CN112902520A - Snow making machine suitable for multi-region climatic conditions, control method and working method - Google Patents

Snow making machine suitable for multi-region climatic conditions, control method and working method Download PDF

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Publication number
CN112902520A
CN112902520A CN202110138707.9A CN202110138707A CN112902520A CN 112902520 A CN112902520 A CN 112902520A CN 202110138707 A CN202110138707 A CN 202110138707A CN 112902520 A CN112902520 A CN 112902520A
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temperature
flow regulating
regulating valve
snow
valve
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CN112902520B (en
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熊通
刘国强
晏刚
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Xian Jiaotong University
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Xian Jiaotong University
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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
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves
    • 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

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  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

A snow maker suitable for multi-region climatic conditions, a control method and a working method are provided, wherein the snow maker comprises a machine barrel, a fan, a nozzle, a nucleon, an air compressor, a temperature and humidity sensor, a temperature sensor, a compressor, a condenser, an electronic expansion valve, two flow regulating valves, an evaporator, an evaporative condenser and a control module; the control module receives signals of the temperature and humidity sensor and the temperature sensor and controls the frequency of the compressor and the opening degree of the electronic expansion valve and the flow regulating valve by combining the temperature of the environment wet bulb and the temperature of inlet water. The snow maker provided by the invention can adapt to the working environment of multi-region climatic conditions, can stably make snow under various working conditions, and the control method can also implement accurate and intelligent control on the snow maker. Compared with the prior art, the control method of the snow maker can realize the efficient operation of the snow maker under the environmental working condition and improve the snow making quality.

Description

Snow making machine suitable for multi-region climatic conditions, control method and working method
Technical Field
The invention relates to the technical field of snow makers, in particular to a snow maker suitable for multi-region climatic conditions, a control method and a working method.
Background
At present, the autonomous snow making machine in China has the problems of poor environmental adaptation, difficult quality control, high operation energy consumption, low intelligent degree and the like, and the performance of the snow making machine can be effectively improved by accurately and intelligently controlling the snow making machine.
The invention provides a snow making machine suitable for multi-region climatic conditions, which can realize stable snow making of the snow making machine under various working conditions and can accurately control the snow making machine.
Disclosure of Invention
In view of the above-mentioned problems of the snow making machine, the present invention aims to provide a snow making machine, a control method and a working method suitable for multi-region climatic conditions, wherein a refrigeration system is added to the original snow making machine, when the air temperature, humidity and water inlet temperature affect the snow making quality and efficiency, the refrigeration system is turned on, and the air temperature, humidity and water inlet temperature entering the snow making machine are adjusted, so that the snow making machine can make snow efficiently and stably under the multi-region climatic conditions, and meanwhile, the control scheme can also accurately control the snow making machine.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a snow-making machine suitable for multi-regional climate conditions comprises a machine barrel 10, a plurality of nozzles and a plurality of nucleon machines which are arranged on the inner surface of the machine barrel 10; the water inlet pipe 19 is respectively connected with each nozzle and each nuclear device, and the air compressor 09 is connected with each nuclear device; an exhaust port of a compressor 18 is connected with an inlet of a condenser 17, an outlet of the condenser 17 is connected with an inlet of an electronic expansion valve 16, an outlet of the electronic expansion valve 16 is respectively connected with inlets of a first flow regulating valve 15 and a second flow regulating valve 14, an outlet of the second flow regulating valve 14 is connected with an inlet of an evaporator 12, a first port 31 of an evaporative condenser is communicated with a third port 33 of the evaporative condenser, a second port 32 of the evaporative condenser is communicated with a fourth port 34 of the evaporative condenser, the first port 31 of the evaporative condenser is connected with an outlet of the first flow regulating valve 15, the third port 33 of the evaporative condenser is connected with an outlet of the evaporator 12 and then is connected with an air suction port of the compressor 18, the fourth port 34 of the evaporative condenser is connected with an inlet of a water inlet pipe 19; a blower 11 is installed at the middle position of the inlet of the cylinder 10, an evaporator 12 is installed at the middle position of the cylinder 10 and behind the blower 11, a temperature and humidity sensor TH is installed on the outer wall surface of the cylinder 10, and a temperature sensor T is installed on the water inlet pipe 19 and in front of the evaporative condenser 13; the control module C1 is connected to the electronic valve expansion valve 16, the first flow regulating valve 15, the second flow regulating valve 14, the temperature and humidity sensor TH, and the temperature sensor T, respectively, and to the compressor inverter VVVF.
