JP4376276B2 - Heat exchange coil - Google Patents

Heat exchange coil Download PDF

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JP4376276B2
JP4376276B2 JP2007150113A JP2007150113A JP4376276B2 JP 4376276 B2 JP4376276 B2 JP 4376276B2 JP 2007150113 A JP2007150113 A JP 2007150113A JP 2007150113 A JP2007150113 A JP 2007150113A JP 4376276 B2 JP4376276 B2 JP 4376276B2
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condensed water
ventilation
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JP2008304095A (en
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和行 笠原
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木村工機株式会社
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Description

本発明は、空調機に使用される熱交換コイルに関するものである。   The present invention relates to a heat exchange coil used in an air conditioner.

特許文献１の熱交換コイルは、コイル通風空気を内部流通熱媒と熱交換して冷風又は温風とするもので、伝熱管群に複数の分割フィン群を挿着し、これらを枠体で固定して構成している。その下方には、通風空気の冷却除湿時に発生する凝縮水（ドレン）を受けて排水するためのドレンパンが、設けてある。この凝縮水は、コイル内外を連通する枠体底部の排水穴と、熱交換コイルの通風出口と、からドレンパンへ排出していた。   The heat exchanging coil of Patent Document 1 is one in which coil ventilation air is heat exchanged with an internal circulation heat medium to produce cold air or hot air. A plurality of divided fin groups are inserted into a heat transfer tube group, and these are framed. Fixed and configured. Below that, a drain pan for receiving and draining condensed water (drain) generated during cooling and dehumidification of the ventilation air is provided. This condensed water was discharged to the drain pan from the drainage hole at the bottom of the frame communicating with the inside and outside of the coil and the ventilation outlet of the heat exchange coil.

特開平１１−３１６０３５号公報Japanese Patent Laid-Open No. 11-316035

ところがコイル通過風速が３．５ｍ／ｓを越えるような高風速の場合、排水穴に流れ込み難くなって排出しきれなかった凝縮水が風下側に押し流され、熱交換コイルの通風出口に多量に集積する。そのため、風圧をまともに受けて凝縮水が大きく飛散し、ドレンパンで受けきれなかった凝縮水が空調機から外部へ漏れ出す問題がある。なお、ドレンパンを通風方向に長くすると空調機が大型化するで好ましくない。また、凝縮水飛散防止のために排水穴開口面積を大きくすると、コイル通風空気が排水穴から外部へ漏れ出し、熱交換コイルのバイパスファクタが大きくなり能力が低下する問題がある。   However, when the wind speed through the coil exceeds 3.5 m / s, the condensed water that could not flow into the drain hole and could not be discharged is pushed down to the leeward side and accumulated in a large amount at the ventilation outlet of the heat exchange coil. To do. For this reason, there is a problem that the condensed water is greatly scattered by receiving the wind pressure properly, and the condensed water that could not be received by the drain pan leaks out from the air conditioner. In addition, it is not preferable to lengthen the drain pan in the ventilation direction because the air conditioner becomes larger. Further, if the drain hole opening area is increased in order to prevent the condensate scattering, the coil ventilation air leaks from the drain hole to the outside, and there is a problem that the bypass factor of the heat exchange coil is increased and the capacity is lowered.

