JPS6141376B2 - - Google Patents
Info
- Publication number
- JPS6141376B2 JPS6141376B2 JP56145364A JP14536481A JPS6141376B2 JP S6141376 B2 JPS6141376 B2 JP S6141376B2 JP 56145364 A JP56145364 A JP 56145364A JP 14536481 A JP14536481 A JP 14536481A JP S6141376 B2 JPS6141376 B2 JP S6141376B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat medium
- responsive valve
- collector
- circulation circuit
- 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
- 238000009835 boiling Methods 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000007788 liquid Substances 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】
本発明は太陽熱利用集熱装置における熱媒沸騰
防止装置に関し、水または熱媒の集熱循環におけ
る沸騰を防止するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat medium boiling prevention device in a solar heat collector, which prevents boiling of water or heat medium during heat collection circulation.
太陽熱利用の集熱装置において、その熱交換器
の負荷側の異常、たとえば(イ)負荷側の熱交換ポン
プの故障、(ロ)過熱防止用排湯弁の故障、(ハ)過熱防
止用給水装置側の断水、(ニ)負荷側の制御器の故障
その他の理由によつて負荷が小さくなれば、シス
テム内の熱媒が異常に沸騰することがある。しか
し、この場合、液々交換によつて過熱を防止する
と、水を大量に放出することになり経済的なロス
が非常に大である。 In solar heat collection equipment, abnormalities on the load side of the heat exchanger, such as (a) failure of the heat exchange pump on the load side, (b) failure of the hot water discharge valve for overheating prevention, and (c) water supply for overheating prevention. If the load becomes small due to a water outage on the equipment side, (d) failure of the controller on the load side, or other reasons, the heat medium in the system may boil abnormally. However, in this case, if overheating is prevented by liquid-liquid exchange, a large amount of water will be released, resulting in a very large economic loss.
本発明はこのような従来の問題点に鑑み、シス
テム内の熱媒温度が一定以上になると、それを熱
応動弁が検知して開放し、集熱器内の熱媒を落差
によつて抜き取ると同時に、循環ポンプ、補給ポ
ンプを停止させて熱媒の機械力による流動を止め
ることにより、集熱器内の加熱があつても沸騰を
防止できるようにしたものである。 In view of these conventional problems, the present invention has been developed in such a way that when the temperature of the heat medium in the system exceeds a certain level, a heat-responsive valve detects this and opens the valve, and the heat medium in the heat collector is extracted by a drop. At the same time, by stopping the circulation pump and replenishment pump to stop the mechanical flow of the heat medium, boiling can be prevented even if the heat collector is heated.
以下、図示の実施例について本発明を詳述する
と、第１図に示すように集熱器１、熱媒循環ポン
プ２、熱交換器３よりなる熱媒循環回路にその熱
交換器３と集熱器１入口との間においてワツクス
型などの熱応動弁４が分岐接続されまたこの熱応
動弁４の感熱部４ａは循環回路のメイン管側に取
り付けられる。同様に循環ポンプ２と集熱器１の
出口側との間で循環回路に膨張タンク５が分岐接
続され、更にこの膨張タンク５の分岐点と循環ポ
ンプ２との間に前記熱応動弁４と同等高さとなる
ようにワツクス型などの熱応動弁６が分岐接続さ
れている。また、この熱応動弁６の感熱部６ａは
循環回路のメイン管に設置されている。両熱応動
弁４，６の出口側は熱媒タンク７へ接続され、そ
の熱媒タンク７の下部に、熱媒補給装置を構成す
る補給タンク８のボールタツプ９が接続されてい
る。両熱応動弁４，６の本体内に設置された接点
４ｂ，６ｂは、第２図に示すように並列接続さ
れ、これに膨張タンク５の水位検知部１０を介し
て補給ポンプ１１が、また差温回路接点１２を介
して循環ポンプ２が夫々接続されている。 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. As shown in FIG. A wax-type or other heat-responsive valve 4 is branched and connected between the inlet of the heating device 1 and a heat-sensitive portion 4a of the heat-responsive valve 4 is attached to the main pipe side of the circulation circuit. Similarly, an expansion tank 5 is branch-connected to the circulation circuit between the circulation pump 2 and the outlet side of the heat collector 1, and the thermally responsive valve 4 is connected between the branch point of the expansion tank 5 and the circulation pump 2. Heat-responsive valves 6 such as wax type valves are branched and connected so as to have the same height. Further, the heat-sensitive portion 6a of the heat-responsive valve 6 is installed in the main pipe of the circulation circuit. The outlet sides of both thermally responsive valves 4 and 6 are connected to a heat medium tank 7, and a ball tap 9 of a replenishment tank 8 constituting a heat medium replenishment device is connected to the lower part of the heat medium tank 7. Contact points 4b and 6b installed in the bodies of both thermally responsive valves 4 and 6 are connected in parallel as shown in FIG. Circulation pumps 2 are respectively connected via temperature difference circuit contacts 12 .
