JPS6222380B2 - - Google Patents
Info
- Publication number
- JPS6222380B2 JPS6222380B2 JP407482A JP407482A JPS6222380B2 JP S6222380 B2 JPS6222380 B2 JP S6222380B2 JP 407482 A JP407482 A JP 407482A JP 407482 A JP407482 A JP 407482A JP S6222380 B2 JPS6222380 B2 JP S6222380B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- heat pump
- condenser
- auxiliary heater
- temperature
- 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 68
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000003507 refrigerant 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
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1054—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/335—Control of pumps, e.g. on-off control
- F24H15/34—Control of the speed of pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
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】
本発明はヒートポンプと補助加熱器を用いた給
湯装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a water heater using a heat pump and an auxiliary heater.
従来からヒートポンプ給湯機の問題点として
は、ヒートポンプの加熱能力低下時の給湯の保証
がある。これに対しては、ヒートポンプの加熱能
力低下する運転条件、例えば外気温度を検知して
ヒートポンプの運転を停止して補助加熱器に切換
え運転を行なう方法や、貯湯槽内に補助ヒータを
配して、貯湯槽の温水を加熱して給湯を保証する
方法がある。しかし従来の方法においては、例え
ばヒートポンプと補助加熱器の切換え運転では、
ヒートポンプ運転の停止により省エネルギ効果を
減少させると共に、切換え運転のために補助加熱
器の加熱能力を大容量のものを必要とした。又、
貯湯槽の温水を補助加熱器で加熱するものにおい
ては、貯湯槽内の温水温度分布により、加熱温水
がヒートポンプの凝縮器に影響を与え、ヒートポ
ンプの運転条件が変動を生じるために加熱能力の
低下、サイクルの不安定現象の原因となり、ヒー
トポンプの保護と運転の保証の点に問題があつ
た。 Conventionally, a problem with heat pump water heaters has been the guarantee of hot water supply even when the heating capacity of the heat pump decreases. To deal with this, there are ways to detect operating conditions that reduce the heat pump's heating capacity, such as detecting outside air temperature and stopping the heat pump and switching to an auxiliary heater, or installing an auxiliary heater in the hot water tank. There is a method to guarantee hot water supply by heating hot water in a hot water tank. However, in conventional methods, for example, when switching between a heat pump and an auxiliary heater,
Stopping the heat pump operation reduces the energy saving effect, and requires a large heating capacity of the auxiliary heater for switching operation. or,
In systems where hot water in a hot water storage tank is heated with an auxiliary heater, the heated hot water affects the condenser of the heat pump due to the hot water temperature distribution in the hot water storage tank, causing fluctuations in the operating conditions of the heat pump, resulting in a reduction in heating capacity. This caused cycle instability and caused problems in terms of heat pump protection and operation guarantee.
本発明は以上の様な従来の欠点を除去するもの
で、ヒートポンプの特性を生かした上で補助加熱
器との運転を行ない、省エネルギ効果と給湯の保
証を共存させるようにすることを目的とするもの
である。 The present invention eliminates the above-mentioned conventional drawbacks, and aims to make use of the characteristics of a heat pump and operate it with an auxiliary heater, thereby achieving both an energy saving effect and a guaranteed hot water supply. It is something to do.
この目的を達成するために本発明においては圧
縮機、凝縮器、絞り機構から成るヒートポンプの
上記凝縮器と貯湯槽とを水循環回路で連結し、上
記水循環回路中には前記凝縮器の下流側に補助加
熱器を配設すると共に、前記凝縮器出口の温水温
度がヒートポンプと補助加熱器の並用運転時に
は、ヒートポンプ単独運転時に対して低温になる
様にポンプの回転数を上げて循環水量制御したも
のである。 In order to achieve this object, in the present invention, the condenser of a heat pump consisting of a compressor, a condenser, and a throttle mechanism is connected to a hot water storage tank through a water circulation circuit. In addition to installing an auxiliary heater, the pump rotation speed is increased to control the amount of circulating water so that the hot water temperature at the outlet of the condenser is lower when the heat pump and the auxiliary heater are operated together than when the heat pump is operated alone. It is.
