CN114623635B

CN114623635B - Snow maker suitable for normal temperature environment

Info

Publication number: CN114623635B
Application number: CN202210329224.1A
Authority: CN
Inventors: 吴海峰; 王瑞祥; 徐荣吉; 张博文; 刘佳维
Original assignee: Beijing University of Civil Engineering and Architecture
Current assignee: Beijing University of Civil Engineering and Architecture
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2023-05-23
Anticipated expiration: 2041-05-17
Also published as: CN114623635A; CN112984884A; CN112984884B

Abstract

The invention discloses a snow making machine suitable for a normal temperature environment, which comprises a cylindrical shell, wherein an axial-flow fan is arranged at the rear end of the shell, a nozzle and a nucleon device which are annularly arranged are arranged at the front end of the shell along the circumferential direction, the water inlet end of the nozzle and the water inlet end of the nucleon device are connected with a high-pressure water system, and the air inlet end of the nucleon device is connected with an air compressor through a gas pipeline; the air cooling system is used for cooling air entering the nucleon. The invention can improve the snow making effect of the snow making machine in a normal temperature environment, and has the advantages of lower energy consumption and higher utilization efficiency of cold energy.

Description

Snow maker suitable for normal temperature environment

The application is a divisional application of patent application No. 202110536243.7, application days 2021-5-17, namely a snow making method of a snow making machine applicable to a normal temperature environment.

Technical Field

The invention relates to the technical field of snow making machine testing equipment, in particular to a snow making machine suitable for a normal temperature environment.

Background

Snow makers are devices for making artificial snow, and are often used in a large number in skiing and skating rinks. The snow making machine is usually used in a low-temperature environment, and the snow making principle is that high-pressure water and high-pressure air are sprayed out through a nucleon device to form small-particle-size snow cores, then the high-pressure water is sprayed out through a nozzle in an atomizing mode and is impacted and combined with the snow cores to form snowflakes, and then the snowflakes are sprayed outwards by means of wind blown by a blower to realize snow making.

In an artificial snow field such as an artificial skiing field or an ice/snow field, it is generally desirable to control the ambient temperature to a negative temperature environment as close to zero degrees celsius as possible in order to reduce the ambient temperature control cost. In this way, snow is often caused to be in a normal temperature environment exceeding zero degrees celsius from time to time due to weather changes or insufficient control accuracy, and the like. Meanwhile, in a natural snow field, the ambient temperature can be higher than zero ℃ due to the fact that the sun is heated up and the like. When the snow making machine is used for making snow, after high-pressure water is sprayed out from the nozzle and the nucleon device, snowflakes can be generated better in a negative temperature environment, and the snow making effect is ensured. So if the development of a snowmaking machine is studied, it is still capable of good snow making capability in a normal temperature environment (mainly in the temperature range of 0-1 ℃) close to zero degrees celsius, which is a problem to be considered in the art.

CN201220534108.5 discloses a snowmaking machine atomising head with annular cooling water pipe, set up the annular cooling water pipe that can utilize the high-speed wind that the blower motor produced to cool down to the water that will spout in this patent scheme, adopt the mode of cooling down to the water that will spout, improve the snow effect. But this patent is more to avoid the adverse effects of too high a water temperature on snow production. The water to be sprayed is cooled too greatly, so that the water is frozen to influence the snow making process, and the snow making effect is always limited.

In addition, there is a technology in the prior art that the temperature of the air flow environment in which the fluid is ejected from the nozzle and the nucleon device is reduced by cooling the blast air flow of the blower, so as to improve the snow making effect. However, this method has low utilization efficiency of cold energy and consumes a large amount of energy for cooling the air flow of the blower.

Therefore, how to design a snow making technology which can improve the snow making capability of a snow making machine in a normal temperature environment, has lower energy consumption and higher utilization efficiency of cold energy is a problem to be considered and solved by the person skilled in the art.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to solve the technical problems that: how to provide a snow making machine snow making method which has lower energy consumption and higher cold energy utilization efficiency and can improve the snow making effect of the snow making machine in a normal temperature environment and is suitable for the normal temperature environment, and a snow making machine suitable for the normal temperature environment.

