JPS61208472A - Solar-heat utilizing water heater - Google Patents
Solar-heat utilizing water heaterInfo
- Publication number
- JPS61208472A JPS61208472A JP60049013A JP4901385A JPS61208472A JP S61208472 A JPS61208472 A JP S61208472A JP 60049013 A JP60049013 A JP 60049013A JP 4901385 A JP4901385 A JP 4901385A JP S61208472 A JPS61208472 A JP S61208472A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- valve
- heat
- condenser
- amount
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 21
- 239000003507 refrigerant Substances 0.000 claims description 73
- 238000004781 supercooling Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000013526 supercooled liquid Substances 0.000 description 1
Classifications
-
- 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
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明はヒートポンプを用いて太陽熱および大気熱を集
熱する太陽熱利用温水装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a solar water heating system that collects solar heat and atmospheric heat using a heat pump.
従来の技術
従来のこの種の太陽熱利用温水袋＠は、第２図に示すよ
うに、圧縮機１、凝縮器２、減圧装置３１太陽熱および
大気熱を集熱する集熱器４を順次連結した冷媒回路と、
貯湯槽５、循環ポンプ６、前記凝縮器２と熱交換関係を
有する水熱交換器７を連結した給湯回路とを備えた構成
が知られている。2. Description of the Related Art As shown in Fig. 2, this type of conventional solar hot water bag @ has a compressor 1, a condenser 2, a pressure reducing device 31, and a heat collector 4 that collects solar heat and atmospheric heat, which are connected in sequence. refrigerant circuit;
A configuration is known that includes a hot water storage tank 5, a circulation pump 6, and a hot water supply circuit connected to a water heat exchanger 7 having a heat exchange relationship with the condenser 2.
（例えば、特開昭５９−１５７７８号公報）発明が解決
しようとする問題点
しかしながら上記のような構成では、太陽日射の他に外
気温湿度、風速などにより大きく変動する集熱熱量と低
水温から高沸上げ湯温へと大きく変化する水温によって
ヒートポンプ集熱サイクル動作点が大きく変動し、各ヒ
ートポンプ動作点での温度、圧力変化による冷媒物性値
変化により、冷媒回路内の最適冷媒量が大きく異なるに
もかかわらず、冷媒回路に封入された一定量の冷媒でサ
イクルバランスをとらなければならないため、外気温度
あるいは湯温に対する集熱運転範囲が狭められたり、集
熱運転効率の低下を生じたりした。(For example, Japanese Unexamined Patent Publication No. 59-15778) Problems to be Solved by the Invention However, with the above configuration, the amount of collected heat and low water temperature, which vary greatly depending on outside temperature, humidity, wind speed, etc. in addition to solar radiation, cannot be solved. The operating point of the heat pump heat collection cycle changes greatly due to the large change in water temperature to high boiling water temperature, and the optimum amount of refrigerant in the refrigerant circuit varies greatly due to changes in refrigerant physical properties due to changes in temperature and pressure at each heat pump operating point. Nevertheless, because the cycle balance must be maintained with a certain amount of refrigerant sealed in the refrigerant circuit, the heat collection operation range with respect to outside air temperature or hot water temperature is narrowed, and the heat collection operation efficiency is reduced. .
つまり、主として外気負荷が小さい時には、冷媒回路中
の冷媒は過充填となり、圧力上昇を生じて圧、縮機入力
の急激な増加により運転効率が低下したり、圧縮機の寿
命、信頼性に関して問題があった。さらに、主として外
気負荷が大きい場合には、冷媒回路中の冷媒は不足とな
り、時には集熱能力の急激な低下により運転効率の大巾
減少を生じたり、あるいは圧縮機モータの巻線温度が高
くなり圧縮機の寿命・信頼性に関して問題があった。In other words, mainly when the outside air load is small, the refrigerant in the refrigerant circuit becomes overfilled, causing a pressure rise, which causes a sudden increase in pressure and compressor input, reducing operating efficiency and causing problems with the lifespan and reliability of the compressor. was there. Furthermore, mainly when the outside air load is large, there is a shortage of refrigerant in the refrigerant circuit, and sometimes the heat collection capacity suddenly decreases, resulting in a significant decrease in operating efficiency, or the winding temperature of the compressor motor increases. There were problems with the lifespan and reliability of the compressor.
