JPS6131846A - Heat pump hot-water supplier - Google Patents
Heat pump hot-water supplierInfo
- Publication number
- JPS6131846A JPS6131846A JP15241884A JP15241884A JPS6131846A JP S6131846 A JPS6131846 A JP S6131846A JP 15241884 A JP15241884 A JP 15241884A JP 15241884 A JP15241884 A JP 15241884A JP S6131846 A JPS6131846 A JP S6131846A
- Authority
- JP
- Japan
- Prior art keywords
- heat pump
- hot water
- amount
- water
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 238000001704 evaporation Methods 0.000 claims abstract description 27
- 230000008020 evaporation Effects 0.000 claims description 22
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 239000008236 heating water Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 31
- 238000010586 diagram Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002265 prevention Effects 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
- F24H15/227—Temperature of the refrigerant in heat pump cycles
- F24H15/231—Temperature of the refrigerant in heat pump cycles at the evaporator
-
- 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
-
- 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
- F24H15/375—Control of heat pumps
- F24H15/38—Control of compressors of 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
本発明は補助加熱器を具備しだヒートポンプ給湯機に関
し、特に補助加熱器の運転制御に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat pump water heater equipped with an auxiliary heater, and more particularly to the operation control of the auxiliary 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は第１図に示すよう
に、圧縮機１、凝縮器２、膨張弁３、蒸発器４、ファン
５、アキュムレータ６よりなるヒートポンプ加熱ユニッ
トと、貯湯槽７、凝縮器２さの間の水循環回路８、ポン
プ９、補助加熱器１０給湯管１１、給水管１２、温水温
度検知器１３、残湯量検知センサ１４、熱源エンタルピ
検知センサ１５、ポンプ９の吸入水温検知センナ１６で
構成されており、残湯量と熱源エンタルどの値とにより
、補助加熱器１０の運転規制を行なっていた。Structure of conventional example and its problems As shown in Fig. 1, this type of conventional heat pump water heater is a heat pump heating system consisting of a compressor 1, a condenser 2, an expansion valve 3, an evaporator 4, a fan 5, and an accumulator 6. Water circulation circuit 8 between the unit, hot water storage tank 7, and condenser 2, pump 9, auxiliary heater 10, hot water pipe 11, water pipe 12, hot water temperature detector 13, remaining hot water amount detection sensor 14, heat source enthalpy detection sensor 15 , a sensor 16 for detecting the intake water temperature of the pump 9, and controls the operation of the auxiliary heater 10 based on the amount of remaining hot water and the enthalmic value of the heat source.
この制御構成では、ヒートポンプの加熱能力が熱源エン
タルピと相関関係にあるという特性を基本としているが
、実際のヒートポンプサイクルにおいては、冷媒封入量
のばらつきにより、同一熱源エンタルピ下においても加
熱能力に大きな差が出る場合があり、特に冷媒量不足の
場合、標準冷媒封入量時の加熱能力より大巾に低下する
ことがあるため、従来の熱源エンタルピで補助加熱器１
０の運転を規制する方式では、必要湯温、湯量が確保で
きなくなる場合が生じるという問題を有していた。This control configuration is based on the characteristic that the heating capacity of the heat pump is correlated with the heat source enthalpy, but in an actual heat pump cycle, due to variations in the amount of refrigerant charged, there is a large difference in heating capacity even under the same heat source enthalpy. In particular, if the amount of refrigerant is insufficient, the heating capacity may be significantly lower than the heating capacity when the standard amount of refrigerant is filled.
The system that restricts zero operation has the problem that the required hot water temperature and amount may not be secured.
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、ヒートポ
ンプの蒸発温度と残湯量検知により補助加熱器の運転を
タイミング良く規制することで、確実な湯量保証を行な
いながら運転効率の向上をはかると七を目的とする。Purpose of the Invention The present invention solves such conventional problems. By regulating the operation of the auxiliary heater in a timely manner by detecting the evaporation temperature of the heat pump and the amount of remaining hot water, it is possible to improve operational efficiency while ensuring a reliable amount of hot water. The purpose is measurement and seven.
発明の構成
この目的を達成するために本発明は、ヒートポンプの蒸
発温度検知センサと貯湯槽内残湯量検知センサを配設し
、ヒートポンプの蒸発温度と貯湯槽内の残湯量に応じて
補助加熱器の運転を規制する制御回路を設けたものであ
る。Structure of the Invention In order to achieve this object, the present invention provides a sensor for detecting the evaporation temperature of the heat pump and a sensor for detecting the amount of remaining hot water in the hot water storage tank, and activates the auxiliary heater according to the evaporation temperature of the heat pump and the amount of hot water remaining in the hot water storage tank. The system is equipped with a control circuit that regulates the operation of the system.
