CN108168173B - Artificial snow making and heat supplying integrated system near snow road and above 0 ℃ and operation method thereof - Google Patents
Artificial snow making and heat supplying integrated system near snow road and above 0 ℃ and operation method thereof Download PDFInfo
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- CN108168173B CN108168173B CN201711382710.5A CN201711382710A CN108168173B CN 108168173 B CN108168173 B CN 108168173B CN 201711382710 A CN201711382710 A CN 201711382710A CN 108168173 B CN108168173 B CN 108168173B
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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
- F25C2303/048—Snow making by using means for spraying water
- F25C2303/0481—Snow making by using means for spraying water with the use of compressed air
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Abstract
The invention discloses an artificial snow making and heat supply integrated system near a snow channel and above 0 ℃ and an operation method thereof. According to the invention, a local low-temperature environment is created manually through the refrigerating system, artificial snow making under the climatic conditions above 0 ℃ can be realized without depending on external environmental conditions, the quality of the formed snow is higher, waste heat generated in the production process is recovered for heat supply, the energy utilization efficiency of the system is improved, and energy conservation and environmental protection are realized; the small-sized snow making machine is used for making snow in a limited space, the depth layout is adopted in the snow making chamber, the snow making distance is sufficient, the snow making machine is suitable for being arranged near the line of a flat or mountain snow road, and a snow outlet is arranged, so that the produced snow is convenient to transport to the snow road; the invention adopts an airflow organization mode of air outlet at two sides and air return at the top, and is provided with the air outlet guide vanes and the water mist nozzles with adjustable directions, so that the spray direction and the air outlet direction of the water mist can be adjusted according to actual operation requirements, the indoor flow field, the temperature field and the humidity field are efficiently cooperated, the cold energy is effectively utilized, and the operation cost is reduced.
Description
Technical Field
The invention relates to a snowmaking technology, in particular to a snowmaking and heat supply integrated system near a snowway and above 0 ℃ and an operation method thereof.
Background
The main equipment of traditional artificial snow making is a snowgun, air pressurized by a compressor and water pressurized by a pump are sprayed out from a nozzle in the snowgun and are fully mixed, and atomized by the nozzle and high-pressure air to form crystal nuclei for further crystallization, and inorganic or organic chemical substances such as a protein from a certain bacterium are often added for promoting the formation of the crystal nuclei. The water droplets and the crystals are then mixed and ejected from the snowgun, and during landing on the ground, the water droplets are partially evaporated in the air to cool them further, and finally snowflakes are formed before landing. The quality of the snowflake can be controlled by adjusting the proportion of air and water, but the method is only suitable for the condition that the wet bulb temperature of the air is below minus 2 ℃, and the lower the temperature is, the higher the quality and the quantity of the snowflake are.
The method for producing snow in the closed environment with controllable temperature and humidity conditions by the traditional snow producing cannon can realize snow production under any weather conditions without being limited by external environment by cooling air and water by a cooling device, but the method directly cools the air (or liquid) by cold compressed gas, so that the cost and energy consumption for producing the compressed gas (or liquid) are high, and the technology still adopts the traditional snow cannon, so that the closed environment required by the snow production is large, and the utilization of the internal space still needs to be further optimized.
Another method for realizing snow making at any ambient temperature is to make ice scraps or ice slurry in different forms by using ice making equipment, then further crushing and pressing the ice scraps or ice slurry into a state similar to snow, 4 foreign companies develop snow making equipment with the temperature of more than 0 ℃ by using the principle, and specific technical parameters are shown in the following table.
It follows that high quality artificial snow is not replaced by crushed ice and must be produced by natural snowfall principle in a controlled local low temperature environment.
Disclosure of Invention
In order to facilitate transportation of produced snow to a snow channel, an artificial local low-temperature environment is arranged near the snow channel along the line, and the invention designs a deep layout to arrange a snow-making path; in order to save energy and reduce consumption and running cost, the invention also fully considers reasonable organization and dynamic adjustment of air flow in the artificial local low-temperature environment, adopts a high-efficiency and environment-friendly refrigerating system to provide cold for the artificial local low-temperature environment, and effectively utilizes waste heat generated in the production process.
