In addition to power generation in China's nuclear power, in addition to power generation, there are so many uses of nuclear energy

In addition to power generation, there are so many uses for nuclear energy

Recently, the National Energy Administration released the national power industry statistics from January to June. In the first half of the year, the national power generation capacity was about 2.44 billion kilowatts, of which 55.53 million kilowatts of nuclear power, accounting for approximately 2.3%, an increase of 6.5%year -on -year. As a nuclear power of clean energy, it is playing an increasingly large and larger role in China's economic and social development.

Although the development of China's nuclear power is late, from scratch, from small to large, it has formed a high -level industrial innovation chain and industrial chain. Its technical level and comprehensive strength have ranked among the world's first formation. In recent years, in addition to the production of electricity, nuclear energy has also been applied to many scenarios such as urban heating, industrial supply, seawater desalination, and synthetic fuel.

In an interview with the deputy general manager of China Nuclear Group's China Nuclear Power Nuclear Energy Development Division, it said in an interview with this newspaper that a large amount of thermal energy was released, which can better match the needs of high -temperature process thermal parameters in the industrial production process. The comprehensive utilization of nuclear energy is to fit various application scenarios, or convert the heat energy into electrical energy or directly provide high -temperature process thermal heat. Through the use of energy, scientific energy use can help improve energy utilization efficiency. In the future, nuclear energy will shift from "single player" to "all -round auxiliary", contribute more "nuclear" power to the development of green and low -carbon.

Safe and energy -saving for industries

The use of nuclear energy to boil water has always been an interesting metaphor for nuclear power at many netizens, and this type of ratio also essentially reveals the principle of power generation of nuclear power plants. According to the explanation of Kaikai, the power generation power plant mainly relies on nuclear fission to release energy and transforms water to steam, thereby driving the turbine to generate electricity. Among them, steam can not only be used for power generation, but also useful in industrial production.

On May 27th, after three months of pile foundation construction, the first can of concrete was officially poured at the energy station of Tianwan nuclear power steam energy supply project, marking the country's first industrial use nuclear energy supply project, China Nuclear Group Tianwan Nuclear Power Steam, The energy supply project has fully opened the construction curtain. The project was jointly carried out by Jiangsu Nuclear Power Co., Ltd. and Lianyungang City's Xuxu New District Petrochemical Base. It adopts the steam of Unit 3 and 4 of the China Nuclear Group Tianwan Nuclear Power as a thermal source and transports the steam to Lianyungang Petrochemical Industrial Base for industrial production and utilization. It is expected to be put into production by the end of 2023. Supply. After the completion of the project, the annual supply volume reached 4.8 million tons, which can reduce the annual reduction of 400,000 tons of combustion coal.

"High -temperature and high -voltage steam is an indispensable element of chemical production. At present, the industrial steam in the chemical industry in my country mainly comes from coal -fired power plants or self -prepared coal -fired boilers. Using nuclear energy supply will effectively reduce energy consumption and carbon emissions." China Nuclear Group Jiangsu Liu Yongsheng, general manager of nuclear power maintenance and head of the project.

Many people pay attention to how to ensure the safety of nuclear energy supply? According to Liu Yongsheng, heating industrial steam is transmitted by independent isolation circuit, which ensures the safety of nuclear energy supply cleaning from the design source. In the whole process, there is only heat exchange, and there is no media connection to ensure that nuclear energy supply is safe and reliable. In addition, through measures such as the prefabricated steam insulation scheme of the pipeline, the temperature loss per kilometer can control less than 2 ° C and the voltage drop of 0.03 MPA (MPA) to effectively control the loss of temperature and pressure in the long -distance transmission process of the steam to meet the Lianyungang petrochemical industry The demand for industrial automobiles in the base.

Not just the petrochemical industry, industrial heat or steam has a wide range of demand. For example, in the paper industry, the heating and dissolving of some chemicals in paper production requires the use of steam, and procedures such as processing molding cannot be separated from steam. In the textile printing and dyeing industry, whether it is dyeing, drying or slurry, printing and dyeing, etc., it is inseparable from the support and cooperation of steam. In the rubber industry, steam must be used in rubber extension, vulcanization, and drying. In the pharmaceutical industry, a large amount of industrial steam and pure steam need to use high -temperature sterilization of raw materials, equipment and equipment during the pharmaceutical industry. Steaming, crushing, particle making and other processes also require steam support. In the non -ferrous metal industry, the manufacturing of new energy lithium batteries also needs to use steam to ensure the reaction temperature.

