JPH03291462A - Solar heat-aided water-heating apparatus using midnight electric power - Google Patents
Solar heat-aided water-heating apparatus using midnight electric powerInfo
- Publication number
- JPH03291462A JPH03291462A JP2091891A JP9189190A JPH03291462A JP H03291462 A JPH03291462 A JP H03291462A JP 2091891 A JP2091891 A JP 2091891A JP 9189190 A JP9189190 A JP 9189190A JP H03291462 A JPH03291462 A JP H03291462A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- hot water
- solar
- solar heat
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 136
- 230000005855 radiation Effects 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000005338 heat storage Methods 0.000 claims description 43
- 230000005611 electricity Effects 0.000 claims description 14
- 239000008400 supply water Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 10
- 238000009835 boiling Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、太陽熱と深夜電気を利用して給湯に用いる温
水を作る太陽熱利用深夜電気温水器に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a solar heat-utilizing late-night electric water heater that uses solar heat and late-night electricity to produce hot water for hot water supply.
従来、深夜電気温水器に太陽熱エネルギーを利用する方
法として、昼間に太陽熱温水器により給水をある程度ま
で昇温させて貯湯槽に貯え、夜間に貯湯槽から太陽熱で
温められた温水を深夜電気温水器に導き、安価な深夜電
気を利用して給湯に必要な温度にまで昇温させて深夜電
気温水器の蓄熱槽に蓄えておき、翌日に蓄熱槽の温水を
給湯するというものがある。この場合、集熱された太陽
熱エネルギーは翌日まで使用されないことになり。Conventionally, as a method of using solar thermal energy for late-night electric water heaters, water is heated to a certain level by a solar water heater during the day and stored in a hot water tank, and hot water heated by solar heat from the hot water tank is used at night to be heated by late-night electric water heaters. One method is to use cheap late-night electricity to raise the temperature to the temperature required for hot water supply, store it in the heat storage tank of a late-night electric water heater, and then use the hot water in the heat storage tank to heat the water the next day. In this case, the collected solar energy will not be used until the next day.
特に夕方以後に給湯の需要が多いことを考慮すると、集
熱してから給湯まで長時間放置され、この間の放熱しこ
より、集熱されたエネルギーは大量の熱量を損失するこ
とになる。Considering that there is a high demand for hot water supply especially after evening, the collected energy loses a large amount of heat due to the long period of time between heat collection and hot water supply, and heat dissipation during this time.
上記のように従来技術においては、集熱された太陽熱エ
ネルギーは集熱から給湯まで長時間放置されるので、そ
の間の放熱によって大量に損失するという問題があった
。As described above, in the conventional technology, the collected solar thermal energy is left for a long time from collection to hot water supply, so there is a problem in that a large amount of heat is lost due to heat radiation during that time.
本発明は上記問題に鑑みてなされたものであって、深夜
電気温水器と太陽熱温水器をひとつの蓄熱槽で結合し、
翌日の日射量の予測値を基に深夜電気により蓄熱槽の給
水に熱量を与え、さらに翌日に太陽熱をあたえて、給湯
に必要な全熱量を得ることにより、集熱した太陽熱エネ
ルギーをより有効利用できる太陽熱利用深夜電気温水器
を提供することを目的としている。The present invention was made in view of the above problem, and combines a late-night electric water heater and a solar water heater in one heat storage tank.
The collected solar thermal energy is used more effectively by applying late-night electricity to the water supply in the heat storage tank based on the predicted amount of solar radiation for the next day, and then applying solar heat the next day to obtain the total amount of heat required for hot water supply. The purpose is to provide a late-night electric water heater that uses solar heat.
