JP2001221533A - Down-flow liquid film type heat exchanger - Google Patents
Down-flow liquid film type heat exchangerInfo
- Publication number
- JP2001221533A JP2001221533A JP2000032667A JP2000032667A JP2001221533A JP 2001221533 A JP2001221533 A JP 2001221533A JP 2000032667 A JP2000032667 A JP 2000032667A JP 2000032667 A JP2000032667 A JP 2000032667A JP 2001221533 A JP2001221533 A JP 2001221533A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- transfer tube
- heat exchanger
- wound
- transfer tubes
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、伝熱管の外周面に
液を流下させて熱移動を行わせる流下液膜式熱交換器に
関する。この種の熱交換器は、海水淡水化装置、吸収冷
凍機、化学プロセス装置などで使用される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a falling liquid film heat exchanger in which a liquid flows down an outer peripheral surface of a heat transfer tube to perform heat transfer. This type of heat exchanger is used in seawater desalination equipment, absorption refrigerators, chemical processing equipment, and the like.
【0002】[0002]
【従来の技術】流下液膜式熱交換器は、密閉された容器
内に水平に多数の伝熱管を配置して構成され、この伝熱
管の内部に流体を流す一方、伝熱管の上方から液を供給
し、伝熱管の外周面に沿って液を膜状に流下させ、伝熱
管内外の流体を熱交換させるようにしている。2. Description of the Related Art A falling liquid film type heat exchanger is constituted by arranging a large number of heat transfer tubes horizontally in a sealed container. A fluid flows inside the heat transfer tubes, while a liquid flows from above the heat transfer tubes. Is supplied, the liquid flows down in a film form along the outer peripheral surface of the heat transfer tube, and the fluid inside and outside the heat transfer tube exchanges heat.
【0003】例えば吸収冷凍機では、吸収器、蒸発器、
凝縮器が流下液膜式の熱交換器を構成し、その殆どがシ
ェルアンドチューブ型である。このシェルアンドチュー
ブ型の熱交換器は、側面に伝熱管を通すための穴が多数
開いた胴体に伝熱管を取り付けて製造されている。各熱
交換器に取り付けられる伝熱管の本数は、数百本にもの
ぼり、さらに大型の冷凍機ではその伝熱管長も長くなる
傾向にある。For example, in an absorption refrigerator, an absorber, an evaporator,
The condenser constitutes a falling film type heat exchanger, most of which is a shell and tube type. The shell-and-tube heat exchanger is manufactured by attaching a heat transfer tube to a body having a large number of holes on the side surface for passing the heat transfer tube. The number of heat transfer tubes attached to each heat exchanger is as high as several hundreds, and the length of the heat transfer tubes tends to be longer in larger refrigerators.
【0004】[0004]
【発明が解決しようとする課題】上記のように、従来の
流下液膜式熱交換器は、シェルアンドチューブ型とし
て、胴体の側面に多数の穴を開けて伝熱管を穴通し作業
により取り付けること、伝熱管の本数が数百本と多いこ
と、大型の冷凍機では伝熱管長が長くなること、などの
ため、この熱交換器の製造に当たっては膨大な労力を必
要としていた。As described above, the conventional falling film type heat exchanger has a shell-and-tube type in which a large number of holes are formed in a side surface of a body, and a heat transfer tube is attached through a hole. In addition, since the number of heat transfer tubes is as large as several hundreds, and the length of the heat transfer tubes in a large-sized refrigerator is long, enormous labor was required in manufacturing the heat exchanger.
【0005】そこで本発明の目的は、伝熱管長が比較的
長くなる流下液膜式の熱交換器において、施工を容易に
行い得るこの種の熱交換器を提供することにある。An object of the present invention is to provide a heat exchanger of the falling liquid film type in which the length of a heat transfer tube is relatively long and which can be easily installed.
【0006】[0006]
【課題を解決するための手段】本発明により提供する流
下液膜式熱交換器は、外周面に液を流下させて熱移動を
行わせる伝熱管がパンケーキ状に巻かれ、このパンケー
キ状に巻かれた伝熱管が垂直方向にある間隔をおいて層
状に配置され、もって、比較的長い伝熱管をコンパクト
にまとめ、熱交換器の大型化を抑えた。このようなパン
ケーキ状の伝熱管は、別ラインでの組み立てが可能であ
り、熱交換器本体への取り付けは分岐用のヘッダーのみ
となり、さほど労力を必要としないで済む。In the falling liquid film heat exchanger provided by the present invention, a heat transfer tube for causing a liquid to flow down to the outer peripheral surface to perform heat transfer is wound into a pancake shape. The heat transfer tubes wound in a vertical direction are arranged in a layer at a certain interval in the vertical direction, so that the relatively long heat transfer tubes are compacted and the size of the heat exchanger is suppressed. Such a pancake-shaped heat transfer tube can be assembled on a separate line, and can be attached to the heat exchanger main body only with a branching header, so that much labor is not required.
