CN112923623A - Snow making machine with high snow making rate and control method and working method thereof - Google Patents
Snow making machine with high snow making rate and control method and working method thereof Download PDFInfo
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- CN112923623A CN112923623A CN202110138701.1A CN202110138701A CN112923623A CN 112923623 A CN112923623 A CN 112923623A CN 202110138701 A CN202110138701 A CN 202110138701A CN 112923623 A CN112923623 A CN 112923623A
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- snow making
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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
- F25C2303/00—Special arrangements or features for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Special arrangements or features for producing artificial snow
- F25C2303/044—Snow making using additional features, e.g. additives, liquid gas
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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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Abstract
A snow making machine with high snow making rate and a control method and a working method thereof are disclosed, wherein the snow making machine comprises a machine barrel, a fan, a nozzle, a gas-liquid nucleon device, an air compressor, a temperature and humidity sensor, a flow regulating valve and a control module; the control module receives signals of the temperature and humidity sensor and controls the opening degree of the flow regulating valve by combining the temperature of the environment wet bulb. The air nucleus device is arranged at the rear end of the nozzle and the gas-liquid nucleus device, and can throttle and expand compressed air to a lower temperature, promote nucleation of atomized water drops without nucleation, and promote rapid growth of nucleated ice particles into snowflakes. Compared with the prior art, the snow making machine can effectively improve the snow making efficiency and quality of the snow making machine.
Description
Technical Field
The invention relates to the technical field of snow makers, in particular to a snow maker with a high snow making rate and a control method and a working method thereof.
Background
The artificial snow making equipment is mainly a snow making machine, the number of the existing snow making machines in China is about 4000, 3500 snow making machines are imported, and only 500 snow making machines are made in China. Meteorological data indicate that, on average, the global climate is warming. The winter is shorter and shorter, and the natural snowfall quantity is also reduced. It is estimated that the average air temperature rises by 1 ℃ and the skiing season is shortened by about 25%. This means that the snowmaking cycle is longer and the snowmaking natural conditions are more severe. At present, the global ice and snow industry is in a key stage of upgrading and developing, particularly, the goal of Beijing winter Olympic meeting and ice and snow reaching of 3 hundred million people is realized in 2022, and the urgent need of the industry is to develop outdoor snow making equipment which is more efficient, energy-saving, intelligent, accurate, high-quality and environment-friendly. Compared with European and American countries, the ice and snow industry in China starts late, and although great progress is made in recent years, the problems of unclear understanding of snow making mechanism, backward technical equipment, poor autonomous brand competition, low industrial popularization rate and the like still exist.
The snow making efficiency and the snow making quality of the snow making machine are mainly influenced by environmental parameters and the atomization efficiency of the nozzle and the nucleon device, and one problem faced by the current snow making machine is that water drops sprayed by the nozzle cannot be in sufficient contact with ice nucleuses sprayed by the nucleon device, so that a part of water drops sprayed by the nozzle cannot grow into snowflakes, and the snow making efficiency of the snow making machine is reduced. The invention provides a snow making machine with high snow making rate, which can realize stable and efficient snow making of the snow making machine under various working conditions.
Disclosure of Invention
In view of the above-mentioned problems of the snow making machine, it is an object of the present invention to provide a snow making machine with a high snow making rate, a control method thereof, and a working method thereof, in which an air nucleon device is added at the rear end of a nozzle and a gas-liquid nucleon device, and the air nucleon device expands air to a lower temperature and mixes with fog drops and ice nuclei ejected from the nozzle and the gas-liquid nucleon device, thereby promoting the fog drops to grow into ice nuclei and promoting the ice nuclei to grow, and improving the snow making efficiency of the snow making machine.
In order to achieve the technical purpose, the invention adopts the following technical scheme: a snow making machine with high snow making rate comprises a machine barrel 12, a plurality of nozzles, a plurality of gas-liquid nucleotiders and a plurality of air nucleotiders, wherein the nozzles, the gas-liquid nucleotiders and the air nucleotiders are arranged on the inner surface of the machine barrel 12; the water inlet pipe 13 is respectively connected with each nozzle and each gas-liquid nucleon device, the outlet of the air compressor 11 is divided into two paths, one path is connected with each gas-liquid nucleon device, and the other path is connected with each air nucleon device through the flow regulating valve 10; the fan 14 is arranged in the middle of the inlet of the machine barrel 12, and the temperature and humidity sensor TH is arranged on the outer wall surface of the machine barrel 12; the control module C1 is connected to the flow regulating valve 10 and the temperature and humidity sensor TH, respectively.
