Anti-frost device for orchard

Abstract

The invention discloses an anti-frost device for an orchard, and relates to the technical field of agriculture, the anti-frost device provided by the scheme has two operation modes, the modes can be rapidly switched, and the wide adaptability in the anti-frost process of the orchard is ensured through a long-term endurance mode and a high-heat heating mode. And by adopting the design of automatically adjusting the air inflow and uniformly throwing water, not only is continuous smoke output without manual supervision realized, but also excessive combustion of fuel is effectively inhibited, and efficient utilization and safe operation of the fuel are ensured. Meanwhile, by means of the steam-driven heat directional spraying technology, the fruit trees and the ground are evenly covered with heat, the heating efficiency is improved, and the influence of smoke on the fruit trees is reduced. The device can use various biomass fuels, the operation cost is greatly reduced, electric power support is not needed, the device is particularly suitable for large orchards in remote areas, and the low-cost, efficient and environment-friendly anti-frost effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of agriculture, and in particular relates to an anti-frost device for an orchard. Background Art

[0002] The most commonly used anti-frost technology in current production is whitewashing the tree trunks, which slows down the temperature rise of the tree, reduces frost damage, delays flowering, and effectively avoids late frost and low temperature frost damage, while also treating tree trunk diseases and insect pests.

[0003] The second is to irrigate before freezing. Watering under the trees and spraying water on the trees will increase the heat capacity and thermal conductivity of the soil, delay the flowering period, slow the temperature rise during the day, and reduce the temperature at night. The air close to the ground will not be extremely cold or hot, which will have a strong regulatory effect on temperature changes. Generally, watering 2-3 times after the soil thaws and before flowering can delay the flowering period by 2-3 days.

[0004] The third is fumigation to prevent frost. Based on the experience of fruit trees being frozen over the years, pay attention to the weather forecast during the flowering period of fruit trees and use crop straw, sawdust, cow dung, etc. or smoke agents for fumigation. Generally, 4-5 fires are set per acre in the orchard.

[0005] Fourth, spray antifreeze. Drones are used to spray antifreeze on concentrated fruit trees in the county, and antifreeze is distributed to scattered red plum apricot and apple growers, who are guided to defend themselves. At the same time, micro-fertilizers are sprayed to enhance the resistance of the trees and improve their ability to resist freezing.

[0006] The fifth is heating to prevent frost. Fire walls, fire trenches, flues, etc. are set up to heat the orchard air to resist the rapid drop in temperature.

[0007] Sixth, release bees for pollination during the flowering period and artificial pollination. Generally, orchards with bee areas can reduce the freezing rate by more than 40%; artificial pollination has the same effect.

[0008] However, these methods have certain limitations. In the existing practice of orchard frost prevention, several commonly used technical methods have their own application scope and effectiveness limitations. The method of whitewashing the trunk reduces frost damage by delaying the temperature rise of the tree. Although it is easy to operate, it can only effectively alleviate temperature changes and has limited protection against sudden late frost. Watering before freezing can regulate the temperature changes of the soil and air, but it depends on irrigation conditions and is less applicable to orchards in mountainous areas or with insufficient water sources. In addition, the timing of irrigation is strict and difficult to control. Fumigation to prevent frost is a more common method. It uses the burning of straw or smoke agents to produce smoke to reduce the impact of sudden temperature drops on fruit trees. However, traditional fumigation methods consume a lot of fuel, and it is difficult to accurately control the amount of smoke and the burning time. It often produces open flames, posing a threat to the safety of the orchard. In addition, harmful substances in smoke may have a negative impact on fruit trees, and fumigation piles need to be arranged at multiple points, increasing labor and management costs. Although spraying antifreeze and heating to prevent frost can enhance the tree's resistance to a certain extent or provide an immediate heating effect, these methods need to rely on certain technical equipment or external conditions. Especially in remote areas, the supply of antifreeze and the installation of heating equipment are difficult to promote and the effect is limited. Bee pollination during the flowering period and artificial pollination mainly focus on reducing the impact of freezing on crop fruiting, and cannot effectively prevent the damage of frost itself. Among them, the fire heating method not only consumes a lot of fuel, but also has the risk of fire caused by improper control of the fire source. Because the flame is mainly heated by thermal radiation, the heat mainly diffuses upward, resulting in poor heating effect on the bottom fruit trees, and multiple fire points need to be set up, which increases the difficulty of management. In addition, the smoke produced by direct combustion may have adverse effects on fruit trees and the environment, especially the high smoke content of traditional fuels, which can easily damage the leaves of fruit trees and affect the growth of crops.

