柴油機的磨合、使用、與功率如何進(jìn)行匹配?
(1)、一般當新的或經(jīng)大修后的柴油發(fā)電機,在正式使用前須經(jīng)60h磨合運轉,方可投入全負荷使用。以改善柴油機各運動(dòng)部件的工作狀況,提高柴油機的運行可靠性和使用壽命。
(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)、磨合應視柴油機用途和拖載方式的不同,來(lái)考慮具體磨合方案。原則上隨著(zhù)磨合時(shí)間的增加分階段逐步提高柴油機的轉速和負載,在整個(gè)磨合期內負荷以12h標定功率的50~80%為宜,轉速應不大于標定轉速的80%為好。但在磨合的開(kāi)始階段空運轉或過(guò)小負載情況下的運轉時(shí)間不宜太長(cháng)。
(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:每當更換缸套、活塞、活塞環(huán)、連桿軸瓦和曲拐后亦應按上述磨合工況適當進(jìn)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.
柴油機的使用:
Use of diesel engines:
(1)、柴油發(fā)電機組投入正常使用后,應經(jīng)常注視所有儀表的指標值和觀(guān)察整機運行的動(dòng)態(tài):要經(jīng)常檢查冷卻系統和各部分潤滑油的液面,如發(fā)現有不符規定要求或出現損漏時(shí),應即給予補充或檢查原因予以排除。
(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)、在運轉過(guò)程中,特別是當突減負荷時(shí),應注意防止因調速器失靈使柴油機運轉突然升高超過(guò)規定值,當出現此類(lèi)情況應先迅速采取緊急停車(chē)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.
柴油機與工作機械功率的匹配:
Matching of diesel engine and working machinery power:
用戶(hù)選用柴油機時(shí)不僅應考慮與之配套的工作機械所需功率的大小,還須考慮工作機械的負荷率,比如是間歇使用,還是連續使用。同時(shí)要考慮工作機械的運行經(jīng)濟性,即負載的工作合理性和柴油機的特性的必須合理匹配。
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,柴油機功率的正確標定和柴油機與工作機械特性的合理匹配乃是保證柴油機可靠、長(cháng)壽命以及經(jīng)濟運行的前提,否則將可能使柴油機超負荷運行和產(chǎn)生不必要的故障;或負載功率過(guò)小,柴油機功率不能得到充分的運用,這樣既不經(jīng)濟并且易產(chǎn)生機油等弊病。
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.