In the early years, the crew of the Xiamen port shipping company's port tug business worried about high fuel consumption, high cost and short oil change period. You know, whether medium speed or high-speed, fuel costs account for about 90% of the operating cost of an engine. For this reason, they often held meetings to discuss solutions.
Just then, Caterpillar's technical experts and agents took their own solutions to Xiamen port shipping company. With the help of Caterpillar, the Xiamen port shipping company adopted a scheme for installing Cat 3516C high speed machines on "Xiamen towage 18" and "Xiamen Harbour 19", and through 13 months of tracking tests found that the use of the tow wheel of the Cat 3516C high speed machine can save fuel consumption on average annually than the tug of other brand medium speed machines. Up to 58.8 tons (1800 hours per year).
Save so much oil? How does the Cat 3516C high speed machine do?
Step one: "innate talent" and "acquired discipline"
The Cat 3516C series engine comes with "fuel saving talent". Compared with the medium speed machine, the high speed machine is lighter in weight and less inertia in main moving parts. Therefore, it needs less resistance at low speed and low load.
According to the "large data" analysis given by Caterpillar MAI, the tug has the characteristics of "large Mara car". More than 80% of the time is running below the rated power range of 20% hosts, while less than 5% of the time running at 70% power. When the load is less than 60%, the advantage of the high-speed machine is more obvious. The typical port tug is in such a power interval with up to 80% of the working time, the total fuel consumption rate greatly reduced.
Of course, "talent" is not the only reason why Cat 3516C has achieved such a good result. The following day's practice is equally important. Compared to the medium speed machine of the mechanical control injection system, which is still in the mainstream at home, the Cat 3516C series engine has entered the era of "electric spray" as early as 10 years ago. Therefore, in 2014, the Xiamen port shipping service was first adopted by the high-speed machine in the Chinese port refutation unit, which can also be regarded as a brave step to the "electronic intelligence".
Second steps: oil sample analysis, 2000 hour oil exchange cycle
The maintenance interval provided by engine manufacturers is based on the definition of working hours according to the common application conditions, as well as the oil changing cycle. But the port tug has unique load characteristics. It is not scientific to measure whether the engine needs to replace oil in simple working hours.
Based on this, under the requirements of Xiamen port shipping service, the Caterpillar professional customer service team, with the aid of Cat S O. S oil sample analysis technology, determines the true state of the oil, and makes an extension of the oil exchange test program. After 1 years of close cooperation, the oil changing cycle of 8 Cat 3516C has been extended from 1000 hours to nearly 2000 hours. After extending the oil exchange cycle, not only the equipment attendance rate is not affected, but also the maintenance cost and labor cost are saved, and the environment is also contributed to the protection of the environment.
Note: because of the different equipment condition and working condition, it does not represent all the other engines to carry out the oil transfer scheme. It does not mean that the oil exchange period of the 8 engines is extended to 2000 hours once and for all. After the oil change, it needs to be within 1000 hours, every 500 hours, and after 1000 hours, every 250 hours. Sampling and scientifically defining the length of the oil change cycle.
The third step: professional team, accurate data analysis, pioneer escort.
Behind the Xiamen port's high efficiency fuel saving for tug high speed machines, Caterpillar's professional service team's vanguard escort is indispensable.
The Caterpillar professional service team will carry out a planned inspection service for the Caterpillar host ships each year. The service includes the engine TA1/TA2/ test report / motivational disconnected cylinder test / state report / oil sample analysis and so on. The service team will have real data for each analysis content as a record. By analyzing the physical and chemical indexes of the engine oil, the pollution and the metal content in the oil, the health of the internal components of the engine is judged, and the professional improvement suggestions and suggestions are given.
Since 2014, nearly 60% of the global delivery ports have been used as high speed machines for tugs, while Caterpillar has more than 50% market share, and its reliability and durability significantly reduced the total use cost for the global users. Caterpillar's focus on energy conservation in the field of shipping is continuing.
