Research on Maintenance Locking Device of Main Steam Valve of NPP
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Abstract
This paper introduces the maintenance locking device of main steam valve in the nuclear power plant. This application is used to avoid main steam valve displacement during maintenance in nuclear power generators. The locking device by adjusting the distance of the screw rod and the main steam valve, the main steam valve positioning and locked, lock tight main steam valve function in maintenance, so as to meet the steam turbine manufacturers on the installation and maintenance turbine interface without stress. At the same time, through the specification of the design, simplify the construction site operation difficulty, achieve the standard, high accuracy of maintenance requirements.
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