JP5822671B2 - Heat medium supply device - Google Patents

Heat medium supply device Download PDF

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JP5822671B2
JP5822671B2 JP2011251875A JP2011251875A JP5822671B2 JP 5822671 B2 JP5822671 B2 JP 5822671B2 JP 2011251875 A JP2011251875 A JP 2011251875A JP 2011251875 A JP2011251875 A JP 2011251875A JP 5822671 B2 JP5822671 B2 JP 5822671B2
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heating
heat
medium
heat exchanger
burner
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JP2013108642A (en
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輝 森田
輝 森田
早川　秀樹
秀樹 早川
山口　秀樹
秀樹 山口
義通 木内
義通 木内
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Osaka Gas Co Ltd
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Description

本発明は、給水路からの水を給湯用熱交換器にて加熱して給湯路に供給する給湯回路と、暖房端末からの熱媒を暖房加熱部にて加熱して前記暖房端末に供給する暖房回路を備え、前記暖房加熱部として、バーナ加熱式熱交換器とヒートポンプ加熱式熱交換器とが設けられ、前記暖房回路が、膨張タンク及び暖房用熱媒循環ポンプを備えて、前記バーナ加熱式熱交換器にて熱媒を加熱するバーナ加熱状態と前記ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態とに切換自在に構成され、前記バーナ加熱式熱交換器にて加熱された熱媒を前記給湯用熱交換器に供給して給水路からの水を加熱可能に構成されている熱媒供給装置に関する。   The present invention provides a hot water supply circuit that heats water from a water supply path with a heat exchanger for hot water supply and supplies the water to the hot water supply path, and heats a heating medium from a heating terminal at a heating heating unit and supplies the heating medium to the heating terminal. A heating circuit is provided, and as the heating and heating unit, a burner heating type heat exchanger and a heat pump heating type heat exchanger are provided, and the heating circuit includes an expansion tank and a heating medium circulation pump for heating, and the burner heating It is configured to be switchable between a burner heating state in which the heat medium is heated by the heat exchanger and a heat pump heating state in which the heat medium is heated by the heat pump heating heat exchanger, and is heated by the burner heating heat exchanger The present invention relates to a heat medium supply device configured to supply the heated heat medium to the hot water supply heat exchanger so as to heat water from a water supply path.

上述のように、暖房端末からの熱媒を加熱する暖房加熱部として、バーナ加熱式熱交換器とヒートポンプ加熱式熱交換器とが設けられた熱媒供給装置では、暖房負荷等の各種条件に基づいてヒートポンプ装置のＣＯＰ（成績係数）を算定し、ＣＯＰが高くなる領域では、ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態に切り換え、ＣＯＰが低くなる領域では、バーナ加熱式熱交換器にて熱媒を加熱するバーナ加熱状態に切り換えて運転することが可能となり、省エネ性の向上を図ることができる。
このようなバーナ加熱式熱交換器とヒートポンプ加熱式熱交換器を備えた熱媒供給装置はすでに公知であるが、その従来公知の熱媒供給装置では、バーナ加熱式熱交換器にて加熱された熱媒により給水路からの水を加熱可能な給湯用熱交換器が設けられていない（例えば、特許文献１参照）。
また、バーナ加熱式熱交換器にて加熱された熱媒により給水路からの水を加熱可能な給湯用熱交換器は備えているものの、暖房加熱部として、ヒートポンプ加熱式熱交換器を備えずに、バーナ加熱式熱交換器のみ備えた熱媒供給装置も知られている（例えば、特許文献２参照）。 As described above, in the heating medium supply device provided with the burner heating type heat exchanger and the heat pump heating type heat exchanger as the heating heating unit for heating the heating medium from the heating terminal, various conditions such as heating load are applied. Based on this, the COP (coefficient of performance) of the heat pump device is calculated. In a region where the COP is high, the heat pump heating type heat exchanger is switched to a heat pump heating state in which the heat medium is heated, and in a region where the COP is low, a burner heating type is used. It is possible to operate by switching to a burner heating state in which the heat medium is heated by the heat exchanger, and energy saving can be improved.
A heating medium supply device having such a burner heating type heat exchanger and a heat pump heating type heat exchanger is already known. However, in the conventionally known heating medium supply device, it is heated by a burner heating type heat exchanger. There is no hot water supply heat exchanger that can heat the water from the water supply channel using the heat medium (see, for example, Patent Document 1).
In addition, although it has a hot water supply heat exchanger that can heat water from the water supply channel using a heat medium heated by a burner heating type heat exchanger, it does not have a heat pump heating type heat exchanger as a heating / heating unit. In addition, a heat medium supply device having only a burner heating type heat exchanger is also known (see, for example, Patent Document 2).

特開２０１１−４３３２１号公報JP 2011-43321 A 特開２００７−３１５７００号公報JP 2007-315700 A

上記特許文献１に記載の装置は、図９（特許文献１の図２をそのまま記載したもの）に示すような構成であり、ヒートポンプ装置１６のヒートポンプ加熱式熱交換器１７にて熱媒を加熱するヒートポンプ加熱状態では、図中太線にて示すように、低温暖房端末８ｂからの熱媒が、熱媒戻り路３１から第１熱媒バイパス路３９を通して第１熱媒路３２に流入する。そして、その第１熱媒路３２を通流する熱媒に対して、ヒートポンプ加熱式熱交換器１７にて加熱された後の熱媒が、第２熱媒路３５を通して合流し、合流した後の熱媒が、膨張タンク３３、熱媒循環ポンプ３４を通過したのち、その一部が第２熱媒バイパス路４１を通流してヒートポンプ加熱式熱交換器１７に供給される。
このように、低温暖房端末８ｂからの熱媒に対して、ヒートポンプ加熱式熱交換器１７で加熱された熱媒が合流し、その合流により温度が上昇した熱媒がヒートポンプ加熱式熱交換器１７に供給されるので、ヒートポンプ加熱式熱交換器１７での熱回収（熱媒への熱供給）が低下し、ヒートポンプ装置を効率よく運転しているとは言い難い欠点があった。 The apparatus described in Patent Document 1 has a configuration as shown in FIG. 9 (the one described in FIG. 2 of Patent Document 1 as it is), and heats the heating medium by the heat pump heating type heat exchanger 17 of the heat pump apparatus 16. In the heat pump heating state, the heat medium from the low temperature heating terminal 8b flows from the heat medium return path 31 into the first heat medium path 32 through the first heat medium bypass path 39 as indicated by the thick line in the figure. Then, after the heat medium heated by the heat pump heating type heat exchanger 17 is merged through the second heat medium path 35 and merged with the heat medium flowing through the first heat medium path 32. After passing through the expansion tank 33 and the heat medium circulation pump 34, a part of the heat medium flows through the second heat medium bypass passage 41 and is supplied to the heat pump heating type heat exchanger 17.
In this way, the heat medium heated by the heat pump heating type heat exchanger 17 is joined to the heat medium from the low temperature heating terminal 8b, and the heat medium whose temperature is increased by the joining is the heat pump heating type heat exchanger 17. Therefore, heat recovery (heat supply to the heat medium) in the heat pump heating type heat exchanger 17 is lowered, and it is difficult to say that the heat pump device is operated efficiently.

このような欠点を解消するためには、低温暖房端末８ｂからの熱媒の全量又はその一部をヒートポンプ加熱式熱交換器１７へ直接供給するように構成することが考えられる。かかる技術的思想を反映させた上で、上記特許文献２に記載の装置、つまり、バーナ加熱式熱交換器にて加熱された熱媒を給湯用熱交換器に供給して給水路からの水を加熱可能に構成した装置に対して、暖房加熱部としてのヒートポンプ加熱式熱交換器を追加して組み込む場合、図８に示すような構成が考えられる（なお、図８に示す装置では、理解を容易にするため、図９に示す従来公知の装置及び後述する本願発明に係る装置と共通する構成部品及び同じ作用を有する構成部品については同じ符号を付してある）。   In order to eliminate such drawbacks, it can be considered that the entire amount or a part of the heat medium from the low temperature heating terminal 8b is directly supplied to the heat pump heating type heat exchanger 17. Reflecting this technical idea, the apparatus described in Patent Document 2, that is, the heat medium heated by the burner heating type heat exchanger is supplied to the hot water supply heat exchanger to supply water from the water supply channel. When a heat pump heating type heat exchanger as a heating / heating unit is additionally installed in the apparatus configured to be capable of heating, a configuration as shown in FIG. 8 is conceivable (in the apparatus shown in FIG. For the sake of facilitating the description, the same reference numerals are given to the components common to the conventionally known device shown in FIG. 9 and the device according to the present invention described later and the components having the same action).

この図８の装置を参照して説明すると、ヒートポンプ装置１６のヒートポンプ加熱式熱交換器１７にて熱媒を加熱するヒートポンプ加熱状態では、図中太線にて示すように、低温暖房端末８ｂからの熱媒が、低温熱媒戻り路３１ｂとヒートポンプ用熱媒路６１を通してヒートポンプ加熱式熱交換器１７へ直接供給されるので、ヒートポンプ加熱式熱交換器１７での熱回収の低下が回避されてヒートポンプ装置を効率よく運転することができる。
そして、ヒートポンプ加熱式熱交換器１７にて加熱された熱媒は、その後、熱媒戻り路３１を通流して膨張タンク３３及び熱媒循環ポンプ３４を通過したのち、バーナ潜熱加熱式熱交換器１５ａを通流し、一部の熱媒は低温往き路３６を通して低温暖房端末８ｂに供給される。ところが、残りの熱媒はバーナ顕熱加熱式熱交換器１５ｂを通流し、第２熱媒路３５と循環用バイパス路７０を通して給湯用熱交換器７１に供給されるので、このヒートポンプ加熱状態の実行中に給湯運転が要求されると、バーナ１３の燃焼によってバーナ潜熱加熱式熱交換器１５ａ及びバーナ顕熱加熱式熱交換器１５ｂを通流する熱媒が加熱される。その結果、必要以上に加熱された高温の熱媒が、膨張タンク３３及び熱媒循環ポンプ３４を通過したのち、バーナ潜熱加熱式熱交換器１５ａを通流し、低温暖房端末８ｂを通してヒートポンプ加熱式熱交換器１７に供給され、結局、ヒートポンプ加熱式熱交換器１７での熱回収が低下することになる。 If it demonstrates with reference to this apparatus of FIG. 8, in the heat pump heating state which heats a heat medium with the heat pump heating type heat exchanger 17 of the heat pump apparatus 16, as shown by the thick line in a figure, from the low temperature heating terminal 8b, Since the heat medium is directly supplied to the heat pump heating type heat exchanger 17 through the low temperature heat medium return path 31b and the heat medium for heat pump 61, a reduction in heat recovery in the heat pump heating type heat exchanger 17 is avoided, and the heat pump The apparatus can be operated efficiently.
The heat medium heated by the heat pump heating type heat exchanger 17 then flows through the heat medium return path 31 and passes through the expansion tank 33 and the heat medium circulation pump 34, and then the burner latent heat heating type heat exchanger. A part of the heat medium is supplied to the low temperature heating terminal 8b through the low temperature outgoing path 36. However, since the remaining heat medium flows through the burner sensible heat type heat exchanger 15b and is supplied to the hot water supply heat exchanger 71 through the second heat medium path 35 and the circulation bypass path 70, the heat pump is heated. When a hot water supply operation is required during execution, the heat medium flowing through the burner latent heat heating type heat exchanger 15a and the burner sensible heat type heat exchanger 15b is heated by combustion of the burner 13. As a result, the high-temperature heating medium heated more than necessary passes through the expansion tank 33 and the heating medium circulation pump 34, then flows through the burner latent heat heating heat exchanger 15a, and passes through the low-temperature heating terminal 8b. After being supplied to the exchanger 17, the heat recovery in the heat pump heating type heat exchanger 17 is lowered.

本発明は、このような問題点に着目したもので、その目的は、バーナ加熱式熱交換器にて加熱された熱媒を給湯用熱交換器に供給して給水路からの水を加熱可能に構成された熱媒供給装置で、ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態において、ヒートポンプ装置を効率よく運転することを可能にして、より一層の省エネ性向上を図り得る熱媒供給装置を提供することにある。   The present invention pays attention to such problems, and the purpose thereof is to supply the heat medium heated by the burner heating type heat exchanger to the hot water supply heat exchanger to heat the water from the water supply channel. With the heat medium supply device configured as described above, in the heat pump heating state in which the heat medium is heated by the heat pump heating type heat exchanger, the heat pump device can be operated efficiently, and further energy saving can be improved. The object is to provide a heating medium supply device.

