RedNet Moment Correspondent Cui Shijia reported from Changsha
State Grid Hunan Hydropower Company Centralized Control Center scientific dispatch to ensure power supply。
The employees of the hydraulic engineering team of the centralized control center carried out post-flood water inspection in the Dongjiang reservoir area.
"At present, there are 6 units being overhauled, 2 units capacity expansion and transformation project has entered a critical period, dozens of working surfaces on the production line are intertwined and overlapped, and the 'autumn security inspection' work is also carried out simultaneously, which is the most severe period of on-site safety control." On November 1, the Centralized Control Center of State Grid Hunan Hydropower Company monitored a value for monthly safety analysis meeting, at which the chief of duty explained the on-site operation situation and precautions, and organized discussions and exchanges on how to ensure safe production.
On May 18, 2018, the State Grid Hunan Hydropower Company was established, as a "new enterprise" with "old qualifications", the company integrated the superior resources of the three plants, established a new management model of "centralized monitoring, operation and maintenance integration, and professional maintenance", revitalized the existing hydropower resources in Hunan, and practiced the corporate mission of "people's electricity industry for the people". Up to now, the company has contributed more than 250 billion kWh of clean energy, saved 73 million tons of coal, and reduced carbon dioxide emissions by 240 million tons, making significant contributions to local economic and social development.
Strict management and love Everyone is active and self-motivated
"Yi Shoujun simulated dispatch, Yu Zhou simulated the centralized control value of the long, Chen Zhijun simulated the operation and maintenance of the power plant, below we carried out the Xiaoqiao line power outage maintenance, the Xiaodongjiang power plant to protect the plant electricity anti-accident simulation drill." On the afternoon of August 28, all members of the five values of the monitoring carried out anti-accident drills, focusing on the keen perception ability, rapid judgment ability and comprehensive response ability of the monitoring duty personnel to the occurrence of events, so as to "practice" to promote learning, so as to improve the safety awareness and disposal ability of the monitoring duty personnel.
The weekly regular meeting will be held to the work site, the practical exercise will be used instead of book study, the department management personnel will be arranged to lead the team to go deep into the power plant training, and the safety production law, safety regulations, scheduling procedures will be regularly organized to study the safety production law, safety regulations, scheduling procedures, etc. These are the "new ways" and "old methods" that came into being in response to the centralized control center to strengthen the construction of the team and enhance the comprehensive ability of employees.
At 02:45 on October 3, "Taking over, now in the critical period of National Day power preservation and peak power protection, please be sure to play the spirit of twelve points, do a good job, and ensure that the unit can be driven at any time and can stand up." "After completing the handover shift, all the staff of the four values of monitoring perform their duties, register information, make dispatch calls, carry out industrial television inspections, and monitor rolling information."
"The roof of Fengtan Unit 7 leaks a lot, and there is no change in the load leakage of Unit 7 adjusted in the distance, please check the scene immediately and give feedback in time." On September 21, the four-value Dai of centralized control also found an abnormal situation through industrial television inspection.
The duty personnel of the centralized control center are on duty all day, fully implementing the 7x24 hours standardized and standardized duty, eliminating violations of scheduling discipline, and strictly controlling the leakage of supervision. In the third quarter of this year, a total of 50 defects (including signal cleaning) were found, and 2639 start-and-stops were error-free.
Truth-seeking and pragmatic Everything harvests quality and effectiveness
"According to the Regulations on the Safety Supervision and Administration of the Operation of Hydropower Station Dams, the Dam of Dongjiang Hydropower Station is assessed as a normal dam (Class A) and the Dam of Xiaodongjiang Hydropower Station as a normal dam (Class A-)." On September 18, members of the expert group of the National Dam Center announced the final inspection results at the second meeting of the fourth round of safety periodic inspections of dams in Dongjiang and Xiaodongjiang hydropower stations.
After receiving the notice of the fixed inspection, the centralized control center made overall arrangements, strictly followed the dam inspection procedures and work requirements, deployed the responsibilities of the territorial hydraulic engineering class and the dam safety room, prepared and revised the Dongjiang Dam inspection report and materials many times, and completed the second review of the second round of the Dongjiang Dam inspection organized by the National Dam Center in a timely manner.
On July 12, the Tuoxi Hydraulic Engineering Team of the Centralized Control Center found in its daily inspection and inspection that rockfall often occurred on the slope of the 175 platform of the Tuoxi Power Plant, and the maximum diameter of the falling rock reached 0.8 meters. In order to prevent risk factors such as rockfall and flying rocks on unstable slopes from posing a threat to the safety of personnel and dams, on July 20, the Centralized Control Center formulated and approved the "State Grid Hunan Hydropower Company Zhexi Hydropower Plant Governance Construction Plan". In the process of governance, the construction was re-optimized according to the actual situation, avoiding the noon high temperature period, working overtime, and completing all the treatment work safely and with high quality 18 days in advance.
Since the launch of the construction activity of strengthening management penetration, the centralized control center has strictly implemented the procedures and standardization of project management, strengthened the control of the whole process of the project, focused on strengthening on-site risk control, implemented the whole-process on-site supervision of the project leader, the on-site supervision system of the department head, and combined with remote video surveillance, to ensure the safety of on-site operations. This year, the head of the department went to the project site 14 times to ensure that the project implementation was safe and the quality was error-free.
Fulfill your duties Every drop of water has benefits
Affected by the frequent occurrence of extreme weather, the runoff of major rivers in Hunan Province is becoming more and more different during the year and between years, and the contradictions in water use such as flood control, power generation, irrigation, shipping and ecology are becoming increasingly prominent.
Since June 26, heavy precipitation has lasted for 10 days in and north of Xiangzhong, and major floods have occurred in the Yuanshui and Zishui basins, and the water level of Fengtan and Zhexi reservoirs has risen rapidly, and both have broken through the flood limit in July. The centralized control center makes full use of the short-term sunny weather in the process of heavy rainfall, optimizes the operation mode of the reservoir, tries its best to increase the power generation, reduces the water level of the reservoir, and vacates the storage capacity; and timely grasps the favorable opportunity of abundant water from the rainfall, strengthens communication and coordination with the provincial anti-flood finger and the provincial dispatching center, scientifically blocks the tail of the flood, and ensures the gratifying situation of "ensuring safety, generating more power, and creating benefits".
Since the beginning of this year, the company has strictly implemented the dispatching instructions, optimized the operation mode of the unit, reduced the idling operation time of the unit, increased the load rate of the unit, reduced the water consumption rate of power generation, and improved the power generation efficiency, and has accumulated 3.493 billion cubic meters of tengku, which is converted into about 555 million kWh of electricity efficiency.
As of the end of October, the light and empty water consumption of the three plants was reduced by 36.6% compared with the same period last year, and the equivalent power loss was reduced by 72.49 million kWh compared with the same period last year, and the annual power generation capacity reached 6.747 billion kWh, with significant power generation benefits.