The invention aims to provide an artificial snow making and heat supply integrated system which is close to a snow channel and is higher than 0 ℃.
The invention relates to an artificial snow making and heat supply integrated system near a snow channel and above 0 ℃, which comprises: the device comprises a water mist nozzle, a snow making machine, a fan, an evaporator, a grid set, an upper baffle, a lower baffle, guide vanes, a rotating shaft, a snow outlet, a snow making chamber, a heat recovery device, an air compressor and a water pump; the water mist nozzle, the snow making machine, the fan, the evaporator, the grid set, the upper baffle, the lower baffle, the guide vane, the rotating shaft and the snow outlet are arranged in the snow making chamber; the heat recovery device, the air compressor and the water pump are arranged outside the snow making chamber; the top wall of the snow making chamber is provided with an evaporator at the position of the central shaft along the length direction, the lower surface of the evaporator is an air return port, and the surfaces of the two side walls of the snow making chamber, which are opposite to the two sides of the evaporator along the width direction of the snow making chamber, are air outlet ports; vertical grating groups are arranged at the lower edges of air outlets on two sides or one side of the evaporator, an upper baffle plate and a lower baffle plate which are horizontally arranged are respectively arranged at the top end and the bottom end of each grating group, and each grating group is fixed between the upper baffle plate and the lower baffle plate; each grid group comprises an inner grid and an outer grid which are parallel to each other, the inner grids face the side wall of the snow making chamber and the side wall of the snow making chamber respectively, and a plurality of rows of ventilation openings are formed in the positions corresponding to the inner grids and the outer grids; one side of each upper baffle plate along the width direction of the snow making chamber is fixed at the lower edge of the air outlet at the same side of the evaporator, and the upper baffle plates are spaced from the side wall of the snow making chamber at the same side; one end of each lower baffle plate along the width direction of the snow making chamber is fixed on the side wall of the same side snow making chamber; therefore, an air outlet channel is formed between the air outlet of the evaporator and the side wall of the outer grille and the side wall of the snow making chamber, and between the top wall of the snow making chamber and the upper baffle plate and the lower baffle plate, two symmetrical air outlet channels are respectively formed at the air outlets at the two sides of the evaporator, or an air outlet channel is formed at the air outlet at one side of the evaporator; a plurality of vertical rotating shafts are arranged in each grid group along the center line between the inner grids and the outer grids of the grid group and are respectively fixed between the upper baffle plate and the lower baffle plate; a guide vane is arranged on each rotating shaft and can rotate around the rotating shaft; a snow outlet is formed in a position below a lower baffle plate of the side wall of the snow making room; a snow making machine is arranged at one end of the snow making chamber along the length direction, a fan is arranged at the back of the snow making machine, a plurality of water mist nozzles are arranged at the front of the snow making machine, the water mist nozzles face the snow making chamber, and the spraying direction of each water mist nozzle can be independently adjusted; the snow making machine is connected to an air compressor and a water pump outside the snow making room through pipelines; the evaporator is connected to a heat recovery device outside the snow making room through a pipeline; the snow making room is arranged beside the snow channel; the air enters the snow making machine through the compressor and the water pump, and is sprayed out through the water mist nozzle after being fully mixed; meanwhile, high-temperature air in the snow making room enters the evaporator through the return air inlet and exchanges heat with the low-temperature circulating working medium from the heat recovery device to cool, the cooled air enters the air outlet channel through the air outlets on two sides of the evaporator respectively, flows through the grid group and the guide blades therein and returns to the snow making room, the circulating working medium after heat exchange flows back to the heat recovery device and releases heat to cool air or cold water to cool, and the heated air or water is used for heating; the rotation angle of the guide blades in the grid set and the spraying direction of the water mist nozzle are adjusted, so that the direction of the guide blades is parallel to the spraying direction of the water mist nozzle, cooled air returned into the snow making chamber through the grid set faces the spraying direction of the water mist, the water mist and the cold air exchange heat fully, the water mist is condensed into snow at the snow making temperature in the snow making chamber, and the snow is conveyed out from the snow outlet to the snow channel.
