JPS63238356A - Hot water supplier - Google Patents
Hot water supplierInfo
- Publication number
- JPS63238356A JPS63238356A JP62070903A JP7090387A JPS63238356A JP S63238356 A JPS63238356 A JP S63238356A JP 62070903 A JP62070903 A JP 62070903A JP 7090387 A JP7090387 A JP 7090387A JP S63238356 A JPS63238356 A JP S63238356A
- Authority
- JP
- Japan
- Prior art keywords
- water
- temperature
- hot water
- heater
- electric heater
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 151
- 238000002485 combustion reaction Methods 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 210000000936 intestine Anatomy 0.000 description 2
- 230000004397 blinking Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分！ＩＦ） 本発明は給湯装置に関するものである。[Detailed description of the invention] (Industrial use! IF) The present invention relates to a water heater.
（従来の技術）
従来、湯沸器から給湯栓に至る管路中の湯は放熱により
冷水となり、給湯栓を開いてもしばらくは冷水が吐出さ
れて、なかなか湯が出ないという問題点に鑑み、ｍ廃品
と給湯栓との間に循環路を形成して保温循環させるよう
にしたものが提案されている。(Conventional technology) Conventionally, hot water in the pipe leading from the water heater to the hot water faucet becomes cold water due to heat radiation, and in view of the problem that cold water is discharged for a while even when the hot water faucet is opened, hot water does not come out easily. , a system has been proposed in which a circulation path is formed between the waste product and the hot water tap to keep it warm and circulate it.
例えば特開昭６０−２３３４４５号公報には、循環路内
の湯温と循環流量とを検出し、設定温度に加熱するのに
必要な熱量を演算して湯沸器を間欠的に燃焼させるよう
にしたものが示されている。For example, Japanese Patent Application Laid-Open No. 60-233445 discloses a system that detects the temperature of hot water in the circulation path and the circulation flow rate, calculates the amount of heat required to heat the water to a set temperature, and then intermittently burns the water heater. is shown.
（発明が解決しようとする問題点）
しかしながらこの従来のものでは、湯沸器の着火、消火
動作が頻繁に行なわれ、燃料弁の耐久性等で不利になる
問題がある。つまり、保温循環時の必要熱量は通常給湯
時に比べてはるかに小さい場合がほとんどであり、保温
循環時には極めて短い周期で着火、消火を頻繁に行なう
ことになるのである。(Problems to be Solved by the Invention) However, in this conventional system, ignition and extinguishing operations of the water heater are frequently performed, and there is a problem in that the durability of the fuel valve is disadvantageous. In other words, the amount of heat required during heat-retaining circulation is in most cases much smaller than that during normal hot water supply, and during heat-retaining circulation, ignition and extinguishing are frequently performed in extremely short cycles.
また、燃焼量を可変できる湯沸器を用いて設定温度を検
知するまで最低燃焼量で加熱することも考えられるが、
加熱を始める温度と設定温度との差が小さい場合にはや
はり着火後ごく短詩ｉｆｆで消火することになり、結８
湯沸器のオンオフは頻繁に生じることになるから、保温
運転開始温度は設定温度よりもかなり低い温度に設定し
なければならない問題があり使用勝手が悪い。Another option would be to use a water heater that can vary the amount of combustion and heat the water at the minimum amount of combustion until the set temperature is detected.
If the difference between the temperature at which heating starts and the set temperature is small, the fire will be extinguished in a very short time after ignition.
Since the water heater is turned on and off frequently, there is a problem in that the temperature at which the warming operation starts must be set to a temperature considerably lower than the set temperature, which is inconvenient to use.
何れにしても能力の大きい湯沸器を用いるほど保温のた
めの点滅は頻繁になり、また湯温のオーバーシュートが
生じ易い問題点を有していた。In any case, the higher the capacity of the water heater, the more frequent the flashing to keep the water warm, and the problem is that the water temperature tends to overshoot.
本発明は上記の問題点を解決し、湯沸器の点滅を少なく
でき、しかも湯温のオーバーシュートが生じ難く保温循
環の湯温制御を正確に行なえる給湯装置の提供を目的と
している。An object of the present invention is to solve the above-mentioned problems and provide a water heater that can reduce the number of flickerings of the water heater, is less likely to overshoot the water temperature, and can accurately control the water temperature during heat retention circulation.