On July 15th, the Zhejiang Haiyan nuclear heating demonstration project (second stage) industrial heating project was successfully started. It is expected to be completed at the end of August this year. The 24 -hour thermal energy supply guarantee can be provided, and the annual industrial heating is about 288,000 Jijiao. This is equivalent to saving about 10,000 tons of standard coal, and about 24,000 tons of carbon dioxide emissions reduction, which will achieve industrial development and energy conservation and carbon reduction. In the future, more and more industries will use steam with nuclear energy.

Heating and warmth for residents

Similar to the principle of providing steam for the industry, nuclear energy also sends heating for residents in winter. The first stage of Zhejiang Haiyan nuclear heating demonstration project is civil heating project. In fact, last winter, China, two small cities in one south, one north, Zhejiang Haiyan and Shandong Haiyang have used nuclear energy heating.

On November 9, 2021, Haiyang entered the heating season in advance. Residents of the new and old town used nuclear energy heating, with a heating area of ​​4.5 million square meters. Relying on the clean calories provided by the "Warm Nuclear No. 1", Haiyang City bid farewell to the history of coal -fired heating for many years, becoming the first zero -carbon heating city in the country.

As the first nationwide, nuclear heating projects have no ready -made experience to refer to, and every step of technical research is creating history. Can "clean electricity" produce "clean heat"? In order to accumulate experience and create a model, Shandong Nuclear Power has gathered the "big coffee" experts such as the China Nuclear Energy Industry Association, Tsinghua University, and the Power Planning and Design Institute to review the project research report. After intense inquiries, discussions, technical solutions Obtained unanimous recognition. On July 10, 2019, the first phase of the Haiyang Nuclear Heating Project was officially started. The project content included the construction of nuclear energy heating and heating stations and the establishment of 15 kilometers. It was completed on September 30 that year. In the heating season of 2019 to 2020, 700,000 square meters of 700,000 square meters of 700,000 square meters in Haiyang City, Resort Area and Nuclear Power Industrial Park used nuclear energy heating. The entire heating season runs smoothly and smoothly. Praise of users and all sectors of society. In 2020, Shandong Nuclear Power opened a research work to promote large -scale long -distance heating. On November 9, 2021, the warm currents brought by Nuclear Energy were transported to thousands of households in Haiyang.

"As soon as heating, the temperature at home reached 23 ° C." Cheng Jingzheng, a resident of the Jinyang Coast Garden Community, Haiyang, said. With nuclear energy heating, the heating fee of residential houses also reduced from the original 22 yuan/square meter to 21 yuan/square meter.

Immediately after, on December 3, 2021, the first stage of Zhejiang Haiyan Nuclear Heating Demonstration Project was officially launched, the heating area was 460,000 square meters. Nearly 4,000 residents of nearly 4,000 residents of nearly 4,000 residents in the three communities of Haiyan Nuclear Power New Village, Nanyuan Nanyuan, and Fengye New Village took the lead in "early adopters" and used zero -carbon, clean and efficient "nuclear heating". This also means that the history of nuclear energy heating has been opened in southern China, and it has never been "shaking" by winter resistance.

As of April 2022, the demonstration project completed the first heating season task, and continued to be safe and stable to nearly 4,000 household heating for 100 days. While the heating quality was increased, the heating price was reduced by about 1/3 over the past. According to estimates, by the end of the "Fourteenth Five -Year Plan", after all the projects were completed and put into operation, it could meet the heating needs of about 4 million square meters of sea salt. Compared with the electrical heating method in the southern region, it can save 196 million kWh.

Nuclear heating is not only clean, but also safe. "Nuclear energy heating is to extract some steam from the nuclear power unit, and heated multiple times through the heat exchange station. The whole process is only the two steps: steam heating water and water heating water." Qinshan Nuclear Power Party Committee Secretary and Chairman Huang Qian said. Nuclear power plants and users 'users'. There are multiple circuits isolation between each loop. There are only heat transfer between each loop, no water exchange, and no radioactive substances enter the heating pipeline. The hot water is only closed in the community. Essence

According to Zou Zhengyu, general manager of Qinshan Nuclear Power, the nuclear heating project uses the Qinshan Nuclear Power Base Unit's winter remaining heat power. Under the premise of not affecting the original power and safety performance of the unit, it is Provide large -scale security, zero -carbon, and economic nuclear energy heating, which truly achieves a win -win situation of local residents, local governments, nuclear power enterprises and ecological and environmental protection.

