JPH0875271A - Hot water feeding equipment - Google Patents
Hot water feeding equipmentInfo
- Publication number
- JPH0875271A JPH0875271A JP6207155A JP20715594A JPH0875271A JP H0875271 A JPH0875271 A JP H0875271A JP 6207155 A JP6207155 A JP 6207155A JP 20715594 A JP20715594 A JP 20715594A JP H0875271 A JPH0875271 A JP H0875271A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- heat
- storage tank
- boiling point
- heat medium
- 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.)
- Withdrawn
Links
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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は給湯装置に関し、例えば
太陽熱を利用したいわゆる太陽熱温水装置や大気熱を利
用したヒートポンプ式給湯装置や電気を利用した電気温
水器等に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply device, for example, a so-called solar water heater using solar heat, a heat pump water heater using atmospheric heat, an electric water heater using electricity, and the like.
【０００２】[0002]
【従来の技術とその問題点】従来、図４に示すように、
貯湯槽２１と集熱器２２とが分離され、集熱器２２を屋
根等の太陽光を好適に受ける場所に設置し、集熱器２２
と貯湯槽２１とを熱媒を循環させる循環配管２３（貯湯
槽２１側から集熱器２２側へ熱媒が流れる往き配管２３
ａと、集熱器２２側から貯湯槽２１側へ熱媒が流れる戻
り配管２３ｂとから成る）を介して接続し、集熱器２２
でもって加熱した熱媒を、例えば貯湯槽２１側から集熱
器２２側へ熱媒が流れる往き配管２３ａに設けたポンプ
２４でもって強制的に熱媒を循環せしめることにより、
貯湯槽２１内の温度を所定温度以上に保つことができ、
貯湯槽２１から湯を供給できるようにした強制循環型の
太陽熱温水装置Ｓ０が知られている。2. Description of the Related Art Conventionally, as shown in FIG.
The hot water storage tank 21 and the heat collector 22 are separated, and the heat collector 22 is installed in a place such as a roof where the sunlight is suitably received.
And a circulation pipe 23 for circulating the heat medium between the hot water storage tank 21 and the hot water storage tank 21 (the forward piping 23 through which the heat medium flows from the hot water storage tank 21 side to the heat collector 22 side)
a and a return pipe 23b through which a heat medium flows from the heat collector 22 side to the hot water storage tank 21 side).
By forcibly circulating the heated heating medium by, for example, the pump 24 provided in the forward pipe 23a where the heating medium flows from the hot water tank 21 side to the heat collector 22 side,
The temperature inside the hot water storage tank 21 can be maintained above a predetermined temperature,
A forced circulation type solar water heater S0 is known in which hot water can be supplied from the hot water storage tank 21.
【０００３】循環配管２３に使用される熱媒には、熱媒
が凍結して配管が破損しないように、外気温が氷点下に
なっても凍結しにくく、かつ配管内部を腐食させにくい
ものが選ばれるが、例えば、水に所定量のプロピレング
リコール，着色料，防腐剤等を含有させたものが一般的
に使用される。なお、熱媒に含まれる着色料は熱媒が貯
湯槽内に漏れたような場合にその発見が容易なように混
入されるものであり、防腐剤は配管の腐食防止のために
混入される。The heat medium used in the circulation pipe 23 is selected so that the heat medium does not freeze and the pipe is not damaged even if the outside temperature is below freezing, and the inside of the pipe does not corrode so that the heat medium does not freeze. However, for example, water containing a predetermined amount of propylene glycol, a coloring agent, a preservative and the like is generally used. The colorant contained in the heat medium is mixed in so that it can be easily found when the heat medium leaks into the hot water storage tank, and the preservative is mixed in to prevent corrosion of the piping. .
