JP2013160467A - Heat pump type hydronic heater - Google Patents

Heat pump type hydronic heater Download PDF

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Publication number
JP2013160467A
JP2013160467A JP2012023611A JP2012023611A JP2013160467A JP 2013160467 A JP2013160467 A JP 2013160467A JP 2012023611 A JP2012023611 A JP 2012023611A JP 2012023611 A JP2012023611 A JP 2012023611A JP 2013160467 A JP2013160467 A JP 2013160467A
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Prior art keywords
hot water
heat
heat pump
temperature
water supply
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Tokuro Karita
督郎 苅田
Toshihiro Horiuchi
敏弘 堀内
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Panasonic Corp
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Panasonic Corp
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Priority to JP2012023611A priority Critical patent/JP2013160467A/en
Priority to EP13153750.8A priority patent/EP2626640A3/en
Priority to CN2013100475858A priority patent/CN103244985A/en
Publication of JP2013160467A publication Critical patent/JP2013160467A/en
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    • 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
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
    • 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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • 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
    • 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
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1072—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and 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
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/223—Temperature of the water in the water storage tank
    • 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
    • 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
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • F24H15/45—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems

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  • 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)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a heat pump type hydronic heater capable of sufficiently increasing a temperature of warm water for hot water supply in a hot water storage tank, even when an operation is executed by using the hot water storage tank including an existing heat exchanger for hot water supply.SOLUTION: A heat pump type hydronic heater includes a heat pump type heat source 1, a water-refrigerant heat exchanger 4 exchanging heat between a refrigerant heated by the heat pump type heat source 1 and water, a circulation pump 6 circulating warm water for circulation heated by the water-refrigerant heat exchanger 4, a hot water storage tank 3 for storing warm water for hot water supply, a heat exchanger 5 for hot water supply, exchanging heat between the warm water for circulation and the warm water for hot water supply, and a control means. The control means repeats operations of the heat pump type heat source 1 several times to heat the warm water for hot water supply.

Description

本発明は、ヒートポンプ式温水暖房装置に関するものである。   The present invention relates to a heat pump type hot water heater.

従来のヒートポンプ式温水暖房装置を図３に示す。   A conventional heat pump hot water heater is shown in FIG.

従来から欧州等の寒冷地に普及しているヒートポンプ式温水暖房装置は、建物において温水を循環させて暖房を行う温水暖房循環システムであり、ヒートポンプ１６と温水を貯めるタンク１８と、三方弁２３、２４と温水循環ポンプ２２を内蔵するコントロールユニット１７と、暖房循環ポンプ２１とを備えている。ヒートポンプ１６内の熱交換器１９で生成された温水を温水循環パイプ２６でタンク１８内に供給する。   A heat pump type hot water heating apparatus that has been widely used in cold regions in Europe and the like is a hot water heating circulation system in which heating is performed by circulating hot water in a building. The heat pump 16 and a tank 18 for storing hot water, 24 and a control unit 17 incorporating a hot water circulation pump 22, and a heating circulation pump 21. Hot water generated by the heat exchanger 19 in the heat pump 16 is supplied into the tank 18 through the hot water circulation pipe 26.

タンク１８内の温水は三方弁２３により切り替えられ、暖房循環ポンプ２１で暖房循環往きパイプ２７ａを通して暖房用に建物へ送られる。暖房として放熱した温水は、暖房循環戻りパイプ２７ｂを通して三方弁２４により切り替えられ、タンク１８内に戻される。   The hot water in the tank 18 is switched by the three-way valve 23 and is sent to the building for heating through the heating circulation pump pipe 27a by the heating circulation pump 21. The hot water radiated as heating is switched by the three-way valve 24 through the heating circulation return pipe 27 b and returned to the tank 18.

タンク１６内の温水の再加熱は、三方弁２４により切り替えられ、温水循環ポンプ２２によりヒートポンプ１６へ送られ、熱交換器１９で再加熱されてタンク１８内へ送られる。   The reheating of the hot water in the tank 16 is switched by the three-way valve 24, sent to the heat pump 16 by the hot water circulation pump 22, reheated by the heat exchanger 19, and sent into the tank 18.

給湯する場合には、タンク１８内の給湯用熱交換器２０により、給水管２８からの水をタンク１８内の温水と熱交換して温水を作成し、給湯管２９により給湯用温水を供給する。またタンク１８内の温水がヒートポンプ１６により十分加熱できない場合の加熱用として、ヒータ２５を備えている（例えば、特許文献１参照）。   When hot water is supplied, hot water is generated by exchanging heat from the water supply pipe 28 with hot water in the tank 18 by the hot water supply heat exchanger 20 in the tank 18, and hot water for hot water supply is supplied through the hot water supply pipe 29. . A heater 25 is provided for heating when the hot water in the tank 18 cannot be sufficiently heated by the heat pump 16 (see, for example, Patent Document 1).

