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识别发电机组新旧有什么方法?

来源:https://www.huannengpower.cn/ 文章作者:济柴环能 发布时间:2021-11-22
不少用户朋友在发电机组采购过程中十分担心上当受骗,怕遇到旧设备翻新冒充新设备的情况。根据海兴动力一些技术人员和老机手的经验,鉴别旧柴油机的新旧程度,可采取一问、二看、三试,以试为主的方法进行。
Many user friends are very worried about being cheated in the procurement process of generator sets. They are most afraid of the situation that old equipment is renovated and pretended to be new equipment. According to the experience of some technicians and old engine operators of Haixing power, the old and new degree of the old diesel engine can be identified by the method of one question, two look and three test, focusing on test.
一问:就是询问柴油机的购置时间、用途及出售原因,修理情况和更换过哪些主要零部件,使用中有些什么问题等,以对该机有个比较全面的解。
First question: it is to ask about the purchase time, purpose and sales reasons of the diesel engine, the repair situation, which main parts have been replaced, and what problems exist in use, so as to have a more comprehensive understanding of the engine.
二看:就是看该机型是否属淘汰机型,再从外表看柴油机的新旧程度,后检查零部件是否齐全,有无损坏。
Second look: first look at whether the model is an obsolete model, then look at the old and new degree of the diesel engine from the appearance, and finally check whether the parts are complete and damaged.
三试:就是试机,柴油发电机组的具体方法是
Third test: test the engine. The specific method of diesel generator set is
发电机组
1.摇转曲轴,使喷油泵供油,如喷油嘴发出清脆的喷油声,说明柱塞副和喷油嘴性能尚好;如齿轮室内无异常声响,说明齿轮的磨损不严重。
1. Rotate the crankshaft to make the fuel injection pump supply oil. If the fuel injection nozzle emits a crisp fuel injection sound, it indicates that the plunger pair and fuel injection nozzle have good performance; If there is no abnormal sound in the gear chamber, the wear of the gear is not serious.
2.上下晃动飞轮,如无响声、无明显晃动,说明曲轴主轴颈与轴瓦的间隙不大;转动飞轮,如无嗒嗒声,说明曲轴连杆轴颈与连杆瓦之间的磨损不严重。
2. Shake the flywheel up and down. If there is no sound or obvious shaking, it indicates that the clearance between crankshaft main journal and bearing bush is not large; Rotate the flywheel, if there is no click, it indicates that the wear between the crankshaft connecting rod journal and connecting rod pad is not serious.
3.使气缸减压,摇转曲轴,当拆除减压时,如活塞的反弹力大,飞轮迅速回转,说明气缸套、活塞、活塞环的磨损水平小。这时机油压力表读数应不低于1或机油压力指示红色浮标能很快升起,手压浮标应费力。
3. Depressurize the cylinder and rotate the crankshaft. When removing the depressurization, if the rebound force of the piston is large and the flywheel rotates rapidly, it indicates that the wear level of cylinder liner, piston and piston ring is small. At this time, the reading of the oil pressure gauge shall not be lower than 1 or the red buoy indicating the oil pressure can rise quickly, and the manual pressure buoy shall be laborious.
4.起动柴油机比较容易,排气无色或浅灰色,转速稳定,无杂音,则说明柴油机技术状态良好。
4. If the diesel engine is easy to start, the exhaust is colorless or light gray, the speed is stable and there is no noise, it indicates that the diesel engine is in good technical condition.

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