Ice sculptures, Ice figures, Ice towns in the winter season. How to make artificial snow - the secrets of the "snow gun" What are the best snow guns
06.03.2017 08:38
Today, snow guns are an indispensable thing in various fields. This is a snow making device with a powerful fan. Snow cannons are used in auto and aircraft construction, in the national economy. But they are especially popular in the field of sports recreation, in ski resorts. With the help of this miracle device, it is possible not only to create artificial snow, but also to spray it in the right direction at any distance.
Why and in what cases do the organizers of sports competitions and outdoor activities resort to the creation of artificial snow cover? The first reason is that there is not enough snow on the ski slopes or in areas where there are camp sites for active winter recreation. Also it is impossible not to note the quality of the resulting snow. If real snow consists of snowflakes, then artificial snow is completely made of frozen drops of water. This increases the humidity and density of the resulting snow cover, it remains even in all areas. Thus, it becomes possible to create the same conditions for all participants in sports events (which take place in an area with artificial snow cover).
Also, artificial snow does not melt longer than usual. What is it connected with? The answer again comes down to the composition of the snow. The particles of the resulting snow in their appearance are more like small grains, they do not crystallize to real snowflakes. In addition, snow from cannons is cleaner and more uniform, it does not contain foreign impurities, dust and other substances that contribute to rapid melting.
Snow production: myth or reality?
Nowadays, snow production is not a myth, but a reality. You can get snow of the desired quality with the help of a miracle of technology - snow guns. So, the first function of a snow gun is to make snow. How does it work? What determines the quality and physical properties of the produced snow flakes?
Artificial snow can be obtained in different ways - it all depends on the temperature of the water and air, as well as the duration of the flight from the atomizer. Snow flakes are mixed with air and then released into the atmosphere. Snow is softer in consistency if it is in a state of flight longer. If snow fell to the ground very quickly, it would be heavy and wet. We can say that the whole thing is in the device of the gun. Due to the fact that its fan is powerful and can spray water over very long distances, soft snow is obtained.
A snow gun is a type of snow gun that is based on a powerful fan. Thanks to this, the artificial snow system can operate in windy weather and spray snow in a given direction at an angle of rotation from 15 to 60 °. This allows you to quickly form flat or difficult steep tracks.
Areas of application for snow guns
Snow cannons have become indispensable in a variety of fields. Of course, these methods of snowmaking have gained the greatest popularity in the field of ski holidays, as well as in a sports environment.
The organizers of sports competitions resort to the use of artificial cover of snowboarding and ski slopes, even in areas where there is enough snow. The secret is that artificial snow will be of the same quality throughout the entire competition period. And this allows you to create equal competitive conditions for the participants of the competition.
In addition, snow cannons have found their application in the areas of the national economy (protection of crops or plantings from frost during a snowless period), as well as in aircraft and automotive industries (test-drives of tires, anti-icing systems, etc.)
The principle of snow formation in a snow gun
The main function of a snow cannon is to produce snow of the required quality (good snow is at least 2 times lighter than ice). Factors such as air temperature, water temperature, humidity and flight time affect the physical characteristics of the flakes.
This is due to the fact that snowflakes are formed as a result of spraying the water supplied through the nozzles, mixing it with discharged cold air and ejecting it into the atmosphere under pressure. The droplets break up into nucleation nuclei, which, in turn, combine with other microscopic droplets. The longer the core is in the air, the softer the snowflake will be.
Therefore, the fan of the snow gun, thanks to the ability to spray water at a distance of 5 to 60 meters, contributes to the formation of large and soft snow. If the kernels fall quickly to the ground, or are sprayed with little pressure at a high enough temperature, the snow will be wet and heavy.
Benefits of a snow gun
A snow gun is, as a rule, a mobile structure on a wheeled or tracked chassis. The mobility of the system allows you to quickly cover a large area for snowmaking. Water is supplied from the pipeline through a hydrant or taken from mobile tanks.
To obtain clean snow, the system is equipped with a filter, and the water stream should not contain impurities and particles larger than 200 microns.
The system is capable of operating at pressures as low as 5 bar. The maximum pressure must not exceed 40 bar.
