Dock Ship Generator Cooling System Research And Application

To shorten shipbuilding cycle, directly improving the shipyard competitiveness and economic benefits. How to shorten the construction cycle, has become one of the core research topic each shipyard. The shipyard ships docking construction cycle has reached a higher level, and underwater construction period, but there is a big gap, the construction process under water is actually to the whole ship equipment debugging inspection, underwater equipment debugging to test cycle is shortened, means the construction period of ship underwater for cutting. While debugging equipment is under water for the marine generator inspection based on. Therefore, the generator commissioning work forward to dock in the implementation, can be very good to shorten shipbuilding cycle, fresh water cooling system and docking generator of debugging is a generator can operate normally and has good cooling performance, want to maximize and optimize the performance of marine generator water cooling system in the dock, it is necessary to understand the thermodynamic the dynamic process of the hydraulic generator. The MATLAB software is one of the most popular computer modeling and simulation tools, simulation of ship generator fresh water cooling system to establish MATLAB introducing temporary seawater tooling pipeline system, has the significance of good.This paper takes Dalian Shipyard built in BC1800series of bulk cargo ship cabin freshwater and seawater cooling system as the foundation, based on thermodynamic theory, through the analysis of the heat exchanger and the marine diesel generator heat transfer mathematic model, get fresh water cooling system for introducing temporary seawater tooling pipeline system after the. Then the related theory in fluid mechanics, through the analysis of pipeline system, hydraulic mathematical model of ship diesel generator fresh water cooling system, and then use Matlab software for modeling and simulation, the simulation results came out, through the analysis of the simulation curves with known data in contrast, accuracy and flexibility in order to verify the calculation method. The combination of fluid mechanics and heat transfer of knowledge in law, the standard formula, for full feasibility study, completed the generator shuigong tubing minimum caliber value calculation and the submersible pump minimum flow value, then use AUTOCAD drawing tools to make temporary seawater tooling system principle diagram, and tested in real ship to insure the success of debugging, docking generator inspection. To finish generator test in dock, not only to avoid conflict with the host shaft load line fortifications ship launch, also provides a necessary guarantee for debugging the whole ship equipment, good to shorten vessel underwater construction cycle, to maximize the shipyard economic interests, so as to achieve the advanced level of Japan and South Korea to build in the true sense.