[0009] In order to solve the above problems, some anti-frost equipment began to use biomass fuel to replace traditional fuel. However, although biomass fuel has a lower cost, it is easy to burn directly to produce open flames, the amount of smoke is insufficient, and the anti-frost effect is limited. At the same time, biomass fuel is prone to produce local excessively high temperatures during the combustion process, and it is impossible to release smoke stably for a long time, resulting in poor endurance and unable to meet the anti-frost needs of large-scale orchards. Therefore, the prior art urgently needs an anti-frost device that can use low-cost fuel, effectively control the combustion process and produce a large amount of smoke, and has long-term endurance to improve the anti-frost effect of orchards.

[0010] In view of this, the present invention is proposed. Summary of the invention

[0011] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0012] A frost protection device for an orchard, comprising a furnace;

[0013] The lower surface of the furnace is fixedly connected with a base, and the upper surface of the inner wall of the furnace is penetrated and fixed with a sealing tank;

[0014] The combustion adjustment assembly is installed on the inner wall of the furnace and is used to control the air intake and combustion amount;

[0015] The active control component is installed through the inner wall of the combustion control component and is used to control the opening amount of the combustion control component and the sealing tank;

[0016] The shutter is connected to the active control component and is used to manually switch the overall operation anti-frost mode;

[0017] The bottom seal penetrates and is fixed to the bottom of the sealed can, and the bottom seal plug fits and slides above the inner wall of the bottom seal, and the lower surface of the bottom seal plug is fixedly connected to the top of the active regulating component;

[0018] The guide assembly is connected to the furnace and the sealing tank respectively, and is used for directional discharge of steam and flue gas;

[0019] Several smoke dispersing holes are evenly arranged on the side wall of the furnace to evenly distribute the smoke in the furnace;

[0020] A diverter ring is arranged below the bottom seal, and the inner wall of the diverter ring is fixedly connected to the surface of the active regulating component.

[0021] Preferably, a support frame is fixedly connected to the inner wall of the base, a column is fixedly passed through the surface of the support frame, and the top end of the column is installed at the bottom end of the active control component.

[0022] Preferably, the guide assembly includes a multi-way chimney which is connected to the four corners of the upper surface of the furnace, the top of which is rotatably connected to a drainage pipe, and also includes a steam base pipe fixedly connected to the upper surface of the sealing tank, a constant pressure valve is installed at the bottom end of the steam base pipe, the top of the steam base pipe is rotatably connected to a pressure pipe, and the top of the pressure pipe is fixedly connected to the inner wall of the drainage pipe.

[0023] Preferably, the active control component comprises an air bag fixedly connected to the top of the column, the upper surface of the air bag is connected to a cylinder, the inner wall of the cylinder is movably connected to an airtight piston, the upper surface of the airtight piston is fixedly connected to a spline shaft, and the spline shaft slide is matched with the top of the cylinder;

[0024] The surface of the spline shaft is fixedly connected with a fixed plate, and the surface of the fixed plate is symmetrically provided with two sliding balls;

[0025] The surface of the air bag is provided with a protective sleeve, the inner wall of the protective sleeve is fixedly connected with a guide sleeve, and the inner wall of the guide sleeve is symmetrically provided with two arc grooves for matching the sliding ball;

[0026] The bottom end of the casing is fixedly connected to the surface of the combustion adjustment assembly;

[0027] The diverter ring and the bottom seal are both fixedly connected to the surface of the spline shaft. The diverter ring comprises a ring body, and a dispersing surface and a gathering surface arranged on the upper surface of the ring body.

[0028] Preferably, a furnace door for adding fuel is provided on one side of the furnace, and a cleaning port is provided on one side of the base.

[0029] Preferably, the combustion adjustment assembly comprises a fuel rack fixedly connected to the inner wall of the furnace, a wind disc is slidably fitted on the lower surface of the fuel rack, and a plurality of wind holes are provided on the surfaces of the wind disc and the fuel rack;

[0030] The inner wall of the wind disc is fixedly connected with a slip ring, the slip ring penetrates and slides on the inner wall of the fuel rack, and the slip ring is fixedly connected to the bottom end of the casing;

[0031] The inner wall of the wind disc is fixedly connected with a bearing, the bearing is rotatably arranged on the surface of the column, and the bottom end of the protective tube is fixedly connected to the surface of the bearing.

[0032] Preferably, a water supply valve is installed on the upper surface of the sealed tank, and a one-way air inlet valve connected to the sealed tank is also provided on one side of the water supply valve.

[0033] Preferably, the shutter comprises a sealing chamber fixedly connected to one side of the base, a pressure reducing piston is slidably provided on the inner wall of the sealing chamber, a tension spring is fixedly connected to one side of the pressure reducing piston, a rotating spring seat is installed at the other end of the tension spring, a threaded rod is rotatably provided on one side of the rotating spring seat, and the threaded rod is threadedly penetrated through one side of the sealing chamber;

[0034] The inner wall of the sealed chamber is connected with a connecting pipe, and the other end of the connecting pipe is connected with the air bag.

