JP2638638B2 - Hot water storage type electric water heater - Google Patents

Hot water storage type electric water heater

Info

Publication number
JP2638638B2
JP2638638B2 JP9187689A JP9187689A JP2638638B2 JP 2638638 B2 JP2638638 B2 JP 2638638B2 JP 9187689 A JP9187689 A JP 9187689A JP 9187689 A JP9187689 A JP 9187689A JP 2638638 B2 JP2638638 B2 JP 2638638B2
Authority
JP
Japan
Prior art keywords
hot water
water storage
water supply
storage tank
supply pipe
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 - Fee Related
Application number
JP9187689A
Other languages
Japanese (ja)
Other versions
JPH02279950A (en
Inventor
勝利 力久
長男 田中
純一 西村
兼英 肝付
則義 中山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KYUSHU DENRYOKU KK
KYUSHU HENATSUKI KK
Original Assignee
KYUSHU DENRYOKU KK
KYUSHU HENATSUKI KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KYUSHU DENRYOKU KK, KYUSHU HENATSUKI KK filed Critical KYUSHU DENRYOKU KK
Priority to JP9187689A priority Critical patent/JP2638638B2/en
Publication of JPH02279950A publication Critical patent/JPH02279950A/en
Application granted granted Critical
Publication of JP2638638B2 publication Critical patent/JP2638638B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14Direct injection into combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00Metals
    • F05C2201/02Light metals
    • F05C2201/021Aluminium

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] 本発明は、複数本の貯湯タンクを備えて狭い敷地に設
置することができる貯湯式電気温水器に関するものであ
る。
Description: TECHNICAL FIELD The present invention relates to a hot-water storage type electric water heater that includes a plurality of hot-water storage tanks and can be installed on a narrow site.

[従来の技術] 1本の貯湯タンクを用いて貯湯式電気温水器の容量を
大きくする場合には、貯湯タンクの直径寸法または高さ
寸法を大きくすることになる。しかしながら、このよう
にして貯湯タンクを大きくすると、幅方向寸法及び高さ
方向寸法が限られている場所には設置することができな
い。そこで実開昭63−196047号公報に示されるように、
貯湯タンクを複数本に分けて並設して、幅方向の寸法及
び高さ方向の寸法が短い場所でも設置が可能な比較的大
容量の電気温水器が提案された。該公報に示された電気
温水器では、一方の貯湯タンクの給湯口を他方の貯湯タ
ンクの給水口に連結管で接続して、各貯湯タンクを直列
に接続している。
[Prior Art] When the capacity of a hot water storage type electric water heater is increased by using one hot water storage tank, the diameter or height of the hot water storage tank is increased. However, if the hot water storage tank is made large in this way, it cannot be installed in a place where the width dimension and the height dimension are limited. Therefore, as shown in Japanese Utility Model Laid-Open No. 63-196047,
There has been proposed a relatively large-capacity electric water heater in which a plurality of hot water storage tanks are juxtaposed and can be installed even in a place where the width dimension and the height dimension are short. In the electric water heater disclosed in the publication, a hot water supply port of one hot water storage tank is connected to a water supply port of the other hot water storage tank by a connecting pipe, and the hot water storage tanks are connected in series.

[発明が解決しようとする課題] しかしながら複数本の貯湯タンクを連結管を用いて直
列に接続した場合、次のような問題が生ずる。
[Problems to be Solved by the Invention] However, when a plurality of hot water storage tanks are connected in series using a connecting pipe, the following problem occurs.

(a)貯湯タンクを直列に接続すると配管経路が長くな
り、しかも給水管と給湯管との間に、大径の貯湯タンク
と小径の連結管とが交互に配置される構成となるため、
給湯圧力が低下する問題が生ずる。
(A) When the hot water storage tanks are connected in series, the piping path becomes long, and the large-diameter hot water storage tank and the small-diameter connecting pipe are alternately arranged between the water supply pipe and the hot water supply pipe.
There is a problem that the hot water supply pressure is reduced.

