JPH0351983B2 - - Google Patents
Info
- Publication number
- JPH0351983B2 JPH0351983B2 JP58152284A JP15228483A JPH0351983B2 JP H0351983 B2 JPH0351983 B2 JP H0351983B2 JP 58152284 A JP58152284 A JP 58152284A JP 15228483 A JP15228483 A JP 15228483A JP H0351983 B2 JPH0351983 B2 JP H0351983B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- hot water
- gas
- temperature
- supply pipe
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
- F23N1/085—Regulating fuel supply conjointly with another medium, e.g. boiler water using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/18—Measuring temperature feedwater temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Description
【発明の詳細な説明】
本発明は追焚き又は暖房器付のガス瞬間式給湯
機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas instantaneous water heater with reheating or heater.
従来、追焚き又は暖房器付のガス瞬間式給湯機
としては、第１図に示す構造の２缶２水路式のも
のが知られている。 BACKGROUND ART Conventionally, a two-can, two-channel type water heater having a structure shown in FIG. 1 has been known as a gas instantaneous water heater with reheating or heater.
第１図のものについて説明すると、１つの装置
本体１１内に給湯用の熱交換器１２とバーナー１
３、追焚き又は暖房用の熱交換器１２′とバーナ
ー１３′が夫々設けられており、給水管路１には
水流スイツチ１６、給湯管路５には出湯温度セン
サー６が設けられ、追焚き又は暖房用の熱交換器
１２′と放熱部８とを連絡する循環流路１４には
放熱部８出口と熱交換器１２′入口の間にシスタ
ーン１５が設けられると共にシスターン１５の出
口と熱交換器１２′入口との間にポンプ９と水流
スイツチ１６が、また熱交換器１２′出口付近に
出湯温度センサー６′が夫々設けられており、上
記ポンプ９、水流スイツチ１６、出湯温度センサ
ー６′が夫々コントローラー１７に電気的に連絡
している。 To explain the device shown in FIG.
3. A heat exchanger 12' and a burner 13' are provided for reheating or heating, a water flow switch 16 is provided in the water supply pipe 1, a hot water outlet temperature sensor 6 is provided in the hot water supply pipe 5, and a heat exchanger 12' and a burner 13' are provided for reheating or heating. Alternatively, a cistern 15 is provided between the outlet of the heat radiator 8 and the inlet of the heat exchanger 12' in the circulation flow path 14 that connects the heat exchanger 12' for heating and the heat radiator 8, and a cistern 15 is provided for heat exchange with the outlet of the cistern 15. A pump 9 and a water flow switch 16 are provided between the inlet of the heat exchanger 12' and a hot water temperature sensor 6' near the outlet of the heat exchanger 12'. are in electrical communication with the controller 17, respectively.
また上記コントローラー１７はバーナー１２′
にガスを供給するガス供給管１８に設けた電磁弁
１９、比例弁２０にも連絡している。 Further, the controller 17 is connected to the burner 12'.
It also communicates with an electromagnetic valve 19 and a proportional valve 20 provided in a gas supply pipe 18 that supplies gas to the gas.
そして、このものは放熱器８を使用する場合、
追焚き又は暖房用運転スイツチ２１を「入」にす
るとポンプ９が運転を始め、循環流路１４を循環
水が所定の流量以上流れると水流スイツチ１６が
作動してバーナー１３′に着火し、コントローラ
ー１７で決定されている設定温度と出湯温度セン
サー６′の温度によりガス量が演算され、その信
号が比例弁２０に行きガス量が決定されるもので
ある。 And when this thing uses the heat sink 8,
When the reheating or heating operation switch 21 is turned on, the pump 9 starts operating, and when the circulating water flows through the circulation channel 14 at a predetermined flow rate or more, the water flow switch 16 is activated and the burner 13' is ignited, and the controller The amount of gas is calculated based on the set temperature determined in step 17 and the temperature of the outlet temperature sensor 6', and the signal is sent to the proportional valve 20 to determine the amount of gas.
