JP5720237B2 - Heat pump heat source machine - Google Patents
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- JP5720237B2 JP5720237B2 JP2010287635A JP2010287635A JP5720237B2 JP 5720237 B2 JP5720237 B2 JP 5720237B2 JP 2010287635 A JP2010287635 A JP 2010287635A JP 2010287635 A JP2010287635 A JP 2010287635A JP 5720237 B2 JP5720237 B2 JP 5720237B2
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本発明は、ヒートポンプ式熱源機に関し、特に、圧縮機と、蒸発器と、凝縮器と、送風機を収納する外装ケースの構造を改良したものである。 The present invention relates to a heat pump heat source device, and in particular, an improved structure of an outer case that houses a compressor, an evaporator, a condenser, and a blower.
近年、貯湯式給湯装置として、貯湯式のヒートポンプ式給湯装置が実用に供されている。この給湯装置は、温水を貯留する大容量の貯湯タンクと、ヒートポンプ回路を有するヒートポンプ式熱源機を備え、夜間割引の安価な電力を利用して、ヒートポンプ式熱源機で水道水を温水に加熱して、その温水を貯湯タンクに貯留しておき、蛇口や風呂などの所望の給湯先に給湯するものである。ヒートポンプ式熱源機は、大気に含まれる熱エネルギーを利用して水道水を加熱しているので、燃焼式熱源機や電気ヒータ式熱源機よりもエネルギー効率が良く、給湯コストの低減を図ることができる。 In recent years, a hot water storage type heat pump type hot water supply apparatus has been put to practical use as a hot water storage type hot water supply apparatus. This hot water supply device is equipped with a large-capacity hot water storage tank for storing hot water and a heat pump heat source device having a heat pump circuit, and heats tap water to hot water with a heat pump heat source device using cheap electricity at night discounts. The hot water is stored in a hot water storage tank and supplied to a desired hot water supply destination such as a faucet or bath. The heat pump type heat source machine heats tap water using the thermal energy contained in the atmosphere, so it is more energy efficient than the combustion type heat source machine and the electric heater type heat source machine, and can reduce the cost of hot water supply. it can.
ところで、図６に示すように、従来のヒートポンプ式熱源機１００は、圧縮機１０１と、蒸発器１０２と、凝縮器としての温水加熱用熱交換器１０３と、送風機１０６と、これらを収納する外装ケース１０４などを備えている。外装ケース１０４は、薄鋼板製の底板部と側板部と天板部とを有し、底板部に、前記の各種機器が配置されている。 By the way, as shown in FIG. 6, the conventional heat pump type heat source device 100 includes a compressor 101, an evaporator 102, a heat exchanger 103 for heating hot water as a condenser, a blower 106, and an exterior housing these components. A case 104 and the like are provided. The exterior case 104 has a bottom plate portion, a side plate portion, and a top plate portion made of a thin steel plate, and the various devices are arranged on the bottom plate portion.
外装ケース１０４内において、温水加熱用熱交換器１０３は、発泡断熱材（図示略）で覆われ、発泡断熱材の周囲が保護カバー１０５で覆われている。この保護カバー１０５は、凝縮器１０３の作動時における振動音を抑制する為に設けられ、底板部にビスで締結固定されている。従来のヒートポンプ式熱源機１００では、温水加熱用熱交換器１０３の運転停止状態のとき、温水加熱用熱交換器１０３に冷媒が滞留される構造になっている。尚、特許文献１のヒートポンプ式熱源装置も、外装ケース内において凝縮器が発泡断熱容器に収納され、その発泡断熱容器の周囲が保護カバーで覆われている。 In the exterior case 104, the hot water heating heat exchanger 103 is covered with a foam heat insulating material (not shown), and the periphery of the foam heat insulating material is covered with a protective cover 105. This protective cover 105 is provided to suppress vibration noise during operation of the condenser 103, and is fastened and fixed to the bottom plate portion with screws. The conventional heat pump heat source apparatus 100 has a structure in which refrigerant is retained in the hot water heating heat exchanger 103 when the operation of the hot water heating heat exchanger 103 is stopped. In the heat pump heat source device of Patent Document 1, a condenser is housed in a foam insulation container in the exterior case, and the periphery of the foam insulation container is covered with a protective cover.
従来のヒートポンプ式熱源機においては、保護カバーが外装ケースの底板部とは別体に設けられているので、凝縮器の運転停止状態のとき、凝縮器に滞留された冷媒が凝縮器から漏洩する虞があり、特に、可燃性の冷媒を使用した場合、それが気化した可燃性の冷媒ガスが保護カバーと外装ケースの底板部の隙間から外装ケース内へ漏洩した場合の安全性が懸念される。 In the conventional heat pump heat source machine, the protective cover is provided separately from the bottom plate portion of the outer case, so that the refrigerant retained in the condenser leaks from the condenser when the condenser is stopped. There is a concern, especially when a flammable refrigerant is used, there is a concern about the safety when the flammable refrigerant gas evaporated from the refrigerant leaks into the outer case from the gap between the protective cover and the bottom plate of the outer case. .
しかも、ヒートポンプ式熱源機を分解して凝縮器を分別廃棄する場合に、外装ケースから凝縮器を取り外す際に、外装ケースと、送風機と、凝縮器の接続管と接続される内部配管と、保護カバーを取り外す必要があるので、凝縮器の取り外し作業が面倒である。
更に、保護カバーは、外装ケースの底板部にビスで締結固定されているだけなので、保護カバーを容易に取り外すことができるため、上部からのいたずら等による凝縮器の損傷を防止することが困難である。
Moreover, when disassembling and disposing of the condenser by disassembling the heat pump heat source unit, when removing the condenser from the outer case, the outer case, the blower, the internal pipe connected to the condenser connecting pipe, and protection Since it is necessary to remove the cover, it is troublesome to remove the condenser.
Furthermore, since the protective cover is only fastened and fixed to the bottom plate of the outer case with screws, it is easy to remove the protective cover, making it difficult to prevent damage to the condenser due to mischief from the top. is there.
