JPH079303B2 - Water heater - Google Patents
Water heaterInfo
- Publication number
- JPH079303B2 JPH079303B2 JP4148558A JP14855892A JPH079303B2 JP H079303 B2 JPH079303 B2 JP H079303B2 JP 4148558 A JP4148558 A JP 4148558A JP 14855892 A JP14855892 A JP 14855892A JP H079303 B2 JPH079303 B2 JP H079303B2
- Authority
- JP
- Japan
- Prior art keywords
- solenoid valve
- hot water
- valve
- hot
- water supply
- 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
Links
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
- Nozzles (AREA)
- Domestic Plumbing Installations (AREA)
- Bathtubs, Showers, And Their Attachments (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はシャワー用の給湯装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply device for a shower.
【０００２】[0002]
【従来の技術】先に本願出願人は実願昭６０−１６３９
５４号として図３に示すように縦長のシャワー塔体に複
数個のシャワー吐出口Ａを設け、スイッチ操作で無理な
姿勢をとることなく体全体に湯をかぶることのできるシ
ャワー用の給湯装置を提案した。2. Description of the Related Art The applicant of the present application previously filed Japanese Utility Model Application No. 60-1639.
As shown in FIG. 3, a shower hot water supply device is provided in which a shower tower body is provided with a plurality of shower outlets A as shown in FIG. 3, and the whole body can be covered with hot water without taking an uncomfortable posture by a switch operation. Proposed.
【０００３】[0003]
【発明が解決しようとする問題点】しかし上記従来のも
のではシャワー非使用時に湯水混合弁Ｂを通った湯を戻
し管Ｃを経て給湯器の給水側へ戻している為湯水混合弁
で低温化する分燃料が無駄であり、それ故図１に示すよ
うに戻し管を湯水混合弁の上流側で出湯管と接続すると
共に湯水混合弁の下流に出湯用電磁弁を設けて、出湯時
には出湯用電磁弁を開弁して湯水混合弁で調整された湯
を出湯する構成が考えられる。しかしながらかかる構成
では出湯停止時には湯水混合弁と出湯用電磁弁間の給湯
管内の湯が冷却されるので、出湯停止状態で長時間使用
しない場合は給湯管内を排水する必要があり、したがっ
て同図に示す様に湯水混合弁の下流に元電磁弁を設ける
と共に元電磁弁と出湯用電磁弁間の給湯管に排水管を接
続して、出湯停止時に元電磁弁と直動式の出湯用電磁弁
を閉弁し、続いて排水モードで排水管に介設した直動式
の排水電磁弁並びに出湯用電磁弁を開弁して給湯管内を
排水する必要がある。However, in the above-mentioned conventional one, since the hot water that has passed through the hot and cold water mixing valve B is returned to the water supply side of the water heater through the return pipe C when the shower is not used, the temperature of the hot and cold water mixing valve is lowered. Therefore, as shown in FIG. 1, the return pipe is connected to the hot water mixing pipe upstream of the hot and cold water mixing valve, and a hot water discharge solenoid valve is provided downstream of the hot and cold water mixing valve. A configuration in which the solenoid valve is opened and hot water adjusted by the hot and cold water mixing valve is discharged can be considered. However, in such a configuration, the hot water in the hot water supply pipe between the hot and cold water mixing valve and the hot water discharge solenoid valve is cooled when the hot water is stopped, so it is necessary to drain the hot water supply pipe when it is not used for a long time while the hot water is stopped. As shown, a main solenoid valve is installed downstream of the hot and cold water mixing valve, and a drain pipe is connected to the hot water supply pipe between the main solenoid valve and the hot water discharge solenoid valve. It is necessary to drain the inside of the hot water supply pipe by closing the valve and then opening the direct-acting drainage solenoid valve and the hot water discharge solenoid valve provided in the drainage pipe in the drainage mode.