この目的を達成するため、本発明に係る熱媒供給装置の特徴構成は、給水路からの水を給湯用熱交換器にて加熱して給湯路に供給する給湯回路と、暖房端末からの熱媒を暖房加熱部にて加熱して前記暖房端末に供給する暖房回路を備え、前記暖房加熱部として、バーナ加熱式熱交換器とヒートポンプ加熱式熱交換器とが設けられ、前記暖房回路が、膨張タンク及び暖房用熱媒循環ポンプを備えて、前記バーナ加熱式熱交換器にて熱媒を加熱するバーナ加熱状態と前記ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態とに切換自在に構成され、前記バーナ加熱式熱交換器にて加熱された熱媒を前記給湯用熱交換器に供給して給水路からの水を加熱可能に構成されている熱媒供給装置であって、前記暖房端末からの熱媒の全量又はその一部を前記ヒートポンプ加熱式熱交換器に供給して暖房端末へ循環させるヒートポンプ用熱媒循環路が、前記バーナ加熱式熱交換器、給湯用熱交換器、膨張タンク、及び、暖房用熱媒循環ポンプをバイパスする状態で設けられ、そのヒートポンプ用熱媒循環路にヒートポンプ用熱媒循環ポンプが設けられ、前記暖房端末からの熱媒を前記バーナ加熱式熱交換器に供給して暖房端末へ循環させるバーナ用熱媒循環路が、前記膨張タンク及び暖房用熱媒循環ポンプを備えて設けられ、前記ヒートポンプ加熱式熱交換器により加熱された熱媒を前記バーナ用熱媒循環路の一部を介して前記膨張タンク及び暖房用熱媒循環ポンプに供給する蓄熱運転が可能な点にある。
In order to achieve this object, the characteristic configuration of the heating medium supply device according to the present invention includes a hot water supply circuit that heats water from a water supply channel using a heat exchanger for hot water supply and supplies the hot water supply channel, and heat from a heating terminal. A heating circuit that heats the medium in a heating heating unit and supplies the medium to the heating terminal is provided, and as the heating heating unit, a burner heating type heat exchanger and a heat pump heating type heat exchanger are provided, and the heating circuit includes: An expansion tank and a heating medium circulation pump for heating are provided, and a burner heating state in which the heating medium is heated by the burner heating type heat exchanger and a heat pump heating state in which the heating medium is heated by the heat pump heating type heat exchanger. A heat medium supply device configured to be switchable and configured to be able to heat water from a water supply channel by supplying a heat medium heated by the burner heating type heat exchanger to the hot water supply heat exchanger. All of the heating medium from the heating terminal Alternatively, a heat medium circulation path for a heat pump that supplies a part thereof to the heat pump heating type heat exchanger and circulates it to the heating terminal is the burner heating type heat exchanger, a hot water supply heat exchanger, an expansion tank, and a heating unit. A heat medium circulation pump is provided in a state bypassing the heat medium circulation pump, a heat medium circulation pump for the heat pump is provided in the heat medium circulation path for the heat pump, and the heating medium from the heating terminal is supplied to the burner heating type heat exchanger for heating. A heating medium circulation path for the burner to be circulated to a terminal is provided with the expansion tank and a heating medium circulation pump for heating, and the heating medium heated by the heat pump heating type heat exchanger is provided in the heating medium circulation path for the burner. The heat storage operation that supplies the expansion tank and the heating medium circulating pump for heating through a part is possible .

上記特徴構成によれば、暖房端末からの熱媒の全量又はその一部をヒートポンプ加熱式熱交換器に供給して暖房端末へ循環させるヒートポンプ用熱媒循環路が設けられ、そのヒートポンプ用熱媒循環路にヒートポンプ用熱媒循環ポンプが設けられているので、ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態において、ヒートポンプ用熱媒循環ポンプを作動させることによって、暖房端末からの熱媒をそのままヒートポンプ加熱式熱交換器へ直接供給することができ、また、ヒートポンプ加熱式熱交換器にて加熱された熱媒を暖房端末へ直接供給することができる。したがって、ヒートポンプ装置を効率よく運転することができ、その結果、暖房端末に熱媒を供給する暖房時において、ヒートポンプ加熱状態とバーナ加熱状態との切り換え運転により省エネ性の向上を図り得るのに加えて、ヒートポンプ加熱状態において一層の効率化を図ることが可能となる。
そして、そのヒートポンプ用熱媒循環路が、バーナ加熱式熱交換器、給湯用熱交換器、膨張タンク、及び、暖房用熱媒循環ポンプをバイパスする状態で設けられているので、たとえヒートポンプ加熱状態の実行中に給湯運転が要求されてバーナが燃焼しても、ヒートポンプ加熱式熱交換器により加熱された熱媒がそのバーナの燃焼により加熱されることはない。
その結果、バーナ加熱式熱交換器にて加熱された熱媒を給湯用熱交換器に供給して給水路からの水を加熱可能に構成されている熱媒供給装置であっても、ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態において、ヒートポンプ装置を効率よく運転して省エネ性向上を図ることができる。
更に、上記特徴構成によれば、暖房端末からの熱媒をバーナ加熱式熱交換器に供給して暖房端末へ循環させるバーナ用熱媒循環路が、膨張タンク及び暖房用熱媒循環ポンプを備えて設けられているので、バーナ加熱式熱交換器にて熱媒を加熱するバーナ加熱状態においては、暖房用熱媒循環ポンプの作動によってバーナ加熱状態を確実に実行することができる。
そして、ヒートポンプ加熱式熱交換器により加熱された熱媒をバーナ用熱媒循環路の一部を介して膨張タンク及び暖房用熱媒循環ポンプに供給する蓄熱運転が可能に構成されているので、バーナ用熱媒循環路に備えられた膨張タンク及び暖房用熱媒循環ポンプを有効に利用して、ヒートポンプ加熱式熱交換器による蓄熱運転を行うことができる。
また、上記目的を達成するため、本発明に係る熱媒供給装置の特徴構成は、給水路からの水を給湯用熱交換器にて加熱して給湯路に供給する給湯回路と、暖房端末からの熱媒を暖房加熱部にて加熱して前記暖房端末に供給する暖房回路を備え、前記暖房加熱部として、バーナ加熱式熱交換器とヒートポンプ加熱式熱交換器とが設けられ、前記暖房回路が、膨張タンク及び暖房用熱媒循環ポンプを備えて、前記バーナ加熱式熱交換器にて熱媒を加熱するバーナ加熱状態と前記ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態とに切換自在に構成され、前記バーナ加熱式熱交換器にて加熱された熱媒を前記給湯用熱交換器に供給して給水路からの水を加熱可能に構成されている熱媒供給装置であって、前記暖房端末からの熱媒の全量又はその一部を前記ヒートポンプ加熱式熱交換器に供給して暖房端末へ循環させるヒートポンプ用熱媒循環路が、前記バーナ加熱式熱交換器、給湯用熱交換器、膨張タンク、及び、暖房用熱媒循環ポンプをバイパスする状態で設けられ、そのヒートポンプ用熱媒循環路にヒートポンプ用熱媒循環ポンプが設けられ、
前記ヒートポンプ加熱式熱交換器が、前記暖房端末からの熱媒を前記バーナ加熱式熱交換器へ戻す熱媒戻り路と、そのバーナ加熱式熱交換器にて加熱された熱媒を前記暖房端末に供給する熱媒往き路との間にわたって設けられている点にある。
上記特徴構成によれば、暖房端末からの熱媒の全量又はその一部をヒートポンプ加熱式熱交換器に供給して暖房端末へ循環させるヒートポンプ用熱媒循環路が設けられ、そのヒートポンプ用熱媒循環路にヒートポンプ用熱媒循環ポンプが設けられているので、ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態において、ヒートポンプ用熱媒循環ポンプを作動させることによって、暖房端末からの熱媒をそのままヒートポンプ加熱式熱交換器へ直接供給することができ、また、ヒートポンプ加熱式熱交換器にて加熱された熱媒を暖房端末へ直接供給することができる。したがって、ヒートポンプ装置を効率よく運転することができ、その結果、暖房端末に熱媒を供給する暖房時において、ヒートポンプ加熱状態とバーナ加熱状態との切り換え運転により省エネ性の向上を図り得るのに加えて、ヒートポンプ加熱状態において一層の効率化を図ることが可能となる。
そして、そのヒートポンプ用熱媒循環路が、バーナ加熱式熱交換器、給湯用熱交換器、膨張タンク、及び、暖房用熱媒循環ポンプをバイパスする状態で設けられているので、たとえヒートポンプ加熱状態の実行中に給湯運転が要求されてバーナが燃焼しても、ヒートポンプ加熱式熱交換器により加熱された熱媒がそのバーナの燃焼により加熱されることはない。
その結果、バーナ加熱式熱交換器にて加熱された熱媒を給湯用熱交換器に供給して給水路からの水を加熱可能に構成されている熱媒供給装置であっても、ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態において、ヒートポンプ装置を効率よく運転して省エネ性向上を図ることができる。
さらに、上記特徴構成によれば、ヒートポンプ加熱式熱交換器が、暖房端末からの熱媒をバーナ加熱式熱交換器へ戻す熱媒戻り路と、そのバーナ加熱式熱交換器にて加熱された熱媒を暖房端末に供給する熱媒往き路との間にわたって設けられているので、熱媒戻り路と熱媒往き路を共用する状態で、バーナ加熱状態とヒートポンプ加熱状態とを確実に実行することができる。
According to the above characteristic configuration, the heat pump heating medium circulation path is provided for supplying the heat pump heating heat exchanger to the heat pump heating type heat exchanger and circulating it to the heating terminal, and the heat pump heating medium. Since the heat medium circulation pump for the heat pump is provided in the circulation path, in the heat pump heating state in which the heat medium is heated by the heat pump heating type heat exchanger, by operating the heat medium circulation pump for the heat pump, from the heating terminal The heat medium can be directly supplied to the heat pump heating type heat exchanger as it is, and the heat medium heated by the heat pump heating type heat exchanger can be directly supplied to the heating terminal. Therefore, the heat pump device can be operated efficiently, and as a result, energy saving can be improved by switching between the heat pump heating state and the burner heating state during heating for supplying the heating medium to the heating terminal. Thus, further efficiency can be achieved in the heat pump heating state.
And since the heat medium circulation path for the heat pump is provided in a state of bypassing the burner heating type heat exchanger, the hot water supply heat exchanger, the expansion tank, and the heating medium circulation pump for heating, even in the heat pump heating state Even if the hot water supply operation is required during the operation of the burner and the burner burns, the heat medium heated by the heat pump heating type heat exchanger is not heated by the combustion of the burner.
As a result, even if the heat medium supply device is configured to supply the heat medium heated by the burner heating type heat exchanger to the heat exchanger for hot water supply and heat the water from the water supply channel, the heat pump heating In the heat pump heating state in which the heat medium is heated by the heat exchanger, the heat pump device can be efficiently operated to improve energy saving.
Further, according to the above characteristic configuration, the heating medium circulation path for the burner for supplying the heating medium from the heating terminal to the burner heating type heat exchanger and circulating it to the heating terminal includes the expansion tank and the heating medium circulation pump for heating. Therefore, in the burner heating state in which the heat medium is heated by the burner heating type heat exchanger, the burner heating state can be reliably executed by the operation of the heating medium circulating pump.
And since the heat storage operation that supplies the heating medium heated by the heat pump heating type heat exchanger to the expansion tank and the heating medium circulation pump for heating via a part of the heating medium circulation path for the burner is possible, The heat storage operation by the heat pump heating type heat exchanger can be performed by effectively using the expansion tank and the heating medium circulating pump provided in the heating medium circulation path for the burner.
Moreover, in order to achieve the said objective, the characteristic structure of the heat-medium supply apparatus which concerns on this invention consists of the hot water supply circuit which heats the water from a water supply path with the heat exchanger for hot water supply, and supplies it to a hot water supply path, and a heating terminal. A heating circuit that heats the heating medium in a heating heating unit and supplies the heating medium to the heating terminal, wherein the heating heating unit includes a burner heating type heat exchanger and a heat pump heating type heat exchanger, and the heating circuit Is provided with an expansion tank and a heating medium circulation pump for heating, and a burner heating state in which the heating medium is heated by the burner heating type heat exchanger and a heat pump heating state in which the heating medium is heated by the heat pump heating type heat exchanger The heat medium supply device is configured to be able to heat the water from the water supply path by supplying the heat medium heated by the burner heating type heat exchanger to the hot water supply heat exchanger. And heat from the heating terminal A heat medium circulation path for a heat pump that circulates to the heating terminal by supplying the whole amount or a part thereof to the heat pump heating type heat exchanger, the burner heating type heat exchanger, a heat exchanger for hot water supply, an expansion tank, and It is provided in a state of bypassing the heating medium circulation pump for heating, the heat medium circulation pump for the heat pump is provided in the heat medium circulation path for the heat pump,
The heat pump heating type heat exchanger returns the heating medium from the heating terminal to the burner heating type heat exchanger, and the heating medium is heated by the burner heating type heat exchanger. It is in the point provided between the heat-medium going path which supplies to.
According to the above characteristic configuration, the heat pump heating medium circulation path is provided for supplying the heat pump heating heat exchanger to the heat pump heating type heat exchanger and circulating it to the heating terminal, and the heat pump heating medium. Since the heat medium circulation pump for the heat pump is provided in the circulation path, in the heat pump heating state in which the heat medium is heated by the heat pump heating type heat exchanger, by operating the heat medium circulation pump for the heat pump, from the heating terminal The heat medium can be directly supplied to the heat pump heating type heat exchanger as it is, and the heat medium heated by the heat pump heating type heat exchanger can be directly supplied to the heating terminal. Therefore, the heat pump device can be operated efficiently, and as a result, energy saving can be improved by switching between the heat pump heating state and the burner heating state during heating for supplying the heating medium to the heating terminal. Thus, further efficiency can be achieved in the heat pump heating state.
And since the heat medium circulation path for the heat pump is provided in a state of bypassing the burner heating type heat exchanger, the hot water supply heat exchanger, the expansion tank, and the heating medium circulation pump for heating, even in the heat pump heating state Even if the hot water supply operation is required during the operation of the burner and the burner burns, the heat medium heated by the heat pump heating type heat exchanger is not heated by the combustion of the burner.
As a result, even if the heat medium supply device is configured to supply the heat medium heated by the burner heating type heat exchanger to the heat exchanger for hot water supply and heat the water from the water supply channel, the heat pump heating In the heat pump heating state in which the heat medium is heated by the heat exchanger, the heat pump device can be efficiently operated to improve energy saving.
Furthermore, according to the said characteristic structure, the heat pump heating type heat exchanger was heated with the heat-medium return path which returns the heating medium from a heating terminal to a burner heating type heat exchanger, and the burner heating type heat exchanger. Since it is provided between the heating medium return path for supplying the heating medium to the heating terminal, the burner heating state and the heat pump heating state are reliably executed in a state where the heating medium return path and the heating medium return path are shared. be able to.

