JPH05118660A - Storage type hot water supplying apparatus - Google Patents
Storage type hot water supplying apparatusInfo
- Publication number
- JPH05118660A JPH05118660A JP27534391A JP27534391A JPH05118660A JP H05118660 A JPH05118660 A JP H05118660A JP 27534391 A JP27534391 A JP 27534391A JP 27534391 A JP27534391 A JP 27534391A JP H05118660 A JPH05118660 A JP H05118660A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- temperature
- water
- tank
- storage tank
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 217
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000008400 supply water Substances 0.000 claims abstract description 5
- 238000009835 boiling Methods 0.000 claims description 45
- 238000001514 detection method Methods 0.000 claims description 9
- 238000003287 bathing Methods 0.000 abstract 3
- 238000009434 installation Methods 0.000 abstract 1
- 239000008399 tap water Substances 0.000 description 6
- 235000020679 tap water Nutrition 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 5
- 235000019577 caloric intake Nutrition 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、貯湯タンク内の水を夜
間に電気ヒータや冷凍回路の凝縮器で沸上温度まで加熱
して貯え、これを昼間に給湯する貯湯式給湯装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water storage type hot water supply apparatus for heating water in a hot water storage tank at night by heating it to a boiling temperature with an electric heater or a condenser in a refrigerating circuit and supplying the hot water in the daytime.
【０００２】[0002]
【従来の技術】従来、この種の貯湯式給湯装置として、
例えば実開平２−９３６５４号公報に記載のものが知ら
れている。この貯湯式給湯装置は、夜間電力専用の電気
ヒータと冷凍回路の凝縮器にて内部の水が加熱される貯
湯タンクを１本、沸かされた湯を溜める貯湯タンクを２
本備えるとともに、通電制御手段により、各貯湯タンク
内の湯温に基づいて上記電気ヒータへの通電開始時刻を
調整して、夜間電力の供給終了時に丁度全タンクの湯が
沸き上がるようにして、廉価な夜間電力の有効利用を図
ったものである。ここで、夜間に沸き上げられたタンク
内の湯は、昼間に水道水と混合して用いられるため、湯
の沸上温度は、水道水の温度が高いときは低く、低いと
きは高くなるように自動的に設定される。2. Description of the Related Art Conventionally, as this type of hot water storage type hot water supply device,
For example, the one described in Japanese Utility Model Laid-Open No. 2-93654 is known. This hot-water storage type hot-water supply device has one hot-water storage tank in which internal water is heated by an electric heater dedicated to night power and a condenser in a refrigeration circuit, and two hot-water storage tanks for storing boiled hot water.
Along with the provision of the mains, the energization control means adjusts the energization start time to the electric heaters based on the hot water temperature in each hot water storage tank so that the hot water in all the tanks will just boil at the end of the night-time power supply. It is intended to effectively use nighttime electricity. Here, since the hot water in the tank boiled at night is mixed with tap water during the day, the boiling temperature of the hot water should be low when the temperature of the tap water is high and high when it is low. Is set automatically.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上記従来の
貯湯式給湯装置の沸上温度は、ユーザの湯使用量が一定
であることを前提とし、毎日の湯使用量の多少に拘わら
ず水道水の温度により一意的に設定される。そのため、
湯の使用量が少ない日は、多量の湯が余って放熱し、エ
ネルギが無駄になる一方、湯の使用量が多い日は、湯が
不足して不便をきたすという欠点がある。そこで、本発
明の目的は、沸上温度をユーザの使用湯量の傾向を反映
した値に設定することにより、エネルギの無駄を減じ、
湯不足を生じない貯湯式給湯装置を提供することにあ
る。However, the boiling temperature of the conventional hot water storage type hot water supply device is premised on that the amount of hot water used by the user is constant, and tap water is used regardless of the daily amount of hot water used. Uniquely set by the temperature of. for that reason,
On a day with a small amount of hot water used, a large amount of hot water is radiated and heat is wasted, and on the other hand, on a day with a large amount of hot water used, there is a shortage of hot water, which is inconvenient. Therefore, an object of the present invention is to reduce the waste of energy by setting the boiling temperature to a value that reflects the tendency of the amount of hot water used by the user,
An object is to provide a hot water storage type hot water supply device that does not cause a shortage of hot water.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するた
め、本発明の貯湯式給湯装置は、図１に例示するよう
