CN202065241U - First-stage blade of air compressor with hub diameter of phi 762 - Google Patents
First-stage blade of air compressor with hub diameter of phi 762 Download PDFInfo
- Publication number
- CN202065241U CN202065241U CN2011201721339U CN201120172133U CN202065241U CN 202065241 U CN202065241 U CN 202065241U CN 2011201721339 U CN2011201721339 U CN 2011201721339U CN 201120172133 U CN201120172133 U CN 201120172133U CN 202065241 U CN202065241 U CN 202065241U
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Abstract
The utility model discloses a first-stage blade of an air compressor with a hub diameter of phi 762, which relates to a blade. The problem that a traditional first-stage blade of the air compressor with the hub diameter of phi 762 is unsmooth in a profile face, unstable in quality and short in service life is solved. The working part and the root of the blade are integrally formed from top to bottom; a moulded line of the blade working part is a variable-cross section twisted blade; and the cross section is gradually reduced from the root part to the top part. The cross section of the working part of the blade from the root part to the top part has the following geometric data that: the height of the cross sections from the cross section A-A to the cross section K-K is 0 to 164.12mm; the axial width is 79.6259 to 51.331mm; the chord length is 83.58 to 83.496mm; the air inlet angle is 46.967 to 31.093 degrees; the mounting angle is 71.677 to 37.46 degrees; and the maximal thickness of the moulded line is 9.964 to 3.916mm. The first-stage blade of the air compressor with the hub diameter of phi 762 is applied to an air compressor of which the hub diameter phi is 762.
Description
Technical field
The utility model relates to a kind of compressor blade.
Background technique
Because hub diameter is that the rotating speed of gas compressor of Φ 762 is very high, so require blade better, aspect Security, require more strictly at aspect of performances such as strength vibrations, the each side of chopped-off head blade is required also further strictness.Existing hub diameter is that the gas compressor chopped-off head blade profile of Φ 762 designs not fairing, and efficient is low, the leaf quality instability, and efficient is low, and working life is short, has had a strong impact on the safe operation of gas compressor.
The model utility content
The purpose of this utility model is for the solution hub diameter is the not fairing of gas compressor chopped-off head blade profile of Φ 762, the quality instability, and working life is short, influences the problem of gas compressor safe operation, and it is the gas compressor chopped-off head blade of Φ 762 that a kind of hub diameter is provided.
The utility model is made up of blade working part and blade root, blade working part and blade root are made one from top to bottom, the molded lines of blade working part is the variable cross section twisted blade, sectional area is reduced gradually by root to top, have relatively between adjacent two sections and reverse, the geometric data in blade working part cross section from root to the top: the cross section A-A that is positioned at root to the height of the cross section K-K of vane type line part be 0～164.12mm, axial width is 79.625～51.331mm, chord length is 83.583～83.496mm, flow inlet angle is 46.967 °～31.093 °, established angle is 71.677 °～37.46 °, the molded lines maximum ga(u)ge is 9.964～3.916mm, trailing edge thickness is 1.257～0.497mm, and the total height of blade working part is 164.12cm.
The utility model has the advantages that: one, the utility model adopts the pneumatic analysis design method that combines with strength vibration, and adopt B-spline curves curved surface theory to carry out blade forming, blade profile design fairing, make the Security and the high efficiency of this compressor blade organically combine, to guarantee energy safe and highly efficient operation under variable working condition, increase the stability of blade, improved blade efficiency, prolonged blade working life.Two, after blade of the present utility model is dried test, show that this compressor blade efficient has improved 3%.Two, blade root is adopted the flute profile blade root, and it has the bearing capacity height, characteristics easy for installation.
Description of drawings
Fig. 1 is a plan view of the present utility model, and Fig. 2 is the left view of Fig. 1, and Fig. 3 is the plan view of Fig. 1, and Fig. 4 is the superimposed schematic representation of vane type line each cross section tomography of part, and Fig. 5 is the schematic cross-section of blade working part 1.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1～Fig. 5, present embodiment is made up of blade working part 1 and blade root 2, blade working part 1 and blade root 2 are made one from top to bottom, the molded lines of blade working part 1 is the variable cross section twisted blade, along blade height sectional shape difference, sectional area is reduced gradually by root to top, have relatively between adjacent two sections and reverse, the geometric data in the cross section of blade working part 1 from root to the top: the cross section A-A that is positioned at root to the height H of the cross section K-K of vane type line part be 0～164.12mm, axial width B is 79.625～51.331mm, chord length b is 83.583～83.496mm, flow inlet angle α is 46.967 °～31.093 °, established angle β
yBe 71.677 °～37.46 °, molded lines maximum ga(u)ge T is 9.964～3.916mm, and trailing edge thickness δ is 1.257～0.497mm, and the total height L of blade working part 1 is 164.12cm.Design can guarantee the best stress of rotor like this, and avoids peak stress occurring in each tooth root portion and supporting plane.
Embodiment two: present embodiment is described in conjunction with Fig. 1～Fig. 4, the axial width B that the height H of the vane type line part of present embodiment is respectively the blade working part 1 of 49.24mm, 98.47mm, 147.71mm place correspondence respectively is: 72.233mm, 63.396mm, 54.332mm, pairing chord length b respectively is: 83.500mm, 83.486mm, 83.504mm, pairing flow inlet angle α respectively is: 45.233 °, 39.628 °, 32212 °, and pairing established angle β
yRespectively be: 59.119 °, 48.735 °, 40.066 °, pairing molded lines maximum ga(u)ge T respectively is: 8.188mm, 6.326mm, 4.414mm, pairing trailing edge thickness δ respectively is: 1103mm, 0.804mm, 0.570mm.Adopt the said structure parameter, not only make blade profile fairing more, can also guarantee that the contour structure size of blade meets design requirement, blade assembles easily simultaneously.Other composition and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 and Fig. 2 present embodiment is described, the described blade root 2 of present embodiment is the flute profile blade root, and the axial width W of blade root 2 is 83mm, and the total height K of blade root 2 is 39.91mm.The race of tangentially packing into.This structure makes the blade wheel rim of packing into securely, and assembling is stable, safe and reliable.Other composition and annexation are identical with embodiment one or two.
Concrete parameter in each cross section such as following table:
Claims (3)
1. gas compressor chopped-off head blade that hub diameter is Φ 762, it is made up of blade working part (1) and blade root (2), blade working part (1) and blade root (2) are made one from top to bottom, the molded lines of blade working part (1) is the variable cross section twisted blade, sectional area is reduced gradually by root to top, have relatively between adjacent two sections and reverse, it is characterized in that: the geometric data in blade working part (1) cross section from root to the top: the cross section A-A that is positioned at root to the height (H) of the cross section K-K of vane type line part be 0～164.12mm, axial width (B) is 79.625～51.331mm, chord length (b) is 83.583～83.496mm, flow inlet angle (α) is 46.967 °～31.093 °, established angle (β
y) be 71.677 °～37.46 °, molded lines maximum ga(u)ge (T) is 9.964～3.916mm, and trailing edge thickness (δ) is 1.257～0.497mm, and the total height (L) of blade working part (1) is 164.12cm.
2. the gas compressor chopped-off head blade that is Φ 762 according to the described a kind of hub diameter of claim 1, it is characterized in that: the axial width (B) that the height (H) of vane type line part is respectively the blade working part (1) of 49.24mm, 98.47mm, 147.71mm place correspondence respectively is: 72.233mm, 63.396mm, 54.332mm, pairing chord length (b) respectively is: 83.500mm, 83.486mm, 83.504mm, pairing flow inlet angle (α) respectively is: 45.233 °, 39.628 °, 32.212 °, and pairing established angle (β
y) respectively be: 59.119 °, 48.735 °, 40.066 °, pairing molded lines maximum ga(u)ge (T) respectively is: 8.188mm, 6.326mm, 4.414mm, pairing trailing edge thickness (δ) respectively is: 1.103mm, 0.804mm, 0.570mm.
3. the gas compressor chopped-off head blade that is Φ 762 according to claim 1 or 2 described a kind of hub diameters, it is characterized in that: described blade root (2) is the flute profile blade root, and the axial width (W) of blade root (2) is 83mm, and the total height (K) of blade root (2) is 39.91mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201721339U CN202065241U (en) | 2011-05-26 | 2011-05-26 | First-stage blade of air compressor with hub diameter of phi 762 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201721339U CN202065241U (en) | 2011-05-26 | 2011-05-26 | First-stage blade of air compressor with hub diameter of phi 762 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065241U true CN202065241U (en) | 2011-12-07 |
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ID=45059105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201721339U Expired - Lifetime CN202065241U (en) | 2011-05-26 | 2011-05-26 | First-stage blade of air compressor with hub diameter of phi 762 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168687A (en) * | 2011-05-26 | 2011-08-31 | 哈尔滨汽轮机厂有限责任公司 | Compressor first-stage blade with hub diameter of phi 762 |
| CN106351872A (en) * | 2016-09-12 | 2017-01-25 | 深圳友铂科技有限公司 | Compressor rotor blade meeting both pneumatic and strength requirements |
-
2011
- 2011-05-26 CN CN2011201721339U patent/CN202065241U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168687A (en) * | 2011-05-26 | 2011-08-31 | 哈尔滨汽轮机厂有限责任公司 | Compressor first-stage blade with hub diameter of phi 762 |
| CN102168687B (en) * | 2011-05-26 | 2013-03-27 | 哈尔滨汽轮机厂有限责任公司 | Compressor first-stage blade with hub diameter of phi 762 |
| CN106351872A (en) * | 2016-09-12 | 2017-01-25 | 深圳友铂科技有限公司 | Compressor rotor blade meeting both pneumatic and strength requirements |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |