JP7345137B2 - Heat exchanger unit and heat pump unit - Google Patents
Heat exchanger unit and heat pump unit Download PDFInfo
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Description
本発明は、併設した第１熱交換器及び第２熱交換器を流体連通路で連通させた熱交換器ユニット及び熱交換器ユニットを備えたヒートポンプユニットに関するものである。 The present invention relates to a heat exchanger unit in which a first heat exchanger and a second heat exchanger installed side by side are connected through a fluid communication path, and a heat pump unit equipped with the heat exchanger unit.
特許文献１には、併設した第１熱交換器及び第２熱交換器を流体連通路で連通させた熱交換器ユニット及び熱交換器ユニットを備えたヒートポンプユニットが開示されている。 Patent Document 1 discloses a heat exchanger unit in which a first heat exchanger and a second heat exchanger installed side by side are connected through a fluid communication path, and a heat pump unit including the heat exchanger unit.
しかしながら、第２流体が流れる外管での圧力損失を更に少なくし、更に断熱性能に優れた熱交換器ユニットが望まれる。 However, there is a need for a heat exchanger unit that further reduces pressure loss in the outer tube through which the second fluid flows and also has excellent heat insulation performance.
本発明は、外管での圧力損失が少なく、断熱性能に優れ、熱効率が良い熱交換器ユニットを提供することを目的とする。 An object of the present invention is to provide a heat exchanger unit with low pressure loss in the outer tube, excellent heat insulation performance, and high thermal efficiency.
前記従来の課題を解決するために、本発明の熱交換器ユニットは、第１流体が流れる第１内管、及び第２流体が流れる第１外管を有する第１熱交換器と、前記第１流体が流れる第２内管、及び前記第２流体が流れる第２外管を有する第２熱交換器と、前記第１内管と前記第２内管とを連通させる第１流体連通部と、前記第１外管と前記第２外管とを連通させる第２流体連通部と、を備え、前記第１外管は、それぞれが独立した流体経路を形成する、少なくとも２本の第１配管で構成され、少なくとも２本の前記第１配管は、それぞれの前記第１配管が隣接した状態で前記第１内管の外周に螺旋状に巻かれ、それぞれの前記第１配管には、前記第２流体が分岐して流れ、前記第２外管は、それぞれが独立した流体経路を形成する、少なくとも２本の第２配管で構成され、少なくとも２本の前記第２配管は、それぞれの前記第２配管が隣接した状態で前記第２内管の外周に螺旋状に巻かれ、それぞれの前記第２配管には、前記第２流体が分岐して流れ、前記第１熱交換器、前記第２熱交換器、前記第１流体連通部、及び前記第２流体連通部を、一つの収納容器に収納した熱交換器ユニットであって、前記第１熱交換器と前記第２熱交換器とを、長手方向が同じで同一高さに併設し、前記第１外管には、前記第２流体の流入側となる第１流入外管と、前記第２流体の流出側となる第１流出外管とを形成し、前記第２外管には、前記第２流体の流入側となる第２流入外管と、前記第２流体の流出側となる第２流出外管とを形成し、前記第１流出外管と前記第２流入外管とが前記第２流体連通部で接続され、前記第１流出外管は、前記第２流体連通部と接続される第１流出外管接続部が、前記第１内管の前記外周に巻かれた第１流出外管螺旋状端部よりも高い位置となるように傾斜して配置され、前記第２流入外管は、前記第２流体連通部と接続される第２流入外管接続部が、前記第２内管の前記外周に巻かれた第２流入外管螺旋状端部よりも高い位置となるように傾斜して配置され、前記第１流入外管は、第２流体戻り配管と接続される第１流入外管接続部が、前記第１内管の前記外周に巻かれた第１流入外管螺旋状端部よりも高い位置となるように傾斜して配置され、前記第２流出外管は、第２流体往き配管と接続される第２流出外管接続部が、前記第２内管の前記外周に巻かれた第２流出外管螺旋状端部よりも高い位置となるように傾斜して配置されたことを特徴とするものである。 In order to solve the conventional problems, the heat exchanger unit of the present invention includes a first heat exchanger having a first inner pipe through which a first fluid flows and a first outer pipe through which a second fluid flows; a second heat exchanger having a second inner pipe through which one fluid flows and a second outer pipe through which the second fluid flows; a first fluid communication portion that communicates the first inner pipe and the second inner pipe; , a second fluid communication portion that connects the first outer tube and the second outer tube, the first outer tube includes at least two first pipes each forming an independent fluid path. The at least two first pipes are spirally wound around the first inner pipe with the first pipes adjacent to each other, and each of the first pipes has the first pipe. Two fluids flow in a branched manner, and the second outer pipe is configured with at least two second pipes each forming an independent fluid path, and the at least two second pipes are connected to each of the first and second pipes. Two pipes are wound spirally around the outer periphery of the second inner pipe in an adjacent state, and the second fluid branches and flows through each of the second pipes, and the first heat exchanger and the second A heat exchanger unit in which a heat exchanger, the first fluid communication section, and the second fluid communication section are housed in one storage container , the first heat exchanger and the second heat exchanger being , the first outer tube has a first inflow outer tube that is the inflow side of the second fluid, and a first outflow outer tube that is the outflow side of the second fluid. the second outer tube has a second inflow outer tube that is an inflow side of the second fluid, and a second outflow outer tube that is an outflow side of the second fluid; The first outflow outer pipe and the second inflow outer pipe are connected at the second fluid communication part, and the first outflow outer pipe has a first outflow outer pipe connection part connected to the second fluid communication part. , the second outer inflow tube is arranged to be inclined so as to be at a higher position than the spiral end of the first outer outflow tube wound around the outer periphery of the first inner tube, and the second outer inflow tube is arranged at an angle higher than the spiral end of the first outer inflow tube wound around the outer periphery of the first inner tube; a second inflow outer pipe connecting portion connected to the second inner pipe is arranged to be inclined so as to be at a higher position than a second inflow outer pipe spiral end wound around the outer periphery of the second inner pipe; The first inflow outer pipe has a first inflow outer pipe connecting portion connected to the second fluid return pipe at a higher position than a first inflow outer pipe helical end wound around the outer periphery of the first inner pipe. The second outflow outer pipe is arranged such that the second outflow outer pipe connecting portion connected to the second fluid outflow pipe is connected to the second outflow outer pipe wound around the outer periphery of the second inner pipe. It is characterized by being arranged at an angle so as to be at a higher position than the helical end of the outer tube .
本発明によれば、第１外管及び第２外管での圧力損失が少なく、断熱性能に優れ、熱効率が良い熱交換器ユニットを提供できる。 According to the present invention, it is possible to provide a heat exchanger unit with low pressure loss in the first outer tube and the second outer tube, excellent heat insulation performance, and high thermal efficiency.
