JP3336944B2 - Heat exchange equipment - Google Patents
Heat exchange equipmentInfo
- Publication number
- JP3336944B2 JP3336944B2 JP05939898A JP5939898A JP3336944B2 JP 3336944 B2 JP3336944 B2 JP 3336944B2 JP 05939898 A JP05939898 A JP 05939898A JP 5939898 A JP5939898 A JP 5939898A JP 3336944 B2 JP3336944 B2 JP 3336944B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- hot water
- flow path
- heat
- water supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Details Of Fluid Heaters (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は風呂の追い焚き機能
や暖房機能を有する給湯機において、燃焼熱源が１カ所
存在し、前記機能を満足する熱交換装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater having a bath reheating function and a heating function, in which a single heat source for combustion exists and a heat exchange device satisfying the above functions.
【０００２】[0002]
【従来の技術】従来、一つの燃焼部によって２種類の流
体を同時に加熱できる熱交換器は、給湯と風呂の運転が
できる給湯風呂装置などの複合給湯機に採用されてい
る。この種の従来の熱交換装置は特開平９−１４５１６
２号公報に記載されているようなものがあった。この熱
交換装置では、図１２に示す様に、上下一対の同一径の
流体回路１と２を接触させて共通する複数枚の伝熱フィ
ン３を貫通させ、使用しない機能の流体回路が受ける熱
を、使用している流体に接合部４を通じて放熱し、使用
しない方の流体温度の上昇を抑制している。この時流体
回路１と２は少なくとも一方が変形しているが、同一径
であり接合部４にはロウ材が介在しないようにして接触
させている。2. Description of the Related Art Conventionally, a heat exchanger capable of simultaneously heating two types of fluids by one combustion section has been employed in a combined water heater such as a hot water supply bath apparatus capable of operating hot water and a bath. A conventional heat exchanger of this type is disclosed in Japanese Patent Application Laid-Open No. Hei 9-14516.
There was one as described in Japanese Patent Publication No. In this heat exchange apparatus, as shown in FIG. 12, a pair of upper and lower fluid circuits 1 and 2 having the same diameter are brought into contact with each other to penetrate a plurality of common heat transfer fins 3 to receive heat received by a fluid circuit of a function not used. Is dissipated to the used fluid through the joint portion 4 to suppress the rise in the temperature of the fluid that is not used. At this time, at least one of the fluid circuits 1 and 2 is deformed, but the fluid circuits 1 and 2 have the same diameter and are brought into contact with the joining portion 4 so that the brazing material does not intervene.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の熱交換器の構成では、特に上管２を通過する流体を
加熱したいときに、所定の燃焼量を超えると火炎に近い
下管１への受熱量が多くなる。この時、上管２の流路面
積が大きいと流速が落ち熱伝達率が低下するため、下管
１から上管２への伝熱量が十分確保できず下管１の流体
温度は上昇し、沸騰することもあり、そのため、装置と
しては耐久性と安全性の点で必ずしも十分とは言い難い
ものであった。However, in the configuration of the conventional heat exchanger, when the fluid passing through the upper tube 2 is to be heated, if the amount of combustion exceeds a predetermined combustion amount, the heat is transferred to the lower tube 1 close to the flame. The amount of heat received increases. At this time, if the flow path area of the upper pipe 2 is large, the flow velocity decreases and the heat transfer coefficient decreases, so that the heat transfer from the lower pipe 1 to the upper pipe 2 cannot be sufficiently secured, and the fluid temperature of the lower pipe 1 increases, It may be boiling, so that the device is not always sufficient in terms of durability and safety.
【０００４】また、温度上昇を抑制するために、燃焼量
を抑えるといった制御を導入していたため、本来の性能
を十分に発揮できない場合も生じていた。Further, in order to suppress the temperature rise, control for suppressing the combustion amount has been introduced, so that the original performance may not be sufficiently exhibited.
【０００５】さらに、上下両管１と２の接合にはロウ材
５を介在させず、上下両管１、２と伝熱フィン３の接合
はロウ材５を介在させる構成としているが、下管１と上
管２の間にロウ材５を介在させず面接触を実現すること
は非常に困難であった。Further, the brazing material 5 is not interposed between the upper and lower pipes 1 and 2 but the brazing material 5 is interposed between the upper and lower pipes 1 and 2 and the heat transfer fin 3. It was very difficult to realize surface contact without interposing the brazing material 5 between the upper tube 1 and the upper tube 2.
【０００６】[0006]
【課題を解決するための手段】本発明は上記課題を解決
するために、燃焼部によって加熱される二つの異なる流
体回路を上下一対にして、伝熱フィンを貫通させた熱交
換器を有し、前記上方側流路と下方側流路の間に間隙を
設け、前記間隙に重力と毛細管現象でロウ材を介在さ
せ、上方側の管の径を下方側の管の径より小さくし、下
方側の管の接合部を凹型にし上方側の管の下弦とロウ接
合することを特徴とする熱交換装置である。さらに、凹
型となる隔壁により、二つの異なる流体回路を形成し上
方側の流体回路の断面積を下方側の流体回路の断面積よ
り小さくすることを特徴とする熱交換装置である。Means for Solving the Problems The present invention to solve the above problems, and two different fluid circuits heated by the combustion unit to the upper and lower, have a heat exchanger passed through the heat transfer fins A gap between the upper flow path and the lower flow path.
And a brazing material is interposed in the gap by gravity and capillary action.
The diameter of the upper tube is made smaller than the diameter of the lower tube, the joint of the lower tube is made concave, and the lower tube is brazed to the lower chord of the upper tube. Further, the heat exchange device is characterized in that two different fluid circuits are formed by the concave partition walls, and the sectional area of the upper fluid circuit is made smaller than the sectional area of the lower fluid circuit.
