JP3205956B2 - Bath equipment - Google Patents
Bath equipmentInfo
- Publication number
- JP3205956B2 JP3205956B2 JP11665796A JP11665796A JP3205956B2 JP 3205956 B2 JP3205956 B2 JP 3205956B2 JP 11665796 A JP11665796 A JP 11665796A JP 11665796 A JP11665796 A JP 11665796A JP 3205956 B2 JP3205956 B2 JP 3205956B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- temperature
- amount
- water amount
- water
- 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
Landscapes
- Control For Baths (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、浴槽に自動的に設
定水量の湯張りを行う機能を有する風呂給湯器等の加熱
循環システムを備え、浴槽内の残水量を演算により求め
るようにした風呂装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath having a heating circulating system such as a bath water heater having a function of automatically filling a bathtub with a set amount of water, and calculating a remaining water amount in the bathtub by calculation. Related to the device.
【０００２】[0002]
【従来の技術】浴槽に自動的に設定水量の湯張りを行な
う場合には、浴槽内に湯水が残っていると湯が浴槽から
溢れるので浴槽の規定容量から残水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、
残水量が少ないほど湯水温度は高温になる。従って、湯
水への伝達熱量と浴槽内の湯水温度の上昇量との相関関
係から残水量を知ることができる。そこで、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量を熱交換器
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、残水量を計測している。2. Description of the Related Art When water is automatically filled in a bathtub with a set amount of water, if hot water remains in the bathtub, the hot water overflows from the bathtub. It is necessary to supply hot water to the bathtub. By the way, a bath water heater is configured to circulate hot water in a bathtub through a heat exchanger using a circulation pump to heat the bath. In this case, if the amount of heat transferred to the hot and cold water via the heat exchanger is constant,
The smaller the residual water amount, the higher the hot water temperature. Therefore, the amount of residual water can be known from the correlation between the amount of heat transferred to the hot water and the amount of increase in the temperature of the hot water in the bathtub. Therefore, the amount of heat transferred to the circulating hot water is determined from the heat value of the heat source and the efficiency of the heat exchanger, and the amount of increase in the temperature of the hot water in the bathtub is determined by a temperature sensor provided in a circulation path on the upstream side of the heat exchanger. Detects and measures remaining water.
【０００３】[0003]
【発明が解決しようとする課題】浴槽内の湯水を加熱す
る際湯水をかき回さないと水面付近が底面付近に比較し
て高温になる。残水量が比較的多い場合には高温部分と
低温部分との間の中間部分の湯水を循環路内に吸引する
ことになる。該中間部分の温度は浴槽内の平均温度に近
い温度になる。一方、残水量が少なく浴槽内に開口する
循環路の吸引口が水面のすぐ下に位置する場合には、浴
槽内の湯水の平均温度より高い温度を温度センサが検知
する。その結果、湯温上昇量が実際より大きく検出され
浴槽内に実際に残っている湯水量より少ない量しか残っ
ていないものと判断される。このように実際より少なく
判断された残水量に基づいて給湯を行うと湯水が浴槽か
ら溢れるおそれが生じる。If the hot water in the bathtub is not stirred when the hot water is heated, the temperature near the water surface becomes higher than that near the bottom surface. If the amount of remaining water is relatively large, hot water at an intermediate portion between the high-temperature portion and the low-temperature portion is sucked into the circulation path. The temperature of the middle part is close to the average temperature in the bathtub. On the other hand, when the amount of residual water is small and the suction port of the circulation path that opens into the bathtub is located immediately below the water surface, the temperature sensor detects a temperature higher than the average temperature of the hot water in the bathtub. As a result, the amount of hot water temperature rise is detected to be larger than the actual amount, and it is determined that only an amount of the hot water remaining in the bathtub is smaller than the actual amount. If hot water is supplied based on the remaining water amount determined to be less than the actual amount, hot water may overflow from the bathtub.
【０００４】そこで本発明は、前記の問題点に鑑み、浴
槽内の残水量を正確に計測し得る風呂装置を提供するこ
とを課題とする。[0004] In view of the above problems, an object of the present invention is to provide a bath apparatus that can accurately measure the amount of residual water in a bathtub.
