Project Address: Dapeng Town, Longgang District, Shenzhen, Guangdong Province
Investors: China Guangdong Nuclear Power Corporation and China National Nuclear Corporation.
Manager: Guangdong Lingao Nuclear Power Co., Ltd.
Reactor type: pressurized water reactor.
Power: 2X990MW
Design life: 40 years
Start time:1May, 997
First commercial operation time: May 2002
Project introduction
The first-phase project of Ling 'ao Nuclear Power Station is the second large-scale commercial nuclear power station built by China Guangdong Nuclear Power Group in Guangdong after Daya Bay Nuclear Power Station was put into operation, according to the policy of "maintaining nuclear power with nuclear power and developing by rolling" determined by the State Council. Taking Daya Bay Nuclear Power Station as a reference, combined with the requirements of experience feedback, new technology application and nuclear safety development, 52 technical improvements were implemented, which comprehensively improved the overall safety level of nuclear power station and the reliability and economy of unit operation. In accordance with international standards, the first phase project of Ling 'ao Nuclear Power Station has promoted the process of autonomy and localization of nuclear power in China, and realized the autonomy of project management, construction, installation, commissioning and production preparation. Part of the design is independent, part of the equipment manufacturing is localized, and the overall localization rate reaches 30%. The first phase of Ling 'ao Nuclear Power Station has achieved the "three goals" of project quality, progress and investment control. All 187 unit projects, excellent and good rate100%; The two units were put into commercial operation 48 days and 66 days in advance respectively; The investment saved is $38 1 10,000, which is nearly 10% less than the budget approved by the state. The construction and operation of the first phase project of Ling 'ao Nuclear Power Station has accumulated valuable experience for the development of nuclear power in China, and laid a good foundation for promoting independent innovation of nuclear power, exploring the technical route CPR 1000 of million-kilowatt nuclear power, and fully realizing the autonomy and localization of China's million-kilowatt commercial nuclear power stations. The nuclear island project of Ling 'ao Nuclear Power Station won the Luban Prize, the highest prize in China. [2]
Construction achievements
Taking Daya Bay Nuclear Power Station as a reference, the first phase project of Ling 'ao Nuclear Power Station implemented 52 technical improvements in combination with the requirements of experience feedback, new technology application and nuclear safety development, which comprehensively improved the overall safety level of the nuclear power station and the reliability and economy of unit operation. The first phase of Ling 'ao Nuclear Power Station will promote the process of China's nuclear power autonomy and localization in accordance with international standards; Realizing the autonomy of project management, building installation, commissioning and production preparation; Part of the design is independent, part of the equipment manufacturing is localized, and the overall localization rate reaches 30%.
The first phase of Ling 'ao Nuclear Power Station has achieved the "three goals" of project quality, progress and investment control. All 187 unit projects, excellent and good rate100%; The two units were put into commercial operation 48 days and 66 days in advance respectively; The investment saved is $38 1 10,000, which is nearly 10% less than the budget approved by the state. [ 1]
running state
Since the first phase of Ling 'ao Nuclear Power Station was completed and put into operation, its safe operation performance has been excellent. 1 unit set a world record of 592 days of unplanned shutdown for two consecutive fuel cycles after commercial operation, and unit 2 set a world record of 935 days of unplanned shutdown for safe operation since the first critical and commercial operation.
In 2006, the first phase of Ling 'ao Nuclear Power Station realized the on-grid electricity150.62 million kWh, and the capacity coefficient reached 9 1.3%. Of the nine key indicators to measure the safe operation level of nuclear power plants in the world, eight exceed the world intermediate level, and four reach or exceed the world advanced level. As of March 3rd, 2007, the cumulative on-grid electricity of Ling 'ao Nuclear Power Station Phase I was about 63.6 billion kWh. [2]
Computational performance
Since the first phase of Ling 'ao Nuclear Power Plant was put into commercial operation, it has achieved excellent operation performance: in 2005, compared with 9 performance indexes of WANO similar units in 2004, 7 indexes of Ling 'ao Nuclear Power Plant exceeded the world intermediate level, among which 1 reached the advanced level.
On February 20, 2005, there was no industrial safety accident for more than 1000 days since the first phase of Ling 'ao Nuclear Power Station was put into operation.
