Maintenance requirements for heat conduction oil boiler diesel burner

　　The heat transfer oil boiler diesel burner is a type of boiler diesel burner that transfers heat through the heat transfer oil. Compared with traditional boiler diesel burners such as steam boiler diesel burners, it has less heat loss during heat transfer and less harmful emissions during operation, so it is very popular with customers. Then let's briefly introduce the maintenance of boiler diesel burner.　　Factors affecting the life of the thermal oil boiler diesel burner　　1. Sudden power failure, the circulation pump stops, and the flow rate is equal to 0. Because the refractory regenerator in the furnace continues to release S heat, the heat transfer oil in the furnace tube is overheated, which will cause cracking and coking. Long-term accumulation will also cause the furnace tube to explode and cause disaster. Therefore, please follow the instructions. 2. Strictly control the flow rate of the heat transfer oil not to be less than 1.5 m/s. This item was originally determined by design, but due to the use of some S, the temperature difference between the inlet and outlet is too large, which destroys the original design requirements and makes the heat transfer oil Can not maintain the flow state, the boundary layer thickens, so that the furnace wall exceeds the temperature of the oil film, causing the thermal oil to crack, polymerize, deposit carbon, give coke and even burn through the furnace tube.　　3. Reasonably choose the light oil burner of the thermal oil furnace. Follow the instructions to choose the heat-conducting S oil, and use it strictly for over-temperature. Don't save money to buy unqualified oil, and you can't mix the heat-conducting oil by yourself. Otherwise, the furnace tube will be blocked in a few months at most six months, causing a fire. The consequences are unimaginable! 　　 4. After half a year of general use, the heat transfer oil must be sampled and tested according to the instructions. If any problems are found, the heat transfer oil should be replaced immediately, but it must be noted that different types of heat transfer oil cannot be mixed.　　Factors that people need to consider when buying a thermal oil boiler diesel burner　　1, consider the conditions of use. If the heat-conducting oil boiler diesel burner is used in the liquid phase system, the heat-conducting oil boiler diesel burner whose boiling point is higher than the operating temperature should generally be selected, because the higher the boiling point, the lower the vapor pressure during movement, which is convenient to use; if it is For use under gas phase conditions, heat transfer oil should be selected at a suitable temperature and vapor pressure within the range of 0.098~0.294MPa (1~3kgf/cm), such as biphenyl plus diphenyl ether low melting heat transfer oil.　　2. Consider the use temperature. Choose the right heat transfer oil according to the use temperature. If the use temperature is 350~400℃, you should choose the biphenyl and diphenyl ether low-melting heat transfer oil; when the use temperature is 300~350℃, you should consider the alkylbenzene type, dibenzyl toluene or hydrogenated terphenyl type Heat transfer oil; when the temperature is 250~300℃, consider choosing alkyl naphthalene, benzyl toluene and alkyl benzene type heat transfer oil; if it is used below 250℃, choose relatively low price mineral heat transfer oil.　　3. Consider the thermal oil boiler diesel burner and system conditions. If it is used in a long-term continuous operation system, a heat transfer oil with high thermal stability must be selected; when used in an intermittent operation system, the requirements for thermal stability can be relaxed. During equipment shutdown, heating can be considered Keep the corresponding temperature; if used in the equipment system related to food processing, you should consider choosing non-toxic or low-toxicity, high-safety products, such as silicone, fluorine, etc.; such as heating and cooling processes using the same heat Oil, due to the choice of heat transfer oil with a wide temperature range.　　5. Consider the conditions and requirements of the use area. If it is used in cold areas in the north, heat transfer oil with good low temperature fluidity should be selected to facilitate the start-up of the equipment; if it is used in places with strict requirements for dangerous goods, it should be considered to use safe, non-flammable fluorine products .　　 Ways to extend the life of the thermal oil boiler diesel burner　　 1. In the course of use, you need to regularly test the oil. When there is a problem, it needs to be replaced in time, so as to avoid unnecessary trouble. 2. If the heat transfer oil comes into contact with the air, it is prone to oxidation, and cracking occurs at an alarming rate, which affects its quality. Therefore, you must pay attention to maintaining the tightness of the product when using it, otherwise it will appear The phenomenon of shortened service life. 3. Control the use temperature of the heat transfer oil within a reasonable range. Since the maximum use temperature of the product is specified, you must pay close attention to the temperature change when using it to avoid over-temperature phenomenon and cause unnecessary trouble. 