JPH0933107A - Measuring method for remaining amount of bath water - Google Patents
Measuring method for remaining amount of bath waterInfo
- Publication number
- JPH0933107A JPH0933107A JP7185743A JP18574395A JPH0933107A JP H0933107 A JPH0933107 A JP H0933107A JP 7185743 A JP7185743 A JP 7185743A JP 18574395 A JP18574395 A JP 18574395A JP H0933107 A JPH0933107 A JP H0933107A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- bathtub
- flow rate
- hot
- circulation
- 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
Landscapes
- Control For Baths (AREA)
Abstract
Description
【0001】[0001]
【発明が属する技術分野】本発明は、浴槽に自動的に設
定水位まで湯張りを行う機能を有する風呂給湯器等の加
熱循環システムに用いられ、浴槽内の湯水残量を計測す
る方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the remaining amount of hot and cold water in a bathtub, which is used in a heating circulation system such as a bath water heater having a function of automatically filling the bathtub with water up to a set water level.
【0002】[0002]
【従来の技術】浴槽に自動的に設定水位まで湯張りを行
なう場合には、浴槽内に湯水が残っていると浴槽の規定
容量から湯水残量を引いた差分の容量の湯を浴槽に給湯
する必要がある。ところで、風呂給湯器は循環ポンプを
用いて浴槽内の湯水を熱交換器に循環させて加熱するよ
うに構成されている。この場合、熱交換器を介して湯水
に伝達される熱量が一定であれば、湯水残量が少ないほ
ど湯水温度の上昇は速くなる。従って、湯水への伝達熱
量と浴槽内の湯水温度の上昇速度との相関関係から湯水
残量を知ることができる。そこで、従来は熱源の発熱量
と熱交換器の効率とから循環する湯に伝達される熱量を
求めると共に、浴槽内の湯水温度の上昇速度を熱交換器
の上流側の循環経路に設けた温度センサにより検知し
て、湯水残量を計測している。2. Description of the Related Art When a bathtub is automatically filled with water to a set water level, if hot water remains in the bathtub, a difference in volume of hot water from the specified volume of the bathtub will be supplied to the bathtub. There is a need to. By the way, the bath water heater is configured to circulate hot water in the bathtub through a heat exchanger using a circulation pump to heat the water. In this case, if the amount of heat transferred to the hot water through the heat exchanger is constant, the hot water temperature rises faster as the hot water residual amount decreases. Therefore, the amount of remaining hot water can be known from the correlation between the amount of heat transferred to the hot water and the rising speed of the temperature of the hot water in the bathtub. Therefore, conventionally, the amount of heat transferred to the circulating hot water is obtained from the heat generation amount of the heat source and the efficiency of the heat exchanger, and the rising speed of the hot and cold water temperature in the bathtub is set to the temperature provided in the circulation path on the upstream side of the heat exchanger. The amount of hot and cold water remaining is detected by the sensor.
