JPH10170030A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH10170030A JPH10170030A JP32944696A JP32944696A JPH10170030A JP H10170030 A JPH10170030 A JP H10170030A JP 32944696 A JP32944696 A JP 32944696A JP 32944696 A JP32944696 A JP 32944696A JP H10170030 A JPH10170030 A JP H10170030A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- partition
- air introduction
- air conditioner
- passage
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空気調和機の凝縮
器としての空気側熱交換器の構造に関する。The present invention relates to a structure of an air-side heat exchanger as a condenser of an air conditioner.
【０００２】[0002]
【従来の技術】特公平７−７４６９９号公報に記載の空
気調和機は、互いに下辺を近接させ、上辺を離間させて
Ｖ字状に組み合わせた前側熱交換器及び後側熱交換器の
一対と、Ｖ字状の熱交換器の上に各上辺をまたぐように
配設された送風機とからなる空気側熱交換器を備えてい
る。この空気側外熱交換器では、Ｖ字状熱交換器上の送
風機が前後外側から前側熱交換器及び後側熱交換器を通
して空気を吸い込む。このように送風機が上に配設され
ているため、各熱交換器の各部分から吸い込まれる空気
は送風機に向かい直線的に流れ、熱交換器下部ではその
上部に比べ、熱交換器面に対し垂直に流れ込む風速が小
さくなり、この不均一な風速のために熱通過率が低下す
る。また、風速が上下で不均一で局所的に速くなるた
め、異常振動、異常騒音が発生する恐れがあった。2. Description of the Related Art An air conditioner described in Japanese Patent Publication No. 7-74699 has a pair of a front heat exchanger and a rear heat exchanger in which a lower side is brought close to each other and an upper side is separated to form a V-shape. , And an air-side heat exchanger including a blower disposed on the V-shaped heat exchanger so as to straddle each upper side. In this air side external heat exchanger, the blower on the V-shaped heat exchanger sucks air from the front and rear outer sides through the front heat exchanger and the rear heat exchanger. Since the blower is disposed above, the air sucked from each part of each heat exchanger flows linearly toward the blower, and the lower part of the heat exchanger is closer to the heat exchanger surface than the upper part. The vertically flowing wind speed is reduced, and the heat transfer rate is reduced due to the uneven wind speed. In addition, since the wind speed is non-uniform in the vertical direction and locally high, abnormal vibration and abnormal noise may occur.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の空気調和機
では、空気側熱交換器上部に送風機が配設されているた
め、空気側熱交換器に吸い込まれる空気はファンに向か
い直線的に流れ、空気側熱交換器下部は空気側熱交換器
上部に比べ、空気側熱交換器の面に対し垂直に流れ込む
風速が小さく、熱通過率が低下、また、風速分布が上下
でアンバランスのため、異常振動、異常騒音が発生する
問題点があった。In the conventional air conditioner, since the blower is disposed above the air-side heat exchanger, the air sucked into the air-side heat exchanger flows linearly toward the fan. The lower part of the air-side heat exchanger has a lower wind velocity that flows perpendicular to the surface of the air-side heat exchanger than the upper part of the air-side heat exchanger, lowering the heat transfer rate, and the air velocity distribution is unbalanced in the vertical direction However, there is a problem that abnormal vibration and abnormal noise are generated.
【０００４】本発明は、上記問題を解決するためになさ
れたものであって、凝縮器としてＶ字状熱交換器を有す
る空気調和機において、熱交換器の上下にわたって熱交
換器の空熱面に対して垂直に流れ込む風速の均一化を図
ることにより、熱交換率を向上させることができ、そし
て異常振動、異常騒音の発生を防止できる空気調和機を
提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. In an air conditioner having a V-shaped heat exchanger as a condenser, the air heat surface of the heat exchanger extends above and below the heat exchanger. An object of the present invention is to provide an air conditioner that can improve the heat exchange rate by preventing the occurrence of abnormal vibration and noise by making the wind speed flowing perpendicular to the air flow uniform.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の第１の空気調和機は、圧縮機、凝縮器、蒸
発器、減圧装置を備えた空気調和機において、凝縮器
は、前後に配置した２枚の熱交換器を互いにその下辺を
近接させ上辺を離間させて組み合わせたＶ字状の熱交換
器ユニットと、この熱交換器ユニットの上にその上辺を
またいで配置された送風機と、熱交換器ユニットの前端
に接して前側を覆う前面カバーと熱交換器ユニットの後
端に接して後側を覆う後面カバーと、熱交換器ユニット
の下端に接して下側を覆う底壁と、熱交換器ユニットの
両側面を覆う逆三角形の側面カバーとから構成し、前面
カバー、熱交換器ユニット及び底壁により区画された三
角形断面の通路、及び前面カバー、熱交換器ユニット、
後面カバー及び底壁により区画された三角形断面の通路
をそれぞれ外気導入路とし、かつそれぞれの外気導入路
に隔壁を設けて上下複数段に分割したことを特徴とす
る。In order to achieve the above object, a first air conditioner of the present invention is an air conditioner provided with a compressor, a condenser, an evaporator, and a pressure reducing device. A V-shaped heat exchanger unit in which two heat exchangers arranged in front and rear are combined with their lower sides close to each other and their upper sides separated from each other; and a V-shaped heat exchanger unit is disposed over this heat exchanger unit and straddling the upper side. Blower, a front cover that covers the front side in contact with the front end of the heat exchanger unit, a rear cover that covers the rear side in contact with the rear end of the heat exchanger unit, and covers the lower side in contact with the lower end of the heat exchanger unit A bottom wall, an inverted triangular side cover covering both side surfaces of the heat exchanger unit, a front cover, a passage having a triangular cross section defined by the heat exchanger unit and the bottom wall, and a front cover, a heat exchanger unit ,
A passage having a triangular cross section defined by the rear cover and the bottom wall is defined as an outside air introduction passage, and a partition is provided in each outside air introduction passage and divided into a plurality of upper and lower stages.
