I can’t smell the pungent smell of diesel, and I can’t hear the roar of the engine — — The pure electric cruise ship "Yangtze Three Gorges 1" sailing in the lower reaches of Gezhouba in Yichang, Hubei Province has overcome many technical problems and can last for 150 kilometers on a single charge. Since its maiden voyage in March last year, the total electricity consumption of this cruise ship is 950,000 kWh, which is equivalent to a reduction of more than 750 tons of carbon dioxide emissions compared with the same type of conventional fuel-powered ship.
"Yangtze Three Gorges 1" is a new business card for Yichang to promote the green and low-carbon development of Yangtze River shipping.
Ship pollution control is one of the important contents of protecting the ecological environment of the Yangtze River. "Opinions of the Central Committee of the Communist Party of China and the State Council on Deepening the Fight against Pollution" puts forward that "the fight against the protection and restoration of the Yangtze River will continue" and "urban sewage and garbage treatment and pollution control projects such as industrial and agricultural non-point sources, ships and tailings ponds will be solidly promoted". Yichang, located at the junction of the middle and upper reaches of the Yangtze River, is the location of the Three Gorges Project and Gezhouba Water Control Project. Every year, about 60,000 ships pass here to wait for the gate. The prevention and control of ship pollution is a hard task and a must.
The pollutants from ships berthing and waiting for berthing are basically discharged and fully received, the application of shore power is fully promoted, and the manufacture and application of new energy ships are in the ascendant & HELIP; … In recent years, Yichang City has thoroughly implemented the concept of "jointly protecting and not developing" and continuously promoted the prevention and control of port ship pollution, with remarkable results.
The ship’s pollutant receiving, transshipment and disposal capacity ranks in the forefront of the province, and it can be transported away by a "network contract ship"
The river is misty, and a dangerous chemicals ship "Yuanyang 7063" for loading methanol is coming slowly, guided by the staff to dock next to the cabin washing barge and connect to the operation pipeline.
In front of the computer screen of the intelligent operation room, Pan Feng, the safety director, tapped the mouse, and four cabin washers rotated 360 degrees to spray water, cleaning 16 cargo holds one by one. Two hours later, the cabin washer sprayed high-temperature steam, and the chemical residue on the bulkhead was further decomposed. "No one enters the cabin during the operation, and the whole process is automated and visualized." Wang Min, the person in charge of Yichang chemical ship washing station, said that the hidden dangers of explosion and water pollution can only be eliminated after the ship carrying chemicals "bathes".
The sewage pipes from the barges respectively pump different kinds of "bath water" such as benzene, alcohol and acid, and transmit them to the sewage treatment plant 1.3 kilometers away; On the other side, a pipeline marked "reclaimed water" goes straight from the sewage plant to the barge.
"After being treated, part of the tank washing sewage is discharged up to standard, and the other part is recycled to become new tank washing water." Wang Min said that since Yichang Chemical Ship Washing Station was put into use, nearly 100 chemical ships have been washed.
Hardware guarantee is indispensable to ensure that the pollutants from ships are "handed in" and "received". In recent years, Yichang has increased capital investment, built 11 facilities for receiving and transferring pollutants from ships, and built 48 receiving ships, with the receiving, transferring and disposal capacity ranking among the top in the province.
It was dark, and the cargo ship "Dayang 86" was moored at Linjiangping anchorage in Yichang, waiting to pass the Gezhouba lock. During the 7-day voyage, 3 cubic meters of domestic sewage was produced on board. Captain Li Yongjiang turned on his mobile phone, clicked on the "Net Small Appropriate" applet, and submitted a pollutant delivery order.
"There is a ship in ‘ Call ’ Let’s go. " Zhang Shouzhi, the captain of the nearby pollutant receiving ship "Hydrophilic Environmental Protection No.1", took an order on the "Clean Small Appropriate" applet.
