The development of energy industry in the 13th fiv

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The 13th five year plan: the development of the energy industry needs the support of metering instruments

the development of the energy industry needs the support of metering instruments, and new energy electricity is also inseparable from electric energy meters. "With the entry into force of the Paris Agreement and the announcement of the 13th five year plan for energy development, coal power overcapacity is mainly manifested in the mismatch between the supply side and the demand side structure." At the recent energy interconnection equipment and Technology Application Conference, Zhou Heliang, the former director of the Electrical Engineering Bureau of the Ministry of machinery industry, introduced that in the long run, a new round of technological and industrial changes in energy equipment is in the ascendant, and mankind is bound to move from fossil energy to non fossil energy

"but this process is long, and it requires several generations to connect the past and the future, and work hard." He stressed that its core is to accelerate the transformation and upgrading of energy equipment, comprehensively improve the ability of independent innovation, enhance the competitiveness of the energy equipment industry, and achieve two pronged efforts: first, the traditional coal-fired steam power generation can be clean and efficient; Second, new energy power generation can operate effectively, economically and stably on a large scale

clean and efficient utilization of coal is the foundation

"the European harmless medical organization (HCWH) has taken measures to keep patients away from medical devices containing PVC and DEHP. By December 31, 2015, there were 425 coal-fired power plants in 31 provinces and cities across the country, including local small and medium-sized units, with an installed capacity of about 990million kW, accounting for 67% of the total installed power generation capacity." Zhou Heliang said that 40% of the world's electricity comes from coal-fired power plants, of which 65% - 70% come from China. From the perspective of China's national conditions, the energy structure with coal as the main body will not change significantly in a short period of time, and coal-fired power units account for about 73% of the total power generation. However, as the proportion of non fossil energy increases year by year, the proportion of coal-fired power is declining year by year, and low-carbon power is the direction of energy development in the future

he further stressed that coal-fired power generation itself is to continuously improve the efficiency of coal-fired power generation, reduce coal consumption and emissions, and there is still room for development of coal-fired power

there are convincing examples of clean and efficient utilization of coal-fired power in China. Shanghai Waigaoqiao No.3 power generation company has implemented a number of technological innovations on its million KW units and optimized the process on the traditional equipment operation system, such as improving steam parameters, adopting secondary reheating, improving the structure of the flow passage part of the steam turbine and optimizing the piping system. After transformation, its power supply coal consumption reaches 276 grams/kWh, the power generation efficiency reaches 46.5% under full load conditions, and smoke, sulfur dioxide The emission of nitrogen oxides reached 10 mg/m3, 35 mg/m3 and 50 mg/m3 respectively, which was better than the emission standard of natural gas power generation

"at present, Shanghai waisan has become a green, clean and efficient power plant with the highest power generation efficiency and the lowest coal consumption and emissions in the world." Zhou Heliang said that after adopting the experience of Shanghai waisan in energy conservation and emission reduction, the two million KW units of China Resources Xuzhou Tongshan power plant, which have been upgraded, have better air pollutant emissions than domestic gas units, and the total emission of sulfur dioxide has been greatly reduced

in fact, it can measure the fatigue degree of relevant springs. As early as September 26, 2014, Shanghai waisan has been awarded the title of national coal power energy conservation and emission reduction demonstration base by the national energy administration. At the ASME power and energy conference held in North Carolina, the president of the conference also invited Feng Weizhong, general manager of Shanghai waisan, to attend and deliver a speech to introduce the experience of Shanghai waisan in energy conservation and emission reduction. "Senior members of the American ASME Committee and scholars and experts attending the meeting paid great attention to, attached importance to and admired the experience of Shanghai waisan in providing power generation efficiency and reducing coal consumption and emissions. The meeting also awarded Feng Weizhong the personal best innovator award." Zhou Heliang told me