第１の発明は、第１外管が、それぞれが独立した流体経路を形成する、少なくとも２本の第１配管で構成され、少なくとも２本の第１配管は、それぞれの第１配管が隣接した状態で第１内管の外周に螺旋状に巻かれ、それぞれの第１配管には、第２流体が分岐して流れ、第２外管が、それぞれが独立した流体経路を形成する、少なくとも２本の第２配管で構成され、少なくとも２本の第２配管は、それぞれの第２配管が隣接した状態で第２内管の外周に螺旋状に巻かれ、それぞれの第２配管には、第２流体が分岐して流れる。従って、第１外管及び第２外管での圧力損失が少ない。
また、第１の発明は、第１熱交換器、第２熱交換器、第１流体連通部、及び第２流体連通部を、一つの収納容器に収納しているため断熱性能に優れ、熱効率が良い。
また、第１の発明は、第１熱交換器と前記第２熱交換器とを、長手方向が同じで同一高さに併設し、第１外管には、第２流体の流入側となる第１流入外管と、第２流体の流出側となる第１流出外管とを形成し、第２外管には、第２流体の流入側となる第２流入外管と、第２流体の流出側となる第２流出外管とを形成し、第１流出外管と第２流入外管とが第２流体連通部で接続され、第１流出外管は、第２流体連通部と接続される第１流出外管接続部が、第１内管の外周に巻かれた第１流出外管螺旋状端部よりも高い位置となるように傾斜して配置され、第２流入外管は、第２流体連通部と接続される第２流入外管接続部が、第２内管の外周に巻かれた第２流入外管螺旋状端部よりも高い位置となるように傾斜して配置されたことを特徴とするものである。
これにより、螺旋状に巻かれた第１外管から第１流出外管接続部を離間させ、螺旋状に巻かれた第２外管から第２流入外管接続部を離間させることができるので、第１流出外管接続部及び第２流入外管接続部の第２流体連通部への接続が容易となり、接続にロウ付けを行う場合であっても第１外管や第２外管に熱影響を与えない。
また、第１の発明は、第１流入外管は、第２流体戻り配管と接続される第１流入外管接続部が、第１内管の外周に巻かれた第１流入外管螺旋状端部よりも高い位置となるように傾斜して配置され、第２流出外管は、第２流体往き配管と接続される第２流出外管接続部が、第２内管の外周に巻かれた第２流出外管螺旋状端部よりも高い位置となるように傾斜して配置されたことを特徴とするものである。
これにより、螺旋状に巻かれた第１外管から第１流入外管接続部を離間させ、螺旋状に巻かれた第２外管から第２流出外管接続部を離間させることができるので、第１流入外管接続部の第２流体戻り配管への接続、及び第２流出外管接続部の第２流体往き配管への接続が容易となり、接続にロウ付けを行う場合であっても第１外管や第２外管に熱影響を与えない。
In the first invention, the first outer pipe is composed of at least two first pipes each forming an independent fluid path, and the at least two first pipes are arranged so that the first pipes are adjacent to each other. At least two pipes are wound spirally around the outer periphery of the first inner pipe in the state, the second fluid branches into each first pipe, and the second outer pipe forms an independent fluid path. The at least two second pipes are spirally wound around the outer circumference of the second inner pipe with the respective second pipes adjacent to each other, and each second pipe has a second pipe. The two fluids diverge and flow. Therefore, pressure loss in the first outer tube and the second outer tube is small.
Further, the first invention has excellent heat insulation performance and thermal efficiency because the first heat exchanger, the second heat exchanger, the first fluid communication section, and the second fluid communication section are housed in one storage container. is good.
Further, in the first invention , the first heat exchanger and the second heat exchanger are installed side by side in the same longitudinal direction and at the same height, and the first outer tube is provided with an inflow side of the second fluid. A first inflow outer pipe and a first outflow outer pipe which is an outflow side of the second fluid are formed, and the second outer pipe has a second inflow outer pipe which is an inflow side of the second fluid, and a second fluid outflow side. The first outflow outer pipe and the second inflow outer pipe are connected by a second fluid communication part, and the first outflow outer pipe is connected to the second fluid communication part. The first outflow outer pipe connecting portion to be connected is arranged to be inclined so as to be at a higher position than the first outflow outer pipe spiral end wound around the outer periphery of the first inner pipe, and the second inflow outer pipe is connected to the first outflow outer pipe. is inclined so that the second outer inflow pipe connection part connected to the second fluid communication part is at a higher position than the helical end of the second outer inflow pipe wound around the outer periphery of the second inner pipe. It is characterized by being placed.
As a result, the first outflow outer tube connection section can be separated from the spirally wound first outer tube, and the second inflow outer tube connection section can be separated from the spirally wound second outer tube. , it becomes easy to connect the first outflow outer pipe connection part and the second inflow outer pipe connection part to the second fluid communication part, and even when the connection is brazed, it is easy to connect the first outer pipe and the second outer pipe to the second fluid communication part. No heat effect.
Further, in the first invention , the first inflow outer pipe has a first inflow outer pipe connecting portion connected to the second fluid return pipe in a first inflow outer pipe spiral shape wound around the outer periphery of the first inner pipe. The second outflow outer pipe is arranged to be inclined so as to be at a higher position than the end, and the second outflow outer pipe connection part connected to the second fluid outflow pipe is wound around the outer periphery of the second inner pipe. The second outflow outer tube spiral end portion is arranged at an angle so as to be at a higher position than the second outflow outer tube spiral end portion.
As a result, the first inflow outer pipe connection part can be separated from the spirally wound first outer pipe, and the second outflow outer pipe connection part can be separated from the spirally wound second outer pipe. , the connection of the first inflow outer pipe connection part to the second fluid return pipe and the connection of the second outflow outer pipe connection part to the second fluid outflow pipe are facilitated, even when the connections are brazed. There is no heat effect on the first outer tube or the second outer tube.
第２の発明は、特に第１の発明において、少なくとも２本の第１配管のそれぞれの第１流出外管接続部の高さを異ならせ、少なくとも２本の第２配管のそれぞれの第２流入外管接続部の高さを異ならせたことを特徴とするものである。 In a second invention, in particular, in the first invention, the heights of the first outflow outer pipe connection portions of each of the at least two first pipes are different, and the height of the first outflow outer pipe connection part of each of the at least two second pipes is different. This is characterized in that the heights of the outer tube connection portions are different.
これにより、それぞれの第１流出外管接続部、及びそれぞれの第２流入外管接続部の第２流体連通部への接続が容易となる。 This facilitates the connection of each first outflow outer pipe connection part and each second inflow outer pipe connection part to the second fluid communication part.
第３の発明は、特に第１の発明において、少なくとも２本の第１配管のそれぞれの第１流入外管接続部の高さを異ならせ、少なくとも２本の第２配管のそれぞれの第２流出外管接続部の高さを異ならせたことを特徴とするものである。 In a third invention, in particular in the first invention, the heights of the first inflow outer pipe connection portions of each of the at least two first pipes are different, and the heights of the first inflow and outer pipe connections of each of the at least two second pipes are different. This is characterized in that the heights of the outer tube connection portions are different.
これにより、それぞれの第１流入外管接続部の第２流体戻り配管への接続、及びそれぞれの第２流出外管接続部の第２流体往き配管への接続が容易となる。 This facilitates the connection of each first inflow outer pipe connection part to the second fluid return pipe, and the connection of each second outflow outer pipe connection part to the second fluid outflow pipe.
