Has anyone ever carried out welding work on storage tanks that hold light oils?

Are you trying to say ‘do nothing or die’?

What does that mean? Can’t understand it. This type of operation is included under special hot work in 5.1.4 of GB30871-2014; I’m not sure what others do in this regard.

This type of special-grade hot work depends on what you are doing. If trachoma occurs somewhere at the top or welding is necessary in that area, and the area that needs to be welded is small, yellow clay, wood shavings, or dough can be used to seal the leaky spot. Afterwards, bolts or clamps can be used to weld a ring around that area, and then flame-retardant material can be filled into the resulting space, which can be secured using steel plates or clamps. Gas detection must be carried out before and after the task. However, it is best to avoid carrying out such tasks online; fire work should only be done after backwashing with tank return water

This post was last edited by ylb913 on 2016-6-26 06:00. It’s not possible to carry out any work on the upper part; however, if water can be injected into the lower part, that might still be feasible. At the bottom of our LPG desulfurization tower, there is an alkaline solution; we have covered that area with fire-resistant enclosures in the past.

If there’s a problem with the gas phase space, definitely no one would dare to make any changes. One of the lightning protection grounding wires for our gasoline tank has broken; according to the specifications, it should be connected at a height of around 300 mm above the ground. If we were to perform tasks such as refilling the tank, cleaning it, cooking it, or installing blind flanges just to repair this one grounding wire, it would result in significant waste of manpower, resources, and money. It’s not that I’m reluctant to part with my possessions; safety comes first, without a doubt. However, according to standards and theories, performing welding work on a tank containing a medium is safe as long as certain conditions are met and appropriate measures are taken. There is then no need to pour in oil, clean the tank, steam it, install blind flanges, and so on.

The last edit to this post was made by slll611 on 2016-6-26 at 16:08. Some people say that the risk lies in carrying out welding work at the bottom of the tank; if there are any loose connections in the tank’s roof, sparks could be generated, which could ignite the oil inside the tank； Some people are also worried that burning through the steel plates could cause a fire ； Some people are also worried that the oil inside the tank might overheat and catch fire

Lightning protection grounding wires are usually galvanized flat steel, right? If they break, holes can be drilled at both ends using a drill; water should be applied while drilling to prevent sparks from being generated. After the holes are drilled, the two ends can be connected using bolts and copper wires, which reduces the risk associated with working with fire significantly.

No work, no death!!!

Another section is on the tank, and the part near the tank wall is broken.