JP2002147870A - Solar water heater - Google Patents

Solar water heater

Info

Publication number
JP2002147870A
JP2002147870A JP2000339974A JP2000339974A JP2002147870A JP 2002147870 A JP2002147870 A JP 2002147870A JP 2000339974 A JP2000339974 A JP 2000339974A JP 2000339974 A JP2000339974 A JP 2000339974A JP 2002147870 A JP2002147870 A JP 2002147870A
Authority
JP
Japan
Prior art keywords
hot water
water
heat
storage tank
solar
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
Application number
JP2000339974A
Other languages
Japanese (ja)
Inventor
Naotoshi Inoue
直稔 井上
Hirofumi Ishida
浩文 石田
Hiroshi Shinozaki
浩 篠崎
Satoshi Ichinei
智 市根井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP2000339974A priority Critical patent/JP2002147870A/en
Publication of JP2002147870A publication Critical patent/JP2002147870A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Landscapes

  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a solar water heater, enabling a user to know how much energy is saved. SOLUTION: The solar water heater comprises a solar heat collector and a body. The solar heat collector and the body are connected with each other by two circulation paths. The body has in an interior thereof a hot water storage tank, having a heat exchanger and supplies hot water to the outside. An inflow thermal energy detecting means for water flowing into the hot water storage tank and an outflow thermal energy detecting means for water flowing out of the tank are provided, and a means for displaying the saved quantity of heat is provided. The means for displaying the saved quantity of heat calculates the sum of the quantity of heat collected by the solar heat collector and heat losses at the respective parts, on the basis of the difference between the inflow thermal energy detecting means and the outflow thermal energy detecting means and displays the result of calculation.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、太陽熱給湯機に関
する。
TECHNICAL FIELD The present invention relates to a solar water heater.

【0002】[0002]

【従来の技術】まず、従来の太陽熱集熱器1と太陽熱給
湯機2の構成を図5、図6を用いて説明する。太陽熱給
湯機の構造は、太陽熱集熱器1を1面以上設置し、熱媒
体を太陽熱集熱器1、循環通路10、貯湯タンク9内の
熱交換器11に充填して循環ポンプ12で循環して、太
陽熱集熱器1で熱媒体を温め、これを貯湯タンク9内の
熱交換器11から補助タンク19へ戻し、熱交換器11
によって熱交換し貯湯タンク9内の水を温水化するもの
である。また、本体2の給水経路としては、上水道を本
体2の給水接続口13に直接接続して、給水通路14を
経て貯湯タンク9に充填し、太陽熱により温水化した
後、使用時には上水道の圧力により給湯通路15を経て
給湯接続口16より配出される。また、一般的には太陽
熱給湯機と別付の補助熱源機17を接続し、日射量の少
ない雨天や冬期の温水温度が十分に上がらない場合等
は、この補助熱源機17により補助加熱した後、各水
栓、浴槽等に給湯される。
2. Description of the Related Art First, the configuration of a conventional solar heat collector 1 and a solar water heater 2 will be described with reference to FIGS. The structure of the solar water heater is such that one or more solar heat collectors 1 are installed, a heat medium is filled in the solar heat collector 1, the circulation passage 10, and the heat exchanger 11 in the hot water storage tank 9 and circulated by the circulation pump 12. Then, the heat medium is warmed by the solar heat collector 1 and returned to the auxiliary tank 19 from the heat exchanger 11 in the hot water storage tank 9.
The water in the hot water storage tank 9 is heated by the heat exchange. In addition, as a water supply path of the main body 2, the water supply is directly connected to the water supply connection port 13 of the main body 2, filled in the hot water storage tank 9 through the water supply passage 14, and heated by solar heat, and then used by the pressure of the water supply at the time of use. The hot water is supplied from a hot water supply connection port 16 through a hot water supply passage 15. In addition, in general, a solar water heater is connected to an auxiliary heat source unit 17 provided separately, and when the temperature of hot water in the rain or the winter season when the amount of solar radiation is insufficient does not rise sufficiently, the auxiliary heat source unit 17 is used to perform auxiliary heating. Hot water is supplied to each faucet, bathtub, etc.