この構成によって、ヒートポンプの加熱能力はヒートポ
ンプの蒸発温度により決定される基本特性を有するだめ
、補助加熱器の運転を必要とするタイミングをヒートポ
ンプの蒸発器温度と貯湯槽内残湯量より適確に決定でき
て、確実な湯量保証が行なえるという作用を有する。With this configuration, the heating capacity of the heat pump has a basic characteristic determined by the evaporation temperature of the heat pump, and the timing when the auxiliary heater needs to be operated can be determined accurately based on the heat pump evaporator temperature and the amount of hot water remaining in the hot water storage tank. It has the effect of being able to reliably guarantee the amount of hot water.
実施例の説明
以下、本発明の一実施例を第２図、第３図、第４図を用
いて説明する。第２図において、貯湯槽７の残湯量検知
センサ１４と、ヒートポンプの膨張弁３と蒸発器４との
間に蒸発温度検知センサ１７が配設される。また第３図
の電気回路図において１４′は残湯量検知センサ１４の
信号により開閉す。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2, 3, and 4. In FIG. 2, an evaporation temperature detection sensor 17 is disposed between the remaining hot water amount detection sensor 14 of the hot water storage tank 7, and the expansion valve 3 and evaporator 4 of the heat pump. Further, in the electric circuit diagram shown in FIG. 3, 14' is opened and closed in response to a signal from the remaining hot water amount detection sensor 14.
るスイッチ、１６′はポンプ９の吸入水温検知センサ１
６の信号で開閉するスイッチ、１７′はヒートポンプの
蒸発温度上ン−！／−１７の信号により開閉す名スイッ
チ、１８はヒートポンプの高圧スイッチ１９はヒ−タ１
０の過熱防止スイッチ、２０はシステムのオンオフスイ
ッチである。なお、第１図と同一部材には同一番号を付
している。switch 16' is the intake water temperature detection sensor 1 of the pump 9.
The switch 17' opens and closes with the signal 6, and the switch 17' is above the evaporation temperature of the heat pump! 18 is the high pressure switch of the heat pump 19 is the heater 1
0 is an overheat prevention switch, and 20 is a system on/off switch. Note that the same members as in FIG. 1 are given the same numbers.
上記構成において、運転動作を説明する。In the above configuration, the driving operation will be explained.
まず、スイッチ２０をオンすると、圧縮機１、ファン６
、ポンプ９に通電され貯湯槽７の下部からの循環水を凝
縮器２で加熱し高温湯にして貯湯槽７頂部へ流入貯湯す
る。この時外気条件の変動給水温度の変化に対して、貯
湯槽７頂部への流入温水温度を一定にするべく温水温度
検知器１３によりポンプ９の回転数を操作し循環水量を
制御する。この時、ヒートポンプの加熱能力の十分大き
くなる蒸発温度の高い場合には、蒸発温度センサ１７の
スイッチ１７′は開となり補助加熱器１０へは通電され
かい。第４図にヒートポンプの蒸発温度ＴＥに対するヒ
ートポンプの加熱能力ＱＨの関係をＬｌで示す。また、
貯湯槽７内の残湯量０の場合の加熱負荷をＬ２、残湯量
が半分の場合の加熱負荷をＬ２で示す。この図でわかる
ように、加熱負荷は残湯量により決定され、ヒートポン
プの加熱能力は蒸発温度によって決定される。First, when the switch 20 is turned on, the compressor 1 and fan 6
, the pump 9 is energized, and the circulating water from the lower part of the hot water storage tank 7 is heated by the condenser 2 to become high temperature hot water, which flows into the top of the hot water storage tank 7 and is stored therein. At this time, the number of revolutions of the pump 9 is controlled by the hot water temperature detector 13 to control the amount of circulating water in order to keep the temperature of the hot water flowing into the top of the hot water tank 7 constant in response to changes in the water supply temperature that fluctuate due to outside air conditions. At this time, if the evaporation temperature is high enough to increase the heating capacity of the heat pump, the switch 17' of the evaporation temperature sensor 17 is opened and the auxiliary heater 10 is not energized. In FIG. 4, the relationship between the heating capacity QH of the heat pump and the evaporation temperature TE of the heat pump is shown by Ll. Also,
The heating load when the amount of hot water remaining in the hot water storage tank 7 is 0 is shown as L2, and the heating load when the amount of remaining hot water is half is shown as L2. As can be seen from this figure, the heating load is determined by the amount of remaining hot water, and the heating capacity of the heat pump is determined by the evaporation temperature.
