Transformer oil leakage problem how to deal with
1, choose a good seal material Transformer maintenance and treatment of leakage, the choice should be high temperature, oil resistance and good sealing. The most commonly used sealing material in the domestic transformer industry is nitrile rubber. Its oil resistance mainly depends on the acrylonitrile content in nitrile rubber. The higher the acrylonitrile content, the better the oil resistance. The harder the hardness, the less likely to deform. The general situation should choose Shore hardness of 70 to 80 between the nitrile rubber. Gas seal performance evaluation of seals, gaskets should generally do the aging test and transformer oil compatibility test, soaked in hot oil at 120 ℃ 168h, and then measure the rate of change of weight, volume and hardness, choose its Deformation is not large, in line with the standard seals. 2, choose the high quality butterfly valve Butterfly valve selection ZF80-type vacuum eccentric butterfly valve. Compared with the ordinary butterfly valve, the vacuum eccentric butterfly valve in the mechanical strength, surface finish has been greatly improved, but the product also has one of the biggest advantages is the interface with the transformer flange double seal, so to eliminate Transformer interface leakage of oil problems. 3, the use of welding plugging For the castings left by the pores, trachoma, weld joints, Weld appeared Weld, desoldering, cracks who can be plugged with electric welding. Leakage should be pinpointed before the plugging point, the smaller the leakage point can be directly welded joints will leak dead; larger leakage should be filled asbestos rope or metal filler, and then around the welding, and then using small welding rod High current fast arc repair welding. 4, standard seal replacement process For different models and different capacity of the transformer, whether it is flanged or threaded connection, the replacement of the seal must be cleared before the connection surface of the dust and rust, the seal clean, the seal coated with sealant (Generally 609 polymer liquid sealant), until the sealant is dried for a period of time after the solvent is volatilized, the flange and the screw are fastened. 5, improve the level of installation technology, to prevent leakage caused by improper installation methods Flange interface is not flat or distortion of the first calibration interface, the wrong can not be corrected serious correction can be cut off the flange, you must ensure that the parallel interface. Seal installation of the amount of compression of its thickness of about 1/3 is appropriate. 6, fast sealing plugging plugging plugging This method is used for transformer leakage, drip leakage situation, the transformer heat pipe wall is thin, and not suitable for welding leakage plugging method to deal with this method can be plugged. Use plugging glue stick plugging, you must completely remove the plugging part of the oil, paint, oxides, so that the metal exposed qualities. And then adjust the ratio of plugging glue, leakage plugging site, until it does not leak. PET Thermal Lamination Film,Glossy Thermal Laminating Film,Matte Thermal Laminating Film,Matte Thermal Lamination Film GR (SHANDONG) NEW MATERIAL CO., LTD , https://www.grmaterial-film.com