以上の従来のものは、２缶２水路式であり、給
湯側及び追焚き又は暖房側夫々がバーナーと熱交
換器を備えるうえ追焚き又は暖房側がシスターン
を有するので装置体が非常に大型になり、コスト
も高い。しかもシスターンを有するため、シスタ
ーンに水を補充する手間がかかるばかりでなく、
シスターンからの放熱によるエネルギーロスが生
じる。 The conventional system described above is a two-can, two-channel type, and the hot water supply side and the reheating or heating side each have a burner and a heat exchanger, and the reheating or heating side has a cistern, making the device very large. , and the cost is high. Moreover, since it has a cistern, it not only takes time and effort to refill the cistern with water, but also
Energy loss occurs due to heat radiation from the cistern.
本発明は上記問題を解消し、装置の小型化及び
低コスト化を計かると共に水補給の煩雑な手間や
エネルギーロスをなくすことを目的とするもので
ある。 The present invention aims to solve the above-mentioned problems, reduce the size and cost of the device, and eliminate the troublesome effort and energy loss of water replenishment.
上記目的を達成するための本発明の構成は、給
湯温度を流量、入水温度、設定温度及び熱交換器
の効率によつて演算されるガス量、若しくは上記
ガス量に出湯温度、設定温度及び比例ゲインによ
つて演算されるガス量を加えたガス量により制御
するガス瞬間式給湯機において、給水管路に上流
側から順次、減圧逆止弁、水量センサー、入水温
度センサーを設け、給湯管路に上流側から順次、
出湯温センサー、給湯温度がガス量により制御で
きなくなつたとき自動的に給水量を絞る水量バル
ブを設ける上記給湯管路を出湯温センサーと水量
バルブとの間において放熱器入口にポンプを介し
て連絡し、給水管路を減圧逆止弁と水量センサー
の間において放熱器の出口にチヤツキ弁を介して
連絡するものである。 The configuration of the present invention for achieving the above object is to convert the hot water supply temperature into a gas amount calculated based on the flow rate, water inlet temperature, set temperature, and efficiency of the heat exchanger, or to calculate the hot water temperature, the set temperature, and the proportional ratio to the above gas amount. In a gas instantaneous water heater that is controlled by the amount of gas added to the amount of gas calculated by the gain, a pressure reducing check valve, a water amount sensor, and an inlet water temperature sensor are installed in the water supply pipe sequentially from the upstream side. sequentially from the upstream side,
A hot water supply pipe is provided with a hot water temperature sensor and a water flow valve that automatically reduces the water supply when the hot water temperature cannot be controlled due to the gas flow rate. The water supply pipe is connected to the outlet of the radiator between the pressure reducing check valve and the water amount sensor via a check valve.
以下、本発明の一実施例を図に基づいて説明す
る。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
この実施例は電源スイツチを「入」にして、給
湯栓を開けば湯が出る方式のものである。 In this embodiment, hot water comes out by turning on the power switch and opening the hot water tap.
図中１１は給湯機本体で、ガスはガス供給管１
８を介してバーナー１３に送られてここで燃焼
し、水は給水管路１を介して熱交換器１２へ入
り、ここで加熱されて給湯管路５を通り、給湯栓
２２へ供給されるようになつている。 In the figure, 11 is the main body of the water heater, and the gas is the gas supply pipe 1.
8 to a burner 13 where it is combusted, and the water enters a heat exchanger 12 via a water supply pipe 1, where it is heated, passes through a hot water supply pipe 5, and is supplied to a hot water tap 22. It's becoming like that.