本発明は上記課題を解決するため、ドレンパンの上に配設する熱交換コイルであって、伝熱管群と、この伝熱管群を挿着する複数の分割フィン群と、前記伝熱管群と前記分割フィン群を固定する枠体と、を備え、複数の前記分割フィン群を通風方向に所定間隔で離間させてフィン間隙部を、形成し、前記分割フィン群の各プレートフィンに、風下側への凝縮水移動を妨げる小壁条部を、形成し、前記枠体の底部に、すくなくとも最風下の前記フィン間隙部と前記ドレンパン側とを連通させて凝縮水を排出する中間側スリット部と、最風下の前記分割フィン群の通風出口と前記ドレンパン側とを連通させて凝縮水を排出する通風出口側スリット部と、を形成し、前記枠体の底部に、風上側から前記中間側スリット部へ向かって下る中間側勾配部と、風上側から前記通風出口側スリット部へ向かって下る通風出口側勾配部と、前記通風出口側勾配部に所定間隔で対向させた堰部と、を形成したことを最も主要な特徴とする。   In order to solve the above problems, the present invention provides a heat exchange coil disposed on a drain pan, a heat transfer tube group, a plurality of divided fin groups into which the heat transfer tube group is inserted, the heat transfer tube group, and the A frame for fixing the divided fin group, and forming a fin gap portion by separating the plurality of divided fin groups at a predetermined interval in the wind direction, and to each plate fin of the divided fin group to the leeward side Forming a small wall strip that prevents the movement of the condensed water, and at the bottom of the frame, at least the fin gap portion at the leemost wind and the drain pan side communicate with each other, and an intermediate slit portion that discharges condensed water; A ventilation outlet side slit part that discharges condensed water by communicating the ventilation outlet of the divided fin group at the lowest wind and the drain pan side, and forms the slit part on the bottom side of the frame body from the windward side to the intermediate side slit part Middle slope part going down And a ventilation outlet gradient portion descending toward the windward side to the air outlet slit portion, the weir portions are opposed at a predetermined interval in the air outlet side inclination section, the most important feature that was formed.