An evaporator 12 is arranged in the middle of the air duct 10, and when the temperature and the humidity of air are high and high, the temperature and the humidity of the air can be adjusted through the evaporator 12, so that the snow making machine can stably make snow under multi-region climatic conditions, and the snow making quality is ensured.
The water inlet temperature is adjusted through the evaporative condenser 13 to meet the snow making requirements under different water temperatures, so that the snow making machine can stably make snow under the multi-region climatic conditions, and the snow making quality is ensured.
The compressor 18, the condenser 17, the electronic expansion valve 16, the first flow regulating valve 15, the second flow regulating valve 14, the evaporative condenser 13 and the evaporator 12 form a refrigeration system of the snow making machine, the refrigeration system respectively regulates air temperature and humidity and water inlet temperature through the evaporator 12 and the evaporative condenser 13 to meet snow making requirements under multi-region climate conditions, and the refrigeration system can regulate the refrigerant quantity and the refrigerant temperature entering the evaporator 12 and the evaporative condenser 13 through the first flow regulating valve 15 and the second flow regulating valve 14 of the electronic expansion valve 16, so that the air temperature and humidity and the water inlet temperature can be accurately controlled.
The nozzles and the nucleonic machines are arranged on the inner surface of the machine barrel 10 in a number of 2: 1-4: 1, namely two, three or four nozzles are continuously arranged and one nucleonic machine is arranged.
A control method of a snow making machine suitable for multi-region climatic conditions comprises the following steps: the temperature and humidity sensor TH outputs a signal to the control module C1, and the control module C1 adjusts the electronic expansion valve 16 and the first flow rate according to the pre-written control logicThe opening degree of the valve 15 and the opening degree of the second flow regulating valve 14 control the start and stop of the compressor 18, the temperature and humidity sensor TH detects the ambient temperature and humidity and transmits the ambient temperature and humidity to the control module C1, and the control module C1 calculates the wet bulb temperature TwWet bulb temperature T according to the environmentwAnd inlet water temperature TinThe control and regulation are carried out to meet the snow making requirements under different regional climate conditions, and the specific control method is as follows:
when T isw＞t0Or Tin＞t1The compressor 18 is turned on, otherwise the compressor 18 is in a shutdown state;
when t is0＜Tw＜t2And t1＜Tin＜t3The operating frequency of the compressor 18 being f1The control of the respective valve openings is as follows: the electronic expansion valve 16 has an opening degree of n1The first flow rate regulation valve 15 and the second flow rate regulation valve 14 are fully opened;
when t is2＜TwOr t3＜TinAt this time, the compressor 18 is fully operated and the electronic expansion valve 16 is opened at n degrees2The two flow regulating valves are controlled as follows: t isw＞t2And Tin＞t3At this time, the first flow rate regulation valve 15 and the second flow rate regulation valve 14 are fully opened; t isw＞t2And t1＜Tin＜t3When the first flow rate adjusting valve 15 is opened by n3The second flow rate adjustment valve 14 is fully open; t isw＞t2And Tin＜t1At this time, the first flow rate adjustment valve 15 is closed, and the second flow rate adjustment valve 14 is fully opened; t is t0＜Tw＜t2And t3＜TinAt this time, the first flow rate adjustment valve 15 is fully opened, and the second flow rate adjustment valve 14 is opened by n degrees4；Tw＜t0And t3＜TinWhen the valve is closed, the first flow regulating valve 15 is fully opened, and the second flow regulating valve 14 is closed;
wherein the setting parameter f1、t0、t1、t2、t3、n1、n2、n3、n4The value ranges are shown in the following table:
Figure RE-GDA0003009140360000041
