The adjusting control function of dynamoelectric control valve
From;    Author:Stand originally

The improvement of 3.1 dynamoelectric control valve is designed

Improve above all designed nozzle box, make former fast close a powerful person to control nozzle directly no longer, rise only advocate steam valve and fast the action that involves a powerful person, its hotshot is moved switch is moved with automatic, hand fast close, cancelled its timing function; Former fast pilot involving a powerful person a nozzle and pilot of the first auxiliary a powerful person two nozzle are controlled by the dynamoelectric control valve of new design. Former the 2nd auxiliary a powerful person still is withheld, call auxiliary a powerful person, action is changeless.

The dynamoelectric control valve of new design by dynamoelectric actuator drive, pass gearshift gear decelerate, the lever of a powerful person of the valve that combines by size a powerful person makes horizontal way move, make valve leaves shut, rise to adjust the action of the quantity taking steam of turbine. Spend in small when taking steam, the adjusting control ability with young superior a powerful person is able to fill minute of play. Dynamoelectric actuator sets handwheel of on the spot, can hand of on the spot uses control dynamoelectric control valve, still set electronic-controlled box, but beyond is apart from electronic-controlled and dynamoelectric control valve, the personal computer that also can pass central station of floating dock undertakes automata to dynamoelectric control valve. This adjusting control function of dynamoelectric control valve can be satisfied completely advocate turbine group, back a car the requirement of each operating mode, because pump of this steamer loop came true,start, move and stop the automation of machine.

The settlement of problem of heat exchanger tube of 3.2 oil cooler

Above all the reason of easy to oil cooler heat exchanger tube damaged undertook an analysis, in thinking because B30 canal is producing process of treatment, installation to reach carriage process,main reason is, grind with other component, bump, touch, contact for a long time with seawater in moving after installation, briny contaminant can stop in the dent that is injured, electrochemistry is formed to corrode below briny action, the scathing part that makes B30 is in charge of is smaller and smaller, down to is final burst. Because of this formulate specific requirement, ask the manufactory asks to undertake production, installation is mixed by the technology namely carry, avoid this kind of thing happening as far as possible.

The contact easy come away of oil cooler heat exchanger tube, classics analysis is to bilge quality problem of the canal. Will bilge via a large number of strict tests and computation control tubal power is inside certain limits, make bilge the canal can be accomplished already sealed, do not make contact is in come away again, make pipe maintains inside primary strength limits, do not send bilge crack.

The settlement of problem of 3.3 balata bearing
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