【０００４】しかしながら、図３に示すように、プロピ
レングリコールの水に対する濃度−沸点の関係は、プロ
ピレングリコールの濃度が高くなるにしたがって沸点が
上昇し、標準状態では熱媒の沸点は１００℃以上を越
え、貯湯槽内の水の温度も１００℃以上になる恐れがあ
る。このため、貯湯槽内の温度が１００℃を越えると、
貯湯槽の圧力容器の法的規制を受け、容器を厚くする必
要がある上、給湯圧力が小さくなるので、使い勝手が非
常に悪くなるといった問題があった。However, as shown in FIG. 3, in the concentration-boiling point relationship of propylene glycol with respect to water, the boiling point rises as the concentration of propylene glycol increases, and in the standard state, the boiling point of the heating medium is 100 ° C. or higher. The temperature of the water in the hot water storage tank may exceed 100 ° C. Therefore, if the temperature in the hot water tank exceeds 100 ° C,
Due to the legal regulation of the pressure vessel of the hot water storage tank, it is necessary to make the vessel thicker, and since the hot water supply pressure becomes smaller, there is a problem that the usability becomes extremely poor.
【０００５】そこで、本発明では上述の問題点を解消
し、熱媒として水の沸点より高いものを使用した場合で
も、貯湯槽内の水の温度が１００℃以上にならないよう
に簡便な構成で実現することができ、利便性の極めて優
れた給湯装置を提供することを目的とする。Therefore, the present invention solves the above problems and has a simple structure so that the temperature of the water in the hot water storage tank does not exceed 100 ° C. even when a heat medium having a boiling point higher than the boiling point of water is used. It is an object of the present invention to provide a hot water supply device that can be realized and is extremely convenient.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、本発明の給湯装置は、集熱手段と貯湯槽とを沸点が
水と同等もしくは水より高い性質の熱媒を流す循環配管
を介して接続するとともに、循環配管のうち集熱手段か
ら貯湯槽側へ熱媒が流れる配管の少なくとも一部を、沸
点が水と同等もしくは水より低い性質の冷媒で冷却する
ように構成したことを特徴とする。In order to solve the above-mentioned problems, the hot water supply apparatus of the present invention comprises a circulation pipe for flowing a heat medium having a boiling point equal to or higher than that of water between the heat collecting means and the hot water storage tank. It is configured such that at least a part of the pipe of the circulation pipe through which the heat medium flows from the heat collecting means to the hot water tank side is cooled by a refrigerant having a boiling point equal to or lower than that of water. Characterize.
【０００７】なおここで、給湯装置とは集熱方法として
太陽熱を利用した太陽熱温水装置、大気熱を利用したヒ
ートポンプ式給湯装置、または電気熱を利用した電気温
水器等、集熱手段と貯湯槽との間を熱媒が循環するタイ
プの給湯装置であればどのようなものでもかまわない。
また、集熱手段とは熱媒を加熱するものであればよく、
例えば太陽熱温水装置の場合には集熱器が、ヒートポン
プ式給湯装置の場合にはヒートポンプユニットが、電気
温水器の場合にはヒーター等が相当する。さらに、冷媒
としては沸点が水と同等もしくは低いものであればよ
く、例えば水や各種アルコール類等が使用可能である
が、特に冷媒として水を用い大気開放した水槽等に循環
配管を冷却するようにすれば、極めて簡便な構成で好適
に熱媒を水の沸点以下に冷却させることが可能となる。Here, the hot water supply device is a solar water heating device that uses solar heat as a heat collecting method, a heat pump type water heating device that uses atmospheric heat, or an electric water heater that uses electric heat. Any type of hot water supply device may be used as long as the heating medium circulates between and.
Further, the heat collecting means may be one that heats the heat medium,
For example, a heat collector corresponds to a solar water heater, a heat pump unit corresponds to a heat pump water heater, and a heater or the like corresponds to an electric water heater. Further, the refrigerant may have a boiling point equivalent to or lower than that of water, and for example, water or various alcohols can be used, but especially water is used as the refrigerant, and the circulation pipe is cooled in a water tank opened to the atmosphere. By doing so, it becomes possible to cool the heat medium to a temperature not higher than the boiling point of water with a very simple structure.