木発明はかかる従来の問題点を解消するもので、集熱運
転範囲の拡大と集熱運転効率の向上および信頼性の向上
を目的とするものである。The present invention is intended to solve these conventional problems, and aims to expand the range of heat collection operation, improve the efficiency of heat collection operation, and improve reliability.
問題点を解決するための手段
り記問題点を解決するために本発明の太陽熱利用温水装
置は、圧縮機、凝縮器、減圧装置、太陽熱および大気熱
を集熱する集熱器を順次連結して成る冷媒主回路で、前
記圧縮機と凝縮器とを連結する吐出管に並列に第一の開
閉弁を具備した分岐管を設け、また、前記凝縮器と前記
減圧装置との間に前記分岐管と熱交換的関係をもち第二
の開閉弁を具備した冷媒量調節容器を設け、さらに、前
記凝縮器の出口冷媒の過冷却度を検出する過冷却度検出
手段の出力に応じて制御する制御装置と、前記制御装置
の出力で制御する前記第一の開閉弁と第二の開閉弁（！
：前記冷媒量調節容器七からなる冷媒制御装置を配設し
た構成としたものである。List of means for solving the problems In order to solve the problems, the solar water heating system of the present invention sequentially connects a compressor, a condenser, a pressure reducing device, and a collector for collecting solar heat and atmospheric heat. A refrigerant main circuit consisting of a branch pipe equipped with a first on-off valve is provided in parallel with the discharge pipe connecting the compressor and the condenser, and the branch pipe is provided between the condenser and the pressure reducing device. A refrigerant amount regulating container having a heat exchange relationship with the pipe and equipped with a second on-off valve is provided, and the refrigerant amount is further controlled according to the output of a degree of supercooling detection means for detecting the degree of supercooling of the refrigerant at the outlet of the condenser. a control device, and the first on-off valve and second on-off valve (!) controlled by the output of the control device.
: The structure is such that a refrigerant control device consisting of the refrigerant amount adjusting container seven is disposed.
作 用
木発明は丑記した構成によって、冷媒主回路を循環する
冷媒量が過充填の場合には冷媒量調節容器の中に冷媒主
回路内の冷媒の一部を回収し、冷媒主回路内の冷媒量が
不足の場合は冷媒量調節容器内の冷媒を冷媒主回路中に
圧力差を用いて注入するものである。With the configuration described above, the invention recovers a part of the refrigerant in the refrigerant main circuit into the refrigerant amount adjustment container when the amount of refrigerant circulating in the refrigerant main circuit is overfilled, and the refrigerant in the refrigerant main circuit is When the amount of refrigerant is insufficient, the refrigerant in the refrigerant amount adjustment container is injected into the main refrigerant circuit using a pressure difference.
実施例
以下、本発明の実施例を添付図面にもとづいて説明する
。第１図において、圧縮機１、凝縮器２、減圧装置３、
太陽熱および大気熱を集熱する集熱器４を順次連結した
冷媒主回路と貯湯槽５、苗種ポンプ６、前記凝縮器２と
熱交換関係を有する水熱交換器７を連結した給湯回路と
から構成され、さらに、前記圧縮機１と前記凝縮器２と
を連結する吐出管８に並列に第一の開閉弁９を具備した
分岐管１０を設け、また、前記分岐管１０と熱交換関係
をもち第二の開閉弁１１を具備した冷媒量調節容器１２
を前記凝縮器２と前記減圧装置３との間に接続している
。１３は冷媒の過冷却度を検出する過冷却度検出手段で
あり、前記過冷却度検出手段１３の出力に応じて制御装
置１４は第一の開閉弁９と第二の開閉弁１１の開閉を制
御するものである。Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. In FIG. 1, a compressor 1, a condenser 2, a pressure reducing device 3,
A main refrigerant circuit in which a heat collector 4 for collecting solar heat and atmospheric heat is successively connected, a hot water supply circuit in which a hot water storage tank 5, a seedling pump 6, and a water heat exchanger 7 having a heat exchange relationship with the condenser 2 are connected. Further, a branch pipe 10 equipped with a first on-off valve 9 is provided in parallel with the discharge pipe 8 connecting the compressor 1 and the condenser 2, and a heat exchange relationship with the branch pipe 10 is provided. A refrigerant amount regulating container 12 equipped with a second on-off valve 11
is connected between the condenser 2 and the pressure reducing device 3. Reference numeral 13 denotes a degree of supercooling detection means for detecting the degree of supercooling of the refrigerant, and a control device 14 controls the opening and closing of the first on-off valve 9 and the second on-off valve 11 according to the output of the degree of supercooling detection means 13. It is something to control.