【0003】補助熱源機17との接続は、図5に示すよ
うに、補助熱源機17の給湯出口と太陽熱給湯機本体2
の給湯出口において、三方切替弁21により合流させ、
切替えを可能とする給湯配管が多い。この時、使用者は
使用温度により前記水路切替弁21を、遠隔操作機で給
湯経路を選択する。また、補助熱源機17が全自動給湯
機、特に浴槽へ自動注湯するような機器である場合に
は、高温の湯を直接補助熱源機17に流入させると、使
用者の設定した温度より高い温度の湯が浴槽に張られる
恐れがあるために、恒温湯水混合弁22を使用し、予め
貯湯タンク9内の温水と給水通路14から供給される水
とを混合し、温度を下げてから補助熱源機17に入水さ
せる配管方法もある。図7に示す貯湯タンク9の貯湯量
を表示する表示器20が知られている。
As shown in FIG. 5, a connection between the auxiliary heat source unit 17 and the hot water supply outlet of the auxiliary heat source unit 17
At the hot water supply outlet of the three-way switching valve 21,
There are many hot water supply pipes that can be switched. At this time, the user selects the hot water supply path by using the water path switching valve 21 and the remote controller according to the operating temperature. Further, when the auxiliary heat source unit 17 is a fully automatic water heater, particularly a device for automatically pouring water into a bathtub, when high-temperature hot water flows directly into the auxiliary heat source unit 17, the temperature becomes higher than the temperature set by the user. Since there is a risk that hot water of the temperature may be spread over the bathtub, a constant-temperature hot-water mixing valve 22 is used to mix the hot water in the hot-water storage tank 9 and the water supplied from the water supply passage 14 in advance, to lower the temperature, and then to supplement. There is also a piping method for entering water into the heat source device 17. An indicator 20 for displaying the amount of hot water stored in the hot water storage tank 9 shown in FIG. 7 is known.

【0004】[0004]

【発明が解決しようとする課題】しかし、図7に示す表
示器20では、どれだけのエネルギーが節約できたのか
知ることができない。太陽熱給湯機は、エネルギー節約
のため無尽蔵の太陽エネルギーを有効利用するためのも
のであり、どれだけのエネルギーが節約できたのか知る
ことは、使用者が太陽熱給湯機を有効に使うために影響
する。
However, the indicator 20 shown in FIG. 7 cannot tell how much energy has been saved. Solar water heaters are designed to make effective use of inexhaustible solar energy to save energy, and knowing how much energy has been saved will affect users' effective use of solar water heaters. .

【0005】本発明は、どれだけのエネルギーが節約で
きたのか知ることができる太陽熱給湯機を提供すること
を目的とする。
[0005] The object of the present invention is to provide a solar water heater in which it is possible to know how much energy has been saved.

【0006】[0006]

【課題を解決するための手段】本発明は、以下のことを
特徴とする。 (1)太陽熱集熱器と本体からなり、前記太陽熱集熱器
と本体は、熱媒体を循環させるための二本の循環通路で
連結され、前記本体内部には熱交換器を備えた貯湯タン
クを設け、外部に給湯する太陽熱給湯機において、貯湯
タンクに流入する水の流入熱エネルギー検出手段と、貯
湯タンクから流出する水の流出熱エネルギー検出手段と
を備え、流入熱エネルギー検出手段と流出熱エネルギー
検出手段との差から、太陽熱集熱器での集熱量と各部位
での熱損失の和を演算し、演算結果を表示する節約熱量
表示手段を設けた太陽熱給湯機。 (2)流入熱エネルギー検出手段が、貯湯タンクへの流
入する水の温度を検出する入水温検出手段と、貯湯タン
クへ流入する水の水量を検出する入水量検出手段と、入
水温検出手段と入水量検出手段の出力を演算する流入熱
エネルギー演算部とからなり、流出熱エネルギー検出手
段が、貯湯タンクから流出する水の温度を検出する出水
温検出手段と、貯湯タンクから流出する水の水量を検出
する出水量検出手段と、出水温検出手段と出水量検出手
段の出力を演算する流出熱エネルギー演算部からなる
(1)に記載の太陽熱給湯機。 (3)太陽熱集熱器と本体からなり、前記太陽熱集熱器
と本体は、熱媒体を循環させるための二本の循環通路で
連結され、前記本体内部には熱交換器を備えた貯湯タン
クを設け、外部に給湯する太陽熱給湯機において、貯湯
タンクに流入する水の流入熱エネルギー検出手段と、貯
湯タンクから流出する湯の流出熱エネルギー検出手段
と、機器を構成する電気部品の消費電力量を演算する消
費電力演算手段を備え、流入熱エネルギー検出手段と流
出する湯の流出熱エネルギー検出手段との差から、太陽
熱集熱器での集熱量と各部位での熱損失の和を演算し、
更に消費電力演算手段の演算結果を減じたエネルギー量
を表示する節約熱量表示手段を設けた太陽熱給湯機。 (4)消費電力演算手段が、機器を構成する電気部品の
稼動時間から消費電力量を演算する手段である(3)に
記載の太陽熱給湯機。
The present invention is characterized by the following. (1) A hot water storage tank comprising a solar heat collector and a main body, wherein the solar heat collector and the main body are connected by two circulation passages for circulating a heat medium, and a hot water storage tank having a heat exchanger inside the main body. A solar water heater that supplies hot water to the outside, comprising a means for detecting inflow thermal energy of water flowing into the hot water storage tank, and a means for detecting thermal energy of outflow of water flowing out of the hot water storage tank. A solar water heater provided with a conserved heat amount display means for calculating a sum of a heat collection amount in a solar heat collector and a heat loss in each part from a difference from an energy detection means and displaying a calculation result. (2) Inflow thermal energy detection means for detecting the temperature of water flowing into the hot water storage tank, input water quantity detection means for detecting the amount of water flowing into the hot water storage tank, and input water temperature detection means An inflow thermal energy calculation unit for calculating an output of the water input amount detection means, wherein the outflow thermal energy detection means detects a temperature of water flowing out of the hot water storage tank, and an amount of water flowing out of the hot water storage tank (1). The solar water heater according to (1), comprising: a water discharge amount detecting means for detecting the water temperature; and an outflow heat energy calculating unit for calculating outputs of the water discharge temperature detecting means and the water discharge amount detecting means. (3) A hot water storage tank comprising a solar heat collector and a main body, wherein the solar heat collector and the main body are connected by two circulation passages for circulating a heat medium, and a hot water storage tank having a heat exchanger inside the main body. In the solar water heater that supplies hot water to the outside, means for detecting the inflow thermal energy of the water flowing into the hot water storage tank, the means for detecting the thermal energy outflow of the hot water flowing out of the hot water storage tank, and the power consumption of electric components constituting the device From the difference between the inflow heat energy detection means and the outflow heat energy detection means for the hot water flowing out, and calculates the sum of the heat collection amount in the solar heat collector and the heat loss in each part. ,
Further, a solar water heater provided with a saved heat amount display means for displaying an energy amount obtained by subtracting the calculation result of the power consumption calculation means. (4) The solar water heater according to (3), wherein the power consumption calculating means is means for calculating the amount of power consumption based on the operation time of the electric components constituting the device.

