my country's first semi-submersible wave energy breeding tourism platform "Penghu", operates well in the Zhuhai waters.
The brown grouper just salvaged. Photo by Zhu Guifeng
This newspaper reporter Zhu Guifeng Correspondent Gao Xiaoxia Huang Zhaoqiong
In recent years, my country has actively promoted the development and utilization of marine renewable energy, making semi-submersible wave power generation technology a top in the world. Recently, the reporter went to Guishan Island, Zhuhai City, Guangdong Province to find out the "Penghu" - my country's first semi-submersible wave energy breeding tourism platform built with the support of the Ministry of Natural Resources and Guangdong Province.
independent research and development platform to help blue granary
"After running for one and a half years, everything will be fine." On the "Penghu" platform located in Zhuhai Raida Island Aquaculture Fishery, Wang Zhenpeng, an associate researcher at the Marine Energy Research Office of the Guangzhou Institute of Energy, Chinese Academy of Sciences, told reporters that the "Penghu" operates well in the Zhuhai waters and can produce safely under the attack of a strong typhoon of level 14. It has successfully tried to raise golden pomfrets and groupers, and its technical level is world-leading.
It is understood that due to the increasing declining marine fishery resources and the frequent occurrence of nearshore water pollution and fish diseases, expanding the development space of marine fishery, improving quality, reducing pollution, and developing new marine fishery aquaculture technologies and equipment, and moving to the far-reaching sea has become an inevitable choice for the development of marine fishery.
In order to solve the "bottleneck" problems of traditional aquaculture cages in my country due to lack of energy supply, poor wind and wave resistance, and inability to carry modern aquaculture equipment, the Guangzhou Energy Research Institute has combined semi-submersible wave energy power generation technology with deep-sea aquaculture and offshore tourism based on decades of wave energy power generation research, and successfully developed a semi-submersible offshore fishery comprehensive platform technology integrating wave energy power generation, aquaculture, tourism and communication.
The institute has continuously built the 10-kilowatt concept prototype "Eagle-Style-1", the 100-kilowatt engineering prototype "Wanshan" and the 260-kilowatt offshore movable energy platform "Pilot No. 1", breaking through the series of problems that large-scale floating wave energy devices on the sea cannot generate power stably for a long time, and completing the transformation of the Eagle-Style-Steel-Steel-Steel-Seawater Desalination System from test prototypes to engineering prototypes. The built offshore wave-light-storage-seawater desalination system has completed grid-connected power supply technology verification on remote islands and reefs.
It is reported that after the intelligent breeding platform floats up, it can be towed, repaired, maintained, cage cleaning and disinfected, and breeding can be carried out after diving. Its technology is world-leading and has been authorized for invention patents in China, the EU, Japan and Canada.
On June 30, 2019, with the support of the Ministry of Natural Resources and Guangdong Province, my country's first semi-submersible wave energy breeding tourism platform "Penghu" was completed, and was put into the Zhuhai Raidia Island Aquaculture Fishery of Guangdong Dalinyang Marine Biological Co., Ltd. in August of that year.
"Penghu No."Design life span is 20 years, and it is expected to be able to recover money in three or four years, which has good economicality. At present, Guangzhou Energy Research Institute has obtained multiple orders and completed the final design of multiple semi-submersible wave energy breeding tourism platforms of different sizes and different breeding scales.
Marine breeding tourism to help ecological circulation
The reporter saw from the video taken by the drone that the "Penghu" was floating like a square "artificial island" on the vast outer Lingdingyang. On the two basketball court-sized platforms, huge and deep cages are connected to the sea water, and white golden pomfret and brown grouper each occupy one of them, swimming freely; the "Sun"-shaped deck is stable and spacious, equipped with wave energy and solar power generation equipment and energy storage devices, and the energy is completely self-sufficient.