上記構成において、各熱応動弁４，６の温度設
定をする際には、集熱器１入口側が熱媒の沸騰を
予想して出口側の温度より低めとなるように設定
する（例えば入口側は90℃、出口側は97℃）また
各熱応動弁４，６の感熱部４ａ，６ａは分岐点よ
り下方に設置する。これは分岐点より上部に設置
すれば、集熱器１内の熱媒を抜いた後は、循環回
路内の空気温度を測ることになつて不都合を生じ
るためである。なお、感熱部４ａ，６ａを分岐点
より上方に置く場合は、溜り部を設けるようにす
るか、熱媒タンク７の位置を少し高くして、絶え
ず熱媒を測るようにする必要がある。熱交換器３
の負荷側の異常によつて熱媒の温度が設定値より
高くなつた場合には熱応動弁４，６の感熱部４
ａ，６ａがそれを検知し、各熱応動弁４，６が
「開」状態となるので、集熱器１内の熱媒を落差
によつて直ちに抜くことができる。それと同時に
熱応動弁４，６の本体に設置した接点４ｂ，６ｂ
がOFF状態となり、循環ポンプ２、補給ポンプ
１１の運転を停止させる。従つて、集熱器１内の
熱媒の加熱があつても、システム内の熱媒の沸騰
を防止できる。そして温度が下ると、熱応動弁
４，６が復帰して熱媒が補給される。 In the above configuration, when setting the temperature of each heat-responsive valve 4, 6, the temperature on the inlet side of the collector 1 is set to be lower than the temperature on the outlet side in anticipation of boiling of the heat medium (for example, the temperature on the inlet side (90°C on the outlet side, 97°C on the outlet side) The heat-sensitive parts 4a, 6a of each heat-responsive valve 4, 6 are installed below the branch point. This is because if it is installed above the branch point, after the heat medium in the heat collector 1 is removed, the temperature of the air in the circulation circuit will be measured, causing an inconvenience. In addition, when the heat sensitive parts 4a and 6a are placed above the bifurcation point, it is necessary to provide a reservoir part or to raise the position of the heat medium tank 7 a little higher so that the heat medium can be constantly measured. heat exchanger 3
If the temperature of the heating medium becomes higher than the set value due to an abnormality on the load side, the heat sensitive parts 4 of the thermally responsive valves 4 and 6
a, 6a detect this, and each thermally responsive valve 4, 6 becomes "open", so that the heat medium in the heat collector 1 can be immediately drawn out due to the head difference. At the same time, contacts 4b and 6b installed on the body of the thermally responsive valves 4 and 6
becomes OFF, and the operation of the circulation pump 2 and replenishment pump 11 is stopped. Therefore, even if the heat medium in the heat collector 1 is heated, boiling of the heat medium in the system can be prevented. Then, when the temperature drops, the thermally responsive valves 4 and 6 return to their original positions and the heat medium is replenished.
なお、熱応動弁４，６は任意に温度を可変でき
るとしても、両熱応動弁４，６が同時に開くよう
にすることは困難であるので、第３図に示す如
く、片側が働いても循環ポンプ２、補給ポンプ１
１等が停止するように接点４ｂ，６ｂを直列接続
する方が好ましい。 Note that even if the temperature of the thermally responsive valves 4 and 6 can be varied arbitrarily, it is difficult to open both the thermally responsive valves 4 and 6 at the same time. Circulation pump 2, supply pump 1
It is preferable to connect the contacts 4b and 6b in series so that the first one is stopped.
熱応動弁は実施例では２個使用しているが何れ
か１個でも良く、また３個以上でも良い。 In the embodiment, two thermally-responsive valves are used, but any one of them may be used, or three or more may be used.
以上実施例に詳述したように本発明によれば、
熱交換器の負荷側の異常を生じたときにも熱媒の
沸騰を確実に防止することができ、しかも熱媒の
ロス、老化を防止し、システム自体の安全装置と
しても活用することができる。 According to the present invention, as detailed in the embodiments above,
It can reliably prevent boiling of the heating medium even when an abnormality occurs on the load side of the heat exchanger, and it can also be used as a safety device for the system itself, preventing loss and aging of the heating medium. .
第１図は本発明に係る太陽熱利用集熱装置にお
ける熱媒沸騰防止装置の一実施例を示す構成図、
第２図及び第３図はその制御回路図である。
１は集熱器、２は熱媒循環ポンプ、３は熱交換
器、４，６は熱応動弁、４ａ，６ａは感熱部、５
は膨張タンク、７は熱媒タンク、８は補給タン
ク、９はボールタツプ、１１は補給ポンプであ
る。
FIG. 1 is a configuration diagram showing an embodiment of a heat medium boiling prevention device in a solar heat collecting device according to the present invention;
FIGS. 2 and 3 are control circuit diagrams thereof. 1 is a heat collector, 2 is a heat medium circulation pump, 3 is a heat exchanger, 4 and 6 are heat-responsive valves, 4a and 6a are heat sensitive parts, 5
1 is an expansion tank, 7 is a heat medium tank, 8 is a replenishment tank, 9 is a ball tap, and 11 is a replenishment pump.
