1. Oil leakage at welding
There are defects such as pinholes and sand holes in the welds. The oil-immersed transformer is covered by welding and paint when leaving the factory. The hidden trouble will be exposed after operation. For leakage phenomenon already appeared, find leakage point first, cannot leave out. In view of the serious leakage site can be used metal tools such as flat shovel or pointed punch to riveted leakage point, control leakage amount after cleaning up the treatment surface, the current use of polymer composites for curing, after curing can achieve long-term treatment of leakage.
2. Oil leakage of sealing parts
Poor sealing. Usually the sealing of the box edge and the box cover is sealed with oil resistant rubber rod or rubber gasket. Some of them are tied with plastic bands, some of them directly press the two ends together. As a result of rolling during installation, the joints cannot be pressed down, which will not seal the connection, but still leak oil. The joint can be bonded with fushi blue material to form a whole joint, and the oil leakage phenomenon is greatly controlled. If the operation is convenient, the metal shell can be glued at the same time to achieve the purpose of leakage control.
3. Oil leakage at flange joints
Flange surface is uneven, fastening bolts loose, installation process is not correct, so that bolts fastening bad, and leakage oil. After fastening the loose bolts, seal the flange and handle the bolts that may leak, so as to achieve complete control. Fastening the loose bolts must be operated strictly according to the operation process.
4. Oil leakage for bolts or pipe threads
Rough processing at factory, poor sealing, baoding oil immersed transformer seal for a period of time after oil leakage fault. The sealing of bolts is treated with high polymer material to control leakage. Another method is to screw out the bolts (nuts), apply the phocian blue mold release agent on the surface, and then tighten the material on the surface. After curing, the treatment can be achieved.
5. Oil leakage of cast iron parts
Oil leakage is mainly caused by sand holes and cracks in cast iron. In view of crack leakage, the best way to eliminate stress and avoid extension is to drill the crack check hole. Treatment can be according to the crack situation, in the leakage point into lead wire or riveted with a hammer. Then wash the leakage point with acetone and seal it with the material. Casting sand holes can be directly sealed with materials.
6. The radiator leaks oil
The heat dissipation pipe of the radiator is usually made by stamping on the bending part and welding part of the heat dissipation pipe after being compressed by the welded pipe. This is because when the heat dissipation pipe is pressed, the outer wall of the pipe is subject to tension, and its inner wall is subject to pressure and there is residual stress. The upper and lower plate valve (butterfly valve) of radiator will be closed, so that the oil in the radiator and box oil partition, reduce pressure and leakage. Suitable surface treatment should be carried out after determining the leakage site, and sealing treatment should be conducted with phocian blue material.
7. Porcelain bottle and glass oil mark leakage oil
Usually due to improper installation or seal failure. Macromolecular composite materials can be good metal, ceramics, glass and other materials to adhesive, thus to achieve the basic treatment of oil leakage.
Baoding zhongyi electric material manufacturing co., LTD is a professional manufacturer of transformer for baoding transformer factory. It has professional production equipment, hoisting, tooling and testing equipment, and has established a perfect quality management system.
Main products of the company: baoding dry type transformer, baoding box type transformer, baoding oil immersed transformer, baoding high and low voltage complete sets of equipment. I companies to follow "detail decides success or failure, honesty molded the future" of the enterprise purpose, adhere to "quality measuring market, seek development by innovation, to management for efficiency" business philosophy, to make my company's products are widely used in power plant, chemical, construction, mining, metallurgy, rail transportation and other industries, to meet the needs of various users, my company rely on superior product quality, thoughtful service, won the trust of our customers.