according to the working method of the snow making machine suitable for the multi-region climatic conditions, water enters each nozzle and each nuclear device through the water inlet pipe 19 respectively, air is sent into each nuclear device by the air compressor 09 and is mixed with the water, the water is atomized and sprayed out by the nozzles to form water mist, the water vapor mixture is atomized and sprayed out by the nuclear devices to form ice particles, the water mist and the ice particles are fully mixed under the action of wind blown by the fan 11, and the ice particles absorb the water mist to grow into snowflakes; the working process of the refrigerating system is as follows: the compressor 18 compresses the refrigerant and sends the refrigerant into the condenser 17 to condense and form liquid, then the liquid passes through the electronic expansion valve 16 for throttling, then enters the evaporative condenser 13 and the evaporator 12 through the first flow regulating valve 15 and the second flow regulating valve 14 respectively for evaporation, and then joins from the evaporative condenser 13 and the evaporator 12 and enters the compressor 18; the refrigeration system regulates and controls the temperature of water and air entering the snow making machine through the evaporator 12 and the evaporator condenser 13, so that the snow making machine can stably make snow under the multi-region climate condition, and the specific regulating and controlling method comprises the following steps: the temperature and humidity sensor TH and the temperature sensor T respectively detect the temperature and the humidity of air and the water temperature, and transmit signals to the control module C1, the control module C1 controls the opening degrees of the electronic expansion valve 16, the first flow regulating valve 15 and the second flow regulating valve 14 and the frequency of the compressor 18 according to the control logic written in advance, the air temperature and the water temperature can be controlled within the preset range through the regulation and control method, and the snow making efficiency and the snow making quality are effectively improved.
Compared with the prior art, the invention has the following advantages:
1. the invention provides a snow-making machine suitable for multi-region climatic conditions.A refrigeration system is added on the basis of the original snow-making machine, and the temperature and humidity of air entering the snow-making machine and the temperature of inlet water can be independently controlled.
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 a temperature sensor T, and accurately controls the frequency of a compressor 18, an electronic expansion valve 16, a first flow regulating valve 15 and a second flow regulating valve 14 through a preset control logic, so that the snow making machine can make snow efficiently under multi-region climatic conditions.
Drawings
Fig. 1 is a schematic view of a snowmaker suitable for multi-regional climate conditions 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 suitable for the multi-region climate condition of the present invention comprises a cylinder 10, and a first nozzle 01, a second nozzle 02, a third nozzle 03, a first nucleon 04, a fourth nozzle 05, a fifth nozzle 06, a sixth nozzle 07 and a second nucleon 08 which are sequentially installed on the inner surface of the cylinder 10; the water inlet pipe 19 is respectively connected with a first nozzle 01, a second nozzle 02, a third nozzle 03, a first nucleon device 04, a fourth nozzle 05, a fifth nozzle 06, a sixth nozzle 07 and a second nucleon device 08, and the air compressor 09 is connected with the first nucleon device 04 and the second nucleon device 08; an exhaust port of a compressor 18 is connected with an inlet of a condenser 17, an outlet of the condenser 17 is connected with an inlet of an electronic expansion valve 16, an outlet of the electronic expansion valve 16 is respectively connected with inlets of a first flow regulating valve 15 and a second flow regulating valve 14, an outlet of the second flow regulating valve 14 is connected with an inlet of an evaporator 12, a first port 31 of an evaporative condenser is communicated with a third port 33 of the evaporative condenser, a second port 32 of the evaporative condenser is communicated with a fourth port 34 of the evaporative condenser, the first port 31 of the evaporative condenser is connected with an outlet of the first flow regulating valve 15, the third port 33 of the evaporative condenser is connected with an outlet of the evaporator 12 and then is connected with an air suction port of the compressor 18, a fourth port 34 of the evaporative condenser is connected with an inlet of a water inlet pipe 19; a blower 11 is installed at the middle position of the inlet of the cylinder 10, an evaporator 12 is installed at the middle position of the cylinder 10 and behind the blower 11, a temperature and humidity sensor TH is installed on the outer wall surface of the cylinder 10, and a temperature sensor T is installed on the water inlet pipe 19 and in front of the evaporative condenser 13; the control module C1 is connected to the electronic valve expansion valve 16, the first flow regulating valve 15, the second flow regulating valve 14, the temperature and humidity sensor TH, and the temperature sensor T, respectively, and to the compressor inverter VVVF.