In order to solve the technical problems, the invention adopts the following technical scheme:

a snow making method for the snow making machine suitable for normal temp environment features that the high-pressure water and high-pressure air are mixed and then sprayed out by nuclear device to form small-particle snow core, which is atomized and sprayed out by nozzle to form snow flake, and the snow flake is sprayed out by the airflow blown by blower.

In this way, in the method, by cooling the high-pressure air, after the high-pressure water and the high-pressure air enter the mixing chamber where the nucleon is positioned and are mixed, the temperature of the mixed fluid is greatly reduced, and as the flow rates of the water and the compressed air are very fast, the mixed fluid can not cause the water component in the mixed fluid to freeze even if the temperature is reduced under the conditions of high pressure and high flow rate, but after the mixed fluid is sprayed out, tiny ice slag can be quickly generated to form snow cores under the state of decompression. This allows for lower temperatures of both the fluid ejected from the nucleon and the snow nuclei created. The temperature of the fluid flow field sprayed by the snow making machine is lower than zero ℃ because the temperature of the fluid is reduced due to the expansion of the pressure release after the fluid is sprayed from the snow making machine. In this way, snow nuclei having a lower temperature due to pre-cooling can be combined with water mist to generate snow more quickly and efficiently in the sub-zero degree celsius flow field environment. The quality and effect of the snow making are greatly improved, so that the snow making machine can have excellent snow making effect and snow making efficiency in a normal temperature environment (usually 0-1 ℃). Meanwhile, the snow core serving as a core in the snowflake forming process is cooled in a targeted manner, so that the snow forming effect is better, and the utilization efficiency of cold energy can be greatly improved; compared with the mode of cooling the air flow of the blower, the snow forming quality is better, the cold energy loss can be reduced, and the utilization efficiency of refrigerating consumption energy is improved.

Further, the heat absorbed by the cooling of the high-pressure air is transmitted to the outlet end position of the snowmaking machine shell for heating.

This is because at the outlet end of the snowmaking machine housing, where the position is extremely low in temperature due to the sudden release expansion of the fluid ejected from the nozzle and the nucleon, water vapor is liable to freeze there, which affects the operation. Therefore, heat absorbed in the high-pressure air cooling process is transferred to the position, the temperature of the outlet end of the shell is increased, and the situation that the nozzle or the outlet of the nucleon is blocked to influence snow can be prevented from being caused by icing at the position. And simultaneously, the full recycling of heat is better realized. The utilization efficiency of the energy consumed by high-pressure air refrigeration is further improved.

Further, the method is realized by means of a snowmaking machine suitable for a normal temperature environment, the snowmaking machine comprises a cylindrical shell, an axial-flow fan is arranged at the rear end of the shell, a nozzle and a nucleon device which are annularly arranged are circumferentially arranged at the front end of the shell, the water inlet end of the nozzle and the water inlet end of the nucleon device are connected with a high-pressure water system, and the air inlet end of the nucleon device is connected with an air compressor through a gas pipeline; an air cooling system is also included for cooling air entering the nucleon.

Thus, the device can realize the snow making method, so that the device is more suitable for being used in a normal temperature environment (mainly 0-1 ℃), and can realize snow making.

Further, the air cooling system comprises an air flow converging chamber, the air flow converging chamber is formed on an air flow channel between the nucleon and the air compressor, a semiconductor refrigerating sheet is arranged on the inner wall of the air flow converging chamber, the cold end of the semiconductor refrigerating sheet is adjacent to the air flow converging chamber, the hot end of the semiconductor refrigerating sheet is adjacent to one end of the heat pipe, and the other end of the heat pipe is connected to the outlet end of the snowmaking machine shell.

Therefore, the semiconductor refrigerating sheet is used for cooling the air, and has the characteristics of quick response, good refrigerating effect and small volume. Meanwhile, the heat of the hot end of the semiconductor refrigerating sheet is transferred to the position of the outlet end of the shell of the snowmaking machine by virtue of the heat pipe to heat the position area, so that the influence on the snowmaking caused by blockage of the nozzle and the outlet of the nucleon due to icing at the position is prevented. Thus, the heat absorbed by the air refrigeration is recycled, and the energy utilization efficiency of the air refrigeration is improved. The structure has the characteristics of no compressor, no mechanical refrigerating link such as a medium pipeline, and the like, relatively simple structure, no noise during working, low requirement on working environment and the like.

