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China's Deep Sea Ambition, Technology, Expeditions: News & Updates

中国远洋海运杂志
10月28日 23:05 来自 华为 P8max
【大连海事展:寰岛蛟龙载人观光潜水器】由中船重工702所研制的世界最大型全通透载客潜水器“寰岛蛟龙1”于2015年12月14日在三亚亚龙湾投入试运营。

  这款“寰岛蛟龙1”观光潜水器最大下潜深度40米,可搭载9名乘员,起吊重量23.9吨,总长7.9米、总宽3.6米、总高4.4米,配备供电系统、浮力调节系统、生命支持系统、空调、先进的导航控制系统。

  与传统的采用在金属壳体上开观察窗的观光潜水器不同,“寰岛蛟龙”型载客潜水器的载人舱采用了全通透设计,直接利用一段球形有机玻璃和三段圆柱形有机玻璃作为载人舱耐压壳体,透明的有机玻璃带给乘客一种身临大海的感觉。

  “寰岛蛟龙1”成功应用了“蛟龙号”载人潜水器的创新成果,并成为国内首个获得中国船级社(CCS)认证的载客潜水器,填补了国内观光潜水器市场的空白,为我国海洋旅游开发增添了新的高科技装备。

  据介绍,为了促进国内潜水器领域的发展,中船重工第702研究所在7000米载人潜水器——蛟龙号研制成功的基础上,推动潜水器科技成果的转化应用,由中国诚通投资为其所属寰岛旅游集团开发了此款国内首型全通透载客潜水器。“寰岛蛟龙”型载客潜水器设计师系统由蛟龙号研发团队组成。
China Ocean Shipping Magazine
October 28 23:05

[Dalian Maritime Exhibition: Huandao Xiaolong Manned Sightseeing Submersible] The world's largest fully transparent passenger submersible “Huandao Xiaolong 1” developed by CSIC 702 was put into trial operation at Yalong Bay, Sanya on December 14, 2015. .

This "Suidao Xiaolong 1" sightseeing submersible has a maximum dive depth of 40 meters and can carry 9 passengers. The lifting weight is 23.9 tons, the total length is 7.9 meters, the total width is 3.6 meters, and the total height is 4.4 meters. , equipped with power supply system, buoyancy control system, life support system, air conditioning, advanced navigation control system.

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Vessel returns from scientific expedition
Source: Xinhua| 2018-11-11 20:08:42|Editor: ZX


GUANGZHOU, Nov. 11 (Xinhua) -- China's first self-designed deep-sea exploration vessel returned to port on Sunday after completing a deep-sea geological examination in the Pacific.

The Ocean No. 6 returned to port in south China's Guangdong Province after spending 138 days conducting deep-sea surveys over about 30,000 km, according to Yang Shengxiong, chief engineer with Guangzhou Marine Geological Survey.

The surveys were conducted in areas with cobalt-bearing crusts in West Pacific. It found out about the conditions of the crusts in more than 30 areas, Yang said.

"Samples of the crusts more than 30-cm thick were fetched for the first time," Yang said.

The vessel also realized scale collection of cobalt-bearing crusts, while obtaining samples of microplastics along the sea routes in West Pacific. It also analyzed the amount, types and composition of microplastics in the sea, which laid a foundation for the international treatment of plastic waste in the sea.

It is the eighth deep-sea expedition of the vessel, which has conducted multiple tasks in the South China Sea, the Pacific and the waters around the Antarctic since 2009.

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[Dalian Maritime Exhibition: Huandao Xiaolong Manned Sightseeing Submersible] The world's largest fully transparent passenger submersible “Huandao Xiaolong 1” developed by CSIC 702 was put into trial operation at Yalong Bay, Sanya on December 14, 2015. .

A potential boost for SCS marine tourism, among others.
 
Chinese scientists to deploy buoys 3,000 meters under West Pacific
By Deng Xiaoci Source:Global Times Published: 2018/11/20 20:28:40

Chinese oceanic scientists on Tuesday revealed their plan to upgrade the country's real-time scientific observation network in the tropical West Pacific by exploring the feasibility of deploying subsurface buoys of more than 3,000 meters under the sea, during the 2018 global deployment of China's Kexue (Science) research vessel.