【０００６】また、本発明の第２の空気調和機は、圧縮
機、凝縮器、蒸発器、減圧装置を備えた空気調和機にお
いて、凝縮器は、前後に配置した２枚の熱交換器を互い
にその下辺を近接させ上辺を離間させて組み合わせた複
数組のＶ字状熱交換器ユニットを前後に並べた熱交換部
と、Ｖ字状熱交換器ユニットそれぞれの上に設置された
送風機と、熱交換部の前端から下方に延びる前面カバー
と、熱交換部の後端から下方に延びる後面カバーと、熱
交換部の下端に接して下側を覆う底壁と、各Ｖ字状熱交
換器ユニットの両側面を覆う逆三角形の側面カバーとか
ら構成し、前面カバー、熱交換部及び底壁により区画さ
れた三角形断面の通路、隣合うＶ字状熱交換器ユニット
と底壁により区画された２等辺三角形断面の通路、及び
熱交換部、後カバー及び底壁により区画された三角形断
面の通路をそれぞれ外気導入路とし、かつそれぞれの外
気導入路に隔壁を設けて上下複数段に分割したことを特
徴とする。A second air conditioner of the present invention is an air conditioner provided with a compressor, a condenser, an evaporator, and a decompression device, wherein the condenser includes two heat exchangers arranged in front and behind. A heat exchange unit in which a plurality of sets of V-shaped heat exchanger units combined with their lower sides approaching each other and their upper sides separated from each other are arranged side by side, and a blower installed on each of the V-shaped heat exchanger units, A front cover extending downward from the front end of the heat exchange unit, a rear cover extending downward from the rear end of the heat exchange unit, a bottom wall in contact with the lower end of the heat exchange unit and covering the lower side, and each V-shaped heat exchanger It consists of an inverted triangular side cover that covers both sides of the unit, and has a triangular cross section defined by a front cover, a heat exchange section and a bottom wall, and is defined by an adjacent V-shaped heat exchanger unit and a bottom wall. Passage of isosceles triangular section, heat exchange part, rear cover And bottom wall each passage of triangular cross-section which is partitioned by the outside air introduction path by, and is characterized in that it is vertically divided in a plurality of stages the partition wall provided in each of the air introduction passage.
【０００７】上記第１及び第２の空気調和機において、
隔壁は外気導入路を上下２段に分割するように配置する
のがよい。２段に分割することにより、上段の外気導入
路に導入された外気は熱交換器上部に、下段の外気導入
路に導入された空気は熱交換器下段にそれぞれ流れ込む
ので、隔壁のない場合のように空気流れが熱交換器の上
部側に偏ることを抑制でき、上下にわたって風速の均等
化を図ることができる。より好ましくは、上段外気導入
路及び下段外気導入路それぞれの断面積を同等にするの
がよ。In the first and second air conditioners,
The partition walls are preferably arranged so as to divide the outside air introduction passage into two upper and lower stages. By dividing into two stages, the outside air introduced into the upper outside air introduction passage flows into the upper part of the heat exchanger, and the air introduced into the lower outside air introduction passage flows into the lower stage of the heat exchanger. As described above, it is possible to suppress the air flow from being biased toward the upper side of the heat exchanger, and to equalize the wind speed vertically. More preferably, the cross-sectional area of each of the upper-stage outside-air introduction passage and the lower-stage outside-air introduction passage is made equal.
【０００８】また隔壁の端部で熱交換器に接する側に上
下に貫通する隙間を設けてもよい。この隙間は隔壁直近
下における比較的風速の速い空気流れを、隔壁直近上に
おける比較的風速の遅い速い空気流れに合流させ、熱交
換器上下にわたる風速の均等化をさらに図ることができ
る[0008] A gap may be provided at the end of the partition wall, which penetrates vertically, on the side in contact with the heat exchanger. This gap joins the relatively fast wind current immediately below the partition with the relatively slow fast air flow immediately above the partition to further equalize the wind speed over the heat exchanger.
【０００９】[0009]
《実施の形態１》図１は、本発明の実施の形態１である
空気調和機の構造を示す斜視図である。この空気調和機
は、上部に空気側熱交換器室を、下部には機械室を設け
ており、空気側熱交換器室には、Ｖ字状に組み合わせて
一対となる熱交換器２、２の２組を前後(図では左右)に
並べ、さらに各Ｖ字状の熱交換器２、２上に送風機４を
設置しており、一方、機械室には圧縮機１、減圧装置
（図示なし）、水冷却器３及び電気品箱５を設置してい
る。そして空気側熱交換器室と機械室はドレンパン６に
より上下に分割されている。Ｖ字状の熱交換器は互いに
下辺を近接させ、上辺を離間させて組み合わされてな
り、側面からみてＶ字状となり、送風機４は一対の熱交
換器２、２の各上辺をまたぐように横方向に２基設置さ
れている。Embodiment 1 FIG. 1 is a perspective view showing a structure of an air conditioner according to Embodiment 1 of the present invention. This air conditioner has an air-side heat exchanger room at the top and a machine room at the bottom, and the air-side heat exchanger room has a pair of heat exchangers 2 and 2 combined in a V-shape. Are arranged back and forth (right and left in the figure), and a blower 4 is installed on each of the V-shaped heat exchangers 2 and 2. On the other hand, a compressor 1 and a decompression device (not shown) are provided in the machine room. ), A water cooler 3 and an electric component box 5 are installed. The air-side heat exchanger room and the machine room are vertically divided by a drain pan 6. The V-shaped heat exchangers are combined such that the lower sides are close to each other and the upper sides are separated from each other, forming a V-shape when viewed from the side, and the blower 4 spans the upper sides of the pair of heat exchangers 2 and 2. Two are installed in the horizontal direction.
