JPS6350626B2 - - Google Patents
Info
- Publication number
- JPS6350626B2 JPS6350626B2 JP56076904A JP7690481A JPS6350626B2 JP S6350626 B2 JPS6350626 B2 JP S6350626B2 JP 56076904 A JP56076904 A JP 56076904A JP 7690481 A JP7690481 A JP 7690481A JP S6350626 B2 JPS6350626 B2 JP S6350626B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- pipe
- liquid
- storage tank
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 29
- 238000005338 heat storage Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 230000002528 anti-freeze Effects 0.000 description 14
- 239000012267 brine Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/50—Preventing overheating or overpressure
-
- 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
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
【発明の詳細な説明】
本発明は集熱器と熱交換器とを集熱ポンプの連
設された往管と戻り管とで連設した熱媒体の循環
回路と、熱交換器が挿設され、熱交換器にて加熱
される被加熱液を貯溜する蓄熱槽とを備えた太陽
熱集熱装置に関するものであり、その目的とする
ところは熱媒体が過集熱状態となつて温度上昇
し、沸騰して蒸発することにより不足するのを防
止することにあり、熱媒体温度が一定値以上の時
には蓄熱槽の被加熱液の一部を排出して新たな被
加熱液を補給し、集熱ポンプを運転することによ
り、熱媒体温度を低下させることを特徴とするも
のである。[Detailed Description of the Invention] The present invention provides a heat medium circulation circuit in which a heat collector and a heat exchanger are connected through an outgoing pipe and a return pipe in which a heat collecting pump is connected, and a heat exchanger is inserted into the heat medium circulation circuit. This invention relates to a solar heat collection device equipped with a heat storage tank that stores a liquid to be heated that is heated by a heat exchanger. The purpose is to prevent shortages due to boiling and evaporation, and when the heat medium temperature is above a certain value, part of the heated liquid in the heat storage tank is drained and new heated liquid is replenished and collected. The feature is that the temperature of the heat medium is lowered by operating the heat pump.
以下、本発明の一実施例を図面に基づいて説明
する。第１図に於いて、１は集熱器、２は熱交換
器であり、集熱器１と熱交換器２とはストレーナ
３、集熱ポンプ４及び逆止弁５の介設された往管
６と戻り管７とで連設されて熱媒体としての不凍
液の循環回路８を形成している。９は熱交換器２
が下部に挿設され、熱交換器２にて加熱される被
加熱液としての水を貯溜する蓄熱槽であり、熱交
換器２の下方には減圧逆止弁１０の介設された給
液管としての給水管１１が連通され、熱交換器２
の上方には、電磁弁等の制御弁１２の介設された
排液管としての排水管１３が連通されている。１
４及び１５は装置内の最高所となる戻り管７に接
続された膨張管及び補給タンクであり、膨張管１
４の他端は補給タンク１５の上部に連通してい
る。又、１６は予め定めた一定濃度に管理された
不凍液を貯溜するブラインタンクであり、液送ポ
ンプ１７の介設された液送管１８を介して補給タ
ンク１５の上部に連通している。 Hereinafter, one embodiment of the present invention will be described based on the drawings. In FIG. 1, 1 is a heat collector, and 2 is a heat exchanger. The pipe 6 and the return pipe 7 are connected to form a circulation circuit 8 for antifreeze as a heat medium. 9 is heat exchanger 2
is a heat storage tank that is inserted in the lower part and stores water as a heated liquid to be heated by the heat exchanger 2, and a pressure reducing check valve 10 is installed below the heat exchanger 2. A water supply pipe 11 as a pipe is connected to the heat exchanger 2.
A drain pipe 13 serving as a drain pipe in which a control valve 12 such as a solenoid valve is interposed is connected above the drain pipe. 1
4 and 15 are an expansion pipe and a replenishment tank connected to the return pipe 7 which is the highest point in the device, and the expansion pipe 1
The other end of 4 communicates with the upper part of the supply tank 15. A brine tank 16 stores antifreeze controlled at a predetermined concentration, and communicates with the upper part of the supply tank 15 via a liquid feed pipe 18 in which a liquid feed pump 17 is installed.