(b)一方の貯湯タンクの給湯口の給水口とを連結する
連結管は、上方と下方にL字形の曲げ部を有しており、
上方の曲げ部と一方の貯湯タンクの給湯口との間に空気
が溜まると、この空気層によって水流が妨げられ、減圧
弁で減圧した水の圧力(0.6kg/cm2)では、給湯を行う
ことができなくなる問題がある。これを防ぐためには、
連結管の上方の曲げ部付近に空気抜き弁を設ければよい
が、この場合には部品点数が多くなる問題が生じる。
(B) The connecting pipe connecting the hot water supply port of one of the hot water storage tanks has an L-shaped bent portion at an upper portion and a lower portion,
Performing the air accumulates between the upper bent portion and the hot water supply port of one of the hot water storage tank, water flow is hindered by the air layer, the pressure of the water at reduced pressure at a pressure reducing valve (0.6kg / cm 2), a hot water supply There is a problem that can not be done. To prevent this,
An air vent valve may be provided near the bent portion above the connecting pipe, but in this case, there is a problem that the number of parts increases.

そこで実開昭51−163564号公報に示された貯湯式温水
器のように、複数本の貯湯タンクを並設して各貯湯タン
クを並列接続する技術が提案された。しかしながら従来
提案された技術では、単に各貯湯タンクを並列接続する
だけであり、並列接続した各貯湯タンクの湯を有効に利
用することについては、検討がなされていなかった。そ
のために給水管から各貯湯タンクを通って給湯管に至る
各流路の流体抵抗はバラバラになっていた。給水管から
貯湯タンクを通って給湯管に至る流路の流体抵抗が小さ
いことは、その流路の貯湯タンクから給湯管に供給され
る湯の量が多いことを意味する。逆に、その流路の流体
抵抗が大きいことは、その流路の貯湯タンクから給湯管
に供給される湯の量が小さいことを意味している。言い
換えると、給水管から貯湯タンクを通って給湯管に至る
流路の流体抵抗に逆比例の関係で、各貯湯タンクの湯が
利用されることになる。そのため流体抵抗の小さい流路
に位置する貯湯タンクから順番に湯が無くなってしま
い、湯が無くなった貯湯タンクからは、以後水が流れ出
し、湯が残っている貯湯タンクから出る湯に水が混合さ
れて給湯管に供給されるようになる。そのために各貯湯
タンクの湯を有効に利用することができない問題があっ
た。
Accordingly, a technique has been proposed in which a plurality of hot water storage tanks are arranged in parallel and the respective hot water storage tanks are connected in parallel, such as a hot water storage type water heater disclosed in Japanese Utility Model Laid-Open Publication No. 51-163564. However, in the conventionally proposed technology, the hot water storage tanks are simply connected in parallel, and there has been no study on the effective use of the hot water in the hot water storage tanks connected in parallel. For this reason, the fluid resistance of each flow path from the water supply pipe to the hot water supply pipe through each hot water storage tank was varied. The low fluid resistance in the flow path from the water supply pipe to the hot water supply pipe through the hot water storage tank means that the amount of hot water supplied from the hot water storage tank in the flow path to the hot water supply pipe is large. Conversely, a high fluid resistance in the flow channel means that the amount of hot water supplied to the hot water supply pipe from the hot water storage tank in the flow channel is small. In other words, the hot water in each hot water storage tank is used in inverse proportion to the fluid resistance of the flow path from the water supply pipe to the hot water supply pipe through the hot water storage tank. For this reason, hot water is lost in order from the hot water storage tank located in the flow path with a small fluid resistance, and thereafter water flows out of the hot water storage tank where the hot water has been lost, and water is mixed with the hot water discharged from the hot water storage tank where the hot water remains. To be supplied to the hot water supply pipe. Therefore, there was a problem that hot water in each hot water storage tank could not be used effectively.

本発明の目的は、複数本の貯湯タンクを並設した場合
にも、給湯圧力が低下することがなく、しかも各貯湯タ
ンクの湯を有効に利用することができ、更に1本の電気
ヒータを用いて複数本の貯湯タンク内を加熱することが
できて各貯湯タンクの利用率を高めることができる貯湯
式電気温水器を提供することにある。
The object of the present invention is that even when a plurality of hot water storage tanks are juxtaposed, the hot water supply pressure does not decrease, the hot water in each hot water storage tank can be used effectively, and one electric heater is used. An object of the present invention is to provide a hot water storage type electric water heater that can heat the inside of a plurality of hot water storage tanks by using the hot water storage tank and increase the utilization rate of each hot water storage tank.