High-quality snow is carried out at a temperature of -3-7°C. The average productivity of a snow gun is 120 m3 of snow per hour.
The Ratrak-Service company offers you high-performance fan-type snow guns of the 600 ECO and SN 900 M brands with automatic and manual control.
Artificial snow is formed from small droplets of water sprayed by nozzles into a strong stream of cold air created by a fan. The gun can operate at air temperatures below -1.5 degrees Celsius. Snow cannons are often used in ski resorts to supplement or replace natural snow cover and extend the ski season.
Features of artificial snow
Fans of skiing believe that artificial snow is inferior in its characteristics to natural snow. This is because natural snow consists of snowflakes, and artificial snow consists of not always completely frozen drops of water, as a result of which both the density and humidity of the snow cover thus created are much higher. Artificial snow lies longer than natural snow, thereby affecting the soil, vegetation and hydrological regime of the surface.
Snow throwing performance
The performance depends on the power of the freezer, the snow blower and the motor that drives the mechanism. The average performance of a snow blower is approximately several hundred m² per minute.
see also
|
||||||||||||||||||||||||||||||
Write a review on the article "Snow Cannon"
An excerpt characterizing the Snow Cannon
At the glow of the first fire that broke out on September 2, from different roads, with different feelings, the fleeing and leaving residents and the retreating troops looked.That night the Rostov train stopped at Mytishchi, twenty versts from Moscow. On September 1, they left so late, the road was so cluttered with wagons and troops, so many things were forgotten, for which people were sent, that that night it was decided to spend the night five miles beyond Moscow. The next morning we set off late, and again there were so many stops that we only reached Bolshiye Mytishchi. At ten o'clock, the Rostovs and the wounded who were traveling with them all settled in the yards and huts of a large village. The people, the coachmen of the Rostovs and the batmen of the wounded, having removed the gentlemen, had supper, fed the horses, and went out onto the porch.
In a neighboring hut, Raevsky's wounded adjutant lay, with a broken hand, and the terrible pain that he felt made him moan plaintively, without ceasing, and these moans sounded terribly in the autumn darkness of the night. On the first night, this adjutant spent the night in the same courtyard where the Rostovs stood. The countess said that she could not close her eyes from this groan, and in Mytishchi she moved to the worst hut only in order to be away from this wounded man.
One of the people in the darkness of the night, from behind the high body of the carriage standing at the entrance, noticed another small glow of the fire. One glow had already been visible for a long time, and everyone knew that it was the Little Mytishchi burning, lit by the Mamon Cossacks.
“But this, brothers, is another fire,” said the batman.
Everyone turned their attention to the glow.
- Why, they said, Mamonov Cossacks lit Maly Mytishchi. Evgeny Tsiporin / Alexander Kozlov / Alexander Butenko
Evgeny Tsiporin / Alexander Kozlov / Alexander Butenko
(Gorimpeks group of companies)
Russia is a country with the largest (in the future) ski equipment market, as well as with the world's largest opportunities for the construction and operation of modern ski centers. Today, the vast majority of Russian skiers do not ski in the best conditions, which means that there is a shortage, which means that the market for the construction of this kind of sports facilities is super promising, ski centers will be in demand for sure. However, this market has a number of features. It is worth noting that most of the Russian ski centers that exist in reality or on paper are located close to large cities, which is like a set of “pluses” (it is convenient to get from the city limits to the ski slope, it is convenient to organize the work of the ski center itself in terms of communications, etc.). etc.), and a set of "minuses" and about one of these "minuses" it is necessary to say in detail.
The fact is that most Russian cities, and especially the “million-plus” cities around which ski centers are gathered, are located in an area with unstable winters, with changeable weather from November to March and with priceless snow cover instantly disappearing in the event of a thaw. Everyone remembers the "monstrous" winter of the 2006-2007 season, which beat all indicators in terms of high temperatures - up to +14 ° C in Moscow in January, and such "records" were set throughout the European territory of Russia.
Naturally, such natural disasters “kill” any demand for the services of ski centers, nullify all efforts for construction and improvement: there is no snow - none of the skiers will come to look at the green grass that has melted through the frozen mud. At the same time, even such “minuses” can be turned into “pluses” using modern technologies, namely, by installing mechanical snowmaking systems at ski centers, simply speaking, systems that make artificial snow.
