JPS5833058A - Solar heat collecting apparatus - Google Patents

Solar heat collecting apparatus

Info

Publication number
JPS5833058A
JPS5833058A JP56131133A JP13113381A JPS5833058A JP S5833058 A JPS5833058 A JP S5833058A JP 56131133 A JP56131133 A JP 56131133A JP 13113381 A JP13113381 A JP 13113381A JP S5833058 A JPS5833058 A JP S5833058A
Authority
JP
Japan
Prior art keywords
heat
water
pump
heat collection
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
Application number
JP56131133A
Other languages
Japanese (ja)
Inventor
Hiroaki Yonekubo
寛明 米久保
Yukinori Ozaki
行則 尾崎
Yoshihisa Matsumoto
松本　嘉久
Tadashi Inoue
井上　忠志
Ayateru Miyoshi
理照 三好
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56131133A priority Critical patent/JPS5833058A/en
Publication of JPS5833058A publication Critical patent/JPS5833058A/en
Pending legal-status Critical Current

Links

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
    • F24S40/70—Preventing freezing
    • 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)

Abstract

PURPOSE:To secure the drainage of water to thereby prevent the freezing of the water by a method wherein a drain water collecting pump for pumping the water in the direction reverse to the pumping direction of a heat collecting pump is provided independently of the latter pump. CONSTITUTION:A heat collecting pump 2 and a drain water collecting pipe 8 for pumping the water in the direction reverse to the pumping direction of the heat collecting pump 2 are provided in a forward pipe 4 extending from the lower part of a heat accumulation tank 3 to a heat collector 1. A backward pipe 5 led from the heat collector 1 opens (as at 7) in an air layer section 6 formed in the upper part of the heat accumulation tank 3. With the above arrangement, when a heat collecting condition is ready, the heat collecting pump 2 is driven by a control device 15 and in winter, the drain water collecting pump 8 is driven so as to drain the heat collector 1 by using a high temperature side senser 16 and a low temperature side senser 17.

Description

【発明の詳細な説明】 本発明は、水を直接集熱器へ循環させ太陽熱を集熱する
太陽熱集熱装置に関するもので、その目的とするところ
は、凍結のおそれのある場合には、集熱ポンプとは別個
に設けた水回収ポンプを作動させて、集熱器や配管内の
水を強制排出させることにより、凍結を完全に防止する
ことができる太陽熱集熱装置を提供することにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solar heat collector that collects solar heat by circulating water directly to a heat collector. An object of the present invention is to provide a solar heat collector that can completely prevent freezing by operating a water recovery pump installed separately from a heat pump and forcibly discharging water in the collector and piping. .

従来、水を直接集熱器に循環させ集熱を行なう太陽熱集
熱装置は数多く存在したが、いずれも水抜きが完全に行
なえないため、凍結事故が続発していた。第３図はその
代表的な例を示すものである。すなわち、集熱器３１へ
は集熱ポンプ３２により蓄熱槽３３内の水が、集熱往き
管３４を経て循環され、かつ集熱器で昇温された温水は
集熱器　゛り管３６を経て再び蓄熱槽３３に戻される。Conventionally, there have been many solar heat collectors that collect heat by circulating water directly through the collector, but all of them have been unable to drain water completely, resulting in a series of freezing accidents. FIG. 3 shows a typical example. That is, the water in the heat storage tank 33 is circulated to the heat collector 31 by the heat collection pump 32 via the heat collection inlet pipe 34, and the hot water heated in the heat collector is circulated through the heat collector inlet pipe 36. After that, it is returned to the heat storage tank 33 again.

また蓄熱槽３３の上部にはジスターン３６が設けられて
おり、ボールタップ３７にて水道水が供給停止される。Further, a distern 36 is provided above the heat storage tank 33, and a ball tap 37 stops the supply of tap water.