に、底部から給水される貯湯タンク１内の水を、供給水
の温度Ｔ0に応じて設定される沸上温度Ｔhまで出湯非動
作時間帯に加熱手段７により加熱し、出湯動作時間帯に
貯湯タンク１の頂部から出湯するものにおいて、上記供
給水の温度Ｔ0を検出する水温センサ１０と、上記貯湯
タンク１に縦方向に所定間隔をおいて設けられ、タンク
内の湯温Ｔiを検出する複数の湯温センサ１１a〜１１f
と、一日の出湯動作終了時に上記各湯温センサ１１a〜
１１fの検出信号が表わす湯温Ｔiと上記沸上温度Ｔhと
上記所定間隔に対応するタンクの容積Ｖiに基づいて、
その日の給湯に消費された消費熱量Ｑjを算出する熱量
算出手段９と、この熱量算出手段９で算出された毎日の
消費熱量値Ｑjを数日に亘って記憶する記憶手段１２
と、この記憶手段１２に記憶された消費熱量値Ｑjのう
ちの最大値Ｍax(Ｑj)を貯湯タンクの全容積Ｖで除算
し、この除算結果ΔＴに上記水温センサ１０の検出信号
が表わす水温Ｔ0に応じて定まる定数αを加えて、目標
沸上温度を算出する温度算出手段９と、この温度算出手
段９で求められた目標沸上温度(ΔＴ＋α)を次の数日間
の上記沸上温度Ｔhとして設定する温度設定手段９を備
えたことを特徴とする。In order to achieve the above object, the hot water storage type hot water supply apparatus of the present invention, as illustrated in FIG. 1, changes the water in the hot water storage tank 1 supplied from the bottom to the temperature of the supplied water. In the case where the heating means 7 heats up to the boiling temperature Th set according to T 0 during the hot water discharge non-operating time period and the hot water is discharged from the top of the hot water storage tank 1 during the hot water discharge operating time period, the temperature T 0 of the supply water is changed. A water temperature sensor 10 for detecting and a plurality of hot water temperature sensors 11a to 11f which are provided in the hot water storage tank 1 at predetermined intervals in the vertical direction and detect the hot water temperature Ti in the tank.
And at the end of the hot spring operation, each hot water temperature sensor 11a-
Based on the hot water temperature Ti indicated by the detection signal 11f, the boiling temperature Th, and the tank volume Vi corresponding to the predetermined interval,
A calorie calculation means 9 for calculating the calorie consumption Qj consumed for hot water supply on the day, and a storage means 12 for storing the daily calorie consumption value Qj calculated by the calorie calculation means 9 for several days.
Then, the maximum value Max (Qj) of the consumed heat quantity values Qj stored in the storage means 12 is divided by the total volume V of the hot water storage tank, and the water temperature T represented by the detection signal of the water temperature sensor 10 is shown in the division result ΔT. A constant α determined according to 0 is added to the temperature calculation means 9 for calculating the target boiling temperature, and the target boiling temperature (ΔT + α) obtained by the temperature calculation means 9 is set to the boiling temperature for the next several days. It is characterized in that a temperature setting means 9 for setting as Th is provided.
【０００５】[0005]
【作用】貯湯タンク１内の水は、夜間などの出湯非動作
時間帯に加熱手段７で加熱されて、全体が所定の沸上温
度Ｔhに達する。貯湯タンク１内の沸上った湯は、昼間
などの出湯動作時間帯にユーザの要求量だけ頂部から出
湯され、出湯に見合う量の水が底部からタンク１内に補
給される。出湯動作時間帯の間中加熱手段７による加熱
はないから、ユーザの使用湯量が多いほどタンク１内の
湯水境界線は上昇し、貯湯タンク１に縦方向に所定間隔
をおいて設けられた複数の湯温センサ１１a〜１１fが検
出する湯温Ｔiも全体的に低下する。一日の出湯動作終
了時に、熱量算出手段９は、上記各湯温センサ１１a〜
１１fが検出する湯温Ｔiと出湯開始時の上記沸上温度Ｔ
hとの差(Ｔh−Ｔi)に、その湯温センサが占めるタンク
の容積Ｖiを乗じて累加し、その日の給湯にタンク１か
ら消費された消費熱量Ｑj〔＝Σ(Ｔh−Ｔi)Ｖi〕を算出
する。こうして算出された毎日の消費熱量値Ｑjは、数
日(例えば１週間)に亘って記憶手段１２に記憶される。The water in the hot water storage tank 1 is heated by the heating means 7 during the time when the hot water is not operating, such as at night, so that the entire water reaches the predetermined boiling temperature Th. The boiling water in the hot water storage tank 1 is tapped from the top during the hot water operation time zone such as daytime by the amount requested by the user, and an amount of water commensurate with the tapping is supplied from the bottom into the tank 1. Since there is no heating by the heating means 7 during the hot water operation time, the hot and cold water boundary line in the tank 1 rises as the amount of hot water used by the user increases, and a plurality of hot water storage tanks 1 are provided at predetermined intervals in the vertical direction. The hot water temperature Ti detected by the hot water temperature sensors 11a to 11f also decreases as a whole. At the end of the hot spring operation, the calorific value calculating means 9 causes the hot water temperature sensors 11a to 11a ...