Such technologies have been used in the West for many years, they are carefully developed and allow even in the conditions of the city (for example, the annual stage of the World Cup in cross-country skiing in Dusseldorf) to make a full-fledged ski track.
However, these technologies have a number of features that must be taken into account.
Almost all ski centers in Europe use snow production with snowmaking systems during periods when there is not enough natural snow for full skiing. The process of artificial snow formation requires three components - low ambient temperature, a significant amount of water and, finally, the presence of compressed air. When obtaining snow with the help of snow generators (snow guns), significant volumes of water and electrical power are used. This article includes the following sections:
1. Snowmaking systems
2. Reservoirs
3. Wet/Dry Bulb Temperature
4. Special additives
5. Water pre-cooling systems
6. Management of snowmaking systems
7. Air compressors
8. Pipelines
1. Snowmaking systems
A professional approach to making quality snow is very important and many of the snowmaking system suppliers say "Snow making is an art". Snow quality from snowmaking systems can range from "very dry" to "very wet". Trails for beginners, for mass use, are not the same as trails for professionals, and require a completely different thickness of snow cover and snow quality. The quality of the snow also affects the convenience of the process of distributing it along the ski slopes. For example, to obtain a track of exceptional quality, it is often necessary to lay a layer of dry and light snow on top of the main layer of wet heavy snow.
Snowmaking systems reproduce the natural process of snow formation. In nature, snow forms as a result of the condensation of water vapor into ice microcrystals at low ambient temperatures and low relative humidity. Pure water freezes (theoretically) at temperatures below 0°C when several water molecules join together to form what is called an embryo, seed, or nucleation center. Nearby water molecules continue to attach to the embryo and form ice crystals. This process is called homogeneous nucleation. If impurities are present in the formation of ice crystals in water, then this process is called heterogeneous nucleation. Impurities serve as nucleation centers (seeds) for the formation of ice crystals. Heterogeneous nucleation is possible even at positive ambient temperatures. The temperature at which ice crystals form on impurities is called the heterogeneous nucleation temperature. Snowmaking machines, or snowmakers, use these physical processes to make snow using cooling compressed air, water, and sometimes additives that are used as crystallization catalysts.
There are three types of snow guns (snow guns) - internal mixing snow guns, external mixing snow guns, and finally fan snow guns. Factors that are considered when choosing the type of equipment include:
Wind speed;
Direction of the wind;
Ambient temperature;
relative humidity;
Availability of compressed air;
Availability of electricity;
The location of the slopes to the cardinal points;
The following are brief descriptions of the three types of snowmaking systems:
Internal mixing system - a system using the mixing of water and air in the internal chamber of the snow gun nozzle. When the mixture of water and compressed air leaves the nozzle, this mixture expands and the thermodynamic effect of cooling (below 0 °C) occurs. Tiny water droplets freeze to form microcrystals, which in turn become nucleation centers. On such nucleation centers (seeds) snow flakes are formed from larger droplets.
External Mix System - Another type of water-air system. Such systems provide for the exit of compressed air and pressurized water through separate nozzles of the snow gun. The compressed air expands and greatly cools the microscopic water droplets coming out of the water nozzles. In this case, nucleation centers are formed. In systems with external mixing, the jet velocity is lower than in systems with internal mixing. For this reason, external mixing snow guns are mounted on towers to give water droplets enough time to nucleate and form snow before they reach ground level. Sometimes systems with external mixing are used without the use of compressed air and fans. At the same time, expensive additives, high pressures and chilled water are used to successfully produce high-quality snow.
Fan systems - Fan systems use fan driven air instead of compressed air to suspend water droplets in the air. In this case, the droplets are in the air for a sufficient time to significantly cool and freeze. Fan systems are often also equipped with devices for nucleation. Typically, such a device consists of a small air compressor mounted directly on the snow machine and a circuit of nucleating air nozzles. In this case, the mixing of compressed air with water and subsequent crystallization takes place already in the environment. This type of guns is the most popular and widespread.
