When the diesel generator set overheats, the temperature of the engine oil will rise, destroying the normal lubrication effect, threatening the normal operation of the diesel generator set, and in severe cases, causing accidents. Below we analyze the main causes of diesel engine overheating: 1. Cooling system failure: lack of water in the radiator; water pump impeller is damaged, or blocked by sludge and debris; bubbles in the water pipes form air plugs; severe scale in the cooling system, Or the water channel is blocked; the fan belt is loose and the fan efficiency decreases; the scale inside the radiator is serious and there is a lot of dirt on the external surface, which greatly reduces the heat dissipation efficiency. 2. Failure in the combustion process: the intake and exhaust valves are not closed tightly and the valve clearance is too small; there is too much carbon deposits in the combustion chamber and poor heat conduction, which prevents the heat in the cylinder from being transferred to the cooling water, causing damage to the cylinder.

As we all know, the cylinder of the generator set is one of the vulnerable parts, and the common damage is corrosion and wear. When the cylinder block is in direct contact with high-temperature and high-pressure gas, and the piston reciprocates at high speed, the working surface of the cylinder wall is subjected to large side pressure and the resulting periodic force. Improper use and maintenance can easily cause premature wear of the engine cylinder wall. Why is the cylinder prone to corrosion and wear? What can be done to effectively avoid such corrosion? The corrosion of diesel generator engine cylinder liner is the damage caused by the electrochemical action of acids. When the temperature of the cylinder liner wall is low, the water vapor entering the cylinder will condense into water droplets. These water droplets interact with the combustion gas to generate acids, such as organic acids, sulfuric acid, carbonic acid, etc., which condense on the cylinder wall and corrode the cylinder. Practice has proved that when the cooling water temperature is lower than 65~70℃, or the diesel engine is started frequently at low temperatures, corrosion and wear will increase significantly. So, in

After the diesel generator set arrives, many customers need to consider where to install it first. Haixing Power believes that everyone should consider two core issues: generator set installation site selection and exhaust design. One of the early design decisions is whether to locate the generator set indoors or outdoors. The overall cost and ease of installation of a power system depends on the layout and physical location of the equipment - generator sets, fuel tanks, ventilation ducts and louvers, etc. Special attention needs to be paid to ensuring the ventilation of the generator set. Since the generator set is composed of a diesel engine, a generator, and a control system, enough oxygen is needed to burn and do work during engine operation, and the cooling system of the generator and engine also needs A fan is needed to cool down the air. The air inlet and exhaust vents should be placed on both sides of the machine room as much as possible, and the air flow direction should be from the control box side to the air exhaust vent side. In addition, it should be considered that the exhaust gas generated during the operation of the diesel engine also needs to be discharged

There are many brands of generator sets on the market at present. Haixing Power reminds everyone that when purchasing, you should pay attention to the performance and quality of the selected unit must meet the requirements of relevant standards, as well as the actual load conditions, installation site conditions and market conditions of the place where the generator set is used. Electricity guarantee condition. At present, my country and the world have relatively detailed standards and regulations for generator sets in various application fields. Manufacturers must be able to produce appraisal or certification certificates from national or international certification agencies. my country's current relevant standards for internal combustion engine generator sets include: the general GB2820-97 'Reciprocating Internal Combustion Engine Driven Alternator Set' (equivalent to international ISO8528), and JB/T10303-2001 'Technical Conditions for Power Frequency Diesel Generator Sets' for power frequency units. ', GB12786-91 'General Technical Conditions for Automated Diesel Generator Sets' for automated units, etc. Relevant standards of relevant departments and industries include: GJB

Diesel generator sets used indoors are generally placed in a special machine room. In order not to bring noise pollution to the surrounding environment, the machine room needs to be noise-reduced. According to Haixing Dynamics’ summary, there are three commonly used methods. Noise reduction in the computer room needs to deal with the causes of noise separately. The main methods are as follows: 1. Noise reduction by air intake and exhaust: The air inlet channel and exhaust channel of the computer room are made of soundproof walls respectively, and silencers are installed in the air inlet channel and exhaust channel. piece. There is a distance within the channel for buffering, which reduces the intensity of the sound source radiating outward from the computer room. 2. Control mechanical noise: Lay absorbing and sound-insulating materials with high sound absorption coefficients on the top and surrounding walls of the computer room, mainly to eliminate indoor reverberation and reduce the sound energy density and reflection intensity in the computer room. In order to prevent noise from radiating outward through the door, fire and soundproof iron doors are installed. 3. Control smoke exhaust noise: smoke exhaust system

