JPH044663Y2 - - Google Patents
Info
- Publication number
- JPH044663Y2 JPH044663Y2 JP10245186U JP10245186U JPH044663Y2 JP H044663 Y2 JPH044663 Y2 JP H044663Y2 JP 10245186 U JP10245186 U JP 10245186U JP 10245186 U JP10245186 U JP 10245186U JP H044663 Y2 JPH044663 Y2 JP H044663Y2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- container
- heater
- water
- water supply
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000009835 boiling Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Thermally Insulated Containers For Foods (AREA)
- Cookers (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は一般家庭において、湯沸し、保温に用
いる給湯器の改良に関するもので、特にヒーター
を容器内底部に装置するものの改良に関するもの
である。[Detailed Description of the Invention] Industrial Field of Application The present invention relates to improvements in water heaters used in general households for heating and keeping water warm, and particularly relates to improvements in water heaters in which a heater is installed at the bottom of the container.
従来の技術
従来、この種の給湯器でヒーターを容器の内底
部に装着して湯水を直接加熱するものがある。し
かし、ヒーターを容器の内底部に備えて容器内の
湯を容器外へ導く給湯管の下端が水没している場
合、湯沸し時、特に沸騰時においてはヒーター部
分で発生した気泡が、給湯管内の湯を押し上げて
器体の外部に湯が出たり、蒸気が出ることがあ
る。この対策として、実開昭61−14933号公報
(電気ポツト)では給湯管の下端の通水抵抗を増
加させるように形状変更している。BACKGROUND ART Conventionally, some water heaters of this kind directly heat hot water by attaching a heater to the inner bottom of a container. However, if the heater is installed at the inner bottom of the container and the lower end of the water supply pipe that guides the hot water inside the container to the outside of the container is submerged in water, air bubbles generated in the heater part will flow inside the water supply pipe when boiling water, especially during boiling. When the hot water is pushed up, hot water or steam may come out of the vessel. As a countermeasure to this problem, Japanese Utility Model Application Publication No. 14933/1983 (Electric pot) changes the shape of the lower end of the hot water supply pipe to increase water flow resistance.
考案が解決しようとする問題点
従来、例えば実開昭61−14933号公報では、給
湯管内に侵入する気泡の対策として給湯管の下端
形状を数種類提案しているが、この形状において
も給湯管の下端がヒーターの直上に付設される
と、沸騰時においては湯の吐出が完全には防止で
きない。又湯の入る部分の下端の通水抵抗を増加
させるので、出湯時の抵抗も大きくなり出湯性能
が低下する。Problems to be solved by the invention Previously, for example, in Japanese Utility Model Application Publication No. 14933/1983, several types of lower end shapes of hot water supply pipes were proposed as a countermeasure against air bubbles entering the hot water supply pipes. If the lower end is attached directly above the heater, the discharge of hot water during boiling cannot be completely prevented. In addition, since the water flow resistance at the lower end of the part where hot water enters is increased, the resistance when hot water is tapped also increases and the hot water pouring performance deteriorates.
問題点を解決するための手段
本考案は上記欠点を除くためになされたもので
あり、容器内に付設された給湯管の下端をヒータ
ーを保持している非加熱部の直上に配し、沸騰時
においても給湯管内に気泡が侵入しない構造とし
た。Means for Solving the Problems The present invention was made to eliminate the above-mentioned drawbacks. The structure has been designed to prevent air bubbles from entering the hot water supply pipes even when the water supply pipes are in use.
作 用
ヒーターの発熱により湯水は自然対流を起す。
この流れはヒーターの発熱部分直上から上昇し、
非加熱部分又は他の周辺へ下降する。この上昇の
流れの中に気泡があるが、下降の流れの中には少
ない。したがつて沸騰時において給湯管内に気泡
が入ることはなく、湯の自然吐出、蒸気の噴出も
ない。Function The heat generated by the heater causes natural convection in the hot water.
This flow rises from just above the heat generating part of the heater,
Descend to unheated parts or other surroundings. There are bubbles in this upward flow, but fewer in the downward flow. Therefore, no air bubbles enter the hot water supply pipe during boiling, and there is no natural discharge of hot water or jetting out of steam.
実施例
以下本考案の一実施例を図面を用いて説明す
る。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
図において、1は湯水が入る容器であり、2は
容器の底部に装着された発熱体で、ヒーター10
とこれを保持する後記の非加熱部11とからな
る。3は容器1の口部4から湯中の発熱体2近傍
まで付設された給湯管である。給湯管3の下端5
は発熱体2の非加熱部11直上に付設されてお
り、下端形状は管をカツトしたのみの単純形状で
ある。給湯管3の上端は出湯口6に接続されてい
る。7は容器の上部に付設された開閉自在なふた
であり、ふた7の内部には、容器1内の湯を出湯
させる際に、容器1内に空圧を加えるためのベロ
ーズ式のエアポンプ8とエアポンプ8を駆動させ
るためのプツシユバン9等が組込まれている。1
0は発熱体2の内部に装着されている加熱部すな
わちヒーターで、ステンレス容器からなる非加熱
部11で保持されている。非加熱部11の内部に
は湯温検知用サーモ12や水位ゲージ13用接続
管14等が装着されている。 In the figure, 1 is a container containing hot water, 2 is a heating element attached to the bottom of the container, and a heater 10
and a non-heating section 11 (described later) that holds the same. 3 is a hot water supply pipe attached from the mouth 4 of the container 1 to the vicinity of the heating element 2 in the hot water. Lower end 5 of hot water pipe 3
is attached directly above the non-heating part 11 of the heating element 2, and its lower end has a simple shape of a cut pipe. The upper end of the hot water supply pipe 3 is connected to a hot water outlet 6. Reference numeral 7 denotes a lid that can be opened and closed at the top of the container, and inside the lid 7 there is a bellows-type air pump 8 for applying air pressure to the inside of the container 1 when dispensing hot water from the container 1. A pusher van 9 and the like for driving the air pump 8 are incorporated. 1
0 is a heating section, ie, a heater, installed inside the heating element 2, and is held in a non-heating section 11 made of a stainless steel container. Inside the non-heating section 11, a thermometer 12 for detecting hot water temperature, a connecting pipe 14 for a water level gauge 13, etc. are installed.