この構成により、ヒートポンプ運転のみで給湯
保証が出来ない場合には補助加熱器と並用運転し
ても、補助加熱器は凝縮器の下流側に位置させて
いるので補助加熱器の影響がヒートポンプ側に生
じることがなく、逆に、並用運転時にはヒートポ
ンプ単独運転時に対して、凝縮器出口の温水温度
が低くなる様に循環水量制御することにより、凝
縮器温度を低下させてヒートポンプを運転するこ
とが出来るので、ヒートポンプの成績係数を向上
させ、省エネルギ運転を行うもので、給湯の保証
と省エネルギ効果の共存を得られることになる。 With this configuration, if hot water supply cannot be guaranteed with heat pump operation alone, even if the auxiliary heater is operated in parallel, the auxiliary heater is located downstream of the condenser, so the influence of the auxiliary heater is on the heat pump side. On the contrary, during normal operation, the heat pump can be operated with the condenser temperature lowered by controlling the amount of circulating water so that the hot water temperature at the condenser outlet is lower than when the heat pump is operated alone. Therefore, by improving the coefficient of performance of the heat pump and performing energy-saving operation, it is possible to guarantee both hot water supply and energy-saving effects.
以下、本発明の一実施例を第１図の図面を用い
て説明する。なお第２図はヒートポンプの特性図
である。第１図において、１は圧縮機、２は凝縮
器、３は膨張弁、４は蒸発器、５はフアン、６は
アキユムレータであり、空気熱源のヒートポンプ
冷媒回路を構成している。これに対し、７は貯湯
槽、８は凝縮器２との間の水循環回路、９はポン
プ、１０は凝縮器２の下流側に配設した補助ヒー
タ、１１は給湯管、１２は給水管であり、貯湯槽
７と凝縮器２および補助ヒータ１０との水循環と
給水管１２から給湯管１１への出湯機能を構成し
ている。さらに１３は凝縮器２出口の温水検知器
で、これにより、ポンプ９の回転数を上げて循環
水量を多くし、補助ヒータ１０との並用運転時に
はヒートポンプ単独運転時に対して凝縮器２出口
の温水温度を低くなる様に操作するものである。 Hereinafter, one embodiment of the present invention will be described using the drawing of FIG. Note that FIG. 2 is a characteristic diagram of the heat pump. In FIG. 1, 1 is a compressor, 2 is a condenser, 3 is an expansion valve, 4 is an evaporator, 5 is a fan, and 6 is an accumulator, which constitute a heat pump refrigerant circuit using an air heat source. On the other hand, 7 is a hot water storage tank, 8 is a water circulation circuit between the condenser 2, 9 is a pump, 10 is an auxiliary heater installed downstream of the condenser 2, 11 is a hot water pipe, and 12 is a water supply pipe. It functions to circulate water between the hot water storage tank 7, condenser 2, and auxiliary heater 10, and to supply hot water from the water supply pipe 12 to the hot water supply pipe 11. Furthermore, 13 is a hot water detector at the outlet of the condenser 2, which increases the number of rotations of the pump 9 to increase the amount of circulating water. It is operated to lower the temperature.
以上の構成において貯湯槽７に温湯を貯える場
合にはヒートポンプとポンプ９の運転により、貯
湯槽７の下部からの循環水を凝縮器２で加熱し温
湯にして頂部へ流入させ貯湯する。このヒートポ
ンプ単独運転の場合には凝縮器２出口の温度が高
くなる様に温水検知器１３でポンプ９が制御され
ているので充分な温湯のもとで給湯が保証されて
いる。 When hot water is stored in the hot water storage tank 7 in the above configuration, the heat pump and the pump 9 are operated to heat the circulating water from the lower part of the hot water storage tank 7 in the condenser 2 and make it into hot water, which flows into the top and is stored. In the case of this heat pump independent operation, the pump 9 is controlled by the hot water detector 13 so that the temperature at the outlet of the condenser 2 becomes high, so that hot water supply with sufficient hot water is guaranteed.