給湯栓３８には給湯ポンプ３９にて蓄熱槽３３の温水が
供給される。また使用された温水の補給水は給水管４０
を通って上部のジスターン３６よシ水が補給される。さ
て、このシステムの３　・・−ン 凍結防止方法としては、集熱器３１を出た集熱戻り管３
６の最上部にエア抜き弁４１が設けられており、集熱ポ
ンプ３２の運転停止時には集熱ポンプ３２の吐出圧がか
からなくなるため、このエア抜き弁４１から空気を吸い
込み、がっ集熱器３１や集熱往き管３４．集熱戻り管３
６内の水はジスターン３６内の水位まで自然に落下する
設計となっている。しかし、この場合は、自然落水に頼
っているため、多少とも集熱器３１や管内に水が残った
り、おるりはエア抜き弁４１の通気孔が大気中に開口し
ているため、まずこの通気孔が凍結で塞がり落水が行な
えなくなり、集熱器３１や管が破損する事故が続出して
いた。また配管施工上もトラップ部ができると落水時に
水が残るため、棟越し配管ができないとか、落水のため
に細い管であるとエアロツクや表面張力により水が抜け
ないので、管を太くする必要がある等、不都合が多かっ
た。そしてまた、との落水方式以外にも、凍結のおそれ
のある時は、集熱ポンプを運転し蓄熱槽の温水を循環さ
せる循環方式もあるが、この場合は、集熱ポンプの動力
が必要であったり、せっかく集熱した温水を凍結防止の
ため、使ってしまったりするという欠点があり、省エネ
ルギーに反していた。以上のように従来の方式は、水抜
きが完全に行なえず、凍結事故を起こしたシ、省エネル
ギーに反するものであった。Hot water from the heat storage tank 33 is supplied to the hot water tap 38 by a hot water pump 39 . Also, the hot water that was used is the water supply pipe 40.
Water is replenished from the upper part of the cylinder 36 through the pipe. Now, as a method for preventing freezing of this system, the heat collection return pipe 3 that exits the heat collector 31
An air bleed valve 41 is provided at the top of the heat collecting pump 6, and when the heat collecting pump 32 stops operating, the discharge pressure of the heat collecting pump 32 is no longer applied. vessel 31 and heat collection pipe 34. Heat collection return pipe 3
The water in the tank 6 is designed to fall naturally to the water level in the tank 36. However, in this case, since it relies on natural water falling, some water may remain in the heat collector 31 or inside the pipes, and since the vent of the air vent valve 41 is open to the atmosphere, this may occur first. Accidents were occurring one after another in which the ventilation holes were blocked by freezing, making it impossible for water to drain, resulting in damage to the heat collector 31 and pipes. In addition, in piping construction, if a trap is created, water will remain when water falls, making it impossible to run piping over the ridge, or if the pipe is thin due to water falling, water cannot escape due to aerodynamics and surface tension, so the pipe must be thicker. There were many inconveniences. In addition to the falling water method, there is also a circulation method that operates a heat collection pump to circulate hot water in the heat storage tank when there is a risk of freezing, but in this case, the power of the heat collection pump is required. However, the drawback was that the hot water that had been collected was used to prevent freezing, which was contrary to energy conservation. As described above, the conventional method was not able to drain water completely, causing freezing accidents, and was contrary to energy conservation.

本発明は、集熱ポンプとは別個に集熱ポンプと逆方向に
送水を行なって集熱器および配管内の水を強制排出させ
る水回収ポンプを設けることにより、上記従来の欠点を
解消したものである。The present invention solves the above-mentioned conventional drawbacks by providing a water recovery pump that is separate from the heat collection pump and forcibly discharges water in the heat collector and piping by sending water in the opposite direction to the heat collection pump. It is.

以下、本発明をその実施例を示す図面とともに説明する
。Hereinafter, the present invention will be explained with reference to drawings showing embodiments thereof.