【0007】パンケーキ状に巻かれた伝熱管の内外層の
端部には、伝熱管内部に流す流体を分岐するためのヘッ
ダーを設けると良い。[0007] At the ends of the inner and outer layers of the heat transfer tube wound in a pancake shape, it is preferable to provide a header for branching the fluid flowing inside the heat transfer tube.
【0008】パンケーキ状に巻かれた伝熱管の内外層方
向及び上下層方向のいずれの隣り合う管部間をも棒また
は線材により仕切ることで、上段コイルの重力によるた
わみを防ぐことができる。[0008] By separating the adjacent tube portions in the inner and outer layer directions and the upper and lower layer directions of the heat transfer tube wound in a pancake shape with a rod or a wire, it is possible to prevent the upper coil from bending due to gravity.
【0009】[0009]
【発明の実施の形態】図1は、本発明に係る流下液膜式
熱交換器の実施例を伝熱管及び分岐用ヘッダーにて示し
たものである。FIG. 1 shows an embodiment of a falling liquid film heat exchanger according to the present invention using a heat transfer tube and a branch header.
【0010】伝熱管1は、図1に示した通り、パンケー
キ状(渦巻き状;スパイラル状)にに巻かれており、こ
のパンケーキ状態がパンケーキ状に成形することにより
維持されたものである。このパンケーキ状に巻かれた伝
熱管1を垂直方向に層をなすように積み重ねて構成され
ている。パンケーキ状に巻かれた伝熱管の内外層端部に
は分岐用ヘッダー2,2が取り付けられており、上下に
積み重ねられた伝熱管のいずれも当該分岐用ヘッダー2
に一括して取り付けられている。As shown in FIG. 1, the heat transfer tube 1 is wound in a pancake shape (spiral shape; spiral shape), and this pancake state is maintained by forming it into a pancake shape. is there. The heat transfer tubes 1 wound in a pancake shape are stacked so as to form layers in the vertical direction. Branching headers 2 and 2 are attached to the inner and outer layer ends of the heat transfer tube wound in a pancake shape, and any of the heat transfer tubes stacked up and down is connected to the branch header 2.
It is attached collectively to.
【0011】[具体例]外径12.70mm、内径11.
70mm、長さ5mの半硬質材の銅管を張力制御機構の伴
った巻き取り機にてスパイラル状に成形し、垂直方向に
5段積み重ね、各コイルの内外両端末は分岐用ヘッダー
にロウ付けにて一括接合した。[Specific Example] Outer diameter 12.70 mm, inner diameter 11.
A 70mm, 5m long semi-rigid copper tube is formed into a spiral shape by a winder with a tension control mechanism, and stacked vertically in 5 stages. Both ends of each coil are brazed to the branch header. At once.
【0012】また、上段コイルの重力によるたわみを防
止するため、コイルの内外層及び上下層の相互間をステ
ンレス鋼製の細い棒により仕切った。図2(イ)はその
例で、伝熱管3の配列を上下左右に碁盤目状にして、上
下左右いずれの管部相互間にもステンレス鋼製の棒4で
仕切った構造とした。In order to prevent the upper coil from bending due to gravity, the inner and outer layers of the coil and the upper and lower layers are separated from each other by thin stainless steel rods. FIG. 2A shows an example in which the arrangement of the heat transfer tubes 3 is arranged in a grid pattern in up, down, left, and right directions, and a stainless steel bar 4 is provided between any of the upper, lower, left, and right tube portions.
【0013】図2(ロ)は、伝熱管3の配列を上下左右
の層構成を千鳥配置にし、隣り合ういずれの管相互間に
もステンレス鋼製の棒4により仕切った他の例である。FIG. 2B shows another example in which the arrangement of the heat transfer tubes 3 is arranged in a staggered arrangement of the upper, lower, left and right layers, and the adjacent tubes are separated by a stainless steel rod 4.