【０００７】上記発明によれば、一つの缶体で二つの機
能を備えた熱交換装置において、一つの機能のみを使用
したときに、使用しない機能の方の管内流体の沸騰を抑
制することができる。[0007] According to the above invention, in a heat exchanger having two functions in one can, when only one function is used, it is possible to suppress the boiling of the fluid in the pipe of the unused function. it can.
【０００８】[0008]
【発明の実施の形態】本発明は、燃焼部によって加熱さ
れる二つの異なる流路を上下一対にロウ材を介して接合
し伝熱フィンを貫通させた熱交換器を有し、前記上方側
流路と下方側流路の間に間隙を設け、前記間隙に重力と
毛細管現象でロウ材を介在させ、前記下方側流路の管の
接合部が凹型とした熱交換装置である。DETAILED DESCRIPTION OF THE INVENTION The present invention includes a heat exchanger passed through the heat transfer fins are joined via a brazing material of two different flow paths to be heated up and down the pair by the combustion section, the upper side
A gap is provided between the flow path and the lower flow path, and gravity is applied to the gap.
This is a heat exchange device in which a brazing material is interposed by capillary action and a joint of the pipes in the lower flow path is concave.
【０００９】また、下方側流路の管の接合部である凹部
が上方側流路の管の下弦と合致する請求項２記載の熱交
換装置である。The heat exchange apparatus according to claim 2, wherein the concave portion, which is a joint portion of the pipes of the lower flow path, matches the lower chord of the pipe of the upper flow path.
【００１０】また、上方側の流路の管の径を下方側の流
路の管の径より小さくした請求項３記載の熱交換装置で
ある。The heat exchanger according to claim 3, wherein the diameter of the pipe in the upper flow path is smaller than the diameter of the pipe in the lower flow path.
【００１１】また、上管が貫通する伝熱フィンの前記上
管の周囲に遮熱部を設けた請求項４記載の熱交換装置で
ある。The heat exchanger according to claim 4, wherein a heat shield is provided around the upper tube of the heat transfer fin through which the upper tube passes.
【００１２】[0012]
【実施例】以下、本発明の実施例について図面を用いて
説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】（実施例１） 図１から図７は本発明の実施例１であり、例えば本発明
の熱交換器を給湯風呂装置に組み込んだ構成を模式的に
示したものと、フィンパイプ熱交換器の断面図である。
本実施例の給湯風呂装置は、６は熱交換器であり、７は
燃焼部であるバーナであり、バーナ７の燃焼により発生
する排熱を通過させる缶体８と、缶体８に設けた流体回
路で上部が凹型をした給湯管９（下管）と、もう一つの
流体回路である円管である風呂管１０（上管）を、燃焼
ガスの流れに沿う如く、上下一対として伝熱フィン１１
を貫通した構成となっている。ここで、風呂管１０の上
部の伝熱フィン１１にはロウ材１２を２本挿入できるロ
ウ材穴Ａ１３と、遮熱部である遮熱穴１４が設けられ、
さらに給湯管９の肩の左右の伝熱フィン１１にロウ材１
２を２本挿入するロウ材穴Ｂ１５を設けている。(Embodiment 1) FIGS. 1 to 7 show Embodiment 1 of the present invention. For example, FIG. 1 schematically shows a configuration in which a heat exchanger of the present invention is incorporated in a hot water supply bath apparatus, and FIG. It is sectional drawing of an exchanger.
In the hot water supply bath apparatus of the present embodiment, 6 is a heat exchanger, 7 is a burner which is a combustion part, and is provided in the can 8 and the can 8 for passing exhaust heat generated by combustion of the burner 7. The heat transfer pipe 9 (lower pipe) having a concave upper part in the fluid circuit and the bath pipe 10 (upper pipe) which is another fluid circuit as a circular pipe are heat-transferred as an upper and lower pair along the flow of combustion gas. Fin 11
Through. Here, the heat transfer fins 11 on the upper part of the bath pipe 10 are provided with a brazing material hole A13 into which two brazing materials 12 can be inserted and a heat shielding hole 14 as a heat shielding part.
Further, the brazing material 1 is applied to the heat transfer fins 11 on the left and right of the shoulder of the hot water supply pipe 9.
2, two brazing material holes B15 are provided.
【００１４】図２の給湯管９上部の凹型と風呂管１０下
部の下弦の接合部１６の間隙は、ロウ材穴Ａ１３に設け
ていたロウ材が溶融し、ロウ材１２で埋まり、接合され
ている。この時、間隙は溶融したロウ材１２が重力と毛
細管現象によって最も良好に流動する値（約４０μｍ）
に設定される。また、左右対称にロウ材穴Ａ１３が設け
られているので、伝熱フィン１１と風呂管１０は良好に
ロウ付けできる。同じく、左右対称にロウ材穴Ｂ１５が
設けられているので、伝熱フィン１１と給湯管９は良好
にロウ付けできる。In the gap between the concave portion above the hot water supply pipe 9 and the lower chord joint 16 below the bath pipe 10 in FIG. 2, the brazing material provided in the brazing material hole A13 is melted, filled with the brazing material 12, and joined. I have. At this time, the gap is a value (about 40 μm) at which the molten brazing material 12 flows best due to gravity and capillary action.
Is set to Further, since the brazing material holes A13 are provided symmetrically, the heat transfer fins 11 and the bath tube 10 can be brazed well. Similarly, since the brazing material hole B15 is provided symmetrically, the heat transfer fins 11 and the hot water supply pipe 9 can be brazed well.
