JPH0224047Y2 - - Google Patents
Info
- Publication number
- JPH0224047Y2 JPH0224047Y2 JP1985023016U JP2301685U JPH0224047Y2 JP H0224047 Y2 JPH0224047 Y2 JP H0224047Y2 JP 1985023016 U JP1985023016 U JP 1985023016U JP 2301685 U JP2301685 U JP 2301685U JP H0224047 Y2 JPH0224047 Y2 JP H0224047Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- inner cylinder
- hot water
- float
- temperature
- 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 83
- 230000005484 gravity Effects 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 10
- 230000005611 electricity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Details Of Fluid Heaters (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、主に深夜電力などを熱源として利
用する電気温水器に関する。[Detailed description of the invention] [Industrial application field] This invention relates to an electric water heater that mainly uses late-night electricity as a heat source.
深夜電力や第２深夜電力を利用する電気温水器
は、安価な電力を利用でき、操作が簡便で、かつ
無公害で安全であるなどの点から広く使用されて
いる。
Electric water heaters that use late-night power or second-night power are widely used because they can use cheap power, are easy to operate, and are safe and non-polluting.
しかしながら、現用の電気温水器には、次のよ
うな問題点があつた。 However, the current electric water heaters have the following problems.
通電時間が通常午後11時頃から翌日午後６時
頃と限られているので、通電前の夕方頃には給
湯温度がかなり低下して、高温水が十分得られ
ない。これは、主に温水器本体や配管などの断
熱が不十分であるため、これらの部分からの熱
漏洩に起因する温度低下と、給湯に伴つてて冷
水が供給されることによる温水の冷却とのため
である。そして、この給水による冷却は、さら
に冷水と温水とが混合することによる温水の温
度降下と、冷温水間の熱伝導による温度降下
と、本体の内壁を介する熱伝導による温度降下
との３つの原因によるものである。 Since the electricity is normally turned on only from around 11:00 pm to around 6:00 pm the next day, the hot water temperature drops considerably in the evening before the electricity is turned on, making it impossible to obtain sufficient high-temperature water. This is mainly due to insufficient insulation of the water heater body and piping, resulting in a temperature drop due to heat leakage from these parts, and cooling of hot water due to cold water being supplied with hot water supply. This is for the sake of The cooling caused by this water supply is caused by three factors: a temperature drop in hot water due to mixing of cold water and hot water, a temperature drop in heat conduction between cold and hot water, and a temperature drop in heat conduction through the inner wall of the main body. This is due to
通電開始直後においては、高温の温水が得ら
れない。これは通電開始直後は、温水器内部
は、前の温水がすべて供給されつくされ、冷水
で満されているためである。 Immediately after the start of electricity supply, high-temperature hot water cannot be obtained. This is because the interior of the water heater is filled with cold water after all the previous hot water has been supplied to the interior of the water heater immediately after power is started.
この考案は上記事情に鑑みてなされたもので、
通電開始前においても高温水が十分量得られ、か
つ通電開始直後においても、高温給湯が可能な電
気温水器を提供することを目的とするものであ
る。
This idea was made in view of the above circumstances,
It is an object of the present invention to provide an electric water heater that can obtain a sufficient amount of high-temperature water even before the start of energization and can supply high-temperature hot water even immediately after the start of energization.
第１図はこの考案の電気温水器の一例を示すも
ので、角筒形の電気温水器の例である。図中符号
１は電気温水器の本体である。この本体１は内筒
２、外筒３、底板４、内筒頂板５、外筒頂板６お
よび真空断熱板７とから概略構成される。
FIG. 1 shows an example of an electric water heater of this invention, and is an example of a rectangular cylindrical electric water heater. Reference numeral 1 in the figure is the main body of the electric water heater. This main body 1 is roughly composed of an inner cylinder 2, an outer cylinder 3, a bottom plate 4, an inner cylinder top plate 5, an outer cylinder top plate 6, and a vacuum insulation plate 7.