上記目的を達成するために、本発明の太陽熱利用深夜電
気温水器は、翌日の日射量を予測する日射量予測センサ
と、該日射量予測センサの予測値から求められる熱量を
所定熱量から差し引いた差分の熱量を深夜電気を用いて
給水に与えるヒータと、該ヒータにより沸き上げられた
温水を上部に蓄える蓄熱槽と、翌日の日射量を集める太
陽熱コレクタと、該太陽熱コレクタに循環ポンプを介し
て接続しかつ前記蓄熱槽底部に設置されて給水と熱交換
して温水をつくる熱交換器と、前記蓄熱槽に蓄えた温水
をかきまぜる混合ポンプとを備えたことを特徴としてい
る。そして、前記混合ポンプは前記蓄熱槽の上部と底部
とを接続する配管経路内に設け、温水を循環させて混合
するようなものがよい。In order to achieve the above object, the solar heat-utilizing late-night electric water heater of the present invention includes a solar radiation prediction sensor that predicts the next day's solar radiation, and a heat quantity calculated from the predicted value of the solar radiation prediction sensor, which is subtracted from a predetermined heat quantity. A heater that uses late-night electricity to supply the water with the difference in heat, a heat storage tank that stores the hot water heated by the heater in the upper part, a solar heat collector that collects the next day's solar radiation, and a circulation pump that connects the solar heat collector to the water supply. The heat exchanger is connected to the heat storage tank and is installed at the bottom of the heat storage tank to exchange heat with the supplied water to produce hot water, and a mixing pump that stirs the hot water stored in the heat storage tank. Preferably, the mixing pump is installed in a piping route connecting the top and bottom of the heat storage tank to circulate and mix hot water.
本発明の太陽熱利用深夜電気温水器において、日射量予
測センサは翌日の日射量を予測して太陽熱により得られ
る熱量を設定し、ヒータは設定された太陽熱熱量を所定
熱量すなわち装置の定格熱量から差し引いた差分の熱量
を深夜電気を用いて給水に与えて沸き上げ、蓄熱槽は沸
き上げられて上方に昇ってきた温水を蓄え、一方太陽熱
コレクタは翌日に日射量、換言すれば太陽熱を集熱して
内蔵する流体を加熱し、加熱された流体を循環ポンプが
太陽熱コレクタと熱交換器の間を循環させ、この時熱交
換器は蓄熱槽底部に滞留する給水を加熱して温水を作り
、混合ポンプは給湯前に駆動されて蓄熱槽中の温水をか
き混ぜて、全体を均一な温度にする。In the late-night electric water heater using solar heat of the present invention, the solar radiation prediction sensor predicts the next day's solar radiation and sets the amount of heat obtained from solar heat, and the heater subtracts the set amount of solar heat from the predetermined amount of heat, that is, the rated amount of heat of the device. The difference in heat is applied to the water supply using late-night electricity to boil it, and the heat storage tank stores the heated water that rises upwards, while the solar collector collects the amount of solar radiation, or in other words, the solar heat, the next day. The built-in fluid is heated, and the circulation pump circulates the heated fluid between the solar collector and the heat exchanger. At this time, the heat exchanger heats the feed water staying at the bottom of the heat storage tank to create hot water, and the mixing pump is activated before hot water is supplied to stir the hot water in the heat storage tank to maintain a uniform temperature throughout.
以下、本発明の一実施例を図面により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は実施例の太陽熱利用深夜電気温水器の構成図で
ある。この太陽熱利用深夜電気温水器は大別して翌日の
日射量を予測する日射量予測センサと、日射量予測セン
サの予測値を基に消費電力が決定された深夜電気で給水
を加熱する電気温水器と、その電気温水器に翌日集熱し
た太陽熱エネルギーを供給する太陽熱コレクタと、それ
らを制御する制御装置とから構成されている。FIG. 1 is a block diagram of a late-night electric water heater using solar heat according to an embodiment. These late-night electric water heaters that use solar heat can be roughly divided into solar radiation prediction sensors that predict the next day's solar radiation, and electric water heaters that heat water with late-night electricity whose power consumption is determined based on the predicted value of the solar radiation prediction sensor. It consists of a solar heat collector that supplies the electric water heater with solar heat energy collected the next day, and a control device that controls them.
