JP2004124425A - Recovery system for water before boiled - Google Patents

Recovery system for water before boiled Download PDF

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Publication number
JP2004124425A
JP2004124425A JP2002287321A JP2002287321A JP2004124425A JP 2004124425 A JP2004124425 A JP 2004124425A JP 2002287321 A JP2002287321 A JP 2002287321A JP 2002287321 A JP2002287321 A JP 2002287321A JP 2004124425 A JP2004124425 A JP 2004124425A
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JP
Japan
Prior art keywords
water
hot water
faucet
pipe
hot
Prior art date
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Application number
JP2002287321A
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Japanese (ja)
Inventor
Tomohiro Nakamura
中村 知広
Masashi Okabe
岡部 優志
Masakatsu Sakamoto
坂本 正勝
Takamitsu Ejima
江嶋 孝光
Bunji Kamimura
上村 分二
Koichi Tanaka
田中 幸一
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.)
Sekisui Chemical Co Ltd
Sekisui Kanzai Technics KK
Original Assignee
Sekisui Chemical Co Ltd
Sekisui Kanzai Technics KK
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Priority to JP2002287321A priority Critical patent/JP2004124425A/en
Publication of JP2004124425A publication Critical patent/JP2004124425A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a recovery system for the reuse of water before boiled capable of recovering water remaining in a pipe passage when starting the supply of hot water and drained without being used conventionally, providing hot water of a desired temperature quickly when opening a water tap first to take a bath and shower and cooking in the winter, and preventing a user from having uncomfortable feeling. <P>SOLUTION: A hot-water supply pipe 1 piped from a hot-water supply device 6 and connected with the water tap 21 for supplying hot water is branched into two flow passages in a branched pipe 2 for water tap and a branched pipe 3 for water recovery immediately in front of the water tap 21. An opening and closing valve 4 is provided in the branched pipe 3 for water recovery to lead water into a recovery water storage tank 7. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、給湯器から供給される湯水を使用する際、水栓開から適温の湯となるまでの低温の湯待ち水を回収するシステムに関する。
【0002】
【従来の技術】
通常の給湯装置は、給湯器に給湯管が接続され、この給湯管の先端に水栓が設けられた構造になっており、給湯器で加熱した湯水は、水栓へ一方的に供給されるようになっている。即ち、従来の給湯装置では、上記配管構造のため、給湯開始時又は湯使用を一時停止した後の再開時には、管路内に溜まった水又は低温の湯が完全に出きるるまでは、必要な温度の湯が水栓から出てこなかった。そのため、シャワー入浴や冬季の炊事などの時には、管路内の滞留水は全てそのまま利用されることなく排水されている。
【0003】
このような、水栓を開栓してから適温の湯が出湯するまでの時間を短縮し、利用されずに排水される水の量を減じる為に、加熱された湯が流入する入湯部と出湯端末につながる出湯部とを結ぶ給湯管と、入湯管から分岐して他方端末が出湯端末につながる戻り管と、給湯管と戻り管との間で湯を循環させるための循環駆動手段と、給湯管と戻り管との間を循環する湯を加熱するための保温手段とを備え、入湯側を熱源部に接続して使用される即湯ユニットが提案されている。(例えば、特許文献1参照。)
