Vacuum pressure impregnation system and operation method

Abstract

The invention relates to the field of vacuum equipment, in particular to a vacuum pressure impregnation system and an operation method. An impregnation tank is internally provided with a tray, workpieces are placed on the tray, and the impregnation tank is externally connected with an impregnation tank evacuation system and an impregnation tank pressurizing system through pipelines; the outer layer of a liquid storage tank is provided with a liquid storage tank temperature control layer, the liquid storage tank is externally connected with a liquid storage tank evacuation system and internallyprovided with impregnation liquid and stirring anchors, and the top of the liquid storage tank is provided with a stirring motor connected with the inner stirring anchors; and the bottom of the impregnation tank communicates with the bottom of the liquid storage tank through a liquid conveying and returning pipeline, the liquid conveying and returning pipeline is connected with a liquid conveyingpipeline and a liquid returning pipeline in parallel, the liquid conveying pipeline is provided with a liquid conveying valve and a liquid conveying filter, and the liquid returning pipeline is provided with a liquid returning valve and a liquid returning filter. According to the vacuum pressure impregnation system and the operation method, bidirectional precision filtering of the impregnation liquid in the liquid conveying and returning processes is achieved during product impregnation, the impregnation liquid is stored in the liquid storage tank at the constant temperature in a vacuum sealing mode and stirred regularly, the quality performance of the impregnation liquid is ensured, and the replacement cycle of the impregnation liquid is prolonged.

Description

technical field [0001] The invention relates to the field of vacuum equipment, in particular to a vacuum pressure impregnation system and an operation method. Background technique [0002] Vacuum pressure impregnation equipment (VPI) is widely used in the production of high-voltage motors, test transformers, power capacitors, high-voltage cables, etc., and is the key equipment to improve the insulation performance of such products. During use, impurities are easily introduced during the impregnation process, resulting in the impregnation liquid not being able to fully immerse into the gaps on the surface of the workpiece, resulting in poor insulation performance of the manufactured product, improper storage of the impregnation liquid in the liquid storage tank, deterioration and denaturation, affecting product quality, and Frequent replacement of the impregnating liquid results in increased production costs. Therefore, there is an urgent need to develop a vacuum pressure im...

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Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a vacuum pressure impregnation system and operation method, which solves the gaps in the prior art that impurities are easily introduced during the impregnation process of the impregnation liquid, resulting in the impregnation liquid not being able to fully immerse the surface of the workpiece. Manufacturing The insulation performance of the products is not good, etc.

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