The ambient temperature has an impact on the use of the generator set. Now that the cold season is gradually entering, Haixing Power reminds everyone: prepare antifreeze in advance and add antifreeze in time! Antifreeze is of great significance to the operation of the generator set 1. Antifreeze When the indoor and outdoor temperatures are too low in winter, in order to ensure that the cooling system of the diesel generator is not frozen, generally speaking, the antifreeze temperature of the commonly used generator antifreeze is also That is, the freezing point is between minus 20 degrees and 45 degrees above zero. It is often reasonably selected according to the actual needs of different regions to meet the use requirements of Cummins generators. 2. The anti-boiling diesel generator ensures that it will not boil prematurely under high temperature conditions. The boiling point of commonly used antifreeze is 104 to 108 degrees. When the antifreeze is added to the cooling system and generates pressure, the boiling point will be higher. 3. The special antifreeze for anti-corrosion generator sets can reduce corrosion to the generator cooling system, thereby reducing the risk of rust in the cooling system.

The generator set has a longer period and more regular fast and slow phenomena in the low and medium speed range. This is the result of the speed regulation response lagging too much behind the actual speed change. The main reasons are as follows. The internal lever of the speed regulator is loose due to wear of the connecting pin hole. Copyright by: www.hxdlkj.com In this case, the two-way speed regulation movement of increasing or decreasing the oil supply produces excessive direction change lag. When the engine is working, the speed control response will inevitably lag behind the actual speed change, but the lag cannot be too large, otherwise a large adjustment amplitude will occur. The adjustment amplitude is too large, that is, when the speed has increased or decreased due to the increase or decrease in fuel supply, the fuel will continue to be increased or decreased. Until the speed exceeds the adjustment range of the speed regulator, its strong feedback signal will not pass through the speed governor. To realize the reaction of reverse regulation, the speed regulation reaction exceeds the predetermined range, causing the speed to

Although the temperature has gradually dropped, the abnormal temperature of the generator set still needs to be paid attention to. As one of the questions frequently asked by customers, how does the abnormal high temperature failure of the generator set occur? Let’s take a look at the cause analysis by Haixing Power technicians. Only by identifying the cause can we take effective countermeasures. The reasons for the high temperature of the generator set are as follows: 1. Long-term overload operation of the diesel engine will increase its fuel consumption and heat load, resulting in excessive water temperature. For this reason, long-term overload work should be avoided. 2. Insufficient coolant If there is a lack of coolant in the diesel engine cooling system, it will affect the heat dissipation effect of the diesel engine and cause the diesel engine to be overheated. In this regard, the coolant stock in the radiator and expansion tank should be checked frequently and replenished in time when the liquid level is low. 3. Poor coolant circulation and insufficient thermostat opening will reduce the

Friends who often operate generator sets know that the piston ring is one of the vulnerable parts of the generator set, and the sound is an obvious sign of failure. So today we will follow Haixing Power to learn: What faults correspond to the abnormal sound of the piston ring part of the generator set? question. Haixing Power selected three representative sound faults: (1) Metal knocking sound of piston rings. After the engine has been operating for a long time, the cylinder wall is worn, but the upper part of the cylinder wall that is not in contact with the piston ring almost maintains the original geometric shape and size, which creates a step on the cylinder wall. If an old cylinder gasket is used or a new one is too thin, the working piston ring will collide with the cylinder wall step, making a dull 'puff' metal impact sound. If the engine speed increases, the abnormal noise will also increase. In addition, if the piston ring is broken or the gap between the piston ring and the ring groove is too large, it will also cause a loud knocking sound.

The temperature suddenly dropped a lot. Are you not used to it? While we are dressing ourselves to protect ourselves from cold and heat, we should also not forget to pay attention to the influence of ambient temperature when using the generator set. Haixing Power reminds everyone to pay attention to seven taboos when using generator sets. One avoidance is to release water too early or not to release cooling water. Run at idle speed before turning off the engine. Wait until the cooling water temperature drops below 60°C and the water is not hot to your hands. Then turn off the engine and drain the water. If the cooling water is released prematurely, the body will suddenly shrink and crack when it is suddenly attacked by cold air when the temperature is high. When draining water, the remaining water in the body should be drained out to prevent it from freezing and expanding, causing the body to burst. Second, avoid using fuel randomly. The low temperature in winter makes the fluidity of diesel oil deteriorate, the viscosity increases, and it is difficult to spray, resulting in poor atomization and worsening combustion, resulting in a decrease in the power and economic performance of the generator set. Therefore, light diesel oil with low freezing point and good ignition performance should be used in winter. Generally require diesel