１９は制御装置であり、集熱器１近傍の日射量
と外気温とを検出する集熱器センサ２０と、蓄熱
槽９内の熱交換器２と排水管１３の間の水温を検
出する蓄熱槽センサ２１と、戻り管７の不凍液温
度を検出する戻り管センサ２２と、補給タンク１
５内に電極Ｈ，L1，L2，Ｃが挿入された液位検
知器２３とを備え、集熱ポンプ４及び液送ポンプ
１７の発停と、制御弁１２の開弁と、警報器２
４，２５の作動とを制御する。すなわち、制御装
置１９は集熱器センサ２０にて検出された日射量
及び外気温と蓄熱槽センサ２１にて検出された水
温とを入力し、外気温及び蓄熱槽９内の水温に対
して十分な日射量があるか否かを第２図に示す特
性線に従つて判別し、集熱ポンプ４を発停する。
例えば外気温が０℃の時、口の実線で示すON特
性線の上の領域に日射量と蓄熱槽内水温があると
集熱ポンプ４を運転させ、口の鎖線で示すOFF
特性線の下の領域に入ると集熱ポンプ４を停止さ
せる。又、制御装置１９は戻り管センサ２２にて
検出した不凍液温度が一定値（例えば90℃）以上
になると、制御弁１２を開放させるとともに集熱
ポンプ４を強制的に運転させ、一定値（例えば８
℃）以下になると制御弁１２を閉止させるととも
に集熱ポンプ４の強制運転を解除する。そして、
制御弁１２を開放し、集熱ポンプ４を強制運転し
ているにも拘らず、戻り管センサ２２の検出温度
が一定値以下に下がらない場合には蓄熱槽センサ
２１の検出温度が一定値（例えば60℃）以下とな
り、この状態が一定時間継続した段階で響報器２
４を作動させる。更に又、制御装置１９は液位検
知器２３の電極間信号を監視し、Ｃ−L2間信号
がなくなると液送ポンプ１７を運転させ、Ｃ−Ｈ
間信号が入ると液送ポンプ１７を停止させ、Ｃ−
L1間信号がなくなると警報器２５を作動させる。 Reference numeral 19 denotes a control device including a heat collector sensor 20 that detects the solar radiation amount and outside temperature near the heat collector 1, and a heat storage sensor 20 that detects the water temperature between the heat exchanger 2 and the drain pipe 13 in the heat storage tank 9. A tank sensor 21 , a return pipe sensor 22 that detects the antifreeze temperature in the return pipe 7 , and a replenishment tank 1
It is equipped with a liquid level detector 23 in which electrodes H, L 1 , L 2 , and C are inserted. 2
4 and 25. That is, the control device 19 inputs the amount of solar radiation and the outside temperature detected by the heat collector sensor 20 and the water temperature detected by the heat storage tank sensor 21, and makes sure that the temperature is sufficient for the outside temperature and the water temperature in the heat storage tank 9. It is determined whether there is a sufficient amount of solar radiation according to the characteristic line shown in FIG. 2, and the heat collecting pump 4 is started or stopped.
For example, when the outside temperature is 0°C, if the amount of solar radiation and the water temperature in the heat storage tank are in the area above the ON characteristic line shown by the solid line at the top, the heat collection pump 4 is operated and the OFF line shown by the chain line at the top is turned off.
When entering the region below the characteristic line, the heat collection pump 4 is stopped. Further, when the antifreeze temperature detected by the return pipe sensor 22 exceeds a certain value (for example, 90°C), the control device 19 opens the control valve 12 and forcibly operates the heat collection pump 4 to maintain the temperature at a certain value (for example, 90°C). 8
℃), the control valve 12 is closed and forced operation of the heat collecting pump 4 is canceled. and,
If the temperature detected by the return pipe sensor 22 does not fall below a certain value even though the control valve 12 is opened and the heat collecting pump 4 is forced into operation, the temperature detected by the heat storage tank sensor 21 will be at a certain value ( For example, when the temperature drops below 60℃ and this condition continues for a certain period of time, the sound alarm 2
Activate 4. Furthermore, the control device 19 monitors the signal between the electrodes of the liquid level detector 23, and when the signal between C- L2 disappears, it operates the liquid feed pump 17, and
When the signal is input, the liquid feed pump 17 is stopped and the C-
When the signal disappears for L 1 , the alarm 25 is activated.