【０００８】[0008]
【作用】上記構成の給湯装置によれば、集熱手段から貯
湯槽側へ熱媒が流れる配管が水の沸点以下に冷却される
ので、たとえ熱媒が水の沸点以上になることがあって
も、貯湯槽から取り出される水を沸点以下とすることが
でき、水圧も１ｋｇ／cm2以上とすることができ、従来
のように貯湯槽の容器の厚みを厚くする必要もなく、し
かも給湯圧力も低減させる必要がない。According to the hot water supply apparatus having the above structure, the pipe through which the heat medium flows from the heat collecting means to the side of the hot water tank is cooled to the boiling point of water or less, so that the heat medium may be above the boiling point of water. In addition, the water taken out from the hot water storage tank can be kept below the boiling point, and the water pressure can be 1 kg / cm 2 or higher. Does not need to be reduced.
【０００９】[0009]
【実施例】本発明に係る一実施例を詳細に説明する。ま
ず、図１に示す給湯装置Ｓ１の構成について説明する。
給湯装置Ｓ１は、貯湯槽１と集熱器２（集熱手段）とを
循環配管３でもって接続し、太陽熱を利用して循環配管
３内の熱媒を加熱し、この熱媒の温度でもって貯湯槽１
内の水を加熱するように構成した太陽熱温水装置であ
る。EXAMPLE An example according to the present invention will be described in detail. First, the configuration of hot water supply device S1 shown in FIG. 1 will be described.
The hot water supply device S1 connects the hot water storage tank 1 and the heat collector 2 (heat collecting means) with the circulation pipe 3, heats the heat medium in the circulation pipe 3 using solar heat, and adjusts the temperature of the heat medium. Hot water storage tank 1
It is a solar water heating device configured to heat the water inside.
【００１０】ここで、貯湯槽１内を常に水で満たすため
に水が供給されるべく、貯湯槽１の下部には給水口１ａ
が設けられ、さらに図示しない水道栓に接続された給水
管４が接続されている。また、貯湯槽１の上部には給湯
口１ｂが設けられ、所定温度以上の湯が給湯できるよう
に給湯管５が接続されている。Here, in order to constantly fill the hot water storage tank 1 with water, the water supply port 1a is provided at the bottom of the hot water storage tank 1.
And a water supply pipe 4 connected to a water tap (not shown). A hot water supply port 1b is provided in the upper part of the hot water storage tank 1, and a hot water supply pipe 5 is connected so that hot water having a predetermined temperature or higher can be supplied.
【００１１】また、貯湯槽１内の下方には円管がコイル
状に巻かれて構成された第１の熱交換器６が設けられ、
さらに往き配管（貯湯槽１側から集熱器２側へ熱媒が流
れる配管）３ａには、熱媒を強制的に循環させるポンプ
７が設けられている。Further, below the inside of the hot water storage tank 1, there is provided a first heat exchanger 6 formed by winding a circular pipe in a coil shape,
Further, a pump 7 for forcibly circulating the heat medium is provided in the outward pipe (a pipe through which the heat medium flows from the hot water tank 1 side to the heat collector 2 side) 3a.
【００１２】集熱器２は、家屋の屋根等の傾斜面に太陽
熱が効果的に利用できるように配設され、内部には多数
の集熱管が並列的に配されている。集熱器２側から貯湯
槽１側に接続される循環配管３の戻り配管３ｂには、常
時、相当量の熱媒が貯留された熱媒タンク８が設けら
れ、集熱器２から流れる熱媒は熱媒タンク８内に放出さ
れ、熱媒の容積変化を吸収し、熱媒中の気泡を除去する
役割を果たす。なお、本実施例では大気に開放した開放
型の熱媒タンクを示したが、通常は大気に開放しない密
閉型でもよい。The heat collector 2 is arranged so that solar heat can be effectively used on an inclined surface such as a roof of a house, and a large number of heat collecting tubes are arranged in parallel inside. The return pipe 3b of the circulation pipe 3 connected from the heat collector 2 side to the hot water storage tank 1 side is always provided with a heat medium tank 8 in which a considerable amount of heat medium is stored, and the heat flowing from the heat collector 2 is constantly supplied. The medium is discharged into the heat medium tank 8, absorbs the volume change of the heat medium, and plays a role of removing bubbles in the heat medium. In this embodiment, the open type heat medium tank open to the atmosphere is shown, but a closed type that does not open to the atmosphere may be used.