The research vessel, operated by the Qingdao-based Institute of Oceanology of the Chinese Academy of Sciences, set sail from its home port in Qingdao, East China's Shandong Province on Monday, embarking on its 8,500-nautical-mile journey to the tropical West Pacific, according to a statement by the institute sent to the Global Times on Tuesday.

Wang Jianing, a research fellow with the institute, and also the chief scientist for the project, said in the statement that "a real-time observation network has been established in the waters since the end of 2017.

Chinese scientists have successfully collected deep sea monitoring data from 3,000 meters under the sea for over 320 days," he said.

"The latest journey for the vessel eyes to maintain the existing undersurface buoys while upgrading their observing capabilities by increasing the numbers of buoys and exploring the possibility of deploying buoys at greater depths," Wang said.

Chen Linlin, another research fellow with the project, who cooperated in the research vessel's 2017 trip, told the Global Times on Tuesday that "the monitoring data includes the temperature, salinity and current information in the Western Pacific Warm Pool where the buoys are installed."

"Real-time observation of these maritime indicators, helps the Chinese scientists better understand the water dynamics in the Warm Pool, providing key data to study and predict the extreme weather such as typhoons and drought in the East Asian region, as well as the global climate change phenomena such as El Nino," Chen explained.

Researchers aim to deploy buoys that are capable of transmitting such data in a real-time manner deeper than 3,000 meters during the new journey for the vessel, Wang Min, a publicist with the institute told the Global Times.

He stressed that it has yet to determine how much deeper its attempt will be.

"The deeper the buoys can go, the more accurate indicators for the study will be. However, going deeper also means longer transmission distance and more interfering factors," Wang said.

According to Wang, Chinese scientists first achieved real-time scientific observation of 1,000 meters under the sea at the end of 2016 and had enhanced such capabilities to 3,000 meters under the sea by the end of 2017.

The research vessel is expected to return to Qingdao by February 2019.
 
China Shows Off Its First Ocean Mineral Explorer
DOU SHICONG
DATE : NOV 30 2018/SOURCE : YICAI

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China Shows Off Its First Ocean Mineral Explorer

(Yicai Global) Nov. 30 -- China debuted its first global ocean-resource research vessel at a shipyard in Guangzhou today, and plans to deliver it within the first half of 2019.

The 98 meter long ship is owned by the China Ocean Mineral Resources Research and Development Association, ScienceNet, a news portal backed by the Chinese Academy of Sciences, reported. It is 17 meters wide and has a designed displacement of 4,780 tons and a cruising range of more than 14,000 nautical miles.

The vessel, named Ocean, will be able to work all over the world and is equipped with advanced propellers and more than 50 sets of surveying equipment, significantly enhancing China's ability to explore ocean resources and safeguarding the country's interests in international waters.

Founded in 1990, the R&D association is mostly engaged in global seabed resource research and finding new resources for China. It currently uses a vessel known as Ocean-1, which was transformed from a marine geological research ship belonging to the former Soviet Union.
 
Nation to begin building two new ships for 2019
By Zhao Lei | China Daily | Updated: 2017-05-04 07:03

Vessels will improve capabilities in gathering deep-sea information

China will soon begin building its first marine resources survey ship and its first mother ship for manned submersibles, according to the State Oceanic Administration.

Hu Xuedong, deputy director of the administration's Deep Sea Department who oversees China's ocean exploration programs, said at a news conference in Beijing on Wednesday that the construction work on the two vessels will start before July.

The survey ship will be built at China State Shipbuilding Corp's Huangpu Wenchong Shipbuilding Co in Guangzhou, Guangdong province. The mother ship for manned submersibles will be made at China Shipbuilding Industry Corp's Wuchang Shipbuilding Industry Group in Wuhan, Hubei province.

"The two ships will have world-class technological and operational capacity. They will be able to travel at least 6,000 nautical miles on each journey," Hu said. "Their service will extensively improve our capabilities in ocean surveying, deep-sea science and marine environmental protection."

The ships, which have yet to be named, will be commissioned in the first half of 2019, he said.