The nozzles and the gas-liquid nucleonic devices are arranged on the inner surface of the machine barrel 12 in a number of 2: 1-5: 1, namely, one gas-liquid nucleonic device is arranged for every two, three, four or five nozzles; the gas-liquid nucleon devices and the air nucleon devices are arranged on the inner surface of the machine barrel 12 in the number of 2: 1-3: 1, namely two or three gas-liquid nucleon devices are arranged and one air nucleon device is arranged.
The nozzle and the gas-liquid nucleon device are arranged on a circular ring, and the air nucleon device is arranged on the circular ring at the rear end of the nozzle and the gas-liquid nucleon device.
The air nucleus device reduces the temperature of the compressed air through throttling expansion, and the compressed air is mixed with fog drops and ice nuclei sprayed by the nozzle and the gas-liquid nucleus device to provide a secondary supercooling area, so that the nucleation of atomized water drops without nucleation is promoted, the nucleated ice particles can be promoted to grow into snowflakes quickly, and the snow making efficiency of the snow making machine is improved.
A control method of a snow making machine with high snow making rate comprises the following steps: the temperature and humidity sensor TH outputs signals to the control module C1, the control module C1 adjusts the flow regulating valve 10 according to control logic written in advance, the temperature and humidity sensor TH detects ambient temperature and relative humidity and transmits the ambient temperature and the relative humidity to the control module C1, and the control module C1 calculates wet bulb temperature TwWet bulb temperature T according to the environmentwThe control method is characterized in that the control and regulation are carried out to meet the snow making requirements under different climatic conditions, and the specific control method comprises the following steps:
when T isw＜t0The flow regulating valve 10 is closed; when t is0＜Tw＜t1The opening degree of the flow control valve 12 is n1When t is1＜TwThe opening degree of the flow regulating valve 10 is n2，t0The value range of (A) is-16 to-14 ℃, t1The value range of (A) is-8 to-6 ℃, and n is1The value range of (1) is 50-60% of full aperture, n2Is taken to be 100% of full-open.
The working method of the snow making machine with high snow making rate comprises the following steps: high-pressure cold water enters each nozzle and each gas-liquid nucleon through a water inlet pipe 13 respectively, air is sent into each gas-liquid nucleon by an air compressor 11 to be mixed with the cold water, the nozzles spray fog drops to form water fog, the gas-liquid nucleon atomizes a water vapor mixture to spray out and form ice particles, the fog drops and the ice particles are partially mixed under the action of wind blown by a fan 14, the ice particles adsorb the fog drops to grow into snow flakes, but part of the water fog drops are not mixed with the ice particles, meanwhile, the air compressor 11 sends the air into each air nucleon, and the air nucleon expands compressed air to spray lower-temperature air, so that the fog drops which do not form ice nuclei are promoted to form ice nuclei, and meanwhile, the existing ice nuclei are promoted to grow rapidly; the temperature and humidity sensor TH detects the temperature and humidity of air and transmits signals to the control module C1, and the control module C1 controls the opening of the flow regulating valve 10 according to the control logic written in advance.
Compared with the prior art, the invention has the following advantages:
1. the invention provides a snow making machine with high snow making rate, wherein an air nucleon device is added at the rear ends of a nozzle and a gas-liquid nucleon device, and the air nucleon device can throttle expansion air to enable the expansion air to reach lower temperature, so that fog drops are promoted to grow into ice nucleuses, the growth of the ice nucleuses is promoted, and the snow making efficiency of the snow making machine is improved.
2. The invention provides a feasible and effective control method, wherein a control module C1 receives signals of a temperature and humidity sensor TH, and accurately controls a flow regulating valve 12 through a pre-selected set control logic, so that the snow making machine can make snow efficiently under multiple working conditions.