次に、この実施例の構成における作用を説明する。今、
太陽熱利用温水装置が安定に、かつ、効率よく運転する
ためには、凝縮器２出口の冷媒の過冷却度Ｓは次式に示
すようにある範囲にあればよい。Next, the operation of the configuration of this embodiment will be explained. now,
In order for the solar water heating system to operate stably and efficiently, the degree of supercooling S of the refrigerant at the outlet of the condenser 2 should be within a certain range as shown in the following equation.
Ｓ １（Ｓ （Ｓ ２・・・・・・・・・・・・（１）
圧縮機１を運転する場合には、最初は第一の開閉弁９、
第二の開閉弁１１とを閉じておく。そして、圧縮機１を
運転後ある時間経過すると、過冷却度検出手段１３は、
凝縮器２出口の冷媒の過冷却度Ｓを検出する。S 1(S (S 2・・・・・・・・・・・・(1)
When operating the compressor 1, first the first on-off valve 9,
The second on-off valve 11 is kept closed. Then, after a certain period of time has passed after the compressor 1 is operated, the supercooling degree detection means 13
The degree of supercooling S of the refrigerant at the outlet of the condenser 2 is detected.
先ず、前記過冷却度Ｓが８１以下の場合について説明す
る。この場合には冷媒主回路における循環冷媒量は最適
な循環冷媒量よりも少ないことになる。だから、過冷却
度検出手段１３の出力を受けた制御装置１４からの出力
信号によって第一の開閉弁９と第二の開閉弁１１とを開
く。このようにす′れば、冷媒量調節容器１２は分岐管
１０で加熱され、冷媒量調節容器１２の圧力は凝縮器２
の出口圧力よりも高くなるので、冷媒量調節容器１２内
の冷媒は冷媒主回路中に補充され、循環冷媒量が増加す
る。このようにして、過冷却度Ｓが（１）式で示される
範囲（最適な循環冷媒量）になれば、第一の開閉弁９と
第二の開閉弁１１とを閉じる０
次に、前記過冷却度Ｓが式（１）で示される範囲内にあ
る場合には、第一の開閉弁９と第二の開閉弁１１はとも
に閉じる。First, a case where the degree of supercooling S is 81 or less will be explained. In this case, the amount of circulating refrigerant in the main refrigerant circuit will be less than the optimum amount of circulating refrigerant. Therefore, the first on-off valve 9 and the second on-off valve 11 are opened by the output signal from the control device 14 that receives the output from the supercooling degree detection means 13. In this way, the refrigerant amount adjustment container 12 is heated by the branch pipe 10, and the pressure of the refrigerant amount adjustment container 12 is reduced to the condenser 2.
Therefore, the refrigerant in the refrigerant amount adjustment container 12 is replenished into the refrigerant main circuit, and the amount of circulating refrigerant increases. In this way, when the degree of supercooling S reaches the range (optimum circulating refrigerant amount) shown by equation (1), the first on-off valve 9 and the second on-off valve 11 are closed. When the degree of supercooling S is within the range shown by equation (1), both the first on-off valve 9 and the second on-off valve 11 are closed.
