With the wide application of diesel generators in real life, safety accidents often occur, and it is no longer uncommon for diesel generators to be burned. In order to ensure that the overall normal operation of the production enterprise is not affected, Haixing has summarized the following methods to prevent diesel generators from being burned. 1. Keep the diesel generator set clean and hygienic. During the operation of the diesel generator set, if dust, water stains and other debris enter the interior, it will form a short-circuit medium, damage the insulation layer of the wire, cause an inter-turn short circuit, and the temperature will rise and burn the diesel oil. Generator set. Therefore, dust, water stains and other debris should be prevented from entering the interior of the diesel generator set. At the same time, the exterior of the diesel generator set should be cleaned frequently to ensure that the heat dissipation of the diesel generator set is in good condition. 2. Regularly check the diesel engine and diesel generator set during operation, especially for high-power diesel generator sets.

As we all know, the fuel injector is one of the three pairs of delicate parts of the diesel engine fuel supply system. After a diesel generator set has been used for a period of time, the fuel injector will often become stuck due to improper operation or insufficient maintenance. What is the reason why the diesel engine injector is easy to get stuck, and what methods can be used to solve this problem? Haixing Dynamics would like to give you a brief introduction. 1. Analysis of the causes of stuck fuel injector of diesel generator set 1. The diesel is not clean, there are impurities in the high-pressure oil pipe, and the needle valve coupling of the injector is worn, causing the needle valve coupling to be laxly closed, and the high-pressure gas in the combustion chamber will flow back. , burn out the needle valve assembly. In addition, the dirt on the injector pressure regulating spring, tappet and other parts has 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 have entered through the high-pressure oil pipe. The fuel injector will cause the needle valve assembly to become stuck. 2. The machine temperature is too high and the injector is not cooled properly, causing the ground valve parts to become stuck.

The hot summer has arrived. In addition to preventing heat stroke and cooling down the staff, Haixing reminds everyone that the generator set equipment should also perform necessary cooling operations to prevent the unit from high temperature burnout. The specific operation points are as follows: Copyright by: www .hxdlkj.com 1. The circulating cooling water in the water tank should be kept sufficient so that the generator set can dissipate heat to the maximum extent during operation. 2. When in use, the diesel unit should be placed in a shaded and dry place outdoors or in a well-ventilated place in the machine room to facilitate air circulation. 3. It is prohibited to place flammable and explosive items near the diesel unit to avoid causing safety hazards. 4. Be careful not to run the diesel unit for a long time. The unit should be paused every 5 hours to avoid wear and tear caused by the unit operating in a high temperature environment. copyright by: www.hxdlkj.com During summer production operations, only

Cummins generator sets are Haixing’s best-selling units. During the process of contacting customers, the staff actively solved various questions for everyone. Among them, there were many inquiries about the non-circulating coolant of the units. Here, Haixing will help you. Briefly describe the five major causes of coolant failure. Non-circulating coolant is caused by the following reasons: Copyright by: www.hxdlkj.com (1) Cummins generator set radiator fins are clogged or damaged. The cooling fan does not work or the radiator is clogged, the coolant temperature does not drop, and the water tank is rusted and damaged, causing leakage and poor blood circulation. copyright by: www.hxdlkj.com (2) The thermostat of the Cummins generator set is faulty. The engine combustion chamber is equipped for the purpose of thermostatic control of the engine combustion chamber if the thermostat is at the specified temperature (82

1. Generator loss of excitation protection. Loss of excitation protection is used as a loss of excitation fault protection when the generator excitation current drops abnormally or disappears completely. It is composed of criteria such as excitation low voltage Ufd(P), system low voltage, static stable impedance, TV disconnection, etc. whose setting value automatically changes with the active power, and operates in signaling and demagnetization respectively. The excitation low voltage Ufd(P) criterion and the static stability impedance criterion are both related to the static stability boundary and can detect whether the generator loses static stability due to loss of excitation. The static stability impedance criterion operates at the static stability boundary after demagnetization. 2. Generator over-excitation protection Over-excitation protection is a protection that reflects the excessive magnetic density in the core of the generator due to reduced frequency or excessive voltage. The over-excitation protection is divided into high and low settings. The low setting sends a signal and reduces the excitation voltage after a fixed delay of 5 seconds (the function of reducing the excitation voltage and excitation current is not used yet). The high setting acts on the decompression after an inverse time limit. Demagnetization. The upper limit of inverse time delay is 5 seconds and the lower limit is 200 seconds.