第４の発明は、特に第１から第３のいずれかの発明において、第１流入外管、第１流出外管、第２流入外管、及び第２流出外管を、平面視で略Ｌ字状の形状としたことを特徴とするものである。 A fourth invention is particularly directed to any one of the first to third inventions, wherein the first inflow outer pipe, the first outflow outer pipe, the second inflow outer pipe, and the second outflow outer pipe are approximately L in plan view. It is characterized by having a letter-like shape.
これにより、第１流入外管、第１流出外管、第２流入外管、及び第２流出外管に曲がりを形成することで、第１流入外管接続部、第１流出外管接続部、第２流入外管接続部、及び第２流出外管接続部を、第１内管及び第２内管と同一の方向で、第１内管及び第２内管の端部の上方に配置できる。 As a result, by forming bends in the first inflow outer pipe, the first outflow outer pipe, the second inflow outer pipe, and the second outflow outer pipe, the first inflow outer pipe connection part and the first outflow outer pipe connection part are formed. , the second inflow outer tube connection, and the second outflow outer tube connection are arranged above the ends of the first inner tube and the second inner tube in the same direction as the first inner tube and the second inner tube. can.
第５の発明は、特に第１から第４のいずれかの発明において、収納容器の上面を凹状としたことを特徴とするものである。 A fifth invention is particularly characterized in that, in any one of the first to fourth inventions, the upper surface of the storage container is concave.
これにより、収納容器内の空間を狭くでき、圧縮機、減圧装置、蒸発器、及び送風装置とともに収納容器を、外装体内に備えた場合に、収納容器を送風装置よりも下方位置に配置しやすい。 As a result, the space inside the storage container can be narrowed, and when the storage container is included in the exterior body together with the compressor, pressure reducing device, evaporator, and blower device, it is easier to place the storage container at a lower position than the blower device. .
第６の発明は、特に第１から第５のいずれかの発明において、収納容器の下面に貫通穴を設けたことを特徴とするものである。 A sixth invention is particularly characterized in that, in any one of the first to fifth inventions, a through hole is provided in the lower surface of the storage container.
これにより、収納容器内の結露水を排出しやすい。 This makes it easy to drain the condensed water inside the storage container.
第７の発明は、特に第１から第６のいずれかの熱交換器ユニットを備えたヒートポンプユニットにおいて、第２流体として冷媒を用い、冷媒を圧縮する圧縮機と、第１熱交換器及び第２熱交換器で放熱した冷媒を減圧する減圧装置と、減圧装置で減圧した冷媒を蒸発させる蒸発器と、圧縮機で圧縮された冷媒を第１外管に導く冷媒戻り配管と、第２外管から流出する冷媒を減圧装置に導く冷媒往き配管と、第２内管に第１流体を導く第１流体戻り配管と、第１内管から流出する第１流体を導出する第１流体往き配管とを備え、第１流体戻り配管の一部と冷媒往き配管の一部とをロウ付けにて固定し、第１流体往き配管の一部と冷媒戻り配管の一部とをロウ付けにて固定したことを特徴とするものである。 A seventh invention is particularly a heat pump unit including any one of the first to sixth heat exchanger units, which includes a compressor that uses a refrigerant as a second fluid and compresses the refrigerant; 2. A pressure reducing device that reduces the pressure of the refrigerant heat released by the heat exchanger, an evaporator that evaporates the refrigerant that has been reduced in pressure by the pressure reducing device, a refrigerant return pipe that leads the refrigerant compressed by the compressor to the first outer pipe, and a second outer pipe. A refrigerant outgoing pipe that guides the refrigerant flowing out of the pipe to the pressure reducing device, a first fluid return pipe that leads the first fluid to the second inner pipe, and a first fluid outgoing pipe that leads out the first fluid out of the first inner pipe. A part of the first fluid return pipe and a part of the refrigerant return pipe are fixed by brazing, and a part of the first fluid return pipe and a part of the refrigerant return pipe are fixed by brazing. It is characterized by the fact that
これにより、圧縮機で発生し冷媒往き配管及び冷媒戻り配管に伝わる振動を、ロウ付け固定箇所で低減できるため、第１外管と冷媒戻り配管との接合部や第２外管と冷媒往き配管との接合部が振動によって損傷を受けることを防止できる。 As a result, the vibration generated in the compressor and transmitted to the refrigerant outgoing pipe and the refrigerant return pipe can be reduced at the brazed fixing points, and the joint between the first outer pipe and the refrigerant return pipe and the second outer pipe and the refrigerant outgoing pipe. It is possible to prevent damage to the joints between the parts and the parts due to vibrations.
第８の発明は、特に第７の発明において、蒸発器に送風する送風装置を有し、収納容器、圧縮機、減圧装置、蒸発器、及び送風装置を、外装体内に備え、蒸発器と収納容器を底板に載置し、収納容器を送風装置よりも下方位置に配置し、収納容器を送風装置の下流に配置したことを特徴とするものである。 An eighth invention, particularly in the seventh invention, has an air blowing device for blowing air to the evaporator, and includes a storage container, a compressor, a pressure reducing device, an evaporator, and an air blowing device inside the exterior body, and the evaporator and the storage The present invention is characterized in that the container is placed on the bottom plate, the storage container is placed below the blower, and the storage container is placed downstream of the blower.
これにより、第１熱交換器、第２熱交換器、第１流体連通部、及び第２流体連通部を収納することで重くなる収納容器を、安定して固定できる。 Thereby, the storage container, which becomes heavy due to housing the first heat exchanger, the second heat exchanger, the first fluid communication section, and the second fluid communication section, can be stably fixed.
以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。 Embodiments of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to this embodiment.
（実施の形態）
図１は、本発明の実施の形態における熱交換器ユニットの外管斜視図及び側面図である。
本実施の形態における熱交換器ユニットは、第１熱交換器１０と、第２熱交換器２０と、第１流体連通部３０と、第２流体連通部４０とを備えている。
第１熱交換器１０と第２熱交換器２０とは、長手方向が同じで同一高さに併設している。
(Embodiment)
FIG. 1 is an outer tube perspective view and a side view of a heat exchanger unit in an embodiment of the present invention.
The heat exchanger unit in this embodiment includes a first heat exchanger 10, a second heat exchanger 20, a first fluid communication section 30, and a second fluid communication section 40.
The first heat exchanger 10 and the second heat exchanger 20 have the same longitudinal direction and are installed at the same height.
図２は、同熱交換器ユニットの要部外観斜視図及び要部構成図である。図２（ａ）は、同熱交換器ユニットの連通側端部を示す要部外管斜視図、図２（ｂ）は、同熱交換器ユニットの連通側端部を示す要部構成図、図２（ｃ）は、同熱交換器ユニットの流体出入口側端部を示す要部外管斜視図、図２（ｄ）は、同熱交換器ユニットの流体出入口側端部を示す要部構成図である。 FIG. 2 is an external perspective view and a configuration diagram of the main parts of the heat exchanger unit. FIG. 2(a) is a perspective view of the main part outer tube showing the communication side end of the heat exchanger unit, FIG. 2(b) is a main part configuration diagram showing the communication side end of the heat exchanger unit, FIG. 2(c) is a perspective view of the main part of the outer tube showing the fluid inlet/outlet side end of the heat exchanger unit, and FIG. 2(d) is the main part configuration showing the fluid inlet/outlet end of the heat exchanger unit. It is a diagram.
