Why do the diesel burners of thermal oil boilers need to boil oil?

　　The heat transfer oil boiler diesel burner is a new type of high-efficiency, safe, energy-saving and environmentally friendly industrial special boiler diesel burner. It transfers heat through the heat transfer oil and transfers the heat to Heat equipment is used to ensure the stable operation of heat equipment. So what is the reason that the thermal oil boiler diesel burner needs to boil oil after the purchase? Let's briefly explain below. The reason why the heat-conducting oil boiler diesel burner needs to cook oil makes the operator familiar with and master the operating points of the heat-conducting oil furnace light oil burner, and remove the light components and water in the heat-conducting oil, so that the heat-conducting oil furnace light oil burner is equipped Conditions of Use. When using a new boiler diesel burner, the oil must be boiled first, because the heat transfer oil contains water, then the auxiliary exhaust valve must be opened to facilitate exhaust, and it must be closed immediately when the oil is cooked. Otherwise, the heat-conducting oil in the boiler diesel burner will deteriorate, because the heat-conducting oil will quickly oxidize in contact with air at high temperatures, and the deterioration will cause the heat-conducting oil to fail.　　The heating process of the heat-conducting oil boiler diesel burner oil-boiler　　1. Heating curve: The heating process and the heating speed of the heat-conducting oil boiler light oil burner are carried out according to the heating curve.　　2, heating process: 　　 (1) After the cold furnace is ignited, control the heating rate not to exceed 10℃/H, until 90-95℃. When the furnace is cold, the viscosity of the oil is high, the flow velocity in the pipe on the heating surface is low, the oil film on the pipe wall is thick, and the heat transfer conditions are poor. If the heating speed is too fast, the temperature of the local oil film is likely to be too high.　　(2) In the range of 95-110℃, it is the stage of removing the residual water in the system and the trace water contained in the heat transfer oil medium. The heating rate is controlled in the range of 5℃/H. When the exhaust steam at the high-level tank vent pipe is large, there will be water hammer sound at the bottom, the pipe vibration will increase, and the pressure gauge pointers everywhere must stop heating, maintain a constant temperature, and reduce combustion if necessary. The length of this stage depends on the amount of residual moisture in the system and the quality of the heat carrier. The shortest time can be more than ten hours, and the longest time may take several days. Repeat several times between 95-110℃ to remove the moisture. Exhausted. It is not possible to blindly speed up the heating and dehydration process, because once the water in the system evaporates and vaporizes, the volume will expand rapidly, which may not only cause 'bumping' and cause the oil level to expand rapidly and eject a large amount, but also may cause the pressure of the entire system to rise sharply, leading The pressure component ruptured, causing a major accident.　　(3) After the dehydration process is completed, continue to increase the temperature at a rate of 30°C/H, but it should still be noted that residual water may evaporate. Stop the temperature increase if necessary. When the temperature reaches 210-230°C, the temperature rise should be stopped. At this time, it is mainly to remove the light components in the heat carrier. The presence of light components in the heat carrier reduces the flash point. Once it leaks, the possibility of deflagration increases. In the organic heat carrier furnace heated by liquid phase, the light components exist in the gas phase, which will cause gas barriers. The pump pressure of the circulating oil pump is unstable, the flow rate drops or even is interrupted. The process of removing light components varies according to different brands and different qualities of the heat carrier. When the gas in the vent tube is discharged and the pressure of the circulating oil pump is stable, the temperature can continue to rise at a rate of 10°C/H. (4) When the noise in the boiler diesel combustion engine and the pipeline becomes smaller and the circulating oil pump no longer empties, the temperature can be increased at a rate of 5°C/H, but it must not exceed 120°C until no more gas is discharged from the vent pipe . (5) The temperature from 210℃ to the working temperature of the heat carrier is carried out after the degassing, and the temperature is increased at a rate of 40℃/H. At this time, the instructions and actions of the measuring and control instruments should be fully checked whether they are sensitive and accurate; Whether the engine and ancillary equipment work normally, check whether the boiler diesel combustion engine and heating system work normally, and whether it can meet the production needs. The temperature difference between inlet and outlet should be 20-40 degrees, depending on the specific pipeline length. Precautions for the heating of the heat-conducting oil boiler diesel combustion engine when cooking oil The heat-conducting oil boiler diesel combustion engine must follow the principle of 'one slow and two stops'. One slow means a slow heating rate, and the second stop means 120 degrees—150 degrees and 210 degrees. -Two temperature sections of 230 degrees should stop heating up and maintain this temperature for a period of time. After the 　　 furnace is ignited, the temperature rise is controlled to 10 degrees/H until it is close to 100 degrees. Because of the high viscosity of the oil when the furnace is cold, the flow velocity in the heating surface tube is low, the oil film on the tube wall is thick, and the heat transfer conditions are poor. If the heating speed is too high, it is easy to cause the local oil film temperature to be too high. Not only blindly speed up the heating and dehydration process, because once the water in the system violently evaporates and vaporizes, the volume will expand by more than 1,000 times, which may not only cause 'bumping' and cause the oil level to expand rapidly and spray out a large amount, but also may cause the entire system pressure to rise sharply and cause failure When the component is evacuated again (the pump inlet pressure drops below 0.1mpa, there is a heavy panting sound), the next step can be performed.　　 