【００１５】従来の構成での課題は、二つの機能のうち
一つの機能のみを使っている状態で、所定の燃焼量を超
えると、上下一対の両管路間の接触領域を通じての伝熱
量が不十分となり、使用しない機能の流体が沸騰するこ
とである。この課題を解決する手段として、流体回路を
変形させ給湯管９と風呂管１０の接触面積を拡大すると
共に接合部１６をロウ材１２により確実に接触させ伝熱
量を増加させることと、風呂管１０の流路面積を小さく
し内部流速を速めることで、給湯管９から風呂管１０へ
の伝熱量を増加させることが考えられる。The problem with the conventional structure is that when only one of the two functions is used and the combustion amount exceeds a predetermined amount, the amount of heat transfer through the contact area between the pair of upper and lower pipes is reduced. It becomes insufficient and the fluid of the unused function boils. As means for solving this problem, the fluid circuit is deformed to increase the contact area between the hot-water supply pipe 9 and the bath pipe 10 and to make sure that the joint 16 is in contact with the brazing material 12 to increase the amount of heat transfer. It is conceivable to increase the amount of heat transfer from the hot-water supply pipe 9 to the bath pipe 10 by reducing the flow path area of the above and increasing the internal flow velocity.
【００１６】そこで本発明の構成によれば、給湯管９で
ある下管が風呂管１０である上管よりも径が大きいため
溶けたロウ材１２が接合部１６へまわるとともに、下管
である給湯管９の接合部１６の形状が凹型であり間隙を
４０μｍ程度とし重力と毛細管現象でロウ材１２がまわ
りやすい構成としている。したがって接合部１６の面が
多少凹凸していても確実に接触できるため、伝熱面積が
減少することがない。また、風呂単独運転を行うとき
は、給湯管９の滞留水が沸騰することが多いが、風呂管
１０の径を給湯管９よりも小さくすることで風呂管１０
を通過する流体の流速が早くなり、伝熱効率が増加す
る。さらに、給湯単独運転時の給湯管９を加熱し最大給
湯能力を発揮する際には、風呂管１０への伝熱フィン１
１からの受熱量が多くなり風呂管１０の沸騰する可能性
が増加するが、遮熱穴１４とロウ材穴Ａ１３により受熱
する量を制限できる。Therefore, according to the configuration of the present invention, the lower pipe as the hot water supply pipe 9 is larger in diameter than the upper pipe as the bath pipe 10, so that the melted brazing material 12 flows to the joint 16 and is the lower pipe. The shape of the joint 16 of the hot water supply pipe 9 is concave, the gap is about 40 μm, and the brazing material 12 is easily turned by gravity and capillary action. Therefore, even if the surface of the joint portion 16 is slightly uneven, the contact can be surely made, so that the heat transfer area does not decrease. In addition, when the bath is operated alone, the water retained in the hot water supply pipe 9 often boils.
The flow velocity of the fluid passing through the air becomes faster, and the heat transfer efficiency increases. Further, when the hot water supply pipe 9 is heated and the maximum hot water supply capacity is exhibited during the sole operation of the hot water supply, the heat transfer fins 1 to the bath pipe 10 are provided.
Although the amount of heat received from 1 increases and the possibility of the boiling of the bath tube 10 increases, the amount of heat received by the heat shield hole 14 and the brazing material hole A13 can be limited.
【００１７】従って、図２の構成で、例えば給湯は行わ
ずに風呂運転を行った場合、バーナ７から給湯管９に加
熱される熱量は従来例と同じであるが、給湯管９と風呂
管１０とのロウ材１２を介して確実に接触できる。さら
に風呂管１０の管の径を給湯管９の管の径より小さく
し、遮熱穴１４とロウ材穴Ａ１３で伝熱量を制限するこ
とにより風呂管１０の受熱量を制御し管内流速を速める
ことで熱伝達率が向上する。そして昇温した給湯水が両
管９、１０の接触領域を通じて風呂水へ放熱し、その放
熱量は従来の構成より増えることとなる。従って、給湯
水の昇温は抑制され、燃焼量が増加しても流体が沸騰す
ることはなくなる。Therefore, in the configuration of FIG. 2, for example, when the bath operation is performed without hot water supply, the amount of heat to be heated from the burner 7 to the hot water supply pipe 9 is the same as the conventional example, but the hot water supply pipe 9 and the bath pipe 10 can be reliably contacted through the brazing material 12. Further, the diameter of the bath tube 10 is made smaller than the diameter of the hot water supply tube 9 and the amount of heat transfer is restricted by the heat shield hole 14 and the brazing material hole A13, thereby controlling the amount of heat received by the bath tube 10 and increasing the flow velocity in the tube. This improves the heat transfer coefficient. Then, the heated hot water radiates heat to the bath water through the contact area between the pipes 9 and 10, and the amount of heat radiation increases as compared with the conventional configuration. Therefore, the temperature rise of the hot water is suppressed, and the fluid does not boil even if the combustion amount increases.
【００１８】つまり、二つの機能のうち一つの機能のみ
を使っている状態で、滞留している流体の昇温は抑制さ
れるため、両管９、１０のスケール発生防止と熱交換器
の延命化を図ることができる。また、滞留している流体
の温度上昇に伴って、バーナ７の出力を制限する必要も
なく、装置の性能が十分に発揮でき、ユーザーに与えて
いた不快感は解消される。In other words, when only one of the two functions is used, the temperature of the retained fluid is suppressed from rising, so that scale generation of both pipes 9 and 10 is prevented and the life of the heat exchanger is extended. Can be achieved. In addition, the output of the burner 7 does not need to be limited as the temperature of the retained fluid increases, and the performance of the apparatus can be sufficiently exhibited, and the discomfort given to the user is eliminated.
