JPS5921945A - Solar heat collecting apparatus - Google Patents
Solar heat collecting apparatusInfo
- Publication number
- JPS5921945A JPS5921945A JP57132680A JP13268082A JPS5921945A JP S5921945 A JPS5921945 A JP S5921945A JP 57132680 A JP57132680 A JP 57132680A JP 13268082 A JP13268082 A JP 13268082A JP S5921945 A JPS5921945 A JP S5921945A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- pipe
- tank
- antifreeze
- return pipe
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 230000000630 rising effect Effects 0.000 claims abstract description 7
- 230000002528 anti-freeze Effects 0.000 claims description 33
- 238000005338 heat storage Methods 0.000 claims description 16
- 238000009835 boiling Methods 0.000 abstract description 12
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 241001502129 Mullus Species 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1042—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses solar energy
Abstract
Description
【発明の詳細な説明】
（イ）＃業上の利用分野
本発明は不凍液を集熱器と蓄熱槽に装設された熱交換器
との間で循環させ、太陽熱を集熱器から熱交換器に移送
して蓄熱槽に蓄熱させるようにした太陽熱集熱装置に関
する。Detailed Description of the Invention (a) #Field of Industrial Application The present invention circulates antifreeze between a heat collector and a heat exchanger installed in a heat storage tank, and heat exchanges solar heat from the heat collector. The present invention relates to a solar heat collection device that transfers heat to a container and stores it in a heat storage tank.
仲）背景技術
従来、此種太陽熱集熱装置では第１図に示すように集熱
ポンプｆａ）の運転中に集熱器（ｂ）の集熱量に欠
対し、ＭＰ器（Ｃ）の負荷が小さくなると、循環回路（
ｄ）の不凍液が沸騰して危険な状態になるとともに、集
熱ポンプｆａｔがガスかみを起こす虞れがあるため、例
えば集熱戻り管（ｅ）の不凍液温度を温度検知器げ）で
検出し、７．ｎ度検知器（ｆ）が不凍液の沸騰危険温度
を感知したときに沸騰防止排水弁（ｇｌを開いて蓄熱槽
（１１）の高温水の一部を捨゛Ｃ１新たな低温水を給水
管（ｉ）から蓄熱槽（１１）に供給することにより、不
凍液を強制冷却させ、不凍液の沸騰防止を行なっていた
。BACKGROUND TECHNOLOGY Conventionally, in this type of solar heat collector, as shown in Fig. 1, the amount of heat collected by the collector (b) is insufficient during operation of the heat collector pump (fa), and the load on the MP device (C) is increased. When it gets smaller, the circulation circuit (
There is a risk that the antifreeze in step d) will boil and become dangerous, and the heat collecting pump fat may become gas-filled. ,7. When the n degree detector (f) detects the dangerous boiling temperature of the antifreeze liquid, open the boiling prevention drain valve (GL) and discard some of the high temperature water in the heat storage tank (11). By supplying the antifreeze from i) to the heat storage tank (11), the antifreeze was forcibly cooled and the boiling of the antifreeze was prevented.
ところが、上述した方式では？Ｊｌ’、騰防止のために
ｆ角太陽熱を利用して加熱された高温水を太Ｍ、に廃棄
しなければならず、省エネルギー上、及び省資源上好ま
しいものでながった。又、停電などにより集熱ポンプが
運転できない場合には不凍液の強制冷却が行なえなくな
るため、不凍液が集熱器内で沸騰して過熱され、劣化す
るとともに、次の集熱運転時に蒸発した不凍液が循環回
路（ｅ）内を循環して蒸気ハンマー現象により配管が異
常振動したり、集熱ポンプ（ａ）を破損させる欠点があ
った。However, what about the method described above? In order to prevent the heat from rising, high-temperature water heated using f-angle solar heat must be disposed of in a large tank, which is preferable in terms of energy and resource conservation. In addition, if the heat collection pump cannot operate due to a power outage, etc., forced cooling of the antifreeze fluid cannot be performed, so the antifreeze fluid boils in the heat collector, becomes overheated, and deteriorates, and the evaporated antifreeze fluid is removed during the next heat collection operation. There was a drawback that the piping was caused to abnormally vibrate due to the steam hammer phenomenon due to circulation in the circulation circuit (e), and the heat collection pump (a) was damaged.