【0003】[0003]
【発明が解決しようとする課題】上記従来の方法により
湯水残量を求める場合、熱交換器を通過して加熱された
湯が浴槽内に戻ると、浴槽内の湯水と完全に混ざり合い
全体に均一な温度になった状態でその一部が再び熱交換
器へ循環されることを前提としている。ところが、実際
には循環路の上流端である吸込口と下流端である吐出口
とは浴槽の内壁の比較的近接した位置に設けられる場合
が多く、このように循環路の吸込口と吐出口とが近接配
置されると、熱交換器を通って加熱された湯水が吐出口
から浴槽内に吐出されても、浴槽内の湯水と完全に混ざ
り合う前に吸込口から循環路に吸い込まれ、いわゆるシ
ョートサーキットと呼ばれる現象が生じる。一方、湯水
の温度は熱交換器より上流の循環路内に設けた温度セン
サにより検知しており、このようにショートサーキット
が生じると該温度センサは浴槽内の湯水より高い温度を
検知し、浴槽内の湯水残量を実際の湯水残量より少なく
計測する傾向が生じる。そして、実際の湯水残量より少
なく計測された湯水残量に基づいて給湯を行うと、給湯
量が必要以上に多くなり浴槽から湯水が溢れるという不
具合が生じる。When the amount of hot water remaining is determined by the above-mentioned conventional method, when the hot water that has passed through the heat exchanger and returns to the bathtub, it is completely mixed with the hot water in the bathtub and the whole is mixed. It is assumed that a part of the uniform temperature is recirculated to the heat exchanger. However, in reality, the suction port, which is the upstream end of the circulation path, and the discharge port, which is the downstream end, are often provided at positions relatively close to each other on the inner wall of the bathtub. When and are arranged close to each other, even if the hot water heated through the heat exchanger is discharged into the bathtub from the discharge port, it is sucked into the circulation path from the suction port before being completely mixed with the hot water in the bathtub, A so-called short circuit phenomenon occurs. On the other hand, the temperature of the hot water is detected by a temperature sensor provided in the circulation path upstream of the heat exchanger. When such a short circuit occurs, the temperature sensor detects a temperature higher than that of the hot water in the bathtub, There is a tendency to measure the remaining amount of hot and cold water inside the actual amount of hot water and water less than the actual amount. If hot water is supplied based on the measured remaining hot water amount less than the actual remaining hot water amount, the hot water supply amount becomes unnecessarily large and the hot water overflows from the bathtub.
【0004】そこで本発明は、上記の問題点に鑑み、浴
槽内の湯水残量を正確に計測し得る方法を提供すること
を目的とする。In view of the above problems, it is an object of the present invention to provide a method capable of accurately measuring the amount of hot water remaining in a bathtub.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明は、循環路を介して浴槽の湯水を加熱する熱交
換器と浴槽内の湯水を循環させる循環ポンプとを備えた
加熱循環システムに用いられ、熱交換器より上流に位置
するように循環路内に設けた温度センサが検知する湯水
温度の上昇速度と熱交換器を介して上記湯水に伝達され
る熱量とから浴槽内の湯水残量を求める方法において、
上記循環路の循環流量を検知し、該循環流量が少ないほ
ど上記湯水残量を多くする補正を行うことを特徴とす
る。In order to achieve the above object, the present invention provides a heating circulation including a heat exchanger for heating hot and cold water in a bathtub through a circulation path and a circulation pump for circulating hot and cold water in the bathtub. Used in the system, the rate of rise of the hot and cold water temperature detected by the temperature sensor installed in the circulation path located upstream of the heat exchanger and the amount of heat transferred to the hot water through the heat exchanger cause In the method of determining the amount of hot water remaining,
It is characterized in that the circulation flow rate of the circulation path is detected, and the smaller the circulation flow rate, the larger the amount of hot water remaining is corrected.