【0004】
この即湯ユニットは、循環駆動手段により給湯管と戻り管の間で湯を循環させ保温手段により加熱する即湯運転中に、熱源器側から出湯端末使用検出信号を受け取ると循環駆動手段を停止させる制御手段を有するものである。また、この即湯ユニットの保温手段には電気ヒーターを使用しており、即湯スイッチONとともに循環及び加熱を開始して、循環配管内の滞留水を加熱して適温としている。この即湯ユニットは、出湯端末で湯を使用中、一時的に湯の使用を停止し再び使用する場合に、給湯管内の滞留水が保温されていて出湯端末開栓とほぼ同時に所望の温度の湯が使用可能となるものである。
【0005】
【特許文献1】特開平2000−18625号公報
【0006】
【発明が解決しようとする課題】
しかしながら、この即湯ユニットでは、最初に湯を使用する場合には、循環配管内の水は加熱されておらず、即湯スイッチをONにしても、循環水の加熱が電気ヒーターであってこのヒーターの目的が滞留水の保温であり、従って循環配管中の滞留水を所望の温度まで加熱するには多くの時間が掛かっていた。従って、この即湯ユニットの場合は、最初に湯を使う場合は、給湯器から供給される湯は十分に高温の湯であるが、循環配管に残留している水が冷水のままであるために、初流は適温になるまでに時間が多く掛かり、しかもその間の適温以下の水は廃棄されていた。
【0007】
本発明では、従来利用されることなく排水されていた、給湯開始時における管路内の滞留水を回収して再利用でき、かつシャワー入浴時や冬季の炊事等の時、最初に水栓をひねった時に速やかに所望の温度の湯が出て、不快感を与えることがない、湯待ち水の回収システムを提供することを目的としている。
【0008】
【課題を解決するための手段】
本発明の湯待ち水の回収システムは、給湯器から配管され給湯用水栓に接続される給湯管が、該水栓の直前で、水栓用分岐管と水回収用分岐管との二つの流路に分岐され、水回収用分岐管に開閉弁が設けられて回収水貯留タンクに導かれることを特徴とする湯待ち水の回収システムである。
【0009】
上記二つの流路の分岐が、分岐部に設けられた流路切替弁で行われ、水回収用分岐管が回収水貯留タンクに導かれる用にされていても良い。
【0010】
この場合では、上記二つの流路の分岐が、分岐部に設けられた流路切替弁で行われ、水回収用分岐管が回収水貯留タンクに導かれるので、水栓を開としたままでも、切替弁の流路切替のみで給湯器が作動し、給湯管に湯が供給されて給湯管中の滞留水(湯待ち水)は回収水貯留タンクに回収される。切替弁まで湯が来たら流路を水栓側に切り替えると、切替弁から水栓の間に残っている水は、分岐点から開閉弁までの分だけ発明1の場合よりも更に少量であるから、回収できる水量は更に多くなる。
【0011】
上記二つの流路の分岐が、流路切替弁付き給湯用水栓で行われ、水回収用分岐管が回収水貯留タンクに導かれる用にされていても良い。
【0012】
この場合では、上記二つの流路の分岐が、流路切替弁付き給湯用水栓で行われ、水回収用分岐管が回収水貯留タンクに導かれるので、流路分岐部から水栓先端までに残っている水の量が更に少なくなり、回収される湯待ち水の量がその分だけ多く回収水貯留タンクに回収できる。
【0013】
更に、上記二つの流路の分岐点に、その水温を測定する水温計の温度検出端子が設けられ、その水温を確認できる用にされていても良い。
【0014】
この場合では、上記二つの流路の分岐点に、その水温を測定する水温計の温度検出端子が設けられ、その水温を確認できるので、適温となったかどうかを容易に確認でき、弁の切替が確実に行えて湯待ち水を回収水貯留タンクに回収できる。
【0015】
上記開閉弁の開閉、又は流路切替弁の流路切替え、又は流路切替弁付き給湯用水栓の流路切替えが、上記温度計の温度検出端子で検知された温度が所定の温度と比較して高い場合は水栓用分岐管側に、低い場合は水回収用分岐管側に流路が切替わるよう制御され、制御が制御系の作動スイッチで起動されるようにされていても良い。
【0016】
この場合では、上記開閉弁の開閉、又は流路切替弁の流路切替え、又は流路切替弁付き給湯用水栓の流路切替えが、上記温度計の温度検出端子で検知された温度が所定の温度と比較して高い場合は水栓用分岐管側に、低い場合は水回収用分岐管側に流路が切替わるよう制御され、制御が、制御系の作動スイッチで起動されるので、作動スイッチをONにして制御系を作動させると、適温の水になったら自動的に流路の切替が行われ、切替の手間が掛からずに湯待ち水を回収水貯留タンクに回収できる。
【0017】
更に、開閉弁がサーモスタットによる自己開閉動作を行うようにされていても良い。
【0018】
この場合では、開閉弁がサーモスタットによる自己開閉動作、若しくは、流路切替弁又は流路切替弁付き給湯用水栓が、それぞれサーモスタットによる流路の自己切替え動作を行うので、温度計を用いずに、適温の水になったら自動的に流路の切替が行われ、切替の手間が掛からずに湯待ち水を回収水貯留タンクに回収できる。
【0019】
上記流路切替弁又は流路切替弁付き給湯用水栓が、それぞれサーモスタットによる流路の自己切替え動作を行うようにされていても良い。
【0020】
(作用)
本発明では、給湯器から配管され給湯用水栓に接続される給湯管が、該水栓の直前で、水栓用分岐管と水回収用分岐管との二つの流路に分岐され、水回収用分岐管に開閉弁が設けられて回収水貯留タンクに導かれるので、開閉弁を開として給湯器を作動させて湯を給湯管に通すと、給湯管中の滞留水湯(待ち水)を回収水貯留タンクに回収される。分岐点まで湯が来たら水栓を開とし、開閉弁を閉とすると、分岐点から水栓の間に残っている水は少量であるから、水栓からは速やかに適温の湯が出る。
【0021】
【発明の実施の形態】
次に図面を参照して本発明を説明する。図1は本発明1の湯待ち水の回収システムの一例の配管図である。
【0022】
