CN102242730A - Centrifugal impeller and centrifugal gas compressor provided with same - Google Patents
Centrifugal impeller and centrifugal gas compressor provided with same Download PDFInfo
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- CN102242730A CN102242730A CN2011102274873A CN201110227487A CN102242730A CN 102242730 A CN102242730 A CN 102242730A CN 2011102274873 A CN2011102274873 A CN 2011102274873A CN 201110227487 A CN201110227487 A CN 201110227487A CN 102242730 A CN102242730 A CN 102242730A
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- impeller
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Abstract
The invention provides a centrifugal impeller, comprising an impeller disk (1), an impeller shaft (2) and an impeller blade (3). The impeller disk (1) is fixed on the impeller shaft (2). A first side edge (31) of the impeller blade (3) is fixed on the impeller disk (1). The centrifugal impeller further comprises an impeller wall (4). A second side edge (32) of the impeller blade (3) is fixed on the impeller wall (4). The second side edge (32) is opposite to the first side edge (31). Grid teeth (5) are arranged at installation contact positions of the centrifugal impeller and other components. According to the centrifugal impeller disclosed by the invention, because the impeller wall is arranged on the front end of the impeller blade, and the impeller wall and the impeller blade are fixedly connected, the stability of the impeller blade is greatly improved; the vibration is avoided when the impeller blade works; because the grid teeth are machined at joints of the impeller disk, the impeller wall, the impeller shaft and a receiver, the sealing property of the centrifugal impeller is greatly improved; and the gas leakage loss between the impeller blade and the receiver is effectively reduced.
Description
Technical field
The present invention relates to the turbine field, especially, relate to a kind of centrifugal impeller.In addition, the invention still further relates to a kind of centrifugal compressor that comprises above-mentioned centrifugal impeller.
Background technique
That centrifugal compressor has is simple and compact for structure, axial dimension is little, single stage supercharging is than the characteristics of high aspect, has in turbogenerator widely and uses.Centrifugal impeller is the important composition parts of centrifugal compressor, and it mainly is to utilize the turbine merit to improve the pressure of air.The working environment of centrifugal impeller is very abominable, and the working environment of High Temperature High Pressure and strong motion has greatly influenced the working life of centrifugal impeller.At present, centrifugal impeller is made up of the impeller plate and impeller blade, and impeller blade is fixed on the impeller plate, and integral body is fixed on the impeller shaft, and during work, impeller blade can produce sharp pounding, makes the blade premature damage, reduces the working life of impeller blade.
Summary of the invention
The object of the invention is to provide a kind of centrifugal impeller, shakes easily when solving the work of existing impeller blade, the technical problem of aspects such as generation gas leakage between impeller blade and the casing.
For achieving the above object, the invention provides a kind of centrifugal impeller, comprise: the impeller plate, impeller shaft and impeller blade, the impeller plate is fixed on the impeller shaft, the first side of impeller blade is fixed on the impeller plate, also comprise an impeller wall, the impeller wall is fixed in the second side relative with the first side of impeller blade.
Further, the impeller plate end face that deviates from the impeller wall is provided with some comb teeth.
Further, the some comb teeth on this impeller plate end face are the concentric raised line annulus of vertical impeller plate end face, and the center of circle of these some concentric raised line annulus is positioned on the axis of impeller shaft.
Further, the impeller plate comprises first parallel-segment and with impeller shaft vertical first vertical section coaxial with impeller shaft, and first parallel-segment is that arc-shaped transition is connected with first vertical section.
Further, the end face at the first vertical section adjacent impeller axle place is extruded with one bulge loop is installed, and the external annulus that bulge loop is installed is provided with some comb teeth.
Further, this comb tooth of installing on the bulge loop is vertical some double wedge rings that the bulge loop external annulus is installed, and the center of circle of these some double wedge rings is dropped on the axis that bulge loop is installed.
Further, the impeller wall comprises second parallel-segment and with impeller shaft vertical second vertical section coaxial with impeller shaft, and second parallel-segment is that arc-shaped transition is connected with second vertical section.
Further, the arc joint between second parallel-segment and second vertical section is provided with some comb teeth.
Further, the comb tooth of this arc joint is the raised line annulus, and the center of circle of these some raised line annulus is dropped on the axis of impeller shaft.
Further, the position near first parallel-segment is provided with some comb teeth on impeller shaft.
