル
ミニウム板に塗布するか、あるいは防腐剤が添加された
表面処理液にフィンを構成するアルミニウム板を浸す。
上記表面処理液に対する防腐剤の添加量は、例えば０．
０００５〜１．０重量％、好ましくは０．００２〜０．
１重量％である。In order to provide a synthetic resin corrosion-resistant coating containing a preservative on the fins of the heat exchanger, the above-mentioned one or more preservatives are added to the surface treatment liquid for forming the synthetic resin corrosion-resistant coating, and the preservative is added. Is applied to the aluminum plate forming the fins, or the aluminum plate forming the fins is dipped in the surface treatment liquid containing the preservative.
The amount of the preservative added to the surface treatment solution is, for example, 0.
0005 to 1.0% by weight, preferably 0.002 to 0.
It is 1% by weight.
このようにして形成された防腐剤を含む合成樹脂製耐食
性皮膜の表面に、さらに防腐剤を含む親水性皮膜を設け
る場合は、防腐剤が添加された親水性皮膜形成用の表面
処理液を用いて、上記と同様に処理すれば良い。このと
き、親水性皮膜形成用の表面処理液に対する防腐剤の添
加量は、上記と同様である。When the surface of the synthetic resin-made corrosion resistant coating containing the preservative thus formed is further provided with a hydrophilic coating containing a preservative, a surface treatment liquid for forming a hydrophilic coating containing a preservative is used. Then, the same process as above may be performed. At this time, the amount of the preservative added to the surface treatment liquid for forming the hydrophilic film is the same as above.
実施例 つぎに、この発明の実施例を図面に基づいて説明する。Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.
まず第２図において、アルミニウム製熱交換器(10)は、
多数の冷媒通路を有する蛇行状偏平熱交換管(2)と、こ
れの直管部(2a)同志の間に介在されたコルゲート・フィ
ン(3)とによって構成されており、熱交換管(2)の両端に
はヘッダ(4)(5)がそれぞれ取り付けられている。First, in FIG. 2, the aluminum heat exchanger (10) is
It is composed of a meandering flat heat exchange tube (2) having a large number of refrigerant passages, and a corrugated fin (3) interposed between the straight tube portions (2a) of the heat exchange tube (2). Headers (4) and (5) are attached to both ends of ().
第１図に示すように、上記の熱交換器(10)のフィン(3)
は、アルミニウム板(1)の表面に防腐剤(7)を含む合成樹
脂製耐食性皮膜(9)が設けられ、その上に防腐剤(7)を含
む親水性皮膜(8)が設けられているものである。As shown in FIG. 1, the fins (3) of the above heat exchanger (10)
Is provided with a synthetic resin corrosion-resistant coating (9) containing an antiseptic (7) on the surface of an aluminum plate (1), and a hydrophilic coating (8) containing an antiseptic (7) is provided on it. It is a thing.
このような熱交換器(10)は、例えば以下のようにして製
造される。Such a heat exchanger (10) is manufactured, for example, as follows.
熱交換器(10)のフィン(3)の素材としては、厚さ１mmお
よび幅５０mmのＪＩＳ Ａ−１１００Ｈ２４アルミニウ
ム板(1)を用い、このアルミニウム板(1)の表面に、０．
１重量％の防腐剤(7)が添加された水溶性アクリル樹脂
を塗布して、防腐剤(7)を含む厚さほぼ１ミクロンの合
成樹脂製耐食性皮膜(9)を形成する。As a material for the fins (3) of the heat exchanger (10), a JIS A-1100H24 aluminum plate (1) having a thickness of 1 mm and a width of 50 mm is used, and the surface of the aluminum plate (1) has a thickness of 0.
A water-soluble acrylic resin containing 1% by weight of a preservative (7) is applied to form a synthetic resin corrosion resistant film (9) having a thickness of about 1 micron and containing the preservative (7).
つぎに、その上にアルカリケイ酸塩２重量％とグリオキ
ザール０．８重量％と防腐剤(7)０．１重量％とを含む
水溶液を塗布して親水性皮膜(8)を形成し、フィン(3)つ
くる。ついで、このフィン(3)をコルゲート・フィンの
形状に成形し、成形後のフィン(3)と熱交換器(2)とを組
み合せて、熱交換器(10)を組み立てる。Next, an aqueous solution containing 2% by weight of an alkali silicate, 0.8% by weight of glyoxal and 0.1% by weight of a preservative (7) is applied thereon to form a hydrophilic film (8). (3) Create. Next, the fin (3) is formed into a corrugated fin shape, and the formed fin (3) is combined with the heat exchanger (2) to assemble the heat exchanger (10).