【0006】実際に配管を行うと、各施工状態の相違に
より配管抵抗が異なり循環流量が相違する場合が生じ
る。循環路の内径が同一であればれば循環路内の循環流
量が少ないほど循環流速が遅くなる。該循環流速が遅い
と熱交換器を通って加熱された湯が吐出口から浴槽内に
戻る際に浴槽内への吐出速度が遅くなるため加熱された
湯が浴槽内に十分に拡散されず循環路の吐出口近傍に滞
留する。一方、循環路の吸込口は上記のごとく該吐出口
の近傍に設けられているため、浴槽内に拡散せずに循環
路の吐出口から吸込口へとショートサーキットする湯の
量が多くなる。従って、循環路内の流量が少ないほどシ
ョートサーキットする湯量が増え、温度センサで検知さ
れる湯水の温度上昇速度が早くなり実際の湯水残量より
湯水残量が少ないと測定することになる。そこで、循環
路内の流量を検知し、該流量が少ないほど測定される湯
水残量を増加する補正を行い、計測される湯水残量を実
際の湯水残量に近づけるようにした。When piping is actually carried out, the pipe resistance and the circulating flow rate may differ due to the difference in each working condition. If the inner diameter of the circulation path is the same, the circulation flow velocity becomes slower as the circulation flow rate in the circulation path decreases. When the circulation flow velocity is slow, the rate of discharge of hot water heated through the heat exchanger into the bathtub from the discharge port slows down, so the heated hot water is not sufficiently diffused in the bathtub and circulates. Remains near the outlet of the passage. On the other hand, since the suction port of the circulation path is provided near the discharge port as described above, the amount of hot water that short-circuits from the discharge port of the circulation path to the suction port without diffusion into the bathtub increases. Therefore, as the flow rate in the circulation path decreases, the amount of hot water that short-circuits increases, the temperature rise speed of the hot water detected by the temperature sensor becomes faster, and it is determined that the hot water residual amount is less than the actual hot water residual amount. Therefore, the flow rate in the circulation path is detected, and the smaller the flow rate, the higher the measured hot water remaining amount is corrected so that the measured hot water residual amount approaches the actual hot water residual amount.
【0007】尚、循環路中に羽根車等の可動部を用いた
流量計を介設して循環流量を検知するようにしてもよい
が、浴槽内の湯水にはごみや毛髪等の異物が混入するこ
とが多いため可動部に引っ掛かり流量計が機能しなくな
る場合が生じる。ところで、熱交換器を介して湯水に伝
達される熱量が一定であれば循環流量が少ないほど熱交
換器の上流側の湯水温と下流側の湯水温との温度差が大
きくなる。そこで、循環路中に流量計を設けることなく
上記温度差と上記熱量とから循環流量を求めるようにし
た。Although a flow meter using a movable part such as an impeller may be provided in the circulation path to detect the circulation flow rate, foreign matter such as dust and hair is contained in the hot and cold water in the bathtub. Since it is often mixed in, the flow meter may get stuck on the moving part and fail. By the way, if the amount of heat transferred to the hot water via the heat exchanger is constant, the smaller the circulation flow rate, the larger the temperature difference between the hot water temperature on the upstream side and the hot water temperature on the downstream side of the heat exchanger. Therefore, the circulation flow rate is determined from the temperature difference and the heat quantity without providing a flow meter in the circulation path.
【0008】[0008]
【発明の実施の形態】1は浴槽であり、内部に湯水11
を有している。該湯水11は熱源であるバーナ2によっ
て加熱されるものであり、熱媒ポンプ31によって循環
される水を熱媒とし、気−液型の熱交換器21によって
熱媒を加熱し、液−液型の熱交換器3に供給する。一
方、浴槽1内の湯水11は循環ポンプ4によって熱交換
器3内を循環するように構成されている。そして、該熱
交換器3に循環される湯水11の入口温度と出口温度と
は各々温度センサ41・42によって検知される。とこ
ろで、熱媒は熱交換器3に供給され浴槽1内の湯水11
を加熱するだけではなく、循環路8の途中で床暖房用の
温水マット5に分岐され室内暖房としても使用される。
該温水マット5による暖房のオンオフは開閉弁51によ
って行なうものであり、開閉弁51を開弁すると温水マ
ット5に熱媒が供給され室内暖房が行なわれ、また開閉
弁51を閉弁すると温水マット5への熱媒の供給が禁止
され、熱媒は全て熱交換器3に供給される。また、温度
センサ42と浴槽1との間には開閉バルブ61を介して
湯張り機構6が接続されており、開閉バルブ61を開弁
すると湯張り機構6により加熱された湯が浴槽1へ供給
され、自動的に浴槽1への湯張りが行なわれるように構
成されている。BEST MODE FOR CARRYING OUT THE INVENTION 1 is a bathtub, and hot water 11
have. The hot and cold water 11 is heated by the burner 2 which is a heat source. The water circulated by the heat medium pump 31 is used as a heat medium, and the heat medium is heated by the gas-liquid type heat exchanger 21, and the liquid-liquid To the mold heat exchanger 3. On the other hand, the hot water 11 in the bathtub 1 is configured to circulate in the heat exchanger 3 by the circulation pump 4. Then, the inlet temperature and the outlet temperature of the hot water 11 circulated in the heat exchanger 3 are detected by the temperature sensors 41 and 42, respectively. By the way, the heat medium is supplied to the heat exchanger 3 and the hot water 11 in the bathtub 1
Not only is it heated, but it is also branched into the hot water mat 5 for floor heating in the middle of the circulation path 8 and used for indoor heating.
