CN115046342A - Ice slurry snow making machine and control method - Google Patents
Ice slurry snow making machine and control method Download PDFInfo
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- CN115046342A CN115046342A CN202210887218.8A CN202210887218A CN115046342A CN 115046342 A CN115046342 A CN 115046342A CN 202210887218 A CN202210887218 A CN 202210887218A CN 115046342 A CN115046342 A CN 115046342A
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- ice slurry
- snow
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- nozzle
- ice
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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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- 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
- F25C2600/00—Control issues
- F25C2600/04—Control means
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- General Engineering & Computer Science (AREA)
Abstract
The invention discloses an ice slurry snow making machine and a control method, wherein ice slurry is adopted to make snow directly, and the snow making machine comprises a nozzle, an air duct, a fan, a vacuum flash chamber, a water pump, a heat exchanger, a water tank, a small water pump, steam adsorption, a vacuum pump and a fan. The ice slurry is a solid-liquid two-phase solution containing suspended ice crystal particles, and the ice crystal particles in the ice slurry are directly used as ice crystal nuclei for catalyzing water drops to freeze, so that the formation steps of the ice crystal nuclei can be reduced, the snow forming difficulty is effectively reduced, and the snow forming effect is improved. Meanwhile, the ice slurry is used as a common phase-change secondary refrigerant, has huge low-temperature sensible heat and phase-change latent heat, can be used for cooling air, provides a low-temperature environment for snow making, and is suitable for the snow making in a high-temperature environment. The snow making machine can also directly supply cold water for preparing ice slurry to the nozzle, prevent the nozzle from being blocked, improve the efficiency of the machine set and prolong the service life. The invention can reduce the difficulty of forming snow, adapt to snow making in different environments, prevent the nozzle from being blocked, and improve the operation efficiency and the service life of the unit.
Description
Technical Field
The invention belongs to the technical field of snow makers, and particularly relates to an ice slurry snow maker and a control method.
Background
The snow maker, as an artificial snow making device for providing stable snow resources, has been one of the indispensable equipments for guaranteeing the operation of the ski field in winter. At present, the most widely used internal mixing type snowmaking machine adopts a nucleon and a swirl nozzle as atomizing components, high-pressure water is sprayed and atomized through the nozzle to form fine water drops, and the high-pressure water and compressed air are atomized into more tiny water drops through the nucleon. The atomized water drops of the nucleon device are smaller in particle size, large in heat exchange specific surface area, faster in heat exchange and less in required cold quantity, so that the atomized water drops can be quickly frozen at an outlet to form ice crystal nuclei. The ice crystal nucleus is one of the necessary conditions for forming snow and can catalyze the freezing of water drops to form snowflakes. The snow making equipment has high requirements on the temperature and the humidity of the environment, can only make snow within the range of the temperature of a wet bulb from minus 14 ℃ to minus 2 ℃, and has great influence on the quality of the snow by the temperature and the humidity of the environment. Therefore, in order to reduce the dependency of snow making on the environment, adapt to the snow making environment at the subzero temperature and further improve the snow making effect of the snow making machine, it is necessary to structurally optimize the snow making machine.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide an ice slurry snow making machine and a control method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ice slurry snow-making machine comprises a nozzle 1, an air duct 2, a fan 3, a vacuum flash chamber 4, a water pump 5, a heat exchanger 6, a water tank 7, a small water pump 8, a steam adsorption 9, a vacuum pump 10 and a fan 11; the nozzles 1 are uniformly distributed on the inner side of the circumference of the outlet of the air duct 2 and are used for spraying ice slurry; the fan 3 is positioned at the tail part of the air duct 2 and is used for blowing the snowflakes into the air; the vacuum flash chamber 4 is used for preparing ice slurry, an outlet of the vacuum flash chamber is connected with a water pump 5, an outlet of the water pump 5 is divided into an L1 branch and an L2 branch, an L1 branch supplies the ice slurry for the nozzle 1, an L2 branch is connected with a hot side of the heat exchanger 6, and the ice slurry is supplied to the heat exchanger 6 for cooling air; the ice slurry in the heat exchanger 6 is changed into water after heat exchange and returns to the water tank 7 through an L3 branch for continuous utilization; an outlet of the water tank 7 is divided into an L4 branch and an L5 branch after passing through a small water pump 8, the L4 branch is connected with a nozzle at the top of the vacuum flash chamber 4 to provide cold water for preparing ice slurry, and the L5 branch is connected with the nozzle 1 to prevent the nozzle 1 from being blocked; the inner wall of the vacuum flash chamber 4 is provided with a steam adsorption 9 for adsorbing evaporated steam to prevent the vacuum degree from being reduced, and the adsorbed steam is condensed into water and returns to the water tank 7 through an L6 branch for continuous utilization; the vacuum pump 10 is used for vacuumizing the vacuum flash chamber 4; the outlet of the fan 11 is connected with the cold side of the heat exchanger 6, and air is cooled by the heat exchanger 6 and then is conveyed to the fan 3, so that a low-temperature environment is provided for snow making.