日射量予測センサ１は翌日の昼間の天候をその日の温度
、湿度、気圧等の変化から推定して翌日の日射量を予測
し、その予測値は電気温水器により給水に与える熱量す
なわち深夜電気の電力量を設定する。電気温水器は、密
閉容器である蓄熱槽２と、蓄熱槽２内の下部に設けられ
た内容器３ａとその内容器３ａから上方に伸びる筒３ｂ
とからなり筒３ｂと内容器３ａの間を開閉するコントロ
ール弁３ｃを設けた循環浴３と、内容器中３ａに設けら
れたヒータ４と、内容器３ａの下に設けられた熱交換器
５と、蓄熱槽２の外側でほぼ頂部と底部を接続する配管
経路に設けられた循環混合ポンプ６とからなり、そして
蓄熱槽２の底部には給水用配管７が、また蓄熱槽２頂部
には給湯用配管８が設けられている。また内容器３ａの
底には給水を内容器内に導く導入孔３ｄが設けられ、ま
た、内容器３ａと蓄熱槽２の間には上下を導通するすき
間２ａが設けられている。太陽熱コレクタ９は。The solar radiation prediction sensor 1 estimates the next day's daytime weather from changes in temperature, humidity, atmospheric pressure, etc. on that day and predicts the next day's solar radiation. Set the amount of electricity. The electric water heater includes a heat storage tank 2 which is a sealed container, an inner container 3a provided at the bottom of the heat storage tank 2, and a cylinder 3b extending upward from the inner container 3a.
A circulating bath 3 provided with a control valve 3c that opens and closes between the cylinder 3b and the inner container 3a, a heater 4 provided in the inner container 3a, and a heat exchanger 5 provided below the inner container 3a. and a circulation mixing pump 6 installed on a piping route that connects the top and bottom of the heat storage tank 2 on the outside of the heat storage tank 2, and a water supply pipe 7 at the bottom of the heat storage tank 2, and a water supply pipe 7 at the top of the heat storage tank 2. A hot water supply pipe 8 is provided. Further, an introduction hole 3d for guiding the water supply into the inner container is provided at the bottom of the inner container 3a, and a gap 2a is provided between the inner container 3a and the heat storage tank 2 for conducting the upper and lower sides. Solar collector 9.
蓄熱槽２の中の熱交換器５にそれぞれ配管１０゜１１に
より往復接続され、そしてその配管経路には太陽熱コレ
クタ９中の水温と蓄熱槽２底部の水温との差を検出する
差温計１２により駆動制御される集熱ポンプ１３が設置
されている。The heat exchanger 5 in the heat storage tank 2 is connected to the heat exchanger 5 through pipes 10° and 11, respectively, and a differential thermometer 12 is installed in the pipe route to detect the difference between the water temperature in the solar heat collector 9 and the water temperature at the bottom of the heat storage tank 2. A heat collecting pump 13 whose drive is controlled by is installed.
次に太陽熱利用深夜電気温水器における給水及び温水等
の流体の流れについて説明する。給水用配管６から蓄熱
槽２に供給された給水は導入孔３ｄを通じて内容器３ａ
に入り、そこでヒータ４により深夜電気で沸き上げられ
沸き上げられた温水は筒３ｂを通じて循環浴３から対流
により蓄熱槽２の上部に上がり、蓄えられる。なお、コ
ントロール弁３ｃは、通常“閉”となっており、内容器
３ａの中の温水が設定温度に上昇した時に“開”となり
、温水を上方に導く。一方太陽熱コレクタ９で太陽熱に
より加熱された流体は往復配管１０゜１１を介して蓄熱
槽２の底部に設けられた熱交換器５との間を集熱ポンプ
により循環させられて蓄熱槽２の給水と熱交換し、その
熱交換により沸き上げられた温水は蓄熱槽２の下部に滞
留する。蓄熱槽２の下部に滞留するのは、通常、熱交換
器により沸き上げられた温水はヒータ４により沸き上げ
られた温水よりも低温であるためである。給湯時には、
蓄熱槽２の上部及び下部に蓄えられた温水は循環混合ポ
ンプ６により循環混合ポンプ６の配管と蓄熱槽２のすき
間２ａを通って循環させられながら混合して均一な温度
になり、均一な温度の温水はそれから給湯配管８を通っ
て給湯され、たとえば風呂に供給される。Next, the flow of fluids such as water supply and hot water in the late-night electric water heater using solar heat will be explained. The water supplied from the water supply pipe 6 to the heat storage tank 2 is supplied to the inner container 3a through the introduction hole 3d.