本発明の目的は、凝縮器に滞留された冷媒の外装ケース内への漏洩を防止可能なヒートポンプ式熱源機を提供すること、凝縮器を分別廃棄する場合に、外装ケースから凝縮器を容易に取り外すことができるヒートポンプ式熱源機を提供すること、いたずら等による凝縮器の損傷を防止できるヒートポンプ式熱源機を提供することである。 An object of the present invention is to provide a heat pump type heat source device that can prevent leakage of refrigerant accumulated in a condenser into the outer case, and to easily remove the condenser from the outer case when the condenser is separated and discarded. It is to provide a heat pump heat source device that can be removed, and to provide a heat pump heat source device that can prevent damage to the condenser due to mischief and the like.
請求項１のヒートポンプ式熱源機は、圧縮機と、蒸発器と、凝縮器と、送風機と、これらを収納する外装ケースとを備えたヒートポンプ式熱源機において、前記外装ケースは底板部と側板部と天板部とを有し、前記底板部は下端開放状の凹入部が形成された箱形部を有し、前記箱形部内の凹入部に、前記凝縮器を複数の保温材分割体で覆った状態にして配置したことを特徴としている。 The heat pump heat source apparatus according to claim 1 is a heat pump heat source apparatus including a compressor, an evaporator, a condenser, a blower, and an outer case for housing them, wherein the outer case includes a bottom plate portion and a side plate portion. And the top plate portion, the bottom plate portion has a box-shaped portion in which a recessed portion having an open lower end is formed, and the condensing portion in the box-shaped portion includes a plurality of heat insulating material divided bodies. It is characterized by being placed in a covered state .
請求項２のヒートポンプ式熱源機は、請求項１の発明において、前記凹入部の上壁部に開口部を設け、前記凝縮器の接続配管は、前記の開口部から上方へ延びて内部配管に接続されることを特徴としている。 According to a second aspect of the present invention, the heat pump heat source apparatus according to the first aspect of the present invention is provided with an opening in the upper wall portion of the recessed portion, and the connection pipe of the condenser extends upward from the opening to the internal pipe. It is characterized by being connected.
請求項３のヒートポンプ式熱源機は、請求項１又は２の発明において、前記凹入部の上壁部には、前記送風機を支持する支持板を固定する為の固定部材が設けられたことを特徴としている。 The heat pump heat source apparatus according to claim 3 is characterized in that, in the invention of claim 1 or 2, a fixing member for fixing a support plate for supporting the blower is provided on the upper wall portion of the recessed portion. It is said.
請求項４のヒートポンプ式熱源機は、請求項１〜３の発明の何れか１項において、前記凹入部の下側に、前記凝縮器の下面側を覆う下カバーを設け、前記ヒートポンプ式熱源機が据え付けられた状態では、前記下カバーと前記底板部との間の少なくとも一部に隙間が形成されたことを特徴としている。 A heat pump heat source machine according to a fourth aspect of the present invention is the heat pump heat source machine according to any one of the first to third aspects, wherein a lower cover that covers a lower surface side of the condenser is provided below the recessed portion. In a state where is installed, a gap is formed in at least a part between the lower cover and the bottom plate portion.
請求項５のヒートポンプ式熱源機は、請求項４の発明において、前記下カバーの下面に１又は複数の支持脚が設けられ、前記下カバーは前記底板部とは独立に前記支持脚を介して据え付け面に支持されることを特徴としている。 According to a fifth aspect of the present invention, there is provided the heat pump heat source apparatus according to the fourth aspect, wherein one or a plurality of support legs are provided on the lower surface of the lower cover, and the lower cover is provided via the support legs independently of the bottom plate portion. It is supported by the mounting surface.
請求項１の発明によれば、外装ケースは底板部と側板部と天板部とを有し、底板部は下端開放状の凹入部が形成された箱形部を有し、前記箱形部内の凹入部に、前記凝縮器を複数の保温材分割体で覆った状態にして配置したので、凝縮器の運転停止状態のとき、凝縮器に滞留された冷媒が凝縮器から漏洩したとしても、それが気化した冷媒ガスが底板部の下側（地面側）へ流れるため、ケース内に冷媒ガスが滞留することを確実に防止すること According to the invention of claim 1, the exterior case has a bottom plate portion, a side plate portion, and a top plate portion, and the bottom plate portion has a box-shaped portion in which a recessed portion having an open bottom is formed, and the inside of the box-shaped portion Since the condenser is arranged in a state where the condenser is covered with a plurality of heat insulating material divided bodies, even when the refrigerant stagnated in the condenser leaks from the condenser when the condenser is stopped, Since the vaporized refrigerant gas flows to the lower side (ground side) of the bottom plate part, it is possible to reliably prevent the refrigerant gas from staying in the case.
また、ヒートポンプ式熱源機を分解して凝縮器を分別廃棄する場合、箱形部の凹入部の下側から複数の保温材分割体と共に凝縮器だけを取り外すことができるので、凝縮器を分別廃棄する際の外装ケースからの凝縮器の取り外し作業を容易に行うことができる。
更に、凹入部に凝縮器を配置したので、上部から凝縮器に容易にアクセスすることができないため、上部からのいたずら等による凝縮器の損傷を確実に防止することができる。
In addition, when disassembling and disposing of the condenser by disassembling the heat pump heat source machine, only the condenser can be removed from the lower side of the recessed part of the box-shaped part together with the multiple heat insulating material divisions. It is possible to easily remove the condenser from the outer case during the process.
Furthermore, since the condenser is disposed in the recessed portion, the condenser cannot be easily accessed from the upper portion, and therefore, damage to the condenser due to mischief from the upper portion can be reliably prevented.
請求項２の発明によれば、底板部の上壁部に凹入部に連通した開口部を設け、凝縮器の接続配管は、前記の開口部から上方へ延びて内部配管に接続されるので、空気よりも重い冷媒ガスが開口部から外装ケース内へ漏洩するのを防止することができる。 According to the invention of claim 2, the opening connected to the recessed portion is provided in the upper wall portion of the bottom plate portion, and the connecting pipe of the condenser extends upward from the opening and is connected to the internal piping. It is possible to prevent the refrigerant gas heavier than air from leaking from the opening into the outer case.
