FIELD: power plant engineering.
SUBSTANCE: turbine control valve steam belt cover comprises a power flange with holes to receive the pins arranged in the steam belt flange, a support flange accommodating the valve drive mechanism and a central rod coupling both flanges and accommodating an axle box, a rod and the valve seal, the central rod being provided with a retaining collar with one of its end faces making a parting plane with the steam belt. The rod opposite part has a threaded section, while the flanges allow being fitted on and removed from the rod and its independent motion relative to the rod. Also, the power and support flanges are provided with service holes allowing regulation of the cover weight.
EFFECT: perfected steam belt production process, higher quality of the turbine steam distribution units mounting, hence higher reliability of valves and turbines, simplified repair, higher quality repair, lower labour consumption.
2 cl, 8 dwg
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