而して、本実施例に依れば、日射のある昼間に
は集熱器センサ２０と蓄熱槽センサ２１の検出値
に応じて制御装置１９が集熱の可否を判別し、集
熱ポンプ４を発停する。そして、集熱ポンプ４の
運転により不凍液が循環回路８内を図示方向に循
環し、集熱器１にて太陽熱を利用して加熱された
不凍液が熱交換器２へ移送され、ここで蓄熱槽９
内の水と間接熱交換したのち集熱器１に戻り、こ
れを繰返すようになり、蓄熱槽９には温水が貯湯
される。 According to this embodiment, during the daytime when there is sunlight, the control device 19 determines whether or not heat can be collected according to the detected values of the heat collector sensor 20 and the heat storage tank sensor 21, and the heat collecting pump 4 Start and stop. The antifreeze fluid is circulated in the direction shown in the circulation circuit 8 by the operation of the heat collection pump 4, and the antifreeze fluid heated using solar heat in the heat collector 1 is transferred to the heat exchanger 2, where it is transferred to the heat storage tank. 9
After indirect heat exchange with the water inside, it returns to the heat collector 1, and this process is repeated, and hot water is stored in the heat storage tank 9.
日射が強く、過集熱状態になると蓄熱槽９内の
水温が高くなるため、循環回路８内の不凍液が熱
交換器２にて冷却されなくなり、沸騰して蒸発
し、損失するとともに極めて危険な状態になる。
そこで、本装置にあつては戻り管センサ２２の検
出温度が一定値以上になると、制御装置１９が制
御弁１２を開放するとともに集熱ポンプ４を強制
運転させる。このため、蓄熱槽９内の温水の一部
が排水管１３から制御弁１２を介して排出される
とともに、給水管１１から減圧逆止弁１０を介し
て市水が蓄熱槽９に供給され、循環回路８内の不
凍液は熱交換器２にて冷却され、沸騰が防止され
る。そして、戻り管センサ２２の検出温度が一定
値以下になると、制御装置１９は制御弁１２を閉
止し、集熱ポンプ４の強制運転を解く。勿論、集
熱が可能な状態では集熱ポンプ４は継続して運転
する。万一、制御弁１２を開放させ、集熱ポンプ
４を強制運転させているにも拘らず、戻り管セン
サ２２の検出温度が一定値以下に下がらない場合
はストレーナ３の目詰まり、集熱ポンプ４の故
障、熱交換器２の短絡故障などの異常が考えられ
るため、蓄熱槽センサ２１の検出温度が一定値以
下に下がり、この状態が一定時間継続した段階で
制御装置１９が警報器２４を作動させ、装置の異
常を報知する。 When sunlight is strong and heat is collected excessively, the temperature of the water in the heat storage tank 9 increases, so the antifreeze in the circulation circuit 8 is no longer cooled by the heat exchanger 2, boils and evaporates, and is lost and extremely dangerous. become a state.
Therefore, in this device, when the temperature detected by the return pipe sensor 22 exceeds a certain value, the control device 19 opens the control valve 12 and forces the heat collecting pump 4 into operation. Therefore, part of the hot water in the heat storage tank 9 is discharged from the drain pipe 13 via the control valve 12, and city water is supplied to the heat storage tank 9 from the water supply pipe 11 via the pressure reducing check valve 10. The antifreeze in the circulation circuit 8 is cooled by the heat exchanger 2 and prevented from boiling. Then, when the temperature detected by the return pipe sensor 22 becomes below a certain value, the control device 19 closes the control valve 12 and releases the forced operation of the heat collecting pump 4. Of course, the heat collection pump 4 continues to operate in a state where heat collection is possible. In the unlikely event that the temperature detected by the return pipe sensor 22 does not fall below a certain value even though the control valve 12 is opened and the heat collecting pump 4 is forced into operation, the strainer 3 may be clogged, and the heat collecting pump 4, or a short-circuit failure in the heat exchanger 2, the temperature detected by the heat storage tank sensor 21 drops below a certain value, and when this state continues for a certain period of time, the control device 19 activates the alarm 24. Activate to notify of equipment abnormality.
