The use of diesel generator sets run-in with the plateau region

Instructions for use of the run-in with the plateau region of the diesel generator set Detailed 

   1. Diesel engine running New or overhauled diesel engine, before use, subject to 60h run-in operation, can be put into the use of full load. In order to improve the working condition of the diesel engine warranty moving parts, improve operational reliability and service life of the diesel engine. Run-in should be depending on the the diesel uses and trailer containing different, to consider the specific run-in program. Principle as the run-time increase the stage gradually increase the engine speed and load, the load in the entire run-in period 12h rated power of 50% to 80% is appropriate speed should not exceed 80% of the rated speed as well. But in the run-in the beginning stages of idling or running time should not be too long in the case of small load.Whenever you replace the cylinder liners, pistons, piston rings, connecting rod bearings and Qu Shui stated above run-in condition appropriate for short-term run-in. 

  2. Normal use of the diesel  Diesel generator sets put into normal use, you should always watch the dynamic of all the indicated value of the instrument and observe the operation of the machine; should always check the liquid level of the cooling system and some oil, if found inconsistent with the requirements or leaking, to supplement or check the reason shall be excluded.During operation, especially when sudden load shedding, should pay attention to prevent the sudden increase the engine speed exceeds the specified value (commonly known as Speed) due to the failure of the governor, one when such a situation should quickly take emergency measures, and then check clear reasons.

   3. Match of the mechanical power of the diesel engine work User selection of the diesel engine should be considered not only the ancillary working machine the size of the desired power, the load rate of the working machine must also be considered, such as intermittent use, or continuous use. Taking into account the economy of operation of the working machine, i.e. the load characteristics and the characteristics of diesel engine must be reasonably assigned. Reasonable match of the correct calibration and diesel engine and mechanical characteristics of the diesel power is to ensure reliable diesel engines, long life, and economic operation of the premise, or may be the engine overload operation and unnecessary failure; too small or load power diesel engine power can not be fully used, so that is not economical and produce channeling oil and other ills. 

   4. The use of diesel engines in the plateau regionDiesel engines use plain areas in the plateau region, to bring about some changes to the diesel engines in terms of performance and use, the following points for user reference to the use of diesel engines in the plateau region. 

    1) due to the plateau pressure is low, the air is thin, oxygenated component, especially for the naturally aspirated diesel engine into the air and combustion conditions deteriorate, the engine can not be issued to the rated power of the original provisions. Even if the diesel engine is the basic structure is the same, but all types of diesel engines rated power, so they are in the ability of the plateau is not the same. 6135Q-1-type diesel engine, rated power is 161.8kW/2200r/min, rated power, very small margin performance in the use of the plateau is increased by 1000m power was reduced by approximately 12 percent, so the plateau long-term use should be based on local Altitude, appropriate to reduce the amount of oil. -6135K-11 diesel engine, although the combustion process the same, but the rated power is only 117.7kW/2200r/min an adequate margin performance, so that the diesel engine itself plateau ability to work.Consider the tendency to plateau under the conditions of the ignition delay generally recommended, in order to improve running economy of the diesel engine, naturally aspirated diesel engine fuel supply advance angle should be appropriately advance.Elevated altitude, power decreased, exhaust temperature rises, the users in the selection of the diesel engine should to consider diesel plateau ability to work, and strictly avoid overload operation. Proved in recent years, the diesel engine used in the plateau region, the method can be used exhaust gas turbocharger as the plateau of power compensation. By exhaust gas turbocharger is not only to make up for the lack of power of the plateau, and also to improve the the smoked restore power performance and reduce fuel consumption rate. 

    2) As the altitude increases, the ambient temperature is lower than the plain areas to general per 1000m, a decrease of approximately 0.6 ℃ ambient temperature plus plateau of thin air, diesel engine starting performance than the plain areas poor. Users use the auxiliary starter measures should be taken to start with the low temperature.

     3) Because the ASL elevated, the boiling point of water is reduced, while the air pressure of the cooling air and the cooling air mass is reduced, as well as within a unit time per kilowatt heat increases, so the cooling conditions of the cooling system than plain differential. Generally should not be used in high-altitude areas open cooling cycle, the closed cooling system can be pressurized to increase the boiling point of the coolant in the plateau used.

PREV article：Diesel Generator Set Model meaning

NEXT article：Correct use of diesel engines in winter