また、給湯機本体１１は、給湯管路５から循環
往管２３を、給水管路１から循環戻管２４を夫々
分岐して、上記循環往管２３を給湯機本体１１外
部に設けられる放熱器８の入口に、循環戻管２４
を放熱器８の出口に夫々連絡させ、給水管路１か
ら熱交換器１２へ供給され加熱された湯を放熱器
８へ送り、放熱器８で放熱した後熱交換器１２へ
戻し、再び熱交換器１２で加熱出来るようになつ
ている。 The water heater main body 11 also branches a circulation outgoing pipe 23 from the hot water supply pipe line 5 and a circulation return pipe 24 from the water supply pipe line 1, respectively, and connects the circulation outgoing pipe 23 to a radiator provided outside the water heater main body 11. At the inlet of 8, there is a circulation return pipe 24.
are connected to the outlet of the radiator 8, and the heated hot water supplied from the water supply pipe 1 to the heat exchanger 12 is sent to the radiator 8, and after being radiated by the radiator 8, it is returned to the heat exchanger 12, where it is heated again. It is designed so that it can be heated by an exchanger 12.
給水管路１には循環戻管２４分岐部より上流側
に減圧逆止弁２が設けられると共に上記分岐部よ
り下流側に水量センサー３と入水温度センサー４
が前者３を上流側にして設けられる。 The water supply pipe 1 is provided with a pressure reducing check valve 2 upstream from the branch of the circulation return pipe 24, and a water flow sensor 3 and an inlet water temperature sensor 4 downstream of the branch.
is provided with the former 3 on the upstream side.
給湯管路５には循環往管２３分岐部より上流側
に出湯温度センサー６が、下流側に水量バルブ７
が夫々設けられ、給水管路１から水が導入されて
該循環流路２３，２４内に満たされる。 In the hot water supply pipe 5, there is a hot water temperature sensor 6 on the upstream side of the branch part of the circulation outgoing pipe 23, and a water flow valve 7 on the downstream side.
are provided respectively, and water is introduced from the water supply pipe 1 to fill the circulation channels 23 and 24.
この際、循環流路２３，２４内に存在する空気
は循環流路２３，２４の適所、図示例では給湯配
管５に設けた空気抜き弁２９を介して排出され
る。 At this time, the air present in the circulation channels 23, 24 is discharged through an air vent valve 29 provided at a suitable location in the circulation channels 23, 24, in the illustrated example, the hot water supply piping 5.
また、循環往管２３にはポンプ９が、循環戻環
２４にはチヤツチ弁１０が夫々設けられる。 Further, the circulation outgoing pipe 23 is provided with a pump 9, and the circulation return ring 24 is provided with a check valve 10, respectively.
上記、水量センサー３、入水温度センサー４、
出湯温度センサー６、水量バルブ７、及びポンプ
９は夫々給湯機本体１１とは別個に設けられたコ
ントローラー１７に電気的に連絡し、上記水量セ
ンサー３は水量を検出して信号Ａを、入水温度セ
ンサー４は入水温度を検出して信号Ｂを、出湯温
度センサー６は出湯温度を検出して信号Ｃを夫々
コントローラ１７に送る。 Above, water flow sensor 3, water inlet temperature sensor 4,
The outlet hot water temperature sensor 6, the water flow valve 7, and the pump 9 are each electrically connected to a controller 17 provided separately from the water heater main body 11, and the water flow sensor 3 detects the water flow and outputs a signal A, indicating the water inlet temperature. Sensor 4 detects the incoming water temperature and sends signal B, and outlet hot water temperature sensor 6 detects the outlet water temperature and sends signal C to controller 17.
一方、前述のガス供給管１８には上流側から順
次、電磁弁１９、ガバナー２５、比例弁２０が設
けられ、上記電磁弁１９と比例弁２０がコントロ
ーラー１７に電気的に連絡される。 On the other hand, the aforementioned gas supply pipe 18 is sequentially provided with a solenoid valve 19, a governor 25, and a proportional valve 20 from the upstream side, and the solenoid valve 19 and the proportional valve 20 are electrically connected to the controller 17.