ここで、ヒートポンプの加熱能力の線Ｌ１と残湯量０の
場合の加熱負荷の線Ｌ２の交点ＴＥ１を蒸発温度検知セ
ンサ１７の設定点とし、この設定点ＴＥ１より蒸発温度
の高い時はスイッチ１７′は開、低い時はスイッチ１７
′は閉となるごとく設定する。一方、残湯量検知センサ
１４は配設位置で残湯の有る場合は開、残湯の無い場合
は閉となるごとく設定する。Here, the intersection TE1 of the heating capacity line L1 of the heat pump and the heating load line L2 when the amount of remaining hot water is 0 is set as the set point of the evaporation temperature detection sensor 17, and when the evaporation temperature is higher than this set point TE1, the switch 17' is open, switch 17 when low
′ is set so that it is closed. On the other hand, the remaining hot water amount detection sensor 14 is set so that it is opened when there is residual hot water and closed when there is no residual hot water.
第３図に示すごとく、蒸発温度が設定温度ＴＥ１より高
い場合は効率の高いヒートポンプのみで運転する。一方
蒸発温度が設定温度ＴＥ１より低下し加熱能力が低下す
るとスイッチ１７′は閉となる、このとき、残湯量が０
であるとヒートポンプの加熱能力Ｌ１は加熱負荷Ｌ２よ
り低くなるが、残湯量検知センサ１４のスイッチ１４′
が閉となり、補助加熱器１０に通電され、ヒートポンプ
と補助加熱器１０の併用運転となり、加熱能力はＬ４と
加熱負荷Ｌ２より大きくなるため、湯温保証が可能とな
る。まだ、残湯量が十分有る場合は残湯量検知センサ１
４のスイッチ１４′は開となり、補助加熱器１０は通電
されないが第３図で示すごとく、加熱負荷Ｌ２はヒート
ポンプ加熱能力Ｌ１より小さいため補助加熱器１０を使
用せず効率の高いヒートポンプのみで湯温保証が可能と
なる。As shown in FIG. 3, when the evaporation temperature is higher than the set temperature TE1, only the highly efficient heat pump is operated. On the other hand, when the evaporation temperature falls below the set temperature TE1 and the heating capacity decreases, the switch 17' closes.At this time, the amount of remaining hot water becomes 0.
In this case, the heating capacity L1 of the heat pump becomes lower than the heating load L2, but the switch 14' of the remaining hot water amount detection sensor 14
is closed, the auxiliary heater 10 is energized, the heat pump and the auxiliary heater 10 are operated together, and the heating capacity is greater than L4 and the heating load L2, so the hot water temperature can be guaranteed. If there is still enough remaining hot water, the remaining hot water amount detection sensor 1
The switch 14' of No. 4 is opened and the auxiliary heater 10 is not energized, but as shown in FIG. It is possible to guarantee temperature.
発明の効果
以上のように本発明のヒートポンプ給湯機によれば次の
効果か得られる。Effects of the Invention As described above, the heat pump water heater of the present invention provides the following effects.
（１） ヒートポンプの加熱能力と相関関係を示す蒸
発温度検知による補助加熱器の規制を行なっているだめ
、冷媒封入量のばらつきによる影響を受けず確実にヒー
トポンプの加熱能力を判断できるため、適切な補助加熱
器の運転規制が可能となり、湯温保証が可能となる効果
を有する。(1) Since auxiliary heaters are regulated by evaporation temperature detection, which shows a correlation with the heating capacity of the heat pump, the heating capacity of the heat pump can be reliably determined without being affected by variations in the amount of refrigerant filled, so it is possible to determine the appropriate heating capacity of the heat pump. This has the effect of making it possible to regulate the operation of the auxiliary heater and guaranteeing the hot water temperature.
（２） ヒートポンプの蒸発温度センサと貯渦槽内残
湯量検知センサにより、蒸発温度が低下しヒートポンプ
加熱能力が低下してしかも残湯量が少なく加熱負荷が増
大した時にはヒートポンプと補助加熱器の併用運転によ
り十分な加熱能力を出して、大きな加熱負荷を十分満足
し、蒸発温度が低下して加熱能力が低下しても、残湯量
が多く加熱負荷の小さい時には効率の悪い不必要な補助
加熱器の運転をせず効率の高いヒートポンプのみで運転
するごとく制御するため、運転効率をより大きくする効
果がある。実際の使用においては残湯量が所定値以下に
なる頻度がかなり高いため、多大の効果を奏するもので
ある。(2) The heat pump's evaporation temperature sensor and sensor for detecting the amount of remaining hot water in the vortex storage tank enable combined operation of the heat pump and auxiliary heater when the evaporation temperature drops, the heat pump heating capacity decreases, and the amount of remaining hot water is low and the heating load increases. Even if the evaporation temperature decreases and the heating capacity decreases, when the amount of remaining hot water is large and the heating load is small, it is possible to use an inefficient and unnecessary auxiliary heater. Since it is controlled so that only the highly efficient heat pump is operated without operation, it has the effect of increasing operating efficiency. In actual use, the amount of remaining hot water is often less than a predetermined value, so this has a great effect.