本発明の他の目的は、複数本の貯湯タンクを並設した
場合でも、簡単に追焚きまたは瞬間湯沸かしが可能な電
気温水器を提供することにある。
Another object of the present invention is to provide an electric water heater that can easily re-fire or instantly heat water even when a plurality of hot water storage tanks are juxtaposed.

[課題を解決するための手段] 本発明は、下部に給水口を有し上部に給湯口を有する
貯湯タンクを複数本並設してなる貯湯式電気温水器にお
いて、上記目的を次の構成で達成する。
Means for Solving the Problems The present invention provides a hot water storage type electric water heater having a plurality of hot water storage tanks having a water supply port at a lower part and a water supply port at an upper part arranged side by side. To achieve.

本発明においては、複数本の貯湯タンクの給水口を第
1の連結管を介して相互に接続する。また複数本の貯湯
タンクの給湯口を第2の連結管を介して相互に接続す
る。そして第1の連結管には、給水管が接続され且つ第
2の連結管に給湯管が接続される。特に本発明において
は、給水管から各貯湯タンクを通って給湯管に至る各流
路の流体抵抗をほぼ等しくしている。更に、本発明で
は、電気ヒータを1本の貯湯タンク内に配置して、第1
及び第2の連結管の内径寸法を給水管または給湯管の内
径寸法より大きくして、第1及び第2の連結管を通して
温水を各貯湯タンク内に対流させることにより、各貯湯
タンク内を温水で満たすようにしている。
In the present invention, the water supply ports of the plurality of hot water storage tanks are connected to each other via the first connection pipe. The hot water supply ports of the plurality of hot water storage tanks are connected to each other via the second connecting pipe. Then, a water supply pipe is connected to the first connection pipe, and a hot water supply pipe is connected to the second connection pipe. In particular, in the present invention, the fluid resistance of each flow path from the water supply pipe to the hot water supply pipe through each hot water storage tank is made substantially equal. Furthermore, in the present invention, the electric heater is disposed in one hot water storage tank,
And making the inner diameter of the second connecting pipe larger than the inner diameter of the water supply pipe or the hot water supply pipe, and convection the hot water into each hot water storage tank through the first and second connecting pipes, thereby making the hot water storage tanks hot water. It is to be filled with.

また複数本の貯湯タンクのタンク本体を第3の連結管
で相互に接続し、第3の連結管内を経由する上方対流路
内に補助電気ヒータを設けてもよい。
Further, the tank bodies of the plurality of hot water storage tanks may be connected to each other by a third connection pipe, and an auxiliary electric heater may be provided in an upper counter flow path passing through the third connection pipe.

[発明の作用] 複数本の貯湯タンクを第1及び第2の連結管を用いて
並列に接続すれば、複数本の貯湯タンクを直列に接続す
る場合に比べて、給湯水圧が低下することがなく、また
連結管を上方から下方に配管する必要がないため、連結
管中に空気が溜まって給湯が不可能になることがない。
特に本発明においては、給水管から各貯湯タンクを通っ
て給湯管に至る各流路の流体抵抗がほぼ等しくなってい
るため、複数本の貯湯タンクを並列に接続した場合で
も、各貯湯タンクからの給湯量をほぼ等しくすることが
でき、各貯湯タンク内の湯を有効に利用することができ
る。
[Operation of the Invention] When a plurality of hot water storage tanks are connected in parallel using the first and second connecting pipes, the hot water supply water pressure may be reduced as compared with a case where a plurality of hot water storage tanks are connected in series. In addition, since there is no need to pipe the connecting pipe downward from above, there is no possibility that air is accumulated in the connecting pipe and hot water supply becomes impossible.
In particular, in the present invention, since the fluid resistance of each flow path from the water supply pipe to the hot water supply pipe through each hot water storage tank is substantially equal, even when a plurality of hot water storage tanks are connected in parallel, Can be made substantially equal, and the hot water in each hot water storage tank can be used effectively.