本発明によれば、小壁条部８とフィン間隙部７によって風下側への水飛びを防止して枠体３の底部９に凝縮水を移動させることができる。各分割フィン群２の列数は１又は２としているので、分割フィン群当たりの凝縮水量が少なく、水厚・水滴が粗大となるのを防止できて、風圧を受けにくくなり、分割フィン群２から風下側へ水が飛び出すことがなく、仮に分割フィン群２から風下側へ水が飛び出すことがあったとしても、飛散量は極僅かで、フィン間隙部７に落下して水切りされるので、風下側の分割フィン群２に水が飛び移ることはない。
熱交換コイルの中間側では、下り坂になった中間側勾配部１２によって中間側スリット部１０への凝縮水の流れ込みを促して確実に排出できる。しかも、中間側勾配部１２に対向する中間側スリット部１０を成す壁面１６が凝縮水を堰き止める作用をするので、中間側スリット部１０から風下側へ溢れ出ることなく確実にドレンパン４へ排出することができる。さらに、壁面１６は分割フィン群２の領域内へ入り込まないので風圧によるコイル通風空気漏れを防げると共に、下り坂の中間側勾配部１２で凝縮水の流れを強制的に速めることで、中間側スリット部１０の開口面積を大きくせずに凝縮水の排出流量を多くしつつ、コイル通風空気の漏れを最小限に抑えバイパスファクタを小さくして能力低下を防止できる。これらによって、中間側スリット部１０よりも風上側で発生する凝縮水が風下側へ押し流されることなくドレンパン４へ全て排出され、それよりも風下側では、風下側部分のみで発生する凝縮水をドレンパン４に排出すればよいので、排水量が少なくて済む。しかも、中間側スリット部１０は底部９の両端にわたって連続しているので、凝縮水の風下側への移動を一層確実に遮断できる。
熱交換コイルの通風出口側では、下り坂になった通風出口側勾配部１３によって通風出口側スリット部１１への凝縮水の流れ込みを促して確実に排出できる。しかも、通風出口勾配部１３に対向する堰部１４が凝縮水を堰き止める作用をするので、通風出口側スリット部１１から風下側へ溢れ出ることなく確実にドレンパン４へ排出することができる。さらに、下り坂の通風出口側勾配部１３で凝縮水の流れを強制的に速めることで、通風出口側スリット部１１の開口面積を大きくせずに凝縮水の排出流量を多くし、熱交換コイルの通風方向Ａへの長大化を防止して小型化を図れる。しかも、通風出口側スリット部１１は底部９の両端にわたって連続しているので、凝縮水の風下側への移動を一層確実に遮断できる。
以上のような中間側勾配部１２、中間側スリット部１０、中間側スリット部１０の一部を成す壁面１６、通風出口側勾配部１３、通風出口側スリット部１１及び堰部１４の相乗効果によって、コイル通過風速が高風速の場合でも、凝縮水が熱交換コイルの通風出口に集積せずにドレンパン４へ全て排出され、飛散がなくなる。 According to the present invention, condensed water can be moved to the bottom portion 9 of the frame 3 by preventing water jumping to the leeward side by the small wall strip portion 8 and the fin gap portion 7. Since the number of rows of each divided fin group 2 is 1 or 2, the amount of condensed water per divided fin group is small, it is possible to prevent water thickness and water droplets from becoming coarse, and it is difficult to receive wind pressure. Even if there is a case where water does not jump out from the leeward side to the leeward side, even if water jumps out from the divided fin group 2 to the leeward side, the scattering amount is very small, and it falls into the fin gap 7 and is drained. Water does not jump into the split fin group 2 on the leeward side.
On the intermediate side of the heat exchange coil, the intermediate-side gradient portion 12 that has a downward slope facilitates the flow of condensed water into the intermediate-side slit portion 10, and can be reliably discharged. Moreover, since the wall surface 16 that forms the intermediate slit portion 10 facing the intermediate gradient portion 12 acts to block the condensed water, it is reliably discharged to the drain pan 4 without overflowing from the intermediate slit portion 10 to the leeward side. be able to. Further, since the wall surface 16 does not enter the region of the divided fin group 2, the coil ventilation air leakage due to the wind pressure can be prevented, and the flow of the condensed water is forcibly accelerated by the intermediate slope portion 12 on the downhill. While increasing the condensate discharge flow rate without increasing the opening area of the section 10, it is possible to minimize the leakage of the coil ventilation air and reduce the bypass factor, thereby preventing a reduction in performance. As a result, the condensed water generated on the leeward side of the intermediate slit portion 10 is all discharged to the drain pan 4 without being pushed down to the leeward side. On the leeward side, the condensed water generated only in the leeward side portion is drained. Since it is sufficient to discharge to 4, the amount of drainage is small. Moreover, since the intermediate slit portion 10 is continuous over both ends of the bottom portion 9, the movement of the condensed water to the leeward side can be more reliably blocked.
On the ventilation outlet side of the heat exchange coil, the condensate flow into the ventilation outlet side slit part 11 is urged by the ventilation outlet side slope part 13 which has become a downhill, and can be discharged reliably. Moreover, since the weir part 14 facing the ventilation outlet gradient part 13 acts to block the condensed water, it can be reliably discharged to the drain pan 4 without overflowing from the ventilation outlet side slit part 11 to the leeward side. Furthermore, the condensate discharge flow rate is increased without forcibly increasing the flow area of the condensed water in the downhill ventilation outlet side slope part 13 without increasing the opening area of the ventilation outlet side slit part 11, and the heat exchange coil. Can be reduced in size by preventing an increase in the ventilation direction A. Moreover, since the ventilation outlet side slit portion 11 is continuous over both ends of the bottom portion 9, the movement of the condensed water to the leeward side can be more reliably blocked.
Due to the synergistic effect of the intermediate slope portion 12, the intermediate slit portion 10, the wall surface 16 forming a part of the intermediate slit portion 10, the ventilation outlet side gradient portion 13, the ventilation outlet side slit portion 11 and the weir portion 14 as described above. Even when the coil passing wind speed is high, the condensed water is not accumulated at the ventilation outlet of the heat exchange coil, but is completely discharged to the drain pan 4 and is not scattered.