Hot water temperature Ti detected by 11f and the boiling temperature T at the start of hot water discharge
The difference from h (Th-Ti) is multiplied by the volume Vi of the tank occupied by the hot-water temperature sensor and added up, and the heat consumption Qj [= Σ (Th-Ti) Vi] consumed from the tank 1 for hot water supply on that day. To calculate. The daily calorie consumption value Qj thus calculated is stored in the storage means 12 for several days (for example, one week).
【０００６】数日が経過すると、温度算出手段９は、上
記記憶手段１２に記憶された消費熱量値Ｑjのうちの最
大値Ｍax(Ｑj)を貯湯タンク１の全容積Ｖで除算して、
最大の平均湯温低下度ΔＴ〔＝Ｍax(Ｑj)／Ｖ〕を求
め、この低下度ΔＴに水温センサ１０が検出する水温Ｔ
0に応じて定まる定数αを加算して、目標沸上温度を算
出する。そして、温度設定手段９は、上記目標沸上温度
(ΔＴ＋α)を次の数日(例えば１週間)間の沸上温度Ｔh
として設定し、貯湯タンク１内の水は、夜間などに総て
この沸上温度Ｔhに沸き上げられることになる。かく
て、例えば次の１週間の沸上温度Ｔhは、前の１週間の
最大使用湯量が多ければ高く、少なければ低く設定さ
れ、次の１週間の出湯開始時の貯湯タンク１内は、ユー
ザの使用湯量の傾向を反映した沸上温度Ｔhの湯で満た
されるので、湯が余って放熱によるエネルギの無駄が生
じたり、湯不足で不便を来したりすることが少なくな
る。After several days, the temperature calculating means 9 divides the maximum value Max (Qj) of the heat consumption amount value Qj stored in the storage means 12 by the total volume V of the hot water storage tank 1,
The maximum average hot water temperature decrease ΔT [= Max (Qj) / V] is calculated, and the water temperature T detected by the water temperature sensor 10 is determined by this decrease ΔT.
A target boiling temperature is calculated by adding a constant α determined according to 0 . Then, the temperature setting means 9 determines the target boiling temperature.
(ΔT + α) is the boiling temperature Th for the next few days (for example, one week)
Therefore, all the water in the hot water storage tank 1 is boiled to the boiling temperature Th at night. Thus, for example, the boiling temperature Th for the next week is set to be high if the maximum amount of hot water used for the previous week is large, and is set to be low if the maximum amount of hot water used is small for the previous week. Since it is filled with hot water having a boiling temperature Th that reflects the tendency of the amount of hot water used, it is less likely that excess hot water is wasted and energy is wasted due to heat dissipation, or inconvenience due to lack of hot water occurs.
【０００７】[0007]
【実施例】以下、本発明を図示の実施例により詳細に説
明する。図１は、貯湯式給湯装置の一例を示す概略図で
ある。この給湯装置は、貯湯タンク１と、この貯湯タン
ク１の底部に減圧弁３を経て水道水を供給する給水管２
と、給水管２に介設された三方弁４から分岐してポンプ
６を経て貯湯タンク１の底部に至る循環管路５と、三方
弁４の切換とポンプ６の駆動で循環管路５を循環する貯
湯タンク１内の水を加熱する凝縮器７と、貯湯タンク１
の頂部から所定の沸上温度に加熱された湯を出湯する給
湯管８と、制御器９を備える。上記制御器９は、給水管
２に設けられた水温センサ１０の検出信号を受けて(図
２のＳ１参照)、この検出信号が表わす給水温度Ｔ0に応
じて沸上温度Ｔhを次のように決定する(同Ｓ２参照)。
即ち、(Ｔ0≦１３℃,Ｔh＝８５℃)、(Ｔ0＝１３〜１８
℃,Ｔh＝８０℃)、(Ｔ0＝１８〜２３℃,Ｔh＝７５℃)、
(Ｔ0≧２３℃,Ｔh＝７０℃)である。また、制御器９
は、凝縮器７に連なる図示しないヒートポンプ式冷凍回
路の圧縮機の能力と運転時間を制御して、貯湯タンク１
一杯に供給された水を夜間電力を最大限に利用して上記
沸上温度Ｔhまで加熱するとともに、後述する熱量算出
手段,記憶手段,温度算出手段および温度設定手段を兼ね
る。なお、凝縮器７による加熱は、専ら廉価な夜間電力
のみを用いて行なわれ、昼間などの出湯動作中には凝縮
器７による追加加熱は行なわない。The present invention will be described in detail below with reference to the embodiments shown in the drawings. FIG. 1 is a schematic view showing an example of a hot water storage type hot water supply device. This hot water supply device comprises a hot water storage tank 1 and a water supply pipe 2 for supplying tap water to the bottom of the hot water storage tank 1 via a pressure reducing valve 3.