The space inside the snow making chamber is cuboid, and the central shaft is along the length direction; the bottom wall and the top wall of the snow making chamber can be horizontal or inclined according to the ground topography. The space clearance height in the snow making room is more than 4 meters; and the wall of the snow making room is insulated. The indoor snow making temperature of the snow making room is below 0 ℃.
The snow making machine is arranged on the top wall of the snow making chamber through the suspension bracket, and the distance between the snow making machine and the wall body at one end of the snow making chamber along the length direction is 0.5-2 meters. The height of the water mist nozzle in front of the snowmaking machine is more than 2 meters.
The guide blades are parallel to the rotation shaft and rotatable about the rotation shaft, and the rotation angle can be rotated 180 ° from a position parallel to the grid set.
The included angle between the spray direction of the spray nozzle and the central axis of the snow making chamber is regulated to be 0-45 degrees.
The ventilation openings on the inner grille and the outer grille are in various forms, and are in a shutter form or are arranged in an array by small round holes.
Further, a plurality of snow making chambers are arranged beside the snow road in series, the length direction of each snow making chamber is consistent with the trend of the snow road, and the wall bodies between the adjacent snow making chambers are removed and connected into a whole to form a system of cascading the plurality of snow making chambers. The plurality of snow producing chambers can also be independently arranged beside the snow road, and the length direction of the snow producing chambers can form an included angle of 0-90 degrees with the trend of the snow road.
When the snow channel is only arranged on one side of the snow making chamber, a grid set, guide blades, a rotating shaft, a snow outlet, an upper baffle plate and a lower baffle plate are arranged on one side of the snow making chamber, which is close to the snow channel. If the snow channel is arranged on two sides of the snow making chamber, the two sides of the snow making chamber are respectively provided with a grid group, guide blades, a rotating shaft, a snow outlet, an upper baffle plate and a lower baffle plate, so that symmetrical air outlet channels are formed.
Another object of the present invention is to provide a method for operating an integrated system for making and supplying artificial snow at a temperature above 0 ℃ near a snow aisle.
The invention relates to an operation method of a snowmaking and heat supply integrated system near a snowway at a temperature of more than 0 ℃, which comprises the following steps:
1) A snow preparation stage:
the high-temperature air in the snow making room enters the evaporator through the return air inlet to exchange heat with the low-temperature circulating working medium from the heat recovery device for cooling, the circulating working medium after heat exchange flows to the heat recovery device through a pipeline and releases heat to cool air or cool water, and then flows back to the evaporator through another pipeline, thus the air after cooling enters the air outlet channel through the air outlets on two sides or one side of the evaporator and returns to the snow making room through the air vents of the grid group, thereby the temperature in the snow making room is reduced to the snow making temperature below 0 ℃, and the air or water heated in the heat recovery device is used for heating;
2) And (3) a snow making stage:
a) Air in or out of the snow making chamber flows to the air compressor through a pipeline, and air pressurized by the air compressor flows to the snow making machine through another pipeline; supplying water from a water source to a water pump through a pipeline, enabling the water pressurized by the water pump to flow to a snow making machine through another pipeline, fully mixing the water and air in the snow making machine, and injecting the water and air through a water mist nozzle;
b) The water mist is sprayed into the snow making chamber under the driving of the air outlet of the fan;
c) Meanwhile, high-temperature air in the snow making room enters the evaporator through the return air inlet to exchange heat with the low-temperature circulating working medium from the heat recovery device for cooling, the circulating working medium after heat exchange flows to the heat recovery device through a pipeline and releases heat to cold air or cold water for cooling, and then flows back to the evaporator through another pipeline, so that the air after cooling enters the air outlet channel through the air outlets on two sides or one side of the evaporator, flows into the snow making room through the ventilation openings of the grid group and the flow direction of the air is controlled by the guide blades so as to maintain the snow making temperature in the snow making room, and the air or water heated in the heat recovery device is used for heating;
d) The rotation angle of the guide blades in the grid set and the spraying direction of the water mist nozzle are adjusted, so that the direction of the guide blades is parallel to the spraying direction of the water mist nozzle, and cooled air returned into the snow making chamber through the grid set faces the spraying direction of the water mist, so that the water mist and the cold air can exchange heat fully;
e) The water mist is condensed into snow at the temperature of the snow in the snow making chamber, finally falls to the bottom wall of the snow making chamber, and the formed snow is transported from the snow making chamber to a nearby snow channel through a snow outlet.