Claims (1)
に配管接続して熱媒循環回路を構成し、この循環
回路に分岐接続した膨張タンクに熱媒補給装置を
連結し、集熱器の入口側または出口側の前記循環
回路に熱応動弁を分岐接続し、この熱応動弁の出
口に熱媒タンクを配管接続し、この熱媒タンクを
熱媒補給装置のボールタツプ部に接続配管し、熱
媒が設定温度以上の時に熱応動弁が開放して熱媒
循環ポンプ及び熱媒補給装置を停止させるように
したことを特徴とする太陽熱利用集熱装置におけ
る熱媒沸騰防止装置。 ２ 前記熱応動弁の感熱部を循環回路に対する熱
応動弁の分岐点より下部に設けたことを特徴とす
る特許請求の範囲第１項記載の太陽熱利用集熱装
置における熱媒沸騰防止装置。[Scope of Claims] 1. A heat medium circulation pump, a heat exchanger, and a heat collector are connected in series to form a heat medium circulation circuit, and a heat medium replenishment device is provided to an expansion tank branch-connected to this circulation circuit. A thermally responsive valve is branch-connected to the circulation circuit on the inlet side or outlet side of the heat collector, a heat medium tank is connected via piping to the outlet of this thermally responsive valve, and this heat medium tank is connected to the heat medium supply device. A heat medium in a solar heat collector, characterized in that the heat medium is connected to a ball tap part, and a heat-responsive valve is opened to stop a heat medium circulation pump and a heat medium replenishment device when the temperature of the heat medium is higher than a set temperature. Boiling prevention device. 2. A heat medium boiling prevention device in a solar heat collector according to claim 1, characterized in that the heat-sensitive portion of the heat-responsive valve is provided below a branch point of the heat-responsive valve with respect to the circulation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56145364A JPS5847955A (en) | 1981-09-14 | 1981-09-14 | Preventing device of boiling up of heat medium in solar collecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56145364A JPS5847955A (en) | 1981-09-14 | 1981-09-14 | Preventing device of boiling up of heat medium in solar collecting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5847955A JPS5847955A (en) | 1983-03-19 |
| JPS6141376B2 true JPS6141376B2 (en) | 1986-09-13 |
Family
ID=15383492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56145364A Granted JPS5847955A (en) | 1981-09-14 | 1981-09-14 | Preventing device of boiling up of heat medium in solar collecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5847955A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60207855A (en) * | 1984-03-30 | 1985-10-19 | Kyocera Corp | Solar heat collecting device |
| JPS60159964U (en) * | 1984-04-02 | 1985-10-24 | 富士電機株式会社 | solar water heating device |
| ES2224844B1 (en) * | 2003-04-16 | 2006-07-01 | Konetsu, S.L. | SYSTEM OF FLAT SOLAR COLLECTORS. |
| ES2272171B1 (en) * | 2005-07-26 | 2008-04-01 | Jose Maria TORRENS RASAL | INSTALLATION OF HEATING AND HOT SANITARY WATER THROUGH SOLAR THERMAL ENERGY. |
-
1981
- 1981-09-14 JP JP56145364A patent/JPS5847955A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5847955A (en) | 1983-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4209079A (en) | Lubricating system for bearing shoes | |
| US4207866A (en) | Solar heating system including freeze protection | |
| JPS6029856B2 (en) | Device for obtaining hot water | |
| JPS58193051A (en) | Heat collector for solar heat | |
| JPS6141376B2 (en) | ||
| JPH0250377B2 (en) | ||
| JPS6232378B2 (en) | ||
| JPH018920Y2 (en) | ||
| JPH0117016Y2 (en) | ||
| JPH045925Y2 (en) | ||
| JP2822863B2 (en) | Control method of hot water boiler | |
| JPS6051018B2 (en) | solar heat collection system | |
| JP2017172949A (en) | Hot water heating device | |
| JP2523849B2 (en) | Electric water heater | |
| JPS6055737B2 (en) | Overtemperature rise prevention device for forced circulation solar water heaters | |
| JPH035811Y2 (en) | ||
| JPH0250375B2 (en) | ||
| JPS58108396A (en) | Protector for heat exchanger | |
| JPH0218430Y2 (en) | ||
| JPS586165Y2 (en) | Freeze protection device in central heating system | |
| JPS61149758A (en) | Heat pump type hot water supply apparatus | |
| JPS622451Y2 (en) | ||
| JPH0228363Y2 (en) | ||
| JPS63204067A (en) | Solar heat collecting device | |
| JPS6030674Y2 (en) | Solar heat water heater |