Waste heat cold north district no. 1 furnace hydraulic coupler oil cylinder oil processing

Waste heat cold north district no. 1 furnace hydraulic coupler oiler 2019 - barrel oil processing 12 - 25 Luo Ronggang ( Zenith steel thermal power plant) Phenomenon: on June 5, 2019, no. 1 furnace hydraulic coupler cold oil cylinder external mild oil leakage phenomenon, the ground also has the obvious oil, maintenance staff immediately with oil resistant sealant processing, processing after the cylinder oil leakage. Cold oil found 10 or so, the ground leak increase, disassemble the sealant found at the top of the oil spill has obvious oil leakage, need immediate action. Analysis: lubricating oil ignition at about 200 ℃, temperature in the 6000 - manual arc welding 8000 ℃, the average temperature of molten pool in 1750 ℃ or so, when hot oil system, the risk is higher, improper handling, easy to cause fire, usually the correct approach is now cooled oil is out of the isolation, the empty barrel oil, clean and wash the displacement scavenging, in the process of the hot cylinder in the open environment. Actual site does not have the construction condition, but the cold oil cylinder oil is oil leakage, not a columnar injection, basic control, leakage and cold oil machine in running condition, lubricating oil in the flow state, after cooling water cooling, basic to keep the oil temperature at about 40 ℃. Under the comprehensive consideration, decided to conduct online leak sealing. Processing: 1, the scene view cold oil spill point, and the size of the need to measure the wall plate, ahead of spare parts. Before 2, site construction, cleaning, washing cylinder and oil area. 3, construction, take protective equipment such as fire extinguishers, and make boiler stop accidents such as expected. 4, contact personnel on-site monitoring operation. 5, remind operators to observe fan lubricating oil pressure and oil temperature changes. 6, welding, welding parts in the open environment, and in a timely manner during the welding process with a wiping cloth to wipe qing funnelled oil leakage, don't let the oil leakage and welding parts. 7, after completion of welding, weldments is washed with water, in time it is cooled to room temperature. Conclusion: 1, the oil system of repair welding, hot indeed before construction to ensure the safety of equipment, arrangement of safety measures in advance. 2, collaborative welder to the scene to see the truth in advance, according to the specific situation, decorate construction scheme. 3, specific issue concrete analysis, theory with practice, find out the practical construction scheme.