the first 220V substation in xiong'an New District, was put into operation
At 21:36 on June 18, the 220kV Jucun village substation, the first planned substation in xiong'an New District, was put into operation in Rongdong District, the first group of relocated people in xiong'an new area.
▲ 220kV drama village substation.
This is the first hub substation in xiong'an new area, and also the highest voltage level substation in the future "digital active grid". The substation was officially started in September 2019, and will meet the needs of more than 70000 residents in the area in the future, and provide clean power for the construction of a green ecological and livable new city in xiong'an.
With the development of xiong'an new area into a large-scale construction stage, State Grid Corporation has built smart green "xiong'an quality" model project according to the overall requirements of "world vision, international standards, Chinese characteristics and high point positioning". State Grid Hebei Power Company closely adheres to the development layout of "one in one four wings", implements the requirements of the talks between State Grid Company and Hebei provincial Party committee and provincial government, accelerates the construction of xiong'an digital active power grid, and creates an international leading energy Internet demonstration zone. The theme of Jicun substation is "smart energy Cube", innovating skin functional design, creating more environmental protection, low-carbon and beautiful urban energy facilities. Through comprehensive utilization of the surrounding open public space resources, the energy facilities and the social public can be harmonious and symbiotic, so as to realize the "six most" and "6 first" construction achievements.
Intelligent engineering of all digital control
On May 31, at the site of Jicun substation project, Weidong, the project manager, held tablet computer, and checked with the actual installation situation of the station in comparison with the simulated substation equipment image.
To build smart xiong'an, each key project is the specific grasp and carrier“ The most digital all element management is adopted for the Jicun project. The EIM digital engineering management platform of xiong'an power grid is applied in the whole process, and the detailed 3D design is carried out from the source with the construction information model (BIM) technology. The particle size is accurate to the steel bar level, bolt level and hole level. BIM verification is carried out during the whole construction process, so as to achieve the pre simulation, in-process control and post analysis, Ensure that the whole process of project quality can be traced back. " Weidong said.
The construction personnel carried out formwork installation at the construction site of 220kV drama village substation.
Entering and leaving the construction site need to "brush face", material inquiry can "scan code", and the "wisdom" in the drama village substation can be seen everywhere.
Every prefabricated piece, finished product and equipment on the site are printed with a two-dimensional code. Open the mobile phone to scan the code, and all the information will be displayed. As the unique identification of equipment and materials, QR code can scan the real-time data of the whole process of equipment and materials from factory acceptance, arrival confirmation, receiving inspection, three-level quality acceptance to completion and handover, so as to realize the code scanning in construction and start the business process, and provide operation and maintenance support data after completion. State Grid Hebei electric power also relies on the modern smart supply chain operation platform and the Xiong security inspection, storage and distribution integrated material center to accurately meet the material demand and ensure the high quality of project construction.
The Rongdong centralized control station of xiong'an new district power supply company.
Digital construction is not only reflected in the material management, but also in the visual and accurate control of the whole construction process. According to Wei Dong, the drama village substation is an indoor substation. The whole station has three floors. The first floor underground is concrete cable interlayer, and the two floors above ground are steel structure. The structure of the station is complex and there are many embedded parts. The project innovates and applies a new intelligent video monitoring terminal system, and communicates with the digital management and control platform in real time based on the Beidou Positioning System. It can not only realize basic functions such as online image acquisition, environmental monitoring, temperature monitoring, noise monitoring and PM value monitoring, but also connect with mobile devices, and the management personnel can operate the rotation angle of the pan tilt platform, Real time view of the construction situation in different areas, remote realization of equipment linkage, human shape detection, voice intercom, cloud storage and other intelligent functions.
The management personnel of the project department conduct on-site inspection outside the main structure wall of the substation.
"In addition, 23 types of intelligent sensing devices, such as electronic fence, personnel positioning and foundation pit safety monitoring, have been set up on the site to realize in-depth digitization of the whole process from planning to completion." Fan long, deputy manager of construction project, said, "through intelligent management and control, the tracking rate of main construction nodes of the project has reached 100%, the time for design disclosure and construction drawing disclosure has been shortened by 60%, and the investment of professional management personnel has been reduced by 50%, which effectively improves the efficiency of project construction and ensures the optimal project safety, quality and progress."
High quality project with millimeter grade technology
To create "xiong'an quality", it is necessary to ensure that each project can stand the test of history and the people. In the construction process of jucun substation, State Grid Hebei electric power insists on putting the project quality first, keeps improving the construction technology, and builds xiong'an high-quality project and benchmark project with high standards.
At 11:30 on July 7, 2020, with the last steel beam installed in place, the main steel structure of jucun substation was completed“ This is the first steel structure substation in xiong'an new district. There are 66 steel columns and 764 steel beams in the main body. It takes only 84 days from the "first crane" to the completion of the main body of the steel structure. " Wei Dong said.