請求項３の発明によれば、凹入部の上壁部には、送風機を支持する支持板を固定する為の固定部材が設けられたので、送風機の取り付け位置を低くして、外装ケースの小型化を図ることができる。また、底板部に一体化された強度のある箱形部の凹入部の上壁部に固定部材が設けられたので、固定部材により送風機を安定した状態で支持板を介して固定することができると共に、送風機の運転時の振動を抑制することができる。 According to the invention of claim 3, since the fixing member for fixing the support plate for supporting the blower is provided on the upper wall portion of the recessed portion, the mounting position of the blower is lowered and the exterior case is made small. Can be achieved. Further, since the fixing member is provided on the upper wall portion of the recessed portion of the strong box-shaped portion integrated with the bottom plate portion, the blower can be fixed by the fixing member through the support plate in a stable state. At the same time, vibration during operation of the blower can be suppressed.
請求項４の発明によれば、凹入部の下側に、凝縮器の下面側を覆う下カバーを設け、ヒートポンプ式熱源機が据え付けられた状態では、下カバーと底板部との間の少なくとも一部に隙間が形成されたので、凝縮器に滞留された冷媒が漏洩したとしても、それが気化した冷媒ガスがその隙間から底板部の下側へ流れるため、冷媒ガスが外装ケース内へ漏洩するのを確実に防止することができる。 According to the fourth aspect of the present invention, the lower cover that covers the lower surface side of the condenser is provided below the recessed portion, and in a state where the heat pump heat source device is installed, at least one between the lower cover and the bottom plate portion. Since a gap is formed in the part, even if the refrigerant retained in the condenser leaks, the refrigerant gas that has vaporized flows from the gap to the lower side of the bottom plate part, so that the refrigerant gas leaks into the exterior case Can be surely prevented.
請求項５の発明によれば、下カバーの下面に１又は複数の支持脚が設けられたので、下カバーは底板部とは独立に支持脚を介して据え付け面に支持されるので、凝縮器を安定した状態で凹入部に配置することができる。また、凝縮器運転時における振動を抑制することができると共に、底板部への振動伝達を抑制することができる。 According to the invention of claim 5, since one or a plurality of support legs are provided on the lower surface of the lower cover, the lower cover is supported on the installation surface via the support legs independently of the bottom plate portion. Can be placed in the recessed portion in a stable state. In addition, vibration during condenser operation can be suppressed, and vibration transmission to the bottom plate portion can be suppressed.
以下、本発明を実施するための形態について実施例に基づいて説明する。 Hereinafter, modes for carrying out the present invention will be described based on examples.
図１に示すように、貯湯式ヒートポンプ式給湯装置１は、貯湯タンクユニット２と、ヒートポンプ式熱源機３と、配管類６，７，８，９ａ，９ｂ，１０と、主制御部１１などを有する。 As shown in FIG. 1, a hot water storage type heat pump type hot water supply apparatus 1 includes a hot water storage tank unit 2, a heat pump type heat source unit 3, pipes 6, 7, 8, 9a, 9b, 10 and a main control unit 11. Have.
図１、図２に示すように、貯湯タンクユニット２は、縦長筒状の外周面を有する貯湯タンク１２と、この貯湯タンク１２の外面側を覆う保温材１３と、貯湯タンク１２と保温材１３を収容可能な外装ケース１４とを備えている。貯湯タンク１２は、ヒートポンプ式熱源機３で加熱された高温の温水を貯留するものであり、耐腐食性に優れたステンレス製の板材で構成され、半球状に形成された上下１対のタンク上部及びタンク下部と、縦長の円筒状のタンク胴部とが溶接により一体化されている。 As shown in FIGS. 1 and 2, the hot water storage tank unit 2 includes a hot water storage tank 12 having a vertically long cylindrical outer peripheral surface, a heat insulating material 13 covering the outer surface side of the hot water storage tank 12, a hot water storage tank 12 and a heat insulating material 13. And an exterior case 14 capable of accommodating the above. The hot water storage tank 12 stores high-temperature hot water heated by the heat pump heat source unit 3, and is composed of a stainless steel plate having excellent corrosion resistance, and a pair of upper and lower tanks formed in a hemispherical shape. And the tank lower part and the vertically long cylindrical tank trunk | drum are integrated by welding.
タンク１２の下端部には、水道管などの給水管７と温水循環用配管９ａに接続される下部配管８が接続されている。給水管７には、貯湯タンク１２へ水道水を補充する為の開閉弁１５が設けられており、開閉弁１５が開いて水道水を貯湯タンク１２内に補充するようになっている。その貯湯タンク１２から液送ポンプ１６を介して温水（貯留水）が下部配管８、温水循環用配管９ａを通りヒートポンプ式熱源機３に送られる。ヒートポンプ式熱源機３で加熱された温水は温水循環用配管９ｂへ流れる。 A lower pipe 8 connected to a water supply pipe 7 such as a water pipe and a hot water circulation pipe 9 a is connected to the lower end of the tank 12. The water supply pipe 7 is provided with an open / close valve 15 for replenishing the hot water storage tank 12 with tap water, and the open / close valve 15 is opened to replenish the hot water storage tank 12 with tap water. Hot water (reserved water) is sent from the hot water storage tank 12 to the heat pump heat source unit 3 through the lower pipe 8 and the hot water circulation pipe 9 a via the liquid feed pump 16. The hot water heated by the heat pump heat source unit 3 flows into the hot water circulation pipe 9b.
タンク１２の上端部には、温水循環用配管９ｂと出湯用配管６に接続される上部配管１０が接続されている。上部配管１０には開閉弁１７が設けられている。開閉弁１５, １７を開くと、貯湯タンク１２内に貯留された高温の温水（例えば、８０〜９０℃）を上部配管１０に供給することができる。 An upper pipe 10 connected to the hot water circulation pipe 9 b and the hot water supply pipe 6 is connected to the upper end of the tank 12. The upper pipe 10 is provided with an on-off valve 17. When the on-off valves 15 and 17 are opened, high-temperature hot water (for example, 80 to 90 ° C.) stored in the hot water storage tank 12 can be supplied to the upper pipe 10.