内筒２は、角筒状であつて、直接冷温水に接触
するためにステンレス鋼板やガラスライニング鋼
板などから形成されている。この内筒２の外側に
同軸状に角筒状の外筒３が設けられている。この
外筒３は、温水器の筐体となるもので塗装鋼板等
で形成されている。また、外筒３は内筒２との間
に所定の間隔を保つて配設されており、この空隙
内には真空断熱板７が充填されている。真空断熱
板７は、パーライト等の粉末や連続開気孔構造を
有するケイ酸カルシユウム成型体などをプラスチ
ツクフイルムやプラスチツク金属ラミネートフイ
ルムなどの袋で包み、その内部を10-1〜
10-3Torrに真空排気して気密に密封した断熱体
であり、熱伝導率がプラスチツクフオームやガラ
スウールなどよりも格段に低い（約1/3〜1/2）、
秀れた断熱体である。 The inner tube 2 has a rectangular tube shape and is made of a stainless steel plate, a glass-lined steel plate, or the like in order to come into direct contact with cold and hot water. A rectangular outer cylinder 3 is provided coaxially with the outer side of the inner cylinder 2. This outer cylinder 3 serves as a casing for the water heater, and is made of a painted steel plate or the like. Further, the outer cylinder 3 and the inner cylinder 2 are arranged with a predetermined spacing therebetween, and this gap is filled with a vacuum heat insulating plate 7. The vacuum insulation board 7 is made by wrapping a powder such as pearlite or a molded calcium silicate body having a continuous open pore structure in a bag made of plastic film or plastic metal laminate film, and then wrapping the inside of the bag with a temperature of 10 -1 to
It is an insulator that is evacuated to 10 -3 Torr and hermetically sealed, and its thermal conductivity is much lower than that of plastic foam or glass wool (approximately 1/3 to 1/2).
It is an excellent insulator.
また、内筒２の上端部にはこれを塞ぐように内
筒頂板５が一体に取り付けられている。さらに、
外筒３の上端部にもこれを塞ぐように外筒頂板６
が一体に取り付けられており、内筒頂板５と外筒
頂板６との間の空隙には、同様に真空断熱板７が
充填されている。 Further, an inner cylinder top plate 5 is integrally attached to the upper end of the inner cylinder 2 so as to close it. moreover,
An outer cylinder top plate 6 is also installed at the upper end of the outer cylinder 3 so as to cover it.
are integrally attached, and the gap between the inner cylinder top plate 5 and the outer cylinder top plate 6 is similarly filled with a vacuum heat insulating plate 7.
さらに、内筒２および外筒３の下端部には一枚
の底板４がこれらに一体に取り付けられ、これに
よつて内筒２内に水が貯えられるようになつてい
る。底板４は、水圧に耐える厚さとされるが、内
筒３と外筒３とを繋ぐ部分は、ヒートブリツヂの
形成を避けるために、出来るだけ厚さが薄く、か
つ熱伝導率の低い材料が用いられる。 Further, a single bottom plate 4 is integrally attached to the lower ends of the inner cylinder 2 and the outer cylinder 3, so that water can be stored in the inner cylinder 2. The bottom plate 4 is thick enough to withstand water pressure, but the part that connects the inner cylinder 3 and the outer cylinder 3 is made of a material that is as thin as possible and has low thermal conductivity in order to avoid the formation of heat bridges. It will be done.
また、本体１の底部の略中央部には加熱用の電
気ヒータ８が底板４から突出して取り付けられて
いる。上記底板４には、給水口９が穿けられ、給
水管１０が接続されている。一方、内筒頂板５の
略中央部には給湯口１１が穿けられ、この給湯口
１１には給湯管１２が外筒頂板６および真空断熱
板７を貫通して接続されている。また、内筒２の
中心軸線位置には瞬時昇温管１３が設けられてい
る。この昇温管１３はステンレスパイプなどの直
管であり、その下端開口部に上記電気ヒータ８の
上部が入り込み、かつその上端開口部が上記給湯
口１１に臨むように略垂直に配置されている。 Further, an electric heater 8 for heating is attached to the substantially central portion of the bottom of the main body 1 so as to protrude from the bottom plate 4. A water supply port 9 is bored in the bottom plate 4, and a water supply pipe 10 is connected thereto. On the other hand, a hot water supply port 11 is bored approximately in the center of the inner cylinder top plate 5, and a hot water supply pipe 12 is connected to the hot water supply port 11 by passing through the outer cylinder top plate 6 and the vacuum insulation plate 7. Further, an instantaneous heating tube 13 is provided at the center axis of the inner cylinder 2 . The heating tube 13 is a straight pipe such as a stainless steel pipe, and is arranged approximately vertically so that the upper part of the electric heater 8 enters into its lower end opening, and its upper end opening faces the hot water supply port 11. .