And a circulation line 5 that branches from a three-way valve 4 provided in the water supply pipe 2 and reaches the bottom of the hot water storage tank 1 via a pump 6, and a circulation line 5 by switching the three-way valve 4 and driving the pump 6. A condenser 7 for heating the water in the circulating hot water storage tank 1 and the hot water storage tank 1
A hot water supply pipe 8 for tapping hot water heated to a predetermined boiling temperature from the top of the tank and a controller 9 are provided. The controller 9 receives the detection signal of the water temperature sensor 10 provided in the water supply pipe 2 (see S1 in FIG. 2), and sets the boiling temperature Th as follows according to the supply water temperature T 0 represented by the detection signal. (See S2).
That is, (T 0 ≦ 13 ° C., Th = 85 ° C.), (T 0 = 13-18
C, Th = 80 ° C.), (T 0 = 18-23 ° C., Th = 75 ° C.),
(T 0 ≧ 23 ° C., Th = 70 ° C.). Also, the controller 9
Controls the capacity and operating time of the compressor of the heat pump type refrigeration circuit (not shown) connected to the condenser 7, and controls the hot water storage tank 1
The fully supplied water is heated to the boiling temperature Th by making maximum use of nighttime electric power, and also serves as a calorie calculating means, a storing means, a temperature calculating means and a temperature setting means which will be described later. It should be noted that the heating by the condenser 7 is performed exclusively by using inexpensive nighttime power, and the additional heating by the condenser 7 is not performed during the hot water operation such as daytime.
【０００８】上記貯湯タンク１の側壁には、頂部から底
部まで縦方向に一定間隔をおいてタンク内の湯温Ｔi(i
＝１〜６)を検出する湯温センサ１１a〜１１fを設け
る。貯湯タンク１内は、各湯温センサの中間点において
湯の対流をある程度妨げる水平の隔壁で仕切られ、この
隔壁で仕切られる各部分の容積、即ち各湯温センサが占
めるタンクの容積は、Ｖ1〜Ｖ6であり、これらの合計が
タンクの全容積Ｖ(Ｖ＝Ｖ1＋Ｖ2＋…＋Ｖ6)になる。上記
制御器９は、熱量算出手段として、毎日の出湯動作終了
時(例えば、工場の終業時刻)に各湯温センサ１１a〜１
１fの検出信号が表わす湯温Ｔiと、出湯開始時(例え
ば、工場の始業時刻)の上記沸上温度Ｔhと、各湯温セン
サが占める上記容積Ｖi(i＝１〜６)に基づいて、毎日の
給湯に消費された消費熱量Ｑj(j＝１〜７)を１週間に亘
って下式で算出するとともに、算出した毎日の消費熱量
Ｑjを内蔵する記憶手段としてのメモリ１２に記憶する
(図２のＳ３参照)。 Ｑj＝(Ｔh−Ｔ1)Ｖ1＋(Ｔh−Ｔ2)Ｖ2＋…＋(Ｔh−Ｔ6)
Ｖ6 On the side wall of the hot water storage tank 1, the hot water temperature in the tank Ti (i
= 1 to 6), hot water temperature sensors 11a to 11f are provided. The inside of the hot water storage tank 1 is partitioned by a horizontal partition wall that obstructs the convection of the hot water at an intermediate point of each hot water temperature sensor, and the volume of each part partitioned by this partition wall, that is, the volume of the tank occupied by each hot water temperature sensor is V 1 to V 6 and the sum of these is the total volume V of the tank (V = V 1 + V 2 + ... + V 6 ). The controller 9 serves as a calorific value calculation means at each hot water temperature sensor 11a to 1a at the end of the hot water operation every sunrise (for example, the closing time of the factory).