Drawings
Fig. 1 is a schematic view of a snow making machine with high snow making rate according to the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1, the snow making machine with high snow making rate according to the present invention comprises a cylinder 12, and a first nozzle 01, a second nozzle 02, a third nozzle 03, a first gas-liquid nucleon 04, a fourth nozzle 05, a fifth nozzle 06, a sixth nozzle 07, a second gas-liquid nucleon 08 and an air nucleon 09 which are sequentially installed on the inner surface of the cylinder 12; the water inlet pipe 13 is respectively connected with a first nozzle 01, a second nozzle 02, a third nozzle 03, a first gas-liquid nucleon device 04, a fourth nozzle 05, a fifth nozzle 06, a sixth nozzle 07 and a second gas-liquid nucleon device 08, the outlet of the air compressor 11 is divided into two paths, one path is connected with the first gas-liquid nucleon device 04 and the second gas-liquid nucleon device 08, the other path is connected with the flow regulating valve 10, and the outlet of the flow regulating valve 10 is connected with the air nucleon device 09; the fan 14 is arranged in the middle of the inlet of the machine barrel 12, and the temperature and humidity sensor TH is arranged on the outer wall surface of the machine barrel 12; the control module C1 is connected to the flow regulating valve 10 and the temperature and humidity sensor TH, respectively.
The nozzles and the gas-liquid nucleonic devices are arranged on the inner surface of the machine barrel 12 in a number of 2: 1-5: 1, namely, one gas-liquid nucleonic device is arranged for every two, three, four or five nozzles; the gas-liquid nucleon devices and the air nucleon devices are arranged on the inner surface of the machine barrel 12 in the number of 2: 1-3: 1, namely two or three gas-liquid nucleon devices are arranged and one air nucleon device is arranged.
The nozzle and the gas-liquid nucleon device are arranged on a circular ring, and the air nucleon device is arranged on the circular ring at the rear end of the nozzle and the gas-liquid nucleon device.
The air nucleus device throttles and expands the compressed air to a lower temperature, and the compressed air is mixed with the fog drops and ice nuclei sprayed by the nozzle and the gas-liquid nucleus device to provide a secondary supercooling area, so that the nucleation of atomized water drops without nucleation is promoted, the nucleated ice particles can be promoted to grow into snowflakes quickly, and the snow making efficiency of the snow making machine is improved.
A control method of a snow making machine with high snow making rate comprises the following steps: the temperature and humidity sensor TH outputs signals to the control module C1, the control module C1 adjusts the flow regulating valve 10 according to control logic written in advance, the temperature and humidity sensor TH detects ambient temperature and relative humidity and transmits the ambient temperature and the relative humidity to the control module C1, and the control module C1 calculates wet bulb temperature TwWet bulb temperature T according to the environmentwThe control method is characterized in that the control and regulation are carried out to meet the snow making requirements under different climatic conditions, and the specific control method comprises the following steps:
when T isw＜t0The flow regulating valve 10 is closed; when t is0＜Tw＜t1The opening degree of the flow control valve 12 is n1When t is1＜TwThe opening degree of the flow regulating valve 10 is n2，t0The value range of (A) is-16 to-14 ℃, t1The value range of (A) is-8 to-6 ℃, and n is1The value range of (1) is 50-60% of full aperture, n2Is taken to be 100% of full-open.
The working method of the snow making machine with high snow making rate comprises the following steps: high-pressure cold water enters each nozzle and each gas-liquid nucleon through a water inlet pipe 13 respectively, air is sent into each gas-liquid nucleon by an air compressor 11 to be mixed with the cold water, the nozzles spray fog drops to form water fog, the gas-liquid nucleon atomizes a water vapor mixture to spray out and form ice particles, the fog drops and the ice particles are partially mixed under the action of wind blown by a fan 14, the ice particles adsorb the fog drops to grow into snowflakes, but part of the water fog drops are not mixed with the ice particles, meanwhile, the air compressor 11 sends the air into each air nucleon, and the air nucleon expands compressed air to spray lower-temperature air, so that the fog drops which do not form ice nuclei are promoted to form ice nuclei, and meanwhile, the existing ice nuclei are promoted to grow rapidly; the temperature and humidity sensor TH detects the temperature and humidity of air and transmits signals to the control module C1, and the control module C1 controls the opening of the flow regulating valve 10 according to the control logic written in advance.
Claims (6)
1. A snow maker with high snow making rate is characterized in that: comprises a cylinder (12) and a plurality of nozzles, a plurality of gas-liquid nuclei and a plurality of air nuclei which are arranged on the inner surface of the cylinder (12); the water inlet pipe (13) is respectively connected with each nozzle and each gas-liquid nucleon device, the outlet of the air compressor (11) is divided into two paths, one path is connected with each gas-liquid nucleon device, and the other path is connected with each air nucleon device through the flow regulating valve (10); the fan (14) is arranged in the middle of the inlet of the machine barrel (12), and the temperature and humidity sensor (TH) is arranged on the outer wall surface of the machine barrel (12); the control module (C1) is respectively connected with the flow regulating valve (10) and the temperature and humidity sensor (TH).
