JPS6355620B2 - - Google Patents
Info
- Publication number
- JPS6355620B2 JPS6355620B2 JP14576582A JP14576582A JPS6355620B2 JP S6355620 B2 JPS6355620 B2 JP S6355620B2 JP 14576582 A JP14576582 A JP 14576582A JP 14576582 A JP14576582 A JP 14576582A JP S6355620 B2 JPS6355620 B2 JP S6355620B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- heat
- heat exchanger
- solar
- refrigerant
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 80
- 239000003507 refrigerant Substances 0.000 claims description 30
- 230000000694 effects Effects 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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)
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給湯機において特に太陽
熱利用システムに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a solar heat utilization system in particular in a heat pump water heater.
従来例の構成とその問題点
従来のこの種のヒートポンプ給湯機としては、
空気熱源によるもの、あるいは空気熱源に付加
し、太陽熱コレクターで得た温水を熱源にしてヒ
ートポンプを補助するシステム、あるいは太陽熱
コレクター自体をヒートポンプの蒸発器として構
成した直膨型コレクターによるシステム等が提案
されている。これら従来方式において、空気熱源
によるヒートポンプ給湯機は外気より吸熱してヒ
ートアツプするものであるからヒートポンプの蒸
発器温度を外気温度以上で運転することは不可能
であるから、外気温度、エンタルピーでヒートポ
ンプのCOPに限界があり、当然省エネルギ効果
にも限度がある。Conventional configuration and its problems As a conventional heat pump water heater of this type,
Systems that use an air heat source, systems that supplement a heat pump by using hot water obtained from a solar collector as a heat source in addition to an air heat source, or systems that use a direct expansion type collector in which the solar collector itself is configured as an evaporator for the heat pump have been proposed. ing. In these conventional methods, heat pump water heaters using an air heat source absorb heat from the outside air and heat up, so it is impossible to operate the heat pump's evaporator temperature above the outside air temperature. There are limits to COP, and naturally there are limits to energy saving effects.
又、上記空気熱源方式に付加して太陽熱コレク
ターで得た温水を熱源にするシステムにおいては
空気熱源のみに比べて日射時の蒸発温度上昇に併
うヒートポンプのCOPの向上とこれによる省エ
ネルギ効果は期待できるが、太陽熱の集熱構成の
ために別途に温水循環用のポンプ、水配管、ヒー
トポンプとの熱交換器等の設備の増大と冬期の循
環水系の凍結防止保証、さらに集熱回路とヒート
ポンプ系の相互運転制御の複雑さがあり、実用の
域に達していない。 In addition, in addition to the air heat source method described above, in a system that uses hot water obtained from a solar collector as a heat source, the COP of the heat pump increases as the evaporation temperature increases during solar radiation compared to an air heat source alone, and the energy saving effect due to this increases. Although this is promising, in order to collect solar heat, additional equipment such as pumps for hot water circulation, water piping, and heat exchangers with the heat pump must be added, guarantee that the circulating water system will not freeze in winter, and a heat collection circuit and heat pump. Due to the complexity of system mutual operation control, it has not reached the level of practical use.
又、太陽熱コレクターをヒートポンプの蒸発器
とする直膨型コレクター方式の場合は、コレクタ
ーが直接ヒートポンプの蒸発器を構成しているの
で日射時には蒸発温度が上昇し、これに伴なうヒ
ートポンプのCOPの向上と省エネルギ効果は空
気熱源方式に比べて期待出来る。又コレクターへ
の循環はヒートポンプ冷媒回路そのものであるか
ら簡単である。しかし、直膨型コレクター方式
は、コレクターでの冷媒蒸発集熱自体がヒートポ
ンプ運転であるために、単に太陽熱集熱単独機能
運転にもかかわらず圧縮機の運転を要しているの
で、いかなる日射時でも圧縮機動力を除去するこ
とは出来ないと共に、日射のない場合におけるヒ
ートポンプ運転をどうするのか、湯温の確保をい
かにするかの問題がある。 In addition, in the case of a direct expansion type collector system in which the solar collector is used as the evaporator of the heat pump, the collector directly constitutes the evaporator of the heat pump, so the evaporation temperature increases during solar radiation, and the COP of the heat pump increases accordingly. Improvements and energy saving effects can be expected compared to air heat source systems. In addition, circulation to the collector is simple because it is the heat pump refrigerant circuit itself. However, in the direct expansion type collector system, since the refrigerant evaporation and heat collection in the collector itself is a heat pump operation, the compressor operation is required even though the solar heat collection function is solely operated. However, it is not possible to remove the compressor power, and there are also problems with how to operate the heat pump in the absence of sunlight and how to ensure the temperature of the hot water.