[0035] Preferably, the pressure tube is arranged axially of the drainage tube, and the end of the drainage tube is arranged in a trumpet-shaped opening.

[0036] Preferably, fins are evenly distributed on the surface of the air bag, and the fins are fitted on the inner wall of the casing.

[0037] Beneficial effects:

[0038] The anti-frost device proposed in this scheme has two operating modes, one is the long-term endurance mode, and the other is the high-calorie heating mode. The modes can be quickly switched. By providing two operating modes, namely the long-term endurance mode and the high-calorie heating mode, it ensures a wider adaptability in the orchard anti-frost process. The design of automatically adjusting the air intake and uniform water spraying not only realizes continuous smoke output without manual supervision, but also effectively suppresses excessive combustion of fuel, ensuring efficient use of fuel and safe operation. At the same time, the steam-driven heat directional injection technology is used to make the heat evenly cover the fruit trees and the ground, improve the heating efficiency and reduce the impact of smoke on the fruit trees. The device can use a variety of biomass fuels, greatly reducing the operating cost, and does not require electricity support. It is particularly suitable for large orchards in remote areas, achieving low-cost, high-efficiency and environmentally friendly anti-frost effects.

[0039] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In the attached picture:

[0041] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0042] Figure 2 It is a three-dimensional structural schematic diagram of the present invention from another viewing angle;

[0043] Figure 3 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention;

[0044] Figure 4 It is a structural schematic diagram of the cross section of the present invention;

[0045] Figure 5 It is a schematic diagram of the cross-sectional structure of the present invention when viewed from above;

[0046] Figure 6 It is a schematic diagram of a three-dimensional cross-sectional structure of a guide assembly of the present invention;

[0047] Figure 7 It is a schematic diagram of the three-dimensional cross-sectional structure of the combustion adjustment assembly of the present invention;

[0048] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the active control component of the present invention;

[0049] Fig. 9 It is a schematic diagram of the three-dimensional cross-sectional structure of the shutter of the present invention;

[0050] Fig.10 It is a structural schematic diagram of the cross section of the diverter ring of the present invention;

[0051] Fig.11This is a schematic diagram of the state in which the two air holes of the combustion adjustment assembly of the present invention present a small gap A and are fully connected B.

[0052] In the figure: 1, furnace; 2, base; 3, combustion adjustment component; 31, fuel rack; 32, wind disc; 33, wind hole; 34, slip ring; 35, bearing; 4, active control component; 41, air bag; 42, cylinder; 43, airtight piston; 44, spline shaft; 45, fixed plate; 46, sliding ball; 47, arc groove; 48, casing; 49, guide sleeve; 5, diverter ring; 51, ring body; 52, dispersion surface; 53, gathering surface; 6, opener and closeer; 6 1. Sealing chamber; 62. Pressure reducing piston; 63. Tension spring; 64. Rotating spring seat; 65. Threaded rod; 7. Guide assembly; 71. Multi-way chimney; 72. Drainage pipe; 73. Steam base pipe; 74. Pressure pipe; 75. Constant pressure valve; 8. Sealing tank; 9. Connecting pipe; 10. Bottom seal; 11. Bottom plug; 12. Furnace door; 13. Cleaning port; 14. Smoke dispersing hole; 15. Fin; 16. Column; 17. Support frame; 18. Water supply valve. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0054] like Figures 1 to 11 As shown, a frost protection device for an orchard comprises a furnace 1;

[0055] The lower surface of the furnace 1 is fixedly connected with a base 2, and the upper surface of the inner wall of the furnace 1 is penetrated and fixed with a sealing tank 8;

[0056] The combustion adjustment component 3 is installed on the inner wall of the furnace 1 and is used to control the air intake and combustion amount;

[0057] The active control component 4 is installed through the inner wall of the combustion control component 3 to control the opening amount of the combustion control component 3 and the sealing tank 8;

[0058] The shutter 6 is connected to the active control component 4 and is used to manually switch the overall operation anti-frost mode;

[0059] The bottom seal 10 is fixed through the bottom of the sealed can 8, and the bottom seal 11 is fitted and slid above the inner wall of the bottom seal 10, and the lower surface of the bottom seal 11 is fixedly connected to the top of the active regulating component 4;

[0060] The guide assembly 7 is connected to the furnace 1 and the sealing tank 8 respectively, and is used for directional discharge of steam and flue gas;

[0061] A plurality of smoke dispersing holes 14 are evenly arranged on the side wall of the furnace 1 to evenly distribute the smoke in the furnace 1;

[0062] A diverter ring 5 is disposed below the bottom seal 10 , and the inner wall of the diverter ring 5 is fixedly connected to the surface of the active regulating component 4 .

[0063] This solution has many significant advantages in practical application, especially in meeting the needs of frost protection in large orchards. Compared with the existing technology, it has achieved outstanding results in many aspects.

