JPH0198835A - Hot water feed device - Google Patents

Abstract

PURPOSE:To eliminate a risk of hot water flowing over a delivery port except a using delivery port and to feed an amount of hot water in a desired state to a plurality of hot water feed spots through one action, by a method wherein a switching valve is driven, and a flow rate valve is controlled to start the feed of hot water. CONSTITUTION:When the feed of hot water is instructed by a setter 31, a switching valve 29 is controlled to a set delivery spot, and after completion of switching, through drive of a flow rate valve 27, the feed of hot water is started. When a flow rate detected by a flow rate detector 24 exceeds a specified amount, temperature is controlled by means of a mixing unit 26. In the case of the starting of the feed of hot water, since a device is formed such that after the switching valve 29 is controlled to a desired delivery port, the flow rate valve 27 is opened, during the starting of the feed of hot water, a risk of hot water flowing through a delivery port except the set delivery port is eliminated, and safety is ensured. Hot water feed can be instructed to a plurality of hot water feed spots through one action, and facility is improved.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、高温の湯と水を混合して所望する温度を得る
湯水混合の給湯装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water heater for mixing hot water and cold water to obtain a desired temperature by mixing hot water and water.

従来の技術 従来のこの種の給湯装置には第２図に示すようなものが
あった。（例えば実開昭６１−１８４２４号公報） 第２図において、水道１は２系統に分岐され、給湯機２
を経た給湯管路３と、給水管路４とが定温給湯装置５に
接続されている。定温給湯装置５の内部では、給湯管路
３に湯量弁６が、また給水管路４に水量弁７が接続され
ており混合比を調節している。混合管路８には、混合湯
温を検出するサーミスタ９が設けられており、このサー
ミスタ９の信号と混合湯温を任意に調節するコントロー
ラ１０の信号に基づき、制御装置１１で湯量弁６と水量
弁７が制御される。混合湯は混合管路８の端末に設けた
吐出口の蛇口１２を経て、給湯対象である浴槽１３に供
給される。ｉｔ弁６と水量弁７は制御装置１１より制御
される湯量弁モータ１４と水量弁モータ１５により駆動
され、サーミスタ９の信号でフィードバック制御するも
のである。2. Description of the Related Art A conventional water heater of this kind is shown in FIG. (For example, Japanese Utility Model Publication No. 61-18424) In Figure 2, water supply 1 is branched into two systems, and water heater 2
A hot water supply pipe 3 and a water supply pipe 4 are connected to a constant temperature water heater 5. Inside the constant temperature water heater 5, a hot water flow valve 6 is connected to the hot water supply pipe 3, and a water flow valve 7 is connected to the water supply pipe 4 to adjust the mixing ratio. The mixing pipe 8 is provided with a thermistor 9 that detects the temperature of the mixed water.Based on the signal from the thermistor 9 and the signal from the controller 10 that arbitrarily adjusts the temperature of the mixed water, the control device 11 operates the water flow valve 6 and the water flow valve 6. Water flow valve 7 is controlled. The mixed hot water passes through a discharge outlet faucet 12 provided at the end of the mixing pipe 8 and is supplied to a bathtub 13 to which hot water is to be supplied. The IT valve 6 and the water flow valve 7 are driven by a hot water flow valve motor 14 and a water flow valve motor 15 that are controlled by a control device 11, and are feedback-controlled by a signal from a thermistor 9.

発明が解決しようとする問題点 しかしながら上記のような従来の構成では、給湯装置と
、吐出口は１対１でしかなく、複数の吐出口に対応する
ものではない。また、吐出口である蛇口１２のところへ
シャワーと切替える切替弁を設けた場合、しかも電気的
な切替弁を設けた場合に次のような問題が生じることが
ある。一方の吐出口から出湯を指示した場合で、切替弁
が他方の吐出口を選択していたときは、いきなり出湯さ
せると指示している吐出口とは別の吐出口から若干出湯
してしまうことがあり、危険な場合がある。Problems to be Solved by the Invention However, in the conventional configuration as described above, there is only a one-to-one relationship between the hot water supply device and the discharge port, and the water heater does not correspond to a plurality of discharge ports. Further, when a switching valve for switching between shower and shower is provided at the faucet 12, which is a discharge port, and in addition, when an electrical switching valve is provided, the following problem may occur. If hot water is instructed to be discharged from one outlet and the switching valve selects the other outlet, if the hot water is suddenly dispensed, some hot water may be dispensed from a different outlet than the one instructed. and can be dangerous.

