Silicon Nitride ceramic materials have excellent thermal stability, high oxidation resistance and high dimensional accuracy. Since silicon nitride is a covalent compound with high bond strength and can form an oxide protective film in air, it also has good chemical stability. It is not oxidized below 1200 Â° C, and a protective film is formed at 1200 to 1600 Â° C to prevent further. It is oxidized and is not wetted or corroded by many kinds of molten metals or alloys such as aluminum, lead, tin, silver, brass, nickel, etc., but can be corroded by molten materials such as magnesium, nichrome, and stainless steel. Silicon Nitride Ceramic Ring,Nitride Bearing Ceramic Rings,Resistance Carbide Ceramic Ring,Silicon Nitride Ceramic Bushing SHENZHEN HARD PRECISION CERAMIC CO.,LTD , https://www.hardcm.com
Since the "Twelfth Five-Year Plan", photovoltaic power generation has become a major highlight of China's energy development. The reporter recently learned that in the next five years, China's photovoltaic industry will receive multiple policy support and usher in a period of rapid growth.
The installed capacity in 2020 is expected to reach 160 million kilowatts during the "13th Five-Year Plan" period, and the scale of the solar power industry is expected to increase significantly. According to the scale development indicators provided by the National Energy Administration, by the end of 2020, the installed capacity of solar power is expected to reach 160 million kilowatts, and the annual power generation will reach 170 billion kilowatt hours. Among them, the total installed capacity of photovoltaic power generation reached 150 million kilowatts, and the total installed capacity of solar thermal power generation reached 10 million kilowatts. The solar thermal utilization heat collection area has reached 800 million square meters.
Compared with the scale, the power supply structure is also worthy of attention. According to the plan, by the end of 2020, the installed capacity of solar power will account for about 7% of the power structure, about 15% of the newly installed power structure, and about 2.5% of the total power generation structure in the country.
It is worth noting that the state has also put forward clear indicators for solar power technology innovation. For example, the industrial conversion efficiency of monocrystalline silicon cells, polycrystalline silicon cells and new thin film solar cells has reached 23%, 20% and 20% respectively.
The development layout is clearly defined. Liang Zhipeng, deputy director of the New Energy and Renewable Energy Department of the National Energy Administration, said that the â€œ13th Five-Year Planâ€ will lay out the solar power industry in four aspects:
-- Fully promote distributed photovoltaic power generation. Promote the comprehensive development and construction of distributed photovoltaic power generation systems in areas with construction sites such as site, resources, proximity access, and local consumption.
- Carry out the construction of photovoltaic power stations in an orderly manner. The focus is on the areas with large-scale access and local consumption capacity in the western regions with good resource conditions. Combined with the delivery channel planning, the photovoltaic power station bases will be constructed in an orderly manner to ensure the photovoltaic power consumption.
-- Actively promote the construction of solar thermal power stations. Focus on Qinghai, Gansu, Inner Mongolia and other western countries with good solar energy resources, and the areas where land resources and water resources are relatively unutilized, actively promote a number of solar thermal power station demonstration projects and build several million kilowatt-class solar thermal power generation demonstration bases.
- Promote solar thermal utilization. In 2020, the solar thermal utilization industry will form an industrial structure with balanced development of manufacturing, system integration, and operational services, forming a market layout dominated by civil hot water, heating and cooling, large-scale district heating, and industrial and agricultural heat.
Industrial development has been supported by multiple policies. The â€œ13th Five-Year Planâ€ proposes to promote the optimization and upgrading of energy structure and continue to promote the development of wind power and photovoltaic power generation. Improve the support policies for wind energy, solar energy and biomass power generation.
Liang Zhipeng introduced that during the "13th Five-Year Plan" period, it is necessary to continuously improve the solar photovoltaic power generation market system and rapidly expand the scale and level of large-scale utilization of photovoltaic power generation. Promote the diversified application of photovoltaics according to local conditions; combine the power system reform to comprehensively promote distributed photovoltaic power generation in the central and eastern regions; combine the delivery channels to promote the construction of large-scale photovoltaic bases; comprehensively apply the conditions of land and electricity market, and actively build comprehensive utilization of photovoltaic power generation and electricity price reform And other demonstration bases.
At the same time, he said, according to solar energy resource distribution, climate differences, economic development level, market energy demand, etc., as well as technological maturity and marketization prospects, adapt to local conditions, accelerate the industrialization and diversification of new utilization methods, and cultivate New growth point. In addition, it is necessary to promote the maturity of the solar thermal power generation industry through technological advancement and demonstration promotion. In addition, the solar thermal utilization market and service system are further regulated.
Promote the development of 10 key projects in the â€œ13th Five-Year Planâ€ solar power industry will rely on key projects to allow policy dividends to take root. According to the policy plan of the National Energy Administration, the 13th Five-Year Plan will focus on promoting 10 projects:
First, the focus is on the addition of photovoltaic power generation in key areas such as Beijing-Tianjin-Hebei, the Pearl River Delta, and the Yangtze River Delta, as well as key national ecological protection areas such as Qinghai, Tibet, and Hainan, and key areas such as the Belt and Road.
Second, the focus is on the eastern coastal provinces such as Shandong, Anhui, Jiangsu, Zhejiang, and Guangdong, as well as the areas where modern agriculture is developed.
Third, in areas with relatively high solar energy resources and large-scale access and local consumption conditions, we will focus on building a large-scale photovoltaic power generation base with a million kilowatts that is mainly based on local consumption and leads the advancement of photovoltaic technology.
The fourth is to moderately increase the scale of the external photovoltaic power generation construction.
Fifth, on the basis of the Datong advanced technology demonstration base, this year, in Baotou, Jining, Yangquan, Jiangsu, and southwestern Shanxi, a competition method involving electricity prices was adopted to promote the construction of a number of advanced technology demonstration bases. At the same time, the "photovoltaic leader" program is fully implemented.
Sixth, local areas combine local realities and new energy development, and select a reasonable regional construction of new energy micro-grid projects.
The seventh is to select some counties (or towns) with good renewable energy resources and strong energy transformation needs, and promote the large-scale development of solar energy and the local utilization of distributed energy such as wind power and geothermal energy central heating.
Eight is to develop and construct a batch of solar thermal power generation demonstration projects of 50,000 kW and above in the demonstration phase of 2016-2017, and gradually realize the large-scale development of solar thermal power generation from 2018 to 2020.
Nine is to comprehensively carry out photovoltaic poverty alleviation projects in state-level poverty-stricken counties with a solar energy utilization of more than 1,000 hours.
Ten is to continue to promote home systems, hot water projects combined with construction, and comprehensively improve the level of solar thermal utilization projects.
Silicon Nitride ceramic materials have excellent thermal stability, high oxidation resistance and high dimensional accuracy. Since silicon nitride is a covalent compound with high bond strength and can form an oxide protective film in air, it also has good chemical stability. It is not oxidized below 1200 Â° C, and a protective film is formed at 1200 to 1600 Â° C to prevent further. It is oxidized and is not wetted or corroded by many kinds of molten metals or alloys such as aluminum, lead, tin, silver, brass, nickel, etc., but can be corroded by molten materials such as magnesium, nichrome, and stainless steel.
Silicon Nitride Ceramic Ring,Nitride Bearing Ceramic Rings,Resistance Carbide Ceramic Ring,Silicon Nitride Ceramic Bushing
SHENZHEN HARD PRECISION CERAMIC CO.,LTD , https://www.hardcm.com