At present, we should have stripped more than 80000 cubic meters of soil in the whole competition area.
We have made a drainage channel to lead the water to the reservoir, and then collect the water.
In addition, our venue also has a set of intelligent energy comprehensive utilization system, which can use the waste heat generated by the refrigeration system for dehumidification of the whole venue, hot water for ice repair and domestic hot water of the venue.
It should be said that ice water conversion solves the general situation of swimming venues in the peak season of summer and the off-season of winter.
Green winter Olympics is an important concept of Beijing 2022 Winter Olympics.
During the Winter Olympics, it will become an “ice cube” and become a venue for curling events.
For example, we are familiar with the “Water Cube” of the National Swimming Center.
It contains local microbiota, which will promote the growth of local plants.
A remarkable feature of the venues in the Beijing Olympic Winter Games area is to make full use of the existing venues of the 2008 Beijing Olympic Games to realize the function of venue conversion in winter and summer.
The venue will take the lead in using carbon dioxide transcritical direct refrigeration to make ice, and the carbon emission is close to zero.
“Water ice conversion” will realize the concept of sustainable development at a relatively small cost.
Yang Qiyong in the “Water Cube” of the National Swimming Center in Beijing said that in fact, such defects will affect the performance of athletes, whether it is the slight vibration of the venue, the change of air, the change of ice temperature, or the condensation, frost and sublimation of the ice surface within one millimeter.
Yunding Ski Park, located in Chongli competition area of Zhangjiakou, undertakes freestyle skiing and snowboarding competitions in the Winter Olympic Games.
This is the first in the history of the Olympic Games and the world.
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Yanqing competition area: more than 80000 topsoils have been stripped and mixed for repair.
Liu Xinping, director of the Sustainable Development Department of the overall planning department of the Beijing Winter Olympic Organizing Committee, said that in order to reduce the adverse impact on the ecological environment, the Beijing Winter Olympic Games will implement the principle of giving priority to ecological protection in the whole process of venue planning, construction, operation and post competition utilization, make maximum use of existing venues and facilities, and build or transform venues and facilities in accordance with green building standards, Protect the ecological environment of the competition area with high standards and promote the harmony between man and nature.
In the case of all ice, only the refrigeration part can save at least 2 million kwh of electric energy every year.
Beijing competition area: the carbon emission of venue ice making is close to zero.
If you observe it closely, you can also see that the transparent glass on the facade is decorated with white patterns like ice crystals.
At present, the topsoil is stripped off before other units enter the site, and then put into bags for storage.
Once damaged, it is difficult to recover, so we must protect it.
The “ice ribbon” of the national speed skating hall is a landmark venue in the main competition area of Beijing for the 2022 Beijing Winter Olympic Games, and it is also the only newly-built ice competition venue.
Shu Wen, the person in charge of Miyuan tourist resort Co., Ltd., introduced that the melted snow water and natural precipitation can be recycled and stored efficiently, and can be used as snow making water in the snow season, so as to realize the sustainability of regional water resources.
The picture shows Ma Jin, the special design director of the sports technology ice making project of the national speed skating hall.
Photo: Zhao Yu, director of the environmental protection and sustainable development working group of Beijing Beikong Jingao Construction Co., Ltd., introduced that the original ecological restoration measures were taken in the construction of Yanqing competition area, the self owned resources of the competition area were fully utilized, and the artificial disturbance was minimized to avoid the construction of roads, snow roads For the possible loss of topsoil caused by ancillary buildings, it is very necessary to carry out topsoil stripping before construction.
In addition to the originality of architectural design, energy conservation and environmental protection also dare to innovate.
Yang Qiyong, general manager of the National Swimming Center, said that the transformation of existing venues will greatly reduce investment.
However, behind the change of water ice conversion, it is targeted scientific research in many aspects such as site structure, temperature, humidity, lighting and acoustics, so as to ensure that the pool is paved with ice after pumping, and the site is still stable under the change of temperature field.
I think it is also a necessary weapon for the sustainable development of this venue.
Because the facade of the national speed skating hall is spliced by more than 3000 curved glass, it creates 22 ribbons that hover high and low and dance around, like the track left by speed skaters on the ice when they slide in at high speed, symbolizing the combination of speed and passion.
This technology can not only provide a highly balanced ice surface for the competition, but also save energy consumption by more than 20% or even 30% compared with the traditional ice making and refrigeration technology.
We study the physical properties of ice and the risks it brings to the extreme, and eliminate this risk to the extreme.
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There are a lot of environmental protection elements in the Winter Olympics, such as buildings.
The “sustainability” of Yanqing competition area is not only reflected in the post competition utilization of venues, but also throughout the construction process.
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Now all these topsoil have been mixed into the three repair areas, and the effect is also very good.
“Ice ribbon” is an environment-friendly and energy-saving green venue.
It is required to meet environmental protection requirements in terms of venue facilities, technical support and energy use.
Shu Wen said that because the snow will melt after the end of the snow season every year.
If the heat recovery is taken into account, the ice making in the venue is close to zero carbon emission.
Liang Dedong introduced that this topsoil is a very important resource.
About 250000 cubic meters of water can be collected every year for water production in the snow season every year.
Zhangjiakou competition area, the relocation protection base of the Winter Olympic Games in Yanqing competition area: 250000 cubic meters of water are collected every year as snow making water.
The carbon dioxide transcritical direct cooling ice making technology used in the venue is one of the most advanced, environmentally friendly and efficient ice making technologies in the world.
