JP3445785B2 - Fan device - Google Patents
Fan deviceInfo
- Publication number
- JP3445785B2 JP3445785B2 JP2001013080A JP2001013080A JP3445785B2 JP 3445785 B2 JP3445785 B2 JP 3445785B2 JP 2001013080 A JP2001013080 A JP 2001013080A JP 2001013080 A JP2001013080 A JP 2001013080A JP 3445785 B2 JP3445785 B2 JP 3445785B2
- Authority
- JP
- Japan
- Prior art keywords
- bent
- oil mist
- gas
- fan
- ring
- 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 - Lifetime
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、遠心ファンに軸流
を生じさせるための機能を設けたファン装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan device provided with a function for causing an axial flow in a centrifugal fan.
【0002】[0002]
【従来の技術】本出願人は、遠心ファンに軸流を生じさ
せるための機能を設けたファン装置を特公平7−107
397号公報、特公平7−18432号公報等により提
案している。The applicant of the present invention has proposed a fan device provided with a function for generating an axial flow in a centrifugal fan, as disclosed in Japanese Patent Publication No. 7-107.
It is proposed in Japanese Patent Publication No. 397, Japanese Patent Publication No. 7-18432, and the like.
【0003】この特公平7−107397号公報、特公
平7−18432号公報等により提案しているファン装
置は、図11、図12に示すように、モータ軸1を固定
した円板部2の前方に中央部が開口部3となったリング
状板部4を対向配置し、リング状板部4と円板部2との
間に前面視でく字状に屈曲した羽根部5を放射状に複数
枚架設し、羽根部5の屈曲部5aよりも外側部分5bを
円板部2よりも外方に突出させると共に該羽根部5の屈
曲部5aよりも外側部分5bを屈曲部5aよりも内側部
分5cに対して捩って回転方向に対して屈曲部5aより
も外側部分5bの前端部と後端部とがずれるように傾斜
させる構成となっている。The fan device proposed in Japanese Patent Publication No. 7-107397, Japanese Patent Publication No. 7-18432, and the like, as shown in FIGS. 11 and 12, includes a disc portion 2 to which a motor shaft 1 is fixed. A ring-shaped plate portion 4 having a central portion with an opening 3 is arranged to face the front, and a blade portion 5 bent in a V shape in a front view is radially arranged between the ring-shaped plate portion 4 and the disc portion 2. A plurality of blades 5 are installed so that the outer portion 5b of the blade portion 5 is projected outward from the disc portion 2 and the outer portion 5b of the blade portion 5 is located inside the bent portion 5a. It is configured to be twisted with respect to the portion 5c and be inclined so that the front end portion and the rear end portion of the outer portion 5b are displaced from the bent portion 5a with respect to the rotation direction.
【0004】このファン装置は、遠心ファンの外周に軸
流ファンを組み合わせたようなものであり、ファン6が
回転するとリング状板部4の中央の開口部3からオイル
ミストを含んだ気体が吸入され、羽根部5に沿って流
れ、この際、羽根部5に屈曲部5aが設けてあるので、
く字状の羽根部5のバッフル効果によりオイルミストを
含んだ気体の流れる向きが変えられながら羽根部5に衝
突して気体からオイルミストの凝集物が分離され、そし
て、く字状に屈曲した羽根部5の屈曲部5aよりも外側
部分5bを円板部2よりも外方に突出させると共に該羽
根部5の屈曲部5aよりも外側部分5bを屈曲部5aよ
りも内側部分5cに対して捩って回転方向に対して屈曲
部5aよりも外側部分5bの前端部と後端部とがずれる
ように傾斜させてあるので、気体よりも重いオイルミス
トの凝集物はファンの遠心力によりファンの外周方向に
飛ばされるが、オイルミストの凝集物が分離された気体
は屈曲部5aよりも外側部分5bの前端部と後端部とが
ずれるように傾斜した羽根部5の外側部分5bにガイド
されて斜め後方に送られるようになっており、このこと
により、分離したオイルミストと気体とのファン6から
出る際の主な流出方向が変えられてオイルミストを分離
して捕捉できるようになっている。This fan device is like a centrifugal fan combined with an axial fan, and when the fan 6 rotates, gas containing oil mist is sucked from the opening 3 at the center of the ring-shaped plate 4. And flows along the blade portion 5. At this time, since the blade portion 5 is provided with the bent portion 5a,
The baffle effect of the V-shaped blade portion 5 changes the flowing direction of the gas containing the oil mist, collides with the blade portion 5, separates the oil mist aggregates from the gas, and bends in a V shape. The outer portion 5b of the blade portion 5 outside the bent portion 5a is projected outward from the disk portion 2, and the outer portion 5b of the blade portion 5 outside the bent portion 5a is located inside the bent portion 5a. Since the front end portion and the rear end portion of the outer portion 5b are twisted with respect to the rotating direction with respect to the rotating direction, the agglomerates of oil mist heavier than gas are generated by the centrifugal force of the fan. The gas separated from the oil mist aggregates is guided to the outer portion 5b of the blade portion 5 inclined so that the front end portion and the rear end portion of the outer portion 5b deviate from the bent portion 5a. Being diagonally backward And adapted to be, by this, so that the main outflow direction is changed the oil mist as it exits from the fan 6 of the separated oil mist and gas can be captured and separated.
【0005】しかしながら、上記の従来例においては、
円板部2は平円板により構成してあり、このため、図1
2の矢印に示すようにオイルミストを含んだ気体のうち
円板部2に沿って流れた気体が円板部2の外周端を乗り
越えてショートパスして流れ、このように円板部2の外
周端を乗り越えてショートパスして流れた気体からはオ
イルミストが分離されないという問題があった。However, in the above conventional example,
The disc portion 2 is composed of a flat disc, and therefore, as shown in FIG.
Of the gas containing oil mist, the gas flowing along the disc portion 2 as shown by the arrow 2 passes over the outer peripheral edge of the disc portion 2 and flows in a short path. There is a problem that the oil mist is not separated from the gas that has passed the outer peripheral edge and passed through a short path.
【0006】また、従来にあっては、図12のように羽
根部5の屈曲部5aよりも外側部分5bの前端及び後端
がリング状板部4と円板部2との間の巾Lの範囲内に位
置しており、このため、く字状の羽根部5のバッフル作
用は、円板部2とリング状板部4との間の巾Lの範囲で
のみ行われていることになり、バッフル面積に制限があ
り、オイルミストの分離捕捉効率向上の制限となってい
るという問題もあった。Further, in the prior art, as shown in FIG. 12, the front end and the rear end of the outer portion 5b of the blade portion 5 with respect to the bent portion 5a have a width L between the ring-shaped plate portion 4 and the disc portion 2. Therefore, the baffle action of the V-shaped blade portion 5 is performed only in the range of the width L between the disc portion 2 and the ring-shaped plate portion 4. However, there is also a problem that the baffle area is limited and the efficiency of separating and capturing oil mist is limited.
【0007】更に、従来にあっては、図12に示すよう
に、く字状に屈曲した羽根部5の屈曲部5aよりも内側
部分5cの端縁部の前端5fをリング状板部4の開口部
3の縁に位置させ、羽根部5の内側部分5cの端縁部
を、モータ軸1から羽根部5の屈曲部5aよりも内側部
分5cの前端5fまでの距離とモータ軸1から羽根部5
の屈曲部5aよりも内側部分5cの後端5gまでの距離
とが等しくなるように水平としてあるので、リング状板
部4の中央部の開口部3から吸入されたオイルミストを
含んだ気体は、リング状板部4側よりも円板部2側がよ
り多く流れ、リング状板部4側である後側程オイルミス
トが多くなり、このようにオイルミスト分布が不均一で
あるため、く字状の羽根部5のバッフル効果で気体から
オイルミストの凝集物を分離するに当たって、羽根部5
全体を有効に利用しているとは言えず、オイルミストの
分離捕捉効率向上の制限となっているという問題があっ
た。Further, in the prior art, as shown in FIG. 12, the front end 5f of the edge portion of the inside portion 5c of the blade portion 5 bent in a dogleg shape is attached to the ring-shaped plate portion 4. The end portion of the inner portion 5c of the blade portion 5 is located at the edge of the opening 3, and the distance from the motor shaft 1 to the front end 5f of the inner portion 5c beyond the bent portion 5a of the blade portion 5 and the blade from the motor shaft 1 Part 5
Since it is horizontal so that the distance from the bent portion 5a to the rear end 5g of the inner portion 5c becomes equal, the gas containing oil mist sucked from the opening 3 at the center of the ring-shaped plate portion 4 , The disk portion 2 side flows more than the ring-shaped plate portion 4 side, and the oil mist increases toward the rear side, which is the ring-shaped plate portion 4 side. When separating the oil mist aggregates from the gas by the baffle effect of the blades 5
It cannot be said that the whole is effectively used, and there is a problem that it is a limitation for improving the efficiency of separating and capturing oil mist.