[0064] First of all, this solution can utilize a variety of biomass fuels, such as firewood, straw, etc., which makes the fuel source abundant and low-cost, especially for remote areas, where local materials can be used, significantly reducing production costs. Compared with traditional smoke sprays or fumigation methods that require a lot of fuel, the economic burden is greatly reduced. In addition, the solution has the function of automatically adjusting the air intake and water spraying, ensuring the stability of the combustion process and the long-term durability of the smoke. Traditional fumigation methods require frequent manual intervention, but this solution does not require manual supervision and can run continuously for a long time, ensuring that the anti-frost effect of the orchard is more lasting and saves time and effort.

[0065] Secondly, the device automatically controls the state of combustion, avoiding the common open flame problem in traditional methods, thereby improving the safety of the orchard. In particular, it automatically replenishes fuel when smoke is insufficient, and sprays water to cool down when the temperature is too high, preventing excessive combustion from generating open flames, which not only protects the orchard environment, but also reduces fire hazards.

[0066] Furthermore, this solution has a dual mode, which can achieve long-term fumigation for low-temperature frost prevention and efficient heating in a short time. Unlike the traditional fire heating method, this solution uses steam to promote the uniform diffusion of smoke and heat, and sprays heat to low places to ensure that the orchard ground and fruit trees are evenly heated, expand the anti-frost coverage, reduce the need for multiple fires, and further improve operation efficiency and safety.

[0067] For the use in this field, the adaptive adjustment and automation functions of this solution have great promotion potential in large-scale orchards or remote areas. It solves the problems of high cost, heavy burden of manual management, and short-term protection effect in traditional technology. It not only provides a more effective anti-frost solution for orchards, but also promotes the application of low-cost and high-efficiency anti-frost equipment in agricultural production, which is expected to have a wide impact in this field.

[0068] Specifically, Figure 3 As shown: a support frame 17 is fixedly connected to the inner wall of the base 2, a column 16 is fixedly passed through the surface of the support frame 17, and the top end of the column 16 is installed at the bottom end of the active control component 4.

[0069] By providing the support frame 17 , the support frame 17 fixes and supports the column 16 , and the air bag 41 is fixed and supported through the column 16 .

[0070] Specifically, Figure 6 As shown: the guide assembly 7 includes a multi-way chimney 71 which is connected to the four corners of the upper surface of the furnace 1, and the top of the multi-way chimney 71 is rotatably connected to the drainage pipe 72. It also includes a steam base pipe 73 fixedly connected to the upper surface of the sealing tank 8, and a constant pressure valve 75 is installed at the bottom end of the steam base pipe 73. The top of the steam base pipe 73 is rotatably connected to the pressure pipe 74, and the top of the pressure pipe 74 is fixedly connected to the inner wall of the drainage pipe 72.

[0071] By providing a multi-channel chimney 71, smoke can be kept entering the multi-channel chimney 71 through the four corners of the top of the furnace 1, which can achieve a suction effect under the guidance of steam, reduce the amount of smoke discharged through the smoke holes 14, and thus achieve centralized discharge of smoke.

[0072] Specifically, Figure 8 As shown: the active control component 4 includes an air bag 41 fixedly connected to the top of the column 16, the upper surface of the air bag 41 is connected to a cylinder 42, the inner wall of the cylinder 42 is movably connected to an airtight piston 43, the upper surface of the airtight piston 43 is fixedly connected to a spline shaft 44, and the spline shaft 44 slides in cooperation with the top of the cylinder 42;

[0073] A fixed plate 45 is fixedly connected to the surface of the spline shaft 44, and two sliding balls 46 are symmetrically arranged on the surface of the fixed plate 45;

[0074] The surface of the air bag 41 is provided with a protective tube 48, the inner wall of the protective tube 48 is fixedly connected with a guide sleeve 49, and the inner wall of the guide sleeve 49 is symmetrically provided with two arc grooves 47 for sliding with the sliding ball 46;

[0075] The bottom end of the casing 48 is fixedly connected to the surface of the combustion adjustment assembly 3;

[0076] The diverter ring 5 and the bottom seal 11 are both fixedly connected to the surface of the spline shaft 44 . The diverter ring 5 includes a ring body 51 , and a dispersion surface 52 and a gathering surface 53 arranged on the upper surface of the ring body 51 .

[0077] The spline shaft 44 is splined to the top of the cylinder 42 cover so that it can only slide axially but cannot rotate. The fixed plate 45 on the mating surface can prevent the sealing of the airtight piston 43 from being affected by large torque.

[0078] At the same time, the setting of the protective sleeve 48 is adopted to effectively prevent the air bag 41 from being overheated, and to prevent the cylinder 42 and the internal airtight piston 43 from overheating and causing component failure. The protective sleeve 48 is heated and transfers heat through the fins 15, thereby maintaining stable heating and having a certain protective effect.