また、欧州でも北欧を中心に普及しているヒートポンプ式温水暖房装置は、図３とはタンク仕様が異なっており、図４に示す。   In addition, the heat pump type hot water heating apparatus that is widely used in Europe mainly in Northern Europe has a tank specification different from that in FIG. 3, and is shown in FIG.

ヒートポンプ１６で生成された温水は、コントロールユニット１７内の三方弁２３により切り替えられ、タンク３０を通らずに、暖房循環ポンプ２１により暖房循環往きパイプ２７ａを通して暖房用に建物へ送られる。   The hot water generated by the heat pump 16 is switched by the three-way valve 23 in the control unit 17 and sent to the building for heating through the heating circulation pump pipe 27a by the heating circulation pump 21 without passing through the tank 30.

給湯する場合には、ヒートポンプ１６で生成された温水が、三方弁２３により切り替えられ、タンク３０内の給湯用熱交換器３１によりタンク３０内に温水を作成する。またタンク１８内の温水がヒートポンプ１６により十分加熱できない場合に、ヒータ２５により加熱する。タンク３０は給水管２８より給水し、給湯管２９よりタンク内の温水を給湯する構成となっている。   When hot water is supplied, the hot water generated by the heat pump 16 is switched by the three-way valve 23, and hot water is created in the tank 30 by the hot water supply heat exchanger 31 in the tank 30. Further, when the hot water in the tank 18 cannot be sufficiently heated by the heat pump 16, it is heated by the heater 25. The tank 30 is configured to supply water from a water supply pipe 28 and to supply hot water in the tank from a hot water supply pipe 29.

そしてヒートポンプ式温水暖房装置の通常の暖房運転では、温水循環ポンプ２２で温水を循環させるとともに、温度センサ３２が検出する温水の温度が、リモコン装置等（図示せず）で設定した設定温度よりも所定温度高いことを検出すると、ヒートポンプ１６の運転を停止する。   In the normal heating operation of the heat pump type hot water heating apparatus, the hot water circulation pump 22 circulates the hot water and the temperature of the hot water detected by the temperature sensor 32 is higher than the set temperature set by a remote control device or the like (not shown). When it is detected that the predetermined temperature is high, the operation of the heat pump 16 is stopped.

タンク３０内に温水を作成する場合も同様に、温度センサ３２が検出する温水の温度が決められた設定温度よりも所定温度高いことを検出すると、ヒートポンプ１６の運転を停止する。この場合の設定温度はリモコン装置等の設定温度とヒートポンプ１６内の圧縮機（図示せず）の保護を目的とする温度から決定される（例えば、特許文献２、特許文献３
参照）。 Similarly, when hot water is created in the tank 30, the operation of the heat pump 16 is stopped when it is detected that the temperature of the hot water detected by the temperature sensor 32 is higher than a predetermined set temperature. The set temperature in this case is determined from the set temperature of the remote controller or the like and the temperature for the purpose of protecting the compressor (not shown) in the heat pump 16 (for example, Patent Document 2 and Patent Document 3).
reference).

特開２００８−３９３０５号公報JP 2008-39305 A 特開２０１１−４７６０７号公報JP 2011-47607 A 特開２００４−１５６８４８号公報JP 2004-156848 A

従来、欧州等の寒冷地には、ヒートポンプ式温水暖房装置が普及する以前に、石油やガスを使用したボイラ等を熱源とする温水暖房装置が普及していた。   Conventionally, in cold districts such as Europe, before the heat pump type hot water heating apparatus has become widespread, the hot water heating apparatus using a boiler or the like using oil or gas as a heat source has been widespread.

したがって、ヒートポンプ式温水暖房装置を設置する場合に、既設の貯湯用タンクを使用することがある。既設の貯湯用タンクの給湯用熱交換器は、石油やガスを使用したボイラ等を対象としており、熱交換効率の高いものから低いものまで様々であり、熱交換効率の低い給湯用熱交換器にヒートポンプ式温水暖房装置を設置し運転すると、タンク内の水の温度が十分に上がらない場合がある。   Therefore, when a heat pump hot water heater is installed, an existing hot water storage tank may be used. Existing hot water storage heat exchangers for hot water supply are for boilers using oil and gas, and range from high heat exchange efficiency to low heat exchange heat exchangers with low heat exchange efficiency. If a heat pump type hot water heater is installed and operated, the temperature of the water in the tank may not rise sufficiently.

給湯用熱交換器の熱交換効率が低いと、循環する温水の熱がタンク内の水に伝わらず、循環する温水の温度が上昇して、温度センサが検出する温水の温度が決められた設定温度よりも所定温度高いことを検出して、ヒートポンプ式熱源器の運転が停止する。   If the heat exchange efficiency of the hot water supply heat exchanger is low, the temperature of the circulating hot water is not transferred to the water in the tank, and the temperature of the circulating hot water rises. It is detected that the temperature is higher than the temperature by a predetermined temperature, and the operation of the heat pump heat source unit is stopped.