【0008】[0008]
【発明が解決しようとする課題】本発明は上記の点に鑑
みてなされたものであり、簡単な構成でバッフル面積を
広くできてオイルミストの分離捕捉効果を向上でき、ま
た、円板部に沿って流れるオイルミストを含んだ気体が
円板部の外周端を乗り越えてショートパスするのを防止
してオイルミストの分離捕捉効果を向上でき、また、リ
ング状板部の中央部の開口部から吸入されるオイルミス
トを含んだ気体をリング状板部と円板部との間に均一に
流してオイルミストの分布が均一な状態で流すことがで
き、羽根部全体を有効に利用してオイルミストの分離捕
捉効果を向上できるファン装置を提供することを課題と
するものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is possible to widen the baffle area with a simple structure to improve the separation and trapping effect of oil mist, and to improve the disc portion. The gas containing the oil mist flowing along it can be prevented from passing over the outer peripheral edge of the disk part and short-passing to improve the separation and capture effect of the oil mist, and from the opening in the center of the ring-shaped plate part. The gas containing the oil mist to be sucked can be made to flow evenly between the ring-shaped plate and the disk to allow the oil mist to be distributed uniformly, and the entire blade can be used effectively An object of the present invention is to provide a fan device that can improve the effect of separating and capturing mist.
【0009】[0009]
【課題を解決するための手段】上記課題を解決するため
に本発明に係るファン装置は、モータ軸1を固定した円
板部2の前方に中央部が開口部3となったリング状板部
4を対向配置し、リング状板部4と円板部2との間に前
面視でく字状に屈曲した羽根部5を放射状に複数枚架設
し、く字状に屈曲した羽根部5の屈曲部5aよりも外側
部分5bの後部を円板部2の外周端より外方向に突出さ
せて外方突出部5iとし、この外方突出部5iから円板
部2の外端を越えて円板部2の後方に向けて連出捕捉片
5hを連出し、この羽根部5の屈曲部5aよりも外側部
分5bの前端部5dと後端部5eとを回転方向に対して
ずらして成ることを特徴とするものである。このような
構成とすることで、気体よりも重いオイルミストの凝集
物はファン6の遠心力によりファン6の外周方向に飛ば
され、オイルミストの凝集物が分離された気体は屈曲部
5aよりも外側部分5bにガイドされて斜め後方に送ら
れるものであるが、この際、羽根部5の屈曲部5aより
も外側部分5bの後部を円板部2の外周端より外方向に
突出させて外方突出部5iとし、この外方突出部5iか
ら円板部2の外端を越えて円板部2の後方に向けて連出
捕捉片5hを連出することで、該円板部2の後方に向け
て連出した連出捕捉片5hの分だけバッフル面積を広く
できるものであり、また、円板部2の前面に沿って流れ
るオイルミストを含んだ気体は円板部2の外周端より外
方向に突出させた外方突出部5iを経てこの外方突出部
5iから円板部2の外端を越えて円板部2の後方位置ま
で連出した連出捕捉片5hに衝突してオイルミストが分
離捕捉されるものである。In order to solve the above problems, a fan device according to the present invention is a ring-shaped plate portion having an opening 3 at the center in front of a disk portion 2 to which a motor shaft 1 is fixed. 4 are arranged to face each other, and a plurality of blade portions 5 that are bent in a V shape in a front view are radially installed between the ring-shaped plate portion 4 and the circular plate portion 2, and the blade portions 5 that are bent in a V shape are formed. The rear portion of the outer portion 5b beyond the bent portion 5a is projected outward from the outer peripheral end of the disc portion 2.
To form the outer protruding portion 5i, and from this outer protruding portion 5i
A continuous capture piece that goes beyond the outer end of the portion 2 toward the rear of the disc portion 2
5h is continuous, and the front end portion 5d and the rear end portion 5e of the outer portion 5b of the blade portion 5 are offset from the bent portion 5a in the rotational direction. With such a configuration, the oil mist aggregates heavier than the gas are blown toward the outer peripheral direction of the fan 6 by the centrifugal force of the fan 6, and the gas from which the oil mist aggregates are separated is separated from the bent portion 5a. It is guided by the outer side portion 5b and fed obliquely rearward. At this time, the rear portion of the outer portion 5b is bent outward from the outer peripheral end of the disc portion 2 rather than the bent portion 5a of the blade portion 5.
The outer protrusion 5i is made to protrude, and this outer protrusion 5i
From the outer side of the disk part 2 toward the rear of the disk part 2
By extending the capture piece 5h, it is directed toward the rear of the disc portion 2.
The baffle area can be increased by the amount of the continuous capture piece 5h that is continuously discharged, and the gas containing the oil mist flowing along the front surface of the disc portion 2 is outside the outer peripheral end of the disc portion 2.
Through the outwardly projecting portion 5i projecting in this direction
The oil mist is separated and captured by colliding with the continuous capture piece 5h that extends from the 5i beyond the outer end of the disc portion 2 to the rear position of the disc portion 2.
【0010】また、モータ軸1を固定した円板部2の前
方に中央部が開口部3となったリング状板部4を対向配
置し、リング状板部4と円板部2との間に前面視でく字
状に屈曲した羽根部5を放射状に複数枚架設すると共に
羽根部5の屈曲部5aよりも外側部分5bの前端部5d
と後端部5eとを回転方向に対してずらし、円板部2の
外周端部を前方に向けて屈曲して捕捉用屈曲片2aを形
成して成ることを特徴とするものであってもよい。この
ような構成とすることで、気体よりも重いオイルミスト
の凝集物はファン6の遠心力によりファン6の外周方向
に飛ばされ,オイルミストの凝集物が分離された気体は
屈曲部5aよりも外側部分5bにガイドされて斜め後方
に送られるものであるが、この際、円板部2の前面に沿
って流れるオイルミストを含んだ気体は捕捉用屈曲片2
aに衝突してオイルミストが分離捕捉されると共に気体
は向きを変えて羽根部5側に流れてバッフル効果により
更にオイルミストが分離捕捉されるものである。A ring-shaped plate portion 4 having an opening 3 at the center is disposed in front of the disk portion 2 to which the motor shaft 1 is fixed. A plurality of blade portions 5 that are bent in a V shape in a front view are radially installed, and a front end portion 5d of a portion 5b outside the bent portion 5a of the blade portion 5 is formed.
And the rear end portion 5e are deviated from each other in the rotational direction, and the outer peripheral end portion of the disc portion 2 is bent forward to form the bent bent piece 2a for capturing. Good. With such a configuration, the oil mist aggregates heavier than the gas are blown toward the outer peripheral direction of the fan 6 by the centrifugal force of the fan 6, and the gas from which the oil mist aggregates are separated is separated from the bent portion 5a. The gas is guided by the outer portion 5b and is sent obliquely rearward. At this time, the gas containing the oil mist flowing along the front surface of the disc portion 2 is caught by the bending piece 2 for trapping.
The oil mist collides with a and is separated and captured, and the gas changes its direction and flows toward the blade portion 5 side, and the oil mist is further separated and captured by the baffle effect.
【0011】[0011]
【0012】[0012]
【発明の実施の形態】以下、本発明を添付図面に示す実
施形態に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.
