JPS6246716B2 - - Google Patents
Info
- Publication number
- JPS6246716B2 JPS6246716B2 JP58113724A JP11372483A JPS6246716B2 JP S6246716 B2 JPS6246716 B2 JP S6246716B2 JP 58113724 A JP58113724 A JP 58113724A JP 11372483 A JP11372483 A JP 11372483A JP S6246716 B2 JPS6246716 B2 JP S6246716B2
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- control object
- flow
- heat exchanger
- forced
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は主として空気調和機に使用されるクロ
スフローフアンに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cross flow fan mainly used in an air conditioner.
従来例の構成とその問題点
従来、この種の空気調和機は第１図に示すよう
に構成されていた。即ち１は羽根車、２は舌部、
３はリアガイド、４はケーシング側板、５は熱交
換器であり、羽根車１が時計方向に回転すると、
羽根車１内周近くに中心O1を有する強制うずが
生成され、矢印で示すような吸込側と吐出側で翼
列を２度通過する貫通流れ１，２，３……
…が誘起される。このような構成になるクロスフ
ローフアンにおいては、従来より主として舌部や
リアガイドの形状・寸法を種々変えて、フアン性
能を向上させる方法がとられてきたが、上記手法
では限界があつた。即ちケーシング形状・寸法を
変えるだけでは、クロスフローフアン流れを支配
する強制うずを完全に制御することはできなく
て、循環流れＶが舌部近傍迄張り出してうず領域
が大きくなり、その結果貫通流れ領域が狭くな
り、フアン効率を向上させるにも限界があつた。
そこで上記欠点を除去する為にクロスフローフア
ン吐出領域に強制うずをコントロールする制御物
体を挿入することにより、クロスフローフアン流
れを良好に制御し、以つてクロスフローフアン効
率を向上させることができるが、その為にはクロ
スフローフアンの吐出領域において、羽根車内に
生成される強制うずの中心O1を軸方向に連ねた
うず線と羽根車１の中心線を結ぶ平面と、吸込側
に面した舌部端面の中で羽根車１の外周面と最も
近接した稜線と羽根車１の中心線を結ぶ平面で構
成される空間にあつて、且つクロスフローフアン
の貫通流れに影響を及ぼさないような比較的羽根
車外周面に近い位置に、上記強制うずを制御する
制御物体を設置する必要がある。この構成によ
り、強制うずの位置を最適位置に保ちつつうずの
拡がりを抑え、且つうずの強さを増大させること
が可能となる。Conventional configuration and its problems Conventionally, this type of air conditioner has been configured as shown in FIG. That is, 1 is the impeller, 2 is the tongue,
3 is a rear guide, 4 is a casing side plate, and 5 is a heat exchanger. When the impeller 1 rotates clockwise,
A forced vortex with a center O 1 is generated near the inner circumference of the impeller 1, and a through flow passes through the blade rows twice on the suction side and the discharge side as shown by the arrows 1 , 2 , 3 ...
... is induced. In cross-flow fans having such a configuration, conventional methods have been used to improve fan performance mainly by changing the shape and dimensions of the tongue portion and rear guide, but the above-mentioned method has limitations. In other words, by simply changing the casing shape and dimensions, it is not possible to completely control the forced eddy that governs the cross-flow fan flow, and the circulating flow V extends to the vicinity of the tongue, increasing the eddy area, resulting in a through-flow. The area became narrower, and there was a limit to how much fan efficiency could be improved.
Therefore, in order to eliminate the above-mentioned drawbacks, by inserting a control object that controls forced eddies into the cross-flow fan discharge area, it is possible to better control the cross-flow fan flow and thereby improve the cross-flow fan efficiency. For this purpose, in the discharge area of the cross flow fan, a plane connecting the center line of the impeller 1 and the vortex line connecting the center O 1 of the forced vortices generated in the impeller in the axial direction, and a plane facing the suction side. A space consisting of a plane connecting the center line of the impeller 1 and the ridge line closest to the outer circumferential surface of the impeller 1 in the tongue end face, and which does not affect the through flow of the cross flow fan. It is necessary to install a control object for controlling the forced eddy at a position relatively close to the outer peripheral surface of the impeller. With this configuration, it is possible to suppress the spread of the vortices while keeping the forced vortices at optimal positions, and to increase the strength of the vortices.
ところが上記強制うずは、クロスフローフアン
の吸込側に設けられた熱交換器の流体抵抗の大小
によりその位置を変え、流体抵抗が大きくなると
うずはほぼ羽根車の内周上を回転方向と反対方向
の周方向に移動する。 However, the forced vortex changes its position depending on the fluid resistance of the heat exchanger installed on the suction side of the crossflow fan, and when the fluid resistance increases, the vortex moves almost on the inner circumference of the impeller in the opposite direction to the rotation direction. move in the circumferential direction.