第１熱交換器１０は、第１流体が流れる第１内管１１、及び第２流体が流れる第１外管１２を有する。第２熱交換器２０は、第１流体が流れる第２内管２１、及び第２流体が流れる第２外管２２を有する。第１内管１１を流れる第１流体は、第１外管１２を流れる第２流体から吸熱する。第２内管２１を流れる第１流体は、第２外管２２を流れる第２流体から吸熱する。
第１流体連通部３０は、第１内管１１と第２内管２１とを連通させる。第２流体連通部４０は、第１外管１２と第２外管２２とを連通させる。
第１内管１１には挿入体１１ｚが挿入されている。第２内管２１には挿入体２１ｚが挿入されている。挿入体１１ｚ、２１ｚには螺旋状凸部が形成されている。螺旋状凸部は、第１内管１１及び第２内管２１の内面に当接する。螺旋状凸部によって、第１内管１１及び第２内管２１の内面には、螺旋状の流路が形成される。第１流体はこの螺旋状の流路を流れる。
The first heat exchanger 10 has a first inner tube 11 through which the first fluid flows, and a first outer tube 12 through which the second fluid flows. The second heat exchanger 20 has a second inner tube 21 through which the first fluid flows, and a second outer tube 22 through which the second fluid flows. The first fluid flowing through the first inner tube 11 absorbs heat from the second fluid flowing through the first outer tube 12 . The first fluid flowing through the second inner tube 21 absorbs heat from the second fluid flowing through the second outer tube 22 .
The first fluid communication section 30 allows the first inner tube 11 and the second inner tube 21 to communicate with each other. The second fluid communication portion 40 allows the first outer tube 12 and the second outer tube 22 to communicate with each other.
An insert body 11z is inserted into the first inner tube 11. An insert body 21z is inserted into the second inner tube 21. A spiral convex portion is formed on the inserts 11z and 21z. The spiral convex portion contacts the inner surfaces of the first inner tube 11 and the second inner tube 21. A spiral flow path is formed on the inner surface of the first inner tube 11 and the second inner tube 21 by the spiral convex portion. The first fluid flows through this spiral channel.
第１外管１２は、少なくとも２本の第１配管１２ａ、１２ｂで構成されている。少なくとも２本の第１配管１２ａ、１２ｂは、それぞれが独立した流体経路を形成する。
少なくとも２本の第１配管１２ａ、１２ｂは、それぞれの第１配管１２ａ、１２ｂが隣接した状態で第１内管１１の外周に螺旋状に巻かれている。すなわち、第１配管１２ａと第１配管１２ｂとは、隣接した状態で第１内管１１の外周に螺旋状に巻かれている。
それぞれの第１配管１２ａ、１２ｂには、第２流体が分岐して流れる。このように、第１外管１２を、複数の第１配管１２ａ、１２ｂで構成し、それぞれの第１配管１２ａ、１２ｂに第２流体を分岐して流すことで、第１外管１２での圧力損失が少ない。
The first outer tube 12 is composed of at least two first pipes 12a and 12b. At least two first pipes 12a, 12b each form an independent fluid path.
At least two first pipes 12a, 12b are spirally wound around the outer periphery of the first inner pipe 11, with the first pipes 12a, 12b being adjacent to each other. That is, the first pipe 12a and the first pipe 12b are spirally wound around the outer periphery of the first inner pipe 11 in an adjacent state.
The second fluid branches and flows through each of the first pipes 12a and 12b. In this way, the first outer pipe 12 is configured with a plurality of first pipes 12a, 12b, and by branching and flowing the second fluid to each of the first pipes 12a, 12b, the first outer pipe 12 can be Low pressure loss.
第２外管２２は、少なくとも２本の第２配管２２ａ、２２ｂで構成されている。少なくとも２本の第２配管２２ａ、２２ｂは、それぞれが独立した流体経路を形成する。
少なくとも２本の第２配管２２ａ、２２ｂは、それぞれの第２配管２２ａ、２２ｂが隣接した状態で第２内管２１の外周に螺旋状に巻かれている。すなわち、第２配管２２ａと第２配管２２ｂとは、隣接した状態で第２内管２１の外周に螺旋状に巻かれている。
それぞれの第２配管２２ａ、２２ｂには、第２流体が分岐して流れる。このように、第２外管２２を、複数の第２配管２２ａ、２２ｂで構成し、それぞれの第２配管２２ａ、２２ｂに第２流体を分岐して流すことで、第２外管２２での圧力損失が少ない。
The second outer tube 22 includes at least two second pipes 22a and 22b. At least two second pipes 22a, 22b each form an independent fluid path.
At least two second pipes 22a, 22b are spirally wound around the outer periphery of the second inner pipe 21, with the second pipes 22a, 22b being adjacent to each other. That is, the second pipe 22a and the second pipe 22b are spirally wound around the outer periphery of the second inner pipe 21 in an adjacent state.
The second fluid branches and flows through each of the second pipes 22a and 22b. In this way, the second outer pipe 22 is configured with a plurality of second pipes 22a, 22b, and by branching and flowing the second fluid to each of the second pipes 22a, 22b, the second outer pipe 22 can be Low pressure loss.
第１外管１２には、第２流体の流入側となる第１流入外管１２ｘと、第２流体の流出側となる第１流出外管１２ｙとを形成している。第２外管２２には、第２流体の流入側となる第２流入外管２２ｘと、第２流体の流出側となる第２流出外管２２ｙとを形成している。
第１流出外管１２ｙと第２流入外管２２ｘとは、第２流体連通部４０で接続されている。
The first outer tube 12 is formed with a first inflow outer tube 12x that serves as an inflow side for the second fluid, and a first outflow outer tube 12y that serves as an outlet side for the second fluid. The second outer tube 22 is formed with a second inflow outer tube 22x that serves as an inflow side of the second fluid, and a second outflow outer tube 22y that serves as an outlet side of the second fluid.
The first outflow outer tube 12y and the second inflow outer tube 22x are connected through a second fluid communication section 40.