以上の様にヒートポンプ給湯機の従来構成には
種々あるが、いずれにおいても実用域に達するに
は問題を有していた。 As mentioned above, there are various conventional configurations of heat pump water heaters, but all of them have had problems before they can be put into practical use.
発明の目的
本発明はかかる従来の問題を解消するもので、
空気熱源ヒートポンプ給湯機の冷媒回路を利用し
て太陽熱集熱回路を構成し、簡単なシステム構成
で省エネルギ効果を得ることを目的とするもので
ある。Purpose of the invention The present invention solves such conventional problems,
The purpose of this project is to construct a solar heat collection circuit using the refrigerant circuit of an air-source heat pump water heater, and to obtain an energy-saving effect with a simple system configuration.
発明の構成
この目的を達成するために本発明は、ヒートポ
ンプの凝縮器を第１温水熱交換器と第２温水熱交
換器の２分割にて構成すると共に、前記第１温水
熱交換器の出口側に弁を設け、太陽熱コレクター
へ循環した後に第２温水熱交換器へ流す冷媒回路
と、第２温水熱交換器へ直接流す冷媒回路とを切
換える様にしたものである。Structure of the Invention In order to achieve this object, the present invention configures a condenser of a heat pump into two parts, a first hot water heat exchanger and a second hot water heat exchanger, and an outlet of the first hot water heat exchanger. A valve is provided on the side to switch between a refrigerant circuit that circulates to the solar heat collector and then flows to the second hot water heat exchanger, and a refrigerant circuit that flows directly to the second hot water heat exchanger.
この構成によつて、ヒートポンプの圧縮機から
先ず第１温水熱交換器へ流入した冷媒は、凝縮液
化し水を加熱する。この時水温より太陽熱コレク
ターの温度が高い場合には弁の動作により第１温
水熱交換器の冷媒は太陽熱コレクターへ循環す
る。太陽熱コレクターで冷媒液は加熱され蒸発し
た後に第２温水熱交換器で再度凝縮液化し水を加
熱することにより、ヒートポンプの圧縮機からの
冷媒凝縮による水加熱と、同一冷媒の循環による
太陽熱コレクターからの冷媒凝縮による水加熱の
２重加熱作用効果を有することになる。 With this configuration, the refrigerant that first flows into the first hot water heat exchanger from the compressor of the heat pump is condensed and liquefied to heat the water. At this time, if the temperature of the solar heat collector is higher than the water temperature, the refrigerant of the first hot water heat exchanger is circulated to the solar heat collector by the operation of the valve. The refrigerant liquid is heated and evaporated in the solar heat collector, and then condensed and liquefied again in the second hot water heat exchanger to heat the water. This heats the water by condensing the refrigerant from the heat pump compressor, and from the solar heat collector by circulating the same refrigerant. It has a double heating effect of water heating due to refrigerant condensation.
実施例の説明
以下、本発明の実施例を第１図を用いて説明す
る。第１図において１は圧縮機、２は第１温水熱
交換器、３は第１温水熱交換器２の出口側に設け
た冷媒流路を切換える弁、４は太陽熱コレクタ
ー、５は第２の温水熱交換器、６は減圧機構、７
は蒸発器、８は室外フアン、９はアキユムレータ
である。又、１０は貯湯槽、１１は給水管、１２
は給湯管である。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIG. In Fig. 1, 1 is a compressor, 2 is a first hot water heat exchanger, 3 is a valve for switching the refrigerant flow path provided on the outlet side of the first hot water heat exchanger 2, 4 is a solar heat collector, and 5 is a second hot water heat exchanger. Hot water heat exchanger, 6 is a pressure reduction mechanism, 7
is an evaporator, 8 is an outdoor fan, and 9 is an accumulator. Also, 10 is a hot water tank, 11 is a water supply pipe, 12
is a hot water pipe.
