What are the factors that affect the service life of Shangchai diesel generators?

First of all, we must pay attention to the operation method when using the diesel generator to generate electricity, and it is necessary to do a good job of safety measures, which requires every worker to understand their responsibilities, and must wear good work clothes and insulation measures when carrying out the machine room, only in this way can we do a good job of safety measures at the greatest level.

At the same time, the first thing to do after the machine room is not to turn on, but to check whether there are any potential safety hazards, if the isolation tower has the problem of falling off the insulating skin, check whether the switch can be used normally, if the method can not be used normally, we must find out the key factors that affect its performance, it can be said that only in this way can we maximize the performance of the diesel generator.

In addition, we know that there is a very important place for the generator, that is, the use of the generator itself, if the daily operation method is improper, then it will definitely affect its service life, so here is a reminder that all enterprises must let professional personnel operate, and if there is any sudden problem in the process of operation of the equipment, then it is best to find a professional repairer to come to repair, do not repair it alone, You must know that if any part is not done well, it will greatly affect the performance of the diesel generator, so it must be paid attention to when using it in daily life.

1. The service life of general diesel generators is more than 20 years. But it depends on the maintenance. Regularly maintain and maintain the machine Jianmengkai group, and if the unit is operated correctly, the life of the unit will be longer.

2. If the unit is not maintained, and the method of operating and using the unit is incorrect, the service life of the unit will be shortened.

3. Therefore, it is very important for users to maintain the unit correctly when using the diesel generator, which will prolong the service life of the machine car.

1. The service life of general diesel generators is more than 20 years. But it depends on the maintenance. Regular maintenance and maintenance of the unit, if the unit is operated correctly, the life of the unit will be longer.

2. If the unit is not maintained, and the operation and use of the unit is incorrect, the service life of the unit will be shortened.

3. Therefore, it is very important for users to maintain the unit correctly when using the diesel generator, which will prolong the service life of the unit.

1. Low fuel consumption: the effective thermal efficiency of diesel engine is 20% 46%, high-pressure steam turbine is 20%, gas turbine is 20% 30%, it can be seen that the effective thermal efficiency of diesel engine is relatively high, so its fuel consumption is low;

2. Light weight of equipment: because the equipment of diesel generator set is relatively simple, the auxiliary equipment is less, the weight is light, and its unit power is light. Due to the characteristics of diesel generator set, it is convenient for it to be flexible and convenient to move;

4. Rapid start: the diesel generator set generally only takes a few seconds to start, in the case of emergency, it can be brought to the full load within 1min, and in the normal working state it is only brought to the full load within 5 10min, the shutdown process of the diesel generator set is also very short, even if it is shut down in an emergency state, the shutdown process in the normal state is not more than 3min, and it can be started and stopped frequently.

5. Multiple capacity levels of single generators: the capacity of a single diesel generator set ranges from a few kw to several thousand kw, and the capacity range can be selected according to the use and load, which has the advantage of being suitable for a variety of capacity power loads;

The service life of the diesel generator set will be different due to the different configuration and use, there is no specific number of years, and regular maintenance and maintenance of the generator unit can reduce the failure of the generator unit and prolong the service life of the generator unit.

How much fuel consumption of diesel engine depends on four factors, let's take a detailed look at the introduction of Huaquan power manufacturers:

1.Injector (commonly known as oil nozzle) atomization degree, 100 kilowatt diesel generator set, the better the spray, the finer the nozzle hole, the fuel saving The fuel nozzle is worn and sealed poorly, and the fuel injection is linear, which is obviously more than the oil sprayed out during atomization, and when the diesel enters the engine and does not have time to burn, it will be discharged so as to consume a large amount of fuel.

2.The pressure inside the high-pressure oil pump, the better the sealing, the greater the pressure, the fuel saving. The low pressure of the oil pump and the poor sealing make the effective stroke of the high-pressure oil pump when it is working, and the fuel consumption is large due to insufficient diesel combustion 3

The air pressure pushed into the high-pressure oil pump during exhaust gas recirculation is too low, and the oil pump cannot reach the required oil volume of the engine when the throttle is increased, resulting in insufficient engine power, and the fuel consumption is large if the power is not enough (Note: this article is limited to the supercharged engine).

4.If the engine cylinder pressure is low, the valve seal is poor and the air leakage, the fuel consumption is large; The water temperature in the diesel engine is too high, which makes the engine compression ratio lower, and part of the diesel is discharged through high temperature, resulting in high fuel consumption.

1. The normal wear and tear caused by long-term use of the engine, or the abnormal wear and tear caused by improper maintenance, will cause the cylinder liner of the diesel engine to form longitudinal pull marks, and the cylinder bore and piston side clearance will exceed the specified value, so that the supporting force of the piston ring will be reduced accordingly, and the oil scraping will be unclean.