On / off of heating by the hot water mat 5 is performed by the open / close valve 51. When the open / close valve 51 is opened, the heating medium is supplied to the hot water mat 5 to perform indoor heating, and when the open / close valve 51 is closed, the hot water mat 5 is opened. Supply of the heat medium to 5 is prohibited, and all the heat medium is supplied to the heat exchanger 3. A water filling mechanism 6 is connected between the temperature sensor 42 and the bathtub 1 via an opening / closing valve 61. When the opening / closing valve 61 is opened, the hot water heated by the water filling mechanism 6 is supplied to the bathtub 1. The bathtub 1 is automatically filled with water.
【0009】上記構成において、湯張り機構6を用いて
自動的に湯張りを行なうに際し、湯張り機構6によりど
のくらいの量の湯を浴槽1に追加するかを決定するた
め、浴槽1内に湯水11がどのくらい残っているかを知
る必要がある。In the above structure, when automatically filling water using the water filling mechanism 6, the hot water filling mechanism 6 determines how much water to add to the bathtub 1, so You need to know how much 11 is left.
【0010】熱交換器3を介して湯水11に伝達される
熱量をQ(Kcal/min)とし、温度センサ41に
より検知される浴槽内の湯水11の温度上昇速度をVt
(℃/min)とすると、湯水11の残量W(l(リッ
トル))は、 Q=W・Vtより W=Q/Vt ・・・(1) で表される。尚、浴槽1内の湯水温は上記のごとく熱交
換器3の上流側に設けた温度センサ41で検出するの
で、浴槽1内に温度センサを設けなくてもよい。The amount of heat transferred to the hot and cold water 11 via the heat exchanger 3 is Q (Kcal / min), and the rate of temperature rise of the hot and cold water 11 in the bathtub detected by the temperature sensor 41 is Vt.
(C / min), the remaining amount W (l (liter)) of the hot water 11 is expressed by Q = W · Vt, W = Q / Vt (1) Since the temperature of the hot water in the bathtub 1 is detected by the temperature sensor 41 provided on the upstream side of the heat exchanger 3 as described above, the temperature sensor may not be provided in the bathtub 1.