[0079] Specifically, Figure 2 As shown: a furnace door 12 for adding fuel is provided on one side of the furnace 1, and a cleaning port 13 is opened on one side of the base 2.

[0080] The furnace door 12 can conveniently put in fuel, and can reduce the internal temperature emission at the same time, and ensure the heating effect of the sealed tank 8. At the same time, the cleaning port 13 can collect the ashes dropped from the air hole 33 to avoid being blown away by the wind, which is convenient for processing.

[0081] Specifically, Figure 7 As shown: the combustion adjustment assembly 3 includes a fuel rack 31 fixedly connected to the inner wall of the furnace 1, and a wind disc 32 is slidably fitted on the lower surface of the fuel rack 31, and a plurality of wind holes 33 are opened on the surfaces of the wind disc 32 and the fuel rack 31;

[0082] The inner wall of the wind disc 32 is fixedly connected with a slip ring 34, and the slip ring 34 penetrates and slides on the inner wall of the fuel rack 31, and the slip ring 34 is fixedly connected to the bottom end of the casing 48;

[0083] A bearing 35 is fixedly connected to the inner wall of the wind disc 32 . The bearing 35 is rotatably disposed on the surface of the column 16 . The bottom end of the protective tube 48 is fixedly connected to the surface of the bearing 35 .

[0084] By setting up a fuel regulating assembly, the air disk 32 can rotate with the rotation of the protective tube 48 and slide on the surface of the fuel rack 31, so that the ventilation volume changes when the two air holes 33 are offset from each other, which can control the combustion speed, avoid fire caused by excessively rapid temperature rise, and effectively maintain a slow and continuous temperature rise to maintain sufficient smoke production.

[0085] Specifically, Figure 1 As shown: a water supply valve 18 is installed on the upper surface of the sealed tank 8, and a one-way air intake valve connected to the sealed tank 8 is also arranged on one side of the water supply valve 18.

[0086] By setting the water replenishment valve 18, the water replenishment valve 18 can conveniently replenish the water source in the sealed tank 8. At the same time, a one-way air inlet valve is set on one side to ensure that external gas can enter the sealed tank 8 in one direction and keep the internal water flow out normally.

[0087] Specifically, Fig. 9As shown: the shutter 6 includes a sealing chamber 61 fixedly connected to one side of the base 2, a pressure reducing piston 62 is slidably provided on the inner wall of the sealing chamber 61, a tension spring 63 is fixedly connected to one side of the pressure reducing piston 62, a rotating spring seat 64 is installed at the other end of the tension spring 63, a threaded rod 65 is rotatably provided on one side of the rotating spring seat 64, and the threaded rod 65 is threadedly penetrated through one side of the sealing chamber 61;

[0088] The inner wall of the sealing chamber 61 is connected with a connecting pipe 9 , and the other end of the connecting pipe 9 is connected with the air bag 41 .

[0089] By setting the opener and shutter 6, the opener and shutter 6 can move with one end of the tension spring 63 by rotating the spring seat 64 when the threaded rod 65 rotates, and apply a pulling force to the pressure reducing piston 62 through the tension spring 63. When the pressure reducing piston 62 is subjected to an elastic pulling force, it can always keep the air bag 41 in a negative pressure state, compensate for the internal gas expansion coefficient, and realize the mode switching.

[0090] Specifically, Figure 2 As shown, the pressure tube 74 is arranged axially of the drainage tube 72, and the end of the drainage tube 72 is arranged in a trumpet-shaped opening.

[0091] The pressure pipe 74 and the drainage pipe 72 are axially arranged so that they are in the same direction. The high-pressure steam ejected from the pressure pipe 74 can guide the smoke and heat in the drainage pipe 72, causing them to fly a long distance and directly contact the ground. At the same time, the trumpet-shaped opening of the drainage pipe 72 can adapt to the diffuse flow of the steam ejected from the pressure pipe 74 and increase the dispersion area.

[0092] Specifically, Figure 7 As shown, fins 15 are evenly distributed on the surface of the air bag 41 , and the fins 15 are arranged in close contact with the inner wall of the protective tube 48 .

[0093] By providing the fins 15, heat can be conducted to the air bag 41 through the casing 48 during use, serving as a heat conduction medium. Meanwhile, in the process of humidifying the fuel surface by water splashing, a small amount of water can enter the casing 48. After cooling the cylinder 42, the water contacts the fins 15. The water evaporates in the fins 15 to cool the air bag 41 and the fins 15, thereby realizing the disconnection of the water flow and the overall resetting, and avoiding the fuel being extinguished due to excessive water discharge.