本発明に係る熱媒供給装置の更なる特徴構成は、前記ヒートポンプ加熱式熱交換器が、前記暖房端末からの熱媒を前記バーナ加熱式熱交換器へ戻す熱媒戻り路と、そのバーナ加熱式熱交換器にて加熱された熱媒を前記暖房端末に供給する熱媒往き路との間にわたって設けられている点にある。   A further characteristic configuration of the heat medium supply device according to the present invention is that the heat pump heating type heat exchanger returns a heating medium from the heating terminal to the burner heating type heat exchanger, and the burner heating thereof. It exists in the point provided between the heating-medium going path which supplies the heating medium heated with the type | formula heat exchanger to the said heating terminal.

上記特徴構成によれば、ヒートポンプ加熱式熱交換器が、暖房端末からの熱媒をバーナ加熱式熱交換器へ戻す熱媒戻り路と、そのバーナ加熱式熱交換器にて加熱された熱媒を暖房端末に供給する熱媒往き路との間にわたって設けられているので、熱媒戻り路と熱媒往き路を共用する状態で、バーナ加熱状態とヒートポンプ加熱状態とを確実に実行することができる。   According to the above characteristic configuration, the heat pump heating type heat exchanger has a heating medium return path for returning the heating medium from the heating terminal to the burner heating type heat exchanger, and the heating medium heated by the burner heating type heat exchanger. Since the heat medium return path and the heat medium return path are shared, the burner heating state and the heat pump heating state can be reliably executed in a state where the heat medium return path and the heat medium return path are shared. it can.

本発明に係る熱媒供給装置の更なる特徴構成は、前記ヒートポンプ加熱式熱交換器及びヒートポンプ用熱媒循環ポンプ等を備えたヒートポンプ装置が、前記給湯用熱交換器、バーナ加熱式熱交換器、膨張タンク、及び、暖房用熱媒循環ポンプ等を備えた給湯装置と別体に構成されている点にある。   A further characteristic configuration of the heat medium supply apparatus according to the present invention is that the heat pump apparatus including the heat pump heating type heat exchanger and the heat medium circulation pump for the heat pump includes the hot water supply heat exchanger and the burner heating type heat exchanger. In the point which is comprised separately from the hot-water supply apparatus provided with the expansion tank, the heating-medium circulation pump for heating, etc.

上記特徴構成によれば、ヒートポンプ装置が給湯装置と別体に構成されているので、給湯装置にヒートポンプ装置を外付けすることが可能となり、例えば、既存の給湯装置に対しても、比較的簡単にヒートポンプ装置を組み付けることができる。   According to the above characteristic configuration, since the heat pump device is configured separately from the hot water supply device, it is possible to externally attach the heat pump device to the hot water supply device. For example, it is relatively easy for an existing hot water supply device. A heat pump device can be assembled to the.

本発明による熱媒供給装置のバーナ加熱状態を示す概略構成図The schematic block diagram which shows the burner heating state of the heat-medium supply apparatus by this invention 本発明による熱媒供給装置のヒートポンプ加熱状態を示す概略構成図The schematic block diagram which shows the heat pump heating state of the heat-medium supply apparatus by this invention 本発明による熱媒供給装置の蓄熱運転状態を示す概略構成図The schematic block diagram which shows the thermal storage driving | running state of the heat-medium supply apparatus by this invention 時間経過に伴う運転モードの変化を示す図Diagram showing changes in operation mode over time 運転モード毎にバーナ加熱状態とヒートポンプ加熱状態とに切り換えた場合の１次エネルギー消費量と、その算定の基準を示す図表Chart showing the primary energy consumption when switching between the burner heating state and the heat pump heating state for each operation mode, and the calculation criteria 本発明による熱媒供給装置の別実施形態を示す要部の概略構成図The schematic block diagram of the principal part which shows another embodiment of the heat-medium supply apparatus by this invention. 本発明による熱媒供給装置の別実施形態のバーナ加熱状態を示す概略構成図The schematic block diagram which shows the burner heating state of another embodiment of the heat-medium supply apparatus by this invention 本発明の前段階における熱媒供給装置のヒートポンプ加熱状態を示す概略構成図The schematic block diagram which shows the heat pump heating state of the heat-medium supply apparatus in the previous step of this invention 先行技術文献に記載された熱媒供給装置Heat medium supply device described in prior art document

本発明に係る熱媒供給装置の実施形態を図面に基づいて説明する。
この熱媒供給装置は、図１〜図３に示すように、給湯装置１とその給湯装置１と別体に構成されて外付けされたヒートポンプ装置１６とを備え、給湯装置１は、一般家庭用の水道管に接続された給水路２からの水を給湯用バーナ潜熱加熱式熱交換器３と給湯用熱交換器７１にて加熱してその加熱された湯水を給湯栓４等が接続された給湯路５に供給する給湯回路６と、暖房端末８からの熱媒を暖房加熱部７にて加熱してその加熱された熱媒を暖房端末８に供給する暖房回路９と、暖房加熱部７にて加熱された熱媒により浴槽１０の湯水をふろ熱交換器１１にて加熱してその加熱された湯水を浴槽１０に供給する追焚回路１２とを備えている。
暖房端末８として、高温の熱媒（例えば８０℃の熱媒）が要求される高温暖房端末８ａ（例えば浴室乾燥装置）とその高温暖房端末８ａよりも低温の熱媒（例えば４０〜７５℃の熱媒）が要求される低温暖房端末８ｂ（例えば床暖房パネル）とが備えられている。 An embodiment of a heat medium supply device according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the heat medium supply device includes a hot water supply device 1 and a heat pump device 16 that is configured separately from the hot water supply device 1 and is externally attached. The water from the water supply channel 2 connected to the water pipe for heating is heated by a hot water supply burner latent heat heating type heat exchanger 3 and a hot water supply heat exchanger 71, and the heated hot water is connected to a hot water tap 4 or the like. A hot water supply circuit 6 to be supplied to the hot water supply path 5, a heating circuit 9 for heating the heating medium from the heating terminal 8 at the heating heating unit 7 and supplying the heated heating medium to the heating terminal 8, and a heating heating unit And a heating circuit 12 for heating the hot water in the bathtub 10 by the bath heat exchanger 11 and supplying the heated hot water to the bathtub 10.
As the heating terminal 8, a high-temperature heating terminal 8a (for example, a bathroom drying device) that requires a high-temperature heating medium (for example, a heating medium at 80 ° C.) and a heating medium that has a temperature lower than that of the high-temperature heating terminal 8a (for example, 40 to 75 ° C.) A low-temperature heating terminal 8b (for example, a floor heating panel) that requires a heating medium) is provided.

給湯回路６における給湯用バーナ潜熱加熱式熱交換器３は、バーナ１３の燃焼による燃焼ガスの潜熱により給水路２からの水を加熱するように構成され、暖房回路９における暖房加熱部７として、給湯用バーナ潜熱加熱式熱交換器３と同じ単一のバーナ１３の燃焼により同時に熱媒を加熱するバーナ加熱式熱交換器１５と、ヒートポンプ装置１６の媒体により熱媒を加熱するヒートポンプ加熱式熱交換器１７とを備えている。そして、熱媒用のバーナ加熱式熱交換器１５は、バーナ１３の燃焼ガスの潜熱により熱媒を加熱するバーナ潜熱加熱式熱交換器１５ａと、バーナ１３の燃焼ガスの顕熱により熱媒を加熱するバーナ潜熱加熱式熱交換器１５ｂとから構成されて、いわゆる１缶３水形式に構成されている。
バーナ１３には、一般家庭用の燃料ガスを供給するガス供給路１８が接続され、そのガス供給路１８には、燃料ガスの供給を断続する断続弁１９と燃料ガス供給量を調整するガス比例弁２０が設けられている。また、バーナ１３には、燃焼用空気を供給する燃焼用ファンＦも設けられ、図示は省略するが、バーナ１３の近くには、バーナ１３に対する点火動作を実行する点火用のイグナイタ及び着火されたか否かを検出するフレームロッド等も設けられている。 The hot water supply burner latent heat heating type heat exchanger 3 in the hot water supply circuit 6 is configured to heat the water from the water supply path 2 by the latent heat of the combustion gas due to the combustion of the burner 13, and as the heating heating unit 7 in the heating circuit 9, Burner heating type heat exchanger 15 that simultaneously heats the heat medium by combustion of the same single burner 13 as the hot water burner latent heat heating type heat exchanger 3, and heat pump heating type heat that heats the heat medium by the medium of the heat pump device 16. And an exchanger 17. The burner heating type heat exchanger 15 for the heat medium is composed of a burner latent heat heating type heat exchanger 15a that heats the heat medium by the latent heat of the combustion gas of the burner 13 and a heat medium by sensible heat of the combustion gas of the burner 13. It is composed of a burner latent heat heating type heat exchanger 15b to be heated, and is configured in a so-called one-can three-water format.
The burner 13 is connected to a gas supply path 18 for supplying fuel gas for general household use. The gas supply path 18 is connected to an intermittent valve 19 for intermittently supplying the fuel gas and a gas proportional for adjusting the fuel gas supply amount. A valve 20 is provided. The burner 13 is also provided with a combustion fan F for supplying combustion air. Although not shown in the drawing, an ignition igniter for performing an ignition operation on the burner 13 and an ignition have been provided near the burner 13. A frame rod or the like for detecting whether or not is provided is also provided.

給湯回路６を構成する給水路２には、給水量を検出する水量センサ２４と給水温度を検出する給水サーミスタ２５とが設けられ、その給水路２が、給湯バイパス路２６を介して給湯路５に接続され、その給湯バイパス路２６によって、給水路２の水を給湯用バーナ潜熱加熱式熱交換器３と給湯用熱交換器７１をバイパスして給湯路５に供給可能としている。
その給湯路５と給湯バイパス路２６との接続箇所には、給湯用バーナ潜熱加熱式熱交換器３に供給する水量と給湯バイパス路２６を通流させる水量との比率を調整自在なバイパス弁２７が設けられ、給湯路５には、上流側から順に、循環用バイパス路７０の熱媒にて給湯路５の湯水を加熱する給湯用熱交換器７１、その給湯用熱交換器７１の出口温度を検出する出口温サーミスタ２８、バイパス路２６から供給される水が混合した後の湯水の温度を検出する出湯サーミスタ３０が設けられている。 The water supply path 2 constituting the hot water supply circuit 6 is provided with a water amount sensor 24 for detecting the water supply amount and a water supply thermistor 25 for detecting the water supply temperature, and the water supply path 2 is connected to the hot water supply path 5 via the hot water supply bypass path 26. The hot water supply bypass path 26 allows the water in the water supply path 2 to be supplied to the hot water supply path 5 by bypassing the hot water supply burner latent heat heating type heat exchanger 3 and the hot water supply heat exchanger 71.
A bypass valve 27 having an adjustable ratio of the amount of water supplied to the hot water supply burner latent heat heating heat exchanger 3 and the amount of water flowing through the hot water supply bypass passage 26 is connected to the hot water supply passage 5 and the hot water supply bypass passage 26. In the hot water supply path 5, in order from the upstream side, the hot water supply heat exchanger 71 that heats the hot water in the hot water supply path 5 with the heat medium of the circulation bypass path 70, and the outlet temperature of the hot water supply heat exchanger 71 An outlet temperature thermistor 28 for detecting the hot water and a hot water thermistor 30 for detecting the temperature of hot water after the water supplied from the bypass 26 is mixed are provided.

暖房回路９のバーナ加熱式熱交換器１５において、そのバーナ潜熱加熱式熱交換器１５ａの入口側には、暖房端末８からの熱媒を戻す熱媒戻り路３１が接続され、その暖房戻り路３１は、高温暖房端末８ａに接続の高温熱媒戻り路３１ａと低温暖房端末８ｂに接続の低温熱媒戻り路３１ｂとを備えている。そして、その熱媒戻り路３１には、熱媒を貯留する膨張タンク３３と、熱媒を循環させる暖房用熱媒循環ポンプ３４が設けられ、バーナ潜熱加熱式熱交換器１５ａの出口側には、加熱後の熱媒をバーナ顕熱加熱式熱交換器１５ｂに供給する第１熱媒路３２が接続されている。
バーナ顕熱加熱式熱交換器１５ｂの出口側には、第２熱媒路３５が接続され、その第２熱媒路３５には、加熱後の熱媒の温度を検出する熱媒サーミスタ３７が設けられ、その熱媒サーミスタ３７の下流側には、熱媒を高温暖房端末８ａに供給する高温往き路３８と、熱媒を給湯用熱交換器７１に供給する循環用バイパス路７０とが分岐接続されている。 In the burner heating type heat exchanger 15 of the heating circuit 9, a heating medium return path 31 for returning the heating medium from the heating terminal 8 is connected to the inlet side of the burner latent heat heating type heat exchanger 15a. 31 includes a high temperature heating medium return path 31a connected to the high temperature heating terminal 8a and a low temperature heating medium return path 31b connected to the low temperature heating terminal 8b. The heating medium return path 31 is provided with an expansion tank 33 for storing the heating medium and a heating medium circulating pump 34 for circulating the heating medium, and on the outlet side of the burner latent heat heating type heat exchanger 15a. A first heat medium path 32 is connected to supply the heated heat medium to the burner sensible heat heat exchanger 15b.
A second heat medium path 35 is connected to the outlet side of the burner sensible heat type heat exchanger 15b, and a heat medium thermistor 37 that detects the temperature of the heated heat medium is connected to the second heat medium path 35. A high-temperature forward passage 38 for supplying the heat medium to the high-temperature heating terminal 8 a and a circulation bypass passage 70 for supplying the heat medium to the hot water supply heat exchanger 71 are branched downstream of the heat-medium thermistor 37. It is connected.