Snow guns that are used in both internal and external mixing systems do not require an external power source at the snow gun installation site. But, despite this advantage, such systems require centralized compressor and pumping stations. Fan guns require the supply of power cables directly to the installation site of the snow guns to power the fans and air compressors. Internal mixing and fan gun systems operate over a very wide temperature range and control snow quality through the use of fans and air compressors. These technologies are best suited for wide trails and trails that are scheduled to open at the very beginning of the winter season for initial snow coverage. External mixing systems are more economical in terms of energy consumption, but allow operation in a narrower temperature range. Another disadvantage of external mixing systems is the high sensitivity of snow guns to wind. External mix systems require 30% more snow grooming work compared to internal mix/fan systems. Such systems are recommended for narrow trails and trails that open later. When choosing the type of snow guns, not only the initial cost of buying snow guns is taken into account, but also the cost of the system itself (towers, pumping / compressor stations). The efficiency and the possibility of using this type of snow guns in specific slope conditions are also taken into account. This takes into account the temperature of the snow, the type of terrain, the width of the track, the desired date for the start of the season, the requirements for the noise level.
Table 1. Advantages and disadvantages of certain types of snowmaking systems
|
Type of snowmaking system |
Advantages and disadvantages |
|
With internal mixing |
Advantages: Low sensitivity to wind, operation at high temperatures, low weight of the snow gun, the possibility of snowing wide trails, the ability to regulate the quality of snow. Disadvantages: Low energy efficiency, requires compressed air supply from the compressor station, high noise level from the air compressor. |
|
With external mixing |
Benefits: Greater energy efficiency compared to internal mixing systems as less compressed air is required. Low noise, easy operation. Disadvantages: High sensitivity to wind, narrow operating temperature range, after installation it is difficult to move to another place, it is possible to adjust the snow quality only in a very narrow range, high losses due to wind and sublimation. |
|
Fan systems |
Advantages: Minimal compressed air required, most energy efficient technology, low noise level, wide range of snow quality adjustment. Disadvantages: Fan snow guns are difficult to move up slopes and require snow groomers to move as the equipment is bulky and heavy. |
2. Artificial reservoirs
Getting snow requires a significant amount of water. To create a snow cover 16 cm thick on an area of 60 by 60 m, 277,500 liters of water are required. Such a significant demand for water resources is often a problem for ski centers, since water sources with a significant supply of water are required. Water abstraction from natural sources during the winter season with low flow rates can harm nature. To protect the inhabitants of water bodies and the possibility of using small streams and rivers, artificial reservoirs of snowmaking systems are usually created. The use of artificial reservoirs also makes it possible to minimize the cost of transporting water through pipelines. Such savings due to the forces of gravity are possible provided that the reservoir is located above the installation level of the snowmaking system. At the same time, the costs of building an artificial reservoir are paid off by saving electricity for raising water for several years.
3. Wet/Dry Bulb Temperature
The temperature of the dry bulb is taken as the ambient temperature. Relative humidity is a quantitative indicator of the content of water vapor in the atmosphere. The relative humidity of the ambient air plays a very important role in snow production. An increase in the amount of water vapor in the air leads to a decrease in the rate of cooling of water droplets to nucleation temperatures (crystal formation). When spraying water droplets into the air at low humidity, that is, at a low content of water vapor, part of this water evaporates and thereby cools the surrounding air, because. In order to evaporate water, it must be heated until the latent heat of evaporation is reached. It takes 539 calories to evaporate 1 liter of water, while it only takes 80 calories to freeze it. This means that the evaporation of one liter of water allows you to freeze 6.7 liters of water at a temperature of 0 ° C (it takes only 1 cal. to cool water by 1 ° C and this is the reason that the temperature of the water does not affect the thermal balance too much snow production process).
As a first approximation, the cooling effect of the evaporation process can be taken as follows: a decrease in the actual dry bulb temperature by 0.5 °C for every 10% drop in relative humidity. Examples:
Air at -2°C and 50% RH has the same cooling capacity as saturated air (100% RH) at -4°C.
Air at 0°C and 40% relative humidity has the same cooling capacity as saturated air at -3°C.