【０００５】[0005]
【課題を解決するための手段】前記課題を解決するため
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が配設され、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
温上昇量と熱交換器を介して前記湯水に伝達される熱量
とから浴槽内の推定残水量を求める残水量演算手段を有
する風呂装置において、前記残水量演算手段は、演算さ
れた推定残水量が少ないほど残水量を多くする補正を行
うことを特徴とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a heating apparatus having a heat exchanger for heating hot water in a bathtub through a circulation path and a circulation pump for circulating hot water in the bathtub. A circulation system is provided, and the temperature inside the bathtub is determined from the amount of rise in hot water temperature detected by a temperature sensor provided in the circulation path so as to be located upstream of the heat exchanger and the amount of heat transmitted to the hot water through the heat exchanger. In the bath apparatus having the remaining water amount calculating means for obtaining the estimated remaining water amount, the remaining water amount calculating means performs a correction to increase the remaining water amount as the calculated estimated remaining water amount decreases.
【０００６】この場合、前記残水量演算手段は、加熱後
の湯温から加熱前の湯温を引いて求めた温度上昇量から
推定残水量を推定し、該推定残水量が少ないほど加熱後
の湯温を下げる補正をし、補正された加熱後の温度を用
いて再度残水量を求めることにより前記推定残水量を補
正するようにしてもよい。In this case, the residual water amount calculating means estimates an estimated residual water amount from a temperature rise amount obtained by subtracting a hot water temperature before heating from a hot water temperature after heating. The estimated remaining water amount may be corrected by making a correction to lower the hot water temperature and obtaining the remaining water amount again using the corrected temperature after heating.
【０００７】更には、前記循環路の循環流量を検知する
流量検出手段を備え、前記残水量演算手段は、該循環流
量が少ないほど前記推定残水量を多くする第２の補正を
行うようにしてもよい。Further, there is provided a flow rate detecting means for detecting a circulating flow rate in the circulation path, and the residual water amount calculating means performs a second correction for increasing the estimated residual water quantity as the circulating flow rate decreases. Is also good.
【０００８】そしてその場合には、前記循環路の循環流
量を検知する流量検出手段を備え、前記残水量演算手段
は、該循環流量が少ないほど加熱後の湯温を下げる補正
をし、補正された加熱後の温度を用いて再度残水量を求
めることにより前記推定残水量を補正するようにしても
よい。In this case, there is provided a flow rate detecting means for detecting a circulating flow rate in the circulating path, and the residual water amount calculating means makes a correction to lower the hot water temperature after the heating as the circulating flow rate is smaller. The estimated remaining water amount may be corrected by obtaining the remaining water amount again using the temperature after heating.
【０００９】[0009]
【発明の実施の形態】図１を参照して、１は浴槽であ
り、内部には湯水１１が残っている。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は循環路７
に介設された循環ポンプ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の熱交換器３に対しての入口の温度と
出口の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、熱交換器２１で加熱された熱媒は熱
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る。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。一方、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。尚、湯針を行う際に図示しない流量センサによ
り追加する湯量が測定される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes a bathtub, in which hot water 11 remains. 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 a gas-liquid type heat exchanger 21 so that the liquid-liquid The heat is supplied to the heat exchanger 3. On the other hand, the hot and cold water 11 in the bathtub 1 is
Is configured to circulate in the heat exchanger 3 by a circulation pump 4 interposed therebetween. The temperature of the inlet and outlet of the hot water 11 circulated through the heat exchanger 3 with respect to the heat exchanger 3 is detected by the temperature sensors 41 and 42, respectively. By the way, the heat medium heated in the heat exchanger 21 is supplied to the heat exchanger 3 and not only heats the hot and cold water 11 in the bathtub 1 but also branches into the hot water mat 5 for floor heating in the middle of the circulation path 8. Also used as indoor heating. On / off of the heating by the hot water mat 5 is performed by an on-off valve 51. When the on-off valve 51 is opened, a heating medium is supplied to the hot water mat 5 to perform indoor heating. Also, the on-off valve 51
Is closed, the supply of the heat medium to the hot water mat 5 is prohibited,
All the heat medium is supplied to the heat exchanger 3. On the other hand, a hot water filling mechanism 6 is connected between the temperature sensor 42 and the bathtub 1 via an open / close valve 61. When the open / close valve 61 is opened, hot water heated by the hot water filling mechanism 6 is supplied to the bathtub 1. And
The bathtub 1 is configured to be automatically filled with hot water. In addition, the amount of hot water to be added is measured by a flow rate sensor (not shown) when performing the hot water needle.
【００１０】前記構成において、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 construction, when the hot water is automatically filled using the hot water filling mechanism 6, the hot water is added to the hot tub 1 in order to determine how much hot water is to be added to the hot tub 1 by the hot water filling mechanism 6. We need to know how many 11 remain.
