JPH0638000B2 - Electric water heater - Google Patents
Electric water heaterInfo
- Publication number
- JPH0638000B2 JPH0638000B2 JP33164288A JP33164288A JPH0638000B2 JP H0638000 B2 JPH0638000 B2 JP H0638000B2 JP 33164288 A JP33164288 A JP 33164288A JP 33164288 A JP33164288 A JP 33164288A JP H0638000 B2 JPH0638000 B2 JP H0638000B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- storage tank
- heat
- water
- heater
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 148
- 238000005338 heat storage Methods 0.000 claims description 49
- 239000008236 heating water Substances 0.000 claims 1
- 239000008399 tap water Substances 0.000 description 9
- 235000020679 tap water Nutrition 0.000 description 9
- 230000007423 decrease Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、貯湯槽内に蓄熱体を入れて貯湯槽の保有熱
量を増加させた電気温水器に関する。Description: TECHNICAL FIELD The present invention relates to an electric water heater in which a heat storage body is placed in a hot water storage tank to increase the amount of heat held in the hot water storage tank.
（従来の技術） 従来から、深夜電力を利用して水を加温するとともにそ
の温水を貯えておく電気温水器が知られている。(Prior Art) Conventionally, an electric water heater that heats water by using electric power at midnight and stores the hot water has been known.
この電気温水器は、第４図に示すように、貯湯槽１内に
減圧した水道水を供給する減圧逆止弁２と、例えば、夜
２４時から翌朝８時までの間通電して貯湯槽内の水を加
温するヒータ３と、貯湯槽１内の温水を給湯する給湯管
４等とを備えている。As shown in FIG. 4, this electric water heater includes a decompression check valve 2 for supplying decompressed tap water into a hot water storage tank 1 and, for example, energizing from 24 pm to 8 am the following morning. A heater 3 for heating the water inside, a hot water supply pipe 4 for supplying the hot water in the hot water storage tank 1, and the like are provided.
（発明が解決しようとする課題） ところで、近年、家庭用風呂の普及にともない温水の使
用量が増加してきており、特に、冬期においてその使用
量が著しく増加する。このため、小さな貯湯槽では温水
が不足することとなり、この不足が生じることのないよ
うに貯湯槽の大型化が図られている。(Problems to be Solved by the Invention) In recent years, the amount of hot water used has increased with the spread of domestic baths, and particularly in winter, the amount of hot water used remarkably increases. For this reason, a small hot water storage tank runs short of hot water, and the hot water storage tank is made larger so as to prevent the shortage.
しかしながら、高層住宅等ではその貯湯槽の設置スペー
スを確保することが難しいという問題があった。However, there is a problem that it is difficult to secure a space for installing the hot water storage tank in a high-rise house or the like.
（目的） この発明は、上記問題点に鑑みてなされたもので、その
目的とするところは、得られる温水の量を減らすことな
く貯湯槽の容積を小さくすることのできる電気温水器を
提供することにある。(Object) The present invention has been made in view of the above problems, and an object of the present invention is to provide an electric water heater capable of reducing the volume of a hot water storage tank without reducing the amount of hot water obtained. Especially.
（課題を解決するための手段） この発明は、上記目的を達成するため、電気温水器の貯
湯槽内に多数の蓄熱体を入れ、その貯湯槽の上部と下部
とに連通孔を設け、この連通孔を外部から連通管で連通
し、この連通管を通る水を加熱するヒータを設け、蓄熱
時に前記ヒータを通電させて連通管を通る水を加熱して
前記蓄熱体に蓄熱していく電気温水器において、 前記貯湯槽内に水を給水する給水管を蓄湯槽の下部に設
け、 前記貯湯槽内に貯えられた温水を他へ給湯する給湯管を
貯湯槽の上部に設け、 蓄熱時に前記連通管内の水を下から上へ流し、給湯時に
連通管内の水を上から下へ流していくポンプを設けたも
のである。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention puts a large number of heat storage bodies in a hot water storage tank of an electric water heater, and provides communication holes in an upper portion and a lower portion of the hot water storage tank. Electricity for communicating the communication hole from the outside with a communication pipe and providing a heater for heating the water passing through the communication pipe, energizing the heater during heat storage to heat the water passing through the communication pipe and store the heat in the heat storage body. In the water heater, a water supply pipe for supplying water to the hot water storage tank is provided at a lower portion of the hot water storage tank, and a hot water supply pipe for supplying hot water stored in the hot water storage tank to another is provided at an upper portion of the hot water storage tank. A pump is provided which causes the water in the communication pipe to flow from the bottom to the top and the water in the communication pipe to flow from the top to the bottom during hot water supply.