（問題点を解決するための手段）
上記の目的を達成させるために本発明は次のような構成
としている。すなわち、湯沸器の出湯管から給湯栓に至
る往管と、給湯栓近傍の往管から前記湯沸器の給水管途
中に接続する突管とを備え、突管途中にＷｆｆｉポンプ
を設けて湯沸器と給湯栓との間に循環路を形成するもの
において、突管途中に電熱ヒータを具備する貯湯タンク
を設け、前記湯沸器と電熱ヒータとにより循環路内の湯
を保温するようにしている。(Means for Solving the Problems) In order to achieve the above object, the present invention has the following configuration. That is, it is equipped with an outgoing pipe leading from the hot water outlet pipe of the water heater to the hot water tap, and a projecting pipe that connects from the outgoing pipe near the hot water tap to the water supply pipe of the water heater, and a Wffi pump is installed in the middle of the projecting pipe. In a device that forms a circulation path between a water heater and a hot water tap, a hot water storage tank equipped with an electric heater is provided in the middle of the projecting pipe, and the hot water in the circulation path is kept warm by the water heater and the electric heater. I have to.
（作用）
循環路内の湯温が設定温度より低い場合、電熱ヒータに
よる加熱と湯沸器の燃焼による加熱とを適宜選択して循
環路内のｍ温を設定温度近傍に保温する。例えば、運転
開始初期および給湯停止後に循環路内の湯を循環させ、
湯温が設定温度より低い場合は電熱ヒータにより加熱す
る。ただし、湯温と設定温度との偏差がある一足値以上
の場合には電熱ヒータの加熱に加えて湯沸器を燃焼させ
腸を急速に加熱し、前記偏差がある程度小さくなったと
ころで燃焼を停止させる。その後設定温度までは電熱ヒ
ータにより加熱する。したがって偏差が小さいときには
湯沸器を燃焼させず湯沸器の点滅回数がむやみに多くな
るのを避け、電熱ヒータのみにより徐々に加熱するので
湯温のオーバーシュートが生じ難いのである。偏差が大
きい場合には湯沸器の燃焼により急速に加熱され、且つ
設定温度になる前に燃焼を停止させてその後は電熱ヒー
タにより加熱するので、やはり湯温のオーバーシュート
を生じ難いのである。(Function) When the temperature of the water in the circulation path is lower than the set temperature, heating by the electric heater or heating by combustion in the water heater is appropriately selected to keep the m temperature in the circulation path close to the set temperature. For example, by circulating hot water in the circulation path at the beginning of operation and after stopping hot water supply,
If the water temperature is lower than the set temperature, it will be heated using an electric heater. However, if the deviation between the water temperature and the set temperature exceeds a certain value, in addition to heating the electric heater, the water heater is burned to rapidly heat the intestine, and combustion is stopped when the deviation becomes small to a certain extent. let Thereafter, it is heated to the set temperature using an electric heater. Therefore, when the deviation is small, the water heater is not combusted to avoid an unnecessary increase in the number of blinks of the water heater, and the water is gradually heated only by the electric heater, making it difficult to overshoot the water temperature. If the deviation is large, the water will be heated rapidly by combustion in the water heater, and the combustion will be stopped before the set temperature is reached, and then the water will be heated by the electric heater, so overshoot in the water temperature is unlikely to occur.
