Slotting operation
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Key points for tank entry operations: :) ① Thorough isolation must be ensured when performing tasks such as inserting blind flanges and removing pipelines； ②Confirm and monitor the concentrations of oxygen, flammable gases, and toxic gases before entering the tank ； ③Oxygen concentration monitoring must be carried out in strict accordance with the established rules ； ④Working in the tank must be carried out under supervision; it is absolutely forbidden to enter the tank alone ； ⑤Do not access the maintenance hatch while it is in operation.
This post was last edited by jst101 on 2011-6-16 at 16:01. Hehe, a few additional points: 1. If there is stirring inside the tank, the power supply must be turned off. 2. Wear a safety belt when entering the tank, with the safety rope extending outside the tank; in case of need, an attendant can pull the person inside out. 3. If there is sufficient oxygen in the tank, it’s best to wear a gas mask, and an autonomous breathing apparatus would be even better
Reply to 2# jst101: Yes, okay. Thank you!
Loading into the tank: 1. Ensure that all materials in the tank have been completely removed. 2. Perform nitrogen purging to replace the air, ensuring that all toxic and harmful substances are removed. 3. Compressed air is introduced into the tank for displacement. 4. Perform energy isolation (including the insertion of blind flanges, as well as the isolation of other forms of energy such as electrical and mechanical energy). 5. Issue work permits and prepare tools and materials. 6. Conduct gas testing inside the tank (test for oxygen content, combustible gas content, and toxic gas content). 7. Enter the tank to work (when working inside the tank, two supervisors must be present outside to oversee the operation; a list of tools to be used should be filled out to prevent tools from falling into the tank. In case of toxic substances in the tank, full-body protective clothing and air-supplied respirators are necessary, and safety ropes are essential as well). ) 8. When the downtime in the tank exceeds 30 minutes, a gas detection must be performed again.
Working inside a tank actually falls under the category of work in confined spaces. As long as the procedures specified in the safety regulations for working in confined spaces are followed strictly and a permit for such work is obtained, no safety issues should arise. There are many safety regulations available; you can look them up online.