また、前記過冷却度Ｓが８２以上の場合について説明す
る。この場合には循環冷媒量は最適な循環冷媒量よりも
多いことになる。だから、制御装・ 置１４の出力信号
によって第一の開閉弁９を閉じ、第二の開閉弁１１を開
く。この時、冷媒量調節容器１２内の冷媒は気液二相の
状態であるので、第二の開閉弁１１を開けば、冷媒量調
節容器１２．内の冷媒ｉｄ凝縮器２出口の冷媒の状態（
過冷却液）に近づくように状態変化する。すなわち、冷
媒量調節容器１２内の気液二相状態の液相部分が漸次増
えるため、冷媒量調節容器１２内に含まれる冷媒量は増
加し、それに対して、循環冷媒量は漸次減少する。この
ようにして、過冷却度Ｓ 、ｄ；（１）式で示される範
囲（最適な循環冷媒量）になれば、第二の開閉弁１１を
閉じる。Further, a case where the degree of supercooling S is 82 or more will be explained. In this case, the amount of circulating refrigerant will be greater than the optimal amount of circulating refrigerant. Therefore, the first on-off valve 9 is closed and the second on-off valve 11 is opened by the output signal of the control device 14. At this time, the refrigerant in the refrigerant amount adjustment container 12 is in a gas-liquid two-phase state, so if the second on-off valve 11 is opened, the refrigerant in the refrigerant amount adjustment container 12. refrigerant ID status of refrigerant at condenser 2 outlet (
The state changes so that it approaches supercooled liquid). That is, since the liquid phase portion in the gas-liquid two-phase state in the refrigerant amount adjustment container 12 gradually increases, the amount of refrigerant contained in the refrigerant amount adjustment container 12 increases, whereas the amount of circulating refrigerant gradually decreases. In this way, when the degree of supercooling S, d reaches the range shown by equation (1) (optimum amount of circulating refrigerant), the second on-off valve 11 is closed.
上述のように凝縮器２出口の冷媒の過冷却度を検出する
ことによって、循環冷媒量の過不足を判断し、循環冷媒
量が不足しているときには、第一の開閉弁９と第二の開
閉弁１１とを開き、過充填のときには第一の開閉弁９を
閉じ、第二の開閉弁１１を開くことによって、自動的に
冷媒量調節容器１２内の冷媒量か増減し、常に冷媒主回
路中には最適な量の冷媒が循環するという効果がある。As mentioned above, by detecting the degree of subcooling of the refrigerant at the outlet of the condenser 2, it is possible to judge whether the amount of circulating refrigerant is excessive or insufficient, and when the amount of circulating refrigerant is insufficient, the first on-off valve 9 and the second By opening the on-off valve 11, closing the first on-off valve 9 when overfilling, and opening the second on-off valve 11, the amount of refrigerant in the refrigerant amount adjustment container 12 is automatically increased or decreased, and the refrigerant is always the main This has the effect of circulating an optimal amount of refrigerant in the circuit.
発明の効果
以上のように本発明の太陽熱利用温水装置によれば次の
効果が得られる。Effects of the Invention As described above, the solar water heating device of the present invention provides the following effects.
（１）冷媒量調節容器が最適な循環冷媒量となるように
制御するので、従来の冷媒回路ではよく生じていた過充
填時の圧縮機への液もどりゃ冷媒不足時の圧縮機モータ
巻線温度と昇を防ぐことができ、太陽熱利用温水装置の
寿命・信頼性の向丑という効果がある。(1) Since the refrigerant amount adjustment container controls the amount of circulating refrigerant to be optimal, the compressor motor winding temperature when the compressor is overfilled and the compressor is short of refrigerant, which often occurs in conventional refrigerant circuits. This has the effect of increasing the lifespan and reliability of solar water heating equipment.
（匂 同様に最適な循環量となるように＊ＪａＩするの
で、常に最適な冷凍サイクルとなり、太陽熱利用温水装
置の年間を通じての効率向上という効果がある。(Smell) Similarly, since *JaI is adjusted to achieve the optimum circulation rate, the refrigeration cycle is always optimal, which has the effect of improving the efficiency of solar water heating equipment throughout the year.
第１図は本発明の一実施例を示す太陽熱利用温水装置の
構成図、第２図は従来の太陽熱利用温水装置を示す構成
図である。
１・・・・・・圧縮機、２・・・・・・凝縮器、３・・
・・・・減圧装置、４・・・・・・集熱器、８・・・・
・・吐出管、９・・団・第一の開閉弁、１０・・・・・
・分岐管、１１・・・・・・第二の開閉弁、１２・・・
・・・冷媒量調節容器、１３・・・・・・過冷却度検出
手段、１４・・・・・・制御装置。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図FIG. 1 is a block diagram of a solar water heating system according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional solar water heating system. 1... Compressor, 2... Condenser, 3...