すなわち、バーナ顕熱加熱式熱交換器１５ｂからの熱媒の一部が高温往き路３８を通して高温暖房端末８ａに供給され、残りの一部が循環用バイパス路７０を通して給湯用熱交換器７１から膨張タンク３３に供給されるように構成されている。そして、第１熱媒路３２には、熱媒を低温暖房端末８ｂに供給する熱媒往き路としての低温往き路３６が分岐接続されている。
循環用バイパス路７０の給湯用熱交換器７１より上流側には、熱媒バイパス路４３が接続されて、その接続箇所に熱媒分配弁７２が設けられ、熱媒バイパス路４３には、ふろ熱交換器１１が設けられ、バーナ顕熱加熱式熱交換器１５ｂからの熱媒が、ふろ熱交換器１１を通して膨張タンク３３に供給されるように構成されている。 That is, a part of the heat medium from the burner sensible heat type heat exchanger 15 b is supplied to the high-temperature heating terminal 8 a through the high-temperature outgoing path 38, and the remaining part is supplied from the hot water supply heat exchanger 71 through the circulation bypass path 70. It is configured to be supplied to the expansion tank 33. The first heat medium path 32 is branched and connected to a low temperature forward path 36 as a heat medium forward path for supplying the heat medium to the low temperature heating terminal 8b.
A heating medium bypass path 43 is connected to the circulation bypass path 70 upstream of the hot water supply heat exchanger 71, and a heating medium distribution valve 72 is provided at the connection location. A heat exchanger 11 is provided, and the heat medium from the burner sensible heat type heat exchanger 15 b is configured to be supplied to the expansion tank 33 through the bath heat exchanger 11.

ふろ熱交換器１１には、加熱後の湯水を浴槽１０に供給するふろ往き路４６と浴槽１０から湯水を吸引するふろ戻り路４７とが接続され、ふろ往き路４６とふろ戻り路４７とからふろ循環路４５が構成されている。
ふろ戻り路４７には、圧力を検出することにより浴槽１０内の水位を検出する水位センサ４８と、浴槽１０から湯水を吸引して循環させるふろ循環ポンプ４９と、水流スイッチ５０と、浴槽内の湯水の温度を検出するふろサーミスタ５１とが設けられている。そして、給湯路５から分岐してふろ戻り路４７に接続された湯張り路５２には、湯張り弁５３、空気層形成用ホッパ５４、及び、湯張り逆止弁５５が設けられ、空気層形成用ホッパ５４には、図示は省略するが、湯水を排水する排水路とその排水路を開閉する排水弁とが設けられている。 The bath heat exchanger 11 is connected to a bath return path 46 for supplying hot water after heating to the bathtub 10 and a bath return path 47 for sucking hot water from the bathtub 10, and from the bath forward path 46 and the bath return path 47. A bath circulation path 45 is configured.
The bath return path 47 includes a water level sensor 48 that detects the water level in the bathtub 10 by detecting pressure, a bath circulation pump 49 that sucks and circulates hot water from the bath 10, a water flow switch 50, A bath thermistor 51 for detecting the temperature of the hot water is provided. A hot water filling passage 52 branched from the hot water supply passage 5 and connected to the bath return passage 47 is provided with a hot water filling valve 53, an air layer forming hopper 54, and a hot water filling check valve 55. Although not shown, the forming hopper 54 is provided with a drainage channel for draining hot water and a drainage valve for opening and closing the drainage channel.

暖房端末８から熱媒を戻す熱媒戻り路３１において、高温熱媒戻り路３１ａと低温熱媒戻り路３１ｂが合流する手前の低温熱媒戻り路３１ｂには、ヒートポンプ用熱媒路６１が分岐接続され、そのヒートポンプ用熱媒路６１が低温往き路３６に接続されて、その接続箇所にヒートポンプ用熱媒切換弁７５が設けられている。そして、ヒートポンプ用熱媒路６１には、ヒートポンプ装置１６の媒体と熱媒とを熱交換させて媒体にて熱媒を加熱するヒートポンプ加熱式熱交換器１７が配置され、ヒートポンプ加熱式熱交換器１７の出口側には、熱媒の出口温度を検出する熱媒サーミスタ６３とヒートポンプ用熱媒循環ポンプ７６が設けられている。
すなわち、低温熱媒戻り路３１ｂ、ヒートポンプ用熱媒路６１、及び、低温往き路３６等によりヒートポンプ用熱媒循環路９ｂが形成され、そのヒートポンプ用熱媒循環路９ｂによって、低温暖房端末８ｂからの熱媒をバーナ加熱式熱交換器１５、膨張タンク３３、及び、暖房用熱媒循環ポンプ３４をバイパスさせて、低温暖房端末８ｂからの熱媒の全量をそのまま、場合によっては、低温暖房端末８ｂからの熱媒の一部をそのままヒートポンプ加熱式熱交換器１７に直接供給可能とし、そのヒートポンプ用熱媒循環路９ｂにヒートポンプ用熱媒循環ポンプ７６が設けられている。なお、低温暖房端末８ｂからの熱媒の一部がヒートポンプ加熱式熱交換器１７に直接供給される場合、熱媒の残りは、熱媒戻り路３１を通流して膨張タンク３３及び熱媒循環ポンプ３４に供給される。 In the heat medium return path 31 for returning the heat medium from the heating terminal 8, the heat pump heat medium path 61 is branched to the low temperature heat medium return path 31b before the high temperature heat medium return path 31a and the low temperature heat medium return path 31b merge. The heat pump heat medium path 61 is connected to the low-temperature forward path 36, and a heat pump heat medium switching valve 75 is provided at the connection location. A heat pump heating type heat exchanger 17 that heat-exchanges the medium and the heat medium of the heat pump device 16 and heats the heat medium with the medium is disposed in the heat medium 61 for the heat pump, and the heat pump heating type heat exchanger A heat medium thermistor 63 for detecting the outlet temperature of the heat medium and a heat medium circulation pump 76 for heat pump are provided on the outlet side of 17.
In other words, the heat pump heating medium circulation path 9b is formed by the low temperature heating medium return path 31b, the heat pump heating medium path 61, the low temperature outgoing path 36, and the like, and the heat pump heating medium circulation path 9b allows the low temperature heating terminal 8b to By bypassing the burner heating type heat exchanger 15, the expansion tank 33 and the heating medium circulating pump 34 for heating, the total amount of the heating medium from the low temperature heating terminal 8b is left as it is. A part of the heat medium from 8b can be directly supplied to the heat pump heating type heat exchanger 17 as it is, and a heat medium circulation pump 76 for heat pump is provided in the heat medium circulation path 9b for the heat pump. When a part of the heat medium from the low temperature heating terminal 8b is directly supplied to the heat pump heating type heat exchanger 17, the remainder of the heat medium flows through the heat medium return path 31 to circulate the expansion tank 33 and the heat medium. It is supplied to the pump 34.

それに対し、高温熱媒戻り路３１ａ、低温熱媒戻り路３１ｂ、熱媒戻り路３１、第１熱媒路３２、第２熱媒路３５、循環用バイパス路７０、低温往き路３６、及び、高温往き路３８等によりバーナ用熱媒循環路９ａが形成されて、暖房端末８からの熱媒をバーナ加熱式熱交換器１５に供給して暖房端末８へ循環可能とし、そのバーナ用熱媒循環路９ａが、膨張タンク３３及び暖房用熱媒循環ポンプ３４を備えている。
そして、ヒートポンプ加熱式熱交換器１７からの熱媒をバーナ用熱媒循環路９ａに供給するか又はヒートポンプ用熱媒循環路９ｂに供給するかを切り換える切換弁として熱媒切換弁７５及び後述する蓄熱用熱媒切換弁８０が設けられている。 On the other hand, the high temperature heating medium return path 31a, the low temperature heating medium return path 31b, the heating medium return path 31, the first heating medium path 32, the second heating medium path 35, the circulation bypass path 70, the low temperature outgoing path 36, and The heating medium circulation path 9a for the burner is formed by the high-temperature outgoing path 38 and the like, and the heating medium from the heating terminal 8 is supplied to the burner heating type heat exchanger 15 so that it can be circulated to the heating terminal 8. The circulation path 9 a includes an expansion tank 33 and a heating medium circulation pump 34 for heating.
Then, the heat medium switching valve 75 and a heat medium switching valve 75 which will be described later are used as a switching valve for switching whether the heat medium from the heat pump heating heat exchanger 17 is supplied to the burner heat medium circulation path 9a or the heat pump heat medium circulation path 9b. A heat storage heat medium switching valve 80 is provided.

ヒートポンプ装置１６は、圧縮機２１、凝縮器としてのヒートポンプ加熱式熱交換器１７、膨張弁２２、蒸発器２３の順に媒体を循環させる媒体回路Ｒを備えた圧縮式ヒートポンプ装置にて構成され、圧縮機２１を作動させることで、ヒートポンプ加熱式熱交換器１７に圧縮機２１からの高温高圧の媒体が供給され、その媒体にてヒートポンプ用熱媒路６１を通流する熱媒を加熱するように構成されている。
そして、ヒートポンプ用熱媒路６１におけるヒートポンプ用熱媒循環ポンプ７６の下流側と熱媒戻り路３１とが、蓄熱用戻り路７８により接続され、低温往き路３６におけるヒートポンプ用熱媒切換弁７５の上流側とヒートポンプ用熱媒路６１におけるヒートポンプ加熱式熱交換器１７の上流側とが、蓄熱用往き路７９により接続されて、その蓄熱用往き路７９と低温往き路３６との接続箇所に蓄熱用熱媒切換弁８０が設けられ、ヒートポンプ加熱式熱交換器１７により加熱された熱媒をバーナ用熱媒循環路９ａの一部を介して膨張タンク３３及び暖房用熱媒循環ポンプ３４に供給する蓄熱運転が可能なように構成されている。 The heat pump device 16 includes a compressor 21, a heat pump heating type heat exchanger 17 as a condenser, an expansion valve 22, and an evaporator 23 in this order, and includes a compression type heat pump device including a medium circuit R that circulates the medium. By operating the machine 21, the high-temperature and high-pressure medium from the compressor 21 is supplied to the heat pump heating type heat exchanger 17, and the heat medium flowing through the heat medium 61 for the heat pump is heated by the medium. It is configured.
The downstream side of the heat pump heat medium circulating pump 76 in the heat pump heat medium path 61 and the heat medium return path 31 are connected by a heat storage return path 78, and the heat pump heat medium switching valve 75 in the low temperature forward path 36 is connected. The upstream side and the upstream side of the heat pump heating heat exchanger 17 in the heat medium for heat pump 61 are connected by a heat storage forward path 79, and heat is stored at a connection point between the heat storage forward path 79 and the low temperature forward path 36. The heating medium switching valve 80 is provided, and the heating medium heated by the heat pump heating heat exchanger 17 is supplied to the expansion tank 33 and the heating heating medium circulation pump 34 through a part of the heating medium circulation path 9a for the burner. It is comprised so that the heat storage operation to perform is possible.

給湯装置１とヒートポンプ装置１６を有する熱媒供給装置は、その全ての運転がコンピュータを備えた運転制御手段５６により制御されるように構成され、その運転制御手段５６は、熱媒供給装置の運転を指令する人為操作式の熱媒供給装置用リモコン（図示は省略する）との間で各種の情報を通信可能に構成されている。
熱媒供給装置用リモコンは、例えば、台所や浴室等の夫々に設けられており、給湯設定温度や湯張り設定温度等を設定可能であるとともに、各種スイッチのＯＮ操作により各種の運転を要求指令できるように構成されている。
また、運転制御手段５６は、暖房端末８の運転を指令する人為操作式の高温暖房端末用リモコン及び低温暖房端末用リモコン（図示は省略する）との間で各種の情報を通信可能に構成され、高温暖房端末用リモコンは、高温暖房端末８ａに対して設けられ、低温暖房端末用リモコンは、低温暖房端末８ｂに対して設けられている。 The heat medium supply device having the hot water supply device 1 and the heat pump device 16 is configured such that all operations are controlled by an operation control means 56 having a computer, and the operation control means 56 is an operation of the heat medium supply device. Various types of information can be communicated with an artificially operated remote controller for a heating medium supply device (not shown).
The remote control for the heating medium supply device is provided in each of the kitchen and bathroom, for example, and can set the hot water supply set temperature, hot water set temperature, etc., and requests various operations by turning on various switches. It is configured to be able to.
The operation control means 56 is configured to be able to communicate various types of information between an artificially operated high-temperature heating terminal remote controller and a low-temperature heating terminal remote controller (not shown) that command the operation of the heating terminal 8. The high-temperature heating terminal remote control is provided for the high-temperature heating terminal 8a, and the low-temperature heating terminal remote control is provided for the low-temperature heating terminal 8b.

