CN115218572A - Nozzle for snow making machine for adjusting hydraulic balance and control method - Google Patents
Nozzle for snow making machine for adjusting hydraulic balance and control method Download PDFInfo
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- CN115218572A CN115218572A CN202210885905.6A CN202210885905A CN115218572A CN 115218572 A CN115218572 A CN 115218572A CN 202210885905 A CN202210885905 A CN 202210885905A CN 115218572 A CN115218572 A CN 115218572A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2600/00—Control issues
- F25C2600/04—Control means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a nozzle for a snow maker for adjusting hydraulic balance and a control method. When the pressure of the outlet of the nozzle above the snow making machine is insufficient and the flow is reduced, the high-area nozzle can be adjusted to be in a small-resistance mode, and the low-area nozzle can be adjusted to be in a large-resistance mode, so that the pressure and the flow of the upper and lower water paths are balanced, the nonuniformity of the flow and the speed is avoided, the atomization effect is ensured, and the snow forming quality is improved; meanwhile, the unnecessary pressurization of the water pump can be reduced by balancing the resistance, the water pump is protected, and the energy is saved. The invention can ensure the atomization effect, improve the quality of the formed snow, reduce the unnecessary pressurization of the water pump, protect the water pump, save energy and prolong the service life of equipment.
Description
Technical Field
The invention belongs to the technical field of snow makers, and particularly relates to a nozzle for a snow maker and a control method for the nozzle, wherein the nozzle is used for adjusting hydraulic balance.
Technical Field
The snow maker, as an artificial snow making device for providing stable snow resources, has been one of the indispensable equipments for guaranteeing the operation of the ski field in winter. At present, the most widely used internal mixing type snowmaker adopts a nucleus device and a swirl flow nozzle as a core atomizing component, and high-pressure water is sprayed and atomized through the nozzle to form fine water drops, and then is subjected to catalytic freezing after colliding with ice crystal nuclei provided by the nucleus device to form snowflakes. Traditional snow making machine is because of the nozzle vertical distribution on the dryer circumference, and at the in-process that the high pressure water was carried to the nozzle by the below water pump, more on-way resistance loss and local resistance loss need be overcome to high district nozzle pipeline play water for the pressure head of high district pipeline reduces, and the flow of pipe diameter regular high district pipeline reduces, and the water yield and the exit velocity of high district nozzle reduce. The reduction of the outlet speed increases the particle size of atomized liquid drops, the atomization effect is uneven, and the quality of snowing is seriously influenced. Therefore, the snow making machine needs to be structurally optimized in order to further improve the snow forming effect and the system performance of the snow making machine, so that the problem that the water quantity and the speed distribution of outlets at different heights of the snow making machine are not uniform is solved, and the snow forming quality and the unit efficiency are further ensured.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide a nozzle for a snow-making machine and a control method thereof, wherein the nozzle for the snow-making machine can change the sectional area of the inlet of the nozzle by adjusting the position of an inlet piston through a rotating structure, effectively adjust the flow resistance of the outlet and improve the hydraulic balance degree among the nozzles of the snow-making machine. When the pressure of the outlet of the high-area nozzle of the snow making machine is insufficient and the flow is reduced, the high-area nozzle can be adjusted to be in a small-resistance mode, and the low-area nozzle can be adjusted to be in a large-resistance mode, so that the pressure and the flow of a water path above and below the snow making machine are balanced, the flow and the speed are prevented from being uneven, the atomization effect is ensured, and the snow quality is improved; meanwhile, the unnecessary pressurization of the water pump can be reduced by balancing the resistance, the water pump is protected, and the energy is saved. The invention can ensure the atomization effect, improve the quality of the formed snow, reduce the unnecessary pressurization of the water pump, protect the water pump, save energy and prolong the service life of equipment.