It is understood that the "Penghu" is 60 meters long, 28 meters wide, 16 meters high, and has a working draft of 12 meters. It uses a steel structure and a soft net to form a breeding water body, which can provide 15,000 square meters of aquaculture water body; the platform has 20 people's living space, and has 300 cubic meters of storage space, which is self-sufficient in energy, and all comes from renewable energy.
At the same time, the platform is equipped with seawater desalination, sewage treatment, water heater, air conditioner, freezer and other living equipment. The breeding system is equipped with modern fishery production equipment such as automatic bait feeding, fish school monitoring, water quality monitoring and live fish transmission. It is an intelligent large-scale modern ecological marine ranch complex platform.
"The trial fish species did not suffer from any fish disease." Li Bin, an experimenter on the "Penghu" introduced that the "Penghu" has successfully completed the trial breeding of two varieties in two seasons. The first season is to try to raise gold pomfrets, and fish will be released before New Year's Day 2020. The fish are bright in color and strong in size. The wholesale price per kilogram is 4 yuan higher than the traditional cage fish price; the second season is to raise grouper, and it is currently growing well and will be sold soon.
Li Bin said that the 15,000 cubic meters of aquaculture water provided by "Penghu" can cultivate a maximum of about 300 tons of ordinary fish. After testing, all the fish farmed in "Penghu" have achieved excellent results, which basically verified the advantages of large water farming in open sea areas.
"Practice has proved that the platform has successfully achieved safe production under harsh sea conditions." Wang Zhenpeng introduced that the "Penghu" device has been continuously operating for more than one year, and has experienced multiple storms in two summers and a frontal attack of a typhoon of level 14. The device anchored firmly in the storm and monitored normally. There were no accidents of breaking nets or running fish, and no deaths of fish in the cage occurred, which protected and protected the fishing company's fish assets, fully demonstrating the feasibility and reliability of the application of this technology to the deep sea.
leverages resource advantages to build marine ranch
Warming the sea breeze to enjoy tea and cook their own fishing catches... The reporter saw on the "Penghu" that a stable and spacious platform can not only raise fish but also travel. This new marine leisure fishery method is very popular and has become a highlight of Guishan Island sightseeing.
"Accelerate the integration of fishery and tourism, leverage the blue economy, and do enough marine articles." Chen Jingliang, a second-level inspector of the Guangdong Provincial Department of Natural Resources, said that marine ranches and offshore wind power, wave energy and other clean energy, as an important part of the marine economy, are of great significance in improving the national dietary structure, protecting the offshore ecological environment, promoting energy structure adjustment, and promoting supply-side structural reform and the transformation of new and old kinetic energy.
Guangzhou Energy Research Institute stated that over the past 40 years, the institute has trained a team specializing in wave energy research, undertaken many scientific research tasks such as the Ministry of Natural Resources, the Ministry of Science and Technology, Guangdong Province, and is the main force in wave energy research and development in my country. In the future, we will respond to the construction of Guangdong's "Marine Ranch" and the guidance spirit of the "14th Five-Year Plan" to further optimize and upgrade platform technology; and scientifically deploy aquaculture plans to expand the scale of aquaculture within the scope of the aquaculture capacity of this platform; at the same time, we will improve the acceptance capacity of wave energy breeding tourism integrated platform, improve the construction of offshore service software and hardware systems and service system supporting, actively promote the development of the maritime leisure fishery industry, form a new type of maritime economic growth points and profit and tax points, and promote the high-quality development of the marine economy.
It is understood that at present, my country's wave energy development and utilization has developed with good momentum, and has initially achieved good interaction and combination of technology research and development, upstream users, and downstream equipment manufacturing, and is in a critical stage of industrial promotion and application.
Chen Jingliang pointed out that the Guangdong Provincial Department of Natural Resources will give full play to the advantages of natural resources, actively promote the construction of marine ranches, support the construction of several intelligent marine ranches for ecological conservation and ecological tourism, and develop coastal health tourism such as island leisure, swimming fishing, and sightseeing on the basis of establishing marine ranches, and contribute to the creation of a coastal economic belt and the expansion of blue economic space.
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