2. A snow making machine with high snow making rate according to claim 1, characterized in that: the nozzles and the gas-liquid nucleon devices are arranged on the inner surface of the machine barrel (12) in the number of 2: 1-5: 1, namely, one gas-liquid nucleon device is arranged for every two, three, four or five nozzles; the gas-liquid nucleon devices and the air nucleon devices are arranged on the inner surface of the machine barrel (12) in the number of 2: 1-3: 1, namely two or three gas-liquid nucleon devices are arranged and one air nucleon device is arranged.
3. A snow making machine with high snow making rate according to claim 1, characterized in that: the nozzle and the gas-liquid nucleon device are arranged on a circular ring, and the air nucleon device is arranged on the circular ring at the rear end of the nozzle and the gas-liquid nucleon device.
4. A snow making machine with high snow making rate according to claim 1, characterized in that: the air nucleus device throttles and expands compressed air to reduce the temperature, and the compressed air is mixed with fog drops and ice nuclei sprayed by the nozzle and the gas-liquid nucleus device to provide a secondary supercooling area, so that the nucleation of atomized water drops without nucleation is promoted, the nucleated ice particles are promoted to grow into snowflakes quickly, and the snow making efficiency of the snow making machine is improved.
5. The control method of a high snow-making rate snow making machine as claimed in any one of claims 1 to 4, wherein: the temperature and humidity sensor (TH) outputs signals to the control module (C1), the control module (C1) adjusts the flow regulating valve (12) according to control logic written in advance, the temperature and humidity sensor (TH) detects ambient temperature and relative humidity and transmits the ambient temperature and the relative humidity to the control module (C1), and the control module (C1) calculates wet bulb temperature TwWet bulb temperature T according to the environmentwThe control method is characterized in that the control and regulation are carried out to meet the snow making requirements under different climatic conditions, and the specific control method comprises the following steps:
when T isw＜t0The flow regulating valve (10) is closed; when t is0＜Tw＜t1The opening degree of the flow regulating valve (12) is n1When t is1＜TwThe opening degree of the flow regulating valve (12) is n2，t0The value range of (A) is-16 to-12 ℃, t1The value range of (A) is-8 to-6 ℃, and n is1The value range of (1) is 50-60% of full aperture, n2Is taken to be 100% of full-open.
6. The operating method of a high snow-making rate snow making machine as claimed in any one of claims 1 to 4, wherein: high-pressure cold water enters each nozzle and each gas-liquid nucleus device through a water inlet pipe (13) respectively, air is sent into each gas-liquid nucleus device by an air compressor (11) to be mixed with the cold water, the nozzles atomize and spray fog to form water fog, the gas-liquid nucleus devices atomize and spray a water-vapor mixture to form ice particles, the fog drops and the ice particles are partially mixed under the action of wind blown by a fan (14), the ice particles adsorb the fog drops and grow into snow flakes, but part of the water fog is not mixed with the ice particles, meanwhile, the air compressor (11) sends air into each air nucleus device, and the air nucleus devices expand compressed air to spray lower-temperature air, so that the fog drops which do not form ice nuclei are promoted to form ice nuclei, and the existing ice nuclei are promoted to grow rapidly; the temperature and humidity sensor (TH) detects the temperature and humidity of air and transmits signals to the control module (C1), the control module (C1) controls the opening of the flow regulating valve (10) according to the control logic written in advance, and the snow making efficiency and quality can be effectively improved through the regulating and controlling method.
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Cited By (2)
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| CN113405977A (en) * | 2021-06-16 | 2021-09-17 | 哈尔滨工业大学 | A test device for sleet load coupling simulation |
| CN114111144A (en) * | 2021-10-26 | 2022-03-01 | 北京建筑大学 | Large-snow-volume snow making machine adaptive to climatic conditions and nozzle control method thereof |
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| CN113405977A (en) * | 2021-06-16 | 2021-09-17 | 哈尔滨工业大学 | A test device for sleet load coupling simulation |
| CN114111144A (en) * | 2021-10-26 | 2022-03-01 | 北京建筑大学 | Large-snow-volume snow making machine adaptive to climatic conditions and nozzle control method thereof |
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| CN112923623B (en) | 2022-06-07 |
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