Or because the inner support twisting spring in the oil ring is disconnected at the opening position of the oil ring, resulting in the oil scraping is not clean and participates in combustion, resulting in serious oil consumption symptoms, which is manifested as the difficulty of starting the diesel engine, the exhaust pipe has obvious blue smoke coming out, and the respirator is seriously injected.

In addition, the piston should be upward, but the combustion chamber is inverted due to the direction inversion during assembly, although it will not affect the starting of the diesel engine.

2. When it is found that the oil consumption is excessive, you should first check whether there is oil leakage at the connection between the body and the gear chamber cover, the first side of the wheel, the back cover, the cover, etc. Attention should be paid to whether the gasket of each connection part is complete, and the damaged gasket should be replaced. If the gasket is complete, check whether the connecting screws in each part are loose.

For loose bolts, use a wrench to reach the specified torque. If the above parts are basically normal, and the oil leakage is in the frame position, the oil shell should be inspected, the main inspection part is at the front end of the oil shell side on the same side as the traveling wheel, mostly due to the loosening of the base screws, the traveling wheel and the frame angle iron protecting the oil shell under the pull of the V-belt for a long time, the oil shell is worn through to form a gap and produce oil leakage.

3. Serious wear of the valve guide will also affect the oil consumption of the diesel generator set. How to better make the machine more fuel-efficient and energy-saving?

1) Maintain the best oil supply angle: the oil supply angle is offset, which will cause the oil supply time to be too late and the fuel consumption will increase greatly.

2) Ensure that the machine does not leak oil: the treatment method is to coat the gasket with valve paint and put it on the glass plate to grind it flat, and the oil pipe joint is straightened.

Add a diesel ** device, and the oil return pipe on the oil nozzle can be connected with the hollow core screw with a plastic pipe, so that the oil return flows into the fuel tank.

3) Increase the temperature of the cooling water of the diesel engine: The increase of the water temperature can make the diesel fuel more complete, the viscosity of the oil will be small, the movement resistance can be reduced, and the fuel saving effect can be achieved.

4) Appropriately increase the diesel engine pulley, increase the speed of the water pump under the condition of diesel engine speed reduction, increase the flow rate and head, and achieve the purpose of energy saving.

5) Purification of oil before use: More than half of the failures of diesel generator sets come from the oil supply system. The method of treatment is to put the purchased diesel fuel aside for 2-4 days before use, which can precipitate 98% of impurities, if you buy it now, you can put two layers of silk cloth or toilet paper at the fuel tank refueling filter.

6) Adjust the injection pressure of the injector.

1. The installation site should be well ventilated, the generator end should have enough air inlet, and the diesel unit end should have a good air outlet. The area of the air outlet should be more than twice the area of the water tank; The air inlet is not smooth or does not meet the requirements, and less air enters the cylinder, which will cause insufficient fuel in the cylinder, produce carbon deposits, and affect the load capacity of the diesel generator set; In the same way, the exhaust pipe does not meet the requirements, and the oxygen content of the air in the machine room is reduced, which will also cause insufficient fuel in the cylinder, produce carbon deposits, and affect the load capacity of the diesel generator set.

2. The surroundings of the installation site should be kept clean, and items that can produce acidic, alkaline and other corrosive gases and vapors should be avoided nearby. If conditions permit, fire extinguishing devices should be configured.

3. For indoor use, the smoke exhaust pipe must be channeled outdoors, the pipe diameter must be the diameter of the smoke outlet pipe of the silencer, and the elbow of the connected pipeline should not exceed 3 to ensure the smooth flow of smoke exhaust, and the pipe should be tilted down 5-10 degrees to avoid rainwater injection; If the exhaust pipe is installed vertically upward, a rain cover must be installed. In order to improve the output power of the diesel generator set, in the case of a certain cylinder capacity and quantity, only by forcing more air into the cylinder to make the fuel in the cylinder fully combusted, in order to improve the average effective pressure of the unit, the current 150kw generator all use turbocharger, which is more strict on the exhaust requirements of the diesel generator set, once the exhaust is not smooth or the exhaust gas speed does not meet the requirements, the air entering the cylinder is reduced, and the load capacity of the diesel generator set will be reduced.

4. When the foundation is made of concrete, the levelness must be measured with a level ruler during installation, so that the unit is fixed on the basis of the level. There should be a special anti-vibration pad or foot bolts between the unit and the foundation.

5. The shell of the unit must have reliable protective grounding, and for the generator that needs to have a neutral point direct grounding, it must be neutrally grounded by professionals, and equipped with lightning protection devices, and it is strictly forbidden to use the grounding device of the mains power to carry out direct grounding at the neutral point.

The two-way switch between the KW generator and the mains must be very reliable to prevent reverse power transmission. The wiring reliability of the bidirectional switch needs to be verified by the local power supply department.

7. The wiring of the starting battery must be firm.

When using the generator, we must pay attention to safety and pay attention to the use of the generator, which can not only ensure the safety of employees but also prolong the service life of the generator.