従つて１種類のクロスフローフアンで、異なつ
た流体抵抗の熱交換器に対応する場合、各熱交換
器に応じて強制うず位置が変わることになる。そ
の結果、上述の制御物体を挿入してクロスフロー
フアンの効率を上げようとする場合、各熱交換器
種類により制御物体の挿入位置を変えねばなら
ず、その都度制御物体を支持するホルダ位置を変
えるための手直し加工が必要となり不都合であつ
た。 Therefore, if one type of crossflow fan is used to accommodate heat exchangers with different fluid resistances, the forced vortex position will change depending on each heat exchanger. As a result, when trying to increase the efficiency of a crossflow fan by inserting the control object described above, the insertion position of the control object must be changed depending on the type of heat exchanger, and the holder position that supports the control object must be changed each time. This was inconvenient as it required rework to make the change.
発明の目的
本発明はこのような従来の欠点を除去するもの
で、制御物体を羽根車の外周面に近い位置で、羽
根車の周方向任意の位置に移動固定できるように
し、流体抵抗の異なる種々の熱交換器に対して、
それぞれ最適位置に制御物体を設置することによ
り、クロスフローフアンの効率を向上させること
を目的とするものである。Purpose of the Invention The present invention aims to eliminate such conventional drawbacks by making it possible to move and fix a control object at any position in the circumferential direction of the impeller at a position close to the outer peripheral surface of the impeller. For various heat exchangers,
The purpose is to improve the efficiency of the crossflow fan by installing control objects at optimal positions.
発明の構成
この目的を達成するために本発明は、舌部、リ
アガイド、ケーシング側板よりなるケーシング
と、ケーシング内に設けた羽根車と、この羽根車
の吐出領域にあつて且つ流れに直接影響を及ぼさ
ない比較的羽根車の外周面に近い位置に設けら
れ、前記羽根車内部に生成される強制うずを制御
する制御物体と、前記羽根車の上流側に設けた熱
交換器とを有し、前記熱交換器の流体抵抗により
移動する前記強制うずのうず線と、前記羽根車の
中心線を結ぶ平面と、吸込側に面した前記舌部端
面の中で前記羽根車外周面と最も近接した稜線と
前記羽根車の中心線を結ぶ平面との２つの平面で
構成される空間に、前記制御物体を前記熱交換器
の流体抵抗に応じて移動可能とするホルダを前記
ケーシング側板上に設けてなる構成である。Structure of the Invention To achieve this object, the present invention includes a casing consisting of a tongue, a rear guide, and a casing side plate, an impeller provided in the casing, and an impeller located in the discharge area of the impeller and directly affecting the flow. a control object that is provided at a position relatively close to the outer circumferential surface of the impeller and controls forced eddies generated inside the impeller, and a heat exchanger that is provided on the upstream side of the impeller. , a plane connecting the vortex line of the forced vortex that moves due to fluid resistance of the heat exchanger and the center line of the impeller, and a plane that is closest to the outer circumferential surface of the impeller among the end surfaces of the tongue facing the suction side; A holder is provided on the side plate of the casing to allow the control object to move according to the fluid resistance of the heat exchanger in a space formed by two planes, that is, a plane connecting the ridge line and the center line of the impeller. The structure is as follows.
この構成により、流体抵抗の異なる熱交換器を
設置した結果強制うず位置が変化しても、強制う
ずを制御する制御物体を最適の位置に移動固定す
ることができるため、うずを最適位置に保ちつつ
うずの拡がりを抑え、且つ強いうずを生成させる
ことが可能となる。その結果クロスフローフアン
流れを良好に制御することができるため、フアン
効率を向上させることができるものである。 With this configuration, even if the forced eddy position changes as a result of installing a heat exchanger with a different fluid resistance, the control object that controls the forced eddy can be moved and fixed at the optimal position, so the eddy can be maintained at the optimal position. It becomes possible to suppress the spread of eddies and to generate strong eddies. As a result, the cross-flow fan flow can be well controlled, so that the fan efficiency can be improved.