（作用） この発明は、上記構成であるから、蓄熱時にはポンプが
連通管内の水を下から上へ流していくので、貯湯槽内に
はヒータで加熱された温水が上から下へ循環する。この
ため、貯湯槽内の上層部の蓄熱体から下層部の蓄熱体へ
と加熱されていき、最終的に上層部の蓄熱体と下層部の
蓄熱体の温度が均一となる。(Operation) Since the present invention has the above-described configuration, the pump causes the water in the communication pipe to flow from the bottom to the top during heat storage, so that the hot water heated by the heater circulates from the top to the bottom in the hot water storage tank. Therefore, the heat storage body in the upper layer portion in the hot water storage tank is heated to the heat storage body in the lower layer portion, and finally the temperature of the heat storage body in the upper layer portion becomes uniform with that in the lower layer portion.
給湯時には、貯湯槽の上部に設けた給湯管から給湯さ
れ、貯湯槽の下部に設けた給水管から給水されていくと
ともに、ポンプが連通管内の水を上から下へ流していく
ので、貯湯槽内の温水は下から上へと循環しながら貯湯
槽の上部の温水が給湯されていく。また、貯湯槽内に給
水された水は下から上へと循環していくので、貯湯槽内
の蓄熱体は下層部から上層部へと温度が順次低下してい
く状態となる。At the time of hot water supply, hot water is supplied from the hot water supply pipe provided at the upper part of the hot water storage tank, and water is supplied from the water supply pipe provided at the lower part of the hot water storage tank, and the pump flows the water in the communication pipe from top to bottom. The hot water inside circulates from the bottom to the top, and the hot water above the hot water tank is supplied. Further, since the water supplied to the hot water storage tank circulates from the bottom to the top, the temperature of the heat storage body in the hot water storage tank gradually decreases from the lower layer portion to the upper layer portion.
すなわち、給湯していくにしたがって下層部の蓄熱体か
ら温度が低下していくが、貯湯槽の上部から給湯してい
るので、上層部の蓄熱体の温度が低下するまで高温の温
水を給湯することができる。つまり、高温の温水を多量
に給湯することができる。That is, as the hot water is supplied, the temperature of the lower layer heat storage body decreases, but since the hot water is supplied from the upper part of the hot water storage tank, hot water with high temperature is supplied until the temperature of the upper layer heat storage body decreases. be able to. That is, a large amount of high-temperature hot water can be supplied.
また、蓄熱時には上層部の蓄熱体から下層部への蓄熱体
へと温度が上昇するとともに蓄熱していくので、冬期や
停電などによりヒータの通電時間が所定時間以下となっ
て下層部の蓄熱体が十分に蓄熱できず低温の状態であっ
ても、上層部の蓄熱体が十分に蓄熱されて高温となる。
このため、貯湯槽の上部の温水が給湯されていくことに
より高温の温水を給湯することができる。In addition, during heat storage, the temperature rises from the heat storage body in the upper layer to the heat storage body in the lower layer, and heat is stored, so that the energization time of the heater is less than a predetermined time due to winter or power failure, etc. However, even in a low temperature state where heat cannot be stored sufficiently, the heat storage body in the upper layer is sufficiently stored and becomes high temperature.
Therefore, high-temperature hot water can be supplied by supplying hot water to the upper part of the hot water storage tank.
