JPS6127450A - Solar heat water heater - Google Patents

Abstract

PURPOSE:To eliminate a so-called ''blue water'' problem in which an insoluble blue- colored substance adheres to the apparatus by bringing a metal having an ionization tendency which is greater than that of a heat exchange part, into contact with the heat exchange part, and fitting the metal to the heat exchange part by a solid wire having a spring effect, and separating the fixed wire from the heat exchange part when the metal is consumed. CONSTITUTION:A magnesium round bar 5a is used as a metal having an ionization tendency which is greater than that of a heat exchange part 4. A fixed wire 51 if formed by working a stainless wire or the like into a V-shape, and is allowed to have an elasticity of a spring. Upon loading of the apparatus. the fixed wire 5l is suspended on a central pipe of three heat exchange pipes 4, and thereafter two magnesium 5a are intersected in a cross shape. Then, both tip ends of the fixed wire 5l are suspended on heat exchange parts 4 on both sides, and are fixed thereto. Thus the fixed wire 5l intersects with the heat exchange parts 4. After using the apparatus for a long period of time, when the magnesium bars are worm out, the fixed wire 5l drops downward, and is separated from the heat exchange part 4. Even if the separation is not perfect, the fixed wire 5l with respect to the hat exchange part 4 does not create a condition to cause any clearance corrosion because there are spaces at L-shaped curved portions (b).

Description

【発明の詳細な説明】 産業上の利用分野 本発明は太陽熱温水器に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a solar water heater.

従来例の構成とその問題点 銅パイプを素材としたヒートパイプ式の熱交換部を太陽
熱温水器に採用する際、通常、貯湯タンクの水中に銅の
裸管状態で、ヒートパイプの熱交換部が複数本挿入され
る。この種の方式で、昇温貯湯された水には、熱交換部
素成の材質である銅が溶出して銅イオン濃度が高くなっ
ている。いわ２″−ノ ゆる銅パイプ表面全体に亘り腐食を起すのが通例である
。Conventional structure and its problems When a heat pipe heat exchange section made of copper pipes is used in a solar water heater, the heat exchange section of the heat pipe is usually placed in the water of a hot water storage tank as a bare copper tube. Multiple lines are inserted. In this type of system, the water stored at an elevated temperature has a high copper ion concentration due to the elution of copper, which is the material of the heat exchanger. Corrosion typically occurs over the entire surface of the 2" copper pipe.

この銅イオン濃度は、水道水基準である１　ｐｐｍを越
えることも多い。この銅イオンの溶出は、使用水に含ま
れる塩素イオン、硫酸イオン、硝酸イオン、残留塩素な
どの増加及び水素イオン濃度（ＰＨ）の低下による影響
が大きい為である。This copper ion concentration often exceeds the tap water standard of 1 ppm. This elution of copper ions is largely influenced by an increase in chlorine ions, sulfate ions, nitrate ions, residual chlorine, etc. contained in the water used and a decrease in hydrogen ion concentration (PH).

この銅イオンを含む水を浴槽、洗面器、タオルに繰り返
し接触させていると、不溶性の青色物質が付着する場合
がある。これは石けんや汗などに含まれている脂肪酸、
アンモニウムと反応して脂肪酸鋼又は、銅のアンモニウ
ム塩が生成して、青色の物質となるためである。一般に
云われている「青い水」問題である。If water containing copper ions is repeatedly brought into contact with bathtubs, washbasins, and towels, insoluble blue substances may adhere to them. This is a fatty acid found in soap, sweat, etc.
This is because fatty acid steel or ammonium salt of copper is produced by reacting with ammonium, resulting in a blue substance. This is what is commonly referred to as the "blue water" problem.

発明の目的 本発明は、上記の不溶性の青色物質が付着する、いわゆ
る「青い水」問題を無くすことを目的とする０ 発明の構成 上記目的を達成するため本発明は、熱交換部に、３ベ−
ノ それよりもイオン化傾向の犬なる金属を当接し、バネ作
用をもつ固定線にて取付け、固定線は金属の消耗時には
熱交換部から離脱させるものである。OBJECTS OF THE INVENTION The present invention aims to eliminate the so-called "blue water" problem in which the above-mentioned insoluble blue substances adhere.Constitution of the InventionIn order to achieve the above-mentioned objects, the present invention has three base
Instead, a metal that tends to ionize is brought into contact with the heat exchanger, and a fixed wire with a spring action is used to attach the wire, and the fixed wire is detached from the heat exchanger when the metal wears out.

実施例の説明 第１図に於て、１が太陽熱温水器の本体であり、その内
側に銅パイプ内にフロンガス等を封入したヒートパイプ
２が装着される。ヒートパイプ２の上方部には熱交換部
４があり、太陽熱を集熱した熱量を、貯湯タンク３の水
３ｂに移す働きをする。DESCRIPTION OF THE EMBODIMENTS In FIG. 1, reference numeral 1 denotes the main body of a solar water heater, and a heat pipe 2, which is a copper pipe filled with fluorocarbon gas or the like, is installed inside the main body of the solar water heater. There is a heat exchange section 4 above the heat pipe 2, which functions to transfer the amount of heat collected from the sun to the water 3b of the hot water storage tank 3.

この熱交換部４の上面に防食ユニット５を取りつける。A corrosion protection unit 5 is attached to the upper surface of this heat exchange section 4.

この防食ユニット６は、第２図に於て、貯湯タンク上面
開口部３ａ、即ち給水用ボールタップ６を装着する部分
から任意に取りつけ取り外しが出来る形態寸法に加工さ
れる。This anti-corrosion unit 6 is machined to a size that allows it to be attached and removed at will from the upper opening 3a of the hot water storage tank, ie, from the portion where the water supply ball tap 6 is attached, as shown in FIG.

第３図に於て、この防食ユニット６の構造を説明する。The structure of this anti-corrosion unit 6 will be explained with reference to FIG.

６ａがマグネシュームの棒で、これが熱交換部４よりも
イオン化傾向の犬なる金属として用いたものである。こ
の棒５ａは図示の如く２本でもよいが、一本丈、もしく
は複数本であってもよい。6a is a rod of magnesium, which is used as a metal that has a higher tendency to ionize than the heat exchanger 4. The number of the rods 5a may be two as shown in the figure, but it may also be one length or a plurality of rods.

マグネシュームの棒６ａには内部に芯線材が同時加工さ
れていないもの、即ち丸棒全部がマグネシウム素材のも
のを使用する。固定線５１はステンレス線等によ９７字
状に加工し、バネ弾性を持たせたものとする。Ｖ字状の
両切断、先端部はＬ字状に曲げておく（第６図）。The magnesium rod 6a used is one in which the core wire is not simultaneously processed, that is, the entire round rod is made of magnesium material. The fixed wire 51 is made of stainless steel wire or the like and processed into a 97-shape and has spring elasticity. Cut both sides in a V-shape and bend the tip into an L-shape (Figure 6).

構造的にはこれ丈のものであるが、装着の際はこの固定
線５１を３本の熱交換部４のうち中央のパイプに引掛け
て後、マグネシュームの棒５ａ２本を図示の如く十字状
に交差させて置き、固定線の６１の両先端を、両側の熱
交換部４に引掛け、止めているのである。この状態で固
定線５１は熱交換部４に交差したものとなる。このヒー
トパイプ２は、通常複数本で形成するが、本防食ユニッ
ト６の装着の為に用いるのは３本丈である。又、複数本
のヒートパイプ２は、集熱部のフィン２ａにより電気的
に一体のものとなっている。本防食ユニット６が長時間
使用後、マグネシュームの棒５ａが損耗すると、第６図
の如く切断状態となり、固定線６１は下方へ落下し、熱
交換部４から離脱５ベノ する。万一、離脱不完全であっても、熱交換部４に対す
る固定線６１は、Ｌ字曲げ部（ロ）の部分の空間があり
、隙間腐食を起す様な条件を作らない。Structurally, it is this length, but when installing it, hook this fixed wire 51 to the central pipe of the three heat exchange parts 4, and then connect the two magnesium rods 5a in a cross shape as shown in the figure. The two ends of the fixing wire 61 are hooked onto the heat exchange parts 4 on both sides and fixed. In this state, the fixed line 51 crosses the heat exchange section 4. This heat pipe 2 is usually formed of a plurality of pieces, but the length of three pieces is used for attaching the present anticorrosion unit 6. Further, the plurality of heat pipes 2 are electrically integrated by the fins 2a of the heat collecting portion. When the magnesium rod 5a is worn out after the anticorrosion unit 6 has been used for a long period of time, it becomes disconnected as shown in FIG. Even if detachment is incomplete, the fixing wire 61 to the heat exchange part 4 has a space at the L-shaped bent part (b), and does not create conditions that would cause crevice corrosion.

一方、構造的特長として、固定線ｒｓｌ、マグネシュー
ムの棒５ａ、熱交換部４、各々の相互接触状態は、第４
図の（イ）の如く、丸線対丸棒の直交状態であり、全て
点接触状態が基本となっており、通常の隙間腐食要因部
が極めて少ない。On the other hand, as a structural feature, the mutual contact state of the fixed wire rsl, the magnesium rod 5a, and the heat exchange part 4 is as follows.
As shown in (a) of the figure, the round wire and round bar are in a perpendicular state, and all points are basically in contact with each other, and there are extremely few areas that cause normal crevice corrosion.