【００１０】空気側熱交換器室は前後にカバー１１、ま
た各Ｖ字状の熱交換器２、２の側面（図では正面と背
面）にふさぎ板１２を有している。前側カバー１１と、
２組のうち前側に位置するＶ字状の熱交換器２、２との
間に形成される三角形断面の空間と、２組のＶ字状の熱
交換器２、２間に形成される二等辺三角形の空間と、２
組のうち後側に位置するＶ字状の熱交換器２、２と後側
カバー１２の間に形成される三角形断面の空間とを、そ
れぞれ前側、中間、後側の外気導入路としている。さら
に各外気導入路にはそれぞれ外気導入路を上下に分割す
る隔壁１３、１４、１５を設けている。以後、隔壁１３
により上下分割された外気導入路を前・上段外気導入路
１６、前・下段外気導入路１７といい、隔壁１４により
上下分割された外気導入路を中・上段外気導入路１８、
中・下段外気導入路１９といい、隔壁１５により上下分
割された外気導入路を後・上段外気導入路２０、後・下
段外気導入路２１ということにする。The air-side heat exchanger chamber has front and rear covers 11, and cover plates 12 on the side surfaces (front and back in the figure) of each of the V-shaped heat exchangers 2, 2. A front cover 11,
A triangular section space formed between the two sets of V-shaped heat exchangers 2 and 2 located on the front side, and two spaces formed between the two sets of V-shaped heat exchangers 2 and 2 Equilateral triangular space and 2
The triangular cross-section spaces formed between the V-shaped heat exchangers 2 and 2 located on the rear side of the set and the rear cover 12 are used as front, middle and rear outside air introduction paths, respectively. Further, each of the outside air introduction paths is provided with partition walls 13, 14, and 15 for vertically dividing the outside air introduction path. Thereafter, the partition 13
The outside air introduction passage divided vertically by is referred to as the front / upper outside air introduction passage 16 and the front / lower outside air introduction passage 17, and the outside air introduction passage divided vertically by the partition wall 14 is the middle / upper outside air introduction passage 18,
The outside air introduction passages which are divided into upper and lower parts by the partition 15 are referred to as a rear / upper outside air introduction passage 20 and a rear / lower outside air introduction passage 21.
【００１１】上記のように構成された空気調和機の冷凍
サイクルは、圧縮機１により圧縮された高温・高圧ガス
冷媒は、Ｖ字状の空気側熱交換器２、…２(凝縮器)に分
流され、送風機４により導かれた空気と熱交換し、高温
・高圧液冷媒となり、そしてこの高温・高圧液冷媒は、
減圧装置により減圧され、水冷却器３(蒸発器)により水
と熱交換し低温・低圧ガス冷媒となり圧縮機１に戻る冷
凍サイクルである。In the refrigeration cycle of the air conditioner configured as described above, the high-temperature and high-pressure gas refrigerant compressed by the compressor 1 is transferred to a V-shaped air-side heat exchanger 2,... 2 (condenser). It is diverted and exchanges heat with the air guided by the blower 4 to become a high-temperature and high-pressure liquid refrigerant.
This is a refrigeration cycle in which the pressure is reduced by a pressure reducing device, heat exchange is performed with water by a water cooler 3 (evaporator), and a low-temperature low-pressure gas refrigerant is returned to the compressor 1.
【００１２】図２は、実施の形態１に係る空気側熱交換
器室における空気の流れを示す。外気は、前・上段外気
導入路１６、前・下段外気導入路１７、中・上段外気導
入路１８、中・下段外気導入路１９、後・上段外気導入
路２０、後・下段外気導入路２１に入り、各外気導入路
１６〜２１に接するＶ字状熱交換器２、２の部位を通過
し、Ｖ字状熱交換器２、２が形成する内部空間を上昇
し、そして送風機４を通じて、空気調和機上方へ吹き出
される。ところで、前・上段及び前・下段の外気導入路
１６、１７は前隔壁１３により仕切られているために、
前・上段外気導入路１６より吸い込まれた空気は、前隔
壁１３より上の熱交換器２の部位を通過し、また前・下
段外気導入路１７より吸い込まれた空気は、前隔壁１３
より下の熱交換器２の部位を通過し、上の送風機４に導
かれる。同様に、後・上段外気導入路２０より吸い込ま
れた空気は、後隔壁１５より上の熱交換器２の部位を通
過し、また後・下段外気導入路２１より吸い込まれた空
気は後隔壁１５より下の熱交換器２の部位を各々通過
し、そして上の送風機４に導かれる。また、中・上段及
び中・下段の外気導入路１８、１９は、左右両側に熱交
換器２を配設しており、左右各々のＶ字状熱交換器２、
２上部に配設している送風機４の風量が同一のため、左
右の熱交換器２の空熱面に対し垂直に流れる風速は同一
となる。中・上段外気導入路１８に吸い込まれた空気は
中隔壁１４より上の熱交換器２の部位を通過し、中・下
段外気導入路１９に吸い込まれた空気は中隔壁１４より
下の熱交換器２の部位を通過し、そして上の送風機４に
導かれる。FIG. 2 shows the flow of air in the air-side heat exchanger chamber according to the first embodiment. The outside air includes a front / upper outside air introduction path 16, a front / lower outside air introduction path 17, a middle / upper outside air introduction path 18, a middle / lower outside air introduction path 19, a rear / upper outside air introduction path 20, and a rear / lower outside air introduction path 21. And passes through the portions of the V-shaped heat exchangers 2, 2 in contact with the respective outside air introduction passages 16 to 21, ascends the internal space formed by the V-shaped heat exchangers 2, 2, and It is blown out above the air conditioner. By the way, since the front / upper stage and the front / lower outside air introduction passages 16 and 17 are separated by the front partition 13,
The air sucked in from the front / upper outside air introduction passage 16 passes through the portion of the heat exchanger 2 above the front bulkhead 13, and the air sucked in from the front / bottom outside air introduction passage 17 is
It passes through the lower part of the heat exchanger 2 and is led to the upper blower 4. Similarly, the air sucked from the rear / upper outside air introduction passage 20 passes through the portion of the heat exchanger 2 above the rear bulkhead 15, and the air sucked from the rear / lower outside air introduction passage 21 is Each passes through the sections of the lower heat exchanger 2 and is led to the upper blower 4. The middle / upper and middle / lower outside air introduction passages 18 and 19 are provided with the heat exchangers 2 on both the left and right sides, respectively.