【００１３】熱媒タンク８と貯湯槽１との間の戻り配管
３ｂには、水（冷媒）で満たされ、大気に開放された冷
媒タンク９が設けられ、この冷媒タンク９内に戻り配管
３ｂがコイル状に巻かれて構成された第２の熱交換器１
０が配設されている。ここで、第２の熱交換器１０は表
面積が約０．４ｍ2 程度であり、循環配管３中の熱媒が
８０℃〜１００℃に冷却可能なように設計されている。
なお、この実施例では熱媒タンク８を集熱器２と貯湯槽
１との間、すなわち貯湯槽１の上流側に設けたが下流側
に設けてもよい。また冷媒タンク９は１００℃を越える
熱媒を１００℃以下にしてから貯湯槽１内に送出する必
要があるため、貯湯槽１の上流側に設ける必要がある。The return pipe 3b between the heat medium tank 8 and the hot water storage tank 1 is provided with a refrigerant tank 9 filled with water (refrigerant) and open to the atmosphere. Second heat exchanger 1 configured by winding a coil
0 is set. Here, the second heat exchanger 10 has a surface area of about 0.4 m 2 and is designed so that the heat medium in the circulation pipe 3 can be cooled to 80 ° C to 100 ° C.
In this embodiment, the heat medium tank 8 is provided between the heat collector 2 and the hot water storage tank 1, that is, on the upstream side of the hot water storage tank 1, but may be provided on the downstream side. Further, the refrigerant tank 9 needs to be provided on the upstream side of the hot water storage tank 1 because it is necessary to send the heat medium having a temperature over 100 ° C. to 100 ° C. or lower before it is delivered into the hot water storage tank 1.
【００１４】冷媒は水以外に各種アルコール類でもよ
く、沸点が水と同等もしくは低いものであればよい。特
に冷媒として水を用い大気開放した水槽等を用いれば、
極めて簡便な構成で好適に熱媒を水の沸点以下に冷却さ
せることが可能となる。また、熱媒は図３に示すような
濃度−沸点特性を有するプロピレングリコールを主成分
とする溶液を使用したが、沸点が水より高いものであれ
ばよい。The refrigerant may be various alcohols in addition to water, as long as it has a boiling point equal to or lower than that of water. Especially if you use a water tank that uses water as a refrigerant and is open to the atmosphere,
It becomes possible to cool the heat medium to a temperature not higher than the boiling point of water with an extremely simple structure. Further, as the heat medium, a solution containing propylene glycol as a main component having the concentration-boiling point characteristic as shown in FIG. 3 was used, but the boiling point may be higher than that of water.
【００１５】次に、上記構成の給湯装置Ｓ１の作動につ
いて説明する。往き配管３ａに設けられたポンプ７で送
出された熱媒は、集熱器２で温められた後、戻り配管３
ｂに流れ、戻り配管３ｂに設けられた熱媒タンク８に吸
収され、熱媒中の気泡が除去される。次いで、熱媒は冷
媒タンク９で第２の熱交換器１０でもって８０〜１００
℃程度に冷却され、第１の熱交換器６でもって貯湯槽１
内の水を加温する。Next, the operation of the hot water supply device S1 having the above structure will be described. The heat medium sent out by the pump 7 provided in the outgoing pipe 3a is warmed in the heat collector 2 and then returned to the return pipe 3a.
b, and is absorbed by the heat medium tank 8 provided in the return pipe 3b, and the bubbles in the heat medium are removed. Then, the heat medium is 80 to 100 in the refrigerant tank 9 in the second heat exchanger 10.
The hot water storage tank 1 is cooled by about 1 ° C and is heated by the first heat exchanger 6.
Heat the water inside.
【００１６】このようにして、熱媒は冷媒タンク９で水
の沸点以下に冷却されるので、貯湯槽１内の水は、水の
沸点を越えることが無く、従来のように貯湯槽１を圧力
容器としての法的規制を受けることがなくなり、給湯圧
力を低減させることが不要となる。In this way, the heat medium is cooled to below the boiling point of water in the refrigerant tank 9, so that the water in the hot water storage tank 1 does not exceed the boiling point of water, and the hot water storage tank 1 can be stored in the same manner as in the conventional case. There is no need to be legally regulated as a pressure vessel, and it becomes unnecessary to reduce the hot water supply pressure.