【0013】図1、図2、図3には本発明のファン6の
一実施形態が示してある。ファン6は、円板部2の中心
にモータ軸1を固定するようになっており、この円板部
2の前方に中央部が開口部3となったリング状板部4を
対向配置し、リング状板部4と円板部2との間に前面視
でく字状に屈曲した羽根部5を放射状に複数架設して構
成してある。ここで、く字状に屈曲した羽根部5の屈曲
部5aよりも外側部分5bの後部が円板部2の外端を越
えて円板部2の後方位置まで連出してある。つまり、く
字状に屈曲した羽根部5は、屈曲部5aよりも外側部分
5bの後部が円板部2の外周端よりも外方向に突出させ
てあって外方突出部5iとなっており、この外方突出部
5iから円板部2の外端を越えて円板部2の後方に向け
て連出捕捉片5hを連出してある。また、このく字状に
屈曲した羽根部5の屈曲部5aよりも外側部分5bが屈
曲部5aよりも内側部分5bに対して捩ってあって、回
転方向に対して屈曲部5aよりも外側部分5bの前端部
5dと後端部5e(連出捕捉片5hの後端部)とがずれ
るように傾斜させてある。すなわち、ファン6の回転方
向の先の方に外方突出部5iの前端部5dが位置し且つ
回転方向の後の方に後端部5eが位置している。ここ
で、羽根部5の屈曲部5aが直線でこの屈曲部5aの外
側部分5bの断面を直線状としてあるが、屈曲部5aを
弧状とし、屈曲部5aよりも外側部分5bの断面を弧状
となるようにしてもよいものである。FIG. 1, FIG. 2 and FIG. 3 show an embodiment of the fan 6 of the present invention. The fan 6 is configured to fix the motor shaft 1 to the center of the disc portion 2, and a ring-shaped plate portion 4 having an opening 3 at the central portion is arranged in front of the disc portion 2 so as to face each other. Between the ring-shaped plate portion 4 and the circular plate portion 2, a plurality of blade portions 5 bent in a dogleg shape in a front view are radially installed. Here, the rear portion of the outer portion 5b of the blade portion 5 that is bent in a dogleg shape extends beyond the outer end of the disc portion 2 to the rear position of the disc portion 2. That is, in the blade portion 5 bent in a dogleg shape, the rear portion of the outer side portion 5b beyond the bent portion 5a is projected outward from the outer peripheral end of the disc portion 2 to form an outward protruding portion 5i. A continuous capture piece 5h is continuously extended from the outward protruding portion 5i beyond the outer end of the disc portion 2 toward the rear of the disc portion 2. Further, the outer side portion 5b of the blade portion 5 bent in the V-shape is twisted with respect to the inner side portion 5b of the bent portion 5a, and the outer side of the bent portion 5a is outside of the bent portion 5a. The front end portion 5d and the rear end portion 5e (the rear end portion of the continuous capture piece 5h) of the portion 5b are inclined so that they are displaced from each other. That is, the front end portion 5d of the outward projecting portion 5i is located on the front side in the rotation direction of the fan 6, and the rear end portion 5e is located on the rear side in the rotation direction. Here, although the bent portion 5a of the blade portion 5 is a straight line and the outer portion 5b of the bent portion 5a has a straight cross section, the bent portion 5a has an arc shape and the outer portion 5b of the bent portion 5a has a cross section. You may make it become.
【0014】また、本実施形態においては、く字状に屈
曲した羽根部5の屈曲部5aよりも内側部分5cの端縁
部の前端部5fをリング状板部4の開口部3の縁に位置
させ、羽根部5の内側部分5cの端縁部を、モータ軸1
から羽根部5の屈曲部5aよりも内側部分5cの前端5
fまでの距離よりもモータ軸1から羽根部5の屈曲部5
aよりも内側部分5cの後端5gまでの距離が次第に短
くなるように設定してある。Further, in this embodiment, the front end portion 5f of the end edge portion of the inner portion 5c of the bent blade portion 5 is bent to the edge of the opening 3 of the ring-shaped plate portion 4. The blade portion 5 is positioned so that the edge of the inner portion 5c of the blade portion 5 is connected to the motor shaft 1
The front end 5 of the inner portion 5c of the blade portion 5 from the bent portion 5a
The bent portion 5 of the blade portion 5 from the motor shaft 1 than the distance to f
The distance to the rear end 5g of the inner portion 5c from a is set to be gradually shorter.
【0015】上記のような構成のファン6は例えばオイ
ルミスト除去用として使用される。例えば、図4に示す
ようなオイルミスト除去装置7のファンとして使用する
ことができるものである。The fan 6 having the above structure is used for removing oil mist, for example. For example, it can be used as a fan of the oil mist removing device 7 as shown in FIG.
【0016】図4に示すオイルミスト除去装置7は、箱
体8の外面部に吸入口9と排出口10とを設けてあり、
箱体8内には前部に大径粒子分離捕捉室11が設けてあ
り、中間部に小径粒子分離捕捉室12が設けてあり、更
に、後部の一部に消音・捕捉室13とモータ収納室14
とが設けてあり、大径粒子分離捕捉室11と小径粒子分
離捕捉室12との間にフィルタ収納室15が設けてあ
る。そして、吸入口9が大径粒子分離捕捉室11に開口
して連通し、排出口10が消音・捕捉室13に開口して
連通しており、吸入口9→大径粒子分離捕捉室11→フ
ィルタ収納室15→小径粒子分離捕捉室12→消音・捕
捉室13→排出口10という気体が流れる経路が形成し
てあって、該経路が吸入口9と排出口10との間を連通
するための通気路16となっている。The oil mist removing device 7 shown in FIG. 4 is provided with a suction port 9 and a discharge port 10 on the outer surface of a box body 8.
A large-diameter particle separation / trapping chamber 11 is provided in the front portion of the box body 8, a small-diameter particle separation / trapping chamber 12 is provided in the middle portion thereof, and a muffling / trapping chamber 13 and a motor housing are provided in a part of the rear portion. Room 14
And a filter storage chamber 15 is provided between the large-diameter particle separation / trapping chamber 11 and the small-diameter particle separation / trapping chamber 12. Then, the suction port 9 opens and communicates with the large-diameter particle separation / capture chamber 11, and the discharge port 10 opens and communicates with the muffling / capture chamber 13. There is formed a path through which the gas flows, that is, the filter storage chamber 15 → the small diameter particle separation / capture chamber 12 → the muffling / capturing chamber 13 → the discharge port 10, and the path communicates between the suction port 9 and the discharge port 10. The ventilation passage 16 is
【0017】箱体8内の前部に形成される大径粒子分離
捕捉室11の前方側の側面部(つまり箱体8の前面部)
はほぼ全面が開口部17となっていて、該開口部17に
は前蓋18がビスにより着脱自在に取付けてあり、前蓋
18を取付けることで大径粒子分離捕捉室11の前方側
の側面部が前蓋18により構成されることになる。大径
粒子分離捕捉室11の上記前蓋18と対向する側面部
(つまり後ろ側の側面部)もほぼ全面が開口部17’と
なっており、この開口部17’にフィルタ19が配置し
てある。大径粒子分離捕捉室11のフィルタ19を配置
した側面部と交差する方向の側面部である他の4側面部
(つまり、前後を除く上下左右の4側面部)のうち一つ
の側面部に吸入口9が設けてある。添付図面に示す実施
形態においては大径粒子分離捕捉室11の上の側面部に
吸入口9が設けてあり、更に、この吸入口9は上の側面
部の左右方向のいずれかの端部側にずれて形成してあ
る。A front side surface portion of the large-diameter particle separation / trapping chamber 11 formed in the front portion of the box body 8 (that is, the front surface portion of the box body 8).
Has an opening 17 almost entirely, and a front lid 18 is detachably attached to the opening 17 with a screw. By attaching the front lid 18, a front side surface of the large-diameter particle separation / trapping chamber 11 is attached. The part is constituted by the front lid 18. The side surface (that is, the rear side surface) of the large-diameter particle separation / capturing chamber 11 that faces the front lid 18 also has an opening 17 'on almost the entire surface, and the filter 19 is arranged in this opening 17'. is there. Intake into one of the other four side surface portions (that is, the four side surface portions on the left, right, top and bottom excluding the front and rear) that are the side surface portions in the direction intersecting with the side surface portion in which the filter 19 of the large particle separation / trapping chamber 11 is arranged. A mouth 9 is provided. In the embodiment shown in the accompanying drawings, a suction port 9 is provided on the side surface above the large-diameter particle separation / trapping chamber 11, and the suction port 9 is located on either side of the upper side surface in the left-right direction. It is formed so as to be offset.
【0018】フィルタ収納室15にはフィルタ支持部2
0が設けてあり、該フィルタ支持部20にはフィルタ1
9がいわゆるけんどん式により着脱自在に取付けてあ
る。ここで、フィルタ19の取付け、取り外しに当たっ
ては、開口部17と対向する前蓋18を外して開口部1
7をオープンとしてフィルタ19の取付け、取り外しを
行うものである。The filter accommodating chamber 15 has a filter supporting portion 2
0 is provided, and the filter supporting portion 20 has a filter 1
9 is a so-called kendon type and is detachably attached. Here, when attaching and detaching the filter 19, the front lid 18 facing the opening 17 is removed and the opening 1
The filter 19 is attached and detached by setting 7 open.
【0019】フィルタ19は気体の流れ方向に複数個並
設されるものである。そして、前のフィルタ19は金属
板を屈曲して形成した屈曲流路を有するフィルタ19a
により構成してあり、後ろのフィルタ19は不織布より
なるフィルタ19bにより構成してある。ここで、添付
図面に示す実施形態においては、金属板21を屈曲して
形成した屈曲流路を有するフィルタ19aとして、図5
に示すように、断面略ヘ字状をし且つ吸入口9の開口方
向に長くなった金属板21(実施形態では吸入口9が上
の側面部にあるので上下方向に長くなった金属板21)
を並設して、略へ字状をしたへ字状流路22を形成した
ものにより構成してある。このへ字状流路22の前半部
はフィルタ19の前面に対して傾斜している。A plurality of filters 19 are arranged in parallel in the gas flow direction. The previous filter 19 is a filter 19a having a bent flow path formed by bending a metal plate.