In order to achieve the purpose, the invention adopts the following technical scheme:
a nozzle for a snow making machine for adjusting hydraulic balance comprises a fixed inlet 2 and a rotating structure 1 connected to the upper part of the fixed inlet 2; the rotating structure 1 comprises a shell 3, an inner core 4, an inlet piston 5, a cyclone groove 6, a cyclone cavity 7 and an outlet 8; the inner core 4 is positioned in the shell 3 and fixedly connected with the shell 3, and a rotational groove 6 is formed between the surface of the inner core 4 and the shell 3 for water to pass through; the outlet 8 is arranged at the top of the shell 3, a hollow cavity formed between the shell 3 and the inner core 4 in the direction close to the outlet 8 is a rotational flow cavity 7, and water flows in the rotational flow cavity 7 in a rotating mode; the inlet piston 5 is a protruding structure of an inner core 4 close to a fixed inlet and is used for controlling the flow cross section area of the fixed inlet, the cross section of the inlet piston is elliptical, the length of a long axis is a, the length of a short axis is b, and a is larger than b; an inlet section 10 is formed between the inlet piston 5 and the shell 3 for water to pass through, and the inlet section 10 is the flow cross section of the fixed inlet; along with the rotation of the rotating structure 1, the flow area of the inlet section 10 is changed, water flow is blocked to different degrees, the local resistance of the nozzle is changed, and the hydraulic balance effect is realized; when the spray nozzle operates, water flow enters the spray nozzle through the fixed inlet 2, flows through the inlet section 10, enters the swirl groove 6 to obtain rotational acceleration, and then is ejected out of the outlet 8 in a swirl way after rotating and flowing in the swirl cavity 7 to form hollow conical spray; the nozzle has two resistance modes of large resistance and small resistance, when the rotating structure 1 is rotated to enable the short axis of the inlet piston 5 with the elliptic section to reach the position of the inlet section 10, the blocked area of the inlet section 10 is small, the flow area is the largest, and at the moment, the nozzle is in the low resistance mode, and the flow resistance is the smallest; when the rotary structure 1 is rotated to enable the long axis of the inlet piston 5 with the elliptic section to reach the position of the inlet section 10, the blocked area of the inlet section 10 is large, the flow area is minimum, and at the moment, the large resistance mode is adopted, and the flow resistance is maximum.
Further, the rotating structure 1 and the fixed inlet 2 are rotated by means of a slide 9.
The nozzle is arranged in the outlet circumference of a wind barrel of the snow making machine and is divided into three groups, namely a high area, a middle area and a low area according to the height of the arrangement position; when the pressure of the outlet of the high-area nozzle of the snow making machine is insufficient and the flow is reduced, the low-area nozzle is rotated towards the direction of the high-resistance mode while the low-area nozzle is kept unchanged; if high district nozzle outlet flow is still not enough, then will center the district nozzle and rotate to little resistance mode direction, until the flow is sufficient even, balanced upper and lower water route pressure and flow, avoid flow and velocity inhomogeneity, guarantee atomization effect, improve into snow quality.
Compared with the prior art, the invention has the following obvious advantages:
1) The invention provides a nozzle for a snow making machine for adjusting hydraulic balance and a control method, wherein the nozzle for the snow making machine can adjust the flow resistance of an outlet through a rotating structure, balance the pressure and the flow of upper and lower water paths, avoid the nonuniformity of the flow and the speed, ensure the atomization effect and improve the snow forming quality;
2) The nozzle for the snowmaker for adjusting hydraulic balance, which is provided by the invention, can effectively avoid unnecessary pressurization of the water pump, protect the water pump, prolong the service life of equipment and save energy at the same time.
Drawings
FIG. 1a is a schematic view of the external structure of the nozzle for a snowmaking machine for adjusting hydraulic balance according to the present invention; fig. 1b is a schematic view of the internal structure of the nozzle for a snow making machine for adjusting hydraulic balance according to the present invention.
FIG. 2a is a low drag pattern top view of a snowmaker nozzle of the present invention adjusting hydraulic balance; FIG. 2b isbase:Sub>A sectional view of the low drag mode A-A of the nozzle forbase:Sub>A snowmaking machine for adjusting hydraulic balance of the present invention; fig. 2c is a sectional view of the nozzle for a snowmaking machine according to the present invention, showing a small resistance pattern B-B.
FIG. 3a is a top plan view of a high drag pattern of the present hydrobalancing snowmaking machine nozzle; FIG. 3b isbase:Sub>A cross-sectional view of the high drag mode A-A of the present invention nozzle forbase:Sub>A snowmaking machine with hydraulic balance adjustment; FIG. 3c is a B-B cross-sectional view of a high drag mode of the nozzle for a snow making machine according to the present invention for adjusting hydraulic balance.
FIG. 4 is a sectional schematic view of the nozzles for the snowmaking machine for adjusting hydraulic balance arranged in the outlet circumference of the wind barrel of the snowmaking machine.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear and concise, the present invention will be described in further detail with reference to the accompanying drawings and an embodiment. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
As shown in fig. 1a and fig. 1b, the nozzle for a snowmaking machine for adjusting hydraulic balance and the control method thereof are provided, wherein the nozzle is composed of a rotating structure 1 and a fixed inlet 2.