[0094] When the present solution is used, fuel is added into the furnace 1 through the furnace door 12, and after the fuel is ignited, fuel is continuously added to make it burn and ensure that the fuel is sufficient. When the internal flame is basically formed, it continues to cover multiple layers of fuel until there is no obvious flame and smoke. At this time, the furnace door 12 can be closed, and the active control component 4 can be activated through the opener 6;

[0095] After the active control component 4 is activated, as the temperature in the furnace 1 rises, if the fuel remains in a smoking state, the temperature in the furnace 1 does not rise directly. If the temperature gradually rises, as the temperature rises, the air bag 41 expands under the heat conduction of the fins 15 and the sleeve 48, so that the expanded gas in the air bag 41 enters the cylinder 42 and pushes the airtight piston 43 to move. The airtight piston 43 moves upward with the fixed plate 45, the diverter ring 5 and the bottom seal 11 through the spline shaft 44. The fixed plate 45 slides in the arc groove 47 through the sliding ball 46 on the surface and rotates with the guide sleeve 49. The guide sleeve 49 can carry the sleeve 48. The sleeve 48 starts to rotate gradually with the wind disc 32 on the surface of the bearing 35, so that the wind disc 32 and the air hole 33 on the surface of the fuel rack 31 begin to be misaligned, and the oxygen intake is reduced, so that the combustion is in an insufficient state, preventing the temperature from continuing to rise and causing an open flame.

[0096] If some flammable fuels change from a smoking state to a ignition state, the temperature of the furnace 1 rises rapidly. During this process, the wind disc 32 and the fuel rack 31 are in a completely staggered state, and the two wind holes 33 present a small gap of connected air. At this time, as the temperature continues to rise, the gas in the air bag 41 continues to expand, and the bottom seal 11 moves up and slides out of the bottom seal 10, so that the water in the sealing tank 8 flows out through the bottom seal 10, and the outflowing water contacts the diverter ring 5, and the diverter ring 5 diverts the water. At this time, based on the diverter ring 5 being in a higher state, most of the water is thrown to the surroundings at a longer distance in the furnace 1 under the action of the dispersion surface 52, so that the fuel at the edge contacts the water, and at the same time a small amount of water is gathered. Under the action of the surface 53, the water enters the casing 48, contacts the cylinder 42, the air bag 41 and the fins 15, and evaporates quickly and cools them. The expansion degree of the gas inside the cooled air bag 41 and the cylinder 42 is reduced, and the airtight piston 43 starts to retract with the spline shaft 44. At this time, the bottom seal 11 moves toward the bottom seal 10, and the diverter ring 5 starts to move away from the bottom seal 10, so that the water flow contacts the dispersion surface 52 of the diverter ring 5 and the throwing distance begins to decrease until the air bag 41 is cooled by the water flow, and the bottom seal 11 closes the bottom seal 10. At the same time, the water flow is evenly thrown on the fuel surface from far to near by the diverter ring 5, so that the fuel surface is wetted, the occurrence of open flames is suppressed, and a large amount of smoke is generated. The smoke can be dispersed over a large area through a number of smoke dispersion holes 14;

[0097] Among the above methods, based on the high cost of purchasing smoke fuel for current agricultural production, the direct burning of biomass fuel can greatly reduce costs. However, biomass fuel is very easy to burn directly, resulting in low smoke volume and excessive local heat. It has poor sustainability and has no obvious anti-frost effect on orchards.

[0098] This method can use any biomass fuel, including firewood, straw, cotton stalks, weeds, corn stalks, etc., which can be directly put in as fuel. Compared with directly purchasing smoke fuel, the cost is lower and it can be obtained locally;

[0099] During use, no personnel supervision is required after ignition, open flames can be avoided, and long-term smoke production can be guaranteed after one-time fuel is added. No electricity is required, and it has extremely wide applicability to remote areas of large farms. It can adaptively adjust the air intake and uniform water spraying for fire extinguishing, ensure continuous internal smoke production, and play a long-term endurance role in frost prevention in orchards.

[0100] When a high temperature orchard heating operation is required in a short period of time, the traditional method is to directly build a fire rack. The flame heat of this method evaporates a large amount of heat upward, and the heating effect on the bottom mainly relies on thermal radiation. The coverage is small, and multiple fire points are often required, which has a certain impact on the safety of the orchard.

[0101] In this solution, when a higher temperature heating operation is required, the threaded rod 65 of the opener and shutter 6 is rotated to extend the tension spring 63 through the rotating spring seat 64, and then the tension spring 63 provides a pulling force to the negative pressure piston. The negative pressure piston slides in the sealing chamber 61 and extracts the air in the air bag 41 through the connecting pipe 9. The tension spring 63 continuously provides a pulling force, so that its gas expansion coefficient directly acts on the length change of the tension spring 63, and the airtight piston 43 does not move. At this time, the internal flame loses control, and continuous combustion can be carried out. Air enters through the combustion regulating component 3, and the smoke and heat evaporate upward and are evenly distributed around through the smoke dissipation holes 14. When the sealed tank 8 After the water inside boils, steam is generated, and when the internal pressure reaches a certain threshold, the steam passes through the constant pressure valve 75, enters the steam base pipe 73, and enters the pressure pipe 74 to be ejected at high speed. The pressure pipe 74 is shorter than the drainage pipe 72, so that the steam is ejected through the pressure pipe 74 at high pressure and diffuses in a cone shape, and forms a negative pressure on one side of the drainage pipe 72. The flue gas and heat in the furnace 1 are drawn into the multi-pass chimney 71 and converge into the drainage pipe 72. The heat is mixed with the flue gas and steam, and is ejected in one direction at a long distance under the pressure of the steam. At the same time, the drainage pipe 72 and the pressure pipe 74 can be rotated to adjust the ejection direction.