Based on the hot water temperature Ti indicated by the detection signal of 1f, the boiling temperature Th at the start of tapping (for example, the start time of the factory), and the volume Vi (i = 1 to 6) occupied by each hot water temperature sensor, The heat consumption amount Qj (j = 1 to 7) consumed for daily hot water supply is calculated by the following formula for one week, and the calculated daily heat consumption amount Qj is stored in the memory 12 as a storage means.
(See S3 in FIG. 2). Qj = (Th-T 1) V 1 + (Th-T 2) V 2 + ... + (Th-T 6)
V 6
【０００９】また、制御器９は、温度算出手段として、
１週間の間にメモリ１２に記憶した消費熱量値Ｑjから
最大値Ｍax(Ｑj)を選び、この最大値Ｍax(Ｑj)と、貯湯
タンクの全容積Ｖと、水温センサ１０の検出信号が表わ
す水温Ｔ0(図２のＳ４参照)に応じて定まる定数αに基
づいて、目標沸上温度Ｔhを下式で算出するとともに、
温度設定手段として、この目標沸上温度Ｔhを次の１週
間の上記沸上温度Ｔhとして設定するようになっている
(図２のＳ５参照)。 ΔＴ＝Ｍax(Ｑj)／Ｖ、Ｔh＝ΔＴ＋α なお、上記定数αは、例えば夏季が５０℃,冬季が５５
℃である。The controller 9 serves as a temperature calculating means.
The maximum value Max (Qj) is selected from the heat consumption values Qj stored in the memory 12 during one week, and the maximum value Max (Qj), the total volume V of the hot water storage tank, and the water temperature represented by the detection signal of the water temperature sensor 10 are selected. Based on the constant α determined according to T 0 (see S4 in FIG. 2), the target boiling temperature Th is calculated by the following formula, and
As a temperature setting means, this target boiling temperature Th is set as the above-mentioned boiling temperature Th for the next week.
(See S5 in FIG. 2). ΔT = Max (Qj) / V, Th = ΔT + α The constant α is, for example, 50 ° C. in summer and 55 in winter.
℃.
【００１０】上記構成の貯湯式給湯装置の動作を、図２
を参照しつつ次に述べる。制御器９は、１週間の始め
に、三方弁４が給水管２側に連通するように切り換えら
れ、給水管２から貯湯タンク１に水道水が供給されると
き、水温センサ１０がステップＳ１で検出する給水温度
Ｔ0に応じて、ステップＳ２で沸上温度Ｔhを決定する。
貯湯タンク１が給水で満杯になり、三方弁４が循環管路
５側に切り換えられ、廉価な夜間電力が供給され始める
と、制御器９はこれを最大限に利用して、凝縮器７に連
なる図示しない圧縮機の能力と運転時間を制御して、貯
湯タンク１内の水を総て上記沸上温度Ｔhまで加熱す
る。貯湯タンク１内の沸上った湯は、工場の始業時刻後
などの出湯動作時間帯にユーザの要求量だけ頂部から給
湯管８を経て出湯され、出湯に見合う量の水道水が再び
切り換わった三方弁４を経て貯湯タンク１に底部から補
給される。出湯動作時間帯の間中、凝縮器７による追加
加熱はないから、ユーザの使用湯量が多いほどタンク内
の湯水境界線は上昇し、貯湯タンク１に縦方向に一定間
隔をおいて設けられた湯温センサ１１a〜１１fが検出す
る湯温も全体的に低下する。The operation of the hot water storage type hot water supply apparatus having the above configuration will be described with reference to FIG.
Will be described next with reference to. At the beginning of the week, the controller 9 is switched so that the three-way valve 4 communicates with the water supply pipe 2 side, and when the tap water is supplied from the water supply pipe 2 to the hot water storage tank 1, the water temperature sensor 10 operates in step S1. The boiling temperature Th is determined in step S2 according to the detected feed water temperature T 0 .
When the hot water storage tank 1 is filled with water, the three-way valve 4 is switched to the circulation pipe line 5 side, and inexpensive night-time power starts to be supplied, the controller 9 makes full use of this to supply the condenser 7 to the condenser 7. All the water in the hot water storage tank 1 is heated to the boiling temperature Th by controlling the capacity and operating time of a series of compressors (not shown). The boiling water in the hot water storage tank 1 is tapped from the top through the hot water supply pipe 8 during the tapping operation time period such as after the factory start time, and the tap water of an amount commensurate with the tapping is switched again. It is replenished from the bottom to the hot water storage tank 1 via the three-way valve 4. Since there is no additional heating by the condenser 7 during the hot water operation time zone, the hot water boundary in the tank rises as the amount of hot water used by the user increases, and the hot water storage tank 1 is provided at regular intervals in the vertical direction. The hot water temperature detected by the hot water temperature sensors 11a to 11f is also lowered as a whole.
【００１１】工場の終業時刻などの一日の出湯動作終了
時に、制御器９は、ステップＳ３で各湯温センサ１１a
〜１１fが検出する湯温Ｔiと出湯開始時の沸上温度Ｔh
との差に、その湯温センサが占めるタンクの容積Ｖiを
乗じて累加し、その日の給湯に貯湯タンク１から消費さ
れた消費熱量Ｑj〔Ｑj＝(Ｔh−Ｔ1)Ｖ1＋(Ｔh−Ｔ2)Ｖ2
＋…＋(Ｔh−Ｔ6)Ｖ6〕を算出する。そして、算出した
毎日の消費熱量値Ｑｊを、１週間に亘ってメモリ１２に
記憶する。１週間が経過すると、制御器９は、ステップ
Ｓ５で、メモリ１２に記憶した消費熱量値Ｑj(j＝１〜
７)のうちの最大値Ｍax(Ｑj)を貯湯タンク１の全容積Ｖ
で除算して、最大の平均温度低下度ΔＴ〔ΔＴ＝Ｍax
(Ｑj)／Ｖ〕を求め、このΔＴに水温センサ１０による
水温Ｔ0(ステップＳ４参照)に応じて定まる定数αを加
算して、目標沸上温度(ΔＴ＋α)を算出する。そして、
この目標沸上温度を次の１週間の沸上温度Ｔhとして設
定する(Ｔh←ΔＴ＋α)。従って、次の１週間、貯湯タ
ンク１内の水は、夜間に総てこの沸上温度Ｔhに沸き上
げられることになる。At the end of one-day hot water operation such as when the factory finishes, the controller 9 determines each hot water temperature sensor 11a in step S3.
~ 11f detected hot water temperature Ti and boiling temperature at start of hot water Th
To the difference between, and accumulate by multiplying the volume Vi of the tank occupied by the hot water temperature sensor, heat consumption Qj consumed from the hot water storage tank 1 to the hot water supply of the day [Qj = (Th-T 1) V 1 + (Th- T 2 ) V 2
+ ... + to calculate the (Th-T 6) V 6]. Then, the calculated daily heat consumption amount Qj is stored in the memory 12 for one week. When one week has passed, the controller 9 determines in step S5 the heat consumption value Qj (j = 1 to 1) stored in the memory 12.
The maximum value Max (Qj) of 7) is the total volume V of the hot water storage tank 1.
The maximum average temperature drop ΔT [ΔT = Max
(Qj) / V] is calculated, and a constant boiling point (ΔT + α) is calculated by adding a constant α determined according to the water temperature T 0 by the water temperature sensor 10 (see step S4) to this ΔT. And
This target boiling temperature is set as the boiling temperature Th for the next week (Th ← ΔT + α). Therefore, for the next week, all the water in the hot water storage tank 1 will be boiled to the boiling temperature Th at night.
【００１２】こうして、次の１週間の沸上温度Ｔhは、
前の１週間の最大使用湯量が多ければ高く、少なければ
低く設定され、次の１週間の出湯開始時の貯湯タンク１
内は、ユーザの使用湯量の傾向を反映した沸上温度Ｔh
の湯で満たされるので、湯が余って放熱によるエネルギ
の無駄が生じたり、湯不足で不便を来したりすることが
少なくなる。上記実施例では、給水の加熱を制御する制
御器９に熱量算出手段,記憶手段,温度算出手段および温
度設定手段の役割を兼ねさせたので、装置が比較的簡素
かつ安価に構成できるという利点がある。なお、本発明
の加熱手段は、実施例の凝縮器に限らず、電気ヒータに
してもよい。また、記憶手段への消費熱量値の記憶は、
実施例の１週間単位に限らず、一定日単位で行なうこと
ができる。Thus, the boiling temperature Th for the next week is
If the maximum amount of hot water used in the previous week is large, it will be set high, and if it is small, it will be set low.
The inside is the boiling temperature Th that reflects the tendency of the amount of hot water used by the user.
Since it is filled with hot water, there is less waste of energy due to excess heat and inconvenience due to lack of hot water. In the above embodiment, the controller 9 for controlling the heating of the feed water also serves as the calorific value calculation means, the storage means, the temperature calculation means and the temperature setting means, so that there is an advantage that the apparatus can be configured relatively simply and inexpensively. is there. The heating means of the present invention is not limited to the condenser of the embodiment and may be an electric heater. In addition, the storage of the heat consumption amount value in the storage means,
The process can be performed not only on a weekly basis but also on a fixed day basis.
【００１３】[0013]
【発明の効果】以上の説明で明らかなように、本発明の
貯湯式給湯装置は、貯湯タンク一杯に底部から供給した
水を、その水温に応じて設定される沸上温度まで出湯非
動作時間帯に加熱手段で加熱し、出湯動作時間帯に貯湯
タンクの頂部から出湯するものにおいて、貯湯タンクに
縦方向に所定間隔をおいて複数の湯温センサを設け、出
湯終了時に各湯温センサの検出信号を受ける熱量算出手
段により、この湯温と上記沸上温度と上記所定間隔に対
応するタンクの容積に基づいて一日の給湯に消費された
消費熱量を算出し、算出された消費熱量値を数日に亘っ
て記憶手段に記憶させるとともに、記憶された消費熱量
値のうちの最大値を温度算出手段により、貯湯タンクの
全容積で除算し、除算結果に水温センサによる給水の水
温に応じて定まる定数を加えて目標沸上温度を算出し、
この目標沸上温度を温度設定手段により次の数日間の上
記沸上温度として設定するようにしているので、ユーザ
の使用湯量の傾向を反映した沸上温度の湯が準備でき、
湯が余って放熱によるエネルギの無駄が生じたり、湯不
足で不便を来したりすることが少なくなる。As is apparent from the above description, in the hot water storage type hot water supply apparatus of the present invention, the hot water supplied from the bottom to the full hot water storage tank reaches the boiling temperature set according to the water temperature, and the hot water is not in operation. In the case where the band is heated by the heating means and tapped from the top of the hot water storage tank during the hot water operation time period, a plurality of hot water temperature sensors are provided at predetermined intervals in the vertical direction in the hot water storage tank. The calorific value calculation means that receives the detection signal calculates the calorific value consumed for hot water supply for one day based on the hot water temperature, the boiling temperature, and the volume of the tank corresponding to the predetermined interval, and the calculated calorific value Is stored in the storage means for several days, and the maximum value of the stored heat consumption values is divided by the total volume of the hot water storage tank by the temperature calculation means, and the result of the division depends on the water temperature of the water supplied by the water temperature sensor. Settled It calculates a target heating-up temperature was added several,
Since this target boiling temperature is set as the above-mentioned boiling temperature for the next several days by the temperature setting means, hot water having a boiling temperature reflecting the tendency of the amount of hot water used by the user can be prepared,
Excessive amount of hot water causes waste of energy due to heat dissipation, and inconvenience due to insufficient hot water is reduced.
【図１】 本発明の貯湯式給湯装置の一実施例を示す概
略図である。FIG. 1 is a schematic view showing an embodiment of a hot water storage type hot water supply apparatus of the present invention.
【図２】 上記貯湯式給湯装置の動作の流れを示すフロ
ーチャートである。FIG. 2 is a flowchart showing a flow of operations of the hot water storage type hot water supply device.
１…貯湯タンク、２…給水管、４…三方弁、５…循環管
路、６…ポンプ、７…凝縮器、８…給湯管、９…制御
器、１０…水温センサ、１１a〜１１f…湯温センサ、１
２…メモリ。DESCRIPTION OF SYMBOLS 1 ... Hot water storage tank, 2 ... Water supply pipe, 4 ... Three-way valve, 5 ... Circulation pipeline, 6 ... Pump, 7 ... Condenser, 8 ... Hot water supply pipe, 9 ... Controller, 10 ... Water temperature sensor, 11a-11f ... Hot water Temperature sensor, 1
2 ... memory.
Claims (1)
水を、供給水の温度(Ｔ0)に応じて設定される沸上温度
(Ｔh)まで出湯非動作時間帯に加熱手段(７)により加熱
し、出湯動作時間帯に貯湯タンク(１)の頂部から出湯す
る貯湯式給湯装置において、 上記供給水の温度(Ｔ0)を検出する水温センサ(１０)
と、 上記貯湯タンク(１)に縦方向に所定間隔をおいて設けら
れ、タンク内の湯温(Ｔi)を検出する複数の湯温センサ
(１１a〜１１f)と、 一日の出湯動作終了時に上記各湯温センサ(１１a〜１１
f)の検出信号が表わす湯温(Ｔi)と上記沸上温度(Ｔh)と
上記所定間隔に対応するタンクの容積(Ｖi)に基づい
て、その日の給湯に消費された消費熱量(Ｑj)を算出す
る熱量算出手段(９)と、 この熱量算出手段(９)で算出された毎日の消費熱量値
(Ｑj)を数日に亘って記憶する記憶手段(１２)と、 この記憶手段(１２)に記憶された消費熱量値(Ｑj)のう
ちの最大値(Ｍax(Ｑj))を貯湯タンク(１)の全容積(Ｖ)
で除算し、この除算結果(ΔＴ)に上記水温センサ(１０)
の検出信号が表わす水温(Ｔ0)に応じて定まる定数(α)
を加えて、目標沸上温度を算出する温度算出手段(９)
と、 この温度算出手段(９)で求められた目標沸上温度(ΔＴ
＋α)を次の数日間の上記沸上温度(Ｔh)として設定する
温度設定手段(９)を備えたことを特徴とする貯湯式給湯
装置。1. The boiling temperature of water in the hot water storage tank (1) supplied from the bottom is set according to the temperature (T 0 ) of the supplied water.
In the hot-water storage type hot water supply device that heats up to (Th) by the heating means (7) in the hot water non-operating time period and taps hot water from the top of the hot water storage tank (1) during the hot water operating time period, the temperature (T 0 ) of the supply water is changed. Water temperature sensor to detect (10)
And a plurality of hot water temperature sensors provided in the hot water storage tank (1) at predetermined intervals in the vertical direction to detect hot water temperature (Ti) in the tank.
(11a to 11f) and the hot water temperature sensors (11a to 11f) at the end of the hot water operation
Based on the hot water temperature (Ti) represented by the detection signal of f), the boiling temperature (Th), and the tank volume (Vi) corresponding to the predetermined interval, the heat consumption amount (Qj) consumed for hot water supply on that day is calculated. The calorie calculation means (9) to be calculated, and the daily heat consumption value calculated by the calorie calculation means (9)
(Qj) is stored for several days, and the maximum value (Max (Qj)) of the heat consumption values (Qj) stored in this storage means (12) is stored in the hot water storage tank (1). ) Total volume (V)
Divide by and add the water temperature sensor (10) to the division result (ΔT).
Constant (α) determined according to the water temperature (T 0 ) represented by the detection signal of
And a temperature calculating means (9) for calculating the target boiling temperature.
And the target boiling temperature (ΔT obtained by this temperature calculation means (9)
A hot water storage type hot water supply device comprising temperature setting means (9) for setting + α) as the boiling temperature (Th) for the next several days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27534391A JPH05118660A (en) | 1991-10-23 | 1991-10-23 | Storage type hot water supplying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27534391A JPH05118660A (en) | 1991-10-23 | 1991-10-23 | Storage type hot water supplying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05118660A true JPH05118660A (en) | 1993-05-14 |
Family
ID=17554153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27534391A Pending JPH05118660A (en) | 1991-10-23 | 1991-10-23 | Storage type hot water supplying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05118660A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2387671A (en) * | 2002-04-19 | 2003-10-22 | Gasforce Ltd | A water-heating system controller |
| JP2012215329A (en) * | 2011-03-31 | 2012-11-08 | Osaka Gas Co Ltd | Heat supply system |
| CN112833558A (en) * | 2020-12-01 | 2021-05-25 | 青岛经济技术开发区海尔热水器有限公司 | Water storage type water heater and control method thereof |
-
1991
- 1991-10-23 JP JP27534391A patent/JPH05118660A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2387671A (en) * | 2002-04-19 | 2003-10-22 | Gasforce Ltd | A water-heating system controller |
| JP2012215329A (en) * | 2011-03-31 | 2012-11-08 | Osaka Gas Co Ltd | Heat supply system |
| CN112833558A (en) * | 2020-12-01 | 2021-05-25 | 青岛经济技术开发区海尔热水器有限公司 | Water storage type water heater and control method thereof |
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