Kaifeng Cryogenic air separation unit Factory

During the operation of small air separation equipment, the reasons why the liquid enters into the heat exchanger are: 1) during the start-up stage, the valve of the distillation column is closed and the pressure-reducing speed is too slow, and the liquid oxygen level is too full, which makes the liquid enter into the heat exchanger. The symbol at this time is that the pointer of the pressure gauge of the upper tower fluctuates, the oxygen flow meter beats badly, and the temperature of T3 drops, with which the high and middle pressure automatically drops. When encountering this situation, the valve can be shut down and the pressure-down speed can be increased appropriately, and the large section-1 valve can be opened to increase the air flow through the second heat exchanger. And part of liquid oxygen can be discharged properly. When closing the small air, liquid nitrogen throttle or lowering pressure, it is normal for medium pressure to slightly rise (about 0.05MPa rise every 1 hou...

The technical maintenance of power equipment includes: (l) daily spot inspection and round inspection by the operating personnel of power station according to the specified time, route, project and requirements, make use of human senses or simple instruments and meters to test and inspect the equipment, observe, record the running condition of the equipment and the intact condition of the safety facilities, and find out the defects and hidden dangers of the air separation equipment in time, and take corresponding maintenance measures to ensure the normal operation of power equipment. In daily spot inspection and round inspection, for the new equipment which has just been put into operation, and the equipment which has restored operation after major accidents occur, the equipment operating under severe weather conditions (such as strong wind, thunder, rain, hailstones, snow, frost, fog, etc.) is regarded as the key inspection content. As for the power equipment (such as the power dis...