Overhaul and maintenance of the heat-conducting oil boiler diesel burner

As a new type of environmentally friendly, safe and efficient boiler diesel burner type, the heat transfer oil boiler diesel burner currently supplies heat The market is deeply loved by people. It uses heat transfer oil as the heat carrier, and circulates the carrier through a hot oil pump, thereby transferring heat to the heating equipment. The daily maintenance of the thermal oil boiler diesel combustion engine will have a very positive effect on the safe and stable operation of the boiler diesel combustion engine in the future. So let's briefly explain below. Problems prone to heat conduction oil boiler diesel combustion engine 1. Because some heat conduction oil boiler diesel combustion engine manufacturers have not obtained the boiler diesel combustion engine manufacturing license, they have produced heat conduction oil boiler diesel combustion engine products, and the heat conduction produced The quality performance of oil-boiler and diesel-burning products is not satisfactory. If consumers choose to operate and use the heat-conducting oil boiler diesel burner equipment of poor quality, it is easy to cause some unnecessary safety accidents. 2. If the organic heat carrier of the thermal oil boiler diesel combustion engine deteriorates, it will be extremely easy to cause safety accidents. Once the liquid phase forced circulation heat carrier furnace is deteriorated and aging, it will cause overheating of the heating surface of the heat transfer oil boiler diesel burner and tube burst. If the situation is more serious, it will also cause a fire accident and cause significant economic losses to people. 3. If the circulating pump supporting the heat-conducting oil boiler diesel burner is not suitable, many faults will occur during the operation of the equipment, and it is likely to cause serious damage to the heat-conducting oil boiler diesel burner equipment, which will cause the operation The personal safety of personnel can also pose a serious threat. Therefore, check the circulating pump more to see if the flow of heat transfer oil is smooth. 4. If there is a problem with the flange connection, welding quality or sealing of the thermal oil boiler diesel burner, it will also cause a fire or poisoning accident. Therefore, when we buy a boiler diesel burner, we must check the welding and connection parts to see if there are quality problems and avoid major accidents. The maximum allowable use temperature and the product type test of the heat conduction oil boiler diesel combustion engine overhaul and maintenance standards The maximum allowable use temperature of the organic heat carrier product should be determined according to its thermal stability, and its thermal stability should be in accordance with GB/T23800 'Thermal Stability of Organic Heat Carriers' The method specified in the 'Method of Determination of Sexuality'. The quality of the organic heat carrier product should meet the requirements of GB23971 'Organic Heat Carrier' and pass the product type test. The type test is carried out in accordance with the requirements of the 'Supervision and Management Rules for Water (Medium) Treatment of Boiler Diesel Combustor' (TSG G5001). Selection and use conditions The selection and use of organic heat carrier products meet the requirements of GB25747 'Safety Technical Conditions for Organic Heat Carriers'. Without effective and reliable leak-proof safety measures, the organic heat carrier should not be directly used to heat or cool oxidizing chemicals. The organic heat carrier in use shall be sampled and inspected at least once a year. Mixed use of different organic heat carriers Vapor-phase organic heat carriers with different chemical compositions should not be mixed, gas-phase organic heat carriers should not be mixed with liquid organic heat carriers, and synthetic liquid organic heat carriers should not be mixed with mineral organic heat carriers use. Maximum operating temperature The maximum operating temperature of the organic heat carrier should not be higher than its self-ignition temperature, and at least lower than its maximum allowable use temperature of 100C. For coal-fired boiler diesel burners or boiler diesel burners with an average heat flux density of greater than 0.05MW/m on the radiant heating surface of the furnace, the maximum operating temperature of the organic heat carrier should be lower than its maximum allowable operating temperature of 200C. Maximum allowable liquid film temperature When the maximum allowable use temperature of the organic heat carrier is less than or equal to 3200C, the maximum allowable liquid film temperature should not be higher than the maximum allowable use temperature plus 200C. When the maximum allowable use temperature of the organic heat carrier is higher than 3200C, the maximum allowable liquid film temperature should not be higher than the maximum allowable use temperature plus 300C. The design pressure of the boiler diesel burner and its auxiliary vessels 1. The design calculation pressure of the boiler diesel burner takes the rated working pressure of the boiler diesel burner plus 0.3Mpa, and for the flame-heated boiler diesel burner, the design calculation pressure should not be Less than 1.0Mpa; For electric heating boiler diesel burners and waste (waste) heat boiler diesel burners, the design calculation pressure should not be lower than 0.6Mpa; 2. Minimum design calculations for non-pressure vessels in organic heat carrier systems The pressure should be 0.2Mpa, and the design calculated pressure of the pressure vessel should be at least its rated working pressure plus 0.2Mpa. Working pressure of forced-circulation liquid phase boiler diesel burner using gas-phase organic heat carrier When forced-circulation liquid phase boiler diesel burner uses gas-phase organic heat carrier, its working pressure should be higher than its maximum working temperature plus the corresponding organic heat carrier under the condition of 200C Saturation pressure. The layout of the furnace tube of the diesel burner of the flame heating boiler The layout of the furnace tube of the diesel burner of the flame heating boiler should make the organic heat carrier in the diesel burner of the boiler evenly heated, and there should be no direct flame contact with the heating surface. The maximum heat flux density of the electric heating boiler diesel combustion engine The maximum heat flux density of the metal sheath surface of the electric heating component used in the electric heater generally does not exceed 0.02MW/m2. For the heating components used in the pipeline electric heater, the maximum heat flux density on the surface of the metal sheath can be appropriately increased under the condition of ensuring the safety of low temperature startup. The calculated maximum liquid film temperature of the boiler diesel burner The calculated maximum liquid film temperature of the boiler diesel burner should not exceed the maximum allowable liquid film temperature of the selected organic heat carrier. The manufacturer of the boiler diesel combustion engine shall provide the calculation results of the maximum liquid film temperature and the minimum limit flow rate of the boiler diesel combustion engine in the delivery data of the boiler diesel combustion engine.