An evaporator 12 is arranged in the middle of the air duct 10, and when the temperature and the humidity of air are high and high, the temperature and the humidity of the air can be adjusted through the evaporator 12, so that the snow making machine can stably make snow under multi-region climatic conditions, and the snow making quality is ensured.
The water inlet temperature is adjusted through the evaporative condenser 13 to meet the snow making requirements under different water temperatures, so that the snow making machine can stably make snow under the multi-region climatic conditions, and the snow making quality is ensured.
The compressor 18, the condenser 17, the electronic expansion valve 16, the first flow regulating valve 15, the second flow regulating valve 14, the evaporative condenser 13 and the evaporator 12 form a refrigeration system of the snow making machine, the refrigeration system respectively regulates air temperature and humidity and water inlet temperature through the evaporator 12 and the evaporative condenser 13 to meet snow making requirements under multi-region climate conditions, and the refrigeration system can regulate the refrigerant quantity and the refrigerant temperature entering the evaporator 12 and the evaporative condenser 13 through the first flow regulating valve 15 and the second flow regulating valve 14 of the electronic expansion valve 16, so that the air temperature and humidity and the water inlet temperature can be accurately controlled.
The invention relates to a control method of a snow making machine suitable for multi-region climatic conditions, which comprises the following steps: the temperature and humidity sensor TH outputs signals to the control module C1, the control module C1 adjusts the opening degrees of the electronic expansion valve 16, the first flow regulating valve 15 and the second flow regulating valve 14 according to control logic written in advance to control the start and stop of the compressor 18, the temperature and humidity sensor TH detects the ambient temperature and humidity and transmits the ambient temperature and humidity to the control module C1, and the control module C1 calculates the wet bulb temperature TwWet bulb temperature T according to the environmentwAnd inlet water temperature TinThe control and regulation are carried out to meet the snow making requirements under different regional climate conditions, and the specific control method is as follows:
when T isw＞t0Or Tin＞t1The compressor 18 is on and in other cases the compressor 18 is off.
When t is0＜Tw＜t2And t1＜Tin＜t3The operating frequency of the compressor 18 being f1The control of the respective valve openings is as follows: the electronic expansion valve 16 has an opening degree of n1The first flow rate adjustment valve 15 and the second flow rate adjustment valve 14 are fully opened.
When t is2＜TwOr t3＜TinWhen the compressor is in full load operation, the opening degree of the electronic expansion valve 16 is n2The two flow regulating valves are controlled as follows: t isw＞t2And Tin＞t3At this time, the first flow rate regulation valve 15 and the second flow rate regulation valve 14 are fully opened; t isw＞t2And t1＜Tin＜t3When the first flow rate adjusting valve 15 is opened by n3The second flow rate adjustment valve 14 is fully open; t isw＞t2And Tin＜t1At this time, the first flow rate adjustment valve 15 is closed, and the second flow rate adjustment valve 14 is fully opened; t is t0＜Tw＜t2And t3＜TinAt this time, the first flow rate adjustment valve 15 is fully opened, and the second flow rate adjustment valve 14 is opened by n degrees4；Tw＜t0And t3＜TinAt this time, the first flow rate adjustment valve 15 is fully opened, and the second flow rate adjustment valve 14 is closed.
Wherein the setting parameter f1、t0、t1、t2、t3、n1、n2、n3、n4The value ranges are shown in the following table:
Figure RE-GDA0003009140360000081
according to the working method of the snow making machine suitable for the multi-region climatic conditions, water enters each nozzle and each nuclear device through the water inlet pipe 19 respectively, air is sent into each nuclear device by the air compressor 09 and is mixed with the water, the water is atomized and sprayed out by the nozzles to form water mist, the water vapor mixture is atomized and sprayed out by the nuclear devices to form ice particles, the water mist and the ice particles are fully mixed under the action of wind blown by the fan 11, and the ice particles absorb the water mist to grow into snowflakes; the working process of the refrigerating system is as follows: the compressor 18 compresses the refrigerant and sends the refrigerant to the condenser 17 to be condensed into liquid, then the liquid is throttled by the electronic expansion valve 16, enters the evaporative condenser 13 and the evaporator 12 through the first flow regulating valve 15 and the second flow regulating valve 14 respectively to be evaporated, and then the liquid is converged from the evaporative condenser 13 and the evaporator 12 to enter the compressor 18. The refrigeration system regulates and controls the temperature of water and air entering the snow making machine through the evaporator 12 and the evaporator condenser 13, so that the snow making machine can stably make snow under the multi-region climate condition, and the specific regulating and controlling method comprises the following steps: the temperature and humidity sensor TH and the temperature sensor T respectively detect the temperature and the humidity of air and the water temperature, and transmit signals to the control module C1, the control module C1 controls the opening degrees of the electronic expansion valve 16, the first flow regulating valve 15 and the second flow regulating valve 14 and the frequency of the compressor 18 according to the control logic written in advance, and the temperature and the water temperature can be controlled within a proper range through the process method, so that the snow making efficiency and the snow making quality are effectively improved.