図１は本発明に係る熱交換コイルの空調機への使用例を示しており、５は送風機で、符号Ａで示す矢印は通風方向を示している。この熱交換コイルは、図２〜図６に示すように、楕円管から成る伝熱管群１と、この伝熱管群１を挿着する複数の分割フィン群２…と、伝熱管群１と分割フィン群２…を固定すると共に通風出入口に対応する部分を除いて分割フィン群２…を囲う枠体３と、を備えており、ドレンパン４の上に配設される。   FIG. 1 shows an example of use of a heat exchange coil according to the present invention for an air conditioner, 5 is a blower, and an arrow indicated by a symbol A indicates a ventilation direction. 2 to 6, the heat exchange coil includes a heat transfer tube group 1 made of an elliptic tube, a plurality of divided fin groups 2 to which the heat transfer tube group 1 is inserted, and a heat transfer tube group 1. A frame body 3 that fixes the fin groups 2 and surrounds the divided fin groups 2 except for a portion corresponding to the ventilation port, and is disposed on the drain pan 4.

複数の分割フィン群２…は通風方向Ａに所定間隔で離間させて複数の分割フィン群２…の間に凝縮水の風下側への移動を遮断するフィン間隙部７を、形成する。対向する２つの分割フィン群２、２の間隔Ｌはコイルが大型化しない範囲内で、できるだけ大きな空間をとる方がよく、例えば１０ｍｍ前後とするのが好ましい。   The plurality of divided fin groups 2 are spaced apart at a predetermined interval in the ventilation direction A, and a fin gap portion 7 that blocks movement of condensed water to the leeward side is formed between the plurality of divided fin groups 2. The distance L between the two divided fin groups 2 and 2 facing each other is preferably as large as possible within a range where the coil does not increase in size, and is preferably about 10 mm, for example.

分割フィン群２は、多数のプレートフィン６…を所定ピッチで平行に並設してなる。各プレートフィン６には親水性塗膜を形成するなどして親水性（水濡れ性）を付与し、冷却凝縮などによってフィンに付着した水が十分に薄い膜状となるようにする。各プレートフィン６には、フィン間隙部７に沿ってドレンパン方向に延びて風下側への凝縮水移動を妨げる小壁条部８を、形成する。小壁条部８は、止水効果及び排水効果を最良にするためにプレートフィン６の上端から下端まで連続して直線状に形成するのが好ましい。   The divided fin group 2 includes a large number of plate fins 6 arranged in parallel at a predetermined pitch. Each plate fin 6 is provided with hydrophilicity (water wettability) by forming a hydrophilic coating film or the like so that the water adhering to the fin by cooling condensation or the like becomes a sufficiently thin film. Each plate fin 6 is formed with a small wall strip portion 8 that extends in the drain pan direction along the fin gap portion 7 and prevents the condensed water movement to the leeward side. The small wall strip 8 is preferably formed in a straight line continuously from the upper end to the lower end of the plate fin 6 in order to optimize the water stop effect and the drainage effect.

伝熱管群１は、例えば通風方向に蛇行する多数の伝熱管から成る。各分割フィン群２に挿着する伝熱管群１の直管部の列数は1又は２とし、分割フィン群当たりに発生する凝縮水量を少なくする。伝熱管群１の両端の開口部には熱媒分流・合流用ヘッダが連通連結され、冷水や温水その他各種の熱媒が伝熱管群１を流れ、コイル通風空気を熱交換して冷風又は温風にする。伝熱管群１の直管部の径方向切断面は楕円形に形成し、その長径方向は通風方向Ａと略平行にして空気抵抗を小さくし圧力損失を防止する。なお、図示省略するが伝熱管群１の直管部の径方向切断面を円形とするも自由である。   The heat transfer tube group 1 is composed of, for example, a large number of heat transfer tubes meandering in the ventilation direction. The number of straight tube portions of the heat transfer tube group 1 to be inserted into each divided fin group 2 is 1 or 2, and the amount of condensed water generated per divided fin group is reduced. Headers for heat medium splitting / merging are connected to the openings at both ends of the heat transfer tube group 1, and cold water, hot water, and other various heat media flow through the heat transfer tube group 1 to exchange heat between the coil air and cool air or warm air. Make it wind. The radial cut surface of the straight pipe portion of the heat transfer tube group 1 is formed in an elliptical shape, and the major axis direction thereof is substantially parallel to the ventilation direction A to reduce air resistance and prevent pressure loss. Although not shown in the figure, the radial cut surface of the straight pipe portion of the heat transfer tube group 1 may be circular.