（実施例）
第１図において、（１）は給湯装置本体であり、第１の
湯沸器（２）および第２の湯沸器（３）を内蔵している
。第１、第２の湯沸器（２Ｌ （３）は並列に接続さ
れ、共通の給水管（４）から給水される。（５）は給湯
栓（６）に至る往管、（７）は給湯栓（６）から前記給
水管（４）の途中に接続する突管であり、突管（７）に
は逆止弁（８）、Ｗ環ポンプ（ＱＬｌｔ熱ヒータ（ｌＯ
）を備える貯湯タンク（１１）を設けている。（！２）
は前記給水管（４）の途中から分岐して往管（５）に接
続するバイパス管であり、電気的駆動手段を備えた流量
調節器（１３）を途中に有する。（１４）は往管（５）
のバイパス管（１２）との合流点より下流側に設けた温
度検出器である。（１５）は給水管（４）のバイパス管
（１２）との分岐点より下流側でかつ突管（７）との合
流点より一曇暴ｉ暴ｉ上流側に設けた水量センサであり
、（１６） 、 （１７）はそれぞれ逆止弁である。(Example) In FIG. 1, (1) is a main body of a water heater, which incorporates a first water heater (2) and a second water heater (3). The first and second water heaters (2L) (3) are connected in parallel and are supplied with water from a common water supply pipe (4). (5) is the outgoing pipe leading to the hot water tap (6), and (7) is This is a projecting pipe that connects from the hot water tap (6) to the middle of the water supply pipe (4), and the projecting pipe (7) is equipped with a check valve (8), a W-ring pump (QLlt thermal heater (lO
) is provided with a hot water storage tank (11). (!2)
is a bypass pipe that branches off from the middle of the water supply pipe (4) and connects to the outgoing pipe (5), and has a flow rate regulator (13) equipped with an electric drive means in the middle. (14) is the outgoing pipe (5)
This is a temperature detector provided downstream from the junction with the bypass pipe (12). (15) is a water flow sensor installed downstream of the branch point of the water supply pipe (4) with the bypass pipe (12) and upstream of the confluence with the projecting pipe (7); (16) and (17) are check valves, respectively.
本実施例においては、前記第１、第２の湯沸器（２）、
（３）はそれぞれ熱交換器（２１）、（３１） の入
水側に設けた水量センサ（２２） 、（３２）と温度検
出器（２３） 、（３３）とが検出する入水量、入水温
と、図示しないリモコンの設定温度（ＴＳ）とに基づい
て加熱量を演算し、バーナ（２４）、（３４）の燃焼量
を制御するようにしている。また、それぞれ流量調節器
（２，５） 、（３５）を備えており、燃焼量により給
湯温度を制御できる最大能力を越えないようにそれぞれ
の湯沸器（２）、（３）の設定温度（ＴＳ２）、（ＴＳ
３）に応じて自動的に通水量を調節するようにしている
。但し、第２の湯沸器（３）の流量調節器（３５）は水
量センサ（１５）の検出流量が所定流量以下の場合は全
開位置に制御され、所定流量以上では上記の如く湯沸器
の設定温度（ＴＳ３）に応じた位置に制御される。In this embodiment, the first and second water heaters (2),
(3) is the amount of water inlet and the temperature of inlet water detected by the water amount sensors (22), (32) and temperature detectors (23), (33) installed on the water inlet side of the heat exchangers (21), (31), respectively. The amount of heating is calculated based on the set temperature (TS) of a remote controller (not shown), and the amount of combustion of the burners (24) and (34) is controlled. In addition, each water heater (2, 5) is equipped with a flow rate regulator (35), and the set temperature of each water heater (2), (3) is set so as not to exceed the maximum capacity that can control the hot water temperature depending on the combustion amount. (TS2), (TS
3) The water flow rate is automatically adjusted according to the above. However, the flow rate regulator (35) of the second water heater (3) is controlled to the fully open position when the flow rate detected by the water flow sensor (15) is below a predetermined flow rate, and when the flow rate is above the predetermined flow rate, the water heater is closed as described above. The position is controlled according to the set temperature (TS3).