つぎに、運転制御手段５６による熱媒供給装置の制御運転について説明する。
運転制御手段５６は、熱媒供給装置用リモコンの運転スイッチがＯＮ操作されると制御可能な状態となり、給湯栓４が開操作されると給湯栓４から湯水を給湯する給湯運転を実行する。そして、熱媒供給装置用リモコンの湯張りスイッチがＯＮ操作されてふろ湯張りが要求されると湯張り運転を実行し、追焚スイッチがＯＮ操作されてふろ追焚が要求されると追焚運転を実行する。
また、運転制御手段５６は、高温暖房端末用リモコンの暖房運転スイッチがＯＮ操作されて高温暖房端末８ａから運転が要求されると高温暖房運転を実行し、低温暖房端末用リモコンの暖房運転スイッチがＯＮ操作されて低温暖房端末８ｂから運転が要求されると低温暖房運転を実行し、更に、別途蓄熱運転も実行する。 Next, the control operation of the heat medium supply device by the operation control means 56 will be described.
The operation control means 56 is in a controllable state when the operation switch of the remote controller for the heat medium supply device is turned on, and executes a hot water supply operation of supplying hot water from the hot water tap 4 when the hot water tap 4 is opened. Then, when the hot water filling switch of the remote controller for the heat medium supply device is turned on to request bath filling, the hot water filling operation is executed, and when the hot water switch is turned on and bath bathing is requested, the memorial service is performed. Run the operation.
Further, the operation control means 56 executes the high temperature heating operation when the heating operation switch of the remote controller for high temperature heating terminal is turned ON and the operation is requested from the high temperature heating terminal 8a, and the heating operation switch of the remote controller for low temperature heating terminal is operated. When the operation is requested from the low temperature heating terminal 8b after being turned ON, the low temperature heating operation is executed, and further, the heat storage operation is also executed separately.

〔給湯運転〕
運転制御手段５６は、給湯栓４を開いて水量センサ２４による検出水量が所定量以上になり給湯が要求されていると判別すると、バーナ１３を燃焼させて給湯用バーナ潜熱加熱式熱交換器３にて水を加熱させ、更に、給湯用バーナ潜熱加熱式熱交換器３にて加熱された湯水を給湯用熱交換器７１にて加熱させる給湯加熱作動を行う。つまり、暖房用熱媒循環ポンプ３４を作動させるとともに、熱媒分配弁７２等を切り換えることでバーナ加熱状態に切り換えて、燃焼用ファンＦの駆動を開始させた後、断続弁１９を開弁し、ガス比例弁２０の開度を調整してイグナイタによりバーナ１３に点火する。そして、熱媒供給装置用リモコンでの給湯設定温度、給水サーミスタ２５による検出水温、水量センサ２４による検出水量等に基づいて、給湯温度を給湯設定温度とするためのバーナ１３の目標燃焼量を求め、その求めた目標燃焼量となるようにガス比例弁２０の開度及び燃焼用ファンＦの回転速度を制御する。
そして、水量センサ２４にて通水が検出されなくなると、ガス比例弁２０及び断続弁１９を閉弁させて燃料供給を停止してバーナ１３の燃焼を停止し、燃焼用ファンＦと暖房用熱媒循環ポンプ３４も停止させて給湯運転を終了する。 [Hot water operation]
When the operation control means 56 opens the hot-water tap 4 and determines that the amount of water detected by the water amount sensor 24 is equal to or greater than a predetermined amount and hot water is required, the burner 13 is burned and the hot water supply burner latent heat heating type heat exchanger 3 is heated. Then, the hot water heating operation is performed in which the hot water heated by the hot water supply burner latent heat heating type heat exchanger 3 is heated by the hot water supply heat exchanger 71. That is, the heating medium circulating pump 34 is operated and the heating medium distribution valve 72 is switched to the burner heating state to start the combustion fan F, and then the intermittent valve 19 is opened. Then, the opening of the gas proportional valve 20 is adjusted and the burner 13 is ignited by the igniter. The target combustion amount of the burner 13 for setting the hot water supply temperature to the hot water supply set temperature is obtained based on the hot water supply set temperature with the remote controller for the heat medium supply device, the detected water temperature with the water supply thermistor 25, the detected water amount with the water amount sensor 24, and the like. Then, the opening degree of the gas proportional valve 20 and the rotational speed of the combustion fan F are controlled so that the calculated target combustion amount is obtained.
When water flow is no longer detected by the water amount sensor 24, the gas proportional valve 20 and the intermittent valve 19 are closed to stop the fuel supply and stop the combustion of the burner 13, and the combustion fan F and the heating heat The medium circulation pump 34 is also stopped to end the hot water supply operation.

〔湯張り運転〕
運転制御手段５６は、湯張りスイッチがＯＮ操作されてふろ湯張りが要求されると、湯張り弁５３を開弁して通水を開始させ、出湯サーミスタ３０の検出温度が湯張り用の目標温度になるように、バーナ１３を燃焼させて給湯用バーナ潜熱加熱式熱交換器３と給湯用熱交換器７１にて湯水を加熱させる給湯加熱作動を行う。
そして、水位センサ４８にて検出される浴槽１０の水位が設定水位に達すると、湯張り弁５３を閉じて、バーナ１３の燃焼を停止し、燃焼用ファンＦ等も停止させて給湯加熱作動を停止して湯張り運転を終了する。 [Hot water operation]
When the hot water filling switch is turned on and the hot water filling is requested, the operation control means 56 opens the hot water filling valve 53 to start water flow, and the detected temperature of the hot water thermistor 30 is the target for hot water filling. A hot water supply heating operation is performed in which the burner 13 is burned so as to reach a temperature, and hot water is heated by the hot water supply latent heat heating type heat exchanger 3 and the hot water supply heat exchanger 71.
When the water level of the bathtub 10 detected by the water level sensor 48 reaches the set water level, the hot water filling valve 53 is closed, the combustion of the burner 13 is stopped, the combustion fan F and the like are stopped, and the hot water supply heating operation is performed. Stop and end hot water operation.

以下、追焚運転、高温暖房運転、及び、低温暖房運転について説明するが、本発明に係る熱媒供給装置では、暖房回路９において、バーナ１３の燃焼により熱媒を加熱するバーナ加熱式熱交換器１５と、ヒートポンプ装置１６の媒体により熱媒を加熱するヒートポンプ加熱式熱交換器１７とが設けられている。
そして、熱媒分配弁７２やヒートポンプ用熱媒切換弁７５等を切り換えることで、バーナ加熱式熱交換器１５にて熱媒を加熱するバーナ加熱状態（図１中太線参照）とヒートポンプ加熱式熱交換器１７にて熱媒を加熱するヒートポンプ加熱状態（図２中太線参照）とに切換自在に構成され、追焚運転と高温暖房運転では、バーナ加熱状態で運転し、低温暖房運転では、バーナ加熱状態及びヒートポンプ加熱状態の何れかに切り換えて運転を行うように構成され、更に、蓄熱運転（図３中太線参照）も可能に構成されている。 Hereinafter, although the memorial operation, the high temperature heating operation, and the low temperature heating operation will be described, in the heating medium supply device according to the present invention, in the heating circuit 9, the burner heating type heat exchange that heats the heating medium by the combustion of the burner 13 is described. And a heat pump heating type heat exchanger 17 that heats the heat medium with the medium of the heat pump device 16.
Then, by switching the heat medium distributing valve 72, the heat pump heat medium switching valve 75, etc., the burner heating state in which the heat medium is heated by the burner heating type heat exchanger 15 (see the thick line in FIG. 1) and the heat pump heating type heat. The heat exchanger is heated by the exchanger 17 so that it can be switched to a heat pump heating state (see thick line in FIG. 2). In the chasing operation and the high temperature heating operation, the burner is heated. In the low temperature heating operation, the burner is operated. It is configured to operate by switching to either a heating state or a heat pump heating state, and further, a heat storage operation (see thick line in FIG. 3) is also possible.

〔追焚運転〕
この追焚運転では、運転制御手段５６が、熱媒分配弁７２等を切り換えることでバーナ加熱状態に切り換える。
運転制御手段５６は、追焚スイッチがＯＮ操作されてふろ追焚が要求されると、ふろ循環ポンプ４９を作動させて、浴槽１０内の湯水をふろ戻り路４７及びふろ往き路４６を通して循環させる。そのときに水流スイッチ５０によりそのことが検出されると、暖房用熱媒循環ポンプ３４を作動させるとともに、熱媒分配弁７２等を切り換えることでバーナ加熱状態に切り換えて、バーナ１３を燃焼させてバーナ加熱式熱交換器１５にて熱媒を加熱させる暖房バーナ加熱作動を行う。
その暖房バーナ加熱作動として、燃焼用ファンＦの駆動を開始させた後、断続弁１９を開弁し、ガス比例弁２０の開度を調整してイグナイタによりバーナ１３に点火し、熱媒サーミスタ３７の検出温度と目標温度（例えば８０℃）との偏差等に基づいて、熱媒サーミスタ３７の検出温度を目標温度とするためのバーナ１３の目標燃焼量を求め、求めた目標燃焼量となるようにガス比例弁２０の開度及び燃焼用ファンＦの回転速度を制御する。 [Memorial operation]
In the memory operation, the operation control means 56 switches to the burner heating state by switching the heat medium distribution valve 72 and the like.
The operation control means 56 operates the bath circulation pump 49 to circulate hot water in the bathtub 10 through the bath return path 47 and the bath going-out path 46 when the bath switch is turned on to request bath bathing. . If this is detected by the water flow switch 50 at that time, the heating medium circulating pump 34 for heating is operated, and the heating medium distribution valve 72 and the like are switched to switch to the burner heating state to burn the burner 13. A heating burner heating operation for heating the heat medium in the burner heating type heat exchanger 15 is performed.
As the heating burner heating operation, after driving of the combustion fan F is started, the intermittent valve 19 is opened, the opening of the gas proportional valve 20 is adjusted, the burner 13 is ignited by the igniter, and the heat medium thermistor 37 Based on the deviation between the detected temperature and the target temperature (for example, 80 ° C.), the target combustion amount of the burner 13 for setting the detected temperature of the heat-medium thermistor 37 as the target temperature is obtained so that the calculated target combustion amount is obtained. In addition, the opening degree of the gas proportional valve 20 and the rotational speed of the combustion fan F are controlled.

運転制御手段５６が、熱媒分配弁７２を熱媒バイパス路４３側へ切り換えることで、バーナ顕熱加熱式熱交換器１５ｂにて加熱された熱媒を熱媒バイパス路４３を通してふろ熱交換器１１に供給している。ふろ熱交換器１１を通過した熱媒は、熱媒戻り路３１を通して膨張タンク３３、暖房用熱媒循環ポンプ３４を通過したのち、バーナ潜熱加熱式熱交換器１５ａに供給されて加熱される。バーナ潜熱加熱式熱交換器１５ａにて加熱された熱媒は、第１熱媒路３２を通してバーナ顕熱加熱式熱交換器１５ｂに供給されて加熱される。
このようにして、バーナ加熱式熱交換器１５にて熱媒を加熱しながら、その加熱された熱媒をふろ熱交換器１１に循環供給している。一方、ふろ循環ポンプ４９の作動によりふろ循環路４５を通してふろ熱交換器１１に浴槽１０の湯水が供給され、ふろ熱交換器１１において熱媒により浴槽１０の湯水を加熱し、ふろ往き路４６にて浴槽１０に供給し、バーナ加熱式熱交換器１５にて加熱された熱媒により浴槽１０の湯水を加熱して追焚を行っている。そして、ふろサーミスタ５１の検出温度が追焚設定温度に達すると、ふろ循環ポンプ４９及び暖房用熱媒循環ポンプ３４を停止させるとともに、バーナ１３の燃焼を停止し、燃焼用ファンＦも停止させて暖房バーナ加熱作動を停止して、追焚運転を終了する。 The operation control means 56 switches the heat medium distribution valve 72 to the heat medium bypass path 43 side, so that the heat medium heated by the burner sensible heat heat exchanger 15b passes through the heat medium bypass path 43 and the bath heat exchanger. 11 is supplied. The heat medium that has passed through the bath heat exchanger 11 passes through the expansion tank 33 and the heating heat medium circulation pump 34 through the heat medium return path 31, and is then supplied to the burner latent heat heating type heat exchanger 15a to be heated. The heat medium heated in the burner latent heat heating type heat exchanger 15a is supplied to the burner sensible heat heating type heat exchanger 15b through the first heat medium path 32 and heated.
In this way, the heated heat medium is circulated and supplied to the bath heat exchanger 11 while the heat medium is heated by the burner heating type heat exchanger 15. On the other hand, the hot water in the bathtub 10 is supplied to the bath heat exchanger 11 through the bath circulation path 45 by the operation of the bath circulation pump 49, and the hot water in the bathtub 10 is heated by the heating medium in the bath heat exchanger 11. The hot water in the bathtub 10 is heated by the heating medium supplied to the bathtub 10 and heated by the burner heating type heat exchanger 15 to carry out the memory. Then, when the detected temperature of the bath thermistor 51 reaches the memory setting temperature, the bath circulation pump 49 and the heating medium circulation pump 34 are stopped, the combustion of the burner 13 is stopped, and the combustion fan F is also stopped. Stop the heating operation of the heating burner and end the memorial operation.

〔高温暖房運転〕
この高温暖房運転でも、運転制御手段５６が、熱媒分配弁７２等を切り換えることでバーナ加熱状態に切り換える。
運転制御手段５６は、高温暖房端末８ａから運転が要求されると、暖房用熱媒循環ポンプ３４を作動させるとともに、上述の追焚運転と同様に、熱媒分配弁７２等を切り換えることでバーナ加熱状態に切り換えて、バーナ１３を燃焼させてバーナ加熱式熱交換器１５にて熱媒を加熱させる暖房バーナ加熱作動を行う。ここで、熱媒サーミスタ３７の検出温度と目標温度（例えば８０℃）との偏差等に基づいて、熱媒サーミスタ３７の検出温度を目標温度とするためのバーナ１３の目標燃焼量を求め、その求めた目標燃焼量となるようにガス比例弁２０の開度及び燃焼用ファンＦの回転速度を制御する。 [High temperature heating operation]
Even in this high-temperature heating operation, the operation control means 56 switches to the burner heating state by switching the heat medium distribution valve 72 and the like.
When the operation is requested from the high temperature heating terminal 8a, the operation control means 56 operates the heating medium circulating pump 34 for heating and switches the heat medium distributing valve 72 and the like in the same manner as the above-described reheating operation. A heating burner heating operation is performed in which the burner 13 is burned and the heat medium is heated by the burner heating heat exchanger 15 by switching to the heating state. Here, based on the deviation between the detected temperature of the heat medium thermistor 37 and the target temperature (for example, 80 ° C.), the target combustion amount of the burner 13 for setting the detected temperature of the heat medium thermistor 37 as the target temperature is obtained. The opening degree of the gas proportional valve 20 and the rotational speed of the combustion fan F are controlled so that the obtained target combustion amount is obtained.