枠体３の部分でドレンパン４に臨む底部９には、すくなくとも最風下のフィン間隙部７とドレンパン４側とを連通させて凝縮水を排出する中間側スリット部１０と、最風下の分割フィン群２の通風出口とドレンパン４側とを連通させて凝縮水を排出する通風出口側スリット部１１と、を形成する。中間側スリット部１０はフィン間隙部７に沿って底部９の両端にわたって上下に形成すると共に通風出口側スリット部１０は最風下の分割フィン群２の通風出口に沿って底部９の両端にわたって上下に形成する。この中間側スリット部１０の間隔Ｈはフィン間隙部７の間隔Ｌ以下に設定し、コイル通風空気の外部への漏れを最小限にする。   At the bottom 9 facing the drain pan 4 in the frame 3 portion, at least the fin gap 7 at the coolest wind and the drain pan 4 side communicate with each other, the middle slit 10 for discharging condensed water, and the split fin group at the coolest wind. The ventilation outlet side slit part 11 which makes 2 ventilation outlets and the drain pan 4 side communicate, and discharges condensed water is formed. The intermediate slit portion 10 is formed vertically along both ends of the bottom portion 9 along the fin gap portion 7, and the ventilation outlet side slit portion 10 is vertically extended across both ends of the bottom portion 9 along the ventilation outlet of the split fin group 2 in the coolest wind. Form. The interval H of the intermediate slit portion 10 is set to be equal to or less than the interval L of the fin gap portion 7 to minimize leakage of the coil ventilation air to the outside.

枠体３の底部９には、風上側から中間側スリット部１０へ向かって下り凝縮水を中間側スリット部１０へ流れ込ませる中間側勾配部１２と、風上側から通風出口側スリット部１１へ向かって下り凝縮水を通風出口側スリット部１１へ流れ込ませる通風出口側勾配部１３と、中間側勾配部１２に対向し中間側スリット部１０の一部を成して分割フィン群２の領域内へ入り込まずに凝縮水の風下側への飛び出しを妨げる壁面１６と、通風出口側勾配部１３の風下側又は全体に所定間隔で対向させて凝縮水の風下側への飛び出しを妨げて通風出口側スリット部１１へ流れ込ませる堰部１４と、を形成する。 At the bottom 9 of the frame body 3, an intermediate gradient portion 12 that causes the condensed water to flow from the windward side toward the intermediate slit portion 10 and flow into the intermediate slit portion 10, and from the windward side toward the ventilation outlet side slit portion 11. Into the region of the divided fin group 2 by forming a part of the intermediate slit portion 10 facing the intermediate gradient portion 12 and the intermediate outlet gradient portion 13 . The wall 16 prevents the condensate from jumping to the leeward side without entering, and the vent outlet side slit is made to face the leeward side or the whole of the ventilation outlet side slope portion 13 at a predetermined interval to prevent the condensed water from jumping to the leeward side. And a weir portion 14 that is caused to flow into the portion 11.