【0007】[0007]

【発明の実施の形態】本発明においては、熱媒体は、太
陽熱集熱器から本体内の熱交換器へ熱エネルギーを移動
することができれば、適宜用いることができる。特に
は、水やプロピレングリコール水溶液が好ましい。
DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a heat medium can be used as long as heat energy can be transferred from a solar heat collector to a heat exchanger in a main body. In particular, water and an aqueous solution of propylene glycol are preferred.

【0008】入水量検出手段および出水量検出手段は、
入水量あるいは出水量を検出できるものであれば、適宜
用いることができる。特には、水路に設けた羽根が水流
によって回転し、羽根に設けた磁石の回転をホールIC
によって検出する水量センサや水と湯との温度と混合後
の温度から入水量を演算する方法が好ましい。
[0008] The water input amount detection means and the water output amount detection means,
As long as the amount of incoming water or the amount of discharged water can be detected, it can be appropriately used. In particular, the blade provided in the water channel rotates due to the water flow, and the rotation of the magnet provided in the blade is determined by a Hall IC.
It is preferable to calculate the amount of incoming water from the temperature of the water and the hot water and the temperature after mixing with the temperature of the water and the hot water detected by the method.

【0009】入水温検出手段および出水温検出手段は、
各水温を検出できるものであれば、適宜用いることもで
きる。特には、サーミスタが好ましい。
[0009] The incoming water temperature detecting means and the outgoing water temperature detecting means,
Any water temperature can be detected as appropriate. In particular, a thermistor is preferable.

【0010】節約熱量表示手段は、節約熱量を表示する
ことができれば、本体との信号の伝達方法の如何にかか
わらず適宜用いることができる。特には、有線式の遠隔
操作機に設けるのが好ましい。また表示単位は、J、W
h、cal等適宜用いることができる。特には、電力量
の単位として使用されているWhが電気料金の比較する
上で好ましい。更には、単位料金を機器に設定すること
で換算し、円で表示することも好ましい。更には、月単
位、年単位での表示モードを設け、比較の容易な表示と
することも好ましい。
The saved heat amount display means can be appropriately used as long as the saved heat amount can be displayed irrespective of the method of transmitting signals to and from the main body. In particular, it is preferably provided in a wired remote controller. The display unit is J, W
h, cal, etc. can be used as appropriate. In particular, Wh, which is used as a unit of electric energy, is preferable for comparing electricity rates. Further, it is also preferable to convert the unit fee by setting it in the device and display it in yen. Furthermore, it is also preferable to provide a display mode in units of months or years so that the display can be easily compared.

【0011】[0011]

【実施例】本発明の実施例を図1を用いて説明する。貯
湯タンク9内には太陽熱集熱器1に接続された循環通路
10と熱交換器11が設置されている。この時、前記循
環通路10に充填されたプロピレングリコール水溶液が
熱媒体となって、貯湯タンク9内の水を温めるようにな
っている。尚、本実施例では、熱媒体を充填させるため
に循環通路10に補助タンク19を設置している。
An embodiment of the present invention will be described with reference to FIG. In the hot water storage tank 9, a circulation passage 10 connected to the solar heat collector 1 and a heat exchanger 11 are provided. At this time, the aqueous propylene glycol solution filled in the circulation passage 10 serves as a heat medium to heat the water in the hot water storage tank 9. In this embodiment, an auxiliary tank 19 is provided in the circulation passage 10 to fill the heat medium.