保温材１３は、例えば、発泡ポリプロピレン、発泡ポリスチレン等の樹脂を発泡成形した発泡断熱材で構成され、貯湯タンク１２の外面側を覆って貯湯タンク１２に貯留された温水の温度低下を防ぐ断熱機能を有する。 The heat insulating material 13 is composed of, for example, a foam heat insulating material obtained by foaming a resin such as expanded polypropylene or expanded polystyrene, and covers the outer surface of the hot water storage tank 12 to prevent a decrease in temperature of the hot water stored in the hot water storage tank 12. Have
保温材１３には、タンク軸方向に複数の収容凹部が所定間隔おきに形成されている。これら複数の収容凹部には、複数の温度センサ３１〜３４が高さ方向所定間隔おきの位置に配置されている。温度センサ３１〜３４は主制御部１１に接続されており、温度センサ３１〜３４の温度検出信号が主制御部１１に供給される。 In the heat insulating material 13, a plurality of housing recesses are formed at predetermined intervals in the tank axial direction. A plurality of temperature sensors 31 to 34 are arranged at predetermined intervals in the height direction in the plurality of housing recesses. The temperature sensors 31 to 34 are connected to the main control unit 11, and temperature detection signals from the temperature sensors 31 to 34 are supplied to the main control unit 11.
外装ケース１４は、薄鋼板製で貯湯タンク１２の軸心方向に所定の長さを有する断面矩形の直方体の箱状に形成され、４つの側板部（つまり、左右の側板部、前後の側板部）と、上面板（天板）と、下面板とから構成されている。 The exterior case 14 is made of a thin steel plate and is formed in a rectangular parallelepiped box shape having a predetermined length in the axial direction of the hot water storage tank 12, and has four side plate portions (that is, left and right side plate portions, front and rear side plate portions). ), An upper surface plate (top plate), and a lower surface plate.
ヒートポンプ式熱源機３は、炭化水素系などの冷媒の循環流通経路上に、蒸発器としての空気熱交換器１８と、送風モータ１９ａで駆動される送風機１９と、圧縮機２０と、凝縮器としての温水加熱用熱交換器２１と、高圧の冷媒を急膨張させて圧力を下げる膨張弁２２とが順次接続されたヒートポンプ回路２３と、主制御部１１に接続された補助制御部２４と、これらを収納する外装ケース２５とを備えている。 The heat pump type heat source unit 3 includes an air heat exchanger 18 as an evaporator, a blower 19 driven by a blower motor 19a, a compressor 20, and a condenser on a circulation circulation path of a hydrocarbon-based refrigerant or the like. A heat pump for hot water heating 21, an expansion valve 22 for rapidly expanding a high-pressure refrigerant to lower the pressure, an auxiliary control unit 24 connected to the main control unit 11, and And an outer case 25 for storing the.
ヒートポンプ式熱源機３において、圧縮機２０を駆動することにより高圧まで圧縮された加熱状態の冷媒は、温水加熱用熱交換器２１に送られ、液送ポンプ１６の駆動によりタンク１２の下端部から下部配管８を経て温水循環用配管９ａに流入した温水又は水と熱交換してその温水又は水を暖め、加熱された温水が温水循環用配管９ｂ、上部配管１０を通って貯湯タンクユニット２の貯湯タンク１２に貯留され、ヒートポンプ式熱源機３を経由する加熱動作を繰り返すことで貯湯タンク１２に高温の温水が貯留される。 In the heat pump heat source unit 3, the heated refrigerant compressed to a high pressure by driving the compressor 20 is sent to the heat exchanger 21 for heating the hot water, and from the lower end of the tank 12 by driving the liquid feed pump 16. The hot water or water that has flowed into the hot water circulation pipe 9a through the lower pipe 8 is heat-exchanged to warm the hot water or water, and the heated hot water passes through the hot water circulation pipe 9b and the upper pipe 10 in the hot water storage tank unit 2. Hot water of high temperature is stored in the hot water storage tank 12 by repeating the heating operation stored in the hot water storage tank 12 and passing through the heat pump heat source unit 3.
補助制御部２４は、主制御部１１との間でデータ通信可能であり、主制御部１１からの指令に従ってヒートポンプ回路２３の各種機器（送風モータ１９ａ、圧縮機２０など）の動作制御を実行する。温水加熱用熱交換器２１の出口側部分において、温水循環用配管９ｂには、温水温度を検知するための温度センサ２６が設けられ、その検出信号が主制御部１１に供給されている。補助制御部２４は、温水の加熱温度が主制御部１１から指示された温度となるまで、ヒートポンプ式熱源機３を作動させる。 The auxiliary control unit 24 is capable of data communication with the main control unit 11, and performs operation control of various devices (such as the blower motor 19 a and the compressor 20) of the heat pump circuit 23 in accordance with instructions from the main control unit 11. . In the outlet side portion of the hot water heating heat exchanger 21, the hot water circulation pipe 9 b is provided with a temperature sensor 26 for detecting the hot water temperature, and the detection signal is supplied to the main control unit 11. The auxiliary control unit 24 operates the heat pump heat source unit 3 until the heating temperature of the hot water reaches the temperature instructed by the main control unit 11.
ユーザによる給湯操作が行われると、貯湯タンク１２に貯留された温水が出湯用配管６に流れ、その温水と給水管７から供給される水道水とが混合弁２７で混合され、所定の温度となって蛇口などの給湯栓４に給湯される。混合弁２７の上流部、下流部、給水管７の途中部には、夫々、温水温度又は入水温度を検知するための温度センサ２８〜３０が設けられ、これら温度センサ２８〜３０の検出信号が主制御部１１に供給されている。主制御部１１は、これら温度センサ２８〜３０で検知された温度検知データに基づいて、混合弁２７を制御して温水と水の混合比を調節することで給湯する温水の温度を調整する。 When a hot water supply operation is performed by the user, the hot water stored in the hot water storage tank 12 flows into the hot water supply pipe 6, and the hot water and tap water supplied from the water supply pipe 7 are mixed by the mixing valve 27, Then, hot water is supplied to the hot water tap 4 such as a faucet. Temperature sensors 28 to 30 for detecting the hot water temperature or the incoming water temperature are provided in the upstream portion, the downstream portion of the mixing valve 27, and the middle portion of the water supply pipe 7, respectively. It is supplied to the main control unit 11. Based on the temperature detection data detected by these temperature sensors 28 to 30, the main control unit 11 controls the mixing valve 27 and adjusts the mixing ratio of the hot water and water to adjust the temperature of hot water to be supplied.