Further, the heat pipe is a pulsating heat pipe.

The pulsating heat pipe has small pipe diameter (the inner diameter is generally 0.5-3 mm), which is a serpentine structure formed by bending a metal capillary, one end of the elbow is a heating end, the other end is a cooling end, and a heat insulation section can be arranged in the middle according to the requirement. The interior is vacuumized, and a part of working liquid is filled, so that a liquid column and an air plug with different lengths are formed in the pipe by the working liquid under the action of surface tension. The working fluid is water, methanol, ethanol, freon, etc. Generally, the two structures of an open loop and a closed loop can be divided. Compared with the traditional heat pipe, the pulsating heat pipe has the advantages of simple structure and low cost; the volume is small; the heat flux density can be very high without drying out; and can be bent more randomly; the arrangement can be made easier and the heat transfer efficiency can be improved better for this.

Further, the air cooling system may adopt a structural form including a heating box, the heating box is located on an outer surface of an outlet end of a shell of the snowmaking machine, an air inlet end of the heating box is connected with an air transmission pipeline of the air compressor, an air outlet end of the heating box is connected with an air flow channel connected to the nucleon on the shell, an inner cavity of the heating box forms an air flow converging cavity, semiconductor refrigerating sheets are arranged on inner walls around (up, down, left and right) the heating box in a pasting mode, the inner side of the semiconductor refrigerating sheets is a cold end outer side and a hot end, a plurality of pulsating heat pipes are arranged on the outer side of the semiconductor refrigerating sheets in a winding mode along the circumferential direction of the heating box in a parallel mode along the air flow direction inside the heating box, and form a tube bundle in a mutually pasting mode after converging at the middle position of the outer surface of one side of the heating box, which is close to the outer surface of the snowmaking machine, the tube bundle is wound in a tube bundle mounting groove on the back side of a lip of the outlet end of the shell of the snowmaking machine, and each pulsating heat pipe is made to independently form a circulation.

Therefore, after the air enters the heating box, cooling heat exchange is realized in the heating box by the semiconductor refrigerating sheets around the heating box, and then the air enters the nucleon device in the shell to be mixed with high-pressure water, so that the temperature of snow nuclei is reduced, and the snow making effect is improved. Meanwhile, the heat obtained by heat exchange of the heating box is transferred to the outlet end of the snowmaking machine shell by virtue of the converged tube bundles through a plurality of pulsating heat pipes wound outside the heating box along the circumferential direction, so that the snowmaking machine shell is heated, and icing is prevented. Therefore, the structure not only can cool air to improve the snow making effect, but also can heat the outlet end of the shell by utilizing heat of heat exchange to avoid icing; the device also has the characteristics of relatively simple implementation structure and convenient implementation. The scheme can be conveniently and directly transformed and realized on the existing snow making machine.

Further, the heating box is further provided with a layer of heat insulation material in a wrapping mode outside the pulsating heat pipe, a heat conduction material is further filled between the inside of the heat insulation material and the semiconductor refrigerating sheet, and the part outside the heating box of the pulsating heat pipe winding device is located in the heat conduction material.

Therefore, the heat at the hot end of the semiconductor refrigerating sheet can be more conveniently and fully absorbed by the pulsating heat pipe, and the heat dissipation waste is avoided.

Further, the heat conducting material is heat conducting silica gel, and the heat insulating material is foaming porous material.

This has better heat conduction and insulation effects.

Further, a plurality of cold-conducting aluminum plates arranged along the section direction of the air flow channel are arranged in the heating box at intervals along the length direction, four peripheries of the cold-conducting aluminum plates are fixedly attached to the inner side surface of the semiconductor refrigerating sheet serving as a cold end, air passing areas formed by air passing holes are uniformly distributed on half areas of the cold-conducting aluminum plates, the total size of the air passing holes in the air passing areas of the cold-conducting aluminum plates is consistent with the size of the section of the air transmission pipeline of the air compressor, and the air passing areas of the adjacent cold-conducting aluminum plates are staggered.