したがって、ヒータの運転が多くなり、ヒートポンプの特性を十分に生かした熱効率や省電力効果が得られず、ヒータが備わっていないタンクでは、タンク内に十分に温水を作成することができない現象が発生する。   Therefore, the operation of the heater is increased, the thermal efficiency and power saving effect that make full use of the characteristics of the heat pump cannot be obtained, and there is a phenomenon that hot water cannot be created sufficiently in the tank without a heater To do.

また、既設の貯湯用タンクでなくとも、ヒートポンプ式温水暖房装置を提供する販売会社が推奨していないタンクを使用した場合は、前記と同様の現象が発生する場合がある。   Moreover, even if it is not an existing hot water storage tank, if a tank that is not recommended by a sales company that provides a heat pump hot water heating apparatus is used, the same phenomenon as described above may occur.

本発明は、前記従来の課題を解決するもので、既設の給湯用熱交換器を備えた貯湯用タンクを使用して運転した場合でも、貯湯用タンク内の給湯用温水の温度を十分に上昇させることができるヒートポンプ式温水暖房装置を提供することを目的とする。   The present invention solves the above-described conventional problems, and even when operated using a hot water storage tank equipped with an existing hot water supply heat exchanger, the temperature of hot water for hot water supply in the hot water storage tank is sufficiently increased. An object of the present invention is to provide a heat pump type hot water heating apparatus that can be made to operate.

前記従来の課題を解決するために、本発明のヒートポンプ式温水暖房装置は、ヒートポンプ式熱源器と、前記ヒートポンプ式熱源器で加熱した冷媒と水とを熱交換する水冷媒熱交換器と、前記水冷媒熱交換器にて加熱された循環用温水を循環させる循環ポンプと、給湯用温水を貯湯する貯湯用タンクと、前記循環用温水と前記給湯用温水とを熱交換する給湯用熱交換器と、制御手段とを備え、前記制御手段が、前記ヒートポンプ式熱源器を複数回繰り返し運転させることで、前記給湯用温水を加熱することを特徴とするものである。   In order to solve the conventional problems, a heat pump type hot water heating device of the present invention includes a heat pump type heat source device, a water refrigerant heat exchanger that exchanges heat between the refrigerant heated by the heat pump type heat source device and water, A circulation pump that circulates circulating hot water heated by a water-refrigerant heat exchanger, a hot water storage tank that stores hot water for hot water supply, and a hot water supply heat exchanger that exchanges heat between the circulating hot water and the hot water hot water And a control means, wherein the control means heats the hot water supply hot water by repeatedly operating the heat pump heat source device a plurality of times.

これにより、水冷媒熱交換器で生成された循環用温水の熱を、貯湯用タンク内の水に十分に伝えるまで、ヒートポンプ式熱源器を複数回運転して、循環用温水を繰り返し循環して熱交換することで、給湯用熱交換器の熱交換効率に起因せず、貯湯用タンク内の給湯用温水の温度を十分に上昇させることができるヒートポンプ式温水暖房装置を提供できる。   As a result, the heat pump heat source is operated multiple times until the heat of the circulating hot water generated by the water refrigerant heat exchanger is sufficiently transmitted to the water in the hot water storage tank, and the circulating hot water is circulated repeatedly. By performing heat exchange, it is possible to provide a heat pump type hot water heating apparatus that can sufficiently raise the temperature of hot water for hot water supply in a hot water storage tank without causing the heat exchange efficiency of the heat exchanger for hot water supply.

本発明によれば、既既設の給湯用熱交換器を備えた貯湯用タンクを使用して運転した場合でも、貯湯用タンク内の給湯用温水の温度を十分に上昇させることができるヒートポン
プ式温水暖房装置を提供できる。 ADVANTAGE OF THE INVENTION According to this invention, even when it operates using the hot water storage tank provided with the existing heat exchanger for hot water supply, the heat pump hot water which can fully raise the temperature of the hot water for hot water supply in the hot water storage tank A heating device can be provided.