（実施例） 以下、この発明の実施例を図面に基づいて説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第１図はこの発明に係わる電気温水器の構成を示した断
面図であり、図において、１１は水道水を所定圧に減圧
して貯湯槽１２の下部から水道水を供給する減圧逆止
弁、１３は貯湯槽１２の温水を給湯するための給湯管、
１４は貯湯槽１２内の圧力を所定圧以下にしておく安全
弁である。FIG. 1 is a cross-sectional view showing the structure of an electric water heater according to the present invention. In the figure, 11 is a pressure reducing check valve for reducing tap water to a predetermined pressure and supplying tap water from a lower portion of a hot water tank 12. , 13 are hot water supply pipes for supplying hot water from the hot water storage tank 12,
Reference numeral 14 is a safety valve for keeping the pressure in the hot water storage tank 12 at a predetermined pressure or less.
貯湯槽１２内にはその上部と下部とに網部材Ｍ1，Ｍ2が
設置され、その網部材Ｍ1，Ｍ2の間にはテニスボールサ
イズの複数の球状蓄熱体１６が詰められている。また、
貯湯槽１２には網部材Ｍ1の下側と網部材Ｍ2の上側との
位置に連通孔１７，１８が設けられており、この連通孔
１７，１８は外部の連通管１９によって連通されてい
る。そして、この連通管１９には水道水を加熱するヒー
タＨとこの連通管１９を介して水を循環させるポンプＰ
とが設けられている。Net members M 1 and M 2 are installed in the upper and lower parts of the hot water storage tank 12, and a plurality of tennis ball-sized spherical heat storage bodies 16 are packed between the net members M 1 and M 2 . . Also,
The hot water storage tank 12 is provided with communication holes 17 and 18 at positions below the mesh member M 1 and above the mesh member M 2 , and these communication holes 17 and 18 are communicated by an external communication pipe 19. There is. A heater H for heating tap water and a pump P for circulating water through the communication pipe 19 are provided in the communication pipe 19.
And are provided.
このポンプＰは、矢印Ａ方向あるいはＢ本体に水を循環
させるものであるが、その循環方向の切り換えは、例え
ば直流モータの回転方向によって切り換えたり、あるい
は、ポンプを２つ使用することにより行うものである。
Ｓは温度センサ、Ｑは止水弁である。The pump P circulates water in the direction of arrow A or in the body B of the pump. The switching of the circulating direction is performed by, for example, switching depending on the rotation direction of the DC motor, or by using two pumps. Is.
S is a temperature sensor and Q is a water shutoff valve.
上記球状蓄熱体１６は、ポリプロピレンからなる厚さ２
mmの球状の密閉ポリマ容器の中に、高い融解熱を有する
例えば酢酸ソーダあるいは苛性ソーダを充填して構成し
たものである。これは、第２図の図表１に示すように、
例えば蓄熱温度６４度のとき潜熱量58500Kcal/m3，蓄熱
量67400Kcal/m3を有する。The spherical heat storage element 16 has a thickness of 2 made of polypropylene.
A spherical closed polymer container of mm is filled with, for example, sodium acetate or caustic soda having a high heat of fusion. This is as shown in Figure 1 of Figure 2.
For example, when the heat storage temperature is 64 degrees, it has a latent heat amount of 58500 Kcal / m 3 and a heat storage amount of 67400 Kcal / m 3 .
上記ヒータＨは、通常の電気温水器と同様に、夜２４時
から翌朝８時までの時間帯だけ通電されて水を加熱する
ものである。この加熱時にポンプＰを作動させて、加熱
された温水を矢印Ａで示す方向、すなわち貯湯槽１２の
上部から下部に向けて循環させるものであり、この循環
により温水が球状蓄熱体１６の表面を流れることとな
る。この流れにより温水の熱が球状蓄熱体１６に伝わり
該球状蓄熱体１６に熱が蓄熱される。Like the normal electric water heater, the heater H is energized to heat water only during a time period from 24:00 to 8:00 the next morning. During this heating, the pump P is operated to circulate the heated hot water in the direction shown by the arrow A, that is, from the upper part of the hot water storage tank 12 to the lower part thereof. It will flow. Due to this flow, the heat of the hot water is transmitted to the spherical heat storage body 16 and the heat is stored in the spherical heat storage body 16.