主制御部１１は、ユーザが操作可能な操作リモコン３５との間でデータ通信可能であり、ユーザによる操作リモコン３５のスイッチ操作により目標給湯温度が設定されると、その目標給湯温度データが操作リモコン３５から主制御部１１に送信される。主制御部１１は、給湯動作時には、目標給湯温度データ及び温度センサ３１〜３４からの温度検知データに基づいて、ヒートポンプ式熱源機３で温水を加熱する加熱温度を決定し、補助制御部２４にその加熱温度を指示する。 The main control unit 11 can perform data communication with the operation remote controller 35 that can be operated by the user. When the target hot water temperature is set by a switch operation of the operation remote controller 35 by the user, the target hot water temperature data is stored in the operation remote controller. 35 to the main control unit 11. During the hot water supply operation, the main control unit 11 determines the heating temperature for heating the hot water by the heat pump heat source unit 3 based on the target hot water supply temperature data and the temperature detection data from the temperature sensors 31 to 34, and sends it to the auxiliary control unit 24. The heating temperature is indicated.
次に、本願特有の外装ケース２５の構造について説明する。
外装ケース２５は、薄鋼板製で縦長の断面矩形の直方体の箱状に形成され、左右１対の側板部３６と、前側板部３７と、後側板部３８と、上板部（天板部）４０と、底板部４１とで構成されている。
Next, the structure of the exterior case 25 unique to the present application will be described.
The outer case 25 is made of a thin steel plate and is formed in a rectangular parallelepiped box shape having a vertically long cross-section, and includes a pair of left and right side plate portions 36, a front side plate portion 37, a rear side plate portion 38, and an upper plate portion (top plate portion). ) 40 and a bottom plate portion 41.
図２〜図４に示すように、底板部４１は、下端開放状の凹入部４２が形成された平面視横長矩形の箱形部４１ａと、底壁部４１ｂとを備え、これら箱形部４１ａと底壁部４１ｂとがプレス成形により一体品に構成されている。箱形部４１ａは、上壁部４３と、上壁部４３の前後両端から略直角に下方に屈曲され所定長さ延びる前壁部４４及び後壁部（図示略）と、上壁部４３の左右両端から略直角に下方に屈曲され所定長さ延びる左右１対の側壁部４５とを備えている。 As shown in FIGS. 2 to 4, the bottom plate portion 41 includes a box-shaped portion 41 a having a horizontally long rectangular shape in plan view in which a recessed portion 42 having an open lower end is formed, and a bottom wall portion 41 b, and these box-shaped portions 41 a. And the bottom wall portion 41b are integrally formed by press molding. The box-shaped portion 41 a includes an upper wall portion 43, front wall portions 44 and rear wall portions (not shown) that are bent downward at substantially right angles from both front and rear ends of the upper wall portion 43 and extend a predetermined length, and the upper wall portion 43. A pair of left and right side wall portions 45 bent downward at substantially right angles from both left and right ends and extending a predetermined length are provided.
底壁部４１ｂは、箱形部４１ａの壁部４４，４５の下端に連なり、凹入部４２の開口部４２ａの外周側にフランジ状に形成されている。尚、上壁部４３と４つの壁部４４，４５とをプレス成形にて一体成形したものを底壁部４１ｂの上面に溶接して形成してもよい。 The bottom wall portion 41 b is connected to the lower ends of the wall portions 44 and 45 of the box-shaped portion 41 a and is formed in a flange shape on the outer peripheral side of the opening portion 42 a of the recessed portion 42. The upper wall portion 43 and the four wall portions 44 and 45 may be integrally formed by press molding and welded to the upper surface of the bottom wall portion 41b.
底板部４１において、凹入部４２は、横長矩形状の開口部４２ａから上方へ向かって所定の深さを有し、この凹入部４２には、温水加熱用熱交換器２１と、温水加熱用熱交換器２１を覆う保温材４７とが収容されている。凹入部４２は、温水加熱用熱交換器２１の運転時における振動音を抑制する保護カバーとしての機能も有する。 In the bottom plate portion 41, the recessed portion 42 has a predetermined depth upward from the horizontally-long rectangular opening 42a. The recessed portion 42 includes the hot water heating heat exchanger 21 and the hot water heating heat. A heat insulating material 47 covering the exchanger 21 is accommodated. The recessed portion 42 also has a function as a protective cover for suppressing vibration noise during operation of the hot water heating heat exchanger 21.
保温材４７は、上下に２分割された１対の分割体４７ａ，４７ｂで構成され、それらの内部には、温水加熱用熱交換器２１を収容する収容凹部が形成されている。保温材４７は、例えば、発泡ポリプロピレン、発泡ポリスチレン等の樹脂を発泡成形した発泡断熱材で構成されている。 The heat insulating material 47 is composed of a pair of divided bodies 47a and 47b that are divided into two parts in the upper and lower directions, and an accommodating recess for accommodating the heat exchanger 21 for heating hot water is formed therein. The heat insulating material 47 is made of, for example, a foam heat insulating material obtained by foam molding a resin such as foamed polypropylene or foamed polystyrene.
上壁部４３には、前記凹入部４２に連通した開口部４３ａが設けられている。温水加熱用熱交換器２１の複数の接続配管２１ａは、前記の開口部４３ａから上方へ延びて、圧縮機２０と接続する冷媒循環用配管２３ａ（内部配管）に接続されている。底板部４１の右側の底壁部４１ｂの上には、圧縮機２０等が配置されている。 The upper wall portion 43 is provided with an opening 43 a that communicates with the recessed portion 42. The plurality of connection pipes 21 a of the heat exchanger 21 for heating hot water extends upward from the opening 43 a and is connected to a refrigerant circulation pipe 23 a (internal pipe) connected to the compressor 20. On the bottom wall portion 41b on the right side of the bottom plate portion 41, the compressor 20 and the like are arranged.