本発明の実施の形態１におけるヒートポンプ式温水暖房装置の構成図The block diagram of the heat pump type hot water heating apparatus in Embodiment 1 of this invention 同ヒートポンプ式温水暖房装置運転時の循環温水往き温度とタンク内温水温度の関係を示す図The figure which shows the relationship between the circulating hot water going temperature and the hot water temperature in the tank when operating the heat pump type hot water heater 従来のヒートポンプ式温水暖房装置の構成図Configuration diagram of conventional heat pump hot water heater 従来の他のヒートポンプ式温水暖房装置の構成図Configuration diagram of another conventional heat pump hot water heater

第１の発明は、ヒートポンプ式熱源器と、前記ヒートポンプ式熱源器で加熱した冷媒と水とを熱交換する水冷媒熱交換器と、前記水冷媒熱交換器にて加熱された循環用温水を循環させる循環ポンプと、給湯用温水を貯湯する貯湯用タンクと、前記循環用温水と前記給湯用温水とを熱交換する給湯用熱交換器と、制御手段とを備え、前記制御手段が、前記ヒートポンプ式熱源器を複数回繰り返し運転させることで、前記給湯用温水を加熱することを特徴とするヒートポンプ式温水暖房装置である。   The first invention includes a heat pump heat source, a water refrigerant heat exchanger for exchanging heat between the refrigerant heated by the heat pump heat source and water, and hot water for circulation heated by the water refrigerant heat exchanger. A circulation pump for circulation, a hot water storage tank for storing hot water for hot water supply, a hot water supply heat exchanger for exchanging heat between the hot water for circulation and the hot water for hot water supply, and control means, the control means comprising: The heat pump type hot water heater is characterized in that the hot water for hot water supply is heated by repeatedly operating the heat pump type heat source device a plurality of times.

これにより、水冷媒熱交換器で生成された循環用温水の熱を、貯湯用タンク内の水に十分に伝えるまで、ヒートポンプ式熱源器を複数回運転して、循環用温水を繰り返し循環して熱交換することで、給湯用熱交換器の熱交換効率に起因せず、貯湯用タンク内の給湯用温水の温度を十分に上昇させることができるヒートポンプ式温水暖房装置を提供できる。   As a result, the heat pump heat source is operated multiple times until the heat of the circulating hot water generated by the water refrigerant heat exchanger is sufficiently transmitted to the water in the hot water storage tank, and the circulating hot water is circulated repeatedly. By performing heat exchange, it is possible to provide a heat pump type hot water heating apparatus that can sufficiently raise the temperature of hot water for hot water supply in a hot water storage tank without causing the heat exchange efficiency of the heat exchanger for hot water supply.

第２の発明は、前記循環用温水の温度を検出する温度センサを備え、前記ヒートポンプ式熱源器の運転を停止する高温側設定温度を設けたことを特徴とするものである。   2nd invention is provided with the temperature sensor which detects the temperature of the said warm water for a circulation, and provided the high temperature side preset temperature which stops the operation | movement of the said heat pump type heat source device, It is characterized by the above-mentioned.

これにより、貯湯用タンクには給湯用熱交換器に加えてヒータが備えられているものがあり、給湯用熱交換器よりもタンク上部に、ヒータと給湯用温水の温度を検出する温度センサが配置されていると、ヒータの加熱により、タンクの上部の給湯用温水の温度は上昇するが、給湯用熱交換器周辺のタンク下部の給湯用温水の温度は十分に上がっていないことがある。   Accordingly, some hot water storage tanks are provided with a heater in addition to the hot water heat exchanger, and a temperature sensor that detects the temperature of the heater and hot water for hot water supply is located above the hot water heat exchanger. If it is arranged, the temperature of hot water for hot water supply at the upper part of the tank rises due to heating of the heater, but the temperature of hot water for hot water supply at the lower part of the tank around the hot water supply heat exchanger may not be sufficiently raised.

そこで、循環用温水の温度を検出する温度センサが高温側設定温度を検出するまで、ヒートポンプ式熱源器を複数回繰り返し運転することで、貯湯用タンクの下部の給湯用温水まで十分に温度を上げることができる。   Therefore, by repeatedly operating the heat pump type heat source device several times until the temperature sensor that detects the temperature of the circulating hot water detects the high temperature side set temperature, the temperature is sufficiently raised to the hot water for hot water supply at the bottom of the hot water storage tank. be able to.

第３の発明は、前記ヒートポンプ式熱源器が運転を再開する低温側設定温度を設けたことを特徴とするもので、この運転を繰り返すことで、ヒートポンプ式熱源器内の圧縮機を保護しつつ、貯湯用タンク内の給湯用温水を加熱することができる。   The third invention is characterized in that the heat pump type heat source device is provided with a low temperature set temperature at which the operation is resumed, and by repeating this operation, the compressor in the heat pump type heat source device is protected. The hot water for hot water supply in the hot water storage tank can be heated.

第４の発明は、前記給湯用温水の温度を検出する温度センサを備え、前記温度センサが所定温度を検出すると、前記ヒートポンプ式熱源器の運転を停止することを特徴とするもので、リモコン等で設定された設定温度に貯湯用タンク内の給湯用温水の温度が上昇するまで、ヒートポンプ式熱源器を複数回運転して、かつ、循環用温水を繰り返し循環して熱交換するもので、貯湯用タンクの給湯用温水を設定温度まで上げることができる。   4th invention is equipped with the temperature sensor which detects the temperature of the said hot water for hot water supply, and if the said temperature sensor detects predetermined temperature, it will stop the operation | movement of the said heat pump type heat source device, It is characterized by the above-mentioned. The heat pump type heat source is operated several times until the temperature of the hot water for hot water supply in the hot water storage tank rises to the set temperature set in, and the hot water for circulation is circulated repeatedly to exchange heat. The hot water for hot water supply in the tank can be raised to the set temperature.