The ice slurry is a solid-liquid two-phase solution containing suspended ice crystal particles with the average diameter smaller than 1mm, and the ice crystal particles in the suspended ice slurry are directly used as ice crystal nuclei for catalyzing water drops to freeze.
The control method of the ice slurry snow-making machine,
1) snow making mode:
the method comprises the following steps: closing the L5 branch and opening the rest branches;
step two: starting a vacuum pump 10 to vacuumize the vacuum flash chamber 4, and starting a small water pump 8 to provide cold water for the vacuum flash chamber 4;
step three: starting a water pump 5 to provide ice slurry for the nozzle 1 to make snow;
step four: starting the fan 11 and adjusting the air temperature according to the environmental temperature to provide a low-temperature environment for snow making;
2) a blockage removing mode:
the method comprises the following steps: opening the L5 branch and closing the rest branches;
step two: the small water pump 8 is turned on to supply cold water directly to the nozzle 1.
Compared with the prior art, the invention has the following obvious advantages:
1) the invention has proposed a ice slurry snow making machine and control method, this snow making machine adopts the ice slurry to make snow directly, the ice slurry is a solid-liquid two-phase solution containing a large amount of suspended ice crystal particles whose mean diameter is smaller than 1mm, the ice crystal particle in the ice slurry is regarded as the ice crystal nucleus that the catalysis water droplet freezes directly, can reduce the formation step of the ice crystal nucleus, reduce the difficulty of becoming snow effectively, improve the snow effect;
2) the ice slurry snow-making machine provided by the invention takes the ice slurry as the phase-change secondary refrigerant, the ice slurry has huge low-temperature sensible heat and phase-change latent heat, and can be used as refrigerant cooling air to provide a low-temperature environment for making snow so as to adapt to high-temperature environment for making snow;
3) the ice slurry snow-making machine provided by the invention can also directly supply cold water for preparing ice slurry to the nozzle, so that the nozzle is prevented from being blocked, the efficiency of the machine set is improved, and the service life of the machine set is prolonged.
The invention can reduce the difficulty of forming snow, adapt to snow making in different environments, prevent the nozzle from being blocked, and improve the operation efficiency and the service life of the unit.
Drawings
Fig. 1 is a schematic structural view of the ice slurry snow making machine of the present invention.
Fig. 2 is a schematic view of the nozzle arrangement of the ice slurry snow making machine of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear and concise, the present invention will be described in further detail with reference to the accompanying drawings and an embodiment. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
As shown in fig. 1 and 2, the ice slurry snow making machine of the present invention comprises a nozzle 1, an air duct 2, a fan 3, a vacuum flash chamber 4, a water pump 5, a heat exchanger 6, a water tank 7, a small water pump 8, a steam adsorption 9, a vacuum pump 10 and a fan 11.