4. In the precautions for extending the service life of the heat transfer oil, it is also essential to clean the heating system regularly. Therefore, it is best to clean it regularly, so as to prevent coking, blockage, etc. from affecting the product. The heat transfer.　　Daily maintenance of heat transfer oil boiler diesel burner　　One, cleaning work　　1, do a good job of cleaning and sanitation of the heat carrier furnace room, so that no debris is accumulated in the furnace room.　　2. Keep the appearance of the heat carrier furnace and equipment clean, and remove the external dust, which can not only create a clean environment, but also make it easy to observe the operating status of the equipment, and find the hidden danger of the equipment in time.　　3. Clean the dust collector and ash box, generally two to three times per shift.　　 4. The heating furnace room should maintain good lighting conditions.　　 5. Oil and gas stoves should often wipe off the oil and dust on the combustion surface, especially for vertical gas stoves. Because of the high temperature on the top, it is strictly forbidden to place flammable materials.　　Second, lubrication work　　 Regularly add oil to each lubrication point according to the diagram to ensure the normal operation of the operating equipment.　　3. Inspection work　　 1. There should be no fire and air suction in the coal-fired heating furnace. The steel structure, masonry and furnace door of the furnace should be intact to maintain the tightness of the furnace.　　2. Carry out roving inspections of the furnace body and coal-fired furnace hearth, grate and ancillary equipment, discover problems in time, and take corresponding measures.　　 3. Check the operation of each equipment, the transmission should be no noise. The lubricating oil should be sufficient before the hoisting machinery of the coal-fired furnace grate speed control box is decelerated. The slag machine and the induced draft fan should be filled with lubricating oil, and the cooling water of the induced draft fan should be connected.　　4. Check whether the values ​​of pressure gauges, temperature gauges, and flow meters are normal, and judge the operating status of the boiler diesel burner.　　 5. Check the use of heat transfer oil and the temperature of the heat transfer oil in the upper tank. It is strictly forbidden to exceed 70°C to prevent coking and leakage.　　Four. Recording work　　 The data (pressure, pressure difference, temperature, temperature difference) and problems found during the inspection will be recorded as necessary to provide a basis for future failure judgment and treatment. Correct cleaning of the heat-conducting oil boiler diesel combustion engine 1. Drain the old oil: Use the heating system to heat the heat-conducting oil to 70-80℃, and discharge all the heat-conducting oil in the system while it is hot. The oil is released as much as possible, and the cleaning agent that cannot be released will be discharged out of the system after the oil is thinned by penetration, stripping, and dissolution. 2. Pre-washing: After measuring and dissolving the cleaning agent according to 1.5% of the total circulating water, put it into the system at any part of the heating system, fill the system with clean water, turn on the circulating pump to circulate, and use the heating furnace to raise the water temperature To 60°C±5°C, switch the relevant valve of each reactor in the system to make all parts in the system circulate separately. After three to five hours, open all low drain valves of the system to drain the water from the system. 3. Cleaning: Dissolve the cleaning agent according to 4.5~6.5% of the total circulating water, put it into the system at any part of the heating system, and fill the system with clean water, turn on the circulating pump to circulate, and use the heating furnace to heat Clean the agent to 90℃±5℃. Switch the valve of the system so that all parts in the system can be cleaned. It is advisable to switch the valve every hour. The entire cleaning time is not less than 24 hours.　　4. Washing ①: Fill the system with clean water, turn on the circulating pump to circulate, use the heating furnace to raise the water temperature to 90℃±5℃, switch the relevant valves in the system, so that all parts in the system are circulated separately. Rinse the system. After three hours, open all the low-position drain valves of the system to drain the water in the system. 5. Water washing ②: Fill the system with clean water again, turn on the circulating pump to circulate, use the heating furnace to raise the water temperature to 90℃±5℃, switch the relevant valves in the system, and make all parts of the system circulate separately . Rinse the system. After three hours, open all the low-position drain valves of the system to drain the water in the system. 6. Water washing ③: Fill the system with clean water, turn on the circulating pump to circulate, use the heating furnace to raise the water temperature to 90℃±5℃, and rinse the system. After three hours, open all the low-level drain valves of the system. Drain the water in the system. After the discharge is completed, compressed air can be used to purge the remaining water in the system until it is exhausted according to the conditions.　　