本実施例で、補助加熱器を貯湯槽の外部で示したが、貯
湯槽内部に配設しても同等の効果が得られるものである
。また蒸発温度検知センサの取付位置を膨張弁と蒸発器
の間で示したが、蒸発器の二相域の位置であれば同じで
ある。さらに、本実施例では流入温水温度制御方式の例
で説明しだが他の方式例えば定流量循環方式あるいは貯
湯槽内埋設型熱交器方式でも同様の効果を得ることは明
らかである。In this embodiment, the auxiliary heater is shown outside the hot water storage tank, but the same effect can be obtained even if it is placed inside the hot water storage tank. Furthermore, although the mounting position of the evaporation temperature detection sensor is shown between the expansion valve and the evaporator, it is the same as long as it is located in the two-phase region of the evaporator. Further, in this embodiment, although the inflow hot water temperature control method is described as an example, it is clear that similar effects can be obtained with other methods such as a constant flow rate circulation method or a heat exchanger method buried in a hot water storage tank.
第１図は従来のヒートポンプ給湯機の構成図、第２図は
本発明の一実施例のヒートポンプ給湯機の構成図、第３
図は同電気回路図、第４図は加熱能力特性図である。
１ ・圧縮機、２・・・凝縮器、３・ 膨張弁、４・・
・・蒸発器、７ ・・・貯湯槽、１０・・・・・・補助
加熱器１４・・・・残湯量検知センサ、１７・・・・蒸
発温度検知センサ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図
第３図
ＴＥ／７ＥFig. 1 is a block diagram of a conventional heat pump water heater, Fig. 2 is a block diagram of a heat pump water heater according to an embodiment of the present invention, and Fig. 3 is a block diagram of a heat pump water heater according to an embodiment of the present invention.
The figure is the electric circuit diagram, and FIG. 4 is a heating capacity characteristic diagram. 1. Compressor, 2... Condenser, 3. Expansion valve, 4...
... Evaporator, 7 ... Hot water storage tank, 10 ... Auxiliary heater 14 ... Remaining hot water amount detection sensor, 17 ... Evaporation temperature detection sensor. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 TE/7E
Claims (1)
を加熱する手段を設け、前記ヒートポンプの蒸発温度検
知センサと貯湯槽内残湯量検知センサを有し、ヒートポ
ンプの蒸発温度と貯湯槽内残湯量により前記補助加熱器
の運転を規制する制御回路を備えたヒートポンプ給湯機
。A means for heating water in the hot water storage tank using the condensation heat of the heat pump and an auxiliary heater is provided, and the sensor includes a sensor for detecting the evaporation temperature of the heat pump and a sensor for detecting the amount of remaining hot water in the hot water storage tank, and the means is provided to detect the evaporation temperature of the heat pump and the amount of remaining hot water in the hot water storage tank. A heat pump water heater comprising a control circuit that regulates the operation of the auxiliary heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15241884A JPS6131846A (en) | 1984-07-23 | 1984-07-23 | Heat pump hot-water supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15241884A JPS6131846A (en) | 1984-07-23 | 1984-07-23 | Heat pump hot-water supplier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6131846A true JPS6131846A (en) | 1986-02-14 |
Family
ID=15540075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15241884A Pending JPS6131846A (en) | 1984-07-23 | 1984-07-23 | Heat pump hot-water supplier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6131846A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05312405A (en) * | 1992-05-14 | 1993-11-22 | Matsushita Electric Ind Co Ltd | Heat pump type hot water feeder |
| US20110280736A1 (en) * | 2010-04-28 | 2011-11-17 | Lee Yongju | Control method of dryer |
-
1984
- 1984-07-23 JP JP15241884A patent/JPS6131846A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05312405A (en) * | 1992-05-14 | 1993-11-22 | Matsushita Electric Ind Co Ltd | Heat pump type hot water feeder |
| US20110280736A1 (en) * | 2010-04-28 | 2011-11-17 | Lee Yongju | Control method of dryer |
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