【０００４】ところが上記した直動式の電磁弁を用いた
構成では、出湯停止時に元電磁弁と出湯用電磁弁間の給
湯管内に残圧Ｐが存在して、この残圧Ｐが図４に示すよ
うに排水並びに出湯用の直動式の電磁弁Ａの弁体Ｂに加
わるので、大きな開弁操作力が必要であり、小型の直動
式の電磁弁では容易に開かず、従ってシャワーの使用不
能や排水不能となる問題が生じる為大型の直動式の電磁
弁が必要となる。これに対し、図５に示すように、直動
式の電磁弁に代えてパイロット式の電磁弁Ｃとすれば、
上記残圧Ｐが存在してもその影響なしにプランジャＤを
移動可能である為、開弁操作力が小さくて済み、小型の
パイロット式の電磁弁でもシャワーの使用不能の問題が
生じることなく、又排水操作も容易に行えるが、排水性
が悪く、再使用時に残留水がシャワー吐出口から吐出す
る問題を生じる。即ち、パイロット式の電磁弁では、図
５に示すように、プランジャＤの移動によりダイヤフラ
ム弁体Ｅの開孔Ｆが開放されると、弁室Ｇの圧力が低下
し、ダイヤフラム弁体Ｅで区画された両室Ｇ，Ｈの圧力
差によりダイヤフラム弁体Ｅが弁室Ｇ側に変位して弁座
Ｉを開くのであるが、排水時に残水量が多くてダイヤフ
ラム弁体Ｅに加わる水頭圧Ｊが大きい場合は問題ない
が、残水量が少なくなり水頭圧が小さくなると圧力差が
小さくなってダイヤフラム弁体Ｅが弁座Ｉを閉じ、排水
が停止して、残留水が発生することになるのである。However, in the structure using the direct-acting solenoid valve described above, there is a residual pressure P in the hot water supply pipe between the original solenoid valve and the hot water discharge solenoid valve when the hot water is stopped, and this residual pressure P is shown in FIG. As shown in the figure, since it is added to the valve body B of the direct-acting solenoid valve A for drainage and hot water discharge, a large valve-opening operation force is required, and a small direct-acting solenoid valve cannot easily open it. A large direct-acting solenoid valve is required because problems such as unusability and drainage occur. On the other hand, as shown in FIG. 5, if the pilot-operated solenoid valve C is used instead of the direct-acting solenoid valve,
Since the plunger D can be moved without being affected by the residual pressure P even if the residual pressure P is present, the valve opening operation force is small, and the problem that the shower cannot be used does not occur even with a small pilot type solenoid valve. Moreover, although drainage can be easily performed, drainage is poor and residual water is discharged from the shower discharge port when reused. That is, in the pilot type solenoid valve, as shown in FIG. 5, when the opening F of the diaphragm valve body E is opened by the movement of the plunger D, the pressure in the valve chamber G is reduced and the diaphragm valve body E divides the pressure. The diaphragm valve element E is displaced toward the valve chamber G side to open the valve seat I due to the pressure difference between the two chambers G and H, but the head pressure J applied to the diaphragm valve element E due to the large amount of residual water during drainage. When it is large, there is no problem, but when the residual water amount becomes small and the head pressure becomes small, the pressure difference becomes small, the diaphragm valve body E closes the valve seat I, drainage stops, and residual water is generated. ..
【０００５】[0005]
【問題点を解決するための手段】本発明はかかる問題点
を解決せんとするものであり、その為に本発明では、給
湯器からの給湯本管と給水本管とを湯水混合弁に接続
し、湯水混合弁とシャワー吐出口間に湯水混合弁側より
元電磁弁と出湯用電磁弁を介設し、両弁間の給湯路と連
通した排水路に排水電磁弁を介設したものにおいて、上
記出湯用電磁弁をパイロット式電磁弁と直動式電磁弁を
並列接続して構成し、この直動式電磁弁を閉弁した状態
で元電磁弁とパイロット式電磁弁との開閉で上記シャワ
ー吐出口からの出湯と出湯停止を行うと共に、出湯停止
中の排水時にパイロット式電磁弁を開弁した後直動式電
磁弁並びに排水電磁弁を開弁せしめる構成としている。SUMMARY OF THE INVENTION The present invention is intended to solve such a problem. Therefore, in the present invention, a hot water supply main and a water supply main from a water heater are connected to a hot and cold water mixing valve. However, in the case where the main solenoid valve and the hot water discharge solenoid valve are installed from the hot and cold water mixing valve side between the hot and cold water mixing valve and the shower discharge port, and the drainage solenoid valve is installed in the drain passage communicating with the hot water supply passage between both valves. , The hot water discharge solenoid valve is configured by connecting a pilot type solenoid valve and a direct acting solenoid valve in parallel, and when the direct acting solenoid valve is closed, the original solenoid valve and the pilot type solenoid valve are opened and closed. Hot water is discharged from the shower outlet and stopped, and the direct-acting solenoid valve and drainage solenoid valve are opened after the pilot solenoid valve is opened during drainage while the hot water is stopped.