7. Add new oil: Inject new heat transfer oil into the system.　　 8. Dehydration: The dehydration method is equivalent to the dehydration standard before the new system is used.　　 9. Normal operation: The system is put into normal operation. When the heat transfer oil needs to be replaced, what conditions need to be based on? When testing the running heat transfer fluid, it is found that the viscosity is affected by decomposition and polymerization, and the change is irregular; the acid value gradually increases at the initial stage of oxidation and then decreases; flash point It is an important indicator of the safety of oil products; the residual carbon has been on the rise, starting to slow down, and then the value of the increase has accelerated significantly. In short, one of the above indicators cannot be looked at in isolation, but a comprehensive analysis and judgment must be made to determine whether the heat transfer oil has been scrapped and needs to be replaced.　　 1. The viscosity change of the heat transfer oil is greater than ±20%, so attention should be paid.　　2. The flash point change of the heat transfer oil is greater than ±15%, so attention should be paid.　　 3. The acid value of the heat transfer oil is greater than 0.5mgKOH/g, which should be paid attention to.　　4. The carbon residue of the heat transfer oil reaches 1.5%, which should be paid attention to.　　Precautions for the replacement and use of heat transfer oil　　In most cases, the heat transfer oil can be used for many years, but it is afraid of dirt, water, and high temperature, so it needs to be carefully maintained. In the engineering hydraulic machinery and equipment accidents encountered daily, the failures caused by heat transfer oil account for about 80% of similar accidents. This situation reflects the lack of necessary understanding of the importance of heat transfer oil by engineers and technicians. The management of heat transfer oil is not tight in normal work. Therefore, raising awareness and strengthening the management of heat transfer oil are of practical significance for ensuring the normal operation of hydraulic machinery and improving construction efficiency.　　 When other oils are mixed in the heat transfer oil, or the contamination of the heat transfer oil is caused by external dust, metal particles, rust particles, water and other substances, the service life of the heat transfer oil will be shortened sharply. The fluid pressure oil in operation should be analyzed and tested. If one or more of the oil change indicators are unqualified, the heat transfer oil should be replaced.　　The problems that should be paid attention to in the use of heat transfer oil: 　　The heat transfer oils of the same kind and different manufacturers with the same viscosity grade cannot be mixed and used. After a certain amount of mixed storage and mixed use experiments, make a decision. Because even if the varieties and viscosity grades are the same, different manufacturers may not necessarily have the same chemical composition and selection of additives. Daily maintenance of heat transfer oil 1. It is necessary to do a good job of filtering heat transfer oil. If you want to use heat transfer oil to do the corresponding work, it must be ensured that the quality of the heat transfer oil is relatively good, and the internal impurities are relatively small, but you are doing work. In the process, there will still be more problems, which can easily cause a lot of impurities in the heat transfer oil, and the use effect of such heat transfer oil will not be particularly good. After using for a period of time, the best way is to check what problems may occur inside the heat transfer oil, and then filter the heat transfer oil to a certain extent. This filtering work can gradually improve the use effect of the heat transfer oil, and at the same time. To ensure our use effect, we should also pay attention at this time. After filtering, we should also do the corresponding inspection. If the inspection is neglected, this will definitely have a certain impact.　　2. It is necessary to understand the condition of the heat transfer oil in time and replace it. Of course, you should also pay attention to the actual quality of the heat transfer oil during the corresponding work. Not only debris will affect the use of the heat transfer oil, after a long time of use, the quality of the heat transfer oil will definitely be problematic, which will definitely affect the work situation, then what should be done at this time? ? Is also very simple. We need to use the heat transfer oil to a certain extent to see what problems may occur during use, what is the service life, if the quality cannot be restored, does it need to be replaced, etc. . 3. Do a test every once in a while. Don’t think that after replacing the heat-conducting oil, you will be fine, but in the process of testing, notice the quality trend of the heat-conducting oil, and then judge the use of heat-conducting oil based on these trends. What is the life, roughly determine the time to replace the heat transfer oil next time. ! If you are interested in diesel combustion engines, please contact us for a quote!