The rotating structure 1 comprises an outer shell 3, an inner core 4, an inlet piston 5, a swirl groove 6, a swirl chamber 7 and an outlet 8. The inner core 4 is positioned inside the shell 3 and is fixedly connected with the shell 3, and a rotational flow groove 6 is formed between the surface of the inner core 4 and the shell 3 and is used for water flow to pass through. The outlet 8 is arranged at the top of the outer shell 3, a hollow cavity formed between the outer shell 3 and the inner core 4 in the direction close to the outlet 8 is a rotational flow cavity 7, and water flow can rotate and flow in the rotational flow cavity 7. The inlet piston 5 is a protruding structure of the inner core 4 close to the fixed inlet, is used for controlling the flow cross section area of the inlet of the nozzle, and has an oval cross section, the length of the long axis is a, the length of the short axis is b, and a is larger than b. An inlet section 10 is formed between the inlet piston 5 and the shell 3 for water to pass through, and the inlet section 10 is a flow cross-sectional area of a fixed inlet. The rotating structure 1 and the fixed inlet 2 are rotated by means of a slide 9. Along with the rotation of the rotating structure 1, the flow area of the inlet section 10 is changed, water flow can be blocked to different degrees, the local resistance of the nozzle is changed, and the hydraulic balance effect is realized. When the spray nozzle operates, water flow enters the spray nozzle through the fixed inlet 2, flows through the inlet section 10, enters the swirl groove 6 to obtain rotational acceleration, and then swirls and emits from the outlet 8 after swirling and flowing in the swirl cavity 7 to form hollow conical spray. The nozzle has two resistance modes of large resistance and small resistance, as shown in fig. 2a, 2b and 2c, when the rotating structure 1 is rotated to enable the short axis of the inlet piston 5 with the elliptic section to reach the position of the inlet section 10, the blocked area of the inlet section 10 is small, the flow area is maximum, and the flow resistance is minimum in the small resistance mode; as shown in fig. 3a, 3b and 3c, when the rotary structure 1 is rotated such that the inlet piston 5 with an elliptical cross-section has a long axis to the position of the inlet cross-section 10, the blocked area of the inlet cross-section 10 is large, the flow area is minimum, and in this case, the flow resistance is maximum in the high resistance mode.
The control method comprises the following steps:
as shown in fig. 4, the nozzles are arranged in the outlet circumference of the wind barrel of the snowmaking machine, and the nozzles can be divided into three groups, namely a high zone, a middle zone and a low zone according to the height of the arrangement position. When the pressure of the outlet of the high-area nozzle of the snow maker is insufficient and the flow is reduced, the low-area nozzle can be kept in the low-resistance mode and rotated towards the direction of the high-resistance mode; if the outlet flow of the nozzle in the high area is still insufficient, the nozzle in the middle area rotates towards the direction of the small resistance mode until the flow is sufficient and uniform.
Claims (3)
1. The utility model provides an adjust hydraulic balance's nozzle for snowmaker which characterized in that: comprises a fixed inlet (2) and a rotating structure (1) connected to the upper part of the fixed inlet (2); the rotating structure (1) comprises a shell (3), an inner core (4), an inlet piston (5), a swirl groove (6), a swirl cavity (7) and an outlet (8); the inner core (4) is positioned in the shell (3) and fixedly connected with the shell (3), and a rotary groove (6) is formed between the surface of the inner core (4) and the shell (3) for water to pass through; the outlet (8) is arranged at the top of the shell (3), a hollow cavity formed between the shell (3) and the inner core (4) in the direction close to the outlet (8) is a rotational flow cavity (7), and water flows in the rotational flow cavity (7) in a rotating manner; the inlet piston (5) is a protruding structure of an inner core (4) close to the fixed inlet and used for controlling the flow cross section area of the fixed inlet, the cross section of the inlet is oval, the length of a long axis is a, the length of a short axis is b, and a is larger than b; an inlet section (10) is formed between the inlet piston (5) and the shell (3) for water to pass through, and the inlet section (10) is the flow section area of the fixed inlet; along with the rotation of the rotating structure (1), the flow area of the inlet section (10) is changed, water flow is blocked to different degrees, the local resistance of the nozzle is changed, and the hydraulic balance effect is realized; when the spray nozzle runs, water flow enters the spray nozzle through the fixed inlet (2), flows through the inlet section (10) and enters the swirl groove (6) to obtain rotational acceleration, and then is ejected out of the outlet (8) in a swirl way after rotating and flowing in the swirl cavity (7) to form hollow conical spray; the nozzle has two resistance modes of large resistance and small resistance, when the rotating structure (1) is rotated to enable the short axis of the inlet piston (5) with the elliptic section to reach the position of the inlet section (10), the blocked area of the inlet section (10) is small, the flow area is the largest, and at the moment, the small resistance mode is adopted, and the flow resistance is the smallest; when the rotating structure (1) is rotated to enable the long axis of the inlet piston (5) with the oval cross section to reach the position of the inlet cross section (10), the blocked area of the inlet cross section (10) is large, the flow area is minimum, and at the moment, the flow resistance mode is in a large resistance mode, and the flow resistance is maximum.