There, the heated water is heated up late at night by the heater 4 using electricity, and the hot water rises from the circulation bath 3 through the cylinder 3b to the upper part of the heat storage tank 2 by convection and is stored therein. Note that the control valve 3c is normally "closed" and becomes "open" when the temperature of the hot water in the inner container 3a rises to the set temperature, thereby guiding the hot water upward. On the other hand, the fluid heated by solar heat in the solar heat collector 9 is circulated between the heat exchanger 5 provided at the bottom of the heat storage tank 2 via reciprocating pipes 10 and 11 by a heat collection pump, and the water is supplied to the heat storage tank 2. The hot water heated by the heat exchange stays in the lower part of the heat storage tank 2. The reason why the hot water stays in the lower part of the heat storage tank 2 is because the hot water heated by the heat exchanger is usually lower in temperature than the hot water heated by the heater 4. When supplying hot water,
The hot water stored in the upper and lower parts of the heat storage tank 2 is circulated by the circulation mixing pump 6 through the gap 2a between the piping of the circulation mixing pump 6 and the heat storage tank 2, and mixed to have a uniform temperature. The hot water is then supplied through a hot water supply pipe 8, for example to a bath.
ここで、深夜電気により沸き上げられた温水と太陽熱を
利用して沸き上げられた温水を給湯時に混合する理由に
ついて述べておきたい。太陽熱コレクタにおいては低温
の流体を加熱する方が効率が良いことはよくしられてい
る。そのため蓄熱槽では、上部に高温の温水を、下部に
低温の温水を蓄えておき、この低温の温水と太陽熱コレ
クタで加熱された流体との間で熱交換器を介して熱の授
受を行うのが好ましい、もし蓄熱槽に蓄えた温水全体を
かきまぜて均一な温度にしたとすると、太陽熱コレクタ
の流体の温度が上がり、太陽熱コレクタにおける集熱効
率が低下する。流体が高温になりいわゆる高温集熱にな
ると、太陽熱コレクタの集熱効率が著しく低下して太陽
熱を有効に利用できなくなる。また前記混合を行うこと
によって太陽熱による沸き上げ温度を給湯温度より低く
設定することができ、この様にして得た給湯温度より低
温の温水を給湯に使用することができる為、太陽依存率
を向上することができる。上記太陽熱コレクタと、太陽
依存率の観点から、給湯時に蓄熱槽の温水を循環混合す
るのである。Here, I would like to explain the reason why hot water heated by electricity late at night and hot water heated by solar heat are mixed during hot water supply. It is well known that solar collectors are more efficient in heating cold fluids. Therefore, in a heat storage tank, high-temperature hot water is stored in the upper part and low-temperature hot water is stored in the lower part, and heat is exchanged between this low-temperature water and the fluid heated by the solar collector via a heat exchanger. If the entire hot water stored in the heat storage tank is stirred to have a uniform temperature, the temperature of the fluid in the solar collector will increase and the heat collection efficiency in the solar collector will decrease. When the fluid becomes high temperature and becomes so-called high-temperature heat collection, the heat collection efficiency of the solar heat collector decreases significantly, making it impossible to utilize solar heat effectively. In addition, by performing the above mixing, the boiling temperature using solar heat can be set lower than the water supply temperature, and hot water at a temperature lower than the hot water temperature obtained in this way can be used for hot water supply, improving the solar dependence ratio. can do. From the viewpoint of the solar heat collector and solar dependence rate, warm water in the heat storage tank is circulated and mixed during hot water supply.
