JPS60181549A - Hot-water supplier utilizing solar heat - Google Patents
Hot-water supplier utilizing solar heatInfo
- Publication number
- JPS60181549A JPS60181549A JP59036621A JP3662184A JPS60181549A JP S60181549 A JPS60181549 A JP S60181549A JP 59036621 A JP59036621 A JP 59036621A JP 3662184 A JP3662184 A JP 3662184A JP S60181549 A JPS60181549 A JP S60181549A
- Authority
- JP
- Japan
- Prior art keywords
- water
- compressor
- valve
- heat
- defrosting
- 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
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
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は太陽熱および大気熱をヒートポンプサイクルを
用いて集熱する給湯装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water heater that collects solar heat and atmospheric heat using a heat pump cycle.
従来例の構成とその問題点
第1図はヒートポンプサイクルを太陽熱および大気熱か
ら集熱する太陽熱利用給湯装置の従来例を示したもので
、圧縮機1、給水加熱凝縮器2、膨張装置3、集熱器4
、アキュムレータ5を順次冷媒配管6で連結した密閉さ
れた集熱回路と、貯湯槽7、循環ポンプ8、給水加熱凝
縮器2の水通路を順次水配管9で連結した給水加熱回路
と、貯湯槽7に接続された給水管10、減圧逆止弁11
、出湯管12、安全弁13から成るものである。Structure of conventional example and its problems Figure 1 shows a conventional example of a solar hot water supply system that uses a heat pump cycle to collect heat from solar heat and atmospheric heat. Heat collector 4
, a sealed heat collection circuit in which the accumulators 5 are sequentially connected by refrigerant piping 6, a water supply heating circuit in which the water passages of the hot water storage tank 7, circulation pump 8, and feed water heating condenser 2 are sequentially connected by water piping 9, and a hot water storage tank. Water supply pipe 10 connected to 7, pressure reducing check valve 11
, a hot water outlet pipe 12, and a safety valve 13.
この給湯機において、冬期の特に厳寒期では集熱運転時
に集熱器4に着霜を生じ、着霜の進行とともに集熱効率
が大巾に低下し、ついには集熱運転不可能となる問題が
あった。In this water heater, there is a problem in which frost forms on the heat collector 4 during heat collection operation during particularly cold winter months, and as the frost progresses, the heat collection efficiency decreases drastically, and eventually heat collection operation becomes impossible. there were.
発明の目的
本発明は以上のような従来例の問題点を解消し運転可能
期間を厳寒期まで拡大することを目的とする。OBJECTS OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the conventional example and to extend the operable period to the severe cold season.
発明の構成
本発明は圧縮機、流路切換弁、給水加熱凝縮器、膨張装
置、集熱器、アキュムレータを順次連結し、さらに上記
膨張装置には開閉弁を有するバイパス回路を設けた集熱
回路と、貯湯槽、循環ポンプ、前記給水加熱凝縮器の水
通路を順次連結した給水加熱回路とにより構成し、圧縮
機、循環ポンプの運転と開閉弁の閉成により集熱運転し
、集熱器への着霜時には流路切換弁の切換とともに圧縮
機、循環ポンプの運転と、開閉弁の開成により除霜運転
を行ない、循環水温度が所定値以下になった項第2図、
第3図に本発明の一実施例を示す。なお、従来例と同一
の部材は同一番号を符し、説明は省略する。14は流路
切換弁、15は膨張装置3に並設された開閉弁16を有
するバイパス回路で・ある。この実施例では開閉弁16
に逆止弁を使用した場合を示している。17は着霜除霜
検知センサー、18は給水加熱凝縮器2の水通路出口側
に設けた水温センサーである。Structure of the Invention The present invention provides a heat collection circuit in which a compressor, a flow path switching valve, a feed water heating condenser, an expansion device, a heat collector, and an accumulator are sequentially connected, and the expansion device is further provided with a bypass circuit having an on-off valve. It consists of a hot water storage tank, a circulation pump, and a water supply heating circuit that sequentially connects the water passages of the water supply heating condenser. When frost forms on the water, defrost operation is performed by switching the flow path switching valve, operating the compressor and circulation pump, and opening the on-off valve.
FIG. 3 shows an embodiment of the present invention. Note that the same members as those in the conventional example are designated by the same numbers, and explanations thereof will be omitted. 14 is a flow path switching valve, and 15 is a bypass circuit having an on-off valve 16 arranged in parallel with the expansion device 3. In this embodiment, the on-off valve 16
This shows the case where a check valve is used. 17 is a frosting/defrosting detection sensor, and 18 is a water temperature sensor provided on the water passage outlet side of the feed water heating condenser 2.