【００１９】さらに、図１のような流体回路の構成にし
たことによって、以下のような効果が得られる。従来の
丸管を接合する構成に比較して、給湯管９を凹型とする
ため管の高さが低くなるため、缶体８のコンパクト化が
実現される。缶体８がコンパクトになれば、燃焼ガスの
排気抵抗が低減されるため、バーナ７のコンパクト化も
可能となる。また、両管９、１０間の伝熱量の増加に伴
い、両管９、１０に接する伝熱フィン１１の高温部が減
るため、伝熱フィン１１の酸化が抑制される。従って、
伝熱フィン１１の耐久性と信頼性が向上する。Further, by adopting the configuration of the fluid circuit as shown in FIG. 1, the following effects can be obtained. Compared with a conventional configuration in which round tubes are joined, the height of the hot water supply tube 9 is reduced because the shape of the hot water supply tube 9 is concave, so that the can body 8 can be made more compact. If the can 8 is made compact, the exhaust resistance of the combustion gas is reduced, so that the burner 7 can be made compact. In addition, as the amount of heat transfer between the tubes 9 and 10 increases, the high-temperature portion of the heat transfer fins 11 in contact with the tubes 9 and 10 is reduced, so that the oxidation of the heat transfer fins 11 is suppressed. Therefore,
The durability and reliability of the heat transfer fins 11 are improved.
【００２０】また、上下両管９、１０はロウ材１２を介
して接触しているため、どちらか一方の流体回路が熱膨
張しても、ロウ材１２が他方の管に伝わる応力を緩和す
る。従って、過度の熱応力が加わる運転条件でも柔軟に
管が変形するため、缶体８の割れが防止できると共に、
耐久性も向上する。Further, since the upper and lower pipes 9 and 10 are in contact with each other via the brazing material 12, even if one of the fluid circuits thermally expands, the brazing material 12 reduces the stress transmitted to the other pipe. . Therefore, the pipe is flexibly deformed even under the operating condition in which excessive thermal stress is applied, so that the crack of the can 8 can be prevented and
Durability also improves.
【００２１】なお、図１、図２において、給湯管の９の
断面形状を凹型に変形させた一例であるが、この形状の
限りではなく、例えば、給湯管９が風呂管１０の半分程
度を覆うまで変形させた図４の様な構成であればさらに
良好な効果が発揮できる。FIGS. 1 and 2 show an example in which the cross-sectional shape of the hot water supply pipe 9 is deformed into a concave shape. However, the shape is not limited thereto. A configuration as shown in FIG. 4 which is deformed until it is covered can exhibit a better effect.
【００２２】図２、図４の給湯管９の断面形状の変形
は、本実施例では円形管をプレスによって加圧加工して
製造した。この他にも、引き抜き加工管や押し出し加工
管でも図２、図４に示すような断面形状の流体回路は作
製可能である。The deformation of the cross-sectional shape of the hot water supply pipe 9 shown in FIGS. 2 and 4 was manufactured by press-working a circular pipe by a press in this embodiment. In addition, a fluid circuit having a cross-sectional shape as shown in FIGS. 2 and 4 can be manufactured using a drawn pipe or an extruded pipe.
【００２３】図２、図４の構成において、上下一対の流
体回路の下部を給湯管９、上部を風呂管１０としている
が、下部を暖房温水回路としても同様の効果が得られ
る。2 and 4, the lower part of the pair of upper and lower fluid circuits is the hot water supply pipe 9 and the upper part thereof is the bath pipe 10, but the same effect can be obtained even if the lower part is a heating and hot water circuit.
【００２４】また、本実施例では、本発明を給湯風呂装
置に適用した例で説明したが、給湯暖房装置、暖房風呂
装置にも適用できる。In this embodiment, the present invention has been described as an example in which the present invention is applied to a hot water supply bath apparatus. However, the present invention can also be applied to a hot water supply heating apparatus and a heating bath apparatus.
【００２５】また、給湯管９と風呂管１０の凹型をした
接合部１６にロウ材１２が重力と毛細管現象で回り込む
例を示したが、図５に示すように接合部１６に予めロウ
シート１７を設けるかもしくはロウ材を塗布していた
り、図６に示すように棒状ロウ材１２を設けることで更
に良好な接合が可能である。Further, an example is shown in which the brazing material 12 wraps around the concave joint 16 of the hot water supply pipe 9 and the bath pipe 10 due to gravity and capillary action. However, as shown in FIG. Providing or applying a brazing material, or providing a bar-shaped brazing material 12 as shown in FIG. 6 enables better joining.
【００２６】ところで、接合部１６の形状が風呂管１０
の下弦と給湯管９の凹型とが合致する例について説明し
てきたが、図７に示しような給湯管９の凹型が逆三角形
で風呂管１０の下部も逆三角形となり合致する場合でも
ロウ材１２は接合部１６に良好にまわり同様の効果を発
揮するものである。By the way, the shape of the joining portion 16 is
Although the example in which the lower chord of the hot water supply pipe 9 matches the concave shape of the hot water supply pipe 9 has been described, even when the concave shape of the hot water supply pipe 9 is an inverted triangle and the lower part of the bath pipe 10 is also an inverted triangle as shown in FIG. Satisfactorily surrounds the joint portion 16 and exerts the same effect.
【００２７】（実施例２） 図８、図９は本発明の実施例２であり、本発明のフィン
パイプ構成を示したものである。本発明の目的と効果
は、実施例１で示したものと同じであり、本実施例と実
施例１との構成における違いは、給湯管９と風呂管１０
の断面形状を共に変形し、接合部１６の接触長さを拡大
していることである。(Embodiment 2) FIGS. 8 and 9 show Embodiment 2 of the present invention, and show a fin pipe structure of the present invention. The objects and effects of the present invention are the same as those shown in the first embodiment. The difference between the present embodiment and the first embodiment is that the hot water supply pipe 9 and the bath pipe 10 are different.
Are deformed together to increase the contact length of the joint 16.