2. The nozzle for a snowmaking machine for adjusting hydraulic balance as claimed in claim 1, wherein: the rotating structure (1) and the fixed inlet (2) rotate through a slide way (9).
3. The method for controlling a nozzle for a snowmaking machine capable of adjusting hydraulic balance as claimed in claim 1 or 2, wherein: the nozzles are distributed in the outlet circumference of the wind barrel of the snow making machine and are divided into three groups, namely a high region, a middle region and a low region according to the height of the distribution position; when the pressure of the outlet of the high-area nozzle of the snow making machine is insufficient and the flow is reduced, the low-area nozzle is rotated towards the direction of the high-resistance mode while the low-area nozzle is kept unchanged; if high district nozzle outlet flow is still not enough, then rotate the centre district nozzle to little resistance mode direction, until the flow is sufficient even, balanced upper and lower water route pressure and flow, avoid flow and velocity inhomogeneity, guarantee atomization effect, improve into snow quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210885905.6A CN115218572B (en) | 2022-07-26 | 2022-07-26 | Nozzle for snowmaking machine for adjusting hydraulic balance and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210885905.6A CN115218572B (en) | 2022-07-26 | 2022-07-26 | Nozzle for snowmaking machine for adjusting hydraulic balance and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115218572A true CN115218572A (en) | 2022-10-21 |
| CN115218572B CN115218572B (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210885905.6A Active CN115218572B (en) | 2022-07-26 | 2022-07-26 | Nozzle for snowmaking machine for adjusting hydraulic balance and control method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2015259A1 (en) * | 1990-04-24 | 1991-10-24 | Louis Handfield | Snow making machine |
| CN202860734U (en) * | 2012-10-29 | 2013-04-10 | 宜兴台玉环境工程设备有限公司 | High-density flow nozzle |
| US20130341423A1 (en) * | 2012-01-13 | 2013-12-26 | Supersnow Spolka Z O.O. Spolka Komandytow A | Nozzle for spraying liquid, especially water in a snow production cannon |
| CN105709953A (en) * | 2016-01-29 | 2016-06-29 | 芜湖市海联机械设备有限公司 | Flow-adjustable nozzle |
| CN106733318A (en) * | 2015-11-19 | 2017-05-31 | 北京中联佳华科技有限公司 | A kind of modular snowmaker end atomising head |
| CN114111144A (en) * | 2021-10-26 | 2022-03-01 | 北京建筑大学 | Large-snow-volume snow making machine adaptive to climatic conditions and nozzle control method thereof |
-
2022
- 2022-07-26 CN CN202210885905.6A patent/CN115218572B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2015259A1 (en) * | 1990-04-24 | 1991-10-24 | Louis Handfield | Snow making machine |
| US20130341423A1 (en) * | 2012-01-13 | 2013-12-26 | Supersnow Spolka Z O.O. Spolka Komandytow A | Nozzle for spraying liquid, especially water in a snow production cannon |
| CN202860734U (en) * | 2012-10-29 | 2013-04-10 | 宜兴台玉环境工程设备有限公司 | High-density flow nozzle |
| CN106733318A (en) * | 2015-11-19 | 2017-05-31 | 北京中联佳华科技有限公司 | A kind of modular snowmaker end atomising head |
| CN105709953A (en) * | 2016-01-29 | 2016-06-29 | 芜湖市海联机械设备有限公司 | Flow-adjustable nozzle |
| CN114111144A (en) * | 2021-10-26 | 2022-03-01 | 北京建筑大学 | Large-snow-volume snow making machine adaptive to climatic conditions and nozzle control method thereof |
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| Publication number | Publication date |
|---|---|
| CN115218572B (en) | 2023-06-02 |
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