底板部４１の上壁部４３には、送風機１９を支持する支持板４８を固定する為の固定部材４９がビスで固定されている。支持板４８は、上下方向に所定の長さを有する本体板部４８ａと、本体板部４８ａの上端部から直角に後方に屈曲された上板部４８ｂと、本体板部４８ａの下端部から直角に前方に屈曲された底板部４８ｃとを備えている。 A fixing member 49 for fixing the support plate 48 that supports the blower 19 is fixed to the upper wall portion 43 of the bottom plate portion 41 with screws. The support plate 48 includes a main body plate portion 48a having a predetermined length in the vertical direction, an upper plate portion 48b bent rearward at a right angle from the upper end portion of the main body plate portion 48a, and a right angle from the lower end portion of the main body plate portion 48a. And a bottom plate portion 48c bent forward.
送風機１９は、送風モータ１９ａを介して支持板４８の本体板部４８ａの中段部分に取り付けられ、上板部４８ｂが外装ケース２５の後側板部３８の上端部に固定され、底板部４８ｃが前記の固定部材４９に固定されている。送風機１９の背面と左側面に亙る平面視にてＬ形の空気熱交換器１８が底壁部４１ｂの上に装備されている。 The blower 19 is attached to the middle portion of the main body plate portion 48a of the support plate 48 via the blower motor 19a, the upper plate portion 48b is fixed to the upper end portion of the rear side plate portion 38 of the exterior case 25, and the bottom plate portion 48c is The fixing member 49 is fixed. An L-shaped air heat exchanger 18 is mounted on the bottom wall portion 41b in a plan view over the back and left side of the blower 19.
底壁部４１ｂの下面の左右両端部分には、前後方向に所定の長さを有する左右１対の金属製の支持脚４９ａ，４９ｂがビスで固定されている。これら１対の支持脚４９ａ，４９ｂを所定のコンクリート製の設置台５１の据え付け面５１ａに設置することにより、ヒートポンプ式熱源機３が設置台５１の据え付け面５１ａに据え付けられる。 A pair of left and right metal support legs 49a and 49b having a predetermined length in the front-rear direction are fixed to the left and right end portions of the lower surface of the bottom wall portion 41b with screws. By installing the pair of support legs 49 a and 49 b on the installation surface 51 a of the predetermined concrete installation table 51, the heat pump heat source device 3 is installed on the installation surface 51 a of the installation table 51.
底板部４１の凹入部４２の下側には、保温材４７を介して温水加熱用熱交換器２１の下面側の大部分を覆う薄鋼板製の下カバー５０が設けられている。この下カバー５０は横長矩形の平板状に形成されている。下カバー５０の左右方向の長さは、凹入部４２の左右長よりも僅かに小さく設定されている。下カバー５０の前後方向の長さは 凹入部４２の前後長よりも大きく設定されている。下カバー５０の前端部と後端部は、底壁部４１ｂの開口部４２ａの前側及び後側周縁近傍部に形成された複数のビス孔に複数のビスで固定されている。温水加熱用熱交換器２１は、保温材４７を介して下カバー５０の上に載置されている。 A lower cover 50 made of a thin steel plate is provided below the recessed portion 42 of the bottom plate portion 41 so as to cover most of the lower surface side of the heat exchanger 21 for heating hot water via a heat insulating material 47. The lower cover 50 is formed in a horizontally long rectangular flat plate shape. The length of the lower cover 50 in the left-right direction is set slightly smaller than the left-right length of the recessed portion 42. The length of the lower cover 50 in the front-rear direction is set larger than the front-rear length of the recessed portion 42. The front end portion and the rear end portion of the lower cover 50 are fixed with a plurality of screws in a plurality of screw holes formed in the front side and the rear periphery vicinity portion of the opening 42a of the bottom wall portion 41b. The hot water heating heat exchanger 21 is placed on the lower cover 50 via a heat insulating material 47.
図４に示すように、ヒートポンプ式熱源機３を設置台５１の据え付け面５１ａに据え付けた状態において、底壁部４１ｂに固定された下カバー５０の左右両端部と底壁部４１ｂとの間に僅かな隙間５２が形成され、温水加熱用熱交換器２１が運転停止状態のとき、温水加熱用熱交換器２１に滞留された炭化水素系の冷媒が温水加熱用熱交換器２１から漏洩して気化したとしても、その冷媒ガスが上記の隙間５２から地面側へ流れるように構成されている。そのため、外装ケース２５内に冷媒ガスが流入して滞留することがない。 As shown in FIG. 4, in a state where the heat pump type heat source device 3 is installed on the installation surface 51a of the installation table 51, between the left and right end portions of the lower cover 50 fixed to the bottom wall portion 41b and the bottom wall portion 41b. When a slight gap 52 is formed and the hot water heating heat exchanger 21 is in the shutdown state, the hydrocarbon-based refrigerant retained in the hot water heating heat exchanger 21 leaks from the hot water heating heat exchanger 21. Even if it vaporizes, the refrigerant gas flows from the gap 52 to the ground side. Therefore, the refrigerant gas does not flow into and stay in the outer case 25.
以上説明したヒートポンプ式熱源機３の作用効果について説明する。
貯湯式ヒートポンプ式給湯装置１においては、夜間割引の安価な電力を利用して、ヒートポンプ式熱源機３の各種機器（送風モータ１９ａ、圧縮機２０など）を駆動して、ヒートポンプ式熱源機３で一日に必要な量の温水を作り、その蓄熱した高温の温水を貯湯タンク１２に貯留しておき、出湯する際、高温の温水と水道水とを混合して、ユーザの欲する所望の温度にして、蛇口や風呂などの給湯先に給湯する。
The effect of the heat pump type heat source apparatus 3 demonstrated above is demonstrated.
In the hot water storage type heat pump type hot water supply apparatus 1, various devices (such as the blower motor 19 a and the compressor 20) of the heat pump type heat source unit 3 are driven by using cheap power at night discount, and the heat pump type heat source unit 3 The amount of hot water required for the day is made, and the hot hot water stored is stored in the hot water storage tank 12, and when the hot water is discharged, the hot hot water and tap water are mixed to obtain the desired temperature desired by the user. Then, hot water is supplied to hot water sources such as faucets and baths.