図２（ａ）及び図２（ｂ）に示すように、第１流出外管１２ｙは、第２流体連通部４０と接続される第１流出外管接続部１２ｙＨが、第１内管１１の外周に巻かれた第１流出外管螺旋状端部１２ｙＬよりも高い位置となるように傾斜して配置されている。従って、螺旋状に巻かれた第１外管１２から第１流出外管接続部１２ｙＨを離間させることができ、第１流出外管接続部１２ｙＨの第２流体連通部４０への接続が容易となり、接続にロウ付けを行う場合であっても第１外管１２に熱影響を与えない。
また、図２（ａ）及び図２（ｂ）に示すように、第２流入外管２２ｘは、第２流体連通部４０と接続される第２流入外管接続部２２ｘＨが、第２内管２１の外周に巻かれた第２流入外管螺旋状端部２２ｘＬよりも高い位置となるように傾斜して配置されている。従って、螺旋状に巻かれた第２外管２２から第２流入外管接続部２２ｘＨを離間させることができ、第２流入外管接続部２２ｘＨの第２流体連通部４０への接続が容易となり、接続にロウ付けを行う場合であっても第２外管２２に熱影響を与えない。
As shown in FIGS. 2(a) and 2(b), the first outflow outer pipe 12y has a first outflow outer pipe connection part 12yH connected to the second fluid communication part 40, which is connected to the first inner pipe 11. The first outflow outer tube spiral end 12yL is arranged at an angle so as to be higher than the first outflow outer tube spiral end 12yL wound around the outer periphery. Therefore, the first outflow outer tube connection section 12yH can be separated from the spirally wound first outer tube 12, and the connection of the first outflow outer tube connection section 12yH to the second fluid communication section 40 becomes easy. Even when the connection is brazed, the first outer tube 12 is not affected by heat.
Further, as shown in FIGS. 2(a) and 2(b), the second outer inflow pipe 22x has a second outer inflow pipe connecting portion 22xH connected to the second fluid communication portion 40, and a second inner inflow pipe 22x. The second inflow outer tube spiral end portion 22xL wound around the outer periphery of the second inflow outer tube 22xL is inclined and arranged at a higher position. Therefore, the second inflow outer tube connection section 22xH can be separated from the spirally wound second outer tube 22, and the connection of the second inflow outer tube connection section 22xH to the second fluid communication section 40 becomes easy. Even when the connection is brazed, the second outer tube 22 is not affected by heat.
図２（ｃ）及び図２（ｄ）に示すように、第１流入外管１２ｘは、第２流体戻り配管５１と接続される第１流入外管接続部１２ｘＨが、第１内管１１の外周に巻かれた第１流入外管螺旋状端部１２ｘＬよりも高い位置となるように傾斜して配置されている。従って、螺旋状に巻かれた第１外管１２から第１流入外管接続部１２ｘＨを離間させることができ、第１流入外管接続部１２ｘＨの第２流体戻り配管５１への接続が容易となり、接続にロウ付けを行う場合であっても第１外管１２に熱影響を与えない。
また、図２（ｃ）及び図２（ｄ）に示すように、第２流出外管２２ｙは、第２流体往き配管５２と接続される第２流出外管接続部２２ｙＨが、第２内管２１の外周に巻かれた第２流出外管螺旋状端部２２ｙＬよりも高い位置となるように傾斜して配置されている。従って、螺旋状に巻かれた第２外管２２から第２流出外管接続部２２ｙＨを離間させることができ、第２流出外管接続部２２ｙＨの第２流体往き配管５２への接続が容易となり、接続にロウ付けを行う場合であっても第２外管２２に熱影響を与えない。
As shown in FIGS. 2(c) and 2(d), the first inflow outer pipe 12x has a first inflow outer pipe connecting portion 12xH connected to the second fluid return pipe 51, which is connected to the first inner pipe 11. The first inflow outer tube spiral end portion 12xL is disposed at an inclined position so as to be higher than the first inflow outer tube spiral end portion 12xL wound around the outer periphery. Therefore, the first inflow outer pipe connection part 12xH can be separated from the first outer pipe 12 wound spirally, and the connection of the first inflow outer pipe connection part 12xH to the second fluid return pipe 51 becomes easy. Even when the connection is brazed, the first outer tube 12 is not affected by heat.
Further, as shown in FIGS. 2(c) and 2(d), the second outflow outer pipe 22y has a second outflow outer pipe connection portion 22yH connected to the second fluid outflow pipe 52, and a second inner outflow pipe 22y that is connected to the second outflow outer pipe 52. The second outflow outer tube spiral end 22yL wound around the outer periphery of the second outflow outer tube 22yL is inclined so as to be at a higher position. Therefore, the second outflow outer tube connection section 22yH can be separated from the spirally wound second outer tube 22, and the connection of the second outflow outer tube connection section 22yH to the second fluid outflow pipe 52 becomes easy. Even when the connection is brazed, the second outer tube 22 is not affected by heat.
図２（ａ）に示すように、少なくとも２本の第１配管１２ａ、１２ｂは、それぞれの第１流出外管接続部１２ｙＨの高さを異ならせている。また、少なくとも２本の第２配管２２ａ、２２ｂは、それぞれの第２流入外管接続部２２ｘＨの高さを異ならせている。
このように、複数の第１配管１２ａ、１２ｂの第１流出外管接続部１２ｙＨの高さを異ならせることで、それぞれの第１流出外管接続部１２ｙＨの第２流体連通部４０への接続が容易となる。また、複数の第２配管２２ａ、２２ｂの第２流入外管接続部２２ｘＨの高さを異ならせることで、それぞれの第２流入外管接続部２２ｘＨの第２流体連通部４０への接続が容易となる。
As shown in FIG. 2(a), at least two first pipes 12a and 12b have different first outflow outer pipe connection portions 12yH at different heights. Moreover, the heights of the second inflow outer pipe connecting portions 22xH of the at least two second pipes 22a and 22b are made different.
In this way, by making the heights of the first outflow outer pipe connection parts 12yH of the plurality of first pipes 12a and 12b different, the connection of each of the first outflow outer pipe connection parts 12yH to the second fluid communication part 40 can be made. becomes easier. Furthermore, by making the heights of the second inflow outer pipe connection parts 22xH of the plurality of second pipes 22a and 22b different, it is easy to connect each of the second inflow outer pipe connection parts 22xH to the second fluid communication part 40. becomes.
図２（ｃ）に示すように、少なくとも２本の第１配管１２ａ、１２ｂは、それぞれの第１流入外管接続部１２ｘＨの高さを異ならせている。また、少なくとも２本の第２配管２２ａ、２２ｂは、それぞれの第２流出外管接続部２２ｙＨの高さを異ならせている。
このように、複数の第１配管１２ａ、１２ｂの第１流入外管接続部１２ｘＨの高さを異ならせることで、それぞれの第１流入外管接続部１２ｘＨの第２流体戻り配管５１への接続が容易となる。また、複数の第２配管２２ａ、２２ｂの第２流出外管接続部２２ｙＨの高さを異ならせることで、それぞれの第２流出外管接続部２２ｙＨの第２流体往き配管５２への接続が容易となる。
As shown in FIG. 2(c), at least two first pipes 12a and 12b have different first inflow outer pipe connection portions 12xH at different heights. Moreover, the heights of the second outflow outer pipe connecting portions 22yH of the at least two second pipes 22a and 22b are made different.
In this way, by making the heights of the first inflow outer pipe connection parts 12xH of the plurality of first pipes 12a and 12b different, the connection of each of the first inflow outer pipe connection parts 12xH to the second fluid return pipe 51 can be made. becomes easier. Furthermore, by making the heights of the second outflow outer pipe connection parts 22yH of the plurality of second pipes 22a and 22b different, it is easy to connect each of the second outflow outer pipe connection parts 22yH to the second fluid outflow pipe 52. becomes.