When it comes to boiler diesel burners, exhaust channels will definitely be equipped to remove smoke in time and strengthen energy use. During the heating process of the heat-conducting oil boiler diesel combustion engine, various low-boiling substances contained in the heat-conducting oil are separated from the heat-conducting oil in the form of gas, and the water is also dispersed with the heat-conducting oil in the form of vapor.　　 When the cooling water leaks into the diesel burner system of the thermal oil boiler in operation. It is also quickly separated from the heat transfer oil in the form of water vapor. The connection point of the dry expansion pipe is the lowest pressure area in the main circulation pipeline of the heat-conducting oil boiler, so when the oil and gas (steam) are separated, a large amount of gas (steam) bubbles will rise from the expansion pipe to escape from the expansion oil tank to escape. Pressure.　　If the gas (steam) body cannot escape, the working pressure of the heat-conducting oil boiler diesel burner and system will greatly exceed its allowable value, and it will hinder normal operation and cause malfunctions.　　①Do not put into use when the pressure difference is unstable.　　②When the furnace is shut down, when the oil temperature should drop below 80℃, the hot oil circulation pump can be shut down.　　③ Make sure that the heat transfer oil circulates well at high temperature.　　④ During normal operation, the heat-conducting oil in the high tank should be kept at a high level, and the heat-conducting oil in the oil storage tank should be at a low level.　　⑤ Each mechanical lubrication point should be filled with oil according to regulations.　　⑥The oil outlet temperature shall not exceed the allowable working temperature of the heat transfer oil.　　⑦Different types of heat transfer oil are generally not allowed to be mixed. ⑧The hot oil circulation pump must be turned on before the ignition of the cold furnace. The water removed during the ignition and heating process enters the expansion tank in the form of water vapor through the expansion tube, and part of it is discharged from the exhaust pipe as gas, and the other part is condensed into moisture When sinking to the bottom of the tank, to prevent this part of the water from entering the circulation system again, during the heating process, the sewage pipe at the bottom of the expansion tank should be opened regularly to release the condensed water.　　⑩ When the heat carrier heats up to 200°C or more, the heat carrier furnace and the entire heating system should be thoroughly inspected, and all the connecting bolts should be thermally tightened once to eliminate the leakage caused by uneven expansion.　　The cleaning conditions of the thermal oil boiler diesel burner　　1. On the basis of the original setting, the inlet oil pressure increases and the outlet oil pressure decreases, the temperature difference between inlet and outlet oil is large, and the energy consumption increases. It shows that the carbon deposits of the boiler diesel burner coil are thicker, the flow aperture becomes smaller, and the flow rate is insufficient. This situation must be cleaned. After cleaning, fuel consumption can be reduced immediately, and the furnace tube can be unblocked to restore the original set pressure and temperature, and the service life of the boiler diesel burner can be extended. 2. Equipment carbon buildup, such as the veneer extruded by the uneven temperature of the hot press, the surface of the panel will be flowered and the pressure of the plate will be slow, which leads to the production quality. After cleaning, the temperature of the surface of the press is uniform, which solves the problem of the surface and improves Improve product quality.　　3, equipment such as radiator, setting machine, reaction kettle, drying equipment, etc., the set temperature cannot meet the original design requirements, the original setting requirements must be restored after cleaning, and the production is normal.　　4. Before changing to a new heat transfer oil, the system must be thoroughly cleaned to ensure the service life of the heat transfer oil and the new oil will not be contaminated.　　 