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Changzhou ushered in the first regional centralized "heating season"
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After the completion of the whole energy station project, the construction area of central refrigeration and heating will exceed 6 million square meters, and the carbon can be reduced by more than 80 thousand tons.
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It is often reported in all the media that the cold wind outside the house is swishing and the house is warm and harmonious. Ms. Zhou, who lives in Jinkebei County Garden in Xinbei District, has had a very comfortable winter: the comfortable room temperature above 20℃ does not come from air-conditioned floor heating, but from the "wisdom empowerment" brought by the construction of high-speed rail new town. Recently, Changzhou High-speed Railway Xincheng Smart Comprehensive Energy Station 1 energy substation was officially put into operation, and Changzhou ushered in the first regional centralized "heating season". After the completion of the whole energy station project, it will provide central heating and cooling services for more than 6 million square meters of buildings in the core area of high-speed rail new town.
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The smart comprehensive energy station project of Changzhou High-speed Railway New Town is the first cooperation demonstration project between Xinbei District Government and China Energy Conservation and Environmental Protection Group under the background of "ecological priority and green development", and it is also an important energy infrastructure project for Changzhou High-speed Railway New Town to build a "smart eco-city". The project was promoted by the Housing and Urban-Rural Development Bureau of Xinbei District, which is the largest energy station in the Yangtze River Delta region and was recently listed as a "science and technology demonstration project" by the Ministry of Housing and Urban-Rural Development. As an important demonstration of clean heating in the middle and lower reaches of the Yangtze River, this project provides an important demonstration and effective practice for promoting clean heating and practicing green and low-carbon development in the south.
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Ms. Zhou feels as warm as spring at home.
Transfer the heat of water to the building.
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The People's Government of Xinbei District, located in Chongxin Road, turned on the heating switch in the building, and the office temperature soon rose to 22℃. The experience is similar to that of central air conditioning, which is very comfortable. The buildings in this area provide central heating and cooling through the intelligent comprehensive energy station 1 energy substation of the newly-built high-speed railway not far away. 1 energy substation is located in the north of Xinqiao Street and the west of Changjiang Road, and is built underground. Through the glass window of the central control room, we can see that two high-temperature water source heat pumps and a double evaporation water chiller have been debugged in place, of which two high-temperature water source heat pumps have started to work, and the energy of water delivered from Binjiang Sewage Plant to the energy substation is continuously delivered to the surrounding buildings through pipelines.
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Zhang Yilin, the person in charge of Xinlong Branch of China Energy Conservation City Energy Conservation Research Institute Co., Ltd., told the reporter that the project adopts the energy supply mode of combining energy master station and energy substation, with reclaimed water from Binjiang Sewage Treatment Plant and algae river water as the main cold and heat sources, supplemented by technologies such as dynamic two-phase energy storage. "In winter, the temperature of reclaimed water is about 15℃. The heat energy of reclaimed water at 6 C is extracted by a small amount of electric energy, and then the heating water temperature reaches 48 C through a water source heat pump, and the heating hot water is transported to various buildings through underground pipelines, thus' moving' the heat of water to heat the buildings. " In short, it is to extract heat from water and convert low-temperature energy into high-temperature energy.
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Energy recovery is expected to reduce carbon emissions by more than 80,000 tons per year.
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At present, there are many problems such as high energy consumption, low efficiency and high pollution in urban central heating in China, which not only wastes a lot of energy resources, but also seriously affects the environmental quality of cities. Energy saving and consumption reduction of urban central heating has become a key area of energy saving and emission reduction in China.
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"Conventional heating in the north burns coal, gas, electricity and other resources, and the heat energy conversion efficiency is only 80% to 90%, and it will cause pollution emissions during the combustion process." Zhang Yilin said that water source heat pump technology is to extract heat from water and then deliver it to users' homes for heating. There is no pollution in the whole process. "It essentially uses solar energy stored in water as a heat source. It is a clean and renewable energy source with little impact on the environment and a heat energy conversion efficiency of 400%." Moreover, the Changzhou High-speed Railway New Town Energy Station project uses reclaimed water. After extracting the heat, it will return to the reclaimed water pump station for watering the flowers and plants in Xinlong ecological forest.
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At present, the energy substation of the first-phase energy station project has been completed and put into operation, and the second-phase energy master station project is under construction. The energy saving and emission reduction benefits of this project are remarkable. After completion, it is estimated that the annual carbon emission will be reduced by 80,000 tons, which is equivalent to adding 800 hectares of broad-leaved forest in the new high-speed rail city, and it will become an important model of "carbon neutrality".
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Covering 6 million square meters of new buildings, centralized energy supply for 9 months.
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The energy station project is promoted according to the general idea of "one-time planning, phased implementation and three-phase completion", with a total investment of * * * 1 100 million yuan. The energy substation 1 which has been put into operation started construction at the end of 20 18, and has been completed and put into operation by the end of this year. The first phase of 1 energy substation has a total investment of 300 million yuan, and the world's most advanced water source heat pump equipment is introduced. The cooling capacity of a single machine can reach 10MW, which can meet the energy demand of central cooling and heating for a building of 200,000 square meters.
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According to reports, central cooling is from May 15 to June 10 to June 15, and central heating is from June 16 15 to March 15. The radiation scope of the whole energy station project is about 6 square kilometers, starting from Shanghai-Chengdu Expressway in the south, reaching Nenjiang Road in the north, Longjiang Road in the east, Changjiang Road in the east, and the southern land in the northern suburbs, which can provide centralized energy supply for new buildings of about 6 million square meters for 9 months.
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Through pre-planning and pipe network wiring, more than 200 new residents have enjoyed this smart energy project. It is estimated that by 2025, there will be 20,000 residents living in Changzhou High-speed Railway New Town. This project adopts two charging methods, namely, 0.5 yuan /kws according to the flow rate, or unlimited use of 48 yuan/㎡ per year.
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Then, can the built building be transformed into central heating? Zhang Yilin said that the completed residential area needs the support of relevant policies and funds to enjoy this kind of central heating service, and it needs to conform to the government's planning, obtain the consent of the owners, and be designed and renovated by professional energy supply units. Installing elevators in similar old residential areas can be used as an active exploration and attempt for the reconstruction of old urban residential areas and existing urban buildings.