電気ヒータを1本の貯湯タンク内に配置して、第1及
び第2の連結管を通して温水を各貯湯タンク内で対流さ
せるようにすれば、各貯湯タンク内を全て温水で満たす
ことができ、タンクの使用効率を高めることができる。
また定期点検が必要な電気ヒータが1本で済むため、点
検及び電気の配線が容易になる。また貯湯タンクの加工
費が安くなる上、電気ヒータにかかる費用が下がるた
め、温水器の価格を大幅に低減化させることができる。
By arranging the electric heater in one hot water storage tank and causing hot water to convect in each hot water storage tank through the first and second connecting pipes, it is possible to completely fill each hot water storage tank with hot water, The use efficiency of the tank can be improved.
In addition, since only one electric heater needs to be periodically inspected, inspection and electric wiring are facilitated. In addition, since the processing cost of the hot water storage tank is reduced and the cost of the electric heater is reduced, the price of the water heater can be significantly reduced.

更に、第3の連結管と補助電気ヒータとを用いて複数
本の貯湯タンクの上方に短い対流路を形成すれば、複数
本の貯湯タンクを並列に接続した場合でも、簡単に追焚
きまたは瞬間湯沸かしを行うことができる。
Furthermore, if a short counter flow path is formed above a plurality of hot water storage tanks using the third connecting pipe and the auxiliary electric heater, even when a plurality of hot water storage tanks are connected in parallel, additional reheating or instantaneous heating is possible. A water heater can be performed.

[実施例] 第1図は、本発明の一実施例の概略構成を示してい
る。同図において、11及び12は図示しない外装ケース内
に起立した状態で配置される円筒状の第1及び第2の貯
湯タンクであり、これらの貯湯タンク11及び12は下部に
給水口11a及び12aを、そして上部に給湯口11b及び12bを
それぞれ備えている。貯湯タンク11及び12の給水口11a
及び12aは、第1の連結管13により相互に接続されてお
り、また給湯口11b及び12bは第2の連結管14により相互
に接続されている。第1の貯湯タンク1側に位置する第
1の連結管3の端部には水道管等の給水管5が接続さ
れ、第2の貯湯タンク12側に位置する第2の連結管14の
端部には給湯管6が接続されている。貯湯タンク12の内
部の下方には、それぞれ電気ヒータ18が配設されてい
る。
Embodiment FIG. 1 shows a schematic configuration of an embodiment of the present invention. In the figure, reference numerals 11 and 12 denote cylindrical first and second hot water storage tanks arranged in an upright state in an outer case (not shown), and these hot water storage tanks 11 and 12 are provided with water supply ports 11a and 12a at a lower portion. And hot water supply ports 11b and 12b at the top. Water inlet 11a for hot water storage tanks 11 and 12
And 12a are connected to each other by a first connecting pipe 13, and hot water supply ports 11b and 12b are connected to each other by a second connecting pipe 14. A water supply pipe 5 such as a water pipe is connected to an end of the first connection pipe 3 located on the first hot water storage tank 1 side, and an end of a second connection pipe 14 located on the second hot water storage tank 12 side. A hot water supply pipe 6 is connected to the section. Electric heaters 18 are provided below the inside of the hot water storage tank 12, respectively.

上記実施例において、第1及び第2の貯湯タンク11及
び12は内径寸法及び高さ寸法が等しく、また第1及び第
2の連結管13及び14も内径寸法及び長さが等しい。従っ
て、給水管5の出口から貯湯タンク11と連結管14とを通
って給湯管6の入口に至るまでの流路Aの流体抵抗と、
給水管5の出口から連結管13と貯湯タンク12とを通って
給湯管6の入口に至るまでの流路Bの流体抵抗とは、略
等しくなっている。そのため2本の貯湯タンクを並列接
続した場合でも、各貯湯タンクからの給湯量は略等しく
なり、各貯湯タンクの温水を有効に利用することができ
る。
In the above embodiment, the first and second hot water storage tanks 11 and 12 have the same inner diameter and height, and the first and second connecting pipes 13 and 14 also have the same inner diameter and length. Accordingly, the fluid resistance of the flow path A from the outlet of the water supply pipe 5 to the inlet of the hot water supply pipe 6 through the hot water storage tank 11 and the connection pipe 14,
The fluid resistance of the flow path B from the outlet of the water supply pipe 5 to the inlet of the hot water supply pipe 6 through the connecting pipe 13 and the hot water storage tank 12 is substantially equal. Therefore, even when two hot water storage tanks are connected in parallel, the amount of hot water supplied from each hot water storage tank becomes substantially equal, and the hot water in each hot water storage tank can be used effectively.