【０００６】[0006]
【作用】本発明では出湯時元電磁弁とパイロット式電磁
弁が開弁駆動されてシャワー吐出口からのシャワー使用
が可能となる一方出湯停止時には上記両弁が閉弁せしめ
られ、排水時にはパイロット式電磁弁の開弁後直動式電
磁弁並びに排水電磁弁が開弁され、かかるパイロット式
電磁弁の開弁により給湯路内の残圧を逃がし低下せしめ
ることで直動式電磁弁並びに排水電磁弁の開弁が容易と
なる。In the present invention, the original solenoid valve and the pilot type solenoid valve are driven to open during hot water discharge so that the shower can be used from the shower discharge port, while both valves are closed when the hot water discharge is stopped, and the pilot type during drainage. After the solenoid valve is opened, the direct-acting solenoid valve and the drainage solenoid valve are opened, and the pilot-type solenoid valve is opened to release and reduce the residual pressure in the hot water supply passage. It becomes easy to open the valve.
【０００７】[0007]
【実施例】以下本発明の実施例を図面に基づいて具体的
に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings.
【０００８】図１において、１は浴室に設置固定するシ
ャワー塔体で、塔体表面には縦列に複数個シャワー吐出
口２，３，４，５，６を設けてある。このシャワー吐出
口はシャワー塔体１の両袖斜面部に位置している。８，
９，１０は前記複数個のシャワー吐出口のうちの一部で
かつ吐出口近傍に設けた吐出スイッチであり、湯の吐出
開閉を行う図示しない制御回路と結線されており、選択
した吐出スイッチのＯＮにより吐出湯の吐出個数即ち吐
出高さが指定出来るようになっている。In FIG. 1, reference numeral 1 denotes a shower tower body installed and fixed in a bathroom, and a plurality of shower discharge ports 2, 3, 4, 5, 6 are provided in tandem on the surface of the tower body. The shower discharge ports are located on the slopes of both sleeves of the shower tower 1. 8,
Reference numerals 9 and 10 denote discharge switches provided in a part of the plurality of shower discharge ports and in the vicinity of the discharge ports, and are connected to a control circuit (not shown) for opening and closing the discharge of hot water. When it is turned on, the number of discharged hot water, that is, the discharge height can be designated.
【０００９】１２はエアマッサージシャワー等多機能シ
ャワー吐出口、１３は打たせ湯の吐出口である。Reference numeral 12 is a multifunctional shower discharge port such as an air massage shower, and 13 is a discharge port for pouring hot water.
【００１０】このシャワー塔体１への湯、水の供給はシ
ャワー塔体１の裏面側で配管により行われる。１４はシ
スターン、１５，１６は直列接続した給湯器である。１
７は給水本管、１８は給湯本管、１９は給湯器の給水側
へ湯を戻す戻し管である。２１，２２はポンプ、２３は
逆止弁である。２４は給水本管１７と給湯本管１８とを
接続した湯水混合弁で、流出側に設けた温度検出器２５
の検出温度により設定温度の温水が流出するよう制御さ
れる。２６は元電磁弁、２７は排水電磁弁、２８は流量
制御弁である。流量制御弁２８は流量検出器２９の検出
流量により設定流量となるよう制御され、流量制御弁２
８から前記したシャワー吐出口２等へ給湯路３０を介し
て給湯される。３１は各給湯路３０に介設した出湯用電
磁弁である。３３，３４は夫々給水本管１７と給湯本管
１８から分岐せしめた分岐水管並びに分岐給湯管であ
り、この分岐水管３３と分岐給湯管３４には末端に接続
された水栓の開栓を検出するための圧力スイッチ３５と
閉栓を検出するための流量スイッチ３６を設けてある。Hot water and water are supplied to the shower tower body 1 by piping on the back side of the shower tower body 1. Reference numeral 14 is a cistern, and 15 and 16 are water heaters connected in series. 1
Reference numeral 7 is a water supply main pipe, 18 is a hot water supply main pipe, and 19 is a return pipe for returning hot water to the water supply side of the water heater. 21 and 22 are pumps, and 23 is a check valve. Reference numeral 24 is a hot and cold water mixing valve connecting the hot water supply main pipe 17 and the hot water supply main pipe 18, and a temperature detector 25 provided on the outflow side.
The hot water at the set temperature is controlled to flow out according to the detected temperature. Reference numeral 26 is an original solenoid valve, 27 is a drainage solenoid valve, and 28 is a flow control valve. The flow rate control valve 28 is controlled by the flow rate detected by the flow rate detector 29 to be a set flow rate.