Since the air volume of the blowers 4 arranged at the upper part of the two heat exchangers is the same, the wind speed flowing perpendicularly to the air heating surfaces of the left and right heat exchangers 2 is the same. The air sucked into the middle / upper outside air introduction passage 18 passes through the portion of the heat exchanger 2 above the middle partition 14, and the air sucked into the middle / lower outside air introduction passage 19 exchanges heat below the middle partition 14. It passes through the section of the vessel 2 and is led to the blower 4 above.
【００１３】外気導入路を前隔壁１３、中隔壁１４、後
隔壁１５のない構造とした場合は、熱交換器２の空熱面
に対し垂直に流れる空気は、熱交換器２の下部にいくに
従い低下するが、本発明では、前隔壁１３、中隔壁１
４、後隔壁１５により吸い込まれる空気の流れを、熱交
換器２の空熱面方向に変えることにより、従来の課題で
あった熱交換器２下部での面風速の低下を防止でき、効
率よい熱交換が可能となり、熱通過率の増加及び有効に
伝熱面積を使うことが可能となる。When the outside air introduction path has a structure without the front bulkhead 13, the middle bulkhead 14, and the rear bulkhead 15, the air flowing perpendicularly to the aerothermal surface of the heat exchanger 2 goes to the lower part of the heat exchanger 2. However, in the present invention, the front partition 13 and the middle partition 1
4. By changing the flow of the air sucked in by the rear partition wall 15 in the direction of the air-heating surface of the heat exchanger 2, it is possible to prevent a decrease in the surface wind speed at the lower portion of the heat exchanger 2, which is a conventional problem, and to be efficient Heat exchange becomes possible, and the heat transfer rate can be increased and the heat transfer area can be used effectively.
【００１４】また、外気を導入する各通路に前隔壁１
３、中隔壁１４、後隔壁１５を設けることにより、前・
下段、中・下段及び後・下段の外気導入路１７、１９、
２１それぞれに吸い込まれた空気は、各隔壁１３、１
４、１５より上側の熱交換器２には吸い込まれない。従
って、図５において実施の形態１で示すように、前隔壁
１３、中隔壁１４、後隔壁１５より上部の熱交換器２の
風速は、前・下段、中・下段、後・下段の外気導入路１
７、１９、２１の空気吸い込み室からの空気の流れが遮
断されるため、隔壁１３、１４、１５がない場合と比較
すると、全体に風速は低下し、逆に前隔壁１３、中隔壁
１４、後隔壁１５より下部の熱交換器２の風速は、前・
下段、中・下段、後・下段の外気導入路１７、１９、２
１の空気吸い込み室からの空気がすべて通過し、熱交換
器２の空熱面方向に空気の流れが変わるため、全体に熱
交換器２の空熱面に垂直に流れる風速は上昇し、熱交換
器２下部の風速低下が防止でき、風速分布の均一化を図
ることが可能となり、したがって風速分布の上下アンバ
ランスに起因する異常振動、異常騒音の発生を防止でき
る。In addition, a front partition 1 is provided in each passage for introducing outside air.
3, by providing the inner partition 14 and the rear partition 15,
Lower, middle / lower, and rear / lower external air introduction paths 17, 19,
The air sucked into each of the partitions 21,
The heat is not sucked into the heat exchanger 2 above 4 and 15. Therefore, as shown in Embodiment 1 in FIG. 5, the wind speed of the heat exchanger 2 above the front partition 13, the middle partition 14, and the rear partition 15 is the front / lower, middle / lower, and rear / lower external air introduction. Road 1
Since the flow of air from the air suction chambers 7, 19, and 21 is cut off, the wind speed is reduced as a whole as compared with the case where there are no partitions 13, 14, 15, and conversely, the front partition 13, the middle partition 14, The wind speed of the heat exchanger 2 below the rear bulkhead 15 is
Lower, middle / lower, rear / lower external air introduction passages 17, 19, 2
Since all the air from the air suction chamber 1 passes through, and the air flow changes in the direction of the air heat surface of the heat exchanger 2, the wind speed flowing vertically to the air heat surface of the heat exchanger 2 as a whole increases, The lowering of the wind speed at the lower part of the exchanger 2 can be prevented, and the wind speed distribution can be made uniform. Therefore, the occurrence of abnormal vibration and abnormal noise due to the vertical imbalance of the wind speed distribution can be prevented.
【００１５】ところで、図２に示す前隔壁１３、中隔壁
１４、後隔壁１５を設けていないＶ字状熱交換器２の場
合は、熱交換器２に流入する空気は、熱交換器２の上方
に設置された送風機４により吸引されて導かれるため、
図３に示すように、熱交換器２の空熱面に対し垂直に流
れる風速は、送風機４に近い熱交換器２上部で速く、下
部にいくに従い風速は遅くなる。By the way, in the case of the V-shaped heat exchanger 2 shown in FIG. 2 where the front partition 13, the middle partition 14, and the rear partition 15 are not provided, the air flowing into the heat exchanger 2 Because it is sucked and guided by the blower 4 installed above,
As shown in FIG. 3, the wind speed flowing perpendicularly to the aerothermic surface of the heat exchanger 2 is high in the upper part of the heat exchanger 2 close to the blower 4, and the wind speed becomes lower toward the lower part.