【００２８】なお、実施例１と同一符号のものは同一構
造を有し、説明は省略する。図８の構成において、給湯
管９の接合部１６の断面形状は扁平部１８と凹部１９を
設けたものであり、風呂管１０の接合部１６も同様に扁
平部１８と凹部１９を設け、両管９、１０をロウ材１２
を介して接合するものである。ここで、給湯管９である
下管が風呂管１０である上管よりも径が大きいため溶け
たロウ材１２が接合部１６へまわるとともに、上下両管
９、１０を変形することで接合部１６の接続長さを大き
くすることが可能である。両管内部の流体同士の熱伝達
は、接合部１６の間隙が４０μｍ程度であり、管及びロ
ウ材の材質が銅で流体が水であるなら、滞留している水
の熱伝達率の方が圧倒的に悪いため、ロウ材の有無によ
る伝熱阻害はさほど問題とならない。The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted. In the configuration of FIG. 8, the cross-sectional shape of the joining portion 16 of the hot water supply pipe 9 is provided with a flat portion 18 and a concave portion 19, and the joining portion 16 of the bath tube 10 is similarly provided with the flat portion 18 and the concave portion 19. Pipes 9 and 10 are brazed 12
Are joined through a wire. Here, since the lower pipe as the hot water supply pipe 9 is larger in diameter than the upper pipe as the bath pipe 10, the melted brazing material 12 flows to the joining section 16 and the upper and lower pipes 9 and 10 are deformed to form the joining section. It is possible to increase the connection length of 16. The heat transfer between the fluids inside the two pipes is as follows. If the gap between the joints 16 is about 40 μm and the material of the pipe and brazing material is copper and the fluid is water, the heat transfer coefficient of the staying water is better. Since it is overwhelmingly bad, the inhibition of heat transfer due to the presence or absence of the brazing material does not matter much.
【００２９】従って、図８の構成で、例えば給湯は行わ
ずに風呂運転を行った場合、バーナ７から給湯管９に加
熱される熱量は従来例と同じであるが、給湯管９と風呂
管１０とのロウ材１２を介して確実に接触でき接合部１
６の長さも確実に長くできる。さらに風呂管１０の管の
径を給湯管９の管の径より小さくし、遮熱穴１４とロウ
材穴Ａ１３で伝熱量を制限することにより風呂管１０の
管の受熱量を制御し管内流速を速めることで熱伝達率を
向上し、昇温した給湯水が両管９、１０の接触領域を通
じて風呂水へ放熱する。その放熱量は従来の構成より増
えることとなる。従って、給湯水の昇温は抑制され、燃
焼量が増加しても流体が沸騰することはなくなる。Therefore, in the configuration of FIG. 8, for example, when a bath operation is performed without hot water supply, the amount of heat to be heated from the burner 7 to the hot water supply pipe 9 is the same as the conventional example, but the hot water supply pipe 9 and the bath pipe are not heated. 10 can be securely contacted with the brazing material 10 via the brazing material 12.
6 can surely be lengthened. Further, the diameter of the bath tube 10 is made smaller than the diameter of the hot water supply tube 9 and the amount of heat transfer is restricted by the heat shield hole 14 and the brazing material hole A13, thereby controlling the amount of heat received by the bath tube 10 so that the flow rate in the tube By increasing the temperature, the heat transfer coefficient is improved, and the heated hot water radiates heat to the bath water through the contact area between the pipes 9 and 10. The amount of heat dissipation will be greater than in the conventional configuration. Therefore, the temperature rise of the hot water is suppressed, and the fluid does not boil even if the combustion amount increases.
【００３０】つまり、二つの機能のうち一つ機能のみを
使っている状態で、滞留している流体の昇温は抑制され
るため、両管９、１０のスケール発生防止と熱交換器の
延命化を図ることができる。また、滞留している流体の
温度上昇に伴って、バーナ７の出力を制限する必要もな
く、装置の性能が十分に発揮でき、ユーザーに与えてい
た不快感は解消される。In other words, when only one of the two functions is used, the temperature of the retained fluid is suppressed from rising, so that scale generation of both pipes 9 and 10 is prevented and the life of the heat exchanger is extended. Can be achieved. In addition, the output of the burner 7 does not need to be limited as the temperature of the retained fluid increases, and the performance of the apparatus can be sufficiently exhibited, and the discomfort given to the user is eliminated.
【００３１】さらに、図８のような流体回路の構成にし
たことによって、以下のような効果が得られる。従来の
構成に比較して、給湯管と９と風呂管１０の高さが共に
低くなるため、缶体８のコンパクト化が実現される。缶
体８がコンパクトになれば、燃焼ガスの排気抵抗が低減
されるため、バーナ７のコンパクト化も可能となる。ま
た、管断面の接合部１６の長さを圧倒的に長くできるた
め上下両管同士の伝熱量を増加でき、両管９、１０に接
する伝熱フィン１１の高温部が減るため、伝熱フィン１
１の酸化が抑制される。従って、伝熱フィン１１の耐久
性と信頼性が向上する。Further, the following effects can be obtained by adopting the configuration of the fluid circuit as shown in FIG. Since the heights of the hot water supply pipe 9, the bath pipe 10 and the hot water supply pipe 9 are both lower than in the conventional configuration, the can 8 can be made more compact. If the can 8 is made compact, the exhaust resistance of the combustion gas is reduced, so that the burner 7 can be made compact. Further, since the length of the joint 16 in the cross section of the tubes can be overwhelmingly increased, the amount of heat transfer between the upper and lower tubes can be increased, and the high-temperature portion of the heat transfer fins 11 in contact with both the tubes 9, 10 is reduced. 1
The oxidation of 1 is suppressed. Therefore, the durability and reliability of the heat transfer fins 11 are improved.