The rear filter 19 is composed of a non-woven fabric filter 19b. Here, in the embodiment shown in the accompanying drawings, a filter 19a having a bent flow path formed by bending a metal plate 21 is provided as shown in FIG.
As shown in FIG. 5, the metal plate 21 has a substantially V-shaped cross section and is elongated in the opening direction of the suction port 9 (in the embodiment, since the suction port 9 is on the upper side surface portion, the metal plate 21 is vertically elongated). )
Are arranged side by side to form a substantially V-shaped V-shaped flow path 22. The front half of the V-shaped channel 22 is inclined with respect to the front surface of the filter 19.
【0020】フィルタ収納室15と小径粒子分離捕捉室
12との間には仕切り板23が設けてあり、小径粒子分
離捕捉室12の前面部の略中央部に設けた入口24が仕
切り板23の中央部において開口している。小径粒子分
離捕捉室12の外殻を構成するケーシング25は縦断面
円状をしており、内部に前述の本発明のファン6を内装
してある。ファン6のリング状板部4の中央部の開口部
3が仕切り板23に設けた入口24に対向している。ケ
ーシング25の後端部には消音・捕捉室13に連通する
連通部26が設けてある。A partition plate 23 is provided between the filter storage chamber 15 and the small diameter particle separation / trapping chamber 12, and an inlet 24 provided at a substantially central portion of the front surface of the small diameter particle separation / trapping chamber 12 has a partition plate 23. It opens at the center. The casing 25, which constitutes the outer shell of the small-diameter particle separation / trapping chamber 12, has a circular cross section, and the fan 6 of the present invention described above is provided inside. The opening 3 at the center of the ring-shaped plate portion 4 of the fan 6 faces the inlet 24 provided in the partition plate 23. At the rear end of the casing 25, there is provided a communication section 26 that communicates with the muffling / capturing chamber 13.
【0021】消音・捕捉室13は前室13aと、後室1
3bとに分割してあり、後室13b内に筒状をした不織
布よりなる消音フィルタ27が配設してある。筒状をし
た不織布よりなる消音フィルタ27の前端部は前室13
aと後室13bとの間を仕切る仕切り13cに設けた環
状をした嵌め込み部13dに着脱自在に嵌め込んであ
り、筒状をした消音フィルタ27の後端部が後室13b
の後面部の開口部に着脱自在に取付けた後蓋28に支持
してある。そして、仕切り13cの環状の嵌め込み部1
3dに囲まれた部分に形成した孔部13eが筒状をした
消音フィルタ27の前部開口に連通している。The muffling / capturing chamber 13 is a front chamber 13a and a rear chamber 1
3b, and a silencer filter 27 made of a tubular non-woven fabric is provided in the rear chamber 13b. The front end portion of the silencer filter 27 made of a tubular non-woven fabric is provided in the front chamber 13.
The rear end portion of the cylindrical silencer filter 27 is detachably fitted into an annular fitting portion 13d provided in a partition 13c for partitioning between the a and the rear chamber 13b.
It is supported by a rear lid 28 that is detachably attached to the opening of the rear surface portion. And the annular fitting portion 1 of the partition 13c
A hole 13e formed in a portion surrounded by 3d communicates with a front opening of the silencer filter 27 having a cylindrical shape.
【0022】モータ収納室14内にはモータ29が収納
してあり、モータ29のモータ軸1がケーシング25内
に突入していて、該モータ軸1に前述のようにファン6
が取付けられるものである。A motor 29 is housed in the motor housing chamber 14, the motor shaft 1 of the motor 29 projects into the casing 25, and the fan 6 is inserted into the motor shaft 1 as described above.
Is attached.
【0023】図4、図5に示すように、箱体8の下面部
には支持枠部30が設けてあり、支持枠部30にオイル
パン31が引出し自在に取付けてある。箱体8の下面部
の複数箇所、例えば、大径粒子分離捕捉室11、フィル
タ収納室15、小径粒子分離捕捉室12に底面部分に相
当する箇所に排出孔32を設けて、これらの大径粒子分
離捕捉室11、フィルタ収納室15、小径粒子分離捕捉
室12内で捕捉したオイルを排出孔32を介してオイル
パン31に排出してオイルパン31に回収するようにな
っている。そして、メンテナンス等の際にはオイルパン
31を引き出してメンテナンス等をするようになってい
る。ここで、オイルパン31を引き出してメンテナンス
できるので、粘性の高い油を捕捉した場合に、オイルパ
ン31の油排出口(図示せず)が目詰まりするのを防止
できる。As shown in FIGS. 4 and 5, a support frame portion 30 is provided on the lower surface of the box body 8, and an oil pan 31 is attached to the support frame portion 30 so as to be drawn out. Discharge holes 32 are provided at a plurality of locations on the lower surface of the box body 8, for example, the large-diameter particle separation / trapping chamber 11, the filter storage chamber 15, and the small-diameter particle separation / trapping chamber 12 at positions corresponding to the bottom surface, and these large diameters The oil captured in the particle separation / capture chamber 11, the filter storage chamber 15, and the small diameter particle separation / capture chamber 12 is discharged to the oil pan 31 through the discharge hole 32 and is collected in the oil pan 31. When performing maintenance or the like, the oil pan 31 is pulled out to perform maintenance or the like. Here, since the oil pan 31 can be pulled out and maintained, it is possible to prevent the oil discharge port (not shown) of the oil pan 31 from being clogged when highly viscous oil is captured.
【0024】しかして、上記のような構成のオイルミス
ト除去装置により例えば旋盤や研削盤等のオイルミスト
発生源から発生するオイルミストを除去するのである
が、本発明によるオイルミストの除去は以下のようにし
て行われる。Therefore, the oil mist removing device having the above-mentioned structure removes the oil mist generated from the oil mist generating source such as a lathe or a grinding machine. The oil mist according to the present invention is removed as follows. Is done in this way.
【0025】すなわち、モータ29を回転してファン6
を回転すると、オイルミストを含んだ気体がフード(図
示せず)、ダクト(図示せず)を経て吸入口9から大径
粒子分離捕捉室11に流れ込む。吸入口9から大径粒子
分離捕捉室11に流れ込んだオイルミストを含んだ気体
は、大径粒子分離捕捉室11の側面部のうち吸入口9を
設けた側面部と対向する側面部に衝突して図4矢印イの
ように旋回し、更に、このように吸入口9と対向する大
径粒子分離捕捉室11の側面部に衝突して方向転換して
旋回した気体はフィルタ19の前面側に向けて更に側方
に向きを変えるように旋回し(図4、図5において矢印
ロ)、このように何回も方向転換して旋回することと側
面部に衝突することで、気体中に含まれる粒径の大きい
オイルミストや切粉や砥石粉等の大粒子が気体から振り
切られて分離されることになる。That is, the motor 29 is rotated to rotate the fan 6
When is rotated, the gas containing the oil mist flows into the large particle separation and capture chamber 11 from the suction port 9 through the hood (not shown) and the duct (not shown). The gas containing the oil mist flowing from the suction port 9 into the large diameter particle separation / trapping chamber 11 collides with a side surface portion of the large diameter particle separation / trapping chamber 11 which is opposite to the side surface portion provided with the suction port 9. The gas that swirls as shown by the arrow A in FIG. 4 and further collides with the side surface of the large-diameter particle separation / trapping chamber 11 facing the suction port 9 and turns to swirl toward the front surface of the filter 19. It swirls so as to turn further toward the side (arrows B in FIGS. 4 and 5), and in this way, by swirling by turning many times and colliding with the side surface part, it is included in the gas. Large particles such as oil mist having a large particle diameter and chips and grinding stone powder are shaken off from the gas and separated.