外装ケース２５は底板部４１と４つの側板部３６〜３８と天板部４０とを有し、底板部４１は下端開放状の凹入部４２が形成された箱形部４１ａを有し、この凹入部４２に温水加熱用熱交換器２１と保温材４７を配置したので、温水加熱用熱交換器２１の運転停止状態のとき、温水加熱用熱交換器２１に滞留された可燃性の炭化水素系の冷媒が温水加熱用熱２１から漏洩して気化したとしても、その冷媒ガスが底板部４１の凹入部４２の下端の左右の隙間５２から地面側に流れるため、冷媒ガスが外装ケース２５内に流入して滞留することがない。 The exterior case 25 has a bottom plate portion 41, four side plate portions 36 to 38, and a top plate portion 40. The bottom plate portion 41 has a box-shaped portion 41a in which a recessed portion 42 having an open lower end is formed. Since the hot water heating heat exchanger 21 and the heat insulating material 47 are arranged in the inlet 42, the combustible hydrocarbon system retained in the hot water heating heat exchanger 21 when the hot water heating heat exchanger 21 is stopped. Even if the refrigerant leaks from the hot water heating heat 21 and vaporizes, the refrigerant gas flows from the left and right gaps 52 at the lower end of the recessed portion 42 of the bottom plate portion 41 to the ground side. It does not flow and stay.
また、ヒートポンプ式熱源機３を分解して温水加熱用熱交換器２１を分別廃棄する場合、凹入部４２の下側から温水加熱用熱交換器２１だけを取り外すことができるため、温水加熱用熱交換器２１を分別廃棄する為の外装ケース２５からの温水加熱用熱交換器２１の取り外し作業を容易に行うことができる。 In addition, when disassembling and disposing of the heat exchanger 21 for hot water heating by disassembling the heat pump heat source unit 3, only the heat exchanger 21 for hot water heating can be removed from the lower side of the recessed portion 42, so The operation of removing the heat exchanger 21 for heating hot water from the outer case 25 for separating and discarding the exchanger 21 can be easily performed.
更に、凹入部４２に温水加熱用熱交換器２１と保温材４７を配置したので、上部から温水加熱用熱交換器２１に容易にアクセスすることができないため、上部からのいたずら等による温水加熱用熱交換器２１の損傷を確実に防止することができる。 Further, since the hot water heating heat exchanger 21 and the heat insulating material 47 are arranged in the recessed portion 42, the hot water heating heat exchanger 21 cannot be easily accessed from the upper part. Damage to the heat exchanger 21 can be reliably prevented.
底板部４１の上壁部４３に開口部４３ａを設け、温水加熱用熱交換器２１の接続配管２１ａは、前記の開口部４３ａから上方へ延びて冷媒循環用配管２３ａに接続されたので、空気よりも重い冷媒ガスが開口部４３ａから外装ケース２５内へ漏出するのを確実に防止することができる。 An opening 43a is provided in the upper wall portion 43 of the bottom plate portion 41, and the connection pipe 21a of the heat exchanger 21 for heating hot water extends upward from the opening 43a and is connected to the refrigerant circulation pipe 23a. Heavier refrigerant gas can be reliably prevented from leaking into the outer case 25 from the opening 43a.
凹入部４２の上壁部４３には、送風機１９を支持する支持板４８を固定する為の固定部材４９が設けられたので、送風機１９の取り付け位置を低くして、外装ケース２５の小型化を図ることができる。また、底板部４１に一体化された強度のある箱形部４１ａの凹入部４２の上壁部４３に固定部材４９が設けられたので、固定部材４９により送風機１９を安定した状態で支持板４８を介して固定することができると共に、送風機１９の運転時の振動を抑制することができる。 Since the fixing member 49 for fixing the support plate 48 that supports the blower 19 is provided on the upper wall portion 43 of the recessed portion 42, the mounting position of the blower 19 is lowered to reduce the size of the outer case 25. Can be planned. Further, since the fixing member 49 is provided on the upper wall portion 43 of the recessed portion 42 of the strong box-shaped portion 41 a integrated with the bottom plate portion 41, the support plate 48 in a state where the blower 19 is stabilized by the fixing member 49. The vibration during the operation of the blower 19 can be suppressed.
凹入部４２の下側に、温水加熱用熱交換器２１の下面側を覆う下カバー５０を設け、ヒートポンプ式熱源機３を据え付けた状態では、下カバー５０と底板部４１との間に隙間５２が形成されているので、温水加熱用熱交換器２１から冷媒が漏洩して気化したとしても、その冷媒ガスが上記の隙間５２から地面側へ流れるため、冷媒ガスが外装ケース２５内へ漏出して滞留するのを確実に防止することができる。 A lower cover 50 that covers the lower surface side of the hot water heating heat exchanger 21 is provided below the recessed portion 42, and a gap 52 is provided between the lower cover 50 and the bottom plate portion 41 when the heat pump heat source device 3 is installed. Therefore, even if the refrigerant leaks from the hot water heating heat exchanger 21 and vaporizes, the refrigerant gas flows from the gap 52 to the ground side, so that the refrigerant gas leaks into the outer case 25. It is possible to reliably prevent stagnation.
次に、上記のヒートポンプ式熱源機３を部分的に変更した実施例２について説明するが、実施例１と同様の構成要素には同様の参照符号を付して説明を省略し、異なる構成要素について説明する。 Next, a second embodiment in which the heat pump heat source device 3 is partially changed will be described. However, the same reference numerals are given to the same components as those in the first embodiment, and the description will be omitted. Will be described.
図５に示すように、ヒートポンプ式熱源機３Ａの下カバー５０Ａは、実施例１の下カバー５０と同サイズ同形状のものであり、その下面の左右両端寄り部分には、前後方向に所定の長さを有する左右１対の支持脚５３ａ，５３ｂが設けられている。下カバー５０Ａは、底板部４１とは別個独立に１対の支持脚５３ａ，５３ｂを介して設置台５１の据え付け面５１ａに支持されている。 As shown in FIG. 5, the lower cover 50 </ b> A of the heat pump heat source machine 3 </ b> A has the same size and shape as the lower cover 50 of the first embodiment. A pair of left and right support legs 53a and 53b having a length are provided. The lower cover 50A is supported on the installation surface 51a of the installation table 51 through a pair of support legs 53a and 53b independently of the bottom plate portion 41.