Fifteen minutes later, the two ships meet, and the domestic sewage is pumped to "Hydrophilic Environmental Protection No.1" by the sewage pump. After the sewage was delivered, the two captains also received the electronic receipt of ship pollutants generated by "Net Small Appropriate" on their mobile phones, and the delivery time and quantity were clear at a glance. Next, these domestic sewage will be transported by the dock and pumped into the municipal domestic sewage pipe network.
Li Xian, the person in charge of Yichang Transportation Wisdom Center, said that in addition to domestic sewage, the domestic garbage delivered by the ship will be transported by the sanitation department to the solid waste treatment center; Oily wastewater will be pretreated at the dock and then transferred to the hazardous waste disposal unit.
"To strengthen the prevention and control of ship pollution, we should not only improve hardware conditions, but also strengthen software construction and establish a sound long-term mechanism." Li Xian said that Yichang innovatively launched an information system for collaborative treatment of ship pollutants — — "Clean and small", which enables the ship, pollutant receiving ship, transshipment vehicle and terminal processing unit to realize online linkage and help the closed-loop management of the whole process of pollutant "handover and transfer".
At present, Yichang is free of charge for receiving, transferring and disposing ship domestic garbage and domestic sewage. "Make a ‘ Net charter ship ’ Pollutants can be transported away, and now ships and barges can generally deliver pollutants on their own initiative. " Hu Zhaohui, director of the Yichang Municipal Transportation Bureau, said that in the Yichang River section, the pollutants from ships berthing in Hong Kong and waiting to be locked have basically achieved zero emissions and full reception, and the delivery and reception of pollutants from ships have increased year by year. As of June 9, the cumulative number of transactions received by "Net Xiaoyi" exceeded 500,000. Since the launch of the "Net Xiaoyi" system in 2019, Yichang section has received a total of 494,552 tons of pollutants from ships in the Yangtze River.
Build new energy and clean energy supply facilities, and take the lead in realizing full coverage of standardized shore power.
In the middle of the night, the "Yangtze Three Gorges 1", which ended more than two hours of sailing, was moored at the Three Gorges Visitor Center Pier in Yichang Port, and clean shore electricity was continuously delivered to this "water hotel".
Walking into the battery compartment on the first floor of the cruise ship, rows of "small boxes" came into view. This is Ferrous lithium phosphate Power Battery Pack. There are 4 battery compartments on board, and the capacity is equivalent to the sum of the battery capacity of more than 120 electric vehicles.
The battery power is high, how to realize fast and stable charging?
"High-voltage charging, low-voltage power supply, weaving a ‘ Charging network ’ — — This new model solves the problem of high-power charging of large pure electric ships. " Li Xingheng, a shore power operation and maintenance service personnel of State Grid Yichang Power Supply Company, said that the 10 kV high-voltage shore power is converted into low voltage through a ship-borne transformer, and then connected to direct current. After the ship sails upstream, it can replenish power at several cruise ports.
As the "throat" of the golden waterway of the Yangtze River, Yichang has a large number of passing ships docked here every year. In the past, ships used to burn oil to generate electricity after docking, which caused air and noise pollution. "Under the background that the relevant national standards and specifications for port shore power have not yet been promulgated and local governments are encouraged to try first, we have taken many measures to promote the pilot construction of port power." Lin Jianguo, member of the Party Committee of Yichang Port and Shipping Construction and Maintenance Center, said that as early as more than 8 years ago, the first pilot project of shore power supply in the Three Gorges reservoir area was officially completed and sent to Shawan anchorage.
Innovate and explore six typical shore power supply systems to meet the needs of various docking modes and various types of ships; Explore the establishment of a ship-ship integrated shore power cloud network service platform to provide convenient services such as unified settlement and mobile payment for ports and ships … … Efforts were made to try first, and Yichang took the lead in achieving full coverage of standardized shore power in the Yangtze River Basin. Up to now, shore power has covered 63 operating docks and 2 anchorages in Yichang section, providing clean shore power of more than 25 million kilowatts for more than 14,000 sub-ships. It is estimated that the total use of shore power will exceed 7 million kWh this year.