【００１１】熱交換器３を介して所定の時間内に湯水１
１に伝達される熱量をＱ（Ｋｃａｌ）とし、温度センサ
４１により検知される浴槽内の湯水１１の温度であっ
て、加熱前の温度をＴｃ（℃）・加熱後の温度をＴｈ
（℃）とすると、湯水１１の残水量Ｗ（Ｌ（リット
ル））は、 Ｑ＝Ｗ・（Ｔｈ−Ｔｃ）より Ｗ＝Ｑ／（Ｔｈ−Ｔｃ） ・・・（１） で表される。尚、浴槽１内の湯水温度は前記のごとく熱
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。尚、湯
水１１に伝達される熱量Ｑは温水マット５の使用状態に
かかわらず温度センサ４１・４２の検知温度差と後述す
る循環水量とにより検知することができる。The hot and cold water 1 is passed through the heat exchanger 3 within a predetermined time.
The amount of heat transmitted to the temperature 1 is Q (Kcal), the temperature of the hot water 11 in the bathtub detected by the temperature sensor 41, the temperature before heating is Tc (° C.), and the temperature after heating is Th.
(° C.), the remaining water amount W (L (liter)) of the hot and cold water 11 is represented by W = Q / (Th−Tc) (1) from Q = W · (Th−Tc). Since the temperature of the hot and cold 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 need not be provided in the bathtub 1. The amount of heat Q transmitted to the hot and cold water 11 can be detected based on the difference between the temperature detected by the temperature sensors 41 and 42 and the amount of circulating water described below, regardless of the usage state of the hot water mat 5.
【００１２】ところで、浴槽１内の湯水１１は吸込口７
１から循環路７へ吸い込まれ、吐出口７２から浴槽１内
へと戻される。湯水１１の量が多く水面が吸込口７１よ
り十分に上方に位置していれば吸込口７１からは浴槽１
の底面１２と水面１３に挟まれた中間部分の湯水１１が
吸い込まれる。水面１３近傍の温度は比較的高く、底面
１２近傍の温度は比較的低くなり、そのため中間部分の
湯水の温度は浴槽１内の湯水全体の平均温度に近くな
る。具体的には湯水１１が最大設定量の時に温度センサ
４１で検出される温度が湯水全体の平均温度となるよう
に温度センサ４１のオフセット量が予め設定されてい
る。ところが、残水量が少なく水位が低い場合には吸込
口７１と水面１３との距離が短くなり、吸込口７１から
は湯水全体の平均温度より高温の水面１３近傍の湯水を
吸い込むことになる。そのため温度上昇量が大きくな
り、前記（１）式より残水量Ｗは実際の残水量より少な
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。そこで、演算された残水量を推定残水
量Ｗｔｍｐとして、Ｗｔｍｐに応じて演算結果を補正す
るようにした。The hot and cold water 11 in the bathtub 1 is
1 is drawn into the circulation path 7 and returned from the discharge port 72 into the bathtub 1. If the amount of hot water 11 is large and the water surface is located sufficiently above suction port 71, bathtub 1
The hot and cold water 11 in the middle part between the bottom surface 12 and the water surface 13 is sucked. The temperature in the vicinity of the water surface 13 is relatively high, and the temperature in the vicinity of the bottom surface 12 is relatively low, so that the temperature of the hot water in the middle portion is close to the average temperature of the entire hot water in the bathtub 1. Specifically, the offset amount of the temperature sensor 41 is set in advance so that the temperature detected by the temperature sensor 41 when the amount of hot water 11 is the maximum set amount becomes the average temperature of the entire hot water. However, when the remaining water amount is small and the water level is low, the distance between the suction port 71 and the water surface 13 becomes short, and the hot water near the water surface 13 higher than the average temperature of the entire hot water is sucked from the suction port 71. Therefore, the amount of temperature rise becomes large, and the remaining water amount W is calculated to be smaller than the actual remaining water amount according to the equation (1). If hot water is filled based on the calculation result, hot water of an unnecessary amount is added and hot water 11 may overflow from bathtub 1. Therefore, the calculated remaining water amount is used as the estimated remaining water amount Wtmp, and the calculation result is corrected according to Wtmp.
