CN111829232A - Indoor snow making system - Google Patents
Indoor snow making system Download PDFInfo
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- CN111829232A CN111829232A CN201910321175.5A CN201910321175A CN111829232A CN 111829232 A CN111829232 A CN 111829232A CN 201910321175 A CN201910321175 A CN 201910321175A CN 111829232 A CN111829232 A CN 111829232A
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- snow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
- F25C3/04—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow for sledging or ski trails; Producing artificial snow
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- General Engineering & Computer Science (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The invention relates to the technical field of snow making, and discloses an indoor snow making system, which comprises a variable working condition refrigeration host (1), a snow making machine (9), a compressed air system (15) and an ice storage coil water tank (16), and is characterized in that: the heat exchange pipes in the snow making machine (9) are respectively connected with working medium pipelines which are sourced from the variable working condition refrigeration host (1) and used for supplying heat and cold, the variable working condition refrigeration host (1) has the functions of supplying heat and cold, and the snow making machine (9) has a first state and a second state: in the first state, the snow maker (9) utilizes the cold energy from the variable working condition refrigeration host (1) to cool the circulating air in the snow maker (9) so as to cool the snow core generated by the compressed air system (15) and the ice storage coil water tank (16) and complete snow making; in the second state, the snow making machine (9) utilizes the heat from the variable working condition refrigeration main machine (1) to realize defrosting operation. The system can also comprise a cold air system, a fresh air system and the like.
Description
Technical Field
The present invention relates to a snow making technology for indoor ski fields, ice and snow parks, and snow houses (hereinafter referred to as "snow houses"), and more particularly to an indoor snow making system for snow houses.
Background
The existing indoor snow making technology has two types, one is that water is firstly frozen into ice, and then the ice is processed into snow, and the method has low efficiency and large workload and is suitable for making a small amount of snow; the other method is that water, high-pressure air and water are mixed to generate snow nuclei, and then the snow nuclei are directly sprayed on a snow hall and cooled to snow by depending on the room temperature of the snow hall.
The second method has the defects that cold air from a snow hall is used for cooling to form snow based on energy evaporation, water is sprayed indoors, the cold energy of the snow hall is consumed in the process of water mist falling for cooling and snow forming, part of water mist crystallizes to form snow according to the difference of the cold energy in the snow hall, the other part of water mist falls on the surface in the form of water mist, and the extremely low ground temperature needs to be kept by using a ground cooling system for cold crystallization to form snow; secondly, the installation height is limited, the vertical distance of water mist falling is determined by the installation height of the snow making machine 9, the shorter the distance is, the shorter the stagnation time of the water mist in the air is, the shorter the cooling time is, the snow forming rate and the snow quality face great challenges, and the evaporation type snow making installation height needs about 18 meters according to experience; thirdly, the snow has high moisture content, the temperature of the snow making environment is required to be between 6 ℃ below zero and 10 ℃ below zero or lower, the dependence degree on the environment is high, the humidity and the room temperature fluctuation of the snow hall can be increased during snow making, the latent heat can be dissipated to the snow hall in the process of forming snow by water mist, a large amount of cold energy of the snow hall can be consumed in the snow making process, and the energy consumption is increased.
Disclosure of Invention
The invention provides an indoor snow making system aiming at the problems of high dependence degree and large influence of the existing snow making technology on the environment, and the overall scheme is to combine and install a variable working condition refrigeration host machine 1 and a snow making machine 9 in a snow hall, ensure that the snow making machine 9 completes snow making independent of the environment, and utilize the heating function of the variable working condition refrigeration host machine 1 to defrost the snow making machine 9.
Therefore, the invention provides a snow making system, which comprises a variable working condition refrigeration host machine 1, a snow making machine 9, a compressed air system 15 and an ice storage coil water tank 16, wherein the snow making machine 9 comprises a shell 17, a heat exchanger 27 is arranged in the shell 17, an air circulating fan 20 is arranged on the shell 17, the air circulating fan 20 can suck circulating air 26 into the shell 17, carries out heat exchange through the heat exchanger 27 and discharges the circulating air through a snow making machine nozzle 18, a water pipe of the ice storage coil water tank 16 and an air pipe of the compressed air system 15 respectively extend towards the interior of the snow making machine 9, are connected with a snow nucleus maker 19 and can generate snow nuclei in the snow making machine nozzle 18, heat exchange pipes of the heat exchanger 27 in the snow making machine 9 are respectively connected with working medium pipelines for heat supply and cold supply from the variable working condition refrigeration host machine 1, the variable working condition refrigeration host 1 has heat supply and cold supply functions, and the snow making machine 9 has a first state and a second state:
in the first state, the heat exchanger 27 cools the circulating air by using the cold energy of the variable working condition refrigeration host machine 1, and the circulating air cools the snow core to finish snow making;
in the second state, the heat exchanger 27 uses the heat of the variable-operation refrigeration main unit 1 to perform the defrosting operation.