[0102] Compared with the traditional fire method, this method uses steam as the power to carry the heat of smoke and flames and spray them obliquely downward, which can ensure that the heat diffuses downward, and the steam can settle the impurities that are not fully burned by the flames, reducing the impact of smoke on the orchard trees.

[0103] At the same time, the pressure of steam can spray heat onto the ground, so that the heat and smoke are dispersed in a fan shape after contacting the ground. The heat rises evenly, making the fruit trees within a certain range heated more evenly as a whole, and the anti-frost effect is better. It has a particularly outstanding effect when used in an environment where the temperature drops suddenly.

[0104] This solution proposes two operating modes - long-term endurance mode and high-heat heating mode. Through the adjustment of the opener and shutter 6, the user can continuously generate smoke for frost prevention while quickly heating the orchard through high-temperature heating operations in a short time. This mode switching not only improves the flexibility of the equipment, but also makes it more widely applicable under different climatic conditions. And through the linkage design of components such as the air bag 41, the airtight piston 43, the spline shaft 44, and the wind disc 32, the device can automatically adjust the air intake according to the temperature changes in the furnace 1 to prevent excessive burning of the open flame, thereby ensuring the persistence of smoke generation. This automatic adjustment function reduces the dependence on manual supervision, is particularly suitable for applications in large-scale orchards, and reduces labor costs.

[0105] The device realizes automatic and uniform water spraying through the design of the diverter ring 5 and the bottom seal 11. When the temperature in the furnace 1 is too high, the water is evenly distributed to the fuel surface through the diverter ring 5, so that the fuel is moistened, the generation of open flames is suppressed, and the smoke is ensured to continue. This design ensures the safety of the combustion process and the stable output of the smoke volume.

[0106] In high-heat heating mode, the device uses steam pressure to drive smoke and heat to spray diagonally downward, so that the heat effectively covers the fruit trees and the ground. Compared with the traditional fire heating method, this design can more efficiently transfer heat to the lower part of the fruit trees, avoiding heat waste, and steam helps to settle impurities and reduce the negative impact of smoke on the fruit trees.

[0107] The device allows the use of a variety of biomass fuels such as firewood, straw, cotton stalks, etc. as the main energy source, which not only greatly reduces the fuel cost, but also realizes the convenience of using local materials. At the same time, the automatic control system effectively suppresses excessive combustion of fuel, prolongs the fuel life, and improves resource utilization.

[0108] The device uses steam as power to pull the airflow in the furnace 1, so that the airflow outside can quickly pass through the combustion adjustment component 3, so that the fuel pile can obtain more oxygen, enhance combustion, and thus achieve flame enlargement and heat gain. At the same time, through uniform smoke output, the concentrated emission of pollutants is reduced. This environmentally friendly design can significantly reduce the environmental impact in long-term use, which meets the needs of modern agricultural production for low-carbon and green development.

[0109] In summary, the anti-frost device has demonstrated significant effects in energy saving and consumption reduction, automatic control, flexible use and efficient heating, and through the flexible switching of dual modes, it provides a more reliable and economical solution for orchard frost prevention.

[0110] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A frost protection device for an orchard, characterized in that: include: Furnace (1); The lower surface of the furnace (1) is fixedly connected to a base (2), and the upper surface of the inner wall of the furnace (1) is penetrated and fixed with a sealing tank (8); Combustion adjustment assembly (3); The combustion adjustment component (3) is installed on the inner wall of the furnace (1) and is used to control the air intake and combustion amount; Active regulatory components (4); The active regulating component (4) is installed through the inner wall of the combustion regulating component (3) and is used to control the opening amount of the combustion regulating component (3) and the sealing tank (8); Opener (6); The shutter (6) is connected to the active control component (4) and is used to manually switch the overall operation anti-frost mode; Bottom seal (10); Bottom seal (11); The bottom seal (10) penetrates and is fixed to the bottom of the sealed can (8), and the bottom seal plug (11) fits and slides above the inner wall of the bottom seal (10), and the lower surface of the bottom seal plug (11) is fixedly connected to the top of the active control component (4); Guide assembly (7); The guide assembly (7) is connected to the furnace (1) and the sealing tank (8) respectively, and is used for directional discharge of steam and flue gas; A plurality of smoke diffusion holes (14) are evenly arranged on the side wall of the furnace (1) for evenly dispersing the smoke in the furnace (1); A diverter ring (5) is provided below the bottom seal (10), and the inner wall of the diverter ring (5) is fixedly connected to the surface of the active regulating component (4).