そして、高温往き路３８に備えられた熱媒断続弁（図示省略）を開弁させ、熱媒分配弁７２等がバーナ加熱状態に切り換えられているので、高温暖房端末８ａからの熱媒は、高温熱媒戻り路３１ａと熱媒戻り路３１を通して膨張タンク３３、暖房用熱媒循環ポンプ３４を通過したのち、バーナ潜熱加熱式熱交換器１５ａに供給されて加熱される。バーナ潜熱加熱式熱交換器１５ａにて加熱された熱媒は、第１熱媒路３２を通してバーナ顕熱加熱式熱交換器１５ｂに供給されて加熱され、加熱後の熱媒の一部が、第２熱媒路３５及び高温往き路３８を通して高温暖房端末８ａに供給され、熱媒の残りが、循環用バイパス路７０及び給湯用熱交換器７１を通して膨張タンク３３に供給される。つまり、高温暖房端末８ａからの熱媒は、バーナ用熱媒循環路９ａを通して、バーナ加熱式熱交換器１５により加熱され、その後、高温暖房端末８ａに供給される。
そして、高温暖房端末８ａからの運転要求が終了すると、暖房用熱媒循環ポンプ３４を停止させるとともに、バーナ１３の燃焼を停止し、燃焼用ファンＦも停止させて暖房バーナ加熱作動を停止して、高温暖房運転を終了する。 And since the heat-medium interruption valve (illustration omitted) with which the high-temperature going way 38 was equipped is opened and the heat-medium distribution valve 72 grade | etc., Is switched to the burner heating state, the heat medium from the high-temperature heating terminal 8a is After passing through the expansion tank 33 and the heating medium circulating pump 34 through the high-temperature heat medium return path 31a and the heat medium return path 31, it is supplied to the burner latent heat heating heat exchanger 15a and heated. The heat medium heated by the burner latent heat heating type heat exchanger 15a is supplied to the burner sensible heat heat type heat exchanger 15b through the first heat medium path 32 and heated, and a part of the heated heat medium is The high temperature heating terminal 8a is supplied to the high temperature heating terminal 8a through the second heat medium path 35 and the high temperature outgoing path 38, and the remaining heat medium is supplied to the expansion tank 33 through the circulation bypass path 70 and the hot water supply heat exchanger 71. That is, the heat medium from the high temperature heating terminal 8a is heated by the burner heating heat exchanger 15 through the heat medium circulation path 9a for the burner, and then supplied to the high temperature heating terminal 8a.
When the operation request from the high-temperature heating terminal 8a is completed, the heating medium circulating pump 34 is stopped, the combustion of the burner 13 is stopped, the combustion fan F is also stopped, and the heating burner heating operation is stopped. The high temperature heating operation is terminated.

〔低温暖房運転〕
この低温暖房運転では、図１及び図２に示すように、運転制御手段５６が、状況に応じて、バーナ加熱状態とヒートポンプ加熱状態とのうちの何れかに切り換える。すなわち、低温暖房端末８ｂにて要求される温度に応じて複数の運転モードが実行可能に構成され、どの運転モードを実行するかは、運転制御手段５６が低温暖房端末８ｂにて要求されている熱媒の温度等に応じて選択するように構成されている。
その複数の運転モードとして、例えば、図４に示すように、低温暖房端末８ｂに供給する熱媒の温度をホットダッシュ用設定温度（例えば７５℃）とするホットダッシュ運転モード、低温暖房端末８ｂに供給する熱媒の温度を高温用設定温度（例えば６０℃）とする高温運転モード、及び、低温暖房端末８ｂに供給する熱媒の温度を低温用設定温度（例えば４０℃）とする低温運転モードを実行するように構成されている。 [Low temperature heating operation]
In this low temperature heating operation, as shown in FIGS. 1 and 2, the operation control means 56 switches between the burner heating state and the heat pump heating state depending on the situation. That is, a plurality of operation modes can be executed according to the temperature required in the low temperature heating terminal 8b, and the operation control means 56 is required in the low temperature heating terminal 8b as to which operation mode is executed. It is comprised so that it may select according to the temperature etc. of a heat medium.
As the plurality of operation modes, for example, as shown in FIG. 4, in the hot dash operation mode in which the temperature of the heat medium supplied to the low temperature heating terminal 8b is set to the set temperature for hot dash (for example, 75 ° C.), the low temperature heating terminal 8b A high temperature operation mode in which the temperature of the heating medium to be supplied is set to a high temperature setting temperature (for example, 60 ° C.) and a low temperature operation mode in which the temperature of the heating medium to be supplied to the low temperature heating terminal 8b is set to a low temperature setting temperature (for example, 40 ° C.). Is configured to run.

そこで、運転制御手段５６は、運転モード毎に、バーナ加熱状態に切り換えた場合の１次エネルギー消費量とヒートポンプ加熱状態に切り換えた場合の１次エネルギー消費量とを求めておき、その求めた１次エネルギー消費量が小さい方を選択して切り換えるように設定されている。
例えば、図４に示すように、低温暖房運転として、ホットダッシュ運転モードをホットダッシュ用設定時間（例えば３０分）行った後、高温運転モードを高温用設定時間（例えば１．５時間）行い、その後、低温運転モードを低温用設定時間（例えば５．０時間）行う場合について、以下、詳細に説明する。
運転モード毎の暖房負荷は、低温暖房端末８ｂに供給する熱媒の温度及び運転時間等から求めることができ、例えば、図５に示すように、ホットダッシュ運転モードでの暖房負荷が２．９ｋＷｈ、高温運転モードでの暖房負荷が３．６ｋＷｈ、低温運転モードでの暖房負荷が６．５ｋＷｈであり、このようにして、運転モード毎の暖房負荷を求めておく。 Therefore, the operation control means 56 obtains the primary energy consumption when switching to the burner heating state and the primary energy consumption when switching to the heat pump heating state for each operation mode, and the obtained 1 It is set to select and switch the one with the smaller next energy consumption.
For example, as shown in FIG. 4, as a low temperature heating operation, after performing a hot dash operation mode for a set time for hot dash (for example, 30 minutes), a high temperature operation mode is performed for a set time for high temperature (for example, 1.5 hours), Thereafter, the case where the low temperature operation mode is performed for a low temperature setting time (for example, 5.0 hours) will be described in detail below.
The heating load for each operation mode can be obtained from the temperature of the heat medium supplied to the low temperature heating terminal 8b, the operation time, etc. For example, as shown in FIG. 5, the heating load in the hot dash operation mode is 2.9 kWh. The heating load in the high temperature operation mode is 3.6 kWh, and the heating load in the low temperature operation mode is 6.5 kWh. In this way, the heating load for each operation mode is obtained.

そして、バーナ加熱状態に切り換えた場合の１次エネルギー消費量については、運転モード毎の暖房負荷（ｋＷｈ）をＣＯＰ（成績係数）にて除算することにより、その暖房負荷を賄うためのガス需要（ｋＷｈ）を求める。ここで、ＣＯＰは、バーナ加熱状態に切り換えてバーナ加熱式熱交換器１５にて熱媒を加熱したときのＣＯＰを用い、その求めたガス需要（ｋＷｈ）に３．６を乗算することにより１次エネルギー消費量（ＭＪ）に換算して、バーナ加熱状態に切り換えた場合に運転モード毎に１次エネルギー消費量（ＭＪ）を求めることができる。
また、ヒートポンプ加熱状態に切り換える場合の１次エネルギー消費量については、運転モード毎の暖房負荷をＣＯＰにて除算することにより、その暖房負荷を賄うための電気需要（ｋＷｈ）を求める。ここで、ＣＯＰは、ヒートポンプ加熱状態に切り換えたヒートポンプ加熱式熱交換器１７にて熱媒を加熱したときのＣＯＰを用い、そして、その求めた電気需要（ｋＷｈ）を０．３６９で除算するとともに、３．６を乗算することにより１次エネルギー消費量（ＭＪ）に換算して、ヒートポンプ加熱状態に切り換えた場合に運転モード毎に１次エネルギー消費量（ＭＪ）を求めることができる。 And about the primary energy consumption at the time of switching to a burner heating state, by dividing the heating load (kWh) for every operation mode by COP (coefficient of performance), the gas demand for covering the heating load ( kWh). Here, COP is 1 by multiplying the obtained gas demand (kWh) by 3.6 using COP when the heating medium is heated by the burner heating type heat exchanger 15 by switching to the burner heating state. In terms of the secondary energy consumption (MJ), the primary energy consumption (MJ) can be obtained for each operation mode when switching to the burner heating state.
Moreover, about the primary energy consumption in the case of switching to a heat pump heating state, the electric demand (kWh) for covering the heating load is calculated | required by dividing the heating load for every operation mode by COP. Here, as the COP, the COP when the heat medium is heated by the heat pump heating type heat exchanger 17 switched to the heat pump heating state is used, and the obtained electric demand (kWh) is divided by 0.369. By multiplying 3.6, the primary energy consumption (MJ) is converted into the primary energy consumption (MJ), and the primary energy consumption (MJ) can be obtained for each operation mode when switching to the heat pump heating state.

運転モード毎にバーナ加熱状態に切り換えた場合の１次エネルギー消費量（ＭＪ）とヒートポンプ加熱状態に切り換えた場合の１次エネルギー消費量（ＭＪ）を求めることができるので、運転モード毎に１次エネルギー量が小さい方を選択して設定しておく。
ホットダッシュ運転モード（例えば暖房負荷が２．９ｋＷｈ）では、ヒートポンプ加熱で供給できる温水温度の上限が６０℃であり、７５℃の温水を供給できないので、バーナ加熱状態に切り換えるように設定しておく。
また、高温運転モード（例えば暖房負荷が３．６ｋＷｈ）では、バーナ加熱状態の１次エネルギー消費量（１４．４ＭＪ）がヒートポンプ加熱状態の１次エネルギー消費量（２４．４ＭＪ）よりも小さいので、バーナ加熱状態に切り換えるように設定し、低温運転モード（例えば暖房負荷が６．５ｋＷｈ）では、ヒートポンプ加熱状態の１次エネルギー消費量（１５．６ＭＪ）がバーナ加熱状態の１次エネルギー消費量（２６．３ＭＪ）よりも小さいので、ヒートポンプ加熱状態に切り換えるように設定しておく。 Since the primary energy consumption (MJ) when switching to the burner heating state for each operation mode and the primary energy consumption (MJ) when switching to the heat pump heating state can be obtained, the primary energy consumption (MJ) for each operation mode can be obtained. Select and set the one with the smaller amount of energy.
In the hot dash operation mode (for example, the heating load is 2.9 kWh), the upper limit of the hot water temperature that can be supplied by heat pump heating is 60 ° C., and 75 ° C. hot water cannot be supplied. .
Moreover, in the high temperature operation mode (for example, the heating load is 3.6 kWh), the primary energy consumption (14.4 MJ) in the burner heating state is smaller than the primary energy consumption (24.4 MJ) in the heat pump heating state. In the low temperature operation mode (for example, the heating load is 6.5 kWh), the primary energy consumption (15.6 MJ) in the heat pump heating state is the primary energy consumption (26 in the burner heating state). .3MJ), it is set to switch to the heat pump heating state.

このようにして、運転制御手段５６が、どの運転モードを実行するかによってバーナ加熱状態に切り換えるかヒートポンプ加熱状態に切り換えるかを予め設定しておくことができるので、運転モードを選択するだけで、バーナ加熱状態とヒートポンプ加熱状態との切換を行うことができる。したがって、運転制御手段５６は、低温暖房端末８ｂから運転が要求されると、暖房用熱媒循環ポンプ３４又はヒートポンプ用熱媒循環ポンプ７６を作動させるとともに、運転モードを選択することによりバーナ加熱状態又はヒートポンプ加熱状態に切り換える。
例えば、ホットダッシュ運転モード及び高温運転モードを行うときにはバーナ加熱状態に切り換え、低温運転モードを行うときにはヒートポンプ加熱状態に切り換える。この構成を採用することにより、熱媒を加熱するのに要する１次エネルギー消費量を小さく抑えて熱媒を低温暖房端末８ｂに供給することが可能となり、省エネ性に優れた熱媒供給装置を実現することができる。 In this way, the operation control means 56 can set in advance whether to switch to the burner heating state or to the heat pump heating state depending on which operation mode is executed, so only by selecting the operation mode, Switching between the burner heating state and the heat pump heating state can be performed. Therefore, when the operation is requested from the low temperature heating terminal 8b, the operation control means 56 operates the heating heat medium circulation pump 34 or the heat pump heat medium circulation pump 76, and selects the operation mode, thereby heating the burner. Or switch to heat pump heating state.
For example, when the hot dash operation mode and the high temperature operation mode are performed, the mode is switched to the burner heating state, and when the low temperature operation mode is performed, the mode is switched to the heat pump heating state. By adopting this configuration, it becomes possible to supply the heat medium to the low-temperature heating terminal 8b while suppressing the primary energy consumption required to heat the heat medium, and to provide a heat medium supply device with excellent energy saving performance. Can be realized.

