JPH03206400A - Device for removing matter sticking to blade surface of turbomachinery - Google Patents
Device for removing matter sticking to blade surface of turbomachineryInfo
- Publication number
- JPH03206400A JPH03206400A JP52790A JP52790A JPH03206400A JP H03206400 A JPH03206400 A JP H03206400A JP 52790 A JP52790 A JP 52790A JP 52790 A JP52790 A JP 52790A JP H03206400 A JPH03206400 A JP H03206400A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- sticking
- leading edge
- matter
- rotor
- 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
- 239000002657 fibrous material Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 238000000151 deposition Methods 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はターボ機械における性能及び信頼性の改善に係
り、特に，翼面の付着物の除去装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improving the performance and reliability of turbomachinery, and more particularly to a device for removing deposits on a wing surface.
大気吸込みの圧縮機，送風機，ガスタービンなどのター
ボ機械では、空気中の塵埃などの固形物が翼面上に付着
しやすい．空気中の塵埃は、まず、翼の前縁部より付着
し始め、この状態で運転を続けると付着物は翼の全面に
増大していく。付着した固形物は翼表面に不均一に分布
し、結果的には翼の面あらさを増すことになる。このよ
うな状態で使用していると，ターボ機械の大幅な性能低
下を招くだけでなく，作動点が設計点からずれることに
より、翼の失速現象を生じ、翼の共振による疲労破損な
どの現象を起こすこともある。したがって、連続運転中
のターボ機械の性能低下、信頼性低下を防ぐためには翼
面上の付着′物を除去する必要がある。従来の付着物除
去装置は特開昭５３−１７８１２号公報に記載されてい
る。この付着物除去装置は静翼の周囲を付着物除去用部
材で間隙をもって囲み、静翼、または、付着物除去用部
材を運動機構で動かすようにして付着物を除去している
。In air-breathing turbomachinery such as compressors, blowers, and gas turbines, solid matter such as dust in the air tends to adhere to the blade surfaces. Dust in the air first begins to adhere to the leading edge of the blade, and if operation continues in this state, the amount of dust will increase over the entire surface of the blade. The attached solids are distributed non-uniformly on the blade surface, resulting in an increase in the surface roughness of the blade. If used under such conditions, not only will the performance of the turbomachine be significantly degraded, but the operating point will deviate from the design point, causing the blade to stall, resulting in fatigue failure and other phenomena due to blade resonance. may also occur. Therefore, in order to prevent the performance and reliability of turbomachines from decreasing during continuous operation, it is necessary to remove the deposits on the blade surfaces. A conventional deposit removing device is described in Japanese Patent Application Laid-Open No. 17812/1983. This deposit removing device surrounds a stator vane with a deposit removing member with a gap, and removes deposits by moving the stator vane or the deposit removing member using a movement mechanism.
また、従来の付着物除去装置には特開昭５５−１１４８
９９号公報に記載された例もある。この付着物除去装置
は翼の表面に多数の小孔を設け、回転軸内を通して空気
、又は、水を小孔より噴出させることにより、翼表面に
付着するのを防いでいる。In addition, the conventional deposit removal device is
There is also an example described in Publication No. 99. This deposit removing device has a large number of small holes on the surface of the blade, and blows air or water through the small holes through the rotating shaft, thereby preventing the deposit from adhering to the blade surface.
第一の従来例ではねじりのない静翼の付着物除去を行う
もので、ねじりのある静翼に対じでや堆積物による性能
低下が大きく影響する動翼に対しては適用できない問題
がある。The first conventional method removes deposits from untwisted stator blades, which has the problem of not being applicable to torsioned stator blades or rotor blades whose performance is significantly affected by the deterioration of performance due to deposits. .
第二の従来例では動翼に対して適用可能であるが、翼表
面に多数の小孔を設けるため、製作コストが増し，また
、翼の強度が低下するという欠点があった。また、小孔
のない領域での付着物の除去に問題があった。The second conventional example can be applied to rotor blades, but has the drawbacks of increasing manufacturing cost and reducing blade strength because a large number of small holes are provided on the blade surface. Additionally, there was a problem in removing deposits in areas without small holes.
本発明の目的は、翼面上への付着物が堆積していく主要
因となる動翼前縁部の付着物を簡便、かつ、確実に除去
できる装置を提供することにある。An object of the present invention is to provide a device that can easily and reliably remove deposits from the leading edge of a rotor blade, which is the main cause of deposits accumulating on the blade surface.