Wet bulb temperature (humidity temperature) takes into account two factors at once - ambient temperature and relative humidity, which is why this parameter is used when designing snowmaking systems. The wet bulb temperature is the temperature of the microdroplets coming out of the nozzles of the snow gun, which is reached when all heat exchange processes with the environment are completed. All automatic systems (including water management) installed in western European countries typically start producing snow at -4°C wet bulb. At the same time, it is believed that the production of snow at higher temperatures is unproductive and unreasonably expensive. Only a few resorts in the warmer parts of Europe, such as Spain and Portugal, begin to produce snow at -2°C wet bulb, as there is no other choice.
4. Special additives
To form water crystals at high ambient temperatures, special water additives are used. The molecules of such additives play the role of nuclei (seeds), around which the formation of crystalline structures takes place. As mentioned above, this process of crystal formation is called heterogeneous nucleation. As special additives, special proteins (proteins) are used. Such additives save energy and produce good quality snow at marginal temperatures. The decision to use special additives usually depends on the purity of the water used and the presence / absence of natural substances in it that contribute to the crystal formation process. Often, water from natural reservoirs already contains a sufficient amount of the necessary substances, and, therefore, the use of additives is not required.
5. Cooling systems
At water source temperatures above +5°C, special cooling systems are used to cool the water before it is fed to the snowmaking system. A decrease in water temperature has a positive effect on the efficiency of snow formation by reducing energy losses for water evaporation. Cooling systems can have various designs and principles of operation. Both cooling towers (cooling towers) and once-through cooling systems can be used. The use of cooling towers allows the ski season to open earlier and produce snow at higher ambient temperatures.
6. Management of snowmaking systems
One of the important points when choosing equipment for a snowmaking system is the choice of control type, since further operating costs will largely depend on this.
Description of work and advantages of automatic systems:
Information about the weather conditions of the environment (humidity, temperature, wind speed and direction) is supplied as a standard analog or digital signal to the control system. The automation system assesses the weather conditions and automatically (without the participation of the operator) regulates the technological parameters of the snow production process. The operator, if desired, can also use a computer to set the operating parameters of the process. Automatic control allows you to significantly reduce the cost of pumping water and air (no need for unnecessary pumping of excess) and maintenance of the system. The time needed to set up the system is greatly reduced, since the response time of the system components is only a fraction of a second. At the same time, the efficiency of automatic systems with internal mixing and fan systems increases by 30-50% compared to manual systems.
For systems with external mixing, the increase in efficiency is negligible, since such systems do not require constant adjustments. With sudden changes in weather conditions, it may be necessary to move from one area to another with snow. The software allows the operator to easily concentrate on such tasks, while adapting to weather conditions is provided by the system itself. The control system automatically adjusts the water pressure to adapt the snowmaking system to the weather conditions. Moreover, the automatic air compressors regulate the pressure in the air line and, if necessary, distribute the load between the compressors, and turn them on / off depending on the air demand of the system. The software allows continuous monitoring of process parameters (water temperature, water and air flow/pressures).
Manual systems take one to four hours to start up and one to three hours to shut down. At the beginning of the season, the time intervals during which it is possible to produce high-quality snow are from 6 to 8 hours. Starting and shutting down automatic systems takes seven to fifteen minutes. Automatic systems continuously monitor the quality of the snow produced by continuously adjusting the operating parameters of the snow guns. Manual systems, on the other hand, require control and adjustment by qualified personnel directly at the installation site of snow guns in case of changing weather conditions, which negatively affects the quality of snow and increases its cost. The increase in the operational efficiency of snowmaking systems compared to manual systems is 40-60%.
The reliability and safety of the systems are the determining factors when choosing the type of control, since the systems use very high water and air pressures. A properly installed automation system allows you to control these parameters without operator intervention in the operation of potentially dangerous elements of the systems. The system of instant notification of emergency situations and the state of the equipment allows the operator to immediately correct the operation of the system.
Finally, automation systems create archival report files on all aspects of the snow generation process (electricity consumed, water resources consumed, quantity and quality of snow produced, as well as economic analyses).