第２図にヒートポンプの特性を示しているが、
横軸の外気温度TAと凝縮温度TC1〜3に対する成
績係数copの関係である。TAが低くなる程、又
凝縮温度がTC1からTC3へと高くなる程copは低
下してくる。従つて外気条件の良い場合には高温
の給湯温水を得るべく凝縮温度を高くした運転で
も、ヒートポンプのみで充分な加熱能力と高い成
績係数が得られ省エネルギ効果の多きい給湯が出
来る。しかし外気条件が悪くなるとヒートポンプ
単独運転では加熱能力が不足し成績係数も低下す
る。従つて本発明においては、外気温度が低下す
ると補助ヒータ１０との並用運転で加熱能力を保
証すると共に、凝縮器２の出口温度を低温にする
ことにより、凝縮温度を低下させてヒートポンプ
の成績係数の低下を防止する様にしたものであ
る。つまり、ヒートポンプ単独運転時の凝縮温度
ABに対して並用運転時にはCDにすることにより
copの防止を得たものである。 Figure 2 shows the characteristics of the heat pump.
This is the relationship between the coefficient of performance cop and the outside air temperature TA on the horizontal axis and the condensation temperature TC 1 to 3 . The lower the TA, and the higher the condensation temperature from TC 1 to TC 3 , the lower the cop. Therefore, when outside air conditions are good, even if the condensing temperature is increased to obtain high-temperature hot water, sufficient heating capacity and a high coefficient of performance can be obtained using only the heat pump, and hot water can be supplied with a large energy-saving effect. However, when outside air conditions worsen, the heating capacity is insufficient when the heat pump is operated alone, and the coefficient of performance also decreases. Therefore, in the present invention, when the outside air temperature decreases, the heating capacity is guaranteed by parallel operation with the auxiliary heater 10, and by lowering the outlet temperature of the condenser 2, the condensing temperature is lowered and the coefficient of performance of the heat pump is improved. This is designed to prevent a decrease in In other words, the condensing temperature when the heat pump is operated alone
By changing to CD during normal operation compared to AB
This is what got the cop prevention.
又、並用運転時に補助ヒータ１０は凝縮器２の
下流側で温水を加熱するので、凝縮器２への流水
温度上昇への影響がないので、この点でもcopの
低下防止を行なうことが出来る。 Furthermore, since the auxiliary heater 10 heats the hot water downstream of the condenser 2 during normal operation, there is no effect on the temperature rise of the water flowing into the condenser 2, so that the cop can be prevented from decreasing in this respect as well.
以上の様に本発明のヒートポンプ給湯機は、圧
縮機、凝縮器、絞り機構、蒸発器から成るヒート
ポンプの上記凝縮器と貯湯槽とを水循環回路で連
結し、上記水循環回路中には前記凝縮器の下流側
に補助加熱器を配設すると共に、前記凝縮器出口
の温水温度がヒートポンプと補助加熱器の並用運
転時には、ヒートポンプ単独運転時に対して低温
になる様に循環水量制御機構を設けているので、
補助加熱器との並用運転時にも補助加熱によるヒ
ートポンプ運転への影響が出ることなく、逆に凝
縮器出口の温水温度を低下させているので、省エ
ネルギ効果の大きな給湯保証を得られるものであ
る。 As described above, in the heat pump water heater of the present invention, the condenser of the heat pump, which is composed of a compressor, a condenser, a throttle mechanism, and an evaporator, and a hot water storage tank are connected through a water circulation circuit, and the water circulation circuit includes the condenser. An auxiliary heater is disposed downstream of the auxiliary heater, and a circulating water flow rate control mechanism is provided so that the hot water temperature at the outlet of the condenser is lower when the heat pump and auxiliary heater are operated together than when the heat pump is operated alone. So,
Even when operated in parallel with an auxiliary heater, the auxiliary heating does not affect the heat pump operation, and on the contrary, the hot water temperature at the condenser outlet is lowered, which guarantees hot water supply with a large energy-saving effect. .