At noon, a cruise ship named "Athena" quietly docked at Zigui Port Passenger Terminal. The reporter boarded the ship with captain Lu Biyun, only to see a thick cable connected to the distribution box on the dock barge on the power box in the middle of the cruise ship.
Because of the stable route and large electricity consumption, the demand for shore power for tourist passenger ships is urgent. In 2019, "Athena" completed the renovation of power receiving facilities and received renovation subsidies. "Over the past three years, Shore Power has saved us more than 900,000 yuan in fuel costs." Lv Biyun said, "Now, cruise ships docked in Yichang are rushing to use shore power, so they should make an appointment in advance."
Not just shore power. In Yichang section of the Yangtze River, the construction of new energy and clean energy supply facilities is in the ascendant. In January of this year, the terminal-type hydrogen production and hydrogenation integrated station was built in Yiling District, Yichang City; In April, the first LNG (liquefied natural gas) filling terminal in the middle and upper reaches of the Yangtze River trunk line was put into operation in Zigui County … …
Accelerate the green and intelligent transformation of inland river shipping industry, and "Yichang made" accounts for more than half of the new energy ships in the province.
Welding flowers splashed on the platform, and huge ships under construction were lying on the river bank. This is Yichang Shipbuilding Industrial Park, where nine shipbuilding enterprises gather.
"Since the spring, the slipway has been operating at almost full capacity." Wang Xu, head of Yichang Shipbuilding Industry Park, said that the order volume of enterprises in the park increased by 40% this year compared with the previous year.
“‘ Yangtze Three Gorges 1’ This is where the No.1 was launched. " Qin Qisheng, chairman of Yichang Xinhui Shipbuilding Co., Ltd. said that the ship was the first order for pure electric new energy ships received by the company, and there was no ready-made experience for reference. "I really have no bottom in my heart."
Xinhui Company set up an expert workstation and invited experts from Wuhan University of Technology and technicians from equipment suppliers to give guidance. "It not only greatly improved the construction efficiency, but also trained a group of construction talents in the installation of new energy batteries." Qi Qisheng said.
Hubei Three Gorges Tourism Group is one of the investors of "Yangtze Three Gorges 1". Liu Jun, deputy manager of Yichang Jiaoyun Changjiang Cruise Co., Ltd., said that as a high-tech ship research demonstration project of the Ministry of Industry and Information Technology, the ship was jointly built by universities, research institutes, power batteries and ship power control system head enterprises.
"It has sailed nearly 300 times, carrying a total of 280,000 passengers, creating a tourism income of more than 12 million yuan. The operation effect of pure electric cruise ships is gratifying." Liu Jun said, "Last year, we invested in two new pure electric cruise ships, which will be completed by the end of this year."
Yichang shipbuilding industry has a long history, with 25 shipbuilding enterprises and more than 100 shipping companies. Today, Yichang is focusing on the development of new energy and clean energy-powered ships, and accelerating the green and intelligent transformation and high-quality development of inland river shipping industry.
In March this year, the first green intelligent ship R&D studio in China was established in Yichang, which was jointly sponsored by China Ship 719 Research Institute, Wuhan University of Technology School of Ship, Sea and Energy Power Engineering and Yichang Ship Inspection Center. "The studio has signed six cooperation projects in Industry-University-Research, which will focus on breaking through the technical bottleneck of pure electric freight ships." Mei Changchun, director of Yichang Port and Shipping Construction and Maintenance Center, said.
On May 18th, Yichang Green Smart Ship Industrial Park with a total investment of 8 billion yuan was started, attracting green smart ship manufacturing and related supporting enterprises in the industrial chain to settle in.
Build a new ship drawing review center to facilitate local ship enterprises to submit drawings for review nearby; Research and develop an online inspection platform for ships, and realize the "handheld" business process … … Improving the quality and speeding up the government services will help Yichang seize the new track of green smart ship manufacturing and run out of the development acceleration. Mei Changchun introduced that in addition to cruise ships, "Yichang made" new energy ships cover container ships, oil-gas dual-fuel and oil-gas-electric hybrid cargo ships, accounting for more than half of the new energy ships in the province.