また、内筒２の下部には整流板１４が設けられ
ている。この整流板１４は温水と冷水との混合を
防止するもので、ドーナツ状の円板を内筒２から
略垂直に溶接等の手段によつて一体に取り付けた
ものである。整流板１４と昇温管１３との間には
わずかな水の流れる空隙が形成されている。 Further, a current plate 14 is provided at the lower part of the inner cylinder 2. This rectifying plate 14 prevents mixing of hot water and cold water, and is a donut-shaped disk that is integrally attached approximately perpendicularly to the inner cylinder 2 by means such as welding. A gap is formed between the current plate 14 and the temperature rising tube 13 through which a small amount of water flows.
さらに、内筒２内には温水と冷水と混合を防止
するための浮子１５が設けられている。この浮子
１５は、ドーナツ状であつて、その中心穴に上記
昇温管１３が挿通され、昇温管１３をガイドとし
て上下方向に移動自在となつている。この浮子１
５の比重は、所定の温水温度85℃よりも約５℃低
い温度の水の比重0.972に等しくされる。浮子１
５の比重をこの値に設定することにより、浮子１
５の上部にある水は80℃以上の高温水となり、冷
水との混合が防止される。浮子１５の素材には、
断熱性の良好なプラスチツクや先の真空断熱板が
使用され、これを不透水性材料で被覆し、ステン
レス鋼などの錘を配して比重を上記値に合致させ
るように調整する。また、浮子１５には無接点セ
ンサー１６が内蔵されている。この無接点センサ
ー１６には、例えば高周波式、電磁式などが使用
される。 Furthermore, a float 15 is provided in the inner cylinder 2 to prevent hot water and cold water from mixing. The float 15 is donut-shaped, and the heating tube 13 is inserted through its center hole, so that it is movable vertically using the heating tube 13 as a guide. This float 1
The specific gravity of 5 is made equal to the specific gravity of water at a temperature approximately 5°C lower than the predetermined hot water temperature of 85°C, 0.972. Float 1
By setting the specific gravity of 5 to this value, float 1
The water at the top of No. 5 becomes high-temperature water of 80°C or higher, and mixing with cold water is prevented. The material of float 15 includes:
Plastic with good thermal insulation properties or the vacuum insulation board mentioned above is used, and this is covered with a water-impermeable material, and a weight made of stainless steel or the like is placed to adjust the specific gravity to match the above value. Further, the float 15 has a built-in non-contact sensor 16. For this non-contact sensor 16, for example, a high frequency type, an electromagnetic type, etc. are used.
このような電気温水器にあつては、本体１の断
熱に極めて断熱性の良好な真空断熱板７を用いて
いるので、本体１の保温性能が向上し、本体１全
体からの漏洩熱量が少なくなり、内筒２の内容積
に対する比表面積を大きくとることができ、温水
器を背高型とすることができる。背高型とするこ
とにより、冷温水間の伝熱面積が減少し、かつそ
の周囲の内筒断面積が減少し、また冷温水間の電
熱距離が長くなるなどによつて保温性能が一層向
上し、設置スペースも小さくて済む。
In the case of such an electric water heater, since the vacuum insulation board 7 with extremely good insulation properties is used to insulate the main body 1, the heat retention performance of the main body 1 is improved, and the amount of heat leaked from the entire main body 1 is reduced. Therefore, the specific surface area relative to the internal volume of the inner cylinder 2 can be increased, and the water heater can be of a tall type. The tall design reduces the heat transfer area between hot and cold water, reduces the cross-sectional area of the inner cylinder around it, and increases the electrical heating distance between hot and cold water, further improving heat retention performance. Also, the installation space is small.