【００１７】次に他の実施例について説明する。図２に
示す給湯装置Ｓ２は、集熱手段としてヒートポンプユニ
ット１１を用いたものであり、大気熱を利用して熱媒を
加熱するようにしたヒートポンプ式給湯装置である。給
湯装置Ｓ１と同様に貯湯槽１及び循環配管３やポンプ７
冷媒タンク９の構成は同様である。なお、熱媒として水
を使用した場合、給湯装置Ｓ１で必要とした第２の熱交
換器１０は不要としてもよく、この場合に戻り配管３ｂ
を開放とするようにしたり、また大気に開放した冷媒タ
ンク９で冷却するようにしてもよい。Next, another embodiment will be described. The water heater S2 shown in FIG. 2 uses the heat pump unit 11 as the heat collecting means, and is a heat pump water heater that heats the heating medium by using atmospheric heat. Similar to the hot water supply device S1, the hot water storage tank 1, the circulation pipe 3 and the pump 7
The structure of the refrigerant tank 9 is the same. When water is used as the heat medium, the second heat exchanger 10 required in the hot water supply device S1 may be unnecessary, and in this case, the return pipe 3b
May be opened, or may be cooled by the refrigerant tank 9 open to the atmosphere.
【００１８】給湯装置Ｓ１と大きく異なる点は、集熱手
段として集熱器２の代わりにヒートポンプユニット１１
を使用した点である。すなわち、熱媒が蒸発し気体にな
る時に熱を奪い、気体が凝縮し液体になる時に熱を捨て
る性質を利用して、大気熱によりユニット１１に設けた
蒸発器で熱媒を蒸発させ熱を奪い、ユニット１１内に備
えた圧縮器にて、熱媒を圧縮して、高温・高圧のガスと
して第１の熱交換器６に送り、貯湯槽１内の水に熱を奪
われ凝縮し液体となって蒸発器に戻るサイクルを繰り返
す。このように、大気熱を利用して温水を作りだす点が
給湯装置Ｓ１と相違するが、給湯装置Ｓ２においても、
循環配管３の戻り配管３ｂを冷却することによって、熱
媒を１００℃以下に冷却することができ、給湯装置Ｓ１
と同様な効果を期待することができる。A big difference from the water heater S1 is that the heat pump unit 11 is used as the heat collecting means instead of the heat collector 2.
Is the point that was used. That is, when the heat medium evaporates and becomes a gas, heat is taken away, and when the gas condenses and becomes a liquid, the heat is abandoned. Deprived, the compressor provided in the unit 11 compresses the heat medium and sends it to the first heat exchanger 6 as a high temperature and high pressure gas, and the water in the hot water storage tank 1 deprives the heat of condensation and condenses the liquid. Then, the cycle of returning to the evaporator is repeated. As described above, the hot water supply device S1 differs from the hot water supply device S1 in that hot water is produced by using atmospheric heat.
By cooling the return pipe 3b of the circulation pipe 3, the heat medium can be cooled to 100 ° C. or lower, and the water heater S1
The same effect as can be expected.
【００１９】なお、本実施例では給湯装置として、集熱
方法として太陽熱を利用した太陽熱温水装置、大気熱を
利用したヒートポンプ式給湯装置について説明したが、
電気熱を利用した電気温水器等でも適用が可能であり、
集熱手段と貯湯槽との間を熱媒が循環するタイプの給湯
装置であればどのようなものでもよい。また、本実施例
ではポンプを使用して熱媒を強制的に循環させるタイプ
の給湯装置を示したが、ポンプを使用しない自然循環タ
イプの給湯装置であってもよく、本発明の要旨を逸脱し
ない範囲内で適宜変更し実施が可能である。In this embodiment, as the hot water supply device, a solar hot water device using solar heat and a heat pump type hot water supply device using atmospheric heat were described as the heat collecting method.
It can also be applied to electric water heaters that use electric heat.
