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The sea map is strong, and the "blue engine" is surging with power

The blue sea is boundless, and the "blue engine" is surging with power.

General Secretary Xi Jinping pointed out that "a developed marine economy is an important support for building a maritime power" and "the development of the marine economy has a bright future".

Since the founding of the People's Republic of China 75 years ago, especially since the 18th National Congress of the Communist Party of China, the mainland has continued to care about the ocean, understand the ocean, and manage the ocean. In 2023, the quantity and quality of the mainland's marine economy will rise, and the country's marine GDP will reach 9,909.7 billion yuan, accounting for 7.9% of GDP, driving the growth of the national economy by 0.4 percentage points.

Vigorously develop the marine economy and build a maritime power. From "the benefit of fishing and salt" and "the convenience of boating", to the wind blowing on the sea to light up the lights of the land, once the salt water turned into fresh water, and high-quality marine fish were put on the table...... The mainland's marine industry is thriving, holding up a new blue economic space.

Ask for energy from the sea

More "green electricity" will benefit thousands of households

General Secretary Xi Jinping emphasized that "the ocean is a strategic place for high-quality development" and "it is necessary to accelerate the pace of marine science and technology innovation, improve the ability to develop marine resources, and cultivate and expand marine strategic emerging industries".

In June 2023, the blades of a 16-megawatt offshore wind turbine with a length of 123 meters and equivalent to a height of more than 40 floors were sent to the waters of Pingtan in Fujian Province by cargo ship to be installed on the hub of the wind turbine.

In the face of strong winds and complex sea conditions, Goldwind's scientific researchers and construction unit personnel worked closely together to carefully control the equipment, slowly lifted the blades to a height of 150 meters, and inserted 176 bolts into the hub holes at the same time, with millimeter accuracy. After post-commissioning and grid connection, the giant "white windmill" dances with the wind, continuously transporting green electricity to the land.

This impressive 16 MW offshore wind turbine can produce more than 66 million kWh of "green electricity" per year. "It has set a world record of 387,200 kWh of the highest power generation in a single day, which is equivalent to the daily electricity consumption of more than 100,000 people, and this type of wind turbine has been applied in batches in the Fujian Zhangpu Phase II offshore wind farm of the Three Gorges Group." Zhang Zhe, general manager of Goldwind Fujian Company, introduced.

In order to achieve domestic independent R&D, design and manufacturing of 16 MW offshore wind turbines, Goldwind and CTG have set up more than 30 scientific research teams, gathered nearly 1,000 R&D personnel, and spent 18 months to overcome many problems such as lightweight ultra-long flexible blade design, localization design of main bearings and transformers, and single-blade hoisting design.

Independent innovation, strong to the sea. With the strong support of scientific and technological innovation, the marine renewable energy system has grown and has unlimited potential. As of August this year, the single-unit megawatt unit "Endeavour", independently developed by the mainland, has been in continuous operation for more than 28 months, with a cumulative power transmission of more than 4 million kilowatt hours, accumulating engineering experience for the large-scale utilization of tidal energy. The self-developed single-unit megawatt wave energy generator set "Nankun" was successfully tested at sea and successfully achieved grid-connected trial operation......

Since the beginning of the new era, the scale of the mainland's marine power industry has continued to expand, the large-scale demonstration projects of marine renewable energy have been steadily promoted, and the industrial added value has maintained rapid growth for many years. By the end of 2023, the cumulative installed capacity of offshore wind power in mainland China will reach 37.28 million kilowatts.

Offshore wind energy is endless, wave potential energy is unstoppable, tidal momentum is inexhaustible, innovation and breakthroughs are accelerating the development of new kinetic energy for the production industry, and more "green electricity" will benefit thousands of households.

Ask for food from the sea

The "blue granary" enriches China's rice bowl

General Secretary Xi Jinping pointed out: "China is a large country with a population of more than 1.4 billion, to solve the problem of food and ensure food security, we must establish a big food concept, not only from the land but also from the sea for food, cultivate the sea, animal husbandry and fishery, and build sea ranches and 'blue granaries'." ”

Golden pomfret "Chenhai No. 1", tiger dragon hybrid spotted ...... In Yazhou Bay Science and Technology City, Sanya, Hainan, Hainan Chenhai Seafood Co., Ltd. broodstock breeding and selection base, there are rich varieties of marine fish, dazzling, and 3 scientific researchers picked up a huge grouper to prepare for cross-breeding.