第５の発明は、前記ヒートポンプ式熱源器が、予め設定された所定時間を連続運転すると、前記ヒートポンプ式熱源器の運転を停止することを特徴とするもので、ヒートポンプ式熱源器の保護と不要な加熱を防止することができる。   According to a fifth aspect of the present invention, when the heat pump heat source device is continuously operated for a predetermined time set in advance, the operation of the heat pump heat source device is stopped, and the heat pump heat source device is protected and unnecessary. Heating can be prevented.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の
形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態）
図１は、実施の形態におけるヒートポンプ式温水暖房装置の構成図である。まず、図１を用いて本実施の形態のヒートポンプ式温水暖房装置の構成を説明する。 (Embodiment)
Drawing 1 is a lineblock diagram of the heat pump type hot water heating device in an embodiment. First, the structure of the heat pump type hot water heating apparatus of this Embodiment is demonstrated using FIG.

ヒートポンプ式熱源器１では冷媒を加熱し冷媒配管２を通って水冷媒熱交換器４に送る。冷媒にはＲ４１０Ａを用いているが、その他、フルオロカーボン系の冷媒を用いることができる。水冷媒熱交換器４はステンレスのプレートを積み重ねた熱交換器を用いているが、２重の銅管で構成した熱交換器を使用しても良い。   In the heat pump heat source device 1, the refrigerant is heated and sent to the water refrigerant heat exchanger 4 through the refrigerant pipe 2. R410A is used as the refrigerant, but other fluorocarbon refrigerants can be used. The water-refrigerant heat exchanger 4 uses a heat exchanger in which stainless steel plates are stacked, but a heat exchanger composed of double copper tubes may be used.

循環ポンプ６は循環水を循環温水戻りパイプ１１ｂを通して水冷媒熱交換器４に送る。水冷媒熱交換器４では加熱された冷媒と循環水を熱交換し循環用温水を作成する。循環用温水は循環温水往きパイプ１１ａを通り、暖房する場合は三方弁７で切り替えられ、暖房循環往きパイプ１５ａを通って建物内に送られる。   The circulation pump 6 sends the circulating water to the water refrigerant heat exchanger 4 through the circulating hot water return pipe 11b. The water-refrigerant heat exchanger 4 exchanges heat between the heated refrigerant and circulating water to create hot water for circulation. The circulating hot water passes through the circulating hot water going pipe 11a, and when heated, it is switched by the three-way valve 7 and is sent into the building through the heating circulating going pipe 15a.

建物内で放熱された循環用温水は暖房循環戻りパイプ１５ｂを通って循環ポンプ６で水冷媒熱交換器４に送られて再加熱される。これらの水冷媒熱交換器４と循環ポンプ６と三方弁７とリモコン装置等の制御手段（図示せず）は同じケース内に組み込まれ、主に屋内に設置されている。   The circulating hot water radiated in the building passes through the heating circulation return pipe 15b and is sent to the water / refrigerant heat exchanger 4 by the circulation pump 6 to be reheated. Control means (not shown) such as the water-refrigerant heat exchanger 4, the circulation pump 6, the three-way valve 7, and a remote control device are incorporated in the same case, and are mainly installed indoors.

暖房する場合には循環用温水の温度はリモコンで設定でき、主に３５℃から５５℃の範囲で調整される。給湯する場合には、水冷媒熱交換器４で生成された循環用温水が、三方弁７により切り替えられ、貯湯用タンク３内の給湯用熱交換器５送られ、貯湯用タンク３内に給湯用温水を作成する。   In the case of heating, the temperature of the circulating hot water can be set by a remote controller, and is mainly adjusted in the range of 35 ° C to 55 ° C. In the case of supplying hot water, the circulating hot water generated by the water / refrigerant heat exchanger 4 is switched by the three-way valve 7, sent to the hot water heat exchanger 5 in the hot water storage tank 3, and supplied to the hot water storage tank 3. Create hot water.

給湯用熱交換器５は螺旋状に巻いたステンレス管で構成され、貯湯用タンク３の内部に溶接されて固定してある。貯湯用タンク３は給水管９より給水し、給湯管１０より給湯用温水を給湯する構成となっている。貯湯用タンク３に作成される給湯用温水の温度もリモコンで設定でき、主に３５℃から７５℃で調整される。   The hot water supply heat exchanger 5 is composed of a spirally wound stainless steel pipe, and is welded and fixed inside the hot water storage tank 3. The hot water storage tank 3 is configured to supply water from a water supply pipe 9 and to supply hot water for hot water supply from a hot water supply pipe 10. The temperature of hot water for hot water supply created in the hot water storage tank 3 can also be set by a remote controller, and is mainly adjusted from 35 ° C to 75 ° C.