（ハ）発明の目的
本発明は上述した従来技術の欠点を解消すべくなされた
ものであり、蓄熱槽に貯溜された熱媒体を排出させたり
、集熱ポンプにより不凍液を強制循環させ少ことなく循
環回路の不凍液の沸騰や劣化を防止できるようにするこ
とを目的とする。(C) Purpose of the Invention The present invention has been made to solve the above-mentioned drawbacks of the prior art. The purpose is to prevent boiling and deterioration of antifreeze in the circulation circuit.
（ホ）発明の要点
本発明の特徴とするところは蓄熱槽に装設された熱交換
器の出口部と熱交換器の入口部、及び集熱器の出口部と
熱交換器の入口部を夫々集熱往管、集熱戻り管で接続し
、不凍液を集熱ポンプで強制循環させる循環回路を有し
、集熱戻り管の途中をに於いて、集熱器の出口部とｙｇ
張タンク接続点との間の集熱戻り管に口字状萩啄居配管
部を設け、該鳴活配管部の立上げ部の」二端と膨張タン
クの液面より低い部分とを開閉弁及び放熱器を介設した
連結管にて連結し、循環回路の不凍液温度が所定値以上
のとき、集熱ポンプを停止させるとともに開閉弁を開放
させるように構成したことにあり、循環回路の不凍液温
度が所定値以上のとき、開閉弁を開放させ、集熱ポンプ
を停正さぜろことにょで大気と熱交換して冷却された後
、膨張タンク、接続管を経て集熱戻り管に戻り、循環回
路を循環する自然循環を行なうため、沸騰及び過熱によ
る劣化が防止される。(E) Main Points of the Invention The characteristics of the present invention are that the outlet part of the heat exchanger installed in the heat storage tank and the inlet part of the heat exchanger, and the outlet part of the heat collector and the inlet part of the heat exchanger are They are connected by a heat collection outgoing pipe and a heat collection return pipe, and have a circulation circuit in which antifreeze is forced to circulate by a heat collection pump.
A square-shaped Hagi-takukai piping section is provided in the heat collection return pipe between the connection point of the expansion tank, and an on-off valve is installed between the two ends of the rising section of the meikatsu piping section and the section lower than the liquid level of the expansion tank. and are connected by a connecting pipe with a radiator interposed therebetween, and when the antifreeze temperature in the circulation circuit is above a predetermined value, the heat collection pump is stopped and the shut-off valve is opened. When the temperature is above a predetermined value, the on-off valve is opened and the heat collecting pump is stopped. After being cooled by exchanging heat with the atmosphere, the heat returns to the heat collecting return pipe via the expansion tank and connecting pipe. , natural circulation through the circulation circuit prevents deterioration due to boiling and overheating.
（へ）発明の実施態様
開閉弁を断電時開路型のノーマルオープン電磁弁とする
ことにより、上述した自然循環は停電時に集熱器内の不
凍液が過熱された場合にも行なゎれろため、信頼性の向
上が図れる。(f) Embodiments of the invention By using a normally open solenoid valve that opens when the power is cut off, the above-mentioned natural circulation can be carried out even if the antifreeze in the heat collector becomes overheated during a power outage. , reliability can be improved.
（ト）発明の実施例 以下、本発明を図面に示す一実施例について説明する。(g) Examples of the invention An embodiment of the present invention shown in the drawings will be described below.
第２図に於いて、（１）は蓄熱槽（２）の下部に装設さ
れた熱交換器、（３）は集熱器であり、熱交換器（１）
の出口部（１ｂ）と集熱器（３）の入口部（３ａ）、及
び集熱器（３）の出口部（３ｂ）と熱交換器（１）の入
口部（１ａ）を夫々集熱往管（４）、集熱戻り管（５）
で接続して不凍液の循環回路（６）を形成してあり、集
熱往管（４）の途中には不凍液の強制循環用の集熱ポン
プ（７）を設けである。（８）は循環回路（６）よりも
高所に配設される膨張タンクであり、その底部を接続管
（９）にて集熱戻り管（５）の途中に接続しである。（
ｔｏは集熱器（３）の出口部（３ｂ）と膨張タンク（８
）の接続点αυとの間の集熱戻り管（５）に設けた口字
状；鳥居配管部である。（６）はＷ配管部（１１の立上
げ部（１０ａ）の上端α］と膨張タンク（８）の液面よ
り低い下部人口０４）とを連通させる連結管であり、開
閉弁としての断電時開散型のノーマルオープン電磁弁α
Ｇと空冷放熱器θ（）とが介設されている。θカ及びＱ
樽は夫々、蓄熱槽（２）の下部、頂部に連通させた給水
管及び給湯管である。In Figure 2, (1) is a heat exchanger installed at the bottom of the heat storage tank (2), (3) is a heat collector, and heat exchanger (1) is installed at the bottom of the heat storage tank (2).
The outlet part (1b) of the heat collector (3) and the inlet part (3a) of the heat collector (3), and the outlet part (3b) of the heat collector (3) and the inlet part (1a) of the heat exchanger (1), respectively. Outgoing pipe (4), heat collection return pipe (5)
are connected to form an antifreeze circulation circuit (6), and a heat collection pump (7) for forced circulation of the antifreeze is provided in the middle of the heat collection outgoing pipe (4). (8) is an expansion tank disposed higher than the circulation circuit (6), and its bottom is connected to the middle of the heat collecting return pipe (5) through a connecting pipe (9). (
to is the outlet part (3b) of the heat collector (3) and the expansion tank (8
) and the connection point αυ; (6) is a connecting pipe that communicates the W piping section (the upper end α of the rising part (10a) of 11) with the lower part 04 that is lower than the liquid level of the expansion tank (8), and is used as a shutoff valve. Time-dispersion type normally open solenoid valve α
G and an air-cooled heat radiator θ() are interposed. θ force and Q
The barrels are a water supply pipe and a hot water supply pipe connected to the bottom and top of the heat storage tank (2), respectively.
ａｔＳは集熱器（３）近傍に配設された日射量検知器（
１）と、蓄熱槽（２）の下部に設けられた温水温度検知
器（２１）からの信号を常時入力して集熱り可否判別を
行ない、集熱ポンプ（７）を発停さぜるとともに、集熱
ポンプ（７）の運転中に集熱戻り管（５）に取着されろ
不凍液温度検知器（イ）からの信号を入力して不凍液の
温度が所定値（沸騰危険温度）以上のとき、電磁弁θ０
を開放させ、集熱ポンプ（７）を停止させろようにした
制御装置である。atS is a solar radiation detector (
1) and the signal from the hot water temperature detector (21) installed at the bottom of the heat storage tank (2) are constantly input to determine whether or not heat can be collected, and start/stop the heat collection pump (7). At the same time, when the heat collection pump (7) is operating, a signal from the antifreeze temperature sensor (a) attached to the heat collection return pipe (5) is input to indicate that the temperature of the antifreeze is higher than a predetermined value (boiling danger temperature). When , solenoid valve θ0
This is a control device that opens the heat collecting pump (7) and stops the heat collecting pump (7).
次に上述した実施例装置の動作を説明する。日射量が蓄
熱槽（２）の下部温水温度に対して十分大きくなり、集
熱効果が期待できろようになると、制御装置０！Ｉは集
熱ポンプ（７）を運転させ、電磁弁（ｌｒ９を閉止させ
る。このとき、不凍液は集熱器（３）−焦熱戻り管（５
）−熱交換器（１）−集熱往管（４）−集熱器（３）の
順に強制循環され、太陽熱を集熱器（３）から熱交換器
（１）に移送して蓄熱槽（２）内の水を加熱する。Next, the operation of the above-described embodiment device will be explained. When the amount of solar radiation becomes sufficiently large compared to the temperature of the hot water in the lower part of the heat storage tank (2) and a heat collection effect can be expected, the control device 0! I operates the heat collection pump (7) and closes the solenoid valve (lr9. At this time, the antifreeze is transferred from the heat collector (3) to the scorching return pipe (5).
) - Heat exchanger (1) - Heat collection outgoing pipe (4) - Heat collector (3) is forcedly circulated in this order, and solar heat is transferred from the heat collector (3) to the heat exchanger (1) and then stored in the heat storage tank. (2) Heat the water inside.
この集熱運転により蓄熱槽（２）内の温水温度が高（な
り、熱交換器（１）の負荷が小さくなると、循環回路（
６）の不凍液温度が徐々に」二昇ずろ。そして、不凍液
温度検知器（５）が一定値以上を感知すると、制御装置
０！）は電磁弁（１υを開放させるとともに集熱ポンプ
（７）を停止させろ。このため、集熱器（３）で加熱さ
れた不凍液は出口部（３ｂ）から集熱戻り管（５）・に
入ったのち、需要配管部θＯの立上がり部（１０ａ）を
上昇して連結管θカに入り、空冷放熱器◇０で大気と熱
交換して冷却されろ。然る後、膨張タンク（８）から接
続管（９）を通って集熱戻り管（５）に戻り、熱交換器
（１）、集熱往管（４）を通って集熱器（３）の入口部
（３ａ）に至る自然循環を行プよ５゜尚、集熱ポンプ（
７）の停止中は集熱戻り管（５）に需要配管部（ｉＦ３
があるため、書等配管部０Ｑの立上がり部（１０ａ）に
入った不凍液は通常の循環径路で流れにくり、その殆ど
がそのまま上昇して連結管（１のに入る。このようにし
て不凍液の自然循環が行なわれることにより、不凍液の
沸騰や過熱による劣化が防止される。そして不凍液温度
検知器（イ）が沸騰危険温度より一定値以」二低い温度
を感知づ−ろと、制御装置０唱ま再び集熱ポンプ（７）
を運転させ、電磁弁θＱを閉止させて通常の集熱運転に
戻す。集熱運転は蓄熱槽（２）内の下部温水温度に比べ
て日射量が不足し、集熱効果が期待できなくなると、終
了する。Due to this heat collection operation, the temperature of the hot water in the heat storage tank (2) becomes high (and the load on the heat exchanger (1) becomes small), and the circulation circuit (
6) Antifreeze temperature gradually rises. Then, when the antifreeze temperature sensor (5) detects a certain value or more, the control device 0! ) should open the solenoid valve (1υ) and stop the heat collection pump (7). Therefore, the antifreeze heated in the heat collector (3) will flow from the outlet (3b) to the heat collection return pipe (5). After entering, it ascends the rising part (10a) of the demand piping section θO, enters the connecting pipe θ, and is cooled by exchanging heat with the atmosphere in the air-cooled radiator ◇0.After that, the expansion tank (8) From there, it passes through the connecting pipe (9), returns to the heat collecting return pipe (5), passes through the heat exchanger (1), the heat collecting outgoing pipe (4), and reaches the inlet part (3a) of the heat collector (3). Let's continue the natural circulation.
7) is stopped, the demand piping section (iF3) is connected to the heat collection return pipe (5).
Therefore, the antifreeze that enters the rising part (10a) of the book piping section 0Q flows through the normal circulation path, and most of it rises as it is and enters the connecting pipe (1).In this way, the antifreeze Natural circulation prevents the antifreeze from deteriorating due to boiling or overheating.When the antifreeze temperature sensor (a) detects a temperature that is more than a certain value below the boiling danger temperature, the controller 0 The heat collecting pump sings again (7)
is operated, and the solenoid valve θQ is closed to return to normal heat collection operation. The heat collection operation ends when the amount of solar radiation is insufficient compared to the temperature of the lower hot water in the heat storage tank (2) and a heat collection effect can no longer be expected.
万一、停電等により、日中十分日射があるにも拘らず、
集熱ポンプ（７）の運転ができないとき、本実施例のも
のでは連結管（６）のノーマルオーブン電磁弁００が開
放するため、集熱器（３）で加熱された不凍液は沸騰防
止制御のときと同じ自然循環を行なう。従って、集熱器
（３）内で不凍液が沸騰したり、過熱することがない。In the unlikely event that there is a power outage, etc., even though there is sufficient sunlight during the day,
When the heat collector pump (7) cannot be operated, the normal oven solenoid valve 00 of the connecting pipe (6) is opened in this embodiment, so the antifreeze heated in the heat collector (3) is protected from boiling prevention control. Perform the same natural cycle as time. Therefore, the antifreeze does not boil or overheat within the heat collector (3).
第３図は本発明の他の一実施例を示ずものであり、第２
図のものと異なるのは會等配管部ＯＱと接キュームプレ
ーカ伺空気抜き弁（財）を設けたことである。このよう
にすると、集熱ボンダ（７）の停止に伴ない婁各配管部
（ハ）の膨張タンク（８）の液面より高い部分に空気が
入るため、不凍液による自然対流は全て連結管（６）に
流れることになる。FIG. 3 does not show another embodiment of the present invention;
The difference from the one shown in the diagram is that an air vent valve is installed in the office piping section OQ to avoid contact with the vacuum breaker. In this way, as the heat collection bonder (7) stops, air enters the portion of each piping section (c) that is higher than the liquid level of the expansion tank (8), so all the natural convection caused by the antifreeze liquid is absorbed by the connecting pipe (c). 6).