そこで本発明の給湯装置は、複数の吐出先に対応し、使
い勝手の面から危険のないよう、安全快適な給湯装置を
提供することを目的とする。Therefore, it is an object of the present invention to provide a safe and comfortable water heater that can accommodate a plurality of discharge destinations and is user-friendly without any danger.

問題点を解決するための手段 上記問題点を解決するために、本発明の給湯装置は、高
温湯を供給する給湯管と、水を供給する給水管と、前記
給湯管と前記給水管の湯と水を混合して所望する温度の
混合湯を得る混合弁と、前記混合弁を電気的ｔこ駆動す
る混合弁駆動装置とで構成する混合ユニットと、前記混
合ユニットから延びる混合湯管と、前記混合湯管から送
られる混合湯の出湯・停止及び流量を調節する流量弁と
、前記流量弁を電気的に駆動する流量弁駆動装置と、前
記流量弁の下流に設け、複数の吐出口に対して出湯先を
電気的に選択する切替弁と、前記切替弁を電気的に駆動
する切言弁駆動装置と、混合湯の温度・流量・前記吐出
口を設定する少なくとも一つの設定器と、前記設定器の
信号より前記混合ユニット、前記流量弁、前記切替弁を
制御し、出湯を指示した場合設定した前記吐出口から出
湯するように前記切替弁を駆動した後、前記流量弁を駆
動し出島開始するように制御する制御器とからなる。Means for Solving the Problems In order to solve the above-mentioned problems, the water heater of the present invention has a hot water supply pipe that supplies high-temperature hot water, a water supply pipe that supplies water, and a water supply pipe that supplies hot water to the hot water supply pipe and the hot water supply pipe. a mixing unit comprising a mixing valve for mixing water and water to obtain mixed hot water at a desired temperature, and a mixing valve driving device for electrically driving the mixing valve; a mixing hot water pipe extending from the mixing unit; a flow valve that adjusts the output, stop, and flow rate of the mixed hot water sent from the mixing hot water pipe; a flow valve drive device that electrically drives the flow valve; a switching valve that electrically selects the outlet of hot water; a switching valve drive device that electrically drives the switching valve; at least one setting device that sets the temperature, flow rate, and discharge port of the mixed hot water; The mixing unit, the flow rate valve, and the switching valve are controlled by the signal from the setting device, and when hot water is instructed to be discharged, the switching valve is driven so that hot water is discharged from the set discharge port, and then the flow rate valve is driven. and a controller to control the start.

作　　用 以上の構成により、設定器で出湯を指示すると、指示さ
れた吐出口へ切替弁が切替わり、その後、流量弁が開成
される。出湯が始まると、制御器は、混合ユニットを制
御し、設定器で設定した温度に合わせて混合弁を制御し
、設定温度と出湯温度を等しくなるように制御するもの
である。Operation With the above configuration, when hot water is instructed to be dispensed using the setting device, the switching valve is switched to the instructed discharge port, and then the flow rate valve is opened. When hot water starts to be tapped, the controller controls the mixing unit, controls the mixing valve in accordance with the temperature set by the setting device, and controls the set temperature and the tapped hot water temperature to be equal.

実施例 本発明における給湯装置の一実施例を添付図面に基づい
て説明する。Embodiment An embodiment of the water heater according to the present invention will be described with reference to the accompanying drawings.

第１図において、高温湯を供給する給湯機１６から延び
る給湯管１７と、水を供給する給水管１８と、前記給湯
管１７と給水管１８それぞれに逆止弁１９を設け、その
下流に二つの管（１７゜１８）から送られてくる湯水の
圧力を等しくする等圧化弁２０があり、その後方の混合
弁２１と、この混合弁２１により調節された混合湯が流
出する混合湯管２２に、混合湯の温度を検出する温度検
出器２３と流量を検出する流量検出器２４を設けており
、前記混合弁２１を電気的に駆動する混合弁駆動装置２
５とから構成する混合ユニット２６と、前記混合湯管２
２に、出湯・停止及び流量を調節する流量弁２７と、前
記流量弁２７を電気的に駆動する流量弁駆動装置２８を
設け、前記流量弁２７の下流に設け、複数の吐出先に出
湯を切替える切替弁２９と、前記切替弁２９を電気的に
駆動する切替弁駆動装置３０とから成っている。In FIG. 1, a water supply pipe 17 extending from a water heater 16 that supplies high-temperature hot water, a water supply pipe 18 that supplies water, and check valves 19 are provided in each of the hot water supply pipe 17 and the water supply pipe 18, and two check valves are provided downstream of the water supply pipe 17 and the water supply pipe 18, respectively. There is a pressure equalization valve 20 that equalizes the pressure of hot water sent from two pipes (17° 18), a mixing valve 21 behind it, and a mixing hot water pipe from which the mixed hot water regulated by this mixing valve 21 flows out. 22 is provided with a temperature detector 23 for detecting the temperature of the mixed hot water and a flow rate detector 24 for detecting the flow rate, and the mixing valve driving device 2 electrically drives the mixing valve 21.
5, and the mixing unit 26 consisting of the mixing water pipe 2.
2 is provided with a flow valve 27 that adjusts hot water output/stop and flow rate, and a flow valve drive device 28 that electrically drives the flow valve 27, and is provided downstream of the flow valve 27 to discharge hot water to a plurality of discharge destinations. It consists of a switching valve 29 that switches, and a switching valve drive device 30 that electrically drives the switching valve 29.

浴室内に設けた出湯状態を指示する設定器３１と、前記
設定器３１で設定された温度と温度検出器２３で検出し
た温度が等しくなるように制御器３２は、混合弁駆動装
置２５を制御し、混合弁２１の設定された温度と温度検
出器２３で検出した温度が等しくなるように制御器３２
は、混合弁駆動装置２５を制御し、混合弁２１の弁開度
を調節し、前記設定器３１で指示した吐出先に対して、
流量弁２７及び切替弁２９を制御するものであるが、制
御器３２は、切替弁２９、流量弁２７、混合ユニット２
６の順で憂先制御する。つまり、設定器３１で出湯を指
示すると、まず設定した吐出先へ切替弁２９を制御し、
切替わった後、流量弁２７を駆動して出湯を開始し、流
量検出器２４で検出した流量が規定景を超えた時、混合
ユニット１ｊにより温度制御を行うものである。A controller 32 controls the mixing valve drive device 25 so that the temperature set by the setting device 31 provided in the bathroom and the temperature detected by the temperature detector 23 becomes equal to the temperature set by the setting device 31 and the temperature detected by the temperature detector 23. Then, the controller 32 controls the temperature so that the set temperature of the mixing valve 21 and the temperature detected by the temperature detector 23 are equal.
controls the mixing valve drive device 25, adjusts the valve opening of the mixing valve 21, and controls the discharge destination specified by the setting device 31.
The controller 32 controls the flow rate valve 27 and the switching valve 29.
Perform priority control in the order of 6. In other words, when the setting device 31 instructs hot water to be discharged, the switching valve 29 is first controlled to the set discharge destination.
After switching, the flow rate valve 27 is driven to start dispensing hot water, and when the flow rate detected by the flow rate detector 24 exceeds a specified value, temperature control is performed by the mixing unit 1j.

以上の構成により、出湯開始のときは、所望する吐出口
へ切替弁２９を制御した後、流量弁２７を開く構成のた
め、出湯開始時に、設定した吐出口以外の吐出口から場
が出るという危険はなく、安全である。また、複数の給
湯箇所へ、ワンタッチで出湯指示が可能で使い勝手が向
上している。With the above configuration, when starting hot water dispensing, the flow rate valve 27 is opened after controlling the switching valve 29 to the desired outlet, so that when starting hot water dispensing, water is discharged from the outlet other than the set outlet. There is no danger and it is safe. In addition, it is possible to issue hot water instructions to multiple hot water supply points with a single touch, improving usability.

更に、切替弁２９を、出湯停止時は、弁の動作可能な駆
動範囲の中間位置に保持してやる構成にすると、出湯開
始時に、切替弁の制御する時間が短縮でき、出湯指示か
ら出湯開始するまでのデイレイ時間を節約でき、不便な
く使用できる。Furthermore, if the switching valve 29 is configured to be held at the middle position of the valve's operable drive range when the hot water supply is stopped, the time required to control the switching valve when the hot water tap starts can be shortened, and the time from the hot water tap instruction to the hot water tap start can be shortened. It saves time and can be used without any inconvenience.

