A power plant turbine old employees operating experience summary

A power plant turbine running experience summary of 2018 - old employees 07 - Xiaogang 24 Beijing east thermal power plant turbine operation includes several aspects: daily monitoring and adjusting operation; Accident treatment; Start and stop; Optimization operation mode and technical improvement. In the normal operation of turbine, the daily operation of monitoring and adjusting the operation of main parts, we most of the time of the operators are all around this content. Turbine startup including turning, vacuum, shaft seal, warming-up, blunt, secondary education, constant speed, excitation, interconnection, load, extraction, steam, etc. To stop including equipment load reduction, solution, stop, turning, equipment maintenance, etc. The operation of the turbine including adjustment of electricity load and thermal load. As the end of the power plant equipment ( Gas turbine, boiler, turbine) , and with steam heat load and electrical load, when the load changed when need to adjust the smoke flow, a pump or two flow change will cause the change of load, so the electric load and thermal load instability often change is big; The adjustment of the turbine is the most trouble and frequent. Turbine monitoring parameters of main steam temperature, pressure, flow rate, the vacuum, the opening of the tone, lub oil pressure, control oil pressure, condensate pumps, condenser water, axial displacement, poor bearing temperature, expansion and so on are to keep in mind. The protection of the turbine with low oil pressure protection and vacuum, vibration, axial displacement and bearing temperature, low steam temperature of main steam and low pressure protection, extraction steam pressure high, condenser, liquid level protection and so on. Accident treatment, handy, fast processing accident, according to their own power plant operation and equipment features, need to get accident forecast. Only familiar with the equipment operational personnel structure and the principle and method of use, to manage start-stop devices and accurate quote, acceptance after the repair. Theoretical knowledge and operational personnel sum up to each other, and learn, summarising, regular analysis of the cause of the accident and the processing method, constantly thinking and summary, so as to improve soon. Accident treatment is the ability to test things, should not only to accurately determine the causes, influence scope, and properly handle fast, affecting the loss to a minimum; This is the test operators. Don't be wrong, otherwise light under, or a month or even a few months in vain. I illustrate the because of the rain of my experience of failure: more than 5 o 'clock in the afternoon on July 21 is the biggest rain of Beijing for decades, our factory drag a running - 2 - - - - - The two gas turbine generator set, 2 sets of waste heat boiler, a running of the steam turbine unit, boiler no. 1 boiler steam drum pressure increased suddenly, the main steam of boiler no. 1 export electric door suddenly closed, main steam piping overpressure electric door open, 1 high side valve is opened part of the opening. Attendant on the DCS to open the valves also have no reaction, 63 tons of 4. 5000000 mpa steam can't into the turbine, hurriedly send someone to the scene view this valve state, in the rain, the report said indeed closed without power light show, hurriedly send someone open the manual valve at the scene. Is personnel immediately shut down the turbine is drawn, link scheduling brief explanation, let brothers factory keep a suction pressure. After ten minutes, the main steam of boiler no. 1 export electric manually opened the door, the value of long let electrician disconnected of the valve, in order to avoid shut down again. Objects and found a piece of thin iron plate to cover the electric door to avoid being wet. The closure of the valve should be roof leak rain poured onto the electric door actuator caused the PCB short circuit, led to the valve is closed, the roof leak into indoor rain is too big, is the cause of roof gutters after filled with water from a crack in the roof of the iron back to the factory, flow to the electric door. The next job is to gradually restore operation mode, scheduling, open for a smoke, increase the traffic. Traffic has been added to the flow before the accident, after half an hour, a pumping steam pipeline pressure is at zero. About 3 million mpa, according to the daily load conditions, stress should be 0. About 6 million mpa; Once again add a smoke flow, pressure didn't rise. There must be some problem. Link scheduling, explain; Send someone to check after thermal channel, replied that thermal rain were covered in the pipeline, says have contact pipeline personnel emergency pumping, heard later, pipe smoke all night in the water, after finished, the pressure gradually returned to normal. Middle shift to catch up with these two things, processed after a student in half the time. Stable operation period seems nothing easy, really catch up with the accident, is an exercise and test the value of long time experience and ability, overall level also test the whole team. Run no small matter, this is daily study and summarizes the important and necessary. Optimization operation mode and technical improvement is after familiar with the performance of systems and equipment, to things. This is operation personnel, observe and summarize the sublimation of accumulation. For economic operation of the equipment operation quantity, equipment and equipment all need to obtain the actual equipment such as the maximum output data, in order to meet the needs of the production parameters. The use of new technology for production efficiency and operation personnel of physical strength and so on are of great help, this is according to the different economic capacity of the power plant to determine, as much as possible. Running on physical strength and energy to work hard, make people shift clocks are chaotic, and line and cherish! Would like to have smooth operation power plant equipment, no accident, I wish you all good luck!