1 preface

Marine steamer loop pump basically is mixed by turbine, reducer 3 large parts comprise circular pump. Turbine couplet takes job of water pump of reducer drive loop, the seawater outside the boat inspiratory advocate condenser of slippery oil of condenser and lead plane makes be versed in qualitative refrigeration. Additional, when damaged of machine furnace cabin is slack, this pump discharges water pump as lash-up, the seeper eduction boat inside cabin outside.

Turbine is comprised by rotor and housing, rotor installation has the part such as pinion of blade, reducer and the gear oil pump that offer lubricating oil to each bearing. Contain on housing nozzle box, fast close seal unit of a powerful person, the first auxiliary a powerful person, the 2nd auxiliary a powerful person, clapboard, turbine, support bearing and stop push bearing to wait.

Reducer also is comprised by rotor and housing, how does rotor contain bearing of reducer gear, speed senser, support and stop turn the part such as bearing. Housing returns installation to have the part such as slippery oily condenser.

Circular pump still is comprised by rotor and housing, the installation on rotor has impeller (work namely annulus) , the component such as balata support bearing. Go to the lavatory for the overhaul, housing by two half composition, perpendicular in cent face is secured with bolt, housing includes the part such as the lid of guider of pump case, half, the second guider, pump, part that drink water.

2 improve a design put forward

The turbine timing of pump of loop of 2.1 former steamer by fast close a powerful person to control a nozzle, the first auxiliary a powerful person controls two nozzle, through this two a powerful person can finish each operating conditions of pump. The 2nd auxiliary a powerful person controls 3 nozzle, be used at excess load or hit commencement to use when turbine vapour parameter is reduced, also can serve as it reserve a powerful person. Because afore-mentioned 3 a powerful person are manually operated valve, consequently not only workload is big, and still implement automation hard. To solve this problem, will fast instead involving a powerful person charges a powerful person oneself, add the effect of control valve, additional two a powerful person do not change. Through running discovery this measure still puts in two problems: It is fast requirements involving a powerful person is larger, condition is spent to fall in small, very easy and automatic close dead; The 2 control that are pair of valve are more dispersive, when the boat is backing a car, want a hand to move open an auxiliary a powerful person undertakes controlling, cannot come true completely so, the automata that back a car, still need to go further so improve.

The oil cooler heat exchanger tube on 2.2 former pump is easy damaged, easy come away is in in contact.

Two sliding bearing of pump of 2.3 former loops are balata bearing. Because machine craft to lag behind, balata and cupreous cast are stuck receive function difference, the n in making is extremely low, this need improves a design.
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