| 摘要:以某船用柴油机冷却系统为研究对象，采用网格法建立了单点和多点两种温控策略仿真模型。基于该模型对两种温控策略分别开展了高温环境、标准环境和极寒环境条件下推进特性全工况对比分析，并结合现有机型试验中出现的温度波动问题，研究分析两种温控策略的环境适应性。研究表明:高温循环采用多点控制，可适当提高循环水温,以改善柴油机在极寒环境条件下的性能稳定；低温循环采用单点控制，将扩大环境对循环水温的影响，应采取适当措施防止系统过冷；此外，控制循环进口温度可提高冷却系统对外围附件的适应性，避免因外围系统配置不合理而导致的系统温度波动等问题。 |
| 关键词: 船用柴油机 冷却系统 温控策略 环境适应性 |
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| Study on Environmental Adaptability of Temperature Control Strategy for Marine Diesel Engine Cooling System Based on Network Method |
| Cao Yingjia,Zhang Xueyan,Huo Xiaomeng,Zhao Guanhua,Yang Jingquan |
| Shanghai Marine Diesel Engine Research Institute，Shanghai 201108 |
| Abstract:The simulation models of single and multiple temperature control strategy of one type of marine diesel engine cooling system are established through the network method. Based on the simulation model, the two temperature control strategies are compared and analyzed under the conditions of high temperature environment, standard environment and extreme cold environment respectively. And combined with temperature fluctuation problems appeared in the test, the adaptability of two temperature control strategies to different environments are studied. The results show that the adaptability to the extreme cold environment can be improved as the circulating temperature is increased properly by the high temperature cycle with multi-control; the impact of the environment on the circulating temperature will be increased by the low temperature cycle with single control, appropriate measures should be recommended to prevent the system from overcooling; besides, the adaptability to the external accessories can be improved by circulating inlet temperature control, avoiding system temperature fluctuation caused by unreasonable external system configuration. |
| Key words: marine diesel engine cooling system temperature control strategy environmental adaptability |