The nozzles 1 are uniformly distributed on the inner side of the circumference of the outlet of the air duct 2 and are used for spraying ice slurry. The fan 3 is positioned at the tail part of the air duct 2 and is used for blowing the snowflakes into the air. The vacuum flash chamber 4 is used for preparing ice slurry, and the outlet of the vacuum flash chamber is connected with a water pump 5. The outlet of the water pump 5 is divided into an L1 branch and an L2 branch, the L1 branch supplies ice slurry for the nozzle 1, and the L2 branch is connected with the hot side of the heat exchanger 6 and supplies ice slurry for the heat exchanger 6 for cooling air. The ice slurry in the heat exchanger 6 is changed into water after heat exchange, and the water returns to the water tank 7 through a branch L3 for continuous use. An outlet of the water tank 7 is divided into an L4 branch and an L5 branch after passing through a small water pump 8, the L4 branch is connected with a nozzle at the top of the vacuum flash chamber 4 to provide cold water for preparing ice slurry, and the L5 branch is connected with the nozzle to prevent the nozzle 1 from being blocked. The inner wall of the vacuum flash chamber 4 is provided with a steam adsorption 9 for adsorbing evaporated steam to prevent the vacuum degree from reducing, and the adsorbed steam is condensed into water and returns to the water tank 7 through an L6 branch for continuous utilization. A vacuum pump 10 is used to evacuate the vacuum flash chamber 4. The outlet of the fan 11 is connected with the cold side of the heat exchanger 6, and air is cooled by the heat exchanger 6 and then is conveyed to the fan 3, so that a low-temperature environment is provided for snow making.
The control method of the ice slurry snow-making machine comprises the following steps:
1) snow making mode:
the method comprises the following steps: the L5 branch is closed and the remaining branches are opened.
Step two: and starting a vacuum pump 10 to vacuumize the vacuum flash chamber 4, and starting a small water pump 8 to provide cold water for the vacuum flash chamber 4.
Step three: and starting the water pump 5 to provide ice slurry for the nozzle 1 to make snow.
Step four: the fan 11 is turned on and the air temperature is adjusted according to the ambient temperature, providing a low temperature environment for snow making.
2) A blockage removing mode:
the method comprises the following steps: the L5 branch is opened and the remaining branches are closed.
Step two: the small water pump 8 is turned on to supply cold water directly to the nozzle 1.
Claims (3)
1. An ice slurry snow-making machine is characterized in that: comprises a nozzle (1), an air duct (2), a fan (3), a vacuum flash chamber (4), a water pump (5), a heat exchanger (6), a water tank (7), a small water pump (8), a steam adsorption (9), a vacuum pump (10) and a fan (11); the nozzles (1) are uniformly distributed on the inner side of the circumference of the outlet of the air duct (2) and are used for spraying ice slurry; the fan (3) is positioned at the tail part of the air duct (2) and is used for blowing the snowflakes into the air; the vacuum flash chamber (4) is used for preparing ice slurry, an outlet of the vacuum flash chamber is connected with a water pump (5), an outlet of the water pump (5) is divided into an L1 branch and an L2 branch, an L1 branch supplies the ice slurry for the nozzle (1), an L2 branch is connected with the hot side of the heat exchanger (6), and the ice slurry is supplied for the heat exchanger (6) and is used for cooling air; the ice slurry in the heat exchanger (6) is changed into water after heat exchange and returns to the water tank (7) through an L3 branch for continuous utilization; an outlet of the water tank (7) is divided into an L4 branch and an L5 branch after passing through a small water pump (8), the L4 branch is connected with a nozzle at the top of the vacuum flash chamber (4) to provide cold water for preparing ice slurry, and the L5 branch is connected with the nozzle (1) to prevent the nozzle (1) from being blocked; the inner wall of the vacuum flash chamber (4) is provided with a steam adsorption device (9) for adsorbing evaporated steam to prevent the vacuum degree from being reduced, and the adsorbed steam is condensed into water and returns to the water tank (7) through an L6 branch for continuous utilization; the vacuum pump (10) is used for vacuumizing the vacuum flash evaporation chamber (4); the outlet of the fan (11) is connected with the cold side of the heat exchanger (6), and air is cooled by the heat exchanger (6) and then is conveyed to the fan (3) to provide a low-temperature environment for snow making.
