Since mid-September, with the beginning of the Yellow River's open sediment discharge period, the water level of the Xiaoshawan Water Plant section of the Yellow River has dropped rapidly to below 959 meters above sea level, with fast water flow and high sediment content, which has caused certain difficulties for Zhunneng Group's water intake work in the Yellow River.
In order to effectively cope with this special period, Zhunneng Group Public Utilities Company planned and made careful arrangements in advance, formulated practical and effective countermeasures according to the situation of water supply and user needs, and went all out to ensure water supply during the period of open discharge and sediment discharge of the Yellow River.
The company set up a leading group for safe water intake and supply guarantee as soon as possible, coordinated the formulation of the Yellow River Lassa supply guarantee plan, strengthened the precise command of production scheduling, and strictly implemented the 24-hour on-duty system for management personnel at all levels, strengthened information reporting and communication, and solved the blockages and difficulties encountered in water intake operations in a timely manner. Strengthen organization and coordination, strengthen communication with the Yellow River Wanjiazhai Water Conservancy Hub Co., Ltd., relevant departments of the company and various users, timely grasp the Yellow River water forecast, optimize the operation mode of water supply and supply, open the high-water level operation mode in advance, and improve water storage and water supply capacity. Actively coordinate all water users to do a good job of water storage and water conservation in advance, reasonably allocate the water supply of each unit during the shutdown, and ensure the normal water use of users such as gangue power generation companies to the greatest extent.
During this period, Xiaoshawan Water Plant adhered to the concept of safe production as the starting point, always practiced the concept of "simple" maintenance and excellence, made full use of the shutdown gap to sort out and analyze the fault problems and weak links in the daily operation process, and continued to carry out equipment and facilities maintenance.
Xiaoshawan Water Plant highlights the key points and difficulties of professional maintenance and maintenance of pipelines and electricals, and does in-depth and detailed maintenance work during the shutdown. The equipment and facilities such as packing, sealing strips, vacuum pumps, and power connectors of the mobile pump truck of the first-level pumping station were inspected and maintained, and the packing of the unit was replaced; Intensify the inspection of the main and auxiliary units of the secondary pumping station, clean up the silt and debris between the rotating filter screens, stacked beam doors and corridors, and ensure the normal operation after starting; Strengthen the inspection of the electrical control system of the pressurized pumping station, check the operation of the start-stop system and the hydraulic control check system and other equipment to ensure the stability of water supply; Seize the opportunity, do a good job in the maintenance and maintenance of heating equipment in the plant, self-inspection of heating boilers and pressure gauges, safety valves, power supply systems and other supporting facilities, and inspect and calibrate all kinds of equipment in advance, so as to lay the foundation for on-time heating.
At the same time, the plant also continues to do a good job in the daily inspection and inspection of water pipelines and structures inside and outside the plant, keeps an eye on the progress and safety of projects such as cable replacement, emergency road maintenance and off-site water pipeline relocation, and coordinates and cooperates with the construction unit to do a good job in the start and stop of water supply units and the identification of pipeline locations, so as to make adequate preparations for putting into operation at any time. From September 10th to 26th, Xiaoshawan Water Plant completed more than 89,000 cubic meters of water supply.
It is understood that as of September 25, the Yellow River open discharge and sediment discharge period has ended, the current water level is gradually rising, and it is expected that the Xiaoshawan Water Plant will resume normal water supply at the end of the month.