第１流入外管１２ｘ、第１流出外管１２ｙ、第２流入外管２２ｘ、及び第２流出外管２２ｙは、平面視で略Ｌ字状の形状としている。第１流入外管１２ｘ、第１流出外管１２ｙ、第２流入外管２２ｘ、及び第２流出外管２２ｙに曲がりを形成することで、第１流入外管接続部１２ｘＨ、第１流出外管接続部１２ｙＨ、第２流入外管接続部２２ｘＨ、及び第２流出外管接続部２２ｙＨは、第１内管１１及び第２内管２１と同一の方向で、第１内管１１及び第２内管２１の端部の上方に配置できる。 The first inflow outer tube 12x, the first outflow outer tube 12y, the second inflow outer tube 22x, and the second outflow outer tube 22y are approximately L-shaped in plan view. By forming bends in the first inflow outer pipe 12x, the first outflow outer pipe 12y, the second inflow outer pipe 22x, and the second outflow outer pipe 22y, the first inflow outer pipe connection part 12xH, the first outflow outer pipe The connection part 12yH, the second inflow outer pipe connection part 22xH, and the second outflow outer pipe connection part 22yH are connected to the first inner pipe 11 and the second inner pipe 21 in the same direction as the first inner pipe 11 and the second inner pipe 21. It can be placed above the end of the tube 21.
図３は、同熱交換器ユニットを備えたヒートポンプユニットの内観を示す斜視図である。
同ヒートポンプユニットでは、第１流体として水を用い、第２流体として冷媒を用いる。冷媒としては、炭酸ガスを用いることが好ましく、炭酸ガスを用いることで高温水を生成することができる。
同ヒートポンプユニットは、冷媒を圧縮する圧縮機１と、第１熱交換器１０及び第２熱交換器２０で放熱した冷媒を減圧する減圧装置２（図５参照）と、減圧装置２で減圧した冷媒を蒸発させる蒸発器３と、蒸発器３に送風する送風装置４とを備えている。
圧縮機１で圧縮された冷媒は、冷媒戻り配管（第２流体戻り配管）５１によって第１外管１２に導かれる。第２外管２２から流出する冷媒は、冷媒往き配管（第２流体往き配管）５２によって減圧装置２に導かれる。
水は、第１流体戻り配管６１によって第２内管２１に導かれ、第１内管１１から流出する温水は、第１流体往き配管６２から導出する。
FIG. 3 is a perspective view showing the interior of the heat pump unit including the heat exchanger unit.
The heat pump unit uses water as the first fluid and uses a refrigerant as the second fluid. As the refrigerant, it is preferable to use carbon dioxide gas, and high temperature water can be generated by using carbon dioxide gas.
The heat pump unit includes a compressor 1 that compresses the refrigerant, a pressure reduction device 2 (see Fig. 5) that reduces the pressure of the refrigerant that has radiated heat in the first heat exchanger 10 and the second heat exchanger 20, and the pressure reduction device 2 that reduces the pressure of the refrigerant. It includes an evaporator 3 that evaporates refrigerant and a blower device 4 that blows air to the evaporator 3.
The refrigerant compressed by the compressor 1 is guided to the first outer pipe 12 by a refrigerant return pipe (second fluid return pipe) 51. The refrigerant flowing out from the second outer tube 22 is guided to the pressure reducing device 2 by a refrigerant outgoing pipe (second fluid outgoing pipe) 52.
Water is guided to the second inner pipe 21 by the first fluid return pipe 61 , and hot water flowing out from the first inner pipe 11 is led out from the first fluid outgoing pipe 62 .
図４は、同ヒートポンプユニットにおいて熱交換ユニットに接続される配管を示す斜視図及び側面図である。
第１流体戻り配管６１の一部と冷媒往き配管５２の一部とは、固定箇所７１でロウ付けにて固定している。また、第１流体往き配管６２の一部と冷媒戻り配管５１の一部とは、固定箇所７２でロウ付けにて固定している。
これにより、圧縮機１で発生し冷媒往き配管５２及び冷媒戻り配管５１に伝わる振動を、ロウ付け固定箇所７１、７２で低減できるため、第１外管１２と冷媒戻り配管５１との接合部５１ａや第２外管２２と冷媒往き配管５２との接合部５２ａが振動によって損傷を受けることを防止できる。
FIG. 4 is a perspective view and a side view showing piping connected to the heat exchange unit in the heat pump unit.
A part of the first fluid return pipe 61 and a part of the refrigerant outgoing pipe 52 are fixed at a fixing point 71 by brazing. Further, a part of the first fluid outgoing pipe 62 and a part of the refrigerant return pipe 51 are fixed at a fixing point 72 by brazing.
As a result, vibrations generated in the compressor 1 and transmitted to the refrigerant outgoing pipe 52 and the refrigerant return pipe 51 can be reduced at the brazing fixing points 71 and 72, so that the joint 51a between the first outer pipe 12 and the refrigerant return pipe 51 can be reduced. Also, it is possible to prevent the joint 52a between the second outer tube 22 and the refrigerant pipe 52 from being damaged by vibration.
図５は、同ヒートポンプユニットの内観を示す斜視図であり、図３の状態から収納容器の蓋を取り付けた状態を示している。
第１熱交換器１０、第２熱交換器２０、第１流体連通部３０、及び第２流体連通部４０は、一つの収納容器８０に収納している。従って、熱交換ユニットは、断熱性能に優れ、熱効率が良い。収納容器８０は、断熱材で構成され、上下に分割されている。すなわち、収納容器８０は、上方側断熱材と下方側断熱材とで構成されている。断熱材には、主として発泡スチロールが用いられる。
第１熱交換器１０及び第２熱交換器２０と上方側断熱材の内面との間、第１熱交換器１０及び第２熱交換器２０と下方側断熱材の内面との間には、隙間が設けられている。すなわち、第１熱交換器１０及び第２熱交換器２０と断熱材の内面との間には、隙間が設けられている。
これにより、高温冷媒が流れる第１外管１２、第２外管２２が、断熱材の内面と接触しないので、断熱材の変形を防止できる。従って、断熱材は、長期間に渡り、安定して第１熱交換器１０及び第２熱交換器２０の配置位置を保つことができる。
FIG. 5 is a perspective view showing the interior of the heat pump unit, with the lid of the storage container attached from the state shown in FIG. 3.
The first heat exchanger 10, the second heat exchanger 20, the first fluid communication section 30, and the second fluid communication section 40 are housed in one storage container 80. Therefore, the heat exchange unit has excellent heat insulation performance and high thermal efficiency. The storage container 80 is made of a heat insulating material and is divided into upper and lower parts. That is, the storage container 80 is composed of an upper heat insulating material and a lower heat insulating material. Styrofoam is mainly used as the heat insulating material.
Between the first heat exchanger 10 and second heat exchanger 20 and the inner surface of the upper insulation material, and between the first heat exchanger 10 and second heat exchanger 20 and the inner surface of the lower insulation material, A gap is provided. That is, a gap is provided between the first heat exchanger 10 and the second heat exchanger 20 and the inner surface of the heat insulating material.
