What should I do if there is a sudden power failure when the diesel burner of the thermal oil boiler is heated

The hot summer is the peak demand period, which is likely to cause the transformer or some equipment in the substation to overload and automatically Tripped or damaged. So when there is a sudden power failure, how to deal with the operation on the light oil burner of the high temperature heat transfer oil furnace? The design engineer reminds everyone that in the face of a sudden power failure during the operation of the heat transfer oil, we should immediately adopt the cold oil flooding process, and it cannot be ignored. This is because when the circulating pump cannot be due to electricity, the oil temperature is due to the furnace or furnace waste heat. , The intracranial heat transfer oil will exceed the value of the light oil burner of the heat transfer oil furnace within 1 to 2 minutes. At this time, you should quickly open the cold oil conversion valve, the cold oil expansion tank, and gravity to the oil pan after the furnace. At the same time, wet coal pressure fire or emergency shutdown treatment. Special note: This cold oil replacement process should be completed within 5 minutes. Also be careful not to drain all the oil in the expansion tank to prevent the system from inhaling air. In order to facilitate processing, the oil in the expansion tank can be put into the storage tank in advance. When the oil in the expansion tank is about to be exhausted and not exhausted, an oil level mark is formed on the level of the oil storage tank. During the cold oil changeover operation, when the oil level in the storage tank approaches the mark, close the cold oil change valve. Electric heating oil burner light oil burner uses electricity as heat source and heat transfer oil as heat transfer medium. Through the circulating oil pump, the heat transfer oil is repeatedly heated in the system, and finally the heat energy is transferred to the direct current special industrial furnace with heating equipment. The electric heat conduction oil furnace light oil burner system is a closed cycle heating system composed of heat conduction oil furnace light oil combustion body, heat exchanger, control cabinet, thermal oil pump, expansion water tank, etc. In the daily maintenance of electric heating oil heaters, the principles of prevention first and safety first should be adhered to. Put the heat transfer oil in the expansion tank into the oil storage tank in advance. When the heat-conducting oil in the expansion tank is about to be exhausted and not completely exhausted, mark the level of heat-conducting oil on the storage tank. In the case of a sudden power failure, when the thermal oil level in the oil storage tank tends to mark, we will immediately close the cold oil delivery valve. The normal start procedure of the electric heating oil heater is to start the pump before heating, and stop the pump after stopping the heating. During normal shutdown, the temperature gradually decreases, the temperature of the heat transfer oil drops below 70°C, and the hot oil circulation pump stops running. Finally, the main power should be turned off to record the switch. Fire prevention 1. Pipe burst fire 1. The oil quality is poor and the residual carbon in the oil is too much. If the heat transfer oil is inadvertently mixed with water, impurities or other grease during storage, transportation or operation and maintenance, when the temperature of the heat transfer oil rises to 100 ℃, it will cause oil injection and fire, or the water will evaporate and generate high pressure at high temperature, resulting in The equipment exploded over pressure. Add carbon residues in the oil index. The heat transfer oil will undergo some chemical changes during the heating operation and produce a small amount of high polymer, and local overheating will produce coke. These high polymer and carbon residues are insoluble in the oil and suspended in the oil. In the operation of these substances, they will be deposited on the bottom of the drum and overheated bumps, deposited on the tube wall and overheated. Therefore, the heat transfer oil should be sampled and analyzed on a regular basis, and the quality changes of the oil products should be grasped in time, and the reasons for the changes should be analyzed. New heat transfer oil should be added regularly to make the carbon residue basically stable. The heat transfer oil added to the boiler diesel burner must be dehydrated in advance. 2. The outlet temperature exceeds the temperature and the flow rate is too low. Sometimes due to high oil temperature and engine temperature does not rise, it cannot meet production needs. Some units take the method of increasing the outlet temperature to ensure the heat supply. As a result, the outlet temperature is close to or even exceeds the maximum allowable use temperature of the heat carrier, which intensifies the degree of coking, fouling, and heat transfer efficiency. Circulate until the furnace tube bursts. In addition, too low a flow rate will cause the temperature of most or part of the tube inner wall of the heat surface to be higher than the allowable oil film temperature, and shorten the normal service life of the heat transfer oil, resulting in drums, tube bursts and overheating. Therefore, the maximum oil temperature at the outlet of the boiler diesel burner should be about 30°C lower than the working temperature of the heat carrier to prevent the oil from overheating and decomposing during use. During operation, the speed of the heat transfer oil in the radiant heating surface pipe should not be less than 2m/s, and the speed of the heat transfer oil in the convection heating surface pipe should not be less than 1.5m/s to prevent the occurrence of carbon residue, blockage of the pipe diameter and pipe wall overheat. 2. Leakage fire Due to welding quality problems, part of the welding seam of the heat medium transport monitor will fall off or evaporate in a large amount when the temperature is too high, causing pipeline vibration or even damage, leading to a large amount of heat transfer oil leakage. However, heat transfer oil has a strong permeability, especially at the flange gasket, which is more serious. Therefore, when installing, choose a qualified installation company. The pipeline connection is well welded, and the flange connection is supplemented. The screw connection cannot be used. The flange connection should use oil-resistant, pressure-resistant, high-temperature resistant high-strength graphite products as the sealing gasket . All accessories in contact with the heat carrier must not be made of non-ferrous metals or cast iron. Should steel pipe be used? 20 steel seamless pipes, fasteners, especially connecting bolts on the main circuit are not used. 35 steel drums are more suitable. Before the boiler diesel burner is ignited, the boiler diesel burner supervision office and the installation company shall conduct pressure tests on all pipes and valves until leakage is found. The heat transfer oil should circulate in the system pipeline for no less than 60 minutes, and the ignition should be performed after confirming that it is normal. 3. Power failure and fire. When the thermal oil boiler diesel burner is in normal use, the unit will occasionally experience a sudden power failure. At this time, the circulating oil pump stops working, and the coal in the furnace continues to burn, causing the boiler diesel combustion engine oil temperature to continue to rise. If the oil temperature rises If it drops too quickly, the oil temperature will be locally overheated and coking in a short period of time, resulting in excessively high pipe overheating temperature. Therefore, in the event of a power failure and other failures, all furnace doors should be opened to immediately eliminate the remaining coal 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 combustion engine synchronously. Slowly put the high-temperature oil into the oil storage tank, and let the cold oil in the expansion tank slowly flow into the boiler diesel burner to take away heat in time. Conditional devices can be equipped with dual power sources, such as small gasoline generators, whose circuits and circulation pump circuits are switched to prevent accidents caused by high oil temperature coking in a short time after power outage. In addition, the stoker must be trained by the technical supervision department and issued a 'stoker operation certificate'. Only a licensed stoker can operate independently to ensure that abnormal situations are eliminated in time. Keep the circulating pump and the oil storage tank clean, remove the oil and dust accumulated on the surface at any time, and strictly prohibit external flying fire. ! If you are interested in diesel combustion engines, please contact us for a quote!