7. Air compressors
The presence of an air compressor system is often an essential condition for the existence of a snowmaking system. Compressed air, when it leaves the nozzle of the snow generator, serves to obtain a dispersion of microdroplets in the air. These microdrops are the "heart" of future snowflakes. For systems with internal mixing, the use of compressed air is a prerequisite for obtaining an air-to-water mixture. For such systems, the process of formation of snow crystals depends on the duration of the presence of droplets in the air and on the cooling effect during the expansion of the water-air mixture at the outlet of the nozzle. External mixing systems and fan systems are based on these same physical laws.
The main source of energy consumption in snowmaking systems is air compressors. Typically, 40-70% of energy consumption is accounted for by air compressors and their automation. Air compression systems consist of compressors, an air supply system, automation elements and, sometimes, systems for storing compressed air. The initial cost of purchasing air compressors is only part of the underwater capital cost iceberg, as the annual energy bill is comparable to the cost of purchasing the compressors themselves. Therefore, it is very important for snowmaking systems to choose a compressor with high efficiency and efficiency. The tightness of air supply systems also plays an important role, since if it is leaky, losses of up to 20-30% of the produced compressed air are possible.
8. Pipelines
Particular attention in mechanical snowmaking systems is given to pipelines, on which the quality, reliability and durability of the entire system largely depend. European companies, based on many years of operating experience and taking into account the specifics of installation in mountainous conditions, have developed special types of pipes, technologies for laying and connecting them, providing an optimal ratio of speed, quality and costs for the water supply system.
For example:
When using relatively expensive quick-disconnect pipes with external and internal plastic coating and a 30-year service life, high water quality, maximum speed and minimum cost of construction work and further operation are ensured, since there is no need for long-term use of special equipment. technicians, highly qualified assemblers, welders, seam testing, etc.
When using the cheapest welded, long and heavy "black" pipes, not specifically designed for use in rugged terrain (the laying of which requires special equipment capable of working on rocky soils with large slopes, special technologies for high-quality welding, "anchoring", installation, waterproofing, etc.) not only increases the total cost of building a water pipeline by 3-4 times, but because of the low service life (about 5 years) and water quality (rust), the operating costs for all equipment of the mechanical snowmaking system as a whole (pumping stations, hydrants, snow guns) increase sharply.
The best option at a low initial cost and acceptable quality (if the timing of favorable weather conditions for the work) are light socket welded galvanized pipes. But the expediency of their application must necessarily be determined on the basis of the specifics of the local conditions in each specific case.
We hope that the above data will convince potential investors and organizers of modern ski centers that when installing mechanical snowmaking systems, it is necessary to take into account all factors related to both the technique and the place where the system will be mounted. In addition, the mechanical snowmaking system always needs to be installed and maintained ONLY by professionals and "amateur" in this process is unacceptable.
To draw up a feasibility study The organizer of the ski route must submit a topographic survey of the area on a scale of M 1:1000 or M 1:2000 with the following data:
Areas to be covered with snow;
Schemes of ski slopes and infrastructure buildings;
Place and nature of water intake (debit of water cubic meters per hour);
Time for initial snow making with 30cm snow layer thickness (usually taken 50-200 hours);
Data on air temperature and humidity or wet bulb temperature (to start the system at the beginning of the season, to work during the season);
Data on prevailing wind direction and speed;
The degree of automation of the system (manual, semi-automatic, fully automatic centralized).
To plan ANY investment, both in size and timing, in a mechanical snowmaking system, several factors MUST be considered, namely:
1. Any ski complex that claims to be used intensively and efficiently needs mechanical snowmaking systems.
Even in areas with sufficient natural snow cover, the use of mechanical snowmaking systems allows not only to extend the season by at least a month, increasing profitability, but also ensures the stability of planning and holding various events and competitions, guarantees the presence of stable snow cover on tracks with intensive use, allows you to create specialized snow structures (slides, wide start- finish", etc.), which, in turn, dramatically increases the liquidity of the complex as a whole. And in the conditions of "global warming", the use of mechanical snowmaking systems becomes especially important.