第１図は本発明における水回収ポンプを配管に集熱ポン
プと直列関係に設けた一実施例を示したもので、１は太
陽熱を集熱する集熱器で、この集熱器１へは集熱ポンプ
２によシ蓄熱槽ａ内の水が集熱配管の集熱往き管４を通
って供給され、かつ集熱器１で昇温された温水は集熱配
管の集熱戻り管６を通って再び蓄熱槽３に戻るもので、
これらにより集熱回路を構成している。また前記集熱ポ
する集熱往き管４に設けられている。そしてまた蓄熱槽
３の上部には空気層部６が設けられておシ、集熱器１の
出口と蓄熱槽３との間を配管する集熱戻り管６の端部間
ロアは、この空気層部６に臨まプ８は集熱ポンプ２と送
水方向が逆になるように、集熱配管である集熱往き管４
に集熱ポンプ２と直列関係に取り付けられている。なお
、ポンプの圧力損失は以外に低く、太陽熱集熱において
は直列に接続されていてもあまり問題とならない。また
蓄熱槽３から給湯栓９へは、給湯ポンプ１０により加圧
給湯される。そしてこの給湯栓９へは蓄熱槽３の温度が
高い時には直接お湯が供給され、また蓄熱槽３の温度が
低い時には補助ボイラー１１を経てお湯が供給されるが
、この選択は給湯経路切換弁１２にて行なわれる。Fig. 1 shows an embodiment in which a water recovery pump according to the present invention is installed in a pipe in series with a heat collection pump. 1 is a heat collector that collects solar heat; The water in the heat storage tank a is supplied by the heat collection pump 2 through the heat collection outgoing pipe 4 of the heat collection pipe, and the hot water heated in the heat collector 1 is supplied to the heat collection return pipe 6 of the heat collection pipe. and returns to the heat storage tank 3 again.
These constitute a heat collection circuit. Moreover, it is provided in the heat collection outgoing pipe 4 that collects the heat. Furthermore, an air layer 6 is provided in the upper part of the heat storage tank 3, and the lower end of the heat collection return pipe 6 that connects the outlet of the heat collector 1 and the heat storage tank 3 is filled with air. A pipe 8 facing the layer 6 has a heat collecting pipe 4 which is a heat collecting pipe so that the water supply direction is opposite to that of the heat collecting pump 2.
is installed in series with the heat collecting pump 2. In addition, the pressure loss of the pump is extremely low, so it does not pose much of a problem even if the pumps are connected in series for solar heat collection. Further, hot water is supplied under pressure from the heat storage tank 3 to the hot water tap 9 by a hot water pump 10 . When the temperature of the heat storage tank 3 is high, hot water is directly supplied to the hot water tap 9, and when the temperature of the heat storage tank 3 is low, hot water is supplied through the auxiliary boiler 11. It will be held at

また給湯栓９を開くことにより消費される水は、水道管
よυポールタップ１３を介して蓄熱槽３に供給される。Further, water consumed by opening the hot water tap 9 is supplied to the heat storage tank 3 via a water pipe and a υ pole tap 13.

そし工水が直接蓄熱槽３の上部に供給されると、上部に
溜まった温度の高い温水が低温になってしまうため、連
通管１４を用いて水を蓄熱槽３の下部に導いている。ま
たこのシステムの制御は、制御装置１６．集熱器１に取
り付けられ、かつ凍結防止のための温度センサーを兼ね
た高温側センサー１６．蓄熱槽３の下部に取シ付けられ
た低温側センサー１７などによって行なわれる。If the industrial water is directly supplied to the upper part of the heat storage tank 3, the high temperature hot water accumulated in the upper part becomes low temperature, so the water is guided to the lower part of the heat storage tank 3 using the communication pipe 14. The system is also controlled by the control device 16. A high temperature side sensor 16 attached to the heat collector 1 and also serving as a temperature sensor for freezing prevention. This is performed using a low temperature side sensor 17 attached to the lower part of the heat storage tank 3.

上記構成において、このシステムの動作を説明する。太
陽の日射により、集熱器１の温度が上昇し蓄熱槽３との
温度差が設定値以上になると、高温側センサー１６と低
温側センサー１７及び制御装置１６の働きで集熱ポンプ
２が起動する。この集熱ポンプ２の起動によシ、蓄熱槽
３の水は水回収ポンプ８．集熱往き管４を通って集熱器
１に送られ、かつこの集熱器１で昇温された温水は集熱
戻り管６を通って再び蓄熱槽３に戻る。また日射がなく
なり、集熱器１と蓄熱槽３の温度差が少なくなると、集
熱ポンプ２は運転を停止する。給湯７　パ　。The operation of this system in the above configuration will be explained. When the temperature of the heat collector 1 rises due to sunlight and the temperature difference with the heat storage tank 3 exceeds a set value, the heat collection pump 2 is activated by the action of the high temperature side sensor 16, low temperature side sensor 17, and control device 16. do. By starting this heat collection pump 2, the water in the heat storage tank 3 is removed by the water recovery pump 8. The hot water sent to the heat collector 1 through the heat collection outgoing pipe 4 and heated in the heat collector 1 returns to the heat storage tank 3 again through the heat collection return pipe 6. Furthermore, when there is no sunlight and the temperature difference between the heat collector 1 and the heat storage tank 3 decreases, the heat collection pump 2 stops operating. Hot water supply 7 pa.

