CN115218573B

CN115218573B - Snow maker capable of automatically adjusting collision position

Info

Publication number: CN115218573B
Application number: CN202210887224.3A
Authority: CN
Inventors: 董佩文; 熊通; 刘国强; 晏刚
Original assignee: Xian Jiaotong University
Current assignee: Xian Jiaotong University
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-06-02
Anticipated expiration: 2042-07-26
Also published as: CN115218573A

Abstract

The invention discloses a snow making machine capable of automatically adjusting collision positions. The snow maker can sense different environmental temperatures, and automatically adjusts the jet angle of the nucleon device to change the collision position of ice crystal nucleus and water drops. When the ambient temperature is higher, the heat exchange rate of water drops is slower, and the time required for freezing ice crystal nuclei is longer, so that the flying distance before collision needs to be increased, and the formation of the ice crystal nuclei is ensured. When the ambient temperature is lower, the freezing time of the ice crystal nuclei is shorter, so that the flying distance before collision can be reduced, longer time is striven for freezing the water drops after collision, and the snow quality is improved. The invention can adapt to snow making under different temperature conditions, automatically regulate and control collision positions, improve the quality of the formed snow, and is automatic and efficient, thereby saving manpower and material resources.

Description

Snow maker capable of automatically adjusting collision position

Technical Field

The invention belongs to the technical field of snow makers, and particularly relates to a snow maker capable of automatically adjusting collision positions.

Technical Field

Snow makers have been one of the indispensable equipment for ensuring the operation of a winter ski field as a snowmaking device that provides stable snow resources. The most widely used internal mixing type snow making machine at present adopts a nucleon device and a rotational flow nozzle as a core atomization component, high-pressure water is sprayed and atomized through the nozzle to form fine water drops, and the high-pressure water and compressed air are atomized into smaller water drops through the nucleon device. The atomized water drops of the nucleon device have smaller particle size, larger heat exchange specific surface area, faster heat exchange and less required cold energy, so that ice crystal nuclei can be quickly frozen at the outlet, and the ice crystal nuclei collide with the water drops to catalyze the water drops to be frozen, so that the water drops are frozen to form snowflakes before falling to the ground. The ice crystal nucleus is used as a key for forming snow, so that the ice crystal nucleus is ensured to be frozen before collision with water drops, and the effect of catalyzing the water drops to be frozen is achieved; and the water drops after collision can be frozen into snow before landing, so that the liquid water is prevented from landing, and the snow quality is seriously influenced. Therefore, it is necessary to adjust the collision position of the ice crystal nuclei and the water drops according to the actual environmental temperature, and to obtain more sufficient time for the water drops to freeze on the premise of ensuring the formation of the ice crystal nuclei so as to adjust and control the quality of the snow.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide a snow making machine capable of automatically adjusting collision positions, which can sense different environment temperatures, automatically adjust the jet angle of a nucleon device to change the collision positions of ice crystal nuclei and water drops so as to adapt to the snow making at different environment temperatures, improve the quality of the formed snow, and is automatic, efficient and saving manpower and material resources.

In order to achieve the above purpose, the invention adopts the following technical scheme:

a snowmaking machine capable of automatically adjusting collision position comprises a nozzle 1, a nucleon device 2, an air cylinder 3, a water pump 4, an air compressor 5 and a fan 6; the nozzles 1 and the nucleon devices 2 are arranged in the outlet circumference of the air duct 3 in a penetrating way, the nozzles 1 are arranged on the inner ring, the nucleon devices 2 are arranged on the outer ring, and every n nozzles and 1 nucleon device are in a group; the tail part of the nucleon device 2 can rotate around a rotating shaft 7, and the middle part of the nucleon device is supported by a fixed fulcrum 8; the pillar below the rotating shaft 7 is made of a thermal expansion material 9, so that the injection angle of the nucleon device 2 can be changed according to the thermal expansion and contraction of the ambient temperature, and the collision position of ice crystal nuclei and water drops can be regulated, and when the thermal expansion material 9 is contracted to the minimum volume, the nucleon device 2 is still inclined upwards relative to the horizontal plane; the water pump 4 supplies cold water to the nozzle 1 and the nucleon 2, the air compressor 5 supplies high-pressure air to the nucleon 2, and the fan 6 blows snow into the air.