Therefore, the structure of the cold-conducting aluminum plate can avoid the influence on the air flow conveying caused by the sudden change of the air passing section of the air conveying pipeline (the air flow area of the air entering the heating box is suddenly increased, and the air flow area of the air flowing out of the heating box is suddenly reduced) due to the fact that the heating box is additionally arranged; secondly, the contact area of the air flow and the heating box for realizing cold-heat exchange is greatly improved; and thirdly, the contact time of the air flow and the heating box for realizing cold-heat exchange is prolonged. Therefore, the heat exchange effect of the heating box can be improved to the greatest extent on the premise of reducing the influence of the arrangement of the heating box on the air flow transportation to the greatest extent, and the cooling effect on the air flow is improved.

Further, the air cooling system may further adopt a structural form including a gas collecting tank arranged on the housing in a closed ring shape, wherein the gas collecting tank is arranged on the housing at a position adjacent to the outlet side of the gas supply tank, a gas collecting tank outlet is arranged on the gas collecting tank and is communicated with the gas supply tank, a gas supply tank outlet corresponding to each nucleon device is respectively arranged on the gas supply tank and is communicated with each nucleon device, a gas collecting tank inlet is arranged on the gas collecting tank and is connected with a gas transmission pipeline of the air compressor, an inner cavity of the gas collecting tank forms the gas flow converging chamber, one side of the gas collecting tank, which is away from the direction of the gas supply tank, is provided with a heating side inner wall surface, a circle of semiconductor refrigerating sheets are adhered to the heating side inner wall surface, and at least one pulsating heat pipe is arranged between the region where the outer side hot end of the semiconductor refrigerating sheet is located and the lip region of the outlet end of the housing in a back-and-forth way and is wholly and circumferentially arranged along the housing.

Therefore, before the air enters the air supply groove, the air enters the air collection groove firstly and is cooled and exchanges heat by the semiconductor refrigerating sheet, and then enters the nucleon device through the air supply groove to reduce the temperature of the snow nuclei and improve the snow making effect. And meanwhile, the heat obtained by the hot end of the outer side surface of the semiconductor refrigerating sheet is directly transferred to the lip area of the outlet end of the shell to heat the area through the pulsating heat pipe which is wound back and forth, so that the icing is prevented. Each zigzag of the pulsating heat pipe can form two heat exchange channels between the area of the outer side surface of the semiconductor refrigerating sheet and the lip area of the outlet end of the shell. Therefore, the structure not only can cool air to improve the snow making effect, but also can heat the outlet end of the shell by utilizing heat of heat exchange to avoid icing; the heat exchange device has the advantages of being small in number of required pulsating heat pipes, very uniform and reliable in heating effect on a heating area, and very efficient and stable in heat exchange efficiency. The scheme is more suitable for design, manufacture and implementation in new products of snowmaking machines. In addition, the air collecting grooves which are parallel to the air supply grooves are independently arranged in the scheme to form the air flow converging chamber for heat exchange, so that the air supply of each nucleon device is not influenced by the air supply grooves in the heat exchange process, and the normal work of the nucleon device is ensured.

Further, the pulsating heat pipe is a plurality of heat pipes which are arranged in parallel along the section direction of the central axis of the shell. In this way, the heat exchange efficiency can be improved.

Further, the inlet and outlet of the gas collecting tank are positioned at two ends of the gas collecting tank in the diameter direction.

Therefore, the whole annular upward air collecting groove can form an air flow channel and realize refrigeration, the refrigeration effect is improved, and the uniformity of refrigeration at all positions in the circumferential direction is ensured. Further, the heat pipes which are arranged in a back-and-forth zigzag manner can be relied on to uniformly exchange heat to the lip positions of the whole circumference of the outlet end of the shell at all circumferential positions of the gas collecting groove, and the uniformity and reliability of the heat supply effect in the circumferential direction are ensured.

Further, the cross section of the gas collecting channel is triangular.

Therefore, the hot end at the outer side of the semiconductor refrigerating sheet is just opposite to the lip area at the outlet end of the shell, so that the pulsating heat pipe can be more conveniently arranged, and the heat transfer is better facilitated.

Further, a layer of heat insulation material is arranged between the hot end outside the semiconductor refrigerating sheet and the lip area of the outlet end of the shell at intervals outside the pulsating heat pipe.

Therefore, the heat dissipation device can shield heat dissipation to other areas caused by heat transfer of the shell medium at the cold and hot middle part of the heat pipe, and can better ensure the heating effect of the heat pipe on the lip part of the outlet end of the shell. The heat insulating material may be made of porous foamed material.