Hot water is supplied to the shower discharge port 2 and the like from 8 through the hot water supply passage 30. Reference numeral 31 is a hot water outlet solenoid valve provided in each hot water supply passage 30. Reference numerals 33 and 34 denote a branch water pipe and a branch hot water supply pipe branched from the water supply main pipe 17 and the hot water supply main pipe 18, respectively. The branch water pipe 33 and the branch hot water supply pipe 34 detect the opening of the faucet connected to the end. There is provided a pressure switch 35 for opening and a flow rate switch 36 for detecting closure.
【００１１】以上に説明した給湯装置の動作は以下の通
りである。先ず図示しない台所等に設置した運転スイッ
チの投入でポンプ２２が駆動し給湯本管１８と戻り管１
９の間で設定温度（７０℃）の湯を循環させながら生成
させるのである。出湯停止時元電磁弁２６は閉、排水電
磁弁２７は開、後述する直動式電磁弁３１ｂは一定時間
開となった後閉弁されており、従って元電磁弁２６以降
の給湯路内は排水されている。次に例えばかぶり湯を使
用する場合にはかぶり湯を選択し、かつ湯温と流量を設
定すればポンプ２１が動き、ポンプ２２が停止して元電
磁弁２６が開、排水電磁弁２７が閉、シャワー吐出口２
〜６への後述するパイロット式電磁弁３１ａが開とな
り、湯水混合弁２４により湯温が、流量制御弁２８によ
り流量が設定値に制御されてシャワー吐出口に供給され
る。尚上記したかぶり湯において、シャワー吐出スイッ
チ８〜１０の操作によりかぶり湯時のかぶり湯高さを設
定できる。The operation of the hot water supply device described above is as follows. First, by turning on an operation switch installed in a kitchen (not shown), the pump 22 is driven and the hot water supply main pipe 18 and the return pipe 1
The hot water of the set temperature (70 ° C.) is circulated between 9 to be generated. When the hot water is stopped, the original solenoid valve 26 is closed, the drainage solenoid valve 27 is opened, and the direct-acting solenoid valve 31b described later is closed after being opened for a certain period of time. Therefore, the hot water supply passage after the original solenoid valve 26 is closed. It is drained. Next, for example, when using fog hot water, if fog hot water is selected and the hot water temperature and flow rate are set, the pump 21 moves, the pump 22 stops, the original solenoid valve 26 opens, and the drainage solenoid valve 27 closes. , Shower outlet 2
The pilot type solenoid valve 31a described later to 6 is opened, the hot water temperature is controlled by the hot water mixing valve 24 and the flow rate is controlled by the flow rate control valve 28 to a set value, and the shower temperature is supplied to the shower outlet. In the fog bath described above, the fog height at the time of fog can be set by operating the shower discharge switches 8 to 10.
【００１２】図２は出湯用電磁弁３１の断面図を示した
もので、給湯路３０に並列に介設されたパイロット式電
磁弁３１ａと直動式電磁弁３１ｂとからなる。パイロッ
ト式電磁弁３１ａは流入路４７と流出路４８を有する単
一の弁主体４９に形成した弁座５０を開閉するダイヤフ
ラム弁体５１と、該弁体５１に設けた開口５２をコイル
５３の通電により駆動されて開放するプランジャー５４
から成る。尚５５はダイヤフラム弁体５１に設けた開孔
である。又直動式電磁弁３１ｂは上記弁主体４９に形成
された弁座６０を開閉する弁体６１と、該弁体６１を取
着してコイル６３の通電により駆動されて弁座６０を開
放するプランジャー６４から成る。６７は上述した電磁
弁、ポンプ等の負荷を制御する制御器である。FIG. 2 is a sectional view of the hot water discharge solenoid valve 31, which comprises a pilot type solenoid valve 31a and a direct acting solenoid valve 31b which are provided in parallel in the hot water supply passage 30. The pilot type solenoid valve 31a has a diaphragm valve body 51 for opening and closing a valve seat 50 formed in a single valve main body 49 having an inflow path 47 and an outflow path 48, and an opening 52 provided in the valve body 51 for energizing a coil 53. Plunger 54 driven and opened by
Consists of. Reference numeral 55 is an opening provided in the diaphragm valve body 51. The direct-acting electromagnetic valve 31b opens the valve seat 60 by opening and closing the valve seat 60 formed in the valve main body 49, and by mounting the valve body 61 and driving the coil 63 to energize it. It consists of a plunger 64. Reference numeral 67 is a controller that controls the loads of the solenoid valve, the pump, etc. described above.