When the ambient temperature is high, the included angle between the nucleon device 2 and the horizontal plane is reduced due to the volume expansion of the thermal expansion material 9, the distance between the flying position of the ice crystal nucleus from the nucleon device and the collision position of the ice crystal nucleus and water drops is large, and the flying distance of the ice crystal nucleus before collision is increased; when the ambient temperature is low, the included angle between the nucleoner 2 and the horizontal plane is increased due to the volume shrinkage of the thermal expansion material 9, the distance between the flying position of the ice crystal nucleus from the nucleoner and the collision position of the ice crystal nucleus and water drops is small, and the flying distance of the ice crystal nucleus before collision is reduced.

Further, when the thermal expansion material 9 is contracted to the minimum volume, the inclination angle between the nucleon 2 and the horizontal surface is not more than 45 degrees; when the thermal expansion material 9 expands to the maximum volume, the nucleon 2 is tilted upward by an angle of not less than 5 ° with respect to the horizontal plane.

Further, the thermal expansion material 9 is wrapped with the deformation-free shell 10, the deformation-free shell 10 can restrict the thermal expansion material 9 to displace along the vertical direction all the time, and the height of the deformation-free shell 10 is larger than the maximum expansion height of the thermal expansion material 9.

Further, n takes a value of 3.

Further, the fan 6 is arranged in the air duct 3.

Compared with the prior art, the invention has the following obvious advantages:

1) The invention provides a snow making machine capable of automatically adjusting collision positions, which can sense different environment temperatures and automatically adjust jet angles of a nucleon device to change collision positions of ice crystal nuclei and water drops. When the ambient temperature is higher, the heat exchange rate of water drops is slower, and the time required for freezing ice crystal nuclei is longer, so that the flying distance before collision needs to be increased, and the formation of the ice crystal nuclei is ensured. When the ambient temperature is lower, the freezing time of the ice crystal nuclei is shorter, so that the flying distance before collision can be reduced, longer time is striven for freezing the water drops after collision, and the snow quality is improved. The invention can adapt to snow making under different temperature conditions, automatically regulate and control collision positions, improve the quality of the formed snow, and is automatic and efficient, thereby saving manpower and material resources.

Drawings

Fig. 1 is a schematic view of a snowmaking machine of the present invention automatically adjusting the impact position.

FIG. 2 is a schematic view showing a high-temperature operation of the snowmaking machine of the present invention with the collision position automatically adjusted

FIG. 3 is a schematic view of the cryogenic operation of the snowmaking machine of the present invention with the impact position automatically adjusted.

FIG. 4 is a schematic view of the nozzle, nucleon arrangement of the snow blower of the present invention with the collision position automatically adjusted.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and more concise, the present invention will be described in further detail below with reference to the accompanying drawings and an embodiment. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Examples

As shown in fig. 1, 2, 3 and 4, the system of the present invention for automatically adjusting the collision position of a snowmaker includes a nozzle 1, a nucleon 2, a wind tunnel 3, a water pump 4, an air compressor 5 and a blower 6.

As shown in fig. 4, the nozzles 1 and the nucleon 2 are alternately arranged in the outlet circumference of the air duct 3, the nozzles 1 are arranged in the inner ring, the nucleon 2 is arranged in the outer ring, every n nozzles and 1 nucleon are in a group, and the value of n is recommended to be 3.

As shown in fig. 1, the tail of the nucleon 2 is rotatable about a rotation axis 7, the middle of which is supported by a fixed pivot 8. The pillar below the rotating shaft 7 is made of a thermal expansion material 9, and can expand with heat and contract with cold according to the ambient temperature so as to change the injection angle of the nucleon device 2 and further adjust the collision position of the ice crystal nucleus and water drops. The water pump 4 supplies cold water to the nozzle 1 and the nucleon 2, the air compressor 5 supplies high-pressure air to the nucleon 2, and the fan 6 blows snow into the air.

The thermal expansion material 9 is wrapped by a deformation-free shell 10, the deformation-free shell 10 can restrict the thermal expansion material 9 to displace along the vertical direction all the time, and the height of the deformation-free shell 10 is larger than the maximum expansion height of the thermal expansion material 9.