【００３２】また、上下両管９、１０はロウ材１２を介
して接触しているため、どちらか一方の流体回路が熱膨
張しても、ロウ材１２が他方の管に伝わる応力を緩和す
る。従って、過度の熱応力が加わる運転条件でも柔軟に
管が変形するため、缶体８の割れが防止できると共に、
耐久性も向上する。Since the upper and lower tubes 9, 10 are in contact with each other via the brazing material 12, even if one of the fluid circuits thermally expands, the brazing material 12 reduces the stress transmitted to the other tube. . Therefore, the pipe is flexibly deformed even under the operating condition in which excessive thermal stress is applied, so that the crack of the can 8 can be prevented and
Durability also improves.
【００３３】なお、図８において、接合部１６の断面形
状が扁平部１８と凹部１９の形に変形させた一例である
が、この形状の限りではなく、例えば、図９に示すよう
に凹凸の波形であっても同様の効果が発揮できる。Although FIG. 8 shows an example in which the cross-sectional shape of the joining portion 16 is deformed into the shape of the flat portion 18 and the concave portion 19, the shape is not limited to this. For example, as shown in FIG. The same effect can be exhibited even with a waveform.
【００３４】図８、図９に示したように、本実施例では
円形管をプレス成形や引き抜き加工管や押し出し加工管
でも断面形状を変形させての流体回路は製造可能であ
る。As shown in FIGS. 8 and 9, in this embodiment, it is possible to manufacture a fluid circuit in which a circular pipe is formed by press-forming, drawing, or extruding a pipe to change its cross-sectional shape.
【００３５】また、給湯管９と風呂管１０の接合をロウ
材１２が棒状の物を使用し毛細管現象で行う例を示した
が、接合部１６に予めロウ材を塗布していたり、ロウシ
ートを設けたり、棒状ロウ材を設けておいても接合は可
能である。Also, an example has been shown in which the hot water supply pipe 9 and the bath pipe 10 are joined by using a rod-shaped brazing material 12 by a capillary phenomenon. However, the brazing material is applied to the joining portion 16 in advance, or a brazing sheet is used. Bonding is possible even if it is provided or a bar-shaped brazing material is provided.
【００３６】図８の構成において、上下一対の流体回路
の下部を給湯管９、上部を風呂管１０としているが、下
部を暖房温水回路としても同様の効果が得られる。In the configuration shown in FIG. 8, the lower part of the pair of upper and lower fluid circuits is the hot water supply pipe 9 and the upper part is the bath pipe 10, but the same effect can be obtained even if the lower part is the heating and hot water circuit.
【００３７】また、本実施例では、本発明を給湯風呂装
置に適用した例で説明したが、給湯暖房装置、暖房風呂
装置にも適用できる。In this embodiment, the present invention has been described as an example in which the present invention is applied to a hot water supply bath apparatus. However, the present invention can also be applied to a hot water supply heating apparatus and a heating bath apparatus.
【００３８】（参考例１） 図１０、図１１は本発明の参考例１であり、本発明のフ
ィンパイプ構成を示したものである。本発明の目的と効
果は、実施例１で示したものと同じであり、本実施例と
実施例１もしくは実施例２との構成における違いは、二
つの異なる流路を給湯流路２０と風呂流路２１とし、両
流路を一枚の隔壁２２で隔てた構成としていることであ
る。 (Reference Example 1) FIGS. 10 and 11 show Reference Example 1 of the present invention and show a fin pipe structure of the present invention. The objects and effects of the present invention are the same as those shown in Embodiment 1. The difference between this embodiment and Embodiment 1 or Embodiment 2 is that two different flow paths are connected to the hot water supply flow path 20 and the bath. That is, the flow path 21 is used, and the two flow paths are separated by a single partition 22.
【００３９】なお、実施例１と同一符号のものは同一構
造を有し、説明は省略する。 図１０、図１１の構成に
おいて、給湯流路２０と風呂流路２１を隔てる隔壁２２
の形状は凹型とするものである。ここで、下側の給湯流
路２０が上側の風呂流路２１の面積よりも大きくしてい
る。両流路の間隔は隔壁２２の板厚のみであるため、管
同士のロウ接合と比較し熱伝達距離が短くできる。The components having the same reference numerals as in the first embodiment have the same structure, and a description thereof will be omitted. 10 and 11, a partition wall 22 for separating the hot water supply flow path 20 and the bath flow path 21
Has a concave shape. Here, the lower hot water supply flow path 20 is larger than the area of the upper bath flow path 21. Since the distance between the two flow paths is only the thickness of the partition wall 22, the heat transfer distance can be shortened as compared with the brazing of pipes.
【００４０】従って、図１０、図１１の構成で、例えば
給湯は行わずに風呂運転を行った場合、バーナ７から給
湯流路２０に加熱される熱量は従来例とほぼ同じである
が、給湯流路２０と風呂流路２１は隔壁２２を介して隣
接しており、さらに風呂流路２１の面積を給湯流路２０
より小さくし、遮熱穴１４とロウ材穴Ａ１３で伝熱量を
制限することにより風呂流路２１の受熱量を制御し管内
流速を速めることで熱伝達率を向上し、昇温した給湯水
が隔壁２２のみを通じて風呂水へ放熱する。その放熱量
は従来の構成より増えることとなる。従って、給湯水の
昇温は抑制され、燃焼量が増加しても流体が沸騰するこ
とはなくなる。Therefore, in the configuration shown in FIGS. 10 and 11, for example, when the bath operation is performed without hot water supply, the amount of heat to be heated from the burner 7 to the hot water supply passage 20 is almost the same as the conventional example. The flow path 20 and the bath flow path 21 are adjacent to each other with a partition wall 22 therebetween.
The heat transfer rate is improved by controlling the amount of heat received in the bath flow path 21 by increasing the flow rate in the pipe by limiting the amount of heat transfer by the heat shield hole 14 and the brazing material hole A13, thereby improving the heat transfer coefficient. The heat is radiated to the bath water only through the partition wall 22. The amount of heat dissipation will be greater than in the conventional configuration. Therefore, the temperature rise of the hot water is suppressed, and the fluid does not boil even if the combustion amount increases.