また、熱交換器を組み立てた後に、防腐剤が添加された
合成樹脂製耐食性皮膜形成用の表面処理液に熱交換器を
浸し、熱交換器全体の表面に、防腐剤を含む耐食性皮膜
を設けたのち、防腐剤が添加された親水性皮膜形成用の
表面処理液に同熱交換器を浸し、熱交換器全体の表面
に、防腐剤を含む親水性皮膜を設けるようにしてもよ
い。Also, after assembling the heat exchanger, soak the heat exchanger in a surface treatment solution for synthetic resin corrosion-resistant film formation to which an antiseptic agent has been added, and provide a corrosion-resistant film containing an antiseptic agent on the entire surface of the heat exchanger. After that, the same heat exchanger may be dipped in a surface treatment solution for forming a hydrophilic film to which a preservative is added, and a hydrophilic film containing a preservative may be provided on the entire surface of the heat exchanger.
発明の効果 この発明によるアルミニウム製熱交換器は、上述のよう
に、アルミニウム板の表面に防腐剤を含む合成樹脂製耐
食性皮膜が設けられ、かつこの合成樹脂製耐食性皮膜の
表面に防腐剤を含む親水性皮膜が設けられたフィンを備
えているものであるから、耐食性および親水性を有して
いて、しかも不快臭のないアルミニウム製熱交換器が得
られるという効果を奏する。As described above, the aluminum heat exchanger according to the present invention is provided with a synthetic resin corrosion-resistant coating containing an antiseptic on the surface of an aluminum plate, and the synthetic resin corrosion-resistant coating containing a preservative on the surface. Since the fins provided with the hydrophilic film are provided, it is possible to obtain an aluminum heat exchanger having corrosion resistance and hydrophilicity and having no unpleasant odor.
図面はこの発明の各種実施例を示すもので、第１図は第
この発明による熱交換器のフィンの拡大断面図、第２図
は同熱交換器の概略斜視図である。 (1)……アルミニウム板、(3)……フィン、(7)……防腐
剤、(8)……親水性皮膜、(9)……合成樹脂製耐食性皮
膜、(10)……熱交換器。The drawings show various embodiments of the present invention. FIG. 1 is an enlarged sectional view of a fin of a heat exchanger according to the present invention, and FIG. 2 is a schematic perspective view of the heat exchanger. (1) …… Aluminum plate, (3) …… Fin, (7) …… Preservative, (8) …… Hydrophilic film, (9) …… Synthetic resin corrosion resistant film, (10) …… Heat exchange vessel.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 伊藤 昌明 大阪府堺市海山町６丁224番地 昭和アル ミニウム株式会社内 (56)参考文献 特開 昭60−50397（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Ito 6-224 Kaiyamacho, Sakai City, Osaka Prefecture Showa Aluminum Co., Ltd. (56) References JP-A-60-50397 (JP, A)
Claims (1)
む合成樹脂製耐食性皮膜(9)が設けられ、かつこの合成
樹脂製耐食性皮膜(9)の表面に防腐剤(7)を含む親水性皮
膜(8)が設けられたフィン(3)を備えていることを特徴と
する、アルミニウム製熱交換器。1. A synthetic resin corrosion-resistant coating (9) containing an antiseptic (7) is provided on the surface of an aluminum plate (1), and the antiseptic (7) is provided on the surface of this synthetic resin corrosion-resistant coating (9). A heat exchanger made of aluminum, comprising a fin (3) provided with a hydrophilic film (8) containing
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60267812A JPH0612233B2 (en) | 1985-11-27 | 1985-11-27 | Aluminum heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60267812A JPH0612233B2 (en) | 1985-11-27 | 1985-11-27 | Aluminum heat exchanger |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5020158A Division JPH0678875B2 (en) | 1993-02-08 | 1993-02-08 | Aluminum heat exchanger fin material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62129695A JPS62129695A (en) | 1987-06-11 |
| JPH0612233B2 true JPH0612233B2 (en) | 1994-02-16 |
Family
ID=17449945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60267812A Expired - Lifetime JPH0612233B2 (en) | 1985-11-27 | 1985-11-27 | Aluminum heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612233B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2683812B2 (en) * | 1988-10-05 | 1997-12-03 | 昭和アルミニウム株式会社 | Heat exchanger with aluminum fins |
| JP5232691B2 (en) * | 2009-02-27 | 2013-07-10 | 住友軽金属工業株式会社 | Aluminum fin material for heat exchanger and fin press method using the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6050397A (en) * | 1983-08-31 | 1985-03-20 | Diesel Kiki Co Ltd | Heat exchanger made of aluminum |
-
1985
- 1985-11-27 JP JP60267812A patent/JPH0612233B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62129695A (en) | 1987-06-11 |
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