また、比重が沸き上がりの温水の比重と等しい
浮子１５を配しているので、温水と新しく流入す
る冷水とが混り合うことがなく、温水は使い尽す
まで高い温度に保持される。しかも浮子１５は断
熱性が高いので温水と冷水との間での熱伝導が少
なく、これによつても温水の温度降下が最小限に
維持される。また、浮子１５は、その設定比重の
点から、温水の最下位置に常に位置することにな
るので、無接点センサー１６の位置により高温水
量の検知が可能となり、浮子１５の最下位置（整
流板１４の上の位置）を知ることにより沸き上り
完了を知ることができ、特にサーモスタツトを設
ける必要がない。 Furthermore, since the float 15 is provided with a specific gravity equal to that of boiling hot water, hot water and newly flowing cold water do not mix, and the hot water is maintained at a high temperature until it is used up. Moreover, since the float 15 has high heat insulation properties, there is little heat conduction between the hot water and the cold water, and this also keeps the temperature drop of the hot water to a minimum. In addition, since the float 15 is always located at the lowest position of hot water due to its set specific gravity, the amount of high-temperature water can be detected by the position of the non-contact sensor 16, and the lowest position of the float 15 (rectified By knowing the position on the plate 14), the completion of boiling can be known, and there is no need to provide a thermostat.
さらに、瞬間昇温管１３を設けているので、通
電開始後の内筒２内の水の大部分が冷水の状態で
あつても、電気ヒータ８で加熱された高温水がこ
の昇温管１３を上昇し、そのまま内筒頂板５の給
湯口１１から給湯管１２に流入し、高温水を得る
ことができる。 Furthermore, since the instantaneous heating tube 13 is provided, even if most of the water in the inner cylinder 2 is cold water after the start of energization, the high temperature water heated by the electric heater 8 will flow through the heating tube 13. The hot water rises and directly flows into the hot water supply pipe 12 from the hot water supply port 11 of the inner cylinder top plate 5, so that high-temperature water can be obtained.
またさらに、整流板１４を設けたことにより温
水と冷水との混合が防止され、かつ整流板１４の
下方の領域には冷水が常に溜り、本体１の底部か
らの放熱が抑えられ、保温性能が向上する。 Furthermore, by providing the rectifying plate 14, mixing of hot water and cold water is prevented, and cold water always accumulates in the area below the rectifying plate 14, suppressing heat radiation from the bottom of the main body 1, and improving heat retention performance. improves.
第２図はこの考案の他の例を示すもので、この
例は丸筒型の電気温水器である。第１図に示した
ものと同一構成部分には同一符号を付してその説
明を省略する。本体１の内筒２および外筒３は円
筒状とされ、これに伴つて内筒頂板６および底板
４はドーム状に形成されている。また、外筒頂板
６および頂部の真空断熱板７を設けずに、ケイ酸
カルシウム成形体よりなる頂部部材１７を設け
て、筐体の一部としている。
FIG. 2 shows another example of this invention, and this example is a cylindrical electric water heater. Components that are the same as those shown in FIG. 1 are given the same reference numerals, and their explanations will be omitted. The inner tube 2 and outer tube 3 of the main body 1 are cylindrical, and the inner tube top plate 6 and bottom plate 4 are formed in a dome shape. Moreover, the top member 17 made of a calcium silicate molded body is provided instead of providing the outer cylinder top plate 6 and the top vacuum heat insulating plate 7 to form a part of the casing.
この例では、円筒形とすることにより内筒２お
よび底板４の耐圧が高くなり、材料を薄肉化でき
る。 In this example, by forming the inner cylinder 2 and the bottom plate 4 into a cylindrical shape, the pressure resistance of the inner cylinder 2 and the bottom plate 4 is increased, and the material can be made thinner.