Thereby, the first outer tube 12 and the second outer tube 22 through which the high-temperature refrigerant flows do not come into contact with the inner surface of the heat insulating material, so that deformation of the heat insulating material can be prevented. Therefore, the heat insulating material can maintain the positions of the first heat exchanger 10 and the second heat exchanger 20 stably for a long period of time.
ヒートポンプユニットは、収納容器８０、圧縮機１、減圧装置２、蒸発器３、及び送風装置４を、外装体９０内に備えている。
蒸発器３と収納容器８０は、外装体９０内の底板９１に載置している。収納容器８０は送風装置４よりも下方位置で、送風装置４の下流に配置している。これにより、第１熱交換器１０、第２熱交換器２０、第１流体連通部３０、及び第２流体連通部４０を収納することで重くなる収納容器８０を、安定して固定できる。
The heat pump unit includes a storage container 80 , a compressor 1 , a pressure reducing device 2 , an evaporator 3 , and an air blower 4 inside an exterior body 90 .
The evaporator 3 and the storage container 80 are placed on a bottom plate 91 inside the exterior body 90. The storage container 80 is located below the blower 4 and downstream of the blower 4. Thereby, the storage container 80, which becomes heavy due to housing the first heat exchanger 10, the second heat exchanger 20, the first fluid communication section 30, and the second fluid communication section 40, can be stably fixed.
図６は、本発明の他の実施の形態におけるヒートポンプユニットの内観を示す正面図、図７は同ヒートポンプユニットに用いる熱交換器ユニットの構成図である。なお、既に説明した実施の形態と同一機能部材には同一符号を付して説明を省略する。 FIG. 6 is a front view showing the interior of a heat pump unit according to another embodiment of the present invention, and FIG. 7 is a configuration diagram of a heat exchanger unit used in the heat pump unit. In addition, the same reference numerals are given to the same functional members as those in the embodiments already described, and the description thereof will be omitted.
収納容器８０は、上面８１の中央部８２を凹状としている。これにより、収納容器８０内の空間を狭くでき、圧縮機１、減圧装置２、蒸発器３、及び送風装置４とともに収納容器８０を外装体９０内に備えた場合に、収納容器８０を送風装置４よりも下方位置に配置しやすい。
また、図７（ｂ）に示すように、収納容器８０の下面に貫通穴８３を設けている。これにより、収納容器８０内の結露水を排出しやすい。
The storage container 80 has a top surface 81 with a central portion 82 having a concave shape. Thereby, the space inside the storage container 80 can be narrowed, and when the storage container 80 is provided in the exterior body 90 together with the compressor 1, the pressure reducing device 2, the evaporator 3, and the air blower 4, the storage container 80 can be used as an air blower. It is easier to place it in a lower position than 4.
Further, as shown in FIG. 7(b), a through hole 83 is provided in the lower surface of the storage container 80. This makes it easy to drain the condensed water inside the storage container 80.
以上のように、本発明にかかる熱交換器ユニットは、圧力損失が少なく断熱性能に優れているため、給湯機や温水暖房などのヒートポンプ暖房機器に適用できる。 As described above, the heat exchanger unit according to the present invention has low pressure loss and excellent heat insulation performance, so it can be applied to heat pump heating equipment such as water heaters and hot water heaters.
１ 圧縮機
２ 減圧装置
３ 蒸発器
４ 送風装置
１０ 第１熱交換器
１１ 第１内管
１１ｚ、２１ｚ 挿入体
１２ 第１外管
１２ａ、１２ｂ 第１配管
１２ｘ 第１流入外管
１２ｙ 第１流出外管
１２ｙＨ 第１流出外管接続部
１２ｙＬ 第１流出外管螺旋状端部
２０ 第２熱交換器
２１ 第２内管
２２ 第２外管
２２ａ、２２ｂ 第２配管
２２ｘ 第２流入外管
２２ｘＨ 第２流入外管接続部
２２ｘＬ 第２流入外管螺旋状端部
２２ｙ 第２流出外管
３０ 第１流体連通部
４０ 第２流体連通部
５１ 第２流体戻り配管（冷媒戻り配管）
５１ａ、５２ａ 接合部
５２ 第２流体往き配管（冷媒往き配管）
６１ 第１流体戻り配管
６２ 第１流体往き配管
７１、７２ ロウ付け固定箇所
８０ 収納容器
８１ 上面
８２ 中央部
８３ 貫通穴
９０ 外装体
９１ 底板
1 Compressor 2 Pressure reduction device 3 Evaporator 4 Air blower 10 First heat exchanger 11 First inner pipe 11z, 21z Insert body 12 First outer pipe 12a, 12b First piping 12x First inflow outer pipe 12y First outflow outside Pipe 12yH First outflow outer pipe connection part 12yL First outflow outer pipe spiral end 20 Second heat exchanger 21 Second inner pipe 22 Second outer pipe 22a, 22b Second piping 22x Second inflow outer pipe 22xH Second Inflow outer pipe connection part 22xL Second inflow outer pipe spiral end part 22y Second outflow outer pipe 30 First fluid communication part 40 Second fluid communication part 51 Second fluid return pipe (refrigerant return pipe)
51a, 52a Joint part 52 Second fluid outgoing pipe (refrigerant outgoing pipe)
61 First fluid return piping 62 First fluid outgoing piping 71, 72 Brazing fixing points 80 Storage container 81 Top surface 82 Center part 83 Through hole 90 Exterior body 91 Bottom plate
Claims (8)
前記第１流体が流れる第２内管、及び前記第２流体が流れる第２外管を有する第２熱交換器と、
前記第１内管と前記第２内管とを連通させる第１流体連通部と、
前記第１外管と前記第２外管とを連通させる第２流体連通部と、
を備え、
前記第１外管は、それぞれが独立した流体経路を形成する、少なくとも２本の第１配管で構成され、
少なくとも２本の前記第１配管は、それぞれの前記第１配管が隣接した状態で前記第１内管の外周に螺旋状に巻かれ、
それぞれの前記第１配管には、前記第２流体が分岐して流れ、
前記第２外管は、それぞれが独立した流体経路を形成する、少なくとも２本の第２配管で構成され、
少なくとも２本の前記第２配管は、それぞれの前記第２配管が隣接した状態で前記第２内管の外周に螺旋状に巻かれ、
それぞれの前記第２配管には、前記第２流体が分岐して流れ、
前記第１熱交換器、前記第２熱交換器、前記第１流体連通部、及び前記第２流体連通部を、一つの収納容器に収納した熱交換器ユニットであって、
前記第１熱交換器と前記第２熱交換器とを、長手方向が同じで同一高さに併設し、
前記第１外管には、
前記第２流体の流入側となる第１流入外管と、前記第２流体の流出側となる第１流出外管とを形成し、
前記第２外管には、
前記第２流体の流入側となる第２流入外管と、前記第２流体の流出側となる第２流出外管とを形成し、
前記第１流出外管と前記第２流入外管とが前記第２流体連通部で接続され、
前記第１流出外管は、前記第２流体連通部と接続される第１流出外管接続部が、前記第１内管の前記外周に巻かれた第１流出外管螺旋状端部よりも高い位置となるように傾斜して配置され、
前記第２流入外管は、前記第２流体連通部と接続される第２流入外管接続部が、前記第２内管の前記外周に巻かれた第２流入外管螺旋状端部よりも高い位置となるように傾斜して配置され、
前記第１流入外管は、第２流体戻り配管と接続される第１流入外管接続部が、前記第１内管の前記外周に巻かれた第１流入外管螺旋状端部よりも高い位置となるように傾斜して配置され、
前記第２流出外管は、第２流体往き配管と接続される第２流出外管接続部が、前記第２内管の前記外周に巻かれた第２流出外管螺旋状端部よりも高い位置となるように傾斜して配置された
ことを特徴とする熱交換器ユニット。 a first heat exchanger having a first inner pipe through which the first fluid flows and a first outer pipe through which the second fluid flows;
a second heat exchanger having a second inner pipe through which the first fluid flows, and a second outer pipe through which the second fluid flows;
a first fluid communication portion that communicates the first inner pipe and the second inner pipe;
a second fluid communication portion that communicates the first outer tube and the second outer tube;
Equipped with
The first outer tube is composed of at least two first pipes each forming an independent fluid path,
At least two of the first pipes are spirally wound around the first inner pipe with each of the first pipes being adjacent to each other,