Preferably, the system also comprises a fresh air system 10, a working medium pipe of the fresh air system 10 is communicated with a working medium pipeline from the variable working condition refrigeration host 1, and energy of the variable working condition refrigeration host 1 is utilized to provide fresh air for the snow field and defrost the snow field.
Preferably, the system further comprises an air cooler 11, a working medium pipe of the air cooler 11 is communicated with a working medium pipeline from the variable working condition refrigeration host 1, and cold air is provided for the snow field and defrosting is performed for the snow field by using the energy of the variable working condition refrigeration host 1.
Preferably, the system further comprises a snow-melting-prevention cold coil 12, wherein the snow-melting-prevention cold coil 12 is communicated with a cold supply pipeline from the variable working condition refrigerating machine main body 1, and the cold energy of the variable working condition refrigerating machine main body 1 is utilized to maintain the low temperature on the ground so as to prevent snow melting.
Preferably, the system further comprises a structural anti-dewing geothermal coil 13, the anti-dewing geothermal coil 13 is communicated with a heat supply pipeline from the variable working condition refrigeration host 1, and the heat of the variable working condition refrigeration host 1 is utilized to prevent the dewing of the related structure.
Preferably, the variable working condition refrigeration host 1 is a fresh air system 10, an air cooler 11, an anti-dewing geothermal coil 13 and a heat exchanger 27, and the heat supply temperature is 30-37 ℃; the cooling temperature for the air cooler 11 and the fresh air system 10 is-15 ℃; the temperature at which the heat exchanger 27 of the snow making machine 9 can be supplied with cold is-27 deg.c.
Preferably, the variable working condition refrigeration main machine 1 is a screw ethylene glycol unit.
Preferably, the snow making machine 9 is fixedly mounted at the bottom.
The snow making system can be installed in various snow halls, can ensure that the snow making machine 9 can make snow continuously at the temperature of minus 1 ℃ below the ambient temperature without depending on the environment, and the snow is fluffy, dry and easy to store, and the snow quality can be adjusted.
The prior scheme integrates equipment such as the variable working condition refrigeration host machine 1, the snow maker 9, the cold air system 11, the fresh air unit 10, the snow melting prevention cold coil pipe 12, the exposure prevention geothermal coil pipe system 13 and the like into a complete snow making system and an environment temperature adjusting system, fully utilizes the refrigeration and heating functions of the variable working condition refrigeration host machine 1 under double working conditions, and provides a proper environment for a snow hall.
Drawings
FIG. 1 is a schematic layout of a snow making system;
fig. 2 is a schematic structural view of the snow maker 9;
fig. 3 is a schematic view of the installation of the snow making machine 9.
Description of reference numerals:
1-a variable working condition refrigeration host machine, 2-a cooling tower, a 3-15 ℃ cold source water pump, a 4-27 ℃ cold source water pump, 5-a heat source water pump, 6-a water collecting and distributing device, 7-a snowmaker water tank, 8-a frost collecting and distributing device, 9-a snowmaker, 10-a fresh air system, 11-an air cooler, 12-a snow-melting-preventing cold coil, 13-an anti-dew-preventing geothermal coil, 14-a snow melting pool, 15-a compressed air system, 16-an ice storage coil water tank, 17-a shell, 18-a snowmaker nozzle, 19-a snow making nucleon, 20-an air circulating fan, 21-a frost melting port, 22-a compressed air inlet, 23-a snow making water inlet, 24-a hot water pipe, 25-a cold water pipe, 26-circulating air and 27-a heat exchanger.
Detailed Description
In the present invention, the use of the terms of orientation such as "upper, lower, left, right, horizontal, vertical" generally refers to the orientation of upper, lower, left, right, horizontal, vertical, etc. as shown with reference to FIG. 2, without a contrary indication.
It will be understood that, although the present invention has been described herein with these directional terms for the sake of clarity, the relative orientation of the directional terms as they are used may be different from the actual orientation of the system configuration when it is placed or installed in a different orientation than that shown.
The present invention will be described with reference to fig. 1 and 2.
The snow making system comprises a variable working condition refrigeration host 1, a snow making machine 9, a compressed air system 15, an ice storage coil water tank 16 and other equipment.
The variable working condition refrigeration host 1 can respectively produce three working media of-15 ℃, minus 27 ℃ and 30-37 ℃, wherein the working medium of-15 ℃ flows to the water collecting and distributing device 6 through the cold source water pump 3 of-15 ℃ and is conveyed to each unit; working medium at the temperature of-27 ℃ flows to the water tank 7 of the snowmaker through the cold source water pump 4 at the temperature of-27 ℃ and is conveyed to the heat exchanger 27 of the snowmaker 9, and working medium at the temperature of 30-37 ℃ flows to the defrosting water collecting and distributing device 8 through the heat source water pump 5 and is conveyed to each unit.
The variable working condition refrigeration main machine 1 and the cooling tower 2 exchange heat. Preferably, the variable working condition refrigeration main machine 1 is a screw ethylene glycol unit.
The snow maker 9 includes a casing 17, a heat exchanger 27 is provided in the casing 17, an air circulation fan 20 is attached to the casing 17, and the air circulation fan 20 sucks circulation air 26 into the snow maker casing 17, exchanges heat with the circulation air via the heat exchanger 27, and discharges the circulation air through a snow maker nozzle 18.
A2 ℃ water system for making snow is provided by an ice storage coil water tank 16, and a cold source for cooling the ice storage coil water tank comes from a water collecting and distributing device 6.
The water pipe of the ice storage coil water tank 16 and the air pipe of the compressed air system 15 respectively extend towards the interior of the snow making machine 9 through a compressed air inlet 22 and a snow making water inlet 23 of the snow making machine 9 and are connected with a snow making nucleon 19 in a nozzle 18 of the snow making machine 9, the snow making nucleon 19 can generate snow nucleuses in the snow making machine 9, a hot water interface 24 of a heat exchanger 27 is connected with a hot water pipe from the defrosting water collecting and distributing device 8, and a cold water interface 25 is connected with a cold water pipe at-27 ℃ from the snow making machine water tank 7.
The system is controlled by an automatic control system, necessary valves and necessary equipment for controlling the valves are arranged at corresponding positions of the system, various sensors provide signals for the system, and the program of the system is as follows:
the first stage is a precooling stage, the snow making system enters a cooling process, when the temperature at the snow outlet 18 of the snow making machine 9 is detected to be reduced to minus 20 ℃, the compressed air system 15 starts to supply air, and after 10 seconds of no fault, the snow making water starts to be supplied.
In the second stage, the circulating air 26 enters the heat exchanger 27 through the air circulating fan 20 and is sprayed out through the nozzle 18, the heat exchanger cools the air by using the cold energy passing through the water tank 7 of the snow making machine, preferably, the temperature of the low-temperature cold air is-22 ℃, the snow making nucleon 19 can generate snow nucleuses in the nozzle 18 of the snow making machine, and the cold air is distributed around the snow nucleuses to realize snow making. After the snow maker 9 works for 4 hours, snow making water and compressed air are produced, and the cold water 25 pipeline is closed.
And in the third defrosting stage, the hot water pipeline 24 is opened, the defrosting port 21 is opened, and the next circulation mode is started after the temperature of the snow outlet 18 is raised to 20 ℃ for 10 minutes.
In order to further optimize the system, the system also comprises a fresh air unit 10 and an air cooler 11, and cold and hot water pipelines of heat exchangers of the fresh air unit 10 and the air cooler 11 are respectively connected with working medium pipelines of the water collecting and distributing device 6 and the defrosting water collecting and distributing device 8.
The air cooler 11 provides cold air for the snow field, and ensures the environment temperature of-2 ℃ required by snow making and running of the indoor snow field; the fresh air unit 10 provides fresh air required by the environment for a snow field, the fresh air system provides cooling air to prevent indoor temperature fluctuation, and the melting and water distributing device 8 provides a defrosting hot working medium for defrosting of two devices.
As an optimization scheme, the system also includesComprisesThe snow melting prevention cold coil 12 is connected with the working medium pipeline from the water collecting and distributing device 6, and the proper temperature of the snow field is maintained by using cold energy to prevent snow melting.
The ground cooling system where the snow melting prevention cooling coil 12 is located is used for storing snow, a dewing prevention geothermal coil 13 is arranged on the lowest snow channel structural surface below the cooling coil, the dewing prevention geothermal coil 13 is connected with a working medium pipeline of the melting and water distributing device 8, and the heat of the variable working condition refrigeration host 1 is used for preventing dewing or freezing loss of related structures.
