Multi-field joint lubricating oil dehydration and purification device

Abstract

The invention discloses a multi-field joint lubricating oil dehydration and purification device. Lubricating oil is sequentially connected with a primary swirler, a strainer, a secondary swirler and a vacuum tank through pipelines, wherein a pulse electrode is arranged in the secondary swirler, a heater is arranged on a pipeline between the secondary swirler and the vacuum tank, the upper part of the vacuum tank is connected with a vacuum pump through a pipeline, a condenser is arranged on the pipeline for connecting the vacuum tank with the vacuum pump, the bottom of the vacuum tank is connected with an oil drain valve and a nitrogen generator and provided with a backflow pipe, and an oil pump is arranged on the backflow pipe and connected with the oil drain valve through an oil outlet pipe. The multi-field joint lubricating oil dehydration and purification device can be used for thoroughly dehydrating the lubricating oil, realizing deep purification and dehydration, and greatly shortening demulsification time so as to quickly finish the lubricating oil purification treatment and reduce the energy consumption of the oil purification. The multi-field joint lubricating oil dehydration and purification device can be used for removing trace moisture in the lubricating oil, and also can be applied to the dehydration and purification treatment of the lubricating oil with high water content, thus being wide in applicable range.

Description

technical field [0001] The invention relates to the improvement of lubricating oil dehydration technology, in particular to a multi-field combined dehydration and purification device for lubricating oil, which belongs to the technical field of lubricating oil dehydration and purification. Background technique [0002] With the rapid development of the global industrial economy, lubricating oils are widely used in machinery, electric power, transportation, and chemical industries. They are known as the "blood" of modern industry and occupy an important position in the development of the national economy. Due to the influence of factors such as rain, water vapor in a humid environment, and cooling systems, lubricating oil is easily polluted by water during storage, transportation, filling, and use, forming a W / O emulsion. Water in lubricating oil exists in three forms, namely free water, free water and emulsified water. Emulsified water is the most harmful to equipment and dif...

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Problems solved by technology

[0003] Common emulsified oil physical demulsification and dehydration methods include sedimentation method, centrifugation method, vacuum method, adsorption method and coalescence method, etc., but they have the characteristics of low efficiency, high energy consumption, and high equipment maintenance costs, which cannot meet the high efficiency of lubricating oil dehydration and purification. sexual and economic requirements

In terms of oil purification treatment capacity, the processing precision of sedimentation method and centrifugation method is not high, electrostatic method can only treat oil with small water content, and the treatment capacity of filtration method and drying method is very small. These methods have not been obtained in industry. wide application

[0004] At present, in the dehydration and purification treatment of lubricating oil, vacuum decompression treatment is generally used to separate oil and water. There are two outstanding shortcomings in the treatment of emulsified oil by vacuum oil filter: one is high energy consumption, and the other is low efficiency; The advantage of the vacuum oil filter is that it can remove a very small amount of water in the oil, so the effect is better when dealing with transformer oil, and the effect is often poor when dealing with turbine oil, because the water to be treated in transformer oil is often very small (generally It is required that the water content of the transformer oil to be treated before treatment is less than 50PPM), while the water content in the turbine oil is often more

[0005] Therefore, when the water content of the lubricating oil is high, it is difficult for the vacuum oil filter to meet the high efficiency and economical requirements of oil purification.

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