Innovation is far more than that. Based on the security and stability operation of the pool -type research pile of more than 50 years, China Nuclear Group has independently developed a safe economy, green and environmentally friendly pile -type product, "Yanlong" swimming pool piles. According to Yu Kaiwei, the "Yanlong" pool pile has outstanding characteristics such as high security, clean environmental protection, and strong fittown. A 400 MW "Yanlong" low -temperature heating pile with a heating building area of ​​20 million square meters and can cover 200,000 families.

At present, the "Yanlong" swimming pool -type low -temperature heating pile demonstration project has been included in the "14th Five -Year Plan" of Jilin Province. Experts said that in some areas where there is no nuclear power plant nearby, the pool -type low -temperature heating heating pile is very suitable. Its safety factor is high, which can meet the heating needs within a certain range. Essence

Application of nuclear energy for multi -field applications

Not long ago, the world's first batch of commercial pile carbon-14 radiation production targets, the Qinshan Nuclear Power Third Factory 2 heavy water pile unit of Qinshan Nuclear Power Holdings, China Nuclear Power Holdings, began to produce carbon-14 isotopes in commercial piles. It is expected to be 2024 The annual supply will be supplied to the market, and the output can meet domestic demand. This is another important breakthrough in the comprehensive use of nuclear energy.

What is carbon-14? What can it be used for? What does it have to do with our lives? It turns out that carbon in nature, such as common graphite, diamonds, pencil cores, etc., are carbon-12. In addition, it also has some "brothers" of the isotopes, such as carbon-11, carbon-13, and carbon-14. Their atomic nucleus all have 6 protons, but the number of neutron is different. Carbon-12 is stable, and carbon-14 is radioactive.

"Use the radioactivity of carbon-14 for marking and detection, you can detect Helicobacter pylori and develop drug metabolic dynamic research." Meng Zhiliang, a senior engineer of Qinshan Nuclear Power Corporation of China Nuclear Corporation, said that carbon-14 is often used as markers and is widely used in agriculture and is widely used in agriculture. , Chemistry, medicine, biology and other fields. For example, add carbon-14 to pesticides, and later detects the content of carbon-14 on crops, you can judge the residual amount of pesticides.

Fan Shen, a senior engineer of the Qinshan Nuclear Power of China Nuclear Corporation, introduced that before, China has used small reactors for experimental research to produce carbon-14, but the output is small, the production is discontinuous, and a stable supply cannot be formed. The use of commercial nuclear power units can maintain high-power stable operation for a long time and continuously produce carbon-14. "For the diagnosis and tracking of Helicobacter pylori, the current demand for Helicobacter pylori in my country every year in China is more than 30 million, and the market cannot be underestimated." It will effectively solve and alleviate the problem of domestic carbon-14 isotope supply, and make new contributions to the establishment of a stable and autonomous medical homogeneous supply guarantee system and improve the people's health level.

In addition to making full use of the existing nuclear power crew to carry out comprehensive use of nuclear energy, China Nuclear Group also actively develops advanced nuclear energy systems through scientific and technological innovation to expand more new scenes of nuclear energy comprehensive utilization. For example, on July 13, 2021, China nuclear group Hainan Changjiang multi -purpose module -type small -scale small -scale small -scale pile technology demonstration project officially started construction, becoming the world's first land -based commercial modular pile of land.

According to Yu Kaiwen, the "Linglong One" (ACP100) technology is a multi -functional modular pile of water piles with independent intellectual property rights that has independently developed and has independent intellectual property rights through more than 10 years. It can be used as a clean distributed energy source. While power supply, it can meet the application needs of multiple fields such as seawater desalination, regional heating, and industrial heating (cold).

In the view of Wang Shoujun, the chairman of the Chinese Nuclear Society, nuclear energy has the characteristics of zero -carbon emissions with renewable energy, but also continues the characteristics of uninterrupted and stable service of fossil energy. Following the energy needs of the manufacturing process , High -temperature gas -cooled piles, modular piles, low -temperature heating piles and other advantages, closely combine the needs of user -side comprehensive energy consumption, establish power supply, residential heating, industrial vapor supply, hydrogen production, seawater dilute, and isotope production, etc. The regional comprehensive energy system that is complementary and multi -energy -consolidated will be injected into nuclear energy for the future of China's green and low -carbon development. (Reporter Ye Zi)

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