[Explanation] The Beijing competition area is the core area of the ice events for the Beijing 2022 Winter Olympics. It will undertake all ice events for the Beijing Winter Olympics and Paralympics. How is the ice construction of the stadiums in Beijing? On July 22, the reporter came to the Beijing Winter Olympics Avenue speed skating venue-the National Speed Skating Stadium to learn about the situation.
[Explanation] According to reports, the Beijing Winter Olympics venues include 4 newly built venues and 6 renovated venues, with a total of 15 ice surfaces, which will be completed before the end of this year.
[Concurrent] Huang Hui, Director of Urban Stadium Construction Division, Beijing Major Project Office
In order to meet the training and competition use of the Beijing 2022 Winter Olympics, a total of 4 new venues have been built in the Beijing competition area, including the National Speed Skating Stadium, Wukesong Ice Sports Center, Winter Sports Center Comprehensive Training Hall, and the National Disabled Ice Skating Center. The training and competition hall of the project will also renovate 6 venues, including the National Aquatics Center, National Stadium, Wukesong Stadium, Capital Gymnasium, First Body Skating Hall and First Body Complex. These 10 venues will provide 15 ice surfaces. These venues will be completed this year in accordance with the overall construction plan.
[Explanation] On the construction site of the National Speed Skating Stadium, the workers are carrying out the construction of the ice making project. According to reports, the National Speed Skating Stadium has the largest all-ice design in Asia, with an ice surface area of 12,000 square meters. At the beginning of the design, it fully considered its use after the game. It adopts a modular control unit to divide the ice surface into several Area, according to different projects, sub-regions and sub-standards for ice making
[Concurrent] Ma Jin, person in charge of the special design of the sports craft ice-making project of the National Speed Skating Stadium
Friends who know about this road speed skating may know that, in fact, our road speed skating only uses the surrounding circle, it is not all used. Why is it so big? In fact, our ice surface is a combined type. Not only can the 2022 Winter Olympics be played on this ice surface, but also short track speed skating, ice hockey, figure (skating), including curling, and In other words, all ice sports can be done on ice.
[Explanation] Ma Jin said that the National Speed Skating Stadium is the world's largest ice surface using carbon dioxide transcritical direct cooling refrigeration system, and it is also the world's first winter Olympic venue using carbon dioxide transcritical cooling. With the blessing of high-tech, the stadium provides better competition conditions for athletes while also being more energy-efficient and environmentally friendly.
[Concurrent] Ma Jin, person in charge of the special design of the sports craft ice-making project of the National Speed Skating Stadium
It is the most environmentally friendly, all using carbon dioxide refrigerant, so that it can make its carbon emissions close to zero, which means it is the most environmentally friendly. The second one is that it is the most advanced. The most advanced is reflected in several aspects. One is that compared with traditional ice making and refrigeration technology, our energy consumption can save more than 20% to nearly 30%. In terms of energy consumption, we can save so much. In addition, we can make the temperature difference of the entire ice surface to the extreme. Our current design goal is to achieve 0.5 degrees. This will be provided to the 2022 Winter Olympics and the participating athletes. Excellent competition conditions.
[Explanation] At the same time, the National Speed Skating Stadium has built an energy management intelligent system that uses the waste heat generated by refrigeration for athletes’ domestic hot water, ice melting pool, ice surface maintenance and ice pouring, etc. The all-ice operation mode will be next year It can save 2 million kWh of electricity.
[Explanation] It is understood that the Beijing Winter Olympics will be the first Olympic Games in the history of the Olympics to use all green and clean electricity. With the commissioning of the world’s first 500,000 volt Zhangbei flexible DC transmission and transformation project in June this year, the Beijing part The venues will be able to use green electricity for construction and operation within the year. By 2022, all venues will use 100% green electricity.
(Reporting by reporter Shan Lu from Beijing)
Editor in charge: [Li Yuxin]