On the evening of February 4, the opening ceremony of the XXIV Winter Olympic Games was held in Beijing.
From bidding to preparation, the Beijing Winter Olympic Games have always adhered to the principles of green, low-carbon and sustainable, and the practice of "green Olympic Games" runs through all aspects, helping "Green Winter Olympics" to help "Made in Shandong".
Green ice making: Carbon dioxide cross-critical direct cold ice making, carbon emissions tend to be close to zero
Walking into the "Ice Ribbon" of the National Speed Skating Hall, you will be greeted by a whole 12,000 square meters of ice surface, which is the largest multi-functional full ice surface in the world using carbon dioxide transcritical direct cold ice technology.
Here, six sets of CO2 transcritical compression equipment provided by Qingdao Haier Carrier Refrigeration Equipment Co., Ltd. are running stably.
"We can keep the ice level within 0.5 degrees Celsius, which allows athletes to perform better." Jiang Dianju, director of the engineering and development department of Qingdao Haier Carrier Refrigeration Equipment Co., Ltd., said in an interview with lightning news reporters.
Green Olympics is one of the core concepts of this Winter Olympic Games, the national speed skating hall new ice surface of 12,000 square meters, a large area of ice, but also to minimize emissions, which gives equipment manufacturers a big problem.
With the accumulation of technology, Haier Carrier has successfully replaced traditional refrigerants such as Freon and ethylene glycol with carbon dioxide, and achieved green upgrades at the source of refrigeration.
The reporter consulted @ China Environment Official Micro learned that carbon dioxide environmentally friendly refrigerants for ice making, the ice surface temperature difference is controlled within 0.5 degrees Celsius, and the carbon emission is close to zero, reducing the damage of traditional refrigerants to the ozone layer.
In addition to the core carbon dioxide transcritical compressor unit, Shandong also relies on its own industrial chain advantages to provide supporting technical support for the green ice making of the National Speed Skating Hall.
Among them, Shandong Shenzhou Refrigeration Equipment Co., Ltd., located in Jinan, undertook the manufacturing task of medium-pressure oil return unit, which is the key hub to ensure the operation of the core unit of the system.
What makes Shandong people even more proud is that these "Shandong-made" refrigeration equipment have helped "Ice Ribbon" achieve the first of 4 worlds:
The National Speed Skating Hall adopts carbon dioxide transcritical direct cooling system, which is the world's first winter Olympic speed skating venue to adopt carbon dioxide transcritical direct evaporative refrigeration; the design and application of the 14 cubic meter carbon dioxide barrel pump unit adopted by it is the first in the world; the application of centralized medium pressure return oil in the carbon dioxide refrigeration system is the first in the world; and the application of ultra-long stainless steel cold drain pipe in artificial ice rink is the first in the world.
Green Transportation: Hydrogen Fuel Buses Help "Green Winter Olympics"
According to People's Daily news, during the Beijing Winter Olympics, all 26 venues in the three major competition areas will use "green electricity", of which hydrogen energy will become the "protagonist" energy.
To help the Green Winter Olympics, Zhongtong Bus in Liaocheng, Shandong Province, and 40 hydrogen fuel buses tailored for the Winter Olympics have successfully entered the Zhangjiakou competition area, and during the event, these vehicles shuttled between various venues and news centers as media vehicles.
These 40 hydrogen fuel buses are equipped with a full range of intelligent driving assistance equipment, including ADAS, etc., and the N95 healthy cockpit standard is realized in the car, which can realize the normal start and operation of the -35 °C vehicle, and the temperature inside the car is maintained at 15 °C.
Green building: prefabricated grandstand system, environmental protection, anti-freeze, earthquake resistance
From bidding to preparation, the Beijing Winter Olympics have always adhered to the principles of green, low-carbon and sustainable, and the practice of "green Olympic Games" runs through all aspects. The "green buildings" at the Beijing Winter Olympics are also not lacking in "Made in Shandong".
The National Alpine Ski Center construction project coach seat platform, grandstand, seat and other facilities, manufactured by Qingyun Leading Wellness, the product is environmentally friendly, anti-freeze, anti-earthquake, windproof, anti-skid.
In October last year, Leading Wellness was tasked with installing grandstand facilities for the National Alpine Ski Centre.
Located at the southern foot of Xiaohaituo Mountain in Yanqing County, Beijing, the National Alpine Ski Center is the highest-ranking alpine ski resort in China and the first alpine ski resort in China to meet the standards of the Winter Olympics as the alpine skiing venue for the 2022 Beijing Winter Olympics.
The minimum daytime temperature at the construction site of Xiaohaituo Mountain can reach minus 15 °C, and the wind force is 7-8 levels all year round, which is not only difficult to work at height, but also a huge test for product performance.
Therefore, in addition to the bearing capacity, comfort and other performance of the facility should meet the requirements of the top event, it must also have special properties such as anti-freezing, earthquake resistance, windproof, and anti-slip. Prior to mass production, Qingyun's leading wellness assembly grandstand system and seats were rigorously selected, prototyping and tested.
In order to ensure the delivery on time, "Leading Wellness" adopted the three synchronous working methods of design, manufacturing and installation, overcome one technical problem after another, and completed the construction and installation of the project within 3 months.
It is worth mentioning that the prefabricated grandstand system and seats can be disassembled and transported in a short period of time after use, restoring the original natural landscape and helping the Winter Olympics to be more "green".
Source: Qilu Network Lightning News Reporter: Gao Yanan Zhang Jingxiang
Editor: Hao Ligeng