In 2005, the average capacity coefficient and load coefficient of two units in Ling 'ao Nuclear Power Station Phase I were 87. 16% and 86.63% respectively. As of June 2006, 5438+ 10, the cumulative on-grid electricity consumption was 47.052 billion kwh; Accumulated repayment of the principal and interest of infrastructure loans was $65.438+$32 million, accounting for 265.438+0.08% of the total principal and interest. [ 1]
Ling' ao Phase II Nuclear Power Station
Project introduction
Ling 'ao Nuclear Power Station Phase II is the third large-scale commercial nuclear power station built by CGNPC in Guangdong after Daya Bay Nuclear Power Station and Ling 'ao Nuclear Power Station Phase I, and it is planned to build two million kilowatt pressurized water reactor nuclear power units. Ling 'ao Phase II Project is the first nuclear power project to start construction since the state made the decision to "actively promote nuclear power construction". It is also the first million-kilowatt nuclear power project with independent brand technology route in China, and it is also the project with the highest degree of autonomy in China. Lingao Phase II Project is invested and constructed by Lingdong Nuclear Power Co., Ltd., a wholly-owned subsidiary of China Guangdong Nuclear Power Group. Entrusted by the owner, China Guangdong Nuclear Engineering Co., Ltd. is fully responsible for the project construction. It is estimated that the two units will be put into commercial operation on 20 10 and 20 165438 respectively.
Engineering characteristics
According to the deployment of the National Leading Group for Nuclear Power Autonomy, the second phase project of Ling 'ao Nuclear Power Station takes the construction route of independent design, independent manufacturing, independent construction and independent operation, and uses some of the design technologies and equipment manufacturing capabilities of the million kilowatt nuclear power station that have been mastered to increase the proportion of independent design and equipment localization through Sino-foreign cooperation, thus reducing costs and improving the economic competitiveness of nuclear power.
As the first phase expansion project of Ling 'ao Nuclear Power Station, the second phase of Ling 'ao Nuclear Power Station adopts the technical route of China Improved Pressurized Water Reactor (CPR 1000), a brand of China Guangdong Nuclear Power Group, in order to comprehensively enhance the independent design and independent manufacturing capacity of China's million-kilowatt nuclear power station.
CPR 1000 is the product of introduction, digestion, absorption and re-innovation of China Guangdong Nuclear Power Group. On the basis of the successful construction and operation of Daya Bay and Ling 'ao Nuclear Power Station Phase I and the independence of Ling 'ao Nuclear Power Station Phase I, we have identified 15 important technical improvements and more than 40 other technical improvements, such as the adoption of digital instrument control technology, advanced fuel management technology and half-speed steam turbine generator set. And formed the standard technical scheme of China improved PWR (CPR 1000) nuclear power plant. On the premise of meeting the safety requirements, the technical scheme continuously improves the economy, creates conditions for the standardization and batch independent construction of the million kilowatt pressurized water reactor nuclear power plant, and is of great significance to actively promote the independent construction of nuclear power in China.
In the second phase of Ling 'ao Project, CGNPC Engineering Company and CGNPC Design Company are the overall institutes responsible for the overall design, and domestic design institutes complete the engineering design. Among them, the design of nuclear island is undertaken by China Nuclear Power Research and Design Institute and the Second Research and Design Institute of Nuclear Industry, and the foreign party provides necessary support; The design of conventional island and blowout preventer is undertaken by Guangdong Electric Power Design and Research Institute and Shenzhen Zhongguang Nuclear Engineering Design Co., Ltd. The localization of equipment is another feature of Ling 'ao Phase II Project. The general idea of localization is: "market-oriented, project-based, build a localization mechanism led by domestic manufacturing enterprises, and fully form the localization manufacturing capacity of nuclear power equipment." In order to achieve the goal of localization of equipment in the second phase of Ling 'ao Nuclear Power Station, with the strong support of relevant state departments, we will make full use of the existing domestic equipment manufacturing capacity, promote localization through project construction, and strive to reduce the project cost. For the equipment that basically meets the domestic supply conditions, rationally optimize the contents of the procurement package to adapt to the configuration of the domestic market and strive for domestic procurement; If the market conditions permit, purchase in the form of general contracting by domestic manufacturers or complete sets of companies; For the equipment that does not have domestic production capacity, we will try to sign a contract through the procurement mode of introducing technology and foreign technical support to improve the domestic technical level and increase the localization ability. Among the main equipment purchased at present, China Dongfang Electric Group is responsible for the supply of main loop equipment of nuclear island with the support of foreign parties, including key equipment such as reactor pressure vessel, steam generator and primary loop main pump; Through technology transfer, Dongfang Electric Group is responsible for the supply of conventional island steam turbine generator sets; Others, such as ring crane equipment in the reactor building, 180 auxiliary container equipment in the nuclear island, water heater equipment in the conventional island, water softening station equipment and conventional island-plate heat exchanger, etc., all come from domestic manufacturers. The equipment to be purchased from China in the next step includes nuclear fuel assemblies, main transformers, auxiliary transformers, emergency gates, some nuclear-grade valves, some nuclear-grade pumps, some nuclear-grade electrical equipment and cables, and conventional electrical equipment.
On-site construction organization and management of Ling 'ao Phase II Project is the responsibility of CGNPC, and all contractors are domestic construction units. The civil works of nuclear island and conventional island are undertaken by China Huaxing Construction Company and China Second Construction Bureau respectively, while China 23rd Construction Company, Guangdong Thermal Power Installation Company and Tianjin Electric Power Construction Company are responsible for the installation of nuclear island, conventional island and blowout preventer respectively.
job schedule
Since the start of the second phase of Ling 'ao Project in February, 2005, all the work has progressed smoothly and the safety condition is good. About150,000 man-hours have been completed, and no personal injury accidents have occurred. All projects are of good quality; The overall progress of the project is slightly ahead of schedule; The investment completion is good, with the cumulative commitment accounting for 64% of the estimated budget and the completed investment accounting for about 30% of the estimated budget.
In terms of design, the overall design and preliminary design have been completed, and the on-time completion rate of system design and construction drawing design has remained above 95%. The compilation of operation reference documents, the digital design of the whole plant, and the design of man-machine interface in the main control room have been advanced as planned, and the exchange of design interfaces is in a controllable state. In terms of equipment manufacturing, the embedded equipment of Unit 1 arrived as scheduled, the quality of main equipment such as reactor pressure vessel, steam generator and main pump was controllable and the progress met the requirements, and the turbine generator was manufactured. The main equipment of Unit 2 has completed forging and material processing and entered the manufacturing process. On-site construction, the first tank of concrete was poured 1 month in advance for Unit No.1 of Conventional Island, and 2 months in advance for Unit No.2 of Nuclear Island. Up to now, the overall progress of on-site construction is about one month ahead of schedule, and the reactor buildings of Nuclear Island 1 and Unit 2 are 35 days and 40 days ahead of schedule respectively. The conventional island and blowout preventer projects are progressing smoothly, and various installation, commissioning and material management work are being carried out in an orderly manner.
2007 is the peak year of design and procurement, equipment manufacturing, civil engineering and installation of Ling 'ao Phase II Project. 1 June, marked by the hoisting of the dome of the reactor building, 1 unit changed from civil construction to installation. The installation of BOP will begin in the first quarter, and the manufacture of major equipment will enter a critical stage. In terms of design and procurement, the number of planned equipment procurement packages accounts for about 40% of the total. [3]
The second phase 1 unit of Ling 'ao Nuclear Power Station officially started loading nuclear fuel for the first time on April 20 10. This marks that China's first CPR 1000 nuclear power plant with independent intellectual property rights has officially entered the trial operation stage together with nuclear power.
Ling 'ao Nuclear Power Station Phase II 1 Unit is the only nuclear power unit started in China during the Tenth Five-Year Plan period. The relevant person in charge of China Guangdong Nuclear Power Group said that the first loading of nuclear power plants is the beginning of operation. With the introduction of the first nuclear fuel assembly into the core for the first time, the nuclear power plant will enter a more stringent nuclear safety control state.
All parties concerned indicated that they would strengthen the quality and safety management of the power station during and after charging to ensure the nuclear safety during and after charging. It is understood that during the loading process, * * * 157 groups of new nuclear fuel assemblies entered the reactor core, and it is expected that the whole core nuclear fuel loading process will last for 5 days.
The second phase of Ling 'ao Nuclear Power Station adopts China's improved PWR nuclear power technology route CPR 1000, which is owned by China Guangdong Nuclear Power Group. It is a demonstration project of China's own brand nuclear power technology CPR 1000, which plays a connecting role in the development of nuclear power in China. The main project started on June 5438+February 2005 1 May, and the unit started on June 2065/kloc-0. [4]