"Over the years, we have taken root in the research and application of scientific breeding of marine fish, established a tropical marine fish germplasm resource bank and gene bank, and strived to achieve independent and controllable aquatic provenance, so that people can eat marine fish with good quality and low price." Cai Chunyou, chairman of Hainan Chenhai Seafood Co., Ltd., introduced that up to now, the company has achieved artificial breeding of 52 varieties of tropical marine fish, more than 100,000 breeding fish (parents), and the longest breeding period is more than 20 years.

A small marine fish "swims" out of an industrial chain.

Not only breeding, from breeding to promotion, Hainan Chenhai Seafood Co., Ltd. has formed an ecological industrial chain integrating "protection, breeding, breeding, breeding, research, research, and tourism" based on high-quality and efficient seedlings, and combining the closed-loop of agriculture, culture and tourism. The company has also carried out "company + farmer" and "fish farming industry cooperation project" in many places to drive the common development of tens of thousands of farmers.

Fujian's self-developed "Fufa No. 1" new variety of large yellow croaker has been recognized as a new national variety; The new aquatic varieties "Haimao No. 1" and "Haixingnong No. 3" independently cultivated by Guangdong broke the monopoly of foreign provenance...... Breakthroughs have been made in marine fishery breeding in many coastal areas, and the seed industry, which is the basic work for the development of modern agriculture and fishery, is being done well.

Food security is the "great thing of the country", and the "blue granary" continues to enrich China's rice bowl. On the new journey, the mainland continues to strengthen the scientific and technological research and application of marine fishery breeding, store grain in technology, innovate aquaculture technology, accelerate the construction of marine ranches, and strongly support the fishery to "go to the shore and go to the deep sea". By vigorously developing deep-sea aquaculture equipment and smart fisheries, we will promote the transformation and upgrading of marine fisheries to informatization, intelligence and modernization, and promote the high-quality development of marine fisheries.

Ploughing the sea, animal husbandry and fishing, chasing dreams of deep blue, more and more green, healthy and high-quality food from the ocean has been put on the people's table.

Ask for fresh water from the sea

Actively increase the source of water resources

The development of seawater desalination industry is not only related to national water security, but also directly affects people's livelihood and well-being.

Walking into Xianda (Tianjin) Seawater Resources Development Co., Ltd., located in Tianjin Nangang Industrial Zone, rows of neat membrane desalination equipment come into view. Thirteen kilometres away, offshore seawater is being pumped and transported to the desalination plant, where it has undergone several delicate desalination processes to become clear fresh water that meets the needs of the entire Tianjin Nangang Industrial Zone.

"With the technical support of the Tianjin Institute of Seawater Desalination and Comprehensive Utilization of the Ministry of Natural Resources, we have set up a complete demonstration project of seawater desalination and comprehensive utilization." Yang Hongfei, CEO of Xianda (Tianjin) Seawater Resources Development Co., Ltd., said that one of the production lines is completely installed and built by domestic equipment, and is expected to be completed by the end of October this year, which will become another demonstration project of domestic desalination technology.

In order to realize the localization of key equipment for seawater desalination, the Tianjin Institute of Seawater Desalination and Comprehensive Utilization of the Ministry of Natural Resources has made unremitting efforts to tackle key equipment and materials such as high-pressure pumps, booster pumps, energy recovery, reverse osmosis membranes, etc., and finally developed desalination equipment and products with international advanced performance.

The continent is a maritime power, and the ocean "contains" abundant fresh water. As an open-source incremental technology of water resources, desalinated seawater can stabilize water supply, emergency water supply and strategic water supply, and is an important way to solve the problem of coastal water shortage.

After years of development, the mainland has initially formed a seawater desalination industry chain covering R&D and design, equipment manufacturing, engineering general contracting, water production operation, comprehensive utilization and other links, and the scale of seawater desalination projects has grown rapidly, from 770,000 tons/day in 2012 to 2.52 million tons/day in 2023, providing important "development water" for coastal petrochemical, electric power, steel and other industries, and also providing irreplaceable "people's livelihood water" for remote island residents.

The report of the 20th National Congress of the Communist Party of China proposed, "Develop the marine economy, protect the marine ecological environment, and accelerate the construction of a maritime power." The "Decision" of the Third Plenary Session of the 20th Central Committee of the Communist Party of China proposed, "Improve the system and mechanism for promoting the development of the marine economy." ”

The ocean is a strategic place for high-quality development. Adhere to the equal emphasis on development and protection, realize the orderly development and utilization of marine resources, actively support the high-quality development of the ocean through high-level protection, and build a maritime power.

Source: People's Daily