Currently, China Marine Research Vessels operates 17 long-range oceanographic research ships and 15 coastal water survey ships.

According to the State Oceanic Administration, the marine resources survey ship will be 98 meters long and 17 meters wide, and will have a displacement of 4,000 metric tons. It will have an advanced electric propulsion system.

The vessel will carry more than 70 kinds of scientific research equipment and will be capable of conducting highly accurate long-term surveys in a wide range of fields such as marine geology, marine ecology and ocean-atmosphere systems.

The mother ship, which will serve China's manned submersible Jiaolong, will also have a displacement of around 4,000 tons. It will support Jiaolong's operations and handle and analyze samples taken by the submersible, according to the administration.

Named after a mythical dragon, Jiaolong is China's first manned deep-sea research submersible. It reached its deepest depth-7,062 meters-in the Mariana Trench in June 2012. Currently, the Jiaolong is based on the Xiangyanghong 09, a survey vessel that has been in service since 1978. The new vessel will be the first dedicated mother ship for the submersible.

Hu said the mother ship will also assist the nation's effort to build a manned deep-sea station that the government plans to put into operation around 2030.

Cui Yiliang, editor-in-chief of industry magazine Modern Ships, said the two ships will be sophisticated in terms of technology and structure, so their construction will be a challenge to shipbuilders.
Submersible Jiaolong's new mothership takes to water in central China
Source: Xinhua| 2018-12-08 22:58:54|Editor: Yang Yi


WUHAN, Dec. 8 (Xinhua) -- A new mothership for China's manned submersible Jiaolong successfully took to water in the central city of Wuhan on Saturday.

Shenhai Yihao (DeepSea No. 1) is a comprehensive scientific expedition vessel as well as the country's first self-developed, specially designed mothership for a manned submersible.

It is expected to greatly improve the diving capacity of Jiaolong by lending support including on-site analysis of data and specimen, according to the ship's manufacturer Wuchang Shipbuilding Industry Group under China Shipbuilding Industry Corporation.

The vessel measures 90.2 meters long and 16.8 meters wide. With a designed displacement tonnage of 4,500 tonnes, it has a cruising capacity of over 12,000 nautical miles, according to Chen Tao, board chairman of the ship builder.

Compared with other motherships for manned submersible in the world, Shenhai Yihao boasts larger lab space, lower underwater noise levels and new environmentally friendly designs, said experts at the launch ceremony.

The ship is expected to be put into service in the first half of 2019, setting off global voyages together with Jiaolong.

Jiaolong set a world record by diving to a depth of 7,062 meters during tests in the Mariana Trench in 2012. Its current mothership, 40-year-old Xiangyanghong 09, has carried Jiaolong for hundreds of dives since 2009.

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Chinese manned submersible descends 10,913 meters underwater
New China TV
Published on Dec 15, 2018

Challenging world's deepest ocean: A Chinese manned deep sea device descends to 10,913 meters underwater, just dozens of meters above the #MarianaTrench floor.

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China's manned submersible takes one step closer to its Mariana Trench sea trial
TECH & SCI By Pan Zhaoyi
2018-12-16 22:28 GMT+8

China is getting a step closer to exploring the bottom of the Mariana Trench, the largest crack in the Earth's surface, after the welding of the spherical shell of the submersible's capsule was completed on Saturday.

According to Lei Jiafeng, research fellow of the Institute of Metal Research affiliated with the Chinese Academy of Sciences, China is the first country to build such a large deep-sea manned submersible with titanium alloy materials able to last for over 30 years.

Upon completion, the submersible, capable of diving to depths of over 10,000 meters, will become one of the most advanced deep sea vehicles with the biggest diving depth in the world.

As one of the core components of the submersible, the spherical capsule also serves as a restaurant, a living room, as well as an operation compartment for the pilots.

The technology – joining metals using vacuum electron beam welding and applied on the capsule shell, leaves very narrow space for the welded joints and can weld into a relatively deep position.

By digitally analyzing the movement of the beam, the task was done with great accuracy.