このような構成からなる給湯装置の作用を説明する。最
初に運転スイッチ（図示せず）が投入されたとき、給湯
栓（６）が閉成されていれば給水管（４）からの給水は
行われないから水量センサ（］５〉は流動を検出せず、
この場合には電熱ヒータ（１０）に電源が投入されると
共に循環ポンプ（９）が付勢される。流量調節器（３５
）は水量センサ（１５）の検出流量が所定流量（例えば
５１／ｗｈ ｉ ｎ ）以下の場合は全閉位置に制御さ
れるのであるから、湯は第１の湯沸器（２）のみに流れ
る。而して、第１の湯沸器（２）、往管（５）突管（７
）等からなる循環回路で湯をＭｍさせ、往管（５）途中
に設けた温度検出器（１４）で循環湯温を検出する。検
出温度がリモコンの設定温度（ＴＳ）より低い場合、そ
の温度偏差が第１の偏差（例えば１５ｄｅｇ・）以上の
場合には第１の湯沸器（２）のバーナ（２４）を燃焼さ
せる。したがって循環湯は電熱ヒータ（１０）と第１の
湯沸器（２）とにより加熱される。その結果、温度検出
器（１４）の検出温度と設定温度との偏差が第２の偏差
（例えば１２ｄｅｇ、 ）以下になればバーナ（２４ン
の燃焼を停止し、以後電熱ヒータ（ｌＯ）のみで加熱す
る。そして温度検出器（１４）が設定温度（ＴＳ）以上
を検出すると電熱ヒータ（ｌＯ）への通電が停止される
。The operation of the water heater having such a configuration will be explained. When the operation switch (not shown) is turned on for the first time, if the hot water tap (6) is closed, water will not be supplied from the water supply pipe (4), so the water flow sensor (5) will detect the flow. Without,
In this case, the electric heater (10) is powered on and the circulation pump (9) is energized. Flow rate regulator (35
) is controlled to the fully closed position when the detected flow rate of the water flow sensor (15) is less than a predetermined flow rate (for example, 51/wh i n ), so hot water flows only to the first water heater (2). . Therefore, the first water heater (2), the outgoing pipe (5), the projecting pipe (7)
) etc., the hot water is heated to Mm, and the temperature of the circulating water is detected by a temperature detector (14) installed in the middle of the outgoing pipe (5). When the detected temperature is lower than the set temperature (TS) of the remote control, and when the temperature deviation is greater than or equal to a first deviation (for example, 15 deg.), the burner (24) of the first water heater (2) is ignited. Therefore, the circulating hot water is heated by the electric heater (10) and the first water heater (2). As a result, if the deviation between the temperature detected by the temperature detector (14) and the set temperature becomes less than the second deviation (for example, 12 degrees), the combustion of the burner (24) is stopped, and from then on, only the electric heater (IO) is used. Then, when the temperature detector (14) detects a temperature equal to or higher than the set temperature (TS), power supply to the electric heater (lO) is stopped.
さらに、設定温度（ＴＳ）以上を一定時間検出し続ける
と循環ポンプ（９）も停止させる。また、最初の検出温
度と設定温度（ＴＳ）との偏差が第１の偏差（ｔ５ｄｅ
ｙ、）以内であった場合にはバーナ（２４）は燃焼させ
ず、電熱ヒータ（ｌＯ）のみで加熱し、以下同様に設定
温度（ＴＳ）以上を検出すると電熱ヒータ（１０）によ
る加熱を停止し、設定温度（ＴＳ）以上が一定時間続く
と循環ポンプ（９）を停止させるのである。また、最初
の検出温度が既に設定温度（ＴＳ）以上であった場合に
は、電熱ヒータ（１０）への通電を停止し、上記一定時
間設定温度（ＴＳ）以上を検出し続ければｖ４環ポンプ
（９）も停止する。Further, if the temperature continues to be detected at or above the set temperature (TS) for a certain period of time, the circulation pump (9) is also stopped. Also, the deviation between the first detected temperature and the set temperature (TS) is the first deviation (t5de
If the temperature is within y, ), the burner (24) does not burn and heats only with the electric heater (lO), and in the same way, when the set temperature (TS) or higher is detected, heating with the electric heater (10) is stopped. However, if the temperature exceeds the set temperature (TS) for a certain period of time, the circulation pump (9) is stopped. In addition, if the first detected temperature is already higher than the set temperature (TS), the power to the electric heater (10) is stopped, and if the temperature continues to be detected above the set temperature (TS) for the above-mentioned period of time, the v4 ring pump (9) also stops.
さて、自然冷却により循環回路内の湯はやがて冷えてく
るが、温度検出器（１４）の検出温度が設定温度（ＴＳ
）より一定温度（例えば３ ｄｅ、９ 、） 以上下が
ると再び保温循環運転に入る。すなわち、電熱ヒータ（
１０）に通電されると共に循環ポンプ（９）が付勢され
、再び上記の如く動作するのである。Now, the hot water in the circulation circuit will eventually cool down due to natural cooling, but the temperature detected by the temperature detector (14) will be the set temperature (TS).
) When the temperature falls below a certain level (for example, 3 de, 9 de, ), the heat-retaining circulation operation is resumed. In other words, an electric heater (
10) is energized, the circulation pump (9) is energized, and it operates as described above again.