貯湯用タンク３内の水がすべて常温の状態から加熱する場合は、まず、給湯用熱交換器５に循環用温水が送られ、貯湯用タンク３内の水を加熱する。リモコンで設定された一定時間後にヒータ８が作動し、加熱を始める。   When all the water in the hot water storage tank 3 is heated from the room temperature, first, the hot water for circulation is sent to the hot water supply heat exchanger 5 to heat the water in the hot water storage tank 3. The heater 8 is activated after a predetermined time set by the remote controller and starts heating.

リモコンで設定された貯湯用タンク３内の給湯用温水の温度が５５℃以下の場合は、給湯温水用温度センサ１４が設定温度を検知すると、ヒートポンプ式熱源器１および循環ポンプ６の運転を停止し、ヒータ８の通電を停止する。   When the temperature of the hot water supply hot water in the hot water storage tank 3 set by the remote controller is 55 ° C. or less, the operation of the heat pump heat source 1 and the circulation pump 6 is stopped when the hot water hot water temperature sensor 14 detects the set temperature. Then, the energization of the heater 8 is stopped.

リモコンで設定された給湯用温水の温度が５５℃以上の場合、給湯温水用温度センサ１４が５５℃を検知するとヒートポンプ式熱源器１および循環ポンプ６の運転を停止するが、ヒータ８は設定温度を検知するまで通電を継続し、加熱を行う。   When the temperature of hot water for hot water supply set by the remote controller is 55 ° C. or higher, when the temperature sensor 14 for hot water hot water detects 55 ° C., the operation of the heat pump heat source 1 and the circulation pump 6 is stopped, but the heater 8 has a set temperature. Continue energizing until it is detected and heat.

本実施の形態のヒートポンプ式温水暖房装置では、ヒートポンプ式熱源器１の出力が１６ｋｗであり、推奨する貯湯タンクの給湯用熱交換器の表面積は、約１．４ｍ２で５５℃の給湯用温水を作成できる。 In the heat pump type hot water heating apparatus of the present embodiment, the output of the heat pump type heat source device 1 is 16 kw, and the recommended hot water supply surface area of the hot water storage tank is about 1.4 m 2 and hot water for hot water supply at 55 ° C. Can be created.

その際、冷媒水熱交の循環用温水往きパイプ１１ａに取り付けられた循環温水用温度センサ１３で検知する循環水の温度は約６０℃となる。循環水の温度を上げた場合、冷媒温度も上がり、ヒートポンプ式熱源器１内の圧縮機（図示せず）の圧力が上がるため、圧縮
機を保護するための循環水の高温側設定温度を設けてあり、循環温水用温度センサ１３が高温側設定温度を検知すると、ヒートポンプ式熱源器１の運転を停止するようにしている。高温側設定温度は６０℃にしてある。 At that time, the temperature of the circulating water detected by the circulating hot water temperature sensor 13 attached to the circulating hot water return pipe 11a of the refrigerant water heat exchange is about 60 ° C. When the temperature of the circulating water is raised, the refrigerant temperature also rises and the pressure of the compressor (not shown) in the heat pump heat source device 1 rises, so a high temperature side set temperature for circulating water is provided to protect the compressor. When the circulating hot water temperature sensor 13 detects the high temperature side set temperature, the operation of the heat pump heat source device 1 is stopped. The high temperature side set temperature is 60 ° C.

給湯用熱交換器５の熱交換効率が小さい貯湯用タンク３を使用した場合、例えば、給湯用熱交換器５の表面積が０．８ｍ２であった場合、貯湯用タンク３内の水に伝わる熱量は少なくなるため、貯湯用タンク３内の給湯用温水の温度があまり上がらないうちに循環水の温度が高温側設定温度に到達してしまうことになる。 When the hot water storage tank 3 having a low heat exchange efficiency of the hot water supply heat exchanger 5 is used, for example, when the surface area of the hot water supply heat exchanger 5 is 0.8 m 2 , it is transmitted to the water in the hot water storage tank 3. Since the amount of heat decreases, the temperature of the circulating water reaches the high temperature side set temperature before the temperature of the hot water for hot water supply in the hot water storage tank 3 rises so much.

循環水の温度が６０℃に到達した時、貯湯用タンク３内の給湯用温水の温度は約４０℃程度である。さらに温度を上げるためにヒータ８に通電して貯湯用タンク３内の給湯用温水の温度を設定温度にする。   When the temperature of the circulating water reaches 60 ° C., the temperature of hot water for hot water supply in the hot water storage tank 3 is about 40 ° C. In order to further raise the temperature, the heater 8 is energized to set the temperature of hot water for hot water supply in the hot water storage tank 3 to a set temperature.

