Compressor first-stage blade with hub diameter of phi 762
A technology of compressors and blades, which is applied in the direction of mechanical equipment, machines/engines, liquid fuel engines, etc. It can solve the problems of the first-stage blades of the compressor, such as uneven surface, affecting the safe operation of the compressor, and unstable quality, so as to achieve load bearing High capacity, improved efficiency, and the effect of improving blade efficiency
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specific Embodiment approach 1
[0007] Specific implementation mode one: combine Figure 1 to Figure 5 Describe this embodiment, this embodiment is made up of blade working part 1 and blade root 2, and blade working part 1 and blade root 2 are made into one from top to bottom, and the shape line of blade working part 1 is variable cross-section torsion blade, along blade The shape of the height section is different, the cross-sectional area gradually decreases from the root to the top, and there is relative torsion between two adjacent sections. The B-spline curve and surface theory is used to shape the blade. The design of the blade surface is smooth. The root and top of the blade working part 1 The geometric data of the section: the height H of the section number A-A at the root and the section number K-K at the top are 0mm and 164.12mm respectively, the axial width B is 79.625mm and 51.331mm respectively, and the chord length b is 83.583mm and 83.496mm respectively. Air angle α is 46.967° and 31.093° resp...
specific Embodiment approach 2
[0008] Specific implementation mode two: combination Figure 1 ~ Figure 4 To illustrate this embodiment, the heights H of the profiled parts of the blades in this embodiment are 49.24mm, 98.47mm, and 147.71mm respectively, and the corresponding axial widths B of the blade working part 1 are respectively: 72.233mm, 63.396mm, and 54.332mm , the corresponding chord length b is respectively: 83.500mm, 83.486mm, 83.504mm, the corresponding intake angle α is respectively: 45.233°, 39.628°, 32.212°, and the corresponding installation angle β y They are respectively: 59.119°, 48.735°, and 40.066°, and the corresponding maximum thickness T of the molding line is: 8.188mm, 6.326mm, and 4.414mm, respectively, and the corresponding thicknesses of the air outlet edge δ are: 1.103mm, 0.804mm, respectively. , 0.570mm. Using the above structural parameters not only makes the profile of the blade smoother, but also ensures that the shape and size of the blade meet the design requirements, and...
specific Embodiment approach 3
[0009] Specific implementation mode three: combination figure 1 and figure 2 Describe this embodiment, the blade root 2 of this embodiment is a toothed blade root, the axial width W of the blade root 2 is 83 mm, and the total height K of the blade root 2 is 39.91 mm. Fits tangentially into the wheel groove. This structure enables the blade to be firmly installed into the rim, and the assembly is stable, safe and reliable. Other compositions and connections are the same as those in Embodiment 1 or 2.
[0010] The specific parameters of each section are as follows:
[0011]
[0012]
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