【００１３】以上の動作を更に詳細に説明すると、前記
かぶり湯メニューの選択時先ずポンプ２２が停止し、ポ
ンプ２１が駆動すると共に元電磁弁２６を開、排水電磁
弁２７が開となる。そして一定時間経過後に排水電磁弁
２７が閉となり、かつ下方のシャワー吐出口６からシャ
ワー吐出スイッチ８〜１０で設定した高さのシャワー吐
出口２〜４まで各シャワー吐出口に至る給湯路３０のパ
イロット式電磁弁３１ａが順次通電開放されて、かぶり
湯が行われる。そしてかぶり湯使用停止時には停止操作
で先ず元電磁弁２６並びにパイロット式電磁弁３１ａを
閉とする。かかる停止状態が設定時間継続した場合には
いずれか１つのパイロット式電磁弁３１ａを開弁した後
排水電磁弁２７並びに直動式電磁弁３１ｂを開とするの
であり、このパイロット式電磁弁３１ａの開弁によって
給湯路３０内の残圧が低下せしめられて排水電磁弁２７
と直動式電磁弁３１ｂの開弁が容易に行われ、元電磁弁
２６以降の水路内の滞留水は排水路６６より排水される
のである。To explain the above operation in more detail, when the fog hot water menu is selected, the pump 22 is stopped first, the pump 21 is driven, and the original solenoid valve 26 is opened and the drainage solenoid valve 27 is opened. Then, after the elapse of a certain time, the drainage solenoid valve 27 is closed, and the hot water supply passage 30 extending from the lower shower discharge port 6 to the shower discharge ports 2 to 4 having the height set by the shower discharge switches 8 to 10 reaches each shower discharge port. The pilot type solenoid valve 31a is sequentially energized and opened to perform fog hot water. Then, when the use of the cover water is stopped, the original solenoid valve 26 and the pilot solenoid valve 31a are first closed by a stop operation. When such a stopped state continues for a set time, one of the pilot solenoid valves 31a is opened, and then the drain solenoid valve 27 and the direct acting solenoid valve 31b are opened. By opening the valve, the residual pressure in the hot water supply passage 30 is reduced and the drainage solenoid valve 27
The direct-acting solenoid valve 31b is easily opened, and the accumulated water in the water passage after the original solenoid valve 26 is discharged from the drainage passage 66.
【００１４】[0014]
【発明の効果】以上説明したように本発明は、湯水混合
弁とシャワー吐出口間に湯水混合弁側より元電磁弁と出
湯用電磁弁を介設し両弁間の給湯路と連通した排水路に
排水電磁弁を介設し、かつ出湯用電磁弁をパイロット式
電磁弁と直動式電磁弁を並列接続して構成したものであ
るから、排水時直動式電磁弁の開弁によって該電磁弁か
らシャワー吐出口に至る給湯管内の残留水を排水するの
で、残留水は確実に排水されて再使用時に使用者が冷水
を浴びる恐れがなく安全である。又、出湯と出湯停止は
パイロット式電磁弁の開閉により行うので、出湯停止時
のウォータハンマの発生を防止することができ、更に排
水時には直動式電磁弁での開弁操作力と比較して小さな
操作力で開弁可能なパイロット式電磁弁を先に開弁して
直動式電磁弁の弁体に加わる背圧を逃がして直動式電磁
弁の開弁操作力を小さくしたので、直動式電磁弁は小型
のものでよく、出湯用電磁弁に大型の直動式電磁弁のみ
を用いる場合と比較して価格的に安価な給湯装置を提供
できる。As described above, according to the present invention, the main solenoid valve and the hot water discharge solenoid valve are provided between the hot and cold water mixing valve and the shower discharge port from the hot and cold water mixing valve side, and the drainage is communicated with the hot water supply passage between the two valves. Since the drainage solenoid valve is installed in the passage and the hot water discharge solenoid valve is configured by connecting the pilot type solenoid valve and the direct acting solenoid valve in parallel, Since the residual water in the hot water supply pipe from the solenoid valve to the shower outlet is drained, the residual water is reliably drained and there is no risk of the user being exposed to cold water during reuse, which is safe. In addition, since hot water is stopped and hot water is stopped by opening and closing the pilot solenoid valve, it is possible to prevent the occurrence of water hammer when hot water is stopped. Since the pilot type solenoid valve that can be opened with a small operating force is opened first, the back pressure applied to the valve body of the direct acting solenoid valve is released to reduce the opening force of the direct acting solenoid valve. The dynamic solenoid valve may be of a small size, and a hot water supply apparatus can be provided at a lower price compared to the case of using only a large direct drive solenoid valve for the hot water discharge solenoid valve.