Any hot water supply device of the type in which a heat medium circulates between the heat collecting means and the hot water storage tank may be used. Further, although the hot water supply device of the type in which the heat medium is forcibly circulated by using the pump is shown in the present embodiment, a natural circulation type water supply device without the pump may be used, which deviates from the gist of the present invention. It can be implemented by appropriately changing within the range not to do.
【００２０】[0020]
【発明の効果】以上のように、本発明の給湯装置によれ
ば、熱媒として水の沸点より高いものを使用した場合で
も、集熱手段側から貯湯槽側へ熱媒が流れる配管を沸点
が水と同等もしくは低い冷媒で冷却するように構成した
ので、きわめて簡便な構成で貯湯槽内の給湯温度を水の
沸点以下にすることが可能となり、貯湯槽内の水の圧力
を高めることができるので、給湯圧力を従来のように低
減させる必要がなく、使い勝手の優れた給湯装置を供給
することが可能となる。As described above, according to the hot water supply apparatus of the present invention, even when a heat medium having a boiling point higher than that of water is used, the boiling point of the pipe through which the heat medium flows from the heat collecting means side to the hot water tank side Since it is configured to cool with a refrigerant that is equal to or lower than water, it is possible to make the hot water supply temperature in the hot water storage tank below the boiling point of water with a very simple configuration, and to increase the pressure of water in the hot water storage tank. Therefore, it is not necessary to reduce the hot water supply pressure as in the conventional case, and it is possible to supply a hot water supply device having excellent usability.
【図１】本発明に係る一実施例の給湯装置を示す概略構
成図である。FIG. 1 is a schematic configuration diagram showing a hot water supply device according to an embodiment of the present invention.
【図２】本発明に係る他の実施例の給湯装置を示す概略
構成図である。FIG. 2 is a schematic configuration diagram showing a hot water supply device according to another embodiment of the present invention.
【図３】熱媒の濃度−沸点の関係を示す特性図である。FIG. 3 is a characteristic diagram showing a relationship between a concentration of a heat medium and a boiling point.
【図４】従来の給湯装置の一例を示す概略構成図であ
る。FIG. 4 is a schematic configuration diagram showing an example of a conventional hot water supply device.
１ ・・・ 貯湯槽 ２ ・・・ 集熱器（集熱手段） ３ ・・・ 循環配管 ６ ・・・ 第１の熱交換器 ８ ・・・ 熱媒タンク ９ ・・・ 冷媒タンク １０ ・・・ 第２の熱交換器 １１ ・・・ ヒートポンプユニット（集熱手段） Ｓ１，Ｓ２ ・・・ 給湯装置 1 ... Hot water storage tank 2 ... Heat collector (heat collecting means) 3 ... Circulation piping 6 ... First heat exchanger 8 ... Heat medium tank 9 ... Refrigerant tank 10 ... -Second heat exchanger 11 ... Heat pump unit (heat collecting means) S1, S2 ... Hot water supply device
Claims (1)
しくは水より高い性質の熱媒を流す循環配管を介して接
続するとともに、前記循環配管のうち集熱手段から貯湯
槽側へ熱媒が流れる配管の少なくとも一部を、沸点が水
と同等もしくは水より低い性質の冷媒で冷却するように
構成したことを特徴とする給湯装置。1. The heat collecting means and the hot water storage tank are connected via a circulation pipe through which a heat medium having a boiling point equal to or higher than that of water flows, and the heat collecting means is connected to the hot water storage tank side of the circulation pipe. A water heater characterized in that at least a part of a pipe through which a heat medium flows is cooled by a refrigerant having a boiling point equal to or lower than that of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6207155A JPH0875271A (en) | 1994-08-31 | 1994-08-31 | Hot water feeding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6207155A JPH0875271A (en) | 1994-08-31 | 1994-08-31 | Hot water feeding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0875271A true JPH0875271A (en) | 1996-03-19 |
Family
ID=16535143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6207155A Withdrawn JPH0875271A (en) | 1994-08-31 | 1994-08-31 | Hot water feeding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0875271A (en) |
-
1994
- 1994-08-31 JP JP6207155A patent/JPH0875271A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20050126 |