【００１３】残水量によって影響を受ける因子は加熱後
の温度Ｔｈである。そこで、図２に示すマップを用い
て、Ｗｔｍｐに応じた補正係数αを求め、該補正係数α
でＴｈを補正する（α・Ｔｈ）。そして、前記（１）式
にα・Ｔｈを代入し、 Ｗ＝Ｑ／（α・Ｔｈ−Ｔｃ） から最終的な残水量Ｗを求める。尚、αを取り込んだ別
の補正係数を設定しておき、Ｗｔｍｐに直接その補正係
数を乗じてＷを求めるようにしてもよい。A factor affected by the residual water amount is the temperature Th after heating. Therefore, a correction coefficient α corresponding to Wtmp is obtained by using the map shown in FIG.
Is used to correct Th (α · Th). Then, α · Th is substituted into the above equation (1), and the final remaining water amount W is obtained from W = Q / (α · Th−Tc). It is also possible to set another correction coefficient in which α has been taken in, and to obtain W by directly multiplying Wtmp by the correction coefficient.
【００１４】ところで、浴槽１内の湯水１１が循環路７
に吸い込まれる吸込口７１と循環路７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（循環流量が少ない場合）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。そのため前記残水
量が少ない場合と同じように残水量Ｗは実際の残水量よ
り少なく演算される。The hot and cold water 11 in the bathtub 1 is
The suction port 71 that is sucked into the tub and the discharge port 72 that is discharged from the circulation path 7 into the bathtub 1 are provided relatively close to each other, and when the circulation flow rate is low (when the circulation flow rate is small), the discharge port is provided. The rate at which the hot water discharged from the bath 72 into the bathtub 1 is drawn into the suction port 71 before diffusing into the bathtub 1 increases.
Then, the temperature detected by the temperature sensor 41 becomes higher than the actual temperature of the hot and cold water 11 in the bathtub 1. Therefore, the residual water amount W is calculated to be smaller than the actual residual water amount, as in the case where the residual water amount is small.
【００１５】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、循環流量を検知し前記Ｔｈを補
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Δｔ（℃）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. Accordingly, the Th may be corrected by detecting the circulation flow rate. The circulation flow rate may be detected by interposing a flow meter in the circulation path of the hot and cold water 11, but since foreign matters such as dust and hair often enter the hot and cold water 11 in the bathtub 1, the flow rate may be detected. The meter may not function. Therefore,
For example, in a state where the heating operation is not performed as in the case of the single operation of the additional heating of the bath, the circulation flow rate q (L / min) is calculated based on the detected temperature difference Δt (° C.) of the two temperature sensors 41 and 42 as follows: It is determined by equation (2) and stored in a storage means such as an EEPROM (erasable electrically rewritable read-only memory). Here, c is specific heat (Kcal / L · ° C.). It should be noted that the circulation flow q
Is determined when the heat medium is flowing to the hot water mat 5, the amount of heat transmitted to the hot and cold water 11 via the heat exchanger 3 fluctuates,
This is because q cannot be obtained.
【００１６】 ｑ＝Ｑ／（ΔＴｃ） ・・・（２） そして、図３に示すマップを基に循環流量ｑに応じた補
正係数βを求め、該補正係数βを前記α・Ｔｈに乗じて
第２の補正を行い、Ｗ＝Ｑ／（α・β・Ｔｈ−Ｔｃ）に
より残水量を求めるようにしてもよい。尚、この場合に
βを取り込んだ別の補正係数を設定しておき、Ｗに直接
その補正係数を乗じてＷを補正するようにしてもよい。Q = Q / (ΔTc) (2) Then, based on the map shown in FIG. 3, a correction coefficient β corresponding to the circulating flow rate q is obtained, and the correction coefficient β is multiplied by α · Th. A second correction may be performed, and the remaining water amount may be obtained by W = Q / (α · β · Th−Tc). In this case, another correction coefficient that incorporates β may be set, and W may be corrected by directly multiplying W by the correction coefficient.
【００１７】前記実施形態では液−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（風呂単独の場
合）。また、ところで、前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。In the above embodiment, the hot water is heated via the heat medium using the liquid-liquid type heat exchanger 3, but the gas-liquid type heat exchanger is used to heat the hot water. The hot water may be directly heated by a heat source (in the case of a bath alone). In the above embodiment, a burner is used as a heat source. However, another device such as an electric heater may be used as a heat source.
【００１８】[0018]
【発明の効果】以上の説明から明らかなように、本発明
は、浴槽内の残水量を検知する際に残水量が少なくても
正確に残水量を検出することができ、また、浴槽と熱交
換器との間の湯水の循環流量によって影響を受けること
がない。As is apparent from the above description, the present invention can accurately detect the amount of residual water even when the amount of residual water in the bathtub is small. It is not affected by the circulation flow rate of hot and cold water to and from the exchanger.