Further, this comb tooth near first parallel-segment is the raised line annulus that is arranged side by side, and the center of circle of these some raised line annulus is dropped on the axis of impeller shaft, the end face of some comb teeth.
Further, the integrated member that is formed in one of the impeller plate, impeller shaft and impeller blade.
Further, the integrated member that is formed in one of impeller wall and impeller blade.
The present invention also provides a kind of centrifugal compressor, and this centrifugal compressor is equipped with above-mentioned centrifugal impeller.
The present invention has following beneficial effect: the present invention is owing to be provided with the impeller wall at the front end of impeller blade, and the impeller wall fixedlys connected with impeller blade, improved the steadiness of impeller blade greatly, shakes when having avoided impeller blade to work; Owing to be processed with the comb tooth, improved the sealability of centrifugal impeller greatly again, effectively reduced the air loss between impeller blade and the casing in the joint of the impeller plate, impeller wall, impeller shaft and casing.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.With reference to figure, the present invention is further detailed explanation below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is that the centrifugal impeller of the preferred embodiment of the present invention dissects structural representation; And
Fig. 2 is the plan view schematic representation of the centrifugal impeller of the preferred embodiment of the present invention in impeller plate direction.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1, a kind of centrifugal impeller comprises the impeller plate 1, impeller shaft 2, impeller blade 3, impeller wall 4 and comb tooth 5.
The integrated member that the impeller plate 1 and impeller shaft 2 are formed in one, impeller blade 3 also is integrated integrated member with the impeller plate 1.Like this, improved the steadiness of centrifugal impeller greatly, avoided the impeller plate 1 relative impeller shaft 2 axial motions in the working procedure, prevented that also impeller blade 3 from coming off from the impeller plate 1.As other embodiment, the fixedly connected of the impeller plate 1 and impeller shaft 2 can be for clamping, interlocking, welding or locking be connected, and impeller blade 3 and the impeller plate 1 fixedly connected can be connected, weld or lock connection for build-in.
In conjunction with referring to Fig. 2, the impeller plate 1 comprises and coaxial first parallel-segment 11 of impeller shaft 2 and first vertical section 12 vertical with impeller shaft 2.First parallel-segment 11 and first vertical section 12 are for arc transiting surface is connected, and the thickness of first parallel-segment 11 is greater than the thickness of first vertical section 12.Use arc transiting surface to connect first parallel-segment 11 and first vertical section 12, make that fluid flowing in centrifugal impeller is more smooth and easy, can not form the fluid dead angle; On the other hand, the thickness of first parallel-segment 11 makes the axial moment of the impeller plate 1 more approach the axle center, thereby makes that the rotation of centrifugal impeller is more steady greater than the thickness of first vertical section 12, significantly reduced the vibrations of centrifugal impeller.End face at first vertical section, 12 adjacent impeller axles, 2 places of the impeller plate 1 is extruded with one bulge loop 6 is installed, the external annulus that bulge loop 6 is installed is provided with some comb teeth 54, this comb tooth 54 is vertical some double wedge rings that bulge loop 6 external annulus are installed, the center of circle of these some double wedge rings is dropped on the axis that bulge loop 6 is installed, the end face of those comb teeth 54.The end face that deviates from impeller wall 4 at the impeller plate 1 is provided with some comb teeth 53, this comb tooth 53 is arranged on first vertical section, the 12 contiguous positions that bulge loop 6 places are installed of the impeller plate 1, this comb tooth 53 drops on the axis of impeller shaft 2 for the center of circle, the raised line annulus of radius difference, the vertical impeller plate 1 end face, the end face of those comb teeth 5.As other embodiment, this comb tooth 53 and comb tooth 54 can have other processing and extension mode, as long as can play seal action.
