The 0950553 centrifuge is a cylinder-stage centrifugal air compressor produced by Ingersoll Rand of the United States. The grade rotors are arranged in a positive angle around the main shaft of the speed-increasing drive shaft. The unit has the advantages of sensitive and stable operation. The unit is the main air supply equipment for the air compressor of the refinery. It is a special protection equipment. After operation, the operating indexes are relatively normal, and the normal operating pressure is about 0.6. The oil separation and cracking unit of the museum is in normal operation. The instrument operation requires that the instrument air pressure is not lower than 0.4 legs, and the system air pressure is increased from 0.4 to 0.5. This means that the outlet force of the machine must be reached. 0.650.680 can meet the requirements. During operation, the unit-level operation is restarted by 0.481, and the high-level vibration alarm signal still appears, so it has to be manually stopped. = Demolition found that the rotor blades of the grades have direct causes of different degrees of vibration over-standard interlocking self-protection shutdown. After analysis, we believe that the partial burning of the bearing bush is that the initial running state does not reach full load, and the bearing value is the average bearing pressure; it is the circumferential speed of the journal, that is, the relative sliding speed between the working faces is not large, and the bearing temperature rises normally. The lubricating oil is not carbonized and deteriorated. After the operation is adjusted to the full load state, the value of the bearing is proportional to the load and the rotational speed. The heat generated by the bearing in the bearing is proportional to the value of the bearing, so the bearing is made. The temperature of the frictional secondary surface gradually increases, the viscosity of the lubricating oil gradually becomes smaller, the strength of the oil film supporting the load is gradually reduced, and the friction is gradually increased. The heat generated by the friction increases the temperature rise of the bearing bush, and finally causes the lubricating oil to rub in the bearing bush. Carbonization of the secondary side causes partial burning of the bearing bush. Because the compressor speed is high, after the shaft is partially burnt, the unit will be interlocked and self-protected due to excessive vibration, which avoids the progress of the bearing bush. When the unit is put into use, the special synthetic lubricant provided by the manufacturer should be used. 1 gold technical oil, belonging to the type of synthetic oil, but because of the high price, it is decided to use 8 people 32 turbine oil as a mineral oil type as a lubricating oil. Ordinary turbine oil is usually caused by the following basic aspects of the basic mineral oil and the appropriate amount of viscosity. The thermal oxidation stability of oil is poor. Because the base oil of turbine oil is mineral oil, it is composed of various hydrocarbon compounds. Hydrocarbon compounds include saturated hydrocarbons and unsaturated hydrocarbons. The chemical properties of saturated hydrocarbons are relatively stable, not saturated. Hydrocarbons are mainly aromatic hydrocarbons. Due to their unsaturation, they are easily oxidized and deteriorated. In addition, the air release of oil is poor. Therefore, when the turbine oil is in contact with the air in the air compressor, it is under the action of constant temperature and oxygen. The oil is oxidatively dehydrogenated and degraded. It is proved that the oil is very slowly oxidized at normal temperature, but when the oil temperature is greater than 50 ft, especially when there is catalysis, the oil will oxidize dehydrogenation at a faster rate. Among the metals that can catalyze the dehydrogenation of oil, copper is the most typical one. The tube bundle of the oil cooler of the unit is copper, and the copper oxide can catalyze the oxidative dehydrogenation rate of the oil, along with the temperature of the shaft. This gradually increases the carbonization of the oil due to oxidative dehydrogenation. The oxidative deterioration of the oil will gradually increase the viscosity of the oil, and the fluidity will deteriorate. At the same time, precipitated colloid and asphaltene will be produced. These substances will deposit on the bearing, which will deteriorate the heat dissipation effect, block the oil passage, and increase the friction and wear. In the end, the bearing burnt tile accident occurred. Although phenolic antioxidants have been added to the turmeric 32 turbine oil, the oxidation stability of the oil is poor due to its short oxidation life, narrow temperature range and high susceptibility to oxidation of sulfur compounds in the