2019 boiler diesel burner overpressure emergency treatment

According to the type of heat conduction oil boiler diesel combustion engine accident, the degree of damage and the assessment result, analyze the accidents that may occur at the scene According to the analysis results, set up a plan, and the plan was announced by the factory emergency rescue headquarters. The emergency treatment of the accident includes the following: 1. The first-level emergency response occurs to the general incident of the boiler diesel combustion engine (such as: bulging, a small amount of leakage, etc. ), some companies or workshops can normally use resources for disposal to control the situation and gradually eliminate risks. The resources can be used normally, which means that the company can use its own normal human and material resources to complete its daily work. 2. The interference of the boiler diesel combustion engine in the secondary emergency response is more serious, such as: pipes, slight water leakage or fire, etc.), which is a demand for the company, rather than some people participating in the rescue, giving full play to the company’s internal superior resources. There is some collaboration between the headquarters of personnel, equipment and other resources to respond to the composition of the second-level emergency plan, which is led by the general manager. 3. Three-level emergency alarm for the outbreak of major events of the boiler diesel combustion engine (for example: the boiler diesel combustion engine tube explodes, leakage causes fire, blasting, etc.). The third-level emergency response is commanded by the Municipal Emergency Rescue Headquarters and is responsible for handling hazardous chemicals. 4. If the boiler's diesel combustion engine burns, leaks, and the situation is relatively minor, it needs to be reported step by step, and a brief treatment is carried out to eliminate the danger, and some related plans can be initiated. 5. In the event of deep burns, leakage and deflagration accidents of the boiler diesel combustion engine, the plan will be activated immediately. 1. Fire prevention 1. Fire caused by pipe burst. The engine oil is of poor quality and the carbon residue index in the engine oil is too much. When the heat transfer oil is heated to 1000°C, it will spray out oil and catch fire, or the water will be heated and evaporated to generate high pressure, which will cause overpressure explosion of the equipment. The extra carbon residue in the engine oil index. The heat transfer oil will undergo some chemical changes during the heating operation and generate a small amount of high polymer, as well as coke generated by local overheating. These high polymer and carbon residues are insoluble in oil and The oil suspended in the oil will deposit on the bottom of the drum and expand overheated during operation, deposit in the pipe wall and overheat. Therefore, it is necessary to sample and analyze the heat transfer oil on a regular basis, grasp the change of the oil quality in time, analyze the reasons for the change, and regularly add new heat transfer oil to make the carbon residue basically stable. The heat transfer oil added in the boiler diesel burner must be dehydrated. If problems are discovered in advance, appropriate measures shall be taken in time. 2. The outlet temperature is too high and the flow rate is too low. Sometimes the engine temperature cannot meet production requirements because of the high oil temperature. Some devices take measures to increase the outlet temperature to ensure the supply of heat. As a result, the outlet temperature approaches or even exceeds the maximum allowable temperature of the heating medium, thereby increasing the degree of coking, scaling and heat transfer. The efficiency of using the engine's radiator is low, forming a vicious circle until the furnace tube bursts. In addition, a too low flow will cause the temperature of most or part of the inner wall of the heating surface to be higher than the allowable oil film temperature, and shorten the normal service life of the heat transfer oil, resulting in overheating caused by expansion and explosion of the tube. Therefore, the maximum oil output temperature of the boiler diesel burner should be about 30°C lower than the working temperature of the heat carrier to prevent the oil from decomposing during use. During operation, the flow of heat transfer oil in the pipeline with radiant heating surface should be no less than 2m/s, and the flow of heat transfer oil in the convection pipeline should be no less than 1.5m/s, so as to prevent carbon deposits and blockage of the pipe diameter , Pipe wall overheating and other accidents. 2. Leakage fire Due to welding quality problems, in the case of overheating, the weld part of the main heating medium conveying pipe will fall off or a large amount of vaporization, which will cause vibration or even damage to the pipeline, and cause a large amount of heat to leak conductive oil. Moreover, the heat transfer oil has strong permeability, especially at the flange gasket, which is more serious. Therefore, when installing, choose a qualified installation company, and the pipe connection should be welded, supplemented by an appropriate flange connection. Do not use threaded connections. The flange connection should be made of oil-resistant, pressure-resistant, high-temperature and high-strength graphite products. As a sealing gasket. All accessories in contact with the heat carrier must not be made of non-ferrous metals and cast iron. Steel pipes should be used without. Steel seamless pipes, fasteners, especially the connecting bolts of the main circuit are not included. Steel drums are more suitable. Before the boiler diesel combustion engine is ignited, the boiler diesel combustion engine supervision office and the installation company shall pressure test all pipes and valves until there is no leakage. The heat transfer oil should circulate in the system pipeline for no less than 60 minutes, and ignition can only be started after confirming that everything is normal. 3. Power failure and fire. When the diesel burner of the thermal oil boiler is in normal use, the unit will occasionally lose power. At this time, the circulating oil pump stops working and the coal in the furnace continues to burn, so the oil temperature of the boiler diesel combustion engine continues to rise. Therefore, in the event of a power failure and other failures, open all furnace doors to immediately eliminate the remaining coal combustion in the furnace, let a large amount of cold air enter the furnace, quickly reduce the furnace temperature, and eliminate the heat source; open the drain valve of the boiler diesel burner simultaneously , Slowly put the high-temperature oil into the oil storage tank, and make the cold oil in the expansion tank slowly flow into the boiler diesel burner to take away heat in time. Conditional units can set up a dual-circuit power supply, such as the setting of a small gasoline generator, and the circuit and the circulating oil pump circuit are switched to prevent the oil temperature from being too high in a short period of time after a power failure, which may cause coking and cause accidents. In addition, the staff must be trained and qualified by the technical supervision department, and all issued 'operation certificates' can only be operated by the holders to ensure timely elimination of abnormal situations. It is also necessary to keep the circulating pump and the oil storage tank clean, and remove the oil and dust accumulated on the surface at any time to prevent it from catching on due to an external fire. ! If you are interested in diesel combustion engines, please contact us for a quote!