【0011】但し、循環ポンプ4による循環流量Mは配
管抵抗等の影響を受け易く、同一のポンプを使用しても
配管状態によってその循環流量Mが相違する場合があ
る。循環路の配管径は同一であるため、このように循環
流量Mが相違すると循環流速が相違することになる。即
ち、配管抵抗が小さく循環流量Mが多い場合には循環流
速が速く、配管抵抗が大きく循環流量Mが少ない場合に
は循環流速が遅いことになる。一方、浴槽1内の湯水1
1が循環路に吸い込まれる吸込口71と循環路から浴槽
1内へと吐出される吐出口72とは比較的近接して設け
られており、循環流速が遅い場合には吐出口72から浴
槽1内へ吐出された湯が浴槽1内に拡散する前に吸込口
71に吸い込まれる割合が増加する。すると、温度セン
サ41が検知する温度は浴槽1内の湯水11の実際の温
度より高温になる。そのため上記温度上昇速度Vtが大
きくなり、上記(1)式より残量Wは実際の残量より少
なく演算される。該演算結果に基づいて湯張りを行えば
必要以上の量の湯が追加され、浴槽1から湯水11が溢
れる場合が生じる。However, the circulation flow rate M by the circulation pump 4 is easily affected by the piping resistance and the like, and even if the same pump is used, the circulation flow rate M may differ depending on the piping state. Since the pipe diameters of the circulation paths are the same, if the circulation flow rate M is different, the circulation flow velocity is also different. That is, when the piping resistance is small and the circulation flow rate M is large, the circulation flow rate is fast, and when the piping resistance is large and the circulation flow rate M is small, the circulation flow rate is slow. On the other hand, hot water 1 in the bathtub 1
The suction port 71 for sucking 1 into the circulation path and the discharge port 72 for discharging from the circulation path into the bath 1 are provided relatively close to each other. The rate at which the hot water discharged inside is sucked into the suction port 71 before it diffuses into the bathtub 1 increases. Then, the temperature detected by the temperature sensor 41 becomes higher than the actual temperature of the hot water 11 in the bathtub 1. Therefore, the temperature rising speed Vt increases, and the remaining amount W is calculated to be smaller than the actual remaining amount from the above equation (1). If hot water filling is performed based on the calculation result, an unnecessarily large amount of hot water is added, and hot water 11 may overflow from the bathtub 1.
【0012】吐出口72から吐出された湯が浴槽1内に
拡散する前に吸込口71に吸い込まれる、いわゆるショ
ートサーキットは吐出口72からの湯の吐出速度が遅い
ほど多くなる。従って、循環流量を検知し上記(1)式
により演算される残量Wを循環流量に基づいて補正すれ
ばよい。尚、湯水11の循環路中に流量計を介設して循
環流量を検知するようにしてもよいが、浴槽1内の湯水
11にはごみや毛髪等の異物が混入することが多いため
流量計が機能しなくなる場合が生じる。そこで、例えば
風呂の追焚き単独運転時のように暖房運転が行なわれて
いない状態で、両温度センサ41・42の検知温度差Δ
t(℃)を基に循環流量q(l/min)を以下の
(2)式により求め、EEPROM(消去可能な電気的
書換式読取専用メモリ)等の記憶手段に記憶させること
とした。但し、cは比熱(Kcal/l・℃)である。
尚、暖房運転が行なわれていない状態で循環流量qを求
めるのは、温水マット5へ熱媒が流れていると、熱交換
器3を介して湯水11に伝達される熱量が変動し、qを
求めることができないからである。The so-called short circuit in which the hot water discharged from the discharge port 72 is sucked into the suction port 71 before diffusing into the bathtub 1 increases as the discharge speed of the hot water from the discharge port 72 decreases. Therefore, the circulating flow rate may be detected and the remaining amount W calculated by the equation (1) may be corrected based on the circulating flow rate. Although a circulating meter may be provided in the circulation path of the hot water 11 to detect the circulating flow rate, foreign matter such as dust or hair is often mixed in the hot water 11 in the bathtub 1, so that the flow rate is There are cases in which the meter does not work. Therefore, for example, in the state where the heating operation is not performed as in the case of the bath additional heating operation, the temperature difference Δ detected by the temperature sensors 41 and 42 is Δ.
The circulating flow rate q (l / min) is calculated based on t (° C.) by the following equation (2) and stored in a storage means such as an EEPROM (erasable electrically rewritable read-only memory). However, c is a specific heat (Kcal / l.degree. C.).
The circulating flow rate q is obtained in the state where the heating operation is not performed. When the heat medium flows to the hot water mat 5, the amount of heat transferred to the hot water 11 via the heat exchanger 3 fluctuates. Because you cannot ask for.