【0012】貯湯タンク9への給水は、給水接続口13
より入水量検出手段7を設けた給水通路14を通して行
われ、貯湯タンク9からの出湯は、給湯通路15によっ
て行われる。貯湯タンク9へ流入する水の量と流出する
湯の量は同一であり、入水量検出手段7で出水量検出手
段を兼ねることができる。給水通路14はその途中にお
いて、貯湯タンク9へ給水される通路と恒温湯水混合弁
22に給水する湯水混合弁給水通路24に分かれる。給
湯通路15には、恒温湯水混合弁22に接続する。給水
接続口13には、入水温度を検出する入水温度サーミス
タ23が設けてある。貯湯タンク9出口には、貯湯タン
クからの出水温を検出する出水温度サーミスタ18が設
けてある。また、本体内部には、上記サーミスタ、入水
量検出手段7等の検出結果を演算、制御するコントロー
ラ3を設けてあり、コントローラ3には遠隔操作用のリ
モコン29が接続されている。集熱動作により温められ
た水が貯湯タンク9に貯湯され、恒温湯水混合弁22で
湯と水を混合し、適温に調整し給湯接続口より給湯す
る。恒温湯水混合弁22は、図4に一例を示す電動湯水
混合弁4を用いても良い。モータで弁体32を上下に駆
動させ弁体32の開閉度により、湯と水の混合比を調節
するものである。図4(a)においては、湯側を全閉状
態にした図を示し、図4(b)においては、水側を全閉
状態にした図となっており、出口部に出湯温度サーミス
タ25を設けている。この場合、電動湯水混合弁4は、
コントローラ3で設定温度となるよう制御されるが、こ
のとき、入水温度サーミスタ23、出水温度サーミスタ
18の出力でフィードフォワード制御を行い、出湯温度
サーミスタ25を用い補正する制御を行うことができ
る。給湯動作、貯湯タンク9への入水量を入水量検出手
段7で検出、これをQinとする。入水温を入水温度サ
ーミスタ23で検出、これをTinとする。また、出水
温を出水温度サーミスタ18で検出、これをToutと
する。
Water is supplied to the hot water storage tank 9 through a water supply connection port 13.
The hot water is supplied through a water supply passage 14 provided with the water entering amount detecting means 7, and the hot water from the hot water storage tank 9 is supplied through a hot water supply passage 15. The amount of water flowing into the hot water storage tank 9 and the amount of hot water flowing out are the same, and the water input amount detection means 7 can also serve as the water output amount detection means. On the way, the water supply passage 14 is divided into a passage for supplying water to the hot water storage tank 9 and a water / water mixing valve water supply passage 24 for supplying water to the constant temperature water / water mixing valve 22. The hot water supply passage 15 is connected to a constant temperature hot water mixing valve 22. The water supply connection port 13 is provided with an incoming water temperature thermistor 23 for detecting the incoming water temperature. At the outlet of the hot water storage tank 9, there is provided a water discharge temperature thermistor 18 for detecting the temperature of water discharged from the hot water storage tank. Further, a controller 3 for calculating and controlling the detection results of the thermistor, the water entering amount detecting means 7 and the like is provided inside the main body, and a remote controller 29 for remote operation is connected to the controller 3. The water heated by the heat collecting operation is stored in the hot water storage tank 9, mixed with hot water and water by the constant temperature hot water mixing valve 22, adjusted to an appropriate temperature, and supplied from the hot water supply connection port. As the constant temperature hot water mixing valve 22, the electric hot water mixing valve 4 whose example is shown in FIG. 4 may be used. The valve element 32 is driven up and down by a motor to adjust the mixing ratio of hot water and water according to the degree of opening and closing of the valve element 32. FIG. 4 (a) shows a view in which the hot water side is in a fully closed state, and FIG. 4 (b) shows a view in which the water side is in a fully closed state. Provided. In this case, the electric hot water mixing valve 4
The controller 3 controls the temperature to be the set temperature. At this time, it is possible to perform feedforward control based on the outputs of the incoming water temperature thermistor 23 and the outgoing water temperature thermistor 18, and perform control for correction using the outgoing water temperature thermistor 25. The hot water supply operation and the amount of water entering the hot water storage tank 9 are detected by the water entering amount detecting means 7, and this is defined as Qin. The incoming water temperature is detected by the incoming water temperature thermistor 23, and this is defined as Tin. Further, the water discharge temperature is detected by the water discharge temperature thermistor 18, and this is set as Tout.

【0013】 流入熱エネルギーEinは、Qin×Tin 流出熱エネルギーEoutは、Qin×Tout 節約熱量は、Eout−Einであり、これらの演算を
コントローラ3にて行う。
Inflow heat energy Ein is Qin × Tin Outflow heat energy Eout is Qin × Tout The amount of heat saved is Eout−Ein, and the controller 3 performs these calculations.