The invention has the advantages that:
according to the invention, a local low-temperature environment is created manually through the refrigerating system, artificial snow making under the climatic conditions above 0 ℃ can be realized without depending on external environmental conditions, the quality of the formed snow is higher, waste heat generated in the production process is recovered for heat supply, the energy utilization efficiency of the system is improved, and energy conservation and environmental protection are realized; the small-sized snow making machine is used for making snow in a limited space, the depth layout is adopted in the snow making chamber, the snow making distance is sufficient, the snow making machine is suitable for being arranged near the line of a flat or mountain snow road, and a snow outlet is arranged, so that the produced snow is convenient to transport to the snow road; the invention adopts an airflow organization mode of air outlet at two sides and air return at the top, and is provided with the air outlet guide vanes and the water mist nozzles with adjustable directions, so that the spray direction and the air outlet direction of the water mist can be adjusted according to actual operation requirements, the indoor flow field, the temperature field and the humidity field are efficiently cooperated, the cold energy is effectively utilized, and the operation cost is reduced.
Drawings
FIG. 1 is a side view of an integrated snowmaking and heating system of the present invention above 0℃ for a near snow aisle;
FIG. 2 is a top view of the integrated system for artificial snow and heat supply above 0 ℃ in a near snow path of the present invention;
fig. 3 is a front view of the integrated system for artificial snow and heat supply of the present invention at a temperature above 0 c near the snow path.
Detailed Description
The invention will be further elucidated by means of specific embodiments in conjunction with the accompanying drawings.
In the embodiment, two sides in the snow making room are provided with a grid set, guide vanes, a rotating shaft, a snow outlet, an upper baffle and a lower baffle, so that symmetrical air outlet channels are formed.
As shown in fig. 1, the integrated system for artificial snow and heat supply at a temperature above 0 ℃ near a snow road of the present embodiment includes: the snow making machine comprises a water mist nozzle 1, a snow making machine 2, a fan 3, a suspension bracket 4, an evaporator 5, two groups of grid groups 8, an upper baffle 17, a lower baffle 18, guide vanes 9, a rotating shaft 10, a snow outlet 11, a snow making chamber 12, a heat recovery device 14, an air compressor 15 and a water pump 16; wherein, the inner space of the snow making room 12 is cuboid, the bottom wall 13 and the top wall can be horizontal or inclined according to the ground; the water spray nozzle 1, the snow maker 2, the fan 3, the evaporator 5, the grid set 8, the guide vane 9, the rotating shaft 10 and the snow outlet 11 are arranged in the snow making chamber 12; the heat recovery device 14, the air compressor 15 and the water pump 16 are arranged outside the snow making chamber 12; the top wall in the snow making chamber 12 is provided with an evaporator 5 at a position which is positioned at a central shaft along the length direction, the lower surface of the evaporator 5 is provided with a return air inlet 6, and the surfaces of two side walls of the evaporator 5 which respectively face the snow making chamber 12 along the width direction of the snow making chamber 12 are provided with air outlets 7; vertical grating groups 8 are respectively arranged at the lower edges of air outlets at two sides of the snow making chamber 12 of the evaporator 5, an upper baffle 17 and a lower baffle 18 which are horizontally arranged are respectively arranged at the top end and the bottom end of each grating group 8, and each grating group 8 is fixed between the upper baffle 17 and the lower baffle 18; each group of the grating groups 8 comprises an inner grating and an outer grating which are parallel to each other, and a plurality of rows of ventilation openings are respectively formed in positions corresponding to the inner grating and the outer grating and face the inside of the snow making chamber 12 and the side wall of the snow making chamber 12; one end of each upper baffle 17 along the width direction of the snow making chamber 12 is fixed at the lower edge of the air outlet 7 at the same side of the evaporator 5, and the upper baffles are spaced from the side wall of the snow making chamber 12 at the same side; one end of each lower baffle 18 in the width direction of the snow making chamber 12 is fixed to the side