After long-term operation of the air separation plant, when the oxygen generator of the air separation plant is shut down for maintenance and hot work is required for welding, the following aspects shall be paid attention to:
1. If open fire is required in the oxygen generator workshop, it shall be approved by the superior, and the oxygen concentration around the site shall be tested to strengthen fire fighting measures. When the oxygen concentration in the welding site is higher than 23%, welding is not allowed. When the oxygen concentration is lower than 19%, asphyxiation accident shall be prevented;
2. Vessels with air pressure shall not be welded before pressure relief;
3. It is not allowed to repair low temperature vessels without thorough heating to avoid excessive thermal stress or failure to ensure welding quality. In serious cases, if liquid oxygen and gaseous oxygen leak out, it may also cause fire;
4. The whole process of hot work shall be monitored by the safety officer.
The production technology of DEAR air separation plant is mature and standardized to ensure safe production, operation and maintenance, stable and efficient operation. The professional training lecturer of Deer Air Separation Company escorts customers. How to let customers get familiar with the equipment as soon as possible, and how to operate correctly and reasonably is crucial. Comprehensively use the knowledge and experience of engineering technology to ensure that each link is executed in place and handled carefully, so that customers can rest assured and satisfied.