以上説明したように、この考案の電気温水器
は、本体の断熱に極めて高断熱性の真空断熱体を
用いたので、本体からの放熱が微かに抑えられ、
かつ温水と冷水との混合を防止する浮子を設けた
ので、温水はこれが使いつくされるまで80℃程度
の高温に維持される。また、瞬間昇温管により通
電直後においても高温水を得ることができる。よ
つて、この温水器によれば、所望の高温温水を常
時給湯することが可能である。また、背高型とす
ることが可能であるので、設置スペースも少なく
て済むなどの利点がある。
As explained above, the electric water heater of this invention uses a vacuum insulator with extremely high thermal insulation properties to insulate the main body, so the heat radiation from the main body is slightly suppressed.
In addition, a float was installed to prevent hot and cold water from mixing, so the hot water was maintained at a high temperature of around 80°C until it was used up. In addition, high temperature water can be obtained using the instantaneous heating tube even immediately after energization. Therefore, according to this water heater, it is possible to constantly supply desired high-temperature hot water. Furthermore, since it can be made taller, it has the advantage of requiring less installation space.
第１図および第２図はいずれもこの考案の電気
温水器の例を示す概略断面図である。
１……本体、２……内筒、３……外筒、７……
真空断熱板、８……電気ヒータ、１１……給湯
口、１３……瞬時昇温管、１５……浮子。
Both FIGS. 1 and 2 are schematic sectional views showing examples of the electric water heater of this invention. 1... Main body, 2... Inner cylinder, 3... Outer cylinder, 7...
Vacuum insulation board, 8...electric heater, 11...hot water inlet, 13...instantaneous heating tube, 15...float.
Claims (1)
部に電気ヒータと給水口とを設け、かつ該電気ヒ
ータの上方から内筒頂部に設けられた給湯口に向
けて瞬間昇温管を設け、内筒内に冷水と温水とを
区分しつつ内筒内を上下に移動する板状断熱体か
らなる浮子を設け、この浮子の比重を、所定の沸
き上がり温度よりやや低い温度の水に浮く比重に
設定したことを特徴とする電気温水器。 A vacuum insulator is placed between the inner cylinder and the outer cylinder, an electric heater and a water inlet are provided at the bottom of the inner cylinder, and an electric heater is instantaneously raised from above the electric heater to the hot water inlet provided at the top of the inner cylinder. A hot pipe is provided, and a float made of a plate-shaped insulating material that moves up and down within the inner cylinder while separating cold water and hot water is installed, and the specific gravity of this float is set to a temperature slightly lower than the predetermined boiling temperature. An electric water heater characterized by having a specific gravity that allows it to float on water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985023016U JPH0224047Y2 (en) | 1985-02-20 | 1985-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985023016U JPH0224047Y2 (en) | 1985-02-20 | 1985-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61138954U JPS61138954U (en) | 1986-08-28 |
| JPH0224047Y2 true JPH0224047Y2 (en) | 1990-07-02 |
Family
ID=30515859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985023016U Expired JPH0224047Y2 (en) | 1985-02-20 | 1985-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0224047Y2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4555135B2 (en) * | 2005-03-30 | 2010-09-29 | 積水ハウス株式会社 | Hot water storage system |
| JP2007139298A (en) * | 2005-11-18 | 2007-06-07 | Corona Corp | Hot water storage type water heater |
| JP4630257B2 (en) * | 2006-10-26 | 2011-02-09 | 多田プラスチック工業株式会社 | Hot water storage tank insulation structure and manufacturing method of divided insulation members |
| JP4920468B2 (en) | 2007-03-26 | 2012-04-18 | ニチアス株式会社 | Insulated container and manufacturing method thereof |
| JP4305544B2 (en) * | 2007-03-30 | 2009-07-29 | パナソニック株式会社 | Hot water storage water heater |
| JP5040571B2 (en) * | 2007-10-03 | 2012-10-03 | パナソニック株式会社 | Hot water storage water heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5086761U (en) * | 1973-12-12 | 1975-07-23 |
-
1985
- 1985-02-20 JP JP1985023016U patent/JPH0224047Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61138954U (en) | 1986-08-28 |
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