次に太陽熱利用深夜電気温水器における制御、すなわち
日射量予測センサによる予測値を基−に電気温水基の給
湯負荷分担がどのように決定されるかを説明する。Next, we will explain the control of the late-night electric water heater using solar heat, that is, how the hot water supply load sharing of the electric hot water base is determined based on the predicted value by the solar radiation prediction sensor.
太陽熱利用深夜電気温水器が蓄えるへき給湯負荷をＱと
し、この給湯負荷Ｑは電気温水器により与える熱量ＱＥ
と太陽熱集熱により与える熱量Ｑｓとでまかなわれるの
で、（１）式が成り立つ。Let Q be the hot water supply load stored by a late-night electric water heater using solar heat, and this hot water supply load Q is equal to the amount of heat QE provided by the electric water heater.
and the amount of heat Qs provided by solar heat collection, so equation (1) holds true.
Ｑ ＝ ＱＥ＋ ＱＳ （１）なお熱量
Ｑｓの値は日射量予測センサにより与えられるものであ
る。さらにＱは（２）式のように表すことができる。Q=QE+QS (1) The value of the amount of heat Qs is given by the solar radiation prediction sensor. Furthermore, Q can be expressed as in equation (2).
Ｑ＝ （ＴＥ−Ｔｏ） （Ｓ−ＶＳ）＋ΔＴ Ｖｓ−
（２）Ｑε＝ （ＴＥ−Ｔ、）（Ｓ−Ｖｓ）
Ｑｓ＝△ＴＶｓ
ここでＴＥ：深夜電気による沸き上げ温度Ｔ０：給水温
度
ｖｓ：太陽熱を利用して加熱される給水量△Ｔ：太陽熱
により給水が昇温する温度幅Ｓ：蓄熱槽容量
である。Q= (TE-To) (S-VS)+ΔT Vs-
(2) Qε= (TE-T, )(S-Vs) Qs=△TVs where TE: Boiling temperature by late night electricity T0: Water supply temperature vs: Amount of water supplied using solar heat △T: Solar heat Temperature width S in which the temperature of the supplied water rises is the heat storage tank capacity.
太陽熱により給水が昇温する温度幅△Ｔは、給水ｊｔ
Ｖ ｓの関数であり、（３）式で示される。The temperature range △T in which the water supply rises due to solar heat is the water supply jt
It is a function of V s and is expressed by equation (3).
△Ｔ ＝ ｆ、 （Ｖｓ） −（３）（２）、（３
）式から（４）式が求まる。△T = f, (Vs) −(3)(2), (3
) equation (4) can be found from equation (4).
Ｑ＝ （ＴＥ−Ｔｏ）（Ｓ Ｖｓ）＋ｆ、（Ｖｓ）Ｖ
ｓ−（４）次に太陽熱利用電気温水器が太陽熱に依存す
る太陽熱依存率をｆ２（Ｑｓ）とすると
従来の気象データから日射量を推定するソーラーシュミ
レーションより求められる、日射量Ｊと太陽熱依存率ｆ
２（Ｑｓ）の関係を示す関数をｆｉ （Ｊ）とすると、
ｆ２（Ｑｓ）＝ｆ、（Ｊ）
上記２つの式から次の（５）式が得られる。Q=(TE-To)(SVs)+f,(Vs)V
s-(4) Next, let f2 (Qs) be the solar heat dependence rate at which the solar electric water heater depends on solar heat, then the solar radiation J and the solar heat dependence rate obtained from solar simulation, which estimates the solar radiation from conventional weather data. f
2(Qs), then f2(Qs)=f, (J) The following equation (5) is obtained from the above two equations.