"We used to do manual welding. Now it is welded in a vacuumed environment and it is highly demanding in the precision control of the electron beam. It is no longer controlled by a person. With the parameters fixed, the computer will do the rest stably and accurately," said Ye Cong, chief designer of the manned submersible.

The pressure the vessel will be subjected to at 10,000 meters below surface is similar to that of a car on a fingernail.
 
China's manned submersible takes one step closer to its Mariana Trench sea trial
TECH & SCI By Pan Zhaoyi
2018-12-16 22:28 GMT+8

China is getting a step closer to exploring the bottom of the Mariana Trench, the largest crack in the Earth's surface, after the welding of the spherical shell of the submersible's capsule was completed on Saturday.

According to Lei Jiafeng, research fellow of the Institute of Metal Research affiliated with the Chinese Academy of Sciences, China is the first country to build such a large deep-sea manned submersible with titanium alloy materials able to last for over 30 years.

Upon completion, the submersible, capable of diving to depths of over 10,000 meters, will become one of the most advanced deep sea vehicles with the biggest diving depth in the world.

As one of the core components of the submersible, the spherical capsule also serves as a restaurant, a living room, as well as an operation compartment for the pilots.

The technology – joining metals using vacuum electron beam welding and applied on the capsule shell, leaves very narrow space for the welded joints and can weld into a relatively deep position.

By digitally analyzing the movement of the beam, the task was done with great accuracy.

"We used to do manual welding. Now it is welded in a vacuumed environment and it is highly demanding in the precision control of the electron beam. It is no longer controlled by a person. With the parameters fixed, the computer will do the rest stably and accurately," said Ye Cong, chief designer of the manned submersible.

The pressure the vessel will be subjected to at 10,000 meters below surface is similar to that of a car on a fingernail.

What's the name of this project ? Seems interesting
 
China's manned submersible takes one step closer to its Mariana Trench sea trial
TECH & SCI By Pan Zhaoyi
2018-12-16 22:28 GMT+8

China is getting a step closer to exploring the bottom of the Mariana Trench, the largest crack in the Earth's surface, after the welding of the spherical shell of the submersible's capsule was completed on Saturday.

According to Lei Jiafeng, research fellow of the Institute of Metal Research affiliated with the Chinese Academy of Sciences, China is the first country to build such a large deep-sea manned submersible with titanium alloy materials able to last for over 30 years.

Upon completion, the submersible, capable of diving to depths of over 10,000 meters, will become one of the most advanced deep sea vehicles with the biggest diving depth in the world.

As one of the core components of the submersible, the spherical capsule also serves as a restaurant, a living room, as well as an operation compartment for the pilots.

The technology – joining metals using vacuum electron beam welding and applied on the capsule shell, leaves very narrow space for the welded joints and can weld into a relatively deep position.

By digitally analyzing the movement of the beam, the task was done with great accuracy.

"We used to do manual welding. Now it is welded in a vacuumed environment and it is highly demanding in the precision control of the electron beam. It is no longer controlled by a person. With the parameters fixed, the computer will do the rest stably and accurately," said Ye Cong, chief designer of the manned submersible.

The pressure the vessel will be subjected to at 10,000 meters below surface is similar to that of a car on a fingernail.
would an experiment be done to measure the time dilation effect at the great depth?
according to that theory time slows down due to immense gravity compare to sea level.
 
What's the name of this project ? Seems interesting
It is called "全海深载人深潜器" or Full depth manned submersible.

would an experiment be done to measure the time dilation effect at the great depth?
according to that theory time slows down due to immense gravity compare to sea level.
I won't expect so if you are referring to time change according to relativity? It would be much easier to use an airplane to measure a time change in altitude differences of 10,000 or more meters. Anyway, it has been done many times before and the theory is pretty much accepted.

The latest experimental confirmation, has somewhat happened by chance ->
Synopsis: Satellite Mishap Provides Chance for Relativity Test
December 4, 2018
Two satellites erroneously placed in elliptical orbits have been used to test general relativity with unprecedented precision.