次に給湯時の作用を説明する。給湯栓（６）が開成され
ると、給水管（４）から給水されて水量センサ（１５）
がこれを検圧し、保温Ｗｆｆｉｆｆ中であった場合には
電熱ヒータ（ｌＯ）および循環ポンプ（９）への通電を
停止する。第１の湯沸器（２）の水量センサ（２２）が
最低作動水量（２１／ｗｉｎ）以上を検出すると加熱を
開始する。ここで第１の湯沸器（２）の設定温度（ＴＳ
２）は、リモコンの設定温度（ＴＳ）より高い温度に設
定される。すなわち、
ＴＳ２二ＴＳ十ヱ
であり、改は水量センサ（２２ンの流量に応じてあらか
じめ設定している。−力、バイパス管（１２）に設けた
流量調節器（１３）はリモコンの設定温度（ＴＳ）を目
標として制御される。而して、第１の湯沸器（２）で加
熱された高温（ＴＳ２）の漏とバイパス管（１２）から
供給された水とが混合され、温度検出器（１４）の検出
温度に基づいて流量調節器（１３）が水量を調節して設
定温度（ＴＳ）の混合湯が給湯される。Next, the action during hot water supply will be explained. When the hot water tap (6) is opened, water is supplied from the water supply pipe (4) and the water flow sensor (15)
detects this pressure, and if the temperature is being kept warm, the electric heater (lO) and the circulation pump (9) are de-energized. When the water amount sensor (22) of the first water heater (2) detects a minimum operating water amount (21/win) or more, heating starts. Here, the set temperature (TS
2) is set to a higher temperature than the set temperature (TS) of the remote controller. In other words, there are TS22 and TS10, and the modified water flow sensor (22) is preset according to the flow rate. (TS).The high temperature (TS2) leakage heated by the first water heater (2) and the water supplied from the bypass pipe (12) are mixed, and the temperature A flow rate regulator (13) adjusts the amount of water based on the temperature detected by the detector (14), and mixed hot water at a set temperature (TS) is supplied.
大量の給湯を行う場合、すなわち水量センサ（１５）の
流量が所定流量（５１／ ｗｉｎ）以上になると全閉位
置に制御されていた流量調節器（３５）が開かれ、第２
の湯沸器（３）にも通水される。第２の湯沸器（３）も
第１の湯沸器（２）と同様にリモコンの設定温度より高
い設定温度（ＴＳ３）に加熱するのである。第１、第２
の湯沸器（２）、（３）で加熱された腸はバイパス管（
１２）からの水と混晶されて給湯される。When a large amount of hot water is to be supplied, that is, when the flow rate of the water flow sensor (15) exceeds a predetermined flow rate (51/win), the flow rate regulator (35), which was controlled to the fully closed position, is opened and the second
Water is also passed through the water heater (3). Similarly to the first water heater (2), the second water heater (3) is heated to a set temperature (TS3) higher than the set temperature on the remote controller. 1st, 2nd
The intestines heated in the water heaters (2) and (3) are passed through the bypass tube (
12) is mixed with water from 12) to provide hot water.
給湯栓（６）が閉成されると水量センサ（１５）が給水
停止を検出し、最初の状態に戻る。すなわち、電熱ヒー
タ（１０）に電源が投入されると共に循環ポンプ（９）
が付勢され循環湯温を検出し、その結果必要があれば保
温運転を行なうのである。When the hot water tap (6) is closed, the water flow sensor (15) detects that the water supply has stopped and returns to the initial state. That is, the electric heater (10) is turned on and the circulation pump (9) is turned on.
is energized and detects the temperature of the circulating water, and as a result, if necessary, heat retention operation is performed.
（発明の効果）
本発明は以下に示すようなすぐれた効果をαするもので
ある。すなわち、湯沸器と給湯栓との間の管路中の湯を
設定温度近傍に保温でき、保温のために湯沸器の点滅が
むやみに多くなることを防止でき、しかも循環湯温と設
定温度との偏差が小さくなると電気ヒータにより比較的
緩やかに加熱するので循環路内の湯温のバラツキを少な
くすることができ、湯温のオーバーシュートも発生しに
くいのである。(Effects of the Invention) The present invention provides the following excellent effects. In other words, the water in the pipe between the water heater and the hot water faucet can be kept close to the set temperature, and the water heater can be prevented from blinking unnecessarily to keep it warm. When the deviation from the temperature becomes smaller, the electric heater heats the water relatively slowly, which reduces the variation in the water temperature in the circulation path, and makes it difficult for overshoots to occur in the water temperature.