The use of coolant in the diesel generator set solves the problems of poor cooling of the generator set and excessive temperature of the parts, and avoids the occurrence of operating failures of the diesel generator set. At the same time, its anti-corrosion, anti-rust and anti-scaling effects also create a better environment for the diesel generator set. operating environment. Detailed explanation of the function of generator set coolant: Antifreeze function: To ensure that the cooling system of the diesel engine is not frozen when the temperature is too low. Generally speaking, the antifreeze temperature of commonly used coolant is that the freezing point is between minus 20 degrees and 45 degrees, depending on the temperature. Make a reasonable choice based on the actual needs of the region. Anti-boiling effect: It ensures that premature boiling will not occur under high temperature conditions. The boiling point of commonly used coolant is 104 to 108 degrees. When the coolant is added to the cooling system and generates pressure, its boiling point will be higher. Anti-corrosion effect: Special coolant can reduce corrosion to the cooling system, thereby avoiding water leakage problems caused by corrosion of the cooling system. Anti-rust effect: coolant can

Although summer has not yet entered, the temperature has risen significantly in the past few days. Many friends have begun to dress in short-sleeves and shorts. The temperature is getting hotter. The use of generator sets in high-temperature environments has become a common issue. It triggered everyone's discussion again. Haixing Power reminds you that before the official operation, everyone should first understand the content: 1. Before starting, check whether the circulating cooling water in the water tank is sufficient. If it is insufficient, add purified water to replenish it. Because the heat generated by the unit relies on water circulation to dissipate heat. 2. High-temperature weather is relatively hot and humid. Care must be taken not to affect the normal ventilation and cooling of the generator. Dust and dirt in the ventilation ducts must be cleaned frequently to keep them unobstructed. The generator set should not be operated in a high-temperature environment exposed to sunlight to prevent the generator set from damage. The body heats up too quickly, causing failure. 3. After the generator set has been running continuously for 5 hours, it should be shut down for half an hour to let the generator rest.

According to Haixing Power's summary, there are many diesel generator set failures and losses caused by neglecting safety precautions, and the safety hazards caused by irregular operation of equipment are great. Users are reminded to read the safe usage guidelines several times, so as to avoid some safety hazards. The following is the opinion sheet on the safe use of diesel generator sets that everyone needs to pay attention to: 1. Pay attention to the risk of electric shock. The power from the generator set must pass through a transfer switch with a mechanical interlock when entering the public line, and it must be separated from the mains power. When it needs to be connected to the mains grid, it must be approved by the professional department (power supply bureau) and special equipment for grid connection must be used. Otherwise, there will be serious equipment and personal accident hazards. The unit must be reliably grounded, and insulated tools must be used for maintenance of live equipment. In humid environments, pay attention to the risk of electric shock. Follow all electrical regulations and install

During the operation of the generator set, many customers have observed abnormal smoke emission from the equipment. Here, Haixing Power technicians have compiled three types of fault analysis corresponding to the smoke abnormality and shared them with you. I hope you can use the following introduction. Master the self-diagnosis of this common problem. (1) Black smoke copyright by: www.hxdlkj.com Diesel is a complex hydrocarbon. Unburned diesel injected into the combustion chamber is decomposed by high temperature to form carbon black. When exhausting, it is discharged together with the exhaust gas to form black smoke. Black smoke is a sign of incomplete combustion of fuel in the combustion chamber. The main influencing factors are as follows: 1. Wear of piston rings and cylinder liners. After the piston rings and cylinder liners are worn, the compression pressure is insufficient, causing the normal ratio of the mixture to change at the end of the compression stroke of the cylinder, causing the fuel to be mixed under anaerobic conditions. Burns under the influence, producing carbon deposits.

The filtration function of the diesel filter in the generator set is very important. Everyone should attach great importance to the maintenance of the parts of the diesel generator set, especially the three-filter part of the generator set. Clean or replace the filter in time to ensure It functions normally. According to Haixing Power’s understanding, there are three aspects of filter maintenance that are easily overlooked by customers and friends when maintaining their generator sets. Copyright by: www.hxdlkj.com 1. When some users maintain diesel filters, The upper and lower sealing rubber gaskets and oil cover of the filter element are lost, so that the diesel oil is not filtered by the filter element, but flows into the inner cavity of the filter element without resistance from the gap between the filter element and the filter cover, causing the diesel filter to lose its filtration and purification function. 2. Some users reverse the position of the diesel filter tray and spring, or even throw them away, leaving the oil inlet and outlet holes on the diesel filter cover open.