次に上記構成からなる本実施例の作用効果につ
いて説明する。 Next, the effects of this embodiment having the above configuration will be explained.
容器1内に水を入れて、発熱体2に通電すると
ヒーター10は発熱する。これにより発熱体2の
高温部から水へ熱伝達が行なわれる。受熱した水
はこれに接する他の部分へ熱を伝導すると共に体
膨張がなされるので比重が軽くなり上昇する。こ
れにより低温の比重の重い水が発熱体2上へ入つ
てくる。、また水は加熱されることによつて内部
に溶けていた空気が分離して気泡となつて上昇し
てゆく。この作用、すなわち自然対流を繰返しな
がら温度上昇をして高温の湯となり、更にヒータ
ーで加熱されることによつて沸騰を起す。すなわ
ちヒーター10直上では対流による上昇の流れが
あり、この中には湯から分離した空気の流れや沸
騰時の気泡の流れがある。しかし発熱体2の直上
以外の部分あるいは発熱体2の直上においても、
ヒーター10以外の非加熱部11直上には低温水
が発熱体2に向つて下降する流れがある。よつて
この部分に給湯管3の下端5を付設する実施例に
おいては、湯沸し中および沸騰時においても給湯
管3内に気泡が入ることはなく、出湯口6からの
湯の吐出や蒸気の噴出の恐れはなく、かつエアポ
ンプ8を駆動して湯を出湯する際にも、給湯管3
の下端5の通水抵抗を大きくしていない構造であ
るので、スムーズな出湯が得られるものである。 When water is poured into the container 1 and electricity is applied to the heating element 2, the heater 10 generates heat. Thereby, heat is transferred from the high temperature portion of the heating element 2 to the water. The water that has received heat conducts heat to other parts that come into contact with it and expands, so its specific gravity becomes lighter and rises. As a result, low temperature water with a heavy specific gravity enters onto the heating element 2. Also, as water is heated, the air dissolved inside it separates and rises in the form of bubbles. As this action, that is, natural convection, is repeated, the temperature rises and becomes high-temperature water, which is further heated by a heater to cause boiling. That is, there is an upward flow due to convection just above the heater 10, and this includes a flow of air separated from hot water and a flow of bubbles during boiling. However, even in parts other than directly above the heating element 2 or directly above the heating element 2,
Immediately above the non-heating section 11 other than the heater 10, there is a flow of low-temperature water descending toward the heating element 2. Therefore, in the embodiment in which the lower end 5 of the hot water supply pipe 3 is attached to this part, air bubbles do not enter the hot water supply pipe 3 even during and during boiling, and hot water is discharged from the hot water outlet 6 and steam is ejected. There is no fear of
Since the structure does not increase water flow resistance at the lower end 5, smooth hot water can be obtained.
考案の効果
以上、本考案によれば、給湯管の下端を非加熱
部の直上に設け、湯沸し時および沸騰時において
給湯管の下端を下降流の流れの中に位置させるよ
うにしているので、給湯管下端の通水抵抗を増加
させる必要がなく、給湯管への気泡の侵入を防止
することができる。Effects of the invention As described above, according to the invention, the lower end of the water supply pipe is provided directly above the non-heating part, and the lower end of the water supply pipe is positioned in the downward flow during boiling and boiling. There is no need to increase water flow resistance at the lower end of the hot water supply pipe, and it is possible to prevent air bubbles from entering the hot water supply pipe.
図は本考案の一実施例を示した構造概略図であ
る。
1……容器、2……発熱体、3……給湯管、5
……給湯管の下端、10……ヒーター、11……
非加熱部。
The figure is a schematic structural diagram showing an embodiment of the present invention. 1... Container, 2... Heating element, 3... Hot water pipe, 5
... lower end of hot water pipe, 10 ... heater, 11 ...
Non-heated part.
Claims (1)
1の内底部に備え、外部から空圧を加えて、容器
1内に付設された給湯管3を介して、湯水を外部
に吐出するものにおいて、湯水内に没する給湯管
3の下端5を非加熱部11直上に設けたことを特
徴とする給湯器。 A heater 10 held by a non-heating part 11 is provided at the inner bottom of the container 1, and hot water is discharged to the outside via a hot water pipe 3 attached to the container 1 by applying air pressure from the outside. A water heater characterized in that a lower end 5 of a hot water pipe 3 that is submerged in hot water is provided directly above a non-heating part 11.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10245186U JPH044663Y2 (en) | 1986-07-03 | 1986-07-03 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10245186U JPH044663Y2 (en) | 1986-07-03 | 1986-07-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS638843U JPS638843U (en) | 1988-01-21 |
JPH044663Y2 true JPH044663Y2 (en) | 1992-02-12 |
Family
ID=30974106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10245186U Expired JPH044663Y2 (en) | 1986-07-03 | 1986-07-03 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH044663Y2 (en) |
-
1986
- 1986-07-03 JP JP10245186U patent/JPH044663Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS638843U (en) | 1988-01-21 |
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