The handling method for oil leaks in transformer radiators depends on the severity of the leak and the site conditions. Minor leaks can be temporarily sealed with sealant, while severe leaks require welding repair.
Here are some common methods for handling oil leaks in transformer radiators:
On-oil welding repair (suitable for more severe leaks)
Under safe conditions, on-oil welding can be performed on the leaking area. Precautions during operation:
Clean the area to be welded before welding, preferably with alkaline water and then dry;
Welding must be performed below the oil level to prevent fire;
Use intermittent spot welding, controlling the arc time for each weld within 10-20 seconds to avoid prolonged continuous welding that could lead to penetration or fire risks;
If conditions permit, it is recommended to create negative pressure by vacuuming the oil before welding to improve safety.
Use sealant or leak-stopping agent (for minor leaks)
For oil seepage caused by pinholes or tiny cracks, use an oil-water compatible sealant or titanium steel adhesive for quick sealing:
First, clean the oil stains from the leak point;
Apply a high-performance sealing material (such as an oil-resistant, high-temperature resistant repair agent), which will provide a long-term seal after curing.
Emergency handling and protective measures
If immediate repair is not possible, temporarily plug the gaps with wire or use riveting to prevent the leak from spreading;
When welding near vulnerable parts such as rubber seals, take cooling protection measures to prevent heat damage.
Prevention recommendations
Regularly inspect the radiator fins for impacts, deformation, or corrosion;
Avoid external impacts to the radiator fins during transportation and installation;
Select high-quality radiator components to reduce the risk of leaks caused by material defects.
