Solid particle erosion resistant steam turbine nozzle
A solid particle, steam turbine technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve problems such as unsafe hazards, reduce unit efficiency, increase blade surface roughness and steam seal clearance, etc., to reduce maintenance costs, Erosion rate reduction and quantity reduction effect
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specific Embodiment approach 1
[0007] Specific implementation mode one: (see Figure 1 ~ Figure 3 ) This embodiment consists of a nozzle outer ring 1, an adjustment stage blade 2, and a nozzle inner ring 3, the nozzle inner ring 3 is arranged in the nozzle outer ring 1, and the adjustment stage blade 2 is fixed between the nozzle outer ring 1 and the nozzle inner ring 3 The space surrounded by the nozzle outer ring 1, the nozzle inner ring 3 and two adjacent regulating stage blades 2 forms a nozzle channel 4, and the solid particle impact angle a of the pressure surface K of the regulating stage blade 2 is 9-11°.
specific Embodiment approach 2
[0008] Specific implementation mode two: (see figure 1 ) The outer diameter Φ of the nozzle inner ring 3 of this embodiment is 1040 mm. Other compositions and connections are the same as in the first embodiment.
specific Embodiment approach 3
[0009] Specific implementation mode three: (see figure 2 ) The axial width B of the regulating stage blade 2 in this embodiment is 76.49mm. Other compositions and connections are the same as in the first embodiment.
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