本発明はターボ機械の運転中にケーシング外部より付着
物除去手段を、動翼上流位置に挿入するとともに、この
付着物除去手段を回転する動翼の前縁部と互いに接触さ
せるようにし、所期の目的を達成するようにしたもので
ある。According to the present invention, a deposit removing means is inserted from outside the casing into a position upstream of the rotor blade during operation of a turbomachine, and the deposit removing means is brought into contact with the leading edge of the rotating rotor blade, thereby achieving the desired effect. It was designed to achieve the purpose of
このように形成すると動翼が付着物除去手段を通過する
ごとに前縁部と接触するため、翼面上の付着物或長の原
因となる動翼前縁部の付着物を確実に除去することがで
きる。When formed in this way, the rotor blade comes into contact with the leading edge every time it passes through the deposit removal means, so deposits on the leading edge of the rotor blade that cause deposits or length on the blade surface are reliably removed. be able to.
以下、本発明の一実施例を第１図と第２図を用いて説明
する。第１図は本発明を実施した多段軸流圧縮機の断面
図で、第２図は第１図のＡ視図を示す。多段軸流圧縮機
は、第工図に示すように、ケーシング１により構威され
る環状流路２内のケーシング内面に取付けられた静翼３
と動翼４を配置して回転するロータ５を設けて構威され
、ロータ５は別置のモータやタービンなどにより駆動さ
れる。６は、第２図に示した動翼前縁部７と接触するよ
うに位置決めされた支持部材８と接合されたブラシ状の
付着物除去部材である。この付着物除去部材６はアルミ
ナ繊維等の耐摩耗性の高い繊維材料であれば良い。支持
部材８はケーシング１に設けられた貫通孔９よりケーシ
ングエの外に貫通しており、ケーシング１外に設置され
たピストン１０，シリンダ１１からなる押戻し運動機構
と連結されている。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a sectional view of a multi-stage axial flow compressor embodying the present invention, and FIG. 2 is a view from A in FIG. 1. As shown in the construction drawing, the multi-stage axial flow compressor has stationary blades 3 attached to the inner surface of the casing in an annular flow path 2 defined by the casing 1.
A rotating rotor 5 is provided with moving blades 4 arranged thereon, and the rotor 5 is driven by a separately installed motor, turbine, or the like. Reference numeral 6 designates a brush-like deposit removing member joined to a support member 8 positioned so as to be in contact with the leading edge portion 7 of the rotor blade shown in FIG. The deposit removing member 6 may be made of a fiber material with high wear resistance such as alumina fiber. The support member 8 passes through a through hole 9 provided in the casing 1 to the outside of the casing 1, and is connected to a push-back movement mechanism consisting of a piston 10 and a cylinder 11 installed outside the casing 1.
次にこのように形或された翼面上付着物除去装置の動作
を説明する。まず、多段軸流圧縮機が通常に運転されて
いる場合には、ピストン１０をシリンダ上部１１ａへ油
圧源等により移動させ、付着物除去部材６と支持部材８
は環状流路２外へ保持しておく。一方、翼面付着物の除
去が必要となった場合には、ピストン１０をシリンダ下
部１ｌｂへと押し戻し、付着物除去部材６を動翼前縁部
７と接触させる。Next, the operation of the device for removing deposits on the wing surface shaped as described above will be explained. First, when the multistage axial flow compressor is normally operated, the piston 10 is moved to the cylinder upper part 11a by a hydraulic power source or the like, and the deposit removing member 6 and the supporting member 8 are moved.
is kept outside the annular flow path 2. On the other hand, when it becomes necessary to remove the deposits on the blade surface, the piston 10 is pushed back to the lower part of the cylinder 1lb, and the deposit removing member 6 is brought into contact with the leading edge portion 7 of the rotor blade.
そして、本発明により第３図に示すように、動翼４がブ
ラシ状の付着物除去部材６を通過するごとに，翼前縁部
８近傍の付着物１２が飛散させられるため、確実に，か
つ、効果的に翼面付着物を除去出来る。本発明による翼
面上の付着物除去を定期的に実施すれば圧縮機性能を設
計状態に維持することが出来、ひいては、駆動動力の浪
費も防ぐことができるため省エネルギにも寄与出来る。According to the present invention, as shown in FIG. 3, each time the rotor blade 4 passes the brush-like deposit removing member 6, the deposits 12 near the blade leading edge 8 are scattered. Moreover, it is possible to effectively remove the deposits on the wing surface. By periodically removing deposits on the blade surface according to the present invention, the performance of the compressor can be maintained at the designed state, and furthermore, the wastage of driving power can be prevented, which can also contribute to energy saving.