... Pressure reduction device, 4 ... Heat collector, 8 ...
...Discharge pipe, 9...Group, first on-off valve, 10...
- Branch pipe, 11... Second on-off valve, 12...
. . . Refrigerant amount adjustment container, 13 . . . Supercooling degree detection means, 14 . . . Control device. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2
Claims (1)
る集熱器を順次連結して成る冷媒主回路で、前記圧縮機
と前記凝縮器とを連結する吐出管に並列に第一の開閉弁
を具備した分岐管を設け、前記凝縮器と前記減圧装置と
の間に前記分岐管と熱交換的関係を持ち第二の開閉弁を
具備した冷媒量調節容器を設け、前記凝縮器の出口冷媒
の過冷却度を検出する過冷却度検出手段の出力に応じて
制御する制御装置と、前記制御装置の出力で制御する前
記第一の開閉弁と前記第二の開閉弁と前記冷媒量調節容
器とからなる冷媒制御装置を配設した太陽熱利用温水装
置。A refrigerant main circuit consisting of a compressor, a condenser, a pressure reducing device, and a heat collector for collecting solar heat and atmospheric heat, which are connected in sequence, and a first refrigerant circuit is connected in parallel to a discharge pipe connecting the compressor and the condenser. A branch pipe equipped with an on-off valve is provided, and a refrigerant amount regulating container having a heat exchange relationship with the branch pipe and equipped with a second on-off valve is provided between the condenser and the pressure reducing device, A control device that controls according to the output of a degree of supercooling detection means that detects the degree of supercooling of the outlet refrigerant, the first on-off valve and the second on-off valve that are controlled by the output of the control device, and the amount of refrigerant. A solar heat water heating system equipped with a refrigerant control device consisting of a regulating container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60049013A JPS61208472A (en) | 1985-03-12 | 1985-03-12 | Solar-heat utilizing water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60049013A JPS61208472A (en) | 1985-03-12 | 1985-03-12 | Solar-heat utilizing water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61208472A true JPS61208472A (en) | 1986-09-16 |
Family
ID=12819255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60049013A Pending JPS61208472A (en) | 1985-03-12 | 1985-03-12 | Solar-heat utilizing water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61208472A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010197030A (en) * | 2008-12-11 | 2010-09-09 | Takasago Thermal Eng Co Ltd | Heat pump hot water supply system utilizing solar heat |
| WO2015056635A1 (en) * | 2013-10-17 | 2015-04-23 | 日立アプライアンス株式会社 | Air conditioner |
| JP6887068B1 (en) * | 2020-03-10 | 2021-06-16 | Ａｔｓジャパン株式会社 | Refrigerant control system and cooling system |
-
1985
- 1985-03-12 JP JP60049013A patent/JPS61208472A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010197030A (en) * | 2008-12-11 | 2010-09-09 | Takasago Thermal Eng Co Ltd | Heat pump hot water supply system utilizing solar heat |
| WO2015056635A1 (en) * | 2013-10-17 | 2015-04-23 | 日立アプライアンス株式会社 | Air conditioner |
| JP2015078792A (en) * | 2013-10-17 | 2015-04-23 | 日立アプライアンス株式会社 | Air conditioning device |
| JP6887068B1 (en) * | 2020-03-10 | 2021-06-16 | Ａｔｓジャパン株式会社 | Refrigerant control system and cooling system |
| WO2021181513A1 (en) * | 2020-03-10 | 2021-09-16 | Ａｔｓジャパン株式会社 | Refrigerant control system and refrigeration system |
| KR20210116410A (en) * | 2020-03-10 | 2021-09-27 | 에이티에스 저팬 가부시키가이샤 | Refrigerant control system and cooling system |
| CN113646599A (en) * | 2020-03-10 | 2021-11-12 | Ats日本株式会社 | Refrigerant control system and cooling system |
| US11268741B2 (en) | 2020-03-10 | 2022-03-08 | Ats Japan Co., Ltd. | Refrigerant control system and cooling system |
| CN113646599B (en) * | 2020-03-10 | 2022-06-17 | Ats日本株式会社 | Refrigerant control system and cooling system |
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