Further, the air collecting grooves are internally provided with cold guide plates made of aluminum materials at intervals, one side of each cold guide plate is attached to the inner side surface of the cold end of each semiconductor refrigeration plate, air passing holes are distributed in the cold guide plates, and the total area of the air passing holes is consistent with the inner section of an air transmission pipeline of the air compressor.

Therefore, the heat transfer area of the cooling guide plate can be increased, the heat transfer between the air and the semiconductor refrigerating plate can be better assisted, and the air cooling effect is improved. Meanwhile, the size of the air passing hole is proper, so that the length of the air collecting tank is prolonged, and the air flow conveying effect is not affected excessively.

Therefore, the scheme has the following characteristics: 1 because the working medium of semiconductor refrigeration (thermoelectric refrigeration) is a carrier conducted in solid materials, the device has no mechanical refrigeration links such as a compressor, a medium pipeline and the like, is relatively simple in structure, has no noise during working, and has low requirements on working environment. 2 no chemical refrigerant and no other harmful matters are released, so that the method has no environmental pollution and is clean and sanitary. 3, the energy regulating performance is good, the refrigerating speed and the refrigerating temperature are regulated by changing the magnitude of working current, and the high-precision temperature control is easy to realize. 4, the thermal inertia of thermoelectric refrigeration is very small, the response time of refrigeration and heating is small, and the rapid heat dissipation is facilitated. And 5, heat exchange is realized by adopting a heat pipe, the structure is simple, small and exquisite and reliable, and the heat exchange is realized by designing specific two structural modes, so that the heat exchange device can be flexibly applied according to the needs.

In conclusion, the invention can improve the snow making effect of the snow making machine in a normal temperature environment, and has the advantages of lower energy consumption and higher utilization efficiency of cold energy.

Drawings

FIG. 1 is a schematic view of a snowmaking machine used in the practice of the present invention.

Fig. 2 is a schematic view of the structure of the individual heating cartridge of fig. 1.

Fig. 3 is a schematic cross-sectional view of fig. 2 in a tube bundle position.

Fig. 4 is a schematic view showing the pulsating heat pipe arrangement of the upper surface of the heating cartridge alone in fig. 2.

Fig. 5 is a schematic view of the arrangement of the inner cold-conducting aluminum plate of fig. 2.

FIG. 6 is a schematic view of a cross-sectional view of an outlet end of a snowmaking machine housing capable of embodying an alternative embodiment of the present invention.

Fig. 7 is a schematic view of the air cooling system shown in fig. 6 shown with the individual housing shown in a lower section.

Fig. 8 is a schematic view of fig. 6 showing the pulsating heat pipe alone in the circumferential direction.

FIG. 9 is a schematic diagram of the pulsating heat pipe of FIG. 6 after flattening, the pulsating heat pipe being shown in line.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The specific embodiment is as follows: a snow making method of a snow making machine suitable for a normal temperature environment is characterized in that high-pressure water and high-pressure air are mixed in the snow making machine and then sprayed out through a nucleon device to form small-particle-size snow cores, then the high-pressure water is sprayed out through atomization from a nozzle and then is impacted and combined with the snow cores to form snowflakes, and the snowflakes are sprayed outwards by means of wind flow blown by a blower to realize snow making.

The heat absorbed by the high-pressure air for cooling is transmitted to the position of the outlet end of the shell of the snowmaking machine for heating.

In the embodiment, the method can be realized by means of a snow maker which is shown in fig. 1-5 and is suitable for a normal temperature environment, the snow maker comprises a cylindrical shell 1, an axial flow fan 2 is arranged at the rear end of the shell 1, a nozzle and a nucleon device which are annularly arranged are circumferentially arranged at the front end of the shell 1, the water inlet end of the nozzle and the water inlet end of the nucleon device are connected with a high-pressure water system (not shown in the figure), and the air inlet end of the nucleon device is connected with an air compressor 4 through a gas pipeline 3; an air cooling system is also included for cooling air entering the nucleon.