この給湯機の動作を次に説明する。第2図は集熱運転状
態を示したもので、圧縮機1から吐出された高圧高温の
ガス冷媒が給水加熱凝縮器2で熱的に連結された水通路
を通る給水に放熱して凝縮液化し、膨張装置3により減
圧され低圧低温となって集熱器4に入り、ここで太陽熱
お、よび大気熱より集熱して蒸発気化し、流路切換弁1
4を通ってアキュムレータ5より圧縮機1に吸入される
ヒートポンプサイクルを繰返す。一方、水は循環ポンプ
8の運転により貯湯槽7から給水加熱凝縮器2の水通路
を通過して昇温され貯湯槽7に戻るサイクルを繰返し高
温に沸上げられる。The operation of this water heater will be explained next. Figure 2 shows the heat collection operation state, in which the high-pressure, high-temperature gas refrigerant discharged from the compressor 1 radiates heat to the feed water passing through a thermally connected water passage in the feed water heating condenser 2, condensing and liquefying it. Then, the pressure is reduced by the expansion device 3 and the temperature becomes low and low temperature, which enters the heat collector 4, where it collects heat from the sun and the atmosphere and evaporates, and the flow path switching valve 1
4, the heat pump is sucked into the compressor 1 from the accumulator 5, and the cycle is repeated. On the other hand, water passes from the hot water storage tank 7 through the water passage of the feed water heating condenser 2, is heated by the operation of the circulation pump 8, is heated, and returns to the hot water storage tank 7, and is repeatedly boiled to a high temperature.
この給湯装置を冬期の特に厳寒期に集熱運転を行なうと
、大気中の水分が集熱器4に凍結付着する着霜現象が発
生する。この霜が集熱運転の続行によって成長して熱抵
抗となり、集熱効率が大巾に低下するようになる。この
状態になると集熱器4に付着した霜を溶かすための除霜
運転が必要となる。第3図は除fa Nr k状態を示
したもので、以下第3商で説明する。M霜除霜検知セン
サー17で着霜の進行を検知すると、圧縮機1、循環ポ
ンプ8を運転したまま流路切換弁14を動作させ、圧縮
機1からの高温ガス冷媒を集熱器4に送り込み霜を融解
除去する。この実施例では開閉弁16に逆止弁を使用す
るため、冷媒の逆サイクル流れにより自動的に開成され
、冷媒は膨張装置3のバイパス回路16を通って給水加
熱凝縮器2に流入し、循環水から吸熱して蒸発気化して
圧縮機1に戻る。When this water heater is operated to collect heat during winter, particularly during the cold season, a frosting phenomenon occurs in which moisture in the atmosphere freezes and adheres to the heat collector 4. As the heat collection operation continues, this frost grows and becomes a thermal resistance, which significantly reduces the heat collection efficiency. In this state, a defrosting operation is required to melt the frost adhering to the heat collector 4. FIG. 3 shows a state excluding fa Nr k, which will be explained below using the third quotient. When the M-defrost detection sensor 17 detects the progress of frost formation, the flow path switching valve 14 is operated while the compressor 1 and the circulation pump 8 are still operating, and the high-temperature gas refrigerant from the compressor 1 is transferred to the heat collector 4. Delivered to melt and remove frost. In this embodiment, a check valve is used as the on-off valve 16, so it is automatically opened by the reverse cycle flow of the refrigerant, and the refrigerant flows into the feed water heating condenser 2 through the bypass circuit 16 of the expansion device 3, and is circulated. It absorbs heat from the water, evaporates it, and returns to the compressor 1.
この除霜運転は集熱運転で昇温された湯の熱量の一部を
熱源としているので、極めて短時間で除霜完了するっこ
の除霜完了は着霜・除霜検知センサー17の温度上昇に
より検知して除霜を終了する。ところが貯湯槽7内の水
温が非常に低い場合除霜運転でさらに水温低下して、給
水加熱凝縮器2の水通路出口に設けた水温センサー18
が所定値以下を検知すると除霜運転を停止させる。これ
によって水の凍結事故を防止し、機器の損傷防止を図る
ものである。This defrosting operation uses a part of the heat of the hot water raised in the heat collection operation as a heat source, so the defrosting is completed in an extremely short time. Defrosting is finished when detected. However, if the water temperature in the hot water storage tank 7 is very low, the water temperature will drop further during the defrosting operation, causing the water temperature sensor 18 installed at the water passage outlet of the feed water heating condenser 2 to drop.
When the temperature is detected to be below a predetermined value, the defrosting operation is stopped. This prevents water from freezing and prevents equipment damage.
発明の効果
(1)集熱運転で昇温した貯湯槽内の温水の一部を除霜
熱源とするので、極めて短時間で除霜完了ができる。Effects of the invention (1) Since a portion of the hot water in the hot water storage tank whose temperature has been raised during the heat collection operation is used as a defrosting heat source, defrosting can be completed in an extremely short time.