oil. The friction coefficient of oil is large, and the heat-dissipation performance is poor. Because the depth of refining of the base oil is not high, and the added additives are few in variety and the performance is not high, the friction coefficient of common turbine oil is large, and the heat-dissipation performance is poor. When the friction factor is large, the friction generated will increase, and the frictional heat of the conversion will increase accordingly. The heat dissipation performance of the viscosity is poor, so that the lubricant can not timely heat the heat generated by the high-load high-speed compressor bearing friction pair. Walking, the temperature of the lubricating oil is gradually increased, which accelerates the rate of carbonization and deterioration of the lubricating oil due to oxidative dehydrogenation. Oil extreme pressure wear resistance and load resistance is poor. The random data of the compressor requires that the lubrication of the compressor system should use synthetic lubricant. The lubricant should have unique oxidation stability, contain antifoaming agent, no inorganic acid or The base, when mixed with air and water at the operating temperature, has no tendency to permanently emulsifie and a minimum tendency to oxidize or slag. Unlike ordinary mineral lubricating oils, synthetic lubricants are made by chemical synthesis using chemical raw materials. Synthetic lubricants have many advantages over mineral lubricating oils, have good oxidation stability, and have good viscosity-temperature performance. It has a wide temperature range, high viscosity index, low friction factor under high load, better anti-wear, anti-foam and foam resistance, and good adaptability. It can adapt to high load and high speed compression. The need for machine lubrication, long-term use can improve equipment utilization and reduce maintenance costs. In addition, the use of synthetic lubricants can greatly reduce the carbonization and deterioration of oil, ensure the safe operation of the compressor, reduce the occurrence of faults, and extend the oil change cycle. The special synthetic lubricant is an ester synthetic oil, and the combination of a phenol type and an arylamine type antioxidant makes the oxidation stability better. 132 Turbine oil contains anti-oxidant anti-rust agent anti-foam and gold, passivation agent and other additives, and 1 special synthetic lubricant also added anti-loading additive oil agent anti-wear agent and extreme pressure agent detergent dispersant detergent High-efficiency additives such as dispersants, the following acts: The oily agent consists of molecules with strong polarity, which can increase the adsorption and wedging ability of the lubricating oil on the opposite side, ensure the strength of the oil film, and prevent the oil film from rupturing. The anti-wear agent forms a protective film of the secondary compound on the friction surface to prevent abrasion. The extreme pressure agent mainly contains 30 kinds of organic polar compounds, and the chemical reaction film formed by the reaction of the compound with the metal can prevent the carbonization of the oil in the extreme pressure lubrication state or the abrasion of the cleaning agent to remove the coke generated during the high load operation of the compressor. And triggering substances. The disintegrating agent suspends the coke and sludge. In view of the high load capacity of the former unit, ordinary mineral lubricants have been suitable, and it is the best choice to use synthetic lubricants for compressors or domestic synthetic lubrication. Replace the bearings of the stage rotor. 1.132 Turbine oil. After the overhaul, the vibrations at all levels are normal. The compressors that are introduced into the system 1 and imported from abroad are more demanding on the lubricating oil. When selecting the lubricating oil, we must pay attention to the requirements of the quality and performance of the lubricating oil in the random data. Synthetic lubricants should be used when ordinary mineral lubricants do not meet their requirements. The use of synthetic lubricants not only prolongs the service life of the equipment, reduces energy consumption, but also reduces equipment downtime and maintenance costs, reduces operating costs of the unit, and ensures stable and long-term operation of the unit. Although synthetic lubricants are more expensive than ordinary mineral lubricants, they are cost-effective in terms of energy efficiency and overall economic efficiency. Lin Ruyi. Turbine oil river. Beijing Hydrocarbon Processing Press, 1989. Yan Zhiguang. Synthetic lubricant PCT. Beijing China Petrochemical Press, Shuguang.泯滑æ‘料泯滑技术1.1. Beijing 凼一化 I believe everyone is not unfamiliar with Ebike Motors. 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