本発明の熱交換コイルでは、プレートフィン６で凝縮水が薄い水膜となり風圧を受けにくくなるため、コイル通風空気が高風速となっても、凝縮水が風下側に移動しにくくなって下方へ流れ落ち、もしも凝縮水が移動しても、小壁条部８にてそれ以上風下側へ移動するのが阻止され（図６参照）、小壁条部８に沿って枠体３の底部９に流下させることができる。しかも、各分割フィン群２の列数は１又は２としているので、分割フィン群当たりの凝縮水量が少なく、水厚・水滴が粗大となるのを防止でき、一層風圧を受けにくくなる。したがって分割フィン群２から風下側へ水が飛び出すことがなく、仮に分割フィン群２から風下側へ水が飛び出すことがあったとしても、飛散量は極僅かで、フィン間隙部７に落下して水切りされるので、風下側の分割フィン群２に水が飛び移ることはない。   In the heat exchange coil of the present invention, the condensed water becomes a thin water film at the plate fins 6 and is difficult to receive wind pressure. Therefore, even if the coil ventilation air has a high wind speed, it is difficult for the condensed water to move to the leeward side. Even if the condensed water moves down, the small wall strip 8 is prevented from moving further to the leeward side (see FIG. 6), and is moved along the small wall strip 8 to the bottom 9 of the frame 3. Can flow down. In addition, since the number of rows of each divided fin group 2 is 1 or 2, the amount of condensed water per divided fin group is small, the water thickness and water droplets can be prevented from becoming coarse, and the wind pressure is further less likely to be received. Therefore, even if water does not flow out from the divided fin group 2 to the leeward side and water may flow out from the divided fin group 2 to the leeward side, the amount of scattering is very small, and it falls into the fin gap 7. Since water is drained, water does not jump into the split fin group 2 on the leeward side.

熱交換コイルの中間側では、枠体３の底部９に流れ落ちた凝縮水が中間側勾配部１２を下って中間側スリット部１０へ流れ込みドレンパン４に排出される。このとき、中間側勾配部１２で凝縮水の流れが速まって排出流量が増え、中間側勾配部１２に対向する中間側スリット部１０を成す壁面１６で凝縮水の風下側への移動が阻止されて、ドレンパン４に確実に排出され、コイル通風空気の漏れも少なくなる。しかも、中間側スリット部１０は底部９の両端にわたって連続しているので、凝縮水の風下側への移動を一層確実に遮断できる。   On the intermediate side of the heat exchange coil, the condensed water that has flowed down to the bottom portion 9 of the frame body 3 flows down the intermediate gradient portion 12 to the intermediate slit portion 10 and is discharged to the drain pan 4. At this time, the flow of the condensed water is accelerated at the intermediate gradient portion 12 and the discharge flow rate is increased, and the condensate is prevented from moving to the leeward side at the wall surface 16 that forms the intermediate slit portion 10 facing the intermediate gradient portion 12. Thus, the gas is reliably discharged to the drain pan 4 and the leakage of the coil ventilation air is reduced. Moreover, since the intermediate slit portion 10 is continuous over both ends of the bottom portion 9, the movement of the condensed water to the leeward side can be more reliably blocked.

同様に、熱交換コイルの通風出口側では、枠体３の底部９に流れ落ちた凝縮水が通風出口側勾配部１３を下って通風出口側スリット部１１へ流れ込みドレンパン４に排出される。このとき、通風出口側勾配部１３で凝縮水の流れが速まって排出流量が増え、堰部１４で凝縮水の風下側への移動が阻止されて、ドレンパン４に確実に排出される。しかも、通風出口側スリット部１１は底部９の両端にわたって連続しているので、凝縮水の風下側への移動を一層確実に遮断できる。   Similarly, on the ventilation outlet side of the heat exchange coil, the condensed water that has flowed down to the bottom portion 9 of the frame body 3 flows down the ventilation outlet side slope portion 13 into the ventilation outlet side slit portion 11 and is discharged to the drain pan 4. At this time, the flow of the condensed water is accelerated at the ventilation outlet side slope portion 13 and the discharge flow rate is increased, and the weir portion 14 is prevented from moving to the leeward side of the condensed water, and is reliably discharged to the drain pan 4. Moreover, since the ventilation outlet side slit portion 11 is continuous over both ends of the bottom portion 9, the movement of the condensed water to the leeward side can be more reliably blocked.