(2)除霜運転時間が短いので、集熱運転−間を長くで
き、集熱量が増加する。(2) Since the defrosting operation time is short, the heat collection operation time can be lengthened, and the amount of heat collection increases.
(3)循環水温度の異常低下を防止するため凍結事故が
防止でき、機器の信頼性が向上する。(3) Freezing accidents can be prevented by preventing abnormal drops in circulating water temperature, improving equipment reliability.
第1図はヒートポンプサイクルを利用した従来の太陽熱
利用給湯装置の構成図、第2図は本発明の太陽熱利用給
湯装置のシステム構成図で集熱運転時を示し、第3図は
同システム構成図で除霜運転時を示す。
1・・・・・・圧縮機、2・・・・・・給水加熱凝縮器
、3・・・・・・膨張装置、4・・・・・・集熱器、5
・・・・・・アキュムレータ、7・・・・・・貯湯槽、
8・・・・・・循環ポンプ、14・・・・・・流路切換
弁、15・・・・・・バイパス回路、16・・・・・・
開閉弁、17・・・・・・着霜除霜検知センサー、18
・・・・・・水温センサー。
代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図
第2図Figure 1 is a configuration diagram of a conventional solar hot water supply system using a heat pump cycle, Figure 2 is a system configuration diagram of the solar water supply system of the present invention during heat collecting operation, and Figure 3 is a system configuration diagram of the same system. indicates the time of defrosting operation. 1... Compressor, 2... Feed water heating condenser, 3... Expansion device, 4... Heat collector, 5
...Accumulator, 7...Hot water storage tank,
8...Circulation pump, 14...Flow path switching valve, 15...Bypass circuit, 16...
Opening/closing valve, 17... Defrosting/defrosting detection sensor, 18
...Water temperature sensor. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2
Claims (2)
、集熱器、アキュムレータを順次連結し、さらに上記膨
張装置には開閉弁を有するバイパス回路を設けた集熱回
路と、貯湯槽、循環ポンプ、前記給水加熱凝縮器の水通
路を順次連結した給水加熱回路とにより構成し、圧縮機
、循環ポンプの運転と、開閉弁の閉成により集熱運転し
、集熱器への着霜時は流路切換弁の切換とともに圧縮機
・循環ポンプの運転と、開閉弁の開成により除霜運転を
行ない、循環水温度が所定値以下になった場合は除霜運
転を停止するよう構成した太陽熱利用給湯装置。(1) A compressor, a flow path switching valve, a feed water heating condenser, an expansion device, a heat collector, and an accumulator are connected in sequence, and the expansion device is further equipped with a heat collection circuit provided with a bypass circuit having an on-off valve, and a hot water storage circuit. It consists of a tank, a circulation pump, and a feed water heating circuit that sequentially connects the water passages of the feed water heating condenser. Heat is collected by operating the compressor and circulation pump and closing the on-off valve, and the water is transferred to the collector. When frost forms, defrost operation is performed by switching the flow path switching valve, operating the compressor and circulation pump, and opening the on-off valve.If the circulating water temperature falls below a predetermined value, defrost operation is stopped. A constructed solar heat water heating system.
知する特許請求の範囲第1項記載の太陽熱利用給湯装置
。(2) The solar water heating system according to claim 1, wherein the temperature of the circulating water is detected on the water passage outlet side of the water supply heating condenser.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59036621A JPS60181549A (en) | 1984-02-28 | 1984-02-28 | Hot-water supplier utilizing solar heat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59036621A JPS60181549A (en) | 1984-02-28 | 1984-02-28 | Hot-water supplier utilizing solar heat |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60181549A true JPS60181549A (en) | 1985-09-17 |
Family
ID=12474874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59036621A Pending JPS60181549A (en) | 1984-02-28 | 1984-02-28 | Hot-water supplier utilizing solar heat |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60181549A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2527341A (en) * | 2014-06-19 | 2015-12-23 | Flint Engineering Ltd | Heating system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5784938A (en) * | 1980-11-17 | 1982-05-27 | Mitsubishi Electric Corp | Hot water feeding apparatus |
-
1984
- 1984-02-28 JP JP59036621A patent/JPS60181549A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5784938A (en) * | 1980-11-17 | 1982-05-27 | Mitsubishi Electric Corp | Hot water feeding apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2527341A (en) * | 2014-06-19 | 2015-12-23 | Flint Engineering Ltd | Heating system |
GB2527341B (en) * | 2014-06-19 | 2016-05-18 | Flint Eng Ltd | System including heat exchange panel |
US10253990B2 (en) | 2014-06-19 | 2019-04-09 | Flint Engineering Ltd. | Heating system |
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