I believe that many users of diesel generator sets have such doubts. I have done every maintenance and repair. Why does the equipment still fail frequently or its lifespan is not long? According to the summary of Haixing Power’s interactions with customers over the years, this is actually largely related to everyone falling into misunderstandings about maintenance and neglecting some small details. To sum up, we only did XXX and ignored XXX. Let's take a look at some easily overlooked points in maintenance: 1. Only replace the plunger and oil nozzle, ignoring the technical status of the oil delivery valve. After the oil delivery valve is worn, the residual pressure in the high-pressure oil pipe will be too high, causing the fuel injector to cut off the oil and drip oil, causing the diesel engine to smoke from the exhaust, knock the cylinder, and run unstable. The method is to check the oil outlet valve and use a pressure gauge with a range of 0-600 kg/cm². When the gauge needle drops from 200 kg to 180 kg/cm², the pressure holding time should be greater than 15 seconds, otherwise it should be replaced.

Will the diesel generator be damaged if it is left idle for a long time? This statement has puzzled many users. Haixing Power will tell you in detail why the diesel generator set 'stops'. copyright by:www.hxdlkj.com The filtration capacity of the filter decreases. The filter plays a role in filtering diesel, engine oil or water to prevent impurities from entering the body. Oil dirt and impurities are also inevitable in diesel, so during the operation of the unit, the filter Played an important role, but at the same time these oil or impurities The impurities will be deposited on the filter wall, which will reduce the filtration capacity of the filter. If there is too much deposition, the oil circuit will not be smooth. In this way, when the oil machine is running under load, it will go into shock due to the inability to supply oil (like a person lacking oxygen), so During the normal use of the generator set, it is recommended that: first, every 500 Replace three filters every hour

In the construction of the engine room of diesel generator sets, how to reduce noise is a concern of many users. In many engine room design links, Haixing Power believes that good ventilation design is the key. If the ventilation is good, the noise will naturally be small! Since the diesel generator set requires a large amount of fresh air during operation, the machine room exhaust and exhaust duct must be designed to meet the requirements. A large amount of noise is also spread out of the machine room from the air inlet duct and exhaust duct. Properly designed air inlet and exhaust ducts are an important part of reducing noise. Generally speaking, the air inlet and exhaust ducts of diesel generator sets use folded brick air ducts, with a specially made air inlet muffler and exhaust muffler, and the inner cavity All are equipped with sound-absorbing materials and perforated sound-absorbing panels. In order to ensure that the unit can operate normally and at rated power for a long time, sufficient exhaust area must be reserved for the air inlet and outlet of the unit according to the unit's usage requirements. A low-noise axial flow fan must be installed on the exhaust duct of the unit to ensure that the machine room has Adequate ventilation through the above

The fuel tank is the fuel storage container of the generator set. It is made of stamped and welded steel plates. Its inner surface is usually treated with anti-rust treatment, and the interior is generally divided into more spaces with partitions. The part above the fuel tank is the filler port, and below it is the filter. In order to avoid a vacuum inside the fuel tank during use, a vent hole is usually drilled in the upper part of the fuel tank cap. There is a drain port at the bottom of the fuel tank. According to Haixing Power’s summary, the fuel tank is also a vulnerable part of the generator set. So what are the common problems and how to deal with them efficiently? Let’s take a look. The parts of the fuel tank that are easily damaged during long-term use are the welding points of the oil outlet pipe inside the tank and the welding points on the outside. When there are weak welds or blisters in the internal welding parts, the diesel engine will become unstable or shut down during operation. In addition, if there are too many impurities at the bottom of the fuel tank, the above phenomenon will also occur. Damaged fuel tank

For generator sets, different levels of maintenance and repair work are required at different stages of use. Generally speaking, according to the use time, minor repairs are required between 3,000 and 4,000 hours; intermediate repairs are required between 6,000 and 8,000 hours; and major repairs are required between 9,000 and 15,000 hours. . Let’s follow Haixing Power to take a look at the specific contents and requirements of different maintenance. Requirements for major, medium and minor repairs of diesel generator sets: (Time: 3000 - 4000 hours) Check the valves of diesel generators, diesel generator sets,