栓９が開かれると給湯ポンプ１ｏが起動し、蓄熱槽３内
の温水を供給する。次に、このシステムの凍結防止方法
について述べる。集熱器１の温度が下がると高温側セン
サー１６がこれを検出し、あらかじめ定めた設定値以下
になると制御装置１６を介して、水回収ポンプ８が動作
する。この場合、集熱ポンプ２はもちろん停止した状態
にある。そしてこの水回収ポンプ８は集熱ポンプ２とは
逆方向に送水を行なうように取シ付けられているため、
集熱戻り管６の開ロアよシ空気を吸い込み、集熱戻り管
６．集熱器１．集熱往き管４の順番で順次水を強制排出
して行く。またこの水回収ポンプ８は所定時間回転する
と制御装置１５内に設けたタイマーの働きで自動的に運
転が停止する。このため、外気温が下がり凍結点以下に
なっても、特に外気にさらされ凍結を起こしやすい集熱
器やこの周辺の集熱配管は凍結を起こすことはない。When the tap 9 is opened, the hot water pump 1o is activated and supplies hot water from the heat storage tank 3. Next, a method for preventing freezing of this system will be described. When the temperature of the heat collector 1 falls, the high temperature side sensor 16 detects this, and when the temperature falls below a predetermined set value, the water recovery pump 8 is operated via the control device 16. In this case, the heat collection pump 2 is of course in a stopped state. Since the water recovery pump 8 is installed to send water in the opposite direction to the heat collection pump 2,
Air is sucked through the open lower part of the heat collection return pipe 6, and the heat collection return pipe 6. Heat collector 1. Water is forcibly discharged one by one in the order of the heat collection and outflow pipes 4. Further, after the water recovery pump 8 has been rotated for a predetermined period of time, the operation is automatically stopped by the action of a timer provided in the control device 15. Therefore, even if the outside temperature drops below the freezing point, the heat collector and the surrounding heat collection pipes, which are exposed to the outside air and are susceptible to freezing, will not freeze.

次に本発明における水回収ポンプを、集熱配管から分岐
したバイパス経路に設けた実施例について、第２図をも
とに説明する。Next, an embodiment in which the water recovery pump of the present invention is provided in a bypass path branching from a heat collection pipe will be described with reference to FIG. 2.

この第２図においては、集熱ポンプ２の吐出側の集熱器
き管４から分岐し、かつ集熱ポンプ２の吸込側に戻るバ
イパス経路１８が設けられている。In FIG. 2, a bypass path 18 is provided that branches from the heat collector pipe 4 on the discharge side of the heat collector pump 2 and returns to the suction side of the heat collector pump 2.

そしてこのバイパス経路１８の分岐点には、集熱往き管
４側の経路とバイパス経路１８側の経路とを選択する経
路切換手段としての電動三方弁１９が設けられている。An electric three-way valve 19 is provided at a branch point of the bypass path 18 as a path switching means for selecting the path on the heat collecting/outgoing pipe 4 side and the path on the bypass path 18 side.

そして水回収ポンプ８はバイパス経路１８に設けられ、
かつ集熱ポンプ２とは逆方向に送水を行なう方向で並列
関係に設けられている。なお、他の部分の構成について
は第１図と同様である。And the water recovery pump 8 is provided in the bypass path 18,
In addition, it is provided in a parallel relationship with the heat collection pump 2 in a direction in which water is fed in the opposite direction. Note that the configuration of other parts is the same as that in FIG. 1.

上記第２図の構成において、動作を説明すると、通常の
集熱運転時には電動三方弁１９は集熱往き管４側に切り
かわっており、その結果、集熱ポンプ２は蓄熱槽３の水
を集熱器１に送っている。夜間になって集熱器１の温度
が下がると、高温側センサー１６がこれを検出し、制御
装置１６を介して電動三方弁１９を動作させ、バイパス
経路１８側を選択するように経路切換えを行なう。To explain the operation of the configuration shown in FIG. 2 above, during normal heat collection operation, the electric three-way valve 19 is switched to the heat collection outgoing pipe 4 side, and as a result, the heat collection pump 2 pumps water from the heat storage tank 3. It is sent to heat collector 1. When the temperature of the heat collector 1 falls at night, the high temperature side sensor 16 detects this and operates the electric three-way valve 19 via the control device 16 to switch the path to select the bypass path 18 side. Let's do it.

