重 庆 理 工 大 学毕 业 设 计（论文）英文翻译题目 真空加热式高效净油机设计 二级学院 机械工程学院 专 业 机械设计制造及其自动化班 级 109040202 姓 名 涂成康 学 号 10904020226 指导教师 系 主 任 时 间 2012年2月25日2013年6月14日 Purification of design method and vacuum purifying oil engine lubricating oil1.ForewordTurbine oil (oil) on turbine generator is mainly used for lubrication and cooling speed, etc., for the steam turbine unit long-term operation, due to high pressure steam seal, motor shaft seal and other serious wear, band gap or steam pressure regulating improper, cause on phenomena, and oil cooler leakage, resulting in serious water turbine oil oily, appear murky or emulsified oil, accelerated aging, to produce soaps, colloid and organic and inorganic acid, reduce the stability and lubricating oil. At the same time, water and additive effect of oil could promote the decomposition, cause equipment corrosion. On the other hand, because the system external contaminants through shaft seal and various pore to enter, such as sand, dust, rust, carbon particle, and internalmetal wear particles, oil oxidation products, will also reduce the oil viscosity, anti - foam, destruction of oil film, increasing friction, wear of mechanical equipment, and may cause the speed control system block, failure, cause local overheating and even stuffy car. The formation of sludge pipeline emulsified oil may also deposit in the speed control, circulation system, the operation of oil, can not flow smoothly, no lubrication, cooling speed, good effect. Therefore, the turbine oil is good or bad, directly affect the safe and economic operation of the unit.Transformer oil after several years of operation, due to various reasons, the quality deterioration, oil oxidation, color depth, water, clay, free carbon, acid value, viscosity, mechanical impurities will exceed the standard, the potential danger of transformer. Processing methods commonly used are: power off, stop, change new oil.However, the rapid economic development and energy is very scarce in China, a new oil is obviously not the economy. Therefore, this article will explore the oil processing method, and introduces a high efficiency oil machine apparatus and process.2. Lubricating oil processing methodCurrently the oil regeneration purification method there are 7 ways2.1Gravity settling barrier methodThis method is primarily used to remove large proportion, larger particles of impurities in oil, as well as water intake is very serious in making coarse purification, purification measures must be complemented with other purification methods.2.2Pressure filtration methodThe Act, also known as mechanical filtration. Traditional plate-and-frame type filter, which uses oil pump pressure pressure difference of formation on both sides of filter paper, when waste oil through filter paper, impurities and water filter. But inefficient operations, used dosage in big trouble. High cost breakdown voltage increase is less obvious. Dewatering capacity depends entirely on the degree of dry filter paper, do not bake before throwing, or do not change the filter paper. Filter paper will promptly with the balance of water in the oil State, that is a saturation, even water release to diesel.2.3 Centrifugal separation methodThis method use proportion in waste oil, water impurities in different. Under the centrifugal force produced by the high speed rotation of the oil-water separation, to purify the purpose of impurity. This method is not high, the requirements of water heavy waste turbine oil, hydraulic oil, lubricating oil can be used as a pretreatment, high efficiency. But it can not remove dissolved water purification, and less pressure filter. Only the centrifuge is used as a coarse filter device.2.4Vacuum separation methodIt makes use of oil and water boiling point difference exists, so that the oil atomization or form oil film in vacuum and under certain temperature, the moisture evaporation, removal of water in oil, gas, and filter out impurities. The performance, efficiency of vacuum oil purifier, because the structure of many, each are not identical. High efficiency equipment to a new generation of volume, power consumption is very small is gradually replacing the traditional vacuum oil purifier.2.5Condensation purification methodIt makes use of waste oil flowing through the high pressure (10 40kV) DC electric field, polar molecules such as water, oil, acid components, sludge, size ion polarity material will be charged, polar and incentive, thus using electrostatic attraction electrochemical, making them adsorption and aggregation, off the impurities, and oil pure and is not easy to absorb, under the action of the oil pressure can be forced through the electric field, so that the purpose of the present method but is rarely applied, the purification efficiency is low, high