以上の構成において本発明の特徴とするところ
は、ヒートポンプの凝縮器として第１温水熱交換
器２と第２温水熱交換器５との２分割にて構成す
ると共に、前記第１温水熱交換器２の出口側に弁
３を設け、第１温水熱交換器２から出た冷媒を太
陽熱コレクター４へ循環した後に第２温水熱交換
器５へ流す冷媒回路と、第１温水熱交換器２から
第２温水熱交換器５へ直接流す冷媒回路とを切換
える様にしたことにある。 In the above configuration, the present invention is characterized in that the condenser of the heat pump is divided into two parts, the first hot water heat exchanger 2 and the second hot water heat exchanger 5, and the first hot water heat exchanger A valve 3 is provided on the outlet side of the first hot water heat exchanger 2, and the refrigerant circuit circulates the refrigerant from the first hot water heat exchanger 2 to the solar collector 4 and then flows to the second hot water heat exchanger 5, and from the first hot water heat exchanger 2. This is because the refrigerant circuit that flows directly to the second hot water heat exchanger 5 is switched.
上記構成においてヒートポンプの運転動作は次
の様になる。 In the above configuration, the operation of the heat pump is as follows.
圧縮機１を出た冷媒は先ず第１温水熱交換器２
で凝縮液化し水を加熱する。この時、太陽熱コレ
クター４の温度が貯湯槽１０の水温より高い場合
には、弁３の動作により冷媒は弁３から太陽熱コ
レクター４へ循環し、太陽熱により加熱されて蒸
発した後に弁３から第２温水熱交換器５へ流入し
再度凝縮液化し水を加熱する。第２温水熱交換器
５から出た冷媒は、減圧機構６から蒸発器７、ア
キユムレータ９そして圧縮機１へ循環サイクルを
行なうものである。 The refrigerant that exits the compressor 1 first passes through the first hot water heat exchanger 2.
It condenses into a liquid and heats the water. At this time, if the temperature of the solar heat collector 4 is higher than the water temperature of the hot water storage tank 10, the refrigerant is circulated from the valve 3 to the solar heat collector 4 by the operation of the valve 3, and after being heated by solar heat and evaporated, it passes from the valve 3 to the second refrigerant. The water flows into the hot water heat exchanger 5 and is condensed and liquefied again to heat the water. The refrigerant discharged from the second hot water heat exchanger 5 undergoes a circulation cycle from the pressure reducing mechanism 6 to the evaporator 7, the accumulator 9, and the compressor 1.
なお、弁３の動作により、第１温水熱交換器２
から弁３を介して第２温水熱交換器５へ直接流れ
る場合には、圧縮機１から出た冷媒は第１温水熱
交換器２、第２温水熱交換器５にわたり凝縮液化
し水を加熱することとなる。 Note that due to the operation of the valve 3, the first hot water heat exchanger 2
When the refrigerant flows directly from the compressor 1 to the second hot water heat exchanger 5 via the valve 3, the refrigerant passes through the first hot water heat exchanger 2 and the second hot water heat exchanger 5, condenses and liquefies, and heats the water. I will do it.
この様に蒸発器７での空気熱源と、太陽熱コレ
クター４での太陽熱集熱から成るヒートポンブ運
転で加熱された貯湯槽１０の温水は、給湯管１１
より出湯される。この時、給水管１２より貯湯槽
１０は給水される。 In this way, the hot water in the hot water storage tank 10 heated by the heat pump operation consisting of the air heat source in the evaporator 7 and the solar heat collection in the solar heat collector 4 is transferred to the hot water supply pipe 11.
The hot water is poured out from the bath. At this time, water is supplied to the hot water tank 10 from the water supply pipe 12.
発明の効果
以上の様な本発明のヒートポンプ給湯機によれ
ば次の様な効果が得られる。Effects of the Invention According to the heat pump water heater of the present invention as described above, the following effects can be obtained.