又、補給タンク１５は膨張管１４から溢出した
不凍液を回収するとともに、自然蒸発等により不
足した分だけ不凍液を循環回路８に補給する。そ
して補給タンク１５の液位は制御装置１９による
液送ポンプ１７の発停によりL2−Ｈ間に維持さ
れており、ブラインタンク１６から供給される不
凍液は所定濃度に管理されているため、循環回路
８内の不凍液の濃度が低下して不凍液が凍結する
虞れはなく寒冷地での使用が可能である。又、ブ
ラインタンク１６が空になり、補給タンク１５の
液位がL1以下になると、制御装置１９が警報器
２５を作動させ、ブラインタンク１６が空になつ
たことを知らせる。 Further, the replenishment tank 15 collects the antifreeze overflowing from the expansion tube 14, and replenishes the circulation circuit 8 with antifreeze that is insufficient due to natural evaporation or the like. The liquid level in the replenishment tank 15 is maintained between L2 and H by turning on and off the liquid feed pump 17 by the control device 19, and the antifreeze supplied from the brine tank 16 is controlled at a predetermined concentration, so that it is circulated. There is no risk that the concentration of the antifreeze in the circuit 8 will decrease and the antifreeze will freeze, and it can be used in cold regions. Further, when the brine tank 16 becomes empty and the liquid level in the replenishment tank 15 becomes less than L1 , the control device 19 activates the alarm 25 to notify that the brine tank 16 is empty.
尚、上述の実施例において、循環回路８の熱媒
体として不凍液を用いたが、これに限定されるも
のでなく、蓄熱槽９に貯溜される被加液体も水に
限定されるものでない。又、制御装置１９の集熱
の可否判別も種々の方法が適用可能である。又、
制御弁１２は排水管１３側でなく給水管１３側に
設けても良いが、この場合排水管１３から槽９内
の水が制御弁１２閉止時に流出しないように排水
管１３に排水トラツプ（図示しない）を設ける、
排水管１３を槽９の上端に接続する等の対策が必
要である。 Although antifreeze was used as the heat medium in the circulation circuit 8 in the above-described embodiment, the present invention is not limited thereto, and the liquid to be added stored in the heat storage tank 9 is not limited to water either. Furthermore, various methods can be applied to determine whether the control device 19 can collect heat. or,
The control valve 12 may be provided on the water supply pipe 13 side instead of the drain pipe 13 side, but in this case, a drain trap (not shown) is installed in the drain pipe 13 to prevent the water in the tank 9 from flowing out from the drain pipe 13 when the control valve 12 is closed. (not)
Measures such as connecting the drain pipe 13 to the upper end of the tank 9 are required.
