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The reason of emulsification of turbine lubricating oil and the solution of TYA vacuum oil filter.

2020/1/19??????view:

  1、 The reason of emulsification of lubricating oil in steam turbine system.

  There are three reasons for the emulsification of turbine lubricating oil: water content, emulsifier and high-speed mixing. Water is the main cause of oil emulsification.

  (1) During the operation of steam turbine unit, the main reasons for water inflow in the lubricating oil system of steam turbine are the lax shaft seal, steam leakage of steam seal, poor quality of lubricating oil, and insufficient vacuum degree of bearing box and oil tank. At the same time, the installation and operation of the unit do not meet the requirements of equipment cleanliness, and the presence of dirt and impurities will also affect the quality of turbine lubricating oil.

  (2) The emulsification of turbine lubricating oil and water is also related to the performance of additives in the oil. Most of the antioxidants and antirust agents added in turbine lubricating oil have certain surface active compounds or mixtures. In the molecular structure of these substances, one end has lipophilic non-polar groups, the other end has certain surface active hydrophilic polar groups. Although they are soluble in oil but not in water, the polar groups have a certain affinity to water at a certain speed.

  (3) When the turbine rotates at high speed and the oil and water are stirred to form emulsion, these hydrophilic polar groups have the opportunity to fully match with water. When the affinity is great, it will be combined with the water prison. Because the lipophilic nonpolar group can be dissolved in oil, water and oil can be combined by the action of this substance. Therefore, at this time, water can not be separated from oil, that is, emulsification. If affinity is weak, water and oil can be separated. Therefore, it is required that the additives added to the turbine lubricating oil should ensure and improve its quality, improve its anti emulsification performance, reduce or remove the components with strong hydrophilic performance in the additives, and reach or exceed the anti emulsification performance index of the turbine lubricating oil standard.

  2、 Preventive measures for lubricating oil quality of steam turbine.

  It is very important to ensure the design, manufacture, installation, operation and maintenance of turbine equipment and the quality of turbine lubricating oil, to prevent and eliminate the water inflow of turbine lubricating oil system, and to prevent the emulsification of turbine lubricating oil. Therefore, we should pay attention to the following aspects:

  (1) To ensure the quality of product design and manufacturing. Unreasonable design and product manufacturing do not meet the design requirements, which directly leads to water inflow of turbine lubricating oil system.

  (2) during the operation of the unit, the oil purification device should be regularly put into operation, and the oil and water separation and impurity filtration of the regulating and lubricating oil in the turbo generator unit oil system should be carried out in time. At the same time, during the manufacturing, installation and operation of the oil system components, it is necessary to ensure that the equipment components are clean and sealed. During the major and minor repair, it is necessary to ensure that all components of the oil system are clean. There are no impurities, water and other foreign matters in the system and pipeline. The cleanliness of the components shall meet various cleanliness standards specified by the manufacturer.

  (3) The purchased turbine lubricating oil must meet the technical indexes specified in the national standard gb7596-2000, especially the demulsibility and acid value indexes, and must be guaranteed. At the same time, the turbine lubricating oil shall be sampled and inspected regularly in accordance with the provisions of L-TSA turbine lubricating oil change index SH / t0636-1996, and measures shall be taken in time in case of any problem.

  (4) For emulsified turbine lubricating oil, our factory can also add demulsifier to the oil according to the situation to improve the demulsification resistance of turbine lubricating oil. The demulsifier is used to destroy the emulsified membrane on the oil-water interface, release the water and achieve the purpose of water removal.

  (5) During the overhaul of the unit, the clearance between the shaft seals of the unit shall be strictly controlled to ensure the overhaul cycle of the unit. During the operation of the unit, the operators shall strengthen the adjustment of the leakage of the shaft seal according to the load conditions to prevent water from entering the oil due to the large leakage of the shaft seal.

  (6) during the operation of the unit, the main oil tank should be regularly discharged, and the oil and water separation of the regulating and lubricating oil in the oil system of the turbogenerator set should be carried out in time.

  (7) Equipped with on-line oil purifier for turbine lubricating oil to control the water content in the oil at any time. And ensure that when there is a small amount of water or emulsification in the turbine, it can be restored and oil quality can be restored in time to ensure the normal operation of the turbine unit.

  3、 TYA vacuum oil filter solves the problem of emulsification.

  Avoiding the emulsification of turbine oil is one of the important conditions to ensure the safe operation of turbine. The key to solve the emulsification problem of turbine lubricating oil is to strictly control the product design, manufacturing, installation, operation and maintenance, as well as the quality of turbine lubricating oil.

  TYA series vacuum oil purifier is suitable for dealing with dirty old common turbine oil, lubricating oil, hydraulic oil, etc. which are replaced by various industrial and mining departments. According to the different technical requirements and standards of various equipment oil, the equipment has made corresponding professional configuration for each type of oil. This kind of equipment plays a great role in the purification and regeneration of various industrial hydraulic oil products with pollution and deterioration, prolongs the maintenance cycle and service life of the equipment, and reduces the production cost

  Zhongjing TYA series vacuum oil purifier can effectively remove pollutants such as water, gas and mechanical impurities from oil products, and improve the kinematic viscosity, flash point and emulsification of oil products. It can make the oil quickly recover to the required performance, close to or reach the corresponding standards.

  For more information, please refer to the product catalog and success stories on the company's official website. You need product materials and Videos - please open the contact information - call or add a telephone wechat.

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