(1) ヒートポンプの凝縮器を第１温水熱交換器と
第２温水熱交換器の２分割にて構成すると共
に、前記第１温水熱交換器の出口側に弁を設け
て、太陽熱コレクターへ循環した後に第２温水
熱交換器へ流す冷媒回路と、第２温水熱交換器
へ直接流す冷媒回路とを切換える様にしている
ので、圧縮機からの冷媒を第１温水熱交換器で
凝縮液化させた後に、太陽熱コレクターで集熱
蒸発させ、第２温水熱交換器で再凝縮液化させ
る２重冷媒凝縮水加熱作用により、空気熱源利
用と太陽熱集熱利用で加熱能力とCOPの向上
効果が得られる。(1) Construct the condenser of the heat pump into two parts, a first hot water heat exchanger and a second hot water heat exchanger, and provide a valve on the outlet side of the first hot water heat exchanger to circulate the heat to the solar collector. After that, the refrigerant circuit is switched between the refrigerant circuit that flows to the second hot water heat exchanger and the refrigerant circuit that flows directly to the second hot water heat exchanger, so that the refrigerant from the compressor is condensed and liquefied in the first hot water heat exchanger. After that, the solar heat collector collects and evaporates the heat, and the second hot water heat exchanger recondenses and liquefies it. Due to the double refrigerant condensed water heating effect, heating capacity and COP can be improved by using air heat source and solar heat collection. .
(2) 太陽熱コレクターへの集熱系はヒートポンプ
の冷媒循環系路の中で構成しているので集熱循
環のためのポンプ能力が不要になり省エネルギ
ー効果が大であると共に、水集熱循環方式の様
な凍結の問題も除去することが出来る。(2) Since the heat collection system for the solar heat collector is configured within the refrigerant circulation system of the heat pump, pumping capacity for heat collection and circulation is not required, resulting in a large energy-saving effect and a water heat collection and circulation system. Freezing problems such as this can also be eliminated.
(3) 同一のヒートポンプ冷媒循環サイクルの中で
太陽熱の集熱と空気熱源の利用が出来るので、
日射の有無・強弱による給湯温水の高低への影
響が少なく常に安定した給湯を得られる効果が
ある。(3) Solar heat collection and air heat source can be used in the same heat pump refrigerant circulation cycle;
There is little effect on the level of hot water supply due to the presence/absence and strength of solar radiation, resulting in stable hot water supply at all times.
図面は本発明によるヒートポンプ給湯機の構成
図である。
１……圧縮機、２……第１温水熱交換器、３…
…弁、４……太陽熱コレクタ、５……第２温水熱
交換器、６……減圧機構、７……蒸発器。
The drawing is a configuration diagram of a heat pump water heater according to the present invention. 1... Compressor, 2... First hot water heat exchanger, 3...
... Valve, 4 ... Solar collector, 5 ... Second hot water heat exchanger, 6 ... Pressure reduction mechanism, 7 ... Evaporator.
Claims (1)
第２温水熱交換器の２分割にて構成すると共に、
前記第１温水熱交換器の出口側に弁を設け、太陽
熱コレクターへ循環した後に第２温水熱交換器へ
流す冷媒回路と、第２温水熱交換器へ直接流す冷
媒回路とを切換えるヒートポンプ給湯機。1 The condenser of the heat pump is configured into two parts, a first hot water heat exchanger and a second hot water heat exchanger, and
A heat pump water heater in which a valve is provided on the outlet side of the first hot water heat exchanger to switch between a refrigerant circuit that circulates to the solar heat collector and then flows to the second hot water heat exchanger, and a refrigerant circuit that flows directly to the second hot water heat exchanger. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57145765A JPS5935755A (en) | 1982-08-23 | 1982-08-23 | Heat pump type hot-water supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57145765A JPS5935755A (en) | 1982-08-23 | 1982-08-23 | Heat pump type hot-water supply apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5935755A JPS5935755A (en) | 1984-02-27 |
| JPS6355620B2 true JPS6355620B2 (en) | 1988-11-02 |
Family
ID=15392637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57145765A Granted JPS5935755A (en) | 1982-08-23 | 1982-08-23 | Heat pump type hot-water supply apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5935755A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383473C (en) * | 2006-06-01 | 2008-04-23 | 上海交通大学 | Solar-auxiliary-driven cold-heat combined generator |
| CN100432547C (en) * | 2006-11-03 | 2008-11-12 | 江苏大学 | Solar energy-ground source united heat supply, hot water supply, power supply and refrigerating system and its operation method |
| CN102679566B (en) * | 2012-05-22 | 2013-11-06 | 江苏乐普四方科技有限公司 | Water boiler for heating by utilizing solar energy and heat pump and heating method of water boiler |
| CN104748419A (en) * | 2015-04-09 | 2015-07-01 | 华北理工大学 | Cooling water removing device for pipeline of solar water heater |
-
1982
- 1982-08-23 JP JP57145765A patent/JPS5935755A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5935755A (en) | 1984-02-27 |
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