本発明の水回収システムに適用される配管材料や部材等は、一般的な給湯管及び継ぎ手等部材であり、例えば、架橋ポリエチレン管、ポリブテン管、耐熱塩化ビニル樹脂、内面耐熱塩化ビニル樹脂ライニング金属管、アルミニウム複合樹脂管、ステンレススチール管、銅管等が挙げられる。
【0023】
配管接続等は、上記材料に適した一般的な方法で実施されれば良く、特に限定されない。
【0024】
本発明に用いられる給湯器6は、先止め式瞬間湯沸かし器、電気温水器等、水栓を開とすることで、給湯されるものであれば特に限定されず、使用される加熱源もガス類、石油類、電気等特に限定されない。
【0025】
先止め式ガス瞬間湯沸かし器(給湯器)6から給湯管1が配管され、水栓21の手前で水栓用分岐管2と水回収用分岐管3との二つの流路に分岐されている。水回収用分岐管3には、分岐点近傍に開閉弁4が設けられ、回収水貯留タンク7に導かれている。
【0026】
上記配管により、水回収用分岐管3の開閉弁4を開とすることにより、給湯器6の上流側に水圧が掛かっているので給湯管1内に水流が起こり、給湯管1中に貯留している水が回収水貯留タンク7へ押し出されて排出されると同時に、給湯器1が水流を検知して着火し、湯の供給を開始する。分岐部まで湯が来たら、水回収用分岐管3の開閉栓4を閉じる。
【0027】
この状態で給湯管1内の滞留水は、分岐部から水栓21迄の水栓用分岐管2内及び水栓21内の水のみとなり、少量であるので、次に水栓21を開ければ、ほとんど待ち時間なく、直ぐに所望の温度の湯が出る。
【0028】
二つの流路の分岐は、通常の分岐継ぎ手であるが、図2(a)に示されるような給湯管1から流入した湯水を水栓側分岐管2と水回収側分岐管3との二方向の流路に分岐して流出させる三方切替弁51、又は、図2(b)に示されるような給湯管1から流入した湯水を水栓側分岐管2と水回収側分岐管3と次の水栓への給湯管の三方向の流路に分岐して流出させる四方切替弁52等であっても良い。更に、図3に示されるような切替弁付き水栓53とされていても良い。いずれも回収システムを組む管路構成により、適宜適当なものを選択して使用されれば良い。
【0029】
開閉弁4や切替弁51,52、53は、その開閉動作や切替動作を、給湯管を手で触って温度変化を確認して、手動により開閉や切り替えをおこなって流路を変えれば良い。例えば、三方切替弁51、52や切替弁付き水栓53等では、それぞれに取り付けられたハンドル511や531で弁軸を回すことで流路の切り替えを行えばよい。なお、開閉弁4及び四方切替弁52も同様であるので、図面上は記載を省略してある。
【0030】
又、ハンドルの代わりに電磁石やモーター等動力を用いて弁軸を回転させて開閉や切り替えを行う電磁弁や電動弁、又はバイメタルを組み込んで所定の温度でバイメタルの姿勢が変化することを利用して自己動作で開閉や切り替えを行う弁を利用しても良い。これら手動切替以外のものでは、設定された温度になれば自動的に流路が変わるので、流路切り替えのために、人が弁の近くにいる必要がなく、作業が楽になる。
【0031】
温度検知装置(図示せず)としては、アルコール温度計や感熱インクによる表示等、水温の変化を目視確認できるものでも良く、自動で流路を変える場合には、熱電対等検出端子を有し、温度表示装置と希望温度の変更装置とその温度で信号を発信する発信装置とを組み込まれた温度計が用いられれば良い。
【0032】
温度検出端子の取り付け場所は、水栓21が閉とされている時に滞留水とならない箇所とされる。例えば、流路の分岐点が好適である。但し、分岐点が切替弁や切替弁付き水栓である場合は、温度検出端子組込型の弁や水栓とされることが望ましいが、不可能である場合は、弁や水栓の直前又は直後のいずれかに取り付けられれば良い。
【0033】
このような流路の自動開閉、又は自動切り替えは、一般的な制御回路として制御ユニット(図示せず)に組み込まれる。即ち、例えば、熱電対型温度検出端子からの信号を受けて温度を指示すると共に、所望の温度で切替弁51,52、53の流路を切り替えるための電気作動部を作動させる信号を出力する温度計を組み込まれた制御回路である。この制御回路は、電源スイッチと必要があればリレー等と共に制御ボックス(図示せず)に格納されている。
【0034】
なお、制御回路の電源スイッチをOFFとしてある場合は、水流の有無に関わらず、開閉弁4は閉、又は切替弁51、52、53は水栓用分岐管2側の流路となるようにされている。
【0035】
【発明の効果】
本発明により、給湯待ち時間の捨て水を回収して貯留し、例えばトイレ水洗水や庭等への散水等など、中水用途に利用することで、水資源の有効利用をはかることができる。又、シャワー入浴時や冬季の炊事等の時、水栓をひねると速やかに所望の温度の湯が出るので、不快感を与えることがない、湯待ち水の回収システムとなるのである。
【0036】
更に、回収水貯留タンクへの水回収分岐管途中に積算流量計等を設け日々確認できるようにすれば、節水量が体感できて節水、省エネルギーの意識がより一層高揚される。
【図面の簡単な説明】
【図1】本発明の湯待ち水の回収システムの一例の配管図である。
【図2】(a) 分岐点が三方切替弁である一例の部分説明図である。
(b) 分岐点が四方切替弁である一例の部分説明図である。
【図3】分岐点が切替弁付き水洗である一例の部分説明図である。
【符号の説明】
1 給湯管
2 水栓用分岐管
21 水栓
3 水回収用分岐管
4 開閉弁
51、52、53 切替弁
511、531 ハンドル
6 給湯器
7 回収水貯留タンク
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a system for recovering low-temperature hot water from the opening of a water faucet to a proper temperature when using hot water supplied from a water heater.
[0002]
[Prior art]
