JPS5838302A - Centrifugal impeller device - Google Patents
Centrifugal impeller deviceInfo
- Publication number
- JPS5838302A JPS5838302A JP13581981A JP13581981A JPS5838302A JP S5838302 A JPS5838302 A JP S5838302A JP 13581981 A JP13581981 A JP 13581981A JP 13581981 A JP13581981 A JP 13581981A JP S5838302 A JPS5838302 A JP S5838302A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- centrifugal impeller
- rotating shaft
- fluid
- centrifugal
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 239000001307 helium Substances 0.000 abstract description 6
- 229910052734 helium Inorganic materials 0.000 abstract description 6
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D3/00—Machines or engines with axial-thrust balancing effected by working-fluid
- F01D3/02—Machines or engines with axial-thrust balancing effected by working-fluid characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、ヘリウム液化用のヘリウムコンプレッを等と
して使用される遠心式羽根車装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a centrifugal impeller device used as a helium compressor for helium liquefaction.
気体を圧縮する装置は種々開発されているが、！に高圧
縮比を得たい場合や装置のコンパクト化を図多たい場合
等においては、例えば、流体にエネルギを付与する第１
の遠心式羽根車と、流体からエネルギを受は取る第２の
遠心式羽根車とを共通の回転軸にそれぞれ装着しておき
、前記第ａの羽根車に高圧の駆動用気体を吹き付けて前
記回転軸を高速で回転させ前記第１の羽根車で所菫の気
体を圧縮するようにしたものが用いられる。とζろが、
−このような装着では、第１Ｏ羽根車における圧力条件
と第２の羽根車における圧力条件とを等しくすることが
難かしいため、前記回転軸に比較的大きなスフスト力が
作用するという不都合がある。特ｋ、ヘリウムの液化に
用いられるコンブレツナ醇においては、回転軸を極低温
の下で２０万〜３０万一程度の高速で回転させることが
要求されるため、該回転軸を支持する軸受としては、動
圧気体軸受坤漬鷹軸受等の特殊軸受を採用せざるを得な
、いが、かかる特殊軸受はころがり軸受等に比べて支持
力がはるかく弱いため、前記回転輪に大き＆スフスト力
が作用する場合には、該回転軸を無理なく支持すること
が難しいという問題がある。従来、このような問題に対
しては、前記回転軸を支持するスフスト軸受として、動
圧完体軸受や磁気軸受と玉軸受とを組み合せたものを採
用する醇の工夫がなされているが、いずれも、構造が複
雑となり大形化を招くとｂう不都合がある。Various devices have been developed to compress gas, but! For example, when you want to obtain a high compression ratio or make the device more compact, for example, the first
A centrifugal impeller and a second centrifugal impeller that receive and take energy from the fluid are respectively attached to a common rotating shaft, and a high-pressure driving gas is blown onto the a-th impeller. The rotary shaft is rotated at high speed and the first impeller compresses a certain amount of gas. and ζroga,
- With such mounting, it is difficult to equalize the pressure conditions in the first O impeller and the pressure conditions in the second impeller, so there is a disadvantage that a relatively large force is applied to the rotating shaft. In particular, in the combretuna liquor used to liquefy helium, the rotating shaft is required to rotate at a high speed of about 200,000 to 300,000 yen at extremely low temperatures, so bearings that support the rotating shaft are However, such special bearings have a much weaker supporting force than rolling bearings, so they are subject to large and fast forces on the rotating ring. When this occurs, there is a problem in that it is difficult to support the rotating shaft reasonably. Conventionally, attempts have been made to solve this problem by using dynamic pressure complete bearings or combinations of magnetic bearings and ball bearings as the fast bearings that support the rotating shaft. However, the structure is complicated and the size is increased, which is disadvantageous.
本発明は、このような事情に着目してなされたもので、
流体にエネルギを付与する第１の遠心式羽根車と、流体
からエネルギを受は取る第２の遠心式羽根車とをそれぞ
れハブの両面に羽根を設けてなる両吸込また祉両吐出形
のものｋするととによって、回転軸に作用するスラスト
力をなくすことが容易であル前述した不都合を確実に解
消することができるようｋした遠心式羽根車を提供する
ものである。The present invention was made with attention to such circumstances, and
A dual-suction, double-discharge type with a first centrifugal impeller that imparts energy to the fluid and a second centrifugal impeller that receives and takes energy from the fluid, each having blades on both sides of a hub. The object of the present invention is to provide a centrifugal impeller that can easily eliminate the thrust force acting on the rotating shaft and reliably eliminate the above-mentioned disadvantages.
以下、本発明の一実施・例を図面を参照して説明する。Hereinafter, one embodiment/example of the present invention will be described with reference to the drawings.