The air cooling system comprises an air flow converging chamber, the air flow converging chamber is formed on an air flow channel between the nucleon and the air compressor, a semiconductor refrigerating sheet is arranged on the inner wall of the air flow converging chamber, the cold end of the semiconductor refrigerating sheet is adjacent to the air flow converging chamber, the hot end of the semiconductor refrigerating sheet is adjacent to one end of the heat pipe, and the other end of the heat pipe is connected to the outlet end of the snowmaking machine shell.

Wherein the heat pipe is a pulsating heat pipe.

The air cooling system may adopt the following structural style, see fig. 1-5, including a heating box 5, heating box 5 is located the shell exit end position surface of snowmaking machine, heating box 5 air inlet end links to each other with the gas transmission pipeline 3 of air compressor machine, the air outlet end links to each other with the air current passageway that is connected to the nucleon on the shell 1, heating box 5 inner chamber constitutes the air current gathers the cavity, the heating box 5 is all around (upper and lower left and right) on the inner wall paste be provided with semiconductor refrigeration piece 6, the inside of semiconductor refrigeration piece 6 is the cold junction outside and is the hot junction, the semiconductor refrigeration piece outside is provided with many pulsating heat pipes 7 along heating box circumference winding, each pulsating heat pipe 7 is arranged side by side along the inside air current direction of heating box side and gathers back each other in the middle part position of heating box near snowmaking machine shell one side towards this side surface, the pipe bundle 8 twines in the round tube bundle mounting groove of snowmaking machine shell 1 exit end lip back side and makes each pulsation independently constitute the circulation.

The heating box 5 is further provided with a layer of heat insulation material 9 in a wrapping mode outside the pulsating heat pipe 7, a heat conduction material 10 is further filled between the inside of the heat insulation material 9 and the semiconductor refrigerating sheet, and the part outside the heating box of the pulsating heat pipe winding device is located in the heat conduction material.

The heat conducting material is heat conducting silica gel, and the heat insulating material is foamed porous material.

This has better heat conduction and insulation effects.

The heating box is internally provided with a plurality of cold guide aluminum plates 11 which are arranged along the section direction of the airflow channel at intervals along the length direction, the four circumferences of the cold guide aluminum plates 11 are fixedly attached to the inner side surface of the semiconductor refrigerating sheet serving as a cold end, the air passing areas formed by air passing holes are uniformly distributed on half areas of the cold guide aluminum plates, the total size of the air passing holes in the air passing areas of the cold guide aluminum plates 11 is consistent with the size of the inner section of an air transmission pipeline of the air compressor, and the air passing areas of the adjacent cold guide aluminum plates are arranged in a staggered mode.

As another embodiment, the air cooling system may further adopt a structural form shown in fig. 6-9, and includes an air collecting tank 12 disposed on the housing in a closed ring shape, an air supply tank 13 disposed on the housing and adjacent to the outlet side, an air collecting tank outlet disposed on the air collecting tank 12 and communicating with the air supply tank 13, an air supply tank outlet disposed on the air supply tank 13 and corresponding to each nucleon device, an air collecting tank inlet disposed on the air collecting tank 12 and connected with an air supply pipe of the air compressor, an inner cavity of the air collecting tank 12 forming the air flow converging chamber, a heating side inner wall disposed on a side of the air collecting tank 12 facing away from the air supply tank direction, a ring of semiconductor cooling sheets 6 disposed on the heating side inner wall, and at least one pulsating heat pipe 7 disposed in a back-and-forth zigzag manner and integrally circumferentially around the housing between an area where the outer side of the semiconductor cooling sheets 6 is located and an area of the lip of the outlet end of the housing.

The pulsating heat pipes 7 are arranged in parallel along the section direction of the central axis of the casing. In this way, the heat exchange efficiency can be improved. The number of pulsating heat pipes 7 in this embodiment is 3.

Wherein the inlet and outlet of the gas collecting tank are positioned at two ends of the gas collecting tank 12 in the diameter direction.

Wherein the cross section of the gas collecting channel 12 is triangular.

Wherein, the outside of the pulsating heat pipe 7 is also provided with a layer of heat insulation material 14 between the hot end outside the semiconductor refrigerating sheet and the lip area of the outlet end of the shell.