Claims (7)

1. A snow making machine suitable for multi-region climatic conditions is characterized in that: comprises a machine barrel (10) and a plurality of nozzles and a plurality of nucleon devices which are arranged on the inner surface of the machine barrel (10); the water inlet pipe (19) is respectively connected with each nozzle and each nuclear device, and the air compressor (09) is connected with each nuclear device; an exhaust port of a compressor (18) is connected with an inlet of a condenser (17), an outlet of the condenser (17) is connected with an inlet of an electronic expansion valve (16), an outlet of the electronic expansion valve (16) is respectively connected with inlets of a first flow regulating valve (15) and a second flow regulating valve (14), an outlet of the second flow regulating valve (14) is connected with an inlet of an evaporator (12), a first port (31) of an evaporative condenser is communicated with a third port (33) of the evaporative condenser, a second port (32) of the evaporative condenser is communicated with a fourth port (34) of the evaporative condenser, the first port (31) of the evaporative condenser is connected with an outlet of the first flow regulating valve (15), and the third port (33) of the evaporative condenser is connected with an outlet of the evaporator (12), then the evaporator condenser is connected with an air suction port of the compressor (18), a fourth port (34) of the evaporator condenser is connected with an inlet of the water inlet pipe (19), and a second port (32) of the evaporator condenser is connected with an outlet of the water inlet pipe (19); a fan (11) is arranged in the middle of the inlet of the machine barrel (10), an evaporator (12) is arranged in the middle of the machine barrel (10) and behind the fan (11), a temperature and humidity sensor (TH) is arranged on the outer wall surface of the machine barrel (10), and a temperature sensor (T) is arranged on the water inlet pipe (19) and in front of the evaporative condenser (13); the control module (C1) is respectively connected with the electronic valve expansion valve (16), the first flow regulating valve (15), the second flow regulating valve (14), the temperature and humidity sensor (TH) and the temperature sensor (T) and is connected with the compressor frequency converter (VVVF).
2. A snow-making machine adapted for use in multi-regional climatic conditions, according to claim 1, wherein: an evaporator (12) is arranged in the middle of the air duct (10), and when the temperature and the humidity of air are higher and higher, the temperature and the humidity of the air are adjusted through the evaporator (12), so that the snow making machine can stably make snow under the multi-region climatic conditions, and the snow making quality is ensured.
3. A snow-making machine adapted for use in multi-regional climatic conditions, according to claim 1, wherein: the temperature of the inlet water is adjusted through the evaporative condenser (13), so that the snow making requirements under different water temperatures are met, the snow making machine can stably make snow under the multi-region climatic conditions, and the snow making quality is ensured.
4. A snow-making machine adapted for use in multi-regional climatic conditions, according to claim 1, wherein: the refrigerating system of the snow making machine is composed of the compressor (18), the condenser (17), the electronic expansion valve (16), the first flow regulating valve (15), the second flow regulating valve (14), the evaporative condenser (13) and the evaporator (12), air temperature and humidity and water inlet temperature are respectively regulated by the evaporator (12) and the evaporative condenser (13) to meet snow making requirements under multi-region climatic conditions, and the refrigerating system can regulate the quantity of refrigerant entering the evaporator (12) and the evaporative condenser (13) and the temperature of the refrigerant through the electronic expansion valve (16), the first flow regulating valve (15) and the second flow regulating valve (14), so that the air temperature and the humidity and the water inlet temperature are accurately controlled.