As a preferred scheme, the system has the heat supply temperature of the equipment including the fresh air system 10, the air cooler 11, the anti-condensation geothermal coil 13 and the heat exchanger 27 being 30-37 ℃, and the cooling temperature of the air cooler 11 and the fresh air system 10 being-15 ℃; the temperature at which the heat exchanger 27 of the snow making machine 9 can be supplied with cold is-27 deg.c.
The snow making system can be installed in various snow halls, can ensure that the snow making machine 9 can make snow continuously at the ambient temperature of-1 ℃ without depending on the environment, and has fluffy, dry and easy storage, and adjustable snow quality.
The variable working condition refrigeration host 1, the snow making machine 9, the cold air system 11, the fresh air unit 10, the snow melting prevention cooling coil pipe 12, the anti-exposure geothermal coil pipe system 13 and the like are integrated into a complete snow making and environment temperature adjusting system, and under the control of an automatic control system, the system can provide cold air, fresh air, snow melting prevention, dewing prevention and the like for snow halls.
When the snow melting system is used in a snow hall, with the increase of the number of skiers, snow on the surface layer becomes more dirty, so that the snow quality is reduced, new snow needs to be replaced, the replaced snow needs to be purified in the snow melting pool 14 for secondary utilization every day, and the heat can be supplied to the snow melting pool 14 through the frost melting water collecting and distributing device, so that the snow melting is realized.
Because the indoor ski field is a crowded place and has high fire-fighting level, the existing fireproof insulating material of the shell 17 of the snow making machine 9 is only a rock wool sandwich plate, but the rock wool plate is afraid of moisture and cold bridges, and in order to reduce the cold bridges for perforating the heat-insulating layer of the top plate, the snow making machine 9 of the invention adopts a bottom fixing mode, as shown in figure 3, so that the number of top plate perforations can be greatly reduced.
The system is characterized in that:
1. each snow making machine 9 is provided with an independent cooling unit, accurate air volume is used, snow making is not restricted by the temperature and the humidity of a snow hall, the quality of the snow is adjustable, snow making water is converted into the snow by 100 percent, and the snow making machine 9 can make the snow with the installation height of more than 4 meters.
2. The cold air for making snow is directly generated from the inside of the snow making machine 9, and the snow making has no influence on the temperature and humidity of the snow hall.
3. The energy consumption is low, namely, the continuous snow making can be carried out at the ambient temperature of minus 1 ℃, the snow is fluffy, dry and easy to store, the energy consumption for snow making production is low, the temperature of the snow hall is constant between minus 1 ℃ and minus 2 ℃ in the snow making and operation stages, and lower temperature is not needed.
The system can be arranged in indoor ski grounds or indoor ice and snow paradises and snow houses, can ensure that the snow maker completes snow making independent of the environment, and can provide cold air, fresh air, snow melting prevention, dew condensation prevention, snow melting prevention and other functions for snow halls.
The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. The present invention is not limited thereto, and various simple modifications can be made to the technical solution within the technical spirit of the present invention. In order to avoid unnecessary repetition, the invention has not been described in detail with reference to various possible combinations, but these simple modifications and combinations should be construed as being within the scope of the present invention as disclosed in the present application.
Claims (10)
1. The utility model provides an indoor snow making system, contains variable operating mode refrigeration host computer (1), snowmaker (9), compressed air system (15), ice-storage coil pipe water tank (16), snowmaker (9) contain casing (17) be provided with heat exchanger (27) in casing (17), install air circulation fan (20) on casing (17), air circulation fan (20) can inhale the air in casing (17), the warp heat exchanger (27) carry out the heat exchange and discharge through snowmaker nozzle (18), the water pipe of ice-storage coil pipe water tank (16) with the trachea of compressed air system (15) respectively to snowmaker (9) inside extend connect in snowmaker nucleon ware (19) and can produce the snow core in snowmaker nozzle (18), its characterized in that: the heat exchange pipes of the heat exchanger (27) in the snow making machine (9) are respectively connected with working medium pipelines for heat supply and cold supply from the variable working condition refrigeration host (1), the variable working condition refrigeration host (1) has the functions of heat supply and cold supply, and the snow making machine (9) has a first state and a second state:
in the first state, the heat exchanger (27) utilizes the cold energy from the variable working condition refrigeration host machine (1) to cool the circulating air passing through the interior of the shell (17) of the snow making machine (9), and the circulating air cools the snow core to complete snow making;
in the second state, the heat exchanger (27) utilizes the heat from the variable working condition refrigeration main machine (1) to realize defrosting operation.
2. The snow making system of claim 1, wherein: the system further comprises a fresh air system (10), a working medium pipe of the fresh air system (10) is connected with a working medium pipeline from the variable working condition refrigeration host (1), and energy of the variable working condition refrigeration host (1) is utilized to provide fresh air for the snow field and defrost the snow field.