なお、本発明は上述の実施例に限定されず、本発明の要旨を逸脱しない範囲で設計変更自由である。それぞれ図示省略するが、枠体３の底部９に、最風下とそれ以外の適宜のフィン間隙部７とドレンパン４側とを連通させて凝縮水を排出する中間側スリット部１０を、複数形成し、風上側から各中間側スリット部１０へ向かって下る中間側勾配部１２を、複数形成するも自由である。さらに、図例では、分割フィン群２…は３つに分割しているが、２つ又は４つ以上に分割してもよく、各分割フィン群２における直管部挿着列数及び段数、プレートフィン数及びピッチの増減は自由である。また、小壁条部８は、風下側への水移動を妨げることができればよく、その断面形状や数、位置及び高さその他形状構造の変更は自由である。   In addition, this invention is not limited to the above-mentioned Example, A design change is freely possible in the range which does not deviate from the summary of this invention. Although not shown in the drawings, a plurality of intermediate slit portions 10 are formed in the bottom portion 9 of the frame body 3 so as to allow the leeward wind and other appropriate fin gap portions 7 and the drain pan 4 side to communicate with each other to discharge condensed water. It is also free to form a plurality of intermediate side gradient portions 12 that descend from the windward side toward the respective intermediate slit portions 10. Further, in the illustrated example, the divided fin groups 2 are divided into three, but may be divided into two or four or more, the number of straight tube portion insertion rows and the number of stages in each divided fin group 2, The number of plate fins and pitch can be increased or decreased. Moreover, the small wall strip part 8 should just be able to prevent the water movement to the leeward side, and change of the cross-sectional shape, the number, a position, height, and other shape structures is free.

本発明を空調機に使用した例を示す簡略図。The simplification figure which shows the example which used this invention for the air conditioner. 本発明の斜視図。The perspective view of this invention. 本発明の要部斜視図。The principal part perspective view of this invention. 本発明の側面断面図。The side sectional view of the present invention. 本発明の平面断面図。The plane sectional view of the present invention. プレートフィンの要部拡大断面図。The principal part expanded sectional view of a plate fin.

符号の説明Explanation of symbols

１ 伝熱管群
２ 分割フィン群
３ 枠体
４ ドレンパン
６ プレートフィン
７ フィン間隙部
８ 小壁条部
９ 底部
１０ 中間側スリット部
１１ 通風出口側スリット部
１２ 中間側勾配部
１３ 通風出口側勾配部
１４ 堰部
Ａ 通風方向 DESCRIPTION OF SYMBOLS 1 Heat-transfer tube group 2 Divided fin group 3 Frame body 4 Drain pan 6 Plate fin 7 Fin clearance part 8 Small wall strip part 9 Bottom part 10 Middle side slit part 11 Ventilation exit side slit part 12 Middle side inclination part 13 Ventilation exit side inclination part 14 Weir part A Ventilation direction

Claims (1)

