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  • May
    05
    Haixing generator set helps you reduce oil loss
    According to netizens, some diesel generator sets will consume too fast during use. With the continuous rise of international oil prices, the price of engine oil has also risen. The rapid consumption of engine oil for diesel generator sets will undoubtedly increase users' economic expenses. Haixing Generator Group believes that most users will have the idea of ​​inspecting and repairing the generator set to restore the oil consumption speed to normal when facing the situation of excessively fast oil consumption of diesel generator sets. However, due to the lack of knowledge in this area, we often don’t know which component to start with to deal with it. Next, Haixing will analyze several situations for you: 1. When it is found that the engine oil is consumed too much, you should first check whether there is oil leakage at the connection between the body and the gear chamber cover, the large plate, the back cover, the cover on the side of the wheel. If oil leaks, you should pay attention to whether the gaskets at each connection are intact. The damaged gaskets should be inserted into the
  • Apr
    05
    How to distinguish the quality of diesel generator sets?
    What Haixing Power wants to discuss with you is how to distinguish the quality of diesel generator sets. According to the summary of Haixing staff, we can mainly distinguish between main power and backup power from the following aspects. The power labels of domestic and foreign countries are different. Many bad manufacturers will use this to fool customers, and everyone needs to pay attention. In China, the main power is generally used to identify diesel generator sets, while in the international field, backup power, also known as maximum power, is used to identify diesel generator sets. In China, the diesel generator set is nominal by main power, that is, continuous power. The maximum power that the generator set can continuously use within 24 hours is called continuous power, and one hour within 12 hours can be overloaded by 10% on the basis of continuous power. At this time, the unit power is the maximum power, that is, backup power. Give an example: If the main work
  • Mar
    31
    Why do generator sets need to change the oil regularly?
    The oil of the generator set plays a lubricating role, prevents depreciation and damage caused by friction between parts during use, and increases maintenance costs. Therefore, we need to replenish the oil in time after consumption. Many people’s question is how often is it appropriate to change the oil? Generally, the new engine will be 50 hours after the first operation and 50 hours after the intermediate or major repair. The oil replacement cycle is generally carried out simultaneously with the oil filter (filter element). The oil replacement cycle is generally 250 hours or one month. Use Class 2 engine oil, the engine oil can be replaced only once after working for 400 hours, but the oil filter (filter element) must be replaced. If you want to determine the replacement time of the diesel generator set, there are the following methods of determining: 1. Use two glass test tubes with a diameter of 0.5 cm and a length of 20 cm, and fill them with 19 cm of new engine oil and used engine oil respectively. After sealing, the two tubes are inverted at the same time to record the bubbles.
  • Mar
    16
    How should the cooling water of the generator set be selected?
    During the operation of the generator set, the parts will heat up due to friction between parts. At this time, we need to use cooling water, and cooling water cannot be used with any water quality. Here Haixing will introduce to you how to choose cooling. The cooling water used to directly cool the diesel engine should be clean fresh water, such as rainwater, snowwater, tap water with good quality or clear river water. If well water or other groundwater is used directly, because they contain more minerals, it is easy to form scale in the water cavity of the diesel engine, affecting the cooling effect and causing failure. If only hard water is limited by conditions, it must be softened before it can be used. There are two commonly used methods of softening cooling water: ① Boiling the water to precipitate. ② Add o to each liter of water. 67s caustic soda (caustic soda), stir and precipitate with clean water from the upper layer. We especially remind you: seawater is never allowed to directly cool diesel engines.
  • Mar
    09
    How should the temperature of a diesel generator set be controlled?
    There are clear regulations on the water temperature of diesel generator sets, but many people do not follow the regulations in actual operation, resulting in too high or too low water temperature, which will have a great adverse impact on the life of the unit. Generally speaking, as long as the water temperature does not exceed 95℃, there will be no cavitation, and the cooling water (liquid) will not be interrupted. On the contrary, if the water temperature is too low, it will be extremely harmful to the operation of the diesel engine. First, the temperature is low, the combustion conditions of diesel in the cylinder deteriorate, the fuel atomization is poor, the combustion period after ignition increases, the engine work is prone to roughness, aggravation of damage to crankshaft bearings, piston rings and other components, reducing power and economicality. Second, the combustion water vapor is prone to condense on the cylinder wall, causing metal corrosion. Third, the diesel coming to burn may dilute the engine oil, causing the lubrication to become worse. Fourth, the fuel is not completely burned and forms a glue, causing the piston ring to get stuck in the piston ring groove, the valve is stuck, and the pressure in the cylinder is reduced when the compression is finished. Fifth, the water temperature is too low and the engine oil temperature is also low, so the engine oil becomes thicker
  • Mar
    02
    What should I do if the generator set leaks oil?
    Many netizens like Haixing Power consulted about the oil leakage problem of generator sets. This is a common fault during our use. Haixing's technicians have summarized many cases and listed the following reasons. You might as well do a self-check first and check whether the following problems have occurred. First, check whether the engine oil model, oil quantity, and oil quality meet the requirements. The second is whether the bonding surfaces of various parts of the diesel engine are smooth and flat, and whether the processing size meets the requirements. The sand-turning parts and die-casting parts should be free of sand-eye air, and whether all kinds of paper pads, sealing strings, oil seals, and screws meet the requirements and are tightened. Third, whether the lubricity of the diesel engine is smooth and meets the requirements (the oil return hole of the follow-up column of the air-cooled diesel engine is very important. Fourth, the diesel engine without negative pressure must also check whether the breathing is smooth and meets the requirements, and whether the cylinder is serially air into the crankshaft, causing oil leakage. Fifth, the machine temperature cannot be too high, cool, and dissipate.
  • Feb
    24
    What are the reasons for insufficient power of diesel generator sets?
    When we fail during the use of generator sets, we mainly use the measurement of the ammeter or the observation of the control screen. What are the reasons for the insufficient success rate? Haixing has summarized the following points for everyone: Insufficient generator output power is generally a power failure, and the generator part generally does not have this situation. Common generator failure is that there is no voltage, high voltage, bottom voltage, and voltage failure when the load is a certain amount. The following reasons may cause insufficient power of the diesel generator set: 1. Insufficient oil inlet of the diesel engine, 2. The diesel filter element is blocked, 3. The diesel engine valve is not closed tightly, 4. The diesel engine fuel injector nozzle is poorly atomized 5. The diesel engine fuel injection pump is faulty 6. The diesel engine piston ring and cylinder liner are worn.
  • Jan
    06
    Why does oil leakage occur on the bonding surface of the generator set?
    Some friends found that there will be oil leakage on the bonding surface to varying degrees during use of the generator set. Haixing conducted research on this part of the problem and believed that the main reasons are the following points: 1. The quality of the purchased or homemade paper pads does not meet the requirements, such as insufficient thickness, improper storage, wrinkles and deformation, or inadequate cleaning during assembly, and dust and impurities, which are all causes oil leakage. 2. The oil pressure is too high, which can also cause oil leakage on the static joint surface. 3. The quality of the static joint surface itself is mainly determined by the accuracy of the processing equipment itself and storage and transportation conditions. If the equipment is high in accuracy, the flatness and roughness of the static joint surface can meet the design requirements of the drawing, and pay attention to preventing bumps during storage and transportation, so it is not difficult to achieve complete sealing of the static joint surface. However, because the equipment accuracy and process level of some manufacturers are still low, the storage and transportation conditions and management level cannot be completely guaranteed to be free of bumps and scratches. 4. The operation technology is poor during maintenance. Currently, diesel generator sets generally use
  • Dec
    31
    How to solve some 'difficult and complicated problems' of generator sets?
    During the use of generator sets, customers will have many 'whys'. Today, Haixing has prepared some difficult problems about the unit and will explain them in detail below. More difficult problems will be published on Haixing's official website one after another. Your attention is welcome. 1. What are the conditions for the use of two generator sets in parallel? What device is used to complete the parallel work? Answer: The conditions for parallel machine use are that the voltage, frequency and phase of the two machines are the same instantaneously. Commonly known as 'three simultaneous' means that the parallel machine is completed with a dedicated parallel machine device. It is generally recommended to use fully automatic merging cabinets, and try not to manually merging the machine, because the success or failure of manual merging depends on human experience. The reliable success rate of manual merging of diesel generators is equal to 0. 2. What is the power factor of a three-phase generator? Can a power compensator be added to improve power factors? Answer: The power factor is 0.8. No, because charging and discharging of the capacitor will cause small power supply fluctuations. and unit vibration
  • Dec
    23
    What problems will occur when the generator set is running at a small load?
    There are many brands of generator sets on the market. Whether for naturally aspirated or supercharged unit users, manufacturers emphasize that low-load/no-load running time should be minimized as much as possible, and stipulate that the minimum load should not be less than 25%-30% of the unit's rated power. Next, Haixing will tell you the principle.
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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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