A normal hot water supply device has a structure in which a hot water supply pipe is connected to a hot water supply apparatus and a faucet is provided at a tip of the hot water supply pipe. Hot water heated by the hot water supply apparatus is unilaterally supplied to the faucet. It has become. That is, in the conventional hot water supply device, the above-described piping structure requires the hot water or the low-temperature hot water accumulated in the pipeline to be completely discharged at the time of starting hot water supply or resuming after temporarily stopping the use of hot water. Hot water of the right temperature did not come out of the faucet. Therefore, at the time of shower bathing, cooking in winter, etc., all the water remaining in the pipeline is drained without being used as it is.
[0003]
In order to shorten the time from opening the faucet to tapping the hot water at the appropriate temperature, and to reduce the amount of water drained without being used, a hot water inlet into which heated hot water flows A hot water supply pipe that connects a hot water supply unit to a hot water supply terminal, a return pipe that branches off from the hot water supply pipe and has the other terminal connected to the hot water supply terminal, and circulation driving means for circulating hot water between the hot water supply pipe and the return pipe, There has been proposed an instant hot water unit that includes a heat retaining means for heating hot water circulating between a hot water supply pipe and a return pipe, and is used by connecting a hot water supply side to a heat source unit. (For example, refer to Patent Document 1.)
[0004]
This hot water unit stops the circulation driving means when receiving a hot water terminal use detection signal from the heat source unit during the hot water operation in which hot water is circulated between the hot water supply pipe and the return pipe by the circulation driving means and heated by the heat retaining means. Control means for causing the In addition, an electric heater is used as a heat retaining means of the instant hot water unit, so that circulation and heating are started when the instant hot water switch is turned on, and the accumulated water in the circulation pipe is heated to an appropriate temperature. This hot water unit, when using hot water at the hot water supply terminal, temporarily stops using hot water and uses it again when the hot water stays in the hot water supply pipe is kept warm and the desired temperature is almost at the same time as the hot water supply terminal is opened. Hot water can be used.