ドレンパン４の上に配設する熱交換コイルであって、伝熱管群１と、この伝熱管群１を挿着する複数の分割フィン群２…と、前記伝熱管群１と前記分割フィン群２…を固定する枠体３と、を備え、複数の前記分割フィン群２…を通風方向Ａに所定間隔で離間させてフィン間隙部７を、形成し、前記分割フィン群２…の各プレートフィン６に、風下側への凝縮水移動を妨げる小壁条部８を、形成し、前記各分割フィン群２に挿着する前記伝熱管群１の直管部の列数は１又は２とし、前記枠体３の部分で前記ドレンパン４に臨む底部９に、すくなくとも最風下の前記フィン間隙部７と前記ドレンパン４側とを連通させて凝縮水を排出する中間側スリット部１０と、最風下の前記分割フィン群２の通風出口と前記ドレンパン４側とを連通させて凝縮水を排出する通風出口側スリット部１１と、を形成し、前記中間側スリット部１０は前記フィン間隙部７に沿って前記底部９の両端にわたって上下に形成すると共に前記通風出口側スリット部１０は最風下の前記分割フィン群２の通風出口に沿って前記底部９の両端にわたって上下に形成し、前記枠体３の前記底部９に、風上側から前記中間側スリット部１０へ向かって下り凝縮水を前記中間側スリット部１０へ流れ込ませる中間側勾配部１２と、風上側から前記通風出口側スリット部１１へ向かって下り凝縮水を前記通風出口側スリット部１１へ流れ込ませる通風出口側勾配部１３と、前記中間側勾配部１２に対向し前記中間側スリット部１０の一部を成して前記分割フィン群２の領域内へ入り込まずに凝縮水の風下側への飛び出しを妨げる壁面１６と、前記通風出口側勾配部１３に所定間隔で対向させて凝縮水の風下側への飛び出しを妨げて前記通風出口側スリット部１１へ流れ込ませる堰部１４と、を形成したことを特徴とする熱交換コイル。 A heat exchange coil disposed on the drain pan 4, a heat transfer tube group 1, a plurality of divided fin groups 2 to which the heat transfer tube group 1 is inserted, the heat transfer tube group 1 and the divided fin group 2. A plurality of the divided fin groups 2 that are spaced apart from each other in the ventilation direction A at a predetermined interval to form fin gap portions 7, and each plate fin of the divided fin group 2. 6, the small wall strip portion 8 that prevents the condensed water movement to the leeward side is formed, and the number of rows of the straight pipe portions of the heat transfer tube group 1 to be inserted into the divided fin groups 2 is 1 or 2, An intermediate slit portion 10 for discharging condensed water by communicating the fin gap portion 7 at the lowest wind and the drain pan 4 side at the bottom 9 facing the drain pan 4 at the portion of the frame 3 , Condensation by allowing the ventilation outlet of the divided fin group 2 and the drain pan 4 side to communicate with each other The unit and the air outlet slit 11 for discharging, to form the said ventilating outlet slit portion 10 together with the intermediate side slits 10 are formed above and below across both ends of the bottom 9 along the fin gap 7 top Condensed water is formed on the bottom 9 of the frame 3 from the windward side toward the intermediate slit 10 on the bottom 9 of the frame 9 along the ventilation outlet of the split fin group 2 on the leeward side. An intermediate gradient portion 12 that flows into the intermediate slit portion 10, and a ventilation outlet side gradient portion 13 that flows down condensed water from the windward side toward the ventilation outlet side slit portion 11 into the ventilation outlet side slit portion 11; Further, the condensate is prevented from jumping to the leeward side without facing into the region of the divided fin group 2 by forming a part of the intermediate slit portion 10 facing the intermediate gradient portion 12. Wherein the wall surface 16, and the air outlet side inclined portion 13 weir 14 to flow into the said ventilating outlet slit portion 11 prevents the protrusion of the leeward side of the condensed water is opposed at a predetermined interval, in that the formation Heat exchange coil.
JP2007150113A 2007-06-06 2007-06-06 Heat exchange coil Active JP4376276B2 (en)

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JP2007150113A JP4376276B2 (en) 2007-06-06 2007-06-06 Heat exchange coil
KR1020070077781A KR100859932B1 (en) 2007-06-06 2007-08-02 Heat exchange coil and air conditioner
CN2007101497011A CN101319810B (en) 2007-06-06 2007-08-31 Heat exchange coil and air conditioner

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JP6357642B2 (en) * 2014-02-10 2018-07-18 パナソニックＩｐマネジメント株式会社 Range food
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KR101671105B1 (en) * 2015-04-14 2016-10-31 엘지전자 주식회사 dehumidifier
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KR101729107B1 (en) * 2015-08-04 2017-04-21 엘지전자 주식회사 Clothes treating apparatus
CN106288528A (en) * 2016-08-15 2017-01-04 安徽天祥空调科技有限公司 A kind of bilateral vaporizer and manufacture method thereof
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CN106247461A (en) * 2016-09-30 2016-12-21 美的集团武汉制冷设备有限公司 Air conditioner room unit and air-conditioner
WO2018066123A1 (en) * 2016-10-07 2018-04-12 三菱電機株式会社 Heat exchanger
JP6664712B2 (en) * 2018-08-23 2020-03-13 清水建設株式会社 Air conditioning system
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