ヒータ８にはシーズヒータを使用しており、ヒートポンプに比べて熱効率が劣るため、できるだけヒートポンプで給湯用温水を作成する方が省電力となる。したがって、図２のグラフに示すように、複数回、ヒートポンプ式熱源器１を運転して貯湯用タンク３内の水を加熱する構成としている。   Since a sheathed heater is used as the heater 8 and its thermal efficiency is inferior to that of a heat pump, it is possible to save power by creating hot water for hot water supply with a heat pump as much as possible. Therefore, as shown in the graph of FIG. 2, the heat pump heat source device 1 is operated a plurality of times to heat the water in the hot water storage tank 3.

貯湯用タンク３内の水を加熱していくと、循環温水温度と給湯用温水温度が上昇し、循環温水用温度センサが高温側設定温度を検知して、一旦ヒートポンプ式熱源器１の運転が停止する。給湯用温水温度がリモコンで設定された温度以下および５５℃以下の時、循環ポンプ６の運転を継続する。   When the water in the hot water storage tank 3 is heated, the circulating hot water temperature and the hot water temperature for hot water supply rise, the temperature sensor for circulating hot water detects the set temperature on the high temperature side, and the operation of the heat pump heat source device 1 is temporarily performed. Stop. When the hot water temperature for hot water supply is below the temperature set by the remote controller and below 55 ° C., the operation of the circulation pump 6 is continued.

循環用温水の温度は下がり、ヒートポンプ式熱源器１を再運転するように予め設定された低温側設定温度を循環温水用温度センサが検知すると、ヒートポンプ式熱源器１を再運転し、再度タンク内の給湯用温水を加熱する。   When the temperature of the circulating hot water decreases and the circulating hot water temperature sensor detects the low temperature side preset temperature set in advance so that the heat pump heat source device 1 is restarted, the heat pump heat source device 1 is restarted and again in the tank. Heat hot water for hot water supply.

ヒートポンプ式熱源器１の再運転と停止を複数回運転したのち、給湯温水用温度センサ１４が設定温度を検知すると、ヒートポンプ式熱源器１および循環ポンプ６の運転を停止する。本実施の形態では、給湯用熱交換器５の表面積が０．８ｍ２と熱交換効率が小さくても、給湯用温水の温度を５５℃まで上げることができる。 After the heat pump heat source device 1 has been re-operated and stopped a plurality of times, when the hot water supply hot water temperature sensor 14 detects the set temperature, the operation of the heat pump heat source device 1 and the circulation pump 6 is stopped. In the present embodiment, even if the surface area of the hot water supply heat exchanger 5 is 0.8 m 2 and the heat exchange efficiency is small, the temperature of the hot water for hot water supply can be raised to 55 ° C.

また、貯湯用タンク３内の水を加熱する際、ヒートポンプ式熱源器１とヒータ８を同時に通電すると、貯湯用タンク３の上部の給湯用温水は早い時間で設定温度に到達するが、ヒータ８よりも下部の給湯用温水は設定温度に到達していない場合が発生する。   Further, when the water in the hot water storage tank 3 is heated, if the heat pump heat source 1 and the heater 8 are energized at the same time, the hot water hot water in the upper part of the hot water storage tank 3 reaches the set temperature in an early time. The hot water for hot water supply at the lower part may not reach the set temperature.

そこで、ヒートポンプ式熱源器１は、循環温水用温度センサが高温側設定温度を一度は検出するまで、ヒートポンプ式熱源器を運転して給湯用温水の温度を十分上げるようにすることで、早い時間で少量の給湯を使用可能にしつつ、貯湯用タンク３全体に給湯用温水をつくることができる。   Therefore, the heat pump type heat source device 1 operates the heat pump type heat source device so that the temperature of the hot water for hot water supply is sufficiently raised until the temperature sensor for circulating hot water once detects the set temperature on the high temperature side. Thus, hot water for hot water supply can be created in the entire hot water storage tank 3 while enabling a small amount of hot water to be used.

また、貯湯用タンク３の給湯用熱交換器５の熱交換効率が小さく、かつ、ヒータ８が備えられていないタンク、または、ヒータ８の配線をはずしている場合、繰り返しヒートポンプ式熱源器１を運転させて貯湯用タンク３内の水を加熱しても、全く設定温度に達しない場合がある。そこでヒートポンプ式熱源器が予め決められた所定時間連続運転すると、運転を停止し、ヒートポンプ式熱源器の保護と不要な加熱を防止している。   Further, when the heat exchange efficiency of the hot water supply heat exchanger 5 of the hot water storage tank 3 is small and the heater 8 is not provided, or the heater 8 is disconnected, the heat pump heat source device 1 is repeatedly used. Even when the water in the hot water storage tank 3 is operated and heated, the set temperature may not be reached at all. Therefore, when the heat pump heat source device is continuously operated for a predetermined time, the operation is stopped, and the heat pump heat source device is protected and unnecessary heating is prevented.