The second fluid branches and flows through each of the first pipes,
The second outer tube is composed of at least two second pipes each forming an independent fluid path,
At least two of the second pipes are spirally wound around the second inner pipe with each of the second pipes being adjacent to each other,
The second fluid branches and flows through each of the second pipes,
A heat exchanger unit in which the first heat exchanger, the second heat exchanger, the first fluid communication section, and the second fluid communication section are housed in one storage container ,
The first heat exchanger and the second heat exchanger are installed side by side in the same longitudinal direction and at the same height,
The first outer tube includes:
forming a first inflow outer pipe that is an inflow side of the second fluid and a first outflow outer pipe that is an outflow side of the second fluid;
The second outer tube includes:
forming a second inflow outer pipe that is an inflow side of the second fluid and a second outflow outer pipe that is an outflow side of the second fluid;
the first outflow outer pipe and the second inflow outer pipe are connected at the second fluid communication portion;
The first outflow outer tube has a first outflow outer tube connection portion connected to the second fluid communication portion that is larger than the first outflow outer tube helical end wound around the outer periphery of the first inner tube. It is arranged at a slant so that it is in a high position,
The second outer inflow pipe has a second outer inflow pipe connecting portion connected to the second fluid communication portion that is larger than a second outer inflow pipe helical end wound around the outer periphery of the second inner pipe. It is arranged at a slant so that it is in a high position,
The first outer inflow pipe has a first outer inflow pipe connecting portion connected to the second fluid return pipe higher than a helical end of the first outer inflow pipe wound around the outer circumference of the first inner pipe. It is arranged at an angle so that the position is
The second outflow outer pipe has a second outflow outer pipe connecting portion connected to the second fluid outflow pipe higher than a second outflow outer pipe helical end wound around the outer periphery of the second inner pipe. placed at an angle so that
A heat exchanger unit characterized by:
少なくとも２本の前記第２配管のそれぞれの前記第２流入外管接続部の高さを異ならせた
ことを特徴とする請求項１に記載の熱交換器ユニット。 The heights of the first outflow outer pipe connection portions of each of the at least two first pipes are different;
The heat exchanger unit according to claim 1, wherein the heights of the second inflow outer pipe connecting portions of the at least two second pipes are different from each other.
少なくとも２本の前記第２配管のそれぞれの前記第２流出外管接続部の高さを異ならせた
ことを特徴とする請求項１に記載の熱交換器ユニット。 The heights of the first inflow outer pipe connection portions of each of the at least two first pipes are different;
The heat exchanger unit according to claim 1, wherein the heights of the second outflow outer pipe connection portions of the at least two second pipes are different from each other.
ことを特徴とする請求項１から請求項３のいずれか１項に記載の熱交換器ユニット。 From claim 1 , wherein the first inflow outer tube, the first outflow outer tube, the second inflow outer tube, and the second outflow outer tube are approximately L-shaped in plan view. 4. A heat exchanger unit according to claim 3 .
ことを特徴とする請求項１から請求項４のいずれか１項に記載の熱交換器ユニット。 5. The heat exchanger unit according to claim 1, wherein the storage container has a concave upper surface.
ことを特徴とする請求項１から請求項５のいずれか１項に記載の熱交換器ユニット。 The heat exchanger unit according to any one of claims 1 to 5, wherein a through hole is provided in the lower surface of the storage container.
前記第２流体として冷媒を用い、
前記冷媒を圧縮する圧縮機と、
前記第１熱交換器及び前記第２熱交換器で放熱した前記冷媒を減圧する減圧装置と、
前記減圧装置で減圧した前記冷媒を蒸発させる蒸発器と、
前記圧縮機で圧縮された前記冷媒を前記第１外管に導く冷媒戻り配管と、
前記第２外管から流出する前記冷媒を前記減圧装置に導く冷媒往き配管と、
前記第２内管に前記第１流体を導く第１流体戻り配管と、
前記第１内管から流出する前記第１流体を導出する第１流体往き配管と
を備え、
前記第１流体戻り配管の一部と前記冷媒往き配管の一部とをロウ付けにて固定し、
前記第１流体往き配管の一部と前記冷媒戻り配管の一部とをロウ付けにて固定した
ことを特徴とするヒートポンプユニット。 A heat pump unit comprising the heat exchanger unit according to any one of claims 1 to 6,
using a refrigerant as the second fluid,
a compressor that compresses the refrigerant;
a pressure reducing device that reduces the pressure of the refrigerant heat radiated by the first heat exchanger and the second heat exchanger;
an evaporator that evaporates the refrigerant reduced in pressure by the pressure reduction device;
a refrigerant return pipe that guides the refrigerant compressed by the compressor to the first outer pipe;
a refrigerant outgoing pipe that guides the refrigerant flowing out from the second outer pipe to the pressure reducing device;
a first fluid return pipe that guides the first fluid to the second inner pipe;
a first fluid outgoing pipe that leads out the first fluid flowing out from the first inner pipe;
fixing a part of the first fluid return pipe and a part of the refrigerant going pipe by brazing,
A heat pump unit characterized in that a part of the first fluid outgoing pipe and a part of the refrigerant return pipe are fixed by brazing.
前記収納容器、前記圧縮機、前記減圧装置、前記蒸発器、及び前記送風装置を、外装体内に備え、
前記蒸発器と前記収納容器を底板に載置し、
前記収納容器を前記送風装置よりも下方位置に配置し、
前記収納容器を前記送風装置の下流に配置した
ことを特徴とする請求項７に記載のヒートポンプユニット。 comprising an air blower that blows air to the evaporator,
The storage container, the compressor, the pressure reduction device, the evaporator, and the blower are provided in an exterior body,
placing the evaporator and the storage container on a bottom plate;
arranging the storage container at a lower position than the blower;
The heat pump unit according to claim 7, wherein the storage container is arranged downstream of the blower.
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| JP2011226730A (en) | 2010-04-22 | 2011-11-10 | Panasonic Corp | Heat pump heat source machine |
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