[0005]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2000-18625
[Problems to be solved by the invention]
However, in this instant hot water unit, when hot water is used for the first time, the water in the circulation pipe is not heated, and even if the instant hot water switch is turned on, the heating of the circulating water is performed by the electric heater. The purpose of the heater was to keep the retained water warm, and it took a lot of time to heat the retained water in the circulation pipe to a desired temperature. Therefore, in the case of this hot water unit, when hot water is used for the first time, the hot water supplied from the water heater is sufficiently hot water, but the water remaining in the circulation pipe remains cold water. In addition, it took a long time for the first stream to reach an appropriate temperature, and water below the appropriate temperature during that time was discarded.
[0007]
In the present invention, the water remaining in the pipeline at the start of hot water supply, which has been drained without being used conventionally, can be collected and reused, and at the time of shower bathing or cooking in winter, etc. It is an object of the present invention to provide a hot water waiting water recovery system in which hot water of a desired temperature is quickly discharged when twisted, and does not cause discomfort.
[0008]
[Means for Solving the Problems]
In the hot water waiting water recovery system of the present invention, the hot water supply pipe connected to the hot water supply faucet and connected to the hot water faucet is provided with two flows of the faucet branch pipe and the water recovery branch pipe immediately before the faucet. A hot water waiting water recovery system characterized by being branched into a path, provided with an on-off valve in a water recovery branch pipe, and guided to a recovered water storage tank.
[0009]
The branching of the two flow paths may be performed by a flow path switching valve provided at the branch part, and the branch pipe for water recovery may be guided to a recovered water storage tank.
[0010]
In this case, branching of the two flow paths is performed by a flow path switching valve provided in the branch part, and the branch pipe for water recovery is guided to the recovered water storage tank. The hot water supply is operated only by switching the flow path of the switching valve, hot water is supplied to the hot water supply pipe, and the stagnant water (hot water waiting water) in the hot water supply pipe is recovered in the recovered water storage tank. When the hot water comes to the switching valve, the flow path is switched to the faucet side, and the amount of water remaining between the switching valve and the faucet is smaller than that of the first invention by the amount from the branch point to the on-off valve. Therefore, the amount of water that can be recovered further increases.
[0011]
The branching of the two flow paths may be performed by a hot water supply faucet with a flow path switching valve, and the branch pipe for water recovery may be guided to a recovered water storage tank.
[0012]
In this case, the branching of the two flow paths is performed by a hot water tap with a flow path switching valve, and the branch pipe for water recovery is guided to the recovered water storage tank. The amount of remaining water is further reduced, and the amount of hot water waiting water to be recovered is increased by that much and can be recovered in the recovered water storage tank.
[0013]
Further, a temperature detecting terminal of a water thermometer for measuring the water temperature may be provided at a branch point of the two flow paths so that the water temperature can be checked.
[0014]
In this case, a temperature detecting terminal of a water thermometer for measuring the water temperature is provided at a branch point of the two flow paths, and the temperature of the water can be checked. And the hot water can be recovered in the recovered water storage tank.
[0015]
The temperature detected at the temperature detection terminal of the thermometer is compared with a predetermined temperature when opening and closing the on-off valve, or switching the flow path of the flow path switching valve, or switching the flow path of the hot water tap with the flow path switching valve. The flow path may be controlled to be switched to the faucet branch pipe side when it is high and to the water recovery branch pipe side when it is low, and the control may be activated by an operation switch of the control system.
[0016]
In this case, the temperature detected by the temperature detection terminal of the thermometer is determined by the opening / closing of the on-off valve, the flow path switching of the flow path switching valve, or the flow path switching of the hot water tap with the flow path switching valve. When the temperature is higher than the temperature, the flow path is controlled to be switched to the faucet branch pipe side, and when the temperature is lower than the temperature, the flow is switched to the water recovery branch pipe side, and the control is activated by an operation switch of the control system. When the switch is turned on and the control system is operated, the flow path is automatically switched when the temperature of the water reaches an appropriate temperature, and the hot water can be recovered in the recovered water storage tank without any trouble of switching.
[0017]
Further, the on-off valve may perform a self-opening / closing operation by a thermostat.
[0018]
In this case, since the on-off valve performs a self-opening / closing operation using a thermostat, or a flow path switching valve or a hot water tap with a flow path switching valve performs a self-switching operation of the flow path using a thermostat, respectively, without using a thermometer. When the water reaches a suitable temperature, the flow path is automatically switched, and the hot water can be recovered in the recovered water storage tank without any trouble of switching.
[0019]
Each of the flow path switching valve and the hot water tap with a flow path switching valve may perform a self-switching operation of the flow path by a thermostat.
[0020]
(Action)
According to the present invention, a hot water supply pipe connected from a water heater to a hot water faucet is branched into two flow paths, a water faucet branch pipe and a water recovery branch pipe, immediately before the water faucet. An open / close valve is provided on the branch pipe for water and guided to the recovered water storage tank. When the open / close valve is opened and the water heater is operated to pass hot water through the hot water pipe, the accumulated hot water (waiting water) in the hot water pipe is removed. Collected in the recovered water storage tank. When hot water reaches the branch point, the faucet is opened and the on-off valve is closed. Since a small amount of water remains between the faucet and the faucet, hot water of an appropriate temperature is quickly discharged from the faucet.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, the present invention will be described with reference to the drawings. FIG. 1 is a piping diagram of an example of the hot water waiting water recovery system of the first invention.
[0022]
The piping materials and members and the like applied to the water recovery system of the present invention are general hot water supply pipes and fittings and other members, for example, cross-linked polyethylene pipes, polybutene pipes, heat-resistant vinyl chloride resin, inner heat-resistant vinyl chloride resin lining metal Tube, aluminum composite resin tube, stainless steel tube, copper tube and the like.
[0023]
The pipe connection or the like may be performed by a general method suitable for the above-mentioned materials, and is not particularly limited.
[0024]
The water heater 6 used in the present invention is not particularly limited as long as hot water is supplied by opening a water faucet, such as a stop-on instantaneous water heater, an electric water heater, etc. , Petroleum, electricity, etc. are not particularly limited.
[0025]
A hot water supply pipe 1 is piped from a first stop gas instantaneous water heater (water heater) 6, and is branched into two flow paths of a water faucet branch pipe 2 and a water recovery branch pipe 3 just before a water faucet 21. The water recovery branch pipe 3 is provided with an on-off valve 4 near the branch point, and is led to a recovered water storage tank 7.
[0026]
By opening the on-off valve 4 of the water recovery branch pipe 3 with the above-mentioned piping, water pressure is applied to the upstream side of the hot water supply device 6, so that a water flow occurs in the hot water supply pipe 1 and is stored in the hot water supply pipe 1. At the same time as the discharged water is pushed out to the recovered water storage tank 7 and discharged, the water heater 1 detects the water flow, ignites, and starts supplying hot water. When the hot water reaches the branch, the open / close plug 4 of the water recovery branch pipe 3 is closed.
[0027]
In this state, the remaining water in the hot water supply pipe 1 is only water in the faucet branch pipe 2 from the branch portion to the faucet 21 and in the faucet 21, and is small. The hot water of the desired temperature comes out immediately with almost no waiting time.
[0028]
The branch of the two flow paths is a normal branch joint, but the hot water flowing from the hot water supply pipe 1 as shown in FIG. 2A is divided into a water faucet side branch pipe 2 and a water recovery side branch pipe 3. The hot water supplied from the three-way switching valve 51 which branches off to the flow path in the direction or the hot water supplied from the hot water supply pipe 1 as shown in FIG. A four-way switching valve 52 or the like that branches into a three-way flow path of a hot water supply pipe to a water faucet and flows out. Further, a faucet 53 with a switching valve as shown in FIG. 3 may be used. In any case, an appropriate one may be appropriately selected and used depending on the configuration of the pipeline in which the recovery system is assembled.
[0029]
The on-off valve 4 and the switching valves 51, 52, and 53 may be operated by opening and closing or switching manually by checking the temperature change by touching the hot water supply pipe with the hand and changing the flow path manually. For example, in the case of the three-way switching valves 51 and 52 and the faucet 53 with the switching valve, the flow path may be switched by turning the valve shaft with the handle 511 or 531 attached to each. The on-off valve 4 and the four-way switching valve 52 are the same, and are not shown in the drawings.