2. The anti-frost device for orchard according to claim 1, characterized in that: The inner wall of the base (2) is fixedly connected to a support frame (17), a column (16) is fixedly passed through the surface of the support frame (17), and the top end of the column (16) is mounted on the bottom end of the active control component (4).

3. The anti-frost device for orchard according to claim 1, characterized in that: The guide assembly (7) comprises a multi-way chimney (71) which is connected to the four corners of the upper surface of the furnace (1), the top end of the multi-way chimney (71) is rotatably connected to a drainage pipe (72), and also comprises a steam base pipe (73) which is fixedly connected to the upper surface of the sealing tank (8), a constant pressure valve (75) is installed at the bottom end of the steam base pipe (73), the top end of the steam base pipe (73) is rotatably connected to a pressure pipe (74), and the top end of the pressure pipe (74) is fixedly connected to the inner wall of the drainage pipe (72).

4. The anti-frost device for orchard according to claim 2, characterized in that: The active control component (4) comprises an air bag (41) fixedly connected to the top of the column (16); the upper surface of the air bag (41) is connected to a cylinder (42); the inner wall of the cylinder (42) is movably connected to an airtight piston (43); the upper surface of the airtight piston (43) is fixedly connected to a spline shaft (44); the spline shaft (44) slides on the top of the cylinder (42); A fixed plate (45) is fixedly connected to the surface of the spline shaft (44), and two sliding balls (46) are symmetrically arranged on the surface of the fixed plate (45); The surface of the air bag (41) is provided with a protective tube (48), the inner wall of the protective tube (48) is fixedly connected with a guide sleeve (49), and the inner wall of the guide sleeve (49) is symmetrically provided with two arc grooves (47) for sliding with the sliding ball (46); The bottom end of the protective tube (48) is fixedly connected to the surface of the combustion adjustment component (3); The diverter ring (5) and the bottom seal (11) are both fixedly connected to the surface of the spline shaft (44); the diverter ring (5) comprises a ring body (51), and a dispersion surface (52) and a gathering surface (53) arranged on the upper surface of the ring body (51).

5. The anti-frost device for orchard according to claim 1, characterized in that: A furnace door (12) for adding fuel is provided on one side of the furnace (1), and a cleaning port (13) is provided on one side of the base (2).

6. The frost protection device for orchards according to claim 4, characterized in that: The combustion adjustment assembly (3) comprises a fuel rack (31) fixedly connected to the inner wall of the furnace (1); a wind disk (32) is slidably fitted on the lower surface of the fuel rack (31); and a plurality of wind holes (33) are provided on the surfaces of the wind disk (32) and the fuel rack (31); The inner wall of the wind disk (32) is fixedly connected with a slip ring (34), the slip ring (34) penetrates and slides on the inner wall of the fuel rack (31), and the slip ring (34) is fixedly connected to the bottom end of the casing (48); The inner wall of the wind disk (32) is fixedly connected with a bearing (35), and the bearing (35) is rotatably arranged on the surface of the column (16), and the bottom end of the protective tube (48) is fixedly connected to the surface of the bearing (35).

7. The anti-frost device for orchard according to claim 1, characterized in that: A water replenishment valve (18) is installed on the upper surface of the sealed tank (8), and a one-way air inlet valve connected to the sealed tank (8) is also arranged on one side of the water replenishment valve (18).

8. The anti-frost device for orchards according to claim 4, characterized in that: The shutter (6) comprises a sealing chamber (61) fixedly connected to one side of the base (2); a pressure reducing piston (62) is slidably provided on the inner wall of the sealing chamber (61); a tension spring (63) is fixedly connected to one side of the pressure reducing piston (62); a rotating spring seat (64) is installed at the other end of the tension spring (63); a threaded rod (65) is rotatably provided on one side of the rotating spring seat (64); and the threaded rod (65) is threadedly penetrated through one side of the sealing chamber (61); The inner wall of the sealed chamber (61) is connected to a connecting pipe (9), and the other end of the connecting pipe (9) is connected to the air bag (41).

9. The frost protection device for orchards according to claim 3, characterized in that: The pressure tube (74) is arranged axially of the drainage tube (72), and the end of the drainage tube (72) is arranged in a trumpet-shaped opening.

10. The anti-frost device for orchard according to claim 4, characterized in that: The surface of the air bag (41) is evenly distributed with fins (15), and the fins (15) are arranged in close contact with the inner wall of the casing (48).

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