コントローラー１７は電源スイツチ２６及び風
呂運転スイツチ２１を備えたボツクス１７内に設
けられ、上記信号Ａ、Ｂ、Ｃを受けて、水量と、
入水温度と、出湯温度と、予め設定された設定温
度と、熱交換器１２の熱効率と、比例ゲインとに
よりガス量を演算し、信号Ｄを比例弁２０に送る
ように構成されている。 The controller 17 is provided in a box 17 equipped with a power switch 26 and a bath operation switch 21, and receives the above signals A, B, and C, and controls the amount of water and
The gas amount is calculated based on the inlet water temperature, the outlet temperature, a preset temperature, the thermal efficiency of the heat exchanger 12, and the proportional gain, and a signal D is sent to the proportional valve 20.
上記ガス量の決定は下記演算式によつて行われ
る。 The above gas amount is determined by the following arithmetic expression.
F1＝（TS−TIN）×Ｑ／η ……
F2＝ａ×（TS−TOUT）×Ｑ ……
Ｆ＝F1＋F2 ……
F1：フイードフオワードによるガス量（Kcal／
分）
F2：フイードバツクによるガス量（Kcal／分）
Ｆ：最終的なガス量（Kcal／分）
Ｑ：流量（／分） TIN：入水温度（℃）
TOUT：出湯温度 TS：設定温度（℃）
η：熱交換器の効率 α：比例ゲイン
而して上記比例弁２０は信号Ｄを受けてバーナ
ー１３へ送るガス量を増減し、給湯温度を設定温
度に一致させる。 F 1 = (T S - T IN ) x Q/η... F 2 = a x (T S - T OUT ) x Q... F = F 1 + F 2 ... F 1 : Gas amount due to feed forward (Kcal/
F2 : Gas amount due to feedback (Kcal/min) F: Final gas amount (Kcal/min) Q: Flow rate (/min) T IN : Inlet water temperature (℃) T OUT : Output water temperature T S : Setting Temperature (°C) η: Heat exchanger efficiency α: Proportional gain The proportional valve 20 receives the signal D and increases or decreases the amount of gas sent to the burner 13, thereby making the hot water supply temperature match the set temperature.
コントローラー１７はまた、入水温度センサー
４で検出した入水温度と、設定温度と、給湯機の
最大能力により、限界水量を演算すると共にこの
限界水量と、水量センサー３で検出している水量
とを比較演算し、水量センサー３へ検出した水量
が限界水量以上になつた場合に信号Ｅを水量バル
ブ７に送るように構成されている。 The controller 17 also calculates the limit water amount based on the inlet water temperature detected by the inlet water temperature sensor 4, the set temperature, and the maximum capacity of the water heater, and compares this limit water amount with the water amount detected by the water amount sensor 3. It is configured to calculate and send a signal E to the water volume valve 7 when the water volume detected by the water volume sensor 3 exceeds the water volume limit.
水量バルブ７は信号Ｅを受けて給湯栓２２への
給湯量を絞り、熱交換器１２に限界水量以上の水
が流れないようにする。 The water flow valve 7 receives the signal E and throttles the amount of hot water supplied to the hot water tap 22 so that water in excess of the limit water flow does not flow into the heat exchanger 12.
尚、ポンプ９は放熱器運転スイツチ２１の投入
によつて作動する。 Incidentally, the pump 9 is operated when the radiator operation switch 21 is turned on.
而して、斯るガス瞬間式給湯機は、電源スイツ
チ２６を投入し、給湯栓２２の湯用バルブ２７を
開けると、熱交換器１２で加熱された設定温度の
湯が給湯管路５を経て給湯栓２２から吐出させ
る。 In such a gas instantaneous water heater, when the power switch 26 is turned on and the hot water valve 27 of the hot water tap 22 is opened, hot water at the set temperature heated by the heat exchanger 12 flows through the hot water supply pipe 5. Then, the hot water is discharged from the hot water tap 22.
設定温度は例えば80℃に設定されており、必要
によつて給湯栓２２部分で湯に水が加えられ所望
温度に混合される。 The set temperature is, for example, 80° C., and if necessary, water is added to the hot water at the hot water tap 22 and mixed to a desired temperature.