3. The snow making system of claim 1, wherein: the system further comprises an air cooler (11), a working medium pipe of the air cooler (11) is communicated with a working medium pipe derived from the variable working condition refrigeration host (1), and cold air and self-defrosting are provided for the snow field by using the energy of the variable working condition refrigeration host (1).
4. The snow making system of claim 1, wherein: the system further comprises a snow melting prevention cold coil (12), the snow melting prevention cold coil (12) is communicated with a cold supply pipeline from the variable working condition refrigeration machine main body (1), and the cold energy of the variable working condition refrigeration machine main body (1) is utilized to maintain the low temperature of the ground so as to prevent snow melting.
5. The snow making system of claim 1, wherein: this system still contains structure anti-condensation geothermal coil (13), anti-condensation geothermal coil (13) with from the source derive from the heat supply pipeline of variable operating mode refrigerator owner (1) is linked together, utilizes variable operating mode refrigeration host computer (1) heat is in order to prevent the structure dewfall.
6. A snow making system as claimed in claim 3, wherein: the variable working condition refrigeration main machine (1) is characterized in that the heat supply temperature of the fresh air system (10), the air cooler (11) and the heat exchanger (27) is 30-37 ℃, and the cold supply temperature of the fresh air system (10) and the air cooler (11) is-15 ℃.
7. The snow making system of claim 1, wherein: the temperature of the variable working condition refrigeration main machine (1) for supplying cold to the heat exchanger (27) of the snow making machine (9) is-27 ℃.
8. A snow making system as claimed in any one of claims 1 to 7, wherein: the variable working condition refrigeration main machine (1) is a screw ethylene glycol unit.
9. A snow making system as claimed in any one of claims 1 to 7, wherein: the snow making machine (9) is fixedly installed at the bottom.
10. The snow making system of claim 8, wherein: the snow making machine (9) is fixedly installed at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321175.5A CN111829232A (en) | 2019-04-22 | 2019-04-22 | Indoor snow making system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910321175.5A CN111829232A (en) | 2019-04-22 | 2019-04-22 | Indoor snow making system |
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| Publication Number | Publication Date |
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| CN111829232A true CN111829232A (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910321175.5A Pending CN111829232A (en) | 2019-04-22 | 2019-04-22 | Indoor snow making system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264097A (en) * | 2021-12-28 | 2022-04-01 | 西安交通大学 | Rapid snow forming system for realizing condensation heat recovery and operation method |
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| JP2000274762A (en) * | 1999-03-19 | 2000-10-06 | Snova Corp | Air conditioning method and air conditioning system for indoor artificial skiing slope |
| WO2008075689A1 (en) * | 2006-12-20 | 2008-06-26 | Iceman Co., Ltd. | Snowmaking accelerating apparatus and method of snowmaking acceleration |
| CN102853605A (en) * | 2012-10-18 | 2013-01-02 | 牡丹江雪城机械制造有限责任公司 | Snow making machine with adjustable quantity of nozzles of nucleon device |
| CN106679211A (en) * | 2016-12-21 | 2017-05-17 | 深圳市帝力冷冻设备有限公司 | Indoor cooling and snow making integrated system |
| CN207729885U (en) * | 2017-12-20 | 2018-08-14 | 北京大学 | A kind of 0 DEG C of nearly trail or more artificial snow and heat supply integral system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5241830A (en) * | 1991-04-11 | 1993-09-07 | Taikisha Ltd. | Method of forming and maintaining artificial snow layer |
| JP2000274762A (en) * | 1999-03-19 | 2000-10-06 | Snova Corp | Air conditioning method and air conditioning system for indoor artificial skiing slope |
| WO2008075689A1 (en) * | 2006-12-20 | 2008-06-26 | Iceman Co., Ltd. | Snowmaking accelerating apparatus and method of snowmaking acceleration |
| CN102853605A (en) * | 2012-10-18 | 2013-01-02 | 牡丹江雪城机械制造有限责任公司 | Snow making machine with adjustable quantity of nozzles of nucleon device |
| CN106679211A (en) * | 2016-12-21 | 2017-05-17 | 深圳市帝力冷冻设备有限公司 | Indoor cooling and snow making integrated system |
| CN207729885U (en) * | 2017-12-20 | 2018-08-14 | 北京大学 | A kind of 0 DEG C of nearly trail or more artificial snow and heat supply integral system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114264097A (en) * | 2021-12-28 | 2022-04-01 | 西安交通大学 | Rapid snow forming system for realizing condensation heat recovery and operation method |
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