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Insulation oil vacuum adsorption regeneration comprehensive treatment system and application thereof

A vacuum adsorption and comprehensive treatment technology, applied in the direction of lubricating compositions, etc., can solve the problems of reduced removal efficiency and reduced use efficiency of adsorbents, and achieve the effects of saving power outage time, improving use efficiency, and improving treatment efficiency

Pending Publication Date: 2017-09-29
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the oil is directly adsorbed, impurities such as moisture in the oil and small molecule volatile substances will preferentially occupy the "active sites" of the adsorbent, which will greatly reduce the use efficiency of the adsorbent, resulting in corrosive sulfur, dissolved copper, The removal efficiency of substances such as aging products is reduced

Method used

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  • Insulation oil vacuum adsorption regeneration comprehensive treatment system and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Carried out insulating oil regeneration treatment for a 110kV TBEA SFZ8-31500 / 110 transformer. According to on-site records, the oil weighs 16.3 tons, the total corrosive sulfur is 21.3mg / kg, the dissolved copper content is 1.8mg / kg, and the dielectric loss of the oil is 2.4 %,

[0073] The insulating oil to be treated is input from the oil inlet 1, flows through the primary filter tank 2, and is heated to 80°C by the heater 7, and the heated oil is input into the vacuum separator 8 for gas-liquid separation; the oil after gas-liquid separation The product is successively absorbed by the fine filter 17, the parallel regenerative filter, and the fine filter 18; finally, it flows back to the insulating oil equipment through the oil outlet 22.

[0074] The pore diameter of the filled filter element of the primary filter tank 2 is 20-100 μm.

[0075] The degree of vacuum in the vacuum separator 8 is less than or equal to 100Pa.

[0076] The pore size of the precision filt...

Embodiment 2

[0082] Compared with Example 1, the difference is that the heater 7 heats up to 50°C. After 3 days of circulation, the total corrosive sulfur content is 18.5mg / kg, the dissolved copper content is 0.6mg / kg, and the oil dielectric loss is 0.8%.

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Abstract

The invention discloses an insulation oil vacuum adsorption regeneration comprehensive treatment system. The insulation oil vacuum adsorption regeneration comprehensive treatment system is characterized in that the output end of an oil inlet is communicated and connected with the input end of a primary filter; the output end of the primary filter is communicated and connected with the input end of a heater; the output end of the heater is communicated and connected with the input end of a vacuum separator; the gas output end of the vacuum separator is communicated and connected with the input end of a steam and water separator; the output end of the steam and water separator is communicated and connected with the input end of a Roots pump; the output end of the Roots pump is communicated and connected with the input end of a vacuum pump; the oil output end of the vacuum separator is connected with the input end of a fine filter; the output end of the fine filter is connected with the input ends of regeneration filters which are connected in parallel; the output end of each regeneration filter is communicated and connected with the lower input end of the fine filter; the output end of the fine filter is communicated and connected with an oil outlet. The insulation oil vacuum adsorption regeneration comprehensive treatment system has the advantages that the harmful matters of corrosive sulfur, dissolved copper, aged product and the like in the insulation oil can be removed, the site treatment efficiency of transformer oil is improved, and the safe and stable running of a transformer is powerfully guaranteed.

Description

technical field [0001] The invention belongs to the technical field of oil purification treatment, and in particular relates to a novel vacuum adsorption regeneration comprehensive treatment device for insulating oil. Background technique [0002] Some insulating oil products have a small amount of corrosive sulfides due to their crude oil components and refining processes, mainly mercaptans, dibenzyl disulfides, and sulfoxides. These sulfides often corrode the copper coil during the operation of the transformer, and form cuprous sulfide on the insulating paper, resulting in a decrease in the insulation performance of the insulating paper, which leads to breakdown of the transformer insulation layer and damage to the transformer. For example, Guangdong Power Grid, East China Power Grid, and Fujian Power Grid have all found transformer failures of varying degrees caused by corrosive sulfur. During the operation of the equipment, the insulating oil will also react with the co...

Claims

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Application Information

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IPC IPC(8): C10M175/00
CPCC10M175/00C10M175/0025
Inventor 万涛周舟李臻吴俊杰周卫华龚尚昆钱晖
Owner STATE GRID CORP OF CHINA
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