【0013】 q=Q/(Δt・c) ・・・(2) そして、該循環流量qを基に補正係数Kを求め、該補正
係数Kを上記残量Wにかけて補正することとした。該補
正係数Kは例えば図2に示すように、循環流量qが最小
値(3(l/min))の場合に最大値(1.54)に
なり、循環流量qが増加するに伴って減少し、所定の循
環流量(12(l/min))を超えるとK=1として
実質的に補正しないようにした。尚、図2に示した循環
流量qと補正係数Kとの関係は吸込口71と吐出口72
との位置関係や形状、あるいは浴槽11の大きさ等によ
り決定されるものであり、図2に示した数値を変更した
り、qの増加に対してKが直線的に減少するのではなく
K=1に漸近する曲線状に減少するように設定してもよ
い。Q = Q / (Δt · c) (2) Then, the correction coefficient K is obtained based on the circulation flow rate q, and the correction coefficient K is corrected by multiplying the remaining amount W. For example, as shown in FIG. 2, the correction coefficient K has a maximum value (1.54) when the circulation flow rate q is the minimum value (3 (l / min)), and decreases as the circulation flow rate q increases. However, when the predetermined circulation flow rate (12 (l / min)) is exceeded, K = 1 is set so that the correction is not substantially performed. The relationship between the circulation flow rate q and the correction coefficient K shown in FIG. 2 is the suction port 71 and the discharge port 72.
It is determined by the positional relationship and shape with respect to, or the size of the bathtub 11, etc., and the value shown in FIG. It may be set so as to decrease in a curve that gradually approaches = 1.
【0014】尚、暖房運転と風呂の追焚き運転とが同時
に行われている場合、熱交換器3を介して湯水11に伝
達される熱量Qは温度センサ41・42の検知温度差Δ
tと循環流量qとを基に求められる。この場合の湯水残
量の補正は補正係数Kを残量Wにかけて補正してもよい
が、循環流量qを補正して結果的に湯水残量が補正され
るように算出してもよい。また、上記実施形態では液−
液型の熱交換器3を用いて熱媒を介して湯水を加熱する
ものを示したが、気−液型の熱交換器を用いて熱媒を介
さずに湯水を熱源により直接加熱するようにしても良
い。When the heating operation and the bath heating operation are performed at the same time, the heat quantity Q transferred to the hot water 11 via the heat exchanger 3 is the difference Δ in temperature detected by the temperature sensors 41 and 42.
It is calculated based on t and the circulation flow rate q. In this case, the correction of the remaining hot water amount may be performed by multiplying the correction coefficient K by the remaining amount W, but may be calculated by correcting the circulation flow rate q so that the remaining hot water amount is corrected. Further, in the above embodiment, the liquid-
Although the one in which hot water is heated through the heat medium using the liquid heat exchanger 3 is shown, the hot water is directly heated by the heat source without using the heat medium by using the gas-liquid heat exchanger. You can
【0015】ところで、上記実施形態では熱源としてバ
ーナを用いたが、電気式のヒータ等のその他のものを熱
源として使用してもよい。By the way, in the above embodiment, the burner is used as the heat source, but other things such as an electric heater may be used as the heat source.
【0016】[0016]
【発明の効果】以上の説明から明らかなように、本発明
によれば、循環路を介して熱交換器に循環される流量が
配管状態等により増減しても浴槽内の湯水残量を正確に
計測することができる。As is apparent from the above description, according to the present invention, even if the flow rate circulated to the heat exchanger through the circulation path is increased or decreased depending on the piping condition or the like, the amount of hot water remaining in the bathtub can be accurately determined. Can be measured.
【図1】本発明の一実施形態の構成を示す図FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.
【図2】循環流量qと補正係数Kとの関係を示す図FIG. 2 is a diagram showing a relationship between a circulation flow rate q and a correction coefficient K.