なお本実施例においては、第1及び第2の連結管13及
び14の内径寸法を給水管5及び給湯管6の内径寸法より
も大きくしてある。具体的には、連結管の内径を給水管
の約2.5倍にしている。また連結管14と給湯管6のそれ
ぞれの内壁面の上部を一致させて(面一にして)、連結
管14と給湯管との間に空気溜まりが発生するのを防止し
ている。
In this embodiment, the inner diameters of the first and second connecting pipes 13 and 14 are larger than the inner diameters of the water supply pipe 5 and the hot water supply pipe 6. Specifically, the inside diameter of the connecting pipe is about 2.5 times that of the water supply pipe. In addition, the upper portions of the inner wall surfaces of the connecting pipe 14 and the hot water supply pipe 6 are made to coincide with each other (to be flush with each other), thereby preventing the formation of air pockets between the connecting pipe 14 and the hot water feeding pipe.

本実施例においては、深夜電力で電気ヒータ18を発熱
させて両貯湯タンク1及び2内の水を所定の温度まで加
熱する。給湯管6から温水を出すと、給湯した分だけ給
水管5から水が供給される。各貯湯タンク11及び12内に
それぞれ電気ヒータを配置して同時に通電して焚上げる
場合には、各貯湯タンクに配置した電気ヒータよりも下
の部分を温水にすることができない。そのため貯湯タン
クの利用率を100%とすることができない。また電気ヒ
ータを各貯湯タンク内に設ける場合には、貯湯タンクの
加工が面倒になる上、加工費用が高くなる問題がある。
また電気ヒータの数が増える程、保守が面倒になり、し
かも各貯湯タンクに設けた電気ヒータを点検するための
余分な点検スペースが必要になる。
In the present embodiment, the electric heater 18 is heated by midnight power to heat the water in both hot water storage tanks 1 and 2 to a predetermined temperature. When hot water is discharged from the hot water supply pipe 6, water is supplied from the water supply pipe 5 for the amount of hot water supplied. When an electric heater is arranged in each of the hot water storage tanks 11 and 12 and energized and heated at the same time, a portion below the electric heater arranged in each of the hot water storage tanks cannot be heated. Therefore, the utilization rate of the hot water storage tank cannot be 100%. In addition, when the electric heater is provided in each hot water storage tank, there is a problem that processing of the hot water storage tank becomes troublesome and processing cost increases.
Also, as the number of electric heaters increases, maintenance becomes more troublesome, and an extra inspection space for inspecting the electric heaters provided in each hot water storage tank is required.

これに対して本実施例では、電気ヒータ18に通電して
焚上げを行うと、加熱された水は破線矢印の経路で対流
を始める。その結果、第1の貯湯タンク11内の冷たい水
は、給水口11aから第1の連結管13を通って第2の貯湯
タンク12内へと流れ込み加熱される。本実施例によれ
ば、両貯湯タンク11及び12内全体を略均一な温度の温水
で満たすことができる。実験によると、給水水温が10℃
の時に、4.4kwの電気ヒータを深夜電力で約7時間通電
して加熱した場合に、第1の貯湯タンク11の給水口付近
の湯温と第2の貯湯タンク12の給湯口付近の湯温との温
度差は、3〜4℃程度であった。なお比較のために、第
1及び第2の連結管13及び14として、給水管5及び給湯
管6と内径寸法が同じ管を用い、上記と同じ実験を行っ
たところ、温度差は10〜15℃程度になった。この結果か
ら、両貯湯タンク間の対流を十分に行わせるためには、
連結管13及び14の内径寸法を可能な範囲で大きくするこ
とが好ましい。
On the other hand, in the present embodiment, when the electric heater 18 is energized to perform heating, the heated water starts convection along the path indicated by the dashed arrow. As a result, the cold water in the first hot water storage tank 11 flows from the water supply port 11a through the first connection pipe 13 into the second hot water storage tank 12, and is heated. According to the present embodiment, the entire inside of both hot water storage tanks 11 and 12 can be filled with warm water having a substantially uniform temperature. According to experiments, the feedwater temperature is 10 ℃
At this time, when the 4.4 kW electric heater is energized for about 7 hours with midnight power and heated, the hot water temperature near the water inlet of the first hot water storage tank 11 and the hot water temperature near the hot water inlet of the second hot water storage tank 12 Was about 3 to 4 ° C. For comparison, pipes having the same inner diameter as the water supply pipe 5 and the hot water supply pipe 6 were used as the first and second connection pipes 13 and 14, and the same experiment was performed. ℃. From this result, in order to make convection between both hot water storage tanks sufficient,
It is preferable to increase the inner diameter of the connecting tubes 13 and 14 as much as possible.

また電気ヒータを一方の貯湯タンク内にのみ設けた場
合には、電気ヒータの配線が簡単であり、また電気ヒー
タにかかる費用も安く抑えることができる。ちなみにワ
ット数が2倍になっても、電気ヒータの価格は2倍にな
ることはない。よって本実施例によれば、従来よりも電
気温水器の価格の低減化を図ることができる。
When the electric heater is provided only in one of the hot water storage tanks, the wiring of the electric heater is simple, and the cost for the electric heater can be reduced. By the way, even if the wattage doubles, the price of the electric heater does not double. Therefore, according to the present embodiment, it is possible to reduce the price of the electric water heater as compared with the related art.

第2図は、第1図の実施例の変形例を示している。本
実施例は、第1図の実施例の温水器に、追焚き機能と瞬
間湯沸かし機能とを追加したものである。本実施例で
は、第1の貯湯タンク21のタンク本体及び第2の貯湯タ
ンク2のタンク本体を第3の連結管20で連結している。
本実施例では、第3の連結管20の取付位置をタンク本体
の上方から約1/4程度の位置にしているが、この取付位
置は、適宜に定めることができる。補助電気ヒータ19
は、第3の連結管20の連結位置よりも上方に配置されて
いる。深夜電力で電気ヒータ18を通電して加熱した温水
の温度が、環境温度の低下又は時間の経過で低下した場
合や、貯湯タンク内の湯温が所望の温度まで加熱される
前に湯を使用した場合には、補助電気ヒータ19に通電す
ればよい。補助電気ヒータ19に通電すると、加熱された
温水は、図示の一点鎖線の上方対流路を通って対流し、
位置的に補助電気ヒータ19より上に位置する第1及び第
2の貯湯タンク21及び22の内部に補助電気ヒータ19によ
って加熱された温水が溜る。
FIG. 2 shows a modification of the embodiment of FIG. This embodiment is obtained by adding a reheating function and an instantaneous water heating function to the water heater of the embodiment shown in FIG. In the present embodiment, the tank main body of the first hot water storage tank 21 and the tank main body of the second hot water storage tank 2 are connected by a third connection pipe 20.
In the present embodiment, the mounting position of the third connection pipe 20 is set to a position of about 1/4 from above the tank body, but this mounting position can be determined as appropriate. Auxiliary electric heater 19
Are disposed above the connection position of the third connection pipe 20. Use the hot water when the temperature of the hot water heated by energizing the electric heater 18 with late-night electric power decreases due to a decrease in the environmental temperature or the passage of time, or before the hot water temperature in the hot water storage tank is heated to a desired temperature. In this case, the auxiliary electric heater 19 may be energized. When the auxiliary electric heater 19 is energized, the heated hot water convects through the upper convection flow path indicated by the dashed line,
Hot water heated by the auxiliary electric heater 19 accumulates in the first and second hot water storage tanks 21 and 22 which are positioned above the auxiliary electric heater 19.

なお補助電気ヒータ19を用いずに、電気ヒータ18だけ
を用いて焚上げる場合に、第2の連結管14を通してだけ
ではなく、第3の連結管20を通しても対流は生じるが、
実質的に影響はない。
When heating using only the electric heater 18 without using the auxiliary electric heater 19, convection occurs not only through the second connecting pipe 14 but also through the third connecting pipe 20,
There is virtually no effect.

本実施例によれば、追焚き又は瞬間湯沸かし機能を追
加したことにより、第1の実施例よりも、更に使い勝手
が良くなる。
According to the present embodiment, by adding the additional heating or the instant water heating function, the usability is further improved as compared with the first embodiment.