【0026】ここで、図5のように、フィルタ19が断
面略ヘ字状をし且つ吸入口9の開口方向に長くなった金
属板21を並設して、略へ字状をしたへ字状流路22を
形成したものにより構成され、へ字状流路22の前半部
がフィルタ19の前面に対して傾斜している構成として
あるので、気体がフィルタ19の前面側に向けて更に側
方に向きを変えるように旋回する際、気体はフィルタ1
9の前面に対して図5の矢印ハのように直角方向に流れ
るのではなく、矢印ロのようにフィルタ19の前面に対
して斜め方向から流れ込むことになって、旋回する際の
方向転換の角度が急になって、旋回によって気体中に含
まれる粒径の大きいオイルミストや切粉や砥石粉等の大
粒子を気体から振り切る効率がより向上するようになっ
ている。Here, as shown in FIG. 5, the filter 19 has a substantially V-shaped cross section, and a metal plate 21 elongated in the opening direction of the suction port 9 is arranged in parallel to form a substantially V-shaped V-shape. Since the front half of the V-shaped channel 22 is inclined with respect to the front surface of the filter 19, the gas is further divided toward the front surface side of the filter 19. As it swirls to turn towards
9 does not flow in the direction perpendicular to the front surface of FIG. 5 as indicated by arrow C in FIG. As the angle becomes steeper, the efficiency of shaking off large particles such as oil mist and chips and grindstone powder contained in the gas due to the swirling from the gas is further improved.
【0027】上記のようにして気体を何回も方向転換さ
せて旋回させることで、粒径の大きいオイルミストや切
粉や砥石粉等の大粒子が振り切られた気体は、次に、フ
ィルタ19に流れ込むのであるが、まず、金属板9を屈
曲して形成した屈曲流路を有するフィルタ19aを通過
し、次に、不織布よりなるフィルタ19bを通過し、そ
の後、大径粒子分離捕捉室11の前面部の略中央部に設
けた入口24に流れ込むものである。The gas in which large particles such as oil mist having large particle diameters and chips and grindstone powder are shaken off by turning and swirling the gas many times as described above is next filtered. First, it passes through a filter 19a having a bent flow path formed by bending the metal plate 9 and then a filter 19b made of a non-woven fabric, and then, in the large-diameter particle separation and capture chamber 11. It flows into an inlet 24 provided at a substantially central portion of the front surface portion.
【0028】ここで、屈曲流路を有するフィルタ19a
を気体が通過する際、バッフル効果により、つまり、気
体がへ字状流路22の側壁を構成する金属板9に衝突
し、これにより中程度の粒径のオイルミストが分離捕捉
されることになるのである。この場合、前述の大径粒子
分離捕捉室11内における気体の何回にもわたる方向転
換によって、気体中に含まれる粒径の大きいオイルミス
トや切粉や砥石粉等の大粒子が振り切られて分離される
のであるが、この時、分離されきらずに一部の切粉や砥
石粉が気体に含まれてフィルタ19に流れ込んでも、上
記屈曲流路を流れる際における金属板9への衝突と方向
転換によって、残りの切粉や砥石粉が気体から分離さ
れ、このように切粉や砥石粉が分離された気体が次に不
織布よりなるフィルタ19bに流れることで、気体中の
中程度の粒径のオイルミストが捕捉されるものである。
そして、不織布よりなるフィルタ19bに至る前に上記
のように切粉や砥石粉が分離されされているので、切粉
や砥石粉によって不織布よりなるフィルタ19bが目詰
まりすることがなく、したがって、不織布よりなるフィ
ルタ19bの掃除、交換等までの期間を長くできるもの
である。Here, the filter 19a having a bent channel is provided.
When the gas passes through, the gas collides with the metal plate 9 forming the side wall of the V-shaped flow path 22 due to the baffle effect, whereby the oil mist having a medium particle size is separated and captured. It will be. In this case, due to the direction change of the gas in the large-diameter particle separation / capture chamber 11 described above many times, large particles such as oil mist and chips and grindstone powder contained in the gas are shaken off. At this time, even if some cutting chips or grindstone powder are contained in the gas and flow into the filter 19 without being completely separated, at this time, the collision and the direction to the metal plate 9 at the time of flowing through the bending flow path. By the conversion, the remaining chips and grindstone powder are separated from the gas, and the gas thus separated from the chips and grindstone powder then flows to the filter 19b made of a non-woven fabric, so that the medium particle size in the gas is reduced. The oil mist of is captured.
Since the cutting chips and the grindstone powder are separated as described above before reaching the filter 19b composed of the non-woven fabric, the filter 19b composed of the non-woven fabric is not clogged by the cutting chips and the grindstone powder, and therefore the non-woven fabric is formed. It is possible to lengthen the period until the cleaning and replacement of the filter 19b made up of.
【0029】上記のように粒径の大きいオイルミストや
切粉や砥石粉等の大粒子が振り切られ、更に、中程度の
オイルミストを捕捉して除去された気体が大径粒子分離
捕捉室11の前面部の略中央部に設けた入口24に流れ
込み、大径粒子分離捕捉室11においてファン6の回転
による遠心力によって気体から粒径の小さいオイルミス
トが分離捕捉されることになる。As described above, large mist particles such as oil mist or large particles such as chips and grindstone particles are shaken off, and the gas removed by capturing medium oil mist is separated into the large particle separation and capturing chamber 11 The oil mist having a small particle size is separated and captured from the gas by the centrifugal force generated by the rotation of the fan 6 in the large-diameter particle separation / capturing chamber 11, which flows into the inlet 24 provided at the substantially central portion of the front surface of the.
【0030】すなわち、入口24から流れ込んだ気体は
ファン6のリング状板部4の中央部の開口部3からファ
ン6のリング状板部4と円板部2との間に流れ込み、く
字状に屈曲した羽根部5に沿って流れ、この際、羽根部
5に屈曲部5aが設けてあるので、く字状の羽根部5の
バッフル効果によりオイルミストを含んだ気体の流れる
向きが変えられながら羽根部5bに衝突して気体から粒
径の小さいオイルミストが凝集分離され、そしてく字状
に屈曲した羽根部5は、く字状に屈曲した羽根部5の屈
曲部5aよりも外側部分5bの後部を円板部2の外端を
越えて円板部2の後方位置まで連出し、この羽根部5の
屈曲部5aよりも外側部分5bの前端部5dと後端部5
eとを回転方向に対してずらしてある(つまり、く字状
に屈曲した羽根部5の屈曲部5aよりも外側部分5bが
屈曲部5aよりも内側部分5cに対して捩じってあっ
て、回転方向に対して屈曲部5aよりも外側部分5bの
前端縁5dと後端縁5eとがずれるように傾斜させてあ
る)ので、気体に比べ重いオイルミストの凝集物がファ
ン6の遠心力によりファン6の外周方向に飛ばされてフ
ァン6の外側部分5bに衝突して気体から分離捕捉され
るが、オイルミストの凝集物が分離された気体は回転方
向に対して屈曲部5aよりも外側部分5bの前端縁5d
と後端縁5eとがずらした羽根部5の外側部分5bにガ
イドされて後方に流れるものである。That is, the gas flowing from the inlet 24 flows from the opening 3 at the center of the ring-shaped plate portion 4 of the fan 6 between the ring-shaped plate portion 4 of the fan 6 and the disc portion 2 to form a dogleg shape. Flow along the curved blade portion 5. At this time, since the blade portion 5 is provided with the curved portion 5a, the flow direction of the gas containing oil mist can be changed by the baffle effect of the dogleg shaped blade portion 5. While colliding with the blade portion 5b, oil mist having a small particle size is coagulated and separated from the gas, and the blade portion 5 bent in a dogleg shape is located outside the bent portion 5a of the blade portion 5 bent in a dogleg shape. The rear portion 5b extends beyond the outer end of the disc portion 2 to the rear position of the disc portion 2, and the front end portion 5d and the rear end portion 5 of the outer portion 5b of the blade portion 5 are bent.
and e are shifted with respect to the rotation direction (that is, the outer portion 5b of the blade portion 5 bent in a dogleg shape is twisted with respect to the inner portion 5c of the bent portion 5a. , The front end edge 5d and the rear end edge 5e of the outer portion 5b with respect to the rotational direction are inclined so as to deviate from each other, the aggregate of oil mist heavier than the gas is centrifugal force of the fan 6. Is blown in the outer peripheral direction of the fan 6 and collides with the outer portion 5b of the fan 6 to be separated and captured from the gas, but the gas from which the aggregate of the oil mist is separated is outside the bent portion 5a with respect to the rotation direction. Front edge 5d of part 5b
The trailing edge 5e and the trailing edge 5e are guided by the offset outer portion 5b of the blade portion 5 and flow backward.
【0031】この場合、本実施形態においては、羽根部
5の屈曲部5aよりも外側部分5bの後部を円板部2の
外端を越えて円板部2の後方位置まで連出して連出捕捉
片5hを形成してあるので、連出捕捉片5hの分だけバ
ッフル面積を広くできるものであり、この結果、バッフ
ル効果が大となって、気体から粒径の小さいオイルミス
トが凝集分離効果を向上させることができるものであ
り、また、円板部2の前面に沿って流れるオイルミスト
を含んだ気体は円板部2の外周端を経て流れるが、この
円板部2の外周端を経て流れた気体は図3の矢印のよう
に円板部2の後方位置まで連出した連出捕捉片5hに衝
突してオイルミストが分離捕捉されるものであって、こ
の点でもオイルミストの分離捕捉効果が向上するもので
ある。つまり、円板部2の前面に沿って流れるオイルミ
ストを含んだ気体が円板部2の外周端を越えてオイルミ
ストを捕捉されることなく後方にショートパスするのが
防止されるものである。In this case, in this embodiment, the rear portion of the outer side portion 5b of the blade portion 5 beyond the bent portion 5a is continuously extended to the rear position of the disc portion 2 beyond the outer end of the disc portion 2. Since the trapping piece 5h is formed, the baffle area can be widened by the continuous trapping piece 5h, and as a result, the baffle effect becomes large and the oil mist having a small particle size is condensed and separated from the gas. Further, the gas containing the oil mist flowing along the front surface of the disc portion 2 flows through the outer peripheral end of the disc portion 2, but the outer peripheral end of the disc portion 2 is The gas flowing therethrough collides with the continuous capture piece 5h continuous to the rear position of the disc portion 2 as shown by the arrow in FIG. 3, and the oil mist is separated and captured. The separation and capture effect is improved. That is, the gas containing the oil mist flowing along the front surface of the disc portion 2 is prevented from passing the outer peripheral edge of the disc portion 2 and short-passing backward without being trapped by the oil mist. .
【0032】また、く字状に屈曲した羽根部5の屈曲部
5aよりも内側部分5cの端縁部の前端部5fをリング
状板部4の開口部3の縁に位置させ、羽根部5の内側部
分5cの端縁部5gを、モータ軸1から羽根部5の屈曲
部5aよりも内側部分5cの前端までの距離よりもモー
タ軸1から羽根部5の屈曲部5aよりも内側部分5cの
後端までの距離が次第に短く設定してあるので、リング
状板部4の中央部の開口部3から吸入されたオイルミス
トを含んだ気体は、開口部3の入口側(前側)よりも奥
側(後側)が抵抗が大きくなり、したがって、開口部3
からリング状板部4と円板部5との間にオイルミストを
含んだ気体が流れるに当たってリング状板部4側も円板
部5側もほぼ等しい流量で流れることとなり、リング状
板部4と円板部5との間でオイルミストの分布が均一な
状態で流すことができることになり、羽根部5全体を有
効に利用してオイルミストの分離捕捉効果を向上できる
ものである。Further, the front end portion 5f of the edge portion of the inner portion 5c of the bent blade portion 5 of the V-shaped blade portion 5 is located at the edge of the opening 3 of the ring-shaped plate portion 4, and the blade portion 5 is formed. Of the inner edge 5g of the inner portion 5c of the motor shaft 1 from the bent portion 5a of the blade portion 5 to the front end of the inner portion 5c of the blade portion 5 from the motor shaft 1 to the inner portion 5c of the blade portion 5c Since the distance to the rear end is set to be gradually shorter, the gas containing the oil mist sucked from the opening 3 at the center of the ring-shaped plate portion 4 is more likely to be discharged than the inlet side (front side) of the opening 3. The resistance increases on the back side (rear side), so that the opening 3
When the gas containing the oil mist flows between the ring-shaped plate portion 4 and the disk portion 5, the ring-shaped plate portion 4 side and the disk portion 5 side flow at substantially the same flow rate. The oil mist can be made to flow in a uniform state between the disk part 5 and the disk part 5, and the effect of separating and capturing the oil mist can be improved by effectively utilizing the entire blade part 5.
【0033】上記のようにして大径粒子分離捕捉室11
において粒径の大きいオイルミストや切粉や砥石粉等の
大粒子が振り切られ、更に、フィルタ19により中程度
のオイルミストが除去され、更に、ファン6の回転によ
る遠心力によって粒径の小さいオイルミストが除去され
た気体は、連通部26から消音・捕捉室13の前室13
aに流れ込み、孔部13eから筒状をした不織布からな
る消音フィルタ27の内部に流れ込み、筒状をした不織
布からなる消音フィルタ27の周囲部から外部に流出
し、排出口10から外部に排出されるものである。ここ
で、気体が消音フィルタ27を内側から外側に通過する
際に、消音されると共に、最終段階におけるオイルミス
トの捕捉が行われることになる。As described above, the large particle separation / trapping chamber 11
In the above, large particles of oil mist and large particles such as cutting powder and grindstone powder are shaken off, and further, medium oil mist is removed by the filter 19, and further, oil of small particle diameter is generated by centrifugal force due to rotation of the fan 6. The gas from which the mist has been removed flows from the communication section 26 into the front chamber 13 of the muffling / capturing chamber 13.
a into the sound absorbing filter 27 made of a non-woven fabric having a cylindrical shape through the hole 13e, flowing out from the peripheral portion of the sound absorbing filter 27 made of a non-woven fabric having a cylindrical shape, and discharged from the discharge port 10 to the outside. It is something. Here, when the gas passes through the sound deadening filter 27 from the inside to the outside, the sound is muted and the oil mist is captured in the final stage.
【0034】なお、大径粒子分離捕捉室11、フィルタ
収納室15、小径粒子分離捕捉室12で捕捉されたオイ
ルミストは凝集して各室の内壁に沿って流れ、排出孔3
2からオイルパン31に回収するものである。The oil mist trapped in the large-diameter particle separation / capture chamber 11, the filter storage chamber 15, and the small-diameter particle separation / capture chamber 12 aggregates and flows along the inner wall of each chamber, and the discharge hole 3
The oil is collected from 2 in the oil pan 31.
【0035】次に、図6、図7、図8に基づいて本発明
のファン装置の他の実施形態につき説明する。Next, another embodiment of the fan device of the present invention will be described with reference to FIGS. 6, 7 and 8.
【0036】本実施形態においては、ファン6は、円板
部2の中心にモータ軸1に固定し、この円板部2の前方
に中央部が開口部3となったリング状板部4を対向配置
し、リング状板部4と円板部2との間に前面視でく字状
に屈曲した羽根部5を放射状に複数架設して構成してあ
る。ここで、く字状に屈曲した羽根部5は、屈曲部5a
よりも外側部分5bの後部が円板部2の外周端よりも外
方向に突出させてあり、このく字状に屈曲した羽根部5
の屈曲部5aよりも外側部分5bが屈曲部5aよりも内
側部分5bに対して捩ってあって、回転方向に対して屈
曲部5aよりも外側部分5bの前端部5dと後端部5e
とがずれるように傾斜させてある。すなわち、ファン6
の回転方向の先の方に前端部5dが位置し且つ回転方向
の後の方に後端部5eが位置している。ここで、羽根部
5の屈曲部5aが直線でこの屈曲部5aの外側部分5b
の断面を直線状としてあるが、屈曲部5aを弧状とし、
屈曲部5aよりも外側部分5bの断面を弧状となるよう
にしてもよいものである。また、本実施形態において
は、円板部2の外周端部が前方に向けて屈曲して(添付
図面に示す実施形態においては、斜め前外方に向けて傾
斜するように屈曲して)あって捕捉用屈曲片2aを形成
してある。In the present embodiment, the fan 6 is fixed to the motor shaft 1 at the center of the disc portion 2, and the ring-shaped plate portion 4 having the opening 3 at the center is provided in front of the disc portion 2. A plurality of blade portions 5 which are arranged to face each other and which are bent in a V shape in a front view are radially installed between the ring-shaped plate portion 4 and the circular disc portion 2. Here, the blade portion 5 bent in a dogleg shape has a bent portion 5a.
The rear portion of the outer portion 5b is protruded outward from the outer peripheral end of the disc portion 2, and the blade portion 5 is bent in a dogleg shape.
The outer portion 5b of the bent portion 5a is twisted with respect to the inner portion 5b of the bent portion 5a, and the front end portion 5d and the rear end portion 5e of the outer portion 5b of the bent portion 5a with respect to the rotation direction.
It is slanted so that it will slip off. That is, the fan 6
The front end portion 5d is located on the front side in the rotation direction and the rear end portion 5e is located on the rear side in the rotation direction. Here, the bent portion 5a of the blade portion 5 is a straight line, and the outer portion 5b of this bent portion 5a.
Has a linear cross section, but the bent portion 5a has an arc shape,
The cross section of the outer portion 5b with respect to the bent portion 5a may be arcuate. Further, in the present embodiment, the outer peripheral end portion of the disk portion 2 is bent forward (in the embodiment shown in the accompanying drawings, bent so as to be inclined forward and outward). And a bent bent piece 2a for capturing is formed.
