Ice Belt1500m Track Length

The length of the ice belt 1500m track is more than 13 laps, and the length of each lap of the track is11.12m ... The speed skating of the 2022 Winter Olympics will be held in Beijing National Speed Skating Hall. The National Speed Skating Hall, also known as the Ice Belt, is the first speed skating hall using carbon dioxide as refrigerant in the history of the Oriental Olympic Games. It will undertake the speed skating competition and produce 14 gold medals, which is the single hall with the largest number of gold medals in the Winter Olympics.

Track ground structure

The Winter Olympics Ice Belt is the first Winter Olympics venue in the world to use carbon dioxide transcritical refrigeration system to make ice. In the previous competition venues, the board wall was set on the outermost side of the track, and the pads were placed on the inner side of the board wall, which had poor elasticity and caused athletes to be injured and bleed many times.

Nowadays, the short track speed skating venues have cancelled the board wall and directly placed protective mats with a thickness of nearly 1 m on the ground. After an athlete falls and hits the movable protective pad, the protective pad can absorb the impact force to the maximum extent, so that the previous situation of "the athlete bounces back after hitting, causing secondary injury" can be avoided, and the athlete can be effectively protected.

Another example is ice. In the past, the use of liquid nitrogen ice-making technology in ice rinks would cause environmental hazards such as ozone layer destruction and greenhouse effect, and the ice surface effect was not good. The Winter Olympics Ice Belt is the first Winter Olympics venue in the world to use carbon dioxide transcritical refrigeration system to make ice. Compared with the traditional refrigeration system, carbon dioxide refrigeration has higher energy efficiency and better environmental protection, which has been highly praised by relevant international sports organizations.