工程船舶的冷却水系统设计方法研究
发布时间：2019-03-25 08:22
【摘要】：21世纪是海洋的世纪，海洋正向人类提供越来越多的资源，在需求和利润的驱动下，工程船舶的建设将进入快速发展的时期；与此同时，环境污染和能源短缺越来越成为全球性的问题，船舶行业作为碳排放大户理应关注这些问题。在这样背景下，有必要对工程船舶的系统设计方法进行研究，，使之更适应工程船舶的特点，减少碳排放并提高经济性。 本文通过分析工程船舶的特点，进而讨论工程船舶的冷却水系统的设计要点，特别是其与运输船型的冷却水系统的异同之处；在此基础上，通过实船数据，分析工程船舶冷却水系统的参数特征，并由此指出冷却水系统的改进设计方向； 通过对冷却水系统的淡水侧的设计改进的重点在于优化船用设备的冷却参数，本文将讨论船用设备的冷却参数合理化选择，并总结船用设备冷却参数的估算方法； 通过对板式冷却器总传热系统变化的研究，总结海水侧的海水流量需求随着海水温度和系统热负荷而改变的规律，在计算结果的基础上，讨论采用变频/双速海水泵的优点和限制条件。 最后将应用上述分析讨论的结果对某型海缆船的冷却水系统设计作出改进，包括设备的冷却参数合理化选择，冷却水系统流量估算，板式冷却器选型和采用变频/双速海水泵进行优化。
[Abstract]:The 21st century is the century of the ocean. The ocean is providing more and more resources to mankind. Driven by the demand and profit, the construction of engineering ships will enter a period of rapid development. At the same time, environmental pollution and energy shortage are becoming more and more global problems, which should be paid attention to by shipping industry as a big carbon emitter. In this context, it is necessary to study the system design methods of engineering ships, so as to make them more suitable to the characteristics of engineering ships, reduce carbon emissions and improve the economy. By analyzing the characteristics of engineering ship, this paper discusses the design essentials of cooling water system of engineering ship, especially the similarities and differences between the cooling water system of engineering ship and the type of transport ship. On this basis, through the real ship data, the parameter characteristics of the engineering ship cooling water system are analyzed, and the improved design direction of the cooling water system is pointed out. By improving the design of the fresh water side of the cooling water system, the emphasis is to optimize the cooling parameters of the marine equipment. In this paper, the reasonable selection of the cooling parameters of the marine equipment will be discussed, and the estimation methods of the cooling parameters of the marine equipment will be summarized. Based on the study of the change of the total heat transfer system of the plate cooler, the rule that the seawater flow demand on the side of the sea water changes with the sea water temperature and the heat load of the system is summarized. On the basis of the calculated results, The advantages and limitations of variable frequency / double speed seawater pump are discussed. Finally, the design of cooling water system of a cable ship is improved by using the above analysis and discussion results, including the rational selection of cooling parameters of the equipment and the estimation of cooling water system flow. Plate cooler type selection and use of frequency conversion / dual-speed seawater pump for optimization.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U664.814
本文编号：2446809
[Abstract]:The 21st century is the century of the ocean. The ocean is providing more and more resources to mankind. Driven by the demand and profit, the construction of engineering ships will enter a period of rapid development. At the same time, environmental pollution and energy shortage are becoming more and more global problems, which should be paid attention to by shipping industry as a big carbon emitter. In this context, it is necessary to study the system design methods of engineering ships, so as to make them more suitable to the characteristics of engineering ships, reduce carbon emissions and improve the economy. By analyzing the characteristics of engineering ship, this paper discusses the design essentials of cooling water system of engineering ship, especially the similarities and differences between the cooling water system of engineering ship and the type of transport ship. On this basis, through the real ship data, the parameter characteristics of the engineering ship cooling water system are analyzed, and the improved design direction of the cooling water system is pointed out. By improving the design of the fresh water side of the cooling water system, the emphasis is to optimize the cooling parameters of the marine equipment. In this paper, the reasonable selection of the cooling parameters of the marine equipment will be discussed, and the estimation methods of the cooling parameters of the marine equipment will be summarized. Based on the study of the change of the total heat transfer system of the plate cooler, the rule that the seawater flow demand on the side of the sea water changes with the sea water temperature and the heat load of the system is summarized. On the basis of the calculated results, The advantages and limitations of variable frequency / double speed seawater pump are discussed. Finally, the design of cooling water system of a cable ship is improved by using the above analysis and discussion results, including the rational selection of cooling parameters of the equipment and the estimation of cooling water system flow. Plate cooler type selection and use of frequency conversion / dual-speed seawater pump for optimization.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U664.814
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