実施例の説明
以下本発明の一実施例を第２図の図面を用いて
説明する。図において１は羽根車、２は舌部、３
はリアガイド、４はケーシング側板、５は熱交換
器、６はうず制御物体、７は制御物体と嵌合する
ホルダである。このような構造になるクロスフロ
ーフアンにおいては、羽根車１内部に生成される
強制うずを構成する循環流れのうち、うず中心よ
り離れた流れＶはうず制御物体６の存在によつて
半径方向に拡がることを抑制される。即ち流量に
寄与しない循環流れの領域を狭くすることがで
き、その結果貫通流れ領域を広くとれるため、流
量性能を向上させることができる。一方上記うず
制御物体６を挿入することにより、うずの強さを
強くすることができるとともに、吸込側の貫通流
線１，２，３，……を、第１図のそれらと
比べて、水平方向に寝かせることができるので翼
列仕事が増え、その結果圧力性能も高めることが
可能となる。なお上記うず制御物体６を用いて効
果をあげるには、その挿入位置に留意しなければ
ならない。即ち挿入位置の適切な範囲は、羽根車
１の周方向にはうず線と羽根車１の中心線を含む
平面OAと、吸込側に面した舌部端面の中で羽根
車１の外周面と最も近接した稜線２１と羽根車１
の中心線を含む平面OBとで構成される空間内
で、且つ半径方向には羽根車１の外周面より余り
離れず、直接貫通流れの影響が及ばない範囲に限
定される。これはうず制御物体６を上記範囲に挿
入することにより、最終的には貫通流れが直接う
ず制御物体６に衝突するのでなく、循環流れのみ
がうず制御物体６の前面部をなめるように流れる
ため、流体抵抗の増加をきたすことなくうずをコ
ントロールできるためである。従つて上記範囲を
逸脱するとうずの制御はできなくなる上に、挿入
物体が流体抵抗の増加することだけに寄与するた
め逆効果になることが多い。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. 2. In the figure, 1 is the impeller, 2 is the tongue, and 3
4 is a rear guide, 4 is a casing side plate, 5 is a heat exchanger, 6 is an eddy control object, and 7 is a holder that fits with the control object. In the cross flow fan having such a structure, among the circulating flows forming the forced eddies generated inside the impeller 1, the flow V away from the eddy center is radially oriented due to the presence of the eddy control object 6. The spread is suppressed. That is, the region of the circulating flow that does not contribute to the flow rate can be narrowed, and as a result, the through-flow region can be widened, so that the flow rate performance can be improved. On the other hand, by inserting the eddy control object 6, the strength of the eddies can be increased, and the through flow lines 1 , 2 , 3 , ... on the suction side can be made horizontal compared to those in FIG. Since the blade can be laid in the opposite direction, the work of the blade cascade increases, and as a result, the pressure performance can also be improved. Note that in order to obtain the desired effect using the eddy control object 6, attention must be paid to its insertion position. In other words, the appropriate range of the insertion position is the plane OA that includes the spiral line and the center line of the impeller 1 in the circumferential direction of the impeller 1, and the outer peripheral surface of the impeller 1 in the tongue end face facing the suction side. The closest ridgeline 21 and impeller 1
It is limited to a space formed by a plane OB including the center line of the impeller 1, and to a range not far away from the outer circumferential surface of the impeller 1 in the radial direction and not directly affected by the through flow. This is because by inserting the eddy control object 6 into the above range, the through flow does not directly collide with the eddy control object 6, but only the circulation flow flows licking the front part of the eddy control object 6. This is because the eddy can be controlled without increasing fluid resistance. Therefore, if the above-mentioned range is exceeded, the eddy cannot be controlled, and the inserted object only contributes to an increase in fluid resistance, which often has the opposite effect.
またここではうず制御物体６として、第２図に
示すような端部をテーパ状にした丸棒を使用した
が、これは円形断面を有する丸棒だと流れの方向
に関係なく挿入できるためである。更にクロスフ
ローフアンの流れはほぼ２次元流れで、両端部を
除いては軸方向にほぼ同じ流れ状態になつてい
る。 In addition, a round rod with a tapered end as shown in Fig. 2 was used here as the eddy control object 6, but this is because a round rod with a circular cross section can be inserted regardless of the flow direction. be. Furthermore, the flow of the cross flow fan is a nearly two-dimensional flow, and the flow state is almost the same in the axial direction except for both ends.
従つて上記うず制御物体６は軸方向の任意の位
置に、ある範囲の長さだけ挿入することによつ
て、軸方向全体の流れをコントロールすることが
できる。 Therefore, by inserting the vortex control object 6 at any position in the axial direction over a certain range of length, it is possible to control the entire flow in the axial direction.