【0014】ここで貯湯タンク9に流入してきた水は、
貯湯タンク9内に一旦貯湯されており、瞬時に流出する
のではないため、流入熱エネルギーEinと比較する流
出熱エネルギーEoutは、貯湯タンク9の内容積と流
入量から演算できる時間Tdの遅れがある。このため、
流出熱エネルギーEoutと比較する流入熱エネルギー
Einは、時間Td遡った値を用いることが好ましい。
節約熱量Eをリモコン29に設けた、表示部28に表示
する。
Here, the water flowing into the hot water storage tank 9 is:
Since the hot water is temporarily stored in the hot water storage tank 9 and does not flow out instantaneously, the outflow heat energy Eout to be compared with the inflow heat energy Ein has a delay of a time Td which can be calculated from the inner volume and the inflow amount of the hot water storage tank 9. is there. For this reason,
As the inflow heat energy Ein to be compared with the outflow heat energy Eout, it is preferable to use a value that goes back to the time Td.
The saved heat amount E is displayed on the display unit 28 provided on the remote controller 29.

【0015】別の実施例を図2および図3を用いて説明
する。貯湯タンク9への給水は、給水接続口13より給
水通路14を通して行われ、貯湯タンク9からの出湯は
給湯通路15によって行われる。給水通路4はその途中
において、入水量検出手段7を介し貯湯タンク9へ給水
される通路と補助熱源用電動湯水混合弁5に分かれる。
また、前記給湯通路15はその途中において、電動湯水
混合弁4と補助熱源用電動湯水混合弁5に接続する。補
助熱源用電動湯水混合弁5の出口は補助熱源給湯接続口
8、補助熱源機17を介し三方切替弁21に接続する。
一方電動湯水混合弁4の出口は、給湯接続口16を介し
三方切替弁21に接続する。三方切替弁21の出口は最
終給湯先である水栓(図示せず)に接続する。即ち、貯
湯タンク9内の温水を電動湯水混合弁4にて水と混合し
て三方切替弁21に給湯する経路と、貯湯タンク9内の
温水を補助熱源用電動湯水混合弁5にて水と混合して適
温恒温にした後に補助熱源機17にて再加熱した後、三
方切替弁21に給湯する経路を設ける。三方切替弁21
の役割は、経路を切替えることにある。
Another embodiment will be described with reference to FIGS. Water is supplied to the hot water storage tank 9 from a water supply connection port 13 through a water supply passage 14, and hot water from the hot water storage tank 9 is supplied through a hot water supply passage 15. On the way, the water supply passage 4 is divided into a passage for supplying water to the hot water storage tank 9 via the water input amount detection means 7 and an electric hot water mixing valve 5 for an auxiliary heat source.
The hot water supply passage 15 is connected to the electric hot water mixing valve 4 and the electric hot water mixing valve 5 for the auxiliary heat source in the middle thereof. The outlet of the electric hot water mixing valve 5 for the auxiliary heat source is connected to the three-way switching valve 21 via the auxiliary heat source hot water supply connection port 8 and the auxiliary heat source device 17.
On the other hand, the outlet of the electric hot water mixing valve 4 is connected to the three-way switching valve 21 via the hot water supply connection port 16. The outlet of the three-way switching valve 21 is connected to a faucet (not shown) which is a final hot water supply destination. That is, the hot water in the hot water storage tank 9 is mixed with water by the electric hot water mixing valve 4 and supplied to the three-way switching valve 21, and the hot water in the hot water storage tank 9 is mixed with the water by the auxiliary hot source electric hot water mixing valve 5. After the mixture is heated to a proper temperature and constant temperature and then reheated by the auxiliary heat source device 17, a route for supplying hot water to the three-way switching valve 21 is provided. Three-way switching valve 21
Is to switch the path.

【0016】次に切替の制御について説明すると、給水
接続口13から入水した水は、貯湯タンク9において太
陽熱エネルギーを熱媒体から熱交換器11により熱交換
されることにより温められ、その温度が所望温度以上で
ある場合には、電動湯水混合弁4により所望温度に調節
した後、給湯接続口16、三方切替弁21を介し水栓に
給湯する。貯湯タンク9にて所望温度に達しなかった場
合には、三方切替弁21を補助熱源機17側に切替え、
即ち、電動湯水混合弁4からの経路を塞ぎ、補助熱源用
電動湯水混合弁5で適温恒温にした後、補助熱源給湯接
続口8を介して補助熱源機17へ流入させ、補助熱源機
17にて所望温度に温めた後、三方切替弁21を介し水
栓へ給湯する。
Next, the switching control will be described. The water that has entered through the water supply connection port 13 is warmed by exchanging solar heat energy from the heat medium in the hot water storage tank 9 with the heat exchanger 11, and the temperature thereof is set to a desired value. When the temperature is equal to or higher than the desired temperature, the temperature is adjusted to the desired temperature by the electric hot / water mixing valve 4, and then the hot water is supplied to the faucet via the hot water supply connection port 16 and the three-way switching valve 21. If the desired temperature has not been reached in the hot water storage tank 9, the three-way switching valve 21 is switched to the auxiliary heat source unit 17 side,
That is, the path from the electric hot water mixing valve 4 is closed, the temperature is adjusted to an appropriate temperature with the electric hot water mixing valve 5 for auxiliary heat source, and then the heat is supplied to the auxiliary heat source device 17 through the auxiliary heat source hot water supply connection port 8, Then, the water is supplied to the faucet via the three-way switching valve 21.