【００１６】なお、この実施の形態１は、Ｖ字状の熱交
換器を２組、各組に送風機を２基設けているが、Ｖ字状
の熱交換器の組数及び送風機の数は熱交換器の容量の大
きさに応じて適宜増減して決めるもので、例えばＶ字状
の熱交換器の組数が１組、送風機の数が１基で、空気調
和機を構成してもよい。In the first embodiment, two sets of V-shaped heat exchangers are provided and two fans are provided in each set. However, the number of sets of the V-shaped heat exchangers and the number of blowers are as follows. It is determined by appropriately increasing or decreasing according to the size of the capacity of the heat exchanger. For example, even if an air conditioner is configured with one set of V-shaped heat exchangers and one blower, Good.
【００１７】《実施の形態２》図４は本発明の実施の形
態２にかかる空気側熱交換器の断面構造を示す図であ
る。本実施の形態は、空気側熱交換器の外気導入路に設
けた隔壁の形状が実施の形態１のそれと相違することを
除いて、実施の形態１と同じである。実施の形態２にお
ける前隔壁２８、中隔壁２９、後隔壁３０は、図４に示
すように、それぞれＶ字状熱交換器２と近接する端部全
線にわたって隙間２７を設けている。実施の形態１のよ
うに、隔壁（１３、１４、１５）を設けて外気導入路を
上下に分割することにより、熱交換器２の空熱面に流れ
込む風速を全体的には上下で均等化を図ることができる
が、さらに局部的には、図５の破線でみられるように、
前隔壁１３、中隔壁１４、後隔壁１５の直近上部で風速
が低下することが分かる。この風速低下を抑えるため、
図４に示すように、前隔壁２８、中隔壁２９、後隔壁３
０と、熱交換器２との近接箇所にそれぞれ隙間２７を設
けて、隔壁２８、２９、３０それぞれの直近下部の速い
風速を、隔壁２８、２９、３０それぞれの直近上部の風
速が低い部分へ隙間２７を通じてバイパスさせることに
より、図５において一点鎖線（実施の形態２）で示すよ
うに、各隔壁２８、２９、３０直近上部の風速を速くで
き、更に風速分布を均一化させることができる。Second Embodiment FIG. 4 is a diagram showing a cross-sectional structure of an air-side heat exchanger according to a second embodiment of the present invention. This embodiment is the same as Embodiment 1 except that the shape of the partition provided in the outside air introduction passage of the air-side heat exchanger is different from that of Embodiment 1. As shown in FIG. 4, the front partition 28, the middle partition 29, and the rear partition 30 in the second embodiment each have a gap 27 over the entire end portion adjacent to the V-shaped heat exchanger 2. As in the first embodiment, the partition walls (13, 14, 15) are provided to divide the outside air introduction passage into upper and lower portions, so that the wind speed flowing into the air heating surface of the heat exchanger 2 is equalized vertically as a whole. However, more locally, as seen by the dashed line in FIG.
It can be seen that the wind speed decreases immediately above the front partition 13, the middle partition 14, and the rear partition 15. In order to suppress this decrease in wind speed,
As shown in FIG. 4, the front partition 28, the middle partition 29, and the rear partition 3
0, and a gap 27 is provided at a position close to the heat exchanger 2, and a high wind speed immediately below each of the partition walls 28, 29, 30 is reduced to a portion where the wind speed immediately above each of the partition walls 28, 29, 30 is low. By bypassing through the gap 27, as shown by a dashed line (Embodiment 2) in FIG. 5, the wind speed immediately above each of the partition walls 28, 29, 30 can be increased, and the wind speed distribution can be further uniformed.
【００１８】各隔壁は、それぞれ断面が三角形である前
側、中間及び後側の各外気導入路を上下に２分割してな
る上段の断面積と下段の断面積が等しくなる位置に設置
するのがよい。すなわち、隔壁は、図２に示す寸法ａ、
ｈより、ａ＝ｈ／√２の位置に設置することにより、熱
交換器２の空熱面に対し垂直に流れる空気の風速分布を
最適化することができる。Each partition is preferably installed at a position where the cross-sectional area of the upper stage is equal to the cross-sectional area of the lower stage, which is obtained by dividing the front, middle, and rear outside air introduction passages each having a triangular cross section into upper and lower portions. Good. That is, the partition has the dimension a shown in FIG.
By setting h at a position of a = h / よ り 2, it is possible to optimize the wind speed distribution of air flowing perpendicularly to the aerothermal surface of the heat exchanger 2.
【００１９】図６は、前・上段外気導入路３４と前・下
段外気導入路３５それぞれの断面積が等しくなるように
前隔壁３１を設け、かつ前隔壁３１が熱交換器２の空熱
面に直角に取り付けられている。同様に、中・上段外気
導入路３６と中・下段外気導入路３７間の中隔壁３２
と、後・上段外気導入路３８と後・下段外気導入路３９
間の後隔壁３３も、それぞれ対応する熱交換器２の空熱
面に直角に取り付けられている。このように各隔壁を取
り付けることにより、各隔壁直上及び直下における空気
流れをスムーズにすることができる。FIG. 6 shows a front partition 31 provided so that the sectional areas of the front / upper outside air introduction passage 34 and the front / lower outside air introduction passage 35 are equal to each other. Mounted at right angles to Similarly, the middle partition 32 between the middle / upper outside air introduction passage 36 and the middle / lower outside air introduction passage 37
And the rear / upper outside air introduction path 38 and the rear / lower outside air introduction path 39
The rear bulkheads 33 between them are also mounted at right angles to the aerothermal surfaces of the corresponding heat exchangers 2. By attaching each partition in this way, the air flow just above and immediately below each partition can be made smooth.
【００２０】《実施の形態３》図７は、実施の形態１に
おける前隔壁１３、中隔壁１４、後隔壁１５の下方にそ
れぞれ前・下段隔壁４１、中・下段隔壁４２、後・下段
隔壁４３を配設した空気側熱交換器を示す図である。実
施の形態１では、隔壁を配設することにより熱交換器２
下部における熱交換器面に垂直に流れる風速の低下を抑
えることは可能となったが、各下段外気導入路１７、１
９、２１から熱交換器面に垂直に流れる風速は、上部に
比べ風速は低下しやすい。そこで図７に示すように、空
気側熱交換器室底部に前・下段隔壁４１、中・下段隔壁
４２、後・下段隔壁４３を熱交換器２の空熱面に直角に
設けることにより、各下段隔壁４１、４２、４３と空気
側熱交換器室の底壁となるドレンパン６との間にそれぞ
れ前・底部外気導入路１７ｂ、中・底部外気導入路１９
ｂ、後・底部外気導入路２１ｂを形成する。これにより
各底部外気導入路１７ｂ、１９ｂ、２１ｂに導入した空
気はもっぱらドレンパン６近辺の熱交換器２の部位に流
れ込み、それぞれの上の外気導入路１７ａ、１９ａ、２
１ａに流れることがなくなる。したがって、送風機から
最も遠い熱交換器２の最下部における風速低下を抑える
ことが可能となり、より均一な風速分布が得られる。<Embodiment 3> FIG. 7 shows a front / lower partition 41, a middle / lower partition 42, and a rear / lower partition 43 below a front partition 13, a middle partition 14, and a rear partition 15 in the first embodiment, respectively. It is a figure which shows the air side heat exchanger in which was arrange | positioned. In the first embodiment, the heat exchanger 2
Although it was possible to suppress a decrease in the wind speed flowing vertically to the heat exchanger surface in the lower part, it was possible to reduce
The wind speed flowing vertically from 9 and 21 to the heat exchanger surface tends to be lower than that at the top. Therefore, as shown in FIG. 7, the front and lower partition walls 41, the middle and lower partition walls 42, and the rear and lower partition walls 43 are provided at the bottom of the air-side heat exchanger chamber at right angles to the air-heating surface of the heat exchanger 2. The front / bottom outside air introduction passage 17b and the middle / bottom outside air introduction passage 19 are respectively provided between the lower partition walls 41, 42, 43 and the drain pan 6 serving as the bottom wall of the air-side heat exchanger room.
b, the rear / bottom outside air introduction passage 21b is formed. As a result, the air introduced into the bottom outside air introduction passages 17b, 19b, and 21b exclusively flows into the portion of the heat exchanger 2 near the drain pan 6, and the outside air introduction passages 17a, 19a, and
No longer flows to 1a. Therefore, it is possible to suppress a decrease in wind speed at the lowermost portion of the heat exchanger 2 farthest from the blower, and to obtain a more uniform wind speed distribution.
【００２１】[0021]
【発明の効果】本発明によれば、凝縮器としてＶ字状熱
交換器ユニットを有する空気調和機において、Ｖ字状熱
交換器ユニットを１基備える場合にはＶ字状熱交換器ユ
ニット前後にそれぞれ形成される三角形断面の外気導入
路に該外気導入路を上下に分割する隔壁を設けることに
より、またＶ字状熱交換器ユニットを複数基からなる熱
交換部を備える場合には、熱交換部前後それぞれ形成さ
れる三角形断面の外気導入路、及びＶ字状熱交換器ユニ
ット間に形成される２等辺三角形断面の外気導入路に該
外気導入路を上下に分割する隔壁を設けることにより、
従来の課題であった空気側熱交換器下部の風速低下を防
止でき、風速分布を均一化させることが可能となり、し
たがって空気側熱交換器の有効伝熱面積が増えるため、
空気側熱交換器を小形化でき、ユニットの据付面積の縮
小、軽量化、材料費削減に伴う原価低減の効果を得る事
が可能となる。また、風速分布を均一化させることがで
きることから、風速のアンバランスで従来起きていた異
常振動、異常騒音を防止することが可能となる。According to the present invention, in an air conditioner having a V-shaped heat exchanger unit as a condenser, when one V-shaped heat exchanger unit is provided, the air conditioner is placed before and after the V-shaped heat exchanger unit. By providing a partition that vertically divides the outside air introduction passage into the outside air introduction passage having a triangular cross-section formed respectively, and when a heat exchange unit including a plurality of V-shaped heat exchanger units is provided, By providing a partition that vertically divides the outside air introduction path into the outside air introduction path having a triangular cross section formed before and after the exchange portion, and the outside air introduction path having an isosceles triangle section formed between the V-shaped heat exchanger units. ,
Since the lowering of the wind speed at the lower part of the air-side heat exchanger, which has been a conventional problem, can be prevented, and the wind speed distribution can be made uniform. Therefore, the effective heat transfer area of the air-side heat exchanger increases,
The air-side heat exchanger can be reduced in size, and the effect of reducing the installation area of the unit, reducing the weight, and reducing the cost associated with the reduction of the material cost can be obtained. Further, since the wind speed distribution can be made uniform, it is possible to prevent the abnormal vibration and the abnormal noise that have conventionally occurred due to the imbalance in the wind speed.
【図１】本発明の実施の形態１となる空気調和機の構成
を示す斜視図である。FIG. 1 is a perspective view showing a configuration of an air conditioner according to Embodiment 1 of the present invention.
【図２】実施の形態１にかかるＶ字状空気側熱交換器で
の空気流れを示す図である。FIG. 2 is a diagram showing an air flow in the V-shaped air-side heat exchanger according to the first embodiment.