5. A snow-making machine adapted for use in multi-regional climatic conditions, according to claim 1, wherein: the nozzles and the nucleon devices are arranged on the inner surface of the machine barrel (10) in the number of 2: 1-4: 1, namely two, three or four nozzles are continuously arranged and one nucleon device is arranged.
6. A method for controlling a snow-making machine adapted to multi-regional climatic conditions, as claimed in any one of claims 1 to 5, wherein: the temperature and humidity sensor (TH) outputs signals to the control module (C1), the control module (C1) adjusts the opening degrees of the electronic expansion valve (16), the first flow regulating valve (15) and the second flow regulating valve (14) according to control logic written in advance, the start and stop of the compressor (18) are controlled, the temperature and humidity sensor (TH) detects the ambient temperature and humidity and transmits the ambient temperature and humidity to the control module (C1), and the control module (C1) calculates the wet bulb temperature TwWet bulb temperature T according to the environmentwAnd inlet water temperature TinThe control and regulation are carried out to meet the snow making requirements under different regional climate conditions, and the specific control method is as follows:
when T isw＞t0Or Tin＞t1When the compressor (18) is started, the compressor (18) is in a shutdown state under other conditions;
when t is0＜Tw＜t2And t1＜Tin＜t3The operating frequency of the compressor (18) is f1The control of the respective valve openings is as follows: the opening degree of the electronic expansion valve (16) is n1The first flow regulating valve (15) and the second flow regulating valve (14) are fully opened;
when t is2＜TwOr t3＜TinWhen the compressor (18) is in full load operation, the opening degree of the electronic expansion valve (16) is n2The two flow regulating valves are controlled as follows: t isw＞t2And Tin＞t3When the valve is opened, the first flow regulating valve (15) and the second flow regulating valve (14) are fully opened; t isw＞t2And t1＜Tin＜t3When the flow rate is increased, the opening degree of the first flow rate adjusting valve (15) is n3The second flow regulating valve (14) is fully opened; t isw＞t2And Tin＜t1In time, the first flow control valve (15)Closed, the second flow regulating valve (14) is fully opened; t is t0＜Tw＜t2And t3＜TinWhen the valve is in operation, the first flow rate regulating valve (15) is fully opened, and the second flow rate regulating valve (14) is opened by n4；Tw＜t0And t3＜TinWhen the valve is opened, the first flow regulating valve (15) is fully opened, and the second flow regulating valve (14) is closed;
wherein the setting parameter f1、t0、t1、t2、t3、n1、n2、n3、n4The value ranges are shown in the following table:
Figure FDA0002928007660000041
7. method of operating a snow-making machine adapted to multi-zone climatic conditions, as claimed in any one of claims 1 to 5, characterized in that: water respectively enters each nozzle and each nuclear device through a water inlet pipe (19), air is sent into each nuclear device by an air compressor (09) and is mixed with the water, the water is atomized and sprayed out by the nozzles to form water mist, the water vapor mixture is atomized and sprayed out by the nuclear devices to form ice particles, the water mist and the ice particles are fully mixed under the action of wind blown out by a fan (11), and the ice particles absorb the water mist to grow into snowflakes; the working process of the refrigerating system is as follows: the compressor (18) compresses a refrigerant and sends the refrigerant into the condenser (17) to be condensed into liquid, then the liquid is throttled by the electronic expansion valve (16), enters the evaporative condenser (13) and the evaporator (12) through the first flow regulating valve (15) and the second flow regulating valve (14) to be evaporated, and then is converged from the evaporative condenser (13) and the evaporator (12) to enter the compressor (18); the refrigeration system regulates and controls the temperature of water and air entering the snow making machine through an evaporator (12) and an evaporator condenser (13), so that the snow making machine can stably make snow under the multi-region climate condition, and the specific regulating and controlling method comprises the following steps: the temperature and humidity sensor (TH) and the temperature sensor (T) respectively detect the temperature and the humidity of air and the water temperature, signals are transmitted to the control module (C1), the control module (C1) controls the opening degrees of the electronic expansion valve (16), the first flow regulating valve (15) and the second flow regulating valve (14) and the frequency of the compressor (18) according to control logic written in advance, the air temperature and the water temperature can be controlled within a preset range through the regulation and control method, and the snow making efficiency and quality are effectively improved.
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Cited By (1)

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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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