さらに、ヒートポンプ給湯機構成上においても
凝縮器と補助加熱器の加熱部分を貯湯槽と分離し
た形で水循環回路で連結しているので、貯湯槽の
構造が簡易になり従つて断熱効果が高くすること
が出来るため、貯湯時の放熱による湯温の低下を
防止する効果も得られる。 Furthermore, in the heat pump water heater configuration, the heating parts of the condenser and auxiliary heater are separated from the hot water tank and connected through a water circulation circuit, which simplifies the structure of the hot water tank and improves the insulation effect. As a result, it is possible to prevent the temperature of hot water from decreasing due to heat dissipation during storage.
第１図は本発明によるヒートポンプ給湯機の一
実施例を示す構成図、第２図はヒートポンプ特性
図である。
１……圧縮機、２……凝縮器、３……絞り機
構、４……蒸発器、７……貯湯槽、８……水循環
回路、９……ポンプ、１０……補助加熱器、１３
……温水温度検知器。
FIG. 1 is a configuration diagram showing an embodiment of a heat pump water heater according to the present invention, and FIG. 2 is a heat pump characteristic diagram. 1... Compressor, 2... Condenser, 3... Throttle mechanism, 4... Evaporator, 7... Hot water storage tank, 8... Water circulation circuit, 9... Pump, 10... Auxiliary heater, 13
...Hot water temperature detector.
Claims (1)
ヒートポンプの上記凝縮器と貯湯槽とを水循環回
路で連結し、上記水循環回路中には前記凝縮器の
下流側に補助加熱器を又、上流側にはポンプを配
設すると共に、凝縮器と補助加熱器の間に温水温
度検知器を設け、凝縮器出口の温水温度がヒート
ポンプと補助加熱器との並用運転時には、ヒート
ポンプ単独運転時に対して低温になる様、前記ポ
ンプの回転数を上げて、循環水量制御して成るヒ
ートポンプ給湯機。1 The condenser of the heat pump consisting of a compressor, a condenser, a throttling mechanism, and an evaporator is connected to a hot water storage tank through a water circulation circuit, and in the water circulation circuit, an auxiliary heater is installed downstream of the condenser, and an auxiliary heater is connected upstream of the condenser. In addition to installing a pump on the side, a hot water temperature detector is installed between the condenser and the auxiliary heater, so that the hot water temperature at the condenser outlet will be lower when the heat pump and the auxiliary heater are operated together than when the heat pump is operated alone. A heat pump water heater that increases the rotation speed of the pump to control the amount of circulating water so that the temperature is low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57004074A JPS58123047A (en) | 1982-01-14 | 1982-01-14 | Heat pump type hot water supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57004074A JPS58123047A (en) | 1982-01-14 | 1982-01-14 | Heat pump type hot water supplier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58123047A JPS58123047A (en) | 1983-07-22 |
| JPS6222380B2 true JPS6222380B2 (en) | 1987-05-18 |
Family
ID=11574653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57004074A Granted JPS58123047A (en) | 1982-01-14 | 1982-01-14 | Heat pump type hot water supplier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58123047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013242115A (en) * | 2012-05-22 | 2013-12-05 | Rinnai Corp | Storage type hot water supply system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59195049A (en) * | 1983-04-19 | 1984-11-06 | Osaka Gas Co Ltd | Hot water feeder |
| JPS59195048A (en) * | 1983-04-19 | 1984-11-06 | Osaka Gas Co Ltd | Hot water feeder |
| US6907923B2 (en) | 2003-01-13 | 2005-06-21 | Carrier Corporation | Storage tank for hot water systems |
-
1982
- 1982-01-14 JP JP57004074A patent/JPS58123047A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013242115A (en) * | 2012-05-22 | 2013-12-05 | Rinnai Corp | Storage type hot water supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58123047A (en) | 1983-07-22 |
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