40米海洋多用途拖船规格书2.docxVIP

Group No 20Machinery机 械Group No. 20-1Propulsion Plant推进设备20-1.1 General Requirement 基本要求Two (2) independent propulsion plants, each unit shall consist of:2套独立推进系统，每套的配置为：One (1) Main Engine1 台主机One (1) Fixed Pitch Propeller with nozzle1台带导管定距螺旋桨The entire propulsion plant is to be designed, constructed and installed according to the rules and requirements of Classification Society, IMO and National Societies.全套推进设备需根据国际海事组织IMO和相关国家船级社规则和要求进行设计，制造，安装。Exhaust gas emission limitations, according to IMO, shall be noted as well as structural measures for sea-going vessels for the prevention of marine pollution by oil, in conformity with MARPOL 73/78. Acceptance, installation and calculation.The installations of main and auxiliary machineries including their accessories are to be easily accessible in order to allow maintenance and repairs and carried out with a minimum expenditure for effort and time.按照IMO规定，排放标准应严格限制海船结构， 与《防止船舶污染国际公约》73/78 相符。认可、安装以及计算,各主、辅机及其相关配件应合理配置，便于短时耗、低话费进行维修和维护。The minimum life expectation of all machinery components according to part of this specification shall be observed.此规格书中应标注出所有机械组件的保证最短使用寿命。Before installation on board, the important machinery shall be inspected and proven by Classification Society and the Owner at manufacturers test bed. The designed output shall be demonstrated during trial as per manufacturer standard procedure.各主要器械上船安装之前，应在所有者在场情况下，经由船级社检验证明，按照生产商标准程序实地在试车池/床演示原设计输出。The following ambient data shall be used for design and material selection purpose, otherwise the required ambient data is to be mentioned:产品设计及材料选择请参考，标明以下环境数据，Air temperature 45 °C Sea water 32 °C空气温度： 45°C 海水温度： 32°C For recooling of machinery, the system shall be done only by fresh cooling water, providing that the temperature shall not be more than 36 °CAir pressure1 bar为实现器械二次冷却，冷却系统进水为36°C 以下淡水。空气压力 1BarA torsional vibration analysis of shafting system shall be prepared by the engine manufacturer and to be submitted to the Owner after approva