When the natural gas generator set is started after a year or two of operation, or after a long time of use, there will be a lack of cylinder operation. If the lack of cylinder operation is found, the work of the natural gas generator set should be stopped immediately, otherwise it will be very harmful to the generator. The causes and hazards of cylinder shortage operation of natural gas generator unit are as follows:
1、 Analysis on the causes of cylinder shortage operation of natural gas generator set
During the actual operation of natural gas generator units, individual cylinders often fail to work (lack of cylinder work), and the main influencing factors leading to individual cylinders fail to work are:
1. When starting in winter, plus not working for a long time, after the cold start, some generator cylinders do not work because of idling during the first start. After a while, the temperature rises, and all cylinders slowly return to normal;
2. Mechanical faults such as piston ring fracture, cylinder pulling or loose valve sealing occurred in the cylinder of some generator sets, which made the compression pressure of the cylinder below the requirements, resulting in the cylinder not working;
3. The fuel injector nozzle is blocked, so the cylinder does not inject fuel, so the cylinder does not work;
4. The failure of the plunger and outlet valve of the fuel injection pump causes the cylinder to supply oil improperly or not, so that the cylinder does not work;
5. Other comprehensive factors lead to a cylinder not working.
2、 Harm of diesel generator set running without cylinder
1. Once the natural gas generator unit runs without cylinders, it will cause unstable operation of the natural gas generator unit, which is prone to large vibration and other problems. In serious cases, it may cause resonance, which will affect the service life of other parts of the machine;
2. The lack of cylinder operation of natural gas generator set is easy to cause the unbalanced stress of the body, and the result is the uneven stress and deformation of the whole body, which is a serious blow to the whole unit.
Once the diesel generator set runs in case of cylinder shortage, stop working immediately and wait for professionals to check and eliminate it. Do not judge privately, otherwise it will have a great impact on the unit.
Post time: Jul-29-2022