【図１】本発明の一実施例を示す全体構成図である。FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.
【図２】本発明の一実施例における出湯用電磁弁の断面
図である。FIG. 2 is a cross-sectional view of a hot water discharge solenoid valve according to an embodiment of the present invention.
【図３】本発明の従来例を示す全体構成図である。FIG. 3 is an overall configuration diagram showing a conventional example of the present invention.
【図４】従来の直動式電磁弁の断面図である。FIG. 4 is a sectional view of a conventional direct acting solenoid valve.
【図５】従来のパイロット式電磁弁の断面図である。FIG. 5 is a sectional view of a conventional pilot type solenoid valve.
２ シャワー吐出口 ３ シャワー吐出口 ４ シャワー吐出口 ５ シャワー吐出口 ６ シャワー吐出口 １５ 給湯器 １６ 給湯器 ２６ 元電磁弁 ２７ 排水電磁弁 ３０ 給湯路 ３１ａ パイロット式電磁弁 ３１ｂ 直動式電磁弁 ６６ 排水路 2 Shower outlet 3 Shower outlet 4 Shower outlet 5 Shower outlet 6 Shower outlet 15 Water heater 16 Water heater 26 Original solenoid valve 27 Drainage solenoid valve 30 Hot water supply passage 31a Pilot type solenoid valve 31b Direct acting solenoid valve 66 Drainage Road
Claims (1)
水混合弁に接続し、湯水混合弁とシャワー吐出口間に湯
水混合弁側より元電磁弁と出湯用電磁弁を介設し、両弁
間の給湯路と連通した排水路に排水電磁弁を介設したも
のにおいて、上記出湯用電磁弁をパイロット式電磁弁と
直動式電磁弁を並列接続して構成し、この直動式電磁弁
を閉弁した状態で元電磁弁とパイロット式電磁弁との開
閉で上記シャワー吐出口からの出湯と出湯停止を行うと
共に、出湯停止中の排水時にパイロット式電磁弁を開弁
した後直動式電磁弁並びに排水電磁弁を開弁せしめるこ
とを特徴とする給湯装置。1. A hot water supply main and a water supply main from a water heater are connected to a hot and cold water mixing valve, and an original solenoid valve and a hot water discharge solenoid valve are provided between the hot and cold water mixing valve and the shower outlet from the hot and cold water mixing valve side. However, in the case where a drainage solenoid valve is provided in the drainage path communicating with the hot water supply path between the two valves, the hot water discharge solenoid valve is constructed by connecting the pilot solenoid valve and the direct acting solenoid valve in parallel. With the dynamic solenoid valve closed, the main solenoid valve and the pilot solenoid valve were opened and closed to discharge and stop hot water from the shower outlet, and the pilot solenoid valve was opened during drainage while the hot water was stopped. A hot water supply device characterized by opening a rear direct acting solenoid valve and a drain solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4148558A JPH079303B2 (en) | 1992-05-15 | 1992-05-15 | Water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4148558A JPH079303B2 (en) | 1992-05-15 | 1992-05-15 | Water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05180454A JPH05180454A (en) | 1993-07-23 |
| JPH079303B2 true JPH079303B2 (en) | 1995-02-01 |
Family
ID=15455444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4148558A Expired - Fee Related JPH079303B2 (en) | 1992-05-15 | 1992-05-15 | Water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079303B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5119138B2 (en) * | 2008-12-08 | 2013-01-16 | リンナイ株式会社 | Tapping hot water equipment |
| AU2012249223B2 (en) * | 2011-04-28 | 2016-12-22 | 3Eflow Ab | A method and a liquid tap device for retaining the temperature of a liquid in a liquid distribution system |
| JP2017062064A (en) * | 2015-09-24 | 2017-03-30 | 住友重機械工業株式会社 | Pulse tube freezing machine |
| US20170130432A1 (en) | 2015-11-10 | 2017-05-11 | Aqua View Inc. | Water conserving shower system and thermochromic fixtures used therein |
-
1992
- 1992-05-15 JP JP4148558A patent/JPH079303B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05180454A (en) | 1993-07-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |