Description

Description:

When the mechanical over speed mechanism has blocked the steam turbine unit and needs to reset, it is necessary to manually push the manual trip handle to the “reset” position and hold it for a while. The handle drives the trip reset connecting rod to make the trip reset lever rotate anticlockwise to push the hook to drive the emergency trip sliding valve to move to the left to re close the oil drain of the mechanical over speed and manual trip main pipe. The oil pressure in the upper part of diaphragm valve rises, the AST oil pressure in the lower part of diaphragm valve is established, and the unit is reset.

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