発明の効果 以上のように本発明の給湯装置によれば次のような効果
が得られる。Effects of the Invention As described above, the water heater of the present invention provides the following effects.

（１）切替弁を駆動した後、流量弁を制御し出湯を開始
する構成としたため、使用する吐出口以外から湯こぼれ
が生じる危険はなく安全である。(1) After the switching valve is driven, the flow rate valve is controlled to start dispensing hot water, so there is no risk of hot water spilling from any outlet other than the outlet being used, so it is safe.

（２）複数の給湯箇所にワンタッチで、所望する状態量
の湯を得ることができ、使い勝手が向上する。(2) A desired amount of hot water can be obtained at multiple hot water supply points with a single touch, improving usability.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の給湯装置の１実施例を示すブロック構
成図、第２図は従来の給湯装置のブロック構成図である
。 １７・・・・・・給湯管、１Ｂ・・・・・・給水管、２
１・・・・・・混合弁、２２・・・・・・混合湯管、２
５・・・・・・混合弁駆動装置、２６・・・・・・混合
ユニット、２７・・・・・・流量弁、２８・・・・・・
流量弁駆動装置、２９・・・・・・切替弁、３０・・・
・・・切替弁駆動装置、３１・・・・・・設定器、３２
・・・・・・制御器。FIG. 1 is a block diagram showing one embodiment of a water heater according to the present invention, and FIG. 2 is a block diagram of a conventional water heater. 17...Hot water pipe, 1B...Water supply pipe, 2
1...Mixing valve, 22...Mixing hot water pipe, 2
5... Mixing valve drive device, 26... Mixing unit, 27... Flow rate valve, 28...
Flow rate valve drive device, 29...Switching valve, 30...
...Switching valve drive device, 31...Setting device, 32
...controller.

Claims (3)

【特許請求の範囲】[Claims] （１）高温湯を供給する給湯管と、水を供給する給水管
と、前記給湯管と前記給水管の湯と水を混合して所望す
る温度の混合湯を得る混合弁と、前記混合弁を電気的に
駆動する混合弁駆動装置とで構成する混合ユニットと、
前記混合ユニットから延びる混合湯管と、前記混合湯管
から送られる混合湯の出湯・停止及び流量を調節する流
量弁と、前記流量弁を電気的に駆動する流量弁駆動装置
と、前記流量弁の下流に設け、複数の吐出口に対して出
湯先を電気的に選択する切替弁と、前記切替弁を電気的
に駆動する切替弁駆動装置と、混合湯の温度・流量・前
記吐出口を設定する少なくとも一つの設定器と、前記設
定器の信号より前記混合ユニット、前記流量弁、前記切
替弁を制御し、出湯を指示した場合設定した前記吐出口
から出湯するように前記切替弁を駆動した後、前記流量
弁を駆動し出湯開始するように制御する制御器とからな
る給湯装置。(1) A hot water supply pipe that supplies high-temperature hot water, a water supply pipe that supplies water, a mixing valve that mixes the hot water in the hot water supply pipe and the water in the water supply pipe to obtain mixed hot water at a desired temperature, and the mixing valve a mixing unit consisting of a mixing valve drive device that electrically drives the
A mixing hot water pipe extending from the mixing unit, a flow valve that adjusts the output/stop and flow rate of the mixed hot water sent from the mixing hot water pipe, a flow valve driving device that electrically drives the flow valve, and a flow valve driving device that electrically drives the flow valve. A switching valve provided downstream to electrically select a hot water outlet from a plurality of discharge ports, a switching valve drive device that electrically drives the switching valve, and setting the temperature, flow rate, and the discharge port of the mixed hot water. at least one setting device for controlling the mixing unit, the flow rate valve, and the switching valve based on a signal from the setting device, and driving the switching valve so that hot water is discharged from the set discharge port when hot water is instructed to be discharged. and a controller that controls the flow rate valve to start dispensing hot water. （２）制御器は、切替弁、流量弁、混合ユニットの順で
優先制御する特許請求の範囲第１項記載の給湯装置。(2) The water heater according to claim 1, wherein the controller prioritizes the switching valve, the flow rate valve, and the mixing unit in this order. （３）切替弁は、出湯停止時は、弁位置が中間位置に保
持する構成とした特許請求の範囲第１項記載の給湯装置
。(3) The hot water supply apparatus according to claim 1, wherein the switching valve is configured such that the valve position is maintained at an intermediate position when the hot water supply is stopped.