Compared with natural snow, no matter what form of snow-making equipment, the shape of snow can not be similar to its shape, and it is impossible to realize natural snow with six diamonds.
Natural snowflakes are very light and can fall from the sky, which is beautiful. The snowflakes produced by all funa equipments are more like snow beads, so they are more like ice crystals, and can't be hexahedral snowflakes.
The density of natural snowflakes is about 328kg/m3. The density of artificial snow is about 856 kg/m3. 1950 In March, Americans used Wayne Pierce to make the world's first snow machine with a spray compressor, nozzles and some hoses for watering flowers and trees. He injects water into a special nozzle or spray gun, where it comes into contact with high-pressure air. High-pressure air divides the water flow into tiny particles and sprays them into cold outdoor air. These small water droplets condense into ice crystals before landing, which is the ancestor of the gun (barrel) snow machine.
1In August, 972, German company Külinda (Cleander) was unique by its leading refrigeration technology. After water is converted into ice, borneol is stored in the present by improving the technologies of machinery, transmission, hydraulic pressure and fluid, and then crushed and blown out by a high-speed air cooler, so as to realize phased snow-making equipment similar to snowflakes.
In 2002, as a subsidiary of German Külinda Company, Focus Thawing Shanghai improved the key cooling and transmission technology of funa system, and realized the function of closing and drying snowflakes to make snow in summer.
In 20 14, as one of the suppliers of ice and snow equipment for Sochi Winter Olympics, FOCUSUN provided seven sets of Fu Na systems with a daily output of 300 cubic meters for the Winter Olympics. 1980 In February, Lake Placid 13 Winter Olympics in the United States, Americans with deep pockets used Fu Na machines to make snow for the first time in the history of the Winter Olympics, and the confusion of "relying on the sky to eat" in the Winter Olympics was fundamentally alleviated.
1988 During the 15 Winter Olympic Games held in Calgary, Canada, the organizers spent nearly $4 million to buy a computer-controlled snow maker, and a yeast-like bacterium was added to the snow, which made the sparkling snow bigger and firmer, even if it was blown by warm air. During the Winter Olympics, the temperature was as high as 18℃. Because of the special artificial snow, it was named "Artificial Snow Games".
18 Winter Olympics held in Nagano, Japan in 1998, in view of the serious lack of snow in Nagano Ski Resort, the leaders of the Organizing Committee went to a local temple with a history of 1400 years to pray for snowfall. Unexpectedly, it rained heavily, and the Secretary-General of the International Snow Sports Federation laughed at himself: "The skiing competition should become a water skiing competition." The most dangerous thing is that the rain on the snow surface freezes into a hard shell and becomes extremely smooth. Nagano Olympic Games is the worst winter Olympic Games in history.
20 14 The Organizing Committee of Sochi Olympic Games built a large-scale snow storage facility near the stadium, and urgently stored 450,000 cubic meters of snow. The snow is covered with a 40 cm thick layer of specially treated sawdust. The cost of this item alone reached 250 million rubles (about 46 million yuan). To be sure, the organizing committee also purchased about 500 snow machines from the United States, China and Switzerland. Using the natural water resources of two nearby worker lakes and a mountain stream, nearly 90,000 cubic meters of water can be turned into snow, which is enough to cover two feet and 500 football fields. Barrel type
At present, all ski resorts in China use snow cannons to make snow at sub-zero temperatures. Due to the great influence of temperature and humidity, the phenomenon of warm winter is serious, and the amount of snow produced in winter is limited, which can not meet the normal business of ski resorts. Funa Machine is greatly influenced by the environment, the atmospheric temperature can't reach below -3℃, and it can't make snow when the temperature is above 60%.
Its workflow is that high-pressure water from high-pressure water pump and high-pressure air from air compressor are mixed at double inlet nozzles. After the air leaves the nozzle, it takes away heat through natural evaporation and volume expansion, so that the droplets condense into ice crystals. However, the problem is that the smaller the water droplets, the greater the evaporation, the more water loss and the lower the snow-making efficiency. In addition, it can only work below freezing point, which is highly dependent on the external environment temperature and has low snow-making efficiency.
Borneol crushing type
With the intensification of the greenhouse effect, the temperature rises in winter, reaching the limit that only Fu Na machines can make snow. Ski resorts in some areas cannot even continue to operate. How to overcome the lack of snow has become the biggest problem in all ski resorts.
The working process of the borneol crushing snow machine is to first make water into flake ice (1.5MM-2.0MM) and store it in a container with a refrigeration system. When snow is needed, it is quickly transported to the designated snow-needed area by a high-pressure closed fan through the crushing cavity. Compared with the bucket snow remover, it has the following advantages:
1, mass snow production, high efficiency-reaching 1000 cubic meters/day.
2. The shape of snow is closer to natural snow, and the aesthetic feeling is more than that of bucket.
3, in line with the ultra-long distance transportation-up to more than 200M m.
4, automatic ice making, automatic accumulation-automatic ice mouth accumulation at night when no one is there.
5, no weather temperature limit, no water temperature limit, no humidity limit. It snows normally for 360 days throughout the year.
6. Reduce the waste of water.
7. Reduce labor costs.
8. There is no pollution. 1- SMI is one of the great manufacturers of bucket snow machines in the world.
2- Germany FOCUSUN is the world's leading manufacturer of artificial snow.
3- INNOVAG, a German company, is a global pioneer in indoor snow making.
4- Technoalpin, Austria, the leading enterprise of gun snow machine.