2. Snowmaking system is a complex of engineering structures and devices, which necessarily includes:
An artificial reservoir for storing water (if there is no natural one - lakes or rivers);
Water intake (submersible, borehole pumps);
Water filtration system;
Equipment for cooling water (cooling tower or once-through cooling), if necessary;
Main pumping/compressor stations (the pumping station can be mobile, in some types of snowmaking systems the compressors are mounted directly on the guns)
Water/air supply (pipelines, hydrants, drainage system)
Measuring equipment (weather and wind stations, pressure and water / air flow control devices, etc.)
Snow guns of various types (water-air with internal and external mixing, fan multi-nozzle and with a central nozzle), stationary or mobile
Snowmaking control systems (PLC (programmable logic controller) units, control cables or fiber optic network, PC in centralized control, radio control modules)
Power supply from the transformer substation (connectors for connecting guns, electric power cable).
Snowstar mechanical snowmaking systems. Design, installation, repair, service.
The official representative of Snowstar in Russia is the Gorimpex Group of Companies.
We have the lowest prices!
Below is a list of snow guns offered for sale, their brief characteristics and photos. All photos can be enlarged by clicking on them.
1. Nivis® Ecostick snow gun
Special offer!!!
LLC "VS Park" is the only official dealer of the Italian company Nivis in Russia. Only our company offers Nivis® Ecostick snow guns for sale.
The Nivis® Ecostick snow gun is the only snow gun in the world with injection technology that does not require an air compressor or central compressed air supply. Special patented Nivis® injector nozzles, using directly atmospheric air, create a water-air mixture, which is then sprayed through the head nozzles. Nivis® snow guns of the Ecostick series operate without the use of electricity.
Specifications for the Nivis® Ecostick Snow Gun
| Nivis® Ecostick | duo | Trio |
| Number of nozzle groups | 2 | 3 |
| Control | Manual | |
| Water consumption | 2 -10 m 3 per hour | 2 - 16 m 3 per hour |
| Electrical connection | Not required | |
| Operating pressure | Min. 20 bar | |
| Shotgun tube weight | 25 kg. | 58 kg. |
| Weight of individual components | Max. 16 kg. | |
| Height | Up to 10 m. | |
| Foundation | Mine / reinforced concrete / anchor | |
Benefits of compressorless snowmaking with Nivis® Ecostick
– Energy savings of about 4 kW per gun, which is usually consumed in compressor snowmaking systems.
– Cost savings on the purchase of compressors and air ducts.
– Savings on service and maintenance costs for compressors (eg oil change).
– Savings in service work due to the simple, static design of snowmaking systems.
– Environmentally friendly, resource-saving technology.
– Due to the fact that Nivis® systems are compressorless, the use of Ecostick spears when expanding existing snowmaking systems is possible without problems. Nivis® systems are compatible with any installation.
– Possibility of using many single-stage guns at limiting temperatures instead of fewer multi-stage guns, since the need for compressed air, regardless of the number of guns, always remains zero.
– Easy maintenance of manual installations.
– Possibility of a snow system with zero electricity consumption when connected to a water supply with its own pressure.
– The most efficient, reliable and innovative snowmaking method thanks to savings in energy, equipment weight and materials, as well as reducing noise pollution and operating costs.
2. Snow gun Vector SGS-8
This snow gun is produced in-house. During the 2016-2017 season. at the ski complex "Zayachya Gora" 2 such snow guns were operated. Currently, the number of these snow guns has been increased to six. They have established themselves as reliable and productive snow guns.
All components are in stock and, if necessary, can be sent within a day.
Technical characteristics of the snow gun Vector SGS-8
We have the lowest price!
And if you find somewhere else cheaper - we will make a discount!
3. Snow gun Demac SET-AMK
Technical characteristics of the snow gun DEMAC SET-AMK
| Year of issue | 2005 | |
| Serial number | S 10 05 840 | |
| snow performance | 30 m 3 per hour | |
| Fan power | 15 kW | |
| Compressor power | 7.4 kW | |
| Heating | 1.6 kW | |
| Total power consumption | 24 kW | |
| Current strength | 48 A | |
| Voltage | 400V | |
| water pressure | 10 – 50 bar | |
| Max. water consumption | 530 l/min. | |
| Number of water nozzles | 48 | |
| Number of nucleation nozzles | 24 | |
| Turn | 360 degrees | |
| Weight | 810 kg. |
Country of origin: Austria.