流体にエネルギを付与する第１の遠心式羽根車ｌと、流
体からエネルギを受は取る第２の遠心式羽根車２とを共
通の回転軸３に固着している。第１の羽根車ｌは、円板
状のハブ４の両面４ａ、ａｂＫ複数枚の羽根５−、６−
をそれヤれうず巻形に突設した両吸込形のもので、−面
４ａｌｌｃ設けた羽根５−と他面４ｂ＠に設けた羽根６
−とは鏡対称の形状をなしている。また、第２の羽根車
２は、円板状のハブ７の両面７ａ。A first centrifugal impeller 1 that imparts energy to the fluid and a second centrifugal impeller 2 that receives and takes energy from the fluid are fixed to a common rotating shaft 3. The first impeller l includes a plurality of blades 5-, 6- on both sides 4a of a disc-shaped hub 4, and abK.
It is a dual-suction type with a spiral-shaped protrusion, and has blades 5- provided on the - side 4allc and blades 6 provided on the other side 4b@.
- has a mirror symmetrical shape. Further, the second impeller 2 is provided on both surfaces 7a of a disc-shaped hub 7.
フｂに複数板の羽根８−・、９− をそれぞれうず巻
形に突設した両吐出形のもので、−面？ａ側に設けた羽
根８−と他面Ｔｏ＠ｌｃ−設けた羽根９−亡は鏡対称の
形状をなしている。そして、前記回転軸３をジャーナル
軸受１１．１１とスフスＦ軸受１２．１！！とｋよって
回転自在に支持している。前記各軸受１１，１２として
は、ティルティングパッド軸受またはフォイル軸受等Ｏ
動圧気体軸受や磁気軸受等が採用されている。It is a double-discharge type with a plurality of blades 8-, 9- protruding from the hood b in a spiral shape. The blade 8 provided on the a side and the blade 9 provided on the other side To@lc have a mirror symmetrical shape. Then, the rotating shaft 3 is connected to the journal bearing 11.11 and the SFUSU F bearing 12.1! ! Therefore, it is rotatably supported. Each of the bearings 11 and 12 may be a tilting pad bearing or a foil bearing.
Dynamic pressure gas bearings, magnetic bearings, etc. are used.
なお、１３は、前記′第、ｌの羽根車１を収容するケー
シングであシ、このケーシング１３の両側壁には前記羽
根車１０入口に連通する吸込口１３ａ、１３５Ｌが設け
であるとと４Ｋ、周壁には前記羽根車１の出口に連通す
る吐出口１３ｂが設けである。また、１４は、前記第２
の羽根車２を収容するケーシングであシ、このケーシン
グであり、このケーシング１４の周壁には前記羽根車２
０入口に連通する流入口１４５Ｌが設けであるとともに
両側壁には前記羽根車２の出口に連通する流出口ｘ４ｂ
、１４ｂが設けである。In addition, 13 is a casing that houses the 'th and l impeller 1, and both side walls of this casing 13 are provided with suction ports 13a and 135L that communicate with the inlet of the impeller 10. A discharge port 13b communicating with the outlet of the impeller 1 is provided on the peripheral wall. Further, 14 is the second
This is a casing that houses the impeller 2, and the impeller 2 is disposed on the peripheral wall of the casing 14.
An inlet 145L communicating with the 0 inlet is provided, and an outlet x4b communicating with the outlet of the impeller 2 is provided on both side walls.
, 14b are provided.
このような構成の屯のであれば、前記流入口１４ａを通
してケーシング１４内に導入した高圧チッソガス等の駆
動用気体を第２の羽根車２に吹付けることＫよって、該
羽根車２を回転軸３および第１４０羽根車１と共に高速
で回転させることができるので、この第１の羽根車１を
用いてヘリウムガス等の圧縮を行なうことができるわけ
であるが、本発明では、前記第１の羽根車１をハブ４の
両面４ａ、４ｂに羽根５−１６−を有した両吸込形のも
のにするとともに、第２の羽根車２をハブ７の両面７ａ
、７ｂに羽根８−．９− を有した両吐出形のものに
している。In the case of a tank having such a configuration, the driving gas such as high pressure nitrogen gas introduced into the casing 14 through the inlet port 14a is blown onto the second impeller 2, so that the impeller 2 is connected to the rotating shaft 3. Since the first impeller 1 and the 140th impeller 1 can be rotated at high speed, helium gas or the like can be compressed using the first impeller 1. The wheel 1 is of a double suction type with blades 5-16 on both sides 4a and 4b of the hub 4, and the second impeller 2 is provided with blades 5-16 on both sides 7a of the hub 7.
, 7b has a blade 8-. It is of a double discharge type with 9-.
そのため、前記羽根５− ．６−−−−を相互に等価な
性能を発揮し得るよう々ものにしさえすれば、第１の羽
根車１から回転軸３に作用するスラスト力を無くすこと
が可能であり、また、前１劇根８− ．９−を相互に等
価な性能を発揮し得るような４０ＫＬさえすれば、第２
の羽根車２から回転軸３に作用するスフスト力を無くす
ことが可能であゐ、そのため、この回転軸３に設けるス
ラス（軸受ｌ！！、１２としては、単なる位置決め用の
小形なものを用いればよく、構成が複雑で大形な軸受を
採用する必要が全くないという利点がある。しかも、こ
のようなものであれば、第１の羽根車１と第２の羽根車
２とをそれぞれ独自Ｋ［計しても回転１１ｍ３に作用す
るスフスト力を無ぐすことが可能であるため、例えば、
圧縮側の羽根車から回転軸に作用するスフスト力と膨張
側の羽根車から回転軸に作用するスフスト力とを釣シ合
わすことＫよって、該回転軸に作用する見かけ上のスフ
スト力を零に近づけるような場合に比べて設計の簡略化
を図ることができるという利点があゐ。Therefore, the blade 5-. It is possible to eliminate the thrust force acting on the rotating shaft 3 from the first impeller 1 as long as the impellers 6 and 6 are designed to exhibit equivalent performance. Gekikon 8-. As long as the 40KL that can exhibit the same performance as the 9- is the second one.
It is possible to eliminate the force acting on the rotating shaft 3 from the impeller 2 of This has the advantage that there is no need to use large bearings with a complicated structure.Furthermore, with such a structure, the first impeller 1 and the second impeller 2 can each be independently configured. K[Since it is possible to eliminate the force acting on the rotation 11 m3,
By balancing the force acting on the rotating shaft from the impeller on the compression side and the force acting on the rotating shaft from the impeller on the expansion side, the apparent force acting on the rotating shaft can be reduced to zero. The advantage is that the design can be simplified compared to the case where they can be brought closer together.
なお、前記実施例では、本発明をヘリウムコンプレツナ
に適用した場合について説明したが、本発明の適用対称
はかならずしくこのようなものに限られないのは勿論で
ある。In addition, although the said Example demonstrated the case where this invention was applied to a helium compressor, it goes without saying that the application object of this invention is not necessarily limited to such a thing.
図面は本発明の一実施例を示す断面図である。
１−−−−一一第１の羽根車、 ２−一一一・第２の羽
根車。
３、−−−一回転軸、 ４−−−−−ハブ、５・
６、−−−−一羽根％ ７−−−−−ハプ、８．
９−−−−一羽根。
代理人 弁理士 赤澤−博The drawing is a sectional view showing an embodiment of the present invention. 1----11 first impeller, 2-111 second impeller. 3, --- one rotation axis, 4 --- hub, 5.
6, ----- One feather% 7 ----- Hap, 8.
9---One feather. Agent Patent Attorney Hiroshi Akazawa
Claims (1)
からエネルギを受は取る第２の遠心式羽根車とを共通の
回転軸にそれぞれ装着した羽根車装置において、前記両
遠心式羽根車を、へプの両面に羽根を設けてなる両吸込
または両吐出形のもＯＫしたことを特徴とする遠心式羽
根車装置。In an impeller device in which a first centrifugal impeller that imparts energy to a fluid and a second centrifugal impeller that receives and takes energy from the fluid are mounted on a common rotating shaft, both centrifugal impellers A centrifugal impeller device characterized in that a double-suction or double-discharge type in which blades are provided on both sides of the impeller is also available.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13581981A JPS5838302A (en) | 1981-08-29 | 1981-08-29 | Centrifugal impeller device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13581981A JPS5838302A (en) | 1981-08-29 | 1981-08-29 | Centrifugal impeller device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5838302A true JPS5838302A (en) | 1983-03-05 |
Family
ID=15160540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13581981A Pending JPS5838302A (en) | 1981-08-29 | 1981-08-29 | Centrifugal impeller device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5838302A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6260995A (en) * | 1985-09-11 | 1987-03-17 | Hitachi Ltd | Turbine compressor |
| JPH0219613A (en) * | 1988-05-27 | 1990-01-23 | Mtu Motoren & Turbinen Union Muenchen Gmbh | Gas turbine device |
| US5541011A (en) * | 1991-10-28 | 1996-07-30 | Idemitsu Petrochemical Co., Ltd. | Oriented film easy to split |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1127684A (en) * | 1965-07-16 | 1968-09-18 | Gen Electric | Improvements in radial flow turbine |
| JPS5575502A (en) * | 1978-12-04 | 1980-06-06 | Hitachi Ltd | Radial turbine |
-
1981
- 1981-08-29 JP JP13581981A patent/JPS5838302A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1127684A (en) * | 1965-07-16 | 1968-09-18 | Gen Electric | Improvements in radial flow turbine |
| JPS5575502A (en) * | 1978-12-04 | 1980-06-06 | Hitachi Ltd | Radial turbine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6260995A (en) * | 1985-09-11 | 1987-03-17 | Hitachi Ltd | Turbine compressor |
| JPH0219613A (en) * | 1988-05-27 | 1990-01-23 | Mtu Motoren & Turbinen Union Muenchen Gmbh | Gas turbine device |
| US5541011A (en) * | 1991-10-28 | 1996-07-30 | Idemitsu Petrochemical Co., Ltd. | Oriented film easy to split |
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