Carbon dioxide creates ice and snow

On January 20, the mascots of the Beijing Winter Olympics, "Bing Dun Dun" and the Winter Paralympic Games, "Xue Rongrong", welcomed the first snow in 2022.

The ice surface made of carbon dioxide transcritical direct cooling ice-making technology has passed the test of the "Meet in Beijing" Winter Olympics series of test competitions from October to December 2021, and has been well received by athletes from various ice events at home and abroad

The venue for the Beijing Winter Olympics figure skating and short track speed skating events is the Capital Gymnasium with a history of more than 50 years

In addition to the high-quality ice surface, the ice making system also plays a key role

In addition, the Capital Stadium ice rink also needs to adapt to the rapid transition between figure skating and short track speed skating

As the only new ice competition venue in the Beijing Winter Olympics, the National Speed ​​Skating Stadium "Ice Ribbon" has also become the first speed skating venue in the history of the Winter Olympics to use carbon dioxide as a refrigerant

The National Speed ​​Skating Stadium has the largest full-ice design in Asia, with an ice surface of more than 12,000 square meters

Compared with the traditional refrigeration system, the use of carbon dioxide refrigerant can improve the energy efficiency by more than 20%, and the carbon emission of the entire refrigeration system is close to zero

The Shougang Ski Jumping Platform is in the process of making snow and preparing for the Winter Olympics

In addition, carbon dioxide refrigeration technology is also used in outdoor snowmaking

The holding of the Beijing Winter Olympics has also promoted the development and technological upgrading of the localization of ice and snow equipment in China