2. An ice slurry snow making machine as claimed in claim 1, wherein: the ice slurry is a solid-liquid two-phase solution containing suspended ice crystal particles with the average diameter smaller than 1mm, and the ice crystal particles in the suspended ice slurry are directly used as ice crystal nuclei for catalyzing water drops to freeze.
3. A method of controlling an ice slurry snow making machine as claimed in claim 1 or 2, wherein: 1) snow making mode:
the method comprises the following steps: closing the L5 branch and opening the rest branches;
step two: starting a vacuum pump (10) to vacuumize the vacuum flash chamber (4), and starting a small water pump (8) to provide cold water for the vacuum flash chamber (4);
step three: starting a water pump (5) to provide ice slurry for the nozzle (1) to make snow;
step four: starting a fan (11) and adjusting the air temperature according to the environmental temperature to provide a low-temperature environment for snow making;
2) a blockage removing mode:
the method comprises the following steps: opening the L5 branch and closing the rest branches;
step two: and a small water pump (8) is started to directly provide cold water for the nozzle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210887218.8A CN115046342B (en) | 2022-07-26 | 2022-07-26 | Ice slurry snow making machine and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210887218.8A CN115046342B (en) | 2022-07-26 | 2022-07-26 | Ice slurry snow making machine and control method |
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| CN115046342A true CN115046342A (en) | 2022-09-13 |
| CN115046342B CN115046342B (en) | 2023-03-28 |
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| CN202210887218.8A Active CN115046342B (en) | 2022-07-26 | 2022-07-26 | Ice slurry snow making machine and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116928920A (en) * | 2023-08-24 | 2023-10-24 | 中山市三震制冷科技有限公司 | Snow maker and control method |
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|---|---|---|---|---|
| JP2002257385A (en) * | 2001-02-28 | 2002-09-11 | Sanken Setsubi Kogyo Co Ltd | Ice slurry and low temperature ice and artificial snow taking out system of steam compression freezer utilizing sodium chloride |
| CN200986354Y (en) * | 2006-12-26 | 2007-12-05 | 上海海事大学 | Vacuum freezing steam absorbing type binary ice preparing device |
| JP2019086162A (en) * | 2017-11-01 | 2019-06-06 | エスペック株式会社 | Snowfall device |
| CN213421542U (en) * | 2020-09-10 | 2021-06-11 | 哈尔滨冰泽制冷设备有限公司 | Real snow making equipment for ski field |
| CN113883769A (en) * | 2021-09-18 | 2022-01-04 | 西安交通大学 | Snow making system applying ultrasonic coagulation tank and control method |
| 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 |
-
2022
- 2022-07-26 CN CN202210887218.8A patent/CN115046342B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002257385A (en) * | 2001-02-28 | 2002-09-11 | Sanken Setsubi Kogyo Co Ltd | Ice slurry and low temperature ice and artificial snow taking out system of steam compression freezer utilizing sodium chloride |
| CN200986354Y (en) * | 2006-12-26 | 2007-12-05 | 上海海事大学 | Vacuum freezing steam absorbing type binary ice preparing device |
| JP2019086162A (en) * | 2017-11-01 | 2019-06-06 | エスペック株式会社 | Snowfall device |
| CN213421542U (en) * | 2020-09-10 | 2021-06-11 | 哈尔滨冰泽制冷设备有限公司 | Real snow making equipment for ski field |
| CN113883769A (en) * | 2021-09-18 | 2022-01-04 | 西安交通大学 | Snow making system applying ultrasonic coagulation tank and control method |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116928920A (en) * | 2023-08-24 | 2023-10-24 | 中山市三震制冷科技有限公司 | Snow maker and control method |
| CN116928920B (en) * | 2023-08-24 | 2024-06-04 | 中山市三震制冷科技有限公司 | Snow maker and control method |
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| CN115046342B (en) | 2023-03-28 |
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