A rpt type water turbine main shaft sealing device
A main shaft sealing and water turbine technology, applied in the directions of hydroelectric power generation, mechanical equipment, engine components, etc., can solve the problems of damaging the sealing of the sealing device, uneven spring pressure, and high requirements, and reduce the impact of sealing, reduce resistance, and seal performance. Good results
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[0018] like figure 1 As shown, a RPT type hydraulic turbine main shaft sealing device provided in this embodiment includes a regulating cylinder 1, an end cover 2, an inner ring 3, an O-ring 4, a sealing ring 5 and a rotating ring 6, and the upper end of the end cover 2 is provided with A regulating cylinder 1, and the telescopic end of the regulating cylinder 1 is located at the lower end of the end cover 2, the end cap 2 is set on the upper end of the inner ring 3, and the lower end of the inner ring 3 is connected with the telescopic end of the regulating cylinder 1; the outer circle of the upper end of the inner ring 3 There is also an O-ring seal 4 between the inner hole of the end cover 2;
[0019] The upper end surface of the inner ring 3 is provided with two water inlet holes 301, the lower end surface of the inner ring 3 is provided with an annular groove 302, the water inlet hole 301 communicates with the annular groove 302, and the annular groove 302 on the inner ri...
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