ヴ→ 発明の効果
本発明は以上説明したように、循環回路の不凍液温度が
一定値以上のとき、集熱器で加熱された不凍液を放熱器
を含む自然循環系で冷却させることができるので、従来
のように蓄熱槽に貯溜させた熱媒体を排出させたり、不
凍液を強制循環させたりすることなく、不凍液の沸騰や
過熱による劣化を防止することができ、装置の寿命が長
くなり、省エネルギー、省資源に貢献でき、停電時の沸
騰防止にも対処しやすいなど、優れた効果を奏する。V→ Effects of the Invention As explained above, the present invention has the following advantages: When the temperature of the antifreeze in the circulation circuit is above a certain value, the antifreeze heated in the heat collector can be cooled down in the natural circulation system including the radiator. It is possible to prevent deterioration of antifreeze due to boiling and overheating without discharging the heat medium stored in a heat storage tank or forcing circulation of antifreeze as in the past, extending the life of the equipment, saving energy, It has excellent effects, such as contributing to resource conservation and making it easy to prevent boiling during power outages.
第１図は従来装置の一例を示す系統図、第２図及び第３
図は本発明装置の一実施例を示す系統図である。
（１）・・・熱交換器、（２）・・・蓄熱槽、（３）・
・・集熱器、（４）・・・集熱往管、（５）・・・集熱
戻り管、（６）・・・循環回路、（７）・・・マルオー
ブン電磁弁（開閉弁）、（＋、（Ｄ・・・空冷放熱器、
０≦１・・制御装置。
第１図
１Figure 1 is a system diagram showing an example of a conventional device, Figures 2 and 3
The figure is a system diagram showing one embodiment of the device of the present invention. (1) Heat exchanger, (2) Heat storage tank, (3)
... Heat collector, (4) ... Heat collection outward pipe, (5) ... Heat collection return pipe, (6) ... Circulation circuit, (7) ... Mullet oven solenoid valve (on-off valve) ), (+, (D... air-cooled radiator,
0≦1...control device. Figure 1 1
Claims (2)
入口部、及び集熱器の出口部と熱交換器の入口部を夫々
集熱往管、集熱戻り管で接続し、不凍液を集熱ポンプで
強制循環させる循環回路を有し、集熱戻り管の途中を接
続管にて膨張タンクの底部に接続しであるものに於いて
、集熱器の出口部と膨張タンク接続点との間の集熱戻り
管にロ字状力鳴県配管部を設け、該禽洛配管部の立上げ
部の」二端と膨張タンクの液面より低い部分とを開閉弁
及び放熱器を介設した連結管にて連結し、循環回路の不
凍液温度が所定値以上のとき、集熱ポンプを停止させる
とともに開閉弁を開放させるように構成しであることを
特徴とする太陽熱集熱装置。(1) The outlet of the heat exchanger installed in the heat storage tank and the inlet of the heat collector, and the outlet of the heat collector and the inlet of the heat exchanger are connected to a heat collection outgoing pipe and a heat collecting return pipe, respectively. In the case where the heat collecting return pipe is connected to the bottom of the expansion tank with a connecting pipe, and the heat collecting return pipe is connected to the bottom of the expansion tank through a connecting pipe, A square-shaped L-shaped piping section is installed in the heat collecting return pipe between the connection point of the expansion tank, and an on-off valve is installed between the two ends of the rising section of the L-shaped piping section and the section lower than the liquid level of the expansion tank. and a solar heat generating system connected by a connecting pipe with a radiator interposed therebetween, and configured to stop the heat collecting pump and open the on-off valve when the temperature of the antifreeze in the circulation circuit exceeds a predetermined value. Heat collection device.
であることをＩＰｊ徴とづ−る特許請求の範囲第１項記
載の太陽熱集熱装置。(2) The solar heat collector according to claim 1, wherein the on-off valve is a normally open solenoid valve that opens when the power is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57132680A JPS5921945A (en) | 1982-07-28 | 1982-07-28 | Solar heat collecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57132680A JPS5921945A (en) | 1982-07-28 | 1982-07-28 | Solar heat collecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5921945A true JPS5921945A (en) | 1984-02-04 |
Family
ID=15086996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57132680A Pending JPS5921945A (en) | 1982-07-28 | 1982-07-28 | Solar heat collecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5921945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013152043A (en) * | 2012-01-25 | 2013-08-08 | Tokyo Gas Co Ltd | Solar heat utilization system and boiling prevention control method of heating medium |
-
1982
- 1982-07-28 JP JP57132680A patent/JPS5921945A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013152043A (en) * | 2012-01-25 | 2013-08-08 | Tokyo Gas Co Ltd | Solar heat utilization system and boiling prevention control method of heating medium |
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