Beijing News Express (reporter Wang Jingxi) Recently, the snowmaking work of shougang ski jump has entered the countdown. Seven snow guns and four snow cannons have been prepared to make snow according to the requirements of snow volume and snow quality in different areas of the track.
A cooling tower outside the snow pump room for cooling the water. Photo courtesy of Shijingshan District
"Snowmaking will start depending on weather conditions, initially scheduled to start within a week and end around January 20, lasting about a month. During this period, the work mainly includes four stages: snowmaking in the track body, snow storage in the snow storage area, shaping and snow replenishment with the secondary shaping team. Liu Yuchuan, venue and infrastructure manager of the Shougang Ski JumpIng Stadium Operation Team, said.
Snow pump room. Photo courtesy of Shijingshan District
The Shougang Ski Jump has used 7 snow guns and 4 snow cannons to meet the different requirements of snow volume and snow quality in the departure area, landslide, jumping area and landing slope. "As the name suggests, snow guns such as guns, snow cannons like cannons, these two kinds of equipment have their own characteristics in snowmaking work, snow cannons have the characteristics of large snow output and long head, compared to snow cannons, snow guns have the advantage of finer snow and better snow quality." In order to cope with the characteristics of late cooling and short cold wave time in Beijing, we have specially added 4 snow cannons on the basis of the original 7 snow guns to ensure the quality of snowmaking and improve the efficiency of snowmaking. Han Dong, mountain operation manager of the Shougang Ski JumpIng Stadium Operation Team, said, "At the same time, we will also choose to start the snow machine under the most suitable conditions through real-time monitoring of air temperature, humidity, etc., to avoid waste of water resources as much as possible." ”
Snow guns. Photo courtesy of Shijingshan District
It is understood that the snow gun has 9 control gears, with a gear adjustment function, not only can be adjusted according to different gears to create dry powder snow and wet snow with different water content, but also can be controlled by adjusting the amount of water, air output and other ways to control the quality of snow. "We have adopted an intelligent snowmaking system that meets the highest environmental protection standards and is more efficient and water-saving, which can adjust the proportion of water used according to 9 levels according to weather conditions, and snowmaking can save about 20% of water per cubic meter." Liu Qi, head of snowmaking in the stadium team, told reporters.
In addition, the snow pump room located on the taipei side of the big jump and the water intake ports on both sides of the big jumping platform jumping area have completed preliminary commissioning, and the pump room mainly includes snowmaking control system terminals, reservoirs, cold water towers, water pumps, etc. "If you take the entire snowmaking system and the human body as an analogy, the snow pump room is like the heart of the human body, the pump room uses the pump to pressurize the water supply pipe to transport to various points to ensure that the snowmaking equipment has sufficient water supply." Han Dong said. The snowmaking system has been inspected and maintained, and the final commissioning of the pump room, water supply and power supply lines before the competition is currently being carried out, and the line load and the connection point of the snowmaking equipment are finally confirmed according to the snowmaking plan.
Beijing News reporter Wang Jingxi
Edited by Fan Yijing Proofreader Chen Diyan