"for more than 30 years, the power generation efficiency of coal-fired power units in China has been continuously improved, and the coal consumption for power supply and pollutant emission have decreased year by year." Zhou Heliang said that for example, the coal consumption for power supply decreased from 448 g/kwh in 1980 to 315 g/kwh in 2015, keeping close to the world's advanced level. In addition, a number of energy-saving, emission reduction, clean and efficient, green, low-carbon and ultra-low emission power plants including 350000 kw and 600000 kW supercritical circulating fluidized beds have emerged

in terms of clean and efficient utilization of coal, the executive meeting of the State Council clearly required that in Beijing Tianjin Hebei, the Yangtze River Delta and the Pearl River Delta, except for "cogeneration", it is strictly prohibited to build new high energy consumption and high pollution projects such as coal-fired power generation. By 2020, the average coal consumption for power supply of active power plants will be less than 310G/kwh; The average coal consumption for power supply of new power plants is less than 300g/kwh; Backward production capacity and those that do not meet the requirements of relevant mandatory standards will be eliminated and shut down; In addition, it also requires the eastern coastal areas and central regions such as Hubei, Hunan and Henan to meet the standards in 2017 and 2018 in advance

according to the 13th five year plan for power development issued by the National Energy Administration on November 7, 2016, China will strive to control the cumulative installed capacity of coal-fired power within 1.1 billion kw by 2020. During the 13th Five Year Plan period, the scale of cogeneration units will reach 150million kW, and the amount of conventional coal-fired power units will be about 86million kW

"China's development policy is not only to develop large-scale concentration of new energy and transmit electricity to the load center, but also to vigorously and rapidly develop decentralized and distributed new energy micro electric power generation technology, so as to absorb spontaneous self consumption and surplus electricity nearby." Zhou Heliang provided a set of data released by the United States in July 2016, accounting for 17.60%. In the first half of the year, coal-fired power accounted for 28%, nuclear power 20.5%, natural gas 33.5%, hydropower and renewable energy 16.5%, and fuel oil 1.5%

it is predicted that by 2020, the installed capacity of China's non fossil energy - hydropower, nuclear power, wind power, solar energy and gas turbine power generation will increase from the current 500million kW to about 800million kW, and the proportion of installed capacity of clean energy power generation will reach about 40%; By 2025, the proportion of installed capacity of non fossil energy power generation will reach about 45%; By 2030, the proportion of installed capacity of non fossil energy power generation will reach about 50%; By 2050, the installed capacity of non fossil energy power generation will account for more than 65%, and China will become a world power

he analyzed that China's development of new energy power generation technology, from the current point of view, needs to focus on solving the following prominent problems:

first, we must strive to improve the operating hours of equipment, reduce losses and improve energy efficiency. At present, the average annual operation and utilization hours of nuclear power equipment in China are 7300-7500 hours, 4000-4300 hours for coal power, 3600-3800 hours for hydropower, 1600-1900 hours for wind power and 1000-1100 hours for solar energy

second, we should focus on solving the problems in the safe combination of wind power and solar new energy, power consumption, peak shaving power supply, and improving the technology of energy storage equipment, energy storage system integration technology, energy storage system monitoring technology, micro electric frequency modulation and voltage regulation technology, so as to ensure the stable operation of wind/light

Third, nuclear power should be rationally distributed and developed scientifically under the condition of ensuring safety and ecological environment

fourth, the heavy-duty gas turbine fueled by natural gas on land should implement the policy of paying equal attention to the development of large, medium and small, and the integration of military and civilian, including the development of distributed clean energy centers and combined heat, power and cooling, which are applicable to airports, shopping malls, hotels, hospitals, office buildings, science and technology parks, etc

"We must increase investment in the research and development of gas turbines, key components - compressors, combustion chambers, high-temperature components, turbine control technology and public basic technology, speed up the independent research, development and manufacturing of aeroengines and gas turbines, implement major projects of 'two engines', and follow the principle of research and Development - Test - prototype - modification of design - remanufacture - retest - small batch - large-scale application - repeated testing." Zhou Heliang emphasized

fifth, we should give play to the role of major projects, major equipment, major projects, major decisions - start demonstration projects, and rely on projects, in which national decision-making and government driving force are the leading, and execution is the key

sixth, we should pay attention to the development of quality, emphasize quality first, high performance, high reliability, maintenance free, reduce the failure rate, improve the innovation ability of industrial foundation, key technical materials, and the core basic parts should be based on autonomy, break through the quality bottleneck, and form an international brand with international competitiveness. "For example, Hangzhou turbine Co., Ltd., which adheres to the innovation drive, has ranked among the world's advanced ranks and become a world-renowned industrial turbine manufacturer."

construction of air power highway

"the reverse distribution of energy and load in China determines that long-distance and high-capacity transmission is a long-term strategy for China's power development." Zhou Heliang said that China has hydropower resources in the southwest, coal resources in the north, and wind and solar photovoltaic power generation resources in the West and North. The current increase in demand for trans regional transmission and the decline in environmental carrying capacity have put forward higher requirements for transmission efficiency and resource utilization

according to the introduction, there are "four alternating and four direct" UHV transmission lines in operation at present, namely the Southeast Shanxi line: 1000 kV Southeast Shanxi Nanyang Jingmen (AC); Huai online: 1000 kV Huainan Nanjing Shanghai (exchange); Zhejiang Fuzhou line: 1000 kV South Zhejiang Fuzhou (AC); Lingzhou Shaoxing line: ± 800 kV Lingzhou Shaoxing, Zhejiang (DC); Harbin Zhengzhou line: ± 800 kV Hami South Zhengzhou (DC); JinSu line: ± 800 kV Sichuan Jinping Sunan (DC); Upward line: ± 800 kV Xiangjiaba Shanghai (DC); Xi zhe line: ± 800 kV Xiluodu left bank - Zhejiang Jinhua (DC)

there are "five AC and eight DC" UHV transmission lines under construction: Inner Mongolia Mengdong Ximeng Shandong Zaozhuang (1000 kV AC); West Inner Mongolia south Tianjin (1000 kV AC); Yuheng in Northern Shaanxi Weifang in Shandong (1000 kV AC); Hami, Xinjiang Chongqing (1000 kV AC); Zhundong Wannan (1000 kV AC); Dongxi League in Inner Mongolia Taizhou in Jiangsu (± 800 kV DC); Inner Mongolia Shanghai temple Shandong Linyi (± 800 kV DC); Xinjiang Changji Anhui Guquan (± 1100 kV DC); Zhalut, Inner Mongolia Qingzhou, Shandong (± 800 kV DC); Shanxi Jinbei Jiangsu Nanjing (± 800 kV DC); Jiuquan, Gansu Xiangtan, Hunan (± 800 kV DC); Yunnan Pu'er Guangdong Hongmen (± 800 kV DC), etc

"at the end of the 13th five year plan, all the above UHV transmission lines will be completed and put into operation, and the proportion of long-distance power collection will be increased through UHV transmission." Zhou Heliang said. At present, the first UHV transmission project from Northeast China to North China has also started construction. Among them, Inner Mongolia, Gansu, Xinjiang and Shaanxi water shortage areas adopt wind fire bundling, and southwest China adopts water fire bundling to transmit electricity to the middle and East respectively

by the end of the 13th five year plan, the installed capacity of wind power generation in Jiuquan, Gansu Province will reach 20million kW. After the completion of the ± 800 kV DC transmission line from Jiuquan, Gansu Province to Xiangtan, Hunan Province, the clean energy power transmitted to Hunan can reach 40billion kwh, equivalent to replacing the installed capacity of thermal power of 8million kW

"China's UHV DC transmission has broad prospects for development, and peak shaving power must be increased as soon as possible

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