即ち給湯栓２２は給水管路１とも連絡してお
り、水用バルブ２８を開けることにより所望量の
水が給湯栓２２に供給されるようになつている。 That is, the hot water tap 22 is also in communication with the water supply pipe 1, and by opening the water valve 28, a desired amount of water is supplied to the hot water tap 22.
また電源スイツチ２６を入れ、給湯栓２２を閉
じた状態で放熱器運転用スイツチ２１を投入する
とポンプ９が作動して、熱交換器１２で加熱され
給湯管路５へ流動した湯がポンプ９の作動で循環
往管２３、放熱器８、循環戻管２４を経て給水管
路１から熱交換器１２に戻るように循環流動し、
その循環流動の過程において放熱器８で放熱す
る。 In addition, when the power switch 26 is turned on and the radiator operation switch 21 is turned on with the hot water tap 22 closed, the pump 9 is activated, and the hot water heated by the heat exchanger 12 and flowing into the hot water supply pipe 5 flows through the pump 9. When activated, the water circulates and flows back from the water supply pipe 1 to the heat exchanger 12 via the circulating outgoing pipe 23, the radiator 8, and the circulating return pipe 24,
Heat is radiated by the radiator 8 during the circulating flow process.
この循環流動する湯も当然設定温度に制御され
る。 Naturally, this circulating hot water is also controlled to a set temperature.
循環流動する湯の給水管路１上流側への逆流は
減圧逆止弁２により防止される。 A pressure reducing check valve 2 prevents the circulating hot water from flowing back upstream of the water supply pipe 1 .
次に給湯栓２２の使用と、風呂運転スイツチ２
１の投入が重なる場合には放熱器８を通る湯の循
環と、給湯栓２２への湯の供給は両方とも行なわ
れる。 Next, use the hot water tap 22 and turn on the bath operation switch 2.
1, both the hot water circulation through the radiator 8 and the hot water supply to the hot water tap 22 are performed.
このとき、給湯栓２２への湯の供給は給湯機号
数から放熱器１２に使用している号数を減じた分
だけ供給できる。 At this time, hot water can be supplied to the hot water faucet 22 by the number of hot water heaters minus the number of hot water used for the radiator 12.
そして、給湯栓２２への湯の供給量は仮に給湯
栓２２を大きく開けたとしても、水量バルブ７の
作用により供給可能範囲内に制御される。 Even if the hot water tap 22 is opened wide, the amount of hot water supplied to the hot water tap 22 is controlled within a supplyable range by the action of the water flow valve 7.
尚、放熱器８は追焚き用バスヒーター、暖房
器、乾燥器通の種々の用途に使用できるが、この
実施例では追焚き用バスヒーターとして使用して
おり、そのため図面において放熱器運転スイツチ
は風呂運転スイツチ２１として表わされている。 The radiator 8 can be used for various purposes such as a bus heater for reheating, a space heater, and a dryer, but in this embodiment it is used as a bus heater for reheating, so the radiator operation switch is not shown in the drawing. It is represented as a bath operating switch 21.
本発明は上記の構成であるから以下の利点を有
する。 Since the present invention has the above configuration, it has the following advantages.
(1) １缶２水路式の構成であるため放熱器用の独
立したバーナー、熱交換器が不要であり、しか
も熱交換器前後の管路を給湯系路と放熱系路と
で共用して管路の簡素化を行なうと共にシスタ
ーンもないので、非常にコンパクトになり、同
時にコストも安くなる。(1) Since it has a one-can, two-channel configuration, there is no need for a separate burner or heat exchanger for the heat radiator, and the pipes before and after the heat exchanger are shared between the hot water supply system line and the heat radiation system line. Since the path is simplified and there is no cistern, it becomes extremely compact and at the same time, the cost is reduced.
(2) シスターンがないので、放熱が小さく、エネ
ルギーロスが少ない。(2) Since there is no cistern, heat radiation is small and energy loss is small.
(3) 給水管路から供給する水を加熱して循環させ
るので水の補給をしなくても良く、手間がかか
らない。(3) Since the water supplied from the water supply pipe is heated and circulated, there is no need to replenish the water, which saves time and effort.
(4) 給湯機の能力内で同時使用ができる。(4) Can be used simultaneously within the capacity of the water heater.
第１図は従来の追焚き又は暖房器付のガス瞬間
式給湯機の一例を示す模式図、第２図は本発明の
実施の一例を示すガス瞬間式給湯機の模式図であ
る。
１……給水管路、２……減圧逆止弁、３……水
量センサー、４……入水温度センサー、５……給
湯管路、６……出湯温度センサー、７……水量バ
ルブ、８……放熱器、９……ポンプ、１０……チ
ヤツキ弁。
FIG. 1 is a schematic diagram showing an example of a conventional gas instantaneous water heater with reheating or heater, and FIG. 2 is a schematic diagram of a gas instantaneous water heater showing an example of the implementation of the present invention. 1...Water supply pipe, 2...Pressure reducing check valve, 3...Water amount sensor, 4...Incoming water temperature sensor, 5...Hot water supply pipe, 6...Outgoing hot water temperature sensor, 7...Water amount valve, 8... ...Radiator, 9...Pump, 10...Check valve.
Claims (1)
交換器の効率によつて演算されるガス量、若しく
は上記ガス量に出湯温度、設定温度及び比例ゲイ
ンによつて演算されるガス量を加えたガス量によ
り制御するガス瞬間式給湯機において、熱交換器
へ向う給水管路に上流側から順次、減圧逆止弁、
水量センサー、入水温度センサーを設け、且つ、
熱交換器を介して上記給水管路と直接連絡する給
湯管路に上流側から順次、出湯温度センサー、給
湯温度がガス量により制御できなくなつたとき自
動的に給水量を絞る水量バルブを設けると共に上
記給湯管路を出湯温度センサーと水量バルブとの
間において放熱器入口にポンプの介して連絡し、
給水管路を減圧逆止弁と水量センサーの間におい
て放熱器の出口にチヤツキ弁を介して連絡してな
るガス瞬間式給湯機。1 The hot water supply temperature is calculated by the flow rate, the incoming water temperature, the set temperature, and the gas amount calculated by the efficiency of the heat exchanger, or the above gas amount is added to the gas amount calculated by the hot water exit temperature, the set temperature, and the proportional gain. In a gas instantaneous water heater that is controlled by the amount of gas, a pressure reducing check valve,
A water amount sensor and an incoming water temperature sensor are provided, and
A hot water supply pipe that directly communicates with the water supply pipe through a heat exchanger is sequentially provided from the upstream side with a hot water temperature sensor and a water flow valve that automatically reduces the water supply amount when the hot water temperature cannot be controlled due to the gas flow rate. and connecting the hot water supply pipe to the radiator inlet between the hot water temperature sensor and the water flow valve via a pump,
A gas instantaneous water heater in which a water supply pipe is connected between a pressure reducing check valve and a water flow sensor to the outlet of a radiator via a check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58152284A JPS6044754A (en) | 1983-08-19 | 1983-08-19 | Gas instantaneous hot water supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58152284A JPS6044754A (en) | 1983-08-19 | 1983-08-19 | Gas instantaneous hot water supplier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6044754A JPS6044754A (en) | 1985-03-09 |
| JPH0351983B2 true JPH0351983B2 (en) | 1991-08-08 |
Family
ID=15537151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58152284A Granted JPS6044754A (en) | 1983-08-19 | 1983-08-19 | Gas instantaneous hot water supplier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6044754A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5247621B2 (en) * | 2009-07-31 | 2013-07-24 | リンナイ株式会社 | Hot water heating system |
| CN102538212A (en) * | 2011-12-15 | 2012-07-04 | 江门市银河科技发展有限公司 | Overheating protection device of electromagnetic water heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5885052A (en) * | 1981-11-16 | 1983-05-21 | Noritsu Co Ltd | One boiler two circuit type hot-water supplying device with additional heating device |
-
1983
- 1983-08-19 JP JP58152284A patent/JPS6044754A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6044754A (en) | 1985-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |