【考案の詳細な説明】本考案は、発熱体を備えた貯湯式温水器の改良に関する
ものである。[Detailed Description of the Invention] The present invention relates to an improvement of a hot water storage type water heater equipped with a heating element.
従来の貯湯式温水器は、貯湯タンク内の下方に設けた発
熱体の加熱により水を自然循環せｊ−めて貯湯タンク内
全体を高温水にするが、一度貯湯タンク内の高温水を使
用してしまうと適温水を得るために長時間を要する欠点
があった。Conventional hot water storage type water heaters naturally circulate water by heating a heating element installed at the bottom of the hot water storage tank, making the entire tank a high-temperature water. This has the disadvantage that it takes a long time to obtain water at an appropriate temperature.
一方、この種の貯湯タンクは鉄板にほうろう処理が施さ
れるのが普通で、そのためこのほうろうのピンホール部
を防食するため、マグネシウム棒等による防食装置が設
けられるが、貯湯タンク内にこのタンクと直結した発熱
体やその他の金属露出部があるとタンクに対する防食効
果が阻害されるばかりか、防食装置の寿命をも短縮させ
る欠点があった。On the other hand, this type of hot water storage tank usually has an enameled steel plate, and therefore a corrosion prevention device such as a magnesium rod is installed to prevent corrosion of the pinholes in the enamel. If there is a heating element or other exposed metal parts directly connected to the tank, it not only impedes the corrosion protection effect on the tank, but also shortens the life of the corrosion protection device.
本考案は、これらの欠点を解消するもので以下図示実施
例について説明する。The present invention overcomes these drawbacks and will be described below with reference to the illustrated embodiments.
１は上部に給湯口２、下部に後述する給水口３を有する
主にほうろう処理を施した貯湯タンク、４はこの給水口
に対向する貯湯タンク土壁に溶接等により固着した取付
金具でその中央部に貯湯タンク１内と連通し、その内周
面に雌ねじ５を形成した貫通孔Ａを有している。1 is a mainly enameled hot water storage tank having a hot water supply port 2 at the top and a water supply port 3 (described later) at the bottom, and 4 is a mounting bracket fixed by welding or the like to the earthen wall of the hot water storage tank facing the water supply port in the center thereof. It has a through hole A that communicates with the inside of the hot water storage tank 1 and has a female thread 5 formed on its inner peripheral surface.
６は貯湯タンク１の底壁に溶接等により固着１−た受は
金具で、その中央部に貯湯タンク１内と連通ｔ、て給水
口３を構成する連通孔Ｂとこの連通孔の上部に連ってこ
れより大径の係止溝７を凹設している。6 is a metal fitting that is fixed to the bottom wall of the hot water storage tank 1 by welding or the like, and the center part thereof communicates with the inside of the hot water storage tank 1, and the communication hole B that constitutes the water supply port 3 is connected to the top of this communication hole. A locking groove 7 having a larger diameter than this is also recessed.
８は一端に取付金具４の雌ねじ５に螺合する雄ねじ９を
有する７ランジ１０を設けた直管状の発熱体で、７ラン
シ１０側の端部に電気端子２２が位置するようになって
いる。Reference numeral 8 denotes a straight tube-shaped heating element having a 7 flange 10 having a male thread 9 screwed into the female thread 5 of the mounting bracket 4 at one end, and an electrical terminal 22 is located at the end on the 7 lange 10 side. .
１１はこの発熱体の外周に沿ってこれを囲繞するように
設けた例えばステンレス製等の加熱パイプで、下方部途
中にこのパイプ内を上下に区画する仕切板１２を有し、
かつこの仕切板を境にその下方周壁に複数個の給水孔１
３を、また上方においてその上下周壁に貯湯タンク１の
上下と連通ずる複数個の循環孔１４゜１４を設けである
。Reference numeral 11 denotes a heating pipe made of stainless steel or the like, which is provided along the outer periphery of the heating element to surround it, and has a partition plate 12 in the middle of the lower part that divides the interior of the pipe into upper and lower parts.
A plurality of water supply holes 1 are provided on the lower circumferential wall of this partition plate as a boundary.
3, and a plurality of circulation holes 14 14 are provided in the upper and lower peripheral walls of the hot water storage tank 1 to communicate with the upper and lower sides of the hot water storage tank 1 .
１５は加熱パイプ１１の下端に嵌着したゴムなどの電気
絶縁物から成る弾力性ブツシュで、７ランジ１０を取付
金具４に取付けたとき、受は金具６の連通孔Ｂの孔縁よ
ジ外側において係止溝７に圧接される。Reference numeral 15 denotes an elastic bushing made of an electrically insulating material such as rubber that is fitted to the lower end of the heating pipe 11. When the 7 flange 10 is attached to the mounting bracket 4, the receiver is attached to the outer side of the hole edge of the communication hole B of the bracket 6. It is pressed into contact with the locking groove 7 at.
すなわち、給水口３は加熱パイプ１１内下部を通しての
み貯湯タンク１内に連通ずるものである。That is, the water supply port 3 communicates with the hot water storage tank 1 only through the lower part of the heating pipe 11.
１６は発熱体８の７ランシ１０と加熱パイプ１１上端間
に設けた例えば磁器等の電気絶縁物より成る絶縁座板で
、前記弾外性ブツシュ１５と共に加熱パイプ及び発熱体
８を貯湯タンク１に対して電気的に絶縁する作用を成す
。Reference numeral 16 denotes an insulating seat plate made of an electrical insulator such as porcelain, which is provided between the seven rungs 10 of the heating element 8 and the upper end of the heating pipe 11, and is used to connect the heating pipe and the heating element 8 to the hot water storage tank 1 together with the elastic bushing 15. It has the effect of electrically insulating against the other.
１７は加熱パイプ１１内で、加熱パイプ１１の上下周壁
の循環孔１４，１４と仕切板１２間に設けた例えば磁器
等の電気絶縁物からなる円形の振れ防止具で、加熱パイ
プ１１内に発熱体８を挿入した状態でも前記循環孔１４
，１４を塞ぐことなく発熱体８先端と仕切板１２間にあ
って、かつ発熱体８を取除くことにより加熱パイプ１１
内から取り出せるようになっている。Reference numeral 17 denotes a circular vibration prevention device made of an electrical insulator such as porcelain, which is provided between the circulation holes 14, 14 on the upper and lower circumferential walls of the heating pipe 11 and the partition plate 12 in the heating pipe 11, and prevents heat generation in the heating pipe 11. Even when the body 8 is inserted, the circulation hole 14
, 14 between the tip of the heating element 8 and the partition plate 12, and by removing the heating element 8, the heating pipe 11
It can be taken out from inside.
これにより発熱体８を加熱パイプ１１内に挿入した状態
でも発熱体８と加熱パイプ１１とが電気的に接触するこ
とがなく、発熱体８は同様に貯湯タンク１に対しても完
全に電気絶縁が行なえる。As a result, even when the heating element 8 is inserted into the heating pipe 11, there is no electrical contact between the heating element 8 and the heating pipe 11, and the heating element 8 is also completely electrically insulated from the hot water tank 1. can be done.
１８は貯湯タンク１内下方に挿入した防食用の電極棒、
１９は給水口３に連通ずる給水管、２０は給湯口２に連
通ずる給湯管、２１は発熱体７ランジ１０と取付金具４
間に介装したパツキンである。18 is an electrode rod for corrosion protection inserted into the lower part of the hot water storage tank 1;
19 is a water supply pipe that communicates with the water supply port 3; 20 is a hot water supply pipe that communicates with the hot water supply port 2; 21 is a heating element 7, a flange 10, and a mounting bracket 4;
It's Patsukin that was inserted in between.
以上の構成において給水管１９に水源を接続し給水をす
ると貯湯タンク１内の給水口３に対応して設けた加熱パ
イプ１１の仕切板１２と加熱パイプ１１の給水孔１３．
１３により水源水圧を制圧し貯湯タンク１の下部からゆ
るやかに給水され、貯湯タンク１内を満水にする。In the above configuration, when a water source is connected to the water supply pipe 19 and water is supplied, the partition plate 12 of the heating pipe 11 provided corresponding to the water supply port 3 in the hot water storage tank 1 and the water supply hole 13 of the heating pipe 11.
13 controls the water source water pressure and slowly supplies water from the lower part of the hot water storage tank 1 to fill the hot water storage tank 1 with water.
この状態で加熱パイプ１１内仕切板１２の上方部に設け
た発熱体８に通電すると加熱パイプ１１内の少量の水が
主に加熱されて急速に高温水となり、加熱パイプ１１内
を上昇し、その上部周壁に開口されである上方の循環孔
１４から順次貯湯タンク１上部に送られ、これに伴ない
加熱パイプ１１の下方周壁に開口された下方の循環孔１
４から貯湯タンク１底部の冷水が吸引され貯湯タンク１
内には図中矢印で示すよ５．を対流が生じる。In this state, when electricity is applied to the heating element 8 provided above the partition plate 12 inside the heating pipe 11, a small amount of water inside the heating pipe 11 is mainly heated and rapidly becomes high temperature water, which rises inside the heating pipe 11. Hot water is sequentially sent to the upper part of the storage tank 1 from the upper circulation hole 14 opened in the upper peripheral wall thereof, and the lower circulation hole 1 opened in the lower peripheral wall of the heating pipe 11 accordingly.
The cold water at the bottom of the hot water storage tank 1 is sucked from the hot water storage tank 1.
The arrows in the figure indicate 5. Convection occurs.
このとき振れ防止具１７は下部循環孔１４よりも下方に
あるので水の循環に対して支障を及ぼすことはない。At this time, since the shake preventer 17 is located below the lower circulation hole 14, it does not interfere with water circulation.
そ１−で暖められた高温水の上昇と拡散は比較的緩漫で
、かつ上部に溜った高温水は低温水に比べて極めて軽い
ので貯湯タンク１内上下の循環を生じ難く、上方から下
方へ層状に貯えられ発熱体８を引きつづき通電すれば貯
湯タンク１上部の高温水は増加して順次下方に至り、温
度調節器（図示せず）を用いることにより、貯湯タンク
１内の水金部が所定の最終温度に達する。The rise and diffusion of the high-temperature water heated in Part 1- is relatively slow, and the high-temperature water accumulated at the top is extremely light compared to low-temperature water, so it is difficult to circulate up and down inside the hot water storage tank 1, and it flows from the top to the bottom. If the heating element 8 is continuously energized, the high-temperature water in the upper part of the hot water storage tank 1 will increase and gradually reach the lower part. reaches a predetermined final temperature.
そして加熱パイプ１１は貯湯タンク１に対してブツシュ
１５と絶縁座板１６とにより電気的に絶縁され、かつ加
熱パイプ１１内に設けた発熱体８が偏心しても発熱体８
の下端すなわち自由端部と仕切板１２との間には振れ防
止具１７を介在させているので、発熱体８と加熱パイプ
１１が確実に電気絶縁されることにより、貯湯タンク１
に満水にした状態での防食用電極棒１８の効果は貯湯タ
ンク１の鉄露出部のみに発揮できる。The heating pipe 11 is electrically insulated from the hot water storage tank 1 by a bushing 15 and an insulating seat plate 16, and even if the heating element 8 provided in the heating pipe 11 is eccentric, the heating element 8
Since the vibration prevention device 17 is interposed between the lower end, that is, the free end, and the partition plate 12, the heating element 8 and the heating pipe 11 are reliably electrically insulated, so that the hot water storage tank 1
The effect of the anti-corrosion electrode rod 18 when fully filled with water can be exerted only on the exposed iron portion of the hot water storage tank 1.
とくに振れ防止具１７を磁器等にて形成したものは寿命
が長く、かつ万−割れたりした時も下部循環孔１４より
下方にあるので循環孔１４を塞いだりするおそれはない
。In particular, the anti-vibration device 17 made of porcelain or the like has a long life, and even if it breaks, it is located below the lower circulation hole 14, so there is no risk of blocking the circulation hole 14.
したがってこの考案によれば、短時間で貯湯タンク上部
に層状に湯が貯えられ、これを効率よく採湯できること
はもちろん、構造簡単にしてしかも発熱体と加熱パイプ
との位置関係を確実に定められ防食効果を有効に発揮し
得、もって貯湯タンクと防食棒の長寿命化を図った貯湯
式温水器を提供できる。Therefore, according to this invention, hot water can be stored in a layer at the top of the hot water storage tank in a short period of time, and this hot water can be extracted efficiently.In addition, the structure is simple and the positional relationship between the heating element and the heating pipe can be determined reliably. It is possible to provide a hot water storage type water heater that can effectively exhibit an anti-corrosion effect and thereby extend the life of the hot water storage tank and anti-corrosion rod.
図は本考案になる貯湯式温水器の一実施例を示す縦断面
図である。１は貯湯タンク、２は給湯口、３は給水口、８は発熱体
、１１は加熱パイプ、１４は循環孔、１５はブツシュ、
１６は絶縁座板、１７は振れ防止具、１８は電極棒であ
る。The figure is a longitudinal sectional view showing an embodiment of the hot water storage type water heater according to the present invention. 1 is a hot water storage tank, 2 is a hot water supply port, 3 is a water supply port, 8 is a heating element, 11 is a heating pipe, 14 is a circulation hole, 15 is a bush,
16 is an insulating seat plate, 17 is a shake preventer, and 18 is an electrode rod.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7097978UJPS5942591Y2 (en) | 1978-05-25 | 1978-05-25 | hot water storage type water heater |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7097978UJPS5942591Y2 (en) | 1978-05-25 | 1978-05-25 | hot water storage type water heater |
| Publication Number | Publication Date |
|---|---|
| JPS54172348U JPS54172348U (en) | 1979-12-05 |
| JPS5942591Y2true JPS5942591Y2 (en) | 1984-12-13 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7097978UExpiredJPS5942591Y2 (en) | 1978-05-25 | 1978-05-25 | hot water storage type water heater |
| Country | Link |
|---|---|
| JP (1) | JPS5942591Y2 (en) |
| Publication number | Publication date |
|---|---|
| JPS54172348U (en) | 1979-12-05 |
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