【0017】電動湯水混合弁4と三方切替弁21の制御
は、貯湯タンク9の出口に設置したサーミスタ18から
の出力をコントローラ3に伝え、コントローラ3の司令
により温度調整および切替えしている。調整する温度
は、使用者が適宜所望する温度をコントローラ3に入力
することにより決定される。入力は、コントローラ3に
接続したリモコン29を介し行われる。即ち、この所望
する温度と電動湯水混合弁4と三方切替弁21を通じて
給湯される温度は一致することになる。また、補助熱源
用電動湯水混合弁5は、補助熱源機17に温度設定機能
がある場合、または入水温度に上限がある補助熱源機1
7に必要な物であり、設定した温度以上に貯湯タンク9
にて水が温められた場合に、この補助熱源用電動湯水混
合弁5にて水と混合し、設定温度以下にして補助熱源機
17に流入させ、また貯湯温度が補助熱源機17の温度
設定以下であっても、入水温度に上限を上回る場合は、
この補助熱源用電動湯水混合弁5にて水と混合し、補助
熱源機17への給水を上限以下にする役目を果たしてい
る。ここで流入熱エネルギーEinおよび流出熱エネル
ギーEoutは、前述の実施例と同様にコントローラ3
にて演算する。また循環ポンプ12、電動湯水混合弁
4、補助熱源用電動湯水混合弁5、三方切替弁21等の
単位時間当たりの消費電力を予めコントローラ3にて記
憶させ、これらの機器の稼動時間と単位時間当たりの消
費電力の積をコントローラ3で演算、和の消費電力量E
eを得る。
The electric hot water mixing valve 4 and the three-way switching valve 21 are controlled by transmitting an output from a thermistor 18 installed at the outlet of the hot water storage tank 9 to the controller 3, and controlling and switching the temperature by a command of the controller 3. The temperature to be adjusted is determined by the user inputting a desired temperature into the controller 3 as appropriate. The input is performed via a remote controller 29 connected to the controller 3. In other words, the desired temperature matches the temperature supplied by the hot and cold water mixing valve 4 and the three-way switching valve 21. The electric hot water mixing valve 5 for the auxiliary heat source is provided when the auxiliary heat source device 17 has a temperature setting function, or when the input water temperature has an upper limit.
Necessary for the hot water storage tank 9
When the water is warmed by the water heater, the water is mixed with the water by the electric hot water mixing valve 5 for auxiliary heat source, the temperature is lowered to a set temperature or less, and flows into the auxiliary heat source device 17. If the inlet water temperature exceeds the upper limit even if it is below,
The auxiliary heat source electric hot / water mixing valve 5 mixes the water with the water and plays a role of reducing the water supply to the auxiliary heat source device 17 to the upper limit or less. Here, the inflow heat energy Ein and the outflow heat energy Eout are stored in the controller 3 in the same manner as in the above embodiment.
Is calculated. In addition, the controller 3 stores in advance the power consumption per unit time of the circulation pump 12, the electric hot water mixing valve 4, the electric hot water mixing valve 5 for the auxiliary heat source, the three-way switching valve 21, and the like. The product of the power consumption per unit is calculated by the controller 3, and the total power consumption E
e.

【0018】節約熱量Eは、Eout−Ein−Eeで
あり、これを図3に示すリモコン29の表示部28で表
示すると共に、上げる下げるスイッチ30により、設定
温度表示部26の表示を変更し給湯温度の設定にて行
う。また、運転切替スイッチ27により電動湯水混合弁
4および三方切替弁21の切替えを前述したように自動
で切り替える場合と、太陽熱給湯機または補助熱源機1
7のいずれかに強制的に切替えることができ、点灯部3
1にその状態を示すように点灯表示したものである。こ
れにより、電動湯水混合弁4および三方切替弁21の切
替えを遠隔操作できるようにしている。
The amount E of saved heat is Eout-Ein-Ee, which is displayed on the display unit 28 of the remote controller 29 shown in FIG. Perform by setting the temperature. The operation changeover switch 27 automatically switches between the electric hot water mixing valve 4 and the three-way switching valve 21 as described above.
7 can be forcibly switched to any one of
1 is lit to indicate the state. Thereby, the switching of the electric hot and cold water mixing valve 4 and the three-way switching valve 21 can be remotely controlled.

【0019】[0019]

【発明の効果】本発明は、以上に述べてきたような構成
により、節約熱量を表示し、太陽エネルギーによる節約
がどの程度あるのか可視化することにより、補助熱源機
17を不必要に稼動することが抑制でき、省エネルギー
効果の高い太陽熱給湯機とすることができる。
According to the present invention, the auxiliary heat source unit 17 can be operated unnecessarily by displaying the amount of heat saved and visualizing how much the solar energy is saved by the structure as described above. Can be suppressed and a solar water heater with high energy saving effect can be obtained.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.