バーナ加熱状態の場合には、運転制御手段５６が、熱媒分配弁７２やヒートポンプ用熱媒切換弁７５等をバーナ加熱状態に切り換え、バーナ１３を燃焼させてバーナ加熱式熱交換器１５にて熱媒を加熱させる暖房バーナ加熱作動を行う。
ここで、運転制御手段５６は、バーナ潜熱加熱式熱交換器１５ａの出口側である第１熱媒路３２に設けられた熱媒サーミスタ（図示省略）の検出温度と目標温度（低温暖房端末８ｂにて要求される熱媒の温度に応じて設定される）との偏差等に基づいて、その熱媒サーミスタの検出温度を目標温度とするためのバーナ１３の目標燃焼量を求め、その求めた目標燃焼量となるようにガス比例弁２０の開度及び燃焼用ファンＦの回転速度を制御する。 In the case of the burner heating state, the operation control means 56 switches the heat medium distribution valve 72, the heat pump heat medium switching valve 75, etc. to the burner heating state, burns the burner 13, and causes the burner heating type heat exchanger 15 to A heating burner heating operation for heating the heat medium is performed.
Here, the operation control means 56 detects the detected temperature and target temperature of the heat medium thermistor (not shown) provided in the first heat medium passage 32 on the outlet side of the burner latent heat heating type heat exchanger 15a and the target temperature (low temperature heating terminal 8b). The target combustion amount of the burner 13 for setting the detected temperature of the heating medium thermistor to the target temperature is obtained based on the deviation from the The opening degree of the gas proportional valve 20 and the rotational speed of the combustion fan F are controlled so as to achieve the target combustion amount.

そして、運転制御手段５６は、低温暖房端末８ｂから運転が要求されると、低温往き路３６に備えられた熱媒断続弁（図示省略）を開弁させ、図１中太線にて示すように、低温暖房端末８ｂからの熱媒は、低温熱媒戻り路３１ｂと熱媒戻り路３１を通して膨張タンク３３、暖房用熱媒循環ポンプ３４を通過したのち、バーナ潜熱加熱式熱交換器１５ａに供給されて加熱される。バーナ潜熱加熱式熱交換器１５ａにて加熱された熱媒は、第１熱媒路３２を通過し、一部が低温往き路３６を通して低温暖房端末８ｂに供給される。つまり、低温暖房端末８ｂからの熱媒は、バーナ用熱媒循環路９ａの一部を通して、バーナ加熱式熱交換器１５のバーナ潜熱加熱式熱交換器１５ａにより加熱され、その後、低温暖房端末８ｂに供給される。
そして、第１熱媒路３２を通過した熱媒のうち、残りの一部がバーナ顕熱加熱式熱交換器１５ｂに供給されて加熱され、バーナ顕熱加熱式熱交換器１５ｂにて加熱された熱媒は、循環用バイパス路７０及び給湯用熱交換器７１を通して膨張タンク３３に供給される。 When the operation is requested from the low-temperature heating terminal 8b, the operation control means 56 opens the heat medium interrupting valve (not shown) provided in the low-temperature forward path 36, as shown by the thick line in FIG. The heat medium from the low temperature heating terminal 8b passes through the expansion tank 33 and the heating medium circulation pump 34 through the low temperature heat medium return path 31b and the heat medium return path 31, and then is supplied to the burner latent heat heating type heat exchanger 15a. And heated. The heat medium heated by the burner latent heat heating type heat exchanger 15 a passes through the first heat medium path 32, and a part thereof is supplied to the low temperature heating terminal 8 b through the low temperature forward path 36. That is, the heat medium from the low temperature heating terminal 8b is heated by the burner latent heat heating type heat exchanger 15a of the burner heating type heat exchanger 15 through a part of the heat medium circulation path 9a for the burner, and then the low temperature heating terminal 8b. To be supplied.
The remaining part of the heat medium that has passed through the first heat medium path 32 is supplied to the burner sensible heat heat exchanger 15b and heated, and is heated by the burner sensible heat heat exchanger 15b. The heated heat medium is supplied to the expansion tank 33 through the circulation bypass path 70 and the hot water supply heat exchanger 71.

ヒートポンプ加熱状態の場合には、運転制御手段５６が、ヒートポンプ装置１６を運転させるとともに、ヒートポンプ用熱媒切換弁７５や蓄熱用熱媒切換弁８０等を切り換えることでヒートポンプ加熱状態に切り換える。
ここで、運転制御手段５６は、熱媒サーミスタ６３の検出温度と目標温度（低温暖房端末８ｂにて要求されている熱媒の温度に応じて設定される）との偏差等に基づいて、熱媒サーミスタ６３の検出温度を目標温度とするための圧縮機２１の目標回転速度を求め、その求めた目標回転速度となるように圧縮機２１の回転速度を制御する。
そして、図２中太線にて示すように、低温暖房端末８ｂからの熱媒は、ヒートポンプ用熱媒循環ポンプ７６の作動とヒートポンプ用熱媒切換弁７５の低温暖房端末８ｂ側への開弁により、低温熱媒戻り路３１ｂとヒートポンプ用熱媒路６１を通流してヒートポンプ加熱式熱交換器１７に供給されて加熱される。ヒートポンプ加熱式熱交換器１７で加熱された熱媒は、ヒートポンプ用熱媒循環ポンプ７６を通過し、低温往き路３６を通して低温暖房端末８ｂに供給される。つまり、低温暖房端末８ｂからの熱媒は、ヒートポンプ用熱媒循環路９ｂを通して、ヒートポンプ加熱式熱交換器１７により加熱され、その後、低温暖房端末８ｂに供給される。 In the heat pump heating state, the operation control means 56 operates the heat pump device 16 and switches to the heat pump heating state by switching the heat pump heat medium switching valve 75, the heat storage heat medium switching valve 80, and the like.
Here, the operation control means 56 generates heat based on the deviation between the detected temperature of the heat medium thermistor 63 and the target temperature (which is set according to the temperature of the heat medium requested by the low temperature heating terminal 8b). The target rotational speed of the compressor 21 for setting the detected temperature of the medium thermistor 63 as the target temperature is obtained, and the rotational speed of the compressor 21 is controlled so as to be the obtained target rotational speed.
2, the heat medium from the low temperature heating terminal 8b is generated by the operation of the heat pump heat medium circulation pump 76 and the opening of the heat pump heat medium switching valve 75 to the low temperature heating terminal 8b side. The low-temperature heat medium return path 31b and the heat medium for heat pump 61 are supplied to the heat pump heating type heat exchanger 17 and heated. The heat medium heated by the heat pump heating heat exchanger 17 passes through the heat pump heat medium circulation pump 76 and is supplied to the low-temperature heating terminal 8 b through the low-temperature forward path 36. That is, the heat medium from the low temperature heating terminal 8b is heated by the heat pump heating type heat exchanger 17 through the heat medium circuit 9b for heat pump, and then supplied to the low temperature heating terminal 8b.

〔蓄熱運転〕
この蓄熱運転では、運転制御手段５６が、ヒートポンプ装置１６を運転させるとともに、ヒートポンプ用熱媒切換弁７５や蓄熱用熱媒切換弁８０等を切り換えることでヒートポンプ加熱状態に切り換える。
運転制御手段５６は、例えば、蓄熱スイッチがＯＮ操作されて蓄熱運転が要求されると、暖房用熱媒循環ポンプ３４を作動させる（この暖房用熱媒循環ポンプ３４に加えて、ヒートポンプ用熱媒循環ポンプ７６を作動させることも可能）。
そして、図３中太線にて示すように、ヒートポンプ加熱式熱交換器１７で加熱された熱媒は、ヒートポンプ用熱媒循環ポンプ７６を通過したのち、蓄熱用戻り路７８と熱媒戻り路３１を通して膨張タンク３３及び暖房用熱媒循環ポンプ３４に供給される。その後、第１熱媒路３２、低温往き路３６、蓄熱用往き路７９、及び、ヒートポンプ用熱媒路６１を通してヒートポンプ加熱式熱交換器１７に供給される。つまり、ヒートポンプ加熱式熱交換器１７で加熱された熱媒は、バーナ用熱媒循環路９ａの一部を介して膨張タンク３３及び暖房用熱媒循環ポンプ３４に供給されて、ヒートポンプ加熱式熱交換器１７による熱媒への蓄熱運転が実行され、例えば、バーナ潜熱加熱式熱交換器１５ａの出口側である第１熱媒路３２に設けられた熱媒サーミスタ（図示省略）による検出温度が設定温度に達した時点で蓄熱運転を終了する。 [Heat storage operation]
In this heat storage operation, the operation control means 56 operates the heat pump device 16 and switches to the heat pump heating state by switching the heat pump heat medium switching valve 75, the heat storage heat medium switching valve 80, and the like.
For example, when the heat storage switch is turned ON and the heat storage operation is requested, the operation control unit 56 operates the heating medium circulating pump 34 (in addition to the heating medium circulating pump 34, the heat medium for the heat pump). It is also possible to activate the circulation pump 76).
3, the heat medium heated by the heat pump heating type heat exchanger 17 passes through the heat pump heat medium circulation pump 76, and then the heat storage return path 78 and the heat medium return path 31. To the expansion tank 33 and the heating medium circulating pump 34 for heating. Thereafter, the heat pump heating heat exchanger 17 is supplied through the first heat medium path 32, the low temperature path 36, the heat storage path 79, and the heat pump heat medium path 61. That is, the heat medium heated by the heat pump heating heat exchanger 17 is supplied to the expansion tank 33 and the heating heat medium circulation pump 34 through a part of the heat medium circulation path 9a for the burner, and the heat pump heating heat is supplied. The heat storage operation to the heat medium by the exchanger 17 is executed. For example, the temperature detected by the heat medium thermistor (not shown) provided in the first heat medium path 32 on the outlet side of the burner latent heat heating type heat exchanger 15a is detected. When the set temperature is reached, the heat storage operation is terminated.

〔別実施形態〕
（１）先の実施形態では、ヒートポンプ用熱媒路６１と熱媒戻り路３１を蓄熱用戻り路７８により接続し、低温往き路３６とヒートポンプ用熱媒路６１を蓄熱用往き路７９により接続して、蓄熱用往き路７９と低温往き路３６との接続箇所に蓄熱用熱媒切換弁８０を設けた構成を示したが、図６に示すように、ヒートポンプ用熱媒路６１に４方切換弁８１を設け、その４方切換弁８１に対して、熱媒戻り路３１に接続の蓄熱用戻り路７８とヒートポンプ用熱媒路６１に接続の蓄熱用往き路７９を接続可能にして実施することもできる。
この図６に示す別実施形態においては、４方切換弁８１を図６の（ａ）に示すように切り換えることで、図中太線にて示すように、低温暖房端末８ｂからの熱媒は、ヒートポンプ用熱媒循環ポンプ７６の作動とヒートポンプ用熱媒切換弁７５の低温暖房端末８ｂ側への開弁により、低温熱媒戻り路３１ｂとヒートポンプ用熱媒路６１を通流してヒートポンプ加熱式熱交換器１７に供給されて加熱され、その後、ヒートポンプ用熱媒循環ポンプ７６と４方切換弁８１を通過し、低温往き路３６を通して低温暖房端末８ｂに供給される。つまり、低温暖房端末８ｂからの熱媒は、ヒートポンプ用熱媒循環路９ｂを通して、ヒートポンプ加熱式熱交換器１７により加熱され、その後、低温暖房端末８ｂに供給される。
また、４方切換弁８１を図６の（ｂ）に示すように切り換えることで、図中太線にて示すように、ヒートポンプ加熱式熱交換器１７で加熱された熱媒は、ヒートポンプ用熱媒循環ポンプ７６と４方切換弁８１を通過したのち、蓄熱用戻り路７８と熱媒戻り路３１を通して給湯装置１内の膨張タンク３３及び暖房用熱媒循環ポンプ３４に供給され、その後、低温往き路３６から４方切換弁８１を通過し、蓄熱用往き路７９、及び、ヒートポンプ用熱媒路６１を通してヒートポンプ加熱式熱交換器１７に供給される。つまり、ヒートポンプ加熱式熱交換器１７で加熱された熱媒は、バーナ用熱媒循環路９ａの一部を介して膨張タンク３３及び暖房用熱媒循環ポンプ３４に供給されて、ヒートポンプ加熱式熱交換器１７による熱媒への蓄熱運転が実行される。 [Another embodiment]
(1) In the previous embodiment, the heat pump heat medium path 61 and the heat medium return path 31 are connected by the heat storage return path 78, and the low temperature forward path 36 and the heat pump heat medium path 61 are connected by the heat storage forward path 79. Then, the configuration in which the heat storage heat medium switching valve 80 is provided at the connection point between the heat storage outbound path 79 and the low temperature outbound path 36 is shown, but as shown in FIG. A switching valve 81 is provided, and a heat storage return path 78 connected to the heat medium return path 31 and a heat storage forward path 79 connected to the heat pump heat medium path 61 can be connected to the four-way switching valve 81. You can also
In another embodiment shown in FIG. 6, by switching the four-way switching valve 81 as shown in FIG. 6A, the heat medium from the low-temperature heating terminal 8b is By operating the heat pump heat medium circulation pump 76 and opening the heat pump heat medium switching valve 75 to the low temperature heating terminal 8b side, the heat pump heating type heat is passed through the low temperature heat medium return path 31b and the heat pump heat medium path 61. The heat is supplied to the exchanger 17 and heated, and then passes through the heat medium circulating pump 76 for heat pump and the four-way switching valve 81 and is supplied to the low-temperature heating terminal 8 b through the low-temperature forward path 36. That is, the heat medium from the low temperature heating terminal 8b is heated by the heat pump heating type heat exchanger 17 through the heat medium circuit 9b for heat pump, and then supplied to the low temperature heating terminal 8b.
Further, by switching the four-way switching valve 81 as shown in FIG. 6 (b), the heat medium heated by the heat pump heating type heat exchanger 17 is converted into a heat pump heat medium as shown by a thick line in the figure. After passing through the circulation pump 76 and the four-way switching valve 81, the heat is supplied to the expansion tank 33 and the heating medium circulating pump 34 in the hot water supply device 1 through the heat storage return path 78 and the heat medium return path 31, and then goes back to low temperature. The refrigerant passes through the four-way switching valve 81 from the path 36 and is supplied to the heat pump heating heat exchanger 17 through the heat storage forward path 79 and the heat pump heat medium path 61. That is, the heat medium heated by the heat pump heating heat exchanger 17 is supplied to the expansion tank 33 and the heating heat medium circulation pump 34 through a part of the heat medium circulation path 9a for the burner, and the heat pump heating heat is supplied. The heat storage operation to the heat medium by the exchanger 17 is executed.

