China News Agency, Beijing, July 22 (Chen Hang) On the 22nd, the reporter learned from the Beijing Winter Olympics Organizing Committee that as the core area of ​​the Beijing Winter Olympics ice events, the Beijing competition area will undertake all ice events, totaling 15 yuan The ice surface is expected to be completed before the end of this year.

The picture shows the construction site of the Capital Gymnasium. Photo by China News Agency reporter Han Haidan

  The Beijing Winter Olympics venues include 4 newly-built ice competition and training venues including the National Speed ​​Skating Stadium "Ice Ribbon". The remodeled venues include 6 ice competition and training venues including the National Aquatics Center "Water Cube" and the Capital Gymnasium. Through the Beijing Winter Olympics, all competition venues will achieve the "amphibious" ability to host winter and summer sports. All ice rinks fully consider the needs during the game and the use after the game.

  Ma Jin, the person in charge of the special design for the ice-making project of the National Speed ​​Skating Hall, introduced that the National Speed ​​Skating Hall will be the venue for the speed skating competition on the Avenue of the Beijing Winter Olympics. It has the largest all-ice design in Asia, with an ice surface area of ​​12,000 square meters. Usually more than 2,000 people can be held at the same time for ice hockey, speed skating, figure skating, curling and other ice sports.

The picture shows the construction site of the Capital Gymnasium. Photo by China News Agency reporter Han Haidan

  He Jin, deputy director of the Infrastructure Office of the Winter Sports Management Center of the State General Administration of Sports, said that the Capital Gymnasium, as the venue for the Beijing Winter Olympics short-track speed skating and figure skating competitions, can undertake various international and domestic high-level ice events and figure skating after the competition. Interpretation on Bingbing.

  According to reports, the Beijing Winter Olympics will be the first Olympic Games in the history of the Olympics to use all green and clean electricity. Some venues in Beijing will be able to use green power for construction and operation within the year. By 2022, all venues will use 100% green power.

The picture shows the construction site of the National Speed ​​Skating Hall. Photo by China News Agency reporter Han Haidan

  Ma Jin said that the National Speed ​​Skating Stadium is the world's largest ice surface using a carbon dioxide transcritical direct cooling refrigeration system, and it is also the world's first winter Olympic venue using carbon dioxide transcritical cooling. This technology is currently the world's most environmentally friendly ice-making technology, with carbon emissions approaching zero; it is also the most advanced ice-making technology, and the ice surface temperature difference can be controlled within 0.5 degrees Celsius. In this way, the cooling efficiency is not only improved by 30% compared with the traditional method, but also the cooling is very uniform, and there will be no different temperatures in various parts. These are all key factors in high-level competitions with a timing of 0.001 seconds. (Finish)