【００４１】つまり、二つの機能のうち一つの機能のみ
を使っている状態で、滞留している流体の昇温は抑制さ
れるため、両管９、１０のスケール発生防止と熱交換器
の延命化を図ることができる。また、滞留している流体
の温度上昇に伴って、バーナ７の出力を制限する必要も
なく、装置の性能が十分に発揮でき、ユーザーに与えて
いた不快感は解消される。In other words, when only one of the two functions is used, the temperature of the retained fluid is suppressed, so that the scale generation of both pipes 9 and 10 is prevented and the life of the heat exchanger is extended. Can be achieved. In addition, the output of the burner 7 does not need to be limited as the temperature of the retained fluid increases, and the performance of the apparatus can be sufficiently exhibited, and the discomfort given to the user is eliminated.
【００４２】さらに、図１０、図１１のような流路の構
成にしたことによって、以下のような効果が得られる。
また従来の構成に比較して、給湯流路２０の高さが低く
なるため、缶体８のコンパクト化が実現される。缶体８
がコンパクトになれば、燃焼ガスの排気抵抗が低減され
るため、バーナ７のコンパクト化も可能となる。また、
両流路２０、２１間の伝熱量の増加に伴い、両流路２
０、２１に接する伝熱フィン１１の高温部が減るため、
伝熱フィン１１の酸化が抑制される。従って、伝熱フィ
ン１１の耐久性と信頼性が向上する。Furthermore, the following effects can be obtained by adopting the flow path configuration as shown in FIGS.
In addition, the height of the hot water supply channel 20 is lower than that of the conventional configuration, so that the can body 8 can be made compact. Can 8
Becomes compact, the exhaust resistance of the combustion gas is reduced, so that the burner 7 can be made compact. Also,
With an increase in the amount of heat transfer between the two flow paths 20 and 21, the two flow paths 2
Since the high-temperature portion of the heat transfer fins 11 in contact with 0 and 21 is reduced,
Oxidation of the heat transfer fins 11 is suppressed. Therefore, the durability and reliability of the heat transfer fins 11 are improved.
【００４３】なお、図１０、図１１で示した断面形状は
一例であり、この形状の限りではなく、例えば、図８や
図９の接合部１６の形状であっても同様の効果が発揮で
きる。The cross-sectional shapes shown in FIGS. 10 and 11 are examples, and the present invention is not limited to these shapes. For example, the same effect can be exerted even when the shape of the joint 16 shown in FIGS. 8 and 9 is used. .
【００４４】図１０、図１１の流路は、引き抜き加工管
や押し出し加工管で製造可能である。The flow paths shown in FIGS. 10 and 11 can be manufactured by a drawn pipe or an extruded pipe.
【００４５】図１０、図１１の構成において、両流路の
下側を給湯、上側を風呂としているが、下側を暖房温水
回路としても同様の効果が得られる。In the configurations shown in FIGS. 10 and 11, the lower side of both channels is hot water supply and the upper side is bath, but the same effect can be obtained even if the lower side is a heating and hot water circuit.
【００４６】また、本参考例では、本発明を給湯風呂装
置に適用した例で説明したが、給湯暖房装置、暖房風呂
装置にも適用できる。[0046] Further, in the present embodiment was described using an example of applying the present invention to the hot water bath apparatus, the hot water heating system can be applied to the heating bath apparatus.
【００４７】[0047]
【発明の効果】以上の説明から明らかのように、本発明
によれば、ロウ接合する際、重力と毛細管現象とで接合
部にロウ材が非常にまわりやすく、確実に接合できると
ともに、下管の機能を使用する際に上管の熱を下管に伝
熱し上管の沸騰を防止できる。また、上管の機能を使用
する際に下管の熱を上管に伝熱し下管の沸騰を防止でき
る。すなわち、二つの機能のうち一つの機能のみを使っ
ている状態で燃焼量が増大しても、使用しない機能の流
体の沸騰を防止することができる。As is apparent from the above description, the present invention
According to the above, when brazing, the brazing material is very easy to rotate around the joint due to gravity and capillary action, and it can be securely joined, and the heat of the upper pipe is transferred to the lower pipe when using the function of the lower pipe. Heating can prevent the upper tube from boiling. Further, when the function of the upper tube is used, the heat of the lower tube is transferred to the upper tube to prevent the lower tube from boiling. That is, even if the amount of combustion increases while only one of the two functions is used, it is possible to prevent the fluid having the unused function from boiling.
【００４８】この効果により、スケールの発生防止と熱
交換器の延命化が実現されるとともに、装置の持つ性能
が十分に発揮され、ユーザーに与えていた不快感は解消
される。さらに、缶体と燃焼部のコンパクト化が実現さ
れ、伝熱フィンの酸化が抑制されることで、伝熱フィン
の耐久性と信頼性が向上する。また、熱交換器に過度の
熱応力が加わる運転条件でも柔軟に流体回路が変形する
ため、缶体の割れが防止できると共に、耐久性も向上す
る。By this effect, the generation of scale can be prevented and the life of the heat exchanger can be prolonged, the performance of the apparatus can be sufficiently exhibited, and the discomfort given to the user can be eliminated. Furthermore, since the can body and the combustion section are made compact and oxidation of the heat transfer fins is suppressed, the durability and reliability of the heat transfer fins are improved. Further, since the fluid circuit is flexibly deformed even under an operating condition in which an excessive thermal stress is applied to the heat exchanger, cracking of the can body can be prevented and durability can be improved.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の実施例１の熱交換装置のフィンパイプ
断面図FIG. 1 is a cross-sectional view of a fin pipe of a heat exchange device according to a first embodiment of the present invention.
