How to identify deposits in heat transfer oil?

Identification of deposits in thermal oil boiler diesel burner 1) Silicon-This is a very hard deposit, very brittle, like porcelain, insoluble in hydrochloric acid. 2) Sulfates-Sulfates are harder and more brittle, and acid will not foam them. 3) Iron-This is black, usually magnetic, and soluble in hot acid. 4) Phosphate-The sludge that is easily removed by the thermal oil boiler diesel burner needs to be treated with phosphate water, usually soft, brown or gray deposits. 5) Carbonate-Dissolved calcium bicarbonate and magnesium bicarbonate decompose at high temperature in the boiler diesel burner, releasing carbon dioxide and forming insoluble carbonate. Carbon dioxide bubbles are formed when the acid solution drips onto the carbonate deposits. Clean technology If your heat transfer oil boiler diesel burner is used for a long time or the selected heat transfer oil is not good or improperly used, coking and carbon deposits will block the pipes and heating surfaces, reduce heat transfer efficiency, increase energy consumption, and finally it is difficult to meet Production demand. Heat transfer oil boiler diesel combustion engine oil carbon scale cleaning technology First of all, the heat transfer oil boiler diesel burner is quickly using the heat transfer oil boiler diesel burner (heat medium boiler diesel burner) is a kind of organic heat medium oil as heat transfer muon boiler diesel combustion Due to the safety and efficiency of petroleum, chemical, printing and dyeing, food, etc., the machine can obtain a higher working temperature under a lower working pressure. Chemical fiber, plastics, coatings, building materials and other industrial enterprises quickly spread and use. Problems existing in the use of heat-conducting oil boiler diesel burner Problem 1: Condensation of heat-conducting oil easily makes the heat transfer area of ​​boiler diesel burner coking heat-conducting oil prone to thermal cracking and polymerization chemical reactions after high temperature heating, which reduces oil quality. For example, the heat transfer oil gel is thick, the carbon residue and acid value exceed the standard, and the coke crystals precipitate and deposit, causing the coking oil carbon scale in the heat transfer zone of the boiler diesel burner. Question 2: Coke fouling in the heat transfer area will increase energy consumption and cause fire accidents. The accumulation of oil coke fouling on the heat transfer tube wall of the heat transfer oil boiler diesel burner not only greatly reduces the heat transfer efficiency, increases the fuel cost, but also affects the downstream The temperature of the production process. Severely lead to overheating of the heat transfer wall, cracks in the pipe wall, corrosion and pipeline explosion, and major safety accidents such as fire and casualties caused by heat conduction oil leakage. Heat transfer oil coke resistance and anti-scaling technology First of all, the deterioration of petroleum accelerates the carbon coking of boiler diesel burners. In the process of using heat transfer oil boiler diesel burners, the chemical components of heat transfer oil are prone to high-temperature oxidation, cracking decomposition and thermal condensation and other chemical reactions , Make the grease gel. The coke particles produced by polycondensation greatly increase the carbon residual value of the heat transfer oil and form coke scale on the heat transfer surface. The scale of oil and carbon endangers the safe operation of boiler diesel burners. The carbon scale formed by the thermal oil product oil coke not only greatly reduces the heat transfer efficiency of the thermal oil boiler diesel burner, but also greatly increases the energy consumption cost, and it also leads to diesel combustion in the thermal oil boiler. The machine-corrosive metal corrodes and scales at high temperatures, the furnace tube metal is damaged by cracks or corroded holes, and the furnace tube can be burned in severe cases. The leakage of heat transfer oil may cause major accidents such as fire and human life. Matters needing attention 1. For the oil and gas heat carrier boiler diesel burner using heat transfer oil as the heat carrier, the system should be equipped with an expansion tank, a water storage tank, safety components, measuring instruments and control devices. 2. When the heat transfer oil is put into use, start the circulating oil pump during the running phase, and start ignition and heating after running for half an hour. When using for the first time, the temperature should rise slowly, about 20℃ per hour. When the temperature rises to 180~200℃, the temperature should be kept for a period of time before normal use. 3. When using, check carefully and strictly prevent the leakage of water, acid, alkali and low boiling point substances into the use system. The system should be equipped with a filter device to prevent all kinds of debris from entering and to ensure the purity of the oil. 4. After six months of use, oil analysis should be performed. If poor heat transfer or other abnormal conditions are found after long-term use, the oil should be analyzed, added or replaced according to the analysis results. Standard dosage: basic carbon must not be greater than 1.0%, acid value must not be greater than 0.5mgK(OH)/g, ignition point change must not be less than 20%, viscosity change must not be greater than 10%, and the new oil should be replaced. 5. In order to ensure the normal service life and heat conduction effect of heat transfer oil, it is strictly prohibited to use over temperature. The design and installation of the heating system of the heat-conducting oil boiler diesel burner shall strictly follow the design rules of the heat-conducting oil boiler diesel burner formulated by the relevant national departments to ensure the safe operation of the system. ! If you are interested in diesel combustion engines, please contact us for a quote!