5. Regular cleaning: Even the best heat transfer oil will cause carbon deposition after long-term use. If the carbon deposition is serious, it will cause partial blockage of the pipeline, bulging and bursting, and cause fire. It runs smoothly after cleaning, and the safe operation of the equipment is guaranteed. The cleaning method of the heat-conducting oil boiler diesel combustion engine: Pre-washing: After measuring and dissolving 1.5-2% of the total cycle water, the cleaning agent is put into the system at any part of the heating system, filled with clean water, and the cycle pump is opened Carry out the cycle, use the heating furnace to raise the water temperature to 60 ℃ ± 5 ℃, switch the relevant valve of each reactor in the system, so that all parts in the system can be separated into a cycle. After three to five hours, when the temperature rises to 95°C, turn on all the low-position drain valves of the system to drain the water in the system. Cleaning: After dissolving the heat-conducting and high-efficiency oil stain cleaning agent according to 4.5~6.5% of the total cycle water, put it into the system at any part of the heating system, and fill the system with purified water, open the cycle pump for cycle, use The heating furnace heats the cleaning agent to 90℃±5℃. Switch the system valves so that all parts in the system can be cleaned. The valve switching should be done every hour. All cleaning time is no less than 24 hours. (If more valves are switched, the cleaning time will be longer).　　Water washing: Fill the system with clean water, open the cycle pump to cycle, use the heating furnace to raise the water temperature to 90℃±5℃, switch the relevant valves in the system, so that all parts of the system can be cycled. Rinse the system. After three hours, turn on all low-position drain valves of the system to drain the water in the system. Here is an article for you. If you want to know more details, please pay attention to 'Detailed analysis of the three main chemical reactions of heat transfer oil in the heat transfer process'.　　Water washing: Fill the system with clean water again, open the cycle pump to cycle, 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 get cycle. Rinse the system. After three hours, turn on all low-position drain valves of the system to drain the water in the system. Washing: Fill the system with clean water, open the cycle pump to cycle, use a heating furnace to raise the water temperature to 90℃±5℃, rinse the system, three hours later, turn on all the low-position drain valves of the system, and discharge Water in the system. The pH value of the measured water is close to 7, and the discharge is completed. After the discharge is completed, the residual water in the system can be purged with compressed air according to the premise until the discharge stops.　　What are the adverse consequences caused by improper cleaning　　The first thing to talk about is water washing. The earliest period of water washing heat transfer oil system appeared, which can be traced back to the 1990s. Due to people’s ignorance of environmental protection and the backward technology level, water-based cleaning agents have once become mainstream cleaning products, but companies that have used water-washing heat transfer oil equipment know that the cleaning of boiler diesel burners is not very thorough, and Fortunately, after a long period of shutdown and a long period of dehydration. In many cases, the hard coking water-based cleaning agent in the boiler diesel combustion engine coil does not play any role at all. At the same time, a large amount of waste water is difficult to discharge in the system, which leads to the easy emulsification of the heat transfer oil when new oil is added. , Thereby reducing the service life of the heat transfer oil. Although the traditional solvent cleaning agent cleans thoroughly but the price is too high, it is often not easy to accept. However, some cleaning companies have developed many solvent cleaning products that are reused many times. Although the cost of single cleaning is lower, it is not conducive to heat transfer oil. Life. Because the heat-conducting oil of many companies is mixed in the solvent cleaning agent that is repeated many times, long-term mixing will easily affect the new oil due to the different brand of heat-conducting oil or the production process. This is why the heat-conducting oil should be used when using it. Matching experiment. Technical principle of thermal oil cleaning agent ① Two-step technique of alkaline washing and acid cleaning: Principle: The alkaline water-based high-efficiency oil stain cleaning agent has an excellent effect on the treatment of oily medium temperature carbon deposits, but there is still dense graphitization on the inner wall of the specimen after treatment The high-temperature carbon deposit layer must be removed by further pickling to prevent the residual carbon layer from affecting the quality and heat transfer of the heat transfer oil. ②Dissolving and cleaning method technology: Principle: Because coke scale is a kind of mixed dirt with organic matter as the main component, the adhesion to the metal surface is mainly the physical adsorption of van der Waals force. The 'dissolving scrubbing method' is adopted to dissolve the tar In the organic solvent, it is naturally removed as the organic matter is dissolved.　　③Composite cleaning agent cleaning method technology: This cleaning agent can effectively crush and disperse carbon deposits and efficiently dissolve organic hydrocarbons. The technology is simple and does not corrode the equipment. However, this method will cause secondary pollution and must be cleaned in the case of parking, affecting production.　　④Organic additive cleaning method technology: just add the additive of the heat-conducting oil furnace light oil burner cleaning agent to the running heat-conducting oil to make the carbon deposits fall off and then clear the filter to remove the oil residue. Principle: This additive uses a similar principle of compatibility to elute tar dirt or degrade tar dirt to avoid the transformation of heat transfer oil. ! 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