The use of all equipment has certain safety risks, and the use of steam generators is no exception. Therefore, we must take certain maintenance and safety precautions to ensure that the use and performance of the equipment can be fully utilized and reasonably Increase the useful life.
1. Prevent excessive steam intake into the steam generator: When adjusting the reheater valve, the turbine generator side should invest in opening equipment and tighten the check door of the high-pressure cylinder exhaust pipe to prevent the door from not closing tightly and causing heating. Too much steam is entering the furnace.
2. Avoid overheating and overpressure: During the adjustment period of the steam boiler safety valve, the ignition adjustment should be strengthened to avoid overpressure accidents; when the power switch is bypassed and the refueling nozzle is switched on and off, the working pressure must be stable and the bypass adjustment standards must be ensured. Yes: the minimum opening degree on the high side ensures that the reheater does not overheat, and the minimum opening degree on the low side ensures that the reheater does not overpressure; in order to avoid accidental overpressure in the gas steam boiler during the valve adjustment process, PCV (i.e. magnetic induction release valve) The manual power switch should be ensured to be reliable.
3. Avoid uneven bearing capacity of the seismic supports: During the process of temperature increase and pressure change, send full-time personnel to inspect the expansion and bearing capacity of the anti-seismic supports. It is found that the bearing capacity of the anti-seismic supports is obviously uneven, or there are obvious abnormalities (such as vibrations) relative to the equipment. large), should be adjusted immediately.
4. Prevent steam leakage: Strengthen on-site inspections and pay attention to check the sealing of welds, hand holes, manholes and flanges of the steam generator.
5. Frequently asked questions about on-site safety: The adjustment location lighting should be sufficient and the road surface should be smooth to avoid injuries caused by steam spraying out after the valve is moved. Unrelated personnel are not allowed to stay nearby; there should be a reliable and convenient communication system to maintain the rotary kiln and control room. Contact and coordination staff should work closely together and follow the instructions.
Since safety risks in steam generators are very serious, operators must pay special attention and observation to ensure the normal use of the equipment, and perform equipment inspections regularly. Once common problems occur, Faults must be dealt with in a timely manner to avoid affecting the use efficiency of the equipment.
Post time: Mar-22-2024
