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海上钻井平台距离陆地较远,主机使用的燃油需经过多次驳运、换仓、管线传输等流程,使得本来很干净的燃油受污染含有水分、杂质。燃油杂质及水分含量大的话会降低燃烧率,从而影响主机动力的输出,同时减短燃油过滤系统的过滤器寿命,加快对喷油器的磨损,降低喷油器的寿命。平台配置有燃油净化系统,但是主柴油机在使用过程中存在滤器消耗过快的现象,经过研究分析,发现平台燃油净化系统设计上缺少一个燃油沉淀柜,燃油净化器在燃油日用油柜内循环净化,但是净化的过程也导致日用油柜内的燃油不停的搅动,日用油柜的燃油不能有效沉淀,导致从日用油柜输送至柴油机的燃油还是含有杂质及水分。本论文旨在通过现场分析研究,在平台燃油净化系统上增配燃油沉淀柜的可能性,从而实现燃油的有效净化。
The offshore drilling platform is far away from the land. The fuel used by the host machine needs to undergo multiple procedures such as barge transport, warehousing and pipeline transmission, so that the originally clean fuel is contaminated with water and impurities. Large fuel impurities and moisture content will reduce the combustion rate, thus affecting the host power output, while reducing fuel filter system filter life, speed up the injector wear and reduce fuel injector life. The platform is equipped with a fuel purification system, but the main diesel engine consumes too much filter during its use. After research and analysis, it is found that there is a lack of a fuel settling tank in the platform fuel purification system design, and the fuel purifier circulates through the fuel daily oil tank However, the decontamination process also causes the fuel in the daily oil tank to constantly agitate. The oil in the daily oil tank can not be effectively precipitated. As a result, the fuel delivered from the daily oil tank to the diesel engine still contains impurities and moisture. The purpose of this thesis is to analyze and research on the site to increase the possibility of fuel settling tank on the platform fuel purification system so as to effectively purify the fuel oil.