ゲ 図面の簡単な説朗 第１図は本発明の実施例を示す全体構成図である。Ge simple explanation of drawings FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.
（１）・・・給湯装置本体 （２）・・・第１の湯沸器 （３）・・・第２の湯沸器 （４）・・・給水管 （５）・・・往管 （６）・・・給湯栓 （７）・・・突管 （９）・・・循環ポンプ （１０）・・・電熱ヒータ （１１）・・・貯湯タンク(1)... Water heater body (2)...first water heater (3)...Second water heater (4)...Water supply pipe (5)... Outgoing pipe (6)...Hot water tap (7)...projection pipe (9)...Circulation pump (10)...Electric heater (11)...Hot water storage tank
Claims (1)
往管から前記湯沸器の給水管途中に接続する戻管とを備
え、戻管途中に循環ポンプを設けて湯沸器と給湯栓との
間に循環路を形成するものにおいて、戻管途中に電熱ヒ
ータを具備する貯湯タンクを設け、前記湯沸器と電熱ヒ
ータとにより循環路内の湯を保温するようにしたことを
特徴とする給湯装置。It is equipped with an outgoing pipe leading from the hot water outlet pipe of the water heater to the hot water tap, and a return pipe that connects from the outgoing pipe near the hot water tap to the water supply pipe of the water heater, and a circulation pump is installed in the middle of the return pipe to heat water. In a device that forms a circulation path between a water heater and a hot water tap, a hot water storage tank equipped with an electric heater is provided in the middle of the return pipe, and the hot water in the circulation path is kept warm by the water heater and the electric heater. A water heater characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070903A JPS63238356A (en) | 1987-03-24 | 1987-03-24 | Hot water supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070903A JPS63238356A (en) | 1987-03-24 | 1987-03-24 | Hot water supplier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63238356A true JPS63238356A (en) | 1988-10-04 |
| JPH0343543B2 JPH0343543B2 (en) | 1991-07-02 |
Family
ID=13444953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62070903A Granted JPS63238356A (en) | 1987-03-24 | 1987-03-24 | Hot water supplier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63238356A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0293652U (en) * | 1989-01-12 | 1990-07-25 | ||
| JPH02213645A (en) * | 1989-02-13 | 1990-08-24 | Takagi Ind Co Ltd | Instantaneous hot water boiler |
| JPH02259363A (en) * | 1989-03-31 | 1990-10-22 | Takagi Ind Co Ltd | Tap-controlled water heater |
| JPH03217753A (en) * | 1990-01-24 | 1991-09-25 | Takagi Ind Co Ltd | Insulating, circulating and operating method for circulation type hot water supplying apparatus |
| JP2009047370A (en) * | 2007-08-21 | 2009-03-05 | Osaka Gas Co Ltd | Heat storage radiation system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2668861C2 (en) * | 2013-04-02 | 2018-10-03 | Тиги Лтд. | In-line heated solar thermal storage collector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59133917U (en) * | 1983-02-28 | 1984-09-07 | 株式会社東芝 | Water heater |
| JPS6043935U (en) * | 1983-08-31 | 1985-03-28 | 株式会社ノーリツ | Freeze prevention device for water heaters |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043935B2 (en) * | 1981-05-13 | 1985-10-01 | 将男 小林 | Equipment for forming soft food dough into spheres |
-
1987
- 1987-03-24 JP JP62070903A patent/JPS63238356A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59133917U (en) * | 1983-02-28 | 1984-09-07 | 株式会社東芝 | Water heater |
| JPS6043935U (en) * | 1983-08-31 | 1985-03-28 | 株式会社ノーリツ | Freeze prevention device for water heaters |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0293652U (en) * | 1989-01-12 | 1990-07-25 | ||
| JPH02213645A (en) * | 1989-02-13 | 1990-08-24 | Takagi Ind Co Ltd | Instantaneous hot water boiler |
| JPH02259363A (en) * | 1989-03-31 | 1990-10-22 | Takagi Ind Co Ltd | Tap-controlled water heater |
| JPH03217753A (en) * | 1990-01-24 | 1991-09-25 | Takagi Ind Co Ltd | Insulating, circulating and operating method for circulation type hot water supplying apparatus |
| JP2009047370A (en) * | 2007-08-21 | 2009-03-05 | Osaka Gas Co Ltd | Heat storage radiation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0343543B2 (en) | 1991-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |