CN202065242U - Intermediate stage blade of air compressor with hub diameter of Phi 762 - Google Patents
Intermediate stage blade of air compressor with hub diameter of Phi 762 Download PDFInfo
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- CN202065242U CN202065242U CN2011201721358U CN201120172135U CN202065242U CN 202065242 U CN202065242 U CN 202065242U CN 2011201721358 U CN2011201721358 U CN 2011201721358U CN 201120172135 U CN201120172135 U CN 201120172135U CN 202065242 U CN202065242 U CN 202065242U
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Abstract
An intermediate stage blade of an air compressor with a hub diameter of Phi 762 relates to an air compressor blade, and overcomes the problems of the intermediate stage blade of the air compressor with the hub diameter of Phi 762 that the efficiency is low, the service life is short and the safe operation of the air compressor is influenced. The blade consists of a blade working part and a blade root which are vertically integrated; the molded line of the blade working part is a variable cross-section twisted blade; the cross sections have different shapes along the height of the blade and are gradually reduced from root to top in area; the neighboring two cross sections relatively twist; and the geometric data of the cross sections of the blade working part from root to top is as follows: the cross section height from cross section No. A-A to cross section No. F-F is from 6.17mm to 84.20mm; the axial width is from 52.293mm to 41.276mm; the chord length is from 57.806mm to 57.810mm; the air inlet angle is from 44.337 DEG to 30.678 DEG; the mounting angle is from 63.443 DEG to 45.197 DEG; the maximum thickness of the molded line is from 6.761mm to 4.722mm; the thickness of the air outlet edge is from 0.397mm to 0.281mm; and the overall height of the blade working part is 84.95cm. The intermediate stage blade is applicable to the air compressor with the hub diameter of Phi 762.
Description
Technical field
The utility model relates to a kind of compressor blade.
Background technique
Existing hub diameter is that the gas compressor intergrade blade design method of Φ 762 is original, and calculation accuracy is lower, can't carry out accurate Pneumatic Calculation and Flow Field Calculation, thereby make blade profile design not fairing, 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 to be that the gas compressor intergrade blade efficiency of Φ 762 is low for solving hub diameter, and working life, the short and problem that influences the gas compressor safe operation was the gas compressor intergrade blade of Φ 762 and a kind of hub diameter is provided.
The utility model is to address the above problem the technological scheme of taking to be: a kind of hub diameter of the utility model is that the gas compressor intergrade blade of Φ 762 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, 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 blade working part cross section from root to the top: cross section A-A to the depth of section of cross section F-F be 6.17～84.20mm, axial width is 52.293～41.276mm, chord length is 57.806～57.810mm, flow inlet angle is 44.337 °～30.678 °, established angle is 63.443 °～45.197 °, the molded lines maximum ga(u)ge is 6.761～4.722mm, trailing edge thickness is 0.397～0281mm, and the total height of blade working part is 84.95cm.
The utility model has the advantages that: one, the utility model is in the full three dimensional design so that one dimension/standard three-dimensional/full three-dimensional is pneumatic, thermodynamic analysis calculates this intergrade blade, make the Security and the high efficiency of this compressor blade organically combine, guaranteed that hub diameter is gas compressor energy safe and highly efficient operation under variable working condition of Φ 762, increased the stability of blade, improve blade efficiency, prolonged blade working life.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 each cross section tomography of blade-section 1 molded lines, and Fig. 5 is that blade working partly shows blade profile parameters W1, b, α, β
y, T, δ schematic representation.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1 one Fig. 5, a kind of hub diameter of present embodiment is that the gas compressor intergrade blade of Φ 762 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: cross section A-A to the depth of section H of cross section F-F be 6.17～84.20mm, axial width W1 is 52.293～41.276mm, chord length b is 57.806～57.810mm, flow inlet angle α is 44.337 °～30.678 °, established angle β
yBe 63.443 °～45.197 °, molded lines maximum ga(u)ge T is 6.761～4.722mm, and trailing edge thickness δ is 0.397～0.281mm, and the total height L of blade working part 1 is 84.95cm.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 and Fig. 5, the axial width W1 that the height H of the blade working part 1 of present embodiment is respectively the blade working part 1 of 21.72mm, 37.34mm, 68.58mm place correspondence respectively is: 50.489mm, 48.429mm, 43.999mm, pairing chord length b respectively is: 57.804mm, 57.803mm, 57.806mm, pairing flow inlet angle α respectively is: 41.461 °, 37.915 °, 33.513 °, and pairing established angle β
yRespectively be: 59.569 °, 55.660 °, 48.451 °, pairing molded lines maximum ga(u)ge T respectively is: 6.342mm, 5.934mm, 5.107mm, pairing trailing edge thickness δ respectively is: 0.379mm, 0.351mm, 0.304mm.Adopt the said structure parameter, when the contour structure size that guarantees blade meets design requirement, blade is assembled easily.Other composition and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 and Fig. 2 present embodiment is described, the blade root 2 of present embodiment is the flute profile blade root, and the axial width W2 of blade root 2 is 53mm, and the total height K of blade root 2 is 35.1mm.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 intergrade 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, along blade height sectional shape difference, 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: cross section A-A to the depth of section (H) of cross section F-F be 6.17～84.20mm, axial width (W1) is 52.293～41.276mm, chord length (b) is 57.806～57.810mm, flow inlet angle (α) is 44.337 °～30.678 °, established angle (β
y) be 63.443 °～45.197 °, molded lines maximum ga(u)ge (T) is 6.761～4.722mm, and trailing edge thickness (δ) is 0.397～0.281mm, and the total height (L) of blade working part (1) is 84.95cm.
2. the gas compressor intergrade 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 (W1) that the height (H) of blade working part (1) is respectively the blade working part (1) of 21.72mm, 37.34mm, 68.58mm place correspondence respectively is: 50.489mm, 48.429mm, 43.999mm, pairing chord length (b) respectively is: 57.804mm, 57.803mm, 57.806mm, pairing flow inlet angle (α) respectively is: 41.461 °, 37.915 °, 33.513 °, and pairing established angle (β
y) respectively be: 59.569 °, 55.660 °, 48.451 °, pairing molded lines maximum ga(u)ge (T) respectively is: 6.342mm, 5.934mm, 5.107mm, pairing trailing edge thickness (δ) respectively is: 0.379mm, 0.351mm, 0.304mm.
3. the gas compressor intergrade blade that is Φ 762 according to claim 1 or 2 described a kind of hub diameters, it is characterized in that: blade root (2) is the flute profile blade root, and the axial width (W2) of blade root (2) is 53mm, and the total height (K) of blade root (2) is 35.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201721358U CN202065242U (en) | 2011-05-26 | 2011-05-26 | Intermediate stage blade of air compressor with hub diameter of Phi 762 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201721358U CN202065242U (en) | 2011-05-26 | 2011-05-26 | Intermediate stage blade of air compressor with hub diameter of Phi 762 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065242U true CN202065242U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201721358U Expired - Lifetime CN202065242U (en) | 2011-05-26 | 2011-05-26 | Intermediate stage blade of air compressor with hub diameter of Phi 762 |
Country Status (1)
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| CN (1) | CN202065242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352871A (en) * | 2013-06-26 | 2013-10-16 | 哈尔滨汽轮机厂有限责任公司 | High-pressure middle-stage moving blade of gas compressor for gas turbine |
| CN103498812A (en) * | 2013-05-23 | 2014-01-08 | 哈尔滨汽轮机厂有限责任公司 | Low-pressure middle-stage moving blade of gas compressor of gas turbine |
-
2011
- 2011-05-26 CN CN2011201721358U patent/CN202065242U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498812A (en) * | 2013-05-23 | 2014-01-08 | 哈尔滨汽轮机厂有限责任公司 | Low-pressure middle-stage moving blade of gas compressor of gas turbine |
| CN103352871A (en) * | 2013-06-26 | 2013-10-16 | 哈尔滨汽轮机厂有限责任公司 | High-pressure middle-stage moving blade of gas compressor for gas turbine |
| CN103352871B (en) * | 2013-06-26 | 2015-09-16 | 哈尔滨汽轮机厂有限责任公司 | A kind of high pressure intergrade moving vane of gas turbine gas compressor |
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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 |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |