Hunan's development of nuclear energy, wind energy, bioenergy and solar energy has made encouraging progress

In the process of cracking the energy supply bottleneck, Hunan Province has always taken the idea of ​​“open source energy conservation”. In the development of nuclear energy, wind energy, bioenergy and solar energy, etc., we have already taken delighted steps. It is understood that in the next five years, Hunan's hydropower, solar energy, wind energy, biomass, and other renewable energy generating capacity forecasts will account for about 40% of total installed capacity.

Developing Renewable Energy and Expanding Supply Channels Hunan Province will develop and use new energy such as wind energy as a strategic emerging industry to foster development. According to scientific estimates, the amount of wind energy that can be exploited in Hunan Province is about 2 million kilowatts, and it has a number of companies that have solid foundations in wind power equipment manufacturing, development and utilization, such as Xiangtan Electric, CSR Times, and SANY Electric. At present, the first wind power plant in the province has been built in Yangtse Lake, Zhangzhou, Hunan Province, with an annual power generation capacity of over 60 million. In areas where wind energy resources are better, such as southern Hunan and Dongting Lake, new wind power plants are currently under preparation.

Recently, the Shaoyang Longhui Kaidi Biomass Power Plant in Hunan Province broke ground. After the completion of the power plant, the main use of local agricultural and forestry waste straw, rice hulls and tree branches, etc. as fuel, the use of high-temperature high-temperature ultra-high pressure single pumping gas turbine generator unit for power generation and heating. Each year, about 230,000 tons of agricultural and forestry waste can be digested, equivalent to saving 83,000 tons of standard coal annually and reducing carbon dioxide emissions by 180,000 tons. It can realize an annual output of 198 million kwh electricity, 520,000 tons of steam and 60,000 tons of ash, and an annual sales income of 150 million yuan.

Natural gas development also has good news. According to scientific exploration, shale gas prospective resources amounted to 11 trillion cubic meters in Hunan's Xiangxi and Dongting Lake areas, accounting for about 30% of the country's total reserves. At present, Hunan Province is actively developing. Once the conditions are ripe, this natural gas will open up new channels for the province's energy supply.

The forced elimination of high-energy-consuming enterprises and equipment for the development of clean renewable energy as an “open source” initiative, and the forced elimination of high-energy-consuming enterprises and equipment are the “energy saving” approach in Hunan.

During the “Eleventh Five-Year Plan” period, Hunan Province closed down a batch of illegal enterprises, phased out a batch of backward enterprises, suspended production and regulated a batch of heavily polluting enterprises, regulated a batch of key pollution sources within a time limit and relocated a batch of unreasonably distributed enterprises. Five batches of "comprehensive rectification measures, forced elimination of high energy-consuming enterprises and equipment. During the “11th Five-Year Plan” period, Hunan Province shut down a total of 1,955,500 KWH small thermal power units, eliminated cement, ferroalloys, iron-making, steel-making, flat-steel, small-paper and other backward production capacities of 18.235 million tons and 796,600 tons, respectively. 2.63 million tons, 2.55 million tons, 1.7 million weight boxes, and 1.622 million tons; 801 and 47 high-energy-consuming enterprises such as closure and elimination of various types of small papermaking and ramie spinning textiles, respectively.

In addition, the Hunan Provincial Government has also promulgated the “Administrative Measures on the Environmental Management of Construction Projects in Hunan Province” and the “Regulations on Environmental Access to Industrial Development in the Chang-Zhu-Tan Region” to effectively curb excessive growth in enterprises with high energy consumption. In the “Twelfth Five-Year Plan” of Hunan Province, the focus will be on areas such as Hengshui-Mizong, Zhuzhou Qingshuitang, Quzhou Non-ferrous Mining Concentration Areas, and Loudi Tin Mines, and a group of outdated equipment and companies will be eliminated to realize the industrial structure. advanced optimization.

In terms of consumption, on the one hand, comprehensive use of price, economic, legal and other means to encourage the entire society to save energy, forced elimination of high energy-consuming products and equipment. The Changsha municipal government promotes the use of energy-saving lamps in the city. Each energy-saving lamp is half of the financial subsidy. According to calculations, an energy-saving lamp of 11 watts is equivalent to an incandescent lamp of 55 watts. If calculated on a 5-hour basis, it can save 8 kWh per month. The city uses 200,000 watts of energy-saving lamps, saving more than 19 million kWh per year and saving more than 11 million yuan in electricity costs.

On the other hand, increase the research, development and application of energy-saving products. At present, Hunan Province is making great efforts to develop new energy vehicles. In the streets of Changsha, Zhuzhou, Xiangtan and other places, the hybrid buses independently developed by CSR Times Electric Vehicle Co., Ltd. can be seen. This hybrid bus saves 20% more fuel than traditional fuel buses.

Tapping Screw

Although there are many types of tapping screws, they all have the following similarities:
(1) are generally made of carbonized carbon steel (accounting for 99% of total production). It can also be made of stainless steel or non-ferrous metals.
(2) The product must be heat treated. Carbon steel tapping screws must be carbonized and stainless steel tapping screws must be solution hardened. In order to make tapping screws to meet the requirements of the standard of mechanical properties and performance.
(3) The product surface hardness is high, the core toughness is good. That is, "soft inside strong outside". This is a major feature of tapping Screw performance requirements. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. So "inside soft outside steel" is self-tapping screw to meet the use of performance, very important requirements.
(4) The surface of the product needs surface protection treatment, generally electroplating treatment. Some product surface must be treated by phosphate (photostatting), such as wall panel self - tapping screws for photostatting.
(5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of tapping screw produced by high-speed machine is well formed and the thread quality is high.

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