In order to ensure the quality of the project, the project management department of drama village substation project increased the innovation of construction technology, carried out three-dimensional modeling in an all-round way by using BIM Technology, and conducted in-depth research on the installation sequence and nodes of steel columns. The box type column is installed in the way of "one column to the top". The 2540t Q345 box type steel column of the whole station is connected by bolts and made by the whole factory, which greatly shortens the overall installation time and reduces the accumulated error. The steel column of more than 14.5m is equivalent to the height of five floors. The straightness and perpendicularity errors of the column are controlled within 3mm, realizing millimeter level quality control. According to the measurement, the steel structure bolt perforation connection rate of the station reaches 100%, the seismic fortification intensity reaches 8.5 degrees, and 12 indexes are higher than international standards.
The project adopts BIM Technology to carry out three-dimensional modeling.
In the process of substation cushion pouring, the project department innovatively adopts the skip BIN method to divide the building foundation plane into several areas, and the construction is carried out according to the principle of "block planning, block construction, layered pouring and integral forming", just like checkers, pouring one section after another. Compared with the traditional continuous pouring method, the skip BIN method can effectively reduce the cushion cracks and ensure the engineering quality.
The main structure of 220kV jucun substation is capped.
Continuously deepen the application of science and technology in the construction of jucun substation: innovate the use of laser level, laser point cloud system, electronic total station and other advanced instruments to provide technical support for equipment Basic Calibration, auxiliary installation and other operations; The construction technology of fair faced concrete is adopted for the cable interlayer of the power distribution equipment building, and the appearance quality of the concrete surface reaches the "mirror" effect of no plastering and no decoration; Invention and application of smart power box, welding shield, concrete rebound instrument and other equipment, effectively improve the process level, create "xiong'an quality" in innovation practice.
Xiong'an's first "Green Star" substation
How to integrate the reinforced concrete substation with the urban landscape? With the theme of "sharing and integration", State Grid Hebei Power fully integrates the substation into the overall urban planning, innovatively explores the construction mode of "1 + 5 + X" service-oriented ancillary power facilities in the substation and its surrounding areas, and creates an open green substation, leaving sufficient ecological space for future development.
"We can see from the effect picture that the station is located in the sports park of Rongdong District, with municipal roads in the East and urban green space in the north and West. The main body of the whole station is designed with three sides of slope, which organically integrates the park terrain and the substation. The surrounding green plants are all over the station, forming a well arranged and well-defined landscape structure, just like a natural energy center. " Hu Zhanbin, project manager of "1 + 5 + X" service-oriented ancillary power facilities around 220kV drama village substation, introduced.
It is reported that "1" refers to the substation itself, "5" refers to the edge computing node, intelligent charging and discharging power station, comprehensive energy station, green energy fitness center, emergency support center, and "X" refers to 5g, DC ecology, Beidou enhancement, environmental monitoring, CIEMS, digital currency, piezoelectric footpath, power station and other demonstration scenarios.
Hu Zhanbin said that the project will build a clean energy supply system with electricity as the center. Relying on the body of drama village substation, new supporting infrastructure and energy complex such as post station, coffee bar and leisure square will be developed around the project. Through the construction of ground source heat pump, power exchange wall, smart light pole, entertainment trail and fitness arena, the business scenario and key technologies of energy Internet will be promoted, Create a new business form of smart and convenient services, and help build a new green city suitable for living and business.
To build xiong'an new area, we should adhere to ecological priority and green development“ The project adheres to the principle of ecological and environmental protection and the integration of nature and science and technology, comprehensively promotes the design, construction and operation mode of green buildings, and runs the concept of green development through the whole process of project construction. " Wei Dong said.
Green energy is deeply integrated with architectural design, and many low-carbon environmental protection tips provide demonstration for the construction of green city energy facilities Benchmarking Project.
Overlooking the 220kV drama village substation.
In order to improve the level of green construction, State Grid Hebei electric power has formulated and promoted relevant standards for green construction, comprehensively utilized wind, light, storage, heat and other energy sources, and achieved zero emission of noise, electromagnetic radiation and heat; Light weight electric machinery such as spider crane, electric pusher and crank truck are used to reduce noise and oil pollution; The construction site is equipped with intelligent environmental monitoring meteorological station to monitor temperature and humidity, wind speed, PM2.5 index in real time to ensure dust-free operation. A series of innovative applications ensure the green construction of the substation and realize the whole process of energy saving, water saving, material saving, land saving and environmental protection.
"I didn't expect that there is a multi-functional substation hidden in the corner park. It's so nice to move into a new home in the future and have fitness and entertainment here in spare time!" Wang Ruifa, a villager of Luohe village in Rongcheng Town, sighed after seeing the building model of the drama village substation. Wang Ruifa's family now lives in the county. He and his family often go to the construction site of the resettlement house and look forward to the future life.
Since May 9, the resettlement housing and supporting facilities project in Rongdong District of xiong'an has successively carried out single "light on" commissioning. Under the starry sky, Rongdong district is brightly lit, becoming a beautiful landscape.
In the future, more clean energy power generation will be delivered to thousands of households in xiong'an new area through the drama village substation, adding a green power to the construction of the future city.