Organic heat carrier capacity of natural circulation gas-phase boiler diesel burner. The boiler diesel burner used in the natural circulation gas-phase system should be designed to ensure that the organic heat carrier capacity for evaporation above the minimum liquid level of the drum can meet the system The gas phase space is filled with steam. Pressure test and air-tightness test 1. The fully assembled boiler diesel burner, boiler diesel burner components and the boiler diesel burner after the on-site assembly (installation) should be hydraulically operated at 1.5 times the working pressure (or according to The design stipulates that the gas pressure test shall be carried out; the gas-phase boiler diesel burner adopting the hydraulic test shall also be subjected to the air tightness test according to the working pressure; 2. The gas pressure test and the gas tightness test of the boiler diesel burner shall comply with the 'Fixed Pressure Vessel Safety Technical Supervision' The relevant technical requirements of the Regulations; 3. The hydraulic test should use organic heat carrier or water as the test medium. The gas (pressure) tightness test should be dry, clean air, nitrogen or other inert gases; the organic heat carrier should be used as the test medium. When testing the medium, the air tightness test should be carried out before the hydraulic test; when water is used as the test medium, the water in the equipment should be drained after the hydraulic test is completed and the interior should be blown dry with compressed air. Safety accessories and instrument safety valve settings 1. The natural circulation gas phase system is equipped with at least two full-open spring safety valves without handles. One safety valve is installed above the gas phase space of the boiler diesel combustion engine, and the other safety valve is installed On the heating equipment or the gas supply pipe in the upper part of the system. 2. The flash tank and the condensate tank of the liquid phase forced circulation throttling and decompression evaporation gas system should be equipped with safety valves, and the flash tank with a rated thermal power greater than 1.4MW should be equipped with two safety valves. 3. A bursting disc should be connected in series between the safety valve of the gas-phase system and the boiler diesel burner or pipeline. The discharge capacity of the safety valve and bursting disc should not be less than the rated evaporation of the boiler diesel burner. The bursting disc and the boiler diesel A shut-off valve should be installed on the short pipe connected to the burner or pipeline, and the shut-off valve should be in the locked position when the boiler diesel burner is running. Daily maintenance of heat-conducting oil boiler diesel combustion engine 1. Strengthen maintenance in daily operation a. In daily operation, the operating procedures must be carefully implemented and roving inspections must be performed to avoid excessive heating and local heat load concentration. b Strengthen daily regular self-inspection 2. Clean ash and coke. In order to prevent accidents, the inner wall of the heating surface is cleaned at least once a year. 3. Shut down the furnace for maintenance. Close the valve to reduce the chance of the heat carrier coming into contact with oxygen and clean the dust. When the furnace is shut down for a long time, the coke scale should be removed, the water in the system should be blown dry with compressed air, and all the parts open to the atmosphere should be isolated, and then the expansion tank should be filled with nitrogen to keep the nitrogen pressure in the system at 0.05-0.1MPa.
4. Maintenance of auxiliary equipment and pipeline valves a. Pay attention to the daily maintenance of oil storage tanks, pipelines and valves. b. Filters should be cleaned frequently. c. Circulating oil pumps should be cooled. 5. Maintenance of safety accessories and protection devices. A pressure gauge Maintenance. Check the pressure gauge every shift to observe whether the pointer is jittery, does not move, oil leaks in the gauge, and the surface is blurred. b Pay attention to whether the level gauge leaks. c Check the thermometer regularly. d Weekly test over-pressure alarm and interlocking device, over-temperature alarm and interlock, limit low liquid level alarm and interlock. Keep the control cabinet working normally and accurately. Precautions when using gas-fired thermal oil boiler diesel burner 1. Before using the boiler diesel burner, check whether the coaxial flue is blocked; 2. When the boiler diesel burner is used in winter, be sure to check the boiler diesel burner Take anti-freezing measures; 3. Be sure to prevent gas leakage. During use, the user can ask professional personnel to help check and replace the gas hose once every two years; 4. The water supply temperature of the gas boiler and diesel combustion engine is very high. Setting range, do not turn off when not in use during the day, you can set it at the lowest temperature; 5. The room temperature should not be set too high, generally around 18 degrees Celsius; 6. Under any circumstances, customers should not treat the boiler Diesel combustion engines are disassembled, repaired or changed by themselves; 7. It is strictly forbidden for non-professionals to disassemble and modify the natural gas pipeline; 8. In winter, try to reduce the frequency of opening windows for ventilation. ! If you are interested in diesel combustion engines, please contact us for a quote!