1 浴槽 2 バーナ 3 熱交換器(液−液型) 4 循環ポンプ 5 温水マット 6 湯張り機構 11 湯水 41 温度センサ 42 温度センサ 1 Bathtub 2 Burner 3 Heat Exchanger (Liquid-Liquid Type) 4 Circulation Pump 5 Hot Water Mat 6 Hot Water Filling Mechanism 11 Hot Water 41 Temperature Sensor 42 Temperature Sensor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山田 弘之 愛知県名古屋市中川区福住町2番26号 リ ンナイ株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroyuki Yamada 2-26 Fukuzumi-cho, Nakagawa-ku, Nagoya, Aichi Prefecture
Claims (2)
熱交換器と浴槽内の湯水を循環させる循環ポンプとを備
えた加熱循環システムに用いられ、熱交換器より上流に
位置するように循環路内に設けた温度センサが検知する
湯水温度の上昇速度と熱交換器を介して上記湯水に伝達
される熱量とから浴槽内の湯水残量を求める方法におい
て、上記循環路の循環流量を検知し、該循環流量が少な
いほど上記湯水残量を多くする補正を行うことを特徴と
する湯水残量計測方法。1. A heating and circulating system comprising a heat exchanger for heating hot and cold water in a bathtub through a circulation path and a circulation pump for circulating hot and cold water in the bathtub so that it is located upstream of the heat exchanger. In the method of determining the amount of hot and cold water in the bath from the rate of rise of the hot and cold water temperature detected by the temperature sensor provided in the circulation path and the amount of heat transferred to the hot water through the heat exchanger, the circulation flow rate of the circulation path is A method for measuring the remaining amount of hot and cold water, which comprises detecting and performing a correction to increase the remaining amount of hot and cold water as the circulating flow rate decreases.
度と下流における湯水の温度との温度差と、上記熱交換
器を介して湯水に伝達される熱量とから上記循環流量を
求めることを特徴とする請求項1記載の湯水残量計測方
法。2. The circulating flow rate is obtained from the temperature difference between the temperature of the hot water and the temperature of the hot water at the downstream of the heat exchanger, and the amount of heat transferred to the hot water via the heat exchanger. The hot water remaining amount measuring method according to claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18574395A JP3154222B2 (en) | 1995-07-21 | 1995-07-21 | Hot water level measurement method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18574395A JP3154222B2 (en) | 1995-07-21 | 1995-07-21 | Hot water level measurement method |
Publications (2)
Publication Number | Publication Date |
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JPH0933107A true JPH0933107A (en) | 1997-02-07 |
JP3154222B2 JP3154222B2 (en) | 2001-04-09 |
Family
ID=16176089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18574395A Expired - Lifetime JP3154222B2 (en) | 1995-07-21 | 1995-07-21 | Hot water level measurement method |
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JP (1) | JP3154222B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012208663A1 (en) * | 2012-05-23 | 2013-11-28 | BSH Bosch und Siemens Hausgeräte GmbH | Method for calibrating liquid measure of water-conducting household appliance, involves utilizing combination of measured parameter of electrical heating energy for heating liquid in household appliance with normal value of parameter |
JP2016156525A (en) * | 2015-02-23 | 2016-09-01 | 株式会社ノーリツ | Water heater |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107957282B (en) * | 2017-12-19 | 2019-02-19 | 中国水利水电科学研究院 | A kind of Cooling Water From Thermal Power Plants quantity of circulating water balance monitoring system |
-
1995
- 1995-07-21 JP JP18574395A patent/JP3154222B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012208663A1 (en) * | 2012-05-23 | 2013-11-28 | BSH Bosch und Siemens Hausgeräte GmbH | Method for calibrating liquid measure of water-conducting household appliance, involves utilizing combination of measured parameter of electrical heating energy for heating liquid in household appliance with normal value of parameter |
JP2016156525A (en) * | 2015-02-23 | 2016-09-01 | 株式会社ノーリツ | Water heater |
Also Published As
Publication number | Publication date |
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JP3154222B2 (en) | 2001-04-09 |
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