△Ｔ＝ ｆ （Ｊ）・・・（６）００Ｖｓ
（６）式に予測される日射量Ｊｘを代入すると、太陽熱
を利用して加熱する給水量Ｖｓとその沸き上げ温度幅Δ
Ｔとの関係、すなわちｆ工（Ｖｓ）が決定される。この
ｆ工（Ｖｓ）と（４）式から、太陽熱を利用して沸き上
げる給水量ＶＳが求まり、さらに電気温水器で沸き上げ
るべき給水量（Ｓ−Ｖｓ）が求まる。△T= f (J)...(6)00Vs Substituting the predicted amount of solar radiation Jx into equation (6), the amount of water to be heated using solar heat Vs and its boiling temperature range Δ
The relationship with T, that is, f(Vs) is determined. From this f(Vs) and equation (4), the amount of water VS to be heated using solar heat is determined, and the amount of water to be heated (S-Vs) to be heated by the electric water heater is further determined.
本発明によれば、太陽熱利用深夜電気温水器は、翌日の
日射量を予測する日射量予測センサと、日射量の予測値
から求まる熱量を所定熱量から引いた差分の熱量を深夜
電気を用いて給水に与えるヒータと、ヒータで沸き上が
った温水を上部に蓄え、底部では太陽熱コレクタに接続
した熱交換器で加熱された温水を蓄える蓄熱槽と、温水
をかきまぜる混合ポンプを備えており、（ａ）従来太陽
熱温水器と深夜電気温水器を組合せて２つの貯湯槽を用
いていたのに対し一つの蓄熱槽を設けるだけでよく、（
ｂ）深夜電気で給水を加熱した後、太陽熱を利用して、
太陽熱利用から給湯までの経過時間が短くできるので、
集熱した太陽熱を放熱少く有効に利用でき、（ｃ）蓄熱
槽底部にある低温の給水から太陽熱により温水を作るの
で、太陽熱コレクタの集熱効率がよく、（ｄ）翌日の日
射量を予測して深夜電気により給水を沸き上げ、太陽熱
により給水を沸き上げてから、給湯時に作られた温水を
かきまぜるので、蓄熱槽全量の温水を利用できる、とい
う効果がある。According to the present invention, the late-night electric water heater using solar heat uses a solar radiation prediction sensor that predicts the next day's solar radiation, and a late-night electricity that calculates the difference between the amount of heat obtained from the predicted value of the amount of solar radiation and the predetermined amount of heat. It is equipped with a heater that supplies water, a heat storage tank that stores hot water boiled by the heater at the top, a heat storage tank that stores hot water heated by a heat exchanger connected to a solar collector at the bottom, and a mixing pump that stirs the hot water. (a) Conventionally, two hot water storage tanks were used by combining a solar water heater and a late-night electric water heater, but now only one heat storage tank is required.
b) After heating the water supply with electricity late at night, using solar heat,
The elapsed time from solar heat utilization to hot water supply can be shortened,
Collected solar heat can be used effectively with little radiation; (c) hot water is created from the low-temperature water supply at the bottom of the heat storage tank using solar heat, so the heat collection efficiency of the solar collector is good; and (d) the amount of solar radiation for the next day can be predicted. The system heats the water supply late at night using electricity, heats the water using solar heat, and then stirs the hot water produced during hot water supply, making it possible to use the entire amount of hot water in the heat storage tank.
第１図は本発明による実施例の太陽熱利用深夜電気温水
器の構成図である。
１・・・日射量予測センサ、２・・・蓄熱槽、２ａ・・
・すき間、３・・・循環基、３ａ・・・内容器、３ｂ・
・筒、３Ｃ・・・コントロール弁、３ｄ・・・導入孔、
４・ヒータ、訃・・熱交換器、６・・・循環混合ポンプ
、７・・・給水配管、８・・給湯配管、９・・・太陽熱
コレクタ、１０゜１１・・往復配管、１２・・・差温針
、１３・・・集熱ポンプ。FIG. 1 is a block diagram of a late-night electric water heater using solar heat according to an embodiment of the present invention. 1... Solar radiation prediction sensor, 2... Heat storage tank, 2a...
・Gap, 3... Circulating group, 3a... Inner container, 3b.
・Cylinder, 3C...Control valve, 3d...Introduction hole,
4. Heater, heat exchanger, 6. Circulation mixing pump, 7. Water supply piping, 8. Hot water supply piping, 9. Solar collector, 10°11. Reciprocating piping, 12.・Differential temperature needle, 13... Heat collection pump.
Claims (1)
射量予測センサの予測値から求められる熱量を所定熱量
から差し引いた差分の熱量を深夜電気を用いて給水に与
えるヒータと、該ヒータにより沸き上げられた温水を上
部に蓄える蓄熱槽と、翌日の日射量を集める太陽熱コレ
クタと、該太陽熱コレクタに循環ポンプを介して接続し
かつ前記蓄熱槽底部に設置されて給水と熱交換して温水
をつくる熱交換器と、前記蓄熱槽に蓄えた温水をかきま
ぜる混合ポンプとを備えた太陽熱利用深夜電気温水器。 ２、前記混合ポンプは前記蓄熱槽の上部と底部を接続す
る配管経路内に設けられ、温水を循環させて混合するこ
とを特徴とする請求項１記載の太陽熱利用深夜電気温水
器。[Scope of Claims] 1. A solar radiation prediction sensor that predicts the next day's solar radiation, and a system that uses late-night electricity to supply water by using the difference in the amount of heat obtained by subtracting the amount of heat determined from the predicted value of the solar radiation prediction sensor from the predetermined amount of heat. a heat storage tank that stores hot water boiled by the heater in the upper part; a solar heat collector that collects the next day's solar radiation; and a solar heat collector connected to the solar heat collector via a circulation pump and installed at the bottom of the heat storage tank. A late-night electric water heater using solar heat, which is equipped with a heat exchanger that exchanges heat with the supplied water to create hot water, and a mixing pump that stirs the hot water stored in the heat storage tank. 2. The late-night electric water heater using solar heat as claimed in claim 1, wherein the mixing pump is installed in a piping route connecting the top and bottom of the heat storage tank to circulate and mix hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9189190A JP2756853B2 (en) | 1990-04-06 | 1990-04-06 | Midnight electric water heater using solar heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9189190A JP2756853B2 (en) | 1990-04-06 | 1990-04-06 | Midnight electric water heater using solar heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03291462A true JPH03291462A (en) | 1991-12-20 |
| JP2756853B2 JP2756853B2 (en) | 1998-05-25 |
Family
ID=14039183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9189190A Expired - Fee Related JP2756853B2 (en) | 1990-04-06 | 1990-04-06 | Midnight electric water heater using solar heat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2756853B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007018275A (en) * | 2005-07-07 | 2007-01-25 | Fuji Electric Holdings Co Ltd | Sunlight hour estimating device |
| JP2010112680A (en) * | 2008-11-10 | 2010-05-20 | Denso Corp | Storage type hot water supply device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5343867B2 (en) * | 2010-01-12 | 2013-11-13 | 株式会社デンソー | Hybrid water heater |
-
1990
- 1990-04-06 JP JP9189190A patent/JP2756853B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007018275A (en) * | 2005-07-07 | 2007-01-25 | Fuji Electric Holdings Co Ltd | Sunlight hour estimating device |
| JP2010112680A (en) * | 2008-11-10 | 2010-05-20 | Denso Corp | Storage type hot water supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2756853B2 (en) | 1998-05-25 |
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| LAPS | Cancellation because of no payment of annual fees |