発明の効果 本発明では銅よりイオン化傾向の犬なる金属が積極的に
溶出し、銅の溶出が抑制されるので、「青い水」問題は
起らなくなる。またバネ弾性を利用しているので、熱交
換部との長期、水中での電気的接続が良好に保たれるの
で防食機能が安定する。Effects of the Invention In the present invention, metals that are more ionized than copper are actively eluted, and the leaching of copper is suppressed, so that the "blue water" problem does not occur. In addition, since spring elasticity is used, electrical connection with the heat exchange part is maintained well over a long period of time underwater, resulting in stable corrosion protection.

即ち、犠牲陽極棒としての効果を発揮するわけであるが
、との犠牲陽極棒の消耗時には、再度付加する必要が生
ずる。これを付加せず放置されると通常、固定線と熱交
換部の関係は、異極金属接触による電食や、隙間腐食の
機会を作ることにな６ベーノ る。本構成によれば、犠牲陽極棒の消耗が即ち、固定線
の離脱を実現することになるので、上記の如き心配が全
くない。仮りに何らかの理由で、離脱不十分の現象を生
じた場合であっても、構造接触部が全て点である為、隙
間腐食の恐れは皆無に近い。一方、固定線の構造が上記
の目的でＬ字曲げのみ加工方法をとることになり、工作
的にも容易で、安価に提供でき、信頼性も高いものとな
る。That is, although it is effective as a sacrificial anode rod, when the sacrificial anode rod wears out, it becomes necessary to add it again. If left without this addition, the relationship between the fixed wire and the heat exchanger will usually create an opportunity for electrolytic corrosion or crevice corrosion due to contact between different metals. According to this configuration, the sacrificial anode rod is consumed, that is, the fixed wire is detached, so there is no need for the above-mentioned concerns. Even if insufficient separation occurs for some reason, there is almost no risk of crevice corrosion since all structural contact parts are points. On the other hand, for the above-mentioned purpose, the structure of the fixed wire requires only L-shaped bending, which is easy to work with, can be provided at low cost, and has high reliability.

【図面の簡単な説明】 第１図は本発明の一実施例の太陽熱温水器の断面図、第
２図は同要部の一部切欠斜視図、第３図は同防食ユニッ
ト部の斜視図、第４図は同防食ユニットの正面図、第６
図は同作動後の正面図、第６図は同固定線の斜視図であ
る。 １・・・・・・太陽熱温水器の本体、２・・・・・・ヒ
ートパイプ、２ａ・・・・・・集熱フィン、３・・・・
・・貯湯タンク、３ａ・・・・・・土面開孔部、３ｂ・
・・・・・水、４・・・・・・熱交換部、６・・・・・
・防食ユニット、５ａ・・・・・・マグネシュームの棒
（金属）、５１・・・・・・固定線、６・・・・・・ボ
ールタップ、（イ）・・・・・・点接触部、（ロ）・・
・・・・Ｌ字曲げ部。 区　　　　　　　＋　　　　　り 啼　　　　　　　　　　　　　　　綜 綜 手続補正書（方戊９ 昭和６９年１１月　２８８[Brief Description of the Drawings] Fig. 1 is a sectional view of a solar water heater according to an embodiment of the present invention, Fig. 2 is a partially cutaway perspective view of the main parts, and Fig. 3 is a perspective view of the anticorrosion unit. , Figure 4 is a front view of the corrosion protection unit, Figure 6 is a front view of the corrosion protection unit.
The figure is a front view after the same operation, and FIG. 6 is a perspective view of the same fixing line. 1... Main body of solar water heater, 2... Heat pipe, 2a... Heat collection fin, 3...
...Hot water storage tank, 3a...Soil surface opening, 3b.
...Water, 4...Heat exchange section, 6...
・Anti-corrosion unit, 5a...Magnesium rod (metal), 51...Fixed wire, 6...Ball tap, (A)...Point contact part, (B)··
...L-shaped bending part. ward + ri 啼 Comprehensive procedure amendment (Hosho 9 November 1988 288

Claims (1)

【特許請求の範囲】[Claims] 銅又は銅合金でなる複数本の熱交換部の一方側に、この
熱交換部構成金属よりイオン化傾向の大なる金属を当接
させるとともに、バネ作用をもつ固定線により固定し、
この固定線は当接金属の消耗時には、熱交換部から離脱
させる構成とした太陽熱温水器。A metal having a higher ionization tendency than the metals constituting the heat exchange part is brought into contact with one side of a plurality of heat exchange parts made of copper or copper alloy, and is fixed by a fixed wire having a spring action,
This solar water heater has a structure in which this fixed wire is detached from the heat exchanger when the contact metal wears out.