【図2】本発明の他の実施例を示すブロック図である。FIG. 2 is a block diagram showing another embodiment of the present invention.

【図3】本発明の一実施例に用いたリモコンを示す上面
図である。
FIG. 3 is a top view showing a remote controller used in one embodiment of the present invention.

【図4】本発明の一実施例に用いた電動湯水混合弁を示
す概略断面図である。
FIG. 4 is a schematic sectional view showing an electric hot and cold water mixing valve used in one embodiment of the present invention.

【図5】従来例を示すブロック図である。FIG. 5 is a block diagram showing a conventional example.

【図6】他の従来例を示すブロック図である。FIG. 6 is a block diagram showing another conventional example.

【図7】従来例に用いていた表示器を示す上面図であ
る。
FIG. 7 is a top view showing a display used in a conventional example.

【符号の説明】[Explanation of symbols]

1.太陽熱集熱器 2.本体 3.コントローラ 4.電動湯水混合
弁 5.補助熱源用電動湯水混合弁 6.注湯経路 7.入水量検出手段 8.補助熱源接続
口 9.貯湯タンク 10.循環通路 11.熱交換器 12.循環ポンプ 13.給水接続口 14.給水通路 15.給湯通路 16.給湯接続口 17.補助熱源機 18.出水温度サ
ーミスタ 19.補助タンク 20.表示器 21.三方切替弁 22.恒温湯水混
合弁 23.入水温度サーミスタ 24.湯水混合弁
給水通路 25.出湯温度サーミスタ 26.設定温度表
示部 27.運転切替スイッチ 28.節約熱量表
示部 29.リモコン 30.上げる下げ
るスイッチ 31.点灯部 32.弁体
1. Solar heat collector 2. Main body 3. Controller 4. Electric hot and cold water mixing valve 5. 5. Electric hot water mixing valve for auxiliary heat source Pouring route 7. Water entering amount detection means 8. 8. Auxiliary heat source connection port Hot water storage tank 10. Circulation path 11. Heat exchanger 12. Circulation pump 13. Water supply connection port 14. Water supply passage 15. Hot water supply passage 16. Hot water supply connection port 17. Auxiliary heat source unit 18. Outlet temperature thermistor 19. Auxiliary tank 20. Display 21. Three-way switching valve 22. Constant temperature hot water mixing valve 23. Inlet water temperature thermistor 24. Hot water mixing valve water supply passage 25. Hot water temperature thermistor 26. Set temperature display section 27. Operation switch 28. Saved heat amount display section 29. Remote control 30. Switch to raise / lower Lighting section 32. Valve body