The air collecting tank is internally provided with cold guide plates 15 made of aluminum materials in an interval arrangement mode, one side of each cold guide plate 15 is attached to the inner side surface of the semiconductor refrigerating plate serving as a cold end, air passing holes are distributed in the cold guide plates 15, and the total area size of the air passing holes is consistent with the size of the inner section of an air transmission pipeline of the air compressor.

Claims

1. The snow making machine suitable for normal temperature environment includes one cylindrical casing with axial flow blower in the back end, annular nozzle and nucleon installed in the front end, water inlet end of the nozzle and water inlet end of the nucleon connected to high pressure water system, and air compressor connected to the air inlet end of the nucleon; the air cooling system is used for cooling the air entering the nucleon device;

2. A snowmaking machine adapted for use in a normal temperature environment as claimed in claim 1 wherein the heat pipe is a pulsating heat pipe.

3. The snow making machine suitable for the normal temperature environment according to claim 2, wherein the air cooling system comprises a heating box, the heating box is positioned on the outer surface of the snow making machine, the air inlet end of the heating box is connected with an air transmission pipeline of the air compressor, the air outlet end of the heating box is connected with an air flow channel connected to the nucleon on the outer surface of the snow making machine, the inner cavity of the heating box forms the air flow converging chamber, the semiconductor refrigerating sheets are arranged on the peripheral wall of the heating box in a pasting mode, the inner side of the semiconductor refrigerating sheets is a cold end and the outer side is a hot end, the outer side of the semiconductor refrigerating sheets is provided with a plurality of pulsating heat pipes in a winding mode along the circumferential direction of the heating box, the pulsating heat pipes are arranged in parallel along the air flow direction inside the heating box and mutually pasted to form a tube bundle after converging at the middle position of the outer surface of the heating box, which is close to the outer surface of the snow making machine, and the tube bundle is wound in a circle of tube bundle mounting grooves on the back of the lip of the outer surface of the snow making machine.

4. A snow maker suitable for use in a normal temperature environment as claimed in claim 3, wherein the heating box is further provided with a layer of heat insulating material, the heat insulating material and the semiconductor refrigerating sheet are filled with heat conducting material, and the part of the pulsating heat pipe winding device outside the heating box is positioned in the heat conducting material.

5. The snowmaking machine for use in a normal temperature environment according to claim 4, wherein the thermally conductive material is a thermally conductive silica gel and the thermally insulating material is a foamed porous material.

6. The snow maker for normal temperature environment according to claim 3, wherein a plurality of cold-conducting aluminum plates are arranged in the heating box at intervals along the length direction along the section direction of the air flow channel, the four circumferences of the cold-conducting aluminum plates are fixedly attached to the inner side surface of the semiconductor refrigerating plate serving as the cold end, the air passing areas formed by air passing holes are uniformly distributed on half of the area of each cold-conducting aluminum plate, the total size of the air passing holes on the air passing areas of each cold-conducting aluminum plate is consistent with the inner section size of the air transmission pipeline of the air compressor, and the air passing areas of adjacent cold-conducting aluminum plates are arranged in a staggered manner.

7. The snow making machine suitable for normal temperature environment as set forth in claim 2, wherein the air cooling system includes one closed annular air collecting tank on the casing, one air supplying tank with air collecting tank outlet communicated to the air supplying tank, one air supplying tank inlet communicated to the nucleon, one air supplying pipeline connected to the air compressor, one heating side inside wall, one semiconductor refrigerating sheet, and one pulsating heat pipe around the casing.

8. The snowmaking machine for use in a normal temperature environment according to claim 7, wherein the pulsating heat pipe is a plurality of heat pipes arranged in parallel along the cross-section direction of the central axis of the casing;

the inlet and the outlet of the gas collecting tank are positioned at two ends of the gas collecting tank in the diameter direction;

the cross section of the gas collecting groove is triangular; and a layer of heat insulation material is arranged between the hot end outside the semiconductor refrigerating sheet and the lip area of the outlet end of the shell at intervals outside the pulsating heat pipe.

9. The snow maker for normal temperature environment according to claim 8, wherein the air collecting grooves are provided with cold guide plates made of aluminum material at intervals, one side of the cold guide plates is adhered to the inner side surface of the cold end of the semiconductor refrigerating plate, and air passing holes are distributed on the cold guide plates, and the total area of the air passing holes is consistent with the inner section of the air transmission pipeline of the air compressor.