【図３】従来のＶ字状空気側熱交換器での空気流れを示
す図である。FIG. 3 is a diagram showing an air flow in a conventional V-shaped air-side heat exchanger.
【図４】本発明の実施の形態２にかかるＶ字状空気側熱
交換器に設けた隔壁の形状を示す図である。FIG. 4 is a diagram illustrating a shape of a partition wall provided in a V-shaped air-side heat exchanger according to a second embodiment of the present invention.
【図５】空気側熱交換器の吸い込み位置と風速の関係を
示すグラフである。FIG. 5 is a graph showing a relationship between a suction position of an air-side heat exchanger and a wind speed.
【図６】隔壁により分割された上段外気導入路部と下段
外気導入路の断面積を同一とした空気側熱交換器の構造
図である。FIG. 6 is a structural diagram of an air-side heat exchanger in which an upper-stage outside-air introduction passage portion and a lower-stage outside-air introduction passage divided by a partition have the same cross-sectional area.
【図７】外気導入路を上下分割する隔壁に加え、外気導
入路底部に別の隔壁を設けた空気側熱交換器の構造図で
ある。FIG. 7 is a structural diagram of an air-side heat exchanger in which another partition is provided at the bottom of the outside air introduction path in addition to a partition that vertically divides the outside air introduction path.
１ 圧縮機 ２ 空気側熱交換器 ３ 水冷却器 ４ 送風機 ５ 電気品箱 ６ ドレンパン ７ ベースフレーム １１ ふさぎ板 １２ カバー １３ 前隔壁 １４ 中隔壁 １５ 後隔壁 １６ 前・上段外気導入路 １７ 前・下段外気導入路 １７ａ 前・下段外気導入路 １７ｂ 前・底部外気導入路 １８ 中・上段外気導入路 １９ 中・下段外気導入路 １９ａ 中・下段外気導入路 １９ｂ 中・底部外気導入路 ２０ 後・上段外気導入路 ２１ 後・下段外気導入路 ２１ａ 後・下段外気導入路 ２１ｂ 後・底部外気導入路 ２７ 隙間 ２８ 前隔壁 ２９ 中隔壁 ３０ 後隔壁 ３１ 前隔壁 ３２ 中隔壁 ３３ 後隔壁 ３４ 前・上段外気導入路 ３５ 前・下段外気導入路 ３６ 中・上段外気導入路 ３７ 中・下段外気導入路 ３８ 後・上段外気導入路 ３９ 後・下段外気導入路 ４１ 前・下段隔壁 ４２ 中・下段隔壁 ４３ 後・下段隔壁 DESCRIPTION OF SYMBOLS 1 Compressor 2 Air side heat exchanger 3 Water cooler 4 Blower 5 Electric box 6 Drain pan 7 Base frame 11 Covering plate 12 Cover 13 Front partition 14 Middle partition 15 Rear partition 16 Front / upper outside air introduction path 17 Front / lower outside air Introductory path 17a Front / lower external air inlet path 17b Front / bottom external air inlet path 18 Middle / upper external air inlet path 19 Middle / lower external air inlet path 19a Middle / lower external air inlet path 19b Middle / bottom external air inlet path 20 Rear / upper external air inlet Road 21 Rear / lower outside air introduction path 21a Rear / lower outside air introduction path 21b Rear / bottom outside air introduction path 27 Gap 28 Front partition 29 Middle partition 30 Rear partition 31 Front partition 32 Middle partition 33 Rear partition 34 Front / upper section external air introduction path 35 Front / lower-stage outside-air introduction channel 36 Middle / upper-stage outside-air introduction channel 37 Middle / lower-stage outside-air introduction channel 38 Rear / upper-stage outside-air introduction channel 39 Rear / lower-stage outside-air introduction channel 41 front / Stage partition wall 42 in-lower partition wall 43 after and lower partition wall
───────────────────────────────────────────────────── フロントページの続き (72)発明者 上倉 正教 静岡県清水市村松390番地 株式会社日立 製作所空調システム事業部内 (72)発明者 小松 満 静岡県清水市村松390番地 株式会社日立 製作所空調システム事業部内 (72)発明者 茂田 孝治 静岡県清水市村松390番地 日立清水エン ジニアリング株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masanori Uekura 390 Muramatsu, Shimizu, Shizuoka Prefecture Inside the Air Conditioning Systems Division, Hitachi, Ltd. (72) Inventor Mitsuru Komatsu 390 Muramatsu, Shimizu, Shizuoka Prefecture Air Conditioning Systems Business, Hitachi, Ltd. (72) Inventor Koji Shigeta 390 Muramatsu, Shimizu-shi, Shizuoka Prefecture Inside Hitachi Shimizu Engineering Co., Ltd.
Claims (5)
えた空気調和機において、凝縮器は、前後に配置した２
枚の熱交換器を互いにその下辺を近接させ上辺を離間さ
せて組み合わせたＶ字状の熱交換器ユニットと、該熱交
換器ユニットの上に配置された送風機と、熱交換器ユニ
ットの前端から下方に延びる前面カバーと、熱交換器ユ
ニットの後端から下方に延びる後面カバーと、熱交換器
ユニットの下端に接して下側を覆う底壁と、熱交換器ユ
ニットの両側面を覆う逆三角形の側面カバーとから構成
し、前面カバー、熱交換器ユニット及び底壁により区画
された三角形断面の通路、及び熱交換器ユニット、後面
カバー及び底壁により区画された三角形断面の通路をそ
れぞれ外気導入路とし、かつそれぞれの外気導入路に隔
壁を設けて上下複数段に分割したことを特徴とする空気
調和機。1. An air conditioner equipped with a compressor, a condenser, an evaporator, and a decompression device, wherein the condenser is disposed in front and rear of the air conditioner.