それとともに、水回収ポンプ８が起動して、集９　い 熱戻り管６．集熱器１．集熱往き管４内の水を強制排出
する。そして水の強制排出が終ると、水回収ポンプ８が
運転を停止し、かつ電動三方弁１９も元の集熱往き管４
側に戻る。なお、バイパス経路１８の戻し方は、この実
施例以外にも直接蓄熱槽３に戻すとか、外部に臨ませる
など、要望に応じて任意に選べる。At the same time, the water recovery pump 8 is started and the heat return pipe 6. Heat collector 1. The water in the heat collection/outflow pipe 4 is forcibly discharged. When the forced discharge of water is finished, the water recovery pump 8 stops operating, and the electric three-way valve 19 returns to the original heat collection and outflow pipe 4.
Return to the side. Note that the method of returning the bypass path 18 can be arbitrarily selected in accordance with the request, such as returning directly to the heat storage tank 3 or facing the outside, in addition to this embodiment.

また、前記バイパス経路１８は、上記第２図の実施例で
は、集熱ポンプ２の吐出側の集熱往き管４から分岐して
集熱ポンプ２の吸込側に戻る構成を採用したが、集熱ポ
ンプ２の吐出側の集熱往き管４から分岐するとともに、
集熱ポンプ２の吐出側に戻す方法もある。但しこの場合
、水の強制排出運転時において水回収ポンプ８により強
制排出される水は、集熱ポンプ２内を通るととＫなるた
め、水回収ポンプ８の揚程はやや太き目のものを選定す
る必要がある。Further, in the embodiment shown in FIG. 2, the bypass path 18 is configured to branch from the heat collection outgoing pipe 4 on the discharge side of the heat collection pump 2 and return to the suction side of the heat collection pump 2. It branches off from the heat collecting pipe 4 on the discharge side of the heat pump 2, and
There is also a method of returning the heat to the discharge side of the heat collecting pump 2. However, in this case, the water that is forcibly discharged by the water recovery pump 8 during the forced water discharge operation becomes K when it passes through the heat collection pump 2, so the pump head of the water recovery pump 8 should be slightly thicker. It is necessary to select.

従って、上記第２図の実施例の効果としては、集熱ポン
プ２が動いている集熱運転時、および水回収ポンプ８が
動く凍結防止運転時とも、相手方１０　　　　。Therefore, as for the effect of the embodiment shown in FIG.

のポンプの中を水が通り抜けないので、ポンプの揚程は
太き目のものにする必要がない点である。Since water does not pass through the pump, there is no need for the pump to have a large lift.

以上のように本発明によれば、集熱ポンプとは別個に、
集熱ポンプと逆方向に送水を行なって集熱、器および配
管内の水を強制排出させる水回収ポンプを設けているた
め、例えば集熱器と蓄熱槽を接続する配管がトラップ状
になっていたり、あるいは棟越し配管がなされている場
合でも、水を強制排出させることができ、工事上の制約
がなくなる。また従来の落水方式のように配管を太くす
る必要がなく、細い配管でよいため、配管が安価にでき
るとともに、集熱運転時の放熱ロスもなくなる。そして
ま１．た前記水回収ポンプは凍結防止のために短時間運
転するだけでよいため、従来の循環方式に比べ、大巾な
省エネルギーがはかれるものである。As described above, according to the present invention, separately from the heat collection pump,
A water recovery pump is installed that sends water in the opposite direction of the heat collection pump to collect heat and forcibly discharge the water in the vessel and piping, so for example, the piping connecting the heat collector and the heat storage tank becomes a trap. Water can be forcibly discharged even in cases where there is over-building piping or over-building piping, eliminating construction constraints. In addition, there is no need to make the piping thicker as in the conventional falling water system, and only thin piping is required, so the piping can be made at low cost and there is no heat radiation loss during heat collection operation. And 1. Since the water recovery pump only needs to be operated for a short period of time to prevent freezing, a large amount of energy can be saved compared to conventional circulation systems.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す太陽熱集熱装置のシス
テム構成図、第２図は本発明の他の実施例を示す太陽熱
集熱装置のシステム構成図、第３１１　。 図は従来の太陽熱集熱装置のシステム構成図である。 １・・・・・集熱器、２・・・・・・集熱ポンプ、３・
・・・・蓄熱槽、４・・・・・・集熱往き管（配管）、
６・・・・・・集熱戻り管（配管）、８・・・・・・水
回収ポンプ、１８・・・・・バイパス経路、１９・・・
・・・電動三方弁（経路切換手段）。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第１
図 ２２ ８３　図FIG. 1 is a system configuration diagram of a solar heat collection device showing one embodiment of the present invention, and FIG. 2 is a system configuration diagram of a solar heat collection device showing another embodiment of the present invention. The figure is a system configuration diagram of a conventional solar heat collector. 1... Heat collector, 2... Heat collection pump, 3...
... Heat storage tank, 4 ... Heat collection pipe (piping),
6...Heat collection return pipe (piping), 8...Water recovery pump, 18...Bypass route, 19...
...Electric three-way valve (route switching means). Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 22 83 Figure

