柴油机的磨合、使用、与功率如何进行匹配?
(1)、一般当新的或经大修后的柴油发电机,在正式使用前须经60h磨合运转,方可投入全负荷使用。以改善柴油机各运动部件的工作状况,提高柴油机的运行可靠性和使用寿命。
(1) Generally, when a new or overhauled Diesel generator is put into use, it must be run in for 60 hours before it can be put into full load use. To improve the working condition of various moving components of the diesel engine, and to enhance the operational reliability and service life of the diesel engine.
(2)、磨合应视柴油机用途和拖载方式的不同,来考虑具体磨合方案。原则上随着磨合时间的增加分阶段逐步提高柴油机的转速和负载,在整个磨合期内负荷以12h标定功率的50~80%为宜,转速应不大于标定转速的80%为好。但在磨合的开始阶段空运转或过小负载情况下的运转时间不宜太长。
(2) The specific running-in plan should be considered based on the different uses and towing methods of the diesel engine. In principle, as the running in time increases, the speed and load of the diesel engine should be gradually increased in stages. During the entire running in period, the load should be 50-80% of the rated power for 12 hours, and the speed should not exceed 80% of the rated speed. However, the operating time should not be too long during the initial stage of running-in when idling or under small loads.
注:每当更换缸套、活塞、活塞环、连杆轴瓦和曲拐后亦应按上述磨合工况适当进行短期磨合。
Note: Whenever cylinder liners, pistons, piston rings, connecting rod bearing shells, and cranks are replaced, short-term running-in should also be carried out appropriately according to the above running-in conditions.
柴油机的使用:
Use of diesel engines:
(1)、柴油发电机组投入正常使用后,应经常注视所有仪表的指标值和观察整机运行的动态:要经常检查冷却系统和各部分润滑油的液面,如发现有不符规定要求或出现损漏时,应即给予补充或检查原因予以排除。
(1) After the diesel generator set is put into normal use, always watch the indicator values of all instruments and observe the dynamic operation of the whole machine: frequently check the level of lubricating oil in the cooling system and various parts. If there is any non-compliance with the specified requirements or leakage, immediately supplement or check the causes for elimination.
(2)、在运转过程中,特别是当突减负荷时,应注意防止因调速器失灵使柴油机运转突然升高超过规定值,当出现此类情况应先迅速采取紧急停车措施,然后再查清原因。
(2) During operation, especially when sudden load reduction occurs, attention should be paid to preventing the sudden increase in diesel engine operation beyond the specified value due to governor failure. When such situations occur, emergency shutdown measures should be taken quickly before identifying the cause.
柴油机与工作机械功率的匹配:
Matching of diesel engine and working machinery power:
用户选用柴油机时不仅应考虑与之配套的工作机械所需功率的大小,还须考虑工作机械的负荷率,比如是间歇使用,还是连续使用。同时要考虑工作机械的运行经济性,即负载的工作合理性和柴油机的特性的必须合理匹配。
When selecting a diesel engine, users should not only consider the power required by the supporting working machinery, but also consider the load rate of the working machinery, such as whether it is used intermittently or continuously. At the same time, it is necessary to consider the operational economy of the working machinery, that is, the rationality of the load and the characteristics of the diesel engine must be reasonably matched.
因此,柴油机功率的正确标定和柴油机与工作机械特性的合理匹配乃是保证柴油机可靠、长寿命以及经济运行的前提,否则将可能使柴油机超负荷运行和产生不必要的故障;或负载功率过小,柴油机功率不能得到充分的运用,这样既不经济并且易产生机油等弊病。
Therefore, the correct calibration of diesel engine power and the reasonable matching of diesel engine and working mechanical characteristics are the prerequisites for ensuring reliable, long life, and economical operation of diesel engines. Otherwise, it may cause overloaded operation and unnecessary faults of the diesel engine; Or if the load power is too small, the diesel engine power cannot be fully utilized, which is not economical and prone to problems such as engine oil.
下一篇:柴油发电机的组成及基本概念!