発明の効果
以上のように、クロスフローフアンの吐出領域
にあつて、且つクロスフローフアン貫通流れに直
接影響を及ぼさない比較的羽根車の外周面に近い
位置に、クロスフローフアンの内部に生成される
強制うずを制御するうず制御物体を設けるととも
に、そのうず制御物体を移動可能に支持するホル
ダをケーシング側板に設けたことにより、流体抵
抗の異なる熱交換器を設置した結果強制うず位置
が移動変化しても、それに応じて上記強制うずを
制御する制御物体を最適位置に移動固定すること
ができるため、うずを最適位置に保ちつつうずの
不必要な拡がりを抑えるとともに強いうずを形成
することができるため、良好なクロスフローフア
ンの流れを実現することができ、フアン効率を向
上させることが可能となる。Effects of the Invention As described above, in the discharge region of the cross-flow fan, and at a position relatively close to the outer circumferential surface of the impeller that does not directly affect the flow passing through the cross-flow fan, it is generated inside the cross-flow fan. In addition to providing a vortex control object to control the forced eddy caused by the vortex control object, a holder that movably supports the eddy control object is provided on the casing side plate.As a result of installing a heat exchanger with different fluid resistance, the forced eddy position can be moved and changed. The control object that controls the forced vortices can be moved and fixed at the optimal position accordingly, so that unnecessary expansion of the vortices can be suppressed and strong vortices can be formed while keeping the vortices in the optimal position. Therefore, it is possible to realize a good cross-flow fan flow, and it is possible to improve the fan efficiency.
第１図ａ，ｂはそれぞれ従来例における空気調
和機を示す断面図及び一部正面図、第２図ａ，ｂ
は本発明の一実施例を示す断面図及び一部正面図
である。
１……羽根車、２……舌部、３……リアガイ
ド、４……ケーシング側板、５……熱交換器、６
……うず制御物体、７……制御物体ホルダ。
Figures 1a and b are a sectional view and a partial front view of a conventional air conditioner, respectively, and Figures 2a and b are
1 is a sectional view and a partial front view showing an embodiment of the present invention. 1... Impeller, 2... Tongue, 3... Rear guide, 4... Casing side plate, 5... Heat exchanger, 6
...Edge control object, 7...Control object holder.
Claims (1)
ケーシングと、このケーシング内に設けた羽根車
と、この羽根車の吐出領域にあつて且つ流れに直
接影響を及ぼさない比較的羽根車の外周面に近い
位置に設けられ、前記羽根車内部に生成される強
制うずを制御する制御物体と、前記羽根車の上流
側に設けた熱交換器とを有し、前記熱交換器の流
体抵抗により移動する前記強制うずのうず線と、
前記羽根車の中心線を結ぶ平面と、吸込側に面し
た前記舌部端面の中で前記羽根車外周面と最も近
接した稜線と前記羽根車の中心線を結ぶ平面との
２つの平面で構成される空間に、前記制御物体を
前記熱交換器の流体抵抗に応じて移動可能とする
ホルダを前記ケーシング側板上に設けてなるクロ
スフローフアン。1. A casing consisting of a tongue, a rear guide, and a casing side plate, an impeller installed within this casing, and a portion located in the discharge area of this impeller and relatively close to the outer peripheral surface of the impeller that does not directly affect the flow. a control object disposed at a position to control forced eddies generated inside the impeller; and a heat exchanger disposed upstream of the impeller, the control object moving due to fluid resistance of the heat exchanger. Forced vortex lines and
Consisting of two planes: a plane connecting the center line of the impeller, and a plane connecting the center line of the impeller and a ridge line closest to the outer circumferential surface of the impeller among the end faces of the tongue facing the suction side. The cross flow fan is provided with a holder on the casing side plate that allows the control object to be moved in a space where the control object is moved according to the fluid resistance of the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11372483A JPS606097A (en) | 1983-06-23 | 1983-06-23 | Cross-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11372483A JPS606097A (en) | 1983-06-23 | 1983-06-23 | Cross-flow fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS606097A JPS606097A (en) | 1985-01-12 |
| JPS6246716B2 true JPS6246716B2 (en) | 1987-10-03 |
Family
ID=14619531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11372483A Granted JPS606097A (en) | 1983-06-23 | 1983-06-23 | Cross-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS606097A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01163344A (en) * | 1987-11-04 | 1989-06-27 | Strabag Bau Ag | Tensile member composed of fiber composite material and method and device for stretching and mooring such tensile member |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505909A (en) * | 1973-05-21 | 1975-01-22 | ||
| JPS57171096A (en) * | 1981-04-15 | 1982-10-21 | Matsushita Electric Ind Co Ltd | Ventilator |
-
1983
- 1983-06-23 JP JP11372483A patent/JPS606097A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505909A (en) * | 1973-05-21 | 1975-01-22 | ||
| JPS57171096A (en) * | 1981-04-15 | 1982-10-21 | Matsushita Electric Ind Co Ltd | Ventilator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01163344A (en) * | 1987-11-04 | 1989-06-27 | Strabag Bau Ag | Tensile member composed of fiber composite material and method and device for stretching and mooring such tensile member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS606097A (en) | 1985-01-12 |
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