本発明は上述の如く、集熱器と熱交換器とを集
熱ポンプの介設された往管と戻り管とで連設した
熱媒体の循環回路と、熱交換器が挿設され、熱交
換器にて加熱される被加熱液を貯溜する蓄熱槽
と、蓄熱槽に連通した給液管及び排液管と、給液
管又は排液管に介設された制御弁と、集熱の可否
を判別して集熱ポンプを発停するとともに、戻り
管の熱媒体温度が所定値以上の時に制御弁を開放
し、且つ集熱ポンプを運転する制御装置を備えた
ものであるから、戻り管の熱媒体温度が一定値以
上となる過集熱状態では蓄熱槽の被加熱液の一部
を排出管から排出し、給液管から新たな被加熱液
を蓄熱槽に補給するようにして、循環回路の熱媒
体が熱交換器にて冷却されるように図り、熱媒体
が沸騰して蒸発し、不足するのを防止できるもの
である。 As described above, the present invention includes a heat medium circulation circuit in which a heat collector and a heat exchanger are connected to each other by an outgoing pipe and a return pipe in which a heat collecting pump is interposed, and a heat exchanger is inserted. A heat storage tank that stores the heated liquid heated by the exchanger, a liquid supply pipe and a liquid drain pipe that communicate with the heat storage tank, a control valve installed in the liquid supply pipe or the liquid drain pipe, and a heat collecting tank. It is equipped with a control device that determines whether or not the heat collecting pump is available and starts or stops the heat collecting pump, and also opens the control valve when the heat medium temperature of the return pipe is higher than a predetermined value and operates the heat collecting pump. In an overheat collecting state where the heat medium temperature of the pipe exceeds a certain value, part of the heated liquid in the heat storage tank is discharged from the discharge pipe, and new heated liquid is supplied to the heat storage tank from the liquid supply pipe. The heat medium in the circulation circuit is cooled by a heat exchanger, and it is possible to prevent the heat medium from boiling and evaporating and running out.
第１図は本発明装置の一実施例を示す系統図、
第２図は第１図で用いた制御装置の動作説明図で
ある。
１……集熱器、２……熱交換器、４……集熱ポ
ンプ、６……往管、７……戻り管、８……循環回
路、９……蓄熱槽、１１……給水管（給液管）、
１２……制御弁、１３……排水管（排液管）、１
９……制御装置。
FIG. 1 is a system diagram showing an embodiment of the device of the present invention;
FIG. 2 is an explanatory diagram of the operation of the control device used in FIG. 1. 1... Heat collector, 2... Heat exchanger, 4... Heat collection pump, 6... Outgoing pipe, 7... Return pipe, 8... Circulation circuit, 9... Heat storage tank, 11... Water supply pipe (liquid supply pipe),
12... Control valve, 13... Drain pipe (drain pipe), 1
9...Control device.
Claims (1)
た往管と戻り管とで連設した熱媒体の循環回路
と、熱交換器が挿設され、熱交換器にて加熱され
る被加熱液を貯溜する蓄熱槽と、蓄熱槽に連通し
た給液管及び排液管と、給液管又は排液管に介設
された制御弁と、集熱の可否を判別して集熱ポン
プを発停するとともに、戻り管の熱媒体温度が一
定値以上の時に制御弁を開放し、且つ集熱ポンプ
を運転する制御装置とを備えたことを特徴とする
太陽熱集熱装置。1. A heat medium circulation circuit in which a heat collector and a heat exchanger are connected with an outgoing pipe and a return pipe in which a heat collecting pump is installed, and a heat exchanger is inserted, and the heat medium is heated by the heat exchanger. A heat storage tank that stores the liquid to be heated, a liquid supply pipe and a liquid drain pipe that communicate with the heat storage tank, a control valve installed in the liquid supply pipe or the liquid drain pipe, and a control valve that determines whether heat can be collected and collects the liquid. 1. A solar heat collection device comprising: a control device that starts and stops a heat pump, opens a control valve when the heat medium temperature of a return pipe is above a certain value, and operates a heat collection pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56076904A JPS57192746A (en) | 1981-05-20 | 1981-05-20 | Solar heat collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56076904A JPS57192746A (en) | 1981-05-20 | 1981-05-20 | Solar heat collecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57192746A JPS57192746A (en) | 1982-11-26 |
| JPS6350626B2 true JPS6350626B2 (en) | 1988-10-11 |
Family
ID=13618647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56076904A Granted JPS57192746A (en) | 1981-05-20 | 1981-05-20 | Solar heat collecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57192746A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482394B (en) * | 2016-12-27 | 2022-07-19 | 广东高而美制冷设备有限公司 | Solar air energy heat exchange system |
-
1981
- 1981-05-20 JP JP56076904A patent/JPS57192746A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57192746A (en) | 1982-11-26 |
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