上記各実施例は、全て2本の貯湯タンクを備えたもの
であるが、本発明は2本以上の複数本の貯湯タンクを並
列接続した場合にも適用できるのは勿論である。
Although each of the above embodiments has two hot water storage tanks, the present invention can of course be applied to a case where two or more hot water storage tanks are connected in parallel.

また上記実施例では、給水管から各貯湯タンクを通っ
て給湯管に至る各流路の流体抵抗をほぼ等しくするため
に、各貯湯タンク及び連結管を同じ形状としている。し
かしながら、流路の流体抵抗を略等しくするためには、
必ずしも各貯湯タンク及び連結管を同じ形状とする必要
はなく、例えば一方の貯湯タンクの内径寸法が小さい場
合には、連結管の一部を太くして流路の流体抵抗を略等
しくすることができる。
In the above embodiment, the hot water storage tanks and the connecting pipes have the same shape in order to make the fluid resistance of each flow path from the water supply pipe to the hot water supply pipe through each hot water storage tank substantially equal. However, in order to make the fluid resistance of the flow path substantially equal,
It is not always necessary to make each hot water storage tank and the connecting pipe the same shape.For example, when the inner diameter of one hot water storage tank is small, it is possible to make a part of the connecting pipe thick and make the fluid resistance of the flow path substantially equal. it can.

[発明の効果] 本発明によれば、給水管から各貯湯タンクを通って給
湯管に至る各流路の流体抵抗をほぼ等しくしているた
め、複数本の貯湯タンクを並列に接続した場合でも、各
貯湯タンクからの給湯量をほぼ等しくすることができ、
各貯湯タンク内の湯を有効に利用することができる。
[Effects of the Invention] According to the present invention, since the fluid resistance of each flow path from the water supply pipe to the hot water supply pipe through each hot water storage tank is made substantially equal, even when a plurality of hot water storage tanks are connected in parallel. , The amount of hot water from each hot water storage tank can be almost equal,
Hot water in each hot water storage tank can be used effectively.

特に、電気ヒータを1本の貯湯タンク内に配置して、
第1及び第2の連結管を通して温水を各貯湯タンク内で
対流させるようにすれば、各貯湯タンク内を全て温水で
満たすことができ、タンクの使用効率を高めることがで
きる。
In particular, the electric heater is arranged in one hot water storage tank,
If hot water is made to convect in each hot water storage tank through the first and second connection pipes, all the hot water storage tanks can be filled with hot water, and the use efficiency of the tanks can be improved.

更に、第3の連結管と補助電気ヒータとを用いれば、
複数本の貯湯タンクを用いた場合でも、簡単に追焚きま
たは瞬間湯沸かしを行うことができる利点がある。
Further, if the third connecting pipe and the auxiliary electric heater are used,
Even when a plurality of hot water storage tanks are used, there is an advantage that additional heating or instant water heating can be easily performed.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明の一実施例の概略構成を示しており、第
2図は本発明の他の実施例の概略構成を示している。 11,12,21,22,……貯湯タンク、13……第1の連結管、14
……第2の連結管、5……給水管、6……給湯管、18…
…電気ヒータ、19……補助電気ヒータ。
FIG. 1 shows a schematic configuration of one embodiment of the present invention, and FIG. 2 shows a schematic configuration of another embodiment of the present invention. 11,12,21,22, ... hot water storage tank, 13 ... first connecting pipe, 14
… Second connecting pipe, 5… water supply pipe, 6… hot water supply pipe, 18…
... electric heater, 19 ... auxiliary electric heater.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 西村 純一 福岡県宗像郡福間町字汐井道2150番地の 1 九州変圧器株式会社内 (72)発明者 肝付 兼英 福岡県宗像郡福間町字汐井道2150番地の 1 九州変圧器株式会社内 (72)発明者 中山 則義 福岡県宗像郡福間町字汐井道2150番地の 1 九州変圧器株式会社内 (56)参考文献 実開 昭51−163564(JP,U) 実開 平1−106856(JP,U) 実開 平2−103648(JP,U) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Junichi Nishimura 2150, Shioi Road, Fukuma-cho, Munakata-gun, Fukuoka Prefecture Inside Kyushu Transformer Co., Ltd. No. 2150 1 Kyushu Transformer Co., Ltd. (72) Noriyoshi Nakayama Inventor 2150 No. 1 Shioido, Fukuma-cho, Munakata-gun, Fukuoka Prefecture 1 Kyushu Transformer Co., Ltd. (56) References , U) Japanese Utility Model 1-106856 (JP, U) Japanese Utility Model 2-103648 (JP, U)