このように、本発明は従来のものに比べ翼形状の制約を
受けることなく、また、翼に対して複雑な加工を施すこ
となく、簡便で、かつ、確実に動翼前縁部の付着物を除
去することが可能となる。As described above, the present invention is able to easily and reliably eliminate deposits on the leading edge of the rotor blade without being subject to restrictions on the shape of the blade or performing complicated processing on the blade. It becomes possible to remove.
翼面上の付着物の堆積は翼前縁部から或長していくため
、この領域での付着物の除去は翼全面への付着物除去と
同等の効果をもっている。Since the deposits on the blade surface extend to a certain extent from the leading edge of the blade, removing the deposits in this region has the same effect as removing deposits from the entire surface of the blade.
なお、付着物の除去を施さない時、ケーシング貫通孔９
からの圧縮空気の漏洩が問題となる場合は閉止プラグ等
で閉止すれば良い。In addition, when the deposits are not removed, the casing through hole 9
If leakage of compressed air from the pipe is a problem, you can close it with a closure plug, etc.
また、先の実施例では環状流量のほぼ全域に付着物除去
部材６を設けた例を説明したが、この付着物除去部材６
を支持部材８の先端部のみ設け、ピストン１０の押し戻
し運動を繰り返すことによっても前述と同様の効果が得
られる。Further, in the previous embodiment, an example was explained in which the deposit removing member 6 was provided in almost the entire area of the annular flow rate, but this deposit removing member 6
The same effect as described above can also be obtained by providing only the tip of the support member 8 and repeating the pushing back movement of the piston 10.
また、本発明を多段軸流圧縮機に適用する場合、複数の
段に付着物除去装置を設ければ、性能改善はより効果的
に発揮出来る。Further, when the present invention is applied to a multi-stage axial flow compressor, performance improvement can be more effectively achieved by providing deposit removal devices in a plurality of stages.
本発明は、ターボ機械の運転中にケーシング外部より翼
面上付着物除去手段を、動翼上流位置に挿入するととも
に、この付着物除去手段を回転する動翼の前縁部と互い
に接触させるように形成したので、翼面上付着物が確実
に、かつ、効果的に除去できる。このように動翼前縁部
での堆積付着物が除去されると、翼全面への付着物の堆
積も回避されるため、長時間連続運転中のターボ機械で
も、その性能を設計状態に保つことができ，また、失速
による翼の疲労破損等を確実に回避できる。The present invention includes inserting a means for removing deposits on a blade surface from outside a casing into a position upstream of a rotor blade during operation of a turbomachine, and bringing the deposit removing means into contact with the leading edge of a rotating rotor blade. Since it is formed on the blade surface, deposits on the blade surface can be removed reliably and effectively. When the deposits on the leading edge of the rotor blade are removed in this way, deposits on the entire surface of the blade are also avoided, thus maintaining the performance of the turbomachinery at its designed state even during continuous operation for long periods of time. In addition, fatigue damage to the blades due to stalling can be reliably avoided.
第１図は本発明の一実施例の軸流圧縮機の横断面図、第
２図は第１図のＡ視図、第３図は本発明の動作説明図で
ある。
１・・・ケーシング、４・・・動翼、６・・・付着物除
去部材、７・・・動翼前縁部、８・・・支持部材．１０
・・・ピストン、１１・・・シリンダ、１２・・・翼面
上付着物。
第
１
図
ｆｌａ
第
２
図
第
３
図
（≧＼FIG. 1 is a cross-sectional view of an axial flow compressor according to an embodiment of the present invention, FIG. 2 is a view from A in FIG. 1, and FIG. 3 is an explanatory diagram of the operation of the present invention. DESCRIPTION OF SYMBOLS 1... Casing, 4... Moving blade, 6... Deposit removal member, 7... Moving blade leading edge part, 8... Supporting member. 10
...Piston, 11...Cylinder, 12...Deposits on the wing surface. Figure 1 fla Figure 2 Figure 3 (≧\
Claims (1)
れた静翼と、動翼を配置して回転するロータを備えたタ
ーボ機械において、 支持部材と接合された翼面上付着物除去部材を、前記動
翼の前縁部と接触するように位置決めし、前記支持部材
を前記ケーシング外に設置された押戻し運動機構と連結
させたことを特徴とするターボ機械の翼面上付着物除去
装置。 ２、前記翼面上付着物除去部材が、耐摩耗性の高い繊維
材をブラシ状に構成した請求項１に記載のターボ機械の
翼面上付着物除去装置。 ３、前記繊維材はアルミナ繊維である請求項２に記載の
ターボ機械の翼面上付着物除去装置。 ４、前記押戻し運動機構はシリンダとピストンからなる
請求項１に記載のターボ機械の翼面上付着物除去装置。[Claims] 1. In a turbomachine equipped with stator blades attached to the inner surface of a casing constituting an annular flow path and a rotating rotor with rotor blades arranged thereon, on the blade surface joined to the support member. A blade surface of a turbomachine, characterized in that a deposit removing member is positioned so as to be in contact with a leading edge of the rotor blade, and the support member is connected to a push-back movement mechanism installed outside the casing. Top deposit removal device. 2. The device for removing deposits on a blade surface of a turbomachine according to claim 1, wherein the member for removing deposits on a blade surface is made of a highly wear-resistant fiber material in the shape of a brush. 3. The apparatus for removing deposits on a blade surface of a turbomachine according to claim 2, wherein the fiber material is an alumina fiber. 4. The device for removing deposits on a blade surface of a turbomachine according to claim 1, wherein the push-back movement mechanism comprises a cylinder and a piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52790A JPH03206400A (en) | 1990-01-08 | 1990-01-08 | Device for removing matter sticking to blade surface of turbomachinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52790A JPH03206400A (en) | 1990-01-08 | 1990-01-08 | Device for removing matter sticking to blade surface of turbomachinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03206400A true JPH03206400A (en) | 1991-09-09 |
Family
ID=11476245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52790A Pending JPH03206400A (en) | 1990-01-08 | 1990-01-08 | Device for removing matter sticking to blade surface of turbomachinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03206400A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007231944A (en) * | 2006-02-27 | 2007-09-13 | Nuovo Pignone Spa | Rotor blade for second phase of compressor |
| JP2007231946A (en) * | 2006-02-27 | 2007-09-13 | Nuovo Pignone Spa | Rotor blade for ninth stage of compressor, rotor, and compressor |
| US20120139251A1 (en) * | 2010-12-06 | 2012-06-07 | Chin-Li Pai | High efficiency waterwheel apparatus having track-type blades and a track-type blade set thereof |
| JP2015105619A (en) * | 2013-11-29 | 2015-06-08 | 三菱重工業株式会社 | Deposit removal device and axial flow rotary machine |
| JP6481061B1 (en) * | 2018-02-19 | 2019-03-13 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner |
| CN110878770A (en) * | 2019-12-10 | 2020-03-13 | 萍乡市南风风机厂(普通合伙) | Axial flow fan |
-
1990
- 1990-01-08 JP JP52790A patent/JPH03206400A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007231944A (en) * | 2006-02-27 | 2007-09-13 | Nuovo Pignone Spa | Rotor blade for second phase of compressor |
| JP2007231946A (en) * | 2006-02-27 | 2007-09-13 | Nuovo Pignone Spa | Rotor blade for ninth stage of compressor, rotor, and compressor |
| KR101433373B1 (en) * | 2006-02-27 | 2014-08-26 | 누보 피그노네 에스피에이 | Rotor blade for a ninth phase of a compressor |
| US20120139251A1 (en) * | 2010-12-06 | 2012-06-07 | Chin-Li Pai | High efficiency waterwheel apparatus having track-type blades and a track-type blade set thereof |
| US8994204B2 (en) * | 2010-12-06 | 2015-03-31 | Chen-Yi Pai | High efficiency waterwheel apparatus having track-type blades and a track-type blade set thereof |
| JP2015105619A (en) * | 2013-11-29 | 2015-06-08 | 三菱重工業株式会社 | Deposit removal device and axial flow rotary machine |
| JP6481061B1 (en) * | 2018-02-19 | 2019-03-13 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner |
| WO2019159387A1 (en) * | 2018-02-19 | 2019-08-22 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner |
| CN110402352A (en) * | 2018-02-19 | 2019-11-01 | 日立江森自控空调有限公司 | Air conditioner |
| CN110402352B (en) * | 2018-02-19 | 2021-05-04 | 日立江森自控空调有限公司 | Air conditioner |
| EP3757466A4 (en) * | 2018-02-19 | 2021-12-15 | Hitachi-Johnson Controls Air Conditioning, Inc. | Air conditioner |
| CN110878770A (en) * | 2019-12-10 | 2020-03-13 | 萍乡市南风风机厂(普通合伙) | Axial flow fan |
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