wall of the same side snow making chamber 12; thus, an air outlet channel is formed between the air outlet 7 of the evaporator 5 and the side wall of the outer grille and the snow making chamber 12, and between the top wall of the snow making chamber 12 and the upper baffle 17 and the lower baffle 18, and two symmetrical air outlet channels are respectively formed at the air outlets 7 at the two sides of the evaporator 5; a plurality of vertical rotating shafts 10 are arranged in each grid group 8 along the central line between the inner grids and the outer grids of the grid group 8 and are respectively fixed between an upper baffle 17 and a lower baffle 18; a guide vane 9 is provided on each of the rotary shafts 10 to be rotatable about the rotary shaft 10; a snow outlet 11 is formed in the position below the lower baffle plates 18 of the two side walls of the snow making chamber 12; a snow making machine 2 is arranged at one end of the snow making chamber 12 along the length direction, the snow making machine is arranged on the top wall of the snow making chamber 12 through a suspension bracket 4, a fan 3 is arranged on the back surface of the snow making machine 2, a plurality of water mist nozzles 1 are arranged on the front surface of the snow making machine 2, the water mist nozzles 1 face into the snow making chamber 12, and the spraying direction of the water mist nozzles 1 can be adjusted; the snow making machine 2 is connected with an air compressor 15 and a water pump 16 outside the snow making chamber 12 through pipelines; the evaporator 5 is connected to a heat recovery device 14 outside the snow making chamber 12 by a pipe; the snow making chamber 12 is disposed beside the snow aisle.
By adjusting the rotation angle of the guide blades 9 in the grid set 8 and the spraying directions of the plurality of water mist nozzles 1 facing the grid sets 8 on two sides respectively, the directions of the guide blades 9 on two sides are parallel to the spraying directions of the water mist nozzles 1 facing the same side respectively, so that the cooled air in the snow making chamber 12 is returned to the spraying directions of the water mist through the grid sets 8, the water mist and the cold air exchange heat fully, the water mist is condensed into snowflakes at the snow making temperature in the snow making chamber 12, falls onto the bottom wall 13, and is conveyed out from the snow outlet 11 onto a snow road.
Finally, it should be noted that the examples are disclosed for the purpose of aiding in the further understanding of the present invention, but those skilled in the art will appreciate that: various alternatives and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, the invention should not be limited to the disclosed embodiments, but rather the scope of the invention is defined by the appended claims.
Claims (10)
1. The artificial snow making and heat supply integrated system is characterized in that the artificial snow making and heat supply integrated system comprises: the device comprises a water mist nozzle, a snow making machine, a fan, an evaporator, a grid set, an upper baffle, a lower baffle, guide vanes, a rotating shaft, a snow outlet, a snow making chamber, a heat recovery device, an air compressor and a water pump; wherein the water spray nozzle, the snow maker, the fan, the evaporator, the grid set, the upper baffle, the lower baffle, the guide vane, the rotating shaft and the snow outlet are arranged in the snow making chamber; the heat recovery device, the air compressor and the water pump are arranged outside the snow making chamber; the top wall in the snow making chamber is provided with an evaporator at the position of the central shaft along the length direction, the lower surface of the evaporator is an air return port, and the surfaces of the two sides of the evaporator along the width direction of the snow making chamber, which are opposite to the two side walls of the snow making chamber, are air outlet ports respectively; vertical grating groups are arranged at the lower edges of air outlets on two sides or one side of the evaporator, an upper baffle plate and a lower baffle plate which are horizontally arranged are respectively arranged at the top end and the bottom end of each grating group, and each grating group is fixed between the upper baffle plate and the lower baffle plate; each grid group comprises an inner grid and an outer grid which are parallel to each other, the inner grids face the side wall of the snow making chamber and the side wall of the snow making chamber respectively, and a plurality of rows of ventilation openings are formed in the positions corresponding to the inner grids and the outer grids; one side