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  • Dec
    28
    Common knowledge on battery use and maintenance of diesel generator sets
    As we all know, the good overall performance of a diesel generator set cannot be separated from the effective cooperation of each component. Therefore, the daily safe use and maintenance of zero parts of the equipment is very important. Today, Haixing Generator is here to introduce to you the common sense of battery use and maintenance of diesel generator sets to ensure the normal operation of the equipment. Daily use of diesel generator battery: 1. When the battery of diesel generator has not been used for a long time, it must be properly charged before use to ensure the normal capacity of the battery. Because normal operation and charging will cause some water in the battery to evaporate, this requires us to often add an appropriate amount of distilled water or purified water to the battery, but do not overfill it (based on the battery plate scale), otherwise, When the battery is discharged or charged, the electrolyte inside the diesel engine will gush out from the overflow hole of the filling port, causing corrosion and damage to surrounding objects and the environment.
  • Nov
    02
    Haixing analyzes the causes of abnormal valve noise in diesel generator sets
    After the diesel generator set has been running for a period of time, abnormal valve noise will sometimes occur. At this time, you do not need to panic. Instead, you should stop the machine immediately for inspection, find out the source of the abnormal valve noise, and solve it in time to ensure the normal production of the enterprise. Below, Haixing makes a simple analysis of the causes of abnormal valve noise in diesel generator sets for reference. 1. Valve leakage noise The valve leakage noise occurs outside the valve chamber. It is more obvious at high load and low speed. The noise increases as the load increases. The main reason is that when reaming the valve seat, due to improper operation or excessive wear of the inner hole of the valve guide, the valve seat is skewed or the valve clearance is small, resulting in valve ablation, causing the valve to not close tightly and causing air leakage. Treatment method: Remove the cylinder head, grind the valve, check the elasticity of the valve spring, and readjust the valve clearance. 2. The valve knocking sound occurs when the engine is running at idle speed and occurs between the tail end of the valve stem and its driving part.
  • Oct
    19
    Reasons and solutions for stuck fuel injector of diesel generator set
    After a diesel generator set has been used for a period of time, the fuel injector may become stuck due to improper operation or maintenance. So, what are the reasons that cause the injector of a diesel generator set to get stuck, and how to solve the problem if it encounters it? Haixing is here to give you a brief introduction. 1. Reasons why the fuel injector of the diesel generator set is stuck 1. The diesel is not clean, and there are impurities in the high-pressure oil pipe. The excessive force wears the needle valve coupling of the injector, causing the needle valve coupling to not close tightly and causing high pressure in the combustion chamber. Gas backflows and burns out the needle valve assembly. In addition, the dirt on the injector pressure regulating spring, tappet and other parts is moved to the upper part of the injector needle valve through the injector tappet, or the cotton rope and lead wire used to prevent oil leakage on the oil line enter the injector through the high-pressure oil pipe. oiler, the needle valve assembly will become stuck. 2. The outlet valve is worn, causing oil dripping when the injector stops injecting fuel, causing the injector nozzle to burn coke and accumulate carbon, causing it to become stuck and other malfunctions.
  • Oct
    09
    Cummins diesel generator set operating procedures
    After purchasing a Cummins diesel generator set, customers should pay attention to safe use and strictly abide by operating procedures to ensure the normal operation of the diesel generator set. So, what are the specific operating procedures for Cummins diesel generator sets? Haixing is here to introduce it to you. Preparations before starting the engine 1. Check whether the oil level in the crankcase of the diesel engine is normal, and check whether the cooling water tank is cooled (enough cooling water and oil should be added). 2. Open the diesel valve to clear the fuel pipeline. 3. Manually turn the machine to check whether the moving parts are stuck. 4. Whether the starting motor current meets the starting requirements. 5. Check whether the water pump, oil pump and fan conveyor belt are normal. 6. Start the diesel generator after confirming the above inspections. 2. Starting 1. Turn on the starting power switch and start. 2. Diesel generator starting
  • Sep
    11
    Fuel consumption calculation of diesel generator set
    If you want to know the approximate operating costs before purchasing a diesel generator set, then it is necessary to calculate the fuel consumption. Many people do not know much about the fuel consumption and calculation of generator sets. Haixing Power will give you a detailed explanation below. Answer Generally speaking, the fuel consumption of diesel generators is related to the following two factors: 1. Fuel consumption rate. Diesel generator sets of different brands have different fuel consumption rates and different fuel consumption; 2. The size of the electrical load. If the load is large, the fuel consumption will be greater if the throttle is opened. On the contrary, if the load is small, the fuel consumption will be smaller. In order to facilitate everyone to understand the approximate fuel consumption of the generator set and calculate the usage cost of the generator set; this gives some rough reference values ​​(30kw-500kw). Fuel consumption of 30kw diesel generator set = 6.3 kilograms (kg) = 7.8 liters (L) Fuel consumption of 45kw diesel generator set = 9
  • Sep
    05
    Normal shutdown and emergency shutdown of diesel generator set
    How to perform the shutdown operation after the generator set is running? Is it enough to just cut off the power supply? In the following, Haixing will explain in detail the three operation processes of diesel generator set operation, normal shutdown, and emergency shutdown, so that everyone can learn from it. After the operating unit enters full speed operation and the generator voltage and frequency are normal and stable, the operator can close the generator air switch. When the unit is in operation, the operator should also frequently observe and understand whether the unit is operating normally, whether the instrument indication on the control panel is in the correct position, whether there is a pre-alarm indication on the control panel, the fuel level in the fuel tank and other operating parameters, and regularly check the operating parameters of the unit. Record. Normal shutdown Before normal shutdown of the unit, first separate the load, and then run the unit without load for a certain period of time to allow the unit to be fully cooled before shutting down. For some units equipped with a shutdown valve, if you want to turn off the key switch on the control panel, use the operation to stop the unit.