A V-shaped heat exchanger unit in which two heat exchangers are combined with their lower sides approaching each other and their upper sides separated from each other, a blower disposed on the heat exchanger units, and a front end of the heat exchanger unit. A front cover extending downward, a rear cover extending downward from the rear end of the heat exchanger unit, a bottom wall in contact with the lower end of the heat exchanger unit and covering the lower side, and an inverted triangle covering both side surfaces of the heat exchanger unit And a side cover having a triangular section defined by a front cover, a heat exchanger unit and a bottom wall, and a passage having a triangular section defined by a heat exchanger unit, a rear cover and a bottom wall. An air conditioner characterized by being divided into a plurality of upper and lower stages by providing a partition and providing a partition in each of the outside air introduction passages.
えた空気調和機において、凝縮器は、前後に配置した２
枚の熱交換器を互いにその下辺を近接させ上辺を離間さ
せて組み合わせなる複数組のＶ字状熱交換器ユニットを
前後に並べた熱交換部と、熱交換器ユニットそれぞれの
上に配置された送風機と、熱交換部から下方に延びる前
面カバーと、熱交換部の後端から下方に延びる後面カバ
ーと、熱交換部の下端に接して下側を覆う底壁と、各Ｖ
字状熱交換器ユニットの両側面を覆う逆三角形の側面カ
バーとから構成し、前面カバー、熱交換部及び底壁によ
り区画された三角形断面の通路、隣合うＶ字状熱交換器
ユニットと底壁により区画された２等辺三角形断面の通
路、及び熱交換部、後カバー及び底壁により区画された
三角形断面の通路をそれぞれ外気導入路とし、かつそれ
ぞれの外気導入路に隔壁を設けて上下複数段に分割した
ことを特徴とする空気調和機。2. An air conditioner provided with a compressor, a condenser, an evaporator, and a decompression device, wherein the condenser is disposed in front and rear of the air conditioner.
A plurality of V-shaped heat exchanger units in which a plurality of heat exchangers are combined with their lower sides close to each other and their upper sides separated from each other are arranged on the front and rear, and the heat exchanger units are arranged on each of the heat exchanger units. A blower, a front cover extending downward from the heat exchange unit, a rear cover extending downward from the rear end of the heat exchange unit, a bottom wall in contact with the lower end of the heat exchange unit and covering the lower side,
An inverted triangular side cover that covers both side surfaces of the U-shaped heat exchanger unit, a front cover, a heat exchange section and a passage having a triangular cross section defined by a bottom wall, an adjacent V-shaped heat exchanger unit and a bottom A passage having an isosceles triangular cross section defined by a wall and a passage having a triangular cross section defined by a heat exchange section, a rear cover, and a bottom wall are each defined as an outside air introduction path, and a partition is provided in each outside air introduction path to form a plurality of upper and lower sections. An air conditioner characterized by being divided into stages.
請求項１又は２に記載の空気調和機。3. The air conditioner according to claim 1, wherein the partition divides the outside air introduction passage into upper and lower stages.
に貫通する隙間を設けた請求項１又は２に記載の空気調
和機。4. The air conditioner according to claim 1, wherein a gap penetrating vertically is provided on a side of the end of the partition wall that contacts the heat exchanger.
外気導入路それぞれの断面積が同等である請求項３に記
載の空気調和機。5. The air conditioner according to claim 3, wherein the upper-stage outside-air introduction passage and the lower-stage outside-air introduction passage divided by a partition have the same sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32944696A JPH10170030A (en) | 1996-12-10 | 1996-12-10 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32944696A JPH10170030A (en) | 1996-12-10 | 1996-12-10 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10170030A true JPH10170030A (en) | 1998-06-26 |
Family
ID=18221472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32944696A Pending JPH10170030A (en) | 1996-12-10 | 1996-12-10 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10170030A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002228193A (en) * | 2001-01-30 | 2002-08-14 | Nakano Refrigerators Co Ltd | Integral air cooled type refrigerating machine unit |
| KR20020095621A (en) * | 2001-06-15 | 2002-12-28 | 주식회사 에이알 | Closed circuit type cooling tower and method for controlling the same |
| JP2003083624A (en) * | 2001-09-12 | 2003-03-19 | Mitsubishi Electric Corp | Air conditioner |
| CN102252558A (en) * | 2011-05-06 | 2011-11-23 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchange device |
| JP2017116171A (en) * | 2015-12-24 | 2017-06-29 | 株式会社前川製作所 | Cooler unit |
| US20200318909A1 (en) * | 2017-09-27 | 2020-10-08 | Holtec International | Air-cooled condenser system |
-
1996
- 1996-12-10 JP JP32944696A patent/JPH10170030A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002228193A (en) * | 2001-01-30 | 2002-08-14 | Nakano Refrigerators Co Ltd | Integral air cooled type refrigerating machine unit |
| KR20020095621A (en) * | 2001-06-15 | 2002-12-28 | 주식회사 에이알 | Closed circuit type cooling tower and method for controlling the same |
| JP2003083624A (en) * | 2001-09-12 | 2003-03-19 | Mitsubishi Electric Corp | Air conditioner |
| EP1293731A2 (en) * | 2001-09-12 | 2003-03-19 | Mitsubishi Denki Kabushiki Kaisha | Air conditioner |
| EP1293731A3 (en) * | 2001-09-12 | 2003-04-02 | Mitsubishi Denki Kabushiki Kaisha | Air conditioner |
| CN102252558A (en) * | 2011-05-06 | 2011-11-23 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchange device |
| JP2017116171A (en) * | 2015-12-24 | 2017-06-29 | 株式会社前川製作所 | Cooler unit |
| US20200318909A1 (en) * | 2017-09-27 | 2020-10-08 | Holtec International | Air-cooled condenser system |
| US11604030B2 (en) * | 2017-09-27 | 2023-03-14 | Holtec International | Air-cooled condenser system |
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