of each upper baffle plate along the width direction of the snow making chamber is fixed at the lower edge of the air outlet at the same side of the evaporator, and the upper baffle plates are spaced from the side wall of the snow making chamber at the same side; one end of each lower baffle plate along the width direction of the snow making chamber is fixed on the side wall of the same side snow making chamber; therefore, an air outlet channel is formed between the air outlet of the evaporator and the side wall of the outer grille and the side wall of the snow making chamber, and between the top wall of the snow making chamber and the upper baffle plate and the lower baffle plate, two symmetrical air outlet channels are respectively formed at the air outlets at the two sides of the evaporator, or an air outlet channel is formed at the air outlet at one side of the evaporator; a plurality of vertical rotating shafts are arranged in each grid group along the center line between the inner grids and the outer grids of the grid group and are respectively fixed between the upper baffle plate and the lower baffle plate; a guide vane is arranged on each rotating shaft and can rotate around the rotating shaft; a snow outlet is formed in a position below a lower baffle plate of the side wall of the snow making room; a snow making machine is arranged at one end of the snow making chamber along the length direction, a fan is arranged at the back of the snow making machine, a plurality of water mist nozzles are arranged at the front of the snow making machine, the water mist nozzles face the snow making chamber, and the spraying direction of each water mist nozzle can be independently adjusted; the snow making machine is connected to an air compressor and a water pump outside the snow making room through pipelines; the evaporator is connected to a heat recovery device outside the snow making room through a pipeline; the snow making chamber is arranged beside the snow channel; the air enters the snow making machine through the compressor and the water pump, and is sprayed out through the water mist nozzle after being fully mixed; meanwhile, high-temperature air in the snow making room enters the evaporator through the return air inlet and exchanges heat with the low-temperature circulating working medium from the heat recovery device to cool, the cooled air enters the air outlet channel through the air outlets on two sides of the evaporator respectively, flows through the grid group and the guide blades therein and returns to the snow making room, the circulating working medium after heat exchange flows back to the heat recovery device and releases heat to cool air or cold water to cool, and the heated air or water is used for heating; the rotation angle of the guide blades in the grid set and the spraying direction of the water mist nozzle are adjusted, so that the direction of the guide blades is parallel to the spraying direction of the water mist nozzle, cooled air returned into the snow making chamber through the grid set faces the spraying direction of the water mist, the water mist and the cold air exchange heat fully, the water mist is condensed into snow at the snow making temperature in the snow making chamber, and the snow is conveyed out from the snow outlet to the snow channel.
2. The integrated snowmaking and heat supply system according to claim 1, wherein the space inside the snowmaking chamber is a cuboid, and the central axis is along the length direction; the bottom wall and the top wall of the snow making chamber are horizontal or inclined according to the ground topography.
3. The integrated snowmaking and heating system according to claim 1, wherein the space headroom in the snowmaking room is above 4 meters; and the wall of the snow making room is insulated.
4. The integrated snowmaking and heat supply system according to claim 1, further comprising a suspension bracket, wherein the snowmaking machine is installed on the top wall of the snowmaking room through the suspension bracket, and the distance between the snowmaking machine and the wall body at one end of the snowmaking room along the length direction is 0.5-2 meters; the height of the water mist nozzle in front of the snowmaking machine is more than 2 meters.
5. The integrated snowmaking and heating system according to claim 1, wherein said guide blades are parallel to the rotation axis and rotatable about the rotation axis by an angle of 180 ° from a position parallel to the grid set.
6. An integrated snowmaking and heating system according to claim 1, wherein the angle between the spray direction of the water mist nozzle and the central axis of the snowmaking room is adjusted in the range of 0-45 °.