【0037】上記のような構成のファン6は例えば前述
の実施形態のファン6と同様にオイルミスト除去用とし
て使用される。例えば、図9、図10に示すようなオイ
ルミスト除去装置7のファンとして使用することができ
るものである。図9、図10に示すオイルミスト除去装
置7はファン6の構成及び作用を除き他の構成、作用は
前述の図4、図5に示すオイルミスト除去装置7と同様
であるので、重複する説明は省略し、異なる点について
のみ説明する。The fan 6 having the above-described structure is used for removing oil mist, like the fan 6 of the above-described embodiment. For example, it can be used as a fan of the oil mist removing device 7 as shown in FIGS. 9 and 10. The oil mist removing device 7 shown in FIGS. 9 and 10 has the same structure and operation as the oil mist removing device 7 shown in FIGS. Will be omitted and only different points will be described.
【0038】すなわち、図9、図10に示す実施形態に
おいては、図6乃至図8に示すようなファン6を使用し
ているので、入口24から流れ込んだ気体はファン6の
リング状板部4の中央部の開口部3からファン6のリン
グ状板部4と円板部2との間に流れ込み、く字状に屈曲
した羽根部5に沿って流れ、この際、羽根部5に屈曲部
5aが設けてあるので、く字状の羽根部5のバッフル効
果によりオイルミストを含んだ気体の流れる向きが変え
られながら羽根部5bに衝突して気体から粒径の小さい
オイルミストが凝集分離され、そしてく字状に屈曲した
羽根部5は、つまり、く字状に屈曲した羽根部5の屈曲
部5aよりも外側部分5bが屈曲部5aよりも内側部分
5cに対して捩じってあって、回転方向に対して屈曲部
5aよりも外側部分5bの前端縁5dと後端縁5eとが
ずれるように傾斜させてあるので、気体に比べ重いオイ
ルミストの凝集物がファン6の遠心力によりファン6の
外周方向に飛ばされてファン6の外周部分5bに衝突し
て気体から分離捕捉されるが、オイルミストの凝集物が
分離された気体は回転方向に対して屈曲部5aよりも外
側部分5bの前端縁5dと後端縁5eとがずらした羽根
部5の外側部分5bにガイドされて後方に流れるもので
ある。That is, in the embodiment shown in FIGS. 9 and 10, since the fan 6 as shown in FIGS. 6 to 8 is used, the gas flowing from the inlet 24 has the ring-shaped plate portion 4 of the fan 6. Flows into the space between the ring-shaped plate portion 4 and the disk portion 2 of the fan 6 from the opening 3 at the center of the fan 6, and flows along the blade portion 5 that is bent in a dogleg shape. Since 5a is provided, the baffle effect of the V-shaped blade portion 5 changes the flowing direction of the gas containing the oil mist and collides with the blade portion 5b to separate the oil mist having a small particle size from the gas. In addition, the vane portion 5 bent in a dogleg shape has the outer portion 5b of the vane portion 5 bent in a dogleg shape twisted with respect to the inner portion 5c of the bent portion 5a. The outer side of the bent portion 5a with respect to the rotation direction. Since the front end edge 5d and the rear end edge 5e of 5b are inclined so that they are displaced from each other, aggregates of oil mist that are heavier than gas are blown toward the outer peripheral direction of the fan 6 by the centrifugal force of the fan 6 and Although it collides with the portion 5b and is separated and captured from the gas, the gas from which the aggregate of the oil mist is separated shifts the front end edge 5d and the rear end edge 5e of the outer portion 5b from the bent portion 5a with respect to the rotation direction. The blades 5 are guided by the outer portion 5b of the blade portion 5 and flow backward.
【0039】この場合、オイルミストを含んだ気体の一
部が円板部2の前面に沿って流れるが、この円板部2の
前面に沿って流れるオイルミストを含んだ気体は捕捉用
屈曲片2aに衝突してオイルミストが分離捕捉されると
共に捕捉用屈曲片2aにより斜め外前方に向きを変えて
羽根部5側に流れて羽根部5に衝突してバッフル効果に
より更にオイルミストが分離捕捉されるものである。つ
まり、本実施形態においては、円板部2の前面に沿って
流れるオイルミストを含んだ気体が円板部2の外周端を
越えてオイルミストを捕捉されることなく後方にショー
トパスするのが防止されるものである。In this case, a part of the gas containing the oil mist flows along the front surface of the disc portion 2. The gas containing the oil mist flowing along the front surface of the disc portion 2 captures the bent piece. 2a collides with the oil mist to be separated and captured, and the bending piece 2a for capturing changes the direction obliquely outward and forward to flow toward the blade portion 5 side to collide with the blade portion 5 to further separate and capture the oil mist by the baffle effect. It is what is done. That is, in the present embodiment, the gas containing the oil mist flowing along the front surface of the disc portion 2 may pass the outer peripheral edge of the disc portion 2 and short-pass backward without being trapped by the oil mist. It will be prevented.
【0040】本実施形態においても図示を省略している
が、く字状に屈曲した羽根部5の屈曲部5aよりも外側
部分5bの後部を円板部2の外端を越えて円板部2の後
方位置まで連出するようにしてもよいものである。Although not shown in the present embodiment, the rear portion of the outer portion 5b of the blade portion 5 which is bent in a V shape extends beyond the outer end of the disc portion 2 beyond the outer end of the disc portion 2. It is also possible to continuously extend to the rear position of 2.
【0041】また、本実施形態においても、く字状に屈
曲した羽根部5の屈曲部5aよりも内側部分5cの端縁
部の前端部5fをリング状板部4の開口部3の縁に位置
させ、羽根部5の内側部分5cの端縁部5gを、モータ
軸1から羽根部5の屈曲部5aよりも内側部分5cの前
端までの距離よりもモータ軸1から羽根部5の屈曲部5
aよりも内側部分5cの後端までの距離が次第に短く設
定してあり、羽根部5全体を有効に利用してオイルミス
トの分離捕捉効果を向上させるようにしてある。Also in this embodiment, the front end portion 5f of the end edge portion of the inner portion 5c of the bent blade portion 5 is bent to the edge of the opening 3 of the ring-shaped plate portion 4. The end portion 5g of the inner portion 5c of the blade portion 5 is positioned such that the end portion 5g of the blade portion 5 is located closer to the bent portion of the blade portion 5 than the distance from the motor shaft 1 to the front end of the inner portion 5c of the blade portion 5a. 5
The distance to the rear end of the inner portion 5c is set to be gradually shorter than a, and the entire blade portion 5 is effectively used to improve the separation and trapping effect of the oil mist.
【0042】[0042]
【発明の効果】上記のように本発明の請求項1記載の発
明にあっては、モータ軸を固定した円板部の前方に中央
部が開口部となったリング状板部を対向配置し、リング
状板部と円板部との間に前面視でく字状に屈曲した羽根
部を放射状に複数枚架設し、く字状に屈曲した羽根部の
屈曲部よりも外側部分の後部を円板部の外周端より外方
向に突出させて外方突出部とし、この外方突出部から円
板部の外端を越えて円板部の後方に向けて連出捕捉片を
連出し、この羽根部の屈曲部よりも外側部分の前端部と
後端部とを回転方向に対してずらしてあるので、気体よ
り重いオイルミストの凝集物はファンの遠心力によりフ
ァンの外周方向に飛ばされ、オイルミストの凝集物が分
離された気体は屈曲部よりも外側部分にガイドされて斜
め後方に送られて、ファンを通過する際に気体中からオ
イルミストが分離捕捉されるものであるが、この際、羽
根部の屈曲部よりも外側部分の後部を円板部の外周端よ
り外方向に突出させて外方突出部とし、この外方突出部
から円板部の外端を越えて円板部の後方に向けて連出捕
捉片を連出してあることで、連出捕捉片の分だけバッフ
ル面積を広くできて、簡単な構成でオイルミストの分離
捕捉効果を向上でき、更に、円板部の前面に沿って流れ
るオイルミストを含んだ気体は円板部の外周端より外方
向に突出させた外方突出部を経てこの外方突出部から円
板部の外端を越えて円板部の後方位置まで連出した連出
捕捉片に衝突してオイルミストが分離捕捉されるもので
あって、円板部の前面に沿って流れるオイルミストを含
んだ気体が円板部の外周端を越えてオイルミストを捕捉
されることなく後方にショートパスするのが防止でき
て、より効果的にオイルミストを分離捕捉することがで
きるものである。As described above, in the invention according to claim 1 of the present invention, the ring-shaped plate portion having an opening at the center is disposed in front of the disk portion to which the motor shaft is fixed. , Between the ring-shaped plate portion and the circular plate portion, a plurality of blade portions bent in a dogleg shape in a front view are radially installed, and the rear portion of the outer portion of the blade portion bent in a dogleg shape is placed. Outer than the outer edge of the disc
Project outward to form an outward protrusion, and from this outward protrusion a circle
Go over the outer edge of the plate and move the continuous capture piece toward the rear of the disk.
Since the front end portion and the rear end portion of the portion outside the bent portion of the blade portion are continuously displaced, the aggregate of oil mist heavier than the gas is directed toward the outer peripheral direction of the fan by the centrifugal force of the fan. The gas, which is blown to the air and separated from the oil mist aggregates, is guided to the outer side of the bent portion and sent obliquely backward, and the oil mist is separated and captured from the gas when passing through the fan. However, at this time, the rear part of the outer part than the bent part of the blade part is the outer peripheral end of the disc part .
And project outward to form an outward protrusion.
From the outside of the disc to the rear of the disc
Since the trapping pieces are extended, the baffle area can be increased by the amount of the continuous trapping pieces, and the separation and trapping effect of the oil mist can be improved with a simple configuration.Furthermore, the oil flowing along the front surface of the disc part Gas containing mist is outward from the outer peripheral edge of the disc
A circle from this outward protrusion through the outward protrusion
The oil mist is separated and captured by colliding with the continuous trapping piece that has continued to the rear position of the disc part beyond the outer end of the disc part, and the oil mist flowing along the front face of the disc part be inclusive gas can be prevented that a short circuit path to the rear without being caught oil mist beyond the outer peripheral edge of the disk portion, separates captured more effectively oil mist
It can be done.
【0043】また、請求項2記載の発明にあっては、モ
ータ軸を固定した円板部の前方に中央部が開口部となっ
たリング状板部を対向配置し、リング状板部と円板部と
の間に前面視でく字状に屈曲した羽根部を放射状に複数
枚架設すると共に羽根部の屈曲部よりも外側部分の前端
部と後端部とを回転方向に対してずらし、円板部の外周
端部を前方に向けて屈曲して捕捉用屈曲片を形成してあ
るので、気体よりも重いオイルミストの凝集物はファン
の遠心力によりファンの外周方向に飛ばされ、オイルミ
ストの凝集物が分離された気体は屈曲部よりも外側部分
にガイドされて斜め後方に送られて、ファンを通過する
際に気体中からオイルミストが分離捕捉されるものであ
るが、この際、円板部の前面に沿って流れるオイルミス
トを含んだ気体は捕捉用屈曲片に衝突してオイルミスト
が分離捕捉されると共に気体は向きを変えて羽根部側に
流れてバッフル効果により更にオイルミストが分離捕捉
されるものであって、円板部の前面に沿って流れるオイ
ルミストを含んだ気体が円板部の外周端を越えてオイル
ミストを捕捉されることなく後方にショートパスするの
が防止できて、より効果的にオイルミストを分離捕捉す
ることができるものである。According to the second aspect of the present invention, a ring-shaped plate portion having an opening at the center is disposed in front of the disk portion fixed to the motor shaft, and the ring-shaped plate portion and the circular plate portion are arranged to face each other. A plurality of blade portions that are bent in a dogleg shape in a front view are radially installed between the plate portion and the front end portion and the rear end portion of the outer portion of the blade portion that are outside the bent portion are displaced in the rotational direction, Since the outer peripheral edge of the disc is bent forward to form a bent bent piece for trapping, aggregates of oil mist heavier than gas are blown toward the outer circumference of the fan by the centrifugal force of the fan, and The gas from which the mist aggregates have been separated is guided to the outer side of the bent part and sent obliquely backward, and when passing through the fan, the oil mist is separated and captured from the gas. , The gas containing the oil mist flowing along the front surface of the disk is The oil mist collides against the trapping bent piece to be separated and captured, and the gas changes its direction and flows toward the vane side to further separate and capture the oil mist by the baffle effect. It is possible to prevent the gas containing the oil mist flowing along it from passing the outer peripheral edge of the disc part and short-passing backward without being trapped, making it possible to separate and capture the oil mist more effectively. it is those that can be.
【0044】[0044]
【図1】本発明のファン装置の斜視図である。FIG. 1 is a perspective view of a fan device according to the present invention.
【図2】同上の正面図である。FIG. 2 is a front view of the above.
【図3】同上の側面断面図である。FIG. 3 is a side sectional view of the above.
【図4】同上のファン装置を用いたオイルミスト除去装
置の側面断面図である。FIG. 4 is a side sectional view of an oil mist removing device using the above fan device.
【図5】同上の図4のX−X線断面図である。5 is a sectional view taken along line XX of FIG. 4 above.
【図6】本発明のファン装置の他の実施形態の斜視図で
ある。FIG. 6 is a perspective view of another embodiment of the fan device of the present invention.
【図7】同上の正面図である。FIG. 7 is a front view of the above.
【図8】同上の側面断面図である。FIG. 8 is a side sectional view of the above.
【図9】同上のファン装置を用いたオイルミスト除去装
置の側面断面図である。FIG. 9 is a side sectional view of an oil mist removing device using the above fan device.
【図10】同上の図9のX−X線断面図である。10 is a sectional view taken along line XX of FIG. 9 above.
【図11】従来例の斜視図である。FIG. 11 is a perspective view of a conventional example.
【図12】従来例の側面断面図である。FIG. 12 is a side sectional view of a conventional example.
1 モータ軸 2 円板部 3 開口部 4 リング状板部 5 羽根部 5a 屈曲部 5b 外側部分 5c 内側部分 5d 前端部 5e 後端部 1 motor shaft 2 disk part 3 openings 4 Ring-shaped plate 5 wings 5a bent part 5b outer part 5c inner part 5d front end 5e rear end
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭53−134208(JP,A) 特開 平2−70997(JP,A) 特公 平7−107397(JP,B2) (58)調査した分野(Int.Cl.7,DB名) F04D 29/30 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-53-134208 (JP, A) JP-A-2-70997 (JP, A) JP-B 7-107397 (JP, B2) (58) Field (Int.Cl. 7 , DB name) F04D 29/30
Claims (2)
部が開口部となったリング状板部を対向配置し、リング
状板部と円板部との間に前面視でく字状に屈曲した羽根
部を放射状に複数枚架設し、く字状に屈曲した羽根部の
屈曲部よりも外側部分の後部を円板部の外周端より外方
向に突出させて外方突出部とし、この外方突出部から円
板部の外端を越えて円板部の後方に向けて連出捕捉片を
連出し、この羽根部の屈曲部よりも外側部分の前端部と
後端部とを回転方向に対してずらして成ることを特徴と
するファン装置。1. A ring-shaped plate portion having an opening in the center is disposed in front of a disk portion fixed with a motor shaft, and a ring shape in a front view is provided between the ring-shaped plate portion and the disk portion. A plurality of radially curved blades are installed, and the rear part of the V-shaped curved blades is outward from the outer peripheral edge of the disc.
Project outward to form an outward protrusion, and from this outward protrusion a circle
Go over the outer edge of the plate and move the continuous capture piece toward the rear of the disk.
A fan device characterized in that the front end portion and the rear end portion of a portion outside the bent portion of the blade portion are consecutively displaced with respect to the rotation direction.
部が開口部となったリング状板部を対向配置し、リング
状板部と円板部との間に前面視でく字状に屈曲した羽根
部を放射状に複数枚架設すると共に羽根部の屈曲部より
も外側部分の前端部と後端部とを回転方向に対してずら
し、円板部の外周端部を前方に向けて屈曲して捕捉用屈
曲片を形成して成ることを特徴とするファン装置。2. A ring-shaped plate portion having an opening at the center is arranged in front of a disk portion fixed with a motor shaft, and a character V is seen from the front side between the ring-shaped plate portion and the disk portion. A plurality of radially curved blades are erected, and the front and rear ends of the outer side of the blades are offset with respect to the direction of rotation so that the outer peripheral edge of the disk faces forward. A fan device characterized by being bent to form a bent piece for capturing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2001013080A JP3445785B2 (en) | 2001-01-22 | 2001-01-22 | Fan device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001013080A JP3445785B2 (en) | 2001-01-22 | 2001-01-22 | Fan device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002221191A JP2002221191A (en) | 2002-08-09 |
JP3445785B2 true JP3445785B2 (en) | 2003-09-08 |
Family
ID=18879995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001013080A Expired - Lifetime JP3445785B2 (en) | 2001-01-22 | 2001-01-22 | Fan device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3445785B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4949537B2 (en) | 2009-06-28 | 2012-06-13 | バルミューダ株式会社 | Axial fan |
TW201430223A (en) * | 2013-01-22 | 2014-08-01 | Yao-qian Chen | Composite impeller and its blower |
-
2001
- 2001-01-22 JP JP2001013080A patent/JP3445785B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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JP2002221191A (en) | 2002-08-09 |
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