this is an ordinary but unusual day.
on that day, the no. 7 heat supply network pipeline of south hodo thermal power plant, which had been built for more than two months, entered the key construction stage - connecting the steam source. once this part of the project is completed, it means the completion of the whole line of 7# pipelines aimed at saving energy and reducing consumption, expanding capacity and integrating pipe network.
although the project of connecting the steam source is early in the plan, it is not easy to implement.
after multi-stage construction and transformation of the heat supply network pipeline of south hodo thermal power plant, the parameter level of the heat supply network is more multi-layered, and the heat supply network system is more and more complex. this time, the steam source construction site is in a "sensitive" position. it is not only necessary to isolate the heat source to ensure the construction operation, but also to "pull one hair and move the whole body" for the normal heating and power supply of users.
south hodo thermal power plant has 5 boilers and 4 steam turbine generator units, which operate 3 boilers and 2 units under normal conditions, and are equipped with corresponding post operators. in case of such "special circumstances", the operation mode of 5 boilers and 4 generator units must be changed. firstly, we must face the difficulty of insufficient manpower, and also face the start-up, shutdown and switching of unit operation mode. the preliminary preparation work must be more than several hours. in addition, the operation process of boiler start-up and shutdown is complex, the technical requirements are high, and safety production accidents such as misoperation are easy to occur, therefore, in the switching process, there can be no ups and downs of electrical and thermal loads, and seamless switching must be achieved.
in the face of various difficulties, early in the morning, under the overall planning of the factory leaders, the production technology department took the lead to lead the professional directors of machinery, furnace and heat, mobilize all available personnel and technical forces, coordinate and take their place.
when the morning shift is handed over, they still stay to work with the middle shift. when the middle shift is handed over, they still work with the night shift. in this way, the employees have been working for more than ten hours continuously. they are tired but not slack. when they are hungry, they make a bowl of instant noodles to satisfy their hunger, and when they are sleepy, they drink a cup of strong tea to refresh themselves.
at 2:40 a.m., after 18 hours of continuous start-up and stop switching of 5 boilers and 3 units, the heat source at the construction point was completely isolated, so that the construction team can safely enter the site for construction. in these 18 hours, the thermal power plant did not limit the power and heat of thermal power users, and effectively achieved the safe operation of production. at 4:40, the equipment connected to the heat source was successfully installed. after the construction team finished the site handover and evacuated from the site, the production manager sun jie issued an order to restore the original operation mode to the shift supervisor on duty. the production and technical team who had no time to rest threw themselves into the tense and busy work.
for them, a new job has begun again.