When the ambient temperature is higher, the included angle between the nucleon device 2 and the horizontal plane is reduced due to the volume expansion of the thermal expansion material 9, the distance between the flying position of the ice crystal nucleus from the nucleon device and the collision position of the ice crystal nucleus and water drops is large, and the flying distance of the ice crystal nucleus before collision is increased; when the ambient temperature is lower, the included angle between the nucleon device 2 and the horizontal plane is increased due to the volume shrinkage of the thermal expansion material 9, the distance between the flying position of the ice crystal nucleus from the nucleon device and the collision position of the ice crystal nucleus and water drops is small, and the flying distance of the ice crystal nucleus before collision is reduced.

Preferably, the nucleon device 2 is at an angle of no more than 45 ° to the horizontal when the thermally expandable material 9 is contracted to a minimum volume; when the thermally expansive material 9 expands to its maximum volume, the nucleon 2 is still tilted upward relative to the horizontal plane by an angle of not less than 5 °.

The snow making machine can sense different environmental temperatures, and automatically adjust the jet angle of the nucleon device to change the collision position of ice crystal nucleus and water drops. When the ambient temperature is higher, the heat exchange rate of water drops is slower, and the time required for freezing ice crystal nuclei is longer, so that the flying distance before collision needs to be increased, and the formation of the ice crystal nuclei is ensured. When the ambient temperature is lower, the freezing time of the ice crystal nuclei is shorter, so that the flying distance before collision can be reduced, longer time is striven for freezing the water drops after collision, and the snow quality is improved. The invention can adapt to snow making under different temperature conditions, automatically regulate and control collision positions, improve the quality of the formed snow, and is automatic and efficient, thereby saving manpower and material resources.

Claims

1. A make snow machine of automatically regulated collision position, its characterized in that: comprises a nozzle (1), a nucleon device (2), an air duct (3), a water pump (4), an air compressor (5) and a fan (6); the nozzles (1) and the nucleon devices (2) are arranged in the outlet circumference of the air duct (3) in a penetrating way, the nozzles (1) are arranged on the inner ring, the nucleon devices (2) are arranged on the outer ring, and every n nozzles and 1 nucleon device are in a group; the tail part of the nucleon device (2) can rotate around a rotating shaft (7), and the middle part of the nucleon device is supported by a fixed fulcrum (8); the support column below the rotating shaft (7) is made of a thermal expansion material (9), so that the spraying angle of the nucleon device (2) can be changed according to thermal expansion and cold contraction of the ambient temperature, and the collision position of ice crystal nuclei and water drops can be regulated, and when the thermal expansion material (9) is contracted to the minimum volume, the nucleon device (2) is still inclined upwards relative to the horizontal plane; the water pump (4) supplies cold water for the nozzle (1) and the nucleon device (2), the air compressor (5) supplies high-pressure air for the nucleon device (2), and the fan (6) blows snow into the air;

when the ambient temperature is high, the volume expansion of the thermal expansion material (9) reduces the included angle between the nucleon device (2) and the horizontal plane, the distance between the flying position of the ice crystal nucleus from the nucleon device and the collision position of the ice crystal nucleus and the water drops is large, and the flying distance of the ice crystal nucleus before collision is increased; when the ambient temperature is low, the thermal expansion material (9) volume shrinkage increases the included angle between the nucleon device (2) and the horizontal plane, the distance between the flying position of the ice crystal nucleus from the nucleon device and the collision position of the ice crystal nucleus and water drops is small, and the flying distance of the ice crystal nucleus before collision is reduced.

2. A snowmaking machine with automatically adjusted impact position according to claim 1, wherein: when the thermal expansion material (9) is contracted to the minimum volume, the upward inclination included angle between the nucleon device (2) and the horizontal plane is not more than 45 degrees; when the thermal expansion material (9) expands to the maximum volume, the nucleon device (2) is inclined upwards by an included angle of not less than 5 degrees relative to the horizontal plane.

3. A snowmaking machine with automatically adjusted impact position according to claim 1, wherein: the thermal expansion material (9) is wrapped with a deformation-free shell (10), the deformation-free shell (10) can restrict the thermal expansion material (9) to generate displacement along the vertical direction all the time, and the height of the deformation-free shell (10) is larger than the maximum expansion height of the thermal expansion material (9).

4. A snowmaking machine with automatically adjusted impact position according to claim 1, wherein: n takes on a value of 3.

5. A snowmaking machine with automatically adjusted impact position according to claim 1, wherein: the fan (6) is arranged in the air duct (3).