In 2014, two satellites of the Galileo European Global Navigation Satellite System were unintentionally launched on elliptical, rather than circular, orbits. This ellipticity created problems for their use in the global navigation network, but scientists turned this misfortune into an opportunity. Two independent teams, one led by Sven Herrmann at the University of Bremen in Germany and the other by Pacôme Delva, at both the Paris Sciences & Letters–PSL University and Sorbonne University in France, used clocks on the satellites to perform the most precise tests to date of one aspect of general relativity: the gravitational redshift of a clock’s frequency.
...
Link-> Physics - Synopsis: Satellite Mishap Provides Chance for Relativity Test
 
Robot sub maker lauds Tianjin tech pool
By Cheng Yu | China Daily | Updated: 2018-12-18 07:12
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A diver uses an underwater booster developed by underwater robot producer Sublue. [Photo provided to China Daily]

It was an unusual day for Liu Haibing, an engineer from Tianjin, as he and a "friend" searched for a sunken bus, which had plunged into the Yangtze River in Chongqing after a fatal accident in October this year.

"It was not an easy task, as the underwater environment was very complicated at that time, including poor visibility and violent turbulence," he recalled.

In the end, it was his friend, a submersible robot built by Tianjin Sublue Ocean Science and Technology Co Ltd, who found the bus 70 meters under the surface of the river.

As well as being a success for Sublue and the rescuers, the moment was also a success for the Binhai New Area, over 1,700 kilometers away in Tianjin, and just the latest occasion a product from the tech park had made a mark in the world.

Created by the Tianjin government, the area aims to attract hightech industries like artificial intelligence or smart manufacturing, and help supplement the city's traditional strengths of aviation and chemicals.

It also aims to bring coordinated development to the Beijing-Tianjin-Hebei region, a national-level initiative focused on sharing regional resources and spreading economic growth.

By the end of 2017, more than 464 municipal-level and above research centers, including 111 key laboratories and 241 technological centers of major companies, had been established in the technological cluster.

More might yet come, after the Tianjin government announced earlier this year that it is to invest 100 billion yuan ($14.6 billion) in backing companies involved in AI, robots, software, virtual reality and intelligent-connected cars.

Wei Jiancang, general manager of Sublue, said the preferential policies and services from local authorities had been a great enabler for technological innovation in the area.

"The New Area has a complete and well-rounded industrial ecosystem, offering high-tech companies a big help in both research and production," he noted.

Founded in 2013, Sublue produces a range of underwater robots, autonomous underwater vehicles and gliders.

Having made breakthroughs in the military and industrial sectors, it began to explore more consumer-orientated products last year, such as scooters and robots. That appears to have opened growth in new markets. Around 90 percent of its consumer products are sent overseas.

"With a growth in orders from the United States and Australia, the overseas market has been our new engine for growth," Wei said.

Ocean-related industries have been a hotbed in recent years. The added-value of ocean-related industries will exceed $3 trillion by 2030, said a report by the Organization for Economic Co-operation and Development.

"It will be a promising market as countries from around the world have paid great attention and spent a lot in building ocean-related technologies and infrastructure," said Wei.

"At the same time, the consumer market is growing rapidly driven by the growing entertainment demand from young groups," he added.

The company has predicted its sales will hit 262 million yuan this year, huge growth from the 90 million yuan it reported last year.
 
China's underwater glider sets new record
Source: Xinhua| 2018-12-27 11:24:50|Editor: Yang Yi


TIANJIN, Dec. 27 (Xinhua) -- Haiyan, a Chinese underwater glider, has set a new endurance record after working for 141 days and sailing 3,619.6 km in the South China Sea, said the developer.

Codenamed Haiyan, which means storm petrel in Chinese, the long-distance glider completed the test in November, renewing its former record of continuously sailing 2,272.4 km over 119 days in the northern part of the South China Sea in the first half of the year, said the program team from the Tianjin University on Wednesday.

In April, another type of the Haiyan series for deep diving set a world dive record by diving 8,213 meters in the Mariana Trench, the world's deepest known trench.

The unmanned gliders can survey marine conditions, such as temperature, salinity and currents, in large bodies of water over a long period of time.

The Pilot National Laboratory for Marine Science and Technology (Qingdao) has planned to develop a series of the Haiyan gliders working at different depths ranging from 200 meters to 10,000 meters underwater.
 
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