One point that has been emphasized many times in the diesel generator starting rules is that the switch must be turned off before starting. Many people expressed doubts about this regulation, and Haixing gave the answer. The main reason for doing this is to prevent the phenomenon of reverse power transmission. What is the reverse power supply phenomenon? What are the consequences of this phenomenon? Copyright by: www.hxdlkj.com Each generator set will be equipped with a load output switch for the customer. Before the generator set is started, the load switch must be Disconnected. Only when there is a power outage and it is detected that there is no current on the grid, the current from the generator set can be transmitted to the grid. At this time, the grid switch must be in the off state, otherwise, when the mains power comes in, , prone to reverse power supply. The situation of self-prepared diesel generators delivering power to the city grid is called reverse power delivery. There are two serious consequences: copyri

Lubricating oil for diesel generator sets has the largest variety of petrochemical products and is widely used. Lubricating oil can protect the unit well and reduce friction.At the same time, lubricating oil is a technology-intensive product.Only by doing a good job in lubricating oil management and using lubricating oil correctly can the technical performance of lubricating oil be exerted, which can ensure the normal operation of equipment, extend the life of equipment, save lubricating oil, save energy, and improve economic and social benefits.Transportation and storage management of lubrication.The transportation and storage requirements of lubricating oil mainly include: (1) Bulk oil products 1. Containers for holding and storing lubricating oil must be clean; 2. Transportation and storage requirements for transformer oil and turbine oil 'special tank lines'; other oils Storage and transportation facilities should be set up according to the three major categories of internal combustion engine oil, hydraulic oil and gear oil.3. Special attention should be paid to preventing the mixing of water and impurities during transportation and storage.4. The storage period of bulk lubricating oil should generally not exceed half a year.

Affected by the use environment, diesel generator sets may encounter varying degrees of collision and water vapor erosion, causing problems such as cracking, wear, and corrosion. How to repair these damages? Haixing provides repair methods for common damage to the body. 1. Freeze crack. This is damage that is prone to occur on diesel engines in winter. Cracks in the body can only be repaired by cold welding in parts that are not stressed. First, drill anti-crack holes at both ends of the crack, then plant a number of iron nails along the crack, and then use several pieces of patching plates perpendicular to the direction of the crack, and use low-carbon steel welding rods to weld firmly along the crack and patching plate. Pay attention to tapping the weld with a small hammer while welding, and then use flame to correct it after all welding. Copyright by: www.hxdlkj.com 2. The 205 bearing holes at the upper and lower balance shaft ends are worn. This situation must be repaired immediately. When the bearing hole is lightly worn, it can be repaired by enlarging the outer diameter of the 205 bearing.

The role of crankcase ventilation: When the engine is working, there is always a part of the combustible mud gas and exhaust gas that escapes into the crankcase through the piston rings. The gasoline vapor that escapes into the crankcase condenses and will thin the engine oil and worsen its performance. The exhaust gas contains water vapor and sulfur dioxide. The water vapor condenses in the engine oil to form foam, damaging the engine oil supply. This phenomenon is especially serious in winter; sulfur dioxide reacts with water to form sulfurous acid, and sulfurous acid forms sulfuric acid when it encounters oxygen in the air. These acidic substances The appearance of oil not only deteriorates the engine oil, but also causes parts to be corroded. As combustible mud gas and exhaust gas escape into the crankcase, the pressure in the crankcase will increase, and the oil will leak out from the crankshaft oil seal, crankcase liner, etc. The oil vapor lost into the atmosphere will increase the pollution of the engine to the atmosphere. The engine crankcase ventilation device can prevent or reduce the above phenomenon. Therefore, the functions of the engine crankcase ventilation device are: 1. Precautions

When the diesel generator set is used indoors, it may be equipped with a special machine room. According to the working status and performance of the generator set, the setting of the machine room also has requirements. Haixing has compiled several principles and matters to share with you: Installation of diesel generator sets The principle of layout of the machine room is to ensure the conditions required for the normal operation of the unit (including diesel engine, generator and control panel), and to facilitate operation, maintenance and maintenance. Users should consider the specific layout plan based on the actual situation of the unit and the specific models used. The following matters should be paid attention to when designing the machine room: Copyright by: www.hxdlkj.com (1) An operating room with sound insulation facilities should be set up next to the power distribution room, and an observation window should be provided to facilitate the operator to grasp the operation of the diesel generator set in a timely manner situation. copyright by：www.hxdlkj.com (2)