これら１対の支持脚５３ａ，５３ｂは、支持脚４９ａ，４９ｂと同サイズ同形状に形成されている。下カバー５０Ａの下面に複数の支持脚５３ａ，５３ｂを設け、下カバー５０Ａは底板部４１とは独立に支持脚５３ａ，５３ｂを介して据え付け面５１ａに支持されるので、温水加熱用熱交換器２１と保温材４７を安定させた状態で凹入部４２に配置することができる。また、温水加熱用熱交換器２１の運転時における振動を抑制することができると共に、底板部４１への振動伝達を抑制することができる。尚、下カバー５０Ａの長手方向向きに１又は複数の支持脚を設けてもよい。 The pair of support legs 53a and 53b are formed in the same size and shape as the support legs 49a and 49b. A plurality of support legs 53a and 53b are provided on the lower surface of the lower cover 50A, and the lower cover 50A is supported by the installation surface 51a via the support legs 53a and 53b independently of the bottom plate portion 41. 21 and the heat insulating material 47 can be disposed in the recessed portion 42 in a stabilized state. In addition, vibration during operation of the hot water heating heat exchanger 21 can be suppressed, and vibration transmission to the bottom plate portion 41 can be suppressed. One or a plurality of support legs may be provided in the longitudinal direction of the lower cover 50A.
尚、前記実施例を次のように部分的に変更してもよい。
（１）前記底板部４１における、箱形部４１ａと底壁部４１ｂを一体的にプレス成形する代わりに、前記箱形部４１ａと底壁部４１ｂを一体的に樹脂成形してもよい。
（２）下カバーで凹入部４２の開口部４２ａを密閉する状態に形成して底壁部４１ｂに固定し、その下カバーに凹入部４２と連通する１又は複数の開口穴を設けてもよい。
In addition, you may change the said Example partially as follows.
(1) Instead of integrally pressing the box-shaped part 41a and the bottom wall part 41b in the bottom plate part 41, the box-shaped part 41a and the bottom wall part 41b may be integrally resin-molded.
(2) The opening 42a of the recessed portion 42 is formed to be sealed with the lower cover and fixed to the bottom wall portion 41b, and one or more opening holes communicating with the recessed portion 42 may be provided in the lower cover. .
（３）その他、本発明の趣旨を逸脱しない範囲において、前記の実施例に種々の変更を付加して実施可能である。 (3) In addition, various modifications can be added to the above-described embodiment without departing from the spirit of the present invention.
３、３Ａ ヒートポンプ式熱源機
１８ 空気熱交換器（蒸発器）
１９ 送風機
２０ 圧縮機
２１ 温水加熱用熱交換器（凝縮器）
２１ａ 接続配管
２３ａ 冷媒循環用配管（内部配管）
２５ 外装ケース
３６ 側板部
３７ 前側板部
３８ 後側板部
４０ 天板部
４１ 底板部
４１ａ 箱形部
４２ 凹入部
４３ 上壁部
４３ａ 開口部
４８ 支持板
４９ 固定部材
５０、５０Ａ 下カバー
５１ａ 据え付け面
５２ 隙間
５３ａ、５３ｂ 支持脚
3, 3A Heat pump type heat source unit 18 Air heat exchanger (evaporator)
19 Blower 20 Compressor 21 Heat exchanger for heating hot water (condenser)
21a Connection pipe 23a Refrigerant circulation pipe (internal pipe)
25 exterior case 36 side plate portion 37 front side plate portion 38 rear side plate portion 40 top plate portion 41 bottom plate portion 41a box portion 42 recessed portion 43 upper wall portion 43a opening portion 48 support plate 49 fixing member 50, 50A lower cover 51a mounting surface 52 Gap 53a, 53b Support leg
Claims (5)
前記外装ケースは底板部と側板部と天板部とを有し、
前記底板部は下端開放状の凹入部が形成された箱形部を有し、
前記箱形部内の凹入部に、前記凝縮器を複数の保温材分割体で覆った状態にして配置したことを特徴とするヒートポンプ式熱源機。 In a heat pump type heat source machine comprising a compressor, an evaporator, a condenser, a blower, and an outer case that houses these,
The exterior case has a bottom plate portion, a side plate portion, and a top plate portion,
The bottom plate portion has a box-shaped portion formed with a recessed portion having an open lower end,
A heat pump type heat source device, wherein the condenser is disposed in a recessed portion in the box-shaped portion so as to be covered with a plurality of heat insulating material divided bodies .
前記凝縮器の接続配管は、前記の開口部から上方へ延びて内部配管に接続されることを特徴とする請求項１に記載のヒートポンプ式熱源機。 An opening is provided in the upper wall portion of the recessed portion,
The heat pump heat source apparatus according to claim 1, wherein a connection pipe of the condenser extends upward from the opening and is connected to an internal pipe.
前記ヒートポンプ式熱源機が据え付けられた状態では、前記下カバーと前記底板部との間の少なくとも一部に隙間が形成されたことを特徴とする請求項１〜３の何れか１項に記載のヒートポンプ式熱源機。 A lower cover that covers the lower surface side of the condenser is provided below the recessed portion,
The gap according to any one of claims 1 to 3, wherein a gap is formed in at least a part between the lower cover and the bottom plate portion in a state where the heat pump heat source device is installed. Heat pump type heat source machine.
前記下カバーは前記底板部とは独立に前記支持脚を介して据え付け面に支持されることを特徴とする請求項４に記載のヒートポンプ式熱源機。 One or more support legs are provided on the lower surface of the lower cover;
5. The heat pump heat source apparatus according to claim 4, wherein the lower cover is supported on the installation surface via the support legs independently of the bottom plate portion.
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| CN106996661B (en) * | 2017-03-27 | 2019-09-13 | 美的集团股份有限公司 | The control method of condenser assembly, wall-hanging air conditioner all-in-one machine and condenser assembly |
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