Claims (3)

【特許請求の範囲】[Claims] （１）太陽熱を集熱する集熱器と、この集熱器に水を循
環させる集熱ポンプを介して配管接続され、かつ集熱器
で昇温された温水を蓄える蓄熱槽とを備え、前記集熱ポ
ンプとは別個に、集熱ポンプと逆方向に送水を行なって
集熱器および配管内の水を強制排出させる水回収ポンプ
を設けてなる太陽熱集熱装置。(1) Equipped with a heat collector that collects solar heat, and a heat storage tank that is connected to the heat collector via piping via a heat collection pump that circulates water to the heat collector, and that stores hot water heated by the heat collector, A solar heat collection device that is provided with a water recovery pump that is separate from the heat collection pump and that sends water in the opposite direction to the heat collection pump to forcibly discharge water in the heat collector and piping. （２）前記水回収ポンプを、前記配管に、集熱ポンプと
直列関係に設けた特許請求の範囲第１項記載の太陽熱集
熱装置。(2) The solar heat collection device according to claim 1, wherein the water recovery pump is provided in the piping in series with the heat collection pump. （３）前記水回収ポンプを、前記配管より分岐され、か
つこの分岐点に経路切換手段を有するノ（イノくス経路
に、集熱ポンプと並列関係に設けた特許請求の範囲第１
項記載の太陽熱集熱装置。(3) The water recovery pump is provided in a parallel relationship with the heat collection pump in a path branched from the piping and having path switching means at this branch point.
The solar heat collector described in Section 1.
JP56131133A 1981-08-20 1981-08-20 Solar heat collecting apparatus Pending JPS5833058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56131133A JPS5833058A (en) 1981-08-20 1981-08-20 Solar heat collecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56131133A JPS5833058A (en) 1981-08-20 1981-08-20 Solar heat collecting apparatus

Publications (1)

Publication Number Publication Date
JPS5833058A true JPS5833058A (en) 1983-02-26

Family

ID=15050752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56131133A Pending JPS5833058A (en) 1981-08-20 1981-08-20 Solar heat collecting apparatus

Country Status (1)

Country Link
JP (1) JPS5833058A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102589165A (en) * 2012-03-08 2012-07-18 徐何燎 Series-type displacing constant-temperature anti-freezing solar water heater system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102589165A (en) * 2012-03-08 2012-07-18 徐何燎 Series-type displacing constant-temperature anti-freezing solar water heater system

Similar Documents

Publication Publication Date Title
US4133338A (en) Freeze protection for solar heating systems
JPS58193051A (en) Heat collector for solar heat
US4453534A (en) Solar water heating system
JPS5833058A (en) Solar heat collecting apparatus
JP4174608B2 (en) Snowmelt water supply system for running roof
JPS6140892B2 (en)
JPS5851A (en) Solar heat collecting apparatus
JP2729470B2 (en) Direct heat collecting solar water heater
JPH0250377B2 (en)
JP2874327B2 (en) Bath water heater
JPS5937646Y2 (en) solar heat collector
JPS6140893B2 (en)
JPS58193043A (en) Heat collector for solar heat
JPS61280346A (en) Control device for solar heat collecting device
JPH0577939B2 (en)
JPS58193050A (en) Heat collector for solar heat
JPS6337635Y2 (en)
JPS58187751A (en) Solar heat hot water device
JPS6350627B2 (en)
JP2608317B2 (en) Cooling method
KR840000334B1 (en) Solar energy collector
JPH09138004A (en) Solar heat water-heater facility
JPS608613Y2 (en) solar hot water extraction equipment
JPH09138006A (en) Solar heat water-heater facility
JPH05215411A (en) Solar heat-collecting system