【0014】このように構成したパンケーキ状の伝熱管
によれば、従来のシェルアンドチューブ型よりもコンパ
クトにまとめられ、これを熱交換器本体に組み込んだ際
にも熱交換器の大型化を防ぐことができる。また、この
ようなパンケーキ状の伝熱管は、熱交換器本体とは別ラ
インでの組み立てが可能であり、熱交換器本体への取り
付けは、分岐ヘッダーのみで良くなるため、さほど労力
を必要としない。According to the pancake-shaped heat transfer tube constructed as described above, the heat transfer tube can be made more compact than the conventional shell-and-tube type, and the heat exchanger can be enlarged even when it is incorporated in the heat exchanger body. Can be prevented. In addition, such a pancake-shaped heat transfer tube can be assembled on a separate line from the heat exchanger body, and mounting on the heat exchanger body requires only a branch header, requiring much labor. And not.
【0015】[0015]
【発明の効果】以上説明したように、本発明によれば、
伝熱管長が比較的長くなる流下液膜式の熱交換器におい
て、施工を容易に行い得るこの種の熱交換器を提供する
という所期の課題;目的を達成することができ、製造コ
ストの大幅な低減、機器の低コスト化に大きく貢献でき
るものである。As described above, according to the present invention,
The intended problem of providing a heat exchanger of the falling liquid film type in which the length of the heat transfer tube is relatively long, which can easily perform construction; This greatly contributes to significant reductions and cost reduction of equipment.
【図1】本発明の実施例を流下式熱交換器の伝熱管及び
ヘッダーにて示す斜視図。FIG. 1 is a perspective view showing an embodiment of the present invention with a heat transfer tube and a header of a downflow type heat exchanger.
【図2】本発明の実施例を伝熱管の上下左右の層の構造
により示したもので、(イ)は碁盤目状に密接配列した
例の断面説明図、(ロ)は千鳥状に配列した例の断面説
明図。FIG. 2 shows an embodiment of the present invention by the structure of upper, lower, left and right layers of a heat transfer tube, wherein (a) is a cross-sectional explanatory view of an example in which the tubes are closely arranged in a grid pattern, and (b) is a staggered arrangement. Sectional explanatory drawing of the example.
1 銅管(伝熱管) 2 ヘッダー 3 銅管(伝熱管) 4 ステンレス鋼の棒または線 1 Copper tube (heat transfer tube) 2 Header 3 Copper tube (heat transfer tube) 4 Stainless steel rod or wire
Claims (3)
行わせる流下液膜式熱交換器において、伝熱管がパンケ
ーキ状に巻かれ、このパンケーキ状に巻かれた伝熱管が
垂直方向にある間隔をおいて層状に配置されたことを特
徴とする流下液膜式熱交換器。1. A falling film heat exchanger in which a liquid flows down to an outer peripheral surface of a heat transfer tube to perform heat transfer, wherein the heat transfer tube is wound in a pancake shape, and the heat transfer tube wound in a pancake shape is provided. Are arranged in layers at a certain interval in the vertical direction.
端部には、伝熱管内部に流す流体を分岐するためのヘッ
ダーを有した、請求項1記載の流下液膜式熱交換器。2. A falling liquid film type heat exchange according to claim 1, wherein a header for branching a fluid flowing inside the heat transfer tube is provided at an end of the inner and outer layers of the heat transfer tube wound in a pancake shape. vessel.
向及び上下層方向のいずれの隣り合う管部間をも棒また
は線材により仕切った、請求項1または請求項2記載の
流下液膜式熱交換器。3. The flowing liquid according to claim 1, wherein adjacent pipe portions in the inner and outer layer directions and the upper and lower layer directions of the heat transfer tube wound in a pancake shape are separated by a rod or a wire. Membrane heat exchanger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000032667A JP2001221533A (en) | 2000-02-03 | 2000-02-03 | Down-flow liquid film type heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000032667A JP2001221533A (en) | 2000-02-03 | 2000-02-03 | Down-flow liquid film type heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001221533A true JP2001221533A (en) | 2001-08-17 |
Family
ID=18557236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000032667A Pending JP2001221533A (en) | 2000-02-03 | 2000-02-03 | Down-flow liquid film type heat exchanger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2001221533A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007088719A1 (en) * | 2006-01-31 | 2007-08-09 | Tokai Senko K.K. | Marking ink |
-
2000
- 2000-02-03 JP JP2000032667A patent/JP2001221533A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007088719A1 (en) * | 2006-01-31 | 2007-08-09 | Tokai Senko K.K. | Marking ink |
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