The front end of impeller blade 3 is provided with an impeller wall 4, and impeller wall 4 is fixedlyed connected with impeller blade 3.This fixedly connected mode can connect for build-in, solid welding connects, locking connection or one-body molded.The shape of impeller wall 4 is identical or roughly the same with the shape of the impeller plate 1.Impeller blade 3 is folded between the impeller wall 4 and the impeller plate 1.Impeller wall 4 comprises and coaxial second parallel-segment 41 of impeller shaft 2 and second vertical section 42 vertical with impeller shaft 2.Second parallel-segment 41 is connected for arc transiting surface with second vertical section 42.Impeller wall 4 thickness everywhere equates or about equally.Front end at impeller blade 3 is provided with an impeller wall 4, each impeller blade 3 front end relative vibration, deflection in the working procedure have been avoided, improved the integrity of centrifugal impeller, the vibrations in impeller blade 3 working procedure have greatly been reduced, improved the life-span of impeller blade, made that simultaneously compressed air stream is stable more, no disturbance.Arc joint between second parallel-segment 41 on the impeller wall 4 and second vertical section 42 is provided with some comb teeth 51, this comb tooth 51 is the raised line annulus, the center of circle of some raised line annulus is dropped on the axis of impeller shaft 2, per two concentric raised line annulus constitute one group of comb tooth 51, and the end face of each group comb tooth 51.As other embodiment, this comb tooth 51 can have other processing and extension mode, as long as can play seal action.
The circumference at the position of first parallel-segment 11 of the close impeller plate 1 is provided with some comb teeth 52 on the impeller shaft 2, the raised line annulus of this comb tooth 52 for being arranged side by side, and the center of circle of these some raised line annulus is dropped on the axis of impeller shaft 2, the end face of those comb teeth 52.As other embodiment, this comb tooth 52 can have other processing and extension mode, as long as can play seal action.The position of the above-mentioned processing comb of centrifugal impeller tooth 5 all is positions that this centrifugal impeller contacts with casing, like this, makes centrifugal impeller tightr with contacting of casing, and its sealability improves greatly, has reduced the gas leakage loss between centrifugal impeller, impeller blade and the casing.
Impeller blade 3 is connected with the inclination that is connected to of the impeller plate 1 and impeller wall 4, and promptly impeller blade 3 is set to and centrifugal impeller sense of rotation same tilt angle, more helps flowing of pressurized gas.This impeller blade 3 is processed into groove at length direction.
The present invention also provides a kind of centrifugal compressor, and above-mentioned centrifugal impeller is installed on this centrifugal compressor.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. centrifugal impeller,
Comprise: the impeller plate (1), impeller shaft (2) and impeller blade (3), the described impeller plate (1) are fixed on the described impeller shaft (2), and the first side (31) of described impeller blade (3) is fixed on the described impeller plate (1),
It is characterized in that, also comprise an impeller wall (4), described impeller wall (4) is fixed in the second side (32) relative with described first side (31) of described impeller blade (3).
2. centrifugal impeller according to claim 1 is characterized in that,
The end face that the described impeller plate (1) deviates from described impeller wall (4) is provided with some comb teeth (53);
Perhaps, some described comb teeth (53) are the concentric raised line annulus of the vertical described impeller plate (1) end face, and the center of circle of these some concentric raised line annulus is positioned on the axis of described impeller shaft (2).
3. centrifugal impeller according to claim 2 is characterized in that,
The described impeller plate (1) comprises first parallel-segment (11) and with described impeller shaft (2) vertical first vertical section (12) coaxial with described impeller shaft (2);
Described first parallel-segment (11) is connected for arc-shaped transition with described first vertical section (12).
4. centrifugal impeller according to claim 3 is characterized in that,
The end face that the contiguous described impeller shaft of described first vertical section (12) (2) is located is extruded with one bulge loop (6) is installed, and the external annulus of described installation bulge loop (6) is provided with some comb teeth (54);
Perhaps, described comb tooth (54) is some double wedge rings of vertical described installation bulge loop (6) external annulus, and the center of circle of these some double wedge rings is dropped on the axis of described installation bulge loop (6).
5. centrifugal impeller according to claim 1 is characterized in that,
Described impeller wall (4) comprises second parallel-segment (41) and with described impeller shaft (2) vertical second vertical section (42) coaxial with described impeller shaft (2);
Described second parallel-segment (41) is connected for arc-shaped transition with described second vertical section (42).
6. centrifugal impeller according to claim 5 is characterized in that,
Arc joint between described second parallel-segment (41) and described second vertical section (42) is provided with some comb teeth (51);
Perhaps, described comb tooth (51) is the raised line annulus, and the center of circle of these some raised line annulus is dropped on the axis of described impeller shaft (2).
7. centrifugal impeller according to claim 1 is characterized in that,
The position of going up near first parallel-segment (11) at described impeller shaft (2) is provided with some comb teeth (52);
Perhaps, the raised line annulus of described comb tooth (52) for being arranged side by side, the center of circle of these some raised line annulus is dropped on the axis of described impeller shaft (2), the end face of some described comb teeth (5).
8. according to each described centrifugal impeller in the claim 1 to 7, it is characterized in that,
The integrated member that the described impeller plate (1), described impeller shaft (2) and described impeller blade (3) are formed in one.
9. according to each described centrifugal impeller in the claim 1 to 7, it is characterized in that,
The integrated member that described impeller wall (4) and described impeller blade (3) are formed in one.
10. a centrifugal compressor is characterized in that,
Be equipped with as each described centrifugal impeller in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102274873A CN102242730A (en) | 2011-08-09 | 2011-08-09 | Centrifugal impeller and centrifugal gas compressor provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102274873A CN102242730A (en) | 2011-08-09 | 2011-08-09 | Centrifugal impeller and centrifugal gas compressor provided with same |
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| Publication Number | Publication Date |
|---|---|
| CN102242730A true CN102242730A (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102274873A Pending CN102242730A (en) | 2011-08-09 | 2011-08-09 | Centrifugal impeller and centrifugal gas compressor provided with same |
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| CN (1) | CN102242730A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206407A (en) * | 2012-10-24 | 2013-07-17 | 哈尔滨东安发动机（集团）有限公司 | Impeller of gas compressor |
| CN108937716A (en) * | 2018-07-24 | 2018-12-07 | 追觅科技（天津）有限公司 | Impeller, air intake device and dust catcher |
| CN114658686A (en) * | 2022-05-05 | 2022-06-24 | 山东省章丘鼓风机股份有限公司 | Impeller shaft disc of small-sized ventilator and machining method thereof |
| US11560900B2 (en) | 2020-06-09 | 2023-01-24 | Emerson Climate Technologies, Inc. | Compressor driveshaft assembly and compressor including same |
Citations (4)
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| JPH02245496A (en) * | 1989-03-17 | 1990-10-01 | Hitachi Ltd | Axial clearance adjusting device of turbo impeller |
| CN2232498Y (en) * | 1994-12-30 | 1996-08-07 | 冯卫国 | Efficiency energy-saving binary pump centrifugal impeller |
| CN1605730A (en) * | 2004-11-15 | 2005-04-13 | 西安交通大学 | High temperature gas seal structure with heat insulating and cooling action |
| CN202251078U (en) * | 2011-08-09 | 2012-05-30 | 中国南方航空工业(集团)有限公司 | Centrifugal impeller and centrifugal compressor with same |
-
2011
- 2011-08-09 CN CN2011102274873A patent/CN102242730A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02245496A (en) * | 1989-03-17 | 1990-10-01 | Hitachi Ltd | Axial clearance adjusting device of turbo impeller |
| CN2232498Y (en) * | 1994-12-30 | 1996-08-07 | 冯卫国 | Efficiency energy-saving binary pump centrifugal impeller |
| CN1605730A (en) * | 2004-11-15 | 2005-04-13 | 西安交通大学 | High temperature gas seal structure with heat insulating and cooling action |
| CN202251078U (en) * | 2011-08-09 | 2012-05-30 | 中国南方航空工业(集团)有限公司 | Centrifugal impeller and centrifugal compressor with same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206407A (en) * | 2012-10-24 | 2013-07-17 | 哈尔滨东安发动机（集团）有限公司 | Impeller of gas compressor |
| CN108937716A (en) * | 2018-07-24 | 2018-12-07 | 追觅科技（天津）有限公司 | Impeller, air intake device and dust catcher |
| CN108937716B (en) * | 2018-07-24 | 2024-04-19 | 追觅科技（天津）有限公司 | Impeller, air suction device and dust collector |
| US11560900B2 (en) | 2020-06-09 | 2023-01-24 | Emerson Climate Technologies, Inc. | Compressor driveshaft assembly and compressor including same |
| CN114658686A (en) * | 2022-05-05 | 2022-06-24 | 山东省章丘鼓风机股份有限公司 | Impeller shaft disc of small-sized ventilator and machining method thereof |
| CN114658686B (en) * | 2022-05-05 | 2024-02-20 | 山东省章丘鼓风机股份有限公司 | Impeller shaft disc of small ventilator and processing method thereof |
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Application publication date: 20111116 |