以上のように、本発明のヒートポンプ式温水暖房装置は、既設の給湯用熱交換器を備えた貯湯用タンクを使用して運転した場合でも、貯湯用タンク内の給湯用温水の温度を十分
に上昇させることができるため、従来の石油やガスを使用したボイラ等を熱源とする温水暖房装置や電気ヒータを熱源とした温水暖房装置にも有用である。 As described above, the heat pump type hot water heating apparatus of the present invention can sufficiently maintain the temperature of hot water for hot water in the hot water storage tank even when operated using a hot water storage tank equipped with an existing hot water supply heat exchanger. Since it can raise, it is useful also for the hot water heating apparatus which used the boiler etc. which used the conventional oil and gas as a heat source, and the hot water heating apparatus which used the electric heater as the heat source.

１ ヒートポンプ式熱源器
３ 貯湯用タンク
４ 水冷媒熱交換器
５ 給湯用熱交換器
６ 循環ポンプ
７ 三方弁
１３ 循環温水用温度センサ
１４ 給湯温水用温度センサ DESCRIPTION OF SYMBOLS 1 Heat pump type heat source device 3 Hot water storage tank 4 Water refrigerant heat exchanger 5 Heat exchanger for hot water supply 6 Circulation pump 7 Three-way valve 13 Temperature sensor for circulating hot water 14 Temperature sensor for hot water hot water

Claims (5)

ヒートポンプ式熱源器と、前記ヒートポンプ式熱源器で加熱した冷媒と水とを熱交換する水冷媒熱交換器と、前記水冷媒熱交換器にて加熱された循環用温水を循環させる循環ポンプと、給湯用温水を貯湯する貯湯用タンクと、前記循環用温水と前記給湯用温水とを熱交換する給湯用熱交換器と、制御手段とを備え、前記制御手段が、前記ヒートポンプ式熱源器を複数回繰り返し運転させることで、前記給湯用温水を加熱することを特徴とするヒートポンプ式温水暖房装置。 A heat pump heat source, a water refrigerant heat exchanger that exchanges heat between the refrigerant heated by the heat pump heat source and water, a circulation pump that circulates the circulating hot water heated by the water refrigerant heat exchanger, A hot water storage tank for storing hot water for hot water supply, a hot water supply heat exchanger for exchanging heat between the hot water for circulation and the hot water for hot water supply, and a control means, wherein the control means includes a plurality of the heat pump heat source devices. The heat pump type hot water heating apparatus is characterized in that the hot water for hot water supply is heated by being repeatedly operated. 前記循環用温水の温度を検出する温度センサを備え、前記ヒートポンプ式熱源器の運転を停止する高温側設定温度を設けたことを特徴とする請求項１に記載のヒートポンプ式温水暖房装置。 The heat pump type hot water heating apparatus according to claim 1, further comprising a temperature sensor that detects a temperature of the circulating hot water and provided with a high temperature side set temperature for stopping the operation of the heat pump type heat source device. 前記ヒートポンプ式熱源器が運転を再開する低温側設定温度を設けたことを特徴とする請求項１または２に記載のヒートポンプ式温水暖房装置。 The heat pump type hot water heater according to claim 1 or 2, wherein the heat pump type heat source device is provided with a low temperature side set temperature at which the operation is resumed. 前記給湯用温水の温度を検出する温度センサを備え、前記温度センサが所定温度を検出すると、前記ヒートポンプ式熱源器の運転を停止することを特徴とする請求項１〜３のいずれか１項に記載のヒートポンプ式温水暖房装置。 The temperature sensor which detects the temperature of the hot water for hot water supply is provided, and the operation of the heat pump heat source device is stopped when the temperature sensor detects a predetermined temperature. The heat pump type hot water heater described. 前記ヒートポンプ式熱源器が、予め設定された所定時間を連続運転すると、前記ヒートポンプ式熱源器の運転を停止することを特徴とする請求項１〜４のいずれか１項に記載のヒートポンプ式温水暖房装置。 The heat pump hot water heater according to any one of claims 1 to 4, wherein when the heat pump heat source device is continuously operated for a predetermined time set in advance, the operation of the heat pump heat source device is stopped. apparatus.
JP2012023611A 2012-02-07 2012-02-07 Heat pump type hydronic heater Pending JP2013160467A (en)

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JP2012023611A JP2013160467A (en) 2012-02-07 2012-02-07 Heat pump type hydronic heater
EP13153750.8A EP2626640A3 (en) 2012-02-07 2013-02-01 Heat pump hydronic heater
CN2013100475858A CN103244985A (en) 2012-02-07 2013-02-06 Heat pump hydronic heater

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