  • Aug
    29
    Analysis of oil dripping phenomenon in diesel generator sets
    Many friends have discovered that there may be slight leakage inside the engine of the diesel generator set, which is the so-called oil dripping. What is the cause of the oil dripping phenomenon? What are the detailed fault locations? Haixing will give detailed answers to friends below. If the generator set is running under a small load, as the running time continues, the following faults will occur: 1. The piston-cylinder liner is not well sealed, the oil will flow up, enter the combustion chamber for combustion, and the exhaust will emit blue smoke. 2. For supercharged diesel engines, due to low load and no load, the boost pressure is low. It is easy to cause the sealing effect of the supercharger oil seal (non-contact type) to decrease, and the oil will escape into the supercharging chamber and enter the cylinder along with the intake air. 3. Part of the engine oil that flows up to the cylinder participates in combustion, part of the engine oil cannot be burned, and forms carbon deposits on the valves, intake passages, piston tops, piston rings, etc., and the remaining part is discharged with the exhaust. In this way, the cylinder liner exhaust passage will gradually
  • Aug
    01
    Key points to note when using diesel generators safely
    Special attention should be paid to the safety of diesel generators when using them. Because it is different from other types of generator sets, Jiangsu Haixing would like to emphasize the precautions for safe use of diesel generators. New or long-term unused generators must undergo strict inspection before being put into normal operation, mainly checking the winding insulation condition, wiring condition, etc. If there are any discrepancies, they will be dealt with. After the diesel engine is started, slowly increase the speed. After checking and confirming that everything is in good condition, it can run at no-load from low speed to rated speed. When running without load, focus on checking the engine oil pressure, whether there is any abnormal noise, excitation current, three-phase voltage changes, etc. If there is any abnormality - stop the machine immediately for inspection. After finding out the situation, start again. If everything is normal, it can be put into normal operation. The operator should closely monitor the changes in the instruments on the control panel to see if they are within the permitted range and make corresponding adjustments. During operation, the operator should keep close contact with the live equipment
  • Jul
    16
    The launch of new mobile generator sets is another advancement in technology
    Summer is the peak period for electricity consumption in my country, and many areas have begun to implement power rationing measures. With the implementation of this measure, people's requirements for generating units are getting higher and higher. The original heavy, fuel-consuming, noisy, and polluting generator sets are far from meeting the needs of society. According to news reports, on July 11, Cummins launched a new mobile generator set that meets the U.S. Environmental Protection Agency (EPA) off-highway Tier 4i emission level standards, and the rated capacity of the launched units is 150 kilowatt and 200 kilowatt, available for rental and other mobile applications. The units are expected to be delivered on August 6, 2012. In addition to the above advantages, the new unit also has the following important features: an enclosure that attenuates operating sound for quiet operation and a standard cam locking switchboard for easy and fast cable removal
  • May
    05
    Haixing generator sets help you reduce oil loss
    According to netizens, some diesel generator sets will consume oil too quickly during use. As international oil prices continue to rise, the price of engine oil has also increased. Diesel generator sets consume too much engine oil, which will undoubtedly increase the user's economic expenses. Haixing Generator Set believes that when most users face the situation of excessive oil consumption of diesel generator sets, they will have the idea of ​​​​inspecting and repairing the generator set to restore the oil consumption rate to normal. However, due to the lack of knowledge in this area, we often do not know which component to start with. Haixing will analyze several situations for you below: 1. When excessive oil consumption is found, you should first check whether there is oil leakage at the joints between the body and the gear chamber cover, the large plate on the side of the running wheel, the rear cover, the cover, etc. In case of oil leakage, pay attention to whether the sealing gaskets at each connection part are complete, and inspect the damaged sealing gaskets.
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More than 20 years of experience in gas power generation engineering application. It has the ability to provide integrated operation services of technology, equipment, engineering design, construction, operation and services.

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