この蓄熱時には、ヒータで加熱された温水が上から下へ
循環する。このため、貯湯槽内の上層部の蓄熱体から下
層部の蓄熱体へと加熱されていき、最終的に上層部の蓄
熱体と下層部の蓄熱体の温度が均一となる。During this heat storage, hot water heated by the heater circulates from the top to the bottom. Therefore, the heat storage body in the upper layer portion in the hot water storage tank is heated to the heat storage body in the lower layer portion, and finally the temperature of the heat storage body in the upper layer portion becomes uniform with that in the lower layer portion.
給湯の際には、温水が給湯管１３から給湯されると、そ
の給湯された量だけ水道水が減圧逆止弁１１によって貯
湯槽１２内に供給される。供給された水道水のため貯湯
槽１２内の水温は低下するので、ポンプＰによって温水
を矢印Ｂ方向、すなわち貯湯槽１２の下部から上部に向
けて循環させる。すると、給水された水道水も矢印Ｂ方
向に循環されることとなり、この循環により水道水が球
状蓄熱体１６の表面を流れて球状蓄熱体１６から熱を取
り出して加温されることとなる。When hot water is supplied from the hot water supply pipe 13 at the time of hot water supply, tap water is supplied to the hot water storage tank 12 by the pressure reducing check valve 11 by the amount of the hot water supplied. Since the supplied tap water lowers the water temperature in the hot water storage tank 12, the pump P circulates the hot water in the direction of arrow B, that is, from the lower part of the hot water storage tank 12 to the upper part. Then, the supplied tap water is also circulated in the direction of the arrow B, and the tap water flows on the surface of the spherical heat storage body 16 by this circulation, takes out heat from the spherical heat storage body 16 and is heated.
ポンプＰによる温水の循環は、貯湯槽１２の外側に設置
した温度センサＳが温水温度をキャッチして所定の設定
温度に達すると停止される。したがって、温度センサＳ
の設置位置を適切に決定することにより温度が充分に高
くなった水道水のみを給湯することができる。The circulation of hot water by the pump P is stopped when the temperature sensor S installed outside the hot water storage tank 12 catches the hot water temperature and reaches a predetermined set temperature. Therefore, the temperature sensor S
By appropriately deciding the installation position of, it is possible to supply only tap water having a sufficiently high temperature.
このことより、いつでも必用に応じて必用量の温水を得
ることができる。As a result, the required amount of hot water can be obtained whenever necessary.
ところで、一度に多量の湯が給湯された場合、貯湯槽１
２内に給水された水は下から上へと循環していくので、
貯湯槽内の蓄熱体は下層部から上層部へと温度が順次低
下していく状態となる。By the way, when a large amount of hot water is supplied at one time, the hot water storage tank 1
The water supplied in 2 circulates from bottom to top,
The temperature of the heat storage body in the hot water storage tank gradually decreases from the lower layer to the upper layer.
すなわち、給湯していくにしたがって下層部の蓄熱体１
６から温度が低下していくが、貯湯槽１２の上部から給
湯しているので、上層部の蓄熱体１６の温度が低下する
まで高温の温水を給湯することができる。つまり、高温
の温水を多量に給湯することができる。That is, as the hot water is supplied, the lower-layer heat storage body 1
Although the temperature decreases from 6, the hot water is supplied from the upper part of the hot water storage tank 12, and therefore hot hot water can be supplied until the temperature of the heat storage body 16 in the upper layer decreases. That is, a large amount of high-temperature hot water can be supplied.
また、蓄熱時には上層部の蓄熱体１６から下層部への蓄
熱体１６へと温度が上昇するとともに蓄熱していくの
で、冬期や停電などによりヒータＨの通電時間が所定時
間以下となって下層部の蓄熱体１６が十分に蓄熱できず
低温の状態であっても、上層部の蓄熱体１６が十分に蓄
熱されて高温となる。このため、貯湯槽１２の上部の温
水が給湯されていくことにより高温の温水を給湯するこ
とができる。In addition, during heat storage, the temperature rises from the heat storage body 16 in the upper layer portion to the heat storage body 16 in the lower layer portion, and heat is stored, so that the energizing time of the heater H becomes less than a predetermined time due to winter or power failure, and the lower layer portion is stored. Even if the heat storage body 16 of No. 1 cannot store heat sufficiently and is in a low temperature state, the heat storage body 16 of the upper layer portion is sufficiently stored with heat and becomes high temperature. Therefore, high-temperature hot water can be supplied by the hot water being supplied to the upper portion of the hot water storage tank 12.
図表２は、球状蓄熱体１６の総容積が296リットルの電
気温水器の熱量と、温水器容量370リットルの従来の電
気温水器の熱量との比較を示したものである。この表に
示すように、実施例の電気温水器の保有熱量は蓄熱体１
６が潜熱17316Kcalを有するので22496Kcalとなるのに対
して従来の電気温水器の保有熱量は顕熱のみの11100Kca
lである。すなわち、実施例の電気温水器の保有熱量は
従来の電気温水器の２倍である。したがって、同じ量の
温水を得るには、従来の貯湯槽の約1/2の容積で良いこ
ととなり、貯湯槽の設置スペースを小さくすることがで
きる。Chart 2 shows a comparison between the heat quantity of an electric water heater having a total volume of 296 liters of spherical heat storage body 16 and the heat quantity of a conventional electric water heater having a water heater capacity of 370 liters. As shown in this table, the amount of heat possessed by the electric water heater of the embodiment is 1
Since 6 has latent heat of 17316 Kcal, it becomes 22496 Kcal, whereas the conventional electric water heater has 11100 Kca of sensible heat only.
is l. That is, the amount of heat possessed by the electric water heater of the embodiment is twice that of the conventional electric water heater. Therefore, in order to obtain the same amount of hot water, the volume of the conventional hot water storage tank is about 1/2, and the installation space of the hot water storage tank can be reduced.
なお、上記実施例では、加温時には矢印Ａ方向に循環さ
せているが、この逆であってもよい。In the above embodiment, the circulation is performed in the direction of arrow A at the time of heating, but the opposite may be true.
（効果） この発明は、以上説明したように、貯湯槽の上部から給
湯しているので、上層部の蓄熱体の温度が低下するまで
高温の温水を給湯することができ、この結果、高温の温
水を多量に給湯することができる。(Effect) As described above, according to the present invention, since hot water is supplied from the upper part of the hot water storage tank, it is possible to supply high-temperature hot water until the temperature of the heat storage body in the upper layer is lowered. A large amount of hot water can be supplied.
また、蓄熱時には上層部の蓄熱体から下層部への蓄熱体
へと温度が上昇するとともに蓄熱していくので、冬期や
停電などによりヒータの通電時間が所定時間以下となっ
て下層部の蓄熱体が十分に蓄熱できず低温の状態であっ
ても、上層部の蓄熱体が十分に蓄熱されて高温となる。
このため、貯湯槽の上部の温水が給湯されていくことに
より高温の温水を給湯することができる。In addition, during heat storage, the temperature rises from the heat storage body in the upper layer to the heat storage body in the lower layer, and heat is stored, so that the energization time of the heater is less than a predetermined time due to winter or power failure, etc. However, even in a low temperature state where heat cannot be stored sufficiently, the heat storage body in the upper layer is sufficiently stored and becomes high temperature.
Therefore, high-temperature hot water can be supplied by supplying hot water to the upper part of the hot water storage tank.
また、蓄熱体に熱を蓄熱していくものであるから貯湯槽
内の蓄熱量を増加させることができ、これにより貯湯槽
の容積を小さくすることができる。Further, since the heat is stored in the heat storage body, the amount of heat stored in the hot water storage tank can be increased, and thus the volume of the hot water storage tank can be reduced.