[0030]
Also, instead of using a handle, an electromagnetic valve or a motor-operated valve that opens and closes or switches by rotating the valve shaft using power such as an electromagnet or motor, or a bimetal is incorporated to take advantage of the fact that the posture of the bimetal changes at a predetermined temperature. Alternatively, a valve that opens and closes or switches by itself may be used. In other than the manual switching, the flow path is automatically changed when the set temperature is reached, so that there is no need for a person to be close to the valve for the flow path switching, and the operation becomes easier.
[0031]
As the temperature detecting device (not shown), a device that can visually confirm a change in water temperature, such as an alcohol thermometer or a display using a thermal ink, may be used. A thermometer incorporating a temperature display device, a device for changing a desired temperature, and a transmitting device for transmitting a signal based on the temperature may be used.
[0032]
The mounting location of the temperature detection terminal is a location that does not become stagnant water when the faucet 21 is closed. For example, a branch point of the flow path is preferable. However, if the branch point is a switching valve or a faucet with a switching valve, it is desirable to use a valve or faucet with a built-in temperature detection terminal, but if this is not possible, immediately before the valve or faucet Or, it may be attached to either immediately after.
[0033]
Such automatic opening / closing or automatic switching of the flow path is incorporated in a control unit (not shown) as a general control circuit. That is, for example, a signal is received from a thermocouple-type temperature detection terminal to indicate a temperature, and a signal for operating an electric operation unit for switching the flow paths of the switching valves 51, 52, and 53 at a desired temperature is output. This is a control circuit incorporating a thermometer. This control circuit is stored in a control box (not shown) together with a power switch and, if necessary, a relay.
[0034]
When the power switch of the control circuit is turned off, the open / close valve 4 is closed or the switching valves 51, 52, 53 are connected to the faucet branch pipe 2 side regardless of the presence or absence of water flow. Have been.
[0035]
【The invention's effect】
Advantageous Effects of Invention According to the present invention, water resources can be effectively used by collecting and storing waste water during a hot water supply waiting time and using it for medium water use, for example, for flushing toilets or watering gardens. In addition, when the shower is turned on or when cooking in winter, etc., turning on the faucet quickly produces hot water at a desired temperature, so that there is no uncomfortable feeling and a hot water waiting water collecting system is provided.
[0036]
Furthermore, if an integrating flow meter or the like is provided in the middle of the water recovery branch pipe to the recovered water storage tank so that it can be checked every day, the amount of water saving can be experienced and the awareness of water saving and energy saving can be further enhanced.
[Brief description of the drawings]
FIG. 1 is a piping diagram of an example of a hot water waiting water recovery system of the present invention.
FIG. 2A is a partial explanatory view of an example in which a branch point is a three-way switching valve.
(B) It is a partial explanatory view of an example in which a branch point is a four-way switching valve.
FIG. 3 is a partial explanatory view of an example in which a branch point is flush with a switching valve.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 hot water supply pipe 2 branch pipe for faucet 21 faucet 3 branch pipe for water recovery 4 on-off valves 51, 52, 53 switching valves 511, 531 handle 6 water heater 7 recovered water storage tank

Claims (1)

給湯器から配管され給湯用水栓に接続される給湯管が、該水栓の直前で、水栓用分岐管と水回収用分岐管との二つの流路に分岐され、水回収用分岐管に開閉弁が設けられて回収水貯留タンクに導かれることを特徴とする湯待ち水の回収システム。A hot water pipe that is piped from the water heater and connected to a hot water faucet is branched into two flow paths, a faucet branch pipe and a water recovery branch pipe, immediately before the faucet. A hot water waiting water recovery system, wherein an on-off valve is provided and guided to a recovered water storage tank.
JP2002287321A 2002-09-30 2002-09-30 Recovery system for water before boiled Withdrawn JP2004124425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002287321A JP2004124425A (en) 2002-09-30 2002-09-30 Recovery system for water before boiled

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002287321A JP2004124425A (en) 2002-09-30 2002-09-30 Recovery system for water before boiled

Publications (1)

Publication Number Publication Date
JP2004124425A true JP2004124425A (en) 2004-04-22

Family

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JP2002287321A Withdrawn JP2004124425A (en) 2002-09-30 2002-09-30 Recovery system for water before boiled

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113950597A (en) * 2019-02-01 2022-01-18 因维兰西亚有限责任公司 Device and method for managing a hot water supply

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113950597A (en) * 2019-02-01 2022-01-18 因维兰西亚有限责任公司 Device and method for managing a hot water supply

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