（２）先の実施形態では、給水路２からの水を給湯用バーナ潜熱加熱式熱交換器３と給湯用熱交換器７１にて加熱する構成を示し、更に、熱媒用のバーナ加熱式熱交換器１５として、バーナ潜熱加熱式熱交換器１５ａとバーナ顕熱加熱式熱交換器１５ｂを備えた構成を示したが、図７に示すように、給湯用バーナ潜熱加熱式熱交換器３をなくして、給水路２からの水を給湯用熱交換器７１のみにて加熱するように構成するとともに、熱媒用のバーナ加熱式熱交換器１５をひとつだけ設けて実施することもできる。
この図７に示す熱媒供給装置では、低温暖房運転のホットダッシュ運転モード及び高温運転モードのバーナ加熱状態において、図７中太線にて示すように、低温暖房端末８ｂからの熱媒は、熱媒戻り路３１の暖房用熱媒循環ポンプ３４を通過したのち、一部が低温往き路３６を通して低温暖房端末８ｂに供給され、残りの一部がバーナ加熱式熱交換器１５に供給されて加熱され、加熱後の熱媒は、循環用バイパス路７０及び給湯用熱交換器７１を通して膨張タンク３３に供給される。
なお、この図７に示す装置において、その他の構成については、図１〜図３に示す装置とほぼ同じなので、同じ符号を付すことにより説明を省略する。 (2) In the previous embodiment, a configuration in which the water from the water supply channel 2 is heated by the hot water supply burner latent heat heating type heat exchanger 3 and the hot water supply heat exchanger 71 is shown. As the heat exchanger 15, a configuration including a burner latent heat heating type heat exchanger 15 a and a burner sensible heat type heat exchanger 15 b has been shown, but as shown in FIG. 7, a hot water supply burner latent heat heating type heat exchanger 3 is provided. In this case, the water from the water supply channel 2 can be heated only by the hot water supply heat exchanger 71, and only one burner heating type heat exchanger 15 for the heat medium can be provided.
In the heating medium supply device shown in FIG. 7, in the hot dash operation mode of the low-temperature heating operation and the burner heating state in the high-temperature operation mode, as shown by the thick line in FIG. After passing through the heating medium circulating pump 34 for heating in the medium return path 31, a part is supplied to the low temperature heating terminal 8b through the low temperature forward path 36, and the remaining part is supplied to the burner heating type heat exchanger 15 for heating. The heated heat medium is supplied to the expansion tank 33 through the circulation bypass passage 70 and the hot water supply heat exchanger 71.
The other configuration of the apparatus shown in FIG. 7 is substantially the same as that of the apparatus shown in FIGS.

（３）これまでの実施形態では、暖房端末８として高温暖房端末８ａ（例えば浴室乾燥装置）と低温暖房端末８ｂ（例えば床暖房パネル）とを備えた例を示したが、低温暖房端末８ｂのみを備えた熱媒供給装置においても適応可能である。
更に、給湯用熱交換器７１、バーナ加熱式熱交換器１５、膨張タンク３３、及び、暖房用熱媒循環ポンプ３４等を備えた給湯装置１に対して、ヒートポンプ加熱式熱交換器１７及びヒートポンプ用熱媒循環ポンプ７６等を備えたヒートポンプ装置１６を別体に構成して、給湯装置１に外付けした例を示したが、ヒートポンプ装置１６を給湯装置１内に収納する形態で実施することもできる。 (3) In the embodiments so far, the example in which the high-temperature heating terminal 8a (for example, a bathroom drying device) and the low-temperature heating terminal 8b (for example, a floor heating panel) are provided as the heating terminal 8 has been described. The present invention can also be applied to a heat medium supply device provided with
Furthermore, with respect to the hot water supply apparatus 1 provided with the heat exchanger 71 for hot water supply, the burner heating type heat exchanger 15, the expansion tank 33, the heating medium circulation pump 34, etc., the heat pump heating type heat exchanger 17 and the heat pump. Although the example which comprised the heat pump apparatus 16 provided with the heat-medium circulation pump 76 grade | etc., As a different body, and was attached externally to the hot water supply apparatus 1 is implemented, implement in the form which accommodates the heat pump apparatus 16 in the hot water supply apparatus 1. You can also.

１ 給湯装置
２ 給水路
５ 給湯路
６ 給湯回路
７ 暖房加熱部
８ 暖房端末
９ 暖房回路
９ａ バーナ用熱媒循環路
９ｂ ヒートポンプ用熱媒循環路
１３ バーナ
１５ バーナ加熱式熱交換器
１６ ヒートポンプ装置
１７ ヒートポンプ加熱式熱交換器
３１ 熱媒戻り路
３３ 膨張タンク
３４ 暖房用熱媒循環ポンプ
３６ 熱媒往き路
７１ 給湯用熱交換器
７６ ヒートポンプ用熱媒循環ポンプ DESCRIPTION OF SYMBOLS 1 Hot-water supply apparatus 2 Hot-water supply path 5 Hot-water supply path 6 Hot-water supply circuit 7 Heating heating part 8 Heating terminal 9 Heating circuit 9a Heater circulation path for burners 9b Heat-medium circulation path for heat pumps 13 Burner 15 Burner heating type heat exchanger 16 Heat pump apparatus 17 Heat pump Heating type heat exchanger 31 Heat medium return path 33 Expansion tank 34 Heating medium circulation pump 36 Heating medium outlet path 71 Heat exchanger for hot water supply 76 Heat medium circulation pump for heat pump

Claims (4)

給水路からの水を給湯用熱交換器にて加熱して給湯路に供給する給湯回路と、暖房端末からの熱媒を暖房加熱部にて加熱して前記暖房端末に供給する暖房回路を備え、前記暖房加熱部として、バーナ加熱式熱交換器とヒートポンプ加熱式熱交換器とが設けられ、前記暖房回路が、膨張タンク及び暖房用熱媒循環ポンプを備えて、前記バーナ加熱式熱交換器にて熱媒を加熱するバーナ加熱状態と前記ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態とに切換自在に構成され、前記バーナ加熱式熱交換器にて加熱された熱媒を前記給湯用熱交換器に供給して給水路からの水を加熱可能に構成されている熱媒供給装置であって、
前記暖房端末からの熱媒の全量又はその一部を前記ヒートポンプ加熱式熱交換器に供給して暖房端末へ循環させるヒートポンプ用熱媒循環路が、前記バーナ加熱式熱交換器、給湯用熱交換器、膨張タンク、及び、暖房用熱媒循環ポンプをバイパスする状態で設けられ、そのヒートポンプ用熱媒循環路にヒートポンプ用熱媒循環ポンプが設けられ、
前記暖房端末からの熱媒を前記バーナ加熱式熱交換器に供給して暖房端末へ循環させるバーナ用熱媒循環路が、前記膨張タンク及び暖房用熱媒循環ポンプを備えて設けられ、前記ヒートポンプ加熱式熱交換器により加熱された熱媒を前記バーナ用熱媒循環路の一部を介して前記膨張タンク及び暖房用熱媒循環ポンプに供給する蓄熱運転が可能な熱媒供給装置。 A hot water supply circuit that heats water from a water supply path using a heat exchanger for hot water supply and supplies the hot water supply path to the hot water supply path, and a heating circuit that heats a heat medium from a heating terminal using a heating heating unit and supplies the heating medium to the heating terminal. As the heating and heating unit, a burner heating type heat exchanger and a heat pump heating type heat exchanger are provided, and the heating circuit includes an expansion tank and a heating medium circulation pump for heating, and the burner heating type heat exchanger The heat medium heated in the burner heating type heat exchanger is configured to be switchable between a burner heating state in which the heat medium is heated in the heat pump and a heat pump heating state in which the heat medium is heated in the heat pump heating type heat exchanger. A heating medium supply device configured to be able to heat the water from the water supply path by supplying to the hot water supply heat exchanger,
A heat medium circulation path for a heat pump for supplying the heat pump heating heat exchanger from the heating terminal or a part thereof to the heat pump heating heat exchanger and circulating it to the heating terminal includes the burner heating heat exchanger and heat exchange for hot water supply. Is provided in a state of bypassing the heating medium circulation pump, and the heating medium circulation pump for heating, the heat medium circulation pump for the heat pump is provided in the heat medium circulation path for the heat pump ,
A heating medium circulation path for a burner for supplying the heating medium from the heating terminal to the burner heating type heat exchanger and circulating it to the heating terminal is provided with the expansion tank and the heating medium circulation pump for heating, and the heat pump A heat medium supply device capable of a heat storage operation for supplying a heat medium heated by a heating heat exchanger to the expansion tank and a heating medium circulation pump through a part of the heating medium circulation path for the burner . 給水路からの水を給湯用熱交換器にて加熱して給湯路に供給する給湯回路と、暖房端末からの熱媒を暖房加熱部にて加熱して前記暖房端末に供給する暖房回路を備え、前記暖房加熱部として、バーナ加熱式熱交換器とヒートポンプ加熱式熱交換器とが設けられ、前記暖房回路が、膨張タンク及び暖房用熱媒循環ポンプを備えて、前記バーナ加熱式熱交換器にて熱媒を加熱するバーナ加熱状態と前記ヒートポンプ加熱式熱交換器にて熱媒を加熱するヒートポンプ加熱状態とに切換自在に構成され、前記バーナ加熱式熱交換器にて加熱された熱媒を前記給湯用熱交換器に供給して給水路からの水を加熱可能に構成されている熱媒供給装置であって、
前記暖房端末からの熱媒の全量又はその一部を前記ヒートポンプ加熱式熱交換器に供給して暖房端末へ循環させるヒートポンプ用熱媒循環路が、前記バーナ加熱式熱交換器、給湯用熱交換器、膨張タンク、及び、暖房用熱媒循環ポンプをバイパスする状態で設けられ、そのヒートポンプ用熱媒循環路にヒートポンプ用熱媒循環ポンプが設けられ、
前記ヒートポンプ加熱式熱交換器が、前記暖房端末からの熱媒を前記バーナ加熱式熱交換器へ戻す熱媒戻り路と、そのバーナ加熱式熱交換器にて加熱された熱媒を前記暖房端末に供給する熱媒往き路との間にわたって設けられている熱媒供給装置。 A hot water supply circuit that heats water from a water supply path using a heat exchanger for hot water supply and supplies the hot water supply path to the hot water supply path, and a heating circuit that heats a heat medium from a heating terminal using a heating heating unit and supplies the heating medium to the heating terminal. As the heating and heating unit, a burner heating type heat exchanger and a heat pump heating type heat exchanger are provided, and the heating circuit includes an expansion tank and a heating medium circulation pump for heating, and the burner heating type heat exchanger The heat medium heated in the burner heating type heat exchanger is configured to be switchable between a burner heating state in which the heat medium is heated in the heat pump and a heat pump heating state in which the heat medium is heated in the heat pump heating type heat exchanger. A heating medium supply device configured to be able to heat the water from the water supply path by supplying to the hot water supply heat exchanger,
A heat medium circulation path for a heat pump for supplying the heat pump heating heat exchanger from the heating terminal or a part thereof to the heat pump heating heat exchanger and circulating it to the heating terminal includes the burner heating heat exchanger and heat exchange for hot water supply. Is provided in a state of bypassing the heating medium circulation pump, and the heating medium circulation pump for heating, the heat medium circulation pump for the heat pump is provided in the heat medium circulation path for the heat pump,
The heat pump heating type heat exchanger returns the heating medium from the heating terminal to the burner heating type heat exchanger, and the heating medium is heated by the burner heating type heat exchanger. A heating medium supply device provided between the heating medium delivery path to be supplied to the vehicle. 前記ヒートポンプ加熱式熱交換器が、前記暖房端末からの熱媒を前記バーナ加熱式熱交換器へ戻す熱媒戻り路と、そのバーナ加熱式熱交換器にて加熱された熱媒を前記暖房端末に供給する熱媒往き路との間にわたって設けられている請求項１に記載の熱媒供給装置。 The heat pump heating type heat exchanger returns the heating medium from the heating terminal to the burner heating type heat exchanger, and the heating medium is heated by the burner heating type heat exchanger. The heat medium supply device according to claim 1 , wherein the heat medium supply apparatus is provided between a heat medium going path to be supplied to the heat medium. 前記ヒートポンプ加熱式熱交換器及びヒートポンプ用熱媒循環ポンプ等を備えたヒートポンプ装置が、前記給湯用熱交換器、バーナ加熱式熱交換器、膨張タンク、及び、暖房用熱媒循環ポンプ等を備えた給湯装置と別体に構成されている請求項１〜３のいずれか１項に記載の熱媒供給装置。
A heat pump device including the heat pump heating type heat exchanger and a heat medium circulation pump for the heat pump includes the hot water supply heat exchanger, a burner heating type heat exchanger, an expansion tank, and a heating medium circulation pump for heating. The heat-medium supply apparatus of any one of Claims 1-3 comprised separately from the hot water supply apparatus.
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