【図１】本発明の一実施の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】推定残水量Ｗｔｍｐと補正係数αとの関係を示
すマップFIG. 2 is a map showing a relationship between an estimated remaining water amount Wtmp and a correction coefficient α.
【図３】循環流量ｑと補正係数βとの関係を示すマップFIG. 3 is a map showing a relationship between a circulation flow rate q and a correction coefficient β.
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 DESCRIPTION OF SYMBOLS 1 Bathtub 2 Burner 3 Heat exchanger (liquid-liquid type) 4 Circulation pump 5 Hot water mat 6 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 (72)発明者 川島 剛 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 (56)参考文献 特開 平８−271044（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F24H 1/00 602 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroyuki Yamada 2-26, Fukuzumi-cho, Nakagawa-ku, Nagoya, Aichi Prefecture Inside Rinnai Co., Ltd. (72) Inventor Tsuyoshi Kawashima 2-26, Fukuzumi-cho, Nakagawa-ku, Nagoya-shi, Aichi Rinnai (56) References JP-A-8-271044 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) F24H 1/00 602
Claims (4)
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が配設され、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
湯温上昇量と熱交換器を介して前記湯水に伝達される熱
量とから浴槽内の推定残水量を求める残水量演算手段を
有する風呂装置において、前記残水量演算手段は、演算
された推定残水量が少ないほど残水量を多くする補正を
行うことを特徴とする風呂装置。1. A heating circulation system having a heat exchanger for heating hot water in a bathtub through a circulation path and a circulation pump for circulating hot water in the bathtub is provided, and is located upstream of the heat exchanger. In a bath apparatus having residual water amount calculating means for obtaining an estimated residual water amount in a bathtub from a hot water temperature rise amount detected by a temperature sensor provided in a circulation path and a heat amount transmitted to the hot water through a heat exchanger, The bath apparatus, wherein the remaining water amount calculating means performs a correction to increase the remaining water amount as the calculated estimated remaining water amount decreases.
から加熱前の湯温を引いて求めた温度上昇量から推定残
水量を推定し、該推定残水量が少ないほど加熱後の湯温
を下げる補正をし、補正された加熱後の温度を用いて再
度残水量を求めることにより前記推定残水量を補正する
ことを特徴とする請求項１記載の風呂装置。2. The remaining water amount calculating means estimates an estimated remaining water amount from a temperature rise amount obtained by subtracting a hot water temperature before heating from a hot water temperature after heating. 2. The bath apparatus according to claim 1, wherein the estimated remaining water amount is corrected by performing a correction for lowering the temperature and obtaining the remaining water amount again using the corrected temperature after heating. 3.
検出手段を備え、前記残水量演算手段は、該循環流量が
少ないほど前記推定残水量を多くする第２の補正を行う
ことを特徴とする請求項１または請求項２記載の風呂装
置。3. The method according to claim 1, further comprising a flow rate detecting means for detecting a circulating flow rate in the circulation path, wherein the residual water amount calculating means performs a second correction to increase the estimated residual water amount as the circulating flow rate decreases. The bath apparatus according to claim 1 or 2, wherein the bath apparatus is used.
検出手段を備え、前記残水量演算手段は、該循環流量が
少ないほど加熱後の湯温を下げる補正をし、補正された
加熱後の温度を用いて再度残水量を求めることにより前
記推定残水量を補正することを特徴とする請求項３記載
の風呂装置。4. The apparatus according to claim 1, further comprising a flow rate detecting means for detecting a circulating flow rate of the circulation path, wherein the remaining water amount calculating means corrects the hot water temperature after heating as the circulating flow rate decreases, and corrects the corrected hot water temperature. The bath apparatus according to claim 3, wherein the estimated remaining water amount is corrected by obtaining the remaining water amount again using the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11665796A JP3205956B2 (en) | 1996-05-10 | 1996-05-10 | Bath equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11665796A JP3205956B2 (en) | 1996-05-10 | 1996-05-10 | Bath equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09303876A JPH09303876A (en) | 1997-11-28 |
| JP3205956B2 true JP3205956B2 (en) | 2001-09-04 |
Family
ID=14692673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11665796A Expired - Lifetime JP3205956B2 (en) | 1996-05-10 | 1996-05-10 | Bath equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3205956B2 (en) |
-
1996
- 1996-05-10 JP JP11665796A patent/JP3205956B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09303876A (en) | 1997-11-28 |
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