第１図はこの発明に係る電気温水器の構成を示した断面
図、第２図は蓄熱温度と蓄熱量等との関係を示した図
表、第３図は実施例の電気温水器の保有熱量と従来の電
気温水器の保有熱量との比較を示した図表、第４図は従
来の電気温水器の概略構成を示した説明図である。 １２…貯湯槽 １６…球状蓄熱体 １７，１８…連通孔 １９…連通管 Ｈ…ヒータ Ｐ…ポンプFIG. 1 is a cross-sectional view showing the configuration of the electric water heater according to the present invention, FIG. 2 is a table showing the relationship between heat storage temperature and heat storage amount, and FIG. 3 is a heat quantity possessed by the electric water heater of the embodiment. And FIG. 4 is a diagram showing a comparison between the amount of heat held by the conventional electric water heater, and FIG. 4 is an explanatory view showing a schematic configuration of the conventional electric water heater. 12 ... Hot water storage tank 16 ... Spherical heat storage body 17, 18 ... Communication hole 19 ... Communication pipe H ... Heater P ... Pump
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中西 美一 香川県高松市屋島西町1528 (56)参考文献 特開 昭62−233643（ＪＰ，Ａ) 特開 昭60−196547（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Miichi Nakanishi 1528 Yashimanishimachi, Takamatsu City, Kagawa Prefecture (56) References JP 62-233643 (JP, A) JP 60-196547 (JP, A)
Claims (1)
れ、その貯湯槽の上部と下部とに連通孔を設け、この連
通孔を外部から連通管で連通し、この連通管を通る水を
加熱するヒータを設け、蓄熱時に前記ヒータを通電させ
て連通管を通る水を加熱して前記蓄熱体に蓄熱していく
電気温水器において、 前記貯湯槽内に水を給水する給水管を貯湯槽の下部に設
け、 前記貯湯槽内に貯えられた温水を他へ給湯する給湯管を
貯湯槽の上部に設け、 蓄熱時に前記連通管内の水を下から上へ流し、給湯時に
連通管内の水を上から下へ流していくポンプを設けたこ
とを特徴とする電気温水器。1. A large number of heat storage bodies are placed in a hot water storage tank of an electric water heater, and communication holes are provided in an upper portion and a lower portion of the hot water storage tank. The communication holes are communicated with a communication pipe from the outside. An electric water heater that is provided with a heater for heating water passing therethrough, energizes the heater at the time of heat storage to heat the water passing through the communication pipe to store heat in the heat storage body, wherein a water supply pipe for supplying water to the hot water storage tank Is provided in the lower part of the hot water storage tank, and a hot water supply pipe for supplying the hot water stored in the hot water storage tank to another is provided in the upper part of the hot water storage tank, and the water in the communication pipe flows from bottom to top during heat storage An electric water heater equipped with a pump that flows the water from above to below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33164288A JPH0638000B2 (en) | 1988-12-28 | 1988-12-28 | Electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33164288A JPH0638000B2 (en) | 1988-12-28 | 1988-12-28 | Electric water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02176360A JPH02176360A (en) | 1990-07-09 |
| JPH0638000B2 true JPH0638000B2 (en) | 1994-05-18 |
Family
ID=18245942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33164288A Expired - Lifetime JPH0638000B2 (en) | 1988-12-28 | 1988-12-28 | Electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638000B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006292206A (en) * | 2005-04-07 | 2006-10-26 | Matsushita Electric Ind Co Ltd | Heat storage device |
| JP4696882B2 (en) * | 2005-12-05 | 2011-06-08 | パナソニック株式会社 | Heat storage device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60196547A (en) * | 1984-03-19 | 1985-10-05 | Mitsubishi Corp | Electric hot water boiler |
-
1988
- 1988-12-28 JP JP33164288A patent/JPH0638000B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02176360A (en) | 1990-07-09 |
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