7. The integrated snowmaking and heat supply system according to claim 1, wherein a plurality of snowmaking chambers are arranged beside the snow road in series, the length direction of the snowmaking chambers is consistent with the trend of the snow road, and the wall bodies between the adjacent snowmaking chambers are removed and connected into a whole to form a system for cascading the plurality of snowmaking chambers; or, a plurality of snow making chambers are independently arranged beside the snow road, and the length direction of the snow making chambers can form an included angle of 0-90 degrees with the trend of the snow road.
8. The integrated system for artificial snow making and heat supply according to claim 1, wherein a grid set, guide vanes, a rotating shaft, a snow outlet, an upper baffle plate and a lower baffle plate are arranged on two sides of the snow making chamber, and symmetrical air outlet channels are formed on two sides; or, only one side of the snow making room close to the snow channel is provided with a grid group, a guide blade, a rotating shaft, a snow outlet, an upper baffle plate and a lower baffle plate, and an air outlet channel is formed at one side.
9. The integrated snowmaking and heating system according to claim 1, wherein the ventilation openings on the inner and outer grilles are in the form of louvers or an array of small circular holes.
10. A method of operating an integrated snowmaking and heating system of claim 1 above 0 ℃ for a near snow aisle, the method comprising the steps of:
1) A snow preparation stage:
the high-temperature air in the snow making room enters the evaporator through the return air inlet to exchange heat with the low-temperature circulating working medium from the heat recovery device for cooling, the circulating working medium after heat exchange flows to the heat recovery device through a pipeline and releases heat to cool air or cool water, and then flows back to the evaporator through another pipeline, thus the air after cooling enters the air outlet channel through the air outlets on two sides or one side of the evaporator and returns to the snow making room through the air vents of the grid group, thereby the temperature in the snow making room is reduced to the snow making temperature below 0 ℃, and the air or water heated in the heat recovery device is used for heating;
2) And (3) a snow making stage:
a) Air in or out of the snow making chamber flows to the air compressor through a pipeline, and air pressurized by the air compressor flows to the snow making machine through another pipeline; supplying water from a water source to a water pump through a pipeline, enabling the water pressurized by the water pump to flow to a snow making machine through another pipeline, fully mixing the water and air in the snow making machine, and injecting the water and air through a water mist nozzle;
b) The water mist is sprayed into the snow making chamber under the driving of the air outlet of the fan;
c) Meanwhile, high-temperature air in the snow making room enters the evaporator through the return air inlet to exchange heat with the low-temperature circulating working medium from the heat recovery device for cooling, the circulating working medium after heat exchange flows to the heat recovery device through a pipeline and releases heat to cold air or cold water for cooling, and then flows back to the evaporator through another pipeline, so that the air after cooling enters the air outlet channel through the air outlets on two sides or one side of the evaporator, flows into the snow making room through the ventilation openings of the grid group and the flow direction of the air is controlled by the guide blades so as to maintain the snow making temperature in the snow making room, and the air or water heated in the heat recovery device is used for heating;
d) The rotation angle of the guide blades in the grid set and the spraying direction of the water mist nozzle are adjusted, so that the direction of the guide blades is parallel to the spraying direction of the water mist nozzle, and cooled air returned into the snow making chamber through the grid set faces the spraying direction of the water mist, so that the water mist and the cold air can exchange heat fully;
e) The water mist is condensed into snow at the temperature of the snow in the snow making chamber, finally falls to the bottom wall of the snow making chamber, and the formed snow is transported from the snow making chamber to a nearby snow channel through a snow outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711382710.5A CN108168173B (en) | 2017-12-20 | 2017-12-20 | Artificial snow making and heat supplying integrated system near snow road and above 0 ℃ and operation method thereof |
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| CN201711382710.5A CN108168173B (en) | 2017-12-20 | 2017-12-20 | Artificial snow making and heat supplying integrated system near snow road and above 0 ℃ and operation method thereof |
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| CN108168173B true CN108168173B (en) | 2023-10-20 |
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| DE102021123717A1 (en) * | 2020-09-23 | 2022-03-24 | Espec Corp. | APPARATUS FOR MAKING SNOW AND APPARATUS FOR FORMING AN ENVIRONMENT |
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|---|---|
| CN108168173A (en) | 2018-06-15 |
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