【図２】同フィンパイプの拡大断面図FIG. 2 is an enlarged sectional view of the fin pipe.
【図３】同フィンパイプの全体構成を示す斜視図FIG. 3 is a perspective view showing the overall configuration of the fin pipe.
【図４】同フィンパイプの別の拡大断面図FIG. 4 is another enlarged sectional view of the fin pipe.
【図５】同フィンパイプの更に別の拡大断面図FIG. 5 is another enlarged sectional view of the fin pipe.
【図６】同フィンパイプの他の拡大断面図FIG. 6 is another enlarged sectional view of the fin pipe.
【図７】同フィンパイプの更に他の拡大断面図FIG. 7 is a further enlarged sectional view of the fin pipe.
【図８】本発明の実施例２の熱交換装置のフィンパイプ
拡大断面図FIG. 8 is an enlarged sectional view of a fin pipe of the heat exchange device according to the second embodiment of the present invention.
【図９】同フィンパイプの別の拡大断面図FIG. 9 is another enlarged sectional view of the fin pipe.
【図１０】本発明の参考例１の熱交換装置のフィンパイ
プ拡大断面図FIG. 10 is an enlarged cross-sectional view of a fin pipe of the heat exchange device according to the first embodiment of the present invention.
【図１１】同フィンパイプの別の拡大断面図FIG. 11 is another enlarged sectional view of the fin pipe.
【図１２】従来の熱交換装置のフィンパイプ拡大断面図FIG. 12 is an enlarged sectional view of a fin pipe of a conventional heat exchange device.
６ 熱交換器 ７ 燃焼部 ９ 下方側流路 １０ 上方側流路 １１ 伝熱フィン １２ ロウ材 １４ 遮熱部 １６ 接合部 ２２ 隔壁 Reference Signs List 6 heat exchanger 7 combustion part 9 lower flow path 10 upper flow path 11 heat transfer fin 12 brazing material 14 heat shield part 16 joint part 22 partition wall
───────────────────────────────────────────────────── フロントページの続き (72)発明者 金崎 幸一 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 吉村 昌知 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 船橋 裕之 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 平９−145162（ＪＰ，Ａ) 特開 平９−303880（ＪＰ，Ａ) 特開 平６−185809（ＪＰ，Ａ) 特開 平９−203559（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F24H 9/00 F24H 1/10 - 1/14 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Koichi Kanazaki 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. In-company (72) Inventor Hiroyuki Funabashi 1006 Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-9-145162 (JP, A) JP-A-9-303880 (JP, A JP-A-6-185809 (JP, A) JP-A-9-203559 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) F24H 9/00 F24H 1/10-1 / 14
Claims (4)
流路を上下一対にロウ材を介して接合し伝熱フィンを貫
通させた熱交換器を有し、前記上方側流路と下方側流路
の間に間隙を設け、前記間隙に重力と毛細管現象でロウ
材を介在させ、前記下方側流路の管の接合部が凹型とな
る熱交換装置。1. A heat exchanger having two upper and lower flow paths heated by a combustion unit joined by a pair of upper and lower brazing materials through heat transfer fins , wherein the upper flow path and the lower flow path Road
A gap is provided between the gaps and the gap is braced by gravity and capillary action.
A heat exchange device in which a material is interposed and a joint portion of the pipe of the lower channel is concave.
方側流路の管の下弦と合致する請求項１記載の熱交換装
置。2. The heat exchange device according to claim 1, wherein the concave portion, which is a joint portion of the pipes of the lower flow path, matches the lower chord of the pipe of the upper flow path.
管の径より小さくした請求項１または２記載の熱交換装
置。3. The heat exchange device according to claim 1, wherein the diameter of the pipe in the upper flow path is smaller than the diameter of the pipe in the lower flow path.
前記上方側流路の管の周囲に遮熱部を設けた請求項１〜
３のいずれか１項記載の熱交換装置。4. A heat shield portion is provided around a pipe of the upper flow path of a heat transfer fin through which a pipe of the upper flow path penetrates .
4. The heat exchange device according to any one of 3 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05939898A JP3336944B2 (en) | 1998-03-11 | 1998-03-11 | Heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05939898A JP3336944B2 (en) | 1998-03-11 | 1998-03-11 | Heat exchange equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11257758A JPH11257758A (en) | 1999-09-24 |
| JP3336944B2 true JP3336944B2 (en) | 2002-10-21 |
Family
ID=13112150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05939898A Expired - Fee Related JP3336944B2 (en) | 1998-03-11 | 1998-03-11 | Heat exchange equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3336944B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210079664A (en) * | 2019-12-20 | 2021-06-30 | 주식회사 성우하이텍 | Battery module assembly for electric vehicle |
| KR20210081828A (en) * | 2019-12-24 | 2021-07-02 | 주식회사 성우하이텍 | Thermal management system of electric vehicle battery module assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE0302127L (en) | 2003-07-24 | 2004-07-27 | Swep Int Ab | Process for the manufacture of a plate heat exchanger |
-
1998
- 1998-03-11 JP JP05939898A patent/JP3336944B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210079664A (en) * | 2019-12-20 | 2021-06-30 | 주식회사 성우하이텍 | Battery module assembly for electric vehicle |
| KR102317985B1 (en) | 2019-12-20 | 2021-10-27 | 주식회사 성우하이텍 | Battery module assembly for electric vehicle |
| KR20210081828A (en) * | 2019-12-24 | 2021-07-02 | 주식회사 성우하이텍 | Thermal management system of electric vehicle battery module assembly |
| KR102317986B1 (en) | 2019-12-24 | 2021-10-27 | 주식회사 성우하이텍 | Thermal management system of electric vehicle battery module assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11257758A (en) | 1999-09-24 |
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