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】下部に給水口を有し上部に給湯口を有する
貯湯タンクを複数本並設してなる貯湯式電気温水器にお
いて、 前記複数本の貯湯タンクの給水口(11a,12a)が第1の
連結管(13)を介して相互に接続されており、 前記複数本の貯湯タンクの給湯口(11b,12b)が第2の
連結管(14)を介して相互に接続されており、 前記第1の連結管(13)には給水管(5)が接続され且
つ前記第2の連結管(14)には給湯管(6)が接続さ
れ、 電気ヒータ(18)が1本の前記貯湯タンク(12,22)内
に配置され、 前記第1及び第2の連結管(13,14)の内径寸法は前記
給水管(5)または前記給湯管(6)の内径寸法よりも
大きく、 前記給水管(5)から各貯湯タンク(11,12,21,22)を
通って前記給湯管(6)に至る各流路の流体抵抗がほぼ
等しいことを特徴とする貯湯式電気温水器。
1. A hot water storage type electric water heater comprising a plurality of hot water storage tanks having a water supply port at a lower portion and a water supply port at an upper portion, wherein the water supply ports (11a, 12a) of the plurality of hot water storage tanks are provided. The hot water supply ports (11b, 12b) of the plurality of hot water storage tanks are connected to each other via a second connection pipe (14). A water supply pipe (5) is connected to the first connection pipe (13), a hot water supply pipe (6) is connected to the second connection pipe (14), and one electric heater (18) is provided. The inside diameter of the first and second connecting pipes (13, 14) is arranged in the hot water storage tank (12, 22), and is larger than the inside diameter of the water supply pipe (5) or the hot water supply pipe (6). The fluid resistance of each flow path from the water supply pipe (5) to the hot water supply pipe (6) through each of the hot water storage tanks (11, 12, 21, 22) is substantially equal. Storage-type electric water heater.
【請求項2】複数本の前記貯湯タンク(21,22)のタン
ク本体が第3の連結管(0)で相互に接続され、該第3
の連結管(20)内を経由する上方対流路内に補助電気ヒ
ータ(19)が設けられている請求項1に記載の貯湯式電
気温水器。
2. The tank body of the plurality of hot water storage tanks (21, 22) is connected to each other by a third connecting pipe (0).
The hot water storage type electric water heater according to claim 1, wherein an auxiliary electric heater (19) is provided in an upper counter flow path passing through the connecting pipe (20).
JP9187689A 1989-04-13 1989-04-13 Hot water storage type electric water heater Expired - Fee Related JP2638638B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9187689A JP2638638B2 (en) 1989-04-13 1989-04-13 Hot water storage type electric water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9187689A JP2638638B2 (en) 1989-04-13 1989-04-13 Hot water storage type electric water heater

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP5848595A Division JP2828412B2 (en) 1995-03-17 1995-03-17 Hot water storage type electric water heater

Publications (2)

Publication Number Publication Date
JPH02279950A JPH02279950A (en) 1990-11-15
JP2638638B2 true JP2638638B2 (en) 1997-08-06

Family

ID=14038762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9187689A Expired - Fee Related JP2638638B2 (en) 1989-04-13 1989-04-13 Hot water storage type electric water heater

Country Status (1)

Country Link
JP (1) JP2638638B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08110097A (en) * 1994-10-07 1996-04-30 Hitachi Air Conditioning & Refrig Co Ltd Lift type electric water heater
CN107328098A (en) * 2017-07-27 2017-11-07 安庆市鼎立汽车配件有限公司 A kind of induction heating apparatus for internal combustion engine air-exhausting air-entering door

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51163564U (en) * 1975-06-20 1976-12-27
JPH01106856U (en) * 1988-01-11 1989-07-19

Also Published As

Publication number Publication date
JPH02279950A (en) 1990-11-15

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