How to solve the large fuel consumption of diesel generator set?
2021-11-19
Recently, some customers reported that the fuel consumption of the newly purchased diesel generator set is high. To solve this problem, our technicians have sorted out the following solutions. Laines will take you to know:
柴油发电机组运行时，因重油太粘，开、停机时都要用轻油清洗管线，以保证管路不被重油堵塞，这是操作规程规定的。开机时，因机组处于冷态，没有蒸汽，也只能用轻油。
During the operation of diesel generator set, because the heavy oil is too sticky, clean the pipeline with light oil during startup and shutdown to ensure that the pipeline is not blocked by heavy oil, which is stipulated in the operating procedures. When starting up, because the unit is in cold state, there is no steam, and only light oil can be used.
重油要经蒸汽加热后才能给主机使用。用废热锅炉产生蒸汽，即用柴油机排出的 300-400℃的废气作为热源，把水加热而产生蒸汽。机组负荷要在 50%以上时才有蒸汽产生，有蒸汽后才能加热重油。所以从开机至转重油运行需要一段时间，机组需要 30-40分钟。停机时，要用柴油把管路内的重油冲洗干净，保证管路冷态时不被堵塞，也需要一段时间，机组需10分钟左右。开、停机转油时间，即用柴油运行时间的长短和蒸汽压力、气温、管路长短等多种因素有关，不同的条件下转油时间会有差别。
The heavy oil can only be used for the main engine after being heated by steam. The waste heat boiler is used to generate steam, that is, the waste gas of 300-400 ℃ discharged from the diesel engine is used as the heat source to heat the water to produce steam. Steam can be generated only when the unit load is more than 50%, and heavy oil can be heated only when there is steam. Therefore, it takes a period of time from Startup to heavy oil operation, and the unit takes 30-40 minutes. During shutdown, clean the heavy oil in the pipeline with diesel to ensure that the pipeline is not blocked in cold state. It also takes a period of time, and the unit takes about 10 minutes. The oil transfer time during startup and shutdown, that is, the length of diesel operation time is related to many factors such as steam pressure, air temperature and pipeline length. The oil transfer time will be different under different conditions.
如果机组运行时间太短，例如2-3小时，往往刚转油不久又要停机，则生产成本大大增加。在这里提醒大家应尽量避免柴油发电机组短时间运行。
If the operation time of the unit is too short, such as 2-3 hours, and the unit is often shut down soon after oil transfer, the production cost will be greatly increased. Here we remind you to avoid short-term operation of diesel generator set.
如果按通常机组每天运行 5小时计，运行1小时的发电燃油成本成倍增加，运行2小时的发电燃油成本增加了26%，运行3小时的发电燃油成本增加了15%。
If the normal unit operates for 5 hours a day, the fuel cost of power generation for 1 hour of operation is doubled, the fuel cost of power generation for 2 hours of operation is increased by 26%, and the fuel cost of power generation for 3 hours of operation is increased by 15%.
以上就是机组油耗大的解决办法，你学会了吗？
The above is the solution to the high fuel consumption of the unit. Have you learned it?