フロントページの続き (72)発明者 市根井 智 茨城県下館市大字下江連1250番地 日立化 成工業株式会社結城事業所内Continuing on the front page (72) Inventor Satoshi Ichine 1250 Shimoeren, Shimodate-shi, Ibaraki Pref.Hitachi Chemical Industry Co., Ltd.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】太陽熱集熱器と本体からなり、前記太陽熱
集熱器と本体は、熱媒体を循環させるための二本の循環
通路で連結され、前記本体内部には熱交換器を備えた貯
湯タンクを設け、外部に給湯する太陽熱給湯機におい
て、貯湯タンクに流入する水の流入熱エネルギー検出手
段と、貯湯タンクから流出する水の流出熱エネルギー検
出手段とを備え、流入熱エネルギー検出手段と流出熱エ
ネルギー検出手段との差から、太陽熱集熱器での集熱量
と各部位での熱損失の和を演算し、演算結果を表示する
節約熱量表示手段を設けた太陽熱給湯機。
1. A solar heat collector and a main body, wherein the solar heat collector and the main body are connected by two circulation passages for circulating a heat medium, and a heat exchanger is provided inside the main body. A solar water heater for providing a hot water storage tank and supplying hot water to the outside, comprising: an inflow thermal energy detecting means for water flowing into the hot water storage tank; and a thermal energy detection means for outflow of water flowing out of the hot water storage tank. A solar water heater provided with a conserved heat amount display means for calculating a sum of a heat collection amount in a solar heat collector and a heat loss in each part from a difference from an outflow heat energy detection means and displaying a calculation result.
【請求項2】流入熱エネルギー検出手段が、貯湯タンク
への流入する水の温度を検出する入水温検出手段と、貯
湯タンクへ流入する水の水量を検出する入水量検出手段
と、入水温検出手段と入水量検出手段の出力を演算する
流入熱エネルギー演算部とからなり、流出熱エネルギー
検出手段が、貯湯タンクから流出する水の温度を検出す
る出水温検出手段と、貯湯タンクから流出する水の水量
を検出する出水量検出手段と、出水温検出手段と出水量
検出手段の出力を演算する流出熱エネルギー演算部から
なる請求項1に記載の太陽熱給湯機。
2. An inflow thermal energy detecting means for detecting a temperature of water flowing into the hot water storage tank, an incoming water quantity detecting means for detecting an amount of water flowing into the hot water storage tank, and an incoming water temperature detection. Means and an inflow heat energy calculation unit for calculating the output of the water input amount detection means, wherein the outflow heat energy detection means detects the temperature of the water flowing out of the hot water storage tank, and the water flowing out of the hot water storage tank. The solar water heater according to claim 1, comprising: a water discharge amount detecting means for detecting a water amount of the water; and an outflow heat energy calculating section for calculating outputs of the water discharge temperature detecting means and the water discharge amount detecting means.
【請求項3】太陽熱集熱器と本体からなり、前記太陽熱
集熱器と本体は、熱媒体を循環させるための二本の循環
通路で連結され、前記本体内部には熱交換器を備えた貯
湯タンクを設け、外部に給湯する太陽熱給湯機におい
て、貯湯タンクに流入する水の流入熱エネルギー検出手
段と、貯湯タンクから流出する湯の流出熱エネルギー検
出手段と、機器を構成する電気部品の消費電力量を演算
する消費電力演算手段を備え、流入熱エネルギー検出手
段と流出する湯の流出熱エネルギー検出手段との差か
ら、太陽熱集熱器での集熱量と各部位での熱損失の和を
演算し、更に消費電力演算手段の演算結果を減じたエネ
ルギー量を表示する節約熱量表示手段を設けた太陽熱給
湯機。
3. A solar heat collector and a main body, wherein the solar heat collector and the main body are connected by two circulation passages for circulating a heat medium, and a heat exchanger is provided inside the main body. In a solar water heater that has a hot water storage tank and supplies hot water to the outside, a means for detecting inflow thermal energy of water flowing into the hot water storage tank, a means for detecting thermal energy outflow of hot water flowing out of the hot water storage tank, and consumption of electric components constituting devices Power consumption calculating means for calculating the amount of electric power, from the difference between the inflow heat energy detection means and the outflow heat energy detection means of the hot water flowing out, the sum of the heat collection amount in the solar heat collector and the heat loss in each part. A solar water heater provided with a saved heat amount display means for calculating and further displaying an energy amount obtained by reducing the calculation result of the power consumption calculation means.
【請求項4】消費電力演算手段が、機器を構成する電気
部品の稼動時間から消費電力量を演算する手段である請
求項3に記載の太陽熱給湯機。
4. The solar water heater according to claim 3, wherein the power consumption calculating means is a means for calculating a power consumption amount from an operation time of an electric component constituting the device.
JP2000339974A 2000-11-08 2000-11-08 Solar water heater Pending JP2002147870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000339974A JP2002147870A (en) 2000-11-08 2000-11-08 Solar water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000339974A JP2002147870A (en) 2000-11-08 2000-11-08 Solar water heater

Publications (1)

Publication Number Publication Date
JP2002147870A true JP2002147870A (en) 2002-05-22

Family

ID=18814959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000339974A Pending JP2002147870A (en) 2000-11-08 2000-11-08 Solar water heater

Country Status (1)

Country Link
JP (1) JP2002147870A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010107087A (en) * 2008-10-29 2010-05-13 Yazaki Corp Piping unit and solar hot water supply system
JP2010255881A (en) * 2009-04-22 2010-11-11 Yazaki Corp Solar hot water supply system and method of calculating cutdown gas usage volume
JP2011089756A (en) * 2009-05-19 2011-05-06 Chofu Seisakusho Co Ltd Solar heat water heating system and method for controlling the same
JP2011149662A (en) * 2010-01-25 2011-08-04 Rinnai Corp Storage type hot water supply system utilizing solar heat
JP2011169515A (en) * 2010-02-18 2011-09-01 Gastar Corp Solar heat use heat source device
JP2011208895A (en) * 2010-03-30 2011-10-20 Noritz Corp Storage type hot water supply system
JP2014149093A (en) * 2013-01-30 2014-08-21 Noritz Corp Water heater
CN107965908A (en) * 2017-12-26 2018-04-27 姜宁 Fully-automatic intelligent controls constant-temperature hot water supply system and its control method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010107087A (en) * 2008-10-29 2010-05-13 Yazaki Corp Piping unit and solar hot water supply system
JP2010255881A (en) * 2009-04-22 2010-11-11 Yazaki Corp Solar hot water supply system and method of calculating cutdown gas usage volume
JP2011089756A (en) * 2009-05-19 2011-05-06 Chofu Seisakusho Co Ltd Solar heat water heating system and method for controlling the same
JP2011149662A (en) * 2010-01-25 2011-08-04 Rinnai Corp Storage type hot water supply system utilizing solar heat
JP2011169515A (en) * 2010-02-18 2011-09-01 Gastar Corp Solar heat use heat source device
JP2011208895A (en) * 2010-03-30 2011-10-20 Noritz Corp Storage type hot water supply system
JP2014149093A (en) * 2013-01-30 2014-08-21 Noritz Corp Water heater
CN107965908A (en) * 2017-12-26 2018-04-27 姜宁 Fully-automatic intelligent controls constant-temperature hot water supply system and its control method

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